22 ab*bc abbbbc y $& abbbbc
23 ab*bc abbbbc y $-[0] 0
24 ab*bc abbbbc y $+[0] 6
28 .{3,4} abbbbc y $& abbb
29 .{3,4} abbbbc y $-[0] 0
30 .{3,4} abbbbc y $+[0] 4
31 ab{0,}bc abbbbc y $& abbbbc
32 ab{0,}bc abbbbc y $-[0] 0
33 ab{0,}bc abbbbc y $+[0] 6
40 ab+bc abbbbc y $& abbbbc
41 ab+bc abbbbc y $-[0] 0
42 ab+bc abbbbc y $+[0] 6
43 ab{1,}bc abbbbc y $& abbbbc
44 ab{1,}bc abbbbc y $-[0] 0
45 ab{1,}bc abbbbc y $+[0] 6
46 ab{1,3}bc abbbbc y $& abbbbc
47 ab{1,3}bc abbbbc y $-[0] 0
48 ab{1,3}bc abbbbc y $+[0] 6
49 ab{3,4}bc abbbbc y $& abbbbc
50 ab{3,4}bc abbbbc y $-[0] 0
51 ab{3,4}bc abbbbc y $+[0] 6
52 ab{4,5}bc abbbbc n - -
55 ab{0,1}bc abc y $& abc
74 [a][b][d] abd y $& abd
77 (?i:.[b].) abd y $& abd
83 a[b-a] - c - Invalid [] range \"b-a\"
84 a[]b - c - Unmatched [
140 *a - c - Quantifier follows nothing
141 (|*)b - c - Quantifier follows nothing
142 (*)b - c - Unknown verb
144 a\ - c - Search pattern not terminated
145 a\(b a(b y $&-$1 a(b-
149 abc) - c - Unmatched )
150 (abc - c - Unmatched (
151 ((a)) abc y $&-$1-$2 a-a-a
152 ((a)) abc y $-[0]-$-[1]-$-[2] 0-0-0
153 ((a)) abc y $+[0]-$+[1]-$+[2] 1-1-1
156 (a)b(c) abc y $&-$1-$2 abc-a-c
157 (a)b(c) abc y $-[0]-$-[1]-$-[2] 0-0-2
158 (a)b(c) abc y $+[0]-$+[1]-$+[2] 3-1-3
159 a+b+c aabbabc y $& abc
160 a{1,}b{1,}c aabbabc y $& abc
161 a** - c - Nested quantifiers
162 a.+?c abcabc y $& abc
163 (a+|b)* ab y $&-$1 ab-b
168 (a+|b){0,} ab y $&-$1 ab-b
169 (a+|b)+ ab y $&-$1 ab-b
170 (a+|b){1,} ab y $&-$1 ab-b
171 (a+|b)? ab y $&-$1 a-a
172 (a+|b){0,1} ab y $&-$1 a-a
177 ([abc])*d abbbcd y $&-$1 abbbcd-c
178 ([abc])*bcd abcd y $&-$1 abcd-a
180 (a|b|c|d|e)f ef y $&-$1 ef-e
181 (a|b|c|d|e)f ef y $-[0] 0
182 (a|b|c|d|e)f ef y $+[0] 2
183 (a|b|c|d|e)f ef y $-[1] 0
184 (a|b|c|d|e)f ef y $+[1] 1
185 abcd*efg abcdefg y $& abcdefg
186 ab* xabyabbbz y $& ab
188 (ab|cd)e abcde y $&-$1 cde-cd
189 [abhgefdc]ij hij y $& hij
190 ^(ab|cd)e abcde n x$1y xy
191 (abc|)ef abcdef y $&-$1 ef-
192 (a|b)c*d abcd y $&-$1 bcd-b
193 (ab|ab*)bc abc y $&-$1 abc-a
194 a([bc]*)c* abc y $&-$1 abc-bc
195 a([bc]*)(c*d) abcd y $&-$1-$2 abcd-bc-d
196 a([bc]*)(c*d) abcd y $-[0] 0
197 a([bc]*)(c*d) abcd y $+[0] 4
198 a([bc]*)(c*d) abcd y $-[1] 1
199 a([bc]*)(c*d) abcd y $+[1] 3
200 a([bc]*)(c*d) abcd y $-[2] 3
201 a([bc]*)(c*d) abcd y $+[2] 4
202 a([bc]+)(c*d) abcd y $&-$1-$2 abcd-bc-d
203 a([bc]*)(c+d) abcd y $&-$1-$2 abcd-b-cd
204 a([bc]*)(c+d) abcd y $-[0] 0
205 a([bc]*)(c+d) abcd y $+[0] 4
206 a([bc]*)(c+d) abcd y $-[1] 1
207 a([bc]*)(c+d) abcd y $+[1] 2
208 a([bc]*)(c+d) abcd y $-[2] 2
209 a([bc]*)(c+d) abcd y $+[2] 4
210 a[bcd]*dcdcde adcdcde y $& adcdcde
211 a[bcd]+dcdcde adcdcde n - -
212 (ab|a)b*c abc y $&-$1 abc-ab
213 (ab|a)b*c abc y $-[0] 0
214 (ab|a)b*c abc y $+[0] 3
215 (ab|a)b*c abc y $-[1] 0
216 (ab|a)b*c abc y $+[1] 2
217 ((a)(b)c)(d) abcd y $1-$2-$3-$4 abc-a-b-d
218 ((a)(b)c)(d) abcd y $-[0] 0
219 ((a)(b)c)(d) abcd y $+[0] 4
220 ((a)(b)c)(d) abcd y $-[1] 0
221 ((a)(b)c)(d) abcd y $+[1] 3
222 ((a)(b)c)(d) abcd y $-[2] 0
223 ((a)(b)c)(d) abcd y $+[2] 1
224 ((a)(b)c)(d) abcd y $-[3] 1
225 ((a)(b)c)(d) abcd y $+[3] 2
226 ((a)(b)c)(d) abcd y $-[4] 3
227 ((a)(b)c)(d) abcd y $+[4] 4
228 [a-zA-Z_][a-zA-Z0-9_]* alpha y $& alpha
229 ^a(bc+|b[eh])g|.h$ abh y $&-$1 bh-
230 (bc+d$|ef*g.|h?i(j|k)) effgz y $&-$1-$2 effgz-effgz-
231 (bc+d$|ef*g.|h?i(j|k)) ij y $&-$1-$2 ij-ij-j
232 (bc+d$|ef*g.|h?i(j|k)) effg n - -
233 (bc+d$|ef*g.|h?i(j|k)) bcdd n - -
234 (bc+d$|ef*g.|h?i(j|k)) reffgz y $&-$1-$2 effgz-effgz-
235 ((((((((((a)))))))))) a y $10 a
236 ((((((((((a)))))))))) a y $-[0] 0
237 ((((((((((a)))))))))) a y $+[0] 1
238 ((((((((((a)))))))))) a y $-[10] 0
239 ((((((((((a)))))))))) a y $+[10] 1
240 ((((((((((a))))))))))\10 aa y $& aa
241 ((((((((((a))))))))))${bang} aa n - -
242 ((((((((((a))))))))))${bang} a! y $& a!
