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"no use strict";
!(function(window) {
if (typeof window.window != "undefined" && window.document)
    return;
if (window.require && window.define)
    return;

if (!window.console) {
    window.console = function() {
        var msgs = Array.prototype.slice.call(arguments, 0);
        postMessage({type: "log", data: msgs});
    };
    window.console.error =
    window.console.warn = 
    window.console.log =
    window.console.trace = window.console;
}
window.window = window;
window.ace = window;

window.onerror = function(message, file, line, col, err) {
    postMessage({type: "error", data: {
        message: message,
        data: err.data,
        file: file,
        line: line, 
        col: col,
        stack: err.stack
    }});
};

window.normalizeModule = function(parentId, moduleName) {
    // normalize plugin requires
    if (moduleName.indexOf("!") !== -1) {
        var chunks = moduleName.split("!");
        return window.normalizeModule(parentId, chunks[0]) + "!" + window.normalizeModule(parentId, chunks[1]);
    }
    // normalize relative requires
    if (moduleName.charAt(0) == ".") {
        var base = parentId.split("/").slice(0, -1).join("/");
        moduleName = (base ? base + "/" : "") + moduleName;
        
        while (moduleName.indexOf(".") !== -1 && previous != moduleName) {
            var previous = moduleName;
            moduleName = moduleName.replace(/^\.\//, "").replace(/\/\.\//, "/").replace(/[^\/]+\/\.\.\//, "");
        }
    }
    
    return moduleName;
};

window.require = function require(parentId, id) {
    if (!id) {
        id = parentId;
        parentId = null;
    }
    if (!id.charAt)
        throw new Error("worker.js require() accepts only (parentId, id) as arguments");

    id = window.normalizeModule(parentId, id);

    var module = window.require.modules[id];
    if (module) {
        if (!module.initialized) {
            module.initialized = true;
            module.exports = module.factory().exports;
        }
        return module.exports;
    }
   
    if (!window.require.tlns)
        return console.log("unable to load " + id);
    
    var path = resolveModuleId(id, window.require.tlns);
    if (path.slice(-3) != ".js") path += ".js";
    
    window.require.id = id;
    window.require.modules[id] = {}; // prevent infinite loop on broken modules
    importScripts(path);
    return window.require(parentId, id);
};
function resolveModuleId(id, paths) {
    var testPath = id, tail = "";
    while (testPath) {
        var alias = paths[testPath];
        if (typeof alias == "string") {
            return alias + tail;
        } else if (alias) {
            return  alias.location.replace(/\/*$/, "/") + (tail || alias.main || alias.name);
        } else if (alias === false) {
            return "";
        }
        var i = testPath.lastIndexOf("/");
        if (i === -1) break;
        tail = testPath.substr(i) + tail;
        testPath = testPath.slice(0, i);
    }
    return id;
}
window.require.modules = {};
window.require.tlns = {};

window.define = function(id, deps, factory) {
    if (arguments.length == 2) {
        factory = deps;
        if (typeof id != "string") {
            deps = id;
            id = window.require.id;
        }
    } else if (arguments.length == 1) {
        factory = id;
        deps = [];
        id = window.require.id;
    }
    
    if (typeof factory != "function") {
        window.require.modules[id] = {
            exports: factory,
            initialized: true
        };
        return;
    }

    if (!deps.length)
        // If there is no dependencies, we inject "require", "exports" and
        // "module" as dependencies, to provide CommonJS compatibility.
        deps = ["require", "exports", "module"];

    var req = function(childId) {
        return window.require(id, childId);
    };

    window.require.modules[id] = {
        exports: {},
        factory: function() {
            var module = this;
            var returnExports = factory.apply(this, deps.slice(0, factory.length).map(function(dep) {
                switch (dep) {
                    // Because "require", "exports" and "module" aren't actual
                    // dependencies, we must handle them seperately.
                    case "require": return req;
                    case "exports": return module.exports;
                    case "module":  return module;
                    // But for all other dependencies, we can just go ahead and
                    // require them.
                    default:        return req(dep);
                }
            }));
            if (returnExports)
                module.exports = returnExports;
            return module;
        }
    };
};
window.define.amd = {};
require.tlns = {};
window.initBaseUrls  = function initBaseUrls(topLevelNamespaces) {
    for (var i in topLevelNamespaces)
        require.tlns[i] = topLevelNamespaces[i];
};

window.initSender = function initSender() {

    var EventEmitter = window.require("ace/lib/event_emitter").EventEmitter;
    var oop = window.require("ace/lib/oop");
    
    var Sender = function() {};
    
    (function() {
        
        oop.implement(this, EventEmitter);
                
        this.callback = function(data, callbackId) {
            postMessage({
                type: "call",
                id: callbackId,
                data: data
            });
        };
    
        this.emit = function(name, data) {
            postMessage({
                type: "event",
                name: name,
                data: data
            });
        };
        
    }).call(Sender.prototype);
    
    return new Sender();
};

var main = window.main = null;
var sender = window.sender = null;

window.onmessage = function(e) {
    var msg = e.data;
    if (msg.event && sender) {
        sender._signal(msg.event, msg.data);
    }
    else if (msg.command) {
        if (main[msg.command])
            main[msg.command].apply(main, msg.args);
        else if (window[msg.command])
            window[msg.command].apply(window, msg.args);
        else
            throw new Error("Unknown command:" + msg.command);
    }
    else if (msg.init) {
        window.initBaseUrls(msg.tlns);
        require("ace/lib/es5-shim");
        sender = window.sender = window.initSender();
        var clazz = require(msg.module)[msg.classname];
        main = window.main = new clazz(sender);
    }
};
})(this);

ace.define("ace/lib/oop",[], 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/lang",[], 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 [" + 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/apply_delta",[], 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/lib/event_emitter",[], 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 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",[], 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=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.$splitAndapplyLargeDelta(delta, 20000);
        }
        else {
            applyDelta(this.$lines, delta, doNotValidate);
            this._signal("change", delta);
        }
    };
    
    this.$safeApplyDelta = function(delta) {
        var docLength = this.$lines.length;
        if (
            delta.action == "remove" && delta.start.row < docLength && delta.end.row < docLength
            || delta.action == "insert" && delta.start.row <= docLength
        ) {
            this.applyDelta(delta);
        }
    };
    
    this.$splitAndapplyLargeDelta = function(delta, MAX) {
        var lines = delta.lines;
        var l = lines.length - MAX + 1;
        var row = delta.start.row; 
        var column = delta.start.column;
        for (var from = 0, to = 0; from < l; from = to) {
            to += MAX - 1;
            var chunk = lines.slice(from, to);
            chunk.push("");
            this.applyDelta({
                start: this.pos(row + from, column),
                end: this.pos(row + to, column = 0),
                action: delta.action,
                lines: chunk
            }, true);
        }
        delta.lines = lines.slice(from);
        delta.start.row = row + from;
        delta.start.column = column;
        this.applyDelta(delta, true);
    };
    this.revertDelta = function(delta) {
        this.$safeApplyDelta({
            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.$lines || this.getAllLines();
        var newlineLength = this.getNewLineCharacter().length;
        for (var i = startRow || 0, l = lines.length; i < l; i++) {
            index -= lines[i].length + newlineLength;
            if (index < 0)
                return {row: i, column: index + lines[i].length + newlineLength};
        }
        return {row: l-1, column: index + lines[l-1].length + newlineLength};
    };
    this.positionToIndex = function(pos, startRow) {
        var lines = this.$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/worker/mirror",[], function(require, exports, module) {
"use strict";

var Range = require("../range").Range;
var Document = require("../document").Document;
var lang = require("../lib/lang");
    
var Mirror = exports.Mirror = function(sender) {
    this.sender = sender;
    var doc = this.doc = new Document("");
    
    var deferredUpdate = this.deferredUpdate = lang.delayedCall(this.onUpdate.bind(this));
    
    var _self = this;
    sender.on("change", function(e) {
        var data = e.data;
        if (data[0].start) {
            doc.applyDeltas(data);
        } else {
            for (var i = 0; i < data.length; i += 2) {
                if (Array.isArray(data[i+1])) {
                    var d = {action: "insert", start: data[i], lines: data[i+1]};
                } else {
                    var d = {action: "remove", start: data[i], end: data[i+1]};
                }
                doc.applyDelta(d, true);
            }
        }
        if (_self.$timeout)
            return deferredUpdate.schedule(_self.$timeout);
        _self.onUpdate();
    });
};

