[转] JS URL Parser ——JS的URL解析类

/**
*@param {string} url 完整的URL地址
*@returns {object} 自定义的对象
*@description 用法示例：var myURL = parseURL('http://abc.com:8080/dir/index.html?id=255&m=hello#top');

myURL.file='index.html'

myURL.hash= 'top'

myURL.host= 'abc.com'

myURL.query= '?id=255&m=hello'

myURL.params= Object = { id: 255, m: hello }

myURL.path= '/dir/index.html'

myURL.segments= Array = ['dir', 'index.html']

myURL.port= '8080'

yURL.protocol= 'http'

myURL.source= 'http://abc.com:8080/dir/index.html?id=255&m=hello#top'

*/
function parseURL(url) {
 var a =  document.createElement('a');
 a.href = url;
 return {
 source: url,
 protocol: a.protocol.replace(':',''),
 host: a.hostname,
 port: a.port,
 query: a.search,
 params: (function(){
     var ret = {},
         seg = a.search.replace(/^\?/,'').split('&'),
         len = seg.length, i = 0, s;
     for (;i<len;i++) {
         if (!seg[i]) { continue; }
         s = seg[i].split('=');
         ret[s[0]] = s[1];
     }
     return ret;
 })(),
 file: (a.pathname.match(/\/([^\/?#]+)$/i) || [,''])[1],
 hash: a.hash.replace('#',''),
 path: a.pathname.replace(/^([^\/])/,'/$1'),
 relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [,''])[1],
 segments: a.pathname.replace(/^\//,'').split('/')
 };
}

转自： http://my.oschina.net/femdom/blog/26176