/*!

* url 相关操作

* @author ydr.me

* @create 2015-03-05 15:42

*/

define(function (require, exports, module) {

/**

* @module utils/url

* @requires utils/querystring

* @requires utils/hashbang

*/

'use strict';

var qs = require('./querystring.js');

var hb = require('./hashbang.js');

var keys = ['hash', 'host', 'hostname', 'href', 'pathname', 'port', 'protocol'];

var REG_QUERY = /\?(.*?)(#|$)/;

var link = document.createElement('a');

/**

* url 解析

* @param url {String} url 地址

* @returns {Object}

*/

exports.parse = function (url) {

link.href = url;

var ret = {};

keys.forEach(function (key) {

ret[key] = link[key];

});

ret.querystring = (ret.href.match(REG_QUERY) || ['', ''])[1];

ret.query = qs.parse(ret.querystring);

ret.search = ret.querystring ? '?' + ret.querystring : '';

ret.hashbang = hb.parse(ret.hash);

ret.base = ret.protocol + '//' + ret.host + ret.pathname;

return ret;

};

/**

* url 字符化

* @param obj {Object} url 信息

* @returns {string}

*/

exports.stringify = function (obj) {

obj.protocol = obj.protocol || 'http:';

obj.host = obj.host || '';

obj.pathname = obj.pathname || '';

obj.search = obj.search || '';

obj.hash = obj.hash || '';

if (!obj.search) {

obj.search = qs.stringify(obj.query);

obj.search = obj.search ? '?' + obj.search : '';

}

return obj.protocol + '//' + obj.host + obj.pathname + obj.search + obj.hash;

};

});