243 (((((((((a))))))))) a y $& a
244 multiple words of text uh-uh n - -
245 multiple words multiple words, yeah y $& multiple words
246 (.*)c(.*) abcde y $&-$1-$2 abcde-ab-de
247 \((.*), (.*)\) (a, b) y ($2, $1) (b, a)
249 abcd abcd y $&-\$&-\\$& abcd-\$&-\\abcd
250 a(bc)d abcd y $1-\$1-\\$1 bc-\$1-\\bc
252 (abc)\1 abcabc y $1 abc
253 ([a-c]*)\1 abcabc y $1 abc
254 \1 - c - Reference to nonexistent group
255 \2 - c - Reference to nonexistent group
256 \g1 - c - Reference to nonexistent group
257 \g-1 - c - Reference to nonexistent or unclosed group
258 \g{1} - c - Reference to nonexistent group
259 \g{-1} - c - Reference to nonexistent or unclosed group
260 \g0 - c - Reference to invalid group 0
261 \g-0 - c - Reference to invalid group 0
262 \g{0} - c - Reference to invalid group 0
263 \g{-0} - c - Reference to invalid group 0
266 (a)|\2 - c - Reference to nonexistent group
267 (([a-c])b*?\2)* ababbbcbc y $&-$1-$2 ababb-bb-b
268 (([a-c])b*?\2){3} ababbbcbc y $&-$1-$2 ababbbcbc-cbc-c
269 ((\3|b)\2(a)x)+ aaxabxbaxbbx n - -
270 ((\3|b)\2(a)x)+ aaaxabaxbaaxbbax y $&-$1-$2-$3 bbax-bbax-b-a
271 ((\3|b)\2(a)){2,} bbaababbabaaaaabbaaaabba y $&-$1-$2-$3 bbaaaabba-bba-b-a
272 #Bug #3589 - up to perl-5.6.0 matches incorrectly, from 5.6.1 not anymore
273 ^((.)?a\2)+$ babadad n - -
284 'abc'i XABCY y $& ABC
285 'abc'i ABABC y $& ABC
287 'ab*bc'i ABC y $& ABC
288 'ab*bc'i ABBC y $& ABBC
289 'ab*?bc'i ABBBBC y $& ABBBBC
290 'ab{0,}?bc'i ABBBBC y $& ABBBBC
291 'ab+?bc'i ABBC y $& ABBC
294 'ab{1,}bc'i ABQ n - -
295 'ab+bc'i ABBBBC y $& ABBBBC
296 'ab{1,}?bc'i ABBBBC y $& ABBBBC
297 'ab{1,3}?bc'i ABBBBC y $& ABBBBC
298 'ab{3,4}?bc'i ABBBBC y $& ABBBBC
299 'ab{4,5}?bc'i ABBBBC n - -
300 'ab??bc'i ABBC y $& ABBC
301 'ab??bc'i ABC y $& ABC
302 'ab{0,1}?bc'i ABC y $& ABC
303 'ab??bc'i ABBBBC n - -
304 'ab??c'i ABC y $& ABC
305 'ab{0,1}?c'i ABC y $& ABC
306 '^abc$'i ABC y $& ABC
308 '^abc'i ABCC y $& ABC
310 'abc$'i AABC y $& ABC
315 'a.*?c'i AXYZC y $& AXYZC
318 'a[bc]d'i ABD y $& ABD
320 'a[b-d]e'i ACE y $& ACE
321 'a[b-d]'i AAC y $& AC
324 'a[b-a]'i - c - Invalid [] range \"b-a\"
325 'a[]b'i - c - Unmatched [
326 'a['i - c - Unmatched [
328 'a[]]b'i A]B y $& A]B
329 'a[^bc]d'i AED y $& AED
331 'a[^-b]c'i ADC y $& ADC
334 'a[^]b]c'i ADC y $& ADC
336 'ab|cd'i ABCD y $& AB
337 '()ef'i DEF y $&-$1 EF-
338 '*a'i - c - Quantifier follows nothing
339 '(|*)b'i - c - Quantifier follows nothing
340 '(*)b'i - c - Unknown verb
342 'a\'i - c - Search pattern not terminated
343 'a\(b'i A(B y $&-$1 A(B-
345 'a\(*b'i A((B y $& A((B
346 'a\\b'i A\\B y $& A\\B
347 'abc)'i - c - Unmatched )
348 '(abc'i - c - Unmatched (
349 '((a))'i ABC y $&-$1-$2 A-A-A
350 '(a)b(c)'i ABC y $&-$1-$2 ABC-A-C
351 'a+b+c'i AABBABC y $& ABC
352 'a{1,}b{1,}c'i AABBABC y $& ABC
353 'a**'i - c - Nested quantifiers
354 'a.+?c'i ABCABC y $& ABC
355 'a.*?c'i ABCABC y $& ABC
356 'a.{0,5}?c'i ABCABC y $& ABC
357 '(a+|b)*'i AB y $&-$1 AB-B
358 '(a+|b){0,}'i AB y $&-$1 AB-B
359 '(a+|b)+'i AB y $&-$1 AB-B
360 '(a+|b){1,}'i AB y $&-$1 AB-B
361 '(a+|b)?'i AB y $&-$1 A-A
362 '(a+|b){0,1}'i AB y $&-$1 A-A
363 '(a+|b){0,1}?'i AB y $&-$1 -
364 ')('i - c - Unmatched )
365 '[^ab]*'i CDE y $& CDE
368 '([abc])*d'i ABBBCD y $&-$1 ABBBCD-C
369 '([abc])*bcd'i ABCD y $&-$1 ABCD-A
370 'a|b|c|d|e'i E y $& E
371 '(a|b|c|d|e)f'i EF y $&-$1 EF-E
372 'abcd*efg'i ABCDEFG y $& ABCDEFG
373 'ab*'i XABYABBBZ y $& AB
374 'ab*'i XAYABBBZ y $& A
375 '(ab|cd)e'i ABCDE y $&-$1 CDE-CD
376 '[abhgefdc]ij'i HIJ y $& HIJ
377 '^(ab|cd)e'i ABCDE n x$1y XY
378 '(abc|)ef'i ABCDEF y $&-$1 EF-
379 '(a|b)c*d'i ABCD y $&-$1 BCD-B
380 '(ab|ab*)bc'i ABC y $&-$1 ABC-A
381 'a([bc]*)c*'i ABC y $&-$1 ABC-BC
382 'a([bc]*)(c*d)'i ABCD y $&-$1-$2 ABCD-BC-D
383 'a([bc]+)(c*d)'i ABCD y $&-$1-$2 ABCD-BC-D
384 'a([bc]*)(c+d)'i ABCD y $&-$1-$2 ABCD-B-CD
385 'a[bcd]*dcdcde'i ADCDCDE y $& ADCDCDE
386 'a[bcd]+dcdcde'i ADCDCDE n - -
387 '(ab|a)b*c'i ABC y $&-$1 ABC-AB
388 '((a)(b)c)(d)'i ABCD y $1-$2-$3-$4 ABC-A-B-D
389 '[a-zA-Z_][a-zA-Z0-9_]*'i ALPHA y $& ALPHA
390 '^a(bc+|b[eh])g|.h$'i ABH y $&-$1 BH-
391 '(bc+d$|ef*g.|h?i(j|k))'i EFFGZ y $&-$1-$2 EFFGZ-EFFGZ-
392 '(bc+d$|ef*g.|h?i(j|k))'i IJ y $&-$1-$2 IJ-IJ-J
393 '(bc+d$|ef*g.|h?i(j|k))'i EFFG n - -
394 '(bc+d$|ef*g.|h?i(j|k))'i BCDD n - -
395 '(bc+d$|ef*g.|h?i(j|k))'i REFFGZ y $&-$1-$2 EFFGZ-EFFGZ-
396 '((((((((((a))))))))))'i A y $10 A
397 '((((((((((a))))))))))\10'i AA y $& AA
398 '((((((((((a))))))))))${bang}'i AA n - -
399 '((((((((((a))))))))))${bang}'i A! y $& A!
400 '(((((((((a)))))))))'i A y $& A
401 '(?:(?:(?:(?:(?:(?:(?:(?:(?:(a))))))))))'i A y $1 A
402 '(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))'i C y $1 C
403 'multiple words of text'i UH-UH n - -
404 'multiple words'i MULTIPLE WORDS, YEAH y $& MULTIPLE WORDS
405 '(.*)c(.*)'i ABCDE y $&-$1-$2 ABCDE-AB-DE
406 '\((.*), (.*)\)'i (A, B) y ($2, $1) (B, A)
408 'abcd'i ABCD y $&-\$&-\\$& ABCD-\$&-\\ABCD
409 'a(bc)d'i ABCD y $1-\$1-\\$1 BC-\$1-\\BC
411 '(abc)\1'i ABCABC y $1 ABC
412 '([a-c]*)\1'i ABCABC y $1 ABC
415 a(?=c|d). abad y $& ad
416 a(?:b|c|d)(.) ace y $1 e
417 a(?:b|c|d)*(.) ace y $1 e
418 a(?:b|c|d)+?(.) ace y $1 e
419 a(?:b|c|d)+?(.) acdbcdbe y $1 d
420 a(?:b|c|d)+(.) acdbcdbe y $1 e
421 a(?:b|c|d){2}(.) acdbcdbe y $1 b
422 a(?:b|c|d){4,5}(.) acdbcdbe y $1 b
423 a(?:b|c|d){4,5}?(.) acdbcdbe y $1 d
424 ((foo)|(bar))* foobar y $1-$2-$3 bar-foo-bar
425 :(?: - c - Sequence (? incomplete
426 a(?:b|c|d){6,7}(.) acdbcdbe y $1 e
427 a(?:b|c|d){6,7}?(.) acdbcdbe y $1 e
428 a(?:b|c|d){5,6}(.) acdbcdbe y $1 e
429 a(?:b|c|d){5,6}?(.) acdbcdbe y $1 b
430 a(?:b|c|d){5,7}(.) acdbcdbe y $1 e
431 a(?:b|c|d){5,7}?(.) acdbcdbe y $1 b
432 a(?:b|(c|e){1,2}?|d)+?(.) ace y $1$2 ce
434 ^([^a-z])|(\^)$ . y $1 .
