1# This set of tests is not Perl-compatible. It checks on special features 2# of PCRE2's API, error diagnostics, and the compiled code of some patterns. 3# It also checks the non-Perl syntax that PCRE2 supports (Python, .NET, 4# Oniguruma). There are also some tests where PCRE2 and Perl differ, 5# either because PCRE2 can't be compatible, or there is a possible Perl 6# bug. 7 8# NOTE: This is a non-UTF set of tests. When UTF support is needed, use 9# test 5. 10 11#forbid_utf 12#newline_default lf any anycrlf 13 14# Test binary zeroes in the pattern 15 16# /a\0B/ where 0 is a binary zero 17/61 5c 00 62/B,hex 18------------------------------------------------------------------ 19 Bra 20 a\x00b 21 Ket 22 End 23------------------------------------------------------------------ 24 a\x{0}b 25 0: a\x00b 26 27# /a0b/ where 0 is a binary zero 28/61 00 62/B,hex 29------------------------------------------------------------------ 30 Bra 31 a\x00b 32 Ket 33 End 34------------------------------------------------------------------ 35 a\x{0}b 36 0: a\x00b 37 38# /(?#B0C)DE/ where 0 is a binary zero 39/28 3f 23 42 00 43 29 44 45/B,hex 40------------------------------------------------------------------ 41 Bra 42 DE 43 Ket 44 End 45------------------------------------------------------------------ 46 DE 47 0: DE 48 49/(a)b|/I 50Capture group count = 1 51May match empty string 52Subject length lower bound = 0 53 54/abc/I 55Capture group count = 0 56First code unit = 'a' 57Last code unit = 'c' 58Subject length lower bound = 3 59 abc 60 0: abc 61 defabc 62 0: abc 63 abc\=anchored 64 0: abc 65\= Expect no match 66 defabc\=anchored 67No match 68 ABC 69No match 70 71/^abc/I 72Capture group count = 0 73Compile options: <none> 74Overall options: anchored 75First code unit = 'a' 76Subject length lower bound = 3 77 abc 78 0: abc 79 abc\=anchored 80 0: abc 81\= Expect no match 82 defabc 83No match 84 defabc\=anchored 85No match 86 87/a+bc/I 88Capture group count = 0 89First code unit = 'a' 90Last code unit = 'c' 91Subject length lower bound = 3 92 93/a*bc/I 94Capture group count = 0 95Starting code units: a b 96Last code unit = 'c' 97Subject length lower bound = 2 98 99/a{3}bc/I 100Capture group count = 0 101First code unit = 'a' 102Last code unit = 'c' 103Subject length lower bound = 5 104 105/(abc|a+z)/I 106Capture group count = 1 107First code unit = 'a' 108Subject length lower bound = 2 109 110/^abc$/I 111Capture group count = 0 112Compile options: <none> 113Overall options: anchored 114First code unit = 'a' 115Subject length lower bound = 3 116 abc 117 0: abc 118\= Expect no match 119 def\nabc 120No match 121 122/ab\idef/ 123Failed: error 103 at offset 3: unrecognized character follows \ 124 125/(?X)ab\idef/ 126Failed: error 111 at offset 2: unrecognized character after (? or (?- 127 128/x{5,4}/ 129Failed: error 104 at offset 5: numbers out of order in {} quantifier 130 131/z{65536}/ 132Failed: error 105 at offset 7: number too big in {} quantifier 133 134/[abcd/ 135Failed: error 106 at offset 5: missing terminating ] for character class 136 137/[\B]/B 138Failed: error 107 at offset 2: escape sequence is invalid in character class 139 140/[\R]/B 141Failed: error 107 at offset 2: escape sequence is invalid in character class 142 143/[\X]/B 144Failed: error 107 at offset 2: escape sequence is invalid in character class 145 146/[z-a]/ 147Failed: error 108 at offset 3: range out of order in character class 148 149/^*/ 150Failed: error 109 at offset 1: quantifier does not follow a repeatable item 151 152/(abc/ 153Failed: error 114 at offset 4: missing closing parenthesis 154 155/(?# abc/ 156Failed: error 118 at offset 7: missing ) after (?# comment 157 158/(?z)abc/ 159Failed: error 111 at offset 2: unrecognized character after (? or (?- 160 161/.*b/I 162Capture group count = 0 163First code unit at start or follows newline 164Last code unit = 'b' 165Subject length lower bound = 1 166 167/.*?b/I 168Capture group count = 0 169First code unit at start or follows newline 170Last code unit = 'b' 171Subject length lower bound = 1 172 173/cat|dog|elephant/I 174Capture group count = 0 175Starting code units: c d e 176Subject length lower bound = 3 177 this sentence eventually mentions a cat 178 0: cat 179 this sentences rambles on and on for a while and then reaches elephant 180 0: elephant 181 182/cat|dog|elephant/I 183Capture group count = 0 184Starting code units: c d e 185Subject length lower bound = 3 186 this sentence eventually mentions a cat 187 0: cat 188 this sentences rambles on and on for a while and then reaches elephant 189 0: elephant 190 191/cat|dog|elephant/Ii 192Capture group count = 0 193Options: caseless 194Starting code units: C D E c d e 195Subject length lower bound = 3 196 this sentence eventually mentions a CAT cat 197 0: CAT 198 this sentences rambles on and on for a while to elephant ElePhant 199 0: elephant 200 201/a|[bcd]/I 202Capture group count = 0 203Starting code units: a b c d 204Subject length lower bound = 1 205 206/(a|[^\dZ])/I 207Capture group count = 1 208Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 209 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 210 \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / : ; < = > 211 ? @ 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 212 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 213 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 \x91 \x92 214 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f \xa0 \xa1 215 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae \xaf \xb0 216 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd \xbe \xbf 217 \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc \xcd \xce 218 \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb \xdc \xdd 219 \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea \xeb \xec 220 \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 \xfa \xfb 221 \xfc \xfd \xfe \xff 222Subject length lower bound = 1 223 224/(a|b)*[\s]/I 225Capture group count = 1 226Starting code units: \x09 \x0a \x0b \x0c \x0d \x20 a b 227Subject length lower bound = 1 228 229/(ab\2)/ 230Failed: error 115 at offset 4: reference to non-existent subpattern 231 232/{4,5}abc/ 233Failed: error 109 at offset 4: quantifier does not follow a repeatable item 234 235/(a)(b)(c)\2/I 236Capture group count = 3 237Max back reference = 2 238First code unit = 'a' 239Last code unit = 'c' 240Subject length lower bound = 4 241 abcb 242 0: abcb 243 1: a 244 2: b 245 3: c 246 abcb\=ovector=0 247 0: abcb 248 1: a 249 2: b 250 3: c 251 abcb\=ovector=1 252Matched, but too many substrings 253 0: abcb 254 abcb\=ovector=2 255Matched, but too many substrings 256 0: abcb 257 1: a 258 abcb\=ovector=3 259Matched, but too many substrings 260 0: abcb 261 1: a 262 2: b 263 abcb\=ovector=4 264 0: abcb 265 1: a 266 2: b 267 3: c 268 269/(a)bc|(a)(b)\2/I 270Capture group count = 3 271Max back reference = 2 272First code unit = 'a' 273Subject length lower bound = 3 274 abc 275 0: abc 276 1: a 277 abc\=ovector=0 278 0: abc 279 1: a 280 abc\=ovector=1 281Matched, but too many substrings 282 0: abc 283 abc\=ovector=2 284 0: abc 285 1: a 286 aba 287 0: aba 288 1: <unset> 289 2: a 290 3: b 291 aba\=ovector=0 292 0: aba 293 1: <unset> 294 2: a 295 3: b 296 aba\=ovector=1 297Matched, but too many substrings 298 0: aba 299 aba\=ovector=2 300Matched, but too many substrings 301 0: aba 302 1: <unset> 303 aba\=ovector=3 304Matched, but too many substrings 305 0: aba 306 1: <unset> 307 2: a 308 aba\=ovector=4 309 0: aba 310 1: <unset> 311 2: a 312 3: b 313 314/abc$/I,dollar_endonly 315Capture group count = 0 316Options: dollar_endonly 317First code unit = 'a' 318Last code unit = 'c' 319Subject length lower bound = 3 320 abc 321 0: abc 322\= Expect no match 323 abc\n 324No match 325 abc\ndef 326No match 327 328/(a)(b)(c)(d)(e)\6/ 329Failed: error 115 at offset 16: reference to non-existent subpattern 330 331/the quick brown fox/I 332Capture group count = 0 333First code unit = 't' 334Last code unit = 'x' 335Subject length lower bound = 19 336 the quick brown fox 337 0: the quick brown fox 338 this is a line with the quick brown fox 339 0: the quick brown fox 340 341/the quick brown fox/I,anchored 342Capture group count = 0 343Options: anchored 344First code unit = 't' 345Subject length lower bound = 19 346 the quick brown fox 347 0: the quick brown fox 348\= Expect no match 349 this is a line with the quick brown fox 350No match 351 352/ab(?z)cd/ 353Failed: error 111 at offset 4: unrecognized character after (? or (?- 354 355/^abc|def/I 356Capture group count = 0 357Starting code units: a d 358Subject length lower bound = 3 359 abcdef 360 0: abc 361 abcdef\=notbol 362 0: def 363 364/.*((abc)$|(def))/I 365Capture group count = 3 366First code unit at start or follows newline 367Subject length lower bound = 3 368 defabc 369 0: defabc 370 1: abc 371 2: abc 372 defabc\=noteol 373 0: def 374 1: def 375 2: <unset> 376 3: def 377 378/)/ 379Failed: error 122 at offset 0: unmatched closing parenthesis 380 381/a[]b/ 382Failed: error 106 at offset 4: missing terminating ] for character class 383 384/[^aeiou ]{3,}/I 385Capture group count = 0 386Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 387 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 388 \x1a \x1b \x1c \x1d \x1e \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 389 7 8 9 : ; < = > ? @ 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 Z [ 390 \ ] ^ _ ` b c d f g h j k l m n p q r s t v w x y z { | } ~ \x7f \x80 \x81 391 \x82 \x83 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 392 \x91 \x92 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f 393 \xa0 \xa1 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae 394 \xaf \xb0 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd 395 \xbe \xbf \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc 396 \xcd \xce \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb 397 \xdc \xdd \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea 398 \xeb \xec \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 399 \xfa \xfb \xfc \xfd \xfe \xff 400Subject length lower bound = 3 401 co-processors, and for 402 0: -pr 403 404/<.*>/I 405Capture group count = 0 406First code unit = '<' 407Last code unit = '>' 408Subject length lower bound = 2 409 abc<def>ghi<klm>nop 410 0: <def>ghi<klm> 411 412/<.*?>/I 413Capture group count = 0 414First code unit = '<' 415Last code unit = '>' 416Subject length lower bound = 2 417 abc<def>ghi<klm>nop 418 0: <def> 419 420/<.*>/I,ungreedy 421Capture group count = 0 422Options: ungreedy 423First code unit = '<' 424Last code unit = '>' 425Subject length lower bound = 2 426 abc<def>ghi<klm>nop 427 0: <def> 428 429/(?U)<.*>/I 430Capture group count = 0 431First code unit = '<' 432Last code unit = '>' 433Subject length lower bound = 2 434 abc<def>ghi<klm>nop 435 0: <def> 436 437/<.*?>/I,ungreedy 438Capture group count = 0 439Options: ungreedy 440First code unit = '<' 441Last code unit = '>' 442Subject length lower bound = 2 443 abc<def>ghi<klm>nop 444 0: <def>ghi<klm> 445 446/={3,}/I,ungreedy 447Capture group count = 0 448Options: ungreedy 449First code unit = '=' 450Last code unit = '=' 451Subject length lower bound = 3 452 abc========def 453 0: === 454 455/(?U)={3,}?/I 456Capture group count = 0 457First code unit = '=' 458Last code unit = '=' 459Subject length lower bound = 3 460 abc========def 461 0: ======== 462 463/(?<!bar|cattle)foo/I 464Capture group count = 0 465Max lookbehind = 6 466First code unit = 'f' 467Last code unit = 'o' 468Subject length lower bound = 3 469 foo 470 0: foo 471 catfoo 472 0: foo 473\= Expect no match 474 the barfoo 475No match 476 and cattlefoo 477No match 478 479/abc(?<=a+)b/ 480Failed: error 125 at offset 3: lookbehind assertion is not fixed length 481 482/12345(?<=aaa|b{0,3})b/ 483Failed: error 125 at offset 5: lookbehind assertion is not fixed length 484 485/(?<!(foo)a\1)bar/ 486 487/(?i)abc/I 488Capture group count = 0 489First code unit = 'a' (caseless) 490Last code unit = 'c' (caseless) 491Subject length lower bound = 3 492 493/(a|(?m)a)/I 494Capture group count = 1 495First code unit = 'a' 496Subject length lower bound = 1 497 498/(?i)^1234/I 499Capture group count = 0 500Compile options: <none> 501Overall options: anchored 502First code unit = '1' 503Subject length lower bound = 4 504 505/(^b|(?i)^d)/I 506Capture group count = 1 507Compile options: <none> 508Overall options: anchored 509Starting code units: D b d 510Subject length lower bound = 1 511 512/(?s).*/I 513Capture group count = 0 514May match empty string 515Compile options: <none> 516Overall options: anchored 517Subject length lower bound = 0 518 519/[abcd]/I 520Capture group count = 0 521Starting code units: a b c d 522Subject length lower bound = 1 523 524/(?i)[abcd]/I 525Capture group count = 0 526Starting code units: A B C D a b c d 527Subject length lower bound = 1 528 529/(?m)[xy]|(b|c)/I 530Capture group count = 1 531Starting code units: b c x y 532Subject length lower bound = 1 533 534/(^a|^b)/Im 535Capture group count = 1 536Options: multiline 537First code unit at start or follows newline 538Subject length lower bound = 1 539 540/(?i)(^a|^b)/Im 541Capture group count = 1 542Options: multiline 543First code unit at start or follows newline 544Subject length lower bound = 1 545 546/(a)(?(1)a|b|c)/ 547Failed: error 127 at offset 3: conditional subpattern contains more than two branches 548 549/(?(?=a)a|b|c)/ 550Failed: error 127 at offset 0: conditional subpattern contains more than two branches 551 552/(?(1a)/ 553Failed: error 124 at offset 4: missing closing parenthesis for condition 554 555/(?(1a))/ 556Failed: error 124 at offset 4: missing closing parenthesis for condition 557 558/(?(?i))/ 559Failed: error 128 at offset 2: assertion expected after (?( or (?(?C) 560 561/(?(abc))/ 562Failed: error 115 at offset 3: reference to non-existent subpattern 563 564/(?(?<ab))/ 565Failed: error 128 at offset 2: assertion expected after (?( or (?(?C) 566 567/((?s)blah)\s+\1/I 568Capture group count = 1 569Max back reference = 1 570First code unit = 'b' 571Last code unit = 'h' 572Subject length lower bound = 9 573 574/((?i)blah)\s+\1/I 575Capture group count = 1 576Max back reference = 1 577First code unit = 'b' (caseless) 578Last code unit = 'h' (caseless) 579Subject length lower bound = 9 580 581/((?i)b)/IB 582------------------------------------------------------------------ 583 Bra 584 CBra 1 585 /i b 586 Ket 587 Ket 588 End 589------------------------------------------------------------------ 590Capture group count = 1 591First code unit = 'b' (caseless) 592Subject length lower bound = 1 593 594/(a*b|(?i:c*(?-i)d))/I 595Capture group count = 1 596Starting code units: C a b c d 597Subject length lower bound = 1 598 599/a$/I 600Capture group count = 0 601First code unit = 'a' 602Subject length lower bound = 1 603 a 604 0: a 605 a\n 606 0: a 607\= Expect no match 608 a\=noteol 609No match 610 a\n\=noteol 611No match 612 613/a$/Im 614Capture group count = 0 615Options: multiline 616First code unit = 'a' 617Subject length lower bound = 1 618 a 619 0: a 620 a\n 621 0: a 622 a\n\=noteol 623 0: a 624\= Expect no match 625 a\=noteol 626No match 627 628/\Aabc/Im 629Capture group count = 0 630Max lookbehind = 1 631Compile options: multiline 632Overall options: anchored multiline 633First code unit = 'a' 634Subject length lower bound = 3 635 636/^abc/Im 637Capture group count = 0 638Options: multiline 639First code unit at start or follows newline 640Last code unit = 'c' 641Subject length lower bound = 3 642 643/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/I 644Capture group count = 5 645Compile options: <none> 646Overall options: anchored 647First code unit = 'a' 648Subject length lower bound = 3 649 aaaaabbbbbcccccdef 650 0: aaaaabbbbbcccccdef 651 1: aaaaabbbbbcccccdef 652 2: aaaaa 653 3: b 654 4: bbbbccccc 655 5: def 656 657/(?<=foo)[ab]/I 658Capture group count = 0 659Max lookbehind = 3 660Starting code units: a b 661Subject length lower bound = 1 662 663/(?<!foo)(alpha|omega)/I 664Capture group count = 1 665Max lookbehind = 3 666Starting code units: a o 667Last code unit = 'a' 668Subject length lower bound = 5 669 670/(?!alphabet)[ab]/I 671Capture group count = 0 672Starting code units: a b 673Subject length lower bound = 1 674 675/(?<=foo\n)^bar/Im 676Capture group count = 0 677Max lookbehind = 4 678Contains explicit CR or LF match 679Options: multiline 680Last code unit = 'r' 681Subject length lower bound = 3 682 foo\nbarbar 683 0: bar 684\= Expect no match 685 rhubarb 686No match 687 barbell 688No match 689 abc\nbarton 690No match 691 692/^(?<=foo\n)bar/Im 693Capture group count = 0 694Max lookbehind = 4 695Contains explicit CR or LF match 696Options: multiline 697First code unit at start or follows newline 698Last code unit = 'r' 699Subject length lower bound = 3 700 foo\nbarbar 701 0: bar 702\= Expect no match 703 rhubarb 704No match 705 barbell 706No match 707 abc\nbarton 708No match 709 710/(?>^abc)/Im 711Capture group count = 0 712Options: multiline 713First code unit at start or follows newline 714Last code unit = 'c' 715Subject length lower bound = 3 716 abc 717 0: abc 718 def\nabc 719 0: abc 720\= Expect no match 721 defabc 722No match 723 724/(?<=ab(c+)d)ef/ 725Failed: error 125 at offset 0: lookbehind assertion is not fixed length 726 727/(?<=ab(?<=c+)d)ef/ 728Failed: error 125 at offset 6: lookbehind assertion is not fixed length 729 730/(?<=ab(c|de)f)g/ 731Failed: error 125 at offset 0: lookbehind assertion is not fixed length 732 733/The next three are in testinput2 because they have variable length branches/ 734 735/(?<=bullock|donkey)-cart/I 736Capture group count = 0 737Max lookbehind = 7 738First code unit = '-' 739Last code unit = 't' 740Subject length lower bound = 5 741 the bullock-cart 742 0: -cart 743 a donkey-cart race 744 0: -cart 745\= Expect no match 746 cart 747No match 748 horse-and-cart 749No match 750 751/(?<=ab(?i)x|y|z)/I 752Capture group count = 0 753Max lookbehind = 3 754May match empty string 755Subject length lower bound = 0 756 757/(?>.*)(?<=(abcd)|(xyz))/I 758Capture group count = 2 759Max lookbehind = 4 760May match empty string 761Subject length lower bound = 0 762 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/I 771Capture group count = 0 772Max lookbehind = 4 773First code unit = 'Z' 774Last code unit = 'Z' 775Subject length lower bound = 2 776 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\= Expect no match 789 ZZ 790No match 791 abXYZZ 792No match 793 zzz 794No match 795 bzz 796No match 797 798/(?<!(foo)a)bar/I 799Capture group count = 1 800Max lookbehind = 4 801First code unit = 'b' 802Last code unit = 'r' 803Subject length lower bound = 3 804 bar 805 0: bar 806 foobbar 807 0: bar 808\= Expect no match 809 fooabar 810No match 811 812# Perl does not fail these two for the final subjects. 813 814/^(xa|=?\1a){2}$/ 815 xa=xaa 816 0: xa=xaa 817 1: =xaa 818\= Expect no match 819 xa=xaaa 820No match 821 822/^(xa|=?\1a)+$/ 823 xa=xaa 824 0: xa=xaa 825 1: =xaa 826\= Expect no match 827 xa=xaaa 828No match 829 830# These are syntax tests from Perl 5.005 831 832/a[b-a]/ 833Failed: error 108 at offset 4: range out of order in character class 834 835/a[]b/ 836Failed: error 106 at offset 4: missing terminating ] for character class 837 838/a[/ 839Failed: error 106 at offset 2: missing terminating ] for character class 840 841/*a/ 842Failed: error 109 at offset 0: quantifier does not follow a repeatable item 843 844/(*)b/ 845Failed: error 109 at offset 1: quantifier does not follow a repeatable item 846 847/abc)/ 848Failed: error 122 at offset 3: unmatched closing parenthesis 849 850/(abc/ 851Failed: error 114 at offset 4: missing closing parenthesis 852 853/a**/ 854Failed: error 109 at offset 2: quantifier does not follow a repeatable item 855 856/)(/ 857Failed: error 122 at offset 0: unmatched closing parenthesis 858 859/\1/ 860Failed: error 115 at offset 1: reference to non-existent subpattern 861 862/\2/ 863Failed: error 115 at offset 1: reference to non-existent subpattern 864 865/(a)|\2/ 866Failed: error 115 at offset 5: reference to non-existent subpattern 867 868/a[b-a]/Ii 869Failed: error 108 at offset 4: range out of order in character class 870 871/a[]b/Ii 872Failed: error 106 at offset 4: missing terminating ] for character class 873 874/a[/Ii 875Failed: error 106 at offset 2: missing terminating ] for character class 876 877/*a/Ii 878Failed: error 109 at offset 0: quantifier does not follow a repeatable item 879 880/(*)b/Ii 881Failed: error 109 at offset 1: quantifier does not follow a repeatable item 882 883/abc)/Ii 884Failed: error 122 at offset 3: unmatched closing parenthesis 885 886/(abc/Ii 887Failed: error 114 at offset 4: missing closing parenthesis 888 889/a**/Ii 890Failed: error 109 at offset 2: quantifier does not follow a repeatable item 891 892/)(/Ii 893Failed: error 122 at offset 0: unmatched closing parenthesis 894 895/:(?:/ 896Failed: error 114 at offset 4: missing closing parenthesis 897 898/(?<%)b/ 899Failed: error 162 at offset 3: subpattern name expected 900 901/a(?{)b/ 902Failed: error 111 at offset 3: unrecognized character after (? or (?- 903 904/a(?{{})b/ 905Failed: error 111 at offset 3: unrecognized character after (? or (?- 906 907/a(?{}})b/ 908Failed: error 111 at offset 3: unrecognized character after (? or (?- 909 910/a(?{"{"})b/ 911Failed: error 111 at offset 3: unrecognized character after (? or (?- 912 913/a(?{"{"}})b/ 914Failed: error 111 at offset 3: unrecognized character after (? or (?- 915 916/(?(1?)a|b)/ 917Failed: error 124 at offset 4: missing closing parenthesis for condition 918 919/[a[:xyz:/ 920Failed: error 106 at offset 8: missing terminating ] for character class 921 922/(?<=x+)y/ 923Failed: error 125 at offset 0: lookbehind assertion is not fixed length 924 925/a{37,17}/ 926Failed: error 104 at offset 7: numbers out of order in {} quantifier 927 928/abc/\ 929Failed: error 101 at offset 4: \ at end of pattern 930 931/abc/\i 932Failed: error 101 at offset 4: \ at end of pattern 933 934/(a)bc(d)/I 935Capture group count = 2 936First code unit = 'a' 937Last code unit = 'd' 938Subject length lower bound = 4 939 abcd 940 0: abcd 941 1: a 942 2: d 943 abcd\=copy=2 944 0: abcd 945 1: a 946 2: d 947 2C d (1) 948 abcd\=copy=5 949 0: abcd 950 1: a 951 2: d 952Copy substring 5 failed (-49): unknown substring 953 954/(.{20})/I 955Capture group count = 1 956Subject length lower bound = 20 957 abcdefghijklmnopqrstuvwxyz 958 0: abcdefghijklmnopqrst 959 1: abcdefghijklmnopqrst 960 abcdefghijklmnopqrstuvwxyz\=copy=1 961 0: abcdefghijklmnopqrst 962 1: abcdefghijklmnopqrst 963 1C abcdefghijklmnopqrst (20) 964 abcdefghijklmnopqrstuvwxyz\=get=1 965 0: abcdefghijklmnopqrst 966 1: abcdefghijklmnopqrst 967 1G abcdefghijklmnopqrst (20) 968 969/(.{15})/I 970Capture group count = 1 971Subject length lower bound = 15 972 abcdefghijklmnopqrstuvwxyz 973 0: abcdefghijklmno 974 1: abcdefghijklmno 975 abcdefghijklmnopqrstuvwxyz\=copy=1,get=1 976 0: abcdefghijklmno 977 1: abcdefghijklmno 978 1C abcdefghijklmno (15) 979 1G abcdefghijklmno (15) 980 981/(.{16})/I 982Capture group count = 1 983Subject length lower bound = 16 984 abcdefghijklmnopqrstuvwxyz 985 0: abcdefghijklmnop 986 1: abcdefghijklmnop 987 abcdefghijklmnopqrstuvwxyz\=copy=1,get=1,getall 988 0: abcdefghijklmnop 989 1: abcdefghijklmnop 990 1C abcdefghijklmnop (16) 991 1G abcdefghijklmnop (16) 992 0L abcdefghijklmnop 993 1L abcdefghijklmnop 994 995/^(a|(bc))de(f)/I 996Capture group count = 3 997Compile options: <none> 998Overall options: anchored 999Starting code units: a b 1000Subject length lower bound = 4 1001 adef\=get=1,get=2,get=3,get=4,getall 1002 0: adef 1003 1: a 1004 2: <unset> 1005 3: f 1006 1G a (1) 1007Get substring 2 failed (-55): requested value is not set 1008 3G f (1) 1009Get substring 4 failed (-49): unknown substring 1010 0L adef 1011 1L a 1012 2L 1013 3L f 1014 bcdef\=get=1,get=2,get=3,get=4,getall 1015 0: bcdef 1016 1: bc 1017 2: bc 1018 3: f 1019 1G bc (2) 1020 2G bc (2) 1021 3G f (1) 1022Get substring 4 failed (-49): unknown substring 1023 0L bcdef 1024 1L bc 1025 2L bc 1026 3L f 1027 adefghijk\=copy=0 1028 0: adef 1029 1: a 1030 2: <unset> 1031 3: f 1032 0C adef (4) 1033 1034/^abc\00def/I 1035Capture group count = 0 1036Compile options: <none> 1037Overall options: anchored 1038First code unit = 'a' 1039Subject length lower bound = 7 1040 abc\00def\=copy=0,getall 1041 0: abc\x00def 1042 0C abc\x00def (7) 1043 0L abc\x00def 1044 1045/word ((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ 1046)((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ 1047)?)?)?)?)?)?)?)?)?otherword/I 1048Capture group count = 8 1049Contains explicit CR or LF match 1050First code unit = 'w' 1051Last code unit = 'd' 1052Subject length lower bound = 14 1053 1054/.*X/IB 1055------------------------------------------------------------------ 1056 Bra 1057 Any* 1058 X 1059 Ket 1060 End 1061------------------------------------------------------------------ 1062Capture group count = 0 1063First code unit at start or follows newline 1064Last code unit = 'X' 1065Subject length lower bound = 1 1066 1067/.*X/IBs 1068------------------------------------------------------------------ 1069 Bra 1070 AllAny* 1071 X 1072 Ket 1073 End 1074------------------------------------------------------------------ 1075Capture group count = 0 1076Compile options: dotall 1077Overall options: anchored dotall 1078Last code unit = 'X' 1079Subject length lower bound = 1 1080 1081/(.*X|^B)/IB 1082------------------------------------------------------------------ 1083 Bra 1084 CBra 1 1085 Any* 1086 X 1087 Alt 1088 ^ 1089 B 1090 Ket 1091 Ket 1092 End 1093------------------------------------------------------------------ 1094Capture group count = 1 1095First code unit at start or follows newline 1096Subject length lower bound = 1 1097 1098/(.*X|^B)/IBs 1099------------------------------------------------------------------ 1100 Bra 1101 CBra 1 1102 AllAny* 1103 X 1104 Alt 1105 ^ 1106 B 1107 Ket 1108 Ket 1109 End 1110------------------------------------------------------------------ 1111Capture group count = 1 1112Compile options: dotall 1113Overall options: anchored dotall 1114Subject length lower bound = 1 1115 1116/(?s)(.*X|^B)/IB 1117------------------------------------------------------------------ 1118 Bra 1119 CBra 1 1120 AllAny* 1121 X 1122 Alt 1123 ^ 1124 B 1125 Ket 1126 Ket 1127 End 1128------------------------------------------------------------------ 1129Capture group count = 1 1130Compile options: <none> 1131Overall options: anchored 1132Subject length lower bound = 1 1133 1134/(?s:.*X|^B)/IB 1135------------------------------------------------------------------ 1136 Bra 1137 Bra 1138 AllAny* 1139 X 1140 Alt 1141 ^ 1142 B 1143 Ket 1144 Ket 1145 End 1146------------------------------------------------------------------ 1147Capture group count = 0 1148Compile options: <none> 1149Overall options: anchored 1150Subject length lower bound = 1 1151 1152/\Biss\B/I,aftertext 1153Capture group count = 0 1154Max lookbehind = 1 1155First code unit = 'i' 1156Last code unit = 's' 1157Subject length lower bound = 3 1158 Mississippi 1159 0: iss 1160 0+ issippi 1161 1162/iss/I,aftertext,altglobal 1163Capture group count = 0 1164First code unit = 'i' 1165Last code unit = 's' 1166Subject length lower bound = 3 1167 Mississippi 1168 0: iss 1169 0+ issippi 1170 0: iss 1171 0+ ippi 1172 1173/\Biss\B/I,aftertext,altglobal 1174Capture group count = 0 1175Max lookbehind = 1 1176First code unit = 'i' 1177Last code unit = 's' 1178Subject length lower bound = 3 1179 Mississippi 1180 0: iss 1181 0+ issippi 1182 1183/\Biss\B/Ig,aftertext 1184Capture group count = 0 1185Max lookbehind = 1 1186First code unit = 'i' 1187Last code unit = 's' 1188Subject length lower bound = 3 1189 Mississippi 1190 0: iss 1191 0+ issippi 1192 0: iss 1193 0+ ippi 1194\= Expect no match 1195 Mississippi\=anchored 1196No match 1197 1198/(?<=[Ms])iss/Ig,aftertext 1199Capture group count = 0 1200Max lookbehind = 1 1201First code unit = 'i' 1202Last code unit = 's' 1203Subject length lower bound = 3 1204 Mississippi 1205 0: iss 1206 0+ issippi 1207 0: iss 1208 0+ ippi 1209 1210/(?<=[Ms])iss/I,aftertext,altglobal 1211Capture group count = 0 1212Max lookbehind = 1 1213First code unit = 'i' 1214Last code unit = 's' 1215Subject length lower bound = 3 1216 Mississippi 1217 0: iss 1218 0+ issippi 1219 1220/^iss/Ig,aftertext 1221Capture group count = 0 1222Compile options: <none> 1223Overall options: anchored 1224First code unit = 'i' 1225Subject length lower bound = 3 1226 ississippi 1227 0: iss 1228 0+ issippi 1229 1230/.*iss/Ig,aftertext 1231Capture group count = 0 1232First code unit at start or follows newline 1233Last code unit = 's' 1234Subject length lower bound = 3 1235 abciss\nxyzisspqr 1236 0: abciss 1237 0+ \x0axyzisspqr 1238 0: xyziss 1239 0+ pqr 1240 1241/.i./Ig,aftertext 1242Capture group count = 0 1243Last code unit = 'i' 1244Subject length lower bound = 3 1245 Mississippi 1246 0: Mis 1247 0+ sissippi 1248 0: sis 1249 0+ sippi 1250 0: sip 1251 0+ pi 1252 Mississippi\=anchored 1253 0: Mis 1254 0+ sissippi 1255 0: sis 1256 0+ sippi 1257 0: sip 1258 0+ pi 1259 Missouri river 1260 0: Mis 1261 0+ souri river 1262 0: ri 1263 0+ river 1264 0: riv 1265 0+ er 1266 Missouri river\=anchored 1267 0: Mis 1268 0+ souri river 1269 1270/^.is/Ig,aftertext 1271Capture group count = 0 1272Compile options: <none> 1273Overall options: anchored 1274Subject length lower bound = 3 1275 Mississippi 1276 0: Mis 1277 0+ sissippi 1278 1279/^ab\n/Ig,aftertext 1280Capture group count = 0 1281Contains explicit CR or LF match 1282Compile options: <none> 1283Overall options: anchored 1284First code unit = 'a' 1285Subject length lower bound = 3 1286 ab\nab\ncd 1287 0: ab\x0a 1288 0+ ab\x0acd 1289 1290/^ab\n/Igm,aftertext 1291Capture group count = 0 1292Contains explicit CR or LF match 1293Options: multiline 1294First code unit at start or follows newline 1295Last code unit = \x0a 1296Subject length lower bound = 3 1297 ab\nab\ncd 1298 0: ab\x0a 1299 0+ ab\x0acd 1300 0: ab\x0a 1301 0+ cd 1302 1303/^/gm,newline=any 1304 a\rb\nc\r\nxyz\=aftertext 1305 0: 1306 0+ a\x0db\x0ac\x0d\x0axyz 1307 0: 1308 0+ b\x0ac\x0d\x0axyz 1309 0: 1310 0+ c\x0d\x0axyz 1311 0: 1312 0+ xyz 1313 1314/abc/I 1315Capture group count = 0 1316First code unit = 'a' 1317Last code unit = 'c' 1318Subject length lower bound = 3 1319 1320/abc|bac/I 1321Capture group count = 0 1322Starting code units: a b 1323Last code unit = 'c' 1324Subject length lower bound = 3 1325 1326/(abc|bac)/I 1327Capture group count = 1 1328Starting code units: a b 1329Last code unit = 'c' 1330Subject length lower bound = 3 1331 1332/(abc|(c|dc))/I 1333Capture group count = 2 1334Starting code units: a c d 1335Last code unit = 'c' 1336Subject length lower bound = 1 1337 1338/(abc|(d|de)c)/I 1339Capture group count = 2 1340Starting code units: a d 1341Last code unit = 'c' 1342Subject length lower bound = 2 1343 1344/a*/I 1345Capture group count = 0 1346May match empty string 1347Subject length lower bound = 0 1348 1349/a+/I 1350Capture group count = 0 1351First code unit = 'a' 1352Subject length lower bound = 1 1353 1354/(baa|a+)/I 1355Capture group count = 1 1356Starting code units: a b 1357Last code unit = 'a' 1358Subject length lower bound = 1 1359 1360/a{0,3}/I 1361Capture group count = 0 1362May match empty string 1363Subject length lower bound = 0 1364 1365/baa{3,}/I 1366Capture group count = 0 1367First code unit = 'b' 1368Last code unit = 'a' 1369Subject length lower bound = 5 1370 1371/"([^\\"]+|\\.)*"/I 1372Capture group count = 1 1373First code unit = '"' 1374Last code unit = '"' 1375Subject length lower bound = 2 1376 1377/(abc|ab[cd])/I 1378Capture group count = 1 1379First code unit = 'a' 1380Subject length lower bound = 3 1381 1382/(a|.)/I 1383Capture group count = 1 1384Subject length lower bound = 1 1385 1386/a|ba|\w/I 1387Capture group count = 0 1388Starting code units: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 1389 Q R S T U V W X Y Z _ 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 z 1390Subject length lower bound = 1 1391 1392/abc(?=pqr)/I 1393Capture group count = 0 1394First code unit = 'a' 1395Last code unit = 'r' 1396Subject length lower bound = 3 1397 1398/...(?<=abc)/I 1399Capture group count = 0 1400Max lookbehind = 3 1401Subject length lower bound = 3 1402 1403/abc(?!pqr)/I 1404Capture group count = 0 1405First code unit = 'a' 1406Last code unit = 'c' 1407Subject length lower bound = 3 1408 1409/ab./I 1410Capture group count = 0 1411First code unit = 'a' 1412Last code unit = 'b' 1413Subject length lower bound = 3 1414 1415/ab[xyz]/I 1416Capture group count = 0 1417First code unit = 'a' 1418Last code unit = 'b' 1419Subject length lower bound = 3 1420 1421/abc*/I 1422Capture group count = 0 1423First code unit = 'a' 1424Last code unit = 'b' 1425Subject length lower bound = 2 1426 1427/ab.c*/I 1428Capture group count = 0 1429First code unit = 'a' 1430Last code unit = 'b' 1431Subject length lower bound = 3 1432 1433/a.c*/I 1434Capture group count = 0 1435First code unit = 'a' 1436Subject length lower bound = 2 1437 1438/.c*/I 1439Capture group count = 0 1440Subject length lower bound = 1 1441 1442/ac*/I 1443Capture group count = 0 1444First code unit = 'a' 1445Subject length lower bound = 1 1446 1447/(a.c*|b.c*)/I 1448Capture group count = 1 1449Starting code units: a b 1450Subject length lower bound = 2 1451 1452/a.c*|aba/I 1453Capture group count = 0 1454First code unit = 'a' 1455Subject length lower bound = 2 1456 1457/.+a/I 1458Capture group count = 0 1459Last code unit = 'a' 1460Subject length lower bound = 2 1461 1462/(?=abcda)a.*/I 1463Capture group count = 0 1464First code unit = 'a' 1465Last code unit = 'a' 1466Subject length lower bound = 2 1467 1468/(?=a)a.*/I 1469Capture group count = 0 1470First code unit = 'a' 1471Subject length lower bound = 1 1472 1473/a(b)*/I 1474Capture group count = 1 1475First code unit = 'a' 1476Subject length lower bound = 1 1477 1478/a\d*/I 1479Capture group count = 0 1480First code unit = 'a' 1481Subject length lower bound = 1 1482 1483/ab\d*/I 1484Capture group count = 0 1485First code unit = 'a' 1486Last code unit = 'b' 1487Subject length lower bound = 2 1488 1489/a(\d)*/I 1490Capture group count = 1 1491First code unit = 'a' 1492Subject length lower bound = 1 1493 1494/abcde{0,0}/I 1495Capture group count = 0 1496First code unit = 'a' 1497Last code unit = 'd' 1498Subject length lower bound = 4 1499 1500/ab\d+/I 1501Capture group count = 0 1502First code unit = 'a' 1503Last code unit = 'b' 1504Subject length lower bound = 3 1505 1506/a(?(1)b)(.)/I 1507Capture group count = 1 1508Max back reference = 1 1509First code unit = 'a' 1510Subject length lower bound = 2 1511 1512/a(?(1)bag|big)(.)/I 1513Capture group count = 1 1514Max back reference = 1 1515First code unit = 'a' 1516Last code unit = 'g' 1517Subject length lower bound = 5 1518 1519/a(?(1)bag|big)*(.)/I 1520Capture group count = 1 1521Max back reference = 1 1522First code unit = 'a' 1523Subject length lower bound = 2 1524 1525/a(?(1)bag|big)+(.)/I 1526Capture group count = 1 1527Max back reference = 1 1528First code unit = 'a' 1529Last code unit = 'g' 1530Subject length lower bound = 5 1531 1532/a(?(1)b..|b..)(.)/I 1533Capture group count = 1 1534Max back reference = 1 1535First code unit = 'a' 1536Last code unit = 'b' 1537Subject length lower bound = 5 1538 1539/ab\d{0}e/I 1540Capture group count = 0 1541First code unit = 'a' 1542Last code unit = 'e' 1543Subject length lower bound = 3 1544 1545/a?b?/I 1546Capture group count = 0 1547May match empty string 1548Subject length lower bound = 0 1549 a 1550 0: a 1551 b 1552 0: b 1553 ab 1554 0: ab 1555 \ 1556 0: 1557\= Expect no match 1558 \=notempty 1559No match 1560 1561/|-/I 1562Capture group count = 0 1563May match empty string 1564Subject length lower bound = 0 1565 abcd 1566 0: 1567 -abc 1568 0: 1569 ab-c\=notempty 1570 0: - 1571\= Expect no match 1572 abc\=notempty 1573No match 1574 1575/^.?abcd/I 1576Capture group count = 0 1577Compile options: <none> 1578Overall options: anchored 1579Last code unit = 'd' 1580Subject length lower bound = 4 1581 1582/\( # ( at start 1583 (?: # Non-capturing bracket 1584 (?>[^()]+) # Either a sequence of non-brackets (no backtracking) 1585 | # Or 1586 (?R) # Recurse - i.e. nested bracketed string 1587 )* # Zero or more contents 1588 \) # Closing ) 1589 /Ix 1590Capture group count = 0 1591Options: extended 1592First code unit = '(' 1593Last code unit = ')' 1594Subject length lower bound = 2 1595 (abcd) 1596 0: (abcd) 1597 (abcd)xyz 1598 0: (abcd) 1599 xyz(abcd) 1600 0: (abcd) 1601 (ab(xy)cd)pqr 1602 0: (ab(xy)cd) 1603 (ab(xycd)pqr 1604 0: (xycd) 1605 () abc () 1606 0: () 1607 12(abcde(fsh)xyz(foo(bar))lmno)89 1608 0: (abcde(fsh)xyz(foo(bar))lmno) 1609\= Expect no match 1610 abcd 1611No match 1612 abcd) 1613No match 1614 (abcd 1615No match 1616 1617/\( ( (?>[^()]+) | (?R) )* \) /Igx 1618Capture group count = 1 1619Options: extended 1620First code unit = '(' 1621Last code unit = ')' 1622Subject length lower bound = 2 1623 (ab(xy)cd)pqr 1624 0: (ab(xy)cd) 1625 1: cd 1626 1(abcd)(x(y)z)pqr 1627 0: (abcd) 1628 1: abcd 1629 0: (x(y)z) 1630 1: z 1631 1632/\( (?: (?>[^()]+) | (?R) ) \) /Ix 1633Capture group count = 0 1634Options: extended 1635First code unit = '(' 1636Last code unit = ')' 1637Subject length lower bound = 3 1638 (abcd) 1639 0: (abcd) 1640 (ab(xy)cd) 1641 0: (xy) 1642 (a(b(c)d)e) 1643 0: (c) 1644 ((ab)) 1645 0: ((ab)) 1646\= Expect no match 1647 () 1648No match 1649 1650/\( (?: (?>[^()]+) | (?R) )? \) /Ix 1651Capture group count = 0 1652Options: extended 1653First code unit = '(' 1654Last code unit = ')' 1655Subject length lower bound = 2 1656 () 1657 0: () 1658 12(abcde(fsh)xyz(foo(bar))lmno)89 1659 0: (fsh) 1660 1661/\( ( (?>[^()]+) | (?R) )* \) /Ix 1662Capture group count = 1 1663Options: extended 1664First code unit = '(' 1665Last code unit = ')' 1666Subject length lower bound = 2 1667 (ab(xy)cd) 1668 0: (ab(xy)cd) 1669 1: cd 1670 1671/\( ( ( (?>[^()]+) | (?R) )* ) \) /Ix 1672Capture group count = 2 1673Options: extended 1674First code unit = '(' 1675Last code unit = ')' 1676Subject length lower bound = 2 1677 (ab(xy)cd) 1678 0: (ab(xy)cd) 1679 1: ab(xy)cd 1680 2: cd 1681 1682/\( (123)? ( ( (?>[^()]+) | (?R) )* ) \) /Ix 1683Capture group count = 3 1684Options: extended 1685First code unit = '(' 1686Last code unit = ')' 1687Subject length lower bound = 2 1688 (ab(xy)cd) 1689 0: (ab(xy)cd) 1690 1: <unset> 1691 2: ab(xy)cd 1692 3: cd 1693 (123ab(xy)cd) 1694 0: (123ab(xy)cd) 1695 1: 123 1696 2: ab(xy)cd 1697 3: cd 1698 1699/\( ( (123)? ( (?>[^()]+) | (?R) )* ) \) /Ix 1700Capture group count = 3 1701Options: extended 1702First code unit = '(' 1703Last code unit = ')' 1704Subject length lower bound = 2 1705 (ab(xy)cd) 1706 0: (ab(xy)cd) 1707 1: ab(xy)cd 1708 2: <unset> 1709 3: cd 1710 (123ab(xy)cd) 1711 0: (123ab(xy)cd) 1712 1: 123ab(xy)cd 1713 2: 123 1714 3: cd 1715 1716/\( (((((((((( ( (?>[^()]+) | (?R) )* )))))))))) \) /Ix 1717Capture group count = 11 1718Options: extended 1719First code unit = '(' 1720Last code unit = ')' 1721Subject length lower bound = 2 1722 (ab(xy)cd) 1723 0: (ab(xy)cd) 1724 1: ab(xy)cd 1725 2: ab(xy)cd 1726 3: ab(xy)cd 1727 4: ab(xy)cd 1728 5: ab(xy)cd 1729 6: ab(xy)cd 1730 7: ab(xy)cd 1731 8: ab(xy)cd 1732 9: ab(xy)cd 173310: ab(xy)cd 173411: cd 1735 1736/\( ( ( (?>[^()<>]+) | ((?>[^()]+)) | (?R) )* ) \) /Ix 1737Capture group count = 3 1738Options: extended 1739First code unit = '(' 1740Last code unit = ')' 1741Subject length lower bound = 2 1742 (abcd(xyz<p>qrs)123) 1743 0: (abcd(xyz<p>qrs)123) 1744 1: abcd(xyz<p>qrs)123 1745 2: 123 1746 1747/\( ( ( (?