selenium-webdriver

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The official WebDriver JavaScript bindings from the Selenium project

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<!DOCTYPE html><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"><meta http-equiv="Content-Language" content="en"><meta http-equiv="X-UA-Compatible" content="IE=edge"><title>json.js</title><link href="../../../../dossier.css" rel="stylesheet" type="text/css"><header><div><form><div><input type="search" placeholder="Search"></div></form></div></header><main><article class="srcfile"><h1>lib/goog/json/json.js</h1><div><table><tr><td><a id="l1"></a><a href="#l1">1</a><td>// Copyright 2006 The Closure Library Authors. All Rights Reserved.<tr><td><a id="l2"></a><a href="#l2">2</a><td>//<tr><td><a id="l3"></a><a href="#l3">3</a><td>// Licensed under the Apache License, Version 2.0 (the "License");<tr><td><a id="l4"></a><a href="#l4">4</a><td>// you may not use this file except in compliance with the License.<tr><td><a id="l5"></a><a href="#l5">5</a><td>// You may obtain a copy of the License at<tr><td><a id="l6"></a><a href="#l6">6</a><td>//<tr><td><a id="l7"></a><a href="#l7">7</a><td>// http://www.apache.org/licenses/LICENSE-2.0<tr><td><a id="l8"></a><a href="#l8">8</a><td>//<tr><td><a id="l9"></a><a href="#l9">9</a><td>// Unless required by applicable law or agreed to in writing, software<tr><td><a id="l10"></a><a href="#l10">10</a><td>// distributed under the License is distributed on an "AS-IS" BASIS,<tr><td><a id="l11"></a><a href="#l11">11</a><td>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<tr><td><a id="l12"></a><a href="#l12">12</a><td>// See the License for the specific language governing permissions and<tr><td><a id="l13"></a><a href="#l13">13</a><td>// limitations under the License.<tr><td><a id="l14"></a><a href="#l14">14</a><td><tr><td><a id="l15"></a><a href="#l15">15</a><td>/**<tr><td><a id="l16"></a><a href="#l16">16</a><td> * @fileoverview JSON utility functions.<tr><td><a id="l17"></a><a href="#l17">17</a><td> * @author arv@google.com (Erik Arvidsson)<tr><td><a id="l18"></a><a href="#l18">18</a><td> */<tr><td><a id="l19"></a><a href="#l19">19</a><td><tr><td><a id="l20"></a><a href="#l20">20</a><td><tr><td><a id="l21"></a><a href="#l21">21</a><td>goog.provide('goog.json');<tr><td><a id="l22"></a><a href="#l22">22</a><td>goog.provide('goog.json.Replacer');<tr><td><a id="l23"></a><a href="#l23">23</a><td>goog.provide('goog.json.Reviver');<tr><td><a id="l24"></a><a href="#l24">24</a><td>goog.provide('goog.json.Serializer');<tr><td><a id="l25"></a><a href="#l25">25</a><td><tr><td><a id="l26"></a><a href="#l26">26</a><td><tr><td><a id="l27"></a><a href="#l27">27</a><td>/**<tr><td><a id="l28"></a><a href="#l28">28</a><td> * @define {boolean} If true, use the native JSON parsing API.<tr><td><a id="l29"></a><a href="#l29">29</a><td> * NOTE(ruilopes): EXPERIMENTAL, handle with care. Setting this to true might<tr><td><a id="l30"></a><a href="#l30">30</a><td> * break your code. The default {@code goog.json.parse} implementation is able<tr><td><a id="l31"></a><a href="#l31">31</a><td> * to handle invalid JSON, such as JSPB.<tr><td><a id="l32"></a><a href="#l32">32</a><td> */<tr><td><a id="l33"></a><a href="#l33">33</a><td>goog.define('goog.json.USE_NATIVE_JSON', false);<tr><td><a id="l34"></a><a href="#l34">34</a><td><tr><td><a id="l35"></a><a href="#l35">35</a><td><tr><td><a id="l36"></a><a href="#l36">36</a><td>/**<tr><td><a id="l37"></a><a href="#l37">37</a><td> * Tests if a string is an invalid JSON string. This only ensures that we are<tr><td><a id="l38"></a><a href="#l38">38</a><td> * not using any invalid characters<tr><td><a id="l39"></a><a href="#l39">39</a><td> * @param {string} s The string to test.