r.js

/**
 * @license r.js 1.0.8 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 */
/*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,
    version = '1.0.8',
    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');
    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 path.existsSync(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 1.0.8 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 strict: false, plusplus: false, sub: true */
  /*global window, navigator, document, importScripts, jQuery, setTimeout, opera */


  (function (undefined) {
    //Change this version number for each release.
    var version = "1.0.8",
      commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg,
      cjsRequireRegExp = /require\(\s*["']([^'"\s]+)["']\s*\)/g,
      currDirRegExp = /^\.\//,
      jsSuffixRegExp = /\.js$/,
      ostring = Object.prototype.toString,
      ap = Array.prototype,
      aps = ap.slice,
      apsp = ap.splice,
      isBrowser = !!(typeof window !== "undefined" && navigator && document),
      isWebWorker = !isBrowser && typeof importScripts !== "undefined",
    //PS3 indicates loaded and complete, but need to wait for complete
    //specifically. Sequence is "loading", "loaded", execution,
    // then "complete". The UA check is unfortunate, but not sure how
    //to feature test w/o causing perf issues.
      readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ?
                    /^complete$/ : /^(complete|loaded)$/,
      defContextName = "_",
    //Oh the tragedy, detecting opera. See the usage of isOpera for reason.
      isOpera = typeof opera !== "undefined" && opera.toString() === "[object Opera]",
      empty = {},
      contexts = {},
      globalDefQueue = [],
      interactiveScript = null,
      checkLoadedDepth = 0,
      useInteractive = false,
      reservedDependencies = {
        require: true,
        module: true,
        exports: true
      },
      req, cfg = {}, currentlyAddingScript, s, head, baseElement, scripts, script,
      src, subPath, mainScript, dataMain, globalI, ctx, jQueryCheck, checkLoadedTimeoutId;

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

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

    /**
     * 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) {
      for (var prop in source) {
        if (!(prop in empty) && (!(prop in target) || force)) {
          target[prop] = source[prop];
        }
      }
      return req;
    }

    /**
     * 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) {
      var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id);
      if (err) {
        e.originalError = err;
      }
      return e;
    }

    /**
     * Used to set up package paths from a packagePaths or packages config object.
     * @param {Object} pkgs the object to store the new package config
     * @param {Array} currentPackages an array of packages to configure
     * @param {String} [dir] a prefix dir to use.
     */
    function configurePackageDir(pkgs, currentPackages, dir) {
      var i, location, pkgObj;

      for (i = 0; (pkgObj = currentPackages[i]); i++) {
        pkgObj = typeof pkgObj === "string" ? { name: pkgObj } : pkgObj;
        location = pkgObj.location;

        //Add dir to the path, but avoid paths that start with a slash
        //or have a colon (indicates a protocol)
        if (dir && (!location || (location.indexOf("/") !== 0 && location.indexOf(":") === -1))) {
          location = dir + "/" + (location || pkgObj.name);
        }

        //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, '')
        };
      }
    }

    /**
     * jQuery 1.4.3-1.5.x use a readyWait/ready() pairing to hold DOM
     * ready callbacks, but jQuery 1.6 supports a holdReady() API instead.
     * At some point remove the readyWait/ready() support and just stick
     * with using holdReady.
     */
    function jQueryHoldReady($, shouldHold) {
      if ($.holdReady) {
        $.holdReady(shouldHold);
      } else if (shouldHold) {
        $.readyWait += 1;
      } else {
        $.ready(true);
      }
    }

    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;
      } else {
        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;
    }

    /**
     * Creates a new context for use in require and define calls.
     * Handle most of the heavy lifting. Do not want to use an object
     * with prototype here to avoid using "this" in require, in case it
     * needs to be used in more super secure envs that do not want this.
     * Also there should not be that many contexts in the page. Usually just
     * one for the default context, but could be extra for multiversion cases
     * or if a package needs a special context for a dependency that conflicts
     * with the standard context.
     */
    function newContext(contextName) {
      var context, resume,
        config = {
          waitSeconds: 7,
          baseUrl: "./",
          paths: {},
          pkgs: {},
          catchError: {}
        },
        defQueue = [],
        specified = {
          "require": true,
          "exports": true,
          "module": true
        },
        urlMap = {},
        defined = {},
        loaded = {},
        waiting = {},
        waitAry = [],
        urlFetched = {},
        managerCounter = 0,
        managerCallbacks = {},
        plugins = {},
      //Used to indicate which modules in a build scenario
      //need to be full executed.
        needFullExec = {},
        fullExec = {},
        resumeDepth = 0;

      /**
       * 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; (part = ary[i]); 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.
       * @returns {String} normalized name
       */
      function normalize(name, baseName) {
        var pkgName, pkgConfig;

        //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.
              baseName = [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.
              baseName = baseName.split("/");
              baseName = baseName.slice(0, baseName.length - 1);
            }

            name = baseName.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);
          }
        }
        return name;
      }

      /**
       * 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.
       *
       * @returns {Object}
       */
      function makeModuleMap(name, parentModuleMap) {
        var index = name ? name.indexOf("!") : -1,
          prefix = null,
          parentName = parentModuleMap ? parentModuleMap.name : null,
          originalName = name,
          normalizedName, url, pluginModule;

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

        if (prefix) {
          prefix = normalize(prefix, parentName);
        }

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

            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;
            }
          }
        }

        return {
          prefix: prefix,
          name: normalizedName,
          parentMap: parentModuleMap,
          url: url,
          originalName: originalName,
          fullName: prefix ? prefix + "!" + (normalizedName || '') : normalizedName
        };
      }

      /**
       * Determine if priority loading is done. If so clear the priorityWait
       */
      function isPriorityDone() {
        var priorityDone = true,
          priorityWait = config.priorityWait,
          priorityName, i;
        if (priorityWait) {
          for (i = 0; (priorityName = priorityWait[i]); i++) {
            if (!loaded[priorityName]) {
              priorityDone = false;
              break;
            }
          }
          if (priorityDone) {
            delete config.priorityWait;
          }
        }
        return priorityDone;
      }

      function makeContextModuleFunc(func, relModuleMap, 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(relModuleMap);
          return func.apply(null, args);
        };
      }

      /**
       * 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(relModuleMap, enableBuildCallback, altRequire) {
        var modRequire = makeContextModuleFunc(altRequire || context.require, relModuleMap, enableBuildCallback);

        mixin(modRequire, {
          nameToUrl: makeContextModuleFunc(context.nameToUrl, relModuleMap),
          toUrl: makeContextModuleFunc(context.toUrl, relModuleMap),
          defined: makeContextModuleFunc(context.requireDefined, relModuleMap),
          specified: makeContextModuleFunc(context.requireSpecified, relModuleMap),
          isBrowser: req.isBrowser
        });
        return modRequire;
      }

      /*
       * Queues a dependency for checking after the loader is out of a
       * "paused" state, for example while a script file is being loaded
       * in the browser, where it may have many modules defined in it.
       */
      function queueDependency(manager) {
        context.paused.push(manager);
      }

      function execManager(manager) {
        var i, ret, err, errFile, errModuleTree,
          cb = manager.callback,
          map = manager.map,
          fullName = map.fullName,
          args = manager.deps,
          listeners = manager.listeners,
          execCb = config.requireExecCb || req.execCb,
          cjsModule;

