/[pcre]/code/trunk/testdata/testinput1
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Contents of /code/trunk/testdata/testinput1

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Revision 170 - (show annotations) (download)
Mon Jun 4 11:21:13 2007 UTC (5 years, 11 months ago) by ph10
File size: 75973 byte(s) 
Fix bug in detecting potentially empty groups.
1 /the quick brown fox/
2 the quick brown fox
3 The quick brown FOX
4 What do you know about the quick brown fox?
5 What do you know about THE QUICK BROWN FOX?
6
7 /The quick brown fox/i
8 the quick brown fox
9 The quick brown FOX
10 What do you know about the quick brown fox?
11 What do you know about THE QUICK BROWN FOX?
12
13 /abcd\t\n\r\f\a\e\071\x3b\$\\\?caxyz/
14 abcd\t\n\r\f\a\e9;\$\\?caxyz
15
16 /a*abc?xyz+pqr{3}ab{2,}xy{4,5}pq{0,6}AB{0,}zz/
17 abxyzpqrrrabbxyyyypqAzz
18 abxyzpqrrrabbxyyyypqAzz
19 aabxyzpqrrrabbxyyyypqAzz
20 aaabxyzpqrrrabbxyyyypqAzz
21 aaaabxyzpqrrrabbxyyyypqAzz
22 abcxyzpqrrrabbxyyyypqAzz
23 aabcxyzpqrrrabbxyyyypqAzz
24 aaabcxyzpqrrrabbxyyyypAzz
25 aaabcxyzpqrrrabbxyyyypqAzz
26 aaabcxyzpqrrrabbxyyyypqqAzz
27 aaabcxyzpqrrrabbxyyyypqqqAzz
28 aaabcxyzpqrrrabbxyyyypqqqqAzz
29 aaabcxyzpqrrrabbxyyyypqqqqqAzz
30 aaabcxyzpqrrrabbxyyyypqqqqqqAzz
31 aaaabcxyzpqrrrabbxyyyypqAzz
32 abxyzzpqrrrabbxyyyypqAzz
33 aabxyzzzpqrrrabbxyyyypqAzz
34 aaabxyzzzzpqrrrabbxyyyypqAzz
35 aaaabxyzzzzpqrrrabbxyyyypqAzz
36 abcxyzzpqrrrabbxyyyypqAzz
37 aabcxyzzzpqrrrabbxyyyypqAzz
38 aaabcxyzzzzpqrrrabbxyyyypqAzz
39 aaaabcxyzzzzpqrrrabbxyyyypqAzz
40 aaaabcxyzzzzpqrrrabbbxyyyypqAzz
41 aaaabcxyzzzzpqrrrabbbxyyyyypqAzz
42 aaabcxyzpqrrrabbxyyyypABzz
43 aaabcxyzpqrrrabbxyyyypABBzz
44 >>>aaabxyzpqrrrabbxyyyypqAzz
45 >aaaabxyzpqrrrabbxyyyypqAzz
46 >>>>abcxyzpqrrrabbxyyyypqAzz
47 *** Failers
48 abxyzpqrrabbxyyyypqAzz
49 abxyzpqrrrrabbxyyyypqAzz
50 abxyzpqrrrabxyyyypqAzz
51 aaaabcxyzzzzpqrrrabbbxyyyyyypqAzz
52 aaaabcxyzzzzpqrrrabbbxyyypqAzz
53 aaabcxyzpqrrrabbxyyyypqqqqqqqAzz
54
55 /^(abc){1,2}zz/
56 abczz
57 abcabczz
58 *** Failers
59 zz
60 abcabcabczz
61 >>abczz
62
63 /^(b+?|a){1,2}?c/
64 bc
65 bbc
66 bbbc
67 bac
68 bbac
69 aac
70 abbbbbbbbbbbc
71 bbbbbbbbbbbac
72 *** Failers
73 aaac
74 abbbbbbbbbbbac
75
76 /^(b+|a){1,2}c/
77 bc
78 bbc
79 bbbc
80 bac
81 bbac
82 aac
83 abbbbbbbbbbbc
84 bbbbbbbbbbbac
85 *** Failers
86 aaac
87 abbbbbbbbbbbac
88
89 /^(b+|a){1,2}?bc/
90 bbc
91
92 /^(b*|ba){1,2}?bc/
93 babc
94 bbabc
95 bababc
96 *** Failers
97 bababbc
98 babababc
99
100 /^(ba|b*){1,2}?bc/
101 babc
102 bbabc
103 bababc
104 *** Failers
105 bababbc
106 babababc
107
108 /^\ca\cA\c[\c{\c:/
109 \x01\x01\e;z
110
111 /^[ab\]cde]/
112 athing
113 bthing
114 ]thing
115 cthing
116 dthing
117 ething
118 *** Failers
119 fthing
120 [thing
121 \\thing
122
123 /^[]cde]/
124 ]thing
125 cthing
126 dthing
127 ething
128 *** Failers
129 athing
130 fthing
131
132 /^[^ab\]cde]/
133 fthing
134 [thing
135 \\thing
136 *** Failers
137 athing
138 bthing
139 ]thing
140 cthing
141 dthing
142 ething
143
144 /^[^]cde]/
145 athing
146 fthing
147 *** Failers
148 ]thing
149 cthing
150 dthing
151 ething
152
153 /^\/
154
155
156 /^/
157
158
159 /^[0-9]+$/
160 0
161 1
162 2
163 3
164 4
165 5
166 6
167 7
168 8
169 9
170 10
171 100
172 *** Failers
173 abc
174
175 /^.*nter/
176 enter
177 inter
178 uponter
179
180 /^xxx[0-9]+$/
181 xxx0
182 xxx1234
183 *** Failers
184 xxx
185
186 /^.+[0-9][0-9][0-9]$/
187 x123
188 xx123
189 123456
190 *** Failers
191 123
192 x1234
193
194 /^.+?[0-9][0-9][0-9]$/
195 x123
196 xx123
197 123456
198 *** Failers
199 123
200 x1234
201
202 /^([^!]+)!(.+)=apquxz\.ixr\.zzz\.ac\.uk$/
203 abc!pqr=apquxz.ixr.zzz.ac.uk
204 *** Failers
205 !pqr=apquxz.ixr.zzz.ac.uk
206 abc!=apquxz.ixr.zzz.ac.uk
207 abc!pqr=apquxz:ixr.zzz.ac.uk
208 abc!pqr=apquxz.ixr.zzz.ac.ukk
209
210 /:/
211 Well, we need a colon: somewhere
212 *** Fail if we don't
213
214 /([\da-f:]+)$/i
215 0abc
216 abc
217 fed
218 E
219 ::
220 5f03:12C0::932e
221 fed def
222 Any old stuff
223 *** Failers
224 0zzz
225 gzzz
226 fed\x20
227 Any old rubbish
228
229 /^.*\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/
230 .1.2.3
231 A.12.123.0
232 *** Failers
233 .1.2.3333
234 1.2.3
235 1234.2.3
236
237 /^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/
238 1 IN SOA non-sp1 non-sp2(
239 1 IN SOA non-sp1 non-sp2 (
240 *** Failers
241 1IN SOA non-sp1 non-sp2(
242
243 /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/
244 a.
245 Z.
246 2.
247 ab-c.pq-r.
248 sxk.zzz.ac.uk.
249 x-.y-.
250 *** Failers
251 -abc.peq.
252
253 /^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/
254 *.a
255 *.b0-a
256 *.c3-b.c
257 *.c-a.b-c
258 *** Failers
259 *.0
260 *.a-
261 *.a-b.c-
262 *.c-a.0-c
263
264 /^(?=ab(de))(abd)(e)/
265 abde
266
267 /^(?!(ab)de|x)(abd)(f)/
268 abdf
269
270 /^(?=(ab(cd)))(ab)/
271 abcd
272
273 /^[\da-f](\.[\da-f])*$/i
274 a.b.c.d
275 A.B.C.D
276 a.b.c.1.2.3.C
277
278 /^\".*\"\s*(;.*)?$/
279 \"1234\"
280 \"abcd\" ;
281 \"\" ; rhubarb
282 *** Failers
283 \"1234\" : things
284
285 /^$/
286 \
287 *** Failers
288
289 / ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/x
290 ab c
291 *** Failers
292 abc
293 ab cde
294
295 /(?x) ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/
296 ab c
297 *** Failers
298 abc
299 ab cde
300
301 /^ a\ b[c ]d $/x
302 a bcd
303 a b d
304 *** Failers
305 abcd
306 ab d
307
308 /^(a(b(c)))(d(e(f)))(h(i(j)))(k(l(m)))$/
309 abcdefhijklm
310
311 /^(?:a(b(c)))(?:d(e(f)))(?:h(i(j)))(?:k(l(m)))$/
312 abcdefhijklm
313
314 /^[\w][\W][\s][\S][\d][\D][\b][\n][\c]][\022]/
315 a+ Z0+\x08\n\x1d\x12
316
317 /^[.^$|()*+?{,}]+/
318 .^\$(*+)|{?,?}
319
320 /^a*\w/
321 z
322 az
323 aaaz
324 a
325 aa
326 aaaa
327 a+
328 aa+
329
330 /^a*?\w/
331 z
332 az
333 aaaz
334 a
335 aa
336 aaaa
337 a+
338 aa+
339
340 /^a+\w/
341 az
342 aaaz
343 aa
344 aaaa
345 aa+
346
347 /^a+?\w/
348 az
349 aaaz
350 aa
351 aaaa
352 aa+
353
354 /^\d{8}\w{2,}/
355 1234567890
356 12345678ab
357 12345678__
358 *** Failers
359 1234567
360
361 /^[aeiou\d]{4,5}$/
362 uoie
363 1234
364 12345
365 aaaaa
366 *** Failers
367 123456
368
369 /^[aeiou\d]{4,5}?/
370 uoie
371 1234
372 12345
373 aaaaa
374 123456
375
376 /\A(abc|def)=(\1){2,3}\Z/
377 abc=abcabc
378 def=defdefdef
379 *** Failers
380 abc=defdef
381
382 /^(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\11*(\3\4)\1(?#)2$/
383 abcdefghijkcda2
384 abcdefghijkkkkcda2
385
386 /(cat(a(ract|tonic)|erpillar)) \1()2(3)/
387 cataract cataract23
388 catatonic catatonic23
389 caterpillar caterpillar23
390
391
392 /^From +([^ ]+) +[a-zA-Z][a-zA-Z][a-zA-Z] +[a-zA-Z][a-zA-Z][a-zA-Z] +[0-9]?[0-9] +[0-9][0-9]:[0-9][0-9]/
393 From abcd Mon Sep 01 12:33:02 1997
394
395 /^From\s+\S+\s+([a-zA-Z]{3}\s+){2}\d{1,2}\s+\d\d:\d\d/
396 From abcd Mon Sep 01 12:33:02 1997
397 From abcd Mon Sep 1 12:33:02 1997
398 *** Failers
399 From abcd Sep 01 12:33:02 1997
400
401 /^12.34/s
402 12\n34
403 12\r34
404
405 /\w+(?=\t)/
406 the quick brown\t fox
407
408 /foo(?!bar)(.*)/
409 foobar is foolish see?
410
411 /(?:(?!foo)...|^.{0,2})bar(.*)/
412 foobar crowbar etc
413 barrel
414 2barrel
415 A barrel
416
417 /^(\D*)(?=\d)(?!123)/
418 abc456
419 *** Failers
420 abc123
421
422 /^1234(?# test newlines
423 inside)/
424 1234
425
426 /^1234 #comment in extended re
427 /x
428 1234
429
430 /#rhubarb
431 abcd/x
432 abcd
433
434 /^abcd#rhubarb/x
435 abcd
436
437 /^(a)\1{2,3}(.)/
438 aaab
439 aaaab
440 aaaaab
441 aaaaaab
442
443 /(?!^)abc/
444 the abc
445 *** Failers
446 abc
447
448 /(?=^)abc/
449 abc
450 *** Failers
451 the abc
452
453 /^[ab]{1,3}(ab*|b)/
454 aabbbbb
455
456 /^[ab]{1,3}?(ab*|b)/
457 aabbbbb
458
459 /^[ab]{1,3}?(ab*?|b)/
460 aabbbbb
461
462 /^[ab]{1,3}(ab*?|b)/
463 aabbbbb
464
465 / (?: [\040\t] | \(
466 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
467 \) )* # optional leading comment
468 (?: (?:
469 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
470 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
471 |
472 " (?: # opening quote...