436 ^(a\1?){4}$ aaaaaaaaaa y $1 aaaa
437 ^(a\1?){4}$ aaaaaaaaa n - -
438 ^(a\1?){4}$ aaaaaaaaaaa n - -
439 ^(a(?(1)\1)){4}$ aaaaaaaaaa y $1 aaaa
440 ^(a(?(1)\1)){4}$ aaaaaaaaa n - -
441 ^(a(?(1)\1)){4}$ aaaaaaaaaaa n - -
442 ((a{4})+) aaaaaaaaa y $1 aaaaaaaa
443 (((aa){2})+) aaaaaaaaaa y $1 aaaaaaaa
444 (((a{2}){2})+) aaaaaaaaaa y $1 aaaaaaaa
445 (?:(f)(o)(o)|(b)(a)(r))* foobar y $1:$2:$3:$4:$5:$6 f:o:o:b:a:r
453 (?<%)b - c - Sequence (?<%...) not recognized
454 (?:..)*a aba y $& aba
456 ^(?:b|a(?=(.)))*\1 abc y $& ab
459 ^((a|b)+)*ax aax y $1 a
460 ^((a|bc)+)*ax aax y $1 a
463 (?:(?i)a)b ab y $& ab
464 ((?i)a)b ab y $&:$1 ab:a
465 (?:(?i)a)b Ab y $& Ab
466 ((?i)a)b Ab y $&:$1 Ab:A
470 ((?i:a))b ab y $&:$1 ab:a
472 ((?i:a))b Ab y $&:$1 Ab:A
475 '(?:(?-i)a)b'i ab y $& ab
476 '((?-i)a)b'i ab y $&:$1 ab:a
477 '(?:(?-i)a)b'i aB y $& aB
478 '((?-i)a)b'i aB y $&:$1 aB:a
479 '(?:(?-i)a)b'i Ab n - -
480 '((?-i)a)b'i Ab n - -
481 '(?:(?-i)a)b'i aB y $& aB
482 '((?-i)a)b'i aB y $1 a
483 '(?:(?-i)a)b'i AB n - -
484 '((?-i)a)b'i AB n - -
485 '(?-i:a)b'i ab y $& ab
486 '((?-i:a))b'i ab y $&:$1 ab:a
487 '(?-i:a)b'i aB y $& aB
488 '((?-i:a))b'i aB y $&:$1 aB:a
490 '((?-i:a))b'i Ab n - -
491 '(?-i:a)b'i aB y $& aB
492 '((?-i:a))b'i aB y $1 a
494 '((?-i:a))b'i AB n - -
495 '((?-i:a.))b'i a\nB n - -
496 '((?s-i:a.))b'i a\nB y $1 a\n
497 '((?s-i:a.))b'i B\nB n - -
498 (?:c|d)(?:)(?:a(?:)(?:b)(?:b(?:))(?:b(?:)(?:b))) cabbbb y $& cabbbb
499 (?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb))) caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb y $& caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
500 '(ab)\d\1'i Ab4ab y $1 Ab
501 '(ab)\d\1'i ab4Ab y $1 ab
502 foo\w*\d{4}baz foobar1234baz y $& foobar1234baz
504 a(?{)b - c - Sequence (?{...}) not terminated or not {}-balanced
505 a(?{{})b - c - Sequence (?{...}) not terminated or not {}-balanced
507 a(?{"{"})b - c - Sequence (?{...}) not terminated or not {}-balanced
508 a(?{"\{"})b cabd y $& ab
509 a(?{"{"}})b - c - Unmatched right curly bracket
510 a(?{$::bl="\{"}).b caxbd y $::bl {
511 x(~~)*(?:(?:F)?)? x~~ y - -
512 ^a(?#xxx){3}c aaac y $& aaac
513 '^a (?#xxx) (?#yyy) {3}c'x aaac y $& aaac
514 (?<![cd])b dbcb n - -
515 (?<![cd])[ab] dbaacb y $& a
516 (?<!(c|d))b dbcb n - -
517 (?<!(c|d))[ab] dbaacb y $& a
518 (?<!cd)[ab] cdaccb y $& b
519 ^(?:a?b?)*$ a-- n - -
520 ((?s)^a(.))((?m)^b$) a\nb\nc\n y $1;$2;$3 a\n;\n;b
521 ((?m)^b$) a\nb\nc\n y $1 b
523 (?m)^(b) a\nb\n y $1 b
524 ((?m)^b) a\nb\n y $1 b
525 \n((?m)^b) a\nb\n y $1 b
526 ((?s).)c(?!.) a\nb\nc\n y $1 \n
527 ((?s).)c(?!.) a\nb\nc\n y $1:$& \n:\nc
528 ((?s)b.)c(?!.) a\nb\nc\n y $1 b\n
529 ((?s)b.)c(?!.) a\nb\nc\n y $1:$& b\n:b\nc
532 ((?m)^b) a\nb\nc\n y $1 b
535 (x)?(?(1)a|b) a n - -
536 (x)?(?(1)b|a) a y $& a
537 ()?(?(1)b|a) a y $& a
539 ()?(?(1)a|b) a y $& a
540 ^(\()?blah(?(1)(\)))$ (blah) y $2 )
541 ^(\()?blah(?(1)(\)))$ blah y ($2) ()
542 ^(\()?blah(?(1)(\)))$ blah) n - -
543 ^(\()?blah(?(1)(\)))$ (blah n - -
544 ^(\(+)?blah(?(1)(\)))$ (blah) y $2 )
545 ^(\(+)?blah(?(1)(\)))$ blah y ($2) ()
546 ^(\(+)?blah(?(1)(\)))$ blah) n - -
547 ^(\(+)?blah(?(1)(\)))$ (blah n - -
548 (?(1?)a|b) a c - Switch condition not recognized
549 (?(1)a|b|c) a c - Switch (?(condition)... contains too many branches
551 (?(?{0})b|a) a y $& a
553 (?(?{1})a|b) a y $& a
558 (?=(a+?))(\1ab) aaab y $2 aab
559 ^(?=(a+?))\1ab aaab n - -
560 (\w+:)+ one: y $1 one:
562 (?=(a+?))(\1ab) aaab y $2 aab
563 ^(?=(a+?))\1ab aaab n - -
564 ([\w:]+::)?(\w+)$ abcd: n - -
565 ([\w:]+::)?(\w+)$ abcd y $1-$2 -abcd
566 ([\w:]+::)?(\w+)$ xy:z:::abcd y $1-$2 xy:z:::-abcd
567 ^[^bcd]*(c+) aexycd y $1 c
569 ([\w:]+::)?(\w+)$ abcd: n - -
570 ([\w:]+::)?(\w+)$ abcd y $1-$2 -abcd
571 ([\w:]+::)?(\w+)$ xy:z:::abcd y $1-$2 xy:z:::-abcd
572 ^[^bcd]*(c+) aexycd y $1 c
573 (?{$a=2})a*aa(?{local$a=$a+1})k*c(?{$b=$a}) yaaxxaaaacd y $b 3
574 (?{$a=2})(a(?{local$a=$a+1}))*aak*c(?{$b=$a}) yaaxxaaaacd y $b 4
577 ([[:]+) a:[b]: y $1 :[
578 ([[=]+) a=[b]= y $1 =[
579 ([[.]+) a.[b]. y $1 .[
580 [a[:xyz: - c - Unmatched [
581 [a[:xyz:] - c - POSIX class [:xyz:] unknown
582 [a[:]b[:c] abc y $& abc
583 ([a[:xyz:]b]+) pbaq c - POSIX class [:xyz:] unknown
584 [a[:]b[:c] abc y $& abc
585 ([[:alpha:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd
586 ([[:alnum:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01Xy
587 ([[:ascii:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01Xy__-- ${nulnul}
588 ([[:cntrl:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ${nulnul}
589 ([[:digit:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 01
590 ([[:graph:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01Xy__--
591 ([[:lower:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 cd
592 ([[:print:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01Xy__--
593 ([[:punct:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 __--
594 ([[:space:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1
595 ([[:word:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01Xy__
596 ([[:upper:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 AB
597 ([[:xdigit:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01
598 ([[:^alpha:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 01
599 ([[:^alnum:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 __-- ${nulnul}${ffff}
600 ([[:^ascii:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ${ffff}
601 ([[:^cntrl:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01Xy__--