<tr><td><a id="l40"></a><a href="#l40">40</a><td> * @return {boolean} True if the input is a valid JSON string.<tr><td><a id="l41"></a><a href="#l41">41</a><td> */<tr><td><a id="l42"></a><a href="#l42">42</a><td>goog.json.isValid = function(s) {<tr><td><a id="l43"></a><a href="#l43">43</a><td> // All empty whitespace is not valid.<tr><td><a id="l44"></a><a href="#l44">44</a><td> if (/^\s*$/.test(s)) {<tr><td><a id="l45"></a><a href="#l45">45</a><td> return false;<tr><td><a id="l46"></a><a href="#l46">46</a><td> }<tr><td><a id="l47"></a><a href="#l47">47</a><td><tr><td><a id="l48"></a><a href="#l48">48</a><td> // This is taken from http://www.json.org/json2.js which is released to the<tr><td><a id="l49"></a><a href="#l49">49</a><td> // public domain.<tr><td><a id="l50"></a><a href="#l50">50</a><td> // Changes: We dissallow \u2028 Line separator and \u2029 Paragraph separator<tr><td><a id="l51"></a><a href="#l51">51</a><td> // inside strings. We also treat \u2028 and \u2029 as whitespace which they<tr><td><a id="l52"></a><a href="#l52">52</a><td> // are in the RFC but IE and Safari does not match \s to these so we need to<tr><td><a id="l53"></a><a href="#l53">53</a><td> // include them in the reg exps in all places where whitespace is allowed.<tr><td><a id="l54"></a><a href="#l54">54</a><td> // We allowed \x7f inside strings because some tools don't escape it,<tr><td><a id="l55"></a><a href="#l55">55</a><td> // e.g. http://www.json.org/java/org/json/JSONObject.java<tr><td><a id="l56"></a><a href="#l56">56</a><td><tr><td><a id="l57"></a><a href="#l57">57</a><td> // Parsing happens in three stages. In the first stage, we run the text<tr><td><a id="l58"></a><a href="#l58">58</a><td> // against regular expressions that look for non-JSON patterns. We are<tr><td><a id="l59"></a><a href="#l59">59</a><td> // especially concerned with '()' and 'new' because they can cause invocation,<tr><td><a id="l60"></a><a href="#l60">60</a><td> // and '=' because it can cause mutation. But just to be safe, we want to<tr><td><a id="l61"></a><a href="#l61">61</a><td> // reject all unexpected forms.<tr><td><a id="l62"></a><a href="#l62">62</a><td><tr><td><a id="l63"></a><a href="#l63">63</a><td> // We split the first stage into 4 regexp operations in order to work around<tr><td><a id="l64"></a><a href="#l64">64</a><td> // crippling inefficiencies in IE's and Safari's regexp engines. First we<tr><td><a id="l65"></a><a href="#l65">65</a><td> // replace all backslash pairs with '@' (a non-JSON character). Second, we<tr><td><a id="l66"></a><a href="#l66">66</a><td> // replace all simple value tokens with ']' characters. Third, we delete all<tr><td><a id="l67"></a><a href="#l67">67</a><td> // open brackets that follow a colon or comma or that begin the text. Finally,<tr><td><a id="l68"></a><a href="#l68">68</a><td> // we look to see that the remaining characters are only whitespace or ']' or<tr><td><a id="l69"></a><a href="#l69">69</a><td> // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.<tr><td><a id="l70"></a><a href="#l70">70</a><td><tr><td><a id="l71"></a><a href="#l71">71</a><td> // Don't make these static since they have the global flag.<tr><td><a id="l72"></a><a href="#l72">72</a><td> var backslashesRe = /\\["\\\/bfnrtu]/g;<tr><td><a id="l73"></a><a href="#l73">73</a><td> var simpleValuesRe =<tr><td><a id="l74"></a><a href="#l74">74</a><td> /"[^"\\\n\r\u2028\u2029\x00-\x08\x0a-\x1f]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g;<tr><td><a id="l75"></a><a href="#l75">75</a><td> var openBracketsRe = /(?:^|:|,)(?:[\s\u2028\u2029]*\[)+/g;<tr><td><a id="l76"></a><a href="#l76">76</a><td> var remainderRe = /^[\],:{}\s\u2028\u2029]*$/;<tr><td><a id="l77"></a><a href="#l77">77</a><td><tr><td><a id="l78"></a><a href="#l78">78</a><td> return remainderRe.test(s.replace(backslashesRe, '@').