#

API Docs for: 3.10.3
Show: Inherited Protected Private Deprecated

# File: loader/js/loader.js

    /*jslint forin: true, maxlen: 350 */

    /**
     * Loader dynamically loads script and css files.  It includes the dependency
     * information for the version of the library in use, and will automatically pull in
     * dependencies for the modules requested. It can also load the
     * files from the Yahoo! CDN, and it can utilize the combo service provided on
     * this network to reduce the number of http connections required to download
     * YUI files.
     *
     * @module loader
     * @main loader
     * @submodule loader-base
     */

    var NOT_FOUND = {},
        NO_REQUIREMENTS = [],
        MAX_URL_LENGTH = 1024,
        GLOBAL_ENV = YUI.Env,
        GLOBAL_LOADED = GLOBAL_ENV._loaded,
        CSS = 'css',
        JS = 'js',
        INTL = 'intl',
        DEFAULT_SKIN = 'sam',
        VERSION = Y.version,
        ROOT_LANG = '',
        YObject = Y.Object,
        oeach = YObject.each,
        yArray = Y.Array,
        _queue = GLOBAL_ENV._loaderQueue,
        META = GLOBAL_ENV[VERSION],
        SKIN_PREFIX = 'skin-',
        L = Y.Lang,
        ON_PAGE = GLOBAL_ENV.mods,
        modulekey,
        _path = function(dir, file, type, nomin) {
            var path = dir + '/' + file;
            if (!nomin) {
                path += '-min';
            }
            path += '.' + (type || CSS);

            return path;
        };

        if (!YUI.Env._cssLoaded) {
            YUI.Env._cssLoaded = {};
        }

    /**
     * The component metadata is stored in Y.Env.meta.
     * Part of the loader module.
     * @property meta
     * @for YUI
     */
    Y.Env.meta = META;

    /**
     * Loader dynamically loads script and css files.  It includes the dependency
     * info for the version of the library in use, and will automatically pull in
     * dependencies for the modules requested. It can load the
     * files from the Yahoo! CDN, and it can utilize the combo service provided on
     * this network to reduce the number of http connections required to download
     * YUI files. You can also specify an external, custom combo service to host
     * your modules as well.

            var Y = YUI();
            var loader = new Y.Loader({
                filter: 'debug',
                base: '../../',
                root: 'build/',
                combine: true,
                require: ['node', 'dd', 'console']
            });
            var out = loader.resolve(true);

     * @constructor
     * @class Loader
     * @param {Object} config an optional set of configuration options.
     * @param {String} config.base The base dir which to fetch this module from
     * @param {String} config.comboBase The Combo service base path. Ex: `http://yui.yahooapis.com/combo?`
     * @param {String} config.root The root path to prepend to module names for the combo service. Ex: `2.5.2/build/`
     * @param {String|Object} config.filter A filter to apply to result urls. <a href="#property_filter">See filter property</a>
     * @param {Object} config.filters Per-component filter specification.  If specified for a given component, this overrides the filter config.
     * @param {Boolean} config.combine Use a combo service to reduce the number of http connections required to load your dependencies
     * @param {Boolean} [config.async=true] Fetch files in async
     * @param {Array} config.ignore: A list of modules that should never be dynamically loaded
     * @param {Array} config.force A list of modules that should always be loaded when required, even if already present on the page
     * @param {HTMLElement|String} config.insertBefore Node or id for a node that should be used as the insertion point for new nodes
     * @param {Object} config.jsAttributes Object literal containing attributes to add to script nodes
     * @param {Object} config.cssAttributes Object literal containing attributes to add to link nodes
     * @param {Number} config.timeout The number of milliseconds before a timeout occurs when dynamically loading nodes.  If not set, there is no timeout
     * @param {Object} config.context Execution context for all callbacks
     * @param {Function} config.onSuccess Callback for the 'success' event
     * @param {Function} config.onFailure Callback for the 'failure' event
     * @param {Function} config.onCSS Callback for the 'CSSComplete' event.  When loading YUI components with CSS the CSS is loaded first, then the script.  This provides a moment you can tie into to improve the presentation of the page while the script is loading.
     * @param {Function} config.onTimeout Callback for the 'timeout' event
     * @param {Function} config.onProgress Callback executed each time a script or css file is loaded
     * @param {Object} config.modules A list of module definitions.  See <a href="#method_addModule">Loader.addModule</a> for the supported module metadata
     * @param {Object} config.groups A list of group definitions.  Each group can contain specific definitions for `base`, `comboBase`, `combine`, and accepts a list of `modules`.
     * @param {String} config.2in3 The version of the YUI 2 in 3 wrapper to use.  The intrinsic support for YUI 2 modules in YUI 3 relies on versions of the YUI 2 components inside YUI 3 module wrappers.  These wrappers change over time to accomodate the issues that arise from running YUI 2 in a YUI 3 sandbox.
     * @param {String} config.yui2 When using the 2in3 project, you can select the version of YUI 2 to use.  Valid values are `2.2.2`, `2.3.1`, `2.4.1`, `2.5.2`, `2.6.0`, `2.7.0`, `2.8.0`, `2.8.1` and `2.9.0` [default] -- plus all versions of YUI 2 going forward.
     */
    Y.Loader = function(o) {

        var self = this;

        //Catch no config passed.
        o = o || {};

        modulekey = META.md5;

        /**
         * Internal callback to handle multiple internal insert() calls
         * so that css is inserted prior to js
         * @property _internalCallback
         * @private
         */
        // self._internalCallback = null;

        /**
         * Callback that will be executed when the loader is finished
         * with an insert
         * @method onSuccess
         * @type function
         */
        // self.onSuccess = null;

        /**
         * Callback that will be executed if there is a failure
         * @method onFailure
         * @type function
         */
        // self.onFailure = null;

        /**
         * Callback for the 'CSSComplete' event.  When loading YUI components
         * with CSS the CSS is loaded first, then the script.  This provides
         * a moment you can tie into to improve the presentation of the page
         * while the script is loading.
         * @method onCSS
         * @type function
         */
        // self.onCSS = null;

        /**
         * Callback executed each time a script or css file is loaded
         * @method onProgress
         * @type function
         */
        // self.onProgress = null;

        /**
         * Callback that will be executed if a timeout occurs
         * @method onTimeout
         * @type function
         */
        // self.onTimeout = null;

        /**
         * The execution context for all callbacks
         * @property context
         * @default {YUI} the YUI instance
         */
        self.context = Y;

        /**
         * Data that is passed to all callbacks
         * @property data
         */
        // self.data = null;

        /**
         * Node reference or id where new nodes should be inserted before
         * @property insertBefore
         * @type string|HTMLElement
         */
        // self.insertBefore = null;

        /**
         * The charset attribute for inserted nodes
         * @property charset
         * @type string
         * @deprecated , use cssAttributes or jsAttributes.
         */
        // self.charset = null;

        /**
         * An object literal containing attributes to add to link nodes
         * @property cssAttributes
         * @type object
         */
        // self.cssAttributes = null;

        /**
         * An object literal containing attributes to add to script nodes
         * @property jsAttributes
         * @type object
         */
        // self.jsAttributes = null;

        /**
         * The base directory.
         * @property base
         * @type string
         * @default http://yui.yahooapis.com/[YUI VERSION]/build/
         */
        self.base = Y.Env.meta.base + Y.Env.meta.root;

        /**
         * Base path for the combo service
         * @property comboBase
         * @type string
         * @default http://yui.yahooapis.com/combo?
         */
        self.comboBase = Y.Env.meta.comboBase;

        /*
         * Base path for language packs.
         */
        // self.langBase = Y.Env.meta.langBase;
        // self.lang = "";

        /**
         * If configured, the loader will attempt to use the combo
         * service for YUI resources and configured external resources.
         * @property combine
         * @type boolean
         * @default true if a base dir isn't in the config
         */
        self.combine = o.base &&
            (o.base.indexOf(self.comboBase.substr(0, 20)) > -1);

        /**
        * The default seperator to use between files in a combo URL
        * @property comboSep
        * @type {String}
        * @default Ampersand
        */
        self.comboSep = '&';
        /**
         * Max url length for combo urls.  The default is 1024. This is the URL
         * limit for the Yahoo! hosted combo servers.  If consuming
         * a different combo service that has a different URL limit
         * it is possible to override this default by supplying
         * the maxURLLength config option.  The config option will
         * only take effect if lower than the default.
         *
         * @property maxURLLength
         * @type int
         */
        self.maxURLLength = MAX_URL_LENGTH;

        /**
         * Ignore modules registered on the YUI global
         * @property ignoreRegistered
         * @default false
         */
        self.ignoreRegistered = o.ignoreRegistered;

        /**
         * Root path to prepend to module path for the combo
         * service
         * @property root
         * @type string
         * @default [YUI VERSION]/build/
         */
        self.root = Y.Env.meta.root;

        /**
         * Timeout value in milliseconds.  If set, self value will be used by
         * the get utility.  the timeout event will fire if
         * a timeout occurs.
         * @property timeout
         * @type int
         */
        self.timeout = 0;

        /**
         * A list of modules that should not be loaded, even if
         * they turn up in the dependency tree
         * @property ignore
         * @type string[]
         */
        // self.ignore = null;

        /**
         * A list of modules that should always be loaded, even
         * if they have already been inserted into the page.
         * @property force
         * @type string[]
         */
        // self.force = null;

        self.forceMap = {};

        /**
         * Should we allow rollups
         * @property allowRollup
         * @type boolean
         * @default false
         */
        self.allowRollup = false;