>[^()]+) | ((?R)) )* ) \) /Ix 1748Capture group count = 3 1749Options: extended 1750First code unit = '(' 1751Last code unit = ')' 1752Subject length lower bound = 2 1753 (ab(cd)ef) 1754 0: (ab(cd)ef) 1755 1: ab(cd)ef 1756 2: ef 1757 3: (cd) 1758 (ab(cd(ef)gh)ij) 1759 0: (ab(cd(ef)gh)ij) 1760 1: ab(cd(ef)gh)ij 1761 2: ij 1762 3: (cd(ef)gh) 1763 1764/^[[:alnum:]]/IB 1765------------------------------------------------------------------ 1766 Bra 1767 ^ 1768 [0-9A-Za-z] 1769 Ket 1770 End 1771------------------------------------------------------------------ 1772Capture group count = 0 1773Compile options: <none> 1774Overall options: anchored 1775Starting code units: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 1776 Q R S T U V W X Y Z 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 z 1777Subject length lower bound = 1 1778 1779/^[[:^alnum:]]/IB 1780------------------------------------------------------------------ 1781 Bra 1782 ^ 1783 [\x00-/:-@[-`{-\xff] (neg) 1784 Ket 1785 End 1786------------------------------------------------------------------ 1787Capture group count = 0 1788Compile options: <none> 1789Overall options: anchored 1790Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 1791 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 1792 \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / : ; < = > 1793 ? @ [ \ ] ^ _ ` { | } ~ \x7f \x80 \x81 \x82 \x83 \x84 \x85 \x86 \x87 \x88 1794 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 \x91 \x92 \x93 \x94 \x95 \x96 \x97 1795 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f \xa0 \xa1 \xa2 \xa3 \xa4 \xa5 \xa6 1796 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae \xaf \xb0 \xb1 \xb2 \xb3 \xb4 \xb5 1797 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd \xbe \xbf \xc0 \xc1 \xc2 \xc3 \xc4 1798 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc \xcd \xce \xcf \xd0 \xd1 \xd2 \xd3 1799 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb \xdc \xdd \xde \xdf \xe0 \xe1 \xe2 1800 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea \xeb \xec \xed \xee \xef \xf0 \xf1 1801 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 \xfa \xfb \xfc \xfd \xfe \xff 1802Subject length lower bound = 1 1803 1804/^[[:alpha:]]/IB 1805------------------------------------------------------------------ 1806 Bra 1807 ^ 1808 [A-Za-z] 1809 Ket 1810 End 1811------------------------------------------------------------------ 1812Capture group count = 0 1813Compile options: <none> 1814Overall options: anchored 1815Starting code units: 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 Z 1816 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 z 1817Subject length lower bound = 1 1818 1819/^[[:^alpha:]]/IB 1820------------------------------------------------------------------ 1821 Bra 1822 ^ 1823 [\x00-@[-`{-\xff] (neg) 1824 Ket 1825 End 1826------------------------------------------------------------------ 1827Capture group count = 0 1828Compile options: <none> 1829Overall options: anchored 1830Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 1831 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 1832 \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 1833 5 6 7 8 9 : ; < = > ? @ [ \ ] ^ _ ` { | } ~ \x7f \x80 \x81 \x82 \x83 \x84 1834 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 \x91 \x92 \x93 1835 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f \xa0 \xa1 \xa2 1836 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae \xaf \xb0 \xb1 1837 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd \xbe \xbf \xc0 1838 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc \xcd \xce \xcf 1839 \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb \xdc \xdd \xde 1840 \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea \xeb \xec \xed 1841 \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 \xfa \xfb \xfc 1842 \xfd \xfe \xff 1843Subject length lower bound = 1 1844 1845/[_[:alpha:]]/I 1846Capture group count = 0 1847Starting code units: 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 Z 1848 _ 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 z 1849Subject length lower bound = 1 1850 1851/^[[:ascii:]]/IB 1852------------------------------------------------------------------ 1853 Bra 1854 ^ 1855 [\x00-\x7f] 1856 Ket 1857 End 1858------------------------------------------------------------------ 1859Capture group count = 0 1860Compile options: <none> 1861Overall options: anchored 1862Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 1863 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 1864 \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 1865 5 6 7 8 9 : ; < = > ? @ 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 1866 Z [ \ ] ^ _ ` 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 z { | } ~ 1867 \x7f 1868Subject length lower bound = 1 1869 1870/^[[:^ascii:]]/IB 1871------------------------------------------------------------------ 1872 Bra 1873 ^ 1874 [\x80-\xff] (neg) 1875 Ket 1876 End 1877------------------------------------------------------------------ 1878Capture group count = 0 1879Compile options: <none> 1880Overall options: anchored 1881Starting code units: \x80 \x81 \x82 \x83 \x84 \x85 \x86 \x87 \x88 \x89 \x8a 1882 \x8b \x8c \x8d \x8e \x8f \x90 \x91 \x92 \x93 \x94 \x95 \x96 \x97 \x98 \x99 1883 \x9a \x9b \x9c \x9d \x9e \x9f \xa0 \xa1 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 1884 \xa9 \xaa \xab \xac \xad \xae \xaf \xb0 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 1885 \xb8 \xb9 \xba \xbb \xbc \xbd \xbe \xbf \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 1886 \xc7 \xc8 \xc9 \xca \xcb \xcc \xcd \xce \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 1887 \xd6 \xd7 \xd8 \xd9 \xda \xdb \xdc \xdd \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 1888 \xe5 \xe6 \xe7 \xe8 \xe9 \xea \xeb \xec \xed \xee \xef \xf0 \xf1 \xf2 \xf3 1889 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 \xfa \xfb \xfc \xfd \xfe \xff 1890Subject length lower bound = 1 1891 1892/^[[:blank:]]/IB 1893------------------------------------------------------------------ 1894 Bra 1895 ^ 1896 [\x09 ] 1897 Ket 1898 End 1899------------------------------------------------------------------ 1900Capture group count = 0 1901Compile options: <none> 1902Overall options: anchored 1903Starting code units: \x09 \x20 1904Subject length lower bound = 1 1905 1906/^[[:^blank:]]/IB 1907------------------------------------------------------------------ 1908 Bra 1909 ^ 1910 [\x00-\x08\x0a-\x1f!-\xff] (neg) 1911 Ket 1912 End 1913------------------------------------------------------------------ 1914Capture group count = 0 1915Compile options: <none> 1916Overall options: anchored 1917Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0a \x0b 1918 \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a 1919 \x1b \x1c \x1d \x1e \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 1920 : ; < = > ? @ 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 Z [ \ ] ^ 1921 _ ` 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 z { | } ~ \x7f \x80 1922 \x81 \x82 \x83 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f 1923 \x90 \x91 \x92 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e 1924 \x9f \xa0 \xa1 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad 1925 \xae \xaf \xb0 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc 1926 \xbd \xbe \xbf \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb 1927 \xcc \xcd \xce \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda 1928 \xdb \xdc \xdd \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 1929 \xea \xeb \xec \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 1930 \xf9 \xfa \xfb \xfc \xfd \xfe \xff 1931Subject length lower bound = 1 1932 1933/[\n\x0b\x0c\x0d[:blank:]]/I 1934Capture group count = 0 1935Contains explicit CR or LF match 1936Starting code units: \x09 \x0a \x0b \x0c \x0d \x20 1937Subject length lower bound = 1 1938 1939/^[[:cntrl:]]/IB 1940------------------------------------------------------------------ 1941 Bra 1942 ^ 1943 [\x00-\x1f\x7f] 1944 Ket 1945 End 1946------------------------------------------------------------------ 1947Capture group count = 0 1948Compile options: <none> 1949Overall options: anchored 1950Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 1951 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 1952 \x1a \x1b \x1c \x1d \x1e \x1f \x7f 1953Subject length lower bound = 1 1954 1955/^[[:digit:]]/IB 1956------------------------------------------------------------------ 1957 Bra 1958 ^ 1959 [0-9] 1960 Ket 1961 End 1962------------------------------------------------------------------ 1963Capture group count = 0 1964Compile options: <none> 1965Overall options: anchored 1966Starting code units: 0 1 2 3 4 5 6 7 8 9 1967Subject length lower bound = 1 1968 1969/^[[:graph:]]/IB 1970------------------------------------------------------------------ 1971 Bra 1972 ^ 1973 [!-~] 1974 Ket 1975 End 1976------------------------------------------------------------------ 1977Capture group count = 0 1978Compile options: <none> 1979Overall options: anchored 1980Starting code units: ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : 1981 ; < = > ? @ 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 Z [ \ ] ^ _ 1982 ` 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 z { | } ~ 1983Subject length lower bound = 1 1984 1985/^[[:lower:]]/IB 1986------------------------------------------------------------------ 1987 Bra 1988 ^ 1989 [a-z] 1990 Ket 1991 End 1992------------------------------------------------------------------ 1993Capture group count = 0 1994Compile options: <none> 1995Overall options: anchored 1996Starting code units: 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 z 1997Subject length lower bound = 1 1998 1999/^[[:print:]]/IB 2000------------------------------------------------------------------ 2001 Bra 2002 ^ 2003 [ -~] 2004 Ket 2005 End 2006------------------------------------------------------------------ 2007Capture group count = 0 2008Compile options: <none> 2009Overall options: anchored 2010Starting code units: \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 2011 9 : ; < = > ? @ 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 Z [ \ ] 2012 ^ _ ` 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 z { | } ~ 2013Subject length lower bound = 1 2014 2015/^[[:punct:]]/IB 2016------------------------------------------------------------------ 2017 Bra 2018 ^ 2019 [!-/:-@[-`{-~] 2020 Ket 2021 End 2022------------------------------------------------------------------ 2023Capture group count = 0 2024Compile options: <none> 2025Overall options: anchored 2026Starting code units: ! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ 2027 _ ` { | } ~ 2028Subject length lower bound = 1 2029 2030/^[[:space:]]/IB 2031------------------------------------------------------------------ 2032 Bra 2033 ^ 2034 [\x09-\x0d ] 2035 Ket 2036 End 2037------------------------------------------------------------------ 2038Capture group count = 0 2039Compile options: <none> 2040Overall options: anchored 2041Starting code units: \x09 \x0a \x0b \x0c \x0d \x20 2042Subject length lower bound = 1 2043 2044/^[[:upper:]]/IB 2045------------------------------------------------------------------ 2046 Bra 2047 ^ 2048 [A-Z] 2049 Ket 2050 End 2051------------------------------------------------------------------ 2052Capture group count = 0 2053Compile options: <none> 2054Overall options: anchored 2055Starting code units: 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 Z 2056Subject length lower bound = 1 2057 2058/^[[:xdigit:]]/IB 2059------------------------------------------------------------------ 2060 Bra 2061 ^ 2062 [0-9A-Fa-f] 2063 Ket 2064 End 2065------------------------------------------------------------------ 2066Capture group count = 0 2067Compile options: <none> 2068Overall options: anchored 2069Starting code units: 0 1 2 3 4 5 6 7 8 9 A B C D E F a b c d e f 2070Subject length lower bound = 1 2071 2072/^[[:word:]]/IB 2073------------------------------------------------------------------ 2074 Bra 2075 ^ 2076 [0-9A-Z_a-z] 2077 Ket 2078 End 2079------------------------------------------------------------------ 2080Capture group count = 0 2081Compile options: <none> 2082Overall options: anchored 2083Starting code units: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 2084 Q R S T U V W X Y Z _ 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 z 2085Subject length lower bound = 1 2086 2087/^[[:^cntrl:]]/IB 2088------------------------------------------------------------------ 2089 Bra 2090 ^ 2091 [ -~\x80-\xff] (neg) 2092 Ket 2093 End 2094------------------------------------------------------------------ 2095Capture group count = 0 2096Compile options: <none> 2097Overall options: anchored 2098Starting code units: \x20 ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 2099 9 : ; < = > ? @ 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 Z [ \ ] 2100 ^ _ ` 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 z { | } ~ \x80 \x81 2101 \x82 \x83 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 2102 \x91 \x92 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f 2103 \xa0 \xa1 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae 2104 \xaf \xb0 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd 2105 \xbe \xbf \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc 2106 \xcd \xce \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb 2107 \xdc \xdd \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea 2108 \xeb \xec \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 2109 \xfa \xfb \xfc \xfd \xfe \xff 2110Subject length lower bound = 1 2111 2112/^[12[:^digit:]]/IB 2113------------------------------------------------------------------ 2114 Bra 2115 ^ 2116 [\x00-/12:-\xff] (neg) 2117 Ket 2118 End 2119------------------------------------------------------------------ 2120Capture group count = 0 2121Compile options: <none> 2122Overall options: anchored 2123Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 2124 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 2125 \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / 1 2 : ; < 2126 = > ? @ 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 Z [ \ ] ^ _ ` a 2127 b c d 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 2128 \x83 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 \x91 2129 \x92 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f \xa0 2130 \xa1 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae \xaf 2131 \xb0 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd \xbe 2132 \xbf \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc \xcd 2133 \xce \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb \xdc 2134 \xdd \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea \xeb 2135 \xec \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 \xfa 2136 \xfb \xfc \xfd \xfe \xff 2137Subject length lower bound = 1 2138 2139/^[[:^blank:]]/IB 2140------------------------------------------------------------------ 2141 Bra 2142 ^ 2143 [\x00-\x08\x0a-\x1f!-\xff] (neg) 2144 Ket 2145 End 2146------------------------------------------------------------------ 2147Capture group count = 0 2148Compile options: <none> 2149Overall options: anchored 2150Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0a \x0b 2151 \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a 2152 \x1b \x1c \x1d \x1e \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 2153 : ; < = > ? @ 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 Z [ \ ] ^ 2154 _ ` 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 z { | } ~ \x7f \x80 2155 \x81 \x82 \x83 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f 2156 \x90 \x91 \x92 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e 2157 \x9f \xa0 \xa1 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad 2158 \xae \xaf \xb0 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc 2159 \xbd \xbe \xbf \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb 2160 \xcc \xcd \xce \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda 2161 \xdb \xdc \xdd \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 2162 \xea \xeb \xec \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 2163 \xf9 \xfa \xfb \xfc \xfd \xfe \xff 2164Subject length lower bound = 1 2165 2166/[01[:alpha:]%]/IB 2167------------------------------------------------------------------ 2168 Bra 2169 [%01A-Za-z] 2170 Ket 2171 End 2172------------------------------------------------------------------ 2173Capture group count = 0 2174Starting code units: % 0 1 A B C D E F G H I J K L M N O P Q R S T U V W 2175 X Y Z 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 z 2176Subject length lower bound = 1 2177 2178/[[.ch.]]/I 2179Failed: error 113 at offset 1: POSIX collating elements are not supported 2180 2181/[[=ch=]]/I 2182Failed: error 113 at offset 1: POSIX collating elements are not supported 2183 2184/[[:rhubarb:]]/I 2185Failed: error 130 at offset 3: unknown POSIX class name 2186 2187/[[:upper:]]/Ii 2188Capture group count = 0 2189Options: caseless 2190Starting code units: 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 Z 2191 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 z 2192Subject length lower bound = 1 2193 A 2194 0: A 2195 a 2196 0: a 2197 2198/[[:lower:]]/Ii 2199Capture group count = 0 2200Options: caseless 2201Starting code units: 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 Z 2202 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 z 2203Subject length lower bound = 1 2204 A 2205 0: A 2206 a 2207 0: a 2208 2209/((?-i)[[:lower:]])[[:lower:]]/Ii 2210Capture group count = 1 2211Options: caseless 2212Starting code units: 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 z 2213Subject length lower bound = 2 2214 ab 2215 0: ab 2216 1: a 2217 aB 2218 0: aB 2219 1: a 2220\= Expect no match 2221 Ab 2222No match 2223 AB 2224No match 2225 2226/[\200-\110]/I 2227Failed: error 108 at offset 9: range out of order in character class 2228 2229/^(?(0)f|b)oo/I 2230Failed: error 115 at offset 5: reference to non-existent subpattern 2231 2232# This one's here because of the large output vector needed 2233 2234/(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\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)/I 2235Capture group count = 271 2236Max back reference = 270 2237Starting code units: 0 1 2 3 4 5 6 7 8 9 2238Subject length lower bound = 1 2239 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\=ovector=300 2240 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 2241 1: 1 2242 2: 2 2243 3: 3 2244 4: 4 2245 5: 5 2246 6: 6 2247 7: 7 2248 8: 8 2249 9: 9 225010: 10 225111: 11 225212: 12 225313: 13 225414: 14 225515: 15 225616: 16 225717: 17 225818: 18 225919: 19 226020: 20 226121: 21 226222: 22 226323: 23 226424: 24 226525: 25 226626: 26 226727: 27 226828: 28 226929: 29 227030: 30 227131: 31 227232: 32 227333: 33 227434: 34 227535: 35 227636: 36 227737: 37 227838: 38 227939: 39 228040: 40 228141: 41 228242: 42 228343: 43 228444: 44 228545: 45 228646: 46 228747: 47 228848: 48 228949: 49 229050: 50 229151: 51 229252: 52 229353: 53 229454: 54 229555: 55 229656: 56 229757: 57 229858: 58 229959: 59 230060: 60 230161: 61 230262: 62 230363: 63 230464: 64 230565: 65 230666: 66 230767: 67 230868: 68 230969: 69 231070: 70 231171: 71 231272: 72 231373: 73 231474: 74 231575: 75 231676: 76 231777: 77 231878: 78 231979: 79 232080: 80 232181: 81 232282: 82 232383: 83 232484: 84 232585: 85 232686: 86 232787: 87 232888: 88 232989: 89 233090: 90 233191: 91 233292: 92 233393: 93 233494: 94 233595: 95 233696: 96 233797: 97 233898: 98 233999: 99 2340100: 100 2341101: 101 2342102: 102 2343103: 103 2344104: 104 2345105: 105 2346106: 106 2347107: 107 2348108: 108 2349109: 109 2350110: 110 2351111: 111 2352112: 112 2353113: 113 2354114: 114 2355115: 115 2356116: 116 2357117: 117 2358118: 118 2359119: 119 2360120: 120 2361121: 121 2362122: 122 2363123: 123 2364124: 124 2365125: 125 2366126: 126 2367127: 127 2368128: 128 2369129: 129 2370130: 130 2371131: 131 2372132: 132 2373133: 133 2374134: 134 2375135: 135 2376136: 136 2377137: 137 2378138: 138 2379139: 139 2380140: 140 2381141: 141 2382142: 142 2383143: 143 2384144: 144 2385145: 145 2386146: 146 2387147: 147 2388148: 148 2389149: 149 2390150: 150 2391151: 151 2392152: 152 2393153: 153 2394154: 154 2395155: 155 2396156: 156 2397157: 157 2398158: 158 2399159: 159 2400160: 160 2401161: 161 2402162: 162 2403163: 163 2404164: 164 2405165: 165 2406166: 166 2407167: 167 2408168: 168 2409169: 169 2410170: 170 2411171: 171 2412172: 172 2413173: 173 2414174: 174 2415175: 175 2416176: 176 2417177: 177 2418178: 178 2419179: 179 2420180: 180 2421181: 181 2422182: 182 2423183: 183 2424184: 184 2425185: 185 2426186: 186 2427187: 187 2428188: 188 2429189: 189 2430190: 190 2431191: 191 2432192: 192 2433193: 193 2434194: 194 2435195: 195 2436196: 196 2437197: 197 2438198: 198 2439199: 199 2440200: 200 2441201: 201 2442202: 202 2443203: 203 2444204: 204 2445205: 205 2446206: 206 2447207: 207 2448208: 208 2449209: 209 2450210: 210 2451211: 211 2452212: 212 2453213: 213 2454214: 214 2455215: 215 2456216: 216 2457217: 217 2458218: 218 2459219: 219 2460220: 220 2461221: 221 2462222: 222 2463223: 223 2464224: 224 2465225: 225 2466226: 226 2467227: 227 2468228: 228 2469229: 229 2470230: 230 2471231: 231 2472232: 232 2473233: 233 2474234: 234 2475235: 235 2476236: 236 2477237: 237 2478238: 238 2479239: 239 2480240: 240 2481241: 241 2482242: 242 2483243: 243 2484244: 244 2485245: 245 2486246: 246 2487247: 247 2488248: 248 2489249: 249 2490250: 250 2491251: 251 2492252: 252 2493253: 253 2494254: 254 2495255: 255 2496256: 256 2497257: 257 2498258: 258 2499259: 259 2500260: 260 2501261: 261 2502262: 262 2503263: 263 2504264: 264 2505265: 265 2506266: 266 2507267: 267 2508268: 268 2509269: 269 2510270: ABC 2511271: ABC 2512 2513# This one's here because Perl does this differently and PCRE2 can't at present 2514 2515/(main(O)?)+/I 2516Capture group count = 2 2517First code unit = 'm' 2518Last code unit = 'n' 2519Subject length lower bound = 4 2520 mainmain 2521 0: mainmain 2522 1: main 2523 mainOmain 2524 0: mainOmain 2525 1: main 2526 2: O 2527 2528# These are all cases where Perl does it differently (nested captures) 2529 2530/^(a(b)?)+$/I 2531Capture group count = 2 2532Compile options: <none> 2533Overall options: anchored 2534First code unit = 'a' 2535Subject length lower bound = 1 2536 aba 2537 0: aba 2538 1: a 2539 2: b 2540 2541/^(aa(bb)?)+$/I 2542Capture group count = 2 2543Compile options: <none> 2544Overall options: anchored 2545First code unit = 'a' 2546Subject length lower bound = 2 2547 aabbaa 2548 0: aabbaa 2549 1: aa 2550 2: bb 2551 2552/^(aa|aa(bb))+$/I 2553Capture group count = 2 2554Compile options: <none> 2555Overall options: anchored 2556First code unit = 'a' 2557Subject length lower bound = 2 2558 aabbaa 2559 0: aabbaa 2560 1: aa 2561 2: bb 2562 2563/^(aa(bb)??)+$/I 2564Capture group count = 2 2565Compile options: <none> 2566Overall options: anchored 2567First code unit = 'a' 2568Subject length lower bound = 2 2569 aabbaa 2570 0: aabbaa 2571 1: aa 2572 2: bb 2573 2574/^(?:aa(bb)?)+$/I 2575Capture group count = 1 2576Compile options: <none> 2577Overall options: anchored 2578First code unit = 'a' 2579Subject length lower bound = 2 2580 aabbaa 2581 0: aabbaa 2582 1: bb 2583 2584/^(aa(b(b))?)+$/I 2585Capture group count = 3 2586Compile options: <none> 2587Overall options: anchored 2588First code unit = 'a' 2589Subject length lower bound = 2 2590 aabbaa 2591 0: aabbaa 2592 1: aa 2593 2: bb 2594 3: b 2595 2596/^(?:aa(b(b))?)+$/I 2597Capture group count = 2 2598Compile options: <none> 2599Overall options: anchored 2600First code unit = 'a' 2601Subject length lower bound = 2 2602 aabbaa 2603 0: aabbaa 2604 1: bb 2605 2: b 2606 2607/^(?:aa(b(?:b))?)+$/I 2608Capture group count = 1 2609Compile options: <none> 2610Overall options: anchored 2611First code unit = 'a' 2612Subject length lower bound = 2 2613 aabbaa 2614 0: aabbaa 2615 1: bb 2616 2617/^(?:aa(bb(?:b))?)+$/I 2618Capture group count = 1 2619Compile options: <none> 2620Overall options: anchored 2621First code unit = 'a' 2622Subject length lower bound = 2 2623 aabbbaa 2624 0: aabbbaa 2625 1: bbb 2626 2627/^(?:aa(b(?:bb))?)+$/I 2628Capture group count = 1 2629Compile options: <none> 2630Overall options: anchored 2631First code unit = 'a' 2632Subject length lower bound = 2 2633 aabbbaa 2634 0: aabbbaa 2635 1: bbb 2636 2637/^(?:aa(?:b(b))?)+$/I 2638Capture group count = 1 2639Compile options: <none> 2640Overall options: anchored 2641First code unit = 'a' 2642Subject length lower bound = 2 2643 aabbaa 2644 0: aabbaa 2645 1: b 2646 2647/^(?:aa(?:b(bb))?)+$/I 2648Capture group count = 1 2649Compile options: <none> 2650Overall options: anchored 2651First code unit = 'a' 2652Subject length lower bound = 2 2653 aabbbaa 2654 0: aabbbaa 2655 1: bb 2656 2657/^(aa(b(bb))?)+$/I 2658Capture group count = 3 2659Compile options: <none> 2660Overall options: anchored 2661First code unit = 'a' 2662Subject length lower bound = 2 2663 aabbbaa 2664 0: aabbbaa 2665 1: aa 2666 2: bbb 2667 3: bb 2668 2669/^(aa(bb(bb))?)+$/I 2670Capture group count = 3 2671Compile options: <none> 2672Overall options: anchored 2673First code unit = 'a' 2674Subject length lower bound = 2 2675 aabbbbaa 2676 0: aabbbbaa 2677 1: aa 2678 2: bbbb 2679 3: bb 2680 2681# ---------------- 2682 2683/#/IBx 2684------------------------------------------------------------------ 2685 Bra 2686 Ket 2687 End 2688------------------------------------------------------------------ 2689Capture group count = 0 2690May match empty string 2691Options: extended 2692Subject length lower bound = 0 2693 2694/a#/IBx 2695------------------------------------------------------------------ 2696 Bra 2697 a 2698 Ket 2699 End 2700------------------------------------------------------------------ 2701Capture group count = 0 2702Options: extended 2703First code unit = 'a' 2704Subject length lower bound = 1 2705 2706/[\s]/IB 2707------------------------------------------------------------------ 2708 Bra 2709 [\x09-\x0d ] 2710 Ket 2711 End 2712------------------------------------------------------------------ 2713Capture group count = 0 2714Starting code units: \x09 \x0a \x0b \x0c \x0d \x20 2715Subject length lower bound = 1 2716 2717/[\S]/IB 2718------------------------------------------------------------------ 2719 Bra 2720 [\x00-\x08\x0e-\x1f!-\xff] (neg) 2721 Ket 2722 End 2723------------------------------------------------------------------ 2724Capture group count = 0 2725Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x0e \x0f 2726 \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 \x1a \x1b \x1c \x1d \x1e 2727 \x1f ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C 2728 D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e f g h 2729 i j k l m n o p q r s t u v w x y z { | } ~ \x7f \x80 \x81 \x82 \x83 \x84 2730 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 \x91 \x92 \x93 2731 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f \xa0 \xa1 \xa2 2732 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae \xaf \xb0 \xb1 2733 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd \xbe \xbf \xc0 2734 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc \xcd \xce \xcf 2735 \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb \xdc \xdd \xde 2736 \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea \xeb \xec \xed 2737 \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 \xfa \xfb \xfc 2738 \xfd \xfe \xff 2739Subject length lower bound = 1 2740 2741/a(?i)b/IB 2742------------------------------------------------------------------ 2743 Bra 2744 a 2745 /i b 2746 Ket 2747 End 2748------------------------------------------------------------------ 2749Capture group count = 0 2750First code unit = 'a' 2751Last code unit = 'b' (caseless) 2752Subject length lower bound = 2 2753 ab 2754 0: ab 2755 aB 2756 0: aB 2757\= Expect no match 2758 AB 2759No match 2760 2761/(a(?i)b)/IB 2762------------------------------------------------------------------ 2763 Bra 2764 CBra 1 2765 a 2766 /i b 2767 Ket 2768 Ket 2769 End 2770------------------------------------------------------------------ 2771Capture group count = 1 2772First code unit = 'a' 2773Last code unit = 'b' (caseless) 2774Subject length lower bound = 2 2775 ab 2776 0: ab 2777 1: ab 2778 aB 2779 0: aB 2780 1: aB 2781\= Expect no match 2782 AB 2783No match 2784 2785/ (?i)abc/IBx 2786------------------------------------------------------------------ 2787 Bra 2788 /i abc 2789 Ket 2790 End 2791------------------------------------------------------------------ 2792Capture group count = 0 2793Options: extended 2794First code unit = 'a' (caseless) 2795Last code unit = 'c' (caseless) 2796Subject length lower bound = 3 2797 2798/#this is a comment 2799 (?i)abc/IBx 2800------------------------------------------------------------------ 2801 Bra 2802 /i abc 2803 Ket 2804 End 2805------------------------------------------------------------------ 2806Capture group count = 0 2807Options: extended 2808First code unit = 'a' (caseless) 2809Last code unit = 'c' (caseless) 2810Subject length lower bound = 3 2811 2812/123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/IB 2813------------------------------------------------------------------ 2814 Bra 2815 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 2816 Ket 2817 End 2818------------------------------------------------------------------ 2819Capture group count = 0 2820First code unit = '1' 2821Last code unit = '0' 2822Subject length lower bound = 300 2823 2824/\Q123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/IB 2825------------------------------------------------------------------ 2826 Bra 2827 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 2828 Ket 2829 End 2830------------------------------------------------------------------ 2831Capture group count = 0 2832First code unit = '1' 2833Last code unit = '0' 2834Subject length lower bound = 300 2835 2836/\Q\E/IB 2837------------------------------------------------------------------ 2838 Bra 2839 Ket 2840 End 2841------------------------------------------------------------------ 2842Capture group count = 0 2843May match empty string 2844Subject length lower bound = 0 2845 \ 2846 0: 2847 2848/\Q\Ex/IB 2849------------------------------------------------------------------ 2850 Bra 2851 x 2852 Ket 2853 End 2854------------------------------------------------------------------ 2855Capture group count = 0 2856First code unit = 'x' 2857Subject length lower bound = 1 2858 2859/ \Q\E/IB 2860------------------------------------------------------------------ 2861 Bra 2862 2863 Ket 2864 End 2865------------------------------------------------------------------ 2866Capture group count = 0 2867First code unit = ' ' 2868Subject length lower bound = 1 2869 2870/a\Q\E/IB 2871------------------------------------------------------------------ 2872 Bra 2873 a 2874 Ket 2875 End 2876------------------------------------------------------------------ 2877Capture group count = 0 2878First code unit = 'a' 2879Subject length lower bound = 1 2880 abc 2881 0: a 2882 bca 2883 0: a 2884 bac 2885 0: a 2886 2887/a\Q\Eb/IB 2888------------------------------------------------------------------ 2889 Bra 2890 ab 2891 Ket 2892 End 2893------------------------------------------------------------------ 2894Capture group count = 0 2895First code unit = 'a' 2896Last code unit = 'b' 2897Subject length lower bound = 2 2898 abc 2899 0: ab 2900 2901/\Q\Eabc/IB 2902------------------------------------------------------------------ 2903 Bra 2904 abc 2905 Ket 2906 End 2907------------------------------------------------------------------ 2908Capture group count = 0 2909First code unit = 'a' 2910Last code unit = 'c' 2911Subject length lower bound = 3 2912 2913/x*+\w/IB 2914------------------------------------------------------------------ 2915 Bra 2916 x*+ 2917 \w 2918 Ket 2919 End 2920------------------------------------------------------------------ 2921Capture group count = 0 2922Starting code units: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 2923 Q R S T U V W X Y Z _ 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 z 2924Subject length lower bound = 1 2925\= Expect no match 2926 xxxxx 2927No match 2928 2929/x?+/IB 2930------------------------------------------------------------------ 2931 Bra 2932 x?+ 2933 Ket 2934 End 2935------------------------------------------------------------------ 2936Capture group count = 0 2937May match empty string 2938Subject length lower bound = 0 2939 2940/x++/IB 2941------------------------------------------------------------------ 2942 Bra 2943 x++ 2944 Ket 2945 End 2946------------------------------------------------------------------ 2947Capture group count = 0 2948First code unit = 'x' 2949Subject length lower bound = 1 2950 2951/x{1,3}+/B,no_auto_possess 2952------------------------------------------------------------------ 2953 Bra 2954 x 2955 x{0,2}+ 2956 Ket 2957 End 2958------------------------------------------------------------------ 2959 2960/x{1,3}+/Bi,no_auto_possess 2961------------------------------------------------------------------ 2962 Bra 2963 /i x 2964 /i x{0,2}+ 2965 Ket 2966 End 2967------------------------------------------------------------------ 2968 2969/[^x]{1,3}+/B,no_auto_possess 2970------------------------------------------------------------------ 2971 Bra 2972 [^x] 2973 [^x]{0,2}+ 2974 Ket 2975 End 2976------------------------------------------------------------------ 2977 2978/[^x]{1,3}+/Bi,no_auto_possess 2979------------------------------------------------------------------ 2980 Bra 2981 /i [^x] 2982 /i [^x]{0,2}+ 2983 Ket 2984 End 2985------------------------------------------------------------------ 2986 2987/(x)*+/IB 2988------------------------------------------------------------------ 2989 Bra 2990 Braposzero 2991 CBraPos 1 2992 x 2993 KetRpos 2994 Ket 2995 End 2996------------------------------------------------------------------ 2997Capture group count = 1 2998May match empty string 2999Subject length lower bound = 0 3000 3001/^(\w++|\s++)*$/I 3002Capture group count = 1 3003May match empty string 3004Compile options: <none> 3005Overall options: anchored 3006Subject length lower bound = 0 3007 now is the time for all good men to come to the aid of the party 3008 0: now is the time for all good men to come to the aid of the party 3009 1: party 3010\= Expect no match 3011 this is not a line with only words and spaces! 3012No match 3013 3014/(\d++)(\w)/I 3015Capture group count = 2 3016Starting code units: 0 1 2 3 4 5 6 7 8 9 3017Subject length lower bound = 2 3018 12345a 3019 0: 12345a 3020 1: 12345 3021 2: a 3022\= Expect no match 3023 12345+ 3024No match 3025 3026/a++b/I 3027Capture group count = 0 3028First code unit = 'a' 3029Last code unit = 'b' 3030Subject length lower bound = 2 3031 aaab 3032 0: aaab 3033 3034/(a++b)/I 3035Capture group count = 1 3036First code unit = 'a' 3037Last code unit = 'b' 3038Subject length lower bound = 2 3039 aaab 3040 0: aaab 3041 1: aaab 3042 3043/(a++)b/I 3044Capture group count = 1 3045First code unit = 'a' 3046Last code unit = 'b' 3047Subject length lower bound = 2 3048 aaab 3049 0: aaab 3050 1: aaa 3051 3052/([^()]++|\([^()]*\))+/I 3053Capture group count = 1 3054Starting code units: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 3055 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 3056 \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( * + , - . / 0 1 2 3 4 5 3057 6 7 8 9 : ; < = > ? @ 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 Z 3058 [ \ ] ^ _ ` 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 z { | } ~ \x7f 3059 \x80 \x81 \x82 \x83 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e 3060 \x8f \x90 \x91 \x92 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d 3061 \x9e \x9f \xa0 \xa1 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac 3062 \xad \xae \xaf \xb0 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb 3063 \xbc \xbd \xbe \xbf \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca 3064 \xcb \xcc \xcd \xce \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 3065 \xda \xdb \xdc \xdd \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 3066 \xe9 \xea \xeb \xec \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 3067 \xf8 \xf9 \xfa \xfb \xfc \xfd \xfe \xff 3068Subject length lower bound = 1 3069 ((abc(ade)ufh()()x 3070 0: abc(ade)ufh()()x 3071 1: x 3072 3073/\(([^()]++|\([^()]+\))+\)/I 3074Capture group count = 1 3075First code unit = '(' 3076Last code unit = ')' 3077Subject length lower bound = 3 3078 (abc) 3079 0: (abc) 3080 1: abc 3081 (abc(def)xyz) 3082 0: (abc(def)xyz) 3083 1: xyz 3084\= Expect no match 3085 ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 3086No match 3087 3088/(abc){1,3}+/IB 3089------------------------------------------------------------------ 3090 Bra 3091 Once 3092 CBra 1 3093 abc 3094 Ket 3095 Brazero 3096 Bra 3097 CBra 1 3098 abc 3099 Ket 3100 Brazero 3101 CBra 1 3102 abc 3103 Ket 3104 Ket 3105 Ket 3106 Ket 3107 End 3108------------------------------------------------------------------ 3109Capture group count = 1 3110First code unit = 'a' 3111Last code unit = 'c' 3112Subject length lower bound = 3 3113 3114/a+?+/I 3115Failed: error 109 at offset 3: quantifier does not follow a repeatable item 3116 3117/a{2,3}?+b/I 3118Failed: error 109 at offset 7: quantifier does not follow a repeatable item 3119 3120/(?U)a+?+/I 3121Failed: error 109 at offset 7: quantifier does not follow a repeatable item 3122 3123/a{2,3}?+b/I,ungreedy 3124Failed: error 109 at offset 7: quantifier does not follow a repeatable item 3125 3126/x(?U)a++b/IB 3127------------------------------------------------------------------ 3128 Bra 3129 x 3130 a++ 3131 b 3132 Ket 3133 End 3134------------------------------------------------------------------ 3135Capture group count = 0 3136First code unit = 'x' 3137Last code unit = 'b' 3138Subject length lower bound = 3 3139 xaaaab 3140 0: xaaaab 3141 3142/(?U)xa++b/IB 3143------------------------------------------------------------------ 3144 Bra 3145 x 3146 a++ 3147 b 3148 Ket 3149 End 3150------------------------------------------------------------------ 3151Capture group count = 0 3152First code unit = 'x' 3153Last code unit = 'b' 3154Subject length lower bound = 3 3155 xaaaab 3156 0: xaaaab 3157 3158/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/IB 3159------------------------------------------------------------------ 3160 Bra 3161 ^ 3162 CBra 1 3163 CBra 2 3164 a+ 3165 Ket 3166 CBra 3 3167 [ab]+? 3168 Ket 3169 CBra 4 3170 [bc]+ 3171 Ket 3172 CBra 5 3173 \w*+ 3174 Ket 3175 Ket 3176 Ket 3177 End 3178------------------------------------------------------------------ 3179Capture group count = 5 3180Compile options: <none> 3181Overall options: anchored 3182First code unit = 'a' 3183Subject length lower bound = 3 3184 3185/^x(?U)a+b/IB 3186------------------------------------------------------------------ 3187 Bra 3188 ^ 3189 x 3190 a++ 3191 b 3192 Ket 3193 End 3194------------------------------------------------------------------ 3195Capture group count = 0 3196Compile options: <none> 3197Overall options: anchored 3198First code unit = 'x' 3199Last code unit = 'b' 3200Subject length lower bound = 3 3201 3202/^x(?U)(a+)b/IB 3203------------------------------------------------------------------ 3204 Bra 3205 ^ 3206 x 3207 CBra 1 3208 a+? 3209 Ket 3210 b 3211 Ket 3212 End 3213------------------------------------------------------------------ 3214Capture group count = 1 3215Compile options: <none> 3216Overall options: anchored 3217First code unit = 'x' 3218Last code unit = 'b' 3219Subject length lower bound = 3 3220 3221/[.x.]/I 3222Failed: error 113 at offset 0: POSIX collating elements are not supported 3223 3224/[=x=]/I 3225Failed: error 113 at offset 0: POSIX collating elements are not supported 3226 3227/[:x:]/I 3228Failed: error 112 at offset 0: POSIX named classes are supported only within a class 3229 3230/\F/I 3231Failed: error 137 at offset 2: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u 3232 3233/\l/I 3234Failed: error 137 at offset 2: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u 3235 3236/\L/I 3237Failed: error 137 at offset 2: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u 3238 3239/\N{name}/I 3240Failed: error 137 at offset 2: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u 3241 3242/\u/I 3243Failed: error 137 at offset 2: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u 3244 3245/\U/I 3246Failed: error 137 at offset 2: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u 3247 3248/a{1,3}b/ungreedy 3249 ab 3250 0: ab 3251 3252/[/I 3253Failed: error 106 at offset 1: missing terminating ] for character class 3254 3255/[a-/I 3256Failed: error 106 at offset 3: missing terminating ] for character class 3257 3258/[[:space:]/I 3259Failed: error 106 at offset 10: missing terminating ] for character class 3260 3261/[\s]/IB 3262------------------------------------------------------------------ 3263 Bra 3264 [\x09-\x0d ] 3265 Ket 3266 End 3267------------------------------------------------------------------ 3268Capture group count = 0 3269Starting code units: \x09 \x0a \x0b \x0c \x0d \x20 3270Subject length lower bound = 1 3271 3272/[[:space:]]/IB 3273------------------------------------------------------------------ 3274 Bra 3275 [\x09-\x0d ] 3276 Ket 3277 End 3278------------------------------------------------------------------ 3279Capture group count = 0 3280Starting code units: \x09 \x0a \x0b \x0c \x0d \x20 3281Subject length lower bound = 1 3282 3283/[[:space:]abcde]/IB 3284------------------------------------------------------------------ 3285 Bra 3286 [\x09-\x0d a-e] 3287 Ket 3288 End 3289------------------------------------------------------------------ 3290Capture group count = 0 3291Starting code units: \x09 \x0a \x0b \x0c \x0d \x20 a b c d e 3292Subject length lower bound = 1 3293 3294/< (?: (?(R) \d++ | [^<>]*+) | (?R)) * >/Ix 3295Capture group count = 0 3296Options: extended 3297First code unit = '<' 3298Last code unit = '>' 3299Subject length lower bound = 2 3300 <> 3301 0: <> 3302 <abcd> 3303 0: <abcd> 3304 <abc <123> hij> 3305 0: <abc <123> hij> 3306 <abc <def> hij> 3307 0: <def> 3308 <abc<>def> 3309 0: <abc<>def> 3310 <abc<> 3311 0: <> 3312\= Expect no match 3313 <abc 3314No match 3315 3316/8J\$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/IB 3317------------------------------------------------------------------ 3318 Bra 3319 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 3320 \b 3321 Ket 3322 End 3323------------------------------------------------------------------ 3324Capture group count = 0 3325Max lookbehind = 1 3326First code unit = '8' 3327Last code unit = 'X' 3328Subject length lower bound = 409 3329 3330/\$\<\.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/IB 3331------------------------------------------------------------------ 3332 Bra 3333 $<.X+ix[d1b!H#?vV0vrK:ZH1=2M>iV;?aPhFB<*vW@QW@sO9}cfZA-i'w%hKd6gt1UJP,15_#QY$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 3334 \b 3335 Ket 3336 End 3337------------------------------------------------------------------ 3338Capture group count = 0 3339Max lookbehind = 1 3340First code unit = '$' 3341Last code unit = 'X' 3342Subject length lower bound = 404 3343 3344/(.*)\d+\1/I 3345Capture group count = 1 3346Max back reference = 1 3347Subject length lower bound = 1 3348 3349/(.*)\d+/I 3350Capture group count = 1 3351First code unit at start or follows newline 3352Subject length lower bound = 1 3353 3354/(.*)\d+\1/Is 3355Capture group count = 1 3356Max back reference = 1 3357Options: dotall 3358Subject length lower bound = 1 3359 3360/(.*)\d+/Is 3361Capture group count = 1 3362Compile options: dotall 3363Overall options: anchored dotall 3364Subject length lower bound = 1 3365 3366/(.*(xyz))\d+\2/I 3367Capture group count = 2 3368Max back reference = 2 3369First code unit at start or follows newline 3370Last code unit = 'z' 3371Subject length lower bound = 7 3372 3373/((.*))\d+\1/I 3374Capture group count = 2 3375Max back reference = 1 3376Subject length lower bound = 1 3377 abc123bc 3378 0: bc123bc 3379 1: bc 3380 2: bc 3381 3382/a[b]/I 3383Capture group count = 0 3384First code unit = 'a' 3385Last code unit = 'b' 3386Subject length lower bound = 2 3387 3388/(?=a).*/I 3389Capture group count = 0 3390May match empty string 3391First code unit = 'a' 3392Subject length lower bound = 1 3393 3394/(?=abc).xyz/Ii 3395Capture group count = 0 3396Options: caseless 3397First code unit = 'a' (caseless) 3398Last code unit = 'z' (caseless) 3399Subject length lower bound = 4 3400 3401/(?