        //Call the callback to define the module, if necessary.
        if (cb && isFunction(cb)) {
          if (config.catchError.define) {
            try {
              ret = execCb(fullName, manager.callback, args, defined[fullName]);
            } catch (e) {
              err = e;
            }
          } else {
            ret = execCb(fullName, manager.callback, args, defined[fullName]);
          }

          if (fullName) {
            //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 = manager.cjsModule;
            if (cjsModule &&
              cjsModule.exports !== undefined &&
              //Make sure it is not already the exports value
              cjsModule.exports !== defined[fullName]) {
              ret = defined[fullName] = manager.cjsModule.exports;
            } else if (ret === undefined && manager.usingExports) {
              //exports already set the defined value.
              ret = defined[fullName];
            } else {
              //Use the return value from the function.
              defined[fullName] = ret;
              //If this module needed full execution in a build
              //environment, mark that now.
              if (needFullExec[fullName]) {
                fullExec[fullName] = true;
              }
            }
          }
        } else if (fullName) {
          //May just be an object definition for the module. Only
          //worry about defining if have a module name.
          ret = defined[fullName] = cb;

          //If this module needed full execution in a build
          //environment, mark that now.
          if (needFullExec[fullName]) {
            fullExec[fullName] = true;
          }
        }

        //Clean up waiting. Do this before error calls, and before
        //calling back listeners, so that bookkeeping is correct
        //in the event of an error and error is reported in correct order,
        //since the listeners will likely have errors if the
        //onError function does not throw.
        if (waiting[manager.id]) {
          delete waiting[manager.id];
          manager.isDone = true;
          context.waitCount -= 1;
          if (context.waitCount === 0) {
            //Clear the wait array used for cycles.
            waitAry = [];
          }
        }

        //Do not need to track manager callback now that it is defined.
        delete managerCallbacks[fullName];

        //Allow instrumentation like the optimizer to know the order
        //of modules executed and their dependencies.
        if (req.onResourceLoad && !manager.placeholder) {
          req.onResourceLoad(context, map, manager.depArray);
        }

        if (err) {
          errFile = (fullName ? makeModuleMap(fullName).url : '') ||
            err.fileName || err.sourceURL;
          errModuleTree = err.moduleTree;
          err = makeError('defineerror', 'Error evaluating ' +
            'module "' + fullName + '" at location "' +
            errFile + '":\n' +
            err + '\nfileName:' + errFile +
            '\nlineNumber: ' + (err.lineNumber || err.line), err);
          err.moduleName = fullName;
          err.moduleTree = errModuleTree;
          return req.onError(err);
        }

        //Let listeners know of this manager's value.
        for (i = 0; (cb = listeners[i]); i++) {
          cb(ret);
        }

        return undefined;
      }

      /**
       * Helper that creates a callack function that is called when a dependency
       * is ready, and sets the i-th dependency for the manager as the
       * value passed to the callback generated by this function.
       */
      function makeArgCallback(manager, i) {
        return function (value) {
          //Only do the work if it has not been done
          //already for a dependency. Cycle breaking
          //logic in forceExec could mean this function
          //is called more than once for a given dependency.
          if (!manager.depDone[i]) {
            manager.depDone[i] = true;
            manager.deps[i] = value;
            manager.depCount -= 1;
            if (!manager.depCount) {
              //All done, execute!
              execManager(manager);
            }
          }
        };
      }

      function callPlugin(pluginName, depManager) {
        var map = depManager.map,
          fullName = map.fullName,
          name = map.name,
          plugin = plugins[pluginName] ||
            (plugins[pluginName] = defined[pluginName]),
          load;

        //No need to continue if the manager is already
        //in the process of loading.
        if (depManager.loading) {
          return;
        }
        depManager.loading = true;

        load = function (ret) {
          depManager.callback = function () {
            return ret;
          };
          execManager(depManager);

          loaded[depManager.id] = true;

          //The loading of this plugin
          //might have placed other things
          //in the paused queue. In particular,
          //a loader plugin that depends on
          //a different plugin loaded resource.
          resume();
        };

        //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;

          //Indicate a the module is in process of loading.
          loaded[moduleName] = false;
          context.scriptCount += 1;

          //Indicate this is not a "real" module, so do not track it
          //for builds, it does not map to a real file.
          context.fake[moduleName] = true;

          //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);
        };

        //No need to continue if the plugin value has already been
        //defined by a build.
        if (fullName in defined) {
          load(defined[fullName]);
        } else {
          //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(name, makeRequire(map.parentMap, true, function (deps, cb) {
            var moduleDeps = [],
              i, dep, depMap;
            //Convert deps to full names and hold on to them
            //for reference later, when figuring out if they
            //are blocked by a circular dependency.
            for (i = 0; (dep = deps[i]); i++) {
              depMap = makeModuleMap(dep, map.parentMap);
              deps[i] = depMap.fullName;
              if (!depMap.prefix) {
                moduleDeps.push(deps[i]);
              }
            }
            depManager.moduleDeps = (depManager.moduleDeps || []).concat(moduleDeps);
            return context.require(deps, cb);
          }), load, config);
        }
      }

      /**
       * Adds the manager to the waiting queue. Only fully
       * resolved items should be in the waiting queue.
       */
      function addWait(manager) {
        if (!waiting[manager.id]) {
          waiting[manager.id] = manager;
          waitAry.push(manager);
          context.waitCount += 1;
        }
      }

      /**
       * Function added to every manager object. Created out here
       * to avoid new function creation for each manager instance.
       */
      function managerAdd(cb) {
        this.listeners.push(cb);
      }

      function getManager(map, shouldQueue) {
        var fullName = map.fullName,
          prefix = map.prefix,
          plugin = prefix ? plugins[prefix] ||
            (plugins[prefix] = defined[prefix]) : null,
          manager, created, pluginManager, prefixMap;

        if (fullName) {
          manager = managerCallbacks[fullName];
        }

        if (!manager) {
          created = true;
          manager = {
            //ID is just the full name, but if it is a plugin resource
            //for a plugin that has not been loaded,
            //then add an ID counter to it.
            id: (prefix && !plugin ?
                 (managerCounter++) + '__p@:' : '') +
              (fullName || '__r@' + (managerCounter++)),
            map: map,
            depCount: 0,
            depDone: [],
            depCallbacks: [],
            deps: [],
            listeners: [],
            add: managerAdd
          };

          specified[manager.id] = true;

          //Only track the manager/reuse it if this is a non-plugin
          //resource. Also only track plugin resources once
          //the plugin has been loaded, and so the fullName is the
          //true normalized value.
          if (fullName && (!prefix || plugins[prefix])) {
            managerCallbacks[fullName] = manager;
          }
        }

        //If there is a plugin needed, but it is not loaded,
        //first load the plugin, then continue on.
        if (prefix && !plugin) {
          prefixMap = makeModuleMap(prefix);

          //Clear out defined and urlFetched if the plugin was previously
          //loaded/defined, but not as full module (as in a build
          //situation). However, only do this work if the plugin is in
          //defined but does not have a module export value.
          if (prefix in defined && !defined[prefix]) {
            delete defined[prefix];
            delete urlFetched[prefixMap.url];
          }

          pluginManager = getManager(prefixMap, true);
          pluginManager.add(function (plugin) {
            //Create a new manager for the normalized
            //resource ID and have it call this manager when
            //done.
            var newMap = makeModuleMap(map.originalName, map.parentMap),
              normalizedManager = getManager(newMap, true);

