/[pcre]/code/trunk/testdata/testoutput2
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Contents of /code/trunk/testdata/testoutput2

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Revision 69 - (show annotations) (download)
Sat Feb 24 21:40:18 2007 UTC (7 years, 2 months ago) by nigel
File size: 82791 byte(s)
Load pcre-4.3 into code/trunk.

1 PCRE version 4.3 21-May-2003
2
3 /(a)b|/
4 Capturing subpattern count = 1
5 No options
6 No first char
7 No need char
8
9 /abc/
10 Capturing subpattern count = 0
11 No options
12 First char = 'a'
13 Need char = 'c'
14 abc
15 0: abc
16 defabc
17 0: abc
18 \Aabc
19 0: abc
20 *** Failers
21 No match
22 \Adefabc
23 No match
24 ABC
25 No match
26
27 /^abc/
28 Capturing subpattern count = 0
29 Options: anchored
30 No first char
31 No need char
32 abc
33 0: abc
34 \Aabc
35 0: abc
36 *** Failers
37 No match
38 defabc
39 No match
40 \Adefabc
41 No match
42
43 /a+bc/
44 Capturing subpattern count = 0
45 No options
46 First char = 'a'
47 Need char = 'c'
48
49 /a*bc/
50 Capturing subpattern count = 0
51 No options
52 No first char
53 Need char = 'c'
54
55 /a{3}bc/
56 Capturing subpattern count = 0
57 No options
58 First char = 'a'
59 Need char = 'c'
60
61 /(abc|a+z)/
62 Capturing subpattern count = 1
63 No options
64 First char = 'a'
65 No need char
66
67 /^abc$/
68 Capturing subpattern count = 0
69 Options: anchored
70 No first char
71 No need char
72 abc
73 0: abc
74 *** Failers
75 No match
76 def\nabc
77 No match
78
79 /ab\gdef/X
80 Failed: unrecognized character follows \ at offset 3
81
82 /(?X)ab\gdef/X
83 Failed: unrecognized character follows \ at offset 7
84
85 /x{5,4}/
86 Failed: numbers out of order in {} quantifier at offset 5
87
88 /z{65536}/
89 Failed: number too big in {} quantifier at offset 7
90
91 /[abcd/
92 Failed: missing terminating ] for character class at offset 5
93
94 /(?X)[\B]/
95 Failed: invalid escape sequence in character class at offset 6
96
97 /[z-a]/
98 Failed: range out of order in character class at offset 3
99
100 /^*/
101 Failed: nothing to repeat at offset 1
102
103 /(abc/
104 Failed: missing ) at offset 4
105
106 /(?# abc/
107 Failed: missing ) after comment at offset 7
108
109 /(?z)abc/
110 Failed: unrecognized character after (? at offset 2
111
112 /.*b/
113 Capturing subpattern count = 0
114 No options
115 First char at start or follows \n
116 Need char = 'b'
117
118 /.*?b/
119 Capturing subpattern count = 0
120 No options
121 First char at start or follows \n
122 Need char = 'b'
123
124 /cat|dog|elephant/
125 Capturing subpattern count = 0
126 No options
127 No first char
128 No need char
129 this sentence eventually mentions a cat
130 0: cat
131 this sentences rambles on and on for a while and then reaches elephant
132 0: elephant
133
134 /cat|dog|elephant/S
135 Capturing subpattern count = 0
136 No options
137 No first char
138 No need char
139 Study size = 40
140 Starting character set: c d e
141 this sentence eventually mentions a cat
142 0: cat
143 this sentences rambles on and on for a while and then reaches elephant
144 0: elephant
145
146 /cat|dog|elephant/iS
147 Capturing subpattern count = 0
148 Options: caseless
149 No first char
150 No need char
151 Study size = 40
152 Starting character set: C D E c d e
153 this sentence eventually mentions a CAT cat
154 0: CAT
155 this sentences rambles on and on for a while to elephant ElePhant
156 0: elephant
157
158 /a|[bcd]/S
159 Capturing subpattern count = 0
160 No options
161 No first char
162 No need char
163 Study size = 40
164 Starting character set: a b c d
165
166 /(a|[^\dZ])/S
167 Capturing subpattern count = 1
168 No options
169 No first char
170 No need char
171 Study size = 40
172 Starting character set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a
173 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19
174 \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / : ; < = >
175 ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y [ \ ] ^ _ ` a b c d
176 e f g h i j k l m n o p q r s t u v w x y z { | } ~ \x7f \x80 \x81 \x82 \x83
177 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 \x91 \x92
178 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f \xa0 \xa1
179 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae \xaf \xb0
180 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd \xbe \xbf
181 \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc \xcd \xce
182 \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb \xdc \xdd
183 \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea \xeb \xec
184 \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 \xfa \xfb
185 \xfc \xfd \xfe \xff
186
187 /(a|b)*[\s]/S
188 Capturing subpattern count = 1
189 No options
190 No first char
191 No need char
192 Study size = 40
193 Starting character set: \x09 \x0a \x0c \x0d \x20 a b
194
195 /(ab\2)/
196 Failed: reference to non-existent subpattern at offset 6
197
198 /{4,5}abc/
199 Failed: nothing to repeat at offset 4
200
201 /(a)(b)(c)\2/
202 Capturing subpattern count = 3
203 Max back reference = 2
204 No options
205 First char = 'a'
206 Need char = 'c'
207 abcb
208 0: abcb
209 1: a
210 2: b
211 3: c
212 \O0abcb
213 Matched, but too many substrings
214 \O3abcb
215 Matched, but too many substrings
216 0: abcb
217 \O6abcb
218 Matched, but too many substrings
219 0: abcb
220 1: a
221 \O9abcb
222 Matched, but too many substrings
223 0: abcb
224 1: a
225 2: b
226 \O12abcb
227 0: abcb
228 1: a
229 2: b
230 3: c
231
232 /(a)bc|(a)(b)\2/
233 Capturing subpattern count = 3
234 Max back reference = 2
235 No options
236 First char = 'a'
237 No need char
238 abc
239 0: abc
240 1: a
241 \O0abc
242 Matched, but too many substrings
243 \O3abc
244 Matched, but too many substrings
245 0: abc
246 \O6abc
247 0: abc
248 1: a
249 aba
250 0: aba
251 1: <unset>
252 2: a
253 3: b
254 \O0aba
255 Matched, but too many substrings
256 \O3aba
257 Matched, but too many substrings
258 0: aba
259 \O6aba
260 Matched, but too many substrings
261 0: aba
262 1: <unset>
263 \O9aba
264 Matched, but too many substrings
265 0: aba
266 1: <unset>
267 2: a
268 \O12aba
269 0: aba
270 1: <unset>
271 2: a
272 3: b
273
274 /abc$/E
275 Capturing subpattern count = 0
276 Options: dollar_endonly
277 First char = 'a'
278 Need char = 'c'
279 abc
280 0: abc
281 *** Failers
282 No match
283 abc\n
284 No match
285 abc\ndef
286 No match
287
288 /(a)(b)(c)(d)(e)\6/
289 Failed: reference to non-existent subpattern at offset 17
290
291 /the quick brown fox/
292 Capturing subpattern count = 0
293 No options
294 First char = 't'
295 Need char = 'x'
296 the quick brown fox
297 0: the quick brown fox
298 this is a line with the quick brown fox
299 0: the quick brown fox
300
301 /the quick brown fox/A
302 Capturing subpattern count = 0
303 Options: anchored
304 No first char
305 No need char
306 the quick brown fox
307 0: the quick brown fox
308 *** Failers
309 No match
310 this is a line with the quick brown fox
311 No match
312
313 /ab(?z)cd/
314 Failed: unrecognized character after (? at offset 4
315
316 /^abc|def/
317 Capturing subpattern count = 0
318 No options
319 No first char
320 No need char
321 abcdef
322 0: abc
323 abcdef\B
324 0: def
325
326 /.*((abc)$|(def))/
327 Capturing subpattern count = 3
328 No options
329 First char at start or follows \n
330 No need char
331 defabc
332 0: defabc
333 1: abc
334 2: abc
335 \Zdefabc
336 0: def
337 1: def
338 2: <unset>
339 3: def
340
341 /abc/P
342 abc
343 0: abc
344 *** Failers
345 No match: POSIX code 17: match failed
346
347 /^abc|def/P
348 abcdef
349 0: abc
350 abcdef\B
351 0: def
352
353 /.*((abc)$|(def))/P
354 defabc
355 0: defabc
356 1: abc
357 2: abc
358 \Zdefabc
359 0: def
360 1: def
361 3: def
362
363 /the quick brown fox/P
364 the quick brown fox
365 0: the quick brown fox
366 *** Failers
367 No match: POSIX code 17: match failed
368 The Quick Brown Fox
369 No match: POSIX code 17: match failed
370
371 /the quick brown fox/Pi
372 the quick brown fox
373 0: the quick brown fox
374 The Quick Brown Fox
375 0: The Quick Brown Fox
376
377 /abc.def/P
378 *** Failers
379 No match: POSIX code 17: match failed
380 abc\ndef
381 No match: POSIX code 17: match failed
382
383 /abc$/P
384 abc
385 0: abc
386 abc\n
387 0: abc
388
389 /(abc)\2/P
390 Failed: POSIX code 15: bad back reference at offset 7
391
392 /(abc\1)/P
393 abc
394 No match: POSIX code 17: match failed
395
396 /)/
397 Failed: unmatched parentheses at offset 0
398
399 /a[]b/
400 Failed: missing terminating ] for character class at offset 4
401
402 /[^aeiou ]{3,}/
403 Capturing subpattern count = 0
404 No options
405 No first char
406 No need char
407 co-processors, and for
408 0: -pr
409
410 /<.*>/
411 Capturing subpattern count = 0
412 No options
413 First char = '<'
414 Need char = '>'
415 abc<def>ghi<klm>nop
416 0: <def>ghi<klm>
417
418 /<.*?>/
419 Capturing subpattern count = 0
420 No options
421 First char = '<'
422 Need char = '>'
423 abc<def>ghi<klm>nop
424 0: <def>
425
426 /<.*>/U
427 Capturing subpattern count = 0
428 Options: ungreedy
429 First char = '<'
430 Need char = '>'
431 abc<def>ghi<klm>nop
432 0: <def>
433
434 /(?U)<.*>/
435 Capturing subpattern count = 0
436 Options: ungreedy
437 First char = '<'
438 Need char = '>'
439 abc<def>ghi<klm>nop
440 0: <def>
441
442 /<.*?>/U
443 Capturing subpattern count = 0
444 Options: ungreedy
445 First char = '<'
446 Need char = '>'
447 abc<def>ghi<klm>nop
448 0: <def>ghi<klm>
449
450 /={3,}/U
451 Capturing subpattern count = 0
452 Options: ungreedy
453 First char = '='
454 Need char = '='
455 abc========def
456 0: ===
457
458 /(?U)={3,}?/
459 Capturing subpattern count = 0
460 Options: ungreedy
461 First char = '='
462 Need char = '='
463 abc========def
464 0: ========
465
466 /(?<!bar|cattle)foo/
467 Capturing subpattern count = 0
468 No options
469 First char = 'f'
470 Need char = 'o'
471 foo
472 0: foo
473 catfoo
474 0: foo
475 *** Failers
476 No match
477 the barfoo
478 No match
479 and cattlefoo
480 No match
481
482 /(?<=a+)b/
483 Failed: lookbehind assertion is not fixed length at offset 6
484
485 /(?<=aaa|b{0,3})b/
486 Failed: lookbehind assertion is not fixed length at offset 14
487
488 /(?<!(foo)a\1)bar/
489 Failed: lookbehind assertion is not fixed length at offset 12
490
491 /(?i)abc/
492 Capturing subpattern count = 0
493 Options: caseless
494 First char = 'a' (caseless)
495 Need char = 'c' (caseless)
496
497 /(a|(?m)a)/
498 Capturing subpattern count = 1
499 No options
500 First char = 'a'
501 No need char
502
503 /(?i)^1234/
504 Capturing subpattern count = 0
505 Options: anchored caseless
506 No first char
507 No need char
508
509 /(^b|(?i)^d)/
510 Capturing subpattern count = 1
511 Options: anchored
512 Case state changes
513 No first char
514 No need char
515
516 /(?s).*/
517 Capturing subpattern count = 0
518 Options: anchored dotall
519 No first char
520 No need char
521
522 /[abcd]/S
523 Capturing subpattern count = 0
524 No options
525 No first char
526 No need char
527 Study size = 40
528 Starting character set: a b c d
529
530 /(?i)[abcd]/S
531 Capturing subpattern count = 0
532 Options: caseless
533 No first char
534 No need char
535 Study size = 40
536 Starting character set: A B C D a b c d
537
538 /(?m)[xy]|(b|c)/S
539 Capturing subpattern count = 1
540 Options: multiline
541 No first char
542 No need char
543 Study size = 40
544 Starting character set: b c x y
545
546 /(^a|^b)/m
547 Capturing subpattern count = 1
548 Options: multiline
549 First char at start or follows \n
550 No need char
551
552 /(?i)(^a|^b)/m
553 Capturing subpattern count = 1
554 Options: caseless multiline
555 First char at start or follows \n
556 No need char
557
558 /(a)(?(1)a|b|c)/
559 Failed: conditional group contains more than two branches at offset 13
560
561 /(?(?=a)a|b|c)/
