// 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("This page tests handling of parentheses subexpressions."); var regexp1 = /(a|A)(b|B)/; shouldBe("regexp1.exec('abc')", "['ab','a','b']"); var regexp2 = /(a((b)|c|d))e/; shouldBe("regexp2.exec('abacadabe')", "['abe','ab','b','b']"); var regexp3 = /(a(b|(c)|d))e/; shouldBe("regexp3.exec('abacadabe')", "['abe','ab','b',undefined]"); var regexp4 = /(a(b|c|(d)))e/; shouldBe("regexp4.exec('abacadabe')", "['abe','ab','b',undefined]"); var regexp5 = /(a((b)|(c)|(d)))e/; shouldBe("regexp5.exec('abacadabe')", "['abe','ab','b','b',undefined,undefined]"); var regexp6 = /(a((b)|(c)|(d)))/; shouldBe("regexp6.exec('abcde')", "['ab','ab','b','b',undefined,undefined]"); var regexp7 = /(a(b)??)??c/; shouldBe("regexp7.exec('abc')", "['abc','ab','b']"); var regexp8 = /(a|(e|q))(x|y)/; shouldBe("regexp8.exec('bcaddxqy')" , "['qy','q','q','y']"); var regexp9 = /((t|b)?|a)$/; shouldBe("regexp9.exec('asdfjejgsdflaksdfjkeljghkjea')", "['a','a',undefined]"); var regexp10 = /(?:h|e?(?:t|b)?|a?(?:t|b)?)(?:$)/; shouldBe("regexp10.exec('asdfjejgsdflaksdfjkeljghat')", "['at']"); var regexp11 = /([Jj]ava([Ss]cript)?)\sis\s(fun\w*)/; shouldBeNull("regexp11.exec('Developing with JavaScript is dangerous, do not try it without assistance')"); var regexp12 = /(?:(.+), )?(.+), (..) to (?:(.+), )?(.+), (..)/; shouldBe("regexp12.exec('Seattle, WA to Buckley, WA')", "['Seattle, WA to Buckley, WA', undefined, 'Seattle', 'WA', undefined, 'Buckley', 'WA']"); var regexp13 = /(A)?(A.*)/; shouldBe("regexp13.exec('zxcasd;fl\ ^AaaAAaaaf;lrlrzs')", "['AaaAAaaaf;lrlrzs',undefined,'AaaAAaaaf;lrlrzs']"); var regexp14 = /(a)|(b)/; shouldBe("regexp14.exec('b')", "['b',undefined,'b']"); var regexp15 = /^(?!(ab)de|x)(abd)(f)/; shouldBe("regexp15.exec('abdf')", "['abdf',undefined,'abd','f']"); var regexp16 = /(a|A)(b|B)/; shouldBe("regexp16.exec('abc')", "['ab','a','b']"); var regexp17 = /(a|d|q|)x/i; shouldBe("regexp17.exec('bcaDxqy')", "['Dx','D']"); var regexp18 = /^.*?(:|$)/; shouldBe("regexp18.exec('Hello: World')", "['Hello:',':']"); var regexp19 = /(ab|^.{0,2})bar/; shouldBe("regexp19.exec('barrel')", "['bar','']"); var regexp20 = /(?:(?!foo)...|^.{0,2})bar(.*)/; shouldBe("regexp20.exec('barrel')", "['barrel','rel']"); shouldBe("regexp20.exec('2barrel')", "['2barrel','rel']"); var regexp21 = /([a-g](b|B)|xyz)/; shouldBe("regexp21.exec('abc')", "['ab','ab','b']"); var regexp22 = /(?:^|;)\s*abc=([^;]*)/; shouldBeNull("regexp22.exec('abcdlskfgjdslkfg')"); var regexp23 = /"[^<"]*"|'[^<']*'/; shouldBe("regexp23.exec('"\'\s]*)?)|(/?>)|.