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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( | |
45 regexp5.firstMatch('abacadabe'), ['abe', 'ab', 'b', 'b', null, null]); | |
46 | |
47 var regexp6 = new RegExp(r"(a((b)|(c)|(d)))"); | |
48 shouldBe(regexp6.firstMatch('abcde'), ['ab', 'ab', 'b', 'b', null, null]); | |
49 | |
50 var regexp7 = new RegExp(r"(a(b)??)??c"); | |
51 shouldBe(regexp7.firstMatch('abc'), ['abc', 'ab', 'b']); | |
52 | |
53 var regexp8 = new RegExp(r"(a|(e|q))(x|y)"); | |
54 shouldBe(regexp8.firstMatch('bcaddxqy'), ['qy', 'q', 'q', 'y']); | |
55 | |
56 var regexp9 = new RegExp(r"((t|b)?|a)$"); | |
57 shouldBe( | |
58 regexp9.firstMatch('asdfjejgsdflaksdfjkeljghkjea'), ['a', 'a', null]); | |
59 | |
60 var regexp10 = new RegExp(r"(?:h|e?(?:t|b)?|a?(?:t|b)?)(?:$)"); | |
61 shouldBe(regexp10.firstMatch('asdfjejgsdflaksdfjkeljghat'), ['at']); | |
62 | |
63 var regexp11 = new RegExp(r"([Jj]ava([Ss]cript)?)\sis\s(fun\w*)"); | |
64 shouldBeNull(regexp11.firstMatch( | |
65 'Developing with JavaScript is dangerous, do not try it without assistance
')); | |
66 | |
67 var regexp12 = new RegExp(r"(?:(.+), )?(.+), (..) to (?:(.+), )?(.+), (..)"); | |
68 shouldBe(regexp12.firstMatch('Seattle, WA to Buckley, WA'), [ | |
69 'Seattle, WA to Buckley, WA', | |
70 null, | |
71 'Seattle', | |
72 'WA', | |
73 null, | |
74 'Buckley', | |
75 'WA' | |
76 ]); | |
77 | |
78 var regexp13 = new RegExp(r"(A)?(A.*)"); | |
79 shouldBe(regexp13.firstMatch('zxcasd;fl\ ^AaaAAaaaf;lrlrzs'), | |
80 ['AaaAAaaaf;lrlrzs', null, 'AaaAAaaaf;lrlrzs']); | |
81 | |
82 var regexp14 = new RegExp(r"(a)|(b)"); | |
83 shouldBe(regexp14.firstMatch('b'), ['b', null, 'b']); | |
84 | |
85 var regexp15 = new RegExp(r"^(?!(ab)de|x)(abd)(f)"); | |
86 shouldBe(regexp15.firstMatch('abdf'), ['abdf', null, 'abd', 'f']); | |
87 | |
88 var regexp16 = new RegExp(r"(a|A)(b|B)"); | |
89 shouldBe(regexp16.firstMatch('abc'), ['ab', 'a', 'b']); | |
90 | |
91 var regexp17 = new RegExp(r"(a|d|q|)x", caseSensitive: false); | |
92 shouldBe(regexp17.firstMatch('bcaDxqy'), ['Dx', 'D']); | |
93 | |
94 var regexp18 = new RegExp(r"^.*?(:|$)"); | |
95 shouldBe(regexp18.firstMatch('Hello: World'), ['Hello:', ':']); | |
96 | |
97 var regexp19 = new RegExp(r"(ab|^.{0,2})bar"); | |
98 shouldBe(regexp19.firstMatch('barrel'), ['bar', '']); | |
99 | |
100 var regexp20 = new RegExp(r"(?:(?!foo)...|^.{0,2})bar(.*)"); | |
101 shouldBe(regexp20.firstMatch('barrel'), ['barrel', 'rel']); | |
102 shouldBe(regexp20.firstMatch('2barrel'), ['2barrel', 'rel']); | |
103 | |
104 var regexp21 = new RegExp(r"([a-g](b|B)|xyz)"); | |
