2 YUI 3.13.0 (build 508226d)
3 Copyright 2013 Yahoo! Inc. All rights reserved.
4 Licensed under the BSD License.
5 http://yuilibrary.com/license/
8 YUI.add('querystring-parse', function (Y, NAME) {
11 * The QueryString module adds support for serializing JavaScript objects into
12 * query strings and parsing JavaScript objects from query strings format.
14 * The QueryString namespace is added to your YUI instance including static methods
15 * `Y.QueryString.parse(..)` and `Y.QueryString.stringify(..)`.
17 * The `querystring` module is a alias for `querystring-parse` and
18 * `querystring-stringify`.
20 * As their names suggest, `querystring-parse` adds support for parsing
21 * Query String data (`Y.QueryString.parse`) and `querystring-stringify` for serializing
22 * JavaScript data into Query Strings (`Y.QueryString.stringify`). You may choose to
23 * include either of the submodules individually if you don't need the
24 * complementary functionality, or include the rollup for both.
31 * Provides Y.QueryString.parse method to accept Query Strings and return native
35 * @submodule querystring-parse
39 * The QueryString module adds support for serializing JavaScript objects into
40 * query strings and parsing JavaScript objects from query strings format.
44 var QueryString = Y.namespace("QueryString"),
46 // Parse a key=val string.
47 // These can get pretty hairy
49 // parse(foo[bar][][bla]=baz)
50 // return parse(foo[bar][][bla],"baz")
51 // return parse(foo[bar][], {bla : "baz"})
52 // return parse(foo[bar], [{bla:"baz"}])
53 // return parse(foo, {bar:[{bla:"baz"}]})
54 // return {foo:{bar:[{bla:"baz"}]}}
55 pieceParser = function (eq) {
56 return function parsePiece (key, val) {
58 var sliced, numVal, head, tail, ret;
60 if (arguments.length !== 2) {
61 // key=val, called from the map/reduce
64 QueryString.unescape(key.shift()),
65 QueryString.unescape(key.join(eq))
68 key = key.replace(/^\s+|\s+$/g, '');
69 if (Y.Lang.isString(val)) {
70 val = val.replace(/^\s+|\s+$/g, '');
71 // convert numerals to numbers
74 if (val === numVal.toString(10)) {
79 sliced = /(.*)\[([^\]]*)\]$/.exec(key);
87 // ["foo[][bar][][baz]", "foo[][bar][]", "baz"]
93 return parsePiece(head, [val]);
96 // obj: key[subkey]=val
99 return parsePiece(head, ret);
103 // the reducer function that merges each query piece together into one set of params
104 mergeParams = function(params, addition) {
106 // if it's uncontested, then just return the addition.
108 // if the existing value is an array, then concat it.
109 : (Y.Lang.isArray(params)) ? params.concat(addition)
110 // if the existing value is not an array, and either are not objects, arrayify it.
111 : (!Y.Lang.isObject(params) || !Y.Lang.isObject(addition)) ? [params].concat(addition)
112 // else merge them as objects, which is a little more complex
113 : mergeObjects(params, addition)
117 // Merge two *objects* together. If this is called, we've already ruled
118 // out the simple cases, and need to do the for-in business.
119 mergeObjects = function(params, addition) {
120 for (var i in addition) {
121 if (i && addition.hasOwnProperty(i)) {
122 params[i] = mergeParams(params[i], addition[i]);
129 * Accept Query Strings and return native JavaScript objects.
132 * @param qs {String} Querystring to be parsed into an object.
133 * @param sep {String} (optional) Character that should join param k=v pairs together. Default: "&"
134 * @param eq {String} (optional) Character that should join keys to their values. Default: "="
138 QueryString.parse = function (qs, sep, eq) {
139 // wouldn't Y.Array(qs.split()).map(pieceParser(eq)).reduce(mergeParams) be prettier?
140 return Y.Array.reduce(
142 qs.split(sep || "&"),
143 pieceParser(eq || "=")
151 * Provides Y.QueryString.unescape method to be able to override default decoding
152 * method. This is important in cases where non-standard delimiters are used, if
153 * the delimiters would not normally be handled properly by the builtin
154 * (en|de)codeURIComponent functions.
155 * Default: replace "+" with " ", and then decodeURIComponent behavior.
158 * @param s {String} String to be decoded.
162 QueryString.unescape = function (s) {
163 return decodeURIComponent(s.replace(/\+/g, ' '));
169 }, '3.13.0', {"requires": ["yui-base", "array-extras"]});