1// Copyright 2013 the V8 project authors. All rights reserved.
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23
24description(
25'Tests that regular expressions do not have extensions that diverge from the JavaScript specification. '
26+ 'Because WebKit originally used a copy of PCRE, various non-JavaScript regular expression features were historically present. '
27+ 'Also tests various related edge cases.'
28);
29
30shouldBe('/\\x{41}/.exec("yA1")', 'null');
31shouldBe('/[\\x{41}]/.exec("yA1").toString()', '"1"');
32shouldBe('/\\x1g/.exec("x1g").toString()', '"x1g"');
33shouldBe('/[\\x1g]/.exec("x").toString()', '"x"');
34shouldBe('/[\\x1g]/.exec("1").toString()', '"1"');
35shouldBe('/\\2147483648/.exec(String.fromCharCode(140) + "7483648").toString()', 'String.fromCharCode(140) + "7483648"');
36shouldBe('/\\4294967296/.exec("\\"94967296").toString()', '"\\"94967296"');
37shouldBe('/\\8589934592/.exec("\\\\8589934592").toString()', '"\\\\8589934592"');
38shouldBe('"\\nAbc\\n".replace(/(\\n)[^\\n]+$/, "$1")', '"\\nAbc\\n"');
39shouldBe('/x$/.exec("x\\n")', 'null');
40shouldThrow('/x++/');
41shouldBe('/[]]/.exec("]")', 'null');
42
43debug('');
44debug('Octal escape sequences are in Annex B of the standard.');
45debug('');
46
47shouldBe('/\\060/.exec("y01").toString()', '"0"');
48shouldBe('/[\\060]/.exec("y01").toString()', '"0"');
49shouldBe('/\\606/.exec("y06").toString()', '"06"');
50shouldBe('/[\\606]/.exec("y06").toString()', '"0"');
51shouldBe('/[\\606]/.exec("y6").toString()', '"6"');
52shouldBe('/\\101/.exec("yA1").toString()', '"A"');
53shouldBe('/[\\101]/.exec("yA1").toString()', '"A"');
54shouldBe('/\\1011/.exec("yA1").toString()', '"A1"');
55shouldBe('/[\\1011]/.exec("yA1").toString()', '"A"');
56shouldBe('/[\\1011]/.exec("y1").toString()', '"1"');
57shouldBe('/\\10q/.exec("y" + String.fromCharCode(8) + "q").toString()', 'String.fromCharCode(8) + "q"');
58shouldBe('/[\\10q]/.exec("y" + String.fromCharCode(8) + "q").toString()', 'String.fromCharCode(8)');
59shouldBe('/\\1q/.exec("y" + String.fromCharCode(1) + "q").toString()', 'String.fromCharCode(1) + "q"');
60shouldBe('/[\\1q]/.exec("y" + String.fromCharCode(1) + "q").toString()', 'String.fromCharCode(1)');
61shouldBe('/[\\1q]/.exec("yq").toString()', '"q"');
62shouldBe('/\\8q/.exec("\\\\8q").toString()', '"\\\\8q"');
63shouldBe('/[\\8q]/.exec("y8q").toString()', '"8"');
64shouldBe('/[\\8q]/.exec("yq").toString()', '"q"');
65shouldBe('/(x)\\1q/.exec("xxq").toString()', '"xxq,x"');
66shouldBe('/(x)[\\1q]/.exec("xxq").toString()', '"xq,x"');
67shouldBe('/(x)[\\1q]/.exec("xx" + String.fromCharCode(1)).toString()', '"x" + String.fromCharCode(1) + ",x"');
68
69debug('');
70