(function() {
    
    this.$timeout = 500;
    
    this.setTimeout = function(timeout) {
        this.$timeout = timeout;
    };
    
    this.setValue = function(value) {
        this.doc.setValue(value);
        this.deferredUpdate.schedule(this.$timeout);
    };
    
    this.getValue = function(callbackId) {
        this.sender.callback(this.doc.getValue(), callbackId);
    };
    
    this.onUpdate = function() {
    };
    
    this.isPending = function() {
        return this.deferredUpdate.isPending();
    };
    
}).call(Mirror.prototype);

});

ace.define("ace/mode/css/csslint",[], function(require, exports, module) {
var parserlib = {};
(function(){
function EventTarget(){
    this._listeners = {};
}

EventTarget.prototype = {
    constructor: EventTarget,
    addListener: function(type, listener){
        if (!this._listeners[type]){
            this._listeners[type] = [];
        }

        this._listeners[type].push(listener);
    },
    fire: function(event){
        if (typeof event == "string"){
            event = { type: event };
        }
        if (typeof event.target != "undefined"){
            event.target = this;
        }

        if (typeof event.type == "undefined"){
            throw new Error("Event object missing 'type' property.");
        }

        if (this._listeners[event.type]){
            var listeners = this._listeners[event.type].concat();
            for (var i=0, len=listeners.length; i < len; i++){
                listeners[i].call(this, event);
            }
        }
    },
    removeListener: function(type, listener){
        if (this._listeners[type]){
            var listeners = this._listeners[type];
            for (var i=0, len=listeners.length; i < len; i++){
                if (listeners[i] === listener){
                    listeners.splice(i, 1);
                    break;
                }
            }


        }
    }
};
function StringReader(text){
    this._input = text.replace(/\n\r?/g, "\n");
    this._line = 1;
    this._col = 1;
    this._cursor = 0;
}

StringReader.prototype = {
    constructor: StringReader,
    getCol: function(){
        return this._col;
    },
    getLine: function(){
        return this._line ;
    },
    eof: function(){
        return (this._cursor == this._input.length);
    },
    peek: function(count){
        var c = null;
        count = (typeof count == "undefined" ? 1 : count);
        if (this._cursor < this._input.length){
            c = this._input.charAt(this._cursor + count - 1);
        }

        return c;
    },
    read: function(){
        var c = null;
        if (this._cursor < this._input.length){
            if (this._input.charAt(this._cursor) == "\n"){
                this._line++;
                this._col=1;
            } else {
                this._col++;
            }
            c = this._input.charAt(this._cursor++);
        }

        return c;
    },
    mark: function(){
        this._bookmark = {
            cursor: this._cursor,
            line:   this._line,
            col:    this._col
        };
    },

    reset: function(){
        if (this._bookmark){
            this._cursor = this._bookmark.cursor;
            this._line = this._bookmark.line;
            this._col = this._bookmark.col;
            delete this._bookmark;
        }
    },
    readTo: function(pattern){

        var buffer = "",
            c;
        while (buffer.length < pattern.length || buffer.lastIndexOf(pattern) != buffer.length - pattern.length){
            c = this.read();
            if (c){
                buffer += c;
            } else {
                throw new Error("Expected \"" + pattern + "\" at line " + this._line  + ", col " + this._col + ".");
            }
        }

        return buffer;

    },
    readWhile: function(filter){

        var buffer = "",
            c = this.read();

        while(c !== null && filter(c)){
            buffer += c;
            c = this.read();
        }

        return buffer;

    },
    readMatch: function(matcher){

        var source = this._input.substring(this._cursor),
            value = null;
        if (typeof matcher == "string"){
            if (source.indexOf(matcher) === 0){
                value = this.readCount(matcher.length);
            }
        } else if (matcher instanceof RegExp){
            if (matcher.test(source)){
                value = this.readCount(RegExp.lastMatch.length);
            }
        }

        return value;
    },
    readCount: function(count){
        var buffer = "";

        while(count--){
            buffer += this.read();
        }

        return buffer;
    }

};
function SyntaxError(message, line, col){
    this.col = col;
    this.line = line;
    this.message = message;

}
SyntaxError.prototype = new Error();
function SyntaxUnit(text, line, col, type){
    this.col = col;
    this.line = line;
    this.text = text;
    this.type = type;
}
SyntaxUnit.fromToken = function(token){
    return new SyntaxUnit(token.value, token.startLine, token.startCol);
};

SyntaxUnit.prototype = {
    constructor: SyntaxUnit,
    valueOf: function(){
        return this.text;
    },
    toString: function(){
        return this.text;
    }

};
function TokenStreamBase(input, tokenData){
    this._reader = input ? new StringReader(input.toString()) : null;
    this._token = null;
    this._tokenData = tokenData;
    this._lt = [];
    this._ltIndex = 0;

    this._ltIndexCache = [];
}
TokenStreamBase.createTokenData = function(tokens){

    var nameMap     = [],
        typeMap     = {},
        tokenData     = tokens.concat([]),
        i            = 0,
        len            = tokenData.length+1;

    tokenData.UNKNOWN = -1;
    tokenData.unshift({name:"EOF"});

    for (; i < len; i++){
        nameMap.push(tokenData[i].name);
        tokenData[tokenData[i].name] = i;
        if (tokenData[i].text){
            typeMap[tokenData[i].text] = i;
        }
    }

    tokenData.name = function(tt){
        return nameMap[tt];
    };

    tokenData.type = function(c){
        return typeMap[c];
    };

    return tokenData;
};

TokenStreamBase.prototype = {
    constructor: TokenStreamBase,
    match: function(tokenTypes, channel){
        if (!(tokenTypes instanceof Array)){
            tokenTypes = [tokenTypes];
        }

        var tt  = this.get(channel),
            i   = 0,
            len = tokenTypes.length;

        while(i < len){
            if (tt == tokenTypes[i++]){
                return true;
            }
        }
        this.unget();
        return false;
    },
    mustMatch: function(tokenTypes, channel){

        var token;
        if (!(tokenTypes instanceof Array)){
            tokenTypes = [tokenTypes];
        }

        if (!this.match.apply(this, arguments)){
            token = this.LT(1);
            throw new SyntaxError("Expected " + this._tokenData[tokenTypes[0]].name +
                " at line " + token.startLine + ", col " + token.startCol + ".", token.startLine, token.startCol);
        }
    },
    advance: function(tokenTypes, channel){

        while(this.LA(0) !== 0 && !this.match(tokenTypes, channel)){
            this.get();
        }

        return this.LA(0);
    },
    get: function(channel){

        var tokenInfo   = this._tokenData,
            reader      = this._reader,
            value,
            i           =0,
            len         = tokenInfo.length,
            found       = false,
            token,
            info;
        if (this._lt.length && this._ltIndex >= 0 && this._ltIndex < this._lt.length){

            i++;
            this._token = this._lt[this._ltIndex++];
            info = tokenInfo[this._token.type];
            while((info.channel !== undefined && channel !== info.channel) &&
                    this._ltIndex < this._lt.length){
                this._token = this._lt[this._ltIndex++];
                info = tokenInfo[this._token.type];
                i++;
            }
            if ((info.channel === undefined || channel === info.channel) &&
                    this._ltIndex <= this._lt.length){
                this._ltIndexCache.push(i);
                return this._token.type;
            }
        }
        token = this._getToken();
        if (token.type > -1 && !tokenInfo[token.type].hide){
            token.channel = tokenInfo[token.type].channel;
            this._token = token;
            this._lt.push(token);
            this._ltIndexCache.push(this._lt.length - this._ltIndex + i);
            if (this._lt.length > 5){
                this._lt.shift();
            }
            if (this._ltIndexCache.length > 5){
                this._ltIndexCache.shift();
            }
            this._ltIndex = this._lt.length;
        }
        info = tokenInfo[token.type];
        if (info &&
                (info.hide ||
                (info.channel !== undefined && channel !== info.channel))){
            return this.get(channel);
        } else {
            return token.type;
        }
    },
    LA: function(index){
        var total = index,
            tt;
        if (index > 0){
            if (index > 5){
                throw new Error("Too much lookahead.");
            }
            while(total){
                tt = this.get();
                total--;
            }
            while(total < index){
                this.unget();
                total++;
            }
        } else if (index < 0){

            if(this._lt[this._ltIndex+index]){
                tt = this._lt[this._ltIndex+index].type;
            } else {
                throw new Error("Too much lookbehind.");
            }

        } else {
            tt = this._token.type;
        }

        return tt;

    },
    LT: function(index){
        this.LA(index);
        return this._lt[this._ltIndex+index-1];
    },
    peek: function(){
        return this.LA(1);
    },
    token: function(){
        return this._token;
    },
    tokenName: function(tokenType){
        if (tokenType < 0 || tokenType > this._tokenData.length){
            return "UNKNOWN_TOKEN";
        } else {
            return this._tokenData[tokenType].name;
        }
    },
    tokenType: function(tokenName){
        return this._tokenData[tokenName] || -1;
    },
    unget: function(){
        if (this._ltIndexCache.length){
            this._ltIndex -= this._ltIndexCache.pop();//--;
            this._token = this._lt[this._ltIndex - 1];
        } else {
            throw new Error("Too much lookahead.");
        }
    }

