1 # Copyright 2013 the V8 project authors. All rights reserved. 2 # Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3 # 4 # Redistribution and use in source and binary forms, with or without 5 # modification, are permitted provided that the following conditions 6 # are met: 7 # 1. Redistributions of source code must retain the above copyright 8 # notice, this list of conditions and the following disclaimer. 9 # 2. Redistributions in binary form must reproduce the above copyright 10 # notice, this list of conditions and the following disclaimer in the 11 # documentation and/or other materials provided with the distribution. 12 # 13 # THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 # DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 # ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24 Test for behavior of non-capturing groups, as described in a blog post by Steven Levithan and bug 14931. 25 26 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". 27 28 29 PASS /(x)?\1y/.test("y") is true 30 PASS /(x)?\1y/.exec("y") is ["y", undefined] 31 PASS /(x)?y/.exec("y") is ["y", undefined] 32 PASS "y".match(/(x)?\1y/) is ["y", undefined] 33 PASS "y".match(/(x)?y/) is ["y", undefined] 34 PASS "y".match(/(x)?\1y/g) is ["y"] 35 PASS "y".split(/(x)?\1y/) is ["", undefined, ""] 36 PASS "y".split(/(x)?y/) is ["", undefined, ""] 37 PASS "y".search(/(x)?\1y/) is 0 38 PASS "y".replace(/(x)?\1y/, "z") is "z" 39 PASS "y".replace(/(x)?y/, "$1") is "" 40 PASS "y".replace(/(x)?\1y/, function($0, $1){ return String($1); }) is "undefined" 41 PASS "y".replace(/(x)?y/, function($0, $1){ return String($1); }) is "undefined" 42 PASS "y".replace(/(x)?y/, function($0, $1){ return $1; }) is "undefined" 43 PASS successfullyParsed is true 44 45 TEST COMPLETE 46 47
