r.js

/**
 * @license r.js 2.0.1 Copyright (c) 2010-2012, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*
 * This is a bootstrap script to allow running RequireJS in the command line
 * in either a Java/Rhino or Node environment. It is modified by the top-level
 * dist.js file to inject other files to completely enable this file. It is
 * the shell of the r.js file.
 */

/*jslint evil: true, nomen: true, sloppy: true */
/*global readFile: true, process: false, Packages: false, print: false,
console: false, java: false, module: false, requirejsVars */

var requirejs, require, define;
(function (console, args, readFileFunc) {

    var fileName, env, fs, vm, path, exec, rhinoContext, dir, nodeRequire,
        nodeDefine, exists, reqMain, loadedOptimizedLib, existsForNode,
        version = '2.0.1',
        jsSuffixRegExp = /\.js$/,
        commandOption = '',
        useLibLoaded = {},
        //Used by jslib/rhino/args.js
        rhinoArgs = args,
        readFile = typeof readFileFunc !== 'undefined' ? readFileFunc : null;

    function showHelp() {
        console.log('See https://github.com/jrburke/r.js for usage.');
    }

    if (typeof Packages !== 'undefined') {
        env = 'rhino';

        fileName = args[0];

        if (fileName && fileName.indexOf('-') === 0) {
            commandOption = fileName.substring(1);
            fileName = args[1];
        }

        //Set up execution context.
        rhinoContext = Packages.org.mozilla.javascript.ContextFactory.getGlobal().enterContext();

        exec = function (string, name) {
            return rhinoContext.evaluateString(this, string, name, 0, null);
        };

        exists = function (fileName) {
            return (new java.io.File(fileName)).exists();
        };

        //Define a console.log for easier logging. Don't
        //get fancy though.
        if (typeof console === 'undefined') {
            console = {
                log: function () {
                    print.apply(undefined, arguments);
                }
            };
        }
    } else if (typeof process !== 'undefined') {
        env = 'node';

        //Get the fs module via Node's require before it
        //gets replaced. Used in require/node.js
        fs = require('fs');
        vm = require('vm');
        path = require('path');
        //In Node 0.7+ existsSync is on fs.
        existsForNode = fs.existsSync || path.existsSync;

        nodeRequire = require;
        nodeDefine = define;
        reqMain = require.main;

        //Temporarily hide require and define to allow require.js to define
        //them.
        require = undefined;
        define = undefined;

        readFile = function (path) {
            return fs.readFileSync(path, 'utf8');
        };

        exec = function (string, name) {
            return vm.runInThisContext(this.requirejsVars.require.makeNodeWrapper(string),
                                       name ? fs.realpathSync(name) : '');
        };

        exists = function (fileName) {
            return existsForNode(fileName);
        };


        fileName = process.argv[2];

        if (fileName && fileName.indexOf('-') === 0) {
            commandOption = fileName.substring(1);
            fileName = process.argv[3];
        }
    }

    /** vim: et:ts=4:sw=4:sts=4
 * @license RequireJS 2.0.1 Copyright (c) 2010-2012, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */
/*jslint regexp: true, nomen: true */
/*global window, navigator, document, importScripts, jQuery, setTimeout, opera */


(function (global) {
    'use strict';

    var version = '2.0.1',
        commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg,
        cjsRequireRegExp = /require\s*\(\s*["']([^'"\s]+)["']\s*\)/g,
        jsSuffixRegExp = /\.js$/,
        currDirRegExp = /^\.\//,
        ostring = Object.prototype.toString,
        ap = Array.prototype,
        aps = ap.slice,
        apsp = ap.splice,
        isBrowser = !!(typeof window !== 'undefined' && navigator && document),
        isWebWorker = !isBrowser && typeof importScripts !== 'undefined',
        //PS3 indicates loaded and complete, but need to wait for complete
        //specifically. Sequence is 'loading', 'loaded', execution,
        // then 'complete'. The UA check is unfortunate, but not sure how
        //to feature test w/o causing perf issues.
        readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ?
                      /^complete$/ : /^(complete|loaded)$/,
        defContextName = '_',
        //Oh the tragedy, detecting opera. See the usage of isOpera for reason.
        isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]',
        contexts = {},
        cfg = {},
        globalDefQueue = [],
        useInteractive = false,
        req, s, head, baseElement, dataMain, src,
        interactiveScript, currentlyAddingScript, mainScript, subPath;

    function isFunction(it) {
        return ostring.call(it) === '[object Function]';
    }

    function isArray(it) {
        return ostring.call(it) === '[object Array]';
    }

    /**
     * Helper function for iterating over an array. If the func returns
     * a true value, it will break out of the loop.
     */
    function each(ary, func) {
        if (ary) {
            var i;
            for (i = 0; i < ary.length; i += 1) {
                if (func(ary[i], i, ary)) {
                    break;
                }
            }
        }
    }

    /**
     * Helper function for iterating over an array backwards. If the func
     * returns a true value, it will break out of the loop.
     */
    function eachReverse(ary, func) {
        if (ary) {
            var i;
            for (i = ary.length - 1; i > -1; i -= 1) {
                if (func(ary[i], i, ary)) {
                    break;
                }
            }
        }
    }

    function hasProp(obj, prop) {
        return obj.hasOwnProperty(prop);
    }

    /**
     * Cycles over properties in an object and calls a function for each
     * property value. If the function returns a truthy value, then the
     * iteration is stopped.
     */
    function eachProp(obj, func) {
        var prop;
        for (prop in obj) {
            if (obj.hasOwnProperty(prop)) {
                if (func(obj[prop], prop)) {
                    break;
                }
            }
        }
    }

    /**
     * Simple function to mix in properties from source into target,
     * but only if target does not already have a property of the same name.
     * This is not robust in IE for transferring methods that match
     * Object.prototype names, but the uses of mixin here seem unlikely to
     * trigger a problem related to that.
     */
    function mixin(target, source, force) {
        if (source) {
            eachProp(source, function (value, prop) {
                if (force || !hasProp(target, prop)) {
                    target[prop] = value;
                }
            });
        }
    }

    //Similar to Function.prototype.bind, but the 'this' object is specified
    //first, since it is easier to read/figure out what 'this' will be.
    function bind(obj, fn) {
        return function () {
            return fn.apply(obj, arguments);
        };
    }

    function scripts() {
        return document.getElementsByTagName('script');
    }

    //Allow getting a global that expressed in
    //dot notation, like 'a.b.c'.
    function getGlobal(value) {
        if (!value) {
            return value;
        }
        var g = global;
        each(value.split('.'), function (part) {
            g = g[part];
        });
        return g;
    }

    function makeContextModuleFunc(func, relMap, enableBuildCallback) {
        return function () {
            //A version of a require function that passes a moduleName
            //value for items that may need to
            //look up paths relative to the moduleName
            var args = aps.call(arguments, 0), lastArg;
            if (enableBuildCallback &&
                isFunction((lastArg = args[args.length - 1]))) {
                lastArg.__requireJsBuild = true;
            }
            args.push(relMap);
            return func.apply(null, args);
        };
    }

    function addRequireMethods(req, context, relMap) {
        each([
            ['toUrl'],
            ['undef'],
            ['defined', 'requireDefined'],
            ['specified', 'requireSpecified']
        ], function (item) {
            req[item[0]] = makeContextModuleFunc(context[item[1] || item[0]], relMap);
        });
    }

    /**
     * Constructs an error with a pointer to an URL with more information.
     * @param {String} id the error ID that maps to an ID on a web page.
     * @param {String} message human readable error.
     * @param {Error} [err] the original error, if there is one.
     *
     * @returns {Error}
     */
    function makeError(id, msg, err, requireModules) {
        var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id);
        e.requireType = id;
        e.requireModules = requireModules;
        if (err) {
            e.originalError = err;
        }
        return e;
    }

    if (typeof define !== 'undefined') {
        //If a define is already in play via another AMD loader,
        //do not overwrite.
        return;
    }

    if (typeof requirejs !== 'undefined') {
        if (isFunction(requirejs)) {
            //Do not overwrite and existing requirejs instance.
            return;
        }
        cfg = requirejs;
        requirejs = undefined;
    }

    //Allow for a require config object
    if (typeof require !== 'undefined' && !isFunction(require)) {
        //assume it is a config object.
        cfg = require;
        require = undefined;
    }

    function newContext(contextName) {
        var config = {
                waitSeconds: 7,
                baseUrl: './',
                paths: {},
                pkgs: {},
                shim: {}
            },
            registry = {},
            undefEvents = {},
            defQueue = [],
            defined = {},
            urlMap = {},
            urlFetched = {},
            requireCounter = 1,
            unnormalizedCounter = 1,
            //Used to track the order in which modules
            //should be executed, by the order they
            //load. Important for consistent cycle resolution
            //behavior.
            waitAry = [],
            inCheckLoaded, Module, context, handlers,
            checkLoadedTimeoutId;

        /**
         * Trims the . and .. from an array of path segments.
         * It will keep a leading path segment if a .. will become
         * the first path segment, to help with module name lookups,
         * which act like paths, but can be remapped. But the end result,
         * all paths that use this function should look normalized.
         * NOTE: this method MODIFIES the input array.
         * @param {Array} ary the array of path segments.
         */
        function trimDots(ary) {
            var i, part;
            for (i = 0; ary[i]; i+= 1) {
                part = ary[i];
                if (part === '.') {
                    ary.splice(i, 1);
                    i -= 1;
                } else if (part === '..') {
                    if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
                        //End of the line. Keep at least one non-dot
                        //path segment at the front so it can be mapped
                        //correctly to disk. Otherwise, there is likely
                        //no path mapping for a path starting with '..'.
                        //This can still fail, but catches the most reasonable
                        //uses of ..
                        break;
                    } else if (i > 0) {
                        ary.splice(i - 1, 2);
                        i -= 2;
                    }
                }
            }
        }

        /**
         * Given a relative module name, like ./something, normalize it to
         * a real name that can be mapped to a path.
         * @param {String} name the relative name
         * @param {String} baseName a real name that the name arg is relative
         * to.
         * @param {Boolean} applyMap apply the map config to the value. Should
         * only be done if this normalization is for a dependency ID.
         * @returns {String} normalized name
         */
        function normalize(name, baseName, applyMap) {
            var baseParts = baseName && baseName.split('/'),
                map = config.map,
                starMap = map && map['*'],
                pkgName, pkgConfig, mapValue, nameParts, i, j, nameSegment,
                foundMap;

            //Adjust any relative paths.
            if (name && name.charAt(0) === '.') {
                //If have a base name, try to normalize against it,
                //otherwise, assume it is a top-level require that will
                //be relative to baseUrl in the end.
                if (baseName) {
                    if (config.pkgs[baseName]) {
                        //If the baseName is a package name, then just treat it as one
                        //name to concat the name with.
                        baseParts = [baseName];
                    } else {
                        //Convert baseName to array, and lop off the last part,
                        //so that . matches that 'directory' and not name of the baseName's
                        //module. For instance, baseName of 'one/two/three', maps to
                        //'one/two/three.js', but we want the directory, 'one/two' for
                        //this normalization.
                        baseParts = baseParts.slice(0, baseParts.length - 1);
                    }

                    name = baseParts.concat(name.split('/'));
                    trimDots(name);

                    //Some use of packages may use a . path to reference the
                    //'main' module name, so normalize for that.
                    pkgConfig = config.pkgs[(pkgName = name[0])];
                    name = name.join('/');
                    if (pkgConfig && name === pkgName + '/' + pkgConfig.main) {
                        name = pkgName;
                    }
                } else if (name.indexOf('./') === 0) {
                    // No baseName, so this is ID is resolved relative
                    // to baseUrl, pull off the leading dot.
                    name = name.substring(2);
                }
            }

            //Apply map config if available.
            if (applyMap && (baseParts || starMap) && map) {
                nameParts = name.split('/');

                for (i = nameParts.length; i > 0; i -= 1) {
                    nameSegment = nameParts.slice(0, i).join('/');

                    if (baseParts) {
                        //Find the longest baseName segment match in the config.
                        //So, do joins on the biggest to smallest lengths of baseParts.
                        for (j = baseParts.length; j > 0; j -= 1) {
                            mapValue = map[baseParts.slice(0, j).join('/')];

                            //baseName segment has  config, find if it has one for
                            //this name.
                            if (mapValue) {
                                mapValue = mapValue[nameSegment];
                                if (mapValue) {
                                    //Match, update name to the new value.
                                    foundMap = mapValue;
                                    break;
                                }
                            }
                        }
                    }

                    if (!foundMap && starMap && starMap[nameSegment]) {
                        foundMap = starMap[nameSegment];
                    }

                    if (foundMap) {
                        nameParts.splice(0, i, foundMap);
                        name = nameParts.join('/');
                        break;
                    }
                }
            }

            return name;
        }

        function removeScript(name) {
            if (isBrowser) {
                each(scripts(), function (scriptNode) {
                    if (scriptNode.getAttribute('data-requiremodule') === name &&
                        scriptNode.getAttribute('data-requirecontext') === context.contextName) {
                        scriptNode.parentNode.removeChild(scriptNode);
                        return true;
                    }
                });
            }
        }

        function hasPathFallback(id) {
            var pathConfig = config.paths[id];
            if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) {
                removeScript(id);
                //Pop off the first array value, since it failed, and
                //retry
                pathConfig.shift();
                context.undef(id);
                context.require([id]);
                return true;
            }
        }

        /**
         * Creates a module mapping that includes plugin prefix, module
         * name, and path. If parentModuleMap is provided it will
         * also normalize the name via require.normalize()
         *
         * @param {String} name the module name
         * @param {String} [parentModuleMap] parent module map
         * for the module name, used to resolve relative names.
         * @param {Boolean} isNormalized: is the ID already normalized.
         * This is true if this call is done for a define() module ID.
         * @param {Boolean} applyMap: apply the map config to the ID.
         * Should only be true if this map is for a dependency.
         *
         * @returns {Object}
         */
        function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) {
            var index = name ? name.indexOf('!') : -1,
                prefix = null,
                parentName = parentModuleMap ? parentModuleMap.name : null,
                originalName = name,
                isDefine = true,
                normalizedName = '',
                url, pluginModule, suffix;

            //If no name, then it means it is a require call, generate an
            //internal name.
            if (!name) {
                isDefine = false;
                name = '_@r' + (requireCounter += 1);
            }

            if (index !== -1) {
                prefix = name.substring(0, index);
                name = name.substring(index + 1, name.length);
            }

            if (prefix) {
                prefix = normalize(prefix, parentName, applyMap);
                pluginModule = defined[prefix];
            }

            //Account for relative paths if there is a base name.
            if (name) {
                if (prefix) {
                    if (pluginModule && pluginModule.normalize) {
                        //Plugin is loaded, use its normalize method.
                        normalizedName = pluginModule.normalize(name, function (name) {
                            return normalize(name, parentName, applyMap);
                        });
                    } else {
                        normalizedName = normalize(name, parentName, applyMap);
                    }
                } else {
                    //A regular module.
                    normalizedName = normalize(name, parentName, applyMap);

                    url = urlMap[normalizedName];
                    if (!url) {
                        //Calculate url for the module, if it has a name.
                        //Use name here since nameToUrl also calls normalize,
                        //and for relative names that are outside the baseUrl
                        //this causes havoc. Was thinking of just removing
                        //parentModuleMap to avoid extra normalization, but
                        //normalize() still does a dot removal because of
                        //issue #142, so just pass in name here and redo
                        //the normalization. Paths outside baseUrl are just
                        //messy to support.
                        url = context.nameToUrl(name, null, parentModuleMap);

                        //Store the URL mapping for later.
                        urlMap[normalizedName] = url;
                    }
                }
            }

            //If the id is a plugin id that cannot be determined if it needs
            //normalization, stamp it with a unique ID so two matching relative
            //ids that may conflict can be separate.
            suffix = prefix && !pluginModule && !isNormalized ?
                     '_unnormalized' + (unnormalizedCounter += 1) :
                     '';

            return {
                prefix: prefix,
                name: normalizedName,
                parentMap: parentModuleMap,
                unnormalized: !!suffix,
                url: url,
                originalName: originalName,
                isDefine: isDefine,
                id: (prefix ?
                    prefix + '!' + normalizedName :
                    normalizedName) + suffix
            };
        }

        function getModule(depMap) {
            var id = depMap.id,
                mod = registry[id];

            if (!mod) {
                mod = registry[id] = new context.Module(depMap);
            }

            return mod;
        }

        function on(depMap, name, fn) {
            var id = depMap.id,
                mod = registry[id];

            if (hasProp(defined, id) &&
                (!mod || mod.defineEmitComplete)) {
                if (name === 'defined') {
                    fn(defined[id]);
                }
            } else {
                getModule(depMap).on(name, fn);
            }
        }

        function onError(err, errback) {
            var ids = err.requireModules,
                notified = false;

            if (errback) {
                errback(err);
            } else {
                each(ids, function (id) {
                    var mod = registry[id];
                    if (mod) {
                        //Set error on module, so it skips timeout checks.
                        mod.error = err;
                        if (mod.events.error) {
                            notified = true;
                            mod.emit('error', err);
                        }
                    }
                });

                if (!notified) {
                    req.onError(err);
                }
            }
        }

        /**
         * Internal method to transfer globalQueue items to this context's
         * defQueue.
         */
        function takeGlobalQueue() {
            //Push all the globalDefQueue items into the context's defQueue
            if (globalDefQueue.length) {
                //Array splice in the values since the context code has a
                //local var ref to defQueue, so cannot just reassign the one
                //on context.
                apsp.apply(defQueue,
                           [defQueue.length - 1, 0].concat(globalDefQueue));
                globalDefQueue = [];
            }
        }

        /**
         * Helper function that creates a require function object to give to
         * modules that ask for it as a dependency. It needs to be specific
         * per module because of the implication of path mappings that may
         * need to be relative to the module name.
         */
        function makeRequire(mod, enableBuildCallback, altRequire) {
            var relMap = mod && mod.map,
                modRequire = makeContextModuleFunc(altRequire || context.require,
                                                   relMap,
                                                   enableBuildCallback);

            addRequireMethods(modRequire, context, relMap);
            modRequire.isBrowser = isBrowser;

            return modRequire;
        }

        handlers = {
            'require': function (mod) {
                return makeRequire(mod);
            },
            'exports': function (mod) {
                mod.usingExports = true;
                if (mod.map.isDefine) {
                    return (mod.exports = defined[mod.map.id] = {});
                }
            },
            'module': function (mod) {
                return (mod.module = {
                    id: mod.map.id,
                    uri: mod.map.url,
                    config: function () {
                        return (config.config && config.config[mod.map.id]) || {};
                    },
                    exports: defined[mod.map.id]
                });
            }
        };

        function removeWaiting(id) {
            //Clean up machinery used for waiting modules.
            delete registry[id];

            each(waitAry, function (mod, i) {
                if (mod.map.id === id) {
                    waitAry.splice(i, 1);
                    if (!mod.defined) {
                        context.waitCount -= 1;
                    }
                    return true;
                }
            });
        }

        function findCycle(mod, traced) {
            var id = mod.map.id,
                depArray = mod.depMaps,
                foundModule;

            //Do not bother with unitialized modules or not yet enabled
            //modules.
            if (!mod.inited) {
                return;
            }

            //Found the cycle.
            if (traced[id]) {
                return mod;
            }

            traced[id] = true;

            //Trace through the dependencies.
            each(depArray, function (depMap) {
                var depId = depMap.id,
                    depMod = registry[depId];

                if (!depMod) {
                    return;
                }

                if (!depMod.inited || !depMod.enabled) {
                    //Dependency is not inited, so this cannot
                    //be used to determine a cycle.
                    foundModule = null;
                    delete traced[id];
                    return true;
                }

                return (foundModule = findCycle(depMod, traced));
            });

            return foundModule;
        }

        function forceExec(mod, traced, uninited) {
            var id = mod.map.id,
                depArray = mod.depMaps;

            if (!mod.inited || !mod.map.isDefine) {
                return;
            }

            if (traced[id]) {
                return defined[id];
            }

            traced[id] = mod;

            each(depArray, function(depMap) {
                var depId = depMap.id,
                    depMod = registry[depId],
                    value;

                if (handlers[depId]) {
                    return;
                }

                if (depMod) {
                    if (!depMod.inited || !depMod.enabled) {
                        //Dependency is not inited,
                        //so this module cannot be
                        //given a forced value yet.
                        uninited[id] = true;
                        return;
                    }

                    //Get the value for the current dependency
                    value = forceExec(depMod, traced, uninited);

                    //Even with forcing it may not be done,
                    //in particular if the module is waiting
                    //on a plugin resource.
                    if (!uninited[depId]) {
                        mod.defineDepById(depId, value);
                    }
                }
            });

            mod.check(true);

            return defined[id];
        }

        function modCheck(mod) {
            mod.check();
        }

        function checkLoaded() {
            var waitInterval = config.waitSeconds * 1000,
                //It is possible to disable the wait interval by using waitSeconds of 0.
                expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(),
                noLoads = [],
                stillLoading = false,
                needCycleCheck = true,
                map, modId, err, usingPathFallback;

            //Do not bother if this call was a result of a cycle break.
            if (inCheckLoaded) {
                return;
            }

            inCheckLoaded = true;

            //Figure out the state of all the modules.
            eachProp(registry, function (mod) {
                map = mod.map;
                modId = map.id;

                //Skip things that are not enabled or in error state.
                if (!mod.enabled) {
                    return;
                }

                if (!mod.error) {
                    //If the module should be executed, and it has not
                    //been inited and time is up, remember it.
                    if (!mod.inited && expired) {
                        if (hasPathFallback(modId)) {
                            usingPathFallback = true;
                            stillLoading = true;
                        } else {
                            noLoads.push(modId);
                            removeScript(modId);
                        }
                    } else if (!mod.inited && mod.fetched && map.isDefine) {
                        stillLoading = true;
                        if (!map.prefix) {
                            //No reason to keep looking for unfinished
                            //loading. If the only stillLoading is a
                            //plugin resource though, keep going,
                            //because it may be that a plugin resource
                            //is waiting on a non-plugin cycle.
                            return (needCycleCheck = false);
                        }
                    }
                }
            });

            if (expired && noLoads.length) {
                //If wait time expired, throw error of unloaded modules.
                err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads);
                err.contextName = context.contextName;
                return onError(err);
            }

            //Not expired, check for a cycle.
            if (needCycleCheck) {

                each(waitAry, function (mod) {
                    if (mod.defined) {
                        return;
                    }

                    var cycleMod = findCycle(mod, {}),
                        traced = {};

                    if (cycleMod) {
                        forceExec(cycleMod, traced, {});

                        //traced modules may have been
                        //removed from the registry, but
                        //their listeners still need to
                        //be called.
                        eachProp(traced, modCheck);
                    }
                });

                //Now that dependencies have
                //been satisfied, trigger the
                //completion check that then
                //notifies listeners.
                eachProp(registry, modCheck);
            }

            //If still waiting on loads, and the waiting load is something
            //other than a plugin resource, or there are still outstanding
            //scripts, then just try back later.
            if ((!expired || usingPathFallback) && stillLoading) {
                //Something is still waiting to load. Wait for it, but only
                //if a timeout is not already in effect.
                if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) {
                    checkLoadedTimeoutId = setTimeout(function () {
                        checkLoadedTimeoutId = 0;
                        checkLoaded();
                    }, 50);
                }
            }

            inCheckLoaded = false;
        }

        Module = function (map) {
            this.events = undefEvents[map.id] || {};
            this.map = map;
            this.shim = config.shim[map.id];
            this.depExports = [];
            this.depMaps = [];
            this.depMatched = [];
            this.pluginMaps = {};
            this.depCount = 0;

            /* this.exports this.factory
               this.depMaps = [],
               this.enabled, this.fetched
            */
        };

        Module.prototype = {
            init: function(depMaps, factory, errback, options) {
                options = options || {};

                //Do not do more inits if already done. Can happen if there
                //are multiple define calls for the same module. That is not
                //a normal, common case, but it is also not unexpected.
                if (this.inited) {
                    return;
                }

                this.factory = factory;

                if (errback) {
                    //Register for errors on this module.
                    this.on('error', errback);
                } else if (this.events.error) {
                    //If no errback already, but there are error listeners
                    //on this module, set up an errback to pass to the deps.
                    errback = bind(this, function (err) {
                        this.emit('error', err);
                    });
                }

                each(depMaps, bind(this, function (depMap, i) {
                    if (typeof depMap === 'string') {
                        depMap = makeModuleMap(depMap,
                                               (this.map.isDefine ? this.map : this.map.parentMap),
                                               false,
                                               true);
                        this.depMaps.push(depMap);
                    }

                    var handler = handlers[depMap.id];

                    if (handler) {
                        this.depExports[i] = handler(this);
                        return;
                    }

                    this.depCount += 1;

                    on(depMap, 'defined', bind(this, function (depExports) {
                        this.defineDep(i, depExports);
                        this.check();
                    }));

                    if (errback) {
                        on(depMap, 'error', errback);
                    }
                }));

                //Indicate this module has be initialized
                this.inited = true;

                this.ignore = options.ignore;

                //Could have option to init this module in enabled mode,
                //or could have been previously marked as enabled. However,
                //the dependencies are not known until init is called. So
                //if enabled previously, now trigger dependencies as enabled.
                if (options.enabled || this.enabled) {
                    //Enable this module and dependencies.
                    //Will call this.check()
                    this.enable();
                } else {
                    this.check();
                }
            },

            defineDepById: function (id, depExports) {
                var i;

                //Find the index for this dependency.
                each(this.depMaps, function (map, index) {
                    if (map.id === id) {
                        i = index;
                        return true;
                    }
                });

                return this.defineDep(i, depExports);
            },

            defineDep: function (i, depExports) {
                //Because of cycles, defined callback for a given
                //export can be called more than once.
                if (!this.depMatched[i]) {
                    this.depMatched[i] = true;
                    this.depCount -= 1;
                    this.depExports[i] = depExports;
                }
            },

            fetch: function () {
                if (this.fetched) {
                    return;
                }
                this.fetched = true;

                context.startTime = (new Date()).getTime();

                var map = this.map;

                //If the manager is for a plugin managed resource,
                //ask the plugin to load it now.
                if (map.prefix) {
                    this.callPlugin();
                } else if (this.shim) {
                    makeRequire(this, true)(this.shim.deps || [], bind(this, function () {
                        this.load();
                    }));
                } else {
                    //Regular dependency.
                    this.load();
                }
            },

            load: function() {
                var url = this.map.url;

                //Regular dependency.
                if (!urlFetched[url]) {
                    urlFetched[url] = true;
                    context.load(this.map.id, url);
                }
            },

            /**
             * Checks is the module is ready to define itself, and if so,
             * define it. If the silent argument is true, then it will just
             * define, but not notify listeners, and not ask for a context-wide
             * check of all loaded modules. That is useful for cycle breaking.
             */
            check: function (silent) {
                if (!this.enabled) {
                    return;
                }

                var id = this.map.id,
                    depExports = this.depExports,
                    exports = this.exports,
                    factory = this.factory,
                    err, cjsModule;

                if (!this.inited) {
                    this.fetch();
                } else if (this.error) {
                    this.emit('error', this.error);
                } else if (!this.defining) {
                    //The factory could trigger another require call
                    //that would result in checking this module to
                    //define itself again. If already in the process
                    //of doing that, skip this work.
                    this.defining = true;

                    if (this.depCount < 1 && !this.defined) {
                        if (isFunction(factory)) {
                            //If there is an error listener, favor passing
                            //to that instead of throwing an error.
                            if (this.events.error) {
                                try {
                                    exports = context.execCb(id, factory, depExports, exports);
                                } catch (e) {
                                    err = e;
                                }
                            } else {
                                exports = context.execCb(id, factory, depExports, exports);
                            }

                            if (this.map.isDefine) {
                                //If setting exports via 'module' is in play,
                                //favor that over return value and exports. After that,
                                //favor a non-undefined return value over exports use.
                                cjsModule = this.module;
                                if (cjsModule &&
                                    cjsModule.exports !== undefined &&
                                    //Make sure it is not already the exports value
                                    cjsModule.exports !== this.exports) {
                                    exports = cjsModule.exports;
                                } else if (exports === undefined && this.usingExports) {
                                    //exports already set the defined value.
                                    exports = this.exports;
                                }
                            }

                            if (err) {
                                err.requireMap = this.map;
                                err.requireModules = [this.map.id];
                                err.requireType = 'define';
                                return onError((this.error = err));
                            }

                        } else {
                            //Just a literal value
                            exports = factory;
                        }

                        this.exports = exports;

                        if (this.map.isDefine && !this.ignore) {
                            defined[id] = exports;

                            if (req.onResourceLoad) {
                                req.onResourceLoad(context, this.map, this.depMaps);
                            }
                        }

                        //Clean up
                        delete registry[id];

                        this.defined = true;
                        context.waitCount -= 1;
                        if (context.waitCount === 0) {
                            //Clear the wait array used for cycles.
                            waitAry = [];
                        }
                    }

                    //Finished the define stage. Allow calling check again
                    //to allow define notifications below in the case of a
                    //cycle.
                    this.defining = false;

                    if (!silent) {
                        if (this.defined && !this.defineEmitted) {
                            this.defineEmitted = true;
                            this.emit('defined', this.exports);
                            this.defineEmitComplete = true;
                        }
                    }
                }
            },

            callPlugin: function() {
                var map = this.map,
                    id = map.id,
                    pluginMap = makeModuleMap(map.prefix, null, false, true);

                on(pluginMap, 'defined', bind(this, function (plugin) {
                    var name = this.map.name,
                        parentName = this.map.parentMap ? this.map.parentMap.name : null,
                        load, normalizedMap, normalizedMod;

                    //If current map is not normalized, wait for that
                    //normalized name to load instead of continuing.
                    if (this.map.unnormalized) {
                        //Normalize the ID if the plugin allows it.
                        if (plugin.normalize) {
                            name = plugin.normalize(name, function (name) {
                                return normalize(name, parentName, true);
                            }) || '';
                        }

                        normalizedMap = makeModuleMap(map.prefix + '!' + name);
                        on(normalizedMap,
                           'defined', bind(this, function (value) {
                            this.init([], function () { return value; }, null, {
                                enabled: true,
                                ignore: true
                            });
                        }));
                        normalizedMod = registry[normalizedMap.id];
                        if (normalizedMod) {
                            if (this.events.error) {
                                normalizedMod.on('error', bind(this, function (err) {
                                    this.emit('error', err);
                                }));
                            }
                            normalizedMod.enable();
                        }

                        return;
                    }

                    load = bind(this, function (value) {
                        this.init([], function () { return value; }, null, {
                            enabled: true
                        });
                    });

                    load.error = bind(this, function (err) {
                        this.inited = true;
                        this.error = err;
                        err.requireModules = [id];

                        //Remove temp unnormalized modules for this module,
                        //since they will never be resolved otherwise now.
                        eachProp(registry, function (mod) {
                            if (mod.map.id.indexOf(id + '_unnormalized') === 0) {
                                removeWaiting(mod.map.id);
                            }
                        });

                        onError(err);
                    });

                    //Allow plugins to load other code without having to know the
                    //context or how to 'complete' the load.
                    load.fromText = function (moduleName, text) {
                        /*jslint evil: true */
                        var hasInteractive = useInteractive;

                        //Turn off interactive script matching for IE for any define
                        //calls in the text, then turn it back on at the end.
                        if (hasInteractive) {
                            useInteractive = false;
                        }

                        req.exec(text);

                        if (hasInteractive) {
                            useInteractive = true;
                        }

                        //Support anonymous modules.
                        context.completeLoad(moduleName);
                    };

                    //Use parentName here since the plugin's name is not reliable,
                    //could be some weird string with no path that actually wants to
                    //reference the parentName's path.
                    plugin.load(map.name, makeRequire(map.parentMap, true, function (deps, cb) {
                        return context.require(deps, cb);
                    }), load, config);
                }));

                context.enable(pluginMap, this);
                this.pluginMaps[pluginMap.id] = pluginMap;
            },

            enable: function () {
                this.enabled = true;

                if (!this.waitPushed) {
                    waitAry.push(this);
                    context.waitCount += 1;
                    this.waitPushed = true;
                }

                //Enable each dependency
                each(this.depMaps, bind(this, function (map) {
                    var id = map.id,
                        mod = registry[id];
                    //Skip special modules like 'require', 'exports', 'module'
                    //Also, don't call enable if it is already enabled,
                    //important in circular dependency cases.
                    if (!handlers[id] && mod && !mod.enabled) {
                        context.enable(map, this);
                    }
                }));

                //Enable each plugin that is used in
                //a dependency
                eachProp(this.pluginMaps, bind(this, function (pluginMap) {
                    var mod = registry[pluginMap.id];
                    if (mod && !mod.enabled) {
                        context.enable(pluginMap, this);
                    }
                }));

                this.check();
            },

            on: function(name, cb) {
                var cbs = this.events[name];
                if (!cbs) {
                    cbs = this.events[name] = [];
                }
                cbs.push(cb);
            },

            emit: function (name, evt) {
                each(this.events[name], function (cb) {
                    cb(evt);
                });
                if (name === 'error') {
                    //Now that the error handler was triggered, remove
                    //the listeners, since this broken Module instance
                    //can stay around for a while in the registry/waitAry.
                    delete this.events[name];
                }
            }
        };

        function callGetModule(args) {
            getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]);
        }

        function removeListener(node, func, name, ieName) {
            //Favor detachEvent because of IE9
            //issue, see attachEvent/addEventListener comment elsewhere
            //in this file.
            if (node.detachEvent && !isOpera) {
                //Probably IE. If not it will throw an error, which will be
                //useful to know.
                if (ieName) {
                    node.detachEvent(ieName, func);
                }
            } else {
                node.removeEventListener(name, func, false);
            }
        }

        /**
         * Given an event from a script node, get the requirejs info from it,
         * and then removes the event listeners on the node.
         * @param {Event} evt
         * @returns {Object}
         */
        function getScriptData(evt) {
            //Using currentTarget instead of target for Firefox 2.0's sake. Not
            //all old browsers will be supported, but this one was easy enough
            //to support and still makes sense.
            var node = evt.currentTarget || evt.srcElement;

            //Remove the listeners once here.
            removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange');
            removeListener(node, context.onScriptError, 'error');

            return {
                node: node,
                id: node && node.getAttribute('data-requiremodule')
            };
        }

        return (context = {
            config: config,
            contextName: contextName,
            registry: registry,
            defined: defined,
            urlMap: urlMap,
            urlFetched: urlFetched,
            waitCount: 0,
            defQueue: defQueue,
            Module: Module,
            makeModuleMap: makeModuleMap,

            /**
             * Set a configuration for the context.
             * @param {Object} cfg config object to integrate.
             */
            configure: function (cfg) {
                //Make sure the baseUrl ends in a slash.
                if (cfg.baseUrl) {
                    if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') {
                        cfg.baseUrl += '/';
                    }
                }

                //Save off the paths and packages since they require special processing,
                //they are additive.
                var paths = config.paths,
                    pkgs = config.pkgs,
                    shim = config.shim,
                    map = config.map || {};

                //Mix in the config values, favoring the new values over
                //existing ones in context.config.
                mixin(config, cfg, true);

                //Merge paths.
                mixin(paths, cfg.paths, true);
                config.paths = paths;

                //Merge map
                if (cfg.map) {
                    mixin(map, cfg.map, true);
                    config.map = map;
                }

                //Merge shim
                if (cfg.shim) {
                    eachProp(cfg.shim, function (value, id) {
                        //Normalize the structure
                        if (isArray(value)) {
                            value = {
                                deps: value
                            };
                        }
                        if (value.exports && !value.exports.__buildReady) {
                            value.exports = context.makeShimExports(value.exports);
                        }
                        shim[id] = value;
                    });
                    config.shim = shim;
                }

                //Adjust packages if necessary.
                if (cfg.packages) {
                    each(cfg.packages, function (pkgObj) {
                        var location;

                        pkgObj = typeof pkgObj === 'string' ? { name: pkgObj } : pkgObj;
                        location = pkgObj.location;

                        //Create a brand new object on pkgs, since currentPackages can
                        //be passed in again, and config.pkgs is the internal transformed
                        //state for all package configs.
                        pkgs[pkgObj.name] = {
                            name: pkgObj.name,
                            location: location || pkgObj.name,
                            //Remove leading dot in main, so main paths are normalized,
                            //and remove any trailing .js, since different package
                            //envs have different conventions: some use a module name,
                            //some use a file name.
                            main: (pkgObj.main || 'main')
                                  .replace(currDirRegExp, '')
                                  .replace(jsSuffixRegExp, '')
                        };
                    });

                    //Done with modifications, assing packages back to context config
                    config.pkgs = pkgs;
                }

                //If a deps array or a config callback is specified, then call
                //require with those args. This is useful when require is defined as a
                //config object before require.js is loaded.
                if (cfg.deps || cfg.callback) {
                    context.require(cfg.deps || [], cfg.callback);
                }
            },

            makeShimExports: function (exports) {
                var func;
                if (typeof exports === 'string') {
                    func = function () {
                        return getGlobal(exports);
                    };
                    //Save the exports for use in nodefine checking.
                    func.exports = exports;
                    return func;
                } else {
                    return function () {
                        return exports.apply(global, arguments);
                    };
                }
            },

            requireDefined: function (id, relMap) {
                return hasProp(defined, makeModuleMap(id, relMap, false, true).id);
            },

            requireSpecified: function (id, relMap) {
                id = makeModuleMap(id, relMap, false, true).id;
                return hasProp(defined, id) || hasProp(registry, id);
            },

            require: function (deps, callback, errback, relMap) {
                var moduleName, id, map, requireMod, args;
                if (typeof deps === 'string') {
                    if (isFunction(callback)) {
                        //Invalid call
                        return onError(makeError('requireargs', 'Invalid require call'), errback);
                    }

                    //Synchronous access to one module. If require.get is
                    //available (as in the Node adapter), prefer that.
                    //In this case deps is the moduleName and callback is
                    //the relMap
                    if (req.get) {
                        return req.get(context, deps, callback);
                    }

                    //Just return the module wanted. In this scenario, the
                    //second arg (if passed) is just the relMap.
                    moduleName = deps;
                    relMap = callback;

                    //Normalize module name, if it contains . or ..
                    map = makeModuleMap(moduleName, relMap, false, true);
                    id = map.id;

                    if (!hasProp(defined, id)) {
                        return onError(makeError('notloaded', 'Module name "' +
                                    id +
                                    '" has not been loaded yet for context: ' +
                                    contextName));
                    }
                    return defined[id];
                }

                //Callback require. Normalize args. if callback or errback is
                //not a function, it means it is a relMap. Test errback first.
                if (errback && !isFunction(errback)) {
                    relMap = errback;
                    errback = undefined;
                }
                if (callback && !isFunction(callback)) {
                    relMap = callback;
                    callback = undefined;
                }

                //Any defined modules in the global queue, intake them now.
                takeGlobalQueue();

                //Make sure any remaining defQueue items get properly processed.
                while (defQueue.length) {
                    args = defQueue.shift();
                    if (args[0] === null) {
                        return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1]));
                    } else {
                        //args are id, deps, factory. Should be normalized by the
                        //define() function.
                        callGetModule(args);
                    }
                }

                //Mark all the dependencies as needing to be loaded.
                requireMod = getModule(makeModuleMap(null, relMap));

                requireMod.init(deps, callback, errback, {
                    enabled: true
                });

                checkLoaded();

                return context.require;
            },

            undef: function (id) {
                var map = makeModuleMap(id, null, true),
                    mod = registry[id];

                delete defined[id];
                delete urlMap[id];
                delete urlFetched[map.url];
                delete undefEvents[id];

                if (mod) {
                    //Hold on to listeners in case the
                    //module will be attempted to be reloaded
                    //using a different config.
                    if (mod.events.defined) {
                        undefEvents[id] = mod.events;
                    }

                    removeWaiting(id);
                }
            },

            /**
             * Called to enable a module if it is still in the registry
             * awaiting enablement. parent module is passed in for context,
             * used by the optimizer.
             */
            enable: function (depMap, parent) {
                var mod = registry[depMap.id];
                if (mod) {
                    getModule(depMap).enable();
                }
            },

            /**
             * Internal method used by environment adapters to complete a load event.
             * A load event could be a script load or just a load pass from a synchronous
             * load call.
             * @param {String} moduleName the name of the module to potentially complete.
             */
            completeLoad: function (moduleName) {
                var shim = config.shim[moduleName] || {},
                shExports = shim.exports && shim.exports.exports,
                found, args, mod;

                takeGlobalQueue();

                while (defQueue.length) {
                    args = defQueue.shift();
                    if (args[0] === null) {
                        args[0] = moduleName;
                        //If already found an anonymous module and bound it
                        //to this name, then this is some other anon module
                        //waiting for its completeLoad to fire.
                        if (found) {
                            break;
                        }
                        found = true;
                    } else if (args[0] === moduleName) {
                        //Found matching define call for this script!
                        found = true;
                    }

                    callGetModule(args);
                }

                //Do this after the cycle of callGetModule in case the result
                //of those calls/init calls changes the registry.
                mod = registry[moduleName];

                if (!found &&
                    !defined[moduleName] &&
                    mod && !mod.inited) {
                    if (config.enforceDefine && (!shExports || !getGlobal(shExports))) {
                        if (hasPathFallback(moduleName)) {
                            return;
                        } else {
                            return onError(makeError('nodefine',
                                             'No define call for ' + moduleName,
                                             null,
                                             [moduleName]));
                        }
                    } else {
                        //A script that does not call define(), so just simulate
                        //the call for it.
                        callGetModule([moduleName, (shim.deps || []), shim.exports]);
                    }
                }

                checkLoaded();
            },

            /**
             * Converts a module name + .extension into an URL path.
             * *Requires* the use of a module name. It does not support using
             * plain URLs like nameToUrl.
             */
            toUrl: function (moduleNamePlusExt, relModuleMap) {
                var index = moduleNamePlusExt.lastIndexOf('.'),
                    ext = null;

                if (index !== -1) {
                    ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length);
                    moduleNamePlusExt = moduleNamePlusExt.substring(0, index);
                }

                return context.nameToUrl(moduleNamePlusExt, ext, relModuleMap);
            },

            /**
             * Converts a module name to a file path. Supports cases where
             * moduleName may actually be just an URL.
             */
            nameToUrl: function (moduleName, ext, relModuleMap) {
                var paths, pkgs, pkg, pkgPath, syms, i, parentModule, url,
                    parentPath;

                //Normalize module name if have a base relative module name to work from.
                moduleName = normalize(moduleName, relModuleMap && relModuleMap.id, true);

                //If a colon is in the URL, it indicates a protocol is used and it is just
                //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?)
                //or ends with .js, then assume the user meant to use an url and not a module id.
                //The slash is important for protocol-less URLs as well as full paths.
                if (req.jsExtRegExp.test(moduleName)) {
                    //Just a plain path, not module name lookup, so just return it.
                    //Add extension if it is included. This is a bit wonky, only non-.js things pass
                    //an extension, this method probably needs to be reworked.
                    url = moduleName + (ext || '');
                } else {
                    //A module that needs to be converted to a path.
                    paths = config.paths;
                    pkgs = config.pkgs;

                    syms = moduleName.split('/');
                    //For each module name segment, see if there is a path
                    //registered for it. Start with most specific name
                    //and work up from it.
                    for (i = syms.length; i > 0; i -= 1) {
                        parentModule = syms.slice(0, i).join('/');
                        pkg = pkgs[parentModule];
                        parentPath = paths[parentModule];
                        if (parentPath) {
                            //If an array, it means there are a few choices,
                            //Choose the one that is desired
                            if (isArray(parentPath)) {
                                parentPath = parentPath[0];
                            }
                            syms.splice(0, i, parentPath);
                            break;
                        } else if (pkg) {
                            //If module name is just the package name, then looking
                            //for the main module.
                            if (moduleName === pkg.name) {
                                pkgPath = pkg.location + '/' + pkg.main;
                            } else {
                                pkgPath = pkg.location;
                            }
                            syms.splice(0, i, pkgPath);
                            break;
                        }
                    }

                    //Join the path parts together, then figure out if baseUrl is needed.
                    url = syms.join('/') + (ext || '.js');
                    url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url;
                }

                return config.urlArgs ? url +
                                        ((url.indexOf('?') === -1 ? '?' : '&') +
                                         config.urlArgs) : url;
            },

            //Delegates to req.load. Broken out as a separate function to
            //allow overriding in the optimizer.
            load: function (id, url) {
                req.load(context, id, url);
            },

            /**
             * Executes a module callack function. Broken out as a separate function
             * solely to allow the build system to sequence the files in the built
             * layer in the right sequence.
             *
             * @private
             */
            execCb: function (name, callback, args, exports) {
                return callback.apply(exports, args);
            },

            /**
             * callback for script loads, used to check status of loading.
             *
             * @param {Event} evt the event from the browser for the script
             * that was loaded.
             */
            onScriptLoad: function (evt) {
                //Using currentTarget instead of target for Firefox 2.0's sake. Not
                //all old browsers will be supported, but this one was easy enough
                //to support and still makes sense.
                if (evt.type === 'load' ||
                    (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) {
                    //Reset interactive script so a script node is not held onto for
                    //to long.
                    interactiveScript = null;

                    //Pull out the name of the module and the context.
                    var data = getScriptData(evt);
                    context.completeLoad(data.id);
                }
            },

            /**
             * Callback for script errors.
             */
            onScriptError: function (evt) {
                var data = getScriptData(evt);
                if (!hasPathFallback(data.id)) {
                    return onError(makeError('scripterror', 'Script error', evt, [data.id]));
                }
            }
        });
    }

    /**
     * Main entry point.
     *
     * If the only argument to require is a string, then the module that
     * is represented by that string is fetched for the appropriate context.
     *
     * If the first argument is an array, then it will be treated as an array
     * of dependency string names to fetch. An optional function callback can
     * be specified to execute when all of those dependencies are available.
     *
     * Make a local req variable to help Caja compliance (it assumes things
     * on a require that are not standardized), and to give a short
     * name for minification/local scope use.
     */
    req = requirejs = function (deps, callback, errback, optional) {

        //Find the right context, use default
        var contextName = defContextName,
            context, config;

        // Determine if have config object in the call.
        if (!isArray(deps) && typeof deps !== 'string') {
            // deps is a config object
            config = deps;
            if (isArray(callback)) {
                // Adjust args if there are dependencies
                deps = callback;
                callback = errback;
                errback = optional;
            } else {
                deps = [];
            }
        }

        if (config && config.context) {
            contextName = config.context;
        }

        context = contexts[contextName];
        if (!context) {
            context = contexts[contextName] = req.s.newContext(contextName);
        }

        if (config) {
            context.configure(config);
        }

        return context.require(deps, callback, errback);
    };

    /**
     * Support require.config() to make it easier to cooperate with other
     * AMD loaders on globally agreed names.
     */
    req.config = function (config) {
        return req(config);
    };

    /**
     * Export require as a global, but only if it does not already exist.
     */
    if (!require) {
        require = req;
    }

    req.version = version;

    //Used to filter out dependencies that are already paths.
    req.jsExtRegExp = /^\/|:|\?|\.js$/;
    req.isBrowser = isBrowser;
    s = req.s = {
        contexts: contexts,
        newContext: newContext
    };

    //Create default context.
    req({});

    //Exports some context-sensitive methods on global require, using
    //default context if no context specified.
    addRequireMethods(req, contexts[defContextName]);

    if (isBrowser) {
        head = s.head = document.getElementsByTagName('head')[0];
        //If BASE tag is in play, using appendChild is a problem for IE6.
        //When that browser dies, this can be removed. Details in this jQuery bug:
        //http://dev.jquery.com/ticket/2709
        baseElement = document.getElementsByTagName('base')[0];
        if (baseElement) {
            head = s.head = baseElement.parentNode;
        }
    }

    /**
     * Any errors that require explicitly generates will be passed to this
     * function. Intercept/override it if you want custom error handling.
     * @param {Error} err the error object.
     */
    req.onError = function (err) {
        throw err;
    };

    /**
     * Does the request to load a module for the browser case.
     * Make this a separate function to allow other environments
     * to override it.
     *
     * @param {Object} context the require context to find state.
     * @param {String} moduleName the name of the module.
     * @param {Object} url the URL to the module.
     */
    req.load = function (context, moduleName, url) {
        var config = (context && context.config) || {},
            node;
        if (isBrowser) {
            //In the browser so use a script tag
            node = config.xhtml ?
                   document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') :
                   document.createElement('script');
            node.type = config.scriptType || 'text/javascript';
            node.charset = 'utf-8';

            node.setAttribute('data-requirecontext', context.contextName);
            node.setAttribute('data-requiremodule', moduleName);

            //Set up load listener. Test attachEvent first because IE9 has
            //a subtle issue in its addEventListener and script onload firings
            //that do not match the behavior of all other browsers with
            //addEventListener support, which fire the onload event for a
            //script right after the script execution. See:
            //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution
            //UNFORTUNATELY Opera implements attachEvent but does not follow the script
            //script execution mode.
            if (node.attachEvent &&
                //Check if node.attachEvent is artificially added by custom script or
                //natively supported by browser
                //read https://github.com/jrburke/requirejs/issues/187
                //if we can NOT find [native code] then it must NOT natively supported.
                //in IE8, node.attachEvent does not have toString()
                //Note the test for "[native code" with no closing brace, see:
                //https://github.com/jrburke/requirejs/issues/273
                !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) &&
                !isOpera) {
                //Probably IE. IE (at least 6-8) do not fire
                //script onload right after executing the script, so
                //we cannot tie the anonymous define call to a name.
                //However, IE reports the script as being in 'interactive'
                //readyState at the time of the define call.
                useInteractive = true;

                node.attachEvent('onreadystatechange', context.onScriptLoad);
                //It would be great to add an error handler here to catch
                //404s in IE9+. However, onreadystatechange will fire before
                //the error handler, so that does not help. If addEvenListener
                //is used, then IE will fire error before load, but we cannot
                //use that pathway given the connect.microsoft.com issue
                //mentioned above about not doing the 'script execute,
                //then fire the script load event listener before execute
                //next script' that other browsers do.
                //Best hope: IE10 fixes the issues,
                //and then destroys all installs of IE 6-9.
                //node.attachEvent('onerror', context.onScriptError);
            } else {
                node.addEventListener('load', context.onScriptLoad, false);
                node.addEventListener('error', context.onScriptError, false);
            }
            node.src = url;

            //For some cache cases in IE 6-8, the script executes before the end
            //of the appendChild execution, so to tie an anonymous define
            //call to the module name (which is stored on the node), hold on
            //to a reference to this node, but clear after the DOM insertion.
            currentlyAddingScript = node;
            if (baseElement) {
                head.insertBefore(node, baseElement);
            } else {
                head.appendChild(node);
            }
            currentlyAddingScript = null;

            return node;
        } else if (isWebWorker) {
            //In a web worker, use importScripts. This is not a very
            //efficient use of importScripts, importScripts will block until
            //its script is downloaded and evaluated. However, if web workers
            //are in play, the expectation that a build has been done so that
            //only one script needs to be loaded anyway. This may need to be
            //reevaluated if other use cases become common.
            importScripts(url);

            //Account for anonymous modules
            context.completeLoad(moduleName);
        }
    };

    function getInteractiveScript() {
        if (interactiveScript && interactiveScript.readyState === 'interactive') {
            return interactiveScript;
        }

        eachReverse(scripts(), function (script) {
            if (script.readyState === 'interactive') {
                return (interactiveScript = script);
            }
        });
        return interactiveScript;
    }

    //Look for a data-main script attribute, which could also adjust the baseUrl.
    if (isBrowser) {
        //Figure out baseUrl. Get it from the script tag with require.js in it.
        eachReverse(scripts(), function (script) {
            //Set the 'head' where we can append children by
            //using the script's parent.
            if (!head) {
                head = script.parentNode;
            }

            //Look for a data-main attribute to set main script for the page
            //to load. If it is there, the path to data main becomes the
            //baseUrl, if it is not already set.
            dataMain = script.getAttribute('data-main');
            if (dataMain) {
                if (!cfg.baseUrl) {
                    //Pull off the directory of data-main for use as the
                    //baseUrl.
                    src = dataMain.split('/');
                    mainScript = src.pop();
                    subPath = src.length ? src.join('/')  + '/' : './';

                    //Set final config.
                    cfg.baseUrl = subPath;
                    //Strip off any trailing .js since dataMain is now
                    //like a module name.
                    dataMain = mainScript.replace(jsSuffixRegExp, '');
                }

                //Put the data-main script in the files to load.
                cfg.deps = cfg.deps ? cfg.deps.concat(dataMain) : [dataMain];

                return true;
            }
        });
    }

    /**
     * The function that handles definitions of modules. Differs from
     * require() in that a string for the module should be the first argument,
     * and the function to execute after dependencies are loaded should
     * return a value to define the module corresponding to the first argument's
     * name.
     */
    define = function (name, deps, callback) {
        var node, context;

        //Allow for anonymous functions
        if (typeof name !== 'string') {
            //Adjust args appropriately
            callback = deps;
            deps = name;
            name = null;
        }

        //This module may not have dependencies
        if (!isArray(deps)) {
            callback = deps;
            deps = [];
        }

        //If no name, and callback is a function, then figure out if it a
        //CommonJS thing with dependencies.
        if (!deps.length && isFunction(callback)) {
            //Remove comments from the callback string,
            //look for require calls, and pull them into the dependencies,
            //but only if there are function args.
            if (callback.length) {
                callback
                    .toString()
                    .replace(commentRegExp, '')
                    .replace(cjsRequireRegExp, function (match, dep) {
                        deps.push(dep);
                    });

                //May be a CommonJS thing even without require calls, but still
                //could use exports, and module. Avoid doing exports and module
                //work though if it just needs require.
                //REQUIRES the function to expect the CommonJS variables in the
                //order listed below.
                deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps);
            }
        }

        //If in IE 6-8 and hit an anonymous define() call, do the interactive
        //work.
        if (useInteractive) {
            node = currentlyAddingScript || getInteractiveScript();
            if (node) {
                if (!name) {
                    name = node.getAttribute('data-requiremodule');
                }
                context = contexts[node.getAttribute('data-requirecontext')];
            }
        }

        //Always save off evaluating the def call until the script onload handler.
        //This allows multiple modules to be in a file without prematurely
        //tracing dependencies, and allows for anonymous module support,
        //where the module name is not known until the script onload event
        //occurs. If no context, use the global queue, and get it processed
        //in the onscript load callback.
        (context ? context.defQueue : globalDefQueue).push([name, deps, callback]);
    };

    define.amd = {
        jQuery: true
    };


    /**
     * Executes the text. Normally just uses eval, but can be modified
     * to use a better, environment-specific call. Only used for transpiling
     * loader plugins, not for plain JS modules.
     * @param {String} text the text to execute/evaluate.
     */
    req.exec = function (text) {
        /*jslint evil: true */
        return eval(text);
    };

    //Set up with config info.
    req(cfg);
}(this));


    if (env === 'rhino') {
        /**
 * @license RequireJS rhino Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint */
/*global require: false, java: false, load: false */

(function () {
    'use strict';
    require.load = function (context, moduleName, url) {

        load(url);

        //Support anonymous modules.
        context.completeLoad(moduleName);
    };

}());
    } else if (env === 'node') {
        this.requirejsVars = {
            require: require,
            requirejs: require,
            define: define,
            nodeRequire: nodeRequire
        };
        require.nodeRequire = nodeRequire;

        /**
 * @license RequireJS node Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint regexp: false */
/*global require: false, define: false, requirejsVars: false, process: false */

/**
 * This adapter assumes that x.js has loaded it and set up
 * some variables. This adapter just allows limited RequireJS
 * usage from within the requirejs directory. The general
 * node adapater is r.js.
 */

(function () {
    'use strict';

    var nodeReq = requirejsVars.nodeRequire,
        req = requirejsVars.require,
        def = requirejsVars.define,
        fs = nodeReq('fs'),
        path = nodeReq('path'),
        vm = nodeReq('vm'),
        //In Node 0.7+ existsSync is on fs.
        exists = fs.existsSync || path.existsSync;

    //Supply an implementation that allows synchronous get of a module.
    req.get = function (context, moduleName, relModuleMap) {
        if (moduleName === "require" || moduleName === "exports" || moduleName === "module") {
            req.onError(new Error("Explicit require of " + moduleName + " is not allowed."));
        }

        var ret,
            moduleMap = context.makeModuleMap(moduleName, relModuleMap);

        //Normalize module name, if it contains . or ..
        moduleName = moduleMap.id;

        if (context.defined.hasOwnProperty(moduleName)) {
            ret = context.defined[moduleName];
        } else {
            if (ret === undefined) {
                //Try to dynamically fetch it.
                req.load(context, moduleName, moduleMap.url);
                //The above call is sync, so can do the next thing safely.
                ret = context.defined[moduleName];
            }
        }

        return ret;
    };

    //Add wrapper around the code so that it gets the requirejs
    //API instead of the Node API, and it is done lexically so
    //that it survives later execution.
    req.makeNodeWrapper = function (contents) {
        return '(function (require, requirejs, define) { ' +
                contents +
                '\n}(requirejsVars.require, requirejsVars.requirejs, requirejsVars.define));';
    };

    req.load = function (context, moduleName, url) {
        var contents, err;

        if (exists(url)) {
            contents = fs.readFileSync(url, 'utf8');

            contents = req.makeNodeWrapper(contents);
            try {
                vm.runInThisContext(contents, fs.realpathSync(url));
            } catch (e) {
                err = new Error('Evaluating ' + url + ' as module "' +
                                moduleName + '" failed with error: ' + e);
                err.originalError = e;
                err.moduleName = moduleName;
                err.fileName = url;
                return req.onError(err);
            }
        } else {
            def(moduleName, function () {
                try {
                    return (context.config.nodeRequire || req.nodeRequire)(moduleName);
                } catch (e) {
                    err = new Error('Calling node\'s require("' +
                                        moduleName + '") failed with error: ' + e);
                    err.originalError = e;
                    err.moduleName = moduleName;
                    return req.onError(err);
                }
            });
        }

        //Support anonymous modules.
        context.completeLoad(moduleName);
    };

    //Override to provide the function wrapper for define/require.
    req.exec = function (text) {
        /*jslint evil: true */
        text = req.makeNodeWrapper(text);
        return eval(text);
    };
}());

    }

    //Support a default file name to execute. Useful for hosted envs
    //like Joyent where it defaults to a server.js as the only executed
    //script. But only do it if this is not an optimization run.
    if (commandOption !== 'o' && (!fileName || !jsSuffixRegExp.test(fileName))) {
        fileName = 'main.js';
    }

    /**
     * Loads the library files that can be used for the optimizer, or for other
     * tasks.
     */
    function loadLib() {
        /**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global Packages: false, process: false, window: false, navigator: false,
  document: false, define: false */

/**
 * A plugin that modifies any /env/ path to be the right path based on
 * the host environment. Right now only works for Node, Rhino and browser.
 */
(function () {
    var pathRegExp = /(\/|^)env\/|\{env\}/,
        env = 'unknown';

    if (typeof Packages !== 'undefined') {
        env = 'rhino';
    } else if (typeof process !== 'undefined') {
        env = 'node';
    } else if (typeof window !== "undefined" && navigator && document) {
        env = 'browser';
    }

    define('env', {
        load: function (name, req, load, config) {
            //Allow override in the config.
            if (config.env) {
                env = config.env;
            }

            name = name.replace(pathRegExp, function (match, prefix) {
                if (match.indexOf('{') === -1) {
                    return prefix + env + '/';
                } else {
                    return env;
                }
            });

            req([name], function (mod) {
                load(mod);
            });
        }
    });
}());
if(env === 'node') {
/**
 * @license RequireJS Copyright (c) 2012, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false, load: false */

