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      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 'Test regular expression processing with alternatives.'
     26 );
     27 
     28 var s1 = "<p>content</p>";
     29 shouldBe('s1.match(/<((\\/([^>]+)>)|(([^>]+)>))/)', '["<p>","p>",undefined,undefined,"p>","p"]');
     30 shouldBe('s1.match(/<((ABC>)|(\\/([^>]+)>)|(([^>]+)>))/)', '["<p>","p>",undefined,undefined,undefined,"p>","p"]');
     31 shouldBe('s1.match(/<(a|\\/p|.+?)>/)', '["<p>","p"]');
     32 
     33 // Force YARR to use Interpreter by using iterative parentheses
     34 shouldBe('s1.match(/<((\\/([^>]+)>)|((([^>])+)>))/)', '["<p>","p>",undefined,undefined,"p>","p","p"]');
     35 shouldBe('s1.match(/<((ABC>)|(\\/([^>]+)>)|((([^>])+)>))/)', '["<p>","p>",undefined,undefined,undefined,"p>","p","p"]');
     36 shouldBe('s1.match(/<(a|\\/p|(.)+?)>/)', '["<p>","p","p"]');
     37 
     38 // Force YARR to use Interpreter by using backreference
     39 var s2 = "<p>p</p>";
     40 shouldBe('s2.match(/<((\\/([^>]+)>)|(([^>]+)>))\\5/)', '["<p>p","p>",undefined,undefined,"p>","p"]');
     41 shouldBe('s2.match(/<((ABC>)|(\\/([^>]+)>)|(([^>]+)>))\\6/)', '["<p>p","p>",undefined,undefined,undefined,"p>","p"]');
     42 shouldBe('s2.match(/<(a|\\/p|.+?)>\\1/)', '["<p>p","p"]');
     43