module=[
{'name':'jquery','src':'/js/lib/jquery-1.8.3.js'},
{'name':'swfobject','src':'/js/utils/swfobject.js'},
{'name':'fancybox','src':'/js/jquery/jquery.fancybox.js','require':['jquery']},
{'name':'uploadify','src':'/js/utils/uploadify.js','require':['swfobject']},
{'name':'jqform','src':'/js/jquery/jquery.form.js','require':['jquery']},
{'name':'register','src':'/js/page/reg.js','require':['jqform']},
{'name':'login','src':'/js/page/login.js','require':['fancybox','jqform']},
{'name':'upload','src':'/js/page/upload.js','require':['fancybox','jqform','uploadify']}
]

 /**
  * 不考慮循環(huán)依賴
  * @type {Function}
  */
 var loadModule = (function(){
     /**
      * 業(yè)務(wù)邏輯封裝
      * @type {{chainHead: {}, chainCurrent: {}, srcCache: {}, main: main, load: load, findModule: findModule}}
      */
     var logics = {
         chainHead: {},     //鏈表頭
         chainCurrent: {},  //鏈表當(dāng)前節(jié)點(diǎn)
         srcCache: {},      //module src 緩存
         /**
          * 對(duì)外接口
          * @param modules  配置對(duì)象
          * @param name  模塊名稱
          * @returns {Array} 依賴模塊列表，按照加載先后順序排列
          */
         main: function(modules, name){
             var nameArray = [],  //模塊名稱列表
                 srcArray = [],   //依賴模塊列表
                 nameStr = "",    //模塊名稱字符串集
                 repeatRegex = /(^| )([\w]+ ).*\2/,  //模塊名稱去重正則
                 i = 0;
             //粗略加載所有依賴模塊
             this.load(modules, name)
             //構(gòu)造模塊名稱字符串集
             this.chainCurrent = this.chainHead;
             while(this.chainCurrent.next){
                 nameArray.push(this.chainCurrent.name);
                 this.chainCurrent = this.chainCurrent.next;
             }
             nameStr = nameArray.join(" ") + " ";  //統(tǒng)一標(biāo)準(zhǔn)，末尾補(bǔ)一個(gè)空格
             //依賴模塊去重
             while(repeatRegex.exec(nameStr)){
                 nameStr = nameStr.replace(repeatRegex, function(g0, g1, g2){
                     return g0.substring(0, (g0.length - g2.length));
                 });
             }
             nameStr = nameStr.substring(0, (nameStr.length - 1));  //去掉補(bǔ)充的多余空格
             //依賴模塊名稱轉(zhuǎn)換為模塊路徑
             nameArray = nameStr.split(" ");
             for(i = 0; i < nameArray.length; i++){
                 srcArray.push(this.srcCache[nameArray[i]]);
             }
             return srcArray;
         },
         /**
          * 遞歸加載模塊
          * @param modules  配置對(duì)象
          * @param name  模塊名稱
          */
         load: function(modules, name){
             var node = {},
                 module = this.findModule.call(modules, "name", name),
                 i = 0;
             //判斷模塊是否存在
             if(!module){
                 throw Error("依賴模塊 " + name +" 未找到");
             }
             //構(gòu)造模塊依賴鏈表
             node.name = name;
 //            node.src = module.src;
             this.srcCache[name] = module.src;
             node.next = this.chainHead;
             this.chainHead = node;
             //遞歸依賴
             if(module.require && module.require.length){
                 for(i = 0;i < module.require.length; i++){
                     this.load(modules, module.require[i]);
                 }
             }
         },
         /**
          * 根據(jù)指定屬性名稱和屬性值查找模塊
          * @param name  屬性名稱
          * @param value  屬性值
          * @returns {*}
          */
         findModule: function(name, value){
             var array = this,
                 item = {},
                 i = 0;
             //遍歷模塊
             for(i = 0; i < array.length; i++){
                 item = array[i];
                 //獲取指定模塊
                 if(item && item[name] === value){
                     return item;
                 }
             }
             //找不到返回null
             return null;
         }
     };
     //暴露對(duì)外接口
     return function(){
         return logics.main.apply(logics, arguments);
     };
 }());
 /**
  * Test Usecase
  * @type {*[]}
  */
 var modules=[
     {'name':'jquery','src':'/js/lib/jquery-1.8.3.js'},
     {'name':'swfobject','src':'/js/utils/swfobject.js'},
     {'name':'fancybox','src':'/js/jquery/jquery.fancybox.js','require':['jquery']},
     {'name':'uploadify','src':'/js/utils/uploadify.js','require':['swfobject']},
     {'name':'jqform','src':'/js/jquery/jquery.form.js','require':['jquery']},
     {'name':'register','src':'/js/page/reg.js','require':['jqform']},
     {'name':'login','src':'/js/page/login.js','require':['fancybox','jqform']},
     {'name':'upload','src':'/js/page/upload.js','require':['fancybox','jqform','login','uploadify']}
 ];
 console.log(loadModule(modules, "upload"));