jQuery.url = function() { var segments = {}; var parsed = {}; var options = { url: window.location, strictMode: false, key: ["source", "protocol", "authority", "userInfo", "user", "password", "host", "port", "relative", "path", "directory", "file", "query", "anchor"], q: { name: "queryKey", parser: /(?:^|&)([^&=]*)=?([^&]*)/g }, parser: { strict: /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/, loose: /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/} }; var parseUri = function() { str = decodeURI(options.url); var m = options.parser[options.strictMode ? "strict" : "loose"].exec(str); var uri = {}; var i = 14; while (i--) { uri[options.key[i]] = m[i] || "" } uri[options.q.name] = {}; uri[options.key[12]].replace(options.q.parser, function($0, $1, $2) { if ($1) { uri[options.q.name][$1] = $2 } }); return uri }; var key = function(key) { if (!parsed.length) { setUp() } if (key == "base") { if (parsed.port !== null && parsed.port !== "") { return parsed.protocol + "://" + parsed.host + ":" + parsed.port + "/" } else { return parsed.protocol + "://" + parsed.host + "/" } } return (parsed[key] === "") ? null : parsed[key] }; var param = function(item) { if (!parsed.length) { setUp() } return (parsed.queryKey[item] === null) ? null : parsed.queryKey[item] }; var setUp = function() { parsed = parseUri(); getSegments() }; var getSegments = function() { var p = parsed.path; segments = []; segments = parsed.path.length == 1 ? {} : (p.charAt(p.length - 1) == "/" ? p.substring(1, p.length - 1) : path = p.substring(1)).split("/") }; return { setMode: function(mode) { strictMode = mode == "strict" ? true : false; return this }, setUrl: function(newUri) { options.url = newUri === undefined ? window.location : newUri; setUp(); return this }, segment: function(pos) { if (!parsed.length) { setUp() } if (pos === undefined) { return segments.length } return (segments[pos] === "" || segments[pos] === undefined) ? null : segments[pos] }, attr: key, param: param} } ();