1 /****************************************************************************
  2  Copyright (c) 2008-2010 Ricardo Quesada
  3  Copyright (c) 2011-2012 cocos2d-x.org
  4  Copyright (c) 2013-2014 Chukong Technologies Inc.
  5 
  6  http://www.cocos2d-x.org
  7 
  8  Permission is hereby granted, free of charge, to any person obtaining a copy
  9  of this software and associated documentation files (the "Software"), to deal
 10  in the Software without restriction, including without limitation the rights
 11  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 12  copies of the Software, and to permit persons to whom the Software is
 13  furnished to do so, subject to the following conditions:
 14 
 15  The above copyright notice and this permission notice shall be included in
 16  all copies or substantial portions of the Software.
 17 
 18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 19  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 20  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 21  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 22  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 23  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 24  THE SOFTWARE.
 25  ****************************************************************************/
 26 
 27 /**
 28  * A SAX Parser
 29  * @class
 30  * @name cc.saxParser
 31  * @extends cc.Class
 32  */
 33 cc.SAXParser = cc.Class.extend(/** @lends cc.saxParser# */{
 34     _parser: null,
 35     _isSupportDOMParser: null,
 36 
 37     /**
 38      * Constructor of cc.SAXParser
 39      */
 40     ctor: function () {
 41         if (window.DOMParser) {
 42             this._isSupportDOMParser = true;
 43             this._parser = new DOMParser();
 44         } else {
 45             this._isSupportDOMParser = false;
 46         }
 47     },
 48 
 49     /**
 50      * @function
 51      * @param {String} xmlTxt
 52      * @return {Document}
 53      */
 54     parse : function(xmlTxt){
 55         return this._parseXML(xmlTxt);
 56     },
 57 
 58     _parseXML: function (textxml) {
 59         // get a reference to the requested corresponding xml file
 60         var xmlDoc;
 61         if (this._isSupportDOMParser) {
 62             xmlDoc = this._parser.parseFromString(textxml, "text/xml");
 63         } else {
 64             // Internet Explorer (untested!)
 65             xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
 66             xmlDoc.async = "false";
 67             xmlDoc.loadXML(textxml);
 68         }
 69         return xmlDoc;
 70     }
 71 
 72 });
 73 
 74 /**
 75  *
 76  * cc.plistParser is a singleton object for parsing plist files
 77  * @class
 78  * @name cc.plistParser
 79  * @extends cc.SAXParser
 80  */
 81 cc.PlistParser = cc.SAXParser.extend(/** @lends cc.plistParser# */{
 82 
 83     /**
 84      * parse a xml string as plist object.
 85      * @param {String} xmlTxt plist xml contents
 86      * @return {*} plist object
 87      */
 88     parse : function (xmlTxt) {
 89         var xmlDoc = this._parseXML(xmlTxt);
 90         var plist = xmlDoc.documentElement;
 91         if (plist.tagName != 'plist')
 92             throw "Not a plist file!";
 93 
 94         // Get first real node
 95         var node = null;
 96         for (var i = 0, len = plist.childNodes.length; i < len; i++) {
 97             node = plist.childNodes[i];
 98             if (node.nodeType == 1)
 99                 break;
100         }
101         xmlDoc = null;
102         return this._parseNode(node);
103     },
104 
105     _parseNode: function (node) {
106         var data = null, tagName = node.tagName;
107         if(tagName == "dict"){
108             data = this._parseDict(node);
109         }else if(tagName == "array"){
110             data = this._parseArray(node);
111         }else if(tagName == "string"){
112             if (node.childNodes.length == 1)
113                 data = node.firstChild.nodeValue;
114             else {
115                 //handle Firefox's 4KB nodeValue limit
116                 data = "";
117                 for (var i = 0; i < node.childNodes.length; i++)
118                     data += node.childNodes[i].nodeValue;
119             }
120         }else if(tagName == "false"){
121             data = false;
122         }else if(tagName == "true"){
123             data = true;
124         }else if(tagName == "real"){
125             data = parseFloat(node.firstChild.nodeValue);
126         }else if(tagName == "integer"){
127             data = parseInt(node.firstChild.nodeValue, 10);
128         }
129         return data;
130     },
131 
132     _parseArray: function (node) {
133         var data = [];
134         for (var i = 0, len = node.childNodes.length; i < len; i++) {
135             var child = node.childNodes[i];
136             if (child.nodeType != 1)
137                 continue;
138             data.push(this._parseNode(child));
139         }
140         return data;
141     },
142 
143     _parseDict: function (node) {
144         var data = {};
145         var key = null;
146         for (var i = 0, len = node.childNodes.length; i < len; i++) {
147             var child = node.childNodes[i];
148             if (child.nodeType != 1)
149                 continue;
150 
151             // Grab the key, next noe should be the value
152             if (child.tagName == 'key')
153                 key = child.firstChild.nodeValue;
154             else
155                 data[key] = this._parseNode(child);                 // Parse the value node
156         }
157         return data;
158     }
159 
160 });