562 Failed: conditional group contains more than two branches at offset 12
563
564 /(?(1a)/
565 Failed: malformed number after (?( at offset 4
566
567 /(?(?i))/
568 Failed: assertion expected after (?( at offset 3
569
570 /(?(abc))/
571 Failed: assertion expected after (?( at offset 3
572
573 /(?(?<ab))/
574 Failed: unrecognized character after (?< at offset 5
575
576 /((?s)blah)\s+\1/
577 Capturing subpattern count = 1
578 Max back reference = 1
579 No options
580 First char = 'b'
581 Need char = 'h'
582
583 /((?i)blah)\s+\1/
584 Capturing subpattern count = 1
585 Max back reference = 1
586 No options
587 Case state changes
588 First char = 'b' (caseless)
589 Need char = 'h' (caseless)
590
591 /((?i)b)/DS
592 ------------------------------------------------------------------
593 0 16 Bra 0
594 3 8 Bra 1
595 6 01 Opt
596 8 1 b
597 11 8 Ket
598 14 00 Opt
599 16 16 Ket
600 19 End
601 ------------------------------------------------------------------
602 Capturing subpattern count = 1
603 No options
604 Case state changes
605 First char = 'b' (caseless)
606 No need char
607 Study returned NULL
608
609 /(a*b|(?i:c*(?-i)d))/S
610 Capturing subpattern count = 1
611 No options
612 Case state changes
613 No first char
614 No need char
615 Study size = 40
616 Starting character set: C a b c d
617
618 /a$/
619 Capturing subpattern count = 0
620 No options
621 First char = 'a'
622 No need char
623 a
624 0: a
625 a\n
626 0: a
627 *** Failers
628 No match
629 \Za
630 No match
631 \Za\n
632 No match
633
634 /a$/m
635 Capturing subpattern count = 0
636 Options: multiline
637 First char = 'a'
638 No need char
639 a
640 0: a
641 a\n
642 0: a
643 \Za\n
644 0: a
645 *** Failers
646 No match
647 \Za
648 No match
649
650 /\Aabc/m
651 Capturing subpattern count = 0
652 Options: anchored multiline
653 No first char
654 No need char
655
656 /^abc/m
657 Capturing subpattern count = 0
658 Options: multiline
659 First char at start or follows \n
660 Need char = 'c'
661
662 /^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/
663 Capturing subpattern count = 5
664 Options: anchored
665 No first char
666 No need char
667 aaaaabbbbbcccccdef
668 0: aaaaabbbbbcccccdef
669 1: aaaaabbbbbcccccdef
670 2: aaaaa
671 3: b
672 4: bbbbccccc
673 5: def
674
675 /(?<=foo)[ab]/S
676 Capturing subpattern count = 0
677 No options
678 No first char
679 No need char
680 Study size = 40
681 Starting character set: a b
682
683 /(?<!foo)(alpha|omega)/S
684 Capturing subpattern count = 1
685 No options
686 No first char
687 Need char = 'a'
688 Study size = 40
689 Starting character set: a o
690
691 /(?!alphabet)[ab]/S
692 Capturing subpattern count = 0
693 No options
694 No first char
695 No need char
696 Study size = 40
697 Starting character set: a b
698
699 /(?<=foo\n)^bar/m
700 Capturing subpattern count = 0
701 Options: multiline
702 First char at start or follows \n
703 Need char = 'r'
704
705 /(?>^abc)/m
706 Capturing subpattern count = 0
707 Options: multiline
708 First char at start or follows \n
709 Need char = 'c'
710 abc
711 0: abc
712 def\nabc
713 0: abc
714 *** Failers
715 No match
716 defabc
717 No match
718
719 /(?<=ab(c+)d)ef/
720 Failed: lookbehind assertion is not fixed length at offset 11
721
722 /(?<=ab(?<=c+)d)ef/
723 Failed: lookbehind assertion is not fixed length at offset 12
724
725 /(?<=ab(c|de)f)g/
726 Failed: lookbehind assertion is not fixed length at offset 13
727
728 /The next three are in testinput2 because they have variable length branches/
729 Capturing subpattern count = 0
730 No options
731 First char = 'T'
732 Need char = 's'
733
734 /(?<=bullock|donkey)-cart/
735 Capturing subpattern count = 0
736 No options
737 First char = '-'
738 Need char = 't'
739 the bullock-cart
740 0: -cart
741 a donkey-cart race
742 0: -cart
743 *** Failers
744 No match
745 cart
746 No match
747 horse-and-cart
748 No match
749
750 /(?<=ab(?i)x|y|z)/
751 Capturing subpattern count = 0
752 No options
753 Case state changes
754 No first char
755 No need char
756
757 /(?>.*)(?<=(abcd)|(xyz))/
758 Capturing subpattern count = 2
759 No options
760 First char at start or follows \n
761 No need char
762 alphabetabcd
763 0: alphabetabcd
764 1: abcd
765 endingxyz
766 0: endingxyz
767 1: <unset>
768 2: xyz
769
770 /(?<=ab(?i)x(?-i)y|(?i)z|b)ZZ/
771 Capturing subpattern count = 0
772 No options
773 Case state changes
774 First char = 'Z'
775 Need char = 'Z'
776 abxyZZ
777 0: ZZ
778 abXyZZ
779 0: ZZ
780 ZZZ
781 0: ZZ
782 zZZ
783 0: ZZ
784 bZZ
785 0: ZZ
786 BZZ
787 0: ZZ
788 *** Failers
789 No match
790 ZZ
791 No match
792 abXYZZ
793 No match
794 zzz
795 No match
796 bzz
797 No match
798
799 /(?<!(foo)a)bar/
800 Capturing subpattern count = 1
801 No options
802 First char = 'b'
803 Need char = 'r'
804 bar
805 0: bar
806 foobbar
807 0: bar
808 *** Failers
809 No match
810 fooabar
811 No match
812
813 /This one is here because Perl 5.005_02 doesn't fail it/
814 Capturing subpattern count = 0
815 No options
816 First char = 'T'
817 Need char = 't'
818
819 /^(a)?(?(1)a|b)+$/
820 Capturing subpattern count = 1
821 Options: anchored
822 No first char
823 No need char
824 *** Failers
825 No match
826 a
827 No match
828
829 /This one is here because I think Perl 5.005_02 gets the setting of $1 wrong/
830 Capturing subpattern count = 0
831 No options
832 First char = 'T'
833 Need char = 'g'
834
835 /^(a\1?){4}$/
836 Capturing subpattern count = 1
837 Max back reference = 1
838 Options: anchored
839 No first char
840 No need char
841 aaaaaa
842 0: aaaaaa
843 1: aa
844
845 /These are syntax tests from Perl 5.005/
846 Capturing subpattern count = 0
847 No options
848 First char = 'T'
849 Need char = '5'
850
851 /a[b-a]/
852 Failed: range out of order in character class at offset 4
853
854 /a[]b/
855 Failed: missing terminating ] for character class at offset 4
856
857 /a[/
858 Failed: missing terminating ] for character class at offset 2
859
860 /*a/
861 Failed: nothing to repeat at offset 0
862
863 /(*)b/
864 Failed: nothing to repeat at offset 1
865
866 /abc)/
867 Failed: unmatched parentheses at offset 3
868
869 /(abc/
870 Failed: missing ) at offset 4
871
872 /a**/
873 Failed: nothing to repeat at offset 2
874
875 /)(/
876 Failed: unmatched parentheses at offset 0
877
878 /\1/
879 Failed: reference to non-existent subpattern at offset 2
880
881 /\2/
882 Failed: reference to non-existent subpattern at offset 2
883
884 /(a)|\2/
885 Failed: reference to non-existent subpattern at offset 6
886
887 /a[b-a]/i
888 Failed: range out of order in character class at offset 4
889
890 /a[]b/i
891 Failed: missing terminating ] for character class at offset 4
892
893 /a[/i
894 Failed: missing terminating ] for character class at offset 2
895
896 /*a/i
897 Failed: nothing to repeat at offset 0
898
899 /(*)b/i
900 Failed: nothing to repeat at offset 1
901
902 /abc)/i
903 Failed: unmatched parentheses at offset 3
904
905 /(abc/i
906 Failed: missing ) at offset 4
907
908 /a**/i
909 Failed: nothing to repeat at offset 2
910
911 /)(/i
912 Failed: unmatched parentheses at offset 0
913
914 /:(?:/
915 Failed: missing ) at offset 4
916
917 /(?<%)b/
918 Failed: unrecognized character after (?< at offset 3
919
920 /a(?{)b/
921 Failed: unrecognized character after (? at offset 3
922
923 /a(?{{})b/
924 Failed: unrecognized character after (? at offset 3
925
926 /a(?{}})b/
927 Failed: unrecognized character after (? at offset 3
928
929 /a(?{"{"})b/
930 Failed: unrecognized character after (? at offset 3
931
932 /a(?{"{"}})b/
933 Failed: unrecognized character after (? at offset 3
934
935 /(?(1?)a|b)/
936 Failed: malformed number after (?( at offset 4
937
938 /(?(1)a|b|c)/
939 Failed: conditional group contains more than two branches at offset 10
940
941 /[a[:xyz:/
942 Failed: missing terminating ] for character class at offset 8
943
944 /(?<=x+)y/
945 Failed: lookbehind assertion is not fixed length at offset 6
946
947 /a{37,17}/
948 Failed: numbers out of order in {} quantifier at offset 7
949
950 /abc/\
951 Failed: \ at end of pattern at offset 4
952
953 /abc/\P
954 Failed: POSIX code 9: bad escape sequence at offset 4
955
956 /abc/\i
957 Failed: \ at end of pattern at offset 4
958
959 /(a)bc(d)/
960 Capturing subpattern count = 2
961 No options
962 First char = 'a'
963 Need char = 'd'
964 abcd
965 0: abcd
966 1: a
967 2: d
968 abcd\C2
969 0: abcd
970 1: a
971 2: d
972 2C d (1)
973 abcd\C5
974 0: abcd
975 1: a
976 2: d
977 copy substring 5 failed -7
978
979 /(.{20})/
980 Capturing subpattern count = 1
981 No options
982 No first char
983 No need char
984 abcdefghijklmnopqrstuvwxyz
985 0: abcdefghijklmnopqrst
986 1: abcdefghijklmnopqrst
987 abcdefghijklmnopqrstuvwxyz\C1
988 0: abcdefghijklmnopqrst
989 1: abcdefghijklmnopqrst
990 copy substring 1 failed -6
991 abcdefghijklmnopqrstuvwxyz\G1
992 0: abcdefghijklmnopqrst
993 1: abcdefghijklmnopqrst
994 1G abcdefghijklmnopqrst (20)
995
996 /(.{15})/
997 Capturing subpattern count = 1
998 No options
999 No first char
1000 No need char
1001 abcdefghijklmnopqrstuvwxyz
1002 0: abcdefghijklmno
1003 1: abcdefghijklmno
1004 abcdefghijklmnopqrstuvwxyz\C1\G1
1005 0: abcdefghijklmno
1006 1: abcdefghijklmno
1007 1C abcdefghijklmno (15)
1008 1G abcdefghijklmno (15)
1009
1010 /(.{16})/
1011 Capturing subpattern count = 1
1012 No options
1013 No first char
1014 No need char
1015 abcdefghijklmnopqrstuvwxyz
1016 0: abcdefghijklmnop
1017 1: abcdefghijklmnop
1018 abcdefghijklmnopqrstuvwxyz\C1\G1\L
1019 0: abcdefghijklmnop
1020 1: abcdefghijklmnop
1021 copy substring 1 failed -6
1022 1G abcdefghijklmnop (16)
1023 0L abcdefghijklmnop
1024 1L abcdefghijklmnop
1025
1026 /^(a|(bc))de(f)/
1027 Capturing subpattern count = 3
1028 Options: anchored
1029 No first char
1030 No need char
1031 adef\G1\G2\G3\G4\L
1032 0: adef
1033 1: a
1034 2: <unset>
1035 3: f
1036 1G a (1)
1037 2G (0)
1038 3G f (1)
1039 get substring 4 failed -7
1040 0L adef
1041 1L a
1042 2L
1043 3L f
1044 bcdef\G1\G2\G3\G4\L
1045 0: bcdef
1046 1: bc
1047 2: bc
1048 3: f
1049 1G bc (2)
1050 2G bc (2)
1051 3G f (1)
1052 get substring 4 failed -7
1053 0L bcdef
1054 1L bc
1055 2L bc
1056 3L f
1057 adefghijk\C0
1058 0: adef
1059 1: a
1060 2: <unset>
1061 3: f
1062 0C adef (4)
1063
1064 /^abc\00def/
1065 Capturing subpattern count = 0
1066 Options: anchored
1067 No first char
1068 No need char
1069 abc\00def\L\C0
1070 0: abc\x00def
1071 0C abc (7)
1072 0L abc
1073
1074 /word ((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+
1075 )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+
1076 )?)?)?)?)?)?)?)?)?otherword/M
1077 Memory allocation (code space): 428
1078 Capturing subpattern count = 8
1079 No options
1080 First char = 'w'
1081 Need char = 'd'
1082
1083 /.*X/D
1084 ------------------------------------------------------------------
1085 0 8 Bra 0
1086 3 Any*
1087 5 1 X
1088 8 8 Ket
1089 11 End
1090 ------------------------------------------------------------------
1091 Capturing subpattern count = 0
1092 No options
1093 First char at start or follows \n
1094 Need char = 'X'
1095
1096 /.*X/Ds
1097 ------------------------------------------------------------------
1098 0 8 Bra 0
1099 3 Any*
1100 5 1 X
1101 8 8 Ket
1102 11 End
1103 ------------------------------------------------------------------
1104 Capturing subpattern count = 0
1105 Options: anchored dotall
1106 No first char
1107 Need char = 'X'
1108
1109 /(.*X|^B)/D
1110 ------------------------------------------------------------------
1111 0 21 Bra 0
1112 3 8 Bra 1
1113 6 Any*
1114 8 1 X
1115 11 7 Alt
1116 14 ^
1117 15 1 B
1118 18 15 Ket
1119 21 21 Ket
1120 24 End
1121 ------------------------------------------------------------------
1122 Capturing subpattern count = 1
1123 No options
1124 First char at start or follows \n
1125 No need char
1126
1127 /(.*X|^B)/Ds
1128 ------------------------------------------------------------------