=abc)(?i).xyz/I 3402Capture group count = 0 3403First code unit = 'a' 3404Last code unit = 'z' (caseless) 3405Subject length lower bound = 4 3406 3407/(?=a)(?=b)/I 3408Capture group count = 0 3409May match empty string 3410First code unit = 'a' 3411Subject length lower bound = 1 3412 3413/(?=.)a/I 3414Capture group count = 0 3415First code unit = 'a' 3416Subject length lower bound = 1 3417 3418/((?=abcda)a)/I 3419Capture group count = 1 3420First code unit = 'a' 3421Last code unit = 'a' 3422Subject length lower bound = 2 3423 3424/((?=abcda)ab)/I 3425Capture group count = 1 3426First code unit = 'a' 3427Last code unit = 'b' 3428Subject length lower bound = 2 3429 3430/()a/I 3431Capture group count = 1 3432First code unit = 'a' 3433Subject length lower bound = 1 3434 3435/(?:(?=.)|(?<!x))a/I 3436Capture group count = 0 3437Max lookbehind = 1 3438First code unit = 'a' 3439Subject length lower bound = 1 3440 3441/(?(1)ab|ac)(.)/I 3442Capture group count = 1 3443Max back reference = 1 3444First code unit = 'a' 3445Subject length lower bound = 3 3446 3447/(?(1)abz|acz)(.)/I 3448Capture group count = 1 3449Max back reference = 1 3450First code unit = 'a' 3451Last code unit = 'z' 3452Subject length lower bound = 4 3453 3454/(?(1)abz)(.)/I 3455Capture group count = 1 3456Max back reference = 1 3457Subject length lower bound = 1 3458 3459/(?(1)abz)(1)23/I 3460Capture group count = 1 3461Max back reference = 1 3462Last code unit = '3' 3463Subject length lower bound = 3 3464 3465/(a)+/I 3466Capture group count = 1 3467First code unit = 'a' 3468Subject length lower bound = 1 3469 3470/(a){2,3}/I 3471Capture group count = 1 3472First code unit = 'a' 3473Last code unit = 'a' 3474Subject length lower bound = 2 3475 3476/(a)*/I 3477Capture group count = 1 3478May match empty string 3479Subject length lower bound = 0 3480 3481/[a]/I 3482Capture group count = 0 3483First code unit = 'a' 3484Subject length lower bound = 1 3485 3486/[ab]/I 3487Capture group count = 0 3488Starting code units: a b 3489Subject length lower bound = 1 3490 3491/[ab]/I 3492Capture group count = 0 3493Starting code units: a b 3494Subject length lower bound = 1 3495 3496/[^a]/I 3497Capture group count = 0 3498Subject length lower bound = 1 3499 3500/\d456/I 3501Capture group count = 0 3502Starting code units: 0 1 2 3 4 5 6 7 8 9 3503Last code unit = '6' 3504Subject length lower bound = 4 3505 3506/\d456/I 3507Capture group count = 0 3508Starting code units: 0 1 2 3 4 5 6 7 8 9 3509Last code unit = '6' 3510Subject length lower bound = 4 3511 3512/a^b/I 3513Capture group count = 0 3514First code unit = 'a' 3515Last code unit = 'b' 3516Subject length lower bound = 2 3517 3518/^a/Im 3519Capture group count = 0 3520Options: multiline 3521First code unit at start or follows newline 3522Last code unit = 'a' 3523Subject length lower bound = 1 3524 abcde 3525 0: a 3526 xy\nabc 3527 0: a 3528\= Expect no match 3529 xyabc 3530No match 3531 3532/c|abc/I 3533Capture group count = 0 3534Starting code units: a c 3535Last code unit = 'c' 3536Subject length lower bound = 1 3537 3538/(?i)[ab]/I 3539Capture group count = 0 3540Starting code units: A B a b 3541Subject length lower bound = 1 3542 3543/[ab](?i)cd/I 3544Capture group count = 0 3545Starting code units: a b 3546Last code unit = 'd' (caseless) 3547Subject length lower bound = 3 3548 3549/abc(?C)def/I 3550Capture group count = 0 3551First code unit = 'a' 3552Last code unit = 'f' 3553Subject length lower bound = 6 3554 abcdef 3555--->abcdef 3556 0 ^ ^ d 3557 0: abcdef 3558 1234abcdef 3559--->1234abcdef 3560 0 ^ ^ d 3561 0: abcdef 3562\= Expect no match 3563 abcxyz 3564No match 3565 abcxyzf 3566--->abcxyzf 3567 0 ^ ^ d 3568No match 3569 3570/abc(?C)de(?C1)f/I 3571Capture group count = 0 3572First code unit = 'a' 3573Last code unit = 'f' 3574Subject length lower bound = 6 3575 123abcdef 3576--->123abcdef 3577 0 ^ ^ d 3578 1 ^ ^ f 3579 0: abcdef 3580 3581/(?C1)\dabc(?C2)def/I 3582Capture group count = 0 3583Starting code units: 0 1 2 3 4 5 6 7 8 9 3584Last code unit = 'f' 3585Subject length lower bound = 7 3586 1234abcdef 3587--->1234abcdef 3588 1 ^ \d 3589 1 ^ \d 3590 1 ^ \d 3591 1 ^ \d 3592 2 ^ ^ d 3593 0: 4abcdef 3594\= Expect no match 3595 abcdef 3596No match 3597 3598/(?C1)\dabc(?C2)def/I 3599Capture group count = 0 3600Starting code units: 0 1 2 3 4 5 6 7 8 9 3601Last code unit = 'f' 3602Subject length lower bound = 7 3603 1234abcdef 3604--->1234abcdef 3605 1 ^ \d 3606 1 ^ \d 3607 1 ^ \d 3608 1 ^ \d 3609 2 ^ ^ d 3610 0: 4abcdef 3611\= Expect no match 3612 abcdef 3613No match 3614 3615/(?C255)ab/I 3616Capture group count = 0 3617First code unit = 'a' 3618Last code unit = 'b' 3619Subject length lower bound = 2 3620 3621/(?C256)ab/I 3622Failed: error 138 at offset 6: number after (?C is greater than 255 3623 3624/(?Cab)xx/I 3625Failed: error 182 at offset 3: unrecognized string delimiter follows (?C 3626 3627/(?C12vr)x/I 3628Failed: error 139 at offset 5: closing parenthesis for (?C expected 3629 3630/abc(?C)def/I 3631Capture group count = 0 3632First code unit = 'a' 3633Last code unit = 'f' 3634Subject length lower bound = 6 3635 \x83\x0\x61bcdef 3636--->\x83\x00abcdef 3637 0 ^ ^ d 3638 0: abcdef 3639 3640/(abc)(?C)de(?C1)f/I 3641Capture group count = 1 3642First code unit = 'a' 3643Last code unit = 'f' 3644Subject length lower bound = 6 3645 123abcdef 3646--->123abcdef 3647 0 ^ ^ d 3648 1 ^ ^ f 3649 0: abcdef 3650 1: abc 3651 123abcdef\=callout_capture 3652Callout 0: last capture = 1 3653 1: abc 3654--->123abcdef 3655 ^ ^ d 3656Callout 1: last capture = 1 3657 1: abc 3658--->123abcdef 3659 ^ ^ f 3660 0: abcdef 3661 1: abc 3662 123abcdefC-\=callout_none 3663 0: abcdef 3664 1: abc 3665\= Expect no match 3666 123abcdef\=callout_fail=1 3667--->123abcdef 3668 0 ^ ^ d 3669 1 ^ ^ f 3670No match 3671 3672/(?C0)(abc(?C1))*/I 3673Capture group count = 1 3674May match empty string 3675Subject length lower bound = 0 3676 abcabcabc 3677--->abcabcabc 3678 0 ^ ( 3679 1 ^ ^ )* 3680 1 ^ ^ )* 3681 1 ^ ^ )* 3682 0: abcabcabc 3683 1: abc 3684 abcabc\=callout_fail=1:4 3685--->abcabc 3686 0 ^ ( 3687 1 ^ ^ )* 3688 1 ^ ^ )* 3689 0: abcabc 3690 1: abc 3691 abcabcabc\=callout_fail=1:4 3692--->abcabcabc 3693 0 ^ ( 3694 1 ^ ^ )* 3695 1 ^ ^ )* 3696 1 ^ ^ )* 3697 0: abcabc 3698 1: abc 3699 3700/(\d{3}(?C))*/I 3701Capture group count = 1 3702May match empty string 3703Subject length lower bound = 0 3704 123\=callout_capture 3705Callout 0: last capture = 0 3706--->123 3707 ^ ^ )* 3708 0: 123 3709 1: 123 3710 123456\=callout_capture 3711Callout 0: last capture = 0 3712--->123456 3713 ^ ^ )* 3714Callout 0: last capture = 1 3715 1: 123 3716--->123456 3717 ^ ^ )* 3718 0: 123456 3719 1: 456 3720 123456789\=callout_capture 3721Callout 0: last capture = 0 3722--->123456789 3723 ^ ^ )* 3724Callout 0: last capture = 1 3725 1: 123 3726--->123456789 3727 ^ ^ )* 3728Callout 0: last capture = 1 3729 1: 456 3730--->123456789 3731 ^ ^ )* 3732 0: 123456789 3733 1: 789 3734 3735/((xyz)(?C)p|(?C1)xyzabc)/I 3736Capture group count = 2 3737First code unit = 'x' 3738Subject length lower bound = 4 3739 xyzabc\=callout_capture 3740Callout 0: last capture = 2 3741 1: <unset> 3742 2: xyz 3743--->xyzabc 3744 ^ ^ p 3745Callout 1: last capture = 0 3746--->xyzabc 3747 ^ x 3748 0: xyzabc 3749 1: xyzabc 3750 3751/(X)((xyz)(?C)p|(?C1)xyzabc)/I 3752Capture group count = 3 3753First code unit = 'X' 3754Last code unit = 'x' 3755Subject length lower bound = 5 3756 Xxyzabc\=callout_capture 3757Callout 0: last capture = 3 3758 1: X 3759 2: <unset> 3760 3: xyz 3761--->Xxyzabc 3762 ^ ^ p 3763Callout 1: last capture = 1 3764 1: X 3765--->Xxyzabc 3766 ^^ x 3767 0: Xxyzabc 3768 1: X 3769 2: xyzabc 3770 3771/(?=(abc))(?C)abcdef/I 3772Capture group count = 1 3773First code unit = 'a' 3774Last code unit = 'f' 3775Subject length lower bound = 6 3776 abcdef\=callout_capture 3777Callout 0: last capture = 1 3778 1: abc 3779--->abcdef 3780 ^ a 3781 0: abcdef 3782 1: abc 3783 3784/(?!(abc)(?C1)d)(?C2)abcxyz/I 3785Capture group count = 1 3786First code unit = 'a' 3787Last code unit = 'z' 3788Subject length lower bound = 6 3789 abcxyz\=callout_capture 3790Callout 1: last capture = 1 3791 1: abc 3792--->abcxyz 3793 ^ ^ d 3794Callout 2: last capture = 0 3795--->abcxyz 3796 ^ a 3797 0: abcxyz 3798 3799/(?<=(abc)(?C))xyz/I 3800Capture group count = 1 3801Max lookbehind = 3 3802First code unit = 'x' 3803Last code unit = 'z' 3804Subject length lower bound = 3 3805 abcxyz\=callout_capture 3806Callout 0: last capture = 1 3807 1: abc 3808--->abcxyz 3809 ^ ) 3810 0: xyz 3811 1: abc 3812 3813/a(b+)(c*)(?C1)/I 3814Capture group count = 2 3815First code unit = 'a' 3816Last code unit = 'b' 3817Subject length lower bound = 2 3818\= Expect no match 3819 abbbbbccc\=callout_data=1 3820--->abbbbbccc 3821 1 ^ ^ End of pattern 3822Callout data = 1 3823No match 3824 3825/a(b+?)(c*?)(?C1)/I 3826Capture group count = 2 3827First code unit = 'a' 3828Last code unit = 'b' 3829Subject length lower bound = 2 3830\= Expect no match 3831 abbbbbccc\=callout_data=1 3832--->abbbbbccc 3833 1 ^ ^ End of pattern 3834Callout data = 1 3835 1 ^ ^ End of pattern 3836Callout data = 1 3837 1 ^ ^ End of pattern 3838Callout data = 1 3839 1 ^ ^ End of pattern 3840Callout data = 1 3841 1 ^ ^ End of pattern 3842Callout data = 1 3843 1 ^ ^ End of pattern 3844Callout data = 1 3845 1 ^ ^ End of pattern 3846Callout data = 1 3847 1 ^ ^ End of pattern 3848Callout data = 1 3849No match 3850 3851/(?C)abc/I 3852Capture group count = 0 3853First code unit = 'a' 3854Last code unit = 'c' 3855Subject length lower bound = 3 3856 3857/(?C)^abc/I 3858Capture group count = 0 3859Compile options: <none> 3860Overall options: anchored 3861First code unit = 'a' 3862Subject length lower bound = 3 3863 3864/(?C)a|b/I 3865Capture group count = 0 3866Starting code units: a b 3867Subject length lower bound = 1 3868 3869/a|(b)(?C)/I 3870Capture group count = 1 3871Starting code units: a b 3872Subject length lower bound = 1 3873 b 3874--->b 3875 0 ^^ End of pattern 3876 0: b 3877 1: b 3878 3879/x(ab|(bc|(de|(?R))))/I 3880Capture group count = 3 3881First code unit = 'x' 3882Subject length lower bound = 3 3883 xab 3884 0: xab 3885 1: ab 3886 xbc 3887 0: xbc 3888 1: bc 3889 2: bc 3890 xde 3891 0: xde 3892 1: de 3893 2: de 3894 3: de 3895 xxab 3896 0: xxab 3897 1: xab 3898 2: xab 3899 3: xab 3900 xxxab 3901 0: xxxab 3902 1: xxab 3903 2: xxab 3904 3: xxab 3905\= Expect no match 3906 xyab 3907No match 3908 3909/^([^()]|\((?1)*\))*$/I 3910Capture group count = 1 3911May match empty string 3912Compile options: <none> 3913Overall options: anchored 3914Subject length lower bound = 0 3915 abc 3916 0: abc 3917 1: c 3918 a(b)c 3919 0: a(b)c 3920 1: c 3921 a(b(c))d 3922 0: a(b(c))d 3923 1: d 3924\= Expect no match) 3925 a(b(c)d 3926No match 3927 3928/^>abc>([^()]|\((?1)*\))*<xyz<$/I 3929Capture group count = 1 3930Compile options: <none> 3931Overall options: anchored 3932First code unit = '>' 3933Last code unit = '<' 3934Subject length lower bound = 10 3935 >abc>123<xyz< 3936 0: >abc>123<xyz< 3937 1: 3 3938 >abc>1(2)3<xyz< 3939 0: >abc>1(2)3<xyz< 3940 1: 3 3941 >abc>(1(2)3)<xyz< 3942 0: >abc>(1(2)3)<xyz< 3943 1: (1(2)3) 3944 3945/(a(?1)b)/IB 3946------------------------------------------------------------------ 3947 Bra 3948 CBra 1 3949 a 3950 Recurse 3951 b 3952 Ket 3953 Ket 3954 End 3955------------------------------------------------------------------ 3956Capture group count = 1 3957First code unit = 'a' 3958Last code unit = 'b' 3959Subject length lower bound = 2 3960 3961/(a(?1)+b)/IB 3962------------------------------------------------------------------ 3963 Bra 3964 CBra 1 3965 a 3966 SBra 3967 Recurse 3968 KetRmax 3969 b 3970 Ket 3971 Ket 3972 End 3973------------------------------------------------------------------ 3974Capture group count = 1 3975First code unit = 'a' 3976Last code unit = 'b' 3977Subject length lower bound = 2 3978 3979/^(\d+|\((?1)([+*-])(?1)\)|-(?1))$/I 3980Capture group count = 2 3981Compile options: <none> 3982Overall options: anchored 3983Starting code units: ( - 0 1 2 3 4 5 6 7 8 9 3984Subject length lower bound = 1 3985 12 3986 0: 12 3987 1: 12 3988 (((2+2)*-3)-7) 3989 0: (((2+2)*-3)-7) 3990 1: (((2+2)*-3)-7) 3991 2: - 3992 -12 3993 0: -12 3994 1: -12 3995\= Expect no match 3996 ((2+2)*-3)-7) 3997No match 3998 3999/^(x(y|(?1){2})z)/I 4000Capture group count = 2 4001Compile options: <none> 4002Overall options: anchored 4003First code unit = 'x' 4004Subject length lower bound = 3 4005 xyz 4006 0: xyz 4007 1: xyz 4008 2: y 4009 xxyzxyzz 4010 0: xxyzxyzz 4011 1: xxyzxyzz 4012 2: xyzxyz 4013\= Expect no match 4014 xxyzz 4015No match 4016 xxyzxyzxyzz 4017No match 4018 4019/((< (?: (?(R) \d++ | [^<>]*+) | (?2)) * >))/Ix 4020Capture group count = 2 4021Options: extended 4022First code unit = '<' 4023Last code unit = '>' 4024Subject length lower bound = 2 4025 <> 4026 0: <> 4027 1: <> 4028 2: <> 4029 <abcd> 4030 0: <abcd> 4031 1: <abcd> 4032 2: <abcd> 4033 <abc <123> hij> 4034 0: <abc <123> hij> 4035 1: <abc <123> hij> 4036 2: <abc <123> hij> 4037 <abc <def> hij> 4038 0: <def> 4039 1: <def> 4040 2: <def> 4041 <abc<>def> 4042 0: <abc<>def> 4043 1: <abc<>def> 4044 2: <abc<>def> 4045 <abc<> 4046 0: <> 4047 1: <> 4048 2: <> 4049\= Expect no match 4050 <abc 4051No match 4052 4053/(?1)/I 4054Failed: error 115 at offset 3: reference to non-existent subpattern 4055 4056/((?2)(abc)/I 4057Failed: error 114 at offset 10: missing closing parenthesis 4058 4059/^(abc)def(?1)/I 4060Capture group count = 1 4061Compile options: <none> 4062Overall options: anchored 4063First code unit = 'a' 4064Subject length lower bound = 9 4065 abcdefabc 4066 0: abcdefabc 4067 1: abc 4068 4069/^(a|b|c)=(?1)+/I 4070Capture group count = 1 4071Compile options: <none> 4072Overall options: anchored 4073Starting code units: a b c 4074Subject length lower bound = 2 4075 a=a 4076 0: a=a 4077 1: a 4078 a=b 4079 0: a=b 4080 1: a 4081 a=bc 4082 0: a=bc 4083 1: a 4084 4085/^(a|b|c)=((?1))+/I 4086Capture group count = 2 4087Compile options: <none> 4088Overall options: anchored 4089Starting code units: a b c 4090Subject length lower bound = 2 4091 a=a 4092 0: a=a 4093 1: a 4094 2: a 4095 a=b 4096 0: a=b 4097 1: a 4098 2: b 4099 a=bc 4100 0: a=bc 4101 1: a 4102 2: c 4103 4104/a(?P<name1>b|c)d(?P<longername2>e)/IB 4105------------------------------------------------------------------ 4106 Bra 4107 a 4108 CBra 1 4109 b 4110 Alt 4111 c 4112 Ket 4113 d 4114 CBra 2 4115 e 4116 Ket 4117 Ket 4118 End 4119------------------------------------------------------------------ 4120Capture group count = 2 4121Named capture groups: 4122 longername2 2 4123 name1 1 4124First code unit = 'a' 4125Last code unit = 'e' 4126Subject length lower bound = 4 4127 abde 4128 0: abde 4129 1: b 4130 2: e 4131 acde 4132 0: acde 4133 1: c 4134 2: e 4135 4136/(?:a(?P<c>c(?P<d>d)))(?P<a>a)/IB 4137------------------------------------------------------------------ 4138 Bra 4139 Bra 4140 a 4141 CBra 1 4142 c 4143 CBra 2 4144 d 4145 Ket 4146 Ket 4147 Ket 4148 CBra 3 4149 a 4150 Ket 4151 Ket 4152 End 4153------------------------------------------------------------------ 4154Capture group count = 3 4155Named capture groups: 4156 a 3 4157 c 1 4158 d 2 4159First code unit = 'a' 4160Last code unit = 'a' 4161Subject length lower bound = 4 4162 4163/(?P<a>a)...(?P=a)bbb(?P>a)d/IB 4164------------------------------------------------------------------ 4165 Bra 4166 CBra 1 4167 a 4168 Ket 4169 Any 4170 Any 4171 Any 4172 \1 4173 bbb 4174 Recurse 4175 d 4176 Ket 4177 End 4178------------------------------------------------------------------ 4179Capture group count = 1 4180Max back reference = 1 4181Named capture groups: 4182 a 1 4183First code unit = 'a' 4184Last code unit = 'd' 4185Subject length lower bound = 10 4186 4187/^\W*(?:(?P<one>(?P<two>.)\W*(?P>one)\W*(?P=two)|)|(?P<three>(?P<four>.)\W*(?P>three)\W*(?P=four)|\W*.\W*))\W*$/Ii 4188Capture group count = 4 4189Max back reference = 4 4190Named capture groups: 4191 four 4 4192 one 1 4193 three 3 4194 two 2 4195May match empty string 4196Compile options: caseless 4197Overall options: anchored caseless 4198Subject length lower bound = 0 4199 1221 4200 0: 1221 4201 1: 1221 4202 2: 1 4203 Satan, oscillate my metallic sonatas! 4204 0: Satan, oscillate my metallic sonatas! 4205 1: <unset> 4206 2: <unset> 4207 3: Satan, oscillate my metallic sonatas 4208 4: S 4209 A man, a plan, a canal: Panama! 4210 0: A man, a plan, a canal: Panama! 4211 1: <unset> 4212 2: <unset> 4213 3: A man, a plan, a canal: Panama 4214 4: A 4215 Able was I ere I saw Elba. 4216 0: Able was I ere I saw Elba. 4217 1: <unset> 4218 2: <unset> 4219 3: Able was I ere I saw Elba 4220 4: A 4221\= Expect no match 4222 The quick brown fox 4223No match 4224 4225/((?(R)a|b))\1(?1)?/I 4226Capture group count = 1 4227Max back reference = 1 4228Subject length lower bound = 2 4229 bb 4230 0: bb 4231 1: b 4232 bbaa 4233 0: bba 4234 1: b 4235 4236/(.*)a/Is 4237Capture group count = 1 4238Compile options: dotall 4239Overall options: anchored dotall 4240Last code unit = 'a' 4241Subject length lower bound = 1 4242 4243/(.*)a\1/Is 4244Capture group count = 1 4245Max back reference = 1 4246Options: dotall 4247Last code unit = 'a' 4248Subject length lower bound = 1 4249 4250/(.*)a(b)\2/Is 4251Capture group count = 2 4252Max back reference = 2 4253Compile options: dotall 4254Overall options: anchored dotall 4255Last code unit = 'b' 4256Subject length lower bound = 3 4257 4258/((.*)a|(.*)b)z/Is 4259Capture group count = 3 4260Compile options: dotall 4261Overall options: anchored dotall 4262Last code unit = 'z' 4263Subject length lower bound = 2 4264 4265/((.*)a|(.*)b)z\1/Is 4266Capture group count = 3 4267Max back reference = 1 4268Options: dotall 4269Last code unit = 'z' 4270Subject length lower bound = 3 4271 4272/((.*)a|(.*)b)z\2/Is 4273Capture group count = 3 4274Max back reference = 2 4275Options: dotall 4276Last code unit = 'z' 4277Subject length lower bound = 2 4278 4279/((.*)a|(.*)b)z\3/Is 4280Capture group count = 3 4281Max back reference = 3 4282Options: dotall 4283Last code unit = 'z' 4284Subject length lower bound = 2 4285 4286/((.*)a|^(.*)b)z\3/Is 4287Capture group count = 3 4288Max back reference = 3 4289Compile options: dotall 4290Overall options: anchored dotall 4291Last code unit = 'z' 4292Subject length lower bound = 2 4293 4294/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a/Is 4295Capture group count = 31 4296May match empty string 4297Compile options: dotall 4298Overall options: anchored dotall 4299Subject length lower bound = 0 4300 4301/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\31/Is 4302Capture group count = 31 4303Max back reference = 31 4304May match empty string 4305Options: dotall 4306Subject length lower bound = 0 4307 4308/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\32/Is 4309Capture group count = 32 4310Max back reference = 32 4311May match empty string 4312Options: dotall 4313Subject length lower bound = 0 4314 4315/(a)(bc)/IB,no_auto_capture 4316------------------------------------------------------------------ 4317 Bra 4318 Bra 4319 a 4320 Ket 4321 Bra 4322 bc 4323 Ket 4324 Ket 4325 End 4326------------------------------------------------------------------ 4327Capture group count = 0 4328Options: no_auto_capture 4329First code unit = 'a' 4330Last code unit = 'c' 4331Subject length lower bound = 3 4332 abc 4333 0: abc 4334 4335/(?P<one>a)(bc)/IB,no_auto_capture 4336------------------------------------------------------------------ 4337 Bra 4338 CBra 1 4339 a 4340 Ket 4341 Bra 4342 bc 4343 Ket 4344 Ket 4345 End 4346------------------------------------------------------------------ 4347Capture group count = 1 4348Named capture groups: 4349 one 1 4350Options: no_auto_capture 4351First code unit = 'a' 4352Last code unit = 'c' 4353Subject length lower bound = 3 4354 abc 4355 0: abc 4356 1: a 4357 4358/(a)(?P<named>bc)/IB,no_auto_capture 4359------------------------------------------------------------------ 4360 Bra 4361 Bra 4362 a 4363 Ket 4364 CBra 1 4365 bc 4366 Ket 4367 Ket 4368 End 4369------------------------------------------------------------------ 4370Capture group count = 1 4371Named capture groups: 4372 named 1 4373Options: no_auto_capture 4374First code unit = 'a' 4375Last code unit = 'c' 4376Subject length lower bound = 3 4377 4378/(aaa(?C1)bbb|ab)/I 4379Capture group count = 1 4380First code unit = 'a' 4381Last code unit = 'b' 4382Subject length lower bound = 2 4383 aaabbb 4384--->aaabbb 4385 1 ^ ^ b 4386 0: aaabbb 4387 1: aaabbb 4388 aaabbb\=callout_data=0 4389--->aaabbb 4390 1 ^ ^ b 4391 0: aaabbb 4392 1: aaabbb 4393 aaabbb\=callout_data=1 4394--->aaabbb 4395 1 ^ ^ b 4396Callout data = 1 4397 0: ab 4398 1: ab 4399\= Expect no match 4400 aaabbb\=callout_data=-1 4401--->aaabbb 4402 1 ^ ^ b 4403Callout data = -1 4404No match 4405 4406/ab(?P<one>cd)ef(?P<two>gh)/I 4407Capture group count = 2 4408Named capture groups: 4409 one 1 4410 two 2 4411First code unit = 'a' 4412Last code unit = 'h' 4413Subject length lower bound = 8 4414 abcdefgh 4415 0: abcdefgh 4416 1: cd 4417 2: gh 4418 abcdefgh\=copy=1,get=two 4419 0: abcdefgh 4420 1: cd 4421 2: gh 4422 1C cd (2) 4423 G gh (2) two (group 2) 4424 abcdefgh\=copy=one,copy=two 4425 0: abcdefgh 4426 1: cd 4427 2: gh 4428 C cd (2) one (group 1) 4429 C gh (2) two (group 2) 4430 abcdefgh\=copy=three 4431 0: abcdefgh 4432 1: cd 4433 2: gh 4434Number not found for group 'three' 4435Copy substring 'three' failed (-49): unknown substring 4436 4437/(?P<Tes>)(?P<Test>)/IB 4438------------------------------------------------------------------ 4439 Bra 4440 CBra 1 4441 Ket 4442 CBra 2 4443 Ket 4444 Ket 4445 End 4446------------------------------------------------------------------ 4447Capture group count = 2 4448Named capture groups: 4449 Tes 1 4450 Test 2 4451May match empty string 4452Subject length lower bound = 0 4453 4454/(?P<Test>)(?P<Tes>)/IB 4455------------------------------------------------------------------ 4456 Bra 4457 CBra 1 4458 Ket 4459 CBra 2 4460 Ket 4461 Ket 4462 End 4463------------------------------------------------------------------ 4464Capture group count = 2 4465Named capture groups: 4466 Tes 2 4467 Test 1 4468May match empty string 4469Subject length lower bound = 0 4470 4471/(?P<Z>zz)(?P<A>aa)/I 4472Capture group count = 2 4473Named capture groups: 4474 A 2 4475 Z 1 4476First code unit = 'z' 4477Last code unit = 'a' 4478Subject length lower bound = 4 4479 zzaa\=copy=Z 4480 0: zzaa 4481 1: zz 4482 2: aa 4483 C zz (2) Z (group 1) 4484 zzaa\=copy=A 4485 0: zzaa 4486 1: zz 4487 2: aa 4488 C aa (2) A (group 2) 4489 4490/(?P<x>eks)(?P<x>eccs)/I 4491Failed: error 143 at offset 16: two named subpatterns have the same name (PCRE2_DUPNAMES not set) 4492 4493/(?P<abc>abc(?P<def>def)(?P<abc>xyz))/I 4494Failed: error 143 at offset 31: two named subpatterns have the same name (PCRE2_DUPNAMES not set) 4495 4496"\[((?P<elem>\d+)(,(?P>elem))*)\]"I 4497Capture group count = 3 4498Named capture groups: 4499 elem 2 4500First code unit = '[' 4501Last code unit = ']' 4502Subject length lower bound = 3 4503 [10,20,30,5,5,4,4,2,43,23,4234] 4504 0: [10,20,30,5,5,4,4,2,43,23,4234] 4505 1: 10,20,30,5,5,4,4,2,43,23,4234 4506 2: 10 4507 3: ,4234 4508\= Expect no match 4509 [] 4510No match 4511 4512"\[((?P<elem>\d+)(,(?P>elem))*)?\]"I 4513Capture group count = 3 4514Named capture groups: 4515 elem 2 4516First code unit = '[' 4517Last code unit = ']' 4518Subject length lower bound = 2 4519 [10,20,30,5,5,4,4,2,43,23,4234] 4520 0: [10,20,30,5,5,4,4,2,43,23,4234] 4521 1: 10,20,30,5,5,4,4,2,43,23,4234 4522 2: 10 4523 3: ,4234 4524 [] 4525 0: [] 4526 4527/(a(b(?2)c))?/IB 4528------------------------------------------------------------------ 4529 Bra 4530 Brazero 4531 CBra 1 4532 a 4533 CBra 2 4534 b 4535 Recurse 4536 c 4537 Ket 4538 Ket 4539 Ket 4540 End 4541------------------------------------------------------------------ 4542Capture group count = 2 4543May match empty string 4544Subject length lower bound = 0 4545 4546/(a(b(?2)c))*/IB 4547------------------------------------------------------------------ 4548 Bra 4549 Brazero 4550 CBra 1 4551 a 4552 CBra 2 4553 b 4554 Recurse 4555 c 4556 Ket 4557 KetRmax 4558 Ket 4559 End 4560------------------------------------------------------------------ 4561Capture group count = 2 4562May match empty string 4563Subject length lower bound = 0 4564 4565/(a(b(?2)c)){0,2}/IB 4566------------------------------------------------------------------ 4567 Bra 4568 Brazero 4569 Bra 4570 CBra 1 4571 a 4572 CBra 2 4573 b 4574 Recurse 4575 c 4576 Ket 4577 Ket 4578 Brazero 4579 CBra 1 4580 a 4581 CBra 2 4582 b 4583 Recurse 4584 c 4585 Ket 4586 Ket 4587 Ket 4588 Ket 4589 End 4590------------------------------------------------------------------ 4591Capture group count = 2 4592May match empty string 4593Subject length lower bound = 0 4594 4595/[ab]{1}+/B 4596------------------------------------------------------------------ 4597 Bra 4598 [ab] 4599 Ket 4600 End 4601------------------------------------------------------------------ 4602 4603/()(?1){1}/B 4604------------------------------------------------------------------ 4605 Bra 4606 CBra 1 4607 Ket 4608 Recurse 4609 Ket 4610 End 4611------------------------------------------------------------------ 4612 4613/()(?1)/B 4614------------------------------------------------------------------ 4615 Bra 4616 CBra 1 4617 Ket 4618 Recurse 4619 Ket 4620 End 4621------------------------------------------------------------------ 4622 4623/((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/Ii 4624Capture group count = 3 4625Options: caseless 4626Last code unit = 'g' (caseless) 4627Subject length lower bound = 8 4628 Baby Bjorn Active Carrier - With free SHIPPING!! 4629 0: Baby Bjorn Active Carrier - With free SHIPPING!! 4630 1: Baby Bjorn Active Carrier - With free SHIPPING!! 4631 4632/((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/Ii 4633Capture group count = 3 4634Options: caseless 4635Last code unit = 'g' (caseless) 4636Subject length lower bound = 8 4637 Baby Bjorn Active Carrier - With free SHIPPING!! 4638 0: Baby Bjorn Active Carrier - With free SHIPPING!! 4639 1: Baby Bjorn Active Carrier - With free SHIPPING!! 4640 4641/a*.*b/IB 4642------------------------------------------------------------------ 4643 Bra 4644 a* 4645 Any* 4646 b 4647 Ket 4648 End 4649------------------------------------------------------------------ 4650Capture group count = 0 4651Last code unit = 'b' 4652Subject length lower bound = 1 4653 4654/(a|b)*.?c/IB 4655------------------------------------------------------------------ 4656 Bra 4657 Brazero 4658 CBra 1 4659 a 4660 Alt 4661 b 4662 KetRmax 4663 Any? 4664 c 4665 Ket 4666 End 4667------------------------------------------------------------------ 4668Capture group count = 1 4669Last code unit = 'c' 4670Subject length lower bound = 1 4671 4672/abc(?C255)de(?C)f/IB 4673------------------------------------------------------------------ 4674 Bra 4675 abc 4676 Callout 255 10 1 4677 de 4678 Callout 0 16 1 4679 f 4680 Ket 4681 End 4682------------------------------------------------------------------ 4683Capture group count = 0 4684First code unit = 'a' 4685Last code unit = 'f' 4686Subject length lower bound = 6 4687 4688/abcde/IB,auto_callout 4689------------------------------------------------------------------ 4690 Bra 4691 Callout 255 0 1 4692 a 4693 Callout 255 1 1 4694 b 4695 Callout 255 2 1 4696 c 4697 Callout 255 3 1 4698 d 4699 Callout 255 4 1 4700 e 4701 Callout 255 5 0 4702 Ket 4703 End 4704------------------------------------------------------------------ 4705Capture group count = 0 4706Options: auto_callout 4707First code unit = 'a' 4708Last code unit = 'e' 4709Subject length lower bound = 5 4710 abcde 4711--->abcde 4712 +0 ^ a 4713 +1 ^^ b 4714 +2 ^ ^ c 4715 +3 ^ ^ d 4716 +4 ^ ^ e 4717 +5 ^ ^ End of pattern 4718 0: abcde 4719\= Expect no match 4720 abcdfe 4721--->abcdfe 4722 +0 ^ a 4723 +1 ^^ b 4724 +2 ^ ^ c 4725 +3 ^ ^ d 4726 +4 ^ ^ e 4727No match 4728 4729/a*b/IB,auto_callout 4730------------------------------------------------------------------ 4731 Bra 4732 Callout 255 0 2 4733 a*+ 4734 Callout 255 2 1 4735 b 4736 Callout 255 3 0 4737 Ket 4738 End 4739------------------------------------------------------------------ 4740Capture group count = 0 4741Options: auto_callout 4742Starting code units: a b 4743Last code unit = 'b' 4744Subject length lower bound = 1 4745 ab 4746--->ab 4747 +0 ^ a* 4748 +2 ^^ b 4749 +3 ^ ^ End of pattern 4750 0: ab 4751 aaaab 4752--->aaaab 4753 +0 ^ a* 4754 +2 ^ ^ b 4755 +3 ^ ^ End of pattern 4756 0: aaaab 4757 aaaacb 4758--->aaaacb 4759 +0 ^ a* 4760 +2 ^ ^ b 4761 +0 ^ a* 4762 +2 ^ ^ b 4763 +0 ^ a* 4764 +2 ^ ^ b 4765 +0 ^ a* 4766 +2 ^^ b 4767 +0 ^ a* 4768 +2 ^ b 4769 +3 ^^ End of pattern 4770 0: b 4771 4772/a*b/IB,auto_callout 4773------------------------------------------------------------------ 4774 Bra 4775 Callout 255 0 2 4776 a*+ 4777 Callout 255 2 1 4778 b 4779 Callout 255 3 0 4780 Ket 4781 End 4782------------------------------------------------------------------ 4783Capture group count = 0 4784Options: auto_callout 4785Starting code units: a b 4786Last code unit = 'b' 4787Subject length lower bound = 1 4788 ab 4789--->ab 4790 +0 ^ a* 4791 +2 ^^ b 4792 +3 ^ ^ End of pattern 4793 0: ab 4794 aaaab 4795--->aaaab 4796 +0 ^ a* 4797 +2 ^ ^ b 4798 +3 ^ ^ End of pattern 4799 0: aaaab 4800 aaaacb 4801--->aaaacb 4802 +0 ^ a* 4803 +2 ^ ^ b 4804 +0 ^ a* 4805 +2 ^ ^ b 4806 +0 ^ a* 4807 +2 ^ ^ b 4808 +0 ^ a* 4809 +2 ^^ b 4810 +0 ^ a* 4811 +2 ^ b 4812 +3 ^^ End of pattern 4813 0: b 4814 4815/a+b/IB,auto_callout 4816------------------------------------------------------------------ 4817 Bra 4818 Callout 255 0 2 4819 a++ 4820 Callout 255 2 1 4821 b 4822 Callout 255 3 0 4823 Ket 4824 End 4825------------------------------------------------------------------ 4826Capture group count = 0 4827Options: auto_callout 4828First code unit = 'a' 4829Last code unit = 'b' 4830Subject length lower bound = 2 4831 ab 4832--->ab 4833 +0 ^ a+ 4834 +2 ^^ b 4835 +3 ^ ^ End of pattern 4836 0: ab 4837 aaaab 4838--->aaaab 4839 +0 ^ a+ 4840 +2 ^ ^ b 4841 +3 ^ ^ End of pattern 4842 0: aaaab 4843\= Expect no match 4844 aaaacb 4845--->aaaacb 4846 +0 ^ a+ 4847 +2 ^ ^ b 4848 +0 ^ a+ 4849 +2 ^ ^ b 4850 +0 ^ a+ 4851 +2 ^ ^ b 4852 +0 ^ a+ 4853 +2 ^^ b 4854No match 4855 4856/(abc|def)x/IB,auto_callout 4857------------------------------------------------------------------ 4858 Bra 4859 Callout 255 0 1 4860 CBra 1 4861 Callout 255 1 1 4862 a 4863 Callout 255 2 1 4864 b 4865 Callout 255 3 1 4866 c 4867 Callout 255 4 1 4868 Alt 4869 Callout 255 5 1 4870 d 4871 Callout 255 6 1 4872 e 4873 Callout 255 7 1 4874 f 4875 Callout 255 8 1 4876 Ket 4877 Callout 255 9 1 4878 x 4879 Callout 255 10 0 4880 Ket 4881 End 4882------------------------------------------------------------------ 4883Capture group count = 1 4884Options: auto_callout 4885Starting code units: a d 4886Last code unit = 'x' 4887Subject length lower bound = 4 4888 abcx 4889--->abcx 4890 +0 ^ ( 4891 +1 ^ a 4892 +2 ^^ b 4893 +3 ^ ^ c 4894 +4 ^ ^ | 4895 +9 ^ ^ x 4896+10 ^ ^ End of pattern 4897 0: abcx 4898 1: abc 4899 defx 4900--->defx 4901 +0 ^ ( 4902 +1 ^ a 4903 +5 ^ d 4904 +6 ^^ e 4905 +7 ^ ^ f 4906 +8 ^ ^ ) 4907 +9 ^ ^ x 4908+10 ^ ^ End of pattern 4909 0: defx 4910 1: def 4911\= Expect no match 4912 abcdefzx 4913--->abcdefzx 4914 +0 ^ ( 4915 +1 ^ a 4916 +2 ^^ b 4917 +3 ^ ^ c 4918 +4 ^ ^ | 4919 +9 ^ ^ x 4920 +5 ^ d 4921 +0 ^ ( 4922 +1 ^ a 4923 +5 ^ d 4924 +6 ^^ e 4925 +7 ^ ^ f 4926 +8 ^ ^ ) 4927 +9 ^ ^ x 4928No match 4929 4930/(abc|def)x/IB,auto_callout 4931------------------------------------------------------------------ 4932 Bra 4933 Callout 255 0 1 4934 CBra 1 4935 Callout 255 1 1 4936 a 4937 Callout 255 2 1 4938 b 4939 Callout 255 3 1 4940 c 4941 Callout 255 4 1 4942 Alt 4943 Callout 255 5 1 4944 d 4945 Callout 255 6 1 4946 e 4947 Callout 255 7 1 4948 f 4949 Callout 255 8 1 4950 Ket 4951 Callout 255 9 1 4952 x 4953 Callout 255 10 0 4954 Ket 4955 End 4956------------------------------------------------------------------ 4957Capture group count = 1 4958Options: auto_callout 4959Starting code units: a d 4960Last code unit = 'x' 4961Subject length lower bound = 4 4962 abcx 4963--->abcx 4964 +0 ^ ( 4965 +1 ^ a 4966 +2 ^^ b 4967 +3 ^ ^ c 4968 +4 ^ ^ | 4969 +9 ^ ^ x 4970+10 ^ ^ End of pattern 4971 0: abcx 4972 1: abc 4973 defx 4974--->defx 4975 +0 ^ ( 4976 +1 ^ a 4977 +5 ^ d 4978 +6 ^^ e 4979 +7 ^ ^ f 4980 +8 ^ ^ ) 4981 +9 ^ ^ x 4982+10 ^ ^ End of pattern 4983 0: defx 4984 1: def 4985\= Expect no match 4986 abcdefzx 4987--->abcdefzx 4988 +0 ^ ( 4989 +1 ^ a 4990 +2 ^^ b 4991 +3 ^ ^ c 4992 +4 ^ ^ | 4993 +9 ^ ^ x 4994 +5 ^ d 4995 +0 ^ ( 4996 +1 ^ a 4997 +5 ^ d 4998 +6 ^^ e 4999 +7 ^ ^ f 5000 +8 ^ ^ ) 5001 +9 ^ ^ x 5002No match 5003 5004/(ab|cd){3,4}/I,auto_callout 5005Capture group count = 1 5006Options: auto_callout 5007Starting code units: a c 5008Subject length lower bound = 6 5009 ababab 5010--->ababab 5011 +0 ^ ( 5012 +1 ^ a 5013 +2 ^^ b 5014 +3 ^ ^ | 5015 +1 ^ ^ a 5016 +2 ^ ^ b 5017 +3 ^ ^ | 5018 +1 ^ ^ a 5019 +2 ^ ^ b 5020 +3 ^ ^ | 5021 +1 ^ ^ a 5022 +4 ^ ^ c 5023+12 ^ ^ End of pattern 5024 0: ababab 5025 1: ab 5026 abcdabcd 5027--->abcdabcd 5028 +0 ^ ( 5029 +1 ^ a 5030 +2 ^^ b 5031 +3 ^ ^ | 5032 +1 ^ ^ a 5033 +4 ^ ^ c 5034 +5 ^ ^ d 5035 +6 ^ ^ ){3,4} 5036 +1 ^ ^ a 5037 +2 ^ ^ b 5038 +3 ^ ^ | 5039 +1 ^ ^ a 5040 +4 ^ ^ c 5041 +5 ^ ^ d 5042 +6 ^ ^ ){3,4} 5043+12 ^ ^ End of pattern 5044 0: abcdabcd 5045 1: cd 5046 abcdcdcdcdcd 5047--->abcdcdcdcdcd 5048 +0 ^ ( 5049 +1 ^ a 5050 +2 ^^ b 5051 +3 ^ ^ | 5052 +1 ^ ^ a 5053 +4 ^ ^ c 5054 +5 ^ ^ d 5055 +6 ^ ^ ){3,4} 5056 +1 ^ ^ a 5057 +4 ^ ^ c 5058 +5 ^ ^ d 5059 +6 ^ ^ ){3,4} 5060 +1 ^ ^ a 5061 +4 ^ ^ c 5062 +5 ^ ^ d 5063 +6 ^ ^ ){3,4} 5064+12 ^ ^ End of pattern 5065 0: abcdcdcd 5066 1: cd 5067 5068/([ab]{,4}c|xy)/IB,auto_callout 5069------------------------------------------------------------------ 5070 Bra 5071 Callout 255 0 1 5072 CBra 1 5073 Callout 255 1 4 5074 [ab] 5075 Callout 255 5 1 5076 { 5077 Callout 255 6 1 5078 , 5079 Callout 255 7 1 5080 4 5081 Callout 255 8 1 5082 } 5083 Callout 255 9 1 5084 c 5085 Callout 255 10 1 5086 Alt 5087 Callout 255 11 1 5088 x 5089 Callout 255 12 1 5090 y 5091 Callout 255 13 1 5092 Ket 5093 Callout 255 14 0 5094 Ket 5095 End 5096------------------------------------------------------------------ 5097Capture group count = 1 5098Options: auto_callout 5099Starting code units: a b x 5100Subject length lower bound = 2 5101\= Expect no match 5102 Note: that { does NOT introduce a quantifier 5103--->Note: that { does NOT introduce a quantifier 5104 +0 ^ ( 5105 +1 ^ [ab] 5106 +5 ^^ { 5107+11 ^ x 5108 +0 ^ ( 5109 +1 ^ [ab] 5110 +5 ^^ { 5111+11 ^ x 5112 +0 ^ ( 5113 +1 ^ [ab] 5114 +5 ^^ { 5115+11 ^ x 5116No match 5117 5118/([ab]{,4}c|xy)/IB,auto_callout 5119------------------------------------------------------------------ 5120 Bra 5121 Callout 255 0 1 5122 CBra 1 5123 Callout 255 1 4 5124 [ab] 5125 Callout 255 5 1 5126 { 5127 Callout 255 6 1 5128 , 5129 Callout 255 7 1 5130 4 5131 Callout 255 8 1 5132 } 5133 Callout 255 9 1 5134 c 5135 Callout 255 10 1 5136 Alt 5137 Callout 255 11 1 5138 x 5139 Callout 255 12 1 5140 y 5141 Callout 255 13 1 5142 Ket 5143 Callout 255 14 0 5144 Ket 5145 End 5146------------------------------------------------------------------ 5147Capture group count = 1 5148Options: auto_callout 5149Starting code units: a b x 5150Subject length lower bound = 2 5151\= Expect no match 5152 Note: that { does NOT introduce a quantifier 5153--->Note: that { does NOT introduce a quantifier 5154 +0 ^ ( 5155 +1 ^ [ab] 5156 +5 ^^ { 5157+11 ^ x 5158 +0 ^ ( 5159 +1 ^ [ab] 5160 +5 ^^ { 5161+11 ^ x 5162 +0 ^ ( 5163 +1 ^ [ab] 5164 +5 ^^ { 5165+11 ^ x 5166No match 5167 5168/([ab]{1,4}c|xy){4,5}?123/IB,auto_callout 5169------------------------------------------------------------------ 5170 Bra 5171 Callout 255 0 1 5172 CBra 1 5173 Callout 255 1 9 5174 [ab]{1,4}+ 5175 Callout 255 10 1 5176 c 5177 Callout 255 11 1 5178 Alt 5179 Callout 255 12 1 5180 x 5181 Callout 255 13 1 5182 y 5183 Callout 255 14 7 5184 Ket 5185 CBra 1 5186 Callout 255 1 9 5187 [ab]{1,4}+ 5188 Callout 255 10 1 5189 c 5190 Callout 255 11 1 5191 Alt 5192 Callout 255 12 1 5193 x 5194 Callout 255 13 1 5195 y 5196 Callout 255 14 7 5197 Ket 5198 CBra 1 5199 Callout 255 1 9 5200 [ab]{1,4}+ 5201 Callout 255 10 1 5202 c 5203 Callout 255 11 1 5204 Alt 5205 Callout 255 12 1 5206 x 5207 Callout 255 13 1 5208 y 5209 Callout 255 14 7 5210 Ket 5211 CBra 1 5212 Callout 255 1 9 5213 [ab]{1,4}+ 5214 Callout 255 10 1 5215 c 5216 Callout 255 11 1 5217 Alt 5218 Callout 255 12 1 5219 x 5220 Callout 255 13 1 5221 y 5222 Callout 255 14 7 5223 Ket 5224 Braminzero 5225 CBra 1 5226 Callout 255 1 9 5227 [ab]{1,4}+ 5228 Callout 255 10 1 5229 c 5230 Callout 255 11 1 5231 Alt 5232 Callout 255 12 1 5233 x 5234 Callout 255 13 1 5235 y 5236 Callout 255 14 7 5237 Ket 5238 Callout 255 21 1 5239 1 5240 Callout 255 22 1 5241 2 5242 Callout 255 23 1 5243 3 5244 Callout 255 24 0 5245 Ket 5246 End 5247------------------------------------------------------------------ 5248Capture group count = 1 5249Options: auto_callout 5250Starting code units: a b x 5251Last code unit = '3' 5252Subject length lower bound = 11 5253 aacaacaacaacaac123 5254--->aacaacaacaacaac123 5255 +0 ^ ( 5256 +1 ^ [ab]{1,4} 5257+10 ^ ^ c 5258+11 ^ ^ | 5259 +1 ^ ^ [ab]{1,4} 5260+10 ^ ^ c 5261+11 ^ ^ | 5262 +1 ^ ^ [ab]{1,4} 5263+10 ^ ^ c 5264+11 ^ ^ | 5265 +1 ^ ^ [ab]{1,4} 5266+10 ^ ^ c 5267+11 ^ ^ | 5268+21 ^ ^ 1 5269 +1 ^ ^ [ab]{1,4} 5270+10 ^ ^ c 5271+11 ^ ^ | 5272+21 ^ ^ 1 5273+22 ^ ^ 2 5274+23 ^ ^ 3 5275+24 ^ ^ End of pattern 5276 0: aacaacaacaacaac123 5277 1: aac 5278 5279/\b.*/I 5280Capture group count = 0 5281Max lookbehind = 1 5282May match empty string 5283Subject length lower bound = 0 5284 ab cd\=offset=1 5285 0: cd 5286 5287/\b.*/Is 5288Capture group count = 0 5289Max lookbehind = 1 5290May match empty string 5291Options: dotall 5292Subject length lower bound = 0 5293 ab cd\=startoffset=1 5294 0: cd 5295 5296/(?!.bcd).*/I 5297Capture group count = 0 5298May match empty string 5299Subject length lower bound = 0 5300 Xbcd12345 5301 0: bcd12345 5302 5303/abcde/I 5304Capture group count = 0 5305First code unit = 'a' 5306Last code unit = 'e' 5307Subject length lower bound = 5 5308 ab\=ps 5309Partial match: ab 5310 abc\=ps 5311Partial match: abc 5312 abcd\=ps 5313Partial match: abcd 5314 abcde\=ps 5315 0: abcde 5316 the quick brown abc\=ps 5317Partial match: abc 5318\= Expect no match\=ps 5319 the quick brown abxyz fox\=ps 5320No match 5321 5322"^(0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[012])/(20)?\d\d$"I 5323Capture group count = 3 5324Compile options: <none> 5325Overall options: anchored 5326Starting code units: 0 1 2 3 4 5 6 7 8 9 5327Last code unit = '/' 5328Subject length lower bound = 6 5329 13/05/04\=ps 5330 0: 13/05/04 5331 1: 13 5332 2: 05 5333 13/5/2004\=ps 5334 0: 13/5/2004 5335 1: 13 5336 2: 5 5337 3: 20 5338 02/05/09\=ps 5339 0: 02/05/09 5340 1: 02 5341 2: 05 5342 1\=ps 5343Partial match: 1 5344 1/2\=ps 5345Partial match: 1/2 5346 1/2/0\=ps 5347Partial match: 1/2/0 5348 1/2/04\=ps 5349 0: 1/2/04 5350 1: 1 5351 2: 2 5352 0\=ps 5353Partial match: 0 5354 02/\=ps 5355Partial match: 02/ 5356 02/0\=ps 5357Partial match: 02/0 5358 02/1\=ps 5359Partial match: 02/1 5360\= Expect no match\=ps 5361 \=ps 5362No match 5363 123\=ps 5364No match 5365 33/4/04\=ps 5366No match 5367 3/13/04\=ps 5368No match 5369 0/1/2003\=ps 5370No match 5371 0/\=ps 5372No match 5373 02/0/\=ps 5374No match 5375 02/13\=ps 5376No match 5377 5378/0{0,2}ABC/I 5379Capture group count = 0 5380Starting code units: 0 A 5381Last code unit = 'C' 5382Subject length lower bound = 3 5383 5384/\d{3,}ABC/I 5385Capture group count = 0 5386Starting code units: 0 1 2 3 4 5 6 7 8 9 5387Last code unit = 'C' 5388Subject length lower bound = 6 5389 5390/\d*ABC/I 5391Capture group count = 0 5392Starting code units: 0 1 2 3 4 5 6 7 8 9 A 5393Last code unit = 'C' 5394Subject length lower bound = 3 5395 5396/[abc]+DE/I 5397Capture group count = 0 5398Starting code units: a b c 5399Last code unit = 'E' 5400Subject length lower bound = 3 5401 5402/[abc]?123/I 5403Capture group count = 0 5404Starting code units: 1 a b c 5405Last code unit = '3' 5406Subject length lower bound = 3 5407 123\=ps 5408 0: 123 5409 a\=ps 5410Partial match: a 5411 b\=ps 5412Partial match: b 5413 c\=ps 5414Partial match: c 5415 c12\=ps 5416Partial match: c12 5417 c123\=ps 5418 0: c123 5419 5420/^(?:\d){3,5}X/I 5421Capture group count = 0 5422Compile options: <none> 5423Overall options: anchored 5424Starting code units: 0 1 2 3 4 5 6 7 8 9 5425Last code unit = 'X' 5426Subject length lower bound = 4 5427 1\=ps 5428Partial match: 1 5429 123\=ps 5430Partial match: 123 5431 123X 5432 0: 123X 5433 1234\=ps 5434Partial match: 1234 5435 1234X 5436 0: 1234X 5437 12345\=ps 5438Partial match: 12345 5439 12345X 5440 0: 12345X 5441\= Expect no match 5442 1X 5443No match 5444 123456\=ps 5445No match 5446 5447"<(\w+)/?>(.)*</(\1)>"Igms 5448Capture group count = 3 5449Max back reference = 1 5450Options: dotall multiline 5451First code unit = '<' 5452Last code unit = '>' 5453Subject length lower bound = 7 5454 <!DOCTYPE seite SYSTEM "http://www.lco.lineas.de/xmlCms.dtd">\n<seite>\n<dokumenteninformation>\n<seitentitel>Partner der LCO</seitentitel>\n<sprache>de</sprache>\n<seitenbeschreibung>Partner der LINEAS Consulting\nGmbH</seitenbeschreibung>\n<schluesselworte>LINEAS Consulting GmbH Hamburg\nPartnerfirmen</schluesselworte>\n<revisit>30 days</revisit>\n<robots>index,follow</robots>\n<menueinformation>\n<aktiv>ja</aktiv>\n<menueposition>3</menueposition>\n<menuetext>Partner</menuetext>\n</menueinformation>\n<lastedited>\n<autor>LCO</autor>\n<firma>LINEAS Consulting</firma>\n<datum>15.10.2003</datum>\n</lastedited>\n</dokumenteninformation>\n<inhalt>\n\n<absatzueberschrift>Die Partnerfirmen der LINEAS Consulting\nGmbH</absatzueberschrift>\n\n<absatz><link ziel="http://www.ca.com/" zielfenster="_blank">\n<bild name="logo_ca.gif" rahmen="no"/></link> <link\nziel="http://www.ey.com/" zielfenster="_blank"><bild\nname="logo_euy.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><link ziel="http://www.cisco.de/" zielfenster="_blank">\n<bild name="logo_cisco.gif" rahmen="ja"/></link></absatz>\n\n<absatz><link ziel="http://www.atelion.de/"\nzielfenster="_blank"><bild\nname="logo_atelion.