473 [^\\\x80-\xff\n\015"] # Anything except backslash and quote
474 | # or
475 \\ [^\x80-\xff] # Escaped something (something != CR)
476 )* " # closing quote
477 ) # initial word
478 (?: (?: [\040\t] | \(
479 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
480 \) )* \. (?: [\040\t] | \(
481 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
482 \) )* (?:
483 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
484 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
485 |
486 " (?: # opening quote...
487 [^\\\x80-\xff\n\015"] # Anything except backslash and quote
488 | # or
489 \\ [^\x80-\xff] # Escaped something (something != CR)
490 )* " # closing quote
491 ) )* # further okay, if led by a period
492 (?: [\040\t] | \(
493 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
494 \) )* @ (?: [\040\t] | \(
495 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
496 \) )* (?:
497 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
498 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
499 | \[ # [
500 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
501 \] # ]
502 ) # initial subdomain
503 (?: #
504 (?: [\040\t] | \(
505 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
506 \) )* \. # if led by a period...
507 (?: [\040\t] | \(
508 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
509 \) )* (?:
510 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
511 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
512 | \[ # [
513 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
514 \] # ]
515 ) # ...further okay
516 )*
517 # address
518 | # or
519 (?:
520 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
521 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
522 |
523 " (?: # opening quote...
524 [^\\\x80-\xff\n\015"] # Anything except backslash and quote
525 | # or
526 \\ [^\x80-\xff] # Escaped something (something != CR)
527 )* " # closing quote
528 ) # one word, optionally followed by....
529 (?:
530 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] | # atom and space parts, or...
531 \(
532 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
533 \) | # comments, or...
534
535 " (?: # opening quote...
536 [^\\\x80-\xff\n\015"] # Anything except backslash and quote
537 | # or
538 \\ [^\x80-\xff] # Escaped something (something != CR)
539 )* " # closing quote
540 # quoted strings
541 )*
542 < (?: [\040\t] | \(
543 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
544 \) )* # leading <
545 (?: @ (?: [\040\t] | \(
546 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
547 \) )* (?:
548 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
549 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
550 | \[ # [
551 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
552 \] # ]
553 ) # initial subdomain
554 (?: #
555 (?: [\040\t] | \(
556 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
557 \) )* \. # if led by a period...
558 (?: [\040\t] | \(
559 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
560 \) )* (?:
561 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
562 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
563 | \[ # [
564 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
565 \] # ]
566 ) # ...further okay
567 )*
568
569 (?: (?: [\040\t] | \(
570 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
571 \) )* , (?: [\040\t] | \(
572 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
573 \) )* @ (?: [\040\t] | \(
574 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
575 \) )* (?:
576 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
577 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
578 | \[ # [
579 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
580 \] # ]
581 ) # initial subdomain
582 (?: #
583 (?: [\040\t] | \(
584 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
585 \) )* \. # if led by a period...
586 (?: [\040\t] | \(
587 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
588 \) )* (?:
589 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
590 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
591 | \[ # [
592 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
593 \] # ]
594 ) # ...further okay
595 )*
596 )* # further okay, if led by comma
597 : # closing colon
598 (?: [\040\t] | \(
599 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
600 \) )* )? # optional route
601 (?:
602 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
603 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
604 |
605 " (?: # opening quote...
606 [^\\\x80-\xff\n\015"] # Anything except backslash and quote
607 | # or
608 \\ [^\x80-\xff] # Escaped something (something != CR)
609 )* " # closing quote
610 ) # initial word
611 (?: (?: [\040\t] | \(
612 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
613 \) )* \. (?: [\040\t] | \(
614 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
615 \) )* (?:
616 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
617 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
618 |
619 " (?: # opening quote...
620 [^\\\x80-\xff\n\015"] # Anything except backslash and quote
621 | # or
622 \\ [^\x80-\xff] # Escaped something (something != CR)
623 )* " # closing quote
624 ) )* # further okay, if led by a period
625 (?: [\040\t] | \(
626 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
627 \) )* @ (?: [\040\t] | \(
628 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
629 \) )* (?:
630 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
631 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
632 | \[ # [
633 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
634 \] # ]
635 ) # initial subdomain
636 (?: #
637 (?: [\040\t] | \(
638 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
639 \) )* \. # if led by a period...
640 (?: [\040\t] | \(
641 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
642 \) )* (?:
643 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
644 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
645 | \[ # [
646 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
647 \] # ]
648 ) # ...further okay
649 )*
650 # address spec
651 (?: [\040\t] | \(
652 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
653 \) )* > # trailing >
654 # name and address
655 ) (?: [\040\t] | \(
656 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )*
657 \) )* # optional trailing comment
658 /x
659 Alan Other <user\@dom.ain>
660 <user\@dom.ain>
661 user\@dom.ain
662 \"A. Other\" <user.1234\@dom.ain> (a comment)
663 A. Other <user.1234\@dom.ain> (a comment)
664 \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay
665 A missing angle <user\@some.where
666 *** Failers
667 The quick brown fox
668
669 /[\040\t]* # Nab whitespace.
670 (?:
671 \( # (
672 [^\\\x80-\xff\n\015()] * # normal*
673 (?: # (
674 (?: \\ [^\x80-\xff] |
675 \( # (
676 [^\\\x80-\xff\n\015()] * # normal*
677 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
678 \) # )
679 ) # special
680 [^\\\x80-\xff\n\015()] * # normal*
681 )* # )*
682 \) # )
683 [\040\t]* )* # If comment found, allow more spaces.
684 # optional leading comment
685 (?:
686 (?:
687 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
688 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
689 # Atom
690 | # or
691 " # "
692 [^\\\x80-\xff\n\015"] * # normal
693 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )*
694 " # "
695 # Quoted string
696 )
697 [\040\t]* # Nab whitespace.
698 (?:
699 \( # (
700 [^\\\x80-\xff\n\015()] * # normal*
701 (?: # (
702 (?: \\ [^\x80-\xff] |
703 \( # (
704 [^\\\x80-\xff\n\015()] * # normal*
705 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
706 \) # )
707 ) # special
708 [^\\\x80-\xff\n\015()] * # normal*
709 )* # )*
710 \) # )
711 [\040\t]* )* # If comment found, allow more spaces.
712 (?:
713 \.
714 [\040\t]* # Nab whitespace.
715 (?:
716 \( # (
717 [^\\\x80-\xff\n\015()] * # normal*
718 (?: # (
719 (?: \\ [^\x80-\xff] |
720 \( # (
721 [^\\\x80-\xff\n\015()] * # normal*
722 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
723 \) # )
724 ) # special
725 [^\\\x80-\xff\n\015()] * # normal*
726 )* # )*
727 \) # )
728 [\040\t]* )* # If comment found, allow more spaces.
729 (?:
730 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
731 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
732 # Atom
733 | # or
734 " # "
735 [^\\\x80-\xff\n\015"] * # normal
736 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )*
737 " # "
738 # Quoted string
739 )
740 [\040\t]* # Nab whitespace.
741 (?:
742 \( # (
743 [^\\\x80-\xff\n\015()] * # normal*
744 (?: # (
745 (?: \\ [^\x80-\xff] |
746 \( # (
747 [^\\\x80-\xff\n\015()] * # normal*
748 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
749 \) # )
750 ) # special
751 [^\\\x80-\xff\n\015()] * # normal*
752 )* # )*
753 \) # )
754 [\040\t]* )* # If comment found, allow more spaces.
755 # additional words
756 )*
757 @
758 [\040\t]* # Nab whitespace.
759 (?:
760 \( # (
761 [^\\\x80-\xff\n\015()] * # normal*
762 (?: # (
763 (?: \\ [^\x80-\xff] |
764 \( # (
765 [^\\\x80-\xff\n\015()] * # normal*
766 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
767 \) # )
768 ) # special
769 [^\\\x80-\xff\n\015()] * # normal*
770 )* # )*
771 \) # )
772 [\040\t]* )* # If comment found, allow more spaces.
773 (?:
774 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
775 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
776 |
777 \[ # [
778 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
779 \] # ]
780 )
781 [\040\t]* # Nab whitespace.
782 (?:
783 \( # (
784 [^\\\x80-\xff\n\015()] * # normal*
785 (?: # (
786 (?: \\ [^\x80-\xff] |
787 \( # (
788 [^\\\x80-\xff\n\015()] * # normal*
789 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
790 \) # )
791 ) # special
792 [^\\\x80-\xff\n\015()] * # normal*
793 )* # )*
794 \) # )
795 [\040\t]* )* # If comment found, allow more spaces.
796 # optional trailing comments
797 (?:
798 \.
799 [\040\t]* # Nab whitespace.
800 (?:
801 \( # (
802 [^\\\x80-\xff\n\015()] * # normal*
803 (?: # (
804 (?: \\ [^\x80-\xff] |
805 \( # (
806 [^\\\x80-\xff\n\015()] * # normal*
807 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
808 \) # )
809 ) # special
810 [^\\\x80-\xff\n\015()] * # normal*
811 )* # )*
812 \) # )
813 [\040\t]* )* # If comment found, allow more spaces.
814 (?:
815 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
816 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
817 |
818 \[ # [
819 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
820 \] # ]
821 )
822 [\040\t]* # Nab whitespace.
823 (?:
824 \( # (
825 [^\\\x80-\xff\n\015()] * # normal*
826 (?: # (
827 (?: \\ [^\x80-\xff] |
828 \( # (
829 [^\\\x80-\xff\n\015()] * # normal*
830 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
831 \) # )
832 ) # special
833 [^\\\x80-\xff\n\015()] * # normal*
834 )* # )*
835 \) # )
836 [\040\t]* )* # If comment found, allow more spaces.
837 # optional trailing comments
838 )*
839 # address
840 | # or
841 (?:
842 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
843 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
844 # Atom
845 | # or
846 " # "
847 [^\\\x80-\xff\n\015"] * # normal
848 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )*
849 " # "
850 # Quoted string
851 )
852 # leading word
853 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] * # "normal" atoms and or spaces
854 (?:
855 (?:
856 \( # (
857 [^\\\x80-\xff\n\015()] * # normal*
858 (?: # (
859 (?: \\ [^\x80-\xff] |
860 \( # (
861 [^\\\x80-\xff\n\015()] * # normal*
862 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
863 \) # )
864 ) # special
865 [^\\\x80-\xff\n\015()] * # normal*
866 )* # )*
867 \) # )
868 |
869 " # "
870 [^\\\x80-\xff\n\015"] * # normal
871 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )*
872 " # "
873 ) # "special" comment or quoted string
874 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] * # more "normal"
875 )*
876 <
877 [\040\t]* # Nab whitespace.
878 (?:
879 \( # (
880 [^\\\x80-\xff\n\015()] * # normal*
881 (?: # (
882 (?: \\ [^\x80-\xff] |
883 \( # (
884 [^\\\x80-\xff\n\015()] * # normal*
885 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
886 \) # )
887 ) # special
888 [^\\\x80-\xff\n\015()] * # normal*
889 )* # )*
890 \) # )
891 [\040\t]* )* # If comment found, allow more spaces.
892 # <
893 (?:
894 @
895 [\040\t]* # Nab whitespace.
896 (?:
897 \( # (
898 [^\\\x80-\xff\n\015()] * # normal*
899 (?: # (
900 (?: \\ [^\x80-\xff] |
901 \( # (
902 [^\\\x80-\xff\n\015()] * # normal*
903 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
904 \) # )
905 ) # special
906 [^\\\x80-\xff\n\015()] * # normal*
907 )* # )*
908 \) # )
909 [\040\t]* )* # If comment found, allow more spaces.
910 (?:
911 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
912 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
913 |
914 \[ # [
915 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
916 \] # ]
917 )
918 [\040\t]* # Nab whitespace.