        /**
         * A filter to apply to result urls.  This filter will modify the default
         * path for all modules.  The default path for the YUI library is the
         * minified version of the files (e.g., event-min.js).  The filter property
         * can be a predefined filter or a custom filter.  The valid predefined
         * filters are:
         * <dl>
         *  <dt>DEBUG</dt>
         *  <dd>Selects the debug versions of the library (e.g., event-debug.js).
         *      This option will automatically include the Logger widget</dd>
         *  <dt>RAW</dt>
         *  <dd>Selects the non-minified version of the library (e.g., event.js).
         *  </dd>
         * </dl>
         * You can also define a custom filter, which must be an object literal
         * containing a search expression and a replace string:
         *
         *      myFilter: {
         *          'searchExp': "-min\\.js",
         *          'replaceStr': "-debug.js"
         *      }
         *
         * @property filter
         * @type string| {searchExp: string, replaceStr: string}
         */
        // self.filter = null;

        /**
         * per-component filter specification.  If specified for a given
         * component, this overrides the filter config.
         * @property filters
         * @type object
         */
        self.filters = {};

        /**
         * The list of requested modules
         * @property required
         * @type {string: boolean}
         */
        self.required = {};

        /**
         * If a module name is predefined when requested, it is checked againsts
         * the patterns provided in this property.  If there is a match, the
         * module is added with the default configuration.
         *
         * At the moment only supporting module prefixes, but anticipate
         * supporting at least regular expressions.
         * @property patterns
         * @type Object
         */
        // self.patterns = Y.merge(Y.Env.meta.patterns);
        self.patterns = {};

        /**
         * The library metadata
         * @property moduleInfo
         */
        // self.moduleInfo = Y.merge(Y.Env.meta.moduleInfo);
        self.moduleInfo = {};

        self.groups = Y.merge(Y.Env.meta.groups);

        /**
         * Provides the information used to skin the skinnable components.
         * The following skin definition would result in 'skin1' and 'skin2'
         * being loaded for calendar (if calendar was requested), and
         * 'sam' for all other skinnable components:
         *
         *      skin: {
         *          // The default skin, which is automatically applied if not
         *          // overriden by a component-specific skin definition.
         *          // Change this in to apply a different skin globally
         *          defaultSkin: 'sam',
         *
         *          // This is combined with the loader base property to get
         *          // the default root directory for a skin. ex:
         *          // http://yui.yahooapis.com/2.3.0/build/assets/skins/sam/
         *          base: 'assets/skins/',
         *
         *          // Any component-specific overrides can be specified here,
         *          // making it possible to load different skins for different
         *          // components.  It is possible to load more than one skin
         *          // for a given component as well.
         *          overrides: {
         *              calendar: ['skin1', 'skin2']
         *          }
         *      }
         * @property skin
         * @type {Object}
         */
        self.skin = Y.merge(Y.Env.meta.skin);

        /*
         * Map of conditional modules
         * @since 3.2.0
         */
        self.conditions = {};

        // map of modules with a hash of modules that meet the requirement
        // self.provides = {};

        self.config = o;
        self._internal = true;

        self._populateCache();

        /**
         * Set when beginning to compute the dependency tree.
         * Composed of what YUI reports to be loaded combined
         * with what has been loaded by any instance on the page
         * with the version number specified in the metadata.
         * @property loaded
         * @type {string: boolean}
         */
        self.loaded = GLOBAL_LOADED[VERSION];

        /**
        * Should Loader fetch scripts in `async`, defaults to `true`
        * @property async
        */

        self.async = true;

        self._inspectPage();

        self._internal = false;

        self._config(o);

        self.forceMap = (self.force) ? Y.Array.hash(self.force) : {};

        self.testresults = null;

        if (Y.config.tests) {
            self.testresults = Y.config.tests;
        }

        /**
         * List of rollup files found in the library metadata
         * @property rollups
         */
        // self.rollups = null;

        /**
         * Whether or not to load optional dependencies for
         * the requested modules
         * @property loadOptional
         * @type boolean
         * @default false
         */
        // self.loadOptional = false;

        /**
         * All of the derived dependencies in sorted order, which
         * will be populated when either calculate() or insert()
         * is called
         * @property sorted
         * @type string[]
         */
        self.sorted = [];

        /*
         * A list of modules to attach to the YUI instance when complete.
         * If not supplied, the sorted list of dependencies are applied.
         * @property attaching
         */
        // self.attaching = null;

        /**
         * Flag to indicate the dependency tree needs to be recomputed
         * if insert is called again.
         * @property dirty
         * @type boolean
         * @default true
         */
        self.dirty = true;

        /**
         * List of modules inserted by the utility
         * @property inserted
         * @type {string: boolean}
         */
        self.inserted = {};

        /**
         * List of skipped modules during insert() because the module
         * was not defined
         * @property skipped
         */
        self.skipped = {};

        // Y.on('yui:load', self.loadNext, self);

        self.tested = {};

        /*
         * Cached sorted calculate results
         * @property results
         * @since 3.2.0
         */
        //self.results = {};

        if (self.ignoreRegistered) {
            //Clear inpage already processed modules.
            self._resetModules();
        }

    };

    Y.Loader.prototype = {
        /**
        * Checks the cache for modules and conditions, if they do not exist
        * process the default metadata and populate the local moduleInfo hash.
        * @method _populateCache
        * @private
        */
        _populateCache: function() {
            var self = this,
                defaults = META.modules,
                cache = GLOBAL_ENV._renderedMods,
                i;

            if (cache && !self.ignoreRegistered) {
                for (i in cache) {
                    if (cache.hasOwnProperty(i)) {
                        self.moduleInfo[i] = Y.merge(cache[i]);
                    }
                }

                cache = GLOBAL_ENV._conditions;
                for (i in cache) {
                    if (cache.hasOwnProperty(i)) {
                        self.conditions[i] = Y.merge(cache[i]);
                    }
                }

            } else {
                for (i in defaults) {
                    if (defaults.hasOwnProperty(i)) {
                        self.addModule(defaults[i], i);
                    }
                }
            }

        },
        /**
        * Reset modules in the module cache to a pre-processed state so additional
        * computations with a different skin or language will work as expected.
        * @method _resetModules
        * @private
        */
        _resetModules: function() {
            var self = this, i, o,
                mod, name, details;
            for (i in self.moduleInfo) {
                if (self.moduleInfo.hasOwnProperty(i)) {
                    mod = self.moduleInfo[i];
                    name = mod.name;
                    details  = (YUI.Env.mods[name] ? YUI.Env.mods[name].details : null);

                    if (details) {
                        self.moduleInfo[name]._reset = true;
                        self.moduleInfo[name].requires = details.requires || [];
                        self.moduleInfo[name].optional = details.optional || [];
                        self.moduleInfo[name].supersedes = details.supercedes || [];
                    }

                    if (mod.defaults) {
                        for (o in mod.defaults) {
                            if (mod.defaults.hasOwnProperty(o)) {
                                if (mod[o]) {
                                    mod[o] = mod.defaults[o];
                                }
                            }
                        }
                    }
                    delete mod.langCache;
                    delete mod.skinCache;
                    if (mod.skinnable) {
                        self._addSkin(self.skin.defaultSkin, mod.name);
                    }
                }
            }
        },
        /**
        Regex that matches a CSS URL. Used to guess the file type when it's not
        specified.

        @property REGEX_CSS
        @type RegExp
        @final
        @protected
        @since 3.5.0
        **/
        REGEX_CSS: /\.css(?:[?;].*)?$/i,

        /**
        * Default filters for raw and debug
        * @property FILTER_DEFS
        * @type Object
        * @final
        * @protected
        */
        FILTER_DEFS: {
            RAW: {
                'searchExp': '-min\\.js',
                'replaceStr': '.js'
            },
            DEBUG: {
                'searchExp': '-min\\.js',
                'replaceStr': '-debug.js'
            },
            COVERAGE: {
                'searchExp': '-min\\.js',
                'replaceStr': '-coverage.js'
            }
        },
        /*
        * Check the pages meta-data and cache the result.
        * @method _inspectPage
        * @private
        */
        _inspectPage: function() {
            var self = this, v, m, req, mr, i;

            //Inspect the page for CSS only modules and mark them as loaded.
            for (i in self.moduleInfo) {
                if (self.moduleInfo.hasOwnProperty(i)) {
                    v = self.moduleInfo[i];
                    if (v.type && v.type === CSS) {
                        if (self.isCSSLoaded(v.name)) {
                            Y.log('Found CSS module on page: ' + v.name, 'info', 'loader');
                            self.loaded[i] = true;
                        }
                    }
                }
            }
            for (i in ON_PAGE) {
                if (ON_PAGE.hasOwnProperty(i)) {
                    v = ON_PAGE[i];
                    if (v.details) {
                        m = self.moduleInfo[v.name];
                        req = v.details.requires;
                        mr = m && m.requires;

                       if (m) {
                           if (!m._inspected && req && mr.length !== req.length) {
                               // console.log('deleting ' + m.name);
                               delete m.expanded;
                           }
                       } else {
                           m = self.addModule(v.details, i);
                       }
                       m._inspected = true;
                   }
                }
            }
        },
        /*
        * returns true if b is not loaded, and is required directly or by means of modules it supersedes.
        * @private
        * @method _requires
        * @param {String} mod1 The first module to compare
        * @param {String} mod2 The second module to compare
        */
       _requires: function(mod1, mod2) {

            var i, rm, after_map, s,
                info = this.moduleInfo,
                m = info[mod1],
                other = info[mod2];

            if (!m || !other) {
                return false;
            }

            rm = m.expanded_map;
            after_map = m.after_map;