1129 0 21 Bra 0
1130 3 8 Bra 1
1131 6 Any*
1132 8 1 X
1133 11 7 Alt
1134 14 ^
1135 15 1 B
1136 18 15 Ket
1137 21 21 Ket
1138 24 End
1139 ------------------------------------------------------------------
1140 Capturing subpattern count = 1
1141 Options: anchored dotall
1142 No first char
1143 No need char
1144
1145 /(?s)(.*X|^B)/D
1146 ------------------------------------------------------------------
1147 0 21 Bra 0
1148 3 8 Bra 1
1149 6 Any*
1150 8 1 X
1151 11 7 Alt
1152 14 ^
1153 15 1 B
1154 18 15 Ket
1155 21 21 Ket
1156 24 End
1157 ------------------------------------------------------------------
1158 Capturing subpattern count = 1
1159 Options: anchored dotall
1160 No first char
1161 No need char
1162
1163 /(?s:.*X|^B)/D
1164 ------------------------------------------------------------------
1165 0 27 Bra 0
1166 3 10 Bra 0
1167 6 04 Opt
1168 8 Any*
1169 10 1 X
1170 13 9 Alt
1171 16 04 Opt
1172 18 ^
1173 19 1 B
1174 22 19 Ket
1175 25 00 Opt
1176 27 27 Ket
1177 30 End
1178 ------------------------------------------------------------------
1179 Capturing subpattern count = 0
1180 No options
1181 First char at start or follows \n
1182 No need char
1183
1184 /\Biss\B/+
1185 Capturing subpattern count = 0
1186 No options
1187 First char = 'i'
1188 Need char = 's'
1189 Mississippi
1190 0: iss
1191 0+ issippi
1192
1193 /\Biss\B/+P
1194 Mississippi
1195 0: iss
1196 0+ issippi
1197
1198 /iss/G+
1199 Capturing subpattern count = 0
1200 No options
1201 First char = 'i'
1202 Need char = 's'
1203 Mississippi
1204 0: iss
1205 0+ issippi
1206 0: iss
1207 0+ ippi
1208
1209 /\Biss\B/G+
1210 Capturing subpattern count = 0
1211 No options
1212 First char = 'i'
1213 Need char = 's'
1214 Mississippi
1215 0: iss
1216 0+ issippi
1217
1218 /\Biss\B/g+
1219 Capturing subpattern count = 0
1220 No options
1221 First char = 'i'
1222 Need char = 's'
1223 Mississippi
1224 0: iss
1225 0+ issippi
1226 0: iss
1227 0+ ippi
1228 *** Failers
1229 No match
1230 Mississippi\A
1231 No match
1232
1233 /(?<=[Ms])iss/g+
1234 Capturing subpattern count = 0
1235 No options
1236 First char = 'i'
1237 Need char = 's'
1238 Mississippi
1239 0: iss
1240 0+ issippi
1241 0: iss
1242 0+ ippi
1243
1244 /(?<=[Ms])iss/G+
1245 Capturing subpattern count = 0
1246 No options
1247 First char = 'i'
1248 Need char = 's'
1249 Mississippi
1250 0: iss
1251 0+ issippi
1252
1253 /^iss/g+
1254 Capturing subpattern count = 0
1255 Options: anchored
1256 No first char
1257 No need char
1258 ississippi
1259 0: iss
1260 0+ issippi
1261
1262 /.*iss/g+
1263 Capturing subpattern count = 0
1264 No options
1265 First char at start or follows \n
1266 Need char = 's'
1267 abciss\nxyzisspqr
1268 0: abciss
1269 0+ \x0axyzisspqr
1270 0: xyziss
1271 0+ pqr
1272
1273 /.i./+g
1274 Capturing subpattern count = 0
1275 No options
1276 No first char
1277 Need char = 'i'
1278 Mississippi
1279 0: Mis
1280 0+ sissippi
1281 0: sis
1282 0+ sippi
1283 0: sip
1284 0+ pi
1285 Mississippi\A
1286 0: Mis
1287 0+ sissippi
1288 0: sis
1289 0+ sippi
1290 0: sip
1291 0+ pi
1292 Missouri river
1293 0: Mis
1294 0+ souri river
1295 0: ri
1296 0+ river
1297 0: riv
1298 0+ er
1299 Missouri river\A
1300 0: Mis
1301 0+ souri river
1302
1303 /^.is/+g
1304 Capturing subpattern count = 0
1305 Options: anchored
1306 No first char
1307 No need char
1308 Mississippi
1309 0: Mis
1310 0+ sissippi
1311
1312 /^ab\n/g+
1313 Capturing subpattern count = 0
1314 Options: anchored
1315 No first char
1316 No need char
1317 ab\nab\ncd
1318 0: ab\x0a
1319 0+ ab\x0acd
1320
1321 /^ab\n/mg+
1322 Capturing subpattern count = 0
1323 Options: multiline
1324 First char at start or follows \n
1325 Need char = 10
1326 ab\nab\ncd
1327 0: ab\x0a
1328 0+ ab\x0acd
1329 0: ab\x0a
1330 0+ cd
1331
1332 /abc/
1333 Capturing subpattern count = 0
1334 No options
1335 First char = 'a'
1336 Need char = 'c'
1337
1338 /abc|bac/
1339 Capturing subpattern count = 0
1340 No options
1341 No first char
1342 Need char = 'c'
1343
1344 /(abc|bac)/
1345 Capturing subpattern count = 1
1346 No options
1347 No first char
1348 Need char = 'c'
1349
1350 /(abc|(c|dc))/
1351 Capturing subpattern count = 2
1352 No options
1353 No first char
1354 Need char = 'c'
1355
1356 /(abc|(d|de)c)/
1357 Capturing subpattern count = 2
1358 No options
1359 No first char
1360 Need char = 'c'
1361
1362 /a*/
1363 Capturing subpattern count = 0
1364 No options
1365 No first char
1366 No need char
1367
1368 /a+/
1369 Capturing subpattern count = 0
1370 No options
1371 First char = 'a'
1372 No need char
1373
1374 /(baa|a+)/
1375 Capturing subpattern count = 1
1376 No options
1377 No first char
1378 Need char = 'a'
1379
1380 /a{0,3}/
1381 Capturing subpattern count = 0
1382 No options
1383 No first char
1384 No need char
1385
1386 /baa{3,}/
1387 Capturing subpattern count = 0
1388 No options
1389 First char = 'b'
1390 Need char = 'a'
1391
1392 /"([^\\"]+|\\.)*"/
1393 Capturing subpattern count = 1
1394 No options
1395 First char = '"'
1396 Need char = '"'
1397
1398 /(abc|ab[cd])/
1399 Capturing subpattern count = 1
1400 No options
1401 First char = 'a'
1402 No need char
1403
1404 /(a|.)/
1405 Capturing subpattern count = 1
1406 No options
1407 No first char
1408 No need char
1409
1410 /a|ba|\w/
1411 Capturing subpattern count = 0
1412 No options
1413 No first char
1414 No need char
1415
1416 /abc(?=pqr)/
1417 Capturing subpattern count = 0
1418 No options
1419 First char = 'a'
1420 Need char = 'r'
1421
1422 /...(?<=abc)/
1423 Capturing subpattern count = 0
1424 No options
1425 No first char
1426 No need char
1427
1428 /abc(?!pqr)/
1429 Capturing subpattern count = 0
1430 No options
1431 First char = 'a'
1432 Need char = 'c'
1433
1434 /ab./
1435 Capturing subpattern count = 0
1436 No options
1437 First char = 'a'
1438 Need char = 'b'
1439
1440 /ab[xyz]/
1441 Capturing subpattern count = 0
1442 No options
1443 First char = 'a'
1444 Need char = 'b'
1445
1446 /abc*/
1447 Capturing subpattern count = 0
1448 No options
1449 First char = 'a'
1450 Need char = 'b'
1451
1452 /ab.c*/
1453 Capturing subpattern count = 0
1454 No options
1455 First char = 'a'
1456 Need char = 'b'
1457
1458 /a.c*/
1459 Capturing subpattern count = 0
1460 No options
1461 First char = 'a'
1462 No need char
1463
1464 /.c*/
1465 Capturing subpattern count = 0
1466 No options
1467 No first char
1468 No need char
1469
1470 /ac*/
1471 Capturing subpattern count = 0
1472 No options
1473 First char = 'a'
1474 No need char
1475
1476 /(a.c*|b.c*)/
1477 Capturing subpattern count = 1
1478 No options
1479 No first char
1480 No need char
1481
1482 /a.c*|aba/
1483 Capturing subpattern count = 0
1484 No options
1485 First char = 'a'
1486 No need char
1487
1488 /.+a/
1489 Capturing subpattern count = 0
1490 No options
1491 No first char
1492 Need char = 'a'
1493
1494 /(?=abcda)a.*/
1495 Capturing subpattern count = 0
1496 No options
1497 First char = 'a'
1498 Need char = 'a'
1499
1500 /(?=a)a.*/
1501 Capturing subpattern count = 0
1502 No options
1503 First char = 'a'
1504 No need char
1505
1506 /a(b)*/
1507 Capturing subpattern count = 1
1508 No options
1509 First char = 'a'
1510 No need char
1511
1512 /a\d*/
1513 Capturing subpattern count = 0
1514 No options
1515 First char = 'a'
1516 No need char
1517
1518 /ab\d*/
1519 Capturing subpattern count = 0
1520 No options
1521 First char = 'a'
1522 Need char = 'b'
1523
1524 /a(\d)*/
1525 Capturing subpattern count = 1
1526 No options
1527 First char = 'a'
1528 No need char
1529
1530 /abcde{0,0}/
1531 Capturing subpattern count = 0
1532 No options
1533 First char = 'a'
1534 Need char = 'd'
1535
1536 /ab\d+/
1537 Capturing subpattern count = 0
1538 No options
1539 First char = 'a'
1540 Need char = 'b'
1541
1542 /a(?(1)b)/
1543 Capturing subpattern count = 0
1544 No options
1545 First char = 'a'
1546 No need char
1547
1548 /a(?(1)bag|big)/
1549 Capturing subpattern count = 0
1550 No options
1551 First char = 'a'
1552 Need char = 'g'
1553
1554 /a(?(1)bag|big)*/
1555 Capturing subpattern count = 0
1556 No options
1557 First char = 'a'
1558 No need char
1559
1560 /a(?(1)bag|big)+/
1561 Capturing subpattern count = 0
1562 No options
1563 First char = 'a'
1564 Need char = 'g'
1565
1566 /a(?(1)b..|b..)/
1567 Capturing subpattern count = 0
1568 No options
1569 First char = 'a'
1570 Need char = 'b'
1571
1572 /ab\d{0}e/
1573 Capturing subpattern count = 0
1574 No options
1575 First char = 'a'
1576 Need char = 'e'
1577
1578 /a?b?/
1579 Capturing subpattern count = 0
1580 No options
1581 No first char
1582 No need char
1583 a
1584 0: a
1585 b
1586 0: b
1587 ab
1588 0: ab
1589 \
1590 0:
1591 *** Failers
1592 0:
1593 \N
1594 No match
1595
1596 /|-/
1597 Capturing subpattern count = 0
1598 No options
1599 No first char
1600 No need char
1601 abcd
1602 0:
1603 -abc
1604 0:
1605 \Nab-c
1606 0: -
1607 *** Failers
1608 0:
1609 \Nabc
1610 No match
1611
1612 /a*(b+)(z)(z)/P
1613 aaaabbbbzzzz
1614 0: aaaabbbbzz
1615 1: bbbb
1616 2: z
1617 3: z
1618 aaaabbbbzzzz\O0
1619 aaaabbbbzzzz\O1
1620 0: aaaabbbbzz
1621 aaaabbbbzzzz\O2
1622 0: aaaabbbbzz
1623 1: bbbb
1624 aaaabbbbzzzz\O3
1625 0: aaaabbbbzz
1626 1: bbbb
1627 2: z
1628 aaaabbbbzzzz\O4
1629 0: aaaabbbbzz
1630 1: bbbb
1631 2: z
1632 3: z
1633 aaaabbbbzzzz\O5
1634 0: aaaabbbbzz
1635 1: bbbb
1636 2: z
1637 3: z
1638
1639 /^.?abcd/S
1640 Capturing subpattern count = 0
1641 Options: anchored
1642 No first char
1643 Need char = 'd'
1644 Study returned NULL
1645
1646 /\( # ( at start
1647 (?: # Non-capturing bracket
1648 (?>[^()]+) # Either a sequence of non-brackets (no backtracking)
1649 | # Or
1650 (?R) # Recurse - i.e. nested bracketed string
1651 )* # Zero or more contents
1652 \) # Closing )
1653 /x
1654 Capturing subpattern count = 0
1655 Options: extended
1656 First char = '('
1657 Need char = ')'
1658 (abcd)
1659 0: (abcd)
1660 (abcd)xyz
1661 0: (abcd)
1662 xyz(abcd)
1663 0: (abcd)
1664 (ab(xy)cd)pqr
1665 0: (ab(xy)cd)
1666 (ab(xycd)pqr
1667 0: (xycd)
1668 () abc ()
1669 0: ()
1670 12(abcde(fsh)xyz(foo(bar))lmno)89
1671 0: (abcde(fsh)xyz(foo(bar))lmno)
1672 *** Failers
1673 No match
1674 abcd
1675 No match
1676 abcd)
1677 No match
1678 (abcd
1679 No match
1680
1681 /\( ( (?>[^()]+) | (?R) )* \) /xg
1682 Capturing subpattern count = 1
1683 Options: extended
1684 First char = '('
1685 Need char = ')'
1686 (ab(xy)cd)pqr
1687 0: (ab(xy)cd)
1688 1: cd
1689 1(abcd)(x(y)z)pqr
1690 0: (abcd)
1691 1: abcd
1692 0: (x(y)z)
1693 1: z
1694
1695 /\( (?: (?>[^()]+) | (?R) ) \) /x
1696 Capturing subpattern count = 0
1697 Options: extended
1698 First char = '('
1699 Need char = ')'
1700 (abcd)
1701 0: (abcd)
1702 (ab(xy)cd)
1703 0: (xy)
1704 (a(b(c)d)e)
1705 0: (c)
1706 ((ab))
1707 0: ((ab))
1708 *** Failers
1709 No match
1710 ()
1711 No match
1712
1713 /\( (?: (?>[^()]+) | (?R) )? \) /x
1714 Capturing subpattern count = 0
1715 Options: extended
1716 First char = '('
1717 Need char = ')'
1718 ()
1719 0: ()
1720 12(abcde(fsh)xyz(foo(bar))lmno)89
1721 0: (fsh)
1722
1723 /\( ( (?>[^()]+) | (?R) )* \) /x
1724 Capturing subpattern count = 1
1725 Options: extended
1726 First char = '('
1727 Need char = ')'
1728 (ab(xy)cd)
1729 0: (ab(xy)cd)
1730 1: cd
1731
1732 /\( ( ( (?>[^()]+) | (?R) )* ) \) /x
1733 Capturing subpattern count = 2
1734 Options: extended
1735 First char = '('
1736 Need char = ')'
1737 (ab(xy)cd)
1738 0: (ab(xy)cd)
1739 1: ab(xy)cd
1740 2: cd
1741
1742 /\( (123)? ( ( (?>[^()]+) | (?R) )* ) \) /x
1743 Capturing subpattern count = 3
1744 Options: extended
1745 First char = '('
1746 Need char = ')'
1747 (ab(xy)cd)
1748 0: (ab(xy)cd)
1749 1: <unset>
1750 2: ab(xy)cd
1751 3: cd
1752 (123ab(xy)cd)
1753 0: (123ab(xy)cd)
1754 1: 123
1755 2: ab(xy)cd
1756 3: cd
1757
1758 /\( ( (123)? ( (?>[^()]+) | (?R) )* ) \) /x
1759 Capturing subpattern count = 3
1760 Options: extended
1761 First char = '('
1762 Need char = ')'
1763 (ab(xy)cd)
