js/src/tests/ecma_3/RegExp/15.10.6.2-1.js@6474c204b198
js/src/tests/ecma_3/RegExp/15.10.6.2-1.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 /*
7 * Date: 23 October 2001
8 *
9 * SUMMARY: Testing regexps with the global flag set.
10 * NOT every substring fitting the given pattern will be matched.
11 * The parent string is CONSUMED as successive matches are found.
12 *
13 * From the ECMA-262 Final spec:
14 *
15 * 15.10.6.2 RegExp.prototype.exec(string)
16 * Performs a regular expression match of string against the regular
17 * expression and returns an Array object containing the results of
18 * the match, or null if the string did not match.
19 *
20 * The string ToString(string) is searched for an occurrence of the
21 * regular expression pattern as follows:
22 *
23 * 1. Let S be the value of ToString(string).
24 * 2. Let length be the length of S.
25 * 3. Let lastIndex be the value of the lastIndex property.
26 * 4. Let i be the value of ToInteger(lastIndex).
27 * 5. If the global property is false, let i = 0.
28 * 6. If i < 0 or i > length then set lastIndex to 0 and return null.
29 * 7. Call [[Match]], giving it the arguments S and i.
30 * If [[Match]] returned failure, go to step 8;
31 * otherwise let r be its State result and go to step 10.
32 * 8. Let i = i+1.
33 * 9. Go to step 6.
34 * 10. Let e be r's endIndex value.
35 * 11. If the global property is true, set lastIndex to e.
36 *
37 * etc.
38 *
39 *
40 * So when the global flag is set, |lastIndex| is incremented every time
41 * there is a match; not from i to i+1, but from i to "endIndex" e:
42 *
43 * e = (index of last input character matched so far by the pattern) + 1
44 *
45 * Thus in the example below, the first endIndex e occurs after the
46 * first match 'a b'. The next match will begin AFTER this, and so
47 * will NOT be 'b c', but rather 'c d'. Similarly, 'd e' won't be matched.
48 */
49 //-----------------------------------------------------------------------------
50 var i = 0;
51 var BUGNUMBER = '(none)';
52 var summary = 'Testing regexps with the global flag set';
53 var status = '';
54 var statusmessages = new Array();
55 var pattern = '';
56 var patterns = new Array();
57 var string = '';
58 var strings = new Array();
59 var actualmatch = '';
60 var actualmatches = new Array();
61 var expectedmatch = '';
62 var expectedmatches = new Array();
65 status = inSection(1);
66 string = 'a b c d e';
67 pattern = /\w\s\w/g;
68 actualmatch = string.match(pattern);
69 expectedmatch = ['a b','c d']; // see above explanation -
70 addThis();
73 status = inSection(2);
74 string = '12345678';
75 pattern = /\d\d\d/g;
76 actualmatch = string.match(pattern);
77 expectedmatch = ['123','456'];
78 addThis();
82 //-----------------------------------------------------------------------------
83 test();
84 //-----------------------------------------------------------------------------
88 function addThis()
89 {
90 statusmessages[i] = status;
91 patterns[i] = pattern;
92 strings[i] = string;
93 actualmatches[i] = actualmatch;
94 expectedmatches[i] = expectedmatch;
95 i++;
96 }
99 function test()
100 {
101 enterFunc ('test');
102 printBugNumber(BUGNUMBER);
103 printStatus (summary);
104 testRegExp(statusmessages, patterns, strings, actualmatches, expectedmatches);
105 exitFunc ('test');
106 }
