diff --git a/game/ace.js b/game/ace.js
deleted file mode 100644
index b68e0527a..000000000
--- a/game/ace.js
+++ /dev/null
@@ -1,19965 +0,0 @@
-/* ***** BEGIN LICENSE BLOCK *****
- * Distributed under the BSD license:
- *
- * Copyright (c) 2010, Ajax.org B.V.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *     * Neither the name of Ajax.org B.V. nor the
- *       names of its contributors may be used to endorse or promote products
- *       derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * ***** END LICENSE BLOCK ***** */
-
-/**
- * Define a module along with a payload
- * @param module a name for the payload
- * @param payload a function to call with (require, exports, module) params
- */
-
-(function() {
-
-var ACE_NAMESPACE = "ace";
-
-var global = (function() { return this; })();
-if (!global && typeof window != "undefined") global = window; // strict mode
-
-
-if (!ACE_NAMESPACE && typeof requirejs !== "undefined")
-    return;
-
-
-var define = function(module, deps, payload) {
-    if (typeof module !== "string") {
-        if (define.original)
-            define.original.apply(this, arguments);
-        else {
-            console.error("dropping module because define wasn\'t a string.");
-            console.trace();
-        }
-        return;
-    }
-    if (arguments.length == 2)
-        payload = deps;
-    if (!define.modules[module]) {
-        define.payloads[module] = payload;
-        define.modules[module] = null;
-    }
-};
-
-define.modules = {};
-define.payloads = {};
-
-/**
- * Get at functionality define()ed using the function above
- */
-var _require = function(parentId, module, callback) {
-    if (typeof module === "string") {
-        var payload = lookup(parentId, module);
-        if (payload != undefined) {
-            callback && callback();
-            return payload;
-        }
-    } else if (Object.prototype.toString.call(module) === "[object Array]") {
-        var params = [];
-        for (var i = 0, l = module.length; i < l; ++i) {
-            var dep = lookup(parentId, module[i]);
-            if (dep == undefined && require.original)
-                return;
-            params.push(dep);
-        }
-        return callback && callback.apply(null, params) || true;
-    }
-};
-
-var require = function(module, callback) {
-    var packagedModule = _require("", module, callback);
-    if (packagedModule == undefined && require.original)
-        return require.original.apply(this, arguments);
-    return packagedModule;
-};
-
-var normalizeModule = function(parentId, moduleName) {
-    // normalize plugin requires
-    if (moduleName.indexOf("!") !== -1) {
-        var chunks = moduleName.split("!");
-        return normalizeModule(parentId, chunks[0]) + "!" + normalizeModule(parentId, chunks[1]);
-    }
-    // normalize relative requires
-    if (moduleName.charAt(0) == ".") {
-        var base = parentId.split("/").slice(0, -1).join("/");
-        moduleName = base + "/" + moduleName;
-
-        while(moduleName.indexOf(".") !== -1 && previous != moduleName) {
-            var previous = moduleName;
-            moduleName = moduleName.replace(/\/\.\//, "/").replace(/[^\/]+\/\.\.\//, "");
-        }
-    }
-    return moduleName;
-};
-
-/**
- * Internal function to lookup moduleNames and resolve them by calling the
- * definition function if needed.
- */
-var lookup = function(parentId, moduleName) {
-    moduleName = normalizeModule(parentId, moduleName);
-
-    var module = define.modules[moduleName];
-    if (!module) {
-        module = define.payloads[moduleName];
-        if (typeof module === 'function') {
-            var exports = {};
-            var mod = {
-                id: moduleName,
-                uri: '',
-                exports: exports,
-                packaged: true
-            };
-
-            var req = function(module, callback) {
-                return _require(moduleName, module, callback);
-            };
-
-            var returnValue = module(req, exports, mod);
-            exports = returnValue || mod.exports;
-            define.modules[moduleName] = exports;
-            delete define.payloads[moduleName];
-        }
-        module = define.modules[moduleName] = exports || module;
-    }
-    return module;
-};
-
-function exportAce(ns) {
-    var root = global;
-    if (ns) {
-        if (!global[ns])
-            global[ns] = {};
-        root = global[ns];
-    }
-
-    if (!root.define || !root.define.packaged) {
-        define.original = root.define;
-        root.define = define;
-        root.define.packaged = true;
-    }
-
-    if (!root.require || !root.require.packaged) {
-        require.original = root.require;
-        root.require = require;
-        root.require.packaged = true;
-    }
-}
-
-exportAce(ACE_NAMESPACE);
-
-})();
-
-ace.define("ace/lib/regexp",["require","exports","module"], function(require, exports, module) {
-"use strict";
-
-    var real = {
-            exec: RegExp.prototype.exec,
-            test: RegExp.prototype.test,
-            match: String.prototype.match,
-            replace: String.prototype.replace,
-            split: String.prototype.split
-        },
-        compliantExecNpcg = real.exec.call(/()??/, "")[1] === undefined, // check `exec` handling of nonparticipating capturing groups
-        compliantLastIndexIncrement = function () {
-            var x = /^/g;
-            real.test.call(x, "");
-            return !x.lastIndex;
-        }();
-
-    if (compliantLastIndexIncrement && compliantExecNpcg)
-        return;
-    RegExp.prototype.exec = function (str) {
-        var match = real.exec.apply(this, arguments),
-            name, r2;
-        if ( typeof(str) == 'string' && match) {
-            if (!compliantExecNpcg && match.length > 1 && indexOf(match, "") > -1) {
-                r2 = RegExp(this.source, real.replace.call(getNativeFlags(this), "g", ""));
-                real.replace.call(str.slice(match.index), r2, function () {
-                    for (var i = 1; i < arguments.length - 2; i++) {
-                        if (arguments[i] === undefined)
-                            match[i] = undefined;
-                    }
-                });
-            }
-            if (this._xregexp && this._xregexp.captureNames) {
-                for (var i = 1; i < match.length; i++) {
-                    name = this._xregexp.captureNames[i - 1];
-                    if (name)
-                       match[name] = match[i];
-                }
-            }
-            if (!compliantLastIndexIncrement && this.global && !match[0].length && (this.lastIndex > match.index))
-                this.lastIndex--;
-        }
-        return match;
-    };
-    if (!compliantLastIndexIncrement) {
-        RegExp.prototype.test = function (str) {
-            var match = real.exec.call(this, str);
-            if (match && this.global && !match[0].length && (this.lastIndex > match.index))
-                this.lastIndex--;
-            return !!match;
-        };
-    }
-
-    function getNativeFlags (regex) {
-        return (regex.global     ? "g" : "") +
-               (regex.ignoreCase ? "i" : "") +
-               (regex.multiline  ? "m" : "") +
-               (regex.extended   ? "x" : "") + // Proposed for ES4; included in AS3
-               (regex.sticky     ? "y" : "");
-    }
-
-    function indexOf (array, item, from) {
-        if (Array.prototype.indexOf) // Use the native array method if available
-            return array.indexOf(item, from);
-        for (var i = from || 0; i < array.length; i++) {
-            if (array[i] === item)
-                return i;
-        }
-        return -1;
-    }
-
-});
-
-ace.define("ace/lib/es5-shim",["require","exports","module"], function(require, exports, module) {
-
-function Empty() {}
-
-if (!Function.prototype.bind) {
-    Function.prototype.bind = function bind(that) { // .length is 1
-        var target = this;
-        if (typeof target != "function") {
-            throw new TypeError("Function.prototype.bind called on incompatible " + target);
-        }
-        var args = slice.call(arguments, 1); // for normal call
-        var bound = function () {
-
-            if (this instanceof bound) {
-
-                var result = target.apply(
-                    this,
-                    args.concat(slice.call(arguments))
-                );
-                if (Object(result) === result) {
-                    return result;
-                }
-                return this;
-
-            } else {
-                return target.apply(
-                    that,
-                    args.concat(slice.call(arguments))
-                );
-
-            }
-
-        };
-        if(target.prototype) {
-            Empty.prototype = target.prototype;
-            bound.prototype = new Empty();
-            Empty.prototype = null;
-        }
-        return bound;
-    };
-}
-var call = Function.prototype.call;
-var prototypeOfArray = Array.prototype;
-var prototypeOfObject = Object.prototype;
-var slice = prototypeOfArray.slice;
-var _toString = call.bind(prototypeOfObject.toString);
-var owns = call.bind(prototypeOfObject.hasOwnProperty);
-var defineGetter;
-var defineSetter;
-var lookupGetter;
-var lookupSetter;
-var supportsAccessors;
-if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
-    defineGetter = call.bind(prototypeOfObject.__defineGetter__);
-    defineSetter = call.bind(prototypeOfObject.__defineSetter__);
-    lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
-    lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
-}
-if ([1,2].splice(0).length != 2) {
-    if(function() { // test IE < 9 to splice bug - see issue #138
-        function makeArray(l) {
-            var a = new Array(l+2);
-            a[0] = a[1] = 0;
-            return a;
-        }
-        var array = [], lengthBefore;
-
-        array.splice.apply(array, makeArray(20));
-        array.splice.apply(array, makeArray(26));
-
-        lengthBefore = array.length; //46
-        array.splice(5, 0, "XXX"); // add one element
-
-        lengthBefore + 1 == array.length
-
-        if (lengthBefore + 1 == array.length) {
-            return true;// has right splice implementation without bugs
-        }
-    }()) {//IE 6/7
-        var array_splice = Array.prototype.splice;
-        Array.prototype.splice = function(start, deleteCount) {
-            if (!arguments.length) {
-                return [];
-            } else {
-                return array_splice.apply(this, [
-                    start === void 0 ? 0 : start,
-                    deleteCount === void 0 ? (this.length - start) : deleteCount
-                ].concat(slice.call(arguments, 2)))
-            }
-        };
-    } else {//IE8
-        Array.prototype.splice = function(pos, removeCount){
-            var length = this.length;
-            if (pos > 0) {
-                if (pos > length)
-                    pos = length;
-            } else if (pos == void 0) {
-                pos = 0;
-            } else if (pos < 0) {
-                pos = Math.max(length + pos, 0);
-            }
-
-            if (!(pos+removeCount < length))
-                removeCount = length - pos;
-
-            var removed = this.slice(pos, pos+removeCount);
-            var insert = slice.call(arguments, 2);
-            var add = insert.length;
-            if (pos === length) {
-                if (add) {
-                    this.push.apply(this, insert);
-                }
-            } else {
-                var remove = Math.min(removeCount, length - pos);
-                var tailOldPos = pos + remove;
-                var tailNewPos = tailOldPos + add - remove;
-                var tailCount = length - tailOldPos;
-                var lengthAfterRemove = length - remove;
-
-                if (tailNewPos < tailOldPos) { // case A
-                    for (var i = 0; i < tailCount; ++i) {
-                        this[tailNewPos+i] = this[tailOldPos+i];
-                    }
-                } else if (tailNewPos > tailOldPos) { // case B
-                    for (i = tailCount; i--; ) {
-                        this[tailNewPos+i] = this[tailOldPos+i];
-                    }
-                } // else, add == remove (nothing to do)
-
-                if (add && pos === lengthAfterRemove) {
-                    this.length = lengthAfterRemove; // truncate array
-                    this.push.apply(this, insert);
-                } else {
-                    this.length = lengthAfterRemove + add; // reserves space
-                    for (i = 0; i < add; ++i) {
-                        this[pos+i] = insert[i];
-                    }
-                }
-            }
-            return removed;
-        };
-    }
-}
-if (!Array.isArray) {
-    Array.isArray = function isArray(obj) {
-        return _toString(obj) == "[object Array]";
-    };
-}
-var boxedString = Object("a"),
-    splitString = boxedString[0] != "a" || !(0 in boxedString);
-
-if (!Array.prototype.forEach) {
-    Array.prototype.forEach = function forEach(fun /*, thisp*/) {
-        var object = toObject(this),
-            self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                object,
-            thisp = arguments[1],
-            i = -1,
-            length = self.length >>> 0;
-        if (_toString(fun) != "[object Function]") {
-            throw new TypeError(); // TODO message
-        }
-
-        while (++i < length) {
-            if (i in self) {
-                fun.call(thisp, self[i], i, object);
-            }
-        }
-    };
-}
-if (!Array.prototype.map) {
-    Array.prototype.map = function map(fun /*, thisp*/) {
-        var object = toObject(this),
-            self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                object,
-            length = self.length >>> 0,
-            result = Array(length),
-            thisp = arguments[1];
-        if (_toString(fun) != "[object Function]") {
-            throw new TypeError(fun + " is not a function");
-        }
-
-        for (var i = 0; i < length; i++) {
-            if (i in self)
-                result[i] = fun.call(thisp, self[i], i, object);
-        }
-        return result;
-    };
-}
-if (!Array.prototype.filter) {
-    Array.prototype.filter = function filter(fun /*, thisp */) {
-        var object = toObject(this),
-            self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                    object,
-            length = self.length >>> 0,
-            result = [],
-            value,
-            thisp = arguments[1];
-        if (_toString(fun) != "[object Function]") {
-            throw new TypeError(fun + " is not a function");
-        }
-
-        for (var i = 0; i < length; i++) {
-            if (i in self) {
-                value = self[i];
-                if (fun.call(thisp, value, i, object)) {
-                    result.push(value);
-                }
-            }
-        }
-        return result;
-    };
-}
-if (!Array.prototype.every) {
-    Array.prototype.every = function every(fun /*, thisp */) {
-        var object = toObject(this),
-            self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                object,
-            length = self.length >>> 0,
-            thisp = arguments[1];
-        if (_toString(fun) != "[object Function]") {
-            throw new TypeError(fun + " is not a function");
-        }
-
-        for (var i = 0; i < length; i++) {
-            if (i in self && !fun.call(thisp, self[i], i, object)) {
-                return false;
-            }
-        }
-        return true;
-    };
-}
-if (!Array.prototype.some) {
-    Array.prototype.some = function some(fun /*, thisp */) {
-        var object = toObject(this),
-            self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                object,
-            length = self.length >>> 0,
-            thisp = arguments[1];
-        if (_toString(fun) != "[object Function]") {
-            throw new TypeError(fun + " is not a function");
-        }
-
-        for (var i = 0; i < length; i++) {
-            if (i in self && fun.call(thisp, self[i], i, object)) {
-                return true;
-            }
-        }
-        return false;
-    };
-}
-if (!Array.prototype.reduce) {
-    Array.prototype.reduce = function reduce(fun /*, initial*/) {
-        var object = toObject(this),
-            self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                object,
-            length = self.length >>> 0;
-        if (_toString(fun) != "[object Function]") {
-            throw new TypeError(fun + " is not a function");
-        }
-        if (!length && arguments.length == 1) {
-            throw new TypeError("reduce of empty array with no initial value");
-        }
-
-        var i = 0;
-        var result;
-        if (arguments.length >= 2) {
-            result = arguments[1];
-        } else {
-            do {
-                if (i in self) {
-                    result = self[i++];
-                    break;
-                }
-                if (++i >= length) {
-                    throw new TypeError("reduce of empty array with no initial value");
-                }
-            } while (true);
-        }
-
-        for (; i < length; i++) {
-            if (i in self) {
-                result = fun.call(void 0, result, self[i], i, object);
-            }
-        }
-
-        return result;
-    };
-}
-if (!Array.prototype.reduceRight) {
-    Array.prototype.reduceRight = function reduceRight(fun /*, initial*/) {
-        var object = toObject(this),
-            self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                object,
-            length = self.length >>> 0;
-        if (_toString(fun) != "[object Function]") {
-            throw new TypeError(fun + " is not a function");
-        }
-        if (!length && arguments.length == 1) {
-            throw new TypeError("reduceRight of empty array with no initial value");
-        }
-
-        var result, i = length - 1;
-        if (arguments.length >= 2) {
-            result = arguments[1];
-        } else {
-            do {
-                if (i in self) {
-                    result = self[i--];
-                    break;
-                }
-                if (--i < 0) {
-                    throw new TypeError("reduceRight of empty array with no initial value");
-                }
-            } while (true);
-        }
-
-        do {
-            if (i in this) {
-                result = fun.call(void 0, result, self[i], i, object);
-            }
-        } while (i--);
-
-        return result;
-    };
-}
-if (!Array.prototype.indexOf || ([0, 1].indexOf(1, 2) != -1)) {
-    Array.prototype.indexOf = function indexOf(sought /*, fromIndex */ ) {
-        var self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                toObject(this),
-            length = self.length >>> 0;
-
-        if (!length) {
-            return -1;
-        }
-
-        var i = 0;
-        if (arguments.length > 1) {
-            i = toInteger(arguments[1]);
-        }
-        i = i >= 0 ? i : Math.max(0, length + i);
-        for (; i < length; i++) {
-            if (i in self && self[i] === sought) {
-                return i;
-            }
-        }
-        return -1;
-    };
-}
-if (!Array.prototype.lastIndexOf || ([0, 1].lastIndexOf(0, -3) != -1)) {
-    Array.prototype.lastIndexOf = function lastIndexOf(sought /*, fromIndex */) {
-        var self = splitString && _toString(this) == "[object String]" ?
-                this.split("") :
-                toObject(this),
-            length = self.length >>> 0;
-
-        if (!length) {
-            return -1;
-        }
-        var i = length - 1;
-        if (arguments.length > 1) {
-            i = Math.min(i, toInteger(arguments[1]));
-        }
-        i = i >= 0 ? i : length - Math.abs(i);
-        for (; i >= 0; i--) {
-            if (i in self && sought === self[i]) {
-                return i;
-            }
-        }
-        return -1;
-    };
-}
-if (!Object.getPrototypeOf) {
-    Object.getPrototypeOf = function getPrototypeOf(object) {
-        return object.__proto__ || (
-            object.constructor ?
-            object.constructor.prototype :
-            prototypeOfObject
-        );
-    };
-}
-if (!Object.getOwnPropertyDescriptor) {
-    var ERR_NON_OBJECT = "Object.getOwnPropertyDescriptor called on a " +
-                         "non-object: ";
-    Object.getOwnPropertyDescriptor = function getOwnPropertyDescriptor(object, property) {
-        if ((typeof object != "object" && typeof object != "function") || object === null)
-            throw new TypeError(ERR_NON_OBJECT + object);
-        if (!owns(object, property))
-            return;
-
-        var descriptor, getter, setter;
-        descriptor =  { enumerable: true, configurable: true };
-        if (supportsAccessors) {
-            var prototype = object.__proto__;
-            object.__proto__ = prototypeOfObject;
-
-            var getter = lookupGetter(object, property);
-            var setter = lookupSetter(object, property);
-            object.__proto__ = prototype;
-
-            if (getter || setter) {
-                if (getter) descriptor.get = getter;
-                if (setter) descriptor.set = setter;
-                return descriptor;
-            }
-        }
-        descriptor.value = object[property];
-        return descriptor;
-    };
-}
-if (!Object.getOwnPropertyNames) {
-    Object.getOwnPropertyNames = function getOwnPropertyNames(object) {
-        return Object.keys(object);
-    };
-}
-if (!Object.create) {
-    var createEmpty;
-    if (Object.prototype.__proto__ === null) {
-        createEmpty = function () {
-            return { "__proto__": null };
-        };
-    } else {
-        createEmpty = function () {
-            var empty = {};
-            for (var i in empty)
-                empty[i] = null;
-            empty.constructor =
-            empty.hasOwnProperty =
-            empty.propertyIsEnumerable =
-            empty.isPrototypeOf =
-            empty.toLocaleString =
-            empty.toString =
-            empty.valueOf =
-            empty.__proto__ = null;
-            return empty;
-        }
-    }
-
-    Object.create = function create(prototype, properties) {
-        var object;
-        if (prototype === null) {
-            object = createEmpty();
-        } else {
-            if (typeof prototype != "object")
-                throw new TypeError("typeof prototype["+(typeof prototype)+"] != 'object'");
-            var Type = function () {};
-            Type.prototype = prototype;
-            object = new Type();
-            object.__proto__ = prototype;
-        }
-        if (properties !== void 0)
-            Object.defineProperties(object, properties);
-        return object;
-    };
-}
-
-function doesDefinePropertyWork(object) {
-    try {
-        Object.defineProperty(object, "sentinel", {});
-        return "sentinel" in object;
-    } catch (exception) {
-    }
-}
-if (Object.defineProperty) {
-    var definePropertyWorksOnObject = doesDefinePropertyWork({});
-    var definePropertyWorksOnDom = typeof document == "undefined" ||
-        doesDefinePropertyWork(document.createElement("div"));
-    if (!definePropertyWorksOnObject || !definePropertyWorksOnDom) {
-        var definePropertyFallback = Object.defineProperty;
-    }
-}
-
-if (!Object.defineProperty || definePropertyFallback) {
-    var ERR_NON_OBJECT_DESCRIPTOR = "Property description must be an object: ";
-    var ERR_NON_OBJECT_TARGET = "Object.defineProperty called on non-object: "
-    var ERR_ACCESSORS_NOT_SUPPORTED = "getters & setters can not be defined " +
-                                      "on this javascript engine";
-
-    Object.defineProperty = function defineProperty(object, property, descriptor) {
-        if ((typeof object != "object" && typeof object != "function") || object === null)
-            throw new TypeError(ERR_NON_OBJECT_TARGET + object);
-        if ((typeof descriptor != "object" && typeof descriptor != "function") || descriptor === null)
-            throw new TypeError(ERR_NON_OBJECT_DESCRIPTOR + descriptor);
-        if (definePropertyFallback) {
-            try {
-                return definePropertyFallback.call(Object, object, property, descriptor);
-            } catch (exception) {
-            }
-        }
-        if (owns(descriptor, "value")) {
-
-            if (supportsAccessors && (lookupGetter(object, property) ||
-                                      lookupSetter(object, property)))
-            {
-                var prototype = object.__proto__;
-                object.__proto__ = prototypeOfObject;
-                delete object[property];
-                object[property] = descriptor.value;
-                object.__proto__ = prototype;
-            } else {
-                object[property] = descriptor.value;
-            }
-        } else {
-            if (!supportsAccessors)
-                throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
-            if (owns(descriptor, "get"))
-                defineGetter(object, property, descriptor.get);
-            if (owns(descriptor, "set"))
-                defineSetter(object, property, descriptor.set);
-        }
-
-        return object;
-    };
-}
-if (!Object.defineProperties) {
-    Object.defineProperties = function defineProperties(object, properties) {
-        for (var property in properties) {
-            if (owns(properties, property))
-                Object.defineProperty(object, property, properties[property]);
-        }
-        return object;
-    };
-}
-if (!Object.seal) {
-    Object.seal = function seal(object) {
-        return object;
-    };
-}
-if (!Object.freeze) {
-    Object.freeze = function freeze(object) {
-        return object;
-    };
-}
-try {
-    Object.freeze(function () {});
-} catch (exception) {
-    Object.freeze = (function freeze(freezeObject) {
-        return function freeze(object) {
-            if (typeof object == "function") {
-                return object;
-            } else {
-                return freezeObject(object);
-            }
-        };
-    })(Object.freeze);
-}
-if (!Object.preventExtensions) {
-    Object.preventExtensions = function preventExtensions(object) {
-        return object;
-    };
-}
-if (!Object.isSealed) {
-    Object.isSealed = function isSealed(object) {
-        return false;
-    };
-}
-if (!Object.isFrozen) {
-    Object.isFrozen = function isFrozen(object) {
-        return false;
-    };
-}
-if (!Object.isExtensible) {
-    Object.isExtensible = function isExtensible(object) {
-        if (Object(object) === object) {
-            throw new TypeError(); // TODO message
-        }
-        var name = '';
-        while (owns(object, name)) {
-            name += '?';
-        }
-        object[name] = true;
-        var returnValue = owns(object, name);
-        delete object[name];
-        return returnValue;
-    };
-}
-if (!Object.keys) {
-    var hasDontEnumBug = true,
-        dontEnums = [
-            "toString",
-            "toLocaleString",
-            "valueOf",
-            "hasOwnProperty",
-            "isPrototypeOf",
-            "propertyIsEnumerable",
-            "constructor"
-        ],
-        dontEnumsLength = dontEnums.length;
-
-    for (var key in {"toString": null}) {
-        hasDontEnumBug = false;
-    }
-
-    Object.keys = function keys(object) {
-
-        if (
-            (typeof object != "object" && typeof object != "function") ||
-            object === null
-        ) {
-            throw new TypeError("Object.keys called on a non-object");
-        }
-
-        var keys = [];
-        for (var name in object) {
-            if (owns(object, name)) {
-                keys.push(name);
-            }
-        }
-
-        if (hasDontEnumBug) {
-            for (var i = 0, ii = dontEnumsLength; i < ii; i++) {
-                var dontEnum = dontEnums[i];
-                if (owns(object, dontEnum)) {
-                    keys.push(dontEnum);
-                }
-            }
-        }
-        return keys;
-    };
-
-}
-if (!Date.now) {
-    Date.now = function now() {
-        return new Date().getTime();
-    };
-}
-var ws = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003" +
-    "\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028" +
-    "\u2029\uFEFF";
-if (!String.prototype.trim || ws.trim()) {
-    ws = "[" + ws + "]";
-    var trimBeginRegexp = new RegExp("^" + ws + ws + "*"),
-        trimEndRegexp = new RegExp(ws + ws + "*$");
-    String.prototype.trim = function trim() {
-        return String(this).replace(trimBeginRegexp, "").replace(trimEndRegexp, "");
-    };
-}
-
-function toInteger(n) {
-    n = +n;
-    if (n !== n) { // isNaN
-        n = 0;
-    } else if (n !== 0 && n !== (1/0) && n !== -(1/0)) {
-        n = (n > 0 || -1) * Math.floor(Math.abs(n));
-    }
-    return n;
-}
-
-function isPrimitive(input) {
-    var type = typeof input;
-    return (
-        input === null ||
-        type === "undefined" ||
-        type === "boolean" ||
-        type === "number" ||
-        type === "string"
-    );
-}
-
-function toPrimitive(input) {
-    var val, valueOf, toString;
-    if (isPrimitive(input)) {
-        return input;
-    }
-    valueOf = input.valueOf;
-    if (typeof valueOf === "function") {
-        val = valueOf.call(input);
-        if (isPrimitive(val)) {
-            return val;
-        }
-    }
-    toString = input.toString;
-    if (typeof toString === "function") {
-        val = toString.call(input);
-        if (isPrimitive(val)) {
-            return val;
-        }
-    }
-    throw new TypeError();
-}
-var toObject = function (o) {
-    if (o == null) { // this matches both null and undefined
-        throw new TypeError("can't convert "+o+" to object");
-    }
-    return Object(o);
-};
-
-});
-
-ace.define("ace/lib/fixoldbrowsers",["require","exports","module","ace/lib/regexp","ace/lib/es5-shim"], function(require, exports, module) {
-"use strict";
-
-require("./regexp");
-require("./es5-shim");
-
-});
-
-ace.define("ace/lib/dom",["require","exports","module"], function(require, exports, module) {
-"use strict";
-
-var XHTML_NS = "http://www.w3.org/1999/xhtml";
-
-exports.getDocumentHead = function(doc) {
-    if (!doc)
-        doc = document;
-    return doc.head || doc.getElementsByTagName("head")[0] || doc.documentElement;
-};
-
-exports.createElement = function(tag, ns) {
-    return document.createElementNS ?
-           document.createElementNS(ns || XHTML_NS, tag) :
-           document.createElement(tag);
-};
-
-exports.hasCssClass = function(el, name) {
-    var classes = (el.className || "").split(/\s+/g);
-    return classes.indexOf(name) !== -1;
-};
-exports.addCssClass = function(el, name) {
-    if (!exports.hasCssClass(el, name)) {
-        el.className += " " + name;
-    }
-};
-exports.removeCssClass = function(el, name) {
-    var classes = el.className.split(/\s+/g);
-    while (true) {
-        var index = classes.indexOf(name);
-        if (index == -1) {
-            break;
-        }
-        classes.splice(index, 1);
-    }
-    el.className = classes.join(" ");
-};
-
-exports.toggleCssClass = function(el, name) {
-    var classes = el.className.split(/\s+/g), add = true;
-    while (true) {
-        var index = classes.indexOf(name);
-        if (index == -1) {
-            break;
-        }
-        add = false;
-        classes.splice(index, 1);
-    }
-    if (add)
-        classes.push(name);
-
-    el.className = classes.join(" ");
-    return add;
-};
-exports.setCssClass = function(node, className, include) {
-    if (include) {
-        exports.addCssClass(node, className);
-    } else {
-        exports.removeCssClass(node, className);
-    }
-};
-
-exports.hasCssString = function(id, doc) {
-    var index = 0, sheets;
-    doc = doc || document;
-
-    if (doc.createStyleSheet && (sheets = doc.styleSheets)) {
-        while (index < sheets.length)
-            if (sheets[index++].owningElement.id === id) return true;
-    } else if ((sheets = doc.getElementsByTagName("style"))) {
-        while (index < sheets.length)
-            if (sheets[index++].id === id) return true;
-    }
-
-    return false;
-};
-
-exports.importCssString = function importCssString(cssText, id, doc) {
-    doc = doc || document;
-    if (id && exports.hasCssString(id, doc))
-        return null;
-
-    var style;
-
-    if (id)
-        cssText += "\n/*# sourceURL=ace/css/" + id + " */";
-
-    if (doc.createStyleSheet) {
-        style = doc.createStyleSheet();
-        style.cssText = cssText;
-        if (id)
-            style.owningElement.id = id;
-    } else {
-        style = exports.createElement("style");
-        style.appendChild(doc.createTextNode(cssText));
-        if (id)
-            style.id = id;
-
-        exports.getDocumentHead(doc).appendChild(style);
-    }
-};
-
-exports.importCssStylsheet = function(uri, doc) {
-    if (doc.createStyleSheet) {
-        doc.createStyleSheet(uri);
-    } else {
-        var link = exports.createElement('link');
-        link.rel = 'stylesheet';
-        link.href = uri;
-
-        exports.getDocumentHead(doc).appendChild(link);
-    }
-};
-
-exports.getInnerWidth = function(element) {
-    return (
-        parseInt(exports.computedStyle(element, "paddingLeft"), 10) +
-        parseInt(exports.computedStyle(element, "paddingRight"), 10) +
-        element.clientWidth
-    );
-};
-
-exports.getInnerHeight = function(element) {
-    return (
-        parseInt(exports.computedStyle(element, "paddingTop"), 10) +
-        parseInt(exports.computedStyle(element, "paddingBottom"), 10) +
-        element.clientHeight
-    );
-};
-
-exports.scrollbarWidth = function(document) {
-    var inner = exports.createElement("ace_inner");
-    inner.style.width = "100%";
-    inner.style.minWidth = "0px";
-    inner.style.height = "200px";
-    inner.style.display = "block";
-
-    var outer = exports.createElement("ace_outer");
-    var style = outer.style;
-
-    style.position = "absolute";
-    style.left = "-10000px";
-    style.overflow = "hidden";
-    style.width = "200px";
-    style.minWidth = "0px";
-    style.height = "150px";
-    style.display = "block";
-
-    outer.appendChild(inner);
-
-    var body = document.documentElement;
-    body.appendChild(outer);
-
-    var noScrollbar = inner.offsetWidth;
-
-    style.overflow = "scroll";
-    var withScrollbar = inner.offsetWidth;
-
-    if (noScrollbar == withScrollbar) {
-        withScrollbar = outer.clientWidth;
-    }
-
-    body.removeChild(outer);
-
-    return noScrollbar-withScrollbar;
-};
-
-if (typeof document == "undefined") {
-    exports.importCssString = function() {};
-    return;
-}
-
-if (window.pageYOffset !== undefined) {
-    exports.getPageScrollTop = function() {
-        return window.pageYOffset;
-    };
-
-    exports.getPageScrollLeft = function() {
-        return window.pageXOffset;
-    };
-}
-else {
-    exports.getPageScrollTop = function() {
-        return document.body.scrollTop;
-    };
-
-    exports.getPageScrollLeft = function() {
-        return document.body.scrollLeft;
-    };
-}
-
-if (window.getComputedStyle)
-    exports.computedStyle = function(element, style) {
-        if (style)
-            return (window.getComputedStyle(element, "") || {})[style] || "";
-        return window.getComputedStyle(element, "") || {};
-    };
-else
-    exports.computedStyle = function(element, style) {
-        if (style)
-            return element.currentStyle[style];
-        return element.currentStyle;
-    };
-exports.setInnerHtml = function(el, innerHtml) {
-    var element = el.cloneNode(false);//document.createElement("div");
-    element.innerHTML = innerHtml;
-    el.parentNode.replaceChild(element, el);
-    return element;
-};
-
-if ("textContent" in document.documentElement) {
-    exports.setInnerText = function(el, innerText) {
-        el.textContent = innerText;
-    };
-
-    exports.getInnerText = function(el) {
-        return el.textContent;
-    };
-}
-else {
-    exports.setInnerText = function(el, innerText) {
-        el.innerText = innerText;
-    };
-
-    exports.getInnerText = function(el) {
-        return el.innerText;
-    };
-}
-
-exports.getParentWindow = function(document) {
-    return document.defaultView || document.parentWindow;
-};
-
-});
-
-ace.define("ace/lib/oop",["require","exports","module"], function(require, exports, module) {
-"use strict";
-
-exports.inherits = function(ctor, superCtor) {
-    ctor.super_ = superCtor;
-    ctor.prototype = Object.create(superCtor.prototype, {
-        constructor: {
-            value: ctor,
-            enumerable: false,
-            writable: true,
-            configurable: true
-        }
-    });
-};
-
-exports.mixin = function(obj, mixin) {
-    for (var key in mixin) {
-        obj[key] = mixin[key];
-    }
-    return obj;
-};
-
-exports.implement = function(proto, mixin) {
-    exports.mixin(proto, mixin);
-};
-
-});
-
-ace.define("ace/lib/keys",["require","exports","module","ace/lib/fixoldbrowsers","ace/lib/oop"], function(require, exports, module) {
-"use strict";
-
-require("./fixoldbrowsers");
-
-var oop = require("./oop");
-var Keys = (function() {
-    var ret = {
-        MODIFIER_KEYS: {
-            16: 'Shift', 17: 'Ctrl', 18: 'Alt', 224: 'Meta'
-        },
-
-        KEY_MODS: {
-            "ctrl": 1, "alt": 2, "option" : 2, "shift": 4,
-            "super": 8, "meta": 8, "command": 8, "cmd": 8
-        },
-
-        FUNCTION_KEYS : {
-            8  : "Backspace",
-            9  : "Tab",
-            13 : "Return",
-            19 : "Pause",
-            27 : "Esc",
-            32 : "Space",
-            33 : "PageUp",
-            34 : "PageDown",
-            35 : "End",
-            36 : "Home",
-            37 : "Left",
-            38 : "Up",
-            39 : "Right",
-            40 : "Down",
-            44 : "Print",
-            45 : "Insert",
-            46 : "Delete",
-            96 : "Numpad0",
-            97 : "Numpad1",
-            98 : "Numpad2",
-            99 : "Numpad3",
-            100: "Numpad4",
-            101: "Numpad5",
-            102: "Numpad6",
-            103: "Numpad7",
-            104: "Numpad8",
-            105: "Numpad9",
-            '-13': "NumpadEnter",
-            112: "F1",
-            113: "F2",
-            114: "F3",
-            115: "F4",
-            116: "F5",
-            117: "F6",
-            118: "F7",
-            119: "F8",
-            120: "F9",
-            121: "F10",
-            122: "F11",
-            123: "F12",
-            144: "Numlock",
-            145: "Scrolllock"
-        },
-
-        PRINTABLE_KEYS: {
-           32: ' ',  48: '0',  49: '1',  50: '2',  51: '3',  52: '4', 53:  '5',
-           54: '6',  55: '7',  56: '8',  57: '9',  59: ';',  61: '=', 65:  'a',
-           66: 'b',  67: 'c',  68: 'd',  69: 'e',  70: 'f',  71: 'g', 72:  'h',
-           73: 'i',  74: 'j',  75: 'k',  76: 'l',  77: 'm',  78: 'n', 79:  'o',
-           80: 'p',  81: 'q',  82: 'r',  83: 's',  84: 't',  85: 'u', 86:  'v',
-           87: 'w',  88: 'x',  89: 'y',  90: 'z', 107: '+', 109: '-', 110: '.',
-          186: ';', 187: '=', 188: ',', 189: '-', 190: '.', 191: '/', 192: '`',
-          219: '[', 220: '\\',221: ']', 222: "'", 111: '/', 106: '*'
-        }
-    };
-    var name, i;
-    for (i in ret.FUNCTION_KEYS) {
-        name = ret.FUNCTION_KEYS[i].toLowerCase();
-        ret[name] = parseInt(i, 10);
-    }
-    for (i in ret.PRINTABLE_KEYS) {
-        name = ret.PRINTABLE_KEYS[i].toLowerCase();
-        ret[name] = parseInt(i, 10);
-    }
-    oop.mixin(ret, ret.MODIFIER_KEYS);
-    oop.mixin(ret, ret.PRINTABLE_KEYS);
-    oop.mixin(ret, ret.FUNCTION_KEYS);
-    ret.enter = ret["return"];
-    ret.escape = ret.esc;
-    ret.del = ret["delete"];
-    ret[173] = '-';
-
-    (function() {
-        var mods = ["cmd", "ctrl", "alt", "shift"];
-        for (var i = Math.pow(2, mods.length); i--;) {
-            ret.KEY_MODS[i] = mods.filter(function(x) {
-                return i & ret.KEY_MODS[x];
-            }).join("-") + "-";
-        }
-    })();
-
-    ret.KEY_MODS[0] = "";
-    ret.KEY_MODS[-1] = "input-";
-
-    return ret;
-})();
-oop.mixin(exports, Keys);
-
-exports.keyCodeToString = function(keyCode) {
-    var keyString = Keys[keyCode];
-    if (typeof keyString != "string")
-        keyString = String.fromCharCode(keyCode);
-    return keyString.toLowerCase();
-};
-
-});
-
-ace.define("ace/lib/useragent",["require","exports","module"], function(require, exports, module) {
-"use strict";
-exports.OS = {
-    LINUX: "LINUX",
-    MAC: "MAC",
-    WINDOWS: "WINDOWS"
-};
-exports.getOS = function() {
-    if (exports.isMac) {
-        return exports.OS.MAC;
-    } else if (exports.isLinux) {
-        return exports.OS.LINUX;
-    } else {
-        return exports.OS.WINDOWS;
-    }
-};
-if (typeof navigator != "object")
-    return;
-
-var os = (navigator.platform.match(/mac|win|linux/i) || ["other"])[0].toLowerCase();
-var ua = navigator.userAgent;
-exports.isWin = (os == "win");
-exports.isMac = (os == "mac");
-exports.isLinux = (os == "linux");
-exports.isIE =
-    (navigator.appName == "Microsoft Internet Explorer" || navigator.appName.indexOf("MSAppHost") >= 0)
-    ? parseFloat((ua.match(/(?:MSIE |Trident\/[0-9]+[\.0-9]+;.*rv:)([0-9]+[\.0-9]+)/)||[])[1])
-    : parseFloat((ua.match(/(?:Trident\/[0-9]+[\.0-9]+;.*rv:)([0-9]+[\.0-9]+)/)||[])[1]); // for ie
-
-exports.isOldIE = exports.isIE && exports.isIE < 9;
-exports.isGecko = exports.isMozilla = (window.Controllers || window.controllers) && window.navigator.product === "Gecko";
-exports.isOldGecko = exports.isGecko && parseInt((ua.match(/rv\:(\d+)/)||[])[1], 10) < 4;
-exports.isOpera = window.opera && Object.prototype.toString.call(window.opera) == "[object Opera]";
-exports.isWebKit = parseFloat(ua.split("WebKit/")[1]) || undefined;
-
-exports.isChrome = parseFloat(ua.split(" Chrome/")[1]) || undefined;
-
-exports.isAIR = ua.indexOf("AdobeAIR") >= 0;
-
-exports.isIPad = ua.indexOf("iPad") >= 0;
-
-exports.isTouchPad = ua.indexOf("TouchPad") >= 0;
-
-exports.isChromeOS = ua.indexOf(" CrOS ") >= 0;
-
-});
-
-ace.define("ace/lib/event",["require","exports","module","ace/lib/keys","ace/lib/useragent"], function(require, exports, module) {
-"use strict";
-
-var keys = require("./keys");
-var useragent = require("./useragent");
-
-var pressedKeys = null;
-var ts = 0;
-
-exports.addListener = function(elem, type, callback) {
-    if (elem.addEventListener) {
-        return elem.addEventListener(type, callback, false);
-    }
-    if (elem.attachEvent) {
-        var wrapper = function() {
-            callback.call(elem, window.event);
-        };
-        callback._wrapper = wrapper;
-        elem.attachEvent("on" + type, wrapper);
-    }
-};
-
-exports.removeListener = function(elem, type, callback) {
-    if (elem.removeEventListener) {
-        return elem.removeEventListener(type, callback, false);
-    }
-    if (elem.detachEvent) {
-        elem.detachEvent("on" + type, callback._wrapper || callback);
-    }
-};
-exports.stopEvent = function(e) {
-    exports.stopPropagation(e);
-    exports.preventDefault(e);
-    return false;
-};
-
-exports.stopPropagation = function(e) {
-    if (e.stopPropagation)
-        e.stopPropagation();
-    else
-        e.cancelBubble = true;
-};
-
-exports.preventDefault = function(e) {
-    if (e.preventDefault)
-        e.preventDefault();
-    else
-        e.returnValue = false;
-};
-exports.getButton = function(e) {
-    if (e.type == "dblclick")
-        return 0;
-    if (e.type == "contextmenu" || (useragent.isMac && (e.ctrlKey && !e.altKey && !e.shiftKey)))
-        return 2;
-    if (e.preventDefault) {
-        return e.button;
-    }
-    else {
-        return {1:0, 2:2, 4:1}[e.button];
-    }
-};
-
-exports.capture = function(el, eventHandler, releaseCaptureHandler) {
-    function onMouseUp(e) {
-        eventHandler && eventHandler(e);
-        releaseCaptureHandler && releaseCaptureHandler(e);
-
-        exports.removeListener(document, "mousemove", eventHandler, true);
-        exports.removeListener(document, "mouseup", onMouseUp, true);
-        exports.removeListener(document, "dragstart", onMouseUp, true);
-    }
-
-    exports.addListener(document, "mousemove", eventHandler, true);
-    exports.addListener(document, "mouseup", onMouseUp, true);
-    exports.addListener(document, "dragstart", onMouseUp, true);
-
-    return onMouseUp;
-};
-
-exports.addTouchMoveListener = function (el, callback) {
-    if ("ontouchmove" in el) {
-        var startx, starty;
-        exports.addListener(el, "touchstart", function (e) {
-            var touchObj = e.changedTouches[0];
-            startx = touchObj.clientX;
-            starty = touchObj.clientY;
-        });
-        exports.addListener(el, "touchmove", function (e) {
-            var factor = 1,
-            touchObj = e.changedTouches[0];
-
-            e.wheelX = -(touchObj.clientX - startx) / factor;
-            e.wheelY = -(touchObj.clientY - starty) / factor;
-
-            startx = touchObj.clientX;
-            starty = touchObj.clientY;
-
-            callback(e);
-        });
-    }
-};
-
-exports.addMouseWheelListener = function(el, callback) {
-    if ("onmousewheel" in el) {
-        exports.addListener(el, "mousewheel", function(e) {
-            var factor = 8;
-            if (e.wheelDeltaX !== undefined) {
-                e.wheelX = -e.wheelDeltaX / factor;
-                e.wheelY = -e.wheelDeltaY / factor;
-            } else {
-                e.wheelX = 0;
-                e.wheelY = -e.wheelDelta / factor;
-            }
-            callback(e);
-        });
-    } else if ("onwheel" in el) {
-        exports.addListener(el, "wheel",  function(e) {
-            var factor = 0.35;
-            switch (e.deltaMode) {
-                case e.DOM_DELTA_PIXEL:
-                    e.wheelX = e.deltaX * factor || 0;
-                    e.wheelY = e.deltaY * factor || 0;
-                    break;
-                case e.DOM_DELTA_LINE:
-                case e.DOM_DELTA_PAGE:
-                    e.wheelX = (e.deltaX || 0) * 5;
-                    e.wheelY = (e.deltaY || 0) * 5;
-                    break;
-            }
-
-            callback(e);
-        });
-    } else {
-        exports.addListener(el, "DOMMouseScroll", function(e) {
-            if (e.axis && e.axis == e.HORIZONTAL_AXIS) {
-                e.wheelX = (e.detail || 0) * 5;
-                e.wheelY = 0;
-            } else {
-                e.wheelX = 0;
-                e.wheelY = (e.detail || 0) * 5;
-            }
-            callback(e);
-        });
-    }
-};
-
-exports.addMultiMouseDownListener = function(elements, timeouts, eventHandler, callbackName) {
-    var clicks = 0;
-    var startX, startY, timer;
-    var eventNames = {
-        2: "dblclick",
-        3: "tripleclick",
-        4: "quadclick"
-    };
-
-    function onMousedown(e) {
-        if (exports.getButton(e) !== 0) {
-            clicks = 0;
-        } else if (e.detail > 1) {
-            clicks++;
-            if (clicks > 4)
-                clicks = 1;
-        } else {
-            clicks = 1;
-        }
-        if (useragent.isIE) {
-            var isNewClick = Math.abs(e.clientX - startX) > 5 || Math.abs(e.clientY - startY) > 5;
-            if (!timer || isNewClick)
-                clicks = 1;
-            if (timer)
-                clearTimeout(timer);
-            timer = setTimeout(function() {timer = null}, timeouts[clicks - 1] || 600);
-
-            if (clicks == 1) {
-                startX = e.clientX;
-                startY = e.clientY;
-            }
-        }
-
-        e._clicks = clicks;
-
-        eventHandler[callbackName]("mousedown", e);
-
-        if (clicks > 4)
-            clicks = 0;
-        else if (clicks > 1)
-            return eventHandler[callbackName](eventNames[clicks], e);
-    }
-    function onDblclick(e) {
-        clicks = 2;
-        if (timer)
-            clearTimeout(timer);
-        timer = setTimeout(function() {timer = null}, timeouts[clicks - 1] || 600);
-        eventHandler[callbackName]("mousedown", e);
-        eventHandler[callbackName](eventNames[clicks], e);
-    }
-    if (!Array.isArray(elements))
-        elements = [elements];
-    elements.forEach(function(el) {
-        exports.addListener(el, "mousedown", onMousedown);
-        if (useragent.isOldIE)
-            exports.addListener(el, "dblclick", onDblclick);
-    });
-};
-
-var getModifierHash = useragent.isMac && useragent.isOpera && !("KeyboardEvent" in window)
-    ? function(e) {
-        return 0 | (e.metaKey ? 1 : 0) | (e.altKey ? 2 : 0) | (e.shiftKey ? 4 : 0) | (e.ctrlKey ? 8 : 0);
-    }
-    : function(e) {
-        return 0 | (e.ctrlKey ? 1 : 0) | (e.altKey ? 2 : 0) | (e.shiftKey ? 4 : 0) | (e.metaKey ? 8 : 0);
-    };
-
-exports.getModifierString = function(e) {
-    return keys.KEY_MODS[getModifierHash(e)];
-};
-
-function normalizeCommandKeys(callback, e, keyCode) {
-    var hashId = getModifierHash(e);
-
-    if (!useragent.isMac && pressedKeys) {
-        if (pressedKeys.OSKey)
-            hashId |= 8;
-        if (pressedKeys.altGr) {
-            if ((3 & hashId) != 3)
-                pressedKeys.altGr = 0;
-            else
-                return;
-        }
-        if (keyCode === 18 || keyCode === 17) {
-            var location = "location" in e ? e.location : e.keyLocation;
-            if (keyCode === 17 && location === 1) {
-                if (pressedKeys[keyCode] == 1)
-                    ts = e.timeStamp;
-            } else if (keyCode === 18 && hashId === 3 && location === 2) {
-                var dt = e.timeStamp - ts;
-                if (dt < 50)
-                    pressedKeys.altGr = true;
-            }
-        }
-    }
-
-    if (keyCode in keys.MODIFIER_KEYS) {
-        keyCode = -1;
-    }
-    if (hashId & 8 && (keyCode >= 91 && keyCode <= 93)) {
-        keyCode = -1;
-    }
-
-    if (!hashId && keyCode === 13) {
-        var location = "location" in e ? e.location : e.keyLocation;
-        if (location === 3) {
-            callback(e, hashId, -keyCode);
-            if (e.defaultPrevented)
-                return;
-        }
-    }
-
-    if (useragent.isChromeOS && hashId & 8) {
-        callback(e, hashId, keyCode);
-        if (e.defaultPrevented)
-            return;
-        else
-            hashId &= ~8;
-    }
-    if (!hashId && !(keyCode in keys.FUNCTION_KEYS) && !(keyCode in keys.PRINTABLE_KEYS)) {
-        return false;
-    }
-
-    return callback(e, hashId, keyCode);
-}
-
-
-exports.addCommandKeyListener = function(el, callback) {
-    var addListener = exports.addListener;
-    if (useragent.isOldGecko || (useragent.isOpera && !("KeyboardEvent" in window))) {
-        var lastKeyDownKeyCode = null;
-        addListener(el, "keydown", function(e) {
-            lastKeyDownKeyCode = e.keyCode;
-        });
-        addListener(el, "keypress", function(e) {
-            return normalizeCommandKeys(callback, e, lastKeyDownKeyCode);
-        });
-    } else {
-        var lastDefaultPrevented = null;
-
-        addListener(el, "keydown", function(e) {
-            var keyCode = e.keyCode;
-            pressedKeys[keyCode] = (pressedKeys[keyCode] || 0) + 1;
-            if (keyCode == 91 || keyCode == 92) {
-                pressedKeys.OSKey = true;
-            } else if (pressedKeys.OSKey) {
-                if (e.timeStamp - pressedKeys.lastT > 200 && pressedKeys.count == 1)
-                    resetPressedKeys();
-            }
-            if (pressedKeys[keyCode] == 1)
-                pressedKeys.count++;
-            pressedKeys.lastT = e.timeStamp;
-            var result = normalizeCommandKeys(callback, e, keyCode);
-            lastDefaultPrevented = e.defaultPrevented;
-            return result;
-        });
-
-        addListener(el, "keypress", function(e) {
-            if (lastDefaultPrevented && (e.ctrlKey || e.altKey || e.shiftKey || e.metaKey)) {
-                exports.stopEvent(e);
-                lastDefaultPrevented = null;
-            }
-        });
-
-        addListener(el, "keyup", function(e) {
-            var keyCode = e.keyCode;
-            if (!pressedKeys[keyCode]) {
-                resetPressedKeys();
-            } else {
-                pressedKeys.count = Math.max(pressedKeys.count - 1, 0);
-            }
-            if (keyCode == 91 || keyCode == 92) {
-                pressedKeys.OSKey = false;
-            }
-            pressedKeys[keyCode] = null;
-        });
-
-        if (!pressedKeys) {
-            resetPressedKeys();
-            addListener(window, "focus", resetPressedKeys);
-        }
-    }
-};
-function resetPressedKeys() {
-    pressedKeys = Object.create(null);
-    pressedKeys.count = 0;
-    pressedKeys.lastT = 0;
-}
-
-if (typeof window == "object" && window.postMessage && !useragent.isOldIE) {
-    var postMessageId = 1;
-    exports.nextTick = function(callback, win) {
-        win = win || window;
-        var messageName = "zero-timeout-message-" + postMessageId;
-        exports.addListener(win, "message", function listener(e) {
-            if (e.data == messageName) {
-                exports.stopPropagation(e);
-                exports.removeListener(win, "message", listener);
-                callback();
-            }
-        });
-        win.postMessage(messageName, "*");
-    };
-}
-
-
-exports.nextFrame = typeof window == "object" && (window.requestAnimationFrame
-    || window.mozRequestAnimationFrame
-    || window.webkitRequestAnimationFrame
-    || window.msRequestAnimationFrame
-    || window.oRequestAnimationFrame);
-
-if (exports.nextFrame)
-    exports.nextFrame = exports.nextFrame.bind(window);
-else
-    exports.nextFrame = function(callback) {
-        setTimeout(callback, 17);
-    };
-});
-
-ace.define("ace/lib/lang",["require","exports","module"], function(require, exports, module) {
-"use strict";
-
-exports.last = function(a) {
-    return a[a.length - 1];
-};
-
-exports.stringReverse = function(string) {
-    return string.split("").reverse().join("");
-};
-
-exports.stringRepeat = function (string, count) {
-    var result = '';
-    while (count > 0) {
-        if (count & 1)
-            result += string;
-
-        if (count >>= 1)
-            string += string;
-    }
-    return result;
-};
-
-var trimBeginRegexp = /^\s\s*/;
-var trimEndRegexp = /\s\s*$/;
-
-exports.stringTrimLeft = function (string) {
-    return string.replace(trimBeginRegexp, '');
-};
-
-exports.stringTrimRight = function (string) {
-    return string.replace(trimEndRegexp, '');
-};
-
-exports.copyObject = function(obj) {
-    var copy = {};
-    for (var key in obj) {
-        copy[key] = obj[key];
-    }
-    return copy;
-};
-
-exports.copyArray = function(array){
-    var copy = [];
-    for (var i=0, l=array.length; i<l; i++) {
-        if (array[i] && typeof array[i] == "object")
-            copy[i] = this.copyObject( array[i] );
-        else
-            copy[i] = array[i];
-    }
-    return copy;
-};
-
-exports.deepCopy = function deepCopy(obj) {
-    if (typeof obj !== "object" || !obj)
-        return obj;
-    var copy;
-    if (Array.isArray(obj)) {
-        copy = [];
-        for (var key = 0; key < obj.length; key++) {
-            copy[key] = deepCopy(obj[key]);
-        }
-        return copy;
-    }
-    var cons = obj.constructor;
-    if (cons === RegExp)
-        return obj;
-
-    copy = cons();
-    for (var key in obj) {
-        copy[key] = deepCopy(obj[key]);
-    }
-    return copy;
-};
-
-exports.arrayToMap = function(arr) {
-    var map = {};
-    for (var i=0; i<arr.length; i++) {
-        map[arr[i]] = 1;
-    }
-    return map;
-
-};
-
-exports.createMap = function(props) {
-    var map = Object.create(null);
-    for (var i in props) {
-        map[i] = props[i];
-    }
-    return map;
-};
-exports.arrayRemove = function(array, value) {
-  for (var i = 0; i <= array.length; i++) {
-    if (value === array[i]) {
-      array.splice(i, 1);
-    }
-  }
-};
-
-exports.escapeRegExp = function(str) {
-    return str.replace(/([.*+?^${}()|[\]\/\\])/g, '\\$1');
-};
-
-exports.escapeHTML = function(str) {
-    return str.replace(/&/g, "&#38;").replace(/"/g, "&#34;").replace(/'/g, "&#39;").replace(/</g, "&#60;");
-};
-
-exports.getMatchOffsets = function(string, regExp) {
-    var matches = [];
-
-    string.replace(regExp, function(str) {
-        matches.push({
-            offset: arguments[arguments.length-2],
-            length: str.length
-        });
-    });
-
-    return matches;
-};
-exports.deferredCall = function(fcn) {
-    var timer = null;
-    var callback = function() {
-        timer = null;
-        fcn();
-    };
-
-    var deferred = function(timeout) {
-        deferred.cancel();
-        timer = setTimeout(callback, timeout || 0);
-        return deferred;
-    };
-
-    deferred.schedule = deferred;
-
-    deferred.call = function() {
-        this.cancel();
-        fcn();
-        return deferred;
-    };
-
-    deferred.cancel = function() {
-        clearTimeout(timer);
-        timer = null;
-        return deferred;
-    };
-
-    deferred.isPending = function() {
-        return timer;
-    };
-
-    return deferred;
-};
-
-
-exports.delayedCall = function(fcn, defaultTimeout) {
-    var timer = null;
-    var callback = function() {
-        timer = null;
-        fcn();
-    };
-
-    var _self = function(timeout) {
-        if (timer == null)
-            timer = setTimeout(callback, timeout || defaultTimeout);
-    };
-
-    _self.delay = function(timeout) {
-        timer && clearTimeout(timer);
-        timer = setTimeout(callback, timeout || defaultTimeout);
-    };
-    _self.schedule = _self;
-
-    _self.call = function() {
-        this.cancel();
-        fcn();
-    };
-
-    _self.cancel = function() {
-        timer && clearTimeout(timer);
-        timer = null;
-    };
-
-    _self.isPending = function() {
-        return timer;
-    };
-
-    return _self;
-};
-});
-
-ace.define("ace/keyboard/textinput",["require","exports","module","ace/lib/event","ace/lib/useragent","ace/lib/dom","ace/lib/lang"], function(require, exports, module) {
-"use strict";
-
-var event = require("../lib/event");
-var useragent = require("../lib/useragent");
-var dom = require("../lib/dom");
-var lang = require("../lib/lang");
-var BROKEN_SETDATA = useragent.isChrome < 18;
-var USE_IE_MIME_TYPE =  useragent.isIE;
-
-var TextInput = function(parentNode, host) {
-    var text = dom.createElement("textarea");
-    text.className = "ace_text-input";
-
-    if (useragent.isTouchPad)
-        text.setAttribute("x-palm-disable-auto-cap", true);
-
-    text.setAttribute("wrap", "off");
-    text.setAttribute("autocorrect", "off");
-    text.setAttribute("autocapitalize", "off");
-    text.setAttribute("spellcheck", false);
-
-    text.style.opacity = "0";
-    if (useragent.isOldIE) text.style.top = "-1000px";
-    parentNode.insertBefore(text, parentNode.firstChild);
-
-    var PLACEHOLDER = "\x01\x01";
-
-    var copied = false;
-    var pasted = false;
-    var inComposition = false;
-    var tempStyle = '';
-    var isSelectionEmpty = true;
-    try { var isFocused = document.activeElement === text; } catch(e) {}
-
-    event.addListener(text, "blur", function(e) {
-        host.onBlur(e);
-        isFocused = false;
-    });
-    event.addListener(text, "focus", function(e) {
-        isFocused = true;
-        host.onFocus(e);
-        resetSelection();
-    });
-    this.focus = function() {
-        if (tempStyle) return text.focus();
-        var top = text.style.top;
-        text.style.position = "fixed";
-        text.style.top = "0px";
-        text.focus();
-        setTimeout(function() {
-            text.style.position = "";
-            if (text.style.top == "0px")
-                text.style.top = top;
-        }, 0);
-    };
-    this.blur = function() {
-        text.blur();
-    };
-    this.isFocused = function() {
-        return isFocused;
-    };
-    var syncSelection = lang.delayedCall(function() {
-        isFocused && resetSelection(isSelectionEmpty);
-    });
-    var syncValue = lang.delayedCall(function() {
-         if (!inComposition) {
-            text.value = PLACEHOLDER;
-            isFocused && resetSelection();
-         }
-    });
-
-    function resetSelection(isEmpty) {
-        if (inComposition)
-            return;
-        inComposition = true;
-
-        if (inputHandler) {
-            selectionStart = 0;
-            selectionEnd = isEmpty ? 0 : text.value.length - 1;
-        } else {
-            var selectionStart = isEmpty ? 2 : 1;
-            var selectionEnd = 2;
-        }
-        try {
-            text.setSelectionRange(selectionStart, selectionEnd);
-        } catch(e){}
-
-        inComposition = false;
-    }
-
-    function resetValue() {
-        if (inComposition)
-            return;
-        text.value = PLACEHOLDER;
-        if (useragent.isWebKit)
-            syncValue.schedule();
-    }
-
-    useragent.isWebKit || host.addEventListener('changeSelection', function() {
-        if (host.selection.isEmpty() != isSelectionEmpty) {
-            isSelectionEmpty = !isSelectionEmpty;
-            syncSelection.schedule();
-        }
-    });
-
-    resetValue();
-    if (isFocused)
-        host.onFocus();
-
-
-    var isAllSelected = function(text) {
-        return text.selectionStart === 0 && text.selectionEnd === text.value.length;
-    };
-    if (!text.setSelectionRange && text.createTextRange) {
-        text.setSelectionRange = function(selectionStart, selectionEnd) {
-            var range = this.createTextRange();
-            range.collapse(true);
-            range.moveStart('character', selectionStart);
-            range.moveEnd('character', selectionEnd);
-            range.select();
-        };
-        isAllSelected = function(text) {
-            try {
-                var range = text.ownerDocument.selection.createRange();
-            }catch(e) {}
-            if (!range || range.parentElement() != text) return false;
-                return range.text == text.value;
-        }
-    }
-    if (useragent.isOldIE) {
-        var inPropertyChange = false;
-        var onPropertyChange = function(e){
-            if (inPropertyChange)
-                return;
-            var data = text.value;
-            if (inComposition || !data || data == PLACEHOLDER)
-                return;
-            if (e && data == PLACEHOLDER[0])
-                return syncProperty.schedule();
-
-            sendText(data);
-            inPropertyChange = true;
-            resetValue();
-            inPropertyChange = false;
-        };
-        var syncProperty = lang.delayedCall(onPropertyChange);
-        event.addListener(text, "propertychange", onPropertyChange);
-
-        var keytable = { 13:1, 27:1 };
-        event.addListener(text, "keyup", function (e) {
-            if (inComposition && (!text.value || keytable[e.keyCode]))
-                setTimeout(onCompositionEnd, 0);
-            if ((text.value.charCodeAt(0)||0) < 129) {
-                return syncProperty.call();
-            }
-            inComposition ? onCompositionUpdate() : onCompositionStart();
-        });
-        event.addListener(text, "keydown", function (e) {
-            syncProperty.schedule(50);
-        });
-    }
-
-    var onSelect = function(e) {
-        if (copied) {
-            copied = false;
-        } else if (isAllSelected(text)) {
-            host.selectAll();
-            resetSelection();
-        } else if (inputHandler) {
-            resetSelection(host.selection.isEmpty());
-        }
-    };
-
-    var inputHandler = null;
-    this.setInputHandler = function(cb) {inputHandler = cb};
-    this.getInputHandler = function() {return inputHandler};
-    var afterContextMenu = false;
-
-    var sendText = function(data) {
-        if (inputHandler) {
-            data = inputHandler(data);
-            inputHandler = null;
-        }
-        if (pasted) {
-            resetSelection();
-            if (data)
-                host.onPaste(data);
-            pasted = false;
-        } else if (data == PLACEHOLDER.charAt(0)) {
-            if (afterContextMenu)
-                host.execCommand("del", {source: "ace"});
-            else // some versions of android do not fire keydown when pressing backspace
-                host.execCommand("backspace", {source: "ace"});
-        } else {
-            if (data.substring(0, 2) == PLACEHOLDER)
-                data = data.substr(2);
-            else if (data.charAt(0) == PLACEHOLDER.charAt(0))
-                data = data.substr(1);
-            else if (data.charAt(data.length - 1) == PLACEHOLDER.charAt(0))
-                data = data.slice(0, -1);
-            if (data.charAt(data.length - 1) == PLACEHOLDER.charAt(0))
-                data = data.slice(0, -1);
-
-            if (data)
-                host.onTextInput(data);
-        }
-        if (afterContextMenu)
-            afterContextMenu = false;
-    };
-    var onInput = function(e) {
-        if (inComposition)
-            return;
-        var data = text.value;
-        sendText(data);
-        resetValue();
-    };
-
-    var handleClipboardData = function(e, data) {
-        var clipboardData = e.clipboardData || window.clipboardData;
-        if (!clipboardData || BROKEN_SETDATA)
-            return;
-        var mime = USE_IE_MIME_TYPE ? "Text" : "text/plain";
-        if (data) {
-            return clipboardData.setData(mime, data) !== false;
-        } else {
-            return clipboardData.getData(mime);
-        }
-    };
-
-    var doCopy = function(e, isCut) {
-        var data = host.getCopyText();
-        if (!data)
-            return event.preventDefault(e);
-
-        if (handleClipboardData(e, data)) {
-            isCut ? host.onCut() : host.onCopy();
-            event.preventDefault(e);
-        } else {
-            copied = true;
-            text.value = data;
-            text.select();
-            setTimeout(function(){
-                copied = false;
-                resetValue();
-                resetSelection();
-                isCut ? host.onCut() : host.onCopy();
-            });
-        }
-    };
-
-    var onCut = function(e) {
-        doCopy(e, true);
-    };
-
-    var onCopy = function(e) {
-        doCopy(e, false);
-    };
-
-    var onPaste = function(e) {
-        var data = handleClipboardData(e);
-        if (typeof data == "string") {
-            if (data)
-                host.onPaste(data, e);
-            if (useragent.isIE)
-                setTimeout(resetSelection);
-            event.preventDefault(e);
-        }
-        else {
-            text.value = "";
-            pasted = true;
-        }
-    };
-
-    event.addCommandKeyListener(text, host.onCommandKey.bind(host));
-
-    event.addListener(text, "select", onSelect);
-
-    event.addListener(text, "input", onInput);
-
-    event.addListener(text, "cut", onCut);
-    event.addListener(text, "copy", onCopy);
-    event.addListener(text, "paste", onPaste);
-    if (!('oncut' in text) || !('oncopy' in text) || !('onpaste' in text)){
-        event.addListener(parentNode, "keydown", function(e) {
-            if ((useragent.isMac && !e.metaKey) || !e.ctrlKey)
-                return;
-
-            switch (e.keyCode) {
-                case 67:
-                    onCopy(e);
-                    break;
-                case 86:
-                    onPaste(e);
-                    break;
-                case 88:
-                    onCut(e);
-                    break;
-            }
-        });
-    }
-    var onCompositionStart = function(e) {
-        if (inComposition || !host.onCompositionStart || host.$readOnly)
-            return;
-        inComposition = {};
-        host.onCompositionStart();
-        setTimeout(onCompositionUpdate, 0);
-        host.on("mousedown", onCompositionEnd);
-        if (!host.selection.isEmpty()) {
-            host.insert("");
-            host.session.markUndoGroup();
-            host.selection.clearSelection();
-        }
-        host.session.markUndoGroup();
-    };
-
-    var onCompositionUpdate = function() {
-        if (!inComposition || !host.onCompositionUpdate || host.$readOnly)
-            return;
-        var val = text.value.replace(/\x01/g, "");
-        if (inComposition.lastValue === val) return;
-
-        host.onCompositionUpdate(val);
-        if (inComposition.lastValue)
-            host.undo();
-        inComposition.lastValue = val;
-        if (inComposition.lastValue) {
-            var r = host.selection.getRange();
-            host.insert(inComposition.lastValue);
-            host.session.markUndoGroup();
-            inComposition.range = host.selection.getRange();
-            host.selection.setRange(r);
-            host.selection.clearSelection();
-        }
-    };
-
-    var onCompositionEnd = function(e) {
-        if (!host.onCompositionEnd || host.$readOnly) return;
-        var c = inComposition;
-        inComposition = false;
-        var timer = setTimeout(function() {
-            timer = null;
-            var str = text.value.replace(/\x01/g, "");
-            if (inComposition)
-                return;
-            else if (str == c.lastValue)
-                resetValue();
-            else if (!c.lastValue && str) {
-                resetValue();
-                sendText(str);
-            }
-        });
-        inputHandler = function compositionInputHandler(str) {
-            if (timer)
-                clearTimeout(timer);
-            str = str.replace(/\x01/g, "");
-            if (str == c.lastValue)
-                return "";
-            if (c.lastValue && timer)
-                host.undo();
-            return str;
-        };
-        host.onCompositionEnd();
-        host.removeListener("mousedown", onCompositionEnd);
-        if (e.type == "compositionend" && c.range) {
-            host.selection.setRange(c.range);
-        }
-    };
-
-
-
-    var syncComposition = lang.delayedCall(onCompositionUpdate, 50);
-
-    event.addListener(text, "compositionstart", onCompositionStart);
-    if (useragent.isGecko) {
-        event.addListener(text, "text", function(){syncComposition.schedule()});
-    } else {
-        event.addListener(text, "keyup", function(){syncComposition.schedule()});
-        event.addListener(text, "keydown", function(){syncComposition.schedule()});
-    }
-    event.addListener(text, "compositionend", onCompositionEnd);
-
-    this.getElement = function() {
-        return text;
-    };
-
-    this.setReadOnly = function(readOnly) {
-       text.readOnly = readOnly;
-    };
-
-    this.onContextMenu = function(e) {
-        afterContextMenu = true;
-        resetSelection(host.selection.isEmpty());
-        host._emit("nativecontextmenu", {target: host, domEvent: e});
-        this.moveToMouse(e, true);
-    };
-
-    this.moveToMouse = function(e, bringToFront) {
-        if (!bringToFront && useragent.isOldIE)
-            return;
-        if (!tempStyle)
-            tempStyle = text.style.cssText;
-        text.style.cssText = (bringToFront ? "z-index:100000;" : "")
-            + "height:" + text.style.height + ";"
-            + (useragent.isIE ? "opacity:0.1;" : "");
-
-        var rect = host.container.getBoundingClientRect();
-        var style = dom.computedStyle(host.container);
-        var top = rect.top + (parseInt(style.borderTopWidth) || 0);
-        var left = rect.left + (parseInt(rect.borderLeftWidth) || 0);
-        var maxTop = rect.bottom - top - text.clientHeight -2;
-        var move = function(e) {
-            text.style.left = e.clientX - left - 2 + "px";
-            text.style.top = Math.min(e.clientY - top - 2, maxTop) + "px";
-        };
-        move(e);
-
-        if (e.type != "mousedown")
-            return;
-
-        if (host.renderer.$keepTextAreaAtCursor)
-            host.renderer.$keepTextAreaAtCursor = null;
-
-        clearTimeout(closeTimeout);
-        if (useragent.isWin && !useragent.isOldIE)
-            event.capture(host.container, move, onContextMenuClose);
-    };
-
-    this.onContextMenuClose = onContextMenuClose;
-    var closeTimeout;
-    function onContextMenuClose() {
-        clearTimeout(closeTimeout);
-        closeTimeout = setTimeout(function () {
-            if (tempStyle) {
-                text.style.cssText = tempStyle;
-                tempStyle = '';
-            }
-            if (host.renderer.$keepTextAreaAtCursor == null) {
-                host.renderer.$keepTextAreaAtCursor = true;
-                host.renderer.$moveTextAreaToCursor();
-            }
-        }, useragent.isOldIE ? 200 : 0);
-    }
-
-    var onContextMenu = function(e) {
-        host.textInput.onContextMenu(e);
-        onContextMenuClose();
-    };
-    event.addListener(text, "mouseup", onContextMenu);
-    event.addListener(text, "mousedown", function(e) {
-        e.preventDefault();
-        onContextMenuClose();
-    });
-    event.addListener(host.renderer.scroller, "contextmenu", onContextMenu);
-    event.addListener(text, "contextmenu", onContextMenu);
-};
-
-exports.TextInput = TextInput;
-});
-
-ace.define("ace/mouse/default_handlers",["require","exports","module","ace/lib/dom","ace/lib/event","ace/lib/useragent"], function(require, exports, module) {
-"use strict";
-
-var dom = require("../lib/dom");
-var event = require("../lib/event");
-var useragent = require("../lib/useragent");
-
-var DRAG_OFFSET = 0; // pixels
-
-function DefaultHandlers(mouseHandler) {
-    mouseHandler.$clickSelection = null;
-
-    var editor = mouseHandler.editor;
-    editor.setDefaultHandler("mousedown", this.onMouseDown.bind(mouseHandler));
-    editor.setDefaultHandler("dblclick", this.onDoubleClick.bind(mouseHandler));
-    editor.setDefaultHandler("tripleclick", this.onTripleClick.bind(mouseHandler));
-    editor.setDefaultHandler("quadclick", this.onQuadClick.bind(mouseHandler));
-    editor.setDefaultHandler("mousewheel", this.onMouseWheel.bind(mouseHandler));
-    editor.setDefaultHandler("touchmove", this.onTouchMove.bind(mouseHandler));
-
-    var exports = ["select", "startSelect", "selectEnd", "selectAllEnd", "selectByWordsEnd",
-        "selectByLinesEnd", "dragWait", "dragWaitEnd", "focusWait"];
-
-    exports.forEach(function(x) {
-        mouseHandler[x] = this[x];
-    }, this);
-
-    mouseHandler.selectByLines = this.extendSelectionBy.bind(mouseHandler, "getLineRange");
-    mouseHandler.selectByWords = this.extendSelectionBy.bind(mouseHandler, "getWordRange");
-}
-
-(function() {
-
-    this.onMouseDown = function(ev) {
-        var inSelection = ev.inSelection();
-        var pos = ev.getDocumentPosition();
-        this.mousedownEvent = ev;
-        var editor = this.editor;
-
-        var button = ev.getButton();
-        if (button !== 0) {
-            var selectionRange = editor.getSelectionRange();
-            var selectionEmpty = selectionRange.isEmpty();
-            editor.$blockScrolling++;
-            if (selectionEmpty || button == 1)
-                editor.selection.moveToPosition(pos);
-            editor.$blockScrolling--;
-            if (button == 2)
-                editor.textInput.onContextMenu(ev.domEvent);
-            return; // stopping event here breaks contextmenu on ff mac
-        }
-
-        this.mousedownEvent.time = Date.now();
-        if (inSelection && !editor.isFocused()) {
-            editor.focus();
-            if (this.$focusTimout && !this.$clickSelection && !editor.inMultiSelectMode) {
-                this.setState("focusWait");
-                this.captureMouse(ev);
-                return;
-            }
-        }
-
-        this.captureMouse(ev);
-        this.startSelect(pos, ev.domEvent._clicks > 1);
-        return ev.preventDefault();
-    };
-
-    this.startSelect = function(pos, waitForClickSelection) {
-        pos = pos || this.editor.renderer.screenToTextCoordinates(this.x, this.y);
-        var editor = this.editor;
-        editor.$blockScrolling++;
-        if (this.mousedownEvent.getShiftKey())
-            editor.selection.selectToPosition(pos);
-        else if (!waitForClickSelection)
-            editor.selection.moveToPosition(pos);
-        if (!waitForClickSelection)
-            this.select();
-        if (editor.renderer.scroller.setCapture) {
-            editor.renderer.scroller.setCapture();
-        }
-        editor.setStyle("ace_selecting");
-        this.setState("select");
-        editor.$blockScrolling--;
-    };
-
-    this.select = function() {
-        var anchor, editor = this.editor;
-        var cursor = editor.renderer.screenToTextCoordinates(this.x, this.y);
-        editor.$blockScrolling++;
-        if (this.$clickSelection) {
-            var cmp = this.$clickSelection.comparePoint(cursor);
-
-            if (cmp == -1) {
-                anchor = this.$clickSelection.end;
-            } else if (cmp == 1) {
-                anchor = this.$clickSelection.start;
-            } else {
-                var orientedRange = calcRangeOrientation(this.$clickSelection, cursor);
-                cursor = orientedRange.cursor;
-                anchor = orientedRange.anchor;
-            }
-            editor.selection.setSelectionAnchor(anchor.row, anchor.column);
-        }
-        editor.selection.selectToPosition(cursor);
-        editor.$blockScrolling--;
-        editor.renderer.scrollCursorIntoView();
-    };
-
-    this.extendSelectionBy = function(unitName) {
-        var anchor, editor = this.editor;
-        var cursor = editor.renderer.screenToTextCoordinates(this.x, this.y);
-        var range = editor.selection[unitName](cursor.row, cursor.column);
-        editor.$blockScrolling++;
-        if (this.$clickSelection) {
-            var cmpStart = this.$clickSelection.comparePoint(range.start);
-            var cmpEnd = this.$clickSelection.comparePoint(range.end);
-
-            if (cmpStart == -1 && cmpEnd <= 0) {
-                anchor = this.$clickSelection.end;
-                if (range.end.row != cursor.row || range.end.column != cursor.column)
-                    cursor = range.start;
-            } else if (cmpEnd == 1 && cmpStart >= 0) {
-                anchor = this.$clickSelection.start;
-                if (range.start.row != cursor.row || range.start.column != cursor.column)
-                    cursor = range.end;
-            } else if (cmpStart == -1 && cmpEnd == 1) {
-                cursor = range.end;
-                anchor = range.start;
-            } else {
-                var orientedRange = calcRangeOrientation(this.$clickSelection, cursor);
-                cursor = orientedRange.cursor;
-                anchor = orientedRange.anchor;
-            }
-            editor.selection.setSelectionAnchor(anchor.row, anchor.column);
-        }
-        editor.selection.selectToPosition(cursor);
-        editor.$blockScrolling--;
-        editor.renderer.scrollCursorIntoView();
-    };
-
-    this.selectEnd =
-    this.selectAllEnd =
-    this.selectByWordsEnd =
-    this.selectByLinesEnd = function() {
-        this.$clickSelection = null;
-        this.editor.unsetStyle("ace_selecting");
-        if (this.editor.renderer.scroller.releaseCapture) {
-            this.editor.renderer.scroller.releaseCapture();
-        }
-    };
-
-    this.focusWait = function() {
-        var distance = calcDistance(this.mousedownEvent.x, this.mousedownEvent.y, this.x, this.y);
-        var time = Date.now();
-
-        if (distance > DRAG_OFFSET || time - this.mousedownEvent.time > this.$focusTimout)
-            this.startSelect(this.mousedownEvent.getDocumentPosition());
-    };
-
-    this.onDoubleClick = function(ev) {
-        var pos = ev.getDocumentPosition();
-        var editor = this.editor;
-        var session = editor.session;
-
-        var range = session.getBracketRange(pos);
-        if (range) {
-            if (range.isEmpty()) {
-                range.start.column--;
-                range.end.column++;
-            }
-            this.setState("select");
-        } else {
-            range = editor.selection.getWordRange(pos.row, pos.column);
-            this.setState("selectByWords");
-        }
-        this.$clickSelection = range;
-        this.select();
-    };
-
-    this.onTripleClick = function(ev) {
-        var pos = ev.getDocumentPosition();
-        var editor = this.editor;
-
-        this.setState("selectByLines");
-        var range = editor.getSelectionRange();
-        if (range.isMultiLine() && range.contains(pos.row, pos.column)) {
-            this.$clickSelection = editor.selection.getLineRange(range.start.row);
-            this.$clickSelection.end = editor.selection.getLineRange(range.end.row).end;
-        } else {
-            this.$clickSelection = editor.selection.getLineRange(pos.row);
-        }
-        this.select();
-    };
-
-    this.onQuadClick = function(ev) {
-        var editor = this.editor;
-
-        editor.selectAll();
-        this.$clickSelection = editor.getSelectionRange();
-        this.setState("selectAll");
-    };
-
-    this.onMouseWheel = function(ev) {
-        if (ev.getAccelKey())
-            return;
-        if (ev.getShiftKey() && ev.wheelY && !ev.wheelX) {
-            ev.wheelX = ev.wheelY;
-            ev.wheelY = 0;
-        }
-
-        var t = ev.domEvent.timeStamp;
-        var dt = t - (this.$lastScrollTime||0);
-
-        var editor = this.editor;
-        var isScrolable = editor.renderer.isScrollableBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
-        if (isScrolable || dt < 200) {
-            this.$lastScrollTime = t;
-            editor.renderer.scrollBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
-            return ev.stop();
-        }
-    };
-
-    this.onTouchMove = function (ev) {
-        var t = ev.domEvent.timeStamp;
-        var dt = t - (this.$lastScrollTime || 0);
-
-        var editor = this.editor;
-        var isScrolable = editor.renderer.isScrollableBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
-        if (isScrolable || dt < 200) {
-            this.$lastScrollTime = t;
-            editor.renderer.scrollBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
-            return ev.stop();
-        }
-    };
-
-}).call(DefaultHandlers.prototype);
-
-exports.DefaultHandlers = DefaultHandlers;
-
-function calcDistance(ax, ay, bx, by) {
-    return Math.sqrt(Math.pow(bx - ax, 2) + Math.pow(by - ay, 2));
-}
-
-function calcRangeOrientation(range, cursor) {
-    if (range.start.row == range.end.row)
-        var cmp = 2 * cursor.column - range.start.column - range.end.column;
-    else if (range.start.row == range.end.row - 1 && !range.start.column && !range.end.column)
-        var cmp = cursor.column - 4;
-    else
-        var cmp = 2 * cursor.row - range.start.row - range.end.row;
-
-    if (cmp < 0)
-        return {cursor: range.start, anchor: range.end};
-    else
-        return {cursor: range.end, anchor: range.start};
-}
-
-});
-
-ace.define("ace/tooltip",["require","exports","module","ace/lib/oop","ace/lib/dom"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var dom = require("./lib/dom");
-function Tooltip (parentNode) {
-    this.isOpen = false;
-    this.$element = null;
-    this.$parentNode = parentNode;
-}
-
-(function() {
-    this.$init = function() {
-        this.$element = dom.createElement("div");
-        this.$element.className = "ace_tooltip";
-        this.$element.style.display = "none";
-        this.$parentNode.appendChild(this.$element);
-        return this.$element;
-    };
-    this.getElement = function() {
-        return this.$element || this.$init();
-    };
-    this.setText = function(text) {
-        dom.setInnerText(this.getElement(), text);
-    };
-    this.setHtml = function(html) {
-        this.getElement().innerHTML = html;
-    };
-    this.setPosition = function(x, y) {
-        this.getElement().style.left = x + "px";
-        this.getElement().style.top = y + "px";
-    };
-    this.setClassName = function(className) {
-        dom.addCssClass(this.getElement(), className);
-    };
-    this.show = function(text, x, y) {
-        if (text != null)
-            this.setText(text);
-        if (x != null && y != null)
-            this.setPosition(x, y);
-        if (!this.isOpen) {
-            this.getElement().style.display = "block";
-            this.isOpen = true;
-        }
-    };
-
-    this.hide = function() {
-        if (this.isOpen) {
-            this.getElement().style.display = "none";
-            this.isOpen = false;
-        }
-    };
-    this.getHeight = function() {
-        return this.getElement().offsetHeight;
-    };
-    this.getWidth = function() {
-        return this.getElement().offsetWidth;
-    };
-
-}).call(Tooltip.prototype);
-
-exports.Tooltip = Tooltip;
-});
-
-ace.define("ace/mouse/default_gutter_handler",["require","exports","module","ace/lib/dom","ace/lib/oop","ace/lib/event","ace/tooltip"], function(require, exports, module) {
-"use strict";
-var dom = require("../lib/dom");
-var oop = require("../lib/oop");
-var event = require("../lib/event");
-var Tooltip = require("../tooltip").Tooltip;
-
-function GutterHandler(mouseHandler) {
-    var editor = mouseHandler.editor;
-    var gutter = editor.renderer.$gutterLayer;
-    var tooltip = new GutterTooltip(editor.container);
-
-    mouseHandler.editor.setDefaultHandler("guttermousedown", function(e) {
-        if (!editor.isFocused() || e.getButton() != 0)
-            return;
-        var gutterRegion = gutter.getRegion(e);
-
-        if (gutterRegion == "foldWidgets")
-            return;
-
-        var row = e.getDocumentPosition().row;
-        var selection = editor.session.selection;
-
-        if (e.getShiftKey())
-            selection.selectTo(row, 0);
-        else {
-            if (e.domEvent.detail == 2) {
-                editor.selectAll();
-                return e.preventDefault();
-            }
-            mouseHandler.$clickSelection = editor.selection.getLineRange(row);
-        }
-        mouseHandler.setState("selectByLines");
-        mouseHandler.captureMouse(e);
-        return e.preventDefault();
-    });
-
-
-    var tooltipTimeout, mouseEvent, tooltipAnnotation;
-
-    function showTooltip() {
-        var row = mouseEvent.getDocumentPosition().row;
-        var annotation = gutter.$annotations[row];
-        if (!annotation)
-            return hideTooltip();
-
-        var maxRow = editor.session.getLength();
-        if (row == maxRow) {
-            var screenRow = editor.renderer.pixelToScreenCoordinates(0, mouseEvent.y).row;
-            var pos = mouseEvent.$pos;
-            if (screenRow > editor.session.documentToScreenRow(pos.row, pos.column))
-                return hideTooltip();
-        }
-
-        if (tooltipAnnotation == annotation)
-            return;
-        tooltipAnnotation = annotation.text.join("<br/>");
-
-        tooltip.setHtml(tooltipAnnotation);
-        tooltip.show();
-        editor.on("mousewheel", hideTooltip);
-
-        if (mouseHandler.$tooltipFollowsMouse) {
-            moveTooltip(mouseEvent);
-        } else {
-            var gutterElement = mouseEvent.domEvent.target;
-            var rect = gutterElement.getBoundingClientRect();
-            var style = tooltip.getElement().style;
-            style.left = rect.right + "px";
-            style.top = rect.bottom + "px";
-        }
-    }
-
-    function hideTooltip() {
-        if (tooltipTimeout)
-            tooltipTimeout = clearTimeout(tooltipTimeout);
-        if (tooltipAnnotation) {
-            tooltip.hide();
-            tooltipAnnotation = null;
-            editor.removeEventListener("mousewheel", hideTooltip);
-        }
-    }
-
-    function moveTooltip(e) {
-        tooltip.setPosition(e.x, e.y);
-    }
-
-    mouseHandler.editor.setDefaultHandler("guttermousemove", function(e) {
-        var target = e.domEvent.target || e.domEvent.srcElement;
-        if (dom.hasCssClass(target, "ace_fold-widget"))
-            return hideTooltip();
-
-        if (tooltipAnnotation && mouseHandler.$tooltipFollowsMouse)
-            moveTooltip(e);
-
-        mouseEvent = e;
-        if (tooltipTimeout)
-            return;
-        tooltipTimeout = setTimeout(function() {
-            tooltipTimeout = null;
-            if (mouseEvent && !mouseHandler.isMousePressed)
-                showTooltip();
-            else
-                hideTooltip();
-        }, 50);
-    });
-
-    event.addListener(editor.renderer.$gutter, "mouseout", function(e) {
-        mouseEvent = null;
-        if (!tooltipAnnotation || tooltipTimeout)
-            return;
-
-        tooltipTimeout = setTimeout(function() {
-            tooltipTimeout = null;
-            hideTooltip();
-        }, 50);
-    });
-
-    editor.on("changeSession", hideTooltip);
-}
-
-function GutterTooltip(parentNode) {
-    Tooltip.call(this, parentNode);
-}
-
-oop.inherits(GutterTooltip, Tooltip);
-
-(function(){
-    this.setPosition = function(x, y) {
-        var windowWidth = window.innerWidth || document.documentElement.clientWidth;
-        var windowHeight = window.innerHeight || document.documentElement.clientHeight;
-        var width = this.getWidth();
-        var height = this.getHeight();
-        x += 15;
-        y += 15;
-        if (x + width > windowWidth) {
-            x -= (x + width) - windowWidth;
-        }
-        if (y + height > windowHeight) {
-            y -= 20 + height;
-        }
-        Tooltip.prototype.setPosition.call(this, x, y);
-    };
-
-}).call(GutterTooltip.prototype);
-
-
-
-exports.GutterHandler = GutterHandler;
-
-});
-
-ace.define("ace/mouse/mouse_event",["require","exports","module","ace/lib/event","ace/lib/useragent"], function(require, exports, module) {
-"use strict";
-
-var event = require("../lib/event");
-var useragent = require("../lib/useragent");
-var MouseEvent = exports.MouseEvent = function(domEvent, editor) {
-    this.domEvent = domEvent;
-    this.editor = editor;
-
-    this.x = this.clientX = domEvent.clientX;
-    this.y = this.clientY = domEvent.clientY;
-
-    this.$pos = null;
-    this.$inSelection = null;
-
-    this.propagationStopped = false;
-    this.defaultPrevented = false;
-};
-
-(function() {
-
-    this.stopPropagation = function() {
-        event.stopPropagation(this.domEvent);
-        this.propagationStopped = true;
-    };
-
-    this.preventDefault = function() {
-        event.preventDefault(this.domEvent);
-        this.defaultPrevented = true;
-    };
-
-    this.stop = function() {
-        this.stopPropagation();
-        this.preventDefault();
-    };
-    this.getDocumentPosition = function() {
-        if (this.$pos)
-            return this.$pos;
-
-        this.$pos = this.editor.renderer.screenToTextCoordinates(this.clientX, this.clientY);
-        return this.$pos;
-    };
-    this.inSelection = function() {
-        if (this.$inSelection !== null)
-            return this.$inSelection;
-
-        var editor = this.editor;
-
-
-        var selectionRange = editor.getSelectionRange();
-        if (selectionRange.isEmpty())
-            this.$inSelection = false;
-        else {
-            var pos = this.getDocumentPosition();
-            this.$inSelection = selectionRange.contains(pos.row, pos.column);
-        }
-
-        return this.$inSelection;
-    };
-    this.getButton = function() {
-        return event.getButton(this.domEvent);
-    };
-    this.getShiftKey = function() {
-        return this.domEvent.shiftKey;
-    };
-
-    this.getAccelKey = useragent.isMac
-        ? function() { return this.domEvent.metaKey; }
-        : function() { return this.domEvent.ctrlKey; };
-
-}).call(MouseEvent.prototype);
-
-});
-
-ace.define("ace/mouse/dragdrop_handler",["require","exports","module","ace/lib/dom","ace/lib/event","ace/lib/useragent"], function(require, exports, module) {
-"use strict";
-
-var dom = require("../lib/dom");
-var event = require("../lib/event");
-var useragent = require("../lib/useragent");
-
-var AUTOSCROLL_DELAY = 200;
-var SCROLL_CURSOR_DELAY = 200;
-var SCROLL_CURSOR_HYSTERESIS = 5;
-
-function DragdropHandler(mouseHandler) {
-
-    var editor = mouseHandler.editor;
-
-    var blankImage = dom.createElement("img");
-    blankImage.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
-    if (useragent.isOpera)
-        blankImage.style.cssText = "width:1px;height:1px;position:fixed !important;top:0;left:0;z-index:2147483647;opacity:0;";
-
-    var exports = ["dragWait", "dragWaitEnd", "startDrag", "dragReadyEnd", "onMouseDrag"];
-
-     exports.forEach(function(x) {
-         mouseHandler[x] = this[x];
-    }, this);
-    editor.addEventListener("mousedown", this.onMouseDown.bind(mouseHandler));
-
-
-    var mouseTarget = editor.container;
-    var dragSelectionMarker, x, y;
-    var timerId, range;
-    var dragCursor, counter = 0;
-    var dragOperation;
-    var isInternal;
-    var autoScrollStartTime;
-    var cursorMovedTime;
-    var cursorPointOnCaretMoved;
-
-    this.onDragStart = function(e) {
-        if (this.cancelDrag || !mouseTarget.draggable) {
-            var self = this;
-            setTimeout(function(){
-                self.startSelect();
-                self.captureMouse(e);
-            }, 0);
-            return e.preventDefault();
-        }
-        range = editor.getSelectionRange();
-
-        var dataTransfer = e.dataTransfer;
-        dataTransfer.effectAllowed = editor.getReadOnly() ? "copy" : "copyMove";
-        if (useragent.isOpera) {
-            editor.container.appendChild(blankImage);
-            blankImage.scrollTop = 0;
-        }
-        dataTransfer.setDragImage && dataTransfer.setDragImage(blankImage, 0, 0);
-        if (useragent.isOpera) {
-            editor.container.removeChild(blankImage);
-        }
-        dataTransfer.clearData();
-        dataTransfer.setData("Text", editor.session.getTextRange());
-
-        isInternal = true;
-        this.setState("drag");
-    };
-
-    this.onDragEnd = function(e) {
-        mouseTarget.draggable = false;
-        isInternal = false;
-        this.setState(null);
-        if (!editor.getReadOnly()) {
-            var dropEffect = e.dataTransfer.dropEffect;
-            if (!dragOperation && dropEffect == "move")
-                editor.session.remove(editor.getSelectionRange());
-            editor.renderer.$cursorLayer.setBlinking(true);
-        }
-        this.editor.unsetStyle("ace_dragging");
-        this.editor.renderer.setCursorStyle("");
-    };
-
-    this.onDragEnter = function(e) {
-        if (editor.getReadOnly() || !canAccept(e.dataTransfer))
-            return;
-        x = e.clientX;
-        y = e.clientY;
-        if (!dragSelectionMarker)
-            addDragMarker();
-        counter++;
-        e.dataTransfer.dropEffect = dragOperation = getDropEffect(e);
-        return event.preventDefault(e);
-    };
-
-    this.onDragOver = function(e) {
-        if (editor.getReadOnly() || !canAccept(e.dataTransfer))
-            return;
-        x = e.clientX;
-        y = e.clientY;
-        if (!dragSelectionMarker) {
-            addDragMarker();
-            counter++;
-        }
-        if (onMouseMoveTimer !== null)
-            onMouseMoveTimer = null;
-
-        e.dataTransfer.dropEffect = dragOperation = getDropEffect(e);
-        return event.preventDefault(e);
-    };
-
-    this.onDragLeave = function(e) {
-        counter--;
-        if (counter <= 0 && dragSelectionMarker) {
-            clearDragMarker();
-            dragOperation = null;
-            return event.preventDefault(e);
-        }
-    };
-
-    this.onDrop = function(e) {
-        if (!dragCursor)
-            return;
-        var dataTransfer = e.dataTransfer;
-        if (isInternal) {
-            switch (dragOperation) {
-                case "move":
-                    if (range.contains(dragCursor.row, dragCursor.column)) {
-                        range = {
-                            start: dragCursor,
-                            end: dragCursor
-                        };
-                    } else {
-                        range = editor.moveText(range, dragCursor);
-                    }
-                    break;
-                case "copy":
-                    range = editor.moveText(range, dragCursor, true);
-                    break;
-            }
-        } else {
-            var dropData = dataTransfer.getData('Text');
-            range = {
-                start: dragCursor,
-                end: editor.session.insert(dragCursor, dropData)
-            };
-            editor.focus();
-            dragOperation = null;
-        }
-        clearDragMarker();
-        return event.preventDefault(e);
-    };
-
-    event.addListener(mouseTarget, "dragstart", this.onDragStart.bind(mouseHandler));
-    event.addListener(mouseTarget, "dragend", this.onDragEnd.bind(mouseHandler));
-    event.addListener(mouseTarget, "dragenter", this.onDragEnter.bind(mouseHandler));
-    event.addListener(mouseTarget, "dragover", this.onDragOver.bind(mouseHandler));
-    event.addListener(mouseTarget, "dragleave", this.onDragLeave.bind(mouseHandler));
-    event.addListener(mouseTarget, "drop", this.onDrop.bind(mouseHandler));
-
-    function scrollCursorIntoView(cursor, prevCursor) {
-        var now = Date.now();
-        var vMovement = !prevCursor || cursor.row != prevCursor.row;
-        var hMovement = !prevCursor || cursor.column != prevCursor.column;
-        if (!cursorMovedTime || vMovement || hMovement) {
-            editor.$blockScrolling += 1;
-            editor.moveCursorToPosition(cursor);
-            editor.$blockScrolling -= 1;
-            cursorMovedTime = now;
-            cursorPointOnCaretMoved = {x: x, y: y};
-        } else {
-            var distance = calcDistance(cursorPointOnCaretMoved.x, cursorPointOnCaretMoved.y, x, y);
-            if (distance > SCROLL_CURSOR_HYSTERESIS) {
-                cursorMovedTime = null;
-            } else if (now - cursorMovedTime >= SCROLL_CURSOR_DELAY) {
-                editor.renderer.scrollCursorIntoView();
-                cursorMovedTime = null;
-            }
-        }
-    }
-
-    function autoScroll(cursor, prevCursor) {
-        var now = Date.now();
-        var lineHeight = editor.renderer.layerConfig.lineHeight;
-        var characterWidth = editor.renderer.layerConfig.characterWidth;
-        var editorRect = editor.renderer.scroller.getBoundingClientRect();
-        var offsets = {
-           x: {
-               left: x - editorRect.left,
-               right: editorRect.right - x
-           },
-           y: {
-               top: y - editorRect.top,
-               bottom: editorRect.bottom - y
-           }
-        };
-        var nearestXOffset = Math.min(offsets.x.left, offsets.x.right);
-        var nearestYOffset = Math.min(offsets.y.top, offsets.y.bottom);
-        var scrollCursor = {row: cursor.row, column: cursor.column};
-        if (nearestXOffset / characterWidth <= 2) {
-            scrollCursor.column += (offsets.x.left < offsets.x.right ? -3 : +2);
-        }
-        if (nearestYOffset / lineHeight <= 1) {
-            scrollCursor.row += (offsets.y.top < offsets.y.bottom ? -1 : +1);
-        }
-        var vScroll = cursor.row != scrollCursor.row;
-        var hScroll = cursor.column != scrollCursor.column;
-        var vMovement = !prevCursor || cursor.row != prevCursor.row;
-        if (vScroll || (hScroll && !vMovement)) {
-            if (!autoScrollStartTime)
-                autoScrollStartTime = now;
-            else if (now - autoScrollStartTime >= AUTOSCROLL_DELAY)
-                editor.renderer.scrollCursorIntoView(scrollCursor);
-        } else {
-            autoScrollStartTime = null;
-        }
-    }
-
-    function onDragInterval() {
-        var prevCursor = dragCursor;
-        dragCursor = editor.renderer.screenToTextCoordinates(x, y);
-        scrollCursorIntoView(dragCursor, prevCursor);
-        autoScroll(dragCursor, prevCursor);
-    }
-
-    function addDragMarker() {
-        range = editor.selection.toOrientedRange();
-        dragSelectionMarker = editor.session.addMarker(range, "ace_selection", editor.getSelectionStyle());
-        editor.clearSelection();
-        if (editor.isFocused())
-            editor.renderer.$cursorLayer.setBlinking(false);
-        clearInterval(timerId);
-        onDragInterval();
-        timerId = setInterval(onDragInterval, 20);
-        counter = 0;
-        event.addListener(document, "mousemove", onMouseMove);
-    }
-
-    function clearDragMarker() {
-        clearInterval(timerId);
-        editor.session.removeMarker(dragSelectionMarker);
-        dragSelectionMarker = null;
-        editor.$blockScrolling += 1;
-        editor.selection.fromOrientedRange(range);
-        editor.$blockScrolling -= 1;
-        if (editor.isFocused() && !isInternal)
-            editor.renderer.$cursorLayer.setBlinking(!editor.getReadOnly());
-        range = null;
-        dragCursor = null;
-        counter = 0;
-        autoScrollStartTime = null;
-        cursorMovedTime = null;
-        event.removeListener(document, "mousemove", onMouseMove);
-    }
-    var onMouseMoveTimer = null;
-    function onMouseMove() {
-        if (onMouseMoveTimer == null) {
-            onMouseMoveTimer = setTimeout(function() {
-                if (onMouseMoveTimer != null && dragSelectionMarker)
-                    clearDragMarker();
-            }, 20);
-        }
-    }
-
-    function canAccept(dataTransfer) {
-        var types = dataTransfer.types;
-        return !types || Array.prototype.some.call(types, function(type) {
-            return type == 'text/plain' || type == 'Text';
-        });
-    }
-
-    function getDropEffect(e) {
-        var copyAllowed = ['copy', 'copymove', 'all', 'uninitialized'];
-        var moveAllowed = ['move', 'copymove', 'linkmove', 'all', 'uninitialized'];
-
-        var copyModifierState = useragent.isMac ? e.altKey : e.ctrlKey;
-        var effectAllowed = "uninitialized";
-        try {
-            effectAllowed = e.dataTransfer.effectAllowed.toLowerCase();
-        } catch (e) {}
-        var dropEffect = "none";
-
-        if (copyModifierState && copyAllowed.indexOf(effectAllowed) >= 0)
-            dropEffect = "copy";
-        else if (moveAllowed.indexOf(effectAllowed) >= 0)
-            dropEffect = "move";
-        else if (copyAllowed.indexOf(effectAllowed) >= 0)
-            dropEffect = "copy";
-
-        return dropEffect;
-    }
-}
-
-(function() {
-
-    this.dragWait = function() {
-        var interval = Date.now() - this.mousedownEvent.time;
-        if (interval > this.editor.getDragDelay())
-            this.startDrag();
-    };
-
-    this.dragWaitEnd = function() {
-        var target = this.editor.container;
-        target.draggable = false;
-        this.startSelect(this.mousedownEvent.getDocumentPosition());
-        this.selectEnd();
-    };
-
-    this.dragReadyEnd = function(e) {
-        this.editor.renderer.$cursorLayer.setBlinking(!this.editor.getReadOnly());
-        this.editor.unsetStyle("ace_dragging");
-        this.editor.renderer.setCursorStyle("");
-        this.dragWaitEnd();
-    };
-
-    this.startDrag = function(){
-        this.cancelDrag = false;
-        var editor = this.editor;
-        var target = editor.container;
-        target.draggable = true;
-        editor.renderer.$cursorLayer.setBlinking(false);
-        editor.setStyle("ace_dragging");
-        var cursorStyle = useragent.isWin ? "default" : "move";
-        editor.renderer.setCursorStyle(cursorStyle);
-        this.setState("dragReady");
-    };
-
-    this.onMouseDrag = function(e) {
-        var target = this.editor.container;
-        if (useragent.isIE && this.state == "dragReady") {
-            var distance = calcDistance(this.mousedownEvent.x, this.mousedownEvent.y, this.x, this.y);
-            if (distance > 3)
-                target.dragDrop();
-        }
-        if (this.state === "dragWait") {
-            var distance = calcDistance(this.mousedownEvent.x, this.mousedownEvent.y, this.x, this.y);
-            if (distance > 0) {
-                target.draggable = false;
-                this.startSelect(this.mousedownEvent.getDocumentPosition());
-            }
-        }
-    };
-
-    this.onMouseDown = function(e) {
-        if (!this.$dragEnabled)
-            return;
-        this.mousedownEvent = e;
-        var editor = this.editor;
-
-        var inSelection = e.inSelection();
-        var button = e.getButton();
-        var clickCount = e.domEvent.detail || 1;
-        if (clickCount === 1 && button === 0 && inSelection) {
-            if (e.editor.inMultiSelectMode && (e.getAccelKey() || e.getShiftKey()))
-                return;
-            this.mousedownEvent.time = Date.now();
-            var eventTarget = e.domEvent.target || e.domEvent.srcElement;
-            if ("unselectable" in eventTarget)
-                eventTarget.unselectable = "on";
-            if (editor.getDragDelay()) {
-                if (useragent.isWebKit) {
-                    this.cancelDrag = true;
-                    var mouseTarget = editor.container;
-                    mouseTarget.draggable = true;
-                }
-                this.setState("dragWait");
-            } else {
-                this.startDrag();
-            }
-            this.captureMouse(e, this.onMouseDrag.bind(this));
-            e.defaultPrevented = true;
-        }
-    };
-
-}).call(DragdropHandler.prototype);
-
-
-function calcDistance(ax, ay, bx, by) {
-    return Math.sqrt(Math.pow(bx - ax, 2) + Math.pow(by - ay, 2));
-}
-
-exports.DragdropHandler = DragdropHandler;
-
-});
-
-ace.define("ace/lib/net",["require","exports","module","ace/lib/dom"], function(require, exports, module) {
-"use strict";
-var dom = require("./dom");
-
-exports.get = function (url, callback) {
-    var xhr = new XMLHttpRequest();
-    xhr.open('GET', url, true);
-    xhr.onreadystatechange = function () {
-        if (xhr.readyState === 4) {
-            callback(xhr.responseText);
-        }
-    };
-    xhr.send(null);
-};
-
-exports.loadScript = function(path, callback) {
-    var head = dom.getDocumentHead();
-    var s = document.createElement('script');
-
-    s.src = path;
-    head.appendChild(s);
-
-    s.onload = s.onreadystatechange = function(_, isAbort) {
-        if (isAbort || !s.readyState || s.readyState == "loaded" || s.readyState == "complete") {
-            s = s.onload = s.onreadystatechange = null;
-            if (!isAbort)
-                callback();
-        }
-    };
-};
-exports.qualifyURL = function(url) {
-    var a = document.createElement('a');
-    a.href = url;
-    return a.href;
-}
-
-});
-
-ace.define("ace/lib/event_emitter",["require","exports","module"], function(require, exports, module) {
-"use strict";
-
-var EventEmitter = {};
-var stopPropagation = function() { this.propagationStopped = true; };
-var preventDefault = function() { this.defaultPrevented = true; };
-
-EventEmitter._emit =
-EventEmitter._dispatchEvent = function(eventName, e) {
-    this._eventRegistry || (this._eventRegistry = {});
-    this._defaultHandlers || (this._defaultHandlers = {});
-
-    var listeners = this._eventRegistry[eventName] || [];
-    var defaultHandler = this._defaultHandlers[eventName];
-    if (!listeners.length && !defaultHandler)
-        return;
-
-    if (typeof e != "object" || !e)
-        e = {};
-
-    if (!e.type)
-        e.type = eventName;
-    if (!e.stopPropagation)
-        e.stopPropagation = stopPropagation;
-    if (!e.preventDefault)
-        e.preventDefault = preventDefault;
-
-    listeners = listeners.slice();
-    for (var i=0; i<listeners.length; i++) {
-        listeners[i](e, this);
-        if (e.propagationStopped)
-            break;
-    }
-
-    if (defaultHandler && !e.defaultPrevented)
-        return defaultHandler(e, this);
-};
-
-
-EventEmitter._signal = function(eventName, e) {
-    var listeners = (this._eventRegistry || {})[eventName];
-    if (!listeners)
-        return;
-    listeners = listeners.slice();
-    for (var i=0; i<listeners.length; i++)
-        listeners[i](e, this);
-};
-
-EventEmitter.once = function(eventName, callback) {
-    var _self = this;
-    callback && this.addEventListener(eventName, function newCallback() {
-        _self.removeEventListener(eventName, newCallback);
-        callback.apply(null, arguments);
-    });
-};
-
-
-EventEmitter.setDefaultHandler = function(eventName, callback) {
-    var handlers = this._defaultHandlers
-    if (!handlers)
-        handlers = this._defaultHandlers = {_disabled_: {}};
-
-    if (handlers[eventName]) {
-        var old = handlers[eventName];
-        var disabled = handlers._disabled_[eventName];
-        if (!disabled)
-            handlers._disabled_[eventName] = disabled = [];
-        disabled.push(old);
-        var i = disabled.indexOf(callback);
-        if (i != -1)
-            disabled.splice(i, 1);
-    }
-    handlers[eventName] = callback;
-};
-EventEmitter.removeDefaultHandler = function(eventName, callback) {
-    var handlers = this._defaultHandlers
-    if (!handlers)
-        return;
-    var disabled = handlers._disabled_[eventName];
-
-    if (handlers[eventName] == callback) {
-        var old = handlers[eventName];
-        if (disabled)
-            this.setDefaultHandler(eventName, disabled.pop());
-    } else if (disabled) {
-        var i = disabled.indexOf(callback);
-        if (i != -1)
-            disabled.splice(i, 1);
-    }
-};
-
-EventEmitter.on =
-EventEmitter.addEventListener = function(eventName, callback, capturing) {
-    this._eventRegistry = this._eventRegistry || {};
-
-    var listeners = this._eventRegistry[eventName];
-    if (!listeners)
-        listeners = this._eventRegistry[eventName] = [];
-
-    if (listeners.indexOf(callback) == -1)
-        listeners[capturing ? "unshift" : "push"](callback);
-    return callback;
-};
-
-EventEmitter.off =
-EventEmitter.removeListener =
-EventEmitter.removeEventListener = function(eventName, callback) {
-    this._eventRegistry = this._eventRegistry || {};
-
-    var listeners = this._eventRegistry[eventName];
-    if (!listeners)
-        return;
-
-    var index = listeners.indexOf(callback);
-    if (index !== -1)
-        listeners.splice(index, 1);
-};
-
-EventEmitter.removeAllListeners = function(eventName) {
-    if (this._eventRegistry) this._eventRegistry[eventName] = [];
-};
-
-exports.EventEmitter = EventEmitter;
-
-});
-
-ace.define("ace/lib/app_config",["require","exports","module","ace/lib/oop","ace/lib/event_emitter"], function(require, exports, module) {
-"no use strict";
-
-var oop = require("./oop");
-var EventEmitter = require("./event_emitter").EventEmitter;
-
-var optionsProvider = {
-    setOptions: function(optList) {
-        Object.keys(optList).forEach(function(key) {
-            this.setOption(key, optList[key]);
-        }, this);
-    },
-    getOptions: function(optionNames) {
-        var result = {};
-        if (!optionNames) {
-            optionNames = Object.keys(this.$options);
-        } else if (!Array.isArray(optionNames)) {
-            result = optionNames;
-            optionNames = Object.keys(result);
-        }
-        optionNames.forEach(function(key) {
-            result[key] = this.getOption(key);
-        }, this);
-        return result;
-    },
-    setOption: function(name, value) {
-        if (this["$" + name] === value)
-            return;
-        var opt = this.$options[name];
-        if (!opt) {
-            return warn('misspelled option "' + name + '"');
-        }
-        if (opt.forwardTo)
-            return this[opt.forwardTo] && this[opt.forwardTo].setOption(name, value);
-
-        if (!opt.handlesSet)
-            this["$" + name] = value;
-        if (opt && opt.set)
-            opt.set.call(this, value);
-    },
-    getOption: function(name) {
-        var opt = this.$options[name];
-        if (!opt) {
-            return warn('misspelled option "' + name + '"');
-        }
-        if (opt.forwardTo)
-            return this[opt.forwardTo] && this[opt.forwardTo].getOption(name);
-        return opt && opt.get ? opt.get.call(this) : this["$" + name];
-    }
-};
-
-function warn(message) {
-    if (typeof console != "undefined" && console.warn)
-        console.warn.apply(console, arguments);
-}
-
-function reportError(msg, data) {
-    var e = new Error(msg);
-    e.data = data;
-    if (typeof console == "object" && console.error)
-        console.error(e);
-    setTimeout(function() { throw e; });
-}
-
-var AppConfig = function() {
-    this.$defaultOptions = {};
-};
-
