Javascript正则分组命名

Javascript的正则分组不支持命名，只好自己搞了一个。先把命名存入数组，然后匹配。

唉~~~有更好的解决方案么？

代码：

?

var route = '/{controller}/{action}/{id}',

    url = '/home/index/2';

 

groupRE(route, url); // ==> {controller:'home', action:'index', id:'2'}

 

/*

* @re: string, e.g.: '/{controller}/{action}/{id}'

* @s: string to match, e.g.: 'home/index/2'

* @return: dict, e.g.: {controller:'home', action:'index', id:'2'}

*/

function groupRE(re, s){

    var names = [], result = {}, cursor = 0;

    re = re.replace(/\{([^}]+)\}/g, function(m, g1){

        names.push(g1);

        return '(.+)';

    });

    re = new RegExp(re);

    var tmp = re.exec(s);

    if(tmp){

        for(var i=1; i<tmp.length; i++){

            if(names[i-1]){

                result[ names[i-1] ] = tmp[i];

            }

        }

    }

    return result;

}