| // Copyright 2013 the V8 project authors. All rights reserved. |
| // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions |
| // are met: |
| // 1. Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // 2. Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // |
| // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
| // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| description( |
| 'Test for behavior of non-capturing groups, as described in <a href="http://blog.stevenlevithan.com/archives/npcg-javascript">' + |
| 'a blog post by Steven Levithan</a> and <a href="http://bugs.webkit.org/show_bug.cgi?id=14931">bug 14931</a>.' |
| ); |
| |
| shouldBe('/(x)?\\1y/.test("y")', 'true'); |
| shouldBe('/(x)?\\1y/.exec("y")', '["y", undefined]'); |
| shouldBe('/(x)?y/.exec("y")', '["y", undefined]'); |
| shouldBe('"y".match(/(x)?\\1y/)', '["y", undefined]'); |
| shouldBe('"y".match(/(x)?y/)', '["y", undefined]'); |
| shouldBe('"y".match(/(x)?\\1y/g)', '["y"]'); |
| shouldBe('"y".split(/(x)?\\1y/)', '["", undefined, ""]'); |
| shouldBe('"y".split(/(x)?y/)', '["", undefined, ""]'); |
| shouldBe('"y".search(/(x)?\\1y/)', '0'); |
| shouldBe('"y".replace(/(x)?\\1y/, "z")', '"z"'); |
| shouldBe('"y".replace(/(x)?y/, "$1")', '""'); |
| shouldBe('"y".replace(/(x)?\\1y/, function($0, $1){ return String($1); })', '"undefined"'); |
| shouldBe('"y".replace(/(x)?y/, function($0, $1){ return String($1); })', '"undefined"'); |
| shouldBe('"y".replace(/(x)?y/, function($0, $1){ return $1; })', '"undefined"'); |