[^\w\s>]*)'); shouldBe("regexp33.exec('> ')","['>',undefined,undefined,'>']"); var regexp34 = /(?:^|\b)btn-\S+/; shouldBeNull("regexp34.exec('xyz123')"); shouldBe("regexp34.exec('btn-abc')","['btn-abc']"); shouldBeNull("regexp34.exec('btn- abc')"); shouldBeNull("regexp34.exec('XXbtn-abc')"); shouldBe("regexp34.exec('XX btn-abc')","['btn-abc']"); var regexp35 = /^((a|b)(x|xxx)|)$/; shouldBe("regexp35.exec('ax')", "['ax','ax','a','x']"); shouldBeNull("regexp35.exec('axx')"); shouldBe("regexp35.exec('axxx')", "['axxx','axxx','a','xxx']"); shouldBe("regexp35.exec('bx')", "['bx','bx','b','x']"); shouldBeNull("regexp35.exec('bxx')"); shouldBe("regexp35.exec('bxxx')", "['bxxx','bxxx','b','xxx']"); var regexp36 = /^((\/|\.|\-)(\d\d|\d\d\d\d)|)$/; shouldBe("regexp36.exec('/2011')", "['/2011','/2011','/','2011']"); shouldBe("regexp36.exec('/11')", "['/11','/11','/','11']"); shouldBeNull("regexp36.exec('/123')"); var regexp37 = /^([1][0-2]|[0]\d|\d)(\/|\.|\-)([0-2]\d|[3][0-1]|\d)((\/|\.|\-)(\d\d|\d\d\d\d)|)$/; shouldBe("regexp37.exec('7/4/1776')", "['7/4/1776','7','/','4','/1776','/','1776']"); shouldBe("regexp37.exec('07-04-1776')", "['07-04-1776','07','-','04','-1776','-','1776']"); var regexp38 = /^(z|(x|xx)|b|)$/; shouldBe("regexp38.exec('xx')", "['xx','xx','xx']"); shouldBe("regexp38.exec('b')", "['b','b',undefined]"); shouldBe("regexp38.exec('z')", "['z','z',undefined]"); shouldBe("regexp38.exec('')", "['','',undefined]"); var regexp39 = /(8|((?=P)))?/; shouldBe("regexp39.exec('')", "['',undefined,undefined]"); shouldBe("regexp39.exec('8')", "['8','8',undefined]"); shouldBe("regexp39.exec('zP')", "['',undefined,undefined]"); var regexp40 = /((8)|((?=P){4}))?()/; shouldBe("regexp40.exec('')", "['',undefined,undefined,undefined,'']"); shouldBe("regexp40.exec('8')", "['8','8','8',undefined,'']"); shouldBe("regexp40.exec('zPz')", "['',undefined,undefined,undefined,'']"); shouldBe("regexp40.exec('zPPz')", "['',undefined,undefined,undefined,'']"); shouldBe("regexp40.exec('zPPPz')", "['',undefined,undefined,undefined,'']"); shouldBe("regexp40.exec('zPPPPz')", "['',undefined,undefined,undefined,'']"); var regexp41 = /(([\w\-]+:\/\/?|www[.])[^\s()<>]+(?:([\w\d]+)|([^\[:punct:\]\s()<>\W]|\/)))/; shouldBe("regexp41.exec('Here is a link: http://www.acme.com/our_products/index.html. That is all we want!')", "['http://www.acme.com/our_products/index.html','http://www.acme.com/our_products/index.html','http://','l',undefined]"); var regexp42 = /((?:(4)?))?/; shouldBe("regexp42.exec('')", "['',undefined,undefined]"); shouldBe("regexp42.exec('4')", "['4','4','4']"); shouldBe("regexp42.exec('4321')", "['4','4','4']"); shouldBeTrue("/(?!(?=r{0}){2,})|((z)?)?/gi.test('')"); var regexp43 = /(?!(?:\1+s))/; shouldBe("regexp43.exec('SSS')", "['']"); var regexp44 = /(?!(?:\3+(s+?)))/g; shouldBe("regexp44.exec('SSS')", "['',undefined]"); var regexp45 = /((?!