//Needed so that rhino/assert can return a stub for uglify's consolidator.js
define('node/assert', ['assert'], function (assert) {
    return assert;
});

}

if(env === 'rhino') {
/**
 * @license RequireJS Copyright (c) 2012, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false, load: false */

//Just a stub for use with uglify's consolidator.js
define('rhino/assert', function () {
    return {};
});

}

if(env === 'node') {
/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false, process: false */

define('node/args', function () {
    //Do not return the "node" or "r.js" arguments
    var args = process.argv.slice(2);

    //Ignore any command option used for rq.js
    if (args[0] && args[0].indexOf('-' === 0)) {
        args = args.slice(1);
    }

    return args;
});

}

if(env === 'rhino') {
/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false, process: false */

var jsLibRhinoArgs = (typeof rhinoArgs !== 'undefined' && rhinoArgs) || [].concat(Array.prototype.slice.call(arguments, 0));

define('rhino/args', function () {
    var args = jsLibRhinoArgs;

    //Ignore any command option used for rq.js
    if (args[0] && args[0].indexOf('-' === 0)) {
        args = args.slice(1);
    }

    return args;
});

}

if(env === 'node') {
/**
 * @license RequireJS Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false, console: false */

define('node/load', ['fs'], function (fs) {
    function load(fileName) {
        var contents = fs.readFileSync(fileName, 'utf8');
        process.compile(contents, fileName);
    }

    return load;
});

}

if(env === 'rhino') {
/**
 * @license RequireJS Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false, load: false */

define('rhino/load', function () {
    return load;
});

}

if(env === 'node') {
/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint plusplus: false, octal:false, strict: false */
/*global define: false, process: false */

define('node/file', ['fs', 'path'], function (fs, path) {

    var isWindows = process.platform === 'win32',
        windowsDriveRegExp = /^[a-zA-Z]\:\/$/,
        file;

    function frontSlash(path) {
        return path.replace(/\\/g, '/');
    }

    function exists(path) {
        if (isWindows && path.charAt(path.length - 1) === '/' &&
            path.charAt(path.length - 2) !== ':') {
            path = path.substring(0, path.length - 1);
        }

        try {
            fs.statSync(path);
            return true;
        } catch (e) {
            return false;
        }
    }

    function mkDir(dir) {
        if (!exists(dir) && (!isWindows || !windowsDriveRegExp.test(dir))) {
            fs.mkdirSync(dir, 511);
        }
    }

    function mkFullDir(dir) {
        var parts = dir.split('/'),
            currDir = '',
            first = true;

        parts.forEach(function (part) {
            //First part may be empty string if path starts with a slash.
            currDir += part + '/';
            first = false;

            if (part) {
                mkDir(currDir);
            }
        });
    }

    file = {
        backSlashRegExp: /\\/g,
        exclusionRegExp: /^\./,
        getLineSeparator: function () {
            return '/';
        },

        exists: function (fileName) {
            return exists(fileName);
        },

        parent: function (fileName) {
            var parts = fileName.split('/');
            parts.pop();
            return parts.join('/');
        },

        /**
         * Gets the absolute file path as a string, normalized
         * to using front slashes for path separators.
         * @param {String} fileName
         */
        absPath: function (fileName) {
            return frontSlash(path.normalize(frontSlash(fs.realpathSync(fileName))));
        },

        normalize: function (fileName) {
            return frontSlash(path.normalize(fileName));
        },

        isFile: function (path) {
            return fs.statSync(path).isFile();
        },

        isDirectory: function (path) {
            return fs.statSync(path).isDirectory();
        },

        getFilteredFileList: function (/*String*/startDir, /*RegExp*/regExpFilters, /*boolean?*/makeUnixPaths) {
            //summary: Recurses startDir and finds matches to the files that match regExpFilters.include
            //and do not match regExpFilters.exclude. Or just one regexp can be passed in for regExpFilters,
            //and it will be treated as the "include" case.
            //Ignores files/directories that start with a period (.) unless exclusionRegExp
            //is set to another value.
            var files = [], topDir, regExpInclude, regExpExclude, dirFileArray,
                i, stat, filePath, ok, dirFiles, fileName;

            topDir = startDir;

            regExpInclude = regExpFilters.include || regExpFilters;
            regExpExclude = regExpFilters.exclude || null;

            if (file.exists(topDir)) {
                dirFileArray = fs.readdirSync(topDir);
                for (i = 0; i < dirFileArray.length; i++) {
                    fileName = dirFileArray[i];
                    filePath = path.join(topDir, fileName);
                    stat = fs.statSync(filePath);
                    if (stat.isFile()) {
                        if (makeUnixPaths) {
                            //Make sure we have a JS string.
                            if (filePath.indexOf("/") === -1) {
                                filePath = frontSlash(filePath);
                            }
                        }

                        ok = true;
                        if (regExpInclude) {
                            ok = filePath.match(regExpInclude);
                        }
                        if (ok && regExpExclude) {
                            ok = !filePath.match(regExpExclude);
                        }

                        if (ok && (!file.exclusionRegExp ||
                            !file.exclusionRegExp.test(fileName))) {
                            files.push(filePath);
                        }
                    } else if (stat.isDirectory() &&
                              (!file.exclusionRegExp || !file.exclusionRegExp.test(fileName))) {
                        dirFiles = this.getFilteredFileList(filePath, regExpFilters, makeUnixPaths);
                        files.push.apply(files, dirFiles);
                    }
                }
            }

            return files; //Array
        },

        copyDir: function (/*String*/srcDir, /*String*/destDir, /*RegExp?*/regExpFilter, /*boolean?*/onlyCopyNew) {
            //summary: copies files from srcDir to destDir using the regExpFilter to determine if the
            //file should be copied. Returns a list file name strings of the destinations that were copied.
            regExpFilter = regExpFilter || /\w/;

            //Normalize th directory names, but keep front slashes.
            //path module on windows now returns backslashed paths.
            srcDir = frontSlash(path.normalize(srcDir));
            destDir = frontSlash(path.normalize(destDir));

            var fileNames = file.getFilteredFileList(srcDir, regExpFilter, true),
            copiedFiles = [], i, srcFileName, destFileName;

            for (i = 0; i < fileNames.length; i++) {
                srcFileName = fileNames[i];
                destFileName = srcFileName.replace(srcDir, destDir);

                if (file.copyFile(srcFileName, destFileName, onlyCopyNew)) {
                    copiedFiles.push(destFileName);
                }
            }

            return copiedFiles.length ? copiedFiles : null; //Array or null
        },

        copyFile: function (/*String*/srcFileName, /*String*/destFileName, /*boolean?*/onlyCopyNew) {
            //summary: copies srcFileName to destFileName. If onlyCopyNew is set, it only copies the file if
            //srcFileName is newer than destFileName. Returns a boolean indicating if the copy occurred.
            var parentDir;

            //logger.trace("Src filename: " + srcFileName);
            //logger.trace("Dest filename: " + destFileName);

            //If onlyCopyNew is true, then compare dates and only copy if the src is newer
            //than dest.
            if (onlyCopyNew) {
                if (file.exists(destFileName) && fs.statSync(destFileName).mtime.getTime() >= fs.statSync(srcFileName).mtime.getTime()) {
                    return false; //Boolean
                }
            }

            //Make sure destination dir exists.
            parentDir = path.dirname(destFileName);
            if (!file.exists(parentDir)) {
                mkFullDir(parentDir);
            }

            fs.writeFileSync(destFileName, fs.readFileSync(srcFileName, 'binary'), 'binary');

            return true; //Boolean
        },

        /**
         * Renames a file. May fail if "to" already exists or is on another drive.
         */
        renameFile: function (from, to) {
            return fs.renameSync(from, to);
        },

        /**
         * Reads a *text* file.
         */
        readFile: function (/*String*/path, /*String?*/encoding) {
            if (encoding === 'utf-8') {
                encoding = 'utf8';
            }
            if (!encoding) {
                encoding = 'utf8';
            }

            var text = fs.readFileSync(path, encoding);

            //Hmm, would not expect to get A BOM, but it seems to happen,
            //remove it just in case.
            if (text.indexOf('\uFEFF') === 0) {
                text = text.substring(1, text.length);
            }

            return text;
        },

        saveUtf8File: function (/*String*/fileName, /*String*/fileContents) {
            //summary: saves a *text* file using UTF-8 encoding.
            file.saveFile(fileName, fileContents, "utf8");
        },

        saveFile: function (/*String*/fileName, /*String*/fileContents, /*String?*/encoding) {
            //summary: saves a *text* file.
            var parentDir;

            if (encoding === 'utf-8') {
                encoding = 'utf8';
            }
            if (!encoding) {
                encoding = 'utf8';
            }

            //Make sure destination directories exist.
            parentDir = path.dirname(fileName);
            if (!file.exists(parentDir)) {
                mkFullDir(parentDir);
            }

            fs.writeFileSync(fileName, fileContents, encoding);
        },

        deleteFile: function (/*String*/fileName) {
            //summary: deletes a file or directory if it exists.
            var files, i, stat;
            if (file.exists(fileName)) {
                stat = fs.statSync(fileName);
                if (stat.isDirectory()) {
                    files = fs.readdirSync(fileName);
                    for (i = 0; i < files.length; i++) {
                        this.deleteFile(path.join(fileName, files[i]));
                    }
                    fs.rmdirSync(fileName);
                } else {
                    fs.unlinkSync(fileName);
                }
            }
        }
    };

    return file;

});

}

if(env === 'rhino') {
/**
 * @license RequireJS Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */
//Helper functions to deal with file I/O.

/*jslint plusplus: false, strict: false */
/*global java: false, define: false */

define('rhino/file', function () {
    var file = {
        backSlashRegExp: /\\/g,

        exclusionRegExp: /^\./,

        getLineSeparator: function () {
            return file.lineSeparator;
        },

        lineSeparator: java.lang.System.getProperty("line.separator"), //Java String

        exists: function (fileName) {
            return (new java.io.File(fileName)).exists();
        },

        parent: function (fileName) {
            return file.absPath((new java.io.File(fileName)).getParentFile());
        },

        normalize: function (fileName) {
            return file.absPath(fileName);
        },

        isFile: function (path) {
            return (new java.io.File(path)).isFile();
        },

        isDirectory: function (path) {
            return (new java.io.File(path)).isDirectory();
        },

        /**
         * Gets the absolute file path as a string, normalized
         * to using front slashes for path separators.
         * @param {java.io.File||String} file
         */
        absPath: function (fileObj) {
            if (typeof fileObj === "string") {
                fileObj = new java.io.File(fileObj);
            }
            return (fileObj.getAbsolutePath() + "").replace(file.backSlashRegExp, "/");
        },

        getFilteredFileList: function (/*String*/startDir, /*RegExp*/regExpFilters, /*boolean?*/makeUnixPaths, /*boolean?*/startDirIsJavaObject) {
            //summary: Recurses startDir and finds matches to the files that match regExpFilters.include
            //and do not match regExpFilters.exclude. Or just one regexp can be passed in for regExpFilters,
            //and it will be treated as the "include" case.
            //Ignores files/directories that start with a period (.) unless exclusionRegExp
            //is set to another value.
            var files = [], topDir, regExpInclude, regExpExclude, dirFileArray,
                i, fileObj, filePath, ok, dirFiles;

            topDir = startDir;
            if (!startDirIsJavaObject) {
                topDir = new java.io.File(startDir);
            }

            regExpInclude = regExpFilters.include || regExpFilters;
            regExpExclude = regExpFilters.exclude || null;

            if (topDir.exists()) {
                dirFileArray = topDir.listFiles();
                for (i = 0; i < dirFileArray.length; i++) {
                    fileObj = dirFileArray[i];
                    if (fileObj.isFile()) {
                        filePath = fileObj.getPath();
                        if (makeUnixPaths) {
                            //Make sure we have a JS string.
                            filePath = String(filePath);
                            if (filePath.indexOf("/") === -1) {
                                filePath = filePath.replace(/\\/g, "/");
                            }
                        }

                        ok = true;
                        if (regExpInclude) {
                            ok = filePath.match(regExpInclude);
                        }
                        if (ok && regExpExclude) {
                            ok = !filePath.match(regExpExclude);
                        }

                        if (ok && (!file.exclusionRegExp ||
                            !file.exclusionRegExp.test(fileObj.getName()))) {
                            files.push(filePath);
                        }
                    } else if (fileObj.isDirectory() &&
                              (!file.exclusionRegExp || !file.exclusionRegExp.test(fileObj.getName()))) {
                        dirFiles = this.getFilteredFileList(fileObj, regExpFilters, makeUnixPaths, true);
                        files.push.apply(files, dirFiles);
                    }
                }
            }

            return files; //Array
        },

        copyDir: function (/*String*/srcDir, /*String*/destDir, /*RegExp?*/regExpFilter, /*boolean?*/onlyCopyNew) {
            //summary: copies files from srcDir to destDir using the regExpFilter to determine if the
            //file should be copied. Returns a list file name strings of the destinations that were copied.
            regExpFilter = regExpFilter || /\w/;

            var fileNames = file.getFilteredFileList(srcDir, regExpFilter, true),
            copiedFiles = [], i, srcFileName, destFileName;

            for (i = 0; i < fileNames.length; i++) {
                srcFileName = fileNames[i];
                destFileName = srcFileName.replace(srcDir, destDir);

                if (file.copyFile(srcFileName, destFileName, onlyCopyNew)) {
                    copiedFiles.push(destFileName);
                }
            }

            return copiedFiles.length ? copiedFiles : null; //Array or null
        },

        copyFile: function (/*String*/srcFileName, /*String*/destFileName, /*boolean?*/onlyCopyNew) {
            //summary: copies srcFileName to destFileName. If onlyCopyNew is set, it only copies the file if
            //srcFileName is newer than destFileName. Returns a boolean indicating if the copy occurred.
            var destFile = new java.io.File(destFileName), srcFile, parentDir,
            srcChannel, destChannel;

            //logger.trace("Src filename: " + srcFileName);
            //logger.trace("Dest filename: " + destFileName);

            //If onlyCopyNew is true, then compare dates and only copy if the src is newer
            //than dest.
            if (onlyCopyNew) {
                srcFile = new java.io.File(srcFileName);
                if (destFile.exists() && destFile.lastModified() >= srcFile.lastModified()) {
                    return false; //Boolean
                }
            }

            //Make sure destination dir exists.
            parentDir = destFile.getParentFile();
            if (!parentDir.exists()) {
                if (!parentDir.mkdirs()) {
                    throw "Could not create directory: " + parentDir.getAbsolutePath();
                }
            }

            //Java's version of copy file.
            srcChannel = new java.io.FileInputStream(srcFileName).getChannel();
            destChannel = new java.io.FileOutputStream(destFileName).getChannel();
            destChannel.transferFrom(srcChannel, 0, srcChannel.size());
            srcChannel.close();
            destChannel.close();

            return true; //Boolean
        },

        /**
         * Renames a file. May fail if "to" already exists or is on another drive.
         */
        renameFile: function (from, to) {
            return (new java.io.File(from)).renameTo((new java.io.File(to)));
        },

        readFile: function (/*String*/path, /*String?*/encoding) {
            //A file read function that can deal with BOMs
            encoding = encoding || "utf-8";
            var fileObj = new java.io.File(path),
                    input = new java.io.BufferedReader(new java.io.InputStreamReader(new java.io.FileInputStream(fileObj), encoding)),
                    stringBuffer, line;
            try {
                stringBuffer = new java.lang.StringBuffer();
                line = input.readLine();

                // Byte Order Mark (BOM) - The Unicode Standard, version 3.0, page 324
                // http://www.unicode.org/faq/utf_bom.html

                // Note that when we use utf-8, the BOM should appear as "EF BB BF", but it doesn't due to this bug in the JDK:
                // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4508058
                if (line && line.length() && line.charAt(0) === 0xfeff) {
                    // Eat the BOM, since we've already found the encoding on this file,
                    // and we plan to concatenating this buffer with others; the BOM should
                    // only appear at the top of a file.
                    line = line.substring(1);
                }
                while (line !== null) {
                    stringBuffer.append(line);
                    stringBuffer.append(file.lineSeparator);
                    line = input.readLine();
                }
                //Make sure we return a JavaScript string and not a Java string.
                return String(stringBuffer.toString()); //String
            } finally {
                input.close();
            }
        },

        saveUtf8File: function (/*String*/fileName, /*String*/fileContents) {
            //summary: saves a file using UTF-8 encoding.
            file.saveFile(fileName, fileContents, "utf-8");
        },

        saveFile: function (/*String*/fileName, /*String*/fileContents, /*String?*/encoding) {
            //summary: saves a file.
            var outFile = new java.io.File(fileName), outWriter, parentDir, os;

            parentDir = outFile.getAbsoluteFile().getParentFile();
            if (!parentDir.exists()) {
                if (!parentDir.mkdirs()) {
                    throw "Could not create directory: " + parentDir.getAbsolutePath();
                }
            }

            if (encoding) {
                outWriter = new java.io.OutputStreamWriter(new java.io.FileOutputStream(outFile), encoding);
            } else {
                outWriter = new java.io.OutputStreamWriter(new java.io.FileOutputStream(outFile));
            }

            os = new java.io.BufferedWriter(outWriter);
            try {
                os.write(fileContents);
            } finally {
                os.close();
            }
        },

        deleteFile: function (/*String*/fileName) {
            //summary: deletes a file or directory if it exists.
            var fileObj = new java.io.File(fileName), files, i;
            if (fileObj.exists()) {
                if (fileObj.isDirectory()) {
                    files = fileObj.listFiles();
                    for (i = 0; i < files.length; i++) {
                        this.deleteFile(files[i]);
                    }
                }
                fileObj["delete"]();
            }
        }
    };

    return file;
});

}

if(env === 'node') {
/*global process */
define('node/quit', function () {
    'use strict';
    return function (code) {
        return process.exit(code);
    };
});
}

if(env === 'rhino') {
/*global quit */
define('rhino/quit', function () {
    'use strict';
    return function (code) {
        return quit(code);
    };
});

}
/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint plusplus: true */
/*global define */

define('lang', function () {
    'use strict';

    var lang = {
        backSlashRegExp: /\\/g,
        ostring: Object.prototype.toString,

        isArray: Array.isArray || function (it) {
            return lang.ostring.call(it) === "[object Array]";
        },

        isFunction: function(it) {
            return lang.ostring.call(it) === "[object Function]";
        },

        isRegExp: function(it) {
            return it && it instanceof RegExp;
        },

        _mixin: function(dest, source, override){
            var name;
            for (name in source) {
                if(source.hasOwnProperty(name)
                    && (override || !dest.hasOwnProperty(name))) {
                    dest[name] = source[name];
                }
            }

            return dest; // Object
        },

        /**
         * mixin({}, obj1, obj2) is allowed. If the last argument is a boolean,
         * then the source objects properties are force copied over to dest.
         */
        mixin: function(dest){
            var parameters = Array.prototype.slice.call(arguments),
                override, i, l;

            if (!dest) { dest = {}; }

            if (parameters.length > 2 && typeof arguments[parameters.length-1] === 'boolean') {
                override = parameters.pop();
            }

            for (i = 1, l = parameters.length; i < l; i++) {
                lang._mixin(dest, parameters[i], override);
            }
            return dest; // Object
        },

        delegate: (function () {
            // boodman/crockford delegation w/ cornford optimization
            function TMP() {}
            return function (obj, props) {
                TMP.prototype = obj;
                var tmp = new TMP();
                TMP.prototype = null;
                if (props) {
                    lang.mixin(tmp, props);
                }
                return tmp; // Object
            };
        }()),

        /**
         * Helper function for iterating over an array. If the func returns
         * a true value, it will break out of the loop.
         */
        each: function each(ary, func) {
            if (ary) {
                var i;
                for (i = 0; i < ary.length; i += 1) {
                    if (func(ary[i], i, ary)) {
                        break;
                    }
                }
            }
        },

        /**
         * Cycles over properties in an object and calls a function for each
         * property value. If the function returns a truthy value, then the
         * iteration is stopped.
         */
        eachProp: function eachProp(obj, func) {
            var prop;
            for (prop in obj) {
                if (obj.hasOwnProperty(prop)) {
                    if (func(obj[prop], prop)) {
                        break;
                    }
                }
            }
        },

        //Similar to Function.prototype.bind, but the "this" object is specified
        //first, since it is easier to read/figure out what "this" will be.
        bind: function bind(obj, fn) {
            return function () {
                return fn.apply(obj, arguments);
            };
        },

        //Escapes a content string to be be a string that has characters escaped
        //for inclusion as part of a JS string.
        jsEscape: function (content) {
            return content.replace(/(["'\\])/g, '\\$1')
                .replace(/[\f]/g, "\\f")
                .replace(/[\b]/g, "\\b")
                .replace(/[\n]/g, "\\n")
                .replace(/[\t]/g, "\\t")
                .replace(/[\r]/g, "\\r");
        }
    };
    return lang;
});

if(env === 'node') {
/**
 * @license RequireJS Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false, console: false */

define('node/print', function () {
    function print(msg) {
        console.log(msg);
    }

    return print;
});

}

if(env === 'rhino') {
/**
 * @license RequireJS Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false, print: false */

define('rhino/print', function () {
    return print;
});

}
/**
 * @license RequireJS Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint nomen: false, strict: false */
/*global define: false */

define('logger', ['env!env/print'], function (print) {
    var logger = {
        TRACE: 0,
        INFO: 1,
        WARN: 2,
        ERROR: 3,
        SILENT: 4,
        level: 0,
        logPrefix: "",

        logLevel: function( level ) {
            this.level = level;
        },

        trace: function (message) {
            if (this.level <= this.TRACE) {
                this._print(message);
            }
        },

        info: function (message) {
            if (this.level <= this.INFO) {
                this._print(message);
            }
        },

        warn: function (message) {
            if (this.level <= this.WARN) {
                this._print(message);
            }
        },

        error: function (message) {
            if (this.level <= this.ERROR) {
                this._print(message);
            }
        },

        _print: function (message) {
            this._sysPrint((this.logPrefix ? (this.logPrefix + " ") : "") + message);
        },

        _sysPrint: function (message) {
            print(message);
        }
    };

    return logger;
});
//Just a blank file to use when building the optimizer with the optimizer,
//so that the build does not attempt to inline some env modules,
//like Node's fs and path.

//Just a blank file to use when building the optimizer with the optimizer,
//so that the build does not attempt to inline some env modules,
//like Node's fs and path.

//Commit d72ed0a000c455290fde6f8114fe38f4aaf31469 on May 15, 2012
define('esprima', ['exports'], function(exports) {
/*
  Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
  Copyright (C) 2012 Mathias Bynens <mathias@qiwi.be>
  Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
  Copyright (C) 2012 Kris Kowal <kris.kowal@cixar.com>
  Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
  Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
  Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/*jslint bitwise:true plusplus:true */
/*global esprima:true, exports:true,
throwError: true, createLiteral: true, generateStatement: true,
parseAssignmentExpression: true, parseBlock: true, parseExpression: true,
parseFunctionDeclaration: true, parseFunctionExpression: true,
parseFunctionSourceElements: true, parseVariableIdentifier: true,
parseLeftHandSideExpression: true,
parseStatement: true, parseSourceElement: true */

(function (exports) {
    'use strict';

    var Token,
        TokenName,
        Syntax,
        PropertyKind,
        Messages,
        Regex,
        source,
        strict,
        index,
        lineNumber,
        lineStart,
        length,
        buffer,
        state,
        extra;

    Token = {
        BooleanLiteral: 1,
        EOF: 2,
        Identifier: 3,
        Keyword: 4,
        NullLiteral: 5,
        NumericLiteral: 6,
        Punctuator: 7,
        StringLiteral: 8
    };

    TokenName = {};
    TokenName[Token.BooleanLiteral] = 'Boolean';
    TokenName[Token.EOF] = '<end>';
    TokenName[Token.Identifier] = 'Identifier';
    TokenName[Token.Keyword] = 'Keyword';
    TokenName[Token.NullLiteral] = 'Null';
    TokenName[Token.NumericLiteral] = 'Numeric';
    TokenName[Token.Punctuator] = 'Punctuator';
    TokenName[Token.StringLiteral] = 'String';

    Syntax = {
        AssignmentExpression: 'AssignmentExpression',
        ArrayExpression: 'ArrayExpression',
        BlockStatement: 'BlockStatement',
        BinaryExpression: 'BinaryExpression',
        BreakStatement: 'BreakStatement',
        CallExpression: 'CallExpression',
        CatchClause: 'CatchClause',
        ConditionalExpression: 'ConditionalExpression',
        ContinueStatement: 'ContinueStatement',
        DoWhileStatement: 'DoWhileStatement',
        DebuggerStatement: 'DebuggerStatement',
        EmptyStatement: 'EmptyStatement',
        ExpressionStatement: 'ExpressionStatement',
        ForStatement: 'ForStatement',
        ForInStatement: 'ForInStatement',
        FunctionDeclaration: 'FunctionDeclaration',
        FunctionExpression: 'FunctionExpression',
        Identifier: 'Identifier',
        IfStatement: 'IfStatement',
        Literal: 'Literal',
        LabeledStatement: 'LabeledStatement',
        LogicalExpression: 'LogicalExpression',
        MemberExpression: 'MemberExpression',
        NewExpression: 'NewExpression',
        ObjectExpression: 'ObjectExpression',
        Program: 'Program',
        Property: 'Property',
        ReturnStatement: 'ReturnStatement',
        SequenceExpression: 'SequenceExpression',
        SwitchStatement: 'SwitchStatement',
        SwitchCase: 'SwitchCase',
        ThisExpression: 'ThisExpression',
        ThrowStatement: 'ThrowStatement',
        TryStatement: 'TryStatement',
        UnaryExpression: 'UnaryExpression',
        UpdateExpression: 'UpdateExpression',
        VariableDeclaration: 'VariableDeclaration',
        VariableDeclarator: 'VariableDeclarator',
        WhileStatement: 'WhileStatement',
        WithStatement: 'WithStatement'
    };

    PropertyKind = {
        Data: 1,
        Get: 2,
        Set: 4
    };

    // Error messages should be identical to V8.
    Messages = {
        UnexpectedToken:  'Unexpected token %0',
        UnexpectedNumber:  'Unexpected number',
        UnexpectedString:  'Unexpected string',
        UnexpectedIdentifier:  'Unexpected identifier',
        UnexpectedReserved:  'Unexpected reserved word',
        UnexpectedEOS:  'Unexpected end of input',
        NewlineAfterThrow:  'Illegal newline after throw',
        InvalidRegExp: 'Invalid regular expression',
        UnterminatedRegExp:  'Invalid regular expression: missing /',
        InvalidLHSInAssignment:  'Invalid left-hand side in assignment',
        InvalidLHSInForIn:  'Invalid left-hand side in for-in',
        NoCatchOrFinally:  'Missing catch or finally after try',
        UnknownLabel: 'Undefined label \'%0\'',
        Redeclaration: '%0 \'%1\' has already been declared',
        IllegalContinue: 'Illegal continue statement',
        IllegalBreak: 'Illegal break statement',
        IllegalReturn: 'Illegal return statement',
        StrictModeWith:  'Strict mode code may not include a with statement',
        StrictCatchVariable:  'Catch variable may not be eval or arguments in strict mode',
        StrictVarName:  'Variable name may not be eval or arguments in strict mode',
        StrictParamName:  'Parameter name eval or arguments is not allowed in strict mode',
        StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
        StrictFunctionName:  'Function name may not be eval or arguments in strict mode',
        StrictOctalLiteral:  'Octal literals are not allowed in strict mode.',
        StrictDelete:  'Delete of an unqualified identifier in strict mode.',
        StrictDuplicateProperty:  'Duplicate data property in object literal not allowed in strict mode',
        AccessorDataProperty:  'Object literal may not have data and accessor property with the same name',
        AccessorGetSet:  'Object literal may not have multiple get/set accessors with the same name',
        StrictLHSAssignment:  'Assignment to eval or arguments is not allowed in strict mode',
        StrictLHSPostfix:  'Postfix increment/decrement may not have eval or arguments operand in strict mode',
        StrictLHSPrefix:  'Prefix increment/decrement may not have eval or arguments operand in strict mode',
        StrictReservedWord:  'Use of future reserved word in strict mode'
    };

    // See also tools/generate-unicode-regex.py.
    Regex = {
        NonAsciiIdentifierStart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\u0c60\u0c61\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d60\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]'),
        NonAsciiIdentifierPart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0300-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u0483-\u0487\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u05d0-\u05ea\u05f0-\u05f2\u0610-\u061a\u0620-\u0669\u066e-\u06d3\u06d5-\u06dc\u06df-\u06e8\u06ea-\u06fc\u06ff\u0710-\u074a\u074d-\u07b1\u07c0-\u07f5\u07fa\u0800-\u082d\u0840-\u085b\u08a0\u08a2-\u08ac\u08e4-\u08fe\u0900-\u0963\u0966-\u096f\u0971-\u0977\u0979-\u097f\u0981-\u0983\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bc-\u09c4\u09c7\u09c8\u09cb-\u09ce\u09d7\u09dc\u09dd\u09df-\u09e3\u09e6-\u09f1\u0a01-\u0a03\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a59-\u0a5c\u0a5e\u0a66-\u0a75\u0a81-\u0a83\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abc-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ad0\u0ae0-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3c-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5c\u0b5d\u0b5f-\u0b63\u0b66-\u0b6f\u0b71\u0b82\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd0\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c58\u0c59\u0c60-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbc-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0cde\u0ce0-\u0ce3\u0ce6-\u0cef\u0cf1\u0cf2\u0d02\u0d03\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d-\u0d44\u0d46-\u0d48\u0d4a-\u0d4e\u0d57\u0d60-\u0d63\u0d66-\u0d6f\u0d7a-\u0d7f\u0d82\u0d83\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e01-\u0e3a\u0e40-\u0e4e\u0e50-\u0e59\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb9\u0ebb-\u0ebd\u0ec0-\u0ec4\u0ec6\u0ec8-\u0ecd\u0ed0-\u0ed9\u0edc-\u0edf\u0f00\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e-\u0f47\u0f49-\u0f6c\u0f71-\u0f84\u0f86-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1049\u1050-\u109d\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u135d-\u135f\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176c\u176e-\u1770\u1772\u1773\u1780-\u17d3\u17d7\u17dc\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1820-\u1877\u1880-\u18aa\u18b0-\u18f5\u1900-\u191c\u1920-\u192b\u1930-\u193b\u1946-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u19d0-\u19d9\u1a00-\u1a1b\u1a20-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1aa7\u1b00-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1bf3\u1c00-\u1c37\u1c40-\u1c49\u1c4d-\u1c7d\u1cd0-\u1cd2\u1cd4-\u1cf6\u1d00-\u1de6\u1dfc-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u200c\u200d\u203f\u2040\u2054\u2071\u207f\u2090-\u209c\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d7f-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2de0-\u2dff\u2e2f\u3005-\u3007\u3021-\u302f\u3031-\u3035\u3038-\u303c\u3041-\u3096\u3099\u309a\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua62b\ua640-\ua66f\ua674-\ua67d\ua67f-\ua697\ua69f-\ua6f1\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua827\ua840-\ua873\ua880-\ua8c4\ua8d0-\ua8d9\ua8e0-\ua8f7\ua8fb\ua900-\ua92d\ua930-\ua953\ua960-\ua97c\ua980-\ua9c0\ua9cf-\ua9d9\uaa00-\uaa36\uaa40-\uaa4d\uaa50-\uaa59\uaa60-\uaa76\uaa7a\uaa7b\uaa80-\uaac2\uaadb-\uaadd\uaae0-\uaaef\uaaf2-\uaaf6\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabea\uabec\uabed\uabf0-\uabf9\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\ufe70-\ufe74\ufe76-\ufefc\uff10-\uff19\uff21-\uff3a\uff3f\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]')
    };

    // Ensure the condition is true, otherwise throw an error.
    // This is only to have a better contract semantic, i.e. another safety net
    // to catch a logic error. The condition shall be fulfilled in normal case.
    // Do NOT use this to enforce a certain condition on any user input.

    function assert(condition, message) {
        if (!condition) {
            throw new Error('ASSERT: ' + message);
        }
    }

    function sliceSource(from, to) {
        return source.slice(from, to);
    }

    if (typeof 'esprima'[0] === 'undefined') {
        sliceSource = function sliceArraySource(from, to) {
            return source.slice(from, to).join('');
        };
    }

    function isDecimalDigit(ch) {
        return '0123456789'.indexOf(ch) >= 0;
    }

    function isHexDigit(ch) {
        return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
    }

    function isOctalDigit(ch) {
        return '01234567'.indexOf(ch) >= 0;
    }


    // 7.2 White Space

    function isWhiteSpace(ch) {
        return (ch === ' ') || (ch === '\u0009') || (ch === '\u000B') ||
            (ch === '\u000C') || (ch === '\u00A0') ||
            (ch.charCodeAt(0) >= 0x1680 &&
             '\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\uFEFF'.indexOf(ch) >= 0);
    }

    // 7.3 Line Terminators

    function isLineTerminator(ch) {
        return (ch === '\n' || ch === '\r' || ch === '\u2028' || ch === '\u2029');
    }

    // 7.6 Identifier Names and Identifiers

    function isIdentifierStart(ch) {
        return (ch === '$') || (ch === '_') || (ch === '\\') ||
            (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
            ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierStart.test(ch));
    }

    function isIdentifierPart(ch) {
        return (ch === '$') || (ch === '_') || (ch === '\\') ||
            (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
            ((ch >= '0') && (ch <= '9')) ||
            ((ch.charCodeAt(0) >= 0x80) && Regex.NonAsciiIdentifierPart.test(ch));
    }

    // 7.6.1.2 Future Reserved Words

    function isFutureReservedWord(id) {
        switch (id) {

        // Future reserved words.
        case 'class':
        case 'enum':
        case 'export':
        case 'extends':
        case 'import':
        case 'super':
            return true;
        }

        return false;
    }

    function isStrictModeReservedWord(id) {
        switch (id) {

        // Strict Mode reserved words.
        case 'implements':
        case 'interface':
        case 'package':
        case 'private':
        case 'protected':
        case 'public':
        case 'static':
        case 'yield':
        case 'let':
            return true;
        }

        return false;
    }

    function isRestrictedWord(id) {
        return id === 'eval' || id === 'arguments';
    }

    // 7.6.1.1 Keywords

    function isKeyword(id) {
        var keyword = false;
        switch (id.length) {
        case 2:
            keyword = (id === 'if') || (id === 'in') || (id === 'do');
            break;
        case 3:
            keyword = (id === 'var') || (id === 'for') || (id === 'new') || (id === 'try');
            break;
        case 4:
            keyword = (id === 'this') || (id === 'else') || (id === 'case') || (id === 'void') || (id === 'with');
            break;
        case 5:
            keyword = (id === 'while') || (id === 'break') || (id === 'catch') || (id === 'throw');
            break;
        case 6:
            keyword = (id === 'return') || (id === 'typeof') || (id === 'delete') || (id === 'switch');
            break;
        case 7:
            keyword = (id === 'default') || (id === 'finally');
            break;
        case 8:
            keyword = (id === 'function') || (id === 'continue') || (id === 'debugger');
            break;
        case 10:
            keyword = (id === 'instanceof');
            break;
        }

        if (keyword) {
            return true;
        }

        switch (id) {
        // Future reserved words.
        // 'const' is specialized as Keyword in V8.
        case 'const':
            return true;

        // For compatiblity to SpiderMonkey and ES.next
        case 'yield':
        case 'let':
            return true;
        }

        if (strict && isStrictModeReservedWord(id)) {
            return true;
        }

        return isFutureReservedWord(id);
    }

    // Return the next character and move forward.

    function nextChar() {
        return source[index++];
    }

    // 7.4 Comments

    function skipComment() {
        var ch, blockComment, lineComment;

        blockComment = false;
        lineComment = false;

        while (index < length) {
            ch = source[index];

            if (lineComment) {
                ch = nextChar();
                if (isLineTerminator(ch)) {
                    lineComment = false;
                    if (ch === '\r' && source[index] === '\n') {
                        ++index;
                    }
                    ++lineNumber;
                    lineStart = index;
                }
            } else if (blockComment) {
                if (isLineTerminator(ch)) {
                    if (ch === '\r' && source[index + 1] === '\n') {
                        ++index;
                    }
                    ++lineNumber;
                    ++index;
                    lineStart = index;
                    if (index >= length) {
                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                    }
                } else {
                    ch = nextChar();
                    if (index >= length) {
                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                    }
                    if (ch === '*') {
                        ch = source[index];
                        if (ch === '/') {
                            ++index;
                            blockComment = false;
                        }
                    }
                }
            } else if (ch === '/') {
                ch = source[index + 1];
                if (ch === '/') {
                    index += 2;
                    lineComment = true;
                } else if (ch === '*') {
                    index += 2;
                    blockComment = true;
                    if (index >= length) {
                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                    }
                } else {
                    break;
                }
            } else if (isWhiteSpace(ch)) {
                ++index;
            } else if (isLineTerminator(ch)) {
                ++index;
                if (ch ===  '\r' && source[index] === '\n') {
                    ++index;
                }
                ++lineNumber;
                lineStart = index;
            } else {
                break;
            }
        }
    }

    function scanHexEscape(prefix) {
        var i, len, ch, code = 0;

        len = (prefix === 'u') ? 4 : 2;
        for (i = 0; i < len; ++i) {
            if (index < length && isHexDigit(source[index])) {
                ch = nextChar();
                code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
            } else {
                return '';
            }
        }
        return String.fromCharCode(code);
    }

    function scanIdentifier() {
        var ch, start, id, restore;

        ch = source[index];
        if (!isIdentifierStart(ch)) {
            return;
        }

        start = index;
        if (ch === '\\') {
            ++index;
            if (source[index] !== 'u') {
                return;
            }
            ++index;
            restore = index;
            ch = scanHexEscape('u');
            if (ch) {
                if (ch === '\\' || !isIdentifierStart(ch)) {
                    return;
                }
                id = ch;
            } else {
                index = restore;
                id = 'u';
            }
        } else {
            id = nextChar();
        }

        while (index < length) {
            ch = source[index];
            if (!isIdentifierPart(ch)) {
                break;
            }
            if (ch === '\\') {
                ++index;
                if (source[index] !== 'u') {
                    return;
                }
                ++index;
                restore = index;
                ch = scanHexEscape('u');
                if (ch) {
                    if (ch === '\\' || !isIdentifierPart(ch)) {
                        return;
                    }
                    id += ch;
                } else {
                    index = restore;
                    id += 'u';
                }
            } else {
                id += nextChar();
            }
        }

        // There is no keyword or literal with only one character.
        // Thus, it must be an identifier.
        if (id.length === 1) {
            return {
                type: Token.Identifier,
                value: id,
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        if (isKeyword(id)) {
            return {
                type: Token.Keyword,
                value: id,
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        // 7.8.1 Null Literals

        if (id === 'null') {
            return {
                type: Token.NullLiteral,
                value: id,
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        // 7.8.2 Boolean Literals

        if (id === 'true' || id === 'false') {
            return {
                type: Token.BooleanLiteral,
                value: id,
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        return {
            type: Token.Identifier,
            value: id,
            lineNumber: lineNumber,
            lineStart: lineStart,
            range: [start, index]
        };
    }

    // 7.7 Punctuators

    function scanPunctuator() {
        var start = index,
            ch1 = source[index],
            ch2,
            ch3,
            ch4;

        // Check for most common single-character punctuators.

        if (ch1 === ';' || ch1 === '{' || ch1 === '}') {
            ++index;
            return {
                type: Token.Punctuator,
                value: ch1,
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        if (ch1 === ',' || ch1 === '(' || ch1 === ')') {
            ++index;
            return {
                type: Token.Punctuator,
                value: ch1,
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        // Dot (.) can also start a floating-point number, hence the need
        // to check the next character.

        ch2 = source[index + 1];
        if (ch1 === '.' && !isDecimalDigit(ch2)) {
            return {
                type: Token.Punctuator,
                value: nextChar(),
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        // Peek more characters.

        ch3 = source[index + 2];
        ch4 = source[index + 3];

        // 4-character punctuator: >>>=

        if (ch1 === '>' && ch2 === '>' && ch3 === '>') {
            if (ch4 === '=') {
                index += 4;
                return {
                    type: Token.Punctuator,
                    value: '>>>=',
                    lineNumber: lineNumber,
                    lineStart: lineStart,
                    range: [start, index]
                };
            }
        }

        // 3-character punctuators: === !== >>> <<= >>=

        if (ch1 === '=' && ch2 === '=' && ch3 === '=') {
            index += 3;
            return {
                type: Token.Punctuator,
                value: '===',
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        if (ch1 === '!' && ch2 === '=' && ch3 === '=') {
            index += 3;
            return {
                type: Token.Punctuator,
                value: '!==',
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        if (ch1 === '>' && ch2 === '>' && ch3 === '>') {
            index += 3;
            return {
                type: Token.Punctuator,
                value: '>>>',
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        if (ch1 === '<' && ch2 === '<' && ch3 === '=') {
            index += 3;
            return {
                type: Token.Punctuator,
                value: '<<=',
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        if (ch1 === '>' && ch2 === '>' && ch3 === '=') {
            index += 3;
            return {
                type: Token.Punctuator,
                value: '>>=',
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }

        // 2-character punctuators: <= >= == != ++ -- << >> && ||
        // += -= *= %= &= |= ^= /=

        if (ch2 === '=') {
            if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
                index += 2;
                return {
                    type: Token.Punctuator,
                    value: ch1 + ch2,
                    lineNumber: lineNumber,
                    lineStart: lineStart,
                    range: [start, index]
                };
            }
        }

        if (ch1 === ch2 && ('+-<>&|'.indexOf(ch1) >= 0)) {
            if ('+-<>&|'.indexOf(ch2) >= 0) {
                index += 2;
                return {
                    type: Token.Punctuator,
                    value: ch1 + ch2,
                    lineNumber: lineNumber,
                    lineStart: lineStart,
                    range: [start, index]
                };
            }
        }

        // The remaining 1-character punctuators.

        if ('[]<>+-*%&|^!~?:=/'.indexOf(ch1) >= 0) {
            return {
                type: Token.Punctuator,
                value: nextChar(),
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [start, index]
            };
        }
    }

    // 7.8.3 Numeric Literals

    function scanNumericLiteral() {
        var number, start, ch;

        ch = source[index];
        assert(isDecimalDigit(ch) || (ch === '.'),
            'Numeric literal must start with a decimal digit or a decimal point');

        start = index;
        number = '';
        if (ch !== '.') {
            number = nextChar();
            ch = source[index];

            // Hex number starts with '0x'.
            // Octal number starts with '0'.
            if (number === '0') {
                if (ch === 'x' || ch === 'X') {
                    number += nextChar();
                    while (index < length) {
                        ch = source[index];
                        if (!isHexDigit(ch)) {
                            break;
                        }
                        number += nextChar();
                    }

                    if (number.length <= 2) {
                        // only 0x
                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                    }

                    if (index < length) {
                        ch = source[index];
                        if (isIdentifierStart(ch)) {
                            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                        }
                    }
                    return {
                        type: Token.NumericLiteral,
                        value: parseInt(number, 16),
                        lineNumber: lineNumber,
                        lineStart: lineStart,
                        range: [start, index]
                    };
                } else if (isOctalDigit(ch)) {
                    number += nextChar();
                    while (index < length) {
                        ch = source[index];
                        if (!isOctalDigit(ch)) {
                            break;
                        }
                        number += nextChar();
                    }

                    if (index < length) {
                        ch = source[index];
                        if (isIdentifierStart(ch) || isDecimalDigit(ch)) {
                            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                        }
                    }
                    return {
                        type: Token.NumericLiteral,
                        value: parseInt(number, 8),
                        octal: true,
                        lineNumber: lineNumber,
                        lineStart: lineStart,
                        range: [start, index]
                    };
                }

                // decimal number starts with '0' such as '09' is illegal.
                if (isDecimalDigit(ch)) {
                    throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                }
            }

            while (index < length) {
                ch = source[index];
                if (!isDecimalDigit(ch)) {
                    break;
                }
                number += nextChar();
            }
        }

        if (ch === '.') {
            number += nextChar();
            while (index < length) {
                ch = source[index];
                if (!isDecimalDigit(ch)) {
                    break;
                }
                number += nextChar();
            }
        }

        if (ch === 'e' || ch === 'E') {
            number += nextChar();

            ch = source[index];
            if (ch === '+' || ch === '-') {
                number += nextChar();
            }

            ch = source[index];
            if (isDecimalDigit(ch)) {
                number += nextChar();
                while (index < length) {
                    ch = source[index];
                    if (!isDecimalDigit(ch)) {
                        break;
                    }
                    number += nextChar();
                }
            } else {
                ch = 'character ' + ch;
                if (index >= length) {
                    ch = '<end>';
                }
                throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
            }
        }

        if (index < length) {
            ch = source[index];
            if (isIdentifierStart(ch)) {
                throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
            }
        }

        return {
            type: Token.NumericLiteral,
            value: parseFloat(number),
            lineNumber: lineNumber,
            lineStart: lineStart,
            range: [start, index]
        };
    }

    // 7.8.4 String Literals

    function scanStringLiteral() {
        var str = '', quote, start, ch, code, unescaped, restore, octal = false;

        quote = source[index];
        assert((quote === '\'' || quote === '"'),
            'String literal must starts with a quote');

        start = index;
        ++index;

        while (index < length) {
            ch = nextChar();

            if (ch === quote) {
                quote = '';
                break;
            } else if (ch === '\\') {
                ch = nextChar();
                if (!isLineTerminator(ch)) {
                    switch (ch) {
                    case 'n':
                        str += '\n';
                        break;
                    case 'r':
                        str += '\r';
                        break;
                    case 't':
                        str += '\t';
                        break;
                    case 'u':
                    case 'x':
                        restore = index;
                        unescaped = scanHexEscape(ch);
                        if (unescaped) {
                            str += unescaped;
                        } else {
                            index = restore;
                            str += ch;
                        }
                        break;
                    case 'b':
                        str += '\b';
                        break;
                    case 'f':
                        str += '\f';
                        break;
                    case 'v':
                        str += '\v';
                        break;

                    default:
                        if (isOctalDigit(ch)) {
                            code = '01234567'.indexOf(ch);

                            // \0 is not octal escape sequence
                            if (code !== 0) {
                                octal = true;
                            }

                            if (index < length && isOctalDigit(source[index])) {
                                octal = true;
                                code = code * 8 + '01234567'.indexOf(nextChar());

                                // 3 digits are only allowed when string starts
                                // with 0, 1, 2, 3
                                if ('0123'.indexOf(ch) >= 0 &&
                                        index < length &&
                                        isOctalDigit(source[index])) {
                                    code = code * 8 + '01234567'.indexOf(nextChar());
                                }
                            }
                            str += String.fromCharCode(code);
                        } else {
                            str += ch;
                        }
                        break;
                    }
                } else {
                    ++lineNumber;
                    if (ch ===  '\r' && source[index] === '\n') {
                        ++index;
                    }
                }
            } else if (isLineTerminator(ch)) {
                break;
            } else {
                str += ch;
            }
        }

        if (quote !== '') {
            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
        }

        return {
            type: Token.StringLiteral,
            value: str,
            octal: octal,
            lineNumber: lineNumber,
            lineStart: lineStart,
            range: [start, index]
        };
    }

    function scanRegExp() {
        var str = '', ch, start, pattern, flags, value, classMarker = false, restore;

        buffer = null;
        skipComment();

        start = index;
        ch = source[index];
        assert(ch === '/', 'Regular expression literal must start with a slash');
        str = nextChar();

        while (index < length) {
            ch = nextChar();
            str += ch;
            if (classMarker) {
                if (ch === ']') {
                    classMarker = false;
                }
            } else {
                if (ch === '\\') {
                    ch = nextChar();
                    // ECMA-262 7.8.5
                    if (isLineTerminator(ch)) {
                        throwError({}, Messages.UnterminatedRegExp);
                    }
                    str += ch;
                }
                else if (ch === '/') {
                    break;
                }
                else if (ch === '[') {
                    classMarker = true;
                }
                else if (isLineTerminator(ch)) {
                    throwError({}, Messages.UnterminatedRegExp);
                }
            }
        }

        if (str.length === 1) {
            throwError({}, Messages.UnterminatedRegExp);
        }

        // Exclude leading and trailing slash.
        pattern = str.substr(1, str.length - 2);

        flags = '';
        while (index < length) {
            ch = source[index];
            if (!isIdentifierPart(ch)) {
                break;
            }

            ++index;
            if (ch === '\\' && index < length) {
                ch = source[index];
                if (ch === 'u') {
                    ++index;
                    restore = index;
                    ch = scanHexEscape('u');
                    if (ch) {
                        flags += ch;
                        str += '\\u';
                        for (; restore < index; ++restore) {
                            str += source[restore];
                        }
                    } else {
                        index = restore;
                        flags += 'u';
                        str += '\\u';
                    }
                } else {
                    str += '\\';
                }
            } else {
                flags += ch;
                str += ch;
            }
        }

        try {
            value = new RegExp(pattern, flags);
        } catch (e) {
            throwError({}, Messages.InvalidRegExp);
        }

        return {
            literal: str,
            value: value,
            range: [start, index]
        };
    }

    function isIdentifierName(token) {
        return token.type === Token.Identifier ||
            token.type === Token.Keyword ||
            token.type === Token.BooleanLiteral ||
            token.type === Token.NullLiteral;
    }

    function advance() {
        var ch, token;

        skipComment();

        if (index >= length) {
            return {
                type: Token.EOF,
                lineNumber: lineNumber,
                lineStart: lineStart,
                range: [index, index]
            };
        }

        token = scanPunctuator();
        if (typeof token !== 'undefined') {
            return token;
        }

        ch = source[index];

        if (ch === '\'' || ch === '"') {
            return scanStringLiteral();
        }

        if (ch === '.' || isDecimalDigit(ch)) {
            return scanNumericLiteral();
        }

        token = scanIdentifier();
        if (typeof token !== 'undefined') {
            return token;
        }

        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
    }

    function lex() {
        var token;

        if (buffer) {
            index = buffer.range[1];
            lineNumber = buffer.lineNumber;
            lineStart = buffer.lineStart;
            token = buffer;
            buffer = null;
            return token;
        }

        buffer = null;
        return advance();
    }

    function lookahead() {
        var pos, line, start;

        if (buffer !== null) {
            return buffer;
        }

        pos = index;
        line = lineNumber;
        start = lineStart;
        buffer = advance();
        index = pos;
        lineNumber = line;
        lineStart = start;

        return buffer;
    }

    // Return true if there is a line terminator before the next token.

    function peekLineTerminator() {
        var pos, line, start, found;

        pos = index;
        line = lineNumber;
        start = lineStart;
        skipComment();
        found = lineNumber !== line;
        index = pos;
        lineNumber = line;
        lineStart = start;

        return found;
    }

    // Throw an exception

    function throwError(token, messageFormat) {
        var error,
            args = Array.prototype.slice.call(arguments, 2),
            msg = messageFormat.replace(
                /%(\d)/g,
                function (whole, index) {
                    return args[index] || '';
                }
            );

        if (typeof token.lineNumber === 'number') {
            error = new Error('Line ' + token.lineNumber + ': ' + msg);
            error.index = token.range[0];
            error.lineNumber = token.lineNumber;
            error.column = token.range[0] - lineStart + 1;
        } else {
            error = new Error('Line ' + lineNumber + ': ' + msg);
            error.index = index;
            error.lineNumber = lineNumber;
            error.column = index - lineStart + 1;
        }

        throw error;
    }

    function throwErrorTolerant() {
        var error;
        try {
            throwError.apply(null, arguments);
        } catch (e) {
            if (extra.errors) {
                extra.errors.push(e);
            } else {
                throw e;
            }
        }
    }


    // Throw an exception because of the token.

    function throwUnexpected(token) {
        var s;

        if (token.type === Token.EOF) {
            throwError(token, Messages.UnexpectedEOS);
        }

        if (token.type === Token.NumericLiteral) {
            throwError(token, Messages.UnexpectedNumber);
        }

        if (token.type === Token.StringLiteral) {
            throwError(token, Messages.UnexpectedString);
        }

        if (token.type === Token.Identifier) {
            throwError(token, Messages.UnexpectedIdentifier);
        }

        if (token.type === Token.Keyword) {
            if (isFutureReservedWord(token.value)) {
                throwError(token, Messages.UnexpectedReserved);
            } else if (strict && isStrictModeReservedWord(token.value)) {
                throwError(token, Messages.StrictReservedWord);
            }
            throwError(token, Messages.UnexpectedToken, token.value);
        }

        // BooleanLiteral, NullLiteral, or Punctuator.
        throwError(token, Messages.UnexpectedToken, token.value);
    }

    // Expect the next token to match the specified punctuator.
    // If not, an exception will be thrown.

    function expect(value) {
        var token = lex();
        if (token.type !== Token.Punctuator || token.value !== value) {
            throwUnexpected(token);
        }
    }

    // Expect the next token to match the specified keyword.
    // If not, an exception will be thrown.

    function expectKeyword(keyword) {
        var token = lex();
        if (token.type !== Token.Keyword || token.value !== keyword) {
            throwUnexpected(token);
        }
    }

    // Return true if the next token matches the specified punctuator.

    function match(value) {
        var token = lookahead();
        return token.type === Token.Punctuator && token.value === value;
    }

    // Return true if the next token matches the specified keyword

    function matchKeyword(keyword) {
        var token = lookahead();
        return token.type === Token.Keyword && token.value === keyword;
    }

    // Return true if the next token is an assignment operator

    function matchAssign() {
        var token = lookahead(),
            op = token.value;

        if (token.type !== Token.Punctuator) {
            return false;
        }
        return op === '=' ||
            op === '*=' ||
            op === '/=' ||
            op === '%=' ||
            op === '+=' ||
            op === '-=' ||
            op === '<<=' ||
            op === '>>=' ||
            op === '>>>=' ||
            op === '&=' ||
            op === '^=' ||
            op === '|=';
    }

    function consumeSemicolon() {
        var token, line;

        // Catch the very common case first.
        if (source[index] === ';') {
            lex();
            return;
        }

        line = lineNumber;
        skipComment();
        if (lineNumber !== line) {
            return;
        }

        if (match(';')) {
            lex();
            return;
        }

        token = lookahead();
        if (token.type !== Token.EOF && !match('}')) {
            throwUnexpected(token);
        }
        return;
    }

    // Return true if provided expression is LeftHandSideExpression

    function isLeftHandSide(expr) {
        switch (expr.type) {
        case 'AssignmentExpression':
        case 'BinaryExpression':
        case 'ConditionalExpression':
        case 'LogicalExpression':
        case 'SequenceExpression':
        case 'UnaryExpression':
        case 'UpdateExpression':
            return false;
        }
        return true;
    }

    // 11.1.4 Array Initialiser

    function parseArrayInitialiser() {
        var elements = [],
            undef;

        expect('[');

        while (!match(']')) {
            if (match(',')) {
                lex();
                elements.push(undef);
            } else {
                elements.push(parseAssignmentExpression());

                if (!match(']')) {
                    expect(',');
                }
            }
        }

        expect(']');

        return {
            type: Syntax.ArrayExpression,
            elements: elements
        };
    }

    // 11.1.5 Object Initialiser

    function parsePropertyFunction(param, first) {
        var previousStrict, body;

        previousStrict = strict;
        body = parseFunctionSourceElements();
        if (first && strict && isRestrictedWord(param[0].name)) {
            throwError(first, Messages.StrictParamName);
        }
        strict = previousStrict;

        return {
            type: Syntax.FunctionExpression,
            id: null,
            params: param,
            body: body
        };
    }

    function parseObjectPropertyKey() {
        var token = lex();

        // Note: This function is called only from parseObjectProperty(), where
        // EOF and Punctuator tokens are already filtered out.

        if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) {
            if (strict && token.octal) {
                throwError(token, Messages.StrictOctalLiteral);
            }
            return createLiteral(token);
        }

        return {
            type: Syntax.Identifier,
            name: token.value
        };
    }

    function parseObjectProperty() {
        var token, key, id, param;

        token = lookahead();

        if (token.type === Token.Identifier) {

            id = parseObjectPropertyKey();

            // Property Assignment: Getter and Setter.

            if (token.value === 'get' && !match(':')) {
                key = parseObjectPropertyKey();
                expect('(');
                expect(')');
                return {
                    type: Syntax.Property,
                    key: key,
                    value: parsePropertyFunction([]),
                    kind: 'get'
                };
            } else if (token.value === 'set' && !match(':')) {
                key = parseObjectPropertyKey();
                expect('(');
                token = lookahead();
                if (token.type !== Token.Identifier) {
                    throwUnexpected(lex());
                }
                param = [ parseVariableIdentifier() ];
                expect(')');
                return {
                    type: Syntax.Property,
                    key: key,
                    value: parsePropertyFunction(param, token),
                    kind: 'set'
                };
            } else {
                expect(':');
                return {
                    type: Syntax.Property,
                    key: id,
                    value: parseAssignmentExpression(),
                    kind: 'init'
                };
            }
        } else if (token.type === Token.EOF || token.type === Token.Punctuator) {
            throwUnexpected(token);
        } else {
            key = parseObjectPropertyKey();
            expect(':');
            return {
                type: Syntax.Property,
                key: key,
                value: parseAssignmentExpression(),
                kind: 'init'
            };
        }
    }

    function parseObjectInitialiser() {
        var token, properties = [], property, name, kind, map = {}, toString = String;

        expect('{');

        while (!match('}')) {
            property = parseObjectProperty();

            if (property.key.type === Syntax.Identifier) {
                name = property.key.name;
            } else {
                name = toString(property.key.value);
            }
            kind = (property.kind === 'init') ? PropertyKind.Data : (property.kind === 'get') ? PropertyKind.Get : PropertyKind.Set;
            if (Object.prototype.hasOwnProperty.call(map, name)) {
                if (map[name] === PropertyKind.Data) {
                    if (strict && kind === PropertyKind.Data) {
                        throwErrorTolerant({}, Messages.StrictDuplicateProperty);
                    } else if (kind !== PropertyKind.Data) {
                        throwError({}, Messages.AccessorDataProperty);
                    }
                } else {
                    if (kind === PropertyKind.Data) {
                        throwError({}, Messages.AccessorDataProperty);
                    } else if (map[name] & kind) {
                        throwError({}, Messages.AccessorGetSet);
                    }
                }
                map[name] |= kind;
            } else {
                map[name] = kind;
            }

            properties.push(property);

            if (!match('}')) {
                expect(',');
            }
        }

        expect('}');

        return {
            type: Syntax.ObjectExpression,
            properties: properties
        };
    }

