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Side by Side Diff: tests/corelib/regexp/parentheses_test.dart

Issue 691473002: Reapply "Port regexp tests from V8 to Dart." (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: RC and rebase Created 6 years, 1 month ago
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1 // Copyright (c) 2014, the Dart project authors. All rights reserved.
2 // Copyright 2013 the V8 project authors. All rights reserved.
3 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
4 //
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions
7 // are met:
8 // 1. Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 // 2. Redistributions in binary form must reproduce the above copyright
11 // notice, this list of conditions and the following disclaimer in the
12 // documentation and/or other materials provided with the distribution.
13 //
14 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN Y
15 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN Y
18 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O N
21 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24
25 import 'v8_regexp_utils.dart';
26 import 'package:expect/expect.dart';
27
28 void main() {
29 description("This page tests handling of parentheses subexpressions.");
30
31 var regexp1 = new RegExp(r"(a|A)(b|B)");
32 shouldBe(regexp1.firstMatch('abc'), ['ab','a','b']);
33
34 var regexp2 = new RegExp(r"(a((b)|c|d))e");
35 shouldBe(regexp2.firstMatch('abacadabe'), ['abe','ab','b','b']);
36
37 var regexp3 = new RegExp(r"(a(b|(c)|d))e");
38 shouldBe(regexp3.firstMatch('abacadabe'), ['abe','ab','b',null]);
39
40 var regexp4 = new RegExp(r"(a(b|c|(d)))e");
41 shouldBe(regexp4.firstMatch('abacadabe'), ['abe','ab','b',null]);
42
43 var regexp5 = new RegExp(r"(a((b)|(c)|(d)))e");
44 shouldBe(regexp5.firstMatch('abacadabe'), ['abe','ab','b','b',null,null]);
45
46 var regexp6 = new RegExp(r"(a((b)|(c)|(d)))");
47 shouldBe(regexp6.firstMatch('abcde'), ['ab','ab','b','b',null,null]);
48
49 var regexp7 = new RegExp(r"(a(b)??)??c");
50 shouldBe(regexp7.firstMatch('abc'), ['abc','ab','b']);
51
52 var regexp8 = new RegExp(r"(a|(e|q))(x|y)");
53 shouldBe(regexp8.firstMatch('bcaddxqy') , ['qy','q','q','y']);
54
55 var regexp9 = new RegExp(r"((t|b)?|a)$");
56 shouldBe(regexp9.firstMatch('asdfjejgsdflaksdfjkeljghkjea'), ['a','a',null]);
57
58 var regexp10 = new RegExp(r"(?:h|e?(?:t|b)?|a?(?:t|b)?)(?:$)");
59 shouldBe(regexp10.firstMatch('asdfjejgsdflaksdfjkeljghat'), ['at']);
60
61 var regexp11 = new RegExp(r"([Jj]ava([Ss]cript)?)\sis\s(fun\w*)");
62 shouldBeNull(regexp11.firstMatch('Developing with JavaScript is dangerous, do not try it without assistance'));
63
64 var regexp12 = new RegExp(r"(?:(.+), )?(.+), (..) to (?:(.+), )?(.+), (..)");
65 shouldBe(regexp12.firstMatch('Seattle, WA to Buckley, WA'), ['Seattle, WA to B uckley, WA', null, 'Seattle', 'WA', null, 'Buckley', 'WA']);
66
67 var regexp13 = new RegExp(r"(A)?(A.*)");
68 shouldBe(regexp13.firstMatch('zxcasd;fl\ ^AaaAAaaaf;lrlrzs'), ['AaaAAaaaf;lrlr zs',null,'AaaAAaaaf;lrlrzs']);
69
70 var regexp14 = new RegExp(r"(a)|(b)");
71 shouldBe(regexp14.firstMatch('b'), ['b',null,'b']);
72
73 var regexp15 = new RegExp(r"^(?!(ab)de|x)(abd)(f)");
