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
|
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
* Date: 22 October 2001
*
* SUMMARY: Regression test for Bugzilla bug 105972:
* "/^.*?$/ will not match anything"
*
* See http://bugzilla.mozilla.org/show_bug.cgi?id=105972
*/
//-----------------------------------------------------------------------------
var i = 0;
var BUGNUMBER = 105972;
var summary = 'Regression test for Bugzilla bug 105972';
var cnEmptyString = '';
var status = '';
var statusmessages = new Array();
var pattern = '';
var patterns = new Array();
var string = '';
var strings = new Array();
var actualmatch = '';
var actualmatches = new Array();
var expectedmatch = '';
var expectedmatches = new Array();
/*
* The bug: this match was coming up null in Rhino and SpiderMonkey.
* It should match the whole string. The reason:
*
* The * operator is greedy, but *? is non-greedy: it will stop
* at the simplest match it can find. But the pattern here asks us
* to match till the end of the string. So the simplest match must
* go all the way out to the end, and *? has no choice but to do it.
*/
status = inSection(1);
pattern = /^.*?$/;
string = 'Hello World';
actualmatch = string.match(pattern);
expectedmatch = Array(string);
addThis();
/*
* Leave off the '$' condition - here we expect the empty string.
* Unlike the above pattern, we don't have to match till the end of
* the string, so the non-greedy operator *? doesn't try to...
*/
status = inSection(2);
pattern = /^.*?/;
string = 'Hello World';
actualmatch = string.match(pattern);
expectedmatch = Array(cnEmptyString);
addThis();
/*
* Try '$' combined with an 'or' operator.
*
* The operator *? will consume the string from left to right,
* attempting to satisfy the condition (:|$). When it hits ':',
* the match will stop because the operator *? is non-greedy.
*
* The submatch $1 = (:|$) will contain the ':'
*/
status = inSection(3);
pattern = /^.*?(:|$)/;
string = 'Hello: World';
actualmatch = string.match(pattern);
expectedmatch = Array('Hello:', ':');
addThis();
/*
* Again, '$' combined with an 'or' operator.
*
* The operator * will consume the string from left to right,
* attempting to satisfy the condition (:|$). When it hits ':',
* the match will not stop since * is greedy. The match will
* continue until it hits $, the end-of-string boundary.
*
* The submatch $1 = (:|$) will contain the empty string
* conceived to exist at the end-of-string boundary.
*/
status = inSection(4);
pattern = /^.*(:|$)/;
string = 'Hello: World';
actualmatch = string.match(pattern);
expectedmatch = Array(string, cnEmptyString);
addThis();
//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------
function addThis()
{
statusmessages[i] = status;
patterns[i] = pattern;
strings[i] = string;
actualmatches[i] = actualmatch;
expectedmatches[i] = expectedmatch;
i++;
}
function test()
{
printBugNumber(BUGNUMBER);
printStatus (summary);
testRegExp(statusmessages, patterns, strings, actualmatches, expectedmatches);
}
|