};


parserlib.util = {
StringReader: StringReader,
SyntaxError : SyntaxError,
SyntaxUnit  : SyntaxUnit,
EventTarget : EventTarget,
TokenStreamBase : TokenStreamBase
};
})();
(function(){
var EventTarget = parserlib.util.EventTarget,
TokenStreamBase = parserlib.util.TokenStreamBase,
StringReader = parserlib.util.StringReader,
SyntaxError = parserlib.util.SyntaxError,
SyntaxUnit  = parserlib.util.SyntaxUnit;

var Colors = {
    aliceblue       :"#f0f8ff",
    antiquewhite    :"#faebd7",
    aqua            :"#00ffff",
    aquamarine      :"#7fffd4",
    azure           :"#f0ffff",
    beige           :"#f5f5dc",
    bisque          :"#ffe4c4",
    black           :"#000000",
    blanchedalmond  :"#ffebcd",
    blue            :"#0000ff",
    blueviolet      :"#8a2be2",
    brown           :"#a52a2a",
    burlywood       :"#deb887",
    cadetblue       :"#5f9ea0",
    chartreuse      :"#7fff00",
    chocolate       :"#d2691e",
    coral           :"#ff7f50",
    cornflowerblue  :"#6495ed",
    cornsilk        :"#fff8dc",
    crimson         :"#dc143c",
    cyan            :"#00ffff",
    darkblue        :"#00008b",
    darkcyan        :"#008b8b",
    darkgoldenrod   :"#b8860b",
    darkgray        :"#a9a9a9",
    darkgrey        :"#a9a9a9",
    darkgreen       :"#006400",
    darkkhaki       :"#bdb76b",
    darkmagenta     :"#8b008b",
    darkolivegreen  :"#556b2f",
    darkorange      :"#ff8c00",
    darkorchid      :"#9932cc",
    darkred         :"#8b0000",
    darksalmon      :"#e9967a",
    darkseagreen    :"#8fbc8f",
    darkslateblue   :"#483d8b",
    darkslategray   :"#2f4f4f",
    darkslategrey   :"#2f4f4f",
    darkturquoise   :"#00ced1",
    darkviolet      :"#9400d3",
    deeppink        :"#ff1493",
    deepskyblue     :"#00bfff",
    dimgray         :"#696969",
    dimgrey         :"#696969",
    dodgerblue      :"#1e90ff",
    firebrick       :"#b22222",
    floralwhite     :"#fffaf0",
    forestgreen     :"#228b22",
    fuchsia         :"#ff00ff",
    gainsboro       :"#dcdcdc",
    ghostwhite      :"#f8f8ff",
    gold            :"#ffd700",
    goldenrod       :"#daa520",
    gray            :"#808080",
    grey            :"#808080",
    green           :"#008000",
    greenyellow     :"#adff2f",
    honeydew        :"#f0fff0",
    hotpink         :"#ff69b4",
    indianred       :"#cd5c5c",
    indigo          :"#4b0082",
    ivory           :"#fffff0",
    khaki           :"#f0e68c",
    lavender        :"#e6e6fa",
    lavenderblush   :"#fff0f5",
    lawngreen       :"#7cfc00",
    lemonchiffon    :"#fffacd",
    lightblue       :"#add8e6",
    lightcoral      :"#f08080",
    lightcyan       :"#e0ffff",
    lightgoldenrodyellow  :"#fafad2",
    lightgray       :"#d3d3d3",
    lightgrey       :"#d3d3d3",
    lightgreen      :"#90ee90",
    lightpink       :"#ffb6c1",
    lightsalmon     :"#ffa07a",
    lightseagreen   :"#20b2aa",
    lightskyblue    :"#87cefa",
    lightslategray  :"#778899",
    lightslategrey  :"#778899",
    lightsteelblue  :"#b0c4de",
    lightyellow     :"#ffffe0",
    lime            :"#00ff00",
    limegreen       :"#32cd32",
    linen           :"#faf0e6",
    magenta         :"#ff00ff",
    maroon          :"#800000",
    mediumaquamarine:"#66cdaa",
    mediumblue      :"#0000cd",
    mediumorchid    :"#ba55d3",
    mediumpurple    :"#9370d8",
    mediumseagreen  :"#3cb371",
    mediumslateblue :"#7b68ee",
    mediumspringgreen   :"#00fa9a",
    mediumturquoise :"#48d1cc",
    mediumvioletred :"#c71585",
    midnightblue    :"#191970",
    mintcream       :"#f5fffa",
    mistyrose       :"#ffe4e1",
    moccasin        :"#ffe4b5",
    navajowhite     :"#ffdead",
    navy            :"#000080",
    oldlace         :"#fdf5e6",
    olive           :"#808000",
    olivedrab       :"#6b8e23",
    orange          :"#ffa500",
    orangered       :"#ff4500",
    orchid          :"#da70d6",
    palegoldenrod   :"#eee8aa",
    palegreen       :"#98fb98",
    paleturquoise   :"#afeeee",
    palevioletred   :"#d87093",
    papayawhip      :"#ffefd5",
    peachpuff       :"#ffdab9",
    peru            :"#cd853f",
    pink            :"#ffc0cb",
    plum            :"#dda0dd",
    powderblue      :"#b0e0e6",
    purple          :"#800080",
    red             :"#ff0000",
    rosybrown       :"#bc8f8f",
    royalblue       :"#4169e1",
    saddlebrown     :"#8b4513",
    salmon          :"#fa8072",
    sandybrown      :"#f4a460",
    seagreen        :"#2e8b57",
    seashell        :"#fff5ee",
    sienna          :"#a0522d",
    silver          :"#c0c0c0",
    skyblue         :"#87ceeb",
    slateblue       :"#6a5acd",
    slategray       :"#708090",
    slategrey       :"#708090",
    snow            :"#fffafa",
    springgreen     :"#00ff7f",
    steelblue       :"#4682b4",
    tan             :"#d2b48c",
    teal            :"#008080",
    thistle         :"#d8bfd8",
    tomato          :"#ff6347",
    turquoise       :"#40e0d0",
    violet          :"#ee82ee",
    wheat           :"#f5deb3",
    white           :"#ffffff",
    whitesmoke      :"#f5f5f5",
    yellow          :"#ffff00",
    yellowgreen     :"#9acd32",
    activeBorder        :"Active window border.",
    activecaption       :"Active window caption.",
    appworkspace        :"Background color of multiple document interface.",
    background          :"Desktop background.",
    buttonface          :"The face background color for 3-D elements that appear 3-D due to one layer of surrounding border.",
    buttonhighlight     :"The color of the border facing the light source for 3-D elements that appear 3-D due to one layer of surrounding border.",
    buttonshadow        :"The color of the border away from the light source for 3-D elements that appear 3-D due to one layer of surrounding border.",
    buttontext          :"Text on push buttons.",
    captiontext         :"Text in caption, size box, and scrollbar arrow box.",
    graytext            :"Grayed (disabled) text. This color is set to #000 if the current display driver does not support a solid gray color.",
    greytext            :"Greyed (disabled) text. This color is set to #000 if the current display driver does not support a solid grey color.",
    highlight           :"Item(s) selected in a control.",
    highlighttext       :"Text of item(s) selected in a control.",
    inactiveborder      :"Inactive window border.",
    inactivecaption     :"Inactive window caption.",
    inactivecaptiontext :"Color of text in an inactive caption.",
    infobackground      :"Background color for tooltip controls.",
    infotext            :"Text color for tooltip controls.",
    menu                :"Menu background.",
    menutext            :"Text in menus.",
    scrollbar           :"Scroll bar gray area.",
    threeddarkshadow    :"The color of the darker (generally outer) of the two borders away from the light source for 3-D elements that appear 3-D due to two concentric layers of surrounding border.",
    threedface          :"The face background color for 3-D elements that appear 3-D due to two concentric layers of surrounding border.",
    threedhighlight     :"The color of the lighter (generally outer) of the two borders facing the light source for 3-D elements that appear 3-D due to two concentric layers of surrounding border.",
    threedlightshadow   :"The color of the darker (generally inner) of the two borders facing the light source for 3-D elements that appear 3-D due to two concentric layers of surrounding border.",
    threedshadow        :"The color of the lighter (generally inner) of the two borders away from the light source for 3-D elements that appear 3-D due to two concentric layers of surrounding border.",
    window              :"Window background.",
    windowframe         :"Window frame.",
    windowtext          :"Text in windows."
};
function Combinator(text, line, col){