            //Indicate this manager is a placeholder for the real,
            //normalized thing. Important for when trying to map
            //modules and dependencies, for instance, in a build.
            manager.placeholder = true;

            normalizedManager.add(function (resource) {
              manager.callback = function () {
                return resource;
              };
              execManager(manager);
            });
          });
        } else if (created && shouldQueue) {
          //Indicate the resource is not loaded yet if it is to be
          //queued.
          loaded[manager.id] = false;
          queueDependency(manager);
          addWait(manager);
        }

        return manager;
      }

      function main(inName, depArray, callback, relModuleMap) {
        var moduleMap = makeModuleMap(inName, relModuleMap),
          name = moduleMap.name,
          fullName = moduleMap.fullName,
          manager = getManager(moduleMap),
          id = manager.id,
          deps = manager.deps,
          i, depArg, depName, depPrefix, cjsMod;

        if (fullName) {
          //If module already defined for context, or already loaded,
          //then leave. Also leave if jQuery is registering but it does
          //not match the desired version number in the config.
          if (fullName in defined || loaded[id] === true ||
            (fullName === "jquery" && config.jQuery &&
              config.jQuery !== callback().fn.jquery)) {
            return;
          }

          //Set specified/loaded here for modules that are also loaded
          //as part of a layer, where onScriptLoad is not fired
          //for those cases. Do this after the inline define and
          //dependency tracing is done.
          specified[id] = true;
          loaded[id] = true;

          //If module is jQuery set up delaying its dom ready listeners.
          if (fullName === "jquery" && callback) {
            jQueryCheck(callback());
          }
        }

        //Attach real depArray and callback to the manager. Do this
        //only if the module has not been defined already, so do this after
        //the fullName checks above. IE can call main() more than once
        //for a module.
        manager.depArray = depArray;
        manager.callback = callback;

        //Add the dependencies to the deps field, and register for callbacks
        //on the dependencies.
        for (i = 0; i < depArray.length; i++) {
          depArg = depArray[i];
          //There could be cases like in IE, where a trailing comma will
          //introduce a null dependency, so only treat a real dependency
          //value as a dependency.
          if (depArg) {
            //Split the dependency name into plugin and name parts
            depArg = makeModuleMap(depArg, (name ? moduleMap : relModuleMap));
            depName = depArg.fullName;
            depPrefix = depArg.prefix;

            //Fix the name in depArray to be just the name, since
            //that is how it will be called back later.
            depArray[i] = depName;

            //Fast path CommonJS standard dependencies.
            if (depName === "require") {
              deps[i] = makeRequire(moduleMap);
            } else if (depName === "exports") {
              //CommonJS module spec 1.1
              deps[i] = defined[fullName] = {};
              manager.usingExports = true;
            } else if (depName === "module") {
              //CommonJS module spec 1.1
              manager.cjsModule = cjsMod = deps[i] = {
                id: name,
                uri: name ? context.nameToUrl(name, null, relModuleMap) : undefined,
                exports: defined[fullName]
              };
            } else if (depName in defined && !(depName in waiting) &&
              (!(fullName in needFullExec) ||
                (fullName in needFullExec && fullExec[depName]))) {
              //Module already defined, and not in a build situation
              //where the module is a something that needs full
              //execution and this dependency has not been fully
              //executed. See r.js's requirePatch.js for more info
              //on fullExec.
              deps[i] = defined[depName];
            } else {
              //Mark this dependency as needing full exec if
              //the current module needs full exec.
              if (fullName in needFullExec) {
                needFullExec[depName] = true;
                //Reset state so fully executed code will get
                //picked up correctly.
                delete defined[depName];
                urlFetched[depArg.url] = false;
              }

              //Either a resource that is not loaded yet, or a plugin
              //resource for either a plugin that has not
              //loaded yet.
              manager.depCount += 1;
              manager.depCallbacks[i] = makeArgCallback(manager, i);
              getManager(depArg, true).add(manager.depCallbacks[i]);
            }
          }
        }

        //Do not bother tracking the manager if it is all done.
        if (!manager.depCount) {
          //All done, execute!
          execManager(manager);
        } else {
          addWait(manager);
        }
      }

      /**
       * Convenience method to call main for a define call that was put on
       * hold in the defQueue.
       */
      function callDefMain(args) {
        main.apply(null, args);
      }

      /**
       * jQuery 1.4.3+ supports ways to hold off calling
       * calling jQuery ready callbacks until all scripts are loaded. Be sure
       * to track it if the capability exists.. Also, since jQuery 1.4.3 does
       * not register as a module, need to do some global inference checking.
       * Even if it does register as a module, not guaranteed to be the precise
       * name of the global. If a jQuery is tracked for this context, then go
       * ahead and register it as a module too, if not already in process.
       */
      jQueryCheck = function (jqCandidate) {
        if (!context.jQuery) {
          var $ = jqCandidate || (typeof jQuery !== "undefined" ? jQuery : null);

          if ($) {
            //If a specific version of jQuery is wanted, make sure to only
            //use this jQuery if it matches.
            if (config.jQuery && $.fn.jquery !== config.jQuery) {
              return;
            }

            if ("holdReady" in $ || "readyWait" in $) {
              context.jQuery = $;

              //Manually create a "jquery" module entry if not one already
              //or in process. Note this could trigger an attempt at
              //a second jQuery registration, but does no harm since
              //the first one wins, and it is the same value anyway.
              callDefMain(["jquery", [], function () {
                return jQuery;
              }]);

              //Ask jQuery to hold DOM ready callbacks.
              if (context.scriptCount) {
                jQueryHoldReady($, true);
                context.jQueryIncremented = true;
              }
            }
          }
        }
      };

      function findCycle(manager, traced) {
        var fullName = manager.map.fullName,
          depArray = manager.depArray,
          fullyLoaded = true,
          i, depName, depManager, result;

        if (manager.isDone || !fullName || !loaded[fullName]) {
          return result;
        }

        //Found the cycle.
        if (traced[fullName]) {
          return manager;
        }

        traced[fullName] = true;

        //Trace through the dependencies.
        if (depArray) {
          for (i = 0; i < depArray.length; i++) {
            //Some array members may be null, like if a trailing comma
            //IE, so do the explicit [i] access and check if it has a value.
            depName = depArray[i];
            if (!loaded[depName] && !reservedDependencies[depName]) {
              fullyLoaded = false;
              break;
            }
            depManager = waiting[depName];
            if (depManager && !depManager.isDone && loaded[depName]) {
              result = findCycle(depManager, traced);
              if (result) {
                break;
              }
            }
          }
          if (!fullyLoaded) {
            //Discard the cycle that was found, since it cannot
            //be forced yet. Also clear this module from traced.
            result = undefined;
            delete traced[fullName];
          }
        }

        return result;
      }

      function forceExec(manager, traced) {
        var fullName = manager.map.fullName,
          depArray = manager.depArray,
          i, depName, depManager, prefix, prefixManager, value;


        if (manager.isDone || !fullName || !loaded[fullName]) {
          return undefined;
        }