-(function() {
-    oop.implement(this, EventEmitter);
-    this.defineOptions = function(obj, path, options) {
-        if (!obj.$options)
-            this.$defaultOptions[path] = obj.$options = {};
-
-        Object.keys(options).forEach(function(key) {
-            var opt = options[key];
-            if (typeof opt == "string")
-                opt = {forwardTo: opt};
-
-            opt.name || (opt.name = key);
-            obj.$options[opt.name] = opt;
-            if ("initialValue" in opt)
-                obj["$" + opt.name] = opt.initialValue;
-        });
-        oop.implement(obj, optionsProvider);
-
-        return this;
-    };
-
-    this.resetOptions = function(obj) {
-        Object.keys(obj.$options).forEach(function(key) {
-            var opt = obj.$options[key];
-            if ("value" in opt)
-                obj.setOption(key, opt.value);
-        });
-    };
-
-    this.setDefaultValue = function(path, name, value) {
-        var opts = this.$defaultOptions[path] || (this.$defaultOptions[path] = {});
-        if (opts[name]) {
-            if (opts.forwardTo)
-                this.setDefaultValue(opts.forwardTo, name, value);
-            else
-                opts[name].value = value;
-        }
-    };
-
-    this.setDefaultValues = function(path, optionHash) {
-        Object.keys(optionHash).forEach(function(key) {
-            this.setDefaultValue(path, key, optionHash[key]);
-        }, this);
-    };
-
-    this.warn = warn;
-    this.reportError = reportError;
-
-}).call(AppConfig.prototype);
-
-exports.AppConfig = AppConfig;
-
-});
-
-ace.define("ace/config",["require","exports","module","ace/lib/lang","ace/lib/oop","ace/lib/net","ace/lib/app_config"], function(require, exports, module) {
-"no use strict";
-
-var lang = require("./lib/lang");
-var oop = require("./lib/oop");
-var net = require("./lib/net");
-var AppConfig = require("./lib/app_config").AppConfig;
-
-module.exports = exports = new AppConfig();
-
-var global = (function() {
-    return this || typeof window != "undefined" && window;
-})();
-
-var options = {
-    packaged: false,
-    workerPath: null,
-    modePath: null,
-    themePath: null,
-    basePath: "",
-    suffix: ".js",
-    $moduleUrls: {}
-};
-
-exports.get = function(key) {
-    if (!options.hasOwnProperty(key))
-        throw new Error("Unknown config key: " + key);
-
-    return options[key];
-};
-
-exports.set = function(key, value) {
-    if (!options.hasOwnProperty(key))
-        throw new Error("Unknown config key: " + key);
-
-    options[key] = value;
-};
-
-exports.all = function() {
-    return lang.copyObject(options);
-};
-exports.moduleUrl = function(name, component) {
-    if (options.$moduleUrls[name])
-        return options.$moduleUrls[name];
-
-    var parts = name.split("/");
-    component = component || parts[parts.length - 2] || "";
-    var sep = component == "snippets" ? "/" : "-";
-    var base = parts[parts.length - 1];
-    if (component == "worker" && sep == "-") {
-        var re = new RegExp("^" + component + "[\\-_]|[\\-_]" + component + "$", "g");
-        base = base.replace(re, "");
-    }
-
-    if ((!base || base == component) && parts.length > 1)
-        base = parts[parts.length - 2];
-    var path = options[component + "Path"];
-    if (path == null) {
-        path = options.basePath;
-    } else if (sep == "/") {
-        component = sep = "";
-    }
-    if (path && path.slice(-1) != "/")
-        path += "/";
-    return path + component + sep + base + this.get("suffix");
-};
-
-exports.setModuleUrl = function(name, subst) {
-    return options.$moduleUrls[name] = subst;
-};
-
-exports.$loading = {};
-exports.loadModule = function(moduleName, onLoad) {
-    var module, moduleType;
-    if (Array.isArray(moduleName)) {
-        moduleType = moduleName[0];
-        moduleName = moduleName[1];
-    }
-
-    try {
-        module = require(moduleName);
-    } catch (e) {}
-    if (module && !exports.$loading[moduleName])
-        return onLoad && onLoad(module);
-
-    if (!exports.$loading[moduleName])
-        exports.$loading[moduleName] = [];
-
-    exports.$loading[moduleName].push(onLoad);
-
-    if (exports.$loading[moduleName].length > 1)
-        return;
-
-    var afterLoad = function() {
-        require([moduleName], function(module) {
-            exports._emit("load.module", {name: moduleName, module: module});
-            var listeners = exports.$loading[moduleName];
-            exports.$loading[moduleName] = null;
-            listeners.forEach(function(onLoad) {
-                onLoad && onLoad(module);
-            });
-        });
-    };
-
-    if (!exports.get("packaged"))
-        return afterLoad();
-    net.loadScript(exports.moduleUrl(moduleName, moduleType), afterLoad);
-};
-init(true);function init(packaged) {
-
-    if (!global || !global.document)
-        return;
-
-    options.packaged = packaged || require.packaged || module.packaged || (global.define && define.packaged);
-
-    var scriptOptions = {};
-    var scriptUrl = "";
-    var currentScript = (document.currentScript || document._currentScript ); // native or polyfill
-    var currentDocument = currentScript && currentScript.ownerDocument || document;
-
-    var scripts = currentDocument.getElementsByTagName("script");
-    for (var i=0; i<scripts.length; i++) {
-        var script = scripts[i];
-
-        var src = script.src || script.getAttribute("src");
-        if (!src)
-            continue;
-
-        var attributes = script.attributes;
-        for (var j=0, l=attributes.length; j < l; j++) {
-            var attr = attributes[j];
-            if (attr.name.indexOf("data-ace-") === 0) {
-                scriptOptions[deHyphenate(attr.name.replace(/^data-ace-/, ""))] = attr.value;
-            }
-        }
-
-        var m = src.match(/^(.*)\/ace(\-\w+)?\.js(\?|$)/);
-        if (m)
-            scriptUrl = m[1];
-    }
-
-    if (scriptUrl) {
-        scriptOptions.base = scriptOptions.base || scriptUrl;
-        scriptOptions.packaged = true;
-    }
-
-    scriptOptions.basePath = scriptOptions.base;
-    scriptOptions.workerPath = scriptOptions.workerPath || scriptOptions.base;
-    scriptOptions.modePath = scriptOptions.modePath || scriptOptions.base;
-    scriptOptions.themePath = scriptOptions.themePath || scriptOptions.base;
-    delete scriptOptions.base;
-
-    for (var key in scriptOptions)
-        if (typeof scriptOptions[key] !== "undefined")
-            exports.set(key, scriptOptions[key]);
-}
-
-exports.init = init;
-
-function deHyphenate(str) {
-    return str.replace(/-(.)/g, function(m, m1) { return m1.toUpperCase(); });
-}
-
-});
-
-ace.define("ace/mouse/mouse_handler",["require","exports","module","ace/lib/event","ace/lib/useragent","ace/mouse/default_handlers","ace/mouse/default_gutter_handler","ace/mouse/mouse_event","ace/mouse/dragdrop_handler","ace/config"], function(require, exports, module) {
-"use strict";
-
-var event = require("../lib/event");
-var useragent = require("../lib/useragent");
-var DefaultHandlers = require("./default_handlers").DefaultHandlers;
-var DefaultGutterHandler = require("./default_gutter_handler").GutterHandler;
-var MouseEvent = require("./mouse_event").MouseEvent;
-var DragdropHandler = require("./dragdrop_handler").DragdropHandler;
-var config = require("../config");
-
-var MouseHandler = function(editor) {
-    var _self = this;
-    this.editor = editor;
-
-    new DefaultHandlers(this);
-    new DefaultGutterHandler(this);
-    new DragdropHandler(this);
-
-    var focusEditor = function(e) {
-        var windowBlurred = !document.hasFocus || !document.hasFocus()
-            || !editor.isFocused() && document.activeElement == (editor.textInput && editor.textInput.getElement())
-        if (windowBlurred)
-            window.focus();
-        editor.focus();
-    };
-
-    var mouseTarget = editor.renderer.getMouseEventTarget();
-    event.addListener(mouseTarget, "click", this.onMouseEvent.bind(this, "click"));
-    event.addListener(mouseTarget, "mousemove", this.onMouseMove.bind(this, "mousemove"));
-    event.addMultiMouseDownListener([
-        mouseTarget,
-        editor.renderer.scrollBarV && editor.renderer.scrollBarV.inner,
-        editor.renderer.scrollBarH && editor.renderer.scrollBarH.inner,
-        editor.textInput && editor.textInput.getElement()
-    ].filter(Boolean), [400, 300, 250], this, "onMouseEvent");
-    event.addMouseWheelListener(editor.container, this.onMouseWheel.bind(this, "mousewheel"));
-    event.addTouchMoveListener(editor.container, this.onTouchMove.bind(this, "touchmove"));
-
-    var gutterEl = editor.renderer.$gutter;
-    event.addListener(gutterEl, "mousedown", this.onMouseEvent.bind(this, "guttermousedown"));
-    event.addListener(gutterEl, "click", this.onMouseEvent.bind(this, "gutterclick"));
-    event.addListener(gutterEl, "dblclick", this.onMouseEvent.bind(this, "gutterdblclick"));
-    event.addListener(gutterEl, "mousemove", this.onMouseEvent.bind(this, "guttermousemove"));
-
-    event.addListener(mouseTarget, "mousedown", focusEditor);
-    event.addListener(gutterEl, "mousedown", focusEditor);
-    if (useragent.isIE && editor.renderer.scrollBarV) {
-        event.addListener(editor.renderer.scrollBarV.element, "mousedown", focusEditor);
-        event.addListener(editor.renderer.scrollBarH.element, "mousedown", focusEditor);
-    }
-
-    editor.on("mousemove", function(e){
-        if (_self.state || _self.$dragDelay || !_self.$dragEnabled)
-            return;
-
-        var character = editor.renderer.screenToTextCoordinates(e.x, e.y);
-        var range = editor.session.selection.getRange();
-        var renderer = editor.renderer;
-
-        if (!range.isEmpty() && range.insideStart(character.row, character.column)) {
-            renderer.setCursorStyle("default");
-        } else {
-            renderer.setCursorStyle("");
-        }
-    });
-};
-
-(function() {
-    this.onMouseEvent = function(name, e) {
-        this.editor._emit(name, new MouseEvent(e, this.editor));
-    };
-
-    this.onMouseMove = function(name, e) {
-        var listeners = this.editor._eventRegistry && this.editor._eventRegistry.mousemove;
-        if (!listeners || !listeners.length)
-            return;
-
-        this.editor._emit(name, new MouseEvent(e, this.editor));
-    };
-
-    this.onMouseWheel = function(name, e) {
-        var mouseEvent = new MouseEvent(e, this.editor);
-        mouseEvent.speed = this.$scrollSpeed * 2;
-        mouseEvent.wheelX = e.wheelX;
-        mouseEvent.wheelY = e.wheelY;
-
-        this.editor._emit(name, mouseEvent);
-    };
-
-    this.onTouchMove = function (name, e) {
-        var mouseEvent = new MouseEvent(e, this.editor);
-        mouseEvent.speed = 1;//this.$scrollSpeed * 2;
-        mouseEvent.wheelX = e.wheelX;
-        mouseEvent.wheelY = e.wheelY;
-        this.editor._emit(name, mouseEvent);
-    };
-
-    this.setState = function(state) {
-        this.state = state;
-    };
-
-    this.captureMouse = function(ev, mouseMoveHandler) {
-        this.x = ev.x;
-        this.y = ev.y;
-
-        this.isMousePressed = true;
-        var renderer = this.editor.renderer;
-        if (renderer.$keepTextAreaAtCursor)
-            renderer.$keepTextAreaAtCursor = null;
-
-        var self = this;
-        var onMouseMove = function(e) {
-            if (!e) return;
-            if (useragent.isWebKit && !e.which && self.releaseMouse)
-                return self.releaseMouse();
-
-            self.x = e.clientX;
-            self.y = e.clientY;
-            mouseMoveHandler && mouseMoveHandler(e);
-            self.mouseEvent = new MouseEvent(e, self.editor);
-            self.$mouseMoved = true;
-        };
-
-        var onCaptureEnd = function(e) {
-            clearInterval(timerId);
-            onCaptureInterval();
-            self[self.state + "End"] && self[self.state + "End"](e);
-            self.state = "";
-            if (renderer.$keepTextAreaAtCursor == null) {
-                renderer.$keepTextAreaAtCursor = true;
-                renderer.$moveTextAreaToCursor();
-            }
-            self.isMousePressed = false;
-            self.$onCaptureMouseMove = self.releaseMouse = null;
-            e && self.onMouseEvent("mouseup", e);
-        };
-
-        var onCaptureInterval = function() {
-            self[self.state] && self[self.state]();
-            self.$mouseMoved = false;
-        };
-
-        if (useragent.isOldIE && ev.domEvent.type == "dblclick") {
-            return setTimeout(function() {onCaptureEnd(ev);});
-        }
-
-        self.$onCaptureMouseMove = onMouseMove;
-        self.releaseMouse = event.capture(this.editor.container, onMouseMove, onCaptureEnd);
-        var timerId = setInterval(onCaptureInterval, 20);
-    };
-    this.releaseMouse = null;
-    this.cancelContextMenu = function() {
-        var stop = function(e) {
-            if (e && e.domEvent && e.domEvent.type != "contextmenu")
-                return;
-            this.editor.off("nativecontextmenu", stop);
-            if (e && e.domEvent)
-                event.stopEvent(e.domEvent);
-        }.bind(this);
-        setTimeout(stop, 10);
-        this.editor.on("nativecontextmenu", stop);
-    };
-}).call(MouseHandler.prototype);
-
-config.defineOptions(MouseHandler.prototype, "mouseHandler", {
-    scrollSpeed: {initialValue: 2},
-    dragDelay: {initialValue: (useragent.isMac ? 150 : 0)},
-    dragEnabled: {initialValue: true},
-    focusTimout: {initialValue: 0},
-    tooltipFollowsMouse: {initialValue: true}
-});
-
-
-exports.MouseHandler = MouseHandler;
-});
-
-ace.define("ace/mouse/fold_handler",["require","exports","module"], function(require, exports, module) {
-"use strict";
-
-function FoldHandler(editor) {
-
-    editor.on("click", function(e) {
-        var position = e.getDocumentPosition();
-        var session = editor.session;
-        var fold = session.getFoldAt(position.row, position.column, 1);
-        if (fold) {
-            if (e.getAccelKey())
-                session.removeFold(fold);
-            else
-                session.expandFold(fold);
-
-            e.stop();
-        }
-    });
-
-    editor.on("gutterclick", function(e) {
-        var gutterRegion = editor.renderer.$gutterLayer.getRegion(e);
-
-        if (gutterRegion == "foldWidgets") {
-            var row = e.getDocumentPosition().row;
-            var session = editor.session;
-            if (session.foldWidgets && session.foldWidgets[row])
-                editor.session.onFoldWidgetClick(row, e);
-            if (!editor.isFocused())
-                editor.focus();
-            e.stop();
-        }
-    });
-
-    editor.on("gutterdblclick", function(e) {
-        var gutterRegion = editor.renderer.$gutterLayer.getRegion(e);
-
-        if (gutterRegion == "foldWidgets") {
-            var row = e.getDocumentPosition().row;
-            var session = editor.session;
-            var data = session.getParentFoldRangeData(row, true);
-            var range = data.range || data.firstRange;
-
-            if (range) {
-                row = range.start.row;
-                var fold = session.getFoldAt(row, session.getLine(row).length, 1);
-
-                if (fold) {
-                    session.removeFold(fold);
-                } else {
-                    session.addFold("...", range);
-                    editor.renderer.scrollCursorIntoView({row: range.start.row, column: 0});
-                }
-            }
-            e.stop();
-        }
-    });
-}
-
-exports.FoldHandler = FoldHandler;
-
-});
-
-ace.define("ace/keyboard/keybinding",["require","exports","module","ace/lib/keys","ace/lib/event"], function(require, exports, module) {
-"use strict";
-
-var keyUtil  = require("../lib/keys");
-var event = require("../lib/event");
-
-var KeyBinding = function(editor) {
-    this.$editor = editor;
-    this.$data = {editor: editor};
-    this.$handlers = [];
-    this.setDefaultHandler(editor.commands);
-};
-
-(function() {
-    this.setDefaultHandler = function(kb) {
-        this.removeKeyboardHandler(this.$defaultHandler);
-        this.$defaultHandler = kb;
-        this.addKeyboardHandler(kb, 0);
-    };
-
-    this.setKeyboardHandler = function(kb) {
-        var h = this.$handlers;
-        if (h[h.length - 1] == kb)
-            return;
-
-        while (h[h.length - 1] && h[h.length - 1] != this.$defaultHandler)
-            this.removeKeyboardHandler(h[h.length - 1]);
-
-        this.addKeyboardHandler(kb, 1);
-    };
-
-    this.addKeyboardHandler = function(kb, pos) {
-        if (!kb)
-            return;
-        if (typeof kb == "function" && !kb.handleKeyboard)
-            kb.handleKeyboard = kb;
-        var i = this.$handlers.indexOf(kb);
-        if (i != -1)
-            this.$handlers.splice(i, 1);
-
-        if (pos == undefined)
-            this.$handlers.push(kb);
-        else
-            this.$handlers.splice(pos, 0, kb);
-
-        if (i == -1 && kb.attach)
-            kb.attach(this.$editor);
-    };
-
-    this.removeKeyboardHandler = function(kb) {
-        var i = this.$handlers.indexOf(kb);
-        if (i == -1)
-            return false;
-        this.$handlers.splice(i, 1);
-        kb.detach && kb.detach(this.$editor);
-        return true;
-    };
-
-    this.getKeyboardHandler = function() {
-        return this.$handlers[this.$handlers.length - 1];
-    };
-
-    this.getStatusText = function() {
-        var data = this.$data;
-        var editor = data.editor;
-        return this.$handlers.map(function(h) {
-            return h.getStatusText && h.getStatusText(editor, data) || "";
-        }).filter(Boolean).join(" ");
-    };
-
-    this.$callKeyboardHandlers = function(hashId, keyString, keyCode, e) {
-        var toExecute;
-        var success = false;
-        var commands = this.$editor.commands;
-
-        for (var i = this.$handlers.length; i--;) {
-            toExecute = this.$handlers[i].handleKeyboard(
-                this.$data, hashId, keyString, keyCode, e
-            );
-            if (!toExecute || !toExecute.command)
-                continue;
-            if (toExecute.command == "null") {
-                success = true;
-            } else {
-                success = commands.exec(toExecute.command, this.$editor, toExecute.args, e);
-            }
-            if (success && e && hashId != -1 &&
-                toExecute.passEvent != true && toExecute.command.passEvent != true
-            ) {
-                event.stopEvent(e);
-            }
-            if (success)
-                break;
-        }
-
-        if (!success && hashId == -1) {
-            toExecute = {command: "insertstring"};
-            success = commands.exec("insertstring", this.$editor, keyString);
-        }
-
-        if (success)
-            this.$editor._signal("keyboardActivity", toExecute);
-
-        return success;
-    };
-
-    this.onCommandKey = function(e, hashId, keyCode) {
-        var keyString = keyUtil.keyCodeToString(keyCode);
-        this.$callKeyboardHandlers(hashId, keyString, keyCode, e);
-    };
-
-    this.onTextInput = function(text) {
-        this.$callKeyboardHandlers(-1, text);
-    };
-
-}).call(KeyBinding.prototype);
-
-exports.KeyBinding = KeyBinding;
-});
-
-ace.define("ace/range",["require","exports","module"], function(require, exports, module) {
-"use strict";
-var comparePoints = function(p1, p2) {
-    return p1.row - p2.row || p1.column - p2.column;
-};
-var Range = function(startRow, startColumn, endRow, endColumn) {
-    this.start = {
-        row: startRow,
-        column: startColumn
-    };
-
-    this.end = {
-        row: endRow,
-        column: endColumn
-    };
-};
-
-(function() {
-    this.isEqual = function(range) {
-        return this.start.row === range.start.row &&
-            this.end.row === range.end.row &&
-            this.start.column === range.start.column &&
-            this.end.column === range.end.column;
-    };
-    this.toString = function() {
-        return ("Range: [" + this.start.row + "/" + this.start.column +
-            "] -> [" + this.end.row + "/" + this.end.column + "]");
-    };
-
-    this.contains = function(row, column) {
-        return this.compare(row, column) == 0;
-    };
-    this.compareRange = function(range) {
-        var cmp,
-            end = range.end,
-            start = range.start;
-
-        cmp = this.compare(end.row, end.column);
-        if (cmp == 1) {
-            cmp = this.compare(start.row, start.column);
-            if (cmp == 1) {
-                return 2;
-            } else if (cmp == 0) {
-                return 1;
-            } else {
-                return 0;
-            }
-        } else if (cmp == -1) {
-            return -2;
-        } else {
-            cmp = this.compare(start.row, start.column);
-            if (cmp == -1) {
-                return -1;
-            } else if (cmp == 1) {
-                return 42;
-            } else {
-                return 0;
-            }
-        }
-    };
-    this.comparePoint = function(p) {
-        return this.compare(p.row, p.column);
-    };
-    this.containsRange = function(range) {
-        return this.comparePoint(range.start) == 0 && this.comparePoint(range.end) == 0;
-    };
-    this.intersects = function(range) {
-        var cmp = this.compareRange(range);
-        return (cmp == -1 || cmp == 0 || cmp == 1);
-    };
-    this.isEnd = function(row, column) {
-        return this.end.row == row && this.end.column == column;
-    };
-    this.isStart = function(row, column) {
-        return this.start.row == row && this.start.column == column;
-    };
-    this.setStart = function(row, column) {
-        if (typeof row == "object") {
-            this.start.column = row.column;
-            this.start.row = row.row;
-        } else {
-            this.start.row = row;
-            this.start.column = column;
-        }
-    };
-    this.setEnd = function(row, column) {
-        if (typeof row == "object") {
-            this.end.column = row.column;
-            this.end.row = row.row;
-        } else {
-            this.end.row = row;
-            this.end.column = column;
-        }
-    };
-    this.inside = function(row, column) {
-        if (this.compare(row, column) == 0) {
-            if (this.isEnd(row, column) || this.isStart(row, column)) {
-                return false;
-            } else {
-                return true;
-            }
-        }
-        return false;
-    };
-    this.insideStart = function(row, column) {
-        if (this.compare(row, column) == 0) {
-            if (this.isEnd(row, column)) {
-                return false;
-            } else {
-                return true;
-            }
-        }
-        return false;
-    };
-    this.insideEnd = function(row, column) {
-        if (this.compare(row, column) == 0) {
-            if (this.isStart(row, column)) {
-                return false;
-            } else {
-                return true;
-            }
-        }
-        return false;
-    };
-    this.compare = function(row, column) {
-        if (!this.isMultiLine()) {
-            if (row === this.start.row) {
-                return column < this.start.column ? -1 : (column > this.end.column ? 1 : 0);
-            }
-        }
-
-        if (row < this.start.row)
-            return -1;
-
-        if (row > this.end.row)
-            return 1;
-
-        if (this.start.row === row)
-            return column >= this.start.column ? 0 : -1;
-
-        if (this.end.row === row)
-            return column <= this.end.column ? 0 : 1;
-
-        return 0;
-    };
-    this.compareStart = function(row, column) {
-        if (this.start.row == row && this.start.column == column) {
-            return -1;
-        } else {
-            return this.compare(row, column);
-        }
-    };
-    this.compareEnd = function(row, column) {
-        if (this.end.row == row && this.end.column == column) {
-            return 1;
-        } else {
-            return this.compare(row, column);
-        }
-    };
-    this.compareInside = function(row, column) {
-        if (this.end.row == row && this.end.column == column) {
-            return 1;
-        } else if (this.start.row == row && this.start.column == column) {
-            return -1;
-        } else {
-            return this.compare(row, column);
-        }
-    };
-    this.clipRows = function(firstRow, lastRow) {
-        if (this.end.row > lastRow)
-            var end = {row: lastRow + 1, column: 0};
-        else if (this.end.row < firstRow)
-            var end = {row: firstRow, column: 0};
-
-        if (this.start.row > lastRow)
-            var start = {row: lastRow + 1, column: 0};
-        else if (this.start.row < firstRow)
-            var start = {row: firstRow, column: 0};
-
-        return Range.fromPoints(start || this.start, end || this.end);
-    };
-    this.extend = function(row, column) {
-        var cmp = this.compare(row, column);
-
-        if (cmp == 0)
-            return this;
-        else if (cmp == -1)
-            var start = {row: row, column: column};
-        else
-            var end = {row: row, column: column};
-
-        return Range.fromPoints(start || this.start, end || this.end);
-    };
-
-    this.isEmpty = function() {
-        return (this.start.row === this.end.row && this.start.column === this.end.column);
-    };
-    this.isMultiLine = function() {
-        return (this.start.row !== this.end.row);
-    };
-    this.clone = function() {
-        return Range.fromPoints(this.start, this.end);
-    };
-    this.collapseRows = function() {
-        if (this.end.column == 0)
-            return new Range(this.start.row, 0, Math.max(this.start.row, this.end.row-1), 0)
-        else
-            return new Range(this.start.row, 0, this.end.row, 0)
-    };
-    this.toScreenRange = function(session) {
-        var screenPosStart = session.documentToScreenPosition(this.start);
-        var screenPosEnd = session.documentToScreenPosition(this.end);
-
-        return new Range(
-            screenPosStart.row, screenPosStart.column,
-            screenPosEnd.row, screenPosEnd.column
-        );
-    };
-    this.moveBy = function(row, column) {
-        this.start.row += row;
-        this.start.column += column;
-        this.end.row += row;
-        this.end.column += column;
-    };
-
-}).call(Range.prototype);
-Range.fromPoints = function(start, end) {
-    return new Range(start.row, start.column, end.row, end.column);
-};
-Range.comparePoints = comparePoints;
-
-Range.comparePoints = function(p1, p2) {
-    return p1.row - p2.row || p1.column - p2.column;
-};
-
-
-exports.Range = Range;
-});
-
-ace.define("ace/selection",["require","exports","module","ace/lib/oop","ace/lib/lang","ace/lib/event_emitter","ace/range"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var lang = require("./lib/lang");
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-var Range = require("./range").Range;
-var Selection = function(session) {
-    this.session = session;
-    this.doc = session.getDocument();
-
-    this.clearSelection();
-    this.lead = this.selectionLead = this.doc.createAnchor(0, 0);
-    this.anchor = this.selectionAnchor = this.doc.createAnchor(0, 0);
-
-    var self = this;
-    this.lead.on("change", function(e) {
-        self._emit("changeCursor");
-        if (!self.$isEmpty)
-            self._emit("changeSelection");
-        if (!self.$keepDesiredColumnOnChange && e.old.column != e.value.column)
-            self.$desiredColumn = null;
-    });
-
-    this.selectionAnchor.on("change", function() {
-        if (!self.$isEmpty)
-            self._emit("changeSelection");
-    });
-};
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-    this.isEmpty = function() {
-        return (this.$isEmpty || (
-            this.anchor.row == this.lead.row &&
-            this.anchor.column == this.lead.column
-        ));
-    };
-    this.isMultiLine = function() {
-        if (this.isEmpty()) {
-            return false;
-        }
-
-        return this.getRange().isMultiLine();
-    };
-    this.getCursor = function() {
-        return this.lead.getPosition();
-    };
-    this.setSelectionAnchor = function(row, column) {
-        this.anchor.setPosition(row, column);
-
-        if (this.$isEmpty) {
-            this.$isEmpty = false;
-            this._emit("changeSelection");
-        }
-    };
-    this.getSelectionAnchor = function() {
-        if (this.$isEmpty)
-            return this.getSelectionLead();
-        else
-            return this.anchor.getPosition();
-    };
-    this.getSelectionLead = function() {
-        return this.lead.getPosition();
-    };
-    this.shiftSelection = function(columns) {
-        if (this.$isEmpty) {
-            this.moveCursorTo(this.lead.row, this.lead.column + columns);
-            return;
-        }
-
-        var anchor = this.getSelectionAnchor();
-        var lead = this.getSelectionLead();
-
-        var isBackwards = this.isBackwards();
-
-        if (!isBackwards || anchor.column !== 0)
-            this.setSelectionAnchor(anchor.row, anchor.column + columns);
-
-        if (isBackwards || lead.column !== 0) {
-            this.$moveSelection(function() {
-                this.moveCursorTo(lead.row, lead.column + columns);
-            });
-        }
-    };
-    this.isBackwards = function() {
-        var anchor = this.anchor;
-        var lead = this.lead;
-        return (anchor.row > lead.row || (anchor.row == lead.row && anchor.column > lead.column));
-    };
-    this.getRange = function() {
-        var anchor = this.anchor;
-        var lead = this.lead;
-
-        if (this.isEmpty())
-            return Range.fromPoints(lead, lead);
-
-        if (this.isBackwards()) {
-            return Range.fromPoints(lead, anchor);
-        }
-        else {
-            return Range.fromPoints(anchor, lead);
-        }
-    };
-    this.clearSelection = function() {
-        if (!this.$isEmpty) {
-            this.$isEmpty = true;
-            this._emit("changeSelection");
-        }
-    };
-    this.selectAll = function() {
-        var lastRow = this.doc.getLength() - 1;
-        this.setSelectionAnchor(0, 0);
-        this.moveCursorTo(lastRow, this.doc.getLine(lastRow).length);
-    };
-    this.setRange =
-    this.setSelectionRange = function(range, reverse) {
-        if (reverse) {
-            this.setSelectionAnchor(range.end.row, range.end.column);
-            this.selectTo(range.start.row, range.start.column);
-        } else {
-            this.setSelectionAnchor(range.start.row, range.start.column);
-            this.selectTo(range.end.row, range.end.column);
-        }
-        if (this.getRange().isEmpty())
-            this.$isEmpty = true;
-        this.$desiredColumn = null;
-    };
-
-    this.$moveSelection = function(mover) {
-        var lead = this.lead;
-        if (this.$isEmpty)
-            this.setSelectionAnchor(lead.row, lead.column);
-
-        mover.call(this);
-    };
-    this.selectTo = function(row, column) {
-        this.$moveSelection(function() {
-            this.moveCursorTo(row, column);
-        });
-    };
-    this.selectToPosition = function(pos) {
-        this.$moveSelection(function() {
-            this.moveCursorToPosition(pos);
-        });
-    };
-    this.moveTo = function(row, column) {
-        this.clearSelection();
-        this.moveCursorTo(row, column);
-    };
-    this.moveToPosition = function(pos) {
-        this.clearSelection();
-        this.moveCursorToPosition(pos);
-    };
-    this.selectUp = function() {
-        this.$moveSelection(this.moveCursorUp);
-    };
-    this.selectDown = function() {
-        this.$moveSelection(this.moveCursorDown);
-    };
-    this.selectRight = function() {
-        this.$moveSelection(this.moveCursorRight);
-    };
-    this.selectLeft = function() {
-        this.$moveSelection(this.moveCursorLeft);
-    };
-    this.selectLineStart = function() {
-        this.$moveSelection(this.moveCursorLineStart);
-    };
-    this.selectLineEnd = function() {
-        this.$moveSelection(this.moveCursorLineEnd);
-    };
-    this.selectFileEnd = function() {
-        this.$moveSelection(this.moveCursorFileEnd);
-    };
-    this.selectFileStart = function() {
-        this.$moveSelection(this.moveCursorFileStart);
-    };
-    this.selectWordRight = function() {
-        this.$moveSelection(this.moveCursorWordRight);
-    };
-    this.selectWordLeft = function() {
-        this.$moveSelection(this.moveCursorWordLeft);
-    };
-    this.getWordRange = function(row, column) {
-        if (typeof column == "undefined") {
-            var cursor = row || this.lead;
-            row = cursor.row;
-            column = cursor.column;
-        }
-        return this.session.getWordRange(row, column);
-    };
-    this.selectWord = function() {
-        this.setSelectionRange(this.getWordRange());
-    };
-    this.selectAWord = function() {
-        var cursor = this.getCursor();
-        var range = this.session.getAWordRange(cursor.row, cursor.column);
-        this.setSelectionRange(range);
-    };
-
-    this.getLineRange = function(row, excludeLastChar) {
-        var rowStart = typeof row == "number" ? row : this.lead.row;
-        var rowEnd;
-
-        var foldLine = this.session.getFoldLine(rowStart);
-        if (foldLine) {
-            rowStart = foldLine.start.row;
-            rowEnd = foldLine.end.row;
-        } else {
-            rowEnd = rowStart;
-        }
-        if (excludeLastChar === true)
-            return new Range(rowStart, 0, rowEnd, this.session.getLine(rowEnd).length);
-        else
-            return new Range(rowStart, 0, rowEnd + 1, 0);
-    };
-    this.selectLine = function() {
-        this.setSelectionRange(this.getLineRange());
-    };
-    this.moveCursorUp = function() {
-        this.moveCursorBy(-1, 0);
-    };
-    this.moveCursorDown = function() {
-        this.moveCursorBy(1, 0);
-    };
-    this.moveCursorLeft = function() {
-        var cursor = this.lead.getPosition(),
-            fold;
-
-        if (fold = this.session.getFoldAt(cursor.row, cursor.column, -1)) {
-            this.moveCursorTo(fold.start.row, fold.start.column);
-        } else if (cursor.column === 0) {
-            if (cursor.row > 0) {
-                this.moveCursorTo(cursor.row - 1, this.doc.getLine(cursor.row - 1).length);
-            }
-        }
-        else {
-            var tabSize = this.session.getTabSize();
-            if (this.session.isTabStop(cursor) && this.doc.getLine(cursor.row).slice(cursor.column-tabSize, cursor.column).split(" ").length-1 == tabSize)
-                this.moveCursorBy(0, -tabSize);
-            else
-                this.moveCursorBy(0, -1);
-        }
-    };
-    this.moveCursorRight = function() {
-        var cursor = this.lead.getPosition(),
-            fold;
-        if (fold = this.session.getFoldAt(cursor.row, cursor.column, 1)) {
-            this.moveCursorTo(fold.end.row, fold.end.column);
-        }
-        else if (this.lead.column == this.doc.getLine(this.lead.row).length) {
-            if (this.lead.row < this.doc.getLength() - 1) {
-                this.moveCursorTo(this.lead.row + 1, 0);
-            }
-        }
-        else {
-            var tabSize = this.session.getTabSize();
-            var cursor = this.lead;
-            if (this.session.isTabStop(cursor) && this.doc.getLine(cursor.row).slice(cursor.column, cursor.column+tabSize).split(" ").length-1 == tabSize)
-                this.moveCursorBy(0, tabSize);
-            else
-                this.moveCursorBy(0, 1);
-        }
-    };
-    this.moveCursorLineStart = function() {
-        var row = this.lead.row;
-        var column = this.lead.column;
-        var screenRow = this.session.documentToScreenRow(row, column);
-        var firstColumnPosition = this.session.screenToDocumentPosition(screenRow, 0);
-        var beforeCursor = this.session.getDisplayLine(
-            row, null, firstColumnPosition.row,
-            firstColumnPosition.column
-        );
-
-        var leadingSpace = beforeCursor.match(/^\s*/);
-        if (leadingSpace[0].length != column && !this.session.$useEmacsStyleLineStart)
-            firstColumnPosition.column += leadingSpace[0].length;
-        this.moveCursorToPosition(firstColumnPosition);
-    };
-    this.moveCursorLineEnd = function() {
-        var lead = this.lead;
-        var lineEnd = this.session.getDocumentLastRowColumnPosition(lead.row, lead.column);
-        if (this.lead.column == lineEnd.column) {
-            var line = this.session.getLine(lineEnd.row);
-            if (lineEnd.column == line.length) {
-                var textEnd = line.search(/\s+$/);
-                if (textEnd > 0)
-                    lineEnd.column = textEnd;
-            }
-        }
-
-        this.moveCursorTo(lineEnd.row, lineEnd.column);
-    };
-    this.moveCursorFileEnd = function() {
-        var row = this.doc.getLength() - 1;
-        var column = this.doc.getLine(row).length;
-        this.moveCursorTo(row, column);
-    };
-    this.moveCursorFileStart = function() {
-        this.moveCursorTo(0, 0);
-    };
-    this.moveCursorLongWordRight = function() {
-        var row = this.lead.row;
-        var column = this.lead.column;
-        var line = this.doc.getLine(row);
-        var rightOfCursor = line.substring(column);
-
-        var match;
-        this.session.nonTokenRe.lastIndex = 0;
-        this.session.tokenRe.lastIndex = 0;
-        var fold = this.session.getFoldAt(row, column, 1);
-        if (fold) {
-            this.moveCursorTo(fold.end.row, fold.end.column);
-            return;
-        }
-        if (match = this.session.nonTokenRe.exec(rightOfCursor)) {
-            column += this.session.nonTokenRe.lastIndex;
-            this.session.nonTokenRe.lastIndex = 0;
-            rightOfCursor = line.substring(column);
-        }
-        if (column >= line.length) {
-            this.moveCursorTo(row, line.length);
-            this.moveCursorRight();
-            if (row < this.doc.getLength() - 1)
-                this.moveCursorWordRight();
-            return;
-        }
-        if (match = this.session.tokenRe.exec(rightOfCursor)) {
-            column += this.session.tokenRe.lastIndex;
-            this.session.tokenRe.lastIndex = 0;
-        }
-
-        this.moveCursorTo(row, column);
-    };
-    this.moveCursorLongWordLeft = function() {
-        var row = this.lead.row;
-        var column = this.lead.column;
-        var fold;
-        if (fold = this.session.getFoldAt(row, column, -1)) {
-            this.moveCursorTo(fold.start.row, fold.start.column);
-            return;
-        }
-
-        var str = this.session.getFoldStringAt(row, column, -1);
-        if (str == null) {
-            str = this.doc.getLine(row).substring(0, column);
-        }
-
-        var leftOfCursor = lang.stringReverse(str);
-        var match;
-        this.session.nonTokenRe.lastIndex = 0;
-        this.session.tokenRe.lastIndex = 0;
-        if (match = this.session.nonTokenRe.exec(leftOfCursor)) {
-            column -= this.session.nonTokenRe.lastIndex;
-            leftOfCursor = leftOfCursor.slice(this.session.nonTokenRe.lastIndex);
-            this.session.nonTokenRe.lastIndex = 0;
-        }
-        if (column <= 0) {
-            this.moveCursorTo(row, 0);
-            this.moveCursorLeft();
-            if (row > 0)
-                this.moveCursorWordLeft();
-            return;
-        }
-        if (match = this.session.tokenRe.exec(leftOfCursor)) {
-            column -= this.session.tokenRe.lastIndex;
-            this.session.tokenRe.lastIndex = 0;
-        }
-
-        this.moveCursorTo(row, column);
-    };
-
-    this.$shortWordEndIndex = function(rightOfCursor) {
-        var match, index = 0, ch;
-        var whitespaceRe = /\s/;
-        var tokenRe = this.session.tokenRe;
-
-        tokenRe.lastIndex = 0;
-        if (match = this.session.tokenRe.exec(rightOfCursor)) {
-            index = this.session.tokenRe.lastIndex;
-        } else {
-            while ((ch = rightOfCursor[index]) && whitespaceRe.test(ch))
-                index ++;
-
-            if (index < 1) {
-                tokenRe.lastIndex = 0;
-                 while ((ch = rightOfCursor[index]) && !tokenRe.test(ch)) {
-                    tokenRe.lastIndex = 0;
-                    index ++;
-                    if (whitespaceRe.test(ch)) {
-                        if (index > 2) {
-                            index--;
-                            break;
-                        } else {
-                            while ((ch = rightOfCursor[index]) && whitespaceRe.test(ch))
-                                index ++;
-                            if (index > 2)
-                                break;
-                        }
-                    }
-                }
-            }
-        }
-        tokenRe.lastIndex = 0;
-
-        return index;
-    };
-
-    this.moveCursorShortWordRight = function() {
-        var row = this.lead.row;
-        var column = this.lead.column;
-        var line = this.doc.getLine(row);
-        var rightOfCursor = line.substring(column);
-
-        var fold = this.session.getFoldAt(row, column, 1);
-        if (fold)
-            return this.moveCursorTo(fold.end.row, fold.end.column);
-
-        if (column == line.length) {
-            var l = this.doc.getLength();
-            do {
-                row++;
-                rightOfCursor = this.doc.getLine(row);
-            } while (row < l && /^\s*$/.test(rightOfCursor));
-
-            if (!/^\s+/.test(rightOfCursor))
-                rightOfCursor = "";
-            column = 0;
-        }
-
-        var index = this.$shortWordEndIndex(rightOfCursor);
-
-        this.moveCursorTo(row, column + index);
-    };
-
-    this.moveCursorShortWordLeft = function() {
-        var row = this.lead.row;
-        var column = this.lead.column;
-
-        var fold;
-        if (fold = this.session.getFoldAt(row, column, -1))
-            return this.moveCursorTo(fold.start.row, fold.start.column);
-
-        var line = this.session.getLine(row).substring(0, column);
-        if (column === 0) {
-            do {
-                row--;
-                line = this.doc.getLine(row);
-            } while (row > 0 && /^\s*$/.test(line));
-
-            column = line.length;
-            if (!/\s+$/.test(line))
-                line = "";
-        }
-
-        var leftOfCursor = lang.stringReverse(line);
-        var index = this.$shortWordEndIndex(leftOfCursor);
-
-        return this.moveCursorTo(row, column - index);
-    };
-
-    this.moveCursorWordRight = function() {
-        if (this.session.$selectLongWords)
-            this.moveCursorLongWordRight();
-        else
-            this.moveCursorShortWordRight();
-    };
-
-    this.moveCursorWordLeft = function() {
-        if (this.session.$selectLongWords)
-            this.moveCursorLongWordLeft();
-        else
-            this.moveCursorShortWordLeft();
-    };
-    this.moveCursorBy = function(rows, chars) {
-        var screenPos = this.session.documentToScreenPosition(
-            this.lead.row,
-            this.lead.column
-        );
-
-        if (chars === 0) {
-            if (this.$desiredColumn)
-                screenPos.column = this.$desiredColumn;
-            else
-                this.$desiredColumn = screenPos.column;
-        }
-
-        var docPos = this.session.screenToDocumentPosition(screenPos.row + rows, screenPos.column);
-
-        if (rows !== 0 && chars === 0 && docPos.row === this.lead.row && docPos.column === this.lead.column) {
-            if (this.session.lineWidgets && this.session.lineWidgets[docPos.row]) {
-                if (docPos.row > 0 || rows > 0)
-                    docPos.row++;
-            }
-        }
-        this.moveCursorTo(docPos.row, docPos.column + chars, chars === 0);
-    };
-    this.moveCursorToPosition = function(position) {
-        this.moveCursorTo(position.row, position.column);
-    };
-    this.moveCursorTo = function(row, column, keepDesiredColumn) {
-        var fold = this.session.getFoldAt(row, column, 1);
-        if (fold) {
-            row = fold.start.row;
-            column = fold.start.column;
-        }
-
-        this.$keepDesiredColumnOnChange = true;
-        this.lead.setPosition(row, column);
-        this.$keepDesiredColumnOnChange = false;
-
-        if (!keepDesiredColumn)
-            this.$desiredColumn = null;
-    };
-    this.moveCursorToScreen = function(row, column, keepDesiredColumn) {
-        var pos = this.session.screenToDocumentPosition(row, column);
-        this.moveCursorTo(pos.row, pos.column, keepDesiredColumn);
-    };
-    this.detach = function() {
-        this.lead.detach();
-        this.anchor.detach();
-        this.session = this.doc = null;
-    };
-
-    this.fromOrientedRange = function(range) {
-        this.setSelectionRange(range, range.cursor == range.start);
-        this.$desiredColumn = range.desiredColumn || this.$desiredColumn;
-    };
-
-    this.toOrientedRange = function(range) {
-        var r = this.getRange();
-        if (range) {
-            range.start.column = r.start.column;
-            range.start.row = r.start.row;
-            range.end.column = r.end.column;
-            range.end.row = r.end.row;
-        } else {
-            range = r;
-        }
-
-        range.cursor = this.isBackwards() ? range.start : range.end;
-        range.desiredColumn = this.$desiredColumn;
-        return range;
-    };
-    this.getRangeOfMovements = function(func) {
-        var start = this.getCursor();
-        try {
-            func(this);
-            var end = this.getCursor();
-            return Range.fromPoints(start,end);
-        } catch(e) {
-            return Range.fromPoints(start,start);
-        } finally {
-            this.moveCursorToPosition(start);
-        }
-    };
-
-    this.toJSON = function() {
-        if (this.rangeCount) {
-            var data = this.ranges.map(function(r) {
-                var r1 = r.clone();
-                r1.isBackwards = r.cursor == r.start;
-                return r1;
-            });
-        } else {
-            var data = this.getRange();
-            data.isBackwards = this.isBackwards();
-        }
-        return data;
-    };
-
-    this.fromJSON = function(data) {
-        if (data.start == undefined) {
-            if (this.rangeList) {
-                this.toSingleRange(data[0]);
-                for (var i = data.length; i--; ) {
-                    var r = Range.fromPoints(data[i].start, data[i].end);
-                    if (data[i].isBackwards)
-                        r.cursor = r.start;
-                    this.addRange(r, true);
-                }
-                return;
-            } else
-                data = data[0];
-        }
-        if (this.rangeList)
-            this.toSingleRange(data);
-        this.setSelectionRange(data, data.isBackwards);
-    };
-
-    this.isEqual = function(data) {
-        if ((data.length || this.rangeCount) && data.length != this.rangeCount)
-            return false;
-        if (!data.length || !this.ranges)
-            return this.getRange().isEqual(data);
-
-        for (var i = this.ranges.length; i--; ) {
-            if (!this.ranges[i].isEqual(data[i]))
-                return false;
-        }
-        return true;
-    };
-
-}).call(Selection.prototype);
-
-exports.Selection = Selection;
-});
-
-ace.define("ace/tokenizer",["require","exports","module","ace/config"], function(require, exports, module) {
-"use strict";
-
-var config = require("./config");
-var MAX_TOKEN_COUNT = 2000;
-var Tokenizer = function(rules) {
-    this.states = rules;
-
-    this.regExps = {};
-    this.matchMappings = {};
-    for (var key in this.states) {
-        var state = this.states[key];
-        var ruleRegExps = [];
-        var matchTotal = 0;
-        var mapping = this.matchMappings[key] = {defaultToken: "text"};
-        var flag = "g";
-
-        var splitterRurles = [];
-        for (var i = 0; i < state.length; i++) {
-            var rule = state[i];
-            if (rule.defaultToken)
-                mapping.defaultToken = rule.defaultToken;
-            if (rule.caseInsensitive)
-                flag = "gi";
-            if (rule.regex == null)
-                continue;
-
-            if (rule.regex instanceof RegExp)
-                rule.regex = rule.regex.toString().slice(1, -1);
-            var adjustedregex = rule.regex;
-            var matchcount = new RegExp("(?:(" + adjustedregex + ")|(.))").exec("a").length - 2;
-            if (Array.isArray(rule.token)) {
-                if (rule.token.length == 1 || matchcount == 1) {
-                    rule.token = rule.token[0];
-                } else if (matchcount - 1 != rule.token.length) {
-                    this.reportError("number of classes and regexp groups doesn't match", {
-                        rule: rule,
-                        groupCount: matchcount - 1
-                    });
-                    rule.token = rule.token[0];
-                } else {
-                    rule.tokenArray = rule.token;
-                    rule.token = null;
-                    rule.onMatch = this.$arrayTokens;
-                }
-            } else if (typeof rule.token == "function" && !rule.onMatch) {
-                if (matchcount > 1)
-                    rule.onMatch = this.$applyToken;
-                else
-                    rule.onMatch = rule.token;
-            }
-
-            if (matchcount > 1) {
-                if (/\\\d/.test(rule.regex)) {
-                    adjustedregex = rule.regex.replace(/\\([0-9]+)/g, function(match, digit) {
-                        return "\\" + (parseInt(digit, 10) + matchTotal + 1);
-                    });
-                } else {
-                    matchcount = 1;
-                    adjustedregex = this.removeCapturingGroups(rule.regex);
-                }
-                if (!rule.splitRegex && typeof rule.token != "string")
-                    splitterRurles.push(rule); // flag will be known only at the very end
-            }
-
-            mapping[matchTotal] = i;
-            matchTotal += matchcount;
-
-            ruleRegExps.push(adjustedregex);
-            if (!rule.onMatch)
-                rule.onMatch = null;
-        }
-
-        if (!ruleRegExps.length) {
-            mapping[0] = 0;
-            ruleRegExps.push("$");
-        }
-
-        splitterRurles.forEach(function(rule) {
-            rule.splitRegex = this.createSplitterRegexp(rule.regex, flag);
-        }, this);
-
-        this.regExps[key] = new RegExp("(" + ruleRegExps.join(")|(") + ")|($)", flag);
-    }
-};
-
-(function() {
-    this.$setMaxTokenCount = function(m) {
-        MAX_TOKEN_COUNT = m | 0;
-    };
-
-    this.$applyToken = function(str) {
-        var values = this.splitRegex.exec(str).slice(1);
-        var types = this.token.apply(this, values);
-        if (typeof types === "string")
-            return [{type: types, value: str}];
-
-        var tokens = [];
-        for (var i = 0, l = types.length; i < l; i++) {
-            if (values[i])
-                tokens[tokens.length] = {
-                    type: types[i],
-                    value: values[i]
-                };
-        }
-        return tokens;
-    };
-
-    this.$arrayTokens = function(str) {
-        if (!str)
-            return [];
-        var values = this.splitRegex.exec(str);
-        if (!values)
-            return "text";
-        var tokens = [];
-        var types = this.tokenArray;
-        for (var i = 0, l = types.length; i < l; i++) {
-            if (values[i + 1])
-                tokens[tokens.length] = {
-                    type: types[i],
-                    value: values[i + 1]
-                };
-        }
-        return tokens;
-    };
-
-    this.removeCapturingGroups = function(src) {
-        var r = src.replace(
-            /\[(?:\\.|[^\]])*?\]|\\.|\(\?[:=!]|(\()/g,
-            function(x, y) {return y ? "(?:" : x;}
-        );
-        return r;
-    };
-
-    this.createSplitterRegexp = function(src, flag) {
-        if (src.indexOf("(?=") != -1) {
-            var stack = 0;
-            var inChClass = false;
-            var lastCapture = {};
-            src.replace(/(\\.)|(\((?:\?[=!])?)|(\))|([\[\]])/g, function(
-                m, esc, parenOpen, parenClose, square, index
-            ) {
-                if (inChClass) {
-                    inChClass = square != "]";
-                } else if (square) {
-                    inChClass = true;
-                } else if (parenClose) {
-                    if (stack == lastCapture.stack) {
-                        lastCapture.end = index+1;
-                        lastCapture.stack = -1;
-                    }
-                    stack--;
-                } else if (parenOpen) {
-                    stack++;
-                    if (parenOpen.length != 1) {
-                        lastCapture.stack = stack
-                        lastCapture.start = index;
-                    }
-                }
-                return m;
-            });
-
-            if (lastCapture.end != null && /^\)*$/.test(src.substr(lastCapture.end)))
-                src = src.substring(0, lastCapture.start) + src.substr(lastCapture.end);
-        }
-        if (src.charAt(0) != "^") src = "^" + src;
-        if (src.charAt(src.length - 1) != "$") src += "$";
-
-        return new RegExp(src, (flag||"").replace("g", ""));
-    };
-    this.getLineTokens = function(line, startState) {
-        if (startState && typeof startState != "string") {
-            var stack = startState.slice(0);
-            startState = stack[0];
-            if (startState === "#tmp") {
-                stack.shift()
-                startState = stack.shift()
-            }
-        } else
-            var stack = [];
-
-        var currentState = startState || "start";
-        var state = this.states[currentState];
-        if (!state) {
-            currentState = "start";
-            state = this.states[currentState];
-        }
-        var mapping = this.matchMappings[currentState];
-        var re = this.regExps[currentState];
-        re.lastIndex = 0;
-
-        var match, tokens = [];
-        var lastIndex = 0;
-        var matchAttempts = 0;
-
-        var token = {type: null, value: ""};
-
-        while (match = re.exec(line)) {
-            var type = mapping.defaultToken;
-            var rule = null;
-            var value = match[0];
-            var index = re.lastIndex;
-
-            if (index - value.length > lastIndex) {
-                var skipped = line.substring(lastIndex, index - value.length);
-                if (token.type == type) {
-                    token.value += skipped;
-                } else {
-                    if (token.type)
-                        tokens.push(token);
-                    token = {type: type, value: skipped};
-                }
-            }
-
-            for (var i = 0; i < match.length-2; i++) {
-                if (match[i + 1] === undefined)
-                    continue;
-
-                rule = state[mapping[i]];
-
-                if (rule.onMatch)
-                    type = rule.onMatch(value, currentState, stack);
-                else
-                    type = rule.token;
-
-                if (rule.next) {
-                    if (typeof rule.next == "string") {
-                        currentState = rule.next;
-                    } else {
-                        currentState = rule.next(currentState, stack);
-                    }
-
-                    state = this.states[currentState];
-                    if (!state) {
-                        this.reportError("state doesn't exist", currentState);
-                        currentState = "start";
-                        state = this.states[currentState];
-                    }
-                    mapping = this.matchMappings[currentState];
-                    lastIndex = index;
-                    re = this.regExps[currentState];
-                    re.lastIndex = index;
-                }
-                break;
-            }
-
-            if (value) {
-                if (typeof type === "string") {
-                    if ((!rule || rule.merge !== false) && token.type === type) {
-                        token.value += value;
-                    } else {
-                        if (token.type)
-                            tokens.push(token);
-                        token = {type: type, value: value};
-                    }
-                } else if (type) {
-                    if (token.type)
-                        tokens.push(token);
-                    token = {type: null, value: ""};
-                    for (var i = 0; i < type.length; i++)
-                        tokens.push(type[i]);
-                }
-            }
-
-            if (lastIndex == line.length)
-                break;
-
-            lastIndex = index;
-
-            if (matchAttempts++ > MAX_TOKEN_COUNT) {
-                if (matchAttempts > 2 * line.length) {
-                    this.reportError("infinite loop with in ace tokenizer", {
-                        startState: startState,
-                        line: line
-                    });
-                }
-                while (lastIndex < line.length) {
-                    if (token.type)
-                        tokens.push(token);
-                    token = {
-                        value: line.substring(lastIndex, lastIndex += 2000),
-                        type: "overflow"
-                    };
-                }
-                currentState = "start";
-                stack = [];
-                break;
-            }
-        }
-
-        if (token.type)
-            tokens.push(token);
-
-        if (stack.length > 1) {
-            if (stack[0] !== currentState)
-                stack.unshift("#tmp", currentState);
-        }
-        return {
-            tokens : tokens,
-            state : stack.length ? stack : currentState
-        };
-    };
-
-    this.reportError = config.reportError;
-
-}).call(Tokenizer.prototype);
-
-exports.Tokenizer = Tokenizer;
-});
-
-ace.define("ace/mode/text_highlight_rules",["require","exports","module","ace/lib/lang"], function(require, exports, module) {
-"use strict";
-
-var lang = require("../lib/lang");
-
-var TextHighlightRules = function() {
-
-    this.$rules = {
-        "start" : [{
-            token : "empty_line",
-            regex : '^$'
-        }, {
-            defaultToken : "text"
-        }]
-    };
-};
-
-(function() {
-
-    this.addRules = function(rules, prefix) {
-        if (!prefix) {
-            for (var key in rules)
-                this.$rules[key] = rules[key];
-            return;
-        }
-        for (var key in rules) {
-            var state = rules[key];
-            for (var i = 0; i < state.length; i++) {
-                var rule = state[i];
-                if (rule.next || rule.onMatch) {
-                    if (typeof rule.next == "string") {
-                        if (rule.next.indexOf(prefix) !== 0)
-                            rule.next = prefix + rule.next;
-                    }
-                    if (rule.nextState && rule.nextState.indexOf(prefix) !== 0)
-                        rule.nextState = prefix + rule.nextState;
-                }
-            }
-            this.$rules[prefix + key] = state;
-        }
-    };
-
-    this.getRules = function() {
-        return this.$rules;
-    };
-
-    this.embedRules = function (HighlightRules, prefix, escapeRules, states, append) {
-        var embedRules = typeof HighlightRules == "function"
-            ? new HighlightRules().getRules()
-            : HighlightRules;
-        if (states) {
-            for (var i = 0; i < states.length; i++)
-                states[i] = prefix + states[i];
-        } else {
-            states = [];
-            for (var key in embedRules)
-                states.push(prefix + key);
-        }
-
-        this.addRules(embedRules, prefix);
-
-        if (escapeRules) {
-            var addRules = Array.prototype[append ? "push" : "unshift"];
-            for (var i = 0; i < states.length; i++)
-                addRules.apply(this.$rules[states[i]], lang.deepCopy(escapeRules));
-        }
-
-        if (!this.$embeds)
-            this.$embeds = [];
-        this.$embeds.push(prefix);
-    };
-
-    this.getEmbeds = function() {
-        return this.$embeds;
-    };
-
-    var pushState = function(currentState, stack) {
-        if (currentState != "start" || stack.length)
-            stack.unshift(this.nextState, currentState);
-        return this.nextState;
-    };
-    var popState = function(currentState, stack) {
-        stack.shift();
-        return stack.shift() || "start";
-    };
-
-    this.normalizeRules = function() {
-        var id = 0;
-        var rules = this.$rules;
-        function processState(key) {
-            var state = rules[key];
-            state.processed = true;
-            for (var i = 0; i < state.length; i++) {
-                var rule = state[i];
-                var toInsert = null;
-                if (Array.isArray(rule)) {
-                    toInsert = rule;
-                    rule = {};
-                }
-                if (!rule.regex && rule.start) {
-                    rule.regex = rule.start;
-                    if (!rule.next)
-                        rule.next = [];
-                    rule.next.push({
-                        defaultToken: rule.token
-                    }, {
-                        token: rule.token + ".end",
-                        regex: rule.end || rule.start,
-                        next: "pop"
-                    });
-                    rule.token = rule.token + ".start";
-                    rule.push = true;
-                }
-                var next = rule.next || rule.push;
-                if (next && Array.isArray(next)) {
-                    var stateName = rule.stateName;
-                    if (!stateName)  {
-                        stateName = rule.token;
-                        if (typeof stateName != "string")
-                            stateName = stateName[0] || "";
-                        if (rules[stateName])
-                            stateName += id++;
-                    }
-                    rules[stateName] = next;
-                    rule.next = stateName;
-                    processState(stateName);
-                } else if (next == "pop") {
-                    rule.next = popState;
-                }
-
-                if (rule.push) {
-                    rule.nextState = rule.next || rule.push;
-                    rule.next = pushState;
-                    delete rule.push;
-                }
-
-                if (rule.rules) {
-                    for (var r in rule.rules) {
-                        if (rules[r]) {
-                            if (rules[r].push)
-                                rules[r].push.apply(rules[r], rule.rules[r]);
-                        } else {
-                            rules[r] = rule.rules[r];
-                        }
-                    }
-                }
-                var includeName = typeof rule == "string"
-                    ? rule
-                    : typeof rule.include == "string"
-                    ? rule.include
-                    : "";
-                if (includeName) {
-                    toInsert = rules[includeName];
-                }
-
-                if (toInsert) {
-                    var args = [i, 1].concat(toInsert);
-                    if (rule.noEscape)
-                        args = args.filter(function(x) {return !x.next;});
-                    state.splice.apply(state, args);
-                    i--;
-                }
-
-                if (rule.keywordMap) {
-                    rule.token = this.createKeywordMapper(
-                        rule.keywordMap, rule.defaultToken || "text", rule.caseInsensitive
-                    );
-                    delete rule.defaultToken;
-                }
-            }
-        }
-        Object.keys(rules).forEach(processState, this);
-    };
-
-    this.createKeywordMapper = function(map, defaultToken, ignoreCase, splitChar) {
-        var keywords = Object.create(null);
-        Object.keys(map).forEach(function(className) {
-            var a = map[className];
-            if (ignoreCase)
-                a = a.toLowerCase();
-            var list = a.split(splitChar || "|");
-            for (var i = list.length; i--; )
-                keywords[list[i]] = className;
-        });
-        if (Object.getPrototypeOf(keywords)) {
-            keywords.__proto__ = null;
-        }
-        this.$keywordList = Object.keys(keywords);
-        map = null;
-        return ignoreCase
-            ? function(value) {return keywords[value.toLowerCase()] || defaultToken }
-            : function(value) {return keywords[value] || defaultToken };
-    };
-
-    this.getKeywords = function() {
-        return this.$keywords;
-    };
-
-}).call(TextHighlightRules.prototype);
-
-exports.TextHighlightRules = TextHighlightRules;
-});
-
-ace.define("ace/mode/behaviour",["require","exports","module"], function(require, exports, module) {
-"use strict";
-
-var Behaviour = function() {
-   this.$behaviours = {};
-};
-
-(function () {
-
-    this.add = function (name, action, callback) {
-        switch (undefined) {
-          case this.$behaviours:
-              this.$behaviours = {};
-          case this.$behaviours[name]:
-              this.$behaviours[name] = {};
-        }
-        this.$behaviours[name][action] = callback;
-    }
-
-    this.addBehaviours = function (behaviours) {
-        for (var key in behaviours) {
-            for (var action in behaviours[key]) {
-                this.add(key, action, behaviours[key][action]);
-            }
-        }
-    }
-
-    this.remove = function (name) {
-        if (this.$behaviours && this.$behaviours[name]) {
-            delete this.$behaviours[name];
-        }
-    }
-
-    this.inherit = function (mode, filter) {
-        if (typeof mode === "function") {
-            var behaviours = new mode().getBehaviours(filter);
-        } else {
-            var behaviours = mode.getBehaviours(filter);
-        }
-        this.addBehaviours(behaviours);
-    }
-
-    this.getBehaviours = function (filter) {
-        if (!filter) {
-            return this.$behaviours;
-        } else {
-            var ret = {}
-            for (var i = 0; i < filter.length; i++) {
-                if (this.$behaviours[filter[i]]) {
-                    ret[filter[i]] = this.$behaviours[filter[i]];
-                }
-            }
-            return ret;
-        }
-    }
-
-}).call(Behaviour.prototype);
-
-exports.Behaviour = Behaviour;
-});
-
-ace.define("ace/unicode",["require","exports","module"], function(require, exports, module) {
-"use strict";
-exports.packages = {};
-
-addUnicodePackage({
-    L:  "0041-005A0061-007A00AA00B500BA00C0-00D600D8-00F600F8-02C102C6-02D102E0-02E402EC02EE0370-037403760377037A-037D03860388-038A038C038E-03A103A3-03F503F7-0481048A-05250531-055605590561-058705D0-05EA05F0-05F20621-064A066E066F0671-06D306D506E506E606EE06EF06FA-06FC06FF07100712-072F074D-07A507B107CA-07EA07F407F507FA0800-0815081A082408280904-0939093D09500958-0961097109720979-097F0985-098C098F09900993-09A809AA-09B009B209B6-09B909BD09CE09DC09DD09DF-09E109F009F10A05-0A0A0A0F0A100A13-0A280A2A-0A300A320A330A350A360A380A390A59-0A5C0A5E0A72-0A740A85-0A8D0A8F-0A910A93-0AA80AAA-0AB00AB20AB30AB5-0AB90ABD0AD00AE00AE10B05-0B0C0B0F0B100B13-0B280B2A-0B300B320B330B35-0B390B3D0B5C0B5D0B5F-0B610B710B830B85-0B8A0B8E-0B900B92-0B950B990B9A0B9C0B9E0B9F0BA30BA40BA8-0BAA0BAE-0BB90BD00C05-0C0C0C0E-0C100C12-0C280C2A-0C330C35-0C390C3D0C580C590C600C610C85-0C8C0C8E-0C900C92-0CA80CAA-0CB30CB5-0CB90CBD0CDE0CE00CE10D05-0D0C0D0E-0D100D12-0D280D2A-0D390D3D0D600D610D7A-0D7F0D85-0D960D9A-0DB10DB3-0DBB0DBD0DC0-0DC60E01-0E300E320E330E40-0E460E810E820E840E870E880E8A0E8D0E94-0E970E99-0E9F0EA1-0EA30EA50EA70EAA0EAB0EAD-0EB00EB20EB30EBD0EC0-0EC40EC60EDC0EDD0F000F40-0F470F49-0F6C0F88-0F8B1000-102A103F1050-1055105A-105D106110651066106E-10701075-1081108E10A0-10C510D0-10FA10FC1100-1248124A-124D1250-12561258125A-125D1260-1288128A-128D1290-12B012B2-12B512B8-12BE12C012C2-12C512C8-12D612D8-13101312-13151318-135A1380-138F13A0-13F41401-166C166F-167F1681-169A16A0-16EA1700-170C170E-17111720-17311740-17511760-176C176E-17701780-17B317D717DC1820-18771880-18A818AA18B0-18F51900-191C1950-196D1970-19741980-19AB19C1-19C71A00-1A161A20-1A541AA71B05-1B331B45-1B4B1B83-1BA01BAE1BAF1C00-1C231C4D-1C4F1C5A-1C7D1CE9-1CEC1CEE-1CF11D00-1DBF1E00-1F151F18-1F1D1F20-1F451F48-1F4D1F50-1F571F591F5B1F5D1F5F-1F7D1F80-1FB41FB6-1FBC1FBE1FC2-1FC41FC6-1FCC1FD0-1FD31FD6-1FDB1FE0-1FEC1FF2-1FF41FF6-1FFC2071207F2090-209421022107210A-211321152119-211D212421262128212A-212D212F-2139213C-213F2145-2149214E218321842C00-2C2E2C30-2C5E2C60-2CE42CEB-2CEE2D00-2D252D30-2D652D6F2D80-2D962DA0-2DA62DA8-2DAE2DB0-2DB62DB8-2DBE2DC0-2DC62DC8-2DCE2DD0-2DD62DD8-2DDE2E2F300530063031-3035303B303C3041-3096309D-309F30A1-30FA30FC-30FF3105-312D3131-318E31A0-31B731F0-31FF3400-4DB54E00-9FCBA000-A48CA4D0-A4FDA500-A60CA610-A61FA62AA62BA640-A65FA662-A66EA67F-A697A6A0-A6E5A717-A71FA722-A788A78BA78CA7FB-A801A803-A805A807-A80AA80C-A822A840-A873A882-A8B3A8F2-A8F7A8FBA90A-A925A930-A946A960-A97CA984-A9B2A9CFAA00-AA28AA40-AA42AA44-AA4BAA60-AA76AA7AAA80-AAAFAAB1AAB5AAB6AAB9-AABDAAC0AAC2AADB-AADDABC0-ABE2AC00-D7A3D7B0-D7C6D7CB-D7FBF900-FA2DFA30-FA6DFA70-FAD9FB00-FB06FB13-FB17FB1DFB1F-FB28FB2A-FB36FB38-FB3CFB3EFB40FB41FB43FB44FB46-FBB1FBD3-FD3DFD50-FD8FFD92-FDC7FDF0-FDFBFE70-FE74FE76-FEFCFF21-FF3AFF41-FF5AFF66-FFBEFFC2-FFC7FFCA-FFCFFFD2-FFD7FFDA-FFDC",
-    Ll: "0061-007A00AA00B500BA00DF-00F600F8-00FF01010103010501070109010B010D010F01110113011501170119011B011D011F01210123012501270129012B012D012F01310133013501370138013A013C013E014001420144014601480149014B014D014F01510153015501570159015B015D015F01610163016501670169016B016D016F0171017301750177017A017C017E-0180018301850188018C018D019201950199-019B019E01A101A301A501A801AA01AB01AD01B001B401B601B901BA01BD-01BF01C601C901CC01CE01D001D201D401D601D801DA01DC01DD01DF01E101E301E501E701E901EB01ED01EF01F001F301F501F901FB01FD01FF02010203020502070209020B020D020F02110213021502170219021B021D021F02210223022502270229022B022D022F02310233-0239023C023F0240024202470249024B024D024F-02930295-02AF037103730377037B-037D039003AC-03CE03D003D103D5-03D703D903DB03DD03DF03E103E303E503E703E903EB03ED03EF-03F303F503F803FB03FC0430-045F04610463046504670469046B046D046F04710473047504770479047B047D047F0481048B048D048F04910493049504970499049B049D049F04A104A304A504A704A904AB04AD04AF04B104B304B504B704B904BB04BD04BF04C204C404C604C804CA04CC04CE04CF04D104D304D504D704D904DB04DD04DF04E104E304E504E704E904EB04ED04EF04F104F304F504F704F904FB04FD04FF05010503050505070509050B050D050F05110513051505170519051B051D051F0521052305250561-05871D00-1D2B1D62-1D771D79-1D9A1E011E031E051E071E091E0B1E0D1E0F1E111E131E151E171E191E1B1E1D1E1F1E211E231E251E271E291E2B1E2D1E2F1E311E331E351E371E391E3B1E3D1E3F1E411E431E451E471E491E4B1E4D1E4F1E511E531E551E571E591E5B1E5D1E5F1E611E631E651E671E691E6B1E6D1E6F1E711E731E751E771E791E7B1E7D1E7F1E811E831E851E871E891E8B1E8D1E8F1E911E931E95-1E9D1E9F1EA11EA31EA51EA71EA91EAB1EAD1EAF1EB11EB31EB51EB71EB91EBB1EBD1EBF1EC11EC31EC51EC71EC91ECB1ECD1ECF1ED11ED31ED51ED71ED91EDB1EDD1EDF1EE11EE31EE51EE71EE91EEB1EED1EEF1EF11EF31EF51EF71EF91EFB1EFD1EFF-1F071F10-1F151F20-1F271F30-1F371F40-1F451F50-1F571F60-1F671F70-1F7D1F80-1F871F90-1F971FA0-1FA71FB0-1FB41FB61FB71FBE1FC2-1FC41FC61FC71FD0-1FD31FD61FD71FE0-1FE71FF2-1FF41FF61FF7210A210E210F2113212F21342139213C213D2146-2149214E21842C30-2C5E2C612C652C662C682C6A2C6C2C712C732C742C76-2C7C2C812C832C852C872C892C8B2C8D2C8F2C912C932C952C972C992C9B2C9D2C9F2CA12CA32CA52CA72CA92CAB2CAD2CAF2CB12CB32CB52CB72CB92CBB2CBD2CBF2CC12CC32CC52CC72CC92CCB2CCD2CCF2CD12CD32CD52CD72CD92CDB2CDD2CDF2CE12CE32CE42CEC2CEE2D00-2D25A641A643A645A647A649A64BA64DA64FA651A653A655A657A659A65BA65DA65FA663A665A667A669A66BA66DA681A683A685A687A689A68BA68DA68FA691A693A695A697A723A725A727A729A72BA72DA72F-A731A733A735A737A739A73BA73DA73FA741A743A745A747A749A74BA74DA74FA751A753A755A757A759A75BA75DA75FA761A763A765A767A769A76BA76DA76FA771-A778A77AA77CA77FA781A783A785A787A78CFB00-FB06FB13-FB17FF41-FF5A",
-    Lu: "0041-005A00C0-00D600D8-00DE01000102010401060108010A010C010E01100112011401160118011A011C011E01200122012401260128012A012C012E01300132013401360139013B013D013F0141014301450147014A014C014E01500152015401560158015A015C015E01600162016401660168016A016C016E017001720174017601780179017B017D018101820184018601870189-018B018E-0191019301940196-0198019C019D019F01A001A201A401A601A701A901AC01AE01AF01B1-01B301B501B701B801BC01C401C701CA01CD01CF01D101D301D501D701D901DB01DE01E001E201E401E601E801EA01EC01EE01F101F401F6-01F801FA01FC01FE02000202020402060208020A020C020E02100212021402160218021A021C021E02200222022402260228022A022C022E02300232023A023B023D023E02410243-02460248024A024C024E03700372037603860388-038A038C038E038F0391-03A103A3-03AB03CF03D2-03D403D803DA03DC03DE03E003E203E403E603E803EA03EC03EE03F403F703F903FA03FD-042F04600462046404660468046A046C046E04700472047404760478047A047C047E0480048A048C048E04900492049404960498049A049C049E04A004A204A404A604A804AA04AC04AE04B004B204B404B604B804BA04BC04BE04C004C104C304C504C704C904CB04CD04D004D204D404D604D804DA04DC04DE04E004E204E404E604E804EA04EC04EE04F004F204F404F604F804FA04FC04FE05000502050405060508050A050C050E05100512051405160518051A051C051E0520052205240531-055610A0-10C51E001E021E041E061E081E0A1E0C1E0E1E101E121E141E161E181E1A1E1C1E1E1E201E221E241E261E281E2A1E2C1E2E1E301E321E341E361E381E3A1E3C1E3E1E401E421E441E461E481E4A1E4C1E4E1E501E521E541E561E581E5A1E5C1E5E1E601E621E641E661E681E6A1E6C1E6E1E701E721E741E761E781E7A1E7C1E7E1E801E821E841E861E881E8A1E8C1E8E1E901E921E941E9E1EA01EA21EA41EA61EA81EAA1EAC1EAE1EB01EB21EB41EB61EB81EBA1EBC1EBE1EC01EC21EC41EC61EC81ECA1ECC1ECE1ED01ED21ED41ED61ED81EDA1EDC1EDE1EE01EE21EE41EE61EE81EEA1EEC1EEE1EF01EF21EF41EF61EF81EFA1EFC1EFE1F08-1F0F1F18-1F1D1F28-1F2F1F38-1F3F1F48-1F4D1F591F5B1F5D1F5F1F68-1F6F1FB8-1FBB1FC8-1FCB1FD8-1FDB1FE8-1FEC1FF8-1FFB21022107210B-210D2110-211221152119-211D212421262128212A-212D2130-2133213E213F214521832C00-2C2E2C602C62-2C642C672C692C6B2C6D-2C702C722C752C7E-2C802C822C842C862C882C8A2C8C2C8E2C902C922C942C962C982C9A2C9C2C9E2CA02CA22CA42CA62CA82CAA2CAC2CAE2CB02CB22CB42CB62CB82CBA2CBC2CBE2CC02CC22CC42CC62CC82CCA2CCC2CCE2CD02CD22CD42CD62CD82CDA2CDC2CDE2CE02CE22CEB2CEDA640A642A644A646A648A64AA64CA64EA650A652A654A656A658A65AA65CA65EA662A664A666A668A66AA66CA680A682A684A686A688A68AA68CA68EA690A692A694A696A722A724A726A728A72AA72CA72EA732A734A736A738A73AA73CA73EA740A742A744A746A748A74AA74CA74EA750A752A754A756A758A75AA75CA75EA760A762A764A766A768A76AA76CA76EA779A77BA77DA77EA780A782A784A786A78BFF21-FF3A",
-    Lt: "01C501C801CB01F21F88-1F8F1F98-1F9F1FA8-1FAF1FBC1FCC1FFC",
-    Lm: "02B0-02C102C6-02D102E0-02E402EC02EE0374037A0559064006E506E607F407F507FA081A0824082809710E460EC610FC17D718431AA71C78-1C7D1D2C-1D611D781D9B-1DBF2071207F2090-20942C7D2D6F2E2F30053031-3035303B309D309E30FC-30FEA015A4F8-A4FDA60CA67FA717-A71FA770A788A9CFAA70AADDFF70FF9EFF9F",
-    Lo: "01BB01C0-01C3029405D0-05EA05F0-05F20621-063F0641-064A066E066F0671-06D306D506EE06EF06FA-06FC06FF07100712-072F074D-07A507B107CA-07EA0800-08150904-0939093D09500958-096109720979-097F0985-098C098F09900993-09A809AA-09B009B209B6-09B909BD09CE09DC09DD09DF-09E109F009F10A05-0A0A0A0F0A100A13-0A280A2A-0A300A320A330A350A360A380A390A59-0A5C0A5E0A72-0A740A85-0A8D0A8F-0A910A93-0AA80AAA-0AB00AB20AB30AB5-0AB90ABD0AD00AE00AE10B05-0B0C0B0F0B100B13-0B280B2A-0B300B320B330B35-0B390B3D0B5C0B5D0B5F-0B610B710B830B85-0B8A0B8E-0B900B92-0B950B990B9A0B9C0B9E0B9F0BA30BA40BA8-0BAA0BAE-0BB90BD00C05-0C0C0C0E-0C100C12-0C280C2A-0C330C35-0C390C3D0C580C590C600C610C85-0C8C0C8E-0C900C92-0CA80CAA-0CB30CB5-0CB90CBD0CDE0CE00CE10D05-0D0C0D0E-0D100D12-0D280D2A-0D390D3D0D600D610D7A-0D7F0D85-0D960D9A-0DB10DB3-0DBB0DBD0DC0-0DC60E01-0E300E320E330E40-0E450E810E820E840E870E880E8A0E8D0E94-0E970E99-0E9F0EA1-0EA30EA50EA70EAA0EAB0EAD-0EB00EB20EB30EBD0EC0-0EC40EDC0EDD0F000F40-0F470F49-0F6C0F88-0F8B1000-102A103F1050-1055105A-105D106110651066106E-10701075-1081108E10D0-10FA1100-1248124A-124D1250-12561258125A-125D1260-1288128A-128D1290-12B012B2-12B512B8-12BE12C012C2-12C512C8-12D612D8-13101312-13151318-135A1380-138F13A0-13F41401-166C166F-167F1681-169A16A0-16EA1700-170C170E-17111720-17311740-17511760-176C176E-17701780-17B317DC1820-18421844-18771880-18A818AA18B0-18F51900-191C1950-196D1970-19741980-19AB19C1-19C71A00-1A161A20-1A541B05-1B331B45-1B4B1B83-1BA01BAE1BAF1C00-1C231C4D-1C4F1C5A-1C771CE9-1CEC1CEE-1CF12135-21382D30-2D652D80-2D962DA0-2DA62DA8-2DAE2DB0-2DB62DB8-2DBE2DC0-2DC62DC8-2DCE2DD0-2DD62DD8-2DDE3006303C3041-3096309F30A1-30FA30FF3105-312D3131-318E31A0-31B731F0-31FF3400-4DB54E00-9FCBA000-A014A016-A48CA4D0-A4F7A500-A60BA610-A61FA62AA62BA66EA6A0-A6E5A7FB-A801A803-A805A807-A80AA80C-A822A840-A873A882-A8B3A8F2-A8F7A8FBA90A-A925A930-A946A960-A97CA984-A9B2AA00-AA28AA40-AA42AA44-AA4BAA60-AA6FAA71-AA76AA7AAA80-AAAFAAB1AAB5AAB6AAB9-AABDAAC0AAC2AADBAADCABC0-ABE2AC00-D7A3D7B0-D7C6D7CB-D7FBF900-FA2DFA30-FA6DFA70-FAD9FB1DFB1F-FB28FB2A-FB36FB38-FB3CFB3EFB40FB41FB43FB44FB46-FBB1FBD3-FD3DFD50-FD8FFD92-FDC7FDF0-FDFBFE70-FE74FE76-FEFCFF66-FF6FFF71-FF9DFFA0-FFBEFFC2-FFC7FFCA-FFCFFFD2-FFD7FFDA-FFDC",
-    M:  "0300-036F0483-04890591-05BD05BF05C105C205C405C505C70610-061A064B-065E067006D6-06DC06DE-06E406E706E806EA-06ED07110730-074A07A6-07B007EB-07F30816-0819081B-08230825-08270829-082D0900-0903093C093E-094E0951-0955096209630981-098309BC09BE-09C409C709C809CB-09CD09D709E209E30A01-0A030A3C0A3E-0A420A470A480A4B-0A4D0A510A700A710A750A81-0A830ABC0ABE-0AC50AC7-0AC90ACB-0ACD0AE20AE30B01-0B030B3C0B3E-0B440B470B480B4B-0B4D0B560B570B620B630B820BBE-0BC20BC6-0BC80BCA-0BCD0BD70C01-0C030C3E-0C440C46-0C480C4A-0C4D0C550C560C620C630C820C830CBC0CBE-0CC40CC6-0CC80CCA-0CCD0CD50CD60CE20CE30D020D030D3E-0D440D46-0D480D4A-0D4D0D570D620D630D820D830DCA0DCF-0DD40DD60DD8-0DDF0DF20DF30E310E34-0E3A0E47-0E4E0EB10EB4-0EB90EBB0EBC0EC8-0ECD0F180F190F350F370F390F3E0F3F0F71-0F840F860F870F90-0F970F99-0FBC0FC6102B-103E1056-1059105E-10601062-10641067-106D1071-10741082-108D108F109A-109D135F1712-17141732-1734175217531772177317B6-17D317DD180B-180D18A91920-192B1930-193B19B0-19C019C819C91A17-1A1B1A55-1A5E1A60-1A7C1A7F1B00-1B041B34-1B441B6B-1B731B80-1B821BA1-1BAA1C24-1C371CD0-1CD21CD4-1CE81CED1CF21DC0-1DE61DFD-1DFF20D0-20F02CEF-2CF12DE0-2DFF302A-302F3099309AA66F-A672A67CA67DA6F0A6F1A802A806A80BA823-A827A880A881A8B4-A8C4A8E0-A8F1A926-A92DA947-A953A980-A983A9B3-A9C0AA29-AA36AA43AA4CAA4DAA7BAAB0AAB2-AAB4AAB7AAB8AABEAABFAAC1ABE3-ABEAABECABEDFB1EFE00-FE0FFE20-FE26",
-    Mn: "0300-036F0483-04870591-05BD05BF05C105C205C405C505C70610-061A064B-065E067006D6-06DC06DF-06E406E706E806EA-06ED07110730-074A07A6-07B007EB-07F30816-0819081B-08230825-08270829-082D0900-0902093C0941-0948094D0951-095509620963098109BC09C1-09C409CD09E209E30A010A020A3C0A410A420A470A480A4B-0A4D0A510A700A710A750A810A820ABC0AC1-0AC50AC70AC80ACD0AE20AE30B010B3C0B3F0B41-0B440B4D0B560B620B630B820BC00BCD0C3E-0C400C46-0C480C4A-0C4D0C550C560C620C630CBC0CBF0CC60CCC0CCD0CE20CE30D41-0D440D4D0D620D630DCA0DD2-0DD40DD60E310E34-0E3A0E47-0E4E0EB10EB4-0EB90EBB0EBC0EC8-0ECD0F180F190F350F370F390F71-0F7E0F80-0F840F860F870F90-0F970F99-0FBC0FC6102D-10301032-10371039103A103D103E10581059105E-10601071-1074108210851086108D109D135F1712-17141732-1734175217531772177317B7-17BD17C617C9-17D317DD180B-180D18A91920-19221927192819321939-193B1A171A181A561A58-1A5E1A601A621A65-1A6C1A73-1A7C1A7F1B00-1B031B341B36-1B3A1B3C1B421B6B-1B731B801B811BA2-1BA51BA81BA91C2C-1C331C361C371CD0-1CD21CD4-1CE01CE2-1CE81CED1DC0-1DE61DFD-1DFF20D0-20DC20E120E5-20F02CEF-2CF12DE0-2DFF302A-302F3099309AA66FA67CA67DA6F0A6F1A802A806A80BA825A826A8C4A8E0-A8F1A926-A92DA947-A951A980-A982A9B3A9B6-A9B9A9BCAA29-AA2EAA31AA32AA35AA36AA43AA4CAAB0AAB2-AAB4AAB7AAB8AABEAABFAAC1ABE5ABE8ABEDFB1EFE00-FE0FFE20-FE26",
-    Mc: "0903093E-09400949-094C094E0982098309BE-09C009C709C809CB09CC09D70A030A3E-0A400A830ABE-0AC00AC90ACB0ACC0B020B030B3E0B400B470B480B4B0B4C0B570BBE0BBF0BC10BC20BC6-0BC80BCA-0BCC0BD70C01-0C030C41-0C440C820C830CBE0CC0-0CC40CC70CC80CCA0CCB0CD50CD60D020D030D3E-0D400D46-0D480D4A-0D4C0D570D820D830DCF-0DD10DD8-0DDF0DF20DF30F3E0F3F0F7F102B102C10311038103B103C105610571062-10641067-106D108310841087-108C108F109A-109C17B617BE-17C517C717C81923-19261929-192B193019311933-193819B0-19C019C819C91A19-1A1B1A551A571A611A631A641A6D-1A721B041B351B3B1B3D-1B411B431B441B821BA11BA61BA71BAA1C24-1C2B1C341C351CE11CF2A823A824A827A880A881A8B4-A8C3A952A953A983A9B4A9B5A9BAA9BBA9BD-A9C0AA2FAA30AA33AA34AA4DAA7BABE3ABE4ABE6ABE7ABE9ABEAABEC",
-    Me: "0488048906DE20DD-20E020E2-20E4A670-A672",
-    N:  "0030-003900B200B300B900BC-00BE0660-066906F0-06F907C0-07C90966-096F09E6-09EF09F4-09F90A66-0A6F0AE6-0AEF0B66-0B6F0BE6-0BF20C66-0C6F0C78-0C7E0CE6-0CEF0D66-0D750E50-0E590ED0-0ED90F20-0F331040-10491090-10991369-137C16EE-16F017E0-17E917F0-17F91810-18191946-194F19D0-19DA1A80-1A891A90-1A991B50-1B591BB0-1BB91C40-1C491C50-1C5920702074-20792080-20892150-21822185-21892460-249B24EA-24FF2776-27932CFD30073021-30293038-303A3192-31953220-32293251-325F3280-328932B1-32BFA620-A629A6E6-A6EFA830-A835A8D0-A8D9A900-A909A9D0-A9D9AA50-AA59ABF0-ABF9FF10-FF19",
-    Nd: "0030-00390660-066906F0-06F907C0-07C90966-096F09E6-09EF0A66-0A6F0AE6-0AEF0B66-0B6F0BE6-0BEF0C66-0C6F0CE6-0CEF0D66-0D6F0E50-0E590ED0-0ED90F20-0F291040-10491090-109917E0-17E91810-18191946-194F19D0-19DA1A80-1A891A90-1A991B50-1B591BB0-1BB91C40-1C491C50-1C59A620-A629A8D0-A8D9A900-A909A9D0-A9D9AA50-AA59ABF0-ABF9FF10-FF19",
-    Nl: "16EE-16F02160-21822185-218830073021-30293038-303AA6E6-A6EF",
-    No: "00B200B300B900BC-00BE09F4-09F90BF0-0BF20C78-0C7E0D70-0D750F2A-0F331369-137C17F0-17F920702074-20792080-20892150-215F21892460-249B24EA-24FF2776-27932CFD3192-31953220-32293251-325F3280-328932B1-32BFA830-A835",
-    P:  "0021-00230025-002A002C-002F003A003B003F0040005B-005D005F007B007D00A100AB00B700BB00BF037E0387055A-055F0589058A05BE05C005C305C605F305F40609060A060C060D061B061E061F066A-066D06D40700-070D07F7-07F90830-083E0964096509700DF40E4F0E5A0E5B0F04-0F120F3A-0F3D0F850FD0-0FD4104A-104F10FB1361-13681400166D166E169B169C16EB-16ED1735173617D4-17D617D8-17DA1800-180A1944194519DE19DF1A1E1A1F1AA0-1AA61AA8-1AAD1B5A-1B601C3B-1C3F1C7E1C7F1CD32010-20272030-20432045-20512053-205E207D207E208D208E2329232A2768-277527C527C627E6-27EF2983-299829D8-29DB29FC29FD2CF9-2CFC2CFE2CFF2E00-2E2E2E302E313001-30033008-30113014-301F3030303D30A030FBA4FEA4FFA60D-A60FA673A67EA6F2-A6F7A874-A877A8CEA8CFA8F8-A8FAA92EA92FA95FA9C1-A9CDA9DEA9DFAA5C-AA5FAADEAADFABEBFD3EFD3FFE10-FE19FE30-FE52FE54-FE61FE63FE68FE6AFE6BFF01-FF03FF05-FF0AFF0C-FF0FFF1AFF1BFF1FFF20FF3B-FF3DFF3FFF5BFF5DFF5F-FF65",
-    Pd: "002D058A05BE140018062010-20152E172E1A301C303030A0FE31FE32FE58FE63FF0D",
-    Ps: "0028005B007B0F3A0F3C169B201A201E2045207D208D23292768276A276C276E27702772277427C527E627E827EA27EC27EE2983298529872989298B298D298F299129932995299729D829DA29FC2E222E242E262E283008300A300C300E3010301430163018301A301DFD3EFE17FE35FE37FE39FE3BFE3DFE3FFE41FE43FE47FE59FE5BFE5DFF08FF3BFF5BFF5FFF62",
-    Pe: "0029005D007D0F3B0F3D169C2046207E208E232A2769276B276D276F27712773277527C627E727E927EB27ED27EF298429862988298A298C298E2990299229942996299829D929DB29FD2E232E252E272E293009300B300D300F3011301530173019301B301E301FFD3FFE18FE36FE38FE3AFE3CFE3EFE40FE42FE44FE48FE5AFE5CFE5EFF09FF3DFF5DFF60FF63",
-    Pi: "00AB2018201B201C201F20392E022E042E092E0C2E1C2E20",
-    Pf: "00BB2019201D203A2E032E052E0A2E0D2E1D2E21",
-    Pc: "005F203F20402054FE33FE34FE4D-FE4FFF3F",
-    Po: "0021-00230025-0027002A002C002E002F003A003B003F0040005C00A100B700BF037E0387055A-055F058905C005C305C605F305F40609060A060C060D061B061E061F066A-066D06D40700-070D07F7-07F90830-083E0964096509700DF40E4F0E5A0E5B0F04-0F120F850FD0-0FD4104A-104F10FB1361-1368166D166E16EB-16ED1735173617D4-17D617D8-17DA1800-18051807-180A1944194519DE19DF1A1E1A1F1AA0-1AA61AA8-1AAD1B5A-1B601C3B-1C3F1C7E1C7F1CD3201620172020-20272030-2038203B-203E2041-20432047-205120532055-205E2CF9-2CFC2CFE2CFF2E002E012E06-2E082E0B2E0E-2E162E182E192E1B2E1E2E1F2E2A-2E2E2E302E313001-3003303D30FBA4FEA4FFA60D-A60FA673A67EA6F2-A6F7A874-A877A8CEA8CFA8F8-A8FAA92EA92FA95FA9C1-A9CDA9DEA9DFAA5C-AA5FAADEAADFABEBFE10-FE16FE19FE30FE45FE46FE49-FE4CFE50-FE52FE54-FE57FE5F-FE61FE68FE6AFE6BFF01-FF03FF05-FF07FF0AFF0CFF0EFF0FFF1AFF1BFF1FFF20FF3CFF61FF64FF65",
-    S:  "0024002B003C-003E005E0060007C007E00A2-00A900AC00AE-00B100B400B600B800D700F702C2-02C502D2-02DF02E5-02EB02ED02EF-02FF03750384038503F604820606-0608060B060E060F06E906FD06FE07F609F209F309FA09FB0AF10B700BF3-0BFA0C7F0CF10CF20D790E3F0F01-0F030F13-0F170F1A-0F1F0F340F360F380FBE-0FC50FC7-0FCC0FCE0FCF0FD5-0FD8109E109F13601390-139917DB194019E0-19FF1B61-1B6A1B74-1B7C1FBD1FBF-1FC11FCD-1FCF1FDD-1FDF1FED-1FEF1FFD1FFE20442052207A-207C208A-208C20A0-20B8210021012103-21062108210921142116-2118211E-2123212521272129212E213A213B2140-2144214A-214D214F2190-2328232B-23E82400-24262440-244A249C-24E92500-26CD26CF-26E126E326E8-26FF2701-27042706-2709270C-27272729-274B274D274F-27522756-275E2761-276727942798-27AF27B1-27BE27C0-27C427C7-27CA27CC27D0-27E527F0-29822999-29D729DC-29FB29FE-2B4C2B50-2B592CE5-2CEA2E80-2E992E9B-2EF32F00-2FD52FF0-2FFB300430123013302030363037303E303F309B309C319031913196-319F31C0-31E33200-321E322A-32503260-327F328A-32B032C0-32FE3300-33FF4DC0-4DFFA490-A4C6A700-A716A720A721A789A78AA828-A82BA836-A839AA77-AA79FB29FDFCFDFDFE62FE64-FE66FE69FF04FF0BFF1C-FF1EFF3EFF40FF5CFF5EFFE0-FFE6FFE8-FFEEFFFCFFFD",
-    Sm: "002B003C-003E007C007E00AC00B100D700F703F60606-060820442052207A-207C208A-208C2140-2144214B2190-2194219A219B21A021A321A621AE21CE21CF21D221D421F4-22FF2308-230B23202321237C239B-23B323DC-23E125B725C125F8-25FF266F27C0-27C427C7-27CA27CC27D0-27E527F0-27FF2900-29822999-29D729DC-29FB29FE-2AFF2B30-2B442B47-2B4CFB29FE62FE64-FE66FF0BFF1C-FF1EFF5CFF5EFFE2FFE9-FFEC",
-    Sc: "002400A2-00A5060B09F209F309FB0AF10BF90E3F17DB20A0-20B8A838FDFCFE69FF04FFE0FFE1FFE5FFE6",
-    Sk: "005E006000A800AF00B400B802C2-02C502D2-02DF02E5-02EB02ED02EF-02FF0375038403851FBD1FBF-1FC11FCD-1FCF1FDD-1FDF1FED-1FEF1FFD1FFE309B309CA700-A716A720A721A789A78AFF3EFF40FFE3",
-    So: "00A600A700A900AE00B000B60482060E060F06E906FD06FE07F609FA0B700BF3-0BF80BFA0C7F0CF10CF20D790F01-0F030F13-0F170F1A-0F1F0F340F360F380FBE-0FC50FC7-0FCC0FCE0FCF0FD5-0FD8109E109F13601390-1399194019E0-19FF1B61-1B6A1B74-1B7C210021012103-21062108210921142116-2118211E-2123212521272129212E213A213B214A214C214D214F2195-2199219C-219F21A121A221A421A521A7-21AD21AF-21CD21D021D121D321D5-21F32300-2307230C-231F2322-2328232B-237B237D-239A23B4-23DB23E2-23E82400-24262440-244A249C-24E92500-25B625B8-25C025C2-25F72600-266E2670-26CD26CF-26E126E326E8-26FF2701-27042706-2709270C-27272729-274B274D274F-27522756-275E2761-276727942798-27AF27B1-27BE2800-28FF2B00-2B2F2B452B462B50-2B592CE5-2CEA2E80-2E992E9B-2EF32F00-2FD52FF0-2FFB300430123013302030363037303E303F319031913196-319F31C0-31E33200-321E322A-32503260-327F328A-32B032C0-32FE3300-33FF4DC0-4DFFA490-A4C6A828-A82BA836A837A839AA77-AA79FDFDFFE4FFE8FFEDFFEEFFFCFFFD",
-    Z:  "002000A01680180E2000-200A20282029202F205F3000",
-    Zs: "002000A01680180E2000-200A202F205F3000",
-    Zl: "2028",
-    Zp: "2029",
-    C:  "0000-001F007F-009F00AD03780379037F-0383038B038D03A20526-05300557055805600588058B-059005C8-05CF05EB-05EF05F5-0605061C061D0620065F06DD070E070F074B074C07B2-07BF07FB-07FF082E082F083F-08FF093A093B094F095609570973-097809800984098D098E0991099209A909B109B3-09B509BA09BB09C509C609C909CA09CF-09D609D8-09DB09DE09E409E509FC-0A000A040A0B-0A0E0A110A120A290A310A340A370A3A0A3B0A3D0A43-0A460A490A4A0A4E-0A500A52-0A580A5D0A5F-0A650A76-0A800A840A8E0A920AA90AB10AB40ABA0ABB0AC60ACA0ACE0ACF0AD1-0ADF0AE40AE50AF00AF2-0B000B040B0D0B0E0B110B120B290B310B340B3A0B3B0B450B460B490B4A0B4E-0B550B58-0B5B0B5E0B640B650B72-0B810B840B8B-0B8D0B910B96-0B980B9B0B9D0BA0-0BA20BA5-0BA70BAB-0BAD0BBA-0BBD0BC3-0BC50BC90BCE0BCF0BD1-0BD60BD8-0BE50BFB-0C000C040C0D0C110C290C340C3A-0C3C0C450C490C4E-0C540C570C5A-0C5F0C640C650C70-0C770C800C810C840C8D0C910CA90CB40CBA0CBB0CC50CC90CCE-0CD40CD7-0CDD0CDF0CE40CE50CF00CF3-0D010D040D0D0D110D290D3A-0D3C0D450D490D4E-0D560D58-0D5F0D640D650D76-0D780D800D810D840D97-0D990DB20DBC0DBE0DBF0DC7-0DC90DCB-0DCE0DD50DD70DE0-0DF10DF5-0E000E3B-0E3E0E5C-0E800E830E850E860E890E8B0E8C0E8E-0E930E980EA00EA40EA60EA80EA90EAC0EBA0EBE0EBF0EC50EC70ECE0ECF0EDA0EDB0EDE-0EFF0F480F6D-0F700F8C-0F8F0F980FBD0FCD0FD9-0FFF10C6-10CF10FD-10FF1249124E124F12571259125E125F1289128E128F12B112B612B712BF12C112C612C712D7131113161317135B-135E137D-137F139A-139F13F5-13FF169D-169F16F1-16FF170D1715-171F1737-173F1754-175F176D17711774-177F17B417B517DE17DF17EA-17EF17FA-17FF180F181A-181F1878-187F18AB-18AF18F6-18FF191D-191F192C-192F193C-193F1941-1943196E196F1975-197F19AC-19AF19CA-19CF19DB-19DD1A1C1A1D1A5F1A7D1A7E1A8A-1A8F1A9A-1A9F1AAE-1AFF1B4C-1B4F1B7D-1B7F1BAB-1BAD1BBA-1BFF1C38-1C3A1C4A-1C4C1C80-1CCF1CF3-1CFF1DE7-1DFC1F161F171F1E1F1F1F461F471F4E1F4F1F581F5A1F5C1F5E1F7E1F7F1FB51FC51FD41FD51FDC1FF01FF11FF51FFF200B-200F202A-202E2060-206F20722073208F2095-209F20B9-20CF20F1-20FF218A-218F23E9-23FF2427-243F244B-245F26CE26E226E4-26E727002705270A270B2728274C274E2753-2755275F27602795-279727B027BF27CB27CD-27CF2B4D-2B4F2B5A-2BFF2C2F2C5F2CF2-2CF82D26-2D2F2D66-2D6E2D70-2D7F2D97-2D9F2DA72DAF2DB72DBF2DC72DCF2DD72DDF2E32-2E7F2E9A2EF4-2EFF2FD6-2FEF2FFC-2FFF3040309730983100-3104312E-3130318F31B8-31BF31E4-31EF321F32FF4DB6-4DBF9FCC-9FFFA48D-A48FA4C7-A4CFA62C-A63FA660A661A674-A67BA698-A69FA6F8-A6FFA78D-A7FAA82C-A82FA83A-A83FA878-A87FA8C5-A8CDA8DA-A8DFA8FC-A8FFA954-A95EA97D-A97FA9CEA9DA-A9DDA9E0-A9FFAA37-AA3FAA4EAA4FAA5AAA5BAA7C-AA7FAAC3-AADAAAE0-ABBFABEEABEFABFA-ABFFD7A4-D7AFD7C7-D7CAD7FC-F8FFFA2EFA2FFA6EFA6FFADA-FAFFFB07-FB12FB18-FB1CFB37FB3DFB3FFB42FB45FBB2-FBD2FD40-FD4FFD90FD91FDC8-FDEFFDFEFDFFFE1A-FE1FFE27-FE2FFE53FE67FE6C-FE6FFE75FEFD-FF00FFBF-FFC1FFC8FFC9FFD0FFD1FFD8FFD9FFDD-FFDFFFE7FFEF-FFFBFFFEFFFF",
-    Cc: "0000-001F007F-009F",
-    Cf: "00AD0600-060306DD070F17B417B5200B-200F202A-202E2060-2064206A-206FFEFFFFF9-FFFB",
-    Co: "E000-F8FF",
-    Cs: "D800-DFFF",
-    Cn: "03780379037F-0383038B038D03A20526-05300557055805600588058B-059005C8-05CF05EB-05EF05F5-05FF06040605061C061D0620065F070E074B074C07B2-07BF07FB-07FF082E082F083F-08FF093A093B094F095609570973-097809800984098D098E0991099209A909B109B3-09B509BA09BB09C509C609C909CA09CF-09D609D8-09DB09DE09E409E509FC-0A000A040A0B-0A0E0A110A120A290A310A340A370A3A0A3B0A3D0A43-0A460A490A4A0A4E-0A500A52-0A580A5D0A5F-0A650A76-0A800A840A8E0A920AA90AB10AB40ABA0ABB0AC60ACA0ACE0ACF0AD1-0ADF0AE40AE50AF00AF2-0B000B040B0D0B0E0B110B120B290B310B340B3A0B3B0B450B460B490B4A0B4E-0B550B58-0B5B0B5E0B640B650B72-0B810B840B8B-0B8D0B910B96-0B980B9B0B9D0BA0-0BA20BA5-0BA70BAB-0BAD0BBA-0BBD0BC3-0BC50BC90BCE0BCF0BD1-0BD60BD8-0BE50BFB-0C000C040C0D0C110C290C340C3A-0C3C0C450C490C4E-0C540C570C5A-0C5F0C640C650C70-0C770C800C810C840C8D0C910CA90CB40CBA0CBB0CC50CC90CCE-0CD40CD7-0CDD0CDF0CE40CE50CF00CF3-0D010D040D0D0D110D290D3A-0D3C0D450D490D4E-0D560D58-0D5F0D640D650D76-0D780D800D810D840D97-0D990DB20DBC0DBE0DBF0DC7-0DC90DCB-0DCE0DD50DD70DE0-0DF10DF5-0E000E3B-0E3E0E5C-0E800E830E850E860E890E8B0E8C0E8E-0E930E980EA00EA40EA60EA80EA90EAC0EBA0EBE0EBF0EC50EC70ECE0ECF0EDA0EDB0EDE-0EFF0F480F6D-0F700F8C-0F8F0F980FBD0FCD0FD9-0FFF10C6-10CF10FD-10FF1249124E124F12571259125E125F1289128E128F12B112B612B712BF12C112C612C712D7131113161317135B-135E137D-137F139A-139F13F5-13FF169D-169F16F1-16FF170D1715-171F1737-173F1754-175F176D17711774-177F17DE17DF17EA-17EF17FA-17FF180F181A-181F1878-187F18AB-18AF18F6-18FF191D-191F192C-192F193C-193F1941-1943196E196F1975-197F19AC-19AF19CA-19CF19DB-19DD1A1C1A1D1A5F1A7D1A7E1A8A-1A8F1A9A-1A9F1AAE-1AFF1B4C-1B4F1B7D-1B7F1BAB-1BAD1BBA-1BFF1C38-1C3A1C4A-1C4C1C80-1CCF1CF3-1CFF1DE7-1DFC1F161F171F1E1F1F1F461F471F4E1F4F1F581F5A1F5C1F5E1F7E1F7F1FB51FC51FD41FD51FDC1FF01FF11FF51FFF2065-206920722073208F2095-209F20B9-20CF20F1-20FF218A-218F23E9-23FF2427-243F244B-245F26CE26E226E4-26E727002705270A270B2728274C274E2753-2755275F27602795-279727B027BF27CB27CD-27CF2B4D-2B4F2B5A-2BFF2C2F2C5F2CF2-2CF82D26-2D2F2D66-2D6E2D70-2D7F2D97-2D9F2DA72DAF2DB72DBF2DC72DCF2DD72DDF2E32-2E7F2E9A2EF4-2EFF2FD6-2FEF2FFC-2FFF3040309730983100-3104312E-3130318F31B8-31BF31E4-31EF321F32FF4DB6-4DBF9FCC-9FFFA48D-A48FA4C7-A4CFA62C-A63FA660A661A674-A67BA698-A69FA6F8-A6FFA78D-A7FAA82C-A82FA83A-A83FA878-A87FA8C5-A8CDA8DA-A8DFA8FC-A8FFA954-A95EA97D-A97FA9CEA9DA-A9DDA9E0-A9FFAA37-AA3FAA4EAA4FAA5AAA5BAA7C-AA7FAAC3-AADAAAE0-ABBFABEEABEFABFA-ABFFD7A4-D7AFD7C7-D7CAD7FC-D7FFFA2EFA2FFA6EFA6FFADA-FAFFFB07-FB12FB18-FB1CFB37FB3DFB3FFB42FB45FBB2-FBD2FD40-FD4FFD90FD91FDC8-FDEFFDFEFDFFFE1A-FE1FFE27-FE2FFE53FE67FE6C-FE6FFE75FEFDFEFEFF00FFBF-FFC1FFC8FFC9FFD0FFD1FFD8FFD9FFDD-FFDFFFE7FFEF-FFF8FFFEFFFF"
-});
-
-function addUnicodePackage (pack) {
-    var codePoint = /\w{4}/g;
-    for (var name in pack)
-        exports.packages[name] = pack[name].replace(codePoint, "\\u$&");
-}
-
-});
-
-ace.define("ace/token_iterator",["require","exports","module"], function(require, exports, module) {
-"use strict";
-var TokenIterator = function(session, initialRow, initialColumn) {
-    this.$session = session;
-    this.$row = initialRow;
-    this.$rowTokens = session.getTokens(initialRow);
-
-    var token = session.getTokenAt(initialRow, initialColumn);
-    this.$tokenIndex = token ? token.index : -1;
-};
-
-(function() {
-    this.stepBackward = function() {
-        this.$tokenIndex -= 1;
-
-        while (this.$tokenIndex < 0) {
-            this.$row -= 1;
-            if (this.$row < 0) {
-                this.$row = 0;
-                return null;
-            }
-
-            this.$rowTokens = this.$session.getTokens(this.$row);
-            this.$tokenIndex = this.$rowTokens.length - 1;
-        }
-
-        return this.$rowTokens[this.$tokenIndex];
-    };
-    this.stepForward = function() {
-        this.$tokenIndex += 1;
-        var rowCount;
-        while (this.$tokenIndex >= this.$rowTokens.length) {
-            this.$row += 1;
-            if (!rowCount)
-                rowCount = this.$session.getLength();
-            if (this.$row >= rowCount) {
-                this.$row = rowCount - 1;
-                return null;
-            }
-
-            this.$rowTokens = this.$session.getTokens(this.$row);
-            this.$tokenIndex = 0;
-        }
-
-        return this.$rowTokens[this.$tokenIndex];
-    };
-    this.getCurrentToken = function () {
-        return this.$rowTokens[this.$tokenIndex];
-    };
-    this.getCurrentTokenRow = function () {
-        return this.$row;
-    };
-    this.getCurrentTokenColumn = function() {
-        var rowTokens = this.$rowTokens;
-        var tokenIndex = this.$tokenIndex;
-        var column = rowTokens[tokenIndex].start;
-        if (column !== undefined)
-            return column;
-
-        column = 0;
-        while (tokenIndex > 0) {
-            tokenIndex -= 1;
-            column += rowTokens[tokenIndex].value.length;
-        }
-
-        return column;
-    };
-    this.getCurrentTokenPosition = function() {
-        return {row: this.$row, column: this.getCurrentTokenColumn()};
-    };
-
-}).call(TokenIterator.prototype);
-
-exports.TokenIterator = TokenIterator;
-});
-
-ace.define("ace/mode/text",["require","exports","module","ace/tokenizer","ace/mode/text_highlight_rules","ace/mode/behaviour","ace/unicode","ace/lib/lang","ace/token_iterator","ace/range"], function(require, exports, module) {
-"use strict";
-
-var Tokenizer = require("../tokenizer").Tokenizer;
-var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
-var Behaviour = require("./behaviour").Behaviour;
-var unicode = require("../unicode");
-var lang = require("../lib/lang");
-var TokenIterator = require("../token_iterator").TokenIterator;
-var Range = require("../range").Range;
-
-var Mode = function() {
-    this.HighlightRules = TextHighlightRules;
-    this.$behaviour = new Behaviour();
-};
-
-(function() {
-
-    this.tokenRe = new RegExp("^["
-        + unicode.packages.L
-        + unicode.packages.Mn + unicode.packages.Mc
-        + unicode.packages.Nd
-        + unicode.packages.Pc + "\\$_]+", "g"
-    );
-
-    this.nonTokenRe = new RegExp("^(?:[^"
-        + unicode.packages.L
-        + unicode.packages.Mn + unicode.packages.Mc
-        + unicode.packages.Nd
-        + unicode.packages.Pc + "\\$_]|\\s])+", "g"
-    );
-
-    this.getTokenizer = function() {
-        if (!this.$tokenizer) {
-            this.$highlightRules = this.$highlightRules || new this.HighlightRules();
-            this.$tokenizer = new Tokenizer(this.$highlightRules.getRules());
-        }
-        return this.$tokenizer;
-    };
-
-    this.lineCommentStart = "";
-    this.blockComment = "";
-
-    this.toggleCommentLines = function(state, session, startRow, endRow) {
-        var doc = session.doc;
-
-        var ignoreBlankLines = true;
-        var shouldRemove = true;
-        var minIndent = Infinity;
-        var tabSize = session.getTabSize();
-        var insertAtTabStop = false;
-
-        if (!this.lineCommentStart) {
-            if (!this.blockComment)
-                return false;
-            var lineCommentStart = this.blockComment.start;
-            var lineCommentEnd = this.blockComment.end;
-            var regexpStart = new RegExp("^(\\s*)(?:" + lang.escapeRegExp(lineCommentStart) + ")");
-            var regexpEnd = new RegExp("(?:" + lang.escapeRegExp(lineCommentEnd) + ")\\s*$");
-
-            var comment = function(line, i) {
-                if (testRemove(line, i))
-                    return;
-                if (!ignoreBlankLines || /\S/.test(line)) {
-                    doc.insertInLine({row: i, column: line.length}, lineCommentEnd);
-                    doc.insertInLine({row: i, column: minIndent}, lineCommentStart);
-                }
-            };
-
-            var uncomment = function(line, i) {
-                var m;
-                if (m = line.match(regexpEnd))
-                    doc.removeInLine(i, line.length - m[0].length, line.length);
-                if (m = line.match(regexpStart))
-                    doc.removeInLine(i, m[1].length, m[0].length);
-            };
-
-            var testRemove = function(line, row) {
-                if (regexpStart.test(line))
-                    return true;
-                var tokens = session.getTokens(row);
-                for (var i = 0; i < tokens.length; i++) {
-                    if (tokens[i].type === "comment")
-                        return true;
-                }
-            };
-        } else {
-            if (Array.isArray(this.lineCommentStart)) {
-                var regexpStart = this.lineCommentStart.map(lang.escapeRegExp).join("|");
-                var lineCommentStart = this.lineCommentStart[0];
-            } else {
-                var regexpStart = lang.escapeRegExp(this.lineCommentStart);
-                var lineCommentStart = this.lineCommentStart;
-            }
-            regexpStart = new RegExp("^(\\s*)(?:" + regexpStart + ") ?");
-
-            insertAtTabStop = session.getUseSoftTabs();
-
-            var uncomment = function(line, i) {
-                var m = line.match(regexpStart);
-                if (!m) return;
-                var start = m[1].length, end = m[0].length;
-                if (!shouldInsertSpace(line, start, end) && m[0][end - 1] == " ")
-                    end--;
-                doc.removeInLine(i, start, end);
-            };
-            var commentWithSpace = lineCommentStart + " ";
-            var comment = function(line, i) {
-                if (!ignoreBlankLines || /\S/.test(line)) {
-                    if (shouldInsertSpace(line, minIndent, minIndent))
-                        doc.insertInLine({row: i, column: minIndent}, commentWithSpace);
-                    else
-                        doc.insertInLine({row: i, column: minIndent}, lineCommentStart);
-                }
-            };
-            var testRemove = function(line, i) {
-                return regexpStart.test(line);
-            };
-
-            var shouldInsertSpace = function(line, before, after) {
-                var spaces = 0;
-                while (before-- && line.charAt(before) == " ")
-                    spaces++;
-                if (spaces % tabSize != 0)
-                    return false;
-                var spaces = 0;
-                while (line.charAt(after++) == " ")
-                    spaces++;
-                if (tabSize > 2)
-                    return spaces % tabSize != tabSize - 1;
-                else
-                    return spaces % tabSize == 0;
-                return true;
-            };
-        }
-
-        function iter(fun) {
-            for (var i = startRow; i <= endRow; i++)
-                fun(doc.getLine(i), i);
-        }
-
-
-        var minEmptyLength = Infinity;
-        iter(function(line, i) {
-            var indent = line.search(/\S/);
-            if (indent !== -1) {
-                if (indent < minIndent)
-                    minIndent = indent;
-                if (shouldRemove && !testRemove(line, i))
-                    shouldRemove = false;
-            } else if (minEmptyLength > line.length) {
-                minEmptyLength = line.length;
-            }
-        });
-
-        if (minIndent == Infinity) {
-            minIndent = minEmptyLength;
-            ignoreBlankLines = false;
-            shouldRemove = false;
-        }
-
-        if (insertAtTabStop && minIndent % tabSize != 0)
-            minIndent = Math.floor(minIndent / tabSize) * tabSize;
-
-        iter(shouldRemove ? uncomment : comment);
-    };
-
-    this.toggleBlockComment = function(state, session, range, cursor) {
-        var comment = this.blockComment;
-        if (!comment)
-            return;
-        if (!comment.start && comment[0])
-            comment = comment[0];
-
-        var iterator = new TokenIterator(session, cursor.row, cursor.column);
-        var token = iterator.getCurrentToken();
-
-        var sel = session.selection;
-        var initialRange = session.selection.toOrientedRange();
-        var startRow, colDiff;
-
-        if (token && /comment/.test(token.type)) {
-            var startRange, endRange;
-            while (token && /comment/.test(token.type)) {
-                var i = token.value.indexOf(comment.start);
-                if (i != -1) {
-                    var row = iterator.getCurrentTokenRow();
-                    var column = iterator.getCurrentTokenColumn() + i;
-                    startRange = new Range(row, column, row, column + comment.start.length);
-                    break;
-                }
-                token = iterator.stepBackward();
-            }
-
-            var iterator = new TokenIterator(session, cursor.row, cursor.column);
-            var token = iterator.getCurrentToken();
-            while (token && /comment/.test(token.type)) {
-                var i = token.value.indexOf(comment.end);
-                if (i != -1) {
-                    var row = iterator.getCurrentTokenRow();
-                    var column = iterator.getCurrentTokenColumn() + i;
-                    endRange = new Range(row, column, row, column + comment.end.length);
-                    break;
-                }
-                token = iterator.stepForward();
-            }
-            if (endRange)
-                session.remove(endRange);
-            if (startRange) {
-                session.remove(startRange);
-                startRow = startRange.start.row;
-                colDiff = -comment.start.length;
-            }
-        } else {
-            colDiff = comment.start.length;
-            startRow = range.start.row;
-            session.insert(range.end, comment.end);
-            session.insert(range.start, comment.start);
-        }
-        if (initialRange.start.row == startRow)
-            initialRange.start.column += colDiff;
-        if (initialRange.end.row == startRow)
-            initialRange.end.column += colDiff;
-        session.selection.fromOrientedRange(initialRange);
-    };
-
-    this.getNextLineIndent = function(state, line, tab) {
-        return this.$getIndent(line);
-    };
-
-    this.checkOutdent = function(state, line, input) {
-        return false;
-    };
-
-    this.autoOutdent = function(state, doc, row) {
-    };
-
-    this.$getIndent = function(line) {
-        return line.match(/^\s*/)[0];
-    };
-
-    this.createWorker = function(session) {
-        return null;
-    };
-
-    this.createModeDelegates = function (mapping) {
-        this.$embeds = [];
-        this.$modes = {};
-        for (var i in mapping) {
-            if (mapping[i]) {
-                this.$embeds.push(i);
-                this.$modes[i] = new mapping[i]();
-            }
-        }
-
-        var delegations = ["toggleBlockComment", "toggleCommentLines", "getNextLineIndent",
-            "checkOutdent", "autoOutdent", "transformAction", "getCompletions"];
-
-        for (var i = 0; i < delegations.length; i++) {
-            (function(scope) {
-              var functionName = delegations[i];
-              var defaultHandler = scope[functionName];
-              scope[delegations[i]] = function() {
-                  return this.$delegator(functionName, arguments, defaultHandler);
-              };
-            }(this));
-        }
-    };
-
-    this.$delegator = function(method, args, defaultHandler) {
-        var state = args[0];
-        if (typeof state != "string")
-            state = state[0];
-        for (var i = 0; i < this.$embeds.length; i++) {
-            if (!this.$modes[this.$embeds[i]]) continue;
-
-            var split = state.split(this.$embeds[i]);
-            if (!split[0] && split[1]) {
-                args[0] = split[1];
-                var mode = this.$modes[this.$embeds[i]];
-                return mode[method].apply(mode, args);
-            }
-        }
-        var ret = defaultHandler.apply(this, args);
-        return defaultHandler ? ret : undefined;
-    };
-
-    this.transformAction = function(state, action, editor, session, param) {
-        if (this.$behaviour) {
-            var behaviours = this.$behaviour.getBehaviours();
-            for (var key in behaviours) {
-                if (behaviours[key][action]) {
-                    var ret = behaviours[key][action].apply(this, arguments);
-                    if (ret) {
-                        return ret;
-                    }
-                }
-            }
-        }
-    };
-
-    this.getKeywords = function(append) {
-        if (!this.completionKeywords) {
-            var rules = this.$tokenizer.rules;
-            var completionKeywords = [];
-            for (var rule in rules) {
-                var ruleItr = rules[rule];
-                for (var r = 0, l = ruleItr.length; r < l; r++) {
-                    if (typeof ruleItr[r].token === "string") {
-                        if (/keyword|support|storage/.test(ruleItr[r].token))
-                            completionKeywords.push(ruleItr[r].regex);
-                    }
-                    else if (typeof ruleItr[r].token === "object") {
-                        for (var a = 0, aLength = ruleItr[r].token.length; a < aLength; a++) {
-                            if (/keyword|support|storage/.test(ruleItr[r].token[a])) {
-                                var rule = ruleItr[r].regex.match(/\(.+?\)/g)[a];
-                                completionKeywords.push(rule.substr(1, rule.length - 2));
-                            }
-                        }
-                    }
-                }
-            }
-            this.completionKeywords = completionKeywords;
-        }
-        if (!append)
-            return this.$keywordList;
-        return completionKeywords.concat(this.$keywordList || []);
-    };
-
-    this.$createKeywordList = function() {
-        if (!this.$highlightRules)
-            this.getTokenizer();
-        return this.$keywordList = this.$highlightRules.$keywordList || [];
-    };
-
-    this.getCompletions = function(state, session, pos, prefix) {
-        var keywords = this.$keywordList || this.$createKeywordList();
-        return keywords.map(function(word) {
-            return {
-                name: word,
-                value: word,
-                score: 0,
-                meta: "keyword"
-            };
-        });
-    };
-
-    this.$id = "ace/mode/text";
-}).call(Mode.prototype);
-
-exports.Mode = Mode;
-});
-
-ace.define("ace/apply_delta",["require","exports","module"], function(require, exports, module) {
-"use strict";
-
-function throwDeltaError(delta, errorText){
-    console.log("Invalid Delta:", delta);
-    throw "Invalid Delta: " + errorText;
-}
-
-function positionInDocument(docLines, position) {
-    return position.row    >= 0 && position.row    <  docLines.length &&
-           position.column >= 0 && position.column <= docLines[position.row].length;
-}
-
-function validateDelta(docLines, delta) {
-    if (delta.action != "insert" && delta.action != "remove")
-        throwDeltaError(delta, "delta.action must be 'insert' or 'remove'");
-    if (!(delta.lines instanceof Array))
-        throwDeltaError(delta, "delta.lines must be an Array");
-    if (!delta.start || !delta.end)
-       throwDeltaError(delta, "delta.start/end must be an present");
-    var start = delta.start;
-    if (!positionInDocument(docLines, delta.start))
-        throwDeltaError(delta, "delta.start must be contained in document");
-    var end = delta.end;
-    if (delta.action == "remove" && !positionInDocument(docLines, end))
-        throwDeltaError(delta, "delta.end must contained in document for 'remove' actions");
-    var numRangeRows = end.row - start.row;
-    var numRangeLastLineChars = (end.column - (numRangeRows == 0 ? start.column : 0));
-    if (numRangeRows != delta.lines.length - 1 || delta.lines[numRangeRows].length != numRangeLastLineChars)
-        throwDeltaError(delta, "delta.range must match delta lines");
-}
-
-exports.applyDelta = function(docLines, delta, doNotValidate) {
-
-    var row = delta.start.row;
-    var startColumn = delta.start.column;
-    var line = docLines[row] || "";
-    switch (delta.action) {
-        case "insert":
-            var lines = delta.lines;
-            if (lines.length === 1) {
-                docLines[row] = line.substring(0, startColumn) + delta.lines[0] + line.substring(startColumn);
-            } else {
-                var args = [row, 1].concat(delta.lines);
-                docLines.splice.apply(docLines, args);
-                docLines[row] = line.substring(0, startColumn) + docLines[row];
-                docLines[row + delta.lines.length - 1] += line.substring(startColumn);
-            }
-            break;
-        case "remove":
-            var endColumn = delta.end.column;
-            var endRow = delta.end.row;
-            if (row === endRow) {
-                docLines[row] = line.substring(0, startColumn) + line.substring(endColumn);
-            } else {
-                docLines.splice(
-                    row, endRow - row + 1,
-                    line.substring(0, startColumn) + docLines[endRow].substring(endColumn)
-                );
-            }
-            break;
-    }
-}
-});
-
-ace.define("ace/anchor",["require","exports","module","ace/lib/oop","ace/lib/event_emitter"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-
-var Anchor = exports.Anchor = function(doc, row, column) {
-    this.$onChange = this.onChange.bind(this);
-    this.attach(doc);
-
-    if (typeof column == "undefined")
-        this.setPosition(row.row, row.column);
-    else
-        this.setPosition(row, column);
-};
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-    this.getPosition = function() {
-        return this.$clipPositionToDocument(this.row, this.column);
-    };
-    this.getDocument = function() {
-        return this.document;
-    };
-    this.$insertRight = false;
-    this.onChange = function(delta) {
-        if (delta.start.row == delta.end.row && delta.start.row != this.row)
-            return;
-
-        if (delta.start.row > this.row)
-            return;
-
-        var point = $getTransformedPoint(delta, {row: this.row, column: this.column}, this.$insertRight);
-        this.setPosition(point.row, point.column, true);
-    };
-
-    function $pointsInOrder(point1, point2, equalPointsInOrder) {
-        var bColIsAfter = equalPointsInOrder ? point1.column <= point2.column : point1.column < point2.column;
-        return (point1.row < point2.row) || (point1.row == point2.row && bColIsAfter);
-    }
-
-    function $getTransformedPoint(delta, point, moveIfEqual) {
-        var deltaIsInsert = delta.action == "insert";
-        var deltaRowShift = (deltaIsInsert ? 1 : -1) * (delta.end.row    - delta.start.row);
-        var deltaColShift = (deltaIsInsert ? 1 : -1) * (delta.end.column - delta.start.column);
-        var deltaStart = delta.start;
-        var deltaEnd = deltaIsInsert ? deltaStart : delta.end; // Collapse insert range.