    SyntaxUnit.call(this, text, line, col, Parser.COMBINATOR_TYPE);
    this.type = "unknown";
    if (/^\s+$/.test(text)){
        this.type = "descendant";
    } else if (text == ">"){
        this.type = "child";
    } else if (text == "+"){
        this.type = "adjacent-sibling";
    } else if (text == "~"){
        this.type = "sibling";
    }

}

Combinator.prototype = new SyntaxUnit();
Combinator.prototype.constructor = Combinator;
function MediaFeature(name, value){

    SyntaxUnit.call(this, "(" + name + (value !== null ? ":" + value : "") + ")", name.startLine, name.startCol, Parser.MEDIA_FEATURE_TYPE);
    this.name = name;
    this.value = value;
}

MediaFeature.prototype = new SyntaxUnit();
MediaFeature.prototype.constructor = MediaFeature;
function MediaQuery(modifier, mediaType, features, line, col){

    SyntaxUnit.call(this, (modifier ? modifier + " ": "") + (mediaType ? mediaType : "") + (mediaType && features.length > 0 ? " and " : "") + features.join(" and "), line, col, Parser.MEDIA_QUERY_TYPE);
    this.modifier = modifier;
    this.mediaType = mediaType;
    this.features = features;

}

MediaQuery.prototype = new SyntaxUnit();
MediaQuery.prototype.constructor = MediaQuery;
function Parser(options){
    EventTarget.call(this);


    this.options = options || {};

    this._tokenStream = null;
}
Parser.DEFAULT_TYPE = 0;
Parser.COMBINATOR_TYPE = 1;
Parser.MEDIA_FEATURE_TYPE = 2;
Parser.MEDIA_QUERY_TYPE = 3;
Parser.PROPERTY_NAME_TYPE = 4;
Parser.PROPERTY_VALUE_TYPE = 5;
Parser.PROPERTY_VALUE_PART_TYPE = 6;
Parser.SELECTOR_TYPE = 7;
Parser.SELECTOR_PART_TYPE = 8;
Parser.SELECTOR_SUB_PART_TYPE = 9;

Parser.prototype = function(){

    var proto = new EventTarget(),  //new prototype
        prop,
        additions =  {
            constructor: Parser,
            DEFAULT_TYPE : 0,
            COMBINATOR_TYPE : 1,
            MEDIA_FEATURE_TYPE : 2,
            MEDIA_QUERY_TYPE : 3,
            PROPERTY_NAME_TYPE : 4,
            PROPERTY_VALUE_TYPE : 5,
            PROPERTY_VALUE_PART_TYPE : 6,
            SELECTOR_TYPE : 7,
            SELECTOR_PART_TYPE : 8,
            SELECTOR_SUB_PART_TYPE : 9,

            _stylesheet: function(){

                var tokenStream = this._tokenStream,
                    charset     = null,
                    count,
                    token,
                    tt;

                this.fire("startstylesheet");
                this._charset();

                this._skipCruft();
                while (tokenStream.peek() == Tokens.IMPORT_SYM){
                    this._import();
                    this._skipCruft();
                }
                while (tokenStream.peek() == Tokens.NAMESPACE_SYM){
                    this._namespace();
                    this._skipCruft();
                }
                tt = tokenStream.peek();
                while(tt > Tokens.EOF){

                    try {

                        switch(tt){
                            case Tokens.MEDIA_SYM:
                                this._media();
                                this._skipCruft();
                                break;
                            case Tokens.PAGE_SYM:
                                this._page();
                                this._skipCruft();
                                break;
                            case Tokens.FONT_FACE_SYM:
                                this._font_face();
                                this._skipCruft();
                                break;
                            case Tokens.KEYFRAMES_SYM:
                                this._keyframes();
                                this._skipCruft();
                                break;
                            case Tokens.VIEWPORT_SYM:
                                this._viewport();
                                this._skipCruft();
                                break;
                            case Tokens.UNKNOWN_SYM:  //unknown @ rule
                                tokenStream.get();
                                if (!this.options.strict){
                                    this.fire({
                                        type:       "error",
                                        error:      null,
                                        message:    "Unknown @ rule: " + tokenStream.LT(0).value + ".",
                                        line:       tokenStream.LT(0).startLine,
                                        col:        tokenStream.LT(0).startCol
                                    });
                                    count=0;
                                    while (tokenStream.advance([Tokens.LBRACE, Tokens.RBRACE]) == Tokens.LBRACE){
                                        count++;    //keep track of nesting depth
                                    }

                                    while(count){
                                        tokenStream.advance([Tokens.RBRACE]);
                                        count--;
                                    }

                                } else {
                                    throw new SyntaxError("Unknown @ rule.", tokenStream.LT(0).startLine, tokenStream.LT(0).startCol);
                                }
                                break;
                            case Tokens.S:
                                this._readWhitespace();
                                break;
                            default:
                                if(!this._ruleset()){
                                    switch(tt){
                                        case Tokens.CHARSET_SYM:
                                            token = tokenStream.LT(1);
                                            this._charset(false);
                                            throw new SyntaxError("@charset not allowed here.", token.startLine, token.startCol);
                                        case Tokens.IMPORT_SYM:
                                            token = tokenStream.LT(1);
                                            this._import(false);
                                            throw new SyntaxError("@import not allowed here.", token.startLine, token.startCol);
                                        case Tokens.NAMESPACE_SYM:
                                            token = tokenStream.LT(1);
                                            this._namespace(false);
                                            throw new SyntaxError("@namespace not allowed here.", token.startLine, token.startCol);
                                        default:
                                            tokenStream.get();  //get the last token
                                            this._unexpectedToken(tokenStream.token());
                                    }

                                }
                        }
                    } catch(ex) {
                        if (ex instanceof SyntaxError && !this.options.strict){
                            this.fire({
                                type:       "error",
                                error:      ex,
                                message:    ex.message,
                                line:       ex.line,
                                col:        ex.col
                            });
                        } else {
                            throw ex;
                        }
                    }

                    tt = tokenStream.peek();
                }

                if (tt != Tokens.EOF){
                    this._unexpectedToken(tokenStream.token());
                }

                this.fire("endstylesheet");
            },

            _charset: function(emit){
                var tokenStream = this._tokenStream,
                    charset,
                    token,
                    line,
                    col;

                if (tokenStream.match(Tokens.CHARSET_SYM)){
                    line = tokenStream.token().startLine;
                    col = tokenStream.token().startCol;

                    this._readWhitespace();
                    tokenStream.mustMatch(Tokens.STRING);

                    token = tokenStream.token();
                    charset = token.value;

                    this._readWhitespace();
                    tokenStream.mustMatch(Tokens.SEMICOLON);

                    if (emit !== false){
                        this.fire({
                            type:   "charset",
                            charset:charset,
                            line:   line,
                            col:    col
                        });
                    }
                }
            },

            _import: function(emit){

                var tokenStream = this._tokenStream,
                    tt,
                    uri,
                    importToken,
                    mediaList   = [];
                tokenStream.mustMatch(Tokens.IMPORT_SYM);
                importToken = tokenStream.token();
                this._readWhitespace();

                tokenStream.mustMatch([Tokens.STRING, Tokens.URI]);
                uri = tokenStream.token().value.replace(/^(?:url\()?["']?([^"']+?)["']?\)?$/, "$1");

                this._readWhitespace();

                mediaList = this._media_query_list();
                tokenStream.mustMatch(Tokens.SEMICOLON);
                this._readWhitespace();

                if (emit !== false){
                    this.fire({
                        type:   "import",
                        uri:    uri,
                        media:  mediaList,
                        line:   importToken.startLine,
                        col:    importToken.startCol
                    });
                }

            },

            _namespace: function(emit){

                var tokenStream = this._tokenStream,
                    line,
                    col,
                    prefix,
                    uri;
                tokenStream.mustMatch(Tokens.NAMESPACE_SYM);
                line = tokenStream.token().startLine;
                col = tokenStream.token().startCol;
                this._readWhitespace();
                if (tokenStream.match(Tokens.IDENT)){
                    prefix = tokenStream.token().value;
                    this._readWhitespace();
                }

                tokenStream.mustMatch([Tokens.STRING, Tokens.URI]);
                uri = tokenStream.token().value.replace(/(?:url\()?["']([^"']+)["']\)?/, "$1");

                this._readWhitespace();
                tokenStream.mustMatch(Tokens.SEMICOLON);
                this._readWhitespace();

                if (emit !== false){
                    this.fire({
                        type:   "namespace",
                        prefix: prefix,
                        uri:    uri,
                        line:   line,
                        col:    col
                    });
                }