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

          traced[fullName] = true;
        }

        //Trace through the dependencies.
        if (depArray) {
          for (i = 0; i < depArray.length; i++) {
            //Some array members may be null, like if a trailing comma
            //IE, so do the explicit [i] access and check if it has a value.
            depName = depArray[i];
            if (depName) {
              //First, make sure if it is a plugin resource that the
              //plugin is not blocked.
              prefix = makeModuleMap(depName).prefix;
              if (prefix && (prefixManager = waiting[prefix])) {
                forceExec(prefixManager, traced);
              }
              depManager = waiting[depName];
              if (depManager && !depManager.isDone && loaded[depName]) {
                value = forceExec(depManager, traced);
                manager.depCallbacks[i](value);
              }
            }
          }
        }

        return defined[fullName];
      }

      /**
       * Checks if all modules for a context are loaded, and if so, evaluates the
       * new ones in right dependency order.
       *
       * @private
       */
      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 = "", hasLoadedProp = false, stillLoading = false,
          cycleDeps = [],
          i, prop, err, manager, cycleManager, moduleDeps;

        //If there are items still in the paused queue processing wait.
        //This is particularly important in the sync case where each paused
        //item is processed right away but there may be more waiting.
        if (context.pausedCount > 0) {
          return undefined;
        }

        //Determine if priority loading is done. If so clear the priority. If
        //not, then do not check
        if (config.priorityWait) {
          if (isPriorityDone()) {
            //Call resume, since it could have
            //some waiting dependencies to trace.
            resume();
          } else {
            return undefined;
          }
        }

        //See if anything is still in flight.
        for (prop in loaded) {
          if (!(prop in empty)) {
            hasLoadedProp = true;
            if (!loaded[prop]) {
              if (expired) {
                noLoads += prop + " ";
              } else {
                stillLoading = true;
                if (prop.indexOf('!') === -1) {
                  //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.
                  cycleDeps = [];
                  break;
                } else {
                  moduleDeps = managerCallbacks[prop] && managerCallbacks[prop].moduleDeps;
                  if (moduleDeps) {
                    cycleDeps.push.apply(cycleDeps, moduleDeps);
                  }
                }
              }
            }
          }
        }

        //Check for exit conditions.
        if (!hasLoadedProp && !context.waitCount) {
          //If the loaded object had no items, then the rest of
          //the work below does not need to be done.
          return undefined;
        }
        if (expired && noLoads) {
          //If wait time expired, throw error of unloaded modules.
          err = makeError("timeout", "Load timeout for modules: " + noLoads);
          err.requireType = "timeout";
          err.requireModules = noLoads;
          err.contextName = context.contextName;
          return req.onError(err);
        }

        //If still loading but a plugin is waiting on a regular module cycle
        //break the cycle.
        if (stillLoading && cycleDeps.length) {
          for (i = 0; (manager = waiting[cycleDeps[i]]); i++) {
            if ((cycleManager = findCycle(manager, {}))) {
              forceExec(cycleManager, {});
              break;
            }
          }

        }

        //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 && (stillLoading || context.scriptCount)) {
          //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);
          }
          return undefined;
        }

        //If still have items in the waiting cue, but all modules have
        //been loaded, then it means there are some circular dependencies
        //that need to be broken.
        //However, as a waiting thing is fired, then it can add items to
        //the waiting cue, and those items should not be fired yet, so
        //make sure to redo the checkLoaded call after breaking a single
        //cycle, if nothing else loaded then this logic will pick it up
        //again.
        if (context.waitCount) {
          //Cycle through the waitAry, and call items in sequence.
          for (i = 0; (manager = waitAry[i]); i++) {
            forceExec(manager, {});
          }

          //If anything got placed in the paused queue, run it down.
          if (context.paused.length) {
            resume();
          }

          //Only allow this recursion to a certain depth. Only
          //triggered by errors in calling a module in which its
          //modules waiting on it cannot finish loading, or some circular
          //dependencies that then may add more dependencies.
          //The value of 5 is a bit arbitrary. Hopefully just one extra
          //pass, or two for the case of circular dependencies generating
          //more work that gets resolved in the sync node case.
          if (checkLoadedDepth < 5) {
            checkLoadedDepth += 1;
            checkLoaded();
          }
        }

        checkLoadedDepth = 0;

        //Check for DOM ready, and nothing is waiting across contexts.
        req.checkReadyState();

        return undefined;
      }

      /**
       * Resumes tracing of dependencies and then checks if everything is loaded.
       */
      resume = function () {
        var manager, map, url, i, p, args, fullName;

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

        resumeDepth += 1;

        if (context.scriptCount <= 0) {
          //Synchronous envs will push the number below zero with the
          //decrement above, be sure to set it back to zero for good measure.
          //require() calls that also do not end up loading scripts could
          //push the number negative too.
          context.scriptCount = 0;
        }

        //Make sure any remaining defQueue items get properly processed.
        while (defQueue.length) {
          args = defQueue.shift();
          if (args[0] === null) {
            return req.onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1]));
          } else {
            callDefMain(args);
          }
        }

        //Skip the resume of paused dependencies
        //if current context is in priority wait.
        if (!config.priorityWait || isPriorityDone()) {
          while (context.paused.length) {
            p = context.paused;
            context.pausedCount += p.length;
            //Reset paused list
            context.paused = [];

            for (i = 0; (manager = p[i]); i++) {
              map = manager.map;
              url = map.url;
              fullName = map.fullName;

              //If the manager is for a plugin managed resource,
              //ask the plugin to load it now.
              if (map.prefix) {
                callPlugin(map.prefix, manager);
              } else {
                //Regular dependency.
                if (!urlFetched[url] && !loaded[fullName]) {
                  (config.requireLoad || req.load)(context, fullName, url);

                  //Mark the URL as fetched, but only 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) {
                    urlFetched[url] = true;
                  }
                }
              }
            }

            //Move the start time for timeout forward.
            context.startTime = (new Date()).getTime();
            context.pausedCount -= p.length;
          }
        }

        //Only check if loaded when resume depth is 1. It is likely that
        //it is only greater than 1 in sync environments where a factory
        //function also then calls the callback-style require. In those
        //cases, the checkLoaded should not occur until the resume
        //depth is back at the top level.
        if (resumeDepth === 1) {
          checkLoaded();
        }

        resumeDepth -= 1;

        return undefined;
      };

      //Define the context object. Many of these fields are on here
      //just to make debugging easier.
      context = {
        contextName: contextName,
        config: config,
        defQueue: defQueue,
        waiting: waiting,
        waitCount: 0,
        specified: specified,
        loaded: loaded,
        urlMap: urlMap,
        urlFetched: urlFetched,
        scriptCount: 0,
        defined: defined,
        paused: [],
        pausedCount: 0,
        plugins: plugins,
        needFullExec: needFullExec,
        fake: {},
        fullExec: fullExec,
        managerCallbacks: managerCallbacks,
        makeModuleMap: makeModuleMap,
        normalize: normalize,
        /**
         * Set a configuration for the context.
         * @param {Object} cfg config object to integrate.
         */
        configure: function (cfg) {
          var paths, prop, packages, pkgs, packagePaths, requireWait;

          //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.
          paths = config.paths;
          packages = config.packages;
          pkgs = config.pkgs;