74 shouldBe(regexp15.firstMatch('abdf'), ['abdf',null,'abd','f']);
75
76 var regexp16 = new RegExp(r"(a|A)(b|B)");
77 shouldBe(regexp16.firstMatch('abc'), ['ab','a','b']);
78
79 var regexp17 = new RegExp(r"(a|d|q|)x", caseSensitive: false);
80 shouldBe(regexp17.firstMatch('bcaDxqy'), ['Dx','D']);
81
82 var regexp18 = new RegExp(r"^.*?(:|$)");
83 shouldBe(regexp18.firstMatch('Hello: World'), ['Hello:',':']);
84
85 var regexp19 = new RegExp(r"(ab|^.{0,2})bar");
86 shouldBe(regexp19.firstMatch('barrel'), ['bar','']);
87
88 var regexp20 = new RegExp(r"(?:(?!foo)...|^.{0,2})bar(.*)");
89 shouldBe(regexp20.firstMatch('barrel'), ['barrel','rel']);
90 shouldBe(regexp20.firstMatch('2barrel'), ['2barrel','rel']);
91
92 var regexp21 = new RegExp(r"([a-g](b|B)|xyz)");
93 shouldBe(regexp21.firstMatch('abc'), ['ab','ab','b']);
94
95 var regexp22 = new RegExp(r"(?:^|;)\s*abc=([^;]*)");
96 shouldBeNull(regexp22.firstMatch('abcdlskfgjdslkfg'));
97
98 var regexp23 = new RegExp("\"[^<\"]*\"|'[^<']*'");
99 shouldBe(regexp23.firstMatch('<html xmlns=\"http://www.w3.org/1999/xhtml\"'),
100 ['\"http://www.w3.org/1999/xhtml\"']);
101
102 var regexp24 = new RegExp(r"^(?:(?=abc)\w{3}:|\d\d)$");
103 shouldBeNull(regexp24.firstMatch('123'));
104
105 var regexp25 = new RegExp(r"^\s*(\*|[\w\-]+)(\b|$)?");
106 shouldBe(regexp25.firstMatch('this is a test'), ['this','this',null]);
107 shouldBeNull(regexp25.firstMatch('!this is a test'));
108
109 var regexp26 = new RegExp(r"a(b)(a*)|aaa");
110 shouldBe(regexp26.firstMatch('aaa'), ['aaa',null,null]);
111
112 var regexp27 = new RegExp(
113 "^" +
114 "(?:" +
115 "([^:/?#]+):" + /* scheme */
116 ")?" +
117 "(?:" +
118 "(//)" + /* authorityRoot */
119 "(" + /* authority */
120 "(?:" +
121 "(" + /* userInfo */
122 "([^:@]*)" + /* user */
123 ":?" +
124 "([^:@]*)" + /* password */
125 ")?" +
126 "@" +
127 ")?" +
128 "([^:/?#]*)" + /* domain */
129 "(?::(\\d*))?" + /* port */
130 ")" +
131 ")?" +
132 "([^?#]*)" + /*path*/
133 "(?:\\?([^#]*))?" + /* queryString */
134 "(?:#(.*))?" /*fragment */
135 );
136 shouldBe(regexp27.firstMatch('file:///Users/Someone/Desktop/HelloWorld/index.h tml'), ['file:///Users/Someone/Desktop/HelloWorld/index.html','file','//','',nul l,null,null,'',null,'/Users/Someone/Desktop/HelloWorld/index.html',null,null]);
137
138 var regexp28 = new RegExp(
139 "^" +
140 "(?:" +
141 "([^:/?#]+):" + /* scheme */
142 ")?" +
143 "(?:" +
144 "(//)" + /* authorityRoot */
145 "(" + /* authority */
146 "(" + /* userInfo */
147 "([^:@]*)" + /* user */
148 ":?" +
149 "([^:@]*)" + /* password */
150 ")?" +
151 "@" +
152 ")" +
153 ")?"
154 );
155 shouldBe(regexp28.firstMatch('file:///Users/Someone/Desktop/HelloWorld/index.h tml'), ['file:','file',null,null,null,null,null]);
156
157 var regexp29 = new RegExp(r'^\s*((\[[^\]]+\])|(u?)("[^"]+"))\s*');
158 shouldBeNull(regexp29.firstMatch('Committer:'));
159
160 var regexp30 = new RegExp(r'^\s*((\[[^\]]+\])|m(u?)("[^"]+"))\s*');
161 shouldBeNull(regexp30.firstMatch('Committer:'));
162
163 var regexp31 = new RegExp(r'^\s*(m(\[[^\]]+\])|m(u?)("[^"]+"))\s*');
164 shouldBeNull(regexp31.firstMatch('Committer:'));
165
166 var regexp32 = new RegExp(r'\s*(m(\[[^\]]+\])|m(u?)("[^"]+"))\s*');
167 shouldBeNull(regexp32.firstMatch('Committer:'));
168