<tr><td><a id="l79"></a><a href="#l79">79</a><td> replace(simpleValuesRe, ']').<tr><td><a id="l80"></a><a href="#l80">80</a><td> replace(openBracketsRe, ''));<tr><td><a id="l81"></a><a href="#l81">81</a><td>};<tr><td><a id="l82"></a><a href="#l82">82</a><td><tr><td><a id="l83"></a><a href="#l83">83</a><td><tr><td><a id="l84"></a><a href="#l84">84</a><td>/**<tr><td><a id="l85"></a><a href="#l85">85</a><td> * Parses a JSON string and returns the result. This throws an exception if<tr><td><a id="l86"></a><a href="#l86">86</a><td> * the string is an invalid JSON string.<tr><td><a id="l87"></a><a href="#l87">87</a><td> *<tr><td><a id="l88"></a><a href="#l88">88</a><td> * Note that this is very slow on large strings. If you trust the source of<tr><td><a id="l89"></a><a href="#l89">89</a><td> * the string then you should use unsafeParse instead.<tr><td><a id="l90"></a><a href="#l90">90</a><td> *<tr><td><a id="l91"></a><a href="#l91">91</a><td> * @param {*} s The JSON string to parse.<tr><td><a id="l92"></a><a href="#l92">92</a><td> * @throws Error if s is invalid JSON.<tr><td><a id="l93"></a><a href="#l93">93</a><td> * @return {Object} The object generated from the JSON string, or null.<tr><td><a id="l94"></a><a href="#l94">94</a><td> */<tr><td><a id="l95"></a><a href="#l95">95</a><td>goog.json.parse = goog.json.USE_NATIVE_JSON ?<tr><td><a id="l96"></a><a href="#l96">96</a><td> /** @type {function(*):Object} */ (goog.global['JSON']['parse']) :<tr><td><a id="l97"></a><a href="#l97">97</a><td> function(s) {<tr><td><a id="l98"></a><a href="#l98">98</a><td> var o = String(s);<tr><td><a id="l99"></a><a href="#l99">99</a><td> if (goog.json.isValid(o)) {<tr><td><a id="l100"></a><a href="#l100">100</a><td> /** @preserveTry */<tr><td><a id="l101"></a><a href="#l101">101</a><td> try {<tr><td><a id="l102"></a><a href="#l102">102</a><td> return /** @type {Object} */ (eval('(' + o + ')'));<tr><td><a id="l103"></a><a href="#l103">103</a><td> } catch (ex) {<tr><td><a id="l104"></a><a href="#l104">104</a><td> }<tr><td><a id="l105"></a><a href="#l105">105</a><td> }<tr><td><a id="l106"></a><a href="#l106">106</a><td> throw Error('Invalid JSON string: ' + o);<tr><td><a id="l107"></a><a href="#l107">107</a><td> };<tr><td><a id="l108"></a><a href="#l108">108</a><td><tr><td><a id="l109"></a><a href="#l109">109</a><td><tr><td><a id="l110"></a><a href="#l110">110</a><td>/**<tr><td><a id="l111"></a><a href="#l111">111</a><td> * Parses a JSON string and returns the result. This uses eval so it is open<tr><td><a id="l112"></a><a href="#l112">112</a><td> * to security issues and it should only be used if you trust the source.<tr><td><a id="l113"></a><a href="#l113">113</a><td> *<tr><td><a id="l114"></a><a href="#l114">114</a><td> * @param {string} s The JSON string to parse.<tr><td><a id="l115"></a><a href="#l115">115</a><td> * @return {Object} The object generated from the JSON string.<tr><td><a id="l116"></a><a href="#l116">116</a><td> */<tr><td><a id="l117"></a><a href="#l117">117</a><td>goog.json.unsafeParse = goog.json.USE_NATIVE_JSON ?<tr><td><a id="l118"></a><a href="#l118">118</a><td> /** @type {function(string):Object} */ (goog.global['JSON']['parse']) :<tr><td><a id="l119"></a><a href="#l119">119</a><td> function(s) {<tr><td><a id="l120"></a><a href="#l120">120</a><td> return /** @type {Object} */ (eval('(' + s + ')'));<tr><td><a id="l121"></a><a href="#l121">121</a><td> };<tr><td><a id="l122"></a><a href="#l122">122</a><td><tr><td><a id="l123"></a><a href="#l123">123</a><td><tr><td><a id="l124"></a><a href="#l124">124</a><td>/**<tr><td><a id="l125"></a><a href="#l125">125</a><td> * JSON replacer, as defined in Section 15.12.3 of the ES5 spec.