1764 0: (ab(xy)cd)
1765 1: ab(xy)cd
1766 2: <unset>
1767 3: cd
1768 (123ab(xy)cd)
1769 0: (123ab(xy)cd)
1770 1: 123ab(xy)cd
1771 2: 123
1772 3: cd
1773
1774 /\( (((((((((( ( (?>[^()]+) | (?R) )* )))))))))) \) /x
1775 Capturing subpattern count = 11
1776 Options: extended
1777 First char = '('
1778 Need char = ')'
1779 (ab(xy)cd)
1780 0: (ab(xy)cd)
1781 1: ab(xy)cd
1782 2: ab(xy)cd
1783 3: ab(xy)cd
1784 4: ab(xy)cd
1785 5: ab(xy)cd
1786 6: ab(xy)cd
1787 7: ab(xy)cd
1788 8: ab(xy)cd
1789 9: ab(xy)cd
1790 10: ab(xy)cd
1791 11: cd
1792
1793 /\( ( ( (?>[^()<>]+) | ((?>[^()]+)) | (?R) )* ) \) /x
1794 Capturing subpattern count = 3
1795 Options: extended
1796 First char = '('
1797 Need char = ')'
1798 (abcd(xyz<p>qrs)123)
1799 0: (abcd(xyz<p>qrs)123)
1800 1: abcd(xyz<p>qrs)123
1801 2: 123
1802 3: <unset>
1803
1804 /\( ( ( (?>[^()]+) | ((?R)) )* ) \) /x
1805 Capturing subpattern count = 3
1806 Options: extended
1807 First char = '('
1808 Need char = ')'
1809 (ab(cd)ef)
1810 0: (ab(cd)ef)
1811 1: ab(cd)ef
1812 2: ef
1813 3: (cd)
1814 (ab(cd(ef)gh)ij)
1815 0: (ab(cd(ef)gh)ij)
1816 1: ab(cd(ef)gh)ij
1817 2: ij
1818 3: (cd(ef)gh)
1819
1820 /^[[:alnum:]]/D
1821 ------------------------------------------------------------------
1822 0 37 Bra 0
1823 3 ^
1824 4 [0-9A-Za-z]
1825 37 37 Ket
1826 40 End
1827 ------------------------------------------------------------------
1828 Capturing subpattern count = 0
1829 Options: anchored
1830 No first char
1831 No need char
1832
1833 /^[[:alpha:]]/D
1834 ------------------------------------------------------------------
1835 0 37 Bra 0
1836 3 ^
1837 4 [A-Za-z]
1838 37 37 Ket
1839 40 End
1840 ------------------------------------------------------------------
1841 Capturing subpattern count = 0
1842 Options: anchored
1843 No first char
1844 No need char
1845
1846 /^[[:ascii:]]/D
1847 ------------------------------------------------------------------
1848 0 37 Bra 0
1849 3 ^
1850 4 [\x00-\x7f]
1851 37 37 Ket
1852 40 End
1853 ------------------------------------------------------------------
1854 Capturing subpattern count = 0
1855 Options: anchored
1856 No first char
1857 No need char
1858
1859 /^[[:blank:]]/D
1860 ------------------------------------------------------------------
1861 0 37 Bra 0
1862 3 ^
1863 4 [\x09 ]
1864 37 37 Ket
1865 40 End
1866 ------------------------------------------------------------------
1867 Capturing subpattern count = 0
1868 Options: anchored
1869 No first char
1870 No need char
1871
1872 /^[[:cntrl:]]/D
1873 ------------------------------------------------------------------
1874 0 37 Bra 0
1875 3 ^
1876 4 [\x00-\x1f\x7f]
1877 37 37 Ket
1878 40 End
1879 ------------------------------------------------------------------
1880 Capturing subpattern count = 0
1881 Options: anchored
1882 No first char
1883 No need char
1884
1885 /^[[:digit:]]/D
1886 ------------------------------------------------------------------
1887 0 37 Bra 0
1888 3 ^
1889 4 [0-9]
1890 37 37 Ket
1891 40 End
1892 ------------------------------------------------------------------
1893 Capturing subpattern count = 0
1894 Options: anchored
1895 No first char
1896 No need char
1897
1898 /^[[:graph:]]/D
1899 ------------------------------------------------------------------
1900 0 37 Bra 0
1901 3 ^
1902 4 [!-~]
1903 37 37 Ket
1904 40 End
1905 ------------------------------------------------------------------
1906 Capturing subpattern count = 0
1907 Options: anchored
1908 No first char
1909 No need char
1910
1911 /^[[:lower:]]/D
1912 ------------------------------------------------------------------
1913 0 37 Bra 0
1914 3 ^
1915 4 [a-z]
1916 37 37 Ket
1917 40 End
1918 ------------------------------------------------------------------
1919 Capturing subpattern count = 0
1920 Options: anchored
1921 No first char
1922 No need char
1923
1924 /^[[:print:]]/D
1925 ------------------------------------------------------------------
1926 0 37 Bra 0
1927 3 ^
1928 4 [ -~]
1929 37 37 Ket
1930 40 End
1931 ------------------------------------------------------------------
1932 Capturing subpattern count = 0
1933 Options: anchored
1934 No first char
1935 No need char
1936
1937 /^[[:punct:]]/D
1938 ------------------------------------------------------------------
1939 0 37 Bra 0
1940 3 ^
1941 4 [!-/:-@[-`{-~]
1942 37 37 Ket
1943 40 End
1944 ------------------------------------------------------------------
1945 Capturing subpattern count = 0
1946 Options: anchored
1947 No first char
1948 No need char
1949
1950 /^[[:space:]]/D
1951 ------------------------------------------------------------------
1952 0 37 Bra 0
1953 3 ^
1954 4 [\x09-\x0d ]
1955 37 37 Ket
1956 40 End
1957 ------------------------------------------------------------------
1958 Capturing subpattern count = 0
1959 Options: anchored
1960 No first char
1961 No need char
1962
1963 /^[[:upper:]]/D
1964 ------------------------------------------------------------------
1965 0 37 Bra 0
1966 3 ^
1967 4 [A-Z]
1968 37 37 Ket
1969 40 End
1970 ------------------------------------------------------------------
1971 Capturing subpattern count = 0
1972 Options: anchored
1973 No first char
1974 No need char
1975
1976 /^[[:xdigit:]]/D
1977 ------------------------------------------------------------------
1978 0 37 Bra 0
1979 3 ^
1980 4 [0-9A-Fa-f]
1981 37 37 Ket
1982 40 End
1983 ------------------------------------------------------------------
1984 Capturing subpattern count = 0
1985 Options: anchored
1986 No first char
1987 No need char
1988
1989 /^[[:word:]]/D
1990 ------------------------------------------------------------------
1991 0 37 Bra 0
1992 3 ^
1993 4 [0-9A-Z_a-z]
1994 37 37 Ket
1995 40 End
1996 ------------------------------------------------------------------
1997 Capturing subpattern count = 0
1998 Options: anchored
1999 No first char
2000 No need char
2001
2002 /^[[:^cntrl:]]/D
2003 ------------------------------------------------------------------
2004 0 37 Bra 0
2005 3 ^
2006 4 [ -~\x80-\xff]
2007 37 37 Ket
2008 40 End
2009 ------------------------------------------------------------------
2010 Capturing subpattern count = 0
2011 Options: anchored
2012 No first char
2013 No need char
2014
2015 /^[12[:^digit:]]/D
2016 ------------------------------------------------------------------
2017 0 37 Bra 0
2018 3 ^
2019 4 [\x00-/1-2:-\xff]
2020 37 37 Ket
2021 40 End
2022 ------------------------------------------------------------------
2023 Capturing subpattern count = 0
2024 Options: anchored
2025 No first char
2026 No need char
2027
2028 /^[[:^blank:]]/D
2029 ------------------------------------------------------------------
2030 0 37 Bra 0
2031 3 ^
2032 4 [\x00-\x08\x0a-\x1f!-\xff]
2033 37 37 Ket
2034 40 End
2035 ------------------------------------------------------------------
2036 Capturing subpattern count = 0
2037 Options: anchored
2038 No first char
2039 No need char
2040
2041 /[01[:alpha:]%]/D
2042 ------------------------------------------------------------------
2043 0 36 Bra 0
2044 3 [%0-1A-Za-z]
2045 36 36 Ket
2046 39 End
2047 ------------------------------------------------------------------
2048 Capturing subpattern count = 0
2049 No options
2050 No first char
2051 No need char
2052
2053 /[[.ch.]]/
2054 Failed: POSIX collating elements are not supported at offset 1
2055
2056 /[[=ch=]]/
2057 Failed: POSIX collating elements are not supported at offset 1
2058
2059 /[[:rhubarb:]]/
2060 Failed: unknown POSIX class name at offset 3
2061
2062 /[[:upper:]]/i
2063 Capturing subpattern count = 0
2064 Options: caseless
2065 No first char
2066 No need char
2067 A
2068 0: A
2069 a
2070 0: a
2071
2072 /[[:lower:]]/i
2073 Capturing subpattern count = 0
2074 Options: caseless
2075 No first char
2076 No need char
2077 A
2078 0: A
2079 a
2080 0: a
2081
2082 /((?-i)[[:lower:]])[[:lower:]]/i
2083 Capturing subpattern count = 1
2084 Options: caseless
2085 Case state changes
2086 No first char
2087 No need char
2088 ab
2089 0: ab
2090 1: a
2091 aB
2092 0: aB
2093 1: a
2094 *** Failers
2095 0: ai
2096 1: a
2097 Ab
2098 No match
2099 AB
2100 No match
2101
2102 /[\200-\410]/
2103 Failed: range out of order in character class at offset 9
2104
2105 /^(?(0)f|b)oo/
2106 Failed: invalid condition (?(0) at offset 5
2107
2108 /This one's here because of the large output vector needed/
2109 Capturing subpattern count = 0
2110 No options
2111 First char = 'T'
2112 Need char = 'd'
2113
2114 /(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\w+)\s+(\270)/
2115 Capturing subpattern count = 271
2116 Max back reference = 270
2117 No options
2118 No first char
2119 No need char
2120 \O900 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ABC ABC
2121 0: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ABC ABC
2122 1: 1
2123 2: 2
2124 3: 3
2125 4: 4
2126 5: 5
2127 6: 6
2128 7: 7
2129 8: 8
2130 9: 9
2131 10: 10
2132 11: 11
2133 12: 12
2134 13: 13
2135 14: 14
2136 15: 15
2137 16: 16
2138 17: 17
2139 18: 18
2140 19: 19
2141 20: 20
2142 21: 21
2143 22: 22
2144 23: 23
2145 24: 24
2146 25: 25
2147 26: 26
2148 27: 27
2149 28: 28
2150 29: 29
2151 30: 30
2152 31: 31
2153 32: 32
2154 33: 33
2155 34: 34
2156 35: 35
2157 36: 36
2158 37: 37
2159 38: 38
2160 39: 39
2161 40: 40
2162 41: 41
2163 42: 42
2164 43: 43
2165 44: 44
2166 45: 45
2167 46: 46
2168 47: 47
2169 48: 48
2170 49: 49
2171 50: 50
2172 51: 51
2173 52: 52
2174 53: 53
2175 54: 54
2176 55: 55
2177 56: 56
2178 57: 57
2179 58: 58
2180 59: 59
2181 60: 60
2182 61: 61
2183 62: 62
2184 63: 63
2185 64: 64
2186 65: 65
2187 66: 66
2188 67: 67
2189 68: 68
2190 69: 69
2191 70: 70
2192 71: 71
2193 72: 72
2194 73: 73
2195 74: 74
2196 75: 75
2197 76: 76
2198 77: 77
2199 78: 78
2200 79: 79
2201 80: 80
2202 81: 81
2203 82: 82
2204 83: 83
2205 84: 84
2206 85: 85
2207 86: 86
2208 87: 87
2209 88: 88
2210 89: 89
2211 90: 90
2212 91: 91
2213 92: 92
2214 93: 93
2215 94: 94
2216 95: 95
2217 96: 96
2218 97: 97
2219 98: 98
2220 99: 99
2221 100: 100
2222 101: 101
2223 102: 102
2224 103: 103
2225 104: 104
2226 105: 105
2227 106: 106
2228 107: 107
2229 108: 108
2230 109: 109
2231 110: 110
2232 111: 111
2233 112: 112
2234 113: 113
2235 114: 114
2236 115: 115
2237 116: 116
2238 117: 117
2239 118: 118
2240 119: 119
2241 120: 120
2242 121: 121
2243 122: 122
2244 123: 123
2245 124: 124
2246 125: 125
2247 126: 126
2248 127: 127
2249 128: 128
2250 129: 129
2251 130: 130
2252 131: 131
2253 132: 132
2254 133: 133
2255 134: 134
2256 135: 135
2257 136: 136
2258 137: 137
2259 138: 138
2260 139: 139
2261 140: 140
2262 141: 141
2263 142: 142
2264 143: 143
2265 144: 144
2266 145: 145
2267 146: 146
2268 147: 147
2269 148: 148
2270 149: 149
2271 150: 150
2272 151: 151
2273 152: 152
2274 153: 153
2275 154: 154
2276 155: 155
2277 156: 156
2278 157: 157
2279 158: 158
2280 159: 159
2281 160: 160
2282 161: 161
2283 162: 162
2284 163: 163
2285 164: 164
2286 165: 165
2287 166: 166
2288 167: 167
2289 168: 168
2290 169: 169
2291 170: 170
2292 171: 171
2293 172: 172
2294 173: 173
2295 174: 174
2296 175: 175
2297 176: 176
2298 177: 177
2299 178: 178
2300 179: 179
2301 180: 180
2302 181: 181
2303 182: 182
2304 183: 183
2305 184: 184
2306 185: 185
2307 186: 186
2308 187: 187
2309 188: 188
2310 189: 189
2311 190: 190
2312 191: 191
2313 192: 192
2314 193: 193
2315 194: 194
2316 195: 195
2317 196: 196
2318 197: 197
2319 198: 198
2320 199: 199
2321 200: 200
2322 201: 201
2323 202: 202
2324 203: 203
2325 204: 204
2326 205: 205
2327 206: 206
2328 207: 207
2329 208: 208
2330 209: 209
2331 210: 210
2332 211: 211
2333 212: 212
2334 213: 213
2335 214: 214
2336 215: 215
2337 216: 216
2338 217: 217
2339 218: 218
2340 219: 219
2341 220: 220
2342 221: 221
2343 222: 222
2344 223: 223
2345 224: 224
2346 225: 225
2347 226: 226
2348 227: 227
2349 228: 228
2350 229: 229
2351 230: 230
2352 231: 231
2353 232: 232
2354 233: 233
2355 234: 234
2356 235: 235