            },

            _media: function(){
                var tokenStream     = this._tokenStream,
                    line,
                    col,
                    mediaList;//       = [];
                tokenStream.mustMatch(Tokens.MEDIA_SYM);
                line = tokenStream.token().startLine;
                col = tokenStream.token().startCol;

                this._readWhitespace();

                mediaList = this._media_query_list();

                tokenStream.mustMatch(Tokens.LBRACE);
                this._readWhitespace();

                this.fire({
                    type:   "startmedia",
                    media:  mediaList,
                    line:   line,
                    col:    col
                });

                while(true) {
                    if (tokenStream.peek() == Tokens.PAGE_SYM){
                        this._page();
                    } else if (tokenStream.peek() == Tokens.FONT_FACE_SYM){
                        this._font_face();
                    } else if (tokenStream.peek() == Tokens.VIEWPORT_SYM){
                        this._viewport();
                    } else if (!this._ruleset()){
                        break;
                    }
                }

                tokenStream.mustMatch(Tokens.RBRACE);
                this._readWhitespace();

                this.fire({
                    type:   "endmedia",
                    media:  mediaList,
                    line:   line,
                    col:    col
                });
            },
            _media_query_list: function(){
                var tokenStream = this._tokenStream,
                    mediaList   = [];


                this._readWhitespace();

                if (tokenStream.peek() == Tokens.IDENT || tokenStream.peek() == Tokens.LPAREN){
                    mediaList.push(this._media_query());
                }

                while(tokenStream.match(Tokens.COMMA)){
                    this._readWhitespace();
                    mediaList.push(this._media_query());
                }

                return mediaList;
            },
            _media_query: function(){
                var tokenStream = this._tokenStream,
                    type        = null,
                    ident       = null,
                    token       = null,
                    expressions = [];

                if (tokenStream.match(Tokens.IDENT)){
                    ident = tokenStream.token().value.toLowerCase();
                    if (ident != "only" && ident != "not"){
                        tokenStream.unget();
                        ident = null;
                    } else {
                        token = tokenStream.token();
                    }
                }

                this._readWhitespace();

                if (tokenStream.peek() == Tokens.IDENT){
                    type = this._media_type();
                    if (token === null){
                        token = tokenStream.token();
                    }
                } else if (tokenStream.peek() == Tokens.LPAREN){
                    if (token === null){
                        token = tokenStream.LT(1);
                    }
                    expressions.push(this._media_expression());
                }

                if (type === null && expressions.length === 0){
                    return null;
                } else {
                    this._readWhitespace();
                    while (tokenStream.match(Tokens.IDENT)){
                        if (tokenStream.token().value.toLowerCase() != "and"){
                            this._unexpectedToken(tokenStream.token());
                        }

                        this._readWhitespace();
                        expressions.push(this._media_expression());
                    }
                }

                return new MediaQuery(ident, type, expressions, token.startLine, token.startCol);
            },
            _media_type: function(){
                return this._media_feature();
            },
            _media_expression: function(){
                var tokenStream = this._tokenStream,
                    feature     = null,
                    token,
                    expression  = null;

                tokenStream.mustMatch(Tokens.LPAREN);
                this._readWhitespace();

                feature = this._media_feature();
                this._readWhitespace();

                if (tokenStream.match(Tokens.COLON)){
                    this._readWhitespace();
                    token = tokenStream.LT(1);
                    expression = this._expression();
                }

                tokenStream.mustMatch(Tokens.RPAREN);
                this._readWhitespace();

                return new MediaFeature(feature, (expression ? new SyntaxUnit(expression, token.startLine, token.startCol) : null));
            },
            _media_feature: function(){
                var tokenStream = this._tokenStream;

                tokenStream.mustMatch(Tokens.IDENT);

                return SyntaxUnit.fromToken(tokenStream.token());
            },
            _page: function(){
                var tokenStream = this._tokenStream,
                    line,
                    col,
                    identifier  = null,
                    pseudoPage  = null;
                tokenStream.mustMatch(Tokens.PAGE_SYM);
                line = tokenStream.token().startLine;
                col = tokenStream.token().startCol;

                this._readWhitespace();

                if (tokenStream.match(Tokens.IDENT)){
                    identifier = tokenStream.token().value;
                    if (identifier.toLowerCase() === "auto"){
                        this._unexpectedToken(tokenStream.token());
                    }
                }
                if (tokenStream.peek() == Tokens.COLON){
                    pseudoPage = this._pseudo_page();
                }

                this._readWhitespace();

                this.fire({
                    type:   "startpage",
                    id:     identifier,
                    pseudo: pseudoPage,
                    line:   line,
                    col:    col
                });

                this._readDeclarations(true, true);

                this.fire({
                    type:   "endpage",
                    id:     identifier,
                    pseudo: pseudoPage,
                    line:   line,
                    col:    col
                });

            },
            _margin: function(){
                var tokenStream = this._tokenStream,
                    line,
                    col,
                    marginSym   = this._margin_sym();

                if (marginSym){
                    line = tokenStream.token().startLine;
                    col = tokenStream.token().startCol;

                    this.fire({
                        type: "startpagemargin",
                        margin: marginSym,
                        line:   line,
                        col:    col
                    });

                    this._readDeclarations(true);

                    this.fire({
                        type: "endpagemargin",
                        margin: marginSym,
                        line:   line,
                        col:    col
                    });
                    return true;
                } else {
                    return false;
                }
            },
            _margin_sym: function(){

                var tokenStream = this._tokenStream;

                if(tokenStream.match([Tokens.TOPLEFTCORNER_SYM, Tokens.TOPLEFT_SYM,
                        Tokens.TOPCENTER_SYM, Tokens.TOPRIGHT_SYM, Tokens.TOPRIGHTCORNER_SYM,
                        Tokens.BOTTOMLEFTCORNER_SYM, Tokens.BOTTOMLEFT_SYM,
                        Tokens.BOTTOMCENTER_SYM, Tokens.BOTTOMRIGHT_SYM,
                        Tokens.BOTTOMRIGHTCORNER_SYM, Tokens.LEFTTOP_SYM,
                        Tokens.LEFTMIDDLE_SYM, Tokens.LEFTBOTTOM_SYM, Tokens.RIGHTTOP_SYM,
                        Tokens.RIGHTMIDDLE_SYM, Tokens.RIGHTBOTTOM_SYM]))
                {
                    return SyntaxUnit.fromToken(tokenStream.token());
                } else {
                    return null;
                }

            },

            _pseudo_page: function(){

                var tokenStream = this._tokenStream;

                tokenStream.mustMatch(Tokens.COLON);
                tokenStream.mustMatch(Tokens.IDENT);

                return tokenStream.token().value;
            },

            _font_face: function(){
                var tokenStream = this._tokenStream,
                    line,
                    col;
                tokenStream.mustMatch(Tokens.FONT_FACE_SYM);
                line = tokenStream.token().startLine;
                col = tokenStream.token().startCol;

                this._readWhitespace();

                this.fire({
                    type:   "startfontface",
                    line:   line,
                    col:    col
                });

                this._readDeclarations(true);

                this.fire({
                    type:   "endfontface",
                    line:   line,
                    col:    col
                });
            },

            _viewport: function(){
                 var tokenStream = this._tokenStream,
                    line,
                    col;

                    tokenStream.mustMatch(Tokens.VIEWPORT_SYM);
                    line = tokenStream.token().startLine;
                    col = tokenStream.token().startCol;

                    this._readWhitespace();

                    this.fire({
                        type:   "startviewport",
                        line:   line,
                        col:    col
                    });

                    this._readDeclarations(true);

                    this.fire({
                        type:   "endviewport",
                        line:   line,
                        col:    col
                    });

            },

            _operator: function(inFunction){

                var tokenStream = this._tokenStream,
                    token       = null;

                if (tokenStream.match([Tokens.SLASH, Tokens.COMMA]) ||
                    (inFunction && tokenStream.match([Tokens.PLUS, Tokens.STAR, Tokens.MINUS]))){
                    token =  tokenStream.token();
                    this._readWhitespace();
                }
                return token ? PropertyValuePart.fromToken(token) : null;

            },

            _combinator: function(){

                var tokenStream = this._tokenStream,
                    value       = null,
                    token;

                if(tokenStream.match([Tokens.PLUS, Tokens.GREATER, Tokens.TILDE])){
                    token = tokenStream.token();
                    value = new Combinator(token.value, token.startLine, token.startCol);
                    this._readWhitespace();
                }

                return value;
            },

            _unary_operator: function(){

                var tokenStream = this._tokenStream;

                if (tokenStream.match([Tokens.MINUS, Tokens.PLUS])){
                    return tokenStream.token().value;
                } else {
                    return null;
                }
            },