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><link ziel="http://www.line-information.de/"\nzielfenster="_blank">\n<bild name="logo_line_information.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><bild name="logo_aw.gif" rahmen="no"/></absatz>\n\n<absatz><link ziel="http://www.incognis.de/"\nzielfenster="_blank"><bild\nname="logo_incognis.gif" rahmen="no"/></link></absatz>\n\n<absatz><link ziel="http://www.addcraft.com/"\nzielfenster="_blank"><bild\nname="logo_addcraft.gif" rahmen="no"/></link></absatz>\n\n<absatz><link ziel="http://www.comendo.com/"\nzielfenster="_blank"><bild\nname="logo_comendo.gif" rahmen="no"/></link></absatz>\n\n</inhalt>\n</seite>\=jitstack=1024 5455 0: <seite>\x0a<dokumenteninformation>\x0a<seitentitel>Partner der LCO</seitentitel>\x0a<sprache>de</sprache>\x0a<seitenbeschreibung>Partner der LINEAS Consulting\x0aGmbH</seitenbeschreibung>\x0a<schluesselworte>LINEAS Consulting GmbH Hamburg\x0aPartnerfirmen</schluesselworte>\x0a<revisit>30 days</revisit>\x0a<robots>index,follow</robots>\x0a<menueinformation>\x0a<aktiv>ja</aktiv>\x0a<menueposition>3</menueposition>\x0a<menuetext>Partner</menuetext>\x0a</menueinformation>\x0a<lastedited>\x0a<autor>LCO</autor>\x0a<firma>LINEAS Consulting</firma>\x0a<datum>15.10.2003</datum>\x0a</lastedited>\x0a</dokumenteninformation>\x0a<inhalt>\x0a\x0a<absatzueberschrift>Die Partnerfirmen der LINEAS Consulting\x0aGmbH</absatzueberschrift>\x0a\x0a<absatz><link ziel="http://www.ca.com/" zielfenster="_blank">\x0a<bild name="logo_ca.gif" rahmen="no"/></link> <link\x0aziel="http://www.ey.com/" zielfenster="_blank"><bild\x0aname="logo_euy.gif" rahmen="no"/></link>\x0a</absatz>\x0a\x0a<absatz><link ziel="http://www.cisco.de/" zielfenster="_blank">\x0a<bild name="logo_cisco.gif" rahmen="ja"/></link></absatz>\x0a\x0a<absatz><link ziel="http://www.atelion.de/"\x0azielfenster="_blank"><bild\x0aname="logo_atelion.gif" rahmen="no"/></link>\x0a</absatz>\x0a\x0a<absatz><link ziel="http://www.line-information.de/"\x0azielfenster="_blank">\x0a<bild name="logo_line_information.gif" rahmen="no"/></link>\x0a</absatz>\x0a\x0a<absatz><bild name="logo_aw.gif" rahmen="no"/></absatz>\x0a\x0a<absatz><link ziel="http://www.incognis.de/"\x0azielfenster="_blank"><bild\x0aname="logo_incognis.gif" rahmen="no"/></link></absatz>\x0a\x0a<absatz><link ziel="http://www.addcraft.com/"\x0azielfenster="_blank"><bild\x0aname="logo_addcraft.gif" rahmen="no"/></link></absatz>\x0a\x0a<absatz><link ziel="http://www.comendo.com/"\x0azielfenster="_blank"><bild\x0aname="logo_comendo.gif" rahmen="no"/></link></absatz>\x0a\x0a</inhalt>\x0a</seite> 5456 1: seite 5457 2: \x0a 5458 3: seite 5459 5460/line\nbreak/I 5461Capture group count = 0 5462Contains explicit CR or LF match 5463First code unit = 'l' 5464Last code unit = 'k' 5465Subject length lower bound = 10 5466 this is a line\nbreak 5467 0: line\x0abreak 5468 line one\nthis is a line\nbreak in the second line 5469 0: line\x0abreak 5470 5471/line\nbreak/I,firstline 5472Capture group count = 0 5473Contains explicit CR or LF match 5474Options: firstline 5475First code unit = 'l' 5476Last code unit = 'k' 5477Subject length lower bound = 10 5478 this is a line\nbreak 5479 0: line\x0abreak 5480\= Expect no match 5481 line one\nthis is a line\nbreak in the second line 5482No match 5483 5484/line\nbreak/Im,firstline 5485Capture group count = 0 5486Contains explicit CR or LF match 5487Options: firstline multiline 5488First code unit = 'l' 5489Last code unit = 'k' 5490Subject length lower bound = 10 5491 this is a line\nbreak 5492 0: line\x0abreak 5493\= Expect no match 5494 line one\nthis is a line\nbreak in the second line 5495No match 5496 5497/(?i)(?-i)AbCd/I 5498Capture group count = 0 5499First code unit = 'A' 5500Last code unit = 'd' 5501Subject length lower bound = 4 5502 AbCd 5503 0: AbCd 5504\= Expect no match 5505 abcd 5506No match 5507 5508/a{11111111111111111111}/I 5509Failed: error 105 at offset 8: number too big in {} quantifier 5510 5511/(){64294967295}/I 5512Failed: error 105 at offset 9: number too big in {} quantifier 5513 5514/(){2,4294967295}/I 5515Failed: error 105 at offset 11: number too big in {} quantifier 5516 5517"(?i:a)(?i:b)(?i:c)(?i:d)(?i:e)(?i:f)(?i:g)(?i:h)(?i:i)(?i:j)(k)(?i:l)A\1B"I 5518Capture group count = 1 5519Max back reference = 1 5520First code unit = 'a' (caseless) 5521Last code unit = 'B' 5522Subject length lower bound = 15 5523 abcdefghijklAkB 5524 0: abcdefghijklAkB 5525 1: k 5526 5527"(?P<n0>a)(?P<n1>b)(?P<n2>c)(?P<n3>d)(?P<n4>e)(?P<n5>f)(?P<n6>g)(?P<n7>h)(?P<n8>i)(?P<n9>j)(?P<n10>k)(?P<n11>l)A\11B"I 5528Capture group count = 12 5529Max back reference = 11 5530Named capture groups: 5531 n0 1 5532 n1 2 5533 n10 11 5534 n11 12 5535 n2 3 5536 n3 4 5537 n4 5 5538 n5 6 5539 n6 7 5540 n7 8 5541 n8 9 5542 n9 10 5543First code unit = 'a' 5544Last code unit = 'B' 5545Subject length lower bound = 15 5546 abcdefghijklAkB 5547 0: abcdefghijklAkB 5548 1: a 5549 2: b 5550 3: c 5551 4: d 5552 5: e 5553 6: f 5554 7: g 5555 8: h 5556 9: i 555710: j 555811: k 555912: l 5560 5561"(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)A\11B"I 5562Capture group count = 12 5563Max back reference = 11 5564First code unit = 'a' 5565Last code unit = 'B' 5566Subject length lower bound = 15 5567 abcdefghijklAkB 5568 0: abcdefghijklAkB 5569 1: a 5570 2: b 5571 3: c 5572 4: d 5573 5: e 5574 6: f 5575 7: g 5576 8: h 5577 9: i 557810: j 557911: k 558012: l 5581 5582"(?P<name0>a)(?P<name1>a)(?P<name2>a)(?P<name3>a)(?P<name4>a)(?P<name5>a)(?P<name6>a)(?P<name7>a)(?P<name8>a)(?P<name9>a)(?P<name10>a)(?P<name11>a)(?P<name12>a)(?P<name13>a)(?P<name14>a)(?P<name15>a)(?P<name16>a)(?P<name17>a)(?P<name18>a)(?P<name19>a)(?P<name20>a)(?P<name21>a)(?P<name22>a)(?P<name23>a)(?P<name24>a)(?P<name25>a)(?P<name26>a)(?P<name27>a)(?P<name28>a)(?P<name29>a)(?P<name30>a)(?P<name31>a)(?P<name32>a)(?P<name33>a)(?P<name34>a)(?P<name35>a)(?P<name36>a)(?P<name37>a)(?P<name38>a)(?P<name39>a)(?P<name40>a)(?P<name41>a)(?P<name42>a)(?P<name43>a)(?P<name44>a)(?P<name45>a)(?P<name46>a)(?P<name47>a)(?P<name48>a)(?P<name49>a)(?P<name50>a)(?P<name51>a)(?P<name52>a)(?P<name53>a)(?P<name54>a)(?P<name55>a)(?P<name56>a)(?P<name57>a)(?P<name58>a)(?P<name59>a)(?P<name60>a)(?P<name61>a)(?P<name62>a)(?P<name63>a)(?P<name64>a)(?P<name65>a)(?P<name66>a)(?P<name67>a)(?P<name68>a)(?P<name69>a)(?P<name70>a)(?P<name71>a)(?P<name72>a)(?P<name73>a)(?P<name74>a)(?P<name75>a)(?P<name76>a)(?P<name77>a)(?P<name78>a)(?P<name79>a)(?P<name80>a)(?P<name81>a)(?P<name82>a)(?P<name83>a)(?P<name84>a)(?P<name85>a)(?P<name86>a)(?P<name87>a)(?P<name88>a)(?P<name89>a)(?P<name90>a)(?P<name91>a)(?P<name92>a)(?P<name93>a)(?P<name94>a)(?P<name95>a)(?P<name96>a)(?P<name97>a)(?P<name98>a)(?P<name99>a)(?P<name100>a)"I 5583Capture group count = 101 5584Named capture groups: 5585 name0 1 5586 name1 2 5587 name10 11 5588 name100 101 5589 name11 12 5590 name12 13 5591 name13 14 5592 name14 15 5593 name15 16 5594 name16 17 5595 name17 18 5596 name18 19 5597 name19 20 5598 name2 3 5599 name20 21 5600 name21 22 5601 name22 23 5602 name23 24 5603 name24 25 5604 name25 26 5605 name26 27 5606 name27 28 5607 name28 29 5608 name29 30 5609 name3 4 5610 name30 31 5611 name31 32 5612 name32 33 5613 name33 34 5614 name34 35 5615 name35 36 5616 name36 37 5617 name37 38 5618 name38 39 5619 name39 40 5620 name4 5 5621 name40 41 5622 name41 42 5623 name42 43 5624 name43 44 5625 name44 45 5626 name45 46 5627 name46 47 5628 name47 48 5629 name48 49 5630 name49 50 5631 name5 6 5632 name50 51 5633 name51 52 5634 name52 53 5635 name53 54 5636 name54 55 5637 name55 56 5638 name56 57 5639 name57 58 5640 name58 59 5641 name59 60 5642 name6 7 5643 name60 61 5644 name61 62 5645 name62 63 5646 name63 64 5647 name64 65 5648 name65 66 5649 name66 67 5650 name67 68 5651 name68 69 5652 name69 70 5653 name7 8 5654 name70 71 5655 name71 72 5656 name72 73 5657 name73 74 5658 name74 75 5659 name75 76 5660 name76 77 5661 name77 78 5662 name78 79 5663 name79 80 5664 name8 9 5665 name80 81 5666 name81 82 5667 name82 83 5668 name83 84 5669 name84 85 5670 name85 86 5671 name86 87 5672 name87 88 5673 name88 89 5674 name89 90 5675 name9 10 5676 name90 91 5677 name91 92 5678 name92 93 5679 name93 94 5680 name94 95 5681 name95 96 5682 name96 97 5683 name97 98 5684 name98 99 5685 name99 100 5686First code unit = 'a' 5687Last code unit = 'a' 5688Subject length lower bound = 101 5689 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 5690Matched, but too many substrings 5691 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 5692 1: a 5693 2: a 5694 3: a 5695 4: a 5696 5: a 5697 6: a 5698 7: a 5699 8: a 5700 9: a 570110: a 570211: a 570312: a 570413: a 570514: a 5706 5707"(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)"I 5708Capture group count = 101 5709First code unit = 'a' 5710Last code unit = 'a' 5711Subject length lower bound = 101 5712 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 5713Matched, but too many substrings 5714 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 5715 1: a 5716 2: a 5717 3: a 5718 4: a 5719 5: a 5720 6: a 5721 7: a 5722 8: a 5723 9: a 572410: a 572511: a 572612: a 572713: a 572814: a 5729 5730/[^()]*(?:\((?R)\)[^()]*)*/I 5731Capture group count = 0 5732May match empty string 5733Subject length lower bound = 0 5734 (this(and)that 5735 0: 5736 (this(and)that) 5737 0: (this(and)that) 5738 (this(and)that)stuff 5739 0: (this(and)that)stuff 5740 5741/[^()]*(?:\((?>(?R))\)[^()]*)*/I 5742Capture group count = 0 5743May match empty string 5744Subject length lower bound = 0 5745 (this(and)that 5746 0: 5747 (this(and)that) 5748 0: (this(and)that) 5749 5750/[^()]*(?:\((?R)\))*[^()]*/I 5751Capture group count = 0 5752May match empty string 5753Subject length lower bound = 0 5754 (this(and)that 5755 0: 5756 (this(and)that) 5757 0: (this(and)that) 5758 5759/(?:\((?R)\))*[^()]*/I 5760Capture group count = 0 5761May match empty string 5762Subject length lower bound = 0 5763 (this(and)that 5764 0: 5765 (this(and)that) 5766 0: 5767 ((this)) 5768 0: ((this)) 5769 5770/(?:\((?R)\))|[^()]*/I 5771Capture group count = 0 5772May match empty string 5773Subject length lower bound = 0 5774 (this(and)that 5775 0: 5776 (this(and)that) 5777 0: 5778 (this) 5779 0: (this) 5780 ((this)) 5781 0: ((this)) 5782 5783/\x{0000ff}/I 5784Capture group count = 0 5785First code unit = \xff 5786Subject length lower bound = 1 5787 5788/^((?P<A>a1)|(?P<A>a2)b)/I 5789Failed: error 143 at offset 18: two named subpatterns have the same name (PCRE2_DUPNAMES not set) 5790 5791/^((?P<A>a1)|(?P<A>a2)b)/I,dupnames 5792Capture group count = 3 5793Named capture groups: 5794 A 2 5795 A 3 5796Compile options: dupnames 5797Overall options: anchored dupnames 5798First code unit = 'a' 5799Subject length lower bound = 2 5800 a1b\=copy=A 5801 0: a1 5802 1: a1 5803 2: a1 5804 C a1 (2) A (non-unique) 5805 a2b\=copy=A 5806 0: a2b 5807 1: a2b 5808 2: <unset> 5809 3: a2 5810 C a2 (2) A (non-unique) 5811 a1b\=copy=Z,copy=A 5812 0: a1 5813 1: a1 5814 2: a1 5815Number not found for group 'Z' 5816Copy substring 'Z' failed (-49): unknown substring 5817 C a1 (2) A (non-unique) 5818 5819/(?|(?<a>)(?<b>)(?<a>)|(?<a>)(?<b>)(?<a>))/I,dupnames 5820Capture group count = 3 5821Named capture groups: 5822 a 1 5823 a 3 5824 b 2 5825May match empty string 5826Options: dupnames 5827Subject length lower bound = 0 5828 5829/^(?P<A>a)(?P<A>b)/I,dupnames 5830Capture group count = 2 5831Named capture groups: 5832 A 1 5833 A 2 5834Compile options: dupnames 5835Overall options: anchored dupnames 5836First code unit = 'a' 5837Subject length lower bound = 2 5838 ab\=copy=A 5839 0: ab 5840 1: a 5841 2: b 5842 C a (1) A (non-unique) 5843 5844/^(?P<A>a)(?P<A>b)|cd/I,dupnames 5845Capture group count = 2 5846Named capture groups: 5847 A 1 5848 A 2 5849Options: dupnames 5850Starting code units: a c 5851Subject length lower bound = 2 5852 ab\=copy=A 5853 0: ab 5854 1: a 5855 2: b 5856 C a (1) A (non-unique) 5857 cd\=copy=A 5858 0: cd 5859Copy substring 'A' failed (-55): requested value is not set 5860 5861/^(?P<A>a)(?P<A>b)|cd(?P<A>ef)(?P<A>gh)/I,dupnames 5862Capture group count = 4 5863Named capture groups: 5864 A 1 5865 A 2 5866 A 3 5867 A 4 5868Options: dupnames 5869Starting code units: a c 5870Subject length lower bound = 2 5871 cdefgh\=copy=A 5872 0: cdefgh 5873 1: <unset> 5874 2: <unset> 5875 3: ef 5876 4: gh 5877 C ef (2) A (non-unique) 5878 5879/^((?P<A>a1)|(?P<A>a2)b)/I,dupnames 5880Capture group count = 3 5881Named capture groups: 5882 A 2 5883 A 3 5884Compile options: dupnames 5885Overall options: anchored dupnames 5886First code unit = 'a' 5887Subject length lower bound = 2 5888 a1b\=get=A 5889 0: a1 5890 1: a1 5891 2: a1 5892 G a1 (2) A (non-unique) 5893 a2b\=get=A 5894 0: a2b 5895 1: a2b 5896 2: <unset> 5897 3: a2 5898 G a2 (2) A (non-unique) 5899 a1b\=get=Z,get=A 5900 0: a1 5901 1: a1 5902 2: a1 5903Number not found for group 'Z' 5904Get substring 'Z' failed (-49): unknown substring 5905 G a1 (2) A (non-unique) 5906 5907/^(?P<A>a)(?P<A>b)/I,dupnames 5908Capture group count = 2 5909Named capture groups: 5910 A 1 5911 A 2 5912Compile options: dupnames 5913Overall options: anchored dupnames 5914First code unit = 'a' 5915Subject length lower bound = 2 5916 ab\=get=A 5917 0: ab 5918 1: a 5919 2: b 5920 G a (1) A (non-unique) 5921 5922/^(?P<A>a)(?P<A>b)|cd/I,dupnames 5923Capture group count = 2 5924Named capture groups: 5925 A 1 5926 A 2 5927Options: dupnames 5928Starting code units: a c 5929Subject length lower bound = 2 5930 ab\=get=A 5931 0: ab 5932 1: a 5933 2: b 5934 G a (1) A (non-unique) 5935 cd\=get=A 5936 0: cd 5937Get substring 'A' failed (-55): requested value is not set 5938 5939/^(?P<A>a)(?P<A>b)|cd(?P<A>ef)(?P<A>gh)/I,dupnames 5940Capture group count = 4 5941Named capture groups: 5942 A 1 5943 A 2 5944 A 3 5945 A 4 5946Options: dupnames 5947Starting code units: a c 5948Subject length lower bound = 2 5949 cdefgh\=get=A 5950 0: cdefgh 5951 1: <unset> 5952 2: <unset> 5953 3: ef 5954 4: gh 5955 G ef (2) A (non-unique) 5956 5957/(?J)^((?P<A>a1)|(?P<A>a2)b)/I 5958Capture group count = 3 5959Named capture groups: 5960 A 2 5961 A 3 5962Compile options: <none> 5963Overall options: anchored 5964Duplicate name status changes 5965First code unit = 'a' 5966Subject length lower bound = 2 5967 a1b\=copy=A 5968 0: a1 5969 1: a1 5970 2: a1 5971 C a1 (2) A (non-unique) 5972 a2b\=copy=A 5973 0: a2b 5974 1: a2b 5975 2: <unset> 5976 3: a2 5977 C a2 (2) A (non-unique) 5978 5979/^(?P<A>a) (?J:(?P<B>b)(?P<B>c)) (?P<A>d)/I 5980Failed: error 143 at offset 38: two named subpatterns have the same name (PCRE2_DUPNAMES not set) 5981 5982# In this next test, J is not set at the outer level; consequently it isn't set 5983# in the pattern's options; consequently pcre2_substring_get_byname() produces 5984# a random value. 5985 5986/^(?P<A>a) (?J:(?P<B>b)(?P<B>c)) (?P<C>d)/I 5987Capture group count = 4 5988Named capture groups: 5989 A 1 5990 B 2 5991 B 3 5992 C 4 5993Compile options: <none> 5994Overall options: anchored 5995Duplicate name status changes 5996First code unit = 'a' 5997Subject length lower bound = 6 5998 a bc d\=copy=A,copy=B,copy=C 5999 0: a bc d 6000 1: a 6001 2: b 6002 3: c 6003 4: d 6004 C a (1) A (group 1) 6005 C b (1) B (non-unique) 6006 C d (1) C (group 4) 6007 6008/^(?P<A>a)?(?(A)a|b)/I 6009Capture group count = 1 6010Max back reference = 1 6011Named capture groups: 6012 A 1 6013Compile options: <none> 6014Overall options: anchored 6015Subject length lower bound = 1 6016 aabc 6017 0: aa 6018 1: a 6019 bc 6020 0: b 6021\= Expect no match 6022 abc 6023No match 6024 6025/(?:(?(ZZ)a|b)(?P<ZZ>X))+/I 6026Capture group count = 1 6027Max back reference = 1 6028Named capture groups: 6029 ZZ 1 6030Last code unit = 'X' 6031Subject length lower bound = 2 6032 bXaX 6033 0: bXaX 6034 1: X 6035 6036/(?:(?(2y)a|b)(X))+/I 6037Failed: error 124 at offset 7: missing closing parenthesis for condition 6038 6039/(?:(?(ZA)a|b)(?P<ZZ>X))+/I 6040Failed: error 115 at offset 6: reference to non-existent subpattern 6041 6042/(?:(?(ZZ)a|b)(?(ZZ)a|b)(?P<ZZ>X))+/I 6043Capture group count = 1 6044Max back reference = 1 6045Named capture groups: 6046 ZZ 1 6047Last code unit = 'X' 6048Subject length lower bound = 3 6049 bbXaaX 6050 0: bbXaaX 6051 1: X 6052 6053/(?:(?(ZZ)a|\(b\))\\(?P<ZZ>X))+/I 6054Capture group count = 1 6055Max back reference = 1 6056Named capture groups: 6057 ZZ 1 6058Last code unit = 'X' 6059Subject length lower bound = 3 6060 (b)\\Xa\\X 6061 0: (b)\Xa\X 6062 1: X 6063 6064/(?P<ABC/I 6065Failed: error 142 at offset 7: syntax error in subpattern name (missing terminator?) 6066 6067/(?:(?(A)(?P=A)a|b)(?P<A>X|Y))+/I 6068Capture group count = 1 6069Max back reference = 1 6070Named capture groups: 6071 A 1 6072Subject length lower bound = 2 6073 bXXaYYaY 6074 0: bXXaYYaY 6075 1: Y 6076 bXYaXXaX 6077 0: bX 6078 1: X 6079 6080/()()()()()()()()()(?:(?(A)(?P=A)a|b)(?P<A>X|Y))+/I 6081Capture group count = 10 6082Max back reference = 10 6083Named capture groups: 6084 A 10 6085Subject length lower bound = 2 6086 bXXaYYaY 6087 0: bXXaYYaY 6088 1: 6089 2: 6090 3: 6091 4: 6092 5: 6093 6: 6094 7: 6095 8: 6096 9: 609710: Y 6098 6099/\s*,\s*/I 6100Capture group count = 0 6101Starting code units: \x09 \x0a \x0b \x0c \x0d \x20 , 6102Last code unit = ',' 6103Subject length lower bound = 1 6104 \x0b,\x0b 6105 0: \x0b,\x0b 6106 \x0c,\x0d 6107 0: \x0c,\x0d 6108 6109/^abc/Im,newline=lf 6110Capture group count = 0 6111Options: multiline 6112Forced newline is LF 6113First code unit at start or follows newline 6114Last code unit = 'c' 6115Subject length lower bound = 3 6116 xyz\nabc 6117 0: abc 6118 xyz\r\nabc 6119 0: abc 6120\= Expect no match 6121 xyz\rabc 6122No match 6123 xyzabc\r 6124No match 6125 xyzabc\rpqr 6126No match 6127 xyzabc\r\n 6128No match 6129 xyzabc\r\npqr 6130No match 6131 6132/^abc/Im,newline=crlf 6133Capture group count = 0 6134Options: multiline 6135Forced newline is CRLF 6136First code unit at start or follows newline 6137Last code unit = 'c' 6138Subject length lower bound = 3 6139 xyz\r\nabclf> 6140 0: abc 6141\= Expect no match 6142 xyz\nabclf 6143No match 6144 xyz\rabclf 6145No match 6146 6147/^abc/Im,newline=cr 6148Capture group count = 0 6149Options: multiline 6150Forced newline is CR 6151First code unit at start or follows newline 6152Last code unit = 'c' 6153Subject length lower bound = 3 6154 xyz\rabc 6155 0: abc 6156\= Expect no match 6157 xyz\nabc 6158No match 6159 xyz\r\nabc 6160No match 6161 6162/^abc/Im,newline=bad 6163** Invalid value in 'newline=bad' 6164 6165/.*/I,newline=lf 6166Capture group count = 0 6167May match empty string 6168Forced newline is LF 6169First code unit at start or follows newline 6170Subject length lower bound = 0 6171 abc\ndef 6172 0: abc 6173 abc\rdef 6174 0: abc\x0ddef 6175 abc\r\ndef 6176 0: abc\x0d 6177 6178/.*/I,newline=cr 6179Capture group count = 0 6180May match empty string 6181Forced newline is CR 6182First code unit at start or follows newline 6183Subject length lower bound = 0 6184 abc\ndef 6185 0: abc\x0adef 6186 abc\rdef 6187 0: abc 6188 abc\r\ndef 6189 0: abc 6190 6191/.*/I,newline=crlf 6192Capture group count = 0 6193May match empty string 6194Forced newline is CRLF 6195First code unit at start or follows newline 6196Subject length lower bound = 0 6197 abc\ndef 6198 0: abc\x0adef 6199 abc\rdef 6200 0: abc\x0ddef 6201 abc\r\ndef 6202 0: abc 6203 6204/\w+(.)(.)?def/Is 6205Capture group count = 2 6206Options: dotall 6207Starting code units: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 6208 Q R S T U V W X Y Z _ 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 z 6209Last code unit = 'f' 6210Subject length lower bound = 5 6211 abc\ndef 6212 0: abc\x0adef 6213 1: \x0a 6214 abc\rdef 6215 0: abc\x0ddef 6216 1: \x0d 6217 abc\r\ndef 6218 0: abc\x0d\x0adef 6219 1: \x0d 6220 2: \x0a 6221 6222/(?P<B>25[0-5]|2[0-4]\d|[01]?\d?\d)(?:\.(?P>B)){3}/I 6223Capture group count = 1 6224Named capture groups: 6225 B 1 6226Starting code units: 0 1 2 3 4 5 6 7 8 9 6227Last code unit = '.' 6228Subject length lower bound = 7 6229 6230/()()()()()()()()()()()()()()()()()()()() 6231 ()()()()()()()()()()()()()()()()()()()() 6232 ()()()()()()()()()()()()()()()()()()()() 6233 ()()()()()()()()()()()()()()()()()()()() 6234 ()()()()()()()()()()()()()()()()()()()() 6235 (.(.))/Ix 6236Capture group count = 102 6237Options: extended 6238Subject length lower bound = 2 6239 XY\=ovector=133 6240 0: XY 6241 1: 6242 2: 6243 3: 6244 4: 6245 5: 6246 6: 6247 7: 6248 8: 6249 9: 625010: 625111: 625212: 625313: 625414: 625515: 625616: 625717: 625818: 625919: 626020: 626121: 626222: 626323: 626424: 626525: 626626: 626727: 626828: 626929: 627030: 627131: 627232: 627333: 627434: 627535: 627636: 627737: 627838: 627939: 628040: 628141: 628242: 628343: 628444: 628545: 628646: 628747: 628848: 628949: 629050: 629151: 629252: 629353: 629454: 629555: 629656: 629757: 629858: 629959: 630060: 630161: 630262: 630363: 630464: 630565: 630666: 630767: 630868: 630969: 631070: 631171: 631272: 631373: 631474: 631575: 631676: 631777: 631878: 631979: 632080: 632181: 632282: 632383: 632484: 632585: 632686: 632787: 632888: 632989: 633090: 633191: 633292: 633393: 633494: 633595: 633696: 633797: 633898: 633999: 6340100: 6341101: XY 6342102: Y 6343 6344/(a*b|(?i:c*(?-i)d))/I 6345Capture group count = 1 6346Starting code units: C a b c d 6347Subject length lower bound = 1 6348 6349/()[ab]xyz/I 6350Capture group count = 1 6351Starting code units: a b 6352Last code unit = 'z' 6353Subject length lower bound = 4 6354 6355/(|)[ab]xyz/I 6356Capture group count = 1 6357Starting code units: a b 6358Last code unit = 'z' 6359Subject length lower bound = 4 6360 6361/(|c)[ab]xyz/I 6362Capture group count = 1 6363Starting code units: a b c 6364Last code unit = 'z' 6365Subject length lower bound = 4 6366 6367/(|c?)[ab]xyz/I 6368Capture group count = 1 6369Starting code units: a b c 6370Last code unit = 'z' 6371Subject length lower bound = 4 6372 6373/(d?|c?)[ab]xyz/I 6374Capture group count = 1 6375Starting code units: a b c d 6376Last code unit = 'z' 6377Subject length lower bound = 4 6378 6379/(d?|c)[ab]xyz/I 6380Capture group count = 1 6381Starting code units: a b c d 6382Last code unit = 'z' 6383Subject length lower bound = 4 6384 6385/^a*b\d/IB 6386------------------------------------------------------------------ 6387 Bra 6388 ^ 6389 a*+ 6390 b 6391 \d 6392 Ket 6393 End 6394------------------------------------------------------------------ 6395Capture group count = 0 6396Compile options: <none> 6397Overall options: anchored 6398Starting code units: a b 6399Last code unit = 'b' 6400Subject length lower bound = 2 6401 6402/^a*+b\d/IB 6403------------------------------------------------------------------ 6404 Bra 6405 ^ 6406 a*+ 6407 b 6408 \d 6409 Ket 6410 End 6411------------------------------------------------------------------ 6412Capture group count = 0 6413Compile options: <none> 6414Overall options: anchored 6415Starting code units: a b 6416Last code unit = 'b' 6417Subject length lower bound = 2 6418 6419/^a*?b\d/IB 6420------------------------------------------------------------------ 6421 Bra 6422 ^ 6423 a*+ 6424 b 6425 \d 6426 Ket 6427 End 6428------------------------------------------------------------------ 6429Capture group count = 0 6430Compile options: <none> 6431Overall options: anchored 6432Starting code units: a b 6433Last code unit = 'b' 6434Subject length lower bound = 2 6435 6436/^a+A\d/IB 6437------------------------------------------------------------------ 6438 Bra 6439 ^ 6440 a++ 6441 A 6442 \d 6443 Ket 6444 End 6445------------------------------------------------------------------ 6446Capture group count = 0 6447Compile options: <none> 6448Overall options: anchored 6449First code unit = 'a' 6450Last code unit = 'A' 6451Subject length lower bound = 3 6452 aaaA5 6453 0: aaaA5 6454\= Expect no match 6455 aaaa5 6456No match 6457 6458/^a*A\d/IBi 6459------------------------------------------------------------------ 6460 Bra 6461 ^ 6462 /i a* 6463 /i A 6464 \d 6465 Ket 6466 End 6467------------------------------------------------------------------ 6468Capture group count = 0 6469Compile options: caseless 6470Overall options: anchored caseless 6471Starting code units: A a 6472Last code unit = 'A' (caseless) 6473Subject length lower bound = 2 6474 aaaA5 6475 0: aaaA5 6476 aaaa5 6477 0: aaaa5 6478 a5 6479 0: a5 6480 6481/(a*|b*)[cd]/I 6482Capture group count = 1 6483Starting code units: a b c d 6484Subject length lower bound = 1 6485 6486/(a+|b*)[cd]/I 6487Capture group count = 1 6488Starting code units: a b c d 6489Subject length lower bound = 1 6490 6491/(a*|b+)[cd]/I 6492Capture group count = 1 6493Starting code units: a b c d 6494Subject length lower bound = 1 6495 6496/(a+|b+)[cd]/I 6497Capture group count = 1 6498Starting code units: a b 6499Subject length lower bound = 2 6500 6501/(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( 6502 (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( 6503 ((( 6504 a 6505 )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 6506 )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 6507 ))) 6508/Ix 6509Capture group count = 203 6510Options: extended 6511First code unit = 'a' 6512Subject length lower bound = 1 6513 large nest 6514Matched, but too many substrings 6515 0: a 6516 1: a 6517 2: a 6518 3: a 6519 4: a 6520 5: a 6521 6: a 6522 7: a 6523 8: a 6524 9: a 652510: a 652611: a 652712: a 652813: a 652914: a 6530 6531/a*\d/B 6532------------------------------------------------------------------ 6533 Bra 6534 a*+ 6535 \d 6536 Ket 6537 End 6538------------------------------------------------------------------ 6539 6540/a*\D/B 6541------------------------------------------------------------------ 6542 Bra 6543 a* 6544 \D 6545 Ket 6546 End 6547------------------------------------------------------------------ 6548 6549/0*\d/B 6550------------------------------------------------------------------ 6551 Bra 6552 0* 6553 \d 6554 Ket 6555 End 6556------------------------------------------------------------------ 6557 6558/0*\D/B 6559------------------------------------------------------------------ 6560 Bra 6561 0*+ 6562 \D 6563 Ket 6564 End 6565------------------------------------------------------------------ 6566 6567/a*\s/B 6568------------------------------------------------------------------ 6569 Bra 6570 a*+ 6571 \s 6572 Ket 6573 End 6574------------------------------------------------------------------ 6575 6576/a*\S/B 6577------------------------------------------------------------------ 6578 Bra 6579 a* 6580 \S 6581 Ket 6582 End 6583------------------------------------------------------------------ 6584 6585/ *\s/B 6586------------------------------------------------------------------ 6587 Bra 6588 * 6589 \s 6590 Ket 6591 End 6592------------------------------------------------------------------ 6593 6594/ *\S/B 6595------------------------------------------------------------------ 6596 Bra 6597 *+ 6598 \S 6599 Ket 6600 End 6601------------------------------------------------------------------ 6602 6603/a*\w/B 6604------------------------------------------------------------------ 6605 Bra 6606 a* 6607 \w 6608 Ket 6609 End 6610------------------------------------------------------------------ 6611 6612/a*\W/B 6613------------------------------------------------------------------ 6614 Bra 6615 a*+ 6616 \W 6617 Ket 6618 End 6619------------------------------------------------------------------ 6620 6621/=*\w/B 6622------------------------------------------------------------------ 6623 Bra 6624 =*+ 6625 \w 6626 Ket 6627 End 6628------------------------------------------------------------------ 6629 6630/=*\W/B 6631------------------------------------------------------------------ 6632 Bra 6633 =* 6634 \W 6635 Ket 6636 End 6637------------------------------------------------------------------ 6638 6639/\d*a/B 6640------------------------------------------------------------------ 6641 Bra 6642 \d*+ 6643 a 6644 Ket 6645 End 6646------------------------------------------------------------------ 6647 6648/\d*2/B 6649------------------------------------------------------------------ 6650 Bra 6651 \d* 6652 2 6653 Ket 6654 End 6655------------------------------------------------------------------ 6656 6657/\d*\d/B 6658------------------------------------------------------------------ 6659 Bra 6660 \d* 6661 \d 6662 Ket 6663 End 6664------------------------------------------------------------------ 6665 6666/\d*\D/B 6667------------------------------------------------------------------ 6668 Bra 6669 \d*+ 6670 \D 6671 Ket 6672 End 6673------------------------------------------------------------------ 6674 6675/\d*\s/B 6676------------------------------------------------------------------ 6677 Bra 6678 \d*+ 6679 \s 6680 Ket 6681 End 6682------------------------------------------------------------------ 6683 6684/\d*\S/B 6685------------------------------------------------------------------ 6686 Bra 6687 \d* 6688 \S 6689 Ket 6690 End 6691------------------------------------------------------------------ 6692 6693/\d*\w/B 6694------------------------------------------------------------------ 6695 Bra 6696 \d* 6697 \w 6698 Ket 6699 End 6700------------------------------------------------------------------ 6701 6702/\d*\W/B 6703------------------------------------------------------------------ 6704 Bra 6705 \d*+ 6706 \W 6707 Ket 6708 End 6709------------------------------------------------------------------ 6710 6711/\D*a/B 6712------------------------------------------------------------------ 6713 Bra 6714 \D* 6715 a 6716 Ket 6717 End 6718------------------------------------------------------------------ 6719 6720/\D*2/B 6721------------------------------------------------------------------ 6722 Bra 6723 \D*+ 6724 2 6725 Ket 6726 End 6727------------------------------------------------------------------ 6728 6729/\D*\d/B 6730------------------------------------------------------------------ 6731 Bra 6732 \D*+ 6733 \d 6734 Ket 6735 End 6736------------------------------------------------------------------ 6737 6738/\D*\D/B 6739------------------------------------------------------------------ 6740 Bra 6741 \D* 6742 \D 6743 Ket 6744 End 6745------------------------------------------------------------------ 6746 6747/\D*\s/B 6748------------------------------------------------------------------ 6749 Bra 6750 \D* 6751 \s 6752 Ket 6753 End 6754------------------------------------------------------------------ 6755 6756/\D*\S/B 6757------------------------------------------------------------------ 6758 Bra 6759 \D* 6760 \S 6761 Ket 6762 End 6763------------------------------------------------------------------ 6764 6765/\D*\w/B 6766------------------------------------------------------------------ 6767 Bra 6768 \D* 6769 \w 6770 Ket 6771 End 6772------------------------------------------------------------------ 6773 6774/\D*\W/B 6775------------------------------------------------------------------ 6776 Bra 6777 \D* 6778 \W 6779 Ket 6780 End 6781------------------------------------------------------------------ 6782 6783/\s*a/B 6784------------------------------------------------------------------ 6785 Bra 6786 \s*+ 6787 a 6788 Ket 6789 End 6790------------------------------------------------------------------ 6791 6792/\s*2/B 6793------------------------------------------------------------------ 6794 Bra 6795 \s*+ 6796 2 6797 Ket 6798 End 6799------------------------------------------------------------------ 6800 6801/\s*\d/B 6802------------------------------------------------------------------ 6803 Bra 6804 \s*+ 6805 \d 6806 Ket 6807 End 6808------------------------------------------------------------------ 6809 6810/\s*\D/B 6811------------------------------------------------------------------ 6812 Bra 6813 \s* 6814 \D 6815 Ket 6816 End 6817------------------------------------------------------------------ 6818 6819/\s*\s/B 6820------------------------------------------------------------------ 6821 Bra 6822 \s* 6823 \s 6824 Ket 6825 End 6826------------------------------------------------------------------ 6827 6828/\s*\S/B 6829------------------------------------------------------------------ 6830 Bra 6831 \s*+ 6832 \S 6833 Ket 6834 End 6835------------------------------------------------------------------ 6836 6837/\s*\w/B 6838------------------------------------------------------------------ 6839 Bra 6840 \s*+ 6841 \w 6842 Ket 6843 End 6844------------------------------------------------------------------ 6845 6846/\s*\W/B 6847------------------------------------------------------------------ 6848 Bra 6849 \s* 6850 \W 6851 Ket 6852 End 6853------------------------------------------------------------------ 6854 6855/\S*a/B 6856------------------------------------------------------------------ 6857 Bra 6858 \S* 6859 a 6860 Ket 6861 End 6862------------------------------------------------------------------ 6863 6864/\S*2/B 6865------------------------------------------------------------------ 6866 Bra 6867 \S* 6868 2 6869 Ket 6870 End 6871------------------------------------------------------------------ 6872 6873/\S*\d/B 6874------------------------------------------------------------------ 6875 Bra 6876 \S* 6877 \d 6878 Ket 6879 End 6880------------------------------------------------------------------ 6881 6882/\S*\D/B 6883------------------------------------------------------------------ 6884 Bra 6885 \S* 6886 \D 6887 Ket 6888 End 6889------------------------------------------------------------------ 6890 6891/\S*\s/B 6892------------------------------------------------------------------ 6893 Bra 6894 \S*+ 6895 \s 6896 Ket 6897 End 6898------------------------------------------------------------------ 6899 6900/\S*\S/B 6901------------------------------------------------------------------ 6902 Bra 6903 \S* 6904 \S 6905 Ket 6906 End 6907------------------------------------------------------------------ 6908 6909/\S*\w/B 6910------------------------------------------------------------------ 6911 Bra 6912 \S* 6913 \w 6914 Ket 6915 End 6916------------------------------------------------------------------ 6917 6918/\S*\W/B 6919------------------------------------------------------------------ 6920 Bra 6921 \S* 6922 \W 6923 Ket 6924 End 6925------------------------------------------------------------------ 6926 6927/\w*a/B 6928------------------------------------------------------------------ 6929 Bra 6930 \w* 6931 a 6932 Ket 6933 End 6934------------------------------------------------------------------ 6935 6936/\w*2/B 6937------------------------------------------------------------------ 6938 Bra 6939 \w* 6940 2 6941 Ket 6942 End 6943------------------------------------------------------------------ 6944 6945/\w*\d/B 6946------------------------------------------------------------------ 6947 Bra 6948 \w* 6949 \d 6950 Ket 6951 End 6952------------------------------------------------------------------ 6953 6954/\w*\D/B 6955------------------------------------------------------------------ 6956 Bra 6957 \w* 6958 \D 6959 Ket 6960 End 6961------------------------------------------------------------------ 6962 6963/\w*\s/B 6964------------------------------------------------------------------ 6965 Bra 6966 \w*+ 6967 \s 6968 Ket 6969 End 6970------------------------------------------------------------------ 6971 6972/\w*\S/B 6973------------------------------------------------------------------ 6974 Bra 6975 \w* 6976 \S 6977 Ket 6978 End 6979------------------------------------------------------------------ 6980 6981/\w*\w/B 6982------------------------------------------------------------------ 6983 Bra 6984 \w* 6985 \w 6986 Ket 6987 End 6988------------------------------------------------------------------ 6989 6990/\w*\W/B 6991------------------------------------------------------------------ 6992 Bra 6993 \w*+ 6994 \W 6995 Ket 6996 End 6997------------------------------------------------------------------ 6998 6999/\W*a/B 7000------------------------------------------------------------------ 7001 Bra 7002 \W*+ 7003 a 7004 Ket 7005 End 7006------------------------------------------------------------------ 7007 7008/\W*2/B 7009------------------------------------------------------------------ 7010 Bra 7011 \W*+ 7012 2 7013 Ket 7014 End 7015------------------------------------------------------------------ 7016 7017/\W*\d/B 7018------------------------------------------------------------------ 7019 Bra 7020 \W*+ 7021 \d 7022 Ket 7023 End 7024------------------------------------------------------------------ 7025 7026/\W*\D/B 7027------------------------------------------------------------------ 7028 Bra 7029 \W* 7030 \D 7031 Ket 7032 End 7033------------------------------------------------------------------ 7034 7035/\W*\s/B 7036------------------------------------------------------------------ 7037 Bra 7038 \W* 7039 \s 7040 Ket 7041 End 7042------------------------------------------------------------------ 7043 7044/\W*\S/B 7045------------------------------------------------------------------ 7046 Bra 7047 \W* 7048 \S 7049 Ket 7050 End 7051------------------------------------------------------------------ 7052 7053/\W*\w/B 7054------------------------------------------------------------------ 7055 Bra 7056 \W*+ 7057 \w 7058 Ket 7059 End 7060------------------------------------------------------------------ 7061 7062/\W*\W/B 7063------------------------------------------------------------------ 7064 Bra 7065 \W* 7066 \W 7067 Ket 7068 End 7069------------------------------------------------------------------ 7070 7071/[^a]+a/B 7072------------------------------------------------------------------ 7073 Bra 7074 [^a]++ 7075 a 7076 Ket 7077 End 7078------------------------------------------------------------------ 7079 7080/[^a]+a/Bi 7081------------------------------------------------------------------ 7082 Bra 7083 /i [^a]++ 7084 /i a 7085 Ket 7086 End 7087------------------------------------------------------------------ 7088 7089/[^a]+A/Bi 7090------------------------------------------------------------------ 7091 Bra 7092 /i [^a]++ 7093 /i A 7094 Ket 7095 End 7096------------------------------------------------------------------ 7097 7098/[^a]+b/B 7099------------------------------------------------------------------ 7100 Bra 7101 [^a]+ 7102 b 7103 Ket 7104 End 7105------------------------------------------------------------------ 7106 7107/[^a]+\d/B 7108------------------------------------------------------------------ 7109 Bra 7110 [^a]+ 7111 \d 7112 Ket 7113 End 7114------------------------------------------------------------------ 7115 7116/a*[^a]/B 7117------------------------------------------------------------------ 7118 Bra 7119 a*+ 7120 [^a] 7121 Ket 7122 End 7123------------------------------------------------------------------ 7124 7125/(?P<abc>x)(?P<xyz>y)/I 7126Capture group count = 2 7127Named capture groups: 7128 abc 1 7129 xyz 2 7130First code unit = 'x' 7131Last code unit = 'y' 7132Subject length lower bound = 2 7133 xy\=copy=abc,copy=xyz 7134 0: xy 7135 1: x 7136 2: y 7137 C x (1) abc (group 1) 7138 C y (1) xyz (group 2) 7139 7140/(?<abc>x)(?'xyz'y)/I 7141Capture group count = 2 7142Named capture groups: 7143 abc 1 7144 xyz 2 7145First code unit = 'x' 7146Last code unit = 'y' 7147Subject length lower bound = 2 7148 xy\=copy=abc,copy=xyz 7149 0: xy 7150 1: x 7151 2: y 7152 C x (1) abc (group 1) 7153 C y (1) xyz (group 2) 7154 7155/(?<abc'x)(?'xyz'y)/I 7156Failed: error 142 at offset 6: syntax error in subpattern name (missing terminator?) 7157 7158/(?<abc>x)(?'xyz>y)/I 7159Failed: error 142 at offset 15: syntax error in subpattern name (missing terminator?) 7160 7161/(?P'abc'x)(?P<xyz>y)/I 7162Failed: error 141 at offset 3: unrecognized character after (?P 7163 7164/^(?:(?(ZZ)a|b)(?<ZZ>X))+/ 7165 bXaX 7166 0: bXaX 7167 1: X 7168 bXbX 7169 0: bX 7170 1: X 7171\= Expect no match 7172 aXaX 7173No match 7174 aXbX 7175No match 7176 7177/^(?P>abc)(?<abcd>xxx)/ 7178Failed: error 115 at offset 5: reference to non-existent subpattern 7179 7180/^(?P>abc)(?<abc>x|y)/ 7181 xx 7182 0: xx 7183 1: x 7184 xy 7185 0: xy 7186 1: y 7187 yy 7188 0: yy 7189 1: y 7190 yx 7191 0: yx 7192 1: x 7193 7194/^(?P>abc)(?P<abc>x|y)/ 7195 xx 7196 0: xx 7197 1: x 7198 xy 7199 0: xy 7200 1: y 7201 yy 7202 0: yy 7203 1: y 7204 yx 7205 0: yx 7206 1: x 7207 7208/^((?(abc)a|b)(?<abc>x|y))+/ 7209 bxay 7210 0: bxay 7211 1: ay 7212 2: y 7213 bxby 7214 0: bx 7215 1: bx 7216 2: x 7217\= Expect no match 7218 axby 7219No match 7220 7221/^(((?P=abc)|X)(?<abc>x|y))+/ 7222 XxXxxx 7223 0: XxXxxx 7224 1: xx 7225 2: x 7226 3: x 7227 XxXyyx 7228 0: XxXyyx 7229 1: yx 7230 2: y 7231 3: x 7232 XxXyxx 7233 0: XxXy 7234 1: Xy 7235 2: X 7236 3: y 7237\= Expect no match 7238 x 7239No match 7240 7241/^(?1)(abc)/ 7242 abcabc 7243 0: abcabc 7244 1: abc 7245 7246/^(?:(?:\1|X)(a|b))+/ 7247 Xaaa 7248 0: Xaaa 7249 1: a 7250 Xaba 7251 0: Xa 7252 1: a 7253 7254/^[\E\Qa\E-\Qz\E]+/B 7255------------------------------------------------------------------ 7256 Bra 7257 ^ 7258 [a-z]++ 7259 Ket 7260 End 7261------------------------------------------------------------------ 7262 7263/^[a\Q]bc\E]/B 7264------------------------------------------------------------------ 7265 Bra 7266 ^ 7267 [\]a-c] 7268 Ket 7269 End 7270------------------------------------------------------------------ 7271 7272/^[a-\Q\E]/B 7273------------------------------------------------------------------ 7274 Bra 7275 ^ 7276 [\-a] 7277 Ket 7278 End 7279------------------------------------------------------------------ 7280 7281/^(?P>abc)[()](?<abc>)/B 7282------------------------------------------------------------------ 7283 Bra 7284 ^ 7285 Recurse 7286 [()] 7287 CBra 1 7288 Ket 7289 Ket 7290 End 7291------------------------------------------------------------------ 7292 7293/^((?(abc)y)[()](?P<abc>x))+/B 7294------------------------------------------------------------------ 7295 Bra 7296 ^ 7297 CBra 1 7298 Cond 7299 2 Cond ref 7300 y 7301 Ket 7302 [()] 7303 CBra 2 7304 x 7305 Ket 7306 KetRmax 7307 Ket 7308 End 7309------------------------------------------------------------------ 7310 (xy)x 7311 0: (xy)x 7312 1: y)x 7313 2: x 7314 7315/^(?P>abc)\Q()\E(?<abc>)/B 7316------------------------------------------------------------------ 7317 Bra 7318 ^ 7319 Recurse 7320 () 7321 CBra 1 7322 Ket 7323 Ket 7324 End 7325------------------------------------------------------------------ 7326 7327/^(?P>abc)[a\Q(]\E(](?