2357 236: 236
2358 237: 237
2359 238: 238
2360 239: 239
2361 240: 240
2362 241: 241
2363 242: 242
2364 243: 243
2365 244: 244
2366 245: 245
2367 246: 246
2368 247: 247
2369 248: 248
2370 249: 249
2371 250: 250
2372 251: 251
2373 252: 252
2374 253: 253
2375 254: 254
2376 255: 255
2377 256: 256
2378 257: 257
2379 258: 258
2380 259: 259
2381 260: 260
2382 261: 261
2383 262: 262
2384 263: 263
2385 264: 264
2386 265: 265
2387 266: 266
2388 267: 267
2389 268: 268
2390 269: 269
2391 270: ABC
2392 271: ABC
2393
2394 /This one's here because Perl does this differently and PCRE can't at present/
2395 Capturing subpattern count = 0
2396 No options
2397 First char = 'T'
2398 Need char = 't'
2399
2400 /(main(O)?)+/
2401 Capturing subpattern count = 2
2402 No options
2403 First char = 'm'
2404 Need char = 'n'
2405 mainmain
2406 0: mainmain
2407 1: main
2408 mainOmain
2409 0: mainOmain
2410 1: main
2411 2: O
2412
2413 /These are all cases where Perl does it differently (nested captures)/
2414 Capturing subpattern count = 1
2415 No options
2416 First char = 'T'
2417 Need char = 's'
2418
2419 /^(a(b)?)+$/
2420 Capturing subpattern count = 2
2421 Options: anchored
2422 No first char
2423 No need char
2424 aba
2425 0: aba
2426 1: a
2427 2: b
2428
2429 /^(aa(bb)?)+$/
2430 Capturing subpattern count = 2
2431 Options: anchored
2432 No first char
2433 No need char
2434 aabbaa
2435 0: aabbaa
2436 1: aa
2437 2: bb
2438
2439 /^(aa|aa(bb))+$/
2440 Capturing subpattern count = 2
2441 Options: anchored
2442 No first char
2443 No need char
2444 aabbaa
2445 0: aabbaa
2446 1: aa
2447 2: bb
2448
2449 /^(aa(bb)??)+$/
2450 Capturing subpattern count = 2
2451 Options: anchored
2452 No first char
2453 No need char
2454 aabbaa
2455 0: aabbaa
2456 1: aa
2457 2: bb
2458
2459 /^(?:aa(bb)?)+$/
2460 Capturing subpattern count = 1
2461 Options: anchored
2462 No first char
2463 No need char
2464 aabbaa
2465 0: aabbaa
2466 1: bb
2467
2468 /^(aa(b(b))?)+$/
2469 Capturing subpattern count = 3
2470 Options: anchored
2471 No first char
2472 No need char
2473 aabbaa
2474 0: aabbaa
2475 1: aa
2476 2: bb
2477 3: b
2478
2479 /^(?:aa(b(b))?)+$/
2480 Capturing subpattern count = 2
2481 Options: anchored
2482 No first char
2483 No need char
2484 aabbaa
2485 0: aabbaa
2486 1: bb
2487 2: b
2488
2489 /^(?:aa(b(?:b))?)+$/
2490 Capturing subpattern count = 1
2491 Options: anchored
2492 No first char
2493 No need char
2494 aabbaa
2495 0: aabbaa
2496 1: bb
2497
2498 /^(?:aa(bb(?:b))?)+$/
2499 Capturing subpattern count = 1
2500 Options: anchored
2501 No first char
2502 No need char
2503 aabbbaa
2504 0: aabbbaa
2505 1: bbb
2506
2507 /^(?:aa(b(?:bb))?)+$/
2508 Capturing subpattern count = 1
2509 Options: anchored
2510 No first char
2511 No need char
2512 aabbbaa
2513 0: aabbbaa
2514 1: bbb
2515
2516 /^(?:aa(?:b(b))?)+$/
2517 Capturing subpattern count = 1
2518 Options: anchored
2519 No first char
2520 No need char
2521 aabbaa
2522 0: aabbaa
2523 1: b
2524
2525 /^(?:aa(?:b(bb))?)+$/
2526 Capturing subpattern count = 1
2527 Options: anchored
2528 No first char
2529 No need char
2530 aabbbaa
2531 0: aabbbaa
2532 1: bb
2533
2534 /^(aa(b(bb))?)+$/
2535 Capturing subpattern count = 3
2536 Options: anchored
2537 No first char
2538 No need char
2539 aabbbaa
2540 0: aabbbaa
2541 1: aa
2542 2: bbb
2543 3: bb
2544
2545 /^(aa(bb(bb))?)+$/
2546 Capturing subpattern count = 3
2547 Options: anchored
2548 No first char
2549 No need char
2550 aabbbbaa
2551 0: aabbbbaa
2552 1: aa
2553 2: bbbb
2554 3: bb
2555
2556 /--------------------------------------------------------------------/
2557 Capturing subpattern count = 0
2558 No options
2559 First char = '-'
2560 Need char = '-'
2561
2562 /#/xMD
2563 Memory allocation (code space): 7
2564 ------------------------------------------------------------------
2565 0 3 Bra 0
2566 3 3 Ket
2567 6 End
2568 ------------------------------------------------------------------
2569 Capturing subpattern count = 0
2570 Options: extended
2571 No first char
2572 No need char
2573
2574 /a#/xMD
2575 Memory allocation (code space): 13
2576 ------------------------------------------------------------------
2577 0 6 Bra 0
2578 3 1 a
2579 6 6 Ket
2580 9 End
2581 ------------------------------------------------------------------
2582 Capturing subpattern count = 0
2583 Options: extended
2584 First char = 'a'
2585 No need char
2586
2587 /[\s]/D
2588 ------------------------------------------------------------------
2589 0 36 Bra 0
2590 3 [\x09-\x0a\x0c-\x0d ]
2591 36 36 Ket
2592 39 End
2593 ------------------------------------------------------------------
2594 Capturing subpattern count = 0
2595 No options
2596 No first char
2597 No need char
2598
2599 /[\S]/D
2600 ------------------------------------------------------------------
2601 0 36 Bra 0
2602 3 [\x00-\x08\x0b\x0e-\x1f!-\xff]
2603 36 36 Ket
2604 39 End
2605 ------------------------------------------------------------------
2606 Capturing subpattern count = 0
2607 No options
2608 No first char
2609 No need char
2610
2611 /a(?i)b/D
2612 ------------------------------------------------------------------
2613 0 11 Bra 0
2614 3 1 a
2615 6 01 Opt
2616 8 1 b
2617 11 11 Ket
2618 14 End
2619 ------------------------------------------------------------------
2620 Capturing subpattern count = 0
2621 No options
2622 Case state changes
2623 First char = 'a'
2624 Need char = 'b' (caseless)
2625 ab
2626 0: ab
2627 aB
2628 0: aB
2629 *** Failers
2630 No match
2631 AB
2632 No match
2633
2634 /(a(?i)b)/D
2635 ------------------------------------------------------------------
2636 0 19 Bra 0
2637 3 11 Bra 1
2638 6 1 a
2639 9 01 Opt
2640 11 1 b
2641 14 11 Ket
2642 17 00 Opt
2643 19 19 Ket
2644 22 End
2645 ------------------------------------------------------------------
2646 Capturing subpattern count = 1
2647 No options
2648 Case state changes
2649 First char = 'a'
2650 Need char = 'b' (caseless)
2651 ab
2652 0: ab
2653 1: ab
2654 aB
2655 0: aB
2656 1: aB
2657 *** Failers
2658 No match
2659 AB
2660 No match
2661
2662 / (?i)abc/xD
2663 ------------------------------------------------------------------
2664 0 8 Bra 0
2665 3 3 abc
2666 8 8 Ket
2667 11 End
2668 ------------------------------------------------------------------
2669 Capturing subpattern count = 0
2670 Options: caseless extended
2671 First char = 'a' (caseless)
2672 Need char = 'c' (caseless)
2673
2674 /#this is a comment
2675 (?i)abc/xD
2676 ------------------------------------------------------------------
2677 0 8 Bra 0
2678 3 3 abc
2679 8 8 Ket
2680 11 End
2681 ------------------------------------------------------------------
2682 Capturing subpattern count = 0
2683 Options: caseless extended
2684 First char = 'a' (caseless)
2685 Need char = 'c' (caseless)
2686
2687 /123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/D
2688 ------------------------------------------------------------------
2689 0 307 Bra 0
2690 3 250 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
2691 255 50 12345678901234567890123456789012345678901234567890
2692 307 307 Ket
2693 310 End
2694 ------------------------------------------------------------------
2695 Capturing subpattern count = 0
2696 No options
2697 First char = '1'
2698 Need char = '0'
2699
2700 /\Q123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/D
2701 ------------------------------------------------------------------
2702 0 307 Bra 0
2703 3 250 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
2704 255 50 12345678901234567890123456789012345678901234567890
2705 307 307 Ket
2706 310 End
2707 ------------------------------------------------------------------
2708 Capturing subpattern count = 0
2709 No options
2710 First char = '1'
2711 Need char = '0'
2712
2713 /\Q\E/D
2714 ------------------------------------------------------------------
2715 0 3 Bra 0
2716 3 3 Ket
2717 6 End
2718 ------------------------------------------------------------------
2719 Capturing subpattern count = 0
2720 No options
2721 No first char
2722 No need char
2723 \
2724 0:
2725
2726 /\Q\Ex/D
2727 ------------------------------------------------------------------
2728 0 6 Bra 0
2729 3 1 x
2730 6 6 Ket
2731 9 End
2732 ------------------------------------------------------------------
2733 Capturing subpattern count = 0
2734 No options
2735 First char = 'x'
2736 No need char
2737
2738 / \Q\E/D
2739 ------------------------------------------------------------------
2740 0 6 Bra 0
2741 3 1
2742 6 6 Ket
2743 9 End
2744 ------------------------------------------------------------------
2745 Capturing subpattern count = 0
2746 No options
2747 First char = ' '
2748 No need char
2749
2750 /a\Q\E/D
2751 ------------------------------------------------------------------
2752 0 6 Bra 0
2753 3 1 a
2754 6 6 Ket
2755 9 End
2756 ------------------------------------------------------------------
2757 Capturing subpattern count = 0
2758 No options
2759 First char = 'a'
2760 No need char
2761 abc
2762 0: a
2763 bca
2764 0: a
2765 bac
2766 0: a
2767
2768 /a\Q\Eb/D
2769 ------------------------------------------------------------------
2770 0 9 Bra 0
2771 3 1 a
2772 6 1 b
2773 9 9 Ket
2774 12 End
2775 ------------------------------------------------------------------
2776 Capturing subpattern count = 0
2777 No options
2778 First char = 'a'
2779 Need char = 'b'
2780 abc
2781 0: ab
2782
2783 /\Q\Eabc/D
2784 ------------------------------------------------------------------
2785 0 8 Bra 0
2786 3 3 abc
2787 8 8 Ket
2788 11 End
2789 ------------------------------------------------------------------
2790 Capturing subpattern count = 0
2791 No options
2792 First char = 'a'
2793 Need char = 'c'
2794
2795 /x*+\w/D
2796 ------------------------------------------------------------------
2797 0 12 Bra 0
2798 3 5 Once
2799 6 x*
2800 8 5 Ket
2801 11 \w
2802 12 12 Ket
2803 15 End
2804 ------------------------------------------------------------------
2805 Capturing subpattern count = 0
2806 No options
2807 No first char
2808 No need char
2809 *** Failers
2810 0: F
2811 xxxxx
2812 No match
2813
2814 /x?+/D
2815 ------------------------------------------------------------------
2816 0 11 Bra 0
2817 3 5 Once
2818 6 x?
2819 8 5 Ket
2820 11 11 Ket
2821 14 End
2822 ------------------------------------------------------------------
2823 Capturing subpattern count = 0
2824 No options
2825 No first char
2826 No need char
2827
2828 /x++/D
2829 ------------------------------------------------------------------
2830 0 11 Bra 0
2831 3 5 Once
2832 6 x+
2833 8 5 Ket
2834 11 11 Ket
2835 14 End
2836 ------------------------------------------------------------------
2837 Capturing subpattern count = 0
2838 No options
2839 First char = 'x'
2840 No need char
2841
2842 /x{1,3}+/D
2843 ------------------------------------------------------------------
2844 0 16 Bra 0
2845 3 10 Once
2846 6 1 x
2847 9 x{,2}
2848 13 10 Ket
2849 16 16 Ket
2850 19 End
2851 ------------------------------------------------------------------
2852 Capturing subpattern count = 0
2853 No options
2854 First char = 'x'
2855 No need char
2856
2857 /(x)*+/D
2858 ------------------------------------------------------------------
2859 0 19 Bra 0
2860 3 13 Once
2861 6 Brazero
2862 7 6 Bra 1
2863 10 1 x
2864 13 6 KetRmax
2865 16 13 Ket
2866 19 19 Ket
2867 22 End
2868 ------------------------------------------------------------------
2869 Capturing subpattern count = 1
2870 No options
2871 No first char
2872 No need char
2873
2874 /^(\w++|\s++)*$/
2875 Capturing subpattern count = 1
2876 Options: anchored
2877 No first char
2878 No need char
2879 now is the time for all good men to come to the aid of the party
2880 0: now is the time for all good men to come to the aid of the party
2881 1: party
2882 *** Failers
2883 No match
2884 this is not a line with only words and spaces!
