[ActionScript 3.0] AS3 实现XML转换成JSON

package com.fylib.util
{
    /**
     * @author Frost.Yen
     * @E-mail 871979853@qq.com
     * @create 2015-6-18 下午2:06:01
     *
     */
    public class XML2JSON
    {
        private static var _arrays:Array;
        public function XML2JSON()
        {
            
        }
        public static function parse(node:*):Object {
            var obj:Object = {};
            var numOfChilds:int = node.children().length();
            for(var i:int = 0; i<numOfChilds; i++) {
                var childNode:XML = node.children()[i] as XML;
                var childNodeName:String = childNode.name();
                var value:*;
                if(childNode.children().length() == 1 && childNode.children()[0].name() == null) {
                    if(childNode.attributes().length() > 0) {
                        value = {
                            _content: childNode.children()[0].toString()
                        };
                        var numOfAttributes:int = childNode.attributes().length();
                        for(var j:int=0; j<numOfAttributes; j++) {
                            value[childNode.attributes()[j].name().toString()] = childNode.attributes()[j].toString();
                        }
                    } else {
                        value = childNode.children()[0].toString();
                    }
                } else {
                    value = parse(childNode);
                }
                if(obj[childNodeName]) {
                    if(getTypeof(obj[childNodeName]) == "array") {
                        obj[childNodeName].push(value);
                    } else {
                        obj[childNodeName] = [obj[childNodeName], value];
                    }
                } else if(isArray(childNodeName)) {
                    obj[childNodeName] = [value];
                } else {
                    obj[childNodeName] = value;
                }
            }
            numOfAttributes = node.attributes().length();            
            for(i=0; i<numOfAttributes; i++) {
                obj[node.attributes()[i].name().toString()] = node.attributes()[i].toString();
            }
            if(numOfChilds == 0) {
                if(numOfAttributes == 0) {
                    obj = "";
                } else {
                    obj._content = "";
                }
            }
            return obj;
        }
        public static function get arrays():Array {
            if(!_arrays) {
                _arrays = [];
            }
            return _arrays;
        }
        public static function set arrays(a:Array):void {
            _arrays = a;
        }
        private static function isArray(nodeName:String):Boolean {
            var numOfArrays:int = _arrays ? _arrays.length : 0;
            for(var i:int=0; i<numOfArrays; i++) {
                if(nodeName == _arrays[i]) {
                    return true;
                }
            }
            return false;
        }
        private static function getTypeof(o:*):String {
            if(typeof(o) == "object") {
                if(o.length == null) {
                    return "object";
                } else if(typeof(o.length) == "number") {
                    return "array";
                } else {
                    return "object";
                }
            } else {
                return typeof(o);
            }
        }

        public static function printJSON(o:Object):void {
            //trace("Debug.printJSON");
            //trace(parseJSON(o));
        }
        public static function parseJSON(o:*, spaces:int = 1):String {
            var str:String = "";
            if(getTypeof(o) == "object") {
                str += "{
";
                for(var i:* in o) {
                    str += getSpaces(spaces) + i + "=";
                    if(getTypeof(o[i]) == "object" || getTypeof(o[i]) == "array") {
                        str += parseJSON(o[i], spaces + 1) + "
";
                    } else {
                        var type:String = getTypeof(o[i]);
                        if(type == "string") {
                            str += """ + o[i] + ""
";
                        } else if(type == "number") {
                            str += o[i] + "
";
                        }
                    }
                }
                str += getSpaces(spaces - 1 < 0 ? 0 : spaces - 1) + "}";
            } else if(getTypeof(o) == "array") {
                str += "[
";
                var n:int = o.length;
                for(i=0; i<n; i++) {
                    str += getSpaces(spaces) + "[" + i + "]=";
                    if(getTypeof(o[i]) == "object" || getTypeof(o[i]) == "array") {
                        str += parseJSON(o[i], spaces + 1) + "
";
                    } else {
                        type = getTypeof(o[i]);
                        if(type == "string") {
                            str += """ + o[i] + """;
                        } else if(type == "number") {
                            str += o[i];
                        }
                        str += "
";
                    }
                }
                str += getSpaces(spaces - 1 < 0 ? 0 : spaces - 1) + "]";
            }
            return str;
        }
        private static function getSpaces(n:int):String {
            var str:String = "";
            for(var i:int=0; i<n; i++) {
                str += "  ";
            }
            return str;
        }
//        private static function getTypeof(o:*):String {
//            return typeof(o) == "object" ? (o.length == null ? "object" : "array") : typeof(o);
//        }
    }
}