105 shouldBe(regexp21.firstMatch('abc'), ['ab', 'ab', 'b']); | |
106 | |
107 var regexp22 = new RegExp(r"(?:^|;)\s*abc=([^;]*)"); | |
108 shouldBeNull(regexp22.firstMatch('abcdlskfgjdslkfg')); | |
109 | |
110 var regexp23 = new RegExp("\"[^<\"]*\"|'[^<']*'"); | |
111 shouldBe(regexp23.firstMatch('<html xmlns=\"http://www.w3.org/1999/xhtml\"'), | |
112 ['\"http://www.w3.org/1999/xhtml\"']); | |
113 | |
114 var regexp24 = new RegExp(r"^(?:(?=abc)\w{3}:|\d\d)$"); | |
115 shouldBeNull(regexp24.firstMatch('123')); | |
116 | |
117 var regexp25 = new RegExp(r"^\s*(\*|[\w\-]+)(\b|$)?"); | |
118 shouldBe(regexp25.firstMatch('this is a test'), ['this', 'this', null]); | |
119 shouldBeNull(regexp25.firstMatch('!this is a test')); | |
120 | |
121 var regexp26 = new RegExp(r"a(b)(a*)|aaa"); | |
122 shouldBe(regexp26.firstMatch('aaa'), ['aaa', null, null]); | |
123 | |
124 var regexp27 = new RegExp("^" + | |
125 "(?:" + | |
126 "([^:/?#]+):" + /* scheme */ | |
127 ")?" + | |
128 "(?:" + | |
129 "(//)" + /* authorityRoot */ | |
130 "(" + /* authority */ | |
131 "(?:" + | |
132 "(" + /* userInfo */ | |
133 "([^:@]*)" + /* user */ | |
134 ":?" + | |
135 "([^:@]*)" + /* password */ | |
136 ")?" + | |
137 "@" + | |
138 ")?" + | |
139 "([^:/?#]*)" + /* domain */ | |
140 "(?::(\\d*))?" + /* port */ | |
141 ")" + | |
142 ")?" + | |
143 "([^?#]*)" + /*path*/ | |
144 "(?:\\?([^#]*))?" + /* queryString */ | |
145 "(?:#(.*))?" /*fragment */ | |
146 ); | |
147 shouldBe( | |
148 regexp27 | |
149 .firstMatch('file:///Users/Someone/Desktop/HelloWorld/index.html'), | |
150 [ | |
151 'file:///Users/Someone/Desktop/HelloWorld/index.html', | |
152 'file', | |
153 '//', | |
154 '', | |
155 null, | |
156 null, | |
157 null, | |
158 '', | |
159 null, | |
160 '/Users/Someone/Desktop/HelloWorld/index.html', | |
161 null, | |
162 null | |
163 ]); | |
164 | |
165 var regexp28 = new RegExp("^" + | |
166 "(?:" + | |
167 "([^:/?#]+):" + /* scheme */ | |
168 ")?" + | |
169 "(?:" + | |
170 "(//)" + /* authorityRoot */ | |
171 "(" + /* authority */ | |
172 "(" + /* userInfo */ | |
173 "([^:@]*)" + /* user */ | |
174 ":?" + | |
175 "([^:@]*)" + /* password */ | |
176 ")?" + | |
177 "@" + | |
178 ")" + | |
179 ")?"); | |
180 shouldBe( | |
181 regexp28 | |
182 .firstMatch('file:///Users/Someone/Desktop/HelloWorld/index.html'), | |
183 ['file:', 'file', null, null, null, null, null]); | |
184 | |
185 var regexp29 = new RegExp(r'^\s*((\[[^\]]+\])|(u?)("[^"]+"))\s*'); | |
186 shouldBeNull(regexp29.firstMatch('Committer:')); | |
187 | |
188 var regexp30 = new RegExp(r'^\s*((\[[^\]]+\])|m(u?)("[^"]+"))\s*'); | |
189 shouldBeNull(regexp30.firstMatch('Committer:')); | |