2885 No match
2886
2887 /(\d++)(\w)/
2888 Capturing subpattern count = 2
2889 No options
2890 No first char
2891 No need char
2892 12345a
2893 0: 12345a
2894 1: 12345
2895 2: a
2896 *** Failers
2897 No match
2898 12345+
2899 No match
2900
2901 /a++b/
2902 Capturing subpattern count = 0
2903 No options
2904 First char = 'a'
2905 Need char = 'b'
2906 aaab
2907 0: aaab
2908
2909 /(a++b)/
2910 Capturing subpattern count = 1
2911 No options
2912 First char = 'a'
2913 Need char = 'b'
2914 aaab
2915 0: aaab
2916 1: aaab
2917
2918 /(a++)b/
2919 Capturing subpattern count = 1
2920 No options
2921 First char = 'a'
2922 Need char = 'b'
2923 aaab
2924 0: aaab
2925 1: aaa
2926
2927 /([^()]++|\([^()]*\))+/
2928 Capturing subpattern count = 1
2929 No options
2930 No first char
2931 No need char
2932 ((abc(ade)ufh()()x
2933 0: abc(ade)ufh()()x
2934 1: x
2935
2936 /\(([^()]++|\([^()]+\))+\)/
2937 Capturing subpattern count = 1
2938 No options
2939 First char = '('
2940 Need char = ')'
2941 (abc)
2942 0: (abc)
2943 1: abc
2944 (abc(def)xyz)
2945 0: (abc(def)xyz)
2946 1: xyz
2947 *** Failers
2948 No match
2949 ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2950 No match
2951
2952 /(abc){1,3}+/D
2953 ------------------------------------------------------------------
2954 0 50 Bra 0
2955 3 44 Once
2956 6 8 Bra 1
2957 9 3 abc
2958 14 8 Ket
2959 17 Brazero
2960 18 26 Bra 0
2961 21 8 Bra 1
2962 24 3 abc
2963 29 8 Ket
2964 32 Brazero
2965 33 8 Bra 1
2966 36 3 abc
2967 41 8 Ket
2968 44 26 Ket
2969 47 44 Ket
2970 50 50 Ket
2971 53 End
2972 ------------------------------------------------------------------
2973 Capturing subpattern count = 1
2974 No options
2975 First char = 'a'
2976 Need char = 'c'
2977
2978 /a+?+/
2979 Failed: nothing to repeat at offset 3
2980
2981 /a{2,3}?+b/
2982 Failed: nothing to repeat at offset 7
2983
2984 /(?U)a+?+/
2985 Failed: nothing to repeat at offset 7
2986
2987 /a{2,3}?+b/U
2988 Failed: nothing to repeat at offset 7
2989
2990 /x(?U)a++b/D
2991 ------------------------------------------------------------------
2992 0 17 Bra 0
2993 3 1 x
2994 6 5 Once
2995 9 a+
2996 11 5 Ket
2997 14 1 b
2998 17 17 Ket
2999 20 End
3000 ------------------------------------------------------------------
3001 Capturing subpattern count = 0
3002 No options
3003 First char = 'x'
3004 Need char = 'b'
3005 xaaaab
3006 0: xaaaab
3007
3008 /(?U)xa++b/D
3009 ------------------------------------------------------------------
3010 0 17 Bra 0
3011 3 1 x
3012 6 5 Once
3013 9 a+
3014 11 5 Ket
3015 14 1 b
3016 17 17 Ket
3017 20 End
3018 ------------------------------------------------------------------
3019 Capturing subpattern count = 0
3020 Options: ungreedy
3021 First char = 'x'
3022 Need char = 'b'
3023 xaaaab
3024 0: xaaaab
3025
3026 /^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/D
3027 ------------------------------------------------------------------
3028 0 106 Bra 0
3029 3 ^
3030 4 99 Bra 1
3031 7 5 Bra 2
3032 10 a+
3033 12 5 Ket
3034 15 37 Bra 3
3035 18 [a-b]+?
3036 52 37 Ket
3037 55 37 Bra 4
3038 58 [b-c]+
3039 92 37 Ket
3040 95 5 Bra 5
3041 98 \w*
3042 100 5 Ket
3043 103 99 Ket
3044 106 106 Ket
3045 109 End
3046 ------------------------------------------------------------------
3047 Capturing subpattern count = 5
3048 Options: anchored
3049 No first char
3050 No need char
3051
3052 /^x(?U)a+b/D
3053 ------------------------------------------------------------------
3054 0 12 Bra 0
3055 3 ^
3056 4 1 x
3057 7 a+?
3058 9 1 b
3059 12 12 Ket
3060 15 End
3061 ------------------------------------------------------------------
3062 Capturing subpattern count = 0
3063 Options: anchored
3064 No first char
3065 Need char = 'b'
3066
3067 /^x(?U)(a+)b/D
3068 ------------------------------------------------------------------
3069 0 18 Bra 0
3070 3 ^
3071 4 1 x
3072 7 5 Bra 1
3073 10 a+?
3074 12 5 Ket
3075 15 1 b
3076 18 18 Ket
3077 21 End
3078 ------------------------------------------------------------------
3079 Capturing subpattern count = 1
3080 Options: anchored
3081 No first char
3082 Need char = 'b'
3083
3084 /[.x.]/
3085 Failed: POSIX collating elements are not supported at offset 0
3086
3087 /[=x=]/
3088 Failed: POSIX collating elements are not supported at offset 0
3089
3090 /[:x:]/
3091 Failed: POSIX named classes are supported only within a class at offset 0
3092
3093 /\l/
3094 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3095
3096 /\L/
3097 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3098
3099 /\N{name}/
3100 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3101
3102 /\pP/
3103 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3104
3105 /\PP/
3106 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3107
3108 /\p{prop}/
3109 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3110
3111 /\P{prop}/
3112 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3113
3114 /\u/
3115 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3116
3117 /\U/
3118 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3119
3120 /\X/
3121 Failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 1
3122
3123 /[/
3124 Failed: missing terminating ] for character class at offset 1
3125
3126 /[a-/
3127 Failed: missing terminating ] for character class at offset 3
3128
3129 /[[:space:]/
3130 Failed: missing terminating ] for character class at offset 10
3131
3132 /[\s]/DM
3133 Memory allocation (code space): 40
3134 ------------------------------------------------------------------
3135 0 36 Bra 0
3136 3 [\x09-\x0a\x0c-\x0d ]
3137 36 36 Ket
3138 39 End
3139 ------------------------------------------------------------------
3140 Capturing subpattern count = 0
3141 No options
3142 No first char
3143 No need char
3144
3145 /[[:space:]]/DM
3146 Memory allocation (code space): 40
3147 ------------------------------------------------------------------
3148 0 36 Bra 0
3149 3 [\x09-\x0d ]
3150 36 36 Ket
3151 39 End
3152 ------------------------------------------------------------------
3153 Capturing subpattern count = 0
3154 No options
3155 No first char
3156 No need char
3157
3158 /[[:space:]abcde]/DM
3159 Memory allocation (code space): 40
3160 ------------------------------------------------------------------
3161 0 36 Bra 0
3162 3 [\x09-\x0d a-e]
3163 36 36 Ket
3164 39 End
3165 ------------------------------------------------------------------
3166 Capturing subpattern count = 0
3167 No options
3168 No first char
3169 No need char
3170
3171 /< (?: (?(R) \d++ | [^<>]*+) | (?R)) * >/x
3172 Capturing subpattern count = 0
3173 Options: extended
3174 First char = '<'
3175 Need char = '>'
3176 <>
3177 0: <>
3178 <abcd>
3179 0: <abcd>
3180 <abc <123> hij>
3181 0: <abc <123> hij>
3182 <abc <def> hij>
3183 0: <def>
3184 <abc<>def>
3185 0: <abc<>def>
3186 <abc<>
3187 0: <>
3188 *** Failers
3189 No match
3190 <abc
3191 No match
3192
3193 |8J\$WE\<\.rX\+ix\[d1b\!H\#\?vV0vrK\:ZH1\=2M\>iV\;\?aPhFB\<\*vW\@QW\@sO9\}cfZA\-i\'w\%hKd6gt1UJP\,15_\#QY\$M\^Mss_U\/\]\&LK9\[5vQub\^w\[KDD\<EjmhUZ\?\.akp2dF\>qmj\;2\}YWFdYx\.Ap\]hjCPTP\(n28k\+3\;o\&WXqs\/gOXdr\$\:r\'do0\;b4c\(f_Gr\=\"\\4\)\[01T7ajQJvL\$W\~mL_sS\/4h\:x\*\[ZN\=KLs\&L5zX\/\/\>it\,o\:aU\(\;Z\>pW\&T7oP\'2K\^E\:x9\'c\[\%z\-\,64JQ5AeH_G\#KijUKghQw\^\\vea3a\?kka_G\$8\#\`\*kynsxzBLru\'\]k_\[7FrVx\}\^\=\$blx\>s\-N\%j\;D\*aZDnsw\:YKZ\%Q\.Kne9\#hP\?\+b3\(SOvL\,\^\;\&u5\@\?5C5Bhb\=m\-vEh_L15Jl\]U\)0RP6\{q\%L\^_z5E\'Dw6X\b|DM
3194 Memory allocation (code space): 421
3195 ------------------------------------------------------------------
3196 0 417 Bra 0
3197 3 250 8J$WE<.rX+ix[d1b!H#?vV0vrK:ZH1=2M>iV;?aPhFB<*vW@QW@sO9}cfZA-i'w%hKd6gt1UJP,15_#QY$M^Mss_U/]&LK9[5vQub^w[KDD<EjmhUZ?.akp2dF>qmj;2}YWFdYx.Ap]hjCPTP(n28k+3;o&WXqs/gOXdr$:r'do0;b4c(f_Gr="\4)[01T7ajQJvL$W~mL_sS/4h:x*[ZN=KLs&L5zX//>it,o:aU(;Z>pW&T7oP'2K^E:
3198 255 159 x9'c[%z-,64JQ5AeH_G#KijUKghQw^\vea3a?kka_G$8#`*kynsxzBLru']k_[7FrVx}^=$blx>s-N%j;D*aZDnsw:YKZ%Q.Kne9#hP?+b3(SOvL,^;&u5@?5C5Bhb=m-vEh_L15Jl]U)0RP6{q%L^_z5E'Dw6X
3199 416 \b
3200 417 417 Ket
3201 420 End
3202 ------------------------------------------------------------------
3203 Capturing subpattern count = 0
3204 No options
3205 First char = '8'
3206 Need char = 'X'
3207
3208 |\$\<\.X\+ix\[d1b\!H\#\?vV0vrK\:ZH1\=2M\>iV\;\?aPhFB\<\*vW\@QW\@sO9\}cfZA\-i\'w\%hKd6gt1UJP\,15_\#QY\$M\^Mss_U\/\]\&LK9\[5vQub\^w\[KDD\<EjmhUZ\?\.akp2dF\>qmj\;2\}YWFdYx\.Ap\]hjCPTP\(n28k\+3\;o\&WXqs\/gOXdr\$\:r\'do0\;b4c\(f_Gr\=\"\\4\)\[01T7ajQJvL\$W\~mL_sS\/4h\:x\*\[ZN\=KLs\&L5zX\/\/\>it\,o\:aU\(\;Z\>pW\&T7oP\'2K\^E\:x9\'c\[\%z\-\,64JQ5AeH_G\#KijUKghQw\^\\vea3a\?kka_G\$8\#\`\*kynsxzBLru\'\]k_\[7FrVx\}\^\=\$blx\>s\-N\%j\;D\*aZDnsw\:YKZ\%Q\.Kne9\#hP\?\+b3\(SOvL\,\^\;\&u5\@\?5C5Bhb\=m\-vEh_L15Jl\]U\)0RP6\{q\%L\^_z5E\'Dw6X\b|DM
3209 Memory allocation (code space): 416
3210 ------------------------------------------------------------------
3211 0 412 Bra 0
3212 3 250 $<.X+ix[d1b!H#?vV0vrK:ZH1=2M>iV;?aPhFB<*vW@QW@sO9}cfZA-i'w%hKd6gt1UJP,15_#QY$M^Mss_U/]&LK9[5vQub^w[KDD<EjmhUZ?.akp2dF>qmj;2}YWFdYx.Ap]hjCPTP(n28k+3;o&WXqs/gOXdr$:r'do0;b4c(f_Gr="\4)[01T7ajQJvL$W~mL_sS/4h:x*[ZN=KLs&L5zX//>it,o:aU(;Z>pW&T7oP'2K^E:x9'c[
3213 255 154 %z-,64JQ5AeH_G#KijUKghQw^\vea3a?kka_G$8#`*kynsxzBLru']k_[7FrVx}^=$blx>s-N%j;D*aZDnsw:YKZ%Q.Kne9#hP?+b3(SOvL,^;&u5@?5C5Bhb=m-vEh_L15Jl]U)0RP6{q%L^_z5E'Dw6X
3214 411 \b
3215 412 412 Ket
3216 415 End
3217 ------------------------------------------------------------------
3218 Capturing subpattern count = 0
3219 No options
3220 First char = '$'
3221 Need char = 'X'
3222
3223 /(.*)\d+\1/I
3224 Capturing subpattern count = 1
3225 Max back reference = 1
3226 No options
3227 No first char
3228 No need char
3229
3230 /(.*)\d+/I
3231 Capturing subpattern count = 1
3232 No options
3233 First char at start or follows \n
3234 No need char
3235
3236 /(.*)\d+\1/Is
3237 Capturing subpattern count = 1
3238 Max back reference = 1
3239 Options: dotall
3240 No first char
3241 No need char
3242
3243 /(.*)\d+/Is
3244 Capturing subpattern count = 1
3245 Options: anchored dotall
3246 No first char
3247 No need char
3248
3249 /(.*(xyz))\d+\2/I
3250 Capturing subpattern count = 2
3251 Max back reference = 2
3252 No options
3253 First char at start or follows \n
3254 Need char = 'z'
3255
3256 /((.*))\d+\1/I
3257 Capturing subpattern count = 2
3258 Max back reference = 1
3259 No options
3260 No first char
3261 No need char
3262 abc123bc
3263 0: bc123bc
3264 1: bc
3265 2: bc
3266
3267 /a[b]/I
3268 Capturing subpattern count = 0
3269 No options
3270 First char = 'a'
3271 Need char = 'b'
3272
3273 /(?=a).*/I
3274 Capturing subpattern count = 0
3275 No options
3276 First char = 'a'
3277 No need char
3278
3279 /(?=abc).xyz/iI
3280 Capturing subpattern count = 0
3281 Options: caseless
3282 First char = 'a' (caseless)
3283 Need char = 'z' (caseless)
3284
3285 /(?=abc)(?i).xyz/I
3286 Capturing subpattern count = 0
3287 No options
3288 Case state changes
3289 First char = 'a'
3290 Need char = 'z' (caseless)
3291
3292 /(?=a)(?=b)/I
3293 Capturing subpattern count = 0
3294 No options
3295 First char = 'a'
3296 No need char