919 (?:
920 \( # (
921 [^\\\x80-\xff\n\015()] * # normal*
922 (?: # (
923 (?: \\ [^\x80-\xff] |
924 \( # (
925 [^\\\x80-\xff\n\015()] * # normal*
926 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
927 \) # )
928 ) # special
929 [^\\\x80-\xff\n\015()] * # normal*
930 )* # )*
931 \) # )
932 [\040\t]* )* # If comment found, allow more spaces.
933 # optional trailing comments
934 (?:
935 \.
936 [\040\t]* # Nab whitespace.
937 (?:
938 \( # (
939 [^\\\x80-\xff\n\015()] * # normal*
940 (?: # (
941 (?: \\ [^\x80-\xff] |
942 \( # (
943 [^\\\x80-\xff\n\015()] * # normal*
944 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
945 \) # )
946 ) # special
947 [^\\\x80-\xff\n\015()] * # normal*
948 )* # )*
949 \) # )
950 [\040\t]* )* # If comment found, allow more spaces.
951 (?:
952 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
953 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
954 |
955 \[ # [
956 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
957 \] # ]
958 )
959 [\040\t]* # Nab whitespace.
960 (?:
961 \( # (
962 [^\\\x80-\xff\n\015()] * # normal*
963 (?: # (
964 (?: \\ [^\x80-\xff] |
965 \( # (
966 [^\\\x80-\xff\n\015()] * # normal*
967 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
968 \) # )
969 ) # special
970 [^\\\x80-\xff\n\015()] * # normal*
971 )* # )*
972 \) # )
973 [\040\t]* )* # If comment found, allow more spaces.
974 # optional trailing comments
975 )*
976 (?: ,
977 [\040\t]* # Nab whitespace.
978 (?:
979 \( # (
980 [^\\\x80-\xff\n\015()] * # normal*
981 (?: # (
982 (?: \\ [^\x80-\xff] |
983 \( # (
984 [^\\\x80-\xff\n\015()] * # normal*
985 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
986 \) # )
987 ) # special
988 [^\\\x80-\xff\n\015()] * # normal*
989 )* # )*
990 \) # )
991 [\040\t]* )* # If comment found, allow more spaces.
992 @
993 [\040\t]* # Nab whitespace.
994 (?:
995 \( # (
996 [^\\\x80-\xff\n\015()] * # normal*
997 (?: # (
998 (?: \\ [^\x80-\xff] |
999 \( # (
1000 [^\\\x80-\xff\n\015()] * # normal*
1001 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1002 \) # )
1003 ) # special
1004 [^\\\x80-\xff\n\015()] * # normal*
1005 )* # )*
1006 \) # )
1007 [\040\t]* )* # If comment found, allow more spaces.
1008 (?:
1009 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
1010 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1011 |
1012 \[ # [
1013 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
1014 \] # ]
1015 )
1016 [\040\t]* # Nab whitespace.
1017 (?:
1018 \( # (
1019 [^\\\x80-\xff\n\015()] * # normal*
1020 (?: # (
1021 (?: \\ [^\x80-\xff] |
1022 \( # (
1023 [^\\\x80-\xff\n\015()] * # normal*
1024 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1025 \) # )
1026 ) # special
1027 [^\\\x80-\xff\n\015()] * # normal*
1028 )* # )*
1029 \) # )
1030 [\040\t]* )* # If comment found, allow more spaces.
1031 # optional trailing comments
1032 (?:
1033 \.
1034 [\040\t]* # Nab whitespace.
1035 (?:
1036 \( # (
1037 [^\\\x80-\xff\n\015()] * # normal*
1038 (?: # (
1039 (?: \\ [^\x80-\xff] |
1040 \( # (
1041 [^\\\x80-\xff\n\015()] * # normal*
1042 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1043 \) # )
1044 ) # special
1045 [^\\\x80-\xff\n\015()] * # normal*
1046 )* # )*
1047 \) # )
1048 [\040\t]* )* # If comment found, allow more spaces.
1049 (?:
1050 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
1051 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1052 |
1053 \[ # [
1054 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
1055 \] # ]
1056 )
1057 [\040\t]* # Nab whitespace.
1058 (?:
1059 \( # (
1060 [^\\\x80-\xff\n\015()] * # normal*
1061 (?: # (
1062 (?: \\ [^\x80-\xff] |
1063 \( # (
1064 [^\\\x80-\xff\n\015()] * # normal*
1065 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1066 \) # )
1067 ) # special
1068 [^\\\x80-\xff\n\015()] * # normal*
1069 )* # )*
1070 \) # )
1071 [\040\t]* )* # If comment found, allow more spaces.
1072 # optional trailing comments
1073 )*
1074 )* # additional domains
1075 :
1076 [\040\t]* # Nab whitespace.
1077 (?:
1078 \( # (
1079 [^\\\x80-\xff\n\015()] * # normal*
1080 (?: # (
1081 (?: \\ [^\x80-\xff] |
1082 \( # (
1083 [^\\\x80-\xff\n\015()] * # normal*
1084 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1085 \) # )
1086 ) # special
1087 [^\\\x80-\xff\n\015()] * # normal*
1088 )* # )*
1089 \) # )
1090 [\040\t]* )* # If comment found, allow more spaces.
1091 # optional trailing comments
1092 )? # optional route
1093 (?:
1094 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
1095 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1096 # Atom
1097 | # or
1098 " # "
1099 [^\\\x80-\xff\n\015"] * # normal
1100 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )*
1101 " # "
1102 # Quoted string
1103 )
1104 [\040\t]* # Nab whitespace.
1105 (?:
1106 \( # (
1107 [^\\\x80-\xff\n\015()] * # normal*
1108 (?: # (
1109 (?: \\ [^\x80-\xff] |
1110 \( # (
1111 [^\\\x80-\xff\n\015()] * # normal*
1112 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1113 \) # )
1114 ) # special
1115 [^\\\x80-\xff\n\015()] * # normal*
1116 )* # )*
1117 \) # )
1118 [\040\t]* )* # If comment found, allow more spaces.
1119 (?:
1120 \.
1121 [\040\t]* # Nab whitespace.
1122 (?:
1123 \( # (
1124 [^\\\x80-\xff\n\015()] * # normal*
1125 (?: # (
1126 (?: \\ [^\x80-\xff] |
1127 \( # (
1128 [^\\\x80-\xff\n\015()] * # normal*
1129 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1130 \) # )
1131 ) # special
1132 [^\\\x80-\xff\n\015()] * # normal*
1133 )* # )*
1134 \) # )
1135 [\040\t]* )* # If comment found, allow more spaces.
1136 (?:
1137 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
1138 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1139 # Atom
1140 | # or
1141 " # "
1142 [^\\\x80-\xff\n\015"] * # normal
1143 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )*
1144 " # "
1145 # Quoted string
1146 )
1147 [\040\t]* # Nab whitespace.
1148 (?:
1149 \( # (
1150 [^\\\x80-\xff\n\015()] * # normal*
1151 (?: # (
1152 (?: \\ [^\x80-\xff] |
1153 \( # (
1154 [^\\\x80-\xff\n\015()] * # normal*
1155 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1156 \) # )
1157 ) # special
1158 [^\\\x80-\xff\n\015()] * # normal*
1159 )* # )*
1160 \) # )
1161 [\040\t]* )* # If comment found, allow more spaces.
1162 # additional words
1163 )*
1164 @
1165 [\040\t]* # Nab whitespace.
1166 (?:
1167 \( # (
1168 [^\\\x80-\xff\n\015()] * # normal*
1169 (?: # (
1170 (?: \\ [^\x80-\xff] |
1171 \( # (
1172 [^\\\x80-\xff\n\015()] * # normal*
1173 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1174 \) # )
1175 ) # special
1176 [^\\\x80-\xff\n\015()] * # normal*
1177 )* # )*
1178 \) # )
1179 [\040\t]* )* # If comment found, allow more spaces.
1180 (?:
1181 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
1182 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1183 |
1184 \[ # [
1185 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
1186 \] # ]
1187 )
1188 [\040\t]* # Nab whitespace.
1189 (?:
1190 \( # (
1191 [^\\\x80-\xff\n\015()] * # normal*
1192 (?: # (
1193 (?: \\ [^\x80-\xff] |
1194 \( # (
1195 [^\\\x80-\xff\n\015()] * # normal*
1196 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1197 \) # )
1198 ) # special
1199 [^\\\x80-\xff\n\015()] * # normal*
1200 )* # )*
1201 \) # )
1202 [\040\t]* )* # If comment found, allow more spaces.
1203 # optional trailing comments
1204 (?:
1205 \.
1206 [\040\t]* # Nab whitespace.
1207 (?:
1208 \( # (
1209 [^\\\x80-\xff\n\015()] * # normal*
1210 (?: # (
1211 (?: \\ [^\x80-\xff] |
1212 \( # (
1213 [^\\\x80-\xff\n\015()] * # normal*
1214 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1215 \) # )
1216 ) # special
1217 [^\\\x80-\xff\n\015()] * # normal*
1218 )* # )*
1219 \) # )
1220 [\040\t]* )* # If comment found, allow more spaces.
1221 (?:
1222 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters...
1223 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1224 |
1225 \[ # [
1226 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff
1227 \] # ]
1228 )
1229 [\040\t]* # Nab whitespace.
1230 (?:
1231 \( # (
1232 [^\\\x80-\xff\n\015()] * # normal*
1233 (?: # (
1234 (?: \\ [^\x80-\xff] |
1235 \( # (
1236 [^\\\x80-\xff\n\015()] * # normal*
1237 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)*
1238 \) # )
1239 ) # special
1240 [^\\\x80-\xff\n\015()] * # normal*
1241 )* # )*
1242 \) # )
1243 [\040\t]* )* # If comment found, allow more spaces.