169 var regexp33 = new RegExp('^(?:(?:(a)(xyz|[^>"\'\s]*)?)|(/?>)|.[^\w\s>]*)');
170 shouldBe(regexp33.firstMatch('> <head>'), ['>',null,null,'>']);
171
172 var regexp34 = new RegExp(r"(?:^|\b)btn-\S+");
173 shouldBeNull(regexp34.firstMatch('xyz123'));
174 shouldBe(regexp34.firstMatch('btn-abc'),['btn-abc']);
175 shouldBeNull(regexp34.firstMatch('btn- abc'));
176 shouldBeNull(regexp34.firstMatch('XXbtn-abc'));
177 shouldBe(regexp34.firstMatch('XX btn-abc'),['btn-abc']);
178
179 var regexp35 = new RegExp(r"^((a|b)(x|xxx)|)$");
180 shouldBe(regexp35.firstMatch('ax'), ['ax','ax','a','x']);
181 shouldBeNull(regexp35.firstMatch('axx'));
182 shouldBe(regexp35.firstMatch('axxx'), ['axxx','axxx','a','xxx']);
183 shouldBe(regexp35.firstMatch('bx'), ['bx','bx','b','x']);
184 shouldBeNull(regexp35.firstMatch('bxx'));
185 shouldBe(regexp35.firstMatch('bxxx'), ['bxxx','bxxx','b','xxx']);
186
187 var regexp36 = new RegExp(r"^((\/|\.|\-)(\d\d|\d\d\d\d)|)$");
188 shouldBe(regexp36.firstMatch('/2011'), ['/2011','/2011','/','2011']);
189 shouldBe(regexp36.firstMatch('/11'), ['/11','/11','/','11']);
190 shouldBeNull(regexp36.firstMatch('/123'));
191
192 var regexp37 = new RegExp(r"^([1][0-2]|[0]\d|\d)(\/|\.|\-)([0-2]\d|[3][0-1]|\d )((\/|\.|\-)(\d\d|\d\d\d\d)|)$");
193 shouldBe(regexp37.firstMatch('7/4/1776'), ['7/4/1776','7','/','4','/1776','/', '1776']);
194 shouldBe(regexp37.firstMatch('07-04-1776'), ['07-04-1776','07','-','04','-1776 ','-','1776']);
195
196 var regexp38 = new RegExp(r"^(z|(x|xx)|b|)$");
197 shouldBe(regexp38.firstMatch('xx'), ['xx','xx','xx']);
198 shouldBe(regexp38.firstMatch('b'), ['b','b',null]);
199 shouldBe(regexp38.firstMatch('z'), ['z','z',null]);
200 shouldBe(regexp38.firstMatch(''), ['','',null]);
201
202 var regexp39 = new RegExp(r"(8|((?=P)))?");
203 shouldBe(regexp39.firstMatch(''), ['',null,null]);
204 shouldBe(regexp39.firstMatch('8'), ['8','8',null]);
205 shouldBe(regexp39.firstMatch('zP'), ['',null,null]);
206
207 var regexp40 = new RegExp(r"((8)|((?=P){4}))?()");
208 shouldBe(regexp40.firstMatch(''), ['',null,null,null,'']);
209 shouldBe(regexp40.firstMatch('8'), ['8','8','8',null,'']);
210 shouldBe(regexp40.firstMatch('zPz'), ['',null,null,null,'']);
211 shouldBe(regexp40.firstMatch('zPPz'), ['',null,null,null,'']);
212 shouldBe(regexp40.firstMatch('zPPPz'), ['',null,null,null,'']);
213 shouldBe(regexp40.firstMatch('zPPPPz'), ['',null,null,null,'']);
214
215 var regexp41 = new RegExp(r"(([\w\-]+:\/\/?|www[.])[^\s()<>]+(?:([\w\d]+)|([^\ [:punct:\]\s()<>\W]|\/)))");
216 shouldBe(regexp41.firstMatch('Here is a link: http://www.acme.com/our_products /index.html. That is all we want!'),
217 ['http://www.acme.com/our_products/index.html','http://www.acme.com/our_pr oducts/index.html','http://','l',null]);
218
219 var regexp42 = new RegExp(r"((?:(4)?))?");
220 shouldBe(regexp42.firstMatch(''), ['',null,null]);
221 shouldBe(regexp42.firstMatch('4'), ['4','4','4']);
222 shouldBe(regexp42.firstMatch('4321'), ['4','4','4']);
223
224 shouldBeTrue(new RegExp(r"(?!(?=r{0}){2,})|((z)?)?", caseSensitive: false).has Match(''));
225
226 var regexp43 = new RegExp(r"(?!(?:\1+s))");
227 shouldBe(regexp43.firstMatch('SSS'), ['']);
228
229 var regexp44 = new RegExp(r"(?!(?:\3+(s+?)))");
230 shouldBe(regexp44.firstMatch('SSS'), ['',null]);
231