<tr><td><a id="l126"></a><a href="#l126">126</a><td> * @see http://ecma-international.org/ecma-262/5.1/#sec-15.12.3<tr><td><a id="l127"></a><a href="#l127">127</a><td> *<tr><td><a id="l128"></a><a href="#l128">128</a><td> * TODO(nicksantos): Array should also be a valid replacer.<tr><td><a id="l129"></a><a href="#l129">129</a><td> *<tr><td><a id="l130"></a><a href="#l130">130</a><td> * @typedef {function(this:Object, string, *): *}<tr><td><a id="l131"></a><a href="#l131">131</a><td> */<tr><td><a id="l132"></a><a href="#l132">132</a><td>goog.json.Replacer;<tr><td><a id="l133"></a><a href="#l133">133</a><td><tr><td><a id="l134"></a><a href="#l134">134</a><td><tr><td><a id="l135"></a><a href="#l135">135</a><td>/**<tr><td><a id="l136"></a><a href="#l136">136</a><td> * JSON reviver, as defined in Section 15.12.2 of the ES5 spec.<tr><td><a id="l137"></a><a href="#l137">137</a><td> * @see http://ecma-international.org/ecma-262/5.1/#sec-15.12.3<tr><td><a id="l138"></a><a href="#l138">138</a><td> *<tr><td><a id="l139"></a><a href="#l139">139</a><td> * @typedef {function(this:Object, string, *): *}<tr><td><a id="l140"></a><a href="#l140">140</a><td> */<tr><td><a id="l141"></a><a href="#l141">141</a><td>goog.json.Reviver;<tr><td><a id="l142"></a><a href="#l142">142</a><td><tr><td><a id="l143"></a><a href="#l143">143</a><td><tr><td><a id="l144"></a><a href="#l144">144</a><td>/**<tr><td><a id="l145"></a><a href="#l145">145</a><td> * Serializes an object or a value to a JSON string.<tr><td><a id="l146"></a><a href="#l146">146</a><td> *<tr><td><a id="l147"></a><a href="#l147">147</a><td> * @param {*} object The object to serialize.<tr><td><a id="l148"></a><a href="#l148">148</a><td> * @param {?goog.json.Replacer=} opt_replacer A replacer function<tr><td><a id="l149"></a><a href="#l149">149</a><td> * called for each (key, value) pair that determines how the value<tr><td><a id="l150"></a><a href="#l150">150</a><td> * should be serialized. By defult, this just returns the value<tr><td><a id="l151"></a><a href="#l151">151</a><td> * and allows default serialization to kick in.<tr><td><a id="l152"></a><a href="#l152">152</a><td> * @throws Error if there are loops in the object graph.<tr><td><a id="l153"></a><a href="#l153">153</a><td> * @return {string} A JSON string representation of the input.<tr><td><a id="l154"></a><a href="#l154">154</a><td> */<tr><td><a id="l155"></a><a href="#l155">155</a><td>goog.json.serialize = goog.json.USE_NATIVE_JSON ?<tr><td><a id="l156"></a><a href="#l156">156</a><td> /** @type {function(*, ?goog.json.Replacer=):string} */<tr><td><a id="l157"></a><a href="#l157">157</a><td> (goog.global['JSON']['stringify']) :<tr><td><a id="l158"></a><a href="#l158">158</a><td> function(object, opt_replacer) {<tr><td><a id="l159"></a><a href="#l159">159</a><td> // NOTE(nicksantos): Currently, we never use JSON.stringify.<tr><td><a id="l160"></a><a href="#l160">160</a><td> //<tr><td><a id="l161"></a><a href="#l161">161</a><td> // The last time I evaluated this, JSON.stringify had subtle bugs and<tr><td><a id="l162"></a><a href="#l162">162</a><td> // behavior differences on all browsers, and the performance win was not<tr><td><a id="l163"></a><a href="#l163">163</a><td> // large enough to justify all the issues. This may change in the future<tr><td><a id="l164"></a><a href="#l164">164</a><td> // as browser implementations get better.<tr><td><a id="l165"></a><a href="#l165">165</a><td> //<tr><td><a id="l166"></a><a href="#l166">166</a><td> // assertSerialize in json_test contains if branches for the cases<tr><td><a id="l167"></a><a href="#l167">167</a><td> // that fail.<tr><td><a id="l168"></a><a href="#l168">168</a><td> return new goog.json.Serializer(opt_replacer).serialize(object);<tr><td><a id="l169"></a><a href="#l169">169</a><td> };<tr><td><a id="l170"></a><a href="#l170">170</a><td><tr><td><a id="l171"></a><a href="#l171">171</a><td><tr><td><a id="l172"></a><a href="#l172">172</a><td><tr><td><a id="l173"></a><a href="#l173">173</a><td>/**<tr><td><a id="l174"></a><a href="#l174">174</a><td> * Class that is used to serialize JSON objects to a string.