190 | |
191 var regexp31 = new RegExp(r'^\s*(m(\[[^\]]+\])|m(u?)("[^"]+"))\s*'); | |
192 shouldBeNull(regexp31.firstMatch('Committer:')); | |
193 | |
194 var regexp32 = new RegExp(r'\s*(m(\[[^\]]+\])|m(u?)("[^"]+"))\s*'); | |
195 shouldBeNull(regexp32.firstMatch('Committer:')); | |
196 | |
197 var regexp33 = new RegExp('^(?:(?:(a)(xyz|[^>"\'\s]*)?)|(/?>)|.[^\w\s>]*)'); | |
198 shouldBe(regexp33.firstMatch('> <head>'), ['>', null, null, '>']); | |
199 | |
200 var regexp34 = new RegExp(r"(?:^|\b)btn-\S+"); | |
201 shouldBeNull(regexp34.firstMatch('xyz123')); | |
202 shouldBe(regexp34.firstMatch('btn-abc'), ['btn-abc']); | |
203 shouldBeNull(regexp34.firstMatch('btn- abc')); | |
204 shouldBeNull(regexp34.firstMatch('XXbtn-abc')); | |
205 shouldBe(regexp34.firstMatch('XX btn-abc'), ['btn-abc']); | |
206 | |
207 var regexp35 = new RegExp(r"^((a|b)(x|xxx)|)$"); | |
208 shouldBe(regexp35.firstMatch('ax'), ['ax', 'ax', 'a', 'x']); | |
209 shouldBeNull(regexp35.firstMatch('axx')); | |
210 shouldBe(regexp35.firstMatch('axxx'), ['axxx', 'axxx', 'a', 'xxx']); | |
211 shouldBe(regexp35.firstMatch('bx'), ['bx', 'bx', 'b', 'x']); | |
212 shouldBeNull(regexp35.firstMatch('bxx')); | |
213 shouldBe(regexp35.firstMatch('bxxx'), ['bxxx', 'bxxx', 'b', 'xxx']); | |
214 | |
215 var regexp36 = new RegExp(r"^((\/|\.|\-)(\d\d|\d\d\d\d)|)$"); | |
216 shouldBe(regexp36.firstMatch('/2011'), ['/2011', '/2011', '/', '2011']); | |
217 shouldBe(regexp36.firstMatch('/11'), ['/11', '/11', '/', '11']); | |
218 shouldBeNull(regexp36.firstMatch('/123')); | |
219 | |
220 var regexp37 = new RegExp( | |
221 r"^([1][0-2]|[0]\d|\d)(\/|\.|\-)([0-2]\d|[3][0-1]|\d)((\/|\.|\-)(\d\d|\d\d
\d\d)|)$"); | |
222 shouldBe(regexp37.firstMatch('7/4/1776'), | |
223 ['7/4/1776', '7', '/', '4', '/1776', '/', '1776']); | |
224 shouldBe(regexp37.firstMatch('07-04-1776'), | |
225 ['07-04-1776', '07', '-', '04', '-1776', '-', '1776']); | |
226 | |
227 var regexp38 = new RegExp(r"^(z|(x|xx)|b|)$"); | |
228 shouldBe(regexp38.firstMatch('xx'), ['xx', 'xx', 'xx']); | |
229 shouldBe(regexp38.firstMatch('b'), ['b', 'b', null]); | |
230 shouldBe(regexp38.firstMatch('z'), ['z', 'z', null]); | |
231 shouldBe(regexp38.firstMatch(''), ['', '', null]); | |
232 | |
233 var regexp39 = new RegExp(r"(8|((?=P)))?"); | |
234 shouldBe(regexp39.firstMatch(''), ['', null, null]); | |
235 shouldBe(regexp39.firstMatch('8'), ['8', '8', null]); | |
236 shouldBe(regexp39.firstMatch('zP'), ['', null, null]); | |
237 | |
238 var regexp40 = new RegExp(r"((8)|((?=P){4}))?()"); | |
239 shouldBe(regexp40.firstMatch(''), ['', null, null, null, '']); | |