1244 # optional trailing comments
1245 )*
1246 # address spec
1247 > # >
1248 # name and address
1249 )
1250 /x
1251 Alan Other <user\@dom.ain>
1252 <user\@dom.ain>
1253 user\@dom.ain
1254 \"A. Other\" <user.1234\@dom.ain> (a comment)
1255 A. Other <user.1234\@dom.ain> (a comment)
1256 \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay
1257 A missing angle <user\@some.where
1258 *** Failers
1259 The quick brown fox
1260
1261 /abc\0def\00pqr\000xyz\0000AB/
1262 abc\0def\00pqr\000xyz\0000AB
1263 abc456 abc\0def\00pqr\000xyz\0000ABCDE
1264
1265 /abc\x0def\x00pqr\x000xyz\x0000AB/
1266 abc\x0def\x00pqr\x000xyz\x0000AB
1267 abc456 abc\x0def\x00pqr\x000xyz\x0000ABCDE
1268
1269 /^[\000-\037]/
1270 \0A
1271 \01B
1272 \037C
1273
1274 /\0*/
1275 \0\0\0\0
1276
1277 /A\x0{2,3}Z/
1278 The A\x0\x0Z
1279 An A\0\x0\0Z
1280 *** Failers
1281 A\0Z
1282 A\0\x0\0\x0Z
1283
1284 /^(cow|)\1(bell)/
1285 cowcowbell
1286 bell
1287 *** Failers
1288 cowbell
1289
1290 /^\s/
1291 \040abc
1292 \x0cabc
1293 \nabc
1294 \rabc
1295 \tabc
1296 *** Failers
1297 abc
1298
1299 /^a b
1300 c/x
1301 abc
1302
1303 /^(a|)\1*b/
1304 ab
1305 aaaab
1306 b
1307 *** Failers
1308 acb
1309
1310 /^(a|)\1+b/
1311 aab
1312 aaaab
1313 b
1314 *** Failers
1315 ab
1316
1317 /^(a|)\1?b/
1318 ab
1319 aab
1320 b
1321 *** Failers
1322 acb
1323
1324 /^(a|)\1{2}b/
1325 aaab
1326 b
1327 *** Failers
1328 ab
1329 aab
1330 aaaab
1331
1332 /^(a|)\1{2,3}b/
1333 aaab
1334 aaaab
1335 b
1336 *** Failers
1337 ab
1338 aab
1339 aaaaab
1340
1341 /ab{1,3}bc/
1342 abbbbc
1343 abbbc
1344 abbc
1345 *** Failers
1346 abc
1347 abbbbbc
1348
1349 /([^.]*)\.([^:]*):[T ]+(.*)/
1350 track1.title:TBlah blah blah
1351
1352 /([^.]*)\.([^:]*):[T ]+(.*)/i
1353 track1.title:TBlah blah blah
1354
1355 /([^.]*)\.([^:]*):[t ]+(.*)/i
1356 track1.title:TBlah blah blah
1357
1358 /^[W-c]+$/
1359 WXY_^abc
1360 *** Failers
1361 wxy
1362
1363 /^[W-c]+$/i
1364 WXY_^abc
1365 wxy_^ABC
1366
1367 /^[\x3f-\x5F]+$/i
1368 WXY_^abc
1369 wxy_^ABC
1370
1371 /^abc$/m
1372 abc
1373 qqq\nabc
1374 abc\nzzz
1375 qqq\nabc\nzzz
1376
1377 /^abc$/
1378 abc
1379 *** Failers
1380 qqq\nabc
1381 abc\nzzz
1382 qqq\nabc\nzzz
1383
1384 /\Aabc\Z/m
1385 abc
1386 abc\n
1387 *** Failers
1388 qqq\nabc
1389 abc\nzzz
1390 qqq\nabc\nzzz
1391
1392 /\A(.)*\Z/s
1393 abc\ndef
1394
1395 /\A(.)*\Z/m
1396 *** Failers
1397 abc\ndef
1398
1399 /(?:b)|(?::+)/
1400 b::c
1401 c::b
1402
1403 /[-az]+/
1404 az-
1405 *** Failers
1406 b
1407
1408 /[az-]+/
1409 za-
1410 *** Failers
1411 b
1412
1413 /[a\-z]+/
1414 a-z
1415 *** Failers
1416 b
1417
1418 /[a-z]+/
1419 abcdxyz
1420
1421 /[\d-]+/
1422 12-34
1423 *** Failers
1424 aaa
1425
1426 /[\d-z]+/
1427 12-34z
1428 *** Failers
1429 aaa
1430
1431 /\x5c/
1432 \\
1433
1434 /\x20Z/
1435 the Zoo
1436 *** Failers
1437 Zulu
1438
1439 /(abc)\1/i
1440 abcabc
1441 ABCabc
1442 abcABC
1443
1444 /ab{3cd/
1445 ab{3cd
1446
1447 /ab{3,cd/
1448 ab{3,cd
1449
1450 /ab{3,4a}cd/
1451 ab{3,4a}cd
1452
1453 /{4,5a}bc/
1454 {4,5a}bc
1455
1456 /abc$/
1457 abc
1458 abc\n
1459 *** Failers
1460 abc\ndef
1461
1462 /(abc)\123/
1463 abc\x53
1464
1465 /(abc)\223/
1466 abc\x93
1467
1468 /(abc)\323/
1469 abc\xd3
1470
1471 /(abc)\100/
1472 abc\x40
1473 abc\100
1474
1475 /(abc)\1000/
1476 abc\x400
1477 abc\x40\x30
1478 abc\1000
1479 abc\100\x30
1480 abc\100\060
1481 abc\100\60
1482
1483 /abc\81/
1484 abc\081
1485 abc\0\x38\x31
1486
1487 /abc\91/
1488 abc\091
1489 abc\0\x39\x31
1490
1491 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\12\123/
1492 abcdefghijkllS
1493
1494 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\12\123/
1495 abcdefghijk\12S
1496
1497 /ab\hdef/
1498 abhdef
1499
1500 /a{0}bc/
1501 bc
1502
1503 /(a|(bc)){0,0}?xyz/
1504 xyz
1505
1506 /abc[\10]de/
1507 abc\010de
1508
1509 /abc[\1]de/
1510 abc\1de
1511
1512 /(abc)[\1]de/
1513 abc\1de
1514
1515 /(?s)a.b/
1516 a\nb
1517
1518 /^([^a])([^\b])([^c]*)([^d]{3,4})/
1519 baNOTccccd
1520 baNOTcccd
1521 baNOTccd
1522 bacccd
1523 *** Failers
1524 anything
1525 b\bc
1526 baccd
1527
1528 /[^a]/
1529 Abc
1530
1531 /[^a]/i
1532 Abc
1533
1534 /[^a]+/
1535 AAAaAbc
1536
1537 /[^a]+/i
1538 AAAaAbc
1539
1540 /[^a]+/
1541 bbb\nccc
1542
1543 /[^k]$/
1544 abc
1545 *** Failers
1546 abk
1547
1548 /[^k]{2,3}$/
1549 abc
1550 kbc
1551 kabc
1552 *** Failers
1553 abk
1554 akb
1555 akk
1556
1557 /^\d{8,}\@.+[^k]$/
1558 12345678\@a.b.c.d
1559 123456789\@x.y.z
1560 *** Failers
1561 12345678\@x.y.uk
1562 1234567\@a.b.c.d
1563
1564 /(a)\1{8,}/
1565 aaaaaaaaa
1566 aaaaaaaaaa
1567 *** Failers
1568 aaaaaaa
1569
1570 /[^a]/
1571 aaaabcd
1572 aaAabcd
1573
1574 /[^a]/i
1575 aaaabcd
1576 aaAabcd
1577
1578 /[^az]/
1579 aaaabcd
1580 aaAabcd
1581
1582 /[^az]/i
1583 aaaabcd
1584 aaAabcd
1585
1586 /\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377/
1587 \000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377
1588
1589 /P[^*]TAIRE[^*]{1,6}?LL/
1590 xxxxxxxxxxxPSTAIREISLLxxxxxxxxx
1591
1592 /P[^*]TAIRE[^*]{1,}?LL/
1593 xxxxxxxxxxxPSTAIREISLLxxxxxxxxx
1594
1595 /(\.\d\d[1-9]?)\d+/
1596 1.230003938
1597 1.875000282
1598 1.235
1599
1600 /(\.\d\d((?=0)|\d(?=\d)))/
1601 1.230003938
1602 1.875000282
1603 *** Failers
1604 1.235
1605
1606 /a(?)b/
1607 ab
1608
1609 /\b(foo)\s+(\w+)/i
1610 Food is on the foo table
1611
1612 /foo(.*)bar/
1613 The food is under the bar in the barn.
1614
1615 /foo(.*?)bar/
1616 The food is under the bar in the barn.
1617
1618 /(.*)(\d*)/
1619 I have 2 numbers: 53147
1620
1621 /(.*)(\d+)/
1622 I have 2 numbers: 53147
1623
1624 /(.*?)(\d*)/
1625 I have 2 numbers: 53147
1626
1627 /(.*?)(\d+)/
1628 I have 2 numbers: 53147
1629
1630 /(.*)(\d+)$/
1631 I have 2 numbers: 53147
1632
1633 /(.*?)(\d+)$/
1634 I have 2 numbers: 53147
1635
1636 /(.*)\b(\d+)$/
1637 I have 2 numbers: 53147
1638
1639 /(.*\D)(\d+)$/
1640 I have 2 numbers: 53147
1641
1642 /^\D*(?!123)/
1643 ABC123
1644
1645 /^(\D*)(?=\d)(?!123)/
1646 ABC445
1647 *** Failers
1648 ABC123
1649
1650 /^[W-]46]/
1651 W46]789
1652 -46]789
1653 *** Failers
1654 Wall
1655 Zebra
1656 42
1657 [abcd]
1658 ]abcd[
1659
1660 /^[W-\]46]/
1661 W46]789
1662 Wall
1663 Zebra
1664 Xylophone
1665 42
1666 [abcd]
1667 ]abcd[
1668 \\backslash
1669 *** Failers
1670 -46]789
1671 well
1672
1673 /\d\d\/\d\d\/\d\d\d\d/
1674 01/01/2000
1675
1676 /word (?:[a-zA-Z0-9]+ ){0,10}otherword/
1677 word cat dog elephant mussel cow horse canary baboon snake shark otherword
1678 word cat dog elephant mussel cow horse canary baboon snake shark
1679
1680 /word (?:[a-zA-Z0-9]+ ){0,300}otherword/
1681 word cat dog elephant mussel cow horse canary baboon snake shark the quick brown fox and the lazy dog and several other words getting close to thirty by now I hope
1682
1683 /^(a){0,0}/
1684 bcd
1685 abc
1686 aab
1687
1688 /^(a){0,1}/
1689 bcd
1690 abc
1691 aab
1692
1693 /^(a){0,2}/
1694 bcd
1695 abc
1696 aab
1697
1698 /^(a){0,3}/
1699 bcd
1700 abc
1701 aab
1702 aaa
1703
1704 /^(a){0,}/
1705 bcd
1706 abc
1707 aab
1708 aaa
1709 aaaaaaaa
1710
1711 /^(a){1,1}/
1712 bcd
1713 abc
1714 aab
1715
1716 /^(a){1,2}/
1717 bcd
1718 abc
1719 aab
1720
1721 /^(a){1,3}/
1722 bcd
1723 abc
1724 aab
1725 aaa
1726
1727 /^(a){1,}/
1728 bcd
1729 abc
1730 aab
1731 aaa
1732 aaaaaaaa
1733
1734 /.*\.gif/
1735 borfle\nbib.gif\nno
1736
1737 /.{0,}\.gif/
1738 borfle\nbib.gif\nno
1739
1740 /.*\.gif/m
1741 borfle\nbib.gif\nno
1742
1743 /.*\.gif/s
1744 borfle\nbib.gif\nno
1745
1746 /.*\.gif/ms
1747 borfle\nbib.gif\nno
1748
1749 /.*$/
1750 borfle\nbib.gif\nno
1751
1752 /.*$/m
1753 borfle\nbib.gif\nno
1754
1755 /.*$/s
1756 borfle\nbib.gif\nno
1757
1758 /.*$/ms
1759 borfle\nbib.gif\nno
1760
1761 /.*$/
1762 borfle\nbib.gif\nno\n
1763
1764 /.*$/m
1765 borfle\nbib.gif\nno\n
1766
1767 /.*$/s
1768 borfle\nbib.gif\nno\n
1769
1770 /.*$/ms
1771 borfle\nbib.gif\nno\n
1772
1773 /(.*X|^B)/
1774 abcde\n1234Xyz
1775 BarFoo
1776 *** Failers
1777 abcde\nBar
1778
1779 /(.*X|^B)/m
1780 abcde\n1234Xyz
1781 BarFoo
1782 abcde\nBar
1783
1784 /(.*X|^B)/s
1785 abcde\n1234Xyz
1786 BarFoo
1787 *** Failers
1788 abcde\nBar
1789
1790 /(.*X|^B)/ms
1791 abcde\n1234Xyz
1792 BarFoo
1793 abcde\nBar
1794
1795 /(?s)(.*X|^B)/
1796 abcde\n1234Xyz
1797 BarFoo
1798 *** Failers
1799 abcde\nBar
1800
1801 /(?s:.*X|^B)/
1802 abcde\n1234Xyz
1803 BarFoo
1804 *** Failers
1805 abcde\nBar
1806
1807 /^.*B/
1808 **** Failers
1809 abc\nB
1810
1811 /(?s)^.*B/
1812 abc\nB
1813
1814 /(?m)^.*B/
1815 abc\nB
1816
1817 /(?ms)^.*B/
1818 abc\nB
1819
1820 /(?ms)^B/
1821 abc\nB
1822
1823 /(?s)B$/
1824 B\n
1825
1826 /^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]/
1827 123456654321
1828
1829 /^\d\d\d\d\d\d\d\d\d\d\d\d/
1830 123456654321
1831
1832 /^[\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d]/
1833 123456654321
1834
1835 /^[abc]{12}/
1836 abcabcabcabc
1837
1838 /^[a-c]{12}/
1839 abcabcabcabc
1840
1841 /^(a|b|c){12}/
1842 abcabcabcabc
1843
1844 /^[abcdefghijklmnopqrstuvwxy0123456789]/
1845 n
1846 *** Failers
1847 z
1848
1849 /abcde{0,0}/
1850 abcd
1851 *** Failers
1852 abce
1853
1854 /ab[cd]{0,0}e/
1855 abe
1856 *** Failers
1857 abcde
1858
1859 /ab(c){0,0}d/
1860 abd
1861 *** Failers
1862 abcd
1863
1864 /a(b*)/
1865 a
1866 ab
1867 abbbb
1868 *** Failers
1869 bbbbb
1870
1871 /ab\d{0}e/
1872 abe
1873 *** Failers
1874 ab1e
1875
1876 /"([^\\"]+|\\.)*"/
1877 the \"quick\" brown fox
1878 \"the \\\"quick\\\" brown fox\"
1879
1880 /.*?/g+
1881 abc
1882
1883 /\b/g+
1884 abc
1885
1886 /\b/+g
1887 abc
1888
1889 //g
1890 abc
1891
1892 /<tr([\w\W\s\d][^<>]{0,})><TD([\w\W\s\d][^<>]{0,})>([\d]{0,}\.)(.*)((<BR>([\w\W\s\d][^<>]{0,})|[\s]{0,}))<\/a><\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><\/TR>/is
1893 <TR BGCOLOR='#DBE9E9'><TD align=left valign=top>43.<a href='joblist.cfm?JobID=94 6735&Keyword='>Word Processor<BR>(N-1286)</a></TD><TD align=left valign=top>Lega lstaff.com</TD><TD align=left valign=top>CA - Statewide</TD></TR>
1894
1895 /a[^a]b/
1896 acb
1897 a\nb
1898
1899 /a.b/
1900 acb
1901 *** Failers
1902 a\nb
1903
1904 /a[^a]b/s
1905 acb
1906 a\nb
1907
1908 /a.b/s
1909 acb
1910 a\nb
1911
1912 /^(b+?|a){1,2}?c/
1913 bac
1914 bbac
1915 bbbac
1916 bbbbac
1917 bbbbbac
1918
1919 /^(b+|a){1,2}?c/
1920 bac
1921 bbac
1922 bbbac
1923 bbbbac
1924 bbbbbac
1925
1926 /(?!\A)x/m
1927 x\nb\n
1928 a\bx\n
1929
1930 /\x0{ab}/
1931 \0{ab}
1932
1933 /(A|B)*?CD/
1934 CD
1935
1936 /(A|B)*CD/
1937 CD
1938
1939 /(AB)*?\1/
1940 ABABAB
1941
1942 /(AB)*\1/
1943 ABABAB
1944
1945 /(?<!bar)foo/
1946 foo
1947 catfood
1948 arfootle
1949 rfoosh
1950 *** Failers
1951 barfoo
1952 towbarfoo
1953
1954 /\w{3}(?<!bar)foo/
1955 catfood
1956 *** Failers
1957 foo
1958 barfoo
1959 towbarfoo
1960
1961 /(?<=(foo)a)bar/
1962 fooabar
1963 *** Failers
1964 bar
1965 foobbar
1966
1967 /\Aabc\z/m
1968 abc
1969 *** Failers
1970 abc\n
1971 qqq\nabc
1972 abc\nzzz
1973 qqq\nabc\nzzz
1974
1975 "(?>.*/)foo"
1976 /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/it/you/see/
1977
1978 "(?>.*/)foo"
1979 /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/and/foo
1980
1981 /(?>(\.\d\d[1-9]?))\d+/
1982 1.230003938
1983 1.875000282
1984 *** Failers
1985 1.235
1986
1987 /^((?>\w+)|(?>\s+))*$/
1988 now is the time for all good men to come to the aid of the party
1989 *** Failers
1990 this is not a line with only words and spaces!