<tr><td><a id="l175"></a><a href="#l175">175</a><td> * @param {?goog.json.Replacer=} opt_replacer Replacer.<tr><td><a id="l176"></a><a href="#l176">176</a><td> * @constructor<tr><td><a id="l177"></a><a href="#l177">177</a><td> */<tr><td><a id="l178"></a><a href="#l178">178</a><td>goog.json.Serializer = function(opt_replacer) {<tr><td><a id="l179"></a><a href="#l179">179</a><td> /**<tr><td><a id="l180"></a><a href="#l180">180</a><td> * @type {goog.json.Replacer|null|undefined}<tr><td><a id="l181"></a><a href="#l181">181</a><td> * @private<tr><td><a id="l182"></a><a href="#l182">182</a><td> */<tr><td><a id="l183"></a><a href="#l183">183</a><td> this.replacer_ = opt_replacer;<tr><td><a id="l184"></a><a href="#l184">184</a><td>};<tr><td><a id="l185"></a><a href="#l185">185</a><td><tr><td><a id="l186"></a><a href="#l186">186</a><td><tr><td><a id="l187"></a><a href="#l187">187</a><td>/**<tr><td><a id="l188"></a><a href="#l188">188</a><td> * Serializes an object or a value to a JSON string.<tr><td><a id="l189"></a><a href="#l189">189</a><td> *<tr><td><a id="l190"></a><a href="#l190">190</a><td> * @param {*} object The object to serialize.<tr><td><a id="l191"></a><a href="#l191">191</a><td> * @throws Error if there are loops in the object graph.<tr><td><a id="l192"></a><a href="#l192">192</a><td> * @return {string} A JSON string representation of the input.<tr><td><a id="l193"></a><a href="#l193">193</a><td> */<tr><td><a id="l194"></a><a href="#l194">194</a><td>goog.json.Serializer.prototype.serialize = function(object) {<tr><td><a id="l195"></a><a href="#l195">195</a><td> var sb = [];<tr><td><a id="l196"></a><a href="#l196">196</a><td> this.serializeInternal(object, sb);<tr><td><a id="l197"></a><a href="#l197">197</a><td> return sb.join('');<tr><td><a id="l198"></a><a href="#l198">198</a><td>};<tr><td><a id="l199"></a><a href="#l199">199</a><td><tr><td><a id="l200"></a><a href="#l200">200</a><td><tr><td><a id="l201"></a><a href="#l201">201</a><td>/**<tr><td><a id="l202"></a><a href="#l202">202</a><td> * Serializes a generic value to a JSON string<tr><td><a id="l203"></a><a href="#l203">203</a><td> * @protected<tr><td><a id="l204"></a><a href="#l204">204</a><td> * @param {*} object The object to serialize.<tr><td><a id="l205"></a><a href="#l205">205</a><td> * @param {Array<string>} sb Array used as a string builder.<tr><td><a id="l206"></a><a href="#l206">206</a><td> * @throws Error if there are loops in the object graph.<tr><td><a id="l207"></a><a href="#l207">207</a><td> */<tr><td><a id="l208"></a><a href="#l208">208</a><td>goog.json.Serializer.prototype.serializeInternal = function(object, sb) {<tr><td><a id="l209"></a><a href="#l209">209</a><td> switch (typeof object) {<tr><td><a id="l210"></a><a href="#l210">210</a><td> case 'string':<tr><td><a id="l211"></a><a href="#l211">211</a><td> this.serializeString_(/** @type {string} */ (object), sb);<tr><td><a id="l212"></a><a href="#l212">212</a><td> break;<tr><td><a id="l213"></a><a href="#l213">213</a><td> case 'number':<tr><td><a id="l214"></a><a href="#l214">214</a><td> this.serializeNumber_(/** @type {number} */ (object), sb);<tr><td><a id="l215"></a><a href="#l215">215</a><td> break;<tr><td><a id="l216"></a><a href="#l216">216</a><td> case 'boolean':<tr><td><a id="l217"></a><a href="#l217">217</a><td> sb.push(object);<tr><td><a id="l218"></a><a href="#l218">218</a><td> break;<tr><td><a id="l219"></a><a href="#l219">219</a><td> case 'undefined':<tr><td><a id="l220"></a><a href="#l220">220</a><td> sb.push('null');<tr><td><a id="l221"></a><a href="#l221">221</a><td> break;<tr><td><a id="l222"></a><a href="#l222">222</a><td> case 'object':<tr><td><a id="l223"></a><a href="#l223">223</a><td> if (object == null) {<tr><td><a id="l224"></a><a href="#l224">224</a><td> sb.push('null');<tr><td><a id="l225"></a><a href="#l225">225</a><td> break;<tr><td><a id="l226"></a><a href="#l226">226</a><td> }<tr><td><a id="l227"></a><a href="#l227">227</a><td> if (goog.isArray(object)) {<tr><td><a id="l228"></a><a href="#l228">228</a><td> this.serializeArray(/** @type {!Array<?