-        if ($pointsInOrder(point, deltaStart, moveIfEqual)) {
-            return {
-                row: point.row,
-                column: point.column
-            };
-        }
-        if ($pointsInOrder(deltaEnd, point, !moveIfEqual)) {
-            return {
-                row: point.row + deltaRowShift,
-                column: point.column + (point.row == deltaEnd.row ? deltaColShift : 0)
-            };
-        }
-
-        return {
-            row: deltaStart.row,
-            column: deltaStart.column
-        };
-    }
-    this.setPosition = function(row, column, noClip) {
-        var pos;
-        if (noClip) {
-            pos = {
-                row: row,
-                column: column
-            };
-        } else {
-            pos = this.$clipPositionToDocument(row, column);
-        }
-
-        if (this.row == pos.row && this.column == pos.column)
-            return;
-
-        var old = {
-            row: this.row,
-            column: this.column
-        };
-
-        this.row = pos.row;
-        this.column = pos.column;
-        this._signal("change", {
-            old: old,
-            value: pos
-        });
-    };
-    this.detach = function() {
-        this.document.removeEventListener("change", this.$onChange);
-    };
-    this.attach = function(doc) {
-        this.document = doc || this.document;
-        this.document.on("change", this.$onChange);
-    };
-    this.$clipPositionToDocument = function(row, column) {
-        var pos = {};
-
-        if (row >= this.document.getLength()) {
-            pos.row = Math.max(0, this.document.getLength() - 1);
-            pos.column = this.document.getLine(pos.row).length;
-        }
-        else if (row < 0) {
-            pos.row = 0;
-            pos.column = 0;
-        }
-        else {
-            pos.row = row;
-            pos.column = Math.min(this.document.getLine(pos.row).length, Math.max(0, column));
-        }
-
-        if (column < 0)
-            pos.column = 0;
-
-        return pos;
-    };
-
-}).call(Anchor.prototype);
-
-});
-
-ace.define("ace/document",["require","exports","module","ace/lib/oop","ace/apply_delta","ace/lib/event_emitter","ace/range","ace/anchor"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var applyDelta = require("./apply_delta").applyDelta;
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-var Range = require("./range").Range;
-var Anchor = require("./anchor").Anchor;
-
-var Document = function(textOrLines) {
-    this.$lines = [""];
-    if (textOrLines.length === 0) {
-        this.$lines = [""];
-    } else if (Array.isArray(textOrLines)) {
-        this.insertMergedLines({row: 0, column: 0}, textOrLines);
-    } else {
-        this.insert({row: 0, column:0}, textOrLines);
-    }
-};
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-    this.setValue = function(text) {
-        var len = this.getLength() - 1;
-        this.remove(new Range(0, 0, len, this.getLine(len).length));
-        this.insert({row: 0, column: 0}, text);
-    };
-    this.getValue = function() {
-        return this.getAllLines().join(this.getNewLineCharacter());
-    };
-    this.createAnchor = function(row, column) {
-        return new Anchor(this, row, column);
-    };
-    if ("aaa".split(/a/).length === 0) {
-        this.$split = function(text) {
-            return text.replace(/\r\n|\r/g, "\n").split("\n");
-        };
-    } else {
-        this.$split = function(text) {
-            return text.split(/\r\n|\r|\n/);
-        };
-    }
-
-
-    this.$detectNewLine = function(text) {
-        var match = text.match(/^.*?(\r\n|\r|\n)/m);
-        this.$autoNewLine = match ? match[1] : "\n";
-        this._signal("changeNewLineMode");
-    };
-    this.getNewLineCharacter = function() {
-        switch (this.$newLineMode) {
-          case "windows":
-            return "\r\n";
-          case "unix":
-            return "\n";
-          default:
-            return this.$autoNewLine || "\n";
-        }
-    };
-
-    this.$autoNewLine = "";
-    this.$newLineMode = "auto";
-    this.setNewLineMode = function(newLineMode) {
-        if (this.$newLineMode === newLineMode)
-            return;
-
-        this.$newLineMode = newLineMode;
-        this._signal("changeNewLineMode");
-    };
-    this.getNewLineMode = function() {
-        return this.$newLineMode;
-    };
-    this.isNewLine = function(text) {
-        return (text == "\r\n" || text == "\r" || text == "\n");
-    };
-    this.getLine = function(row) {
-        return this.$lines[row] || "";
-    };
-    this.getLines = function(firstRow, lastRow) {
-        return this.$lines.slice(firstRow, lastRow + 1);
-    };
-    this.getAllLines = function() {
-        return this.getLines(0, this.getLength());
-    };
-    this.getLength = function() {
-        return this.$lines.length;
-    };
-    this.getTextRange = function(range) {
-        return this.getLinesForRange(range).join(this.getNewLineCharacter());
-    };
-    this.getLinesForRange = function(range) {
-        var lines;
-        if (range.start.row === range.end.row) {
-            lines = [this.getLine(range.start.row).substring(range.start.column, range.end.column)];
-        } else {
-            lines = this.getLines(range.start.row, range.end.row);
-            lines[0] = (lines[0] || "").substring(range.start.column);
-            var l = lines.length - 1;
-            if (range.end.row - range.start.row == l)
-                lines[l] = lines[l].substring(0, range.end.column);
-        }
-        return lines;
-    };
-    this.insertLines = function(row, lines) {
-        console.warn("Use of document.insertLines is deprecated. Use the insertFullLines method instead.");
-        return this.insertFullLines(row, lines);
-    };
-    this.removeLines = function(firstRow, lastRow) {
-        console.warn("Use of document.removeLines is deprecated. Use the removeFullLines method instead.");
-        return this.removeFullLines(firstRow, lastRow);
-    };
-    this.insertNewLine = function(position) {
-        console.warn("Use of document.insertNewLine is deprecated. Use insertMergedLines(position, [\'\', \'\']) instead.");
-        return this.insertMergedLines(position, ["", ""]);
-    };
-    this.insert = function(position, text) {
-        if (this.getLength() <= 1)
-            this.$detectNewLine(text);
-
-        return this.insertMergedLines(position, this.$split(text));
-    };
-    this.insertInLine = function(position, text) {
-        var start = this.clippedPos(position.row, position.column);
-        var end = this.pos(position.row, position.column + text.length);
-
-        this.applyDelta({
-            start: start,
-            end: end,
-            action: "insert",
-            lines: [text]
-        }, true);
-
-        return this.clonePos(end);
-    };
-
-    this.clippedPos = function(row, column) {
-        var length = this.getLength();
-        if (row === undefined) {
-            row = length;
-        } else if (row < 0) {
-            row = 0;
-        } else if (row >= length) {
-            row = length - 1;
-            column = undefined;
-        }
-        var line = this.getLine(row);
-        if (column == undefined)
-            column = line.length;
-        column = Math.min(Math.max(column, 0), line.length);
-        return {row: row, column: column};
-    };
-
-    this.clonePos = function(pos) {
-        return {row: pos.row, column: pos.column};
-    };
-
-    this.pos = function(row, column) {
-        return {row: row, column: column};
-    };
-
-    this.$clipPosition = function(position) {
-        var length = this.getLength();
-        if (position.row >= length) {
-            position.row = Math.max(0, length - 1);
-            position.column = this.getLine(length - 1).length;
-        } else {
-            position.row = Math.max(0, position.row);
-            position.column = Math.min(Math.max(position.column, 0), this.getLine(position.row).length);
-        }
-        return position;
-    };
-    this.insertFullLines = function(row, lines) {
-        row = Math.min(Math.max(row, 0), this.getLength());
-        var column = 0;
-        if (row < this.getLength()) {
-            lines = lines.concat([""]);
-            column = 0;
-        } else {
-            lines = [""].concat(lines);
-            row--;
-            column = this.$lines[row].length;
-        }
-        this.insertMergedLines({row: row, column: column}, lines);
-    };
-    this.insertMergedLines = function(position, lines) {
-        var start = this.clippedPos(position.row, position.column);
-        var end = {
-            row: start.row + lines.length - 1,
-            column: (lines.length == 1 ? start.column : 0) + lines[lines.length - 1].length
-        };
-
-        this.applyDelta({
-            start: start,
-            end: end,
-            action: "insert",
-            lines: lines
-        });
-
-        return this.clonePos(end);
-    };
-    this.remove = function(range) {
-        var start = this.clippedPos(range.start.row, range.start.column);
-        var end = this.clippedPos(range.end.row, range.end.column);
-        this.applyDelta({
-            start: start,
-            end: end,
-            action: "remove",
-            lines: this.getLinesForRange({start: start, end: end})
-        });
-        return this.clonePos(start);
-    };
-    this.removeInLine = function(row, startColumn, endColumn) {
-        var start = this.clippedPos(row, startColumn);
-        var end = this.clippedPos(row, endColumn);
-
-        this.applyDelta({
-            start: start,
-            end: end,
-            action: "remove",
-            lines: this.getLinesForRange({start: start, end: end})
-        }, true);
-
-        return this.clonePos(start);
-    };
-    this.removeFullLines = function(firstRow, lastRow) {
-        firstRow = Math.min(Math.max(0, firstRow), this.getLength() - 1);
-        lastRow  = Math.min(Math.max(0, lastRow ), this.getLength() - 1);
-        var deleteFirstNewLine = lastRow == this.getLength() - 1 && firstRow > 0;
-        var deleteLastNewLine  = lastRow  < this.getLength() - 1;
-        var startRow = ( deleteFirstNewLine ? firstRow - 1                  : firstRow                    );
-        var startCol = ( deleteFirstNewLine ? this.getLine(startRow).length : 0                           );
-        var endRow   = ( deleteLastNewLine  ? lastRow + 1                   : lastRow                     );
-        var endCol   = ( deleteLastNewLine  ? 0                             : this.getLine(endRow).length );
-        var range = new Range(startRow, startCol, endRow, endCol);
-        var deletedLines = this.$lines.slice(firstRow, lastRow + 1);
-
-        this.applyDelta({
-            start: range.start,
-            end: range.end,
-            action: "remove",
-            lines: this.getLinesForRange(range)
-        });
-        return deletedLines;
-    };
-    this.removeNewLine = function(row) {
-        if (row < this.getLength() - 1 && row >= 0) {
-            this.applyDelta({
-                start: this.pos(row, this.getLine(row).length),
-                end: this.pos(row + 1, 0),
-                action: "remove",
-                lines: ["", ""]
-            });
-        }
-    };
-    this.replace = function(range, text) {
-        if (!(range instanceof Range))
-            range = Range.fromPoints(range.start, range.end);
-        if (text.length === 0 && range.isEmpty())
-            return range.start;
-        if (text == this.getTextRange(range))
-            return range.end;
-
-        this.remove(range);
-        var end;
-        if (text) {
-            end = this.insert(range.start, text);
-        }
-        else {
-            end = range.start;
-        }
-
-        return end;
-    };
-    this.applyDeltas = function(deltas) {
-        for (var i=0; i<deltas.length; i++) {
-            this.applyDelta(deltas[i]);
-        }
-    };
-    this.revertDeltas = function(deltas) {
-        for (var i=deltas.length-1; i>=0; i--) {
-            this.revertDelta(deltas[i]);
-        }
-    };
-    this.applyDelta = function(delta, doNotValidate) {
-        var isInsert = delta.action == "insert";
-        if (isInsert ? delta.lines.length <= 1 && !delta.lines[0]
-            : !Range.comparePoints(delta.start, delta.end)) {
-            return;
-        }
-
-        if (isInsert && delta.lines.length > 20000)
-            this.$splitAndapplyLargeDelta(delta, 20000);
-        applyDelta(this.$lines, delta, doNotValidate);
-        this._signal("change", delta);
-    };
-
-    this.$splitAndapplyLargeDelta = function(delta, MAX) {
-        var lines = delta.lines;
-        var l = lines.length;
-        var row = delta.start.row;
-        var column = delta.start.column;
-        var from = 0, to = 0;
-        do {
-            from = to;
-            to += MAX - 1;
-            var chunk = lines.slice(from, to);
-            if (to > l) {
-                delta.lines = chunk;
-                delta.start.row = row + from;
-                delta.start.column = column;
-                break;
-            }
-            chunk.push("");
-            this.applyDelta({
-                start: this.pos(row + from, column),
-                end: this.pos(row + to, column = 0),
-                action: delta.action,
-                lines: chunk
-            }, true);
-        } while(true);
-    };
-    this.revertDelta = function(delta) {
-        this.applyDelta({
-            start: this.clonePos(delta.start),
-            end: this.clonePos(delta.end),
-            action: (delta.action == "insert" ? "remove" : "insert"),
-            lines: delta.lines.slice()
-        });
-    };
-    this.indexToPosition = function(index, startRow) {
-        var lines = this.$lines || this.getAllLines();
-        var newlineLength = this.getNewLineCharacter().length;
-        for (var i = startRow || 0, l = lines.length; i < l; i++) {
-            index -= lines[i].length + newlineLength;
-            if (index < 0)
-                return {row: i, column: index + lines[i].length + newlineLength};
-        }
-        return {row: l-1, column: lines[l-1].length};
-    };
-    this.positionToIndex = function(pos, startRow) {
-        var lines = this.$lines || this.getAllLines();
-        var newlineLength = this.getNewLineCharacter().length;
-        var index = 0;
-        var row = Math.min(pos.row, lines.length);
-        for (var i = startRow || 0; i < row; ++i)
-            index += lines[i].length + newlineLength;
-
-        return index + pos.column;
-    };
-
-}).call(Document.prototype);
-
-exports.Document = Document;
-});
-
-ace.define("ace/background_tokenizer",["require","exports","module","ace/lib/oop","ace/lib/event_emitter"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-
-var BackgroundTokenizer = function(tokenizer, editor) {
-    this.running = false;
-    this.lines = [];
-    this.states = [];
-    this.currentLine = 0;
-    this.tokenizer = tokenizer;
-
-    var self = this;
-
-    this.$worker = function() {
-        if (!self.running) { return; }
-
-        var workerStart = new Date();
-        var currentLine = self.currentLine;
-        var endLine = -1;
-        var doc = self.doc;
-
-        var startLine = currentLine;
-        while (self.lines[currentLine])
-            currentLine++;
-
-        var len = doc.getLength();
-        var processedLines = 0;
-        self.running = false;
-        while (currentLine < len) {
-            self.$tokenizeRow(currentLine);
-            endLine = currentLine;
-            do {
-                currentLine++;
-            } while (self.lines[currentLine]);
-            processedLines ++;
-            if ((processedLines % 5 === 0) && (new Date() - workerStart) > 20) {
-                self.running = setTimeout(self.$worker, 20);
-                break;
-            }
-        }
-        self.currentLine = currentLine;
-
-        if (startLine <= endLine)
-            self.fireUpdateEvent(startLine, endLine);
-    };
-};
-
-(function(){
-
-    oop.implement(this, EventEmitter);
-    this.setTokenizer = function(tokenizer) {
-        this.tokenizer = tokenizer;
-        this.lines = [];
-        this.states = [];
-
-        this.start(0);
-    };
-    this.setDocument = function(doc) {
-        this.doc = doc;
-        this.lines = [];
-        this.states = [];
-
-        this.stop();
-    };
-    this.fireUpdateEvent = function(firstRow, lastRow) {
-        var data = {
-            first: firstRow,
-            last: lastRow
-        };
-        this._signal("update", {data: data});
-    };
-    this.start = function(startRow) {
-        this.currentLine = Math.min(startRow || 0, this.currentLine, this.doc.getLength());
-        this.lines.splice(this.currentLine, this.lines.length);
-        this.states.splice(this.currentLine, this.states.length);
-
-        this.stop();
-        this.running = setTimeout(this.$worker, 700);
-    };
-
-    this.scheduleStart = function() {
-        if (!this.running)
-            this.running = setTimeout(this.$worker, 700);
-    }
-
-    this.$updateOnChange = function(delta) {
-        var startRow = delta.start.row;
-        var len = delta.end.row - startRow;
-
-        if (len === 0) {
-            this.lines[startRow] = null;
-        } else if (delta.action == "remove") {
-            this.lines.splice(startRow, len + 1, null);
-            this.states.splice(startRow, len + 1, null);
-        } else {
-            var args = Array(len + 1);
-            args.unshift(startRow, 1);
-            this.lines.splice.apply(this.lines, args);
-            this.states.splice.apply(this.states, args);
-        }
-
-        this.currentLine = Math.min(startRow, this.currentLine, this.doc.getLength());
-
-        this.stop();
-    };
-    this.stop = function() {
-        if (this.running)
-            clearTimeout(this.running);
-        this.running = false;
-    };
-    this.getTokens = function(row) {
-        return this.lines[row] || this.$tokenizeRow(row);
-    };
-    this.getState = function(row) {
-        if (this.currentLine == row)
-            this.$tokenizeRow(row);
-        return this.states[row] || "start";
-    };
-
-    this.$tokenizeRow = function(row) {
-        var line = this.doc.getLine(row);
-        var state = this.states[row - 1];
-
-        var data = this.tokenizer.getLineTokens(line, state, row);
-
-        if (this.states[row] + "" !== data.state + "") {
-            this.states[row] = data.state;
-            this.lines[row + 1] = null;
-            if (this.currentLine > row + 1)
-                this.currentLine = row + 1;
-        } else if (this.currentLine == row) {
-            this.currentLine = row + 1;
-        }
-
-        return this.lines[row] = data.tokens;
-    };
-
-}).call(BackgroundTokenizer.prototype);
-
-exports.BackgroundTokenizer = BackgroundTokenizer;
-});
-
-ace.define("ace/search_highlight",["require","exports","module","ace/lib/lang","ace/lib/oop","ace/range"], function(require, exports, module) {
-"use strict";
-
-var lang = require("./lib/lang");
-var oop = require("./lib/oop");
-var Range = require("./range").Range;
-
-var SearchHighlight = function(regExp, clazz, type) {
-    this.setRegexp(regExp);
-    this.clazz = clazz;
-    this.type = type || "text";
-};
-
-(function() {
-    this.MAX_RANGES = 500;
-
-    this.setRegexp = function(regExp) {
-        if (this.regExp+"" == regExp+"")
-            return;
-        this.regExp = regExp;
-        this.cache = [];
-    };
-
-    this.update = function(html, markerLayer, session, config) {
-        if (!this.regExp)
-            return;
-        var start = config.firstRow, end = config.lastRow;
-
-        for (var i = start; i <= end; i++) {
-            var ranges = this.cache[i];
-            if (ranges == null) {
-                ranges = lang.getMatchOffsets(session.getLine(i), this.regExp);
-                if (ranges.length > this.MAX_RANGES)
-                    ranges = ranges.slice(0, this.MAX_RANGES);
-                ranges = ranges.map(function(match) {
-                    return new Range(i, match.offset, i, match.offset + match.length);
-                });
-                this.cache[i] = ranges.length ? ranges : "";
-            }
-
-            for (var j = ranges.length; j --; ) {
-                markerLayer.drawSingleLineMarker(
-                    html, ranges[j].toScreenRange(session), this.clazz, config);
-            }
-        }
-    };
-
-}).call(SearchHighlight.prototype);
-
-exports.SearchHighlight = SearchHighlight;
-});
-
-ace.define("ace/edit_session/fold_line",["require","exports","module","ace/range"], function(require, exports, module) {
-"use strict";
-
-var Range = require("../range").Range;
-function FoldLine(foldData, folds) {
-    this.foldData = foldData;
-    if (Array.isArray(folds)) {
-        this.folds = folds;
-    } else {
-        folds = this.folds = [ folds ];
-    }
-
-    var last = folds[folds.length - 1];
-    this.range = new Range(folds[0].start.row, folds[0].start.column,
-                           last.end.row, last.end.column);
-    this.start = this.range.start;
-    this.end   = this.range.end;
-
-    this.folds.forEach(function(fold) {
-        fold.setFoldLine(this);
-    }, this);
-}
-
-(function() {
-    this.shiftRow = function(shift) {
-        this.start.row += shift;
-        this.end.row += shift;
-        this.folds.forEach(function(fold) {
-            fold.start.row += shift;
-            fold.end.row += shift;
-        });
-    };
-
-    this.addFold = function(fold) {
-        if (fold.sameRow) {
-            if (fold.start.row < this.startRow || fold.endRow > this.endRow) {
-                throw new Error("Can't add a fold to this FoldLine as it has no connection");
-            }
-            this.folds.push(fold);
-            this.folds.sort(function(a, b) {
-                return -a.range.compareEnd(b.start.row, b.start.column);
-            });
-            if (this.range.compareEnd(fold.start.row, fold.start.column) > 0) {
-                this.end.row = fold.end.row;
-                this.end.column =  fold.end.column;
-            } else if (this.range.compareStart(fold.end.row, fold.end.column) < 0) {
-                this.start.row = fold.start.row;
-                this.start.column = fold.start.column;
-            }
-        } else if (fold.start.row == this.end.row) {
-            this.folds.push(fold);
-            this.end.row = fold.end.row;
-            this.end.column = fold.end.column;
-        } else if (fold.end.row == this.start.row) {
-            this.folds.unshift(fold);
-            this.start.row = fold.start.row;
-            this.start.column = fold.start.column;
-        } else {
-            throw new Error("Trying to add fold to FoldRow that doesn't have a matching row");
-        }
-        fold.foldLine = this;
-    };
-
-    this.containsRow = function(row) {
-        return row >= this.start.row && row <= this.end.row;
-    };
-
-    this.walk = function(callback, endRow, endColumn) {
-        var lastEnd = 0,
-            folds = this.folds,
-            fold,
-            cmp, stop, isNewRow = true;
-
-        if (endRow == null) {
-            endRow = this.end.row;
-            endColumn = this.end.column;
-        }
-
-        for (var i = 0; i < folds.length; i++) {
-            fold = folds[i];
-
-            cmp = fold.range.compareStart(endRow, endColumn);
-            if (cmp == -1) {
-                callback(null, endRow, endColumn, lastEnd, isNewRow);
-                return;
-            }
-
-            stop = callback(null, fold.start.row, fold.start.column, lastEnd, isNewRow);
-            stop = !stop && callback(fold.placeholder, fold.start.row, fold.start.column, lastEnd);
-            if (stop || cmp === 0) {
-                return;
-            }
-            isNewRow = !fold.sameRow;
-            lastEnd = fold.end.column;
-        }
-        callback(null, endRow, endColumn, lastEnd, isNewRow);
-    };
-
-    this.getNextFoldTo = function(row, column) {
-        var fold, cmp;
-        for (var i = 0; i < this.folds.length; i++) {
-            fold = this.folds[i];
-            cmp = fold.range.compareEnd(row, column);
-            if (cmp == -1) {
-                return {
-                    fold: fold,
-                    kind: "after"
-                };
-            } else if (cmp === 0) {
-                return {
-                    fold: fold,
-                    kind: "inside"
-                };
-            }
-        }
-        return null;
-    };
-
-    this.addRemoveChars = function(row, column, len) {
-        var ret = this.getNextFoldTo(row, column),
-            fold, folds;
-        if (ret) {
-            fold = ret.fold;
-            if (ret.kind == "inside"
-                && fold.start.column != column
-                && fold.start.row != row)
-            {
-                window.console && window.console.log(row, column, fold);
-            } else if (fold.start.row == row) {
-                folds = this.folds;
-                var i = folds.indexOf(fold);
-                if (i === 0) {
-                    this.start.column += len;
-                }
-                for (i; i < folds.length; i++) {
-                    fold = folds[i];
-                    fold.start.column += len;
-                    if (!fold.sameRow) {
-                        return;
-                    }
-                    fold.end.column += len;
-                }
-                this.end.column += len;
-            }
-        }
-    };
-
-    this.split = function(row, column) {
-        var pos = this.getNextFoldTo(row, column);
-
-        if (!pos || pos.kind == "inside")
-            return null;
-
-        var fold = pos.fold;
-        var folds = this.folds;
-        var foldData = this.foldData;
-
-        var i = folds.indexOf(fold);
-        var foldBefore = folds[i - 1];
-        this.end.row = foldBefore.end.row;
-        this.end.column = foldBefore.end.column;
-        folds = folds.splice(i, folds.length - i);
-
-        var newFoldLine = new FoldLine(foldData, folds);
-        foldData.splice(foldData.indexOf(this) + 1, 0, newFoldLine);
-        return newFoldLine;
-    };
-
-    this.merge = function(foldLineNext) {
-        var folds = foldLineNext.folds;
-        for (var i = 0; i < folds.length; i++) {
-            this.addFold(folds[i]);
-        }
-        var foldData = this.foldData;
-        foldData.splice(foldData.indexOf(foldLineNext), 1);
-    };
-
-    this.toString = function() {
-        var ret = [this.range.toString() + ": [" ];
-
-        this.folds.forEach(function(fold) {
-            ret.push("  " + fold.toString());
-        });
-        ret.push("]");
-        return ret.join("\n");
-    };
-
-    this.idxToPosition = function(idx) {
-        var lastFoldEndColumn = 0;
-
-        for (var i = 0; i < this.folds.length; i++) {
-            var fold = this.folds[i];
-
-            idx -= fold.start.column - lastFoldEndColumn;
-            if (idx < 0) {
-                return {
-                    row: fold.start.row,
-                    column: fold.start.column + idx
-                };
-            }
-
-            idx -= fold.placeholder.length;
-            if (idx < 0) {
-                return fold.start;
-            }
-
-            lastFoldEndColumn = fold.end.column;
-        }
-
-        return {
-            row: this.end.row,
-            column: this.end.column + idx
-        };
-    };
-}).call(FoldLine.prototype);
-
-exports.FoldLine = FoldLine;
-});
-
-ace.define("ace/range_list",["require","exports","module","ace/range"], function(require, exports, module) {
-"use strict";
-var Range = require("./range").Range;
-var comparePoints = Range.comparePoints;
-
-var RangeList = function() {
-    this.ranges = [];
-};
-
-(function() {
-    this.comparePoints = comparePoints;
-
-    this.pointIndex = function(pos, excludeEdges, startIndex) {
-        var list = this.ranges;
-
-        for (var i = startIndex || 0; i < list.length; i++) {
-            var range = list[i];
-            var cmpEnd = comparePoints(pos, range.end);
-            if (cmpEnd > 0)
-                continue;
-            var cmpStart = comparePoints(pos, range.start);
-            if (cmpEnd === 0)
-                return excludeEdges && cmpStart !== 0 ? -i-2 : i;
-            if (cmpStart > 0 || (cmpStart === 0 && !excludeEdges))
-                return i;
-
-            return -i-1;
-        }
-        return -i - 1;
-    };
-
-    this.add = function(range) {
-        var excludeEdges = !range.isEmpty();
-        var startIndex = this.pointIndex(range.start, excludeEdges);
-        if (startIndex < 0)
-            startIndex = -startIndex - 1;
-
-        var endIndex = this.pointIndex(range.end, excludeEdges, startIndex);
-
-        if (endIndex < 0)
-            endIndex = -endIndex - 1;
-        else
-            endIndex++;
-        return this.ranges.splice(startIndex, endIndex - startIndex, range);
-    };
-
-    this.addList = function(list) {
-        var removed = [];
-        for (var i = list.length; i--; ) {
-            removed.push.apply(removed, this.add(list[i]));
-        }
-        return removed;
-    };
-
-    this.substractPoint = function(pos) {
-        var i = this.pointIndex(pos);
-
-        if (i >= 0)
-            return this.ranges.splice(i, 1);
-    };
-    this.merge = function() {
-        var removed = [];
-        var list = this.ranges;
-
-        list = list.sort(function(a, b) {
-            return comparePoints(a.start, b.start);
-        });
-
-        var next = list[0], range;
-        for (var i = 1; i < list.length; i++) {
-            range = next;
-            next = list[i];
-            var cmp = comparePoints(range.end, next.start);
-            if (cmp < 0)
-                continue;
-
-            if (cmp == 0 && !range.isEmpty() && !next.isEmpty())
-                continue;
-
-            if (comparePoints(range.end, next.end) < 0) {
-                range.end.row = next.end.row;
-                range.end.column = next.end.column;
-            }
-
-            list.splice(i, 1);
-            removed.push(next);
-            next = range;
-            i--;
-        }
-
-        this.ranges = list;
-
-        return removed;
-    };
-
-    this.contains = function(row, column) {
-        return this.pointIndex({row: row, column: column}) >= 0;
-    };
-
-    this.containsPoint = function(pos) {
-        return this.pointIndex(pos) >= 0;
-    };
-
-    this.rangeAtPoint = function(pos) {
-        var i = this.pointIndex(pos);
-        if (i >= 0)
-            return this.ranges[i];
-    };
-
-
-    this.clipRows = function(startRow, endRow) {
-        var list = this.ranges;
-        if (list[0].start.row > endRow || list[list.length - 1].start.row < startRow)
-            return [];
-
-        var startIndex = this.pointIndex({row: startRow, column: 0});
-        if (startIndex < 0)
-            startIndex = -startIndex - 1;
-        var endIndex = this.pointIndex({row: endRow, column: 0}, startIndex);
-        if (endIndex < 0)
-            endIndex = -endIndex - 1;
-
-        var clipped = [];
-        for (var i = startIndex; i < endIndex; i++) {
-            clipped.push(list[i]);
-        }
-        return clipped;
-    };
-
-    this.removeAll = function() {
-        return this.ranges.splice(0, this.ranges.length);
-    };
-
-    this.attach = function(session) {
-        if (this.session)
-            this.detach();
-
-        this.session = session;
-        this.onChange = this.$onChange.bind(this);
-
-        this.session.on('change', this.onChange);
-    };
-
-    this.detach = function() {
-        if (!this.session)
-            return;
-        this.session.removeListener('change', this.onChange);
-        this.session = null;
-    };
-
-    this.$onChange = function(delta) {
-        if (delta.action == "insert"){
-            var start = delta.start;
-            var end = delta.end;
-        } else {
-            var end = delta.start;
-            var start = delta.end;
-        }
-        var startRow = start.row;
-        var endRow = end.row;
-        var lineDif = endRow - startRow;
-
-        var colDiff = -start.column + end.column;
-        var ranges = this.ranges;
-
-        for (var i = 0, n = ranges.length; i < n; i++) {
-            var r = ranges[i];
-            if (r.end.row < startRow)
-                continue;
-            if (r.start.row > startRow)
-                break;
-
-            if (r.start.row == startRow && r.start.column >= start.column ) {
-                if (r.start.column == start.column && this.$insertRight) {
-                } else {
-                    r.start.column += colDiff;
-                    r.start.row += lineDif;
-                }
-            }
-            if (r.end.row == startRow && r.end.column >= start.column) {
-                if (r.end.column == start.column && this.$insertRight) {
-                    continue;
-                }
-                if (r.end.column == start.column && colDiff > 0 && i < n - 1) {
-                    if (r.end.column > r.start.column && r.end.column == ranges[i+1].start.column)
-                        r.end.column -= colDiff;
-                }
-                r.end.column += colDiff;
-                r.end.row += lineDif;
-            }
-        }
-
-        if (lineDif != 0 && i < n) {
-            for (; i < n; i++) {
-                var r = ranges[i];
-                r.start.row += lineDif;
-                r.end.row += lineDif;
-            }
-        }
-    };
-
-}).call(RangeList.prototype);
-
-exports.RangeList = RangeList;
-});
-
-ace.define("ace/edit_session/fold",["require","exports","module","ace/range","ace/range_list","ace/lib/oop"], function(require, exports, module) {
-"use strict";
-
-var Range = require("../range").Range;
-var RangeList = require("../range_list").RangeList;
-var oop = require("../lib/oop")
-var Fold = exports.Fold = function(range, placeholder) {
-    this.foldLine = null;
-    this.placeholder = placeholder;
-    this.range = range;
-    this.start = range.start;
-    this.end = range.end;
-
-    this.sameRow = range.start.row == range.end.row;
-    this.subFolds = this.ranges = [];
-};
-
-oop.inherits(Fold, RangeList);
-
-(function() {
-
-    this.toString = function() {
-        return '"' + this.placeholder + '" ' + this.range.toString();
-    };
-
-    this.setFoldLine = function(foldLine) {
-        this.foldLine = foldLine;
-        this.subFolds.forEach(function(fold) {
-            fold.setFoldLine(foldLine);
-        });
-    };
-
-    this.clone = function() {
-        var range = this.range.clone();
-        var fold = new Fold(range, this.placeholder);
-        this.subFolds.forEach(function(subFold) {
-            fold.subFolds.push(subFold.clone());
-        });
-        fold.collapseChildren = this.collapseChildren;
-        return fold;
-    };
-
-    this.addSubFold = function(fold) {
-        if (this.range.isEqual(fold))
-            return;
-
-        if (!this.range.containsRange(fold))
-            throw new Error("A fold can't intersect already existing fold" + fold.range + this.range);
-        consumeRange(fold, this.start);
-
-        var row = fold.start.row, column = fold.start.column;
-        for (var i = 0, cmp = -1; i < this.subFolds.length; i++) {
-            cmp = this.subFolds[i].range.compare(row, column);
-            if (cmp != 1)
-                break;
-        }
-        var afterStart = this.subFolds[i];
-
-        if (cmp == 0)
-            return afterStart.addSubFold(fold);
-        var row = fold.range.end.row, column = fold.range.end.column;
-        for (var j = i, cmp = -1; j < this.subFolds.length; j++) {
-            cmp = this.subFolds[j].range.compare(row, column);
-            if (cmp != 1)
-                break;
-        }
-        var afterEnd = this.subFolds[j];
-
-        if (cmp == 0)
-            throw new Error("A fold can't intersect already existing fold" + fold.range + this.range);
-
-        var consumedFolds = this.subFolds.splice(i, j - i, fold);
-        fold.setFoldLine(this.foldLine);
-
-        return fold;
-    };
-
-    this.restoreRange = function(range) {
-        return restoreRange(range, this.start);
-    };
-
-}).call(Fold.prototype);
-
-function consumePoint(point, anchor) {
-    point.row -= anchor.row;
-    if (point.row == 0)
-        point.column -= anchor.column;
-}
-function consumeRange(range, anchor) {
-    consumePoint(range.start, anchor);
-    consumePoint(range.end, anchor);
-}
-function restorePoint(point, anchor) {
-    if (point.row == 0)
-        point.column += anchor.column;
-    point.row += anchor.row;
-}
-function restoreRange(range, anchor) {
-    restorePoint(range.start, anchor);
-    restorePoint(range.end, anchor);
-}
-
-});
-
-ace.define("ace/edit_session/folding",["require","exports","module","ace/range","ace/edit_session/fold_line","ace/edit_session/fold","ace/token_iterator"], function(require, exports, module) {
-"use strict";
-
-var Range = require("../range").Range;
-var FoldLine = require("./fold_line").FoldLine;
-var Fold = require("./fold").Fold;
-var TokenIterator = require("../token_iterator").TokenIterator;
-
-function Folding() {
-    this.getFoldAt = function(row, column, side) {
-        var foldLine = this.getFoldLine(row);
-        if (!foldLine)
-            return null;
-
-        var folds = foldLine.folds;
-        for (var i = 0; i < folds.length; i++) {
-            var fold = folds[i];
-            if (fold.range.contains(row, column)) {
-                if (side == 1 && fold.range.isEnd(row, column)) {
-                    continue;
-                } else if (side == -1 && fold.range.isStart(row, column)) {
-                    continue;
-                }
-                return fold;
-            }
-        }
-    };
-    this.getFoldsInRange = function(range) {
-        var start = range.start;
-        var end = range.end;
-        var foldLines = this.$foldData;
-        var foundFolds = [];
-
-        start.column += 1;
-        end.column -= 1;
-
-        for (var i = 0; i < foldLines.length; i++) {
-            var cmp = foldLines[i].range.compareRange(range);
-            if (cmp == 2) {
-                continue;
-            }
-            else if (cmp == -2) {
-                break;
-            }
-
-            var folds = foldLines[i].folds;
-            for (var j = 0; j < folds.length; j++) {
-                var fold = folds[j];
-                cmp = fold.range.compareRange(range);
-                if (cmp == -2) {
-                    break;
-                } else if (cmp == 2) {
-                    continue;
-                } else
-                if (cmp == 42) {
-                    break;
-                }
-                foundFolds.push(fold);
-            }
-        }
-        start.column -= 1;
-        end.column += 1;
-
-        return foundFolds;
-    };
-
-    this.getFoldsInRangeList = function(ranges) {
-        if (Array.isArray(ranges)) {
-            var folds = [];
-            ranges.forEach(function(range) {
-                folds = folds.concat(this.getFoldsInRange(range));
-            }, this);
-        } else {
-            var folds = this.getFoldsInRange(ranges);
-        }
-        return folds;
-    };
-    this.getAllFolds = function() {
-        var folds = [];
-        var foldLines = this.$foldData;
-
-        for (var i = 0; i < foldLines.length; i++)
-            for (var j = 0; j < foldLines[i].folds.length; j++)
-                folds.push(foldLines[i].folds[j]);
-
-        return folds;
-    };
-    this.getFoldStringAt = function(row, column, trim, foldLine) {
-        foldLine = foldLine || this.getFoldLine(row);
-        if (!foldLine)
-            return null;
-
-        var lastFold = {
-            end: { column: 0 }
-        };
-        var str, fold;
-        for (var i = 0; i < foldLine.folds.length; i++) {
-            fold = foldLine.folds[i];
-            var cmp = fold.range.compareEnd(row, column);
-            if (cmp == -1) {
-                str = this
-                    .getLine(fold.start.row)
-                    .substring(lastFold.end.column, fold.start.column);
-                break;
-            }
-            else if (cmp === 0) {
-                return null;
-            }
-            lastFold = fold;
-        }
-        if (!str)
-            str = this.getLine(fold.start.row).substring(lastFold.end.column);
-
-        if (trim == -1)
-            return str.substring(0, column - lastFold.end.column);
-        else if (trim == 1)
-            return str.substring(column - lastFold.end.column);
-        else
-            return str;
-    };
-
-    this.getFoldLine = function(docRow, startFoldLine) {
-        var foldData = this.$foldData;
-        var i = 0;
-        if (startFoldLine)
-            i = foldData.indexOf(startFoldLine);
-        if (i == -1)
-            i = 0;
-        for (i; i < foldData.length; i++) {
-            var foldLine = foldData[i];
-            if (foldLine.start.row <= docRow && foldLine.end.row >= docRow) {
-                return foldLine;
-            } else if (foldLine.end.row > docRow) {
-                return null;
-            }
-        }
-        return null;
-    };
-    this.getNextFoldLine = function(docRow, startFoldLine) {
-        var foldData = this.$foldData;
-        var i = 0;
-        if (startFoldLine)
-            i = foldData.indexOf(startFoldLine);
-        if (i == -1)
-            i = 0;
-        for (i; i < foldData.length; i++) {
-            var foldLine = foldData[i];
-            if (foldLine.end.row >= docRow) {
-                return foldLine;
-            }
-        }
-        return null;
-    };
-
-    this.getFoldedRowCount = function(first, last) {
-        var foldData = this.$foldData, rowCount = last-first+1;
-        for (var i = 0; i < foldData.length; i++) {
-            var foldLine = foldData[i],
-                end = foldLine.end.row,
-                start = foldLine.start.row;
-            if (end >= last) {
-                if (start < last) {
-                    if (start >= first)
-                        rowCount -= last-start;
-                    else
-                        rowCount = 0; // in one fold
-                }
-                break;
-            } else if (end >= first){
-                if (start >= first) // fold inside range
-                    rowCount -=  end-start;
-                else
-                    rowCount -=  end-first+1;
-            }
-        }
-        return rowCount;
-    };
-
-    this.$addFoldLine = function(foldLine) {
-        this.$foldData.push(foldLine);
-        this.$foldData.sort(function(a, b) {
-            return a.start.row - b.start.row;
-        });
-        return foldLine;
-    };
-    this.addFold = function(placeholder, range) {
-        var foldData = this.$foldData;
-        var added = false;
-        var fold;
-
-        if (placeholder instanceof Fold)
-            fold = placeholder;
-        else {
-            fold = new Fold(range, placeholder);
-            fold.collapseChildren = range.collapseChildren;
-        }
-        this.$clipRangeToDocument(fold.range);
-
-        var startRow = fold.start.row;
-        var startColumn = fold.start.column;
-        var endRow = fold.end.row;
-        var endColumn = fold.end.column;
-        if (!(startRow < endRow ||
-            startRow == endRow && startColumn <= endColumn - 2))
-            throw new Error("The range has to be at least 2 characters width");
-
-        var startFold = this.getFoldAt(startRow, startColumn, 1);
-        var endFold = this.getFoldAt(endRow, endColumn, -1);
-        if (startFold && endFold == startFold)
-            return startFold.addSubFold(fold);
-
-        if (startFold && !startFold.range.isStart(startRow, startColumn))
-            this.removeFold(startFold);
-
-        if (endFold && !endFold.range.isEnd(endRow, endColumn))
-            this.removeFold(endFold);
-        var folds = this.getFoldsInRange(fold.range);
-        if (folds.length > 0) {
-            this.removeFolds(folds);
-            folds.forEach(function(subFold) {
-                fold.addSubFold(subFold);
-            });
-        }
-
-        for (var i = 0; i < foldData.length; i++) {
-            var foldLine = foldData[i];
-            if (endRow == foldLine.start.row) {
-                foldLine.addFold(fold);
-                added = true;
-                break;
-            } else if (startRow == foldLine.end.row) {
-                foldLine.addFold(fold);
-                added = true;
-                if (!fold.sameRow) {
-                    var foldLineNext = foldData[i + 1];
-                    if (foldLineNext && foldLineNext.start.row == endRow) {
-                        foldLine.merge(foldLineNext);
-                        break;
-                    }
-                }
-                break;
-            } else if (endRow <= foldLine.start.row) {
-                break;
-            }
-        }
-
-        if (!added)
-            foldLine = this.$addFoldLine(new FoldLine(this.$foldData, fold));
-
-        if (this.$useWrapMode)
-            this.$updateWrapData(foldLine.start.row, foldLine.start.row);
-        else
-            this.$updateRowLengthCache(foldLine.start.row, foldLine.start.row);
-        this.$modified = true;
-        this._signal("changeFold", { data: fold, action: "add" });
-
-        return fold;
-    };
-
-    this.addFolds = function(folds) {
-        folds.forEach(function(fold) {
-            this.addFold(fold);
-        }, this);
-    };
-
-    this.removeFold = function(fold) {
-        var foldLine = fold.foldLine;
-        var startRow = foldLine.start.row;
-        var endRow = foldLine.end.row;
-
-        var foldLines = this.$foldData;
-        var folds = foldLine.folds;
-        if (folds.length == 1) {
-            foldLines.splice(foldLines.indexOf(foldLine), 1);
-        } else
-        if (foldLine.range.isEnd(fold.end.row, fold.end.column)) {
-            folds.pop();
-            foldLine.end.row = folds[folds.length - 1].end.row;
-            foldLine.end.column = folds[folds.length - 1].end.column;
-        } else
-        if (foldLine.range.isStart(fold.start.row, fold.start.column)) {
-            folds.shift();
-            foldLine.start.row = folds[0].start.row;
-            foldLine.start.column = folds[0].start.column;
-        } else
-        if (fold.sameRow) {
-            folds.splice(folds.indexOf(fold), 1);
-        } else
-        {
-            var newFoldLine = foldLine.split(fold.start.row, fold.start.column);
-            folds = newFoldLine.folds;
-            folds.shift();
-            newFoldLine.start.row = folds[0].start.row;
-            newFoldLine.start.column = folds[0].start.column;
-        }
-
-        if (!this.$updating) {
-            if (this.$useWrapMode)
-                this.$updateWrapData(startRow, endRow);
-            else
-                this.$updateRowLengthCache(startRow, endRow);
-        }
-        this.$modified = true;
-        this._signal("changeFold", { data: fold, action: "remove" });
-    };
-
-    this.removeFolds = function(folds) {
-        var cloneFolds = [];
-        for (var i = 0; i < folds.length; i++) {
-            cloneFolds.push(folds[i]);
-        }
-
-        cloneFolds.forEach(function(fold) {
-            this.removeFold(fold);
-        }, this);
-        this.$modified = true;
-    };
-
-    this.expandFold = function(fold) {
-        this.removeFold(fold);
-        fold.subFolds.forEach(function(subFold) {
-            fold.restoreRange(subFold);
-            this.addFold(subFold);
-        }, this);
-        if (fold.collapseChildren > 0) {
-            this.foldAll(fold.start.row+1, fold.end.row, fold.collapseChildren-1);
-        }
-        fold.subFolds = [];
-    };
-
-    this.expandFolds = function(folds) {
-        folds.forEach(function(fold) {
-            this.expandFold(fold);
-        }, this);
-    };
-
-    this.unfold = function(location, expandInner) {
-        var range, folds;
-        if (location == null) {
-            range = new Range(0, 0, this.getLength(), 0);
-            expandInner = true;
-        } else if (typeof location == "number")
-            range = new Range(location, 0, location, this.getLine(location).length);
-        else if ("row" in location)
-            range = Range.fromPoints(location, location);
-        else
-            range = location;
-
-        folds = this.getFoldsInRangeList(range);
-        if (expandInner) {
-            this.removeFolds(folds);
-        } else {
-            var subFolds = folds;
-            while (subFolds.length) {
-                this.expandFolds(subFolds);
-                subFolds = this.getFoldsInRangeList(range);
-            }
-        }
-        if (folds.length)
-            return folds;
-    };
-    this.isRowFolded = function(docRow, startFoldRow) {
-        return !!this.getFoldLine(docRow, startFoldRow);
-    };
-
-    this.getRowFoldEnd = function(docRow, startFoldRow) {
-        var foldLine = this.getFoldLine(docRow, startFoldRow);
-        return foldLine ? foldLine.end.row : docRow;
-    };
-
-    this.getRowFoldStart = function(docRow, startFoldRow) {
-        var foldLine = this.getFoldLine(docRow, startFoldRow);
-        return foldLine ? foldLine.start.row : docRow;
-    };
-
-    this.getFoldDisplayLine = function(foldLine, endRow, endColumn, startRow, startColumn) {
-        if (startRow == null)
-            startRow = foldLine.start.row;
-        if (startColumn == null)
-            startColumn = 0;
-        if (endRow == null)
-            endRow = foldLine.end.row;
-        if (endColumn == null)
-            endColumn = this.getLine(endRow).length;
-        var doc = this.doc;
-        var textLine = "";
-
-        foldLine.walk(function(placeholder, row, column, lastColumn) {
-            if (row < startRow)
-                return;
-            if (row == startRow) {
-                if (column < startColumn)
-                    return;
-                lastColumn = Math.max(startColumn, lastColumn);
-            }
-
-            if (placeholder != null) {
-                textLine += placeholder;
-            } else {
-                textLine += doc.getLine(row).substring(lastColumn, column);
-            }
-        }, endRow, endColumn);
-        return textLine;
-    };
-
-    this.getDisplayLine = function(row, endColumn, startRow, startColumn) {
-        var foldLine = this.getFoldLine(row);
-
-        if (!foldLine) {
-            var line;
-            line = this.doc.getLine(row);
-            return line.substring(startColumn || 0, endColumn || line.length);
-        } else {
-            return this.getFoldDisplayLine(
-                foldLine, row, endColumn, startRow, startColumn);
-        }
-    };
-
-    this.$cloneFoldData = function() {
-        var fd = [];
-        fd = this.$foldData.map(function(foldLine) {
-            var folds = foldLine.folds.map(function(fold) {
-                return fold.clone();
-            });
-            return new FoldLine(fd, folds);
-        });
-
-        return fd;
-    };
-
-    this.toggleFold = function(tryToUnfold) {
-        var selection = this.selection;
-        var range = selection.getRange();
-        var fold;
-        var bracketPos;
-
-        if (range.isEmpty()) {
-            var cursor = range.start;
-            fold = this.getFoldAt(cursor.row, cursor.column);
-
-            if (fold) {
-                this.expandFold(fold);
-                return;
-            } else if (bracketPos = this.findMatchingBracket(cursor)) {
-                if (range.comparePoint(bracketPos) == 1) {
-                    range.end = bracketPos;
-                } else {
-                    range.start = bracketPos;
-                    range.start.column++;
-                    range.end.column--;
-                }
-            } else if (bracketPos = this.findMatchingBracket({row: cursor.row, column: cursor.column + 1})) {
-                if (range.comparePoint(bracketPos) == 1)
-                    range.end = bracketPos;
-                else
-                    range.start = bracketPos;
-
-                range.start.column++;
-            } else {
-                range = this.getCommentFoldRange(cursor.row, cursor.column) || range;
-            }
-        } else {
-            var folds = this.getFoldsInRange(range);
-            if (tryToUnfold && folds.length) {
-                this.expandFolds(folds);
-                return;
-            } else if (folds.length == 1 ) {
-                fold = folds[0];
-            }
-        }
-
-        if (!fold)
-            fold = this.getFoldAt(range.start.row, range.start.column);
-
-        if (fold && fold.range.toString() == range.toString()) {
-            this.expandFold(fold);
-            return;
-        }
-
-        var placeholder = "...";
-        if (!range.isMultiLine()) {
-            placeholder = this.getTextRange(range);
-            if (placeholder.length < 4)
-                return;
-            placeholder = placeholder.trim().substring(0, 2) + "..";
-        }
-
-        this.addFold(placeholder, range);
-    };
-
-    this.getCommentFoldRange = function(row, column, dir) {
-        var iterator = new TokenIterator(this, row, column);
-        var token = iterator.getCurrentToken();
-        if (token && /^comment|string/.test(token.type)) {
-            var range = new Range();
-            var re = new RegExp(token.type.replace(/\..*/, "\\."));
-            if (dir != 1) {
-                do {
-                    token = iterator.stepBackward();
-                } while (token && re.test(token.type));
-                iterator.stepForward();
-            }
-
-            range.start.row = iterator.getCurrentTokenRow();
-            range.start.column = iterator.getCurrentTokenColumn() + 2;
-
-            iterator = new TokenIterator(this, row, column);
-
-            if (dir != -1) {
-                do {
-                    token = iterator.stepForward();
-                } while (token && re.test(token.type));
-                token = iterator.stepBackward();
-            } else
-                token = iterator.getCurrentToken();
-
-            range.end.row = iterator.getCurrentTokenRow();
-            range.end.column = iterator.getCurrentTokenColumn() + token.value.length - 2;
-            return range;
-        }
-    };
-
-    this.foldAll = function(startRow, endRow, depth) {
-        if (depth == undefined)
-            depth = 100000; // JSON.stringify doesn't hanle Infinity
-        var foldWidgets = this.foldWidgets;
-        if (!foldWidgets)
-            return; // mode doesn't support folding
-        endRow = endRow || this.getLength();
-        startRow = startRow || 0;
-        for (var row = startRow; row < endRow; row++) {
-            if (foldWidgets[row] == null)
-                foldWidgets[row] = this.getFoldWidget(row);
-            if (foldWidgets[row] != "start")
-                continue;
-
-            var range = this.getFoldWidgetRange(row);
-            if (range && range.isMultiLine()
-                && range.end.row <= endRow
-                && range.start.row >= startRow
-            ) {
-                row = range.end.row;
-                try {
-                    var fold = this.addFold("...", range);
-                    if (fold)
-                        fold.collapseChildren = depth;
-                } catch(e) {}
-            }
-        }
-    };
-    this.$foldStyles = {
-        "manual": 1,
-        "markbegin": 1,
-        "markbeginend": 1
-    };
-    this.$foldStyle = "markbegin";
-    this.setFoldStyle = function(style) {
-        if (!this.$foldStyles[style])
-            throw new Error("invalid fold style: " + style + "[" + Object.keys(this.$foldStyles).join(", ") + "]");
-
-        if (this.$foldStyle == style)
-            return;
-
-        this.$foldStyle = style;
-
-        if (style == "manual")
-            this.unfold();
-        var mode = this.$foldMode;
-        this.$setFolding(null);
-        this.$setFolding(mode);
-    };
-
-    this.$setFolding = function(foldMode) {
-        if (this.$foldMode == foldMode)
-            return;
-
-        this.$foldMode = foldMode;
-
-        this.off('change', this.$updateFoldWidgets);
-        this.off('tokenizerUpdate', this.$tokenizerUpdateFoldWidgets);
-        this._signal("changeAnnotation");
-
-        if (!foldMode || this.$foldStyle == "manual") {
-            this.foldWidgets = null;
-            return;
-        }
-
-        this.foldWidgets = [];
-        this.getFoldWidget = foldMode.getFoldWidget.bind(foldMode, this, this.$foldStyle);
-        this.getFoldWidgetRange = foldMode.getFoldWidgetRange.bind(foldMode, this, this.$foldStyle);
-
-        this.$updateFoldWidgets = this.updateFoldWidgets.bind(this);
-        this.$tokenizerUpdateFoldWidgets = this.tokenizerUpdateFoldWidgets.bind(this);
-        this.on('change', this.$updateFoldWidgets);
-        this.on('tokenizerUpdate', this.$tokenizerUpdateFoldWidgets);
-    };
-
-    this.getParentFoldRangeData = function (row, ignoreCurrent) {
-        var fw = this.foldWidgets;
-        if (!fw || (ignoreCurrent && fw[row]))
-            return {};
-
-        var i = row - 1, firstRange;
-        while (i >= 0) {
-            var c = fw[i];
-            if (c == null)
-                c = fw[i] = this.getFoldWidget(i);
-
-            if (c == "start") {
-                var range = this.getFoldWidgetRange(i);
-                if (!firstRange)
-                    firstRange = range;
-                if (range && range.end.row >= row)
-                    break;
-            }
-            i--;
-        }
-
-        return {
-            range: i !== -1 && range,
-            firstRange: firstRange
-        };
-    };
-
-    this.onFoldWidgetClick = function(row, e) {
-        e = e.domEvent;
-        var options = {
-            children: e.shiftKey,
-            all: e.ctrlKey || e.metaKey,
-            siblings: e.altKey
-        };
-
-        var range = this.$toggleFoldWidget(row, options);
-        if (!range) {
-            var el = (e.target || e.srcElement);
-            if (el && /ace_fold-widget/.test(el.className))
-                el.className += " ace_invalid";
-        }
-    };
-
-    this.$toggleFoldWidget = function(row, options) {
-        if (!this.getFoldWidget)
-            return;
-        var type = this.getFoldWidget(row);
-        var line = this.getLine(row);
-
-        var dir = type === "end" ? -1 : 1;
-        var fold = this.getFoldAt(row, dir === -1 ? 0 : line.length, dir);
-
-        if (fold) {
-            if (options.children || options.all)
-                this.removeFold(fold);
-            else
-                this.expandFold(fold);
-            return;
-        }
-
-        var range = this.getFoldWidgetRange(row, true);
-        if (range && !range.isMultiLine()) {
-            fold = this.getFoldAt(range.start.row, range.start.column, 1);
-            if (fold && range.isEqual(fold.range)) {
-                this.removeFold(fold);
-                return;
-            }
-        }
-
-        if (options.siblings) {
-            var data = this.getParentFoldRangeData(row);
-            if (data.range) {
-                var startRow = data.range.start.row + 1;
-                var endRow = data.range.end.row;
-            }
-            this.foldAll(startRow, endRow, options.all ? 10000 : 0);
-        } else if (options.children) {
-            endRow = range ? range.end.row : this.getLength();
-            this.foldAll(row + 1, endRow, options.all ? 10000 : 0);
-        } else if (range) {
-            if (options.all)
-                range.collapseChildren = 10000;
-            this.addFold("...", range);
-        }
-
-        return range;
-    };
-
-
-
-    this.toggleFoldWidget = function(toggleParent) {
-        var row = this.selection.getCursor().row;
-        row = this.getRowFoldStart(row);
-        var range = this.$toggleFoldWidget(row, {});
-
-        if (range)
-            return;
-        var data = this.getParentFoldRangeData(row, true);
-        range = data.range || data.firstRange;
-
-        if (range) {
-            row = range.start.row;
-            var fold = this.getFoldAt(row, this.getLine(row).length, 1);
-
-            if (fold) {
-                this.removeFold(fold);
-            } else {
-                this.addFold("...", range);
-            }
-        }
-    };
-
-    this.updateFoldWidgets = function(delta) {
-        var firstRow = delta.start.row;
-        var len = delta.end.row - firstRow;
-
-        if (len === 0) {
-            this.foldWidgets[firstRow] = null;
-        } else if (delta.action == 'remove') {
-            this.foldWidgets.splice(firstRow, len + 1, null);
-        } else {
-            var args = Array(len + 1);
-            args.unshift(firstRow, 1);
-            this.foldWidgets.splice.apply(this.foldWidgets, args);
-        }
-    };
-    this.tokenizerUpdateFoldWidgets = function(e) {
-        var rows = e.data;
-        if (rows.first != rows.last) {
-            if (this.foldWidgets.length > rows.first)
-                this.foldWidgets.splice(rows.first, this.foldWidgets.length);
-        }
-    };
-}
-
-exports.Folding = Folding;
-
-});
-
-ace.define("ace/edit_session/bracket_match",["require","exports","module","ace/token_iterator","ace/range"], function(require, exports, module) {
-"use strict";
-
-var TokenIterator = require("../token_iterator").TokenIterator;
-var Range = require("../range").Range;
-
-
-function BracketMatch() {
-
-    this.findMatchingBracket = function(position, chr) {
-        if (position.column == 0) return null;
-
-        var charBeforeCursor = chr || this.getLine(position.row).charAt(position.column-1);
-        if (charBeforeCursor == "") return null;
-
-        var match = charBeforeCursor.match(/([\(\[\{])|([\)\]\}])/);
-        if (!match)
-            return null;
-
-        if (match[1])
-            return this.$findClosingBracket(match[1], position);
-        else
-            return this.$findOpeningBracket(match[2], position);
-    };
-
-    this.getBracketRange = function(pos) {
-        var line = this.getLine(pos.row);
-        var before = true, range;
-
-        var chr = line.charAt(pos.column-1);
-        var match = chr && chr.match(/([\(\[\{])|([\)\]\}])/);
-        if (!match) {
-            chr = line.charAt(pos.column);
-            pos = {row: pos.row, column: pos.column + 1};
-            match = chr && chr.match(/([\(\[\{])|([\)\]\}])/);
-            before = false;
-        }
-        if (!match)
-            return null;
-
-        if (match[1]) {
-            var bracketPos = this.$findClosingBracket(match[1], pos);
-            if (!bracketPos)
-                return null;
-            range = Range.fromPoints(pos, bracketPos);
-            if (!before) {
-                range.end.column++;
-                range.start.column--;
-            }
-            range.cursor = range.end;
-        } else {
-            var bracketPos = this.$findOpeningBracket(match[2], pos);
-            if (!bracketPos)
-                return null;
-            range = Range.fromPoints(bracketPos, pos);
-            if (!before) {
-                range.start.column++;
-                range.end.column--;
-            }
-            range.cursor = range.start;
-        }
-
-        return range;
-    };
-
-    this.$brackets = {
-        ")": "(",
-        "(": ")",
-        "]": "[",
-        "[": "]",
-        "{": "}",
-        "}": "{"
-    };
-
-    this.$findOpeningBracket = function(bracket, position, typeRe) {
-        var openBracket = this.$brackets[bracket];
-        var depth = 1;
-
-        var iterator = new TokenIterator(this, position.row, position.column);
-        var token = iterator.getCurrentToken();
-        if (!token)
-            token = iterator.stepForward();
-        if (!token)
-            return;
-
-         if (!typeRe){
-            typeRe = new RegExp(
-                "(\\.?" +
-                token.type.replace(".", "\\.").replace("rparen", ".paren")
-                    .replace(/\b(?:end)\b/, "(?:start|begin|end)")
-                + ")+"
-            );
-        }
-        var valueIndex = position.column - iterator.getCurrentTokenColumn() - 2;
-        var value = token.value;
-
-        while (true) {
-
-            while (valueIndex >= 0) {
-                var chr = value.charAt(valueIndex);
-                if (chr == openBracket) {
-                    depth -= 1;
-                    if (depth == 0) {
-                        return {row: iterator.getCurrentTokenRow(),
-                            column: valueIndex + iterator.getCurrentTokenColumn()};
-                    }
-                }
-                else if (chr == bracket) {
-                    depth += 1;
-                }
-                valueIndex -= 1;
-            }
-            do {
-                token = iterator.stepBackward();
-            } while (token && !typeRe.test(token.type));
-
-            if (token == null)
-                break;
-
-            value = token.value;
-            valueIndex = value.length - 1;
-        }
-
-        return null;
-    };
-
-    this.$findClosingBracket = function(bracket, position, typeRe) {
-        var closingBracket = this.$brackets[bracket];
-        var depth = 1;
-
-        var iterator = new TokenIterator(this, position.row, position.column);
-        var token = iterator.getCurrentToken();
-        if (!token)
-            token = iterator.stepForward();
-        if (!token)
-            return;
-
-        if (!typeRe){
-            typeRe = new RegExp(
-                "(\\.?" +
-                token.type.replace(".", "\\.").replace("lparen", ".paren")
-                    .replace(/\b(?:start|begin)\b/, "(?:start|begin|end)")
-                + ")+"
-            );
-        }
-        var valueIndex = position.column - iterator.getCurrentTokenColumn();
-
-        while (true) {
-
-            var value = token.value;
-            var valueLength = value.length;
-            while (valueIndex < valueLength) {
-                var chr = value.charAt(valueIndex);
-                if (chr == closingBracket) {
-                    depth -= 1;
-                    if (depth == 0) {
-                        return {row: iterator.getCurrentTokenRow(),
-                            column: valueIndex + iterator.getCurrentTokenColumn()};
-                    }
-                }
-                else if (chr == bracket) {
-                    depth += 1;
-                }
-                valueIndex += 1;
-            }
-            do {
-                token = iterator.stepForward();
-            } while (token && !typeRe.test(token.type));
-
-            if (token == null)
-                break;
-
-            valueIndex = 0;
-        }
-
-        return null;
-    };
-}
-exports.BracketMatch = BracketMatch;
-
-});
-
-ace.define("ace/edit_session",["require","exports","module","ace/lib/oop","ace/lib/lang","ace/config","ace/lib/event_emitter","ace/selection","ace/mode/text","ace/range","ace/document","ace/background_tokenizer","ace/search_highlight","ace/edit_session/folding","ace/edit_session/bracket_match"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var lang = require("./lib/lang");
-var config = require("./config");
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-var Selection = require("./selection").Selection;
-var TextMode = require("./mode/text").Mode;
-var Range = require("./range").Range;
-var Document = require("./document").Document;
-var BackgroundTokenizer = require("./background_tokenizer").BackgroundTokenizer;
-var SearchHighlight = require("./search_highlight").SearchHighlight;
-
-var EditSession = function(text, mode) {
-    this.$breakpoints = [];
-    this.$decorations = [];
-    this.$frontMarkers = {};
-    this.$backMarkers = {};
-    this.$markerId = 1;
-    this.$undoSelect = true;
-
-    this.$foldData = [];
-    this.$foldData.toString = function() {
-        return this.join("\n");
-    };
-    this.on("changeFold", this.onChangeFold.bind(this));
-    this.$onChange = this.onChange.bind(this);
-
-    if (typeof text != "object" || !text.getLine)
-        text = new Document(text);
-
-    this.setDocument(text);
-    this.selection = new Selection(this);
-
-    config.resetOptions(this);
-    this.setMode(mode);
-    config._signal("session", this);
-};
-
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-    this.setDocument = function(doc) {
-        if (this.doc)
-            this.doc.removeListener("change", this.$onChange);
-
-        this.doc = doc;
-        doc.on("change", this.$onChange);
-
-        if (this.bgTokenizer)
-            this.bgTokenizer.setDocument(this.getDocument());
-
-        this.resetCaches();
-    };
-    this.getDocument = function() {
-        return this.doc;
-    };
-    this.$resetRowCache = function(docRow) {
-        if (!docRow) {
-            this.$docRowCache = [];
-            this.$screenRowCache = [];
-            return;
-        }
-        var l = this.$docRowCache.length;
-        var i = this.$getRowCacheIndex(this.$docRowCache, docRow) + 1;
-        if (l > i) {
-            this.$docRowCache.splice(i, l);
-            this.$screenRowCache.splice(i, l);
-        }
-    };
-
-    this.$getRowCacheIndex = function(cacheArray, val) {
-        var low = 0;
-        var hi = cacheArray.length - 1;
-
-        while (low <= hi) {
-            var mid = (low + hi) >> 1;
-            var c = cacheArray[mid];
-
-            if (val > c)
-                low = mid + 1;
-            else if (val < c)
-                hi = mid - 1;
-            else
-                return mid;
-        }
-
-        return low -1;
-    };
-
-    this.resetCaches = function() {
-        this.$modified = true;
-        this.$wrapData = [];
-        this.$rowLengthCache = [];
-        this.$resetRowCache(0);
-        if (this.bgTokenizer)
-            this.bgTokenizer.start(0);
-    };
-
-    this.onChangeFold = function(e) {
-        var fold = e.data;
-        this.$resetRowCache(fold.start.row);
-    };
-
-    this.onChange = function(delta) {
-        this.$modified = true;
-
-        this.$resetRowCache(delta.start.row);
-
-        var removedFolds = this.$updateInternalDataOnChange(delta);
-        if (!this.$fromUndo && this.$undoManager && !delta.ignore) {
-            this.$deltasDoc.push(delta);
-            if (removedFolds && removedFolds.length != 0) {
-                this.$deltasFold.push({
-                    action: "removeFolds",
-                    folds:  removedFolds
-                });
-            }
-
-            this.$informUndoManager.schedule();
-        }
-
-        this.bgTokenizer && this.bgTokenizer.$updateOnChange(delta);
-        this._signal("change", delta);
-    };
-    this.setValue = function(text) {
-        this.doc.setValue(text);
-        this.selection.moveTo(0, 0);
-
-        this.$resetRowCache(0);
-        this.$deltas = [];
-        this.$deltasDoc = [];
-        this.$deltasFold = [];
-        this.setUndoManager(this.$undoManager);
-        this.getUndoManager().reset();
-    };
-    this.getValue =
-    this.toString = function() {
-        return this.doc.getValue();
-    };
-    this.getSelection = function() {
-        return this.selection;
-    };
-    this.getState = function(row) {
-        return this.bgTokenizer.getState(row);
-    };
-    this.getTokens = function(row) {
-        return this.bgTokenizer.getTokens(row);
-    };
-    this.getTokenAt = function(row, column) {
-        var tokens = this.bgTokenizer.getTokens(row);
-        var token, c = 0;
-        if (column == null) {
-            i = tokens.length - 1;
-            c = this.getLine(row).length;
-        } else {
-            for (var i = 0; i < tokens.length; i++) {
-                c += tokens[i].value.length;
-                if (c >= column)
-                    break;
-            }
-        }
-        token = tokens[i];
-        if (!token)
-            return null;
-        token.index = i;
-        token.start = c - token.value.length;
-        return token;
-    };
-    this.setUndoManager = function(undoManager) {
-        this.$undoManager = undoManager;
-        this.$deltas = [];
-        this.$deltasDoc = [];
-        this.$deltasFold = [];
-
-        if (this.$informUndoManager)
-            this.$informUndoManager.cancel();
-
-        if (undoManager) {
-            var self = this;
-
-            this.$syncInformUndoManager = function() {
-                self.$informUndoManager.cancel();
-
-                if (self.$deltasFold.length) {
-                    self.$deltas.push({
-                        group: "fold",
-                        deltas: self.$deltasFold
-                    });
-                    self.$deltasFold = [];
-                }
-
-                if (self.$deltasDoc.length) {
-                    self.$deltas.push({
-                        group: "doc",
-                        deltas: self.$deltasDoc
-                    });
-                    self.$deltasDoc = [];
-                }
-
-                if (self.$deltas.length > 0) {
-                    undoManager.execute({
-                        action: "aceupdate",
-                        args: [self.$deltas, self],
-                        merge: self.mergeUndoDeltas
-                    });
-                }
-                self.mergeUndoDeltas = false;
-                self.$deltas = [];
-            };
-            this.$informUndoManager = lang.delayedCall(this.$syncInformUndoManager);
-        }
-    };
-    this.markUndoGroup = function() {
-        if (this.$syncInformUndoManager)
-            this.$syncInformUndoManager();
-    };
-
-    this.$defaultUndoManager = {
-        undo: function() {},
-        redo: function() {},
-        reset: function() {}
-    };
-    this.getUndoManager = function() {
-        return this.$undoManager || this.$defaultUndoManager;
-    };
-    this.getTabString = function() {
-        if (this.getUseSoftTabs()) {
-            return lang.stringRepeat(" ", this.getTabSize());
-        } else {
-            return "\t";
-        }
-    };
-    this.setUseSoftTabs = function(val) {
-        this.setOption("useSoftTabs", val);
-    };
-    this.getUseSoftTabs = function() {
-        return this.$useSoftTabs && !this.$mode.$indentWithTabs;
-    };
-    this.setTabSize = function(tabSize) {
-        this.setOption("tabSize", tabSize);
-    };
-    this.getTabSize = function() {
-        return this.$tabSize;
-    };
-    this.isTabStop = function(position) {
-        return this.$useSoftTabs && (position.column % this.$tabSize === 0);
-    };
-
-    this.$overwrite = false;
-    this.setOverwrite = function(overwrite) {
-        this.setOption("overwrite", overwrite);
-    };
-    this.getOverwrite = function() {
-        return this.$overwrite;
-    };
-    this.toggleOverwrite = function() {
-        this.setOverwrite(!this.$overwrite);
-    };
-    this.addGutterDecoration = function(row, className) {
-        if (!this.$decorations[row])
-            this.$decorations[row] = "";
-        this.$decorations[row] += " " + className;
-        this._signal("changeBreakpoint", {});
-    };
-    this.removeGutterDecoration = function(row, className) {
-        this.$decorations[row] = (this.$decorations[row] || "").replace(" " + className, "");
-        this._signal("changeBreakpoint", {});
-    };
-    this.getBreakpoints = function() {
-        return this.$breakpoints;
-    };
-    this.setBreakpoints = function(rows) {
-        this.$breakpoints = [];
-        for (var i=0; i<rows.length; i++) {
-            this.$breakpoints[rows[i]] = "ace_breakpoint";
-        }
-        this._signal("changeBreakpoint", {});
-    };
-    this.clearBreakpoints = function() {
-        this.$breakpoints = [];
-        this._signal("changeBreakpoint", {});
-    };
-    this.setBreakpoint = function(row, className) {
-        if (className === undefined)
-            className = "ace_breakpoint";
-        if (className)
-            this.$breakpoints[row] = className;
-        else
-            delete this.$breakpoints[row];
-        this._signal("changeBreakpoint", {});
-    };
-    this.clearBreakpoint = function(row) {
-        delete this.$breakpoints[row];
-        this._signal("changeBreakpoint", {});
-    };
-    this.addMarker = function(range, clazz, type, inFront) {
-        var id = this.$markerId++;
-
-        var marker = {
-            range : range,
-            type : type || "line",
-            renderer: typeof type == "function" ? type : null,
-            clazz : clazz,
-            inFront: !!inFront,
-            id: id
-        };
-
-        if (inFront) {
-            this.$frontMarkers[id] = marker;
-            this._signal("changeFrontMarker");
-        } else {
-            this.$backMarkers[id] = marker;
-            this._signal("changeBackMarker");
-        }
-
-        return id;
-    };
-    this.addDynamicMarker = function(marker, inFront) {
-        if (!marker.update)
-            return;
-        var id = this.$markerId++;
-        marker.id = id;
-        marker.inFront = !!inFront;
-
-        if (inFront) {
-            this.$frontMarkers[id] = marker;
-            this._signal("changeFrontMarker");
-        } else {
-            this.$backMarkers[id] = marker;
-            this._signal("changeBackMarker");
-        }
-
-        return marker;
-    };
-    this.removeMarker = function(markerId) {
-        var marker = this.$frontMarkers[markerId] || this.$backMarkers[markerId];
-        if (!marker)
-            return;
-
-        var markers = marker.inFront ? this.$frontMarkers : this.$backMarkers;
-        if (marker) {
-            delete (markers[markerId]);
-            this._signal(marker.inFront ? "changeFrontMarker" : "changeBackMarker");
-        }
-    };
-    this.getMarkers = function(inFront) {
-        return inFront ? this.$frontMarkers : this.$backMarkers;
-    };
-
-    this.highlight = function(re) {
-        if (!this.$searchHighlight) {
-            var highlight = new SearchHighlight(null, "ace_selected-word", "text");
-            this.$searchHighlight = this.addDynamicMarker(highlight);
-        }
-        this.$searchHighlight.setRegexp(re);
-    };
-    this.highlightLines = function(startRow, endRow, clazz, inFront) {
-        if (typeof endRow != "number") {
-            clazz = endRow;
-            endRow = startRow;
-        }
-        if (!clazz)
-            clazz = "ace_step";
-
-        var range = new Range(startRow, 0, endRow, Infinity);
-        range.id = this.addMarker(range, clazz, "fullLine", inFront);
-        return range;
-    };
-    this.setAnnotations = function(annotations) {
-        this.$annotations = annotations;
-        this._signal("changeAnnotation", {});
-    };
-    this.getAnnotations = function() {
-        return this.$annotations || [];
-    };
-    this.clearAnnotations = function() {
-        this.setAnnotations([]);
-    };
-    this.$detectNewLine = function(text) {
-        var match = text.match(/^.*?(\r?\n)/m);
-        if (match) {
-            this.$autoNewLine = match[1];
-        } else {
-            this.$autoNewLine = "\n";
-        }
-    };
-    this.getWordRange = function(row, column) {
-        var line = this.getLine(row);
-
-        var inToken = false;
-        if (column > 0)
-            inToken = !!line.charAt(column - 1).match(this.tokenRe);
-
-        if (!inToken)
-            inToken = !!line.charAt(column).match(this.tokenRe);
-
-        if (inToken)
-            var re = this.tokenRe;
-        else if (/^\s+$/.test(line.slice(column-1, column+1)))
-            var re = /\s/;
-        else
-            var re = this.nonTokenRe;
-
-        var start = column;
-        if (start > 0) {
-            do {
-                start--;
-            }
-            while (start >= 0 && line.charAt(start).match(re));
-            start++;
-        }
-
-        var end = column;
-        while (end < line.length && line.charAt(end).match(re)) {
-            end++;
-        }
-
-        return new Range(row, start, row, end);
-    };
-    this.getAWordRange = function(row, column) {
-        var wordRange = this.getWordRange(row, column);
-        var line = this.getLine(wordRange.end.row);
-
-        while (line.charAt(wordRange.end.column).match(/[ \t]/)) {
-            wordRange.end.column += 1;
-        }
-        return wordRange;
-    };
-    this.setNewLineMode = function(newLineMode) {
-        this.doc.setNewLineMode(newLineMode);
-    };
-    this.getNewLineMode = function() {
-        return this.doc.getNewLineMode();
-    };
-    this.setUseWorker = function(useWorker) { this.setOption("useWorker", useWorker); };
-    this.getUseWorker = function() { return this.$useWorker; };
-    this.onReloadTokenizer = function(e) {
-        var rows = e.data;
-        this.bgTokenizer.start(rows.first);
-        this._signal("tokenizerUpdate", e);
-    };
-
-    this.$modes = {};
-    this.$mode = null;
-    this.$modeId = null;
-    this.setMode = function(mode, cb) {
-        if (mode && typeof mode === "object") {
-            if (mode.getTokenizer)
-                return this.$onChangeMode(mode);
-            var options = mode;
-            var path = options.path;
-        } else {
-            path = mode || "ace/mode/text";
-        }
-        if (!this.$modes["ace/mode/text"])
-            this.$modes["ace/mode/text"] = new TextMode();
-
-        if (this.$modes[path] && !options) {
-            this.$onChangeMode(this.$modes[path]);
-            cb && cb();
-            return;
-        }
-        this.$modeId = path;
-        config.loadModule(["mode", path], function(m) {
-            if (this.$modeId !== path)
-                return cb && cb();
-            if (this.$modes[path] && !options) {
-                this.$onChangeMode(this.$modes[path]);
-            } else if (m && m.Mode) {
-                m = new m.Mode(options);
-                if (!options) {
-                    this.$modes[path] = m;
-                    m.$id = path;
-                }
-                this.$onChangeMode(m);
-            }
-            cb && cb();
-        }.bind(this));
-        if (!this.$mode)
-            this.$onChangeMode(this.$modes["ace/mode/text"], true);
-    };
-
-    this.$onChangeMode = function(mode, $isPlaceholder) {
-        if (!$isPlaceholder)
-            this.$modeId = mode.$id;
-        if (this.$mode === mode)
-            return;
-
-        this.$mode = mode;
-
-        this.$stopWorker();
-
-        if (this.$useWorker)
-            this.$startWorker();
-
-        var tokenizer = mode.getTokenizer();
-
-        if(tokenizer.addEventListener !== undefined) {
-            var onReloadTokenizer = this.onReloadTokenizer.bind(this);
-            tokenizer.addEventListener("update", onReloadTokenizer);
-        }
-
-        if (!this.bgTokenizer) {
-            this.bgTokenizer = new BackgroundTokenizer(tokenizer);
-            var _self = this;
-            this.bgTokenizer.addEventListener("update", function(e) {
-                _self._signal("tokenizerUpdate", e);
-            });
-        } else {
-            this.bgTokenizer.setTokenizer(tokenizer);
-        }
-
-        this.bgTokenizer.setDocument(this.getDocument());
-
-        this.tokenRe = mode.tokenRe;
-        this.nonTokenRe = mode.nonTokenRe;
-
-
-        if (!$isPlaceholder) {
-            if (mode.attachToSession)
-                mode.attachToSession(this);
-            this.$options.wrapMethod.set.call(this, this.$wrapMethod);
-            this.$setFolding(mode.foldingRules);
-            this.bgTokenizer.start(0);
-            this._emit("changeMode");
-        }
-    };
-
-    this.$stopWorker = function() {
-        if (this.$worker) {
-            this.$worker.terminate();
-            this.$worker = null;
-        }
-    };
-
-    this.$startWorker = function() {
-        try {
-            this.$worker = this.$mode.createWorker(this);
-        } catch (e) {
-            config.warn("Could not load worker", e);
-            this.$worker = null;
-        }
-    };
-    this.getMode = function() {
-        return this.$mode;
-    };
-
-    this.$scrollTop = 0;
-    this.setScrollTop = function(scrollTop) {
-        if (this.$scrollTop === scrollTop || isNaN(scrollTop))
-            return;
-
-        this.$scrollTop = scrollTop;
-        this._signal("changeScrollTop", scrollTop);
-    };
-    this.getScrollTop = function() {
-        return this.$scrollTop;
-    };
-
-    this.$scrollLeft = 0;
-    this.setScrollLeft = function(scrollLeft) {
-        if (this.$scrollLeft === scrollLeft || isNaN(scrollLeft))
-            return;
-
-        this.$scrollLeft = scrollLeft;
-        this._signal("changeScrollLeft", scrollLeft);
-    };
-    this.getScrollLeft = function() {
-        return this.$scrollLeft;
-    };
-    this.getScreenWidth = function() {
-        this.$computeWidth();
-        if (this.lineWidgets)
-            return Math.max(this.getLineWidgetMaxWidth(), this.screenWidth);
-        return this.screenWidth;
-    };
-
-    this.getLineWidgetMaxWidth = function() {
-        if (this.lineWidgetsWidth != null) return this.lineWidgetsWidth;
-        var width = 0;
-        this.lineWidgets.forEach(function(w) {
-            if (w && w.screenWidth > width)
-                width = w.screenWidth;
-        });
-        return this.lineWidgetWidth = width;
-    };
-
-    this.$computeWidth = function(force) {
-        if (this.$modified || force) {
-            this.$modified = false;
-
-            if (this.$useWrapMode)
-                return this.screenWidth = this.$wrapLimit;
-
-            var lines = this.doc.getAllLines();
-            var cache = this.$rowLengthCache;
-            var longestScreenLine = 0;
-            var foldIndex = 0;
-            var foldLine = this.$foldData[foldIndex];
-            var foldStart = foldLine ? foldLine.start.row : Infinity;
-            var len = lines.length;
-
-            for (var i = 0; i < len; i++) {
-                if (i > foldStart) {
-                    i = foldLine.end.row + 1;
-                    if (i >= len)
-                        break;
-                    foldLine = this.$foldData[foldIndex++];
-                    foldStart = foldLine ? foldLine.start.row : Infinity;
-                }
-
-                if (cache[i] == null)
-                    cache[i] = this.$getStringScreenWidth(lines[i])[0];
-
-                if (cache[i] > longestScreenLine)
-                    longestScreenLine = cache[i];
-            }
-            this.screenWidth = longestScreenLine;
-        }
-    };
-    this.getLine = function(row) {
-        return this.doc.getLine(row);
-    };
-    this.getLines = function(firstRow, lastRow) {
-        return this.doc.getLines(firstRow, lastRow);
-    };
-    this.getLength = function() {
-        return this.doc.getLength();
-    };
-    this.getTextRange = function(range) {
-        return this.doc.getTextRange(range || this.selection.getRange());
-    };
-    this.insert = function(position, text) {
-        return this.doc.insert(position, text);
-    };
-    this.remove = function(range) {
-        return this.doc.remove(range);
-    };
-    this.removeFullLines = function(firstRow, lastRow){
-        return this.doc.removeFullLines(firstRow, lastRow);
-    };
-    this.undoChanges = function(deltas, dontSelect) {
-        if (!deltas.length)
-            return;
-
-        this.$fromUndo = true;
-        var lastUndoRange = null;
-        for (var i = deltas.length - 1; i != -1; i--) {
-            var delta = deltas[i];
-            if (delta.group == "doc") {
-                this.doc.revertDeltas(delta.deltas);
-                lastUndoRange =
-                    this.$getUndoSelection(delta.deltas, true, lastUndoRange);
-            } else {
-                delta.deltas.forEach(function(foldDelta) {
-                    this.addFolds(foldDelta.folds);
-                }, this);
-            }
-        }
-        this.$fromUndo = false;
-        lastUndoRange &&
-            this.$undoSelect &&
-            !dontSelect &&
-            this.selection.setSelectionRange(lastUndoRange);
-        return lastUndoRange;
-    };
-    this.redoChanges = function(deltas, dontSelect) {
-        if (!deltas.length)
-            return;
-
-        this.$fromUndo = true;
-        var lastUndoRange = null;
-        for (var i = 0; i < deltas.length; i++) {
-            var delta = deltas[i];
-            if (delta.group == "doc") {
-                this.doc.applyDeltas(delta.deltas);
-                lastUndoRange =
-                    this.$getUndoSelection(delta.deltas, false, lastUndoRange);
-            }
-        }
-        this.$fromUndo = false;
-        lastUndoRange &&
-            this.$undoSelect &&
-            !dontSelect &&
-            this.selection.setSelectionRange(lastUndoRange);
-        return lastUndoRange;
-    };
-    this.setUndoSelect = function(enable) {
-        this.$undoSelect = enable;
-    };
-
-    this.$getUndoSelection = function(deltas, isUndo, lastUndoRange) {
-        function isInsert(delta) {
-            return isUndo ? delta.action !== "insert" : delta.action === "insert";
-        }
-
-        var delta = deltas[0];
-        var range, point;
-        var lastDeltaIsInsert = false;
-        if (isInsert(delta)) {
-            range = Range.fromPoints(delta.start, delta.end);
-            lastDeltaIsInsert = true;
-        } else {
-            range = Range.fromPoints(delta.start, delta.start);
-            lastDeltaIsInsert = false;
-        }
-
-        for (var i = 1; i < deltas.length; i++) {
-            delta = deltas[i];
-            if (isInsert(delta)) {
-                point = delta.start;
-                if (range.compare(point.row, point.column) == -1) {
-                    range.setStart(point);
-                }
-                point = delta.end;
-                if (range.compare(point.row, point.column) == 1) {
-                    range.setEnd(point);
-                }
-                lastDeltaIsInsert = true;
-            } else {
-                point = delta.start;
-                if (range.compare(point.row, point.column) == -1) {
-                    range = Range.fromPoints(delta.start, delta.start);
-                }
-                lastDeltaIsInsert = false;
-            }
-        }
-        if (lastUndoRange != null) {
-            if (Range.comparePoints(lastUndoRange.start, range.start) === 0) {
-                lastUndoRange.start.column += range.end.column - range.start.column;
-                lastUndoRange.end.column += range.end.column - range.start.column;
-            }
-
-            var cmp = lastUndoRange.compareRange(range);
-            if (cmp == 1) {
-                range.setStart(lastUndoRange.start);
-            } else if (cmp == -1) {
-                range.setEnd(lastUndoRange.end);
-            }
-        }
-
-        return range;
-    };
-    this.replace = function(range, text) {
-        return this.doc.replace(range, text);
-    };
-    this.moveText = function(fromRange, toPosition, copy) {
-        var text = this.getTextRange(fromRange);
-        var folds = this.getFoldsInRange(fromRange);
-
-        var toRange = Range.fromPoints(toPosition, toPosition);
-        if (!copy) {
-            this.remove(fromRange);
-            var rowDiff = fromRange.start.row - fromRange.end.row;
-            var collDiff = rowDiff ? -fromRange.end.column : fromRange.start.column - fromRange.end.column;
-            if (collDiff) {
-                if (toRange.start.row == fromRange.end.row && toRange.start.column > fromRange.end.column)
-                    toRange.start.column += collDiff;
-                if (toRange.end.row == fromRange.end.row && toRange.end.column > fromRange.end.column)
-                    toRange.end.column += collDiff;
-            }
-            if (rowDiff && toRange.start.row >= fromRange.end.row) {
-                toRange.start.row += rowDiff;
-                toRange.end.row += rowDiff;
-            }
-        }
-
-        toRange.end = this.insert(toRange.start, text);
-        if (folds.length) {
-            var oldStart = fromRange.start;
-            var newStart = toRange.start;
-            var rowDiff = newStart.row - oldStart.row;
-            var collDiff = newStart.column - oldStart.column;
-            this.addFolds(folds.map(function(x) {
-                x = x.clone();
-                if (x.start.row == oldStart.row)
-                    x.start.column += collDiff;
-                if (x.end.row == oldStart.row)
-                    x.end.column += collDiff;
-                x.start.row += rowDiff;
-                x.end.row += rowDiff;
-                return x;
-            }));
-        }
-
-        return toRange;
-    };
-    this.indentRows = function(startRow, endRow, indentString) {
-        indentString = indentString.replace(/\t/g, this.getTabString());
-        for (var row=startRow; row<=endRow; row++)
-            this.doc.insertInLine({row: row, column: 0}, indentString);
-    };
-    this.outdentRows = function (range) {
-        var rowRange = range.collapseRows();
-        var deleteRange = new Range(0, 0, 0, 0);
-        var size = this.getTabSize();
-
-        for (var i = rowRange.start.row; i <= rowRange.end.row; ++i) {
-            var line = this.getLine(i);
-
-            deleteRange.start.row = i;
-            deleteRange.end.row = i;
-            for (var j = 0; j < size; ++j)
-                if (line.charAt(j) != ' ')
-                    break;
-            if (j < size && line.charAt(j) == '\t') {
-                deleteRange.start.column = j;
-                deleteRange.end.column = j + 1;
-            } else {
-                deleteRange.start.column = 0;
-                deleteRange.end.column = j;
-            }
-            this.remove(deleteRange);
-        }
-    };
-
-    this.$moveLines = function(firstRow, lastRow, dir) {
-        firstRow = this.getRowFoldStart(firstRow);
-        lastRow = this.getRowFoldEnd(lastRow);
-        if (dir < 0) {
-            var row = this.getRowFoldStart(firstRow + dir);
-            if (row < 0) return 0;
-            var diff = row-firstRow;
-        } else if (dir > 0) {
-            var row = this.getRowFoldEnd(lastRow + dir);
-            if (row > this.doc.getLength()-1) return 0;
-            var diff = row-lastRow;
-        } else {
-            firstRow = this.$clipRowToDocument(firstRow);
-            lastRow = this.$clipRowToDocument(lastRow);
-            var diff = lastRow - firstRow + 1;
-        }
-
-        var range = new Range(firstRow, 0, lastRow, Number.MAX_VALUE);
-        var folds = this.getFoldsInRange(range).map(function(x){
-            x = x.clone();
-            x.start.row += diff;
-            x.end.row += diff;
-            return x;
-        });
-
-        var lines = dir == 0
-            ? this.doc.getLines(firstRow, lastRow)
-            : this.doc.removeFullLines(firstRow, lastRow);
-        this.doc.insertFullLines(firstRow+diff, lines);
-        folds.length && this.addFolds(folds);
-        return diff;
-    };
-    this.moveLinesUp = function(firstRow, lastRow) {
-        return this.$moveLines(firstRow, lastRow, -1);
-    };
-    this.moveLinesDown = function(firstRow, lastRow) {
-        return this.$moveLines(firstRow, lastRow, 1);
-    };
-    this.duplicateLines = function(firstRow, lastRow) {
-        return this.$moveLines(firstRow, lastRow, 0);
-    };
-
-
-    this.$clipRowToDocument = function(row) {
-        return Math.max(0, Math.min(row, this.doc.getLength()-1));
-    };
-
-    this.$clipColumnToRow = function(row, column) {
-        if (column < 0)
-            return 0;
-        return Math.min(this.doc.getLine(row).length, column);
-    };
-
-
-    this.$clipPositionToDocument = function(row, column) {
-        column = Math.max(0, column);
-
-        if (row < 0) {
-            row = 0;
-            column = 0;
-        } else {
-            var len = this.doc.getLength();
-            if (row >= len) {
-                row = len - 1;
-                column = this.doc.getLine(len-1).length;
-            } else {
-                column = Math.min(this.doc.getLine(row).length, column);
-            }
-        }
-
-        return {
-            row: row,
-            column: column
-        };
-    };
-
-    this.$clipRangeToDocument = function(range) {
-        if (range.start.row < 0) {
-            range.start.row = 0;
-            range.start.column = 0;
-        } else {
-            range.start.column = this.$clipColumnToRow(
-                range.start.row,
-                range.start.column
-            );
-        }
-
-        var len = this.doc.getLength() - 1;
-        if (range.end.row > len) {
-            range.end.row = len;
-            range.end.column = this.doc.getLine(len).length;
-        } else {
-            range.end.column = this.$clipColumnToRow(
-                range.end.row,
-                range.end.column
-            );
-        }
-        return range;
-    };
-    this.$wrapLimit = 80;
-    this.$useWrapMode = false;
-    this.$wrapLimitRange = {
-        min : null,
-        max : null
-    };
-    this.setUseWrapMode = function(useWrapMode) {
-        if (useWrapMode != this.$useWrapMode) {
-            this.$useWrapMode = useWrapMode;
-            this.$modified = true;
-            this.$resetRowCache(0);
-            if (useWrapMode) {
-                var len = this.getLength();
-                this.$wrapData = Array(len);
-                this.$updateWrapData(0, len - 1);
-            }
-
-            this._signal("changeWrapMode");
-        }
-    };
-    this.getUseWrapMode = function() {
-        return this.$useWrapMode;
-    };
-    this.setWrapLimitRange = function(min, max) {
-        if (this.$wrapLimitRange.min !== min || this.$wrapLimitRange.max !== max) {
-            this.$wrapLimitRange = { min: min, max: max };
-            this.$modified = true;
-            if (this.$useWrapMode)
-                this._signal("changeWrapMode");
-        }
-    };
-    this.adjustWrapLimit = function(desiredLimit, $printMargin) {
-        var limits = this.$wrapLimitRange;
-        if (limits.max < 0)
-            limits = {min: $printMargin, max: $printMargin};
-        var wrapLimit = this.$constrainWrapLimit(desiredLimit, limits.min, limits.max);
-        if (wrapLimit != this.$wrapLimit && wrapLimit > 1) {
-            this.$wrapLimit = wrapLimit;
-            this.$modified = true;
-            if (this.$useWrapMode) {
-                this.$updateWrapData(0, this.getLength() - 1);
-                this.$resetRowCache(0);
-                this._signal("changeWrapLimit");
-            }
-            return true;
-        }
-        return false;
-    };
-
-    this.$constrainWrapLimit = function(wrapLimit, min, max) {
-        if (min)
-            wrapLimit = Math.max(min, wrapLimit);
-
-        if (max)
-            wrapLimit = Math.min(max, wrapLimit);
-
-        return wrapLimit;
-    };
-    this.getWrapLimit = function() {
-        return this.$wrapLimit;
-    };
-    this.setWrapLimit = function (limit) {
-        this.setWrapLimitRange(limit, limit);
-    };
-    this.getWrapLimitRange = function() {
-        return {
-            min : this.$wrapLimitRange.min,
-            max : this.$wrapLimitRange.max
-        };
-    };
-
-    this.$updateInternalDataOnChange = function(delta) {
-        var useWrapMode = this.$useWrapMode;
-        var action = delta.action;
-        var start = delta.start;
-        var end = delta.end;
-        var firstRow = start.row;
-        var lastRow = end.row;
-        var len = lastRow - firstRow;
-        var removedFolds = null;
-
-        this.$updating = true;
-        if (len != 0) {
-            if (action === "remove") {
-                this[useWrapMode ? "$wrapData" : "$rowLengthCache"].splice(firstRow, len);
-
-                var foldLines = this.$foldData;
-                removedFolds = this.getFoldsInRange(delta);
-                this.removeFolds(removedFolds);
-
-                var foldLine = this.getFoldLine(end.row);
-                var idx = 0;
-                if (foldLine) {
-                    foldLine.addRemoveChars(end.row, end.column, start.column - end.column);
-                    foldLine.shiftRow(-len);
-
-                    var foldLineBefore = this.getFoldLine(firstRow);
-                    if (foldLineBefore && foldLineBefore !== foldLine) {
-                        foldLineBefore.merge(foldLine);
-                        foldLine = foldLineBefore;
-                    }
-                    idx = foldLines.indexOf(foldLine) + 1;
-                }
-
-                for (idx; idx < foldLines.length; idx++) {
-                    var foldLine = foldLines[idx];
-                    if (foldLine.start.row >= end.row) {
-                        foldLine.shiftRow(-len);
-                    }
-                }
-
-                lastRow = firstRow;
-            } else {
-                var args = Array(len);
-                args.unshift(firstRow, 0);
-                var arr = useWrapMode ? this.$wrapData : this.$rowLengthCache
-                arr.splice.apply(arr, args);
-                var foldLines = this.$foldData;
-                var foldLine = this.getFoldLine(firstRow);
-                var idx = 0;
-                if (foldLine) {
-                    var cmp = foldLine.range.compareInside(start.row, start.column);
-                    if (cmp == 0) {
-                        foldLine = foldLine.split(start.row, start.column);
-                        if (foldLine) {
-                            foldLine.shiftRow(len);
-                            foldLine.addRemoveChars(lastRow, 0, end.column - start.column);
-                        }
-                    } else
-                    if (cmp == -1) {
-                        foldLine.addRemoveChars(firstRow, 0, end.column - start.column);
-                        foldLine.shiftRow(len);
-                    }
-                    idx = foldLines.indexOf(foldLine) + 1;
-                }
-
-                for (idx; idx < foldLines.length; idx++) {
-                    var foldLine = foldLines[idx];
-                    if (foldLine.start.row >= firstRow) {
-                        foldLine.shiftRow(len);
-                    }
-                }
-            }
-        } else {
-            len = Math.abs(delta.start.column - delta.end.column);
-            if (action === "remove") {
-                removedFolds = this.getFoldsInRange(delta);
-                this.removeFolds(removedFolds);
-
-                len = -len;
-            }
-            var foldLine = this.getFoldLine(firstRow);
-            if (foldLine) {
-                foldLine.addRemoveChars(firstRow, start.column, len);
-            }
-        }
-
-        if (useWrapMode && this.$wrapData.length != this.doc.getLength()) {
-            console.error("doc.getLength() and $wrapData.length have to be the same!");
-        }
-        this.$updating = false;
-
-        if (useWrapMode)
-            this.$updateWrapData(firstRow, lastRow);
-        else
-            this.$updateRowLengthCache(firstRow, lastRow);
-
-        return removedFolds;
-    };
-
-    this.$updateRowLengthCache = function(firstRow, lastRow, b) {
-        this.$rowLengthCache[firstRow] = null;
-        this.$rowLengthCache[lastRow] = null;
-    };
-
-    this.$updateWrapData = function(firstRow, lastRow) {
-        var lines = this.doc.getAllLines();
-        var tabSize = this.getTabSize();
-        var wrapData = this.$wrapData;
-        var wrapLimit = this.$wrapLimit;
-        var tokens;
-        var foldLine;
-
-        var row = firstRow;
-        lastRow = Math.min(lastRow, lines.length - 1);
-        while (row <= lastRow) {
-            foldLine = this.getFoldLine(row, foldLine);
-            if (!foldLine) {
-                tokens = this.$getDisplayTokens(lines[row]);
-                wrapData[row] = this.$computeWrapSplits(tokens, wrapLimit, tabSize);
-                row ++;
-            } else {
-                tokens = [];
-                foldLine.walk(function(placeholder, row, column, lastColumn) {
-                        var walkTokens;
-                        if (placeholder != null) {
-                            walkTokens = this.$getDisplayTokens(
-                                            placeholder, tokens.length);
-                            walkTokens[0] = PLACEHOLDER_START;
-                            for (var i = 1; i < walkTokens.length; i++) {
-                                walkTokens[i] = PLACEHOLDER_BODY;
-                            }
-                        } else {
-                            walkTokens = this.$getDisplayTokens(
-                                lines[row].substring(lastColumn, column),
-                                tokens.length);
-                        }
-                        tokens = tokens.concat(walkTokens);
-                    }.bind(this),
-                    foldLine.end.row,
-                    lines[foldLine.end.row].length + 1
-                );
-
-                wrapData[foldLine.start.row] = this.$computeWrapSplits(tokens, wrapLimit, tabSize);
-                row = foldLine.end.row + 1;
-            }
-        }
-    };
-    var CHAR = 1,
-        CHAR_EXT = 2,
-        PLACEHOLDER_START = 3,
-        PLACEHOLDER_BODY =  4,
-        PUNCTUATION = 9,
-        SPACE = 10,
-        TAB = 11,
-        TAB_SPACE = 12;
-
-
-    this.$computeWrapSplits = function(tokens, wrapLimit, tabSize) {
-        if (tokens.length == 0) {
-            return [];
-        }
-
-        var splits = [];
-        var displayLength = tokens.length;
-        var lastSplit = 0, lastDocSplit = 0;
-
-        var isCode = this.$wrapAsCode;
-
-        var indentedSoftWrap = this.$indentedSoftWrap;
-        var maxIndent = wrapLimit <= Math.max(2 * tabSize, 8)
-            || indentedSoftWrap === false ? 0 : Math.floor(wrapLimit / 2);
-
-        function getWrapIndent() {
-            var indentation = 0;
-            if (maxIndent === 0)
-                return indentation;
-            if (indentedSoftWrap) {
-                for (var i = 0; i < tokens.length; i++) {
-                    var token = tokens[i];
-                    if (token == SPACE)
-                        indentation += 1;
-                    else if (token == TAB)
-                        indentation += tabSize;
-                    else if (token == TAB_SPACE)
-                        continue;
-                    else
-                        break;
-                }
-            }
-            if (isCode && indentedSoftWrap !== false)
-                indentation += tabSize;
-            return Math.min(indentation, maxIndent);
-        }
-        function addSplit(screenPos) {
-            var displayed = tokens.slice(lastSplit, screenPos);
-            var len = displayed.length;
-            displayed.join("")
-                .replace(/12/g, function() {
-                    len -= 1;
-                })
-                .replace(/2/g, function() {
-                    len -= 1;
-                });
-
-            if (!splits.length) {
-                indent = getWrapIndent();
-                splits.indent = indent;
-            }
-            lastDocSplit += len;
-            splits.push(lastDocSplit);
-            lastSplit = screenPos;
-        }
-        var indent = 0;
-        while (displayLength - lastSplit > wrapLimit - indent) {
-            var split = lastSplit + wrapLimit - indent;
-            if (tokens[split - 1] >= SPACE && tokens[split] >= SPACE) {
-                addSplit(split);
-                continue;
-            }
-            if (tokens[split] == PLACEHOLDER_START || tokens[split] == PLACEHOLDER_BODY) {
-                for (split; split != lastSplit - 1; split--) {
-                    if (tokens[split] == PLACEHOLDER_START) {
-                        break;
-                    }
-                }
-                if (split > lastSplit) {
-                    addSplit(split);
-                    continue;
-                }
-                split = lastSplit + wrapLimit;
-                for (split; split < tokens.length; split++) {
-                    if (tokens[split] != PLACEHOLDER_BODY) {
-                        break;
-                    }
-                }
-                if (split == tokens.length) {
-                    break;  // Breaks the while-loop.
-                }
-                addSplit(split);
-                continue;
-            }
-            var minSplit = Math.max(split - (wrapLimit -(wrapLimit>>2)), lastSplit - 1);
-            while (split > minSplit && tokens[split] < PLACEHOLDER_START) {
-                split --;
-            }
-            if (isCode) {
-                while (split > minSplit && tokens[split] < PLACEHOLDER_START) {
-                    split --;
-                }
-                while (split > minSplit && tokens[split] == PUNCTUATION) {
-                    split --;
-                }
-            } else {
-                while (split > minSplit && tokens[split] < SPACE) {
-                    split --;
-                }
-            }
-            if (split > minSplit) {
-                addSplit(++split);
-                continue;
-            }
-            split = lastSplit + wrapLimit;
-            if (tokens[split] == CHAR_EXT)
-                split--;
-            addSplit(split - indent);
-        }
-        return splits;
-    };
-    this.$getDisplayTokens = function(str, offset) {
-        var arr = [];
-        var tabSize;
-        offset = offset || 0;
-
-        for (var i = 0; i < str.length; i++) {
-            var c = str.charCodeAt(i);
-            if (c == 9) {
-                tabSize = this.getScreenTabSize(arr.length + offset);
-                arr.push(TAB);
-                for (var n = 1; n < tabSize; n++) {
-                    arr.push(TAB_SPACE);
-                }
-            }
-            else if (c == 32) {
-                arr.push(SPACE);
-            } else if((c > 39 && c < 48) || (c > 57 && c < 64)) {
-                arr.push(PUNCTUATION);
-            }
-            else if (c >= 0x1100 && isFullWidth(c)) {
-                arr.push(CHAR, CHAR_EXT);
-            } else {
-                arr.push(CHAR);
-            }
-        }
-        return arr;
-    };
-    this.$getStringScreenWidth = function(str, maxScreenColumn, screenColumn) {
-        if (maxScreenColumn == 0)
-            return [0, 0];
-        if (maxScreenColumn == null)
-            maxScreenColumn = Infinity;
-        screenColumn = screenColumn || 0;
-
-        var c, column;
-        for (column = 0; column < str.length; column++) {
-            c = str.charCodeAt(column);
-            if (c == 9) {
-                screenColumn += this.getScreenTabSize(screenColumn);
-            }
-            else if (c >= 0x1100 && isFullWidth(c)) {
-                screenColumn += 2;
-            } else {
-                screenColumn += 1;
-            }
-            if (screenColumn > maxScreenColumn) {
-                break;
-            }
-        }
-
-        return [screenColumn, column];
-    };
-
-    this.lineWidgets = null;
-    this.getRowLength = function(row) {
-        if (this.lineWidgets)
-            var h = this.lineWidgets[row] && this.lineWidgets[row].rowCount || 0;
-        else
-            h = 0
-        if (!this.$useWrapMode || !this.$wrapData[row]) {
-            return 1 + h;
-        } else {
-            return this.$wrapData[row].length + 1 + h;
-        }
-    };
-    this.getRowLineCount = function(row) {
-        if (!this.$useWrapMode || !this.$wrapData[row]) {
-            return 1;
-        } else {
-            return this.$wrapData[row].length + 1;
-        }
-    };
-
-    this.getRowWrapIndent = function(screenRow) {
-        if (this.$useWrapMode) {
-            var pos = this.screenToDocumentPosition(screenRow, Number.MAX_VALUE);
-            var splits = this.$wrapData[pos.row];
-            return splits.length && splits[0] < pos.column ? splits.indent : 0;
-        } else {
-            return 0;
-        }
-    }
-    this.getScreenLastRowColumn = function(screenRow) {
-        var pos = this.screenToDocumentPosition(screenRow, Number.MAX_VALUE);
-        return this.documentToScreenColumn(pos.row, pos.column);
-    };
-    this.getDocumentLastRowColumn = function(docRow, docColumn) {
-        var screenRow = this.documentToScreenRow(docRow, docColumn);
-        return this.getScreenLastRowColumn(screenRow);
-    };
-    this.getDocumentLastRowColumnPosition = function(docRow, docColumn) {
-        var screenRow = this.documentToScreenRow(docRow, docColumn);
-        return this.screenToDocumentPosition(screenRow, Number.MAX_VALUE / 10);
-    };
-    this.getRowSplitData = function(row) {
-        if (!this.$useWrapMode) {
-            return undefined;
-        } else {
-            return this.$wrapData[row];
-        }
-    };
-    this.getScreenTabSize = function(screenColumn) {
-        return this.$tabSize - screenColumn % this.$tabSize;
-    };
-
-
-    this.screenToDocumentRow = function(screenRow, screenColumn) {
-        return this.screenToDocumentPosition(screenRow, screenColumn).row;
-    };
-
-
-    this.screenToDocumentColumn = function(screenRow, screenColumn) {
-        return this.screenToDocumentPosition(screenRow, screenColumn).column;
-    };
-    this.screenToDocumentPosition = function(screenRow, screenColumn) {
-        if (screenRow < 0)
-            return {row: 0, column: 0};
-
-        var line;
-        var docRow = 0;
-        var docColumn = 0;
-        var column;
-        var row = 0;
-        var rowLength = 0;
-
-        var rowCache = this.$screenRowCache;
-        var i = this.$getRowCacheIndex(rowCache, screenRow);
-        var l = rowCache.length;
-        if (l && i >= 0) {
-            var row = rowCache[i];
-            var docRow = this.$docRowCache[i];
-            var doCache = screenRow > rowCache[l - 1];
-        } else {
-            var doCache = !l;
-        }
-
-        var maxRow = this.getLength() - 1;
-        var foldLine = this.getNextFoldLine(docRow);
-        var foldStart = foldLine ? foldLine.start.row : Infinity;
-
-        while (row <= screenRow) {
-            rowLength = this.getRowLength(docRow);
-            if (row + rowLength > screenRow || docRow >= maxRow) {
-                break;
-            } else {
-                row += rowLength;
-                docRow++;
-                if (docRow > foldStart) {
-                    docRow = foldLine.end.row+1;
-                    foldLine = this.getNextFoldLine(docRow, foldLine);
-                    foldStart = foldLine ? foldLine.start.row : Infinity;
-                }
-            }
-
-            if (doCache) {
-                this.$docRowCache.push(docRow);
-                this.$screenRowCache.push(row);
-            }
-        }
-
-        if (foldLine && foldLine.start.row <= docRow) {
-            line = this.getFoldDisplayLine(foldLine);
-            docRow = foldLine.start.row;
-        } else if (row + rowLength <= screenRow || docRow > maxRow) {
-            return {
-                row: maxRow,
-                column: this.getLine(maxRow).length
-            };
-        } else {
-            line = this.getLine(docRow);
-            foldLine = null;
-        }
-        var wrapIndent = 0;
-        if (this.$useWrapMode) {
-            var splits = this.$wrapData[docRow];
-            if (splits) {
-                var splitIndex = Math.floor(screenRow - row);
-                column = splits[splitIndex];
-                if(splitIndex > 0 && splits.length) {
-                    wrapIndent = splits.indent;
-                    docColumn = splits[splitIndex - 1] || splits[splits.length - 1];
-                    line = line.substring(docColumn);
-                }
-            }
-        }
-
-        docColumn += this.$getStringScreenWidth(line, screenColumn - wrapIndent)[1];
-        if (this.$useWrapMode && docColumn >= column)
-            docColumn = column - 1;
-
-        if (foldLine)
-            return foldLine.idxToPosition(docColumn);
-
-        return {row: docRow, column: docColumn};
-    };
-    this.documentToScreenPosition = function(docRow, docColumn) {
-        if (typeof docColumn === "undefined")
-            var pos = this.$clipPositionToDocument(docRow.row, docRow.column);
-        else
-            pos = this.$clipPositionToDocument(docRow, docColumn);
-
-        docRow = pos.row;
-        docColumn = pos.column;
-
-        var screenRow = 0;
-        var foldStartRow = null;
-        var fold = null;
-        fold = this.getFoldAt(docRow, docColumn, 1);
-        if (fold) {
-            docRow = fold.start.row;
-            docColumn = fold.start.column;
-        }
-
-        var rowEnd, row = 0;
-
-
-        var rowCache = this.$docRowCache;
-        var i = this.$getRowCacheIndex(rowCache, docRow);
-        var l = rowCache.length;
-        if (l && i >= 0) {
-            var row = rowCache[i];
-            var screenRow = this.$screenRowCache[i];
-            var doCache = docRow > rowCache[l - 1];
-        } else {
-            var doCache = !l;
-        }
-
-        var foldLine = this.getNextFoldLine(row);
-        var foldStart = foldLine ?foldLine.start.row :Infinity;
-
-        while (row < docRow) {
-            if (row >= foldStart) {
-                rowEnd = foldLine.end.row + 1;
-                if (rowEnd > docRow)
-                    break;
-                foldLine = this.getNextFoldLine(rowEnd, foldLine);
-                foldStart = foldLine ?foldLine.start.row :Infinity;
-            }
-            else {
-                rowEnd = row + 1;
-            }
-
-            screenRow += this.getRowLength(row);
-            row = rowEnd;
-
-            if (doCache) {
-                this.$docRowCache.push(row);
-                this.$screenRowCache.push(screenRow);
-            }
-        }
-        var textLine = "";
-        if (foldLine && row >= foldStart) {
-            textLine = this.getFoldDisplayLine(foldLine, docRow, docColumn);
-            foldStartRow = foldLine.start.row;
-        } else {
-            textLine = this.getLine(docRow).substring(0, docColumn);
-            foldStartRow = docRow;
-        }
-        var wrapIndent = 0;
-        if (this.$useWrapMode) {
-            var wrapRow = this.$wrapData[foldStartRow];
-            if (wrapRow) {
-                var screenRowOffset = 0;
-                while (textLine.length >= wrapRow[screenRowOffset]) {
-                    screenRow ++;
-                    screenRowOffset++;
-                }
-                textLine = textLine.substring(
-                    wrapRow[screenRowOffset - 1] || 0, textLine.length
-                );
-                wrapIndent = screenRowOffset > 0 ? wrapRow.indent : 0;
-            }
-        }
-
-        return {
-            row: screenRow,
-            column: wrapIndent + this.$getStringScreenWidth(textLine)[0]
-        };
-    };
-    this.documentToScreenColumn = function(row, docColumn) {
-        return this.documentToScreenPosition(row, docColumn).column;
-    };
-    this.documentToScreenRow = function(docRow, docColumn) {
-        return this.documentToScreenPosition(docRow, docColumn).row;
-    };
-    this.getScreenLength = function() {
-        var screenRows = 0;
-        var fold = null;
-        if (!this.$useWrapMode) {
-            screenRows = this.getLength();
-            var foldData = this.$foldData;
-            for (var i = 0; i < foldData.length; i++) {
-                fold = foldData[i];
-                screenRows -= fold.end.row - fold.start.row;
-            }
-        } else {
-            var lastRow = this.$wrapData.length;
-            var row = 0, i = 0;
-            var fold = this.$foldData[i++];
-            var foldStart = fold ? fold.start.row :Infinity;
-
-            while (row < lastRow) {
-                var splits = this.$wrapData[row];
-                screenRows += splits ? splits.length + 1 : 1;
-                row ++;
-                if (row > foldStart) {
-                    row = fold.end.row+1;
-                    fold = this.$foldData[i++];
-                    foldStart = fold ?fold.start.row :Infinity;
-                }
-            }
-        }
-        if (this.lineWidgets)
-            screenRows += this.$getWidgetScreenLength();
-
-        return screenRows;
-    };
-    this.$setFontMetrics = function(fm) {
-        if (!this.$enableVarChar) return;
-        this.$getStringScreenWidth = function(str, maxScreenColumn, screenColumn) {
-            if (maxScreenColumn === 0)
-                return [0, 0];
-            if (!maxScreenColumn)
-                maxScreenColumn = Infinity;
-            screenColumn = screenColumn || 0;
-
-            var c, column;
-            for (column = 0; column < str.length; column++) {
-                c = str.charAt(column);
-                if (c === "\t") {
-                    screenColumn += this.getScreenTabSize(screenColumn);
-                } else {
-                    screenColumn += fm.getCharacterWidth(c);
-                }
-                if (screenColumn > maxScreenColumn) {
-                    break;
-                }
-            }
-
-            return [screenColumn, column];
-        };
-    };
-
-    this.destroy = function() {
-        if (this.bgTokenizer) {
-            this.bgTokenizer.setDocument(null);
-            this.bgTokenizer = null;
-        }
-        this.$stopWorker();
-    };
-    function isFullWidth(c) {
-        if (c < 0x1100)
-            return false;
-        return c >= 0x1100 && c <= 0x115F ||
-               c >= 0x11A3 && c <= 0x11A7 ||
-               c >= 0x11FA && c <= 0x11FF ||
-               c >= 0x2329 && c <= 0x232A ||
-               c >= 0x2E80 && c <= 0x2E99 ||
-               c >= 0x2E9B && c <= 0x2EF3 ||
-               c >= 0x2F00 && c <= 0x2FD5 ||
-               c >= 0x2FF0 && c <= 0x2FFB ||
-               c >= 0x3000 && c <= 0x303E ||
-               c >= 0x3041 && c <= 0x3096 ||
-               c >= 0x3099 && c <= 0x30FF ||
-               c >= 0x3105 && c <= 0x312D ||
-               c >= 0x3131 && c <= 0x318E ||
-               c >= 0x3190 && c <= 0x31BA ||
-               c >= 0x31C0 && c <= 0x31E3 ||
-               c >= 0x31F0 && c <= 0x321E ||
-               c >= 0x3220 && c <= 0x3247 ||
-               c >= 0x3250 && c <= 0x32FE ||
-               c >= 0x3300 && c <= 0x4DBF ||
-               c >= 0x4E00 && c <= 0xA48C ||
-               c >= 0xA490 && c <= 0xA4C6 ||
-               c >= 0xA960 && c <= 0xA97C ||
-               c >= 0xAC00 && c <= 0xD7A3 ||
-               c >= 0xD7B0 && c <= 0xD7C6 ||
-               c >= 0xD7CB && c <= 0xD7FB ||
-               c >= 0xF900 && c <= 0xFAFF ||
-               c >= 0xFE10 && c <= 0xFE19 ||
-               c >= 0xFE30 && c <= 0xFE52 ||
-               c >= 0xFE54 && c <= 0xFE66 ||
-               c >= 0xFE68 && c <= 0xFE6B ||
-               c >= 0xFF01 && c <= 0xFF60 ||
-               c >= 0xFFE0 && c <= 0xFFE6;
-    }
-
-}).call(EditSession.prototype);
-
-require("./edit_session/folding").Folding.call(EditSession.prototype);
-require("./edit_session/bracket_match").BracketMatch.call(EditSession.prototype);
-
-
-config.defineOptions(EditSession.prototype, "session", {
-    wrap: {
-        set: function(value) {
-            if (!value || value == "off")
-                value = false;
-            else if (value == "free")
-                value = true;
-            else if (value == "printMargin")
-                value = -1;
-            else if (typeof value == "string")
-                value = parseInt(value, 10) || false;
-
-            if (this.$wrap == value)
-                return;
-            this.$wrap = value;
-            if (!value) {
-                this.setUseWrapMode(false);
-            } else {
-                var col = typeof value == "number" ? value : null;
-                this.setWrapLimitRange(col, col);
-                this.setUseWrapMode(true);
-            }
-        },
-        get: function() {
-            if (this.getUseWrapMode()) {
-                if (this.$wrap == -1)
-                    return "printMargin";
-                if (!this.getWrapLimitRange().min)
-                    return "free";
-                return this.$wrap;
-            }
-            return "off";
-        },
-        handlesSet: true
-    },
-    wrapMethod: {
-        set: function(val) {
-            val = val == "auto"
-                ? this.$mode.type != "text"
-                : val != "text";
-            if (val != this.$wrapAsCode) {
-                this.$wrapAsCode = val;
-                if (this.$useWrapMode) {
-                    this.$modified = true;
-                    this.$resetRowCache(0);
-                    this.$updateWrapData(0, this.getLength() - 1);
-                }
-            }
-        },
-        initialValue: "auto"
-    },
-    indentedSoftWrap: { initialValue: true },
-    firstLineNumber: {
-        set: function() {this._signal("changeBreakpoint");},
-        initialValue: 1
-    },
-    useWorker: {
-        set: function(useWorker) {
-            this.$useWorker = useWorker;
-
-            this.$stopWorker();
-            if (useWorker)
-                this.$startWorker();
-        },
-        initialValue: true
-    },
-    useSoftTabs: {initialValue: true},
-    tabSize: {
-        set: function(tabSize) {
-            if (isNaN(tabSize) || this.$tabSize === tabSize) return;
-
-            this.$modified = true;
-            this.$rowLengthCache = [];
-            this.$tabSize = tabSize;
-            this._signal("changeTabSize");
-        },
-        initialValue: 4,
-        handlesSet: true
-    },
-    overwrite: {
-        set: function(val) {this._signal("changeOverwrite");},
-        initialValue: false
-    },
-    newLineMode: {
-        set: function(val) {this.doc.setNewLineMode(val)},
-        get: function() {return this.doc.getNewLineMode()},
-        handlesSet: true
-    },
-    mode: {
-        set: function(val) { this.setMode(val) },
-        get: function() { return this.$modeId }
-    }
-});
-
-exports.EditSession = EditSession;
-});
-
-ace.define("ace/search",["require","exports","module","ace/lib/lang","ace/lib/oop","ace/range"], function(require, exports, module) {
-"use strict";
-
-var lang = require("./lib/lang");
-var oop = require("./lib/oop");
-var Range = require("./range").Range;
-
-var Search = function() {
-    this.$options = {};
-};
-
-(function() {
-    this.set = function(options) {
-        oop.mixin(this.$options, options);
-        return this;
-    };
-    this.getOptions = function() {
-        return lang.copyObject(this.$options);
-    };
-    this.setOptions = function(options) {
-        this.$options = options;
-    };
-    this.find = function(session) {
-        var options = this.$options;
-        var iterator = this.$matchIterator(session, options);
-        if (!iterator)
-            return false;
-
-        var firstRange = null;
-        iterator.forEach(function(range, row, offset) {
-            if (!range.start) {
-                var column = range.offset + (offset || 0);
-                firstRange = new Range(row, column, row, column + range.length);
-                if (!range.length && options.start && options.start.start
-                    && options.skipCurrent != false && firstRange.isEqual(options.start)
-                ) {
-                    firstRange = null;
-                    return false;
-                }
-            } else
-                firstRange = range;
-            return true;
-        });
-
-        return firstRange;
-    };
-    this.findAll = function(session) {
-        var options = this.$options;
-        if (!options.needle)
-            return [];
-        this.$assembleRegExp(options);
-
-        var range = options.range;
-        var lines = range
-            ? session.getLines(range.start.row, range.end.row)
-            : session.doc.getAllLines();
-
-        var ranges = [];
-        var re = options.re;
-        if (options.$isMultiLine) {
-            var len = re.length;
-            var maxRow = lines.length - len;
-            var prevRange;
-            outer: for (var row = re.offset || 0; row <= maxRow; row++) {
-                for (var j = 0; j < len; j++)
-                    if (lines[row + j].search(re[j]) == -1)
-                        continue outer;
-
-                var startLine = lines[row];
-                var line = lines[row + len - 1];
-                var startIndex = startLine.length - startLine.match(re[0])[0].length;
-                var endIndex = line.match(re[len - 1])[0].length;
-
-                if (prevRange && prevRange.end.row === row &&
-                    prevRange.end.column > startIndex
-                ) {
-                    continue;
-                }
-                ranges.push(prevRange = new Range(
-                    row, startIndex, row + len - 1, endIndex
-                ));
-                if (len > 2)
-                    row = row + len - 2;
-            }
-        } else {
-            for (var i = 0; i < lines.length; i++) {
-                var matches = lang.getMatchOffsets(lines[i], re);
-                for (var j = 0; j < matches.length; j++) {
-                    var match = matches[j];
-                    ranges.push(new Range(i, match.offset, i, match.offset + match.length));
-                }
-            }
-        }
-
-        if (range) {
-            var startColumn = range.start.column;
-            var endColumn = range.start.column;
-            var i = 0, j = ranges.length - 1;
-            while (i < j && ranges[i].start.column < startColumn && ranges[i].start.row == range.start.row)
-                i++;
-
-            while (i < j && ranges[j].end.column > endColumn && ranges[j].end.row == range.end.row)
-                j--;
-
-            ranges = ranges.slice(i, j + 1);
-            for (i = 0, j = ranges.length; i < j; i++) {
-                ranges[i].start.row += range.start.row;
-                ranges[i].end.row += range.start.row;
-            }
-        }
-
-        return ranges;
-    };
-    this.replace = function(input, replacement) {
-        var options = this.$options;
-
-        var re = this.$assembleRegExp(options);
-        if (options.$isMultiLine)
-            return replacement;
-
-        if (!re)
-            return;
-
-        var match = re.exec(input);
-        if (!match || match[0].length != input.length)
-            return null;
-
-        replacement = input.replace(re, replacement);
-        if (options.preserveCase) {
-            replacement = replacement.split("");
-            for (var i = Math.min(input.length, input.length); i--; ) {
-                var ch = input[i];
-                if (ch && ch.toLowerCase() != ch)
-                    replacement[i] = replacement[i].toUpperCase();
-                else
-                    replacement[i] = replacement[i].toLowerCase();
-            }
-            replacement = replacement.join("");
-        }
-
-        return replacement;
-    };
-
-    this.$matchIterator = function(session, options) {
-        var re = this.$assembleRegExp(options);
-        if (!re)
-            return false;
-
-        var callback;
-        if (options.$isMultiLine) {
-            var len = re.length;
-            var matchIterator = function(line, row, offset) {
-                var startIndex = line.search(re[0]);
-                if (startIndex == -1)
-                    return;
-                for (var i = 1; i < len; i++) {
-                    line = session.getLine(row + i);
-                    if (line.search(re[i]) == -1)
-                        return;
-                }
-
-                var endIndex = line.match(re[len - 1])[0].length;
-
-                var range = new Range(row, startIndex, row + len - 1, endIndex);
-                if (re.offset == 1) {
-                    range.start.row--;
-                    range.start.column = Number.MAX_VALUE;
-                } else if (offset)
-                    range.start.column += offset;
-
-                if (callback(range))
-                    return true;
-            };
-        } else if (options.backwards) {
-            var matchIterator = function(line, row, startIndex) {
-                var matches = lang.getMatchOffsets(line, re);
-                for (var i = matches.length-1; i >= 0; i--)
-                    if (callback(matches[i], row, startIndex))
-                        return true;
-            };
-        } else {
-            var matchIterator = function(line, row, startIndex) {
-                var matches = lang.getMatchOffsets(line, re);
-                for (var i = 0; i < matches.length; i++)
-                    if (callback(matches[i], row, startIndex))
-                        return true;
-            };
-        }
-
-        var lineIterator = this.$lineIterator(session, options);
-
-        return {
-            forEach: function(_callback) {
-                callback = _callback;
-                lineIterator.forEach(matchIterator);
-            }
-        };
-    };
-
-    this.$assembleRegExp = function(options, $disableFakeMultiline) {
-        if (options.needle instanceof RegExp)
-            return options.re = options.needle;
-
-        var needle = options.needle;
-
-        if (!options.needle)
-            return options.re = false;
-
-        if (!options.regExp)
-            needle = lang.escapeRegExp(needle);
-
-        if (options.wholeWord)
-            needle = "\\b" + needle + "\\b";
-
-        var modifier = options.caseSensitive ? "gm" : "gmi";
-
-        options.$isMultiLine = !$disableFakeMultiline && /[\n\r]/.test(needle);
-        if (options.$isMultiLine)
-            return options.re = this.$assembleMultilineRegExp(needle, modifier);
-
-        try {
-            var re = new RegExp(needle, modifier);
-        } catch(e) {
-            re = false;
-        }
-        return options.re = re;
-    };
-
-    this.$assembleMultilineRegExp = function(needle, modifier) {
-        var parts = needle.replace(/\r\n|\r|\n/g, "$\n^").split("\n");
-        var re = [];
-        for (var i = 0; i < parts.length; i++) try {
-            re.push(new RegExp(parts[i], modifier));
-        } catch(e) {
-            return false;
-        }
-        if (parts[0] == "") {
-            re.shift();
-            re.offset = 1;
-        } else {
-            re.offset = 0;
-        }
-        return re;
-    };
-
-    this.$lineIterator = function(session, options) {
-        var backwards = options.backwards == true;
-        var skipCurrent = options.skipCurrent != false;
-
-        var range = options.range;
-        var start = options.start;
-        if (!start)
-            start = range ? range[backwards ? "end" : "start"] : session.selection.getRange();
-
-        if (start.start)
-            start = start[skipCurrent != backwards ? "end" : "start"];
-
-        var firstRow = range ? range.start.row : 0;
-        var lastRow = range ? range.end.row : session.getLength() - 1;
-
-        var forEach = backwards ? function(callback) {
-                var row = start.row;
-
-                var line = session.getLine(row).substring(0, start.column);
-                if (callback(line, row))
-                    return;
-
-                for (row--; row >= firstRow; row--)
-                    if (callback(session.getLine(row), row))
-                        return;
-
-                if (options.wrap == false)
-                    return;
-
-                for (row = lastRow, firstRow = start.row; row >= firstRow; row--)
-                    if (callback(session.getLine(row), row))
-                        return;
-            } : function(callback) {
-                var row = start.row;
-
-                var line = session.getLine(row).substr(start.column);
-                if (callback(line, row, start.column))
-                    return;
-
-                for (row = row+1; row <= lastRow; row++)
-                    if (callback(session.getLine(row), row))
-                        return;
-
-                if (options.wrap == false)
-                    return;
-
-                for (row = firstRow, lastRow = start.row; row <= lastRow; row++)
-                    if (callback(session.getLine(row), row))
-                        return;
-            };
-
-        return {forEach: forEach};
-    };
-
-}).call(Search.prototype);
-
-exports.Search = Search;
-});
-
-ace.define("ace/keyboard/hash_handler",["require","exports","module","ace/lib/keys","ace/lib/useragent"], function(require, exports, module) {
-"use strict";
-
-var keyUtil = require("../lib/keys");
-var useragent = require("../lib/useragent");
-var KEY_MODS = keyUtil.KEY_MODS;
-
-function HashHandler(config, platform) {
-    this.platform = platform || (useragent.isMac ? "mac" : "win");
-    this.commands = {};
-    this.commandKeyBinding = {};
-    this.addCommands(config);
-    this.$singleCommand = true;
-}
-
-function MultiHashHandler(config, platform) {
-    HashHandler.call(this, config, platform);
-    this.$singleCommand = false;
-}
-
-MultiHashHandler.prototype = HashHandler.prototype;
-
-(function() {
-
-
-    this.addCommand = function(command) {
-        if (this.commands[command.name])
-            this.removeCommand(command);
-
-        this.commands[command.name] = command;
-
-        if (command.bindKey)
-            this._buildKeyHash(command);
-    };
-
-    this.removeCommand = function(command, keepCommand) {
-        var name = command && (typeof command === 'string' ? command : command.name);
-        command = this.commands[name];
-        if (!keepCommand)
-            delete this.commands[name];
-        var ckb = this.commandKeyBinding;
-        for (var keyId in ckb) {
-            var cmdGroup = ckb[keyId];
-            if (cmdGroup == command) {
-                delete ckb[keyId];
-            } else if (Array.isArray(cmdGroup)) {
-                var i = cmdGroup.indexOf(command);
-                if (i != -1) {
-                    cmdGroup.splice(i, 1);
-                    if (cmdGroup.length == 1)
-                        ckb[keyId] = cmdGroup[0];
-                }
-            }
-        }
-    };
-
-    this.bindKey = function(key, command, position) {
-        if (typeof key == "object" && key) {
-            if (position == undefined)
-                position = key.position;
-            key = key[this.platform];
-        }
-        if (!key)
-            return;
-        if (typeof command == "function")
-            return this.addCommand({exec: command, bindKey: key, name: command.name || key});
-
-        key.split("|").forEach(function(keyPart) {
-            var chain = "";
-            if (keyPart.indexOf(" ") != -1) {
-                var parts = keyPart.split(/\s+/);
-                keyPart = parts.pop();
-                parts.forEach(function(keyPart) {
-                    var binding = this.parseKeys(keyPart);
-                    var id = KEY_MODS[binding.hashId] + binding.key;
-                    chain += (chain ? " " : "") + id;
-                    this._addCommandToBinding(chain, "chainKeys");
-                }, this);
-                chain += " ";
-            }
-            var binding = this.parseKeys(keyPart);
-            var id = KEY_MODS[binding.hashId] + binding.key;
-            this._addCommandToBinding(chain + id, command, position);
-        }, this);
-    };
-
-    function getPosition(command) {
-        return typeof command == "object" && command.bindKey
-            && command.bindKey.position || 0;
-    }
-    this._addCommandToBinding = function(keyId, command, position) {
-        var ckb = this.commandKeyBinding, i;
-        if (!command) {
-            delete ckb[keyId];
-        } else if (!ckb[keyId] || this.$singleCommand) {
-            ckb[keyId] = command;
-        } else {
-            if (!Array.isArray(ckb[keyId])) {
-                ckb[keyId] = [ckb[keyId]];
-            } else if ((i = ckb[keyId].indexOf(command)) != -1) {
-                ckb[keyId].splice(i, 1);
-            }
-
-            if (typeof position != "number") {
-                if (position || command.isDefault)
-                    position = -100;
-                else
-                   position = getPosition(command);
-            }
-            var commands = ckb[keyId];
-            for (i = 0; i < commands.length; i++) {
-                var other = commands[i];
-                var otherPos = getPosition(other);
-                if (otherPos > position)
-                    break;
-            }
-            commands.splice(i, 0, command);
-        }
-    };
-
-    this.addCommands = function(commands) {
-        commands && Object.keys(commands).forEach(function(name) {
-            var command = commands[name];
-            if (!command)
-                return;
-
-            if (typeof command === "string")
-                return this.bindKey(command, name);
-
-            if (typeof command === "function")
-                command = { exec: command };
-
-            if (typeof command !== "object")
-                return;
-
-            if (!command.name)
-                command.name = name;
-
-            this.addCommand(command);
-        }, this);
-    };
-
-    this.removeCommands = function(commands) {
-        Object.keys(commands).forEach(function(name) {
-            this.removeCommand(commands[name]);
-        }, this);
-    };
-
-    this.bindKeys = function(keyList) {
-        Object.keys(keyList).forEach(function(key) {
-            this.bindKey(key, keyList[key]);
-        }, this);
-    };
-
-    this._buildKeyHash = function(command) {
-        this.bindKey(command.bindKey, command);
-    };
-    this.parseKeys = function(keys) {
-        var parts = keys.toLowerCase().split(/[\-\+]([\-\+])?/).filter(function(x){return x});
-        var key = parts.pop();
-
-        var keyCode = keyUtil[key];
-        if (keyUtil.FUNCTION_KEYS[keyCode])
-            key = keyUtil.FUNCTION_KEYS[keyCode].toLowerCase();
-        else if (!parts.length)
-            return {key: key, hashId: -1};
-        else if (parts.length == 1 && parts[0] == "shift")
-            return {key: key.toUpperCase(), hashId: -1};
-
-        var hashId = 0;
-        for (var i = parts.length; i--;) {
-            var modifier = keyUtil.KEY_MODS[parts[i]];
-            if (modifier == null) {
-                if (typeof console != "undefined")
-                    console.error("invalid modifier " + parts[i] + " in " + keys);
-                return false;
-            }
-            hashId |= modifier;
-        }
-        return {key: key, hashId: hashId};
-    };
-
-    this.findKeyCommand = function findKeyCommand(hashId, keyString) {
-        var key = KEY_MODS[hashId] + keyString;
-        return this.commandKeyBinding[key];
-    };
-
-    this.handleKeyboard = function(data, hashId, keyString, keyCode) {
-        if (keyCode < 0) return;
-        var key = KEY_MODS[hashId] + keyString;
-        var command = this.commandKeyBinding[key];
-        if (data.$keyChain) {
-            data.$keyChain += " " + key;
-            command = this.commandKeyBinding[data.$keyChain] || command;
-        }
-
-        if (command) {
-            if (command == "chainKeys" || command[command.length - 1] == "chainKeys") {
-                data.$keyChain = data.$keyChain || key;
-                return {command: "null"};
-            }
-        }
-
-        if (data.$keyChain) {
-            if ((!hashId || hashId == 4) && keyString.length == 1)
-                data.$keyChain = data.$keyChain.slice(0, -key.length - 1); // wait for input
-            else if (hashId == -1 || keyCode > 0)
-                data.$keyChain = ""; // reset keyChain
-        }
-        return {command: command};
-    };
-
-    this.getStatusText = function(editor, data) {
-        return data.$keyChain || "";
-    };
-
-}).call(HashHandler.prototype);
-
-exports.HashHandler = HashHandler;
-exports.MultiHashHandler = MultiHashHandler;
-});
-
-ace.define("ace/commands/command_manager",["require","exports","module","ace/lib/oop","ace/keyboard/hash_handler","ace/lib/event_emitter"], function(require, exports, module) {
-"use strict";
-
-var oop = require("../lib/oop");
-var MultiHashHandler = require("../keyboard/hash_handler").MultiHashHandler;
-var EventEmitter = require("../lib/event_emitter").EventEmitter;
-
-var CommandManager = function(platform, commands) {
-    MultiHashHandler.call(this, commands, platform);
-    this.byName = this.commands;
-    this.setDefaultHandler("exec", function(e) {
-        return e.command.exec(e.editor, e.args || {});
-    });
-};
-
-oop.inherits(CommandManager, MultiHashHandler);
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-
-    this.exec = function(command, editor, args) {
-        if (Array.isArray(command)) {
-            for (var i = command.length; i--; ) {
-                if (this.exec(command[i], editor, args)) return true;
-            }
-            return false;
-        }
-
-        if (typeof command === "string")
-            command = this.commands[command];
-
-        if (!command)
-            return false;
-
-        if (editor && editor.$readOnly && !command.readOnly)
-            return false;
-
-        var e = {editor: editor, command: command, args: args};
-        e.returnValue = this._emit("exec", e);
-        this._signal("afterExec", e);
-
-        return e.returnValue === false ? false : true;
-    };
-
-    this.toggleRecording = function(editor) {
-        if (this.$inReplay)
-            return;
-
-        editor && editor._emit("changeStatus");
-        if (this.recording) {
-            this.macro.pop();
-            this.removeEventListener("exec", this.$addCommandToMacro);
-
-            if (!this.macro.length)
-                this.macro = this.oldMacro;
-
-            return this.recording = false;
-        }
-        if (!this.$addCommandToMacro) {
-            this.$addCommandToMacro = function(e) {
-                this.macro.push([e.command, e.args]);
-            }.bind(this);
-        }
-
-        this.oldMacro = this.macro;
-        this.macro = [];
-        this.on("exec", this.$addCommandToMacro);
-        return this.recording = true;
-    };
-
-    this.replay = function(editor) {
-        if (this.$inReplay || !this.macro)
-            return;
-
-        if (this.recording)
-            return this.toggleRecording(editor);
-
-        try {
-            this.$inReplay = true;
-            this.macro.forEach(function(x) {
-                if (typeof x == "string")
-                    this.exec(x, editor);
-                else
-                    this.exec(x[0], editor, x[1]);
-            }, this);
-        } finally {
-            this.$inReplay = false;
-        }
-    };
-
-    this.trimMacro = function(m) {
-        return m.map(function(x){
-            if (typeof x[0] != "string")
-                x[0] = x[0].name;
-            if (!x[1])
-                x = x[0];
-            return x;
-        });
-    };
-
-}).call(CommandManager.prototype);
-
-exports.CommandManager = CommandManager;
-
-});
-
-ace.define("ace/commands/default_commands",["require","exports","module","ace/lib/lang","ace/config","ace/range"], function(require, exports, module) {
-"use strict";
-
-var lang = require("../lib/lang");
-var config = require("../config");
-var Range = require("../range").Range;
-
-function bindKey(win, mac) {
-    return {win: win, mac: mac};
-}
-exports.commands = [{
-    name: "showSettingsMenu",
-    bindKey: bindKey("Ctrl-,", "Command-,"),
-    exec: function(editor) {
-        config.loadModule("ace/ext/settings_menu", function(module) {
-            module.init(editor);
-            editor.showSettingsMenu();
-        });
-    },
-    readOnly: true
-}, {
-    name: "goToNextError",
-    bindKey: bindKey("Alt-E", "Ctrl-E"),
-    exec: function(editor) {
-        config.loadModule("ace/ext/error_marker", function(module) {
-            module.showErrorMarker(editor, 1);
-        });
-    },
-    scrollIntoView: "animate",
-    readOnly: true
-}, {
-    name: "goToPreviousError",
-    bindKey: bindKey("Alt-Shift-E", "Ctrl-Shift-E"),
-    exec: function(editor) {
-        config.loadModule("ace/ext/error_marker", function(module) {
-            module.showErrorMarker(editor, -1);
-        });
-    },
-    scrollIntoView: "animate",
-    readOnly: true
-}, {
-    name: "selectall",
-    bindKey: bindKey("Ctrl-A", "Command-A"),
-    exec: function(editor) { editor.selectAll(); },
-    readOnly: true
-}, {
-    name: "centerselection",
-    bindKey: bindKey(null, "Ctrl-L"),
-    exec: function(editor) { editor.centerSelection(); },
-    readOnly: true
-}, {
-    name: "gotoline",
-    bindKey: bindKey("Ctrl-L", "Command-L"),
-    exec: function(editor) {
-        var line = parseInt(prompt("Enter line number:"), 10);
-        if (!isNaN(line)) {
-            editor.gotoLine(line);
-        }
-    },
-    readOnly: true
-}, {
-    name: "fold",
-    bindKey: bindKey("Alt-L|Ctrl-F1", "Command-Alt-L|Command-F1"),
-    exec: function(editor) { editor.session.toggleFold(false); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "unfold",
-    bindKey: bindKey("Alt-Shift-L|Ctrl-Shift-F1", "Command-Alt-Shift-L|Command-Shift-F1"),
-    exec: function(editor) { editor.session.toggleFold(true); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "toggleFoldWidget",
-    bindKey: bindKey("F2", "F2"),
-    exec: function(editor) { editor.session.toggleFoldWidget(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "toggleParentFoldWidget",
-    bindKey: bindKey("Alt-F2", "Alt-F2"),
-    exec: function(editor) { editor.session.toggleFoldWidget(true); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "foldall",
-    bindKey: bindKey(null, "Ctrl-Command-Option-0"),
-    exec: function(editor) { editor.session.foldAll(); },
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "foldOther",
-    bindKey: bindKey("Alt-0", "Command-Option-0"),
-    exec: function(editor) {
-        editor.session.foldAll();
-        editor.session.unfold(editor.selection.getAllRanges());
-    },
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "unfoldall",
-    bindKey: bindKey("Alt-Shift-0", "Command-Option-Shift-0"),
-    exec: function(editor) { editor.session.unfold(); },
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "findnext",
-    bindKey: bindKey("Ctrl-K", "Command-G"),
-    exec: function(editor) { editor.findNext(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "findprevious",
-    bindKey: bindKey("Ctrl-Shift-K", "Command-Shift-G"),
-    exec: function(editor) { editor.findPrevious(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "center",
-    readOnly: true
-}, {
-    name: "selectOrFindNext",
-    bindKey: bindKey("Alt-K", "Ctrl-G"),
-    exec: function(editor) {
-        if (editor.selection.isEmpty())
-            editor.selection.selectWord();
-        else
-            editor.findNext();
-    },
-    readOnly: true
-}, {
-    name: "selectOrFindPrevious",
-    bindKey: bindKey("Alt-Shift-K", "Ctrl-Shift-G"),
-    exec: function(editor) {
-        if (editor.selection.isEmpty())
-            editor.selection.selectWord();
-        else
-            editor.findPrevious();
-    },
-    readOnly: true
-}, {
-    name: "save",
-    bindKey: bindKey("Ctrl-S", "Command-S"),
-    exec: function(editor) {
-        if(typeof window.saveNonameInput=='function'){
-            window.saveNonameInput();
-        }
-    },
-    readOnly: true
-}, {
-    name: "overwrite",
-    bindKey: "Insert",
-    exec: function(editor) { editor.toggleOverwrite(); },
-    readOnly: true
-}, {
-    name: "selecttostart",
-    bindKey: bindKey("Ctrl-Shift-Home", "Command-Shift-Up"),
-    exec: function(editor) { editor.getSelection().selectFileStart(); },
-    multiSelectAction: "forEach",
-    readOnly: true,
-    scrollIntoView: "animate",
-    aceCommandGroup: "fileJump"
-}, {
-    name: "gotostart",
-    bindKey: bindKey("Ctrl-Home", "Command-Home|Command-Up"),
-    exec: function(editor) { editor.navigateFileStart(); },
-    multiSelectAction: "forEach",
-    readOnly: true,
-    scrollIntoView: "animate",
-    aceCommandGroup: "fileJump"
-}, {
-    name: "selectup",
-    bindKey: bindKey("Shift-Up", "Shift-Up"),
-    exec: function(editor) { editor.getSelection().selectUp(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "golineup",
-    bindKey: bindKey("Up", "Up|Ctrl-P"),
-    exec: function(editor, args) { editor.navigateUp(args.times); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selecttoend",
-    bindKey: bindKey("Ctrl-Shift-End", "Command-Shift-Down"),
-    exec: function(editor) { editor.getSelection().selectFileEnd(); },
-    multiSelectAction: "forEach",
-    readOnly: true,
-    scrollIntoView: "animate",
-    aceCommandGroup: "fileJump"
-}, {
-    name: "gotoend",
-    bindKey: bindKey("Ctrl-End", "Command-End|Command-Down"),
-    exec: function(editor) { editor.navigateFileEnd(); },
-    multiSelectAction: "forEach",
-    readOnly: true,
-    scrollIntoView: "animate",
-    aceCommandGroup: "fileJump"
-}, {
-    name: "selectdown",
-    bindKey: bindKey("Shift-Down", "Shift-Down"),
-    exec: function(editor) { editor.getSelection().selectDown(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "golinedown",
-    bindKey: bindKey("Down", "Down|Ctrl-N"),
-    exec: function(editor, args) { editor.navigateDown(args.times); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectwordleft",
-    bindKey: bindKey("Ctrl-Shift-Left", "Option-Shift-Left"),
-    exec: function(editor) { editor.getSelection().selectWordLeft(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "gotowordleft",
-    bindKey: bindKey("Ctrl-Left", "Option-Left"),
-    exec: function(editor) { editor.navigateWordLeft(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selecttolinestart",
-    bindKey: bindKey("Alt-Shift-Left", "Command-Shift-Left"),
-    exec: function(editor) { editor.getSelection().selectLineStart(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "gotolinestart",
-    bindKey: bindKey("Alt-Left|Home", "Command-Left|Home|Ctrl-A"),
-    exec: function(editor) { editor.navigateLineStart(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectleft",
-    bindKey: bindKey("Shift-Left", "Shift-Left"),
-    exec: function(editor) { editor.getSelection().selectLeft(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "gotoleft",
-    bindKey: bindKey("Left", "Left|Ctrl-B"),
-    exec: function(editor, args) { editor.navigateLeft(args.times); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectwordright",
-    bindKey: bindKey("Ctrl-Shift-Right", "Option-Shift-Right"),
-    exec: function(editor) { editor.getSelection().selectWordRight(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "gotowordright",
-    bindKey: bindKey("Ctrl-Right", "Option-Right"),
-    exec: function(editor) { editor.navigateWordRight(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selecttolineend",
-    bindKey: bindKey("Alt-Shift-Right", "Command-Shift-Right"),
-    exec: function(editor) { editor.getSelection().selectLineEnd(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "gotolineend",
-    bindKey: bindKey("Alt-Right|End", "Command-Right|End|Ctrl-E"),
-    exec: function(editor) { editor.navigateLineEnd(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectright",
-    bindKey: bindKey("Shift-Right", "Shift-Right"),
-    exec: function(editor) { editor.getSelection().selectRight(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "gotoright",
-    bindKey: bindKey("Right", "Right|Ctrl-F"),
-    exec: function(editor, args) { editor.navigateRight(args.times); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectpagedown",
-    bindKey: "Shift-PageDown",
-    exec: function(editor) { editor.selectPageDown(); },
-    readOnly: true
-}, {
-    name: "pagedown",
-    bindKey: bindKey(null, "Option-PageDown"),
-    exec: function(editor) { editor.scrollPageDown(); },
-    readOnly: true
-}, {
-    name: "gotopagedown",
-    bindKey: bindKey("PageDown", "PageDown|Ctrl-V"),
-    exec: function(editor) { editor.gotoPageDown(); },
-    readOnly: true
-}, {
-    name: "selectpageup",
-    bindKey: "Shift-PageUp",
-    exec: function(editor) { editor.selectPageUp(); },
-    readOnly: true
-}, {
-    name: "pageup",
-    bindKey: bindKey(null, "Option-PageUp"),
-    exec: function(editor) { editor.scrollPageUp(); },
-    readOnly: true
-}, {
-    name: "gotopageup",
-    bindKey: "PageUp",
-    exec: function(editor) { editor.gotoPageUp(); },
-    readOnly: true
-}, {
-    name: "scrollup",
-    bindKey: bindKey("Ctrl-Up", null),
-    exec: function(e) { e.renderer.scrollBy(0, -2 * e.renderer.layerConfig.lineHeight); },
-    readOnly: true
-}, {
-    name: "scrolldown",
-    bindKey: bindKey("Ctrl-Down", null),
-    exec: function(e) { e.renderer.scrollBy(0, 2 * e.renderer.layerConfig.lineHeight); },
-    readOnly: true
-}, {
-    name: "selectlinestart",
-    bindKey: "Shift-Home",
-    exec: function(editor) { editor.getSelection().selectLineStart(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectlineend",
-    bindKey: "Shift-End",
-    exec: function(editor) { editor.getSelection().selectLineEnd(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "togglerecording",
-    bindKey: bindKey("Ctrl-Alt-E", "Command-Option-E"),
-    exec: function(editor) { editor.commands.toggleRecording(editor); },
-    readOnly: true
-}, {
-    name: "replaymacro",
-    bindKey: bindKey("Ctrl-Shift-E", "Command-Shift-E"),
-    exec: function(editor) { editor.commands.replay(editor); },
-    readOnly: true
-}, {
-    name: "jumptomatching",
-    bindKey: bindKey("Ctrl-P", "Ctrl-P"),
-    exec: function(editor) { editor.jumpToMatching(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "animate",
-    readOnly: true
-}, {
-    name: "selecttomatching",
-    bindKey: bindKey("Ctrl-Shift-P", "Ctrl-Shift-P"),
-    exec: function(editor) { editor.jumpToMatching(true); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "animate",
-    readOnly: true
-}, {
-    name: "expandToMatching",
-    bindKey: bindKey("Ctrl-Shift-M", "Ctrl-Shift-M"),
-    exec: function(editor) { editor.jumpToMatching(true, true); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "animate",
-    readOnly: true
-}, {
-    name: "passKeysToBrowser",
-    bindKey: bindKey(null, null),
-    exec: function() {},
-    passEvent: true,
-    readOnly: true
-}, {
-    name: "copy",
-    exec: function(editor) {
-    },
-    readOnly: true
-},
-{
-    name: "cut",
-    exec: function(editor) {
-        var range = editor.getSelectionRange();
-        editor._emit("cut", range);
-
-        if (!editor.selection.isEmpty()) {
-            editor.session.remove(range);
-            editor.clearSelection();
-        }
-    },
-    scrollIntoView: "cursor",
-    multiSelectAction: "forEach"
-}, {
-    name: "paste",
-    exec: function(editor, args) {
-        editor.$handlePaste(args);
-    },
-    scrollIntoView: "cursor"
-}, {
-    name: "removeline",
-    bindKey: bindKey("Ctrl-D", "Command-D"),
-    exec: function(editor) { editor.removeLines(); },
-    scrollIntoView: "cursor",
-    multiSelectAction: "forEachLine"
-}, {
-    name: "duplicateSelection",
-    bindKey: bindKey("Ctrl-Shift-D", "Command-Shift-D"),
-    exec: function(editor) { editor.duplicateSelection(); },
-    scrollIntoView: "cursor",
-    multiSelectAction: "forEach"
-}, {
-    name: "sortlines",
-    bindKey: bindKey("Ctrl-Alt-S", "Command-Alt-S"),
-    exec: function(editor) { editor.sortLines(); },
-    scrollIntoView: "selection",
-    multiSelectAction: "forEachLine"
-}, {
-    name: "togglecomment",
-    bindKey: bindKey("Ctrl-/", "Command-/"),
-    exec: function(editor) { editor.toggleCommentLines(); },
-    multiSelectAction: "forEachLine",
-    scrollIntoView: "selectionPart"
-}, {
-    name: "toggleBlockComment",
-    bindKey: bindKey("Ctrl-Shift-/", "Command-Shift-/"),
-    exec: function(editor) { editor.toggleBlockComment(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "selectionPart"
-}, {
-    name: "modifyNumberUp",
-    bindKey: bindKey("Ctrl-Shift-Up", "Alt-Shift-Up"),
-    exec: function(editor) { editor.modifyNumber(1); },
-    scrollIntoView: "cursor",
-    multiSelectAction: "forEach"
-}, {
-    name: "modifyNumberDown",
-    bindKey: bindKey("Ctrl-Shift-Down", "Alt-Shift-Down"),
-    exec: function(editor) { editor.modifyNumber(-1); },
-    scrollIntoView: "cursor",
-    multiSelectAction: "forEach"
-}, {
-    name: "replace",
-    bindKey: bindKey("Ctrl-H", "Command-Option-F"),
-    exec: function(editor) {
-        config.loadModule("ace/ext/searchbox", function(e) {e.Search(editor, true)});
-    }
-}, {
-    name: "undo",
-    bindKey: bindKey("Ctrl-Z", "Command-Z"),
-    exec: function(editor) { editor.undo(); }
-}, {
-    name: "redo",
-    bindKey: bindKey("Ctrl-Shift-Z|Ctrl-Y", "Command-Shift-Z|Command-Y"),
-    exec: function(editor) { editor.redo(); }
-}, {
-    name: "copylinesup",
-    bindKey: bindKey("Alt-Shift-Up", "Command-Option-Up"),
-    exec: function(editor) { editor.copyLinesUp(); },
-    scrollIntoView: "cursor"
-}, {
-    name: "movelinesup",
-    bindKey: bindKey("Alt-Up", "Option-Up"),
-    exec: function(editor) { editor.moveLinesUp(); },
-    scrollIntoView: "cursor"
-}, {
-    name: "copylinesdown",
-    bindKey: bindKey("Alt-Shift-Down", "Command-Option-Down"),
-    exec: function(editor) { editor.copyLinesDown(); },
-    scrollIntoView: "cursor"
-}, {
-    name: "movelinesdown",
-    bindKey: bindKey("Alt-Down", "Option-Down"),
-    exec: function(editor) { editor.moveLinesDown(); },
-    scrollIntoView: "cursor"
-}, {
-    name: "del",
-    bindKey: bindKey("Delete", "Delete|Ctrl-D|Shift-Delete"),
-    exec: function(editor) { editor.remove("right"); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "backspace",
-    bindKey: bindKey(
-        "Shift-Backspace|Backspace",
-        "Ctrl-Backspace|Shift-Backspace|Backspace|Ctrl-H"
-    ),
-    exec: function(editor) { editor.remove("left"); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "cut_or_delete",
-    bindKey: bindKey("Shift-Delete", null),
-    exec: function(editor) {
-        if (editor.selection.isEmpty()) {
-            editor.remove("left");
-        } else {
-            return false;
-        }
-    },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "removetolinestart",
-    bindKey: bindKey("Alt-Backspace", "Command-Backspace"),
-    exec: function(editor) { editor.removeToLineStart(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "removetolineend",
-    bindKey: bindKey("Alt-Delete", "Ctrl-K"),
-    exec: function(editor) { editor.removeToLineEnd(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "removewordleft",
-    bindKey: bindKey("Ctrl-Backspace", "Alt-Backspace|Ctrl-Alt-Backspace"),
-    exec: function(editor) { editor.removeWordLeft(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "removewordright",
-    bindKey: bindKey("Ctrl-Delete", "Alt-Delete"),
-    exec: function(editor) { editor.removeWordRight(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "outdent",
-    bindKey: bindKey("Shift-Tab", "Shift-Tab"),
-    exec: function(editor) { editor.blockOutdent(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "selectionPart"
-}, {
-    name: "indent",
-    bindKey: bindKey("Tab", "Tab"),
-    exec: function(editor) { editor.indent(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "selectionPart"
-}, {
-    name: "blockoutdent",
-    bindKey: bindKey("Ctrl-[", "Ctrl-["),
-    exec: function(editor) { editor.blockOutdent(); },
-    multiSelectAction: "forEachLine",
-    scrollIntoView: "selectionPart"
-}, {
-    name: "blockindent",
-    bindKey: bindKey("Ctrl-]", "Ctrl-]"),
-    exec: function(editor) { editor.blockIndent(); },
-    multiSelectAction: "forEachLine",
-    scrollIntoView: "selectionPart"
-}, {
-    name: "insertstring",
-    exec: function(editor, str) { editor.insert(str); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "inserttext",
-    exec: function(editor, args) {
-        editor.insert(lang.stringRepeat(args.text  || "", args.times || 1));
-    },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "splitline",
-    bindKey: bindKey(null, "Ctrl-O"),
-    exec: function(editor) { editor.splitLine(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "transposeletters",
-    bindKey: bindKey("Ctrl-T", "Ctrl-T"),
-    exec: function(editor) { editor.transposeLetters(); },
-    multiSelectAction: function(editor) {editor.transposeSelections(1); },
-    scrollIntoView: "cursor"
-}, {
-    name: "touppercase",
-    bindKey: bindKey("Ctrl-U", "Ctrl-U"),
-    exec: function(editor) { editor.toUpperCase(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "tolowercase",
-    bindKey: bindKey("Ctrl-Shift-U", "Ctrl-Shift-U"),
-    exec: function(editor) { editor.toLowerCase(); },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor"
-}, {
-    name: "expandtoline",
-    bindKey: bindKey("Ctrl-Shift-L", "Command-Shift-L"),
-    exec: function(editor) {
-        var range = editor.selection.getRange();
-
-        range.start.column = range.end.column = 0;
-        range.end.row++;
-        editor.selection.setRange(range, false);
-    },
-    multiSelectAction: "forEach",
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "joinlines",
-    bindKey: bindKey(null, null),
-    exec: function(editor) {
-        var isBackwards = editor.selection.isBackwards();
-        var selectionStart = isBackwards ? editor.selection.getSelectionLead() : editor.selection.getSelectionAnchor();
-        var selectionEnd = isBackwards ? editor.selection.getSelectionAnchor() : editor.selection.getSelectionLead();
-        var firstLineEndCol = editor.session.doc.getLine(selectionStart.row).length;
-        var selectedText = editor.session.doc.getTextRange(editor.selection.getRange());
-        var selectedCount = selectedText.replace(/\n\s*/, " ").length;
-        var insertLine = editor.session.doc.getLine(selectionStart.row);
-
-        for (var i = selectionStart.row + 1; i <= selectionEnd.row + 1; i++) {
-            var curLine = lang.stringTrimLeft(lang.stringTrimRight(editor.session.doc.getLine(i)));
-            if (curLine.length !== 0) {
-                curLine = " " + curLine;
-            }
-            insertLine += curLine;
-        }
-
-        if (selectionEnd.row + 1 < (editor.session.doc.getLength() - 1)) {
-            insertLine += editor.session.doc.getNewLineCharacter();
-        }
-
-        editor.clearSelection();
-        editor.session.doc.replace(new Range(selectionStart.row, 0, selectionEnd.row + 2, 0), insertLine);
-
-        if (selectedCount > 0) {
-            editor.selection.moveCursorTo(selectionStart.row, selectionStart.column);
-            editor.selection.selectTo(selectionStart.row, selectionStart.column + selectedCount);
-        } else {
-            firstLineEndCol = editor.session.doc.getLine(selectionStart.row).length > firstLineEndCol ? (firstLineEndCol + 1) : firstLineEndCol;
-            editor.selection.moveCursorTo(selectionStart.row, firstLineEndCol);
-        }
-    },
-    multiSelectAction: "forEach",
-    readOnly: true
-}, {
-    name: "invertSelection",
-    bindKey: bindKey(null, null),
-    exec: function(editor) {
-        var endRow = editor.session.doc.getLength() - 1;
-        var endCol = editor.session.doc.getLine(endRow).length;
-        var ranges = editor.selection.rangeList.ranges;
-        var newRanges = [];
-        if (ranges.length < 1) {
-            ranges = [editor.selection.getRange()];
-        }
-
-        for (var i = 0; i < ranges.length; i++) {
-            if (i == (ranges.length - 1)) {
-                if (!(ranges[i].end.row === endRow && ranges[i].end.column === endCol)) {
-                    newRanges.push(new Range(ranges[i].end.row, ranges[i].end.column, endRow, endCol));
-                }
-            }
-
-            if (i === 0) {
-                if (!(ranges[i].start.row === 0 && ranges[i].start.column === 0)) {
-                    newRanges.push(new Range(0, 0, ranges[i].start.row, ranges[i].start.column));
-                }
-            } else {
-                newRanges.push(new Range(ranges[i-1].end.row, ranges[i-1].end.column, ranges[i].start.row, ranges[i].start.column));
-            }
-        }
-
-        editor.exitMultiSelectMode();
-        editor.clearSelection();
-
-        for(var i = 0; i < newRanges.length; i++) {
-            editor.selection.addRange(newRanges[i], false);
-        }
-    },
-    readOnly: true,
-    scrollIntoView: "none"
-}];
-
-});
-
-ace.define("ace/editor",["require","exports","module","ace/lib/fixoldbrowsers","ace/lib/oop","ace/lib/dom","ace/lib/lang","ace/lib/useragent","ace/keyboard/textinput","ace/mouse/mouse_handler","ace/mouse/fold_handler","ace/keyboard/keybinding","ace/edit_session","ace/search","ace/range","ace/lib/event_emitter","ace/commands/command_manager","ace/commands/default_commands","ace/config","ace/token_iterator"], function(require, exports, module) {
-"use strict";
-
-require("./lib/fixoldbrowsers");
-
-var oop = require("./lib/oop");
-var dom = require("./lib/dom");
-var lang = require("./lib/lang");
-var useragent = require("./lib/useragent");
-var TextInput = require("./keyboard/textinput").TextInput;
-var MouseHandler = require("./mouse/mouse_handler").MouseHandler;
-var FoldHandler = require("./mouse/fold_handler").FoldHandler;
-var KeyBinding = require("./keyboard/keybinding").KeyBinding;
-var EditSession = require("./edit_session").EditSession;
-var Search = require("./search").Search;
-var Range = require("./range").Range;
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-var CommandManager = require("./commands/command_manager").CommandManager;
-var defaultCommands = require("./commands/default_commands").commands;
-var config = require("./config");
-var TokenIterator = require("./token_iterator").TokenIterator;
-var Editor = function(renderer, session) {
-    var container = renderer.getContainerElement();
-    this.container = container;
-    this.renderer = renderer;
-
-    this.commands = new CommandManager(useragent.isMac ? "mac" : "win", defaultCommands);
-    this.textInput  = new TextInput(renderer.getTextAreaContainer(), this);
-    this.renderer.textarea = this.textInput.getElement();
-    this.keyBinding = new KeyBinding(this);
-    this.$mouseHandler = new MouseHandler(this);
-    new FoldHandler(this);
-
-    this.$blockScrolling = 0;
-    this.$search = new Search().set({
-        wrap: true
-    });
-
-    this.$historyTracker = this.$historyTracker.bind(this);
-    this.commands.on("exec", this.$historyTracker);
-
-    this.$initOperationListeners();
-
-    this._$emitInputEvent = lang.delayedCall(function() {
-        this._signal("input", {});
-        if (this.session && this.session.bgTokenizer)
-            this.session.bgTokenizer.scheduleStart();
-    }.bind(this));
-
-    this.on("change", function(_, _self) {
-        _self._$emitInputEvent.schedule(31);
-    });
-
-    this.setSession(session || new EditSession(""));
-    config.resetOptions(this);
-    config._signal("editor", this);
-};
-
-(function(){
-
-    oop.implement(this, EventEmitter);
-
-    this.$initOperationListeners = function() {
-        function last(a) {return a[a.length - 1]}
-
-        this.selections = [];
-        this.commands.on("exec", this.startOperation.bind(this), true);
-        this.commands.on("afterExec", this.endOperation.bind(this), true);
-
-        this.$opResetTimer = lang.delayedCall(this.endOperation.bind(this));
-
-        this.on("change", function() {
-            this.curOp || this.startOperation();
-            this.curOp.docChanged = true;
-        }.bind(this), true);
-
-        this.on("changeSelection", function() {
-            this.curOp || this.startOperation();
-            this.curOp.selectionChanged = true;
-        }.bind(this), true);
-    };
-
-    this.curOp = null;
-    this.prevOp = {};
-    this.startOperation = function(commadEvent) {
-        if (this.curOp) {
-            if (!commadEvent || this.curOp.command)
-                return;
-            this.prevOp = this.curOp;
-        }
-        if (!commadEvent) {
-            this.previousCommand = null;
-            commadEvent = {};
-        }
-
-        this.$opResetTimer.schedule();
-        this.curOp = {
-            command: commadEvent.command || {},
-            args: commadEvent.args,
-            scrollTop: this.renderer.scrollTop
-        };
-        if (this.curOp.command.name && this.curOp.command.scrollIntoView !== undefined)
-            this.$blockScrolling++;
-    };
-
-    this.endOperation = function(e) {
-        if (this.curOp) {
-            if (e && e.returnValue === false)
-                return this.curOp = null;
-            this._signal("beforeEndOperation");
-            var command = this.curOp.command;
-            if (command.name && this.$blockScrolling > 0)
-                this.$blockScrolling--;
-            var scrollIntoView = command && command.scrollIntoView;
-            if (scrollIntoView) {
-                switch (scrollIntoView) {
-                    case "center-animate":
-                        scrollIntoView = "animate";
-                    case "center":
-                        this.renderer.scrollCursorIntoView(null, 0.5);
-                        break;
-                    case "animate":
-                    case "cursor":
-                        this.renderer.scrollCursorIntoView();
-                        break;
-                    case "selectionPart":
-                        var range = this.selection.getRange();
-                        var config = this.renderer.layerConfig;
-                        if (range.start.row >= config.lastRow || range.end.row <= config.firstRow) {
-                            this.renderer.scrollSelectionIntoView(this.selection.anchor, this.selection.lead);
-                        }
-                        break;
-                    default:
-                        break;
-                }
-                if (scrollIntoView == "animate")
-                    this.renderer.animateScrolling(this.curOp.scrollTop);
-            }
-
-            this.prevOp = this.curOp;
-            this.curOp = null;
-        }
-    };
-    this.$mergeableCommands = ["backspace", "del", "insertstring"];
-    this.$historyTracker = function(e) {
-        if (!this.$mergeUndoDeltas)
-            return;
-
-        var prev = this.prevOp;
-        var mergeableCommands = this.$mergeableCommands;
-        var shouldMerge = prev.command && (e.command.name == prev.command.name);
-        if (e.command.name == "insertstring") {
-            var text = e.args;
-            if (this.mergeNextCommand === undefined)
-                this.mergeNextCommand = true;
-
-            shouldMerge = shouldMerge
-                && this.mergeNextCommand // previous command allows to coalesce with
-                && (!/\s/.test(text) || /\s/.test(prev.args)); // previous insertion was of same type
-
-            this.mergeNextCommand = true;
-        } else {
-            shouldMerge = shouldMerge
-                && mergeableCommands.indexOf(e.command.name) !== -1; // the command is mergeable
-        }
-
-        if (
-            this.$mergeUndoDeltas != "always"
-            && Date.now() - this.sequenceStartTime > 2000
-        ) {
-            shouldMerge = false; // the sequence is too long
-        }
-
-        if (shouldMerge)
-            this.session.mergeUndoDeltas = true;
-        else if (mergeableCommands.indexOf(e.command.name) !== -1)
-            this.sequenceStartTime = Date.now();
-    };
-    this.setKeyboardHandler = function(keyboardHandler, cb) {
-        if (keyboardHandler && typeof keyboardHandler === "string") {
-            this.$keybindingId = keyboardHandler;
-            var _self = this;
-            config.loadModule(["keybinding", keyboardHandler], function(module) {
-                if (_self.$keybindingId == keyboardHandler)
-                    _self.keyBinding.setKeyboardHandler(module && module.handler);
-                cb && cb();
-            });
-        } else {
-            this.$keybindingId = null;
-            this.keyBinding.setKeyboardHandler(keyboardHandler);
-            cb && cb();
-        }
-    };
-    this.getKeyboardHandler = function() {
-        return this.keyBinding.getKeyboardHandler();
-    };
-    this.setSession = function(session) {
-        if (this.session == session)
-            return;
-        if (this.curOp) this.endOperation();
-        this.curOp = {};
-
-        var oldSession = this.session;
-        if (oldSession) {
-            this.session.off("change", this.$onDocumentChange);
-            this.session.off("changeMode", this.$onChangeMode);
-            this.session.off("tokenizerUpdate", this.$onTokenizerUpdate);
-            this.session.off("changeTabSize", this.$onChangeTabSize);
-            this.session.off("changeWrapLimit", this.$onChangeWrapLimit);
-            this.session.off("changeWrapMode", this.$onChangeWrapMode);
-            this.session.off("changeFold", this.$onChangeFold);
-            this.session.off("changeFrontMarker", this.$onChangeFrontMarker);
-            this.session.off("changeBackMarker", this.$onChangeBackMarker);
-            this.session.off("changeBreakpoint", this.$onChangeBreakpoint);
-            this.session.off("changeAnnotation", this.$onChangeAnnotation);
-            this.session.off("changeOverwrite", this.$onCursorChange);
-            this.session.off("changeScrollTop", this.$onScrollTopChange);
-            this.session.off("changeScrollLeft", this.$onScrollLeftChange);
-
-            var selection = this.session.getSelection();
-            selection.off("changeCursor", this.$onCursorChange);
-            selection.off("changeSelection", this.$onSelectionChange);
-        }
-
-        this.session = session;
-        if (session) {
-            this.$onDocumentChange = this.onDocumentChange.bind(this);
-            session.on("change", this.$onDocumentChange);
-            this.renderer.setSession(session);
-
-            this.$onChangeMode = this.onChangeMode.bind(this);
-            session.on("changeMode", this.$onChangeMode);
-
-            this.$onTokenizerUpdate = this.onTokenizerUpdate.bind(this);
-            session.on("tokenizerUpdate", this.$onTokenizerUpdate);
-
-            this.$onChangeTabSize = this.renderer.onChangeTabSize.bind(this.renderer);
-            session.on("changeTabSize", this.$onChangeTabSize);
-
-            this.$onChangeWrapLimit = this.onChangeWrapLimit.bind(this);
-            session.on("changeWrapLimit", this.$onChangeWrapLimit);
-
-            this.$onChangeWrapMode = this.onChangeWrapMode.bind(this);
-            session.on("changeWrapMode", this.$onChangeWrapMode);
-
-            this.$onChangeFold = this.onChangeFold.bind(this);
-            session.on("changeFold", this.$onChangeFold);
-
-            this.$onChangeFrontMarker = this.onChangeFrontMarker.bind(this);
-            this.session.on("changeFrontMarker", this.$onChangeFrontMarker);
-
-            this.$onChangeBackMarker = this.onChangeBackMarker.bind(this);
-            this.session.on("changeBackMarker", this.$onChangeBackMarker);
-
-            this.$onChangeBreakpoint = this.onChangeBreakpoint.bind(this);
-            this.session.on("changeBreakpoint", this.$onChangeBreakpoint);
-
-            this.$onChangeAnnotation = this.onChangeAnnotation.bind(this);
-            this.session.on("changeAnnotation", this.$onChangeAnnotation);
-
-            this.$onCursorChange = this.onCursorChange.bind(this);
-            this.session.on("changeOverwrite", this.$onCursorChange);
-
-            this.$onScrollTopChange = this.onScrollTopChange.bind(this);
-            this.session.on("changeScrollTop", this.$onScrollTopChange);
-
-            this.$onScrollLeftChange = this.onScrollLeftChange.bind(this);
-            this.session.on("changeScrollLeft", this.$onScrollLeftChange);
-
-            this.selection = session.getSelection();
-            this.selection.on("changeCursor", this.$onCursorChange);
-
-            this.$onSelectionChange = this.onSelectionChange.bind(this);
-            this.selection.on("changeSelection", this.$onSelectionChange);
-
-            this.onChangeMode();
-
-            this.$blockScrolling += 1;
-            this.onCursorChange();
-            this.$blockScrolling -= 1;
-
-            this.onScrollTopChange();
-            this.onScrollLeftChange();
-            this.onSelectionChange();
-            this.onChangeFrontMarker();
-            this.onChangeBackMarker();
-            this.onChangeBreakpoint();
-            this.onChangeAnnotation();
-            this.session.getUseWrapMode() && this.renderer.adjustWrapLimit();
-            this.renderer.updateFull();
-        } else {
-            this.selection = null;
-            this.renderer.setSession(session);
-        }
-
-        this._signal("changeSession", {
-            session: session,
-            oldSession: oldSession
-        });
-
-        this.curOp = null;
-
-        oldSession && oldSession._signal("changeEditor", {oldEditor: this});
-        session && session._signal("changeEditor", {editor: this});
-    };
-    this.getSession = function() {
-        return this.session;
-    };
-    this.setValue = function(val, cursorPos) {
-        this.session.doc.setValue(val);
-
-        if (!cursorPos)
-            this.selectAll();
-        else if (cursorPos == 1)
-            this.navigateFileEnd();
-        else if (cursorPos == -1)
-            this.navigateFileStart();
-
-        return val;
-    };
-    this.getValue = function() {
-        return this.session.getValue();
-    };
-    this.getSelection = function() {
-        return this.selection;
-    };
-    this.resize = function(force) {
-        this.renderer.onResize(force);
-    };
-    this.setTheme = function(theme, cb) {
-        this.renderer.setTheme(theme, cb);
-    };
-    this.getTheme = function() {
-        return this.renderer.getTheme();
-    };
-    this.setStyle = function(style) {
-        this.renderer.setStyle(style);
-    };
-    this.unsetStyle = function(style) {
-        this.renderer.unsetStyle(style);
-    };
-    this.getFontSize = function () {
-        return this.getOption("fontSize") ||
-           dom.computedStyle(this.container, "fontSize");
-    };
-    this.setFontSize = function(size) {
-        this.setOption("fontSize", size);
-    };
-
-    this.$highlightBrackets = function() {
-        if (this.session.$bracketHighlight) {
-            this.session.removeMarker(this.session.$bracketHighlight);
-            this.session.$bracketHighlight = null;
-        }
-
-        if (this.$highlightPending) {
-            return;
-        }
-        var self = this;
-        this.$highlightPending = true;
-        setTimeout(function() {
-            self.$highlightPending = false;
-            var session = self.session;
-            if (!session || !session.bgTokenizer) return;
-            var pos = session.findMatchingBracket(self.getCursorPosition());
-            if (pos) {
-                var range = new Range(pos.row, pos.column, pos.row, pos.column + 1);
-            } else if (session.$mode.getMatching) {
-                var range = session.$mode.getMatching(self.session);
-            }
-            if (range)
-                session.$bracketHighlight = session.addMarker(range, "ace_bracket", "text");
-        }, 50);
-    };
-    this.$highlightTags = function() {
-        if (this.$highlightTagPending)
-            return;
-        var self = this;
-        this.$highlightTagPending = true;
-        setTimeout(function() {
-            self.$highlightTagPending = false;
-
-            var session = self.session;
-            if (!session || !session.bgTokenizer) return;
-
-            var pos = self.getCursorPosition();
-            var iterator = new TokenIterator(self.session, pos.row, pos.column);
-            var token = iterator.getCurrentToken();
-
-            if (!token || !/\b(?:tag-open|tag-name)/.test(token.type)) {
-                session.removeMarker(session.$tagHighlight);
-                session.$tagHighlight = null;
-                return;
-            }
-
-            if (token.type.indexOf("tag-open") != -1) {
-                token = iterator.stepForward();
-                if (!token)
-                    return;
-            }
-
-            var tag = token.value;
-            var depth = 0;
-            var prevToken = iterator.stepBackward();
-
-            if (prevToken.value == '<'){
-                do {
-                    prevToken = token;
-                    token = iterator.stepForward();
-
-                    if (token && token.value === tag && token.type.indexOf('tag-name') !== -1) {
-                        if (prevToken.value === '<'){
-                            depth++;
-                        } else if (prevToken.value === '</'){
-                            depth--;
-                        }
-                    }
-
-                } while (token && depth >= 0);
-            } else {
-                do {
-                    token = prevToken;
-                    prevToken = iterator.stepBackward();
-
-                    if (token && token.value === tag && token.type.indexOf('tag-name') !== -1) {
-                        if (prevToken.value === '<') {
-                            depth++;
-                        } else if (prevToken.value === '</') {
-                            depth--;
-                        }
-                    }
-                } while (prevToken && depth <= 0);
-                iterator.stepForward();
-            }
-
-            if (!token) {
-                session.removeMarker(session.$tagHighlight);
-                session.$tagHighlight = null;
-                return;
-            }
-
-            var row = iterator.getCurrentTokenRow();
-            var column = iterator.getCurrentTokenColumn();
-            var range = new Range(row, column, row, column+token.value.length);
-            if (session.$tagHighlight && range.compareRange(session.$backMarkers[session.$tagHighlight].range)!==0) {
-                session.removeMarker(session.$tagHighlight);
-                session.$tagHighlight = null;
-            }
-
-            if (range && !session.$tagHighlight)
-                session.$tagHighlight = session.addMarker(range, "ace_bracket", "text");
-        }, 50);
-    };
-    this.focus = function() {
-        var _self = this;
-        setTimeout(function() {
-            _self.textInput.focus();
-        });
-        this.textInput.focus();
-    };
-    this.isFocused = function() {
-        return this.textInput.isFocused();
-    };
-    this.blur = function() {
-        this.textInput.blur();
-    };
-    this.onFocus = function(e) {
-        if (this.$isFocused)
-            return;
-        this.$isFocused = true;
-        this.renderer.showCursor();
-        this.renderer.visualizeFocus();
-        this._emit("focus", e);
-    };
-    this.onBlur = function(e) {
-        if (!this.$isFocused)
-            return;
-        this.$isFocused = false;
-        this.renderer.hideCursor();
-        this.renderer.visualizeBlur();
-        this._emit("blur", e);
-    };
-
-    this.$cursorChange = function() {
-        this.renderer.updateCursor();
-    };
-    this.onDocumentChange = function(delta) {
-        var wrap = this.session.$useWrapMode;
-        var lastRow = (delta.start.row == delta.end.row ? delta.end.row : Infinity);
-        this.renderer.updateLines(delta.start.row, lastRow, wrap);
-
-        this._signal("change", delta);
-        this.$cursorChange();
-        this.$updateHighlightActiveLine();
-    };
-
-    this.onTokenizerUpdate = function(e) {
-        var rows = e.data;
-        this.renderer.updateLines(rows.first, rows.last);
-    };
-
-
-    this.onScrollTopChange = function() {
-        this.renderer.scrollToY(this.session.getScrollTop());
-    };
-
-    this.onScrollLeftChange = function() {
-        this.renderer.scrollToX(this.session.getScrollLeft());
-    };
-    this.onCursorChange = function() {
-        this.$cursorChange();
-
-        if (!this.$blockScrolling) {
-            config.warn("Automatically scrolling cursor into view after selection change",
-                "this will be disabled in the next version",
-                "set editor.$blockScrolling = Infinity to disable this message"
-            );
-            this.renderer.scrollCursorIntoView();
-        }
-
-        this.$highlightBrackets();
-        this.$highlightTags();
-        this.$updateHighlightActiveLine();
-        this._signal("changeSelection");
-    };
-
-    this.$updateHighlightActiveLine = function() {
-        var session = this.getSession();
-
-        var highlight;
-        if (this.$highlightActiveLine) {
-            if ((this.$selectionStyle != "line" || !this.selection.isMultiLine()))
-                highlight = this.getCursorPosition();
-            if (this.renderer.$maxLines && this.session.getLength() === 1 && !(this.renderer.$minLines > 1))
-                highlight = false;
-        }
-
-        if (session.$highlightLineMarker && !highlight) {
-            session.removeMarker(session.$highlightLineMarker.id);
-            session.$highlightLineMarker = null;
-        } else if (!session.$highlightLineMarker && highlight) {
-            var range = new Range(highlight.row, highlight.column, highlight.row, Infinity);
-            range.id = session.addMarker(range, "ace_active-line", "screenLine");
-            session.$highlightLineMarker = range;
-        } else if (highlight) {
-            session.$highlightLineMarker.start.row = highlight.row;
-            session.$highlightLineMarker.end.row = highlight.row;
-            session.$highlightLineMarker.start.column = highlight.column;
-            session._signal("changeBackMarker");
-        }
-    };
-
-    this.onSelectionChange = function(e) {
-        var session = this.session;
-
-        if (session.$selectionMarker) {
-            session.removeMarker(session.$selectionMarker);
-        }
-        session.$selectionMarker = null;
-
-        if (!this.selection.isEmpty()) {
-            var range = this.selection.getRange();
-            var style = this.getSelectionStyle();
-            session.$selectionMarker = session.addMarker(range, "ace_selection", style);
-        } else {
-            this.$updateHighlightActiveLine();
-        }
-
-        var re = this.$highlightSelectedWord && this.$getSelectionHighLightRegexp();
-        this.session.highlight(re);
-
-        this._signal("changeSelection");
-    };
-
-    this.$getSelectionHighLightRegexp = function() {
-        var session = this.session;
-
-        var selection = this.getSelectionRange();
-        if (selection.isEmpty() || selection.isMultiLine())
-            return;
-
-        var startOuter = selection.start.column - 1;
-        var endOuter = selection.end.column + 1;
-        var line = session.getLine(selection.start.row);
-        var lineCols = line.length;
-        var needle = line.substring(Math.max(startOuter, 0),
-                                    Math.min(endOuter, lineCols));
-        if ((startOuter >= 0 && /^[\w\d]/.test(needle)) ||
-            (endOuter <= lineCols && /[\w\d]$/.test(needle)))
-            return;
-
-        needle = line.substring(selection.start.column, selection.end.column);
-        if (!/^[\w\d]+$/.test(needle))
-            return;
-
-        var re = this.$search.$assembleRegExp({
-            wholeWord: true,
-            caseSensitive: true,
-            needle: needle
-        });
-
-        return re;
-    };
-
-
-    this.onChangeFrontMarker = function() {
-        this.renderer.updateFrontMarkers();
-    };
-
-    this.onChangeBackMarker = function() {
-        this.renderer.updateBackMarkers();
-    };
-
-
-    this.onChangeBreakpoint = function() {
-        this.renderer.updateBreakpoints();
-    };
-
-    this.onChangeAnnotation = function() {
-        this.renderer.setAnnotations(this.session.getAnnotations());
-    };
-
-
-    this.onChangeMode = function(e) {
-        this.renderer.updateText();
-        this._emit("changeMode", e);
-    };
-
-
-    this.onChangeWrapLimit = function() {
-        this.renderer.updateFull();
-    };
-
-    this.onChangeWrapMode = function() {
-        this.renderer.onResize(true);
-    };
-
-
-    this.onChangeFold = function() {
-        this.$updateHighlightActiveLine();
-        this.renderer.updateFull();
-    };
-    this.getSelectedText = function() {
-        return this.session.getTextRange(this.getSelectionRange());
-    };
-    this.getCopyText = function() {
-        var text = this.getSelectedText();
-        this._signal("copy", text);
-        return text;
-    };
-    this.onCopy = function() {
-        this.commands.exec("copy", this);
-    };
-    this.onCut = function() {
-        this.commands.exec("cut", this);
-    };
-    this.onPaste = function(text, event) {
-        var e = {text: text, event: event};
-        this.commands.exec("paste", this, e);
-    };
-
-    this.$handlePaste = function(e) {
-        if (typeof e == "string")
-            e = {text: e};
-        this._signal("paste", e);
-        var text = e.text;
-        if (!this.inMultiSelectMode || this.inVirtualSelectionMode) {
-            this.insert(text);
-        } else {
-            var lines = text.split(/\r\n|\r|\n/);
-            var ranges = this.selection.rangeList.ranges;
-
-            if (lines.length > ranges.length || lines.length < 2 || !lines[1])
-                return this.commands.exec("insertstring", this, text);
-
-            for (var i = ranges.length; i--;) {
-                var range = ranges[i];
-                if (!range.isEmpty())
-                    this.session.remove(range);
-
-                this.session.insert(range.start, lines[i]);
-            }
-        }
-    };
-
-    this.execCommand = function(command, args) {
-        return this.commands.exec(command, this, args);
-    };
-    this.insert = function(text, pasted) {
-        var session = this.session;
-        var mode = session.getMode();
-        var cursor = this.getCursorPosition();
-
-        if (this.getBehavioursEnabled() && !pasted) {
-            var transform = mode.transformAction(session.getState(cursor.row), 'insertion', this, session, text);
-            if (transform) {
-                if (text !== transform.text) {
-                    this.session.mergeUndoDeltas = false;
-                    this.$mergeNextCommand = false;
-                }
-                text = transform.text;
-
-            }
-        }
-
-        if (text == "\t")
-            text = this.session.getTabString();
-        if (!this.selection.isEmpty()) {
-            var range = this.getSelectionRange();
-            cursor = this.session.remove(range);
-            this.clearSelection();
-        }
-        else if (this.session.getOverwrite()) {
-            var range = new Range.fromPoints(cursor, cursor);
-            range.end.column += text.length;
-            this.session.remove(range);
-        }
-
-        if (text == "\n" || text == "\r\n") {
-            var line = session.getLine(cursor.row);
-            if (cursor.column > line.search(/\S|$/)) {
-                var d = line.substr(cursor.column).search(/\S|$/);
-                session.doc.removeInLine(cursor.row, cursor.column, cursor.column + d);
-            }
-        }
-        this.clearSelection();
-
-        var start = cursor.column;
-        var lineState = session.getState(cursor.row);
-        var line = session.getLine(cursor.row);
-        var shouldOutdent = mode.checkOutdent(lineState, line, text);
-        var end = session.insert(cursor, text);
-
-        if (transform && transform.selection) {
-            if (transform.selection.length == 2) { // Transform relative to the current column
-                this.selection.setSelectionRange(
-                    new Range(cursor.row, start + transform.selection[0],
-                              cursor.row, start + transform.selection[1]));
-            } else { // Transform relative to the current row.