1991
1992 /(\d+)(\w)/
1993 12345a
1994 12345+
1995
1996 /((?>\d+))(\w)/
1997 12345a
1998 *** Failers
1999 12345+
2000
2001 /(?>a+)b/
2002 aaab
2003
2004 /((?>a+)b)/
2005 aaab
2006
2007 /(?>(a+))b/
2008 aaab
2009
2010 /(?>b)+/
2011 aaabbbccc
2012
2013 /(?>a+|b+|c+)*c/
2014 aaabbbbccccd
2015
2016 /((?>[^()]+)|\([^()]*\))+/
2017 ((abc(ade)ufh()()x
2018
2019 /\(((?>[^()]+)|\([^()]+\))+\)/
2020 (abc)
2021 (abc(def)xyz)
2022 *** Failers
2023 ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2024
2025 /a(?-i)b/i
2026 ab
2027 Ab
2028 *** Failers
2029 aB
2030 AB
2031
2032 /(a (?x)b c)d e/
2033 a bcd e
2034 *** Failers
2035 a b cd e
2036 abcd e
2037 a bcde
2038
2039 /(a b(?x)c d (?-x)e f)/
2040 a bcde f
2041 *** Failers
2042 abcdef
2043
2044 /(a(?i)b)c/
2045 abc
2046 aBc
2047 *** Failers
2048 abC
2049 aBC
2050 Abc
2051 ABc
2052 ABC
2053 AbC
2054
2055 /a(?i:b)c/
2056 abc
2057 aBc
2058 *** Failers
2059 ABC
2060 abC
2061 aBC
2062
2063 /a(?i:b)*c/
2064 aBc
2065 aBBc
2066 *** Failers
2067 aBC
2068 aBBC
2069
2070 /a(?=b(?i)c)\w\wd/
2071 abcd
2072 abCd
2073 *** Failers
2074 aBCd
2075 abcD
2076
2077 /(?s-i:more.*than).*million/i
2078 more than million
2079 more than MILLION
2080 more \n than Million
2081 *** Failers
2082 MORE THAN MILLION
2083 more \n than \n million
2084
2085 /(?:(?s-i)more.*than).*million/i
2086 more than million
2087 more than MILLION
2088 more \n than Million
2089 *** Failers
2090 MORE THAN MILLION
2091 more \n than \n million
2092
2093 /(?>a(?i)b+)+c/
2094 abc
2095 aBbc
2096 aBBc
2097 *** Failers
2098 Abc
2099 abAb
2100 abbC
2101
2102 /(?=a(?i)b)\w\wc/
2103 abc
2104 aBc
2105 *** Failers
2106 Ab
2107 abC
2108 aBC
2109
2110 /(?<=a(?i)b)(\w\w)c/
2111 abxxc
2112 aBxxc
2113 *** Failers
2114 Abxxc
2115 ABxxc
2116 abxxC
2117
2118 /(?:(a)|b)(?(1)A|B)/
2119 aA
2120 bB
2121 *** Failers
2122 aB
2123 bA
2124
2125 /^(a)?(?(1)a|b)+$/
2126 aa
2127 b
2128 bb
2129 *** Failers
2130 ab
2131
2132 /^(?(?=abc)\w{3}:|\d\d)$/
2133 abc:
2134 12
2135 *** Failers
2136 123
2137 xyz
2138
2139 /^(?(?!abc)\d\d|\w{3}:)$/
2140 abc:
2141 12
2142 *** Failers
2143 123
2144 xyz
2145
2146 /(?(?<=foo)bar|cat)/
2147 foobar
2148 cat
2149 fcat
2150 focat
2151 *** Failers
2152 foocat
2153
2154 /(?(?<!foo)cat|bar)/
2155 foobar
2156 cat
2157 fcat
2158 focat
2159 *** Failers
2160 foocat
2161
2162 /( \( )? [^()]+ (?(1) \) |) /x
2163 abcd
2164 (abcd)
2165 the quick (abcd) fox
2166 (abcd
2167
2168 /( \( )? [^()]+ (?(1) \) ) /x
2169 abcd
2170 (abcd)
2171 the quick (abcd) fox
2172 (abcd
2173
2174 /^(?(2)a|(1)(2))+$/
2175 12
2176 12a
2177 12aa
2178 *** Failers
2179 1234
2180
2181 /((?i)blah)\s+\1/
2182 blah blah
2183 BLAH BLAH
2184 Blah Blah
2185 blaH blaH
2186 *** Failers
2187 blah BLAH
2188 Blah blah
2189 blaH blah
2190
2191 /((?i)blah)\s+(?i:\1)/
2192 blah blah
2193 BLAH BLAH
2194 Blah Blah
2195 blaH blaH
2196 blah BLAH
2197 Blah blah
2198 blaH blah
2199
2200 /(?>a*)*/
2201 a
2202 aa
2203 aaaa
2204
2205 /(abc|)+/
2206 abc
2207 abcabc
2208 abcabcabc
2209 xyz
2210
2211 /([a]*)*/
2212 a
2213 aaaaa
2214
2215 /([ab]*)*/
2216 a
2217 b
2218 ababab
2219 aaaabcde
2220 bbbb
2221
2222 /([^a]*)*/
2223 b
2224 bbbb
2225 aaa
2226
2227 /([^ab]*)*/
2228 cccc
2229 abab
2230
2231 /([a]*?)*/
2232 a
2233 aaaa
2234
2235 /([ab]*?)*/
2236 a
2237 b
2238 abab
2239 baba
2240
2241 /([^a]*?)*/
2242 b
2243 bbbb
2244 aaa
2245
2246 /([^ab]*?)*/
2247 c
2248 cccc
2249 baba
2250
2251 /(?>a*)*/
2252 a
2253 aaabcde
2254
2255 /((?>a*))*/
2256 aaaaa
2257 aabbaa
2258
2259 /((?>a*?))*/
2260 aaaaa
2261 aabbaa
2262
2263 /(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /x
2264 12-sep-98
2265 12-09-98
2266 *** Failers
2267 sep-12-98
2268
2269 /(?<=(foo))bar\1/
2270 foobarfoo
2271 foobarfootling
2272 *** Failers
2273 foobar
2274 barfoo
2275
2276 /(?i:saturday|sunday)/
2277 saturday
2278 sunday
2279 Saturday
2280 Sunday
2281 SATURDAY
2282 SUNDAY
2283 SunDay
2284
2285 /(a(?i)bc|BB)x/
2286 abcx
2287 aBCx
2288 bbx
2289 BBx
2290 *** Failers
2291 abcX
2292 aBCX
2293 bbX
2294 BBX
2295
2296 /^([ab](?i)[cd]|[ef])/
2297 ac
2298 aC
2299 bD
2300 elephant
2301 Europe
2302 frog
2303 France
2304 *** Failers
2305 Africa
2306
2307 /^(ab|a(?i)[b-c](?m-i)d|x(?i)y|z)/
2308 ab
2309 aBd
2310 xy
2311 xY
2312 zebra
2313 Zambesi
2314 *** Failers
2315 aCD
2316 XY
2317
2318 /(?<=foo\n)^bar/m
2319 foo\nbar
2320 *** Failers
2321 bar
2322 baz\nbar
2323
2324 /(?<=(?<!foo)bar)baz/
2325 barbaz
2326 barbarbaz
2327 koobarbaz
2328 *** Failers
2329 baz
2330 foobarbaz
2331
2332 /The case of aaaaaa is missed out below because I think Perl 5.005_02 gets/
2333 /it wrong; it sets $1 to aaa rather than aa. Compare the following test,/
2334 /where it does set $1 to aa when matching aaaaaa./
2335
2336 /^(a\1?){4}$/
2337 a
2338 aa
2339 aaa
2340 aaaa
2341 aaaaa
2342 aaaaaaa
2343 aaaaaaaa
2344 aaaaaaaaa
2345 aaaaaaaaaa
2346 aaaaaaaaaaa
2347 aaaaaaaaaaaa
2348 aaaaaaaaaaaaa
2349 aaaaaaaaaaaaaa
2350 aaaaaaaaaaaaaaa
2351 aaaaaaaaaaaaaaaa
2352
2353 /^(a\1?)(a\1?)(a\2?)(a\3?)$/
2354 a
2355 aa
2356 aaa
2357 aaaa
2358 aaaaa
2359 aaaaaa
2360 aaaaaaa
2361 aaaaaaaa
2362 aaaaaaaaa
2363 aaaaaaaaaa
2364 aaaaaaaaaaa
2365 aaaaaaaaaaaa
2366 aaaaaaaaaaaaa
2367 aaaaaaaaaaaaaa
2368 aaaaaaaaaaaaaaa
2369 aaaaaaaaaaaaaaaa
2370
2371 /The following tests are taken from the Perl 5.005 test suite; some of them/
2372 /are compatible with 5.004, but I'd rather not have to sort them out./
2373
2374 /abc/
2375 abc
2376 xabcy
2377 ababc
2378 *** Failers
2379 xbc
2380 axc
2381 abx
2382
2383 /ab*c/
2384 abc
2385
2386 /ab*bc/
2387 abc
2388 abbc
2389 abbbbc
2390
2391 /.{1}/
2392 abbbbc
2393
2394 /.{3,4}/
2395 abbbbc
2396
2397 /ab{0,}bc/
2398 abbbbc
2399
2400 /ab+bc/
2401 abbc
2402 *** Failers
2403 abc
2404 abq
2405
2406 /ab{1,}bc/
2407
2408 /ab+bc/
2409 abbbbc
2410
2411 /ab{1,}bc/
2412 abbbbc
2413
2414 /ab{1,3}bc/
2415 abbbbc
2416
2417 /ab{3,4}bc/
2418 abbbbc
2419
2420 /ab{4,5}bc/
2421 *** Failers
2422 abq
2423 abbbbc
2424
2425 /ab?bc/
2426 abbc
2427 abc
2428
2429 /ab{0,1}bc/
2430 abc
2431
2432 /ab?bc/
2433
2434 /ab?c/
2435 abc
2436
2437 /ab{0,1}c/
2438 abc
2439
2440 /^abc$/
2441 abc
2442 *** Failers
2443 abbbbc
2444 abcc
2445
2446 /^abc/
2447 abcc
2448
2449 /^abc$/
2450
2451 /abc$/
2452 aabc
2453 *** Failers
2454 aabc
2455 aabcd
2456
2457 /^/
2458 abc
2459
2460 /$/
2461 abc
2462
2463 /a.c/
2464 abc