<abc>)/B 7328------------------------------------------------------------------ 7329 Bra 7330 ^ 7331 Recurse 7332 [(\]a] 7333 CBra 1 7334 Ket 7335 Ket 7336 End 7337------------------------------------------------------------------ 7338 7339/^(?P>abc) # this is (a comment) 7340 (?<abc>)/Bx 7341------------------------------------------------------------------ 7342 Bra 7343 ^ 7344 Recurse 7345 CBra 1 7346 Ket 7347 Ket 7348 End 7349------------------------------------------------------------------ 7350 7351/^\W*(?:(?<one>(?<two>.)\W*(?&one)\W*\k<two>|)|(?<three>(?<four>.)\W*(?&three)\W*\k'four'|\W*.\W*))\W*$/Ii 7352Capture group count = 4 7353Max back reference = 4 7354Named capture groups: 7355 four 4 7356 one 1 7357 three 3 7358 two 2 7359May match empty string 7360Compile options: caseless 7361Overall options: anchored caseless 7362Subject length lower bound = 0 7363 1221 7364 0: 1221 7365 1: 1221 7366 2: 1 7367 Satan, oscillate my metallic sonatas! 7368 0: Satan, oscillate my metallic sonatas! 7369 1: <unset> 7370 2: <unset> 7371 3: Satan, oscillate my metallic sonatas 7372 4: S 7373 A man, a plan, a canal: Panama! 7374 0: A man, a plan, a canal: Panama! 7375 1: <unset> 7376 2: <unset> 7377 3: A man, a plan, a canal: Panama 7378 4: A 7379 Able was I ere I saw Elba. 7380 0: Able was I ere I saw Elba. 7381 1: <unset> 7382 2: <unset> 7383 3: Able was I ere I saw Elba 7384 4: A 7385\= Expect no match 7386 The quick brown fox 7387No match 7388 7389/(?=(\w+))\1:/I 7390Capture group count = 1 7391Max back reference = 1 7392Starting code units: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 7393 Q R S T U V W X Y Z _ 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 z 7394Last code unit = ':' 7395Subject length lower bound = 2 7396 abcd: 7397 0: abcd: 7398 1: abcd 7399 7400/(?=(?'abc'\w+))\k<abc>:/I 7401Capture group count = 1 7402Max back reference = 1 7403Named capture groups: 7404 abc 1 7405Starting code units: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P 7406 Q R S T U V W X Y Z _ 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 z 7407Last code unit = ':' 7408Subject length lower bound = 2 7409 abcd: 7410 0: abcd: 7411 1: abcd 7412 7413/(?'abc'a|b)(?<abc>d|e)\k<abc>{2}/dupnames 7414 adaa 7415 0: adaa 7416 1: a 7417 2: d 7418\= Expect no match 7419 addd 7420No match 7421 adbb 7422No match 7423 7424/(?'abc'a|b)(?<abc>d|e)(?&abc){2}/dupnames 7425 bdaa 7426 0: bdaa 7427 1: b 7428 2: d 7429 bdab 7430 0: bdab 7431 1: b 7432 2: d 7433\= Expect no match 7434 bddd 7435No match 7436 7437/(?(<bc))/ 7438Failed: error 142 at offset 6: syntax error in subpattern name (missing terminator?) 7439 7440/(?(''))/ 7441Failed: error 162 at offset 4: subpattern name expected 7442 7443/(?('R')stuff)/ 7444Failed: error 115 at offset 4: reference to non-existent subpattern 7445 7446/((abc (?(R) (?(R1)1) (?(R2)2) X | (?1) (?2) (?R) ))) /x 7447 abcabc1Xabc2XabcXabcabc 7448 0: abcabc1Xabc2XabcX 7449 1: abcabc1Xabc2XabcX 7450 2: abcabc1Xabc2XabcX 7451 7452/(?<A> (?'B' abc (?(R) (?(R&A)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x 7453 abcabc1Xabc2XabcXabcabc 7454 0: abcabc1Xabc2XabcX 7455 1: abcabc1Xabc2XabcX 7456 2: abcabc1Xabc2XabcX 7457 7458/(?<A> (?'B' abc (?(R) (?(R&C)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x 7459Failed: error 115 at offset 27: reference to non-existent subpattern 7460 7461/^(?(DEFINE) abc | xyz ) /x 7462Failed: error 154 at offset 4: DEFINE subpattern contains more than one branch 7463 7464/(?(DEFINE) abc) xyz/Ix 7465Capture group count = 0 7466Options: extended 7467First code unit = 'x' 7468Last code unit = 'z' 7469Subject length lower bound = 3 7470 7471/(a|)*\d/ 7472 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4\=ovector=0 7473 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 7474 1: 7475\= Expect no match 7476 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\=ovector=0 7477No match 7478 7479/^a.b/newline=lf 7480 a\rb 7481 0: a\x0db 7482\= Expect no match 7483 a\nb 7484No match 7485 7486/^a.b/newline=cr 7487 a\nb 7488 0: a\x0ab 7489\= Expect no match 7490 a\rb 7491No match 7492 7493/^a.b/newline=anycrlf 7494 a\x85b 7495 0: a\x85b 7496\= Expect no match 7497 a\rb 7498No match 7499 7500/^a.b/newline=any 7501\= Expect no match 7502 a\nb 7503No match 7504 a\rb 7505No match 7506 a\x85b 7507No match 7508 7509/^abc./gmx,newline=any 7510 abc1 \x0aabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\x0aabc6 \x85abc7 JUNK 7511 0: abc1 7512 0: abc2 7513 0: abc3 7514 0: abc4 7515 0: abc5 7516 0: abc6 7517 0: abc7 7518 7519/abc.$/gmx,newline=any 7520 abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc7 abc9 7521 0: abc1 7522 0: abc2 7523 0: abc3 7524 0: abc4 7525 0: abc5 7526 0: abc6 7527 0: abc9 7528 7529/^a\Rb/bsr=unicode 7530 a\nb 7531 0: a\x0ab 7532 a\rb 7533 0: a\x0db 7534 a\r\nb 7535 0: a\x0d\x0ab 7536 a\x0bb 7537 0: a\x0bb 7538 a\x0cb 7539 0: a\x0cb 7540 a\x85b 7541 0: a\x85b 7542\= Expect no match 7543 a\n\rb 7544No match 7545 7546/^a\R*b/bsr=unicode 7547 ab 7548 0: ab 7549 a\nb 7550 0: a\x0ab 7551 a\rb 7552 0: a\x0db 7553 a\r\nb 7554 0: a\x0d\x0ab 7555 a\x0bb 7556 0: a\x0bb 7557 a\x0cb 7558 0: a\x0cb 7559 a\x85b 7560 0: a\x85b 7561 a\n\rb 7562 0: a\x0a\x0db 7563 a\n\r\x85\x0cb 7564 0: a\x0a\x0d\x85\x0cb 7565 7566/^a\R+b/bsr=unicode 7567 a\nb 7568 0: a\x0ab 7569 a\rb 7570 0: a\x0db 7571 a\r\nb 7572 0: a\x0d\x0ab 7573 a\x0bb 7574 0: a\x0bb 7575 a\x0cb 7576 0: a\x0cb 7577 a\x85b 7578 0: a\x85b 7579 a\n\rb 7580 0: a\x0a\x0db 7581 a\n\r\x85\x0cb 7582 0: a\x0a\x0d\x85\x0cb 7583\= Expect no match 7584 ab 7585No match 7586 7587/^a\R{1,3}b/bsr=unicode 7588 a\nb 7589 0: a\x0ab 7590 a\n\rb 7591 0: a\x0a\x0db 7592 a\n\r\x85b 7593 0: a\x0a\x0d\x85b 7594 a\r\n\r\nb 7595 0: a\x0d\x0a\x0d\x0ab 7596 a\r\n\r\n\r\nb 7597 0: a\x0d\x0a\x0d\x0a\x0d\x0ab 7598 a\n\r\n\rb 7599 0: a\x0a\x0d\x0a\x0db 7600 a\n\n\r\nb 7601 0: a\x0a\x0a\x0d\x0ab 7602\= Expect no match 7603 a\n\n\n\rb 7604No match 7605 a\r 7606No match 7607 7608/(?&abc)X(?<abc>P)/I 7609Capture group count = 1 7610Named capture groups: 7611 abc 1 7612Last code unit = 'P' 7613Subject length lower bound = 3 7614 abcPXP123 7615 0: PXP 7616 1: P 7617 7618/(?1)X(?<abc>P)/I 7619Capture group count = 1 7620Named capture groups: 7621 abc 1 7622Last code unit = 'P' 7623Subject length lower bound = 3 7624 abcPXP123 7625 0: PXP 7626 1: P 7627 7628/(?:a(?&abc)b)*(?<abc>x)/ 7629 123axbaxbaxbx456 7630 0: axbaxbaxbx 7631 1: x 7632 123axbaxbaxb456 7633 0: x 7634 1: x 7635 7636/(?:a(?&abc)b){1,5}(?<abc>x)/ 7637 123axbaxbaxbx456 7638 0: axbaxbaxbx 7639 1: x 7640 7641/(?:a(?&abc)b){2,5}(?<abc>x)/ 7642 123axbaxbaxbx456 7643 0: axbaxbaxbx 7644 1: x 7645 7646/(?:a(?&abc)b){2,}(?<abc>x)/ 7647 123axbaxbaxbx456 7648 0: axbaxbaxbx 7649 1: x 7650 7651/(abc)(?i:(?1))/ 7652 defabcabcxyz 7653 0: abcabc 7654 1: abc 7655\= Expect no match 7656 DEFabcABCXYZ 7657No match 7658 7659/(abc)(?:(?i)(?1))/ 7660 defabcabcxyz 7661 0: abcabc 7662 1: abc 7663\= Expect no match 7664 DEFabcABCXYZ 7665No match 7666 7667/^(a)\g-2/ 7668Failed: error 115 at offset 8: reference to non-existent subpattern 7669 7670/^(a)\g/ 7671Failed: error 157 at offset 6: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 7672 7673/^(a)\g{0}/ 7674Failed: error 115 at offset 9: reference to non-existent subpattern 7675 7676/^(a)\g{3/ 7677Failed: error 157 at offset 6: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 7678 7679/^(a)\g{aa}/ 7680Failed: error 115 at offset 7: reference to non-existent subpattern 7681 7682/^a.b/newline=lf 7683 a\rb 7684 0: a\x0db 7685\= Expect no match 7686 a\nb 7687No match 7688 7689/.+foo/ 7690 afoo 7691 0: afoo 7692\= Expect no match 7693 \r\nfoo 7694No match 7695 \nfoo 7696No match 7697 7698/.+foo/newline=crlf 7699 afoo 7700 0: afoo 7701 \nfoo 7702 0: \x0afoo 7703\= Expect no match 7704 \r\nfoo 7705No match 7706 7707/.+foo/newline=any 7708 afoo 7709 0: afoo 7710\= Expect no match 7711 \nfoo 7712No match 7713 \r\nfoo 7714No match 7715 7716/.+foo/s 7717 afoo 7718 0: afoo 7719 \r\nfoo 7720 0: \x0d\x0afoo 7721 \nfoo 7722 0: \x0afoo 7723 7724/^$/gm,newline=any 7725 abc\r\rxyz 7726 0: 7727 abc\n\rxyz 7728 0: 7729\= Expect no match 7730 abc\r\nxyz 7731No match 7732 7733/(?m)^$/g,newline=any,aftertext 7734 abc\r\n\r\n 7735 0: 7736 0+ \x0d\x0a 7737 7738/(?m)^$|^\r\n/g,newline=any,aftertext 7739 abc\r\n\r\n 7740 0: 7741 0+ \x0d\x0a 7742 0: \x0d\x0a 7743 0+ 7744 7745/(?m)$/g,newline=any,aftertext 7746 abc\r\n\r\n 7747 0: 7748 0+ \x0d\x0a\x0d\x0a 7749 0: 7750 0+ \x0d\x0a 7751 0: 7752 0+ 7753 7754/abc.$/gmx,newline=anycrlf 7755 abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc9 7756 0: abc1 7757 0: abc4 7758 0: abc5 7759 0: abc9 7760 7761/^X/m 7762 XABC 7763 0: X 7764\= Expect no match 7765 XABC\=notbol 7766No match 7767 7768/(ab|c)(?-1)/B 7769------------------------------------------------------------------ 7770 Bra 7771 CBra 1 7772 ab 7773 Alt 7774 c 7775 Ket 7776 Recurse 7777 Ket 7778 End 7779------------------------------------------------------------------ 7780 abc 7781 0: abc 7782 1: ab 7783 7784/xy(?+1)(abc)/B 7785------------------------------------------------------------------ 7786 Bra 7787 xy 7788 Recurse 7789 CBra 1 7790 abc 7791 Ket 7792 Ket 7793 End 7794------------------------------------------------------------------ 7795 xyabcabc 7796 0: xyabcabc 7797 1: abc 7798\= Expect no match 7799 xyabc 7800No match 7801 7802/x(?-0)y/ 7803Failed: error 126 at offset 5: a relative value of zero is not allowed 7804 7805/x(?-1)y/ 7806Failed: error 115 at offset 5: reference to non-existent subpattern 7807 7808/x(?+0)y/ 7809Failed: error 126 at offset 5: a relative value of zero is not allowed 7810 7811/x(?+1)y/ 7812Failed: error 115 at offset 5: reference to non-existent subpattern 7813 7814/^(abc)?(?(-1)X|Y)/B 7815------------------------------------------------------------------ 7816 Bra 7817 ^ 7818 Brazero 7819 CBra 1 7820 abc 7821 Ket 7822 Cond 7823 1 Cond ref 7824 X 7825 Alt 7826 Y 7827 Ket 7828 Ket 7829 End 7830------------------------------------------------------------------ 7831 abcX 7832 0: abcX 7833 1: abc 7834 Y 7835 0: Y 7836\= Expect no match 7837 abcY 7838No match 7839 7840/^((?(+1)X|Y)(abc))+/B 7841------------------------------------------------------------------ 7842 Bra 7843 ^ 7844 CBra 1 7845 Cond 7846 2 Cond ref 7847 X 7848 Alt 7849 Y 7850 Ket 7851 CBra 2 7852 abc 7853 Ket 7854 KetRmax 7855 Ket 7856 End 7857------------------------------------------------------------------ 7858 YabcXabc 7859 0: YabcXabc 7860 1: Xabc 7861 2: abc 7862 YabcXabcXabc 7863 0: YabcXabcXabc 7864 1: Xabc 7865 2: abc 7866\= Expect no match 7867 XabcXabc 7868No match 7869 7870/(?(-1)a)/B 7871Failed: error 115 at offset 5: reference to non-existent subpattern 7872 7873/((?(-1)a))/B 7874------------------------------------------------------------------ 7875 Bra 7876 CBra 1 7877 Cond 7878 1 Cond ref 7879 a 7880 Ket 7881 Ket 7882 Ket 7883 End 7884------------------------------------------------------------------ 7885 7886/((?(-2)a))/B 7887Failed: error 115 at offset 6: reference to non-existent subpattern 7888 7889/^(?(+1)X|Y)(.)/B 7890------------------------------------------------------------------ 7891 Bra 7892 ^ 7893 Cond 7894 1 Cond ref 7895 X 7896 Alt 7897 Y 7898 Ket 7899 CBra 1 7900 Any 7901 Ket 7902 Ket 7903 End 7904------------------------------------------------------------------ 7905 Y! 7906 0: Y! 7907 1: ! 7908 7909/(?<A>tom|bon)-\k{A}/ 7910 tom-tom 7911 0: tom-tom 7912 1: tom 7913 bon-bon 7914 0: bon-bon 7915 1: bon 7916\= Expect no match 7917 tom-bon 7918No match 7919 7920/\g{A/ 7921Failed: error 142 at offset 4: syntax error in subpattern name (missing terminator?) 7922 7923/(?|(abc)|(xyz))/B 7924------------------------------------------------------------------ 7925 Bra 7926 Bra 7927 CBra 1 7928 abc 7929 Ket 7930 Alt 7931 CBra 1 7932 xyz 7933 Ket 7934 Ket 7935 Ket 7936 End 7937------------------------------------------------------------------ 7938 >abc< 7939 0: abc 7940 1: abc 7941 >xyz< 7942 0: xyz 7943 1: xyz 7944 7945/(x)(?|(abc)|(xyz))(x)/B 7946------------------------------------------------------------------ 7947 Bra 7948 CBra 1 7949 x 7950 Ket 7951 Bra 7952 CBra 2 7953 abc 7954 Ket 7955 Alt 7956 CBra 2 7957 xyz 7958 Ket 7959 Ket 7960 CBra 3 7961 x 7962 Ket 7963 Ket 7964 End 7965------------------------------------------------------------------ 7966 xabcx 7967 0: xabcx 7968 1: x 7969 2: abc 7970 3: x 7971 xxyzx 7972 0: xxyzx 7973 1: x 7974 2: xyz 7975 3: x 7976 7977/(x)(?|(abc)(pqr)|(xyz))(x)/B 7978------------------------------------------------------------------ 7979 Bra 7980 CBra 1 7981 x 7982 Ket 7983 Bra 7984 CBra 2 7985 abc 7986 Ket 7987 CBra 3 7988 pqr 7989 Ket 7990 Alt 7991 CBra 2 7992 xyz 7993 Ket 7994 Ket 7995 CBra 4 7996 x 7997 Ket 7998 Ket 7999 End 8000------------------------------------------------------------------ 8001 xabcpqrx 8002 0: xabcpqrx 8003 1: x 8004 2: abc 8005 3: pqr 8006 4: x 8007 xxyzx 8008 0: xxyzx 8009 1: x 8010 2: xyz 8011 3: <unset> 8012 4: x 8013 8014/\H++X/B 8015------------------------------------------------------------------ 8016 Bra 8017 \H++ 8018 X 8019 Ket 8020 End 8021------------------------------------------------------------------ 8022\= Expect no match 8023 XXXX 8024No match 8025 8026/\H+\hY/B 8027------------------------------------------------------------------ 8028 Bra 8029 \H++ 8030 \h 8031 Y 8032 Ket 8033 End 8034------------------------------------------------------------------ 8035 XXXX Y 8036 0: XXXX Y 8037 8038/\H+ Y/B 8039------------------------------------------------------------------ 8040 Bra 8041 \H++ 8042 Y 8043 Ket 8044 End 8045------------------------------------------------------------------ 8046 8047/\h+A/B 8048------------------------------------------------------------------ 8049 Bra 8050 \h++ 8051 A 8052 Ket 8053 End 8054------------------------------------------------------------------ 8055 8056/\v*B/B 8057------------------------------------------------------------------ 8058 Bra 8059 \v*+ 8060 B 8061 Ket 8062 End 8063------------------------------------------------------------------ 8064 8065/\V+\x0a/B 8066------------------------------------------------------------------ 8067 Bra 8068 \V++ 8069 \x0a 8070 Ket 8071 End 8072------------------------------------------------------------------ 8073 8074/A+\h/B 8075------------------------------------------------------------------ 8076 Bra 8077 A++ 8078 \h 8079 Ket 8080 End 8081------------------------------------------------------------------ 8082 8083/ *\H/B 8084------------------------------------------------------------------ 8085 Bra 8086 *+ 8087 \H 8088 Ket 8089 End 8090------------------------------------------------------------------ 8091 8092/A*\v/B 8093------------------------------------------------------------------ 8094 Bra 8095 A*+ 8096 \v 8097 Ket 8098 End 8099------------------------------------------------------------------ 8100 8101/\x0b*\V/B 8102------------------------------------------------------------------ 8103 Bra 8104 \x0b*+ 8105 \V 8106 Ket 8107 End 8108------------------------------------------------------------------ 8109 8110/\d+\h/B 8111------------------------------------------------------------------ 8112 Bra 8113 \d++ 8114 \h 8115 Ket 8116 End 8117------------------------------------------------------------------ 8118 8119/\d*\v/B 8120------------------------------------------------------------------ 8121 Bra 8122 \d*+ 8123 \v 8124 Ket 8125 End 8126------------------------------------------------------------------ 8127 8128/S+\h\S+\v/B 8129------------------------------------------------------------------ 8130 Bra 8131 S++ 8132 \h 8133 \S++ 8134 \v 8135 Ket 8136 End 8137------------------------------------------------------------------ 8138 8139/\w{3,}\h\w+\v/B 8140------------------------------------------------------------------ 8141 Bra 8142 \w{3} 8143 \w*+ 8144 \h 8145 \w++ 8146 \v 8147 Ket 8148 End 8149------------------------------------------------------------------ 8150 8151/\h+\d\h+\w\h+\S\h+\H/B 8152------------------------------------------------------------------ 8153 Bra 8154 \h++ 8155 \d 8156 \h++ 8157 \w 8158 \h++ 8159 \S 8160 \h++ 8161 \H 8162 Ket 8163 End 8164------------------------------------------------------------------ 8165 8166/\v+\d\v+\w\v+\S\v+\V/B 8167------------------------------------------------------------------ 8168 Bra 8169 \v++ 8170 \d 8171 \v++ 8172 \w 8173 \v++ 8174 \S 8175 \v++ 8176 \V 8177 Ket 8178 End 8179------------------------------------------------------------------ 8180 8181/\H+\h\H+\d/B 8182------------------------------------------------------------------ 8183 Bra 8184 \H++ 8185 \h 8186 \H+ 8187 \d 8188 Ket 8189 End 8190------------------------------------------------------------------ 8191 8192/\V+\v\V+\w/B 8193------------------------------------------------------------------ 8194 Bra 8195 \V++ 8196 \v 8197 \V+ 8198 \w 8199 Ket 8200 End 8201------------------------------------------------------------------ 8202 8203/\( (?: [^()]* | (?R) )* \)/x 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8206 8207/[\E]AAA/ 8208Failed: error 106 at offset 7: missing terminating ] for character class 8209 8210/[\Q\E]AAA/ 8211Failed: error 106 at offset 9: missing terminating ] for character class 8212 8213/[^\E]AAA/ 8214Failed: error 106 at offset 8: missing terminating ] for character class 8215 8216/[^\Q\E]AAA/ 8217Failed: error 106 at offset 10: missing terminating ] for character class 8218 8219/[\E^]AAA/ 8220Failed: error 106 at offset 8: missing terminating ] for character class 8221 8222/[\Q\E^]AAA/ 8223Failed: error 106 at offset 10: missing terminating ] for character class 8224 8225/A(*PRUNE)B(*SKIP)C(*THEN)D(*COMMIT)E(*F)F(*FAIL)G(?!)H(*ACCEPT)I/B 8226------------------------------------------------------------------ 8227 Bra 8228 A 8229 *PRUNE 8230 B 8231 *SKIP 8232 C 8233 *THEN 8234 D 8235 *COMMIT 8236 E 8237 *FAIL 8238 F 8239 *FAIL 8240 G 8241 *FAIL 8242 H 8243 *ACCEPT 8244 I 8245 Ket 8246 End 8247------------------------------------------------------------------ 8248 8249/^a+(*FAIL)/auto_callout 8250\= Expect no match 8251 aaaaaa 8252--->aaaaaa 8253 +0 ^ ^ 8254 +1 ^ a+ 8255 +3 ^ ^ (*FAIL) 8256 +3 ^ ^ (*FAIL) 8257 +3 ^ ^ (*FAIL) 8258 +3 ^ ^ (*FAIL) 8259 +3 ^ ^ (*FAIL) 8260 +3 ^^ (*FAIL) 8261No match 8262 8263/a+b?c+(*FAIL)/auto_callout 8264\= Expect no match 8265 aaabccc 8266--->aaabccc 8267 +0 ^ a+ 8268 +2 ^ ^ b? 8269 +4 ^ ^ c+ 8270 +6 ^ ^ (*FAIL) 8271 +6 ^ ^ (*FAIL) 8272 +6 ^ ^ (*FAIL) 8273 +0 ^ a+ 8274 +2 ^ ^ b? 8275 +4 ^ ^ c+ 8276 +6 ^ ^ (*FAIL) 8277 +6 ^ ^ (*FAIL) 8278 +6 ^ ^ (*FAIL) 8279 +0 ^ a+ 8280 +2 ^^ b? 8281 +4 ^ ^ c+ 8282 +6 ^ ^ (*FAIL) 8283 +6 ^ ^ (*FAIL) 8284 +6 ^ ^ (*FAIL) 8285No match 8286 8287/a+b?(*PRUNE)c+(*FAIL)/auto_callout 8288\= Expect no match 8289 aaabccc 8290--->aaabccc 8291 +0 ^ a+ 8292 +2 ^ ^ b? 8293 +4 ^ ^ (*PRUNE) 8294+12 ^ ^ c+ 8295+14 ^ ^ (*FAIL) 8296+14 ^ ^ (*FAIL) 8297+14 ^ ^ (*FAIL) 8298 +0 ^ a+ 8299 +2 ^ ^ b? 8300 +4 ^ ^ (*PRUNE) 8301+12 ^ ^ c+ 8302+14 ^ ^ (*FAIL) 8303+14 ^ ^ (*FAIL) 8304+14 ^ ^ (*FAIL) 8305 +0 ^ a+ 8306 +2 ^^ b? 8307 +4 ^ ^ (*PRUNE) 8308+12 ^ ^ c+ 8309+14 ^ ^ (*FAIL) 8310+14 ^ ^ (*FAIL) 8311+14 ^ ^ (*FAIL) 8312No match 8313 8314/a+b?(*COMMIT)c+(*FAIL)/auto_callout 8315\= Expect no match 8316 aaabccc 8317--->aaabccc 8318 +0 ^ a+ 8319 +2 ^ ^ b? 8320 +4 ^ ^ (*COMMIT) 8321+13 ^ ^ c+ 8322+15 ^ ^ (*FAIL) 8323+15 ^ ^ (*FAIL) 8324+15 ^ ^ (*FAIL) 8325No match 8326 8327/a+b?(*SKIP)c+(*FAIL)/auto_callout 8328\= Expect no match 8329 aaabcccaaabccc 8330--->aaabcccaaabccc 8331 +0 ^ a+ 8332 +2 ^ ^ b? 8333 +4 ^ ^ (*SKIP) 8334+11 ^ ^ c+ 8335+13 ^ ^ (*FAIL) 8336+13 ^ ^ (*FAIL) 8337+13 ^ ^ (*FAIL) 8338 +0 ^ a+ 8339 +2 ^ ^ b? 8340 +4 ^ ^ (*SKIP) 8341+11 ^ ^ c+ 8342+13 ^ ^ (*FAIL) 8343+13 ^ ^ (*FAIL) 8344+13 ^ ^ (*FAIL) 8345No match 8346 8347/a+b?(*THEN)c+(*FAIL)/auto_callout 8348\= Expect no match 8349 aaabccc 8350--->aaabccc 8351 +0 ^ a+ 8352 +2 ^ ^ b? 8353 +4 ^ ^ (*THEN) 8354+11 ^ ^ c+ 8355+13 ^ ^ (*FAIL) 8356+13 ^ ^ (*FAIL) 8357+13 ^ ^ (*FAIL) 8358 +0 ^ a+ 8359 +2 ^ ^ b? 8360 +4 ^ ^ (*THEN) 8361+11 ^ ^ c+ 8362+13 ^ ^ (*FAIL) 8363+13 ^ ^ (*FAIL) 8364+13 ^ ^ (*FAIL) 8365 +0 ^ a+ 8366 +2 ^^ b? 8367 +4 ^ ^ (*THEN) 8368+11 ^ ^ c+ 8369+13 ^ ^ (*FAIL) 8370+13 ^ ^ (*FAIL) 8371+13 ^ ^ (*FAIL) 8372No match 8373 8374/a(*MARK)b/ 8375Failed: error 166 at offset 7: (*MARK) must have an argument 8376 8377/(?i:A{1,}\6666666666)/ 8378Failed: error 161 at offset 19: subpattern number is too big 8379 8380/\g6666666666/ 8381Failed: error 161 at offset 7: subpattern number is too big 8382 8383/[\g6666666666]/B 8384------------------------------------------------------------------ 8385 Bra 8386 [6g] 8387 Ket 8388 End 8389------------------------------------------------------------------ 8390 8391/(?1)\c[/ 8392Failed: error 115 at offset 3: reference to non-existent subpattern 8393 8394/.+A/newline=crlf 8395\= Expect no match 8396 \r\nA 8397No match 8398 8399/\nA/newline=crlf 8400 \r\nA 8401 0: \x0aA 8402 8403/[\r\n]A/newline=crlf 8404 \r\nA 8405 0: \x0aA 8406 8407/(\r|\n)A/newline=crlf 8408 \r\nA 8409 0: \x0aA 8410 1: \x0a 8411 8412/a(*CR)b/ 8413Failed: error 160 at offset 5: (*VERB) not recognized or malformed 8414 8415/(*CR)a.b/ 8416 a\nb 8417 0: a\x0ab 8418\= Expect no match 8419 a\rb 8420No match 8421 8422/(*CR)a.b/newline=lf 8423 a\nb 8424 0: a\x0ab 8425\= Expect no match 8426 a\rb 8427No match 8428 8429/(*LF)a.b/newline=CRLF 8430 a\rb 8431 0: a\x0db 8432\= Expect no match 8433 a\nb 8434No match 8435 8436/(*CRLF)a.b/ 8437 a\rb 8438 0: a\x0db 8439 a\nb 8440 0: a\x0ab 8441\= Expect no match 8442 a\r\nb 8443No match 8444 8445/(*ANYCRLF)a.b/newline=CR 8446\= Expect no match 8447 a\rb 8448No match 8449 a\nb 8450No match 8451 a\r\nb 8452No match 8453 8454/(*ANY)a.b/newline=cr 8455\= Expect no match 8456 a\rb 8457No match 8458 a\nb 8459No match 8460 a\r\nb 8461No match 8462 a\x85b 8463No match 8464 8465/(*ANY).*/g 8466 abc\r\ndef 8467 0: abc 8468 0: 8469 0: def 8470 0: 8471 8472/(*ANYCRLF).*/g 8473 abc\r\ndef 8474 0: abc 8475 0: 8476 0: def 8477 0: 8478 8479/(*CRLF).*/g 8480 abc\r\ndef 8481 0: abc 8482 0: 8483 0: def 8484 0: 8485 8486/(*NUL)^.*/ 8487 a\nb\x00ccc 8488 0: a\x0ab 8489 8490/(*NUL)^.*/s 8491 a\nb\x00ccc 8492 0: a\x0ab\x00ccc 8493 8494/^x/m,newline=NUL 8495 ab\x00xy 8496 0: x 8497 8498/'#comment' 0d 0a 00 '^x\' 0a 'y'/x,newline=nul,hex 8499 x\nyz 8500 0: x\x0ay 8501 8502/(*NUL)^X\NY/ 8503 X\nY 8504 0: X\x0aY 8505 X\rY 8506 0: X\x0dY 8507\= Expect no match 8508 X\x00Y 8509No match 8510 8511/a\Rb/I,bsr=anycrlf 8512Capture group count = 0 8513\R matches CR, LF, or CRLF 8514First code unit = 'a' 8515Last code unit = 'b' 8516Subject length lower bound = 3 8517 a\rb 8518 0: a\x0db 8519 a\nb 8520 0: a\x0ab 8521 a\r\nb 8522 0: a\x0d\x0ab 8523\= Expect no match 8524 a\x85b 8525No match 8526 a\x0bb 8527No match 8528 8529/a\Rb/I,bsr=unicode 8530Capture group count = 0 8531\R matches any Unicode newline 8532First code unit = 'a' 8533Last code unit = 'b' 8534Subject length lower bound = 3 8535 a\rb 8536 0: a\x0db 8537 a\nb 8538 0: a\x0ab 8539 a\r\nb 8540 0: a\x0d\x0ab 8541 a\x85b 8542 0: a\x85b 8543 a\x0bb 8544 0: a\x0bb 8545 8546/a\R?b/I,bsr=anycrlf 8547Capture group count = 0 8548\R matches CR, LF, or CRLF 8549First code unit = 'a' 8550Last code unit = 'b' 8551Subject length lower bound = 2 8552 a\rb 8553 0: a\x0db 8554 a\nb 8555 0: a\x0ab 8556 a\r\nb 8557 0: a\x0d\x0ab 8558\= Expect no match 8559 a\x85b 8560No match 8561 a\x0bb 8562No match 8563 8564/a\R?b/I,bsr=unicode 8565Capture group count = 0 8566\R matches any Unicode newline 8567First code unit = 'a' 8568Last code unit = 'b' 8569Subject length lower bound = 2 8570 a\rb 8571 0: a\x0db 8572 a\nb 8573 0: a\x0ab 8574 a\r\nb 8575 0: a\x0d\x0ab 8576 a\x85b 8577 0: a\x85b 8578 a\x0bb 8579 0: a\x0bb 8580 8581/a\R{2,4}b/I,bsr=anycrlf 8582Capture group count = 0 8583\R matches CR, LF, or CRLF 8584First code unit = 'a' 8585Last code unit = 'b' 8586Subject length lower bound = 4 8587 a\r\n\nb 8588 0: a\x0d\x0a\x0ab 8589 a\n\r\rb 8590 0: a\x0a\x0d\x0db 8591 a\r\n\r\n\r\n\r\nb 8592 0: a\x0d\x0a\x0d\x0a\x0d\x0a\x0d\x0ab 8593\= Expect no match 8594 a\x85\x85b 8595No match 8596 a\x0b\x0bb 8597No match 8598 8599/a\R{2,4}b/I,bsr=unicode 8600Capture group count = 0 8601\R matches any Unicode newline 8602First code unit = 'a' 8603Last code unit = 'b' 8604Subject length lower bound = 4 8605 a\r\rb 8606 0: a\x0d\x0db 8607 a\n\n\nb 8608 0: a\x0a\x0a\x0ab 8609 a\r\n\n\r\rb 8610 0: a\x0d\x0a\x0a\x0d\x0db 8611 a\x85\x85b 8612 0: a\x85\x85b 8613 a\x0b\x0bb 8614 0: a\x0b\x0bb 8615\= Expect no match 8616 a\r\r\r\r\rb 8617No match 8618 8619/(*BSR_ANYCRLF)a\Rb/I 8620Capture group count = 0 8621\R matches CR, LF, or CRLF 8622First code unit = 'a' 8623Last code unit = 'b' 8624Subject length lower bound = 3 8625 a\nb 8626 0: a\x0ab 8627 a\rb 8628 0: a\x0db 8629 8630/(*BSR_UNICODE)a\Rb/I 8631Capture group count = 0 8632\R matches any Unicode newline 8633First code unit = 'a' 8634Last code unit = 'b' 8635Subject length lower bound = 3 8636 a\x85b 8637 0: a\x85b 8638 8639/(*BSR_ANYCRLF)(*CRLF)a\Rb/I 8640Capture group count = 0 8641\R matches CR, LF, or CRLF 8642Forced newline is CRLF 8643First code unit = 'a' 8644Last code unit = 'b' 8645Subject length lower bound = 3 8646 a\nb 8647 0: a\x0ab 8648 a\rb 8649 0: a\x0db 8650 8651/(*CRLF)(*BSR_UNICODE)a\Rb/I 8652Capture group count = 0 8653\R matches any Unicode newline 8654Forced newline is CRLF 8655First code unit = 'a' 8656Last code unit = 'b' 8657Subject length lower bound = 3 8658 a\x85b 8659 0: a\x85b 8660 8661/(*CRLF)(*BSR_ANYCRLF)(*CR)ab/I 8662Capture group count = 0 8663\R matches CR, LF, or CRLF 8664Forced newline is CR 8665First code unit = 'a' 8666Last code unit = 'b' 8667Subject length lower bound = 2 8668 8669/(?<a>)(?&)/ 8670Failed: error 162 at offset 9: subpattern name expected 8671 8672/(?<abc>)(?&a)/ 8673Failed: error 115 at offset 11: reference to non-existent subpattern 8674 8675/(?<a>)(?&aaaaaaaaaaaaaaaaaaaaaaa)/ 8676Failed: error 115 at offset 9: reference to non-existent subpattern 8677 8678/(?+-a)/ 8679Failed: error 129 at offset 2: digit expected after (?+ or (?- 8680 8681/(?-+a)/ 8682Failed: error 111 at offset 3: unrecognized character after (? or (?- 8683 8684/(?(-1))/ 8685Failed: error 115 at offset 5: reference to non-existent subpattern 8686 8687/(?(+10))/ 8688Failed: error 115 at offset 4: reference to non-existent subpattern 8689 8690/(?(10))/ 8691Failed: error 115 at offset 3: reference to non-existent subpattern 8692 8693/(?(+2))()()/ 8694 8695/(?(2))()()/ 8696 8697/\k''/ 8698Failed: error 162 at offset 3: subpattern name expected 8699 8700/\k<>/ 8701Failed: error 162 at offset 3: subpattern name expected 8702 8703/\k{}/ 8704Failed: error 162 at offset 3: subpattern name expected 8705 8706/\k/ 8707Failed: error 169 at offset 2: \k is not followed by a braced, angle-bracketed, or quoted name 8708 8709/\kabc/ 8710Failed: error 169 at offset 2: \k is not followed by a braced, angle-bracketed, or quoted name 8711 8712/(?P=)/ 8713Failed: error 162 at offset 4: subpattern name expected 8714 8715/(?P>)/ 8716Failed: error 162 at offset 4: subpattern name expected 8717 8718/[[:foo:]]/ 8719Failed: error 130 at offset 3: unknown POSIX class name 8720 8721/[[:1234:]]/ 8722Failed: error 130 at offset 3: unknown POSIX class name 8723 8724/[[:f\oo:]]/ 8725Failed: error 130 at offset 3: unknown POSIX class name 8726 8727/[[: :]]/ 8728Failed: error 130 at offset 3: unknown POSIX class name 8729 8730/[[:...:]]/ 8731Failed: error 130 at offset 3: unknown POSIX class name 8732 8733/[[:l\ower:]]/ 8734Failed: error 130 at offset 3: unknown POSIX class name 8735 8736/[[:abc\:]]/ 8737Failed: error 130 at offset 3: unknown POSIX class name 8738 8739/[abc[:x\]pqr:]]/ 8740Failed: error 130 at offset 6: unknown POSIX class name 8741 8742/[[:a\dz:]]/ 8743Failed: error 130 at offset 3: unknown POSIX class name 8744 8745/(^(a|b\g<-1'c))/ 8746Failed: error 157 at offset 8: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 8747 8748/^(?+1)(?<a>x|y){0}z/ 8749 xzxx 8750 0: xz 8751 yzyy 8752 0: yz 8753\= Expect no match 8754 xxz 8755No match 8756 8757/(\3)(\1)(a)/ 8758\= Expect no match 8759 cat 8760No match 8761 8762/(\3)(\1)(a)/allow_empty_class,match_unset_backref,dupnames 8763 cat 8764 0: a 8765 1: 8766 2: 8767 3: a 8768 8769/TA]/ 8770 The ACTA] comes 8771 0: TA] 8772 8773/TA]/allow_empty_class,match_unset_backref,dupnames 8774 The ACTA] comes 8775 0: TA] 8776 8777/(?2)[]a()b](abc)/ 8778Failed: error 115 at offset 3: reference to non-existent subpattern 8779 abcbabc 8780 8781/(?2)[^]a()b](abc)/ 8782Failed: error 115 at offset 3: reference to non-existent subpattern 8783 abcbabc 8784 8785/(?1)[]a()b](abc)/ 8786 abcbabc 8787 0: abcbabc 8788 1: abc 8789\= Expect no match 8790 abcXabc 8791No match 8792 8793/(?1)[^]a()b](abc)/ 8794 abcXabc 8795 0: abcXabc 8796 1: abc 8797\= Expect no match 8798 abcbabc 8799No match 8800 8801/(?2)[]a()b](abc)(xyz)/ 8802 xyzbabcxyz 8803 0: xyzbabcxyz 8804 1: abc 8805 2: xyz 8806 8807/(?&N)[]a(?<N>)](?<M>abc)/ 8808Failed: error 115 at offset 3: reference to non-existent subpattern 8809 abc<abc 8810 8811/(?&N)[]a(?<N>)](abc)/ 8812Failed: error 115 at offset 3: reference to non-existent subpattern 8813 abc<abc 8814 8815/a[]b/ 8816Failed: error 106 at offset 4: missing terminating ] for character class 8817 8818/a[^]b/ 8819Failed: error 106 at offset 5: missing terminating ] for character class 8820 8821/a[]b/allow_empty_class,match_unset_backref,dupnames 8822\= Expect no match 8823 ab 8824No match 8825 8826/a[]+b/allow_empty_class,match_unset_backref,dupnames 8827\= Expect no match 8828 ab 8829No match 8830 8831/a[]*+b/allow_empty_class,match_unset_backref,dupnames 8832\= Expect no match 8833 ab 8834No match 8835 8836/a[^]b/allow_empty_class,match_unset_backref,dupnames 8837 aXb 8838 0: aXb 8839 a\nb 8840 0: a\x0ab 8841\= Expect no match 8842 ab 8843No match 8844 8845/a[^]+b/allow_empty_class,match_unset_backref,dupnames 8846 aXb 8847 0: aXb 8848 a\nX\nXb 8849 0: a\x0aX\x0aXb 8850\= Expect no match 8851 ab 8852No match 8853 8854/a(?!)b/B 8855------------------------------------------------------------------ 8856 Bra 8857 a 8858 *FAIL 8859 b 8860 Ket 8861 End 8862------------------------------------------------------------------ 8863 8864/(?!)?a/B 8865------------------------------------------------------------------ 8866 Bra 8867 Brazero 8868 Assert not 8869 Ket 8870 a 8871 Ket 8872 End 8873------------------------------------------------------------------ 8874 ab 8875 0: a 8876 8877/a(*FAIL)+b/ 8878Failed: error 109 at offset 8: quantifier does not follow a repeatable item 8879 8880/(abc|pqr|123){0}[xyz]/I 8881Capture group count = 1 8882Starting code units: x y z 8883Subject length lower bound = 1 8884 8885/(?(?=.*b)b|^)/I,auto_callout 8886Capture group count = 0 8887May match empty string 8888Options: auto_callout 8889Subject length lower bound = 0 8890 adc 8891--->adc 8892 +0 ^ (? 8893 +2 ^ (?= 8894 +5 ^ .* 8895 +7 ^ ^ b 8896 +7 ^ ^ b 8897 +7 ^^ b 8898 +7 ^ b 8899+11 ^ ^ 8900+12 ^ ) 8901+13 ^ End of pattern 8902 0: 8903 abc 8904--->abc 8905 +0 ^ (? 8906 +2 ^ (?= 8907 +5 ^ .* 8908 +7 ^ ^ b 8909 +7 ^ ^ b 8910 +7 ^^ b 8911 +8 ^ ^ ) 8912 +9 ^ b 8913 +0 ^ (? 8914 +2 ^ (?= 8915 +5 ^ .* 8916 +7 ^ ^ b 8917 +7 ^^ b 8918 +7 ^ b 8919 +8 ^^ ) 8920 +9 ^ b 8921+10 ^^ | 8922+13 ^^ End of pattern 8923 0: b 8924 8925/(?(?=b).*b|^d)/I 8926Capture group count = 0 8927Subject length lower bound = 1 8928 8929/(?(?=.*b).*b|^d)/I 8930Capture group count = 0 8931Subject length lower bound = 1 8932 8933/xyz/auto_callout 8934 xyz 8935--->xyz 8936 +0 ^ x 8937 +1 ^^ y 8938 +2 ^ ^ z 8939 +3 ^ ^ End of pattern 8940 0: xyz 8941 abcxyz 8942--->abcxyz 8943 +0 ^ x 8944 +1 ^^ y 8945 +2 ^ ^ z 8946 +3 ^ ^ End of pattern 8947 0: xyz 8948\= Expect no match 8949 abc 8950No match 8951 abcxypqr 8952No match 8953 8954/xyz/auto_callout,no_start_optimize 8955 abcxyz 8956--->abcxyz 8957 +0 ^ x 8958 +0 ^ x 8959 +0 ^ x 8960 +0 ^ x 8961 +1 ^^ y 8962 +2 ^ ^ z 8963 +3 ^ ^ End of pattern 8964 0: xyz 8965\= Expect no match 8966 abc 8967--->abc 8968 +0 ^ x 8969 +0 ^ x 8970 +0 ^ x 8971 +0 ^ x 8972No match 8973 abcxypqr 8974--->abcxypqr 8975 +0 ^ x 8976 +0 ^ x 8977 +0 ^ x 8978 +0 ^ x 8979 +1 ^^ y 8980 +2 ^ ^ z 8981 +0 ^ x 8982 +0 ^ x 8983 +0 ^ x 8984 +0 ^ x 8985 +0 ^ x 8986No match 8987 8988/(*NO_START_OPT)xyz/auto_callout 8989 abcxyz 8990--->abcxyz 8991+15 ^ x 8992+15 ^ x 8993+15 ^ x 8994+15 ^ x 8995+16 ^^ y 8996+17 ^ ^ z 8997+18 ^ ^ End of pattern 8998 0: xyz 8999 9000/(*NO_AUTO_POSSESS)a+b/B 9001------------------------------------------------------------------ 9002 Bra 9003 a+ 9004 b 9005 Ket 9006 End 9007------------------------------------------------------------------ 9008 9009/xyz/auto_callout,no_start_optimize 9010 abcxyz 9011--->abcxyz 9012 +0 ^ x 9013 +0 ^ x 9014 +0 ^ x 9015 +0 ^ x 9016 +1 ^^ y 9017 +2 ^ ^ z 9018 +3 ^ ^ End of pattern 9019 0: xyz 9020 9021/^"((?(?=[a])[^"])|b)*"$/auto_callout 9022 "ab" 9023--->"ab" 9024 +0 ^ ^ 9025 +1 ^ " 9026 +2 ^^ ( 9027 +3 ^^ (? 9028 +5 ^^ (?= 9029 +8 ^^ [a] 9030+11 ^ ^ ) 9031+12 ^^ [^"] 9032+16 ^ ^ ) 9033+17 ^ ^ | 9034 +3 ^ ^ (? 9035 +5 ^ ^ (?= 9036 +8 ^ ^ [a] 9037+17 ^ ^ | 9038+21 ^ ^ " 9039+18 ^ ^ b 9040+19 ^ ^ )* 9041 +3 ^ ^ (? 9042 +5 ^ ^ (?= 9043 +8 ^ ^ [a] 9044+17 ^ ^ | 9045+21 ^ ^ " 9046+22 ^ ^ $ 9047+23 ^ ^ End of pattern 9048 0: "ab" 9049 1: 9050 9051/^"((?(?=[a])[^"])|b)*"$/ 9052 "ab" 9053 0: "ab" 9054 1: 9055 9056/^X(?5)(a)(?|(b)|(q))(c)(d)Y/ 9057Failed: error 115 at offset 5: reference to non-existent subpattern 9058 XYabcdY 9059 9060/^X(?&N)(a)(?|(b)|(q))(c)(d)(?<N>Y)/ 9061 XYabcdY 9062 0: XYabcdY 9063 1: a 9064 2: b 9065 3: c 9066 4: d 9067 5: Y 9068 9069/Xa{2,4}b/ 9070 X\=ps 9071Partial match: X 9072 Xa\=ps 9073Partial match: Xa 9074 Xaa\=ps 9075Partial match: Xaa 9076 Xaaa\=ps 9077Partial match: Xaaa 9078 Xaaaa\=ps 9079Partial match: Xaaaa 9080 9081/Xa{2,4}?b/ 9082 X\=ps 9083Partial match: X 9084 Xa\=ps 9085Partial match: Xa 9086 Xaa\=ps 9087Partial match: Xaa 9088 Xaaa\=ps 9089Partial match: Xaaa 9090 Xaaaa\=ps 9091Partial match: Xaaaa 9092 9093/Xa{2,4}+b/ 9094 X\=ps 9095Partial match: X 9096 Xa\=ps 9097Partial match: Xa 9098 Xaa\=ps 9099Partial match: Xaa 9100 Xaaa\=ps 9101Partial match: Xaaa 9102 Xaaaa\=ps 9103Partial match: Xaaaa 9104 9105/X\d{2,4}b/ 9106 X\=ps 9107Partial match: X 9108 X3\=ps 9109Partial match: X3 9110 X33\=ps 9111Partial match: X33 9112 X333\=ps 9113Partial match: X333 9114 X3333\=ps 9115Partial match: X3333 9116 9117/X\d{2,4}?b/ 9118 X\=ps 9119Partial match: X 9120 X3\=ps 9121Partial match: X3 9122 X33\=ps 9123Partial match: X33 9124 X333\=ps 9125Partial match: X333 9126 X3333\=ps 9127Partial match: X3333 9128 9129/X\d{2,4}+b/ 9130 X\=ps 9131Partial match: X 9132 X3\=ps 9133Partial match: X3 9134 X33\=ps 9135Partial match: X33 9136 X333\=ps 9137Partial match: X333 9138 X3333\=ps 9139Partial match: X3333 9140 9141/X\D{2,4}b/ 9142 X\=ps 9143Partial match: X 9144 Xa\=ps 9145Partial match: Xa 9146 Xaa\=ps 9147Partial match: Xaa 9148 Xaaa\=ps 9149Partial match: Xaaa 9150 Xaaaa\=ps 9151Partial match: Xaaaa 9152 9153/X\D{2,4}?b/ 9154 X\=ps 9155Partial match: X 9156 Xa\=ps 9157Partial match: Xa 9158 Xaa\=ps 9159Partial match: Xaa 9160 Xaaa\=ps 9161Partial match: Xaaa 9162 Xaaaa\=ps 9163Partial match: Xaaaa 9164 9165/X\D{2,4}+b/ 9166 X\=ps 9167Partial match: X 9168 Xa\=ps 9169Partial match: Xa 9170 Xaa\=ps 9171Partial match: Xaa 9172 Xaaa\=ps 9173Partial match: Xaaa 9174 Xaaaa\=ps 9175Partial match: Xaaaa 9176 9177/X[abc]{2,4}b/ 9178 X\=ps 9179Partial match: X 9180 Xa\=ps 9181Partial match: Xa 9182 Xaa\=ps 9183Partial match: Xaa 9184 Xaaa\=ps 9185Partial match: Xaaa 9186 Xaaaa\=ps 9187Partial match: Xaaaa 9188 9189/X[abc]{2,4}?b/ 9190 X\=ps 9191Partial match: X 9192 Xa\=ps 9193Partial match: Xa 9194 Xaa\=ps 9195Partial match: Xaa 9196 Xaaa\=ps 9197Partial match: Xaaa 9198 Xaaaa\=ps 9199Partial match: Xaaaa 9200 9201/X[abc]{2,4}+b/ 9202 X\=ps 9203Partial match: X 9204 Xa\=ps 9205Partial match: Xa 9206 Xaa\=ps 9207Partial match: Xaa 9208 Xaaa\=ps 9209Partial match: Xaaa 9210 Xaaaa\=ps 9211Partial match: Xaaaa 9212 9213/X[^a]{2,4}b/ 9214 X\=ps 9215Partial match: X 9216 Xz\=ps 9217Partial match: Xz 9218 Xzz\=ps 9219Partial match: Xzz 9220 Xzzz\=ps 9221Partial match: Xzzz 9222 Xzzzz\=ps 9223Partial match: Xzzzz 9224 9225/X[^a]{2,4}?b/ 9226 X\=ps 9227Partial match: X 9228 Xz\=ps 9229Partial match: Xz 9230 Xzz\=ps 9231Partial match: Xzz 9232 Xzzz\=ps 9233Partial match: Xzzz 9234 Xzzzz\=ps 9235Partial match: Xzzzz 9236 9237/X[^a]{2,4}+b/ 9238 X\=ps 9239Partial match: X 9240 Xz\=ps 9241Partial match: Xz 9242 Xzz\=ps 9243Partial match: Xzz 9244 Xzzz\=ps 9245Partial match: Xzzz 9246 Xzzzz\=ps 9247Partial match: Xzzzz 9248 9249/(Y)X\1{2,4}b/ 9250 YX\=ps 9251Partial match: YX 9252 YXY\=ps 9253Partial match: YXY 9254 YXYY\=ps 9255Partial match: YXYY 9256 YXYYY\=ps 9257Partial match: YXYYY 9258 YXYYYY\=ps 9259Partial match: YXYYYY 9260 9261/(Y)X\1{2,4}?b/ 9262 YX\=ps 9263Partial match: YX 9264 YXY\=ps 9265Partial match: YXY 9266 YXYY\=ps 9267Partial match: YXYY 9268 YXYYY\=ps 9269Partial match: YXYYY 9270 YXYYYY\=ps 9271Partial match: YXYYYY 9272 9273/(Y)X\1{2,4}+b/ 9274 YX\=ps 9275Partial match: YX 9276 YXY\=ps 9277Partial match: YXY 9278 YXYY\=ps 9279Partial match: YXYY 9280 YXYYY\=ps 9281Partial match: YXYYY 9282 YXYYYY\=ps 9283Partial match: YXYYYY 9284 9285/\++\KZ|\d+X|9+Y/startchar 9286 ++++123999\=ps 9287Partial match: 123999 9288 ++++123999Y\=ps 9289 0: 999Y 9290 ++++Z1234\=ps 9291 0: ++++Z 9292 ^^^^ 9293 9294/Z(*F)/ 9295\= Expect no match 9296 Z\=ps 9297No match 9298 ZA\=ps 9299No match 9300 9301/Z(?!)/ 9302\= Expect no match 9303 Z\=ps 9304No match 9305 ZA\=ps 9306No match 9307 9308/dog(sbody)?/ 9309 dogs\=ps 9310 0: dog 9311 dogs\=ph 9312Partial match: dogs 9313 9314/dog(sbody)??/ 9315 dogs\=ps 9316 0: dog 9317 dogs\=ph 9318 0: dog 9319 9320/dog|dogsbody/ 9321 dogs\=ps 9322 0: dog 9323 dogs\=ph 9324 0: dog 9325 9326/dogsbody|dog/ 9327 dogs\=ps 9328 0: dog 9329 dogs\=ph 9330Partial match: dogs 9331 9332/\bthe cat\b/ 9333 the cat\=ps 9334 0: the cat 9335 the cat\=ph 9336Partial match: the cat 9337 9338/abc/ 9339 abc\=ps 9340 0: abc 9341 abc\=ph 9342 0: abc 9343 9344/abc\K123/startchar 9345 xyzabc123pqr 9346 0: abc123 9347 ^^^ 9348 xyzabc12\=ps 9349Partial match: abc12 9350 xyzabc12\=ph 9351Partial match: abc12 9352 9353/(?<=abc)123/ 9354 xyzabc123pqr 9355 0: 123 9356 xyzabc12\=ps 9357Partial match: 12 9358 xyzabc12\=ph 9359Partial match: 12 9360 9361/\babc\b/ 9362 +++abc+++ 9363 0: abc 9364 +++ab\=ps 9365Partial match: ab 9366 +++ab\=ph 9367Partial match: ab 9368 9369/(?&word)(?&element)(?(DEFINE)(?<element><[^m][^>]>[^<])(?<word>\w*+))/B 9370------------------------------------------------------------------ 9371 Bra 9372 Recurse 9373 Recurse 9374 Cond 9375 Cond false 9376 CBra 1 9377 < 9378 [^m] 9379 [^>] 9380 > 9381 [^<] 9382 Ket 9383 CBra 2 9384 \w*+ 9385 Ket 9386 Ket 9387 Ket 9388 End 9389------------------------------------------------------------------ 9390 9391/(?&word)(?&element)(?(DEFINE)(?<element><[^\d][^>]>[^<])(?<word>\w*+))/B 9392------------------------------------------------------------------ 9393 Bra 9394 Recurse 9395 Recurse 9396 Cond 9397 Cond false 9398 CBra 1 9399 < 9400 [\x00-/:-\xff] (neg) 9401 [^>] 9402 > 9403 [^<] 9404 Ket 9405 CBra 2 9406 \w*+ 9407 Ket 9408 Ket 9409 Ket 9410 End 9411------------------------------------------------------------------ 9412 9413/(ab)(x(y)z(cd(*ACCEPT)))pq/B 9414------------------------------------------------------------------ 9415 Bra 9416 CBra 1 9417 ab 9418 Ket 9419 CBra 2 9420 x 9421 CBra 3 9422 y 9423 Ket 9424 z 9425 CBra 4 9426 cd 9427 Close 4 9428 Close 2 9429 *ACCEPT 9430 Ket 9431 Ket 9432 pq 9433 Ket 9434 End 9435------------------------------------------------------------------ 9436 9437/abc\K/aftertext,startchar 9438 abcdef 9439 0: abc 9440 ^^^ 9441 0+ def 9442 abcdef\=notempty_atstart 9443 0: abc 9444 ^^^ 9445 0+ def 9446 xyzabcdef\=notempty_atstart 9447 0: abc 9448 ^^^ 9449 0+ def 9450\= Expect no match 9451 abcdef\=notempty 9452No match 9453 xyzabcdef\=notempty 9454No match 9455 9456/^(?:(?=abc)|abc\K)/aftertext,startchar 9457 abcdef 9458 0: 9459 0+ abcdef 9460 abcdef\=notempty_atstart 9461 0: abc 9462 ^^^ 9463 0+ def 9464\= Expect no match 9465 abcdef\=notempty 9466No match 9467 9468/a?b?/aftertext 9469 xyz 9470 0: 9471 0+ xyz 9472 xyzabc 9473 0: 9474 0+ xyzabc 9475 xyzabc\=notempty 9476 0: ab 9477 0+ c 9478 xyzabc\=notempty_atstart 9479 0: 9480 0+ yzabc 9481 xyz\=notempty_atstart 9482 0: 9483 0+ yz 9484\= Expect no match 9485 xyz\=notempty 9486No match 9487 9488/^a?b?/aftertext 9489 xyz 9490 0: 9491 0+ xyz 9492 xyzabc 9493 0: 9494 0+ xyzabc 9495\= Expect no match 9496 xyzabc\=notempty 9497No match 9498 xyzabc\=notempty_atstart 9499No match 9500 xyz\=notempty_atstart 9501No match 9502 xyz\=notempty 9503No match 9504 9505/^(?<name>a|b\g<name>c)/ 9506 aaaa 9507 0: a 9508 1: a 9509 bacxxx 9510 0: bac 9511 1: bac 9512 bbaccxxx 9513 0: bbacc 9514 1: bbacc 9515 bbbacccxx 9516 0: bbbaccc 9517 1: bbbaccc 9518 9519/^(?<name>a|b\g'name'c)/ 9520 aaaa 9521 0: a 9522 1: a 9523 bacxxx 9524 0: bac 9525 1: bac 9526 bbaccxxx 9527 0: bbacc 9528 1: bbacc 9529 bbbacccxx 9530 0: bbbaccc 9531 1: bbbaccc 9532 9533/^(a|b\g<1>c)/ 9534 aaaa 9535 0: a 9536 1: a 9537 bacxxx 9538 0: bac 9539 1: bac 9540 bbaccxxx 9541 0: bbacc 9542 1: bbacc 9543 bbbacccxx 9544 0: bbbaccc 9545 1: bbbaccc 9546 9547/^(a|b\g'1'c)/ 9548 aaaa 9549 0: a 9550 1: a 9551 bacxxx 9552 0: bac 9553 1: bac 9554 bbaccxxx 9555 0: bbacc 9556 1: bbacc 9557 bbbacccxx 9558 0: bbbaccc 9559 1: bbbaccc 9560 9561/^(a|b\g'-1'c)/ 9562 aaaa 9563 0: a 9564 1: a 9565 bacxxx 9566 0: bac 9567 1: bac 9568 bbaccxxx 9569 0: bbacc 9570 1: bbacc 9571 bbbacccxx 9572 0: bbbaccc 9573 1: bbbaccc 9574 9575/(^(a|b\g<-1>c))/ 9576 aaaa 9577 0: a 9578 1: a 9579 2: a 9580 bacxxx 9581 0: bac 9582 1: bac 9583 2: bac 9584 bbaccxxx 9585 0: bbacc 9586 1: bbacc 9587 2: bbacc 9588 bbbacccxx 9589 0: bbbaccc 9590 1: bbbaccc 9591 2: bbbaccc 9592 9593/(?-i:\g<name>)(?i:(?<name>a))/ 9594 XaaX 9595 0: aa 9596 1: a 9597 XAAX 9598 0: AA 9599 1: A 9600 9601/(?i:\g<name>)(?-i:(?<name>a))/ 9602 XaaX 9603 0: aa 9604 1: a 9605\= Expect no match 9606 XAAX 9607No match 9608 9609/(?-i:\g<+1>)(?i:(a))/ 9610 XaaX 9611 0: aa 9612 1: a 9613 XAAX 9614 0: AA 9615 1: A 9616 9617/(?=(?<regex>(?