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 description( 25 "This page tests assertions followed by quantifiers." 26 ); 27 28 var regexp; 29 30 regexp = /(?=a){0}/gm; 31 debug("\nTesting regexp: " + regexp); 32 shouldBeTrue("regexp.test('a')"); 33 shouldBe("regexp.lastIndex", "0"); 34 35 regexp = /(?=a){1}/gm; 36 debug("\nTesting regexp: " + regexp); 37 shouldBeTrue("regexp.test('a')"); 38 shouldBe("regexp.lastIndex", "0"); 39 40 regexp = /(?!a){0}/gm; 41 debug("\nTesting regexp: " + regexp); 42 shouldBeTrue("regexp.test('b')"); 43 shouldBe("regexp.lastIndex", "0"); 44 45 regexp = /(?!a){1}/gm; 46 debug("\nTesting regexp: " + regexp); 47 shouldBeTrue("regexp.test('b')"); 48 shouldBe("regexp.lastIndex", "0"); 49 50 shouldBeTrue('/^(?=a)?b$/.test("b")'); 51