2465 axc
2466
2467 /a.*c/
2468 axyzc
2469
2470 /a[bc]d/
2471 abd
2472 *** Failers
2473 axyzd
2474 abc
2475
2476 /a[b-d]e/
2477 ace
2478
2479 /a[b-d]/
2480 aac
2481
2482 /a[-b]/
2483 a-
2484
2485 /a[b-]/
2486 a-
2487
2488 /a]/
2489 a]
2490
2491 /a[]]b/
2492 a]b
2493
2494 /a[^bc]d/
2495 aed
2496 *** Failers
2497 abd
2498 abd
2499
2500 /a[^-b]c/
2501 adc
2502
2503 /a[^]b]c/
2504 adc
2505 *** Failers
2506 a-c
2507 a]c
2508
2509 /\ba\b/
2510 a-
2511 -a
2512 -a-
2513
2514 /\by\b/
2515 *** Failers
2516 xy
2517 yz
2518 xyz
2519
2520 /\Ba\B/
2521 *** Failers
2522 a-
2523 -a
2524 -a-
2525
2526 /\By\b/
2527 xy
2528
2529 /\by\B/
2530 yz
2531
2532 /\By\B/
2533 xyz
2534
2535 /\w/
2536 a
2537
2538 /\W/
2539 -
2540 *** Failers
2541 -
2542 a
2543
2544 /a\sb/
2545 a b
2546
2547 /a\Sb/
2548 a-b
2549 *** Failers
2550 a-b
2551 a b
2552
2553 /\d/
2554 1
2555
2556 /\D/
2557 -
2558 *** Failers
2559 -
2560 1
2561
2562 /[\w]/
2563 a
2564
2565 /[\W]/
2566 -
2567 *** Failers
2568 -
2569 a
2570
2571 /a[\s]b/
2572 a b
2573
2574 /a[\S]b/
2575 a-b
2576 *** Failers
2577 a-b
2578 a b
2579
2580 /[\d]/
2581 1
2582
2583 /[\D]/
2584 -
2585 *** Failers
2586 -
2587 1
2588
2589 /ab|cd/
2590 abc
2591 abcd
2592
2593 /()ef/
2594 def
2595
2596 /$b/
2597
2598 /a\(b/
2599 a(b
2600
2601 /a\(*b/
2602 ab
2603 a((b
2604
2605 /a\\b/
2606 a\b
2607
2608 /((a))/
2609 abc
2610
2611 /(a)b(c)/
2612 abc
2613
2614 /a+b+c/
2615 aabbabc
2616
2617 /a{1,}b{1,}c/
2618 aabbabc
2619
2620 /a.+?c/
2621 abcabc
2622
2623 /(a+|b)*/
2624 ab
2625
2626 /(a+|b){0,}/
2627 ab
2628
2629 /(a+|b)+/
2630 ab
2631
2632 /(a+|b){1,}/
2633 ab
2634
2635 /(a+|b)?/
2636 ab
2637
2638 /(a+|b){0,1}/
2639 ab
2640
2641 /[^ab]*/
2642 cde
2643
2644 /abc/
2645 *** Failers
2646 b
2647
2648
2649 /a*/
2650
2651
2652 /([abc])*d/
2653 abbbcd
2654
2655 /([abc])*bcd/
2656 abcd
2657
2658 /a|b|c|d|e/
2659 e
2660
2661 /(a|b|c|d|e)f/
2662 ef
2663
2664 /abcd*efg/
2665 abcdefg
2666
2667 /ab*/
2668 xabyabbbz
2669 xayabbbz
2670
2671 /(ab|cd)e/
2672 abcde
2673
2674 /[abhgefdc]ij/
2675 hij
2676
2677 /^(ab|cd)e/
2678
2679 /(abc|)ef/
2680 abcdef
2681
2682 /(a|b)c*d/
2683 abcd
2684
2685 /(ab|ab*)bc/
2686 abc
2687
2688 /a([bc]*)c*/
2689 abc
2690
2691 /a([bc]*)(c*d)/
2692 abcd
2693
2694 /a([bc]+)(c*d)/
2695 abcd
2696
2697 /a([bc]*)(c+d)/
2698 abcd
2699
2700 /a[bcd]*dcdcde/
2701 adcdcde
2702
2703 /a[bcd]+dcdcde/
2704 *** Failers
2705 abcde
2706 adcdcde
2707
2708 /(ab|a)b*c/
2709 abc
2710
2711 /((a)(b)c)(d)/
2712 abcd
2713
2714 /[a-zA-Z_][a-zA-Z0-9_]*/
2715 alpha
2716
2717 /^a(bc+|b[eh])g|.h$/
2718 abh
2719
2720 /(bc+d$|ef*g.|h?i(j|k))/
2721 effgz
2722 ij
2723 reffgz
2724 *** Failers
2725 effg
2726 bcdd
2727
2728 /((((((((((a))))))))))/
2729 a
2730
2731 /((((((((((a))))))))))\10/
2732 aa
2733
2734 /(((((((((a)))))))))/
2735 a
2736
2737 /multiple words of text/
2738 *** Failers
2739 aa
2740 uh-uh
2741
2742 /multiple words/
2743 multiple words, yeah
2744
2745 /(.*)c(.*)/
2746 abcde
2747
2748 /\((.*), (.*)\)/
2749 (a, b)
2750
2751 /[k]/
2752
2753 /abcd/
2754 abcd
2755
2756 /a(bc)d/
2757 abcd
2758
2759 /a[-]?c/
2760 ac
2761
2762 /(abc)\1/
2763 abcabc
2764
2765 /([a-c]*)\1/
2766 abcabc
2767
2768 /(a)|\1/
2769 a
2770 *** Failers
2771 ab
2772 x
2773
2774 /(([a-c])b*?\2)*/
2775 ababbbcbc
2776
2777 /(([a-c])b*?\2){3}/
2778 ababbbcbc
2779
2780 /((\3|b)\2(a)x)+/
2781 aaaxabaxbaaxbbax
2782
2783 /((\3|b)\2(a)){2,}/
2784 bbaababbabaaaaabbaaaabba
2785
2786 /abc/i
2787 ABC
2788 XABCY
2789 ABABC
2790 *** Failers
2791 aaxabxbaxbbx
2792 XBC
2793 AXC
2794 ABX
2795
2796 /ab*c/i
2797 ABC
2798
2799 /ab*bc/i
2800 ABC
2801 ABBC
2802
2803 /ab*?bc/i
2804 ABBBBC
2805
2806 /ab{0,}?bc/i
2807 ABBBBC
2808
2809 /ab+?bc/i
2810 ABBC
2811
2812 /ab+bc/i
2813 *** Failers
2814 ABC
2815 ABQ
2816
2817 /ab{1,}bc/i
2818
2819 /ab+bc/i
2820 ABBBBC
2821
2822 /ab{1,}?bc/i
2823 ABBBBC
2824
2825 /ab{1,3}?bc/i
2826 ABBBBC
2827
2828 /ab{3,4}?bc/i
2829 ABBBBC
2830
2831 /ab{4,5}?bc/i
2832 *** Failers
2833 ABQ
2834 ABBBBC
2835
2836 /ab??bc/i
2837 ABBC
2838 ABC
2839
2840 /ab{0,1}?bc/i
2841 ABC
2842
2843 /ab??bc/i
2844
2845 /ab??c/i
2846 ABC
2847
2848 /ab{0,1}?c/i
2849 ABC
2850
2851 /^abc$/i
2852 ABC
2853 *** Failers
2854 ABBBBC
2855 ABCC
2856
2857 /^abc/i
2858 ABCC
2859
2860 /^abc$/i
2861
2862 /abc$/i
2863 AABC
2864
2865 /^/i
2866 ABC
2867
2868 /$/i
2869 ABC
2870
2871 /a.c/i
2872 ABC
2873 AXC
2874
2875 /a.*?c/i
2876 AXYZC
2877
2878 /a.*c/i
2879 *** Failers
2880 AABC
2881 AXYZD
2882
2883 /a[bc]d/i
2884 ABD
2885
2886 /a[b-d]e/i
2887 ACE
2888 *** Failers
2889 ABC
2890 ABD
2891
2892 /a[b-d]/i
2893 AAC
2894
2895 /a[-b]/i
2896 A-
2897
2898 /a[b-]/i
2899 A-
2900
2901 /a]/i
2902 A]
2903
2904 /a[]]b/i
2905 A]B
2906
2907 /a[^bc]d/i
2908 AED
2909
2910 /a[^-b]c/i
2911 ADC
2912 *** Failers
2913 ABD
2914 A-C
2915
2916 /a[^]b]c/i
2917 ADC
2918
2919 /ab|cd/i
2920 ABC
2921 ABCD
2922
2923 /()ef/i
2924 DEF
2925
2926 /$b/i
2927 *** Failers
2928 A]C
2929 B
2930
2931 /a\(b/i
2932 A(B
2933
2934 /a\(*b/i
2935 AB
2936 A((B
2937
2938 /a\\b/i
2939 A\B
2940
2941 /((a))/i
2942 ABC
2943
2944 /(a)b(c)/i
2945 ABC
2946
2947 /a+b+c/i
2948 AABBABC
2949
2950 /a{1,}b{1,}c/i
2951 AABBABC
2952
2953 /a.+?c/i
2954 ABCABC
2955
2956 /a.*?c/i
2957 ABCABC
2958
2959 /a.{0,5}?c/i
2960 ABCABC
2961
2962 /(a+|b)*/i
2963 AB
2964
2965 /(a+|b){0,}/i
2966 AB
2967
2968 /(a+|b)+/i
2969 AB
2970
2971 /(a+|b){1,}/i
2972 AB
2973
2974 /(a+|b)?/i
2975 AB
2976
2977 /(a+|b){0,1}/i
2978 AB
2979
2980 /(a+|b){0,1}?/i
2981 AB
2982
2983 /[^ab]*/i
2984 CDE
2985
2986 /abc/i
2987
2988 /a*/i
2989
2990
2991 /([abc])*d/i
2992 ABBBCD
2993
2994 /([abc])*bcd/i
2995 ABCD
2996
2997 /a|b|c|d|e/i
2998 E
2999
3000 /(a|b|c|d|e)f/i
3001 EF
3002
3003 /abcd*efg/i
3004 ABCDEFG
3005
3006 /ab*/i
3007 XABYABBBZ
3008 XAYABBBZ
3009
3010 /(ab|cd)e/i
3011 ABCDE
3012
3013 /[abhgefdc]ij/i
3014 HIJ
3015
3016 /^(ab|cd)e/i
3017 ABCDE
3018
3019 /(abc|)ef/i
3020 ABCDEF
3021
3022 /(a|b)c*d/i
3023 ABCD
3024
3025 /(ab|ab*)bc/i
3026 ABC
3027
3028 /a([bc]*)c*/i
3029 ABC
3030
3031 /a([bc]*)(c*d)/i
3032 ABCD
3033
3034 /a([bc]+)(c*d)/i
3035 ABCD
3036
3037 /a([bc]*)(c+d)/i
3038 ABCD
3039
3040 /a[bcd]*dcdcde/i
3041 ADCDCDE
3042
3043 /a[bcd]+dcdcde/i
3044
3045 /(ab|a)b*c/i
3046 ABC
3047
3048 /((a)(b)c)(d)/i
3049 ABCD
3050
3051 /[a-zA-Z_][a-zA-Z0-9_]*/i
3052 ALPHA
3053
3054 /^a(bc+|b[eh])g|.h$/i
3055 ABH
3056
3057 /(bc+d$|ef*g.|h?i(j|k))/i