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

          //Adjust paths if necessary.
          if (cfg.paths) {
            for (prop in cfg.paths) {
              if (!(prop in empty)) {
                paths[prop] = cfg.paths[prop];
              }
            }
            config.paths = paths;
          }

          packagePaths = cfg.packagePaths;
          if (packagePaths || cfg.packages) {
            //Convert packagePaths into a packages config.
            if (packagePaths) {
              for (prop in packagePaths) {
                if (!(prop in empty)) {
                  configurePackageDir(pkgs, packagePaths[prop], prop);
                }
              }
            }

            //Adjust packages if necessary.
            if (cfg.packages) {
              configurePackageDir(pkgs, cfg.packages);
            }

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

          //If priority loading is in effect, trigger the loads now
          if (cfg.priority) {
            //Hold on to requireWait value, and reset it after done
            requireWait = context.requireWait;

            //Allow tracing some require calls to allow the fetching
            //of the priority config.
            context.requireWait = false;
            //But first, call resume to register any defined modules that may
            //be in a data-main built file before the priority config
            //call.
            resume();

            context.require(cfg.priority);

            //Trigger a resume right away, for the case when
            //the script with the priority load is done as part
            //of a data-main call. In that case the normal resume
            //call will not happen because the scriptCount will be
            //at 1, since the script for data-main is being processed.
            resume();

            //Restore previous state.
            context.requireWait = requireWait;
            config.priorityWait = cfg.priority;
          }

          //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);
          }
        },

        requireDefined: function (moduleName, relModuleMap) {
          return makeModuleMap(moduleName, relModuleMap).fullName in defined;
        },

        requireSpecified: function (moduleName, relModuleMap) {
          return makeModuleMap(moduleName, relModuleMap).fullName in specified;
        },

        require: function (deps, callback, relModuleMap) {
          var moduleName, fullName, moduleMap;
          if (typeof deps === "string") {
            if (isFunction(callback)) {
              //Invalid call
              return req.onError(makeError("requireargs", "Invalid require call"));
            }

            //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 relModuleMap
            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 relModuleMap.
            moduleName = deps;
            relModuleMap = callback;

            //Normalize module name, if it contains . or ..
            moduleMap = makeModuleMap(moduleName, relModuleMap);
            fullName = moduleMap.fullName;

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

          //Call main but only if there are dependencies or
          //a callback to call.
          if (deps && deps.length || callback) {
            main(null, deps, callback, relModuleMap);
          }

          //If the require call does not trigger anything new to load,
          //then resume the dependency processing.
          if (!context.requireWait) {
            while (!context.scriptCount && context.paused.length) {
              resume();
            }
          }
          return context.require;
        },

        /**
         * Internal method to transfer globalQueue items to this context's
         * defQueue.
         */
        takeGlobalQueue: function () {
          //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(context.defQueue,
              [context.defQueue.length - 1, 0].concat(globalDefQueue));
            globalDefQueue = [];
          }
        },

        /**
         * 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 args;

          context.takeGlobalQueue();

          while (defQueue.length) {
            args = defQueue.shift();

            if (args[0] === null) {
              args[0] = moduleName;
              break;
            } else if (args[0] === moduleName) {
              //Found matching define call for this script!
              break;
            } else {
              //Some other named define call, most likely the result
              //of a build layer that included many define calls.
              callDefMain(args);
              args = null;
            }
          }
          if (args) {
            callDefMain(args);
          } else {
            //A script that does not call define(), so just simulate
            //the call for it. Special exception for jQuery dynamic load.
            callDefMain([moduleName, [],
                         moduleName === "jquery" && typeof jQuery !== "undefined" ?
                         function () {
                           return jQuery;
                         } : null]);
          }

          //Doing this scriptCount decrement branching because sync envs
          //need to decrement after resume, otherwise it looks like
          //loading is complete after the first dependency is fetched.
          //For browsers, it works fine to decrement after, but it means
          //the checkLoaded setTimeout 50 ms cost is taken. To avoid
          //that cost, decrement beforehand.
          if (req.isAsync) {
            context.scriptCount -= 1;
          }
          resume();
          if (!req.isAsync) {
            context.scriptCount -= 1;
          }
        },

        /**
         * 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,
            config = context.config;

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

          //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 ? 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--) {
              parentModule = syms.slice(0, i).join("/");
              if (paths[parentModule]) {
                syms.splice(0, i, paths[parentModule]);
                break;
              } else if ((pkg = pkgs[parentModule])) {
                //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;
        }
      };

      //Make these visible on the context so can be called at the very
      //end of the file to bootstrap
      context.jQueryCheck = jQueryCheck;
      context.resume = resume;

      return context;
    }

    /**
     * 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) {

      //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 = arguments[2];
        } else {
          deps = [];
        }
      }

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

      context = contexts[contextName] ||
        (contexts[contextName] = newContext(contextName));

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

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

    /**
     * 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;
    }

    /**
     * Global require.toUrl(), to match global require, mostly useful
     * for debugging/work in the global space.
     */
    req.toUrl = function (moduleNamePlusExt) {
      return contexts[defContextName].toUrl(moduleNamePlusExt);
    };

    req.version = version;

    //Used to filter out dependencies that are already paths.
    req.jsExtRegExp = /^\/|:|\?|\.js$/;
    s = req.s = {
      contexts: contexts,
      //Stores a list of URLs that should not get async script tag treatment.
      skipAsync: {}
    };

    req.isAsync = req.isBrowser = isBrowser;
    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) {
      req.resourcesReady(false);

      context.scriptCount += 1;
      req.attach(url, context, moduleName);

      //If tracking a jQuery, then make sure its ready callbacks
      //are put on hold to prevent its ready callbacks from
      //triggering too soon.
      if (context.jQuery && !context.jQueryIncremented) {
        jQueryHoldReady(context.jQuery, true);
        context.jQueryIncremented = true;
      }
    };

    function getInteractiveScript() {
      var scripts, i, script;
      if (interactiveScript && interactiveScript.readyState === 'interactive') {
        return interactiveScript;
      }

      scripts = document.getElementsByTagName('script');
      for (i = scripts.length - 1; i > -1 && (script = scripts[i]); i--) {
        if (script.readyState === 'interactive') {
          return (interactiveScript = script);
        }
      }

      return null;
    }

    /**
     * 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]);

      return undefined;
    };

    define.amd = {
      multiversion: true,
      plugins: true,
      jQuery: true
    };

    /**
     * Executes the text. Normally just uses eval, but can be modified
     * to use a more environment specific call.
     * @param {String} text the text to execute/evaluate.
     */
    req.exec = function (text) {
      return eval(text);
    };

    /**
     * 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
     */
    req.execCb = function (name, callback, args, exports) {
      return callback.apply(exports, args);
    };


    /**
     * Adds a node to the DOM. Public function since used by the order plugin.
     * This method should not normally be called by outside code.
     */
    req.addScriptToDom = function (node) {
      //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;
    };

    /**
     * callback for script loads, used to check status of loading.
     *
     * @param {Event} evt the event from the browser for the script
     * that was loaded.
     *
     * @private
     */
    req.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.
      var node = evt.currentTarget || evt.srcElement, contextName, moduleName,
        context;

      if (evt.type === "load" || (node && readyRegExp.test(node.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.
        contextName = node.getAttribute("data-requirecontext");
        moduleName = node.getAttribute("data-requiremodule");
        context = contexts[contextName];

        contexts[contextName].completeLoad(moduleName);