            _property: function(){

                var tokenStream = this._tokenStream,
                    value       = null,
                    hack        = null,
                    tokenValue,
                    token,
                    line,
                    col;
                if (tokenStream.peek() == Tokens.STAR && this.options.starHack){
                    tokenStream.get();
                    token = tokenStream.token();
                    hack = token.value;
                    line = token.startLine;
                    col = token.startCol;
                }

                if(tokenStream.match(Tokens.IDENT)){
                    token = tokenStream.token();
                    tokenValue = token.value;
                    if (tokenValue.charAt(0) == "_" && this.options.underscoreHack){
                        hack = "_";
                        tokenValue = tokenValue.substring(1);
                    }

                    value = new PropertyName(tokenValue, hack, (line||token.startLine), (col||token.startCol));
                    this._readWhitespace();
                }

                return value;
            },
            _ruleset: function(){

                var tokenStream = this._tokenStream,
                    tt,
                    selectors;
                try {
                    selectors = this._selectors_group();
                } catch (ex){
                    if (ex instanceof SyntaxError && !this.options.strict){
                        this.fire({
                            type:       "error",
                            error:      ex,
                            message:    ex.message,
                            line:       ex.line,
                            col:        ex.col
                        });
                        tt = tokenStream.advance([Tokens.RBRACE]);
                        if (tt == Tokens.RBRACE){
                        } else {
                            throw ex;
                        }

                    } else {
                        throw ex;
                    }
                    return true;
                }
                if (selectors){

                    this.fire({
                        type:       "startrule",
                        selectors:  selectors,
                        line:       selectors[0].line,
                        col:        selectors[0].col
                    });

                    this._readDeclarations(true);

                    this.fire({
                        type:       "endrule",
                        selectors:  selectors,
                        line:       selectors[0].line,
                        col:        selectors[0].col
                    });

                }

                return selectors;

            },
            _selectors_group: function(){
                var tokenStream = this._tokenStream,
                    selectors   = [],
                    selector;

                selector = this._selector();
                if (selector !== null){

                    selectors.push(selector);
                    while(tokenStream.match(Tokens.COMMA)){
                        this._readWhitespace();
                        selector = this._selector();
                        if (selector !== null){
                            selectors.push(selector);
                        } else {
                            this._unexpectedToken(tokenStream.LT(1));
                        }
                    }
                }

                return selectors.length ? selectors : null;
            },
            _selector: function(){

                var tokenStream = this._tokenStream,
                    selector    = [],
                    nextSelector = null,
                    combinator  = null,
                    ws          = null;
                nextSelector = this._simple_selector_sequence();
                if (nextSelector === null){
                    return null;
                }

                selector.push(nextSelector);

                do {
                    combinator = this._combinator();

                    if (combinator !== null){
                        selector.push(combinator);
                        nextSelector = this._simple_selector_sequence();
                        if (nextSelector === null){
                            this._unexpectedToken(tokenStream.LT(1));
                        } else {
                            selector.push(nextSelector);
                        }
                    } else {
                        if (this._readWhitespace()){
                            ws = new Combinator(tokenStream.token().value, tokenStream.token().startLine, tokenStream.token().startCol);
                            combinator = this._combinator();
                            nextSelector = this._simple_selector_sequence();
                            if (nextSelector === null){
                                if (combinator !== null){
                                    this._unexpectedToken(tokenStream.LT(1));
                                }
                            } else {

                                if (combinator !== null){
                                    selector.push(combinator);
                                } else {
                                    selector.push(ws);
                                }

                                selector.push(nextSelector);
                            }
                        } else {
                            break;
                        }

                    }
                } while(true);

                return new Selector(selector, selector[0].line, selector[0].col);
            },
            _simple_selector_sequence: function(){

                var tokenStream = this._tokenStream,
                    elementName = null,
                    modifiers   = [],
                    selectorText= "",
                    components  = [
                        function(){
                            return tokenStream.match(Tokens.HASH) ?
                                    new SelectorSubPart(tokenStream.token().value, "id", tokenStream.token().startLine, tokenStream.token().startCol) :
                                    null;
                        },
                        this._class,
                        this._attrib,
                        this._pseudo,
                        this._negation
                    ],
                    i           = 0,
                    len         = components.length,
                    component   = null,
                    found       = false,
                    line,
                    col;
                line = tokenStream.LT(1).startLine;
                col = tokenStream.LT(1).startCol;

                elementName = this._type_selector();
                if (!elementName){
                    elementName = this._universal();
                }

                if (elementName !== null){
                    selectorText += elementName;
                }

                while(true){
                    if (tokenStream.peek() === Tokens.S){
                        break;
                    }
                    while(i < len && component === null){
                        component = components[i++].call(this);
                    }

                    if (component === null){
                        if (selectorText === ""){
                            return null;
                        } else {
                            break;
                        }
                    } else {
                        i = 0;
                        modifiers.push(component);
                        selectorText += component.toString();
                        component = null;
                    }
                }


                return selectorText !== "" ?
                        new SelectorPart(elementName, modifiers, selectorText, line, col) :
                        null;
            },
            _type_selector: function(){

                var tokenStream = this._tokenStream,
                    ns          = this._namespace_prefix(),
                    elementName = this._element_name();

                if (!elementName){
                    if (ns){
                        tokenStream.unget();
                        if (ns.length > 1){
                            tokenStream.unget();
                        }
                    }

                    return null;
                } else {
                    if (ns){
                        elementName.text = ns + elementName.text;
                        elementName.col -= ns.length;
                    }
                    return elementName;
                }
            },
            _class: function(){

                var tokenStream = this._tokenStream,
                    token;

                if (tokenStream.match(Tokens.DOT)){
                    tokenStream.mustMatch(Tokens.IDENT);
                    token = tokenStream.token();
                    return new SelectorSubPart("." + token.value, "class", token.startLine, token.startCol - 1);
                } else {
                    return null;
                }

            },
            _element_name: function(){

                var tokenStream = this._tokenStream,
                    token;

                if (tokenStream.match(Tokens.IDENT)){
                    token = tokenStream.token();
                    return new SelectorSubPart(token.value, "elementName", token.startLine, token.startCol);

                } else {
                    return null;
                }
            },
            _namespace_prefix: function(){
                var tokenStream = this._tokenStream,
                    value       = "";
                if (tokenStream.LA(1) === Tokens.PIPE || tokenStream.LA(2) === Tokens.PIPE){

                    if(tokenStream.match([Tokens.IDENT, Tokens.STAR])){
                        value += tokenStream.token().value;
                    }

                    tokenStream.mustMatch(Tokens.PIPE);
                    value += "|";

                }

                return value.length ? value : null;
            },
            _universal: function(){
                var tokenStream = this._tokenStream,
                    value       = "",
                    ns;

                ns = this._namespace_prefix();
                if(ns){
                    value += ns;
                }

                if(tokenStream.match(Tokens.STAR)){
                    value += "*";
                }

                return value.length ? value : null;

           },
            _attrib: function(){

                var tokenStream = this._tokenStream,
                    value       = null,
                    ns,
                    token;

                if (tokenStream.match(Tokens.LBRACKET)){
                    token = tokenStream.token();
                    value = token.value;
                    value += this._readWhitespace();

                    ns = this._namespace_prefix();

                    if (ns){
                        value += ns;
                    }

                    tokenStream.mustMatch(Tokens.IDENT);
                    value += tokenStream.token().value;
                    value += this._readWhitespace();

                    if(tokenStream.match([Tokens.PREFIXMATCH, Tokens.SUFFIXMATCH, Tokens.SUBSTRINGMATCH,
                            Tokens.EQUALS, Tokens.INCLUDES, Tokens.DASHMATCH])){

                        value += tokenStream.token().value;
                        value += this._readWhitespace();

