jslib路径计算

Path.js

/*
 * jslib JavaScript Library
 * 
 * create:
 * @2011-11-30 by mytharcher
 * 
 * update:
 */

///import js.util.Class;
///import js.net;

/**
 * @class js.net.Path URL地址处理类
 */
js.net.Path = js.util.Class.create({
	constructor: function (path) {
		this._path = path;
	},
	
	forward: function (base, rel) {
	    var relArr = rel.split('../');
	    var len = relArr.length - 1;
	    var baseArr = base.split('/');
	    baseArr.splice(baseArr.length - len, len);
	    return baseArr.join('/') + '/' + relArr.pop();
	}
});

/*
 * usage:
 * path.forward("http://jntest.baidu.com:8080/src/jn/landmark/promotion/material_list.app.html", "../../../jn/a.css");
 * => "http://jntest.baidu.com:8080/src/jn/jn/a.css"
 */