1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/js/src/tests/ecma_3/RegExp/regress-87231.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,111 @@ 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 + * Date: 22 June 2001 1.11 + * 1.12 + * SUMMARY: Regression test for Bugzilla bug 87231: 1.13 + * "Regular expression /(A)?(A.*)/ picks 'A' twice" 1.14 + * 1.15 + * See http://bugzilla.mozilla.org/show_bug.cgi?id=87231 1.16 + * Key case: 1.17 + * 1.18 + * pattern = /^(A)?(A.*)$/; 1.19 + * string = 'A'; 1.20 + * expectedmatch = Array('A', '', 'A'); 1.21 + * 1.22 + * 1.23 + * We expect the 1st subexpression (A)? NOT to consume the single 'A'. 1.24 + * Recall that "?" means "match 0 or 1 times". Here, it should NOT do 1.25 + * greedy matching: it should match 0 times instead of 1. This allows 1.26 + * the 2nd subexpression to make the only match it can: the single 'A'. 1.27 + * Such "altruism" is the only way there can be a successful global match... 1.28 + */ 1.29 +//----------------------------------------------------------------------------- 1.30 +var i = 0; 1.31 +var BUGNUMBER = 87231; 1.32 +var cnEmptyString = ''; 1.33 +var summary = 'Testing regular expression /(A)?(A.*)/'; 1.34 +var status = ''; 1.35 +var statusmessages = new Array(); 1.36 +var pattern = ''; 1.37 +var patterns = new Array(); 1.38 +var string = ''; 1.39 +var strings = new Array(); 1.40 +var actualmatch = ''; 1.41 +var actualmatches = new Array(); 1.42 +var expectedmatch = ''; 1.43 +var expectedmatches = new Array(); 1.44 + 1.45 + 1.46 +pattern = /^(A)?(A.*)$/; 1.47 +status = inSection(1); 1.48 +string = 'AAA'; 1.49 +actualmatch = string.match(pattern); 1.50 +expectedmatch = Array('AAA', 'A', 'AA'); 1.51 +addThis(); 1.52 + 1.53 +status = inSection(2); 1.54 +string = 'AA'; 1.55 +actualmatch = string.match(pattern); 1.56 +expectedmatch = Array('AA', 'A', 'A'); 1.57 +addThis(); 1.58 + 1.59 +status = inSection(3); 1.60 +string = 'A'; 1.61 +actualmatch = string.match(pattern); 1.62 +expectedmatch = Array('A', undefined, 'A'); // 'altruistic' case: see above 1.63 +addThis(); 1.64 + 1.65 + 1.66 +pattern = /(A)?(A.*)/; 1.67 +var strL = 'zxcasd;fl\\\ ^'; 1.68 +var strR = 'aaAAaaaf;lrlrzs'; 1.69 + 1.70 +status = inSection(4); 1.71 +string = strL + 'AAA' + strR; 1.72 +actualmatch = string.match(pattern); 1.73 +expectedmatch = Array('AAA' + strR, 'A', 'AA' + strR); 1.74 +addThis(); 1.75 + 1.76 +status = inSection(5); 1.77 +string = strL + 'AA' + strR; 1.78 +actualmatch = string.match(pattern); 1.79 +expectedmatch = Array('AA' + strR, 'A', 'A' + strR); 1.80 +addThis(); 1.81 + 1.82 +status = inSection(6); 1.83 +string = strL + 'A' + strR; 1.84 +actualmatch = string.match(pattern); 1.85 +expectedmatch = Array('A' + strR, undefined, 'A' + strR); // 'altruistic' case: see above 1.86 +addThis(); 1.87 + 1.88 + 1.89 + 1.90 +//------------------------------------------------------------------------------------------------- 1.91 +test(); 1.92 +//------------------------------------------------------------------------------------------------- 1.93 + 1.94 + 1.95 + 1.96 +function addThis() 1.97 +{ 1.98 + statusmessages[i] = status; 1.99 + patterns[i] = pattern; 1.100 + strings[i] = string; 1.101 + actualmatches[i] = actualmatch; 1.102 + expectedmatches[i] = expectedmatch; 1.103 + i++; 1.104 +} 1.105 + 1.106 + 1.107 +function test() 1.108 +{ 1.109 + enterFunc ('test'); 1.110 + printBugNumber(BUGNUMBER); 1.111 + printStatus (summary); 1.112 + testRegExp(statusmessages, patterns, strings, actualmatches, expectedmatches); 1.113 + exitFunc ('test'); 1.114 +}