                        tokenStream.mustMatch([Tokens.IDENT, Tokens.STRING]);
                        value += tokenStream.token().value;
                        value += this._readWhitespace();
                    }

                    tokenStream.mustMatch(Tokens.RBRACKET);

                    return new SelectorSubPart(value + "]", "attribute", token.startLine, token.startCol);
                } else {
                    return null;
                }
            },
            _pseudo: function(){

                var tokenStream = this._tokenStream,
                    pseudo      = null,
                    colons      = ":",
                    line,
                    col;

                if (tokenStream.match(Tokens.COLON)){

                    if (tokenStream.match(Tokens.COLON)){
                        colons += ":";
                    }

                    if (tokenStream.match(Tokens.IDENT)){
                        pseudo = tokenStream.token().value;
                        line = tokenStream.token().startLine;
                        col = tokenStream.token().startCol - colons.length;
                    } else if (tokenStream.peek() == Tokens.FUNCTION){
                        line = tokenStream.LT(1).startLine;
                        col = tokenStream.LT(1).startCol - colons.length;
                        pseudo = this._functional_pseudo();
                    }

                    if (pseudo){
                        pseudo = new SelectorSubPart(colons + pseudo, "pseudo", line, col);
                    }
                }

                return pseudo;
            },
            _functional_pseudo: function(){

                var tokenStream = this._tokenStream,
                    value = null;

                if(tokenStream.match(Tokens.FUNCTION)){
                    value = tokenStream.token().value;
                    value += this._readWhitespace();
                    value += this._expression();
                    tokenStream.mustMatch(Tokens.RPAREN);
                    value += ")";
                }

                return value;
            },
            _expression: function(){

                var tokenStream = this._tokenStream,
                    value       = "";

                while(tokenStream.match([Tokens.PLUS, Tokens.MINUS, Tokens.DIMENSION,
                        Tokens.NUMBER, Tokens.STRING, Tokens.IDENT, Tokens.LENGTH,
                        Tokens.FREQ, Tokens.ANGLE, Tokens.TIME,
                        Tokens.RESOLUTION, Tokens.SLASH])){

                    value += tokenStream.token().value;
                    value += this._readWhitespace();
                }

                return value.length ? value : null;

            },
            _negation: function(){

                var tokenStream = this._tokenStream,
                    line,
                    col,
                    value       = "",
                    arg,
                    subpart     = null;

                if (tokenStream.match(Tokens.NOT)){
                    value = tokenStream.token().value;
                    line = tokenStream.token().startLine;
                    col = tokenStream.token().startCol;
                    value += this._readWhitespace();
                    arg = this._negation_arg();
                    value += arg;
                    value += this._readWhitespace();
                    tokenStream.match(Tokens.RPAREN);
                    value += tokenStream.token().value;

                    subpart = new SelectorSubPart(value, "not", line, col);
                    subpart.args.push(arg);
                }

                return subpart;
            },
            _negation_arg: function(){

                var tokenStream = this._tokenStream,
                    args        = [
                        this._type_selector,
                        this._universal,
                        function(){
                            return tokenStream.match(Tokens.HASH) ?
                                    new SelectorSubPart(tokenStream.token().value, "id", tokenStream.token().startLine, tokenStream.token().startCol) :
                                    null;
                        },
                        this._class,
                        this._attrib,
                        this._pseudo
                    ],
                    arg         = null,
                    i           = 0,
                    len         = args.length,
                    elementName,
                    line,
                    col,
                    part;

                line = tokenStream.LT(1).startLine;
                col = tokenStream.LT(1).startCol;

                while(i < len && arg === null){

                    arg = args[i].call(this);
                    i++;
                }
                if (arg === null){
                    this._unexpectedToken(tokenStream.LT(1));
                }
                if (arg.type == "elementName"){
                    part = new SelectorPart(arg, [], arg.toString(), line, col);
                } else {
                    part = new SelectorPart(null, [arg], arg.toString(), line, col);
                }

                return part;
            },

            _declaration: function(){

                var tokenStream = this._tokenStream,
                    property    = null,
                    expr        = null,
                    prio        = null,
                    error       = null,
                    invalid     = null,
                    propertyName= "";

                property = this._property();
                if (property !== null){

                    tokenStream.mustMatch(Tokens.COLON);
                    this._readWhitespace();

                    expr = this._expr();
                    if (!expr || expr.length === 0){
                        this._unexpectedToken(tokenStream.LT(1));
                    }

                    prio = this._prio();
                    propertyName = property.toString();
                    if (this.options.starHack && property.hack == "*" ||
                            this.options.underscoreHack && property.hack == "_") {

                        propertyName = property.text;
                    }

                    try {
                        this._validateProperty(propertyName, expr);
                    } catch (ex) {
                        invalid = ex;
                    }

                    this.fire({
                        type:       "property",
                        property:   property,
                        value:      expr,
                        important:  prio,
                        line:       property.line,
                        col:        property.col,
                        invalid:    invalid
                    });

                    return true;
                } else {
                    return false;
                }
            },

            _prio: function(){

                var tokenStream = this._tokenStream,
                    result      = tokenStream.match(Tokens.IMPORTANT_SYM);

                this._readWhitespace();
                return result;
            },

            _expr: function(inFunction){

                var tokenStream = this._tokenStream,
                    values      = [],
                    value       = null,
                    operator    = null;

                value = this._term(inFunction);
                if (value !== null){

                    values.push(value);

                    do {
                        operator = this._operator(inFunction);
                        if (operator){
                            values.push(operator);
                        } /*else {
                            values.push(new PropertyValue(valueParts, valueParts[0].line, valueParts[0].col));
                            valueParts = [];
                        }*/

                        value = this._term(inFunction);

                        if (value === null){
                            break;
                        } else {
                            values.push(value);
                        }
                    } while(true);
                }

                return values.length > 0 ? new PropertyValue(values, values[0].line, values[0].col) : null;
            },

            _term: function(inFunction){

                var tokenStream = this._tokenStream,
                    unary       = null,
                    value       = null,
                    endChar     = null,
                    token,
                    line,
                    col;
                unary = this._unary_operator();
                if (unary !== null){
                    line = tokenStream.token().startLine;
                    col = tokenStream.token().startCol;
                }
                if (tokenStream.peek() == Tokens.IE_FUNCTION && this.options.ieFilters){

                    value = this._ie_function();
                    if (unary === null){
                        line = tokenStream.token().startLine;
                        col = tokenStream.token().startCol;
                    }
                } else if (inFunction && tokenStream.match([Tokens.LPAREN, Tokens.LBRACE, Tokens.LBRACKET])){

                    token = tokenStream.token();
                    endChar = token.endChar;
                    value = token.value + this._expr(inFunction).text;
                    if (unary === null){
                        line = tokenStream.token().startLine;
                        col = tokenStream.token().startCol;
                    }
                    tokenStream.mustMatch(Tokens.type(endChar));
                    value += endChar;
                    this._readWhitespace();
                } else if (tokenStream.match([Tokens.NUMBER, Tokens.PERCENTAGE, Tokens.LENGTH,
                        Tokens.ANGLE, Tokens.TIME,
                        Tokens.FREQ, Tokens.STRING, Tokens.IDENT, Tokens.URI, Tokens.UNICODE_RANGE])){

                    value = tokenStream.token().value;
                    if (unary === null){
                        line = tokenStream.token().startLine;
                        col = tokenStream.token().startCol;
                    }
                    this._readWhitespace();
                } else {
                    token = this._hexcolor();
                    if (token === null){
                        if (unary === null){
                            line = tokenStream.LT(1).startLine;
                            col = tokenStream.LT(1).startCol;
                        }
                        if (value === null){
                            if (tokenStream.LA(3) == Tokens.EQUALS && this.options.ieFilters){
                                value = this._ie_function();
                            } else {
                                value = this._function();
                            }
                        }

                    } else {
                        value = token.value;
                        if (unary === null){
                            line = token.startLine;
                            col = token.startCol;
                        }
                    }

                }

                return value !== null ?
                        new PropertyValuePart(unary !== null ? unary + value : value, line, col) :
                        null;

            },

            _function: function(){

                var tokenStream = this._tokenStream,
                    functionText = null,
                    expr        = null,
                    lt;

                if (tokenStream.match(Tokens.FUNCTION)){
                    functionText = tokenStream.token().value;
                    this._readWhitespace();
                    expr = this._expr(true);
                    functionText += expr;
                    if (this.options.ieFilters && tokenStream.peek() == Tokens.EQUALS){
                        do {

                            if (this._readWhitespace()){
                                functionText += tokenStream.token().value;
                            }
                            if (tokenStream.LA(0) == Tokens.COMMA){
                                functionText += tokenStream.token().value;
                            }

                            tokenStream.match(Tokens.IDENT);
                            functionText += tokenStream.token().value;

                            tokenStream.match(Tokens.EQUALS);
                            functionText += tokenStream.token().value;
                            lt = tokenStream.peek();
                            while(lt != Tokens.COMMA && lt != Tokens.S && lt != Tokens.RPAREN){
                                tokenStream.get();
                                functionText += tokenStream.token().value;
                                lt = tokenStream.peek();
                            }
                        } while(tokenStream.match([Tokens.COMMA, Tokens.S]));
                    }

                    tokenStream.match(Tokens.RPAREN);
                    functionText += ")";
                    this._readWhitespace();
                }

                return functionText;
            },

            _ie_function: function(){

                var tokenStream = this._tokenStream,
                    functionText = null,
                    expr        = null,
                    lt;
                if (tokenStream.match([Tokens.IE_FUNCTION, Tokens.FUNCTION])){
                    functionText = tokenStream.token().value;

                    do {

                        if (this._readWhitespace()){
                            functionText += tokenStream.token().value;
                        }
                        if (tokenStream.LA(0) == Tokens.COMMA){
                            functionText += tokenStream.token().value;
                        }