602 ([[:^digit:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd
603 ([[:^lower:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 AB
604 ([[:^print:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ${nulnul}${ffff}
605 ([[:^punct:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01Xy
606 ([[:^space:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 ABcd01Xy__--
607 ([[:^word:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 -- ${nulnul}${ffff}
608 ([[:^upper:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 cd01
609 ([[:^xdigit:]]+) ABcd01Xy__-- ${nulnul}${ffff} y $1 Xy__-- ${nulnul}${ffff}
610 [[:foo:]] - c - POSIX class [:foo:] unknown
611 [[:^foo:]] - c - POSIX class [:^foo:] unknown
612 ((?>a+)b) aaab y $1 aaab
613 (?>(a+))b aaab y $1 aaa
614 ((?>[^()]+)|\([^()]*\))+ ((abc(ade)ufh()()x y $& abc(ade)ufh()()x
615 (?<=x+)y - c - Variable length lookbehind not implemented
616 a{37,17} - c - Can't do {n,m} with n > m
626 '\Z'm a\nb\n y $-[0] 3
627 '\z'm a\nb\n y $-[0] 4
628 '$'m a\nb\n y $-[0] 1
629 '\Z'm b\na\n y $-[0] 3
630 '\z'm b\na\n y $-[0] 4
631 '$'m b\na\n y $-[0] 1
646 'a$'m a\nb\n y $-[0] 0
647 'a\Z'm b\na\n y $-[0] 2
649 'a$'m b\na\n y $-[0] 2
650 'a\Z'm b\na y $-[0] 2
651 'a\z'm b\na y $-[0] 2
656 aa\Z b\naa\n y $-[0] 2
658 aa$ b\naa\n y $-[0] 2
662 'aa\Z'm aa\nb\n n - -
663 'aa\z'm aa\nb\n n - -
664 'aa$'m aa\nb\n y $-[0] 0
665 'aa\Z'm b\naa\n y $-[0] 2
666 'aa\z'm b\naa\n n - -
667 'aa$'m b\naa\n y $-[0] 2
668 'aa\Z'm b\naa y $-[0] 2
669 'aa\z'm b\naa y $-[0] 2
670 'aa$'m b\naa y $-[0] 2
680 'aa\Z'm ac\nb\n n - -
681 'aa\z'm ac\nb\n n - -
683 'aa\Z'm b\nac\n n - -
684 'aa\z'm b\nac\n n - -
698 'aa\Z'm ca\nb\n n - -
699 'aa\z'm ca\nb\n n - -
701 'aa\Z'm b\nca\n n - -
702 'aa\z'm b\nca\n n - -
710 ab\Z b\nab\n y $-[0] 2
712 ab$ b\nab\n y $-[0] 2
716 'ab\Z'm ab\nb\n n - -
717 'ab\z'm ab\nb\n n - -
718 'ab$'m ab\nb\n y $-[0] 0
719 'ab\Z'm b\nab\n y $-[0] 2
720 'ab\z'm b\nab\n n - -
721 'ab$'m b\nab\n y $-[0] 2
722 'ab\Z'm b\nab y $-[0] 2
723 'ab\z'm b\nab y $-[0] 2
724 'ab$'m b\nab y $-[0] 2
734 'ab\Z'm ac\nb\n n - -
735 'ab\z'm ac\nb\n n - -
737 'ab\Z'm b\nac\n n - -
738 'ab\z'm b\nac\n n - -
752 'ab\Z'm ca\nb\n n - -
753 'ab\z'm ca\nb\n n - -
755 'ab\Z'm b\nca\n n - -
756 'ab\z'm b\nca\n n - -
764 abb\Z b\nabb\n y $-[0] 2
766 abb$ b\nabb\n y $-[0] 2
767 abb\Z b\nabb y $-[0] 2
768 abb\z b\nabb y $-[0] 2
769 abb$ b\nabb y $-[0] 2
770 'abb\Z'm abb\nb\n n - -
771 'abb\z'm abb\nb\n n - -
772 'abb$'m abb\nb\n y $-[0] 0
773 'abb\Z'm b\nabb\n y $-[0] 2
774 'abb\z'm b\nabb\n n - -
775 'abb$'m b\nabb\n y $-[0] 2
776 'abb\Z'm b\nabb y $-[0] 2
777 'abb\z'm b\nabb y $-[0] 2
778 'abb$'m b\nabb y $-[0] 2
788 'abb\Z'm ac\nb\n n - -
789 'abb\z'm ac\nb\n n - -
790 'abb$'m ac\nb\n n - -
791 'abb\Z'm b\nac\n n - -
792 'abb\z'm b\nac\n n - -
793 'abb$'m b\nac\n n - -
806 'abb\Z'm ca\nb\n n - -
807 'abb\z'm ca\nb\n n - -
808 'abb$'m ca\nb\n n - -
809 'abb\Z'm b\nca\n n - -
810 'abb\z'm b\nca\n n - -
811 'abb$'m b\nca\n n - -
816 a*abc?xyz+pqr{3}ab{2,}xy{4,5}pq{0,6}AB{0,}zz x n - -
817 a(?{$a=2;$b=3;($b)=$a})b yabz y $b 2
818 round\(((?>[^()]+))\) _I(round(xs * sz),1) y $1 xs * sz
819 '((?x:.) )' x y $1- x -
820 '((?-x:.) )'x x y $1- x-
821 foo.bart foo.bart y - -
822 '^d[x][x][x]'m abcd\ndxxx y - -
823 .X(.+)+X bbbbXcXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
824 .X(.+)+XX bbbbXcXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
825 .XX(.+)+X bbbbXXcXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
826 .X(.+)+X bbbbXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
827 .X(.+)+XX bbbbXXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
828 .XX(.+)+X bbbbXXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
829 .X(.+)+[X] bbbbXcXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
830 .X(.+)+[X][X] bbbbXcXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
831 .XX(.+)+[X] bbbbXXcXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
832 .X(.+)+[X] bbbbXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
833 .X(.+)+[X][X] bbbbXXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
834 .XX(.+)+[X] bbbbXXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
835 .[X](.+)+[X] bbbbXcXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
836 .[X](.+)+[X][X] bbbbXcXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
837 .[X][X](.+)+[X] bbbbXXcXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y - -
838 .[X](.+)+[X] bbbbXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
839 .[X](.+)+[X][X] bbbbXXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
840 .[X][X](.+)+[X] bbbbXXXaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa n - -
842 ([a-\d]+) za-9z y $1 a-9
843 ([\d-z]+) a0-za y $1 0-z
844 ([\d-\s]+) a0- z y $1 0-
845 ([a-[:digit:]]+) za-9z y $1 a-9
846 ([[:digit:]-z]+) =0-z= y $1 0-z
847 ([[:digit:]-[:alpha:]]+) =0-z= y $1 0-z
849 (\d+\.\d+) 3.1415926 y $1 3.1415926
850 (\ba.{0,10}br) have a web browser y $1 a web br
851 '\.c(pp|xx|c)?$'i Changes n - -
852 '\.c(pp|xx|c)?$'i IO.c y - -
853 '(\.c(pp|xx|c)?$)'i IO.c y $1 .c
855 '^\S\s+aa$'m \nx aa y - -
857 ^([ab]*?)(b)?(c)$ abac y -$2- --
858 (\w)?(abc)\1b abcab n - -
859 ^(?:.,){2}c a,b,c y - -
860 ^(.,){2}c a,b,c y $1 b,
861 ^(?:[^,]*,){2}c a,b,c y - -
862 ^([^,]*,){2}c a,b,c y $1 b,
863 ^([^,]*,){3}d aaa,b,c,d y $1 c,
864 ^([^,]*,){3,}d aaa,b,c,d y $1 c,
865 ^([^,]*,){0,3}d aaa,b,c,d y $1 c,
866 ^([^,]{1,3},){3}d aaa,b,c,d y $1 c,