#simplesyntax)\$(?<name>[a-zA-Z_\x{7f}-\x{ff}][a-zA-Z0-9_\x{7f}-\x{ff}]*)(?:\[(?<index>[a-zA-Z0-9_\x{7f}-\x{ff}]+|\$\g<name>)\]|->\g<name>(\(.*?\))?)?|(?#simple syntax withbraces)\$\{(?:\g<name>(?<indices>\[(?:\g<index>|'(?:\\.|[^'\\])*'|"(?:\g<regex>|\\.|[^"\\])*")\])?|\g<complex>|\$\{\g<complex>\})\}|(?#complexsyntax)\{(?<complex>\$(?<segment>\g<name>(\g<indices>*|\(.*?\))?)(?:->\g<segment>)*|\$\g<complex>|\$\{\g<complex>\})\}))\{/ 9618 9619/(?<n>a|b|c)\g<n>*/ 9620 abc 9621 0: abc 9622 1: a 9623 accccbbb 9624 0: accccbbb 9625 1: a 9626 9627/^X(?7)(a)(?|(b)|(q)(r)(s))(c)(d)(Y)/ 9628 XYabcdY 9629 0: XYabcdY 9630 1: a 9631 2: b 9632 3: <unset> 9633 4: <unset> 9634 5: c 9635 6: d 9636 7: Y 9637 9638/(?<=b(?1)|zzz)(a)/ 9639 xbaax 9640 0: a 9641 1: a 9642 xzzzax 9643 0: a 9644 1: a 9645 9646/(a)(?<=b\1)/ 9647 9648/(a)(?<=b+(?1))/ 9649Failed: error 125 at offset 3: lookbehind assertion is not fixed length 9650 9651/(a+)(?<=b(?1))/ 9652Failed: error 125 at offset 4: lookbehind assertion is not fixed length 9653 9654/(a(?<=b(?1)))/ 9655Failed: error 125 at offset 2: lookbehind assertion is not fixed length 9656 9657/(?<=b(?1))xyz/ 9658Failed: error 115 at offset 8: reference to non-existent subpattern 9659 9660/(?<=b(?1))xyz(b+)pqrstuvew/ 9661Failed: error 125 at offset 0: lookbehind assertion is not fixed length 9662 9663/(a|bc)\1/I 9664Capture group count = 1 9665Max back reference = 1 9666Starting code units: a b 9667Subject length lower bound = 2 9668 9669/(a|bc)\1{2,3}/I 9670Capture group count = 1 9671Max back reference = 1 9672Starting code units: a b 9673Subject length lower bound = 3 9674 9675/(a|bc)(?1)/I 9676Capture group count = 1 9677Starting code units: a b 9678Subject length lower bound = 2 9679 9680/(a|b\1)(a|b\1)/I 9681Capture group count = 2 9682Max back reference = 1 9683Starting code units: a b 9684Subject length lower bound = 2 9685 9686/(a|b\1){2}/I 9687Capture group count = 1 9688Max back reference = 1 9689Starting code units: a b 9690Subject length lower bound = 2 9691 9692/(a|bbbb\1)(a|bbbb\1)/I 9693Capture group count = 2 9694Max back reference = 1 9695Starting code units: a b 9696Subject length lower bound = 2 9697 9698/(a|bbbb\1){2}/I 9699Capture group count = 1 9700Max back reference = 1 9701Starting code units: a b 9702Subject length lower bound = 2 9703 9704/^From +([^ ]+) +[a-zA-Z][a-zA-Z][a-zA-Z] +[a-zA-Z][a-zA-Z][a-zA-Z] +[0-9]?[0-9] +[0-9][0-9]:[0-9][0-9]/I 9705Capture group count = 1 9706Compile options: <none> 9707Overall options: anchored 9708First code unit = 'F' 9709Last code unit = ':' 9710Subject length lower bound = 22 9711 9712/<tr([\w\W\s\d][^<>]{0,})><TD([\w\W\s\d][^<>]{0,})>([\d]{0,}\.)(.*)((<BR>([\w\W\s\d][^<>]{0,})|[\s]{0,}))<\/a><\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><\/TR>/Iis 9713Capture group count = 11 9714Options: caseless dotall 9715First code unit = '<' 9716Last code unit = '>' 9717Subject length lower bound = 47 9718 9719"(?>.*/)foo"I 9720Capture group count = 0 9721Last code unit = 'o' 9722Subject length lower bound = 4 9723 9724/(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /Ix 9725Capture group count = 0 9726Options: extended 9727Last code unit = '-' 9728Subject length lower bound = 8 9729 9730/(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/Ii 9731Capture group count = 1 9732Options: caseless 9733Starting code units: A B C a b c 9734Subject length lower bound = 1 9735 9736/(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/I 9737Capture group count = 0 9738Starting code units: c d 9739Last code unit = 'b' 9740Subject length lower bound = 41 9741 9742/<a[\s]+href[\s]*=[\s]* # find <a href= 9743 ([\"\'])? # find single or double quote 9744 (?(1) (.*?)\1 | ([^\s]+)) # if quote found, match up to next matching 9745 # quote, otherwise match up to next space 9746/Iisx 9747Capture group count = 3 9748Max back reference = 1 9749Options: caseless dotall extended 9750First code unit = '<' 9751Last code unit = '=' 9752Subject length lower bound = 9 9753 9754/^(?!:) # colon disallowed at start 9755 (?: # start of item 9756 (?: [0-9a-f]{1,4} | # 1-4 hex digits or 9757 (?(1)0 | () ) ) # if null previously matched, fail; else null 9758 : # followed by colon 9759 ){1,7} # end item; 1-7 of them required 9760 [0-9a-f]{1,4} $ # final hex number at end of string 9761 (?(1)|.) # check that there was an empty component 9762 /Iix 9763Capture group count = 1 9764Max back reference = 1 9765Compile options: caseless extended 9766Overall options: anchored caseless extended 9767Last code unit = ':' 9768Subject length lower bound = 2 9769 9770/(?|(?<a>A)|(?<a>B))/I 9771Capture group count = 1 9772Named capture groups: 9773 a 1 9774Starting code units: A B 9775Subject length lower bound = 1 9776 AB\=copy=a 9777 0: A 9778 1: A 9779 C A (1) a (group 1) 9780 BA\=copy=a 9781 0: B 9782 1: B 9783 C B (1) a (group 1) 9784 9785/(?|(?<a>A)|(?<b>B))/ 9786Failed: error 165 at offset 16: different names for subpatterns of the same number are not allowed 9787 9788/(?:a(?<quote> (?<apostrophe>')|(?<realquote>")) | 9789 b(?<quote> (?<apostrophe>')|(?<realquote>")) ) 9790 (?('quote')[a-z]+|[0-9]+)/Ix,dupnames 9791Capture group count = 6 9792Max back reference = 4 9793Named capture groups: 9794 apostrophe 2 9795 apostrophe 5 9796 quote 1 9797 quote 4 9798 realquote 3 9799 realquote 6 9800Options: dupnames extended 9801Starting code units: a b 9802Subject length lower bound = 3 9803 a"aaaaa 9804 0: a"aaaaa 9805 1: " 9806 2: <unset> 9807 3: " 9808 b"aaaaa 9809 0: b"aaaaa 9810 1: <unset> 9811 2: <unset> 9812 3: <unset> 9813 4: " 9814 5: <unset> 9815 6: " 9816\= Expect no match 9817 b"11111 9818No match 9819 a"11111 9820No match 9821 9822/^(?|(a)(b)(c)(?<D>d)|(?<D>e)) (?('D')X|Y)/IBx,dupnames 9823------------------------------------------------------------------ 9824 Bra 9825 ^ 9826 Bra 9827 CBra 1 9828 a 9829 Ket 9830 CBra 2 9831 b 9832 Ket 9833 CBra 3 9834 c 9835 Ket 9836 CBra 4 9837 d 9838 Ket 9839 Alt 9840 CBra 1 9841 e 9842 Ket 9843 Ket 9844 Cond 9845 Cond ref <D>2 9846 X 9847 Alt 9848 Y 9849 Ket 9850 Ket 9851 End 9852------------------------------------------------------------------ 9853Capture group count = 4 9854Max back reference = 4 9855Named capture groups: 9856 D 4 9857 D 1 9858Compile options: dupnames extended 9859Overall options: anchored dupnames extended 9860Starting code units: a e 9861Subject length lower bound = 2 9862 abcdX 9863 0: abcdX 9864 1: a 9865 2: b 9866 3: c 9867 4: d 9868 eX 9869 0: eX 9870 1: e 9871\= Expect no match 9872 abcdY 9873No match 9874 ey 9875No match 9876 9877/(?<A>a) (b)(c) (?<A>d (?(R&A)$ | (?4)) )/IBx,dupnames 9878------------------------------------------------------------------ 9879 Bra 9880 CBra 1 9881 a 9882 Ket 9883 CBra 2 9884 b 9885 Ket 9886 CBra 3 9887 c 9888 Ket 9889 CBra 4 9890 d 9891 Cond 9892 Cond recurse <A>2 9893 $ 9894 Alt 9895 Recurse 9896 Ket 9897 Ket 9898 Ket 9899 End 9900------------------------------------------------------------------ 9901Capture group count = 4 9902Max back reference = 4 9903Named capture groups: 9904 A 1 9905 A 4 9906Options: dupnames extended 9907First code unit = 'a' 9908Last code unit = 'd' 9909Subject length lower bound = 4 9910 abcdd 9911 0: abcdd 9912 1: a 9913 2: b 9914 3: c 9915 4: dd 9916\= Expect no match 9917 abcdde 9918No match 9919 9920/abcd*/ 9921 xxxxabcd\=ps 9922 0: abcd 9923 xxxxabcd\=ph 9924Partial match: abcd 9925 9926/abcd*/i 9927 xxxxabcd\=ps 9928 0: abcd 9929 xxxxabcd\=ph 9930Partial match: abcd 9931 XXXXABCD\=ps 9932 0: ABCD 9933 XXXXABCD\=ph 9934Partial match: ABCD 9935 9936/abc\d*/ 9937 xxxxabc1\=ps 9938 0: abc1 9939 xxxxabc1\=ph 9940Partial match: abc1 9941 9942/(a)bc\1*/ 9943 xxxxabca\=ps 9944 0: abca 9945 1: a 9946 xxxxabca\=ph 9947Partial match: abca 9948 9949/abc[de]*/ 9950 xxxxabcde\=ps 9951 0: abcde 9952 xxxxabcde\=ph 9953Partial match: abcde 9954 9955/(\3)(\1)(a)/allow_empty_class,match_unset_backref,dupnames 9956 cat 9957 0: a 9958 1: 9959 2: 9960 3: a 9961 9962/(\3)(\1)(a)/I,allow_empty_class,match_unset_backref,dupnames 9963Capture group count = 3 9964Max back reference = 3 9965Options: allow_empty_class dupnames match_unset_backref 9966Last code unit = 'a' 9967Subject length lower bound = 1 9968 cat 9969 0: a 9970 1: 9971 2: 9972 3: a 9973 9974/(\3)(\1)(a)/I 9975Capture group count = 3 9976Max back reference = 3 9977Last code unit = 'a' 9978Subject length lower bound = 3 9979\= Expect no match 9980 cat 9981No match 9982 9983/i(?(DEFINE)(?<s>a))/I 9984Capture group count = 1 9985Named capture groups: 9986 s 1 9987First code unit = 'i' 9988Subject length lower bound = 1 9989 i 9990 0: i 9991 9992/()i(?(1)a)/I 9993Capture group count = 1 9994Max back reference = 1 9995First code unit = 'i' 9996Subject length lower bound = 1 9997 ia 9998 0: ia 9999 1: 10000 10001/(?i)a(?-i)b|c/B 10002------------------------------------------------------------------ 10003 Bra 10004 /i a 10005 b 10006 Alt 10007 c 10008 Ket 10009 End 10010------------------------------------------------------------------ 10011 XabX 10012 0: ab 10013 XAbX 10014 0: Ab 10015 CcC 10016 0: c 10017\= Expect no match 10018 XABX 10019No match 10020 10021/(?i)a(?s)b|c/B 10022------------------------------------------------------------------ 10023 Bra 10024 /i ab 10025 Alt 10026 /i c 10027 Ket 10028 End 10029------------------------------------------------------------------ 10030 10031/(?i)a(?s-i)b|c/B 10032------------------------------------------------------------------ 10033 Bra 10034 /i a 10035 b 10036 Alt 10037 c 10038 Ket 10039 End 10040------------------------------------------------------------------ 10041 10042/^(ab(c\1)d|x){2}$/B 10043------------------------------------------------------------------ 10044 Bra 10045 ^ 10046 CBra 1 10047 ab 10048 CBra 2 10049 c 10050 \1 10051 Ket 10052 d 10053 Alt 10054 x 10055 Ket 10056 CBra 1 10057 ab 10058 CBra 2 10059 c 10060 \1 10061 Ket 10062 d 10063 Alt 10064 x 10065 Ket 10066 $ 10067 Ket 10068 End 10069------------------------------------------------------------------ 10070 xabcxd 10071 0: xabcxd 10072 1: abcxd 10073 2: cx 10074 10075/^(?&t)*+(?(DEFINE)(?<t>.))$/B 10076------------------------------------------------------------------ 10077 Bra 10078 ^ 10079 Braposzero 10080 SBraPos 10081 Recurse 10082 KetRpos 10083 Cond 10084 Cond false 10085 CBra 1 10086 Any 10087 Ket 10088 Ket 10089 $ 10090 Ket 10091 End 10092------------------------------------------------------------------ 10093 10094/^(?&t)*(?(DEFINE)(?<t>.))$/B 10095------------------------------------------------------------------ 10096 Bra 10097 ^ 10098 Brazero 10099 SBra 10100 Recurse 10101 KetRmax 10102 Cond 10103 Cond false 10104 CBra 1 10105 Any 10106 Ket 10107 Ket 10108 $ 10109 Ket 10110 End 10111------------------------------------------------------------------ 10112 10113# This one is here because Perl gives the match as "b" rather than "ab". I 10114# believe this to be a Perl bug. 10115 10116/(?>a\Kb)z|(ab)/ 10117 ab\=startchar 10118 0: ab 10119 1: ab 10120 10121/(?P<L1>(?P<L2>0|)|(?P>L2)(?P>L1))/ 10122 abcd 10123 0: 10124 1: 10125 2: 10126 0abc 10127 0: 0 10128 1: 0 10129 2: 0 10130 10131/abc(*MARK:)pqr/ 10132Failed: error 166 at offset 10: (*MARK) must have an argument 10133 10134/abc(*:)pqr/ 10135Failed: error 166 at offset 6: (*MARK) must have an argument 10136 10137/(*COMMIT:X)/B 10138------------------------------------------------------------------ 10139 Bra 10140 *COMMIT X 10141 Ket 10142 End 10143------------------------------------------------------------------ 10144 10145# This should, and does, fail. In Perl, it does not, which I think is a 10146# bug because replacing the B in the pattern by (B|D) does make it fail. 10147# Turning off Perl's optimization by inserting (??{""}) also makes it fail. 10148 10149/A(*COMMIT)B/aftertext,mark 10150\= Expect no match 10151 ACABX 10152No match 10153 10154# These should be different, but in Perl they are not, which I think 10155# is a bug in Perl. 10156 10157/A(*THEN)B|A(*THEN)C/mark 10158 AC 10159 0: AC 10160 10161/A(*PRUNE)B|A(*PRUNE)C/mark 10162\= Expect no match 10163 AC 10164No match 10165 10166# Mark names can be duplicated. Perl doesn't give a mark for this one, 10167# though PCRE2 does. 10168 10169/^A(*:A)B|^X(*:A)Y/mark 10170\= Expect no match 10171 XAQQ 10172No match, mark = A 10173 10174# COMMIT at the start of a pattern should be the same as an anchor. Perl 10175# optimizations defeat this. So does the PCRE2 optimization unless we disable 10176# it. 10177 10178/(*COMMIT)ABC/ 10179 ABCDEFG 10180 0: ABC 10181 10182/(*COMMIT)ABC/no_start_optimize 10183\= Expect no match 10184 DEFGABC 10185No match 10186 10187/^(ab (c+(*THEN)cd) | xyz)/x 10188\= Expect no match 10189 abcccd 10190No match 10191 10192/^(ab (c+(*PRUNE)cd) | xyz)/x 10193\= Expect no match 10194 abcccd 10195No match 10196 10197/^(ab (c+(*FAIL)cd) | xyz)/x 10198\= Expect no match 10199 abcccd 10200No match 10201 10202# Perl gets some of these wrong 10203 10204/(?>.(*ACCEPT))*?5/ 10205 abcde 10206 0: a 10207 10208/(.(*ACCEPT))*?5/ 10209 abcde 10210 0: a 10211 1: a 10212 10213/(.(*ACCEPT))5/ 10214 abcde 10215 0: a 10216 1: a 10217 10218/(.(*ACCEPT))*5/ 10219 abcde 10220 0: a 10221 1: a 10222 10223/A\NB./B 10224------------------------------------------------------------------ 10225 Bra 10226 A 10227 Any 10228 B 10229 Any 10230 Ket 10231 End 10232------------------------------------------------------------------ 10233 ACBD 10234 0: ACBD 10235\= Expect no match 10236 A\nB 10237No match 10238 ACB\n 10239No match 10240 10241/A\NB./Bs 10242------------------------------------------------------------------ 10243 Bra 10244 A 10245 Any 10246 B 10247 AllAny 10248 Ket 10249 End 10250------------------------------------------------------------------ 10251 ACBD 10252 0: ACBD 10253 ACB\n 10254 0: ACB\x0a 10255\= Expect no match 10256 A\nB 10257No match 10258 10259/A\NB/newline=crlf 10260 A\nB 10261 0: A\x0aB 10262 A\rB 10263 0: A\x0dB 10264\= Expect no match 10265 A\r\nB 10266No match 10267 10268/\R+b/B 10269------------------------------------------------------------------ 10270 Bra 10271 \R++ 10272 b 10273 Ket 10274 End 10275------------------------------------------------------------------ 10276 10277/\R+\n/B 10278------------------------------------------------------------------ 10279 Bra 10280 \R+ 10281 \x0a 10282 Ket 10283 End 10284------------------------------------------------------------------ 10285 10286/\R+\d/B 10287------------------------------------------------------------------ 10288 Bra 10289 \R++ 10290 \d 10291 Ket 10292 End 10293------------------------------------------------------------------ 10294 10295/\d*\R/B 10296------------------------------------------------------------------ 10297 Bra 10298 \d*+ 10299 \R 10300 Ket 10301 End 10302------------------------------------------------------------------ 10303 10304/\s*\R/B 10305------------------------------------------------------------------ 10306 Bra 10307 \s* 10308 \R 10309 Ket 10310 End 10311------------------------------------------------------------------ 10312 \x20\x0a 10313 0: \x0a 10314 \x20\x0d 10315 0: \x0d 10316 \x20\x0d\x0a 10317 0: \x0d\x0a 10318 10319/\S*\R/B 10320------------------------------------------------------------------ 10321 Bra 10322 \S*+ 10323 \R 10324 Ket 10325 End 10326------------------------------------------------------------------ 10327 a\x0a 10328 0: a\x0a 10329 10330/X\h*\R/B 10331------------------------------------------------------------------ 10332 Bra 10333 X 10334 \h*+ 10335 \R 10336 Ket 10337 End 10338------------------------------------------------------------------ 10339 X\x20\x0a 10340 0: X \x0a 10341 10342/X\H*\R/B 10343------------------------------------------------------------------ 10344 Bra 10345 X 10346 \H* 10347 \R 10348 Ket 10349 End 10350------------------------------------------------------------------ 10351 X\x0d\x0a 10352 0: X\x0d\x0a 10353 10354/X\H+\R/B 10355------------------------------------------------------------------ 10356 Bra 10357 X 10358 \H+ 10359 \R 10360 Ket 10361 End 10362------------------------------------------------------------------ 10363 X\x0d\x0a 10364 0: X\x0d\x0a 10365 10366/X\H++\R/B 10367------------------------------------------------------------------ 10368 Bra 10369 X 10370 \H++ 10371 \R 10372 Ket 10373 End 10374------------------------------------------------------------------ 10375\= Expect no match 10376 X\x0d\x0a 10377No match 10378 10379/(?<=abc)def/ 10380 abc\=ph 10381Partial match: 10382 10383/abc$/ 10384 abc 10385 0: abc 10386 abc\=ps 10387 0: abc 10388 abc\=ph 10389Partial match: abc 10390 10391/abc$/m 10392 abc 10393 0: abc 10394 abc\n 10395 0: abc 10396 abc\=ph 10397Partial match: abc 10398 abc\n\=ph 10399 0: abc 10400 abc\=ps 10401 0: abc 10402 abc\n\=ps 10403 0: abc 10404 10405/abc\z/ 10406 abc 10407 0: abc 10408 abc\=ps 10409 0: abc 10410 abc\=ph 10411Partial match: abc 10412 10413/abc\Z/ 10414 abc 10415 0: abc 10416 abc\=ps 10417 0: abc 10418 abc\=ph 10419Partial match: abc 10420 10421/abc\b/ 10422 abc 10423 0: abc 10424 abc\=ps 10425 0: abc 10426 abc\=ph 10427Partial match: abc 10428 10429/abc\B/ 10430 abc\=ps 10431Partial match: abc 10432 abc\=ph 10433Partial match: abc 10434\= Expect no match 10435 abc 10436No match 10437 10438/.+/ 10439\= Bad offsets 10440 abc\=offset=4 10441Failed: error -33: bad offset value 10442 abc\=offset=-4 10443** Invalid value in 'offset=-4' 10444\= Valid data 10445 abc\=offset=0 10446 0: abc 10447 abc\=offset=1 10448 0: bc 10449 abc\=offset=2 10450 0: c 10451\= Expect no match 10452 abc\=offset=3 10453No match 10454 10455/^\cģ/ 10456Failed: error 168 at offset 3: \c must be followed by a printable ASCII character 10457 10458/(?P<abn>(?P=abn)xxx)/B 10459------------------------------------------------------------------ 10460 Bra 10461 CBra 1 10462 \1 10463 xxx 10464 Ket 10465 Ket 10466 End 10467------------------------------------------------------------------ 10468 10469/(a\1z)/B 10470------------------------------------------------------------------ 10471 Bra 10472 CBra 1 10473 a 10474 \1 10475 z 10476 Ket 10477 Ket 10478 End 10479------------------------------------------------------------------ 10480 10481/(?P<abn>(?P=abn)(?<badstufxxx)/B 10482Failed: error 142 at offset 29: syntax error in subpattern name (missing terminator?) 10483 10484/(?P<abn>(?P=axn)xxx)/B 10485Failed: error 115 at offset 12: reference to non-existent subpattern 10486 10487/(?P<abn>(?P=axn)xxx)(?<axn>yy)/B 10488------------------------------------------------------------------ 10489 Bra 10490 CBra 1 10491 \2 10492 xxx 10493 Ket 10494 CBra 2 10495 yy 10496 Ket 10497 Ket 10498 End 10499------------------------------------------------------------------ 10500 10501# These tests are here because Perl gets the first one wrong. 10502 10503/(\R*)(.)/s 10504 \r\n 10505 0: \x0d 10506 1: 10507 2: \x0d 10508 \r\r\n\n\r 10509 0: \x0d\x0d\x0a\x0a\x0d 10510 1: \x0d\x0d\x0a\x0a 10511 2: \x0d 10512 \r\r\n\n\r\n 10513 0: \x0d\x0d\x0a\x0a\x0d 10514 1: \x0d\x0d\x0a\x0a 10515 2: \x0d 10516 10517/(\R)*(.)/s 10518 \r\n 10519 0: \x0d 10520 1: <unset> 10521 2: \x0d 10522 \r\r\n\n\r 10523 0: \x0d\x0d\x0a\x0a\x0d 10524 1: \x0a 10525 2: \x0d 10526 \r\r\n\n\r\n 10527 0: \x0d\x0d\x0a\x0a\x0d 10528 1: \x0a 10529 2: \x0d 10530 10531/((?>\r\n|\n|\x0b|\f|\r|\x85)*)(.)/s 10532 \r\n 10533 0: \x0d 10534 1: 10535 2: \x0d 10536 \r\r\n\n\r 10537 0: \x0d\x0d\x0a\x0a\x0d 10538 1: \x0d\x0d\x0a\x0a 10539 2: \x0d 10540 \r\r\n\n\r\n 10541 0: \x0d\x0d\x0a\x0a\x0d 10542 1: \x0d\x0d\x0a\x0a 10543 2: \x0d 10544 10545# ------------- 10546 10547/^abc$/B 10548------------------------------------------------------------------ 10549 Bra 10550 ^ 10551 abc 10552 $ 10553 Ket 10554 End 10555------------------------------------------------------------------ 10556 10557/^abc$/Bm 10558------------------------------------------------------------------ 10559 Bra 10560 /m ^ 10561 abc 10562 /m $ 10563 Ket 10564 End 10565------------------------------------------------------------------ 10566 10567/^(a)*+(\w)/ 10568 aaaaX 10569 0: aaaaX 10570 1: a 10571 2: X 10572\= Expect no match 10573 aaaa 10574No match 10575 10576/^(?:a)*+(\w)/ 10577 aaaaX 10578 0: aaaaX 10579 1: X 10580\= Expect no match 10581 aaaa 10582No match 10583 10584/(a)++1234/IB 10585------------------------------------------------------------------ 10586 Bra 10587 CBraPos 1 10588 a 10589 KetRpos 10590 1234 10591 Ket 10592 End 10593------------------------------------------------------------------ 10594Capture group count = 1 10595First code unit = 'a' 10596Last code unit = '4' 10597Subject length lower bound = 5 10598 10599/([abc])++1234/I 10600Capture group count = 1 10601Starting code units: a b c 10602Last code unit = '4' 10603Subject length lower bound = 5 10604 10605/(?<=(abc)+)X/ 10606Failed: error 125 at offset 0: lookbehind assertion is not fixed length 10607 10608/(^ab)/I 10609Capture group count = 1 10610Compile options: <none> 10611Overall options: anchored 10612First code unit = 'a' 10613Subject length lower bound = 2 10614 10615/(^ab)++/I 10616Capture group count = 1 10617Compile options: <none> 10618Overall options: anchored 10619First code unit = 'a' 10620Subject length lower bound = 2 10621 10622/(^ab|^)+/I 10623Capture group count = 1 10624May match empty string 10625Compile options: <none> 10626Overall options: anchored 10627Subject length lower bound = 0 10628 10629/(^ab|^)++/I 10630Capture group count = 1 10631May match empty string 10632Compile options: <none> 10633Overall options: anchored 10634Subject length lower bound = 0 10635 10636/(?:^ab)/I 10637Capture group count = 0 10638Compile options: <none> 10639Overall options: anchored 10640First code unit = 'a' 10641Subject length lower bound = 2 10642 10643/(?:^ab)++/I 10644Capture group count = 0 10645Compile options: <none> 10646Overall options: anchored 10647First code unit = 'a' 10648Subject length lower bound = 2 10649 10650/(?:^ab|^)+/I 10651Capture group count = 0 10652May match empty string 10653Compile options: <none> 10654Overall options: anchored 10655Subject length lower bound = 0 10656 10657/(?:^ab|^)++/I 10658Capture group count = 0 10659May match empty string 10660Compile options: <none> 10661Overall options: anchored 10662Subject length lower bound = 0 10663 10664/(.*ab)/I 10665Capture group count = 1 10666First code unit at start or follows newline 10667Last code unit = 'b' 10668Subject length lower bound = 2 10669 10670/(.*ab)++/I 10671Capture group count = 1 10672First code unit at start or follows newline 10673Last code unit = 'b' 10674Subject length lower bound = 2 10675 10676/(.*ab|.*)+/I 10677Capture group count = 1 10678May match empty string 10679First code unit at start or follows newline 10680Subject length lower bound = 0 10681 10682/(.*ab|.*)++/I 10683Capture group count = 1 10684May match empty string 10685First code unit at start or follows newline 10686Subject length lower bound = 0 10687 10688/(?:.*ab)/I 10689Capture group count = 0 10690First code unit at start or follows newline 10691Last code unit = 'b' 10692Subject length lower bound = 2 10693 10694/(?:.*ab)++/I 10695Capture group count = 0 10696First code unit at start or follows newline 10697Last code unit = 'b' 10698Subject length lower bound = 2 10699 10700/(?:.*ab|.*)+/I 10701Capture group count = 0 10702May match empty string 10703First code unit at start or follows newline 10704Subject length lower bound = 0 10705 10706/(?:.*ab|.*)++/I 10707Capture group count = 0 10708May match empty string 10709First code unit at start or follows newline 10710Subject length lower bound = 0 10711 10712/(?=a)[bcd]/I 10713Capture group count = 0 10714First code unit = 'a' 10715Subject length lower bound = 1 10716 10717/((?=a))[bcd]/I 10718Capture group count = 1 10719First code unit = 'a' 10720Subject length lower bound = 1 10721 10722/((?=a))+[bcd]/I 10723Capture group count = 1 10724First code unit = 'a' 10725Subject length lower bound = 1 10726 10727/((?=a))++[bcd]/I 10728Capture group count = 1 10729First code unit = 'a' 10730Subject length lower bound = 1 10731 10732/(?=a+)[bcd]/Ii 10733Capture group count = 0 10734Options: caseless 10735First code unit = 'a' (caseless) 10736Subject length lower bound = 1 10737 10738/(?=a+?)[bcd]/Ii 10739Capture group count = 0 10740Options: caseless 10741First code unit = 'a' (caseless) 10742Subject length lower bound = 1 10743 10744/(?=a++)[bcd]/Ii 10745Capture group count = 0 10746Options: caseless 10747First code unit = 'a' (caseless) 10748Subject length lower bound = 1 10749 10750/(?=a{3})[bcd]/Ii 10751Capture group count = 0 10752Options: caseless 10753First code unit = 'a' (caseless) 10754Last code unit = 'a' (caseless) 10755Subject length lower bound = 2 10756 10757/(abc)\1+/ 10758 10759# Perl doesn't get these right IMO (the 3rd is PCRE2-specific) 10760 10761/(?1)(?:(b(*ACCEPT))){0}/ 10762 b 10763 0: b 10764 10765/(?1)(?:(b(*ACCEPT))){0}c/ 10766 bc 10767 0: bc 10768\= Expect no match 10769 b 10770No match 10771 10772/(?1)(?:((*ACCEPT))){0}c/ 10773 c 10774 0: c 10775 c\=notempty 10776 0: c 10777 10778/^.*?(?(?=a)a|b(*THEN)c)/ 10779\= Expect no match 10780 ba 10781No match 10782 10783/^.*?(?(?=a)a|bc)/ 10784 ba 10785 0: ba 10786 10787/^.*?(?(?=a)a(*THEN)b|c)/ 10788\= Expect no match 10789 ac 10790No match 10791 10792/^.*?(?(?=a)a(*THEN)b)c/ 10793\= Expect no match 10794 ac 10795No match 10796 10797/^.*?(a(*THEN)b)c/ 10798\= Expect no match 10799 aabc 10800No match 10801 10802/^.*? (?1) c (?(DEFINE)(a(*THEN)b))/x 10803 aabc 10804 0: aabc 10805 10806/^.*?(a(*THEN)b|z)c/ 10807 aabc 10808 0: aabc 10809 1: ab 10810 10811/^.*?(z|a(*THEN)b)c/ 10812 aabc 10813 0: aabc 10814 1: ab 10815 10816# These are here because they are not Perl-compatible; the studying means the 10817# mark is not seen. 10818 10819/(*MARK:A)(*SKIP:B)(C|X)/mark 10820 C 10821 0: C 10822 1: C 10823MK: A 10824\= Expect no match 10825 D 10826No match, mark = A 10827 10828/(*:A)A+(*SKIP:A)(B|Z)/mark 10829\= Expect no match 10830 AAAC 10831No match, mark = A 10832 10833# ---------------------------- 10834 10835"(?=a*(*ACCEPT)b)c" 10836 c 10837 0: c 10838 c\=notempty 10839 0: c 10840 10841/(?1)c(?(DEFINE)((*ACCEPT)b))/ 10842 c 10843 0: c 10844 c\=notempty 10845 0: c 10846 10847/(?>(*ACCEPT)b)c/ 10848 c 10849 0: 10850\= Expect no match 10851 c\=notempty 10852No match 10853 10854/(?:(?>(a)))+a%/allaftertext 10855 %aa% 10856 0: aa% 10857 0+ 10858 1: a 10859 1+ a% 10860 10861/(a)b|ac/allaftertext 10862 ac\=ovector=1 10863 0: ac 10864 0+ 10865 10866/(a)(b)x|abc/allaftertext 10867 abc\=ovector=2 10868 0: abc 10869 0+ 10870 10871/(a)bc|(a)(b)\2/ 10872 abc\=ovector=1 10873Matched, but too many substrings 10874 0: abc 10875 abc\=ovector=2 10876 0: abc 10877 1: a 10878 aba\=ovector=1 10879Matched, but too many substrings 10880 0: aba 10881 aba\=ovector=2 10882Matched, but too many substrings 10883 0: aba 10884 1: <unset> 10885 aba\=ovector=3 10886Matched, but too many substrings 10887 0: aba 10888 1: <unset> 10889 2: a 10890 aba\=ovector=4 10891 0: aba 10892 1: <unset> 10893 2: a 10894 3: b 10895 10896/(?(DEFINE)(a(?2)|b)(b(?1)|a))(?:(?1)|(?2))/I 10897Capture group count = 2 10898May match empty string 10899Subject length lower bound = 0 10900 10901/(a(?2)|b)(b(?1)|a)(?:(?1)|(?2))/I 10902Capture group count = 2 10903Starting code units: a b 10904Subject length lower bound = 3 10905 10906/(a(?2)|b)(b(?1)|a)(?1)(?2)/I 10907Capture group count = 2 10908Starting code units: a b 10909Subject length lower bound = 4 10910 10911/(abc)(?1)/I 10912Capture group count = 1 10913First code unit = 'a' 10914Last code unit = 'c' 10915Subject length lower bound = 6 10916 10917/(?:(foo)|(bar)|(baz))X/allcaptures 10918 bazfooX 10919 0: fooX 10920 1: foo 10921 2: <unset> 10922 3: <unset> 10923 foobazbarX 10924 0: barX 10925 1: <unset> 10926 2: bar 10927 3: <unset> 10928 barfooX 10929 0: fooX 10930 1: foo 10931 2: <unset> 10932 3: <unset> 10933 bazX 10934 0: bazX 10935 1: <unset> 10936 2: <unset> 10937 3: baz 10938 foobarbazX 10939 0: bazX 10940 1: <unset> 10941 2: <unset> 10942 3: baz 10943 bazfooX\=ovector=0 10944 0: fooX 10945 1: foo 10946 2: <unset> 10947 3: <unset> 10948 bazfooX\=ovector=1 10949Matched, but too many substrings 10950 0: fooX 10951 bazfooX\=ovector=2 10952 0: fooX 10953 1: foo 10954 bazfooX\=ovector=3 10955 0: fooX 10956 1: foo 10957 2: <unset> 10958 10959/(?=abc){3}abc/B 10960------------------------------------------------------------------ 10961 Bra 10962 Assert 10963 abc 10964 Ket 10965 Assert 10966 abc 10967 Ket 10968 Assert 10969 abc 10970 Ket 10971 abc 10972 Ket 10973 End 10974------------------------------------------------------------------ 10975 10976/(?=abc)+abc/B 10977------------------------------------------------------------------ 10978 Bra 10979 Assert 10980 abc 10981 Ket 10982 Brazero 10983 Assert 10984 abc 10985 Ket 10986 abc 10987 Ket 10988 End 10989------------------------------------------------------------------ 10990 10991/(?=abc)++abc/B 10992------------------------------------------------------------------ 10993 Bra 10994 Once 10995 Assert 10996 abc 10997 Ket 10998 Brazero 10999 Assert 11000 abc 11001 Ket 11002 Ket 11003 abc 11004 Ket 11005 End 11006------------------------------------------------------------------ 11007 11008/(?=abc){0}xyz/B 11009------------------------------------------------------------------ 11010 Bra 11011 Skip zero 11012 Assert 11013 abc 11014 Ket 11015 xyz 11016 Ket 11017 End 11018------------------------------------------------------------------ 11019 11020/(?=(a))?./B 11021------------------------------------------------------------------ 11022 Bra 11023 Brazero 11024 Assert 11025 CBra 1 11026 a 11027 Ket 11028 Ket 11029 Any 11030 Ket 11031 End 11032------------------------------------------------------------------ 11033 11034/(?=(a))??./B 11035------------------------------------------------------------------ 11036 Bra 11037 Braminzero 11038 Assert 11039 CBra 1 11040 a 11041 Ket 11042 Ket 11043 Any 11044 Ket 11045 End 11046------------------------------------------------------------------ 11047 11048/^(?=(a)){0}b(?1)/B 11049------------------------------------------------------------------ 11050 Bra 11051 ^ 11052 Skip zero 11053 Assert 11054 CBra 1 11055 a 11056 Ket 11057 Ket 11058 b 11059 Recurse 11060 Ket 11061 End 11062------------------------------------------------------------------ 11063 11064/(?(DEFINE)(a))?b(?1)/B 11065------------------------------------------------------------------ 11066 Bra 11067 Cond 11068 Cond false 11069 CBra 1 11070 a 11071 Ket 11072 Ket 11073 b 11074 Recurse 11075 Ket 11076 End 11077------------------------------------------------------------------ 11078 11079/^(?=(?1))?[az]([abc])d/B 11080------------------------------------------------------------------ 11081 Bra 11082 ^ 11083 Brazero 11084 Assert 11085 Recurse 11086 Ket 11087 [az] 11088 CBra 1 11089 [a-c] 11090 Ket 11091 d 11092 Ket 11093 End 11094------------------------------------------------------------------ 11095 11096/^(?!a){0}\w+/B 11097------------------------------------------------------------------ 11098 Bra 11099 ^ 11100 Skip zero 11101 Assert not 11102 a 11103 Ket 11104 \w++ 11105 Ket 11106 End 11107------------------------------------------------------------------ 11108 11109/(?<=(abc))?xyz/B 11110------------------------------------------------------------------ 11111 Bra 11112 Brazero 11113 Assert back 11114 Reverse 11115 CBra 1 11116 abc 11117 Ket 11118 Ket 11119 xyz 11120 Ket 11121 End 11122------------------------------------------------------------------ 11123 11124/[:a[:abc]b:]/B 11125------------------------------------------------------------------ 11126 Bra 11127 [:[a-c] 11128 b:] 11129 Ket 11130 End 11131------------------------------------------------------------------ 11132 11133/^(a(*:A)(d|e(*:B))z|aeq)/auto_callout 11134 adz 11135--->adz 11136 +0 ^ ^ 11137 +1 ^ ( 11138 +2 ^ a 11139 +3 ^^ (*:A) 11140 +8 ^^ ( 11141Latest Mark: A 11142 +9 ^^ d 11143+10 ^ ^ | 11144+18 ^ ^ z 11145+19 ^ ^ | 11146+24 ^ ^ End of pattern 11147 0: adz 11148 1: adz 11149 2: d 11150 aez 11151--->aez 11152 +0 ^ ^ 11153 +1 ^ ( 11154 +2 ^ a 11155 +3 ^^ (*:A) 11156 +8 ^^ ( 11157Latest Mark: A 11158 +9 ^^ d 11159+11 ^^ e 11160+12 ^ ^ (*:B) 11161+17 ^ ^ ) 11162Latest Mark: B 11163+18 ^ ^ z 11164+19 ^ ^ | 11165+24 ^ ^ End of pattern 11166 0: aez 11167 1: aez 11168 2: e 11169 aeqwerty 11170--->aeqwerty 11171 +0 ^ ^ 11172 +1 ^ ( 11173 +2 ^ a 11174 +3 ^^ (*:A) 11175 +8 ^^ ( 11176Latest Mark: A 11177 +9 ^^ d 11178+11 ^^ e 11179+12 ^ ^ (*:B) 11180+17 ^ ^ ) 11181Latest Mark: B 11182+18 ^ ^ z 11183+20 ^ a 11184+21 ^^ e 11185+22 ^ ^ q 11186+23 ^ ^ ) 11187+24 ^ ^ End of pattern 11188 0: aeq 11189 1: aeq 11190 11191/.(*F)/ 11192\= Expect no match 11193 abc\=ph 11194No match 11195 11196/\btype\b\W*?\btext\b\W*?\bjavascript\b/I 11197Capture group count = 0 11198Max lookbehind = 1 11199First code unit = 't' 11200Last code unit = 't' 11201Subject length lower bound = 18 11202 11203/\btype\b\W*?\btext\b\W*?\bjavascript\b|\burl\b\W*?\bshell:|<input\b.*?\btype\b\W*?\bimage\b|\bonkeyup\b\W*?\=/I 11204Capture group count = 0 11205Max lookbehind = 1 11206Starting code units: < o t u 11207Subject length lower bound = 8 11208 11209/a(*SKIP)c|b(*ACCEPT)|/I,aftertext 11210Capture group count = 0 11211May match empty string 11212Subject length lower bound = 0 11213 a 11214 0: 11215 0+ 11216 11217/a(*SKIP)c|b(*ACCEPT)cd(*ACCEPT)|x/I 11218Capture group count = 0 11219Starting code units: a b x 11220Subject length lower bound = 1 11221 ax 11222 0: x 11223 11224'a*(*ACCEPT)b'aftertext 11225 abc\=notempty_atstart 11226 0: a 11227 0+ bc 11228 bbb\=notempty_atstart 11229 0: 11230 0+ bb 11231\= Expect no match 11232 \=notempty_atstart 11233No match 11234 11235/(*ACCEPT)a/I,aftertext 11236Capture group count = 0 11237May match empty string 11238Subject length lower bound = 0 11239 bax 11240 0: 11241 0+ bax 11242 11243/z(*ACCEPT)a/I,aftertext 11244Capture group count = 0 11245First code unit = 'z' 11246Subject length lower bound = 1 11247 baxzbx 11248 0: z 11249 0+ bx 11250 11251/^(?>a+)(?>(z+))\w/B 11252------------------------------------------------------------------ 11253 Bra 11254 ^ 11255 Once 11256 a++ 11257 Ket 11258 Once 11259 CBra 1 11260 z++ 11261 Ket 11262 Ket 11263 \w 11264 Ket 11265 End 11266------------------------------------------------------------------ 11267 aaaazzzzb 11268 0: aaaazzzzb 11269 1: zzzz 11270\= Expect no match 11271 aazz 11272No match 11273 11274/(.)(\1|a(?2))/ 11275 bab 11276 0: bab 11277 1: b 11278 2: ab 11279 11280/\1|(.)(?R)\1/ 11281 cbbbc 11282 0: cbbbc 11283 1: c 11284 11285/(.)((?(1)c|a)|a(?2))/ 11286\= Expect no match 11287 baa 11288No match 11289 11290/(?P<abn>(?P=abn)xxx)/B 11291------------------------------------------------------------------ 11292 Bra 11293 CBra 1 11294 \1 11295 xxx 11296 Ket 11297 Ket 11298 End 11299------------------------------------------------------------------ 11300 11301/(a\1z)/B 11302------------------------------------------------------------------ 11303 Bra 11304 CBra 1 11305 a 11306 \1 11307 z 11308 Ket 11309 Ket 11310 End 11311------------------------------------------------------------------ 11312 11313/^a\x41z/alt_bsux,allow_empty_class,match_unset_backref,dupnames 11314 aAz 11315 0: aAz 11316\= Expect no match 11317 ax41z 11318No match 11319 11320/^a[m\x41]z/alt_bsux,allow_empty_class,match_unset_backref,dupnames 11321 aAz 11322 0: aAz 11323 11324/^a\x1z/alt_bsux,allow_empty_class,match_unset_backref,dupnames 11325 ax1z 11326 0: ax1z 11327 11328/^a\u0041z/alt_bsux,allow_empty_class,match_unset_backref,dupnames 11329 aAz 11330 0: aAz 11331\= Expect no match 11332 au0041z 11333No match 11334 11335/^a[m\u0041]z/alt_bsux,allow_empty_class,match_unset_backref,dupnames 11336 aAz 11337 0: aAz 11338 11339/^a\u041z/alt_bsux,allow_empty_class,match_unset_backref,dupnames 11340 au041z 11341 0: au041z 11342\= Expect no match 11343 aAz 11344No match 11345 11346/^a\U0041z/alt_bsux,allow_empty_class,match_unset_backref,dupnames 11347 aU0041z 11348 0: aU0041z 11349\= Expect no match 11350 aAz 11351No match 11352 11353/^\u{7a}/alt_bsux 11354 u{7a} 11355 0: u{7a} 11356\= Expect no match 11357 zoo 11358No match 11359 11360/^\u{7a}/extra_alt_bsux 11361 zoo 11362 0: z 11363 11364/(?(?=c)c|d)++Y/B 11365------------------------------------------------------------------ 11366 Bra 11367 BraPos 11368 Cond 11369 Assert 11370 c 11371 Ket 11372 c 11373 Alt 11374 d 11375 Ket 11376 KetRpos 11377 Y 11378 Ket 11379 End 11380------------------------------------------------------------------ 11381 11382/(?(?=c)c|d)*+Y/B 11383------------------------------------------------------------------ 11384 Bra 11385 Braposzero 11386 BraPos 11387 Cond 11388 Assert 11389 c 11390 Ket 11391 c 11392 Alt 11393 d 11394 Ket 11395 KetRpos 11396 Y 11397 Ket 11398 End 11399------------------------------------------------------------------ 11400 11401/a[\NB]c/ 11402Failed: error 171 at offset 4: \N is not supported in a class 11403 aNc 11404 11405/a[B-\Nc]/ 11406Failed: error 150 at offset 6: invalid range in character class 11407 11408/a[B\Nc]/ 11409Failed: error 171 at offset 5: \N is not supported in a class 11410 11411/(a)(?2){0,1999}?(b)/ 11412 11413/(a)(?(DEFINE)(b))(?2){0,1999}?(?2)/ 11414 11415# This test, with something more complicated than individual letters, causes 11416# different behaviour in Perl. Perhaps it disables some optimization; no tag is 11417# passed back for the failures, whereas in PCRE2 there is a tag. 11418 11419/(A|P)(*:A)(B|P) | (X|P)(X|P)(*:B)(Y|P)/x,mark 11420 AABC 11421 0: AB 11422 1: A 11423 2: B 11424MK: A 11425 XXYZ 11426 0: XXY 11427 1: <unset> 11428 2: <unset> 11429 3: X 11430 4: X 11431 5: Y 11432MK: B 11433\= Expect no match 11434 XAQQ 11435No match, mark = A 11436 XAQQXZZ 11437No match, mark = A 11438 AXQQQ 11439No match, mark = A 11440 AXXQQQ 11441No match, mark = B 11442 11443# Perl doesn't give marks for these, though it does if the alternatives are 11444# replaced by single letters. 11445 11446/(b|q)(*:m)f|a(*:n)w/mark 11447 aw 11448 0: aw 11449MK: n 11450\= Expect no match 11451 abc 11452No match, mark = m 11453 11454/(q|b)(*:m)f|a(*:n)w/mark 11455 aw 11456 0: aw 11457MK: n 11458\= Expect no match 11459 abc 11460No match, mark = m 11461 11462# After a partial match, the behaviour is as for a failure. 11463 11464/^a(*:X)bcde/mark 11465 abc\=ps 11466Partial match, mark=X: abc 11467 11468# These are here because Perl doesn't return a mark, except for the first. 11469 11470/(?=(*:x))(q|)/aftertext,mark 11471 abc 11472 0: 11473 0+ abc 11474 1: 11475MK: x 11476 11477/(?=(*:x))((*:y)q|)/aftertext,mark 11478 abc 11479 0: 11480 0+ abc 11481 1: 11482MK: x 11483 11484/(?=(*:x))(?:(*:y)q|)/aftertext,mark 11485 abc 11486 0: 11487 0+ abc 11488MK: x 11489 11490/(?=(*:x))(?>(*:y)q|)/aftertext,mark 11491 abc 11492 0: 11493 0+ abc 11494MK: x 11495 11496/(?=a(*:x))(?!a(*:y)c)/aftertext,mark 11497 ab 11498 0: 11499 0+ ab 11500MK: x 11501 11502/(?=a(*:x))(?=a(*:y)c|)/aftertext,mark 11503 ab 11504 0: 11505 0+ ab 11506MK: x 11507 11508/(..)\1/ 11509 ab\=ps 11510Partial match: ab 11511 aba\=ps 11512Partial match: aba 11513 abab\=ps 11514 0: abab 11515 1: ab 11516 11517/(..)\1/i 11518 ab\=ps 11519Partial match: ab 11520 abA\=ps 11521Partial match: abA 11522 aBAb\=ps 11523 0: aBAb 11524 1: aB 11525 11526/(..)\1{2,}/ 11527 ab\=ps 11528Partial match: ab 11529 aba\=ps 11530Partial match: aba 11531 abab\=ps 11532Partial match: abab 11533 ababa\=ps 11534Partial match: ababa 11535 ababab\=ps 11536 0: ababab 11537 1: ab 11538 ababab\=ph 11539Partial match: ababab 11540 abababa\=ps 11541 0: ababab 11542 1: ab 11543 abababa\=ph 11544Partial match: abababa 11545 11546/(..)\1{2,}/i 11547 ab\=ps 11548Partial match: ab 11549 aBa\=ps 11550Partial match: aBa 11551 aBAb\=ps 11552Partial match: aBAb 11553 AbaBA\=ps 11554Partial match: AbaBA 11555 abABAb\=ps 11556 0: abABAb 11557 1: ab 11558 aBAbaB\=ph 11559Partial match: aBAbaB 11560 abABabA\=ps 11561 0: abABab 11562 1: ab 11563 abaBABa\=ph 11564Partial match: abaBABa 11565 11566/(..)\1{2,}?x/i 11567 ab\=ps 11568Partial match: ab 11569 abA\=ps 11570Partial match: abA 11571 aBAb\=ps 11572Partial match: aBAb 11573 abaBA\=ps 11574Partial match: abaBA 11575 abAbaB\=ps 11576Partial match: abAbaB 11577 abaBabA\=ps 11578Partial match: abaBabA 11579 abAbABaBx\=ps 11580 0: abAbABaBx 11581 1: ab 11582 11583/^(..)\1/ 11584 aba\=ps 11585Partial match: aba 11586 11587/^(..)\1{2,3}x/ 11588 aba\=ps 11589Partial match: aba 11590 ababa\=ps 11591Partial match: ababa 11592 ababa\=ph 11593Partial match: ababa 11594 abababx 11595 0: abababx 11596 1: ab 11597 ababababx 11598 0: ababababx 11599 1: ab 11600 11601/^(..)\1{2,3}?x/ 11602 aba\=ps 11603Partial match: aba 11604 ababa\=ps 11605Partial match: ababa 11606 ababa\=ph 11607Partial match: ababa 11608 abababx 11609 0: abababx 11610 1: ab 11611 ababababx 11612 0: ababababx 11613 1: ab 11614 11615/^(..)(\1{2,3})ab/ 11616 abababab 11617 0: abababab 11618 1: ab 11619 2: abab 11620 11621/^\R/ 11622 \r\=ps 11623 0: \x0d 11624 \r\=ph 11625Partial match: \x0d 11626 11627/^\R{2,3}x/ 11628 \r\=ps 11629Partial match: \x0d 11630 \r\=ph 11631Partial match: \x0d 11632 \r\r\=ps 11633Partial match: \x0d\x0d 11634 \r\r\=ph 11635Partial match: \x0d\x0d 11636 \r\r\r\=ps 11637Partial match: \x0d\x0d\x0d 11638 \r\r\r\=ph 11639Partial match: \x0d\x0d\x0d 11640 \r\rx 11641 0: \x0d\x0dx 11642 \r\r\rx 11643 0: \x0d\x0d\x0dx 11644 11645/^\R{2,3}?x/ 11646 \r\=ps 11647Partial match: \x0d 11648 \r\=ph 11649Partial match: \x0d 11650 \r\r\=ps 11651Partial match: \x0d\x0d 11652 \r\r\=ph 11653Partial match: \x0d\x0d 11654 \r\r\r\=ps 11655Partial match: \x0d\x0d\x0d 11656 \r\r\r\=ph 11657Partial match: \x0d\x0d\x0d 11658 \r\rx 11659 0: \x0d\x0dx 11660 \r\r\rx 11661 0: \x0d\x0d\x0dx 11662 11663/^\R?x/ 11664 \r\=ps 11665Partial match: \x0d 11666 \r\=ph 11667Partial match: \x0d 11668 x 11669 0: x 11670 \rx 11671 0: \x0dx 11672 11673/^\R+x/ 11674 \r\=ps 11675Partial match: \x0d 11676 \r\=ph 11677Partial match: \x0d 11678 \r\n\=ps 11679Partial match: \x0d\x0a 11680 \r\n\=ph 11681Partial match: \x0d\x0a 11682 \rx 11683 0: \x0dx 11684 11685/^a$/newline=crlf 11686 a\r\=ps 11687Partial match: a\x0d 11688 a\r\=ph 11689Partial match: a\x0d 11690 11691/^a$/m,newline=crlf 11692 a\r\=ps 11693Partial match: a\x0d 11694 a\r\=ph 11695Partial match: a\x0d 11696 11697/^(a$|a\r)/newline=crlf 11698 a\r\=ps 11699 0: a\x0d 11700 1: a\x0d 11701 a\r\=ph 11702Partial match: a\x0d 11703 11704/^(a$|a\r)/m,newline=crlf 11705 a\r\=ps 11706 0: a\x0d 11707 1: a\x0d 11708 a\r\=ph 11709Partial match: a\x0d 11710 11711/./newline=crlf 11712 \r\=ps 11713 0: \x0d 11714 \r\=ph 11715Partial match: \x0d 11716 11717/.