-                this.selection.setSelectionRange(
-                    new Range(cursor.row + transform.selection[0],
-                              transform.selection[1],
-                              cursor.row + transform.selection[2],
-                              transform.selection[3]));
-            }
-        }
-
-        if (session.getDocument().isNewLine(text)) {
-            var lineIndent = mode.getNextLineIndent(lineState, line.slice(0, cursor.column), session.getTabString());
-
-            session.insert({row: cursor.row+1, column: 0}, lineIndent);
-        }
-        if (shouldOutdent)
-            mode.autoOutdent(lineState, session, cursor.row);
-    };
-
-    this.onTextInput = function(text) {
-        this.keyBinding.onTextInput(text);
-    };
-
-    this.onCommandKey = function(e, hashId, keyCode) {
-        this.keyBinding.onCommandKey(e, hashId, keyCode);
-    };
-    this.setOverwrite = function(overwrite) {
-        this.session.setOverwrite(overwrite);
-    };
-    this.getOverwrite = function() {
-        return this.session.getOverwrite();
-    };
-    this.toggleOverwrite = function() {
-        this.session.toggleOverwrite();
-    };
-    this.setScrollSpeed = function(speed) {
-        this.setOption("scrollSpeed", speed);
-    };
-    this.getScrollSpeed = function() {
-        return this.getOption("scrollSpeed");
-    };
-    this.setDragDelay = function(dragDelay) {
-        this.setOption("dragDelay", dragDelay);
-    };
-    this.getDragDelay = function() {
-        return this.getOption("dragDelay");
-    };
-    this.setSelectionStyle = function(val) {
-        this.setOption("selectionStyle", val);
-    };
-    this.getSelectionStyle = function() {
-        return this.getOption("selectionStyle");
-    };
-    this.setHighlightActiveLine = function(shouldHighlight) {
-        this.setOption("highlightActiveLine", shouldHighlight);
-    };
-    this.getHighlightActiveLine = function() {
-        return this.getOption("highlightActiveLine");
-    };
-    this.setHighlightGutterLine = function(shouldHighlight) {
-        this.setOption("highlightGutterLine", shouldHighlight);
-    };
-
-    this.getHighlightGutterLine = function() {
-        return this.getOption("highlightGutterLine");
-    };
-    this.setHighlightSelectedWord = function(shouldHighlight) {
-        this.setOption("highlightSelectedWord", shouldHighlight);
-    };
-    this.getHighlightSelectedWord = function() {
-        return this.$highlightSelectedWord;
-    };
-
-    this.setAnimatedScroll = function(shouldAnimate){
-        this.renderer.setAnimatedScroll(shouldAnimate);
-    };
-
-    this.getAnimatedScroll = function(){
-        return this.renderer.getAnimatedScroll();
-    };
-    this.setShowInvisibles = function(showInvisibles) {
-        this.renderer.setShowInvisibles(showInvisibles);
-    };
-    this.getShowInvisibles = function() {
-        return this.renderer.getShowInvisibles();
-    };
-
-    this.setDisplayIndentGuides = function(display) {
-        this.renderer.setDisplayIndentGuides(display);
-    };
-
-    this.getDisplayIndentGuides = function() {
-        return this.renderer.getDisplayIndentGuides();
-    };
-    this.setShowPrintMargin = function(showPrintMargin) {
-        this.renderer.setShowPrintMargin(showPrintMargin);
-    };
-    this.getShowPrintMargin = function() {
-        return this.renderer.getShowPrintMargin();
-    };
-    this.setPrintMarginColumn = function(showPrintMargin) {
-        this.renderer.setPrintMarginColumn(showPrintMargin);
-    };
-    this.getPrintMarginColumn = function() {
-        return this.renderer.getPrintMarginColumn();
-    };
-    this.setReadOnly = function(readOnly) {
-        this.setOption("readOnly", readOnly);
-    };
-    this.getReadOnly = function() {
-        return this.getOption("readOnly");
-    };
-    this.setBehavioursEnabled = function (enabled) {
-        this.setOption("behavioursEnabled", enabled);
-    };
-    this.getBehavioursEnabled = function () {
-        return this.getOption("behavioursEnabled");
-    };
-    this.setWrapBehavioursEnabled = function (enabled) {
-        this.setOption("wrapBehavioursEnabled", enabled);
-    };
-    this.getWrapBehavioursEnabled = function () {
-        return this.getOption("wrapBehavioursEnabled");
-    };
-    this.setShowFoldWidgets = function(show) {
-        this.setOption("showFoldWidgets", show);
-
-    };
-    this.getShowFoldWidgets = function() {
-        return this.getOption("showFoldWidgets");
-    };
-
-    this.setFadeFoldWidgets = function(fade) {
-        this.setOption("fadeFoldWidgets", fade);
-    };
-
-    this.getFadeFoldWidgets = function() {
-        return this.getOption("fadeFoldWidgets");
-    };
-    this.remove = function(dir) {
-        if (this.selection.isEmpty()){
-            if (dir == "left")
-                this.selection.selectLeft();
-            else
-                this.selection.selectRight();
-        }
-
-        var range = this.getSelectionRange();
-        if (this.getBehavioursEnabled()) {
-            var session = this.session;
-            var state = session.getState(range.start.row);
-            var new_range = session.getMode().transformAction(state, 'deletion', this, session, range);
-
-            if (range.end.column === 0) {
-                var text = session.getTextRange(range);
-                if (text[text.length - 1] == "\n") {
-                    var line = session.getLine(range.end.row);
-                    if (/^\s+$/.test(line)) {
-                        range.end.column = line.length;
-                    }
-                }
-            }
-            if (new_range)
-                range = new_range;
-        }
-
-        this.session.remove(range);
-        this.clearSelection();
-    };
-    this.removeWordRight = function() {
-        if (this.selection.isEmpty())
-            this.selection.selectWordRight();
-
-        this.session.remove(this.getSelectionRange());
-        this.clearSelection();
-    };
-    this.removeWordLeft = function() {
-        if (this.selection.isEmpty())
-            this.selection.selectWordLeft();
-
-        this.session.remove(this.getSelectionRange());
-        this.clearSelection();
-    };
-    this.removeToLineStart = function() {
-        if (this.selection.isEmpty())
-            this.selection.selectLineStart();
-
-        this.session.remove(this.getSelectionRange());
-        this.clearSelection();
-    };
-    this.removeToLineEnd = function() {
-        if (this.selection.isEmpty())
-            this.selection.selectLineEnd();
-
-        var range = this.getSelectionRange();
-        if (range.start.column == range.end.column && range.start.row == range.end.row) {
-            range.end.column = 0;
-            range.end.row++;
-        }
-
-        this.session.remove(range);
-        this.clearSelection();
-    };
-    this.splitLine = function() {
-        if (!this.selection.isEmpty()) {
-            this.session.remove(this.getSelectionRange());
-            this.clearSelection();
-        }
-
-        var cursor = this.getCursorPosition();
-        this.insert("\n");
-        this.moveCursorToPosition(cursor);
-    };
-    this.transposeLetters = function() {
-        if (!this.selection.isEmpty()) {
-            return;
-        }
-
-        var cursor = this.getCursorPosition();
-        var column = cursor.column;
-        if (column === 0)
-            return;
-
-        var line = this.session.getLine(cursor.row);
-        var swap, range;
-        if (column < line.length) {
-            swap = line.charAt(column) + line.charAt(column-1);
-            range = new Range(cursor.row, column-1, cursor.row, column+1);
-        }
-        else {
-            swap = line.charAt(column-1) + line.charAt(column-2);
-            range = new Range(cursor.row, column-2, cursor.row, column);
-        }
-        this.session.replace(range, swap);
-    };
-    this.toLowerCase = function() {
-        var originalRange = this.getSelectionRange();
-        if (this.selection.isEmpty()) {
-            this.selection.selectWord();
-        }
-
-        var range = this.getSelectionRange();
-        var text = this.session.getTextRange(range);
-        this.session.replace(range, text.toLowerCase());
-        this.selection.setSelectionRange(originalRange);
-    };
-    this.toUpperCase = function() {
-        var originalRange = this.getSelectionRange();
-        if (this.selection.isEmpty()) {
-            this.selection.selectWord();
-        }
-
-        var range = this.getSelectionRange();
-        var text = this.session.getTextRange(range);
-        this.session.replace(range, text.toUpperCase());
-        this.selection.setSelectionRange(originalRange);
-    };
-    this.indent = function() {
-        var session = this.session;
-        var range = this.getSelectionRange();
-
-        if (range.start.row < range.end.row) {
-            var rows = this.$getSelectedRows();
-            session.indentRows(rows.first, rows.last, "\t");
-            return;
-        } else if (range.start.column < range.end.column) {
-            var text = session.getTextRange(range);
-            if (!/^\s+$/.test(text)) {
-                var rows = this.$getSelectedRows();
-                session.indentRows(rows.first, rows.last, "\t");
-                return;
-            }
-        }
-
-        var line = session.getLine(range.start.row);
-        var position = range.start;
-        var size = session.getTabSize();
-        var column = session.documentToScreenColumn(position.row, position.column);
-
-        if (this.session.getUseSoftTabs()) {
-            var count = (size - column % size);
-            var indentString = lang.stringRepeat(" ", count);
-        } else {
-            var count = column % size;
-            while (line[range.start.column] == " " && count) {
-                range.start.column--;
-                count--;
-            }
-            this.selection.setSelectionRange(range);
-            indentString = "\t";
-        }
-        return this.insert(indentString);
-    };
-    this.blockIndent = function() {
-        var rows = this.$getSelectedRows();
-        this.session.indentRows(rows.first, rows.last, "\t");
-    };
-    this.blockOutdent = function() {
-        var selection = this.session.getSelection();
-        this.session.outdentRows(selection.getRange());
-    };
-    this.sortLines = function() {
-        var rows = this.$getSelectedRows();
-        var session = this.session;
-
-        var lines = [];
-        for (i = rows.first; i <= rows.last; i++)
-            lines.push(session.getLine(i));
-
-        lines.sort(function(a, b) {
-            if (a.toLowerCase() < b.toLowerCase()) return -1;
-            if (a.toLowerCase() > b.toLowerCase()) return 1;
-            return 0;
-        });
-
-        var deleteRange = new Range(0, 0, 0, 0);
-        for (var i = rows.first; i <= rows.last; i++) {
-            var line = session.getLine(i);
-            deleteRange.start.row = i;
-            deleteRange.end.row = i;
-            deleteRange.end.column = line.length;
-            session.replace(deleteRange, lines[i-rows.first]);
-        }
-    };
-    this.toggleCommentLines = function() {
-        var state = this.session.getState(this.getCursorPosition().row);
-        var rows = this.$getSelectedRows();
-        this.session.getMode().toggleCommentLines(state, this.session, rows.first, rows.last);
-    };
-
-    this.toggleBlockComment = function() {
-        var cursor = this.getCursorPosition();
-        var state = this.session.getState(cursor.row);
-        var range = this.getSelectionRange();
-        this.session.getMode().toggleBlockComment(state, this.session, range, cursor);
-    };
-    this.getNumberAt = function(row, column) {
-        var _numberRx = /[\-]?[0-9]+(?:\.[0-9]+)?/g;
-        _numberRx.lastIndex = 0;
-
-        var s = this.session.getLine(row);
-        while (_numberRx.lastIndex < column) {
-            var m = _numberRx.exec(s);
-            if(m.index <= column && m.index+m[0].length >= column){
-                var number = {
-                    value: m[0],
-                    start: m.index,
-                    end: m.index+m[0].length
-                };
-                return number;
-            }
-        }
-        return null;
-    };
-    this.modifyNumber = function(amount) {
-        var row = this.selection.getCursor().row;
-        var column = this.selection.getCursor().column;
-        var charRange = new Range(row, column-1, row, column);
-
-        var c = this.session.getTextRange(charRange);
-        if (!isNaN(parseFloat(c)) && isFinite(c)) {
-            var nr = this.getNumberAt(row, column);
-            if (nr) {
-                var fp = nr.value.indexOf(".") >= 0 ? nr.start + nr.value.indexOf(".") + 1 : nr.end;
-                var decimals = nr.start + nr.value.length - fp;
-
-                var t = parseFloat(nr.value);
-                t *= Math.pow(10, decimals);
-
-
-                if(fp !== nr.end && column < fp){
-                    amount *= Math.pow(10, nr.end - column - 1);
-                } else {
-                    amount *= Math.pow(10, nr.end - column);
-                }
-
-                t += amount;
-                t /= Math.pow(10, decimals);
-                var nnr = t.toFixed(decimals);
-                var replaceRange = new Range(row, nr.start, row, nr.end);
-                this.session.replace(replaceRange, nnr);
-                this.moveCursorTo(row, Math.max(nr.start +1, column + nnr.length - nr.value.length));
-
-            }
-        }
-    };
-    this.removeLines = function() {
-        var rows = this.$getSelectedRows();
-        this.session.removeFullLines(rows.first, rows.last);
-        this.clearSelection();
-    };
-
-    this.duplicateSelection = function() {
-        var sel = this.selection;
-        var doc = this.session;
-        var range = sel.getRange();
-        var reverse = sel.isBackwards();
-        if (range.isEmpty()) {
-            var row = range.start.row;
-            doc.duplicateLines(row, row);
-        } else {
-            var point = reverse ? range.start : range.end;
-            var endPoint = doc.insert(point, doc.getTextRange(range), false);
-            range.start = point;
-            range.end = endPoint;
-
-            sel.setSelectionRange(range, reverse);
-        }
-    };
-    this.moveLinesDown = function() {
-        this.$moveLines(1, false);
-    };
-    this.moveLinesUp = function() {
-        this.$moveLines(-1, false);
-    };
-    this.moveText = function(range, toPosition, copy) {
-        return this.session.moveText(range, toPosition, copy);
-    };
-    this.copyLinesUp = function() {
-        this.$moveLines(-1, true);
-    };
-    this.copyLinesDown = function() {
-        this.$moveLines(1, true);
-    };
-    this.$moveLines = function(dir, copy) {
-        var rows, moved;
-        var selection = this.selection;
-        if (!selection.inMultiSelectMode || this.inVirtualSelectionMode) {
-            var range = selection.toOrientedRange();
-            rows = this.$getSelectedRows(range);
-            moved = this.session.$moveLines(rows.first, rows.last, copy ? 0 : dir);
-            if (copy && dir == -1) moved = 0;
-            range.moveBy(moved, 0);
-            selection.fromOrientedRange(range);
-        } else {
-            var ranges = selection.rangeList.ranges;
-            selection.rangeList.detach(this.session);
-            this.inVirtualSelectionMode = true;
-
-            var diff = 0;
-            var totalDiff = 0;
-            var l = ranges.length;
-            for (var i = 0; i < l; i++) {
-                var rangeIndex = i;
-                ranges[i].moveBy(diff, 0);
-                rows = this.$getSelectedRows(ranges[i]);
-                var first = rows.first;
-                var last = rows.last;
-                while (++i < l) {
-                    if (totalDiff) ranges[i].moveBy(totalDiff, 0);
-                    var subRows = this.$getSelectedRows(ranges[i]);
-                    if (copy && subRows.first != last)
-                        break;
-                    else if (!copy && subRows.first > last + 1)
-                        break;
-                    last = subRows.last;
-                }
-                i--;
-                diff = this.session.$moveLines(first, last, copy ? 0 : dir);
-                if (copy && dir == -1) rangeIndex = i + 1;
-                while (rangeIndex <= i) {
-                    ranges[rangeIndex].moveBy(diff, 0);
-                    rangeIndex++;
-                }
-                if (!copy) diff = 0;
-                totalDiff += diff;
-            }
-
-            selection.fromOrientedRange(selection.ranges[0]);
-            selection.rangeList.attach(this.session);
-            this.inVirtualSelectionMode = false;
-        }
-    };
-    this.$getSelectedRows = function(range) {
-        range = (range || this.getSelectionRange()).collapseRows();
-
-        return {
-            first: this.session.getRowFoldStart(range.start.row),
-            last: this.session.getRowFoldEnd(range.end.row)
-        };
-    };
-
-    this.onCompositionStart = function(text) {
-        this.renderer.showComposition(this.getCursorPosition());
-    };
-
-    this.onCompositionUpdate = function(text) {
-        this.renderer.setCompositionText(text);
-    };
-
-    this.onCompositionEnd = function() {
-        this.renderer.hideComposition();
-    };
-    this.getFirstVisibleRow = function() {
-        return this.renderer.getFirstVisibleRow();
-    };
-    this.getLastVisibleRow = function() {
-        return this.renderer.getLastVisibleRow();
-    };
-    this.isRowVisible = function(row) {
-        return (row >= this.getFirstVisibleRow() && row <= this.getLastVisibleRow());
-    };
-    this.isRowFullyVisible = function(row) {
-        return (row >= this.renderer.getFirstFullyVisibleRow() && row <= this.renderer.getLastFullyVisibleRow());
-    };
-    this.$getVisibleRowCount = function() {
-        return this.renderer.getScrollBottomRow() - this.renderer.getScrollTopRow() + 1;
-    };
-
-    this.$moveByPage = function(dir, select) {
-        var renderer = this.renderer;
-        var config = this.renderer.layerConfig;
-        var rows = dir * Math.floor(config.height / config.lineHeight);
-
-        this.$blockScrolling++;
-        if (select === true) {
-            this.selection.$moveSelection(function(){
-                this.moveCursorBy(rows, 0);
-            });
-        } else if (select === false) {
-            this.selection.moveCursorBy(rows, 0);
-            this.selection.clearSelection();
-        }
-        this.$blockScrolling--;
-
-        var scrollTop = renderer.scrollTop;
-
-        renderer.scrollBy(0, rows * config.lineHeight);
-        if (select != null)
-            renderer.scrollCursorIntoView(null, 0.5);
-
-        renderer.animateScrolling(scrollTop);
-    };
-    this.selectPageDown = function() {
-        this.$moveByPage(1, true);
-    };
-    this.selectPageUp = function() {
-        this.$moveByPage(-1, true);
-    };
-    this.gotoPageDown = function() {
-       this.$moveByPage(1, false);
-    };
-    this.gotoPageUp = function() {
-        this.$moveByPage(-1, false);
-    };
-    this.scrollPageDown = function() {
-        this.$moveByPage(1);
-    };
-    this.scrollPageUp = function() {
-        this.$moveByPage(-1);
-    };
-    this.scrollToRow = function(row) {
-        this.renderer.scrollToRow(row);
-    };
-    this.scrollToLine = function(line, center, animate, callback) {
-        this.renderer.scrollToLine(line, center, animate, callback);
-    };
-    this.centerSelection = function() {
-        var range = this.getSelectionRange();
-        var pos = {
-            row: Math.floor(range.start.row + (range.end.row - range.start.row) / 2),
-            column: Math.floor(range.start.column + (range.end.column - range.start.column) / 2)
-        };
-        this.renderer.alignCursor(pos, 0.5);
-    };
-    this.getCursorPosition = function() {
-        return this.selection.getCursor();
-    };
-    this.getCursorPositionScreen = function() {
-        return this.session.documentToScreenPosition(this.getCursorPosition());
-    };
-    this.getSelectionRange = function() {
-        return this.selection.getRange();
-    };
-    this.selectAll = function() {
-        this.$blockScrolling += 1;
-        this.selection.selectAll();
-        this.$blockScrolling -= 1;
-    };
-    this.clearSelection = function() {
-        this.selection.clearSelection();
-    };
-    this.moveCursorTo = function(row, column) {
-        this.selection.moveCursorTo(row, column);
-    };
-    this.moveCursorToPosition = function(pos) {
-        this.selection.moveCursorToPosition(pos);
-    };
-    this.jumpToMatching = function(select, expand) {
-        var cursor = this.getCursorPosition();
-        var iterator = new TokenIterator(this.session, cursor.row, cursor.column);
-        var prevToken = iterator.getCurrentToken();
-        var token = prevToken || iterator.stepForward();
-
-        if (!token) return;
-        var matchType;
-        var found = false;
-        var depth = {};
-        var i = cursor.column - token.start;
-        var bracketType;
-        var brackets = {
-            ")": "(",
-            "(": "(",
-            "]": "[",
-            "[": "[",
-            "{": "{",
-            "}": "{"
-        };
-
-        do {
-            if (token.value.match(/[{}()\[\]]/g)) {
-                for (; i < token.value.length && !found; i++) {
-                    if (!brackets[token.value[i]]) {
-                        continue;
-                    }
-
-                    bracketType = brackets[token.value[i]] + '.' + token.type.replace("rparen", "lparen");
-
-                    if (isNaN(depth[bracketType])) {
-                        depth[bracketType] = 0;
-                    }
-
-                    switch (token.value[i]) {
-                        case '(':
-                        case '[':
-                        case '{':
-                            depth[bracketType]++;
-                            break;
-                        case ')':
-                        case ']':
-                        case '}':
-                            depth[bracketType]--;
-
-                            if (depth[bracketType] === -1) {
-                                matchType = 'bracket';
-                                found = true;
-                            }
-                        break;
-                    }
-                }
-            }
-            else if (token && token.type.indexOf('tag-name') !== -1) {
-                if (isNaN(depth[token.value])) {
-                    depth[token.value] = 0;
-                }
-
-                if (prevToken.value === '<') {
-                    depth[token.value]++;
-                }
-                else if (prevToken.value === '</') {
-                    depth[token.value]--;
-                }
-
-                if (depth[token.value] === -1) {
-                    matchType = 'tag';
-                    found = true;
-                }
-            }
-
-            if (!found) {
-                prevToken = token;
-                token = iterator.stepForward();
-                i = 0;
-            }
-        } while (token && !found);
-        if (!matchType)
-            return;
-
-        var range, pos;
-        if (matchType === 'bracket') {
-            range = this.session.getBracketRange(cursor);
-            if (!range) {
-                range = new Range(
-                    iterator.getCurrentTokenRow(),
-                    iterator.getCurrentTokenColumn() + i - 1,
-                    iterator.getCurrentTokenRow(),
-                    iterator.getCurrentTokenColumn() + i - 1
-                );
-                pos = range.start;
-                if (expand || pos.row === cursor.row && Math.abs(pos.column - cursor.column) < 2)
-                    range = this.session.getBracketRange(pos);
-            }
-        }
-        else if (matchType === 'tag') {
-            if (token && token.type.indexOf('tag-name') !== -1)
-                var tag = token.value;
-            else
-                return;
-
-            range = new Range(
-                iterator.getCurrentTokenRow(),
-                iterator.getCurrentTokenColumn() - 2,
-                iterator.getCurrentTokenRow(),
-                iterator.getCurrentTokenColumn() - 2
-            );
-            if (range.compare(cursor.row, cursor.column) === 0) {
-                found = false;
-                do {
-                    token = prevToken;
-                    prevToken = iterator.stepBackward();
-
-                    if (prevToken) {
-                        if (prevToken.type.indexOf('tag-close') !== -1) {
-                            range.setEnd(iterator.getCurrentTokenRow(), iterator.getCurrentTokenColumn() + 1);
-                        }
-
-                        if (token.value === tag && token.type.indexOf('tag-name') !== -1) {
-                            if (prevToken.value === '<') {
-                                depth[tag]++;
-                            }
-                            else if (prevToken.value === '</') {
-                                depth[tag]--;
-                            }
-
-                            if (depth[tag] === 0)
-                                found = true;
-                        }
-                    }
-                } while (prevToken && !found);
-            }
-            if (token && token.type.indexOf('tag-name')) {
-                pos = range.start;
-                if (pos.row == cursor.row && Math.abs(pos.column - cursor.column) < 2)
-                    pos = range.end;
-            }
-        }
-
-        pos = range && range.cursor || pos;
-        if (pos) {
-            if (select) {
-                if (range && expand) {
-                    this.selection.setRange(range);
-                } else if (range && range.isEqual(this.getSelectionRange())) {
-                    this.clearSelection();
-                } else {
-                    this.selection.selectTo(pos.row, pos.column);
-                }
-            } else {
-                this.selection.moveTo(pos.row, pos.column);
-            }
-        }
-    };
-    this.gotoLine = function(lineNumber, column, animate) {
-        this.selection.clearSelection();
-        this.session.unfold({row: lineNumber - 1, column: column || 0});
-
-        this.$blockScrolling += 1;
-        this.exitMultiSelectMode && this.exitMultiSelectMode();
-        this.moveCursorTo(lineNumber - 1, column || 0);
-        this.$blockScrolling -= 1;
-
-        if (!this.isRowFullyVisible(lineNumber - 1))
-            this.scrollToLine(lineNumber - 1, true, animate);
-    };
-    this.navigateTo = function(row, column) {
-        this.selection.moveTo(row, column);
-    };
-    this.navigateUp = function(times) {
-        if (this.selection.isMultiLine() && !this.selection.isBackwards()) {
-            var selectionStart = this.selection.anchor.getPosition();
-            return this.moveCursorToPosition(selectionStart);
-        }
-        this.selection.clearSelection();
-        this.selection.moveCursorBy(-times || -1, 0);
-    };
-    this.navigateDown = function(times) {
-        if (this.selection.isMultiLine() && this.selection.isBackwards()) {
-            var selectionEnd = this.selection.anchor.getPosition();
-            return this.moveCursorToPosition(selectionEnd);
-        }
-        this.selection.clearSelection();
-        this.selection.moveCursorBy(times || 1, 0);
-    };
-    this.navigateLeft = function(times) {
-        if (!this.selection.isEmpty()) {
-            var selectionStart = this.getSelectionRange().start;
-            this.moveCursorToPosition(selectionStart);
-        }
-        else {
-            times = times || 1;
-            while (times--) {
-                this.selection.moveCursorLeft();
-            }
-        }
-        this.clearSelection();
-    };
-    this.navigateRight = function(times) {
-        if (!this.selection.isEmpty()) {
-            var selectionEnd = this.getSelectionRange().end;
-            this.moveCursorToPosition(selectionEnd);
-        }
-        else {
-            times = times || 1;
-            while (times--) {
-                this.selection.moveCursorRight();
-            }
-        }
-        this.clearSelection();
-    };
-    this.navigateLineStart = function() {
-        this.selection.moveCursorLineStart();
-        this.clearSelection();
-    };
-    this.navigateLineEnd = function() {
-        this.selection.moveCursorLineEnd();
-        this.clearSelection();
-    };
-    this.navigateFileEnd = function() {
-        this.selection.moveCursorFileEnd();
-        this.clearSelection();
-    };
-    this.navigateFileStart = function() {
-        this.selection.moveCursorFileStart();
-        this.clearSelection();
-    };
-    this.navigateWordRight = function() {
-        this.selection.moveCursorWordRight();
-        this.clearSelection();
-    };
-    this.navigateWordLeft = function() {
-        this.selection.moveCursorWordLeft();
-        this.clearSelection();
-    };
-    this.replace = function(replacement, options) {
-        if (options)
-            this.$search.set(options);
-
-        var range = this.$search.find(this.session);
-        var replaced = 0;
-        if (!range)
-            return replaced;
-
-        if (this.$tryReplace(range, replacement)) {
-            replaced = 1;
-        }
-        if (range !== null) {
-            this.selection.setSelectionRange(range);
-            this.renderer.scrollSelectionIntoView(range.start, range.end);
-        }
-
-        return replaced;
-    };
-    this.replaceAll = function(replacement, options) {
-        if (options) {
-            this.$search.set(options);
-        }
-
-        var ranges = this.$search.findAll(this.session);
-        var replaced = 0;
-        if (!ranges.length)
-            return replaced;
-
-        this.$blockScrolling += 1;
-
-        var selection = this.getSelectionRange();
-        this.selection.moveTo(0, 0);
-
-        for (var i = ranges.length - 1; i >= 0; --i) {
-            if(this.$tryReplace(ranges[i], replacement)) {
-                replaced++;
-            }
-        }
-
-        this.selection.setSelectionRange(selection);
-        this.$blockScrolling -= 1;
-
-        return replaced;
-    };
-
-    this.$tryReplace = function(range, replacement) {
-        var input = this.session.getTextRange(range);
-        replacement = this.$search.replace(input, replacement);
-        if (replacement !== null) {
-            range.end = this.session.replace(range, replacement);
-            return range;
-        } else {
-            return null;
-        }
-    };
-    this.getLastSearchOptions = function() {
-        return this.$search.getOptions();
-    };
-    this.find = function(needle, options, animate) {
-        if (!options)
-            options = {};
-
-        if (typeof needle == "string" || needle instanceof RegExp)
-            options.needle = needle;
-        else if (typeof needle == "object")
-            oop.mixin(options, needle);
-
-        var range = this.selection.getRange();
-        if (options.needle == null) {
-            needle = this.session.getTextRange(range)
-                || this.$search.$options.needle;
-            if (!needle) {
-                range = this.session.getWordRange(range.start.row, range.start.column);
-                needle = this.session.getTextRange(range);
-            }
-            this.$search.set({needle: needle});
-        }
-
-        this.$search.set(options);
-        if (!options.start)
-            this.$search.set({start: range});
-
-        var newRange = this.$search.find(this.session);
-        if (options.preventScroll)
-            return newRange;
-        if (newRange) {
-            this.revealRange(newRange, animate);
-            return newRange;
-        }
-        if (options.backwards)
-            range.start = range.end;
-        else
-            range.end = range.start;
-        this.selection.setRange(range);
-    };
-    this.findNext = function(options, animate) {
-        this.find({skipCurrent: true, backwards: false}, options, animate);
-    };
-    this.findPrevious = function(options, animate) {
-        this.find(options, {skipCurrent: true, backwards: true}, animate);
-    };
-
-    this.revealRange = function(range, animate) {
-        this.$blockScrolling += 1;
-        this.session.unfold(range);
-        this.selection.setSelectionRange(range);
-        this.$blockScrolling -= 1;
-
-        var scrollTop = this.renderer.scrollTop;
-        this.renderer.scrollSelectionIntoView(range.start, range.end, 0.5);
-        if (animate !== false)
-            this.renderer.animateScrolling(scrollTop);
-    };
-    this.undo = function() {
-        this.$blockScrolling++;
-        this.session.getUndoManager().undo();
-        this.$blockScrolling--;
-        this.renderer.scrollCursorIntoView(null, 0.5);
-    };
-    this.redo = function() {
-        this.$blockScrolling++;
-        this.session.getUndoManager().redo();
-        this.$blockScrolling--;
-        this.renderer.scrollCursorIntoView(null, 0.5);
-    };
-    this.destroy = function() {
-        this.renderer.destroy();
-        this._signal("destroy", this);
-        if (this.session) {
-            this.session.destroy();
-        }
-    };
-    this.setAutoScrollEditorIntoView = function(enable) {
-        if (!enable)
-            return;
-        var rect;
-        var self = this;
-        var shouldScroll = false;
-        if (!this.$scrollAnchor)
-            this.$scrollAnchor = document.createElement("div");
-        var scrollAnchor = this.$scrollAnchor;
-        scrollAnchor.style.cssText = "position:absolute !important";
-        this.container.insertBefore(scrollAnchor, this.container.firstChild);
-        var onChangeSelection = this.on("changeSelection", function() {
-            shouldScroll = true;
-        });
-        var onBeforeRender = this.renderer.on("beforeRender", function() {
-            if (shouldScroll)
-                rect = self.renderer.container.getBoundingClientRect();
-        });
-        var onAfterRender = this.renderer.on("afterRender", function() {
-            if (shouldScroll && rect && (self.isFocused()
-                || self.searchBox && self.searchBox.isFocused())
-            ) {
-                var renderer = self.renderer;
-                var pos = renderer.$cursorLayer.$pixelPos;
-                var config = renderer.layerConfig;
-                var top = pos.top - config.offset;
-                if (pos.top >= 0 && top + rect.top < 0) {
-                    shouldScroll = true;
-                } else if (pos.top < config.height &&
-                    pos.top + rect.top + config.lineHeight > window.innerHeight) {
-                    shouldScroll = false;
-                } else {
-                    shouldScroll = null;
-                }
-                if (shouldScroll != null) {
-                    scrollAnchor.style.top = top + "px";
-                    scrollAnchor.style.left = pos.left + "px";
-                    scrollAnchor.style.height = config.lineHeight + "px";
-                    scrollAnchor.scrollIntoView(shouldScroll);
-                }
-                shouldScroll = rect = null;
-            }
-        });
-        this.setAutoScrollEditorIntoView = function(enable) {
-            if (enable)
-                return;
-            delete this.setAutoScrollEditorIntoView;
-            this.off("changeSelection", onChangeSelection);
-            this.renderer.off("afterRender", onAfterRender);
-            this.renderer.off("beforeRender", onBeforeRender);
-        };
-    };
-
-
-    this.$resetCursorStyle = function() {
-        var style = this.$cursorStyle || "ace";
-        var cursorLayer = this.renderer.$cursorLayer;
-        if (!cursorLayer)
-            return;
-        cursorLayer.setSmoothBlinking(/smooth/.test(style));
-        cursorLayer.isBlinking = !this.$readOnly && style != "wide";
-        dom.setCssClass(cursorLayer.element, "ace_slim-cursors", /slim/.test(style));
-    };
-
-}).call(Editor.prototype);
-
-
-
-config.defineOptions(Editor.prototype, "editor", {
-    selectionStyle: {
-        set: function(style) {
-            this.onSelectionChange();
-            this._signal("changeSelectionStyle", {data: style});
-        },
-        initialValue: "line"
-    },
-    highlightActiveLine: {
-        set: function() {this.$updateHighlightActiveLine();},
-        initialValue: true
-    },
-    highlightSelectedWord: {
-        set: function(shouldHighlight) {this.$onSelectionChange();},
-        initialValue: true
-    },
-    readOnly: {
-        set: function(readOnly) {
-            this.$resetCursorStyle();
-        },
-        initialValue: false
-    },
-    cursorStyle: {
-        set: function(val) { this.$resetCursorStyle(); },
-        values: ["ace", "slim", "smooth", "wide"],
-        initialValue: "ace"
-    },
-    mergeUndoDeltas: {
-        values: [false, true, "always"],
-        initialValue: true
-    },
-    behavioursEnabled: {initialValue: true},
-    wrapBehavioursEnabled: {initialValue: true},
-    autoScrollEditorIntoView: {
-        set: function(val) {this.setAutoScrollEditorIntoView(val)}
-    },
-    keyboardHandler: {
-        set: function(val) { this.setKeyboardHandler(val); },
-        get: function() { return this.keybindingId; },
-        handlesSet: true
-    },
-
-    hScrollBarAlwaysVisible: "renderer",
-    vScrollBarAlwaysVisible: "renderer",
-    highlightGutterLine: "renderer",
-    animatedScroll: "renderer",
-    showInvisibles: "renderer",
-    showPrintMargin: "renderer",
-    printMarginColumn: "renderer",
-    printMargin: "renderer",
-    fadeFoldWidgets: "renderer",
-    showFoldWidgets: "renderer",
-    showLineNumbers: "renderer",
-    showGutter: "renderer",
-    displayIndentGuides: "renderer",
-    fontSize: "renderer",
-    fontFamily: "renderer",
-    maxLines: "renderer",
-    minLines: "renderer",
-    scrollPastEnd: "renderer",
-    fixedWidthGutter: "renderer",
-    theme: "renderer",
-
-    scrollSpeed: "$mouseHandler",
-    dragDelay: "$mouseHandler",
-    dragEnabled: "$mouseHandler",
-    focusTimout: "$mouseHandler",
-    tooltipFollowsMouse: "$mouseHandler",
-
-    firstLineNumber: "session",
-    overwrite: "session",
-    newLineMode: "session",
-    useWorker: "session",
-    useSoftTabs: "session",
-    tabSize: "session",
-    wrap: "session",
-    indentedSoftWrap: "session",
-    foldStyle: "session",
-    mode: "session"
-});
-
-exports.Editor = Editor;
-});
-
-ace.define("ace/undomanager",["require","exports","module"], function(require, exports, module) {
-"use strict";
-var UndoManager = function() {
-    this.reset();
-};
-
-(function() {
-    this.execute = function(options) {
-        var deltaSets = options.args[0];
-        this.$doc  = options.args[1];
-        if (options.merge && this.hasUndo()){
-            this.dirtyCounter--;
-            deltaSets = this.$undoStack.pop().concat(deltaSets);
-        }
-        this.$undoStack.push(deltaSets);
-        this.$redoStack = [];
-        if (this.dirtyCounter < 0) {
-            this.dirtyCounter = NaN;
-        }
-        this.dirtyCounter++;
-    };
-    this.undo = function(dontSelect) {
-        var deltaSets = this.$undoStack.pop();
-        var undoSelectionRange = null;
-        if (deltaSets) {
-            undoSelectionRange = this.$doc.undoChanges(deltaSets, dontSelect);
-            this.$redoStack.push(deltaSets);
-            this.dirtyCounter--;
-        }
-
-        return undoSelectionRange;
-    };
-    this.redo = function(dontSelect) {
-        var deltaSets = this.$redoStack.pop();
-        var redoSelectionRange = null;
-        if (deltaSets) {
-            redoSelectionRange =
-                this.$doc.redoChanges(this.$deserializeDeltas(deltaSets), dontSelect);
-            this.$undoStack.push(deltaSets);
-            this.dirtyCounter++;
-        }
-        return redoSelectionRange;
-    };
-    this.reset = function() {
-        this.$undoStack = [];
-        this.$redoStack = [];
-        this.dirtyCounter = 0;
-    };
-    this.hasUndo = function() {
-        return this.$undoStack.length > 0;
-    };
-    this.hasRedo = function() {
-        return this.$redoStack.length > 0;
-    };
-    this.markClean = function() {
-        this.dirtyCounter = 0;
-    };
-    this.isClean = function() {
-        return this.dirtyCounter === 0;
-    };
-    this.$serializeDeltas = function(deltaSets) {
-        return cloneDeltaSetsObj(deltaSets, $serializeDelta);
-    };
-    this.$deserializeDeltas = function(deltaSets) {
-        return cloneDeltaSetsObj(deltaSets, $deserializeDelta);
-    };
-
-    function $serializeDelta(delta){
-        return {
-            action: delta.action,
-            start: delta.start,
-            end: delta.end,
-            lines: delta.lines.length == 1 ? null : delta.lines,
-            text: delta.lines.length == 1 ? delta.lines[0] : null
-        };
-    }
-
-    function $deserializeDelta(delta) {
-        return {
-            action: delta.action,
-            start: delta.start,
-            end: delta.end,
-            lines: delta.lines || [delta.text]
-        };
-    }
-
-    function cloneDeltaSetsObj(deltaSets_old, fnGetModifiedDelta) {
-        var deltaSets_new = new Array(deltaSets_old.length);
-        for (var i = 0; i < deltaSets_old.length; i++) {
-            var deltaSet_old = deltaSets_old[i];
-            var deltaSet_new = { group: deltaSet_old.group, deltas: new Array(deltaSet_old.length)};
-
-            for (var j = 0; j < deltaSet_old.deltas.length; j++) {
-                var delta_old = deltaSet_old.deltas[j];
-                deltaSet_new.deltas[j] = fnGetModifiedDelta(delta_old);
-            }
-
-            deltaSets_new[i] = deltaSet_new;
-        }
-        return deltaSets_new;
-    }
-
-}).call(UndoManager.prototype);
-
-exports.UndoManager = UndoManager;
-});
-
-ace.define("ace/layer/gutter",["require","exports","module","ace/lib/dom","ace/lib/oop","ace/lib/lang","ace/lib/event_emitter"], function(require, exports, module) {
-"use strict";
-
-var dom = require("../lib/dom");
-var oop = require("../lib/oop");
-var lang = require("../lib/lang");
-var EventEmitter = require("../lib/event_emitter").EventEmitter;
-
-var Gutter = function(parentEl) {
-    this.element = dom.createElement("div");
-    this.element.className = "ace_layer ace_gutter-layer";
-    parentEl.appendChild(this.element);
-    this.setShowFoldWidgets(this.$showFoldWidgets);
-
-    this.gutterWidth = 0;
-
-    this.$annotations = [];
-    this.$updateAnnotations = this.$updateAnnotations.bind(this);
-
-    this.$cells = [];
-};
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-
-    this.setSession = function(session) {
-        if (this.session)
-            this.session.removeEventListener("change", this.$updateAnnotations);
-        this.session = session;
-        if (session)
-            session.on("change", this.$updateAnnotations);
-    };
-
-    this.addGutterDecoration = function(row, className){
-        if (window.console)
-            console.warn && console.warn("deprecated use session.addGutterDecoration");
-        this.session.addGutterDecoration(row, className);
-    };
-
-    this.removeGutterDecoration = function(row, className){
-        if (window.console)
-            console.warn && console.warn("deprecated use session.removeGutterDecoration");
-        this.session.removeGutterDecoration(row, className);
-    };
-
-    this.setAnnotations = function(annotations) {
-        this.$annotations = [];
-        for (var i = 0; i < annotations.length; i++) {
-            var annotation = annotations[i];
-            var row = annotation.row;
-            var rowInfo = this.$annotations[row];
-            if (!rowInfo)
-                rowInfo = this.$annotations[row] = {text: []};
-
-            var annoText = annotation.text;
-            annoText = annoText ? lang.escapeHTML(annoText) : annotation.html || "";
-
-            if (rowInfo.text.indexOf(annoText) === -1)
-                rowInfo.text.push(annoText);
-
-            var type = annotation.type;
-            if (type == "error")
-                rowInfo.className = " ace_error";
-            else if (type == "warning" && rowInfo.className != " ace_error")
-                rowInfo.className = " ace_warning";
-            else if (type == "info" && (!rowInfo.className))
-                rowInfo.className = " ace_info";
-        }
-    };
-
-    this.$updateAnnotations = function (delta) {
-        if (!this.$annotations.length)
-            return;
-        var firstRow = delta.start.row;
-        var len = delta.end.row - firstRow;
-        if (len === 0) {
-        } else if (delta.action == 'remove') {
-            this.$annotations.splice(firstRow, len + 1, null);
-        } else {
-            var args = new Array(len + 1);
-            args.unshift(firstRow, 1);
-            this.$annotations.splice.apply(this.$annotations, args);
-        }
-    };
-
-    this.update = function(config) {
-        var session = this.session;
-        var firstRow = config.firstRow;
-        var lastRow = Math.min(config.lastRow + config.gutterOffset,  // needed to compensate for hor scollbar
-            session.getLength() - 1);
-        var fold = session.getNextFoldLine(firstRow);
-        var foldStart = fold ? fold.start.row : Infinity;
-        var foldWidgets = this.$showFoldWidgets && session.foldWidgets;
-        var breakpoints = session.$breakpoints;
-        var decorations = session.$decorations;
-        var firstLineNumber = session.$firstLineNumber;
-        var lastLineNumber = 0;
-
-        var gutterRenderer = session.gutterRenderer || this.$renderer;
-
-        var cell = null;
-        var index = -1;
-        var row = firstRow;
-        while (true) {
-            if (row > foldStart) {
-                row = fold.end.row + 1;
-                fold = session.getNextFoldLine(row, fold);
-                foldStart = fold ? fold.start.row : Infinity;
-            }
-            if (row > lastRow) {
-                while (this.$cells.length > index + 1) {
-                    cell = this.$cells.pop();
-                    this.element.removeChild(cell.element);
-                }
-                break;
-            }
-
-            cell = this.$cells[++index];
-            if (!cell) {
-                cell = {element: null, textNode: null, foldWidget: null};
-                cell.element = dom.createElement("div");
-                cell.textNode = document.createTextNode('');
-                cell.element.appendChild(cell.textNode);
-                this.element.appendChild(cell.element);
-                this.$cells[index] = cell;
-            }
-
-            var className = "ace_gutter-cell ";
-            if (breakpoints[row])
-                className += breakpoints[row];
-            if (decorations[row])
-                className += decorations[row];
-            if (this.$annotations[row])
-                className += this.$annotations[row].className;
-            if (cell.element.className != className)
-                cell.element.className = className;
-
-            var height = session.getRowLength(row) * config.lineHeight + "px";
-            if (height != cell.element.style.height)
-                cell.element.style.height = height;
-
-            if (foldWidgets) {
-                var c = foldWidgets[row];
-                if (c == null)
-                    c = foldWidgets[row] = session.getFoldWidget(row);
-            }
-
-            if (c) {
-                if (!cell.foldWidget) {
-                    cell.foldWidget = dom.createElement("span");
-                    cell.element.appendChild(cell.foldWidget);
-                }
-                var className = "ace_fold-widget ace_" + c;
-                if (c == "start" && row == foldStart && row < fold.end.row)
-                    className += " ace_closed";
-                else
-                    className += " ace_open";
-                if (cell.foldWidget.className != className)
-                    cell.foldWidget.className = className;
-
-                var height = config.lineHeight + "px";
-                if (cell.foldWidget.style.height != height)
-                    cell.foldWidget.style.height = height;
-            } else {
-                if (cell.foldWidget) {
-                    cell.element.removeChild(cell.foldWidget);
-                    cell.foldWidget = null;
-                }
-            }
-
-            var text = lastLineNumber = gutterRenderer
-                ? gutterRenderer.getText(session, row)
-                : row + firstLineNumber;
-            if (text != cell.textNode.data)
-                cell.textNode.data = text;
-
-            row++;
-        }
-
-        this.element.style.height = config.minHeight + "px";
-
-        if (this.$fixedWidth || session.$useWrapMode)
-            lastLineNumber = session.getLength() + firstLineNumber;
-
-        var gutterWidth = gutterRenderer
-            ? gutterRenderer.getWidth(session, lastLineNumber, config)
-            : lastLineNumber.toString().length * config.characterWidth;
-
-        var padding = this.$padding || this.$computePadding();
-        gutterWidth += padding.left + padding.right;
-        if (gutterWidth !== this.gutterWidth && !isNaN(gutterWidth)) {
-            this.gutterWidth = gutterWidth;
-            this.element.style.width = Math.ceil(this.gutterWidth) + "px";
-            this._emit("changeGutterWidth", gutterWidth);
-        }
-    };
-
-    this.$fixedWidth = false;
-
-    this.$showLineNumbers = true;
-    this.$renderer = "";
-    this.setShowLineNumbers = function(show) {
-        this.$renderer = !show && {
-            getWidth: function() {return ""},
-            getText: function() {return ""}
-        };
-    };
-
-    this.getShowLineNumbers = function() {
-        return this.$showLineNumbers;
-    };
-
-    this.$showFoldWidgets = true;
-    this.setShowFoldWidgets = function(show) {
-        if (show)
-            dom.addCssClass(this.element, "ace_folding-enabled");
-        else
-            dom.removeCssClass(this.element, "ace_folding-enabled");
-
-        this.$showFoldWidgets = show;
-        this.$padding = null;
-    };
-
-    this.getShowFoldWidgets = function() {
-        return this.$showFoldWidgets;
-    };
-
-    this.$computePadding = function() {
-        if (!this.element.firstChild)
-            return {left: 0, right: 0};
-        var style = dom.computedStyle(this.element.firstChild);
-        this.$padding = {};
-        this.$padding.left = parseInt(style.paddingLeft) + 1 || 0;
-        this.$padding.right = parseInt(style.paddingRight) || 0;
-        return this.$padding;
-    };
-
-    this.getRegion = function(point) {
-        var padding = this.$padding || this.$computePadding();
-        var rect = this.element.getBoundingClientRect();
-        if (point.x < padding.left + rect.left)
-            return "markers";
-        if (this.$showFoldWidgets && point.x > rect.right - padding.right)
-            return "foldWidgets";
-    };
-
-}).call(Gutter.prototype);
-
-exports.Gutter = Gutter;
-
-});
-
-ace.define("ace/layer/marker",["require","exports","module","ace/range","ace/lib/dom"], function(require, exports, module) {
-"use strict";
-
-var Range = require("../range").Range;
-var dom = require("../lib/dom");
-
-var Marker = function(parentEl) {
-    this.element = dom.createElement("div");
-    this.element.className = "ace_layer ace_marker-layer";
-    parentEl.appendChild(this.element);
-};
-
-(function() {
-
-    this.$padding = 0;
-
-    this.setPadding = function(padding) {
-        this.$padding = padding;
-    };
-    this.setSession = function(session) {
-        this.session = session;
-    };
-
-    this.setMarkers = function(markers) {
-        this.markers = markers;
-    };
-
-    this.update = function(config) {
-        var config = config || this.config;
-        if (!config)
-            return;
-
-        this.config = config;
-
-
-        var html = [];
-        for (var key in this.markers) {
-            var marker = this.markers[key];
-
-            if (!marker.range) {
-                marker.update(html, this, this.session, config);
-                continue;
-            }
-
-            var range = marker.range.clipRows(config.firstRow, config.lastRow);
-            if (range.isEmpty()) continue;
-
-            range = range.toScreenRange(this.session);
-            if (marker.renderer) {
-                var top = this.$getTop(range.start.row, config);
-                var left = this.$padding + range.start.column * config.characterWidth;
-                marker.renderer(html, range, left, top, config);
-            } else if (marker.type == "fullLine") {
-                this.drawFullLineMarker(html, range, marker.clazz, config);
-            } else if (marker.type == "screenLine") {
-                this.drawScreenLineMarker(html, range, marker.clazz, config);
-            } else if (range.isMultiLine()) {
-                if (marker.type == "text")
-                    this.drawTextMarker(html, range, marker.clazz, config);
-                else
-                    this.drawMultiLineMarker(html, range, marker.clazz, config);
-            } else {
-                this.drawSingleLineMarker(html, range, marker.clazz + " ace_start" + " ace_br15", config);
-            }
-        }
-        this.element.innerHTML = html.join("");
-    };
-
-    this.$getTop = function(row, layerConfig) {
-        return (row - layerConfig.firstRowScreen) * layerConfig.lineHeight;
-    };
-
-    function getBorderClass(tl, tr, br, bl) {
-        return (tl ? 1 : 0) | (tr ? 2 : 0) | (br ? 4 : 0) | (bl ? 8 : 0);
-    }
-    this.drawTextMarker = function(stringBuilder, range, clazz, layerConfig, extraStyle) {
-        var session = this.session;
-        var start = range.start.row;
-        var end = range.end.row;
-        var row = start;
-        var prev = 0;
-        var curr = 0;
-        var next = session.getScreenLastRowColumn(row);
-        var lineRange = new Range(row, range.start.column, row, curr);
-        for (; row <= end; row++) {
-            lineRange.start.row = lineRange.end.row = row;
-            lineRange.start.column = row == start ? range.start.column : session.getRowWrapIndent(row);
-            lineRange.end.column = next;
-            prev = curr;
-            curr = next;
-            next = row + 1 < end ? session.getScreenLastRowColumn(row + 1) : row == end ? 0 : range.end.column;
-            this.drawSingleLineMarker(stringBuilder, lineRange,
-                clazz + (row == start  ? " ace_start" : "") + " ace_br"
-                    + getBorderClass(row == start || row == start + 1 && range.start.column, prev < curr, curr > next, row == end),
-                layerConfig, row == end ? 0 : 1, extraStyle);
-        }
-    };
-    this.drawMultiLineMarker = function(stringBuilder, range, clazz, config, extraStyle) {
-        var padding = this.$padding;
-        var height = config.lineHeight;
-        var top = this.$getTop(range.start.row, config);
-        var left = padding + range.start.column * config.characterWidth;
-        extraStyle = extraStyle || "";
-
-        stringBuilder.push(
-            "<div class='", clazz, " ace_br1 ace_start' style='",
-            "height:", height, "px;",
-            "right:0;",
-            "top:", top, "px;",
-            "left:", left, "px;", extraStyle, "'></div>"
-        );
-        top = this.$getTop(range.end.row, config);
-        var width = range.end.column * config.characterWidth;
-
-        stringBuilder.push(
-            "<div class='", clazz, " ace_br12' style='",
-            "height:", height, "px;",
-            "width:", width, "px;",
-            "top:", top, "px;",
-            "left:", padding, "px;", extraStyle, "'></div>"
-        );
-        height = (range.end.row - range.start.row - 1) * config.lineHeight;
-        if (height <= 0)
-            return;
-        top = this.$getTop(range.start.row + 1, config);
-
-        var radiusClass = (range.start.column ? 1 : 0) | (range.end.column ? 0 : 8);
-
-        stringBuilder.push(
-            "<div class='", clazz, (radiusClass ? " ace_br" + radiusClass : ""), "' style='",
-            "height:", height, "px;",
-            "right:0;",
-            "top:", top, "px;",
-            "left:", padding, "px;", extraStyle, "'></div>"
-        );
-    };
-    this.drawSingleLineMarker = function(stringBuilder, range, clazz, config, extraLength, extraStyle) {
-        var height = config.lineHeight;
-        var width = (range.end.column + (extraLength || 0) - range.start.column) * config.characterWidth;
-
-        var top = this.$getTop(range.start.row, config);
-        var left = this.$padding + range.start.column * config.characterWidth;
-
-        stringBuilder.push(
-            "<div class='", clazz, "' style='",
-            "height:", height, "px;",
-            "width:", width, "px;",
-            "top:", top, "px;",
-            "left:", left, "px;", extraStyle || "", "'></div>"
-        );
-    };
-
-    this.drawFullLineMarker = function(stringBuilder, range, clazz, config, extraStyle) {
-        var top = this.$getTop(range.start.row, config);
-        var height = config.lineHeight;
-        if (range.start.row != range.end.row)
-            height += this.$getTop(range.end.row, config) - top;
-
-        stringBuilder.push(
-            "<div class='", clazz, "' style='",
-            "height:", height, "px;",
-            "top:", top, "px;",
-            "left:0;right:0;", extraStyle || "", "'></div>"
-        );
-    };
-
-    this.drawScreenLineMarker = function(stringBuilder, range, clazz, config, extraStyle) {
-        var top = this.$getTop(range.start.row, config);
-        var height = config.lineHeight;
-
-        stringBuilder.push(
-            "<div class='", clazz, "' style='",
-            "height:", height, "px;",
-            "top:", top, "px;",
-            "left:0;right:0;", extraStyle || "", "'></div>"
-        );
-    };
-
-}).call(Marker.prototype);
-
-exports.Marker = Marker;
-
-});
-
-ace.define("ace/layer/text",["require","exports","module","ace/lib/oop","ace/lib/dom","ace/lib/lang","ace/lib/useragent","ace/lib/event_emitter"], function(require, exports, module) {
-"use strict";
-
-var oop = require("../lib/oop");
-var dom = require("../lib/dom");
-var lang = require("../lib/lang");
-var useragent = require("../lib/useragent");
-var EventEmitter = require("../lib/event_emitter").EventEmitter;
-
-var Text = function(parentEl) {
-    this.element = dom.createElement("div");
-    this.element.className = "ace_layer ace_text-layer";
-    parentEl.appendChild(this.element);
-    this.$updateEolChar = this.$updateEolChar.bind(this);
-};
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-
-    this.EOF_CHAR = "\xB6";
-    this.EOL_CHAR_LF = "\xAC";
-    this.EOL_CHAR_CRLF = "\xa4";
-    this.EOL_CHAR = this.EOL_CHAR_LF;
-    this.TAB_CHAR = "\u2014"; //"\u21E5";
-    this.SPACE_CHAR = "\xB7";
-    this.$padding = 0;
-
-    this.$updateEolChar = function() {
-        var EOL_CHAR = this.session.doc.getNewLineCharacter() == "\n"
-           ? this.EOL_CHAR_LF
-           : this.EOL_CHAR_CRLF;
-        if (this.EOL_CHAR != EOL_CHAR) {
-            this.EOL_CHAR = EOL_CHAR;
-            return true;
-        }
-    }
-
-    this.setPadding = function(padding) {
-        this.$padding = padding;
-        this.element.style.padding = "0 " + padding + "px";
-    };
-
-    this.getLineHeight = function() {
-        return this.$fontMetrics.$characterSize.height || 0;
-    };
-
-    this.getCharacterWidth = function() {
-        return this.$fontMetrics.$characterSize.width || 0;
-    };
-
-    this.$setFontMetrics = function(measure) {
-        this.$fontMetrics = measure;
-        this.$fontMetrics.on("changeCharacterSize", function(e) {
-            this._signal("changeCharacterSize", e);
-        }.bind(this));
-        this.$pollSizeChanges();
-    }
-
-    this.checkForSizeChanges = function() {
-        this.$fontMetrics.checkForSizeChanges();
-    };
-    this.$pollSizeChanges = function() {
-        return this.$pollSizeChangesTimer = this.$fontMetrics.$pollSizeChanges();
-    };
-    this.setSession = function(session) {
-        this.session = session;
-        if (session)
-            this.$computeTabString();
-    };
-
-    this.showInvisibles = false;
-    this.setShowInvisibles = function(showInvisibles) {
-        if (this.showInvisibles == showInvisibles)
-            return false;
-
-        this.showInvisibles = showInvisibles;
-        this.$computeTabString();
-        return true;
-    };
-
-    this.displayIndentGuides = true;
-    this.setDisplayIndentGuides = function(display) {
-        if (this.displayIndentGuides == display)
-            return false;
-
-        this.displayIndentGuides = display;
-        this.$computeTabString();
-        return true;
-    };
-
-    this.$tabStrings = [];
-    this.onChangeTabSize =
-    this.$computeTabString = function() {
-        var tabSize = this.session.getTabSize();
-        this.tabSize = tabSize;
-        var tabStr = this.$tabStrings = [0];
-        for (var i = 1; i < tabSize + 1; i++) {
-            if (this.showInvisibles) {
-                tabStr.push("<span class='ace_invisible ace_invisible_tab'>"
-                    + lang.stringRepeat(this.TAB_CHAR, i)
-                    + "</span>");
-            } else {
-                tabStr.push(lang.stringRepeat(" ", i));
-            }
-        }
-        if (this.displayIndentGuides) {
-            this.$indentGuideRe =  /\s\S| \t|\t |\s$/;
-            var className = "ace_indent-guide";
-            var spaceClass = "";
-            var tabClass = "";
-            if (this.showInvisibles) {
-                className += " ace_invisible";
-                spaceClass = " ace_invisible_space";
-                tabClass = " ace_invisible_tab";
-                var spaceContent = lang.stringRepeat(this.SPACE_CHAR, this.tabSize);
-                var tabContent = lang.stringRepeat(this.TAB_CHAR, this.tabSize);
-            } else{
-                var spaceContent = lang.stringRepeat(" ", this.tabSize);
-                var tabContent = spaceContent;
-            }
-
-            this.$tabStrings[" "] = "<span class='" + className + spaceClass + "'>" + spaceContent + "</span>";
-            this.$tabStrings["\t"] = "<span class='" + className + tabClass + "'>" + tabContent + "</span>";
-        }
-    };
-
-    this.updateLines = function(config, firstRow, lastRow) {
-        if (this.config.lastRow != config.lastRow ||
-            this.config.firstRow != config.firstRow) {
-            this.scrollLines(config);
-        }
-        this.config = config;
-
-        var first = Math.max(firstRow, config.firstRow);
-        var last = Math.min(lastRow, config.lastRow);
-
-        var lineElements = this.element.childNodes;
-        var lineElementsIdx = 0;
-
-        for (var row = config.firstRow; row < first; row++) {
-            var foldLine = this.session.getFoldLine(row);
-            if (foldLine) {
-                if (foldLine.containsRow(first)) {
-                    first = foldLine.start.row;
-                    break;
-                } else {
-                    row = foldLine.end.row;
-                }
-            }
-            lineElementsIdx ++;
-        }
-
-        var row = first;
-        var foldLine = this.session.getNextFoldLine(row);
-        var foldStart = foldLine ? foldLine.start.row : Infinity;
-
-        while (true) {
-            if (row > foldStart) {
-                row = foldLine.end.row+1;
-                foldLine = this.session.getNextFoldLine(row, foldLine);
-                foldStart = foldLine ? foldLine.start.row :Infinity;
-            }
-            if (row > last)
-                break;
-
-            var lineElement = lineElements[lineElementsIdx++];
-            if (lineElement) {
-                var html = [];
-                this.$renderLine(
-                    html, row, !this.$useLineGroups(), row == foldStart ? foldLine : false
-                );
-                lineElement.style.height = config.lineHeight * this.session.getRowLength(row) + "px";
-                lineElement.innerHTML = html.join("");
-            }
-            row++;
-        }
-    };
-
-    this.scrollLines = function(config) {
-        var oldConfig = this.config;
-        this.config = config;
-
-        if (!oldConfig || oldConfig.lastRow < config.firstRow)
-            return this.update(config);
-
-        if (config.lastRow < oldConfig.firstRow)
-            return this.update(config);
-
-        var el = this.element;
-        if (oldConfig.firstRow < config.firstRow)
-            for (var row=this.session.getFoldedRowCount(oldConfig.firstRow, config.firstRow - 1); row>0; row--)
-                el.removeChild(el.firstChild);
-
-        if (oldConfig.lastRow > config.lastRow)
-            for (var row=this.session.getFoldedRowCount(config.lastRow + 1, oldConfig.lastRow); row>0; row--)
-                el.removeChild(el.lastChild);
-
-        if (config.firstRow < oldConfig.firstRow) {
-            var fragment = this.$renderLinesFragment(config, config.firstRow, oldConfig.firstRow - 1);
-            if (el.firstChild)
-                el.insertBefore(fragment, el.firstChild);
-            else
-                el.appendChild(fragment);
-        }
-
-        if (config.lastRow > oldConfig.lastRow) {
-            var fragment = this.$renderLinesFragment(config, oldConfig.lastRow + 1, config.lastRow);
-            el.appendChild(fragment);
-        }
-    };
-
-    this.$renderLinesFragment = function(config, firstRow, lastRow) {
-        var fragment = this.element.ownerDocument.createDocumentFragment();
-        var row = firstRow;
-        var foldLine = this.session.getNextFoldLine(row);
-        var foldStart = foldLine ? foldLine.start.row : Infinity;
-
-        while (true) {
-            if (row > foldStart) {
-                row = foldLine.end.row+1;
-                foldLine = this.session.getNextFoldLine(row, foldLine);
-                foldStart = foldLine ? foldLine.start.row : Infinity;
-            }
-            if (row > lastRow)
-                break;
-
-            var container = dom.createElement("div");
-
-            var html = [];
-            this.$renderLine(html, row, false, row == foldStart ? foldLine : false);
-            container.innerHTML = html.join("");
-            if (this.$useLineGroups()) {
-                container.className = 'ace_line_group';
-                fragment.appendChild(container);
-                container.style.height = config.lineHeight * this.session.getRowLength(row) + "px";
-
-            } else {
-                while(container.firstChild)
-                    fragment.appendChild(container.firstChild);
-            }
-
-            row++;
-        }
-        return fragment;
-    };
-
-    this.update = function(config) {
-        this.config = config;
-
-        var html = [];
-        var firstRow = config.firstRow, lastRow = config.lastRow;
-
-        var row = firstRow;
-        var foldLine = this.session.getNextFoldLine(row);
-        var foldStart = foldLine ? foldLine.start.row : Infinity;
-
-        while (true) {
-            if (row > foldStart) {
-                row = foldLine.end.row+1;
-                foldLine = this.session.getNextFoldLine(row, foldLine);
-                foldStart = foldLine ? foldLine.start.row :Infinity;
-            }
-            if (row > lastRow)
-                break;
-
-            if (this.$useLineGroups())
-                html.push("<div class='ace_line_group' style='height:", config.lineHeight*this.session.getRowLength(row), "px'>")
-
-            this.$renderLine(html, row, false, row == foldStart ? foldLine : false);
-
-            if (this.$useLineGroups())
-                html.push("</div>"); // end the line group
-
-            row++;
-        }
-        this.element.innerHTML = html.join("");
-    };
-
-    this.$textToken = {
-        "text": true,
-        "rparen": true,
-        "lparen": true
-    };
-
-    this.$renderToken = function(stringBuilder, screenColumn, token, value) {
-        var self = this;
-        var replaceReg = /\t|&|<|>|( +)|([\x00-\x1f\x80-\xa0\xad\u1680\u180E\u2000-\u200f\u2028\u2029\u202F\u205F\u3000\uFEFF\uFFF9-\uFFFC])|[\u1100-\u115F\u11A3-\u11A7\u11FA-\u11FF\u2329-\u232A\u2E80-\u2E99\u2E9B-\u2EF3\u2F00-\u2FD5\u2FF0-\u2FFB\u3000-\u303E\u3041-\u3096\u3099-\u30FF\u3105-\u312D\u3131-\u318E\u3190-\u31BA\u31C0-\u31E3\u31F0-\u321E\u3220-\u3247\u3250-\u32FE\u3300-\u4DBF\u4E00-\uA48C\uA490-\uA4C6\uA960-\uA97C\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFAFF\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE66\uFE68-\uFE6B\uFF01-\uFF60\uFFE0-\uFFE6]/g;
-        var replaceFunc = function(c, a, b, tabIdx, idx4) {
-            if (a) {
-                return self.showInvisibles
-                    ? "<span class='ace_invisible ace_invisible_space'>" + lang.stringRepeat(self.SPACE_CHAR, c.length) + "</span>"
-                    : c;
-            } else if (c == "&") {
-                return "&#38;";
-            } else if (c == "<") {
-                return "&#60;";
-            } else if (c == ">") {
-                return "&#62;";
-            } else if (c == "\t") {
-                var tabSize = self.session.getScreenTabSize(screenColumn + tabIdx);
-                screenColumn += tabSize - 1;
-                return self.$tabStrings[tabSize];
-            } else if (c == "\u3000") {
-                var classToUse = self.showInvisibles ? "ace_cjk ace_invisible ace_invisible_space" : "ace_cjk";
-                var space = self.showInvisibles ? self.SPACE_CHAR : "";
-                screenColumn += 1;
-                return "<span class='" + classToUse + "' style='width:" +
-                    (self.config.characterWidth * 2) +
-                    "px'>" + space + "</span>";
-            } else if (b) {
-                return "<span class='ace_invisible ace_invisible_space ace_invalid'>" + self.SPACE_CHAR + "</span>";
-            } else {
-                screenColumn += 1;
-                return "<span class='ace_cjk' style='width:" +
-                    (self.config.characterWidth * 2) +
-                    "px'>" + c + "</span>";
-            }
-        };
-
-        var output = value.replace(replaceReg, replaceFunc);
-
-        if (!this.$textToken[token.type]) {
-            var classes = "ace_" + token.type.replace(/\./g, " ace_");
-            var style = "";
-            if (token.type == "fold")
-                style = " style='width:" + (token.value.length * this.config.characterWidth) + "px;' ";
-            stringBuilder.push("<span class='", classes, "'", style, ">", output, "</span>");
-        }
-        else {
-            stringBuilder.push(output);
-        }
-        return screenColumn + value.length;
-    };
-
-    this.renderIndentGuide = function(stringBuilder, value, max) {
-        var cols = value.search(this.$indentGuideRe);
-        if (cols <= 0 || cols >= max)
-            return value;
-        if (value[0] == " ") {
-            cols -= cols % this.tabSize;
-            stringBuilder.push(lang.stringRepeat(this.$tabStrings[" "], cols/this.tabSize));
-            return value.substr(cols);
-        } else if (value[0] == "\t") {
-            stringBuilder.push(lang.stringRepeat(this.$tabStrings["\t"], cols));
-            return value.substr(cols);
-        }
-        return value;
-    };
-
-    this.$renderWrappedLine = function(stringBuilder, tokens, splits, onlyContents) {
-        var chars = 0;
-        var split = 0;
-        var splitChars = splits[0];
-        var screenColumn = 0;
-
-        for (var i = 0; i < tokens.length; i++) {
-            var token = tokens[i];
-            var value = token.value;
-            if (i == 0 && this.displayIndentGuides) {
-                chars = value.length;
-                value = this.renderIndentGuide(stringBuilder, value, splitChars);
-                if (!value)
-                    continue;
-                chars -= value.length;
-            }
-
-            if (chars + value.length < splitChars) {
-                screenColumn = this.$renderToken(stringBuilder, screenColumn, token, value);
-                chars += value.length;
-            } else {
-                while (chars + value.length >= splitChars) {
-                    screenColumn = this.$renderToken(
-                        stringBuilder, screenColumn,
-                        token, value.substring(0, splitChars - chars)
-                    );
-                    value = value.substring(splitChars - chars);
-                    chars = splitChars;
-
-                    if (!onlyContents) {
-                        stringBuilder.push("</div>",
-                            "<div class='ace_line' style='height:",
-                            this.config.lineHeight, "px'>"
-                        );
-                    }
-
-                    stringBuilder.push(lang.stringRepeat("\xa0", splits.indent));
-
-                    split ++;
-                    screenColumn = 0;
-                    splitChars = splits[split] || Number.MAX_VALUE;
-                }
-                if (value.length != 0) {
-                    chars += value.length;
-                    screenColumn = this.$renderToken(
-                        stringBuilder, screenColumn, token, value
-                    );
-                }
-            }
-        }
-    };
-
-    this.$renderSimpleLine = function(stringBuilder, tokens) {
-        var screenColumn = 0;
-        var token = tokens[0];
-        var value = token.value;
-        if (this.displayIndentGuides)
-            value = this.renderIndentGuide(stringBuilder, value);
-        if (value)
-            screenColumn = this.$renderToken(stringBuilder, screenColumn, token, value);
-        for (var i = 1; i < tokens.length; i++) {
-            token = tokens[i];
-            value = token.value;
-            screenColumn = this.$renderToken(stringBuilder, screenColumn, token, value);
-        }
-    };
-    this.$renderLine = function(stringBuilder, row, onlyContents, foldLine) {
-        if (!foldLine && foldLine != false)
-            foldLine = this.session.getFoldLine(row);
-
-        if (foldLine)
-            var tokens = this.$getFoldLineTokens(row, foldLine);
-        else
-            var tokens = this.session.getTokens(row);
-
-
-        if (!onlyContents) {
-            stringBuilder.push(
-                "<div class='ace_line' style='height:",
-                    this.config.lineHeight * (
-                        this.$useLineGroups() ? 1 :this.session.getRowLength(row)
-                    ), "px'>"
-            );
-        }
-
-        if (tokens.length) {
-            var splits = this.session.getRowSplitData(row);
-            if (splits && splits.length)
-                this.$renderWrappedLine(stringBuilder, tokens, splits, onlyContents);
-            else
-                this.$renderSimpleLine(stringBuilder, tokens);
-        }
-
-        if (this.showInvisibles) {
-            if (foldLine)
-                row = foldLine.end.row
-
-            stringBuilder.push(
-                "<span class='ace_invisible ace_invisible_eol'>",
-                row == this.session.getLength() - 1 ? this.EOF_CHAR : this.EOL_CHAR,
-                "</span>"
-            );
-        }
-        if (!onlyContents)
-            stringBuilder.push("</div>");
-    };
-
-    this.$getFoldLineTokens = function(row, foldLine) {
-        var session = this.session;
-        var renderTokens = [];
-
-        function addTokens(tokens, from, to) {
-            var idx = 0, col = 0;
-            while ((col + tokens[idx].value.length) < from) {
-                col += tokens[idx].value.length;
-                idx++;
-
-                if (idx == tokens.length)
-                    return;
-            }
-            if (col != from) {
-                var value = tokens[idx].value.substring(from - col);
-                if (value.length > (to - from))
-                    value = value.substring(0, to - from);
-
-                renderTokens.push({
-                    type: tokens[idx].type,
-                    value: value
-                });
-
-                col = from + value.length;
-                idx += 1;
-            }
-
-            while (col < to && idx < tokens.length) {
-                var value = tokens[idx].value;
-                if (value.length + col > to) {
-                    renderTokens.push({
-                        type: tokens[idx].type,
-                        value: value.substring(0, to - col)
-                    });
-                } else
-                    renderTokens.push(tokens[idx]);
-                col += value.length;
-                idx += 1;
-            }
-        }
-
-        var tokens = session.getTokens(row);
-        foldLine.walk(function(placeholder, row, column, lastColumn, isNewRow) {
-            if (placeholder != null) {
-                renderTokens.push({
-                    type: "fold",
-                    value: placeholder
-                });
-            } else {
-                if (isNewRow)
-                    tokens = session.getTokens(row);
-
-                if (tokens.length)
-                    addTokens(tokens, lastColumn, column);
-            }
-        }, foldLine.end.row, this.session.getLine(foldLine.end.row).length);
-
-        return renderTokens;
-    };
-
-    this.$useLineGroups = function() {
-        return this.session.getUseWrapMode();
-    };
-
-    this.destroy = function() {
-        clearInterval(this.$pollSizeChangesTimer);
-        if (this.$measureNode)
-            this.$measureNode.parentNode.removeChild(this.$measureNode);
-        delete this.$measureNode;
-    };
-
-}).call(Text.prototype);
-
-exports.Text = Text;
-
-});
-
-ace.define("ace/layer/cursor",["require","exports","module","ace/lib/dom"], function(require, exports, module) {
-"use strict";
-
-var dom = require("../lib/dom");
-var isIE8;
-
-var Cursor = function(parentEl) {
-    this.element = dom.createElement("div");
-    this.element.className = "ace_layer ace_cursor-layer";
-    parentEl.appendChild(this.element);
-
-    if (isIE8 === undefined)
-        isIE8 = !("opacity" in this.element.style);
-
-    this.isVisible = false;
-    this.isBlinking = true;
-    this.blinkInterval = 1000;
-    this.smoothBlinking = false;
-
-    this.cursors = [];
-    this.cursor = this.addCursor();
-    dom.addCssClass(this.element, "ace_hidden-cursors");
-    this.$updateCursors = (isIE8
-        ? this.$updateVisibility
-        : this.$updateOpacity).bind(this);
-};
-
-(function() {
-
-    this.$updateVisibility = function(val) {
-        var cursors = this.cursors;
-        for (var i = cursors.length; i--; )
-            cursors[i].style.visibility = val ? "" : "hidden";
-    };
-    this.$updateOpacity = function(val) {
-        var cursors = this.cursors;
-        for (var i = cursors.length; i--; )
-            cursors[i].style.opacity = val ? "" : "0";
-    };
-
-
-    this.$padding = 0;
-    this.setPadding = function(padding) {
-        this.$padding = padding;
-    };
-
-    this.setSession = function(session) {
-        this.session = session;
-    };
-
-    this.setBlinking = function(blinking) {
-        if (blinking != this.isBlinking){
-            this.isBlinking = blinking;
-            this.restartTimer();
-        }
-    };
-
-    this.setBlinkInterval = function(blinkInterval) {
-        if (blinkInterval != this.blinkInterval){
-            this.blinkInterval = blinkInterval;
-            this.restartTimer();
-        }
-    };
-
-    this.setSmoothBlinking = function(smoothBlinking) {
-        if (smoothBlinking != this.smoothBlinking && !isIE8) {
-            this.smoothBlinking = smoothBlinking;
-            dom.setCssClass(this.element, "ace_smooth-blinking", smoothBlinking);
-            this.$updateCursors(true);
-            this.$updateCursors = (this.$updateOpacity).bind(this);
-            this.restartTimer();
-        }
-    };
-
-    this.addCursor = function() {
-        var el = dom.createElement("div");
-        el.className = "ace_cursor";
-        this.element.appendChild(el);
-        this.cursors.push(el);
-        return el;
-    };
-
-    this.removeCursor = function() {
-        if (this.cursors.length > 1) {
-            var el = this.cursors.pop();
-            el.parentNode.removeChild(el);
-            return el;
-        }
-    };
-
-    this.hideCursor = function() {
-        this.isVisible = false;
-        dom.addCssClass(this.element, "ace_hidden-cursors");
-        this.restartTimer();
-    };
-
-    this.showCursor = function() {
-        this.isVisible = true;
-        dom.removeCssClass(this.element, "ace_hidden-cursors");
-        this.restartTimer();
-    };
-
-    this.restartTimer = function() {
-        var update = this.$updateCursors;
-        clearInterval(this.intervalId);
-        clearTimeout(this.timeoutId);
-        if (this.smoothBlinking) {
-            dom.removeCssClass(this.element, "ace_smooth-blinking");
-        }
-
-        update(true);
-
-        if (!this.isBlinking || !this.blinkInterval || !this.isVisible)
-            return;
-
-        if (this.smoothBlinking) {
-            setTimeout(function(){
-                dom.addCssClass(this.element, "ace_smooth-blinking");
-            }.bind(this));
-        }
-
-        var blink = function(){
-            this.timeoutId = setTimeout(function() {
-                update(false);
-            }, 0.6 * this.blinkInterval);
-        }.bind(this);
-
-        this.intervalId = setInterval(function() {
-            update(true);
-            blink();
-        }, this.blinkInterval);
-
-        blink();
-    };
-
-    this.getPixelPosition = function(position, onScreen) {
-        if (!this.config || !this.session)
-            return {left : 0, top : 0};
-
-        if (!position)
-            position = this.session.selection.getCursor();
-        var pos = this.session.documentToScreenPosition(position);
-        var cursorLeft = this.$padding + pos.column * this.config.characterWidth;
-        var cursorTop = (pos.row - (onScreen ? this.config.firstRowScreen : 0)) *
-            this.config.lineHeight;
-
-        return {left : cursorLeft, top : cursorTop};
-    };
-
-    this.update = function(config) {
-        this.config = config;
-
-        var selections = this.session.$selectionMarkers;
-        var i = 0, cursorIndex = 0;
-
-        if (selections === undefined || selections.length === 0){
-            selections = [{cursor: null}];
-        }
-
-        for (var i = 0, n = selections.length; i < n; i++) {
-            var pixelPos = this.getPixelPosition(selections[i].cursor, true);
-            if ((pixelPos.top > config.height + config.offset ||
-                 pixelPos.top < 0) && i > 1) {
-                continue;
-            }
-
-            var style = (this.cursors[cursorIndex++] || this.addCursor()).style;
-
-            if (!this.drawCursor) {
-                style.left = pixelPos.left + "px";
-                style.top = pixelPos.top + "px";
-                style.width = config.characterWidth + "px";
-                style.height = config.lineHeight + "px";
-            } else {
-                this.drawCursor(style, pixelPos, config, selections[i], this.session);
-            }
-        }
-        while (this.cursors.length > cursorIndex)
-            this.removeCursor();
-
-        var overwrite = this.session.getOverwrite();
-        this.$setOverwrite(overwrite);
-        this.$pixelPos = pixelPos;
-        this.restartTimer();
-    };
-
-    this.drawCursor = null;
-
-    this.$setOverwrite = function(overwrite) {
-        if (overwrite != this.overwrite) {
-            this.overwrite = overwrite;
-            if (overwrite)
-                dom.addCssClass(this.element, "ace_overwrite-cursors");
-            else
-                dom.removeCssClass(this.element, "ace_overwrite-cursors");
-        }
-    };
-
-    this.destroy = function() {
-        clearInterval(this.intervalId);
-        clearTimeout(this.timeoutId);
-    };
-
-}).call(Cursor.prototype);
-
-exports.Cursor = Cursor;
-
-});
-
-ace.define("ace/scrollbar",["require","exports","module","ace/lib/oop","ace/lib/dom","ace/lib/event","ace/lib/event_emitter"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var dom = require("./lib/dom");
-var event = require("./lib/event");
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-var ScrollBar = function(parent) {
-    this.element = dom.createElement("div");
-    this.element.className = "ace_scrollbar ace_scrollbar" + this.classSuffix;
-
-    this.inner = dom.createElement("div");
-    this.inner.className = "ace_scrollbar-inner";
-    this.element.appendChild(this.inner);
-
-    parent.appendChild(this.element);
-
-    this.setVisible(false);
-    this.skipEvent = false;
-
-    event.addListener(this.element, "scroll", this.onScroll.bind(this));
-    event.addListener(this.element, "mousedown", event.preventDefault);
-};
-
-(function() {
-    oop.implement(this, EventEmitter);
-
-    this.setVisible = function(isVisible) {
-        this.element.style.display = isVisible ? "" : "none";
-        this.isVisible = isVisible;
-    };
-}).call(ScrollBar.prototype);
-var VScrollBar = function(parent, renderer) {
-    ScrollBar.call(this, parent);
-    this.scrollTop = 0;
-    renderer.$scrollbarWidth =
-    this.width = dom.scrollbarWidth(parent.ownerDocument);
-    this.inner.style.width =
-    this.element.style.width = (this.width || 15) + 5 + "px";
-};
-
-oop.inherits(VScrollBar, ScrollBar);
-
-(function() {
-
-    this.classSuffix = '-v';
-    this.onScroll = function() {
-        if (!this.skipEvent) {
-            this.scrollTop = this.element.scrollTop;
-            this._emit("scroll", {data: this.scrollTop});
-        }
-        this.skipEvent = false;
-    };
-    this.getWidth = function() {
-        return this.isVisible ? this.width : 0;
-    };
-    this.setHeight = function(height) {
-        this.element.style.height = height + "px";
-    };
-    this.setInnerHeight = function(height) {
-        this.inner.style.height = height + "px";
-    };
-    this.setScrollHeight = function(height) {
-        this.inner.style.height = height + "px";
-    };
-    this.setScrollTop = function(scrollTop) {
-        if (this.scrollTop != scrollTop) {
-            this.skipEvent = true;
-            this.scrollTop = this.element.scrollTop = scrollTop;
-        }
-    };
-
-}).call(VScrollBar.prototype);
-var HScrollBar = function(parent, renderer) {
-    ScrollBar.call(this, parent);
-    this.scrollLeft = 0;
-    this.height = renderer.$scrollbarWidth;
-    this.inner.style.height =
-    this.element.style.height = (this.height || 15) + 5 + "px";
-};
-
-oop.inherits(HScrollBar, ScrollBar);
-
-(function() {
-
-    this.classSuffix = '-h';
-    this.onScroll = function() {
-        if (!this.skipEvent) {
-            this.scrollLeft = this.element.scrollLeft;
-            this._emit("scroll", {data: this.scrollLeft});
-        }
-        this.skipEvent = false;
-    };
-    this.getHeight = function() {
-        return this.isVisible ? this.height : 0;
-    };
-    this.setWidth = function(width) {
-        this.element.style.width = width + "px";
-    };
-    this.setInnerWidth = function(width) {
-        this.inner.style.width = width + "px";
-    };
-    this.setScrollWidth = function(width) {
-        this.inner.style.width = width + "px";
-    };
-    this.setScrollLeft = function(scrollLeft) {
-        if (this.scrollLeft != scrollLeft) {
-            this.skipEvent = true;
-            this.scrollLeft = this.element.scrollLeft = scrollLeft;
-        }
-    };
-
-}).call(HScrollBar.prototype);
-
-
-exports.ScrollBar = VScrollBar; // backward compatibility
-exports.ScrollBarV = VScrollBar; // backward compatibility
-exports.ScrollBarH = HScrollBar; // backward compatibility
-
-exports.VScrollBar = VScrollBar;
-exports.HScrollBar = HScrollBar;
-});
-
-ace.define("ace/renderloop",["require","exports","module","ace/lib/event"], function(require, exports, module) {
-"use strict";
-
-var event = require("./lib/event");
-
-
-var RenderLoop = function(onRender, win) {
-    this.onRender = onRender;
-    this.pending = false;
-    this.changes = 0;
-    this.window = win || window;
-};
-
-(function() {
-
-
-    this.schedule = function(change) {
-        this.changes = this.changes | change;
-        if (!this.pending && this.changes) {
-            this.pending = true;
-            var _self = this;
-            event.nextFrame(function() {
-                _self.pending = false;
-                var changes;
-                while (changes = _self.changes) {
-                    _self.changes = 0;
-                    _self.onRender(changes);
-                }
-            }, this.window);
-        }
-    };
-
-}).call(RenderLoop.prototype);
-
-exports.RenderLoop = RenderLoop;
-});
-
-ace.define("ace/layer/font_metrics",["require","exports","module","ace/lib/oop","ace/lib/dom","ace/lib/lang","ace/lib/useragent","ace/lib/event_emitter"], function(require, exports, module) {
-
-var oop = require("../lib/oop");
-var dom = require("../lib/dom");
-var lang = require("../lib/lang");
-var useragent = require("../lib/useragent");
-var EventEmitter = require("../lib/event_emitter").EventEmitter;
-
-var CHAR_COUNT = 0;
-
-var FontMetrics = exports.FontMetrics = function(parentEl) {
-    this.el = dom.createElement("div");
-    this.$setMeasureNodeStyles(this.el.style, true);
-
-    this.$main = dom.createElement("div");
-    this.$setMeasureNodeStyles(this.$main.style);
-
-    this.$measureNode = dom.createElement("div");
-    this.$setMeasureNodeStyles(this.$measureNode.style);
-
-
-    this.el.appendChild(this.$main);
-    this.el.appendChild(this.$measureNode);
-    parentEl.appendChild(this.el);
-
-    if (!CHAR_COUNT)
-        this.$testFractionalRect();
-    this.$measureNode.innerHTML = lang.stringRepeat("X", CHAR_COUNT);
-
-    this.$characterSize = {width: 0, height: 0};
-    this.checkForSizeChanges();
-};
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-
-    this.$characterSize = {width: 0, height: 0};
-
-    this.$testFractionalRect = function() {
-        var el = dom.createElement("div");
-        this.$setMeasureNodeStyles(el.style);
-        el.style.width = "0.2px";
-        document.documentElement.appendChild(el);
-        var w = el.getBoundingClientRect().width;
-        if (w > 0 && w < 1)
-            CHAR_COUNT = 50;
-        else
-            CHAR_COUNT = 100;
-        el.parentNode.removeChild(el);
-    };
-
-    this.$setMeasureNodeStyles = function(style, isRoot) {
-        style.width = style.height = "auto";
-        style.left = style.top = "0px";
-        style.visibility = "hidden";
-        style.position = "absolute";
-        style.whiteSpace = "pre";
-
-        if (useragent.isIE < 8) {
-            style["font-family"] = "inherit";
-        } else {
-            style.font = "inherit";
-        }
-        style.overflow = isRoot ? "hidden" : "visible";
-    };
-
-    this.checkForSizeChanges = function() {
-        var size = this.$measureSizes();
-        if (size && (this.$characterSize.width !== size.width || this.$characterSize.height !== size.height)) {
-            this.$measureNode.style.fontWeight = "bold";
-            var boldSize = this.$measureSizes();
-            this.$measureNode.style.fontWeight = "";
-            this.$characterSize = size;
-            this.charSizes = Object.create(null);
-            this.allowBoldFonts = boldSize && boldSize.width === size.width && boldSize.height === size.height;
-            this._emit("changeCharacterSize", {data: size});
-        }
-    };
-
-    this.$pollSizeChanges = function() {
-        if (this.$pollSizeChangesTimer)
-            return this.$pollSizeChangesTimer;
-        var self = this;
-        return this.$pollSizeChangesTimer = setInterval(function() {
-            self.checkForSizeChanges();
-        }, 500);
-    };
-
-    this.setPolling = function(val) {
-        if (val) {
-            this.$pollSizeChanges();
-        } else if (this.$pollSizeChangesTimer) {
-            clearInterval(this.$pollSizeChangesTimer);
-            this.$pollSizeChangesTimer = 0;
-        }
-    };
-
-    this.$measureSizes = function() {
-        if (CHAR_COUNT === 50) {
-            var rect = null;
-            try {
-               rect = this.$measureNode.getBoundingClientRect();
-            } catch(e) {
-               rect = {width: 0, height:0 };
-            }
-            var size = {
-                height: rect.height,
-                width: rect.width / CHAR_COUNT
-            };
-        } else {
-            var size = {
-                height: this.$measureNode.clientHeight,
-                width: this.$measureNode.clientWidth / CHAR_COUNT
-            };
-        }
-        if (size.width === 0 || size.height === 0)
-            return null;
-        return size;
-    };
-
-    this.$measureCharWidth = function(ch) {
-        this.$main.innerHTML = lang.stringRepeat(ch, CHAR_COUNT);
-        var rect = this.$main.getBoundingClientRect();
-        return rect.width / CHAR_COUNT;
-    };
-
-    this.getCharacterWidth = function(ch) {
-        var w = this.charSizes[ch];
-        if (w === undefined) {
-            w = this.charSizes[ch] = this.$measureCharWidth(ch) / this.$characterSize.width;
-        }
-        return w;
-    };
-
-    this.destroy = function() {
-        clearInterval(this.$pollSizeChangesTimer);
-        if (this.el && this.el.parentNode)
-            this.el.parentNode.removeChild(this.el);
-    };
-
-}).call(FontMetrics.prototype);
-
-});
-
-ace.define("ace/virtual_renderer",["require","exports","module","ace/lib/oop","ace/lib/dom","ace/config","ace/lib/useragent","ace/layer/gutter","ace/layer/marker","ace/layer/text","ace/layer/cursor","ace/scrollbar","ace/scrollbar","ace/renderloop","ace/layer/font_metrics","ace/lib/event_emitter"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var dom = require("./lib/dom");
-var config = require("./config");
-var useragent = require("./lib/useragent");
-var GutterLayer = require("./layer/gutter").Gutter;
-var MarkerLayer = require("./layer/marker").Marker;
-var TextLayer = require("./layer/text").Text;
-var CursorLayer = require("./layer/cursor").Cursor;
-var HScrollBar = require("./scrollbar").HScrollBar;
-var VScrollBar = require("./scrollbar").VScrollBar;
-var RenderLoop = require("./renderloop").RenderLoop;
-var FontMetrics = require("./layer/font_metrics").FontMetrics;
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-var editorCss = ".ace_editor {\
-position: relative !important;\
-overflow: hidden;\
-font: 12px/normal 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', 'source-code-pro', monospace;\
-direction: ltr;\
-}\
-.ace_scroller {\
-position: absolute !important;\
-overflow: hidden;\
-top: 0;\
-bottom: 0;\
-background-color: inherit;\
--ms-user-select: none;\
--moz-user-select: none;\
--webkit-user-select: none;\
-user-select: none;\
-cursor: text;\
-}\
-.ace_content {\
-position: absolute !important;\
--moz-box-sizing: border-box;\
--webkit-box-sizing: border-box;\
-box-sizing: border-box;\
-min-width: 100%;\
-}\
-.ace_dragging .ace_scroller:before{\
-position: absolute !important;\
-top: 0;\
-left: 0;\
-right: 0;\
-bottom: 0;\
-content: '';\
-background: rgba(250, 250, 250, 0.01);\
-z-index: 1000;\
-}\
-.ace_dragging.ace_dark .ace_scroller:before{\
-background: rgba(0, 0, 0, 0.01);\
-}\
-.ace_selecting, .ace_selecting * {\
-cursor: text !important;\
-}\
-.ace_gutter {\
-position: absolute !important;\
-overflow : hidden;\
-width: auto;\
-top: 0;\
-bottom: 0;\
-left: 0;\
-cursor: default;\
-z-index: 4;\
--ms-user-select: none;\
--moz-user-select: none;\
--webkit-user-select: none;\
-user-select: none;\
-}\
-.ace_gutter-active-line {\
-position: absolute !important;\
-left: 0;\
-right: 0;\
-}\
-.ace_scroller.ace_scroll-left {\
-box-shadow: 17px 0 16px -16px rgba(0, 0, 0, 0.4) inset;\
-}\
-.ace_gutter-cell {\
-padding-left: 19px;\
-padding-right: 6px;\
-background-repeat: no-repeat;\
-}\
-.ace_gutter-cell.ace_error {\
-background-image: url(\"data:image/png;base64,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\");\
-background-repeat: no-repeat;\
-background-position: 2px center;\
-}\
-.ace_gutter-cell.ace_warning {\
-background-image: url(\"data:image/png;base64,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\");\
-background-position: 2px center;\
-}\
-.ace_gutter-cell.ace_info {\
-background-image: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAAAAAA6mKC9AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAAJ0Uk5TAAB2k804AAAAPklEQVQY02NgIB68QuO3tiLznjAwpKTgNyDbMegwisCHZUETUZV0ZqOquBpXj2rtnpSJT1AEnnRmL2OgGgAAIKkRQap2htgAAAAASUVORK5CYII=\");\
-background-position: 2px center;\
-}\
-.ace_dark .ace_gutter-cell.ace_info {\
-background-image: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQBAMAAADt3eJSAAAAJFBMVEUAAAChoaGAgIAqKiq+vr6tra1ZWVmUlJSbm5s8PDxubm56enrdgzg3AAAAAXRSTlMAQObYZgAAAClJREFUeNpjYMAPdsMYHegyJZFQBlsUlMFVCWUYKkAZMxZAGdxlDMQBAG+TBP4B6RyJAAAAAElFTkSuQmCC\");\
-}\
-.ace_scrollbar {\
-position: absolute !important;\
-right: 0;\
-bottom: 0;\
-z-index: 6;\
-}\
-.ace_scrollbar-inner {\
-position: absolute !important;\
-cursor: text;\
-left: 0;\
-top: 0;\
-}\
-.ace_scrollbar-v{\
-overflow-x: hidden;\
-overflow-y: scroll;\
-top: 0;\
-}\
-.ace_scrollbar-h {\
-overflow-x: scroll;\
-overflow-y: hidden;\
-left: 0;\
-}\
-.ace_print-margin {\
-position: absolute !important;\
-height: 100%;\
-}\
-.ace_text-input {\
-position: absolute !important;\
-z-index: 0;\
-width: 0.5em;\
-height: 1em;\
-opacity: 0;\
-background: transparent;\
--moz-appearance: none;\
-appearance: none;\
-border: none;\
-resize: none;\
-outline: none;\
-overflow: hidden;\
-font: inherit;\
-padding: 0 1px;\
-margin: 0 -1px;\
-text-indent: -1em;\
--ms-user-select: text;\
--moz-user-select: text;\
--webkit-user-select: text;\
-user-select: text;\
-white-space: pre!important;\
-}\
-.ace_text-input.ace_composition {\
-background: inherit;\
-color: inherit;\
-z-index: 1000;\
-opacity: 1;\
-text-indent: 0;\
-}\
-.ace_layer {\
-z-index: 1;\
-position: absolute !important;\
-overflow: hidden;\
-word-wrap: normal;\
-white-space: pre;\
-height: 100%;\
-width: 100%;\
--moz-box-sizing: border-box;\
--webkit-box-sizing: border-box;\
-box-sizing: border-box;\
-pointer-events: none;\
-}\
-.ace_gutter-layer {\
-position: relative !important;\
-width: auto;\
-text-align: right;\
-pointer-events: auto;\
-}\
-.ace_text-layer {\
-font: inherit !important;\
-}\
-.ace_cjk {\
-display: inline-block;\
-text-align: center;\
-}\
-.ace_cursor-layer {\
-z-index: 4;\
-}\
-.ace_cursor {\
-z-index: 4;\
-position: absolute !important;\
--moz-box-sizing: border-box;\
--webkit-box-sizing: border-box;\
-box-sizing: border-box;\
-border-left: 2px solid;\
-transform: translatez(0);\
-}\
-.ace_slim-cursors .ace_cursor {\
-border-left-width: 1px;\
-}\
-.ace_overwrite-cursors .ace_cursor {\
-border-left-width: 0;\
-border-bottom: 1px solid;\
-}\
-.ace_hidden-cursors .ace_cursor {\
-opacity: 0.2;\
-}\
-.ace_smooth-blinking .ace_cursor {\
--webkit-transition: opacity 0.18s;\
-transition: opacity 0.18s;\
-}\
-.ace_editor.ace_multiselect .ace_cursor {\
-border-left-width: 1px;\
-}\
-.ace_marker-layer .ace_step, .ace_marker-layer .ace_stack {\
-position: absolute !important;\
-z-index: 3;\
-}\
-.ace_marker-layer .ace_selection {\
-position: absolute !important;\
-z-index: 5;\
-}\
-.ace_marker-layer .ace_bracket {\
-position: absolute !important;\
-z-index: 6;\
-}\
-.ace_marker-layer .ace_active-line {\
-position: absolute !important;\
-z-index: 2;\
-}\
-.ace_marker-layer .ace_selected-word {\
-position: absolute !important;\
-z-index: 4;\
--moz-box-sizing: border-box;\
--webkit-box-sizing: border-box;\
-box-sizing: border-box;\
-}\
-.ace_line .ace_fold {\
--moz-box-sizing: border-box;\
--webkit-box-sizing: border-box;\
-box-sizing: border-box;\
-display: inline-block;\
-height: 11px;\
-margin-top: -2px;\
-vertical-align: middle;\
-background-image:\
-url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAJCAYAAADU6McMAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAJpJREFUeNpi/P//PwOlgAXGYGRklAVSokD8GmjwY1wasKljQpYACtpCFeADcHVQfQyMQAwzwAZI3wJKvCLkfKBaMSClBlR7BOQikCFGQEErIH0VqkabiGCAqwUadAzZJRxQr/0gwiXIal8zQQPnNVTgJ1TdawL0T5gBIP1MUJNhBv2HKoQHHjqNrA4WO4zY0glyNKLT2KIfIMAAQsdgGiXvgnYAAAAASUVORK5CYII=\"),\
-url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAA3CAYAAADNNiA5AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAACJJREFUeNpi+P//fxgTAwPDBxDxD078RSX+YeEyDFMCIMAAI3INmXiwf2YAAAAASUVORK5CYII=\");\
-background-repeat: no-repeat, repeat-x;\
-background-position: center center, top left;\
-color: transparent;\
-border: 1px solid black;\
-border-radius: 2px;\
-cursor: pointer;\
-pointer-events: auto;\
-}\
-.ace_dark .ace_fold {\
-}\
-.ace_fold:hover{\
-background-image:\
-url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAJCAYAAADU6McMAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAJpJREFUeNpi/P//PwOlgAXGYGRklAVSokD8GmjwY1wasKljQpYACtpCFeADcHVQfQyMQAwzwAZI3wJKvCLkfKBaMSClBlR7BOQikCFGQEErIH0VqkabiGCAqwUadAzZJRxQr/0gwiXIal8zQQPnNVTgJ1TdawL0T5gBIP1MUJNhBv2HKoQHHjqNrA4WO4zY0glyNKLT2KIfIMAAQsdgGiXvgnYAAAAASUVORK5CYII=\"),\
-url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAA3CAYAAADNNiA5AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAACBJREFUeNpi+P//fz4TAwPDZxDxD5X4i5fLMEwJgAADAEPVDbjNw87ZAAAAAElFTkSuQmCC\");\
-}\
-.ace_tooltip {\
-background-color: #FFF;\
-background-image: -webkit-linear-gradient(top, transparent, rgba(0, 0, 0, 0.1));\
-background-image: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.1));\
-border: 1px solid gray;\
-border-radius: 1px;\
-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);\
-color: black;\
-max-width: 100%;\
-padding: 3px 4px;\
-position: fixed !important;\
-z-index: 999999;\
--moz-box-sizing: border-box;\
--webkit-box-sizing: border-box;\
-box-sizing: border-box;\
-cursor: default;\
-white-space: pre;\
-word-wrap: break-word;\
-line-height: normal;\
-font-style: normal;\
-font-weight: normal;\
-letter-spacing: normal;\
-pointer-events: none;\
-}\
-.ace_folding-enabled > .ace_gutter-cell {\
-padding-right: 13px;\
-}\
-.ace_fold-widget {\
--moz-box-sizing: border-box;\
--webkit-box-sizing: border-box;\
-box-sizing: border-box;\
-margin: 0 -12px 0 1px;\
-display: none;\
-width: 11px;\
-vertical-align: top;\
-background-image: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAANElEQVR42mWKsQ0AMAzC8ixLlrzQjzmBiEjp0A6WwBCSPgKAXoLkqSot7nN3yMwR7pZ32NzpKkVoDBUxKAAAAABJRU5ErkJggg==\");\
-background-repeat: no-repeat;\
-background-position: center;\
-border-radius: 3px;\
-border: 1px solid transparent;\
-cursor: pointer;\
-}\
-.ace_folding-enabled .ace_fold-widget {\
-display: inline-block;   \
-}\
-.ace_fold-widget.ace_end {\
-background-image: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAANElEQVR42m3HwQkAMAhD0YzsRchFKI7sAikeWkrxwScEB0nh5e7KTPWimZki4tYfVbX+MNl4pyZXejUO1QAAAABJRU5ErkJggg==\");\
-}\
-.ace_fold-widget.ace_closed {\
-background-image: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAAGCAYAAAAG5SQMAAAAOUlEQVR42jXKwQkAMAgDwKwqKD4EwQ26sSOkVWjgIIHAzPiCgaqiqnJHZnKICBERHN194O5b9vbLuAVRL+l0YWnZAAAAAElFTkSuQmCCXA==\");\
-}\
-.ace_fold-widget:hover {\
-border: 1px solid rgba(0, 0, 0, 0.3);\
-background-color: rgba(255, 255, 255, 0.2);\
-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.7);\
-}\
-.ace_fold-widget:active {\
-border: 1px solid rgba(0, 0, 0, 0.4);\
-background-color: rgba(0, 0, 0, 0.05);\
-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);\
-}\
-.ace_dark .ace_fold-widget {\
-background-image: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHklEQVQIW2P4//8/AzoGEQ7oGCaLLAhWiSwB146BAQCSTPYocqT0AAAAAElFTkSuQmCC\");\
-}\
-.ace_dark .ace_fold-widget.ace_end {\
-background-image: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAH0lEQVQIW2P4//8/AxQ7wNjIAjDMgC4AxjCVKBirIAAF0kz2rlhxpAAAAABJRU5ErkJggg==\");\
-}\
-.ace_dark .ace_fold-widget.ace_closed {\
-background-image: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAAFCAYAAACAcVaiAAAAHElEQVQIW2P4//+/AxAzgDADlOOAznHAKgPWAwARji8UIDTfQQAAAABJRU5ErkJggg==\");\
-}\
-.ace_dark .ace_fold-widget:hover {\
-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);\
-background-color: rgba(255, 255, 255, 0.1);\
-}\
-.ace_dark .ace_fold-widget:active {\
-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);\
-}\
-.ace_fold-widget.ace_invalid {\
-background-color: #FFB4B4;\
-border-color: #DE5555;\
-}\
-.ace_fade-fold-widgets .ace_fold-widget {\
--webkit-transition: opacity 0.4s ease 0.05s;\
-transition: opacity 0.4s ease 0.05s;\
-opacity: 0;\
-}\
-.ace_fade-fold-widgets:hover .ace_fold-widget {\
--webkit-transition: opacity 0.05s ease 0.05s;\
-transition: opacity 0.05s ease 0.05s;\
-opacity:1;\
-}\
-.ace_underline {\
-text-decoration: underline;\
-}\
-.ace_bold {\
-font-weight: bold;\
-}\
-.ace_nobold .ace_bold {\
-font-weight: normal;\
-}\
-.ace_italic {\
-font-style: italic;\
-}\
-.ace_error-marker {\
-background-color: rgba(255, 0, 0,0.2);\
-position: absolute !important;\
-z-index: 9;\
-}\
-.ace_highlight-marker {\
-background-color: rgba(255, 255, 0,0.2);\
-position: absolute !important;\
-z-index: 8;\
-}\
-.ace_br1 {border-top-left-radius    : 3px;}\
-.ace_br2 {border-top-right-radius   : 3px;}\
-.ace_br3 {border-top-left-radius    : 3px; border-top-right-radius:    3px;}\
-.ace_br4 {border-bottom-right-radius: 3px;}\
-.ace_br5 {border-top-left-radius    : 3px; border-bottom-right-radius: 3px;}\
-.ace_br6 {border-top-right-radius   : 3px; border-bottom-right-radius: 3px;}\
-.ace_br7 {border-top-left-radius    : 3px; border-top-right-radius:    3px; border-bottom-right-radius: 3px;}\
-.ace_br8 {border-bottom-left-radius : 3px;}\
-.ace_br9 {border-top-left-radius    : 3px; border-bottom-left-radius:  3px;}\
-.ace_br10{border-top-right-radius   : 3px; border-bottom-left-radius:  3px;}\
-.ace_br11{border-top-left-radius    : 3px; border-top-right-radius:    3px; border-bottom-left-radius:  3px;}\
-.ace_br12{border-bottom-right-radius: 3px; border-bottom-left-radius:  3px;}\
-.ace_br13{border-top-left-radius    : 3px; border-bottom-right-radius: 3px; border-bottom-left-radius:  3px;}\
-.ace_br14{border-top-right-radius   : 3px; border-bottom-right-radius: 3px; border-bottom-left-radius:  3px;}\
-.ace_br15{border-top-left-radius    : 3px; border-top-right-radius:    3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px;}\
-";
-
-dom.importCssString(editorCss, "ace_editor.css");
-
-var VirtualRenderer = function(container, theme) {
-    var _self = this;
-
-    this.container = container || dom.createElement("div");
-    this.$keepTextAreaAtCursor = !useragent.isOldIE;
-
-    dom.addCssClass(this.container, "ace_editor");
-
-    this.setTheme(theme);
-
-    this.$gutter = dom.createElement("div");
-    this.$gutter.className = "ace_gutter";
-    this.container.appendChild(this.$gutter);
-
-    this.scroller = dom.createElement("div");
-    this.scroller.className = "ace_scroller";
-    this.container.appendChild(this.scroller);
-
-    this.content = dom.createElement("div");
-    this.content.className = "ace_content";
-    this.scroller.appendChild(this.content);
-
-    this.$gutterLayer = new GutterLayer(this.$gutter);
-    this.$gutterLayer.on("changeGutterWidth", this.onGutterResize.bind(this));
-
-    this.$markerBack = new MarkerLayer(this.content);
-
-    var textLayer = this.$textLayer = new TextLayer(this.content);
-    this.canvas = textLayer.element;
-
-    this.$markerFront = new MarkerLayer(this.content);
-
-    this.$cursorLayer = new CursorLayer(this.content);
-    this.$horizScroll = false;
-    this.$vScroll = false;
-
-    this.scrollBar =
-    this.scrollBarV = new VScrollBar(this.container, this);
-    this.scrollBarH = new HScrollBar(this.container, this);
-    this.scrollBarV.addEventListener("scroll", function(e) {
-        if (!_self.$scrollAnimation)
-            _self.session.setScrollTop(e.data - _self.scrollMargin.top);
-    });
-    this.scrollBarH.addEventListener("scroll", function(e) {
-        if (!_self.$scrollAnimation)
-            _self.session.setScrollLeft(e.data - _self.scrollMargin.left);
-    });
-
-    this.scrollTop = 0;
-    this.scrollLeft = 0;
-
-    this.cursorPos = {
-        row : 0,
-        column : 0
-    };
-
-    this.$fontMetrics = new FontMetrics(this.container);
-    this.$textLayer.$setFontMetrics(this.$fontMetrics);
-    this.$textLayer.addEventListener("changeCharacterSize", function(e) {
-        _self.updateCharacterSize();
-        _self.onResize(true, _self.gutterWidth, _self.$size.width, _self.$size.height);
-        _self._signal("changeCharacterSize", e);
-    });
-
-    this.$size = {
-        width: 0,
-        height: 0,
-        scrollerHeight: 0,
-        scrollerWidth: 0,
-        $dirty: true
-    };
-
-    this.layerConfig = {
-        width : 1,
-        padding : 0,
-        firstRow : 0,
-        firstRowScreen: 0,
-        lastRow : 0,
-        lineHeight : 0,
-        characterWidth : 0,
-        minHeight : 1,
-        maxHeight : 1,
-        offset : 0,
-        height : 1,
-        gutterOffset: 1
-    };
-
-    this.scrollMargin = {
-        left: 0,
-        right: 0,
-        top: 0,
-        bottom: 0,
-        v: 0,
-        h: 0
-    };
-
-    this.$loop = new RenderLoop(
-        this.$renderChanges.bind(this),
-        this.container.ownerDocument.defaultView
-    );
-    this.$loop.schedule(this.CHANGE_FULL);
-
-    this.updateCharacterSize();
-    this.setPadding(4);
-    config.resetOptions(this);
-    config._emit("renderer", this);
-};
-
-(function() {
-
-    this.CHANGE_CURSOR = 1;
-    this.CHANGE_MARKER = 2;
-    this.CHANGE_GUTTER = 4;
-    this.CHANGE_SCROLL = 8;
-    this.CHANGE_LINES = 16;
-    this.CHANGE_TEXT = 32;
-    this.CHANGE_SIZE = 64;
-    this.CHANGE_MARKER_BACK = 128;
-    this.CHANGE_MARKER_FRONT = 256;
-    this.CHANGE_FULL = 512;
-    this.CHANGE_H_SCROLL = 1024;
-
-    oop.implement(this, EventEmitter);
-
-    this.updateCharacterSize = function() {
-        if (this.$textLayer.allowBoldFonts != this.$allowBoldFonts) {
-            this.$allowBoldFonts = this.$textLayer.allowBoldFonts;
-            this.setStyle("ace_nobold", !this.$allowBoldFonts);
-        }
-
-        this.layerConfig.characterWidth =
-        this.characterWidth = this.$textLayer.getCharacterWidth();
-        this.layerConfig.lineHeight =
-        this.lineHeight = this.$textLayer.getLineHeight();
-        this.$updatePrintMargin();
-    };
-    this.setSession = function(session) {
-        if (this.session)
-            this.session.doc.off("changeNewLineMode", this.onChangeNewLineMode);
-
-        this.session = session;
-        if (session && this.scrollMargin.top && session.getScrollTop() <= 0)
-            session.setScrollTop(-this.scrollMargin.top);
-
-        this.$cursorLayer.setSession(session);
-        this.$markerBack.setSession(session);
-        this.$markerFront.setSession(session);
-        this.$gutterLayer.setSession(session);
-        this.$textLayer.setSession(session);
-        if (!session)
-            return;
-
-        this.$loop.schedule(this.CHANGE_FULL);
-        this.session.$setFontMetrics(this.$fontMetrics);
-
-        this.onChangeNewLineMode = this.onChangeNewLineMode.bind(this);
-        this.onChangeNewLineMode()
-        this.session.doc.on("changeNewLineMode", this.onChangeNewLineMode);
-    };
-    this.updateLines = function(firstRow, lastRow, force) {
-        if (lastRow === undefined)
-            lastRow = Infinity;
-
-        if (!this.$changedLines) {
-            this.$changedLines = {
-                firstRow: firstRow,
-                lastRow: lastRow
-            };
-        }
-        else {
-            if (this.$changedLines.firstRow > firstRow)
-                this.$changedLines.firstRow = firstRow;
-
-            if (this.$changedLines.lastRow < lastRow)
-                this.$changedLines.lastRow = lastRow;
-        }
-        if (this.$changedLines.lastRow < this.layerConfig.firstRow) {
-            if (force)
-                this.$changedLines.lastRow = this.layerConfig.lastRow;
-            else
-                return;
-        }
-        if (this.$changedLines.firstRow > this.layerConfig.lastRow)
-            return;
-        this.$loop.schedule(this.CHANGE_LINES);
-    };
-
-    this.onChangeNewLineMode = function() {
-        this.$loop.schedule(this.CHANGE_TEXT);
-        this.$textLayer.$updateEolChar();
-    };
-
-    this.onChangeTabSize = function() {
-        this.$loop.schedule(this.CHANGE_TEXT | this.CHANGE_MARKER);
-        this.$textLayer.onChangeTabSize();
-    };
-    this.updateText = function() {
-        this.$loop.schedule(this.CHANGE_TEXT);
-    };
-    this.updateFull = function(force) {
-        if (force)
-            this.$renderChanges(this.CHANGE_FULL, true);
-        else
-            this.$loop.schedule(this.CHANGE_FULL);
-    };
-    this.updateFontSize = function() {
-        this.$textLayer.checkForSizeChanges();
-    };
-
-    this.$changes = 0;
-    this.$updateSizeAsync = function() {
-        if (this.$loop.pending)
-            this.$size.$dirty = true;
-        else
-            this.onResize();
-    };
-    this.onResize = function(force, gutterWidth, width, height) {
-        if (this.resizing > 2)
-            return;
-        else if (this.resizing > 0)
-            this.resizing++;
-        else
-            this.resizing = force ? 1 : 0;
-        var el = this.container;
-        if (!height)
-            height = el.clientHeight || el.scrollHeight;
-        if (!width)
-            width = el.clientWidth || el.scrollWidth;
-        var changes = this.$updateCachedSize(force, gutterWidth, width, height);
-
-
-        if (!this.$size.scrollerHeight || (!width && !height))
-            return this.resizing = 0;
-
-        if (force)
-            this.$gutterLayer.$padding = null;
-
-        if (force)
-            this.$renderChanges(changes | this.$changes, true);
-        else
-            this.$loop.schedule(changes | this.$changes);
-
-        if (this.resizing)
-            this.resizing = 0;
-        this.scrollBarV.scrollLeft = this.scrollBarV.scrollTop = null;
-    };
-
-    this.$updateCachedSize = function(force, gutterWidth, width, height) {
-        height -= (this.$extraHeight || 0);
-        var changes = 0;
-        var size = this.$size;
-        var oldSize = {
-            width: size.width,
-            height: size.height,
-            scrollerHeight: size.scrollerHeight,
-            scrollerWidth: size.scrollerWidth
-        };
-        if (height && (force || size.height != height)) {
-            size.height = height;
-            changes |= this.CHANGE_SIZE;
-
-            size.scrollerHeight = size.height;
-            if (this.$horizScroll)
-                size.scrollerHeight -= this.scrollBarH.getHeight();
-            this.scrollBarV.element.style.bottom = this.scrollBarH.getHeight() + "px";
-
-            changes = changes | this.CHANGE_SCROLL;
-        }
-
-        if (width && (force || size.width != width)) {
-            changes |= this.CHANGE_SIZE;
-            size.width = width;
-
-            if (gutterWidth == null)
-                gutterWidth = this.$showGutter ? this.$gutter.offsetWidth : 0;
-
-            this.gutterWidth = gutterWidth;
-
-            this.scrollBarH.element.style.left =
-            this.scroller.style.left = gutterWidth + "px";
-            size.scrollerWidth = Math.max(0, width - gutterWidth - this.scrollBarV.getWidth());
-
-            this.scrollBarH.element.style.right =
-            this.scroller.style.right = this.scrollBarV.getWidth() + "px";
-            this.scroller.style.bottom = this.scrollBarH.getHeight() + "px";
-
-            if (this.session && this.session.getUseWrapMode() && this.adjustWrapLimit() || force)
-                changes |= this.CHANGE_FULL;
-        }
-
-        size.$dirty = !width || !height;
-
-        if (changes)
-            this._signal("resize", oldSize);
-
-        return changes;
-    };
-
-    this.onGutterResize = function() {
-        var gutterWidth = this.$showGutter ? this.$gutter.offsetWidth : 0;
-        if (gutterWidth != this.gutterWidth)
-            this.$changes |= this.$updateCachedSize(true, gutterWidth, this.$size.width, this.$size.height);
-
-        if (this.session.getUseWrapMode() && this.adjustWrapLimit()) {
-            this.$loop.schedule(this.CHANGE_FULL);
-        } else if (this.$size.$dirty) {
-            this.$loop.schedule(this.CHANGE_FULL);
-        } else {
-            this.$computeLayerConfig();
-            this.$loop.schedule(this.CHANGE_MARKER);
-        }
-    };
-    this.adjustWrapLimit = function() {
-        var availableWidth = this.$size.scrollerWidth - this.$padding * 2;
-        var limit = Math.floor(availableWidth / this.characterWidth);
-        return this.session.adjustWrapLimit(limit, this.$showPrintMargin && this.$printMarginColumn);
-    };
-    this.setAnimatedScroll = function(shouldAnimate){
-        this.setOption("animatedScroll", shouldAnimate);
-    };
-    this.getAnimatedScroll = function() {
-        return this.$animatedScroll;
-    };
-    this.setShowInvisibles = function(showInvisibles) {
-        this.setOption("showInvisibles", showInvisibles);
-    };
-    this.getShowInvisibles = function() {
-        return this.getOption("showInvisibles");
-    };
-    this.getDisplayIndentGuides = function() {
-        return this.getOption("displayIndentGuides");
-    };
-
-    this.setDisplayIndentGuides = function(display) {
-        this.setOption("displayIndentGuides", display);
-    };
-    this.setShowPrintMargin = function(showPrintMargin) {
-        this.setOption("showPrintMargin", showPrintMargin);
-    };
-    this.getShowPrintMargin = function() {
-        return this.getOption("showPrintMargin");
-    };
-    this.setPrintMarginColumn = function(showPrintMargin) {
-        this.setOption("printMarginColumn", showPrintMargin);
-    };
-    this.getPrintMarginColumn = function() {
-        return this.getOption("printMarginColumn");
-    };
-    this.getShowGutter = function(){
-        return this.getOption("showGutter");
-    };
-    this.setShowGutter = function(show){
-        return this.setOption("showGutter", show);
-    };
-
-    this.getFadeFoldWidgets = function(){
-        return this.getOption("fadeFoldWidgets")
-    };
-
-    this.setFadeFoldWidgets = function(show) {
-        this.setOption("fadeFoldWidgets", show);
-    };
-
-    this.setHighlightGutterLine = function(shouldHighlight) {
-        this.setOption("highlightGutterLine", shouldHighlight);
-    };
-
-    this.getHighlightGutterLine = function() {
-        return this.getOption("highlightGutterLine");
-    };
-
-    this.$updateGutterLineHighlight = function() {
-        var pos = this.$cursorLayer.$pixelPos;
-        var height = this.layerConfig.lineHeight;
-        if (this.session.getUseWrapMode()) {
-            var cursor = this.session.selection.getCursor();
-            cursor.column = 0;
-            pos = this.$cursorLayer.getPixelPosition(cursor, true);
-            height *= this.session.getRowLength(cursor.row);
-        }
-        this.$gutterLineHighlight.style.top = pos.top - this.layerConfig.offset + "px";
-        this.$gutterLineHighlight.style.height = height + "px";
-    };
-
-    this.$updatePrintMargin = function() {
-        if (!this.$showPrintMargin && !this.$printMarginEl)
-            return;
-
-        if (!this.$printMarginEl) {
-            var containerEl = dom.createElement("div");
-            containerEl.className = "ace_layer ace_print-margin-layer";
-            this.$printMarginEl = dom.createElement("div");
-            this.$printMarginEl.className = "ace_print-margin";
-            containerEl.appendChild(this.$printMarginEl);
-            this.content.insertBefore(containerEl, this.content.firstChild);
-        }
-
-        var style = this.$printMarginEl.style;
-        style.left = ((this.characterWidth * this.$printMarginColumn) + this.$padding) + "px";
-        style.visibility = this.$showPrintMargin ? "visible" : "hidden";
-
-        if (this.session && this.session.$wrap == -1)
-            this.adjustWrapLimit();
-    };
-    this.getContainerElement = function() {
-        return this.container;
-    };
-    this.getMouseEventTarget = function() {
-        return this.scroller;
-    };
-    this.getTextAreaContainer = function() {
-        return this.container;
-    };
-    this.$moveTextAreaToCursor = function() {
-        if (!this.$keepTextAreaAtCursor)
-            return;
-        var config = this.layerConfig;
-        var posTop = this.$cursorLayer.$pixelPos.top;
-        var posLeft = this.$cursorLayer.$pixelPos.left;
-        posTop -= config.offset;
-
-        var style = this.textarea.style;
-        var h = this.lineHeight;
-        if (posTop < 0 || posTop > config.height - h) {
-            style.top = style.left = "0";
-            return;
-        }
-
-        var w = this.characterWidth;
-        if (this.$composition) {
-            var val = this.textarea.value.replace(/^\x01+/, "");
-            w *= (this.session.$getStringScreenWidth(val)[0]+2);
-            h += 2;
-        }
-        posLeft -= this.scrollLeft;
-        if (posLeft > this.$size.scrollerWidth - w)
-            posLeft = this.$size.scrollerWidth - w;
-
-        posLeft += this.gutterWidth;
-        style.height = h + "px";
-        style.width = w + "px";
-        style.left = Math.min(posLeft, this.$size.scrollerWidth - w) + "px";
-        style.top = Math.min(posTop, this.$size.height - h) + "px";
-    };
-    this.getFirstVisibleRow = function() {
-        return this.layerConfig.firstRow;
-    };
-    this.getFirstFullyVisibleRow = function() {
-        return this.layerConfig.firstRow + (this.layerConfig.offset === 0 ? 0 : 1);
-    };
-    this.getLastFullyVisibleRow = function() {
-        var config = this.layerConfig;
-        var lastRow = config.lastRow
-        var top = this.session.documentToScreenRow(lastRow, 0) * config.lineHeight;
-        if (top - this.session.getScrollTop() > config.height - config.lineHeight)
-            return lastRow - 1;
-        return lastRow;
-    };
-    this.getLastVisibleRow = function() {
-        return this.layerConfig.lastRow;
-    };
-
-    this.$padding = null;
-    this.setPadding = function(padding) {
-        this.$padding = padding;
-        this.$textLayer.setPadding(padding);
-        this.$cursorLayer.setPadding(padding);
-        this.$markerFront.setPadding(padding);
-        this.$markerBack.setPadding(padding);
-        this.$loop.schedule(this.CHANGE_FULL);
-        this.$updatePrintMargin();
-    };
-
-    this.setScrollMargin = function(top, bottom, left, right) {
-        var sm = this.scrollMargin;
-        sm.top = top|0;
-        sm.bottom = bottom|0;
-        sm.right = right|0;
-        sm.left = left|0;
-        sm.v = sm.top + sm.bottom;