867 ^([^,]{1,3},){3,}d aaa,b,c,d y $1 c,
868 ^([^,]{1,3},){0,3}d aaa,b,c,d y $1 c,
869 ^([^,]{1,},){3}d aaa,b,c,d y $1 c,
870 ^([^,]{1,},){3,}d aaa,b,c,d y $1 c,
871 ^([^,]{1,},){0,3}d aaa,b,c,d y $1 c,
872 ^([^,]{0,3},){3}d aaa,b,c,d y $1 c,
873 ^([^,]{0,3},){3,}d aaa,b,c,d y $1 c,
874 ^([^,]{0,3},){0,3}d aaa,b,c,d y $1 c,
876 '(?!\A)x'm a\nxb\n y - -
877 ^(a(b)?)+$ aba y -$1-$2- -a--
878 ^(aa(bb)?)+$ aabbaa y -$1-$2- -aa--
879 '^.{9}abc.*\n'm 123\nabcabcabcabc\n y - -
881 ^(a)?(?(1)a|b)+$ a n - -
882 ^(a\1?)(a\1?)(a\2?)(a\3?)$ aaaaaa y $1,$2,$3,$4 a,aa,a,aa
883 ^(a\1?){4}$ aaaaaa y $1 aa
884 ^(0+)?(?:x(1))? x1 y - -
885 ^([0-9a-fA-F]+)(?:x([0-9a-fA-F]+)?)(?:x([0-9a-fA-F]+))? 012cxx0190 y - -
886 ^(b+?|a){1,2}c bbbac y $1 a
887 ^(b+?|a){1,2}c bbbbac y $1 a
888 \((\w\. \w+)\) cd. (A. Tw) y -$1- -A. Tw-
889 ((?:aaaa|bbbb)cccc)? aaaacccc y - -
890 ((?:aaaa|bbbb)cccc)? bbbbcccc y - -
891 (a)?(a)+ a y $1:$2 :a -
892 (ab)?(ab)+ ab y $1:$2 :ab -
893 (abc)?(abc)+ abc y $1:$2 :abc -
896 ^(a(??{"(?!)"})|(a)(?{1}))b ab y $2 a # [ID 20010811.006]
897 ab(?i)cd AbCd n - - # [ID 20010809.023]
899 (A|B)*(?(1)(CD)|(CD)) CD y $2-$3 -CD
900 (A|B)*(?(1)(CD)|(CD)) ABCD y $2-$3 CD-
901 (A|B)*?(?(1)(CD)|(CD)) CD y $2-$3 -CD # [ID 20010803.016]
902 (A|B)*?(?(1)(CD)|(CD)) ABCD y $2-$3 CD-
903 '^(o)(?!.*\1)'i Oo n - -
904 (.*)\d+\1 abc12bc y $1 bc
905 (?m:(foo\s*$)) foo\n bar y $1 foo
907 (.*)(?=c) abcd y $1 ab
908 (.*)(?=c)c abcd yB $1 ab
909 (.*)(?=b|c) abcd y $1 ab
910 (.*)(?=b|c)c abcd y $1 ab
911 (.*)(?=c|b) abcd y $1 ab
912 (.*)(?=c|b)c abcd y $1 ab
913 (.*)(?=[bc]) abcd y $1 ab
914 (.*)(?=[bc])c abcd yB $1 ab
915 (.*)(?<=b) abcd y $1 ab
916 (.*)(?<=b)c abcd y $1 ab
917 (.*)(?<=b|c) abcd y $1 abc
918 (.*)(?<=b|c)c abcd y $1 ab
919 (.*)(?<=c|b) abcd y $1 abc
920 (.*)(?<=c|b)c abcd y $1 ab
921 (.*)(?<=[bc]) abcd y $1 abc
922 (.*)(?<=[bc])c abcd y $1 ab
924 (.*?)(?=c) abcd y $1 ab
925 (.*?)(?=c)c abcd yB $1 ab
926 (.*?)(?=b|c) abcd y $1 a
927 (.*?)(?=b|c)c abcd y $1 ab
928 (.*?)(?=c|b) abcd y $1 a
929 (.*?)(?=c|b)c abcd y $1 ab
930 (.*?)(?=[bc]) abcd y $1 a
931 (.*?)(?=[bc])c abcd yB $1 ab
932 (.*?)(?<=b) abcd y $1 ab
933 (.*?)(?<=b)c abcd y $1 ab
934 (.*?)(?<=b|c) abcd y $1 ab
935 (.*?)(?<=b|c)c abcd y $1 ab
936 (.*?)(?<=c|b) abcd y $1 ab
937 (.*?)(?<=c|b)c abcd y $1 ab
938 (.*?)(?<=[bc]) abcd y $1 ab
939 (.*?)(?<=[bc])c abcd y $1 ab
942 a(b)?? abc y <$1> <> # undef [perl #16773]
943 (\d{1,3}\.){3,} 128.134.142.8 y <$1> <142.> # [perl #18019]
944 ^.{3,4}(.+)\1\z foobarbar y $1 bar # 16 tests for [perl #23171]
945 ^(?:f|o|b){3,4}(.+)\1\z foobarbar y $1 bar
946 ^.{3,4}((?:b|a|r)+)\1\z foobarbar y $1 bar
947 ^(?:f|o|b){3,4}((?:b|a|r)+)\1\z foobarbar y $1 bar
948 ^.{3,4}(.+?)\1\z foobarbar y $1 bar
949 ^(?:f|o|b){3,4}(.+?)\1\z foobarbar y $1 bar
950 ^.{3,4}((?:b|a|r)+?)\1\z foobarbar y $1 bar
951 ^(?:f|o|b){3,4}((?:b|a|r)+?)\1\z foobarbar y $1 bar
952 ^.{2,3}?(.+)\1\z foobarbar y $1 bar
953 ^(?:f|o|b){2,3}?(.+)\1\z foobarbar y $1 bar
954 ^.{2,3}?((?:b|a|r)+)\1\z foobarbar y $1 bar
955 ^(?:f|o|b){2,3}?((?:b|a|r)+)\1\z foobarbar y $1 bar
956 ^.{2,3}?(.+?)\1\z foobarbar y $1 bar
957 ^(?:f|o|b){2,3}?(.+?)\1\z foobarbar y $1 bar
958 ^.{2,3}?((?:b|a|r)+?)\1\z foobarbar y $1 bar
959 ^(?:f|o|b){2,3}?((?:b|a|r)+?)\1\z foobarbar y $1 bar
960 .*a(?!(b|cd)*e).*f ......abef n - - # [perl #23030]
961 x(?# x c - Sequence (?#... not terminated
962 :x(?#: x c - Sequence (?#... not terminated
963 (WORDS|WORD)S WORDS y $1 WORD
964 (X.|WORDS|X.|WORD)S WORDS y $1 WORD
965 (WORDS|WORLD|WORD)S WORDS y $1 WORD
966 (X.|WORDS|WORD|Y.)S WORDS y $1 WORD
967 (foo|fool|x.|money|parted)$ fool y $1 fool
968 (x.|foo|fool|x.|money|parted|y.)$ fool y $1 fool
969 (foo|fool|money|parted)$ fool y $1 fool
970 (foo|fool|x.|money|parted)$ fools n - -
971 (x.|foo|fool|x.|money|parted|y.)$ fools n - -
972 (foo|fool|money|parted)$ fools n - -
973 (a|aa|aaa||aaaa|aaaaa|aaaaaa)(b|c) aaaaaaaaaaaaaaab y $1$2 aaaaaab
974 (a|aa|aaa||aaaa|aaaaa|aaaaaa)(??{$1&&""})(b|c) aaaaaaaaaaaaaaab y $1$2 aaaaaab
975 (a|aa|aaa|aaaa|aaaaa|aaaaaa)(??{$1&&"foo"})(b|c) aaaaaaaaaaaaaaab n - -
976 ^(a*?)(?!(aa|aaaa)*$) aaaaaaaaaaaaaaaaaaaa y $1 a # [perl #34195]
977 ^(a*?)(?!(aa|aaaa)*$)(?=a\z) aaaaaaaa y $1 aaaaaaa
978 ^(.)\s+.$(?(1)) A B y $1 A # [perl #37688]
979 (?:r?)*?r|(.{2,4}) abcde y $1 abcd
980 (?!)+?|(.{2,4}) abcde y $1 abcd
981 ^(a*?)(?!(a{6}|a{5})*$) aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa y $+[1] 12 # super-linear cache bug may return 18
982 ^((?>(?:aa)?b)?) aab y $1 aab
983 ^((?:aa)*)(?:X+((?:\d+|-)(?:X+(.+))?))?$ aaaaX5 y $1 aaaa
984 X(A|B||C|D)Y XXXYYY y $& XY # Trie w/ NOTHING
985 (?i:X([A]|[B]|y[Y]y|[D]|)Y) XXXYYYB y $& XY # Trie w/ NOTHING
986 ^([a]{1})*$ aa y $1 a
987 a(?!b(?!c))(..) abababc y $1 bc # test nested negatives
988 a(?!b(?=a))(..) abababc y $1 bc # test nested lookaheads
989 a(?!b(?!c(?!d(?!e))))...(.) abxabcdxabcde y $1 e
990 X(?!b+(?!(c+)*(?!(c+)*d))).*X aXbbbbbbbcccccccccccccaaaX y - -
991 ^(XXXXXXXXXX|YYYYYYYYYY|Z.Q*X|Z[TE]Q*P): ZEQQQQQQQQQQQQQQQQQQP: y $1 ZEQQQQQQQQQQQQQQQQQQP
992 ^(XXXXXXXXXX|YYYYYYYYYY|Z.Q*X|Z[TE]Q*P): ZEQQQX: y $1 ZEQQQX
993 ^([TUV]+|XXXXXXXXXX|YYYYYYYYYY|Z.Q*X|Z[TE]Q*P): ZEQQQQQQQQQQQQQQQQQQP: y $1 ZEQQQQQQQQQQQQQQQQQQP
994 ^([TUV]+|XXXXXXXXXX|YYYYYYYYYY|Z.Q*X|Z[TE]Q*P): ZEQQQX: y $1 ZEQQQX
995 ^([TUV]+|XXXXXXXXXX|YYYYYYYYYY|Z.Q*X|Z[TE]Q*P|[MKJ]): ZEQQQQQQQQQQQQQQQQQQP: y $1 ZEQQQQQQQQQQQQQQQQQQP
996 ^([TUV]+|XXXXXXXXXX|YYYYYYYYYY|Z.Q*X|Z[TE]Q*P|[MKJ]): ZEQQQX: y $1 ZEQQQX
