JS序列化URL方法

function serializeUrl(str){
    var param = {}, hash = {}, anchor;
    var url = str || location.href;
    var arr = /([^?]*)([^#]*)(.*)/.exec(url);
    var ar1 = /^(http|ftp)/.test(arr[1]) ? /(.*?:)?(?:/?/?)([.w]*)(:d*)?(.*?)([^/]*)$/.exec(arr[1]) : /(.*?)([^/]*)$/.exec(arr[1]);var ar2 = arr[2].match(/[^?&=]*=[^?&=]*/g);
    var ar3 = arr[3].match(/[^#&=]*=[^#&=]*/g);

    if(ar2){
        for(var i = 0, l = ar2.length; i < l; i++){
            var ar22 = /([^=]*)(?:=*)(.*)/.exec(ar2[i]);
            param[ar22[1]] = ar22[2];
        }
    }
    
    if(ar3){
        for(var i = 0, l = ar3.length; i < l; i++){
            var ar33 = /([^=]*)(?:=*)(.*)/.exec(ar3[i]);
            hash[ar33[1]] = ar33[2];
        }
    }

    if(arr[3] && !/[=&]/g.test(arr[3])){
        anchor = arr[3];
    }

　　!/^(http|ftp)/.test(arr[1]) && ar1.splice(1, 0, undefined, undefined, undefined);

    function getUrl(){
        var that = this, url = [], param = [], hash = [];

        url.push(that.protocol, that.protocol && '//' || '', that.host, that.port, that.path, that.file);

        for(var p in that.param){
            param.push(p+ '=' +that.param[p]);
        }

        for(var p in that.hash){
            hash.push(p+ '=' +that.hash[p]);
        }

        url.push(param.length && '?' + param.join('&') || '');

        if(that.anchor){
            url.push(that.anchor);
        }else{
            url.push(hash.length && '#' + hash.join('&') || '');
        }

        return url.join('');
    }

    return {
        href: arr[0],
        protocol: ar1[1],
        host: ar1[2],
        port: (ar1[3] || ''),
        path: ar1[4],
        file: ar1[5],
        param: param,
        hash: hash,
        anchor: anchor,
        getUrl: getUrl
    };
};

举例：
serializeUrl('http://www.baidu.com:80/fuwu_bone/html/orderlist.html?a=1&b=2#c=3')

返回结果：

{
　　"href": "http://www.baidu.com:80/fuwu_bone/html/orderlist.html?a=1&b=2#c=3",
　　"protocol": "http:",
　　"host": "www.baidu.com",
　　"port": ":80",
　　"path": "/fuwu_bone/html/",
　　"file": "orderlist.html",
　　"param": {
　　　　"a": "1",
　　　　"b": "2"
　　},
　　"hash": {
　　　　"c": "3"
　　}
}