3058 EFFGZ
3059 IJ
3060 REFFGZ
3061 *** Failers
3062 ADCDCDE
3063 EFFG
3064 BCDD
3065
3066 /((((((((((a))))))))))/i
3067 A
3068
3069 /((((((((((a))))))))))\10/i
3070 AA
3071
3072 /(((((((((a)))))))))/i
3073 A
3074
3075 /(?:(?:(?:(?:(?:(?:(?:(?:(?:(a))))))))))/i
3076 A
3077
3078 /(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/i
3079 C
3080
3081 /multiple words of text/i
3082 *** Failers
3083 AA
3084 UH-UH
3085
3086 /multiple words/i
3087 MULTIPLE WORDS, YEAH
3088
3089 /(.*)c(.*)/i
3090 ABCDE
3091
3092 /\((.*), (.*)\)/i
3093 (A, B)
3094
3095 /[k]/i
3096
3097 /abcd/i
3098 ABCD
3099
3100 /a(bc)d/i
3101 ABCD
3102
3103 /a[-]?c/i
3104 AC
3105
3106 /(abc)\1/i
3107 ABCABC
3108
3109 /([a-c]*)\1/i
3110 ABCABC
3111
3112 /a(?!b)./
3113 abad
3114
3115 /a(?=d)./
3116 abad
3117
3118 /a(?=c|d)./
3119 abad
3120
3121 /a(?:b|c|d)(.)/
3122 ace
3123
3124 /a(?:b|c|d)*(.)/
3125 ace
3126
3127 /a(?:b|c|d)+?(.)/
3128 ace
3129 acdbcdbe
3130
3131 /a(?:b|c|d)+(.)/
3132 acdbcdbe
3133
3134 /a(?:b|c|d){2}(.)/
3135 acdbcdbe
3136
3137 /a(?:b|c|d){4,5}(.)/
3138 acdbcdbe
3139
3140 /a(?:b|c|d){4,5}?(.)/
3141 acdbcdbe
3142
3143 /((foo)|(bar))*/
3144 foobar
3145
3146 /a(?:b|c|d){6,7}(.)/
3147 acdbcdbe
3148
3149 /a(?:b|c|d){6,7}?(.)/
3150 acdbcdbe
3151
3152 /a(?:b|c|d){5,6}(.)/
3153 acdbcdbe
3154
3155 /a(?:b|c|d){5,6}?(.)/
3156 acdbcdbe
3157
3158 /a(?:b|c|d){5,7}(.)/
3159 acdbcdbe
3160
3161 /a(?:b|c|d){5,7}?(.)/
3162 acdbcdbe
3163
3164 /a(?:b|(c|e){1,2}?|d)+?(.)/
3165 ace
3166
3167 /^(.+)?B/
3168 AB
3169
3170 /^([^a-z])|(\^)$/
3171 .
3172
3173 /^[<>]&/
3174 <&OUT
3175
3176 /^(a\1?){4}$/
3177 aaaaaaaaaa
3178 *** Failers
3179 AB
3180 aaaaaaaaa
3181 aaaaaaaaaaa
3182
3183 /^(a(?(1)\1)){4}$/
3184 aaaaaaaaaa
3185 *** Failers
3186 aaaaaaaaa
3187 aaaaaaaaaaa
3188
3189 /(?:(f)(o)(o)|(b)(a)(r))*/
3190 foobar
3191
3192 /(?<=a)b/
3193 ab
3194 *** Failers
3195 cb
3196 b
3197
3198 /(?<!c)b/
3199 ab
3200 b
3201 b
3202
3203 /(?:..)*a/
3204 aba
3205
3206 /(?:..)*?a/
3207 aba
3208
3209 /^(?:b|a(?=(.)))*\1/
3210 abc
3211
3212 /^(){3,5}/
3213 abc
3214
3215 /^(a+)*ax/
3216 aax
3217
3218 /^((a|b)+)*ax/
3219 aax
3220
3221 /^((a|bc)+)*ax/
3222 aax
3223
3224 /(a|x)*ab/
3225 cab
3226
3227 /(a)*ab/
3228 cab
3229
3230 /(?:(?i)a)b/
3231 ab
3232
3233 /((?i)a)b/
3234 ab
3235
3236 /(?:(?i)a)b/
3237 Ab
3238
3239 /((?i)a)b/
3240 Ab
3241
3242 /(?:(?i)a)b/
3243 *** Failers
3244 cb
3245 aB
3246
3247 /((?i)a)b/
3248
3249 /(?i:a)b/
3250 ab
3251
3252 /((?i:a))b/
3253 ab
3254
3255 /(?i:a)b/
3256 Ab
3257
3258 /((?i:a))b/
3259 Ab
3260
3261 /(?i:a)b/
3262 *** Failers
3263 aB
3264 aB
3265
3266 /((?i:a))b/
3267
3268 /(?:(?-i)a)b/i
3269 ab
3270
3271 /((?-i)a)b/i
3272 ab
3273
3274 /(?:(?-i)a)b/i
3275 aB
3276
3277 /((?-i)a)b/i
3278 aB
3279
3280 /(?:(?-i)a)b/i
3281 *** Failers
3282 aB
3283 Ab
3284
3285 /((?-i)a)b/i
3286
3287 /(?:(?-i)a)b/i
3288 aB
3289
3290 /((?-i)a)b/i
3291 aB
3292
3293 /(?:(?-i)a)b/i
3294 *** Failers
3295 Ab
3296 AB
3297
3298 /((?-i)a)b/i
3299
3300 /(?-i:a)b/i
3301 ab
3302
3303 /((?-i:a))b/i
3304 ab
3305
3306 /(?-i:a)b/i
3307 aB
3308
3309 /((?-i:a))b/i
3310 aB
3311
3312 /(?-i:a)b/i
3313 *** Failers
3314 AB
3315 Ab
3316
3317 /((?-i:a))b/i
3318
3319 /(?-i:a)b/i
3320 aB
3321
3322 /((?-i:a))b/i
3323 aB
3324
3325 /(?-i:a)b/i
3326 *** Failers
3327 Ab
3328 AB
3329
3330 /((?-i:a))b/i
3331
3332 /((?-i:a.))b/i
3333 *** Failers
3334 AB
3335 a\nB
3336
3337 /((?s-i:a.))b/i
3338 a\nB
3339
3340 /(?:c|d)(?:)(?:a(?:)(?:b)(?:b(?:))(?:b(?:)(?:b)))/
3341 cabbbb
3342
3343 /(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/
3344 caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
3345
3346 /(ab)\d\1/i
3347 Ab4ab
3348 ab4Ab
3349
3350 /foo\w*\d{4}baz/
3351 foobar1234baz
3352
3353 /x(~~)*(?:(?:F)?)?/
3354 x~~
3355
3356 /^a(?#xxx){3}c/
3357 aaac
3358
3359 /^a (?#xxx) (?#yyy) {3}c/x
3360 aaac
3361
3362 /(?<![cd])b/
3363 *** Failers
3364 B\nB
3365 dbcb
3366
3367 /(?<![cd])[ab]/
3368 dbaacb
3369
3370 /(?<!(c|d))b/
3371
3372 /(?<!(c|d))[ab]/
3373 dbaacb
3374
3375 /(?<!cd)[ab]/
3376 cdaccb
3377
3378 /^(?:a?b?)*$/
3379 \
3380 a
3381 ab
3382 aaa
3383 *** Failers
3384 dbcb
3385 a--
3386 aa--
3387
3388 /((?s)^a(.))((?m)^b$)/
3389 a\nb\nc\n
3390
3391 /((?m)^b$)/
3392 a\nb\nc\n
3393
3394 /(?m)^b/
3395 a\nb\n
3396
3397 /(?m)^(b)/
3398 a\nb\n
3399
3400 /((?m)^b)/
3401 a\nb\n
3402
3403 /\n((?m)^b)/
3404 a\nb\n
3405
3406 /((?s).)c(?!.)/
3407 a\nb\nc\n
3408 a\nb\nc\n
3409
3410 /((?s)b.)c(?!.)/
3411 a\nb\nc\n
3412 a\nb\nc\n
3413
3414 /^b/
3415
3416 /()^b/
3417 *** Failers
3418 a\nb\nc\n
3419 a\nb\nc\n
3420
3421 /((?m)^b)/
3422 a\nb\nc\n
3423
3424 /(?(1)a|b)/
3425
3426 /(?(1)b|a)/
3427 a
3428
3429 /(x)?(?(1)a|b)/
3430 *** Failers
3431 a
3432 a
3433
3434 /(x)?(?(1)b|a)/
3435 a
3436
3437 /()?(?(1)b|a)/
3438 a
3439
3440 /()(?(1)b|a)/
3441
3442 /()?(?(1)a|b)/
3443 a
3444
3445 /^(\()?blah(?(1)(\)))$/
3446 (blah)
3447 blah
3448 *** Failers
3449 a
3450 blah)
3451 (blah
3452
3453 /^(\(+)?blah(?(1)(\)))$/
3454 (blah)
3455 blah
3456 *** Failers
3457 blah)
3458 (blah
3459
3460 /(?(?!a)a|b)/
3461
3462 /(?(?!a)b|a)/
3463 a
3464
3465 /(?(?=a)b|a)/
3466 *** Failers
3467 a
3468 a
3469
3470 /(?(?=a)a|b)/
3471 a
3472
3473 /(?=(a+?))(\1ab)/
3474 aaab
3475
3476 /^(?=(a+?))\1ab/
3477
3478 /(\w+:)+/
3479 one:
3480
3481 /$(?<=^(a))/
3482 a
3483
3484 /(?=(a+?))(\1ab)/
3485 aaab
3486
3487 /^(?=(a+?))\1ab/
3488 *** Failers
3489 aaab
3490 aaab
3491
3492 /([\w:]+::)?(\w+)$/
3493 abcd
3494 xy:z:::abcd
3495
3496 /^[^bcd]*(c+)/
3497 aexycd
3498
3499 /(a*)b+/
3500 caab
3501
3502 /([\w:]+::)?(\w+)$/
3503 abcd
3504 xy:z:::abcd
3505 *** Failers
3506 abcd:
3507 abcd:
3508
3509 /^[^bcd]*(c+)/
3510 aexycd
3511
3512 /(>a+)ab/
3513
3514 /(?>a+)b/
3515 aaab
3516
3517 /([[:]+)/
3518 a:[b]:
3519
3520 /([[=]+)/
3521 a=[b]=
3522
3523 /([[.]+)/
3524 a.[b].
3525
3526 /((?>a+)b)/
3527 aaab
3528
3529 /(?>(a+))b/
3530 aaab
3531
3532 /((?>[^()]+)|\([^()]*\))+/
3533 ((abc(ade)ufh()()x
3534
3535 /a\Z/
3536 *** Failers
3537 aaab
3538 a\nb\n
3539
3540 /b\Z/
3541 a\nb\n
3542
3543 /b\z/
3544
3545 /b\Z/
3546 a\nb
3547
3548 /b\z/
3549 a\nb
3550 *** Failers
3551
3552 /^(?>(?(1)\.|())[^\W_](?>[a-z0-9-]*[^\W_])?)+$/
3553 a
3554 abc
3555 a-b
3556 0-9
3557 a.b
3558 5.6.7
3559 the.quick.brown.fox
3560 a100.b200.300c
3561 12-ab.1245
3562 *** Failers
3563 \
3564 .a
3565 -a
3566 a-
3567 a.