997 ^(XXX|YYY|Z.Q*X|Z[TE]Q*P): ZEQQQQQQQQQQQQQQQQQQP: y $1 ZEQQQQQQQQQQQQQQQQQQP
998 ^(XXX|YYY|Z.Q*X|Z[TE]Q*P): ZEQQQX: y $1 ZEQQQX
999 ^([TUV]+|XXX|YYY|Z.Q*X|Z[TE]Q*P): ZEQQQQQQQQQQQQQQQQQQP: y $1 ZEQQQQQQQQQQQQQQQQQQP
1000 ^([TUV]+|XXX|YYY|Z.Q*X|Z[TE]Q*P): ZEQQQX: y $1 ZEQQQX
1001 ^([TUV]+|XXX|YYY|Z.Q*X|Z[TE]Q*P|[MKJ]): ZEQQQQQQQQQQQQQQQQQQP: y $1 ZEQQQQQQQQQQQQQQQQQQP
1002 ^([TUV]+|XXX|YYY|Z.Q*X|Z[TE]Q*P|[MKJ]): ZEQQQX: y $1 ZEQQQX
1003 X(?:ABCF[cC]x*|ABCD|ABCF):(?:DIT|DID|DIM) XABCFCxxxxxxxxxx:DIM y $& XABCFCxxxxxxxxxx:DIM
1004 (((ABCD|ABCE|ABCF)))(A|B|C[xy]*): ABCFCxxxxxxxxxx:DIM y $& ABCFCxxxxxxxxxx:
1006 (?=foo) XfooY y pos 1
1007 .*(?=foo) XfooY y pos 1
1008 (?<=foo) foo y pos 3
1009 (?<=foo) XfooY y pos 4
1010 .*(?<=foo) foo y pos 3
1011 .*(?<=foo) XfooY y pos 4
1012 (?<=foo)Y XfooY y pos 5
1013 o(?<=foo)Y ..XfooY.. y pos 7
1014 X(?=foo)f ..XfooY.. y pos 4
1015 X(?=foo) ..XfooY.. y pos 3
1016 X(?<=foo.)[YZ] ..XfooXY.. y pos 8
1017 (?=XY*foo) Xfoo y pos 0
1018 ^(?=XY*foo) Xfoo y pos 0
1019 ^(??{"a+"})a aa y $& aa
1020 ^(?:(??{"a+"})|b)a aa y $& aa
1021 ^(??{chr 0x100}).$ \x{100}\x{100} y $& \x{100}\x{100}
1022 ^(??{q(\x{100})}). \x{100}\x{100} y $& \x{100}\x{100}
1023 ^(??{q(.+)})\x{100} \x{100}\x{100} y $& \x{100}\x{100}
1024 ^(??{q(.)})\x{100} \x{100}\x{100} y $& \x{100}\x{100}
1025 ^(??{chr 0x100})\xbb \x{100}\x{bb} y $& \x{100}\x{bb}
1026 ^(.)(??{"(.)(.)"})(.)$ abcd y $1-$2 a-d
1027 ^(.)(??{"(bz+|.)(.)"})(.)$ abcd y $1-$2 a-d
1028 ^(.)((??{"(.)(cz+)"})|.) abcd y $1-$2 a-b
1029 ^a(?>(??{q(b)}))(??{q(c)})d abcd y - -
1030 ^x(??{""})+$ x y $& x
1031 ^(<(?:[^<>]+|(?3)|(?1))*>)()(!>!>!>)$ <<!>!>!>><>>!>!>!> y $1 <<!>!>!>><>>
1032 ^(<(?:[^<>]+|(?1))*>)$ <<><<<><>>>> y $1 <<><<<><>>>>
1033 ((?2)*)([fF]o+) fooFoFoo y $1-$2 fooFo-Foo
1034 (<(?:[^<>]+|(?R))*>) <<><<<><>>>> y $1 <<><<<><>>>>
1035 (?<n>foo|bar|baz) snofooewa y $1 foo
1036 (?<n>foo|bar|baz) snofooewa y $+{n} foo
1037 (?<n>foo|bar|baz)(?<m>[ew]+) snofooewa y $+{n} foo
1038 (?<n>foo|bar|baz)(?<m>[ew]+) snofooewa y $+{m} ew
1039 (?<n>foo)|(?<n>bar)|(?<n>baz) snofooewa y $+{n} foo
1040 (?<n>foo)(??{ $+{n} }) snofooefoofoowaa y $+{n} foo
1041 (?P<n>foo|bar|baz) snofooewa y $1 foo
1042 (?P<n>foo|bar|baz) snofooewa y $+{n} foo
1043 (?P<n>foo|bar|baz)(?P<m>[ew]+) snofooewa y $+{n} foo
1044 (?P<n>foo|bar|baz)(?P<m>[ew]+) snofooewa y $+{m} ew
1045 (?P<n>foo)|(?P<n>bar)|(?P<n>baz) snofooewa y $+{n} foo
1046 (?P<n>foo)(??{ $+{n} }) snofooefoofoowaa y $+{n} foo
1047 (?P<=n>foo|bar|baz) snofooewa c - Sequence (?P<=...) not recognized
1048 (?P<!n>foo|bar|baz) snofooewa c - Sequence (?P<!...) not recognized
1049 (?PX<n>foo|bar|baz) snofooewa c - Sequence (?PX<...) not recognized
1050 /(?'n'foo|bar|baz)/ snofooewa y $1 foo
1051 /(?'n'foo|bar|baz)/ snofooewa y $+{n} foo
1052 /(?'n'foo|bar|baz)(?'m'[ew]+)/ snofooewa y $+{n} foo
1053 /(?'n'foo|bar|baz)(?'m'[ew]+)/ snofooewa y $+{m} ew
1054 /(?'n'foo)|(?'n'bar)|(?<n>baz)/ snobazewa y $+{n} baz
1055 /(?'n'foo)(??{ $+{n} })/ snofooefoofoowaa y $+{n} foo
1056 /(?'n'foo)\k<n>/ ..foofoo.. y $1 foo
1057 /(?'n'foo)\k<n>/ ..foofoo.. y $+{n} foo
1058 /(?<n>foo)\k'n'/ ..foofoo.. y $1 foo
1059 /(?<n>foo)\k'n'/ ..foofoo.. y $+{n} foo
1060 /(?:(?<n>foo)|(?<n>bar))\k<n>/ ..barbar.. y $+{n} bar
1061 /^(?'main'<(?:[^<>]+|(?&crap)|(?&main))*>)(?'empty')(?'crap'!>!>!>)$/ <<!>!>!>><>>!>!>!> y $+{main} <<!>!>!>><>>
1062 /^(?'main'<(?:[^<>]+|(?&main))*>)$/ <<><<<><>>>> y $1 <<><<<><>>>>
1063 /(?'first'(?&second)*)(?'second'[fF]o+)/ fooFoFoo y $+{first}-$+{second} fooFo-Foo
1064 (?<A>foo)?(?(<A>)bar|nada) foobar y $+{A} foo
1065 (?<A>foo)?(?(<A>)bar|nada) foo-barnada y $& nada
1066 (?<A>foo)?(?(1)bar|nada) foo-barnada y $& nada
1067 (?<A>foo(?(R)bar))?(?1) foofoobar y $1 foo
1068 (?<A>foo(?(R)bar))?(?1) foofoobar y $& foofoobar
1069 (x)(?<A>foo(?(R&A)bar))?(?&A) xfoofoobar y $2 foo
1070 (x)(?<A>foo(?(R&A)bar))?(?&A) xfoofoobar y $& xfoofoobar
1071 (x)(?<A>foo(?(R2)bar))?(?&A) xfoofoobar y $2 foo
1072 (x)(?<A>foo(?(R2)bar))?(?&A) xfoofoobar y $& xfoofoobar
1073 (?1)(?(DEFINE)(blah)) blah y $& blah
1074 /^(?<PAL>(?<CHAR>.)((?&PAL)|.?)\k<CHAR>)$/ madamimadam y $& madamimadam
1075 /^(?<PAL>(?<CHAR>.)((?&PAL)|.?)\k<CHAR>)$/ madamiamadam n - -
1076 /(a)?((?1))(fox)/ aafox y $1-$2-$3 a-a-fox
1077 /(a)*((?1))(fox)/ aafox y $1-$2-$3 a-a-fox
1078 /(a)+((?1))(fox)/ aafox y $1-$2-$3 a-a-fox
1079 /(a){1,100}((?1))(fox)/ aafox y $1-$2-$3 a-a-fox
1080 /(a){0,100}((?1))(fox)/ aafox y $1-$2-$3 a-a-fox
1081 /(ab)?((?1))(fox)/ ababfox y $1-$2-$3 ab-ab-fox
1082 /(ab)*((?1))(fox)/ ababfox y $1-$2-$3 ab-ab-fox
1083 /(ab)+((?1))(fox)/ ababfox y $1-$2-$3 ab-ab-fox
1084 /(ab){1,100}((?1))(fox)/ ababfox y $1-$2-$3 ab-ab-fox
1085 /(ab){0,100}((?1))(fox)/ ababfox y $1-$2-$3 ab-ab-fox
1086 # possessive captures
1089 a{1,5}+a aaaaa n - -
1091 a++b aaaaab y $& aaaaab
1092 a*+b aaaaab y $& aaaaab
1093 a{1,5}+b aaaaab y $& aaaaab
1095 fooa++a fooaaaaa n - -
1096 fooa*+a fooaaaaa n - -
1097 fooa{1,5}+a fooaaaaa n - -
1099 fooa++b fooaaaaab y $& fooaaaaab
1100 fooa*+b fooaaaaab y $& fooaaaaab
1101 fooa{1,5}+b fooaaaaab y $& fooaaaaab
1102 fooa?+b fooab y $& fooab
1103 (?:aA)++(?:aA) aAaAaAaAaA n - aAaAaAaAaA
1104 (aA)++(aA) aAaAaAaAaA n - aAaAaAaAaA
1105 (aA|bB)++(aA|bB) aAaAbBaAbB n - aAaAbBaAbB
1106 (?:aA|bB)++(?:aA|bB) aAbBbBbBaA n - aAbBbBbBaA
1107 (?:aA)*+(?:aA) aAaAaAaAaA n - aAaAaAaAaA
1108 (aA)*+(aA) aAaAaAaAaA n - aAaAaAaAaA
1109 (aA|bB)*+(aA|bB) aAaAbBaAaA n - aAaAbBaAaA
1110 (?:aA|bB)*+(?:aA|bB) aAaAaAbBaA n - aAaAaAbBaA