{2,3}/newline=crlf 11718 \r\=ps 11719Partial match: \x0d 11720 \r\=ph 11721Partial match: \x0d 11722 \r\r\=ps 11723 0: \x0d\x0d 11724 \r\r\=ph 11725Partial match: \x0d\x0d 11726 \r\r\r\=ps 11727 0: \x0d\x0d\x0d 11728 \r\r\r\=ph 11729Partial match: \x0d\x0d\x0d 11730 11731/.{2,3}?/newline=crlf 11732 \r\=ps 11733Partial match: \x0d 11734 \r\=ph 11735Partial match: \x0d 11736 \r\r\=ps 11737 0: \x0d\x0d 11738 \r\r\=ph 11739Partial match: \x0d\x0d 11740 \r\r\r\=ps 11741 0: \x0d\x0d 11742 \r\r\r\=ph 11743 0: \x0d\x0d 11744 11745"AB(C(D))(E(F))?(?(?=\2)(?=\4))" 11746 ABCDGHI\=ovector=01 11747Matched, but too many substrings 11748 0: ABCD 11749 11750# These are all run as real matches in test 1; here we are just checking the 11751# settings of the anchored and startline bits. 11752 11753/(?>.*?a)(?<=ba)/I 11754Capture group count = 0 11755Max lookbehind = 2 11756Last code unit = 'a' 11757Subject length lower bound = 1 11758 11759/(?:.*?a)(?<=ba)/I 11760Capture group count = 0 11761Max lookbehind = 2 11762First code unit at start or follows newline 11763Last code unit = 'a' 11764Subject length lower bound = 1 11765 11766/.*?a(*PRUNE)b/I 11767Capture group count = 0 11768Last code unit = 'b' 11769Subject length lower bound = 2 11770 11771/.*?a(*PRUNE)b/Is 11772Capture group count = 0 11773Options: dotall 11774Last code unit = 'b' 11775Subject length lower bound = 2 11776 11777/^a(*PRUNE)b/Is 11778Capture group count = 0 11779Compile options: dotall 11780Overall options: anchored dotall 11781First code unit = 'a' 11782Subject length lower bound = 2 11783 11784/.*?a(*SKIP)b/I 11785Capture group count = 0 11786Last code unit = 'b' 11787Subject length lower bound = 2 11788 11789/(?>.*?a)b/Is 11790Capture group count = 0 11791Options: dotall 11792Last code unit = 'b' 11793Subject length lower bound = 2 11794 11795/(?>.*?a)b/I 11796Capture group count = 0 11797Last code unit = 'b' 11798Subject length lower bound = 2 11799 11800/(?>^a)b/Is 11801Capture group count = 0 11802Compile options: dotall 11803Overall options: anchored dotall 11804First code unit = 'a' 11805Subject length lower bound = 2 11806 11807/(?>.*?)(?<=(abcd)|(wxyz))/I 11808Capture group count = 2 11809Max lookbehind = 4 11810May match empty string 11811Subject length lower bound = 0 11812 11813/(?>.*)(?<=(abcd)|(wxyz))/I 11814Capture group count = 2 11815Max lookbehind = 4 11816May match empty string 11817Subject length lower bound = 0 11818 11819"(?>.*)foo"I 11820Capture group count = 0 11821Last code unit = 'o' 11822Subject length lower bound = 3 11823 11824"(?>.*?)foo"I 11825Capture group count = 0 11826Last code unit = 'o' 11827Subject length lower bound = 3 11828 11829/(?>^abc)/Im 11830Capture group count = 0 11831Options: multiline 11832First code unit at start or follows newline 11833Last code unit = 'c' 11834Subject length lower bound = 3 11835 11836/(?>.*abc)/Im 11837Capture group count = 0 11838Options: multiline 11839Last code unit = 'c' 11840Subject length lower bound = 3 11841 11842/(?:.*abc)/Im 11843Capture group count = 0 11844Options: multiline 11845First code unit at start or follows newline 11846Last code unit = 'c' 11847Subject length lower bound = 3 11848 11849/(?:(a)+(?C1)bb|aa(?C2)b)/ 11850 aab\=callout_capture 11851Callout 1: last capture = 1 11852 1: a 11853--->aab 11854 ^ ^ b 11855Callout 1: last capture = 1 11856 1: a 11857--->aab 11858 ^^ b 11859Callout 2: last capture = 0 11860--->aab 11861 ^ ^ b 11862 0: aab 11863 11864/(?:(a)++(?C1)bb|aa(?C2)b)/ 11865 aab\=callout_capture 11866Callout 1: last capture = 1 11867 1: a 11868--->aab 11869 ^ ^ b 11870Callout 2: last capture = 0 11871--->aab 11872 ^ ^ b 11873 0: aab 11874 11875/(?:(?>(a))(?C1)bb|aa(?C2)b)/ 11876 aab\=callout_capture 11877Callout 1: last capture = 1 11878 1: a 11879--->aab 11880 ^^ b 11881Callout 2: last capture = 0 11882--->aab 11883 ^ ^ b 11884 0: aab 11885 11886/(?:(?1)(?C1)x|ab(?C2))((a)){0}/ 11887 aab\=callout_capture 11888Callout 1: last capture = 0 11889--->aab 11890 ^^ x 11891Callout 1: last capture = 0 11892--->aab 11893 ^^ x 11894Callout 2: last capture = 0 11895--->aab 11896 ^ ^ ) 11897 0: ab 11898 11899/(?1)(?C1)((a)(?C2)){0}/ 11900 aab\=callout_capture 11901Callout 2: last capture = 2 11902 1: <unset> 11903 2: a 11904--->aab 11905 ^^ ){0} 11906Callout 1: last capture = 0 11907--->aab 11908 ^^ ( 11909 0: a 11910 11911/(?:(a)+(?C1)bb|aa(?C2)b)++/ 11912 aab\=callout_capture 11913Callout 1: last capture = 1 11914 1: a 11915--->aab 11916 ^ ^ b 11917Callout 1: last capture = 1 11918 1: a 11919--->aab 11920 ^^ b 11921Callout 2: last capture = 0 11922--->aab 11923 ^ ^ b 11924 0: aab 11925 aab\=callout_capture,ovector=1 11926Callout 1: last capture = 1 11927 1: a 11928--->aab 11929 ^ ^ b 11930Callout 1: last capture = 1 11931 1: a 11932--->aab 11933 ^^ b 11934Callout 2: last capture = 0 11935--->aab 11936 ^ ^ b 11937 0: aab 11938 11939/(ab)x|ab/ 11940 ab\=ovector=0 11941 0: ab 11942 ab\=ovector=1 11943 0: ab 11944 11945/(?<=123)(*MARK:xx)abc/mark 11946 xxxx123a\=ph 11947Partial match, mark=xx: a 11948 xxxx123a\=ps 11949Partial match, mark=xx: a 11950 11951/123\Kabc/startchar 11952 xxxx123a\=ph 11953Partial match: 123a 11954 xxxx123a\=ps 11955Partial match: 123a 11956 11957/^(?(?=a)aa|bb)/auto_callout 11958 bb 11959--->bb 11960 +0 ^ ^ 11961 +1 ^ (? 11962 +3 ^ (?= 11963 +6 ^ a 11964+11 ^ b 11965+12 ^^ b 11966+13 ^ ^ ) 11967+14 ^ ^ End of pattern 11968 0: bb 11969 11970/(?C1)^(?C2)(?(?C99)(?=(?C3)a(?C4))(?C5)a(?C6)a(?C7)|(?C8)b(?C9)b(?C10))(?C11)/ 11971 bb 11972--->bb 11973 1 ^ ^ 11974 2 ^ (? 11975 99 ^ (?= 11976 3 ^ a 11977 8 ^ b 11978 9 ^^ b 11979 10 ^ ^ ) 11980 11 ^ ^ End of pattern 11981 0: bb 11982 11983# Perl seems to have a bug with this one. 11984 11985/aaaaa(*COMMIT)(*PRUNE)b|a+c/ 11986 aaaaaac 11987 0: aaaac 11988 11989# Here are some that Perl treats differently because of the way it handles 11990# backtracking verbs. 11991 11992/(?!a(*COMMIT)b)ac|ad/ 11993 ac 11994 0: ac 11995 ad 11996 0: ad 11997 11998/^(?!a(*THEN)b|ac)../ 11999 ad 12000 0: ad 12001\= Expect no match 12002 ac 12003No match 12004 12005/^(?=a(*THEN)b|ac)/ 12006 ac 12007 0: 12008 12009/\A.*?(?:a|b(*THEN)c)/ 12010 ba 12011 0: ba 12012 12013/\A.*?(?:a|b(*THEN)c)++/ 12014 ba 12015 0: ba 12016 12017/\A.*?(?:a|b(*THEN)c|d)/ 12018 ba 12019 0: ba 12020 12021/(?:(a(*MARK:X)a+(*SKIP:X)b)){0}(?:(?1)|aac)/ 12022 aac 12023 0: aac 12024 12025/\A.*?(a|b(*THEN)c)/ 12026 ba 12027 0: ba 12028 1: a 12029 12030/^(A(*THEN)B|A(*THEN)D)/ 12031 AD 12032 0: AD 12033 1: AD 12034 12035/(?!b(*THEN)a)bn|bnn/ 12036 bnn 12037 0: bn 12038 12039/(?(?=b(*SKIP)a)bn|bnn)/ 12040 bnn 12041 0: bnn 12042 12043/(?=b(*THEN)a|)bn|bnn/ 12044 bnn 12045 0: bn 12046 12047# This test causes a segfault with Perl 5.18.0 12048 12049/^(?=(a)){0}b(?1)/ 12050 backgammon 12051 0: ba 12052 12053/(?|(?<n>f)|(?<n>b))/I,dupnames 12054Capture group count = 1 12055Named capture groups: 12056 n 1 12057Options: dupnames 12058Starting code units: b f 12059Subject length lower bound = 1 12060 12061/(?<a>abc)(?<a>z)\k<a>()/IB,dupnames 12062------------------------------------------------------------------ 12063 Bra 12064 CBra 1 12065 abc 12066 Ket 12067 CBra 2 12068 z 12069 Ket 12070 \k<a>2 12071 CBra 3 12072 Ket 12073 Ket 12074 End 12075------------------------------------------------------------------ 12076Capture group count = 3 12077Max back reference = 2 12078Named capture groups: 12079 a 1 12080 a 2 12081Options: dupnames 12082First code unit = 'a' 12083Last code unit = 'z' 12084Subject length lower bound = 5 12085 12086/a*[bcd]/B 12087------------------------------------------------------------------ 12088 Bra 12089 a*+ 12090 [b-d] 12091 Ket 12092 End 12093------------------------------------------------------------------ 12094 12095/[bcd]*a/B 12096------------------------------------------------------------------ 12097 Bra 12098 [b-d]*+ 12099 a 12100 Ket 12101 End 12102------------------------------------------------------------------ 12103 12104# A complete set of tests for auto-possessification of character types, but 12105# omitting \C because it might be disabled (it has its own tests). 12106 12107/\D+\D \D+\d \D+\S \D+\s \D+\W \D+\w \D+. \D+\R \D+\H \D+\h \D+\V \D+\v \D+\Z \D+\z \D+$/Bx 12108------------------------------------------------------------------ 12109 Bra 12110 \D+ 12111 \D 12112 \D++ 12113 \d 12114 \D+ 12115 \S 12116 \D+ 12117 \s 12118 \D+ 12119 \W 12120 \D+ 12121 \w 12122 \D+ 12123 Any 12124 \D+ 12125 \R 12126 \D+ 12127 \H 12128 \D+ 12129 \h 12130 \D+ 12131 \V 12132 \D+ 12133 \v 12134 \D+ 12135 \Z 12136 \D++ 12137 \z 12138 \D+ 12139 $ 12140 Ket 12141 End 12142------------------------------------------------------------------ 12143 12144/\d+\D \d+\d \d+\S \d+\s \d+\W \d+\w \d+. \d+\R \d+\H \d+\h \d+\V \d+\v \d+\Z \d+\z \d+$/Bx 12145------------------------------------------------------------------ 12146 Bra 12147 \d++ 12148 \D 12149 \d+ 12150 \d 12151 \d+ 12152 \S 12153 \d++ 12154 \s 12155 \d++ 12156 \W 12157 \d+ 12158 \w 12159 \d+ 12160 Any 12161 \d++ 12162 \R 12163 \d+ 12164 \H 12165 \d++ 12166 \h 12167 \d+ 12168 \V 12169 \d++ 12170 \v 12171 \d++ 12172 \Z 12173 \d++ 12174 \z 12175 \d++ 12176 $ 12177 Ket 12178 End 12179------------------------------------------------------------------ 12180 12181/\S+\D \S+\d \S+\S \S+\s \S+\W \S+\w \S+. \S+\R \S+\H \S+\h \S+\V \S+\v \S+\Z \S+\z \S+$/Bx 12182------------------------------------------------------------------ 12183 Bra 12184 \S+ 12185 \D 12186 \S+ 12187 \d 12188 \S+ 12189 \S 12190 \S++ 12191 \s 12192 \S+ 12193 \W 12194 \S+ 12195 \w 12196 \S+ 12197 Any 12198 \S++ 12199 \R 12200 \S+ 12201 \H 12202 \S++ 12203 \h 12204 \S+ 12205 \V 12206 \S++ 12207 \v 12208 \S++ 12209 \Z 12210 \S++ 12211 \z 12212 \S++ 12213 $ 12214 Ket 12215 End 12216------------------------------------------------------------------ 12217 12218/\s+\D \s+\d \s+\S \s+\s \s+\W \s+\w \s+. \s+\R \s+\H \s+\h \s+\V \s+\v \s+\Z \s+\z \s+$/Bx 12219------------------------------------------------------------------ 12220 Bra 12221 \s+ 12222 \D 12223 \s++ 12224 \d 12225 \s++ 12226 \S 12227 \s+ 12228 \s 12229 \s+ 12230 \W 12231 \s++ 12232 \w 12233 \s+ 12234 Any 12235 \s+ 12236 \R 12237 \s+ 12238 \H 12239 \s+ 12240 \h 12241 \s+ 12242 \V 12243 \s+ 12244 \v 12245 \s+ 12246 \Z 12247 \s++ 12248 \z 12249 \s+ 12250 $ 12251 Ket 12252 End 12253------------------------------------------------------------------ 12254 12255/\W+\D \W+\d \W+\S \W+\s \W+\W \W+\w \W+. \W+\R \W+\H \W+\h \W+\V \W+\v \W+\Z \W+\z \W+$/Bx 12256------------------------------------------------------------------ 12257 Bra 12258 \W+ 12259 \D 12260 \W++ 12261 \d 12262 \W+ 12263 \S 12264 \W+ 12265 \s 12266 \W+ 12267 \W 12268 \W++ 12269 \w 12270 \W+ 12271 Any 12272 \W+ 12273 \R 12274 \W+ 12275 \H 12276 \W+ 12277 \h 12278 \W+ 12279 \V 12280 \W+ 12281 \v 12282 \W+ 12283 \Z 12284 \W++ 12285 \z 12286 \W+ 12287 $ 12288 Ket 12289 End 12290------------------------------------------------------------------ 12291 12292/\w+\D \w+\d \w+\S \w+\s \w+\W \w+\w \w+. \w+\R \w+\H \w+\h \w+\V \w+\v \w+\Z \w+\z \w+$/Bx 12293------------------------------------------------------------------ 12294 Bra 12295 \w+ 12296 \D 12297 \w+ 12298 \d 12299 \w+ 12300 \S 12301 \w++ 12302 \s 12303 \w++ 12304 \W 12305 \w+ 12306 \w 12307 \w+ 12308 Any 12309 \w++ 12310 \R 12311 \w+ 12312 \H 12313 \w++ 12314 \h 12315 \w+ 12316 \V 12317 \w++ 12318 \v 12319 \w++ 12320 \Z 12321 \w++ 12322 \z 12323 \w++ 12324 $ 12325 Ket 12326 End 12327------------------------------------------------------------------ 12328 12329/\R+\D \R+\d \R+\S \R+\s \R+\W \R+\w \R+. \R+\R \R+\H \R+\h \R+\V \R+\v \R+\Z \R+\z \R+$/Bx 12330------------------------------------------------------------------ 12331 Bra 12332 \R+ 12333 \D 12334 \R++ 12335 \d 12336 \R+ 12337 \S 12338 \R++ 12339 \s 12340 \R+ 12341 \W 12342 \R++ 12343 \w 12344 \R++ 12345 Any 12346 \R+ 12347 \R 12348 \R+ 12349 \H 12350 \R++ 12351 \h 12352 \R+ 12353 \V 12354 \R+ 12355 \v 12356 \R+ 12357 \Z 12358 \R++ 12359 \z 12360 \R+ 12361 $ 12362 Ket 12363 End 12364------------------------------------------------------------------ 12365 12366/\H+\D \H+\d \H+\S \H+\s \H+\W \H+\w \H+. \H+\R \H+\H \H+\h \H+\V \H+\v \H+\Z \H+\z \H+$/Bx 12367------------------------------------------------------------------ 12368 Bra 12369 \H+ 12370 \D 12371 \H+ 12372 \d 12373 \H+ 12374 \S 12375 \H+ 12376 \s 12377 \H+ 12378 \W 12379 \H+ 12380 \w 12381 \H+ 12382 Any 12383 \H+ 12384 \R 12385 \H+ 12386 \H 12387 \H++ 12388 \h 12389 \H+ 12390 \V 12391 \H+ 12392 \v 12393 \H+ 12394 \Z 12395 \H++ 12396 \z 12397 \H+ 12398 $ 12399 Ket 12400 End 12401------------------------------------------------------------------ 12402 12403/\h+\D \h+\d \h+\S \h+\s \h+\W \h+\w \h+. \h+\R \h+\H \h+\h \h+\V \h+\v \h+\Z \h+\z \h+$/Bx 12404------------------------------------------------------------------ 12405 Bra 12406 \h+ 12407 \D 12408 \h++ 12409 \d 12410 \h++ 12411 \S 12412 \h+ 12413 \s 12414 \h+ 12415 \W 12416 \h++ 12417 \w 12418 \h+ 12419 Any 12420 \h++ 12421 \R 12422 \h++ 12423 \H 12424 \h+ 12425 \h 12426 \h+ 12427 \V 12428 \h++ 12429 \v 12430 \h+ 12431 \Z 12432 \h++ 12433 \z 12434 \h+ 12435 $ 12436 Ket 12437 End 12438------------------------------------------------------------------ 12439 12440/\V+\D \V+\d \V+\S \V+\s \V+\W \V+\w \V+. \V+\R \V+\H \V+\h \V+\V \V+\v \V+\Z \V+\z \V+$/Bx 12441------------------------------------------------------------------ 12442 Bra 12443 \V+ 12444 \D 12445 \V+ 12446 \d 12447 \V+ 12448 \S 12449 \V+ 12450 \s 12451 \V+ 12452 \W 12453 \V+ 12454 \w 12455 \V+ 12456 Any 12457 \V++ 12458 \R 12459 \V+ 12460 \H 12461 \V+ 12462 \h 12463 \V+ 12464 \V 12465 \V++ 12466 \v 12467 \V+ 12468 \Z 12469 \V++ 12470 \z 12471 \V+ 12472 $ 12473 Ket 12474 End 12475------------------------------------------------------------------ 12476 12477/\v+\D \v+\d \v+\S \v+\s \v+\W \v+\w \v+. \v+\R \v+\H \v+\h \v+\V \v+\v \v+\Z \v+\z \v+$/Bx 12478------------------------------------------------------------------ 12479 Bra 12480 \v+ 12481 \D 12482 \v++ 12483 \d 12484 \v++ 12485 \S 12486 \v+ 12487 \s 12488 \v+ 12489 \W 12490 \v++ 12491 \w 12492 \v+ 12493 Any 12494 \v+ 12495 \R 12496 \v+ 12497 \H 12498 \v++ 12499 \h 12500 \v++ 12501 \V 12502 \v+ 12503 \v 12504 \v+ 12505 \Z 12506 \v++ 12507 \z 12508 \v+ 12509 $ 12510 Ket 12511 End 12512------------------------------------------------------------------ 12513 12514/ a+\D a+\d a+\S a+\s a+\W a+\w a+. a+\R a+\H a+\h a+\V a+\v a+\Z a+\z a+$/Bx 12515------------------------------------------------------------------ 12516 Bra 12517 a+ 12518 \D 12519 a++ 12520 \d 12521 a+ 12522 \S 12523 a++ 12524 \s 12525 a++ 12526 \W 12527 a+ 12528 \w 12529 a+ 12530 Any 12531 a++ 12532 \R 12533 a+ 12534 \H 12535 a++ 12536 \h 12537 a+ 12538 \V 12539 a++ 12540 \v 12541 a++ 12542 \Z 12543 a++ 12544 \z 12545 a++ 12546 $ 12547 Ket 12548 End 12549------------------------------------------------------------------ 12550 12551/\n+\D \n+\d \n+\S \n+\s \n+\W \n+\w \n+. \n+\R \n+\H \n+\h \n+\V \n+\v \n+\Z \n+\z \n+$/Bx 12552------------------------------------------------------------------ 12553 Bra 12554 \x0a+ 12555 \D 12556 \x0a++ 12557 \d 12558 \x0a++ 12559 \S 12560 \x0a+ 12561 \s 12562 \x0a+ 12563 \W 12564 \x0a++ 12565 \w 12566 \x0a+ 12567 Any 12568 \x0a+ 12569 \R 12570 \x0a+ 12571 \H 12572 \x0a++ 12573 \h 12574 \x0a++ 12575 \V 12576 \x0a+ 12577 \v 12578 \x0a+ 12579 \Z 12580 \x0a++ 12581 \z 12582 \x0a+ 12583 $ 12584 Ket 12585 End 12586------------------------------------------------------------------ 12587 12588/ .+\D .+\d .+\S .+\s .+\W .+\w .+. .+\R .+\H .+\h .+\V .+\v .+\Z .+\z .+$/Bx 12589------------------------------------------------------------------ 12590 Bra 12591 Any+ 12592 \D 12593 Any+ 12594 \d 12595 Any+ 12596 \S 12597 Any+ 12598 \s 12599 Any+ 12600 \W 12601 Any+ 12602 \w 12603 Any+ 12604 Any 12605 Any++ 12606 \R 12607 Any+ 12608 \H 12609 Any+ 12610 \h 12611 Any+ 12612 \V 12613 Any+ 12614 \v 12615 Any+ 12616 \Z 12617 Any++ 12618 \z 12619 Any+ 12620 $ 12621 Ket 12622 End 12623------------------------------------------------------------------ 12624 12625/ .+\D .+\d .+\S .+\s .+\W .+\w .+. .+\R .+\H .+\h .+\V .+\v .+\Z .+\z .+$/Bsx 12626------------------------------------------------------------------ 12627 Bra 12628 AllAny+ 12629 \D 12630 AllAny+ 12631 \d 12632 AllAny+ 12633 \S 12634 AllAny+ 12635 \s 12636 AllAny+ 12637 \W 12638 AllAny+ 12639 \w 12640 AllAny+ 12641 AllAny 12642 AllAny+ 12643 \R 12644 AllAny+ 12645 \H 12646 AllAny+ 12647 \h 12648 AllAny+ 12649 \V 12650 AllAny+ 12651 \v 12652 AllAny+ 12653 \Z 12654 AllAny++ 12655 \z 12656 AllAny+ 12657 $ 12658 Ket 12659 End 12660------------------------------------------------------------------ 12661 12662/ \D+$ \d+$ \S+$ \s+$ \W+$ \w+$ \R+$ \H+$ \h+$ \V+$ \v+$ a+$ \n+$ .+$ .+$/Bmx 12663------------------------------------------------------------------ 12664 Bra 12665 \D+ 12666 /m $ 12667 \d++ 12668 /m $ 12669 \S++ 12670 /m $ 12671 \s+ 12672 /m $ 12673 \W+ 12674 /m $ 12675 \w++ 12676 /m $ 12677 \R+ 12678 /m $ 12679 \H+ 12680 /m $ 12681 \h+ 12682 /m $ 12683 \V+ 12684 /m $ 12685 \v+ 12686 /m $ 12687 a+ 12688 /m $ 12689 \x0a+ 12690 /m $ 12691 Any+ 12692 /m $ 12693 Any+ 12694 /m $ 12695 Ket 12696 End 12697------------------------------------------------------------------ 12698 12699/(?=a+)a(a+)++a/B 12700------------------------------------------------------------------ 12701 Bra 12702 Assert 12703 a++ 12704 Ket 12705 a 12706 CBraPos 1 12707 a+ 12708 KetRpos 12709 a 12710 Ket 12711 End 12712------------------------------------------------------------------ 12713 12714/a+(bb|cc)a+(?:bb|cc)a+(?>bb|cc)a+(?:bb|cc)+a+(aa)a+(?:bb|aa)/B 12715------------------------------------------------------------------ 12716 Bra 12717 a++ 12718 CBra 1 12719 bb 12720 Alt 12721 cc 12722 Ket 12723 a++ 12724 Bra 12725 bb 12726 Alt 12727 cc 12728 Ket 12729 a++ 12730 Once 12731 bb 12732 Alt 12733 cc 12734 Ket 12735 a++ 12736 Bra 12737 bb 12738 Alt 12739 cc 12740 KetRmax 12741 a+ 12742 CBra 2 12743 aa 12744 Ket 12745 a+ 12746 Bra 12747 bb 12748 Alt 12749 aa 12750 Ket 12751 Ket 12752 End 12753------------------------------------------------------------------ 12754 12755/a+(bb|cc)?#a+(?:bb|cc)??#a+(?:bb|cc)?+#a+(?:bb|cc)*#a+(bb|cc)?a#a+(?:aa)?/B 12756------------------------------------------------------------------ 12757 Bra 12758 a++ 12759 Brazero 12760 CBra 1 12761 bb 12762 Alt 12763 cc 12764 Ket 12765 # 12766 a++ 12767 Braminzero 12768 Bra 12769 bb 12770 Alt 12771 cc 12772 Ket 12773 # 12774 a++ 12775 Once 12776 Brazero 12777 Bra 12778 bb 12779 Alt 12780 cc 12781 Ket 12782 Ket 12783 # 12784 a++ 12785 Brazero 12786 Bra 12787 bb 12788 Alt 12789 cc 12790 KetRmax 12791 # 12792 a+ 12793 Brazero 12794 CBra 2 12795 bb 12796 Alt 12797 cc 12798 Ket 12799 a# 12800 a+ 12801 Brazero 12802 Bra 12803 aa 12804 Ket 12805 Ket 12806 End 12807------------------------------------------------------------------ 12808 12809/a+(?:bb)?a#a+(?:|||)#a+(?:|b)a#a+(?:|||)?a/B 12810------------------------------------------------------------------ 12811 Bra 12812 a+ 12813 Brazero 12814 Bra 12815 bb 12816 Ket 12817 a# 12818 a++ 12819 Bra 12820 Alt 12821 Alt 12822 Alt 12823 Ket 12824 # 12825 a+ 12826 Bra 12827 Alt 12828 b 12829 Ket 12830 a# 12831 a+ 12832 Brazero 12833 Bra 12834 Alt 12835 Alt 12836 Alt 12837 Ket 12838 a 12839 Ket 12840 End 12841------------------------------------------------------------------ 12842 12843/[ab]*/B 12844------------------------------------------------------------------ 12845 Bra 12846 [ab]*+ 12847 Ket 12848 End 12849------------------------------------------------------------------ 12850 aaaa 12851 0: aaaa 12852 12853/[ab]*?/B 12854------------------------------------------------------------------ 12855 Bra 12856 [ab]*? 12857 Ket 12858 End 12859------------------------------------------------------------------ 12860 aaaa 12861 0: 12862 12863/[ab]?/B 12864------------------------------------------------------------------ 12865 Bra 12866 [ab]?+ 12867 Ket 12868 End 12869------------------------------------------------------------------ 12870 aaaa 12871 0: a 12872 12873/[ab]??/B 12874------------------------------------------------------------------ 12875 Bra 12876 [ab]?? 12877 Ket 12878 End 12879------------------------------------------------------------------ 12880 aaaa 12881 0: 12882 12883/[ab]+/B 12884------------------------------------------------------------------ 12885 Bra 12886 [ab]++ 12887 Ket 12888 End 12889------------------------------------------------------------------ 12890 aaaa 12891 0: aaaa 12892 12893/[ab]+?/B 12894------------------------------------------------------------------ 12895 Bra 12896 [ab]+? 12897 Ket 12898 End 12899------------------------------------------------------------------ 12900 aaaa 12901 0: a 12902 12903/[ab]{2,3}/B 12904------------------------------------------------------------------ 12905 Bra 12906 [ab]{2,3}+ 12907 Ket 12908 End 12909------------------------------------------------------------------ 12910 aaaa 12911 0: aaa 12912 12913/[ab]{2,3}?/B 12914------------------------------------------------------------------ 12915 Bra 12916 [ab]{2,3}? 12917 Ket 12918 End 12919------------------------------------------------------------------ 12920 aaaa 12921 0: aa 12922 12923/[ab]{2,}/B 12924------------------------------------------------------------------ 12925 Bra 12926 [ab]{2,}+ 12927 Ket 12928 End 12929------------------------------------------------------------------ 12930 aaaa 12931 0: aaaa 12932 12933/[ab]{2,}?/B 12934------------------------------------------------------------------ 12935 Bra 12936 [ab]{2,}? 12937 Ket 12938 End 12939------------------------------------------------------------------ 12940 aaaa 12941 0: aa 12942 12943/\d+\s{0,5}=\s*\S?=\w{0,4}\W*/B 12944------------------------------------------------------------------ 12945 Bra 12946 \d++ 12947 \s{0,5}+ 12948 = 12949 \s*+ 12950 \S? 12951 = 12952 \w{0,4}+ 12953 \W*+ 12954 Ket 12955 End 12956------------------------------------------------------------------ 12957 12958/[a-d]{5,12}[e-z0-9]*#[^a-z]+[b-y]*a[2-7]?[^0-9a-z]+/B 12959------------------------------------------------------------------ 12960 Bra 12961 [a-d]{5,12}+ 12962 [0-9e-z]*+ 12963 # 12964 [\x00-`{-\xff] (neg)++ 12965 [b-y]*+ 12966 a 12967 [2-7]?+ 12968 [\x00-/:-`{-\xff] (neg)++ 12969 Ket 12970 End 12971------------------------------------------------------------------ 12972 12973/[a-z]*\s#[ \t]?\S#[a-c]*\S#[C-G]+?\d#[4-8]*\D#[4-9,]*\D#[!$]{0,5}\w#[M-Xf-l]+\W#[a-c,]?\W/B 12974------------------------------------------------------------------ 12975 Bra 12976 [a-z]*+ 12977 \s 12978 # 12979 [\x09 ]?+ 12980 \S 12981 # 12982 [a-c]* 12983 \S 12984 # 12985 [C-G]++ 12986 \d 12987 # 12988 [4-8]*+ 12989 \D 12990 # 12991 [,4-9]* 12992 \D 12993 # 12994 [!$]{0,5}+ 12995 \w 12996 # 12997 [M-Xf-l]++ 12998 \W 12999 # 13000 [,a-c]? 13001 \W 13002 Ket 13003 End 13004------------------------------------------------------------------ 13005 13006/a+(aa|bb)*c#a*(bb|cc)*a#a?(bb|cc)*d#[a-f]*(g|hh)*f/B 13007------------------------------------------------------------------ 13008 Bra 13009 a+ 13010 Brazero 13011 CBra 1 13012 aa 13013 Alt 13014 bb 13015 KetRmax 13016 c# 13017 a* 13018 Brazero 13019 CBra 2 13020 bb 13021 Alt 13022 cc 13023 KetRmax 13024 a# 13025 a?+ 13026 Brazero 13027 CBra 3 13028 bb 13029 Alt 13030 cc 13031 KetRmax 13032 d# 13033 [a-f]* 13034 Brazero 13035 CBra 4 13036 g 13037 Alt 13038 hh 13039 KetRmax 13040 f 13041 Ket 13042 End 13043------------------------------------------------------------------ 13044 13045/[a-f]*(g|hh|i)*i#[a-x]{4,}(y{0,6})*y#[a-k]+(ll|mm)+n/B 13046------------------------------------------------------------------ 13047 Bra 13048 [a-f]*+ 13049 Brazero 13050 CBra 1 13051 g 13052 Alt 13053 hh 13054 Alt 13055 i 13056 KetRmax 13057 i# 13058 [a-x]{4,} 13059 Brazero 13060 SCBra 2 13061 y{0,6} 13062 KetRmax 13063 y# 13064 [a-k]++ 13065 CBra 3 13066 ll 13067 Alt 13068 mm 13069 KetRmax 13070 n 13071 Ket 13072 End 13073------------------------------------------------------------------ 13074 13075/[a-f]*(?>gg|hh)+#[a-f]*(?>gg|hh)?#[a-f]*(?>gg|hh)*a#[a-f]*(?>gg|hh)*h/B 13076------------------------------------------------------------------ 13077 Bra 13078 [a-f]*+ 13079 Once 13080 gg 13081 Alt 13082 hh 13083 KetRmax 13084 # 13085 [a-f]*+ 13086 Brazero 13087 Once 13088 gg 13089 Alt 13090 hh 13091 Ket 13092 # 13093 [a-f]* 13094 Brazero 13095 Once 13096 gg 13097 Alt 13098 hh 13099 KetRmax 13100 a# 13101 [a-f]*+ 13102 Brazero 13103 Once 13104 gg 13105 Alt 13106 hh 13107 KetRmax 13108 h 13109 Ket 13110 End 13111------------------------------------------------------------------ 13112 13113/[a-c]*d/IB 13114------------------------------------------------------------------ 13115 Bra 13116 [a-c]*+ 13117 d 13118 Ket 13119 End 13120------------------------------------------------------------------ 13121Capture group count = 0 13122Starting code units: a b c d 13123Last code unit = 'd' 13124Subject length lower bound = 1 13125 13126/[a-c]+d/IB 13127------------------------------------------------------------------ 13128 Bra 13129 [a-c]++ 13130 d 13131 Ket 13132 End 13133------------------------------------------------------------------ 13134Capture group count = 0 13135Starting code units: a b c 13136Last code unit = 'd' 13137Subject length lower bound = 2 13138 13139/[a-c]?d/IB 13140------------------------------------------------------------------ 13141 Bra 13142 [a-c]?+ 13143 d 13144 Ket 13145 End 13146------------------------------------------------------------------ 13147Capture group count = 0 13148Starting code units: a b c d 13149Last code unit = 'd' 13150Subject length lower bound = 1 13151 13152/[a-c]{4,6}d/IB 13153------------------------------------------------------------------ 13154 Bra 13155 [a-c]{4,6}+ 13156 d 13157 Ket 13158 End 13159------------------------------------------------------------------ 13160Capture group count = 0 13161Starting code units: a b c 13162Last code unit = 'd' 13163Subject length lower bound = 5 13164 13165/[a-c]{0,6}d/IB 13166------------------------------------------------------------------ 13167 Bra 13168 [a-c]{0,6}+ 13169 d 13170 Ket 13171 End 13172------------------------------------------------------------------ 13173Capture group count = 0 13174Starting code units: a b c d 13175Last code unit = 'd' 13176Subject length lower bound = 1 13177 13178# End of special auto-possessive tests 13179 13180/^A\o{1239}B/ 13181Failed: error 164 at offset 8: non-octal character in \o{} (closing brace missing?) 13182 A\123B 13183 13184/^A\oB/ 13185Failed: error 155 at offset 4: missing opening brace after \o 13186 13187/^A\x{zz}B/ 13188Failed: error 167 at offset 5: non-hex character in \x{} (closing brace missing?) 13189 13190/^A\x{12Z/ 13191Failed: error 167 at offset 7: non-hex character in \x{} (closing brace missing?) 13192 13193/^A\x{/ 13194Failed: error 178 at offset 5: digits missing in \x{} or \o{} or \N{U+} 13195 13196/[ab]++/B,no_auto_possess 13197------------------------------------------------------------------ 13198 Bra 13199 [ab]++ 13200 Ket 13201 End 13202------------------------------------------------------------------ 13203 13204/[^ab]*+/B,no_auto_possess 13205------------------------------------------------------------------ 13206 Bra 13207 [\x00-`c-\xff] (neg)*+ 13208 Ket 13209 End 13210------------------------------------------------------------------ 13211 13212/a{4}+/B,no_auto_possess 13213------------------------------------------------------------------ 13214 Bra 13215 a{4} 13216 Ket 13217 End 13218------------------------------------------------------------------ 13219 13220/a{4}+/Bi,no_auto_possess 13221------------------------------------------------------------------ 13222 Bra 13223 /i a{4} 13224 Ket 13225 End 13226------------------------------------------------------------------ 13227 13228/[a-[:digit:]]+/ 13229Failed: error 150 at offset 4: invalid range in character class 13230 13231/[A-[:digit:]]+/ 13232Failed: error 150 at offset 4: invalid range in character class 13233 13234/[a-[.xxx.]]+/ 13235Failed: error 150 at offset 4: invalid range in character class 13236 13237/[a-[=xxx=]]+/ 13238Failed: error 150 at offset 4: invalid range in character class 13239 13240/[a-[!xxx!]]+/ 13241Failed: error 108 at offset 3: range out of order in character class 13242 13243/[A-[!xxx!]]+/ 13244 A]]] 13245 0: A]]] 13246 13247/[a-\d]+/ 13248Failed: error 150 at offset 5: invalid range in character class 13249 13250/(?<0abc>xx)/ 13251Failed: error 144 at offset 3: subpattern name must start with a non-digit 13252 13253/(?&1abc)xx(?<1abc>y)/ 13254Failed: error 144 at offset 3: subpattern name must start with a non-digit 13255 13256/(?<ab-cd>xx)/ 13257Failed: error 142 at offset 5: syntax error in subpattern name (missing terminator?) 13258 13259/(?'0abc'xx)/ 13260Failed: error 144 at offset 3: subpattern name must start with a non-digit 13261 13262/(?P<0abc>xx)/ 13263Failed: error 144 at offset 4: subpattern name must start with a non-digit 13264 13265/\k<5ghj>/ 13266Failed: error 144 at offset 3: subpattern name must start with a non-digit 13267 13268/\k'5ghj'/ 13269Failed: error 144 at offset 3: subpattern name must start with a non-digit 13270 13271/\k{2fgh}/ 13272Failed: error 144 at offset 3: subpattern name must start with a non-digit 13273 13274/(?P=8yuki)/ 13275Failed: error 144 at offset 4: subpattern name must start with a non-digit 13276 13277/\g{4df}/ 13278Failed: error 157 at offset 2: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 13279 13280/(?&1abc)xx(?<1abc>y)/ 13281Failed: error 144 at offset 3: subpattern name must start with a non-digit 13282 13283/(?P>1abc)xx(?<1abc>y)/ 13284Failed: error 144 at offset 4: subpattern name must start with a non-digit 13285 13286/\g'3gh'/ 13287Failed: error 157 at offset 2: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 13288 13289/\g<5fg>/ 13290Failed: error 157 at offset 2: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 13291 13292/(?(<4gh>)abc)/ 13293Failed: error 144 at offset 4: subpattern name must start with a non-digit 13294 13295/(?('4gh')abc)/ 13296Failed: error 144 at offset 4: subpattern name must start with a non-digit 13297 13298/(?(4gh)abc)/ 13299Failed: error 124 at offset 4: missing closing parenthesis for condition 13300 13301/(?(R&6yh)abc)/ 13302Failed: error 144 at offset 5: subpattern name must start with a non-digit 13303 13304/(((a\2)|(a*)\g<-1>))*a?/B 13305------------------------------------------------------------------ 13306 Bra 13307 Brazero 13308 SCBra 1 13309 CBra 2 13310 CBra 3 13311 a 13312 \2 13313 Ket 13314 Alt 13315 CBra 4 13316 a* 13317 Ket 13318 Recurse 13319 Ket 13320 KetRmax 13321 a?+ 13322 Ket 13323 End 13324------------------------------------------------------------------ 13325 13326# Test the ugly "start or end of word" compatibility syntax. 13327 13328/[[:<:]]red[[:>:]]/B 13329------------------------------------------------------------------ 13330 Bra 13331 \b 13332 Assert 13333 \w 13334 Ket 13335 red 13336 \b 13337 Assert back 13338 Reverse 13339 \w 13340 Ket 13341 Ket 13342 End 13343------------------------------------------------------------------ 13344 little red riding hood 13345 0: red 13346 a /red/ thing 13347 0: red 13348 red is a colour 13349 0: red 13350 put it all on red 13351 0: red 13352\= Expect no match 13353 no reduction 13354No match 13355 Alfred Winifred 13356No match 13357 13358/[a[:<:]] should give error/ 13359Failed: error 130 at offset 4: unknown POSIX class name 13360 13361/(?=ab\K)/aftertext 13362 abcd\=startchar 13363Start of matched string is beyond its end - displaying from end to start. 13364 0: ab 13365 0+ abcd 13366 13367/abcd/newline=lf,firstline 13368\= Expect no match 13369 xx\nxabcd 13370No match 13371 13372# Test stack guard external calls. 13373 13374/(((a)))/stackguard=1 13375Failed: error 133 at offset 7: parentheses are too deeply nested (stack check) 13376 13377/(((a)))/stackguard=2 13378Failed: error 133 at offset 7: parentheses are too deeply nested (stack check) 13379 13380/(((a)))/stackguard=3 13381 13382/(((((a)))))/ 13383 13384# End stack guard tests 13385 13386/^\w+(?>\s*)(?<=\w)/B 13387------------------------------------------------------------------ 13388 Bra 13389 ^ 13390 \w+ 13391 Once 13392 \s*+ 13393 Ket 13394 Assert back 13395 Reverse 13396 \w 13397 Ket 13398 Ket 13399 End 13400------------------------------------------------------------------ 13401 13402/\othing/ 13403Failed: error 155 at offset 2: missing opening brace after \o 13404 13405/\o{}/ 13406Failed: error 178 at offset 3: digits missing in \x{} or \o{} or \N{U+} 13407 13408/\o{whatever}/ 13409Failed: error 164 at offset 3: non-octal character in \o{} (closing brace missing?) 13410 13411/\xthing/ 13412 13413/\x{}/ 13414Failed: error 178 at offset 3: digits missing in \x{} or \o{} or \N{U+} 13415 13416/\x{whatever}/ 13417Failed: error 167 at offset 3: non-hex character in \x{} (closing brace missing?) 13418 13419/A\8B/ 13420Failed: error 115 at offset 2: reference to non-existent subpattern 13421 13422/A\9B/ 13423Failed: error 115 at offset 2: reference to non-existent subpattern 13424 13425# This one is here because Perl fails to match "12" for this pattern when the $ 13426# is present. 13427 13428/^(?(?=abc)\w{3}:|\d\d)$/ 13429 abc: 13430 0: abc: 13431 12 13432 0: 12 13433\= Expect no match 13434 123 13435No match 13436 xyz 13437No match 13438 13439# Perl gets this one wrong, giving "a" as the after text for ca and failing to 13440# match for cd. 13441 13442/(?(?=ab)ab)/aftertext 13443 abxxx 13444 0: ab 13445 0+ xxx 13446 ca 13447 0: 13448 0+ ca 13449 cd 13450 0: 13451 0+ cd 13452 13453# This should test both paths for processing OP_RECURSE. 13454 13455/(?(R)a+|(?R)b)/ 13456 aaaabcde 13457 0: aaaab 13458 aaaabcde\=ovector=100 13459 0: aaaab 13460 13461/a*?b*?/ 13462 ab 13463 0: 13464 13465/(*NOTEMPTY)a*?b*?/ 13466 ab 13467 0: a 13468 ba 13469 0: b 13470 cb 13471 0: b 13472 13473/(*NOTEMPTY_ATSTART)a*?b*?/aftertext 13474 ab 13475 0: a 13476 0+ b 13477 cdab 13478 0: 13479 0+ dab 13480 13481/(?(VERSION>=10.0)yes|no)/I 13482Capture group count = 0 13483Subject length lower bound = 2 13484 yesno 13485 0: yes 13486 13487/(?(VERSION>=10.04)yes|no)/ 13488 yesno 13489 0: yes 13490 13491/(?(VERSION=8)yes){3}/BI,aftertext 13492------------------------------------------------------------------ 13493 Bra 13494 Cond 13495 Cond false 13496 yes 13497 Ket 13498 Ket 13499 End 13500------------------------------------------------------------------ 13501Capture group count = 0 13502May match empty string 13503Subject length lower bound = 0 13504 yesno 13505 0: 13506 0+ yesno 13507 13508/(?(VERSION=8)yes|no){3}/I 13509Capture group count = 0 13510Subject length lower bound = 6 13511 yesnononoyes 13512 0: nonono 13513\= Expect no match 13514 yesno 13515No match 13516 13517/(?:(?<VERSION>abc)|xyz)(?(VERSION)yes|no)/I 13518Capture group count = 1 13519Max back reference = 1 13520Named capture groups: 13521 VERSION 1 13522Starting code units: a x 13523Subject length lower bound = 5 13524 abcyes 13525 0: abcyes 13526 1: abc 13527 xyzno 13528 0: xyzno 13529\= Expect no match 13530 abcno 13531No match 13532 xyzyes 13533No match 13534 13535/(?(VERSION<10)yes|no)/ 13536Failed: error 179 at offset 10: syntax error or number too big in (?(VERSION condition 13537 13538/(?(VERSION>10)yes|no)/ 13539Failed: error 179 at offset 11: syntax error or number too big in (?(VERSION condition 13540 13541/(?(VERSION>=10.0.0)yes|no)/ 13542Failed: error 179 at offset 16: syntax error or number too big in (?(VERSION condition 13543 13544/(?(VERSION=10.101)yes|no)/ 13545Failed: error 179 at offset 16: syntax error or number too big in (?(VERSION condition 13546 13547/abcd/I 13548Capture group count = 0 13549First code unit = 'a' 13550Last code unit = 'd' 13551Subject length lower bound = 4 13552 13553/abcd/I,no_start_optimize 13554Capture group count = 0 13555Options: no_start_optimize 13556 13557/(|ab)*?d/I 13558Capture group count = 1 13559Starting code units: a d 13560Last code unit = 'd' 13561Subject length lower bound = 1 13562 abd 13563 0: abd 13564 1: ab 13565 xyd 13566 0: d 13567 13568/(|ab)*?d/I,no_start_optimize 13569Capture group count = 1 13570Options: no_start_optimize 13571 abd 13572 0: abd 13573 1: ab 13574 xyd 13575 0: d 13576 13577/\k<A>*(?<A>aa)(?<A>bb)/match_unset_backref,dupnames 13578 aabb 13579 0: aabb 13580 1: aa 13581 2: bb 13582 13583/(((((a)))))/parens_nest_limit=2 13584Failed: error 119 at offset 3: parentheses are too deeply nested 13585 13586/abc/replace=XYZ 13587 123123 13588 0: 123123 13589 123abc123 13590 1: 123XYZ123 13591 123abc123abc123 13592 1: 123XYZ123abc123 13593 123123\=zero_terminate 13594 0: 123123 13595 123abc123\=zero_terminate 13596 1: 123XYZ123 13597 123abc123abc123\=zero_terminate 13598 1: 123XYZ123abc123 13599 13600/abc/g,replace=XYZ 13601 123abc123 13602 1: 123XYZ123 13603 123abc123abc123 13604 2: 123XYZ123XYZ123 13605 13606/abc/replace=X$$Z 13607 123abc123 13608 1: 123X$Z123 13609 13610/abc/g,replace=X$$Z 13611 123abc123abc123 13612 2: 123X$Z123X$Z123 13613 13614/a(b)c(d)e/replace=X$1Y${2}Z 13615 "abcde" 13616 1: "XbYdZ" 13617 13618/a(b)c(d)e/replace=X$1Y${2}Z,global 13619 "abcde-abcde" 13620 2: "XbYdZ-XbYdZ" 13621 13622/a(?<ONE>b)c(?<TWO>d)e/replace=X$ONE+${TWO}Z 13623 "abcde" 13624 1: "Xb+dZ" 13625 13626/a(?<ONE>b)c(?<TWO>d)e/g,replace=X$ONE+${TWO}Z 13627 "abcde-abcde-" 13628 2: "Xb+dZ-Xb+dZ-" 13629 13630/abc/replace=a$++ 13631 123abc 13632Failed: error -35 at offset 2 in replacement: invalid replacement string 13633 13634/abc/replace=a$bad 13635 123abc 13636Failed: error -49 at offset 5 in replacement: unknown substring 13637 13638/abc/replace=a${A234567890123456789_123456789012}z 13639 123abc 13640Failed: error -49 at offset 36 in replacement: unknown substring 13641 13642/abc/replace=a${A23456789012345678901234567890123}z 13643 123abc 13644Failed: error -35 at offset 35 in replacement: invalid replacement string 13645 13646/abc/replace=a${bcd 13647 123abc 13648Failed: error -58 at offset 6 in replacement: expected closing curly bracket in replacement string 13649 13650/abc/replace=a${b+d}z 13651 123abc 13652Failed: error -58 at offset 4 in replacement: expected closing curly bracket in replacement string 13653 13654/abc/replace=[10]XYZ 13655 123abc123 13656 1: 123XYZ123 13657 13658/abc/replace=[9]XYZ 13659 123abc123 13660Failed: error -48: no more memory 13661 13662/abc/replace=xyz 13663 1abc2\=partial_hard 13664Failed: error -34: bad option value 13665 13666/abc/replace=xyz 13667 123abc456 13668 1: 123xyz456 13669 123abc456\=replace=pqr 13670 1: 123pqr456 13671 123abc456abc789 13672 1: 123xyz456abc789 13673 123abc456abc789\=g 13674 2: 123xyz456xyz789 13675 13676/(?<=abc)(|def)/g,replace=<$0> 13677 123abcxyzabcdef789abcpqr 13678 4: 123abc<>xyzabc<><def>789abc<>pqr 13679 13680/./replace=$0 13681 a 13682 1: a 13683 13684/(.)(.)/replace=$2+$1 13685 abc 13686 1: b+ac 13687 13688/(?<A>.)(?<B>.)/replace=$B+$A 13689 abc 13690 1: b+ac 13691 13692/(.)(.)/g,replace=$2$1 13693 abcdefgh 13694 4: badcfehg 13695 13696/(*:pear)apple|(*:orange)lemon|(*:strawberry)blackberry/g,replace=${*MARK} 13697 apple lemon blackberry 13698 3: pear orange strawberry 13699 apple strudel 13700 1: pear strudel 13701 fruitless 13702 0: fruitless 13703 13704/(*:pear)apple|(*:orange)lemon|(*:strawberry)blackberry/replace=${*MARK} sauce, 13705 apple lemon blackberry 13706 1: pear sauce lemon blackberry 13707 13708/(*:pear)apple|(*:orange)lemon|(*:strawberry)blackberry/g,replace=<$*MARK> 13709 apple lemon blackberry 13710 3: <pear> <orange> <strawberry> 13711 apple strudel 13712 1: <pear> strudel 13713 fruitless 13714 0: fruitless 13715 13716/(*:pear)apple/g,replace=${*MARKING} 13717 apple lemon blackberry 13718Failed: error -35 at offset 11 in replacement: invalid replacement string 13719 13720/(*:pear)apple/g,replace=${*MARK-time 13721 apple lemon blackberry 13722Failed: error -58 at offset 7 in replacement: expected closing curly bracket in replacement string 13723 13724/(*:pear)apple/g,replace=${*mark} 13725 apple lemon blackberry 13726Failed: error -35 at offset 8 in replacement: invalid replacement string 13727 13728/(*:pear)apple|(*:orange)lemon|(*:strawberry)blackberry/g,replace=<$*MARKET> 13729 apple lemon blackberry 13730Failed: error -35 at offset 9 in replacement: invalid replacement string 13731 13732/(*:pear)apple|(*:orange)lemon|(*:strawberry)blackberry/g,replace=[22]${*MARK} 13733 apple lemon blackberry 13734Failed: error -48: no more memory 13735 apple lemon blackberry\=substitute_overflow_length 13736Failed: error -48: no more memory: 23 code units are needed 13737 13738/(*:pear)apple|(*:orange)lemon|(*:strawberry)blackberry/g,replace=[23]${*MARK} 13739 apple lemon blackberry 13740 3: pear orange strawberry 13741 13742/abc/ 13743 123abc123\=replace=[9]XYZ 13744Failed: error -48: no more memory 13745 123abc123\=substitute_overflow_length,replace=[9]XYZ 13746Failed: error -48: no more memory: 10 code units are needed 13747 123abc123\=substitute_overflow_length,replace=[6]XYZ 13748Failed: error -48: no more memory: 10 code units are needed 13749 123abc123\=substitute_overflow_length,replace=[1]XYZ 13750Failed: error -48: no more memory: 10 code units are needed 13751 123abc123\=substitute_overflow_length,replace=[0]XYZ 13752Failed: error -48: no more memory: 10 code units are needed 13753 13754/a(b)c/ 13755 123abc123\=replace=[9]x$1z 13756Failed: error -48: no more memory 13757 123abc123\=substitute_overflow_length,replace=[9]x$1z 13758Failed: error -48: no more memory: 10 code units are needed 13759 123abc123\=substitute_overflow_length,replace=[6]x$1z 13760Failed: error -48: no more memory: 10 code units are needed 13761 123abc123\=substitute_overflow_length,replace=[1]x$1z 13762Failed: error -48: no more memory: 10 code units are needed 13763 123abc123\=substitute_overflow_length,replace=[0]x$1z 13764Failed: error -48: no more memory: 10 code units are needed 13765 13766"((?=(?(?=(?(?=(?(?=()))))))))" 13767 a 13768 0: 13769 1: 13770 2: 13771 13772"(?(?=)==)(((((((((?