1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/ecma_3/RegExp/regress-105972.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,123 @@
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 October 2001
1.11 + *
1.12 + * SUMMARY: Regression test for Bugzilla bug 105972:
1.13 + * "/^.*?$/ will not match anything"
1.14 + *
1.15 + * See http://bugzilla.mozilla.org/show_bug.cgi?id=105972
1.16 + */
1.17 +//-----------------------------------------------------------------------------
1.18 +var i = 0;
1.19 +var BUGNUMBER = 105972;
1.20 +var summary = 'Regression test for Bugzilla bug 105972';
1.21 +var cnEmptyString = '';
1.22 +var status = '';
1.23 +var statusmessages = new Array();
1.24 +var pattern = '';
1.25 +var patterns = new Array();
1.26 +var string = '';
1.27 +var strings = new Array();
1.28 +var actualmatch = '';
1.29 +var actualmatches = new Array();
1.30 +var expectedmatch = '';
1.31 +var expectedmatches = new Array();
1.32 +
1.33 +
1.34 +/*
1.35 + * The bug: this match was coming up null in Rhino and SpiderMonkey.
1.36 + * It should match the whole string. The reason:
1.37 + *
1.38 + * The * operator is greedy, but *? is non-greedy: it will stop
1.39 + * at the simplest match it can find. But the pattern here asks us
1.40 + * to match till the end of the string. So the simplest match must
1.41 + * go all the way out to the end, and *? has no choice but to do it.
1.42 + */
1.43 +status = inSection(1);
1.44 +pattern = /^.*?$/;
1.45 +string = 'Hello World';
1.46 +actualmatch = string.match(pattern);
1.47 +expectedmatch = Array(string);
1.48 +addThis();
1.49 +
1.50 +
1.51 +/*
1.52 + * Leave off the '$' condition - here we expect the empty string.
1.53 + * Unlike the above pattern, we don't have to match till the end of
1.54 + * the string, so the non-greedy operator *? doesn't try to...
1.55 + */
1.56 +status = inSection(2);
1.57 +pattern = /^.*?/;
1.58 +string = 'Hello World';
1.59 +actualmatch = string.match(pattern);
1.60 +expectedmatch = Array(cnEmptyString);
1.61 +addThis();
1.62 +
1.63 +
1.64 +/*
1.65 + * Try '$' combined with an 'or' operator.
1.66 + *
1.67 + * The operator *? will consume the string from left to right,
1.68 + * attempting to satisfy the condition (:|$). When it hits ':',
1.69 + * the match will stop because the operator *? is non-greedy.
1.70 + *
1.71 + * The submatch $1 = (:|$) will contain the ':'
1.72 + */
1.73 +status = inSection(3);
1.74 +pattern = /^.*?(:|$)/;
1.75 +string = 'Hello: World';
1.76 +actualmatch = string.match(pattern);
1.77 +expectedmatch = Array('Hello:', ':');
1.78 +addThis();
1.79 +
1.80 +
1.81 +/*
1.82 + * Again, '$' combined with an 'or' operator.
1.83 + *
1.84 + * The operator * will consume the string from left to right,
1.85 + * attempting to satisfy the condition (:|$). When it hits ':',
1.86 + * the match will not stop since * is greedy. The match will
1.87 + * continue until it hits $, the end-of-string boundary.
1.88 + *
1.89 + * The submatch $1 = (:|$) will contain the empty string
1.90 + * conceived to exist at the end-of-string boundary.
1.91 + */
1.92 +status = inSection(4);
1.93 +pattern = /^.*(:|$)/;
1.94 +string = 'Hello: World';
1.95 +actualmatch = string.match(pattern);
1.96 +expectedmatch = Array(string, cnEmptyString);
1.97 +addThis();
1.98 +
1.99 +
1.100 +
1.101 +
1.102 +//-----------------------------------------------------------------------------
1.103 +test();
1.104 +//-----------------------------------------------------------------------------
1.105 +
1.106 +
1.107 +
1.108 +function addThis()
1.109 +{
1.110 + statusmessages[i] = status;
1.111 + patterns[i] = pattern;
1.112 + strings[i] = string;
1.113 + actualmatches[i] = actualmatch;
1.114 + expectedmatches[i] = expectedmatch;
1.115 + i++;
1.116 +}
1.117 +
1.118 +
1.119 +function test()
1.120 +{
1.121 + enterFunc ('test');
1.122 + printBugNumber(BUGNUMBER);
1.123 + printStatus (summary);
1.124 + testRegExp(statusmessages, patterns, strings, actualmatches, expectedmatches);
1.125 + exitFunc ('test');
1.126 +}