            // check if this module should be sorted after the other
            // do this first to short circut circular deps
            if (after_map && (mod2 in after_map)) {
                return true;
            }

            after_map = other.after_map;

            // and vis-versa
            if (after_map && (mod1 in after_map)) {
                return false;
            }

            // check if this module requires one the other supersedes
            s = info[mod2] && info[mod2].supersedes;
            if (s) {
                for (i = 0; i < s.length; i++) {
                    if (this._requires(mod1, s[i])) {
                        return true;
                    }
                }
            }

            s = info[mod1] && info[mod1].supersedes;
            if (s) {
                for (i = 0; i < s.length; i++) {
                    if (this._requires(mod2, s[i])) {
                        return false;
                    }
                }
            }

            // check if this module requires the other directly
            // if (r && yArray.indexOf(r, mod2) > -1) {
            if (rm && (mod2 in rm)) {
                return true;
            }

            // external css files should be sorted below yui css
            if (m.ext && m.type === CSS && !other.ext && other.type === CSS) {
                return true;
            }

            return false;
        },
        /**
        * Apply a new config to the Loader instance
        * @method _config
        * @private
        * @param {Object} o The new configuration
        */
        _config: function(o) {
            var i, j, val, a, f, group, groupName, self = this,
                mods = [], mod;
            // apply config values
            if (o) {
                for (i in o) {
                    if (o.hasOwnProperty(i)) {
                        val = o[i];
                        //TODO This should be a case
                        if (i === 'require') {
                            self.require(val);
                        } else if (i === 'skin') {
                            //If the config.skin is a string, format to the expected object
                            if (typeof val === 'string') {
                                self.skin.defaultSkin = o.skin;
                                val = {
                                    defaultSkin: val
                                };
                            }

                            Y.mix(self.skin, val, true);
                        } else if (i === 'groups') {
                            for (j in val) {
                                if (val.hasOwnProperty(j)) {
                                    // Y.log('group: ' + j);
                                    groupName = j;
                                    group = val[j];
                                    self.addGroup(group, groupName);
                                    if (group.aliases) {
                                        for (a in group.aliases) {
                                            if (group.aliases.hasOwnProperty(a)) {
                                                self.addAlias(group.aliases[a], a);
                                            }
                                        }
                                    }
                                }
                            }

                        } else if (i === 'modules') {
                            // add a hash of module definitions
                            for (j in val) {
                                if (val.hasOwnProperty(j)) {
                                    self.addModule(val[j], j);
                                }
                            }
                        } else if (i === 'aliases') {
                            for (j in val) {
                                if (val.hasOwnProperty(j)) {
                                    self.addAlias(val[j], j);
                                }
                            }
                        } else if (i === 'gallery') {
                            if (this.groups.gallery.update) {
                                this.groups.gallery.update(val, o);
                            }
                        } else if (i === 'yui2' || i === '2in3') {
                            if (this.groups.yui2.update) {
                                this.groups.yui2.update(o['2in3'], o.yui2, o);
                            }
                        } else {
                            self[i] = val;
                        }
                    }
                }
            }

            // fix filter
            f = self.filter;

            if (L.isString(f)) {
                f = f.toUpperCase();
                self.filterName = f;
                self.filter = self.FILTER_DEFS[f];
                if (f === 'DEBUG') {
                    self.require('yui-log', 'dump');
                }
            }

            if (self.filterName && self.coverage) {
                if (self.filterName === 'COVERAGE' && L.isArray(self.coverage) && self.coverage.length) {
                    for (i = 0; i < self.coverage.length; i++) {
                        mod = self.coverage[i];
                        if (self.moduleInfo[mod] && self.moduleInfo[mod].use) {
                            mods = [].concat(mods, self.moduleInfo[mod].use);
                        } else {
                            mods.push(mod);
                        }
                    }
                    self.filters = self.filters || {};
                    Y.Array.each(mods, function(mod) {
                        self.filters[mod] = self.FILTER_DEFS.COVERAGE;
                    });
                    self.filterName = 'RAW';
                    self.filter = self.FILTER_DEFS[self.filterName];
                }
            }

        },

        /**
         * Returns the skin module name for the specified skin name.  If a
         * module name is supplied, the returned skin module name is
         * specific to the module passed in.
         * @method formatSkin
         * @param {string} skin the name of the skin.
         * @param {string} mod optional: the name of a module to skin.
         * @return {string} the full skin module name.
         */
        formatSkin: function(skin, mod) {
            var s = SKIN_PREFIX + skin;
            if (mod) {
                s = s + '-' + mod;
            }

            return s;
        },

        /**
         * Adds the skin def to the module info
         * @method _addSkin
         * @param {string} skin the name of the skin.
         * @param {string} mod the name of the module.
         * @param {string} parent parent module if this is a skin of a
         * submodule or plugin.
         * @return {string} the module name for the skin.
         * @private
         */
        _addSkin: function(skin, mod, parent) {
            var mdef, pkg, name, nmod,
                info = this.moduleInfo,
                sinf = this.skin,
                ext = info[mod] && info[mod].ext;

            // Add a module definition for the module-specific skin css
            if (mod) {
                name = this.formatSkin(skin, mod);
                if (!info[name]) {
                    mdef = info[mod];
                    pkg = mdef.pkg || mod;
                    nmod = {
                        skin: true,
                        name: name,
                        group: mdef.group,
                        type: 'css',
                        after: sinf.after,
                        path: (parent || pkg) + '/' + sinf.base + skin +
                              '/' + mod + '.css',
                        ext: ext
                    };
                    if (mdef.base) {
                        nmod.base = mdef.base;
                    }
                    if (mdef.configFn) {
                        nmod.configFn = mdef.configFn;
                    }
                    this.addModule(nmod, name);

                    Y.log('Adding skin (' + name + '), ' + parent + ', ' + pkg + ', ' + info[name].path, 'info', 'loader');
                }
            }

            return name;
        },
        /**
        * Adds an alias module to the system
        * @method addAlias
        * @param {Array} use An array of modules that makes up this alias
        * @param {String} name The name of the alias
        * @example
        *       var loader = new Y.Loader({});
        *       loader.addAlias([ 'node', 'yql' ], 'davglass');
        *       loader.require(['davglass']);
        *       var out = loader.resolve(true);
        *
        *       //out.js will contain Node and YQL modules
        */
        addAlias: function(use, name) {
            YUI.Env.aliases[name] = use;
            this.addModule({
                name: name,
                use: use
            });
        },
        /**
         * Add a new module group
         * @method addGroup
         * @param {Object} config An object containing the group configuration data
         * @param {String} config.name required, the group name
         * @param {String} config.base The base directory for this module group
         * @param {String} config.root The root path to add to each combo resource path
         * @param {Boolean} config.combine Should the request be combined
         * @param {String} config.comboBase Combo service base path
         * @param {Object} config.modules The group of modules
         * @param {String} name the group name.
         * @example
         *      var loader = new Y.Loader({});
         *      loader.addGroup({
         *          name: 'davglass',
         *          combine: true,
         *          comboBase: '/combo?',
         *          root: '',
         *          modules: {
         *              //Module List here
         *          }
         *      }, 'davglass');
         */
        addGroup: function(o, name) {
            var mods = o.modules,
                self = this, i, v;

            name = name || o.name;
            o.name = name;
            self.groups[name] = o;

            if (o.patterns) {
                for (i in o.patterns) {
                    if (o.patterns.hasOwnProperty(i)) {
                        o.patterns[i].group = name;
                        self.patterns[i] = o.patterns[i];
                    }
                }
            }

            if (mods) {
                for (i in mods) {
                    if (mods.hasOwnProperty(i)) {
                        v = mods[i];
                        if (typeof v === 'string') {
                            v = { name: i, fullpath: v };
                        }
                        v.group = name;
                        self.addModule(v, i);
                    }
                }
            }
        },

        /**
         * Add a new module to the component metadata.
         * @method addModule
         * @param {Object} config An object containing the module data.
         * @param {String} config.name Required, the component name
         * @param {String} config.type Required, the component type (js or css)
         * @param {String} config.path Required, the path to the script from `base`
         * @param {Array} config.requires Array of modules required by this component
         * @param {Array} [config.optional] Array of optional modules for this component
         * @param {Array} [config.supersedes] Array of the modules this component replaces
         * @param {Array} [config.after] Array of modules the components which, if present, should be sorted above this one
         * @param {Object} [config.after_map] Faster alternative to 'after' -- supply a hash instead of an array
         * @param {Number} [config.rollup] The number of superseded modules required for automatic rollup
         * @param {String} [config.fullpath] If `fullpath` is specified, this is used instead of the configured `base + path`
         * @param {Boolean} [config.skinnable] Flag to determine if skin assets should automatically be pulled in
         * @param {Object} [config.submodules] Hash of submodules
         * @param {String} [config.group] The group the module belongs to -- this is set automatically when it is added as part of a group configuration.
         * @param {Array} [config.lang] Array of BCP 47 language tags of languages for which this module has localized resource bundles, e.g., `["en-GB", "zh-Hans-CN"]`
         * @param {Object} [config.condition] Specifies that the module should be loaded automatically if a condition is met. This is an object with up to four fields:
         * @param {String} [config.condition.trigger] The name of a module that can trigger the auto-load
         * @param {Function} [config.condition.test] A function that returns true when the module is to be loaded.
         * @param {String} [config.condition.ua] The UA name of <a href="UA.html">Y.UA</a> object that returns true when the module is to be loaded. e.g., `"ie"`, `"nodejs"`.
         * @param {String} [config.condition.when] Specifies the load order of the conditional module
         *  with regard to the position of the trigger module.
         *  This should be one of three values: `before`, `after`, or `instead`.  The default is `after`.
         * @param {Object} [config.testresults] A hash of test results from `Y.Features.all()`
         * @param {Function} [config.configFn] A function to exectute when configuring this module
         * @param {Object} config.configFn.mod The module config, modifying this object will modify it's config. Returning false will delete the module's config.
         * @param {String} [name] The module name, required if not in the module data.
         * @return {Object} the module definition or null if the object passed in did not provide all required attributes.
         */
        addModule: function(o, name) {
            name = name || o.name;

            if (typeof o === 'string') {
                o = { name: name, fullpath: o };
            }

            var subs, i, l, t, sup, s, smod, plugins, plug,
                j, langs, packName, supName, flatSup, flatLang, lang, ret,
                overrides, skinname, when, g, p,
                conditions = this.conditions, trigger;