3297
3298 /(?=.)a/I
3299 Capturing subpattern count = 0
3300 No options
3301 First char = 'a'
3302 No need char
3303
3304 /((?=abcda)a)/I
3305 Capturing subpattern count = 1
3306 No options
3307 First char = 'a'
3308 Need char = 'a'
3309
3310 /((?=abcda)ab)/I
3311 Capturing subpattern count = 1
3312 No options
3313 First char = 'a'
3314 Need char = 'b'
3315
3316 /()a/I
3317 Capturing subpattern count = 1
3318 No options
3319 No first char
3320 Need char = 'a'
3321
3322 /(?(1)ab|ac)/I
3323 Capturing subpattern count = 0
3324 No options
3325 First char = 'a'
3326 No need char
3327
3328 /(?(1)abz|acz)/I
3329 Capturing subpattern count = 0
3330 No options
3331 First char = 'a'
3332 Need char = 'z'
3333
3334 /(?(1)abz)/I
3335 Capturing subpattern count = 0
3336 No options
3337 No first char
3338 No need char
3339
3340 /(?(1)abz)123/I
3341 Capturing subpattern count = 0
3342 No options
3343 No first char
3344 Need char = '3'
3345
3346 /(a)+/I
3347 Capturing subpattern count = 1
3348 No options
3349 First char = 'a'
3350 No need char
3351
3352 /(a){2,3}/I
3353 Capturing subpattern count = 1
3354 No options
3355 First char = 'a'
3356 Need char = 'a'
3357
3358 /(a)*/I
3359 Capturing subpattern count = 1
3360 No options
3361 No first char
3362 No need char
3363
3364 /[a]/I
3365 Capturing subpattern count = 0
3366 No options
3367 First char = 'a'
3368 No need char
3369
3370 /[ab]/I
3371 Capturing subpattern count = 0
3372 No options
3373 No first char
3374 No need char
3375
3376 /[ab]/IS
3377 Capturing subpattern count = 0
3378 No options
3379 No first char
3380 No need char
3381 Study size = 40
3382 Starting character set: a b
3383
3384 /[^a]/I
3385 Capturing subpattern count = 0
3386 No options
3387 No first char
3388 No need char
3389
3390 /\d456/I
3391 Capturing subpattern count = 0
3392 No options
3393 No first char
3394 Need char = '6'
3395
3396 /\d456/IS
3397 Capturing subpattern count = 0
3398 No options
3399 No first char
3400 Need char = '6'
3401 Study size = 40
3402 Starting character set: 0 1 2 3 4 5 6 7 8 9
3403
3404 /a^b/I
3405 Capturing subpattern count = 0
3406 No options
3407 First char = 'a'
3408 Need char = 'b'
3409
3410 /^a/mI
3411 Capturing subpattern count = 0
3412 Options: multiline
3413 First char at start or follows \n
3414 Need char = 'a'
3415 abcde
3416 0: a
3417 xy\nabc
3418 0: a
3419 *** Failers
3420 No match
3421 xyabc
3422 No match
3423
3424 /c|abc/I
3425 Capturing subpattern count = 0
3426 No options
3427 No first char
3428 Need char = 'c'
3429
3430 /(?i)[ab]/IS
3431 Capturing subpattern count = 0
3432 Options: caseless
3433 No first char
3434 No need char
3435 Study size = 40
3436 Starting character set: A B a b
3437
3438 /[ab](?i)cd/IS
3439 Capturing subpattern count = 0
3440 No options
3441 Case state changes
3442 No first char
3443 Need char = 'd' (caseless)
3444 Study size = 40
3445 Starting character set: a b
3446
3447 /abc(?C)def/
3448 Capturing subpattern count = 0
3449 No options
3450 First char = 'a'
3451 Need char = 'f'
3452 abcdef
3453 --->abcdef
3454 0 ^ ^
3455 0: abcdef
3456 1234abcdef
3457 --->1234abcdef
3458 0 ^ ^
3459 0: abcdef
3460 *** Failers
3461 No match
3462 abcxyz
3463 No match
3464 abcxyzf
3465 --->abcxyzf
3466 0 ^ ^
3467 No match
3468
3469 /abc(?C)de(?C1)f/
3470 Capturing subpattern count = 0
3471 No options
3472 First char = 'a'
3473 Need char = 'f'
3474 123abcdef
3475 --->123abcdef
3476 0 ^ ^
3477 1 ^ ^
3478 0: abcdef
3479
3480 /(?C1)\dabc(?C2)def/
3481 Capturing subpattern count = 0
3482 No options
3483 No first char
3484 Need char = 'f'
3485 1234abcdef
3486 --->1234abcdef
3487 1 ^
3488 1 ^
3489 1 ^
3490 1 ^
3491 2 ^ ^
3492 0: 4abcdef
3493 *** Failers
3494 No match
3495 abcdef
3496 --->abcdef
3497 1 ^
3498 1 ^
3499 1 ^
3500 1 ^
3501 1 ^
3502 1 ^
3503 No match
3504
3505 /(?C255)ab/
3506 Capturing subpattern count = 0
3507 No options
3508 First char = 'a'
3509 Need char = 'b'
3510
3511 /(?C256)ab/
3512 Failed: number after (?C is > 255 at offset 6
3513
3514 /(?Cab)xx/
3515 Failed: closing ) for (?C expected at offset 3
3516
3517 /(?C12vr)x/
3518 Failed: closing ) for (?C expected at offset 5
3519
3520 /abc(?C)def/
3521 Capturing subpattern count = 0
3522 No options
3523 First char = 'a'
3524 Need char = 'f'
3525 *** Failers
3526 No match
3527 \x83\x0\x61bcdef
3528 --->\x83\x00abcdef
3529 0 ^ ^
3530 0: abcdef
3531
3532 /(abc)(?C)de(?C1)f/
3533 Capturing subpattern count = 1
3534 No options
3535 First char = 'a'
3536 Need char = 'f'
3537 123abcdef
3538 --->123abcdef
3539 0 ^ ^
3540 1 ^ ^
3541 0: abcdef
3542 1: abc
3543 123abcdef\C+
3544 Callout 0: last capture = 1
3545 0: <unset>
3546 1: abc
3547 --->123abcdef
3548 ^ ^
3549 Callout 1: last capture = 1
3550 0: <unset>
3551 1: abc
3552 --->123abcdef
3553 ^ ^
3554 0: abcdef
3555 1: abc
3556 123abcdef\C-
3557 0: abcdef
3558 1: abc
3559 *** Failers
3560 No match
3561 123abcdef\C!1
3562 --->123abcdef
3563 0 ^ ^
3564 1 ^ ^
3565 No match
3566
3567 /(?C0)(abc(?C1))*/
3568 Capturing subpattern count = 1
3569 No options
3570 No first char
3571 No need char
3572 abcabcabc
3573 --->abcabcabc
3574 0 ^
3575 1 ^ ^
3576 1 ^ ^
3577 1 ^ ^
3578 0: abcabcabc
3579 1: abc
3580 abcabc\C!1!3
3581 --->abcabc
3582 0 ^
3583 1 ^ ^
3584 1 ^ ^
3585 0: abcabc
3586 1: abc
3587 *** Failers
3588 --->*** Failers
3589 0 ^
3590 0:
3591 abcabcabc\C!1!3
3592 --->abcabcabc
3593 0 ^
3594 1 ^ ^
3595 1 ^ ^
3596 1 ^ ^
3597 0: abcabc
3598 1: abc
3599
3600 /(\d{3}(?C))*/
3601 Capturing subpattern count = 1
3602 No options
3603 No first char
3604 No need char
3605 123\C+
3606 Callout 0: last capture = -1
3607 0: <unset>
3608 --->123
3609 ^ ^
3610 0: 123
3611 1: 123
3612 123456\C+
3613 Callout 0: last capture = -1
3614 0: <unset>
3615 --->123456
3616 ^ ^
3617 Callout 0: last capture = 1
3618 0: <unset>
3619 1: 123
3620 --->123456
3621 ^ ^
3622 0: 123456
3623 1: 456
3624 123456789\C+
3625 Callout 0: last capture = -1
3626 0: <unset>
3627 --->123456789
3628 ^ ^
3629 Callout 0: last capture = 1
3630 0: <unset>
3631 1: 123
3632 --->123456789
3633 ^ ^
3634 Callout 0: last capture = 1
3635 0: <unset>
3636 1: 456
3637 --->123456789
3638 ^ ^
3639 0: 123456789
3640 1: 789
3641
3642 /((xyz)(?C)p|(?C1)xyzabc)/
3643 Capturing subpattern count = 2
3644 No options
3645 First char = 'x'
3646 No need char
3647 xyzabc\C+
3648 Callout 0: last capture = 2
3649 0: <unset>
3650 1: <unset>
3651 2: xyz
3652 --->xyzabc
3653 ^ ^
3654 Callout 1: last capture = -1
3655 0: <unset>
3656 --->xyzabc
3657 ^
3658 0: xyzabc
3659 1: xyzabc
3660
3661 /(X)((xyz)(?C)p|(?C1)xyzabc)/
3662 Capturing subpattern count = 3
3663 No options
3664 First char = 'X'
3665 Need char = 'x'
3666 Xxyzabc\C+
3667 Callout 0: last capture = 3
3668 0: <unset>
3669 1: X
3670 2: <unset>
3671 3: xyz
3672 --->Xxyzabc
3673 ^ ^
3674 Callout 1: last capture = 1
3675 0: <unset>
3676 1: X
3677 --->Xxyzabc
3678 ^^
3679 0: Xxyzabc
3680 1: X
3681 2: xyzabc
3682
3683 /(?=(abc))(?C)abcdef/
3684 Capturing subpattern count = 1
3685 No options
3686 First char = 'a'
3687 Need char = 'f'
3688 abcdef\C+
3689 Callout 0: last capture = 1
3690 0: <unset>
3691 1: abc
3692 --->abcdef
3693 ^
3694 0: abcdef
3695 1: abc
3696
3697 /(?!(abc)(?C1)d)(?C2)abcxyz/
3698 Capturing subpattern count = 1
3699 No options
3700 First char = 'a'
3701 Need char = 'z'
3702 abcxyz\C+
3703 Callout 1: last capture = 1
3704 0: <unset>
3705 1: abc
3706 --->abcxyz
3707 ^ ^
3708 Callout 2: last capture = -1
3709 0: <unset>
3710 --->abcxyz
3711 ^
3712 0: abcxyz
3713
3714 /(?<=(abc)(?C))xyz/
3715 Capturing subpattern count = 1
3716 No options
3717 First char = 'x'
3718 Need char = 'z'
3719 abcxyz\C+
3720 Callout 0: last capture = 1
3721 0: <unset>
3722 1: abc
3723 --->abcxyz
3724 ^
3725 0: xyz
3726 1: abc
3727
3728 /(?C)abc/
3729 Capturing subpattern count = 0
3730 No options
3731 First char = 'a'
3732 Need char = 'c'
3733
3734 /(?C)^abc/
3735 Capturing subpattern count = 0
3736 Options: anchored
3737 No first char
3738 No need char
3739
3740 /(?C)a|b/S
3741 Capturing subpattern count = 0
3742 No options
3743 No first char
3744 No need char
3745 Study size = 40
3746 Starting character set: a b
3747
3748 /(?R)/
3749 Failed: recursive call could loop indefinitely at offset 3
3750
3751 /(a|(?R))/
3752 Failed: recursive call could loop indefinitely at offset 6
3753
3754 /(ab|(bc|(de|(?R))))/
3755 Failed: recursive call could loop indefinitely at offset 15
3756
3757 /x(ab|(bc|(de|(?R))))/
3758 Capturing subpattern count = 3
3759 No options
3760 First char = 'x'
3761 No need char
3762 xab
3763 0: xab
3764 1: ab
3765 xbc
3766 0: xbc
3767 1: bc
3768 2: bc
3769 xde
3770 0: xde
3771 1: de
3772 2: de
3773 3: de
3774 xxab
3775 0: xxab
3776 1: xab
3777 2: xab
3778 3: xab
3779 xxxab
3780 0: xxxab
3781 1: xxab
3782 2: xxab
3783 3: xxab
3784 *** Failers
3785 No match
3786 xyab
3787 No match
3788
3789 /(ab|(bc|(de|(?1))))/
3790 Failed: recursive call could loop indefinitely at offset 15
3791
3792 /x(ab|(bc|(de|(?1)x)x)x)/
3793 Failed: recursive call could loop indefinitely at offset 16
3794
3795 /^([^()]|\((?1)*\))*$/
3796 Capturing subpattern count = 1
3797 Options: anchored
3798 No first char
3799 No need char
3800 abc
3801 0: abc
3802 1: c
3803 a(b)c
3804 0: a(b)c
3805 1: c
3806 a(b(c))d
3807 0: a(b(c))d
3808 1: d
3809 *** Failers)
3810 No match
3811 a(b(c)d
3812 No match
3813
3814 /^>abc>([^()]|\((?1)*\))*<xyz<$/
3815 Capturing subpattern count = 1
3816 Options: anchored
3817 No first char
3818 Need char = '<'
3819 >abc>123<xyz<
3820 0: >abc>123<xyz<
3821 1: 3
3822 >abc>1(2)3<xyz<
3823 0: >abc>1(2)3<xyz<
3824 1: 3
3825 >abc>(1(2)3)<xyz<
3826 0: >abc>(1(2)3)<xyz<
3827 1: (1(2)3)
3828
3829 /(a(?1)b)/D
3830 ------------------------------------------------------------------
3831 0 18 Bra 0
3832 3 12 Bra 1
3833 6 1 a
3834 9 3 Recurse
3835 12 1 b
3836 15 12 Ket
3837 18 18 Ket
3838 21 End
3839 ------------------------------------------------------------------
3840 Capturing subpattern count = 1
3841 No options
3842 First char = 'a'
3843 Need char = 'b'
3844
3845 /(a(?1)+b)/D
3846 ------------------------------------------------------------------
3847 0 24 Bra 0
3848 3 18 Bra 1
3849 6 1 a
3850 9 6 Bra 0
3851 12 3 Recurse
3852 15 6 KetRmax
3853 18 1 b
3854 21 18 Ket
3855 24 24 Ket
3856 27 End
3857 ------------------------------------------------------------------
3858 Capturing subpattern count = 1
3859 No options
3860 First char = 'a'
3861 Need char = 'b'
3862
3863 /^\W*(?:((.)\W*(?1)\W*\2|)|((.)\W*(?3)\W*\4|\W*.\W*))\W*$/i
3864 Capturing subpattern count = 4
3865 Max back reference = 4
3866 Options: anchored caseless
3867 No first char
3868 No need char
3869 1221
3870 0: 1221
3871 1: 1221
3872 2: 1
3873 Satan, oscillate my metallic sonatas!
3874 0: Satan, oscillate my metallic sonatas!
3875 1: <unset>
3876 2: <unset>
3877 3: Satan, oscillate my metallic sonatas
3878 4: S
3879 A man, a plan, a canal: Panama!
3880 0: A man, a plan, a canal: Panama!
3881 1: <unset>
3882 2: <unset>
3883 3: A man, a plan, a canal: Panama
3884 4: A
3885 Able was I ere I saw Elba.
3886 0: Able was I ere I saw Elba.