3568 a_b
3569 a.-
3570 a..
3571 ab..bc
3572 the.quick.brown.fox-
3573 the.quick.brown.fox.
3574 the.quick.brown.fox_
3575 the.quick.brown.fox+
3576
3577 /(?>.*)(?<=(abcd|wxyz))/
3578 alphabetabcd
3579 endingwxyz
3580 *** Failers
3581 a rather long string that doesn't end with one of them
3582
3583 /word (?>(?:(?!otherword)[a-zA-Z0-9]+ ){0,30})otherword/
3584 word cat dog elephant mussel cow horse canary baboon snake shark otherword
3585 word cat dog elephant mussel cow horse canary baboon snake shark
3586
3587 /word (?>[a-zA-Z0-9]+ ){0,30}otherword/
3588 word cat dog elephant mussel cow horse canary baboon snake shark the quick brown fox and the lazy dog and several other words getting close to thirty by now I hope
3589
3590 /(?<=\d{3}(?!999))foo/
3591 999foo
3592 123999foo
3593 *** Failers
3594 123abcfoo
3595
3596 /(?<=(?!...999)\d{3})foo/
3597 999foo
3598 123999foo
3599 *** Failers
3600 123abcfoo
3601
3602 /(?<=\d{3}(?!999)...)foo/
3603 123abcfoo
3604 123456foo
3605 *** Failers
3606 123999foo
3607
3608 /(?<=\d{3}...)(?<!999)foo/
3609 123abcfoo
3610 123456foo
3611 *** Failers
3612 123999foo
3613
3614 /<a[\s]+href[\s]*=[\s]* # find <a href=
3615 ([\"\'])? # find single or double quote
3616 (?(1) (.*?)\1 | ([^\s]+)) # if quote found, match up to next matching
3617 # quote, otherwise match up to next space
3618 /isx
3619 <a href=abcd xyz
3620 <a href=\"abcd xyz pqr\" cats
3621 <a href=\'abcd xyz pqr\' cats
3622
3623 /<a\s+href\s*=\s* # find <a href=
3624 (["'])? # find single or double quote
3625 (?(1) (.*?)\1 | (\S+)) # if quote found, match up to next matching
3626 # quote, otherwise match up to next space
3627 /isx
3628 <a href=abcd xyz
3629 <a href=\"abcd xyz pqr\" cats
3630 <a href = \'abcd xyz pqr\' cats
3631
3632 /<a\s+href(?>\s*)=(?>\s*) # find <a href=
3633 (["'])? # find single or double quote
3634 (?(1) (.*?)\1 | (\S+)) # if quote found, match up to next matching
3635 # quote, otherwise match up to next space
3636 /isx
3637 <a href=abcd xyz
3638 <a href=\"abcd xyz pqr\" cats
3639 <a href = \'abcd xyz pqr\' cats
3640
3641 /((Z)+|A)*/
3642 ZABCDEFG
3643
3644 /(Z()|A)*/
3645 ZABCDEFG
3646
3647 /(Z(())|A)*/
3648 ZABCDEFG
3649
3650 /((?>Z)+|A)*/
3651 ZABCDEFG
3652
3653 /((?>)+|A)*/
3654 ZABCDEFG
3655
3656 /a*/g
3657 abbab
3658
3659 /^[a-\d]/
3660 abcde
3661 -things
3662 0digit
3663 *** Failers
3664 bcdef
3665
3666 /^[\d-a]/
3667 abcde
3668 -things
3669 0digit
3670 *** Failers
3671 bcdef
3672
3673 /[[:space:]]+/
3674 > \x09\x0a\x0c\x0d\x0b<
3675
3676 /[[:blank:]]+/
3677 > \x09\x0a\x0c\x0d\x0b<
3678
3679 /[\s]+/
3680 > \x09\x0a\x0c\x0d\x0b<
3681
3682 /\s+/
3683 > \x09\x0a\x0c\x0d\x0b<
3684
3685 /a b/x
3686 ab
3687
3688 /(?!\A)x/m
3689 a\nxb\n
3690
3691 /(?!^)x/m
3692 a\nxb\n
3693
3694 /abc\Qabc\Eabc/
3695 abcabcabc
3696
3697 /abc\Q(*+|\Eabc/
3698 abc(*+|abc
3699
3700 / abc\Q abc\Eabc/x
3701 abc abcabc
3702 *** Failers
3703 abcabcabc
3704
3705 /abc#comment
3706 \Q#not comment
3707 literal\E/x
3708 abc#not comment\n literal
3709
3710 /abc#comment
3711 \Q#not comment
3712 literal/x
3713 abc#not comment\n literal
3714
3715 /abc#comment
3716 \Q#not comment
3717 literal\E #more comment
3718 /x
3719 abc#not comment\n literal
3720
3721 /abc#comment
3722 \Q#not comment
3723 literal\E #more comment/x
3724 abc#not comment\n literal
3725
3726 /\Qabc\$xyz\E/
3727 abc\\\$xyz
3728
3729 /\Qabc\E\$\Qxyz\E/
3730 abc\$xyz
3731
3732 /\Gabc/
3733 abc
3734 *** Failers
3735 xyzabc
3736
3737 /\Gabc./g
3738 abc1abc2xyzabc3
3739
3740 /abc./g
3741 abc1abc2xyzabc3
3742
3743 /a(?x: b c )d/
3744 XabcdY
3745 *** Failers
3746 Xa b c d Y
3747
3748 /((?x)x y z | a b c)/
3749 XabcY
3750 AxyzB
3751
3752 /(?i)AB(?-i)C/
3753 XabCY
3754 *** Failers
3755 XabcY
3756
3757 /((?i)AB(?-i)C|D)E/
3758 abCE
3759 DE
3760 *** Failers
3761 abcE
3762 abCe
3763 dE
3764 De
3765
3766 /(.*)\d+\1/
3767 abc123abc
3768 abc123bc
3769
3770 /(.*)\d+\1/s
3771 abc123abc
3772 abc123bc
3773
3774 /((.*))\d+\1/
3775 abc123abc
3776 abc123bc
3777
3778 /-- This tests for an IPv6 address in the form where it can have up to --/
3779 /-- eight components, one and only one of which is empty. This must be --/
3780 /-- an internal component. --/
3781
3782 /^(?!:) # colon disallowed at start
3783 (?: # start of item
3784 (?: [0-9a-f]{1,4} | # 1-4 hex digits or
3785 (?(1)0 | () ) ) # if null previously matched, fail; else null
3786 : # followed by colon
3787 ){1,7} # end item; 1-7 of them required
3788 [0-9a-f]{1,4} $ # final hex number at end of string
3789 (?(1)|.) # check that there was an empty component
3790 /xi
3791 a123::a123
3792 a123:b342::abcd
3793 a123:b342::324e:abcd
3794 a123:ddde:b342::324e:abcd
3795 a123:ddde:b342::324e:dcba:abcd
3796 a123:ddde:9999:b342::324e:dcba:abcd
3797 *** Failers
3798 1:2:3:4:5:6:7:8
3799 a123:bce:ddde:9999:b342::324e:dcba:abcd
3800 a123::9999:b342::324e:dcba:abcd
3801 abcde:2:3:4:5:6:7:8
3802 ::1
3803 abcd:fee0:123::
3804 :1
3805 1:
3806
3807 /[z\Qa-d]\E]/
3808 z
3809 a
3810 -
3811 d
3812 ]
3813 *** Failers
3814 b
3815
3816 /[\z\C]/
3817 z
3818 C
3819
3820 /\M/
3821 M
3822
3823 /(a+)*b/
3824 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
3825
3826 /(?i)reg(?:ul(?:[a]|ae)r|ex)/
3827 REGular
3828 regulaer
3829 Regex
3830 regulr
3831
3832 /[--]+/
3833
3834
3835
3836
3837
3838 /(?<=Z)X./
3839 \x84XAZXB
3840
3841 /ab cd (?x) de fg/
3842 ab cd defg
3843
3844 /ab cd(?x) de fg/
3845 ab cddefg
3846 ** Failers
3847 abcddefg
3848
3849 /(?<![^f]oo)(bar)/
3850 foobarX
3851 ** Failers
3852 boobarX
3853
3854 /(?<![^f])X/
3855 offX
3856 ** Failers
3857 onyX
3858
3859 /(?<=[^f])X/
3860 onyX
3861 ** Failers
3862 offX
3863
3864 /^/mg
3865 a\nb\nc\n
3866 \
3867
3868 /(?<=C\n)^/mg
3869 A\nC\nC\n
3870
3871 /(?:(?(1)a|b)(X))+/
3872 bXaX
3873
3874 /(?:(?(1)\1a|b)(X|Y))+/
3875 bXXaYYaY
3876 bXYaXXaX
3877
3878 /()()()()()()()()()(?:(?(10)\10a|b)(X|Y))+/
3879 bXXaYYaY
3880
3881 /[[,abc,]+]/
3882 abc]
3883 a,b]
3884 [a,b,c]
3885
3886 /(?-x: )/x
3887 A\x20B
3888
3889 "(?x)(?-x: \s*#\s*)"
3890 A # B
3891 ** Failers
3892 #
3893
3894 "(?x-is)(?:(?-ixs) \s*#\s*) include"
3895 A #include
3896 ** Failers
3897 A#include
3898 A #Include
3899
3900 /a*b*\w/
3901 aaabbbb
3902 aaaa
3903 a
3904
3905 /a*b?\w/
3906 aaabbbb
3907 aaaa
3908 a
3909
3910 /a*b{0,4}\w/
3911 aaabbbb
3912 aaaa
3913 a
3914
3915 /a*b{0,}\w/
3916 aaabbbb
3917 aaaa
3918 a
3919
3920 /a*\d*\w/
3921 0a
3922 a
3923
3924 /a*b *\w/x
3925 a
3926
3927 /a*b#comment
3928 *\w/x
3929 a
3930
3931 /a* b *\w/x
3932 a
3933
3934 /^\w+=.*(\\\n.*)*/
3935 abc=xyz\\\npqr
3936
3937 /(?=(\w+))\1:/
3938 abcd:
3939
3940 /^(?=(\w+))\1:/
3941 abcd:
3942
3943 /^\Eabc/
3944 abc
3945
3946 /^[\Eabc]/
3947 a
3948 ** Failers
3949 E
3950
3951 /^[a-\Ec]/
3952 b
3953 ** Failers
3954 -
3955 E
3956
3957 /^[a\E\E-\Ec]/
3958 b
3959 ** Failers
3960 -
3961 E
3962
3963 /^[\E\Qa\E-\Qz\E]+/
3964 b
3965 ** Failers
3966 -
3967
3968 /^[a\Q]bc\E]/
3969 a
3970 ]
3971 c
3972
3973 /^[a-\Q\E]/
3974 a
3975 -
3976
3977 /^(a()*)*/
3978 aaaa
3979
3980 /^(?:a(?:(?:))*)*/
3981 aaaa
3982
3983 /^(a()+)+/
3984 aaaa
3985
3986 /^(?:a(?:(?:))+)+/
3987 aaaa
3988
3989 /(a){0,3}(?(1)b|(c|))*D/
3990 abbD
3991 ccccD
3992 D
3993
3994 /(a|)*\d/
3995 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
3996 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4
3997
3998 /(?>a|)*\d/
3999 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
4000 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4
4001
4002 /(?:a|)*\d/
4003 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
4004 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4
4005
4006 /\Z/g
4007 abc\n
4008
4009 /^(?s)(?>.*)(?<!\n)/
4010 abc
4011 abc\n
4012
4013 /^(?![^\n]*\n\z)/
4014 abc
4015 abc\n
4016
4017 /\z(?<!\n)/
4018 abc
4019 abc\n
4020
4021 /(.*(.)?)*/
4022 abcd
4023
4024 / End of testinput1 /

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