            //Only merge this data if the temp flag is set
            //from an earlier pass from a pattern or else
            //an override module (YUI_config) can not be used to
            //replace a default module.
            if (this.moduleInfo[name] && this.moduleInfo[name].temp) {
                //This catches temp modules loaded via a pattern
                // The module will be added twice, once from the pattern and
                // Once from the actual add call, this ensures that properties
                // that were added to the module the first time around (group: gallery)
                // are also added the second time around too.
                o = Y.merge(this.moduleInfo[name], o);
            }

            o.name = name;

            if (!o || !o.name) {
                return null;
            }

            if (!o.type) {
                //Always assume it's javascript unless the CSS pattern is matched.
                o.type = JS;
                p = o.path || o.fullpath;
                if (p && this.REGEX_CSS.test(p)) {
                    Y.log('Auto determined module type as CSS', 'warn', 'loader');
                    o.type = CSS;
                }
            }

            if (!o.path && !o.fullpath) {
                o.path = _path(name, name, o.type);
            }
            o.supersedes = o.supersedes || o.use;

            o.ext = ('ext' in o) ? o.ext : (this._internal) ? false : true;

            // Handle submodule logic
            subs = o.submodules;

            this.moduleInfo[name] = o;

            o.requires = o.requires || [];

            /*
            Only allowing the cascade of requires information, since
            optional and supersedes are far more fine grained than
            a blanket requires is.
            */
            if (this.requires) {
                for (i = 0; i < this.requires.length; i++) {
                    o.requires.push(this.requires[i]);
                }
            }
            if (o.group && this.groups && this.groups[o.group]) {
                g = this.groups[o.group];
                if (g.requires) {
                    for (i = 0; i < g.requires.length; i++) {
                        o.requires.push(g.requires[i]);
                    }
                }
            }

            if (!o.defaults) {
                o.defaults = {
                    requires: o.requires ? [].concat(o.requires) : null,
                    supersedes: o.supersedes ? [].concat(o.supersedes) : null,
                    optional: o.optional ? [].concat(o.optional) : null
                };
            }

            if (o.skinnable && o.ext && o.temp) {
                skinname = this._addSkin(this.skin.defaultSkin, name);
                o.requires.unshift(skinname);
            }

            if (o.requires.length) {
                o.requires = this.filterRequires(o.requires) || [];
            }

            if (!o.langPack && o.lang) {
                langs = yArray(o.lang);
                for (j = 0; j < langs.length; j++) {
                    lang = langs[j];
                    packName = this.getLangPackName(lang, name);
                    smod = this.moduleInfo[packName];
                    if (!smod) {
                        smod = this._addLangPack(lang, o, packName);
                    }
                }
            }

            if (subs) {
                sup = o.supersedes || [];
                l = 0;

                for (i in subs) {
                    if (subs.hasOwnProperty(i)) {
                        s = subs[i];

                        s.path = s.path || _path(name, i, o.type);
                        s.pkg = name;
                        s.group = o.group;

                        if (s.supersedes) {
                            sup = sup.concat(s.supersedes);
                        }

                        smod = this.addModule(s, i);
                        sup.push(i);

                        if (smod.skinnable) {
                            o.skinnable = true;
                            overrides = this.skin.overrides;
                            if (overrides && overrides[i]) {
                                for (j = 0; j < overrides[i].length; j++) {
                                    skinname = this._addSkin(overrides[i][j],
                                             i, name);
                                    sup.push(skinname);
                                }
                            }
                            skinname = this._addSkin(this.skin.defaultSkin,
                                            i, name);
                            sup.push(skinname);
                        }

                        // looks like we are expected to work out the metadata
                        // for the parent module language packs from what is
                        // specified in the child modules.
                        if (s.lang && s.lang.length) {

                            langs = yArray(s.lang);
                            for (j = 0; j < langs.length; j++) {
                                lang = langs[j];
                                packName = this.getLangPackName(lang, name);
                                supName = this.getLangPackName(lang, i);
                                smod = this.moduleInfo[packName];

                                if (!smod) {
                                    smod = this._addLangPack(lang, o, packName);
                                }

                                flatSup = flatSup || yArray.hash(smod.supersedes);

                                if (!(supName in flatSup)) {
                                    smod.supersedes.push(supName);
                                }

                                o.lang = o.lang || [];

                                flatLang = flatLang || yArray.hash(o.lang);

                                if (!(lang in flatLang)) {
                                    o.lang.push(lang);
                                }

    // Y.log('pack ' + packName + ' should supersede ' + supName);
    // Add rollup file, need to add to supersedes list too

                                // default packages
                                packName = this.getLangPackName(ROOT_LANG, name);
                                supName = this.getLangPackName(ROOT_LANG, i);

                                smod = this.moduleInfo[packName];

                                if (!smod) {
                                    smod = this._addLangPack(lang, o, packName);
                                }

                                if (!(supName in flatSup)) {
                                    smod.supersedes.push(supName);
                                }

    // Y.log('pack ' + packName + ' should supersede ' + supName);
    // Add rollup file, need to add to supersedes list too

                            }
                        }

                        l++;
                    }
                }
                //o.supersedes = YObject.keys(yArray.hash(sup));
                o.supersedes = yArray.dedupe(sup);
                if (this.allowRollup) {
                    o.rollup = (l < 4) ? l : Math.min(l - 1, 4);
                }
            }

            plugins = o.plugins;
            if (plugins) {
                for (i in plugins) {
                    if (plugins.hasOwnProperty(i)) {
                        plug = plugins[i];
                        plug.pkg = name;
                        plug.path = plug.path || _path(name, i, o.type);
                        plug.requires = plug.requires || [];
                        plug.group = o.group;
                        this.addModule(plug, i);
                        if (o.skinnable) {
                            this._addSkin(this.skin.defaultSkin, i, name);
                        }

                    }
                }
            }

            if (o.condition) {
                t = o.condition.trigger;
                if (YUI.Env.aliases[t]) {
                    t = YUI.Env.aliases[t];
                }
                if (!Y.Lang.isArray(t)) {
                    t = [t];
                }

                for (i = 0; i < t.length; i++) {
                    trigger = t[i];
                    when = o.condition.when;
                    conditions[trigger] = conditions[trigger] || {};
                    conditions[trigger][name] = o.condition;
                    // the 'when' attribute can be 'before', 'after', or 'instead'
                    // the default is after.
                    if (when && when !== 'after') {
                        if (when === 'instead') { // replace the trigger
                            o.supersedes = o.supersedes || [];
                            o.supersedes.push(trigger);
                        }
                        // before the trigger
                            // the trigger requires the conditional mod,
                            // so it should appear before the conditional
                            // mod if we do not intersede.
                    } else { // after the trigger
                        o.after = o.after || [];
                        o.after.push(trigger);
                    }
                }
            }

            if (o.supersedes) {
                o.supersedes = this.filterRequires(o.supersedes);
            }

            if (o.after) {
                o.after = this.filterRequires(o.after);
                o.after_map = yArray.hash(o.after);
            }

            // this.dirty = true;

            if (o.configFn) {
                ret = o.configFn(o);
                if (ret === false) {
                    Y.log('Config function returned false for ' + name + ', skipping.', 'info', 'loader');
                    delete this.moduleInfo[name];
                    delete GLOBAL_ENV._renderedMods[name];
                    o = null;
                }
            }
            //Add to global cache
            if (o) {
                if (!GLOBAL_ENV._renderedMods) {
                    GLOBAL_ENV._renderedMods = {};
                }
                GLOBAL_ENV._renderedMods[name] = Y.mix(GLOBAL_ENV._renderedMods[name] || {}, o);
                GLOBAL_ENV._conditions = conditions;
            }

            return o;
        },

        /**
         * Add a requirement for one or more module
         * @method require
         * @param {string[] | string*} what the modules to load.
         */
        require: function(what) {
            var a = (typeof what === 'string') ? yArray(arguments) : what;
            this.dirty = true;
            this.required = Y.merge(this.required, yArray.hash(this.filterRequires(a)));

            this._explodeRollups();
        },
        /**
        * Grab all the items that were asked for, check to see if the Loader
        * meta-data contains a "use" array. If it doesm remove the asked item and replace it with
        * the content of the "use".
        * This will make asking for: "dd"
        * Actually ask for: "dd-ddm-base,dd-ddm,dd-ddm-drop,dd-drag,dd-proxy,dd-constrain,dd-drop,dd-scroll,dd-drop-plugin"
        * @private
        * @method _explodeRollups
        */
        _explodeRollups: function() {
            var self = this, m, m2, i, a, v, len, len2,
            r = self.required;

            if (!self.allowRollup) {
                for (i in r) {
                    if (r.hasOwnProperty(i)) {
                        m = self.getModule(i);
                        if (m && m.use) {
                            len = m.use.length;
                            for (a = 0; a < len; a++) {
                                m2 = self.getModule(m.use[a]);
                                if (m2 && m2.use) {
                                    len2 = m2.use.length;
                                    for (v = 0; v < len2; v++) {
                                        r[m2.use[v]] = true;
                                    }
                                } else {
                                    r[m.use[a]] = true;
                                }
                            }
                        }
                    }
                }
                self.required = r;
            }