3887 1: <unset>
3888 2: <unset>
3889 3: Able was I ere I saw Elba
3890 4: A
3891 *** Failers
3892 No match
3893 The quick brown fox
3894 No match
3895
3896 /^(\d+|\((?1)([+*-])(?1)\)|-(?1))$/
3897 Capturing subpattern count = 2
3898 Options: anchored
3899 No first char
3900 No need char
3901 12
3902 0: 12
3903 1: 12
3904 (((2+2)*-3)-7)
3905 0: (((2+2)*-3)-7)
3906 1: (((2+2)*-3)-7)
3907 2: -
3908 -12
3909 0: -12
3910 1: -12
3911 *** Failers
3912 No match
3913 ((2+2)*-3)-7)
3914 No match
3915
3916 /^(x(y|(?1){2})z)/
3917 Capturing subpattern count = 2
3918 Options: anchored
3919 No first char
3920 No need char
3921 xyz
3922 0: xyz
3923 1: xyz
3924 2: y
3925 xxyzxyzz
3926 0: xxyzxyzz
3927 1: xxyzxyzz
3928 2: xyzxyz
3929 *** Failers
3930 No match
3931 xxyzz
3932 No match
3933 xxyzxyzxyzz
3934 No match
3935
3936 /((< (?: (?(R) \d++ | [^<>]*+) | (?2)) * >))/x
3937 Capturing subpattern count = 2
3938 Options: extended
3939 First char = '<'
3940 Need char = '>'
3941 <>
3942 0: <>
3943 1: <>
3944 2: <>
3945 <abcd>
3946 0: <abcd>
3947 1: <abcd>
3948 2: <abcd>
3949 <abc <123> hij>
3950 0: <abc <123> hij>
3951 1: <abc <123> hij>
3952 2: <abc <123> hij>
3953 <abc <def> hij>
3954 0: <def>
3955 1: <def>
3956 2: <def>
3957 <abc<>def>
3958 0: <abc<>def>
3959 1: <abc<>def>
3960 2: <abc<>def>
3961 <abc<>
3962 0: <>
3963 1: <>
3964 2: <>
3965 *** Failers
3966 No match
3967 <abc
3968 No match
3969
3970 /(?1)/
3971 Failed: reference to non-existent subpattern at offset 3
3972
3973 /((?2)(abc)/
3974 Failed: reference to non-existent subpattern at offset 4
3975
3976 /^(abc)def(?1)/
3977 Capturing subpattern count = 1
3978 Options: anchored
3979 No first char
3980 No need char
3981 abcdefabc
3982 0: abcdefabc
3983 1: abc
3984
3985 /^(a|b|c)=(?1)+/
3986 Capturing subpattern count = 1
3987 Options: anchored
3988 No first char
3989 No need char
3990 a=a
3991 0: a=a
3992 1: a
3993 a=b
3994 0: a=b
3995 1: a
3996 a=bc
3997 0: a=bc
3998 1: a
3999
4000 /^(a|b|c)=((?1))+/
4001 Capturing subpattern count = 2
4002 Options: anchored
4003 No first char
4004 No need char
4005 a=a
4006 0: a=a
4007 1: a
4008 2: a
4009 a=b
4010 0: a=b
4011 1: a
4012 2: b
4013 a=bc
4014 0: a=bc
4015 1: a
4016 2: c
4017
4018 /a(?P<name1>b|c)d(?P<longername2>e)/D
4019 ------------------------------------------------------------------
4020 0 33 Bra 0
4021 3 1 a
4022 6 6 Bra 1
4023 9 1 b
4024 12 6 Alt
4025 15 1 c
4026 18 12 Ket
4027 21 1 d
4028 24 6 Bra 2
4029 27 1 e
4030 30 6 Ket
4031 33 33 Ket
4032 36 End
4033 ------------------------------------------------------------------
4034 Capturing subpattern count = 2
4035 Named capturing subpatterns:
4036 longername2 2
4037 name1 1
4038 No options
4039 First char = 'a'
4040 Need char = 'e'
4041 abde
4042 0: abde
4043 1: b
4044 2: e
4045 acde
4046 0: acde
4047 1: c
4048 2: e
4049
4050 /(?:a(?P<c>c(?P<d>d)))(?P<a>a)/D
4051 ------------------------------------------------------------------
4052 0 39 Bra 0
4053 3 24 Bra 0
4054 6 1 a
4055 9 15 Bra 1
4056 12 1 c
4057 15 6 Bra 2
4058 18 1 d
4059 21 6 Ket
4060 24 15 Ket
4061 27 24 Ket
4062 30 6 Bra 3
4063 33 1 a
4064 36 6 Ket
4065 39 39 Ket
4066 42 End
4067 ------------------------------------------------------------------
4068 Capturing subpattern count = 3
4069 Named capturing subpatterns:
4070 a 3
4071 c 1
4072 d 2
4073 No options
4074 First char = 'a'
4075 Need char = 'a'
4076
4077 /(?P<a>a)...(?P=a)bbb(?P>a)d/D
4078 ------------------------------------------------------------------
4079 0 29 Bra 0
4080 3 6 Bra 1
4081 6 1 a
4082 9 6 Ket
4083 12 Any
4084 13 Any
4085 14 Any
4086 15 \1
4087 18 3 bbb
4088 23 3 Recurse
4089 26 1 d
4090 29 29 Ket
4091 32 End
4092 ------------------------------------------------------------------
4093 Capturing subpattern count = 1
4094 Max back reference = 1
4095 Named capturing subpatterns:
4096 a 1
4097 No options
4098 First char = 'a'
4099 Need char = 'd'
4100
4101 /^\W*(?:(?P<one>(?P<two>.)\W*(?P>one)\W*(?P=two)|)|(?P<three>(?P<four>.)\W*(?P>three)\W*(?P=four)|\W*.\W*))\W*$/i
4102 Capturing subpattern count = 4
4103 Max back reference = 4
4104 Named capturing subpatterns:
4105 four 4
4106 one 1
4107 three 3
4108 two 2
4109 Options: anchored caseless
4110 No first char
4111 No need char
4112 1221
4113 0: 1221
4114 1: 1221
4115 2: 1
4116 Satan, oscillate my metallic sonatas!
4117 0: Satan, oscillate my metallic sonatas!
4118 1: <unset>
4119 2: <unset>
4120 3: Satan, oscillate my metallic sonatas
4121 4: S
4122 A man, a plan, a canal: Panama!
4123 0: A man, a plan, a canal: Panama!
4124 1: <unset>
4125 2: <unset>
4126 3: A man, a plan, a canal: Panama
4127 4: A
4128 Able was I ere I saw Elba.
4129 0: Able was I ere I saw Elba.
4130 1: <unset>
4131 2: <unset>
4132 3: Able was I ere I saw Elba
4133 4: A
4134 *** Failers
4135 No match
4136 The quick brown fox
4137 No match
4138
4139 /((?(R)a|b))\1(?1)?/
4140 Capturing subpattern count = 1
4141 Max back reference = 1
4142 No options
4143 No first char
4144 No need char
4145 bb
4146 0: bb
4147 1: b
4148 bbaa
4149 0: bba
4150 1: b
4151
4152 /(.*)a/sI
4153 Capturing subpattern count = 1
4154 Options: anchored dotall
4155 No first char
4156 Need char = 'a'
4157
4158 /(.*)a\1/sI
4159 Capturing subpattern count = 1
4160 Max back reference = 1
4161 Options: dotall
4162 No first char
4163 Need char = 'a'
4164
4165 /(.*)a(b)\2/sI
4166 Capturing subpattern count = 2
4167 Max back reference = 2
4168 Options: anchored dotall
4169 No first char
4170 Need char = 'b'
4171
4172 /((.*)a|(.*)b)z/sI
4173 Capturing subpattern count = 3
4174 Options: anchored dotall
4175 No first char
4176 Need char = 'z'
4177
4178 /((.*)a|(.*)b)z\1/sI
4179 Capturing subpattern count = 3
4180 Max back reference = 1
4181 Options: dotall
4182 No first char
4183 Need char = 'z'
4184
4185 /((.*)a|(.*)b)z\2/sI
4186 Capturing subpattern count = 3
4187 Max back reference = 2
4188 Options: dotall
4189 No first char
4190 Need char = 'z'
4191
4192 /((.*)a|(.*)b)z\3/sI
4193 Capturing subpattern count = 3
4194 Max back reference = 3
4195 Options: dotall
4196 No first char
4197 Need char = 'z'
4198
4199 /((.*)a|^(.*)b)z\3/sI
4200 Capturing subpattern count = 3
4201 Max back reference = 3
4202 Options: anchored dotall
4203 No first char
4204 Need char = 'z'
4205
4206 /(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a/sI
4207 Capturing subpattern count = 31
4208 Options: anchored dotall
4209 No first char
4210 No need char
4211
4212 /(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\31/sI
4213 Capturing subpattern count = 31
4214 Max back reference = 31
4215 Options: dotall
4216 No first char
4217 No need char
4218
4219 /(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\32/sI
4220 Capturing subpattern count = 32
4221 Max back reference = 32
4222 Options: dotall
4223 No first char
4224 No need char
4225
4226 /(a)(bc)/ND
4227 ------------------------------------------------------------------
4228 0 22 Bra 0
4229 3 6 Bra 0
4230 6 1 a
4231 9 6 Ket
4232 12 7 Bra 0
4233 15 2 bc
4234 19 7 Ket
4235 22 22 Ket
4236 25 End
4237 ------------------------------------------------------------------
4238 Capturing subpattern count = 0
4239 Options:
4240 First char = 'a'
4241 Need char = 'c'
4242 abc
4243 0: abc
4244
4245 /(?P<one>a)(bc)/ND
4246 ------------------------------------------------------------------
4247 0 22 Bra 0
4248 3 6 Bra 1
4249 6 1 a
4250 9 6 Ket
4251 12 7 Bra 0
4252 15 2 bc
4253 19 7 Ket
4254 22 22 Ket
4255 25 End
4256 ------------------------------------------------------------------
4257 Capturing subpattern count = 1
4258 Named capturing subpatterns:
4259 one 1
4260 Options:
4261 First char = 'a'
4262 Need char = 'c'
4263 abc
4264 0: abc
4265 1: a
4266
4267 /(a)(?P<named>bc)/ND
4268 ------------------------------------------------------------------
4269 0 22 Bra 0
4270 3 6 Bra 0
4271 6 1 a
4272 9 6 Ket
4273 12 7 Bra 1
4274 15 2 bc
4275 19 7 Ket
4276 22 22 Ket
4277 25 End
4278 ------------------------------------------------------------------
4279 Capturing subpattern count = 1
4280 Named capturing subpatterns:
4281 named 1
4282 Options:
4283 First char = 'a'
4284 Need char = 'c'
4285
4286 /(a+)*zz/
4287 Capturing subpattern count = 1
4288 No options
4289 No first char
4290 Need char = 'z'
4291 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazzbbbbbb\M
4292 Minimum match limit = 8
4293 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazz
4294 1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
4295 aaaaaaaaaaaaaz\M
4296 Minimum match limit = 32768
4297 No match
4298
4299 /(aaa(?C1)bbb|ab)/
4300 Capturing subpattern count = 1
4301 No options
4302 First char = 'a'
4303 Need char = 'b'
4304 aaabbb
4305 --->aaabbb
4306 1 ^ ^
4307 0: aaabbb
4308 1: aaabbb
4309 aaabbb\C*0
4310 --->aaabbb
4311 1 ^ ^
4312 0: aaabbb
4313 1: aaabbb
4314 aaabbb\C*1
4315 --->aaabbb
4316 1 ^ ^
4317 Callout data = 1
4318 0: ab
4319 1: ab
4320 aaabbb\C*-1
4321 --->aaabbb
4322 1 ^ ^
4323 Callout data = -1
4324 No match
4325
4326 /ab(?P<one>cd)ef(?P<two>gh)/
4327 Capturing subpattern count = 2
4328 Named capturing subpatterns:
4329 one 1
4330 two 2
4331 No options
4332 First char = 'a'
4333 Need char = 'h'
4334 abcdefgh
4335 0: abcdefgh
4336 1: cd
4337 2: gh
4338 abcdefgh\C1\Gtwo
4339 0: abcdefgh
4340 1: cd
4341 2: gh
4342 1C cd (2)
4343 2G gh (2)
4344 abcdefgh\Cone\Ctwo
4345 0: abcdefgh
4346 1: cd
4347 2: gh
4348 1C cd (2)
4349 2C gh (2)
4350 abcdefgh\Cthree
4351 no parentheses with name "three"
4352 0: abcdefgh
4353 1: cd
4354 2: gh
4355
4356 /(?P<Tes>)(?P<Test>)/D
4357 ------------------------------------------------------------------
4358 0 15 Bra 0
4359 3 3 Bra 1
4360 6 3 Ket
4361 9 3 Bra 2
4362 12 3 Ket
4363 15 15 Ket
4364 18 End
4365 ------------------------------------------------------------------
4366 Capturing subpattern count = 2
4367 Named capturing subpatterns:
4368 Tes 1
4369 Test 2
4370 No options
4371 No first char
4372 No need char
4373
4374 /(?P<Test>)(?P<Tes>)/D
4375 ------------------------------------------------------------------
4376 0 15 Bra 0
4377 3 3 Bra 1
4378 6 3 Ket
4379 9 3 Bra 2
4380 12 3 Ket
4381 15 15 Ket
4382 18 End
4383 ------------------------------------------------------------------
4384 Capturing subpattern count = 2
4385 Named capturing subpatterns:
4386 Tes 2
4387 Test 1
4388 No options
4389 No first char
4390 No need char
4391
4392 /(?P<Z>zz)(?P<A>aa)/
4393 Capturing subpattern count = 2
4394 Named capturing subpatterns:
4395 A 2
4396 Z 1
4397 No options
4398 First char = 'z'
4399 Need char = 'a'
4400 zzaa\CZ
4401 0: zzaa
4402 1: zz
4403 2: aa
4404 1C zz (2)
4405 zzaa\CA
4406 0: zzaa
4407 1: zz
4408 2: aa
4409 2C aa (2)
4410
4411 /(?P<x>eks)(?P<x>eccs)/
4412 Failed: two named groups have the same name at offset 16
4413
4414 /(?P<abc>abc(?P<def>def)(?P<abc>xyz))/
4415 Failed: two named groups have the same name at offset 31
4416
4417 / End of testinput2 /
4418 Capturing subpattern count = 0
4419 No options
4420 First char = ' '
4421 Need char = ' '
4422

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