>} */ (object), sb);<tr><td><a id="l229"></a><a href="#l229">229</a><td> break;<tr><td><a id="l230"></a><a href="#l230">230</a><td> }<tr><td><a id="l231"></a><a href="#l231">231</a><td> // should we allow new String, new Number and new Boolean to be treated<tr><td><a id="l232"></a><a href="#l232">232</a><td> // as string, number and boolean? Most implementations do not and the<tr><td><a id="l233"></a><a href="#l233">233</a><td> // need is not very big<tr><td><a id="l234"></a><a href="#l234">234</a><td> this.serializeObject_(/** @type {Object} */ (object), sb);<tr><td><a id="l235"></a><a href="#l235">235</a><td> break;<tr><td><a id="l236"></a><a href="#l236">236</a><td> case 'function':<tr><td><a id="l237"></a><a href="#l237">237</a><td> // Skip functions.<tr><td><a id="l238"></a><a href="#l238">238</a><td> // TODO(user) Should we return something here?<tr><td><a id="l239"></a><a href="#l239">239</a><td> break;<tr><td><a id="l240"></a><a href="#l240">240</a><td> default:<tr><td><a id="l241"></a><a href="#l241">241</a><td> throw Error('Unknown type: ' + typeof object);<tr><td><a id="l242"></a><a href="#l242">242</a><td> }<tr><td><a id="l243"></a><a href="#l243">243</a><td>};<tr><td><a id="l244"></a><a href="#l244">244</a><td><tr><td><a id="l245"></a><a href="#l245">245</a><td><tr><td><a id="l246"></a><a href="#l246">246</a><td>/**<tr><td><a id="l247"></a><a href="#l247">247</a><td> * Character mappings used internally for goog.string.quote<tr><td><a id="l248"></a><a href="#l248">248</a><td> * @private<tr><td><a id="l249"></a><a href="#l249">249</a><td> * @type {!Object}<tr><td><a id="l250"></a><a href="#l250">250</a><td> */<tr><td><a id="l251"></a><a href="#l251">251</a><td>goog.json.Serializer.charToJsonCharCache_ = {<tr><td><a id="l252"></a><a href="#l252">252</a><td> '\"': '\\"',<tr><td><a id="l253"></a><a href="#l253">253</a><td> '\\': '\\\\',<tr><td><a id="l254"></a><a href="#l254">254</a><td> '/': '\\/',<tr><td><a id="l255"></a><a href="#l255">255</a><td> '\b': '\\b',<tr><td><a id="l256"></a><a href="#l256">256</a><td> '\f': '\\f',<tr><td><a id="l257"></a><a href="#l257">257</a><td> '\n': '\\n',<tr><td><a id="l258"></a><a href="#l258">258</a><td> '\r': '\\r',<tr><td><a id="l259"></a><a href="#l259">259</a><td> '\t': '\\t',<tr><td><a id="l260"></a><a href="#l260">260</a><td><tr><td><a id="l261"></a><a href="#l261">261</a><td> '\x0B': '\\u000b' // '\v' is not supported in JScript<tr><td><a id="l262"></a><a href="#l262">262</a><td>};<tr><td><a id="l263"></a><a href="#l263">263</a><td><tr><td><a id="l264"></a><a href="#l264">264</a><td><tr><td><a id="l265"></a><a href="#l265">265</a><td>/**<tr><td><a id="l266"></a><a href="#l266">266</a><td> * Regular expression used to match characters that need to be replaced.<tr><td><a id="l267"></a><a href="#l267">267</a><td> * The S60 browser has a bug where unicode characters are not matched by<tr><td><a id="l268"></a><a href="#l268">268</a><td> * regular expressions. The condition below detects such behaviour and<tr><td><a id="l269"></a><a href="#l269">269</a><td> * adjusts the regular expression accordingly.<tr><td><a id="l270"></a><a href="#l270">270</a><td> * @private<tr><td><a id="l271"></a><a href="#l271">271</a><td> * @type {!RegExp}<tr><td><a id="l272"></a><a href="#l272">272</a><td> */<tr><td><a id="l273"></a><a href="#l273">273</a><td>goog.json.Serializer.charsToReplace_ = /\uffff/.test('\uffff') ?