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
|
/*
Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
Available via Academic Free License >= 2.1 OR the modified BSD license.
see: http://dojotoolkit.org/license for details
*/
if(!dojo._hasResource["dojo._base.json"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo._base.json"] = true;
dojo.provide("dojo._base.json");
dojo.fromJson = function(/*String*/ json){
// summary:
// Parses a [JSON](http://json.org) string to return a JavaScript object.
// description:
// Throws for invalid JSON strings, but it does not use a strict JSON parser. It
// delegates to eval(). The content passed to this method must therefore come
// from a trusted source.
// json:
// a string literal of a JSON item, for instance:
// `'{ "foo": [ "bar", 1, { "baz": "thud" } ] }'`
return eval("(" + json + ")"); // Object
};
dojo._escapeString = function(/*String*/str){
//summary:
// Adds escape sequences for non-visual characters, double quote and
// backslash and surrounds with double quotes to form a valid string
// literal.
return ('"' + str.replace(/(["\\])/g, '\\$1') + '"').
replace(/[\f]/g, "\\f").replace(/[\b]/g, "\\b").replace(/[\n]/g, "\\n").
replace(/[\t]/g, "\\t").replace(/[\r]/g, "\\r"); // string
};
dojo.toJsonIndentStr = "\t";
dojo.toJson = function(/*Object*/ it, /*Boolean?*/ prettyPrint, /*String?*/ _indentStr){
// summary:
// Returns a [JSON](http://json.org) serialization of an object.
// description:
// Returns a [JSON](http://json.org) serialization of an object.
// Note that this doesn't check for infinite recursion, so don't do that!
// it:
// an object to be serialized. Objects may define their own
// serialization via a special "__json__" or "json" function
// property. If a specialized serializer has been defined, it will
// be used as a fallback.
// prettyPrint:
// if true, we indent objects and arrays to make the output prettier.
// The variable `dojo.toJsonIndentStr` is used as the indent string --
// to use something other than the default (tab), change that variable
// before calling dojo.toJson().
// _indentStr:
// private variable for recursive calls when pretty printing, do not use.
// example:
// simple serialization of a trivial object
// | var jsonStr = dojo.toJson({ howdy: "stranger!", isStrange: true });
// | doh.is('{"howdy":"stranger!","isStrange":true}', jsonStr);
// example:
// a custom serializer for an objects of a particular class:
// | dojo.declare("Furby", null, {
// | furbies: "are strange",
// | furbyCount: 10,
// | __json__: function(){
// | },
// | });
if(it === undefined){
return "undefined";
}
var objtype = typeof it;
if(objtype == "number" || objtype == "boolean"){
return it + "";
}
if(it === null){
return "null";
}
if(dojo.isString(it)){
return dojo._escapeString(it);
}
// recurse
var recurse = arguments.callee;
// short-circuit for objects that support "json" serialization
// if they return "self" then just pass-through...
var newObj;
_indentStr = _indentStr || "";
var nextIndent = prettyPrint ? _indentStr + dojo.toJsonIndentStr : "";
var tf = it.__json__||it.json;
if(dojo.isFunction(tf)){
newObj = tf.call(it);
if(it !== newObj){
return recurse(newObj, prettyPrint, nextIndent);
}
}
if(it.nodeType && it.cloneNode){ // isNode
// we can't seriailize DOM nodes as regular objects because they have cycles
// DOM nodes could be serialized with something like outerHTML, but
// that can be provided by users in the form of .json or .__json__ function.
throw new Error("Can't serialize DOM nodes");
}
var sep = prettyPrint ? " " : "";
var newLine = prettyPrint ? "\n" : "";
// array
if(dojo.isArray(it)){
var res = dojo.map(it, function(obj){
var val = recurse(obj, prettyPrint, nextIndent);
if(typeof val != "string"){
val = "undefined";
}
return newLine + nextIndent + val;
});
return "[" + res.join("," + sep) + newLine + _indentStr + "]";
}
/*
// look in the registry
try {
window.o = it;
newObj = dojo.json.jsonRegistry.match(it);
return recurse(newObj, prettyPrint, nextIndent);
}catch(e){
// console.log(e);
}
// it's a function with no adapter, skip it
*/
if(objtype == "function"){
return null; // null
}
// generic object code path
var output = [], key;
for(key in it){
var keyStr, val;
if(typeof key == "number"){
keyStr = '"' + key + '"';
}else if(typeof key == "string"){
keyStr = dojo._escapeString(key);
}else{
// skip non-string or number keys
continue;
}
val = recurse(it[key], prettyPrint, nextIndent);
if(typeof val != "string"){
// skip non-serializable values
continue;
}
// FIXME: use += on Moz!!
// MOW NOTE: using += is a pain because you have to account for the dangling comma...
output.push(newLine + nextIndent + keyStr + ":" + sep + val);
}
return "{" + output.join("," + sep) + newLine + _indentStr + "}"; // String
};
}
|
