1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>The source code</title>
<link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
<script type="text/javascript" src="../resources/prettify/prettify.js"></script>
</head>
<body onload="prettyPrint();">
<pre class="prettyprint lang-js">/*!
* Ext JS Library 3.4.0
* Copyright(c) 2006-2011 Sencha Inc.
* licensing@sencha.com
* http://www.sencha.com/license
*/
<div id="cls-Ext.util.JSON"></div>/**
* @class Ext.util.JSON
* Modified version of Douglas Crockford"s json.js that doesn"t
* mess with the Object prototype
* http://www.json.org/js.html
* @singleton
*/
Ext.util.JSON = new (function(){
var useHasOwn = !!{}.hasOwnProperty,
isNative = function() {
var useNative = null;
return function() {
if (useNative === null) {
useNative = Ext.USE_NATIVE_JSON && window.JSON && JSON.toString() == '[object JSON]';
}
return useNative;
};
}(),
pad = function(n) {
return n < 10 ? "0" + n : n;
},
doDecode = function(json){
return json ? eval("(" + json + ")") : "";
},
doEncode = function(o){
if(!Ext.isDefined(o) || o === null){
return "null";
}else if(Ext.isArray(o)){
return encodeArray(o);
}else if(Ext.isDate(o)){
return Ext.util.JSON.encodeDate(o);
}else if(Ext.isString(o)){
return encodeString(o);
}else if(typeof o == "number"){
//don't use isNumber here, since finite checks happen inside isNumber
return isFinite(o) ? String(o) : "null";
}else if(Ext.isBoolean(o)){
return String(o);
}else {
var a = ["{"], b, i, v;
for (i in o) {
// don't encode DOM objects
if(!o.getElementsByTagName){
if(!useHasOwn || o.hasOwnProperty(i)) {
v = o[i];
switch (typeof v) {
case "undefined":
case "function":
case "unknown":
break;
default:
if(b){
a.push(',');
}
a.push(doEncode(i), ":",
v === null ? "null" : doEncode(v));
b = true;
}
}
}
}
a.push("}");
return a.join("");
}
},
m = {
"\b": '\\b',
"\t": '\\t',
"\n": '\\n',
"\f": '\\f',
"\r": '\\r',
'"' : '\\"',
"\\": '\\\\'
},
encodeString = function(s){
if (/["\\\x00-\x1f]/.test(s)) {
return '"' + s.replace(/([\x00-\x1f\\"])/g, function(a, b) {
var c = m[b];
if(c){
return c;
}
c = b.charCodeAt();
return "\\u00" +
Math.floor(c / 16).toString(16) +
(c % 16).toString(16);
}) + '"';
}
return '"' + s + '"';
},
encodeArray = function(o){
var a = ["["], b, i, l = o.length, v;
for (i = 0; i < l; i += 1) {
v = o[i];
switch (typeof v) {
case "undefined":
case "function":
case "unknown":
break;
default:
if (b) {
a.push(',');
}
a.push(v === null ? "null" : Ext.util.JSON.encode(v));
b = true;
}
}
a.push("]");
return a.join("");
};
<div id="method-Ext.util.JSON-encodeDate"></div>/**
* <p>Encodes a Date. This returns the actual string which is inserted into the JSON string as the literal expression.
* <b>The returned value includes enclosing double quotation marks.</b></p>
* <p>The default return format is "yyyy-mm-ddThh:mm:ss".</p>
* <p>To override this:</p><pre><code>
Ext.util.JSON.encodeDate = function(d) {
return d.format('"Y-m-d"');
};
</code></pre>
* @param {Date} d The Date to encode
* @return {String} The string literal to use in a JSON string.
*/
this.encodeDate = function(o){
return '"' + o.getFullYear() + "-" +
pad(o.getMonth() + 1) + "-" +
pad(o.getDate()) + "T" +
pad(o.getHours()) + ":" +
pad(o.getMinutes()) + ":" +
pad(o.getSeconds()) + '"';
};
<div id="method-Ext.util.JSON-encode"></div>/**
* Encodes an Object, Array or other value
* @param {Mixed} o The variable to encode
* @return {String} The JSON string
*/
this.encode = function() {
var ec;
return function(o) {
if (!ec) {
// setup encoding function on first access
ec = isNative() ? JSON.stringify : doEncode;
}
return ec(o);
};
}();
<div id="method-Ext.util.JSON-decode"></div>/**
* Decodes (parses) a JSON string to an object. If the JSON is invalid, this function throws a SyntaxError unless the safe option is set.
* @param {String} json The JSON string
* @return {Object} The resulting object
*/
this.decode = function() {
var dc;
return function(json) {
if (!dc) {
// setup decoding function on first access
dc = isNative() ? JSON.parse : doDecode;
}
return dc(json);
};
}();
})();
<div id="method-Ext-encode"></div>/**
* Shorthand for {@link Ext.util.JSON#encode}
* @param {Mixed} o The variable to encode
* @return {String} The JSON string
* @member Ext
* @method encode
*/
Ext.encode = Ext.util.JSON.encode;
<div id="method-Ext-decode"></div>/**
* Shorthand for {@link Ext.util.JSON#decode}
* @param {String} json The JSON string
* @param {Boolean} safe (optional) Whether to return null or throw an exception if the JSON is invalid.
* @return {Object} The resulting object
* @member Ext
* @method decode
*/
Ext.decode = Ext.util.JSON.decode;
</pre>
</body>
</html>
|