1111 (?:aA){1,5}+(?:aA) aAaAaAaAaA n - aAaAaAaAaA
1112 (aA){1,5}+(aA) aAaAaAaAaA n - aAaAaAaAaA
1113 (aA|bB){1,5}+(aA|bB) aAaAbBaAaA n - aAaAbBaAaA
1114 (?:aA|bB){1,5}+(?:aA|bB) bBbBbBbBbB n - bBbBbBbBbB
1115 (?:aA)?+(?:aA) aAb n - aAb
1116 (aA)?+(aA) aAb n - aAb
1117 (aA|bB)?+(aA|bB) bBb n - bBb
1118 (?:aA|bB)?+(?:aA|bB) aAb n - aAb
1119 (?:aA)++b aAaAaAaAaAb y $& aAaAaAaAaAb
1120 (aA)++b aAaAaAaAaAb y $& aAaAaAaAaAb
1121 (aA|bB)++b aAbBaAaAbBb y $& aAbBaAaAbBb
1122 (?:aA|bB)++b aAbBbBaAaAb y $& aAbBbBaAaAb
1123 (?:aA)*+b aAaAaAaAaAb y $& aAaAaAaAaAb
1124 (aA)*+b aAaAaAaAaAb y $& aAaAaAaAaAb
1125 (aA|bB)*+b bBbBbBbBbBb y $& bBbBbBbBbBb
1126 (?:aA|bB)*+b bBaAbBbBaAb y $& bBaAbBbBaAb
1127 (?:aA){1,5}+b aAaAaAaAaAb y $& aAaAaAaAaAb
1128 (aA){1,5}+b aAaAaAaAaAb y $& aAaAaAaAaAb
1129 (aA|bB){1,5}+b bBaAbBaAbBb y $& bBaAbBaAbBb
1130 (?:aA|bB){1,5}+b aAbBaAbBbBb y $& aAbBaAbBbBb
1131 (?:aA)?+b aAb y $& aAb
1132 (aA)?+b aAb y $& aAb
1133 (aA|bB)?+b bBb y $& bBb
1134 (?:aA|bB)?+b bBb y $& bBb
1135 foo(?:aA)++(?:aA) fooaAaAaAaAaA n - fooaAaAaAaAaA
1136 foo(aA)++(aA) fooaAaAaAaAaA n - fooaAaAaAaAaA
1137 foo(aA|bB)++(aA|bB) foobBbBbBaAaA n - foobBbBbBaAaA
1138 foo(?:aA|bB)++(?:aA|bB) fooaAaAaAaAaA n - fooaAaAaAaAaA
1139 foo(?:aA)*+(?:aA) fooaAaAaAaAaA n - fooaAaAaAaAaA
1140 foo(aA)*+(aA) fooaAaAaAaAaA n - fooaAaAaAaAaA
1141 foo(aA|bB)*+(aA|bB) foobBaAbBaAaA n - foobBaAbBaAaA
1142 foo(?:aA|bB)*+(?:aA|bB) fooaAaAbBbBaA n - fooaAaAbBbBaA
1143 foo(?:aA){1,5}+(?:aA) fooaAaAaAaAaA n - fooaAaAaAaAaA
1144 foo(aA){1,5}+(aA) fooaAaAaAaAaA n - fooaAaAaAaAaA
1145 foo(aA|bB){1,5}+(aA|bB) fooaAbBbBaAaA n - fooaAbBbBaAaA
1146 foo(?:aA|bB){1,5}+(?:aA|bB) fooaAbBbBaAbB n - fooaAbBbBaAbB
1147 foo(?:aA)?+(?:aA) fooaAb n - fooaAb
1148 foo(aA)?+(aA) fooaAb n - fooaAb
1149 foo(aA|bB)?+(aA|bB) foobBb n - foobBb
1150 foo(?:aA|bB)?+(?:aA|bB) fooaAb n - fooaAb
1151 foo(?:aA)++b fooaAaAaAaAaAb y $& fooaAaAaAaAaAb
1152 foo(aA)++b fooaAaAaAaAaAb y $& fooaAaAaAaAaAb
1153 foo(aA|bB)++b foobBaAbBaAbBb y $& foobBaAbBaAbBb
1154 foo(?:aA|bB)++b fooaAaAbBaAaAb y $& fooaAaAbBaAaAb
1155 foo(?:aA)*+b fooaAaAaAaAaAb y $& fooaAaAaAaAaAb
1156 foo(aA)*+b fooaAaAaAaAaAb y $& fooaAaAaAaAaAb
1157 foo(aA|bB)*+b foobBbBaAaAaAb y $& foobBbBaAaAaAb
1158 foo(?:aA|bB)*+b foobBaAaAbBaAb y $& foobBaAaAbBaAb
1159 foo(?:aA){1,5}+b fooaAaAaAaAaAb y $& fooaAaAaAaAaAb
1160 foo(aA){1,5}+b fooaAaAaAaAaAb y $& fooaAaAaAaAaAb
1161 foo(aA|bB){1,5}+b foobBaAaAaAaAb y $& foobBaAaAaAaAb
1162 foo(?:aA|bB){1,5}+b fooaAbBaAbBbBb y $& fooaAbBaAbBbBb
1163 foo(?:aA)?+b fooaAb y $& fooaAb
1164 foo(aA)?+b fooaAb y $& fooaAb
1165 foo(aA|bB)?+b foobBb y $& foobBb
1166 foo(?:aA|bB)?+b foobBb y $& foobBb
1168 ([^()]++|\([^()]*\))+ ((abc(ade)ufh()()x y $& abc(ade)ufh()()x
1169 round\(([^()]++)\) _I(round(xs * sz),1) y $1 xs * sz
1171 (foo[1x]|bar[2x]|baz[3x])+y foo1bar2baz3y y $1 baz3
1172 (foo[1x]|bar[2x]|baz[3x])+y foo1bar2baz3y y $& foo1bar2baz3y
1173 (foo[1x]|bar[2x]|baz[3x])*y foo1bar2baz3y y $1 baz3
1174 (foo[1x]|bar[2x]|baz[3x])*y foo1bar2baz3y y $& foo1bar2baz3y
1176 ([yX].|WORDS|[yX].|WORD)S WORDS y $1 WORD
1177 (WORDS|WORLD|WORD)S WORDS y $1 WORD
1178 ([yX].|WORDS|WORD|[xY].)S WORDS y $1 WORD
1179 (foo|fool|[zx].|money|parted)$ fool y $1 fool
1180 ([zx].|foo|fool|[zq].|money|parted|[yx].)$ fool y $1 fool
1181 (foo|fool|[zx].|money|parted)$ fools n - -
1182 ([zx].|foo|fool|[qx].|money|parted|[py].)$ fools n - -
1184 ([yX].|WORDS|[yX].|WORD)+S WORDS y $1 WORD
1185 (WORDS|WORLD|WORD)+S WORDS y $1 WORD
1186 ([yX].|WORDS|WORD|[xY].)+S WORDS y $1 WORD
1187 (foo|fool|[zx].|money|parted)+$ fool y $1 fool
1188 ([zx].|foo|fool|[zq].|money|parted|[yx].)+$ fool y $1 fool
1189 (foo|fool|[zx].|money|parted)+$ fools n - -
1190 ([zx].|foo|fool|[qx].|money|parted|[py].)+$ fools n - -
1192 (x|y|z[QW])+(longish|loquatious|excessive|overblown[QW])+ xyzQzWlongishoverblownW y $1-$2 zW-overblownW
1193 (x|y|z[QW])*(longish|loquatious|excessive|overblown[QW])* xyzQzWlongishoverblownW y $1-$2 zW-overblownW
1194 (x|y|z[QW]){1,5}(longish|loquatious|excessive|overblown[QW]){1,5} xyzQzWlongishoverblownW y $1-$2 zW-overblownW
1196 (x|y|z[QW])++(longish|loquatious|excessive|overblown[QW])++ xyzQzWlongishoverblownW y $1-$2 zW-overblownW
1197 (x|y|z[QW])*+(longish|loquatious|excessive|overblown[QW])*+ xyzQzWlongishoverblownW y $1-$2 zW-overblownW
1198 (x|y|z[QW]){1,5}+(longish|loquatious|excessive|overblown[QW]){1,5}+ xyzQzWlongishoverblownW y $1-$2 zW-overblownW
1201 a*(*FAIL) aaaab n - -
1204 (A(A|B(*ACCEPT)|C)D)(E) AB y $1 AB
1205 (A(A|B(*ACCEPT)|C)D)(E) ACDE y $1$2$3 ACDCE
1207 (a)(?:(?-1)|(?+1))(b) aab y $&-$1-$2 aab-a-b
1208 (a)(?:(?-1)|(?+1))(b) abb y $1-$2 a-b
1209 (a)(?:(?-1)|(?+1))(b) acb n - -
1211 (foo)(\g-2) foofoo y $1-$2 foo-foo
1212 (foo)(\g-2)(foo)(\g-2) foofoofoofoo y $1-$2-$3-$4 foo-foo-foo-foo
1213 (([abc]+) \g-1)(([abc]+) \g{-1}) abc abccba cba y $2-$4 abc-cba
1214 (a)(b)(c)\g1\g2\g3 abcabc y $1$2$3 abc
1216 # \k<n> preceded by a literal
1217 /(?'n'foo) \k<n>/ ..foo foo.. y $1 foo
1218 /(?'n'foo) \k<n>/ ..foo foo.. y $+{n} foo
1219 /(?<n>foo) \k'n'/ ..foo foo.. y $1 foo
1220 /(?<n>foo) \k'n'/ ..foo foo.. y $+{n} foo
1221 /(?'a1'foo) \k'a1'/ ..foo foo.. y $+{a1} foo
1222 /(?<a1>foo) \k<a1>/ ..foo foo.. y $+{a1} foo
1223 /(?'_'foo) \k'_'/ ..foo foo.. y $+{_} foo
1224 /(?<_>foo) \k<_>/ ..foo foo.. y $+{_} foo
1225 /(?'_0_'foo) \k'_0_'/ ..foo foo.. y $+{_0_} foo
1226 /(?<_0_>foo) \k<_0_>/ ..foo foo.. y $+{_0_} foo
1227 /(?'0'foo) bar/ ..foo bar.. c - Sequence (?'
