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
|
function OutputStream(options) {
options = defaults(options, {
indent_start : 0,
indent_level : 4,
quote_keys : false,
space_colon : false,
ascii_only : false,
inline_script : false,
width : 80
});
var indentation = 0;
var current_col = 0;
var current_line = 0;
var OUTPUT = "";
function to_ascii(str) {
return str.replace(/[\u0080-\uffff]/g, function(ch) {
var code = ch.charCodeAt(0).toString(16);
while (code.length < 4) code = "0" + code;
return "\\u" + code;
});
};
function make_string(str) {
var dq = 0, sq = 0;
str = str.replace(/[\\\b\f\n\r\t\x22\x27\u2028\u2029\0]/g, function(s){
switch (s) {
case "\\": return "\\\\";
case "\b": return "\\b";
case "\f": return "\\f";
case "\n": return "\\n";
case "\r": return "\\r";
case "\u2028": return "\\u2028";
case "\u2029": return "\\u2029";
case '"': ++dq; return '"';
case "'": ++sq; return "'";
case "\0": return "\\0";
}
return s;
});
if (options.ascii_only) str = to_ascii(str);
if (dq > sq) return "'" + str.replace(/\x27/g, "\\'") + "'";
else return '"' + str.replace(/\x22/g, '\\"') + '"';
};
function print(str) {
var a = str.split(/\r?\n/), n = a.length;
current_line += n;
current_col += a[n - 1].length;
OUTPUT += str;
};
function encode_string(str) {
var ret = make_string(str);
if (options.inline_script)
ret = ret.replace(/<\x2fscript([>\/\t\n\f\r ])/gi, "<\\/script$1");
return ret;
};
function make_name(name) {
name = name.toString();
if (options.ascii_only)
name = to_ascii(name);
return name;
};
function make_indent(line) {
if (line == null)
line = "";
line = repeat_string(" ", options.indent_start + indentation) + line;
return line;
};
function with_indent(col, cont) {
if (col === true) col = next_indent();
var save_indentation = indentation;
indentation = col;
var ret = cont();
indentation = save_indentation;
return ret;
};
function indent() {
print(make_indent());
};
function newline() {
print("\n");
};
function next_indent() {
return indentation + options.indent_level;
};
function with_block(cont, beautify) {
var ret;
print("{");
with_indent(next_indent(), function(){
if (beautify) newline();
ret = cont();
if (beautify) newline();
});
if (beautify) indent();
print("}");
return ret;
};
function with_parens(cont, beautify) {
print("(");
var ret = with_indent(current_col, cont);
print(")");
return ret;
};
return {
get : function() { return OUTPUT },
indent : indent,
newline : newline,
print : print,
string : function(str) { print(encode_string(str)) },
with_indent : with_indent,
with_block : with_block,
with_parens : with_parens,
options : function() { return options },
line : function() { return current_line },
col : function() { return current_col },
pos : function() { return OUTPUT.length }
};
};
|