-        sm.h = sm.left + sm.right;
-        if (sm.top && this.scrollTop <= 0 && this.session)
-            this.session.setScrollTop(-sm.top);
-        this.updateFull();
-    };
-    this.getHScrollBarAlwaysVisible = function() {
-        return this.$hScrollBarAlwaysVisible;
-    };
-    this.setHScrollBarAlwaysVisible = function(alwaysVisible) {
-        this.setOption("hScrollBarAlwaysVisible", alwaysVisible);
-    };
-    this.getVScrollBarAlwaysVisible = function() {
-        return this.$vScrollBarAlwaysVisible;
-    };
-    this.setVScrollBarAlwaysVisible = function(alwaysVisible) {
-        this.setOption("vScrollBarAlwaysVisible", alwaysVisible);
-    };
-
-    this.$updateScrollBarV = function() {
-        var scrollHeight = this.layerConfig.maxHeight;
-        var scrollerHeight = this.$size.scrollerHeight;
-        if (!this.$maxLines && this.$scrollPastEnd) {
-            scrollHeight -= (scrollerHeight - this.lineHeight) * this.$scrollPastEnd;
-            if (this.scrollTop > scrollHeight - scrollerHeight) {
-                scrollHeight = this.scrollTop + scrollerHeight;
-                this.scrollBarV.scrollTop = null;
-            }
-        }
-        this.scrollBarV.setScrollHeight(scrollHeight + this.scrollMargin.v);
-        this.scrollBarV.setScrollTop(this.scrollTop + this.scrollMargin.top);
-    };
-    this.$updateScrollBarH = function() {
-        this.scrollBarH.setScrollWidth(this.layerConfig.width + 2 * this.$padding + this.scrollMargin.h);
-        this.scrollBarH.setScrollLeft(this.scrollLeft + this.scrollMargin.left);
-    };
-
-    this.$frozen = false;
-    this.freeze = function() {
-        this.$frozen = true;
-    };
-
-    this.unfreeze = function() {
-        this.$frozen = false;
-    };
-
-    this.$renderChanges = function(changes, force) {
-        if (this.$changes) {
-            changes |= this.$changes;
-            this.$changes = 0;
-        }
-        if ((!this.session || !this.container.offsetWidth || this.$frozen) || (!changes && !force)) {
-            this.$changes |= changes;
-            return;
-        }
-        if (this.$size.$dirty) {
-            this.$changes |= changes;
-            return this.onResize(true);
-        }
-        if (!this.lineHeight) {
-            this.$textLayer.checkForSizeChanges();
-        }
-
-        this._signal("beforeRender");
-        var config = this.layerConfig;
-        if (changes & this.CHANGE_FULL ||
-            changes & this.CHANGE_SIZE ||
-            changes & this.CHANGE_TEXT ||
-            changes & this.CHANGE_LINES ||
-            changes & this.CHANGE_SCROLL ||
-            changes & this.CHANGE_H_SCROLL
-        ) {
-            changes |= this.$computeLayerConfig();
-            if (config.firstRow != this.layerConfig.firstRow && config.firstRowScreen == this.layerConfig.firstRowScreen) {
-                var st = this.scrollTop + (config.firstRow - this.layerConfig.firstRow) * this.lineHeight;
-                if (st > 0) {
-                    this.scrollTop = st;
-                    changes = changes | this.CHANGE_SCROLL;
-                    changes |= this.$computeLayerConfig();
-                }
-            }
-            config = this.layerConfig;
-            this.$updateScrollBarV();
-            if (changes & this.CHANGE_H_SCROLL)
-                this.$updateScrollBarH();
-            this.$gutterLayer.element.style.marginTop = (-config.offset) + "px";
-            this.content.style.marginTop = (-config.offset) + "px";
-            this.content.style.width = config.width + 2 * this.$padding + "px";
-            this.content.style.height = config.minHeight + "px";
-        }
-        if (changes & this.CHANGE_H_SCROLL) {
-            this.content.style.marginLeft = -this.scrollLeft + "px";
-            this.scroller.className = this.scrollLeft <= 0 ? "ace_scroller" : "ace_scroller ace_scroll-left";
-        }
-        if (changes & this.CHANGE_FULL) {
-            this.$textLayer.update(config);
-            if (this.$showGutter)
-                this.$gutterLayer.update(config);
-            this.$markerBack.update(config);
-            this.$markerFront.update(config);
-            this.$cursorLayer.update(config);
-            this.$moveTextAreaToCursor();
-            this.$highlightGutterLine && this.$updateGutterLineHighlight();
-            this._signal("afterRender");
-            return;
-        }
-        if (changes & this.CHANGE_SCROLL) {
-            if (changes & this.CHANGE_TEXT || changes & this.CHANGE_LINES)
-                this.$textLayer.update(config);
-            else
-                this.$textLayer.scrollLines(config);
-
-            if (this.$showGutter)
-                this.$gutterLayer.update(config);
-            this.$markerBack.update(config);
-            this.$markerFront.update(config);
-            this.$cursorLayer.update(config);
-            this.$highlightGutterLine && this.$updateGutterLineHighlight();
-            this.$moveTextAreaToCursor();
-            this._signal("afterRender");
-            return;
-        }
-
-        if (changes & this.CHANGE_TEXT) {
-            this.$textLayer.update(config);
-            if (this.$showGutter)
-                this.$gutterLayer.update(config);
-        }
-        else if (changes & this.CHANGE_LINES) {
-            if (this.$updateLines() || (changes & this.CHANGE_GUTTER) && this.$showGutter)
-                this.$gutterLayer.update(config);
-        }
-        else if (changes & this.CHANGE_TEXT || changes & this.CHANGE_GUTTER) {
-            if (this.$showGutter)
-                this.$gutterLayer.update(config);
-        }
-
-        if (changes & this.CHANGE_CURSOR) {
-            this.$cursorLayer.update(config);
-            this.$moveTextAreaToCursor();
-            this.$highlightGutterLine && this.$updateGutterLineHighlight();
-        }
-
-        if (changes & (this.CHANGE_MARKER | this.CHANGE_MARKER_FRONT)) {
-            this.$markerFront.update(config);
-        }
-
-        if (changes & (this.CHANGE_MARKER | this.CHANGE_MARKER_BACK)) {
-            this.$markerBack.update(config);
-        }
-
-        this._signal("afterRender");
-    };
-
-
-    this.$autosize = function() {
-        var height = this.session.getScreenLength() * this.lineHeight;
-        var maxHeight = this.$maxLines * this.lineHeight;
-        var desiredHeight = Math.min(maxHeight,
-            Math.max((this.$minLines || 1) * this.lineHeight, height)
-        ) + this.scrollMargin.v + (this.$extraHeight || 0);
-        if (this.$horizScroll)
-            desiredHeight += this.scrollBarH.getHeight();
-        if (this.$maxPixelHeight && desiredHeight > this.$maxPixelHeight)
-            desiredHeight = this.$maxPixelHeight;
-        var vScroll = height > maxHeight;
-
-        if (desiredHeight != this.desiredHeight ||
-            this.$size.height != this.desiredHeight || vScroll != this.$vScroll) {
-            if (vScroll != this.$vScroll) {
-                this.$vScroll = vScroll;
-                this.scrollBarV.setVisible(vScroll);
-            }
-
-            var w = this.container.clientWidth;
-            this.container.style.height = desiredHeight + "px";
-            this.$updateCachedSize(true, this.$gutterWidth, w, desiredHeight);
-            this.desiredHeight = desiredHeight;
-
-            this._signal("autosize");
-        }
-    };
-
-    this.$computeLayerConfig = function() {
-        var session = this.session;
-        var size = this.$size;
-
-        var hideScrollbars = size.height <= 2 * this.lineHeight;
-        var screenLines = this.session.getScreenLength();
-        var maxHeight = screenLines * this.lineHeight;
-
-        var longestLine = this.$getLongestLine();
-
-        var horizScroll = !hideScrollbars && (this.$hScrollBarAlwaysVisible ||
-            size.scrollerWidth - longestLine - 2 * this.$padding < 0);
-
-        var hScrollChanged = this.$horizScroll !== horizScroll;
-        if (hScrollChanged) {
-            this.$horizScroll = horizScroll;
-            this.scrollBarH.setVisible(horizScroll);
-        }
-        var vScrollBefore = this.$vScroll; // autosize can change vscroll value in which case we need to update longestLine
-        if (this.$maxLines && this.lineHeight > 1)
-            this.$autosize();
-
-        var offset = this.scrollTop % this.lineHeight;
-        var minHeight = size.scrollerHeight + this.lineHeight;
-
-        var scrollPastEnd = !this.$maxLines && this.$scrollPastEnd
-            ? (size.scrollerHeight - this.lineHeight) * this.$scrollPastEnd
-            : 0;
-        maxHeight += scrollPastEnd;
-
-        var sm = this.scrollMargin;
-        this.session.setScrollTop(Math.max(-sm.top,
-            Math.min(this.scrollTop, maxHeight - size.scrollerHeight + sm.bottom)));
-
-        this.session.setScrollLeft(Math.max(-sm.left, Math.min(this.scrollLeft,
-            longestLine + 2 * this.$padding - size.scrollerWidth + sm.right)));
-
-        var vScroll = !hideScrollbars && (this.$vScrollBarAlwaysVisible ||
-            size.scrollerHeight - maxHeight + scrollPastEnd < 0 || this.scrollTop > sm.top);
-        var vScrollChanged = vScrollBefore !== vScroll;
-        if (vScrollChanged) {
-            this.$vScroll = vScroll;
-            this.scrollBarV.setVisible(vScroll);
-        }
-
-        var lineCount = Math.ceil(minHeight / this.lineHeight) - 1;
-        var firstRow = Math.max(0, Math.round((this.scrollTop - offset) / this.lineHeight));
-        var lastRow = firstRow + lineCount;
-        var firstRowScreen, firstRowHeight;
-        var lineHeight = this.lineHeight;
-        firstRow = session.screenToDocumentRow(firstRow, 0);
-        var foldLine = session.getFoldLine(firstRow);
-        if (foldLine) {
-            firstRow = foldLine.start.row;
-        }
-
-        firstRowScreen = session.documentToScreenRow(firstRow, 0);
-        firstRowHeight = session.getRowLength(firstRow) * lineHeight;
-
-        lastRow = Math.min(session.screenToDocumentRow(lastRow, 0), session.getLength() - 1);
-        minHeight = size.scrollerHeight + session.getRowLength(lastRow) * lineHeight +
-                                                firstRowHeight;
-
-        offset = this.scrollTop - firstRowScreen * lineHeight;
-
-        var changes = 0;
-        if (this.layerConfig.width != longestLine)
-            changes = this.CHANGE_H_SCROLL;
-        if (hScrollChanged || vScrollChanged) {
-            changes = this.$updateCachedSize(true, this.gutterWidth, size.width, size.height);
-            this._signal("scrollbarVisibilityChanged");
-            if (vScrollChanged)
-                longestLine = this.$getLongestLine();
-        }
-
-        this.layerConfig = {
-            width : longestLine,
-            padding : this.$padding,
-            firstRow : firstRow,
-            firstRowScreen: firstRowScreen,
-            lastRow : lastRow,
-            lineHeight : lineHeight,
-            characterWidth : this.characterWidth,
-            minHeight : minHeight,
-            maxHeight : maxHeight,
-            offset : offset,
-            gutterOffset : Math.max(0, Math.ceil((offset + size.height - size.scrollerHeight) / lineHeight)),
-            height : this.$size.scrollerHeight
-        };
-
-        return changes;
-    };
-
-    this.$updateLines = function() {
-        var firstRow = this.$changedLines.firstRow;
-        var lastRow = this.$changedLines.lastRow;
-        this.$changedLines = null;
-
-        var layerConfig = this.layerConfig;
-
-        if (firstRow > layerConfig.lastRow + 1) { return; }
-        if (lastRow < layerConfig.firstRow) { return; }
-        if (lastRow === Infinity) {
-            if (this.$showGutter)
-                this.$gutterLayer.update(layerConfig);
-            this.$textLayer.update(layerConfig);
-            return;
-        }
-        this.$textLayer.updateLines(layerConfig, firstRow, lastRow);
-        return true;
-    };
-
-    this.$getLongestLine = function() {
-        var charCount = this.session.getScreenWidth();
-        if (this.showInvisibles && !this.session.$useWrapMode)
-            charCount += 1;
-
-        return Math.max(this.$size.scrollerWidth - 2 * this.$padding, Math.round(charCount * this.characterWidth));
-    };
-    this.updateFrontMarkers = function() {
-        this.$markerFront.setMarkers(this.session.getMarkers(true));
-        this.$loop.schedule(this.CHANGE_MARKER_FRONT);
-    };
-    this.updateBackMarkers = function() {
-        this.$markerBack.setMarkers(this.session.getMarkers());
-        this.$loop.schedule(this.CHANGE_MARKER_BACK);
-    };
-    this.addGutterDecoration = function(row, className){
-        this.$gutterLayer.addGutterDecoration(row, className);
-    };
-    this.removeGutterDecoration = function(row, className){
-        this.$gutterLayer.removeGutterDecoration(row, className);
-    };
-    this.updateBreakpoints = function(rows) {
-        this.$loop.schedule(this.CHANGE_GUTTER);
-    };
-    this.setAnnotations = function(annotations) {
-        this.$gutterLayer.setAnnotations(annotations);
-        this.$loop.schedule(this.CHANGE_GUTTER);
-    };
-    this.updateCursor = function() {
-        this.$loop.schedule(this.CHANGE_CURSOR);
-    };
-    this.hideCursor = function() {
-        this.$cursorLayer.hideCursor();
-    };
-    this.showCursor = function() {
-        this.$cursorLayer.showCursor();
-    };
-
-    this.scrollSelectionIntoView = function(anchor, lead, offset) {
-        this.scrollCursorIntoView(anchor, offset);
-        this.scrollCursorIntoView(lead, offset);
-    };
-    this.scrollCursorIntoView = function(cursor, offset, $viewMargin) {
-        if (this.$size.scrollerHeight === 0)
-            return;
-
-        var pos = this.$cursorLayer.getPixelPosition(cursor);
-
-        var left = pos.left;
-        var top = pos.top;
-
-        var topMargin = $viewMargin && $viewMargin.top || 0;
-        var bottomMargin = $viewMargin && $viewMargin.bottom || 0;
-
-        var scrollTop = this.$scrollAnimation ? this.session.getScrollTop() : this.scrollTop;
-
-        if (scrollTop + topMargin > top) {
-            if (offset && scrollTop + topMargin > top + this.lineHeight)
-                top -= offset * this.$size.scrollerHeight;
-            if (top === 0)
-                top = -this.scrollMargin.top;
-            this.session.setScrollTop(top);
-        } else if (scrollTop + this.$size.scrollerHeight - bottomMargin < top + this.lineHeight) {
-            if (offset && scrollTop + this.$size.scrollerHeight - bottomMargin < top -  this.lineHeight)
-                top += offset * this.$size.scrollerHeight;
-            this.session.setScrollTop(top + this.lineHeight - this.$size.scrollerHeight);
-        }
-
-        var scrollLeft = this.scrollLeft;
-
-        if (scrollLeft > left) {
-            if (left < this.$padding + 2 * this.layerConfig.characterWidth)
-                left = -this.scrollMargin.left;
-            this.session.setScrollLeft(left);
-        } else if (scrollLeft + this.$size.scrollerWidth < left + this.characterWidth) {
-            this.session.setScrollLeft(Math.round(left + this.characterWidth - this.$size.scrollerWidth));
-        } else if (scrollLeft <= this.$padding && left - scrollLeft < this.characterWidth) {
-            this.session.setScrollLeft(0);
-        }
-    };
-    this.getScrollTop = function() {
-        return this.session.getScrollTop();
-    };
-    this.getScrollLeft = function() {
-        return this.session.getScrollLeft();
-    };
-    this.getScrollTopRow = function() {
-        return this.scrollTop / this.lineHeight;
-    };
-    this.getScrollBottomRow = function() {
-        return Math.max(0, Math.floor((this.scrollTop + this.$size.scrollerHeight) / this.lineHeight) - 1);
-    };
-    this.scrollToRow = function(row) {
-        this.session.setScrollTop(row * this.lineHeight);
-    };
-
-    this.alignCursor = function(cursor, alignment) {
-        if (typeof cursor == "number")
-            cursor = {row: cursor, column: 0};
-
-        var pos = this.$cursorLayer.getPixelPosition(cursor);
-        var h = this.$size.scrollerHeight - this.lineHeight;
-        var offset = pos.top - h * (alignment || 0);
-
-        this.session.setScrollTop(offset);
-        return offset;
-    };
-
-    this.STEPS = 8;
-    this.$calcSteps = function(fromValue, toValue){
-        var i = 0;
-        var l = this.STEPS;
-        var steps = [];
-
-        var func  = function(t, x_min, dx) {
-            return dx * (Math.pow(t - 1, 3) + 1) + x_min;
-        };
-
-        for (i = 0; i < l; ++i)
-            steps.push(func(i / this.STEPS, fromValue, toValue - fromValue));
-
-        return steps;
-    };
-    this.scrollToLine = function(line, center, animate, callback) {
-        var pos = this.$cursorLayer.getPixelPosition({row: line, column: 0});
-        var offset = pos.top;
-        if (center)
-            offset -= this.$size.scrollerHeight / 2;
-
-        var initialScroll = this.scrollTop;
-        this.session.setScrollTop(offset);
-        if (animate !== false)
-            this.animateScrolling(initialScroll, callback);
-    };
-
-    this.animateScrolling = function(fromValue, callback) {
-        var toValue = this.scrollTop;
-        if (!this.$animatedScroll)
-            return;
-        var _self = this;
-
-        if (fromValue == toValue)
-            return;
-
-        if (this.$scrollAnimation) {
-            var oldSteps = this.$scrollAnimation.steps;
-            if (oldSteps.length) {
-                fromValue = oldSteps[0];
-                if (fromValue == toValue)
-                    return;
-            }
-        }
-
-        var steps = _self.$calcSteps(fromValue, toValue);
-        this.$scrollAnimation = {from: fromValue, to: toValue, steps: steps};
-
-        clearInterval(this.$timer);
-
-        _self.session.setScrollTop(steps.shift());
-        _self.session.$scrollTop = toValue;
-        this.$timer = setInterval(function() {
-            if (steps.length) {
-                _self.session.setScrollTop(steps.shift());
-                _self.session.$scrollTop = toValue;
-            } else if (toValue != null) {
-                _self.session.$scrollTop = -1;
-                _self.session.setScrollTop(toValue);
-                toValue = null;
-            } else {
-                _self.$timer = clearInterval(_self.$timer);
-                _self.$scrollAnimation = null;
-                callback && callback();
-            }
-        }, 10);
-    };
-    this.scrollToY = function(scrollTop) {
-        if (this.scrollTop !== scrollTop) {
-            this.$loop.schedule(this.CHANGE_SCROLL);
-            this.scrollTop = scrollTop;
-        }
-    };
-    this.scrollToX = function(scrollLeft) {
-        if (this.scrollLeft !== scrollLeft)
-            this.scrollLeft = scrollLeft;
-        this.$loop.schedule(this.CHANGE_H_SCROLL);
-    };
-    this.scrollTo = function(x, y) {
-        this.session.setScrollTop(y);
-        this.session.setScrollLeft(y);
-    };
-    this.scrollBy = function(deltaX, deltaY) {
-        deltaY && this.session.setScrollTop(this.session.getScrollTop() + deltaY);
-        deltaX && this.session.setScrollLeft(this.session.getScrollLeft() + deltaX);
-    };
-    this.isScrollableBy = function(deltaX, deltaY) {
-        if (deltaY < 0 && this.session.getScrollTop() >= 1 - this.scrollMargin.top)
-           return true;
-        if (deltaY > 0 && this.session.getScrollTop() + this.$size.scrollerHeight
-            - this.layerConfig.maxHeight < -1 + this.scrollMargin.bottom)
-           return true;
-        if (deltaX < 0 && this.session.getScrollLeft() >= 1 - this.scrollMargin.left)
-            return true;
-        if (deltaX > 0 && this.session.getScrollLeft() + this.$size.scrollerWidth
-            - this.layerConfig.width < -1 + this.scrollMargin.right)
-           return true;
-    };
-
-    this.pixelToScreenCoordinates = function(x, y) {
-        var canvasPos = this.scroller.getBoundingClientRect();
-
-        var offset = (x + this.scrollLeft - canvasPos.left - this.$padding) / this.characterWidth;
-        var row = Math.floor((y + this.scrollTop - canvasPos.top) / this.lineHeight);
-        var col = Math.round(offset);
-
-        return {row: row, column: col, side: offset - col > 0 ? 1 : -1};
-    };
-
-    this.screenToTextCoordinates = function(x, y) {
-        var canvasPos = this.scroller.getBoundingClientRect();
-
-        var col = Math.round(
-            (x + this.scrollLeft - canvasPos.left - this.$padding) / this.characterWidth
-        );
-
-        var row = (y + this.scrollTop - canvasPos.top) / this.lineHeight;
-
-        return this.session.screenToDocumentPosition(row, Math.max(col, 0));
-    };
-    this.textToScreenCoordinates = function(row, column) {
-        var canvasPos = this.scroller.getBoundingClientRect();
-        var pos = this.session.documentToScreenPosition(row, column);
-
-        var x = this.$padding + Math.round(pos.column * this.characterWidth);
-        var y = pos.row * this.lineHeight;
-
-        return {
-            pageX: canvasPos.left + x - this.scrollLeft,
-            pageY: canvasPos.top + y - this.scrollTop
-        };
-    };
-    this.visualizeFocus = function() {
-        dom.addCssClass(this.container, "ace_focus");
-    };
-    this.visualizeBlur = function() {
-        dom.removeCssClass(this.container, "ace_focus");
-    };
-    this.showComposition = function(position) {
-        if (!this.$composition)
-            this.$composition = {
-                keepTextAreaAtCursor: this.$keepTextAreaAtCursor,
-                cssText: this.textarea.style.cssText
-            };
-
-        this.$keepTextAreaAtCursor = true;
-        dom.addCssClass(this.textarea, "ace_composition");
-        this.textarea.style.cssText = "";
-        this.$moveTextAreaToCursor();
-    };
-    this.setCompositionText = function(text) {
-        this.$moveTextAreaToCursor();
-    };
-    this.hideComposition = function() {
-        if (!this.$composition)
-            return;
-
-        dom.removeCssClass(this.textarea, "ace_composition");
-        this.$keepTextAreaAtCursor = this.$composition.keepTextAreaAtCursor;
-        this.textarea.style.cssText = this.$composition.cssText;
-        this.$composition = null;
-    };
-    this.setTheme = function(theme, cb) {
-        var _self = this;
-        this.$themeId = theme;
-        _self._dispatchEvent('themeChange',{theme:theme});
-
-        if (!theme || typeof theme == "string") {
-            var moduleName = theme || this.$options.theme.initialValue;
-            config.loadModule(["theme", moduleName], afterLoad);
-        } else {
-            afterLoad(theme);
-        }
-
-        function afterLoad(module) {
-            if (_self.$themeId != theme)
-                return cb && cb();
-            if (!module.cssClass)
-                return;
-            dom.importCssString(
-                module.cssText,
-                module.cssClass,
-                _self.container.ownerDocument
-            );
-
-            if (_self.theme)
-                dom.removeCssClass(_self.container, _self.theme.cssClass);
-
-            var padding = "padding" in module ? module.padding
-                : "padding" in (_self.theme || {}) ? 4 : _self.$padding;
-            if (_self.$padding && padding != _self.$padding)
-                _self.setPadding(padding);
-            _self.$theme = module.cssClass;
-
-            _self.theme = module;
-            dom.addCssClass(_self.container, module.cssClass);
-            dom.setCssClass(_self.container, "ace_dark", module.isDark);
-            if (_self.$size) {
-                _self.$size.width = 0;
-                _self.$updateSizeAsync();
-            }
-
-            _self._dispatchEvent('themeLoaded', {theme:module});
-            cb && cb();
-        }
-    };
-    this.getTheme = function() {
-        return this.$themeId;
-    };
-    this.setStyle = function(style, include) {
-        dom.setCssClass(this.container, style, include !== false);
-    };
-    this.unsetStyle = function(style) {
-        dom.removeCssClass(this.container, style);
-    };
-
-    this.setCursorStyle = function(style) {
-        if (this.scroller.style.cursor != style)
-            this.scroller.style.cursor = style;
-    };
-    this.setMouseCursor = function(cursorStyle) {
-        this.scroller.style.cursor = cursorStyle;
-    };
-    this.destroy = function() {
-        this.$textLayer.destroy();
-        this.$cursorLayer.destroy();
-    };
-
-}).call(VirtualRenderer.prototype);
-
-
-config.defineOptions(VirtualRenderer.prototype, "renderer", {
-    animatedScroll: {initialValue: false},
-    showInvisibles: {
-        set: function(value) {
-            if (this.$textLayer.setShowInvisibles(value))
-                this.$loop.schedule(this.CHANGE_TEXT);
-        },
-        initialValue: false
-    },
-    showPrintMargin: {
-        set: function() { this.$updatePrintMargin(); },
-        initialValue: true
-    },
-    printMarginColumn: {
-        set: function() { this.$updatePrintMargin(); },
-        initialValue: 80
-    },
-    printMargin: {
-        set: function(val) {
-            if (typeof val == "number")
-                this.$printMarginColumn = val;
-            this.$showPrintMargin = !!val;
-            this.$updatePrintMargin();
-        },
-        get: function() {
-            return this.$showPrintMargin && this.$printMarginColumn;
-        }
-    },
-    showGutter: {
-        set: function(show){
-            this.$gutter.style.display = show ? "block" : "none";
-            this.$loop.schedule(this.CHANGE_FULL);
-            this.onGutterResize();
-        },
-        initialValue: true
-    },
-    fadeFoldWidgets: {
-        set: function(show) {
-            dom.setCssClass(this.$gutter, "ace_fade-fold-widgets", show);
-        },
-        initialValue: false
-    },
-    showFoldWidgets: {
-        set: function(show) {this.$gutterLayer.setShowFoldWidgets(show)},
-        initialValue: true
-    },
-    showLineNumbers: {
-        set: function(show) {
-            this.$gutterLayer.setShowLineNumbers(show);
-            this.$loop.schedule(this.CHANGE_GUTTER);
-        },
-        initialValue: true
-    },
-    displayIndentGuides: {
-        set: function(show) {
-            if (this.$textLayer.setDisplayIndentGuides(show))
-                this.$loop.schedule(this.CHANGE_TEXT);
-        },
-        initialValue: true
-    },
-    highlightGutterLine: {
-        set: function(shouldHighlight) {
-            if (!this.$gutterLineHighlight) {
-                this.$gutterLineHighlight = dom.createElement("div");
-                this.$gutterLineHighlight.className = "ace_gutter-active-line";
-                this.$gutter.appendChild(this.$gutterLineHighlight);
-                return;
-            }
-
-            this.$gutterLineHighlight.style.display = shouldHighlight ? "" : "none";
-            if (this.$cursorLayer.$pixelPos)
-                this.$updateGutterLineHighlight();
-        },
-        initialValue: false,
-        value: true
-    },
-    hScrollBarAlwaysVisible: {
-        set: function(val) {
-            if (!this.$hScrollBarAlwaysVisible || !this.$horizScroll)
-                this.$loop.schedule(this.CHANGE_SCROLL);
-        },
-        initialValue: false
-    },
-    vScrollBarAlwaysVisible: {
-        set: function(val) {
-            if (!this.$vScrollBarAlwaysVisible || !this.$vScroll)
-                this.$loop.schedule(this.CHANGE_SCROLL);
-        },
-        initialValue: false
-    },
-    fontSize:  {
-        set: function(size) {
-            if (typeof size == "number")
-                size = size + "px";
-            this.container.style.fontSize = size;
-            this.updateFontSize();
-        },
-        initialValue: 12
-    },
-    fontFamily: {
-        set: function(name) {
-            this.container.style.fontFamily = name;
-            this.updateFontSize();
-        }
-    },
-    maxLines: {
-        set: function(val) {
-            this.updateFull();
-        }
-    },
-    minLines: {
-        set: function(val) {
-            this.updateFull();
-        }
-    },
-    maxPixelHeight: {
-        set: function(val) {
-            this.updateFull();
-        },
-        initialValue: 0
-    },
-    scrollPastEnd: {
-        set: function(val) {
-            val = +val || 0;
-            if (this.$scrollPastEnd == val)
-                return;
-            this.$scrollPastEnd = val;
-            this.$loop.schedule(this.CHANGE_SCROLL);
-        },
-        initialValue: 0,
-        handlesSet: true
-    },
-    fixedWidthGutter: {
-        set: function(val) {
-            this.$gutterLayer.$fixedWidth = !!val;
-            this.$loop.schedule(this.CHANGE_GUTTER);
-        }
-    },
-    theme: {
-        set: function(val) { this.setTheme(val) },
-        get: function() { return this.$themeId || this.theme; },
-        initialValue: "./theme/textmate",
-        handlesSet: true
-    }
-});
-
-exports.VirtualRenderer = VirtualRenderer;
-});
-
-ace.define("ace/worker/worker_client",["require","exports","module","ace/lib/oop","ace/lib/net","ace/lib/event_emitter","ace/config"], function(require, exports, module) {
-"use strict";
-
-var oop = require("../lib/oop");
-var net = require("../lib/net");
-var EventEmitter = require("../lib/event_emitter").EventEmitter;
-var config = require("../config");
-
-var WorkerClient = function(topLevelNamespaces, mod, classname, workerUrl) {
-    this.$sendDeltaQueue = this.$sendDeltaQueue.bind(this);
-    this.changeListener = this.changeListener.bind(this);
-    this.onMessage = this.onMessage.bind(this);
-    if (require.nameToUrl && !require.toUrl)
-        require.toUrl = require.nameToUrl;
-
-    if (config.get("packaged") || !require.toUrl) {
-        workerUrl = workerUrl || config.moduleUrl(mod, "worker");
-    } else {
-        var normalizePath = this.$normalizePath;
-        workerUrl = workerUrl || normalizePath(require.toUrl("ace/worker/worker.js", null, "_"));
-
-        var tlns = {};
-        topLevelNamespaces.forEach(function(ns) {
-            tlns[ns] = normalizePath(require.toUrl(ns, null, "_").replace(/(\.js)?(\?.*)?$/, ""));
-        });
-    }
-
-    try {
-        this.$worker = new Worker(workerUrl);
-    } catch(e) {
-        if (e instanceof window.DOMException) {
-            var blob = this.$workerBlob(workerUrl);
-            var URL = window.URL || window.webkitURL;
-            var blobURL = URL.createObjectURL(blob);
-
-            this.$worker = new Worker(blobURL);
-            URL.revokeObjectURL(blobURL);
-        } else {
-            throw e;
-        }
-    }
-    this.$worker.postMessage({
-        init : true,
-        tlns : tlns,
-        module : mod,
-        classname : classname
-    });
-
-    this.callbackId = 1;
-    this.callbacks = {};
-
-    this.$worker.onmessage = this.onMessage;
-};
-
-(function(){
-
-    oop.implement(this, EventEmitter);
-
-    this.onMessage = function(e) {
-        var msg = e.data;
-        switch(msg.type) {
-            case "event":
-                this._signal(msg.name, {data: msg.data});
-                break;
-            case "call":
-                var callback = this.callbacks[msg.id];
-                if (callback) {
-                    callback(msg.data);
-                    delete this.callbacks[msg.id];
-                }
-                break;
-            case "error":
-                this.reportError(msg.data);
-                break;
-            case "log":
-                window.console && console.log && console.log.apply(console, msg.data);
-                break;
-        }
-    };
-
-    this.reportError = function(err) {
-        window.console && console.error && console.error(err);
-    };
-
-    this.$normalizePath = function(path) {
-        return net.qualifyURL(path);
-    };
-
-    this.terminate = function() {
-        this._signal("terminate", {});
-        this.deltaQueue = null;
-        this.$worker.terminate();
-        this.$worker = null;
-        if (this.$doc)
-            this.$doc.off("change", this.changeListener);
-        this.$doc = null;
-    };
-
-    this.send = function(cmd, args) {
-        this.$worker.postMessage({command: cmd, args: args});
-    };
-
-    this.call = function(cmd, args, callback) {
-        if (callback) {
-            var id = this.callbackId++;
-            this.callbacks[id] = callback;
-            args.push(id);
-        }
-        this.send(cmd, args);
-    };
-
-    this.emit = function(event, data) {
-        try {
-            this.$worker.postMessage({event: event, data: {data: data.data}});
-        }
-        catch(ex) {
-            console.error(ex.stack);
-        }
-    };
-
-    this.attachToDocument = function(doc) {
-        if(this.$doc)
-            this.terminate();
-
-        this.$doc = doc;
-        this.call("setValue", [doc.getValue()]);
-        doc.on("change", this.changeListener);
-    };
-
-    this.changeListener = function(delta) {
-        if (!this.deltaQueue) {
-            this.deltaQueue = [];
-            setTimeout(this.$sendDeltaQueue, 0);
-        }
-        if (delta.action == "insert")
-            this.deltaQueue.push(delta.start, delta.lines);
-        else
-            this.deltaQueue.push(delta.start, delta.end);
-    };
-
-    this.$sendDeltaQueue = function() {
-        var q = this.deltaQueue;
-        if (!q) return;
-        this.deltaQueue = null;
-        if (q.length > 50 && q.length > this.$doc.getLength() >> 1) {
-            this.call("setValue", [this.$doc.getValue()]);
-        } else
-            this.emit("change", {data: q});
-    };
-
-    this.$workerBlob = function(workerUrl) {
-        var script = "importScripts('" + net.qualifyURL(workerUrl) + "');";
-        try {
-            return new Blob([script], {"type": "application/javascript"});
-        } catch (e) { // Backwards-compatibility
-            var BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder;
-            var blobBuilder = new BlobBuilder();
-            blobBuilder.append(script);
-            return blobBuilder.getBlob("application/javascript");
-        }
-    };
-
-}).call(WorkerClient.prototype);
-
-
-var UIWorkerClient = function(topLevelNamespaces, mod, classname) {
-    this.$sendDeltaQueue = this.$sendDeltaQueue.bind(this);
-    this.changeListener = this.changeListener.bind(this);
-    this.callbackId = 1;
-    this.callbacks = {};
-    this.messageBuffer = [];
-
-    var main = null;
-    var emitSync = false;
-    var sender = Object.create(EventEmitter);
-    var _self = this;
-
-    this.$worker = {};
-    this.$worker.terminate = function() {};
-    this.$worker.postMessage = function(e) {
-        _self.messageBuffer.push(e);
-        if (main) {
-            if (emitSync)
-                setTimeout(processNext);
-            else
-                processNext();
-        }
-    };
-    this.setEmitSync = function(val) { emitSync = val };
-
-    var processNext = function() {
-        var msg = _self.messageBuffer.shift();
-        if (msg.command)
-            main[msg.command].apply(main, msg.args);
-        else if (msg.event)
-            sender._signal(msg.event, msg.data);
-    };
-
-    sender.postMessage = function(msg) {
-        _self.onMessage({data: msg});
-    };
-    sender.callback = function(data, callbackId) {
-        this.postMessage({type: "call", id: callbackId, data: data});
-    };
-    sender.emit = function(name, data) {
-        this.postMessage({type: "event", name: name, data: data});
-    };
-
-    config.loadModule(["worker", mod], function(Main) {
-        main = new Main[classname](sender);
-        while (_self.messageBuffer.length)
-            processNext();
-    });
-};
-
-UIWorkerClient.prototype = WorkerClient.prototype;
-
-exports.UIWorkerClient = UIWorkerClient;
-exports.WorkerClient = WorkerClient;
-
-});
-
-ace.define("ace/placeholder",["require","exports","module","ace/range","ace/lib/event_emitter","ace/lib/oop"], function(require, exports, module) {
-"use strict";
-
-var Range = require("./range").Range;
-var EventEmitter = require("./lib/event_emitter").EventEmitter;
-var oop = require("./lib/oop");
-
-var PlaceHolder = function(session, length, pos, others, mainClass, othersClass) {
-    var _self = this;
-    this.length = length;
-    this.session = session;
-    this.doc = session.getDocument();
-    this.mainClass = mainClass;
-    this.othersClass = othersClass;
-    this.$onUpdate = this.onUpdate.bind(this);
-    this.doc.on("change", this.$onUpdate);
-    this.$others = others;
-
-    this.$onCursorChange = function() {
-        setTimeout(function() {
-            _self.onCursorChange();
-        });
-    };
-
-    this.$pos = pos;
-    var undoStack = session.getUndoManager().$undoStack || session.getUndoManager().$undostack || {length: -1};
-    this.$undoStackDepth = undoStack.length;
-    this.setup();
-
-    session.selection.on("changeCursor", this.$onCursorChange);
-};
-
-(function() {
-
-    oop.implement(this, EventEmitter);
-    this.setup = function() {
-        var _self = this;
-        var doc = this.doc;
-        var session = this.session;
-
-        this.selectionBefore = session.selection.toJSON();
-        if (session.selection.inMultiSelectMode)
-            session.selection.toSingleRange();
-
-        this.pos = doc.createAnchor(this.$pos.row, this.$pos.column);
-        var pos = this.pos;
-        pos.$insertRight = true;
-        pos.detach();
-        pos.markerId = session.addMarker(new Range(pos.row, pos.column, pos.row, pos.column + this.length), this.mainClass, null, false);
-        this.others = [];
-        this.$others.forEach(function(other) {
-            var anchor = doc.createAnchor(other.row, other.column);
-            anchor.$insertRight = true;
-            anchor.detach();
-            _self.others.push(anchor);
-        });
-        session.setUndoSelect(false);
-    };
-    this.showOtherMarkers = function() {
-        if (this.othersActive) return;
-        var session = this.session;
-        var _self = this;
-        this.othersActive = true;
-        this.others.forEach(function(anchor) {
-            anchor.markerId = session.addMarker(new Range(anchor.row, anchor.column, anchor.row, anchor.column+_self.length), _self.othersClass, null, false);
-        });
-    };
-    this.hideOtherMarkers = function() {
-        if (!this.othersActive) return;
-        this.othersActive = false;
-        for (var i = 0; i < this.others.length; i++) {
-            this.session.removeMarker(this.others[i].markerId);
-        }
-    };
-    this.onUpdate = function(delta) {
-        if (this.$updating)
-            return this.updateAnchors(delta);
-
-        var range = delta;
-        if (range.start.row !== range.end.row) return;
-        if (range.start.row !== this.pos.row) return;
-        this.$updating = true;
-        var lengthDiff = delta.action === "insert" ? range.end.column - range.start.column : range.start.column - range.end.column;
-        var inMainRange = range.start.column >= this.pos.column && range.start.column <= this.pos.column + this.length + 1;
-        var distanceFromStart = range.start.column - this.pos.column;
-
-        this.updateAnchors(delta);
-
-        if (inMainRange)
-            this.length += lengthDiff;
-
-        if (inMainRange && !this.session.$fromUndo) {
-            if (delta.action === 'insert') {
-                for (var i = this.others.length - 1; i >= 0; i--) {
-                    var otherPos = this.others[i];
-                    var newPos = {row: otherPos.row, column: otherPos.column + distanceFromStart};
-                    this.doc.insertMergedLines(newPos, delta.lines);
-                }
-            } else if (delta.action === 'remove') {
-                for (var i = this.others.length - 1; i >= 0; i--) {
-                    var otherPos = this.others[i];
-                    var newPos = {row: otherPos.row, column: otherPos.column + distanceFromStart};
-                    this.doc.remove(new Range(newPos.row, newPos.column, newPos.row, newPos.column - lengthDiff));
-                }
-            }
-        }
-
-        this.$updating = false;
-        this.updateMarkers();
-    };
-
-    this.updateAnchors = function(delta) {
-        this.pos.onChange(delta);
-        for (var i = this.others.length; i--;)
-            this.others[i].onChange(delta);
-        this.updateMarkers();
-    };
-
-    this.updateMarkers = function() {
-        if (this.$updating)
-            return;
-        var _self = this;
-        var session = this.session;
-        var updateMarker = function(pos, className) {
-            session.removeMarker(pos.markerId);
-            pos.markerId = session.addMarker(new Range(pos.row, pos.column, pos.row, pos.column+_self.length), className, null, false);
-        };
-        updateMarker(this.pos, this.mainClass);
-        for (var i = this.others.length; i--;)
-            updateMarker(this.others[i], this.othersClass);
-    };
-
-    this.onCursorChange = function(event) {
-        if (this.$updating || !this.session) return;
-        var pos = this.session.selection.getCursor();
-        if (pos.row === this.pos.row && pos.column >= this.pos.column && pos.column <= this.pos.column + this.length) {
-            this.showOtherMarkers();
-            this._emit("cursorEnter", event);
-        } else {
-            this.hideOtherMarkers();
-            this._emit("cursorLeave", event);
-        }
-    };
-    this.detach = function() {
-        this.session.removeMarker(this.pos && this.pos.markerId);
-        this.hideOtherMarkers();
-        this.doc.removeEventListener("change", this.$onUpdate);
-        this.session.selection.removeEventListener("changeCursor", this.$onCursorChange);
-        this.session.setUndoSelect(true);
-        this.session = null;
-    };
-    this.cancel = function() {
-        if (this.$undoStackDepth === -1)
-            return;
-        var undoManager = this.session.getUndoManager();
-        var undosRequired = (undoManager.$undoStack || undoManager.$undostack).length - this.$undoStackDepth;
-        for (var i = 0; i < undosRequired; i++) {
-            undoManager.undo(true);
-        }
-        if (this.selectionBefore)
-            this.session.selection.fromJSON(this.selectionBefore);
-    };
-}).call(PlaceHolder.prototype);
-
-
-exports.PlaceHolder = PlaceHolder;
-});
-
-ace.define("ace/mouse/multi_select_handler",["require","exports","module","ace/lib/event","ace/lib/useragent"], function(require, exports, module) {
-
-var event = require("../lib/event");
-var useragent = require("../lib/useragent");
-function isSamePoint(p1, p2) {
-    return p1.row == p2.row && p1.column == p2.column;
-}
-
-function onMouseDown(e) {
-    var ev = e.domEvent;
-    var alt = ev.altKey;
-    var shift = ev.shiftKey;
-    var ctrl = ev.ctrlKey;
-    var accel = e.getAccelKey();
-    var button = e.getButton();
-
-    if (ctrl && useragent.isMac)
-        button = ev.button;
-
-    if (e.editor.inMultiSelectMode && button == 2) {
-        e.editor.textInput.onContextMenu(e.domEvent);
-        return;
-    }
-
-    if (!ctrl && !alt && !accel) {
-        if (button === 0 && e.editor.inMultiSelectMode)
-            e.editor.exitMultiSelectMode();
-        return;
-    }
-
-    if (button !== 0)
-        return;
-
-    var editor = e.editor;
-    var selection = editor.selection;
-    var isMultiSelect = editor.inMultiSelectMode;
-    var pos = e.getDocumentPosition();
-    var cursor = selection.getCursor();
-    var inSelection = e.inSelection() || (selection.isEmpty() && isSamePoint(pos, cursor));
-
-    var mouseX = e.x, mouseY = e.y;
-    var onMouseSelection = function(e) {
-        mouseX = e.clientX;
-        mouseY = e.clientY;
-    };
-
-    var session = editor.session;
-    var screenAnchor = editor.renderer.pixelToScreenCoordinates(mouseX, mouseY);
-    var screenCursor = screenAnchor;
-
-    var selectionMode;
-    if (editor.$mouseHandler.$enableJumpToDef) {
-        if (ctrl && alt || accel && alt)
-            selectionMode = shift ? "block" : "add";
-        else if (alt && editor.$blockSelectEnabled)
-            selectionMode = "block";
-    } else {
-        if (accel && !alt) {
-            selectionMode = "add";
-            if (!isMultiSelect && shift)
-                return;
-        } else if (alt && editor.$blockSelectEnabled) {
-            selectionMode = "block";
-        }
-    }
-
-    if (selectionMode && useragent.isMac && ev.ctrlKey) {
-        editor.$mouseHandler.cancelContextMenu();
-    }
-
-    if (selectionMode == "add") {
-        if (!isMultiSelect && inSelection)
-            return; // dragging
-
-        if (!isMultiSelect) {
-            var range = selection.toOrientedRange();
-            editor.addSelectionMarker(range);
-        }
-
-        var oldRange = selection.rangeList.rangeAtPoint(pos);
-
-
-        editor.$blockScrolling++;
-        editor.inVirtualSelectionMode = true;
-
-        if (shift) {
-            oldRange = null;
-            range = selection.ranges[0] || range;
-            editor.removeSelectionMarker(range);
-        }
-        editor.once("mouseup", function() {
-            var tmpSel = selection.toOrientedRange();
-
-            if (oldRange && tmpSel.isEmpty() && isSamePoint(oldRange.cursor, tmpSel.cursor))
-                selection.substractPoint(tmpSel.cursor);
-            else {
-                if (shift) {
-                    selection.substractPoint(range.cursor);
-                } else if (range) {
-                    editor.removeSelectionMarker(range);
-                    selection.addRange(range);
-                }
-                selection.addRange(tmpSel);
-            }
-            editor.$blockScrolling--;
-            editor.inVirtualSelectionMode = false;
-        });
-
-    } else if (selectionMode == "block") {
-        e.stop();
-        editor.inVirtualSelectionMode = true;
-        var initialRange;
-        var rectSel = [];
-        var blockSelect = function() {
-            var newCursor = editor.renderer.pixelToScreenCoordinates(mouseX, mouseY);
-            var cursor = session.screenToDocumentPosition(newCursor.row, newCursor.column);
-
-            if (isSamePoint(screenCursor, newCursor) && isSamePoint(cursor, selection.lead))
-                return;
-            screenCursor = newCursor;
-
-            editor.$blockScrolling++;
-            editor.selection.moveToPosition(cursor);
-            editor.renderer.scrollCursorIntoView();
-
-            editor.removeSelectionMarkers(rectSel);
-            rectSel = selection.rectangularRangeBlock(screenCursor, screenAnchor);
-            if (editor.$mouseHandler.$clickSelection && rectSel.length == 1 && rectSel[0].isEmpty())
-                rectSel[0] = editor.$mouseHandler.$clickSelection.clone();
-            rectSel.forEach(editor.addSelectionMarker, editor);
-            editor.updateSelectionMarkers();
-            editor.$blockScrolling--;
-        };
-        editor.$blockScrolling++;
-        if (isMultiSelect && !accel) {
-            selection.toSingleRange();
-        } else if (!isMultiSelect && accel) {
-            initialRange = selection.toOrientedRange();
-            editor.addSelectionMarker(initialRange);
-        }
-
-        if (shift)
-            screenAnchor = session.documentToScreenPosition(selection.lead);
-        else
-            selection.moveToPosition(pos);
-        editor.$blockScrolling--;
-
-        screenCursor = {row: -1, column: -1};
-
-        var onMouseSelectionEnd = function(e) {
-            clearInterval(timerId);
-            editor.removeSelectionMarkers(rectSel);
-            if (!rectSel.length)
-                rectSel = [selection.toOrientedRange()];
-            editor.$blockScrolling++;
-            if (initialRange) {
-                editor.removeSelectionMarker(initialRange);
-                selection.toSingleRange(initialRange);
-            }
-            for (var i = 0; i < rectSel.length; i++)
-                selection.addRange(rectSel[i]);
-            editor.inVirtualSelectionMode = false;
-            editor.$mouseHandler.$clickSelection = null;
-            editor.$blockScrolling--;
-        };
-
-        var onSelectionInterval = blockSelect;
-
-        event.capture(editor.container, onMouseSelection, onMouseSelectionEnd);
-        var timerId = setInterval(function() {onSelectionInterval();}, 20);
-
-        return e.preventDefault();
-    }
-}
-
-
-exports.onMouseDown = onMouseDown;
-
-});
-
-ace.define("ace/commands/multi_select_commands",["require","exports","module","ace/keyboard/hash_handler"], function(require, exports, module) {
-exports.defaultCommands = [{
-    name: "addCursorAbove",
-    exec: function(editor) { editor.selectMoreLines(-1); },
-    bindKey: {win: "Ctrl-Alt-Up", mac: "Ctrl-Alt-Up"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "addCursorBelow",
-    exec: function(editor) { editor.selectMoreLines(1); },
-    bindKey: {win: "Ctrl-Alt-Down", mac: "Ctrl-Alt-Down"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "addCursorAboveSkipCurrent",
-    exec: function(editor) { editor.selectMoreLines(-1, true); },
-    bindKey: {win: "Ctrl-Alt-Shift-Up", mac: "Ctrl-Alt-Shift-Up"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "addCursorBelowSkipCurrent",
-    exec: function(editor) { editor.selectMoreLines(1, true); },
-    bindKey: {win: "Ctrl-Alt-Shift-Down", mac: "Ctrl-Alt-Shift-Down"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectMoreBefore",
-    exec: function(editor) { editor.selectMore(-1); },
-    bindKey: {win: "Ctrl-Alt-Left", mac: "Ctrl-Alt-Left"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectMoreAfter",
-    exec: function(editor) { editor.selectMore(1); },
-    bindKey: {win: "Ctrl-Alt-Right", mac: "Ctrl-Alt-Right"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectNextBefore",
-    exec: function(editor) { editor.selectMore(-1, true); },
-    bindKey: {win: "Ctrl-Alt-Shift-Left", mac: "Ctrl-Alt-Shift-Left"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "selectNextAfter",
-    exec: function(editor) { editor.selectMore(1, true); },
-    bindKey: {win: "Ctrl-Alt-Shift-Right", mac: "Ctrl-Alt-Shift-Right"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}, {
-    name: "splitIntoLines",
-    exec: function(editor) { editor.multiSelect.splitIntoLines(); },
-    bindKey: {win: "Ctrl-Alt-L", mac: "Ctrl-Alt-L"},
-    readOnly: true
-}, {
-    name: "alignCursors",
-    exec: function(editor) { editor.alignCursors(); },
-    bindKey: {win: "Ctrl-Alt-A", mac: "Ctrl-Alt-A"},
-    scrollIntoView: "cursor"
-}, {
-    name: "findAll",
-    exec: function(editor) { editor.findAll(); },
-    bindKey: {win: "Ctrl-Alt-K", mac: "Ctrl-Alt-G"},
-    scrollIntoView: "cursor",
-    readOnly: true
-}];
-exports.multiSelectCommands = [{
-    name: "singleSelection",
-    bindKey: "esc",
-    exec: function(editor) { editor.exitMultiSelectMode(); },
-    scrollIntoView: "cursor",
-    readOnly: true,
-    isAvailable: function(editor) {return editor && editor.inMultiSelectMode}
-}];
-
-var HashHandler = require("../keyboard/hash_handler").HashHandler;
-exports.keyboardHandler = new HashHandler(exports.multiSelectCommands);
-
-});
-
-ace.define("ace/multi_select",["require","exports","module","ace/range_list","ace/range","ace/selection","ace/mouse/multi_select_handler","ace/lib/event","ace/lib/lang","ace/commands/multi_select_commands","ace/search","ace/edit_session","ace/editor","ace/config"], function(require, exports, module) {
-
-var RangeList = require("./range_list").RangeList;
-var Range = require("./range").Range;
-var Selection = require("./selection").Selection;
-var onMouseDown = require("./mouse/multi_select_handler").onMouseDown;
-var event = require("./lib/event");
-var lang = require("./lib/lang");
-var commands = require("./commands/multi_select_commands");
-exports.commands = commands.defaultCommands.concat(commands.multiSelectCommands);
-var Search = require("./search").Search;
-var search = new Search();
-
-function find(session, needle, dir) {
-    search.$options.wrap = true;
-    search.$options.needle = needle;
-    search.$options.backwards = dir == -1;
-    return search.find(session);
-}
-var EditSession = require("./edit_session").EditSession;
-(function() {
-    this.getSelectionMarkers = function() {
-        return this.$selectionMarkers;
-    };
-}).call(EditSession.prototype);
-(function() {
-    this.ranges = null;
-    this.rangeList = null;
-    this.addRange = function(range, $blockChangeEvents) {
-        if (!range)
-            return;
-
-        if (!this.inMultiSelectMode && this.rangeCount === 0) {
-            var oldRange = this.toOrientedRange();
-            this.rangeList.add(oldRange);
-            this.rangeList.add(range);
-            if (this.rangeList.ranges.length != 2) {
-                this.rangeList.removeAll();
-                return $blockChangeEvents || this.fromOrientedRange(range);
-            }
-            this.rangeList.removeAll();
-            this.rangeList.add(oldRange);
-            this.$onAddRange(oldRange);
-        }
-
-        if (!range.cursor)
-            range.cursor = range.end;
-
-        var removed = this.rangeList.add(range);
-
-        this.$onAddRange(range);
-
-        if (removed.length)
-            this.$onRemoveRange(removed);
-
-        if (this.rangeCount > 1 && !this.inMultiSelectMode) {
-            this._signal("multiSelect");
-            this.inMultiSelectMode = true;
-            this.session.$undoSelect = false;
-            this.rangeList.attach(this.session);
-        }
-
-        return $blockChangeEvents || this.fromOrientedRange(range);
-    };
-
-    this.toSingleRange = function(range) {
-        range = range || this.ranges[0];
-        var removed = this.rangeList.removeAll();
-        if (removed.length)
-            this.$onRemoveRange(removed);
-
-        range && this.fromOrientedRange(range);
-    };
-    this.substractPoint = function(pos) {
-        var removed = this.rangeList.substractPoint(pos);
-        if (removed) {
-            this.$onRemoveRange(removed);
-            return removed[0];
-        }
-    };
-    this.mergeOverlappingRanges = function() {
-        var removed = this.rangeList.merge();
-        if (removed.length)
-            this.$onRemoveRange(removed);
-        else if(this.ranges[0])
-            this.fromOrientedRange(this.ranges[0]);
-    };
-
-    this.$onAddRange = function(range) {
-        this.rangeCount = this.rangeList.ranges.length;
-        this.ranges.unshift(range);
-        this._signal("addRange", {range: range});
-    };
-
-    this.$onRemoveRange = function(removed) {
-        this.rangeCount = this.rangeList.ranges.length;
-        if (this.rangeCount == 1 && this.inMultiSelectMode) {
-            var lastRange = this.rangeList.ranges.pop();
-            removed.push(lastRange);
-            this.rangeCount = 0;
-        }
-
-        for (var i = removed.length; i--; ) {
-            var index = this.ranges.indexOf(removed[i]);
-            this.ranges.splice(index, 1);
-        }
-
-        this._signal("removeRange", {ranges: removed});
-
-        if (this.rangeCount === 0 && this.inMultiSelectMode) {
-            this.inMultiSelectMode = false;
-            this._signal("singleSelect");
-            this.session.$undoSelect = true;
-            this.rangeList.detach(this.session);
-        }
-
-        lastRange = lastRange || this.ranges[0];
-        if (lastRange && !lastRange.isEqual(this.getRange()))
-            this.fromOrientedRange(lastRange);
-    };
-    this.$initRangeList = function() {
-        if (this.rangeList)
-            return;
-
-        this.rangeList = new RangeList();
-        this.ranges = [];
-        this.rangeCount = 0;
-    };
-    this.getAllRanges = function() {
-        return this.rangeCount ? this.rangeList.ranges.concat() : [this.getRange()];
-    };
-
-    this.splitIntoLines = function () {
-        if (this.rangeCount > 1) {
-            var ranges = this.rangeList.ranges;
-            var lastRange = ranges[ranges.length - 1];
-            var range = Range.fromPoints(ranges[0].start, lastRange.end);
-
-            this.toSingleRange();
-            this.setSelectionRange(range, lastRange.cursor == lastRange.start);
-        } else {
-            var range = this.getRange();
-            var isBackwards = this.isBackwards();
-            var startRow = range.start.row;
-            var endRow = range.end.row;
-            if (startRow == endRow) {
-                if (isBackwards)
-                    var start = range.end, end = range.start;
-                else
-                    var start = range.start, end = range.end;
-
-                this.addRange(Range.fromPoints(end, end));
-                this.addRange(Range.fromPoints(start, start));
-                return;
-            }
-
-            var rectSel = [];
-            var r = this.getLineRange(startRow, true);
-            r.start.column = range.start.column;
-            rectSel.push(r);
-
-            for (var i = startRow + 1; i < endRow; i++)
-                rectSel.push(this.getLineRange(i, true));
-
-            r = this.getLineRange(endRow, true);
-            r.end.column = range.end.column;
-            rectSel.push(r);
-
-            rectSel.forEach(this.addRange, this);
-        }
-    };
-    this.toggleBlockSelection = function () {
-        if (this.rangeCount > 1) {
-            var ranges = this.rangeList.ranges;
-            var lastRange = ranges[ranges.length - 1];
-            var range = Range.fromPoints(ranges[0].start, lastRange.end);
-
-            this.toSingleRange();
-            this.setSelectionRange(range, lastRange.cursor == lastRange.start);
-        } else {
-            var cursor = this.session.documentToScreenPosition(this.selectionLead);
-            var anchor = this.session.documentToScreenPosition(this.selectionAnchor);
-
-            var rectSel = this.rectangularRangeBlock(cursor, anchor);
-            rectSel.forEach(this.addRange, this);
-        }
-    };
-    this.rectangularRangeBlock = function(screenCursor, screenAnchor, includeEmptyLines) {
-        var rectSel = [];
-
-        var xBackwards = screenCursor.column < screenAnchor.column;
-        if (xBackwards) {
-            var startColumn = screenCursor.column;
-            var endColumn = screenAnchor.column;
-        } else {
-            var startColumn = screenAnchor.column;
-            var endColumn = screenCursor.column;
-        }
-
-        var yBackwards = screenCursor.row < screenAnchor.row;
-        if (yBackwards) {
-            var startRow = screenCursor.row;
-            var endRow = screenAnchor.row;
-        } else {
-            var startRow = screenAnchor.row;
-            var endRow = screenCursor.row;
-        }
-
-        if (startColumn < 0)
-            startColumn = 0;
-        if (startRow < 0)
-            startRow = 0;
-
-        if (startRow == endRow)
-            includeEmptyLines = true;
-
-        for (var row = startRow; row <= endRow; row++) {
-            var range = Range.fromPoints(
-                this.session.screenToDocumentPosition(row, startColumn),
-                this.session.screenToDocumentPosition(row, endColumn)
-            );
-            if (range.isEmpty()) {
-                if (docEnd && isSamePoint(range.end, docEnd))
-                    break;
-                var docEnd = range.end;
-            }
-            range.cursor = xBackwards ? range.start : range.end;
-            rectSel.push(range);
-        }
-
-        if (yBackwards)
-            rectSel.reverse();
-
-        if (!includeEmptyLines) {
-            var end = rectSel.length - 1;
-            while (rectSel[end].isEmpty() && end > 0)
-                end--;
-            if (end > 0) {
-                var start = 0;
-                while (rectSel[start].isEmpty())
-                    start++;
-            }
-            for (var i = end; i >= start; i--) {
-                if (rectSel[i].isEmpty())
-                    rectSel.splice(i, 1);
-            }
-        }
-
-        return rectSel;
-    };
-}).call(Selection.prototype);
-var Editor = require("./editor").Editor;
-(function() {
-    this.updateSelectionMarkers = function() {
-        this.renderer.updateCursor();
-        this.renderer.updateBackMarkers();
-    };
-    this.addSelectionMarker = function(orientedRange) {
-        if (!orientedRange.cursor)
-            orientedRange.cursor = orientedRange.end;
-
-        var style = this.getSelectionStyle();
-        orientedRange.marker = this.session.addMarker(orientedRange, "ace_selection", style);
-
-        this.session.$selectionMarkers.push(orientedRange);
-        this.session.selectionMarkerCount = this.session.$selectionMarkers.length;
-        return orientedRange;
-    };
-    this.removeSelectionMarker = function(range) {
-        if (!range.marker)
-            return;
-        this.session.removeMarker(range.marker);
-        var index = this.session.$selectionMarkers.indexOf(range);
-        if (index != -1)
-            this.session.$selectionMarkers.splice(index, 1);
-        this.session.selectionMarkerCount = this.session.$selectionMarkers.length;
-    };
-
-    this.removeSelectionMarkers = function(ranges) {
-        var markerList = this.session.$selectionMarkers;
-        for (var i = ranges.length; i--; ) {
-            var range = ranges[i];
-            if (!range.marker)
-                continue;
-            this.session.removeMarker(range.marker);
-            var index = markerList.indexOf(range);
-            if (index != -1)
-                markerList.splice(index, 1);
-        }
-        this.session.selectionMarkerCount = markerList.length;
-    };
-
-    this.$onAddRange = function(e) {
-        this.addSelectionMarker(e.range);
-        this.renderer.updateCursor();
-        this.renderer.updateBackMarkers();
-    };
-
-    this.$onRemoveRange = function(e) {
-        this.removeSelectionMarkers(e.ranges);
-        this.renderer.updateCursor();
-        this.renderer.updateBackMarkers();
-    };
-
-    this.$onMultiSelect = function(e) {
-        if (this.inMultiSelectMode)
-            return;
-        this.inMultiSelectMode = true;
-
-        this.setStyle("ace_multiselect");
-        this.keyBinding.addKeyboardHandler(commands.keyboardHandler);
-        this.commands.setDefaultHandler("exec", this.$onMultiSelectExec);
-
-        this.renderer.updateCursor();
-        this.renderer.updateBackMarkers();
-    };
-
-    this.$onSingleSelect = function(e) {
-        if (this.session.multiSelect.inVirtualMode)
-            return;
-        this.inMultiSelectMode = false;
-
-        this.unsetStyle("ace_multiselect");
-        this.keyBinding.removeKeyboardHandler(commands.keyboardHandler);
-
-        this.commands.removeDefaultHandler("exec", this.$onMultiSelectExec);
-        this.renderer.updateCursor();
-        this.renderer.updateBackMarkers();
-        this._emit("changeSelection");
-    };
-
-    this.$onMultiSelectExec = function(e) {
-        var command = e.command;
-        var editor = e.editor;
-        if (!editor.multiSelect)
-            return;
-        if (!command.multiSelectAction) {
-            var result = command.exec(editor, e.args || {});
-            editor.multiSelect.addRange(editor.multiSelect.toOrientedRange());
-            editor.multiSelect.mergeOverlappingRanges();
-        } else if (command.multiSelectAction == "forEach") {
-            result = editor.forEachSelection(command, e.args);
-        } else if (command.multiSelectAction == "forEachLine") {
-            result = editor.forEachSelection(command, e.args, true);
-        } else if (command.multiSelectAction == "single") {
-            editor.exitMultiSelectMode();
-            result = command.exec(editor, e.args || {});
-        } else {
-            result = command.multiSelectAction(editor, e.args || {});
-        }
-        return result;
-    };
-    this.forEachSelection = function(cmd, args, options) {
-        if (this.inVirtualSelectionMode)
-            return;
-        var keepOrder = options && options.keepOrder;
-        var $byLines = options == true || options && options.$byLines
-        var session = this.session;
-        var selection = this.selection;
-        var rangeList = selection.rangeList;
-        var ranges = (keepOrder ? selection : rangeList).ranges;
-        var result;
-
-        if (!ranges.length)
-            return cmd.exec ? cmd.exec(this, args || {}) : cmd(this, args || {});
-
-        var reg = selection._eventRegistry;
-        selection._eventRegistry = {};
-
-        var tmpSel = new Selection(session);
-        this.inVirtualSelectionMode = true;
-        for (var i = ranges.length; i--;) {
-            if ($byLines) {
-                while (i > 0 && ranges[i].start.row == ranges[i - 1].end.row)
-                    i--;
-            }
-            tmpSel.fromOrientedRange(ranges[i]);
-            tmpSel.index = i;
-            this.selection = session.selection = tmpSel;
-            var cmdResult = cmd.exec ? cmd.exec(this, args || {}) : cmd(this, args || {});
-            if (!result && cmdResult !== undefined)
-                result = cmdResult;
-            tmpSel.toOrientedRange(ranges[i]);
-        }
-        tmpSel.detach();
-
-        this.selection = session.selection = selection;
-        this.inVirtualSelectionMode = false;
-        selection._eventRegistry = reg;
-        selection.mergeOverlappingRanges();
-
-        var anim = this.renderer.$scrollAnimation;
-        this.onCursorChange();
-        this.onSelectionChange();
-        if (anim && anim.from == anim.to)
-            this.renderer.animateScrolling(anim.from);
-
-        return result;
-    };
-    this.exitMultiSelectMode = function() {
-        if (!this.inMultiSelectMode || this.inVirtualSelectionMode)
-            return;
-        this.multiSelect.toSingleRange();
-    };
-
-    this.getSelectedText = function() {
-        var text = "";
-        if (this.inMultiSelectMode && !this.inVirtualSelectionMode) {
-            var ranges = this.multiSelect.rangeList.ranges;
-            var buf = [];
-            for (var i = 0; i < ranges.length; i++) {
-                buf.push(this.session.getTextRange(ranges[i]));
-            }
-            var nl = this.session.getDocument().getNewLineCharacter();
-            text = buf.join(nl);
-            if (text.length == (buf.length - 1) * nl.length)
-                text = "";
-        } else if (!this.selection.isEmpty()) {
-            text = this.session.getTextRange(this.getSelectionRange());
-        }
-        return text;
-    };
-
-    this.$checkMultiselectChange = function(e, anchor) {
-        if (this.inMultiSelectMode && !this.inVirtualSelectionMode) {
-            var range = this.multiSelect.ranges[0];
-            if (this.multiSelect.isEmpty() && anchor == this.multiSelect.anchor)
-                return;
-            var pos = anchor == this.multiSelect.anchor
-                ? range.cursor == range.start ? range.end : range.start
-                : range.cursor;
-            if (pos.row != anchor.row
-                || this.session.$clipPositionToDocument(pos.row, pos.column).column != anchor.column)
-                this.multiSelect.toSingleRange(this.multiSelect.toOrientedRange());
-        }
-    };
-    this.findAll = function(needle, options, additive) {
-        options = options || {};
-        options.needle = needle || options.needle;
-        if (options.needle == undefined) {
-            var range = this.selection.isEmpty()
-                ? this.selection.getWordRange()
-                : this.selection.getRange();
-            options.needle = this.session.getTextRange(range);
-        }
-        this.$search.set(options);
-
-        var ranges = this.$search.findAll(this.session);
-        if (!ranges.length)
-            return 0;
-
-        this.$blockScrolling += 1;
-        var selection = this.multiSelect;
-
-        if (!additive)
-            selection.toSingleRange(ranges[0]);
-
-        for (var i = ranges.length; i--; )
-            selection.addRange(ranges[i], true);
-        if (range && selection.rangeList.rangeAtPoint(range.start))
-            selection.addRange(range, true);
-
-        this.$blockScrolling -= 1;
-
-        return ranges.length;
-    };
-    this.selectMoreLines = function(dir, skip) {
-        var range = this.selection.toOrientedRange();
-        var isBackwards = range.cursor == range.end;
-
-        var screenLead = this.session.documentToScreenPosition(range.cursor);
-        if (this.selection.$desiredColumn)
-            screenLead.column = this.selection.$desiredColumn;
-
-        var lead = this.session.screenToDocumentPosition(screenLead.row + dir, screenLead.column);
-
-        if (!range.isEmpty()) {
-            var screenAnchor = this.session.documentToScreenPosition(isBackwards ? range.end : range.start);
-            var anchor = this.session.screenToDocumentPosition(screenAnchor.row + dir, screenAnchor.column);
-        } else {
-            var anchor = lead;
-        }
-
-        if (isBackwards) {
-            var newRange = Range.fromPoints(lead, anchor);
-            newRange.cursor = newRange.start;
-        } else {
-            var newRange = Range.fromPoints(anchor, lead);
-            newRange.cursor = newRange.end;
-        }
-
-        newRange.desiredColumn = screenLead.column;
-        if (!this.selection.inMultiSelectMode) {
-            this.selection.addRange(range);
-        } else {
-            if (skip)
-                var toRemove = range.cursor;
-        }
-
-        this.selection.addRange(newRange);
-        if (toRemove)
-            this.selection.substractPoint(toRemove);
-    };
-    this.transposeSelections = function(dir) {
-        var session = this.session;
-        var sel = session.multiSelect;
-        var all = sel.ranges;
-
-        for (var i = all.length; i--; ) {
-            var range = all[i];
-            if (range.isEmpty()) {
-                var tmp = session.getWordRange(range.start.row, range.start.column);
-                range.start.row = tmp.start.row;
-                range.start.column = tmp.start.column;
-                range.end.row = tmp.end.row;
-                range.end.column = tmp.end.column;
-            }
-        }
-        sel.mergeOverlappingRanges();
-
-        var words = [];
-        for (var i = all.length; i--; ) {
-            var range = all[i];
-            words.unshift(session.getTextRange(range));
-        }
-
-        if (dir < 0)
-            words.unshift(words.pop());
-        else
-            words.push(words.shift());
-
-        for (var i = all.length; i--; ) {
-            var range = all[i];
-            var tmp = range.clone();
-            session.replace(range, words[i]);
-            range.start.row = tmp.start.row;
-            range.start.column = tmp.start.column;
-        }
-    };
-    this.selectMore = function(dir, skip, stopAtFirst) {
-        var session = this.session;
-        var sel = session.multiSelect;
-
-        var range = sel.toOrientedRange();
-        if (range.isEmpty()) {
-            range = session.getWordRange(range.start.row, range.start.column);
-            range.cursor = dir == -1 ? range.start : range.end;
-            this.multiSelect.addRange(range);
-            if (stopAtFirst)
-                return;
-        }
-        var needle = session.getTextRange(range);
-
-        var newRange = find(session, needle, dir);
-        if (newRange) {
-            newRange.cursor = dir == -1 ? newRange.start : newRange.end;
-            this.$blockScrolling += 1;
-            this.session.unfold(newRange);
-            this.multiSelect.addRange(newRange);
-            this.$blockScrolling -= 1;
-            this.renderer.scrollCursorIntoView(null, 0.5);
-        }
-        if (skip)
-            this.multiSelect.substractPoint(range.cursor);
-    };
-    this.alignCursors = function() {
-        var session = this.session;
-        var sel = session.multiSelect;
-        var ranges = sel.ranges;
-        var row = -1;
-        var sameRowRanges = ranges.filter(function(r) {
-            if (r.cursor.row == row)
-                return true;
-            row = r.cursor.row;
-        });
-
-        if (!ranges.length || sameRowRanges.length == ranges.length - 1) {
-            var range = this.selection.getRange();
-            var fr = range.start.row, lr = range.end.row;
-            var guessRange = fr == lr;
-            if (guessRange) {
-                var max = this.session.getLength();
-                var line;
-                do {
-                    line = this.session.getLine(lr);
-                } while (/[=:]/.test(line) && ++lr < max);
-                do {
-                    line = this.session.getLine(fr);
-                } while (/[=:]/.test(line) && --fr > 0);
-
-                if (fr < 0) fr = 0;
-                if (lr >= max) lr = max - 1;
-            }
-            var lines = this.session.removeFullLines(fr, lr);
-            lines = this.$reAlignText(lines, guessRange);
-            this.session.insert({row: fr, column: 0}, lines.join("\n") + "\n");
-            if (!guessRange) {
-                range.start.column = 0;
-                range.end.column = lines[lines.length - 1].length;
-            }
-            this.selection.setRange(range);
-        } else {
-            sameRowRanges.forEach(function(r) {
-                sel.substractPoint(r.cursor);
-            });
-
-            var maxCol = 0;
-            var minSpace = Infinity;
-            var spaceOffsets = ranges.map(function(r) {
-                var p = r.cursor;
-                var line = session.getLine(p.row);
-                var spaceOffset = line.substr(p.column).search(/\S/g);
-                if (spaceOffset == -1)
-                    spaceOffset = 0;
-
-                if (p.column > maxCol)
-                    maxCol = p.column;
-                if (spaceOffset < minSpace)
-                    minSpace = spaceOffset;
-                return spaceOffset;
-            });
-            ranges.forEach(function(r, i) {
-                var p = r.cursor;
-                var l = maxCol - p.column;
-                var d = spaceOffsets[i] - minSpace;
-                if (l > d)
-                    session.insert(p, lang.stringRepeat(" ", l - d));
-                else
-                    session.remove(new Range(p.row, p.column, p.row, p.column - l + d));
-
-                r.start.column = r.end.column = maxCol;
-                r.start.row = r.end.row = p.row;
-                r.cursor = r.end;
-            });
-            sel.fromOrientedRange(ranges[0]);
-            this.renderer.updateCursor();
-            this.renderer.updateBackMarkers();
-        }
-    };
-
-    this.$reAlignText = function(lines, forceLeft) {
-        var isLeftAligned = true, isRightAligned = true;
-        var startW, textW, endW;
-
-        return lines.map(function(line) {
-            var m = line.match(/(\s*)(.*?)(\s*)([=:].*)/);
-            if (!m)
-                return [line];
-
-            if (startW == null) {
-                startW = m[1].length;
-                textW = m[2].length;
-                endW = m[3].length;
-                return m;
-            }
-
-            if (startW + textW + endW != m[1].length + m[2].length + m[3].length)
-                isRightAligned = false;
-            if (startW != m[1].length)
-                isLeftAligned = false;
-
-            if (startW > m[1].length)
-                startW = m[1].length;
-            if (textW < m[2].length)
-                textW = m[2].length;
-            if (endW > m[3].length)
-                endW = m[3].length;
-
-            return m;
-        }).map(forceLeft ? alignLeft :
-            isLeftAligned ? isRightAligned ? alignRight : alignLeft : unAlign);
-
-        function spaces(n) {
-            return lang.stringRepeat(" ", n);
-        }
-
-        function alignLeft(m) {
-            return !m[2] ? m[0] : spaces(startW) + m[2]
-                + spaces(textW - m[2].length + endW)
-                + m[4].replace(/^([=:])\s+/, "$1 ");
-        }
-        function alignRight(m) {
-            return !m[2] ? m[0] : spaces(startW + textW - m[2].length) + m[2]
-                + spaces(endW, " ")
-                + m[4].replace(/^([=:])\s+/, "$1 ");
-        }
-        function unAlign(m) {
-            return !m[2] ? m[0] : spaces(startW) + m[2]
-                + spaces(endW)
-                + m[4].replace(/^([=:])\s+/, "$1 ");
-        }
-    };
-}).call(Editor.prototype);
-
-
-function isSamePoint(p1, p2) {
-    return p1.row == p2.row && p1.column == p2.column;
-}
-exports.onSessionChange = function(e) {
-    var session = e.session;
-    if (session && !session.multiSelect) {
-        session.$selectionMarkers = [];
-        session.selection.$initRangeList();
-        session.multiSelect = session.selection;
-    }
-    this.multiSelect = session && session.multiSelect;
-
-    var oldSession = e.oldSession;
-    if (oldSession) {
-        oldSession.multiSelect.off("addRange", this.$onAddRange);
-        oldSession.multiSelect.off("removeRange", this.$onRemoveRange);
-        oldSession.multiSelect.off("multiSelect", this.$onMultiSelect);
-        oldSession.multiSelect.off("singleSelect", this.$onSingleSelect);
-        oldSession.multiSelect.lead.off("change", this.$checkMultiselectChange);
-        oldSession.multiSelect.anchor.off("change", this.$checkMultiselectChange);
-    }
-
-    if (session) {
-        session.multiSelect.on("addRange", this.$onAddRange);
-        session.multiSelect.on("removeRange", this.$onRemoveRange);
-        session.multiSelect.on("multiSelect", this.$onMultiSelect);
-        session.multiSelect.on("singleSelect", this.$onSingleSelect);
-        session.multiSelect.lead.on("change", this.$checkMultiselectChange);
-        session.multiSelect.anchor.on("change", this.$checkMultiselectChange);
-    }
-
-    if (session && this.inMultiSelectMode != session.selection.inMultiSelectMode) {
-        if (session.selection.inMultiSelectMode)
-            this.$onMultiSelect();
-        else
-            this.$onSingleSelect();
-    }
-};
-function MultiSelect(editor) {
-    if (editor.$multiselectOnSessionChange)
-        return;
-    editor.$onAddRange = editor.$onAddRange.bind(editor);
-    editor.$onRemoveRange = editor.$onRemoveRange.bind(editor);
-    editor.$onMultiSelect = editor.$onMultiSelect.bind(editor);
-    editor.$onSingleSelect = editor.$onSingleSelect.bind(editor);
-    editor.$multiselectOnSessionChange = exports.onSessionChange.bind(editor);
-    editor.$checkMultiselectChange = editor.$checkMultiselectChange.bind(editor);
-
-    editor.$multiselectOnSessionChange(editor);
-    editor.on("changeSession", editor.$multiselectOnSessionChange);
-
-    editor.on("mousedown", onMouseDown);
-    editor.commands.addCommands(commands.defaultCommands);
-
-    addAltCursorListeners(editor);
-}
-
-function addAltCursorListeners(editor){
-    var el = editor.textInput.getElement();
-    var altCursor = false;
-    event.addListener(el, "keydown", function(e) {
-        var altDown = e.keyCode == 18 && !(e.ctrlKey || e.shiftKey || e.metaKey);
-        if (editor.$blockSelectEnabled && altDown) {
-            if (!altCursor) {
-                editor.renderer.setMouseCursor("crosshair");
-                altCursor = true;
-            }
-        } else if (altCursor) {
-            reset();
-        }
-    });
-
-    event.addListener(el, "keyup", reset);
-    event.addListener(el, "blur", reset);
-    function reset(e) {
-        if (altCursor) {
-            editor.renderer.setMouseCursor("");
-            altCursor = false;
-        }
-    }
-}
-
-exports.MultiSelect = MultiSelect;
-
-
-require("./config").defineOptions(Editor.prototype, "editor", {
-    enableMultiselect: {
-        set: function(val) {
-            MultiSelect(this);
-            if (val) {
-                this.on("changeSession", this.$multiselectOnSessionChange);
-                this.on("mousedown", onMouseDown);
-            } else {
-                this.off("changeSession", this.$multiselectOnSessionChange);
-                this.off("mousedown", onMouseDown);
-            }
-        },
-        value: true
-    },
-    enableBlockSelect: {
-        set: function(val) {
-            this.$blockSelectEnabled = val;
-        },
-        value: true
-    }
-});
-
-
-
-});
-
-ace.define("ace/mode/folding/fold_mode",["require","exports","module","ace/range"], function(require, exports, module) {
-"use strict";
-
-var Range = require("../../range").Range;
-
-var FoldMode = exports.FoldMode = function() {};
-
-(function() {
-
-    this.foldingStartMarker = null;
-    this.foldingStopMarker = null;
-    this.getFoldWidget = function(session, foldStyle, row) {
-        var line = session.getLine(row);
-        if (this.foldingStartMarker.test(line))
-            return "start";
-        if (foldStyle == "markbeginend"
-                && this.foldingStopMarker
-                && this.foldingStopMarker.test(line))
-            return "end";
-        return "";
-    };
-
-    this.getFoldWidgetRange = function(session, foldStyle, row) {
-        return null;
-    };
-
-    this.indentationBlock = function(session, row, column) {
-        var re = /\S/;
-        var line = session.getLine(row);
-        var startLevel = line.search(re);
-        if (startLevel == -1)
-            return;
-
-        var startColumn = column || line.length;
-        var maxRow = session.getLength();
-        var startRow = row;
-        var endRow = row;
-
-        while (++row < maxRow) {
-            var level = session.getLine(row).search(re);
-
-            if (level == -1)
-                continue;
-
-            if (level <= startLevel)
-                break;
-
-            endRow = row;
-        }
-
-        if (endRow > startRow) {
-            var endColumn = session.getLine(endRow).length;
-            return new Range(startRow, startColumn, endRow, endColumn);
-        }
-    };
-
-    this.openingBracketBlock = function(session, bracket, row, column, typeRe) {
-        var start = {row: row, column: column + 1};
-        var end = session.$findClosingBracket(bracket, start, typeRe);
-        if (!end)
-            return;
-
-        var fw = session.foldWidgets[end.row];
-        if (fw == null)
-            fw = session.getFoldWidget(end.row);
-
-        if (fw == "start" && end.row > start.row) {
-            end.row --;
-            end.column = session.getLine(end.row).length;
-        }
-        return Range.fromPoints(start, end);
-    };
-
-    this.closingBracketBlock = function(session, bracket, row, column, typeRe) {
-        var end = {row: row, column: column};
-        var start = session.$findOpeningBracket(bracket, end);
-
-        if (!start)
-            return;
-
-        start.column++;
-        end.column--;
-
-        return  Range.fromPoints(start, end);
-    };
-}).call(FoldMode.prototype);
-
-});
-
-ace.define("ace/theme/textmate",["require","exports","module","ace/lib/dom"], function(require, exports, module) {
-"use strict";
-
-exports.isDark = false;
-exports.cssClass = "ace-tm";
-exports.cssText = ".ace-tm .ace_gutter {\
-background: #f0f0f0;\
-color: #333;\
-}\
-.ace-tm .ace_print-margin {\
-width: 1px;\
-background: #e8e8e8;\
-}\
-.ace-tm .ace_fold {\
-background-color: #6B72E6;\
-}\
-.ace-tm {\
-background-color: #FFFFFF;\
-color: black;\
-}\
-.ace-tm .ace_cursor {\
-color: black;\
-}\
-.ace-tm .ace_invisible {\
-color: rgb(191, 191, 191);\
-}\
-.ace-tm .ace_storage,\
-.ace-tm .ace_keyword {\
-color: blue;\
-}\
-.ace-tm .ace_constant {\
-color: rgb(197, 6, 11);\
-}\
-.ace-tm .ace_constant.ace_buildin {\
-color: rgb(88, 72, 246);\
-}\
-.ace-tm .ace_constant.ace_language {\
-color: rgb(88, 92, 246);\
-}\
-.ace-tm .ace_constant.ace_library {\
-color: rgb(6, 150, 14);\
-}\
-.ace-tm .ace_invalid {\
-background-color: rgba(255, 0, 0, 0.1);\
-color: red;\
-}\
-.ace-tm .ace_support.ace_function {\
-color: rgb(60, 76, 114);\
-}\
-.ace-tm .ace_support.ace_constant {\
-color: rgb(6, 150, 14);\
-}\
-.ace-tm .ace_support.ace_type,\
-.ace-tm .ace_support.ace_class {\
-color: rgb(109, 121, 222);\
-}\
-.ace-tm .ace_keyword.ace_operator {\
-color: rgb(104, 118, 135);\
-}\
-.ace-tm .ace_string {\
-color: rgb(3, 106, 7);\
-}\
-.ace-tm .ace_comment {\
-color: rgb(76, 136, 107);\
-}\
-.ace-tm .ace_comment.ace_doc {\
-color: rgb(0, 102, 255);\
-}\
-.ace-tm .ace_comment.ace_doc.ace_tag {\
-color: rgb(128, 159, 191);\
-}\
-.ace-tm .ace_constant.ace_numeric {\
-color: rgb(0, 0, 205);\
-}\
-.ace-tm .ace_variable {\
-color: rgb(49, 132, 149);\
-}\
-.ace-tm .ace_xml-pe {\
-color: rgb(104, 104, 91);\
-}\
-.ace-tm .ace_entity.ace_name.ace_function {\
-color: #0000A2;\
-}\
-.ace-tm .ace_heading {\
-color: rgb(12, 7, 255);\
-}\
-.ace-tm .ace_list {\
-color:rgb(185, 6, 144);\
-}\
-.ace-tm .ace_meta.ace_tag {\
-color:rgb(0, 22, 142);\
-}\
-.ace-tm .ace_string.ace_regex {\
-color: rgb(255, 0, 0)\
-}\
-.ace-tm .ace_marker-layer .ace_selection {\
-background: rgb(181, 213, 255);\
-}\
-.ace-tm.ace_multiselect .ace_selection.ace_start {\
-box-shadow: 0 0 3px 0px white;\
-}\
-.ace-tm .ace_marker-layer .ace_step {\
-background: rgb(252, 255, 0);\
-}\
-.ace-tm .ace_marker-layer .ace_stack {\
-background: rgb(164, 229, 101);\
-}\
-.ace-tm .ace_marker-layer .ace_bracket {\
-margin: -1px 0 0 -1px;\
-border: 1px solid rgb(192, 192, 192);\
-}\
-.ace-tm .ace_marker-layer .ace_active-line {\
-background: rgba(0, 0, 0, 0.07);\
-}\
-.ace-tm .ace_gutter-active-line {\
-background-color : #dcdcdc;\
-}\
-.ace-tm .ace_marker-layer .ace_selected-word {\
-background: rgb(250, 250, 255);\
-border: 1px solid rgb(200, 200, 250);\
-}\
-.ace-tm .ace_indent-guide {\
-background: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAACCAYAAACZgbYnAAAAE0lEQVQImWP4////f4bLly//BwAmVgd1/w11/gAAAABJRU5ErkJggg==\") right repeat-y;\
-}\
-";
-
-var dom = require("../lib/dom");
-dom.importCssString(exports.cssText, exports.cssClass);
-});
-
-ace.define("ace/line_widgets",["require","exports","module","ace/lib/oop","ace/lib/dom","ace/range"], function(require, exports, module) {
-"use strict";
-
-var oop = require("./lib/oop");
-var dom = require("./lib/dom");
-var Range = require("./range").Range;
-
-
-function LineWidgets(session) {
-    this.session = session;
-    this.session.widgetManager = this;
-    this.session.getRowLength = this.getRowLength;
-    this.session.$getWidgetScreenLength = this.$getWidgetScreenLength;
-    this.updateOnChange = this.updateOnChange.bind(this);
-    this.renderWidgets = this.renderWidgets.bind(this);
-    this.measureWidgets = this.measureWidgets.bind(this);
-    this.session._changedWidgets = [];
-    this.$onChangeEditor = this.$onChangeEditor.bind(this);
-
-    this.session.on("change", this.updateOnChange);
-    this.session.on("changeFold", this.updateOnFold);
-    this.session.on("changeEditor", this.$onChangeEditor);
-}
-
-(function() {
-    this.getRowLength = function(row) {
-        var h;
-        if (this.lineWidgets)
-            h = this.lineWidgets[row] && this.lineWidgets[row].rowCount || 0;
-        else
-            h = 0;
-        if (!this.$useWrapMode || !this.$wrapData[row]) {
-            return 1 + h;
-        } else {
-            return this.$wrapData[row].length + 1 + h;
-        }
-    };
-
-    this.$getWidgetScreenLength = function() {
-        var screenRows = 0;
-        this.lineWidgets.forEach(function(w){
-            if (w && w.rowCount && !w.hidden)
-                screenRows += w.rowCount;
-        });
-        return screenRows;
-    };
-
-    this.$onChangeEditor = function(e) {
-        this.attach(e.editor);
-    };
-
-    this.attach = function(editor) {
-        if (editor  && editor.widgetManager && editor.widgetManager != this)
-            editor.widgetManager.detach();
-
-        if (this.editor == editor)
-            return;
-
-        this.detach();
-        this.editor = editor;
-
-        if (editor) {
-            editor.widgetManager = this;
-            editor.renderer.on("beforeRender", this.measureWidgets);
-            editor.renderer.on("afterRender", this.renderWidgets);
-        }
-    };
-    this.detach = function(e) {
-        var editor = this.editor;
-        if (!editor)
-            return;
-
-        this.editor = null;
-        editor.widgetManager = null;
-
-        editor.renderer.off("beforeRender", this.measureWidgets);
-        editor.renderer.off("afterRender", this.renderWidgets);
-        var lineWidgets = this.session.lineWidgets;
-        lineWidgets && lineWidgets.forEach(function(w) {
-            if (w && w.el && w.el.parentNode) {
-                w._inDocument = false;
-                w.el.parentNode.removeChild(w.el);
-            }
-        });
-    };
-
-    this.updateOnFold = function(e, session) {
-        var lineWidgets = session.lineWidgets;
-        if (!lineWidgets || !e.action)
-            return;
-        var fold = e.data;
-        var start = fold.start.row;
-        var end = fold.end.row;
-        var hide = e.action == "add";
-        for (var i = start + 1; i < end; i++) {
-            if (lineWidgets[i])
-                lineWidgets[i].hidden = hide;
-        }
-        if (lineWidgets[end]) {
-            if (hide) {
-                if (!lineWidgets[start])
-                    lineWidgets[start] = lineWidgets[end];
-                else
-                    lineWidgets[end].hidden = hide;
-            } else {
-                if (lineWidgets[start] == lineWidgets[end])
-                    lineWidgets[start] = undefined;
-                lineWidgets[end].hidden = hide;
-            }
-        }
-    };
-
-    this.updateOnChange = function(delta) {
-        var lineWidgets = this.session.lineWidgets;
-        if (!lineWidgets) return;
-
-        var startRow = delta.start.row;
-        var len = delta.end.row - startRow;
-
-        if (len === 0) {
-        } else if (delta.action == 'remove') {
-            var removed = lineWidgets.splice(startRow + 1, len);
-            removed.forEach(function(w) {
-                w && this.removeLineWidget(w);
-            }, this);
-            this.$updateRows();
-        } else {
-            var args = new Array(len);
-            args.unshift(startRow, 0);
-            lineWidgets.splice.apply(lineWidgets, args);
-            this.$updateRows();
-        }
-    };
-
-    this.$updateRows = function() {
-        var lineWidgets = this.session.lineWidgets;
-        if (!lineWidgets) return;
-        var noWidgets = true;
-        lineWidgets.forEach(function(w, i) {
-            if (w) {
-                noWidgets = false;
-                w.row = i;
-                while (w.$oldWidget) {
-                    w.$oldWidget.row = i;
-                    w = w.$oldWidget;
-                }
-            }
-        });
-        if (noWidgets)
-            this.session.lineWidgets = null;
-    };
-
-    this.addLineWidget = function(w) {
-        if (!this.session.lineWidgets)
-            this.session.lineWidgets = new Array(this.session.getLength());
-
-        var old = this.session.lineWidgets[w.row];
-        if (old) {
-            w.$oldWidget = old;
-            if (old.el && old.el.parentNode) {
-                old.el.parentNode.removeChild(old.el);
-                old._inDocument = false;
-            }
-        }
-
-        this.session.lineWidgets[w.row] = w;
-
-        w.session = this.session;
-
-        var renderer = this.editor.renderer;
-        if (w.html && !w.el) {
-            w.el = dom.createElement("div");
-            w.el.innerHTML = w.html;
-        }
-        if (w.el) {
-            dom.addCssClass(w.el, "ace_lineWidgetContainer");
-            w.el.style.position = "absolute";
-            w.el.style.zIndex = 5;
-            renderer.container.appendChild(w.el);
-            w._inDocument = true;
-        }
-
-        if (!w.coverGutter) {
-            w.el.style.zIndex = 3;
-        }
-        if (!w.pixelHeight) {
-            w.pixelHeight = w.el.offsetHeight;
-        }
-        if (w.rowCount == null) {
-            w.rowCount = w.pixelHeight / renderer.layerConfig.lineHeight;
-        }
-
-        var fold = this.session.getFoldAt(w.row, 0);
-        w.$fold = fold;
-        if (fold) {
-            var lineWidgets = this.session.lineWidgets;
-            if (w.row == fold.end.row && !lineWidgets[fold.start.row])
-                lineWidgets[fold.start.row] = w;
-            else
-                w.hidden = true;
-        }
-
-        this.session._emit("changeFold", {data:{start:{row: w.row}}});
-
-        this.$updateRows();
-        this.renderWidgets(null, renderer);
-        this.onWidgetChanged(w);
-        return w;
-    };
-
-    this.removeLineWidget = function(w) {
-        w._inDocument = false;
-        w.session = null;
-        if (w.el && w.el.parentNode)
-            w.el.parentNode.removeChild(w.el);
-        if (w.editor && w.editor.destroy) try {
-            w.editor.destroy();
-        } catch(e){}
-        if (this.session.lineWidgets) {
-            var w1 = this.session.lineWidgets[w.row]
-            if (w1 == w) {
-                this.session.lineWidgets[w.row] = w.$oldWidget;
-                if (w.$oldWidget)
-                    this.onWidgetChanged(w.$oldWidget);
-            } else {
-                while (w1) {
-                    if (w1.$oldWidget == w) {
-                        w1.$oldWidget = w.$oldWidget;
-                        break;
-                    }
-                    w1 = w1.$oldWidget;
-                }
-            }
-        }
-        this.session._emit("changeFold", {data:{start:{row: w.row}}});
-        this.$updateRows();
-    };
-
-    this.getWidgetsAtRow = function(row) {
-        var lineWidgets = this.session.lineWidgets;
-        var w = lineWidgets && lineWidgets[row];
-        var list = [];
-        while (w) {
-            list.push(w);
-            w = w.$oldWidget;
-        }
-        return list;
-    };
-
-    this.onWidgetChanged = function(w) {
-        this.session._changedWidgets.push(w);
-        this.editor && this.editor.renderer.updateFull();
-    };
-
-    this.measureWidgets = function(e, renderer) {
-        var changedWidgets = this.session._changedWidgets;
-        var config = renderer.layerConfig;
-
-        if (!changedWidgets || !changedWidgets.length) return;
-        var min = Infinity;
-        for (var i = 0; i < changedWidgets.length; i++) {
-            var w = changedWidgets[i];
-            if (!w || !w.el) continue;
-            if (w.session != this.session) continue;
-            if (!w._inDocument) {
-                if (this.session.lineWidgets[w.row] != w)
-                    continue;
-                w._inDocument = true;
-                renderer.container.appendChild(w.el);
-            }
-
-            w.h = w.el.offsetHeight;
-
-            if (!w.fixedWidth) {
-                w.w = w.el.offsetWidth;
-                w.screenWidth = Math.ceil(w.w / config.characterWidth);
-            }
-
-            var rowCount = w.h / config.lineHeight;
-            if (w.coverLine) {
-                rowCount -= this.session.getRowLineCount(w.row);
-                if (rowCount < 0)
-                    rowCount = 0;
-            }
-            if (w.rowCount != rowCount) {
-                w.rowCount = rowCount;
-                if (w.row < min)
-                    min = w.row;
-            }
-        }
-        if (min != Infinity) {
-            this.session._emit("changeFold", {data:{start:{row: min}}});
-            this.session.lineWidgetWidth = null;
-        }
-        this.session._changedWidgets = [];
-    };
-
-    this.renderWidgets = function(e, renderer) {
-        var config = renderer.layerConfig;
-        var lineWidgets = this.session.lineWidgets;
-        if (!lineWidgets)
-            return;
-        var first = Math.min(this.firstRow, config.firstRow);
-        var last = Math.max(this.lastRow, config.lastRow, lineWidgets.length);
-
-        while (first > 0 && !lineWidgets[first])
-            first--;
-
-        this.firstRow = config.firstRow;
-        this.lastRow = config.lastRow;
-
-        renderer.$cursorLayer.config = config;
-        for (var i = first; i <= last; i++) {
-            var w = lineWidgets[i];
-            if (!w || !w.el) continue;
-            if (w.hidden) {
-                w.el.style.top = -100 - (w.pixelHeight || 0) + "px";
-                continue;
-            }
-            if (!w._inDocument) {
-                w._inDocument = true;
-                renderer.container.appendChild(w.el);
-            }
-            var top = renderer.$cursorLayer.getPixelPosition({row: i, column:0}, true).top;
-            if (!w.coverLine)
-                top += config.lineHeight * this.session.getRowLineCount(w.row);
-            w.el.style.top = top - config.offset + "px";
-
-            var left = w.coverGutter ? 0 : renderer.gutterWidth;
-            if (!w.fixedWidth)
-                left -= renderer.scrollLeft;
-            w.el.style.left = left + "px";
-
-            if (w.fullWidth && w.screenWidth) {
-                w.el.style.minWidth = config.width + 2 * config.padding + "px";
-            }
-
-            if (w.fixedWidth) {
-                w.el.style.right = renderer.scrollBar.getWidth() + "px";
-            } else {
-                w.el.style.right = "";
-            }
-        }
-    };
-
-}).call(LineWidgets.prototype);
-
-
-exports.LineWidgets = LineWidgets;
-
-});
-
-ace.define("ace/ext/error_marker",["require","exports","module","ace/line_widgets","ace/lib/dom","ace/range"], function(require, exports, module) {
-"use strict";
-var LineWidgets = require("../line_widgets").LineWidgets;
-var dom = require("../lib/dom");
-var Range = require("../range").Range;
-
-function binarySearch(array, needle, comparator) {
-    var first = 0;
-    var last = array.length - 1;
-
-    while (first <= last) {
-        var mid = (first + last) >> 1;
-        var c = comparator(needle, array[mid]);
-        if (c > 0)
-            first = mid + 1;
-        else if (c < 0)
-            last = mid - 1;
-        else
-            return mid;
-    }
-    return -(first + 1);
-}
-
-function findAnnotations(session, row, dir) {
-    var annotations = session.getAnnotations().sort(Range.comparePoints);
-    if (!annotations.length)
-        return;
-
-    var i = binarySearch(annotations, {row: row, column: -1}, Range.comparePoints);
-    if (i < 0)
-        i = -i - 1;
-
-    if (i >= annotations.length)
-        i = dir > 0 ? 0 : annotations.length - 1;
-    else if (i === 0 && dir < 0)
-        i = annotations.length - 1;
-
-    var annotation = annotations[i];
-    if (!annotation || !dir)
-        return;
-
-    if (annotation.row === row) {
-        do {
-            annotation = annotations[i += dir];
-        } while (annotation && annotation.row === row);
-        if (!annotation)
-            return annotations.slice();
-    }
-
-
-    var matched = [];
-    row = annotation.row;
-    do {
-        matched[dir < 0 ? "unshift" : "push"](annotation);
-        annotation = annotations[i += dir];
-    } while (annotation && annotation.row == row);
-    return matched.length && matched;
-}
-
-exports.showErrorMarker = function(editor, dir) {
-    var session = editor.session;
-    if (!session.widgetManager) {
-        session.widgetManager = new LineWidgets(session);
-        session.widgetManager.attach(editor);
-    }
-
-    var pos = editor.getCursorPosition();
-    var row = pos.row;
-    var oldWidget = session.widgetManager.getWidgetsAtRow(row).filter(function(w) {
-        return w.type == "errorMarker";
-    })[0];
-    if (oldWidget) {
-        oldWidget.destroy();
-    } else {
-        row -= dir;
-    }
-    var annotations = findAnnotations(session, row, dir);
-    var gutterAnno;
-    if (annotations) {
-        var annotation = annotations[0];
-        pos.column = (annotation.pos && typeof annotation.column != "number"
-            ? annotation.pos.sc
-            : annotation.column) || 0;
-        pos.row = annotation.row;
-        gutterAnno = editor.renderer.$gutterLayer.$annotations[pos.row];
-    } else if (oldWidget) {
-        return;
-    } else {
-        gutterAnno = {
-            text: ["Looks good!"],
-            className: "ace_ok"
-        };
-    }
-    editor.session.unfold(pos.row);
-    editor.selection.moveToPosition(pos);
-
-    var w = {
-        row: pos.row,
-        fixedWidth: true,
-        coverGutter: true,
-        el: dom.createElement("div"),
-        type: "errorMarker"
-    };
-    var el = w.el.appendChild(dom.createElement("div"));
-    var arrow = w.el.appendChild(dom.createElement("div"));
-    arrow.className = "error_widget_arrow " + gutterAnno.className;
-
-    var left = editor.renderer.$cursorLayer
-        .getPixelPosition(pos).left;
-    arrow.style.left = left + editor.renderer.gutterWidth - 5 + "px";
-
-    w.el.className = "error_widget_wrapper";
-    el.className = "error_widget " + gutterAnno.className;
-    el.innerHTML = gutterAnno.text.join("<br>");
-
-    el.appendChild(dom.createElement("div"));
-
-    var kb = function(_, hashId, keyString) {
-        if (hashId === 0 && (keyString === "esc" || keyString === "return")) {
-            w.destroy();
-            return {command: "null"};
-        }
-    };
-
-    w.destroy = function() {
-        if (editor.$mouseHandler.isMousePressed)
-            return;
-        editor.keyBinding.removeKeyboardHandler(kb);
-        session.widgetManager.removeLineWidget(w);
-        editor.off("changeSelection", w.destroy);
-        editor.off("changeSession", w.destroy);
-        editor.off("mouseup", w.destroy);
-        editor.off("change", w.destroy);
-    };
-
-    editor.keyBinding.addKeyboardHandler(kb);
-    editor.on("changeSelection", w.destroy);
-    editor.on("changeSession", w.destroy);
-    editor.on("mouseup", w.destroy);
-    editor.on("change", w.destroy);
-
-    editor.session.widgetManager.addLineWidget(w);
-
-    w.el.onmousedown = editor.focus.bind(editor);
-
-    editor.renderer.scrollCursorIntoView(null, 0.5, {bottom: w.el.offsetHeight});
-};
-
-
-dom.importCssString("\
-    .error_widget_wrapper {\
-        background: inherit;\
-        color: inherit;\
-        border:none\
-    }\
-    .error_widget {\
-        border-top: solid 2px;\
-        border-bottom: solid 2px;\
-        margin: 5px 0;\
-        padding: 10px 40px;\
-        white-space: pre-wrap;\
-    }\
-    .error_widget.ace_error, .error_widget_arrow.ace_error{\
-        border-color: #ff5a5a\
-    }\
-    .error_widget.ace_warning, .error_widget_arrow.ace_warning{\
-        border-color: #F1D817\
-    }\
-    .error_widget.ace_info, .error_widget_arrow.ace_info{\
-        border-color: #5a5a5a\
-    }\
-    .error_widget.ace_ok, .error_widget_arrow.ace_ok{\
-        border-color: #5aaa5a\
-    }\
-    .error_widget_arrow {\
-        position: absolute !important;\
-        border: solid 5px;\
-        border-top-color: transparent!important;\
-        border-right-color: transparent!important;\
-        border-left-color: transparent!important;\
-        top: -5px;\
-    }\
-", "");
-
-});
-
-ace.define("ace/ace",["require","exports","module","ace/lib/fixoldbrowsers","ace/lib/dom","ace/lib/event","ace/editor","ace/edit_session","ace/undomanager","ace/virtual_renderer","ace/worker/worker_client","ace/keyboard/hash_handler","ace/placeholder","ace/multi_select","ace/mode/folding/fold_mode","ace/theme/textmate","ace/ext/error_marker","ace/config"], function(require, exports, module) {
-"use strict";
-
-require("./lib/fixoldbrowsers");
-
-var dom = require("./lib/dom");
-var event = require("./lib/event");
-
-var Editor = require("./editor").Editor;
-var EditSession = require("./edit_session").EditSession;
-var UndoManager = require("./undomanager").UndoManager;
-var Renderer = require("./virtual_renderer").VirtualRenderer;
-require("./worker/worker_client");
-require("./keyboard/hash_handler");
-require("./placeholder");
-require("./multi_select");
-require("./mode/folding/fold_mode");
-require("./theme/textmate");
-require("./ext/error_marker");
-
-exports.config = require("./config");
-exports.require = require;
-exports.edit = function(el) {
-    if (typeof el == "string") {
-        var _id = el;
-        el = document.getElementById(_id);
-        if (!el)
-            throw new Error("ace.edit can't find div #" + _id);
-    }
-
-    if (el && el.env && el.env.editor instanceof Editor)
-        return el.env.editor;
-
-    var value = "";
-    if (el && /input|textarea/i.test(el.tagName)) {
-        var oldNode = el;
-        value = oldNode.value;
-        el = dom.createElement("pre");
-        oldNode.parentNode.replaceChild(el, oldNode);
-    } else if (el) {
-        value = dom.getInnerText(el);
-        el.innerHTML = "";
-    }
-
-    var doc = exports.createEditSession(value);
-
-    var editor = new Editor(new Renderer(el));
-    editor.setSession(doc);
-
-    var env = {
-        document: doc,
-        editor: editor,
-        onResize: editor.resize.bind(editor, null)
-    };
-    if (oldNode) env.textarea = oldNode;
-    event.addListener(window, "resize", env.onResize);
-    editor.on("destroy", function() {
-        event.removeListener(window, "resize", env.onResize);
-        env.editor.container.env = null; // prevent memory leak on old ie
-    });
-    editor.container.env = editor.env = env;
-    return editor;
-};
-exports.createEditSession = function(text, mode) {
-    var doc = new EditSession(text, mode);
-    doc.setUndoManager(new UndoManager());
-    return doc;
-}
-exports.EditSession = EditSession;
-exports.UndoManager = UndoManager;
-exports.version = "1.2.3";
-});
-            (function() {
-                ace.require(["ace/ace"], function(a) {
-                    a && a.config.init(true);
-                    if (!window.ace)
-                        window.ace = a;
-                    for (var key in a) if (a.hasOwnProperty(key))
-                        window.ace[key] = a[key];
-                });
-            })();
-
-
-
-
-
-            ace.define("ace/mode/doc_comment_highlight_rules",["require","exports","module","ace/lib/oop","ace/mode/text_highlight_rules"], function(require, exports, module) {
-            "use strict";
-
-            var oop = require("../lib/oop");
-            var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
-
-            var DocCommentHighlightRules = function() {
-                this.$rules = {
-                    "start" : [ {
-                        token : "comment.doc.tag",
-                        regex : "@[\\w\\d_]+" // TODO: fix email addresses
-                    },
-                    DocCommentHighlightRules.getTagRule(),
-                    {
-                        defaultToken : "comment.doc",
-                        caseInsensitive: true
-                    }]
-                };
-            };
-
-            oop.inherits(DocCommentHighlightRules, TextHighlightRules);
-
-            DocCommentHighlightRules.getTagRule = function(start) {
-                return {
-                    token : "comment.doc.tag.storage.type",
-                    regex : "\\b(?:TODO|FIXME|XXX|HACK)\\b"
-                };
-            }
-
-            DocCommentHighlightRules.getStartRule = function(start) {
-                return {
-                    token : "comment.doc", // doc comment
-                    regex : "\\/\\*(?=\\*)",
-                    next  : start
-                };
-            };
-
-            DocCommentHighlightRules.getEndRule = function (start) {
-                return {
-                    token : "comment.doc", // closing comment
-                    regex : "\\*\\/",
-                    next  : start
-                };
-            };
-
-
-            exports.DocCommentHighlightRules = DocCommentHighlightRules;
-
-            });
-
-            ace.define("ace/mode/javascript_highlight_rules",["require","exports","module","ace/lib/oop","ace/mode/doc_comment_highlight_rules","ace/mode/text_highlight_rules"], function(require, exports, module) {
-            "use strict";
-
-            var oop = require("../lib/oop");
-            var DocCommentHighlightRules = require("./doc_comment_highlight_rules").DocCommentHighlightRules;
-            var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
-            var identifierRe = "[a-zA-Z\\$_\u00a1-\uffff][a-zA-Z\\d\\$_\u00a1-\uffff]*";
-
-            var JavaScriptHighlightRules = function(options) {
-                var keywordMapper = this.createKeywordMapper({
-                    "variable.language":
-                        "Array|Boolean|Date|Function|Iterator|Number|Object|RegExp|String|Proxy|"  + // Constructors
-                        "Namespace|QName|XML|XMLList|"                                             + // E4X
-                        "ArrayBuffer|Float32Array|Float64Array|Int16Array|Int32Array|Int8Array|"   +
-                        "Uint16Array|Uint32Array|Uint8Array|Uint8ClampedArray|"                    +
-                        "Error|EvalError|InternalError|RangeError|ReferenceError|StopIteration|"   + // Errors
-                        "SyntaxError|TypeError|URIError|"                                          +
-                        "decodeURI|decodeURIComponent|encodeURI|encodeURIComponent|eval|isFinite|" + // Non-constructor functions
-                        "isNaN|parseFloat|parseInt|"                                               +
-                        "JSON|Math|"                                                               + // Other
-                        "this|arguments|prototype|window|document"                                 , // Pseudo
-                    "keyword":
-                        "const|yield|import|get|set|async|await|" +
-                        "break|case|catch|continue|default|delete|do|else|finally|for|function|" +
-                        "if|in|instanceof|new|return|switch|throw|try|typeof|let|var|while|with|debugger|" +
-                        "__parent__|__count__|escape|unescape|with|__proto__|" +
-                        "class|enum|extends|super|export|implements|private|public|interface|package|protected|static",
-                    "storage.type":
-                        "const|let|var|function",
-                    "constant.language":
-                        "null|Infinity|NaN|undefined",
-                    "support.function":
-                        "alert",
-                    "constant.language.boolean": "true|false"
-                }, "identifier");
-                var kwBeforeRe = "case|do|else|finally|in|instanceof|return|throw|try|typeof|yield|void";
-
-                var escapedRe = "\\\\(?:x[0-9a-fA-F]{2}|" + // hex
-                    "u[0-9a-fA-F]{4}|" + // unicode
-                    "u{[0-9a-fA-F]{1,6}}|" + // es6 unicode
-                    "[0-2][0-7]{0,2}|" + // oct
-                    "3[0-7][0-7]?|" + // oct
-                    "[4-7][0-7]?|" + //oct
-                    ".)";
-
-                this.$rules = {
-                    "no_regex" : [
-                        DocCommentHighlightRules.getStartRule("doc-start"),
-                        comments("no_regex"),
-                        {
-                            token : "string",
-                            regex : "'(?=.)",
-                            next  : "qstring"
-                        }, {
-                            token : "string",
-                            regex : '"(?=.)',
-                            next  : "qqstring"
-                        }, {
-                            token : "constant.numeric", // hex
-                            regex : /0(?:[xX][0-9a-fA-F]+|[bB][01]+)\b/
-                        }, {
-                            token : "constant.numeric", // float
-                            regex : /[+-]?\d[\d_]*(?:(?:\.\d*)?(?:[eE][+-]?\d+)?)?\b/
-                        }, {
-                            token : [
-                                "storage.type", "punctuation.operator", "support.function",
-                                "punctuation.operator", "entity.name.function", "text","keyword.operator"
-                            ],
-                            regex : "(" + identifierRe + ")(\\.)(prototype)(\\.)(" + identifierRe +")(\\s*)(=)",
-                            next: "function_arguments"
-                        }, {
-                            token : [
-                                "storage.type", "punctuation.operator", "entity.name.function", "text",
-                                "keyword.operator", "text", "storage.type", "text", "paren.lparen"
-                            ],
-                            regex : "(" + identifierRe + ")(\\.)(" + identifierRe +")(\\s*)(=)(\\s*)(function)(\\s*)(\\()",
-                            next: "function_arguments"
-                        }, {
-                            token : [
-                                "entity.name.function", "text", "keyword.operator", "text", "storage.type",
-                                "text", "paren.lparen"
-                            ],
-                            regex : "(" + identifierRe +")(\\s*)(=)(\\s*)(function)(\\s*)(\\()",
-                            next: "function_arguments"
-                        }, {
-                            token : [
-                                "storage.type", "punctuation.operator", "entity.name.function", "text",
-                                "keyword.operator", "text",
-                                "storage.type", "text", "entity.name.function", "text", "paren.lparen"
-                            ],
-                            regex : "(" + identifierRe + ")(\\.)(" + identifierRe +")(\\s*)(=)(\\s*)(function)(\\s+)(\\w+)(\\s*)(\\()",
-                            next: "function_arguments"
-                        }, {
-                            token : [
-                                "storage.type", "text", "entity.name.function", "text", "paren.lparen"
-                            ],
-                            regex : "(function)(\\s+)(" + identifierRe + ")(\\s*)(\\()",
-                            next: "function_arguments"
-                        }, {
-                            token : [
-                                "entity.name.function", "text", "punctuation.operator",
-                                "text", "storage.type", "text", "paren.lparen"
-                            ],
-                            regex : "(" + identifierRe + ")(\\s*)(:)(\\s*)(function)(\\s*)(\\()",
-                            next: "function_arguments"
-                        }, {
-                            token : [
-                                "text", "text", "storage.type", "text", "paren.lparen"
-                            ],
-                            regex : "(:)(\\s*)(function)(\\s*)(\\()",
-                            next: "function_arguments"
-                        }, {
-                            token : "keyword",
-                            regex : "(?:" + kwBeforeRe + ")\\b",
-                            next : "start"
-                        }, {
-                            token : ["support.constant"],
-                            regex : /that\b/
-                        }, {
-                            token : ["storage.type", "punctuation.operator", "support.function.firebug"],
-                            regex : /(console)(\.)(warn|info|log|error|time|trace|timeEnd|assert)\b/
-                        }, {
-                            token : keywordMapper,
-                            regex : identifierRe
-                        }, {
-                            token : "punctuation.operator",
-                            regex : /[.](?![.])/,
-                            next  : "property"
-                        }, {
-                            token : "keyword.operator",
-                            regex : /--|\+\+|\.{3}|===|==|=|!=|!==|<+=?|>+=?|!|&&|\|\||\?\:|[!$%&*+\-~\/^]=?/,
-                            next  : "start"
-                        }, {
-                            token : "punctuation.operator",
-                            regex : /[?:,;.]/,
-                            next  : "start"
-                        }, {
-                            token : "paren.lparen",
-                            regex : /[\[({]/,
-                            next  : "start"
-                        }, {
-                            token : "paren.rparen",
-                            regex : /[\])}]/
-                        }, {
-                            token: "comment",
-                            regex: /^#!.*$/
-                        }
-                    ],
-                    property: [{
-                            token : "text",
-                            regex : "\\s+"
-                        }, {
-                            token : [
-                                "storage.type", "punctuation.operator", "entity.name.function", "text",
-                                "keyword.operator", "text",
-                                "storage.type", "text", "entity.name.function", "text", "paren.lparen"
-                            ],
-                            regex : "(" + identifierRe + ")(\\.)(" + identifierRe +")(\\s*)(=)(\\s*)(function)(?:(\\s+)(\\w+))?(\\s*)(\\()",
-                            next: "function_arguments"
-                        }, {
-                            token : "punctuation.operator",
-                            regex : /[.](?![.])/
-                        }, {
-                            token : "support.function",
-                            regex : /(s(?:h(?:ift|ow(?:Mod(?:elessDialog|alDialog)|Help))|croll(?:X|By(?:Pages|Lines)?|Y|To)?|t(?:op|rike)|i(?:n|zeToContent|debar|gnText)|ort|u(?:p|b(?:str(?:ing)?)?)|pli(?:ce|t)|e(?:nd|t(?:Re(?:sizable|questHeader)|M(?:i(?:nutes|lliseconds)|onth)|Seconds|Ho(?:tKeys|urs)|Year|Cursor|Time(?:out)?|Interval|ZOptions|Date|UTC(?:M(?:i(?:nutes|lliseconds)|onth)|Seconds|Hours|Date|FullYear)|FullYear|Active)|arch)|qrt|lice|avePreferences|mall)|h(?:ome|andleEvent)|navigate|c(?:har(?:CodeAt|At)|o(?:s|n(?:cat|textual|firm)|mpile)|eil|lear(?:Timeout|Interval)?|a(?:ptureEvents|ll)|reate(?:StyleSheet|Popup|EventObject))|t(?:o(?:GMTString|S(?:tring|ource)|U(?:TCString|pperCase)|Lo(?:caleString|werCase))|est|a(?:n|int(?:Enabled)?))|i(?:s(?:NaN|Finite)|ndexOf|talics)|d(?:isableExternalCapture|ump|etachEvent)|u(?:n(?:shift|taint|escape|watch)|pdateCommands)|j(?:oin|avaEnabled)|p(?:o(?:p|w)|ush|lugins.refresh|a(?:ddings|rse(?:Int|Float)?)|r(?:int|ompt|eference))|e(?:scape|nableExternalCapture|val|lementFromPoint|x(?:p|ec(?:Script|Command)?))|valueOf|UTC|queryCommand(?:State|Indeterm|Enabled|Value)|f(?:i(?:nd|le(?:ModifiedDate|Size|CreatedDate|UpdatedDate)|xed)|o(?:nt(?:size|color)|rward)|loor|romCharCode)|watch|l(?:ink|o(?:ad|g)|astIndexOf)|a(?:sin|nchor|cos|t(?:tachEvent|ob|an(?:2)?)|pply|lert|b(?:s|ort))|r(?:ou(?:nd|teEvents)|e(?:size(?:By|To)|calc|turnValue|place|verse|l(?:oad|ease(?:Capture|Events)))|andom)|g(?:o|et(?:ResponseHeader|M(?:i(?:nutes|lliseconds)|onth)|Se(?:conds|lection)|Hours|Year|Time(?:zoneOffset)?|Da(?:y|te)|UTC(?:M(?:i(?:nutes|lliseconds)|onth)|Seconds|Hours|Da(?:y|te)|FullYear)|FullYear|A(?:ttention|llResponseHeaders)))|m(?:in|ove(?:B(?:y|elow)|To(?:Absolute)?|Above)|ergeAttributes|a(?:tch|rgins|x))|b(?:toa|ig|o(?:ld|rderWidths)|link|ack))\b(?=\()/
-                        }, {
-                            token : "support.function.dom",
-                            regex : /(s(?:ub(?:stringData|mit)|plitText|e(?:t(?:NamedItem|Attribute(?:Node)?)|lect))|has(?:ChildNodes|Feature)|namedItem|c(?:l(?:ick|o(?:se|neNode))|reate(?:C(?:omment|DATASection|aption)|T(?:Head|extNode|Foot)|DocumentFragment|ProcessingInstruction|E(?:ntityReference|lement)|Attribute))|tabIndex|i(?:nsert(?:Row|Before|Cell|Data)|tem)|open|delete(?:Row|C(?:ell|aption)|T(?:Head|Foot)|Data)|focus|write(?:ln)?|a(?:dd|ppend(?:Child|Data))|re(?:set|place(?:Child|Data)|move(?:NamedItem|Child|Attribute(?:Node)?)?)|get(?:NamedItem|Element(?:sBy(?:Name|TagName|ClassName)|ById)|Attribute(?:Node)?)|blur)\b(?=\()/
-                        }, {
-                            token :  "support.constant",
-                            regex : /(s(?:ystemLanguage|cr(?:ipts|ollbars|een(?:X|Y|Top|Left))|t(?:yle(?:Sheets)?|atus(?:Text|bar)?)|ibling(?:Below|Above)|ource|uffixes|e(?:curity(?:Policy)?|l(?:ection|f)))|h(?:istory|ost(?:name)?|as(?:h|Focus))|y|X(?:MLDocument|SLDocument)|n(?:ext|ame(?:space(?:s|URI)|Prop))|M(?:IN_VALUE|AX_VALUE)|c(?:haracterSet|o(?:n(?:structor|trollers)|okieEnabled|lorDepth|mp(?:onents|lete))|urrent|puClass|l(?:i(?:p(?:boardData)?|entInformation)|osed|asses)|alle(?:e|r)|rypto)|t(?:o(?:olbar|p)|ext(?:Transform|Indent|Decoration|Align)|ags)|SQRT(?:1_2|2)|i(?:n(?:ner(?:Height|Width)|put)|ds|gnoreCase)|zIndex|o(?:scpu|n(?:readystatechange|Line)|uter(?:Height|Width)|p(?:sProfile|ener)|ffscreenBuffering)|NEGATIVE_INFINITY|d(?:i(?:splay|alog(?:Height|Top|Width|Left|Arguments)|rectories)|e(?:scription|fault(?:Status|Ch(?:ecked|arset)|View)))|u(?:ser(?:Profile|Language|Agent)|n(?:iqueID|defined)|pdateInterval)|_content|p(?:ixelDepth|ort|ersonalbar|kcs11|l(?:ugins|atform)|a(?:thname|dding(?:Right|Bottom|Top|Left)|rent(?:Window|Layer)?|ge(?:X(?:Offset)?|Y(?:Offset)?))|r(?:o(?:to(?:col|type)|duct(?:Sub)?|mpter)|e(?:vious|fix)))|e(?:n(?:coding|abledPlugin)|x(?:ternal|pando)|mbeds)|v(?:isibility|endor(?:Sub)?|Linkcolor)|URLUnencoded|P(?:I|OSITIVE_INFINITY)|f(?:ilename|o(?:nt(?:Size|Family|Weight)|rmName)|rame(?:s|Element)|gColor)|E|whiteSpace|l(?:i(?:stStyleType|n(?:eHeight|kColor))|o(?:ca(?:tion(?:bar)?|lName)|wsrc)|e(?:ngth|ft(?:Context)?)|a(?:st(?:M(?:odified|atch)|Index|Paren)|yer(?:s|X)|nguage))|a(?:pp(?:MinorVersion|Name|Co(?:deName|re)|Version)|vail(?:Height|Top|Width|Left)|ll|r(?:ity|guments)|Linkcolor|bove)|r(?:ight(?:Context)?|e(?:sponse(?:XML|Text)|adyState))|global|x|m(?:imeTypes|ultiline|enubar|argin(?:Right|Bottom|Top|Left))|L(?:N(?:10|2)|OG(?:10E|2E))|b(?:o(?:ttom|rder(?:Width|RightWidth|BottomWidth|Style|Color|TopWidth|LeftWidth))|ufferDepth|elow|ackground(?:Color|Image)))\b/
-                        }, {
-                            token : "identifier",
-                            regex : identifierRe
-                        }, {
-                            regex: "",
-                            token: "empty",
-                            next: "no_regex"
-                        }
-                    ],
-                    "start": [
-                        DocCommentHighlightRules.getStartRule("doc-start"),
-                        comments("start"),
-                        {
-                            token: "string.regexp",
-                            regex: "\\/",
-                            next: "regex"
-                        }, {
-                            token : "text",
-                            regex : "\\s+|^$",
-                            next : "start"
-                        }, {
-                            token: "empty",
-                            regex: "",
-                            next: "no_regex"
-                        }
-                    ],
-                    "regex": [
-                        {
-                            token: "regexp.keyword.operator",
-                            regex: "\\\\(?:u[\\da-fA-F]{4}|x[\\da-fA-F]{2}|.)"