<tr><td><a id="l274"></a><a href="#l274">274</a><td> /[\\\"\x00-\x1f\x7f-\uffff]/g : /[\\\"\x00-\x1f\x7f-\xff]/g;<tr><td><a id="l275"></a><a href="#l275">275</a><td><tr><td><a id="l276"></a><a href="#l276">276</a><td><tr><td><a id="l277"></a><a href="#l277">277</a><td>/**<tr><td><a id="l278"></a><a href="#l278">278</a><td> * Serializes a string to a JSON string<tr><td><a id="l279"></a><a href="#l279">279</a><td> * @private<tr><td><a id="l280"></a><a href="#l280">280</a><td> * @param {string} s The string to serialize.<tr><td><a id="l281"></a><a href="#l281">281</a><td> * @param {Array<string>} sb Array used as a string builder.<tr><td><a id="l282"></a><a href="#l282">282</a><td> */<tr><td><a id="l283"></a><a href="#l283">283</a><td>goog.json.Serializer.prototype.serializeString_ = function(s, sb) {<tr><td><a id="l284"></a><a href="#l284">284</a><td> // The official JSON implementation does not work with international<tr><td><a id="l285"></a><a href="#l285">285</a><td> // characters.<tr><td><a id="l286"></a><a href="#l286">286</a><td> sb.push('"', s.replace(goog.json.Serializer.charsToReplace_, function(c) {<tr><td><a id="l287"></a><a href="#l287">287</a><td> // caching the result improves performance by a factor 2-3<tr><td><a id="l288"></a><a href="#l288">288</a><td> if (c in goog.json.Serializer.charToJsonCharCache_) {<tr><td><a id="l289"></a><a href="#l289">289</a><td> return goog.json.Serializer.charToJsonCharCache_[c];<tr><td><a id="l290"></a><a href="#l290">290</a><td> }<tr><td><a id="l291"></a><a href="#l291">291</a><td><tr><td><a id="l292"></a><a href="#l292">292</a><td> var cc = c.charCodeAt(0);<tr><td><a id="l293"></a><a href="#l293">293</a><td> var rv = '\\u';<tr><td><a id="l294"></a><a href="#l294">294</a><td> if (cc < 16) {<tr><td><a id="l295"></a><a href="#l295">295</a><td> rv += '000';<tr><td><a id="l296"></a><a href="#l296">296</a><td> } else if (cc < 256) {<tr><td><a id="l297"></a><a href="#l297">297</a><td> rv += '00';<tr><td><a id="l298"></a><a href="#l298">298</a><td> } else if (cc < 4096) { // \u1000<tr><td><a id="l299"></a><a href="#l299">299</a><td> rv += '0';<tr><td><a id="l300"></a><a href="#l300">300</a><td> }<tr><td><a id="l301"></a><a href="#l301">301</a><td> return goog.json.Serializer.charToJsonCharCache_[c] = rv + cc.toString(16);<tr><td><a id="l302"></a><a href="#l302">302</a><td> }), '"');<tr><td><a id="l303"></a><a href="#l303">303</a><td>};<tr><td><a id="l304"></a><a href="#l304">304</a><td><tr><td><a id="l305"></a><a href="#l305">305</a><td><tr><td><a id="l306"></a><a href="#l306">306</a><td>/**<tr><td><a id="l307"></a><a href="#l307">307</a><td> * Serializes a number to a JSON string<tr><td><a id="l308"></a><a href="#l308">308</a><td> * @private<tr><td><a id="l309"></a><a href="#l309">309</a><td> * @param {number} n The number to serialize.<tr><td><a id="l310"></a><a href="#l310">310</a><td> * @param {Array<string>} sb Array used as a string builder.<tr><td><a id="l311"></a><a href="#l311">311</a><td> */<tr><td><a id="l312"></a><a href="#l312">312</a><td>goog.json.Serializer.prototype.serializeNumber_ = function(n, sb) {<tr><td><a id="l313"></a><a href="#l313">313</a><td> sb.push(isFinite(n) && !isNaN(n) ? n : 'null');<tr><td><a id="l314"></a><a href="#l314">314</a><td>};<tr><td><a id="l315"></a><a href="#l315">315</a><td><tr><td><a id="l316"></a><a href="#l316">316</a><td><tr><td><a id="l317"></a><a href="#l317">317</a><td>/**<tr><td><a id="l318"></a><a href="#l318">318</a><td> * Serializes an array to a JSON string<tr><td><a id="l319"></a><a href="#l319">319</a><td> * @param {Array<string>} arr The array to serialize.