    // 11.1 Primary Expressions

    function parsePrimaryExpression() {
        var expr,
            token = lookahead(),
            type = token.type;

        if (type === Token.Identifier) {
            return {
                type: Syntax.Identifier,
                name: lex().value
            };
        }

        if (type === Token.StringLiteral || type === Token.NumericLiteral) {
            if (strict && token.octal) {
                throwErrorTolerant(token, Messages.StrictOctalLiteral);
            }
            return createLiteral(lex());
        }

        if (type === Token.Keyword) {
            if (matchKeyword('this')) {
                lex();
                return {
                    type: Syntax.ThisExpression
                };
            }

            if (matchKeyword('function')) {
                return parseFunctionExpression();
            }
        }

        if (type === Token.BooleanLiteral) {
            lex();
            token.value = (token.value === 'true');
            return createLiteral(token);
        }

        if (type === Token.NullLiteral) {
            lex();
            token.value = null;
            return createLiteral(token);
        }

        if (match('[')) {
            return parseArrayInitialiser();
        }

        if (match('{')) {
            return parseObjectInitialiser();
        }

        if (match('(')) {
            lex();
            state.lastParenthesized = expr = parseExpression();
            expect(')');
            return expr;
        }

        if (match('/') || match('/=')) {
            return createLiteral(scanRegExp());
        }

        return throwUnexpected(lex());
    }

    // 11.2 Left-Hand-Side Expressions

    function parseArguments() {
        var args = [];

        expect('(');

        if (!match(')')) {
            while (index < length) {
                args.push(parseAssignmentExpression());
                if (match(')')) {
                    break;
                }
                expect(',');
            }
        }

        expect(')');

        return args;
    }

    function parseNonComputedProperty() {
        var token = lex();

        if (!isIdentifierName(token)) {
            throwUnexpected(token);
        }

        return {
            type: Syntax.Identifier,
            name: token.value
        };
    }

    function parseNonComputedMember(object) {
        return {
            type: Syntax.MemberExpression,
            computed: false,
            object: object,
            property: parseNonComputedProperty()
        };
    }

    function parseComputedMember(object) {
        var property, expr;

        expect('[');
        property = parseExpression();
        expr = {
            type: Syntax.MemberExpression,
            computed: true,
            object: object,
            property: property
        };
        expect(']');
        return expr;
    }

    function parseCallMember(object) {
        return {
            type: Syntax.CallExpression,
            callee: object,
            'arguments': parseArguments()
        };
    }

    function parseNewExpression() {
        var expr;

        expectKeyword('new');

        expr = {
            type: Syntax.NewExpression,
            callee: parseLeftHandSideExpression(),
            'arguments': []
        };

        if (match('(')) {
            expr['arguments'] = parseArguments();
        }

        return expr;
    }

    function parseLeftHandSideExpressionAllowCall() {
        var useNew, expr;

        useNew = matchKeyword('new');
        expr = useNew ? parseNewExpression() : parsePrimaryExpression();

        while (index < length) {
            if (match('.')) {
                lex();
                expr = parseNonComputedMember(expr);
            } else if (match('[')) {
                expr = parseComputedMember(expr);
            } else if (match('(')) {
                expr = parseCallMember(expr);
            } else {
                break;
            }
        }

        return expr;
    }

    function parseLeftHandSideExpression() {
        var useNew, expr;

        useNew = matchKeyword('new');
        expr = useNew ? parseNewExpression() : parsePrimaryExpression();

        while (index < length) {
            if (match('.')) {
                lex();
                expr = parseNonComputedMember(expr);
            } else if (match('[')) {
                expr = parseComputedMember(expr);
            } else {
                break;
            }
        }

        return expr;
    }

    // 11.3 Postfix Expressions

    function parsePostfixExpression() {
        var expr = parseLeftHandSideExpressionAllowCall();

        if ((match('++') || match('--')) && !peekLineTerminator()) {
            // 11.3.1, 11.3.2
            if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
                throwError({}, Messages.StrictLHSPostfix);
            }
            expr = {
                type: Syntax.UpdateExpression,
                operator: lex().value,
                argument: expr,
                prefix: false
            };
        }

        return expr;
    }

    // 11.4 Unary Operators

    function parseUnaryExpression() {
        var token, expr;

        if (match('++') || match('--')) {
            token = lex();
            expr = parseUnaryExpression();
            // 11.4.4, 11.4.5
            if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
                throwError({}, Messages.StrictLHSPrefix);
            }
            expr = {
                type: Syntax.UpdateExpression,
                operator: token.value,
                argument: expr,
                prefix: true
            };
            return expr;
        }

        if (match('+') || match('-') || match('~') || match('!')) {
            expr = {
                type: Syntax.UnaryExpression,
                operator: lex().value,
                argument: parseUnaryExpression()
            };
            return expr;
        }

        if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
            expr = {
                type: Syntax.UnaryExpression,
                operator: lex().value,
                argument: parseUnaryExpression()
            };
            if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) {
                throwErrorTolerant({}, Messages.StrictDelete);
            }
            return expr;
        }

        return parsePostfixExpression();
    }

    // 11.5 Multiplicative Operators

    function parseMultiplicativeExpression() {
        var expr = parseUnaryExpression();

        while (match('*') || match('/') || match('%')) {
            expr = {
                type: Syntax.BinaryExpression,
                operator: lex().value,
                left: expr,
                right: parseUnaryExpression()
            };
        }

        return expr;
    }

    // 11.6 Additive Operators

    function parseAdditiveExpression() {
        var expr = parseMultiplicativeExpression();

        while (match('+') || match('-')) {
            expr = {
                type: Syntax.BinaryExpression,
                operator: lex().value,
                left: expr,
                right: parseMultiplicativeExpression()
            };
        }

        return expr;
    }

    // 11.7 Bitwise Shift Operators

    function parseShiftExpression() {
        var expr = parseAdditiveExpression();

        while (match('<<') || match('>>') || match('>>>')) {
            expr = {
                type: Syntax.BinaryExpression,
                operator: lex().value,
                left: expr,
                right: parseAdditiveExpression()
            };
        }

        return expr;
    }
    // 11.8 Relational Operators

    function parseRelationalExpression() {
        var expr, previousAllowIn;

        previousAllowIn = state.allowIn;
        state.allowIn = true;
        expr = parseShiftExpression();
        state.allowIn = previousAllowIn;

        if (match('<') || match('>') || match('<=') || match('>=')) {
            expr = {
                type: Syntax.BinaryExpression,
                operator: lex().value,
                left: expr,
                right: parseRelationalExpression()
            };
        } else if (state.allowIn && matchKeyword('in')) {
            lex();
            expr = {
                type: Syntax.BinaryExpression,
                operator: 'in',
                left: expr,
                right: parseRelationalExpression()
            };
        } else if (matchKeyword('instanceof')) {
            lex();
            expr = {
                type: Syntax.BinaryExpression,
                operator: 'instanceof',
                left: expr,
                right: parseRelationalExpression()
            };
        }

        return expr;
    }

    // 11.9 Equality Operators

    function parseEqualityExpression() {
        var expr = parseRelationalExpression();

        while (match('==') || match('!=') || match('===') || match('!==')) {
            expr = {
                type: Syntax.BinaryExpression,
                operator: lex().value,
                left: expr,
                right: parseRelationalExpression()
            };
        }

        return expr;
    }

    // 11.10 Binary Bitwise Operators

    function parseBitwiseANDExpression() {
        var expr = parseEqualityExpression();

        while (match('&')) {
            lex();
            expr = {
                type: Syntax.BinaryExpression,
                operator: '&',
                left: expr,
                right: parseEqualityExpression()
            };
        }

        return expr;
    }

    function parseBitwiseORExpression() {
        var expr = parseBitwiseANDExpression();

        while (match('|')) {
            lex();
            expr = {
                type: Syntax.BinaryExpression,
                operator: '|',
                left: expr,
                right: parseBitwiseANDExpression()
            };
        }

        return expr;
    }

    function parseBitwiseXORExpression() {
        var expr = parseBitwiseORExpression();

        while (match('^')) {
            lex();
            expr = {
                type: Syntax.BinaryExpression,
                operator: '^',
                left: expr,
                right: parseBitwiseORExpression()
            };
        }

        return expr;
    }

    // 11.11 Binary Logical Operators

    function parseLogicalANDExpression() {
        var expr = parseBitwiseXORExpression();

        while (match('&&')) {
            lex();
            expr = {
                type: Syntax.LogicalExpression,
                operator: '&&',
                left: expr,
                right: parseBitwiseXORExpression()
            };
        }

        return expr;
    }

    function parseLogicalORExpression() {
        var expr = parseLogicalANDExpression();

        while (match('||')) {
            lex();
            expr = {
                type: Syntax.LogicalExpression,
                operator: '||',
                left: expr,
                right: parseLogicalANDExpression()
            };
        }

        return expr;
    }

    // 11.12 Conditional Operator

    function parseConditionalExpression() {
        var expr, previousAllowIn, consequent;

        expr = parseLogicalORExpression();

        if (match('?')) {
            lex();
            previousAllowIn = state.allowIn;
            state.allowIn = true;
            consequent = parseAssignmentExpression();
            state.allowIn = previousAllowIn;
            expect(':');

            expr = {
                type: Syntax.ConditionalExpression,
                test: expr,
                consequent: consequent,
                alternate: parseAssignmentExpression()
            };
        }

        return expr;
    }

    // 11.13 Assignment Operators

    function parseAssignmentExpression() {
        var expr;

        expr = parseConditionalExpression();

        if (matchAssign()) {
            // LeftHandSideExpression
            if (state.lastParenthesized !== expr && !isLeftHandSide(expr)) {
                throwError({}, Messages.InvalidLHSInAssignment);
            }

            // 11.13.1
            if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
                throwError({}, Messages.StrictLHSAssignment);
            }

            expr = {
                type: Syntax.AssignmentExpression,
                operator: lex().value,
                left: expr,
                right: parseAssignmentExpression()
            };
        }

        return expr;
    }

    // 11.14 Comma Operator

    function parseExpression() {
        var expr = parseAssignmentExpression();

        if (match(',')) {
            expr = {
                type: Syntax.SequenceExpression,
                expressions: [ expr ]
            };

            while (index < length) {
                if (!match(',')) {
                    break;
                }
                lex();
                expr.expressions.push(parseAssignmentExpression());
            }

        }
        return expr;
    }

    // 12.1 Block

    function parseStatementList() {
        var list = [],
            statement;

        while (index < length) {
            if (match('}')) {
                break;
            }
            statement = parseSourceElement();
            if (typeof statement === 'undefined') {
                break;
            }
            list.push(statement);
        }

        return list;
    }

    function parseBlock() {
        var block;

        expect('{');

        block = parseStatementList();

        expect('}');

        return {
            type: Syntax.BlockStatement,
            body: block
        };
    }

    // 12.2 Variable Statement

    function parseVariableIdentifier() {
        var token = lex();

        if (token.type !== Token.Identifier) {
            throwUnexpected(token);
        }

        return {
            type: Syntax.Identifier,
            name: token.value
        };
    }

    function parseVariableDeclaration(kind) {
        var id = parseVariableIdentifier(),
            init = null;

        // 12.2.1
        if (strict && isRestrictedWord(id.name)) {
            throwErrorTolerant({}, Messages.StrictVarName);
        }

        if (kind === 'const') {
            expect('=');
            init = parseAssignmentExpression();
        } else if (match('=')) {
            lex();
            init = parseAssignmentExpression();
        }

        return {
            type: Syntax.VariableDeclarator,
            id: id,
            init: init
        };
    }

    function parseVariableDeclarationList(kind) {
        var list = [];

        while (index < length) {
            list.push(parseVariableDeclaration(kind));
            if (!match(',')) {
                break;
            }
            lex();
        }

        return list;
    }

    function parseVariableStatement() {
        var declarations;

        expectKeyword('var');

        declarations = parseVariableDeclarationList();

        consumeSemicolon();

        return {
            type: Syntax.VariableDeclaration,
            declarations: declarations,
            kind: 'var'
        };
    }

    // kind may be `const` or `let`
    // Both are experimental and not in the specification yet.
    // see http://wiki.ecmascript.org/doku.php?id=harmony:const
    // and http://wiki.ecmascript.org/doku.php?id=harmony:let
    function parseConstLetDeclaration(kind) {
        var declarations;

        expectKeyword(kind);

        declarations = parseVariableDeclarationList(kind);

        consumeSemicolon();

        return {
            type: Syntax.VariableDeclaration,
            declarations: declarations,
            kind: kind
        };
    }

    // 12.3 Empty Statement

    function parseEmptyStatement() {
        expect(';');

        return {
            type: Syntax.EmptyStatement
        };
    }

    // 12.4 Expression Statement

    function parseExpressionStatement() {
        var expr = parseExpression();

        consumeSemicolon();

        return {
            type: Syntax.ExpressionStatement,
            expression: expr
        };
    }

    // 12.5 If statement

    function parseIfStatement() {
        var test, consequent, alternate;

        expectKeyword('if');

        expect('(');

        test = parseExpression();

        expect(')');

        consequent = parseStatement();

        if (matchKeyword('else')) {
            lex();
            alternate = parseStatement();
        } else {
            alternate = null;
        }

        return {
            type: Syntax.IfStatement,
            test: test,
            consequent: consequent,
            alternate: alternate
        };
    }

    // 12.6 Iteration Statements

    function parseDoWhileStatement() {
        var body, test, oldInIteration;

        expectKeyword('do');

        oldInIteration = state.inIteration;
        state.inIteration = true;

        body = parseStatement();

        state.inIteration = oldInIteration;

        expectKeyword('while');

        expect('(');

        test = parseExpression();

        expect(')');

        if (match(';')) {
            lex();
        }

        return {
            type: Syntax.DoWhileStatement,
            body: body,
            test: test
        };
    }

    function parseWhileStatement() {
        var test, body, oldInIteration;

        expectKeyword('while');

        expect('(');

        test = parseExpression();

        expect(')');

        oldInIteration = state.inIteration;
        state.inIteration = true;

        body = parseStatement();

        state.inIteration = oldInIteration;

        return {
            type: Syntax.WhileStatement,
            test: test,
            body: body
        };
    }

    function parseForVariableDeclaration() {
        var token = lex();

        return {
            type: Syntax.VariableDeclaration,
            declarations: parseVariableDeclarationList(),
            kind: token.value
        };
    }

    function parseForStatement() {
        var init, test, update, left, right, body, oldInIteration;

        init = test = update = null;

        expectKeyword('for');

        expect('(');

        if (match(';')) {
            lex();
        } else {
            if (matchKeyword('var') || matchKeyword('let')) {
                state.allowIn = false;
                init = parseForVariableDeclaration();
                state.allowIn = true;

                if (init.declarations.length === 1 && matchKeyword('in')) {
                    lex();
                    left = init;
                    right = parseExpression();
                    init = null;
                }
            } else {
                state.allowIn = false;
                init = parseExpression();
                state.allowIn = true;

                if (matchKeyword('in')) {
                    // LeftHandSideExpression
                    if (matchKeyword('in') && (state.lastParenthesized !== init && !isLeftHandSide(init))) {
                        throwError({}, Messages.InvalidLHSInForIn);
                    }
                    lex();
                    left = init;
                    right = parseExpression();
                    init = null;
                }
            }

            if (typeof left === 'undefined') {
                expect(';');
            }
        }

        if (typeof left === 'undefined') {

            if (!match(';')) {
                test = parseExpression();
            }
            expect(';');

            if (!match(')')) {
                update = parseExpression();
            }
        }

        expect(')');

        oldInIteration = state.inIteration;
        state.inIteration = true;

        body = parseStatement();

        state.inIteration = oldInIteration;

        if (typeof left === 'undefined') {
            return {
                type: Syntax.ForStatement,
                init: init,
                test: test,
                update: update,
                body: body
            };
        }

        return {
            type: Syntax.ForInStatement,
            left: left,
            right: right,
            body: body,
            each: false
        };
    }

    // 12.7 The continue statement

    function parseContinueStatement() {
        var token, label = null;

        expectKeyword('continue');

        // Optimize the most common form: 'continue;'.
        if (source[index] === ';') {
            lex();

            if (!state.inIteration) {
                throwError({}, Messages.IllegalContinue);
            }

            return {
                type: Syntax.ContinueStatement,
                label: null
            };
        }

        if (peekLineTerminator()) {
            if (!state.inIteration) {
                throwError({}, Messages.IllegalContinue);
            }

            return {
                type: Syntax.ContinueStatement,
                label: null
            };
        }

        token = lookahead();
        if (token.type === Token.Identifier) {
            label = parseVariableIdentifier();

            if (!Object.prototype.hasOwnProperty.call(state.labelSet, label.name)) {
                throwError({}, Messages.UnknownLabel, label.name);
            }
        }

        consumeSemicolon();

        if (label === null && !state.inIteration) {
            throwError({}, Messages.IllegalContinue);
        }

        return {
            type: Syntax.ContinueStatement,
            label: label
        };
    }

    // 12.8 The break statement

    function parseBreakStatement() {
        var token, label = null;

        expectKeyword('break');

        // Optimize the most common form: 'break;'.
        if (source[index] === ';') {
            lex();

            if (!(state.inIteration || state.inSwitch)) {
                throwError({}, Messages.IllegalBreak);
            }

            return {
                type: Syntax.BreakStatement,
                label: null
            };
        }

        if (peekLineTerminator()) {
            if (!(state.inIteration || state.inSwitch)) {
                throwError({}, Messages.IllegalBreak);
            }

            return {
                type: Syntax.BreakStatement,
                label: null
            };
        }

        token = lookahead();
        if (token.type === Token.Identifier) {
            label = parseVariableIdentifier();

            if (!Object.prototype.hasOwnProperty.call(state.labelSet, label.name)) {
                throwError({}, Messages.UnknownLabel, label.name);
            }
        }

        consumeSemicolon();

        if (label === null && !(state.inIteration || state.inSwitch)) {
            throwError({}, Messages.IllegalBreak);
        }

        return {
            type: Syntax.BreakStatement,
            label: label
        };
    }

    // 12.9 The return statement

    function parseReturnStatement() {
        var token, argument = null;

        expectKeyword('return');

        if (!state.inFunctionBody) {
            throwErrorTolerant({}, Messages.IllegalReturn);
        }

        // 'return' followed by a space and an identifier is very common.
        if (source[index] === ' ') {
            if (isIdentifierStart(source[index + 1])) {
                argument = parseExpression();
                consumeSemicolon();
                return {
                    type: Syntax.ReturnStatement,
                    argument: argument
                };
            }
        }

        if (peekLineTerminator()) {
            return {
                type: Syntax.ReturnStatement,
                argument: null
            };
        }

        if (!match(';')) {
            token = lookahead();
            if (!match('}') && token.type !== Token.EOF) {
                argument = parseExpression();
            }
        }

        consumeSemicolon();

        return {
            type: Syntax.ReturnStatement,
            argument: argument
        };
    }

    // 12.10 The with statement

    function parseWithStatement() {
        var object, body;

        if (strict) {
            throwErrorTolerant({}, Messages.StrictModeWith);
        }

        expectKeyword('with');

        expect('(');

        object = parseExpression();

        expect(')');

        body = parseStatement();

        return {
            type: Syntax.WithStatement,
            object: object,
            body: body
        };
    }

    // 12.10 The swith statement

    function parseSwitchCase() {
        var test,
            consequent = [],
            statement;

        if (matchKeyword('default')) {
            lex();
            test = null;
        } else {
            expectKeyword('case');
            test = parseExpression();
        }
        expect(':');

        while (index < length) {
            if (match('}') || matchKeyword('default') || matchKeyword('case')) {
                break;
            }
            statement = parseStatement();
            if (typeof statement === 'undefined') {
                break;
            }
            consequent.push(statement);
        }

        return {
            type: Syntax.SwitchCase,
            test: test,
            consequent: consequent
        };
    }

    function parseSwitchStatement() {
        var discriminant, cases, oldInSwitch;

        expectKeyword('switch');

        expect('(');

        discriminant = parseExpression();

        expect(')');

        expect('{');

        if (match('}')) {
            lex();
            return {
                type: Syntax.SwitchStatement,
                discriminant: discriminant
            };
        }

        cases = [];

        oldInSwitch = state.inSwitch;
        state.inSwitch = true;

        while (index < length) {
            if (match('}')) {
                break;
            }
            cases.push(parseSwitchCase());
        }

        state.inSwitch = oldInSwitch;

        expect('}');

        return {
            type: Syntax.SwitchStatement,
            discriminant: discriminant,
            cases: cases
        };
    }

    // 12.13 The throw statement

    function parseThrowStatement() {
        var argument;

        expectKeyword('throw');

        if (peekLineTerminator()) {
            throwError({}, Messages.NewlineAfterThrow);
        }

        argument = parseExpression();

        consumeSemicolon();

        return {
            type: Syntax.ThrowStatement,
            argument: argument
        };
    }

    // 12.14 The try statement

    function parseCatchClause() {
        var param;

        expectKeyword('catch');

        expect('(');
        if (!match(')')) {
            param = parseExpression();
            // 12.14.1
            if (strict && param.type === Syntax.Identifier && isRestrictedWord(param.name)) {
                throwErrorTolerant({}, Messages.StrictCatchVariable);
            }
        }
        expect(')');

        return {
            type: Syntax.CatchClause,
            param: param,
            guard: null,
            body: parseBlock()
        };
    }

    function parseTryStatement() {
        var block, handlers = [], finalizer = null;

        expectKeyword('try');

        block = parseBlock();

        if (matchKeyword('catch')) {
            handlers.push(parseCatchClause());
        }

        if (matchKeyword('finally')) {
            lex();
            finalizer = parseBlock();
        }

        if (handlers.length === 0 && !finalizer) {
            throwError({}, Messages.NoCatchOrFinally);
        }

        return {
            type: Syntax.TryStatement,
            block: block,
            handlers: handlers,
            finalizer: finalizer
        };
    }

    // 12.15 The debugger statement

    function parseDebuggerStatement() {
        expectKeyword('debugger');

        consumeSemicolon();

        return {
            type: Syntax.DebuggerStatement
        };
    }

    // 12 Statements

    function parseStatement() {
        var token = lookahead(),
            expr,
            labeledBody;

        if (token.type === Token.EOF) {
            throwUnexpected(token);
        }

        if (token.type === Token.Punctuator) {
            switch (token.value) {
            case ';':
                return parseEmptyStatement();
            case '{':
                return parseBlock();
            case '(':
                return parseExpressionStatement();
            default:
                break;
            }
        }

        if (token.type === Token.Keyword) {
            switch (token.value) {
            case 'break':
                return parseBreakStatement();
            case 'continue':
                return parseContinueStatement();
            case 'debugger':
                return parseDebuggerStatement();
            case 'do':
                return parseDoWhileStatement();
            case 'for':
                return parseForStatement();
            case 'function':
                return parseFunctionDeclaration();
            case 'if':
                return parseIfStatement();
            case 'return':
                return parseReturnStatement();
            case 'switch':
                return parseSwitchStatement();
            case 'throw':
                return parseThrowStatement();
            case 'try':
                return parseTryStatement();
            case 'var':
                return parseVariableStatement();
            case 'while':
                return parseWhileStatement();
            case 'with':
                return parseWithStatement();
            default:
                break;
            }
        }

        expr = parseExpression();

        // 12.12 Labelled Statements
        if ((expr.type === Syntax.Identifier) && match(':')) {
            lex();

            if (Object.prototype.hasOwnProperty.call(state.labelSet, expr.name)) {
                throwError({}, Messages.Redeclaration, 'Label', expr.name);
            }

            state.labelSet[expr.name] = true;
            labeledBody = parseStatement();
            delete state.labelSet[expr.name];

            return {
                type: Syntax.LabeledStatement,
                label: expr,
                body: labeledBody
            };
        }

        consumeSemicolon();

        return {
            type: Syntax.ExpressionStatement,
            expression: expr
        };
    }

    // 13 Function Definition

    function parseFunctionSourceElements() {
        var sourceElement, sourceElements = [], token, directive, firstRestricted,
            oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody;

        expect('{');

        while (index < length) {
            token = lookahead();
            if (token.type !== Token.StringLiteral) {
                break;
            }

            sourceElement = parseSourceElement();
            sourceElements.push(sourceElement);
            if (sourceElement.expression.type !== Syntax.Literal) {
                // this is not directive
                break;
            }
            directive = sliceSource(token.range[0] + 1, token.range[1] - 1);
            if (directive === 'use strict') {
                strict = true;
                if (firstRestricted) {
                    throwError(firstRestricted, Messages.StrictOctalLiteral);
                }
            } else {
                if (!firstRestricted && token.octal) {
                    firstRestricted = token;
                }
            }
        }

        oldLabelSet = state.labelSet;
        oldInIteration = state.inIteration;
        oldInSwitch = state.inSwitch;
        oldInFunctionBody = state.inFunctionBody;

        state.labelSet = {};
        state.inIteration = false;
        state.inSwitch = false;
        state.inFunctionBody = true;

        while (index < length) {
            if (match('}')) {
                break;
            }
            sourceElement = parseSourceElement();
            if (typeof sourceElement === 'undefined') {
                break;
            }
            sourceElements.push(sourceElement);
        }

        expect('}');

        state.labelSet = oldLabelSet;
        state.inIteration = oldInIteration;
        state.inSwitch = oldInSwitch;
        state.inFunctionBody = oldInFunctionBody;

        return {
            type: Syntax.BlockStatement,
            body: sourceElements
        };
    }

    function parseFunctionDeclaration() {
        var id, param, params = [], body, token, firstRestricted, message, previousStrict, paramSet;

        expectKeyword('function');
        token = lookahead();
        id = parseVariableIdentifier();
        if (strict) {
            if (isRestrictedWord(token.value)) {
                throwError(token, Messages.StrictFunctionName);
            }
        } else {
            if (isRestrictedWord(token.value)) {
                firstRestricted = token;
                message = Messages.StrictFunctionName;
            } else if (isStrictModeReservedWord(token.value)) {
                firstRestricted = token;
                message = Messages.StrictReservedWord;
            }
        }

        expect('(');

        if (!match(')')) {
            paramSet = {};
            while (index < length) {
                token = lookahead();
                param = parseVariableIdentifier();
                if (strict) {
                    if (isRestrictedWord(token.value)) {
                        throwError(token, Messages.StrictParamName);
                    }
                    if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) {
                        throwError(token, Messages.StrictParamDupe);
                    }
                } else if (!firstRestricted) {
                    if (isRestrictedWord(token.value)) {
                        firstRestricted = token;
                        message = Messages.StrictParamName;
                    } else if (isStrictModeReservedWord(token.value)) {
                        firstRestricted = token;
                        message = Messages.StrictReservedWord;
                    } else if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) {
                        firstRestricted = token;
                        message = Messages.StrictParamDupe;
                    }
                }
                params.push(param);
                paramSet[param.name] = true;
                if (match(')')) {
                    break;
                }
                expect(',');
            }
        }

        expect(')');

        previousStrict = strict;
        body = parseFunctionSourceElements();
        if (strict && firstRestricted) {
            throwError(firstRestricted, message);
        }
        strict = previousStrict;

        return {
            type: Syntax.FunctionDeclaration,
            id: id,
            params: params,
            body: body
        };
    }

    function parseFunctionExpression() {
        var token, id = null, firstRestricted, message, param, params = [], body, previousStrict, paramSet;

        expectKeyword('function');

        if (!match('(')) {
            token = lookahead();
            id = parseVariableIdentifier();
            if (strict) {
                if (isRestrictedWord(token.value)) {
                    throwError(token, Messages.StrictFunctionName);
                }
            } else {
                if (isRestrictedWord(token.value)) {
                    firstRestricted = token;
                    message = Messages.StrictFunctionName;
                } else if (isStrictModeReservedWord(token.value)) {
                    firstRestricted = token;
                    message = Messages.StrictReservedWord;
                }
            }
        }

        expect('(');

        if (!match(')')) {
            paramSet = {};
            while (index < length) {
                token = lookahead();
                param = parseVariableIdentifier();
                if (strict) {
                    if (isRestrictedWord(token.value)) {
                        throwError(token, Messages.StrictParamName);
                    }
                    if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) {
                        throwError(token, Messages.StrictParamDupe);
                    }
                } else if (!firstRestricted) {
                    if (isRestrictedWord(token.value)) {
                        firstRestricted = token;
                        message = Messages.StrictParamName;
                    } else if (isStrictModeReservedWord(token.value)) {
                        firstRestricted = token;
                        message = Messages.StrictReservedWord;
                    } else if (Object.prototype.hasOwnProperty.call(paramSet, token.value)) {
                        firstRestricted = token;
                        message = Messages.StrictParamDupe;
                    }
                }
                params.push(param);
                paramSet[param.name] = true;
                if (match(')')) {
                    break;
                }
                expect(',');
            }
        }

        expect(')');

        previousStrict = strict;
        body = parseFunctionSourceElements();
        if (strict && firstRestricted) {
            throwError(firstRestricted, message);
        }
        strict = previousStrict;

        return {
            type: Syntax.FunctionExpression,
            id: id,
            params: params,
            body: body
        };
    }

    // 14 Program

    function parseSourceElement() {
        var token = lookahead();

        if (token.type === Token.Keyword) {
            switch (token.value) {
            case 'const':
            case 'let':
                return parseConstLetDeclaration(token.value);
            case 'function':
                return parseFunctionDeclaration();
            default:
                return parseStatement();
            }
        }

        if (token.type !== Token.EOF) {
            return parseStatement();
        }
    }

    function parseSourceElements() {
        var sourceElement, sourceElements = [], token, directive, firstRestricted;

        while (index < length) {
            token = lookahead();
            if (token.type !== Token.StringLiteral) {
                break;
            }

            sourceElement = parseSourceElement();
            sourceElements.push(sourceElement);
            if (sourceElement.expression.type !== Syntax.Literal) {
                // this is not directive
                break;
            }
            directive = sliceSource(token.range[0] + 1, token.range[1] - 1);
            if (directive === 'use strict') {
                strict = true;
                if (firstRestricted) {
                    throwError(firstRestricted, Messages.StrictOctalLiteral);
                }
            } else {
                if (!firstRestricted && token.octal) {
                    firstRestricted = token;
                }
            }
        }

        while (index < length) {
            sourceElement = parseSourceElement();
            if (typeof sourceElement === 'undefined') {
                break;
            }
            sourceElements.push(sourceElement);
        }
        return sourceElements;
    }

    function parseProgram() {
        var program;
        strict = false;
        program = {
            type: Syntax.Program,
            body: parseSourceElements()
        };
        return program;
    }

    // The following functions are needed only when the option to preserve
    // the comments is active.

    function addComment(start, end, type, value) {
        assert(typeof start === 'number', 'Comment must have valid position');

        // Because the way the actual token is scanned, often the comments
        // (if any) are skipped twice during the lexical analysis.
        // Thus, we need to skip adding a comment if the comment array already
        // handled it.
        if (extra.comments.length > 0) {
            if (extra.comments[extra.comments.length - 1].range[1] > start) {
                return;
            }
        }

        extra.comments.push({
            range: [start, end],
            type: type,
            value: value
        });
    }

    function scanComment() {
        var comment, ch, start, blockComment, lineComment;

        comment = '';
        blockComment = false;
        lineComment = false;

        while (index < length) {
            ch = source[index];

            if (lineComment) {
                ch = nextChar();
                if (index >= length) {
                    lineComment = false;
                    comment += ch;
                    addComment(start, index, 'Line', comment);
                } else if (isLineTerminator(ch)) {
                    lineComment = false;
                    addComment(start, index, 'Line', comment);
                    if (ch === '\r' && source[index] === '\n') {
                        ++index;
                    }
                    ++lineNumber;
                    lineStart = index;
                    comment = '';
                } else {
                    comment += ch;
                }
            } else if (blockComment) {
                if (isLineTerminator(ch)) {
                    if (ch === '\r' && source[index + 1] === '\n') {
                        ++index;
                        comment += '\r\n';
                    } else {
                        comment += ch;
                    }
                    ++lineNumber;
                    ++index;
                    lineStart = index;
                    if (index >= length) {
                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                    }
                } else {
                    ch = nextChar();
                    if (index >= length) {
                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                    }
                    comment += ch;
                    if (ch === '*') {
                        ch = source[index];
                        if (ch === '/') {
                            comment = comment.substr(0, comment.length - 1);
                            blockComment = false;
                            ++index;
                            addComment(start, index, 'Block', comment);
                            comment = '';
                        }
                    }
                }
            } else if (ch === '/') {
                ch = source[index + 1];
                if (ch === '/') {
                    start = index;
                    index += 2;
                    lineComment = true;
                } else if (ch === '*') {
                    start = index;
                    index += 2;
                    blockComment = true;
                    if (index >= length) {
                        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
                    }
                } else {
                    break;
                }
            } else if (isWhiteSpace(ch)) {
                ++index;
            } else if (isLineTerminator(ch)) {
                ++index;
                if (ch ===  '\r' && source[index] === '\n') {
                    ++index;
                }
                ++lineNumber;
                lineStart = index;
            } else {
                break;
            }
        }
    }

    function collectToken() {
        var token = extra.advance(),
            range,
            value;

        if (token.type !== Token.EOF) {
            range = [token.range[0], token.range[1]];
            value = sliceSource(token.range[0], token.range[1]);
            extra.tokens.push({
                type: TokenName[token.type],
                value: value,
                range: range
            });
        }

        return token;
    }

    function collectRegex() {
        var pos, regex, token;

        skipComment();

        pos = index;
        regex = extra.scanRegExp();

        // Pop the previous token, which is likely '/' or '/='
        if (extra.tokens.length > 0) {
            token = extra.tokens[extra.tokens.length - 1];
            if (token.range[0] === pos && token.type === 'Punctuator') {
                if (token.value === '/' || token.value === '/=') {
                    extra.tokens.pop();
                }
            }
        }

        extra.tokens.push({
            type: 'RegularExpression',
            value: regex.literal,
            range: [pos, index]
        });

        return regex;
    }

    function createLiteral(token) {
        return {
            type: Syntax.Literal,
            value: token.value
        };
    }

    function createRawLiteral(token) {
        return {
            type: Syntax.Literal,
            value: token.value,
            raw: sliceSource(token.range[0], token.range[1])
        };
    }

    function wrapTrackingFunction(range, loc) {

        return function (parseFunction) {

            function isBinary(node) {
                return node.type === Syntax.LogicalExpression ||
                    node.type === Syntax.BinaryExpression;
            }

            function visit(node) {
                if (isBinary(node.left)) {
                    visit(node.left);
                }
                if (isBinary(node.right)) {
                    visit(node.right);
                }

                if (range && typeof node.range === 'undefined') {
                    node.range = [node.left.range[0], node.right.range[1]];
                }
                if (loc && typeof node.loc === 'undefined') {
                    node.loc = {
                        start: node.left.loc.start,
                        end: node.right.loc.end
                    };
                }
            }

            return function () {
                var node, rangeInfo, locInfo;

                skipComment();
                rangeInfo = [index, 0];
                locInfo = {
                    start: {
                        line: lineNumber,
                        column: index - lineStart
                    }
                };

                node = parseFunction.apply(null, arguments);
                if (typeof node !== 'undefined') {

                    if (range) {
                        rangeInfo[1] = index;
                        node.range = rangeInfo;
                    }

                    if (loc) {
                        locInfo.end = {
                            line: lineNumber,
                            column: index - lineStart
                        };
                        node.loc = locInfo;
                    }

                    if (isBinary(node)) {
                        visit(node);
                    }

                    if (node.type === Syntax.MemberExpression) {
                        if (typeof node.object.range !== 'undefined') {
                            node.range[0] = node.object.range[0];
                        }
                        if (typeof node.object.loc !== 'undefined') {
                            node.loc.start = node.object.loc.start;
                        }
                    }
                    return node;
                }
            };

        };
    }

    function patch() {

        var wrapTracking;

        if (extra.comments) {
            extra.skipComment = skipComment;
            skipComment = scanComment;
        }

        if (extra.raw) {
            extra.createLiteral = createLiteral;
            createLiteral = createRawLiteral;
        }

        if (extra.range || extra.loc) {

            wrapTracking = wrapTrackingFunction(extra.range, extra.loc);

            extra.parseAdditiveExpression = parseAdditiveExpression;
            extra.parseAssignmentExpression = parseAssignmentExpression;
            extra.parseBitwiseANDExpression = parseBitwiseANDExpression;
            extra.parseBitwiseORExpression = parseBitwiseORExpression;
            extra.parseBitwiseXORExpression = parseBitwiseXORExpression;
            extra.parseBlock = parseBlock;
            extra.parseFunctionSourceElements = parseFunctionSourceElements;
            extra.parseCallMember = parseCallMember;
            extra.parseCatchClause = parseCatchClause;
            extra.parseComputedMember = parseComputedMember;
            extra.parseConditionalExpression = parseConditionalExpression;
            extra.parseConstLetDeclaration = parseConstLetDeclaration;
            extra.parseEqualityExpression = parseEqualityExpression;
            extra.parseExpression = parseExpression;
            extra.parseForVariableDeclaration = parseForVariableDeclaration;
            extra.parseFunctionDeclaration = parseFunctionDeclaration;
            extra.parseFunctionExpression = parseFunctionExpression;
            extra.parseLogicalANDExpression = parseLogicalANDExpression;
            extra.parseLogicalORExpression = parseLogicalORExpression;
            extra.parseMultiplicativeExpression = parseMultiplicativeExpression;
            extra.parseNewExpression = parseNewExpression;
            extra.parseNonComputedMember = parseNonComputedMember;
            extra.parseNonComputedProperty = parseNonComputedProperty;
            extra.parseObjectProperty = parseObjectProperty;
            extra.parseObjectPropertyKey = parseObjectPropertyKey;
            extra.parsePostfixExpression = parsePostfixExpression;
            extra.parsePrimaryExpression = parsePrimaryExpression;
            extra.parseProgram = parseProgram;
            extra.parsePropertyFunction = parsePropertyFunction;
            extra.parseRelationalExpression = parseRelationalExpression;
            extra.parseStatement = parseStatement;
            extra.parseShiftExpression = parseShiftExpression;
            extra.parseSwitchCase = parseSwitchCase;
            extra.parseUnaryExpression = parseUnaryExpression;
            extra.parseVariableDeclaration = parseVariableDeclaration;
            extra.parseVariableIdentifier = parseVariableIdentifier;

            parseAdditiveExpression = wrapTracking(extra.parseAdditiveExpression);
            parseAssignmentExpression = wrapTracking(extra.parseAssignmentExpression);
            parseBitwiseANDExpression = wrapTracking(extra.parseBitwiseANDExpression);
            parseBitwiseORExpression = wrapTracking(extra.parseBitwiseORExpression);
            parseBitwiseXORExpression = wrapTracking(extra.parseBitwiseXORExpression);
            parseBlock = wrapTracking(extra.parseBlock);
            parseFunctionSourceElements = wrapTracking(extra.parseFunctionSourceElements);
            parseCallMember = wrapTracking(extra.parseCallMember);
            parseCatchClause = wrapTracking(extra.parseCatchClause);
            parseComputedMember = wrapTracking(extra.parseComputedMember);
            parseConditionalExpression = wrapTracking(extra.parseConditionalExpression);
            parseConstLetDeclaration = wrapTracking(extra.parseConstLetDeclaration);
            parseEqualityExpression = wrapTracking(extra.parseEqualityExpression);
            parseExpression = wrapTracking(extra.parseExpression);
            parseForVariableDeclaration = wrapTracking(extra.parseForVariableDeclaration);
            parseFunctionDeclaration = wrapTracking(extra.parseFunctionDeclaration);
            parseFunctionExpression = wrapTracking(extra.parseFunctionExpression);
            parseLogicalANDExpression = wrapTracking(extra.parseLogicalANDExpression);
            parseLogicalORExpression = wrapTracking(extra.parseLogicalORExpression);
            parseMultiplicativeExpression = wrapTracking(extra.parseMultiplicativeExpression);
            parseNewExpression = wrapTracking(extra.parseNewExpression);
            parseNonComputedMember = wrapTracking(extra.parseNonComputedMember);
            parseNonComputedProperty = wrapTracking(extra.parseNonComputedProperty);
            parseObjectProperty = wrapTracking(extra.parseObjectProperty);
            parseObjectPropertyKey = wrapTracking(extra.parseObjectPropertyKey);
            parsePostfixExpression = wrapTracking(extra.parsePostfixExpression);
            parsePrimaryExpression = wrapTracking(extra.parsePrimaryExpression);
            parseProgram = wrapTracking(extra.parseProgram);
            parsePropertyFunction = wrapTracking(extra.parsePropertyFunction);
            parseRelationalExpression = wrapTracking(extra.parseRelationalExpression);
            parseStatement = wrapTracking(extra.parseStatement);
            parseShiftExpression = wrapTracking(extra.parseShiftExpression);
            parseSwitchCase = wrapTracking(extra.parseSwitchCase);
            parseUnaryExpression = wrapTracking(extra.parseUnaryExpression);
            parseVariableDeclaration = wrapTracking(extra.parseVariableDeclaration);
            parseVariableIdentifier = wrapTracking(extra.parseVariableIdentifier);
        }

        if (typeof extra.tokens !== 'undefined') {
            extra.advance = advance;
            extra.scanRegExp = scanRegExp;

            advance = collectToken;
            scanRegExp = collectRegex;
        }
    }

    function unpatch() {
        if (typeof extra.skipComment === 'function') {
            skipComment = extra.skipComment;
        }

        if (extra.raw) {
            createLiteral = extra.createLiteral;
        }

        if (extra.range || extra.loc) {
            parseAdditiveExpression = extra.parseAdditiveExpression;
            parseAssignmentExpression = extra.parseAssignmentExpression;
            parseBitwiseANDExpression = extra.parseBitwiseANDExpression;
            parseBitwiseORExpression = extra.parseBitwiseORExpression;
            parseBitwiseXORExpression = extra.parseBitwiseXORExpression;
            parseBlock = extra.parseBlock;
            parseFunctionSourceElements = extra.parseFunctionSourceElements;
            parseCallMember = extra.parseCallMember;
            parseCatchClause = extra.parseCatchClause;
            parseComputedMember = extra.parseComputedMember;
            parseConditionalExpression = extra.parseConditionalExpression;
            parseConstLetDeclaration = extra.parseConstLetDeclaration;
            parseEqualityExpression = extra.parseEqualityExpression;
            parseExpression = extra.parseExpression;
            parseForVariableDeclaration = extra.parseForVariableDeclaration;
            parseFunctionDeclaration = extra.parseFunctionDeclaration;
            parseFunctionExpression = extra.parseFunctionExpression;
            parseLogicalANDExpression = extra.parseLogicalANDExpression;
            parseLogicalORExpression = extra.parseLogicalORExpression;
            parseMultiplicativeExpression = extra.parseMultiplicativeExpression;
            parseNewExpression = extra.parseNewExpression;
            parseNonComputedMember = extra.parseNonComputedMember;
            parseNonComputedProperty = extra.parseNonComputedProperty;
            parseObjectProperty = extra.parseObjectProperty;
            parseObjectPropertyKey = extra.parseObjectPropertyKey;
            parsePrimaryExpression = extra.parsePrimaryExpression;
            parsePostfixExpression = extra.parsePostfixExpression;
            parseProgram = extra.parseProgram;
            parsePropertyFunction = extra.parsePropertyFunction;
            parseRelationalExpression = extra.parseRelationalExpression;
            parseStatement = extra.parseStatement;
            parseShiftExpression = extra.parseShiftExpression;
            parseSwitchCase = extra.parseSwitchCase;
            parseUnaryExpression = extra.parseUnaryExpression;
            parseVariableDeclaration = extra.parseVariableDeclaration;
            parseVariableIdentifier = extra.parseVariableIdentifier;
        }

        if (typeof extra.scanRegExp === 'function') {
            advance = extra.advance;
            scanRegExp = extra.scanRegExp;
        }
    }

    function stringToArray(str) {
        var length = str.length,
            result = [],
            i;
        for (i = 0; i < length; ++i) {
            result[i] = str.charAt(i);
        }
        return result;
    }

    function parse(code, options) {
        var program, toString;

        toString = String;
        if (typeof code !== 'string' && !(code instanceof String)) {
            code = toString(code);
        }

        source = code;
        index = 0;
        lineNumber = (source.length > 0) ? 1 : 0;
        lineStart = 0;
        length = source.length;
        buffer = null;
        state = {
            allowIn: true,
            labelSet: {},
            lastParenthesized: null,
            inFunctionBody: false,
            inIteration: false,
            inSwitch: false
        };

        extra = {};
        if (typeof options !== 'undefined') {
            extra.range = (typeof options.range === 'boolean') && options.range;
            extra.loc = (typeof options.loc === 'boolean') && options.loc;
            extra.raw = (typeof options.raw === 'boolean') && options.raw;
            if (typeof options.tokens === 'boolean' && options.tokens) {
                extra.tokens = [];
            }
            if (typeof options.comment === 'boolean' && options.comment) {
                extra.comments = [];
            }
            if (typeof options.tolerant === 'boolean' && options.tolerant) {
                extra.errors = [];
            }
        }

        if (length > 0) {
            if (typeof source[0] === 'undefined') {
                // Try first to convert to a string. This is good as fast path
                // for old IE which understands string indexing for string
                // literals only and not for string object.
                if (code instanceof String) {
                    source = code.valueOf();
                }

                // Force accessing the characters via an array.
                if (typeof source[0] === 'undefined') {
                    source = stringToArray(code);
                }
            }
        }

        patch();
        try {
            program = parseProgram();
            if (typeof extra.comments !== 'undefined') {
                program.comments = extra.comments;
            }
            if (typeof extra.tokens !== 'undefined') {
                program.tokens = extra.tokens;
            }
            if (typeof extra.errors !== 'undefined') {
                program.errors = extra.errors;
            }
        } catch (e) {
            throw e;
        } finally {
            unpatch();
            extra = {};
        }

        return program;
    }

    // Sync with package.json.
    exports.version = '1.0.0-dev';

    exports.parse = parse;

    // Deep copy.
    exports.Syntax = (function () {
        var name, types = {};

        if (typeof Object.create === 'function') {
            types = Object.create(null);
        }

        for (name in Syntax) {
            if (Syntax.hasOwnProperty(name)) {
                types[name] = Syntax[name];
            }
        }

        if (typeof Object.freeze === 'function') {
            Object.freeze(types);
        }

        return types;
    }());

}(typeof exports === 'undefined' ? (esprima = {}) : exports));
/* vim: set sw=4 ts=4 et tw=80 : */
});
define('uglifyjs/consolidator', ["require", "exports", "module", "env!env/assert", "./parse-js", "./process"], function(require, exports, module, assert) {

/**
 * @preserve Copyright 2012 Robert Gust-Bardon <http://robert.gust-bardon.org/>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *     * Redistributions of source code must retain the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer.
 *
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials
 *       provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/**
 * @fileoverview Enhances <a href="https://github.com/mishoo/UglifyJS/"
 * >UglifyJS</a> with consolidation of null, Boolean, and String values.
 * <p>Also known as aliasing, this feature has been deprecated in <a href=
 * "http://closure-compiler.googlecode.com/">the Closure Compiler</a> since its
 * initial release, where it is unavailable from the <abbr title=
 * "command line interface">CLI</a>. The Closure Compiler allows one to log and
 * influence this process. In contrast, this implementation does not introduce
 * any variable declarations in global code and derives String values from
 * identifier names used as property accessors.</p>
 * <p>Consolidating literals may worsen the data compression ratio when an <a
 * href="http://tools.ietf.org/html/rfc2616#section-3.5">encoding
 * transformation</a> is applied. For instance, <a href=
 * "http://code.jquery.com/jquery-1.7.1.js">jQuery 1.7.1</a> takes 248235 bytes.
 * Building it with <a href="https://github.com/mishoo/UglifyJS/tarball/v1.2.5">
 * UglifyJS v1.2.5</a> results in 93647 bytes (37.73% of the original) which are
 * then compressed to 33154 bytes (13.36% of the original) using <a href=
 * "http://linux.die.net/man/1/gzip">gzip(1)</a>. Building it with the same
 * version of UglifyJS 1.2.5 patched with the implementation of consolidation
 * results in 80784 bytes (a decrease of 12863 bytes, i.e. 13.74%, in comparison
 * to the aforementioned 93647 bytes) which are then compressed to 34013 bytes
 * (an increase of 859 bytes, i.e. 2.59%, in comparison to the aforementioned
 * 33154 bytes).</p>
 * <p>Written in <a href="http://es5.github.com/#x4.2.2">the strict variant</a>
 * of <a href="http://es5.github.com/">ECMA-262 5.1 Edition</a>. Encoded in <a
 * href="http://tools.ietf.org/html/rfc3629">UTF-8</a>. Follows <a href=
 * "http://google-styleguide.googlecode.com/svn-history/r76/trunk/javascriptguide.xml"
 * >Revision 2.28 of the Google JavaScript Style Guide</a> (except for the
 * discouraged use of the {@code function} tag and the {@code namespace} tag).
 * 100% typed for the <a href=
 * "http://closure-compiler.googlecode.com/files/compiler-20120123.tar.gz"
 * >Closure Compiler Version 1741</a>.</p>
 * <p>Should you find this software useful, please consider <a href=
 * "https://paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=JZLW72X8FD4WG"
 * >a donation</a>.</p>
 * @author follow.me@RGustBardon (Robert Gust-Bardon)
 * @supported Tested with:
 *     <ul>
 *     <li><a href="http://nodejs.org/dist/v0.6.10/">Node v0.6.10</a>,</li>
 *     <li><a href="https://github.com/mishoo/UglifyJS/tarball/v1.2.5">UglifyJS
 *       v1.2.5</a>.</li>
 *     </ul>
 */

/*global console:false, exports:true, module:false, require:false */
/*jshint sub:true */
/**
 * Consolidates null, Boolean, and String values found inside an <abbr title=
 * "abstract syntax tree">AST</abbr>.
 * @param {!TSyntacticCodeUnit} oAbstractSyntaxTree An array-like object
 *     representing an <abbr title="abstract syntax tree">AST</abbr>.
 * @return {!TSyntacticCodeUnit} An array-like object representing an <abbr
 *     title="abstract syntax tree">AST</abbr> with its null, Boolean, and
 *     String values consolidated.
 */
// TODO(user) Consolidation of mathematical values found in numeric literals.
// TODO(user) Unconsolidation.
// TODO(user) Consolidation of ECMA-262 6th Edition programs.
// TODO(user) Rewrite in ECMA-262 6th Edition.
exports['ast_consolidate'] = function(oAbstractSyntaxTree) {
  'use strict';
  /*jshint bitwise:true, curly:true, eqeqeq:true, forin:true, immed:true,
        latedef:true, newcap:true, noarge:true, noempty:true, nonew:true,
        onevar:true, plusplus:true, regexp:true, undef:true, strict:true,
        sub:false, trailing:true */

  var _,
      /**
       * A record consisting of data about one or more source elements.
       * @constructor
       * @nosideeffects
       */
      TSourceElementsData = function() {
        /**
         * The category of the elements.
         * @type {number}
         * @see ESourceElementCategories
         */
        this.nCategory = ESourceElementCategories.N_OTHER;
        /**
         * The number of occurrences (within the elements) of each primitive
         * value that could be consolidated.
         * @type {!Array.<!Object.<string, number>>}
         */
        this.aCount = [];
        this.aCount[EPrimaryExpressionCategories.N_IDENTIFIER_NAMES] = {};
        this.aCount[EPrimaryExpressionCategories.N_STRING_LITERALS] = {};
        this.aCount[EPrimaryExpressionCategories.N_NULL_AND_BOOLEAN_LITERALS] =
            {};
        /**
         * Identifier names found within the elements.
         * @type {!Array.<string>}
         */
        this.aIdentifiers = [];
        /**
         * Prefixed representation Strings of each primitive value that could be
         * consolidated within the elements.
         * @type {!Array.<string>}
         */
        this.aPrimitiveValues = [];
      },
      /**
       * A record consisting of data about a primitive value that could be
       * consolidated.
       * @constructor
       * @nosideeffects
       */
      TPrimitiveValue = function() {
        /**
         * The difference in the number of terminal symbols between the original
         * source text and the one with the primitive value consolidated. If the
         * difference is positive, the primitive value is considered worthwhile.
         * @type {number}
         */
        this.nSaving = 0;
        /**
         * An identifier name of the variable that will be declared and assigned
         * the primitive value if the primitive value is consolidated.
         * @type {string}
         */
        this.sName = '';
      },
      /**
       * A record consisting of data on what to consolidate within the range of
       * source elements that is currently being considered.
       * @constructor
       * @nosideeffects
       */
      TSolution = function() {
        /**
         * An object whose keys are prefixed representation Strings of each
         * primitive value that could be consolidated within the elements and
         * whose values are corresponding data about those primitive values.
         * @type {!Object.<string, {nSaving: number, sName: string}>}
         * @see TPrimitiveValue
         */
        this.oPrimitiveValues = {};
        /**
         * The difference in the number of terminal symbols between the original
         * source text and the one with all the worthwhile primitive values
         * consolidated.
         * @type {number}
         * @see TPrimitiveValue#nSaving
         */
        this.nSavings = 0;
      },
      /**
       * The processor of <abbr title="abstract syntax tree">AST</abbr>s found
       * in UglifyJS.
       * @namespace
       * @type {!TProcessor}
       */
      oProcessor = (/** @type {!TProcessor} */ require('./process')),
      /**
       * A record consisting of a number of constants that represent the
       * difference in the number of terminal symbols between a source text with
       * a modified syntactic code unit and the original one.
       * @namespace
       * @type {!Object.<string, number>}
       */
      oWeights = {
        /**
         * The difference in the number of punctuators required by the bracket
         * notation and the dot notation.
         * <p><code>'[]'.length - '.'.length</code></p>
         * @const
         * @type {number}
         */
        N_PROPERTY_ACCESSOR: 1,
        /**
         * The number of punctuators required by a variable declaration with an
         * initialiser.
         * <p><code>':'.length + ';'.length</code></p>
         * @const
         * @type {number}
         */
        N_VARIABLE_DECLARATION: 2,
        /**
         * The number of terminal symbols required to introduce a variable
         * statement (excluding its variable declaration list).
         * <p><code>'var '.length</code></p>
         * @const
         * @type {number}
         */
        N_VARIABLE_STATEMENT_AFFIXATION: 4,
        /**
         * The number of terminal symbols needed to enclose source elements
         * within a function call with no argument values to a function with an
         * empty parameter list.
         * <p><code>'(function(){}());'.length</code></p>
         * @const
         * @type {number}
         */
        N_CLOSURE: 17
      },
      /**
       * Categories of primary expressions from which primitive values that
       * could be consolidated are derivable.
       * @namespace
       * @enum {number}
       */
      EPrimaryExpressionCategories = {
        /**
         * Identifier names used as property accessors.
         * @type {number}
         */
        N_IDENTIFIER_NAMES: 0,
        /**
         * String literals.
         * @type {number}
         */
        N_STRING_LITERALS: 1,
        /**
         * Null and Boolean literals.
         * @type {number}
         */
        N_NULL_AND_BOOLEAN_LITERALS: 2
      },
      /**
       * Prefixes of primitive values that could be consolidated.
       * The String values of the prefixes must have same number of characters.
       * The prefixes must not be used in any properties defined in any version
       * of <a href=
       * "http://www.ecma-international.org/publications/standards/Ecma-262.htm"
       * >ECMA-262</a>.
       * @namespace
       * @enum {string}
       */
      EValuePrefixes = {
        /**
         * Identifies String values.
         * @type {string}
         */
        S_STRING: '#S',
        /**
         * Identifies null and Boolean values.
         * @type {string}
         */
        S_SYMBOLIC: '#O'
      },
      /**
       * Categories of source elements in terms of their appropriateness of
       * having their primitive values consolidated.
       * @namespace
       * @enum {number}
       */
      ESourceElementCategories = {
        /**
         * Identifies a source element that includes the <a href=
         * "http://es5.github.com/#x12.10">{@code with}</a> statement.
         * @type {number}
         */
        N_WITH: 0,
        /**
         * Identifies a source element that includes the <a href=
         * "http://es5.github.com/#x15.1.2.1">{@code eval}</a> identifier name.
         * @type {number}
         */
        N_EVAL: 1,
        /**
         * Identifies a source element that must be excluded from the process
         * unless its whole scope is examined.
         * @type {number}
         */
        N_EXCLUDABLE: 2,
        /**
         * Identifies source elements not posing any problems.
         * @type {number}
         */
        N_OTHER: 3
      },
      /**
       * The list of literals (other than the String ones) whose primitive
       * values can be consolidated.
       * @const
       * @type {!Array.<string>}
       */
      A_OTHER_SUBSTITUTABLE_LITERALS = [
        'null',   // The null literal.
        'false',  // The Boolean literal {@code false}.
        'true'    // The Boolean literal {@code true}.
      ];