(?:|)v{2,}|))/; shouldBeNull("regexp45.exec('vt')"); var regexp46 = /(w)(?:5{3}|())|pk/; shouldBeNull("regexp46.exec('5')"); shouldBe("regexp46.exec('pk')", "['pk',undefined,undefined]"); shouldBe("regexp46.exec('Xw555')", "['w555','w',undefined]"); shouldBe("regexp46.exec('Xw55pk5')", "['w','w','']"); var regexp47 = /(.*?)(?:(?:\?(.*?)?)?)(?:(?:#)?)$/; shouldBe("regexp47.exec('/www.acme.com/this/is/a/path/file.txt')", "['/www.acme.com/this/is/a/path/file.txt','/www.acme.com/this/is/a/path/file.txt',undefined]"); var regexp48 = /^(?:(\w+):\/*([\w\.\-\d]+)(?::(\d+)|)(?=(?:\/|$))|)(?:$|\/?(.*?)(?:\?(.*?)?|)(?:#(.*)|)$)/; /* The regexp on the prior line confuses Xcode syntax highlighting, this coment fixes it! */ shouldBe("regexp48.exec('http://www.acme.com/this/is/a/path/file.txt')", "['http://www.acme.com/this/is/a/path/file.txt','http','www.acme.com',undefined,'this/is/a/path/file.txt',undefined,undefined]"); var regexp49 = /(?:([^:]*?)(?:(?:\?(.*?)?)?)(?:(?:#)?)$)|(?:^(?:(\w+):\/*([\w\.\-\d]+)(?::(\d+)|)(?=(?:\/|$))|)(?:$|\/?(.*?)(?:\?(.*?)?|)(?:#(.*)|)$))/; /* The regexp on the prior line confuses Xcode syntax highlighting, this coment fixes it! */ shouldBe("regexp49.exec('http://www.acme.com/this/is/a/path/file.txt')", "['http://www.acme.com/this/is/a/path/file.txt',undefined,undefined,'http','www.acme.com',undefined,'this/is/a/path/file.txt',undefined,undefined]"); var regexp50 = /((a)b{28,}c|d)x/; shouldBeNull("regexp50.exec('((a)b{28,}c|d)x')"); shouldBe("regexp50.exec('abbbbbbbbbbbbbbbbbbbbbbbbbbbbcx')", "['abbbbbbbbbbbbbbbbbbbbbbbbbbbbcx', 'abbbbbbbbbbbbbbbbbbbbbbbbbbbbc', 'a']"); shouldBe("regexp50.exec('dx')", "['dx', 'd', undefined]"); var s = "((.\s{-}).{28,}\P{Yi}?{,30}\|.)\x9e{-,}\P{Any}"; var regexp51 = new RegExp(s); shouldBeNull("regexp51.exec('abc')"); shouldBe("regexp51.exec(s)", "[')\x9e{-,}P{Any}',')',undefined]"); var regexp52 = /(Rob)|(Bob)|(Robert)|(Bobby)/; shouldBe("'Hi Bob'.match(regexp52)", "['Bob',undefined,'Bob',undefined,undefined]"); // Test cases discovered by fuzzing that crashed the compiler. var regexp53 = /(?=(?:(?:(gB)|(?!cs|<))((?=(?!v6){0,})))|(?=#)+?)/m; shouldBe("regexp53.exec('#')", "['',undefined,'']"); var regexp54 = /((?:(?:()|(?!))((?=(?!))))|())/m; shouldBe("regexp54.exec('#')", "['','',undefined,undefined,'']"); var regexp55 = /(?:(?:(?:a?|(?:))((?:)))|a?)/m; shouldBe("regexp55.exec('#')", "['','']"); // Test evaluation order of empty subpattern alternatives. var regexp56 = /(|a)/; shouldBe("regexp56.exec('a')", "['','']"); var regexp57 = /(a|)/; shouldBe("regexp57.exec('a')", "['a','a']"); // Tests that non-greedy repeat quantified parentheses will backtrack through multiple frames of subpattern matches. var regexp58 = /a|b(?:[^b])*?c/; shouldBe("regexp58.exec('badbc')", "['a']"); var regexp59 = /(X(?:.(?!X))*?Y)|(Y(?:.(?!Y))*?Z)/g; shouldBe("'Y aaa X Match1 Y aaa Y Match2 Z'.match(regexp59)", "['X Match1 Y','Y Match2 Z']");