        },
        /**
        * Explodes the required array to remove aliases and replace them with real modules
        * @method filterRequires
        * @param {Array} r The original requires array
        * @return {Array} The new array of exploded requirements
        */
        filterRequires: function(r) {
            if (r) {
                if (!Y.Lang.isArray(r)) {
                    r = [r];
                }
                r = Y.Array(r);
                var c = [], i, mod, o, m;

                for (i = 0; i < r.length; i++) {
                    mod = this.getModule(r[i]);
                    if (mod && mod.use) {
                        for (o = 0; o < mod.use.length; o++) {
                            //Must walk the other modules in case a module is a rollup of rollups (datatype)
                            m = this.getModule(mod.use[o]);
                            if (m && m.use && (m.name !== mod.name)) {
                                c = Y.Array.dedupe([].concat(c, this.filterRequires(m.use)));
                            } else {
                                c.push(mod.use[o]);
                            }
                        }
                    } else {
                        c.push(r[i]);
                    }
                }
                r = c;
            }
            return r;
        },
        /**
         * Returns an object containing properties for all modules required
         * in order to load the requested module
         * @method getRequires
         * @param {object}  mod The module definition from moduleInfo.
         * @return {array} the expanded requirement list.
         */
        getRequires: function(mod) {

            if (!mod) {
                //console.log('returning no reqs for ' + mod.name);
                return NO_REQUIREMENTS;
            }

            if (mod._parsed) {
                //console.log('returning requires for ' + mod.name, mod.requires);
                return mod.expanded || NO_REQUIREMENTS;
            }

            //TODO add modue cache here out of scope..

            var i, m, j, add, packName, lang, testresults = this.testresults,
                name = mod.name, cond,
                adddef = ON_PAGE[name] && ON_PAGE[name].details,
                d, go, def,
                r, old_mod,
                o, skinmod, skindef, skinpar, skinname,
                intl = mod.lang || mod.intl,
                info = this.moduleInfo,
                ftests = Y.Features && Y.Features.tests.load,
                hash, reparse;

            // console.log(name);

            // pattern match leaves module stub that needs to be filled out
            if (mod.temp && adddef) {
                old_mod = mod;
                mod = this.addModule(adddef, name);
                mod.group = old_mod.group;
                mod.pkg = old_mod.pkg;
                delete mod.expanded;
            }

            // console.log('cache: ' + mod.langCache + ' == ' + this.lang);

            //If a skin or a lang is different, reparse..
            reparse = !((!this.lang || mod.langCache === this.lang) && (mod.skinCache === this.skin.defaultSkin));

            if (mod.expanded && !reparse) {
                //Y.log('Already expanded ' + name + ', ' + mod.expanded);
                return mod.expanded;
            }

            d = [];
            hash = {};
            r = this.filterRequires(mod.requires);
            if (mod.lang) {
                //If a module has a lang attribute, auto add the intl requirement.
                d.unshift('intl');
                r.unshift('intl');
                intl = true;
            }
            o = this.filterRequires(mod.optional);

            // Y.log("getRequires: " + name + " (dirty:" + this.dirty +
            // ", expanded:" + mod.expanded + ")");

            mod._parsed = true;
            mod.langCache = this.lang;
            mod.skinCache = this.skin.defaultSkin;

            for (i = 0; i < r.length; i++) {
                //Y.log(name + ' requiring ' + r[i], 'info', 'loader');
                if (!hash[r[i]]) {
                    d.push(r[i]);
                    hash[r[i]] = true;
                    m = this.getModule(r[i]);
                    if (m) {
                        add = this.getRequires(m);
                        intl = intl || (m.expanded_map &&
                            (INTL in m.expanded_map));
                        for (j = 0; j < add.length; j++) {
                            d.push(add[j]);
                        }
                    }
                }
            }

            // get the requirements from superseded modules, if any
            r = this.filterRequires(mod.supersedes);
            if (r) {
                for (i = 0; i < r.length; i++) {
                    if (!hash[r[i]]) {
                        // if this module has submodules, the requirements list is
                        // expanded to include the submodules.  This is so we can
                        // prevent dups when a submodule is already loaded and the
                        // parent is requested.
                        if (mod.submodules) {
                            d.push(r[i]);
                        }

                        hash[r[i]] = true;
                        m = this.getModule(r[i]);

                        if (m) {
                            add = this.getRequires(m);
                            intl = intl || (m.expanded_map &&
                                (INTL in m.expanded_map));
                            for (j = 0; j < add.length; j++) {
                                d.push(add[j]);
                            }
                        }
                    }
                }
            }

            if (o && this.loadOptional) {
                for (i = 0; i < o.length; i++) {
                    if (!hash[o[i]]) {
                        d.push(o[i]);
                        hash[o[i]] = true;
                        m = info[o[i]];
                        if (m) {
                            add = this.getRequires(m);
                            intl = intl || (m.expanded_map &&
                                (INTL in m.expanded_map));
                            for (j = 0; j < add.length; j++) {
                                d.push(add[j]);
                            }
                        }
                    }
                }
            }

            cond = this.conditions[name];

            if (cond) {
                //Set the module to not parsed since we have conditionals and this could change the dependency tree.
                mod._parsed = false;
                if (testresults && ftests) {
                    oeach(testresults, function(result, id) {
                        var condmod = ftests[id].name;
                        if (!hash[condmod] && ftests[id].trigger === name) {
                            if (result && ftests[id]) {
                                hash[condmod] = true;
                                d.push(condmod);
                            }
                        }
                    });
                } else {
                    for (i in cond) {
                        if (cond.hasOwnProperty(i)) {
                            if (!hash[i]) {
                                def = cond[i];
                                //first see if they've specfied a ua check
                                //then see if they've got a test fn & if it returns true
                                //otherwise just having a condition block is enough
                                go = def && ((!def.ua && !def.test) || (def.ua && Y.UA[def.ua]) ||
                                            (def.test && def.test(Y, r)));

                                if (go) {
                                    hash[i] = true;
                                    d.push(i);
                                    m = this.getModule(i);
                                    if (m) {
                                        add = this.getRequires(m);
                                        for (j = 0; j < add.length; j++) {
                                            d.push(add[j]);
                                        }

                                    }
                                }
                            }
                        }
                    }
                }
            }

            // Create skin modules
            if (mod.skinnable) {
                skindef = this.skin.overrides;
                for (i in YUI.Env.aliases) {
                    if (YUI.Env.aliases.hasOwnProperty(i)) {
                        if (Y.Array.indexOf(YUI.Env.aliases[i], name) > -1) {
                            skinpar = i;
                        }
                    }
                }
                if (skindef && (skindef[name] || (skinpar && skindef[skinpar]))) {
                    skinname = name;
                    if (skindef[skinpar]) {
                        skinname = skinpar;
                    }
                    for (i = 0; i < skindef[skinname].length; i++) {
                        skinmod = this._addSkin(skindef[skinname][i], name);
                        if (!this.isCSSLoaded(skinmod, this._boot)) {
                            d.push(skinmod);
                        }
                    }
                } else {
                    skinmod = this._addSkin(this.skin.defaultSkin, name);
                    if (!this.isCSSLoaded(skinmod, this._boot)) {
                        d.push(skinmod);
                    }
                }
            }

            mod._parsed = false;

            if (intl) {

                if (mod.lang && !mod.langPack && Y.Intl) {
                    lang = Y.Intl.lookupBestLang(this.lang || ROOT_LANG, mod.lang);
                    //Y.log('Best lang: ' + lang + ', this.lang: ' + this.lang + ', mod.lang: ' + mod.lang);
                    packName = this.getLangPackName(lang, name);
                    if (packName) {
                        d.unshift(packName);
                    }
                }
                d.unshift(INTL);
            }

            mod.expanded_map = yArray.hash(d);

            mod.expanded = YObject.keys(mod.expanded_map);

            return mod.expanded;
        },
        /**
        * Check to see if named css module is already loaded on the page
        * @method isCSSLoaded
        * @param {String} name The name of the css file
        * @return Boolean
        */
        isCSSLoaded: function(name, skip) {
            //TODO - Make this call a batching call with name being an array
            if (!name || !YUI.Env.cssStampEl || (!skip && this.ignoreRegistered)) {
                Y.log('isCSSLoaded was skipped for ' + name, 'warn', 'loader');
                return false;
            }
            var el = YUI.Env.cssStampEl,
                ret = false,
                mod = YUI.Env._cssLoaded[name],
                style = el.currentStyle; //IE

            if (mod !== undefined) {
                //Y.log('isCSSLoaded was cached for ' + name, 'warn', 'loader');
                return mod;
            }