  (/**
    * Consolidates all worthwhile primitive values in a syntactic code unit.
    * @param {!TSyntacticCodeUnit} oSyntacticCodeUnit An array-like object
    *     representing the branch of the abstract syntax tree representing the
    *     syntactic code unit along with its scope.
    * @see TPrimitiveValue#nSaving
    */
   function fExamineSyntacticCodeUnit(oSyntacticCodeUnit) {
     var _,
         /**
          * Indicates whether the syntactic code unit represents global code.
          * @type {boolean}
          */
         bIsGlobal = 'toplevel' === oSyntacticCodeUnit[0],
         /**
          * Indicates whether the whole scope is being examined.
          * @type {boolean}
          */
         bIsWhollyExaminable = !bIsGlobal,
         /**
          * An array-like object representing source elements that constitute a
          * syntactic code unit.
          * @type {!TSyntacticCodeUnit}
          */
         oSourceElements,
         /**
          * A record consisting of data about the source element that is
          * currently being examined.
          * @type {!TSourceElementsData}
          */
         oSourceElementData,
         /**
          * The scope of the syntactic code unit.
          * @type {!TScope}
          */
         oScope,
         /**
          * An instance of an object that allows the traversal of an <abbr
          * title="abstract syntax tree">AST</abbr>.
          * @type {!TWalker}
          */
         oWalker,
         /**
          * An object encompassing collections of functions used during the
          * traversal of an <abbr title="abstract syntax tree">AST</abbr>.
          * @namespace
          * @type {!Object.<string, !Object.<string, function(...[*])>>}
          */
         oWalkers = {
           /**
            * A collection of functions used during the surveyance of source
            * elements.
            * @namespace
            * @type {!Object.<string, function(...[*])>}
            */
           oSurveySourceElement: {
             /**#nocode+*/  // JsDoc Toolkit 2.4.0 hides some of the keys.
             /**
              * Classifies the source element as excludable if it does not
              * contain a {@code with} statement or the {@code eval} identifier
              * name. Adds the identifier of the function and its formal
              * parameters to the list of identifier names found.
              * @param {string} sIdentifier The identifier of the function.
              * @param {!Array.<string>} aFormalParameterList Formal parameters.
              * @param {!TSyntacticCodeUnit} oFunctionBody Function code.
              */
             'defun': function(
                 sIdentifier,
                 aFormalParameterList,
                 oFunctionBody) {
               fClassifyAsExcludable();
               fAddIdentifier(sIdentifier);
               aFormalParameterList.forEach(fAddIdentifier);
             },
             /**
              * Increments the count of the number of occurrences of the String
              * value that is equivalent to the sequence of terminal symbols
              * that constitute the encountered identifier name.
              * @param {!TSyntacticCodeUnit} oExpression The nonterminal
              *     MemberExpression.
              * @param {string} sIdentifierName The identifier name used as the
              *     property accessor.
              * @return {!Array} The encountered branch of an <abbr title=
              *     "abstract syntax tree">AST</abbr> with its nonterminal
              *     MemberExpression traversed.
              */
             'dot': function(oExpression, sIdentifierName) {
               fCountPrimaryExpression(
                   EPrimaryExpressionCategories.N_IDENTIFIER_NAMES,
                   EValuePrefixes.S_STRING + sIdentifierName);
               return ['dot', oWalker.walk(oExpression), sIdentifierName];
             },
             /**
              * Adds the optional identifier of the function and its formal
              * parameters to the list of identifier names found.
              * @param {?string} sIdentifier The optional identifier of the
              *     function.
              * @param {!Array.<string>} aFormalParameterList Formal parameters.
              * @param {!TSyntacticCodeUnit} oFunctionBody Function code.
              */
             'function': function(
                 sIdentifier,
                 aFormalParameterList,
                 oFunctionBody) {
               if ('string' === typeof sIdentifier) {
                 fAddIdentifier(sIdentifier);
               }
               aFormalParameterList.forEach(fAddIdentifier);
             },
             /**
              * Either increments the count of the number of occurrences of the
              * encountered null or Boolean value or classifies a source element
              * as containing the {@code eval} identifier name.
              * @param {string} sIdentifier The identifier encountered.
              */
             'name': function(sIdentifier) {
               if (-1 !== A_OTHER_SUBSTITUTABLE_LITERALS.indexOf(sIdentifier)) {
                 fCountPrimaryExpression(
                     EPrimaryExpressionCategories.N_NULL_AND_BOOLEAN_LITERALS,
                     EValuePrefixes.S_SYMBOLIC + sIdentifier);
               } else {
                 if ('eval' === sIdentifier) {
                   oSourceElementData.nCategory =
                       ESourceElementCategories.N_EVAL;
                 }
                 fAddIdentifier(sIdentifier);
               }
             },
             /**
              * Classifies the source element as excludable if it does not
              * contain a {@code with} statement or the {@code eval} identifier
              * name.
              * @param {TSyntacticCodeUnit} oExpression The expression whose
              *     value is to be returned.
              */
             'return': function(oExpression) {
               fClassifyAsExcludable();
             },
             /**
              * Increments the count of the number of occurrences of the
              * encountered String value.
              * @param {string} sStringValue The String value of the string
              *     literal encountered.
              */
             'string': function(sStringValue) {
               if (sStringValue.length > 0) {
                 fCountPrimaryExpression(
                     EPrimaryExpressionCategories.N_STRING_LITERALS,
                     EValuePrefixes.S_STRING + sStringValue);
               }
             },
             /**
              * Adds the identifier reserved for an exception to the list of
              * identifier names found.
              * @param {!TSyntacticCodeUnit} oTry A block of code in which an
              *     exception can occur.
              * @param {Array} aCatch The identifier reserved for an exception
              *     and a block of code to handle the exception.
              * @param {TSyntacticCodeUnit} oFinally An optional block of code
              *     to be evaluated regardless of whether an exception occurs.
              */
             'try': function(oTry, aCatch, oFinally) {
               if (Array.isArray(aCatch)) {
                 fAddIdentifier(aCatch[0]);
               }
             },
             /**
              * Classifies the source element as excludable if it does not
              * contain a {@code with} statement or the {@code eval} identifier
              * name. Adds the identifier of each declared variable to the list
              * of identifier names found.
              * @param {!Array.<!Array>} aVariableDeclarationList Variable
              *     declarations.
              */
             'var': function(aVariableDeclarationList) {
               fClassifyAsExcludable();
               aVariableDeclarationList.forEach(fAddVariable);
             },
             /**
              * Classifies a source element as containing the {@code with}
              * statement.
              * @param {!TSyntacticCodeUnit} oExpression An expression whose
              *     value is to be converted to a value of type Object and
              *     become the binding object of a new object environment
              *     record of a new lexical environment in which the statement
              *     is to be executed.
              * @param {!TSyntacticCodeUnit} oStatement The statement to be
              *     executed in the augmented lexical environment.
              * @return {!Array} An empty array to stop the traversal.
              */
             'with': function(oExpression, oStatement) {
               oSourceElementData.nCategory = ESourceElementCategories.N_WITH;
               return [];
             }
             /**#nocode-*/  // JsDoc Toolkit 2.4.0 hides some of the keys.
           },
           /**
            * A collection of functions used while looking for nested functions.
            * @namespace
            * @type {!Object.<string, function(...[*])>}
            */
           oExamineFunctions: {
             /**#nocode+*/  // JsDoc Toolkit 2.4.0 hides some of the keys.
             /**
              * Orders an examination of a nested function declaration.
              * @this {!TSyntacticCodeUnit} An array-like object representing
              *     the branch of an <abbr title="abstract syntax tree"
              *     >AST</abbr> representing the syntactic code unit along with
              *     its scope.
              * @return {!Array} An empty array to stop the traversal.
              */
             'defun': function() {
               fExamineSyntacticCodeUnit(this);
               return [];
             },
             /**
              * Orders an examination of a nested function expression.
              * @this {!TSyntacticCodeUnit} An array-like object representing
              *     the branch of an <abbr title="abstract syntax tree"
              *     >AST</abbr> representing the syntactic code unit along with
              *     its scope.
              * @return {!Array} An empty array to stop the traversal.
              */
             'function': function() {
               fExamineSyntacticCodeUnit(this);
               return [];
             }
             /**#nocode-*/  // JsDoc Toolkit 2.4.0 hides some of the keys.
           }
         },
         /**
          * Records containing data about source elements.
          * @type {Array.<TSourceElementsData>}
          */
         aSourceElementsData = [],
         /**
          * The index (in the source text order) of the source element
          * immediately following a <a href="http://es5.github.com/#x14.1"
          * >Directive Prologue</a>.
          * @type {number}
          */
         nAfterDirectivePrologue = 0,
         /**
          * The index (in the source text order) of the source element that is
          * currently being considered.
          * @type {number}
          */
         nPosition,
         /**
          * The index (in the source text order) of the source element that is
          * the last element of the range of source elements that is currently
          * being considered.
          * @type {(undefined|number)}
          */
         nTo,
         /**
          * Initiates the traversal of a source element.
          * @param {!TWalker} oWalker An instance of an object that allows the
          *     traversal of an abstract syntax tree.
          * @param {!TSyntacticCodeUnit} oSourceElement A source element from
          *     which the traversal should commence.
          * @return {function(): !TSyntacticCodeUnit} A function that is able to
          *     initiate the traversal from a given source element.
          */
         cContext = function(oWalker, oSourceElement) {
           /**
            * @return {!TSyntacticCodeUnit} A function that is able to
            *     initiate the traversal from a given source element.
            */
           var fLambda = function() {
             return oWalker.walk(oSourceElement);
           };

           return fLambda;
         },
         /**
          * Classifies the source element as excludable if it does not
          * contain a {@code with} statement or the {@code eval} identifier
          * name.
          */
         fClassifyAsExcludable = function() {
           if (oSourceElementData.nCategory ===
               ESourceElementCategories.N_OTHER) {
             oSourceElementData.nCategory =
                 ESourceElementCategories.N_EXCLUDABLE;
           }
         },
         /**
          * Adds an identifier to the list of identifier names found.
          * @param {string} sIdentifier The identifier to be added.
          */
         fAddIdentifier = function(sIdentifier) {
           if (-1 === oSourceElementData.aIdentifiers.indexOf(sIdentifier)) {
             oSourceElementData.aIdentifiers.push(sIdentifier);
           }
         },
         /**
          * Adds the identifier of a variable to the list of identifier names
          * found.
          * @param {!Array} aVariableDeclaration A variable declaration.
          */
         fAddVariable = function(aVariableDeclaration) {
           fAddIdentifier(/** @type {string} */ aVariableDeclaration[0]);
         },
         /**
          * Increments the count of the number of occurrences of the prefixed
          * String representation attributed to the primary expression.
          * @param {number} nCategory The category of the primary expression.
          * @param {string} sName The prefixed String representation attributed
          *     to the primary expression.
          */
         fCountPrimaryExpression = function(nCategory, sName) {
           if (!oSourceElementData.aCount[nCategory].hasOwnProperty(sName)) {
             oSourceElementData.aCount[nCategory][sName] = 0;
             if (-1 === oSourceElementData.aPrimitiveValues.indexOf(sName)) {
               oSourceElementData.aPrimitiveValues.push(sName);
             }
           }
           oSourceElementData.aCount[nCategory][sName] += 1;
         },
         /**
          * Consolidates all worthwhile primitive values in a range of source
          *     elements.
          * @param {number} nFrom The index (in the source text order) of the
          *     source element that is the first element of the range.
          * @param {number} nTo The index (in the source text order) of the
          *     source element that is the last element of the range.
          * @param {boolean} bEnclose Indicates whether the range should be
          *     enclosed within a function call with no argument values to a
          *     function with an empty parameter list if any primitive values
          *     are consolidated.
          * @see TPrimitiveValue#nSaving
          */
         fExamineSourceElements = function(nFrom, nTo, bEnclose) {
           var _,
               /**
                * The index of the last mangled name.
                * @type {number}
                */
               nIndex = oScope.cname,
               /**
                * The index of the source element that is currently being
                * considered.
                * @type {number}
                */
               nPosition,
               /**
                * A collection of functions used during the consolidation of
                * primitive values and identifier names used as property
                * accessors.
                * @namespace
                * @type {!Object.<string, function(...[*])>}
                */
               oWalkersTransformers = {
                 /**
                  * If the String value that is equivalent to the sequence of
                  * terminal symbols that constitute the encountered identifier
                  * name is worthwhile, a syntactic conversion from the dot
                  * notation to the bracket notation ensues with that sequence
                  * being substituted by an identifier name to which the value
                  * is assigned.
                  * Applies to property accessors that use the dot notation.
                  * @param {!TSyntacticCodeUnit} oExpression The nonterminal
                  *     MemberExpression.
                  * @param {string} sIdentifierName The identifier name used as
                  *     the property accessor.
                  * @return {!Array} A syntactic code unit that is equivalent to
                  *     the one encountered.
                  * @see TPrimitiveValue#nSaving
                  */
                 'dot': function(oExpression, sIdentifierName) {
                   /**
                    * The prefixed String value that is equivalent to the
                    * sequence of terminal symbols that constitute the
                    * encountered identifier name.
                    * @type {string}
                    */
                   var sPrefixed = EValuePrefixes.S_STRING + sIdentifierName;

                   return oSolutionBest.oPrimitiveValues.hasOwnProperty(
                       sPrefixed) &&
                       oSolutionBest.oPrimitiveValues[sPrefixed].nSaving > 0 ?
                       ['sub',
                        oWalker.walk(oExpression),
                        ['name',
                         oSolutionBest.oPrimitiveValues[sPrefixed].sName]] :
                       ['dot', oWalker.walk(oExpression), sIdentifierName];
                 },
                 /**
                  * If the encountered identifier is a null or Boolean literal
                  * and its value is worthwhile, the identifier is substituted
                  * by an identifier name to which that value is assigned.
                  * Applies to identifier names.
                  * @param {string} sIdentifier The identifier encountered.
                  * @return {!Array} A syntactic code unit that is equivalent to
                  *     the one encountered.
                  * @see TPrimitiveValue#nSaving
                  */
                 'name': function(sIdentifier) {
                   /**
                    * The prefixed representation String of the identifier.
                    * @type {string}
                    */
                   var sPrefixed = EValuePrefixes.S_SYMBOLIC + sIdentifier;

                   return [
                     'name',
                     oSolutionBest.oPrimitiveValues.hasOwnProperty(sPrefixed) &&
                     oSolutionBest.oPrimitiveValues[sPrefixed].nSaving > 0 ?
                     oSolutionBest.oPrimitiveValues[sPrefixed].sName :
                     sIdentifier
                   ];
                 },
                 /**
                  * If the encountered String value is worthwhile, it is
                  * substituted by an identifier name to which that value is
                  * assigned.
                  * Applies to String values.
                  * @param {string} sStringValue The String value of the string
                  *     literal encountered.
                  * @return {!Array} A syntactic code unit that is equivalent to
                  *     the one encountered.
                  * @see TPrimitiveValue#nSaving
                  */
                 'string': function(sStringValue) {
                   /**
                    * The prefixed representation String of the primitive value
                    * of the literal.
                    * @type {string}
                    */
                   var sPrefixed =
                       EValuePrefixes.S_STRING + sStringValue;

                   return oSolutionBest.oPrimitiveValues.hasOwnProperty(
                       sPrefixed) &&
                       oSolutionBest.oPrimitiveValues[sPrefixed].nSaving > 0 ?
                       ['name',
                        oSolutionBest.oPrimitiveValues[sPrefixed].sName] :
                       ['string', sStringValue];
                 }
               },
               /**
                * Such data on what to consolidate within the range of source
                * elements that is currently being considered that lead to the
                * greatest known reduction of the number of the terminal symbols
                * in comparison to the original source text.
                * @type {!TSolution}
                */
               oSolutionBest = new TSolution(),
               /**
                * Data representing an ongoing attempt to find a better
                * reduction of the number of the terminal symbols in comparison
                * to the original source text than the best one that is
                * currently known.
                * @type {!TSolution}
                * @see oSolutionBest
                */
               oSolutionCandidate = new TSolution(),
               /**
                * A record consisting of data about the range of source elements
                * that is currently being examined.
                * @type {!TSourceElementsData}
                */
               oSourceElementsData = new TSourceElementsData(),
               /**
                * Variable declarations for each primitive value that is to be
                * consolidated within the elements.
                * @type {!Array.<!Array>}
                */
               aVariableDeclarations = [],
               /**
                * Augments a list with a prefixed representation String.
                * @param {!Array.<string>} aList A list that is to be augmented.
                * @return {function(string)} A function that augments a list
                *     with a prefixed representation String.
                */
               cAugmentList = function(aList) {
                 /**
                  * @param {string} sPrefixed Prefixed representation String of
                  *     a primitive value that could be consolidated within the
                  *     elements.
                  */
                 var fLambda = function(sPrefixed) {
                   if (-1 === aList.indexOf(sPrefixed)) {
                     aList.push(sPrefixed);
                   }
                 };

                 return fLambda;
               },
               /**
                * Adds the number of occurrences of a primitive value of a given
                * category that could be consolidated in the source element with
                * a given index to the count of occurrences of that primitive
                * value within the range of source elements that is currently
                * being considered.
                * @param {number} nPosition The index (in the source text order)
                *     of a source element.
                * @param {number} nCategory The category of the primary
                *     expression from which the primitive value is derived.
                * @return {function(string)} A function that performs the
                *     addition.
                * @see cAddOccurrencesInCategory
                */
               cAddOccurrences = function(nPosition, nCategory) {
                 /**
                  * @param {string} sPrefixed The prefixed representation String
                  *     of a primitive value.
                  */
                 var fLambda = function(sPrefixed) {
                   if (!oSourceElementsData.aCount[nCategory].hasOwnProperty(
                           sPrefixed)) {
                     oSourceElementsData.aCount[nCategory][sPrefixed] = 0;
                   }
                   oSourceElementsData.aCount[nCategory][sPrefixed] +=
                       aSourceElementsData[nPosition].aCount[nCategory][
                           sPrefixed];
                 };

                 return fLambda;
               },
               /**
                * Adds the number of occurrences of each primitive value of a
                * given category that could be consolidated in the source
                * element with a given index to the count of occurrences of that
                * primitive values within the range of source elements that is
                * currently being considered.
                * @param {number} nPosition The index (in the source text order)
                *     of a source element.
                * @return {function(number)} A function that performs the
                *     addition.
                * @see fAddOccurrences
                */
               cAddOccurrencesInCategory = function(nPosition) {
                 /**
                  * @param {number} nCategory The category of the primary
                  *     expression from which the primitive value is derived.
                  */
                 var fLambda = function(nCategory) {
                   Object.keys(
                       aSourceElementsData[nPosition].aCount[nCategory]
                   ).forEach(cAddOccurrences(nPosition, nCategory));
                 };

                 return fLambda;
               },
               /**
                * Adds the number of occurrences of each primitive value that
                * could be consolidated in the source element with a given index
                * to the count of occurrences of that primitive values within
                * the range of source elements that is currently being
                * considered.
                * @param {number} nPosition The index (in the source text order)
                *     of a source element.
                */
               fAddOccurrences = function(nPosition) {
                 Object.keys(aSourceElementsData[nPosition].aCount).forEach(
                     cAddOccurrencesInCategory(nPosition));
               },
               /**
                * Creates a variable declaration for a primitive value if that
                * primitive value is to be consolidated within the elements.
                * @param {string} sPrefixed Prefixed representation String of a
                *     primitive value that could be consolidated within the
                *     elements.
                * @see aVariableDeclarations
                */
               cAugmentVariableDeclarations = function(sPrefixed) {
                 if (oSolutionBest.oPrimitiveValues[sPrefixed].nSaving > 0) {
                   aVariableDeclarations.push([
                     oSolutionBest.oPrimitiveValues[sPrefixed].sName,
                     [0 === sPrefixed.indexOf(EValuePrefixes.S_SYMBOLIC) ?
                      'name' : 'string',
                      sPrefixed.substring(EValuePrefixes.S_SYMBOLIC.length)]
                   ]);
                 }
               },
               /**
                * Sorts primitive values with regard to the difference in the
                * number of terminal symbols between the original source text
                * and the one with those primitive values consolidated.
                * @param {string} sPrefixed0 The prefixed representation String
                *     of the first of the two primitive values that are being
                *     compared.
                * @param {string} sPrefixed1 The prefixed representation String
                *     of the second of the two primitive values that are being
                *     compared.
                * @return {number}
                *     <dl>
                *         <dt>-1</dt>
                *         <dd>if the first primitive value must be placed before
                *              the other one,</dd>
                *         <dt>0</dt>
                *         <dd>if the first primitive value may be placed before
                *              the other one,</dd>
                *         <dt>1</dt>
                *         <dd>if the first primitive value must not be placed
                *              before the other one.</dd>
                *     </dl>
                * @see TSolution.oPrimitiveValues
                */
               cSortPrimitiveValues = function(sPrefixed0, sPrefixed1) {
                 /**
                  * The difference between:
                  * <ol>
                  * <li>the difference in the number of terminal symbols
                  *     between the original source text and the one with the
                  *     first primitive value consolidated, and</li>
                  * <li>the difference in the number of terminal symbols
                  *     between the original source text and the one with the
                  *     second primitive value consolidated.</li>
                  * </ol>
                  * @type {number}
                  */
                 var nDifference =
                     oSolutionCandidate.oPrimitiveValues[sPrefixed0].nSaving -
                     oSolutionCandidate.oPrimitiveValues[sPrefixed1].nSaving;

                 return nDifference > 0 ? -1 : nDifference < 0 ? 1 : 0;
               },
               /**
                * Assigns an identifier name to a primitive value and calculates
                * whether instances of that primitive value are worth
                * consolidating.
                * @param {string} sPrefixed The prefixed representation String
                *     of a primitive value that is being evaluated.
                */
               fEvaluatePrimitiveValue = function(sPrefixed) {
                 var _,
                     /**
                      * The index of the last mangled name.
                      * @type {number}
                      */
                     nIndex,
                     /**
                      * The representation String of the primitive value that is
                      * being evaluated.
                      * @type {string}
                      */
                     sName =
                         sPrefixed.substring(EValuePrefixes.S_SYMBOLIC.length),
                     /**
                      * The number of source characters taken up by the
                      * representation String of the primitive value that is
                      * being evaluated.
                      * @type {number}
                      */
                     nLengthOriginal = sName.length,
                     /**
                      * The number of source characters taken up by the
                      * identifier name that could substitute the primitive
                      * value that is being evaluated.
                      * substituted.
                      * @type {number}
                      */
                     nLengthSubstitution,
                     /**
                      * The number of source characters taken up by by the
                      * representation String of the primitive value that is
                      * being evaluated when it is represented by a string
                      * literal.
                      * @type {number}
                      */
                     nLengthString = oProcessor.make_string(sName).length;

                 oSolutionCandidate.oPrimitiveValues[sPrefixed] =
                     new TPrimitiveValue();
                 do {  // Find an identifier unused in this or any nested scope.
                   nIndex = oScope.cname;
                   oSolutionCandidate.oPrimitiveValues[sPrefixed].sName =
                       oScope.next_mangled();
                 } while (-1 !== oSourceElementsData.aIdentifiers.indexOf(
                     oSolutionCandidate.oPrimitiveValues[sPrefixed].sName));
                 nLengthSubstitution = oSolutionCandidate.oPrimitiveValues[
                     sPrefixed].sName.length;
                 if (0 === sPrefixed.indexOf(EValuePrefixes.S_SYMBOLIC)) {
                   // foo:null, or foo:null;
                   oSolutionCandidate.oPrimitiveValues[sPrefixed].nSaving -=
                       nLengthSubstitution + nLengthOriginal +
                       oWeights.N_VARIABLE_DECLARATION;
                   // null vs foo
                   oSolutionCandidate.oPrimitiveValues[sPrefixed].nSaving +=
                       oSourceElementsData.aCount[
                           EPrimaryExpressionCategories.
                               N_NULL_AND_BOOLEAN_LITERALS][sPrefixed] *
                       (nLengthOriginal - nLengthSubstitution);
                 } else {
                   // foo:'fromCharCode';
                   oSolutionCandidate.oPrimitiveValues[sPrefixed].nSaving -=
                       nLengthSubstitution + nLengthString +
                       oWeights.N_VARIABLE_DECLARATION;
                   // .fromCharCode vs [foo]
                   if (oSourceElementsData.aCount[
                           EPrimaryExpressionCategories.N_IDENTIFIER_NAMES
                       ].hasOwnProperty(sPrefixed)) {
                     oSolutionCandidate.oPrimitiveValues[sPrefixed].nSaving +=
                         oSourceElementsData.aCount[
                             EPrimaryExpressionCategories.N_IDENTIFIER_NAMES
                         ][sPrefixed] *
                         (nLengthOriginal - nLengthSubstitution -
                          oWeights.N_PROPERTY_ACCESSOR);
                   }
                   // 'fromCharCode' vs foo
                   if (oSourceElementsData.aCount[
                           EPrimaryExpressionCategories.N_STRING_LITERALS
                       ].hasOwnProperty(sPrefixed)) {
                     oSolutionCandidate.oPrimitiveValues[sPrefixed].nSaving +=
                         oSourceElementsData.aCount[
                             EPrimaryExpressionCategories.N_STRING_LITERALS
                         ][sPrefixed] *
                         (nLengthString - nLengthSubstitution);
                   }
                 }
                 if (oSolutionCandidate.oPrimitiveValues[sPrefixed].nSaving >
                     0) {
                   oSolutionCandidate.nSavings +=
                       oSolutionCandidate.oPrimitiveValues[sPrefixed].nSaving;
                 } else {
                   oScope.cname = nIndex; // Free the identifier name.
                 }
               },
               /**
                * Adds a variable declaration to an existing variable statement.
                * @param {!Array} aVariableDeclaration A variable declaration
                *     with an initialiser.
                */
               cAddVariableDeclaration = function(aVariableDeclaration) {
                 (/** @type {!Array} */ oSourceElements[nFrom][1]).unshift(
                     aVariableDeclaration);
               };

           if (nFrom > nTo) {
             return;
           }
           // If the range is a closure, reuse the closure.
           if (nFrom === nTo &&
               'stat' === oSourceElements[nFrom][0] &&
               'call' === oSourceElements[nFrom][1][0] &&
               'function' === oSourceElements[nFrom][1][1][0]) {
             fExamineSyntacticCodeUnit(oSourceElements[nFrom][1][1]);
             return;
           }
           // Create a list of all derived primitive values within the range.
           for (nPosition = nFrom; nPosition <= nTo; nPosition += 1) {
             aSourceElementsData[nPosition].aPrimitiveValues.forEach(
                 cAugmentList(oSourceElementsData.aPrimitiveValues));
           }
           if (0 === oSourceElementsData.aPrimitiveValues.length) {
             return;
           }
           for (nPosition = nFrom; nPosition <= nTo; nPosition += 1) {
             // Add the number of occurrences to the total count.
             fAddOccurrences(nPosition);
             // Add identifiers of this or any nested scope to the list.
             aSourceElementsData[nPosition].aIdentifiers.forEach(
                 cAugmentList(oSourceElementsData.aIdentifiers));
           }
           // Distribute identifier names among derived primitive values.
           do {  // If there was any progress, find a better distribution.
             oSolutionBest = oSolutionCandidate;
             if (Object.keys(oSolutionCandidate.oPrimitiveValues).length > 0) {
               // Sort primitive values descending by their worthwhileness.
               oSourceElementsData.aPrimitiveValues.sort(cSortPrimitiveValues);
             }
             oSolutionCandidate = new TSolution();
             oSourceElementsData.aPrimitiveValues.forEach(
                 fEvaluatePrimitiveValue);
             oScope.cname = nIndex;
           } while (oSolutionCandidate.nSavings > oSolutionBest.nSavings);
           // Take the necessity of adding a variable statement into account.
           if ('var' !== oSourceElements[nFrom][0]) {
             oSolutionBest.nSavings -= oWeights.N_VARIABLE_STATEMENT_AFFIXATION;
           }
           if (bEnclose) {
             // Take the necessity of forming a closure into account.
             oSolutionBest.nSavings -= oWeights.N_CLOSURE;
           }
           if (oSolutionBest.nSavings > 0) {
             // Create variable declarations suitable for UglifyJS.
             Object.keys(oSolutionBest.oPrimitiveValues).forEach(
                 cAugmentVariableDeclarations);
             // Rewrite expressions that contain worthwhile primitive values.
             for (nPosition = nFrom; nPosition <= nTo; nPosition += 1) {
               oWalker = oProcessor.ast_walker();
               oSourceElements[nPosition] =
                   oWalker.with_walkers(
                       oWalkersTransformers,
                       cContext(oWalker, oSourceElements[nPosition]));
             }
             if ('var' === oSourceElements[nFrom][0]) {  // Reuse the statement.
               (/** @type {!Array.<!Array>} */ aVariableDeclarations.reverse(
                   )).forEach(cAddVariableDeclaration);
             } else {  // Add a variable statement.
               Array.prototype.splice.call(
                   oSourceElements,
                   nFrom,
                   0,
                   ['var', aVariableDeclarations]);
               nTo += 1;
             }
             if (bEnclose) {
               // Add a closure.
               Array.prototype.splice.call(
                   oSourceElements,
                   nFrom,
                   0,
                   ['stat', ['call', ['function', null, [], []], []]]);
               // Copy source elements into the closure.
               for (nPosition = nTo + 1; nPosition > nFrom; nPosition -= 1) {
                 Array.prototype.unshift.call(
                     oSourceElements[nFrom][1][1][3],
                     oSourceElements[nPosition]);
               }
               // Remove source elements outside the closure.
               Array.prototype.splice.call(
                   oSourceElements,
                   nFrom + 1,
                   nTo - nFrom + 1);
             }
           }
           if (bEnclose) {
             // Restore the availability of identifier names.
             oScope.cname = nIndex;
           }
         };

     oSourceElements = (/** @type {!TSyntacticCodeUnit} */
         oSyntacticCodeUnit[bIsGlobal ? 1 : 3]);
     if (0 === oSourceElements.length) {
       return;
     }
     oScope = bIsGlobal ? oSyntacticCodeUnit.scope : oSourceElements.scope;
     // Skip a Directive Prologue.
     while (nAfterDirectivePrologue < oSourceElements.length &&
            'stat' === oSourceElements[nAfterDirectivePrologue][0] &&
            'string' === oSourceElements[nAfterDirectivePrologue][1][0]) {
       nAfterDirectivePrologue += 1;
       aSourceElementsData.push(null);
     }
     if (oSourceElements.length === nAfterDirectivePrologue) {
       return;
     }
     for (nPosition = nAfterDirectivePrologue;
          nPosition < oSourceElements.length;
          nPosition += 1) {
       oSourceElementData = new TSourceElementsData();
       oWalker = oProcessor.ast_walker();
       // Classify a source element.
       // Find its derived primitive values and count their occurrences.
       // Find all identifiers used (including nested scopes).
       oWalker.with_walkers(
           oWalkers.oSurveySourceElement,
           cContext(oWalker, oSourceElements[nPosition]));
       // Establish whether the scope is still wholly examinable.
       bIsWhollyExaminable = bIsWhollyExaminable &&
           ESourceElementCategories.N_WITH !== oSourceElementData.nCategory &&
           ESourceElementCategories.N_EVAL !== oSourceElementData.nCategory;
       aSourceElementsData.push(oSourceElementData);
     }
     if (bIsWhollyExaminable) {  // Examine the whole scope.
       fExamineSourceElements(
           nAfterDirectivePrologue,
           oSourceElements.length - 1,
           false);
     } else {  // Examine unexcluded ranges of source elements.
       for (nPosition = oSourceElements.length - 1;
            nPosition >= nAfterDirectivePrologue;
            nPosition -= 1) {
         oSourceElementData = (/** @type {!TSourceElementsData} */
             aSourceElementsData[nPosition]);
         if (ESourceElementCategories.N_OTHER ===
             oSourceElementData.nCategory) {
           if ('undefined' === typeof nTo) {
             nTo = nPosition;  // Indicate the end of a range.
           }
           // Examine the range if it immediately follows a Directive Prologue.
           if (nPosition === nAfterDirectivePrologue) {
             fExamineSourceElements(nPosition, nTo, true);
           }
         } else {
           if ('undefined' !== typeof nTo) {
             // Examine the range that immediately follows this source element.
             fExamineSourceElements(nPosition + 1, nTo, true);
             nTo = void 0;  // Obliterate the range.
           }
           // Examine nested functions.
           oWalker = oProcessor.ast_walker();
           oWalker.with_walkers(
               oWalkers.oExamineFunctions,
               cContext(oWalker, oSourceElements[nPosition]));
         }
       }
     }
   }(oAbstractSyntaxTree = oProcessor.ast_add_scope(oAbstractSyntaxTree)));
  return oAbstractSyntaxTree;
};
/*jshint sub:false */


if (require.main === module) {
  (function() {
    'use strict';
    /*jshint bitwise:true, curly:true, eqeqeq:true, forin:true, immed:true,
         latedef:true, newcap:true, noarge:true, noempty:true, nonew:true,
         onevar:true, plusplus:true, regexp:true, undef:true, strict:true,
         sub:false, trailing:true */

    var _,
        /**
         * NodeJS module for unit testing.
         * @namespace
         * @type {!TAssert}
         * @see http://nodejs.org/docs/v0.6.10/api/all.html#assert
         */
        oAssert = (/** @type {!TAssert} */ require('env!env/assert')),
        /**
         * The parser of ECMA-262 found in UglifyJS.
         * @namespace
         * @type {!TParser}
         */
        oParser = (/** @type {!TParser} */ require('./parse-js')),
        /**
         * The processor of <abbr title="abstract syntax tree">AST</abbr>s
         * found in UglifyJS.
         * @namespace
         * @type {!TProcessor}
         */
        oProcessor = (/** @type {!TProcessor} */ require('./process')),
        /**
         * An instance of an object that allows the traversal of an <abbr
         * title="abstract syntax tree">AST</abbr>.
         * @type {!TWalker}
         */
        oWalker,
        /**
         * A collection of functions for the removal of the scope information
         * during the traversal of an <abbr title="abstract syntax tree"
         * >AST</abbr>.
         * @namespace
         * @type {!Object.<string, function(...[*])>}
         */
        oWalkersPurifiers = {
          /**#nocode+*/  // JsDoc Toolkit 2.4.0 hides some of the keys.
          /**
           * Deletes the scope information from the branch of the abstract
           * syntax tree representing the encountered function declaration.
           * @param {string} sIdentifier The identifier of the function.
           * @param {!Array.<string>} aFormalParameterList Formal parameters.
           * @param {!TSyntacticCodeUnit} oFunctionBody Function code.
           */
          'defun': function(
              sIdentifier,
              aFormalParameterList,
              oFunctionBody) {
            delete oFunctionBody.scope;
          },
          /**
           * Deletes the scope information from the branch of the abstract
           * syntax tree representing the encountered function expression.
           * @param {?string} sIdentifier The optional identifier of the
           *     function.
           * @param {!Array.<string>} aFormalParameterList Formal parameters.
           * @param {!TSyntacticCodeUnit} oFunctionBody Function code.
           */
          'function': function(
              sIdentifier,
              aFormalParameterList,
              oFunctionBody) {
            delete oFunctionBody.scope;
          }
          /**#nocode-*/  // JsDoc Toolkit 2.4.0 hides some of the keys.
        },
        /**
         * Initiates the traversal of a source element.
         * @param {!TWalker} oWalker An instance of an object that allows the
         *     traversal of an abstract syntax tree.
         * @param {!TSyntacticCodeUnit} oSourceElement A source element from
         *     which the traversal should commence.
         * @return {function(): !TSyntacticCodeUnit} A function that is able to
         *     initiate the traversal from a given source element.
         */
        cContext = function(oWalker, oSourceElement) {
          /**
           * @return {!TSyntacticCodeUnit} A function that is able to
           *     initiate the traversal from a given source element.
           */
          var fLambda = function() {
            return oWalker.walk(oSourceElement);
          };

          return fLambda;
        },
        /**
         * A record consisting of configuration for the code generation phase.
         * @type {!Object}
         */
        oCodeGenerationOptions = {
          beautify: true
        },
        /**
         * Tests whether consolidation of an ECMAScript program yields expected
         * results.
         * @param {{
         *       sTitle: string,
         *       sInput: string,
         *       sOutput: string
         *     }} oUnitTest A record consisting of data about a unit test: its
         *     name, an ECMAScript program, and, if consolidation is to take
         *     place, the resulting ECMAScript program.
         */
        cAssert = function(oUnitTest) {
          var _,
              /**
               * An array-like object representing the <abbr title=
               * "abstract syntax tree">AST</abbr> obtained after consolidation.
               * @type {!TSyntacticCodeUnit}
               */
              oSyntacticCodeUnitActual =
                  exports.ast_consolidate(oParser.parse(oUnitTest.sInput)),
              /**
               * An array-like object representing the expected <abbr title=
               * "abstract syntax tree">AST</abbr>.
               * @type {!TSyntacticCodeUnit}
               */
              oSyntacticCodeUnitExpected = oParser.parse(
                  oUnitTest.hasOwnProperty('sOutput') ?
                  oUnitTest.sOutput : oUnitTest.sInput);

          delete oSyntacticCodeUnitActual.scope;
          oWalker = oProcessor.ast_walker();
          oWalker.with_walkers(
              oWalkersPurifiers,
              cContext(oWalker, oSyntacticCodeUnitActual));
          try {
            oAssert.deepEqual(
                oSyntacticCodeUnitActual,
                oSyntacticCodeUnitExpected);
          } catch (oException) {
            console.error(
                '########## A unit test has failed.\n' +
                oUnitTest.sTitle + '\n' +
                '#####  actual code  (' +
                oProcessor.gen_code(oSyntacticCodeUnitActual).length +
                ' bytes)\n' +
                oProcessor.gen_code(
                    oSyntacticCodeUnitActual,
                    oCodeGenerationOptions) + '\n' +
                '##### expected code (' +
                oProcessor.gen_code(oSyntacticCodeUnitExpected).length +
                ' bytes)\n' +
                oProcessor.gen_code(
                    oSyntacticCodeUnitExpected,
                    oCodeGenerationOptions));
          }
        };

    [
      // 7.6.1 Reserved Words.
      {
        sTitle:
            'Omission of keywords while choosing an identifier name.',
        sInput:
            '(function() {' +
            '  var a, b, c, d, e, f, g, h, i, j, k, l, m,' +
            '      n, o, p, q, r, s, t, u, v, w, x, y, z,' +
            '      A, B, C, D, E, F, G, H, I, J, K, L, M,' +
            '      N, O, P, Q, R, S, T, U, V, W, X, Y, Z,' +
            '      $, _,' +
            '      aa, ab, ac, ad, ae, af, ag, ah, ai, aj, ak, al, am,' +
            '      an, ao, ap, aq, ar, as, at, au, av, aw, ax, ay, az,' +
            '      aA, aB, aC, aD, aE, aF, aG, aH, aI, aJ, aK, aL, aM,' +
            '      aN, aO, aP, aQ, aR, aS, aT, aU, aV, aW, aX, aY, aZ,' +
            '      a$, a_,' +
            '      ba, bb, bc, bd, be, bf, bg, bh, bi, bj, bk, bl, bm,' +
            '      bn, bo, bp, bq, br, bs, bt, bu, bv, bw, bx, by, bz,' +
            '      bA, bB, bC, bD, bE, bF, bG, bH, bI, bJ, bK, bL, bM,' +
            '      bN, bO, bP, bQ, bR, bS, bT, bU, bV, bW, bX, bY, bZ,' +
            '      b$, b_,' +
            '      ca, cb, cc, cd, ce, cf, cg, ch, ci, cj, ck, cl, cm,' +
            '      cn, co, cp, cq, cr, cs, ct, cu, cv, cw, cx, cy, cz,' +
            '      cA, cB, cC, cD, cE, cF, cG, cH, cI, cJ, cK, cL, cM,' +
            '      cN, cO, cP, cQ, cR, cS, cT, cU, cV, cW, cX, cY, cZ,' +
            '      c$, c_,' +
            '      da, db, dc, dd, de, df, dg, dh, di, dj, dk, dl, dm,' +
            '      dn, dq, dr, ds, dt, du, dv, dw, dx, dy, dz,' +
            '      dA, dB, dC, dD, dE, dF, dG, dH, dI, dJ, dK, dL, dM,' +
            '      dN, dO, dP, dQ, dR, dS, dT, dU, dV, dW, dX, dY, dZ,' +
            '      d$, d_;' +
            '  void ["abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",' +
            '        "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"];' +
            '}());',
        sOutput:
            '(function() {' +
            '  var dp =' +
            '      "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",' +
            '      a, b, c, d, e, f, g, h, i, j, k, l, m,' +
            '      n, o, p, q, r, s, t, u, v, w, x, y, z,' +
            '      A, B, C, D, E, F, G, H, I, J, K, L, M,' +
            '      N, O, P, Q, R, S, T, U, V, W, X, Y, Z,' +
            '      $, _,' +
            '      aa, ab, ac, ad, ae, af, ag, ah, ai, aj, ak, al, am,' +
            '      an, ao, ap, aq, ar, as, at, au, av, aw, ax, ay, az,' +
            '      aA, aB, aC, aD, aE, aF, aG, aH, aI, aJ, aK, aL, aM,' +
            '      aN, aO, aP, aQ, aR, aS, aT, aU, aV, aW, aX, aY, aZ,' +
            '      a$, a_,' +
            '      ba, bb, bc, bd, be, bf, bg, bh, bi, bj, bk, bl, bm,' +
            '      bn, bo, bp, bq, br, bs, bt, bu, bv, bw, bx, by, bz,' +
            '      bA, bB, bC, bD, bE, bF, bG, bH, bI, bJ, bK, bL, bM,' +
            '      bN, bO, bP, bQ, bR, bS, bT, bU, bV, bW, bX, bY, bZ,' +
            '      b$, b_,' +
            '      ca, cb, cc, cd, ce, cf, cg, ch, ci, cj, ck, cl, cm,' +
            '      cn, co, cp, cq, cr, cs, ct, cu, cv, cw, cx, cy, cz,' +
            '      cA, cB, cC, cD, cE, cF, cG, cH, cI, cJ, cK, cL, cM,' +
            '      cN, cO, cP, cQ, cR, cS, cT, cU, cV, cW, cX, cY, cZ,' +
            '      c$, c_,' +
            '      da, db, dc, dd, de, df, dg, dh, di, dj, dk, dl, dm,' +
            '      dn, dq, dr, ds, dt, du, dv, dw, dx, dy, dz,' +
            '      dA, dB, dC, dD, dE, dF, dG, dH, dI, dJ, dK, dL, dM,' +
            '      dN, dO, dP, dQ, dR, dS, dT, dU, dV, dW, dX, dY, dZ,' +
            '      d$, d_;' +
            '  void [dp, dp];' +
            '}());'
      },
      // 7.8.1 Null Literals.
      {
        sTitle:
            'Evaluation with regard to the null value.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  var foo;' +
            '  void [null, null, null];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  var foo;' +
            '  void [null, null];' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  var a = null, foo;' +
            '  void [a, a, a];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  var foo;' +
            '  void [null, null];' +
            '}());'
      },
      // 7.8.2 Boolean Literals.
      {
        sTitle:
            'Evaluation with regard to the false value.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  var foo;' +
            '  void [false, false, false];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  var foo;' +
            '  void [false, false];' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  var a = false, foo;' +
            '  void [a, a, a];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  var foo;' +
            '  void [false, false];' +
            '}());'
      },
      {
        sTitle:
            'Evaluation with regard to the true value.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  var foo;' +
            '  void [true, true, true];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  var foo;' +
            '  void [true, true];' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  var a = true, foo;' +
            '  void [a, a, a];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  var foo;' +
            '  void [true, true];' +
            '}());'
      },
      // 7.8.4 String Literals.
      {
        sTitle:
            'Evaluation with regard to the String value of a string literal.',
        sInput:
            '(function() {' +
            '  var foo;' +
            '  void ["abcd", "abcd", "abc", "abc"];' +
            '}());',
        sOutput:
            '(function() {' +
            '  var a = "abcd", foo;' +
            '  void [a, a, "abc", "abc"];' +
            '}());'
      },
      // 7.8.5 Regular Expression Literals.
      {
        sTitle:
            'Preservation of the pattern of a regular expression literal.',
        sInput:
            'void [/abcdefghijklmnopqrstuvwxyz/, /abcdefghijklmnopqrstuvwxyz/];'
      },
      {
        sTitle:
            'Preservation of the flags of a regular expression literal.',
        sInput:
            'void [/(?:)/gim, /(?:)/gim, /(?:)/gim, /(?:)/gim, /(?:)/gim,' +
            '      /(?:)/gim, /(?:)/gim, /(?:)/gim, /(?:)/gim, /(?:)/gim,' +
            '      /(?:)/gim, /(?:)/gim, /(?:)/gim, /(?:)/gim, /(?:)/gim];'
      },
      // 10.2 Lexical Environments.
      {
        sTitle:
            'Preservation of identifier names in the same scope.',
        sInput:
            '/*jshint shadow:true */' +
            'var a;' +
            'function b(i) {' +
            '}' +
            'for (var c; 0 === Math.random(););' +
            'for (var d in {});' +
            'void ["abcdefghijklmnopqrstuvwxyz"];' +
            'void [b(a), b(c), b(d)];' +
            'void [typeof e];' +
            'i: for (; 0 === Math.random();) {' +
            '  if (42 === (new Date()).getMinutes()) {' +
            '    continue i;' +
            '  } else {' +
            '    break i;' +
            '  }' +
            '}' +
            'try {' +
            '} catch (f) {' +
            '} finally {' +
            '}' +
            '(function g(h) {' +
            '}());' +
            'void [{' +
            '  i: 42,' +
            '  "j": 42,' +
            '  \'k\': 42' +
            '}];' +
            'void ["abcdefghijklmnopqrstuvwxyz"];',
        sOutput:
            '/*jshint shadow:true */' +
            'var a;' +
            'function b(i) {' +
            '}' +
            'for (var c; 0 === Math.random(););' +
            'for (var d in {});' +
            '(function() {' +
            '  var i = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [i];' +
            '  void [b(a), b(c), b(d)];' +
            '  void [typeof e];' +
            '  i: for (; 0 === Math.random();) {' +
            '    if (42 === (new Date()).getMinutes()) {' +
            '      continue i;' +
            '    } else {' +
            '      break i;' +
            '    }' +
            '  }' +
            '  try {' +
            '  } catch (f) {' +
            '  } finally {' +
            '  }' +
            '  (function g(h) {' +
            '  }());' +
            '  void [{' +
            '    i: 42,' +
            '    "j": 42,' +
            '    \'k\': 42' +
            '  }];' +
            '  void [i];' +
            '}());'
      },
      {
        sTitle:
            'Preservation of identifier names in nested function code.',
        sInput:
            '(function() {' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '  (function() {' +
            '    var a;' +
            '    for (var b; 0 === Math.random(););' +
            '    for (var c in {});' +
            '    void [typeof d];' +
            '    h: for (; 0 === Math.random();) {' +
            '      if (42 === (new Date()).getMinutes()) {' +
            '        continue h;' +
            '      } else {' +
            '        break h;' +
            '      }' +
            '    }' +
            '    try {' +
            '    } catch (e) {' +
            '    } finally {' +
            '    }' +
            '    (function f(g) {' +
            '    }());' +
            '    void [{' +
            '      h: 42,' +
            '      "i": 42,' +
            '      \'j\': 42' +
            '    }];' +
            '  }());' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '}());',
        sOutput:
            '(function() {' +
            '  var h = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [h];' +
            '  (function() {' +
            '    var a;' +
            '    for (var b; 0 === Math.random(););' +
            '    for (var c in {});' +
            '    void [typeof d];' +
            '    h: for (; 0 === Math.random();) {' +
            '      if (42 === (new Date()).getMinutes()) {' +
            '        continue h;' +
            '      } else {' +
            '        break h;' +
            '      }' +
            '    }' +
            '    try {' +
            '    } catch (e) {' +
            '    } finally {' +
            '    }' +
            '    (function f(g) {' +
            '    }());' +
            '    void [{' +
            '      h: 42,' +
            '      "i": 42,' +
            '      \'j\': 42' +
            '    }];' +
            '  }());' +
            '  void [h];' +
            '}());'
      },
      {
        sTitle:
            'Consolidation of a closure with other source elements.',
        sInput:
            '(function(foo) {' +
            '}("abcdefghijklmnopqrstuvwxyz"));' +
            'void ["abcdefghijklmnopqrstuvwxyz"];',
        sOutput:
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  (function(foo) {' +
            '  })(a);' +
            '  void [a];' +
            '}());'
      },
      {
        sTitle:
            'Consolidation of function code instead of a sole closure.',
        sInput:
            '(function(foo, bar) {' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '}("abcdefghijklmnopqrstuvwxyz", "abcdefghijklmnopqrstuvwxyz"));',
        sOutput:
            '(function(foo, bar) {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}("abcdefghijklmnopqrstuvwxyz", "abcdefghijklmnopqrstuvwxyz"));'
      },
      // 11.1.5 Object Initialiser.
      {
        sTitle:
            'Preservation of property names of an object initialiser.',
        sInput:
            'var foo = {' +
            '  abcdefghijklmnopqrstuvwxyz: 42,' +
            '  "zyxwvutsrqponmlkjihgfedcba": 42,' +
            '  \'mlkjihgfedcbanopqrstuvwxyz\': 42' +
            '};' +
            'void [' +
            '  foo.abcdefghijklmnopqrstuvwxyz,' +
            '  "zyxwvutsrqponmlkjihgfedcba",' +
            '  \'mlkjihgfedcbanopqrstuvwxyz\'' +
            '];'
      },
      {
        sTitle:
            'Evaluation with regard to String values derived from identifier ' +
            'names used as property accessors.',
        sInput:
            '(function() {' +
            '  var foo;' +
            '  void [' +
            '    Math.abcdefghij,' +
            '    Math.abcdefghij,' +
            '    Math.abcdefghi,' +
            '    Math.abcdefghi' +
            '  ];' +
            '}());',
        sOutput:
            '(function() {' +
            '  var a = "abcdefghij", foo;' +
            '  void [' +
            '    Math[a],' +
            '    Math[a],' +
            '    Math.abcdefghi,' +
            '    Math.abcdefghi' +
            '  ];' +
            '}());'
      },
      // 11.2.1 Property Accessors.
      {
        sTitle:
            'Preservation of identifiers in the nonterminal MemberExpression.',
        sInput:
            'void [' +
            '  Math.E,' +
            '  Math.LN10,' +
            '  Math.LN2,' +
            '  Math.LOG2E,' +
            '  Math.LOG10E,' +
            '  Math.PI,' +
            '  Math.SQRT1_2,' +
            '  Math.SQRT2,' +
            '  Math.abs,' +
            '  Math.acos' +
            '];'
      },
      // 12.2 Variable Statement.
      {
        sTitle:
            'Preservation of the identifier of a variable that is being ' +
            'declared in a variable statement.',
        sInput:
            '(function() {' +
            '  var abcdefghijklmnopqrstuvwxyz;' +
            '  void [abcdefghijklmnopqrstuvwxyz];' +
            '}());'
      },
      {
        sTitle:
            'Exclusion of a variable statement in global code.',
        sInput:
            'void ["abcdefghijklmnopqrstuvwxyz"];' +
            'var foo = "abcdefghijklmnopqrstuvwxyz",' +
            '    bar = "abcdefghijklmnopqrstuvwxyz";' +
            'void ["abcdefghijklmnopqrstuvwxyz"];'
      },
      {
        sTitle:
            'Exclusion of a variable statement in function code that ' +
            'contains a with statement.',
        sInput:
            '(function() {' +
            '  with ({});' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '  var foo;' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '}());'
      },
      {
        sTitle:
            'Exclusion of a variable statement in function code that ' +
            'contains a direct call to the eval function.',
        sInput:
            '/*jshint evil:true */' +
            'void [' +
            '  function() {' +
            '    eval("");' +
            '    void ["abcdefghijklmnopqrstuvwxyz"];' +
            '    var foo;' +
            '    void ["abcdefghijklmnopqrstuvwxyz"];' +
            '  }' +
            '];'
      },
      {
        sTitle:
            'Consolidation within a variable statement in global code.',
        sInput:
            'var foo = function() {' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '};',
        sOutput:
            'var foo = function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '};'
      },
      {
        sTitle:
            'Consolidation within a variable statement excluded in function ' +
            'code due to the presence of a with statement.',
        sInput:
            '(function() {' +
            '  with ({});' +
            '  var foo = function() {' +
            '    void ["abcdefghijklmnopqrstuvwxyz",' +
            '          "abcdefghijklmnopqrstuvwxyz"];' +
            '  };' +
            '}());',
        sOutput:
            '(function() {' +
            '  with ({});' +
            '  var foo = function() {' +
            '    var a = "abcdefghijklmnopqrstuvwxyz";' +
            '    void [a, a];' +
            '  };' +
            '}());'
      },
      {
        sTitle:
            'Consolidation within a variable statement excluded in function ' +
            'code due to the presence of a direct call to the eval function.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  eval("");' +
            '  var foo = function() {' +
            '    void ["abcdefghijklmnopqrstuvwxyz",' +
            '          "abcdefghijklmnopqrstuvwxyz"];' +
            '  };' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  eval("");' +
            '  var foo = function() {' +
            '    var a = "abcdefghijklmnopqrstuvwxyz";' +
            '    void [a, a];' +
            '  };' +
            '}());'
      },
      {
        sTitle:
            'Inclusion of a variable statement in function code that ' +
            'contains no with statement and no direct call to the eval ' +
            'function.',
        sInput:
            '(function() {' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '  var foo;' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '}());',
        sOutput:
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a];' +
            '  var foo;' +
            '  void [a];' +
            '}());'
      },
      {
        sTitle:
            'Ignorance with regard to a variable statement in global code.',
        sInput:
            'var foo = "abcdefghijklmnopqrstuvwxyz";' +
            'void ["abcdefghijklmnopqrstuvwxyz",' +
            '      "abcdefghijklmnopqrstuvwxyz"];',
        sOutput:
            'var foo = "abcdefghijklmnopqrstuvwxyz";' +
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}());'
      },
      // 12.4 Expression Statement.
      {
        sTitle:
            'Preservation of identifiers in an expression statement.',
        sInput:
            'void [typeof abcdefghijklmnopqrstuvwxyz,' +
            '      typeof abcdefghijklmnopqrstuvwxyz];'
      },
      // 12.6.3 The {@code for} Statement.
      {
        sTitle:
            'Preservation of identifiers in the variable declaration list of ' +
            'a for statement.',
        sInput:
            'for (var abcdefghijklmnopqrstuvwxyz; 0 === Math.random(););' +
            'for (var abcdefghijklmnopqrstuvwxyz; 0 === Math.random(););'
      },
      // 12.6.4 The {@code for-in} Statement.
      {
        sTitle:
            'Preservation of identifiers in the variable declaration list of ' +
            'a for-in statement.',
        sInput:
            'for (var abcdefghijklmnopqrstuvwxyz in {});' +
            'for (var abcdefghijklmnopqrstuvwxyz in {});'
      },
      // 12.7 The {@code continue} Statement.
      {
        sTitle:
            'Preservation of the identifier in a continue statement.',
        sInput:
            'abcdefghijklmnopqrstuvwxyz: for (; 0 === Math.random();) {' +
            '  continue abcdefghijklmnopqrstuvwxyz;' +
            '}' +
            'abcdefghijklmnopqrstuvwxyz: for (; 0 === Math.random();) {' +
            '  continue abcdefghijklmnopqrstuvwxyz;' +
            '}'
      },
      // 12.8 The {@code break} Statement.
      {
        sTitle:
            'Preservation of the identifier in a break statement.',
        sInput:
            'abcdefghijklmnopqrstuvwxyz: for (; 0 === Math.random();) {' +
            '  break abcdefghijklmnopqrstuvwxyz;' +
            '}' +
            'abcdefghijklmnopqrstuvwxyz: for (; 0 === Math.random();) {' +
            '  break abcdefghijklmnopqrstuvwxyz;' +
            '}'
      },
      // 12.9 The {@code return} Statement.
      {
        sTitle:
            'Exclusion of a return statement in function code that contains ' +
            'a with statement.',
        sInput:
            '(function() {' +
            '  with ({});' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '  if (0 === Math.random()) {' +
            '    return;' +
            '  } else {' +
            '  }' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '}());'
      },
      {
        sTitle:
            'Exclusion of a return statement in function code that contains ' +
            'a direct call to the eval function.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  eval("");' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '  if (0 === Math.random()) {' +
            '    return;' +
            '  } else {' +
            '  }' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '}());'
      },
      {
        sTitle:
            'Consolidation within a return statement excluded in function ' +
            'code due to the presence of a with statement.',
        sInput:
            '(function() {' +
            '  with ({});' +
            '  return function() {' +
            '    void ["abcdefghijklmnopqrstuvwxyz",' +
            '          "abcdefghijklmnopqrstuvwxyz"];' +
            '  };' +
            '}());',
        sOutput:
            '(function() {' +
            '  with ({});' +
            '  return function() {' +
            '    var a = "abcdefghijklmnopqrstuvwxyz";' +
            '    void [a, a];' +
            '  };' +
            '}());'
      },
      {
        sTitle:
            'Consolidation within a return statement excluded in function ' +
            'code due to the presence of a direct call to the eval function.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  eval("");' +
            '  return function() {' +
            '    void ["abcdefghijklmnopqrstuvwxyz",' +
            '          "abcdefghijklmnopqrstuvwxyz"];' +
            '  };' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  eval("");' +
            '  return function() {' +
            '    var a = "abcdefghijklmnopqrstuvwxyz";' +
            '    void [a, a];' +
            '  };' +
            '}());'
      },
      {
        sTitle:
            'Inclusion of a return statement in function code that contains ' +
            'no with statement and no direct call to the eval function.',
        sInput:
            '(function() {' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '  if (0 === Math.random()) {' +
            '    return;' +
            '  } else {' +
            '  }' +
            '  void ["abcdefghijklmnopqrstuvwxyz"];' +
            '}());',
        sOutput:
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a];' +
            '  if (0 === Math.random()) {' +
            '    return;' +
            '  } else {' +
            '  }' +
            '  void [a];' +
            '}());'
      },
      // 12.10 The {@code with} Statement.
      {
        sTitle:
            'Preservation of the statement in a with statement.',
        sInput:
            'with ({}) {' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '}'
      },
      {
        sTitle:
            'Exclusion of a with statement in the same syntactic code unit.',
        sInput:
            'void ["abcdefghijklmnopqrstuvwxyz"];' +
            'with ({' +
            '  foo: "abcdefghijklmnopqrstuvwxyz",' +
            '  bar: "abcdefghijklmnopqrstuvwxyz"' +
            '}) {' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '}' +
            'void ["abcdefghijklmnopqrstuvwxyz"];'
      },
      {
        sTitle:
            'Exclusion of a with statement in nested function code.',
        sInput:
            'void ["abcdefghijklmnopqrstuvwxyz"];' +
            '(function() {' +
            '  with ({' +
            '    foo: "abcdefghijklmnopqrstuvwxyz",' +
            '    bar: "abcdefghijklmnopqrstuvwxyz"' +
            '  }) {' +
            '    void ["abcdefghijklmnopqrstuvwxyz",' +
            '          "abcdefghijklmnopqrstuvwxyz"];' +
            '  }' +
            '}());' +
            'void ["abcdefghijklmnopqrstuvwxyz"];'
      },
      // 12.12 Labelled Statements.
      {
        sTitle:
            'Preservation of the label of a labelled statement.',
        sInput:
            'abcdefghijklmnopqrstuvwxyz: for (; 0 === Math.random(););' +
            'abcdefghijklmnopqrstuvwxyz: for (; 0 === Math.random(););'
      },
      // 12.14 The {@code try} Statement.
      {
        sTitle:
            'Preservation of the identifier in the catch clause of a try' +
            'statement.',
        sInput:
            'try {' +
            '} catch (abcdefghijklmnopqrstuvwxyz) {' +
            '} finally {' +
            '}' +
            'try {' +
            '} catch (abcdefghijklmnopqrstuvwxyz) {' +
            '} finally {' +
            '}'
      },
      // 13 Function Definition.
      {
        sTitle:
            'Preservation of the identifier of a function declaration.',
        sInput:
            'function abcdefghijklmnopqrstuvwxyz() {' +
            '}' +
            'void [abcdefghijklmnopqrstuvwxyz];'
      },
      {
        sTitle:
            'Preservation of the identifier of a function expression.',
        sInput:
            'void [' +
            '  function abcdefghijklmnopqrstuvwxyz() {' +
            '  },' +
            '  function abcdefghijklmnopqrstuvwxyz() {' +
            '  }' +
            '];'
      },
      {
        sTitle:
            'Preservation of a formal parameter of a function declaration.',
        sInput:
            'function foo(abcdefghijklmnopqrstuvwxyz) {' +
            '}' +
            'function bar(abcdefghijklmnopqrstuvwxyz) {' +
            '}'
      },
      {
        sTitle:
            'Preservation of a formal parameter in a function expression.',
        sInput:
            'void [' +
            '  function(abcdefghijklmnopqrstuvwxyz) {' +
            '  },' +
            '  function(abcdefghijklmnopqrstuvwxyz) {' +
            '  }' +
            '];'
      },
      {
        sTitle:
            'Exclusion of a function declaration.',
        sInput:
            'void ["abcdefghijklmnopqrstuvwxyz"];' +
            'function foo() {' +
            '}' +
            'void ["abcdefghijklmnopqrstuvwxyz"];'
      },
      {
        sTitle:
            'Consolidation within a function declaration.',
        sInput:
            'function foo() {' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '}',
        sOutput:
            'function foo() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}'
      },
      // 14 Program.
      {
        sTitle:
            'Preservation of a program without source elements.',
        sInput:
            ''
      },
      // 14.1 Directive Prologues and the Use Strict Directive.
      {
        sTitle:
            'Preservation of a Directive Prologue in global code.',
        sInput:
            '"abcdefghijklmnopqrstuvwxyz";' +
            '\'zyxwvutsrqponmlkjihgfedcba\';'
      },
      {
        sTitle:
            'Preservation of a Directive Prologue in a function declaration.',
        sInput:
            'function foo() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  \'zyxwvutsrqponmlkjihgfedcba\';' +
            '}'
      },
      {
        sTitle:
            'Preservation of a Directive Prologue in a function expression.',
        sInput:
            'void [' +
            '  function() {' +
            '    "abcdefghijklmnopqrstuvwxyz";' +
            '    \'zyxwvutsrqponmlkjihgfedcba\';' +
            '  }' +
            '];'
      },
      {
        sTitle:
            'Ignorance with regard to a Directive Prologue in global code.',
        sInput:
            '"abcdefghijklmnopqrstuvwxyz";' +
            'void ["abcdefghijklmnopqrstuvwxyz",' +
            '      "abcdefghijklmnopqrstuvwxyz"];',
        sOutput:
            '"abcdefghijklmnopqrstuvwxyz";' +
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}());'
      },
      {
        sTitle:
            'Ignorance with regard to a Directive Prologue in a function' +
            'declaration.',
        sInput:
            'function foo() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '}',
        sOutput:
            'function foo() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}'
      },
      {
        sTitle:
            'Ignorance with regard to a Directive Prologue in a function' +
            'expression.',
        sInput:
            '(function() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '}());',
        sOutput:
            '(function() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}());'
      },
      // 15.1 The Global Object.
      {
        sTitle:
            'Preservation of a property of the global object.',
        sInput:
            'void [undefined, undefined, undefined, undefined, undefined];'
      },
      // 15.1.2.1.1 Direct Call to Eval.
      {
        sTitle:
            'Exclusion of a direct call to the eval function in the same ' +
            'syntactic code unit.',
        sInput:
            '/*jshint evil:true */' +
            'void ["abcdefghijklmnopqrstuvwxyz"];' +
            'eval("");' +
            'void ["abcdefghijklmnopqrstuvwxyz"];'
      },
      {
        sTitle:
            'Exclusion of a direct call to the eval function in nested ' +
            'function code.',
        sInput:
            '/*jshint evil:true */' +
            'void ["abcdefghijklmnopqrstuvwxyz"];' +
            '(function() {' +
            '  eval("");' +
            '}());' +
            'void ["abcdefghijklmnopqrstuvwxyz"];'
      },
      {
        sTitle:
            'Consolidation within a direct call to the eval function.',
        sInput:
            '/*jshint evil:true */' +
            'eval(function() {' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            'eval(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}());'
      },
      // Consolidation proper.
      {
        sTitle:
            'No consolidation if it does not result in a reduction of the ' +
            'number of source characters.',
        sInput:
            '(function() {' +
            '  var foo;' +
            '  void ["ab", "ab", "abc", "abc"];' +
            '}());'
      },
      {
        sTitle:
            'Identification of a range of source elements at the beginning ' +
            'of global code.',
        sInput:
            '/*jshint evil:true */' +
            '"abcdefghijklmnopqrstuvwxyz";' +
            'void ["abcdefghijklmnopqrstuvwxyz",' +
            '      "abcdefghijklmnopqrstuvwxyz"];' +
            'eval("");',
        sOutput:
            '/*jshint evil:true */' +
            '"abcdefghijklmnopqrstuvwxyz";' +
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}());' +
            'eval("");'
      },
      {
        sTitle:
            'Identification of a range of source elements in the middle of ' +
            'global code.',
        sInput:
            '/*jshint evil:true */' +
            '"abcdefghijklmnopqrstuvwxyz";' +
            'eval("");' +
            'void ["abcdefghijklmnopqrstuvwxyz",' +
            '      "abcdefghijklmnopqrstuvwxyz"];' +
            'eval("");',
        sOutput:
            '/*jshint evil:true */' +
            '"abcdefghijklmnopqrstuvwxyz";' +
            'eval("");' +
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}());' +
            'eval("");'
      },
      {
        sTitle:
            'Identification of a range of source elements at the end of ' +
            'global code.',
        sInput:
            '/*jshint evil:true */' +
            '"abcdefghijklmnopqrstuvwxyz";' +
            'eval("");' +
            'void ["abcdefghijklmnopqrstuvwxyz",' +
            '      "abcdefghijklmnopqrstuvwxyz"];',
        sOutput:
            '/*jshint evil:true */' +
            '"abcdefghijklmnopqrstuvwxyz";' +
            'eval("");' +
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}());'
      },
      {
        sTitle:
            'Identification of a range of source elements at the beginning ' +
            'of function code.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '  eval("");' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  (function() {' +
            '    var a = "abcdefghijklmnopqrstuvwxyz";' +
            '    void [a, a];' +
            '  }());' +
            '  eval("");' +
            '}());'
      },
      {
        sTitle:
            'Identification of a range of source elements in the middle of ' +
            'function code.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  eval("");' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '  eval("");' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  eval("");' +
            '  (function() {' +
            '    var a = "abcdefghijklmnopqrstuvwxyz";' +
            '    void [a, a];' +
            '  }());' +
            '  eval("");' +
            '}());'
      },
      {
        sTitle:
            'Identification of a range of source elements at the end of ' +
            'function code.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  eval("");' +
            '  void ["abcdefghijklmnopqrstuvwxyz",' +
            '        "abcdefghijklmnopqrstuvwxyz"];' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  "abcdefghijklmnopqrstuvwxyz";' +
            '  eval("");' +
            '  (function() {' +
            '    var a = "abcdefghijklmnopqrstuvwxyz";' +
            '    void [a, a];' +
            '  }());' +
            '}());'
      },
      {
        sTitle:
            'Evaluation with regard to String values of String literals and ' +
            'String values derived from identifier names used as property' +
            'accessors.',
        sInput:
            '(function() {' +
            '  var foo;' +
            '  void ["abcdefg", Math.abcdefg, "abcdef", Math.abcdef];' +
            '}());',
        sOutput:
            '(function() {' +
            '  var a = "abcdefg", foo;' +
            '  void [a, Math[a], "abcdef", Math.abcdef];' +
            '}());'
      },
      {
        sTitle:
            'Evaluation with regard to the necessity of adding a variable ' +
            'statement.',
        sInput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  void ["abcdefgh", "abcdefgh"];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  void ["abcdefg", "abcdefg"];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  var foo;' +
            '  void ["abcd", "abcd"];' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  var a = "abcdefgh";' +
            '  void [a, a];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  void ["abcdefg", "abcdefg"];' +
            '}());' +
            'eval("");' +
            '(function() {' +
            '  var a = "abcd", foo;' +
            '  void [a, a];' +
            '}());'
      },
      {
        sTitle:
            'Evaluation with regard to the necessity of enclosing source ' +
            'elements.',
        sInput:
            '/*jshint evil:true */' +
            'void ["abcdefghijklmnopqrstuvwxy", "abcdefghijklmnopqrstuvwxy"];' +
            'eval("");' +
            'void ["abcdefghijklmnopqrstuvwx", "abcdefghijklmnopqrstuvwx"];' +
            'eval("");' +
            '(function() {' +
            '  void ["abcdefgh", "abcdefgh"];' +
            '}());' +
            '(function() {' +
            '  void ["abcdefghijklmnopqrstuvwxy",' +
            '        "abcdefghijklmnopqrstuvwxy"];' +
            '  eval("");' +
            '  void ["abcdefghijklmnopqrstuvwx",' +
            '        "abcdefghijklmnopqrstuvwx"];' +
            '  eval("");' +
            '  (function() {' +
            '    void ["abcdefgh", "abcdefgh"];' +
            '  }());' +
            '}());',
        sOutput:
            '/*jshint evil:true */' +
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxy";' +
            '  void [a, a];' +
            '}());' +
            'eval("");' +
            'void ["abcdefghijklmnopqrstuvwx", "abcdefghijklmnopqrstuvwx"];' +
            'eval("");' +
            '(function() {' +
            '  var a = "abcdefgh";' +
            '  void [a, a];' +
            '}());' +
            '(function() {' +
            '  (function() {' +
            '    var a = "abcdefghijklmnopqrstuvwxy";' +
            '    void [a, a];' +
            '  }());' +
            '  eval("");' +
            '  void ["abcdefghijklmnopqrstuvwx", "abcdefghijklmnopqrstuvwx"];' +
            '  eval("");' +
            '  (function() {' +
            '    var a = "abcdefgh";' +
            '    void [a, a];' +
            '  }());' +
            '}());'
      },
      {
        sTitle:
            'Employment of a closure while consolidating in global code.',
        sInput:
            'void ["abcdefghijklmnopqrstuvwxyz",' +
            '      "abcdefghijklmnopqrstuvwxyz"];',
        sOutput:
            '(function() {' +
            '  var a = "abcdefghijklmnopqrstuvwxyz";' +
            '  void [a, a];' +
            '}());'
      },
      {
        sTitle:
            'Assignment of a shorter identifier to a value whose ' +
            'consolidation results in a greater reduction of the number of ' +
            'source characters.',
        sInput:
            '(function() {' +
            '  var b, c, d, e, f, g, h, i, j, k, l, m,' +
            '      n, o, p, q, r, s, t, u, v, w, x, y, z,' +
            '      A, B, C, D, E, F, G, H, I, J, K, L, M,' +
            '      N, O, P, Q, R, S, T, U, V, W, X, Y, Z,' +
            '      $, _;' +
            '  void ["abcde", "abcde", "edcba", "edcba", "edcba"];' +
            '}());',
        sOutput:
            '(function() {' +
            '  var a = "edcba",' +
            '      b, c, d, e, f, g, h, i, j, k, l, m,' +
            '      n, o, p, q, r, s, t, u, v, w, x, y, z,' +
            '      A, B, C, D, E, F, G, H, I, J, K, L, M,' +
            '      N, O, P, Q, R, S, T, U, V, W, X, Y, Z,' +
            '      $, _;' +
            '  void ["abcde", "abcde", a, a, a];' +
            '}());'
      }
    ].forEach(cAssert);
  }());
}