240 shouldBe(regexp40.firstMatch('8'), ['8', '8', '8', null, '']); | |
241 shouldBe(regexp40.firstMatch('zPz'), ['', null, null, null, '']); | |
242 shouldBe(regexp40.firstMatch('zPPz'), ['', null, null, null, '']); | |
243 shouldBe(regexp40.firstMatch('zPPPz'), ['', null, null, null, '']); | |
244 shouldBe(regexp40.firstMatch('zPPPPz'), ['', null, null, null, '']); | |
245 | |
246 var regexp41 = new RegExp( | |
247 r"(([\w\-]+:\/\/?|www[.])[^\s()<>]+(?:([\w\d]+)|([^\[:punct:\]\s()<>\W]|\/
)))"); | |
248 shouldBe( | |
249 regexp41.firstMatch( | |
250 'Here is a link: http://www.acme.com/our_products/index.html. That is
all we want!'), | |
251 [ | |
252 'http://www.acme.com/our_products/index.html', | |
253 'http://www.acme.com/our_products/index.html', | |
254 'http://', | |
255 'l', | |
256 null | |
257 ]); | |
258 | |
259 var regexp42 = new RegExp(r"((?:(4)?))?"); | |
260 shouldBe(regexp42.firstMatch(''), ['', null, null]); | |
261 shouldBe(regexp42.firstMatch('4'), ['4', '4', '4']); | |
262 shouldBe(regexp42.firstMatch('4321'), ['4', '4', '4']); | |
263 | |
264 shouldBeTrue(new RegExp(r"(?!(?=r{0}){2,})|((z)?)?", caseSensitive: false) | |
265 .hasMatch('')); | |
266 | |
267 var regexp43 = new RegExp(r"(?!(?:\1+s))"); | |
268 shouldBe(regexp43.firstMatch('SSS'), ['']); | |
269 | |
270 var regexp44 = new RegExp(r"(?!(?:\3+(s+?)))"); | |
271 shouldBe(regexp44.firstMatch('SSS'), ['', null]); | |
272 | |
273 var regexp45 = new RegExp(r"((?!(?:|)v{2,}|))"); | |
274 shouldBeNull(regexp45.firstMatch('vt')); | |
275 | |
276 var regexp46 = new RegExp(r"(w)(?:5{3}|())|pk"); | |
277 shouldBeNull(regexp46.firstMatch('5')); | |
278 shouldBe(regexp46.firstMatch('pk'), ['pk', null, null]); | |
279 shouldBe(regexp46.firstMatch('Xw555'), ['w555', 'w', null]); | |
280 shouldBe(regexp46.firstMatch('Xw55pk5'), ['w', 'w', '']); | |
281 | |
282 var regexp47 = new RegExp(r"(.*?)(?:(?:\?(.*?)?)?)(?:(?:#)?)$"); | |
283 shouldBe(regexp47.firstMatch('/www.acme.com/this/is/a/path/file.txt'), [ | |
284 '/www.acme.com/this/is/a/path/file.txt', | |
285 '/www.acme.com/this/is/a/path/file.txt', | |
286 null | |
287 ]); | |
288 | |
289 var regexp48 = new RegExp( | |
290 r"^(?:(\w+):\/*([\w\.\-\d]+)(?::(\d+)|)(?=(?:\/|$))|)(?:$|\/?(.*?)(?:\?(.*
?)?|)(?:#(.*)|)$)"); | |
291 shouldBe(regexp48.firstMatch('http://www.acme.com/this/is/a/path/file.txt'), [ | |
292 'http://www.acme.com/this/is/a/path/file.txt', | |
293 'http', | |
294 'www.acme.com', | |
295 null, | |
296 'this/is/a/path/file.txt', | |
297 null, | |
298 null | |
299 ]); | |
300 | |
301 var regexp49 = new RegExp( | |
302 r"(?:([^:]*?)(?:(?:\?(.*?)?)?)(?:(?:#)?)$)|(?:^(?:(\w+):\/*([\w\.\-\d]+)(?