-                        }, {
-                            token: "string.regexp",
-                            regex: "/[sxngimy]*",
-                            next: "no_regex"
-                        }, {
-                            token : "invalid",
-                            regex: /\{\d+\b,?\d*\}[+*]|[+*$^?][+*]|[$^][?]|\?{3,}/
-                        }, {
-                            token : "constant.language.escape",
-                            regex: /\(\?[:=!]|\)|\{\d+\b,?\d*\}|[+*]\?|[()$^+*?.]/
-                        }, {
-                            token : "constant.language.delimiter",
-                            regex: /\|/
-                        }, {
-                            token: "constant.language.escape",
-                            regex: /\[\^?/,
-                            next: "regex_character_class"
-                        }, {
-                            token: "empty",
-                            regex: "$",
-                            next: "no_regex"
-                        }, {
-                            defaultToken: "string.regexp"
-                        }
-                    ],
-                    "regex_character_class": [
-                        {
-                            token: "regexp.charclass.keyword.operator",
-                            regex: "\\\\(?:u[\\da-fA-F]{4}|x[\\da-fA-F]{2}|.)"
-                        }, {
-                            token: "constant.language.escape",
-                            regex: "]",
-                            next: "regex"
-                        }, {
-                            token: "constant.language.escape",
-                            regex: "-"
-                        }, {
-                            token: "empty",
-                            regex: "$",
-                            next: "no_regex"
-                        }, {
-                            defaultToken: "string.regexp.charachterclass"
-                        }
-                    ],
-                    "function_arguments": [
-                        {
-                            token: "variable.parameter",
-                            regex: identifierRe
-                        }, {
-                            token: "punctuation.operator",
-                            regex: "[, ]+"
-                        }, {
-                            token: "punctuation.operator",
-                            regex: "$"
-                        }, {
-                            token: "empty",
-                            regex: "",
-                            next: "no_regex"
-                        }
-                    ],
-                    "qqstring" : [
-                        {
-                            token : "constant.language.escape",
-                            regex : escapedRe
-                        }, {
-                            token : "string",
-                            regex : "\\\\$",
-                            next  : "qqstring"
-                        }, {
-                            token : "string",
-                            regex : '"|$',
-                            next  : "no_regex"
-                        }, {
-                            defaultToken: "string"
-                        }
-                    ],
-                    "qstring" : [
-                        {
-                            token : "constant.language.escape",
-                            regex : escapedRe
-                        }, {
-                            token : "string",
-                            regex : "\\\\$",
-                            next  : "qstring"
-                        }, {
-                            token : "string",
-                            regex : "'|$",
-                            next  : "no_regex"
-                        }, {
-                            defaultToken: "string"
-                        }
-                    ]
-                };
-
-
-                if (!options || !options.noES6) {
-                    this.$rules.no_regex.unshift({
-                        regex: "[{}]", onMatch: function(val, state, stack) {
-                            this.next = val == "{" ? this.nextState : "";
-                            if (val == "{" && stack.length) {
-                                stack.unshift("start", state);
-                            }
-                            else if (val == "}" && stack.length) {
-                                stack.shift();
-                                this.next = stack.shift();
-                                if (this.next.indexOf("string") != -1 || this.next.indexOf("jsx") != -1)
-                                    return "paren.quasi.end";
-                            }
-                            return val == "{" ? "paren.lparen" : "paren.rparen";
-                        },
-                        nextState: "start"
-                    }, {
-                        token : "string.quasi.start",
-                        regex : /`/,
-                        push  : [{
-                            token : "constant.language.escape",
-                            regex : escapedRe
-                        }, {
-                            token : "paren.quasi.start",
-                            regex : /\${/,
-                            push  : "start"
-                        }, {
-                            token : "string.quasi.end",
-                            regex : /`/,
-                            next  : "pop"
-                        }, {
-                            defaultToken: "string.quasi"
-                        }]
-                    });
-
-                    if (!options || !options.noJSX)
-                        JSX.call(this);
-                }
-
-                this.embedRules(DocCommentHighlightRules, "doc-",
-                    [ DocCommentHighlightRules.getEndRule("no_regex") ]);
-
-                this.normalizeRules();
-            };
-
-            oop.inherits(JavaScriptHighlightRules, TextHighlightRules);
-
-            function JSX() {
-                var tagRegex = identifierRe.replace("\\d", "\\d\\-");
-                var jsxTag = {
-                    onMatch : function(val, state, stack) {
-                        var offset = val.charAt(1) == "/" ? 2 : 1;
-                        if (offset == 1) {
-                            if (state != this.nextState)
-                                stack.unshift(this.next, this.nextState, 0);
-                            else
-                                stack.unshift(this.next);
-                            stack[2]++;
-                        } else if (offset == 2) {
-                            if (state == this.nextState) {
-                                stack[1]--;
-                                if (!stack[1] || stack[1] < 0) {
-                                    stack.shift();
-                                    stack.shift();
-                                }
-                            }
-                        }
-                        return [{
-                            type: "meta.tag.punctuation." + (offset == 1 ? "" : "end-") + "tag-open.xml",
-                            value: val.slice(0, offset)
-                        }, {
-                            type: "meta.tag.tag-name.xml",
-                            value: val.substr(offset)
-                        }];
-                    },
-                    regex : "</?" + tagRegex + "",
-                    next: "jsxAttributes",
-                    nextState: "jsx"
-                };
-                this.$rules.start.unshift(jsxTag);
-                var jsxJsRule = {
-                    regex: "{",
-                    token: "paren.quasi.start",
-                    push: "start"
-                };
-                this.$rules.jsx = [
-                    jsxJsRule,
-                    jsxTag,
-                    {include : "reference"},
-                    {defaultToken: "string"}
-                ];
-                this.$rules.jsxAttributes = [{
-                    token : "meta.tag.punctuation.tag-close.xml",
-                    regex : "/?>",
-                    onMatch : function(value, currentState, stack) {
-                        if (currentState == stack[0])
-                            stack.shift();
-                        if (value.length == 2) {
-                            if (stack[0] == this.nextState)
-                                stack[1]--;
-                            if (!stack[1] || stack[1] < 0) {
-                                stack.splice(0, 2);
-                            }
-                        }
-                        this.next = stack[0] || "start";
-                        return [{type: this.token, value: value}];
-                    },
-                    nextState: "jsx"
-                },
-                jsxJsRule,
-                comments("jsxAttributes"),
-                {
-                    token : "entity.other.attribute-name.xml",
-                    regex : tagRegex
-                }, {
-                    token : "keyword.operator.attribute-equals.xml",
-                    regex : "="
-                }, {
-                    token : "text.tag-whitespace.xml",
-                    regex : "\\s+"
-                }, {
-                    token : "string.attribute-value.xml",
-                    regex : "'",
-                    stateName : "jsx_attr_q",
-                    push : [
-                        {token : "string.attribute-value.xml", regex: "'", next: "pop"},
-                        {include : "reference"},
-                        {defaultToken : "string.attribute-value.xml"}
-                    ]
-                }, {
-                    token : "string.attribute-value.xml",
-                    regex : '"',
-                    stateName : "jsx_attr_qq",
-                    push : [
-                        {token : "string.attribute-value.xml", regex: '"', next: "pop"},
-                        {include : "reference"},
-                        {defaultToken : "string.attribute-value.xml"}
-                    ]
-                },
-                jsxTag
-                ];
-                this.$rules.reference = [{
-                    token : "constant.language.escape.reference.xml",
-                    regex : "(?:&#[0-9]+;)|(?:&#x[0-9a-fA-F]+;)|(?:&[a-zA-Z0-9_:\\.-]+;)"
-                }];
-            }
-
-            function comments(next) {
-                return [
-                    {
-                        token : "comment", // multi line comment
-                        regex : /\/\*/,
-                        next: [
-                            DocCommentHighlightRules.getTagRule(),
-                            {token : "comment", regex : "\\*\\/", next : next || "pop"},
-                            {defaultToken : "comment", caseInsensitive: true}
-                        ]
-                    }, {
-                        token : "comment",
-                        regex : "\\/\\/",
-                        next: [
-                            DocCommentHighlightRules.getTagRule(),
-                            {token : "comment", regex : "$|^", next : next || "pop"},
-                            {defaultToken : "comment", caseInsensitive: true}
-                        ]
-                    }
-                ];
-            }
-            exports.JavaScriptHighlightRules = JavaScriptHighlightRules;
-            });
-
-            ace.define("ace/mode/matching_brace_outdent",["require","exports","module","ace/range"], function(require, exports, module) {
-            "use strict";
-
-            var Range = require("../range").Range;
-
-            var MatchingBraceOutdent = function() {};
-
-            (function() {
-
-                this.checkOutdent = function(line, input) {
-                    if (! /^\s+$/.test(line))
-                        return false;
-
-                    return /^\s*\}/.test(input);
-                };
-
-                this.autoOutdent = function(doc, row) {
-                    var line = doc.getLine(row);
-                    var match = line.match(/^(\s*\})/);
-
-                    if (!match) return 0;
-
-                    var column = match[1].length;
-                    var openBracePos = doc.findMatchingBracket({row: row, column: column});
-
-                    if (!openBracePos || openBracePos.row == row) return 0;
-
-                    var indent = this.$getIndent(doc.getLine(openBracePos.row));
-                    doc.replace(new Range(row, 0, row, column-1), indent);
-                };
-
-                this.$getIndent = function(line) {
-                    return line.match(/^\s*/)[0];
-                };
-
-            }).call(MatchingBraceOutdent.prototype);
-
-            exports.MatchingBraceOutdent = MatchingBraceOutdent;
-            });
-
-            ace.define("ace/mode/behaviour/cstyle",["require","exports","module","ace/lib/oop","ace/mode/behaviour","ace/token_iterator","ace/lib/lang"], function(require, exports, module) {
-            "use strict";
-
-            var oop = require("../../lib/oop");
-            var Behaviour = require("../behaviour").Behaviour;
-            var TokenIterator = require("../../token_iterator").TokenIterator;
-            var lang = require("../../lib/lang");
-
-            var SAFE_INSERT_IN_TOKENS =
-                ["text", "paren.rparen", "punctuation.operator"];
-            var SAFE_INSERT_BEFORE_TOKENS =
-                ["text", "paren.rparen", "punctuation.operator", "comment"];
-
-            var context;
-            var contextCache = {};
-            var initContext = function(editor) {
-                var id = -1;
-                if (editor.multiSelect) {
-                    id = editor.selection.index;
-                    if (contextCache.rangeCount != editor.multiSelect.rangeCount)
-                        contextCache = {rangeCount: editor.multiSelect.rangeCount};
-                }
-                if (contextCache[id])
-                    return context = contextCache[id];
-                context = contextCache[id] = {
-                    autoInsertedBrackets: 0,
-                    autoInsertedRow: -1,
-                    autoInsertedLineEnd: "",
-                    maybeInsertedBrackets: 0,
-                    maybeInsertedRow: -1,
-                    maybeInsertedLineStart: "",
-                    maybeInsertedLineEnd: ""
-                };
-            };
-
-            var getWrapped = function(selection, selected, opening, closing) {
-                var rowDiff = selection.end.row - selection.start.row;
-                return {
-                    text: opening + selected + closing,
-                    selection: [
-                            0,
-                            selection.start.column + 1,
-                            rowDiff,
-                            selection.end.column + (rowDiff ? 0 : 1)
-                        ]
-                };
-            };
-
-            var CstyleBehaviour = function() {
-                this.add("braces", "insertion", function(state, action, editor, session, text) {
-                    var cursor = editor.getCursorPosition();
-                    var line = session.doc.getLine(cursor.row);
-                    if (text == '{') {
-                        initContext(editor);
-                        var selection = editor.getSelectionRange();
-                        var selected = session.doc.getTextRange(selection);
-                        if (selected !== "" && selected !== "{" && editor.getWrapBehavioursEnabled()) {
-                            return getWrapped(selection, selected, '{', '}');
-                        } else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
-                            if (/[\]\}\)]/.test(line[cursor.column]) || editor.inMultiSelectMode) {
-                                CstyleBehaviour.recordAutoInsert(editor, session, "}");
-                                return {
-                                    text: '{}',
-                                    selection: [1, 1]
-                                };
-                            } else {
-                                CstyleBehaviour.recordMaybeInsert(editor, session, "{");
-                                return {
-                                    text: '{',
-                                    selection: [1, 1]
-                                };
-                            }
-                        }
-                    } else if (text == '}') {
-                        initContext(editor);
-                        var rightChar = line.substring(cursor.column, cursor.column + 1);
-                        if (rightChar == '}') {
-                            var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
-                            if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
-                                CstyleBehaviour.popAutoInsertedClosing();
-                                return {
-                                    text: '',
-                                    selection: [1, 1]
-                                };
-                            }
-                        }
-                    } else if (text == "\n" || text == "\r\n") {
-                        initContext(editor);
-                        var closing = "";
-                        if (CstyleBehaviour.isMaybeInsertedClosing(cursor, line)) {
-                            closing = lang.stringRepeat("}", context.maybeInsertedBrackets);
-                            CstyleBehaviour.clearMaybeInsertedClosing();
-                        }
-                        var rightChar = line.substring(cursor.column, cursor.column + 1);
-                        if (rightChar === '}') {
-                            var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column+1}, '}');
-                            if (!openBracePos)
-                                 return null;
-                            var next_indent = this.$getIndent(session.getLine(openBracePos.row));
-                        } else if (closing) {
-                            var next_indent = this.$getIndent(line);
-                        } else {
-                            CstyleBehaviour.clearMaybeInsertedClosing();
-                            return;
-                        }
-                        var indent = next_indent + session.getTabString();
-
-                        return {
-                            text: '\n' + indent + '\n' + next_indent + closing,
-                            selection: [1, indent.length, 1, indent.length]
-                        };
-                    } else {
-                        CstyleBehaviour.clearMaybeInsertedClosing();
-                    }
-                });
-
-                this.add("braces", "deletion", function(state, action, editor, session, range) {
-                    var selected = session.doc.getTextRange(range);
-                    if (!range.isMultiLine() && selected == '{') {
-                        initContext(editor);
-                        var line = session.doc.getLine(range.start.row);
-                        var rightChar = line.substring(range.end.column, range.end.column + 1);
-                        if (rightChar == '}') {
-                            range.end.column++;
-                            return range;
-                        } else {
-                            context.maybeInsertedBrackets--;
-                        }
-                    }
-                });
-
-                this.add("parens", "insertion", function(state, action, editor, session, text) {
-                    if (text == '(') {
-                        initContext(editor);
-                        var selection = editor.getSelectionRange();
-                        var selected = session.doc.getTextRange(selection);
-                        if (selected !== "" && editor.getWrapBehavioursEnabled()) {
-                            return getWrapped(selection, selected, '(', ')');
-                        } else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
-                            CstyleBehaviour.recordAutoInsert(editor, session, ")");
-                            return {
-                                text: '()',
-                                selection: [1, 1]
-                            };
-                        }
-                    } else if (text == ')') {
-                        initContext(editor);
-                        var cursor = editor.getCursorPosition();
-                        var line = session.doc.getLine(cursor.row);
-                        var rightChar = line.substring(cursor.column, cursor.column + 1);
-                        if (rightChar == ')') {
-                            var matching = session.$findOpeningBracket(')', {column: cursor.column + 1, row: cursor.row});
-                            if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
-                                CstyleBehaviour.popAutoInsertedClosing();
-                                return {
-                                    text: '',
-                                    selection: [1, 1]
-                                };
-                            }
-                        }
-                    }
-                });
-
-                this.add("parens", "deletion", function(state, action, editor, session, range) {
-                    var selected = session.doc.getTextRange(range);
-                    if (!range.isMultiLine() && selected == '(') {
-                        initContext(editor);
-                        var line = session.doc.getLine(range.start.row);
-                        var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
-                        if (rightChar == ')') {
-                            range.end.column++;
-                            return range;
-                        }
-                    }
-                });
-
-                this.add("brackets", "insertion", function(state, action, editor, session, text) {
-                    if (text == '[') {
-                        initContext(editor);
-                        var selection = editor.getSelectionRange();
-                        var selected = session.doc.getTextRange(selection);
-                        if (selected !== "" && editor.getWrapBehavioursEnabled()) {
-                            return getWrapped(selection, selected, '[', ']');
-                        } else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
-                            CstyleBehaviour.recordAutoInsert(editor, session, "]");
-                            return {
-                                text: '[]',
-                                selection: [1, 1]
-                            };
-                        }
-                    } else if (text == ']') {
-                        initContext(editor);
-                        var cursor = editor.getCursorPosition();
-                        var line = session.doc.getLine(cursor.row);
-                        var rightChar = line.substring(cursor.column, cursor.column + 1);
-                        if (rightChar == ']') {
-                            var matching = session.$findOpeningBracket(']', {column: cursor.column + 1, row: cursor.row});
-                            if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
-                                CstyleBehaviour.popAutoInsertedClosing();
-                                return {
-                                    text: '',
-                                    selection: [1, 1]
-                                };
-                            }
-                        }
-                    }
-                });
-
-                this.add("brackets", "deletion", function(state, action, editor, session, range) {
-                    var selected = session.doc.getTextRange(range);
-                    if (!range.isMultiLine() && selected == '[') {
-                        initContext(editor);
-                        var line = session.doc.getLine(range.start.row);
-                        var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
-                        if (rightChar == ']') {
-                            range.end.column++;
-                            return range;
-                        }
-                    }
-                });
-
-                this.add("string_dquotes", "insertion", function(state, action, editor, session, text) {
-                    if (text == '"' || text == "'") {
-                        initContext(editor);
-                        var quote = text;
-                        var selection = editor.getSelectionRange();
-                        var selected = session.doc.getTextRange(selection);
-                        if (selected !== "" && selected !== "'" && selected != '"' && editor.getWrapBehavioursEnabled()) {
-                            return getWrapped(selection, selected, quote, quote);
-                        } else if (!selected) {
-                            var cursor = editor.getCursorPosition();
-                            var line = session.doc.getLine(cursor.row);
-                            var leftChar = line.substring(cursor.column-1, cursor.column);
-                            var rightChar = line.substring(cursor.column, cursor.column + 1);
-
-                            var token = session.getTokenAt(cursor.row, cursor.column);
-                            var rightToken = session.getTokenAt(cursor.row, cursor.column + 1);
-                            if (leftChar == "\\" && token && /escape/.test(token.type))
-                                return null;
-
-                            var stringBefore = token && /string|escape/.test(token.type);
-                            var stringAfter = !rightToken || /string|escape/.test(rightToken.type);
-
-                            var pair;
-                            if (rightChar == quote) {
-                                pair = stringBefore !== stringAfter;
-                            } else {
-                                if (stringBefore && !stringAfter)
-                                    return null; // wrap string with different quote
-                                if (stringBefore && stringAfter)
-                                    return null; // do not pair quotes inside strings
-                                var wordRe = session.$mode.tokenRe;
-                                wordRe.lastIndex = 0;
-                                var isWordBefore = wordRe.test(leftChar);
-                                wordRe.lastIndex = 0;
-                                var isWordAfter = wordRe.test(leftChar);
-                                if (isWordBefore || isWordAfter)
-                                    return null; // before or after alphanumeric
-                                if (rightChar && !/[\s;,.})\]\\]/.test(rightChar))
-                                    return null; // there is rightChar and it isn't closing
-                                pair = true;
-                            }
-                            return {
-                                text: pair ? quote + quote : "",
-                                selection: [1,1]
-                            };
-                        }
-                    }
-                });
-
-                this.add("string_dquotes", "deletion", function(state, action, editor, session, range) {
-                    var selected = session.doc.getTextRange(range);
-                    if (!range.isMultiLine() && (selected == '"' || selected == "'")) {
-                        initContext(editor);
-                        var line = session.doc.getLine(range.start.row);
-                        var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
-                        if (rightChar == selected) {
-                            range.end.column++;
-                            return range;
-                        }
-                    }
-                });
-
-            };
-
-
-            CstyleBehaviour.isSaneInsertion = function(editor, session) {
-                var cursor = editor.getCursorPosition();
-                var iterator = new TokenIterator(session, cursor.row, cursor.column);
-                if (!this.$matchTokenType(iterator.getCurrentToken() || "text", SAFE_INSERT_IN_TOKENS)) {
-                    var iterator2 = new TokenIterator(session, cursor.row, cursor.column + 1);
-                    if (!this.$matchTokenType(iterator2.getCurrentToken() || "text", SAFE_INSERT_IN_TOKENS))
-                        return false;
-                }
-                iterator.stepForward();
-                return iterator.getCurrentTokenRow() !== cursor.row ||
-                    this.$matchTokenType(iterator.getCurrentToken() || "text", SAFE_INSERT_BEFORE_TOKENS);
-            };
-
-            CstyleBehaviour.$matchTokenType = function(token, types) {
-                return types.indexOf(token.type || token) > -1;
-            };
-
-            CstyleBehaviour.recordAutoInsert = function(editor, session, bracket) {
-                var cursor = editor.getCursorPosition();
-                var line = session.doc.getLine(cursor.row);
-                if (!this.isAutoInsertedClosing(cursor, line, context.autoInsertedLineEnd[0]))
-                    context.autoInsertedBrackets = 0;
-                context.autoInsertedRow = cursor.row;
-                context.autoInsertedLineEnd = bracket + line.substr(cursor.column);
-                context.autoInsertedBrackets++;
-            };
-
-            CstyleBehaviour.recordMaybeInsert = function(editor, session, bracket) {
-                var cursor = editor.getCursorPosition();
-                var line = session.doc.getLine(cursor.row);
-                if (!this.isMaybeInsertedClosing(cursor, line))
-                    context.maybeInsertedBrackets = 0;
-                context.maybeInsertedRow = cursor.row;
-                context.maybeInsertedLineStart = line.substr(0, cursor.column) + bracket;
-                context.maybeInsertedLineEnd = line.substr(cursor.column);
-                context.maybeInsertedBrackets++;
-            };
-
-            CstyleBehaviour.isAutoInsertedClosing = function(cursor, line, bracket) {
-                return context.autoInsertedBrackets > 0 &&
-                    cursor.row === context.autoInsertedRow &&
-                    bracket === context.autoInsertedLineEnd[0] &&
-                    line.substr(cursor.column) === context.autoInsertedLineEnd;
-            };
-
-            CstyleBehaviour.isMaybeInsertedClosing = function(cursor, line) {
-                return context.maybeInsertedBrackets > 0 &&
-                    cursor.row === context.maybeInsertedRow &&
-                    line.substr(cursor.column) === context.maybeInsertedLineEnd &&
-                    line.substr(0, cursor.column) == context.maybeInsertedLineStart;
-            };
-
-            CstyleBehaviour.popAutoInsertedClosing = function() {
-                context.autoInsertedLineEnd = context.autoInsertedLineEnd.substr(1);
-                context.autoInsertedBrackets--;
-            };
-
-            CstyleBehaviour.clearMaybeInsertedClosing = function() {
-                if (context) {
-                    context.maybeInsertedBrackets = 0;
-                    context.maybeInsertedRow = -1;
-                }
-            };
-
-
-
-            oop.inherits(CstyleBehaviour, Behaviour);
-
-            exports.CstyleBehaviour = CstyleBehaviour;
-            });
-
-            ace.define("ace/mode/folding/cstyle",["require","exports","module","ace/lib/oop","ace/range","ace/mode/folding/fold_mode"], function(require, exports, module) {
-            "use strict";
-
-            var oop = require("../../lib/oop");
-            var Range = require("../../range").Range;
-            var BaseFoldMode = require("./fold_mode").FoldMode;
-
-            var FoldMode = exports.FoldMode = function(commentRegex) {
-                if (commentRegex) {
-                    this.foldingStartMarker = new RegExp(
-                        this.foldingStartMarker.source.replace(/\|[^|]*?$/, "|" + commentRegex.start)
-                    );
-                    this.foldingStopMarker = new RegExp(
-                        this.foldingStopMarker.source.replace(/\|[^|]*?$/, "|" + commentRegex.end)
-                    );
-                }
-            };
-            oop.inherits(FoldMode, BaseFoldMode);
-
-            (function() {
-
-                this.foldingStartMarker = /(\{|\[)[^\}\]]*$|^\s*(\/\*)/;
-                this.foldingStopMarker = /^[^\[\{]*(\}|\])|^[\s\*]*(\*\/)/;
-                this.singleLineBlockCommentRe= /^\s*(\/\*).*\*\/\s*$/;
-                this.tripleStarBlockCommentRe = /^\s*(\/\*\*\*).*\*\/\s*$/;
-                this.startRegionRe = /^\s*(\/\*|\/\/)#?region\b/;
-                this._getFoldWidgetBase = this.getFoldWidget;
-                this.getFoldWidget = function(session, foldStyle, row) {
-                    var line = session.getLine(row);
-
-                    if (this.singleLineBlockCommentRe.test(line)) {
-                        if (!this.startRegionRe.test(line) && !this.tripleStarBlockCommentRe.test(line))
-                            return "";
-                    }
-
-                    var fw = this._getFoldWidgetBase(session, foldStyle, row);
-
-                    if (!fw && this.startRegionRe.test(line))
-                        return "start"; // lineCommentRegionStart
-
-                    return fw;
-                };
-
-                this.getFoldWidgetRange = function(session, foldStyle, row, forceMultiline) {
-                    var line = session.getLine(row);
-
-                    if (this.startRegionRe.test(line))
-                        return this.getCommentRegionBlock(session, line, row);
-
-                    var match = line.match(this.foldingStartMarker);
-                    if (match) {
-                        var i = match.index;
-
-                        if (match[1])
-                            return this.openingBracketBlock(session, match[1], row, i);
-
-                        var range = session.getCommentFoldRange(row, i + match[0].length, 1);
-
-                        if (range && !range.isMultiLine()) {
-                            if (forceMultiline) {
-                                range = this.getSectionRange(session, row);
-                            } else if (foldStyle != "all")
-                                range = null;
-                        }
-
-                        return range;
-                    }
-
-                    if (foldStyle === "markbegin")
-                        return;
-
-                    var match = line.match(this.foldingStopMarker);
-                    if (match) {
-                        var i = match.index + match[0].length;
-
-                        if (match[1])
-                            return this.closingBracketBlock(session, match[1], row, i);
-
-                        return session.getCommentFoldRange(row, i, -1);
-                    }
-                };
-
-                this.getSectionRange = function(session, row) {
-                    var line = session.getLine(row);
-                    var startIndent = line.search(/\S/);
-                    var startRow = row;
-                    var startColumn = line.length;
-                    row = row + 1;
-                    var endRow = row;
-                    var maxRow = session.getLength();
-                    while (++row < maxRow) {
-                        line = session.getLine(row);
-                        var indent = line.search(/\S/);
-                        if (indent === -1)
-                            continue;
-                        if  (startIndent > indent)
-                            break;
-                        var subRange = this.getFoldWidgetRange(session, "all", row);
-
-                        if (subRange) {
-                            if (subRange.start.row <= startRow) {
-                                break;
-                            } else if (subRange.isMultiLine()) {
-                                row = subRange.end.row;
-                            } else if (startIndent == indent) {
-                                break;
-                            }
-                        }
-                        endRow = row;
-                    }
-
-                    return new Range(startRow, startColumn, endRow, session.getLine(endRow).length);
-                };
-                this.getCommentRegionBlock = function(session, line, row) {
-                    var startColumn = line.search(/\s*$/);
-                    var maxRow = session.getLength();
-                    var startRow = row;
-
-                    var re = /^\s*(?:\/\*|\/\/|--)#?(end)?region\b/;
-                    var depth = 1;
-                    while (++row < maxRow) {
-                        line = session.getLine(row);
-                        var m = re.exec(line);
-                        if (!m) continue;
-                        if (m[1]) depth--;
-                        else depth++;
-
-                        if (!depth) break;
-                    }
-
-                    var endRow = row;
-                    if (endRow > startRow) {
-                        return new Range(startRow, startColumn, endRow, line.length);
-                    }
-                };
-
-            }).call(FoldMode.prototype);
-
-            });
-
-            ace.define("ace/mode/javascript",["require","exports","module","ace/lib/oop","ace/mode/text","ace/mode/javascript_highlight_rules","ace/mode/matching_brace_outdent","ace/range","ace/worker/worker_client","ace/mode/behaviour/cstyle","ace/mode/folding/cstyle"], function(require, exports, module) {
-            "use strict";
-
-            var oop = require("../lib/oop");
-            var TextMode = require("./text").Mode;
-            var JavaScriptHighlightRules = require("./javascript_highlight_rules").JavaScriptHighlightRules;
-            var MatchingBraceOutdent = require("./matching_brace_outdent").MatchingBraceOutdent;
-            var Range = require("../range").Range;
-            var WorkerClient = require("../worker/worker_client").WorkerClient;
-            var CstyleBehaviour = require("./behaviour/cstyle").CstyleBehaviour;
-            var CStyleFoldMode = require("./folding/cstyle").FoldMode;
-
-            var Mode = function() {
-                this.HighlightRules = JavaScriptHighlightRules;
-
-                this.$outdent = new MatchingBraceOutdent();
-                this.$behaviour = new CstyleBehaviour();
-                this.foldingRules = new CStyleFoldMode();
-            };
-            oop.inherits(Mode, TextMode);
-
-            (function() {
-
-                this.lineCommentStart = "//";
-                this.blockComment = {start: "/*", end: "*/"};
-
-                this.getNextLineIndent = function(state, line, tab) {
-                    var indent = this.$getIndent(line);
-
-                    var tokenizedLine = this.getTokenizer().getLineTokens(line, state);
-                    var tokens = tokenizedLine.tokens;
-                    var endState = tokenizedLine.state;
-
-                    if (tokens.length && tokens[tokens.length-1].type == "comment") {
-                        return indent;
-                    }
-
-                    if (state == "start" || state == "no_regex") {
-                        var match = line.match(/^.*(?:\bcase\b.*\:|[\{\(\[])\s*$/);
-                        if (match) {
-                            indent += tab;
-                        }
-                    } else if (state == "doc-start") {
-                        if (endState == "start" || endState == "no_regex") {
-                            return "";
-                        }
-                        var match = line.match(/^\s*(\/?)\*/);
-                        if (match) {
-                            if (match[1]) {
-                                indent += " ";
-                            }
-                            indent += "* ";
-                        }
-                    }
-
-                    return indent;
-                };
-
-                this.checkOutdent = function(state, line, input) {
-                    return this.$outdent.checkOutdent(line, input);
-                };
-
-                this.autoOutdent = function(state, doc, row) {
-                    this.$outdent.autoOutdent(doc, row);
-                };
-
-                this.createWorker = function(session) {
-                    var worker = new WorkerClient(["ace"], "ace/mode/javascript_worker", "JavaScriptWorker");
-                    worker.attachToDocument(session.getDocument());
-
-                    worker.on("annotate", function(results) {
-                        session.setAnnotations(results.data);
-                    });
-
-                    worker.on("terminate", function() {
-                        session.clearAnnotations();
-                    });
-
-                    return worker;
-                };
-
-                this.$id = "ace/mode/javascript";
-            }).call(Mode.prototype);
-
-            exports.Mode = Mode;
-            });
-
-
-
-
-            ace.define("ace/theme/chrome",["require","exports","module","ace/lib/dom"], function(require, exports, module) {
-
-            exports.isDark = false;
-            exports.cssClass = "ace-chrome";
-            exports.cssText = ".ace-chrome .ace_gutter {\
-            background: #ebebeb;\
-            color: #333;\
-            overflow : hidden;\
-            }\
-            .ace-chrome .ace_print-margin {\
-            width: 1px;\
-            background: #e8e8e8;\
-            }\
-            .ace-chrome {\
-            background-color: #FFFFFF;\
-            color: black;\
-            }\
-            .ace-chrome .ace_cursor {\
-            color: black;\
-            }\
-            .ace-chrome .ace_invisible {\
-            color: rgb(191, 191, 191);\
-            }\
-            .ace-chrome .ace_constant.ace_buildin {\
-            color: rgb(88, 72, 246);\
-            }\
-            .ace-chrome .ace_constant.ace_language {\
-            color: rgb(88, 92, 246);\
-            }\
-            .ace-chrome .ace_constant.ace_library {\
-            color: rgb(6, 150, 14);\
-            }\
-            .ace-chrome .ace_invalid {\
-            background-color: rgb(153, 0, 0);\
-            color: white;\
-            }\
-            .ace-chrome .ace_fold {\
-            }\
-            .ace-chrome .ace_support.ace_function {\
-            color: rgb(60, 76, 114);\
-            }\
-            .ace-chrome .ace_support.ace_constant {\
-            color: rgb(6, 150, 14);\
-            }\
-            .ace-chrome .ace_support.ace_type,\
-            .ace-chrome .ace_support.ace_class\
-            .ace-chrome .ace_support.ace_other {\
-            color: rgb(109, 121, 222);\
-            }\
-            .ace-chrome .ace_variable.ace_parameter {\
-            font-style:italic;\
-            color:#FD971F;\
-            }\
-            .ace-chrome .ace_keyword.ace_operator {\
-            color: rgb(104, 118, 135);\
-            }\
-            .ace-chrome .ace_comment {\
-            color: #236e24;\
-            }\
-            .ace-chrome .ace_comment.ace_doc {\
-            color: #236e24;\
-            }\
-            .ace-chrome .ace_comment.ace_doc.ace_tag {\
-            color: #236e24;\
-            }\
-            .ace-chrome .ace_constant.ace_numeric {\
-            color: rgb(0, 0, 205);\
-            }\
-            .ace-chrome .ace_variable {\
-            color: rgb(49, 132, 149);\
-            }\
-            .ace-chrome .ace_xml-pe {\
-            color: rgb(104, 104, 91);\
-            }\
-            .ace-chrome .ace_entity.ace_name.ace_function {\
-            color: #0000A2;\
-            }\
-            .ace-chrome .ace_heading {\
-            color: rgb(12, 7, 255);\
-            }\
-            .ace-chrome .ace_list {\
-            color:rgb(185, 6, 144);\
-            }\
-            .ace-chrome .ace_marker-layer .ace_selection {\
-            background: rgb(181, 213, 255);\
-            }\
-            .ace-chrome .ace_marker-layer .ace_step {\
-            background: rgb(252, 255, 0);\
-            }\
-            .ace-chrome .ace_marker-layer .ace_stack {\
-            background: rgb(164, 229, 101);\
-            }\
-            .ace-chrome .ace_marker-layer .ace_bracket {\
-            margin: -1px 0 0 -1px;\
-            border: 1px solid rgb(192, 192, 192);\
-            }\
-            .ace-chrome .ace_marker-layer .ace_active-line {\
-            background: rgba(0, 0, 0, 0.07);\
-            }\
-            .ace-chrome .ace_gutter-active-line {\
-            background-color : #dcdcdc;\
-            }\
-            .ace-chrome .ace_marker-layer .ace_selected-word {\
-            background: rgb(250, 250, 255);\
-            border: 1px solid rgb(200, 200, 250);\
-            }\
-            .ace-chrome .ace_storage,\
-            .ace-chrome .ace_keyword,\
-            .ace-chrome .ace_meta.ace_tag {\
-            color: rgb(147, 15, 128);\
-            }\
-            .ace-chrome .ace_string.ace_regex {\
-            color: rgb(255, 0, 0)\
-            }\
-            .ace-chrome .ace_string {\
-            color: #1A1AA6;\
-            }\
-            .ace-chrome .ace_entity.ace_other.ace_attribute-name {\
-            color: #994409;\
-            }\
-            .ace-chrome .ace_indent-guide {\
-            background: url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAACCAYAAACZgbYnAAAAE0lEQVQImWP4////f4bLly//BwAmVgd1/w11/gAAAABJRU5ErkJggg==\") right repeat-y;\
-            }\
-            ";
-
-            var dom = require("../lib/dom");
-            dom.importCssString(exports.cssText, exports.cssClass);
-            });
diff --git a/game/codemirror.js b/game/codemirror.js
new file mode 100644
index 000000000..cc2bb9929
--- /dev/null
+++ b/game/codemirror.js
@@ -0,0 +1,9681 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// This is CodeMirror (http://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    module.exports = mod();
+  else if (typeof define == "function" && define.amd) // AMD
+    return define([], mod);
+  else // Plain browser env
+    (this || window).CodeMirror = mod();
+})(function() {
+  "use strict";
+
+  // BROWSER SNIFFING
+
+  // Kludges for bugs and behavior differences that can't be feature
+  // detected are enabled based on userAgent etc sniffing.
+  var userAgent = navigator.userAgent;
+  var platform = navigator.platform;
+
+  var gecko = /gecko\/\d/i.test(userAgent);
+  var ie_upto10 = /MSIE \d/.test(userAgent);
+  var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
+  var ie = ie_upto10 || ie_11up;
+  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
+  var webkit = /WebKit\//.test(userAgent);
+  var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
+  var chrome = /Chrome\//.test(userAgent);
+  var presto = /Opera\//.test(userAgent);
+  var safari = /Apple Computer/.test(navigator.vendor);
+  var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
+  var phantom = /PhantomJS/.test(userAgent);
+
+  var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
+  // This is woefully incomplete. Suggestions for alternative methods welcome.
+  var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
+  var mac = ios || /Mac/.test(platform);
+  var chromeOS = /\bCrOS\b/.test(userAgent);
+  var windows = /win/i.test(platform);
+
+  var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
+  if (presto_version) presto_version = Number(presto_version[1]);
+  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
+  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
+  var captureRightClick = gecko || (ie && ie_version >= 9);
+
+  // Optimize some code when these features are not used.
+  var sawReadOnlySpans = false, sawCollapsedSpans = false;
+
+  // EDITOR CONSTRUCTOR
+
+  // A CodeMirror instance represents an editor. This is the object
+  // that user code is usually dealing with.
+
+  function CodeMirror(place, options) {
+    if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
+
+    this.options = options = options ? copyObj(options) : {};
+    // Determine effective options based on given values and defaults.
+    copyObj(defaults, options, false);
+    setGuttersForLineNumbers(options);
+
+    var doc = options.value;
+    if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator);
+    this.doc = doc;
+
+    var input = new CodeMirror.inputStyles[options.inputStyle](this);
+    var display = this.display = new Display(place, doc, input);
+    display.wrapper.CodeMirror = this;
+    updateGutters(this);
+    themeChanged(this);
+    if (options.lineWrapping)
+      this.display.wrapper.className += " CodeMirror-wrap";
+    if (options.autofocus && !mobile) display.input.focus();
+    initScrollbars(this);
+
+    this.state = {
+      keyMaps: [],  // stores maps added by addKeyMap
+      overlays: [], // highlighting overlays, as added by addOverlay
+      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
+      overwrite: false,
+      delayingBlurEvent: false,
+      focused: false,
+      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+      pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
+      selectingText: false,
+      draggingText: false,
+      highlight: new Delayed(), // stores highlight worker timeout
+      keySeq: null,  // Unfinished key sequence
+      specialChars: null
+    };
+
+    var cm = this;
+
+    // Override magic textarea content restore that IE sometimes does
+    // on our hidden textarea on reload
+    if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20);
+
+    registerEventHandlers(this);
+    ensureGlobalHandlers();
+
+    startOperation(this);
+    this.curOp.forceUpdate = true;
+    attachDoc(this, doc);
+
+    if ((options.autofocus && !mobile) || cm.hasFocus())
+      setTimeout(bind(onFocus, this), 20);
+    else
+      onBlur(this);
+
+    for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
+      optionHandlers[opt](this, options[opt], Init);
+    maybeUpdateLineNumberWidth(this);
+    if (options.finishInit) options.finishInit(this);
+    for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
+    endOperation(this);
+    // Suppress optimizelegibility in Webkit, since it breaks text
+    // measuring on line wrapping boundaries.
+    if (webkit && options.lineWrapping &&
+        getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+      display.lineDiv.style.textRendering = "auto";
+  }
+
+  // DISPLAY CONSTRUCTOR
+
+  // The display handles the DOM integration, both for input reading
+  // and content drawing. It holds references to DOM nodes and
+  // display-related state.
+
+  function Display(place, doc, input) {
+    var d = this;
+    this.input = input;
+
+    // Covers bottom-right square when both scrollbars are present.
+    d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
+    d.scrollbarFiller.setAttribute("cm-not-content", "true");
+    // Covers bottom of gutter when coverGutterNextToScrollbar is on
+    // and h scrollbar is present.
+    d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
+    d.gutterFiller.setAttribute("cm-not-content", "true");
+    // Will contain the actual code, positioned to cover the viewport.
+    d.lineDiv = elt("div", null, "CodeMirror-code");
+    // Elements are added to these to represent selection and cursors.
+    d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
+    d.cursorDiv = elt("div", null, "CodeMirror-cursors");
+    // A visibility: hidden element used to find the size of things.
+    d.measure = elt("div", null, "CodeMirror-measure");
+    // When lines outside of the viewport are measured, they are drawn in this.
+    d.lineMeasure = elt("div", null, "CodeMirror-measure");
+    // Wraps everything that needs to exist inside the vertically-padded coordinate system
+    d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+                      null, "position: relative; outline: none");
+    // Moved around its parent to cover visible view.
+    d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
+    // Set to the height of the document, allowing scrolling.
+    d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
+    d.sizerWidth = null;
+    // Behavior of elts with overflow: auto and padding is
+    // inconsistent across browsers. This is used to ensure the
+    // scrollable area is big enough.
+    d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
+    // Will contain the gutters, if any.
+    d.gutters = elt("div", null, "CodeMirror-gutters");
+    d.lineGutter = null;
+    // Actual scrollable element.
+    d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
+    d.scroller.setAttribute("tabIndex", "-1");
+    // The element in which the editor lives.
+    d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
+
+    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
+    if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;
+
+    if (place) {
+      if (place.appendChild) place.appendChild(d.wrapper);
+      else place(d.wrapper);
+    }
+
+    // Current rendered range (may be bigger than the view window).
+    d.viewFrom = d.viewTo = doc.first;
+    d.reportedViewFrom = d.reportedViewTo = doc.first;
+    // Information about the rendered lines.
+    d.view = [];
+    d.renderedView = null;
+    // Holds info about a single rendered line when it was rendered
+    // for measurement, while not in view.
+    d.externalMeasured = null;
+    // Empty space (in pixels) above the view
+    d.viewOffset = 0;
+    d.lastWrapHeight = d.lastWrapWidth = 0;
+    d.updateLineNumbers = null;
+
+    d.nativeBarWidth = d.barHeight = d.barWidth = 0;
+    d.scrollbarsClipped = false;
+
+    // Used to only resize the line number gutter when necessary (when
+    // the amount of lines crosses a boundary that makes its width change)
+    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
+    // Set to true when a non-horizontal-scrolling line widget is
+    // added. As an optimization, line widget aligning is skipped when
+    // this is false.
+    d.alignWidgets = false;
+
+    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+
+    // Tracks the maximum line length so that the horizontal scrollbar
+    // can be kept static when scrolling.
+    d.maxLine = null;
+    d.maxLineLength = 0;
+    d.maxLineChanged = false;
+
+    // Used for measuring wheel scrolling granularity
+    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
+
+    // True when shift is held down.
+    d.shift = false;
+
+    // Used to track whether anything happened since the context menu
+    // was opened.
+    d.selForContextMenu = null;
+
+    d.activeTouch = null;
+
+    input.init(d);
+  }
+
+  // STATE UPDATES
+
+  // Used to get the editor into a consistent state again when options change.
+
+  function loadMode(cm) {
+    cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
+    resetModeState(cm);
+  }
+
+  function resetModeState(cm) {
+    cm.doc.iter(function(line) {
+      if (line.stateAfter) line.stateAfter = null;
+      if (line.styles) line.styles = null;
+    });
+    cm.doc.frontier = cm.doc.first;
+    startWorker(cm, 100);
+    cm.state.modeGen++;
+    if (cm.curOp) regChange(cm);
+  }
+
+  function wrappingChanged(cm) {
+    if (cm.options.lineWrapping) {
+      addClass(cm.display.wrapper, "CodeMirror-wrap");
+      cm.display.sizer.style.minWidth = "";
+      cm.display.sizerWidth = null;
+    } else {
+      rmClass(cm.display.wrapper, "CodeMirror-wrap");
+      findMaxLine(cm);
+    }
+    estimateLineHeights(cm);
+    regChange(cm);
+    clearCaches(cm);
+    setTimeout(function(){updateScrollbars(cm);}, 100);
+  }
+
+  // Returns a function that estimates the height of a line, to use as
+  // first approximation until the line becomes visible (and is thus
+  // properly measurable).
+  function estimateHeight(cm) {
+    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
+    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
+    return function(line) {
+      if (lineIsHidden(cm.doc, line)) return 0;
+
+      var widgetsHeight = 0;
+      if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
+        if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
+      }
+
+      if (wrapping)
+        return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
+      else
+        return widgetsHeight + th;
+    };
+  }
+
+  function estimateLineHeights(cm) {
+    var doc = cm.doc, est = estimateHeight(cm);
+    doc.iter(function(line) {
+      var estHeight = est(line);
+      if (estHeight != line.height) updateLineHeight(line, estHeight);
+    });
+  }
+
+  function themeChanged(cm) {
+    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+      cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+    clearCaches(cm);
+  }
+
+  function guttersChanged(cm) {
+    updateGutters(cm);
+    regChange(cm);
+    setTimeout(function(){alignHorizontally(cm);}, 20);
+  }
+
+  // Rebuild the gutter elements, ensure the margin to the left of the
+  // code matches their width.
+  function updateGutters(cm) {
+    var gutters = cm.display.gutters, specs = cm.options.gutters;
+    removeChildren(gutters);
+    for (var i = 0; i < specs.length; ++i) {
+      var gutterClass = specs[i];
+      var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
+      if (gutterClass == "CodeMirror-linenumbers") {
+        cm.display.lineGutter = gElt;
+        gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
+      }
+    }
+    gutters.style.display = i ? "" : "none";
+    updateGutterSpace(cm);
+  }
+
+  function updateGutterSpace(cm) {
+    var width = cm.display.gutters.offsetWidth;
+    cm.display.sizer.style.marginLeft = width + "px";
+  }
+
+  // Compute the character length of a line, taking into account
+  // collapsed ranges (see markText) that might hide parts, and join
+  // other lines onto it.
+  function lineLength(line) {
+    if (line.height == 0) return 0;
+    var len = line.text.length, merged, cur = line;
+    while (merged = collapsedSpanAtStart(cur)) {
+      var found = merged.find(0, true);
+      cur = found.from.line;
+      len += found.from.ch - found.to.ch;
+    }
+    cur = line;
+    while (merged = collapsedSpanAtEnd(cur)) {
+      var found = merged.find(0, true);
+      len -= cur.text.length - found.from.ch;
+      cur = found.to.line;
+      len += cur.text.length - found.to.ch;
+    }
+    return len;
+  }
+
+  // Find the longest line in the document.
+  function findMaxLine(cm) {
+    var d = cm.display, doc = cm.doc;
+    d.maxLine = getLine(doc, doc.first);
+    d.maxLineLength = lineLength(d.maxLine);
+    d.maxLineChanged = true;
+    doc.iter(function(line) {
+      var len = lineLength(line);
+      if (len > d.maxLineLength) {
+        d.maxLineLength = len;
+        d.maxLine = line;
+      }
+    });
+  }
+
+  // Make sure the gutters options contains the element
+  // "CodeMirror-linenumbers" when the lineNumbers option is true.
+  function setGuttersForLineNumbers(options) {
+    var found = indexOf(options.gutters, "CodeMirror-linenumbers");
+    if (found == -1 && options.lineNumbers) {
+      options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
+    } else if (found > -1 && !options.lineNumbers) {
+      options.gutters = options.gutters.slice(0);
+      options.gutters.splice(found, 1);
+    }
+  }
+
+  // SCROLLBARS
+
+  // Prepare DOM reads needed to update the scrollbars. Done in one
+  // shot to minimize update/measure roundtrips.
+  function measureForScrollbars(cm) {
+    var d = cm.display, gutterW = d.gutters.offsetWidth;
+    var docH = Math.round(cm.doc.height + paddingVert(cm.display));
+    return {
+      clientHeight: d.scroller.clientHeight,
+      viewHeight: d.wrapper.clientHeight,
+      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+      viewWidth: d.wrapper.clientWidth,
+      barLeft: cm.options.fixedGutter ? gutterW : 0,
+      docHeight: docH,
+      scrollHeight: docH + scrollGap(cm) + d.barHeight,
+      nativeBarWidth: d.nativeBarWidth,
+      gutterWidth: gutterW
+    };
+  }
+
+  function NativeScrollbars(place, scroll, cm) {
+    this.cm = cm;
+    var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
+    var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
+    place(vert); place(horiz);
+
+    on(vert, "scroll", function() {
+      if (vert.clientHeight) scroll(vert.scrollTop, "vertical");
+    });
+    on(horiz, "scroll", function() {
+      if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal");
+    });
+
+    this.checkedZeroWidth = false;
+    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+    if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px";
+  }
+
+  NativeScrollbars.prototype = copyObj({
+    update: function(measure) {
+      var needsH = measure.scrollWidth > measure.clientWidth + 1;
+      var needsV = measure.scrollHeight > measure.clientHeight + 1;
+      var sWidth = measure.nativeBarWidth;
+
+      if (needsV) {
+        this.vert.style.display = "block";
+        this.vert.style.bottom = needsH ? sWidth + "px" : "0";
+        var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
+        // A bug in IE8 can cause this value to be negative, so guard it.
+        this.vert.firstChild.style.height =
+          Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
+      } else {
+        this.vert.style.display = "";
+        this.vert.firstChild.style.height = "0";
+      }
+
+      if (needsH) {
+        this.horiz.style.display = "block";
+        this.horiz.style.right = needsV ? sWidth + "px" : "0";
+        this.horiz.style.left = measure.barLeft + "px";
+        var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
+        this.horiz.firstChild.style.width =
+          (measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
+      } else {
+        this.horiz.style.display = "";
+        this.horiz.firstChild.style.width = "0";
+      }
+
+      if (!this.checkedZeroWidth && measure.clientHeight > 0) {
+        if (sWidth == 0) this.zeroWidthHack();
+        this.checkedZeroWidth = true;
+      }
+
+      return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};
+    },
+    setScrollLeft: function(pos) {
+      if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
+      if (this.disableHoriz) this.enableZeroWidthBar(this.horiz, this.disableHoriz);
+    },
+    setScrollTop: function(pos) {
+      if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
+      if (this.disableVert) this.enableZeroWidthBar(this.vert, this.disableVert);
+    },
+    zeroWidthHack: function() {
+      var w = mac && !mac_geMountainLion ? "12px" : "18px";
+      this.horiz.style.height = this.vert.style.width = w;
+      this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
+      this.disableHoriz = new Delayed;
+      this.disableVert = new Delayed;
+    },
+    enableZeroWidthBar: function(bar, delay) {
+      bar.style.pointerEvents = "auto";
+      function maybeDisable() {
+        // To find out whether the scrollbar is still visible, we
+        // check whether the element under the pixel in the bottom
+        // left corner of the scrollbar box is the scrollbar box
+        // itself (when the bar is still visible) or its filler child
+        // (when the bar is hidden). If it is still visible, we keep
+        // it enabled, if it's hidden, we disable pointer events.
+        var box = bar.getBoundingClientRect();
+        var elt = document.elementFromPoint(box.left + 1, box.bottom - 1);
+        if (elt != bar) bar.style.pointerEvents = "none";
+        else delay.set(1000, maybeDisable);
+      }
+      delay.set(1000, maybeDisable);
+    },
+    clear: function() {
+      var parent = this.horiz.parentNode;
+      parent.removeChild(this.horiz);
+      parent.removeChild(this.vert);
+    }
+  }, NativeScrollbars.prototype);
+
+  function NullScrollbars() {}
+
+  NullScrollbars.prototype = copyObj({
+    update: function() { return {bottom: 0, right: 0}; },
+    setScrollLeft: function() {},
+    setScrollTop: function() {},
+    clear: function() {}
+  }, NullScrollbars.prototype);
+
+  CodeMirror.scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
+
+  function initScrollbars(cm) {
+    if (cm.display.scrollbars) {
+      cm.display.scrollbars.clear();
+      if (cm.display.scrollbars.addClass)
+        rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+    }
+
+    cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) {
+      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
+      // Prevent clicks in the scrollbars from killing focus
+      on(node, "mousedown", function() {
+        if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0);
+      });
+      node.setAttribute("cm-not-content", "true");
+    }, function(pos, axis) {
+      if (axis == "horizontal") setScrollLeft(cm, pos);
+      else setScrollTop(cm, pos);
+    }, cm);
+    if (cm.display.scrollbars.addClass)
+      addClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+  }
+
+  function updateScrollbars(cm, measure) {
+    if (!measure) measure = measureForScrollbars(cm);
+    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
+    updateScrollbarsInner(cm, measure);
+    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+        updateHeightsInViewport(cm);
+      updateScrollbarsInner(cm, measureForScrollbars(cm));
+      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
+    }
+  }
+
+  // Re-synchronize the fake scrollbars with the actual size of the
+  // content.
+  function updateScrollbarsInner(cm, measure) {
+    var d = cm.display;
+    var sizes = d.scrollbars.update(measure);
+
+    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
+    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
+    d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
+
+    if (sizes.right && sizes.bottom) {
+      d.scrollbarFiller.style.display = "block";
+      d.scrollbarFiller.style.height = sizes.bottom + "px";
+      d.scrollbarFiller.style.width = sizes.right + "px";
+    } else d.scrollbarFiller.style.display = "";
+    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+      d.gutterFiller.style.display = "block";
+      d.gutterFiller.style.height = sizes.bottom + "px";
+      d.gutterFiller.style.width = measure.gutterWidth + "px";
+    } else d.gutterFiller.style.display = "";
+  }
+
+  // Compute the lines that are visible in a given viewport (defaults
+  // the the current scroll position). viewport may contain top,
+  // height, and ensure (see op.scrollToPos) properties.
+  function visibleLines(display, doc, viewport) {
+    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
+    top = Math.floor(top - paddingTop(display));
+    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
+
+    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
+    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+    // forces those lines into the viewport (if possible).
+    if (viewport && viewport.ensure) {
+      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
+      if (ensureFrom < from) {
+        from = ensureFrom;
+        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
+      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
+        to = ensureTo;
+      }
+    }
+    return {from: from, to: Math.max(to, from + 1)};
+  }
+
+  // LINE NUMBERS
+
+  // Re-align line numbers and gutter marks to compensate for
+  // horizontal scrolling.
+  function alignHorizontally(cm) {
+    var display = cm.display, view = display.view;
+    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
+    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
+    var gutterW = display.gutters.offsetWidth, left = comp + "px";
+    for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
+      if (cm.options.fixedGutter && view[i].gutter)
+        view[i].gutter.style.left = left;
+      var align = view[i].alignable;
+      if (align) for (var j = 0; j < align.length; j++)
+        align[j].style.left = left;
+    }
+    if (cm.options.fixedGutter)
+      display.gutters.style.left = (comp + gutterW) + "px";
+  }
+
+  // Used to ensure that the line number gutter is still the right
+  // size for the current document size. Returns true when an update
+  // is needed.
+  function maybeUpdateLineNumberWidth(cm) {
+    if (!cm.options.lineNumbers) return false;
+    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
+    if (last.length != display.lineNumChars) {
+      var test = display.measure.appendChild(elt("div", [elt("div", last)],
+                                                 "CodeMirror-linenumber CodeMirror-gutter-elt"));
+      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
+      display.lineGutter.style.width = "";
+      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
+      display.lineNumWidth = display.lineNumInnerWidth + padding;
+      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
+      display.lineGutter.style.width = display.lineNumWidth + "px";
+      updateGutterSpace(cm);
+      return true;
+    }
+    return false;
+  }
+
+  function lineNumberFor(options, i) {
+    return String(options.lineNumberFormatter(i + options.firstLineNumber));
+  }
+
+  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+  // but using getBoundingClientRect to get a sub-pixel-accurate
+  // result.
+  function compensateForHScroll(display) {
+    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
+  }
+
+  // DISPLAY DRAWING
+
+  function DisplayUpdate(cm, viewport, force) {
+    var display = cm.display;
+
+    this.viewport = viewport;
+    // Store some values that we'll need later (but don't want to force a relayout for)
+    this.visible = visibleLines(display, cm.doc, viewport);
+    this.editorIsHidden = !display.wrapper.offsetWidth;
+    this.wrapperHeight = display.wrapper.clientHeight;
+    this.wrapperWidth = display.wrapper.clientWidth;
+    this.oldDisplayWidth = displayWidth(cm);
+    this.force = force;
+    this.dims = getDimensions(cm);
+    this.events = [];
+  }
+
+  DisplayUpdate.prototype.signal = function(emitter, type) {
+    if (hasHandler(emitter, type))
+      this.events.push(arguments);
+  };
+  DisplayUpdate.prototype.finish = function() {
+    for (var i = 0; i < this.events.length; i++)
+      signal.apply(null, this.events[i]);
+  };
+
+  function maybeClipScrollbars(cm) {
+    var display = cm.display;
+    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
+      display.heightForcer.style.height = scrollGap(cm) + "px";
+      display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
+      display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
+      display.scrollbarsClipped = true;
+    }
+  }
+
+  // Does the actual updating of the line display. Bails out
+  // (returning false) when there is nothing to be done and forced is
+  // false.
+  function updateDisplayIfNeeded(cm, update) {
+    var display = cm.display, doc = cm.doc;
+
+    if (update.editorIsHidden) {
+      resetView(cm);
+      return false;
+    }
+
+    // Bail out if the visible area is already rendered and nothing changed.
+    if (!update.force &&
+        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+        display.renderedView == display.view && countDirtyView(cm) == 0)
+      return false;
+
+    if (maybeUpdateLineNumberWidth(cm)) {
+      resetView(cm);
+      update.dims = getDimensions(cm);
+    }
+
+    // Compute a suitable new viewport (from & to)
+    var end = doc.first + doc.size;
+    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
+    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
+    if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
+    if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
+    if (sawCollapsedSpans) {
+      from = visualLineNo(cm.doc, from);
+      to = visualLineEndNo(cm.doc, to);
+    }
+
+    var different = from != display.viewFrom || to != display.viewTo ||
+      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
+    adjustView(cm, from, to);
+
+    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
+    // Position the mover div to align with the current scroll position
+    cm.display.mover.style.top = display.viewOffset + "px";
+
+    var toUpdate = countDirtyView(cm);
+    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+      return false;
+
+    // For big changes, we hide the enclosing element during the
+    // update, since that speeds up the operations on most browsers.
+    var focused = activeElt();
+    if (toUpdate > 4) display.lineDiv.style.display = "none";
+    patchDisplay(cm, display.updateLineNumbers, update.dims);
+    if (toUpdate > 4) display.lineDiv.style.display = "";
+    display.renderedView = display.view;
+    // There might have been a widget with a focused element that got
+    // hidden or updated, if so re-focus it.
+    if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();
+
+    // Prevent selection and cursors from interfering with the scroll
+    // width and height.
+    removeChildren(display.cursorDiv);
+    removeChildren(display.selectionDiv);
+    display.gutters.style.height = display.sizer.style.minHeight = 0;
+
+    if (different) {
+      display.lastWrapHeight = update.wrapperHeight;
+      display.lastWrapWidth = update.wrapperWidth;
+      startWorker(cm, 400);
+    }
+
+    display.updateLineNumbers = null;
+
+    return true;
+  }
+
+  function postUpdateDisplay(cm, update) {
+    var viewport = update.viewport;
+
+    for (var first = true;; first = false) {
+      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+        // Clip forced viewport to actual scrollable area.
+        if (viewport && viewport.top != null)
+          viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)};
+        // Updated line heights might result in the drawn area not
+        // actually covering the viewport. Keep looping until it does.
+        update.visible = visibleLines(cm.display, cm.doc, viewport);
+        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+          break;
+      }
+      if (!updateDisplayIfNeeded(cm, update)) break;
+      updateHeightsInViewport(cm);
+      var barMeasure = measureForScrollbars(cm);
+      updateSelection(cm);
+      updateScrollbars(cm, barMeasure);
+      setDocumentHeight(cm, barMeasure);
+    }
+
+    update.signal(cm, "update", cm);
+    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+      update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
+      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
+    }
+  }
+
+  function updateDisplaySimple(cm, viewport) {
+    var update = new DisplayUpdate(cm, viewport);
+    if (updateDisplayIfNeeded(cm, update)) {
+      updateHeightsInViewport(cm);
+      postUpdateDisplay(cm, update);
+      var barMeasure = measureForScrollbars(cm);
+      updateSelection(cm);
+      updateScrollbars(cm, barMeasure);
+      setDocumentHeight(cm, barMeasure);
+      update.finish();
+    }
+  }
+
+  function setDocumentHeight(cm, measure) {
+    cm.display.sizer.style.minHeight = measure.docHeight + "px";
+    cm.display.heightForcer.style.top = measure.docHeight + "px";
+    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
+  }
+
+  // Read the actual heights of the rendered lines, and update their
+  // stored heights to match.
+  function updateHeightsInViewport(cm) {
+    var display = cm.display;
+    var prevBottom = display.lineDiv.offsetTop;
+    for (var i = 0; i < display.view.length; i++) {
+      var cur = display.view[i], height;
+      if (cur.hidden) continue;
+      if (ie && ie_version < 8) {
+        var bot = cur.node.offsetTop + cur.node.offsetHeight;
+        height = bot - prevBottom;
+        prevBottom = bot;
+      } else {
+        var box = cur.node.getBoundingClientRect();
+        height = box.bottom - box.top;
+      }
+      var diff = cur.line.height - height;
+      if (height < 2) height = textHeight(display);
+      if (diff > .001 || diff < -.001) {
+        updateLineHeight(cur.line, height);
+        updateWidgetHeight(cur.line);
+        if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
+          updateWidgetHeight(cur.rest[j]);
+      }
+    }
+  }
+
+  // Read and store the height of line widgets associated with the
+  // given line.
+  function updateWidgetHeight(line) {
+    if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
+      line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight;
+  }
+
+  // Do a bulk-read of the DOM positions and sizes needed to draw the
+  // view, so that we don't interleave reading and writing to the DOM.
+  function getDimensions(cm) {
+    var d = cm.display, left = {}, width = {};
+    var gutterLeft = d.gutters.clientLeft;
+    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+      left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
+      width[cm.options.gutters[i]] = n.clientWidth;
+    }
+    return {fixedPos: compensateForHScroll(d),
+            gutterTotalWidth: d.gutters.offsetWidth,
+            gutterLeft: left,
+            gutterWidth: width,
+            wrapperWidth: d.wrapper.clientWidth};
+  }
+
+  // Sync the actual display DOM structure with display.view, removing
+  // nodes for lines that are no longer in view, and creating the ones
+  // that are not there yet, and updating the ones that are out of
+  // date.
+  function patchDisplay(cm, updateNumbersFrom, dims) {
+    var display = cm.display, lineNumbers = cm.options.lineNumbers;
+    var container = display.lineDiv, cur = container.firstChild;
+
+    function rm(node) {
+      var next = node.nextSibling;
+      // Works around a throw-scroll bug in OS X Webkit
+      if (webkit && mac && cm.display.currentWheelTarget == node)
+        node.style.display = "none";
+      else
+        node.parentNode.removeChild(node);
+      return next;
+    }
+
+    var view = display.view, lineN = display.viewFrom;
+    // Loop over the elements in the view, syncing cur (the DOM nodes
+    // in display.lineDiv) with the view as we go.
+    for (var i = 0; i < view.length; i++) {
+      var lineView = view[i];
+      if (lineView.hidden) {
+      } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+        var node = buildLineElement(cm, lineView, lineN, dims);
+        container.insertBefore(node, cur);
+      } else { // Already drawn
+        while (cur != lineView.node) cur = rm(cur);
+        var updateNumber = lineNumbers && updateNumbersFrom != null &&
+          updateNumbersFrom <= lineN && lineView.lineNumber;
+        if (lineView.changes) {
+          if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
+          updateLineForChanges(cm, lineView, lineN, dims);
+        }
+        if (updateNumber) {
+          removeChildren(lineView.lineNumber);
+          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
+        }
+        cur = lineView.node.nextSibling;
+      }
+      lineN += lineView.size;
+    }
+    while (cur) cur = rm(cur);
+  }
+
+  // When an aspect of a line changes, a string is added to
+  // lineView.changes. This updates the relevant part of the line's
+  // DOM structure.
+  function updateLineForChanges(cm, lineView, lineN, dims) {
+    for (var j = 0; j < lineView.changes.length; j++) {
+      var type = lineView.changes[j];
+      if (type == "text") updateLineText(cm, lineView);
+      else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
+      else if (type == "class") updateLineClasses(lineView);
+      else if (type == "widget") updateLineWidgets(cm, lineView, dims);
+    }
+    lineView.changes = null;
+  }
+
+  // Lines with gutter elements, widgets or a background class need to
+  // be wrapped, and have the extra elements added to the wrapper div
+  function ensureLineWrapped(lineView) {
+    if (lineView.node == lineView.text) {
+      lineView.node = elt("div", null, null, "position: relative");
+      if (lineView.text.parentNode)
+        lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
+      lineView.node.appendChild(lineView.text);
+      if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
+    }
+    return lineView.node;
+  }
+
+  function updateLineBackground(lineView) {
+    var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
+    if (cls) cls += " CodeMirror-linebackground";
+    if (lineView.background) {
+      if (cls) lineView.background.className = cls;
+      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
+    } else if (cls) {
+      var wrap = ensureLineWrapped(lineView);
+      lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
+    }
+  }
+
+  // Wrapper around buildLineContent which will reuse the structure
+  // in display.externalMeasured when possible.
+  function getLineContent(cm, lineView) {
+    var ext = cm.display.externalMeasured;
+    if (ext && ext.line == lineView.line) {
+      cm.display.externalMeasured = null;
+      lineView.measure = ext.measure;
+      return ext.built;
+    }
+    return buildLineContent(cm, lineView);
+  }
+
+  // Redraw the line's text. Interacts with the background and text
+  // classes because the mode may output tokens that influence these
+  // classes.
+  function updateLineText(cm, lineView) {
+    var cls = lineView.text.className;
+    var built = getLineContent(cm, lineView);
+    if (lineView.text == lineView.node) lineView.node = built.pre;
+    lineView.text.parentNode.replaceChild(built.pre, lineView.text);
+    lineView.text = built.pre;
+    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+      lineView.bgClass = built.bgClass;
+      lineView.textClass = built.textClass;
+      updateLineClasses(lineView);
+    } else if (cls) {
+      lineView.text.className = cls;
+    }
+  }
+
+  function updateLineClasses(lineView) {
+    updateLineBackground(lineView);
+    if (lineView.line.wrapClass)
+      ensureLineWrapped(lineView).className = lineView.line.wrapClass;
+    else if (lineView.node != lineView.text)
+      lineView.node.className = "";
+    var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
+    lineView.text.className = textClass || "";
+  }
+
+  function updateLineGutter(cm, lineView, lineN, dims) {
+    if (lineView.gutter) {
+      lineView.node.removeChild(lineView.gutter);
+      lineView.gutter = null;
+    }
+    if (lineView.gutterBackground) {
+      lineView.node.removeChild(lineView.gutterBackground);
+      lineView.gutterBackground = null;
+    }
+    if (lineView.line.gutterClass) {
+      var wrap = ensureLineWrapped(lineView);
+      lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+                                      "left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
+                                      "px; width: " + dims.gutterTotalWidth + "px");
+      wrap.insertBefore(lineView.gutterBackground, lineView.text);
+    }
+    var markers = lineView.line.gutterMarkers;
+    if (cm.options.lineNumbers || markers) {
+      var wrap = ensureLineWrapped(lineView);
+      var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " +
+                                             (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px");
+      cm.display.input.setUneditable(gutterWrap);
+      wrap.insertBefore(gutterWrap, lineView.text);
+      if (lineView.line.gutterClass)
+        gutterWrap.className += " " + lineView.line.gutterClass;
+      if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+        lineView.lineNumber = gutterWrap.appendChild(
+          elt("div", lineNumberFor(cm.options, lineN),
+              "CodeMirror-linenumber CodeMirror-gutter-elt",
+              "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
+              + cm.display.lineNumInnerWidth + "px"));
+      if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
+        var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
+        if (found)
+          gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
+                                     dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
+      }
+    }
+  }
+
+  function updateLineWidgets(cm, lineView, dims) {
+    if (lineView.alignable) lineView.alignable = null;
+    for (var node = lineView.node.firstChild, next; node; node = next) {
+      var next = node.nextSibling;
+      if (node.className == "CodeMirror-linewidget")
+        lineView.node.removeChild(node);
+    }
+    insertLineWidgets(cm, lineView, dims);
+  }
+
+  // Build a line's DOM representation from scratch
+  function buildLineElement(cm, lineView, lineN, dims) {
+    var built = getLineContent(cm, lineView);
+    lineView.text = lineView.node = built.pre;
+    if (built.bgClass) lineView.bgClass = built.bgClass;
+    if (built.textClass) lineView.textClass = built.textClass;
+
+    updateLineClasses(lineView);
+    updateLineGutter(cm, lineView, lineN, dims);
+    insertLineWidgets(cm, lineView, dims);
+    return lineView.node;
+  }
+
+  // A lineView may contain multiple logical lines (when merged by
+  // collapsed spans). The widgets for all of them need to be drawn.
+  function insertLineWidgets(cm, lineView, dims) {
+    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
+    if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
+      insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);
+  }
+
+  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+    if (!line.widgets) return;
+    var wrap = ensureLineWrapped(lineView);
+    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+      var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
+      if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true");
+      positionLineWidget(widget, node, lineView, dims);
+      cm.display.input.setUneditable(node);
+      if (allowAbove && widget.above)
+        wrap.insertBefore(node, lineView.gutter || lineView.text);
+      else
+        wrap.appendChild(node);
+      signalLater(widget, "redraw");
+    }
+  }
+
+  function positionLineWidget(widget, node, lineView, dims) {
+    if (widget.noHScroll) {
+      (lineView.alignable || (lineView.alignable = [])).push(node);
+      var width = dims.wrapperWidth;
+      node.style.left = dims.fixedPos + "px";
+      if (!widget.coverGutter) {
+        width -= dims.gutterTotalWidth;
+        node.style.paddingLeft = dims.gutterTotalWidth + "px";
+      }
+      node.style.width = width + "px";
+    }
+    if (widget.coverGutter) {
+      node.style.zIndex = 5;
+      node.style.position = "relative";
+      if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
+    }
+  }
+
+  // POSITION OBJECT
+
+  // A Pos instance represents a position within the text.
+  var Pos = CodeMirror.Pos = function(line, ch) {
+    if (!(this instanceof Pos)) return new Pos(line, ch);
+    this.line = line; this.ch = ch;
+  };
+
+  // Compare two positions, return 0 if they are the same, a negative
+  // number when a is less, and a positive number otherwise.
+  var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };
+
+  function copyPos(x) {return Pos(x.line, x.ch);}
+  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
+  function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }
+
+  // INPUT HANDLING
+
+  function ensureFocus(cm) {
+    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
+  }
+
+  // This will be set to a {lineWise: bool, text: [string]} object, so
+  // that, when pasting, we know what kind of selections the copied
+  // text was made out of.
+  var lastCopied = null;
+
+  function applyTextInput(cm, inserted, deleted, sel, origin) {
+    var doc = cm.doc;
+    cm.display.shift = false;
+    if (!sel) sel = doc.sel;
+
+    var paste = cm.state.pasteIncoming || origin == "paste";
+    var textLines = doc.splitLines(inserted), multiPaste = null
+    // When pasing N lines into N selections, insert one line per selection
+    if (paste && sel.ranges.length > 1) {
+      if (lastCopied && lastCopied.text.join("\n") == inserted) {
+        if (sel.ranges.length % lastCopied.text.length == 0) {
+          multiPaste = [];
+          for (var i = 0; i < lastCopied.text.length; i++)
+            multiPaste.push(doc.splitLines(lastCopied.text[i]));
+        }
+      } else if (textLines.length == sel.ranges.length) {
+        multiPaste = map(textLines, function(l) { return [l]; });
+      }
+    }
+
+    // Normal behavior is to insert the new text into every selection
+    for (var i = sel.ranges.length - 1; i >= 0; i--) {
+      var range = sel.ranges[i];
+      var from = range.from(), to = range.to();
+      if (range.empty()) {
+        if (deleted && deleted > 0) // Handle deletion
+          from = Pos(from.line, from.ch - deleted);
+        else if (cm.state.overwrite && !paste) // Handle overwrite
+          to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
+        else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
+          from = to = Pos(from.line, 0)
+      }
+      var updateInput = cm.curOp.updateInput;
+      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
+                         origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")};
+      makeChange(cm.doc, changeEvent);
+      signalLater(cm, "inputRead", cm, changeEvent);
+    }
+    if (inserted && !paste)
+      triggerElectric(cm, inserted);
+
+    ensureCursorVisible(cm);
+    cm.curOp.updateInput = updateInput;
+    cm.curOp.typing = true;
+    cm.state.pasteIncoming = cm.state.cutIncoming = false;
+  }
+
+  function handlePaste(e, cm) {
+    var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
+    if (pasted) {
+      e.preventDefault();
+      if (!cm.isReadOnly() && !cm.options.disableInput)
+        runInOp(cm, function() { applyTextInput(cm, pasted, 0, null, "paste"); });
+      return true;
+    }
+  }
+
+  function triggerElectric(cm, inserted) {
+    // When an 'electric' character is inserted, immediately trigger a reindent
+    if (!cm.options.electricChars || !cm.options.smartIndent) return;
+    var sel = cm.doc.sel;
+
+    for (var i = sel.ranges.length - 1; i >= 0; i--) {
+      var range = sel.ranges[i];
+      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue;
+      var mode = cm.getModeAt(range.head);
+      var indented = false;
+      if (mode.electricChars) {
+        for (var j = 0; j < mode.electricChars.length; j++)
+          if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+            indented = indentLine(cm, range.head.line, "smart");
+            break;
+          }
+      } else if (mode.electricInput) {
+        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+          indented = indentLine(cm, range.head.line, "smart");
+      }
+      if (indented) signalLater(cm, "electricInput", cm, range.head.line);
+    }
+  }
+
+  function copyableRanges(cm) {
+    var text = [], ranges = [];
+    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+      var line = cm.doc.sel.ranges[i].head.line;
+      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
+      ranges.push(lineRange);
+      text.push(cm.getRange(lineRange.anchor, lineRange.head));
+    }
+    return {text: text, ranges: ranges};
+  }
+
+  function disableBrowserMagic(field) {
+    field.setAttribute("autocorrect", "off");
+    field.setAttribute("autocapitalize", "off");
+    field.setAttribute("spellcheck", "false");
+  }
+
+  // TEXTAREA INPUT STYLE
+
+  function TextareaInput(cm) {
+    this.cm = cm;
+    // See input.poll and input.reset
+    this.prevInput = "";
+
+    // Flag that indicates whether we expect input to appear real soon
+    // now (after some event like 'keypress' or 'input') and are
+    // polling intensively.
+    this.pollingFast = false;
+    // Self-resetting timeout for the poller
+    this.polling = new Delayed();
+    // Tracks when input.reset has punted to just putting a short
+    // string into the textarea instead of the full selection.
+    this.inaccurateSelection = false;
+    // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+    this.hasSelection = false;
+    this.composing = null;
+  };
+
+  function hiddenTextarea() {
+    var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none");
+    var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
+    // The textarea is kept positioned near the cursor to prevent the
+    // fact that it'll be scrolled into view on input from scrolling
+    // our fake cursor out of view. On webkit, when wrap=off, paste is
+    // very slow. So make the area wide instead.
+    if (webkit) te.style.width = "1000px";
+    else te.setAttribute("wrap", "off");
+    // If border: 0; -- iOS fails to open keyboard (issue #1287)
+    if (ios) te.style.border = "1px solid black";
+    disableBrowserMagic(te);
+    return div;
+  }
+
+  TextareaInput.prototype = copyObj({
+    init: function(display) {
+      var input = this, cm = this.cm;
+
+      // Wraps and hides input textarea
+      var div = this.wrapper = hiddenTextarea();
+      // The semihidden textarea that is focused when the editor is
+      // focused, and receives input.
+      var te = this.textarea = div.firstChild;
+      display.wrapper.insertBefore(div, display.wrapper.firstChild);
+
+      // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+      if (ios) te.style.width = "0px";
+
+      on(te, "input", function() {
+        if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null;
+        input.poll();
+      });
+
+      on(te, "paste", function(e) {
+        if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return
+
+        cm.state.pasteIncoming = true;
+        input.fastPoll();
+      });
+
+      function prepareCopyCut(e) {
+        if (signalDOMEvent(cm, e)) return
+        if (cm.somethingSelected()) {
+          lastCopied = {lineWise: false, text: cm.getSelections()};
+          if (input.inaccurateSelection) {
+            input.prevInput = "";
+            input.inaccurateSelection = false;
+            te.value = lastCopied.text.join("\n");
+            selectInput(te);
+          }
+        } else if (!cm.options.lineWiseCopyCut) {
+          return;
+        } else {
+          var ranges = copyableRanges(cm);
+          lastCopied = {lineWise: true, text: ranges.text};
+          if (e.type == "cut") {
+            cm.setSelections(ranges.ranges, null, sel_dontScroll);
+          } else {
+            input.prevInput = "";
+            te.value = ranges.text.join("\n");
+            selectInput(te);
+          }
+        }
+        if (e.type == "cut") cm.state.cutIncoming = true;
+      }
+      on(te, "cut", prepareCopyCut);
+      on(te, "copy", prepareCopyCut);
+
+      on(display.scroller, "paste", function(e) {
+        if (eventInWidget(display, e) || signalDOMEvent(cm, e)) return;
+        cm.state.pasteIncoming = true;
+        input.focus();
+      });
+
+      // Prevent normal selection in the editor (we handle our own)
+      on(display.lineSpace, "selectstart", function(e) {
+        if (!eventInWidget(display, e)) e_preventDefault(e);
+      });
+
+      on(te, "compositionstart", function() {
+        var start = cm.getCursor("from");
+        if (input.composing) input.composing.range.clear()
+        input.composing = {
+          start: start,
+          range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+        };
+      });
+      on(te, "compositionend", function() {
+        if (input.composing) {
+          input.poll();
+          input.composing.range.clear();
+          input.composing = null;
+        }
+      });
+    },
+
+    prepareSelection: function() {
+      // Redraw the selection and/or cursor
+      var cm = this.cm, display = cm.display, doc = cm.doc;
+      var result = prepareSelection(cm);
+
+      // Move the hidden textarea near the cursor to prevent scrolling artifacts
+      if (cm.options.moveInputWithCursor) {
+        var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
+        var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
+        result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+                                            headPos.top + lineOff.top - wrapOff.top));
+        result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+                                             headPos.left + lineOff.left - wrapOff.left));
+      }
+
+      return result;
+    },
+
+    showSelection: function(drawn) {
+      var cm = this.cm, display = cm.display;
+      removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
+      removeChildrenAndAdd(display.selectionDiv, drawn.selection);
+      if (drawn.teTop != null) {
+        this.wrapper.style.top = drawn.teTop + "px";
+        this.wrapper.style.left = drawn.teLeft + "px";
+      }
+    },
+
+    // Reset the input to correspond to the selection (or to be empty,
+    // when not typing and nothing is selected)
+    reset: function(typing) {
+      if (this.contextMenuPending) return;
+      var minimal, selected, cm = this.cm, doc = cm.doc;
+      if (cm.somethingSelected()) {
+        this.prevInput = "";
+        var range = doc.sel.primary();
+        minimal = hasCopyEvent &&
+          (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
+        var content = minimal ? "-" : selected || cm.getSelection();
+        this.textarea.value = content;
+        if (cm.state.focused) selectInput(this.textarea);
+        if (ie && ie_version >= 9) this.hasSelection = content;
+      } else if (!typing) {
+        this.prevInput = this.textarea.value = "";
+        if (ie && ie_version >= 9) this.hasSelection = null;
+      }
+      this.inaccurateSelection = minimal;
+    },
+
+    getField: function() { return this.textarea; },
+
+    supportsTouch: function() { return false; },
+
+    focus: function() {
+      if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+        try { this.textarea.focus(); }
+        catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+      }
+    },
+
+    blur: function() { this.textarea.blur(); },
+
+    resetPosition: function() {
+      this.wrapper.style.top = this.wrapper.style.left = 0;
+    },
+
+    receivedFocus: function() { this.slowPoll(); },
+
+    // Poll for input changes, using the normal rate of polling. This
+    // runs as long as the editor is focused.
+    slowPoll: function() {
+      var input = this;
+      if (input.pollingFast) return;
+      input.polling.set(this.cm.options.pollInterval, function() {
+        input.poll();
+        if (input.cm.state.focused) input.slowPoll();
+      });
+    },
+
+    // When an event has just come in that is likely to add or change
+    // something in the input textarea, we poll faster, to ensure that
+    // the change appears on the screen quickly.
+    fastPoll: function() {
+      var missed = false, input = this;
+      input.pollingFast = true;
+      function p() {
+        var changed = input.poll();
+        if (!changed && !missed) {missed = true; input.polling.set(60, p);}
+        else {input.pollingFast = false; input.slowPoll();}
+      }
+      input.polling.set(20, p);
+    },
+
+    // Read input from the textarea, and update the document to match.
+    // When something is selected, it is present in the textarea, and
+    // selected (unless it is huge, in which case a placeholder is
+    // used). When nothing is selected, the cursor sits after previously
+    // seen text (can be empty), which is stored in prevInput (we must
+    // not reset the textarea when typing, because that breaks IME).
+    poll: function() {
+      var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
+      // Since this is called a *lot*, try to bail out as cheaply as
+      // possible when it is clear that nothing happened. hasSelection
+      // will be the case when there is a lot of text in the textarea,
+      // in which case reading its value would be expensive.
+      if (this.contextMenuPending || !cm.state.focused ||
+          (hasSelection(input) && !prevInput && !this.composing) ||
+          cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
+        return false;
+
+      var text = input.value;
+      // If nothing changed, bail.
+      if (text == prevInput && !cm.somethingSelected()) return false;
+      // Work around nonsensical selection resetting in IE9/10, and
+      // inexplicable appearance of private area unicode characters on
+      // some key combos in Mac (#2689).
+      if (ie && ie_version >= 9 && this.hasSelection === text ||
+          mac && /[\uf700-\uf7ff]/.test(text)) {
+        cm.display.input.reset();
+        return false;
+      }
+
+      if (cm.doc.sel == cm.display.selForContextMenu) {
+        var first = text.charCodeAt(0);
+        if (first == 0x200b && !prevInput) prevInput = "\u200b";
+        if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); }
+      }
+      // Find the part of the input that is actually new
+      var same = 0, l = Math.min(prevInput.length, text.length);
+      while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
+
+      var self = this;
+      runInOp(cm, function() {
+        applyTextInput(cm, text.slice(same), prevInput.length - same,
+                       null, self.composing ? "*compose" : null);
+
+        // Don't leave long text in the textarea, since it makes further polling slow
+        if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = "";
+        else self.prevInput = text;
+
+        if (self.composing) {
+          self.composing.range.clear();
+          self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"),
+                                             {className: "CodeMirror-composing"});
+        }
+      });
+      return true;
+    },
+
+    ensurePolled: function() {
+      if (this.pollingFast && this.poll()) this.pollingFast = false;
+    },
+
+    onKeyPress: function() {
+      if (ie && ie_version >= 9) this.hasSelection = null;
+      this.fastPoll();
+    },
+
+    onContextMenu: function(e) {
+      var input = this, cm = input.cm, display = cm.display, te = input.textarea;
+      var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
+      if (!pos || presto) return; // Opera is difficult.
+
+      // Reset the current text selection only if the click is done outside of the selection
+      // and 'resetSelectionOnContextMenu' option is true.
+      var reset = cm.options.resetSelectionOnContextMenu;
+      if (reset && cm.doc.sel.contains(pos) == -1)
+        operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);
+
+      var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
+      input.wrapper.style.cssText = "position: absolute"
+      var wrapperBox = input.wrapper.getBoundingClientRect()
+      te.style.cssText = "position: absolute; width: 30px; height: 30px; top: " + (e.clientY - wrapperBox.top - 5) +
+        "px; left: " + (e.clientX - wrapperBox.left - 5) + "px; z-index: 1000; background: " +
+        (ie ? "rgba(255, 255, 255, .05)" : "transparent") +
+        "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
+      if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
+      display.input.focus();
+      if (webkit) window.scrollTo(null, oldScrollY);
+      display.input.reset();
+      // Adds "Select all" to context menu in FF
+      if (!cm.somethingSelected()) te.value = input.prevInput = " ";
+      input.contextMenuPending = true;
+      display.selForContextMenu = cm.doc.sel;
+      clearTimeout(display.detectingSelectAll);
+
+      // Select-all will be greyed out if there's nothing to select, so
+      // this adds a zero-width space so that we can later check whether
+      // it got selected.
+      function prepareSelectAllHack() {
+        if (te.selectionStart != null) {
+          var selected = cm.somethingSelected();
+          var extval = "\u200b" + (selected ? te.value : "");
+          te.value = "\u21da"; // Used to catch context-menu undo
+          te.value = extval;
+          input.prevInput = selected ? "" : "\u200b";
+          te.selectionStart = 1; te.selectionEnd = extval.length;
+          // Re-set this, in case some other handler touched the
+          // selection in the meantime.
+          display.selForContextMenu = cm.doc.sel;
+        }
+      }
+      function rehide() {
+        input.contextMenuPending = false;
+        input.wrapper.style.cssText = oldWrapperCSS
+        te.style.cssText = oldCSS;
+        if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos);
+
+        // Try to detect the user choosing select-all
+        if (te.selectionStart != null) {
+          if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
+          var i = 0, poll = function() {
+            if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+                te.selectionEnd > 0 && input.prevInput == "\u200b")
+              operation(cm, commands.selectAll)(cm);
+            else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
+            else display.input.reset();
+          };
+          display.detectingSelectAll = setTimeout(poll, 200);
+        }
+      }
+
+      if (ie && ie_version >= 9) prepareSelectAllHack();
+      if (captureRightClick) {
+        e_stop(e);
+        var mouseup = function() {
+          off(window, "mouseup", mouseup);
+          setTimeout(rehide, 20);
+        };
+        on(window, "mouseup", mouseup);
+      } else {
+        setTimeout(rehide, 50);
+      }
+    },
+
+    readOnlyChanged: function(val) {
+      if (!val) this.reset();
+    },
+
+    setUneditable: nothing,
+
+    needsContentAttribute: false
+  }, TextareaInput.prototype);
+
+  // CONTENTEDITABLE INPUT STYLE
+
+  function ContentEditableInput(cm) {
+    this.cm = cm;
+    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
+    this.polling = new Delayed();
+    this.gracePeriod = false;
+  }
+
+  ContentEditableInput.prototype = copyObj({
+    init: function(display) {
+      var input = this, cm = input.cm;
+      var div = input.div = display.lineDiv;
+      disableBrowserMagic(div);
+
+      on(div, "paste", function(e) {
+        if (!signalDOMEvent(cm, e)) handlePaste(e, cm);
+      })
+
+      on(div, "compositionstart", function(e) {
+        var data = e.data;
+        input.composing = {sel: cm.doc.sel, data: data, startData: data};
+        if (!data) return;
+        var prim = cm.doc.sel.primary();
+        var line = cm.getLine(prim.head.line);
+        var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length));
+        if (found > -1 && found <= prim.head.ch)
+          input.composing.sel = simpleSelection(Pos(prim.head.line, found),
+                                                Pos(prim.head.line, found + data.length));
+      });
+      on(div, "compositionupdate", function(e) {
+        input.composing.data = e.data;
+      });
+      on(div, "compositionend", function(e) {
+        var ours = input.composing;
+        if (!ours) return;
+        if (e.data != ours.startData && !/\u200b/.test(e.data))
+          ours.data = e.data;
+        // Need a small delay to prevent other code (input event,
+        // selection polling) from doing damage when fired right after
+        // compositionend.
+        setTimeout(function() {
+          if (!ours.handled)
+            input.applyComposition(ours);
+          if (input.composing == ours)
+            input.composing = null;
+        }, 50);
+      });
+
+      on(div, "touchstart", function() {
+        input.forceCompositionEnd();
+      });
+
+      on(div, "input", function() {
+        if (input.composing) return;
+        if (cm.isReadOnly() || !input.pollContent())
+          runInOp(input.cm, function() {regChange(cm);});
+      });
+
+      function onCopyCut(e) {
+        if (signalDOMEvent(cm, e)) return
+        if (cm.somethingSelected()) {
+          lastCopied = {lineWise: false, text: cm.getSelections()};
+          if (e.type == "cut") cm.replaceSelection("", null, "cut");
+        } else if (!cm.options.lineWiseCopyCut) {
+          return;
+        } else {
+          var ranges = copyableRanges(cm);
+          lastCopied = {lineWise: true, text: ranges.text};
+          if (e.type == "cut") {
+            cm.operation(function() {
+              cm.setSelections(ranges.ranges, 0, sel_dontScroll);
+              cm.replaceSelection("", null, "cut");
+            });
+          }
+        }
+        // iOS exposes the clipboard API, but seems to discard content inserted into it
+        if (e.clipboardData && !ios) {
+          e.preventDefault();
+          e.clipboardData.clearData();
+          e.clipboardData.setData("text/plain", lastCopied.text.join("\n"));
+        } else {
+          // Old-fashioned briefly-focus-a-textarea hack
+          var kludge = hiddenTextarea(), te = kludge.firstChild;
+          cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
+          te.value = lastCopied.text.join("\n");
+          var hadFocus = document.activeElement;
+          selectInput(te);
+          setTimeout(function() {
+            cm.display.lineSpace.removeChild(kludge);
+            hadFocus.focus();
+          }, 50);
+        }
+      }
+      on(div, "copy", onCopyCut);
+      on(div, "cut", onCopyCut);
+    },
+
+    prepareSelection: function() {
+      var result = prepareSelection(this.cm, false);
+      result.focus = this.cm.state.focused;
+      return result;
+    },
+
+    showSelection: function(info, takeFocus) {
+      if (!info || !this.cm.display.view.length) return;
+      if (info.focus || takeFocus) this.showPrimarySelection();
+      this.showMultipleSelections(info);
+    },
+
+    showPrimarySelection: function() {
+      var sel = window.getSelection(), prim = this.cm.doc.sel.primary();
+      var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);
+      var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);
+      if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+          cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
+          cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
+        return;
+
+      var start = posToDOM(this.cm, prim.from());
+      var end = posToDOM(this.cm, prim.to());
+      if (!start && !end) return;
+
+      var view = this.cm.display.view;
+      var old = sel.rangeCount && sel.getRangeAt(0);
+      if (!start) {
+        start = {node: view[0].measure.map[2], offset: 0};
+      } else if (!end) { // FIXME dangerously hacky
+        var measure = view[view.length - 1].measure;
+        var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
+        end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
+      }
+
+      try { var rng = range(start.node, start.offset, end.offset, end.node); }
+      catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+      if (rng) {
+        if (!gecko && this.cm.state.focused) {
+          sel.collapse(start.node, start.offset);
+          if (!rng.collapsed) sel.addRange(rng);
+        } else {
+          sel.removeAllRanges();
+          sel.addRange(rng);
+        }
+        if (old && sel.anchorNode == null) sel.addRange(old);
+        else if (gecko) this.startGracePeriod();
+      }
+      this.rememberSelection();
+    },
+
+    startGracePeriod: function() {
+      var input = this;
+      clearTimeout(this.gracePeriod);
+      this.gracePeriod = setTimeout(function() {
+        input.gracePeriod = false;
+        if (input.selectionChanged())
+          input.cm.operation(function() { input.cm.curOp.selectionChanged = true; });
+      }, 20);
+    },
+
+    showMultipleSelections: function(info) {
+      removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
+      removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
+    },
+
+    rememberSelection: function() {
+      var sel = window.getSelection();
+      this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
+      this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
+    },
+
+    selectionInEditor: function() {
+      var sel = window.getSelection();
+      if (!sel.rangeCount) return false;
+      var node = sel.getRangeAt(0).commonAncestorContainer;
+      return contains(this.div, node);
+    },
+
+    focus: function() {
+      if (this.cm.options.readOnly != "nocursor") this.div.focus();
+    },
+    blur: function() { this.div.blur(); },
+    getField: function() { return this.div; },
+
+    supportsTouch: function() { return true; },
+
+    receivedFocus: function() {
+      var input = this;
+      if (this.selectionInEditor())
+        this.pollSelection();
+      else
+        runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; });
+
+      function poll() {
+        if (input.cm.state.focused) {
+          input.pollSelection();
+          input.polling.set(input.cm.options.pollInterval, poll);
+        }
+      }
+      this.polling.set(this.cm.options.pollInterval, poll);
+    },
+
+    selectionChanged: function() {
+      var sel = window.getSelection();
+      return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+        sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset;
+    },
+
+    pollSelection: function() {
+      if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
+        var sel = window.getSelection(), cm = this.cm;
+        this.rememberSelection();
+        var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+        var head = domToPos(cm, sel.focusNode, sel.focusOffset);
+        if (anchor && head) runInOp(cm, function() {
+          setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
+          if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;
+        });
+      }
+    },
+
+    pollContent: function() {
+      var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
+      var from = sel.from(), to = sel.to();
+      if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false;
+
+      var fromIndex;
+      if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+        var fromLine = lineNo(display.view[0].line);
+        var fromNode = display.view[0].node;
+      } else {
+        var fromLine = lineNo(display.view[fromIndex].line);
+        var fromNode = display.view[fromIndex - 1].node.nextSibling;
+      }
+      var toIndex = findViewIndex(cm, to.line);
+      if (toIndex == display.view.length - 1) {
+        var toLine = display.viewTo - 1;
+        var toNode = display.lineDiv.lastChild;
+      } else {
+        var toLine = lineNo(display.view[toIndex + 1].line) - 1;
+        var toNode = display.view[toIndex + 1].node.previousSibling;
+      }
+
+      var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
+      var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
+      while (newText.length > 1 && oldText.length > 1) {
+        if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
+        else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
+        else break;
+      }
+
+      var cutFront = 0, cutEnd = 0;
+      var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
+      while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+        ++cutFront;
+      var newBot = lst(newText), oldBot = lst(oldText);
+      var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+                               oldBot.length - (oldText.length == 1 ? cutFront : 0));
+      while (cutEnd < maxCutEnd &&
+             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+        ++cutEnd;
+
+      newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);
+      newText[0] = newText[0].slice(cutFront);
+
+      var chFrom = Pos(fromLine, cutFront);
+      var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
+      if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+        replaceRange(cm.doc, newText, chFrom, chTo, "+input");
+        return true;
+      }
+    },
+
+    ensurePolled: function() {
+      this.forceCompositionEnd();
+    },
+    reset: function() {
+      this.forceCompositionEnd();
+    },
+    forceCompositionEnd: function() {
+      if (!this.composing || this.composing.handled) return;
+      this.applyComposition(this.composing);
+      this.composing.handled = true;
+      this.div.blur();
+      this.div.focus();
+    },
+    applyComposition: function(composing) {
+      if (this.cm.isReadOnly())
+        operation(this.cm, regChange)(this.cm)
+      else if (composing.data && composing.data != composing.startData)
+        operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel);
+    },
+
+    setUneditable: function(node) {
+      node.contentEditable = "false"
+    },
+
+    onKeyPress: function(e) {
+      e.preventDefault();
+      if (!this.cm.isReadOnly())
+        operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0);
+    },
+
+    readOnlyChanged: function(val) {
+      this.div.contentEditable = String(val != "nocursor")
+    },
+
+    onContextMenu: nothing,
+    resetPosition: nothing,
+
+    needsContentAttribute: true
+  }, ContentEditableInput.prototype);
+
+  function posToDOM(cm, pos) {
+    var view = findViewForLine(cm, pos.line);
+    if (!view || view.hidden) return null;
+    var line = getLine(cm.doc, pos.line);
+    var info = mapFromLineView(view, line, pos.line);
+
+    var order = getOrder(line), side = "left";
+    if (order) {
+      var partPos = getBidiPartAt(order, pos.ch);
+      side = partPos % 2 ? "right" : "left";
+    }
+    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
+    result.offset = result.collapse == "right" ? result.end : result.start;
+    return result;
+  }
+
+  function badPos(pos, bad) { if (bad) pos.bad = true; return pos; }
+
+  function domToPos(cm, node, offset) {
+    var lineNode;
+    if (node == cm.display.lineDiv) {
+      lineNode = cm.display.lineDiv.childNodes[offset];
+      if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);
+      node = null; offset = 0;
+    } else {
+      for (lineNode = node;; lineNode = lineNode.parentNode) {
+        if (!lineNode || lineNode == cm.display.lineDiv) return null;
+        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break;
+      }
+    }
+    for (var i = 0; i < cm.display.view.length; i++) {
+      var lineView = cm.display.view[i];
+      if (lineView.node == lineNode)
+        return locateNodeInLineView(lineView, node, offset);
+    }
+  }
+
+  function locateNodeInLineView(lineView, node, offset) {
+    var wrapper = lineView.text.firstChild, bad = false;
+    if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true);
+    if (node == wrapper) {
+      bad = true;
+      node = wrapper.childNodes[offset];
+      offset = 0;
+      if (!node) {
+        var line = lineView.rest ? lst(lineView.rest) : lineView.line;
+        return badPos(Pos(lineNo(line), line.text.length), bad);
+      }
+    }
+
+    var textNode = node.nodeType == 3 ? node : null, topNode = node;
+    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+      textNode = node.firstChild;
+      if (offset) offset = textNode.nodeValue.length;
+    }
+    while (topNode.parentNode != wrapper) topNode = topNode.parentNode;
+    var measure = lineView.measure, maps = measure.maps;
+
+    function find(textNode, topNode, offset) {
+      for (var i = -1; i < (maps ? maps.length : 0); i++) {
+        var map = i < 0 ? measure.map : maps[i];
+        for (var j = 0; j < map.length; j += 3) {
+          var curNode = map[j + 2];
+          if (curNode == textNode || curNode == topNode) {
+            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
+            var ch = map[j] + offset;
+            if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)];
+            return Pos(line, ch);
+          }
+        }
+      }
+    }
+    var found = find(textNode, topNode, offset);
+    if (found) return badPos(found, bad);
+
+    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+      found = find(after, after.firstChild, 0);
+      if (found)
+        return badPos(Pos(found.line, found.ch - dist), bad);
+      else
+        dist += after.textContent.length;
+    }
+    for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
+      found = find(before, before.firstChild, -1);
+      if (found)
+        return badPos(Pos(found.line, found.ch + dist), bad);
+      else
+        dist += after.textContent.length;
+    }
+  }
+
+  function domTextBetween(cm, from, to, fromLine, toLine) {
+    var text = "", closing = false, lineSep = cm.doc.lineSeparator();
+    function recognizeMarker(id) { return function(marker) { return marker.id == id; }; }
+    function walk(node) {
+      if (node.nodeType == 1) {
+        var cmText = node.getAttribute("cm-text");
+        if (cmText != null) {
+          if (cmText == "") cmText = node.textContent.replace(/\u200b/g, "");
+          text += cmText;
+          return;
+        }
+        var markerID = node.getAttribute("cm-marker"), range;
+        if (markerID) {
+          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
+          if (found.length && (range = found[0].find()))
+            text += getBetween(cm.doc, range.from, range.to).join(lineSep);
+          return;
+        }
+        if (node.getAttribute("contenteditable") == "false") return;
+        for (var i = 0; i < node.childNodes.length; i++)
+          walk(node.childNodes[i]);
+        if (/^(pre|div|p)$/i.test(node.nodeName))
+          closing = true;
+      } else if (node.nodeType == 3) {
+        var val = node.nodeValue;
+        if (!val) return;
+        if (closing) {
+          text += lineSep;
+          closing = false;
+        }
+        text += val;
+      }
+    }
+    for (;;) {
+      walk(from);
+      if (from == to) break;
+      from = from.nextSibling;
+    }
+    return text;
+  }
+
+  CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
+
+  // SELECTION / CURSOR
+
+  // Selection objects are immutable. A new one is created every time
+  // the selection changes. A selection is one or more non-overlapping
+  // (and non-touching) ranges, sorted, and an integer that indicates
+  // which one is the primary selection (the one that's scrolled into
+  // view, that getCursor returns, etc).
+  function Selection(ranges, primIndex) {
+    this.ranges = ranges;
+    this.primIndex = primIndex;
+  }
+
+  Selection.prototype = {
+    primary: function() { return this.ranges[this.primIndex]; },
+    equals: function(other) {
+      if (other == this) return true;
+      if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
+      for (var i = 0; i < this.ranges.length; i++) {
+        var here = this.ranges[i], there = other.ranges[i];
+        if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
+      }
+      return true;
+    },
+    deepCopy: function() {
+      for (var out = [], i = 0; i < this.ranges.length; i++)
+        out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
+      return new Selection(out, this.primIndex);
+    },
+    somethingSelected: function() {
+      for (var i = 0; i < this.ranges.length; i++)
+        if (!this.ranges[i].empty()) return true;
+      return false;
+    },
+    contains: function(pos, end) {
+      if (!end) end = pos;
+      for (var i = 0; i < this.ranges.length; i++) {
+        var range = this.ranges[i];
+        if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+          return i;
+      }
+      return -1;
+    }
+  };
+
+  function Range(anchor, head) {
+    this.anchor = anchor; this.head = head;
+  }
+
+  Range.prototype = {
+    from: function() { return minPos(this.anchor, this.head); },
+    to: function() { return maxPos(this.anchor, this.head); },
+    empty: function() {
+      return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
+    }
+  };
+
+  // Take an unsorted, potentially overlapping set of ranges, and
+  // build a selection out of it. 'Consumes' ranges array (modifying
+  // it).
+  function normalizeSelection(ranges, primIndex) {
+    var prim = ranges[primIndex];
+    ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
+    primIndex = indexOf(ranges, prim);
+    for (var i = 1; i < ranges.length; i++) {
+      var cur = ranges[i], prev = ranges[i - 1];
+      if (cmp(prev.to(), cur.from()) >= 0) {
+        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
+        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
+        if (i <= primIndex) --primIndex;
+        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
+      }
+    }
+    return new Selection(ranges, primIndex);
+  }
+
+  function simpleSelection(anchor, head) {
+    return new Selection([new Range(anchor, head || anchor)], 0);
+  }
+
+  // Most of the external API clips given positions to make sure they
+  // actually exist within the document.
+  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
+  function clipPos(doc, pos) {
+    if (pos.line < doc.first) return Pos(doc.first, 0);
+    var last = doc.first + doc.size - 1;
+    if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
+    return clipToLen(pos, getLine(doc, pos.line).text.length);
+  }
+  function clipToLen(pos, linelen) {
+    var ch = pos.ch;
+    if (ch == null || ch > linelen) return Pos(pos.line, linelen);
+    else if (ch < 0) return Pos(pos.line, 0);
+    else return pos;
+  }
+  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
+  function clipPosArray(doc, array) {
+    for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
+    return out;
+  }
+
+  // SELECTION UPDATES
+
+  // The 'scroll' parameter given to many of these indicated whether
+  // the new cursor position should be scrolled into view after
+  // modifying the selection.
+
+  // If shift is held or the extend flag is set, extends a range to
+  // include a given position (and optionally a second position).
+  // Otherwise, simply returns the range between the given positions.
+  // Used for cursor motion and such.
+  function extendRange(doc, range, head, other) {
+    if (doc.cm && doc.cm.display.shift || doc.extend) {
+      var anchor = range.anchor;
+      if (other) {
+        var posBefore = cmp(head, anchor) < 0;
+        if (posBefore != (cmp(other, anchor) < 0)) {
+          anchor = head;
+          head = other;
+        } else if (posBefore != (cmp(head, other) < 0)) {
+          head = other;
+        }
+      }
+      return new Range(anchor, head);
+    } else {
+      return new Range(other || head, head);
+    }
+  }
+
+  // Extend the primary selection range, discard the rest.
+  function extendSelection(doc, head, other, options) {
+    setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
+  }
+
+  // Extend all selections (pos is an array of selections with length
+  // equal the number of selections)
+  function extendSelections(doc, heads, options) {
+    for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
+      out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
+    var newSel = normalizeSelection(out, doc.sel.primIndex);
+    setSelection(doc, newSel, options);
+  }
+
+  // Updates a single range in the selection.
+  function replaceOneSelection(doc, i, range, options) {
+    var ranges = doc.sel.ranges.slice(0);
+    ranges[i] = range;
+    setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
+  }
+
+  // Reset the selection to a single range.
+  function setSimpleSelection(doc, anchor, head, options) {
+    setSelection(doc, simpleSelection(anchor, head), options);
+  }
+
+  // Give beforeSelectionChange handlers a change to influence a
+  // selection update.
+  function filterSelectionChange(doc, sel, options) {
+    var obj = {
+      ranges: sel.ranges,
+      update: function(ranges) {
+        this.ranges = [];
+        for (var i = 0; i < ranges.length; i++)
+          this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+                                     clipPos(doc, ranges[i].head));
+      },
+      origin: options && options.origin
+    };
+    signal(doc, "beforeSelectionChange", doc, obj);
+    if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
+    if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
+    else return sel;
+  }
+
+  function setSelectionReplaceHistory(doc, sel, options) {
+    var done = doc.history.done, last = lst(done);
+    if (last && last.ranges) {
+      done[done.length - 1] = sel;
+      setSelectionNoUndo(doc, sel, options);
+    } else {
+      setSelection(doc, sel, options);
+    }
+  }
+
+  // Set a new selection.
+  function setSelection(doc, sel, options) {
+    setSelectionNoUndo(doc, sel, options);
+    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
+  }
+
+  function setSelectionNoUndo(doc, sel, options) {
+    if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+      sel = filterSelectionChange(doc, sel, options);
+
+    var bias = options && options.bias ||
+      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
+    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
+
+    if (!(options && options.scroll === false) && doc.cm)
+      ensureCursorVisible(doc.cm);
+  }
+
+  function setSelectionInner(doc, sel) {
+    if (sel.equals(doc.sel)) return;
+
+    doc.sel = sel;
+
+    if (doc.cm) {
+      doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
+      signalCursorActivity(doc.cm);
+    }
+    signalLater(doc, "cursorActivity", doc);
+  }
+
+  // Verify that the selection does not partially select any atomic
+  // marked ranges.