232 var regexp45 = new RegExp(r"((?!(?:|)v{2,}|))");
233 shouldBeNull(regexp45.firstMatch('vt'));
234
235 var regexp46 = new RegExp(r"(w)(?:5{3}|())|pk");
236 shouldBeNull(regexp46.firstMatch('5'));
237 shouldBe(regexp46.firstMatch('pk'), ['pk',null,null]);
238 shouldBe(regexp46.firstMatch('Xw555'), ['w555','w',null]);
239 shouldBe(regexp46.firstMatch('Xw55pk5'), ['w','w','']);
240
241 var regexp47 = new RegExp(r"(.*?)(?:(?:\?(.*?)?)?)(?:(?:#)?)$");
242 shouldBe(regexp47.firstMatch('/www.acme.com/this/is/a/path/file.txt'),
243 ['/www.acme.com/this/is/a/path/file.txt','/www.acme.com/this/is/a/path/f ile.txt',null]);
244
245 var regexp48 = new RegExp(r"^(?:(\w+):\/*([\w\.\-\d]+)(?::(\d+)|)(?=(?:\/|$))| )(?:$|\/?(.*?)(?:\?(.*?)?|)(?:#(.*)|)$)");
246 shouldBe(regexp48.firstMatch('http://www.acme.com/this/is/a/path/file.txt'),
247 ['http://www.acme.com/this/is/a/path/file.txt','http','www.acme.com',null, 'this/is/a/path/file.txt',null,null]);
248
249 var regexp49 = new RegExp(r"(?:([^:]*?)(?:(?:\?(.*?)?)?)(?:(?:#)?)$)|(?:^(?:(\ w+):\/*([\w\.\-\d]+)(?::(\d+)|)(?=(?:\/|$))|)(?:$|\/?(.*?)(?:\?(.*?)?|)(?:#(.*)| )$))");
250 shouldBe(regexp49.firstMatch('http://www.acme.com/this/is/a/path/file.txt'),
251 ['http://www.acme.com/this/is/a/path/file.txt',null,null,'http','www.acme. com',null,'this/is/a/path/file.txt',null,null]);
252
253 var regexp50 = new RegExp(r"((a)b{28,}c|d)x");
254 shouldBeNull(regexp50.firstMatch('((a)b{28,}c|d)x'));
255 shouldBe(regexp50.firstMatch('abbbbbbbbbbbbbbbbbbbbbbbbbbbbcx'), ['abbbbbbbbbb bbbbbbbbbbbbbbbbbbcx', 'abbbbbbbbbbbbbbbbbbbbbbbbbbbbc', 'a']);
256 shouldBe(regexp50.firstMatch('dx'), ['dx', 'd', null]);
257
258 var s = "((.\s{-}).{28,}\P{Yi}?{,30}\|.)\x9e{-,}\P{Any}";
259 var regexp51 = new RegExp(s);
260 shouldBeNull(regexp51.firstMatch('abc'));
261 shouldBe(regexp51.firstMatch(s), [')\x9e{-,}P{Any}',')',null]);
262
263 var regexp52 = new RegExp(r"(Rob)|(Bob)|(Robert)|(Bobby)");
264 shouldBe(regexp52.firstMatch('Hi Bob'), ['Bob',null,'Bob',null,null]);
265
266 // Test cases discovered by fuzzing that crashed the compiler.
267 var regexp53 = new RegExp(r"(?=(?:(?:(gB)|(?!cs|<))((?=(?!v6){0,})))|(?=#)+?)" , multiLine: true);
268 shouldBe(regexp53.firstMatch('#'), ['',null,'']);
269 var regexp54 = new RegExp(r"((?:(?:()|(?!))((?=(?!))))|())", multiLine: true);
270 shouldBe(regexp54.firstMatch('#'), ['','',null,null,'']);
271 var regexp55 = new RegExp(r"(?:(?:(?:a?|(?:))((?:)))|a?)", multiLine: true);
272 shouldBe(regexp55.firstMatch('#'), ['','']);
273
274 // Test evaluation order of empty subpattern alternatives.
275 var regexp56 = new RegExp(r"(|a)");
276 shouldBe(regexp56.firstMatch('a'), ['','']);
277 var regexp57 = new RegExp(r"(a|)");
278 shouldBe(regexp57.firstMatch('a'), ['a','a']);
279
280 // Tests that non-greedy repeat quantified parentheses will backtrack through multiple frames of subpattern matches.
281 var regexp58 = new RegExp(r"a|b(?:[^b])*?c");
282 shouldBe(regexp58.firstMatch('badbc'), ['a']);
283 var regexp59 = new RegExp(r"(X(?:.(?!X))*?Y)|(Y(?:.(?!Y))*?Z)");
284 Expect.listEquals(regexp59.allMatches('Y aaa X Match1 Y aaa Y Match2 Z')
285 .map((m) => m.group(0))
286 .toList(),
287 ['X Match1 Y','Y Match2 Z']);
288 }
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