        //Clean up script binding. 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.
          node.detachEvent("onreadystatechange", req.onScriptLoad);
        } else {
          node.removeEventListener("load", req.onScriptLoad, false);
        }
      }
    };

    /**
     * Attaches the script represented by the URL to the current
     * environment. Right now only supports browser loading,
     * but can be redefined in other environments to do the right thing.
     * @param {String} url the url of the script to attach.
     * @param {Object} context the context that wants the script.
     * @param {moduleName} the name of the module that is associated with the script.
     * @param {Function} [callback] optional callback, defaults to require.onScriptLoad
     * @param {String} [type] optional type, defaults to text/javascript
     * @param {Function} [fetchOnlyFunction] optional function to indicate the script node
     * should be set up to fetch the script but do not attach it to the DOM
     * so that it can later be attached to execute it. This is a way for the
     * order plugin to support ordered loading in IE. Once the script is fetched,
     * but not executed, the fetchOnlyFunction will be called.
     */
    req.attach = function (url, context, moduleName, callback, type, fetchOnlyFunction) {
      var node;
      if (isBrowser) {
        //In the browser so use a script tag
        callback = callback || req.onScriptLoad;
        node = context && context.config && context.config.xhtml ?
               document.createElementNS("http://www.w3.org/1999/xhtml", "html:script") :
               document.createElement("script");
        node.type = type || (context && context.config.scriptType) ||
          "text/javascript";
        node.charset = "utf-8";
        //Use async so Gecko does not block on executing the script if something
        //like a long-polling comet tag is being run first. Gecko likes
        //to evaluate scripts in DOM order, even for dynamic scripts.
        //It will fetch them async, but only evaluate the contents in DOM
        //order, so a long-polling script tag can delay execution of scripts
        //after it. But telling Gecko we expect async gets us the behavior
        //we want -- execute it whenever it is finished downloading. Only
        //Helps Firefox 3.6+
        //Allow some URLs to not be fetched async. Mostly helps the order!
        //plugin
        node.async = !s.skipAsync[url];

        if (context) {
          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()
          // TODO: a better way to check interactive mode
          !(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;


          if (fetchOnlyFunction) {
            //Need to use old school onreadystate here since
            //when the event fires and the node is not attached
            //to the DOM, the evt.srcElement is null, so use
            //a closure to remember the node.
            node.onreadystatechange = function (evt) {
              //Script loaded but not executed.
              //Clear loaded handler, set the real one that
              //waits for script execution.
              if (node.readyState === 'loaded') {
                node.onreadystatechange = null;
                node.attachEvent("onreadystatechange", callback);
                fetchOnlyFunction(node);
              }
            };
          } else {
            node.attachEvent("onreadystatechange", callback);
          }
        } else {
          node.addEventListener("load", callback, false);
        }
        node.src = url;

        //Fetch only means waiting to attach to DOM after loaded.
        if (!fetchOnlyFunction) {
          req.addScriptToDom(node);
        }

        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);
      }
      return null;
    };

    //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.
      scripts = document.getElementsByTagName("script");

      for (globalI = scripts.length - 1; globalI > -1 && (script = scripts[globalI]); globalI--) {
        //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.
        if ((dataMain = script.getAttribute('data-main'))) {
          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];

          break;
        }
      }
    }

    //See if there is nothing waiting across contexts, and if not, trigger
    //resourcesReady.
    req.checkReadyState = function () {
      var contexts = s.contexts, prop;
      for (prop in contexts) {
        if (!(prop in empty)) {
          if (contexts[prop].waitCount) {
            return;
          }
        }
      }
      req.resourcesReady(true);
    };

    /**
     * Internal function that is triggered whenever all scripts/resources
     * have been loaded by the loader. Can be overridden by other, for
     * instance the domReady plugin, which wants to know when all resources
     * are loaded.
     */
    req.resourcesReady = function (isReady) {
      var contexts, context, prop;

      //First, set the public variable indicating that resources are loading.
      req.resourcesDone = isReady;

      if (req.resourcesDone) {
        //If jQuery with DOM ready delayed, release it now.
        contexts = s.contexts;
        for (prop in contexts) {
          if (!(prop in empty)) {
            context = contexts[prop];
            if (context.jQueryIncremented) {
              jQueryHoldReady(context.jQuery, false);
              context.jQueryIncremented = false;
            }
          }
        }
      }
    };

    //FF < 3.6 readyState fix. Needed so that domReady plugin
    //works well in that environment, since require.js is normally
    //loaded via an HTML script tag so it will be there before window load,
    //where the domReady plugin is more likely to be loaded after window load.
    req.pageLoaded = function () {
      if (document.readyState !== "complete") {
        document.readyState = "complete";
      }
    };
    if (isBrowser) {
      if (document.addEventListener) {
        if (!document.readyState) {
          document.readyState = "loading";
          window.addEventListener("load", req.pageLoaded, false);
        }
      }
    }

    //Set up default context. If require was a configuration object, use that as base config.
    req(cfg);

    //If modules are built into require.js, then need to make sure dependencies are
    //traced. Use a setTimeout in the browser world, to allow all the modules to register
    //themselves. In a non-browser env, assume that modules are not built into require.js,
    //which seems odd to do on the server.
    if (req.isAsync && typeof setTimeout !== "undefined") {
      ctx = s.contexts[(cfg.context || defContextName)];
      //Indicate that the script that includes require() is still loading,
      //so that require()'d dependencies are not traced until the end of the
      //file is parsed (approximated via the setTimeout call).
      ctx.requireWait = true;
      setTimeout(function () {
        ctx.requireWait = false;

        if (!ctx.scriptCount) {
          ctx.resume();
        }
        req.checkReadyState();
      }, 0);
    }
  }());


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

    (function () {

      require.load = function (context, moduleName, url) {
        //Indicate a the module is in process of loading.
        context.scriptCount += 1;

        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, strict: 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 () {
      var nodeReq = requirejsVars.nodeRequire,
        req = requirejsVars.require,
        def = requirejsVars.define,
        fs = nodeReq('fs'),
        path = nodeReq('path'),
        vm = nodeReq('vm');

      //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.fullName;

        if (moduleName in context.defined) {
          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));';
      };

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

        //Indicate a the module is in process of loading.
        context.scriptCount += 1;

        if (path.existsSync(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);

        return undefined;
      };

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

      //Hold on to the original execCb to use in useLib calls.
      requirejsVars.nodeRequireExecCb = require.execCb;
    }());

  }

  //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;
      });

    }
    /**
     * @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
          };
        }())
      };
      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.