+  function reCheckSelection(doc) {
+    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
+  }
+
+  // Return a selection that does not partially select any atomic
+  // ranges.
+  function skipAtomicInSelection(doc, sel, bias, mayClear) {
+    var out;
+    for (var i = 0; i < sel.ranges.length; i++) {
+      var range = sel.ranges[i];
+      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
+      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
+      var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
+      if (out || newAnchor != range.anchor || newHead != range.head) {
+        if (!out) out = sel.ranges.slice(0, i);
+        out[i] = new Range(newAnchor, newHead);
+      }
+    }
+    return out ? normalizeSelection(out, sel.primIndex) : sel;
+  }
+
+  function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
+    var line = getLine(doc, pos.line);
+    if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
+      var sp = line.markedSpans[i], m = sp.marker;
+      if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
+          (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
+        if (mayClear) {
+          signal(m, "beforeCursorEnter");
+          if (m.explicitlyCleared) {
+            if (!line.markedSpans) break;
+            else {--i; continue;}
+          }
+        }
+        if (!m.atomic) continue;
+
+        if (oldPos) {
+          var near = m.find(dir < 0 ? 1 : -1), diff;
+          if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
+            near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null);
+          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
+            return skipAtomicInner(doc, near, pos, dir, mayClear);
+        }
+
+        var far = m.find(dir < 0 ? -1 : 1);
+        if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
+          far = movePos(doc, far, dir, far.line == pos.line ? line : null);
+        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null;
+      }
+    }
+    return pos;
+  }
+
+  // Ensure a given position is not inside an atomic range.
+  function skipAtomic(doc, pos, oldPos, bias, mayClear) {
+    var dir = bias || 1;
+    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
+        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
+        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
+        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
+    if (!found) {
+      doc.cantEdit = true;
+      return Pos(doc.first, 0);
+    }
+    return found;
+  }
+
+  function movePos(doc, pos, dir, line) {
+    if (dir < 0 && pos.ch == 0) {
+      if (pos.line > doc.first) return clipPos(doc, Pos(pos.line - 1));
+      else return null;
+    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
+      if (pos.line < doc.first + doc.size - 1) return Pos(pos.line + 1, 0);
+      else return null;
+    } else {
+      return new Pos(pos.line, pos.ch + dir);
+    }
+  }
+
+  // SELECTION DRAWING
+
+  function updateSelection(cm) {
+    cm.display.input.showSelection(cm.display.input.prepareSelection());
+  }
+
+  function prepareSelection(cm, primary) {
+    var doc = cm.doc, result = {};
+    var curFragment = result.cursors = document.createDocumentFragment();
+    var selFragment = result.selection = document.createDocumentFragment();
+
+    for (var i = 0; i < doc.sel.ranges.length; i++) {
+      if (primary === false && i == doc.sel.primIndex) continue;
+      var range = doc.sel.ranges[i];
+      if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) continue;
+      var collapsed = range.empty();
+      if (collapsed || cm.options.showCursorWhenSelecting)
+        drawSelectionCursor(cm, range.head, curFragment);
+      if (!collapsed)
+        drawSelectionRange(cm, range, selFragment);
+    }
+    return result;
+  }
+
+  // Draws a cursor for the given range
+  function drawSelectionCursor(cm, head, output) {
+    var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
+
+    var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
+    cursor.style.left = pos.left + "px";
+    cursor.style.top = pos.top + "px";
+    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
+
+    if (pos.other) {
+      // Secondary cursor, shown when on a 'jump' in bi-directional text
+      var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
+      otherCursor.style.display = "";
+      otherCursor.style.left = pos.other.left + "px";
+      otherCursor.style.top = pos.other.top + "px";
+      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
+    }
+  }
+
+  // Draws the given range as a highlighted selection
+  function drawSelectionRange(cm, range, output) {
+    var display = cm.display, doc = cm.doc;
+    var fragment = document.createDocumentFragment();
+    var padding = paddingH(cm.display), leftSide = padding.left;
+    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
+
+    function add(left, top, width, bottom) {
+      if (top < 0) top = 0;
+      top = Math.round(top);
+      bottom = Math.round(bottom);
+      fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
+                               "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
+                               "px; height: " + (bottom - top) + "px"));
+    }
+
+    function drawForLine(line, fromArg, toArg) {
+      var lineObj = getLine(doc, line);
+      var lineLen = lineObj.text.length;
+      var start, end;
+      function coords(ch, bias) {
+        return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
+      }
+
+      iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
+        var leftPos = coords(from, "left"), rightPos, left, right;
+        if (from == to) {
+          rightPos = leftPos;
+          left = right = leftPos.left;
+        } else {
+          rightPos = coords(to - 1, "right");
+          if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
+          left = leftPos.left;
+          right = rightPos.right;
+        }
+        if (fromArg == null && from == 0) left = leftSide;
+        if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
+          add(left, leftPos.top, null, leftPos.bottom);
+          left = leftSide;
+          if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
+        }
+        if (toArg == null && to == lineLen) right = rightSide;
+        if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
+          start = leftPos;
+        if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
+          end = rightPos;
+        if (left < leftSide + 1) left = leftSide;
+        add(left, rightPos.top, right - left, rightPos.bottom);
+      });
+      return {start: start, end: end};
+    }
+
+    var sFrom = range.from(), sTo = range.to();
+    if (sFrom.line == sTo.line) {
+      drawForLine(sFrom.line, sFrom.ch, sTo.ch);
+    } else {
+      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
+      var singleVLine = visualLine(fromLine) == visualLine(toLine);
+      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
+      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
+      if (singleVLine) {
+        if (leftEnd.top < rightStart.top - 2) {
+          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
+          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
+        } else {
+          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
+        }
+      }
+      if (leftEnd.bottom < rightStart.top)
+        add(leftSide, leftEnd.bottom, null, rightStart.top);
+    }
+
+    output.appendChild(fragment);
+  }
+
+  // Cursor-blinking
+  function restartBlink(cm) {
+    if (!cm.state.focused) return;
+    var display = cm.display;
+    clearInterval(display.blinker);
+    var on = true;
+    display.cursorDiv.style.visibility = "";
+    if (cm.options.cursorBlinkRate > 0)
+      display.blinker = setInterval(function() {
+        display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
+      }, cm.options.cursorBlinkRate);
+    else if (cm.options.cursorBlinkRate < 0)
+      display.cursorDiv.style.visibility = "hidden";
+  }
+
+  // HIGHLIGHT WORKER
+
+  function startWorker(cm, time) {
+    if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
+      cm.state.highlight.set(time, bind(highlightWorker, cm));
+  }
+
+  function highlightWorker(cm) {
+    var doc = cm.doc;
+    if (doc.frontier < doc.first) doc.frontier = doc.first;
+    if (doc.frontier >= cm.display.viewTo) return;
+    var end = +new Date + cm.options.workTime;
+    var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
+    var changedLines = [];
+
+    doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
+      if (doc.frontier >= cm.display.viewFrom) { // Visible
+        var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength;
+        var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true);
+        line.styles = highlighted.styles;
+        var oldCls = line.styleClasses, newCls = highlighted.classes;
+        if (newCls) line.styleClasses = newCls;
+        else if (oldCls) line.styleClasses = null;
+        var ischange = !oldStyles || oldStyles.length != line.styles.length ||
+          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
+        for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
+        if (ischange) changedLines.push(doc.frontier);
+        line.stateAfter = tooLong ? state : copyState(doc.mode, state);
+      } else {
+        if (line.text.length <= cm.options.maxHighlightLength)
+          processLine(cm, line.text, state);
+        line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
+      }
+      ++doc.frontier;
+      if (+new Date > end) {
+        startWorker(cm, cm.options.workDelay);
+        return true;
+      }
+    });
+    if (changedLines.length) runInOp(cm, function() {
+      for (var i = 0; i < changedLines.length; i++)
+        regLineChange(cm, changedLines[i], "text");
+    });
+  }
+
+  // Finds the line to start with when starting a parse. Tries to
+  // find a line with a stateAfter, so that it can start with a
+  // valid state. If that fails, it returns the line with the
+  // smallest indentation, which tends to need the least context to
+  // parse correctly.
+  function findStartLine(cm, n, precise) {
+    var minindent, minline, doc = cm.doc;
+    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
+    for (var search = n; search > lim; --search) {
+      if (search <= doc.first) return doc.first;
+      var line = getLine(doc, search - 1);
+      if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
+      var indented = countColumn(line.text, null, cm.options.tabSize);
+      if (minline == null || minindent > indented) {
+        minline = search - 1;
+        minindent = indented;
+      }
+    }
+    return minline;
+  }
+
+  function getStateBefore(cm, n, precise) {
+    var doc = cm.doc, display = cm.display;
+    if (!doc.mode.startState) return true;
+    var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
+    if (!state) state = startState(doc.mode);
+    else state = copyState(doc.mode, state);
+    doc.iter(pos, n, function(line) {
+      processLine(cm, line.text, state);
+      var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
+      line.stateAfter = save ? copyState(doc.mode, state) : null;
+      ++pos;
+    });
+    if (precise) doc.frontier = pos;
+    return state;
+  }
+
+  // POSITION MEASUREMENT
+
+  function paddingTop(display) {return display.lineSpace.offsetTop;}
+  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
+  function paddingH(display) {
+    if (display.cachedPaddingH) return display.cachedPaddingH;
+    var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
+    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
+    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
+    if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
+    return data;
+  }
+
+  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; }
+  function displayWidth(cm) {
+    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth;
+  }
+  function displayHeight(cm) {
+    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight;
+  }
+
+  // Ensure the lineView.wrapping.heights array is populated. This is
+  // an array of bottom offsets for the lines that make up a drawn
+  // line. When lineWrapping is on, there might be more than one
+  // height.
+  function ensureLineHeights(cm, lineView, rect) {
+    var wrapping = cm.options.lineWrapping;
+    var curWidth = wrapping && displayWidth(cm);
+    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+      var heights = lineView.measure.heights = [];
+      if (wrapping) {
+        lineView.measure.width = curWidth;
+        var rects = lineView.text.firstChild.getClientRects();
+        for (var i = 0; i < rects.length - 1; i++) {
+          var cur = rects[i], next = rects[i + 1];
+          if (Math.abs(cur.bottom - next.bottom) > 2)
+            heights.push((cur.bottom + next.top) / 2 - rect.top);
+        }
+      }
+      heights.push(rect.bottom - rect.top);
+    }
+  }
+
+  // Find a line map (mapping character offsets to text nodes) and a
+  // measurement cache for the given line number. (A line view might
+  // contain multiple lines when collapsed ranges are present.)
+  function mapFromLineView(lineView, line, lineN) {
+    if (lineView.line == line)
+      return {map: lineView.measure.map, cache: lineView.measure.cache};
+    for (var i = 0; i < lineView.rest.length; i++)
+      if (lineView.rest[i] == line)
+        return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
+    for (var i = 0; i < lineView.rest.length; i++)
+      if (lineNo(lineView.rest[i]) > lineN)
+        return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
+  }
+
+  // Render a line into the hidden node display.externalMeasured. Used
+  // when measurement is needed for a line that's not in the viewport.
+  function updateExternalMeasurement(cm, line) {
+    line = visualLine(line);
+    var lineN = lineNo(line);
+    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
+    view.lineN = lineN;
+    var built = view.built = buildLineContent(cm, view);
+    view.text = built.pre;
+    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
+    return view;
+  }
+
+  // Get a {top, bottom, left, right} box (in line-local coordinates)
+  // for a given character.
+  function measureChar(cm, line, ch, bias) {
+    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
+  }
+
+  // Find a line view that corresponds to the given line number.
+  function findViewForLine(cm, lineN) {
+    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+      return cm.display.view[findViewIndex(cm, lineN)];
+    var ext = cm.display.externalMeasured;
+    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+      return ext;
+  }
+
+  // Measurement can be split in two steps, the set-up work that
+  // applies to the whole line, and the measurement of the actual
+  // character. Functions like coordsChar, that need to do a lot of
+  // measurements in a row, can thus ensure that the set-up work is
+  // only done once.
+  function prepareMeasureForLine(cm, line) {
+    var lineN = lineNo(line);
+    var view = findViewForLine(cm, lineN);
+    if (view && !view.text) {
+      view = null;
+    } else if (view && view.changes) {
+      updateLineForChanges(cm, view, lineN, getDimensions(cm));
+      cm.curOp.forceUpdate = true;
+    }
+    if (!view)
+      view = updateExternalMeasurement(cm, line);
+
+    var info = mapFromLineView(view, line, lineN);
+    return {
+      line: line, view: view, rect: null,
+      map: info.map, cache: info.cache, before: info.before,
+      hasHeights: false
+    };
+  }
+
+  // Given a prepared measurement object, measures the position of an
+  // actual character (or fetches it from the cache).
+  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+    if (prepared.before) ch = -1;
+    var key = ch + (bias || ""), found;
+    if (prepared.cache.hasOwnProperty(key)) {
+      found = prepared.cache[key];
+    } else {
+      if (!prepared.rect)
+        prepared.rect = prepared.view.text.getBoundingClientRect();
+      if (!prepared.hasHeights) {
+        ensureLineHeights(cm, prepared.view, prepared.rect);
+        prepared.hasHeights = true;
+      }
+      found = measureCharInner(cm, prepared, ch, bias);
+      if (!found.bogus) prepared.cache[key] = found;
+    }
+    return {left: found.left, right: found.right,
+            top: varHeight ? found.rtop : found.top,
+            bottom: varHeight ? found.rbottom : found.bottom};
+  }
+
+  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
+
+  function nodeAndOffsetInLineMap(map, ch, bias) {
+    var node, start, end, collapse;
+    // First, search the line map for the text node corresponding to,
+    // or closest to, the target character.
+    for (var i = 0; i < map.length; i += 3) {
+      var mStart = map[i], mEnd = map[i + 1];
+      if (ch < mStart) {
+        start = 0; end = 1;
+        collapse = "left";
+      } else if (ch < mEnd) {
+        start = ch - mStart;
+        end = start + 1;
+      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
+        end = mEnd - mStart;
+        start = end - 1;
+        if (ch >= mEnd) collapse = "right";
+      }
+      if (start != null) {
+        node = map[i + 2];
+        if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+          collapse = bias;
+        if (bias == "left" && start == 0)
+          while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+            node = map[(i -= 3) + 2];
+            collapse = "left";
+          }
+        if (bias == "right" && start == mEnd - mStart)
+          while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+            node = map[(i += 3) + 2];
+            collapse = "right";
+          }
+        break;
+      }
+    }
+    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd};
+  }
+
+  function getUsefulRect(rects, bias) {
+    var rect = nullRect
+    if (bias == "left") for (var i = 0; i < rects.length; i++) {
+      if ((rect = rects[i]).left != rect.right) break
+    } else for (var i = rects.length - 1; i >= 0; i--) {
+      if ((rect = rects[i]).left != rect.right) break
+    }
+    return rect
+  }
+
+  function measureCharInner(cm, prepared, ch, bias) {
+    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
+    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
+
+    var rect;
+    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+      for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start;
+        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end;
+        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
+          rect = node.parentNode.getBoundingClientRect();
+        else
+          rect = getUsefulRect(range(node, start, end).getClientRects(), bias)
+        if (rect.left || rect.right || start == 0) break;
+        end = start;
+        start = start - 1;
+        collapse = "right";
+      }
+      if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
+    } else { // If it is a widget, simply get the box for the whole widget.
+      if (start > 0) collapse = bias = "right";
+      var rects;
+      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+        rect = rects[bias == "right" ? rects.length - 1 : 0];
+      else
+        rect = node.getBoundingClientRect();
+    }
+    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+      var rSpan = node.parentNode.getClientRects()[0];
+      if (rSpan)
+        rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
+      else
+        rect = nullRect;
+    }
+
+    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
+    var mid = (rtop + rbot) / 2;
+    var heights = prepared.view.measure.heights;
+    for (var i = 0; i < heights.length - 1; i++)
+      if (mid < heights[i]) break;
+    var top = i ? heights[i - 1] : 0, bot = heights[i];
+    var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+                  right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+                  top: top, bottom: bot};
+    if (!rect.left && !rect.right) result.bogus = true;
+    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
+
+    return result;
+  }
+
+  // Work around problem with bounding client rects on ranges being
+  // returned incorrectly when zoomed on IE10 and below.
+  function maybeUpdateRectForZooming(measure, rect) {
+    if (!window.screen || screen.logicalXDPI == null ||
+        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+      return rect;
+    var scaleX = screen.logicalXDPI / screen.deviceXDPI;
+    var scaleY = screen.logicalYDPI / screen.deviceYDPI;
+    return {left: rect.left * scaleX, right: rect.right * scaleX,
+            top: rect.top * scaleY, bottom: rect.bottom * scaleY};
+  }
+
+  function clearLineMeasurementCacheFor(lineView) {
+    if (lineView.measure) {
+      lineView.measure.cache = {};
+      lineView.measure.heights = null;
+      if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
+        lineView.measure.caches[i] = {};
+    }
+  }
+
+  function clearLineMeasurementCache(cm) {
+    cm.display.externalMeasure = null;
+    removeChildren(cm.display.lineMeasure);
+    for (var i = 0; i < cm.display.view.length; i++)
+      clearLineMeasurementCacheFor(cm.display.view[i]);
+  }
+
+  function clearCaches(cm) {
+    clearLineMeasurementCache(cm);
+    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
+    if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
+    cm.display.lineNumChars = null;
+  }
+
+  function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
+  function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
+
+  // Converts a {top, bottom, left, right} box from line-local
+  // coordinates into another coordinate system. Context may be one of
+  // "line", "div" (display.lineDiv), "local"/null (editor), "window",
+  // or "page".
+  function intoCoordSystem(cm, lineObj, rect, context) {
+    if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
+      var size = widgetHeight(lineObj.widgets[i]);
+      rect.top += size; rect.bottom += size;
+    }
+    if (context == "line") return rect;
+    if (!context) context = "local";
+    var yOff = heightAtLine(lineObj);
+    if (context == "local") yOff += paddingTop(cm.display);
+    else yOff -= cm.display.viewOffset;
+    if (context == "page" || context == "window") {
+      var lOff = cm.display.lineSpace.getBoundingClientRect();
+      yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
+      var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
+      rect.left += xOff; rect.right += xOff;
+    }
+    rect.top += yOff; rect.bottom += yOff;
+    return rect;
+  }
+
+  // Coverts a box from "div" coords to another coordinate system.
+  // Context may be "window", "page", "div", or "local"/null.
+  function fromCoordSystem(cm, coords, context) {
+    if (context == "div") return coords;
+    var left = coords.left, top = coords.top;
+    // First move into "page" coordinate system
+    if (context == "page") {
+      left -= pageScrollX();
+      top -= pageScrollY();
+    } else if (context == "local" || !context) {
+      var localBox = cm.display.sizer.getBoundingClientRect();
+      left += localBox.left;
+      top += localBox.top;
+    }
+
+    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
+    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
+  }
+
+  function charCoords(cm, pos, context, lineObj, bias) {
+    if (!lineObj) lineObj = getLine(cm.doc, pos.line);
+    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
+  }
+
+  // Returns a box for a given cursor position, which may have an
+  // 'other' property containing the position of the secondary cursor
+  // on a bidi boundary.
+  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+    lineObj = lineObj || getLine(cm.doc, pos.line);
+    if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
+    function get(ch, right) {
+      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
+      if (right) m.left = m.right; else m.right = m.left;
+      return intoCoordSystem(cm, lineObj, m, context);
+    }
+    function getBidi(ch, partPos) {
+      var part = order[partPos], right = part.level % 2;
+      if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
+        part = order[--partPos];
+        ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
+        right = true;
+      } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
+        part = order[++partPos];
+        ch = bidiLeft(part) - part.level % 2;
+        right = false;
+      }
+      if (right && ch == part.to && ch > part.from) return get(ch - 1);
+      return get(ch, right);
+    }
+    var order = getOrder(lineObj), ch = pos.ch;
+    if (!order) return get(ch);
+    var partPos = getBidiPartAt(order, ch);
+    var val = getBidi(ch, partPos);
+    if (bidiOther != null) val.other = getBidi(ch, bidiOther);
+    return val;
+  }
+
+  // Used to cheaply estimate the coordinates for a position. Used for
+  // intermediate scroll updates.
+  function estimateCoords(cm, pos) {
+    var left = 0, pos = clipPos(cm.doc, pos);
+    if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
+    var lineObj = getLine(cm.doc, pos.line);
+    var top = heightAtLine(lineObj) + paddingTop(cm.display);
+    return {left: left, right: left, top: top, bottom: top + lineObj.height};
+  }
+
+  // Positions returned by coordsChar contain some extra information.
+  // xRel is the relative x position of the input coordinates compared
+  // to the found position (so xRel > 0 means the coordinates are to
+  // the right of the character position, for example). When outside
+  // is true, that means the coordinates lie outside the line's
+  // vertical range.
+  function PosWithInfo(line, ch, outside, xRel) {
+    var pos = Pos(line, ch);
+    pos.xRel = xRel;
+    if (outside) pos.outside = true;
+    return pos;
+  }
+
+  // Compute the character position closest to the given coordinates.
+  // Input must be lineSpace-local ("div" coordinate system).
+  function coordsChar(cm, x, y) {
+    var doc = cm.doc;
+    y += cm.display.viewOffset;
+    if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
+    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
+    if (lineN > last)
+      return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
+    if (x < 0) x = 0;
+
+    var lineObj = getLine(doc, lineN);
+    for (;;) {
+      var found = coordsCharInner(cm, lineObj, lineN, x, y);
+      var merged = collapsedSpanAtEnd(lineObj);
+      var mergedPos = merged && merged.find(0, true);
+      if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
+        lineN = lineNo(lineObj = mergedPos.to.line);
+      else
+        return found;
+    }
+  }
+
+  function coordsCharInner(cm, lineObj, lineNo, x, y) {
+    var innerOff = y - heightAtLine(lineObj);
+    var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
+    var preparedMeasure = prepareMeasureForLine(cm, lineObj);
+
+    function getX(ch) {
+      var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
+      wrongLine = true;
+      if (innerOff > sp.bottom) return sp.left - adjust;
+      else if (innerOff < sp.top) return sp.left + adjust;
+      else wrongLine = false;
+      return sp.left;
+    }
+
+    var bidi = getOrder(lineObj), dist = lineObj.text.length;
+    var from = lineLeft(lineObj), to = lineRight(lineObj);
+    var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
+
+    if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
+    // Do a binary search between these bounds.
+    for (;;) {
+      if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
+        var ch = x < fromX || x - fromX <= toX - x ? from : to;
+        var outside = ch == from ? fromOutside : toOutside
+        var xDiff = x - (ch == from ? fromX : toX);
+        // This is a kludge to handle the case where the coordinates
+        // are after a line-wrapped line. We should replace it with a
+        // more general handling of cursor positions around line
+        // breaks. (Issue #4078)
+        if (toOutside && !bidi && !/\s/.test(lineObj.text.charAt(ch)) && xDiff > 0 &&
+            ch < lineObj.text.length && preparedMeasure.view.measure.heights.length > 1) {
+          var charSize = measureCharPrepared(cm, preparedMeasure, ch, "right");
+          if (innerOff <= charSize.bottom && innerOff >= charSize.top && Math.abs(x - charSize.right) < xDiff) {
+            outside = false
+            ch++
+            xDiff = x - charSize.right
+          }
+        }
+        while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
+        var pos = PosWithInfo(lineNo, ch, outside, xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
+        return pos;
+      }
+      var step = Math.ceil(dist / 2), middle = from + step;
+      if (bidi) {
+        middle = from;
+        for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
+      }
+      var middleX = getX(middle);
+      if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
+      else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
+    }
+  }
+
+  var measureText;
+  // Compute the default text height.
+  function textHeight(display) {
+    if (display.cachedTextHeight != null) return display.cachedTextHeight;
+    if (measureText == null) {
+      measureText = elt("pre");
+      // Measure a bunch of lines, for browsers that compute
+      // fractional heights.
+      for (var i = 0; i < 49; ++i) {
+        measureText.appendChild(document.createTextNode("x"));
+        measureText.appendChild(elt("br"));
+      }
+      measureText.appendChild(document.createTextNode("x"));
+    }
+    removeChildrenAndAdd(display.measure, measureText);
+    var height = measureText.offsetHeight / 50;
+    if (height > 3) display.cachedTextHeight = height;
+    removeChildren(display.measure);
+    return height || 1;
+  }
+
+  // Compute the default character width.
+  function charWidth(display) {
+    if (display.cachedCharWidth != null) return display.cachedCharWidth;
+    var anchor = elt("span", "xxxxxxxxxx");
+    var pre = elt("pre", [anchor]);
+    removeChildrenAndAdd(display.measure, pre);
+    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
+    if (width > 2) display.cachedCharWidth = width;
+    return width || 10;
+  }
+
+  // OPERATIONS
+
+  // Operations are used to wrap a series of changes to the editor
+  // state in such a way that each change won't have to update the
+  // cursor and display (which would be awkward, slow, and
+  // error-prone). Instead, display updates are batched and then all
+  // combined and executed at once.
+
+  var operationGroup = null;
+
+  var nextOpId = 0;
+  // Start a new operation.
+  function startOperation(cm) {
+    cm.curOp = {
+      cm: cm,
+      viewChanged: false,      // Flag that indicates that lines might need to be redrawn
+      startHeight: cm.doc.height, // Used to detect need to update scrollbar
+      forceUpdate: false,      // Used to force a redraw
+      updateInput: null,       // Whether to reset the input textarea
+      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
+      changeObjs: null,        // Accumulated changes, for firing change events
+      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+      selectionChanged: false, // Whether the selection needs to be redrawn
+      updateMaxLine: false,    // Set when the widest line needs to be determined anew
+      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+      scrollToPos: null,       // Used to scroll to a specific position
+      focus: false,
+      id: ++nextOpId           // Unique ID
+    };
+    if (operationGroup) {
+      operationGroup.ops.push(cm.curOp);
+    } else {
+      cm.curOp.ownsGroup = operationGroup = {
+        ops: [cm.curOp],
+        delayedCallbacks: []
+      };
+    }
+  }
+
+  function fireCallbacksForOps(group) {
+    // Calls delayed callbacks and cursorActivity handlers until no
+    // new ones appear
+    var callbacks = group.delayedCallbacks, i = 0;
+    do {
+      for (; i < callbacks.length; i++)
+        callbacks[i].call(null);
+      for (var j = 0; j < group.ops.length; j++) {
+        var op = group.ops[j];
+        if (op.cursorActivityHandlers)
+          while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+            op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm);
+      }
+    } while (i < callbacks.length);
+  }
+
+  // Finish an operation, updating the display and signalling delayed events
+  function endOperation(cm) {
+    var op = cm.curOp, group = op.ownsGroup;
+    if (!group) return;
+
+    try { fireCallbacksForOps(group); }
+    finally {
+      operationGroup = null;
+      for (var i = 0; i < group.ops.length; i++)
+        group.ops[i].cm.curOp = null;
+      endOperations(group);
+    }
+  }
+
+  // The DOM updates done when an operation finishes are batched so
+  // that the minimum number of relayouts are required.
+  function endOperations(group) {
+    var ops = group.ops;
+    for (var i = 0; i < ops.length; i++) // Read DOM
+      endOperation_R1(ops[i]);
+    for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
+      endOperation_W1(ops[i]);
+    for (var i = 0; i < ops.length; i++) // Read DOM
+      endOperation_R2(ops[i]);
+    for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
+      endOperation_W2(ops[i]);
+    for (var i = 0; i < ops.length; i++) // Read DOM
+      endOperation_finish(ops[i]);
+  }
+
+  function endOperation_R1(op) {
+    var cm = op.cm, display = cm.display;
+    maybeClipScrollbars(cm);
+    if (op.updateMaxLine) findMaxLine(cm);
+
+    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+                         op.scrollToPos.to.line >= display.viewTo) ||
+      display.maxLineChanged && cm.options.lineWrapping;
+    op.update = op.mustUpdate &&
+      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
+  }
+
+  function endOperation_W1(op) {
+    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
+  }
+
+  function endOperation_R2(op) {
+    var cm = op.cm, display = cm.display;
+    if (op.updatedDisplay) updateHeightsInViewport(cm);
+
+    op.barMeasure = measureForScrollbars(cm);
+
+    // If the max line changed since it was last measured, measure it,
+    // and ensure the document's width matches it.
+    // updateDisplay_W2 will use these properties to do the actual resizing
+    if (display.maxLineChanged && !cm.options.lineWrapping) {
+      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
+      cm.display.sizerWidth = op.adjustWidthTo;
+      op.barMeasure.scrollWidth =
+        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
+      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
+    }
+
+    if (op.updatedDisplay || op.selectionChanged)
+      op.preparedSelection = display.input.prepareSelection(op.focus);
+  }
+
+  function endOperation_W2(op) {
+    var cm = op.cm;
+
+    if (op.adjustWidthTo != null) {
+      cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
+      if (op.maxScrollLeft < cm.doc.scrollLeft)
+        setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
+      cm.display.maxLineChanged = false;
+    }
+
+    var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus())
+    if (op.preparedSelection)
+      cm.display.input.showSelection(op.preparedSelection, takeFocus);
+    if (op.updatedDisplay || op.startHeight != cm.doc.height)
+      updateScrollbars(cm, op.barMeasure);
+    if (op.updatedDisplay)
+      setDocumentHeight(cm, op.barMeasure);
+
+    if (op.selectionChanged) restartBlink(cm);
+
+    if (cm.state.focused && op.updateInput)
+      cm.display.input.reset(op.typing);
+    if (takeFocus) ensureFocus(op.cm);
+  }
+
+  function endOperation_finish(op) {
+    var cm = op.cm, display = cm.display, doc = cm.doc;
+
+    if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
+
+    // Abort mouse wheel delta measurement, when scrolling explicitly
+    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+      display.wheelStartX = display.wheelStartY = null;
+
+    // Propagate the scroll position to the actual DOM scroller
+    if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
+      doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
+      display.scrollbars.setScrollTop(doc.scrollTop);
+      display.scroller.scrollTop = doc.scrollTop;
+    }
+    if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
+      doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft));
+      display.scrollbars.setScrollLeft(doc.scrollLeft);
+      display.scroller.scrollLeft = doc.scrollLeft;
+      alignHorizontally(cm);
+    }
+    // If we need to scroll a specific position into view, do so.
+    if (op.scrollToPos) {
+      var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+                                     clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
+      if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
+    }
+
+    // Fire events for markers that are hidden/unidden by editing or
+    // undoing
+    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
+    if (hidden) for (var i = 0; i < hidden.length; ++i)
+      if (!hidden[i].lines.length) signal(hidden[i], "hide");
+    if (unhidden) for (var i = 0; i < unhidden.length; ++i)
+      if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
+
+    if (display.wrapper.offsetHeight)
+      doc.scrollTop = cm.display.scroller.scrollTop;
+
+    // Fire change events, and delayed event handlers
+    if (op.changeObjs)
+      signal(cm, "changes", cm, op.changeObjs);
+    if (op.update)
+      op.update.finish();
+  }
+
+  // Run the given function in an operation
+  function runInOp(cm, f) {
+    if (cm.curOp) return f();
+    startOperation(cm);
+    try { return f(); }
+    finally { endOperation(cm); }
+  }
+  // Wraps a function in an operation. Returns the wrapped function.
+  function operation(cm, f) {
+    return function() {
+      if (cm.curOp) return f.apply(cm, arguments);
+      startOperation(cm);
+      try { return f.apply(cm, arguments); }
+      finally { endOperation(cm); }
+    };
+  }
+  // Used to add methods to editor and doc instances, wrapping them in
+  // operations.
+  function methodOp(f) {
+    return function() {
+      if (this.curOp) return f.apply(this, arguments);
+      startOperation(this);
+      try { return f.apply(this, arguments); }
+      finally { endOperation(this); }
+    };
+  }
+  function docMethodOp(f) {
+    return function() {
+      var cm = this.cm;
+      if (!cm || cm.curOp) return f.apply(this, arguments);
+      startOperation(cm);
+      try { return f.apply(this, arguments); }
+      finally { endOperation(cm); }
+    };
+  }
+
+  // VIEW TRACKING
+
+  // These objects are used to represent the visible (currently drawn)
+  // part of the document. A LineView may correspond to multiple
+  // logical lines, if those are connected by collapsed ranges.
+  function LineView(doc, line, lineN) {
+    // The starting line
+    this.line = line;
+    // Continuing lines, if any
+    this.rest = visualLineContinued(line);
+    // Number of logical lines in this visual line
+    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
+    this.node = this.text = null;
+    this.hidden = lineIsHidden(doc, line);
+  }
+
+  // Create a range of LineView objects for the given lines.
+  function buildViewArray(cm, from, to) {
+    var array = [], nextPos;
+    for (var pos = from; pos < to; pos = nextPos) {
+      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
+      nextPos = pos + view.size;
+      array.push(view);
+    }
+    return array;
+  }
+
+  // Updates the display.view data structure for a given change to the
+  // document. From and to are in pre-change coordinates. Lendiff is
+  // the amount of lines added or subtracted by the change. This is
+  // used for changes that span multiple lines, or change the way
+  // lines are divided into visual lines. regLineChange (below)
+  // registers single-line changes.
+  function regChange(cm, from, to, lendiff) {
+    if (from == null) from = cm.doc.first;
+    if (to == null) to = cm.doc.first + cm.doc.size;
+    if (!lendiff) lendiff = 0;
+
+    var display = cm.display;
+    if (lendiff && to < display.viewTo &&
+        (display.updateLineNumbers == null || display.updateLineNumbers > from))
+      display.updateLineNumbers = from;
+
+    cm.curOp.viewChanged = true;
+
+    if (from >= display.viewTo) { // Change after
+      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+        resetView(cm);
+    } else if (to <= display.viewFrom) { // Change before
+      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+        resetView(cm);
+      } else {
+        display.viewFrom += lendiff;
+        display.viewTo += lendiff;
+      }
+    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+      resetView(cm);
+    } else if (from <= display.viewFrom) { // Top overlap
+      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
+      if (cut) {
+        display.view = display.view.slice(cut.index);
+        display.viewFrom = cut.lineN;
+        display.viewTo += lendiff;
+      } else {
+        resetView(cm);
+      }
+    } else if (to >= display.viewTo) { // Bottom overlap
+      var cut = viewCuttingPoint(cm, from, from, -1);
+      if (cut) {
+        display.view = display.view.slice(0, cut.index);
+        display.viewTo = cut.lineN;
+      } else {
+        resetView(cm);
+      }
+    } else { // Gap in the middle
+      var cutTop = viewCuttingPoint(cm, from, from, -1);
+      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
+      if (cutTop && cutBot) {
+        display.view = display.view.slice(0, cutTop.index)
+          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+          .concat(display.view.slice(cutBot.index));
+        display.viewTo += lendiff;
+      } else {
+        resetView(cm);
+      }
+    }
+
+    var ext = display.externalMeasured;
+    if (ext) {
+      if (to < ext.lineN)
+        ext.lineN += lendiff;
+      else if (from < ext.lineN + ext.size)
+        display.externalMeasured = null;
+    }
+  }
+
+  // Register a change to a single line. Type must be one of "text",
+  // "gutter", "class", "widget"
+  function regLineChange(cm, line, type) {
+    cm.curOp.viewChanged = true;
+    var display = cm.display, ext = cm.display.externalMeasured;
+    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+      display.externalMeasured = null;
+
+    if (line < display.viewFrom || line >= display.viewTo) return;
+    var lineView = display.view[findViewIndex(cm, line)];
+    if (lineView.node == null) return;
+    var arr = lineView.changes || (lineView.changes = []);
+    if (indexOf(arr, type) == -1) arr.push(type);
+  }
+
+  // Clear the view.
+  function resetView(cm) {
+    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
+    cm.display.view = [];
+    cm.display.viewOffset = 0;
+  }
+
+  // Find the view element corresponding to a given line. Return null
+  // when the line isn't visible.
+  function findViewIndex(cm, n) {
+    if (n >= cm.display.viewTo) return null;
+    n -= cm.display.viewFrom;
+    if (n < 0) return null;
+    var view = cm.display.view;
+    for (var i = 0; i < view.length; i++) {
+      n -= view[i].size;
+      if (n < 0) return i;
+    }
+  }
+
+  function viewCuttingPoint(cm, oldN, newN, dir) {
+    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
+    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+      return {index: index, lineN: newN};
+    for (var i = 0, n = cm.display.viewFrom; i < index; i++)
+      n += view[i].size;
+    if (n != oldN) {
+      if (dir > 0) {
+        if (index == view.length - 1) return null;
+        diff = (n + view[index].size) - oldN;
+        index++;
+      } else {
+        diff = n - oldN;
+      }
+      oldN += diff; newN += diff;
+    }
+    while (visualLineNo(cm.doc, newN) != newN) {
+      if (index == (dir < 0 ? 0 : view.length - 1)) return null;
+      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
+      index += dir;
+    }
+    return {index: index, lineN: newN};
+  }
+
+  // Force the view to cover a given range, adding empty view element
+  // or clipping off existing ones as needed.
+  function adjustView(cm, from, to) {
+    var display = cm.display, view = display.view;
+    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+      display.view = buildViewArray(cm, from, to);
+      display.viewFrom = from;
+    } else {
+      if (display.viewFrom > from)
+        display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
+      else if (display.viewFrom < from)
+        display.view = display.view.slice(findViewIndex(cm, from));
+      display.viewFrom = from;
+      if (display.viewTo < to)
+        display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
+      else if (display.viewTo > to)
+        display.view = display.view.slice(0, findViewIndex(cm, to));
+    }
+    display.viewTo = to;
+  }
+
+  // Count the number of lines in the view whose DOM representation is
+  // out of date (or nonexistent).
+  function countDirtyView(cm) {
+    var view = cm.display.view, dirty = 0;
+    for (var i = 0; i < view.length; i++) {
+      var lineView = view[i];
+      if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
+    }
+    return dirty;
+  }
+
+  // EVENT HANDLERS
+
+  // Attach the necessary event handlers when initializing the editor
+  function registerEventHandlers(cm) {
+    var d = cm.display;
+    on(d.scroller, "mousedown", operation(cm, onMouseDown));
+    // Older IE's will not fire a second mousedown for a double click
+    if (ie && ie_version < 11)
+      on(d.scroller, "dblclick", operation(cm, function(e) {
+        if (signalDOMEvent(cm, e)) return;
+        var pos = posFromMouse(cm, e);
+        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
+        e_preventDefault(e);
+        var word = cm.findWordAt(pos);
+        extendSelection(cm.doc, word.anchor, word.head);
+      }));
+    else
+      on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
+    // Some browsers fire contextmenu *after* opening the menu, at
+    // which point we can't mess with it anymore. Context menu is
+    // handled in onMouseDown for these browsers.
+    if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
+
+    // Used to suppress mouse event handling when a touch happens
+    var touchFinished, prevTouch = {end: 0};
+    function finishTouch() {
+      if (d.activeTouch) {
+        touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000);
+        prevTouch = d.activeTouch;
+        prevTouch.end = +new Date;
+      }
+    };
+    function isMouseLikeTouchEvent(e) {
+      if (e.touches.length != 1) return false;
+      var touch = e.touches[0];
+      return touch.radiusX <= 1 && touch.radiusY <= 1;
+    }
+    function farAway(touch, other) {
+      if (other.left == null) return true;
+      var dx = other.left - touch.left, dy = other.top - touch.top;
+      return dx * dx + dy * dy > 20 * 20;
+    }
+    on(d.scroller, "touchstart", function(e) {
+      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) {
+        clearTimeout(touchFinished);
+        var now = +new Date;
+        d.activeTouch = {start: now, moved: false,
+                         prev: now - prevTouch.end <= 300 ? prevTouch : null};
+        if (e.touches.length == 1) {
+          d.activeTouch.left = e.touches[0].pageX;
+          d.activeTouch.top = e.touches[0].pageY;
+        }
+      }
+    });
+    on(d.scroller, "touchmove", function() {
+      if (d.activeTouch) d.activeTouch.moved = true;
+    });
+    on(d.scroller, "touchend", function(e) {
+      var touch = d.activeTouch;
+      if (touch && !eventInWidget(d, e) && touch.left != null &&
+          !touch.moved && new Date - touch.start < 300) {
+        var pos = cm.coordsChar(d.activeTouch, "page"), range;
+        if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+          range = new Range(pos, pos);
+        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+          range = cm.findWordAt(pos);
+        else // Triple tap
+          range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)));
+        cm.setSelection(range.anchor, range.head);
+        cm.focus();
+        e_preventDefault(e);
+      }
+      finishTouch();
+    });
+    on(d.scroller, "touchcancel", finishTouch);
+
+    // Sync scrolling between fake scrollbars and real scrollable
+    // area, ensure viewport is updated when scrolling.
+    on(d.scroller, "scroll", function() {
+      if (d.scroller.clientHeight) {
+        setScrollTop(cm, d.scroller.scrollTop);
+        setScrollLeft(cm, d.scroller.scrollLeft, true);
+        signal(cm, "scroll", cm);
+      }
+    });
+
+    // Listen to wheel events in order to try and update the viewport on time.
+    on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
+    on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
+
+    // Prevent wrapper from ever scrolling
+    on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
+
+    d.dragFunctions = {
+      enter: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);},
+      over: function(e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
+      start: function(e){onDragStart(cm, e);},
+      drop: operation(cm, onDrop),
+      leave: function(e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
+    };
+
+    var inp = d.input.getField();
+    on(inp, "keyup", function(e) { onKeyUp.call(cm, e); });
+    on(inp, "keydown", operation(cm, onKeyDown));
+    on(inp, "keypress", operation(cm, onKeyPress));
+    on(inp, "focus", bind(onFocus, cm));
+    on(inp, "blur", bind(onBlur, cm));
+  }
+
+  function dragDropChanged(cm, value, old) {
+    var wasOn = old && old != CodeMirror.Init;
+    if (!value != !wasOn) {
+      var funcs = cm.display.dragFunctions;
+      var toggle = value ? on : off;
+      toggle(cm.display.scroller, "dragstart", funcs.start);
+      toggle(cm.display.scroller, "dragenter", funcs.enter);
+      toggle(cm.display.scroller, "dragover", funcs.over);
+      toggle(cm.display.scroller, "dragleave", funcs.leave);
+      toggle(cm.display.scroller, "drop", funcs.drop);
+    }
+  }
+
+  // Called when the window resizes
+  function onResize(cm) {
+    var d = cm.display;
+    if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
+      return;
+    // Might be a text scaling operation, clear size caches.
+    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+    d.scrollbarsClipped = false;
+    cm.setSize();
+  }
+
+  // MOUSE EVENTS
+
+  // Return true when the given mouse event happened in a widget
+  function eventInWidget(display, e) {
+    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+      if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+          (n.parentNode == display.sizer && n != display.mover))
+        return true;
+    }
+  }
+
+  // Given a mouse event, find the corresponding position. If liberal
+  // is false, it checks whether a gutter or scrollbar was clicked,
+  // and returns null if it was. forRect is used by rectangular
+  // selections, and tries to estimate a character position even for
+  // coordinates beyond the right of the text.
+  function posFromMouse(cm, e, liberal, forRect) {
+    var display = cm.display;
+    if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null;
+
+    var x, y, space = display.lineSpace.getBoundingClientRect();
+    // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+    try { x = e.clientX - space.left; y = e.clientY - space.top; }
+    catch (e) { return null; }
+    var coords = coordsChar(cm, x, y), line;
+    if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
+      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
+    }
+    return coords;
+  }
+
+  // A mouse down can be a single click, double click, triple click,
+  // start of selection drag, start of text drag, new cursor
+  // (ctrl-click), rectangle drag (alt-drag), or xwin
+  // middle-click-paste. Or it might be a click on something we should
+  // not interfere with, such as a scrollbar or widget.
+  function onMouseDown(e) {
+    var cm = this, display = cm.display;
+    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) return;
+    display.shift = e.shiftKey;
+
+    if (eventInWidget(display, e)) {
+      if (!webkit) {
+        // Briefly turn off draggability, to allow widgets to do
+        // normal dragging things.
+        display.scroller.draggable = false;
+        setTimeout(function(){display.scroller.draggable = true;}, 100);
+      }
+      return;
+    }
+    if (clickInGutter(cm, e)) return;
+    var start = posFromMouse(cm, e);
+    window.focus();
+
+    switch (e_button(e)) {
+    case 1:
+      // #3261: make sure, that we're not starting a second selection
+      if (cm.state.selectingText)
+        cm.state.selectingText(e);
+      else if (start)
+        leftButtonDown(cm, e, start);
+      else if (e_target(e) == display.scroller)
+        e_preventDefault(e);
+      break;
+    case 2:
+      if (webkit) cm.state.lastMiddleDown = +new Date;
+      if (start) extendSelection(cm.doc, start);
+      setTimeout(function() {display.input.focus();}, 20);
+      e_preventDefault(e);
+      break;
+    case 3:
+      if (captureRightClick) onContextMenu(cm, e);
+      else delayBlurEvent(cm);
+      break;
+    }
+  }
+
+  var lastClick, lastDoubleClick;
+  function leftButtonDown(cm, e, start) {
+    if (ie) setTimeout(bind(ensureFocus, cm), 0);
+    else cm.curOp.focus = activeElt();
+
+    var now = +new Date, type;
+    if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
+      type = "triple";
+    } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
+      type = "double";
+      lastDoubleClick = {time: now, pos: start};
+    } else {
+      type = "single";
+      lastClick = {time: now, pos: start};
+    }
+
+    var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained;
+    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
+        type == "single" && (contained = sel.contains(start)) > -1 &&
+        (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
+        (cmp(contained.to(), start) > 0 || start.xRel < 0))
+      leftButtonStartDrag(cm, e, start, modifier);
+    else
+      leftButtonSelect(cm, e, start, type, modifier);
+  }
+
+  // Start a text drag. When it ends, see if any dragging actually
+  // happen, and treat as a click if it didn't.
+  function leftButtonStartDrag(cm, e, start, modifier) {
+    var display = cm.display, startTime = +new Date;
+    var dragEnd = operation(cm, function(e2) {
+      if (webkit) display.scroller.draggable = false;
+      cm.state.draggingText = false;
+      off(document, "mouseup", dragEnd);
+      off(display.scroller, "drop", dragEnd);
+      if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
+        e_preventDefault(e2);
+        if (!modifier && +new Date - 200 < startTime)
+          extendSelection(cm.doc, start);
+        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+        if (webkit || ie && ie_version == 9)
+          setTimeout(function() {document.body.focus(); display.input.focus();}, 20);
+        else
+          display.input.focus();
+      }
+    });
+    // Let the drag handler handle this.
+    if (webkit) display.scroller.draggable = true;
+    cm.state.draggingText = dragEnd;
+    dragEnd.copy = mac ? e.altKey : e.ctrlKey
+    // IE's approach to draggable
+    if (display.scroller.dragDrop) display.scroller.dragDrop();
+    on(document, "mouseup", dragEnd);
+    on(display.scroller, "drop", dragEnd);
+  }
+
+  // Normal selection, as opposed to text dragging.
+  function leftButtonSelect(cm, e, start, type, addNew) {
+    var display = cm.display, doc = cm.doc;
+    e_preventDefault(e);
+
+    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
+    if (addNew && !e.shiftKey) {
+      ourIndex = doc.sel.contains(start);
+      if (ourIndex > -1)
+        ourRange = ranges[ourIndex];
+      else
+        ourRange = new Range(start, start);
+    } else {
+      ourRange = doc.sel.primary();
+      ourIndex = doc.sel.primIndex;
+    }
+
+    if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) {
+      type = "rect";
+      if (!addNew) ourRange = new Range(start, start);
+      start = posFromMouse(cm, e, true, true);
+      ourIndex = -1;
+    } else if (type == "double") {
+      var word = cm.findWordAt(start);
+      if (cm.display.shift || doc.extend)
+        ourRange = extendRange(doc, ourRange, word.anchor, word.head);
+      else
+        ourRange = word;
+    } else if (type == "triple") {
+      var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
+      if (cm.display.shift || doc.extend)
+        ourRange = extendRange(doc, ourRange, line.anchor, line.head);
+      else
+        ourRange = line;
+    } else {
+      ourRange = extendRange(doc, ourRange, start);
+    }
+
+    if (!addNew) {
+      ourIndex = 0;
+      setSelection(doc, new Selection([ourRange], 0), sel_mouse);
+      startSel = doc.sel;
+    } else if (ourIndex == -1) {
+      ourIndex = ranges.length;
+      setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
+                   {scroll: false, origin: "*mouse"});
+    } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
+      setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+                   {scroll: false, origin: "*mouse"});
+      startSel = doc.sel;
+    } else {
+      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
+    }
+
+    var lastPos = start;
+    function extendTo(pos) {
+      if (cmp(lastPos, pos) == 0) return;
+      lastPos = pos;
+
+      if (type == "rect") {
+        var ranges = [], tabSize = cm.options.tabSize;
+        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
+        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
+        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
+        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+             line <= end; line++) {
+          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
+          if (left == right)
+            ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
+          else if (text.length > leftPos)
+            ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
+        }
+        if (!ranges.length) ranges.push(new Range(start, start));
+        setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+                     {origin: "*mouse", scroll: false});
+        cm.scrollIntoView(pos);
+      } else {
+        var oldRange = ourRange;
+        var anchor = oldRange.anchor, head = pos;
+        if (type != "single") {
+          if (type == "double")
+            var range = cm.findWordAt(pos);
+          else
+            var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
+          if (cmp(range.anchor, anchor) > 0) {
+            head = range.head;
+            anchor = minPos(oldRange.from(), range.anchor);
+          } else {
+            head = range.anchor;
+            anchor = maxPos(oldRange.to(), range.head);
+          }
+        }
+        var ranges = startSel.ranges.slice(0);
+        ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
+        setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
+      }
+    }
+
+    var editorSize = display.wrapper.getBoundingClientRect();
+    // Used to ensure timeout re-tries don't fire when another extend
+    // happened in the meantime (clearTimeout isn't reliable -- at
+    // least on Chrome, the timeouts still happen even when cleared,
+    // if the clear happens after their scheduled firing time).
+    var counter = 0;
+
+    function extend(e) {
+      var curCount = ++counter;
+      var cur = posFromMouse(cm, e, true, type == "rect");
+      if (!cur) return;
+      if (cmp(cur, lastPos) != 0) {
+        cm.curOp.focus = activeElt();
+        extendTo(cur);
+        var visible = visibleLines(display, doc);
+        if (cur.line >= visible.to || cur.line < visible.from)
+          setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
+      } else {
+        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
+        if (outside) setTimeout(operation(cm, function() {
+          if (counter != curCount) return;
+          display.scroller.scrollTop += outside;
+          extend(e);
+        }), 50);
+      }
+    }
+
+    function done(e) {
+      cm.state.selectingText = false;
+      counter = Infinity;
+      e_preventDefault(e);
+      display.input.focus();
+      off(document, "mousemove", move);
+      off(document, "mouseup", up);
+      doc.history.lastSelOrigin = null;
+    }
+
+    var move = operation(cm, function(e) {
+      if (!e_button(e)) done(e);
+      else extend(e);
+    });
+    var up = operation(cm, done);
+    cm.state.selectingText = up;
+    on(document, "mousemove", move);
+    on(document, "mouseup", up);
+  }
+
+  // Determines whether an event happened in the gutter, and fires the
+  // handlers for the corresponding event.
+  function gutterEvent(cm, e, type, prevent) {
+    try { var mX = e.clientX, mY = e.clientY; }
+    catch(e) { return false; }
+    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
+    if (prevent) e_preventDefault(e);
+
+    var display = cm.display;
+    var lineBox = display.lineDiv.getBoundingClientRect();
+
+    if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
+    mY -= lineBox.top - display.viewOffset;
+
+    for (var i = 0; i < cm.options.gutters.length; ++i) {
+      var g = display.gutters.childNodes[i];
+      if (g && g.getBoundingClientRect().right >= mX) {
+        var line = lineAtHeight(cm.doc, mY);
+        var gutter = cm.options.gutters[i];
+        signal(cm, type, cm, line, gutter, e);
+        return e_defaultPrevented(e);
+      }
+    }
+  }
+
+  function clickInGutter(cm, e) {
+    return gutterEvent(cm, e, "gutterClick", true);
+  }
+
+  // Kludge to work around strange IE behavior where it'll sometimes
+  // re-fire a series of drag-related events right after the drop (#1551)
+  var lastDrop = 0;
+
+  function onDrop(e) {
+    var cm = this;
+    clearDragCursor(cm);
+    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+      return;
+    e_preventDefault(e);
+    if (ie) lastDrop = +new Date;
+    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
+    if (!pos || cm.isReadOnly()) return;
+    // Might be a file drop, in which case we simply extract the text
+    // and insert it.
+    if (files && files.length && window.FileReader && window.File) {
+      var n = files.length, text = Array(n), read = 0;
+      var loadFile = function(file, i) {
+        if (cm.options.allowDropFileTypes &&
+            indexOf(cm.options.allowDropFileTypes, file.type) == -1)
+          return;
+
+        var reader = new FileReader;
+        reader.onload = operation(cm, function() {
+          var content = reader.result;
+          if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) content = "";
+          text[i] = content;
+          if (++read == n) {
+            pos = clipPos(cm.doc, pos);
+            var change = {from: pos, to: pos,
+                          text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+                          origin: "paste"};
+            makeChange(cm.doc, change);
+            setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
+          }
+        });
+        reader.readAsText(file);
+      };
+      for (var i = 0; i < n; ++i) loadFile(files[i], i);
+    } else { // Normal drop
+      // Don't do a replace if the drop happened inside of the selected text.
+      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+        cm.state.draggingText(e);
+        // Ensure the editor is re-focused
+        setTimeout(function() {cm.display.input.focus();}, 20);
+        return;
+      }
+      try {
+        var text = e.dataTransfer.getData("Text");
+        if (text) {
+          if (cm.state.draggingText && !cm.state.draggingText.copy)
+            var selected = cm.listSelections();
+          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
+          if (selected) for (var i = 0; i < selected.length; ++i)
+            replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
+          cm.replaceSelection(text, "around", "paste");
+          cm.display.input.focus();
+        }
+      }
+      catch(e){}
+    }
+  }
+
+  function onDragStart(cm, e) {
+    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
+    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
+
+    e.dataTransfer.setData("Text", cm.getSelection());
+    e.dataTransfer.effectAllowed = "copyMove"
+
+    // Use dummy image instead of default browsers image.
+    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+    if (e.dataTransfer.setDragImage && !safari) {
+      var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
+      img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
+      if (presto) {
+        img.width = img.height = 1;
+        cm.display.wrapper.appendChild(img);
+        // Force a relayout, or Opera won't use our image for some obscure reason
+        img._top = img.offsetTop;
+      }
+      e.dataTransfer.setDragImage(img, 0, 0);
+      if (presto) img.parentNode.removeChild(img);
+    }
+  }
+
+  function onDragOver(cm, e) {
+    var pos = posFromMouse(cm, e);
+    if (!pos) return;
+    var frag = document.createDocumentFragment();
+    drawSelectionCursor(cm, pos, frag);
+    if (!cm.display.dragCursor) {
+      cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
+      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
+    }
+    removeChildrenAndAdd(cm.display.dragCursor, frag);
+  }
+
+  function clearDragCursor(cm) {
+    if (cm.display.dragCursor) {
+      cm.display.lineSpace.removeChild(cm.display.dragCursor);
+      cm.display.dragCursor = null;
+    }
+  }
+
+  // SCROLL EVENTS
+
+  // Sync the scrollable area and scrollbars, ensure the viewport
+  // covers the visible area.
+  function setScrollTop(cm, val) {
+    if (Math.abs(cm.doc.scrollTop - val) < 2) return;
+    cm.doc.scrollTop = val;
+    if (!gecko) updateDisplaySimple(cm, {top: val});
+    if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
+    cm.display.scrollbars.setScrollTop(val);
+    if (gecko) updateDisplaySimple(cm);
+    startWorker(cm, 100);
+  }
+  // Sync scroller and scrollbar, ensure the gutter elements are
+  // aligned.
+  function setScrollLeft(cm, val, isScroller) {
+    if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
+    val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
+    cm.doc.scrollLeft = val;
+    alignHorizontally(cm);
+    if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
+    cm.display.scrollbars.setScrollLeft(val);
+  }
+
+  // Since the delta values reported on mouse wheel events are
+  // unstandardized between browsers and even browser versions, and
+  // generally horribly unpredictable, this code starts by measuring
+  // the scroll effect that the first few mouse wheel events have,
+  // and, from that, detects the way it can convert deltas to pixel
+  // offsets afterwards.
+  //
+  // The reason we want to know the amount a wheel event will scroll
+  // is that it gives us a chance to update the display before the
+  // actual scrolling happens, reducing flickering.
+
+  var wheelSamples = 0, wheelPixelsPerUnit = null;
+  // Fill in a browser-detected starting value on browsers where we
+  // know one. These don't have to be accurate -- the result of them
+  // being wrong would just be a slight flicker on the first wheel
+  // scroll (if it is large enough).
+  if (ie) wheelPixelsPerUnit = -.53;
+  else if (gecko) wheelPixelsPerUnit = 15;
+  else if (chrome) wheelPixelsPerUnit = -.7;
+  else if (safari) wheelPixelsPerUnit = -1/3;
+
+  var wheelEventDelta = function(e) {
+    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
+    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
+    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
+    else if (dy == null) dy = e.wheelDelta;
+    return {x: dx, y: dy};
+  };
+  CodeMirror.wheelEventPixels = function(e) {
+    var delta = wheelEventDelta(e);
+    delta.x *= wheelPixelsPerUnit;
+    delta.y *= wheelPixelsPerUnit;
+    return delta;
+  };
+
+  function onScrollWheel(cm, e) {
+    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
+
+    var display = cm.display, scroll = display.scroller;
+    // Quit if there's nothing to scroll here
+    var canScrollX = scroll.scrollWidth > scroll.clientWidth;
+    var canScrollY = scroll.scrollHeight > scroll.clientHeight;
+    if (!(dx && canScrollX || dy && canScrollY)) return;
+
+    // Webkit browsers on OS X abort momentum scrolls when the target
+    // of the scroll event is removed from the scrollable element.
+    // This hack (see related code in patchDisplay) makes sure the
+    // element is kept around.
+    if (dy && mac && webkit) {
+      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+        for (var i = 0; i < view.length; i++) {
+          if (view[i].node == cur) {
+            cm.display.currentWheelTarget = cur;
+            break outer;
+          }
+        }
+      }
+    }
+
+    // On some browsers, horizontal scrolling will cause redraws to
+    // happen before the gutter has been realigned, causing it to
+    // wriggle around in a most unseemly way. When we have an
+    // estimated pixels/delta value, we just handle horizontal
+    // scrolling entirely here. It'll be slightly off from native, but
+    // better than glitching out.
+    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+      if (dy && canScrollY)
+        setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
+      setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
+      // Only prevent default scrolling if vertical scrolling is
+      // actually possible. Otherwise, it causes vertical scroll
+      // jitter on OSX trackpads when deltaX is small and deltaY
+      // is large (issue #3579)
+      if (!dy || (dy && canScrollY))
+        e_preventDefault(e);
+      display.wheelStartX = null; // Abort measurement, if in progress
+      return;
+    }
+
+    // 'Project' the visible viewport to cover the area that is being
+    // scrolled into view (if we know enough to estimate it).
+    if (dy && wheelPixelsPerUnit != null) {
+      var pixels = dy * wheelPixelsPerUnit;
+      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
+      if (pixels < 0) top = Math.max(0, top + pixels - 50);
+      else bot = Math.min(cm.doc.height, bot + pixels + 50);
+      updateDisplaySimple(cm, {top: top, bottom: bot});
+    }
+
+    if (wheelSamples < 20) {
+      if (display.wheelStartX == null) {
+        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
+        display.wheelDX = dx; display.wheelDY = dy;
+        setTimeout(function() {
+          if (display.wheelStartX == null) return;
+          var movedX = scroll.scrollLeft - display.wheelStartX;
+          var movedY = scroll.scrollTop - display.wheelStartY;
+          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+            (movedX && display.wheelDX && movedX / display.wheelDX);
+          display.wheelStartX = display.wheelStartY = null;
+          if (!sample) return;
+          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
+          ++wheelSamples;
+        }, 200);
+      } else {
+        display.wheelDX += dx; display.wheelDY += dy;
+      }
+    }
+  }
+
+  // KEY EVENTS
+
+  // Run a handler that was bound to a key.
+  function doHandleBinding(cm, bound, dropShift) {
+    if (typeof bound == "string") {
+      bound = commands[bound];
+      if (!bound) return false;
+    }
+    // Ensure previous input has been read, so that the handler sees a
+    // consistent view of the document
+    cm.display.input.ensurePolled();
+    var prevShift = cm.display.shift, done = false;
+    try {
+      if (cm.isReadOnly()) cm.state.suppressEdits = true;
+      if (dropShift) cm.display.shift = false;
+      done = bound(cm) != Pass;
+    } finally {
+      cm.display.shift = prevShift;
+      cm.state.suppressEdits = false;
+    }
+    return done;
+  }
+
+  function lookupKeyForEditor(cm, name, handle) {
+    for (var i = 0; i < cm.state.keyMaps.length; i++) {
+      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
+      if (result) return result;
+    }
+    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+      || lookupKey(name, cm.options.keyMap, handle, cm);
+  }
+
+  var stopSeq = new Delayed;
+  function dispatchKey(cm, name, e, handle) {
+    var seq = cm.state.keySeq;
+    if (seq) {
+      if (isModifierKey(name)) return "handled";
+      stopSeq.set(50, function() {
+        if (cm.state.keySeq == seq) {
+          cm.state.keySeq = null;
+          cm.display.input.reset();
+        }
+      });
+      name = seq + " " + name;
+    }
+    var result = lookupKeyForEditor(cm, name, handle);
+
+    if (result == "multi")
+      cm.state.keySeq = name;
+    if (result == "handled")
+      signalLater(cm, "keyHandled", cm, name, e);
+
+    if (result == "handled" || result == "multi") {
+      e_preventDefault(e);
+      restartBlink(cm);
+    }
+
+    if (seq && !result && /\'$/.test(name)) {
+      e_preventDefault(e);
+      return true;
+    }
+    return !!result;
+  }
+
+  // Handle a key from the keydown event.
+  function handleKeyBinding(cm, e) {
+    var name = keyName(e, true);
+    if (!name) return false;
+
+    if (e.shiftKey && !cm.state.keySeq) {
+      // First try to resolve full name (including 'Shift-'). Failing
+      // that, see if there is a cursor-motion command (starting with
+      // 'go') bound to the keyname without 'Shift-'.
+      return dispatchKey(cm, "Shift-" + name, e, function(b) {return doHandleBinding(cm, b, true);})
+          || dispatchKey(cm, name, e, function(b) {
+               if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+                 return doHandleBinding(cm, b);
+             });
+    } else {
+      return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); });
+    }
+  }
+
+  // Handle a key from the keypress event
+  function handleCharBinding(cm, e, ch) {
+    return dispatchKey(cm, "'" + ch + "'", e,
+                       function(b) { return doHandleBinding(cm, b, true); });
+  }
+
+  var lastStoppedKey = null;
+  function onKeyDown(e) {
+    var cm = this;
+    cm.curOp.focus = activeElt();
+    if (signalDOMEvent(cm, e)) return;
+    // IE does strange things with escape.
+    if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
+    var code = e.keyCode;
+    cm.display.shift = code == 16 || e.shiftKey;
+    var handled = handleKeyBinding(cm, e);
+    if (presto) {
+      lastStoppedKey = handled ? code : null;
+      // Opera has no cut event... we try to at least catch the key combo
+      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+        cm.replaceSelection("", null, "cut");
+    }
+
+    // Turn mouse into crosshair when Alt is held on Mac.
+    if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+      showCrossHair(cm);
+  }
+
+  function showCrossHair(cm) {
+    var lineDiv = cm.display.lineDiv;
+    addClass(lineDiv, "CodeMirror-crosshair");
+
+    function up(e) {
+      if (e.keyCode == 18 || !e.altKey) {
+        rmClass(lineDiv, "CodeMirror-crosshair");
+        off(document, "keyup", up);
+        off(document, "mouseover", up);
+      }
+    }
+    on(document, "keyup", up);
+    on(document, "mouseover", up);
+  }
+
+  function onKeyUp(e) {
+    if (e.keyCode == 16) this.doc.sel.shift = false;
+    signalDOMEvent(this, e);
+  }
+
+  function onKeyPress(e) {
+    var cm = this;
+    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
+    var keyCode = e.keyCode, charCode = e.charCode;
+    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
+    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return;
+    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
+    if (handleCharBinding(cm, e, ch)) return;
+    cm.display.input.onKeyPress(e);
+  }
+
+  // FOCUS/BLUR EVENTS
+
+  function delayBlurEvent(cm) {
+    cm.state.delayingBlurEvent = true;
+    setTimeout(function() {
+      if (cm.state.delayingBlurEvent) {
+        cm.state.delayingBlurEvent = false;
+        onBlur(cm);
+      }
+    }, 100);
+  }
+
+  function onFocus(cm) {
+    if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;
+
+    if (cm.options.readOnly == "nocursor") return;
+    if (!cm.state.focused) {
+      signal(cm, "focus", cm);
+      cm.state.focused = true;
+      addClass(cm.display.wrapper, "CodeMirror-focused");
+      // This test prevents this from firing when a context
+      // menu is closed (since the input reset would kill the
+      // select-all detection hack)
+      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+        cm.display.input.reset();
+        if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730
+      }
+      cm.display.input.receivedFocus();
+    }
+    restartBlink(cm);
+  }
+  function onBlur(cm) {
+    if (cm.state.delayingBlurEvent) return;
+
+    if (cm.state.focused) {
+      signal(cm, "blur", cm);
+      cm.state.focused = false;
+      rmClass(cm.display.wrapper, "CodeMirror-focused");
+    }
+    clearInterval(cm.display.blinker);
+    setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
+  }
+
+  // CONTEXT MENU HANDLING
+
+  // To make the context menu work, we need to briefly unhide the
+  // textarea (making it as unobtrusive as possible) to let the
+  // right-click take effect on it.
+  function onContextMenu(cm, e) {
+    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;
+    if (signalDOMEvent(cm, e, "contextmenu")) return;
+    cm.display.input.onContextMenu(e);
+  }
+
+  function contextMenuInGutter(cm, e) {
+    if (!hasHandler(cm, "gutterContextMenu")) return false;
+    return gutterEvent(cm, e, "gutterContextMenu", false);
+  }
+
+  // UPDATING
+
+  // Compute the position of the end of a change (its 'to' property
+  // refers to the pre-change end).
+  var changeEnd = CodeMirror.changeEnd = function(change) {
+    if (!change.text) return change.to;
+    return Pos(change.from.line + change.text.length - 1,
+               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
+  };
+
+  // Adjust a position to refer to the post-change position of the
+  // same text, or the end of the change if the change covers it.
+  function adjustForChange(pos, change) {
+    if (cmp(pos, change.from) < 0) return pos;
+    if (cmp(pos, change.to) <= 0) return changeEnd(change);
+
+    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
+    if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
+    return Pos(line, ch);
+  }
+
+  function computeSelAfterChange(doc, change) {
+    var out = [];
+    for (var i = 0; i < doc.sel.ranges.length; i++) {
+      var range = doc.sel.ranges[i];
+      out.push(new Range(adjustForChange(range.anchor, change),
+                         adjustForChange(range.head, change)));
+    }
+    return normalizeSelection(out, doc.sel.primIndex);
+  }
+
+  function offsetPos(pos, old, nw) {
+    if (pos.line == old.line)
+      return Pos(nw.line, pos.ch - old.ch + nw.ch);
+    else
+      return Pos(nw.line + (pos.line - old.line), pos.ch);
+  }
+
+  // Used by replaceSelections to allow moving the selection to the
+  // start or around the replaced test. Hint may be "start" or "around".
+  function computeReplacedSel(doc, changes, hint) {
+    var out = [];
+    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
+    for (var i = 0; i < changes.length; i++) {
+      var change = changes[i];
+      var from = offsetPos(change.from, oldPrev, newPrev);
+      var to = offsetPos(changeEnd(change), oldPrev, newPrev);
+      oldPrev = change.to;
+      newPrev = to;
+      if (hint == "around") {
+        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
+        out[i] = new Range(inv ? to : from, inv ? from : to);
+      } else {
+        out[i] = new Range(from, from);
+      }
+    }
+    return new Selection(out, doc.sel.primIndex);
+  }
+
+  // Allow "beforeChange" event handlers to influence a change
+  function filterChange(doc, change, update) {
+    var obj = {
+      canceled: false,
+      from: change.from,
+      to: change.to,
+      text: change.text,
+      origin: change.origin,
+      cancel: function() { this.canceled = true; }
+    };
+    if (update) obj.update = function(from, to, text, origin) {
+      if (from) this.from = clipPos(doc, from);
+      if (to) this.to = clipPos(doc, to);
+      if (text) this.text = text;
+      if (origin !== undefined) this.origin = origin;
+    };
+    signal(doc, "beforeChange", doc, obj);
+    if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
+
+    if (obj.canceled) return null;
+    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
+  }
+
+  // Apply a change to a document, and add it to the document's
+  // history, and propagating it to all linked documents.
+  function makeChange(doc, change, ignoreReadOnly) {
+    if (doc.cm) {
+      if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
+      if (doc.cm.state.suppressEdits) return;
+    }
+
+    if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+      change = filterChange(doc, change, true);
+      if (!change) return;
+    }
+
+    // Possibly split or suppress the update based on the presence
+    // of read-only spans in its range.
+    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
+    if (split) {
+      for (var i = split.length - 1; i >= 0; --i)
+        makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
+    } else {
+      makeChangeInner(doc, change);
+    }
+  }
+
+  function makeChangeInner(doc, change) {
+    if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
+    var selAfter = computeSelAfterChange(doc, change);
+    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
+
+    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
+    var rebased = [];
+
+    linkedDocs(doc, function(doc, sharedHist) {
+      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+        rebaseHist(doc.history, change);
+        rebased.push(doc.history);
+      }
+      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
+    });
+  }
+
+  // Revert a change stored in a document's history.
+  function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+    if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) return;
+
+    var hist = doc.history, event, selAfter = doc.sel;
+    var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
+
+    // Verify that there is a useable event (so that ctrl-z won't
+    // needlessly clear selection events)
+    for (var i = 0; i < source.length; i++) {
+      event = source[i];
+      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+        break;
+    }
+    if (i == source.length) return;
+    hist.lastOrigin = hist.lastSelOrigin = null;
+
+    for (;;) {
+      event = source.pop();
+      if (event.ranges) {
+        pushSelectionToHistory(event, dest);
+        if (allowSelectionOnly && !event.equals(doc.sel)) {
+          setSelection(doc, event, {clearRedo: false});
+          return;
+        }
+        selAfter = event;
+      }
+      else break;
+    }
+
+    // Build up a reverse change object to add to the opposite history
+    // stack (redo when undoing, and vice versa).
+    var antiChanges = [];
+    pushSelectionToHistory(selAfter, dest);
+    dest.push({changes: antiChanges, generation: hist.generation});
+    hist.generation = event.generation || ++hist.maxGeneration;
+
+    var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
+
+    for (var i = event.changes.length - 1; i >= 0; --i) {
+      var change = event.changes[i];
+      change.origin = type;
+      if (filter && !filterChange(doc, change, false)) {
+        source.length = 0;
+        return;
+      }
+
+      antiChanges.push(historyChangeFromChange(doc, change));
+
+      var after = i ? computeSelAfterChange(doc, change) : lst(source);
+      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
+      if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
+      var rebased = [];
+
+      // Propagate to the linked documents
+      linkedDocs(doc, function(doc, sharedHist) {
+        if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+          rebaseHist(doc.history, change);
+          rebased.push(doc.history);
+        }
+        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
+      });
+    }
+  }
+
+  // Sub-views need their line numbers shifted when text is added
+  // above or below them in the parent document.
+  function shiftDoc(doc, distance) {
+    if (distance == 0) return;
+    doc.first += distance;
+    doc.sel = new Selection(map(doc.sel.ranges, function(range) {
+      return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
+                       Pos(range.head.line + distance, range.head.ch));
+    }), doc.sel.primIndex);
+    if (doc.cm) {
+      regChange(doc.cm, doc.first, doc.first - distance, distance);
+      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+        regLineChange(doc.cm, l, "gutter");
+    }
+  }
+
+  // More lower-level change function, handling only a single document
+  // (not linked ones).
+  function makeChangeSingleDoc(doc, change, selAfter, spans) {
+    if (doc.cm && !doc.cm.curOp)
+      return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
+
+    if (change.to.line < doc.first) {
+      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
+      return;
+    }
+    if (change.from.line > doc.lastLine()) return;
+
+    // Clip the change to the size of this doc
+    if (change.from.line < doc.first) {
+      var shift = change.text.length - 1 - (doc.first - change.from.line);
+      shiftDoc(doc, shift);
+      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+                text: [lst(change.text)], origin: change.origin};
+    }
+    var last = doc.lastLine();
+    if (change.to.line > last) {
+      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+                text: [change.text[0]], origin: change.origin};
+    }
+
+    change.removed = getBetween(doc, change.from, change.to);
+
+    if (!selAfter) selAfter = computeSelAfterChange(doc, change);
+    if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
+    else updateDoc(doc, change, spans);
+    setSelectionNoUndo(doc, selAfter, sel_dontScroll);
+  }
+
+  // Handle the interaction of a change to a document with the editor
+  // that this document is part of.
+  function makeChangeSingleDocInEditor(cm, change, spans) {
+    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
+
+    var recomputeMaxLength = false, checkWidthStart = from.line;
+    if (!cm.options.lineWrapping) {
+      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
+      doc.iter(checkWidthStart, to.line + 1, function(line) {
+        if (line == display.maxLine) {
+          recomputeMaxLength = true;
+          return true;
+        }
+      });
+    }
+
+    if (doc.sel.contains(change.from, change.to) > -1)
+      signalCursorActivity(cm);
+
+    updateDoc(doc, change, spans, estimateHeight(cm));
+
+    if (!cm.options.lineWrapping) {
+      doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
+        var len = lineLength(line);
+        if (len > display.maxLineLength) {
+          display.maxLine = line;
+          display.maxLineLength = len;
+          display.maxLineChanged = true;
+          recomputeMaxLength = false;
+        }
+      });
+      if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
+    }
+
+    // Adjust frontier, schedule worker
+    doc.frontier = Math.min(doc.frontier, from.line);
+    startWorker(cm, 400);
+
+    var lendiff = change.text.length - (to.line - from.line) - 1;
+    // Remember that these lines changed, for updating the display
+    if (change.full)
+      regChange(cm);
+    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+      regLineChange(cm, from.line, "text");
+    else
+      regChange(cm, from.line, to.line + 1, lendiff);
+
+    var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
+    if (changeHandler || changesHandler) {
+      var obj = {
+        from: from, to: to,
+        text: change.text,
+        removed: change.removed,
+        origin: change.origin
+      };
+      if (changeHandler) signalLater(cm, "change", cm, obj);
+      if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
+    }
+    cm.display.selForContextMenu = null;
+  }
+
+  function replaceRange(doc, code, from, to, origin) {
+    if (!to) to = from;
+    if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
+    if (typeof code == "string") code = doc.splitLines(code);
+    makeChange(doc, {from: from, to: to, text: code, origin: origin});
+  }
+
+  // SCROLLING THINGS INTO VIEW
+
+  // If an editor sits on the top or bottom of the window, partially
+  // scrolled out of view, this ensures that the cursor is visible.
+  function maybeScrollWindow(cm, coords) {
+    if (signalDOMEvent(cm, "scrollCursorIntoView")) return;
+
+    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
+    if (coords.top + box.top < 0) doScroll = true;
+    else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
+    if (doScroll != null && !phantom) {
+      var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
+                           (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
+                           (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " +
+                           coords.left + "px; width: 2px;");
+      cm.display.lineSpace.appendChild(scrollNode);
+      scrollNode.scrollIntoView(doScroll);
+      cm.display.lineSpace.removeChild(scrollNode);
+    }
+  }
+
+  // Scroll a given position into view (immediately), verifying that
+  // it actually became visible (as line heights are accurately
+  // measured, the position of something may 'drift' during drawing).
+  function scrollPosIntoView(cm, pos, end, margin) {
+    if (margin == null) margin = 0;
+    for (var limit = 0; limit < 5; limit++) {
+      var changed = false, coords = cursorCoords(cm, pos);
+      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
+      var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
+                                         Math.min(coords.top, endCoords.top) - margin,
+                                         Math.max(coords.left, endCoords.left),
+                                         Math.max(coords.bottom, endCoords.bottom) + margin);
+      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
+      if (scrollPos.scrollTop != null) {
+        setScrollTop(cm, scrollPos.scrollTop);
+        if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
+      }
+      if (scrollPos.scrollLeft != null) {
+        setScrollLeft(cm, scrollPos.scrollLeft);
+        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
+      }
+      if (!changed) break;
+    }
+    return coords;
+  }
+
+  // Scroll a given set of coordinates into view (immediately).
+  function scrollIntoView(cm, x1, y1, x2, y2) {
+    var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
+    if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
+    if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
+  }
+
+  // Calculate a new scroll position needed to scroll the given
+  // rectangle into view. Returns an object with scrollTop and
+  // scrollLeft properties. When these are undefined, the
+  // vertical/horizontal position does not need to be adjusted.
+  function calculateScrollPos(cm, x1, y1, x2, y2) {
+    var display = cm.display, snapMargin = textHeight(cm.display);
+    if (y1 < 0) y1 = 0;
+    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
+    var screen = displayHeight(cm), result = {};
+    if (y2 - y1 > screen) y2 = y1 + screen;
+    var docBottom = cm.doc.height + paddingVert(display);
+    var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
+    if (y1 < screentop) {
+      result.scrollTop = atTop ? 0 : y1;
+    } else if (y2 > screentop + screen) {
+      var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
+      if (newTop != screentop) result.scrollTop = newTop;
+    }
+
+    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
+    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
+    var tooWide = x2 - x1 > screenw;
+    if (tooWide) x2 = x1 + screenw;
+    if (x1 < 10)
+      result.scrollLeft = 0;
+    else if (x1 < screenleft)
+      result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
+    else if (x2 > screenw + screenleft - 3)
+      result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
+    return result;
+  }
+
+  // Store a relative adjustment to the scroll position in the current
+  // operation (to be applied when the operation finishes).
+  function addToScrollPos(cm, left, top) {
+    if (left != null || top != null) resolveScrollToPos(cm);
+    if (left != null)
+      cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
+    if (top != null)
+      cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
+  }
+
+  // Make sure that at the end of the operation the current cursor is
+  // shown.
+  function ensureCursorVisible(cm) {
+    resolveScrollToPos(cm);
+    var cur = cm.getCursor(), from = cur, to = cur;
+    if (!cm.options.lineWrapping) {
+      from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
+      to = Pos(cur.line, cur.ch + 1);
+    }
+    cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
+  }
+
+  // When an operation has its scrollToPos property set, and another
+  // scroll action is applied before the end of the operation, this
+  // 'simulates' scrolling that position into view in a cheap way, so
+  // that the effect of intermediate scroll commands is not ignored.
+  function resolveScrollToPos(cm) {
+    var range = cm.curOp.scrollToPos;
+    if (range) {
+      cm.curOp.scrollToPos = null;
+      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
+      var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
+                                    Math.min(from.top, to.top) - range.margin,
+                                    Math.max(from.right, to.right),
+                                    Math.max(from.bottom, to.bottom) + range.margin);
+      cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+    }
+  }
+
+  // API UTILITIES
+
+  // Indent the given line. The how parameter can be "smart",
+  // "add"/null, "subtract", or "prev". When aggressive is false
+  // (typically set to true for forced single-line indents), empty
+  // lines are not indented, and places where the mode returns Pass
+  // are left alone.
+  function indentLine(cm, n, how, aggressive) {
+    var doc = cm.doc, state;
+    if (how == null) how = "add";
+    if (how == "smart") {
+      // Fall back to "prev" when the mode doesn't have an indentation
+      // method.
+      if (!doc.mode.indent) how = "prev";
+      else state = getStateBefore(cm, n);
+    }
+
+    var tabSize = cm.options.tabSize;
+    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
+    if (line.stateAfter) line.stateAfter = null;
+    var curSpaceString = line.text.match(/^\s*/)[0], indentation;
+    if (!aggressive && !/\S/.test(line.text)) {
+      indentation = 0;
+      how = "not";
+    } else if (how == "smart") {
+      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+      if (indentation == Pass || indentation > 150) {
+        if (!aggressive) return;
+        how = "prev";
+      }
+    }
+    if (how == "prev") {
+      if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
+      else indentation = 0;
+    } else if (how == "add") {
+      indentation = curSpace + cm.options.indentUnit;
+    } else if (how == "subtract") {
+      indentation = curSpace - cm.options.indentUnit;
+    } else if (typeof how == "number") {
+      indentation = curSpace + how;
+    }
+    indentation = Math.max(0, indentation);
+
+    var indentString = "", pos = 0;
+    if (cm.options.indentWithTabs)
+      for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
+    if (pos < indentation) indentString += spaceStr(indentation - pos);
+
+    if (indentString != curSpaceString) {
+      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
+      line.stateAfter = null;
+      return true;
+    } else {
+      // Ensure that, if the cursor was in the whitespace at the start
+      // of the line, it is moved to the end of that space.
+      for (var i = 0; i < doc.sel.ranges.length; i++) {
+        var range = doc.sel.ranges[i];
+        if (range.head.line == n && range.head.ch < curSpaceString.length) {
+          var pos = Pos(n, curSpaceString.length);
+          replaceOneSelection(doc, i, new Range(pos, pos));
+          break;
+        }
+      }
+    }
+  }
+
+  // Utility for applying a change to a line by handle or number,
+  // returning the number and optionally registering the line as
+  // changed.
+  function changeLine(doc, handle, changeType, op) {
+    var no = handle, line = handle;
+    if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
+    else no = lineNo(handle);
+    if (no == null) return null;
+    if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
+    return line;
+  }
+
+  // Helper for deleting text near the selection(s), used to implement
+  // backspace, delete, and similar functionality.
+  function deleteNearSelection(cm, compute) {
+    var ranges = cm.doc.sel.ranges, kill = [];
+    // Build up a set of ranges to kill first, merging overlapping
+    // ranges.
+    for (var i = 0; i < ranges.length; i++) {
+      var toKill = compute(ranges[i]);
+      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+        var replaced = kill.pop();
+        if (cmp(replaced.from, toKill.from) < 0) {
+          toKill.from = replaced.from;
+          break;
+        }
+      }
+      kill.push(toKill);
+    }
+    // Next, remove those actual ranges.
+    runInOp(cm, function() {
+      for (var i = kill.length - 1; i >= 0; i--)
+        replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
+      ensureCursorVisible(cm);
+    });
+  }
+
+  // Used for horizontal relative motion. Dir is -1 or 1 (left or
+  // right), unit can be "char", "column" (like char, but doesn't
+  // cross line boundaries), "word" (across next word), or "group" (to
+  // the start of next group of word or non-word-non-whitespace
+  // chars). The visually param controls whether, in right-to-left
+  // text, direction 1 means to move towards the next index in the
+  // string, or towards the character to the right of the current
+  // position. The resulting position will have a hitSide=true
+  // property if it reached the end of the document.
+  function findPosH(doc, pos, dir, unit, visually) {
+    var line = pos.line, ch = pos.ch, origDir = dir;
+    var lineObj = getLine(doc, line);
+    function findNextLine() {
+      var l = line + dir;
+      if (l < doc.first || l >= doc.first + doc.size) return false
+      line = l;
+      return lineObj = getLine(doc, l);
+    }
+    function moveOnce(boundToLine) {
+      var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
+      if (next == null) {
+        if (!boundToLine && findNextLine()) {
+          if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
+          else ch = dir < 0 ? lineObj.text.length : 0;
+        } else return false
+      } else ch = next;
+      return true;
+    }
+
+    if (unit == "char") {
+      moveOnce()
+    } else if (unit == "column") {
+      moveOnce(true)
+    } else if (unit == "word" || unit == "group") {
+      var sawType = null, group = unit == "group";
+      var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
+      for (var first = true;; first = false) {
+        if (dir < 0 && !moveOnce(!first)) break;
+        var cur = lineObj.text.charAt(ch) || "\n";
+        var type = isWordChar(cur, helper) ? "w"
+          : group && cur == "\n" ? "n"
+          : !group || /\s/.test(cur) ? null
+          : "p";
+        if (group && !first && !type) type = "s";
+        if (sawType && sawType != type) {
+          if (dir < 0) {dir = 1; moveOnce();}
+          break;
+        }
+
+        if (type) sawType = type;
+        if (dir > 0 && !moveOnce(!first)) break;
+      }
+    }
+    var result = skipAtomic(doc, Pos(line, ch), pos, origDir, true);
+    if (!cmp(pos, result)) result.hitSide = true;
+    return result;
+  }
+
+  // For relative vertical movement. Dir may be -1 or 1. Unit can be
+  // "page" or "line". The resulting position will have a hitSide=true
+  // property if it reached the end of the document.
+  function findPosV(cm, pos, dir, unit) {
+    var doc = cm.doc, x = pos.left, y;
+    if (unit == "page") {
+      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
+      y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
+    } else if (unit == "line") {
+      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
+    }
+    for (;;) {
+      var target = coordsChar(cm, x, y);
+      if (!target.outside) break;
+      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
+      y += dir * 5;
+    }
+    return target;
+  }
+
+  // EDITOR METHODS
+
+  // The publicly visible API. Note that methodOp(f) means
+  // 'wrap f in an operation, performed on its `this` parameter'.
+
+  // This is not the complete set of editor methods. Most of the
+  // methods defined on the Doc type are also injected into
+  // CodeMirror.prototype, for backwards compatibility and
+  // convenience.
+
+  CodeMirror.prototype = {
+    constructor: CodeMirror,
+    focus: function(){window.focus(); this.display.input.focus();},
+
+    setOption: function(option, value) {
+      var options = this.options, old = options[option];
+      if (options[option] == value && option != "mode") return;
+      options[option] = value;
+      if (optionHandlers.hasOwnProperty(option))
+        operation(this, optionHandlers[option])(this, value, old);
+    },
+
+    getOption: function(option) {return this.options[option];},
+    getDoc: function() {return this.doc;},
+
+    addKeyMap: function(map, bottom) {
+      this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
+    },
+    removeKeyMap: function(map) {
+      var maps = this.state.keyMaps;
+      for (var i = 0; i < maps.length; ++i)
+        if (maps[i] == map || maps[i].name == map) {
+          maps.splice(i, 1);
+          return true;
+        }
+    },
+
+    addOverlay: methodOp(function(spec, options) {
+      var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
+      if (mode.startState) throw new Error("Overlays may not be stateful.");
+      this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
+      this.state.modeGen++;
+      regChange(this);
+    }),
+    removeOverlay: methodOp(function(spec) {
+      var overlays = this.state.overlays;
+      for (var i = 0; i < overlays.length; ++i) {
+        var cur = overlays[i].modeSpec;
+        if (cur == spec || typeof spec == "string" && cur.name == spec) {
+          overlays.splice(i, 1);
+          this.state.modeGen++;
+          regChange(this);
+          return;
+        }
+      }
+    }),
+
+    indentLine: methodOp(function(n, dir, aggressive) {
+      if (typeof dir != "string" && typeof dir != "number") {
+        if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
+        else dir = dir ? "add" : "subtract";
+      }
+      if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
+    }),
+    indentSelection: methodOp(function(how) {
+      var ranges = this.doc.sel.ranges, end = -1;
+      for (var i = 0; i < ranges.length; i++) {
+        var range = ranges[i];
+        if (!range.empty()) {
+          var from = range.from(), to = range.to();
+          var start = Math.max(end, from.line);
+          end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+          for (var j = start; j < end; ++j)
+            indentLine(this, j, how);
+          var newRanges = this.doc.sel.ranges;
+          if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+            replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
+        } else if (range.head.line > end) {
+          indentLine(this, range.head.line, how, true);
+          end = range.head.line;
+          if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
+        }
+      }
+    }),
+
+    // Fetch the parser token for a given character. Useful for hacks
+    // that want to inspect the mode state (say, for completion).
+    getTokenAt: function(pos, precise) {
+      return takeToken(this, pos, precise);
+    },
+
+    getLineTokens: function(line, precise) {
+      return takeToken(this, Pos(line), precise, true);
+    },
+
+    getTokenTypeAt: function(pos) {
+      pos = clipPos(this.doc, pos);
+      var styles = getLineStyles(this, getLine(this.doc, pos.line));
+      var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
+      var type;
+      if (ch == 0) type = styles[2];
+      else for (;;) {
+        var mid = (before + after) >> 1;
+        if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
+        else if (styles[mid * 2 + 1] < ch) before = mid + 1;
+        else { type = styles[mid * 2 + 2]; break; }
+      }
+      var cut = type ? type.indexOf("cm-overlay ") : -1;
+      return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
+    },
+
+    getModeAt: function(pos) {
+      var mode = this.doc.mode;
+      if (!mode.innerMode) return mode;
+      return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
+    },
+
+    getHelper: function(pos, type) {
+      return this.getHelpers(pos, type)[0];
+    },
+
+    getHelpers: function(pos, type) {
+      var found = [];
+      if (!helpers.hasOwnProperty(type)) return found;
+      var help = helpers[type], mode = this.getModeAt(pos);
+      if (typeof mode[type] == "string") {
+        if (help[mode[type]]) found.push(help[mode[type]]);
+      } else if (mode[type]) {
+        for (var i = 0; i < mode[type].length; i++) {
+          var val = help[mode[type][i]];
+          if (val) found.push(val);
+        }
+      } else if (mode.helperType && help[mode.helperType]) {
+        found.push(help[mode.helperType]);
+      } else if (help[mode.name]) {
+        found.push(help[mode.name]);
+      }
+      for (var i = 0; i < help._global.length; i++) {
+        var cur = help._global[i];
+        if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
+          found.push(cur.val);
+      }
+      return found;
+    },
+
+    getStateAfter: function(line, precise) {
+      var doc = this.doc;
+      line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
+      return getStateBefore(this, line + 1, precise);
+    },
+
+    cursorCoords: function(start, mode) {
+      var pos, range = this.doc.sel.primary();
+      if (start == null) pos = range.head;
+      else if (typeof start == "object") pos = clipPos(this.doc, start);
+      else pos = start ? range.from() : range.to();
+      return cursorCoords(this, pos, mode || "page");
+    },
+
+    charCoords: function(pos, mode) {
+      return charCoords(this, clipPos(this.doc, pos), mode || "page");
+    },
+
+    coordsChar: function(coords, mode) {
+      coords = fromCoordSystem(this, coords, mode || "page");
+      return coordsChar(this, coords.left, coords.top);
+    },
+
+    lineAtHeight: function(height, mode) {
+      height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
+      return lineAtHeight(this.doc, height + this.display.viewOffset);
+    },
+    heightAtLine: function(line, mode) {
+      var end = false, lineObj;
+      if (typeof line == "number") {
+        var last = this.doc.first + this.doc.size - 1;
+        if (line < this.doc.first) line = this.doc.first;
+        else if (line > last) { line = last; end = true; }
+        lineObj = getLine(this.doc, line);
+      } else {
+        lineObj = line;
+      }
+      return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
+        (end ? this.doc.height - heightAtLine(lineObj) : 0);
+    },
+
+    defaultTextHeight: function() { return textHeight(this.display); },
+    defaultCharWidth: function() { return charWidth(this.display); },
+
+    setGutterMarker: methodOp(function(line, gutterID, value) {
+      return changeLine(this.doc, line, "gutter", function(line) {
+        var markers = line.gutterMarkers || (line.gutterMarkers = {});
+        markers[gutterID] = value;
+        if (!value && isEmpty(markers)) line.gutterMarkers = null;
+        return true;
+      });
+    }),
+
+    clearGutter: methodOp(function(gutterID) {
+      var cm = this, doc = cm.doc, i = doc.first;
+      doc.iter(function(line) {
+        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+          line.gutterMarkers[gutterID] = null;
+          regLineChange(cm, i, "gutter");
+          if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
+        }
+        ++i;
+      });
+    }),
+
+    lineInfo: function(line) {
+      if (typeof line == "number") {
+        if (!isLine(this.doc, line)) return null;
+        var n = line;
+        line = getLine(this.doc, line);
+        if (!line) return null;
+      } else {
+        var n = lineNo(line);
+        if (n == null) return null;
+      }
+      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+              widgets: line.widgets};
+    },
+
+    getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},
+
+    addWidget: function(pos, node, scroll, vert, horiz) {
+      var display = this.display;
+      pos = cursorCoords(this, clipPos(this.doc, pos));
+      var top = pos.bottom, left = pos.left;
+      node.style.position = "absolute";
+      node.setAttribute("cm-ignore-events", "true");
+      this.display.input.setUneditable(node);
+      display.sizer.appendChild(node);
+      if (vert == "over") {
+        top = pos.top;
+      } else if (vert == "above" || vert == "near") {
+        var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+        hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
+        // Default to positioning above (if specified and possible); otherwise default to positioning below
+        if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+          top = pos.top - node.offsetHeight;
+        else if (pos.bottom + node.offsetHeight <= vspace)
+          top = pos.bottom;
+        if (left + node.offsetWidth > hspace)
+          left = hspace - node.offsetWidth;
+      }
+      node.style.top = top + "px";
+      node.style.left = node.style.right = "";
+      if (horiz == "right") {
+        left = display.sizer.clientWidth - node.offsetWidth;
+        node.style.right = "0px";
+      } else {
+        if (horiz == "left") left = 0;
+        else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
+        node.style.left = left + "px";
+      }
+      if (scroll)
+        scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
+    },
+
+    triggerOnKeyDown: methodOp(onKeyDown),
+    triggerOnKeyPress: methodOp(onKeyPress),
+    triggerOnKeyUp: onKeyUp,
+
+    execCommand: function(cmd) {
+      if (commands.hasOwnProperty(cmd))
+        return commands[cmd].call(null, this);
+    },
+
+    triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
+
+    findPosH: function(from, amount, unit, visually) {
+      var dir = 1;
+      if (amount < 0) { dir = -1; amount = -amount; }
+      for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+        cur = findPosH(this.doc, cur, dir, unit, visually);
+        if (cur.hitSide) break;
+      }
+      return cur;
+    },
+
+    moveH: methodOp(function(dir, unit) {
+      var cm = this;
+      cm.extendSelectionsBy(function(range) {
+        if (cm.display.shift || cm.doc.extend || range.empty())
+          return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
+        else
+          return dir < 0 ? range.from() : range.to();
+      }, sel_move);
+    }),
+
+    deleteH: methodOp(function(dir, unit) {
+      var sel = this.doc.sel, doc = this.doc;
+      if (sel.somethingSelected())
+        doc.replaceSelection("", null, "+delete");
+      else
+        deleteNearSelection(this, function(range) {
+          var other = findPosH(doc, range.head, dir, unit, false);
+          return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
+        });
+    }),
+
+    findPosV: function(from, amount, unit, goalColumn) {
+      var dir = 1, x = goalColumn;
+      if (amount < 0) { dir = -1; amount = -amount; }
+      for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+        var coords = cursorCoords(this, cur, "div");
+        if (x == null) x = coords.left;
+        else coords.left = x;
+        cur = findPosV(this, coords, dir, unit);
+        if (cur.hitSide) break;
+      }
+      return cur;
+    },
+
+    moveV: methodOp(function(dir, unit) {
+      var cm = this, doc = this.doc, goals = [];
+      var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
+      doc.extendSelectionsBy(function(range) {
+        if (collapse)
+          return dir < 0 ? range.from() : range.to();
+        var headPos = cursorCoords(cm, range.head, "div");
+        if (range.goalColumn != null) headPos.left = range.goalColumn;
+        goals.push(headPos.left);
+        var pos = findPosV(cm, headPos, dir, unit);
+        if (unit == "page" && range == doc.sel.primary())
+          addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
+        return pos;
+      }, sel_move);
+      if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
+        doc.sel.ranges[i].goalColumn = goals[i];
+    }),
+
+    // Find the word at the given position (as returned by coordsChar).
+    findWordAt: function(pos) {
+      var doc = this.doc, line = getLine(doc, pos.line).text;
+      var start = pos.ch, end = pos.ch;
+      if (line) {
+        var helper = this.getHelper(pos, "wordChars");
+        if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
+        var startChar = line.charAt(start);
+        var check = isWordChar(startChar, helper)
+          ? function(ch) { return isWordChar(ch, helper); }
+          : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
+          : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
+        while (start > 0 && check(line.charAt(start - 1))) --start;
+        while (end < line.length && check(line.charAt(end))) ++end;
+      }
+      return new Range(Pos(pos.line, start), Pos(pos.line, end));
+    },
+
+    toggleOverwrite: function(value) {
+      if (value != null && value == this.state.overwrite) return;
+      if (this.state.overwrite = !this.state.overwrite)
+        addClass(this.display.cursorDiv, "CodeMirror-overwrite");
+      else
+        rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
+
+      signal(this, "overwriteToggle", this, this.state.overwrite);
+    },
+    hasFocus: function() { return this.display.input.getField() == activeElt(); },
+    isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit); },
+
+    scrollTo: methodOp(function(x, y) {
+      if (x != null || y != null) resolveScrollToPos(this);
+      if (x != null) this.curOp.scrollLeft = x;
+      if (y != null) this.curOp.scrollTop = y;
+    }),
+    getScrollInfo: function() {
+      var scroller = this.display.scroller;
+      return {left: scroller.scrollLeft, top: scroller.scrollTop,
+              height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+              width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+              clientHeight: displayHeight(this), clientWidth: displayWidth(this)};
+    },
+
+    scrollIntoView: methodOp(function(range, margin) {
+      if (range == null) {
+        range = {from: this.doc.sel.primary().head, to: null};
+        if (margin == null) margin = this.options.cursorScrollMargin;
+      } else if (typeof range == "number") {
+        range = {from: Pos(range, 0), to: null};
+      } else if (range.from == null) {
+        range = {from: range, to: null};
+      }
+      if (!range.to) range.to = range.from;
+      range.margin = margin || 0;
+
+      if (range.from.line != null) {
+        resolveScrollToPos(this);
+        this.curOp.scrollToPos = range;
+      } else {
+        var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
+                                      Math.min(range.from.top, range.to.top) - range.margin,
+                                      Math.max(range.from.right, range.to.right),
+                                      Math.max(range.from.bottom, range.to.bottom) + range.margin);
+        this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+      }
+    }),
+
+    setSize: methodOp(function(width, height) {
+      var cm = this;
+      function interpret(val) {
+        return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
+      }
+      if (width != null) cm.display.wrapper.style.width = interpret(width);
+      if (height != null) cm.display.wrapper.style.height = interpret(height);
+      if (cm.options.lineWrapping) clearLineMeasurementCache(this);
+      var lineNo = cm.display.viewFrom;
+      cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
+        if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
+          if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
+        ++lineNo;
+      });
+      cm.curOp.forceUpdate = true;
+      signal(cm, "refresh", this);
+    }),
+
+    operation: function(f){return runInOp(this, f);},
+
+    refresh: methodOp(function() {
+      var oldHeight = this.display.cachedTextHeight;
+      regChange(this);
+      this.curOp.forceUpdate = true;
+      clearCaches(this);
+      this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
+      updateGutterSpace(this);
+      if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
+        estimateLineHeights(this);
+      signal(this, "refresh", this);
+    }),
+
+    swapDoc: methodOp(function(doc) {
+      var old = this.doc;
+      old.cm = null;
+      attachDoc(this, doc);
+      clearCaches(this);
+      this.display.input.reset();
+      this.scrollTo(doc.scrollLeft, doc.scrollTop);
+      this.curOp.forceScroll = true;
+      signalLater(this, "swapDoc", this, old);
+      return old;
+    }),
+
+    getInputField: function(){return this.display.input.getField();},
+    getWrapperElement: function(){return this.display.wrapper;},
+    getScrollerElement: function(){return this.display.scroller;},
+    getGutterElement: function(){return this.display.gutters;}
+  };
+  eventMixin(CodeMirror);
+
+  // OPTION DEFAULTS
+
+  // The default configuration options.
+  var defaults = CodeMirror.defaults = {};
+  // Functions to run when options are changed.
+  var optionHandlers = CodeMirror.optionHandlers = {};
+
+  function option(name, deflt, handle, notOnInit) {
+    CodeMirror.defaults[name] = deflt;
+    if (handle) optionHandlers[name] =
+      notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
+  }
+
+  // Passed to option handlers when there is no old value.
+  var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
+
+  // These two are, on init, called from the constructor because they
+  // have to be initialized before the editor can start at all.
+  option("value", "", function(cm, val) {
+    cm.setValue(val);
+  }, true);
+  option("mode", null, function(cm, val) {
+    cm.doc.modeOption = val;
+    loadMode(cm);
+  }, true);
+
+  option("indentUnit", 2, loadMode, true);
+  option("indentWithTabs", false);
+  option("smartIndent", true);
+  option("tabSize", 4, function(cm) {
+    resetModeState(cm);
+    clearCaches(cm);
+    regChange(cm);
+  }, true);
+  option("lineSeparator", null, function(cm, val) {
+    cm.doc.lineSep = val;
+    if (!val) return;
+    var newBreaks = [], lineNo = cm.doc.first;
+    cm.doc.iter(function(line) {
+      for (var pos = 0;;) {
+        var found = line.text.indexOf(val, pos);
+        if (found == -1) break;
+        pos = found + val.length;
+        newBreaks.push(Pos(lineNo, found));
+      }
+      lineNo++;
+    });
+    for (var i = newBreaks.length - 1; i >= 0; i--)
+      replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length))
+  });
+  option("specialChars", /[\u0000-\u001f\u007f\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) {
+    cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
+    if (old != CodeMirror.Init) cm.refresh();
+  });
+  option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
+  option("electricChars", true);
+  option("inputStyle", mobile ? "contenteditable" : "textarea", function() {
+    throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME
+  }, true);
+  option("rtlMoveVisually", !windows);
+  option("wholeLineUpdateBefore", true);
+
+  option("theme", "default", function(cm) {
+    themeChanged(cm);
+    guttersChanged(cm);
+  }, true);
+  option("keyMap", "default", function(cm, val, old) {
+    var next = getKeyMap(val);
+    var prev = old != CodeMirror.Init && getKeyMap(old);
+    if (prev && prev.detach) prev.detach(cm, next);
+    if (next.attach) next.attach(cm, prev || null);
+  });
+  option("extraKeys", null);
+
+  option("lineWrapping", false, wrappingChanged, true);
+  option("gutters", [], function(cm) {
+    setGuttersForLineNumbers(cm.options);
+    guttersChanged(cm);
+  }, true);
+  option("fixedGutter", true, function(cm, val) {
+    cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
+    cm.refresh();
+  }, true);
+  option("coverGutterNextToScrollbar", false, function(cm) {updateScrollbars(cm);}, true);
+  option("scrollbarStyle", "native", function(cm) {
+    initScrollbars(cm);
+    updateScrollbars(cm);
+    cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
+    cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
+  }, true);
+  option("lineNumbers", false, function(cm) {
+    setGuttersForLineNumbers(cm.options);
+    guttersChanged(cm);
+  }, true);
+  option("firstLineNumber", 1, guttersChanged, true);
+  option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
+  option("showCursorWhenSelecting", false, updateSelection, true);
+
+  option("resetSelectionOnContextMenu", true);
+  option("lineWiseCopyCut", true);
+
+  option("readOnly", false, function(cm, val) {
+    if (val == "nocursor") {
+      onBlur(cm);
+      cm.display.input.blur();
+      cm.display.disabled = true;
+    } else {
+      cm.display.disabled = false;
+    }
+    cm.display.input.readOnlyChanged(val)
+  });
+  option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true);
+  option("dragDrop", true, dragDropChanged);
+  option("allowDropFileTypes", null);
+
+  option("cursorBlinkRate", 530);
+  option("cursorScrollMargin", 0);
+  option("cursorHeight", 1, updateSelection, true);
+  option("singleCursorHeightPerLine", true, updateSelection, true);
+  option("workTime", 100);
+  option("workDelay", 100);
+  option("flattenSpans", true, resetModeState, true);
+  option("addModeClass", false, resetModeState, true);
+  option("pollInterval", 100);
+  option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
+  option("historyEventDelay", 1250);
+  option("viewportMargin", 10, function(cm){cm.refresh();}, true);
+  option("maxHighlightLength", 10000, resetModeState, true);
+  option("moveInputWithCursor", true, function(cm, val) {
+    if (!val) cm.display.input.resetPosition();
+  });
+
+  option("tabindex", null, function(cm, val) {
+    cm.display.input.getField().tabIndex = val || "";
+  });
+  option("autofocus", null);
+
+  // MODE DEFINITION AND QUERYING
+
+  // Known modes, by name and by MIME
+  var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
+
+  // Extra arguments are stored as the mode's dependencies, which is
+  // used by (legacy) mechanisms like loadmode.js to automatically
+  // load a mode. (Preferred mechanism is the require/define calls.)
+  CodeMirror.defineMode = function(name, mode) {
+    if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
+    if (arguments.length > 2)
+      mode.dependencies = Array.prototype.slice.call(arguments, 2);
+    modes[name] = mode;
+  };
+
+  CodeMirror.defineMIME = function(mime, spec) {
+    mimeModes[mime] = spec;
+  };
+
+  // Given a MIME type, a {name, ...options} config object, or a name
+  // string, return a mode config object.
+  CodeMirror.resolveMode = function(spec) {
+    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+      spec = mimeModes[spec];
+    } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+      var found = mimeModes[spec.name];
+      if (typeof found == "string") found = {name: found};
+      spec = createObj(found, spec);
+      spec.name = found.name;
+    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+      return CodeMirror.resolveMode("application/xml");
+    }
+    if (typeof spec == "string") return {name: spec};
+    else return spec || {name: "null"};
+  };
+
+  // Given a mode spec (anything that resolveMode accepts), find and
+  // initialize an actual mode object.
+  CodeMirror.getMode = function(options, spec) {
+    var spec = CodeMirror.resolveMode(spec);
+    var mfactory = modes[spec.name];
+    if (!mfactory) return CodeMirror.getMode(options, "text/plain");
+    var modeObj = mfactory(options, spec);
+    if (modeExtensions.hasOwnProperty(spec.name)) {
+      var exts = modeExtensions[spec.name];
+      for (var prop in exts) {
+        if (!exts.hasOwnProperty(prop)) continue;
+        if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
+        modeObj[prop] = exts[prop];
+      }
+    }
+    modeObj.name = spec.name;
+    if (spec.helperType) modeObj.helperType = spec.helperType;
+    if (spec.modeProps) for (var prop in spec.modeProps)
+      modeObj[prop] = spec.modeProps[prop];
+
+    return modeObj;
+  };
+
+  // Minimal default mode.
+  CodeMirror.defineMode("null", function() {
+    return {token: function(stream) {stream.skipToEnd();}};
+  });
+  CodeMirror.defineMIME("text/plain", "null");
+
+  // This can be used to attach properties to mode objects from
+  // outside the actual mode definition.
+  var modeExtensions = CodeMirror.modeExtensions = {};
+  CodeMirror.extendMode = function(mode, properties) {
+    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
+    copyObj(properties, exts);
+  };
+
+  // EXTENSIONS
+
+  CodeMirror.defineExtension = function(name, func) {
+    CodeMirror.prototype[name] = func;
+  };
+  CodeMirror.defineDocExtension = function(name, func) {
+    Doc.prototype[name] = func;
+  };
+  CodeMirror.defineOption = option;
+
+  var initHooks = [];
+  CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
+
+  var helpers = CodeMirror.helpers = {};
+  CodeMirror.registerHelper = function(type, name, value) {
+    if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
+    helpers[type][name] = value;
+  };
+  CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+    CodeMirror.registerHelper(type, name, value);
+    helpers[type]._global.push({pred: predicate, val: value});
+  };
+
+  // MODE STATE HANDLING
+
+  // Utility functions for working with state. Exported because nested
+  // modes need to do this for their inner modes.
+
+  var copyState = CodeMirror.copyState = function(mode, state) {
+    if (state === true) return state;
+    if (mode.copyState) return mode.copyState(state);
+    var nstate = {};
+    for (var n in state) {
+      var val = state[n];
+      if (val instanceof Array) val = val.concat([]);
+      nstate[n] = val;
+    }
+    return nstate;
+  };
+
+  var startState = CodeMirror.startState = function(mode, a1, a2) {
+    return mode.startState ? mode.startState(a1, a2) : true;
+  };
+
+  // Given a mode and a state (for that mode), find the inner mode and
+  // state at the position that the state refers to.
+  CodeMirror.innerMode = function(mode, state) {
+    while (mode.innerMode) {
+      var info = mode.innerMode(state);
+      if (!info || info.mode == mode) break;
+      state = info.state;
+      mode = info.mode;
+    }
+    return info || {mode: mode, state: state};
+  };
+
+  // STANDARD COMMANDS
+
+  // Commands are parameter-less actions that can be performed on an
+  // editor, mostly used for keybindings.
+  var commands = CodeMirror.commands = {
+    selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
+    singleSelection: function(cm) {
+      cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
+    },
+    killLine: function(cm) {
+      deleteNearSelection(cm, function(range) {
+        if (range.empty()) {
+          var len = getLine(cm.doc, range.head.line).text.length;
+          if (range.head.ch == len && range.head.line < cm.lastLine())
+            return {from: range.head, to: Pos(range.head.line + 1, 0)};
+          else
+            return {from: range.head, to: Pos(range.head.line, len)};
+        } else {
+          return {from: range.from(), to: range.to()};
+        }
+      });
+    },
+    deleteLine: function(cm) {
+      deleteNearSelection(cm, function(range) {
+        return {from: Pos(range.from().line, 0),
+                to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
+      });
+    },
+    delLineLeft: function(cm) {
+      deleteNearSelection(cm, function(range) {
+        return {from: Pos(range.from().line, 0), to: range.from()};
+      });
+    },
+    delWrappedLineLeft: function(cm) {
+      deleteNearSelection(cm, function(range) {
+        var top = cm.charCoords(range.head, "div").top + 5;
+        var leftPos = cm.coordsChar({left: 0, top: top}, "div");
+        return {from: leftPos, to: range.from()};
+      });
+    },
+    delWrappedLineRight: function(cm) {
+      deleteNearSelection(cm, function(range) {
+        var top = cm.charCoords(range.head, "div").top + 5;
+        var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+        return {from: range.from(), to: rightPos };
+      });
+    },
+    undo: function(cm) {cm.undo();},
+    redo: function(cm) {cm.redo();},
+    undoSelection: function(cm) {cm.undoSelection();},
+    redoSelection: function(cm) {cm.redoSelection();},
+    goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
+    goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
+    goLineStart: function(cm) {
+      cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
+                            {origin: "+move", bias: 1});
+    },
+    goLineStartSmart: function(cm) {
+      cm.extendSelectionsBy(function(range) {
+        return lineStartSmart(cm, range.head);
+      }, {origin: "+move", bias: 1});
+    },
+    goLineEnd: function(cm) {
+      cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
+                            {origin: "+move", bias: -1});
+    },
+    goLineRight: function(cm) {
+      cm.extendSelectionsBy(function(range) {
+        var top = cm.charCoords(range.head, "div").top + 5;
+        return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+      }, sel_move);
+    },
+    goLineLeft: function(cm) {
+      cm.extendSelectionsBy(function(range) {
+        var top = cm.charCoords(range.head, "div").top + 5;
+        return cm.coordsChar({left: 0, top: top}, "div");
+      }, sel_move);
+    },
+    goLineLeftSmart: function(cm) {
+      cm.extendSelectionsBy(function(range) {
+        var top = cm.charCoords(range.head, "div").top + 5;
+        var pos = cm.coordsChar({left: 0, top: top}, "div");
+        if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
+        return pos;
+      }, sel_move);
+    },
+    goLineUp: function(cm) {cm.moveV(-1, "line");},
+    goLineDown: function(cm) {cm.moveV(1, "line");},
+    goPageUp: function(cm) {cm.moveV(-1, "page");},
+    goPageDown: function(cm) {cm.moveV(1, "page");},
+    goCharLeft: function(cm) {cm.moveH(-1, "char");},
+    goCharRight: function(cm) {cm.moveH(1, "char");},
+    goColumnLeft: function(cm) {cm.moveH(-1, "column");},
+    goColumnRight: function(cm) {cm.moveH(1, "column");},
+    goWordLeft: function(cm) {cm.moveH(-1, "word");},
+    goGroupRight: function(cm) {cm.moveH(1, "group");},
+    goGroupLeft: function(cm) {cm.moveH(-1, "group");},
+    goWordRight: function(cm) {cm.moveH(1, "word");},
+    delCharBefore: function(cm) {cm.deleteH(-1, "char");},
+    delCharAfter: function(cm) {cm.deleteH(1, "char");},
+    delWordBefore: function(cm) {cm.deleteH(-1, "word");},
+    delWordAfter: function(cm) {cm.deleteH(1, "word");},
+    delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
+    delGroupAfter: function(cm) {cm.deleteH(1, "group");},
+    indentAuto: function(cm) {cm.indentSelection("smart");},
+    indentMore: function(cm) {cm.indentSelection("add");},
+    indentLess: function(cm) {cm.indentSelection("subtract");},
+    insertTab: function(cm) {cm.replaceSelection("\t");},
+    insertSoftTab: function(cm) {
+      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
+      for (var i = 0; i < ranges.length; i++) {
+        var pos = ranges[i].from();
+        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
+        spaces.push(spaceStr(tabSize - col % tabSize));
+      }
+      cm.replaceSelections(spaces);
+    },
+    defaultTab: function(cm) {
+      if (cm.somethingSelected()) cm.indentSelection("add");
+      else cm.execCommand("insertTab");
+    },
+    transposeChars: function(cm) {
+      runInOp(cm, function() {
+        var ranges = cm.listSelections(), newSel = [];
+        for (var i = 0; i < ranges.length; i++) {
+          var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
+          if (line) {
+            if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
+            if (cur.ch > 0) {
+              cur = new Pos(cur.line, cur.ch + 1);
+              cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+                              Pos(cur.line, cur.ch - 2), cur, "+transpose");
+            } else if (cur.line > cm.doc.first) {
+              var prev = getLine(cm.doc, cur.line - 1).text;
+              if (prev)
+                cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+                                prev.charAt(prev.length - 1),
+                                Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
+            }
+          }
+          newSel.push(new Range(cur, cur));
+        }
+        cm.setSelections(newSel);
+      });
+    },
+    newlineAndIndent: function(cm) {
+      runInOp(cm, function() {
+        var len = cm.listSelections().length;
+        for (var i = 0; i < len; i++) {
+          var range = cm.listSelections()[i];
+          cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input");
+          cm.indentLine(range.from().line + 1, null, true);
+        }
+        ensureCursorVisible(cm);
+      });
+    },
+    openLine: function(cm) {cm.replaceSelection("\n", "start")},
+    toggleOverwrite: function(cm) {cm.toggleOverwrite();}
+  };
+
+
+  // STANDARD KEYMAPS
+
+  var keyMap = CodeMirror.keyMap = {};
+
+  keyMap.basic = {
+    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+    "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+    "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+    "Esc": "singleSelection"
+  };
+  // Note that the save and find-related commands aren't defined by
+  // default. User code or addons can define them. Unknown commands
+  // are simply ignored.
+  keyMap.pcDefault = {
+    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+    "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+    "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+    "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+    "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+    fallthrough: "basic"
+  };
+  // Very basic readline/emacs-style bindings, which are standard on Mac.
+  keyMap.emacsy = {
+    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+    "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+    "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+    "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
+    "Ctrl-O": "openLine"
+  };
+  keyMap.macDefault = {
+    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+    "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+    "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+    "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+    "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+    "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+    fallthrough: ["basic", "emacsy"]
+  };
+  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+
+  // KEYMAP DISPATCH
+
+  function normalizeKeyName(name) {
+    var parts = name.split(/-(?!$)/), name = parts[parts.length - 1];
+    var alt, ctrl, shift, cmd;
+    for (var i = 0; i < parts.length - 1; i++) {
+      var mod = parts[i];
+      if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;
+      else if (/^a(lt)?$/i.test(mod)) alt = true;
+      else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;
+      else if (/^s(hift)$/i.test(mod)) shift = true;
+      else throw new Error("Unrecognized modifier name: " + mod);
+    }
+    if (alt) name = "Alt-" + name;
+    if (ctrl) name = "Ctrl-" + name;
+    if (cmd) name = "Cmd-" + name;
+    if (shift) name = "Shift-" + name;
+    return name;
+  }
+
+  // This is a kludge to keep keymaps mostly working as raw objects
+  // (backwards compatibility) while at the same time support features
+  // like normalization and multi-stroke key bindings. It compiles a
+  // new normalized keymap, and then updates the old object to reflect
+  // this.
+  CodeMirror.normalizeKeyMap = function(keymap) {
+    var copy = {};
+    for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
+      var value = keymap[keyname];
+      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;
+      if (value == "...") { delete keymap[keyname]; continue; }
+
+      var keys = map(keyname.split(" "), normalizeKeyName);
+      for (var i = 0; i < keys.length; i++) {
+        var val, name;
+        if (i == keys.length - 1) {
+          name = keys.join(" ");
+          val = value;
+        } else {
+          name = keys.slice(0, i + 1).join(" ");
+          val = "...";
+        }
+        var prev = copy[name];
+        if (!prev) copy[name] = val;
+        else if (prev != val) throw new Error("Inconsistent bindings for " + name);
+      }
+      delete keymap[keyname];
+    }
+    for (var prop in copy) keymap[prop] = copy[prop];
+    return keymap;
+  };
+
+  var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) {
+    map = getKeyMap(map);
+    var found = map.call ? map.call(key, context) : map[key];
+    if (found === false) return "nothing";
+    if (found === "...") return "multi";
+    if (found != null && handle(found)) return "handled";
+
+    if (map.fallthrough) {
+      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+        return lookupKey(key, map.fallthrough, handle, context);
+      for (var i = 0; i < map.fallthrough.length; i++) {
+        var result = lookupKey(key, map.fallthrough[i], handle, context);
+        if (result) return result;
+      }
+    }
+  };
+
+  // Modifier key presses don't count as 'real' key presses for the
+  // purpose of keymap fallthrough.
+  var isModifierKey = CodeMirror.isModifierKey = function(value) {
+    var name = typeof value == "string" ? value : keyNames[value.keyCode];
+    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
+  };
+
+  // Look up the name of a key as indicated by an event object.
+  var keyName = CodeMirror.keyName = function(event, noShift) {
+    if (presto && event.keyCode == 34 && event["char"]) return false;
+    var base = keyNames[event.keyCode], name = base;
+    if (name == null || event.altGraphKey) return false;
+    if (event.altKey && base != "Alt") name = "Alt-" + name;
+    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name;
+    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name;
+    if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name;
+    return name;
+  };
+
+  function getKeyMap(val) {
+    return typeof val == "string" ? keyMap[val] : val;
+  }
+
+  // FROMTEXTAREA
+
+  CodeMirror.fromTextArea = function(textarea, options) {
+    options = options ? copyObj(options) : {};
+    options.value = textarea.value;
+    if (!options.tabindex && textarea.tabIndex)
+      options.tabindex = textarea.tabIndex;
+    if (!options.placeholder && textarea.placeholder)
+      options.placeholder = textarea.placeholder;
+    // Set autofocus to true if this textarea is focused, or if it has
+    // autofocus and no other element is focused.
+    if (options.autofocus == null) {
+      var hasFocus = activeElt();
+      options.autofocus = hasFocus == textarea ||
+        textarea.getAttribute("autofocus") != null && hasFocus == document.body;
+    }
+
+    function save() {textarea.value = cm.getValue();}
+    if (textarea.form) {
+      on(textarea.form, "submit", save);
+      // Deplorable hack to make the submit method do the right thing.
+      if (!options.leaveSubmitMethodAlone) {
+        var form = textarea.form, realSubmit = form.submit;
+        try {
+          var wrappedSubmit = form.submit = function() {
+            save();
+            form.submit = realSubmit;
+            form.submit();
+            form.submit = wrappedSubmit;
+          };
+        } catch(e) {}
+      }
+    }
+
+    options.finishInit = function(cm) {
+      cm.save = save;
+      cm.getTextArea = function() { return textarea; };
+      cm.toTextArea = function() {
+        cm.toTextArea = isNaN; // Prevent this from being ran twice
+        save();
+        textarea.parentNode.removeChild(cm.getWrapperElement());
+        textarea.style.display = "";
+        if (textarea.form) {
+          off(textarea.form, "submit", save);
+          if (typeof textarea.form.submit == "function")
+            textarea.form.submit = realSubmit;
+        }
+      };
+    };
+
+    textarea.style.display = "none";
+    var cm = CodeMirror(function(node) {
+      textarea.parentNode.insertBefore(node, textarea.nextSibling);
+    }, options);
+    return cm;
+  };
+
+  // STRING STREAM
+
+  // Fed to the mode parsers, provides helper functions to make
+  // parsers more succinct.
+
+  var StringStream = CodeMirror.StringStream = function(string, tabSize) {
+    this.pos = this.start = 0;
+    this.string = string;
+    this.tabSize = tabSize || 8;
+    this.lastColumnPos = this.lastColumnValue = 0;
+    this.lineStart = 0;
+  };
+
+  StringStream.prototype = {
+    eol: function() {return this.pos >= this.string.length;},
+    sol: function() {return this.pos == this.lineStart;},
+    peek: function() {return this.string.charAt(this.pos) || undefined;},
+    next: function() {
+      if (this.pos < this.string.length)
+        return this.string.charAt(this.pos++);
+    },
+    eat: function(match) {
+      var ch = this.string.charAt(this.pos);
+      if (typeof match == "string") var ok = ch == match;
+      else var ok = ch && (match.test ? match.test(ch) : match(ch));
+      if (ok) {++this.pos; return ch;}
+    },
+    eatWhile: function(match) {
+      var start = this.pos;
+      while (this.eat(match)){}
+      return this.pos > start;
+    },
+    eatSpace: function() {
+      var start = this.pos;
+      while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
+      return this.pos > start;
+    },
+    skipToEnd: function() {this.pos = this.string.length;},
+    skipTo: function(ch) {
+      var found = this.string.indexOf(ch, this.pos);
+      if (found > -1) {this.pos = found; return true;}
+    },
+    backUp: function(n) {this.pos -= n;},
+    column: function() {
+      if (this.lastColumnPos < this.start) {
+        this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
+        this.lastColumnPos = this.start;
+      }
+      return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
+    },
+    indentation: function() {
+      return countColumn(this.string, null, this.tabSize) -
+        (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
+    },
+    match: function(pattern, consume, caseInsensitive) {
+      if (typeof pattern == "string") {
+        var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
+        var substr = this.string.substr(this.pos, pattern.length);
+        if (cased(substr) == cased(pattern)) {
+          if (consume !== false) this.pos += pattern.length;
+          return true;
+        }
+      } else {
+        var match = this.string.slice(this.pos).match(pattern);
+        if (match && match.index > 0) return null;
+        if (match && consume !== false) this.pos += match[0].length;
+        return match;
+      }
+    },
+    current: function(){return this.string.slice(this.start, this.pos);},
+    hideFirstChars: function(n, inner) {
+      this.lineStart += n;
+      try { return inner(); }
+      finally { this.lineStart -= n; }
+    }
+  };
+
+  // TEXTMARKERS
+
+  // Created with markText and setBookmark methods. A TextMarker is a
+  // handle that can be used to clear or find a marked position in the
+  // document. Line objects hold arrays (markedSpans) containing
+  // {from, to, marker} object pointing to such marker objects, and
+  // indicating that such a marker is present on that line. Multiple
+  // lines may point to the same marker when it spans across lines.
+  // The spans will have null for their from/to properties when the
+  // marker continues beyond the start/end of the line. Markers have
+  // links back to the lines they currently touch.
+
+  var nextMarkerId = 0;
+
+  var TextMarker = CodeMirror.TextMarker = function(doc, type) {
+    this.lines = [];
+    this.type = type;
+    this.doc = doc;
+    this.id = ++nextMarkerId;
+  };
+  eventMixin(TextMarker);
+
+  // Clear the marker.
+  TextMarker.prototype.clear = function() {
+    if (this.explicitlyCleared) return;
+    var cm = this.doc.cm, withOp = cm && !cm.curOp;
+    if (withOp) startOperation(cm);
+    if (hasHandler(this, "clear")) {
+      var found = this.find();
+      if (found) signalLater(this, "clear", found.from, found.to);
+    }
+    var min = null, max = null;
+    for (var i = 0; i < this.lines.length; ++i) {
+      var line = this.lines[i];
+      var span = getMarkedSpanFor(line.markedSpans, this);
+      if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
+      else if (cm) {
+        if (span.to != null) max = lineNo(line);
+        if (span.from != null) min = lineNo(line);
+      }
+      line.markedSpans = removeMarkedSpan(line.markedSpans, span);
+      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
+        updateLineHeight(line, textHeight(cm.display));
+    }
+    if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
+      var visual = visualLine(this.lines[i]), len = lineLength(visual);
+      if (len > cm.display.maxLineLength) {
+        cm.display.maxLine = visual;
+        cm.display.maxLineLength = len;
+        cm.display.maxLineChanged = true;
+      }
+    }
+
+    if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
+    this.lines.length = 0;
+    this.explicitlyCleared = true;
+    if (this.atomic && this.doc.cantEdit) {
+      this.doc.cantEdit = false;
+      if (cm) reCheckSelection(cm.doc);
+    }
+    if (cm) signalLater(cm, "markerCleared", cm, this);
+    if (withOp) endOperation(cm);
+    if (this.parent) this.parent.clear();
+  };
+
+  // Find the position of the marker in the document. Returns a {from,
+  // to} object by default. Side can be passed to get a specific side
+  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+  // Pos objects returned contain a line object, rather than a line
+  // number (used to prevent looking up the same line twice).
+  TextMarker.prototype.find = function(side, lineObj) {
+    if (side == null && this.type == "bookmark") side = 1;
+    var from, to;
+    for (var i = 0; i < this.lines.length; ++i) {
+      var line = this.lines[i];
+      var span = getMarkedSpanFor(line.markedSpans, this);
+      if (span.from != null) {
+        from = Pos(lineObj ? line : lineNo(line), span.from);
+        if (side == -1) return from;
+      }
+      if (span.to != null) {
+        to = Pos(lineObj ? line : lineNo(line), span.to);
+        if (side == 1) return to;
+      }
+    }
+    return from && {from: from, to: to};
+  };
+
+  // Signals that the marker's widget changed, and surrounding layout
+  // should be recomputed.
+  TextMarker.prototype.changed = function() {
+    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
+    if (!pos || !cm) return;
+    runInOp(cm, function() {
+      var line = pos.line, lineN = lineNo(pos.line);
+      var view = findViewForLine(cm, lineN);
+      if (view) {
+        clearLineMeasurementCacheFor(view);
+        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
+      }
+      cm.curOp.updateMaxLine = true;
+      if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+        var oldHeight = widget.height;
+        widget.height = null;
+        var dHeight = widgetHeight(widget) - oldHeight;
+        if (dHeight)
+          updateLineHeight(line, line.height + dHeight);
+      }
+    });
+  };
+
+  TextMarker.prototype.attachLine = function(line) {
+    if (!this.lines.length && this.doc.cm) {
+      var op = this.doc.cm.curOp;
+      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+        (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
+    }
+    this.lines.push(line);
+  };
+  TextMarker.prototype.detachLine = function(line) {
+    this.lines.splice(indexOf(this.lines, line), 1);
+    if (!this.lines.length && this.doc.cm) {
+      var op = this.doc.cm.curOp;
+      (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
+    }
+  };
+
+  // Collapsed markers have unique ids, in order to be able to order
+  // them, which is needed for uniquely determining an outer marker
+  // when they overlap (they may nest, but not partially overlap).