/* Local Variables:      */
/* mode: js              */
/* coding: utf-8         */
/* indent-tabs-mode: nil */
/* tab-width: 2          */
/* End:                  */
/* vim: set ft=javascript fenc=utf-8 et ts=2 sts=2 sw=2: */
/* :mode=javascript:noTabs=true:tabSize=2:indentSize=2:deepIndent=true: */

});
define('uglifyjs/parse-js', ["exports"], function(exports) {

/***********************************************************************

  A JavaScript tokenizer / parser / beautifier / compressor.

  This version is suitable for Node.js.  With minimal changes (the
  exports stuff) it should work on any JS platform.

  This file contains the tokenizer/parser.  It is a port to JavaScript
  of parse-js [1], a JavaScript parser library written in Common Lisp
  by Marijn Haverbeke.  Thank you Marijn!

  [1] http://marijn.haverbeke.nl/parse-js/

  Exported functions:

    - tokenizer(code) -- returns a function.  Call the returned
      function to fetch the next token.

    - parse(code) -- returns an AST of the given JavaScript code.

  -------------------------------- (C) ---------------------------------

                           Author: Mihai Bazon
                         <mihai.bazon@gmail.com>
                       http://mihai.bazon.net/blog

  Distributed under the BSD license:

    Copyright 2010 (c) Mihai Bazon <mihai.bazon@gmail.com>
    Based on parse-js (http://marijn.haverbeke.nl/parse-js/).

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

        * Redistributions of source code must retain the above
          copyright notice, this list of conditions and the following
          disclaimer.

        * Redistributions in binary form must reproduce the above
          copyright notice, this list of conditions and the following
          disclaimer in the documentation and/or other materials
          provided with the distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
    THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    SUCH DAMAGE.

 ***********************************************************************/

/* -----[ Tokenizer (constants) ]----- */

var KEYWORDS = array_to_hash([
        "break",
        "case",
        "catch",
        "const",
        "continue",
        "debugger",
        "default",
        "delete",
        "do",
        "else",
        "finally",
        "for",
        "function",
        "if",
        "in",
        "instanceof",
        "new",
        "return",
        "switch",
        "throw",
        "try",
        "typeof",
        "var",
        "void",
        "while",
        "with"
]);

var RESERVED_WORDS = array_to_hash([
        "abstract",
        "boolean",
        "byte",
        "char",
        "class",
        "double",
        "enum",
        "export",
        "extends",
        "final",
        "float",
        "goto",
        "implements",
        "import",
        "int",
        "interface",
        "long",
        "native",
        "package",
        "private",
        "protected",
        "public",
        "short",
        "static",
        "super",
        "synchronized",
        "throws",
        "transient",
        "volatile"
]);

var KEYWORDS_BEFORE_EXPRESSION = array_to_hash([
        "return",
        "new",
        "delete",
        "throw",
        "else",
        "case"
]);

var KEYWORDS_ATOM = array_to_hash([
        "false",
        "null",
        "true",
        "undefined"
]);

var OPERATOR_CHARS = array_to_hash(characters("+-*&%=<>!?|~^"));

var RE_HEX_NUMBER = /^0x[0-9a-f]+$/i;
var RE_OCT_NUMBER = /^0[0-7]+$/;
var RE_DEC_NUMBER = /^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i;

var OPERATORS = array_to_hash([
        "in",
        "instanceof",
        "typeof",
        "new",
        "void",
        "delete",
        "++",
        "--",
        "+",
        "-",
        "!",
        "~",
        "&",
        "|",
        "^",
        "*",
        "/",
        "%",
        ">>",
        "<<",
        ">>>",
        "<",
        ">",
        "<=",
        ">=",
        "==",
        "===",
        "!=",
        "!==",
        "?",
        "=",
        "+=",
        "-=",
        "/=",
        "*=",
        "%=",
        ">>=",
        "<<=",
        ">>>=",
        "|=",
        "^=",
        "&=",
        "&&",
        "||"
]);

var WHITESPACE_CHARS = array_to_hash(characters(" \u00a0\n\r\t\f\u000b\u200b\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000"));

var PUNC_BEFORE_EXPRESSION = array_to_hash(characters("[{(,.;:"));

var PUNC_CHARS = array_to_hash(characters("[]{}(),;:"));

var REGEXP_MODIFIERS = array_to_hash(characters("gmsiy"));

/* -----[ Tokenizer ]----- */

// regexps adapted from http://xregexp.com/plugins/#unicode
var UNICODE = {
        letter: new RegExp("[\\u0041-\\u005A\\u0061-\\u007A\\u00AA\\u00B5\\u00BA\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02C1\\u02C6-\\u02D1\\u02E0-\\u02E4\\u02EC\\u02EE\\u0370-\\u0374\\u0376\\u0377\\u037A-\\u037D\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03F5\\u03F7-\\u0481\\u048A-\\u0523\\u0531-\\u0556\\u0559\\u0561-\\u0587\\u05D0-\\u05EA\\u05F0-\\u05F2\\u0621-\\u064A\\u066E\\u066F\\u0671-\\u06D3\\u06D5\\u06E5\\u06E6\\u06EE\\u06EF\\u06FA-\\u06FC\\u06FF\\u0710\\u0712-\\u072F\\u074D-\\u07A5\\u07B1\\u07CA-\\u07EA\\u07F4\\u07F5\\u07FA\\u0904-\\u0939\\u093D\\u0950\\u0958-\\u0961\\u0971\\u0972\\u097B-\\u097F\\u0985-\\u098C\\u098F\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BD\\u09CE\\u09DC\\u09DD\\u09DF-\\u09E1\\u09F0\\u09F1\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A59-\\u0A5C\\u0A5E\\u0A72-\\u0A74\\u0A85-\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0AD0\\u0AE0\\u0AE1\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3D\\u0B5C\\u0B5D\\u0B5F-\\u0B61\\u0B71\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BD0\\u0C05-\\u0C0C\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C33\\u0C35-\\u0C39\\u0C3D\\u0C58\\u0C59\\u0C60\\u0C61\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBD\\u0CDE\\u0CE0\\u0CE1\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D28\\u0D2A-\\u0D39\\u0D3D\\u0D60\\u0D61\\u0D7A-\\u0D7F\\u0D85-\\u0D96\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0E01-\\u0E30\\u0E32\\u0E33\\u0E40-\\u0E46\\u0E81\\u0E82\\u0E84\\u0E87\\u0E88\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5\\u0EA7\\u0EAA\\u0EAB\\u0EAD-\\u0EB0\\u0EB2\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\\u0EDC\\u0EDD\\u0F00\\u0F40-\\u0F47\\u0F49-\\u0F6C\\u0F88-\\u0F8B\\u1000-\\u102A\\u103F\\u1050-\\u1055\\u105A-\\u105D\\u1061\\u1065\\u1066\\u106E-\\u1070\\u1075-\\u1081\\u108E\\u10A0-\\u10C5\\u10D0-\\u10FA\\u10FC\\u1100-\\u1159\\u115F-\\u11A2\\u11A8-\\u11F9\\u1200-\\u1248\\u124A-\\u124D\\u1250-\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u1380-\\u138F\\u13A0-\\u13F4\\u1401-\\u166C\\u166F-\\u1676\\u1681-\\u169A\\u16A0-\\u16EA\\u1700-\\u170C\\u170E-\\u1711\\u1720-\\u1731\\u1740-\\u1751\\u1760-\\u176C\\u176E-\\u1770\\u1780-\\u17B3\\u17D7\\u17DC\\u1820-\\u1877\\u1880-\\u18A8\\u18AA\\u1900-\\u191C\\u1950-\\u196D\\u1970-\\u1974\\u1980-\\u19A9\\u19C1-\\u19C7\\u1A00-\\u1A16\\u1B05-\\u1B33\\u1B45-\\u1B4B\\u1B83-\\u1BA0\\u1BAE\\u1BAF\\u1C00-\\u1C23\\u1C4D-\\u1C4F\\u1C5A-\\u1C7D\\u1D00-\\u1DBF\\u1E00-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u2071\\u207F\\u2090-\\u2094\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2139\\u213C-\\u213F\\u2145-\\u2149\\u214E\\u2183\\u2184\\u2C00-\\u2C2E\\u2C30-\\u2C5E\\u2C60-\\u2C6F\\u2C71-\\u2C7D\\u2C80-\\u2CE4\\u2D00-\\u2D25\\u2D30-\\u2D65\\u2D6F\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE\\u2E2F\\u3005\\u3006\\u3031-\\u3035\\u303B\\u303C\\u3041-\\u3096\\u309D-\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FF\\u3105-\\u312D\\u3131-\\u318E\\u31A0-\\u31B7\\u31F0-\\u31FF\\u3400\\u4DB5\\u4E00\\u9FC3\\uA000-\\uA48C\\uA500-\\uA60C\\uA610-\\uA61F\\uA62A\\uA62B\\uA640-\\uA65F\\uA662-\\uA66E\\uA67F-\\uA697\\uA717-\\uA71F\\uA722-\\uA788\\uA78B\\uA78C\\uA7FB-\\uA801\\uA803-\\uA805\\uA807-\\uA80A\\uA80C-\\uA822\\uA840-\\uA873\\uA882-\\uA8B3\\uA90A-\\uA925\\uA930-\\uA946\\uAA00-\\uAA28\\uAA40-\\uAA42\\uAA44-\\uAA4B\\uAC00\\uD7A3\\uF900-\\uFA2D\\uFA30-\\uFA6A\\uFA70-\\uFAD9\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFB1D\\uFB1F-\\uFB28\\uFB2A-\\uFB36\\uFB38-\\uFB3C\\uFB3E\\uFB40\\uFB41\\uFB43\\uFB44\\uFB46-\\uFBB1\\uFBD3-\\uFD3D\\uFD50-\\uFD8F\\uFD92-\\uFDC7\\uFDF0-\\uFDFB\\uFE70-\\uFE74\\uFE76-\\uFEFC\\uFF21-\\uFF3A\\uFF41-\\uFF5A\\uFF66-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC]"),
        non_spacing_mark: new RegExp("[\\u0300-\\u036F\\u0483-\\u0487\\u0591-\\u05BD\\u05BF\\u05C1\\u05C2\\u05C4\\u05C5\\u05C7\\u0610-\\u061A\\u064B-\\u065E\\u0670\\u06D6-\\u06DC\\u06DF-\\u06E4\\u06E7\\u06E8\\u06EA-\\u06ED\\u0711\\u0730-\\u074A\\u07A6-\\u07B0\\u07EB-\\u07F3\\u0816-\\u0819\\u081B-\\u0823\\u0825-\\u0827\\u0829-\\u082D\\u0900-\\u0902\\u093C\\u0941-\\u0948\\u094D\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09BC\\u09C1-\\u09C4\\u09CD\\u09E2\\u09E3\\u0A01\\u0A02\\u0A3C\\u0A41\\u0A42\\u0A47\\u0A48\\u0A4B-\\u0A4D\\u0A51\\u0A70\\u0A71\\u0A75\\u0A81\\u0A82\\u0ABC\\u0AC1-\\u0AC5\\u0AC7\\u0AC8\\u0ACD\\u0AE2\\u0AE3\\u0B01\\u0B3C\\u0B3F\\u0B41-\\u0B44\\u0B4D\\u0B56\\u0B62\\u0B63\\u0B82\\u0BC0\\u0BCD\\u0C3E-\\u0C40\\u0C46-\\u0C48\\u0C4A-\\u0C4D\\u0C55\\u0C56\\u0C62\\u0C63\\u0CBC\\u0CBF\\u0CC6\\u0CCC\\u0CCD\\u0CE2\\u0CE3\\u0D41-\\u0D44\\u0D4D\\u0D62\\u0D63\\u0DCA\\u0DD2-\\u0DD4\\u0DD6\\u0E31\\u0E34-\\u0E3A\\u0E47-\\u0E4E\\u0EB1\\u0EB4-\\u0EB9\\u0EBB\\u0EBC\\u0EC8-\\u0ECD\\u0F18\\u0F19\\u0F35\\u0F37\\u0F39\\u0F71-\\u0F7E\\u0F80-\\u0F84\\u0F86\\u0F87\\u0F90-\\u0F97\\u0F99-\\u0FBC\\u0FC6\\u102D-\\u1030\\u1032-\\u1037\\u1039\\u103A\\u103D\\u103E\\u1058\\u1059\\u105E-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108D\\u109D\\u135F\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17B7-\\u17BD\\u17C6\\u17C9-\\u17D3\\u17DD\\u180B-\\u180D\\u18A9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193B\\u1A17\\u1A18\\u1A56\\u1A58-\\u1A5E\\u1A60\\u1A62\\u1A65-\\u1A6C\\u1A73-\\u1A7C\\u1A7F\\u1B00-\\u1B03\\u1B34\\u1B36-\\u1B3A\\u1B3C\\u1B42\\u1B6B-\\u1B73\\u1B80\\u1B81\\u1BA2-\\u1BA5\\u1BA8\\u1BA9\\u1C2C-\\u1C33\\u1C36\\u1C37\\u1CD0-\\u1CD2\\u1CD4-\\u1CE0\\u1CE2-\\u1CE8\\u1CED\\u1DC0-\\u1DE6\\u1DFD-\\u1DFF\\u20D0-\\u20DC\\u20E1\\u20E5-\\u20F0\\u2CEF-\\u2CF1\\u2DE0-\\u2DFF\\u302A-\\u302F\\u3099\\u309A\\uA66F\\uA67C\\uA67D\\uA6F0\\uA6F1\\uA802\\uA806\\uA80B\\uA825\\uA826\\uA8C4\\uA8E0-\\uA8F1\\uA926-\\uA92D\\uA947-\\uA951\\uA980-\\uA982\\uA9B3\\uA9B6-\\uA9B9\\uA9BC\\uAA29-\\uAA2E\\uAA31\\uAA32\\uAA35\\uAA36\\uAA43\\uAA4C\\uAAB0\\uAAB2-\\uAAB4\\uAAB7\\uAAB8\\uAABE\\uAABF\\uAAC1\\uABE5\\uABE8\\uABED\\uFB1E\\uFE00-\\uFE0F\\uFE20-\\uFE26]"),
        space_combining_mark: new RegExp("[\\u0903\\u093E-\\u0940\\u0949-\\u094C\\u094E\\u0982\\u0983\\u09BE-\\u09C0\\u09C7\\u09C8\\u09CB\\u09CC\\u09D7\\u0A03\\u0A3E-\\u0A40\\u0A83\\u0ABE-\\u0AC0\\u0AC9\\u0ACB\\u0ACC\\u0B02\\u0B03\\u0B3E\\u0B40\\u0B47\\u0B48\\u0B4B\\u0B4C\\u0B57\\u0BBE\\u0BBF\\u0BC1\\u0BC2\\u0BC6-\\u0BC8\\u0BCA-\\u0BCC\\u0BD7\\u0C01-\\u0C03\\u0C41-\\u0C44\\u0C82\\u0C83\\u0CBE\\u0CC0-\\u0CC4\\u0CC7\\u0CC8\\u0CCA\\u0CCB\\u0CD5\\u0CD6\\u0D02\\u0D03\\u0D3E-\\u0D40\\u0D46-\\u0D48\\u0D4A-\\u0D4C\\u0D57\\u0D82\\u0D83\\u0DCF-\\u0DD1\\u0DD8-\\u0DDF\\u0DF2\\u0DF3\\u0F3E\\u0F3F\\u0F7F\\u102B\\u102C\\u1031\\u1038\\u103B\\u103C\\u1056\\u1057\\u1062-\\u1064\\u1067-\\u106D\\u1083\\u1084\\u1087-\\u108C\\u108F\\u109A-\\u109C\\u17B6\\u17BE-\\u17C5\\u17C7\\u17C8\\u1923-\\u1926\\u1929-\\u192B\\u1930\\u1931\\u1933-\\u1938\\u19B0-\\u19C0\\u19C8\\u19C9\\u1A19-\\u1A1B\\u1A55\\u1A57\\u1A61\\u1A63\\u1A64\\u1A6D-\\u1A72\\u1B04\\u1B35\\u1B3B\\u1B3D-\\u1B41\\u1B43\\u1B44\\u1B82\\u1BA1\\u1BA6\\u1BA7\\u1BAA\\u1C24-\\u1C2B\\u1C34\\u1C35\\u1CE1\\u1CF2\\uA823\\uA824\\uA827\\uA880\\uA881\\uA8B4-\\uA8C3\\uA952\\uA953\\uA983\\uA9B4\\uA9B5\\uA9BA\\uA9BB\\uA9BD-\\uA9C0\\uAA2F\\uAA30\\uAA33\\uAA34\\uAA4D\\uAA7B\\uABE3\\uABE4\\uABE6\\uABE7\\uABE9\\uABEA\\uABEC]"),
        connector_punctuation: new RegExp("[\\u005F\\u203F\\u2040\\u2054\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFF3F]")
};

function is_letter(ch) {
        return UNICODE.letter.test(ch);
};

function is_digit(ch) {
        ch = ch.charCodeAt(0);
        return ch >= 48 && ch <= 57; //XXX: find out if "UnicodeDigit" means something else than 0..9
};

function is_alphanumeric_char(ch) {
        return is_digit(ch) || is_letter(ch);
};

function is_unicode_combining_mark(ch) {
        return UNICODE.non_spacing_mark.test(ch) || UNICODE.space_combining_mark.test(ch);
};

function is_unicode_connector_punctuation(ch) {
        return UNICODE.connector_punctuation.test(ch);
};

function is_identifier_start(ch) {
        return ch == "$" || ch == "_" || is_letter(ch);
};

function is_identifier_char(ch) {
        return is_identifier_start(ch)
                || is_unicode_combining_mark(ch)
                || is_digit(ch)
                || is_unicode_connector_punctuation(ch)
                || ch == "\u200c" // zero-width non-joiner <ZWNJ>
                || ch == "\u200d" // zero-width joiner <ZWJ> (in my ECMA-262 PDF, this is also 200c)
        ;
};

function parse_js_number(num) {
        if (RE_HEX_NUMBER.test(num)) {
                return parseInt(num.substr(2), 16);
        } else if (RE_OCT_NUMBER.test(num)) {
                return parseInt(num.substr(1), 8);
        } else if (RE_DEC_NUMBER.test(num)) {
                return parseFloat(num);
        }
};

function JS_Parse_Error(message, line, col, pos) {
        this.message = message;
        this.line = line + 1;
        this.col = col + 1;
        this.pos = pos + 1;
        this.stack = new Error().stack;
};

JS_Parse_Error.prototype.toString = function() {
        return this.message + " (line: " + this.line + ", col: " + this.col + ", pos: " + this.pos + ")" + "\n\n" + this.stack;
};

function js_error(message, line, col, pos) {
        throw new JS_Parse_Error(message, line, col, pos);
};

function is_token(token, type, val) {
        return token.type == type && (val == null || token.value == val);
};

var EX_EOF = {};

function tokenizer($TEXT) {

        var S = {
                text            : $TEXT.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/^\uFEFF/, ''),
                pos             : 0,
                tokpos          : 0,
                line            : 0,
                tokline         : 0,
                col             : 0,
                tokcol          : 0,
                newline_before  : false,
                regex_allowed   : false,
                comments_before : []
        };

        function peek() { return S.text.charAt(S.pos); };

        function next(signal_eof, in_string) {
                var ch = S.text.charAt(S.pos++);
                if (signal_eof && !ch)
                        throw EX_EOF;
                if (ch == "\n") {
                        S.newline_before = S.newline_before || !in_string;
                        ++S.line;
                        S.col = 0;
                } else {
                        ++S.col;
                }
                return ch;
        };

        function eof() {
                return !S.peek();
        };

        function find(what, signal_eof) {
                var pos = S.text.indexOf(what, S.pos);
                if (signal_eof && pos == -1) throw EX_EOF;
                return pos;
        };

        function start_token() {
                S.tokline = S.line;
                S.tokcol = S.col;
                S.tokpos = S.pos;
        };

        function token(type, value, is_comment) {
                S.regex_allowed = ((type == "operator" && !HOP(UNARY_POSTFIX, value)) ||
                                   (type == "keyword" && HOP(KEYWORDS_BEFORE_EXPRESSION, value)) ||
                                   (type == "punc" && HOP(PUNC_BEFORE_EXPRESSION, value)));
                var ret = {
                        type   : type,
                        value  : value,
                        line   : S.tokline,
                        col    : S.tokcol,
                        pos    : S.tokpos,
                        endpos : S.pos,
                        nlb    : S.newline_before
                };
                if (!is_comment) {
                        ret.comments_before = S.comments_before;
                        S.comments_before = [];
                }
                S.newline_before = false;
                return ret;
        };

        function skip_whitespace() {
                while (HOP(WHITESPACE_CHARS, peek()))
                        next();
        };

        function read_while(pred) {
                var ret = "", ch = peek(), i = 0;
                while (ch && pred(ch, i++)) {
                        ret += next();
                        ch = peek();
                }
                return ret;
        };

        function parse_error(err) {
                js_error(err, S.tokline, S.tokcol, S.tokpos);
        };

        function read_num(prefix) {
                var has_e = false, after_e = false, has_x = false, has_dot = prefix == ".";
                var num = read_while(function(ch, i){
                        if (ch == "x" || ch == "X") {
                                if (has_x) return false;
                                return has_x = true;
                        }
                        if (!has_x && (ch == "E" || ch == "e")) {
                                if (has_e) return false;
                                return has_e = after_e = true;
                        }
                        if (ch == "-") {
                                if (after_e || (i == 0 && !prefix)) return true;
                                return false;
                        }
                        if (ch == "+") return after_e;
                        after_e = false;
                        if (ch == ".") {
                                if (!has_dot && !has_x)
                                        return has_dot = true;
                                return false;
                        }
                        return is_alphanumeric_char(ch);
                });
                if (prefix)
                        num = prefix + num;
                var valid = parse_js_number(num);
                if (!isNaN(valid)) {
                        return token("num", valid);
                } else {
                        parse_error("Invalid syntax: " + num);
                }
        };

        function read_escaped_char(in_string) {
                var ch = next(true, in_string);
                switch (ch) {
                    case "n" : return "\n";
                    case "r" : return "\r";
                    case "t" : return "\t";
                    case "b" : return "\b";
                    case "v" : return "\u000b";
                    case "f" : return "\f";
                    case "0" : return "\0";
                    case "x" : return String.fromCharCode(hex_bytes(2));
                    case "u" : return String.fromCharCode(hex_bytes(4));
                    case "\n": return "";
                    default  : return ch;
                }
        };

        function hex_bytes(n) {
                var num = 0;
                for (; n > 0; --n) {
                        var digit = parseInt(next(true), 16);
                        if (isNaN(digit))
                                parse_error("Invalid hex-character pattern in string");
                        num = (num << 4) | digit;
                }
                return num;
        };

        function read_string() {
                return with_eof_error("Unterminated string constant", function(){
                        var quote = next(), ret = "";
                        for (;;) {
                                var ch = next(true);
                                if (ch == "\\") {
                                        // read OctalEscapeSequence (XXX: deprecated if "strict mode")
                                        // https://github.com/mishoo/UglifyJS/issues/178
                                        var octal_len = 0, first = null;
                                        ch = read_while(function(ch){
                                                if (ch >= "0" && ch <= "7") {
                                                        if (!first) {
                                                                first = ch;
                                                                return ++octal_len;
                                                        }
                                                        else if (first <= "3" && octal_len <= 2) return ++octal_len;
                                                        else if (first >= "4" && octal_len <= 1) return ++octal_len;
                                                }
                                                return false;
                                        });
                                        if (octal_len > 0) ch = String.fromCharCode(parseInt(ch, 8));
                                        else ch = read_escaped_char(true);
                                }
                                else if (ch == quote) break;
                                ret += ch;
                        }
                        return token("string", ret);
                });
        };

        function read_line_comment() {
                next();
                var i = find("\n"), ret;
                if (i == -1) {
                        ret = S.text.substr(S.pos);
                        S.pos = S.text.length;
                } else {
                        ret = S.text.substring(S.pos, i);
                        S.pos = i;
                }
                return token("comment1", ret, true);
        };

        function read_multiline_comment() {
                next();
                return with_eof_error("Unterminated multiline comment", function(){
                        var i = find("*/", true),
                            text = S.text.substring(S.pos, i);
                        S.pos = i + 2;
                        S.line += text.split("\n").length - 1;
                        S.newline_before = text.indexOf("\n") >= 0;

                        // https://github.com/mishoo/UglifyJS/issues/#issue/100
                        if (/^@cc_on/i.test(text)) {
                                warn("WARNING: at line " + S.line);
                                warn("*** Found \"conditional comment\": " + text);
                                warn("*** UglifyJS DISCARDS ALL COMMENTS.  This means your code might no longer work properly in Internet Explorer.");
                        }

                        return token("comment2", text, true);
                });
        };

        function read_name() {
                var backslash = false, name = "", ch, escaped = false, hex;
                while ((ch = peek()) != null) {
                        if (!backslash) {
                                if (ch == "\\") escaped = backslash = true, next();
                                else if (is_identifier_char(ch)) name += next();
                                else break;
                        }
                        else {
                                if (ch != "u") parse_error("Expecting UnicodeEscapeSequence -- uXXXX");
                                ch = read_escaped_char();
                                if (!is_identifier_char(ch)) parse_error("Unicode char: " + ch.charCodeAt(0) + " is not valid in identifier");
                                name += ch;
                                backslash = false;
                        }
                }
                if (HOP(KEYWORDS, name) && escaped) {
                        hex = name.charCodeAt(0).toString(16).toUpperCase();
                        name = "\\u" + "0000".substr(hex.length) + hex + name.slice(1);
                }
                return name;
        };

        function read_regexp(regexp) {
                return with_eof_error("Unterminated regular expression", function(){
                        var prev_backslash = false, ch, in_class = false;
                        while ((ch = next(true))) if (prev_backslash) {
                                regexp += "\\" + ch;
                                prev_backslash = false;
                        } else if (ch == "[") {
                                in_class = true;
                                regexp += ch;
                        } else if (ch == "]" && in_class) {
                                in_class = false;
                                regexp += ch;
                        } else if (ch == "/" && !in_class) {
                                break;
                        } else if (ch == "\\") {
                                prev_backslash = true;
                        } else {
                                regexp += ch;
                        }
                        var mods = read_name();
                        return token("regexp", [ regexp, mods ]);
                });
        };

        function read_operator(prefix) {
                function grow(op) {
                        if (!peek()) return op;
                        var bigger = op + peek();
                        if (HOP(OPERATORS, bigger)) {
                                next();
                                return grow(bigger);
                        } else {
                                return op;
                        }
                };
                return token("operator", grow(prefix || next()));
        };

        function handle_slash() {
                next();
                var regex_allowed = S.regex_allowed;
                switch (peek()) {
                    case "/":
                        S.comments_before.push(read_line_comment());
                        S.regex_allowed = regex_allowed;
                        return next_token();
                    case "*":
                        S.comments_before.push(read_multiline_comment());
                        S.regex_allowed = regex_allowed;
                        return next_token();
                }
                return S.regex_allowed ? read_regexp("") : read_operator("/");
        };

        function handle_dot() {
                next();
                return is_digit(peek())
                        ? read_num(".")
                        : token("punc", ".");
        };

        function read_word() {
                var word = read_name();
                return !HOP(KEYWORDS, word)
                        ? token("name", word)
                        : HOP(OPERATORS, word)
                        ? token("operator", word)
                        : HOP(KEYWORDS_ATOM, word)
                        ? token("atom", word)
                        : token("keyword", word);
        };

        function with_eof_error(eof_error, cont) {
                try {
                        return cont();
                } catch(ex) {
                        if (ex === EX_EOF) parse_error(eof_error);
                        else throw ex;
                }
        };

        function next_token(force_regexp) {
                if (force_regexp != null)
                        return read_regexp(force_regexp);
                skip_whitespace();
                start_token();
                var ch = peek();
                if (!ch) return token("eof");
                if (is_digit(ch)) return read_num();
                if (ch == '"' || ch == "'") return read_string();
                if (HOP(PUNC_CHARS, ch)) return token("punc", next());
                if (ch == ".") return handle_dot();
                if (ch == "/") return handle_slash();
                if (HOP(OPERATOR_CHARS, ch)) return read_operator();
                if (ch == "\\" || is_identifier_start(ch)) return read_word();
                parse_error("Unexpected character '" + ch + "'");
        };

        next_token.context = function(nc) {
                if (nc) S = nc;
                return S;
        };

        return next_token;

};

/* -----[ Parser (constants) ]----- */

var UNARY_PREFIX = array_to_hash([
        "typeof",
        "void",
        "delete",
        "--",
        "++",
        "!",
        "~",
        "-",
        "+"
]);

var UNARY_POSTFIX = array_to_hash([ "--", "++" ]);

var ASSIGNMENT = (function(a, ret, i){
        while (i < a.length) {
                ret[a[i]] = a[i].substr(0, a[i].length - 1);
                i++;
        }
        return ret;
})(
        ["+=", "-=", "/=", "*=", "%=", ">>=", "<<=", ">>>=", "|=", "^=", "&="],
        { "=": true },
        0
);

var PRECEDENCE = (function(a, ret){
        for (var i = 0, n = 1; i < a.length; ++i, ++n) {
                var b = a[i];
                for (var j = 0; j < b.length; ++j) {
                        ret[b[j]] = n;
                }
        }
        return ret;
})(
        [
                ["||"],
                ["&&"],
                ["|"],
                ["^"],
                ["&"],
                ["==", "===", "!=", "!=="],
                ["<", ">", "<=", ">=", "in", "instanceof"],
                [">>", "<<", ">>>"],
                ["+", "-"],
                ["*", "/", "%"]
        ],
        {}
);

var STATEMENTS_WITH_LABELS = array_to_hash([ "for", "do", "while", "switch" ]);

var ATOMIC_START_TOKEN = array_to_hash([ "atom", "num", "string", "regexp", "name" ]);

/* -----[ Parser ]----- */

function NodeWithToken(str, start, end) {
        this.name = str;
        this.start = start;
        this.end = end;
};

NodeWithToken.prototype.toString = function() { return this.name; };

function parse($TEXT, exigent_mode, embed_tokens) {

        var S = {
                input       : typeof $TEXT == "string" ? tokenizer($TEXT, true) : $TEXT,
                token       : null,
                prev        : null,
                peeked      : null,
                in_function : 0,
                in_loop     : 0,
                labels      : []
        };

        S.token = next();

        function is(type, value) {
                return is_token(S.token, type, value);
        };

        function peek() { return S.peeked || (S.peeked = S.input()); };

        function next() {
                S.prev = S.token;
                if (S.peeked) {
                        S.token = S.peeked;
                        S.peeked = null;
                } else {
                        S.token = S.input();
                }
                return S.token;
        };

        function prev() {
                return S.prev;
        };

        function croak(msg, line, col, pos) {
                var ctx = S.input.context();
                js_error(msg,
                         line != null ? line : ctx.tokline,
                         col != null ? col : ctx.tokcol,
                         pos != null ? pos : ctx.tokpos);
        };

        function token_error(token, msg) {
                croak(msg, token.line, token.col);
        };

        function unexpected(token) {
                if (token == null)
                        token = S.token;
                token_error(token, "Unexpected token: " + token.type + " (" + token.value + ")");
        };

        function expect_token(type, val) {
                if (is(type, val)) {
                        return next();
                }
                token_error(S.token, "Unexpected token " + S.token.type + ", expected " + type);
        };

        function expect(punc) { return expect_token("punc", punc); };

        function can_insert_semicolon() {
                return !exigent_mode && (
                        S.token.nlb || is("eof") || is("punc", "}")
                );
        };

        function semicolon() {
                if (is("punc", ";")) next();
                else if (!can_insert_semicolon()) unexpected();
        };

        function as() {
                return slice(arguments);
        };

        function parenthesised() {
                expect("(");
                var ex = expression();
                expect(")");
                return ex;
        };

        function add_tokens(str, start, end) {
                return str instanceof NodeWithToken ? str : new NodeWithToken(str, start, end);
        };

        function maybe_embed_tokens(parser) {
                if (embed_tokens) return function() {
                        var start = S.token;
                        var ast = parser.apply(this, arguments);
                        ast[0] = add_tokens(ast[0], start, prev());
                        return ast;
                };
                else return parser;
        };

        var statement = maybe_embed_tokens(function() {
                if (is("operator", "/") || is("operator", "/=")) {
                        S.peeked = null;
                        S.token = S.input(S.token.value.substr(1)); // force regexp
                }
                switch (S.token.type) {
                    case "num":
                    case "string":
                    case "regexp":
                    case "operator":
                    case "atom":
                        return simple_statement();

                    case "name":
                        return is_token(peek(), "punc", ":")
                                ? labeled_statement(prog1(S.token.value, next, next))
                                : simple_statement();

                    case "punc":
                        switch (S.token.value) {
                            case "{":
                                return as("block", block_());
                            case "[":
                            case "(":
                                return simple_statement();
                            case ";":
                                next();
                                return as("block");
                            default:
                                unexpected();
                        }

                    case "keyword":
                        switch (prog1(S.token.value, next)) {
                            case "break":
                                return break_cont("break");

                            case "continue":
                                return break_cont("continue");

                            case "debugger":
                                semicolon();
                                return as("debugger");

                            case "do":
                                return (function(body){
                                        expect_token("keyword", "while");
                                        return as("do", prog1(parenthesised, semicolon), body);
                                })(in_loop(statement));

                            case "for":
                                return for_();

                            case "function":
                                return function_(true);

                            case "if":
                                return if_();

                            case "return":
                                if (S.in_function == 0)
                                        croak("'return' outside of function");
                                return as("return",
                                          is("punc", ";")
                                          ? (next(), null)
                                          : can_insert_semicolon()
                                          ? null
                                          : prog1(expression, semicolon));

                            case "switch":
                                return as("switch", parenthesised(), switch_block_());

                            case "throw":
                                if (S.token.nlb)
                                        croak("Illegal newline after 'throw'");
                                return as("throw", prog1(expression, semicolon));

                            case "try":
                                return try_();

                            case "var":
                                return prog1(var_, semicolon);

                            case "const":
                                return prog1(const_, semicolon);

                            case "while":
                                return as("while", parenthesised(), in_loop(statement));

                            case "with":
                                return as("with", parenthesised(), statement());

                            default:
                                unexpected();
                        }
                }
        });

        function labeled_statement(label) {
                S.labels.push(label);
                var start = S.token, stat = statement();
                if (exigent_mode && !HOP(STATEMENTS_WITH_LABELS, stat[0]))
                        unexpected(start);
                S.labels.pop();
                return as("label", label, stat);
        };

        function simple_statement() {
                return as("stat", prog1(expression, semicolon));
        };

        function break_cont(type) {
                var name;
                if (!can_insert_semicolon()) {
                        name = is("name") ? S.token.value : null;
                }
                if (name != null) {
                        next();
                        if (!member(name, S.labels))
                                croak("Label " + name + " without matching loop or statement");
                }
                else if (S.in_loop == 0)
                        croak(type + " not inside a loop or switch");
                semicolon();
                return as(type, name);
        };

        function for_() {
                expect("(");
                var init = null;
                if (!is("punc", ";")) {
                        init = is("keyword", "var")
                                ? (next(), var_(true))
                                : expression(true, true);
                        if (is("operator", "in")) {
                                if (init[0] == "var" && init[1].length > 1)
                                        croak("Only one variable declaration allowed in for..in loop");
                                return for_in(init);
                        }
                }
                return regular_for(init);
        };

        function regular_for(init) {
                expect(";");
                var test = is("punc", ";") ? null : expression();
                expect(";");
                var step = is("punc", ")") ? null : expression();
                expect(")");
                return as("for", init, test, step, in_loop(statement));
        };

        function for_in(init) {
                var lhs = init[0] == "var" ? as("name", init[1][0]) : init;
                next();
                var obj = expression();
                expect(")");
                return as("for-in", init, lhs, obj, in_loop(statement));
        };

        var function_ = function(in_statement) {
                var name = is("name") ? prog1(S.token.value, next) : null;
                if (in_statement && !name)
                        unexpected();
                expect("(");
                return as(in_statement ? "defun" : "function",
                          name,
                          // arguments
                          (function(first, a){
                                  while (!is("punc", ")")) {
                                          if (first) first = false; else expect(",");
                                          if (!is("name")) unexpected();
                                          a.push(S.token.value);
                                          next();
                                  }
                                  next();
                                  return a;
                          })(true, []),
                          // body
                          (function(){
                                  ++S.in_function;
                                  var loop = S.in_loop;
                                  S.in_loop = 0;
                                  var a = block_();
                                  --S.in_function;
                                  S.in_loop = loop;
                                  return a;
                          })());
        };

        function if_() {
                var cond = parenthesised(), body = statement(), belse;
                if (is("keyword", "else")) {
                        next();
                        belse = statement();
                }
                return as("if", cond, body, belse);
        };

        function block_() {
                expect("{");
                var a = [];
                while (!is("punc", "}")) {
                        if (is("eof")) unexpected();
                        a.push(statement());
                }
                next();
                return a;
        };

        var switch_block_ = curry(in_loop, function(){
                expect("{");
                var a = [], cur = null;
                while (!is("punc", "}")) {
                        if (is("eof")) unexpected();
                        if (is("keyword", "case")) {
                                next();
                                cur = [];
                                a.push([ expression(), cur ]);
                                expect(":");
                        }
                        else if (is("keyword", "default")) {
                                next();
                                expect(":");
                                cur = [];
                                a.push([ null, cur ]);
                        }
                        else {
                                if (!cur) unexpected();
                                cur.push(statement());
                        }
                }
                next();
                return a;
        });

        function try_() {
                var body = block_(), bcatch, bfinally;
                if (is("keyword", "catch")) {
                        next();
                        expect("(");
                        if (!is("name"))
                                croak("Name expected");
                        var name = S.token.value;
                        next();
                        expect(")");
                        bcatch = [ name, block_() ];
                }
                if (is("keyword", "finally")) {
                        next();
                        bfinally = block_();
                }
                if (!bcatch && !bfinally)
                        croak("Missing catch/finally blocks");
                return as("try", body, bcatch, bfinally);
        };

        function vardefs(no_in) {
                var a = [];
                for (;;) {
                        if (!is("name"))
                                unexpected();
                        var name = S.token.value;
                        next();
                        if (is("operator", "=")) {
                                next();
                                a.push([ name, expression(false, no_in) ]);
                        } else {
                                a.push([ name ]);
                        }
                        if (!is("punc", ","))
                                break;
                        next();
                }
                return a;
        };

        function var_(no_in) {
                return as("var", vardefs(no_in));
        };

        function const_() {
                return as("const", vardefs());
        };

        function new_() {
                var newexp = expr_atom(false), args;
                if (is("punc", "(")) {
                        next();
                        args = expr_list(")");
                } else {
                        args = [];
                }
                return subscripts(as("new", newexp, args), true);
        };

        var expr_atom = maybe_embed_tokens(function(allow_calls) {
                if (is("operator", "new")) {
                        next();
                        return new_();
                }
                if (is("punc")) {
                        switch (S.token.value) {
                            case "(":
                                next();
                                return subscripts(prog1(expression, curry(expect, ")")), allow_calls);
                            case "[":
                                next();
                                return subscripts(array_(), allow_calls);
                            case "{":
                                next();
                                return subscripts(object_(), allow_calls);
                        }
                        unexpected();
                }
                if (is("keyword", "function")) {
                        next();
                        return subscripts(function_(false), allow_calls);
                }
                if (HOP(ATOMIC_START_TOKEN, S.token.type)) {
                        var atom = S.token.type == "regexp"
                                ? as("regexp", S.token.value[0], S.token.value[1])
                                : as(S.token.type, S.token.value);
                        return subscripts(prog1(atom, next), allow_calls);
                }
                unexpected();
        });

        function expr_list(closing, allow_trailing_comma, allow_empty) {
                var first = true, a = [];
                while (!is("punc", closing)) {
                        if (first) first = false; else expect(",");
                        if (allow_trailing_comma && is("punc", closing)) break;
                        if (is("punc", ",") && allow_empty) {
                                a.push([ "atom", "undefined" ]);
                        } else {
                                a.push(expression(false));
                        }
                }
                next();
                return a;
        };

        function array_() {
                return as("array", expr_list("]", !exigent_mode, true));
        };

        function object_() {
                var first = true, a = [];
                while (!is("punc", "}")) {
                        if (first) first = false; else expect(",");
                        if (!exigent_mode && is("punc", "}"))
                                // allow trailing comma
                                break;
                        var type = S.token.type;
                        var name = as_property_name();
                        if (type == "name" && (name == "get" || name == "set") && !is("punc", ":")) {
                                a.push([ as_name(), function_(false), name ]);
                        } else {
                                expect(":");
                                a.push([ name, expression(false) ]);
                        }
                }
                next();
                return as("object", a);
        };

        function as_property_name() {
                switch (S.token.type) {
                    case "num":
                    case "string":
                        return prog1(S.token.value, next);
                }
                return as_name();
        };

        function as_name() {
                switch (S.token.type) {
                    case "name":
                    case "operator":
                    case "keyword":
                    case "atom":
                        return prog1(S.token.value, next);
                    default:
                        unexpected();
                }
        };

        function subscripts(expr, allow_calls) {
                if (is("punc", ".")) {
                        next();
                        return subscripts(as("dot", expr, as_name()), allow_calls);
                }
                if (is("punc", "[")) {
                        next();
                        return subscripts(as("sub", expr, prog1(expression, curry(expect, "]"))), allow_calls);
                }
                if (allow_calls && is("punc", "(")) {
                        next();
                        return subscripts(as("call", expr, expr_list(")")), true);
                }
                return expr;
        };

        function maybe_unary(allow_calls) {
                if (is("operator") && HOP(UNARY_PREFIX, S.token.value)) {
                        return make_unary("unary-prefix",
                                          prog1(S.token.value, next),
                                          maybe_unary(allow_calls));
                }
                var val = expr_atom(allow_calls);
                while (is("operator") && HOP(UNARY_POSTFIX, S.token.value) && !S.token.nlb) {
                        val = make_unary("unary-postfix", S.token.value, val);
                        next();
                }
                return val;
        };

        function make_unary(tag, op, expr) {
                if ((op == "++" || op == "--") && !is_assignable(expr))
                        croak("Invalid use of " + op + " operator");
                return as(tag, op, expr);
        };

        function expr_op(left, min_prec, no_in) {
                var op = is("operator") ? S.token.value : null;
                if (op && op == "in" && no_in) op = null;
                var prec = op != null ? PRECEDENCE[op] : null;
                if (prec != null && prec > min_prec) {
                        next();
                        var right = expr_op(maybe_unary(true), prec, no_in);
                        return expr_op(as("binary", op, left, right), min_prec, no_in);
                }
                return left;
        };

        function expr_ops(no_in) {
                return expr_op(maybe_unary(true), 0, no_in);
        };

        function maybe_conditional(no_in) {
                var expr = expr_ops(no_in);
                if (is("operator", "?")) {
                        next();
                        var yes = expression(false);
                        expect(":");
                        return as("conditional", expr, yes, expression(false, no_in));
                }
                return expr;
        };

        function is_assignable(expr) {
                if (!exigent_mode) return true;
                switch (expr[0]+"") {
                    case "dot":
                    case "sub":
                    case "new":
                    case "call":
                        return true;
                    case "name":
                        return expr[1] != "this";
                }
        };

        function maybe_assign(no_in) {
                var left = maybe_conditional(no_in), val = S.token.value;
                if (is("operator") && HOP(ASSIGNMENT, val)) {
                        if (is_assignable(left)) {
                                next();
                                return as("assign", ASSIGNMENT[val], left, maybe_assign(no_in));
                        }
                        croak("Invalid assignment");
                }
                return left;
        };

        var expression = maybe_embed_tokens(function(commas, no_in) {
                if (arguments.length == 0)
                        commas = true;
                var expr = maybe_assign(no_in);
                if (commas && is("punc", ",")) {
                        next();
                        return as("seq", expr, expression(true, no_in));
                }
                return expr;
        });

        function in_loop(cont) {
                try {
                        ++S.in_loop;
                        return cont();
                } finally {
                        --S.in_loop;
                }
        };

        return as("toplevel", (function(a){
                while (!is("eof"))
                        a.push(statement());
                return a;
        })([]));

};

/* -----[ Utilities ]----- */

function curry(f) {
        var args = slice(arguments, 1);
        return function() { return f.apply(this, args.concat(slice(arguments))); };
};

function prog1(ret) {
        if (ret instanceof Function)
                ret = ret();
        for (var i = 1, n = arguments.length; --n > 0; ++i)
                arguments[i]();
        return ret;
};

function array_to_hash(a) {
        var ret = {};
        for (var i = 0; i < a.length; ++i)
                ret[a[i]] = true;
        return ret;
};

function slice(a, start) {
        return Array.prototype.slice.call(a, start || 0);
};

function characters(str) {
        return str.split("");
};

function member(name, array) {
        for (var i = array.length; --i >= 0;)
                if (array[i] == name)
                        return true;
        return false;
};

function HOP(obj, prop) {
        return Object.prototype.hasOwnProperty.call(obj, prop);
};

var warn = function() {};

/* -----[ Exports ]----- */

exports.tokenizer = tokenizer;
exports.parse = parse;
exports.slice = slice;
exports.curry = curry;
exports.member = member;
exports.array_to_hash = array_to_hash;
exports.PRECEDENCE = PRECEDENCE;
exports.KEYWORDS_ATOM = KEYWORDS_ATOM;
exports.RESERVED_WORDS = RESERVED_WORDS;
exports.KEYWORDS = KEYWORDS;
exports.ATOMIC_START_TOKEN = ATOMIC_START_TOKEN;
exports.OPERATORS = OPERATORS;
exports.is_alphanumeric_char = is_alphanumeric_char;
exports.set_logger = function(logger) {
        warn = logger;
};

});
define('uglifyjs/squeeze-more', ["require", "exports", "module", "./parse-js", "./process"], function(require, exports, module) {

var jsp = require("./parse-js"),
    pro = require("./process"),
    slice = jsp.slice,
    member = jsp.member,
    curry = jsp.curry,
    MAP = pro.MAP,
    PRECEDENCE = jsp.PRECEDENCE,
    OPERATORS = jsp.OPERATORS;

function ast_squeeze_more(ast) {
        var w = pro.ast_walker(), walk = w.walk, scope;
        function with_scope(s, cont) {
                var save = scope, ret;
                scope = s;
                ret = cont();
                scope = save;
                return ret;
        };
        function _lambda(name, args, body) {
                return [ this[0], name, args, with_scope(body.scope, curry(MAP, body, walk)) ];
        };
        return w.with_walkers({
                "toplevel": function(body) {
                        return [ this[0], with_scope(this.scope, curry(MAP, body, walk)) ];
                },
                "function": _lambda,
                "defun": _lambda,
                "new": function(ctor, args) {
                        if (ctor[0] == "name") {
                                if (ctor[1] == "Array" && !scope.has("Array")) {
                                        if (args.length != 1) {
                                                return [ "array", args ];
                                        } else {
                                                return walk([ "call", [ "name", "Array" ], args ]);
                                        }
                                } else if (ctor[1] == "Object" && !scope.has("Object")) {
                                        if (!args.length) {
                                                return [ "object", [] ];
                                        } else {
                                                return walk([ "call", [ "name", "Object" ], args ]);
                                        }
                                } else if ((ctor[1] == "RegExp" || ctor[1] == "Function" || ctor[1] == "Error") && !scope.has(ctor[1])) {
                                        return walk([ "call", [ "name", ctor[1] ], args]);
                                }
                        }
                },
                "call": function(expr, args) {
                        if (expr[0] == "dot" && expr[1][0] == "string" && args.length == 1
                            && (args[0][1] > 0 && expr[2] == "substring" || expr[2] == "substr")) {
                                return [ "call", [ "dot", expr[1], "slice"], args];
                        }
                        if (expr[0] == "dot" && expr[2] == "toString" && args.length == 0) {
                                // foo.toString()  ==>  foo+""
                                return [ "binary", "+", expr[1], [ "string", "" ]];
                        }
                        if (expr[0] == "name") {
                                if (expr[1] == "Array" && args.length != 1 && !scope.has("Array")) {
                                        return [ "array", args ];
                                }
                                if (expr[1] == "Object" && !args.length && !scope.has("Object")) {
                                        return [ "object", [] ];
                                }
                                if (expr[1] == "String" && !scope.has("String")) {
                                        return [ "binary", "+", args[0], [ "string", "" ]];
                                }
                        }
                }
        }, function() {
                return walk(pro.ast_add_scope(ast));
        });
};

exports.ast_squeeze_more = ast_squeeze_more;

});define('uglifyjs/process', ["require", "exports", "module", "./parse-js", "./squeeze-more"], function(require, exports, module) {

/***********************************************************************

  A JavaScript tokenizer / parser / beautifier / compressor.

  This version is suitable for Node.js.  With minimal changes (the
  exports stuff) it should work on any JS platform.

  This file implements some AST processors.  They work on data built
  by parse-js.

  Exported functions:

    - ast_mangle(ast, options) -- mangles the variable/function names
      in the AST.  Returns an AST.

    - ast_squeeze(ast) -- employs various optimizations to make the
      final generated code even smaller.  Returns an AST.

    - gen_code(ast, options) -- generates JS code from the AST.  Pass
      true (or an object, see the code for some options) as second
      argument to get "pretty" (indented) code.

  -------------------------------- (C) ---------------------------------

                           Author: Mihai Bazon
                         <mihai.bazon@gmail.com>
                       http://mihai.bazon.net/blog

  Distributed under the BSD license:

    Copyright 2010 (c) Mihai Bazon <mihai.bazon@gmail.com>

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

        * Redistributions of source code must retain the above
          copyright notice, this list of conditions and the following
          disclaimer.

