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61 lines
2.9 KiB
JavaScript
61 lines
2.9 KiB
JavaScript
// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Tests from http://blog.stevenlevithan.com/archives/npcg-javascript
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assertEquals(true, /(x)?\1y/.test("y"));
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assertEquals(["y", undefined], /(x)?\1y/.exec("y"));
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assertEquals(["y", undefined], /(x)?y/.exec("y"));
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assertEquals(["y", undefined], "y".match(/(x)?\1y/));
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assertEquals(["y", undefined], "y".match(/(x)?y/));
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assertEquals(["y"], "y".match(/(x)?\1y/g));
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assertEquals(["", undefined, ""], "y".split(/(x)?\1y/));
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assertEquals(["", undefined, ""], "y".split(/(x)?y/));
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assertEquals(0, "y".search(/(x)?\1y/));
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assertEquals("z", "y".replace(/(x)?\1y/, "z"));
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assertEquals("", "y".replace(/(x)?y/, "$1"));
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assertEquals("undefined", "y".replace(/(x)?\1y/,
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function($0, $1){
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return String($1);
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}));
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assertEquals("undefined", "y".replace(/(x)?y/,
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function($0, $1){
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return String($1);
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}));
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assertEquals("undefined", "y".replace(/(x)?y/,
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function($0, $1){
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return $1;
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}));
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=476146
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assertEquals(["bbc", "b"], /^(b+|a){1,2}?bc/.exec("bbc"));
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assertEquals(["bbaa", "a", "", "a"],
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/((\3|b)\2(a)){2,}/.exec("bbaababbabaaaaabbaaaabba"));
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// From crbug.com/128821 - don't hang:
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"".match(/((a|i|A|I|u|o|U|O)(s|c|b|c|d|f|g|h|j|k|l|m|n|p|q|r|s|t|v|w|x|y|z|B|C|D|F|G|H|J|K|L|M|N|P|Q|R|S|T|V|W|X|Y|Z)*) de\/da([.,!?\s]|$)/);
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