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

    define('parse', ['./uglifyjs/index'], function (uglify) {
      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; (item = ary[i]); 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;
          }

          if (!(deps = getValidDeps(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; (moduleCall = moduleList[i]); 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 ? 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 (recurseCallback(node, onMatch)) {
                  //The onMatch indicated parsing should
                  //stop for children of this node.
                  continue;
                }
                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') {
            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];
            if ((callback = this.findAnonDefineFactory(n))) {
              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;
          }

          if ((deps = getValidDeps(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) {
        if (this.isDefineNode(node)) {
          return true;
        }

        if (isArray(node)) {
          for (var i = 0, n; 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;
              }

              if (!(deps = validateDeps(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);
      };

      return parse;
    });
    /**
     * @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: false, strict: false, plusplus: false  */
    /*global define: false */

    define('pragma', ['parse', 'logger'], function (parse, logger) {

      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) && !(prop in temp)) {
              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)\s*\(/,
        nsWrapRegExp: /\/\*requirejs namespace: true \*\//,
        apiDefRegExp: /var requirejs, require, define;/,
        defineCheckRegExp: /typeof\s+define\s*===\s*["']function["']\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(');

            //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 this one last, since it is a subset of the more specific
            //checks above.
            fileContents = fileContents.replace(pragma.defineCheckRegExp,
              "typeof " + ns + ".define === 'function' && " + 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,
            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 (test in hasConfig) {
                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; (dep = deps[i]); i++) {
                  if (dep.indexOf('!') !== -1) {
                    (pluginCollector[moduleName] ||
                      (pluginCollector[moduleName] = [])).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: false, nomen: false, regexp: false */
    /*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) {

        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 = [];

          //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")) {
              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);
              }

              //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,
            fileContents : fileContents
          };
        }

        optimize = {
          licenseCommentRegExp: /\/\*[\s\S]*?\*\//g,

          /**
           * 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) {
            var parts = (config.optimize + "").split('.'),
              optimizerName = parts[0],
              keepLines = parts[1] === 'keepLines';

            if (!fileContents) {
              fileContents = file.readFile(fileName);
            }

            fileContents = optimize.js(fileName, fileContents, optimizerName,
              keepLines, 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 {String} [optimizerName] optional name of the optimizer to
           * use. 'uglify' is default.
           * @param {Boolean} [keepLines] whether to keep line returns in the optimization.
           * @param {Object} [config] the build config object.
           * @param {Array} [pluginCollector] storage for any plugin resources
           * found.
           */
          js: function (fileName, fileContents, optimizerName, keepLines, config, pluginCollector) {
            var licenseContents = '',
              optFunc, match, comment;

            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.
                optimize.licenseCommentRegExp.lastIndex = 0;
                while ((match = optimize.licenseCommentRegExp.exec(fileContents))) {
                  comment = match[0];
                  //Only keep the comments if they are license comments.
                  if (comment.indexOf('@license') !== -1 ||
                    comment.indexOf('/*!') === 0) {
                    licenseContents += comment + '\n';
                  }
                }
              }

              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, {}),
              fileContents = flat.fileContents,
              startIndex, endIndex, buildText;

            //Do comment removal.
            try {
              if (config.optimizeCss.indexOf(".keepComments") === -1) {
                startIndex = -1;
                //Get rid of comments.
                while ((startIndex = fileContents.indexOf("/*")) !== -1) {
                  endIndex = fileContents.indexOf("*/", startIndex + 2);
                  if (endIndex === -1) {
                    throw "Improper comment in CSS file: " + fileName;
                  }
                  fileContents = fileContents.substring(0, startIndex) + fileContents.substring(endIndex + 2, fileContents.length);
                }
              }
              //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;

              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);
              } catch (e) {
                logger.error('Cannot uglify file: ' + fileName + '. Skipping it. Error is:\n' + e.toString());
              }
              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.
     */

    /*jslint nomen: false, plusplus: false, regexp: false, strict: false */
    /*global require: false, 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'],
      function (file,           pragma,   parse) {

        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]+)["']/,
            oldDef;


          /** Print out some extrs info about the module tree that caused the error. **/
          require.onError = function (err) {

            var msg = '\nIn module tree:\n',
              standardIndent = '  ',
              tree = err.moduleTree,
              i, j, mod;

            if (tree && tree.length > 0) {
              for (i = tree.length - 1; i > -1 && (mod = tree[i]); i--) {
                for (j = tree.length - i; j > -1; j--) {
                  msg += standardIndent;
                }
                msg += mod + '\n';
              }

              err = new Error(err.toString() + msg);
            }

            throw err;
          };

          //Stored cached file contents for reuse in other layers.
          require._cachedFileContents = {};

          /** 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: "",
              context: require.s.contexts._
            };

            //Return the previous context in case it is needed, like for
            //the basic config object.
            return oldContext;
          };

          require._buildReset();

          /**
           * 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.
            return url.indexOf("://") === -1 && url.indexOf("?") === -1 &&
              url.indexOf('empty:') !== 0 && url.indexOf('//') !== 0;
          };

          //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 require.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, obj) {
            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);
          };

          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;
          }

          //Override load so that the file paths can be collected.
          require.load = function (context, moduleName, url) {
            /*jslint evil: true */
            var contents, pluginBuilderMatch, builderName;

            context.scriptCount += 1;

            //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 (moduleName in context.plugins) {
                //plugins need to have their source evaled as-is.
                context.needFullExec[moduleName] = true;
              }

              try {
                if (url in require._cachedFileContents &&
                  (!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 (moduleName in context.plugins) {
                    //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.normalize(pluginBuilderMatch[3], moduleName);
                      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.
                  (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);
            }

            //Mark the module loaded.
            context.loaded[moduleName] = true;
          };


          //Called when execManager runs for a dependency. Used to figure out
          //what order of execution.
          require.onResourceLoad = function (context, map) {
            var fullName = map.fullName,
              url;

            //Ignore "fake" modules, usually generated by plugin code, since
            //they do not map back to a real file to include in the optimizer,
            //or it will be included, but in a different form.
            if (context.fake[fullName]) {
              return;
            }

            //A plugin.
            if (map.prefix) {
              if (!layer.pathAdded[fullName]) {
                layer.buildFilePaths.push(fullName);
                //For plugins the real path is not knowable, use the name
                //for both module to file and file to module mappings.
                layer.buildPathMap[fullName] = fullName;
                layer.buildFileToModule[fullName] = fullName;
                layer.modulesWithNames[fullName] = true;
                layer.pathAdded[fullName] = 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, map.fullName, map.url);
              if (!layer.pathAdded[url] && layer.buildPathMap[fullName]) {
                //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;
          };

          //Marks module has having a name, and optionally executes the
          //callback, but only if it meets certain criteria.
          require.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;
          };
        };
      });
    /**
     * @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  */
    /*global define, require */


    define('build', [ 'lang', 'logger', 'env!env/file', 'parse', 'optimize', 'pragma',
                      'env!env/load', 'requirePatch'],
      function (lang,   logger,   file,          parse,    optimize,   pragma,
                load,           requirePatch) {
        '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 + ";";
          }
        }

        /**
         * If the path looks like an URL, throw an error. This is to prevent
         * people from using URLs with protocols in the build config, since
         * the optimizer is not set up to do network access. However, be
         * sure to allow absolute paths on Windows, like C:\directory.
         */
        function disallowUrls(path) {
          if ((path.indexOf('://') !== -1 || path.indexOf('//') === 0) && path !== 'empty:') {
            throw new Error('Path is not supported: ' + path +
              '\nOptimizer can only handle' +
              ' local paths. Download the locally if necessary' +
              ' and update the config to use a local path.\n' +
              'http://requirejs.org/docs/errors.html#pathnotsupported');
          }
        }

        function endsWithSlash(dirName) {
          if (dirName.charAt(dirName.length - 1) !== "/") {
            dirName += "/";
          }
          disallowUrls(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(anonDefRegExp, namespaceWithDot, 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(anonDefRegExp, namespaceWithDot, 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 buildFile, cmdConfig;

          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);
        };