+  var nextMarkerId = 0;
+
+  // Create a marker, wire it up to the right lines, and
+  function markText(doc, from, to, options, type) {
+    // Shared markers (across linked documents) are handled separately
+    // (markTextShared will call out to this again, once per
+    // document).
+    if (options && options.shared) return markTextShared(doc, from, to, options, type);
+    // Ensure we are in an operation.
+    if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
+
+    var marker = new TextMarker(doc, type), diff = cmp(from, to);
+    if (options) copyObj(options, marker, false);
+    // Don't connect empty markers unless clearWhenEmpty is false
+    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+      return marker;
+    if (marker.replacedWith) {
+      // Showing up as a widget implies collapsed (widget replaces text)
+      marker.collapsed = true;
+      marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
+      if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true");
+      if (options.insertLeft) marker.widgetNode.insertLeft = true;
+    }
+    if (marker.collapsed) {
+      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+        throw new Error("Inserting collapsed marker partially overlapping an existing one");
+      sawCollapsedSpans = true;
+    }
+
+    if (marker.addToHistory)
+      addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);
+
+    var curLine = from.line, cm = doc.cm, updateMaxLine;
+    doc.iter(curLine, to.line + 1, function(line) {
+      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+        updateMaxLine = true;
+      if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
+      addMarkedSpan(line, new MarkedSpan(marker,
+                                         curLine == from.line ? from.ch : null,
+                                         curLine == to.line ? to.ch : null));
+      ++curLine;
+    });
+    // lineIsHidden depends on the presence of the spans, so needs a second pass
+    if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
+      if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
+    });
+
+    if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
+
+    if (marker.readOnly) {
+      sawReadOnlySpans = true;
+      if (doc.history.done.length || doc.history.undone.length)
+        doc.clearHistory();
+    }
+    if (marker.collapsed) {
+      marker.id = ++nextMarkerId;
+      marker.atomic = true;
+    }
+    if (cm) {
+      // Sync editor state
+      if (updateMaxLine) cm.curOp.updateMaxLine = true;
+      if (marker.collapsed)
+        regChange(cm, from.line, to.line + 1);
+      else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
+        for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
+      if (marker.atomic) reCheckSelection(cm.doc);
+      signalLater(cm, "markerAdded", cm, marker);
+    }
+    return marker;
+  }
+
+  // SHARED TEXTMARKERS
+
+  // A shared marker spans multiple linked documents. It is
+  // implemented as a meta-marker-object controlling multiple normal
+  // markers.
+  var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
+    this.markers = markers;
+    this.primary = primary;
+    for (var i = 0; i < markers.length; ++i)
+      markers[i].parent = this;
+  };
+  eventMixin(SharedTextMarker);
+
+  SharedTextMarker.prototype.clear = function() {
+    if (this.explicitlyCleared) return;
+    this.explicitlyCleared = true;
+    for (var i = 0; i < this.markers.length; ++i)
+      this.markers[i].clear();
+    signalLater(this, "clear");
+  };
+  SharedTextMarker.prototype.find = function(side, lineObj) {
+    return this.primary.find(side, lineObj);
+  };
+
+  function markTextShared(doc, from, to, options, type) {
+    options = copyObj(options);
+    options.shared = false;
+    var markers = [markText(doc, from, to, options, type)], primary = markers[0];
+    var widget = options.widgetNode;
+    linkedDocs(doc, function(doc) {
+      if (widget) options.widgetNode = widget.cloneNode(true);
+      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
+      for (var i = 0; i < doc.linked.length; ++i)
+        if (doc.linked[i].isParent) return;
+      primary = lst(markers);
+    });
+    return new SharedTextMarker(markers, primary);
+  }
+
+  function findSharedMarkers(doc) {
+    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
+                         function(m) { return m.parent; });
+  }
+
+  function copySharedMarkers(doc, markers) {
+    for (var i = 0; i < markers.length; i++) {
+      var marker = markers[i], pos = marker.find();
+      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
+      if (cmp(mFrom, mTo)) {
+        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
+        marker.markers.push(subMark);
+        subMark.parent = marker;
+      }
+    }
+  }
+
+  function detachSharedMarkers(markers) {
+    for (var i = 0; i < markers.length; i++) {
+      var marker = markers[i], linked = [marker.primary.doc];;
+      linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
+      for (var j = 0; j < marker.markers.length; j++) {
+        var subMarker = marker.markers[j];
+        if (indexOf(linked, subMarker.doc) == -1) {
+          subMarker.parent = null;
+          marker.markers.splice(j--, 1);
+        }
+      }
+    }
+  }
+
+  // TEXTMARKER SPANS
+
+  function MarkedSpan(marker, from, to) {
+    this.marker = marker;
+    this.from = from; this.to = to;
+  }
+
+  // Search an array of spans for a span matching the given marker.
+  function getMarkedSpanFor(spans, marker) {
+    if (spans) for (var i = 0; i < spans.length; ++i) {
+      var span = spans[i];
+      if (span.marker == marker) return span;
+    }
+  }
+  // Remove a span from an array, returning undefined if no spans are
+  // left (we don't store arrays for lines without spans).
+  function removeMarkedSpan(spans, span) {
+    for (var r, i = 0; i < spans.length; ++i)
+      if (spans[i] != span) (r || (r = [])).push(spans[i]);
+    return r;
+  }
+  // Add a span to a line.
+  function addMarkedSpan(line, span) {
+    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
+    span.marker.attachLine(line);
+  }
+
+  // Used for the algorithm that adjusts markers for a change in the
+  // document. These functions cut an array of spans at a given
+  // character position, returning an array of remaining chunks (or
+  // undefined if nothing remains).
+  function markedSpansBefore(old, startCh, isInsert) {
+    if (old) for (var i = 0, nw; i < old.length; ++i) {
+      var span = old[i], marker = span.marker;
+      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
+      if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
+        (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
+      }
+    }
+    return nw;
+  }
+  function markedSpansAfter(old, endCh, isInsert) {
+    if (old) for (var i = 0, nw; i < old.length; ++i) {
+      var span = old[i], marker = span.marker;
+      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
+      if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
+        (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+                                              span.to == null ? null : span.to - endCh));
+      }
+    }
+    return nw;
+  }
+
+  // Given a change object, compute the new set of marker spans that
+  // cover the line in which the change took place. Removes spans
+  // entirely within the change, reconnects spans belonging to the
+  // same marker that appear on both sides of the change, and cuts off
+  // spans partially within the change. Returns an array of span
+  // arrays with one element for each line in (after) the change.
+  function stretchSpansOverChange(doc, change) {
+    if (change.full) return null;
+    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
+    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
+    if (!oldFirst && !oldLast) return null;
+
+    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
+    // Get the spans that 'stick out' on both sides
+    var first = markedSpansBefore(oldFirst, startCh, isInsert);
+    var last = markedSpansAfter(oldLast, endCh, isInsert);
+
+    // Next, merge those two ends
+    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
+    if (first) {
+      // Fix up .to properties of first
+      for (var i = 0; i < first.length; ++i) {
+        var span = first[i];
+        if (span.to == null) {
+          var found = getMarkedSpanFor(last, span.marker);
+          if (!found) span.to = startCh;
+          else if (sameLine) span.to = found.to == null ? null : found.to + offset;
+        }
+      }
+    }
+    if (last) {
+      // Fix up .from in last (or move them into first in case of sameLine)
+      for (var i = 0; i < last.length; ++i) {
+        var span = last[i];
+        if (span.to != null) span.to += offset;
+        if (span.from == null) {
+          var found = getMarkedSpanFor(first, span.marker);
+          if (!found) {
+            span.from = offset;
+            if (sameLine) (first || (first = [])).push(span);
+          }
+        } else {
+          span.from += offset;
+          if (sameLine) (first || (first = [])).push(span);
+        }
+      }
+    }
+    // Make sure we didn't create any zero-length spans
+    if (first) first = clearEmptySpans(first);
+    if (last && last != first) last = clearEmptySpans(last);
+
+    var newMarkers = [first];
+    if (!sameLine) {
+      // Fill gap with whole-line-spans
+      var gap = change.text.length - 2, gapMarkers;
+      if (gap > 0 && first)
+        for (var i = 0; i < first.length; ++i)
+          if (first[i].to == null)
+            (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
+      for (var i = 0; i < gap; ++i)
+        newMarkers.push(gapMarkers);
+      newMarkers.push(last);
+    }
+    return newMarkers;
+  }
+
+  // Remove spans that are empty and don't have a clearWhenEmpty
+  // option of false.
+  function clearEmptySpans(spans) {
+    for (var i = 0; i < spans.length; ++i) {
+      var span = spans[i];
+      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+        spans.splice(i--, 1);
+    }
+    if (!spans.length) return null;
+    return spans;
+  }
+
+  // Used for un/re-doing changes from the history. Combines the
+  // result of computing the existing spans with the set of spans that
+  // existed in the history (so that deleting around a span and then
+  // undoing brings back the span).
+  function mergeOldSpans(doc, change) {
+    var old = getOldSpans(doc, change);
+    var stretched = stretchSpansOverChange(doc, change);
+    if (!old) return stretched;
+    if (!stretched) return old;
+
+    for (var i = 0; i < old.length; ++i) {
+      var oldCur = old[i], stretchCur = stretched[i];
+      if (oldCur && stretchCur) {
+        spans: for (var j = 0; j < stretchCur.length; ++j) {
+          var span = stretchCur[j];
+          for (var k = 0; k < oldCur.length; ++k)
+            if (oldCur[k].marker == span.marker) continue spans;
+          oldCur.push(span);
+        }
+      } else if (stretchCur) {
+        old[i] = stretchCur;
+      }
+    }
+    return old;
+  }
+
+  // Used to 'clip' out readOnly ranges when making a change.
+  function removeReadOnlyRanges(doc, from, to) {
+    var markers = null;
+    doc.iter(from.line, to.line + 1, function(line) {
+      if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
+        var mark = line.markedSpans[i].marker;
+        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+          (markers || (markers = [])).push(mark);
+      }
+    });
+    if (!markers) return null;
+    var parts = [{from: from, to: to}];
+    for (var i = 0; i < markers.length; ++i) {
+      var mk = markers[i], m = mk.find(0);
+      for (var j = 0; j < parts.length; ++j) {
+        var p = parts[j];
+        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
+        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
+        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+          newParts.push({from: p.from, to: m.from});
+        if (dto > 0 || !mk.inclusiveRight && !dto)
+          newParts.push({from: m.to, to: p.to});
+        parts.splice.apply(parts, newParts);
+        j += newParts.length - 1;
+      }
+    }
+    return parts;
+  }
+
+  // Connect or disconnect spans from a line.
+  function detachMarkedSpans(line) {
+    var spans = line.markedSpans;
+    if (!spans) return;
+    for (var i = 0; i < spans.length; ++i)
+      spans[i].marker.detachLine(line);
+    line.markedSpans = null;
+  }
+  function attachMarkedSpans(line, spans) {
+    if (!spans) return;
+    for (var i = 0; i < spans.length; ++i)
+      spans[i].marker.attachLine(line);
+    line.markedSpans = spans;
+  }
+
+  // Helpers used when computing which overlapping collapsed span
+  // counts as the larger one.
+  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
+  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }
+
+  // Returns a number indicating which of two overlapping collapsed
+  // spans is larger (and thus includes the other). Falls back to
+  // comparing ids when the spans cover exactly the same range.
+  function compareCollapsedMarkers(a, b) {
+    var lenDiff = a.lines.length - b.lines.length;
+    if (lenDiff != 0) return lenDiff;
+    var aPos = a.find(), bPos = b.find();
+    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
+    if (fromCmp) return -fromCmp;
+    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
+    if (toCmp) return toCmp;
+    return b.id - a.id;
+  }
+
+  // Find out whether a line ends or starts in a collapsed span. If
+  // so, return the marker for that span.
+  function collapsedSpanAtSide(line, start) {
+    var sps = sawCollapsedSpans && line.markedSpans, found;
+    if (sps) for (var sp, i = 0; i < sps.length; ++i) {
+      sp = sps[i];
+      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+          (!found || compareCollapsedMarkers(found, sp.marker) < 0))
+        found = sp.marker;
+    }
+    return found;
+  }
+  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
+  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }
+
+  // Test whether there exists a collapsed span that partially
+  // overlaps (covers the start or end, but not both) of a new span.
+  // Such overlap is not allowed.
+  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+    var line = getLine(doc, lineNo);
+    var sps = sawCollapsedSpans && line.markedSpans;
+    if (sps) for (var i = 0; i < sps.length; ++i) {
+      var sp = sps[i];
+      if (!sp.marker.collapsed) continue;
+      var found = sp.marker.find(0);
+      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
+      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
+      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
+      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
+          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
+        return true;
+    }
+  }
+
+  // A visual line is a line as drawn on the screen. Folding, for
+  // example, can cause multiple logical lines to appear on the same
+  // visual line. This finds the start of the visual line that the
+  // given line is part of (usually that is the line itself).
+  function visualLine(line) {
+    var merged;
+    while (merged = collapsedSpanAtStart(line))
+      line = merged.find(-1, true).line;
+    return line;
+  }
+
+  // Returns an array of logical lines that continue the visual line
+  // started by the argument, or undefined if there are no such lines.
+  function visualLineContinued(line) {
+    var merged, lines;
+    while (merged = collapsedSpanAtEnd(line)) {
+      line = merged.find(1, true).line;
+      (lines || (lines = [])).push(line);
+    }
+    return lines;
+  }
+
+  // Get the line number of the start of the visual line that the
+  // given line number is part of.
+  function visualLineNo(doc, lineN) {
+    var line = getLine(doc, lineN), vis = visualLine(line);
+    if (line == vis) return lineN;
+    return lineNo(vis);
+  }
+  // Get the line number of the start of the next visual line after
+  // the given line.
+  function visualLineEndNo(doc, lineN) {
+    if (lineN > doc.lastLine()) return lineN;
+    var line = getLine(doc, lineN), merged;
+    if (!lineIsHidden(doc, line)) return lineN;
+    while (merged = collapsedSpanAtEnd(line))
+      line = merged.find(1, true).line;
+    return lineNo(line) + 1;
+  }
+
+  // Compute whether a line is hidden. Lines count as hidden when they
+  // are part of a visual line that starts with another line, or when
+  // they are entirely covered by collapsed, non-widget span.
+  function lineIsHidden(doc, line) {
+    var sps = sawCollapsedSpans && line.markedSpans;
+    if (sps) for (var sp, i = 0; i < sps.length; ++i) {
+      sp = sps[i];
+      if (!sp.marker.collapsed) continue;
+      if (sp.from == null) return true;
+      if (sp.marker.widgetNode) continue;
+      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+        return true;
+    }
+  }
+  function lineIsHiddenInner(doc, line, span) {
+    if (span.to == null) {
+      var end = span.marker.find(1, true);
+      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
+    }
+    if (span.marker.inclusiveRight && span.to == line.text.length)
+      return true;
+    for (var sp, i = 0; i < line.markedSpans.length; ++i) {
+      sp = line.markedSpans[i];
+      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+          (sp.to == null || sp.to != span.from) &&
+          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+          lineIsHiddenInner(doc, line, sp)) return true;
+    }
+  }
+
+  // LINE WIDGETS
+
+  // Line widgets are block elements displayed above or below a line.
+
+  var LineWidget = CodeMirror.LineWidget = function(doc, node, options) {
+    if (options) for (var opt in options) if (options.hasOwnProperty(opt))
+      this[opt] = options[opt];
+    this.doc = doc;
+    this.node = node;
+  };
+  eventMixin(LineWidget);
+
+  function adjustScrollWhenAboveVisible(cm, line, diff) {
+    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+      addToScrollPos(cm, null, diff);
+  }
+
+  LineWidget.prototype.clear = function() {
+    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
+    if (no == null || !ws) return;
+    for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
+    if (!ws.length) line.widgets = null;
+    var height = widgetHeight(this);
+    updateLineHeight(line, Math.max(0, line.height - height));
+    if (cm) runInOp(cm, function() {
+      adjustScrollWhenAboveVisible(cm, line, -height);
+      regLineChange(cm, no, "widget");
+    });
+  };
+  LineWidget.prototype.changed = function() {
+    var oldH = this.height, cm = this.doc.cm, line = this.line;
+    this.height = null;
+    var diff = widgetHeight(this) - oldH;
+    if (!diff) return;
+    updateLineHeight(line, line.height + diff);
+    if (cm) runInOp(cm, function() {
+      cm.curOp.forceUpdate = true;
+      adjustScrollWhenAboveVisible(cm, line, diff);
+    });
+  };
+
+  function widgetHeight(widget) {
+    if (widget.height != null) return widget.height;
+    var cm = widget.doc.cm;
+    if (!cm) return 0;
+    if (!contains(document.body, widget.node)) {
+      var parentStyle = "position: relative;";
+      if (widget.coverGutter)
+        parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;";
+      if (widget.noHScroll)
+        parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;";
+      removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
+    }
+    return widget.height = widget.node.parentNode.offsetHeight;
+  }
+
+  function addLineWidget(doc, handle, node, options) {
+    var widget = new LineWidget(doc, node, options);
+    var cm = doc.cm;
+    if (cm && widget.noHScroll) cm.display.alignWidgets = true;
+    changeLine(doc, handle, "widget", function(line) {
+      var widgets = line.widgets || (line.widgets = []);
+      if (widget.insertAt == null) widgets.push(widget);
+      else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
+      widget.line = line;
+      if (cm && !lineIsHidden(doc, line)) {
+        var aboveVisible = heightAtLine(line) < doc.scrollTop;
+        updateLineHeight(line, line.height + widgetHeight(widget));
+        if (aboveVisible) addToScrollPos(cm, null, widget.height);
+        cm.curOp.forceUpdate = true;
+      }
+      return true;
+    });
+    return widget;
+  }
+
+  // LINE DATA STRUCTURE
+
+  // Line objects. These hold state related to a line, including
+  // highlighting info (the styles array).
+  var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
+    this.text = text;
+    attachMarkedSpans(this, markedSpans);
+    this.height = estimateHeight ? estimateHeight(this) : 1;
+  };
+  eventMixin(Line);
+  Line.prototype.lineNo = function() { return lineNo(this); };
+
+  // Change the content (text, markers) of a line. Automatically
+  // invalidates cached information and tries to re-estimate the
+  // line's height.
+  function updateLine(line, text, markedSpans, estimateHeight) {
+    line.text = text;
+    if (line.stateAfter) line.stateAfter = null;
+    if (line.styles) line.styles = null;
+    if (line.order != null) line.order = null;
+    detachMarkedSpans(line);
+    attachMarkedSpans(line, markedSpans);
+    var estHeight = estimateHeight ? estimateHeight(line) : 1;
+    if (estHeight != line.height) updateLineHeight(line, estHeight);
+  }
+
+  // Detach a line from the document tree and its markers.
+  function cleanUpLine(line) {
+    line.parent = null;
+    detachMarkedSpans(line);
+  }
+
+  function extractLineClasses(type, output) {
+    if (type) for (;;) {
+      var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
+      if (!lineClass) break;
+      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
+      var prop = lineClass[1] ? "bgClass" : "textClass";
+      if (output[prop] == null)
+        output[prop] = lineClass[2];
+      else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
+        output[prop] += " " + lineClass[2];
+    }
+    return type;
+  }
+
+  function callBlankLine(mode, state) {
+    if (mode.blankLine) return mode.blankLine(state);
+    if (!mode.innerMode) return;
+    var inner = CodeMirror.innerMode(mode, state);
+    if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
+  }
+
+  function readToken(mode, stream, state, inner) {
+    for (var i = 0; i < 10; i++) {
+      if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;
+      var style = mode.token(stream, state);
+      if (stream.pos > stream.start) return style;
+    }
+    throw new Error("Mode " + mode.name + " failed to advance stream.");
+  }
+
+  // Utility for getTokenAt and getLineTokens
+  function takeToken(cm, pos, precise, asArray) {
+    function getObj(copy) {
+      return {start: stream.start, end: stream.pos,
+              string: stream.current(),
+              type: style || null,
+              state: copy ? copyState(doc.mode, state) : state};
+    }
+
+    var doc = cm.doc, mode = doc.mode, style;
+    pos = clipPos(doc, pos);
+    var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise);
+    var stream = new StringStream(line.text, cm.options.tabSize), tokens;
+    if (asArray) tokens = [];
+    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+      stream.start = stream.pos;
+      style = readToken(mode, stream, state);
+      if (asArray) tokens.push(getObj(true));
+    }
+    return asArray ? tokens : getObj();
+  }
+
+  // Run the given mode's parser over a line, calling f for each token.
+  function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
+    var flattenSpans = mode.flattenSpans;
+    if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
+    var curStart = 0, curStyle = null;
+    var stream = new StringStream(text, cm.options.tabSize), style;
+    var inner = cm.options.addModeClass && [null];
+    if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
+    while (!stream.eol()) {
+      if (stream.pos > cm.options.maxHighlightLength) {
+        flattenSpans = false;
+        if (forceToEnd) processLine(cm, text, state, stream.pos);
+        stream.pos = text.length;
+        style = null;
+      } else {
+        style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses);
+      }
+      if (inner) {
+        var mName = inner[0].name;
+        if (mName) style = "m-" + (style ? mName + " " + style : mName);
+      }
+      if (!flattenSpans || curStyle != style) {
+        while (curStart < stream.start) {
+          curStart = Math.min(stream.start, curStart + 50000);
+          f(curStart, curStyle);
+        }
+        curStyle = style;
+      }
+      stream.start = stream.pos;
+    }
+    while (curStart < stream.pos) {
+      // Webkit seems to refuse to render text nodes longer than 57444 characters
+      var pos = Math.min(stream.pos, curStart + 50000);
+      f(pos, curStyle);
+      curStart = pos;
+    }
+  }
+
+  // Compute a style array (an array starting with a mode generation
+  // -- for invalidation -- followed by pairs of end positions and
+  // style strings), which is used to highlight the tokens on the
+  // line.
+  function highlightLine(cm, line, state, forceToEnd) {
+    // A styles array always starts with a number identifying the
+    // mode/overlays that it is based on (for easy invalidation).
+    var st = [cm.state.modeGen], lineClasses = {};
+    // Compute the base array of styles
+    runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
+      st.push(end, style);
+    }, lineClasses, forceToEnd);
+
+    // Run overlays, adjust style array.
+    for (var o = 0; o < cm.state.overlays.length; ++o) {
+      var overlay = cm.state.overlays[o], i = 1, at = 0;
+      runMode(cm, line.text, overlay.mode, true, function(end, style) {
+        var start = i;
+        // Ensure there's a token end at the current position, and that i points at it
+        while (at < end) {
+          var i_end = st[i];
+          if (i_end > end)
+            st.splice(i, 1, end, st[i+1], i_end);
+          i += 2;
+          at = Math.min(end, i_end);
+        }
+        if (!style) return;
+        if (overlay.opaque) {
+          st.splice(start, i - start, end, "cm-overlay " + style);
+          i = start + 2;
+        } else {
+          for (; start < i; start += 2) {
+            var cur = st[start+1];
+            st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
+          }
+        }
+      }, lineClasses);
+    }
+
+    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
+  }
+
+  function getLineStyles(cm, line, updateFrontier) {
+    if (!line.styles || line.styles[0] != cm.state.modeGen) {
+      var state = getStateBefore(cm, lineNo(line));
+      var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state);
+      line.stateAfter = state;
+      line.styles = result.styles;
+      if (result.classes) line.styleClasses = result.classes;
+      else if (line.styleClasses) line.styleClasses = null;
+      if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
+    }
+    return line.styles;
+  }
+
+  // Lightweight form of highlight -- proceed over this line and
+  // update state, but don't save a style array. Used for lines that
+  // aren't currently visible.
+  function processLine(cm, text, state, startAt) {
+    var mode = cm.doc.mode;
+    var stream = new StringStream(text, cm.options.tabSize);
+    stream.start = stream.pos = startAt || 0;
+    if (text == "") callBlankLine(mode, state);
+    while (!stream.eol()) {
+      readToken(mode, stream, state);
+      stream.start = stream.pos;
+    }
+  }
+
+  // Convert a style as returned by a mode (either null, or a string
+  // containing one or more styles) to a CSS style. This is cached,
+  // and also looks for line-wide styles.
+  var styleToClassCache = {}, styleToClassCacheWithMode = {};
+  function interpretTokenStyle(style, options) {
+    if (!style || /^\s*$/.test(style)) return null;
+    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
+    return cache[style] ||
+      (cache[style] = style.replace(/\S+/g, "cm-$&"));
+  }
+
+  // Render the DOM representation of the text of a line. Also builds
+  // up a 'line map', which points at the DOM nodes that represent
+  // specific stretches of text, and is used by the measuring code.
+  // The returned object contains the DOM node, this map, and
+  // information about line-wide styles that were set by the mode.
+  function buildLineContent(cm, lineView) {
+    // The padding-right forces the element to have a 'border', which
+    // is needed on Webkit to be able to get line-level bounding
+    // rectangles for it (in measureChar).
+    var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
+    var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content,
+                   col: 0, pos: 0, cm: cm,
+                   trailingSpace: false,
+                   splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")};
+    lineView.measure = {};
+
+    // Iterate over the logical lines that make up this visual line.
+    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+      var line = i ? lineView.rest[i - 1] : lineView.line, order;
+      builder.pos = 0;
+      builder.addToken = buildToken;
+      // Optionally wire in some hacks into the token-rendering
+      // algorithm, to deal with browser quirks.
+      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
+        builder.addToken = buildTokenBadBidi(builder.addToken, order);
+      builder.map = [];
+      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
+      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
+      if (line.styleClasses) {
+        if (line.styleClasses.bgClass)
+          builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
+        if (line.styleClasses.textClass)
+          builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
+      }
+
+      // Ensure at least a single node is present, for measuring.
+      if (builder.map.length == 0)
+        builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));
+
+      // Store the map and a cache object for the current logical line
+      if (i == 0) {
+        lineView.measure.map = builder.map;
+        lineView.measure.cache = {};
+      } else {
+        (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
+        (lineView.measure.caches || (lineView.measure.caches = [])).push({});
+      }
+    }
+
+    // See issue #2901
+    if (webkit) {
+      var last = builder.content.lastChild
+      if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
+        builder.content.className = "cm-tab-wrap-hack";
+    }
+
+    signal(cm, "renderLine", cm, lineView.line, builder.pre);
+    if (builder.pre.className)
+      builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");
+
+    return builder;
+  }
+
+  function defaultSpecialCharPlaceholder(ch) {
+    var token = elt("span", "\u2022", "cm-invalidchar");
+    token.title = "\\u" + ch.charCodeAt(0).toString(16);
+    token.setAttribute("aria-label", token.title);
+    return token;
+  }
+
+  // Build up the DOM representation for a single token, and add it to
+  // the line map. Takes care to render special characters separately.
+  function buildToken(builder, text, style, startStyle, endStyle, title, css) {
+    if (!text) return;
+    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text
+    var special = builder.cm.state.specialChars, mustWrap = false;
+    if (!special.test(text)) {
+      builder.col += text.length;
+      var content = document.createTextNode(displayText);
+      builder.map.push(builder.pos, builder.pos + text.length, content);
+      if (ie && ie_version < 9) mustWrap = true;
+      builder.pos += text.length;
+    } else {
+      var content = document.createDocumentFragment(), pos = 0;
+      while (true) {
+        special.lastIndex = pos;
+        var m = special.exec(text);
+        var skipped = m ? m.index - pos : text.length - pos;
+        if (skipped) {
+          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
+          if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+          else content.appendChild(txt);
+          builder.map.push(builder.pos, builder.pos + skipped, txt);
+          builder.col += skipped;
+          builder.pos += skipped;
+        }
+        if (!m) break;
+        pos += skipped + 1;
+        if (m[0] == "\t") {
+          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
+          var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
+          txt.setAttribute("role", "presentation");
+          txt.setAttribute("cm-text", "\t");
+          builder.col += tabWidth;
+        } else if (m[0] == "\r" || m[0] == "\n") {
+          var txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
+          txt.setAttribute("cm-text", m[0]);
+          builder.col += 1;
+        } else {
+          var txt = builder.cm.options.specialCharPlaceholder(m[0]);
+          txt.setAttribute("cm-text", m[0]);
+          if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+          else content.appendChild(txt);
+          builder.col += 1;
+        }
+        builder.map.push(builder.pos, builder.pos + 1, txt);
+        builder.pos++;
+      }
+    }
+    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32
+    if (style || startStyle || endStyle || mustWrap || css) {
+      var fullStyle = style || "";
+      if (startStyle) fullStyle += startStyle;
+      if (endStyle) fullStyle += endStyle;
+      var token = elt("span", [content], fullStyle, css);
+      if (title) token.title = title;
+      return builder.content.appendChild(token);
+    }
+    builder.content.appendChild(content);
+  }
+
+  function splitSpaces(text, trailingBefore) {
+    if (text.length > 1 && !/  /.test(text)) return text
+    var spaceBefore = trailingBefore, result = ""
+    for (var i = 0; i < text.length; i++) {
+      var ch = text.charAt(i)
+      if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
+        ch = "\u00a0"
+      result += ch
+      spaceBefore = ch == " "
+    }
+    return result
+  }
+
+  // Work around nonsense dimensions being reported for stretches of
+  // right-to-left text.
+  function buildTokenBadBidi(inner, order) {
+    return function(builder, text, style, startStyle, endStyle, title, css) {
+      style = style ? style + " cm-force-border" : "cm-force-border";
+      var start = builder.pos, end = start + text.length;
+      for (;;) {
+        // Find the part that overlaps with the start of this text
+        for (var i = 0; i < order.length; i++) {
+          var part = order[i];
+          if (part.to > start && part.from <= start) break;
+        }
+        if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css);
+        inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);
+        startStyle = null;
+        text = text.slice(part.to - start);
+        start = part.to;
+      }
+    };
+  }
+
+  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+    var widget = !ignoreWidget && marker.widgetNode;
+    if (widget) builder.map.push(builder.pos, builder.pos + size, widget);
+    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+      if (!widget)
+        widget = builder.content.appendChild(document.createElement("span"));
+      widget.setAttribute("cm-marker", marker.id);
+    }
+    if (widget) {
+      builder.cm.display.input.setUneditable(widget);
+      builder.content.appendChild(widget);
+    }
+    builder.pos += size;
+    builder.trailingSpace = false
+  }
+
+  // Outputs a number of spans to make up a line, taking highlighting
+  // and marked text into account.
+  function insertLineContent(line, builder, styles) {
+    var spans = line.markedSpans, allText = line.text, at = 0;
+    if (!spans) {
+      for (var i = 1; i < styles.length; i+=2)
+        builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
+      return;
+    }
+
+    var len = allText.length, pos = 0, i = 1, text = "", style, css;
+    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
+    for (;;) {
+      if (nextChange == pos) { // Update current marker set
+        spanStyle = spanEndStyle = spanStartStyle = title = css = "";
+        collapsed = null; nextChange = Infinity;
+        var foundBookmarks = [], endStyles
+        for (var j = 0; j < spans.length; ++j) {
+          var sp = spans[j], m = sp.marker;
+          if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+            foundBookmarks.push(m);
+          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+            if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+              nextChange = sp.to;
+              spanEndStyle = "";
+            }
+            if (m.className) spanStyle += " " + m.className;
+            if (m.css) css = (css ? css + ";" : "") + m.css;
+            if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
+            if (m.endStyle && sp.to == nextChange) (endStyles || (endStyles = [])).push(m.endStyle, sp.to)
+            if (m.title && !title) title = m.title;
+            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+              collapsed = sp;
+          } else if (sp.from > pos && nextChange > sp.from) {
+            nextChange = sp.from;
+          }
+        }
+        if (endStyles) for (var j = 0; j < endStyles.length; j += 2)
+          if (endStyles[j + 1] == nextChange) spanEndStyle += " " + endStyles[j]
+
+        if (!collapsed || collapsed.from == pos) for (var j = 0; j < foundBookmarks.length; ++j)
+          buildCollapsedSpan(builder, 0, foundBookmarks[j]);
+        if (collapsed && (collapsed.from || 0) == pos) {
+          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+                             collapsed.marker, collapsed.from == null);
+          if (collapsed.to == null) return;
+          if (collapsed.to == pos) collapsed = false;
+        }
+      }
+      if (pos >= len) break;
+
+      var upto = Math.min(len, nextChange);
+      while (true) {
+        if (text) {
+          var end = pos + text.length;
+          if (!collapsed) {
+            var tokenText = end > upto ? text.slice(0, upto - pos) : text;
+            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css);
+          }
+          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
+          pos = end;
+          spanStartStyle = "";
+        }
+        text = allText.slice(at, at = styles[i++]);
+        style = interpretTokenStyle(styles[i++], builder.cm.options);
+      }
+    }
+  }
+
+  // DOCUMENT DATA STRUCTURE
+
+  // By default, updates that start and end at the beginning of a line
+  // are treated specially, in order to make the association of line
+  // widgets and marker elements with the text behave more intuitive.
+  function isWholeLineUpdate(doc, change) {
+    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+      (!doc.cm || doc.cm.options.wholeLineUpdateBefore);
+  }
+
+  // Perform a change on the document data structure.
+  function updateDoc(doc, change, markedSpans, estimateHeight) {
+    function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
+    function update(line, text, spans) {
+      updateLine(line, text, spans, estimateHeight);
+      signalLater(line, "change", line, change);
+    }
+    function linesFor(start, end) {
+      for (var i = start, result = []; i < end; ++i)
+        result.push(new Line(text[i], spansFor(i), estimateHeight));
+      return result;
+    }
+
+    var from = change.from, to = change.to, text = change.text;
+    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
+    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
+
+    // Adjust the line structure
+    if (change.full) {
+      doc.insert(0, linesFor(0, text.length));
+      doc.remove(text.length, doc.size - text.length);
+    } else if (isWholeLineUpdate(doc, change)) {
+      // This is a whole-line replace. Treated specially to make
+      // sure line objects move the way they are supposed to.
+      var added = linesFor(0, text.length - 1);
+      update(lastLine, lastLine.text, lastSpans);
+      if (nlines) doc.remove(from.line, nlines);
+      if (added.length) doc.insert(from.line, added);
+    } else if (firstLine == lastLine) {
+      if (text.length == 1) {
+        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
+      } else {
+        var added = linesFor(1, text.length - 1);
+        added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
+        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+        doc.insert(from.line + 1, added);
+      }
+    } else if (text.length == 1) {
+      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
+      doc.remove(from.line + 1, nlines);
+    } else {
+      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
+      var added = linesFor(1, text.length - 1);
+      if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
+      doc.insert(from.line + 1, added);
+    }
+
+    signalLater(doc, "change", doc, change);
+  }
+
+  // The document is represented as a BTree consisting of leaves, with
+  // chunk of lines in them, and branches, with up to ten leaves or
+  // other branch nodes below them. The top node is always a branch
+  // node, and is the document object itself (meaning it has
+  // additional methods and properties).
+  //
+  // All nodes have parent links. The tree is used both to go from
+  // line numbers to line objects, and to go from objects to numbers.
+  // It also indexes by height, and is used to convert between height
+  // and line object, and to find the total height of the document.
+  //
+  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+  function LeafChunk(lines) {
+    this.lines = lines;
+    this.parent = null;
+    for (var i = 0, height = 0; i < lines.length; ++i) {
+      lines[i].parent = this;
+      height += lines[i].height;
+    }
+    this.height = height;
+  }
+
+  LeafChunk.prototype = {
+    chunkSize: function() { return this.lines.length; },
+    // Remove the n lines at offset 'at'.
+    removeInner: function(at, n) {
+      for (var i = at, e = at + n; i < e; ++i) {
+        var line = this.lines[i];
+        this.height -= line.height;
+        cleanUpLine(line);
+        signalLater(line, "delete");
+      }
+      this.lines.splice(at, n);
+    },
+    // Helper used to collapse a small branch into a single leaf.
+    collapse: function(lines) {
+      lines.push.apply(lines, this.lines);
+    },
+    // Insert the given array of lines at offset 'at', count them as
+    // having the given height.
+    insertInner: function(at, lines, height) {
+      this.height += height;
+      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
+      for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
+    },
+    // Used to iterate over a part of the tree.
+    iterN: function(at, n, op) {
+      for (var e = at + n; at < e; ++at)
+        if (op(this.lines[at])) return true;
+    }
+  };
+
+  function BranchChunk(children) {
+    this.children = children;
+    var size = 0, height = 0;
+    for (var i = 0; i < children.length; ++i) {
+      var ch = children[i];
+      size += ch.chunkSize(); height += ch.height;
+      ch.parent = this;
+    }
+    this.size = size;
+    this.height = height;
+    this.parent = null;
+  }
+
+  BranchChunk.prototype = {
+    chunkSize: function() { return this.size; },
+    removeInner: function(at, n) {
+      this.size -= n;
+      for (var i = 0; i < this.children.length; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at < sz) {
+          var rm = Math.min(n, sz - at), oldHeight = child.height;
+          child.removeInner(at, rm);
+          this.height -= oldHeight - child.height;
+          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
+          if ((n -= rm) == 0) break;
+          at = 0;
+        } else at -= sz;
+      }
+      // If the result is smaller than 25 lines, ensure that it is a
+      // single leaf node.
+      if (this.size - n < 25 &&
+          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+        var lines = [];
+        this.collapse(lines);
+        this.children = [new LeafChunk(lines)];
+        this.children[0].parent = this;
+      }
+    },
+    collapse: function(lines) {
+      for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
+    },
+    insertInner: function(at, lines, height) {
+      this.size += lines.length;
+      this.height += height;
+      for (var i = 0; i < this.children.length; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at <= sz) {
+          child.insertInner(at, lines, height);
+          if (child.lines && child.lines.length > 50) {
+            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
+            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
+            var remaining = child.lines.length % 25 + 25
+            for (var pos = remaining; pos < child.lines.length;) {
+              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
+              child.height -= leaf.height;
+              this.children.splice(++i, 0, leaf);
+              leaf.parent = this;
+            }
+            child.lines = child.lines.slice(0, remaining);
+            this.maybeSpill();
+          }
+          break;
+        }
+        at -= sz;
+      }
+    },
+    // When a node has grown, check whether it should be split.
+    maybeSpill: function() {
+      if (this.children.length <= 10) return;
+      var me = this;
+      do {
+        var spilled = me.children.splice(me.children.length - 5, 5);
+        var sibling = new BranchChunk(spilled);
+        if (!me.parent) { // Become the parent node
+          var copy = new BranchChunk(me.children);
+          copy.parent = me;
+          me.children = [copy, sibling];
+          me = copy;
+       } else {
+          me.size -= sibling.size;
+          me.height -= sibling.height;
+          var myIndex = indexOf(me.parent.children, me);
+          me.parent.children.splice(myIndex + 1, 0, sibling);
+        }
+        sibling.parent = me.parent;
+      } while (me.children.length > 10);
+      me.parent.maybeSpill();
+    },
+    iterN: function(at, n, op) {
+      for (var i = 0; i < this.children.length; ++i) {
+        var child = this.children[i], sz = child.chunkSize();
+        if (at < sz) {
+          var used = Math.min(n, sz - at);
+          if (child.iterN(at, used, op)) return true;
+          if ((n -= used) == 0) break;
+          at = 0;
+        } else at -= sz;
+      }
+    }
+  };
+
+  var nextDocId = 0;
+  var Doc = CodeMirror.Doc = function(text, mode, firstLine, lineSep) {
+    if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep);
+    if (firstLine == null) firstLine = 0;
+
+    BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
+    this.first = firstLine;
+    this.scrollTop = this.scrollLeft = 0;
+    this.cantEdit = false;
+    this.cleanGeneration = 1;
+    this.frontier = firstLine;
+    var start = Pos(firstLine, 0);
+    this.sel = simpleSelection(start);
+    this.history = new History(null);
+    this.id = ++nextDocId;
+    this.modeOption = mode;
+    this.lineSep = lineSep;
+    this.extend = false;
+
+    if (typeof text == "string") text = this.splitLines(text);
+    updateDoc(this, {from: start, to: start, text: text});
+    setSelection(this, simpleSelection(start), sel_dontScroll);
+  };
+
+  Doc.prototype = createObj(BranchChunk.prototype, {
+    constructor: Doc,
+    // Iterate over the document. Supports two forms -- with only one
+    // argument, it calls that for each line in the document. With
+    // three, it iterates over the range given by the first two (with
+    // the second being non-inclusive).
+    iter: function(from, to, op) {
+      if (op) this.iterN(from - this.first, to - from, op);
+      else this.iterN(this.first, this.first + this.size, from);
+    },
+
+    // Non-public interface for adding and removing lines.
+    insert: function(at, lines) {
+      var height = 0;
+      for (var i = 0; i < lines.length; ++i) height += lines[i].height;
+      this.insertInner(at - this.first, lines, height);
+    },
+    remove: function(at, n) { this.removeInner(at - this.first, n); },
+
+    // From here, the methods are part of the public interface. Most
+    // are also available from CodeMirror (editor) instances.
+
+    getValue: function(lineSep) {
+      var lines = getLines(this, this.first, this.first + this.size);
+      if (lineSep === false) return lines;
+      return lines.join(lineSep || this.lineSeparator());
+    },
+    setValue: docMethodOp(function(code) {
+      var top = Pos(this.first, 0), last = this.first + this.size - 1;
+      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+                        text: this.splitLines(code), origin: "setValue", full: true}, true);
+      setSelection(this, simpleSelection(top));
+    }),
+    replaceRange: function(code, from, to, origin) {
+      from = clipPos(this, from);
+      to = to ? clipPos(this, to) : from;
+      replaceRange(this, code, from, to, origin);
+    },
+    getRange: function(from, to, lineSep) {
+      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
+      if (lineSep === false) return lines;
+      return lines.join(lineSep || this.lineSeparator());
+    },
+
+    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
+
+    getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
+    getLineNumber: function(line) {return lineNo(line);},
+
+    getLineHandleVisualStart: function(line) {
+      if (typeof line == "number") line = getLine(this, line);
+      return visualLine(line);
+    },
+
+    lineCount: function() {return this.size;},
+    firstLine: function() {return this.first;},
+    lastLine: function() {return this.first + this.size - 1;},
+
+    clipPos: function(pos) {return clipPos(this, pos);},
+
+    getCursor: function(start) {
+      var range = this.sel.primary(), pos;
+      if (start == null || start == "head") pos = range.head;
+      else if (start == "anchor") pos = range.anchor;
+      else if (start == "end" || start == "to" || start === false) pos = range.to();
+      else pos = range.from();
+      return pos;
+    },
+    listSelections: function() { return this.sel.ranges; },
+    somethingSelected: function() {return this.sel.somethingSelected();},
+
+    setCursor: docMethodOp(function(line, ch, options) {
+      setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
+    }),
+    setSelection: docMethodOp(function(anchor, head, options) {
+      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
+    }),
+    extendSelection: docMethodOp(function(head, other, options) {
+      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
+    }),
+    extendSelections: docMethodOp(function(heads, options) {
+      extendSelections(this, clipPosArray(this, heads), options);
+    }),
+    extendSelectionsBy: docMethodOp(function(f, options) {
+      var heads = map(this.sel.ranges, f);
+      extendSelections(this, clipPosArray(this, heads), options);
+    }),
+    setSelections: docMethodOp(function(ranges, primary, options) {
+      if (!ranges.length) return;
+      for (var i = 0, out = []; i < ranges.length; i++)
+        out[i] = new Range(clipPos(this, ranges[i].anchor),
+                           clipPos(this, ranges[i].head));
+      if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
+      setSelection(this, normalizeSelection(out, primary), options);
+    }),
+    addSelection: docMethodOp(function(anchor, head, options) {
+      var ranges = this.sel.ranges.slice(0);
+      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
+      setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
+    }),
+
+    getSelection: function(lineSep) {
+      var ranges = this.sel.ranges, lines;
+      for (var i = 0; i < ranges.length; i++) {
+        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+        lines = lines ? lines.concat(sel) : sel;
+      }
+      if (lineSep === false) return lines;
+      else return lines.join(lineSep || this.lineSeparator());
+    },
+    getSelections: function(lineSep) {
+      var parts = [], ranges = this.sel.ranges;
+      for (var i = 0; i < ranges.length; i++) {
+        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+        if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator());
+        parts[i] = sel;
+      }
+      return parts;
+    },
+    replaceSelection: function(code, collapse, origin) {
+      var dup = [];
+      for (var i = 0; i < this.sel.ranges.length; i++)
+        dup[i] = code;
+      this.replaceSelections(dup, collapse, origin || "+input");
+    },
+    replaceSelections: docMethodOp(function(code, collapse, origin) {
+      var changes = [], sel = this.sel;
+      for (var i = 0; i < sel.ranges.length; i++) {
+        var range = sel.ranges[i];
+        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
+      }
+      var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
+      for (var i = changes.length - 1; i >= 0; i--)
+        makeChange(this, changes[i]);
+      if (newSel) setSelectionReplaceHistory(this, newSel);
+      else if (this.cm) ensureCursorVisible(this.cm);
+    }),
+    undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
+    redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
+    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
+    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
+
+    setExtending: function(val) {this.extend = val;},
+    getExtending: function() {return this.extend;},
+
+    historySize: function() {
+      var hist = this.history, done = 0, undone = 0;
+      for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
+      for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
+      return {undo: done, redo: undone};
+    },
+    clearHistory: function() {this.history = new History(this.history.maxGeneration);},
+
+    markClean: function() {
+      this.cleanGeneration = this.changeGeneration(true);
+    },
+    changeGeneration: function(forceSplit) {
+      if (forceSplit)
+        this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
+      return this.history.generation;
+    },
+    isClean: function (gen) {
+      return this.history.generation == (gen || this.cleanGeneration);
+    },
+
+    getHistory: function() {
+      return {done: copyHistoryArray(this.history.done),
+              undone: copyHistoryArray(this.history.undone)};
+    },
+    setHistory: function(histData) {
+      var hist = this.history = new History(this.history.maxGeneration);
+      hist.done = copyHistoryArray(histData.done.slice(0), null, true);
+      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
+    },
+
+    addLineClass: docMethodOp(function(handle, where, cls) {
+      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
+        var prop = where == "text" ? "textClass"
+                 : where == "background" ? "bgClass"
+                 : where == "gutter" ? "gutterClass" : "wrapClass";
+        if (!line[prop]) line[prop] = cls;
+        else if (classTest(cls).test(line[prop])) return false;
+        else line[prop] += " " + cls;
+        return true;
+      });
+    }),
+    removeLineClass: docMethodOp(function(handle, where, cls) {
+      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
+        var prop = where == "text" ? "textClass"
+                 : where == "background" ? "bgClass"
+                 : where == "gutter" ? "gutterClass" : "wrapClass";
+        var cur = line[prop];
+        if (!cur) return false;
+        else if (cls == null) line[prop] = null;
+        else {
+          var found = cur.match(classTest(cls));
+          if (!found) return false;
+          var end = found.index + found[0].length;
+          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
+        }
+        return true;
+      });
+    }),
+
+    addLineWidget: docMethodOp(function(handle, node, options) {
+      return addLineWidget(this, handle, node, options);
+    }),
+    removeLineWidget: function(widget) { widget.clear(); },
+
+    markText: function(from, to, options) {
+      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range");
+    },
+    setBookmark: function(pos, options) {
+      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+                      insertLeft: options && options.insertLeft,
+                      clearWhenEmpty: false, shared: options && options.shared,
+                      handleMouseEvents: options && options.handleMouseEvents};
+      pos = clipPos(this, pos);
+      return markText(this, pos, pos, realOpts, "bookmark");
+    },
+    findMarksAt: function(pos) {
+      pos = clipPos(this, pos);
+      var markers = [], spans = getLine(this, pos.line).markedSpans;
+      if (spans) for (var i = 0; i < spans.length; ++i) {
+        var span = spans[i];
+        if ((span.from == null || span.from <= pos.ch) &&
+            (span.to == null || span.to >= pos.ch))
+          markers.push(span.marker.parent || span.marker);
+      }
+      return markers;
+    },
+    findMarks: function(from, to, filter) {
+      from = clipPos(this, from); to = clipPos(this, to);
+      var found = [], lineNo = from.line;
+      this.iter(from.line, to.line + 1, function(line) {
+        var spans = line.markedSpans;
+        if (spans) for (var i = 0; i < spans.length; i++) {
+          var span = spans[i];
+          if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
+                span.from == null && lineNo != from.line ||
+                span.from != null && lineNo == to.line && span.from >= to.ch) &&
+              (!filter || filter(span.marker)))
+            found.push(span.marker.parent || span.marker);
+        }
+        ++lineNo;
+      });
+      return found;
+    },
+    getAllMarks: function() {
+      var markers = [];
+      this.iter(function(line) {
+        var sps = line.markedSpans;
+        if (sps) for (var i = 0; i < sps.length; ++i)
+          if (sps[i].from != null) markers.push(sps[i].marker);
+      });
+      return markers;
+    },
+
+    posFromIndex: function(off) {
+      var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
+      this.iter(function(line) {
+        var sz = line.text.length + sepSize;
+        if (sz > off) { ch = off; return true; }
+        off -= sz;
+        ++lineNo;
+      });
+      return clipPos(this, Pos(lineNo, ch));
+    },
+    indexFromPos: function (coords) {
+      coords = clipPos(this, coords);
+      var index = coords.ch;
+      if (coords.line < this.first || coords.ch < 0) return 0;
+      var sepSize = this.lineSeparator().length;
+      this.iter(this.first, coords.line, function (line) {
+        index += line.text.length + sepSize;
+      });
+      return index;
+    },
+
+    copy: function(copyHistory) {
+      var doc = new Doc(getLines(this, this.first, this.first + this.size),
+                        this.modeOption, this.first, this.lineSep);
+      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
+      doc.sel = this.sel;
+      doc.extend = false;
+      if (copyHistory) {
+        doc.history.undoDepth = this.history.undoDepth;
+        doc.setHistory(this.getHistory());
+      }
+      return doc;
+    },
+
+    linkedDoc: function(options) {
+      if (!options) options = {};
+      var from = this.first, to = this.first + this.size;
+      if (options.from != null && options.from > from) from = options.from;
+      if (options.to != null && options.to < to) to = options.to;
+      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep);
+      if (options.sharedHist) copy.history = this.history;
+      (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
+      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
+      copySharedMarkers(copy, findSharedMarkers(this));
+      return copy;
+    },
+    unlinkDoc: function(other) {
+      if (other instanceof CodeMirror) other = other.doc;
+      if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
+        var link = this.linked[i];
+        if (link.doc != other) continue;
+        this.linked.splice(i, 1);
+        other.unlinkDoc(this);
+        detachSharedMarkers(findSharedMarkers(this));
+        break;
+      }
+      // If the histories were shared, split them again
+      if (other.history == this.history) {
+        var splitIds = [other.id];
+        linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
+        other.history = new History(null);
+        other.history.done = copyHistoryArray(this.history.done, splitIds);
+        other.history.undone = copyHistoryArray(this.history.undone, splitIds);
+      }
+    },
+    iterLinkedDocs: function(f) {linkedDocs(this, f);},
+
+    getMode: function() {return this.mode;},
+    getEditor: function() {return this.cm;},
+
+    splitLines: function(str) {
+      if (this.lineSep) return str.split(this.lineSep);
+      return splitLinesAuto(str);
+    },
+    lineSeparator: function() { return this.lineSep || "\n"; }
+  });
+
+  // Public alias.
+  Doc.prototype.eachLine = Doc.prototype.iter;
+
+  // Set up methods on CodeMirror's prototype to redirect to the editor's document.
+  var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
+  for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+    CodeMirror.prototype[prop] = (function(method) {
+      return function() {return method.apply(this.doc, arguments);};
+    })(Doc.prototype[prop]);
+
+  eventMixin(Doc);
+
+  // Call f for all linked documents.
+  function linkedDocs(doc, f, sharedHistOnly) {
+    function propagate(doc, skip, sharedHist) {
+      if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
+        var rel = doc.linked[i];
+        if (rel.doc == skip) continue;
+        var shared = sharedHist && rel.sharedHist;
+        if (sharedHistOnly && !shared) continue;
+        f(rel.doc, shared);
+        propagate(rel.doc, doc, shared);
+      }
+    }
+    propagate(doc, null, true);
+  }
+
+  // Attach a document to an editor.
+  function attachDoc(cm, doc) {
+    if (doc.cm) throw new Error("This document is already in use.");
+    cm.doc = doc;
+    doc.cm = cm;
+    estimateLineHeights(cm);
+    loadMode(cm);
+    if (!cm.options.lineWrapping) findMaxLine(cm);
+    cm.options.mode = doc.modeOption;
+    regChange(cm);
+  }
+
+  // LINE UTILITIES
+
+  // Find the line object corresponding to the given line number.
+  function getLine(doc, n) {
+    n -= doc.first;
+    if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
+    for (var chunk = doc; !chunk.lines;) {
+      for (var i = 0;; ++i) {
+        var child = chunk.children[i], sz = child.chunkSize();
+        if (n < sz) { chunk = child; break; }
+        n -= sz;
+      }
+    }
+    return chunk.lines[n];
+  }
+
+  // Get the part of a document between two positions, as an array of
+  // strings.
+  function getBetween(doc, start, end) {
+    var out = [], n = start.line;
+    doc.iter(start.line, end.line + 1, function(line) {
+      var text = line.text;
+      if (n == end.line) text = text.slice(0, end.ch);
+      if (n == start.line) text = text.slice(start.ch);
+      out.push(text);
+      ++n;
+    });
+    return out;
+  }
+  // Get the lines between from and to, as array of strings.
+  function getLines(doc, from, to) {
+    var out = [];
+    doc.iter(from, to, function(line) { out.push(line.text); });
+    return out;
+  }
+
+  // Update the height of a line, propagating the height change
+  // upwards to parent nodes.
+  function updateLineHeight(line, height) {
+    var diff = height - line.height;
+    if (diff) for (var n = line; n; n = n.parent) n.height += diff;
+  }
+
+  // Given a line object, find its line number by walking up through
+  // its parent links.
+  function lineNo(line) {
+    if (line.parent == null) return null;
+    var cur = line.parent, no = indexOf(cur.lines, line);
+    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+      for (var i = 0;; ++i) {
+        if (chunk.children[i] == cur) break;
+        no += chunk.children[i].chunkSize();
+      }
+    }
+    return no + cur.first;
+  }
+
+  // Find the line at the given vertical position, using the height
+  // information in the document tree.
+  function lineAtHeight(chunk, h) {
+    var n = chunk.first;
+    outer: do {
+      for (var i = 0; i < chunk.children.length; ++i) {
+        var child = chunk.children[i], ch = child.height;
+        if (h < ch) { chunk = child; continue outer; }
+        h -= ch;
+        n += child.chunkSize();
+      }
+      return n;
+    } while (!chunk.lines);
+    for (var i = 0; i < chunk.lines.length; ++i) {
+      var line = chunk.lines[i], lh = line.height;
+      if (h < lh) break;
+      h -= lh;
+    }
+    return n + i;
+  }
+
+
+  // Find the height above the given line.
+  function heightAtLine(lineObj) {
+    lineObj = visualLine(lineObj);
+
+    var h = 0, chunk = lineObj.parent;
+    for (var i = 0; i < chunk.lines.length; ++i) {
+      var line = chunk.lines[i];
+      if (line == lineObj) break;
+      else h += line.height;
+    }
+    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+      for (var i = 0; i < p.children.length; ++i) {
+        var cur = p.children[i];
+        if (cur == chunk) break;
+        else h += cur.height;
+      }
+    }
+    return h;
+  }
+
+  // Get the bidi ordering for the given line (and cache it). Returns
+  // false for lines that are fully left-to-right, and an array of
+  // BidiSpan objects otherwise.
+  function getOrder(line) {
+    var order = line.order;
+    if (order == null) order = line.order = bidiOrdering(line.text);
+    return order;
+  }
+
+  // HISTORY
+
+  function History(startGen) {
+    // Arrays of change events and selections. Doing something adds an
+    // event to done and clears undo. Undoing moves events from done
+    // to undone, redoing moves them in the other direction.
+    this.done = []; this.undone = [];
+    this.undoDepth = Infinity;
+    // Used to track when changes can be merged into a single undo
+    // event
+    this.lastModTime = this.lastSelTime = 0;
+    this.lastOp = this.lastSelOp = null;
+    this.lastOrigin = this.lastSelOrigin = null;
+    // Used by the isClean() method
+    this.generation = this.maxGeneration = startGen || 1;
+  }
+
+  // Create a history change event from an updateDoc-style change
+  // object.
+  function historyChangeFromChange(doc, change) {
+    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
+    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
+    linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
+    return histChange;
+  }
+
+  // Pop all selection events off the end of a history array. Stop at
+  // a change event.
+  function clearSelectionEvents(array) {
+    while (array.length) {
+      var last = lst(array);
+      if (last.ranges) array.pop();
+      else break;
+    }
+  }
+
+  // Find the top change event in the history. Pop off selection
+  // events that are in the way.
+  function lastChangeEvent(hist, force) {
+    if (force) {
+      clearSelectionEvents(hist.done);
+      return lst(hist.done);
+    } else if (hist.done.length && !lst(hist.done).ranges) {
+      return lst(hist.done);
+    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+      hist.done.pop();
+      return lst(hist.done);
+    }
+  }
+
+  // Register a change in the history. Merges changes that are within
+  // a single operation, ore are close together with an origin that
+  // allows merging (starting with "+") into a single event.
+  function addChangeToHistory(doc, change, selAfter, opId) {
+    var hist = doc.history;
+    hist.undone.length = 0;
+    var time = +new Date, cur;
+
+    if ((hist.lastOp == opId ||
+         hist.lastOrigin == change.origin && change.origin &&
+         ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
+          change.origin.charAt(0) == "*")) &&
+        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+      // Merge this change into the last event
+      var last = lst(cur.changes);
+      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+        // Optimized case for simple insertion -- don't want to add
+        // new changesets for every character typed
+        last.to = changeEnd(change);
+      } else {
+        // Add new sub-event
+        cur.changes.push(historyChangeFromChange(doc, change));
+      }
+    } else {
+      // Can not be merged, start a new event.
+      var before = lst(hist.done);
+      if (!before || !before.ranges)
+        pushSelectionToHistory(doc.sel, hist.done);
+      cur = {changes: [historyChangeFromChange(doc, change)],
+             generation: hist.generation};
+      hist.done.push(cur);
+      while (hist.done.length > hist.undoDepth) {
+        hist.done.shift();
+        if (!hist.done[0].ranges) hist.done.shift();
+      }
+    }
+    hist.done.push(selAfter);
+    hist.generation = ++hist.maxGeneration;
+    hist.lastModTime = hist.lastSelTime = time;
+    hist.lastOp = hist.lastSelOp = opId;
+    hist.lastOrigin = hist.lastSelOrigin = change.origin;
+
+    if (!last) signal(doc, "historyAdded");
+  }
+
+  function selectionEventCanBeMerged(doc, origin, prev, sel) {
+    var ch = origin.charAt(0);
+    return ch == "*" ||
+      ch == "+" &&
+      prev.ranges.length == sel.ranges.length &&
+      prev.somethingSelected() == sel.somethingSelected() &&
+      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
+  }
+
+  // Called whenever the selection changes, sets the new selection as
+  // the pending selection in the history, and pushes the old pending
+  // selection into the 'done' array when it was significantly
+  // different (in number of selected ranges, emptiness, or time).
+  function addSelectionToHistory(doc, sel, opId, options) {
+    var hist = doc.history, origin = options && options.origin;
+
+    // A new event is started when the previous origin does not match
+    // the current, or the origins don't allow matching. Origins
+    // starting with * are always merged, those starting with + are
+    // merged when similar and close together in time.
+    if (opId == hist.lastSelOp ||
+        (origin && hist.lastSelOrigin == origin &&
+         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+      hist.done[hist.done.length - 1] = sel;
+    else
+      pushSelectionToHistory(sel, hist.done);
+
+    hist.lastSelTime = +new Date;
+    hist.lastSelOrigin = origin;
+    hist.lastSelOp = opId;
+    if (options && options.clearRedo !== false)
+      clearSelectionEvents(hist.undone);
+  }
+
+  function pushSelectionToHistory(sel, dest) {
+    var top = lst(dest);
+    if (!(top && top.ranges && top.equals(sel)))
+      dest.push(sel);
+  }
+
+  // Used to store marked span information in the history.
+  function attachLocalSpans(doc, change, from, to) {
+    var existing = change["spans_" + doc.id], n = 0;
+    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
+      if (line.markedSpans)
+        (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
+      ++n;
+    });
+  }
+
+  // When un/re-doing restores text containing marked spans, those
+  // that have been explicitly cleared should not be restored.
+  function removeClearedSpans(spans) {
+    if (!spans) return null;
+    for (var i = 0, out; i < spans.length; ++i) {
+      if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
+      else if (out) out.push(spans[i]);
+    }
+    return !out ? spans : out.length ? out : null;
+  }
+
+  // Retrieve and filter the old marked spans stored in a change event.
+  function getOldSpans(doc, change) {
+    var found = change["spans_" + doc.id];
+    if (!found) return null;
+    for (var i = 0, nw = []; i < change.text.length; ++i)
+      nw.push(removeClearedSpans(found[i]));
+    return nw;
+  }
+
+  // Used both to provide a JSON-safe object in .getHistory, and, when
+  // detaching a document, to split the history in two
+  function copyHistoryArray(events, newGroup, instantiateSel) {
+    for (var i = 0, copy = []; i < events.length; ++i) {
+      var event = events[i];
+      if (event.ranges) {
+        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
+        continue;
+      }
+      var changes = event.changes, newChanges = [];
+      copy.push({changes: newChanges});
+      for (var j = 0; j < changes.length; ++j) {
+        var change = changes[j], m;
+        newChanges.push({from: change.from, to: change.to, text: change.text});
+        if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
+          if (indexOf(newGroup, Number(m[1])) > -1) {
+            lst(newChanges)[prop] = change[prop];
+            delete change[prop];
+          }
+        }
+      }
+    }
+    return copy;
+  }
+
+  // Rebasing/resetting history to deal with externally-sourced changes
+
+  function rebaseHistSelSingle(pos, from, to, diff) {
+    if (to < pos.line) {
+      pos.line += diff;
+    } else if (from < pos.line) {
+      pos.line = from;
+      pos.ch = 0;
+    }
+  }
+
+  // Tries to rebase an array of history events given a change in the
+  // document. If the change touches the same lines as the event, the
+  // event, and everything 'behind' it, is discarded. If the change is
+  // before the event, the event's positions are updated. Uses a
+  // copy-on-write scheme for the positions, to avoid having to
+  // reallocate them all on every rebase, but also avoid problems with
+  // shared position objects being unsafely updated.
+  function rebaseHistArray(array, from, to, diff) {
+    for (var i = 0; i < array.length; ++i) {
+      var sub = array[i], ok = true;
+      if (sub.ranges) {
+        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
+        for (var j = 0; j < sub.ranges.length; j++) {
+          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
+          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
+        }
+        continue;
+      }
+      for (var j = 0; j < sub.changes.length; ++j) {
+        var cur = sub.changes[j];
+        if (to < cur.from.line) {
+          cur.from = Pos(cur.from.line + diff, cur.from.ch);
+          cur.to = Pos(cur.to.line + diff, cur.to.ch);
+        } else if (from <= cur.to.line) {
+          ok = false;
+          break;
+        }
+      }
+      if (!ok) {
+        array.splice(0, i + 1);
+        i = 0;
+      }
+    }
+  }
+
+  function rebaseHist(hist, change) {
+    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
+    rebaseHistArray(hist.done, from, to, diff);
+    rebaseHistArray(hist.undone, from, to, diff);
+  }
+
+  // EVENT UTILITIES
+
+  // Due to the fact that we still support jurassic IE versions, some
+  // compatibility wrappers are needed.
+
+  var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
+    if (e.preventDefault) e.preventDefault();
+    else e.returnValue = false;
+  };
+  var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
+    if (e.stopPropagation) e.stopPropagation();
+    else e.cancelBubble = true;
+  };
+  function e_defaultPrevented(e) {
+    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
+  }
+  var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};
+
+  function e_target(e) {return e.target || e.srcElement;}
+  function e_button(e) {
+    var b = e.which;
+    if (b == null) {
+      if (e.button & 1) b = 1;
+      else if (e.button & 2) b = 3;
+      else if (e.button & 4) b = 2;
+    }
+    if (mac && e.ctrlKey && b == 1) b = 3;
+    return b;
+  }
+
+  // EVENT HANDLING
+
+  // Lightweight event framework. on/off also work on DOM nodes,
+  // registering native DOM handlers.
+
+  var on = CodeMirror.on = function(emitter, type, f) {
+    if (emitter.addEventListener)
+      emitter.addEventListener(type, f, false);
+    else if (emitter.attachEvent)
+      emitter.attachEvent("on" + type, f);
+    else {
+      var map = emitter._handlers || (emitter._handlers = {});
+      var arr = map[type] || (map[type] = []);
+      arr.push(f);
+    }
+  };
+
+  var noHandlers = []
+  function getHandlers(emitter, type, copy) {
+    var arr = emitter._handlers && emitter._handlers[type]
+    if (copy) return arr && arr.length > 0 ? arr.slice() : noHandlers
+    else return arr || noHandlers
+  }
+
+  var off = CodeMirror.off = function(emitter, type, f) {
+    if (emitter.removeEventListener)
+      emitter.removeEventListener(type, f, false);
+    else if (emitter.detachEvent)
+      emitter.detachEvent("on" + type, f);
+    else {
+      var handlers = getHandlers(emitter, type, false)
+      for (var i = 0; i < handlers.length; ++i)
+        if (handlers[i] == f) { handlers.splice(i, 1); break; }
+    }
+  };
+
+  var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
+    var handlers = getHandlers(emitter, type, true)
+    if (!handlers.length) return;
+    var args = Array.prototype.slice.call(arguments, 2);
+    for (var i = 0; i < handlers.length; ++i) handlers[i].apply(null, args);
+  };
+
+  var orphanDelayedCallbacks = null;
+
+  // Often, we want to signal events at a point where we are in the
+  // middle of some work, but don't want the handler to start calling
+  // other methods on the editor, which might be in an inconsistent
+  // state or simply not expect any other events to happen.
+  // signalLater looks whether there are any handlers, and schedules
+  // them to be executed when the last operation ends, or, if no
+  // operation is active, when a timeout fires.
+  function signalLater(emitter, type /*, values...*/) {
+    var arr = getHandlers(emitter, type, false)
+    if (!arr.length) return;
+    var args = Array.prototype.slice.call(arguments, 2), list;
+    if (operationGroup) {
+      list = operationGroup.delayedCallbacks;
+    } else if (orphanDelayedCallbacks) {
+      list = orphanDelayedCallbacks;
+    } else {
+      list = orphanDelayedCallbacks = [];
+      setTimeout(fireOrphanDelayed, 0);
+    }
+    function bnd(f) {return function(){f.apply(null, args);};};
+    for (var i = 0; i < arr.length; ++i)
+      list.push(bnd(arr[i]));
+  }
+
+  function fireOrphanDelayed() {
+    var delayed = orphanDelayedCallbacks;
+    orphanDelayedCallbacks = null;
+    for (var i = 0; i < delayed.length; ++i) delayed[i]();
+  }
+
+  // The DOM events that CodeMirror handles can be overridden by
+  // registering a (non-DOM) handler on the editor for the event name,
+  // and preventDefault-ing the event in that handler.
+  function signalDOMEvent(cm, e, override) {
+    if (typeof e == "string")
+      e = {type: e, preventDefault: function() { this.defaultPrevented = true; }};
+    signal(cm, override || e.type, cm, e);
+    return e_defaultPrevented(e) || e.codemirrorIgnore;
+  }
+
+  function signalCursorActivity(cm) {
+    var arr = cm._handlers && cm._handlers.cursorActivity;
+    if (!arr) return;
+    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
+    for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
+      set.push(arr[i]);
+  }
+
+  function hasHandler(emitter, type) {
+    return getHandlers(emitter, type).length > 0
+  }
+
+  // Add on and off methods to a constructor's prototype, to make
+  // registering events on such objects more convenient.
+  function eventMixin(ctor) {
+    ctor.prototype.on = function(type, f) {on(this, type, f);};
+    ctor.prototype.off = function(type, f) {off(this, type, f);};
+  }
+
+  // MISC UTILITIES
+
+  // Number of pixels added to scroller and sizer to hide scrollbar
+  var scrollerGap = 30;
+
+  // Returned or thrown by various protocols to signal 'I'm not
+  // handling this'.
+  var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
+
+  // Reused option objects for setSelection & friends
+  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
+
+  function Delayed() {this.id = null;}
+  Delayed.prototype.set = function(ms, f) {
+    clearTimeout(this.id);
+    this.id = setTimeout(f, ms);
+  };
+
+  // Counts the column offset in a string, taking tabs into account.
+  // Used mostly to find indentation.
+  var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
+    if (end == null) {
+      end = string.search(/[^\s\u00a0]/);
+      if (end == -1) end = string.length;
+    }
+    for (var i = startIndex || 0, n = startValue || 0;;) {
+      var nextTab = string.indexOf("\t", i);
+      if (nextTab < 0 || nextTab >= end)
+        return n + (end - i);
+      n += nextTab - i;
+      n += tabSize - (n % tabSize);
+      i = nextTab + 1;
+    }
+  };
+
+  // The inverse of countColumn -- find the offset that corresponds to
+  // a particular column.
+  var findColumn = CodeMirror.findColumn = function(string, goal, tabSize) {
+    for (var pos = 0, col = 0;;) {
+      var nextTab = string.indexOf("\t", pos);
+      if (nextTab == -1) nextTab = string.length;
+      var skipped = nextTab - pos;
+      if (nextTab == string.length || col + skipped >= goal)
+        return pos + Math.min(skipped, goal - col);
+      col += nextTab - pos;
+      col += tabSize - (col % tabSize);
+      pos = nextTab + 1;
+      if (col >= goal) return pos;
+    }
+  }
+
+  var spaceStrs = [""];
+  function spaceStr(n) {
+    while (spaceStrs.length <= n)
+      spaceStrs.push(lst(spaceStrs) + " ");
+    return spaceStrs[n];
+  }
+
+  function lst(arr) { return arr[arr.length-1]; }
+
+  var selectInput = function(node) { node.select(); };
+  if (ios) // Mobile Safari apparently has a bug where select() is broken.
+    selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
+  else if (ie) // Suppress mysterious IE10 errors
+    selectInput = function(node) { try { node.select(); } catch(_e) {} };
+
+  function indexOf(array, elt) {
+    for (var i = 0; i < array.length; ++i)
+      if (array[i] == elt) return i;
+    return -1;
+  }
+  function map(array, f) {
+    var out = [];
+    for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
+    return out;
+  }
+
+  function nothing() {}
+
+  function createObj(base, props) {
+    var inst;
+    if (Object.create) {
+      inst = Object.create(base);
+    } else {
+      nothing.prototype = base;
+      inst = new nothing();
+    }
+    if (props) copyObj(props, inst);
+    return inst;
+  };
+
+  function copyObj(obj, target, overwrite) {
+    if (!target) target = {};
+    for (var prop in obj)
+      if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+        target[prop] = obj[prop];
+    return target;
+  }
+
+  function bind(f) {
+    var args = Array.prototype.slice.call(arguments, 1);
+    return function(){return f.apply(null, args);};
+  }
+
+  var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
+  var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
+    return /\w/.test(ch) || ch > "\x80" &&
+      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
+  };
+  function isWordChar(ch, helper) {
+    if (!helper) return isWordCharBasic(ch);
+    if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
+    return helper.test(ch);
+  }
+
+  function isEmpty(obj) {
+    for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
+    return true;
+  }
+
+  // Extending unicode characters. A series of a non-extending char +
+  // any number of extending chars is treated as a single unit as far
+  // as editing and measuring is concerned. This is not fully correct,
+  // since some scripts/fonts/browsers also treat other configurations
+  // of code points as a group.
+  var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
+  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }
+
+  // DOM UTILITIES
+
+  function elt(tag, content, className, style) {
+    var e = document.createElement(tag);
+    if (className) e.className = className;
+    if (style) e.style.cssText = style;
+    if (typeof content == "string") e.appendChild(document.createTextNode(content));
+    else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
+    return e;
+  }
+
+  var range;
+  if (document.createRange) range = function(node, start, end, endNode) {
+    var r = document.createRange();
+    r.setEnd(endNode || node, end);
+    r.setStart(node, start);
+    return r;
+  };
+  else range = function(node, start, end) {
+    var r = document.body.createTextRange();
+    try { r.moveToElementText(node.parentNode); }
+    catch(e) { return r; }
+    r.collapse(true);
+    r.moveEnd("character", end);
+    r.moveStart("character", start);
+    return r;
+  };
+
+  function removeChildren(e) {
+    for (var count = e.childNodes.length; count > 0; --count)
+      e.removeChild(e.firstChild);
+    return e;
+  }
+
+  function removeChildrenAndAdd(parent, e) {
+    return removeChildren(parent).appendChild(e);
+  }
+
+  var contains = CodeMirror.contains = function(parent, child) {
+    if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+      child = child.parentNode;
+    if (parent.contains)
+      return parent.contains(child);
+    do {
+      if (child.nodeType == 11) child = child.host;
+      if (child == parent) return true;
+    } while (child = child.parentNode);
+  };
+
+  function activeElt() {
+    var activeElement = document.activeElement;
+    while (activeElement && activeElement.root && activeElement.root.activeElement)
+      activeElement = activeElement.root.activeElement;
+    return activeElement;
+  }
+  // Older versions of IE throws unspecified error when touching
+  // document.activeElement in some cases (during loading, in iframe)
+  if (ie && ie_version < 11) activeElt = function() {
+    try { return document.activeElement; }
+    catch(e) { return document.body; }
+  };
+
+  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); }
+  var rmClass = CodeMirror.rmClass = function(node, cls) {
+    var current = node.className;
+    var match = classTest(cls).exec(current);
+    if (match) {
+      var after = current.slice(match.index + match[0].length);
+      node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
+    }
+  };
+  var addClass = CodeMirror.addClass = function(node, cls) {
+    var current = node.className;
+    if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls;
+  };
+  function joinClasses(a, b) {
+    var as = a.split(" ");
+    for (var i = 0; i < as.length; i++)
+      if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
+    return b;
+  }
+
+  // WINDOW-WIDE EVENTS
+
+  // These must be handled carefully, because naively registering a
+  // handler for each editor will cause the editors to never be
+  // garbage collected.
+
+  function forEachCodeMirror(f) {
+    if (!document.body.getElementsByClassName) return;
+    var byClass = document.body.getElementsByClassName("CodeMirror");
+    for (var i = 0; i < byClass.length; i++) {
+      var cm = byClass[i].CodeMirror;
+      if (cm) f(cm);
+    }
+  }
+
+  var globalsRegistered = false;
+  function ensureGlobalHandlers() {
+    if (globalsRegistered) return;
+    registerGlobalHandlers();
+    globalsRegistered = true;
+  }
+  function registerGlobalHandlers() {
+    // When the window resizes, we need to refresh active editors.
+    var resizeTimer;
+    on(window, "resize", function() {
+      if (resizeTimer == null) resizeTimer = setTimeout(function() {
+        resizeTimer = null;
+        forEachCodeMirror(onResize);
+      }, 100);
+    });
+    // When the window loses focus, we want to show the editor as blurred
+    on(window, "blur", function() {
+      forEachCodeMirror(onBlur);
+    });
+  }
+
+  // FEATURE DETECTION
+
+  // Detect drag-and-drop
+  var dragAndDrop = function() {
+    // There is *some* kind of drag-and-drop support in IE6-8, but I
+    // couldn't get it to work yet.
+    if (ie && ie_version < 9) return false;
+    var div = elt('div');
+    return "draggable" in div || "dragDrop" in div;
+  }();
+
+  var zwspSupported;
+  function zeroWidthElement(measure) {
+    if (zwspSupported == null) {
+      var test = elt("span", "\u200b");
+      removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
+      if (measure.firstChild.offsetHeight != 0)
+        zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
+    }
+    var node = zwspSupported ? elt("span", "\u200b") :
+      elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
+    node.setAttribute("cm-text", "");
+    return node;
+  }
+
+  // Feature-detect IE's crummy client rect reporting for bidi text
+  var badBidiRects;
+  function hasBadBidiRects(measure) {
+    if (badBidiRects != null) return badBidiRects;
+    var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
+    var r0 = range(txt, 0, 1).getBoundingClientRect();
+    var r1 = range(txt, 1, 2).getBoundingClientRect();
+    removeChildren(measure);
+    if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
+    return badBidiRects = (r1.right - r0.right < 3);
+  }
+
+  // See if "".split is the broken IE version, if so, provide an
+  // alternative way to split lines.
+  var splitLinesAuto = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
+    var pos = 0, result = [], l = string.length;
+    while (pos <= l) {
+      var nl = string.indexOf("\n", pos);
+      if (nl == -1) nl = string.length;
+      var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
+      var rt = line.indexOf("\r");
+      if (rt != -1) {
+        result.push(line.slice(0, rt));
+        pos += rt + 1;
+      } else {
+        result.push(line);
+        pos = nl + 1;
+      }
+    }
+    return result;
+  } : function(string){return string.split(/\r\n?|\n/);};
+
+  var hasSelection = window.getSelection ? function(te) {
+    try { return te.selectionStart != te.selectionEnd; }
+    catch(e) { return false; }
+  } : function(te) {
+    try {var range = te.ownerDocument.selection.createRange();}
+    catch(e) {}
+    if (!range || range.parentElement() != te) return false;
+    return range.compareEndPoints("StartToEnd", range) != 0;
+  };
+
+  var hasCopyEvent = (function() {
+    var e = elt("div");
+    if ("oncopy" in e) return true;
+    e.setAttribute("oncopy", "return;");
+    return typeof e.oncopy == "function";
+  })();
+
+  var badZoomedRects = null;
+  function hasBadZoomedRects(measure) {
+    if (badZoomedRects != null) return badZoomedRects;
+    var node = removeChildrenAndAdd(measure, elt("span", "x"));
+    var normal = node.getBoundingClientRect();
+    var fromRange = range(node, 0, 1).getBoundingClientRect();
+    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
+  }
+
+  // KEY NAMES
+
+  var keyNames = CodeMirror.keyNames = {
+    3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+    19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+    36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+    46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+    106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
+    173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+    221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+    63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+  };
+  (function() {
+    // Number keys
+    for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
+    // Alphabetic keys
+    for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
+    // Function keys
+    for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
+  })();
+
+  // BIDI HELPERS
+
+  function iterateBidiSections(order, from, to, f) {
+    if (!order) return f(from, to, "ltr");
+    var found = false;
+    for (var i = 0; i < order.length; ++i) {
+      var part = order[i];
+      if (part.from < to && part.to > from || from == to && part.to == from) {
+        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
+        found = true;
+      }
+    }
+    if (!found) f(from, to, "ltr");
+  }
+
+  function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
+  function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
+
+  function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
+  function lineRight(line) {
+    var order = getOrder(line);
+    if (!order) return line.text.length;
+    return bidiRight(lst(order));
+  }
+
+  function lineStart(cm, lineN) {
+    var line = getLine(cm.doc, lineN);
+    var visual = visualLine(line);
+    if (visual != line) lineN = lineNo(visual);
+    var order = getOrder(visual);
+    var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
+    return Pos(lineN, ch);
+  }
+  function lineEnd(cm, lineN) {
+    var merged, line = getLine(cm.doc, lineN);
+    while (merged = collapsedSpanAtEnd(line)) {
+      line = merged.find(1, true).line;
+      lineN = null;
+    }
+    var order = getOrder(line);
+    var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
+    return Pos(lineN == null ? lineNo(line) : lineN, ch);
+  }
+  function lineStartSmart(cm, pos) {
+    var start = lineStart(cm, pos.line);
+    var line = getLine(cm.doc, start.line);
+    var order = getOrder(line);
+    if (!order || order[0].level == 0) {
+      var firstNonWS = Math.max(0, line.text.search(/\S/));
+      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
+      return Pos(start.line, inWS ? 0 : firstNonWS);
+    }
+    return start;
+  }
+
+  function compareBidiLevel(order, a, b) {
+    var linedir = order[0].level;
+    if (a == linedir) return true;
+    if (b == linedir) return false;
+    return a < b;
+  }
+  var bidiOther;
+  function getBidiPartAt(order, pos) {
+    bidiOther = null;
+    for (var i = 0, found; i < order.length; ++i) {
+      var cur = order[i];
+      if (cur.from < pos && cur.to > pos) return i;
+      if ((cur.from == pos || cur.to == pos)) {
+        if (found == null) {
+          found = i;
+        } else if (compareBidiLevel(order, cur.level, order[found].level)) {
+          if (cur.from != cur.to) bidiOther = found;
+          return i;
+        } else {
+          if (cur.from != cur.to) bidiOther = i;
+          return found;
+        }
+      }
+    }
+    return found;
+  }
+
+  function moveInLine(line, pos, dir, byUnit) {
+    if (!byUnit) return pos + dir;
+    do pos += dir;
+    while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
+    return pos;
+  }
+
+  // This is needed in order to move 'visually' through bi-directional
+  // text -- i.e., pressing left should make the cursor go left, even
+  // when in RTL text. The tricky part is the 'jumps', where RTL and
+  // LTR text touch each other. This often requires the cursor offset
+  // to move more than one unit, in order to visually move one unit.
+  function moveVisually(line, start, dir, byUnit) {
+    var bidi = getOrder(line);
+    if (!bidi) return moveLogically(line, start, dir, byUnit);
+    var pos = getBidiPartAt(bidi, start), part = bidi[pos];
+    var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
+
+    for (;;) {
+      if (target > part.from && target < part.to) return target;
+      if (target == part.from || target == part.to) {
+        if (getBidiPartAt(bidi, target) == pos) return target;
+        part = bidi[pos += dir];
+        return (dir > 0) == part.level % 2 ? part.to : part.from;
+      } else {
+        part = bidi[pos += dir];
+        if (!part) return null;
+        if ((dir > 0) == part.level % 2)
+          target = moveInLine(line, part.to, -1, byUnit);
+        else
+          target = moveInLine(line, part.from, 1, byUnit);
+      }
+    }
+  }
+
+  function moveLogically(line, start, dir, byUnit) {
+    var target = start + dir;
+    if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
+    return target < 0 || target > line.text.length ? null : target;
+  }
+
+  // Bidirectional ordering algorithm
+  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+  // that this (partially) implements.
+
+  // One-char codes used for character types:
+  // L (L):   Left-to-Right
+  // R (R):   Right-to-Left
+  // r (AL):  Right-to-Left Arabic
+  // 1 (EN):  European Number
+  // + (ES):  European Number Separator
+  // % (ET):  European Number Terminator
+  // n (AN):  Arabic Number
+  // , (CS):  Common Number Separator
+  // m (NSM): Non-Spacing Mark
+  // b (BN):  Boundary Neutral
+  // s (B):   Paragraph Separator
+  // t (S):   Segment Separator
+  // w (WS):  Whitespace
+  // N (ON):  Other Neutrals
+
+  // Returns null if characters are ordered as they appear
+  // (left-to-right), or an array of sections ({from, to, level}
+  // objects) in the order in which they occur visually.
+  var bidiOrdering = (function() {
+    // Character types for codepoints 0 to 0xff
+    var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
+    // Character types for codepoints 0x600 to 0x6ff
+    var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
+    function charType(code) {
+      if (code <= 0xf7) return lowTypes.charAt(code);
+      else if (0x590 <= code && code <= 0x5f4) return "R";
+      else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
+      else if (0x6ee <= code && code <= 0x8ac) return "r";
+      else if (0x2000 <= code && code <= 0x200b) return "w";
+      else if (code == 0x200c) return "b";
+      else return "L";
+    }
+
+    var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
+    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
+    // Browsers seem to always treat the boundaries of block elements as being L.
+    var outerType = "L";
+
+    function BidiSpan(level, from, to) {
+      this.level = level;
+      this.from = from; this.to = to;
+    }
+
+    return function(str) {
+      if (!bidiRE.test(str)) return false;
+      var len = str.length, types = [];
+      for (var i = 0, type; i < len; ++i)
+        types.push(type = charType(str.charCodeAt(i)));
+
+      // W1. Examine each non-spacing mark (NSM) in the level run, and
+      // change the type of the NSM to the type of the previous
+      // character. If the NSM is at the start of the level run, it will
+      // get the type of sor.
+      for (var i = 0, prev = outerType; i < len; ++i) {
+        var type = types[i];
+        if (type == "m") types[i] = prev;
+        else prev = type;
+      }
+
+      // W2. Search backwards from each instance of a European number
+      // until the first strong type (R, L, AL, or sor) is found. If an
+      // AL is found, change the type of the European number to Arabic
+      // number.
+      // W3. Change all ALs to R.
+      for (var i = 0, cur = outerType; i < len; ++i) {
+        var type = types[i];
+        if (type == "1" && cur == "r") types[i] = "n";
+        else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
+      }
+
+      // W4. A single European separator between two European numbers
+      // changes to a European number. A single common separator between
+      // two numbers of the same type changes to that type.
+      for (var i = 1, prev = types[0]; i < len - 1; ++i) {
+        var type = types[i];
+        if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
+        else if (type == "," && prev == types[i+1] &&
+                 (prev == "1" || prev == "n")) types[i] = prev;
+        prev = type;
+      }
+
+      // W5. A sequence of European terminators adjacent to European
+      // numbers changes to all European numbers.
+      // W6. Otherwise, separators and terminators change to Other
+      // Neutral.
+      for (var i = 0; i < len; ++i) {
+        var type = types[i];
+        if (type == ",") types[i] = "N";
+        else if (type == "%") {
+          for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
+          var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
+          for (var j = i; j < end; ++j) types[j] = replace;
+          i = end - 1;
+        }
+      }
+
+      // W7. Search backwards from each instance of a European number
+      // until the first strong type (R, L, or sor) is found. If an L is
+      // found, then change the type of the European number to L.
+      for (var i = 0, cur = outerType; i < len; ++i) {
+        var type = types[i];
+        if (cur == "L" && type == "1") types[i] = "L";
+        else if (isStrong.test(type)) cur = type;
+      }
+
+      // N1. A sequence of neutrals takes the direction of the
+      // surrounding strong text if the text on both sides has the same
+      // direction. European and Arabic numbers act as if they were R in
+      // terms of their influence on neutrals. Start-of-level-run (sor)
+      // and end-of-level-run (eor) are used at level run boundaries.
+      // N2. Any remaining neutrals take the embedding direction.
+      for (var i = 0; i < len; ++i) {
+        if (isNeutral.test(types[i])) {
+          for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
+          var before = (i ? types[i-1] : outerType) == "L";
+          var after = (end < len ? types[end] : outerType) == "L";
+          var replace = before || after ? "L" : "R";
+          for (var j = i; j < end; ++j) types[j] = replace;
+          i = end - 1;
+        }
+      }
+
+      // Here we depart from the documented algorithm, in order to avoid
+      // building up an actual levels array. Since there are only three
+      // levels (0, 1, 2) in an implementation that doesn't take
+      // explicit embedding into account, we can build up the order on
+      // the fly, without following the level-based algorithm.
+      var order = [], m;
+      for (var i = 0; i < len;) {
+        if (countsAsLeft.test(types[i])) {
+          var start = i;
+          for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
+          order.push(new BidiSpan(0, start, i));
+        } else {
+          var pos = i, at = order.length;
+          for (++i; i < len && types[i] != "L"; ++i) {}
+          for (var j = pos; j < i;) {
+            if (countsAsNum.test(types[j])) {
+              if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
+              var nstart = j;
+              for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
+              order.splice(at, 0, new BidiSpan(2, nstart, j));
+              pos = j;
+            } else ++j;
+          }
+          if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
+        }
+      }
+      if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+        order[0].from = m[0].length;
+        order.unshift(new BidiSpan(0, 0, m[0].length));
+      }
+      if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+        lst(order).to -= m[0].length;
+        order.push(new BidiSpan(0, len - m[0].length, len));
+      }
+      if (order[0].level == 2)
+        order.unshift(new BidiSpan(1, order[0].to, order[0].to));
+      if (order[0].level != lst(order).level)
+        order.push(new BidiSpan(order[0].level, len, len));
+
+      return order;
+    };
+  })();
+
+  // THE END
+
+  CodeMirror.version = "5.17.0";
+
+  return CodeMirror;
+});
+
+
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// TODO actually recognize syntax of TypeScript constructs
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+function expressionAllowed(stream, state, backUp) {
+  return /^(?:operator|sof|keyword c|case|new|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
+    (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
+}
+
+CodeMirror.defineMode("javascript", function(config, parserConfig) {
+  var indentUnit = config.indentUnit;
+  var statementIndent = parserConfig.statementIndent;
+  var jsonldMode = parserConfig.jsonld;
+  var jsonMode = parserConfig.json || jsonldMode;
+  var isTS = parserConfig.typescript;
+  var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
+
+  // Tokenizer
+
+  var keywords = function(){
+    function kw(type) {return {type: type, style: "keyword"};}
+    var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
+    var operator = kw("operator"), atom = {type: "atom", style: "atom"};
+
+    var jsKeywords = {
+      "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
+      "return": C, "break": C, "continue": C, "new": kw("new"), "delete": C, "throw": C, "debugger": C,
+      "var": kw("var"), "const": kw("var"), "let": kw("var"),
+      "function": kw("function"), "catch": kw("catch"),
+      "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
+      "in": operator, "typeof": operator, "instanceof": operator,
+      "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
+      "this": kw("this"), "class": kw("class"), "super": kw("atom"),
+      "yield": C, "export": kw("export"), "import": kw("import"), "extends": C,
+      "await": C, "async": kw("async")
+    };
+
+    // Extend the 'normal' keywords with the TypeScript language extensions
+    if (isTS) {
+      var type = {type: "variable", style: "variable-3"};
+      var tsKeywords = {
+        // object-like things
+        "interface": kw("class"),
+        "implements": C,
+        "namespace": C,
+        "module": kw("module"),
+        "enum": kw("module"),
+
+        // scope modifiers
+        "public": kw("modifier"),
+        "private": kw("modifier"),
+        "protected": kw("modifier"),
+        "abstract": kw("modifier"),
+
+        // operators
+        "as": operator,
+
+        // types
+        "string": type, "number": type, "boolean": type, "any": type
+      };
+
+      for (var attr in tsKeywords) {
+        jsKeywords[attr] = tsKeywords[attr];
+      }
+    }
+
+    return jsKeywords;
+  }();
+
+  var isOperatorChar = /[+\-*&%=<>!?|~^]/;
+  var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
+
+  function readRegexp(stream) {
+    var escaped = false, next, inSet = false;
+    while ((next = stream.next()) != null) {
+      if (!escaped) {
+        if (next == "/" && !inSet) return;
+        if (next == "[") inSet = true;
+        else if (inSet && next == "]") inSet = false;
+      }
+      escaped = !escaped && next == "\\";
+    }
+  }
+
+  // Used as scratch variables to communicate multiple values without
+  // consing up tons of objects.
+  var type, content;
+  function ret(tp, style, cont) {
+    type = tp; content = cont;
+    return style;
+  }
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
+      return ret("number", "number");
+    } else if (ch == "." && stream.match("..")) {
+      return ret("spread", "meta");
+    } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      return ret(ch);
+    } else if (ch == "=" && stream.eat(">")) {
+      return ret("=>", "operator");
+    } else if (ch == "0" && stream.eat(/x/i)) {
+      stream.eatWhile(/[\da-f]/i);
+      return ret("number", "number");
+    } else if (ch == "0" && stream.eat(/o/i)) {
+      stream.eatWhile(/[0-7]/i);
+      return ret("number", "number");
+    } else if (ch == "0" && stream.eat(/b/i)) {
+      stream.eatWhile(/[01]/i);
+      return ret("number", "number");
+    } else if (/\d/.test(ch)) {
+      stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
+      return ret("number", "number");
+    } else if (ch == "/") {
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      } else if (stream.eat("/")) {
+        stream.skipToEnd();
+        return ret("comment", "comment");
+      } else if (expressionAllowed(stream, state, 1)) {
+        readRegexp(stream);
+        stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/);
+        return ret("regexp", "string-2");
+      } else {
+        stream.eatWhile(isOperatorChar);
+        return ret("operator", "operator", stream.current());
+      }
+    } else if (ch == "`") {
+      state.tokenize = tokenQuasi;
+      return tokenQuasi(stream, state);
+    } else if (ch == "#") {
+      stream.skipToEnd();
+      return ret("error", "error");
+    } else if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return ret("operator", "operator", stream.current());
+    } else if (wordRE.test(ch)) {
+      stream.eatWhile(wordRE);
+      var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
+      return (known && state.lastType != ".") ? ret(known.type, known.style, word) :
+                     ret("variable", "variable", word);
+    }
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next;
+      if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
+        state.tokenize = tokenBase;
+        return ret("jsonld-keyword", "meta");
+      }
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) break;
+        escaped = !escaped && next == "\\";
+      }
+      if (!escaped) state.tokenize = tokenBase;
+      return ret("string", "string");
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("comment", "comment");
+  }
+
+  function tokenQuasi(stream, state) {
+    var escaped = false, next;
+    while ((next = stream.next()) != null) {
+      if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      escaped = !escaped && next == "\\";
+    }
+    return ret("quasi", "string-2", stream.current());
+  }
+
+  var brackets = "([{}])";
+  // This is a crude lookahead trick to try and notice that we're
+  // parsing the argument patterns for a fat-arrow function before we
+  // actually hit the arrow token. It only works if the arrow is on
+  // the same line as the arguments and there's no strange noise
+  // (comments) in between. Fallback is to only notice when we hit the
+  // arrow, and not declare the arguments as locals for the arrow
+  // body.
+  function findFatArrow(stream, state) {
+    if (state.fatArrowAt) state.fatArrowAt = null;
+    var arrow = stream.string.indexOf("=>", stream.start);
+    if (arrow < 0) return;
+
+    var depth = 0, sawSomething = false;
+    for (var pos = arrow - 1; pos >= 0; --pos) {
+      var ch = stream.string.charAt(pos);
+      var bracket = brackets.indexOf(ch);
+      if (bracket >= 0 && bracket < 3) {
+        if (!depth) { ++pos; break; }
+        if (--depth == 0) break;
+      } else if (bracket >= 3 && bracket < 6) {
+        ++depth;
+      } else if (wordRE.test(ch)) {
+        sawSomething = true;
+      } else if (/["'\/]/.test(ch)) {
+        return;
+      } else if (sawSomething && !depth) {
+        ++pos;
+        break;
+      }
+    }
+    if (sawSomething && !depth) state.fatArrowAt = pos;
+  }
+
+  // Parser
+
+  var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
+
+  function JSLexical(indented, column, type, align, prev, info) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.prev = prev;
+    this.info = info;
+    if (align != null) this.align = align;
+  }
+
+  function inScope(state, varname) {
+    for (var v = state.localVars; v; v = v.next)
+      if (v.name == varname) return true;
+    for (var cx = state.context; cx; cx = cx.prev) {
+      for (var v = cx.vars; v; v = v.next)
+        if (v.name == varname) return true;
+    }
+  }
+
+  function parseJS(state, style, type, content, stream) {
+    var cc = state.cc;
+    // Communicate our context to the combinators.
+    // (Less wasteful than consing up a hundred closures on every call.)
+    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
+
+    if (!state.lexical.hasOwnProperty("align"))
+      state.lexical.align = true;
+
+    while(true) {
+      var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
+      if (combinator(type, content)) {
+        while(cc.length && cc[cc.length - 1].lex)
+          cc.pop()();
+        if (cx.marked) return cx.marked;
+        if (type == "variable" && inScope(state, content)) return "variable-2";
+        return style;
+      }
+    }
+  }
+
+  // Combinator utils
+
+  var cx = {state: null, column: null, marked: null, cc: null};
+  function pass() {
+    for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
+  }
+  function cont() {
+    pass.apply(null, arguments);
+    return true;
+  }
+  function register(varname) {
+    function inList(list) {
+      for (var v = list; v; v = v.next)
+        if (v.name == varname) return true;
+      return false;
+    }
+    var state = cx.state;
+    cx.marked = "def";
+    if (state.context) {
+      if (inList(state.localVars)) return;
+      state.localVars = {name: varname, next: state.localVars};
+    } else {
+      if (inList(state.globalVars)) return;
+      if (parserConfig.globalVars)
+        state.globalVars = {name: varname, next: state.globalVars};
+    }
+  }
+
+  // Combinators
+
+  var defaultVars = {name: "this", next: {name: "arguments"}};
+  function pushcontext() {
+    cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
+    cx.state.localVars = defaultVars;
+  }
+  function popcontext() {
+    cx.state.localVars = cx.state.context.vars;
+    cx.state.context = cx.state.context.prev;
+  }
+  function pushlex(type, info) {
+    var result = function() {
+      var state = cx.state, indent = state.indented;
+      if (state.lexical.type == "stat") indent = state.lexical.indented;
+      else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
+        indent = outer.indented;
+      state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
+    };
+    result.lex = true;
+    return result;
+  }
+  function poplex() {
+    var state = cx.state;
+    if (state.lexical.prev) {
+      if (state.lexical.type == ")")
+        state.indented = state.lexical.indented;
+      state.lexical = state.lexical.prev;
+    }
+  }
+  poplex.lex = true;
+
+  function expect(wanted) {
+    function exp(type) {
+      if (type == wanted) return cont();
+      else if (wanted == ";") return pass();
+      else return cont(exp);
+    };
+    return exp;
+  }
+
+  function statement(type, value) {
+    if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex);
+    if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
+    if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
+    if (type == "{") return cont(pushlex("}"), block, poplex);
+    if (type == ";") return cont();
+    if (type == "if") {
+      if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
+        cx.state.cc.pop()();
+      return cont(pushlex("form"), expression, statement, poplex, maybeelse);
+    }
+    if (type == "function") return cont(functiondef);
+    if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
+    if (type == "variable") return cont(pushlex("stat"), maybelabel);
+    if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
+                                      block, poplex, poplex);
+    if (type == "case") return cont(expression, expect(":"));
+    if (type == "default") return cont(expect(":"));
+    if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
+                                     statement, poplex, popcontext);
+    if (type == "class") return cont(pushlex("form"), className, poplex);
+    if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
+    if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
+    if (type == "module") return cont(pushlex("form"), pattern, pushlex("}"), expect("{"), block, poplex, poplex)
+    if (type == "async") return cont(statement)
+    return pass(pushlex("stat"), expression, expect(";"), poplex);
+  }
+  function expression(type) {
+    return expressionInner(type, false);
+  }
+  function expressionNoComma(type) {
+    return expressionInner(type, true);
+  }
+  function expressionInner(type, noComma) {
+    if (cx.state.fatArrowAt == cx.stream.start) {
+      var body = noComma ? arrowBodyNoComma : arrowBody;
+      if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext);
+      else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
+    }
+
+    var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
+    if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
+    if (type == "function") return cont(functiondef, maybeop);
+    if (type == "keyword c" || type == "async") return cont(noComma ? maybeexpressionNoComma : maybeexpression);
+    if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
+    if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
+    if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
+    if (type == "{") return contCommasep(objprop, "}", null, maybeop);
+    if (type == "quasi") return pass(quasi, maybeop);
+    if (type == "new") return cont(maybeTarget(noComma));
+    return cont();
+  }
+  function maybeexpression(type) {
+    if (type.match(/[;\}\)\],]/)) return pass();
+    return pass(expression);
+  }
+  function maybeexpressionNoComma(type) {
+    if (type.match(/[;\}\)\],]/)) return pass();
+    return pass(expressionNoComma);
+  }
+
+  function maybeoperatorComma(type, value) {
+    if (type == ",") return cont(expression);
+    return maybeoperatorNoComma(type, value, false);
+  }
+  function maybeoperatorNoComma(type, value, noComma) {
+    var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
+    var expr = noComma == false ? expression : expressionNoComma;
+    if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
+    if (type == "operator") {
+      if (/\+\+|--/.test(value)) return cont(me);
+      if (value == "?") return cont(expression, expect(":"), expr);
+      return cont(expr);
+    }
+    if (type == "quasi") { return pass(quasi, me); }
+    if (type == ";") return;
+    if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
+    if (type == ".") return cont(property, me);
+    if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
+  }
+  function quasi(type, value) {
+    if (type != "quasi") return pass();
+    if (value.slice(value.length - 2) != "${") return cont(quasi);
+    return cont(expression, continueQuasi);
+  }
+  function continueQuasi(type) {
+    if (type == "}") {
+      cx.marked = "string-2";
+      cx.state.tokenize = tokenQuasi;
+      return cont(quasi);
+    }
+  }
+  function arrowBody(type) {
+    findFatArrow(cx.stream, cx.state);
+    return pass(type == "{" ? statement : expression);
+  }
+  function arrowBodyNoComma(type) {
+    findFatArrow(cx.stream, cx.state);
+    return pass(type == "{" ? statement : expressionNoComma);
+  }
+  function maybeTarget(noComma) {
+    return function(type) {
+      if (type == ".") return cont(noComma ? targetNoComma : target);
+      else return pass(noComma ? expressionNoComma : expression);
+    };
+  }
+  function target(_, value) {
+    if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); }
+  }
+  function targetNoComma(_, value) {
+    if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); }
+  }
+  function maybelabel(type) {
+    if (type == ":") return cont(poplex, statement);
+    return pass(maybeoperatorComma, expect(";"), poplex);
+  }
+  function property(type) {
+    if (type == "variable") {cx.marked = "property"; return cont();}
+  }
+  function objprop(type, value) {
+    if (type == "async") return cont(objprop);
+    if (type == "variable" || cx.style == "keyword") {
+      cx.marked = "property";
+      if (value == "get" || value == "set") return cont(getterSetter);
+      return cont(afterprop);
+    } else if (type == "number" || type == "string") {
+      cx.marked = jsonldMode ? "property" : (cx.style + " property");
+      return cont(afterprop);
+    } else if (type == "jsonld-keyword") {
+      return cont(afterprop);
+    } else if (type == "modifier") {
+      return cont(objprop)
+    } else if (type == "[") {
+      return cont(expression, expect("]"), afterprop);
+    } else if (type == "spread") {
+      return cont(expression);
+    }
+  }
+  function getterSetter(type) {
+    if (type != "variable") return pass(afterprop);
+    cx.marked = "property";
+    return cont(functiondef);
+  }
+  function afterprop(type) {
+    if (type == ":") return cont(expressionNoComma);
+    if (type == "(") return pass(functiondef);
+  }
+  function commasep(what, end) {
+    function proceed(type, value) {
+      if (type == ",") {
+        var lex = cx.state.lexical;
+        if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
+        return cont(function(type, value) {
+          if (type == end || value == end) return pass()
+          return pass(what)
+        }, proceed);
+      }
+      if (type == end || value == end) return cont();
+      return cont(expect(end));
+    }
+    return function(type, value) {
+      if (type == end || value == end) return cont();
+      return pass(what, proceed);
+    };
+  }
+  function contCommasep(what, end, info) {
+    for (var i = 3; i < arguments.length; i++)
+      cx.cc.push(arguments[i]);
+    return cont(pushlex(end, info), commasep(what, end), poplex);
+  }
+  function block(type) {
+    if (type == "}") return cont();
+    return pass(statement, block);
+  }
+  function maybetype(type) {
+    if (isTS && type == ":") return cont(typeexpr);
+  }
+  function maybedefault(_, value) {
+    if (value == "=") return cont(expressionNoComma);
+  }
+  function typeexpr(type) {
+    if (type == "variable") {cx.marked = "variable-3"; return cont(afterType);}
+  }
+  function afterType(type, value) {
+    if (value == "<") return cont(commasep(typeexpr, ">"), afterType)
+    if (type == "[") return cont(expect("]"), afterType)
+  }
+  function vardef() {
+    return pass(pattern, maybetype, maybeAssign, vardefCont);
+  }
+  function pattern(type, value) {
+    if (type == "modifier") return cont(pattern)
+    if (type == "variable") { register(value); return cont(); }
+    if (type == "spread") return cont(pattern);
+    if (type == "[") return contCommasep(pattern, "]");
+    if (type == "{") return contCommasep(proppattern, "}");
+  }
+  function proppattern(type, value) {
+    if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
+      register(value);
+      return cont(maybeAssign);
+    }
+    if (type == "variable") cx.marked = "property";
+    if (type == "spread") return cont(pattern);
+    if (type == "}") return pass();
+    return cont(expect(":"), pattern, maybeAssign);
+  }
+  function maybeAssign(_type, value) {
+    if (value == "=") return cont(expressionNoComma);
+  }
+  function vardefCont(type) {
+    if (type == ",") return cont(vardef);
+  }
+  function maybeelse(type, value) {
+    if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
+  }
+  function forspec(type) {
+    if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
+  }
+  function forspec1(type) {
+    if (type == "var") return cont(vardef, expect(";"), forspec2);
+    if (type == ";") return cont(forspec2);
+    if (type == "variable") return cont(formaybeinof);
+    return pass(expression, expect(";"), forspec2);
+  }
+  function formaybeinof(_type, value) {
+    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
+    return cont(maybeoperatorComma, forspec2);
+  }
+  function forspec2(type, value) {
+    if (type == ";") return cont(forspec3);
+    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
+    return pass(expression, expect(";"), forspec3);
+  }
+  function forspec3(type) {
+    if (type != ")") cont(expression);
+  }
+  function functiondef(type, value) {
+    if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
+    if (type == "variable") {register(value); return cont(functiondef);}
+    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, maybetype, statement, popcontext);
+  }
+  function funarg(type) {
+    if (type == "spread") return cont(funarg);
+    return pass(pattern, maybetype, maybedefault);
+  }
+  function className(type, value) {
+    if (type == "variable") {register(value); return cont(classNameAfter);}
+  }
+  function classNameAfter(type, value) {
+    if (value == "extends") return cont(expression, classNameAfter);
+    if (type == "{") return cont(pushlex("}"), classBody, poplex);
+  }
+  function classBody(type, value) {
+    if (type == "variable" || cx.style == "keyword") {
+      if (value == "static") {
+        cx.marked = "keyword";
+        return cont(classBody);
+      }
+      cx.marked = "property";
+      if (value == "get" || value == "set") return cont(classGetterSetter, functiondef, classBody);
+      return cont(functiondef, classBody);
+    }
+    if (value == "*") {
+      cx.marked = "keyword";
+      return cont(classBody);
+    }
+    if (type == ";") return cont(classBody);
+    if (type == "}") return cont();
+  }
+  function classGetterSetter(type) {
+    if (type != "variable") return pass();
+    cx.marked = "property";
+    return cont();
+  }
+  function afterExport(_type, value) {
+    if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
+    if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
+    return pass(statement);
+  }
+  function afterImport(type) {
+    if (type == "string") return cont();
+    return pass(importSpec, maybeFrom);
+  }
+  function importSpec(type, value) {
+    if (type == "{") return contCommasep(importSpec, "}");
+    if (type == "variable") register(value);
+    if (value == "*") cx.marked = "keyword";
+    return cont(maybeAs);
+  }
+  function maybeAs(_type, value) {
+    if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
+  }
+  function maybeFrom(_type, value) {
+    if (value == "from") { cx.marked = "keyword"; return cont(expression); }
+  }
+  function arrayLiteral(type) {
+    if (type == "]") return cont();
+    return pass(expressionNoComma, commasep(expressionNoComma, "]"));
+  }
+
+  function isContinuedStatement(state, textAfter) {
+    return state.lastType == "operator" || state.lastType == "," ||
+      isOperatorChar.test(textAfter.charAt(0)) ||
+      /[,.]/.test(textAfter.charAt(0));
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      var state = {
+        tokenize: tokenBase,
+        lastType: "sof",
+        cc: [],
+        lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
+        localVars: parserConfig.localVars,
+        context: parserConfig.localVars && {vars: parserConfig.localVars},
+        indented: basecolumn || 0
+      };
+      if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
+        state.globalVars = parserConfig.globalVars;
+      return state;
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (!state.lexical.hasOwnProperty("align"))
+          state.lexical.align = false;
+        state.indented = stream.indentation();
+        findFatArrow(stream, state);
+      }
+      if (state.tokenize != tokenComment && stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      if (type == "comment") return style;
+      state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
+      return parseJS(state, style, type, content, stream);
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize == tokenComment) return CodeMirror.Pass;
+      if (state.tokenize != tokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
+      // Kludge to prevent 'maybelse' from blocking lexical scope pops
+      if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
+        var c = state.cc[i];
+        if (c == poplex) lexical = lexical.prev;
+        else if (c != maybeelse) break;
+      }
+      if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
+      if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
+        lexical = lexical.prev;
+      var type = lexical.type, closing = firstChar == type;
+
+      if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0);
+      else if (type == "form" && firstChar == "{") return lexical.indented;
+      else if (type == "form") return lexical.indented + indentUnit;
+      else if (type == "stat")
+        return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
+      else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
+        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
+      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
+      else return lexical.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
+    blockCommentStart: jsonMode ? null : "/*",
+    blockCommentEnd: jsonMode ? null : "*/",
+    lineComment: jsonMode ? null : "//",
+    fold: "brace",
+    closeBrackets: "()[]{}''\"\"``",
+
+    helperType: jsonMode ? "json" : "javascript",
+    jsonldMode: jsonldMode,
+    jsonMode: jsonMode,
+
+    expressionAllowed: expressionAllowed,
+    skipExpression: function(state) {
+      var top = state.cc[state.cc.length - 1]
+      if (top == expression || top == expressionNoComma) state.cc.pop()
+    }
+  };
+});
+
+CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
+
+CodeMirror.defineMIME("text/javascript", "javascript");
+CodeMirror.defineMIME("text/ecmascript", "javascript");
+CodeMirror.defineMIME("application/javascript", "javascript");
+CodeMirror.defineMIME("application/x-javascript", "javascript");
+CodeMirror.defineMIME("application/ecmascript", "javascript");
+CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
+CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
+CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
+
+});
diff --git a/game/game.js b/game/game.js
index 4a47923e2..b8fb6110c 100755
--- a/game/game.js
+++ b/game/game.js
@@ -22485,20 +22485,29 @@
                                     node.textarea.value=node.code;
                                 }
                                 else{
-                                    var id=editor.id;
                                     var aceReady=function(){
                                         ui.window.appendChild(node);
-                                        var editor=window.ace.edit(id);
-                                        editor.$blockScrolling=Infinity;
-                                        editor.setTheme("ace/theme/chrome");
-                                        editor.getSession().setUseWorker(false);
-                                        editor.getSession().setMode("ace/mode/javascript");
-                                        node.aced=true;
-                                        node.editor=editor;
-                                        editor.setValue(node.code,1);
+                                        // var editor=window.ace.edit(id);
+                                        // editor.$blockScrolling=Infinity;
+                                        // editor.setTheme("ace/theme/chrome");
+                                        // editor.getSession().setUseWorker(false);
+                                        // editor.getSession().setMode("ace/mode/javascript");
+                                        // node.aced=true;
+                                        // node.editor=editor;
+                                        // editor.setValue(node.code,1);
+
+                                        var myCodeMirror = CodeMirror(editor, {
+                                            value:node.code,
+                                            mode:"javascript",
+                                            lineWrapping:true,
+                                            lineNumbers:true,
+                                            indentWithTabs:true,
+                                            theme:'mdn-like'
+                                        });
                                     }
-                                    if(!window.ace){
-                                        lib.init.js('game','ace',aceReady);
+                                    if(!window.CodeMirror){
+                                        lib.init.js('game','codemirror',aceReady);
+                                        lib.init.css('layout/default','codemirror')
                                     }
                                     else{
                                         aceReady();
@@ -22531,7 +22540,7 @@
                                 delete window.saveNonameInput;
                             };
                             var saveConfig=ui.create.div('.editbutton','保存',editorpage,saveInput);
-                            var editor=ui.create.div('#editor-card',editorpage);
+                            var editor=ui.create.div(editorpage);
                             container.code='{\n\ttype:"basic",\n\tenable:true,\n\tfilterTarget:true,\n\tcontent:function(){\n\t\ttarget.draw()\n\t},\n\tai:{\n\t\torder:1,\n\t\tresult:{\n\t\t\ttarget:1\n\t\t}\n\t}\n}';
 
                             ui.create.div('.menubutton.large.new_card','创建卡牌',newCard,function(){
@@ -31291,6 +31300,9 @@
     				}
     			}
     			else if(e.keyCode==83&&(e.ctrlKey||e.metaKey)){
+                    if(window.saveNonameInput){
+                        window.saveNonameInput();
+                    }
                     e.preventDefault();
                     e.stopPropagation();
                     return false;
diff --git a/layout/default/codemirror.css b/layout/default/codemirror.css
new file mode 100644
index 000000000..af3e86a97
--- /dev/null
+++ b/layout/default/codemirror.css
@@ -0,0 +1,406 @@
+/* BASICS */
+
+.CodeMirror {
+  /* Set height, width, borders, and global font properties here */
+  width: 100%;
+  height: 100%;
+  color: black;
+}
+.CodeMirror div{
+    display: block;
+    text-shadow: none;
+    transition: all 0s;
+    position: static;
+}
+
+/* PADDING */
+
+.CodeMirror-lines {
+  padding: 4px 0; /* Vertical padding around content */
+}
+.CodeMirror pre {
+  padding: 0 4px; /* Horizontal padding of content */
+}
+
+.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+  background-color: white; /* The little square between H and V scrollbars */
+}
+
+/* GUTTER */
+
+.CodeMirror-gutters {
+  border-right: 1px solid #ddd;
+  background-color: #f7f7f7;
+  white-space: nowrap;
+}
+.CodeMirror-linenumbers {}
+.CodeMirror-linenumber {
+  padding: 0 3px 0 5px;
+  min-width: 20px;
+  text-align: right;
+  color: #999;
+  white-space: nowrap;
+}
+
+.CodeMirror-guttermarker { color: black; }
+.CodeMirror-guttermarker-subtle { color: #999; }
+
+/* CURSOR */
+
+.CodeMirror-cursor {
+  border-left: 1px solid black;
+  border-right: none;
+  width: 0;
+}
+/* Shown when moving in bi-directional text */
+.CodeMirror div.CodeMirror-secondarycursor {
+  border-left: 1px solid silver;
+}
+.cm-fat-cursor .CodeMirror-cursor {
+  width: auto;
+  border: 0 !important;
+  background: #7e7;
+}
+.cm-fat-cursor div.CodeMirror-cursors {
+  z-index: 1;
+}
+
+.cm-animate-fat-cursor {
+  width: auto;
+  border: 0;
+  -webkit-animation: blink 1.06s steps(1) infinite;
+  -moz-animation: blink 1.06s steps(1) infinite;
+  animation: blink 1.06s steps(1) infinite;
+  background-color: #7e7;
+}
+@-moz-keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+@-webkit-keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+@keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+
+/* Can style cursor different in overwrite (non-insert) mode */
+.CodeMirror-overwrite .CodeMirror-cursor {}
+
+.cm-tab { display: inline-block; text-decoration: inherit; }
+
+.CodeMirror .CodeMirror-rulers {
+  position: absolute;
+  left: 0; right: 0; top: -50px; bottom: -20px;
+  overflow: hidden;
+}
+.CodeMirror .CodeMirror-ruler {
+  border-left: 1px solid #ccc;
+  top: 0; bottom: 0;
+  position: absolute;
+}
+
+/* DEFAULT THEME */
+
+.cm-s-default .cm-header {color: blue;}
+.cm-s-default .cm-quote {color: #090;}
+.cm-negative {color: #d44;}
+.cm-positive {color: #292;}
+.cm-header, .cm-strong {font-weight: bold;}
+.cm-em {font-style: italic;}
+.cm-link {text-decoration: underline;}
+.cm-strikethrough {text-decoration: line-through;}
+
+.cm-s-default .cm-keyword {color: #708;}
+.cm-s-default .cm-atom {color: #219;}
+.cm-s-default .cm-number {color: #164;}
+.cm-s-default .cm-def {color: #00f;}
+.cm-s-default .cm-variable,
+.cm-s-default .cm-punctuation,
+.cm-s-default .cm-property,
+.cm-s-default .cm-operator {}
+.cm-s-default .cm-variable-2 {color: #05a;}
+.cm-s-default .cm-variable-3 {color: #085;}
+.cm-s-default .cm-comment {color: #a50;}
+.cm-s-default .cm-string {color: #a11;}
+.cm-s-default .cm-string-2 {color: #f50;}
+.cm-s-default .cm-meta {color: #555;}
+.cm-s-default .cm-qualifier {color: #555;}
+.cm-s-default .cm-builtin {color: #30a;}
+.cm-s-default .cm-bracket {color: #997;}
+.cm-s-default .cm-tag {color: #170;}
+.cm-s-default .cm-attribute {color: #00c;}
+.cm-s-default .cm-hr {color: #999;}
+.cm-s-default .cm-link {color: #00c;}
+
+.cm-s-default .cm-error {color: #f00;}
+.cm-invalidchar {color: #f00;}
+
+.CodeMirror-composing { border-bottom: 2px solid; }
+
+/* Default styles for common addons */
+
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
+.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
+.CodeMirror-activeline-background {background: #e8f2ff;}
+
+/* STOP */
+
+/* The rest of this file contains styles related to the mechanics of
+   the editor. You probably shouldn't touch them. */
+
+.CodeMirror {
+  position: relative;
+  overflow: hidden;
+  background: white;
+}
+
+.CodeMirror .CodeMirror-scroll {
+  overflow: scroll !important; /* Things will break if this is overridden */
+  /* 30px is the magic margin used to hide the element's real scrollbars */
+  /* See overflow: hidden in .CodeMirror */
+  margin-bottom: -30px; margin-right: -30px;
+  padding-bottom: 30px;
+  height: 100%;
+  outline: none; /* Prevent dragging from highlighting the element */
+  position: relative;
+}
+.CodeMirror .CodeMirror-sizer {
+  position: relative;
+  border-right: 30px solid transparent;
+}
+
+/* The fake, visible scrollbars. Used to force redraw during scrolling
+   before actual scrolling happens, thus preventing shaking and
+   flickering artifacts. */
+.CodeMirror .CodeMirror-vscrollbar, .CodeMirror .CodeMirror-hscrollbar, .CodeMirror .CodeMirror-scrollbar-filler, .CodeMirror .CodeMirror-gutter-filler {
+  position: absolute;
+  z-index: 6;
+  display: none;
+}
+.CodeMirror-vscrollbar {
+  right: 0; top: 0;
+  overflow-x: hidden;
+  overflow-y: scroll;
+}
+.CodeMirror-hscrollbar {
+  bottom: 0; left: 0;
+  overflow-y: hidden;
+  overflow-x: scroll;
+}
+.CodeMirror-scrollbar-filler {
+  right: 0; bottom: 0;
+}
+.CodeMirror-gutter-filler {
+  left: 0; bottom: 0;
+}
+
+.CodeMirror .CodeMirror-gutters {
+  position: absolute; left: 0; top: 0;
+  min-height: 100%;
+  z-index: 3;
+}
+.CodeMirror-gutter {
+  white-space: normal;
+  height: 100%;
+  display: inline-block;
+  vertical-align: top;
+  margin-bottom: -30px;
+  /* Hack to make IE7 behave */
+  *zoom:1;
+  *display:inline;
+}
+.CodeMirror .CodeMirror-gutter-wrapper {
+  position: absolute;
+  z-index: 4;
+  background: none !important;
+  border: none !important;
+}
+.CodeMirror .CodeMirror-gutter-background {
+  position: absolute;
+  top: 0; bottom: 0;
+  z-index: 4;
+}
+.CodeMirror .CodeMirror-gutter-elt {
+  position: absolute;
+  cursor: default;
+  z-index: 4;
+}
+.CodeMirror-gutter-wrapper {
+  -webkit-user-select: none;
+  -moz-user-select: none;
+  user-select: none;
+}
+
+.CodeMirror-lines {
+  cursor: text;
+  min-height: 1px; /* prevents collapsing before first draw */
+}
+.CodeMirror pre {
+  /* Reset some styles that the rest of the page might have set */
+  -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
+  border-width: 0;
+  background: transparent;
+  font-family: inherit;
+  font-size: inherit;
+  margin: 0;
+  white-space: pre;
+  word-wrap: normal;
+  line-height: inherit;
+  color: inherit;
+  z-index: 2;
+  position: relative;
+  overflow: visible;
+  -webkit-tap-highlight-color: transparent;
+  -webkit-font-variant-ligatures: none;
+  font-variant-ligatures: none;
+}
+.CodeMirror-wrap pre {
+  word-wrap: break-word;
+  white-space: pre-wrap;
+  word-break: normal;
+}
+
+.CodeMirror .CodeMirror-linebackground {
+  position: absolute;
+  left: 0; right: 0; top: 0; bottom: 0;
+  z-index: 0;
+}
+
+.CodeMirror .CodeMirror-linewidget {
+  position: relative;
+  z-index: 2;
+  overflow: auto;
+}
+
+.CodeMirror-widget {}
+
+.CodeMirror-code {
+  outline: none;
+}
+
+/* Force content-box sizing for the elements where we expect it */
+.CodeMirror-scroll,
+.CodeMirror-sizer,
+.CodeMirror-gutter,
+.CodeMirror-gutters,
+.CodeMirror-linenumber {
+  -moz-box-sizing: content-box;
+  box-sizing: content-box;
+}
+
+.CodeMirror .CodeMirror-measure {
+  position: absolute;
+  width: 100%;
+  height: 0;
+  overflow: hidden;
+  visibility: hidden;
+}
+
+.CodeMirror .CodeMirror-cursor {
+  position: absolute;
+  pointer-events: none;
+}
+.CodeMirror-measure pre { position: static; }
+
+.CodeMirror div.CodeMirror-cursors {
+  visibility: hidden;
+  position: relative;
+  z-index: 3;
+}
+div.CodeMirror-dragcursors {
+  visibility: visible;
+}
+
+.CodeMirror-focused div.CodeMirror-cursors {
+  visibility: visible;
+}
+
+.CodeMirror-selected { background: #d9d9d9; }
+.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
+.CodeMirror-crosshair { cursor: crosshair; }
+.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
+.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
+
+.cm-searching {
+  background: #ffa;
+  background: rgba(255, 255, 0, .4);
+}
+
+/* IE7 hack to prevent it from returning funny offsetTops on the spans */
+.CodeMirror span { *vertical-align: text-bottom; }
+
+/* Used to force a border model for a node */
+.cm-force-border { padding-right: .1px; }
+
+@media print {
+  /* Hide the cursor when printing */
+  .CodeMirror div.CodeMirror-cursors {
+    visibility: hidden;
+  }
+}
+
+/* See issue #2901 */
+.cm-tab-wrap-hack:after { content: ''; }
+
+/* Help users use markselection to safely style text background */
+span.CodeMirror-selectedtext { background: none; }
+
+
+
+
+
+
+
+/*
+  MDN-LIKE Theme - Mozilla
+  Ported to CodeMirror by Peter Kroon <plakroon@gmail.com>
+  Report bugs/issues here: https://github.com/codemirror/CodeMirror/issues
+  GitHub: @peterkroon
+
+  The mdn-like theme is inspired on the displayed code examples at: https://developer.mozilla.org/en-US/docs/Web/CSS/animation
+
+*/
+.cm-s-mdn-like.CodeMirror { color: #999; background-color: #fff; }
+.cm-s-mdn-like div.CodeMirror-selected { background: #cfc; }
+.cm-s-mdn-like .CodeMirror-line::selection, .cm-s-mdn-like .CodeMirror-line > span::selection, .cm-s-mdn-like .CodeMirror-line > span > span::selection { background: #cfc; }
+.cm-s-mdn-like .CodeMirror-line::-moz-selection, .cm-s-mdn-like .CodeMirror-line > span::-moz-selection, .cm-s-mdn-like .CodeMirror-line > span > span::-moz-selection { background: #cfc; }
+
+.cm-s-mdn-like .CodeMirror-gutters { background: #f8f8f8; border-left: 6px solid rgba(0,83,159,0); color: #333; }
+.cm-s-mdn-like .CodeMirror-linenumber { color: #aaa; padding-left: 8px; }
+.cm-s-mdn-like .CodeMirror-cursor { border-left: 2px solid #222; }
+
+.cm-s-mdn-like .cm-keyword { color: #6262FF; }
+.cm-s-mdn-like .cm-atom { color: #F90; }
+.cm-s-mdn-like .cm-number { color:  #ca7841; }
+.cm-s-mdn-like .cm-def { color: #8DA6CE; }
+.cm-s-mdn-like span.cm-variable-2, .cm-s-mdn-like span.cm-tag { color: #690; }
+.cm-s-mdn-like span.cm-variable-3, .cm-s-mdn-like span.cm-def { color: #07a; }
+
+.cm-s-mdn-like .cm-variable { color: #07a; }
+.cm-s-mdn-like .cm-property { color: #905; }
+.cm-s-mdn-like .cm-qualifier { color: #690; }
+
+.cm-s-mdn-like .cm-operator { color: #cda869; }
+.cm-s-mdn-like .cm-comment { color:#777; font-weight:normal; }
+.cm-s-mdn-like .cm-string { color:#07a; font-style:italic; }
+.cm-s-mdn-like .cm-string-2 { color:#bd6b18; } /*?*/
+.cm-s-mdn-like .cm-meta { color: #000; } /*?*/
+.cm-s-mdn-like .cm-builtin { color: #9B7536; } /*?*/
+.cm-s-mdn-like .cm-tag { color: #997643; }
+.cm-s-mdn-like .cm-attribute { color: #d6bb6d; } /*?*/
+.cm-s-mdn-like .cm-header { color: #FF6400; }
+.cm-s-mdn-like .cm-hr { color: #AEAEAE; }
+.cm-s-mdn-like .cm-link { color:#ad9361; font-style:italic; text-decoration:none; }
+.cm-s-mdn-like .cm-error { border-bottom: 1px solid red; }
+
+div.cm-s-mdn-like .CodeMirror-activeline-background { background: #efefff; }
+div.cm-s-mdn-like span.CodeMirror-matchingbracket { outline:1px solid grey; color: inherit; }
+
+/*.cm-s-mdn-like.CodeMirror { background-image: url(data:image/png;base64,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); }*/
diff --git a/layout/default/menu.css b/layout/default/menu.css
index da47b2c54..2b7c14fa6 100644
--- a/layout/default/menu.css
+++ b/layout/default/menu.css
@@ -808,7 +808,7 @@
 	border-radius: 4px;
 	box-shadow: rgba(0, 0, 0, 0.2) 0 0 0 1px, rgba(0, 0, 0, 0.45) 0 0 10px;
 	background: white;
-
+	overflow: hidden;
 }
 .popup-container.editor>div>.editbutton{
 	font-family: 'lishu';
@@ -840,12 +840,6 @@
 	padding: 0;
 	resize: none;
 }
-.popup-container.editor>div>div:last-child div{
-	text-shadow: none;
-	transition: all 0s;
-	position: static;
-	display: block;
-}
 .menubutton.large.new_card,
 .menubutton.large.new_card_delete{
 	left: 12px;