3 var Utils = require('./utils');
10 arrayPrefixGenerators: {
11 brackets: function (prefix, key) {
15 indices: function (prefix, key) {
17 return prefix + '[' + key + ']';
19 repeat: function (prefix, key) {
24 strictNullHandling: false
28 internals.stringify = function (obj, prefix, generateArrayPrefix, strictNullHandling, filter) {
30 if (typeof filter === 'function') {
31 obj = filter(prefix, obj);
33 else if (Utils.isBuffer(obj)) {
36 else if (obj instanceof Date) {
37 obj = obj.toISOString();
39 else if (obj === null) {
40 if (strictNullHandling) {
41 return Utils.encode(prefix);
47 if (typeof obj === 'string' ||
48 typeof obj === 'number' ||
49 typeof obj === 'boolean') {
51 return [Utils.encode(prefix) + '=' + Utils.encode(obj)];
56 if (typeof obj === 'undefined') {
60 var objKeys = Array.isArray(filter) ? filter : Object.keys(obj);
61 for (var i = 0, il = objKeys.length; i < il; ++i) {
64 if (Array.isArray(obj)) {
65 values = values.concat(internals.stringify(obj[key], generateArrayPrefix(prefix, key), generateArrayPrefix, strictNullHandling, filter));
68 values = values.concat(internals.stringify(obj[key], prefix + '[' + key + ']', generateArrayPrefix, strictNullHandling, filter));
76 module.exports = function (obj, options) {
78 options = options || {};
79 var delimiter = typeof options.delimiter === 'undefined' ? internals.delimiter : options.delimiter;
80 var strictNullHandling = typeof options.strictNullHandling === 'boolean' ? options.strictNullHandling : internals.strictNullHandling;
83 if (typeof options.filter === 'function') {
84 filter = options.filter;
85 obj = filter('', obj);
87 else if (Array.isArray(options.filter)) {
88 objKeys = filter = options.filter;
93 if (typeof obj !== 'object' ||
100 if (options.arrayFormat in internals.arrayPrefixGenerators) {
101 arrayFormat = options.arrayFormat;
103 else if ('indices' in options) {
104 arrayFormat = options.indices ? 'indices' : 'repeat';
107 arrayFormat = 'indices';
110 var generateArrayPrefix = internals.arrayPrefixGenerators[arrayFormat];
113 objKeys = Object.keys(obj);
115 for (var i = 0, il = objKeys.length; i < il; ++i) {
116 var key = objKeys[i];
117 keys = keys.concat(internals.stringify(obj[key], key, generateArrayPrefix, strictNullHandling, filter));
120 return keys.join(delimiter);