Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 1 | // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | // Tests from http://blog.stevenlevithan.com/archives/npcg-javascript |
| 29 | |
| 30 | assertEquals(true, /(x)?\1y/.test("y")); |
| 31 | assertEquals(["y", undefined], /(x)?\1y/.exec("y")); |
| 32 | assertEquals(["y", undefined], /(x)?y/.exec("y")); |
| 33 | assertEquals(["y", undefined], "y".match(/(x)?\1y/)); |
| 34 | assertEquals(["y", undefined], "y".match(/(x)?y/)); |
| 35 | assertEquals(["y"], "y".match(/(x)?\1y/g)); |
| 36 | assertEquals(["", undefined, ""], "y".split(/(x)?\1y/)); |
| 37 | assertEquals(["", undefined, ""], "y".split(/(x)?y/)); |
| 38 | assertEquals(0, "y".search(/(x)?\1y/)); |
| 39 | assertEquals("z", "y".replace(/(x)?\1y/, "z")); |
| 40 | assertEquals("", "y".replace(/(x)?y/, "$1")); |
| 41 | assertEquals("undefined", "y".replace(/(x)?\1y/, |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 42 | function($0, $1){ |
| 43 | return String($1); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 44 | })); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 45 | assertEquals("undefined", "y".replace(/(x)?y/, |
| 46 | function($0, $1){ |
| 47 | return String($1); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 48 | })); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 49 | assertEquals("undefined", "y".replace(/(x)?y/, |
| 50 | function($0, $1){ |
| 51 | return $1; |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 52 | })); |
| 53 | |
| 54 | // See https://bugzilla.mozilla.org/show_bug.cgi?id=476146 |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 55 | assertEquals(["bbc", "b"], /^(b+|a){1,2}?bc/.exec("bbc")); |
| 56 | assertEquals(["bbaa", "a", "", "a"], |
| 57 | /((\3|b)\2(a)){2,}/.exec("bbaababbabaaaaabbaaaabba")); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 58 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 59 | // From crbug.com/128821 - don't hang: |
| 60 | "".match(/((a|i|A|I|u|o|U|O)(s|c|b|c|d|f|g|h|j|k|l|m|n|p|q|r|s|t|v|w|x|y|z|B|C|D|F|G|H|J|K|L|M|N|P|Q|R|S|T|V|W|X|Y|Z)*) de\/da([.,!?\s]|$)/); |