        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.
                  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 = 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.
              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 (file.exists(finalPath)) {
                file.deleteFile(finalPath);
              }
              file.renameFile(finalPath + '-temp', finalPath);
            });
          }

          //Do other optimizations.
          if (config.out && !config.cssIn) {
            //Just need to worry about one JS file.
            fileName = config.modules[0]._buildPath;
            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; (fileName = fileNames[i]); 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.anonDefRegExp,
                config.namespaceWithDot,
                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; (resource = resources[i]); 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.anonDefRegExp,
                          config.namespaceWithDot
                        ),
                        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);
          }

          //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, prop, name, value) {
          if (!result[prop]) {
            result[prop] = {};
          }
          name = name.substring((prop + '.').length, name.length);
          result[prop][name] = value;
        }

        //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
            };

          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.split('.')[0], 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; (prop = props[i]); i++) {
              if (obj.hasOwnProperty(prop)) {
                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; (prop = props[i]); 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, 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/";
              }

            } 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) {
              //If no baseUrl, then use the directory holding the main config.
              if (!mainConfig.baseUrl) {
                mainConfig.baseUrl = mainConfigFile.substring(0, mainConfigFile.lastIndexOf('/'));
              }
              build.makeAbsConfig(mainConfig, mainConfigFile);
              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) {
            throw new Error("ERROR: 'baseUrl' option missing.");
          }
          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.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
              }
            ];
          }

          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";
            }
          }

          //Do not allow URLs for paths resources.
          if (config.paths) {
            for (prop in config.paths) {
              if (config.paths.hasOwnProperty(prop)) {
                disallowUrls(config.paths[prop]);
              }
            }
          }

          //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());
          }


          //Set up proper info for namespaces and using namespaces in transport
          //wrappings.
          config.namespaceWithDot = config.namespace ? config.namespace + '.' : '';
          config.anonDefRegExp = build.makeAnonDefRegExp(config.namespaceWithDot);

          //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 ('fileExclusionRegExp' in config) {
            if (typeof config.fileExclusionRegExp === "string") {
              file.exclusionRegExp = new RegExp(config.fileExclusionRegExp);
            } else {
              file.exclusionRegExp = config.fileExclusionRegExp;
            }
          } else if ('dirExclusionRegExp' in config) {
            //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; (module = modules[i]); 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);
          }

          //Take it out of the specified modules. Specified modules are mostly
          //used to find require modifiers.
          delete layer.specified[module];
        };

        /**
         * 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;

          //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.delegate(baseConfig));

          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.delegate(baseConfig);
            lang.mixin(override, module.override, true);
            require(override);
          }

          //Figure out module layer dependencies by calling require to do the work.
          require(include);

          //Pull out the layer dependencies.
          layer.specified = context.specified;

          //Reset config
          if (module.override) {
            require(baseConfig);
          }

          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 ? config.namespace + '.' : '',
            context = layer.context,
            anonDefRegExp = config.anonDefRegExp,
            path, reqIndex, fileContents, currContents,
            i, moduleName,
            parts, builder, writeApi;

          //Use override settings, particularly for pragmas
          if (module.override) {
            config = lang.delegate(config);
            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; (path = layer.buildFilePaths[i]); i++) {
            moduleName = layer.buildFileToModule[path];

            //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(anonDefRegExp, namespace, moduleName, path, input, layer));
                  if (config.onBuildWrite) {
                    fileContents = config.onBuildWrite(moduleName, path, fileContents);
                  }
                };
                builder.write(parts.prefix, parts.name, writeApi);
              }
            } else {
              currContents = file.readFile(path);

              if (config.onBuildRead) {
                currContents = config.onBuildRead(moduleName, path, currContents);
              }

              if (config.namespace) {
                currContents = pragma.namespace(currContents, config.namespace);
              }

              currContents = build.toTransport(anonDefRegExp, namespace, moduleName, path, currContents, layer);

              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) {
              //If including jquery, register the module correctly, otherwise
              //register an empty function. For jquery, make sure jQuery is
              //a real object, and perhaps not some other file mapping, like
              //to zepto.
              if (moduleName === 'jquery') {
                fileContents += '\n(function () {\n' +
                  'var jq = typeof jQuery !== "undefined" && jQuery;\n' +
                  namespace +
                  'define("jquery", [], function () { return jq; });\n' +
                  '}());\n';
              } else {
                fileContents += '\n' + namespace + 'define("' + moduleName + '", function(){});\n';
              }
            }
          }

          return {
            text: config.wrap ?
                  config.wrap.start + fileContents + config.wrap.end :
                  fileContents,
            buildText: buildFileContents
          };
        };

        /**
         * Creates the regexp to find anonymous defines.
         * @param {String} namespace an optional namespace to use. The namespace
         * should *include* a trailing dot. So a valid value would be 'foo.'
         * @returns {RegExp}
         */
        build.makeAnonDefRegExp = function (namespace) {
          //This regexp is not bullet-proof, and it has one optional part to
          //avoid issues with some Dojo transition modules that use a
          //define(\n//begin v1.x content
          //for a comment.
          return new RegExp('(^|[^\\.])(' + (namespace || '').replace(/\./g, '\\.') +
            'define|define)\\s*\\(\\s*(\\/\\/[^\\n\\r]*[\\r\\n])?(\\[|function|[\\w\\d_\\-\\$]+\\s*\\)|\\{|["\']([^"\']+)["\'])(\\s*,\\s*f)?');
        };

        build.leadingCommaRegExp = /^\s*,/;

        build.toTransport = function (anonDefRegExp, namespace, moduleName, path, contents, layer) {

          //If anonymous module, insert the module name.
          return contents.replace(anonDefRegExp, function (match, start, callName, possibleComment, suffix, namedModule, namedFuncStart) {
            //A named module with either listed dependencies or an object
            //literal for a value. Skip it. If named module, only want ones
            //whose next argument is a function literal to scan for
            //require('') dependecies.
            if (namedModule && !namedFuncStart) {
              return match;
            }

            //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 && (!namedModule || namedModule === moduleName)) {
              layer.modulesWithNames[moduleName] = true;
            }

            var deps = null,
              finalName;

            //Look for CommonJS require calls inside the function if this is
            //an anonymous define call that just has a function registered.
            //Also look if a named define function but has a factory function
            //as the second arg that should be scanned for dependencies.
            if (suffix.indexOf('f') !== -1 || (namedModule)) {
              deps = parse.getAnonDeps(path, contents);

              if (deps.length) {
                deps = deps.map(function (dep) {
                  return "'" + dep + "'";
                });
              } else {
                deps = [];
              }
            }

            finalName = namedModule || moduleName || '';
            if (finalName) {
              finalName = "'" + (namedModule || moduleName) + "',";
            }

            return start + namespace + "define(" + finalName +
              (deps ? ('[' + deps.toString() + '],') : '') +
              (namedModule ? namedFuncStart.replace(build.leadingCommaRegExp, '') : suffix);
          });

        };

        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);
        }
      };

      //Enable execution of this callback in a build setting.
      //Normally, once requirePatch is run, by default it will
      //not execute callbacks, unless this property is set on
      //the callback.
      runBuild.__requireJsBuild = true;

      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,
          requireLoad: requirejsVars.nodeLoad,
          requireExecCb: requirejsVars.nodeRequireExecCb
        });

        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)));