Desire.js

desire.js

/*!
 * Desire.js
 * ---------
 *
 * Create the namespaces you so desire.
 *
 *     // Create a new module
 *     desire("APP.MyModule.MySubModule", function(){
 *         return {
 *             myProp   : "Your property value",
 *             myMethod : function( arg1, arg2 ){
 *                 // Your method contents
 *             }
 *         };
 *     });
 *
 *     // Create a single method
 *     desire("APP.mySingleMethod", function(){
 *         return function( arg1, arg2 ){
 *             // Your method contents
 *         };
 *     });
 *
 * Copyright (c) 2013, T. Zengerink
 * Licensed under MIT License
 * See: https://gist.github.com/raw/3151357/6806e68cb9cc0042b265f25be9bc25dd39f75267/LICENSE.md
 */
var desire = (function(){

  var nsDelimiter = ".";

  var extend = function( src, des ){
    for (var key in des) {
      src[key] = des[key];
    }   
    return src;
  };  

  var getModuleName = function( ns ){
    return ns.split(nsDelimiter).pop();
  };  

  var getNameSpace = function( ns ){
    var arr = ns.split(nsDelimiter);
    arr.pop();
    return factory(arr.join(nsDelimiter));
  };  

  var factory = function( ns ){
    var i = 0,
      s = ns.split(nsDelimiter),
      o = this;
    for (; i < s.length; i++) {
      o[s[i]] = o[s[i]] || {}; 
      o = o[s[i]];
    }   
    return o;
  };  

  return function( ns, fn ){
    var moduleName = getModuleName(ns),
      nameSpace = getNameSpace(ns),
      module = fn.call(this, nameSpace, moduleName);
    switch (typeof module) {
      case "object":
        nameSpace[moduleName] = extend((nameSpace[moduleName] || {}), module)
        break;
      default:
        nameSpace[moduleName] = module;
        break;
    }   
  }

})();