<tr><td><a id="l320"></a><a href="#l320">320</a><td> * @param {Array<string>} sb Array used as a string builder.<tr><td><a id="l321"></a><a href="#l321">321</a><td> * @protected<tr><td><a id="l322"></a><a href="#l322">322</a><td> */<tr><td><a id="l323"></a><a href="#l323">323</a><td>goog.json.Serializer.prototype.serializeArray = function(arr, sb) {<tr><td><a id="l324"></a><a href="#l324">324</a><td> var l = arr.length;<tr><td><a id="l325"></a><a href="#l325">325</a><td> sb.push('[');<tr><td><a id="l326"></a><a href="#l326">326</a><td> var sep = '';<tr><td><a id="l327"></a><a href="#l327">327</a><td> for (var i = 0; i < l; i++) {<tr><td><a id="l328"></a><a href="#l328">328</a><td> sb.push(sep);<tr><td><a id="l329"></a><a href="#l329">329</a><td><tr><td><a id="l330"></a><a href="#l330">330</a><td> var value = arr[i];<tr><td><a id="l331"></a><a href="#l331">331</a><td> this.serializeInternal(<tr><td><a id="l332"></a><a href="#l332">332</a><td> this.replacer_ ? this.replacer_.call(arr, String(i), value) : value,<tr><td><a id="l333"></a><a href="#l333">333</a><td> sb);<tr><td><a id="l334"></a><a href="#l334">334</a><td><tr><td><a id="l335"></a><a href="#l335">335</a><td> sep = ',';<tr><td><a id="l336"></a><a href="#l336">336</a><td> }<tr><td><a id="l337"></a><a href="#l337">337</a><td> sb.push(']');<tr><td><a id="l338"></a><a href="#l338">338</a><td>};<tr><td><a id="l339"></a><a href="#l339">339</a><td><tr><td><a id="l340"></a><a href="#l340">340</a><td><tr><td><a id="l341"></a><a href="#l341">341</a><td>/**<tr><td><a id="l342"></a><a href="#l342">342</a><td> * Serializes an object to a JSON string<tr><td><a id="l343"></a><a href="#l343">343</a><td> * @private<tr><td><a id="l344"></a><a href="#l344">344</a><td> * @param {Object} obj The object to serialize.<tr><td><a id="l345"></a><a href="#l345">345</a><td> * @param {Array<string>} sb Array used as a string builder.<tr><td><a id="l346"></a><a href="#l346">346</a><td> */<tr><td><a id="l347"></a><a href="#l347">347</a><td>goog.json.Serializer.prototype.serializeObject_ = function(obj, sb) {<tr><td><a id="l348"></a><a href="#l348">348</a><td> sb.push('{');<tr><td><a id="l349"></a><a href="#l349">349</a><td> var sep = '';<tr><td><a id="l350"></a><a href="#l350">350</a><td> for (var key in obj) {<tr><td><a id="l351"></a><a href="#l351">351</a><td> if (Object.prototype.hasOwnProperty.call(obj, key)) {<tr><td><a id="l352"></a><a href="#l352">352</a><td> var value = obj[key];<tr><td><a id="l353"></a><a href="#l353">353</a><td> // Skip functions.<tr><td><a id="l354"></a><a href="#l354">354</a><td> // TODO(ptucker) Should we return something for function properties?<tr><td><a id="l355"></a><a href="#l355">355</a><td> if (typeof value != 'function') {<tr><td><a id="l356"></a><a href="#l356">356</a><td> sb.push(sep);<tr><td><a id="l357"></a><a href="#l357">357</a><td> this.serializeString_(key, sb);<tr><td><a id="l358"></a><a href="#l358">358</a><td> sb.push(':');<tr><td><a id="l359"></a><a href="#l359">359</a><td><tr><td><a id="l360"></a><a href="#l360">360</a><td> this.serializeInternal(<tr><td><a id="l361"></a><a href="#l361">361</a><td> this.replacer_ ? this.replacer_.call(obj, key, value) : value,<tr><td><a id="l362"></a><a href="#l362">362</a><td> sb);<tr><td><a id="l363"></a><a href="#l363">363</a><td><tr><td><a id="l364"></a><a href="#l364">364</a><td> sep = ',';<tr><td><a id="l365"></a><a href="#l365">365</a><td> }<tr><td><a id="l366"></a><a href="#l366">366</a><td> }<tr><td><a id="l367"></a><a href="#l367">367</a><td> }<tr><td><a id="l368"></a><a href="#l368">368</a><td> sb.push('}');<tr><td><a id="l369"></a><a href="#l369">369</a><td>};</table></div></article><nav><h3><a href="../../../../index.html">Overview</a></h3><div><input type="checkbox" id="nav-modules" checked/><label 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