1228 /(?<0>foo) bar/ ..foo bar.. c - Sequence (?<
1229 /(?'12'foo) bar/ ..foo bar.. c - Sequence (?'
1230 /(?<12>foo) bar/ ..foo bar.. c - Sequence (?<
1231 /(?'1a'foo) bar/ ..foo bar.. c - Sequence (?'
1232 /(?<1a>foo) bar/ ..foo bar.. c - Sequence (?<
1233 /(?''foo) bar/ ..foo bar.. c - Sequence (?''
1234 /(?<>foo) bar/ ..foo bar.. c - Sequence (?<>
1235 /foo \k'n'/ foo foo c - Reference to nonexistent named group
1236 /foo \k<n>/ foo foo c - Reference to nonexistent named group
1237 /foo \k'a1'/ foo foo c - Reference to nonexistent named group
1238 /foo \k<a1>/ foo foo c - Reference to nonexistent named group
1239 /foo \k'_'/ foo foo c - Reference to nonexistent named group
1240 /foo \k<_>/ foo foo c - Reference to nonexistent named group
1241 /foo \k'_0_'/ foo foo c - Reference to nonexistent named group
1242 /foo \k<_0_>/ foo foo c - Reference to nonexistent named group
1243 /foo \k'0'/ foo foo c - Sequence \\k'
1244 /foo \k<0>/ foo foo c - Sequence \\k<
1245 /foo \k'12'/ foo foo c - Sequence \\k'
1246 /foo \k<12>/ foo foo c - Sequence \\k<
1247 /foo \k'1a'/ foo foo c - Sequence \\k'
1248 /foo \k<1a>/ foo foo c - Sequence \\k<
1249 /foo \k''/ foo foo c - Sequence \\k'
1250 /foo \k<>/ foo foo c - Sequence \\k<
1251 /(?<as>as) (\w+) \k<as> (\w+)/ as easy as pie y $1-$2-$3 as-easy-pie
1253 # \g{...} with a name as the argument
1254 /(?'n'foo) \g{n}/ ..foo foo.. y $1 foo
1255 /(?'n'foo) \g{n}/ ..foo foo.. y $+{n} foo
1256 /(?<n>foo) \g{n}/ ..foo foo.. y $1 foo
1257 /(?<n>foo) \g{n}/ ..foo foo.. y $+{n} foo
1258 /(?<as>as) (\w+) \g{as} (\w+)/ as easy as pie y $1-$2-$3 as-easy-pie
1260 # Python style named capture buffer stuff
1261 /(?P<n>foo)(?P=n)/ ..foofoo.. y $1 foo
1262 /(?P<n>foo)(?P=n)/ ..foofoo.. y $+{n} foo
1263 /(?:(?P<n>foo)|(?P<n>bar))(?P=n)/ ..barbar.. y $+{n} bar
1264 /^(?P<PAL>(?P<CHAR>.)((?P>PAL)|.?)(?P=CHAR))$/ madamimadam y $& madamimadam
1265 /^(?P<PAL>(?P<CHAR>.)((?P>PAL)|.?)(?P=CHAR))$/ madamiamadam n - -
1266 /(?P<n>foo) (?P=n)/ ..foo foo.. y $1 foo
1267 /(?P<n>foo) (?P=n)/ ..foo foo.. y $+{n} foo
1268 /(?P<as>as) (\w+) (?P=as) (\w+)/ as easy as pie y $1-$2-$3 as-easy-pie
1270 #check that non identifiers as names are treated as the appropriate lookaround
1271 (?<=bar>)foo bar>foo y $& foo
1272 (?<!bar>)foo bar>foo n - -
1273 (?<=bar>ABC)foo bar>ABCfoo y $& foo
1274 (?<!bar>ABC)foo bar>ABCfoo n - -
1275 (?<bar>)foo bar>ABCfoo y $& foo
1276 (?<bar>ABC)foo bar>ABCfoo y $& ABCfoo
1278 (?<=abcd(?<=(aaaabcd))) ..aaaabcd.. y $1 aaaabcd
1279 (?=xy(?<=(aaxy))) ..aaxy.. y $1 aaxy
1281 X(\w+)(?=\s)|X(\w+) Xab y [$1-$2] [-ab]
1283 #check that branch reset works ok.
1284 (?|a(.)b|d(.(o).)d|i(.)(.)j)(.) d!o!da y $1-$2-$3 !o!-o-a
1285 (?|a(.)b|d(.(o).)d|i(.)(.)j)(.) aabc y $1-$2-$3 a--c
1286 (?|a(.)b|d(.(o).)d|i(.)(.)j)(.) ixyjp y $1-$2-$3 x-y-p
1287 (?|(?|(a)|(b))|(?|(c)|(d))) a y $1 a
1288 (?|(?|(a)|(b))|(?|(c)|(d))) b y $1 b
1289 (?|(?|(a)|(b))|(?|(c)|(d))) c y $1 c
1290 (?|(?|(a)|(b))|(?|(c)|(d))) d y $1 d
1291 (.)(?|(.)(.)x|(.)d)(.) abcde y $1-$2-$3-$4-$5- b-c--e--
1293 (?(DEFINE)(?<A>(?&B)+)(?<B>a))(?&A) a y $& a
1294 (?(DEFINE)(?<A>(?&B)+)(?<B>a))(?&A) aa y $& aa
1295 \x{100}?(??{""})xxx xxx y $& xxx
1297 foo(\R)bar foo\r\nbar y $1 \r\n
1298 foo(\R)bar foo\nbar y $1 \n
1299 foo(\R)bar foo\rbar y $1 \r
1301 foo(\R+)bar foo\r\n\x{85}\r\n\nbar y $1 \r\n\x{85}\r\n\n
1302 (\V+)(\R) foo\r\n\x{85}\r\n\nbar y $1-$2 foo-\r\n
1303 (\R+)(\V) foo\r\n\x{85}\r\n\nbar y $1-$2 \r\n\x{85}\r\n\n-b
1304 foo(\R)bar foo\x{85}bar y $1 \x{85}
1305 (\V)(\R) foo\x{85}bar y $1-$2 o-\x{85}
1306 (\R)(\V) foo\x{85}bar y $1-$2 \x{85}-b
1307 foo(\R)bar foo\r\nbar y $1 \r\n
1308 (\V)(\R) foo\r\nbar y $1-$2 o-\r\n
1309 (\R)(\V) foo\r\nbar y $1-$2 \r\n-b
1310 foo(\R)bar foo\r\nbar y $1 \r\n
1311 (\V)(\R) foo\r\nbar y $1-$2 o-\r\n
1312 (\R)(\V) foo\r\nbar y $1-$2 \r\n-b
1313 foo(\R)bar foo\rbar y $1 \r
1314 (\V)(\R) foo\rbar y $1-$2 o-\r
1315 (\R)(\V) foo\rbar y $1-$2 \r-b
1317 foo(\v+)bar foo\r\n\x{85}\r\n\nbar y $1 \r\n\x{85}\r\n\n
1318 (\V+)(\v) foo\r\n\x{85}\r\n\nbar y $1-$2 foo-\r
1319 (\v+)(\V) foo\r\n\x{85}\r\n\nbar y $1-$2 \r\n\x{85}\r\n\n-b
1320 foo(\v)bar foo\x{85}bar y $1 \x{85}
1321 (\V)(\v) foo\x{85}bar y $1-$2 o-\x{85}
1322 (\v)(\V) foo\x{85}bar y $1-$2 \x{85}-b
1323 foo(\v)bar foo\rbar y $1 \r
1324 (\V)(\v) foo\rbar y $1-$2 o-\r
1325 (\v)(\V) foo\rbar y $1-$2 \r-b
1328 foo(\h+)bar foo\t\x{A0}bar y $1 \t\x{A0}
1329 (\H+)(\h) foo\t\x{A0}bar y $1-$2 foo-\t
1330 (\h+)(\H) foo\t\x{A0}bar y $1-$2 \t\x{A0}-b
1331 foo(\h)bar foo\x{A0}bar y $1 \x{A0}
1332 (\H)(\h) foo\x{A0}bar y $1-$2 o-\x{A0}
1333 (\h)(\H) foo\x{A0}bar y $1-$2 \x{A0}-b
1334 foo(\h)bar foo\tbar y $1 \t
1335 (\H)(\h) foo\tbar y $1-$2 o-\t
1336 (\h)(\H) foo\tbar y $1-$2 \t-b
1339 ^(?:(\d)x)?\d$ 1 y ${\(defined($1)?1:0)} 0
1340 .*?(?:(\w)|(\w))x abx y $1-$2 b-