        * Redistributions in binary form must reproduce the above
          copyright notice, this list of conditions and the following
          disclaimer in the documentation and/or other materials
          provided with the distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
    THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    SUCH DAMAGE.

 ***********************************************************************/

var jsp = require("./parse-js"),
    slice = jsp.slice,
    member = jsp.member,
    PRECEDENCE = jsp.PRECEDENCE,
    OPERATORS = jsp.OPERATORS;

/* -----[ helper for AST traversal ]----- */

function ast_walker() {
        function _vardefs(defs) {
                return [ this[0], MAP(defs, function(def){
                        var a = [ def[0] ];
                        if (def.length > 1)
                                a[1] = walk(def[1]);
                        return a;
                }) ];
        };
        function _block(statements) {
                var out = [ this[0] ];
                if (statements != null)
                        out.push(MAP(statements, walk));
                return out;
        };
        var walkers = {
                "string": function(str) {
                        return [ this[0], str ];
                },
                "num": function(num) {
                        return [ this[0], num ];
                },
                "name": function(name) {
                        return [ this[0], name ];
                },
                "toplevel": function(statements) {
                        return [ this[0], MAP(statements, walk) ];
                },
                "block": _block,
                "splice": _block,
                "var": _vardefs,
                "const": _vardefs,
                "try": function(t, c, f) {
                        return [
                                this[0],
                                MAP(t, walk),
                                c != null ? [ c[0], MAP(c[1], walk) ] : null,
                                f != null ? MAP(f, walk) : null
                        ];
                },
                "throw": function(expr) {
                        return [ this[0], walk(expr) ];
                },
                "new": function(ctor, args) {
                        return [ this[0], walk(ctor), MAP(args, walk) ];
                },
                "switch": function(expr, body) {
                        return [ this[0], walk(expr), MAP(body, function(branch){
                                return [ branch[0] ? walk(branch[0]) : null,
                                         MAP(branch[1], walk) ];
                        }) ];
                },
                "break": function(label) {
                        return [ this[0], label ];
                },
                "continue": function(label) {
                        return [ this[0], label ];
                },
                "conditional": function(cond, t, e) {
                        return [ this[0], walk(cond), walk(t), walk(e) ];
                },
                "assign": function(op, lvalue, rvalue) {
                        return [ this[0], op, walk(lvalue), walk(rvalue) ];
                },
                "dot": function(expr) {
                        return [ this[0], walk(expr) ].concat(slice(arguments, 1));
                },
                "call": function(expr, args) {
                        return [ this[0], walk(expr), MAP(args, walk) ];
                },
                "function": function(name, args, body) {
                        return [ this[0], name, args.slice(), MAP(body, walk) ];
                },
                "debugger": function() {
                        return [ this[0] ];
                },
                "defun": function(name, args, body) {
                        return [ this[0], name, args.slice(), MAP(body, walk) ];
                },
                "if": function(conditional, t, e) {
                        return [ this[0], walk(conditional), walk(t), walk(e) ];
                },
                "for": function(init, cond, step, block) {
                        return [ this[0], walk(init), walk(cond), walk(step), walk(block) ];
                },
                "for-in": function(vvar, key, hash, block) {
                        return [ this[0], walk(vvar), walk(key), walk(hash), walk(block) ];
                },
                "while": function(cond, block) {
                        return [ this[0], walk(cond), walk(block) ];
                },
                "do": function(cond, block) {
                        return [ this[0], walk(cond), walk(block) ];
                },
                "return": function(expr) {
                        return [ this[0], walk(expr) ];
                },
                "binary": function(op, left, right) {
                        return [ this[0], op, walk(left), walk(right) ];
                },
                "unary-prefix": function(op, expr) {
                        return [ this[0], op, walk(expr) ];
                },
                "unary-postfix": function(op, expr) {
                        return [ this[0], op, walk(expr) ];
                },
                "sub": function(expr, subscript) {
                        return [ this[0], walk(expr), walk(subscript) ];
                },
                "object": function(props) {
                        return [ this[0], MAP(props, function(p){
                                return p.length == 2
                                        ? [ p[0], walk(p[1]) ]
                                        : [ p[0], walk(p[1]), p[2] ]; // get/set-ter
                        }) ];
                },
                "regexp": function(rx, mods) {
                        return [ this[0], rx, mods ];
                },
                "array": function(elements) {
                        return [ this[0], MAP(elements, walk) ];
                },
                "stat": function(stat) {
                        return [ this[0], walk(stat) ];
                },
                "seq": function() {
                        return [ this[0] ].concat(MAP(slice(arguments), walk));
                },
                "label": function(name, block) {
                        return [ this[0], name, walk(block) ];
                },
                "with": function(expr, block) {
                        return [ this[0], walk(expr), walk(block) ];
                },
                "atom": function(name) {
                        return [ this[0], name ];
                }
        };

        var user = {};
        var stack = [];
        function walk(ast) {
                if (ast == null)
                        return null;
                try {
                        stack.push(ast);
                        var type = ast[0];
                        var gen = user[type];
                        if (gen) {
                                var ret = gen.apply(ast, ast.slice(1));
                                if (ret != null)
                                        return ret;
                        }
                        gen = walkers[type];
                        return gen.apply(ast, ast.slice(1));
                } finally {
                        stack.pop();
                }
        };

        function dive(ast) {
                if (ast == null)
                        return null;
                try {
                        stack.push(ast);
                        return walkers[ast[0]].apply(ast, ast.slice(1));
                } finally {
                        stack.pop();
                }
        };

        function with_walkers(walkers, cont){
                var save = {}, i;
                for (i in walkers) if (HOP(walkers, i)) {
                        save[i] = user[i];
                        user[i] = walkers[i];
                }
                var ret = cont();
                for (i in save) if (HOP(save, i)) {
                        if (!save[i]) delete user[i];
                        else user[i] = save[i];
                }
                return ret;
        };

        return {
                walk: walk,
                dive: dive,
                with_walkers: with_walkers,
                parent: function() {
                        return stack[stack.length - 2]; // last one is current node
                },
                stack: function() {
                        return stack;
                }
        };
};

/* -----[ Scope and mangling ]----- */

function Scope(parent) {
        this.names = {};        // names defined in this scope
        this.mangled = {};      // mangled names (orig.name => mangled)
        this.rev_mangled = {};  // reverse lookup (mangled => orig.name)
        this.cname = -1;        // current mangled name
        this.refs = {};         // names referenced from this scope
        this.uses_with = false; // will become TRUE if with() is detected in this or any subscopes
        this.uses_eval = false; // will become TRUE if eval() is detected in this or any subscopes
        this.parent = parent;   // parent scope
        this.children = [];     // sub-scopes
        if (parent) {
                this.level = parent.level + 1;
                parent.children.push(this);
        } else {
                this.level = 0;
        }
};

var base54 = (function(){
        var DIGITS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_0123456789";
        return function(num) {
                var ret = "", base = 54;
                do {
                        ret += DIGITS.charAt(num % base);
                        num = Math.floor(num / base);
                        base = 64;
                } while (num > 0);
                return ret;
        };
})();

Scope.prototype = {
        has: function(name) {
                for (var s = this; s; s = s.parent)
                        if (HOP(s.names, name))
                                return s;
        },
        has_mangled: function(mname) {
                for (var s = this; s; s = s.parent)
                        if (HOP(s.rev_mangled, mname))
                                return s;
        },
        toJSON: function() {
                return {
                        names: this.names,
                        uses_eval: this.uses_eval,
                        uses_with: this.uses_with
                };
        },

        next_mangled: function() {
                // we must be careful that the new mangled name:
                //
                // 1. doesn't shadow a mangled name from a parent
                //    scope, unless we don't reference the original
                //    name from this scope OR from any sub-scopes!
                //    This will get slow.
                //
                // 2. doesn't shadow an original name from a parent
                //    scope, in the event that the name is not mangled
                //    in the parent scope and we reference that name
                //    here OR IN ANY SUBSCOPES!
                //
                // 3. doesn't shadow a name that is referenced but not
                //    defined (possibly global defined elsewhere).
                for (;;) {
                        var m = base54(++this.cname), prior;

                        // case 1.
                        prior = this.has_mangled(m);
                        if (prior && this.refs[prior.rev_mangled[m]] === prior)
                                continue;

                        // case 2.
                        prior = this.has(m);
                        if (prior && prior !== this && this.refs[m] === prior && !prior.has_mangled(m))
                                continue;

                        // case 3.
                        if (HOP(this.refs, m) && this.refs[m] == null)
                                continue;

                        // I got "do" once. :-/
                        if (!is_identifier(m))
                                continue;

                        return m;
                }
        },
        set_mangle: function(name, m) {
                this.rev_mangled[m] = name;
                return this.mangled[name] = m;
        },
        get_mangled: function(name, newMangle) {
                if (this.uses_eval || this.uses_with) return name; // no mangle if eval or with is in use
                var s = this.has(name);
                if (!s) return name; // not in visible scope, no mangle
                if (HOP(s.mangled, name)) return s.mangled[name]; // already mangled in this scope
                if (!newMangle) return name;                      // not found and no mangling requested
                return s.set_mangle(name, s.next_mangled());
        },
        references: function(name) {
                return name && !this.parent || this.uses_with || this.uses_eval || this.refs[name];
        },
        define: function(name, type) {
                if (name != null) {
                        if (type == "var" || !HOP(this.names, name))
                                this.names[name] = type || "var";
                        return name;
                }
        }
};

function ast_add_scope(ast) {

        var current_scope = null;
        var w = ast_walker(), walk = w.walk;
        var having_eval = [];

        function with_new_scope(cont) {
                current_scope = new Scope(current_scope);
                current_scope.labels = new Scope();
                var ret = current_scope.body = cont();
                ret.scope = current_scope;
                current_scope = current_scope.parent;
                return ret;
        };

        function define(name, type) {
                return current_scope.define(name, type);
        };

        function reference(name) {
                current_scope.refs[name] = true;
        };

        function _lambda(name, args, body) {
                var is_defun = this[0] == "defun";
                return [ this[0], is_defun ? define(name, "defun") : name, args, with_new_scope(function(){
                        if (!is_defun) define(name, "lambda");
                        MAP(args, function(name){ define(name, "arg") });
                        return MAP(body, walk);
                })];
        };

        function _vardefs(type) {
                return function(defs) {
                        MAP(defs, function(d){
                                define(d[0], type);
                                if (d[1]) reference(d[0]);
                        });
                };
        };

        function _breacont(label) {
                if (label)
                        current_scope.labels.refs[label] = true;
        };

        return with_new_scope(function(){
                // process AST
                var ret = w.with_walkers({
                        "function": _lambda,
                        "defun": _lambda,
                        "label": function(name, stat) { current_scope.labels.define(name) },
                        "break": _breacont,
                        "continue": _breacont,
                        "with": function(expr, block) {
                                for (var s = current_scope; s; s = s.parent)
                                        s.uses_with = true;
                        },
                        "var": _vardefs("var"),
                        "const": _vardefs("const"),
                        "try": function(t, c, f) {
                                if (c != null) return [
                                        this[0],
                                        MAP(t, walk),
                                        [ define(c[0], "catch"), MAP(c[1], walk) ],
                                        f != null ? MAP(f, walk) : null
                                ];
                        },
                        "name": function(name) {
                                if (name == "eval")
                                        having_eval.push(current_scope);
                                reference(name);
                        }
                }, function(){
                        return walk(ast);
                });

                // the reason why we need an additional pass here is
                // that names can be used prior to their definition.

                // scopes where eval was detected and their parents
                // are marked with uses_eval, unless they define the
                // "eval" name.
                MAP(having_eval, function(scope){
                        if (!scope.has("eval")) while (scope) {
                                scope.uses_eval = true;
                                scope = scope.parent;
                        }
                });

                // for referenced names it might be useful to know
                // their origin scope.  current_scope here is the
                // toplevel one.
                function fixrefs(scope, i) {
                        // do children first; order shouldn't matter
                        for (i = scope.children.length; --i >= 0;)
                                fixrefs(scope.children[i]);
                        for (i in scope.refs) if (HOP(scope.refs, i)) {
                                // find origin scope and propagate the reference to origin
                                for (var origin = scope.has(i), s = scope; s; s = s.parent) {
                                        s.refs[i] = origin;
                                        if (s === origin) break;
                                }
                        }
                };
                fixrefs(current_scope);

                return ret;
        });

};

/* -----[ mangle names ]----- */

function ast_mangle(ast, options) {
        var w = ast_walker(), walk = w.walk, scope;
        options = options || {};

        function get_mangled(name, newMangle) {
                if (!options.toplevel && !scope.parent) return name; // don't mangle toplevel
                if (options.except && member(name, options.except))
                        return name;
                return scope.get_mangled(name, newMangle);
        };

        function get_define(name) {
                if (options.defines) {
                        // we always lookup a defined symbol for the current scope FIRST, so declared
                        // vars trump a DEFINE symbol, but if no such var is found, then match a DEFINE value
                        if (!scope.has(name)) {
                                if (HOP(options.defines, name)) {
                                        return options.defines[name];
                                }
                        }
                        return null;
                }
        };

        function _lambda(name, args, body) {
                if (!options.no_functions) {
                        var is_defun = this[0] == "defun", extra;
                        if (name) {
                                if (is_defun) name = get_mangled(name);
                                else if (body.scope.references(name)) {
                                        extra = {};
                                        if (!(scope.uses_eval || scope.uses_with))
                                                name = extra[name] = scope.next_mangled();
                                        else
                                                extra[name] = name;
                                }
                                else name = null;
                        }
                }
                body = with_scope(body.scope, function(){
                        args = MAP(args, function(name){ return get_mangled(name) });
                        return MAP(body, walk);
                }, extra);
                return [ this[0], name, args, body ];
        };

        function with_scope(s, cont, extra) {
                var _scope = scope;
                scope = s;
                if (extra) for (var i in extra) if (HOP(extra, i)) {
                        s.set_mangle(i, extra[i]);
                }
                for (var i in s.names) if (HOP(s.names, i)) {
                        get_mangled(i, true);
                }
                var ret = cont();
                ret.scope = s;
                scope = _scope;
                return ret;
        };

        function _vardefs(defs) {
                return [ this[0], MAP(defs, function(d){
                        return [ get_mangled(d[0]), walk(d[1]) ];
                }) ];
        };

        function _breacont(label) {
                if (label) return [ this[0], scope.labels.get_mangled(label) ];
        };

        return w.with_walkers({
                "function": _lambda,
                "defun": function() {
                        // move function declarations to the top when
                        // they are not in some block.
                        var ast = _lambda.apply(this, arguments);
                        switch (w.parent()[0]) {
                            case "toplevel":
                            case "function":
                            case "defun":
                                return MAP.at_top(ast);
                        }
                        return ast;
                },
                "label": function(label, stat) {
                        if (scope.labels.refs[label]) return [
                                this[0],
                                scope.labels.get_mangled(label, true),
                                walk(stat)
                        ];
                        return walk(stat);
                },
                "break": _breacont,
                "continue": _breacont,
                "var": _vardefs,
                "const": _vardefs,
                "name": function(name) {
                        return get_define(name) || [ this[0], get_mangled(name) ];
                },
                "try": function(t, c, f) {
                        return [ this[0],
                                 MAP(t, walk),
                                 c != null ? [ get_mangled(c[0]), MAP(c[1], walk) ] : null,
                                 f != null ? MAP(f, walk) : null ];
                },
                "toplevel": function(body) {
                        var self = this;
                        return with_scope(self.scope, function(){
                                return [ self[0], MAP(body, walk) ];
                        });
                }
        }, function() {
                return walk(ast_add_scope(ast));
        });
};

/* -----[
   - compress foo["bar"] into foo.bar,
   - remove block brackets {} where possible
   - join consecutive var declarations
   - various optimizations for IFs:
     - if (cond) foo(); else bar();  ==>  cond?foo():bar();
     - if (cond) foo();  ==>  cond&&foo();
     - if (foo) return bar(); else return baz();  ==> return foo?bar():baz(); // also for throw
     - if (foo) return bar(); else something();  ==> {if(foo)return bar();something()}
   ]----- */

var warn = function(){};

function best_of(ast1, ast2) {
        return gen_code(ast1).length > gen_code(ast2[0] == "stat" ? ast2[1] : ast2).length ? ast2 : ast1;
};

function last_stat(b) {
        if (b[0] == "block" && b[1] && b[1].length > 0)
                return b[1][b[1].length - 1];
        return b;
}

function aborts(t) {
        if (t) switch (last_stat(t)[0]) {
            case "return":
            case "break":
            case "continue":
            case "throw":
                return true;
        }
};

function boolean_expr(expr) {
        return ( (expr[0] == "unary-prefix"
                  && member(expr[1], [ "!", "delete" ])) ||

                 (expr[0] == "binary"
                  && member(expr[1], [ "in", "instanceof", "==", "!=", "===", "!==", "<", "<=", ">=", ">" ])) ||

                 (expr[0] == "binary"
                  && member(expr[1], [ "&&", "||" ])
                  && boolean_expr(expr[2])
                  && boolean_expr(expr[3])) ||

                 (expr[0] == "conditional"
                  && boolean_expr(expr[2])
                  && boolean_expr(expr[3])) ||

                 (expr[0] == "assign"
                  && expr[1] === true
                  && boolean_expr(expr[3])) ||

                 (expr[0] == "seq"
                  && boolean_expr(expr[expr.length - 1]))
               );
};

function empty(b) {
        return !b || (b[0] == "block" && (!b[1] || b[1].length == 0));
};

function is_string(node) {
        return (node[0] == "string" ||
                node[0] == "unary-prefix" && node[1] == "typeof" ||
                node[0] == "binary" && node[1] == "+" &&
                (is_string(node[2]) || is_string(node[3])));
};

var when_constant = (function(){

        var $NOT_CONSTANT = {};

        // this can only evaluate constant expressions.  If it finds anything
        // not constant, it throws $NOT_CONSTANT.
        function evaluate(expr) {
                switch (expr[0]) {
                    case "string":
                    case "num":
                        return expr[1];
                    case "name":
                    case "atom":
                        switch (expr[1]) {
                            case "true": return true;
                            case "false": return false;
                            case "null": return null;
                        }
                        break;
                    case "unary-prefix":
                        switch (expr[1]) {
                            case "!": return !evaluate(expr[2]);
                            case "typeof": return typeof evaluate(expr[2]);
                            case "~": return ~evaluate(expr[2]);
                            case "-": return -evaluate(expr[2]);
                            case "+": return +evaluate(expr[2]);
                        }
                        break;
                    case "binary":
                        var left = expr[2], right = expr[3];
                        switch (expr[1]) {
                            case "&&"         : return evaluate(left) &&         evaluate(right);
                            case "||"         : return evaluate(left) ||         evaluate(right);
                            case "|"          : return evaluate(left) |          evaluate(right);
                            case "&"          : return evaluate(left) &          evaluate(right);
                            case "^"          : return evaluate(left) ^          evaluate(right);
                            case "+"          : return evaluate(left) +          evaluate(right);
                            case "*"          : return evaluate(left) *          evaluate(right);
                            case "/"          : return evaluate(left) /          evaluate(right);
                            case "%"          : return evaluate(left) %          evaluate(right);
                            case "-"          : return evaluate(left) -          evaluate(right);
                            case "<<"         : return evaluate(left) <<         evaluate(right);
                            case ">>"         : return evaluate(left) >>         evaluate(right);
                            case ">>>"        : return evaluate(left) >>>        evaluate(right);
                            case "=="         : return evaluate(left) ==         evaluate(right);
                            case "==="        : return evaluate(left) ===        evaluate(right);
                            case "!="         : return evaluate(left) !=         evaluate(right);
                            case "!=="        : return evaluate(left) !==        evaluate(right);
                            case "<"          : return evaluate(left) <          evaluate(right);
                            case "<="         : return evaluate(left) <=         evaluate(right);
                            case ">"          : return evaluate(left) >          evaluate(right);
                            case ">="         : return evaluate(left) >=         evaluate(right);
                            case "in"         : return evaluate(left) in         evaluate(right);
                            case "instanceof" : return evaluate(left) instanceof evaluate(right);
                        }
                }
                throw $NOT_CONSTANT;
        };

        return function(expr, yes, no) {
                try {
                        var val = evaluate(expr), ast;
                        switch (typeof val) {
                            case "string": ast =  [ "string", val ]; break;
                            case "number": ast =  [ "num", val ]; break;
                            case "boolean": ast =  [ "name", String(val) ]; break;
                            default:
                                if (val === null) { ast = [ "atom", "null" ]; break; }
                                throw new Error("Can't handle constant of type: " + (typeof val));
                        }
                        return yes.call(expr, ast, val);
                } catch(ex) {
                        if (ex === $NOT_CONSTANT) {
                                if (expr[0] == "binary"
                                    && (expr[1] == "===" || expr[1] == "!==")
                                    && ((is_string(expr[2]) && is_string(expr[3]))
                                        || (boolean_expr(expr[2]) && boolean_expr(expr[3])))) {
                                        expr[1] = expr[1].substr(0, 2);
                                }
                                else if (no && expr[0] == "binary"
                                         && (expr[1] == "||" || expr[1] == "&&")) {
                                    // the whole expression is not constant but the lval may be...
                                    try {
                                        var lval = evaluate(expr[2]);
                                        expr = ((expr[1] == "&&" && (lval ? expr[3] : lval))    ||
                                                (expr[1] == "||" && (lval ? lval    : expr[3])) ||
                                                expr);
                                    } catch(ex2) {
                                        // IGNORE... lval is not constant
                                    }
                                }
                                return no ? no.call(expr, expr) : null;
                        }
                        else throw ex;
                }
        };

})();

function warn_unreachable(ast) {
        if (!empty(ast))
                warn("Dropping unreachable code: " + gen_code(ast, true));
};

function prepare_ifs(ast) {
        var w = ast_walker(), walk = w.walk;
        // In this first pass, we rewrite ifs which abort with no else with an
        // if-else.  For example:
        //
        // if (x) {
        //     blah();
        //     return y;
        // }
        // foobar();
        //
        // is rewritten into:
        //
        // if (x) {
        //     blah();
        //     return y;
        // } else {
        //     foobar();
        // }
        function redo_if(statements) {
                statements = MAP(statements, walk);

                for (var i = 0; i < statements.length; ++i) {
                        var fi = statements[i];
                        if (fi[0] != "if") continue;

                        if (fi[3] && walk(fi[3])) continue;

                        var t = walk(fi[2]);
                        if (!aborts(t)) continue;

                        var conditional = walk(fi[1]);

                        var e_body = redo_if(statements.slice(i + 1));
                        var e = e_body.length == 1 ? e_body[0] : [ "block", e_body ];

                        return statements.slice(0, i).concat([ [
                                fi[0],          // "if"
                                conditional,    // conditional
                                t,              // then
                                e               // else
                        ] ]);
                }

                return statements;
        };

        function redo_if_lambda(name, args, body) {
                body = redo_if(body);
                return [ this[0], name, args, body ];
        };

        function redo_if_block(statements) {
                return [ this[0], statements != null ? redo_if(statements) : null ];
        };

        return w.with_walkers({
                "defun": redo_if_lambda,
                "function": redo_if_lambda,
                "block": redo_if_block,
                "splice": redo_if_block,
                "toplevel": function(statements) {
                        return [ this[0], redo_if(statements) ];
                },
                "try": function(t, c, f) {
                        return [
                                this[0],
                                redo_if(t),
                                c != null ? [ c[0], redo_if(c[1]) ] : null,
                                f != null ? redo_if(f) : null
                        ];
                }
        }, function() {
                return walk(ast);
        });
};

function for_side_effects(ast, handler) {
        var w = ast_walker(), walk = w.walk;
        var $stop = {}, $restart = {};
        function stop() { throw $stop };
        function restart() { throw $restart };
        function found(){ return handler.call(this, this, w, stop, restart) };
        function unary(op) {
                if (op == "++" || op == "--")
                        return found.apply(this, arguments);
        };
        return w.with_walkers({
                "try": found,
                "throw": found,
                "return": found,
                "new": found,
                "switch": found,
                "break": found,
                "continue": found,
                "assign": found,
                "call": found,
                "if": found,
                "for": found,
                "for-in": found,
                "while": found,
                "do": found,
                "return": found,
                "unary-prefix": unary,
                "unary-postfix": unary,
                "defun": found
        }, function(){
                while (true) try {
                        walk(ast);
                        break;
                } catch(ex) {
                        if (ex === $stop) break;
                        if (ex === $restart) continue;
                        throw ex;
                }
        });
};

function ast_lift_variables(ast) {
        var w = ast_walker(), walk = w.walk, scope;
        function do_body(body, env) {
                var _scope = scope;
                scope = env;
                body = MAP(body, walk);
                var hash = {}, names = MAP(env.names, function(type, name){
                        if (type != "var") return MAP.skip;
                        if (!env.references(name)) return MAP.skip;
                        hash[name] = true;
                        return [ name ];
                });
                if (names.length > 0) {
                        // looking for assignments to any of these variables.
                        // we can save considerable space by moving the definitions
                        // in the var declaration.
                        for_side_effects([ "block", body ], function(ast, walker, stop, restart) {
                                if (ast[0] == "assign"
                                    && ast[1] === true
                                    && ast[2][0] == "name"
                                    && HOP(hash, ast[2][1])) {
                                        // insert the definition into the var declaration
                                        for (var i = names.length; --i >= 0;) {
                                                if (names[i][0] == ast[2][1]) {
                                                        if (names[i][1]) // this name already defined, we must stop
                                                                stop();
                                                        names[i][1] = ast[3]; // definition
                                                        names.push(names.splice(i, 1)[0]);
                                                        break;
                                                }
                                        }
                                        // remove this assignment from the AST.
                                        var p = walker.parent();
                                        if (p[0] == "seq") {
                                                var a = p[2];
                                                a.unshift(0, p.length);
                                                p.splice.apply(p, a);
                                        }
                                        else if (p[0] == "stat") {
                                                p.splice(0, p.length, "block"); // empty statement
                                        }
                                        else {
                                                stop();
                                        }
                                        restart();
                                }
                                stop();
                        });
                        body.unshift([ "var", names ]);
                }
                scope = _scope;
                return body;
        };
        function _vardefs(defs) {
                var ret = null;
                for (var i = defs.length; --i >= 0;) {
                        var d = defs[i];
                        if (!d[1]) continue;
                        d = [ "assign", true, [ "name", d[0] ], d[1] ];
                        if (ret == null) ret = d;
                        else ret = [ "seq", d, ret ];
                }
                if (ret == null) {
                        if (w.parent()[0] == "for-in")
                                return [ "name", defs[0][0] ];
                        return MAP.skip;
                }
                return [ "stat", ret ];
        };
        function _toplevel(body) {
                return [ this[0], do_body(body, this.scope) ];
        };
        return w.with_walkers({
                "function": function(name, args, body){
                        for (var i = args.length; --i >= 0 && !body.scope.references(args[i]);)
                                args.pop();
                        if (!body.scope.references(name)) name = null;
                        return [ this[0], name, args, do_body(body, body.scope) ];
                },
                "defun": function(name, args, body){
                        if (!scope.references(name)) return MAP.skip;
                        for (var i = args.length; --i >= 0 && !body.scope.references(args[i]);)
                                args.pop();
                        return [ this[0], name, args, do_body(body, body.scope) ];
                },
                "var": _vardefs,
                "toplevel": _toplevel
        }, function(){
                return walk(ast_add_scope(ast));
        });
};

function ast_squeeze(ast, options) {
        options = defaults(options, {
                make_seqs   : true,
                dead_code   : true,
                no_warnings : false,
                keep_comps  : true
        });

        var w = ast_walker(), walk = w.walk;

        function negate(c) {
                var not_c = [ "unary-prefix", "!", c ];
                switch (c[0]) {
                    case "unary-prefix":
                        return c[1] == "!" && boolean_expr(c[2]) ? c[2] : not_c;
                    case "seq":
                        c = slice(c);
                        c[c.length - 1] = negate(c[c.length - 1]);
                        return c;
                    case "conditional":
                        return best_of(not_c, [ "conditional", c[1], negate(c[2]), negate(c[3]) ]);
                    case "binary":
                        var op = c[1], left = c[2], right = c[3];
                        if (!options.keep_comps) switch (op) {
                            case "<="  : return [ "binary", ">", left, right ];
                            case "<"   : return [ "binary", ">=", left, right ];
                            case ">="  : return [ "binary", "<", left, right ];
                            case ">"   : return [ "binary", "<=", left, right ];
                        }
                        switch (op) {
                            case "=="  : return [ "binary", "!=", left, right ];
                            case "!="  : return [ "binary", "==", left, right ];
                            case "===" : return [ "binary", "!==", left, right ];
                            case "!==" : return [ "binary", "===", left, right ];
                            case "&&"  : return best_of(not_c, [ "binary", "||", negate(left), negate(right) ]);
                            case "||"  : return best_of(not_c, [ "binary", "&&", negate(left), negate(right) ]);
                        }
                        break;
                }
                return not_c;
        };

        function make_conditional(c, t, e) {
                var make_real_conditional = function() {
                        if (c[0] == "unary-prefix" && c[1] == "!") {
                                return e ? [ "conditional", c[2], e, t ] : [ "binary", "||", c[2], t ];
                        } else {
                                return e ? best_of(
                                        [ "conditional", c, t, e ],
                                        [ "conditional", negate(c), e, t ]
                                ) : [ "binary", "&&", c, t ];
                        }
                };
                // shortcut the conditional if the expression has a constant value
                return when_constant(c, function(ast, val){
                        warn_unreachable(val ? e : t);
                        return          (val ? t : e);
                }, make_real_conditional);
        };

        function rmblock(block) {
                if (block != null && block[0] == "block" && block[1]) {
                        if (block[1].length == 1)
                                block = block[1][0];
                        else if (block[1].length == 0)
                                block = [ "block" ];
                }
                return block;
        };

        function _lambda(name, args, body) {
                return [ this[0], name, args, tighten(body, "lambda") ];
        };

        // this function does a few things:
        // 1. discard useless blocks
        // 2. join consecutive var declarations
        // 3. remove obviously dead code
        // 4. transform consecutive statements using the comma operator
        // 5. if block_type == "lambda" and it detects constructs like if(foo) return ... - rewrite like if (!foo) { ... }
        function tighten(statements, block_type) {
                statements = MAP(statements, walk);

                statements = statements.reduce(function(a, stat){
                        if (stat[0] == "block") {
                                if (stat[1]) {
                                        a.push.apply(a, stat[1]);
                                }
                        } else {
                                a.push(stat);
                        }
                        return a;
                }, []);

                statements = (function(a, prev){
                        statements.forEach(function(cur){
                                if (prev && ((cur[0] == "var" && prev[0] == "var") ||
                                             (cur[0] == "const" && prev[0] == "const"))) {
                                        prev[1] = prev[1].concat(cur[1]);
                                } else {
                                        a.push(cur);
                                        prev = cur;
                                }
                        });
                        return a;
                })([]);

                if (options.dead_code) statements = (function(a, has_quit){
                        statements.forEach(function(st){
                                if (has_quit) {
                                        if (st[0] == "function" || st[0] == "defun") {
                                                a.push(st);
                                        }
                                        else if (st[0] == "var" || st[0] == "const") {
                                                if (!options.no_warnings)
                                                        warn("Variables declared in unreachable code");
                                                st[1] = MAP(st[1], function(def){
                                                        if (def[1] && !options.no_warnings)
                                                                warn_unreachable([ "assign", true, [ "name", def[0] ], def[1] ]);
                                                        return [ def[0] ];
                                                });
                                                a.push(st);
                                        }
                                        else if (!options.no_warnings)
                                                warn_unreachable(st);
                                }
                                else {
                                        a.push(st);
                                        if (member(st[0], [ "return", "throw", "break", "continue" ]))
                                                has_quit = true;
                                }
                        });
                        return a;
                })([]);

                if (options.make_seqs) statements = (function(a, prev) {
                        statements.forEach(function(cur){
                                if (prev && prev[0] == "stat" && cur[0] == "stat") {
                                        prev[1] = [ "seq", prev[1], cur[1] ];
                                } else {
                                        a.push(cur);
                                        prev = cur;
                                }
                        });
                        if (a.length >= 2
                            && a[a.length-2][0] == "stat"
                            && (a[a.length-1][0] == "return" || a[a.length-1][0] == "throw")
                            && a[a.length-1][1])
                        {
                                a.splice(a.length - 2, 2,
                                         [ a[a.length-1][0],
                                           [ "seq", a[a.length-2][1], a[a.length-1][1] ]]);
                        }
                        return a;
                })([]);

                // this increases jQuery by 1K.  Probably not such a good idea after all..
                // part of this is done in prepare_ifs anyway.
                // if (block_type == "lambda") statements = (function(i, a, stat){
                //         while (i < statements.length) {
                //                 stat = statements[i++];
                //                 if (stat[0] == "if" && !stat[3]) {
                //                         if (stat[2][0] == "return" && stat[2][1] == null) {
                //                                 a.push(make_if(negate(stat[1]), [ "block", statements.slice(i) ]));
                //                                 break;
                //                         }
                //                         var last = last_stat(stat[2]);
                //                         if (last[0] == "return" && last[1] == null) {
                //                                 a.push(make_if(stat[1], [ "block", stat[2][1].slice(0, -1) ], [ "block", statements.slice(i) ]));
                //                                 break;
                //                         }
                //                 }
                //                 a.push(stat);
                //         }
                //         return a;
                // })(0, []);

                return statements;
        };

        function make_if(c, t, e) {
                return when_constant(c, function(ast, val){
                        if (val) {
                                t = walk(t);
                                warn_unreachable(e);
                                return t || [ "block" ];
                        } else {
                                e = walk(e);
                                warn_unreachable(t);
                                return e || [ "block" ];
                        }
                }, function() {
                        return make_real_if(c, t, e);
                });
        };

        function abort_else(c, t, e) {
                var ret = [ [ "if", negate(c), e ] ];
                if (t[0] == "block") {
                        if (t[1]) ret = ret.concat(t[1]);
                } else {
                        ret.push(t);
                }
                return walk([ "block", ret ]);
        };

        function make_real_if(c, t, e) {
                c = walk(c);
                t = walk(t);
                e = walk(e);

                if (empty(t)) {
                        c = negate(c);
                        t = e;
                        e = null;
                } else if (empty(e)) {
                        e = null;
                } else {
                        // if we have both else and then, maybe it makes sense to switch them?
                        (function(){
                                var a = gen_code(c);
                                var n = negate(c);
                                var b = gen_code(n);
                                if (b.length < a.length) {
                                        var tmp = t;
                                        t = e;
                                        e = tmp;
                                        c = n;
                                }
                        })();
                }
                if (empty(e) && empty(t))
                        return [ "stat", c ];
                var ret = [ "if", c, t, e ];
                if (t[0] == "if" && empty(t[3]) && empty(e)) {
                        ret = best_of(ret, walk([ "if", [ "binary", "&&", c, t[1] ], t[2] ]));
                }
                else if (t[0] == "stat") {
                        if (e) {
                                if (e[0] == "stat")
                                        ret = best_of(ret, [ "stat", make_conditional(c, t[1], e[1]) ]);
                                else if (aborts(e))
                                        ret = abort_else(c, t, e);
                        }
                        else {
                                ret = best_of(ret, [ "stat", make_conditional(c, t[1]) ]);
                        }
                }
                else if (e && t[0] == e[0] && (t[0] == "return" || t[0] == "throw") && t[1] && e[1]) {
                        ret = best_of(ret, [ t[0], make_conditional(c, t[1], e[1] ) ]);
                }
                else if (e && aborts(t)) {
                        ret = [ [ "if", c, t ] ];
                        if (e[0] == "block") {
                                if (e[1]) ret = ret.concat(e[1]);
                        }
                        else {
                                ret.push(e);
                        }
                        ret = walk([ "block", ret ]);
                }
                else if (t && aborts(e)) {
                        ret = abort_else(c, t, e);
                }
                return ret;
        };

        function _do_while(cond, body) {
                return when_constant(cond, function(cond, val){
                        if (!val) {
                                warn_unreachable(body);
                                return [ "block" ];
                        } else {
                                return [ "for", null, null, null, walk(body) ];
                        }
                });
        };

        return w.with_walkers({
                "sub": function(expr, subscript) {
                        if (subscript[0] == "string") {
                                var name = subscript[1];
                                if (is_identifier(name))
                                        return [ "dot", walk(expr), name ];
                                else if (/^[1-9][0-9]*$/.test(name) || name === "0")
                                        return [ "sub", walk(expr), [ "num", parseInt(name, 10) ] ];
                        }
                },
                "if": make_if,
                "toplevel": function(body) {
                        return [ "toplevel", tighten(body) ];
                },
                "switch": function(expr, body) {
                        var last = body.length - 1;
                        return [ "switch", walk(expr), MAP(body, function(branch, i){
                                var block = tighten(branch[1]);
                                if (i == last && block.length > 0) {
                                        var node = block[block.length - 1];
                                        if (node[0] == "break" && !node[1])
                                                block.pop();
                                }
                                return [ branch[0] ? walk(branch[0]) : null, block ];
                        }) ];
                },
                "function": _lambda,
                "defun": _lambda,
                "block": function(body) {
                        if (body) return rmblock([ "block", tighten(body) ]);
                },
                "binary": function(op, left, right) {
                        return when_constant([ "binary", op, walk(left), walk(right) ], function yes(c){
                                return best_of(walk(c), this);
                        }, function no() {
                                return function(){
                                        if(op != "==" && op != "!=") return;
                                        var l = walk(left), r = walk(right);
                                        if(l && l[0] == "unary-prefix" && l[1] == "!" && l[2][0] == "num")
                                                left = ['num', +!l[2][1]];
                                        else if (r && r[0] == "unary-prefix" && r[1] == "!" && r[2][0] == "num")
                                                right = ['num', +!r[2][1]];
                                        return ["binary", op, left, right];
                                }() || this;
                        });
                },
                "conditional": function(c, t, e) {
                        return make_conditional(walk(c), walk(t), walk(e));
                },
                "try": function(t, c, f) {
                        return [
                                "try",
                                tighten(t),
                                c != null ? [ c[0], tighten(c[1]) ] : null,
                                f != null ? tighten(f) : null
                        ];
                },
                "unary-prefix": function(op, expr) {
                        expr = walk(expr);
                        var ret = [ "unary-prefix", op, expr ];
                        if (op == "!")
                                ret = best_of(ret, negate(expr));
                        return when_constant(ret, function(ast, val){
                                return walk(ast); // it's either true or false, so minifies to !0 or !1
                        }, function() { return ret });
                },
                "name": function(name) {
                        switch (name) {
                            case "true": return [ "unary-prefix", "!", [ "num", 0 ]];
                            case "false": return [ "unary-prefix", "!", [ "num", 1 ]];
                        }
                },
                "while": _do_while,
                "assign": function(op, lvalue, rvalue) {
                        lvalue = walk(lvalue);
                        rvalue = walk(rvalue);
                        var okOps = [ '+', '-', '/', '*', '%', '>>', '<<', '>>>', '|', '^', '&' ];
                        if (op === true && lvalue[0] === "name" && rvalue[0] === "binary" &&
                            ~okOps.indexOf(rvalue[1]) && rvalue[2][0] === "name" &&
                            rvalue[2][1] === lvalue[1]) {
                                return [ this[0], rvalue[1], lvalue, rvalue[3] ]
                        }
                        return [ this[0], op, lvalue, rvalue ];
                }
        }, function() {
                for (var i = 0; i < 2; ++i) {
                        ast = prepare_ifs(ast);
                        ast = walk(ast);
                }
                return ast;
        });
};

/* -----[ re-generate code from the AST ]----- */

var DOT_CALL_NO_PARENS = jsp.array_to_hash([
        "name",
        "array",
        "object",
        "string",
        "dot",
        "sub",
        "call",
        "regexp",
        "defun"
]);

function make_string(str, ascii_only) {
        var dq = 0, sq = 0;
        str = str.replace(/[\\\b\f\n\r\t\x22\x27\u2028\u2029\0]/g, function(s){
                switch (s) {
                    case "\\": return "\\\\";
                    case "\b": return "\\b";
                    case "\f": return "\\f";
                    case "\n": return "\\n";
                    case "\r": return "\\r";
                    case "\u2028": return "\\u2028";
                    case "\u2029": return "\\u2029";
                    case '"': ++dq; return '"';
                    case "'": ++sq; return "'";
                    case "\0": return "\\0";
                }
                return s;
        });
        if (ascii_only) str = to_ascii(str);
        if (dq > sq) return "'" + str.replace(/\x27/g, "\\'") + "'";
        else return '"' + str.replace(/\x22/g, '\\"') + '"';
};

function to_ascii(str) {
        return str.replace(/[\u0080-\uffff]/g, function(ch) {
                var code = ch.charCodeAt(0).toString(16);
                while (code.length < 4) code = "0" + code;
                return "\\u" + code;
        });
};

var SPLICE_NEEDS_BRACKETS = jsp.array_to_hash([ "if", "while", "do", "for", "for-in", "with" ]);

function gen_code(ast, options) {
        options = defaults(options, {
                indent_start : 0,
                indent_level : 4,
                quote_keys   : false,
                space_colon  : false,
                beautify     : false,
                ascii_only   : false,
                inline_script: false
        });
        var beautify = !!options.beautify;
        var indentation = 0,
            newline = beautify ? "\n" : "",
            space = beautify ? " " : "";

        function encode_string(str) {
                var ret = make_string(str, options.ascii_only);
                if (options.inline_script)
                        ret = ret.replace(/<\x2fscript([>\/\t\n\f\r ])/gi, "<\\/script$1");
                return ret;
        };

        function make_name(name) {
                name = name.toString();
                if (options.ascii_only)
                        name = to_ascii(name);
                return name;
        };

        function indent(line) {
                if (line == null)
                        line = "";
                if (beautify)
                        line = repeat_string(" ", options.indent_start + indentation * options.indent_level) + line;
                return line;
        };

        function with_indent(cont, incr) {
                if (incr == null) incr = 1;
                indentation += incr;
                try { return cont.apply(null, slice(arguments, 1)); }
                finally { indentation -= incr; }
        };

        function add_spaces(a) {
                if (beautify)
                        return a.join(" ");
                var b = [];
                for (var i = 0; i < a.length; ++i) {
                        var next = a[i + 1];
                        b.push(a[i]);
                        if (next &&
                            ((/[a-z0-9_\x24]$/i.test(a[i].toString()) && /^[a-z0-9_\x24]/i.test(next.toString())) ||
                             (/[\+\-]$/.test(a[i].toString()) && /^[\+\-]/.test(next.toString())))) {
                                b.push(" ");
                        }
                }
                return b.join("");
        };

        function add_commas(a) {
                return a.join("," + space);
        };

        function parenthesize(expr) {
                var gen = make(expr);
                for (var i = 1; i < arguments.length; ++i) {
                        var el = arguments[i];
                        if ((el instanceof Function && el(expr)) || expr[0] == el)
                                return "(" + gen + ")";
                }
                return gen;
        };

        function best_of(a) {
                if (a.length == 1) {
                        return a[0];
                }
                if (a.length == 2) {
                        var b = a[1];
                        a = a[0];
                        return a.length <= b.length ? a : b;
                }
                return best_of([ a[0], best_of(a.slice(1)) ]);
        };

        function needs_parens(expr) {
                if (expr[0] == "function" || expr[0] == "object") {
                        // dot/call on a literal function requires the
                        // function literal itself to be parenthesized
                        // only if it's the first "thing" in a
                        // statement.  This means that the parent is
                        // "stat", but it could also be a "seq" and
                        // we're the first in this "seq" and the
                        // parent is "stat", and so on.  Messy stuff,
                        // but it worths the trouble.
                        var a = slice(w.stack()), self = a.pop(), p = a.pop();
                        while (p) {
                                if (p[0] == "stat") return true;
                                if (((p[0] == "seq" || p[0] == "call" || p[0] == "dot" || p[0] == "sub" || p[0] == "conditional") && p[1] === self) ||
                                    ((p[0] == "binary" || p[0] == "assign" || p[0] == "unary-postfix") && p[2] === self)) {
                                        self = p;
                                        p = a.pop();
                                } else {
                                        return false;
                                }
                        }
                }
                return !HOP(DOT_CALL_NO_PARENS, expr[0]);
        };

        function make_num(num) {
                var str = num.toString(10), a = [ str.replace(/^0\./, ".") ], m;
                if (Math.floor(num) === num) {
                        if (num >= 0) {
                                a.push("0x" + num.toString(16).toLowerCase(), // probably pointless
                                       "0" + num.toString(8)); // same.
                        } else {
                                a.push("-0x" + (-num).toString(16).toLowerCase(), // probably pointless
                                       "-0" + (-num).toString(8)); // same.
                        }
                        if ((m = /^(.*?)(0+)$/.exec(num))) {
                                a.push(m[1] + "e" + m[2].length);
                        }
                } else if ((m = /^0?\.(0+)(.*)$/.exec(num))) {
                        a.push(m[2] + "e-" + (m[1].length + m[2].length),
                               str.substr(str.indexOf(".")));
                }
                return best_of(a);
        };

        var w = ast_walker();
        var make = w.walk;
        return w.with_walkers({
                "string": encode_string,
                "num": make_num,
                "name": make_name,
                "debugger": function(){ return "debugger" },
                "toplevel": function(statements) {
                        return make_block_statements(statements)
                                .join(newline + newline);
                },
                "splice": function(statements) {
                        var parent = w.parent();
                        if (HOP(SPLICE_NEEDS_BRACKETS, parent)) {
                                // we need block brackets in this case
                                return make_block.apply(this, arguments);
                        } else {
                                return MAP(make_block_statements(statements, true),
                                           function(line, i) {
                                                   // the first line is already indented
                                                   return i > 0 ? indent(line) : line;
                                           }).join(newline);
                        }
                },
                "block": make_block,
                "var": function(defs) {
                        return "var " + add_commas(MAP(defs, make_1vardef)) + ";";
                },
                "const": function(defs) {
                        return "const " + add_commas(MAP(defs, make_1vardef)) + ";";
                },
                "try": function(tr, ca, fi) {
                        var out = [ "try", make_block(tr) ];
                        if (ca) out.push("catch", "(" + ca[0] + ")", make_block(ca[1]));
                        if (fi) out.push("finally", make_block(fi));
                        return add_spaces(out);
                },
                "throw": function(expr) {
                        return add_spaces([ "throw", make(expr) ]) + ";";
                },
                "new": function(ctor, args) {
                        args = args.length > 0 ? "(" + add_commas(MAP(args, function(expr){
                                return parenthesize(expr, "seq");
                        })) + ")" : "";
                        return add_spaces([ "new", parenthesize(ctor, "seq", "binary", "conditional", "assign", function(expr){
                                var w = ast_walker(), has_call = {};
                                try {
                                        w.with_walkers({
                                                "call": function() { throw has_call },
                                                "function": function() { return this }
                                        }, function(){
                                                w.walk(expr);
                                        });
                                } catch(ex) {
                                        if (ex === has_call)
                                                return true;
                                        throw ex;
                                }
                        }) + args ]);
                },
                "switch": function(expr, body) {
                        return add_spaces([ "switch", "(" + make(expr) + ")", make_switch_block(body) ]);
                },
                "break": function(label) {
                        var out = "break";
                        if (label != null)
                                out += " " + make_name(label);
                        return out + ";";
                },
                "continue": function(label) {
                        var out = "continue";
                        if (label != null)
                                out += " " + make_name(label);
                        return out + ";";
                },
                "conditional": function(co, th, el) {
                        return add_spaces([ parenthesize(co, "assign", "seq", "conditional"), "?",
                                            parenthesize(th, "seq"), ":",
                                            parenthesize(el, "seq") ]);
                },
                "assign": function(op, lvalue, rvalue) {
                        if (op && op !== true) op += "=";
                        else op = "=";
                        return add_spaces([ make(lvalue), op, parenthesize(rvalue, "seq") ]);
                },
                "dot": function(expr) {
                        var out = make(expr), i = 1;
                        if (expr[0] == "num") {
                                if (!/\./.test(expr[1]))
                                        out += ".";
                        } else if (expr[0] != "function" && needs_parens(expr))
                                out = "(" + out + ")";
                        while (i < arguments.length)
                                out += "." + make_name(arguments[i++]);
                        return out;
                },
                "call": function(func, args) {
                        var f = make(func);
                        if (f.charAt(0) != "(" && needs_parens(func))
                                f = "(" + f + ")";
                        return f + "(" + add_commas(MAP(args, function(expr){
                                return parenthesize(expr, "seq");
                        })) + ")";
                },
                "function": make_function,
                "defun": make_function,
                "if": function(co, th, el) {
                        var out = [ "if", "(" + make(co) + ")", el ? make_then(th) : make(th) ];
                        if (el) {
                                out.push("else", make(el));
                        }
                        return add_spaces(out);
                },
                "for": function(init, cond, step, block) {
                        var out = [ "for" ];
                        init = (init != null ? make(init) : "").replace(/;*\s*$/, ";" + space);
                        cond = (cond != null ? make(cond) : "").replace(/;*\s*$/, ";" + space);
                        step = (step != null ? make(step) : "").replace(/;*\s*$/, "");
                        var args = init + cond + step;
                        if (args == "; ; ") args = ";;";
                        out.push("(" + args + ")", make(block));
                        return add_spaces(out);
                },
                "for-in": function(vvar, key, hash, block) {
                        return add_spaces([ "for", "(" +
                                            (vvar ? make(vvar).replace(/;+$/, "") : make(key)),
                                            "in",
                                            make(hash) + ")", make(block) ]);
                },
                "while": function(condition, block) {
                        return add_spaces([ "while", "(" + make(condition) + ")", make(block) ]);
                },
                "do": function(condition, block) {
                        return add_spaces([ "do", make(block), "while", "(" + make(condition) + ")" ]) + ";";
                },
                "return": function(expr) {
                        var out = [ "return" ];
                        if (expr != null) out.push(make(expr));
                        return add_spaces(out) + ";";
                },
                "binary": function(operator, lvalue, rvalue) {
                        var left = make(lvalue), right = make(rvalue);
                        // XXX: I'm pretty sure other cases will bite here.
                        //      we need to be smarter.
                        //      adding parens all the time is the safest bet.
                        if (member(lvalue[0], [ "assign", "conditional", "seq" ]) ||
                            lvalue[0] == "binary" && PRECEDENCE[operator] > PRECEDENCE[lvalue[1]] ||
                            lvalue[0] == "function" && needs_parens(this)) {
                                left = "(" + left + ")";
                        }
                        if (member(rvalue[0], [ "assign", "conditional", "seq" ]) ||
                            rvalue[0] == "binary" && PRECEDENCE[operator] >= PRECEDENCE[rvalue[1]] &&
                            !(rvalue[1] == operator && member(operator, [ "&&", "||", "*" ]))) {
                                right = "(" + right + ")";
                        }
                        else if (!beautify && options.inline_script && (operator == "<" || operator == "<<")
                                 && rvalue[0] == "regexp" && /^script/i.test(rvalue[1])) {
                                right = " " + right;
                        }
                        return add_spaces([ left, operator, right ]);
                },
                "unary-prefix": function(operator, expr) {
                        var val = make(expr);
                        if (!(expr[0] == "num" || (expr[0] == "unary-prefix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
                                val = "(" + val + ")";
                        return operator + (jsp.is_alphanumeric_char(operator.charAt(0)) ? " " : "") + val;
                },
                "unary-postfix": function(operator, expr) {
                        var val = make(expr);
                        if (!(expr[0] == "num" || (expr[0] == "unary-postfix" && !HOP(OPERATORS, operator + expr[1])) || !needs_parens(expr)))
                                val = "(" + val + ")";
                        return val + operator;
                },
                "sub": function(expr, subscript) {
                        var hash = make(expr);
                        if (needs_parens(expr))
                                hash = "(" + hash + ")";
                        return hash + "[" + make(subscript) + "]";
                },
                "object": function(props) {
                        var obj_needs_parens = needs_parens(this);
                        if (props.length == 0)
                                return obj_needs_parens ? "({})" : "{}";
                        var out = "{" + newline + with_indent(function(){
                                return MAP(props, function(p){
                                        if (p.length == 3) {
                                                // getter/setter.  The name is in p[0], the arg.list in p[1][2], the
                                                // body in p[1][3] and type ("get" / "set") in p[2].
                                                return indent(make_function(p[0], p[1][2], p[1][3], p[2], true));
                                        }
                                        var key = p[0], val = parenthesize(p[1], "seq");
                                        if (options.quote_keys) {
                                                key = encode_string(key);
                                        } else if ((typeof key == "number" || !beautify && +key + "" == key)
                                                   && parseFloat(key) >= 0) {
                                                key = make_num(+key);
                                        } else if (!is_identifier(key)) {
                                                key = encode_string(key);
                                        }
                                        return indent(add_spaces(beautify && options.space_colon
                                                                 ? [ key, ":", val ]
                                                                 : [ key + ":", val ]));
                                }).join("," + newline);
                        }) + newline + indent("}");
                        return obj_needs_parens ? "(" + out + ")" : out;
                },
                "regexp": function(rx, mods) {
                        return "/" + rx + "/" + mods;
                },
                "array": function(elements) {
                        if (elements.length == 0) return "[]";
                        return add_spaces([ "[", add_commas(MAP(elements, function(el, i){
                                if (!beautify && el[0] == "atom" && el[1] == "undefined") return i === elements.length - 1 ? "," : "";
                                return parenthesize(el, "seq");
                        })), "]" ]);
                },
                "stat": function(stmt) {
                        return make(stmt).replace(/;*\s*$/, ";");
                },
                "seq": function() {
                        return add_commas(MAP(slice(arguments), make));
                },
                "label": function(name, block) {
                        return add_spaces([ make_name(name), ":", make(block) ]);
                },
                "with": function(expr, block) {
                        return add_spaces([ "with", "(" + make(expr) + ")", make(block) ]);
                },
                "atom": function(name) {
                        return make_name(name);
                }
        }, function(){ return make(ast) });

        // The squeezer replaces "block"-s that contain only a single
        // statement with the statement itself; technically, the AST
        // is correct, but this can create problems when we output an
        // IF having an ELSE clause where the THEN clause ends in an
        // IF *without* an ELSE block (then the outer ELSE would refer
        // to the inner IF).  This function checks for this case and
        // adds the block brackets if needed.
        function make_then(th) {
                if (th == null) return ";";
                if (th[0] == "do") {
                        // https://github.com/mishoo/UglifyJS/issues/#issue/57
                        // IE croaks with "syntax error" on code like this:
                        //     if (foo) do ... while(cond); else ...
                        // we need block brackets around do/while
                        return make_block([ th ]);
                }
                var b = th;
                while (true) {
                        var type = b[0];
                        if (type == "if") {
                                if (!b[3])
                                        // no else, we must add the block
                                        return make([ "block", [ th ]]);
                                b = b[3];
                        }
                        else if (type == "while" || type == "do") b = b[2];
                        else if (type == "for" || type == "for-in") b = b[4];
                        else break;
                }
                return make(th);
        };

        function make_function(name, args, body, keyword, no_parens) {
                var out = keyword || "function";
                if (name) {
                        out += " " + make_name(name);
                }
                out += "(" + add_commas(MAP(args, make_name)) + ")";
                out = add_spaces([ out, make_block(body) ]);
                return (!no_parens && needs_parens(this)) ? "(" + out + ")" : out;
        };

        function must_has_semicolon(node) {
                switch (node[0]) {
                    case "with":
                    case "while":
                        return empty(node[2]); // `with' or `while' with empty body?
                    case "for":
                    case "for-in":
                        return empty(node[4]); // `for' with empty body?
                    case "if":
                        if (empty(node[2]) && !node[3]) return true; // `if' with empty `then' and no `else'
                        if (node[3]) {
                                if (empty(node[3])) return true; // `else' present but empty
                                return must_has_semicolon(node[3]); // dive into the `else' branch
                        }
                        return must_has_semicolon(node[2]); // dive into the `then' branch
                }
        };

        function make_block_statements(statements, noindent) {
                for (var a = [], last = statements.length - 1, i = 0; i <= last; ++i) {
                        var stat = statements[i];
                        var code = make(stat);
                        if (code != ";") {
                                if (!beautify && i == last && !must_has_semicolon(stat)) {
                                        code = code.replace(/;+\s*$/, "");
                                }
                                a.push(code);
                        }
                }
                return noindent ? a : MAP(a, indent);
        };

        function make_switch_block(body) {
                var n = body.length;
                if (n == 0) return "{}";
                return "{" + newline + MAP(body, function(branch, i){
                        var has_body = branch[1].length > 0, code = with_indent(function(){
                                return indent(branch[0]
                                              ? add_spaces([ "case", make(branch[0]) + ":" ])
                                              : "default:");
                        }, 0.5) + (has_body ? newline + with_indent(function(){
                                return make_block_statements(branch[1]).join(newline);
                        }) : "");
                        if (!beautify && has_body && i < n - 1)
                                code += ";";
                        return code;
                }).join(newline) + newline + indent("}");
        };

        function make_block(statements) {
                if (!statements) return ";";
                if (statements.length == 0) return "{}";
                return "{" + newline + with_indent(function(){
                        return make_block_statements(statements).join(newline);
                }) + newline + indent("}");
        };

        function make_1vardef(def) {
                var name = def[0], val = def[1];
                if (val != null)
                        name = add_spaces([ make_name(name), "=", parenthesize(val, "seq") ]);
                return name;
        };

};

function split_lines(code, max_line_length) {
        var splits = [ 0 ];
        jsp.parse(function(){
                var next_token = jsp.tokenizer(code);
                var last_split = 0;
                var prev_token;
                function current_length(tok) {
                        return tok.pos - last_split;
                };
                function split_here(tok) {
                        last_split = tok.pos;
                        splits.push(last_split);
                };
                function custom(){
                        var tok = next_token.apply(this, arguments);
                        out: {
                                if (prev_token) {
                                        if (prev_token.type == "keyword") break out;
                                }
                                if (current_length(tok) > max_line_length) {
                                        switch (tok.type) {
                                            case "keyword":
                                            case "atom":
                                            case "name":
                                            case "punc":
                                                split_here(tok);
                                                break out;
                                        }
                                }
                        }
                        prev_token = tok;
                        return tok;
                };
                custom.context = function() {
                        return next_token.context.apply(this, arguments);
                };
                return custom;
        }());
        return splits.map(function(pos, i){
                return code.substring(pos, splits[i + 1] || code.length);
        }).join("\n");
};

/* -----[ Utilities ]----- */

function repeat_string(str, i) {
        if (i <= 0) return "";
        if (i == 1) return str;
        var d = repeat_string(str, i >> 1);
        d += d;
        if (i & 1) d += str;
        return d;
};

function defaults(args, defs) {
        var ret = {};
        if (args === true)
                args = {};
        for (var i in defs) if (HOP(defs, i)) {
                ret[i] = (args && HOP(args, i)) ? args[i] : defs[i];
        }
        return ret;
};

function is_identifier(name) {
        return /^[a-z_$][a-z0-9_$]*$/i.test(name)
                && name != "this"
                && !HOP(jsp.KEYWORDS_ATOM, name)
                && !HOP(jsp.RESERVED_WORDS, name)
                && !HOP(jsp.KEYWORDS, name);
};

function HOP(obj, prop) {
        return Object.prototype.hasOwnProperty.call(obj, prop);
};

// some utilities

var MAP;