            //Add the classname to the element
            el.className = name;

            if (!style) {
                style = Y.config.doc.defaultView.getComputedStyle(el, null);
            }

            if (style && style.display === 'none') {
                ret = true;
            }

            Y.log('Has Skin? ' + name + ' : ' + ret, 'info', 'loader');

            el.className = ''; //Reset the classname to ''

            YUI.Env._cssLoaded[name] = ret;

            return ret;
        },

        /**
         * Returns a hash of module names the supplied module satisfies.
         * @method getProvides
         * @param {string} name The name of the module.
         * @return {object} what this module provides.
         */
        getProvides: function(name) {
            var m = this.getModule(name), o, s;
                // supmap = this.provides;

            if (!m) {
                return NOT_FOUND;
            }

            if (m && !m.provides) {
                o = {};
                s = m.supersedes;

                if (s) {
                    yArray.each(s, function(v) {
                        Y.mix(o, this.getProvides(v));
                    }, this);
                }

                o[name] = true;
                m.provides = o;

            }

            return m.provides;
        },

        /**
         * Calculates the dependency tree, the result is stored in the sorted
         * property.
         * @method calculate
         * @param {object} o optional options object.
         * @param {string} type optional argument to prune modules.
         */
        calculate: function(o, type) {
            if (o || type || this.dirty) {

                if (o) {
                    this._config(o);
                }

                if (!this._init) {
                    this._setup();
                }

                this._explode();

                if (this.allowRollup) {
                    this._rollup();
                } else {
                    this._explodeRollups();
                }
                this._reduce();
                this._sort();
            }
        },
        /**
        * Creates a "psuedo" package for languages provided in the lang array
        * @method _addLangPack
        * @private
        * @param {String} lang The language to create
        * @param {Object} m The module definition to create the language pack around
        * @param {String} packName The name of the package (e.g: lang/datatype-date-en-US)
        * @return {Object} The module definition
        */
        _addLangPack: function(lang, m, packName) {
            var name = m.name,
                packPath, conf,
                existing = this.moduleInfo[packName];

            if (!existing) {

                packPath = _path((m.pkg || name), packName, JS, true);

                conf = {
                    path: packPath,
                    intl: true,
                    langPack: true,
                    ext: m.ext,
                    group: m.group,
                    supersedes: []
                };
                if (m.root) {
                    conf.root = m.root;
                }
                if (m.base) {
                    conf.base = m.base;
                }

                if (m.configFn) {
                    conf.configFn = m.configFn;
                }

                this.addModule(conf, packName);

                if (lang) {
                    Y.Env.lang = Y.Env.lang || {};
                    Y.Env.lang[lang] = Y.Env.lang[lang] || {};
                    Y.Env.lang[lang][name] = true;
                }
            }

            return this.moduleInfo[packName];
        },

        /**
         * Investigates the current YUI configuration on the page.  By default,
         * modules already detected will not be loaded again unless a force
         * option is encountered.  Called by calculate()
         * @method _setup
         * @private
         */
        _setup: function() {
            var info = this.moduleInfo, name, i, j, m, l,
                packName;

            for (name in info) {
                if (info.hasOwnProperty(name)) {
                    m = info[name];
                    if (m) {

                        // remove dups
                        //m.requires = YObject.keys(yArray.hash(m.requires));
                        m.requires = yArray.dedupe(m.requires);

                        // Create lang pack modules
                        //if (m.lang && m.lang.length) {
                        if (m.lang) {
                            // Setup root package if the module has lang defined,
                            // it needs to provide a root language pack
                            packName = this.getLangPackName(ROOT_LANG, name);
                            this._addLangPack(null, m, packName);
                        }

                    }
                }
            }

            //l = Y.merge(this.inserted);
            l = {};

            // available modules
            if (!this.ignoreRegistered) {
                Y.mix(l, GLOBAL_ENV.mods);
            }

            // add the ignore list to the list of loaded packages
            if (this.ignore) {
                Y.mix(l, yArray.hash(this.ignore));
            }

            // expand the list to include superseded modules
            for (j in l) {
                if (l.hasOwnProperty(j)) {
                    Y.mix(l, this.getProvides(j));
                }
            }

            // remove modules on the force list from the loaded list
            if (this.force) {
                for (i = 0; i < this.force.length; i++) {
                    if (this.force[i] in l) {
                        delete l[this.force[i]];
                    }
                }
            }

            Y.mix(this.loaded, l);

            this._init = true;
        },

        /**
         * Builds a module name for a language pack
         * @method getLangPackName
         * @param {string} lang the language code.
         * @param {string} mname the module to build it for.
         * @return {string} the language pack module name.
         */
        getLangPackName: function(lang, mname) {
            return ('lang/' + mname + ((lang) ? '_' + lang : ''));
        },
        /**
         * Inspects the required modules list looking for additional
         * dependencies.  Expands the required list to include all
         * required modules.  Called by calculate()
         * @method _explode
         * @private
         */
        _explode: function() {
            //TODO Move done out of scope
            var r = this.required, m, reqs, done = {},
                self = this, name, expound;

            // the setup phase is over, all modules have been created
            self.dirty = false;

            self._explodeRollups();
            r = self.required;

            for (name in r) {
                if (r.hasOwnProperty(name)) {
                    if (!done[name]) {
                        done[name] = true;
                        m = self.getModule(name);
                        if (m) {
                            expound = m.expound;

                            if (expound) {
                                r[expound] = self.getModule(expound);
                                reqs = self.getRequires(r[expound]);
                                Y.mix(r, yArray.hash(reqs));
                            }

                            reqs = self.getRequires(m);
                            Y.mix(r, yArray.hash(reqs));
                        }
                    }
                }
            }

            // Y.log('After explode: ' + YObject.keys(r));
        },
        /**
        * The default method used to test a module against a pattern
        * @method _patternTest
        * @private
        * @param {String} mname The module being tested
        * @param {String} pname The pattern to match
        */
        _patternTest: function(mname, pname) {
            return (mname.indexOf(pname) > -1);
        },
        /**
        * Get's the loader meta data for the requested module
        * @method getModule
        * @param {String} mname The module name to get
        * @return {Object} The module metadata
        */
        getModule: function(mname) {
            //TODO: Remove name check - it's a quick hack to fix pattern WIP
            if (!mname) {
                return null;
            }

            var p, found, pname,
                m = this.moduleInfo[mname],
                patterns = this.patterns;

            // check the patterns library to see if we should automatically add
            // the module with defaults
            if (!m || (m && m.ext)) {
               // Y.log('testing patterns ' + YObject.keys(patterns));
                for (pname in patterns) {
                    if (patterns.hasOwnProperty(pname)) {
                        // Y.log('testing pattern ' + i);
                        p = patterns[pname];

                        //There is no test method, create a default one that tests
                        // the pattern against the mod name
                        if (!p.test) {
                            p.test = this._patternTest;
                        }

                        if (p.test(mname, pname)) {
                            // use the metadata supplied for the pattern
                            // as the module definition.
                            found = p;
                            break;
                        }
                    }
                }
            }

            if (!m) {
                if (found) {
                    if (p.action) {
                        // Y.log('executing pattern action: ' + pname);
                        p.action.call(this, mname, pname);
                    } else {
    Y.log('Undefined module: ' + mname + ', matched a pattern: ' +
        pname, 'info', 'loader');
                        // ext true or false?
                        m = this.addModule(Y.merge(found), mname);
                        if (found.configFn) {
                            m.configFn = found.configFn;
                        }
                        m.temp = true;
                    }
                }
            } else {
                if (found && m && found.configFn && !m.configFn) {
                    m.configFn = found.configFn;
                    m.configFn(m);
                }
            }

            return m;
        },

        // impl in rollup submodule
        _rollup: function() { },

        /**
         * Remove superceded modules and loaded modules.  Called by
         * calculate() after we have the mega list of all dependencies
         * @method _reduce
         * @return {object} the reduced dependency hash.
         * @private
         */
        _reduce: function(r) {

            r = r || this.required;

            var i, j, s, m, type = this.loadType,
            ignore = this.ignore ? yArray.hash(this.ignore) : false;

            for (i in r) {
                if (r.hasOwnProperty(i)) {
                    m = this.getModule(i);
                    // remove if already loaded
                    if (((this.loaded[i] || ON_PAGE[i]) &&
                            !this.forceMap[i] && !this.ignoreRegistered) ||
                            (type && m && m.type !== type)) {
                        delete r[i];
                    }
                    if (ignore && ignore[i]) {
                        delete r[i];
                    }
                    // remove anything this module supersedes
                    s = m && m.supersedes;
                    if (s) {
                        for (j = 0; j < s.length; j++) {
                            if (s[j] in r) {
                                delete r[s[j]];
                            }
                        }
                    }
                }
            }

            return r;
        },
        /**
        * Handles the queue when a module has been loaded for all cases
        * @method _finish
        * @private
        * @param {String} msg The message from Loader
        * @param {Boolean} success A boolean denoting success or failure
        */
        _finish: function(msg, success) {
            Y.log('loader finishing: ' + msg + ', ' + Y.id + ', ' +
                this.data, 'info', 'loader');

