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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/RegExp/regress-105972.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/RegExp/regress-105972.js | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/js/src/tests/non262/RegExp/regress-105972.js b/js/src/tests/non262/RegExp/regress-105972.js new file mode 100644 index 0000000000..ab6d46ba47 --- /dev/null +++ b/js/src/tests/non262/RegExp/regress-105972.js @@ -0,0 +1,121 @@ +/* -*- 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); +} |