(function(){
        MAP = function(a, f, o) {
                var ret = [], top = [], i;
                function doit() {
                        var val = f.call(o, a[i], i);
                        if (val instanceof AtTop) {
                                val = val.v;
                                if (val instanceof Splice) {
                                        top.push.apply(top, val.v);
                                } else {
                                        top.push(val);
                                }
                        }
                        else if (val != skip) {
                                if (val instanceof Splice) {
                                        ret.push.apply(ret, val.v);
                                } else {
                                        ret.push(val);
                                }
                        }
                };
                if (a instanceof Array) for (i = 0; i < a.length; ++i) doit();
                else for (i in a) if (HOP(a, i)) doit();
                return top.concat(ret);
        };
        MAP.at_top = function(val) { return new AtTop(val) };
        MAP.splice = function(val) { return new Splice(val) };
        var skip = MAP.skip = {};
        function AtTop(val) { this.v = val };
        function Splice(val) { this.v = val };
})();

/* -----[ Exports ]----- */

exports.ast_walker = ast_walker;
exports.ast_mangle = ast_mangle;
exports.ast_squeeze = ast_squeeze;
exports.ast_lift_variables = ast_lift_variables;
exports.gen_code = gen_code;
exports.ast_add_scope = ast_add_scope;
exports.set_logger = function(logger) { warn = logger };
exports.make_string = make_string;
exports.split_lines = split_lines;
exports.MAP = MAP;

// keep this last!
exports.ast_squeeze_more = require("./squeeze-more").ast_squeeze_more;

});define('uglifyjs/index', ["require", "exports", "module", "./parse-js", "./process", "./consolidator"], function(require, exports, module) {

//convienence function(src, [options]);
function uglify(orig_code, options){
  options || (options = {});
  var jsp = uglify.parser;
  var pro = uglify.uglify;

  var ast = jsp.parse(orig_code, options.strict_semicolons); // parse code and get the initial AST
  ast = pro.ast_mangle(ast, options.mangle_options); // get a new AST with mangled names
  ast = pro.ast_squeeze(ast, options.squeeze_options); // get an AST with compression optimizations
  var final_code = pro.gen_code(ast, options.gen_options); // compressed code here
  return final_code;
};

uglify.parser = require("./parse-js");
uglify.uglify = require("./process");
uglify.consolidator = require("./consolidator");

module.exports = uglify

});/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint plusplus: true */
/*global define: false */

define('parse', ['./esprima', './uglifyjs/index'], function (esprima, uglify) {
    'use strict';

    var parser = uglify.parser,
        processor = uglify.uglify,
        ostring = Object.prototype.toString,
        isArray;

    if (Array.isArray) {
        isArray = Array.isArray;
    } else {
        isArray = function (it) {
            return ostring.call(it) === "[object Array]";
        };
    }

    /**
     * Determines if the AST node is an array literal
     */
    function isArrayLiteral(node) {
        return node[0] === 'array';
    }

    /**
     * Determines if the AST node is an object literal
     */
    function isObjectLiteral(node) {
        return node[0] === 'object';
    }

    /**
     * Converts a regular JS array of strings to an AST node that
     * represents that array.
     * @param {Array} ary
     * @param {Node} an AST node that represents an array of strings.
     */
    function toAstArray(ary) {
        var output = [
            'array',
            []
        ],
        i, item;

        for (i = 0; i < ary.length; i++) {
            item = ary[i];
            output[1].push([
                'string',
                item
            ]);
        }

        return output;
    }

    /**
     * Validates a node as being an object literal (like for i18n bundles)
     * or an array literal with just string members. If an array literal,
     * only return array members that are full strings. So the caller of
     * this function should use the return value as the new value for the
     * node.
     *
     * This function does not need to worry about comments, they are not
     * present in this AST.
     *
     * @param {Node} node an AST node.
     *
     * @returns {Node} an AST node to use for the valid dependencies.
     * If null is returned, then it means the input node was not a valid
     * dependency.
     */
    function validateDeps(node) {
        var newDeps = ['array', []],
            arrayArgs, i, dep;

        if (!node) {
            return null;
        }

        if (isObjectLiteral(node) || node[0] === 'function') {
            return node;
        }

        //Dependencies can be an object literal or an array.
        if (!isArrayLiteral(node)) {
            return null;
        }

        arrayArgs = node[1];

        for (i = 0; i < arrayArgs.length; i++) {
            dep = arrayArgs[i];
            if (dep[0] === 'string') {
                newDeps[1].push(dep);
            }
        }
        return newDeps[1].length ? newDeps : null;
    }

    /**
     * Gets dependencies from a node, but only if it is an array literal,
     * and only if the dependency is a string literal.
     *
     * This function does not need to worry about comments, they are not
     * present in this AST.
     *
     * @param {Node} node an AST node.
     *
     * @returns {Array} of valid dependencies.
     * If null is returned, then it means the input node was not a valid
     * array literal, or did not have any string literals..
     */
    function getValidDeps(node) {
        var newDeps = [],
            arrayArgs, i, dep;

        if (!node) {
            return null;
        }

        if (isObjectLiteral(node) || node[0] === 'function') {
            return null;
        }

        //Dependencies can be an object literal or an array.
        if (!isArrayLiteral(node)) {
            return null;
        }

        arrayArgs = node[1];

        for (i = 0; i < arrayArgs.length; i++) {
            dep = arrayArgs[i];
            if (dep[0] === 'string') {
                newDeps.push(dep[1]);
            }
        }
        return newDeps.length ? newDeps : null;
    }

    /**
     * Main parse function. Returns a string of any valid require or define/require.def
     * calls as part of one JavaScript source string.
     * @param {String} moduleName the module name that represents this file.
     * It is used to create a default define if there is not one already for the file.
     * This allows properly tracing dependencies for builds. Otherwise, if
     * the file just has a require() call, the file dependencies will not be
     * properly reflected: the file will come before its dependencies.
     * @param {String} moduleName
     * @param {String} fileName
     * @param {String} fileContents
     * @param {Object} options optional options. insertNeedsDefine: true will
     * add calls to require.needsDefine() if appropriate.
     * @returns {String} JS source string or null, if no require or define/require.def
     * calls are found.
     */
    function parse(moduleName, fileName, fileContents, options) {
        options = options || {};

        //Set up source input
        var moduleDeps = [],
            result = '',
            moduleList = [],
            needsDefine = true,
            astRoot = parser.parse(fileContents),
            i, moduleCall, depString;

        parse.recurse(astRoot, function (callName, config, name, deps) {
            //If name is an array, it means it is an anonymous module,
            //so adjust args appropriately. An anonymous module could
            //have a FUNCTION as the name type, but just ignore those
            //since we just want to find dependencies.
            if (name && isArrayLiteral(name)) {
                deps = name;
                name = null;
            }

            deps = getValidDeps(deps);
            if (!deps) {
                deps = [];
            }

            //Get the name as a string literal, if it is available.
            if (name && name[0] === 'string') {
                name = name[1];
            } else {
                name = null;
            }

            if (callName === 'define' && (!name || name === moduleName)) {
                needsDefine = false;
            }

            if (!name) {
                //If there is no module name, the dependencies are for
                //this file/default module name.
                moduleDeps = moduleDeps.concat(deps);
            } else {
                moduleList.push({
                    name: name,
                    deps: deps
                });
            }

            //If define was found, no need to dive deeper, unless
            //the config explicitly wants to dig deeper.
            return !options.findNestedDependencies;
        }, options);

        if (options.insertNeedsDefine && needsDefine) {
            result += 'require.needsDefine("' + moduleName + '");';
        }

        if (moduleDeps.length || moduleList.length) {
            for (i = 0; i < moduleList.length; i++) {
                moduleCall = moduleList[i];
                if (result) {
                    result += '\n';
                }

                //If this is the main module for this file, combine any
                //"anonymous" dependencies (could come from a nested require
                //call) with this module.
                if (moduleCall.name === moduleName) {
                    moduleCall.deps = moduleCall.deps.concat(moduleDeps);
                    moduleDeps = [];
                }

                depString = moduleCall.deps.length ? '["' + moduleCall.deps.join('","') + '"]' : '[]';
                result += 'define("' + moduleCall.name + '",' + depString + ');';
            }
            if (moduleDeps.length) {
                if (result) {
                    result += '\n';
                }
                depString = moduleDeps.length ? '["' + moduleDeps.join('","') + '"]' : '[]';
                result += 'define("' + moduleName + '",' + depString + ');';
            }
        }

        return result || null;
    }

    //Add some private methods to object for use in derived objects.
    parse.isArray = isArray;
    parse.isObjectLiteral = isObjectLiteral;
    parse.isArrayLiteral = isArrayLiteral;

    /**
     * Handles parsing a file recursively for require calls.
     * @param {Array} parentNode the AST node to start with.
     * @param {Function} onMatch function to call on a parse match.
     * @param {Object} [options] This is normally the build config options if
     * it is passed.
     * @param {Function} [recurseCallback] function to call on each valid
     * node, defaults to parse.parseNode.
     */
    parse.recurse = function (parentNode, onMatch, options, recurseCallback) {
        var hasHas = options && options.has,
            i, node;

        recurseCallback = recurseCallback || this.parseNode;

        if (isArray(parentNode)) {
            for (i = 0; i < parentNode.length; i++) {
                node = parentNode[i];
                if (isArray(node)) {
                    //If has config is in play, if calls have been converted
                    //by this point to be true/false values. So, if
                    //options has a 'has' value, skip if branches that have
                    //literal false values.

                    //uglify returns if constructs in an array:
                    //[0]: 'if'
                    //[1]: the condition, ['name', true | false] for the has replaced case.
                    //[2]: the block to process if true
                    //[3]: the block to process if false
                    //For if/else if/else, the else if is in the [3],
                    //so only ever have to deal with this structure.
                    if (hasHas && node[0] === 'if' && node[1] && node[1][0] === 'name' &&
                        (node[1][1] === 'true' || node[1][1] === 'false')) {
                        if (node[1][1] === 'true') {
                            this.recurse([node[2]], onMatch, options, recurseCallback);
                        } else {
                            this.recurse([node[3]], onMatch, options, recurseCallback);
                        }
                    } else {
                        //If the onMatch indicated parsing should
                        //stop for children of this node, stop, otherwise,
                        //keep going.
                        if (!recurseCallback(node, onMatch)) {
                            this.recurse(node, onMatch, options, recurseCallback);
                        }
                    }
                }
            }
        }
    };

    /**
     * Determines if the file defines require().
     * @param {String} fileName
     * @param {String} fileContents
     * @returns {Boolean}
     */
    parse.definesRequire = function (fileName, fileContents) {
        var astRoot = parser.parse(fileContents);
        return this.nodeHasRequire(astRoot);
    };

    /**
     * Finds require("") calls inside a CommonJS anonymous module wrapped in a
     * define(function(require, exports, module){}) wrapper. These dependencies
     * will be added to a modified define() call that lists the dependencies
     * on the outside of the function.
     * @param {String} fileName
     * @param {String} fileContents
     * @returns {Array} an array of module names that are dependencies. Always
     * returns an array, but could be of length zero.
     */
    parse.getAnonDeps = function (fileName, fileContents) {
        var astRoot = parser.parse(fileContents),
            defFunc = this.findAnonDefineFactory(astRoot);

        return parse.getAnonDepsFromNode(defFunc);
    };

    /**
     * Finds require("") calls inside a CommonJS anonymous module wrapped
     * in a define function, given an AST node for the definition function.
     * @param {Node} node the AST node for the definition function.
     * @returns {Array} and array of dependency names. Can be of zero length.
     */
    parse.getAnonDepsFromNode = function (node) {
        var deps = [],
            funcArgLength;

        if (node) {
            this.findRequireDepNames(node, deps);

            //If no deps, still add the standard CommonJS require, exports, module,
            //in that order, to the deps, but only if specified as function args.
            //In particular, if exports is used, it is favored over the return
            //value of the function, so only add it if asked.
            funcArgLength = node[2] && node[2].length;
            if (funcArgLength) {
                deps = (funcArgLength > 1 ? ["require", "exports", "module"] :
                        ["require"]).concat(deps);
            }
        }
        return deps;
    };

    /**
     * Finds the function in define(function (require, exports, module){});
     * @param {Array} node
     * @returns {Boolean}
     */
    parse.findAnonDefineFactory = function (node) {
        var callback, i, n, call, args;

        if (isArray(node)) {
            if (node[0] === 'call' && node.length > 2) {
                call = node[1];
                args = node[2];
                if ((call[0] === 'name' && call[1] === 'define') ||
                           (call[0] === 'dot' && call[1][1] === 'require' && call[2] === 'def')) {

                    //There should only be one argument and it should be a function,
                    //or a named module with function as second arg
                    if (args.length === 1 && args[0][0] === 'function') {
                        return args[0];
                    } else if (args.length === 2 && args[0][0] === 'string' &&
                               args[1][0] === 'function') {
                        return args[1];
                    }
                }
            }

            //Check child nodes
            for (i = 0; i < node.length; i++) {
                n = node[i];
                callback = this.findAnonDefineFactory(n);
                if (callback) {
                    return callback;
                }
            }
        }

        return null;
    };

    /**
     * Finds any config that is passed to requirejs.
     * @param {String} fileName
     * @param {String} fileContents
     *
     * @returns {Object} a config object. Will be null if no config.
     * Can throw an error if the config in the file cannot be evaluated in
     * a build context to valid JavaScript.
     */
    parse.findConfig = function (fileName, fileContents) {
        /*jslint evil: true */
        //This is a litle bit inefficient, it ends up with two uglifyjs parser
        //calls. Can revisit later, but trying to build out larger functional
        //pieces first.
        var foundConfig = null,
            astRoot = parser.parse(fileContents);

        parse.recurse(astRoot, function (configNode) {
            var jsConfig;

            if (!foundConfig && configNode) {
                jsConfig = parse.nodeToString(configNode);
                foundConfig = eval('(' + jsConfig + ')');
                return foundConfig;
            }
            return undefined;
        }, null, parse.parseConfigNode);

        return foundConfig;
    };

    /**
     * Finds all dependencies specified in dependency arrays and inside
     * simplified commonjs wrappers.
     * @param {String} fileName
     * @param {String} fileContents
     *
     * @returns {Array} an array of dependency strings. The dependencies
     * have not been normalized, they may be relative IDs.
     */
    parse.findDependencies = function (fileName, fileContents, options) {
        //This is a litle bit inefficient, it ends up with two uglifyjs parser
        //calls. Can revisit later, but trying to build out larger functional
        //pieces first.
        var dependencies = [],
            astRoot = parser.parse(fileContents);

        parse.recurse(astRoot, function (callName, config, name, deps) {
            //Normalize the input args.
            if (name && isArrayLiteral(name)) {
                deps = name;
                name = null;
            }

            deps = getValidDeps(deps);
            if (deps) {
                dependencies = dependencies.concat(deps);
            }
        }, options);

        return dependencies;
    };

    /**
     * Finds only CJS dependencies, ones that are the form require('stringLiteral')
     */
    parse.findCjsDependencies = function (fileName, fileContents, options) {
        //This is a litle bit inefficient, it ends up with two uglifyjs parser
        //calls. Can revisit later, but trying to build out larger functional
        //pieces first.
        var dependencies = [],
            astRoot = parser.parse(fileContents);

        parse.recurse(astRoot, function (dep) {
            dependencies.push(dep);
        }, options, function (node, onMatch) {

            var call, args;

            if (!isArray(node)) {
                return false;
            }

            if (node[0] === 'call') {
                call = node[1];
                args = node[2];

                if (call) {
                    //A require('') use.
                    if (call[0] === 'name' && call[1] === 'require' &&
                        args[0][0] === 'string') {
                        return onMatch(args[0][1]);
                    }
                }
            }

            return false;

        });

        return dependencies;
    };

    /**
     * Determines if define(), require({}|[]) or requirejs was called in the
     * file. Also finds out if define() is declared and if define.amd is called.
     */
    parse.usesAmdOrRequireJs = function (fileName, fileContents, options) {
        var astRoot = parser.parse(fileContents),
            uses;

        parse.recurse(astRoot, function (prop) {
            if (!uses) {
                uses = {};
            }
            uses[prop] = true;
        }, options, parse.findAmdOrRequireJsNode);

        return uses;
    };

    /**
     * Determines if require(''), exports.x =, module.exports =,
     * __dirname, __filename are used. So, not strictly traditional CommonJS,
     * also checks for Node variants.
     */
    parse.usesCommonJs = function (fileName, fileContents, options) {
        var uses = null,
            assignsExports = false,
            astRoot = parser.parse(fileContents);

        parse.recurse(astRoot, function (prop) {
            if (prop === 'varExports') {
                assignsExports = true;
            } else if (prop !== 'exports' || !assignsExports) {
                if (!uses) {
                    uses = {};
                }
                uses[prop] = true;
            }
        }, options, function (node, onMatch) {

            var call, args;

            if (!isArray(node)) {
                return false;
            }

            if (node[0] === 'name' && (node[1] === '__dirname' || node[1] === '__filename')) {
                return onMatch(node[1].substring(2));
            } else if (node[0] === 'var' && node[1] && node[1][0] && node[1][0][0] === 'exports') {
                //Hmm, a variable assignment for exports, so does not use cjs exports.
                return onMatch('varExports');
            } else if (node[0] === 'assign' && node[2] && node[2][0] === 'dot') {
                args = node[2][1];

                if (args) {
                    //An exports or module.exports assignment.
                    if (args[0] === 'name' && args[1] === 'module' &&
                        node[2][2] === 'exports') {
                        return onMatch('moduleExports');
                    } else if (args[0] === 'name' && args[1] === 'exports') {
                        return onMatch('exports');
                    }
                }
            } else if (node[0] === 'call') {
                call = node[1];
                args = node[2];

                if (call) {
                    //A require('') use.
                    if (call[0] === 'name' && call[1] === 'require' &&
                        args[0][0] === 'string') {
                        return onMatch('require');
                    }
                }
            }

            return false;

        });

        return uses;
    };


    parse.findRequireDepNames = function (node, deps) {
        var moduleName, i, n, call, args;

        if (isArray(node)) {
            if (node[0] === 'call') {
                call = node[1];
                args = node[2];

                if (call && call[0] === 'name' && call[1] === 'require') {
                    moduleName = args[0];
                    if (moduleName[0] === 'string') {
                        deps.push(moduleName[1]);
                    }
                }


            }

            //Check child nodes
            for (i = 0; i < node.length; i++) {
                n = node[i];
                this.findRequireDepNames(n, deps);
            }
        }
    };

    /**
     * Determines if a given node contains a require() definition.
     * @param {Array} node
     * @returns {Boolean}
     */
    parse.nodeHasRequire = function (node) {
        var i, n;

        if (this.isDefineNode(node)) {
            return true;
        }

        if (isArray(node)) {
            for (i = 0; i < node.length; i++) {
                n = node[i];
                if (this.nodeHasRequire(n)) {
                    return true;
                }
            }
        }

        return false;
    };

    /**
     * Is the given node the actual definition of define(). Actually uses
     * the definition of define.amd to find require.
     * @param {Array} node
     * @returns {Boolean}
     */
    parse.isDefineNode = function (node) {
        //Actually look for the define.amd = assignment, since
        //that is more indicative of RequireJS vs a plain require definition.
        var assign;
        if (!node) {
            return null;
        }

        if (node[0] === 'assign' && node[1] === true) {
            assign = node[2];
            if (assign[0] === 'dot' && assign[1][0] === 'name' &&
                assign[1][1] === 'define' && assign[2] === 'amd') {
                return true;
            }
        }
        return false;
    };

    /**
     * Determines if a specific node is a valid require or define/require.def call.
     * @param {Array} node
     * @param {Function} onMatch a function to call when a match is found.
     * It is passed the match name, and the config, name, deps possible args.
     * The config, name and deps args are not normalized.
     *
     * @returns {String} a JS source string with the valid require/define call.
     * Otherwise null.
     */
    parse.parseNode = function (node, onMatch) {
        var call, name, config, deps, args, cjsDeps;

        if (!isArray(node)) {
            return false;
        }

        if (node[0] === 'call') {
            call = node[1];
            args = node[2];

            if (call) {
                if (call[0] === 'name' &&
                   (call[1] === 'require' || call[1] === 'requirejs')) {

                    //It is a plain require() call.
                    config = args[0];
                    deps = args[1];
                    if (isArrayLiteral(config)) {
                        deps = config;
                        config = null;
                    }

                    deps = validateDeps(deps);
                    if (!deps) {
                        return null;
                    }

                    return onMatch("require", null, null, deps);

                } else if (call[0] === 'name' && call[1] === 'define') {

                    //A define call
                    name = args[0];
                    deps = args[1];
                    //Only allow define calls that match what is expected
                    //in an AMD call:
                    //* first arg should be string, array, function or object
                    //* second arg optional, or array, function or object.
                    //This helps weed out calls to a non-AMD define, but it is
                    //not completely robust. Someone could create a define
                    //function that still matches this shape, but this is the
                    //best that is possible, and at least allows UglifyJS,
                    //which does create its own internal define in one file,
                    //to be inlined.
                    if (((name[0] === 'string' || isArrayLiteral(name) ||
                          name[0] === 'function' || isObjectLiteral(name))) &&
                        (!deps || isArrayLiteral(deps) ||
                         deps[0] === 'function' || isObjectLiteral(deps) ||
                         // allow define(['dep'], factory) pattern
                         (isArrayLiteral(name) && deps[0] === 'name' && args.length === 2))) {

                        //If first arg is a function, could be a commonjs wrapper,
                        //look inside for commonjs dependencies.
                        //Also, if deps is a function look for commonjs deps.
                        if (name && name[0] === 'function') {
                            cjsDeps = parse.getAnonDepsFromNode(name);
                            if (cjsDeps.length) {
                                name = toAstArray(cjsDeps);
                            }
                        } else if (deps && deps[0] === 'function') {
                            cjsDeps = parse.getAnonDepsFromNode(deps);
                            if (cjsDeps.length) {
                                deps = toAstArray(cjsDeps);
                            }
                        }

                        return onMatch("define", null, name, deps);
                    }
                }
            }
        }

        return false;
    };

    /**
     * Looks for define(), require({} || []), requirejs({} || []) calls.
     */
    parse.findAmdOrRequireJsNode = function (node, onMatch) {
        var call, args, configNode, type;

        if (!isArray(node)) {
            return false;
        }

        if (node[0] === 'defun' && node[1] === 'define') {
            type = 'declaresDefine';
        } else if (node[0] === 'assign' && node[2] && node[2][2] === 'amd' &&
            node[2][1] && node[2][1][0] === 'name' &&
            node[2][1][1] === 'define') {
            type = 'defineAmd';
        } else if (node[0] === 'call') {
            call = node[1];
            args = node[2];

            if (call) {
                if ((call[0] === 'dot' &&
                   (call[1] && call[1][0] === 'name' &&
                    (call[1][1] === 'require' || call[1][1] === 'requirejs')) &&
                   call[2] === 'config')) {
                    //A require.config() or requirejs.config() call.
                    type = call[1][1] + 'Config';
                } else if (call[0] === 'name' &&
                   (call[1] === 'require' || call[1] === 'requirejs')) {
                    //A require() or requirejs() config call.
                    //Only want ones that start with an object or an array.
                    configNode = args[0];
                    if (configNode[0] === 'object' || configNode[0] === 'array') {
                        type = call[1];
                    }
                } else if (call[0] === 'name' && call[1] === 'define') {
                    //A define call.
                    type = 'define';
                }
            }
        }

        if (type) {
            return onMatch(type);
        }

        return false;
    };

    /**
     * Determines if a specific node is a valid require/requirejs config
     * call. That includes calls to require/requirejs.config().
     * @param {Array} node
     * @param {Function} onMatch a function to call when a match is found.
     * It is passed the match name, and the config, name, deps possible args.
     * The config, name and deps args are not normalized.
     *
     * @returns {String} a JS source string with the valid require/define call.
     * Otherwise null.
     */
    parse.parseConfigNode = function (node, onMatch) {
        var call, configNode, args;

        if (!isArray(node)) {
            return false;
        }

        if (node[0] === 'call') {
            call = node[1];
            args = node[2];

            if (call) {
                //A require.config() or requirejs.config() call.
                if ((call[0] === 'dot' &&
                   (call[1] && call[1][0] === 'name' &&
                    (call[1][1] === 'require' || call[1][1] === 'requirejs')) &&
                   call[2] === 'config') ||
                   //A require() or requirejs() config call.

                   (call[0] === 'name' &&
                   (call[1] === 'require' || call[1] === 'requirejs'))
                ) {
                    //It is a plain require() call.
                    configNode = args[0];

                    if (configNode[0] !== 'object') {
                        return null;
                    }

                    return onMatch(configNode);

                }
            }
        }

        return false;
    };

    /**
     * Converts an AST node into a JS source string. Does not maintain formatting
     * or even comments from original source, just returns valid JS source.
     * @param {Array} node
     * @returns {String} a JS source string.
     */
    parse.nodeToString = function (node) {
        return processor.gen_code(node, true);
    };

    /**
     * Extracts license comments from JS text.
     * @param {String} fileName
     * @param {String} contents
     * @returns {String} a string of license comments.
     */
    parse.getLicenseComments = function (fileName, contents) {
        var ast = esprima.parse(contents, {
                comment: true
            }),
            result = '',
            lineEnd = contents.indexOf('\r') === -1 ? '\n' : '\r\n',
            commentNode, refNode, subNode, value, i, j;

        if (ast.comments) {
            for (i = 0; i < ast.comments.length; i++) {
                commentNode = ast.comments[i];

                if (commentNode.type === 'Line') {
                    value = '//' + commentNode.value + lineEnd;
                    refNode = commentNode;

                    if (i + 1 >= ast.comments.length) {
                        value += lineEnd;
                    } else {
                        //Look for immediately adjacent single line comments since
                        //it could from a multiple line comment made out of single
                        //line comments. Like this comment.
                        for (j = i + 1; j < ast.comments.length; j++) {
                            subNode = ast.comments[j];
                            if (subNode.type === 'Line' && subNode.range[0] === refNode.range[1]) {
                                //Adjacent single line comment. Collect it.
                                value += '//' + subNode.value + lineEnd;
                                refNode = subNode;
                            } else {
                                //No more single line comment blocks. Break out
                                //and continue outer looping.
                                value += lineEnd;
                                i = j - 1;
                                break;
                            }
                        }
                    }
                } else {
                    value = '/*' + commentNode.value + '*/' + lineEnd + lineEnd;
                }

                if (value.indexOf('license') !== -1 ||
                    (commentNode.type === 'Block' && value.indexOf('/*!') === 0) ||
                    value.indexOf('opyright') !== -1 ||
                    value.indexOf('(c)') !== -1) {

                    result += value;
                }

            }
        }

        return result;
    };

    return parse;
});
/**
 * @license Copyright (c) 2012, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint */

define('transform', ['./esprima', './parse', 'logger'], function (esprima, parse, logger) {
    'use strict';

    return {
        toTransport: function (namespace, moduleName, path, contents, onFound) {

            var defineRanges = [],
                contentInsertion = '',
                depString = '',
                tokens, info, deps;

            try {
                tokens = esprima.parse(contents, {
                        tokens: true,
                        range: true
                    }).tokens;
            } catch(e) {
                logger.trace('toTransport skipping ' + path + ': ' +
                             e.toString());
                return contents;
            }

            //Find the define calls and their position in the files.
            tokens.forEach(function (token, i) {
                var namespaceExists = false,
                    prev, prev2, next, next2, next3, next4,
                    needsId, depAction, nameCommaRange, foundId;

                if (token.type === 'Identifier' && token.value === 'define') {
                    //Possible match. Do not want something.define calls
                    //though, and only defines follow by a paren
                    prev = tokens[i - 1];
                    next = tokens[i + 1];

                    if (prev && prev.type === 'Punctuator' &&
                        prev.value === '.') {
                        //a define on a sub-object, not a top level
                        //define() call. If the sub object is the
                        //namespace, then it is ok.
                        prev2 = tokens[i - 2];
                        if (!prev2) {
                            return;
                        }

                        //If the prev2 does not match namespace, then bail.
                        if (!namespace || prev2.type !== 'Identifier' ||
                            prev2.value !== namespace) {
                           return;
                        } else if (namespace) {
                            namespaceExists = true;
                        }
                    }

                    if (!next || next.type !== 'Punctuator' ||
                        next.value !== '(') {
                       //Not a define() function call. Bail.
                        return;
                    }

                    next2 = tokens[i + 2];
                    if (!next2) {
                        return;
                    }

                    //Figure out if this needs a named define call.
                    if (next2.type === 'Punctuator' &&
                        next2.value === '[') {
                        //Dependency array
                        needsId = true;
                        depAction = 'skip';
                    } else if (next2.type === 'Punctuator' &&
                               next2.value === '{') {
                        //Object literal
                        needsId = true;
                        depAction = 'skip';
                    } else if (next2.type === 'Keyword' &&
                               next2.value === 'function') {
                        //function
                        needsId = true;
                        depAction = 'scan';
                    } else if (next2.type === 'String') {
                        //Named module
                        needsId = false;

                        //The value includes the quotes around the string,
                        //so remove them.
                        foundId = next2.value.substring(1,
                                                        next2.value.length - 1);

                        //assumed it does not need dependencies injected

                        //If next argument is a function it means we need
                        //dependency scanning.
                        next3 = tokens[i + 3];
                        next4 = tokens[i + 4];
                        if (!next3 || !next4) {
                            return;
                        }

                        if (next3.type === 'Punctuator' &&
                            next3.value === ',' &&
                            next4.type === 'Keyword' &&
                            next4.value === 'function') {
                            depAction = 'scan';
                            nameCommaRange = next3.range;
                        } else {
                            depAction = 'skip';
                        }
                    } else if (next2.type === 'Identifier') {
                        //May be the define(factory); type.
                        next3 = tokens[i + 3];
                        if (!next3) {
                            return;
                        }
                        if (next3.type === 'Punctuator' &&
                            next3.value === ')') {
                            needsId = true;
                            depAction = 'empty';
                        } else {
                            return;
                        }
                    } else if (next2.type === 'Numeric') {
                        //May be the define(12345); type.
                        next3 = tokens[i + 3];
                        if (!next3) {
                            return;
                        }
                        if (next3.type === 'Punctuator' &&
                            next3.value === ')') {
                            needsId = true;
                            depAction = 'skip';
                        } else {
                            return;
                        }
                    } else if (next2.type === 'Punctuator' &&
                               next2.value === '-') {
                        //May be the define(-12345); type.
                        next3 = tokens[i + 3];
                        if (!next3) {
                            return;
                        }
                        if (next3.type === 'Numeric') {
                            next4 = tokens[i + 4];
                            if (!next4) {
                                return;
                            }
                            if (next4.type === 'Punctuator' &&
                                next4.value === ')') {
                                needsId = true;
                                depAction = 'skip';
                            } else {
                                return;
                            }
                        } else {
                            return;
                        }
                    } else {
                        //Not a match, skip it.
                        return;
                    }

                    defineRanges.push({
                        foundId: foundId,
                        needsId: needsId,
                        depAction: depAction,
                        namespaceExists: namespaceExists,
                        defineRange: token.range,
                        parenRange: next.range,
                        nameCommaRange: nameCommaRange
                    });
                }
            });

            //Only do naming and dependency injection if there is one define
            //call in the file.
            if (defineRanges.length > 1) {
                return contents;
            }
            if (!defineRanges.length) {
                return contents;
            }

            info = defineRanges[0];

            //Do the modifications "backwards", in other words, start with the
            //one that is farthest down and work up, so that the ranges in the
            //defineRanges still apply. So that means deps, id, then namespace.

            if (info.needsId && moduleName) {
                contentInsertion += "'" + moduleName + "',";
            }

            if (info.depAction === 'scan') {
                deps = parse.getAnonDeps(path, contents);

                if (deps.length) {
                    depString = '[' + deps.map(function (dep) {
                        return "'" + dep + "'";
                    }) + ']';
                } else {
                    depString = '[]';
                }
                depString +=  ',';

                if (info.nameCommaRange) {
                    //Already have a named module, need to insert the
                    //dependencies after the name.
                    contents = contents.substring(0, info.nameCommaRange[1]) +
                               depString +
                               contents.substring(info.nameCommaRange[1],
                                              contents.length);
                } else {
                    contentInsertion +=  depString;
                }
            } else if (info.depAction === 'empty') {
                contentInsertion += '[],';
            }

            if (contentInsertion) {
                contents = contents.substring(0, info.parenRange[1]) +
                           contentInsertion +
                           contents.substring(info.parenRange[1],
                                              contents.length);
            }

            //Do namespace last so that ui does not mess upthe parenRange
            //used above.
            if (namespace && !info.namespaceExists) {
                contents = contents.substring(0, info.defineRange[0]) +
                           namespace + '.' +
                           contents.substring(info.defineRange[0],
                                              contents.length);
            }


            //Notify any listener for the found info
            if (onFound) {
                onFound(info);
            }

            return contents;
        }
    };
});/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint regexp: true, plusplus: true  */
/*global define: false */

define('pragma', ['parse', 'logger'], function (parse, logger) {
    'use strict';
    function Temp() {}

    function create(obj, mixin) {
        Temp.prototype = obj;
        var temp = new Temp(), prop;

        //Avoid any extra memory hanging around
        Temp.prototype = null;

        if (mixin) {
            for (prop in mixin) {
                if (mixin.hasOwnProperty(prop) && !temp.hasOwnProperty(prop)) {
                    temp[prop] = mixin[prop];
                }
            }
        }

        return temp; // Object
    }

    var pragma = {
        conditionalRegExp: /(exclude|include)Start\s*\(\s*["'](\w+)["']\s*,(.*)\)/,
        useStrictRegExp: /['"]use strict['"];/g,
        hasRegExp: /has\s*\(\s*['"]([^'"]+)['"]\s*\)/g,
        nsRegExp: /(^|[^\.])(requirejs|require|define)(\.config)?\s*\(/g,
        nsWrapRegExp: /\/\*requirejs namespace: true \*\//,
        apiDefRegExp: /var requirejs, require, define;/,
        defineCheckRegExp: /typeof\s+define\s*===\s*["']function["']\s*&&\s*define\s*\.\s*amd/g,
        defineTypeFirstCheckRegExp: /\s*["']function["']\s*===\s*typeof\s+define\s*&&\s*define\s*\.\s*amd/g,
        defineJQueryRegExp: /typeof\s+define\s*===\s*["']function["']\s*&&\s*define\s*\.\s*amd\s*&&\s*define\s*\.\s*amd\s*\.\s*jQuery/g,
        defineHasRegExp: /typeof\s+define\s*==(=)?\s*['"]function['"]\s*&&\s*typeof\s+define\.amd\s*==(=)?\s*['"]object['"]\s*&&\s*define\.amd/g,
        defineTernaryRegExp: /typeof\s+define\s*===\s*['"]function["']\s*&&\s*define\s*\.\s*amd\s*\?\s*define/,
        amdefineRegExp: /if\s*\(\s*typeof define\s*\!==\s*'function'\s*\)\s*\{\s*[^\{\}]+amdefine[^\{\}]+\}/g,

        removeStrict: function (contents, config) {
            return config.useStrict ? contents : contents.replace(pragma.useStrictRegExp, '');
        },

        namespace: function (fileContents, ns, onLifecycleName) {
            if (ns) {
                //Namespace require/define calls
                fileContents = fileContents.replace(pragma.nsRegExp, '$1' + ns + '.$2$3(');

                //Namespace define ternary use:
                fileContents = fileContents.replace(pragma.defineTernaryRegExp,
                                                    "typeof " + ns + ".define === 'function' && " + ns + ".define.amd ? " + ns + ".define");

                //Namespace define jquery use:
                fileContents = fileContents.replace(pragma.defineJQueryRegExp,
                                                    "typeof " + ns + ".define === 'function' && " + ns + ".define.amd && " + ns + ".define.amd.jQuery");

                //Namespace has.js define use:
                fileContents = fileContents.replace(pragma.defineHasRegExp,
                                                    "typeof " + ns + ".define === 'function' && typeof " + ns + ".define.amd === 'object' && " + ns + ".define.amd");

                //Namespace define checks.
                //Do these ones last, since they are a subset of the more specific
                //checks above.
                fileContents = fileContents.replace(pragma.defineCheckRegExp,
                                                    "typeof " + ns + ".define === 'function' && " + ns + ".define.amd");
                fileContents = fileContents.replace(pragma.defineTypeFirstCheckRegExp,
                                                    "'function' === typeof " + ns + ".define && " + ns + ".define.amd");

                //Check for require.js with the require/define definitions
                if (pragma.apiDefRegExp.test(fileContents) &&
                    fileContents.indexOf("if (typeof " + ns + " === 'undefined')") === -1) {
                    //Wrap the file contents in a typeof check, and a function
                    //to contain the API globals.
                    fileContents = "var " + ns + ";(function () { if (typeof " +
                                    ns + " === 'undefined') {\n" +
                                    ns + ' = {};\n' +
                                    fileContents +
                                    "\n" +
                                    ns + ".requirejs = requirejs;" +
                                    ns + ".require = require;" +
                                    ns + ".define = define;\n" +
                                    "}\n}());";
                }

                //Finally, if the file wants a special wrapper because it ties
                //in to the requirejs internals in a way that would not fit
                //the above matches, do that. Look for /*requirejs namespace: true*/
                if (pragma.nsWrapRegExp.test(fileContents)) {
                    //Remove the pragma.
                    fileContents = fileContents.replace(pragma.nsWrapRegExp, '');

                    //Alter the contents.
                    fileContents = '(function () {\n' +
                                   'var require = ' + ns + '.require,' +
                                   'requirejs = ' + ns + '.requirejs,' +
                                   'define = ' + ns + '.define;\n' +
                                   fileContents +
                                   '\n}());';
                }
            }

            return fileContents;
        },

        /**
         * processes the fileContents for some //>> conditional statements
         */
        process: function (fileName, fileContents, config, onLifecycleName, pluginCollector) {
            /*jslint evil: true */
            var foundIndex = -1, startIndex = 0, lineEndIndex, conditionLine,
                matches, type, marker, condition, isTrue, endRegExp, endMatches,
                endMarkerIndex, shouldInclude, startLength, lifecycleHas, deps,
                i, dep, moduleName, collectorMod,
                lifecyclePragmas, pragmas = config.pragmas, hasConfig = config.has,
                //Legacy arg defined to help in dojo conversion script. Remove later
                //when dojo no longer needs conversion:
                kwArgs = pragmas;

            //Mix in a specific lifecycle scoped object, to allow targeting
            //some pragmas/has tests to only when files are saved, or at different
            //lifecycle events. Do not bother with kwArgs in this section, since
            //the old dojo kwArgs were for all points in the build lifecycle.
            if (onLifecycleName) {
                lifecyclePragmas = config['pragmas' + onLifecycleName];
                lifecycleHas = config['has' + onLifecycleName];

                if (lifecyclePragmas) {
                    pragmas = create(pragmas || {}, lifecyclePragmas);
                }

                if (lifecycleHas) {
                    hasConfig = create(hasConfig || {}, lifecycleHas);
                }
            }

            //Replace has references if desired
            if (hasConfig) {
                fileContents = fileContents.replace(pragma.hasRegExp, function (match, test) {
                    if (hasConfig.hasOwnProperty(test)) {
                        return !!hasConfig[test];
                    }
                    return match;
                });
            }

            if (!config.skipPragmas) {

                while ((foundIndex = fileContents.indexOf("//>>", startIndex)) !== -1) {
                    //Found a conditional. Get the conditional line.
                    lineEndIndex = fileContents.indexOf("\n", foundIndex);
                    if (lineEndIndex === -1) {
                        lineEndIndex = fileContents.length - 1;
                    }

                    //Increment startIndex past the line so the next conditional search can be done.
                    startIndex = lineEndIndex + 1;

                    //Break apart the conditional.
                    conditionLine = fileContents.substring(foundIndex, lineEndIndex + 1);
                    matches = conditionLine.match(pragma.conditionalRegExp);
                    if (matches) {
                        type = matches[1];
                        marker = matches[2];
                        condition = matches[3];
                        isTrue = false;
                        //See if the condition is true.
                        try {
                            isTrue = !!eval("(" + condition + ")");
                        } catch (e) {
                            throw "Error in file: " +
                                   fileName +
                                   ". Conditional comment: " +
                                   conditionLine +
                                   " failed with this error: " + e;
                        }

                        //Find the endpoint marker.
                        endRegExp = new RegExp('\\/\\/\\>\\>\\s*' + type + 'End\\(\\s*[\'"]' + marker + '[\'"]\\s*\\)', "g");
                        endMatches = endRegExp.exec(fileContents.substring(startIndex, fileContents.length));
                        if (endMatches) {
                            endMarkerIndex = startIndex + endRegExp.lastIndex - endMatches[0].length;

                            //Find the next line return based on the match position.
                            lineEndIndex = fileContents.indexOf("\n", endMarkerIndex);
                            if (lineEndIndex === -1) {
                                lineEndIndex = fileContents.length - 1;
                            }

                            //Should we include the segment?
                            shouldInclude = ((type === "exclude" && !isTrue) || (type === "include" && isTrue));

                            //Remove the conditional comments, and optionally remove the content inside
                            //the conditional comments.
                            startLength = startIndex - foundIndex;
                            fileContents = fileContents.substring(0, foundIndex) +
                                (shouldInclude ? fileContents.substring(startIndex, endMarkerIndex) : "") +
                                fileContents.substring(lineEndIndex + 1, fileContents.length);

                            //Move startIndex to foundIndex, since that is the new position in the file
                            //where we need to look for more conditionals in the next while loop pass.
                            startIndex = foundIndex;
                        } else {
                            throw "Error in file: " +
                                  fileName +
                                  ". Cannot find end marker for conditional comment: " +
                                  conditionLine;

                        }
                    }
                }
            }

            //If need to find all plugin resources to optimize, do that now,
            //before namespacing, since the namespacing will change the API
            //names.
            //If there is a plugin collector, scan the file for plugin resources.
            if (config.optimizeAllPluginResources && pluginCollector) {
                try {
                    deps = parse.findDependencies(fileName, fileContents);
                    if (deps.length) {
                        for (i = 0; i < deps.length; i++) {
                            dep = deps[i];
                            if (dep.indexOf('!') !== -1) {
                                collectorMod = pluginCollector[moduleName];
                                if (!collectorMod) {
                                 collectorMod = pluginCollector[moduleName] = [];
                                }
                                collectorMod.push(dep);
                            }
                        }
                    }
                } catch (eDep) {
                    logger.error('Parse error looking for plugin resources in ' +
                                 fileName + ', skipping.');
                }
            }

            //Strip amdefine use for node-shared modules.
            fileContents = fileContents.replace(pragma.amdefineRegExp, '');

            //Do namespacing
            if (onLifecycleName === 'OnSave' && config.namespace) {
                fileContents = pragma.namespace(fileContents, config.namespace, onLifecycleName);
            }


            return pragma.removeStrict(fileContents, config);
        }
    };

    return pragma;
});
if(env === 'node') {
/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false */
/*global define: false */

define('node/optimize', {});

}

if(env === 'rhino') {
/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint strict: false, plusplus: false */
/*global define: false, java: false, Packages: false */

define('rhino/optimize', ['logger'], function (logger) {

    //Add .reduce to Rhino so UglifyJS can run in Rhino,
    //inspired by https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/reduce
    //but rewritten for brevity, and to be good enough for use by UglifyJS.
    if (!Array.prototype.reduce) {
        Array.prototype.reduce = function (fn /*, initialValue */) {
            var i = 0,
                length = this.length,
                accumulator;

            if (arguments.length >= 2) {
                accumulator = arguments[1];
            } else {
                do {
                    if (i in this) {
                        accumulator = this[i++];
                        break;
                    }
                }
                while (true);
            }

            for (; i < length; i++) {
                if (i in this) {
                    accumulator = fn.call(undefined, accumulator, this[i], i, this);
                }
            }

            return accumulator;
        };
    }

    var JSSourceFilefromCode, optimize;

    //Bind to Closure compiler, but if it is not available, do not sweat it.
    try {
        JSSourceFilefromCode = java.lang.Class.forName('com.google.javascript.jscomp.JSSourceFile').getMethod('fromCode', [java.lang.String, java.lang.String]);
    } catch (e) {}

    //Helper for closure compiler, because of weird Java-JavaScript interactions.
    function closurefromCode(filename, content) {
        return JSSourceFilefromCode.invoke(null, [filename, content]);
    }

    optimize = {
        closure: function (fileName, fileContents, keepLines, config) {
            config = config || {};
            var jscomp = Packages.com.google.javascript.jscomp,
                flags = Packages.com.google.common.flags,
                //Fake extern
                externSourceFile = closurefromCode("fakeextern.js", " "),
                //Set up source input
                jsSourceFile = closurefromCode(String(fileName), String(fileContents)),
                options, option, FLAG_compilation_level, compiler,
                Compiler = Packages.com.google.javascript.jscomp.Compiler,
                result;

            logger.trace("Minifying file: " + fileName);

            //Set up options
            options = new jscomp.CompilerOptions();
            for (option in config.CompilerOptions) {
                // options are false by default and jslint wanted an if statement in this for loop
                if (config.CompilerOptions[option]) {
                    options[option] = config.CompilerOptions[option];
                }

            }
            options.prettyPrint = keepLines || options.prettyPrint;

            FLAG_compilation_level = jscomp.CompilationLevel[config.CompilationLevel || 'SIMPLE_OPTIMIZATIONS'];
            FLAG_compilation_level.setOptionsForCompilationLevel(options);

            //Trigger the compiler
            Compiler.setLoggingLevel(Packages.java.util.logging.Level[config.loggingLevel || 'WARNING']);
            compiler = new Compiler();

            result = compiler.compile(externSourceFile, jsSourceFile, options);
            if (!result.success) {
                logger.error('Cannot closure compile file: ' + fileName + '. Skipping it.');
            } else {
                fileContents = compiler.toSource();
            }

            return fileContents;
        }
    };

    return optimize;
});
}
/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint plusplus: true, nomen: true, regexp: true */
/*global define: false */

define('optimize', [ 'lang', 'logger', 'env!env/optimize', 'env!env/file', 'parse',
         'pragma', 'uglifyjs/index'],
function (lang,   logger,   envOptimize,        file,           parse,
          pragma, uglify) {
    'use strict';

    var optimize,
        cssImportRegExp = /\@import\s+(url\()?\s*([^);]+)\s*(\))?([\w, ]*)(;)?/g,
        cssCommentImportRegExp = /\/\*[^\*]*@import[^\*]*\*\//g,
        cssUrlRegExp = /\url\(\s*([^\)]+)\s*\)?/g;

    /**
     * If an URL from a CSS url value contains start/end quotes, remove them.
     * This is not done in the regexp, since my regexp fu is not that strong,
     * and the CSS spec allows for ' and " in the URL if they are backslash escaped.
     * @param {String} url
     */
    function cleanCssUrlQuotes(url) {
        //Make sure we are not ending in whitespace.
        //Not very confident of the css regexps above that there will not be ending
        //whitespace.
        url = url.replace(/\s+$/, "");

        if (url.charAt(0) === "'" || url.charAt(0) === "\"") {
            url = url.substring(1, url.length - 1);
        }

        return url;
    }

    /**
     * Inlines nested stylesheets that have @import calls in them.
     * @param {String} fileName the file name
     * @param {String} fileContents the file contents
     * @param {String} cssImportIgnore comma delimited string of files to ignore
     * @param {Object} included an object used to track the files already imported
     */
    function flattenCss(fileName, fileContents, cssImportIgnore, included) {
        //Find the last slash in the name.
        fileName = fileName.replace(lang.backSlashRegExp, "/");
        var endIndex = fileName.lastIndexOf("/"),
            //Make a file path based on the last slash.
            //If no slash, so must be just a file name. Use empty string then.
            filePath = (endIndex !== -1) ? fileName.substring(0, endIndex + 1) : "",
            //store a list of merged files
            importList = [],
            skippedList = [];

        //First make a pass by removing an commented out @import calls.
        fileContents = fileContents.replace(cssCommentImportRegExp, '');

        //Make sure we have a delimited ignore list to make matching faster
        if (cssImportIgnore && cssImportIgnore.charAt(cssImportIgnore.length - 1) !== ",") {
            cssImportIgnore += ",";
        }

        fileContents = fileContents.replace(cssImportRegExp, function (fullMatch, urlStart, importFileName, urlEnd, mediaTypes) {
            //Only process media type "all" or empty media type rules.
            if (mediaTypes && ((mediaTypes.replace(/^\s\s*/, '').replace(/\s\s*$/, '')) !== "all")) {
                skippedList.push(fileName);
                return fullMatch;
            }

            importFileName = cleanCssUrlQuotes(importFileName);

            //Ignore the file import if it is part of an ignore list.
            if (cssImportIgnore && cssImportIgnore.indexOf(importFileName + ",") !== -1) {
                return fullMatch;
            }

            //Make sure we have a unix path for the rest of the operation.
            importFileName = importFileName.replace(lang.backSlashRegExp, "/");

            try {
                //if a relative path, then tack on the filePath.
                //If it is not a relative path, then the readFile below will fail,
                //and we will just skip that import.
                var fullImportFileName = importFileName.charAt(0) === "/" ? importFileName : filePath + importFileName,
                    importContents = file.readFile(fullImportFileName), i,
                    importEndIndex, importPath, fixedUrlMatch, colonIndex, parts, flat;

                //Skip the file if it has already been included.
                if (included[fullImportFileName]) {
                    return '';
                }
                included[fullImportFileName] = true;

                //Make sure to flatten any nested imports.
                flat = flattenCss(fullImportFileName, importContents, cssImportIgnore, included);
                importContents = flat.fileContents;

                if (flat.importList.length) {
                    importList.push.apply(importList, flat.importList);
                }
                if (flat.skippedList.length) {
                    skippedList.push.apply(skippedList, flat.skippedList);
                }

                //Make the full import path
                importEndIndex = importFileName.lastIndexOf("/");

                //Make a file path based on the last slash.
                //If no slash, so must be just a file name. Use empty string then.
                importPath = (importEndIndex !== -1) ? importFileName.substring(0, importEndIndex + 1) : "";

                //fix url() on relative import (#5)
                importPath = importPath.replace(/^\.\//, '');

                //Modify URL paths to match the path represented by this file.
                importContents = importContents.replace(cssUrlRegExp, function (fullMatch, urlMatch) {
                    fixedUrlMatch = cleanCssUrlQuotes(urlMatch);
                    fixedUrlMatch = fixedUrlMatch.replace(lang.backSlashRegExp, "/");

                    //Only do the work for relative URLs. Skip things that start with / or have
                    //a protocol.
                    colonIndex = fixedUrlMatch.indexOf(":");
                    if (fixedUrlMatch.charAt(0) !== "/" && (colonIndex === -1 || colonIndex > fixedUrlMatch.indexOf("/"))) {
                        //It is a relative URL, tack on the path prefix
                        urlMatch = importPath + fixedUrlMatch;
                    } else {
                        logger.trace(importFileName + "\n  URL not a relative URL, skipping: " + urlMatch);
                    }

                    //Collapse .. and .
                    parts = urlMatch.split("/");
                    for (i = parts.length - 1; i > 0; i--) {
                        if (parts[i] === ".") {
                            parts.splice(i, 1);
                        } else if (parts[i] === "..") {
                            if (i !== 0 && parts[i - 1] !== "..") {
                                parts.splice(i - 1, 2);
                                i -= 1;
                            }
                        }
                    }

                    return "url(" + parts.join("/") + ")";
                });

                importList.push(fullImportFileName);
                return importContents;
            } catch (e) {
                logger.warn(fileName + "\n  Cannot inline css import, skipping: " + importFileName);
                return fullMatch;
            }
        });

        return {
            importList : importList,
            skippedList: skippedList,
            fileContents : fileContents
        };
    }

    optimize = {
        /**
         * Optimizes a file that contains JavaScript content. Optionally collects
         * plugin resources mentioned in a file, and then passes the content
         * through an minifier if one is specified via config.optimize.
         *
         * @param {String} fileName the name of the file to optimize
         * @param {String} fileContents the contents to optimize. If this is
         * a null value, then fileName will be used to read the fileContents.
         * @param {String} outFileName the name of the file to use for the
         * saved optimized content.
         * @param {Object} config the build config object.
         * @param {Array} [pluginCollector] storage for any plugin resources
         * found.
         */
        jsFile: function (fileName, fileContents, outFileName, config, pluginCollector) {
            if (!fileContents) {
                fileContents = file.readFile(fileName);
            }

            fileContents = optimize.js(fileName, fileContents, config, pluginCollector);

            file.saveUtf8File(outFileName, fileContents);
        },

        /**
         * Optimizes a file that contains JavaScript content. Optionally collects
         * plugin resources mentioned in a file, and then passes the content
         * through an minifier if one is specified via config.optimize.
         *
         * @param {String} fileName the name of the file that matches the
         * fileContents.
         * @param {String} fileContents the string of JS to optimize.
         * @param {Object} [config] the build config object.
         * @param {Array} [pluginCollector] storage for any plugin resources
         * found.
         */
        js: function (fileName, fileContents, config, pluginCollector) {
            var parts = (String(config.optimize)).split('.'),
                optimizerName = parts[0],
                keepLines = parts[1] === 'keepLines',
                licenseContents = '',
                optFunc;

            config = config || {};

            //Apply pragmas/namespace renaming
            fileContents = pragma.process(fileName, fileContents, config, 'OnSave', pluginCollector);

            //Optimize the JS files if asked.
            if (optimizerName && optimizerName !== 'none') {
                optFunc = envOptimize[optimizerName] || optimize.optimizers[optimizerName];
                if (!optFunc) {
                    throw new Error('optimizer with name of "' +
                                    optimizerName +
                                    '" not found for this environment');
                }

                if (config.preserveLicenseComments) {
                    //Pull out any license comments for prepending after optimization.
                    try {
                        licenseContents = parse.getLicenseComments(fileName, fileContents);
                    } catch (e) {
                        logger.error('Cannot parse file: ' + fileName + ' for comments. Skipping it. Error is:\n' + e.toString());
                    }
                }

                fileContents = licenseContents + optFunc(fileName, fileContents, keepLines,
                                        config[optimizerName]);
            }

            return fileContents;
        },

        /**
         * Optimizes one CSS file, inlining @import calls, stripping comments, and
         * optionally removes line returns.
         * @param {String} fileName the path to the CSS file to optimize
         * @param {String} outFileName the path to save the optimized file.
         * @param {Object} config the config object with the optimizeCss and
         * cssImportIgnore options.
         */
        cssFile: function (fileName, outFileName, config) {

            //Read in the file. Make sure we have a JS string.
            var originalFileContents = file.readFile(fileName),
                flat = flattenCss(fileName, originalFileContents, config.cssImportIgnore, {}),
                //Do not use the flattened CSS if there was one that was skipped.
                fileContents = flat.skippedList.length ? originalFileContents : flat.fileContents,
                startIndex, endIndex, buildText, comment;

            if (flat.skippedList.length) {
                logger.warn('Cannot inline @imports for ' + fileName +
                            ',\nthe following files had media queries in them:\n' +
                            flat.skippedList.join('\n'));
            }

            //Do comment removal.
            try {
                if (config.optimizeCss.indexOf(".keepComments") === -1) {
                    startIndex = 0;
                    //Get rid of comments.
                    while ((startIndex = fileContents.indexOf("/*", startIndex)) !== -1) {
                        endIndex = fileContents.indexOf("*/", startIndex + 2);
                        if (endIndex === -1) {
                            throw "Improper comment in CSS file: " + fileName;
                        }
                        comment = fileContents.substring(startIndex, endIndex);

                        if (config.preserveLicenseComments &&
                            (comment.indexOf('license') !== -1 ||
                             comment.indexOf('opyright') !== -1 ||
                             comment.indexOf('(c)') !== -1)) {
                            //Keep the comment, just increment the startIndex
                            startIndex = endIndex;
                        } else {
                            fileContents = fileContents.substring(0, startIndex) + fileContents.substring(endIndex + 2, fileContents.length);
                            startIndex = 0;
                        }
                    }
                }
                //Get rid of newlines.
                if (config.optimizeCss.indexOf(".keepLines") === -1) {
                    fileContents = fileContents.replace(/[\r\n]/g, "");
                    fileContents = fileContents.replace(/\s+/g, " ");
                    fileContents = fileContents.replace(/\{\s/g, "{");
                    fileContents = fileContents.replace(/\s\}/g, "}");
                } else {
                    //Remove multiple empty lines.
                    fileContents = fileContents.replace(/(\r\n)+/g, "\r\n");
                    fileContents = fileContents.replace(/(\n)+/g, "\n");
                }
            } catch (e) {
                fileContents = originalFileContents;
                logger.error("Could not optimized CSS file: " + fileName + ", error: " + e);
            }

            file.saveUtf8File(outFileName, fileContents);

            //text output to stdout and/or written to build.txt file
            buildText = "\n"+ outFileName.replace(config.dir, "") +"\n----------------\n";
            flat.importList.push(fileName);
            buildText += flat.importList.map(function(path){
                return path.replace(config.dir, "");
            }).join("\n");
            return buildText +"\n";
        },

        /**
         * Optimizes CSS files, inlining @import calls, stripping comments, and
         * optionally removes line returns.
         * @param {String} startDir the path to the top level directory
         * @param {Object} config the config object with the optimizeCss and
         * cssImportIgnore options.
         */
        css: function (startDir, config) {
            var buildText = "",
                i, fileName, fileList;
            if (config.optimizeCss.indexOf("standard") !== -1) {
                fileList = file.getFilteredFileList(startDir, /\.css$/, true);
                if (fileList) {
                    for (i = 0; i < fileList.length; i++) {
                        fileName = fileList[i];
                        logger.trace("Optimizing (" + config.optimizeCss + ") CSS file: " + fileName);
                        buildText += optimize.cssFile(fileName, fileName, config);
                    }
                }
            }
            return buildText;
        },

        optimizers: {
            uglify: function (fileName, fileContents, keepLines, config) {
                var parser = uglify.parser,
                    processor = uglify.uglify,
                    ast, errMessage, errMatch;

                config = config || {};

                logger.trace("Uglifying file: " + fileName);

                try {
                    ast = parser.parse(fileContents, config.strict_semicolons);
                    ast = processor.ast_mangle(ast, config);
                    ast = processor.ast_squeeze(ast, config);

                    fileContents = processor.gen_code(ast, config);

                    if (config.max_line_length) {
                        fileContents = processor.split_lines(fileContents, config.max_line_length);
                    }
                } catch (e) {
                    errMessage = e.toString();
                    errMatch = /\nError(\r)?\n/.exec(errMessage);
                    if (errMatch) {
                        errMessage = errMessage.substring(0, errMatch.index);
                    }
                    logger.error('Cannot uglify file: ' + fileName + '. Skipping it. Error is:\n' + errMessage);
                }
                return fileContents;
            }
        }
    };

    return optimize;
});
/**
 * @license RequireJS Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */
/*
 * This file patches require.js to communicate with the build system.
 */

//Using sloppy since this uses eval for some code like plugins,
//which may not be strict mode compliant. So if use strict is used
//below they will have strict rules applied and may cause an error.
/*jslint sloppy: true, nomen: true, plusplus: true, regexp: true */
/*global require, define: true */

//NOT asking for require as a dependency since the goal is to modify the
//global require below
define('requirePatch', [ 'env!env/file', 'pragma', 'parse', 'lang', 'logger'],
function (file,           pragma,   parse,   lang,   logger) {

    var allowRun = true;