                        tokenStream.match(Tokens.IDENT);
                        functionText += tokenStream.token().value;

                        tokenStream.match(Tokens.EQUALS);
                        functionText += tokenStream.token().value;
                        lt = tokenStream.peek();
                        while(lt != Tokens.COMMA && lt != Tokens.S && lt != Tokens.RPAREN){
                            tokenStream.get();
                            functionText += tokenStream.token().value;
                            lt = tokenStream.peek();
                        }
                    } while(tokenStream.match([Tokens.COMMA, Tokens.S]));

                    tokenStream.match(Tokens.RPAREN);
                    functionText += ")";
                    this._readWhitespace();
                }

                return functionText;
            },

            _hexcolor: function(){

                var tokenStream = this._tokenStream,
                    token = null,
                    color;

                if(tokenStream.match(Tokens.HASH)){

                    token = tokenStream.token();
                    color = token.value;
                    if (!/#[a-f0-9]{3,6}/i.test(color)){
                        throw new SyntaxError("Expected a hex color but found '" + color + "' at line " + token.startLine + ", col " + token.startCol + ".", token.startLine, token.startCol);
                    }
                    this._readWhitespace();
                }

                return token;
            },

            _keyframes: function(){
                var tokenStream = this._tokenStream,
                    token,
                    tt,
                    name,
                    prefix = "";

                tokenStream.mustMatch(Tokens.KEYFRAMES_SYM);
                token = tokenStream.token();
                if (/^@\-([^\-]+)\-/.test(token.value)) {
                    prefix = RegExp.$1;
                }

                this._readWhitespace();
                name = this._keyframe_name();

                this._readWhitespace();
                tokenStream.mustMatch(Tokens.LBRACE);

                this.fire({
                    type:   "startkeyframes",
                    name:   name,
                    prefix: prefix,
                    line:   token.startLine,
                    col:    token.startCol
                });

                this._readWhitespace();
                tt = tokenStream.peek();
                while(tt == Tokens.IDENT || tt == Tokens.PERCENTAGE) {
                    this._keyframe_rule();
                    this._readWhitespace();
                    tt = tokenStream.peek();
                }

                this.fire({
                    type:   "endkeyframes",
                    name:   name,
                    prefix: prefix,
                    line:   token.startLine,
                    col:    token.startCol
                });

                this._readWhitespace();
                tokenStream.mustMatch(Tokens.RBRACE);

            },

            _keyframe_name: function(){
                var tokenStream = this._tokenStream,
                    token;

                tokenStream.mustMatch([Tokens.IDENT, Tokens.STRING]);
                return SyntaxUnit.fromToken(tokenStream.token());
            },

            _keyframe_rule: function(){
                var tokenStream = this._tokenStream,
                    token,
                    keyList = this._key_list();

                this.fire({
                    type:   "startkeyframerule",
                    keys:   keyList,
                    line:   keyList[0].line,
                    col:    keyList[0].col
                });

                this._readDeclarations(true);

                this.fire({
                    type:   "endkeyframerule",
                    keys:   keyList,
                    line:   keyList[0].line,
                    col:    keyList[0].col
                });

            },

            _key_list: function(){
                var tokenStream = this._tokenStream,
                    token,
                    key,
                    keyList = [];
                keyList.push(this._key());

                this._readWhitespace();

                while(tokenStream.match(Tokens.COMMA)){
                    this._readWhitespace();
                    keyList.push(this._key());
                    this._readWhitespace();
                }

                return keyList;
            },

            _key: function(){

                var tokenStream = this._tokenStream,
                    token;

                if (tokenStream.match(Tokens.PERCENTAGE)){
                    return SyntaxUnit.fromToken(tokenStream.token());
                } else if (tokenStream.match(Tokens.IDENT)){
                    token = tokenStream.token();

                    if (/from|to/i.test(token.value)){
                        return SyntaxUnit.fromToken(token);
                    }

                    tokenStream.unget();
                }
                this._unexpectedToken(tokenStream.LT(1));
            },
            _skipCruft: function(){
                while(this._tokenStream.match([Tokens.S, Tokens.CDO, Tokens.CDC])){
                }
            },
            _readDeclarations: function(checkStart, readMargins){
                var tokenStream = this._tokenStream,
                    tt;


                this._readWhitespace();

                if (checkStart){
                    tokenStream.mustMatch(Tokens.LBRACE);
                }

                this._readWhitespace();

                try {

                    while(true){

                        if (tokenStream.match(Tokens.SEMICOLON) || (readMargins && this._margin())){
                        } else if (this._declaration()){
                            if (!tokenStream.match(Tokens.SEMICOLON)){
                                break;
                            }
                        } else {
                            break;
                        }
                        this._readWhitespace();
                    }

                    tokenStream.mustMatch(Tokens.RBRACE);
                    this._readWhitespace();

                } catch (ex) {
                    if (ex instanceof SyntaxError && !this.options.strict){
                        this.fire({
                            type:       "error",
                            error:      ex,
                            message:    ex.message,
                            line:       ex.line,
                            col:        ex.col
                        });
                        tt = tokenStream.advance([Tokens.SEMICOLON, Tokens.RBRACE]);
                        if (tt == Tokens.SEMICOLON){
                            this._readDeclarations(false, readMargins);
                        } else if (tt != Tokens.RBRACE){
                            throw ex;
                        }

                    } else {
                        throw ex;
                    }
                }

            },
            _readWhitespace: function(){

                var tokenStream = this._tokenStream,
                    ws = "";

                while(tokenStream.match(Tokens.S)){
                    ws += tokenStream.token().value;
                }

                return ws;
            },
            _unexpectedToken: function(token){
                throw new SyntaxError("Unexpected token '" + token.value + "' at line " + token.startLine + ", col " + token.startCol + ".", token.startLine, token.startCol);
            },
            _verifyEnd: function(){
                if (this._tokenStream.LA(1) != Tokens.EOF){
                    this._unexpectedToken(this._tokenStream.LT(1));
                }
            },
            _validateProperty: function(property, value){
                Validation.validate(property, value);
            },

            parse: function(input){
                this._tokenStream = new TokenStream(input, Tokens);
                this._stylesheet();
            },

            parseStyleSheet: function(input){
                return this.parse(input);
            },

            parseMediaQuery: function(input){
                this._tokenStream = new TokenStream(input, Tokens);
                var result = this._media_query();
                this._verifyEnd();
                return result;
            },
            parsePropertyValue: function(input){

                this._tokenStream = new TokenStream(input, Tokens);
                this._readWhitespace();

                var result = this._expr();
                this._readWhitespace();
                this._verifyEnd();
                return result;
            },
            parseRule: function(input){
                this._tokenStream = new TokenStream(input, Tokens);
                this._readWhitespace();

                var result = this._ruleset();
                this._readWhitespace();
                this._verifyEnd();
                return result;
            },
            parseSelector: function(input){

                this._tokenStream = new TokenStream(input, Tokens);
                this._readWhitespace();

                var result = this._selector();
                this._readWhitespace();
                this._verifyEnd();
                return result;
            },
            parseStyleAttribute: function(input){
                input += "}"; // for error recovery in _readDeclarations()
                this._tokenStream = new TokenStream(input, Tokens);
                this._readDeclarations();
            }
        };
    for (prop in additions){
        if (additions.hasOwnProperty(prop)){
            proto[prop] = additions[prop];
        }
    }

    return proto;
}();
var Properties = {
    "align-items"                   : "flex-start | flex-end | center | baseline | stretch",
    "align-content"                 : "flex-start | flex-end | center | space-between | space-around | stretch",
    "align-self"                    : "auto | flex-start | flex-end | center | baseline | stretch",
    "-webkit-align-items"           : "flex-start | flex-end | center | baseline | stretch",
    "-webkit-align-content"         : "flex-start | flex-end | center | space-between | space-around | stretch",
    "-webkit-align-self"            : "auto | flex-start | flex-end | center | baseline | stretch",
    "alignment-adjust"              : "auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical |  | ",
    "alignment-baseline"            : "baseline | use-script | before-edge | text-before-edge | after-edge | text-after-edge | central | middle | ideographic | alphabetic | hanging | mathematical",
    "animation"                     : 1,
    "animation-delay"               : { multi: "




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