Question:
Activates a frontend helper by registering for hooks and other
resources required by the frontend helper to work.

public function activate()
    {
        // register hooks
        $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_fe.php']['isOutputting'][__CLASS__] = UserGroupDetector::class . '->disableFrontendOutput';
        $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_fe.php']['tslib_fe-PostProc'][__CLASS__] = UserGroupDetector::class . '->disableCaching';
        $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_fe.php']['configArrayPostProc'][__CLASS__] = UserGroupDetector::class . '->deactivateTcaFrontendGroupEnableFields';
        $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_fe.php']['hook_checkEnableFields'][__CLASS__] = UserGroupDetector::class . '->checkEnableFields';

        $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_page.php']['getPage'][__CLASS__] = UserGroupDetector::class;
        $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_page.php']['getPageOverlay'][__CLASS__] = UserGroupDetector::class;

        $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_content.php']['postInit'][__CLASS__] = UserGroupDetector::class;
    }

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

define('lang', function () {
    var lang = {
        backSlashRegExp: /\\/g,
        ostring: Object.prototype.toString,

        isArray: Array.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;
        },

        /**
         * Simple function to mix in properties from source into target,
         * but only if target does not already have a property of the same name.
         */
        mixin: function (target, source, override) {
            //Use an empty object to avoid other bad JS code that modifies
            //Object.prototype.
            var empty = {}, prop;
            for (prop in source) {
                if (override || !(prop in target)) {
                    target[prop] = source[prop];
                }
            }
        },

        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/parse-js', ["require", "exports", "module"], 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 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",
        "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",
        "debugger",
        "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;
                while ((ch = peek()) != null) {
                        if (!backslash) {
                                if (ch == "\\") 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;
                        }
                }
                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"))
                                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[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) ];
                },
                "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$_";
        return function(num) {
                var ret = "";
                do {
                        ret = DIGITS.charAt(num % 54) + ret;
                        num = Math.floor(num / 54);
                } 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: 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 = statements.slice(i + 1);
                        var e = e_body.length == 1 ? e_body[0] : [ "block", e_body ];

                        var ret = statements.slice(0, i).concat([ [
                                fi[0],          // "if"
                                conditional,    // conditional
                                t,              // then
                                e               // else
                        ] ]);

                        return redo_if(ret);
                }

                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 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 {
                                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 = [ [ "if", negate(c), e ] ];
                        if (t[0] == "block") {
                                if (t[1]) ret = ret.concat(t[1]);
                        } else {
                                ret.push(t);
                        }
                        ret = walk([ "block", ret ]);
                }
                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 "\t": return "\\t";
                    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,
                "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 (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]));
                                        }
                                        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) {
                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 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"], 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");

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) {
        //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);
            }
        });

        return dependencies;
    };

    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;
    };

    /**
     * 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, strict: 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,
        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
     * @param {String} fileContents
     * @param {String} [cssImportIgnore]
     */
    function flattenCss(fileName, fileContents, cssImportIgnore) {
        //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) : "";

        //Make sure we have a delimited ignore list to make matching faster
        if (cssImportIgnore && cssImportIgnore.charAt(cssImportIgnore.length - 1) !== ",") {
            cssImportIgnore += ",";
        }

        return 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;

                //Make sure to flatten any nested imports.
                importContents = flattenCss(fullImportFileName, importContents);

                //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) : "";

                //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("/") + ")";
                });

                return importContents;
            } catch (e) {
                logger.trace(fileName + "\n  Cannot inline css import, skipping: " + importFileName);
                return fullMatch;
            }
        });
    }

    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} outFileName the name of the file to use for the
         * saved optimized content.
         * @param {Object} config the build config object.
         * @param {String} [moduleName] the module name to use for the file.
         * Used for plugin resource collection.
         * @param {Array} [pluginCollector] storage for any plugin resources
         * found.
         */
        jsFile: function (fileName, outFileName, config, moduleName, pluginCollector) {
            var parts = (config.optimize + "").split('.'),
                optimizerName = parts[0],
                keepLines = parts[1] === 'keepLines',
                licenseContents = '',
                fileContents, optFunc, match, comment;

            fileContents = file.readFile(fileName);

            //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]);
            }

            file.saveUtf8File(outFileName, 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),
                fileContents = flattenCss(fileName, originalFileContents, config.cssImportIgnore),
                startIndex, endIndex;

            //Do comment removal.
            try {
                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);
        },

        /**
         * 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) {
            if (config.optimizeCss.indexOf("standard") !== -1) {
                var i, fileName,
                    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);
                        optimize.cssFile(fileName, fileName, config);
                    }
                }
            }
        },

        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 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;
        };

        //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;

            //Adjust the URL if it was not transformed to use baseUrl.
            url = normalizeUrlWithBase(context, moduleName, url);

            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)) {
                //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);
                        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 regexp: false, plusplus: false, nomen: false, strict: false  */
/*global define: false, require: false */

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

        //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
                buildPaths = paths;
            } 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) {
            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, 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);
                optimize.jsFile(fileName, fileName, config, moduleName, 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) {
            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, originalBaseUrl;

        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") {
                    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(originalBaseUrl, config.appDir);
                        //Set up dir output baseUrl.
                        config.dirBaseUrl = build.makeAbsPath(originalBaseUrl, config.dir);
                    } else {
                        //The dir output baseUrl is same as regular baseUrl, both
                        //relative to the absFilePath.
                        config.baseUrl = build.makeAbsPath(config[prop], absFilePath);
                        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);
                } 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)) {
                    if (!target[prop]) {
                        target[prop] = {};
                    }
                    lang.mixin(target[prop], source[prop], true);
                } else {
                    target[prop] = source[prop];
                }
            }
        }
    }

    /**
     * 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;

        lang.mixin(config, buildBaseConfig);
        lang.mixin(config, cfg, true);

        //Make sure all paths are relative to current directory.
        absFilePath = file.absPath('.');
        build.makeAbsConfig(config, absFilePath);

        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);
            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);

        //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 (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.out && !config.cssIn) {
            //Just one file to optimize.

            //Set up dummy module layer to build.
            config.modules = [
                {
                    name: config.name,
                    out: config.out,
                    include: config.include,
                    exclude: config.exclude,
                    excludeShallow: config.excludeShallow
                }
            ];

            //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;
        }

        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);
                    };
                    writeApi.asModule = function (moduleName, input) {
                        fileContents += "\n" +
                                        addSemiColon(
                                            build.toTransport(anonDefRegExp, namespace, moduleName, path, input, layer));
                    };
                    builder.write(parts.prefix, parts.name, writeApi);
                }
            } else {
                currContents = file.readFile(path);

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

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

                //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;

            //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 = [];
                }
            }

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

    };

    return build;
});

    }

Instruction: Given a code description, retrieve the corresponding code.