1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/ecma_3/RegExp/regress-209919.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,140 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 + *
1.11 + * Date: 19 June 2003
1.12 + * SUMMARY: Testing regexp submatches with quantifiers
1.13 + *
1.14 + * See http://bugzilla.mozilla.org/show_bug.cgi?id=209919
1.15 + *
1.16 + */
1.17 +//-----------------------------------------------------------------------------
1.18 +var i = 0;
1.19 +var BUGNUMBER = 209919;
1.20 +var summary = 'Testing regexp submatches with quantifiers';
1.21 +var status = '';
1.22 +var statusmessages = new Array();
1.23 +var pattern = '';
1.24 +var patterns = new Array();
1.25 +var string = '';
1.26 +var strings = new Array();
1.27 +var actualmatch = '';
1.28 +var actualmatches = new Array();
1.29 +var expectedmatch = '';
1.30 +var expectedmatches = new Array();
1.31 +
1.32 +
1.33 +/*
1.34 + * Waldemar: "ECMA-262 15.10.2.5, third algorithm, step 2.1 states that
1.35 + * once the minimum repeat count (which is 0 for *, 1 for +, etc.) has
1.36 + * been satisfied, an atom being repeated must not match the empty string."
1.37 + *
1.38 + * In this example, the minimum repeat count is 0, so the last thing the
1.39 + * capturing parens is permitted to contain is the 'a'. It may NOT go on
1.40 + * to capture the '' at the $ position of 'a', even though '' satifies
1.41 + * the condition b*
1.42 + *
1.43 + */
1.44 +status = inSection(1);
1.45 +string = 'a';
1.46 +pattern = /(a|b*)*/;
1.47 +actualmatch = string.match(pattern);
1.48 +expectedmatch = Array(string, 'a');
1.49 +addThis();
1.50 +
1.51 +
1.52 +/*
1.53 + * In this example, the minimum repeat count is 5, so the capturing parens
1.54 + * captures the 'a', then goes on to capture the '' at the $ position of 'a'
1.55 + * 4 times before it has to stop. Therefore the last thing it contains is ''.
1.56 + */
1.57 +status = inSection(2);
1.58 +string = 'a';
1.59 +pattern = /(a|b*){5,}/;
1.60 +actualmatch = string.match(pattern);
1.61 +expectedmatch = Array(string, '');
1.62 +addThis();
1.63 +
1.64 +
1.65 +/*
1.66 + * Reduction of the above examples to contain only the condition b*
1.67 + * inside the capturing parens. This can be even harder to grasp!
1.68 + *
1.69 + * The global match is the '' at the ^ position of 'a', but the parens
1.70 + * is NOT permitted to capture it since the minimum repeat count is 0!
1.71 + */
1.72 +status = inSection(3);
1.73 +string = 'a';
1.74 +pattern = /(b*)*/;
1.75 +actualmatch = string.match(pattern);
1.76 +expectedmatch = Array('', undefined);
1.77 +addThis();
1.78 +
1.79 +
1.80 +/*
1.81 + * Here we have used the + quantifier (repeat count 1) outside the parens.
1.82 + * Therefore the parens must capture at least once before stopping, so it
1.83 + * does capture the '' this time -
1.84 + */
1.85 +status = inSection(4);
1.86 +string = 'a';
1.87 +pattern = /(b*)+/;
1.88 +actualmatch = string.match(pattern);
1.89 +expectedmatch = Array('', '');
1.90 +addThis();
1.91 +
1.92 +
1.93 +/*
1.94 + * More complex examples -
1.95 + */
1.96 +pattern = /^\-?(\d{1,}|\.{0,})*(\,\d{1,})?$/;
1.97 +
1.98 +status = inSection(5);
1.99 +string = '100.00';
1.100 +actualmatch = string.match(pattern);
1.101 +expectedmatch = Array(string, '00', undefined);
1.102 +addThis();
1.103 +
1.104 +status = inSection(6);
1.105 +string = '100,00';
1.106 +actualmatch = string.match(pattern);
1.107 +expectedmatch = Array(string, '100', ',00');
1.108 +addThis();
1.109 +
1.110 +status = inSection(7);
1.111 +string = '1.000,00';
1.112 +actualmatch = string.match(pattern);
1.113 +expectedmatch = Array(string, '000', ',00');
1.114 +addThis();
1.115 +
1.116 +
1.117 +
1.118 +
1.119 +//-----------------------------------------------------------------------------
1.120 +test();
1.121 +//-----------------------------------------------------------------------------
1.122 +
1.123 +
1.124 +
1.125 +function addThis()
1.126 +{
1.127 + statusmessages[i] = status;
1.128 + patterns[i] = pattern;
1.129 + strings[i] = string;
1.130 + actualmatches[i] = actualmatch;
1.131 + expectedmatches[i] = expectedmatch;
1.132 + i++;
1.133 +}
1.134 +
1.135 +
1.136 +function test()
1.137 +{
1.138 + enterFunc ('test');
1.139 + printBugNumber(BUGNUMBER);
1.140 + printStatus (summary);
1.141 + testRegExp(statusmessages, patterns, strings, actualmatches, expectedmatches);
1.142 + exitFunc ('test');
1.143 +}