    //This method should be called when the patches to require should take hold.
    return function () {
        if (!allowRun) {
            return;
        }
        allowRun = false;

        var layer,
            pluginBuilderRegExp = /(["']?)pluginBuilder(["']?)\s*[=\:]\s*["']([^'"\s]+)["']/,
            oldNewContext = require.s.newContext,
            oldDef;

        //Stored cached file contents for reuse in other layers.
        require._cachedFileContents = {};

        /**
         * Makes sure the URL is something that can be supported by the
         * optimization tool.
         * @param {String} url
         * @returns {Boolean}
         */
        require._isSupportedBuildUrl = function (url) {
            //Ignore URLs with protocols, hosts or question marks, means either network
            //access is needed to fetch it or it is too dynamic. Note that
            //on Windows, full paths are used for some urls, which include
            //the drive, like c:/something, so need to test for something other
            //than just a colon.
            if (url.indexOf("://") === -1 && url.indexOf("?") === -1 &&
                   url.indexOf('empty:') !== 0 && url.indexOf('//') !== 0) {
                return true;
            } else {
                if (!layer.ignoredUrls[url]) {
                    logger.info('Cannot optimize network URL, skipping: ' + url);
                    layer.ignoredUrls[url] = true;
                }
                return false;
            }
        };

        function normalizeUrlWithBase(context, moduleName, url) {
            //Adjust the URL if it was not transformed to use baseUrl.
            if (require.jsExtRegExp.test(moduleName)) {
                url = (context.config.dir || context.config.dirBaseUrl) + url;
            }
            return url;
        }

        //Overrides the new context call to add existing tracking features.
        require.s.newContext = function (name) {
            var context = oldNewContext(name),
                oldEnable = context.enable,
                moduleProto = context.Module.prototype,
                oldInit = moduleProto.init,
                oldCallPlugin = moduleProto.callPlugin;

            //Only do this for the context used for building.
            if (name === '_') {
                context.needFullExec = {};
                context.fullExec = {};
                context.plugins = {};

                //Override the shim exports function generator to just
                //spit out strings that can be used in the stringified
                //build output.
                context.makeShimExports = function (exports) {
                    var result;
                    if (typeof exports === 'string') {
                        result = function () {
                            return '(function (global) {\n' +
                            '    return function () {\n' +
                            '        return global.' + exports + ';\n' +
                            '    }\n' +
                            '}(this))';
                        };
                    } else {
                        result = function () {
                            return '(function (global) {\n' +
                            '    return function () {\n' +
                            '        var func = ' + exports.toString() + ';\n' +
                            '        return func.apply(global, arguments);\n' +
                            '    }\n' +
                            '}(this))';
                        };
                    }

                    //Mark the result has being tranformed by the build already.
                    result.__buildReady = true;
                    return result;
                };

                context.enable = function (depMap, parent) {
                    var id = depMap.id,
                        parentId = parent && parent.map.id,
                        needFullExec = context.needFullExec,
                        fullExec = context.fullExec,
                        mod = context.registry[id];

                    if (mod && !mod.defined) {
                        if (parentId && needFullExec[parentId]) {
                            needFullExec[id] = true;
                        }
                    } else if ((needFullExec[id] && !fullExec[id]) ||
                               (parentId && needFullExec[parentId] && !fullExec[id])) {
                        context.undef(id);
                    }

                    return oldEnable.apply(context, arguments);
                };

                //Override load so that the file paths can be collected.
                context.load = function (moduleName, url) {
                    /*jslint evil: true */
                    var contents, pluginBuilderMatch, builderName;

                    //Do not mark the url as fetched if it is
                    //not an empty: URL, used by the optimizer.
                    //In that case we need to be sure to call
                    //load() for each module that is mapped to
                    //empty: so that dependencies are satisfied
                    //correctly.
                    if (url.indexOf('empty:') === 0) {
                        delete context.urlFetched[url];
                    }

                    //Only handle urls that can be inlined, so that means avoiding some
                    //URLs like ones that require network access or may be too dynamic,
                    //like JSONP
                    if (require._isSupportedBuildUrl(url)) {
                        //Adjust the URL if it was not transformed to use baseUrl.
                        url = normalizeUrlWithBase(context, moduleName, url);

                        //Save the module name to path  and path to module name mappings.
                        layer.buildPathMap[moduleName] = url;
                        layer.buildFileToModule[url] = moduleName;

                        if (context.plugins.hasOwnProperty(moduleName)) {
                            //plugins need to have their source evaled as-is.
                            context.needFullExec[moduleName] = true;
                        }

                        try {
                            if (require._cachedFileContents.hasOwnProperty(url) &&
                                (!context.needFullExec[moduleName] || context.fullExec[moduleName])) {
                                contents = require._cachedFileContents[url];
                            } else {
                                //Load the file contents, process for conditionals, then
                                //evaluate it.
                                contents = file.readFile(url);

                                //If there is a read filter, run it now.
                                if (context.config.onBuildRead) {
                                    contents = context.config.onBuildRead(moduleName, url, contents);
                                }

                                contents = pragma.process(url, contents, context.config, 'OnExecute');

                                //Find out if the file contains a require() definition. Need to know
                                //this so we can inject plugins right after it, but before they are needed,
                                //and to make sure this file is first, so that define calls work.
                                //This situation mainly occurs when the build is done on top of the output
                                //of another build, where the first build may include require somewhere in it.
                                try {
                                    if (!layer.existingRequireUrl && parse.definesRequire(url, contents)) {
                                        layer.existingRequireUrl = url;
                                    }
                                } catch (e1) {
                                    throw new Error('Parse error using UglifyJS ' +
                                                    'for file: ' + url + '\n' + e1);
                                }

                                if (context.plugins.hasOwnProperty(moduleName)) {
                                    //This is a loader plugin, check to see if it has a build extension,
                                    //otherwise the plugin will act as the plugin builder too.
                                    pluginBuilderMatch = pluginBuilderRegExp.exec(contents);
                                    if (pluginBuilderMatch) {
                                        //Load the plugin builder for the plugin contents.
                                        builderName = context.makeModuleMap(pluginBuilderMatch[3],
                                                                            context.makeModuleMap(moduleName),
                                                                            null,
                                                                            true).id;
                                        contents = file.readFile(context.nameToUrl(builderName));
                                    }
                                }

                                //Parse out the require and define calls.
                                //Do this even for plugins in case they have their own
                                //dependencies that may be separate to how the pluginBuilder works.
                                try {
                                    if (!context.needFullExec[moduleName]) {
                                        contents = parse(moduleName, url, contents, {
                                            insertNeedsDefine: true,
                                            has: context.config.has,
                                            findNestedDependencies: context.config.findNestedDependencies
                                        });
                                    }
                                } catch (e2) {
                                    throw new Error('Parse error using UglifyJS ' +
                                                    'for file: ' + url + '\n' + e2);
                                }

                                require._cachedFileContents[url] = contents;
                            }

                            if (contents) {
                                eval(contents);
                            }

                            //Need to close out completion of this module
                            //so that listeners will get notified that it is available.
                            try {
                                context.completeLoad(moduleName);
                            } catch (e) {
                                //Track which module could not complete loading.
                                if (!e.moduleTree) {
                                    e.moduleTree = [];
                                }
                                e.moduleTree.push(moduleName);
                                throw e;
                            }

                        } catch (eOuter) {
                            if (!eOuter.fileName) {
                                eOuter.fileName = url;
                            }
                            throw eOuter;
                        }
                    } else {
                        //With unsupported URLs still need to call completeLoad to
                        //finish loading.
                        context.completeLoad(moduleName);
                    }
                };

                //Marks module has having a name, and optionally executes the
                //callback, but only if it meets certain criteria.
                context.execCb = function (name, cb, args, exports) {
                    if (!layer.needsDefine[name]) {
                        layer.modulesWithNames[name] = true;
                    }
                    if (cb.__requireJsBuild || layer.context.needFullExec[name]) {
                        return cb.apply(exports, args);
                    }
                    return undefined;
                };

                moduleProto.init = function(depMaps) {
                    if (context.needFullExec[this.map.id]) {
                        lang.each(depMaps, lang.bind(this, function (depMap) {
                            if (typeof depMap === 'string') {
                                depMap = context.makeModuleMap(depMap,
                                               (this.map.isDefine ? this.map : this.map.parentMap));
                            }

                            if (!context.fullExec[depMap.id]) {
                                context.undef(depMap.id);
                            }
                        }));
                    }

                    return oldInit.apply(this, arguments);
                };

                moduleProto.callPlugin = function () {
                    var map = this.map,
                        pluginMap = context.makeModuleMap(map.prefix),
                        pluginId = pluginMap.id,
                        pluginMod = context.registry[pluginId];

                    context.plugins[pluginId] = true;
                    context.needFullExec[pluginId] = true;

                    //If the module is not waiting to finish being defined,
                    //undef it and start over, to get full execution.
                    if (!context.fullExec[pluginId] && (!pluginMod || pluginMod.defined)) {
                        context.undef(pluginMap.id);
                    }

                    return oldCallPlugin.apply(this, arguments);
                };
            }

            return context;
        };

        //Clear up the existing context so that the newContext modifications
        //above will be active.
        delete require.s.contexts._;

        /** Reset state for each build layer pass. */
        require._buildReset = function () {
            var oldContext = require.s.contexts._;

            //Clear up the existing context.
            delete require.s.contexts._;

            //Set up new context, so the layer object can hold onto it.
            require({});

            layer = require._layer = {
                buildPathMap: {},
                buildFileToModule: {},
                buildFilePaths: [],
                pathAdded: {},
                modulesWithNames: {},
                needsDefine: {},
                existingRequireUrl: "",
                ignoredUrls: {},
                context: require.s.contexts._
            };

            //Return the previous context in case it is needed, like for
            //the basic config object.
            return oldContext;
        };

        require._buildReset();

        //Override define() to catch modules that just define an object, so that
        //a dummy define call is not put in the build file for them. They do
        //not end up getting defined via context.execCb, so we need to catch them
        //at the define call.
        oldDef = define;

        //This function signature does not have to be exact, just match what we
        //are looking for.
        define = function (name) {
            if (typeof name === "string" && !layer.needsDefine[name]) {
                layer.modulesWithNames[name] = true;
            }
            return oldDef.apply(require, arguments);
        };

        define.amd = oldDef.amd;

        //Add some utilities for plugins
        require._readFile = file.readFile;
        require._fileExists = function (path) {
            return file.exists(path);
        };

        //Called when execManager runs for a dependency. Used to figure out
        //what order of execution.
        require.onResourceLoad = function (context, map) {
            var id = map.id,
                url;

            //If build needed a full execution, indicate it
            //has been done now. But only do it if the context is tracking
            //that. Only valid for the context used in a build, not for
            //other contexts being run, like for useLib, plain requirejs
            //use in node/rhino.
            if (context.needFullExec && context.needFullExec[id]) {
                context.fullExec[id] = true;
            }

            //A plugin.
            if (map.prefix) {
                if (!layer.pathAdded[id]) {
                    layer.buildFilePaths.push(id);
                    //For plugins the real path is not knowable, use the name
                    //for both module to file and file to module mappings.
                    layer.buildPathMap[id] = id;
                    layer.buildFileToModule[id] = id;
                    layer.modulesWithNames[id] = true;
                    layer.pathAdded[id] = true;
                }
            } else if (map.url && require._isSupportedBuildUrl(map.url)) {
                //If the url has not been added to the layer yet, and it
                //is from an actual file that was loaded, add it now.
                url = normalizeUrlWithBase(context, id, map.url);
                if (!layer.pathAdded[url] && layer.buildPathMap[id]) {
                    //Remember the list of dependencies for this layer.
                    layer.buildFilePaths.push(url);
                    layer.pathAdded[url] = true;
                }
            }
        };

        //Called by output of the parse() function, when a file does not
        //explicitly call define, probably just require, but the parse()
        //function normalizes on define() for dependency mapping and file
        //ordering works correctly.
        require.needsDefine = function (moduleName) {
            layer.needsDefine[moduleName] = true;
        };
    };
});
/**
 * @license RequireJS Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint plusplus: false, regexp: false, strict: false */
/*global define: false, console: false */

define('commonJs', ['env!env/file', 'uglifyjs/index'], function (file, uglify) {
    var commonJs = {
        depRegExp: /require\s*\(\s*["']([\w-_\.\/]+)["']\s*\)/g,

        //Set this to false in non-rhino environments. If rhino, then it uses
        //rhino's decompiler to remove comments before looking for require() calls,
        //otherwise, it will use a crude regexp approach to remove comments. The
        //rhino way is more robust, but he regexp is more portable across environments.
        useRhino: true,

        //Set to false if you do not want this file to log. Useful in environments
        //like node where you want the work to happen without noise.
        useLog: true,

        convertDir: function (commonJsPath, savePath) {
            var fileList, i,
                jsFileRegExp = /\.js$/,
                fileName, convertedFileName, fileContents;

            //Get list of files to convert.
            fileList = file.getFilteredFileList(commonJsPath, /\w/, true);

            //Normalize on front slashes and make sure the paths do not end in a slash.
            commonJsPath = commonJsPath.replace(/\\/g, "/");
            savePath = savePath.replace(/\\/g, "/");
            if (commonJsPath.charAt(commonJsPath.length - 1) === "/") {
                commonJsPath = commonJsPath.substring(0, commonJsPath.length - 1);
            }
            if (savePath.charAt(savePath.length - 1) === "/") {
                savePath = savePath.substring(0, savePath.length - 1);
            }

            //Cycle through all the JS files and convert them.
            if (!fileList || !fileList.length) {
                if (commonJs.useLog) {
                    if (commonJsPath === "convert") {
                        //A request just to convert one file.
                        console.log('\n\n' + commonJs.convert(savePath, file.readFile(savePath)));
                    } else {
                        console.log("No files to convert in directory: " + commonJsPath);
                    }
                }
            } else {
                for (i = 0; (fileName = fileList[i]); i++) {
                    convertedFileName = fileName.replace(commonJsPath, savePath);

                    //Handle JS files.
                    if (jsFileRegExp.test(fileName)) {
                        fileContents = file.readFile(fileName);
                        fileContents = commonJs.convert(fileName, fileContents);
                        file.saveUtf8File(convertedFileName, fileContents);
                    } else {
                        //Just copy the file over.
                        file.copyFile(fileName, convertedFileName, true);
                    }
                }
            }
        },

        /**
         * Removes the comments from a string.
         *
         * @param {String} fileContents
         * @param {String} fileName mostly used for informative reasons if an error.
         *
         * @returns {String} a string of JS with comments removed.
         */
        removeComments: function (fileContents, fileName) {
            //Uglify's ast generation removes comments, so just convert to ast,
            //then back to source code to get rid of comments.
            return uglify.uglify.gen_code(uglify.parser.parse(fileContents), true);
        },

        /**
         * Regexp for testing if there is already a require.def call in the file,
         * in which case do not try to convert it.
         */
        defRegExp: /define\s*\(\s*("|'|\[|function)/,

        /**
         * Regexp for testing if there is a require([]) or require(function(){})
         * call, indicating the file is already in requirejs syntax.
         */
        rjsRegExp: /require\s*\(\s*(\[|function)/,

        /**
         * Does the actual file conversion.
         *
         * @param {String} fileName the name of the file.
         *
         * @param {String} fileContents the contents of a file :)
         *
         * @param {Boolean} skipDeps if true, require("") dependencies
         * will not be searched, but the contents will just be wrapped in the
         * standard require, exports, module dependencies. Only usable in sync
         * environments like Node where the require("") calls can be resolved on
         * the fly.
         *
         * @returns {String} the converted contents
         */
        convert: function (fileName, fileContents, skipDeps) {
            //Strip out comments.
            try {
                var deps = [], depName, match,
                    //Remove comments
                    tempContents = commonJs.removeComments(fileContents, fileName);

                //First see if the module is not already RequireJS-formatted.
                if (commonJs.defRegExp.test(tempContents) || commonJs.rjsRegExp.test(tempContents)) {
                    return fileContents;
                }

                //Reset the regexp to start at beginning of file. Do this
                //since the regexp is reused across files.
                commonJs.depRegExp.lastIndex = 0;

                if (!skipDeps) {
                    //Find dependencies in the code that was not in comments.
                    while ((match = commonJs.depRegExp.exec(tempContents))) {
                        depName = match[1];
                        if (depName) {
                            deps.push('"' + depName + '"');
                        }
                    }
                }

                //Construct the wrapper boilerplate.
                fileContents = 'define(["require", "exports", "module"' +
                       (deps.length ? ', ' + deps.join(",") : '') + '], ' +
                       'function(require, exports, module) {\n' +
                       fileContents +
                       '\n});\n';
            } catch (e) {
                console.log("COULD NOT CONVERT: " + fileName + ", so skipping it. Error was: " + e);
                return fileContents;
            }

            return fileContents;
        }
    };

    return commonJs;
});
/**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*jslint plusplus: true, nomen: true, regexp: true  */
/*global define, require */


define('build', [ 'lang', 'logger', 'env!env/file', 'parse', 'optimize', 'pragma',
         'transform', 'env!env/load', 'requirePatch', 'env!env/quit'],
function (lang,   logger,   file,          parse,    optimize,   pragma,
          transform,   load,           requirePatch,   quit) {
    'use strict';

    var build, buildBaseConfig,
        endsWithSemiColonRegExp = /;\s*$/;

    buildBaseConfig = {
            appDir: "",
            pragmas: {},
            paths: {},
            optimize: "uglify",
            optimizeCss: "standard.keepLines",
            inlineText: true,
            isBuild: true,
            optimizeAllPluginResources: false,
            findNestedDependencies: false,
            preserveLicenseComments: true,
            //By default, all files/directories are copied, unless
            //they match this regexp, by default just excludes .folders
            dirExclusionRegExp: file.dirExclusionRegExp
        };

    /**
     * Some JS may not be valid if concatenated with other JS, in particular
     * the style of omitting semicolons and rely on ASI. Add a semicolon in
     * those cases.
     */
    function addSemiColon(text) {
        if (endsWithSemiColonRegExp.test(text)) {
            return text;
        } else {
            return text + ";";
        }
    }

    function endsWithSlash(dirName) {
        if (dirName.charAt(dirName.length - 1) !== "/") {
            dirName += "/";
        }
        return dirName;
    }

    //Method used by plugin writeFile calls, defined up here to avoid
    //jslint warning about "making a function in a loop".
    function makeWriteFile(namespace, layer) {
        function writeFile(name, contents) {
            logger.trace('Saving plugin-optimized file: ' + name);
            file.saveUtf8File(name, contents);
        }

        writeFile.asModule = function (moduleName, fileName, contents) {
            writeFile(fileName,
                build.toTransport(namespace, moduleName, fileName, contents, layer));
        };

        return writeFile;
    }

    /**
     * Main API entry point into the build. The args argument can either be
     * an array of arguments (like the onese passed on a command-line),
     * or it can be a JavaScript object that has the format of a build profile
     * file.
     *
     * If it is an object, then in addition to the normal properties allowed in
     * a build profile file, the object should contain one other property:
     *
     * The object could also contain a "buildFile" property, which is a string
     * that is the file path to a build profile that contains the rest
     * of the build profile directives.
     *
     * This function does not return a status, it should throw an error if
     * there is a problem completing the build.
     */
    build = function (args) {
        var stackRegExp = /( {4}at[^\n]+)\n/,
            standardIndent = '  ',
            buildFile, cmdConfig, errorMsg, errorStack, stackMatch, errorTree,
            i, j, errorMod;

        try {
            if (!args || lang.isArray(args)) {
                if (!args || args.length < 1) {
                    logger.error("build.js buildProfile.js\n" +
                          "where buildProfile.js is the name of the build file (see example.build.js for hints on how to make a build file).");
                    return undefined;
                }

                //Next args can include a build file path as well as other build args.
                //build file path comes first. If it does not contain an = then it is
                //a build file path. Otherwise, just all build args.
                if (args[0].indexOf("=") === -1) {
                    buildFile = args[0];
                    args.splice(0, 1);
                }

                //Remaining args are options to the build
                cmdConfig = build.convertArrayToObject(args);
                cmdConfig.buildFile = buildFile;
            } else {
                cmdConfig = args;
            }

            return build._run(cmdConfig);
        } catch (e) {
            errorMsg = e.toString();
            errorTree = e.moduleTree;
            stackMatch = stackRegExp.exec(errorMsg);

            if (stackMatch) {
                errorMsg += errorMsg.substring(0, stackMatch.index + stackMatch[0].length + 1);
            }

            //If a module tree that shows what module triggered the error,
            //print it out.
            if (errorTree && errorTree.length > 0) {
                errorMsg += '\nIn module tree:\n';

                for (i = errorTree.length - 1; i > -1; i--) {
                    errorMod = errorTree[i];
                    if (errorMod) {
                        for (j = errorTree.length - i; j > -1; j--) {
                            errorMsg += standardIndent;
                        }
                        errorMsg += errorMod + '\n';
                    }
                }

                logger.error(errorMsg);
            }

            errorStack = e.stack;

            if (typeof args === 'string' && args.indexOf('stacktrace=true') !== -1) {
                errorMsg += '\n' + errorStack;
            } else {
                if (!stackMatch && errorStack) {
                    //Just trim out the first "at" in the stack.
                    stackMatch = stackRegExp.exec(errorStack);
                    if (stackMatch) {
                        errorMsg += '\n' + stackMatch[0] || '';
                    }
                }
            }

            if (logger.level > logger.ERROR) {
                throw new Error(errorMsg);
            } else {
                logger.error(errorMsg);
                quit(1);
            }
        }
    };

    build._run = function (cmdConfig) {
        var buildFileContents = "",
            pluginCollector = {},
            buildPaths, fileName, fileNames,
            prop, paths, i,
            baseConfig, config,
            modules, builtModule, srcPath, buildContext,
            destPath, moduleName, moduleMap, parentModuleMap, context,
            resources, resource, pluginProcessed = {}, plugin, fileContents;

        //Can now run the patches to require.js to allow it to be used for
        //build generation. Do it here instead of at the top of the module
        //because we want normal require behavior to load the build tool
        //then want to switch to build mode.
        requirePatch();

        config = build.createConfig(cmdConfig);
        paths = config.paths;

        if (config.logLevel) {
            logger.logLevel(config.logLevel);
        }

        if (!config.out && !config.cssIn) {
            //This is not just a one-off file build but a full build profile, with
            //lots of files to process.

            //First copy all the baseUrl content
            file.copyDir((config.appDir || config.baseUrl), config.dir, /\w/, true);

            //Adjust baseUrl if config.appDir is in play, and set up build output paths.
            buildPaths = {};
            if (config.appDir) {
                //All the paths should be inside the appDir, so just adjust
                //the paths to use the dirBaseUrl
                for (prop in paths) {
                    if (paths.hasOwnProperty(prop)) {
                        buildPaths[prop] = paths[prop].replace(config.appDir, config.dir);
                    }
                }
            } else {
                //If no appDir, then make sure to copy the other paths to this directory.
                for (prop in paths) {
                    if (paths.hasOwnProperty(prop)) {
                        //Set up build path for each path prefix, but only do so
                        //if the path falls out of the current baseUrl
                        if (paths[prop].indexOf(config.baseUrl) === 0) {
                            buildPaths[prop] = paths[prop].replace(config.baseUrl, config.dirBaseUrl);
                        } else {
                            buildPaths[prop] = paths[prop] === 'empty:' ? 'empty:' : prop.replace(/\./g, "/");

                            //Make sure source path is fully formed with baseUrl,
                            //if it is a relative URL.
                            srcPath = paths[prop];
                            if (srcPath.indexOf('/') !== 0 && srcPath.indexOf(':') === -1) {
                                srcPath = config.baseUrl + srcPath;
                            }

                            destPath = config.dirBaseUrl + buildPaths[prop];

                            //Skip empty: paths
                            if (srcPath !== 'empty:') {
                                //If the srcPath is a directory, copy the whole directory.
                                if (file.exists(srcPath) && file.isDirectory(srcPath)) {
                                    //Copy files to build area. Copy all files (the /\w/ regexp)
                                    file.copyDir(srcPath, destPath, /\w/, true);
                                } else {
                                    //Try a .js extension
                                    srcPath += '.js';
                                    destPath += '.js';
                                    file.copyFile(srcPath, destPath);
                                }
                            }
                        }
                    }
                }
            }
        }

        //Figure out source file location for each module layer. Do this by seeding require
        //with source area configuration. This is needed so that later the module layers
        //can be manually copied over to the source area, since the build may be
        //require multiple times and the above copyDir call only copies newer files.
        require({
            baseUrl: config.baseUrl,
            paths: paths,
            packagePaths: config.packagePaths,
            packages: config.packages
        });
        buildContext = require.s.contexts._;
        modules = config.modules;

        if (modules) {
            modules.forEach(function (module) {
                if (module.name) {
                    module._sourcePath = buildContext.nameToUrl(module.name);
                    //If the module does not exist, and this is not a "new" module layer,
                    //as indicated by a true "create" property on the module, and
                    //it is not a plugin-loaded resource, then throw an error.
                    if (!file.exists(module._sourcePath) && !module.create &&
                        module.name.indexOf('!') === -1) {
                        throw new Error("ERROR: module path does not exist: " +
                                        module._sourcePath + " for module named: " + module.name +
                                        ". Path is relative to: " + file.absPath('.'));
                    }
                }
            });
        }

        if (config.out) {
            //Just set up the _buildPath for the module layer.
            require(config);
            if (!config.cssIn) {
                config.modules[0]._buildPath = typeof config.out === 'function' ?
                                               'FUNCTION' : config.out;
            }
        } else if (!config.cssIn) {
            //Now set up the config for require to use the build area, and calculate the
            //build file locations. Pass along any config info too.
            baseConfig = {
                baseUrl: config.dirBaseUrl,
                paths: buildPaths
            };

            lang.mixin(baseConfig, config);
            require(baseConfig);

            if (modules) {
                modules.forEach(function (module) {
                    if (module.name) {
                        module._buildPath = buildContext.nameToUrl(module.name, null);
                        if (!module.create) {
                            file.copyFile(module._sourcePath, module._buildPath);
                        }
                    }
                });
            }
        }

        //Run CSS optimizations before doing JS module tracing, to allow
        //things like text loader plugins loading CSS to get the optimized
        //CSS.
        if (config.optimizeCss && config.optimizeCss !== "none" && config.dir) {
            buildFileContents += optimize.css(config.dir, config);
        }

        if (modules) {
            //For each module layer, call require to calculate dependencies.
            modules.forEach(function (module) {
                module.layer = build.traceDependencies(module, config);
            });

            //Now build up shadow layers for anything that should be excluded.
            //Do this after tracing dependencies for each module, in case one
            //of those modules end up being one of the excluded values.
            modules.forEach(function (module) {
                if (module.exclude) {
                    module.excludeLayers = [];
                    module.exclude.forEach(function (exclude, i) {
                        //See if it is already in the list of modules.
                        //If not trace dependencies for it.
                        module.excludeLayers[i] = build.findBuildModule(exclude, modules) ||
                                                 {layer: build.traceDependencies({name: exclude}, config)};
                    });
                }
            });

            modules.forEach(function (module) {
                if (module.exclude) {
                    //module.exclude is an array of module names. For each one,
                    //get the nested dependencies for it via a matching entry
                    //in the module.excludeLayers array.
                    module.exclude.forEach(function (excludeModule, i) {
                        var excludeLayer = module.excludeLayers[i].layer, map = excludeLayer.buildPathMap, prop;
                        for (prop in map) {
                            if (map.hasOwnProperty(prop)) {
                                build.removeModulePath(prop, map[prop], module.layer);
                            }
                        }
                    });
                }
                if (module.excludeShallow) {
                    //module.excludeShallow is an array of module names.
                    //shallow exclusions are just that module itself, and not
                    //its nested dependencies.
                    module.excludeShallow.forEach(function (excludeShallowModule) {
                        var path = module.layer.buildPathMap[excludeShallowModule];
                        if (path) {
                            build.removeModulePath(excludeShallowModule, path, module.layer);
                        }
                    });
                }

                //Flatten them and collect the build output for each module.
                builtModule = build.flattenModule(module, module.layer, config);

                //Save it to a temp file for now, in case there are other layers that
                //contain optimized content that should not be included in later
                //layer optimizations. See issue #56.
                if (module._buildPath === 'FUNCTION') {
                    module._buildText = builtModule.text;
                } else {
                    file.saveUtf8File(module._buildPath + '-temp', builtModule.text);
                }
                buildFileContents += builtModule.buildText;
            });

            //Now move the build layers to their final position.
            modules.forEach(function (module) {
                var finalPath = module._buildPath;
                if (finalPath !== 'FUNCTION') {
                    if (file.exists(finalPath)) {
                        file.deleteFile(finalPath);
                    }
                    file.renameFile(finalPath + '-temp', finalPath);

                    //And finally, if removeCombined is specified, remove
                    //any of the files that were used in this layer.
                    //Be sure not to remove other build layers.
                    if (config.removeCombined) {
                        module.layer.buildFilePaths.forEach(function (path) {
                            if (file.exists(path) && !modules.some(function (mod) {
                                return mod._buildPath === path;
                            })) {
                                file.deleteFile(path);
                            }
                        });
                    }
                }
            });
        }

        //Do other optimizations.
        if (config.out && !config.cssIn) {
            //Just need to worry about one JS file.
            fileName = config.modules[0]._buildPath;
            if (fileName === 'FUNCTION') {
                config.modules[0]._buildText = optimize.js(fileName,
                                                           config.modules[0]._buildText,
                                                           config);
            } else {
                optimize.jsFile(fileName, null, fileName, config);
            }
        } else if (!config.cssIn) {
            //Normal optimizations across modules.

            //JS optimizations.
            fileNames = file.getFilteredFileList(config.dir, /\.js$/, true);
            for (i = 0; i < fileNames.length; i++) {
                fileName = fileNames[i];

                //Generate the module name from the config.dir root.
                moduleName = fileName.replace(config.dir, '');
                //Get rid of the extension
                moduleName = moduleName.substring(0, moduleName.length - 3);

                //Convert the file to transport format, but without a name
                //inserted (by passing null for moduleName) since the files are
                //standalone, one module per file.
                fileContents = file.readFile(fileName);
                fileContents = build.toTransport(config.namespace,
                                                 null,
                                                 fileName,
                                                 fileContents);

                optimize.jsFile(fileName, fileContents, fileName, config, pluginCollector);
            }

            //Normalize all the plugin resources.
            context = require.s.contexts._;

            for (moduleName in pluginCollector) {
                if (pluginCollector.hasOwnProperty(moduleName)) {
                    parentModuleMap = context.makeModuleMap(moduleName);
                    resources = pluginCollector[moduleName];
                    for (i = 0; i < resources.length; i++) {
                        resource = resources[i];
                        moduleMap = context.makeModuleMap(resource, parentModuleMap);
                        if (!context.plugins[moduleMap.prefix]) {
                            //Set the value in context.plugins so it
                            //will be evaluated as a full plugin.
                            context.plugins[moduleMap.prefix] = true;

                            //Do not bother if the plugin is not available.
                            if (!file.exists(require.toUrl(moduleMap.prefix + '.js'))) {
                                continue;
                            }

                            //Rely on the require in the build environment
                            //to be synchronous
                            context.require([moduleMap.prefix]);

                            //Now that the plugin is loaded, redo the moduleMap
                            //since the plugin will need to normalize part of the path.
                            moduleMap = context.makeModuleMap(resource, parentModuleMap);
                        }

                        //Only bother with plugin resources that can be handled
                        //processed by the plugin, via support of the writeFile
                        //method.
                        if (!pluginProcessed[moduleMap.fullName]) {
                            //Only do the work if the plugin was really loaded.
                            //Using an internal access because the file may
                            //not really be loaded.
                            plugin = context.defined[moduleMap.prefix];
                            if (plugin && plugin.writeFile) {
                                plugin.writeFile(
                                    moduleMap.prefix,
                                    moduleMap.name,
                                    require,
                                    makeWriteFile(
                                        config.namespace
                                    ),
                                    context.config
                                );
                            }

                            pluginProcessed[moduleMap.fullName] = true;
                        }
                    }

                }
            }

            //console.log('PLUGIN COLLECTOR: ' + JSON.stringify(pluginCollector, null, "  "));


            //All module layers are done, write out the build.txt file.
            file.saveUtf8File(config.dir + "build.txt", buildFileContents);
        }

        //If just have one CSS file to optimize, do that here.
        if (config.cssIn) {
            buildFileContents += optimize.cssFile(config.cssIn, config.out, config);
        }

        if (typeof config.out === 'function') {
            config.out(config.modules[0]._buildText);
        }

        //Print out what was built into which layers.
        if (buildFileContents) {
            logger.info(buildFileContents);
            return buildFileContents;
        }

        return '';
    };

    /**
     * Converts command line args like "paths.foo=../some/path"
     * result.paths = { foo: '../some/path' } where prop = paths,
     * name = paths.foo and value = ../some/path, so it assumes the
     * name=value splitting has already happened.
     */
    function stringDotToObj(result, name, value) {
        var parts = name.split('.'),
            prop = parts[0];

        parts.forEach(function (prop, i) {
            if (i === parts.length - 1) {
                result[prop] = value;
            } else {
                if (!result[prop]) {
                    result[prop] = {};
                }
                result = result[prop];
            }

        });
    }

    //Used by convertArrayToObject to convert some things from prop.name=value
    //to a prop: { name: value}
    build.dotProps = [
        'paths.',
        'wrap.',
        'pragmas.',
        'pragmasOnSave.',
        'has.',
        'hasOnSave.',
        'wrap.',
        'uglify.',
        'closure.'
    ];

    build.hasDotPropMatch = function (prop) {
        return build.dotProps.some(function (dotProp) {
            return prop.indexOf(dotProp) === 0;
        });
    };

    /**
     * Converts an array that has String members of "name=value"
     * into an object, where the properties on the object are the names in the array.
     * Also converts the strings "true" and "false" to booleans for the values.
     * member name/value pairs, and converts some comma-separated lists into
     * arrays.
     * @param {Array} ary
     */
    build.convertArrayToObject = function (ary) {
        var result = {}, i, separatorIndex, prop, value,
            needArray = {
                "include": true,
                "exclude": true,
                "excludeShallow": true,
                "insertRequire": true
            };

        for (i = 0; i < ary.length; i++) {
            separatorIndex = ary[i].indexOf("=");
            if (separatorIndex === -1) {
                throw "Malformed name/value pair: [" + ary[i] + "]. Format should be name=value";
            }

            value = ary[i].substring(separatorIndex + 1, ary[i].length);
            if (value === "true") {
                value = true;
            } else if (value === "false") {
                value = false;
            }

            prop = ary[i].substring(0, separatorIndex);

            //Convert to array if necessary
            if (needArray[prop]) {
                value = value.split(",");
            }

            if (build.hasDotPropMatch(prop)) {
                stringDotToObj(result, prop, value);
            } else {
                result[prop] = value;
            }
        }
        return result; //Object
    };

    build.makeAbsPath = function (path, absFilePath) {
        //Add abspath if necessary. If path starts with a slash or has a colon,
        //then already is an abolute path.
        if (path.indexOf('/') !== 0 && path.indexOf(':') === -1) {
            path = absFilePath +
                   (absFilePath.charAt(absFilePath.length - 1) === '/' ? '' : '/') +
                   path;
            path = file.normalize(path);
        }
        return path.replace(lang.backSlashRegExp, '/');
    };

    build.makeAbsObject = function (props, obj, absFilePath) {
        var i, prop;
        if (obj) {
            for (i = 0; i < props.length; i++) {
                prop = props[i];
                if (obj.hasOwnProperty(prop) && typeof obj[prop] === 'string') {
                    obj[prop] = build.makeAbsPath(obj[prop], absFilePath);
                }
            }
        }
    };

    /**
     * For any path in a possible config, make it absolute relative
     * to the absFilePath passed in.
     */
    build.makeAbsConfig = function (config, absFilePath) {
        var props, prop, i;

        props = ["appDir", "dir", "baseUrl"];
        for (i = 0; i < props.length; i++) {
            prop = props[i];

            if (config[prop]) {
                //Add abspath if necessary, make sure these paths end in
                //slashes
                if (prop === "baseUrl") {
                    config.originalBaseUrl = config.baseUrl;
                    if (config.appDir) {
                        //If baseUrl with an appDir, the baseUrl is relative to
                        //the appDir, *not* the absFilePath. appDir and dir are
                        //made absolute before baseUrl, so this will work.
                        config.baseUrl = build.makeAbsPath(config.originalBaseUrl, config.appDir);
                    } else {
                        //The dir output baseUrl is same as regular baseUrl, both
                        //relative to the absFilePath.
                        config.baseUrl = build.makeAbsPath(config[prop], absFilePath);
                    }
                } else {
                    config[prop] = build.makeAbsPath(config[prop], absFilePath);
                }

                config[prop] = endsWithSlash(config[prop]);
            }
        }

        //Do not allow URLs for paths resources.
        if (config.paths) {
            for (prop in config.paths) {
                if (config.paths.hasOwnProperty(prop)) {
                    config.paths[prop] = build.makeAbsPath(config.paths[prop],
                                              (config.baseUrl || absFilePath));
                }
            }
        }

        build.makeAbsObject(["out", "cssIn"], config, absFilePath);
        build.makeAbsObject(["startFile", "endFile"], config.wrap, absFilePath);
    };

    build.nestedMix = {
        paths: true,
        has: true,
        hasOnSave: true,
        pragmas: true,
        pragmasOnSave: true
    };

    /**
     * Mixes additional source config into target config, and merges some
     * nested config, like paths, correctly.
     */
    function mixConfig(target, source) {
        var prop, value;

        for (prop in source) {
            if (source.hasOwnProperty(prop)) {
                //If the value of the property is a plain object, then
                //allow a one-level-deep mixing of it.
                value = source[prop];
                if (typeof value === 'object' && value &&
                    !lang.isArray(value) && !lang.isFunction(value) &&
                    !lang.isRegExp(value)) {
                    target[prop] = lang.mixin({}, target[prop], value, true);
                } else {
                    target[prop] = value;
                }
            }
        }
    }

    /**
     * Creates a config object for an optimization build.
     * It will also read the build profile if it is available, to create
     * the configuration.
     *
     * @param {Object} cfg config options that take priority
     * over defaults and ones in the build file. These options could
     * be from a command line, for instance.
     *
     * @param {Object} the created config object.
     */
    build.createConfig = function (cfg) {
        /*jslint evil: true */
        var config = {}, buildFileContents, buildFileConfig, mainConfig,
            mainConfigFile, mainConfigPath, prop, buildFile, absFilePath;

        //Make sure all paths are relative to current directory.
        absFilePath = file.absPath('.');
        build.makeAbsConfig(cfg, absFilePath);
        build.makeAbsConfig(buildBaseConfig, absFilePath);

        lang.mixin(config, buildBaseConfig);
        lang.mixin(config, cfg, true);

        if (config.buildFile) {
            //A build file exists, load it to get more config.
            buildFile = file.absPath(config.buildFile);

            //Find the build file, and make sure it exists, if this is a build
            //that has a build profile, and not just command line args with an in=path
            if (!file.exists(buildFile)) {
                throw new Error("ERROR: build file does not exist: " + buildFile);
            }

            absFilePath = config.baseUrl = file.absPath(file.parent(buildFile));

            //Load build file options.
            buildFileContents = file.readFile(buildFile);
            try {
                buildFileConfig = eval("(" + buildFileContents + ")");
                build.makeAbsConfig(buildFileConfig, absFilePath);

                if (!buildFileConfig.out && !buildFileConfig.dir) {
                    buildFileConfig.dir = (buildFileConfig.baseUrl || config.baseUrl) + "/build/";
                }

                //Mix in the config now so that items in mainConfigFile can
                //be resolved relative to them if necessary, like if appDir
                //is set here, but the baseUrl is in mainConfigFile. Will
                //re-mix in the same build config later after mainConfigFile
                //is processed, since build config should take priority.
                mixConfig(config, buildFileConfig);
            } catch (e) {
                throw new Error("Build file " + buildFile + " is malformed: " + e);
            }
        }

        mainConfigFile = config.mainConfigFile || (buildFileConfig && buildFileConfig.mainConfigFile);
        if (mainConfigFile) {
            mainConfigFile = build.makeAbsPath(mainConfigFile, absFilePath);
            if (!file.exists(mainConfigFile)) {
                throw new Error(mainConfigFile + ' does not exist.');
            }
            try {
                mainConfig = parse.findConfig(mainConfigFile, file.readFile(mainConfigFile));
            } catch (configError) {
                throw new Error('The config in mainConfigFile ' +
                        mainConfigFile +
                        ' cannot be used because it cannot be evaluated' +
                        ' correctly while running in the optimizer. Try only' +
                        ' using a config that is also valid JSON, or do not use' +
                        ' mainConfigFile and instead copy the config values needed' +
                        ' into a build file or command line arguments given to the optimizer.');
            }
            if (mainConfig) {
                mainConfigPath = mainConfigFile.substring(0, mainConfigFile.lastIndexOf('/'));

                //Add in some existing config, like appDir, since they can be
                //used inside the mainConfigFile -- paths and baseUrl are
                //relative to them.
                if (config.appDir && !mainConfig.appDir) {
                    mainConfig.appDir = config.appDir;
                }

                //If no baseUrl, then use the directory holding the main config.
                if (!mainConfig.baseUrl) {
                    mainConfig.baseUrl = mainConfigPath;
                }

                build.makeAbsConfig(mainConfig, mainConfigPath);
                mixConfig(config, mainConfig);
            }
        }

        //Mix in build file config, but only after mainConfig has been mixed in.
        if (buildFileConfig) {
            mixConfig(config, buildFileConfig);
        }

        //Re-apply the override config values. Command line
        //args should take precedence over build file values.
        mixConfig(config, cfg);

        //Set final output dir
        if (config.hasOwnProperty("baseUrl")) {
            if (config.appDir) {
                config.dirBaseUrl = build.makeAbsPath(config.originalBaseUrl, config.dir);
            } else {
                config.dirBaseUrl = config.dir || config.baseUrl;
            }
            //Make sure dirBaseUrl ends in a slash, since it is
            //concatenated with other strings.
            config.dirBaseUrl = endsWithSlash(config.dirBaseUrl);
        }

        //Check for errors in config
        if (config.cssIn && !config.out) {
            throw new Error("ERROR: 'out' option missing.");
        }
        if (!config.cssIn && !config.baseUrl) {
            //Just use the current directory as the baseUrl
            config.baseUrl = './';
        }
        if (!config.out && !config.dir) {
            throw new Error('Missing either an "out" or "dir" config value. ' +
                            'If using "appDir" for a full project optimization, ' +
                            'use "dir". If you want to optimize to one file, ' +
                            'use "out".');
        }
        if (config.appDir && config.out) {
            throw new Error('"appDir" is not compatible with "out". Use "dir" ' +
                            'instead. appDir is used to copy whole projects, ' +
                            'where "out" is used to just optimize to one file.');
        }
        if (config.out && config.dir) {
            throw new Error('The "out" and "dir" options are incompatible.' +
                            ' Use "out" if you are targeting a single file for' +
                            ' for optimization, and "dir" if you want the appDir' +
                            ' or baseUrl directories optimized.');
        }

        if (config.insertRequire && !lang.isArray(config.insertRequire)) {
            throw new Error('insertRequire should be a list of module IDs' +
                            ' to insert in to a require([]) call.');
        }

        if ((config.name || config.include) && !config.modules) {
            //Just need to build one file, but may be part of a whole appDir/
            //baseUrl copy, but specified on the command line, so cannot do
            //the modules array setup. So create a modules section in that
            //case.
            config.modules = [
                {
                    name: config.name,
                    out: config.out,
                    include: config.include,
                    exclude: config.exclude,
                    excludeShallow: config.excludeShallow,
                    insertRequire: config.insertRequire
                }
            ];
        } else if (config.modules && config.out) {
            throw new Error('If the "modules" option is used, then there ' +
                            'should be a "dir" option set and "out" should ' +
                            'not be used since "out" is only for single file ' +
                            'optimization output.');
        } else if (config.modules && config.name) {
            throw new Error('"name" and "modules" options are incompatible. ' +
                            'Either use "name" if doing a single file ' +
                            'optimization, or "modules" if you want to target ' +
                            'more than one file for optimization.');
        }

        if (config.out && !config.cssIn) {
            //Just one file to optimize.

            //Does not have a build file, so set up some defaults.
            //Optimizing CSS should not be allowed, unless explicitly
            //asked for on command line. In that case the only task is
            //to optimize a CSS file.
            if (!cfg.optimizeCss) {
                config.optimizeCss = "none";
            }
        }

        //Create a hash lookup for the stubModules config to make lookup
        //cheaper later.
        if (config.stubModules) {
            config.stubModules._byName = {};
            config.stubModules.forEach(function (id) {
                config.stubModules._byName[id] = true;
            });
        }

        //Get any wrap text.
        try {
            if (config.wrap) {
                if (config.wrap === true) {
                    //Use default values.
                    config.wrap = {
                        start: '(function () {',
                        end: '}());'
                    };
                } else {
                    config.wrap.start = config.wrap.start ||
                            file.readFile(build.makeAbsPath(config.wrap.startFile, absFilePath));
                    config.wrap.end = config.wrap.end ||
                            file.readFile(build.makeAbsPath(config.wrap.endFile, absFilePath));
                }
            }
        } catch (wrapError) {
            throw new Error('Malformed wrap config: need both start/end or ' +
                            'startFile/endFile: ' + wrapError.toString());
        }

        //Do final input verification
        if (config.context) {
            throw new Error('The build argument "context" is not supported' +
                            ' in a build. It should only be used in web' +
                            ' pages.');
        }

        //Set file.fileExclusionRegExp if desired
        if (config.hasOwnProperty('fileExclusionRegExp')) {
            if (typeof config.fileExclusionRegExp === "string") {
                file.exclusionRegExp = new RegExp(config.fileExclusionRegExp);
            } else {
                file.exclusionRegExp = config.fileExclusionRegExp;
            }
        } else if (config.hasOwnProperty('dirExclusionRegExp')) {
            //Set file.dirExclusionRegExp if desired, this is the old
            //name for fileExclusionRegExp before 1.0.2. Support for backwards
            //compatibility
            file.exclusionRegExp = config.dirExclusionRegExp;
        }

        //Remove things that may cause problems in the build.
        delete config.jQuery;

        return config;
    };

    /**
     * finds the module being built/optimized with the given moduleName,
     * or returns null.
     * @param {String} moduleName
     * @param {Array} modules
     * @returns {Object} the module object from the build profile, or null.
     */
    build.findBuildModule = function (moduleName, modules) {
        var i, module;
        for (i = 0; i < modules.length; i++) {
            module = modules[i];
            if (module.name === moduleName) {
                return module;
            }
        }
        return null;
    };

    /**
     * Removes a module name and path from a layer, if it is supposed to be
     * excluded from the layer.
     * @param {String} moduleName the name of the module
     * @param {String} path the file path for the module
     * @param {Object} layer the layer to remove the module/path from
     */
    build.removeModulePath = function (module, path, layer) {
        var index = layer.buildFilePaths.indexOf(path);
        if (index !== -1) {
            layer.buildFilePaths.splice(index, 1);
        }
    };

    /**
     * Uses the module build config object to trace the dependencies for the
     * given module.
     *
     * @param {Object} module the module object from the build config info.
     * @param {Object} the build config object.
     *
     * @returns {Object} layer information about what paths and modules should
     * be in the flattened module.
     */
    build.traceDependencies = function (module, config) {
        var include, override, layer, context, baseConfig, oldContext,
            registry, id, idParts, pluginId,
            errMessage = '',
            failedPluginMap = {},
            failedPluginIds = [],
            errIds = [];

        //Reset some state set up in requirePatch.js, and clean up require's
        //current context.
        oldContext = require._buildReset();

        //Grab the reset layer and context after the reset, but keep the
        //old config to reuse in the new context.
        baseConfig = oldContext.config;
        layer = require._layer;
        context = layer.context;

        //Put back basic config, use a fresh object for it.
        //WARNING: probably not robust for paths and packages/packagePaths,
        //since those property's objects can be modified. But for basic
        //config clone it works out.
        require(lang.mixin({}, baseConfig, true));

        logger.trace("\nTracing dependencies for: " + (module.name || module.out));
        include = module.name && !module.create ? [module.name] : [];
        if (module.include) {
            include = include.concat(module.include);
        }

        //If there are overrides to basic config, set that up now.;
        if (module.override) {
            override = lang.mixin({}, baseConfig, true);
            lang.mixin(override, module.override, true);
            require(override);
        }

        //Figure out module layer dependencies by calling require to do the work.
        require(include);

        //Reset config
        if (module.override) {
            require(baseConfig);
        }

        //Check to see if it all loaded. If not, then stop, and give
        //a message on what is left.
        registry = context.registry;
        for (id in registry) {
            if (registry.hasOwnProperty(id) && id.indexOf('_@r') !== 0) {
                if (id.indexOf('_unnormalized') === -1) {
                    errIds.push(id);
                }

                //Look for plugins that did not call load()
                idParts = id.split('!');
                pluginId = idParts[0];
                if (idParts.length > 1 && !failedPluginMap.hasOwnProperty(pluginId)) {
                    failedPluginIds.push(pluginId);
                    failedPluginMap[pluginId] = true;
                }
            }
        }

        if (errIds.length || failedPluginIds.length) {
            if (failedPluginIds.length) {
                errMessage += 'Loader plugin' +
                (failedPluginIds.length === 1 ? '' : 's') +
                ' did not call ' +
                'the load callback in the build: ' +
                failedPluginIds.join(', ') + '\n';
            }
            errMessage += 'Module loading did not complete for: ' + errIds.join(', ');
            throw new Error(errMessage);
        }

        return layer;
    };

    /**
     * Uses the module build config object to create an flattened version
     * of the module, with deep dependencies included.
     *
     * @param {Object} module the module object from the build config info.
     *
     * @param {Object} layer the layer object returned from build.traceDependencies.
     *
     * @param {Object} the build config object.
     *
     * @returns {Object} with two properties: "text", the text of the flattened
     * module, and "buildText", a string of text representing which files were
     * included in the flattened module text.
     */
    build.flattenModule = function (module, layer, config) {
        var buildFileContents = "",
            namespace = config.namespace || '',
            namespaceWithDot = namespace ? namespace + '.' : '',
            stubModulesByName = (config.stubModules && config.stubModules._byName) || {},
            context = layer.context,
            path, reqIndex, fileContents, currContents,
            i, moduleName, shim, packageConfig,
            parts, builder, writeApi;

        //Use override settings, particularly for pragmas
        if (module.override) {
            config = lang.mixin({}, config, true);
            lang.mixin(config, module.override, true);
        }

        //Start build output for the module.
        buildFileContents += "\n" +
                             (config.dir ? module._buildPath.replace(config.dir, "") : module._buildPath) +
                             "\n----------------\n";

        //If there was an existing file with require in it, hoist to the top.
        if (layer.existingRequireUrl) {
            reqIndex = layer.buildFilePaths.indexOf(layer.existingRequireUrl);
            if (reqIndex !== -1) {
                layer.buildFilePaths.splice(reqIndex, 1);
                layer.buildFilePaths.unshift(layer.existingRequireUrl);
            }
        }

        //Write the built module to disk, and build up the build output.
        fileContents = "";
        for (i = 0; i < layer.buildFilePaths.length; i++) {
            path = layer.buildFilePaths[i];
            moduleName = layer.buildFileToModule[path];

            //If the moduleName is for a package main, then update it to the
            //real main value.
            packageConfig = layer.context.config.pkgs &&
                            layer.context.config.pkgs[moduleName];
            if (packageConfig) {
                moduleName += '/' + packageConfig.main;
            }

            //Figure out if the module is a result of a build plugin, and if so,
            //then delegate to that plugin.
            parts = context.makeModuleMap(moduleName);
            builder = parts.prefix && context.defined[parts.prefix];
            if (builder) {
                if (builder.write) {
                    writeApi = function (input) {
                        fileContents += "\n" + addSemiColon(input);
                        if (config.onBuildWrite) {
                            fileContents = config.onBuildWrite(moduleName, path, fileContents);
                        }
                    };
                    writeApi.asModule = function (moduleName, input) {
                        fileContents += "\n" +
                                        addSemiColon(
                                            build.toTransport(namespace, moduleName, path, input, layer));
                        if (config.onBuildWrite) {
                            fileContents = config.onBuildWrite(moduleName, path, fileContents);
                        }
                    };
                    builder.write(parts.prefix, parts.name, writeApi);
                }
            } else {
                if (stubModulesByName.hasOwnProperty(moduleName)) {
                    //Just want to insert a simple module definition instead
                    //of the source module. Useful for plugins that inline
                    //all their resources.
                    if (layer.context.plugins.hasOwnProperty(moduleName)) {
                        //Slightly different content for plugins, to indicate
                        //that dynamic loading will not work.
                        currContents = 'define({load: function(id){throw new Error("Dynamic load not allowed: " + id);}});';
                    } else {
                        currContents = 'define({});';
                    }
                } else {
                    currContents = file.readFile(path);
                }

                if (config.onBuildRead) {
                    currContents = config.onBuildRead(moduleName, path, currContents);
                }

                if (namespace) {
                    currContents = pragma.namespace(currContents, namespace);
                }

                currContents = build.toTransport(namespace, moduleName, path, currContents, layer);

                if (packageConfig) {
                    currContents = addSemiColon(currContents) + '\n';
                    currContents += namespaceWithDot + "define('" +
                                    packageConfig.name + "', ['" + moduleName +
                                    "'], function (main) { return main; });\n";
                }

                if (config.onBuildWrite) {
                    currContents = config.onBuildWrite(moduleName, path, currContents);
                }

                //Semicolon is for files that are not well formed when
                //concatenated with other content.
                fileContents += "\n" + addSemiColon(currContents);
            }

            buildFileContents += path.replace(config.dir, "") + "\n";
            //Some files may not have declared a require module, and if so,
            //put in a placeholder call so the require does not try to load them
            //after the module is processed.
            //If we have a name, but no defined module, then add in the placeholder.
            if (moduleName && !layer.modulesWithNames[moduleName] && !config.skipModuleInsertion) {
                shim = config.shim && config.shim[moduleName];
                if (shim) {
                    fileContents += '\n' + namespaceWithDot + 'define("' + moduleName + '", ' +
                                     (shim.deps && shim.deps.length ?
                                            build.makeJsArrayString(shim.deps) + ', ' : '') +
                                     (shim.exports ? shim.exports() : 'function(){}') +
                                     ');\n';
                } else {
                    fileContents += '\n' + namespaceWithDot + 'define("' + moduleName + '", function(){});\n';
                }
            }
        }

        //Add a require at the end to kick start module execution, if that
        //was desired. Usually this is only specified when using small shim
        //loaders like almond.
        if (module.insertRequire) {
            fileContents += '\n' + namespaceWithDot + 'require(["' + module.insertRequire.join('", "') + '"]);\n';
        }

        return {
            text: config.wrap ?
                    config.wrap.start + fileContents + config.wrap.end :
                    fileContents,
            buildText: buildFileContents
        };
    };

    //Converts an JS array of strings to a string representation.
    //Not using JSON.stringify() for Rhino's sake.
    build.makeJsArrayString = function (ary) {
        return '["' + ary.map(function (item) {
            //Escape any double quotes, backslashes
            return lang.jsEscape(item);
        }).join('","') + '"]';
    };

    build.toTransport = function (namespace, moduleName, path, contents, layer) {
        function onFound(info) {
            //Only mark this module as having a name if not a named module,
            //or if a named module and the name matches expectations.
            if (layer && (info.needsId || info.foundId === moduleName)) {
                layer.modulesWithNames[moduleName] = true;
            }
        }

        return transform.toTransport(namespace, moduleName, path, contents, onFound);
    };

    return build;
});

    }


    /**
     * Sets the default baseUrl for requirejs to be directory of top level
     * script.
     */
    function setBaseUrl(fileName) {
        //Use the file name's directory as the baseUrl if available.
        dir = fileName.replace(/\\/g, '/');
        if (dir.indexOf('/') !== -1) {
            dir = dir.split('/');
            dir.pop();
            dir = dir.join('/');
            exec("require({baseUrl: '" + dir + "'});");
        }
    }

    //If in Node, and included via a require('requirejs'), just export and
    //THROW IT ON THE GROUND!
    if (env === 'node' && reqMain !== module) {
        setBaseUrl(path.resolve(reqMain ? reqMain.filename : '.'));

        //Create a method that will run the optimzer given an object
        //config.
        requirejs.optimize = function (config, callback) {
            if (!loadedOptimizedLib) {
                loadLib();
                loadedOptimizedLib = true;
            }

            //Create the function that will be called once build modules
            //have been loaded.
            var runBuild = function (build, logger) {
                //Make sure config has a log level, and if not,
                //make it "silent" by default.
                config.logLevel = config.hasOwnProperty('logLevel') ?
                                  config.logLevel : logger.SILENT;

                var result = build(config);

                //Reset build internals on each run.
                requirejs._buildReset();

                if (callback) {
                    callback(result);
                }
            };

            requirejs({
                context: 'build'
            }, ['build', 'logger'], runBuild);
        };

        requirejs.tools = {
            useLib: function (contextName, callback) {
                if (!callback) {
                    callback = contextName;
                    contextName = 'uselib';
                }

                if (!useLibLoaded[contextName]) {
                    loadLib();
                    useLibLoaded[contextName] = true;
                }

                var req = requirejs({
                    context: contextName
                });

                req(['build'], function () {
                    callback(req);
                });
            }
        };

        requirejs.define = define;

        module.exports = requirejs;
        return;
    }

    if (commandOption === 'o') {
        //Do the optimizer work.
        loadLib();

        /**
 * @license Copyright (c) 2010-2011, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/requirejs for details
 */

/*
 * Create a build.js file that has the build options you want and pass that
 * build file to this file to do the build. See example.build.js for more information.
 */

/*jslint strict: false, nomen: false */
/*global require: false */

require({
    baseUrl: require.s.contexts._.config.baseUrl,
    //Use a separate context than the default context so that the
    //build can use the default context.
    context: 'build',
    catchError: {
        define: true
    }
},       ['env!env/args', 'build'],
function (args,            build) {
    build(args);
});


    } else if (commandOption === 'v') {
        console.log('r.js: ' + version + ', RequireJS: ' + this.requirejsVars.require.version);
    } else if (commandOption === 'convert') {
        loadLib();

        this.requirejsVars.require(['env!env/args', 'commonJs', 'env!env/print'],
        function (args,           commonJs,   print) {

            var srcDir, outDir;
            srcDir = args[0];
            outDir = args[1];

            if (!srcDir || !outDir) {
                print('Usage: path/to/commonjs/modules output/dir');
                return;
            }

            commonJs.convertDir(args[0], args[1]);
        });
    } else {
        //Just run an app

        //Load the bundled libraries for use in the app.
        if (commandOption === 'lib') {
            loadLib();
        }

        setBaseUrl(fileName);

        if (exists(fileName)) {
            exec(readFile(fileName), fileName);
        } else {
            showHelp();
        }
    }

}((typeof console !== 'undefined' ? console : undefined),
  (typeof Packages !== 'undefined' ? Array.prototype.slice.call(arguments, 0) : []),
  (typeof readFile !== 'undefined' ? readFile : undefined)));