            _queue.running = false;

            var onEnd = this.onEnd;
            if (onEnd) {
                onEnd.call(this.context, {
                    msg: msg,
                    data: this.data,
                    success: success
                });
            }
            this._continue();
        },
        /**
        * The default Loader onSuccess handler, calls this.onSuccess with a payload
        * @method _onSuccess
        * @private
        */
        _onSuccess: function() {
            var self = this, skipped = Y.merge(self.skipped), fn,
                failed = [], rreg = self.requireRegistration,
                success, msg, i, mod;

            for (i in skipped) {
                if (skipped.hasOwnProperty(i)) {
                    delete self.inserted[i];
                }
            }

            self.skipped = {};

            for (i in self.inserted) {
                if (self.inserted.hasOwnProperty(i)) {
                    mod = self.getModule(i);
                    if (mod && rreg && mod.type === JS && !(i in YUI.Env.mods)) {
                        failed.push(i);
                    } else {
                        Y.mix(self.loaded, self.getProvides(i));
                    }
                }
            }

            fn = self.onSuccess;
            msg = (failed.length) ? 'notregistered' : 'success';
            success = !(failed.length);
            if (fn) {
                fn.call(self.context, {
                    msg: msg,
                    data: self.data,
                    success: success,
                    failed: failed,
                    skipped: skipped
                });
            }
            self._finish(msg, success);
        },
        /**
        * The default Loader onProgress handler, calls this.onProgress with a payload
        * @method _onProgress
        * @private
        */
        _onProgress: function(e) {
            var self = this, i;
            //set the internal cache to what just came in.
            if (e.data && e.data.length) {
                for (i = 0; i < e.data.length; i++) {
                    e.data[i] = self.getModule(e.data[i].name);
                }
            }
            if (self.onProgress) {
                self.onProgress.call(self.context, {
                    name: e.url,
                    data: e.data
                });
            }
        },
        /**
        * The default Loader onFailure handler, calls this.onFailure with a payload
        * @method _onFailure
        * @private
        */
        _onFailure: function(o) {
            var f = this.onFailure, msg = [], i = 0, len = o.errors.length;

            for (i; i < len; i++) {
                msg.push(o.errors[i].error);
            }

            msg = msg.join(',');

            Y.log('load error: ' + msg + ', ' + Y.id, 'error', 'loader');

            if (f) {
                f.call(this.context, {
                    msg: msg,
                    data: this.data,
                    success: false
                });
            }

            this._finish(msg, false);

        },

        /**
        * The default Loader onTimeout handler, calls this.onTimeout with a payload
        * @method _onTimeout
        * @param {Get.Transaction} transaction The Transaction object from `Y.Get`
        * @private
        */
        _onTimeout: function(transaction) {
            Y.log('loader timeout: ' + Y.id, 'error', 'loader');
            var f = this.onTimeout;
            if (f) {
                f.call(this.context, {
                    msg: 'timeout',
                    data: this.data,
                    success: false,
                    transaction: transaction
                });
            }
        },

        /**
         * Sorts the dependency tree.  The last step of calculate()
         * @method _sort
         * @private
         */
        _sort: function() {

            // create an indexed list
            var s = YObject.keys(this.required),
                // loaded = this.loaded,
                //TODO Move this out of scope
                done = {},
                p = 0, l, a, b, j, k, moved, doneKey;

            // keep going until we make a pass without moving anything
            for (;;) {

                l = s.length;
                moved = false;

                // start the loop after items that are already sorted
                for (j = p; j < l; j++) {

                    // check the next module on the list to see if its
                    // dependencies have been met
                    a = s[j];

                    // check everything below current item and move if we
                    // find a requirement for the current item
                    for (k = j + 1; k < l; k++) {
                        doneKey = a + s[k];

                        if (!done[doneKey] && this._requires(a, s[k])) {

                            // extract the dependency so we can move it up
                            b = s.splice(k, 1);

                            // insert the dependency above the item that
                            // requires it
                            s.splice(j, 0, b[0]);

                            // only swap two dependencies once to short circut
                            // circular dependencies
                            done[doneKey] = true;

                            // keep working
                            moved = true;

                            break;
                        }
                    }

                    // jump out of loop if we moved something
                    if (moved) {
                        break;
                    // this item is sorted, move our pointer and keep going
                    } else {
                        p++;
                    }
                }

                // when we make it here and moved is false, we are
                // finished sorting
                if (!moved) {
                    break;
                }

            }

            this.sorted = s;
        },

        /**
        * Handles the actual insertion of script/link tags
        * @method _insert
        * @private
        * @param {Object} source The YUI instance the request came from
        * @param {Object} o The metadata to include
        * @param {String} type JS or CSS
        * @param {Boolean} [skipcalc=false] Do a Loader.calculate on the meta
        */
        _insert: function(source, o, type, skipcalc) {

            Y.log('private _insert() ' + (type || '') + ', ' + Y.id, "info", "loader");

            // restore the state at the time of the request
            if (source) {
                this._config(source);
            }

            // build the dependency list
            // don't include type so we can process CSS and script in
            // one pass when the type is not specified.

            var modules = this.resolve(!skipcalc),
                self = this, comp = 0, actions = 0,
                mods = {}, deps, complete;

            self._refetch = [];

            if (type) {
                //Filter out the opposite type and reset the array so the checks later work
                modules[((type === JS) ? CSS : JS)] = [];
            }
            if (!self.fetchCSS) {
                modules.css = [];
            }
            if (modules.js.length) {
                comp++;
            }
            if (modules.css.length) {
                comp++;
            }

            //console.log('Resolved Modules: ', modules);

            complete = function(d) {
                actions++;
                var errs = {}, i = 0, o = 0, u = '', fn,
                    modName, resMods;

                if (d && d.errors) {
                    for (i = 0; i < d.errors.length; i++) {
                        if (d.errors[i].request) {
                            u = d.errors[i].request.url;
                        } else {
                            u = d.errors[i];
                        }
                        errs[u] = u;
                    }
                }

                if (d && d.data && d.data.length && (d.type === 'success')) {
                    for (i = 0; i < d.data.length; i++) {
                        self.inserted[d.data[i].name] = true;
                        //If the external module has a skin or a lang, reprocess it
                        if (d.data[i].lang || d.data[i].skinnable) {
                            delete self.inserted[d.data[i].name];
                            self._refetch.push(d.data[i].name);
                        }
                    }
                }

                if (actions === comp) {
                    self._loading = null;
                    Y.log('Loader actions complete!', 'info', 'loader');
                    if (self._refetch.length) {
                        //Get the deps for the new meta-data and reprocess
                        Y.log('Found potential modules to refetch', 'info', 'loader');
                        for (i = 0; i < self._refetch.length; i++) {
                            deps = self.getRequires(self.getModule(self._refetch[i]));
                            for (o = 0; o < deps.length; o++) {
                                if (!self.inserted[deps[o]]) {
                                    //We wouldn't be to this point without the module being here
                                    mods[deps[o]] = deps[o];
                                }
                            }
                        }
                        mods = Y.Object.keys(mods);
                        if (mods.length) {
                            Y.log('Refetching modules with new meta-data', 'info', 'loader');
                            self.require(mods);
                            resMods = self.resolve(true);
                            if (resMods.cssMods.length) {
                                for (i=0; i <  resMods.cssMods.length; i++) {
                                    modName = resMods.cssMods[i].name;
                                    delete YUI.Env._cssLoaded[modName];
                                    if (self.isCSSLoaded(modName)) {
                                        self.inserted[modName] = true;
                                        delete self.required[modName];
                                    }
                                }
                                self.sorted = [];
                                self._sort();
                            }
                            d = null; //bail
                            self._insert(); //insert the new deps
                        }
                    }
                    if (d && d.fn) {
                        Y.log('Firing final Loader callback!', 'info', 'loader');
                        fn = d.fn;
                        delete d.fn;
                        fn.call(self, d);
                    }
                }
            };

            this._loading = true;

            if (!modules.js.length && !modules.css.length) {
                Y.log('No modules resolved..', 'warn', 'loader');
                actions = -1;
                complete({
                    fn: self._onSuccess
                });
                return;
            }

            if (modules.css.length) { //Load CSS first
                Y.log('Loading CSS modules', 'info', 'loader');
                Y.Get.css(modules.css, {
                    data: modules.cssMods,
                    attributes: self.cssAttributes,
                    insertBefore: self.insertBefore,
                    charset: self.charset,
                    timeout: self.timeout,
                    context: self,
                    onProgress: function(e) {
                        self._onProgress.call(self, e);
                    },
                    onTimeout: function(d) {
                        self._onTimeout.call(self, d);
                    },
                    onSuccess: function(d) {
                        d.type = 'success';
                        d.fn = self._onSuccess;
                        complete.call(self, d);
                    },
                    onFailure: function(d) {
                        d.type = 'failure';
                        d.fn = self._onFailure;
                        complete.call(self, d);
                    }
                });
            }

            if (modules.js.length) {
                Y.log('Loading JS modules', 'info', 'loader');
                Y.Get.js(modules.js, {
                    data: modules.jsMods,
                    insertBefore: self.insertBefore,
                    attributes: self.jsAttributes,
                    charset: self.charset,
                    timeout: self.timeout,
                    autopurge: false,
                    context: self,
                    async: self.async,
                    onProgress: function(e) {
                        self._onProgress.call(self, e);
                    },
                    onTimeout: function(d) {
                        self._onTimeout.call(self, d);
                    },
                    onSuccess: function(d) {
                        d.type = 'success';
                        d.fn = self._onSuccess;
                        complete.call(self, d);
                    },
                    onFailure: function(d) {
                        d.type = 'failure';
                        d.fn = self._onFailure;
                        complete.call(self, d);
                    }
                });
            }
        },
        /**
        * Once a loader operation is completely finished, process any additional queued items.
        * @method _continue
        * @private
        */
        _continue: function() {
            if (!(_queue.running) && _queue.size() > 0) {
                _queue.running = true;
                _queue.next()();
            }
        },