::(\d+)|)(?=(?:\/|$))|)(?:$|\/?(.*?)(?:\?(.*?)?|)(?:#(.*)|)$))"); | |
303 shouldBe(regexp49.firstMatch('http://www.acme.com/this/is/a/path/file.txt'), [ | |
304 'http://www.acme.com/this/is/a/path/file.txt', | |
305 null, | |
306 null, | |
307 'http', | |
308 'www.acme.com', | |
309 null, | |
310 'this/is/a/path/file.txt', | |
311 null, | |
312 null | |
313 ]); | |
314 | |
315 var regexp50 = new RegExp(r"((a)b{28,}c|d)x"); | |
316 shouldBeNull(regexp50.firstMatch('((a)b{28,}c|d)x')); | |
317 shouldBe(regexp50.firstMatch('abbbbbbbbbbbbbbbbbbbbbbbbbbbbcx'), [ | |
318 'abbbbbbbbbbbbbbbbbbbbbbbbbbbbcx', | |
319 'abbbbbbbbbbbbbbbbbbbbbbbbbbbbc', | |
320 'a' | |
321 ]); | |
322 shouldBe(regexp50.firstMatch('dx'), ['dx', 'd', null]); | |
323 | |
324 var s = "((.\s{-}).{28,}\P{Yi}?{,30}\|.)\x9e{-,}\P{Any}"; | |
325 var regexp51 = new RegExp(s); | |
326 shouldBeNull(regexp51.firstMatch('abc')); | |
327 shouldBe(regexp51.firstMatch(s), [')\x9e{-,}P{Any}', ')', null]); | |
328 | |
329 var regexp52 = new RegExp(r"(Rob)|(Bob)|(Robert)|(Bobby)"); | |
330 shouldBe(regexp52.firstMatch('Hi Bob'), ['Bob', null, 'Bob', null, null]); | |
331 | |
332 // Test cases discovered by fuzzing that crashed the compiler. | |
333 var regexp53 = new RegExp( | |
334 r"(?=(?:(?:(gB)|(?!cs|<))((?=(?!v6){0,})))|(?=#)+?)", | |
335 multiLine: true); | |
336 shouldBe(regexp53.firstMatch('#'), ['', null, '']); | |
337 var regexp54 = new RegExp(r"((?:(?:()|(?!))((?=(?!))))|())", multiLine: true); | |
338 shouldBe(regexp54.firstMatch('#'), ['', '', null, null, '']); | |
339 var regexp55 = new RegExp(r"(?:(?:(?:a?|(?:))((?:)))|a?)", multiLine: true); | |
340 shouldBe(regexp55.firstMatch('#'), ['', '']); | |
341 | |
342 // Test evaluation order of empty subpattern alternatives. | |
343 var regexp56 = new RegExp(r"(|a)"); | |
344 shouldBe(regexp56.firstMatch('a'), ['', '']); | |
345 var regexp57 = new RegExp(r"(a|)"); | |
346 shouldBe(regexp57.firstMatch('a'), ['a', 'a']); | |
347 | |
348 // Tests that non-greedy repeat quantified parentheses will backtrack through
multiple frames of subpattern matches. | |
349 var regexp58 = new RegExp(r"a|b(?:[^b])*?c"); | |
350 shouldBe(regexp58.firstMatch('badbc'), ['a']); | |
351 var regexp59 = new RegExp(r"(X(?:.(?!X))*?Y)|(Y(?:.(?!Y))*?Z)"); | |
352 Expect.listEquals( | |
353 regexp59 | |
354 .allMatches('Y aaa X Match1 Y aaa Y Match2 Z') | |
355 .map((m) => m.group(0)) | |
356 .toList(), | |
357 ['X Match1 Y', 'Y Match2 Z']); | |
358 } | |
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