删除xml属性中的双引号

var ss:String = "<rr><ww cc=\"\"\"\" /></rr>";
trace(ss);
var ex:RegExp = /(.)(\"{1})(.)/g;
var ss2:String = ss.replace(ex,myFun);
function myFun(...aum):String{
    trace("-----");
    trace(aum);
    trace("-----");
    var yin:String = "[&quot;]";
    if(aum[1] == "="){
        aum[3] = aum[3].replace(/\"/g,yin);
        return aum[1]+aum[2]+aum[3];
    }else if(aum[3] == " " || aum[3] == "\/"){
        aum[1] = aum[1].replace(/\"/g,yin);
        return aum[1]+aum[2]+aum[3];
    }else if(aum[5].substr(int(aum[4])+3,1) == " " || aum[5].substr(int(aum[4])+3,1) == "\/"){
        aum[1] = aum[1].replace(/\"/g,yin);
        aum[2] = aum[2].replace(/\"/g,yin);
        return aum[1]+aum[2]+aum[3];
    }else{
        return aum[0].replace(/\"/g,yin);
    }
}
trace(ss2);

后面又想到一个方法：

var ss:String = "<rr><ww cc=\"\"\"gh\"\"hggh\"\" /></rr>";
trace(ss);
var ex:RegExp = /(\")/g;
var ss2:String = ss.replace(ex,myFun);
function myFun(...aum):String{
    var yin:String = "[&quot;]";
    var len:uint = aum.length;
    var index:int = aum[len-2];
    var txt:String = aum[len-1];
    var t_l:String;
    var t_r:String;
    trace(aum);
    if(index != 0 && index != len){
        t_l = txt.substr(index-1,1);
        t_r = txt.substr(index+1,1);
        if(t_l != "=" && t_r != " " && t_r != "\/"){
            return "{me}";
        }
    }
    return aum[1];
}
trace(ss2);