        /**
         * inserts the requested modules and their dependencies.
         * <code>type</code> can be "js" or "css".  Both script and
         * css are inserted if type is not provided.
         * @method insert
         * @param {object} o optional options object.
         * @param {string} type the type of dependency to insert.
         */
        insert: function(o, type, skipsort) {
             Y.log('public insert() ' + (type || '') + ', ' +
             Y.Object.keys(this.required), "info", "loader");
            var self = this, copy = Y.merge(this);
            delete copy.require;
            delete copy.dirty;
            _queue.add(function() {
                self._insert(copy, o, type, skipsort);
            });
            this._continue();
        },

        /**
         * Executed every time a module is loaded, and if we are in a load
         * cycle, we attempt to load the next script.  Public so that it
         * is possible to call this if using a method other than
         * Y.register to determine when scripts are fully loaded
         * @method loadNext
         * @deprecated
         * @param {string} mname optional the name of the module that has
         * been loaded (which is usually why it is time to load the next
         * one).
         */
        loadNext: function() {
            Y.log('loadNext was called..', 'error', 'loader');
            return;
        },

        /**
         * Apply filter defined for this instance to a url/path
         * @method _filter
         * @param {string} u the string to filter.
         * @param {string} name the name of the module, if we are processing
         * a single module as opposed to a combined url.
         * @return {string} the filtered string.
         * @private
         */
        _filter: function(u, name, group) {
            var f = this.filter,
                hasFilter = name && (name in this.filters),
                modFilter = hasFilter && this.filters[name],
                groupName = group || (this.moduleInfo[name] ? this.moduleInfo[name].group : null);

            if (groupName && this.groups[groupName] && this.groups[groupName].filter) {
                modFilter = this.groups[groupName].filter;
                hasFilter = true;
            }

            if (u) {
                if (hasFilter) {
                    f = (L.isString(modFilter)) ? this.FILTER_DEFS[modFilter.toUpperCase()] || null : modFilter;
                }
                if (f) {
                    u = u.replace(new RegExp(f.searchExp, 'g'), f.replaceStr);
                }
            }
            return u;
        },

        /**
         * Generates the full url for a module
         * @method _url
         * @param {string} path the path fragment.
         * @param {String} name The name of the module
         * @param {String} [base=self.base] The base url to use
         * @return {string} the full url.
         * @private
         */
        _url: function(path, name, base) {
            return this._filter((base || this.base || '') + path, name);
        },
        /**
        * Returns an Object hash of file arrays built from `loader.sorted` or from an arbitrary list of sorted modules.
        * @method resolve
        * @param {Boolean} [calc=false] Perform a loader.calculate() before anything else
        * @param {Array} [s=loader.sorted] An override for the loader.sorted array
        * @return {Object} Object hash (js and css) of two arrays of file lists
        * @example This method can be used as an off-line dep calculator
        *
        *        var Y = YUI();
        *        var loader = new Y.Loader({
        *            filter: 'debug',
        *            base: '../../',
        *            root: 'build/',
        *            combine: true,
        *            require: ['node', 'dd', 'console']
        *        });
        *        var out = loader.resolve(true);
        *
        */
        resolve: function(calc, s) {

            var len, i, m, url, group, groupName, j, frag,
                comboSource, comboSources, mods, comboBase,
                base, urls, u = [], tmpBase, baseLen, resCombos = {},
                self = this, comboSep, maxURLLength,
                inserted = (self.ignoreRegistered) ? {} : self.inserted,
                resolved = { js: [], jsMods: [], css: [], cssMods: [] },
                type = self.loadType || 'js', addSingle;

            if (self.skin.overrides || self.skin.defaultSkin !== DEFAULT_SKIN || self.ignoreRegistered) {
                self._resetModules();
            }

            if (calc) {
                self.calculate();
            }
            s = s || self.sorted;

            addSingle = function(m) {

                if (m) {
                    group = (m.group && self.groups[m.group]) || NOT_FOUND;

                    //Always assume it's async
                    if (group.async === false) {
                        m.async = group.async;
                    }

                    url = (m.fullpath) ? self._filter(m.fullpath, s[i]) :
                          self._url(m.path, s[i], group.base || m.base);

                    if (m.attributes || m.async === false) {
                        url = {
                            url: url,
                            async: m.async
                        };
                        if (m.attributes) {
                            url.attributes = m.attributes;
                        }
                    }
                    resolved[m.type].push(url);
                    resolved[m.type + 'Mods'].push(m);
                } else {
                    Y.log('Undefined Module', 'warn', 'loader');
                }

            };

            len = s.length;

            // the default combo base
            comboBase = self.comboBase;

            url = comboBase;

            comboSources = {};

            for (i = 0; i < len; i++) {
                comboSource = comboBase;
                m = self.getModule(s[i]);
                groupName = m && m.group;
                group = self.groups[groupName];
                if (groupName && group) {

                    if (!group.combine || m.fullpath) {
                        //This is not a combo module, skip it and load it singly later.
                        addSingle(m);
                        continue;
                    }
                    m.combine = true;
                    if (group.comboBase) {
                        comboSource = group.comboBase;
                    }

                    if ("root" in group && L.isValue(group.root)) {
                        m.root = group.root;
                    }
                    m.comboSep = group.comboSep || self.comboSep;
                    m.maxURLLength = group.maxURLLength || self.maxURLLength;
                } else {
                    if (!self.combine) {
                        //This is not a combo module, skip it and load it singly later.
                        addSingle(m);
                        continue;
                    }
                }

                comboSources[comboSource] = comboSources[comboSource] || [];
                comboSources[comboSource].push(m);
            }

            for (j in comboSources) {
                if (comboSources.hasOwnProperty(j)) {
                    resCombos[j] = resCombos[j] || { js: [], jsMods: [], css: [], cssMods: [] };
                    url = j;
                    mods = comboSources[j];
                    len = mods.length;

                    if (len) {
                        for (i = 0; i < len; i++) {
                            if (inserted[mods[i]]) {
                                continue;
                            }
                            m = mods[i];
                            // Do not try to combine non-yui JS unless combo def
                            // is found
                            if (m && (m.combine || !m.ext)) {
                                resCombos[j].comboSep = m.comboSep;
                                resCombos[j].group = m.group;
                                resCombos[j].maxURLLength = m.maxURLLength;
                                frag = ((L.isValue(m.root)) ? m.root : self.root) + (m.path || m.fullpath);
                                frag = self._filter(frag, m.name);
                                resCombos[j][m.type].push(frag);
                                resCombos[j][m.type + 'Mods'].push(m);
                            } else {
                                //Add them to the next process..
                                if (mods[i]) {
                                    addSingle(mods[i]);
                                }
                            }

                        }
                    }
                }
            }

            for (j in resCombos) {
                if (resCombos.hasOwnProperty(j)) {
                    base = j;
                    comboSep = resCombos[base].comboSep || self.comboSep;
                    maxURLLength = resCombos[base].maxURLLength || self.maxURLLength;
                    Y.log('Using maxURLLength of ' + maxURLLength, 'info', 'loader');
                    for (type in resCombos[base]) {
                        if (type === JS || type === CSS) {
                            urls = resCombos[base][type];
                            mods = resCombos[base][type + 'Mods'];
                            len = urls.length;
                            tmpBase = base + urls.join(comboSep);
                            baseLen = tmpBase.length;
                            if (maxURLLength <= base.length) {
                                Y.log('maxURLLength (' + maxURLLength + ') is lower than the comboBase length (' + base.length + '), resetting to default (' + MAX_URL_LENGTH + ')', 'error', 'loader');
                                maxURLLength = MAX_URL_LENGTH;
                            }

                            if (len) {
                                if (baseLen > maxURLLength) {
                                    Y.log('Exceeded maxURLLength (' + maxURLLength + ') for ' + type + ', splitting', 'info', 'loader');
                                    u = [];
                                    for (s = 0; s < len; s++) {
                                        u.push(urls[s]);
                                        tmpBase = base + u.join(comboSep);

                                        if (tmpBase.length > maxURLLength) {
                                            m = u.pop();
                                            tmpBase = base + u.join(comboSep);
                                            resolved[type].push(self._filter(tmpBase, null, resCombos[base].group));
                                            u = [];
                                            if (m) {
                                                u.push(m);
                                            }
                                        }
                                    }
                                    if (u.length) {
                                        tmpBase = base + u.join(comboSep);
                                        resolved[type].push(self._filter(tmpBase, null, resCombos[base].group));
                                    }
                                } else {
                                    resolved[type].push(self._filter(tmpBase, null, resCombos[base].group));
                                }
                            }
                            resolved[type + 'Mods'] = resolved[type + 'Mods'].concat(mods);
                        }
                    }
                }
            }

            resCombos = null;

            return resolved;
        },
        /**
        Shortcut to calculate, resolve and load all modules.

            var loader = new Y.Loader({
                ignoreRegistered: true,
                modules: {
                    mod: {
                        path: 'mod.js'
                    }
                },
                requires: [ 'mod' ]
            });
            loader.load(function() {
                console.log('All modules have loaded..');
            });

        @method load
        @param {Callback} cb Executed after all load operations are complete
        */
        load: function(cb) {
            if (!cb) {
                Y.log('No callback supplied to load()', 'error', 'loader');
                return;
            }
            var self = this,
                out = self.resolve(true);

            self.data = out;

            self.onEnd = function() {
                cb.apply(self.context || self, arguments);
            };

            self.insert();
        }
    };