=)))))))))" 13773\= Expect no match 13774 a 13775No match 13776 13777/(a)(b)|(c)/ 13778 XcX\=ovector=2,get=1,get=2,get=3,get=4,getall 13779Matched, but too many substrings 13780 0: c 13781 1: <unset> 13782Get substring 1 failed (-55): requested value is not set 13783Get substring 2 failed (-54): requested value is not available 13784Get substring 3 failed (-54): requested value is not available 13785Get substring 4 failed (-49): unknown substring 13786 0L c 13787 1L 13788 13789/x(?=ab\K)/ 13790 xab\=get=0 13791Start of matched string is beyond its end - displaying from end to start. 13792 0: ab 13793 0G (0) 13794 xab\=copy=0 13795Start of matched string is beyond its end - displaying from end to start. 13796 0: ab 13797 0C (0) 13798 xab\=getall 13799Start of matched string is beyond its end - displaying from end to start. 13800 0: ab 13801 0L 13802 13803/(?<A>a)|(?<A>b)/dupnames 13804 a\=ovector=1,copy=A,get=A,get=2 13805Matched, but too many substrings 13806 0: a 13807Copy substring 'A' failed (-54): requested value is not available 13808Get substring 2 failed (-54): requested value is not available 13809Get substring 'A' failed (-54): requested value is not available 13810 a\=ovector=2,copy=A,get=A,get=2 13811 0: a 13812 1: a 13813 C a (1) A (non-unique) 13814Get substring 2 failed (-54): requested value is not available 13815 G a (1) A (non-unique) 13816 b\=ovector=2,copy=A,get=A,get=2 13817Matched, but too many substrings 13818 0: b 13819 1: <unset> 13820Copy substring 'A' failed (-55): requested value is not set 13821Get substring 2 failed (-54): requested value is not available 13822Get substring 'A' failed (-55): requested value is not set 13823 13824/a(b)c(d)/ 13825 abc\=ph,copy=0,copy=1,getall 13826Partial match: abc 13827 0C abc (3) 13828Copy substring 1 failed (-2): partial match 13829get substring list failed (-2): partial match 13830 13831/^abc/info 13832Capture group count = 0 13833Compile options: <none> 13834Overall options: anchored 13835First code unit = 'a' 13836Subject length lower bound = 3 13837 13838/^abc/info,no_dotstar_anchor 13839Capture group count = 0 13840Compile options: no_dotstar_anchor 13841Overall options: anchored no_dotstar_anchor 13842First code unit = 'a' 13843Subject length lower bound = 3 13844 13845/.*\d/info,auto_callout 13846Capture group count = 0 13847Options: auto_callout 13848First code unit at start or follows newline 13849Subject length lower bound = 1 13850\= Expect no match 13851 aaa 13852--->aaa 13853 +0 ^ .* 13854 +2 ^ ^ \d 13855 +2 ^ ^ \d 13856 +2 ^^ \d 13857 +2 ^ \d 13858No match 13859 13860/.*\d/info,no_dotstar_anchor,auto_callout 13861Capture group count = 0 13862Options: auto_callout no_dotstar_anchor 13863Subject length lower bound = 1 13864\= Expect no match 13865 aaa 13866--->aaa 13867 +0 ^ .* 13868 +2 ^ ^ \d 13869 +2 ^ ^ \d 13870 +2 ^^ \d 13871 +2 ^ \d 13872 +0 ^ .* 13873 +2 ^ ^ \d 13874 +2 ^^ \d 13875 +2 ^ \d 13876 +0 ^ .* 13877 +2 ^^ \d 13878 +2 ^ \d 13879No match 13880 13881/.*\d/dotall,info 13882Capture group count = 0 13883Compile options: dotall 13884Overall options: anchored dotall 13885Subject length lower bound = 1 13886 13887/.*\d/dotall,no_dotstar_anchor,info 13888Capture group count = 0 13889Options: dotall no_dotstar_anchor 13890Subject length lower bound = 1 13891 13892/(*NO_DOTSTAR_ANCHOR)(?s).*\d/info 13893Capture group count = 0 13894Compile options: <none> 13895Overall options: no_dotstar_anchor 13896Subject length lower bound = 1 13897 13898'^(?:(a)|b)(?(1)A|B)' 13899 aA123\=ovector=1 13900Matched, but too many substrings 13901 0: aA 13902 aA123\=ovector=2 13903 0: aA 13904 1: a 13905 13906'^(?:(?<AA>a)|b)(?(<AA>)A|B)' 13907 aA123\=ovector=1 13908Matched, but too many substrings 13909 0: aA 13910 aA123\=ovector=2 13911 0: aA 13912 1: a 13913 13914'^(?<AA>)(?:(?<AA>a)|b)(?(<AA>)A|B)'dupnames 13915 aA123\=ovector=1 13916Matched, but too many substrings 13917 0: aA 13918 aA123\=ovector=2 13919Matched, but too many substrings 13920 0: aA 13921 1: 13922 aA123\=ovector=3 13923 0: aA 13924 1: 13925 2: a 13926 13927'^(?:(?<AA>X)|)(?:(?<AA>a)|b)\k{AA}'dupnames 13928 aa123\=ovector=1 13929Matched, but too many substrings 13930 0: aa 13931 aa123\=ovector=2 13932Matched, but too many substrings 13933 0: aa 13934 1: <unset> 13935 aa123\=ovector=3 13936 0: aa 13937 1: <unset> 13938 2: a 13939 13940/(?<N111>(?J)(?<N111>1(111111)11|)1|1|)(?(<N111>)1)/ 13941 13942/(?<N>(?J)(?<N>))(?-J)\k<N>/ 13943 13944# Quantifiers are not allowed on condition assertions, but are otherwise 13945# OK in conditions. 13946 13947/(?(?=0)?)+/ 13948Failed: error 109 at offset 7: quantifier does not follow a repeatable item 13949 13950/(?(?=0)(?=00)?00765)/ 13951 00765 13952 0: 00765 13953 13954/(?(?=0)(?=00)?00765|(?!3).56)/ 13955 00765 13956 0: 00765 13957 456 13958 0: 456 13959\= Expect no match 13960 356 13961No match 13962 13963'^(a)*+(\w)' 13964 g 13965 0: g 13966 1: <unset> 13967 2: g 13968 g\=ovector=1 13969Matched, but too many substrings 13970 0: g 13971 13972'^(?:a)*+(\w)' 13973 g 13974 0: g 13975 1: g 13976 g\=ovector=1 13977Matched, but too many substrings 13978 0: g 13979 13980# These two pattern showeds up compile-time bugs 13981 13982"((?2){0,1999}())?" 13983 13984/((?+1)(\1))/B 13985------------------------------------------------------------------ 13986 Bra 13987 CBra 1 13988 Recurse 13989 CBra 2 13990 \1 13991 Ket 13992 Ket 13993 Ket 13994 End 13995------------------------------------------------------------------ 13996 13997# Callouts with string arguments 13998 13999/a(?C"/ 14000Failed: error 181 at offset 4: missing terminating delimiter for callout with string argument 14001 14002/a(?C"a/ 14003Failed: error 181 at offset 4: missing terminating delimiter for callout with string argument 14004 14005/a(?C"a"/ 14006Failed: error 139 at offset 7: closing parenthesis for (?C expected 14007 14008/a(?C"a"bcde(?C"b")xyz/ 14009Failed: error 139 at offset 7: closing parenthesis for (?C expected 14010 14011/a(?C"a)b""c")/B 14012------------------------------------------------------------------ 14013 Bra 14014 a 14015 CalloutStr "a)b"c" 5 13 0 14016 Ket 14017 End 14018------------------------------------------------------------------ 14019 14020/ab(?C" any text with spaces ")cde/B 14021------------------------------------------------------------------ 14022 Bra 14023 ab 14024 CalloutStr " any text with spaces " 6 30 1 14025 cde 14026 Ket 14027 End 14028------------------------------------------------------------------ 14029 abcde 14030Callout (6): " any text with spaces " 14031--->abcde 14032 ^ ^ c 14033 0: abcde 14034 12abcde 14035Callout (6): " any text with spaces " 14036--->12abcde 14037 ^ ^ c 14038 0: abcde 14039 14040/^a(b)c(?C1)def/ 14041 abcdef 14042--->abcdef 14043 1 ^ ^ d 14044 0: abcdef 14045 1: b 14046 14047/^a(b)c(?C"AB")def/ 14048 abcdef 14049Callout (10): "AB" 14050--->abcdef 14051 ^ ^ d 14052 0: abcdef 14053 1: b 14054 14055/^a(b)c(?C1)def/ 14056 abcdef\=callout_capture 14057Callout 1: last capture = 1 14058 1: b 14059--->abcdef 14060 ^ ^ d 14061 0: abcdef 14062 1: b 14063 14064/^a(b)c(?C{AB})def/B 14065------------------------------------------------------------------ 14066 Bra 14067 ^ 14068 a 14069 CBra 1 14070 b 14071 Ket 14072 c 14073 CalloutStr {AB} 10 14 1 14074 def 14075 Ket 14076 End 14077------------------------------------------------------------------ 14078 abcdef\=callout_capture 14079Callout (10): {AB} last capture = 1 14080 1: b 14081--->abcdef 14082 ^ ^ d 14083 0: abcdef 14084 1: b 14085 14086/(?C`a``b`)(?C'a''b')(?C"a""b")(?C^a^^b^)(?C%a%%b%)(?C#a##b#)(?C$a$$b$)(?C{a}}b})/B,callout_info 14087------------------------------------------------------------------ 14088 Bra 14089 CalloutStr `a`b` 4 10 0 14090 CalloutStr 'a'b' 14 20 0 14091 CalloutStr "a"b" 24 30 0 14092 CalloutStr ^a^b^ 34 40 0 14093 CalloutStr %a%b% 44 50 0 14094 CalloutStr #a#b# 54 60 0 14095 CalloutStr $a$b$ 64 70 0 14096 CalloutStr {a}b} 74 80 0 14097 Ket 14098 End 14099------------------------------------------------------------------ 14100Callout `a`b` ( 14101Callout 'a'b' ( 14102Callout "a"b" ( 14103Callout ^a^b^ ( 14104Callout %a%b% ( 14105Callout #a#b# ( 14106Callout $a$b$ ( 14107Callout {a}b} 14108 14109/(?:a(?C`code`)){3}/B 14110------------------------------------------------------------------ 14111 Bra 14112 Bra 14113 a 14114 CalloutStr `code` 8 14 4 14115 Ket 14116 Bra 14117 a 14118 CalloutStr `code` 8 14 4 14119 Ket 14120 Bra 14121 a 14122 CalloutStr `code` 8 14 4 14123 Ket 14124 Ket 14125 End 14126------------------------------------------------------------------ 14127 14128/^(?(?C25)(?=abc)abcd|xyz)/B,callout_info 14129------------------------------------------------------------------ 14130 Bra 14131 ^ 14132 Cond 14133 Callout 25 9 3 14134 Assert 14135 abc 14136 Ket 14137 abcd 14138 Alt 14139 xyz 14140 Ket 14141 Ket 14142 End 14143------------------------------------------------------------------ 14144Callout 25 (?= 14145 abcdefg 14146--->abcdefg 14147 25 ^ (?= 14148 0: abcd 14149 xyz123 14150--->xyz123 14151 25 ^ (?= 14152 0: xyz 14153 14154/^(?(?C$abc$)(?=abc)abcd|xyz)/B 14155------------------------------------------------------------------ 14156 Bra 14157 ^ 14158 Cond 14159 CalloutStr $abc$ 7 12 3 14160 Assert 14161 abc 14162 Ket 14163 abcd 14164 Alt 14165 xyz 14166 Ket 14167 Ket 14168 End 14169------------------------------------------------------------------ 14170 abcdefg 14171Callout (7): $abc$ 14172--->abcdefg 14173 ^ (?= 14174 0: abcd 14175 xyz123 14176Callout (7): $abc$ 14177--->xyz123 14178 ^ (?= 14179 0: xyz 14180 14181/^ab(?C'first')cd(?C"second")ef/ 14182 abcdefg 14183Callout (7): 'first' 14184--->abcdefg 14185 ^ ^ c 14186Callout (20): "second" 14187--->abcdefg 14188 ^ ^ e 14189 0: abcdef 14190 14191/(?:a(?C`code`)){3}X/ 14192 aaaXY 14193Callout (8): `code` 14194--->aaaXY 14195 ^^ ){3} 14196Callout (8): `code` 14197--->aaaXY 14198 ^ ^ ){3} 14199Callout (8): `code` 14200--->aaaXY 14201 ^ ^ ){3} 14202 0: aaaX 14203 14204# Binary zero in callout string 14205# a ( ? C ' x z ' ) b 14206/ 61 28 3f 43 27 78 00 7a 27 29 62/hex,callout_info 14207Callout 'x\x00z' b 14208 abcdefgh 14209Callout (5): 'x\x00z' 14210--->abcdefgh 14211 ^^ b 14212 0: ab 14213 14214/(?(?!)^)/ 14215 14216/(?(?!)a|b)/ 14217 bbb 14218 0: b 14219\= Expect no match 14220 aaa 14221No match 14222 14223# JIT gives a different error message for the infinite recursion 14224 14225"(*NO_JIT)((?2)+)((?1)){" 14226 abcd{ 14227Failed: error -52: nested recursion at the same subject position 14228 14229# Perl fails to diagnose the absence of an assertion 14230 14231"(?(?<E>.*!.*)?)" 14232Failed: error 128 at offset 2: assertion expected after (?( or (?(?C) 14233 14234"X((?2)()*+){2}+"B 14235------------------------------------------------------------------ 14236 Bra 14237 X 14238 Once 14239 CBra 1 14240 Recurse 14241 Braposzero 14242 SCBraPos 2 14243 KetRpos 14244 Ket 14245 CBra 1 14246 Recurse 14247 Braposzero 14248 SCBraPos 2 14249 KetRpos 14250 Ket 14251 Ket 14252 Ket 14253 End 14254------------------------------------------------------------------ 14255 14256"X((?2)()*+){2}"B 14257------------------------------------------------------------------ 14258 Bra 14259 X 14260 CBra 1 14261 Recurse 14262 Braposzero 14263 SCBraPos 2 14264 KetRpos 14265 Ket 14266 CBra 1 14267 Recurse 14268 Braposzero 14269 SCBraPos 2 14270 KetRpos 14271 Ket 14272 Ket 14273 End 14274------------------------------------------------------------------ 14275 14276/(?<=\bABQ(3(?-7)))/ 14277Failed: error 115 at offset 15: reference to non-existent subpattern 14278 14279/(?<=\bABQ(3(?+7)))/ 14280Failed: error 115 at offset 15: reference to non-existent subpattern 14281 14282";(?<=()((?3))((?2)))" 14283Failed: error 125 at offset 1: lookbehind assertion is not fixed length 14284 14285# Perl loops on this (PCRE2 used to!) 14286 14287/(?<=\Ka)/g,aftertext 14288 aaaaa 14289 0: a 14290 0+ aaaa 14291 0: a 14292 0+ aaa 14293 0: a 14294 0+ aa 14295 0: a 14296 0+ a 14297 0: a 14298 0+ 14299 14300/(?<=\Ka)/altglobal,aftertext 14301 aaaaa 14302 0: a 14303 0+ aaaa 14304 0: a 14305 0+ aaa 14306 0: a 14307 0+ aa 14308 0: a 14309 0+ a 14310 0: a 14311 0+ 14312 14313/((?2){73}(?2))((?1))/info 14314Capture group count = 2 14315May match empty string 14316Subject length lower bound = 0 14317 14318/abc/ 14319\= Expect no match 14320 \[9x!xxx(]{9999} 14321No match 14322 14323/(abc)*/ 14324 \[abc]{5} 14325 0: abcabcabcabcabc 14326 1: abc 14327 14328/^/gm 14329 \n\n\n 14330 0: 14331 0: 14332 0: 14333 14334/^/gm,alt_circumflex 14335 \n\n\n 14336 0: 14337 0: 14338 0: 14339 0: 14340 14341/((((((((x))))))))\81/ 14342Failed: error 115 at offset 19: reference to non-existent subpattern 14343 xx1 14344 14345/((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((x))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))\80/ 14346 xx 14347Matched, but too many substrings 14348 0: xx 14349 1: x 14350 2: x 14351 3: x 14352 4: x 14353 5: x 14354 6: x 14355 7: x 14356 8: x 14357 9: x 1435810: x 1435911: x 1436012: x 1436113: x 1436214: x 14363 14364/\80/ 14365Failed: error 115 at offset 2: reference to non-existent subpattern 14366 14367/A\8B\9C/ 14368Failed: error 115 at offset 2: reference to non-existent subpattern 14369 A8B9C 14370 14371/(?x:((?'a')) # comment (with parentheses) and | vertical 14372(?-x:#not a comment (?'b')) # this is a comment () 14373(?'c')) # not a comment (?'d')/info 14374Capture group count = 5 14375Named capture groups: 14376 a 2 14377 b 3 14378 c 4 14379 d 5 14380First code unit = '#' 14381Last code unit = ' ' 14382Subject length lower bound = 32 14383 14384/(?|(?'a')(2)(?'b')|(?'a')(?'a')(3))/I,dupnames 14385Capture group count = 3 14386Named capture groups: 14387 a 1 14388 a 2 14389 b 3 14390Options: dupnames 14391Starting code units: 2 3 14392Subject length lower bound = 1 14393 A23B 14394 0: 2 14395 1: 14396 2: 2 14397 3: 14398 B32A 14399 0: 3 14400 1: 14401 2: 14402 3: 3 14403 14404# These are some patterns that used to cause buffer overflows or other errors 14405# while compiling. 14406 14407/.((?2)(?R)|\1|$)()/B 14408------------------------------------------------------------------ 14409 Bra 14410 Any 14411 CBra 1 14412 Recurse 14413 Recurse 14414 Alt 14415 \1 14416 Alt 14417 $ 14418 Ket 14419 CBra 2 14420 Ket 14421 Ket 14422 End 14423------------------------------------------------------------------ 14424 14425/.((?3)(?R)()(?2)|\1|$)()/B 14426------------------------------------------------------------------ 14427 Bra 14428 Any 14429 CBra 1 14430 Recurse 14431 Recurse 14432 CBra 2 14433 Ket 14434 Recurse 14435 Alt 14436 \1 14437 Alt 14438 $ 14439 Ket 14440 CBra 3 14441 Ket 14442 Ket 14443 End 14444------------------------------------------------------------------ 14445 14446/(\9*+(?2);\3++()2|)++{/ 14447Failed: error 115 at offset 2: reference to non-existent subpattern 14448 14449/\V\x85\9*+((?2)\3++()2)*:2/ 14450Failed: error 115 at offset 7: reference to non-existent subpattern 14451 14452/(((?(R)){0,2}) (?'x'((?'R')((?'R')))))/dupnames 14453 14454/(((?(X)){0,2}) (?'x'((?'X')((?'X')))))/dupnames 14455 14456/(((?(R)){0,2}) (?'x'((?'X')((?'R')))))/ 14457 14458"(?J)(?'d'(?'d'\g{d}))" 14459 14460"(?=!((?2)(?))({8(?<=(?1){29}8bbbb\x16\xd\xc6^($(\xa9H4){4}h}?1)B))\x15')" 14461Failed: error 125 at offset 16: lookbehind assertion is not fixed length 14462 14463/A(?'')Z/ 14464Failed: error 162 at offset 4: subpattern name expected 14465 14466"(?J:(?|(?'R')(\k'R')|((?'R'))))" 14467 14468/(?<=|(\,\$(?73591620449005828816)\xa8.{7}){6}\x09)/ 14469Failed: error 161 at offset 17: subpattern number is too big 14470 14471/^(?:(?(1)x|)+)+$()/B 14472------------------------------------------------------------------ 14473 Bra 14474 ^ 14475 SBra 14476 SCond 14477 1 Cond ref 14478 x 14479 Alt 14480 KetRmax 14481 KetRmax 14482 $ 14483 CBra 1 14484 Ket 14485 Ket 14486 End 14487------------------------------------------------------------------ 14488 14489/[[:>:]](?<)/ 14490Failed: error 162 at offset 10: subpattern name expected 14491 14492/((?x)(*:0))#(?'/ 14493Failed: error 162 at offset 15: subpattern name expected 14494 14495/(?C$[$)(?<]/ 14496Failed: error 162 at offset 10: subpattern name expected 14497 14498/(?C$)$)(?<]/ 14499Failed: error 162 at offset 10: subpattern name expected 14500 14501/(?(R))*+/B 14502------------------------------------------------------------------ 14503 Bra 14504 Braposzero 14505 SBraPos 14506 SCond 14507 Cond recurse any 14508 Ket 14509 KetRpos 14510 Ket 14511 End 14512------------------------------------------------------------------ 14513 abcd 14514 0: 14515 14516/((?x)(?#))#(?'/ 14517Failed: error 162 at offset 14: subpattern name expected 14518 14519/((?x)(?#))#(?'abc')/I 14520Capture group count = 2 14521Named capture groups: 14522 abc 2 14523First code unit = '#' 14524Subject length lower bound = 1 14525 14526/[[:\\](?<[::]/ 14527Failed: error 162 at offset 9: subpattern name expected 14528 14529/[[:\\](?'abc')[a:]/I 14530Capture group count = 1 14531Named capture groups: 14532 abc 1 14533Starting code units: : [ \ 14534Subject length lower bound = 2 14535 14536"[[[.\xe8Nq\xffq\xff\xe0\x2|||::Nq\xffq\xff\xe0\x6\x2|||::[[[:[::::::[[[[[::::::::[:[[[:[:::[[[[[[[[[[[[:::::::::::::::::[[.\xe8Nq\xffq\xff\xe0\x2|||::Nq\xffq\xff\xe0\x6\x2|||::[[[:[::::::[[[[[::::::::[:[[[:[:::[[[[[[[[[[[[[[:::E[[[:[:[[:[:::[[:::E[[[:[:[[:'[:::::E[[[:[::::::[[[:[[[[[[[::E[[[:[::::::[[[:[[[[[[[[:[[::[::::[[:::::::[[:[[[[[[[:[[::[:[[:[~" 14537Failed: error 106 at offset 353: missing terminating ] for character class 14538 14539/()(?(R)0)*+/B 14540------------------------------------------------------------------ 14541 Bra 14542 CBra 1 14543 Ket 14544 Braposzero 14545 SBraPos 14546 SCond 14547 Cond recurse any 14548 0 14549 Ket 14550 KetRpos 14551 Ket 14552 End 14553------------------------------------------------------------------ 14554 14555/(?R-:(?</ 14556Failed: error 158 at offset 3: (?R (recursive pattern call) must be followed by a closing parenthesis 14557 14558/(?R-:(?<)/ 14559Failed: error 158 at offset 3: (?R (recursive pattern call) must be followed by a closing parenthesis 14560 14561/(?(?C{\Q})(?!(?'/ 14562Failed: error 162 at offset 16: subpattern name expected 14563 14564/(?(?C{\Q})(?!(?'abc')))/I 14565Capture group count = 1 14566Named capture groups: 14567 abc 1 14568May match empty string 14569Subject length lower bound = 0 14570 14571/(?1){3918}(((((0(\k'R'))))(?J)(?'R'(?'R'\3){99})))/I 14572Capture group count = 8 14573Max back reference = 8 14574Named capture groups: 14575 R 7 14576 R 8 14577Duplicate name status changes 14578Last code unit = '0' 14579Subject length lower bound = 65535 14580 14581/(?|(aaa)|(b))\g{1}/I 14582Capture group count = 1 14583Max back reference = 1 14584Starting code units: a b 14585Subject length lower bound = 1 14586 14587/(?|(aaa)|(b))(?1)/I 14588Capture group count = 1 14589Starting code units: a b 14590Subject length lower bound = 4 14591 14592/(?|(aaa)|(b))/I 14593Capture group count = 1 14594Starting code units: a b 14595Subject length lower bound = 1 14596 14597/(?|(?'a'aaa)|(?'a'b))\k'a'/I 14598Capture group count = 1 14599Max back reference = 1 14600Named capture groups: 14601 a 1 14602Starting code units: a b 14603Subject length lower bound = 1 14604 14605/(?|(?'a'aaa)|(?'a'b))(?'a'cccc)\k'a'/I,dupnames 14606Capture group count = 2 14607Max back reference = 2 14608Named capture groups: 14609 a 1 14610 a 2 14611Options: dupnames 14612Starting code units: a b 14613Last code unit = 'c' 14614Subject length lower bound = 5 14615 14616/ab{3cd/ 14617 ab{3cd 14618 0: ab{3cd 14619 14620/ab{3,cd/ 14621 ab{3,cd 14622 0: ab{3,cd 14623 14624/ab{3,4a}cd/ 14625 ab{3,4a}cd 14626 0: ab{3,4a}cd 14627 14628/{4,5a}bc/ 14629 {4,5a}bc 14630 0: {4,5a}bc 14631 14632/\x0{ab}/ 14633 \0{ab} 14634 0: \x00{ab} 14635 14636/^(a(b))\1\g1\g{1}\g-1\g{-1}\g{-02}Z/ 14637 ababababbbabZXXXX 14638 0: ababababbbabZ 14639 1: ab 14640 2: b 14641 14642/.*?a(*PRUNE)b/ 14643 aab 14644 0: ab 14645 14646/.*?a(*PRUNE)b/s 14647 aab 14648 0: ab 14649 14650/^a(*PRUNE)b/s 14651\= Expect no match 14652 aab 14653No match 14654 14655/.*?a(*SKIP)b/ 14656 aab 14657 0: ab 14658 14659/(?(8000000000/ 14660Failed: error 161 at offset 8: subpattern number is too big 14661 14662/((?(R8000000000)))/ 14663Failed: error 161 at offset 9: subpattern number is too big 14664 14665/0(?0)|(1)(*THEN)(*SKIP:0)(*FAIL)/ 14666\= Expect no match 14667 01 14668No match 14669 14670/(?(1)()\983040\2)/ 14671Failed: error 161 at offset 14: subpattern number is too big 14672 14673/(*LIMIT_MATCH=)abc/ 14674Failed: error 160 at offset 14: (*VERB) not recognized or malformed 14675 14676/(*CRLF)(*LIMIT_MATCH=)abc/ 14677Failed: error 160 at offset 21: (*VERB) not recognized or malformed 14678 14679/(?:ab)?(?:ab)(?:ab)/ 14680 abab 14681 0: abab 14682 ababab 14683 0: ababab 14684\= Expect no match 14685 aba 14686No match 14687 14688/((*MARK:A))++a(*SKIP:B)b/ 14689\= Expect no match 14690 aacb 14691No match 14692 14693/(*MARK:a\zb)z/alt_verbnames 14694Failed: error 140 at offset 10: invalid escape sequence in (*VERB) name 14695 14696/(*:ab\t(d\)c)xxx/ 14697Failed: error 122 at offset 12: unmatched closing parenthesis 14698 14699/(*:ab\t(d\)c)xxx/alt_verbnames,mark 14700 cxxxz 14701 0: xxx 14702MK: ab\x09(d)c 14703 14704/(*:A\Qxx)x\EB)x/alt_verbnames,mark 14705 x 14706 0: x 14707MK: Axx)xB 14708 14709/(*:A\ExxxB)x/alt_verbnames,mark 14710 x 14711 0: x 14712MK: AxxxB 14713 14714/(*: A \ and #comment 14715 \ B)x/x,alt_verbnames,mark 14716 x 14717 0: x 14718MK: A and B 14719 14720/(*: A \ and #comment 14721 \ B)x/alt_verbnames,mark 14722 x 14723 0: x 14724MK: A and #comment\x0a B 14725 14726/(*: A \ and #comment 14727 \ B)x/x,mark 14728 x 14729 0: x 14730MK: A \ and #comment\x0a \ B 14731 14732/(*: A \ and #comment 14733 \ B)x/mark 14734 x 14735 0: x 14736MK: A \ and #comment\x0a \ B 14737 14738/(*:A 14739B)x/alt_verbnames,mark 14740 x 14741 0: x 14742MK: A\x0aB 14743 14744/(*:abc\Qpqr)/alt_verbnames 14745Failed: error 160 at offset 12: (*VERB) not recognized or malformed 14746 14747/abc/use_offset_limit 14748 1234abcde\=offset_limit=100 14749 0: abc 14750 1234abcde\=offset_limit=9 14751 0: abc 14752 1234abcde\=offset_limit=4 14753 0: abc 14754 1234abcde\=offset_limit=4,offset=4 14755 0: abc 14756\= Expect no match 14757 1234abcde\=offset_limit=4,offset=5 14758No match 14759 1234abcde\=offset_limit=3 14760No match 14761 14762/(?<=abc)/use_offset_limit 14763 1234abc\=offset_limit=7 14764 0: 14765\= Expect no match 14766 1234abc\=offset_limit=6 14767No match 14768 14769/A/g,replace=-,use_offset_limit 14770 XAXAXAXAXA\=offset_limit=4 14771 2: X-X-XAXAXA 14772 14773/abc/ 14774\= Expect error 14775 1234abcde\=offset_limit=4 14776Failed: error -56: offset limit set without PCRE2_USE_OFFSET_LIMIT 14777 14778/^\w/m,use_offset_limit 14779 \n..\naa\=offset_limit=3 14780No match 14781 \n..\naa\=offset_limit=4 14782 0: a 14783 14784/abcd/null_context 14785 abcd\=null_context 14786 0: abcd 14787\= Expect error - not allowed together 14788 abcd\=null_context,find_limits 14789** Not allowed together: find_limits null_context 14790 abcd\=allusedtext,startchar 14791** Not allowed together: allusedtext startchar 14792 14793/abcd/replace=w\rx\x82y\o{333}z(\Q12\$34$$\x34\E5$$),substitute_extended 14794 abcd 14795 1: w\x0dx\x82y\xdbz(12\$34$$\x345$) 14796 14797/abcd/replace=w\rx\x82y\o{333}z(\Q12\$34$$\x34\E5$$),substitute_extended,substitute_literal 14798 >>abcd<< 14799 1: >>w\rx\x82y\o{333}z(\Q12\$34$$\x34\E5$$)<< 14800 14801/abcd/g,replace=\$1$2\,substitute_literal 14802 XabcdYabcdZ 14803 2: X\$1$2\Y\$1$2\Z 14804 14805/a(bc)(DE)/replace=a\u$1\U$1\E$1\l$2\L$2\Eab\Uab\LYZ\EDone,substitute_extended 14806 abcDE 14807 1: aBcBCbcdEdeabAByzDone 14808 14809/abcd/replace=xy\kz,substitute_extended 14810 abcd 14811Failed: error -57 at offset 4 in replacement: bad escape sequence in replacement string 14812 14813/a(?:(b)|(c))/substitute_extended,replace=X${1:+1:-1}X${2:+2:-2} 14814 ab 14815 1: X1X-2 14816 ac 14817 1: X-1X2 14818 ab\=replace=${1:+$1\:$1:$2} 14819 1: b:b 14820 ac\=replace=${1:+$1\:$1:$2} 14821 1: c 14822 >>ac<<\=replace=${1:+$1\:$1:$2},substitute_literal 14823 1: >>${1:+$1\:$1:$2}<< 14824 14825/a(?:(b)|(c))/substitute_extended,replace=X${1:-1:-1}X${2:-2:-2} 14826 ab 14827 1: XbX2:-2 14828 ac 14829 1: X1:-1Xc 14830 14831/(a)/substitute_extended,replace=>${1:+\Q$1:{}$$\E+\U$1}< 14832 a 14833 1: >$1:{}$$+A< 14834 14835/X(b)Y/substitute_extended 14836 XbY\=replace=x${1:+$1\U$1}y 14837 1: xbBY 14838 XbY\=replace=\Ux${1:+$1$1}y 14839 1: XBBY 14840 14841/a/substitute_extended,replace=${*MARK:+a:b} 14842 a 14843Failed: error -58 at offset 7 in replacement: expected closing curly bracket in replacement string 14844 14845/(abcd)/replace=${1:+xy\kz},substitute_extended 14846 abcd 14847Failed: error -57 at offset 8 in replacement: bad escape sequence in replacement string 14848 14849/(abcd)/ 14850 abcd\=replace=${1:+xy\kz},substitute_extended 14851Failed: error -57 at offset 8 in replacement: bad escape sequence in replacement string 14852 14853/abcd/substitute_extended,replace=>$1< 14854 abcd 14855Failed: error -49 at offset 3 in replacement: unknown substring 14856 14857/abcd/substitute_extended,replace=>xxx${xyz}<<< 14858 abcd 14859Failed: error -49 at offset 10 in replacement: unknown substring 14860 14861/(?J)(?:(?<A>a)|(?<A>b))/replace=<$A> 14862 [a] 14863 1: [<a>] 14864 [b] 14865 1: [<b>] 14866\= Expect error 14867 (a)\=ovector=1 14868Failed: error -54 at offset 3 in replacement: requested value is not available 14869 14870/(a)|(b)/replace=<$1> 14871\= Expect error 14872 b 14873Failed: error -55 at offset 3 in replacement: requested value is not set 14874 14875/(aa)(BB)/substitute_extended,replace=\U$1\L$2\E$1..\U$1\l$2$1 14876 aaBB 14877 1: AAbbaa..AAbBaa 14878 14879/abcd/replace=wxyz,substitute_matched 14880 abcd 14881 1: wxyz 14882 pqrs 14883 0: pqrs 14884 14885/abcd/g 14886 >abcd1234abcd5678<\=replace=wxyz,substitute_matched 14887 2: >wxyz1234wxyz5678< 14888 14889/^(o(\1{72}{\"{\\{00000059079}\d*){74}}){19}/I 14890Capture group count = 2 14891Max back reference = 1 14892Compile options: <none> 14893Overall options: anchored 14894First code unit = 'o' 14895Last code unit = '}' 14896Subject length lower bound = 65535 14897 14898/((p(?'K/ 14899Failed: error 142 at offset 7: syntax error in subpattern name (missing terminator?) 14900 14901/((p(?'K/no_auto_capture 14902Failed: error 142 at offset 7: syntax error in subpattern name (missing terminator?) 14903 14904/abc/replace=A$3123456789Z 14905 abc 14906Failed: error -49 at offset 3 in replacement: unknown substring 14907 14908/(?<!a{65535}a{5})x/I 14909Failed: error 187 at offset 0: lookbehind assertion is too long 14910 14911/(?<!a{65535})x/I 14912Capture group count = 0 14913Max lookbehind = 65535 14914First code unit = 'x' 14915Subject length lower bound = 1 14916 14917/(?=a\K)/replace=z 14918 BaCaD 14919Failed: error -60: match with end before start or start moved backwards is not supported 14920 14921/(?<=\K.)/g,replace=- 14922 ab 14923Failed: error -60: match with end before start or start moved backwards is not supported 14924 14925/(?'abcdefghijklmnopqrstuvwxyzABCDEFG'toolong)/ 14926Failed: error 148 at offset 36: subpattern name is too long (maximum 32 code units) 14927 14928/(?'abcdefghijklmnopqrstuvwxyzABCDEF'justright)/ 14929 14930# These two use zero-termination 14931/abcd/max_pattern_length=3 14932Failed: error 188 at offset 0: pattern string is longer than the limit set by the application 14933 14934/abc/max_pattern_length=3 14935 14936# These two, being hex, pass the length 14937/abcdefab/hex,max_pattern_length=3 14938Failed: error 188 at offset 0: pattern string is longer than the limit set by the application 14939 14940/abcdef/hex,max_pattern_length=3 14941 14942# These patterns used to take a long time to compile 14943 14944"(.*) 14945((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14946((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14947((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))"xI 14948Capture group count = 12 14949May match empty string 14950Options: extended 14951First code unit at start or follows newline 14952Subject length lower bound = 0 14953 14954"(?<=a() 14955((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14956((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14957((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14958a)"xI 14959Capture group count = 12 14960Max lookbehind = 2 14961May match empty string 14962Options: extended 14963Subject length lower bound = 0 14964 14965"(?|()|())(.*) 14966((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14967((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14968((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))"xI 14969Capture group count = 13 14970May match empty string 14971Options: extended 14972Subject length lower bound = 0 14973 14974"(?|()|())(?<=a() 14975((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14976((?-2)(?-2))((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14977((?-2)(?-2))((?-2)(?-2))((?-2)(?-2)) 14978a)"xI 14979Failed: error 135 at offset 9: lookbehind is too complicated 14980 14981# Test the use of malloc for caching group information when there are more 14982# groups than fit into the on-stack workspace. 14983 14984/\[()]{1024}/I,expand 14985Expanded: ()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()() 14986Capture group count = 1024 14987May match empty string 14988Subject length lower bound = 0 14989 14990# Test minlength capped at 65535 14991 14992/(A{65000})\1{65000}/I 14993Capture group count = 1 14994Max back reference = 1 14995First code unit = 'A' 14996Last code unit = 'A' 14997Subject length lower bound = 65535 14998 14999# Test group scans when numbers are not unique 15000 15001/(?|()+|(a)+)/BI 15002------------------------------------------------------------------ 15003 Bra 15004 Bra 15005 SCBra 1 15006 KetRmax 15007 Alt 15008 CBra 1 15009 a 15010 KetRmax 15011 Ket 15012 Ket 15013 End 15014------------------------------------------------------------------ 15015Capture group count = 1 15016May match empty string 15017Subject length lower bound = 0 15018 15019/(?|(a)+|()+)/BI 15020------------------------------------------------------------------ 15021 Bra 15022 Bra 15023 CBra 1 15024 a 15025 KetRmax 15026 Alt 15027 SCBra 1 15028 KetRmax 15029 Ket 15030 Ket 15031 End 15032------------------------------------------------------------------ 15033Capture group count = 1 15034May match empty string 15035Subject length lower bound = 0 15036 15037/(?|()|(a))/BI 15038------------------------------------------------------------------ 15039 Bra 15040 Bra 15041 CBra 1 15042 Ket 15043 Alt 15044 CBra 1 15045 a 15046 Ket 15047 Ket 15048 Ket 15049 End 15050------------------------------------------------------------------ 15051Capture group count = 1 15052May match empty string 15053Subject length lower bound = 0 15054 15055/(?|(a)|())/BI 15056------------------------------------------------------------------ 15057 Bra 15058 Bra 15059 CBra 1 15060 a 15061 Ket 15062 Alt 15063 CBra 1 15064 Ket 15065 Ket 15066 Ket 15067 End 15068------------------------------------------------------------------ 15069Capture group count = 1 15070May match empty string 15071Subject length lower bound = 0 15072 15073# Test CRLF handling in empty string substitutions 15074 15075/^$/gm,newline=anycrlf,replace=- 15076 X\r\n\r\nY 15077 1: X\x0d\x0a-\x0d\x0aY 15078 15079/^$/gm,newline=crlf,replace=- 15080 X\r\n\r\nY 15081 1: X\x0d\x0a-\x0d\x0aY 15082 15083/^$/gm,newline=any,replace=- 15084 X\r\n\r\nY 15085 1: X\x0d\x0a-\x0d\x0aY 15086 15087"(*ANYCRLF)(?m)^(.*[^0-9\r\n].*|)$"g,replace=NaN 15088 15\r\nfoo\r\n20\r\nbar\r\nbaz\r\n\r\n20 15089 4: 15\x0d\x0aNaN\x0d\x0a20\x0d\x0aNaN\x0d\x0aNaN\x0d\x0aNaN\x0d\x0a20 15090 15091/a[[:punct:]b]/bincode 15092------------------------------------------------------------------ 15093 Bra 15094 a 15095 [!-/:-@[-`b{-~] 15096 Ket 15097 End 15098------------------------------------------------------------------ 15099 15100/a[b[:punct:]]/bincode 15101------------------------------------------------------------------ 15102 Bra 15103 a 15104 [!-/:-@[-`b{-~] 15105 Ket 15106 End 15107------------------------------------------------------------------ 15108 15109/L(?#(|++<!(2)?/B 15110------------------------------------------------------------------ 15111 Bra 15112 L?+ 15113 Ket 15114 End 15115------------------------------------------------------------------ 15116 15117/L(?#(|++<!(2)?/B,no_auto_possess 15118------------------------------------------------------------------ 15119 Bra 15120 L? 15121 Ket 15122 End 15123------------------------------------------------------------------ 15124 15125/L(?#(|++<!(2)?/B,auto_callout 15126------------------------------------------------------------------ 15127 Bra 15128 Callout 255 0 14 15129 L?+ 15130 Callout 255 14 0 15131 Ket 15132 End 15133------------------------------------------------------------------ 15134 15135/L(?#(|++<!(2)?/B,no_auto_possess,auto_callout 15136------------------------------------------------------------------ 15137 Bra 15138 Callout 255 0 14 15139 L? 15140 Callout 255 14 0 15141 Ket 15142 End 15143------------------------------------------------------------------ 15144 15145/(A*)\E+/B,auto_callout 15146------------------------------------------------------------------ 15147 Bra 15148 Callout 255 0 1 15149 SCBra 1 15150 Callout 255 1 2 15151 A* 15152 Callout 255 3 4 15153 KetRmax 15154 Callout 255 7 0 15155 Ket 15156 End 15157------------------------------------------------------------------ 15158 15159/()\Q\E*]/B,auto_callout 15160------------------------------------------------------------------ 15161 Bra 15162 Callout 255 0 1 15163 Brazero 15164 SCBra 1 15165 Callout 255 1 6 15166 KetRmax 15167 Callout 255 7 1 15168 ] 15169 Callout 255 8 0 15170 Ket 15171 End 15172------------------------------------------------------------------ 15173 a[bc]d 15174--->a[bc]d 15175 +0 ^ ( 15176 +1 ^ )\Q\E* 15177 +7 ^ ] 15178 +8 ^^ End of pattern 15179 0: ] 15180 1: 15181 15182/\x8a+f|;T?(*:;.'?`(\xeap ){![^()!y*''C*(?';]{1;(\x08)/B,alt_verbnames,dupnames,extended 15183------------------------------------------------------------------ 15184 Bra 15185 \x{8a}++ 15186 f 15187 Alt 15188 ; 15189 T? 15190 *MARK ;.'?`(\x{ea}p 15191 {! 15192 [\x00- "-&+-:<->@-BD-xz-\xff] (neg) 15193 {1; 15194 CBra 1 15195 \x08 15196 Ket 15197 Ket 15198 End 15199------------------------------------------------------------------ 15200 15201# Tests for NULL characters in comments and verb "names" and callouts 15202 15203# /A#B\x00C\x0aZ/ 15204/41 23 42 00 43 0a 5a/Bx,hex 15205------------------------------------------------------------------ 15206 Bra 15207 AZ 15208 Ket 15209 End 15210------------------------------------------------------------------ 15211 15212# /A+#B\x00C\x0a+/ 15213/41 2b 23 42 00 43 0a 2b/Bx,hex 15214------------------------------------------------------------------ 15215 Bra 15216 A++ 15217 Ket 15218 End 15219------------------------------------------------------------------ 15220 15221# /A(*:B\x00W#X\00Y\x0aC)Z/ 15222/41 28 2a 3a 42 00 57 23 58 00 59 0a 43 29 5a/Bx,hex,alt_verbnames 15223------------------------------------------------------------------ 15224 Bra 15225 A 15226 *MARK B\x{0}WC 15227 Z 15228 Ket 15229 End 15230------------------------------------------------------------------ 15231 15232# /A(*:B\x00W#X\00Y\x0aC)Z/ 15233/41 28 2a 3a 42 00 57 23 58 00 59 0a 43 29 5a/Bx,hex 15234------------------------------------------------------------------ 15235 Bra 15236 A 15237 *MARK B\x{0}W#X\x{0}Y\x{a}C 15238 Z 15239 Ket 15240 End 15241------------------------------------------------------------------ 15242 15243# /A(?C{X\x00Y})B/ 15244/41 28 3f 43 7b 58 00 59 7d 29 42/B,hex 15245------------------------------------------------------------------ 15246 Bra 15247 A 15248 CalloutStr {X\x{0}Y} 5 10 1 15249 B 15250 Ket 15251 End 15252------------------------------------------------------------------ 15253 15254# /A(?#X\x00Y)B/ 15255/41 28 3f 23 7b 00 7d 29 42/B,hex 15256------------------------------------------------------------------ 15257 Bra 15258 AB 15259 Ket 15260 End 15261------------------------------------------------------------------ 15262 15263# Tests for leading comment in extended patterns 15264 15265/ (?-x):?/extended 15266 15267/ (?-x):?/extended 15268 15269/0b 28 3f 2d 78 29 3a/hex,extended 15270 15271/#comment 15272(?-x):?/extended 15273 15274/(8(*:6^\x09x\xa6l\)6!|\xd0:[^:|)\x09d\Z\d{85*m(?'(?<1!)*\W[*\xff]!!h\w]*\xbe;/alt_bsux,alt_verbnames,allow_empty_class,dollar_endonly,extended,multiline,never_utf,no_dotstar_anchor,no_start_optimize 15275Failed: error 162 at offset 49: subpattern name expected 15276 15277/a|(b)c/replace=>$1<,substitute_unset_empty 15278 cat 15279 1: c><t 15280 xbcom 15281 1: x>b<om 15282 15283/a|(b)c/ 15284 cat\=replace=>$1< 15285Failed: error -55 at offset 3 in replacement: requested value is not set 15286 cat\=replace=>$1<,substitute_unset_empty 15287 1: c><t 15288 xbcom\=replace=>$1<,substitute_unset_empty 15289 1: x>b<om 15290 15291/a|(b)c/substitute_extended 15292 cat\=replace=>${2:-xx}< 15293Failed: error -49 at offset 9 in replacement: unknown substring 15294 cat\=replace=>${2:-xx}<,substitute_unknown_unset 15295 1: c>xx<t 15296 cat\=replace=>${X:-xx}<,substitute_unknown_unset 15297 1: c>xx<t 15298 15299/a|(?'X'b)c/replace=>$X<,substitute_unset_empty 15300 cat 15301 1: c><t 15302 xbcom 15303 1: x>b<om 15304 15305/a|(?'X'b)c/replace=>$Y<,substitute_unset_empty 15306 cat 15307Failed: error -49 at offset 3 in replacement: unknown substring 15308 cat\=substitute_unknown_unset 15309 1: c><t 15310 cat\=substitute_unknown_unset,-substitute_unset_empty 15311Failed: error -55 at offset 3 in replacement: requested value is not set 15312 15313/a|(b)c/replace=>$2<,substitute_unset_empty 15314 cat 15315Failed: error -49 at offset 3 in replacement: unknown substring 15316 cat\=substitute_unknown_unset 15317 1: c><t 15318 cat\=substitute_unknown_unset,-substitute_unset_empty 15319Failed: error -55 at offset 3 in replacement: requested value is not set 15320 15321/()()()/use_offset_limit 15322 \=ovector=11000000000 15323** Invalid value in 'ovector=11000000000' 15324 \=callout_fail=11000000000 15325** Invalid value in 'callout_fail=11000000000' 15326 \=callout_fail=1:11000000000 15327** Invalid value in 'callout_fail=1:11000000000' 15328 \=callout_data=11000000000 15329** Invalid value in 'callout_data=11000000000' 15330 \=callout_data=-11000000000 15331** Invalid value in 'callout_data=-11000000000' 15332 \=offset_limit=1100000000000000000000 15333** Invalid value in 'offset_limit=1100000000000000000000' 15334 \=copy=11000000000 15335** Invalid value in 'copy=11000000000' 15336 15337/(*MARK:A\x00b)/mark 15338 abc 15339 0: 15340MK: A\x00b 15341 15342/(*MARK:A\x00b)/mark,alt_verbnames 15343 abc 15344 0: 15345MK: A\x00b 15346 15347/"(*MARK:A" 00 "b)"/mark,hex 15348 abc 15349 0: 15350MK: A\x00b 15351 15352/"(*MARK:A" 00 "b)"/mark,hex,alt_verbnames 15353 abc 15354 0: 15355MK: A\x00b 15356 15357/efg/hex 15358** Unexpected non-hex-digit 'g' at offset 2 in hex pattern: quote missing? 15359 15360/eff/hex 15361** Odd number of digits in hex pattern 15362 15363/effg/hex 15364** Unexpected non-hex-digit 'g' at offset 3 in hex pattern: quote missing? 15365 15366/(?J)(?'a'))(?'a')/ 15367Failed: error 122 at offset 10: unmatched closing parenthesis 15368 15369/(?<=((?C)0))/ 15370 9010 15371--->9010 15372 0 ^ 0 15373 0 ^ 0 15374 0: 15375 1: 0 15376\= Expect no match 15377 abc 15378--->abc 15379 0 ^ 0 15380 0 ^ 0 15381 0 ^ 0 15382No match 15383 15384/aaa/ 15385\[abc]{10000000000000000000000000000} 15386** Repeat count too large 15387\[a]{3} 15388 0: aaa 15389 15390/\[AB]{6000000000000000000000}/expand 15391** Pattern repeat count too large 15392 15393# Hex uses pattern length, not zero-terminated. This tests for overrunning 15394# the given length of a pattern. 15395 15396/'(*U'/hex 15397Failed: error 160 at offset 3: (*VERB) not recognized or malformed 15398 15399/'(*'/hex 15400Failed: error 109 at offset 1: quantifier does not follow a repeatable item 15401 15402/'('/hex 15403Failed: error 114 at offset 1: missing closing parenthesis 15404 15405//hex 15406 15407# These tests are here because Perl never allows a back reference in a 15408# lookbehind. PCRE2 supports some limited cases. 15409 15410/([ab])...(?<=\1)z/ 15411 a11az 15412 0: a11az 15413 1: a 15414 b11bz 15415 0: b11bz 15416 1: b 15417\= Expect no match 15418 b11az 15419No match 15420 15421/(?|([ab]))...(?<=\1)z/ 15422Failed: error 125 at offset 13: lookbehind assertion is not fixed length 15423 15424/([ab])(\1)...(?<=\2)z/ 15425 aa11az 15426 0: aa11az 15427 1: a 15428 2: a 15429 15430/(a\2)(b\1)(?<=\2)/ 15431Failed: error 125 at offset 10: lookbehind assertion is not fixed length 15432 15433/(?<A>[ab])...(?<=\k'A')z/ 15434 a11az 15435 0: a11az 15436 1: a 15437 b11bz 15438 0: b11bz 15439 1: b 15440\= Expect no match 15441 b11az 15442No match 15443 15444/(?<A>[ab])...(?<=\k'A')(?<A>)z/dupnames 15445Failed: error 125 at offset 13: lookbehind assertion is not fixed length 15446 15447# Perl does not support \g+n 15448 15449/((\g+1X)?([ab]))+/ 15450 aaXbbXa 15451 0: aaXbbXa 15452 1: bXa 15453 2: bX 15454 3: a 15455 15456/ab(?C1)c/auto_callout 15457 abc 15458--->abc 15459 +0 ^ a 15460 +1 ^^ b 15461 1 ^ ^ c 15462 +8 ^ ^ End of pattern 15463 0: abc 15464 15465/'ab(?C1)c'/hex,auto_callout 15466 abc 15467--->abc 15468 +0 ^ a 15469 +1 ^^ b 15470 1 ^ ^ c 15471 +8 ^ ^ End of pattern 15472 0: abc 15473 15474# Perl accepts these, but gives a warning. We can't warn, so give an error. 15475 15476/[a-[:digit:]]+/ 15477Failed: error 150 at offset 4: invalid range in character class 15478 a-a9-a 15479 15480/[A-[:digit:]]+/ 15481Failed: error 150 at offset 4: invalid range in character class 15482 A-A9-A 15483 15484/[a-\d]+/ 15485Failed: error 150 at offset 5: invalid range in character class 15486 a-a9-a 15487 15488/(?<RA>abc)(?(R)xyz)/B 15489------------------------------------------------------------------ 15490 Bra 15491 CBra 1 15492 abc 15493 Ket 15494 Cond 15495 Cond recurse any 15496 xyz 15497 Ket 15498 Ket 15499 End 15500------------------------------------------------------------------ 15501 15502/(?<R>abc)(?(R)xyz)/B 15503------------------------------------------------------------------ 15504 Bra 15505 CBra 1 15506 abc 15507 Ket 15508 Cond 15509 1 Cond ref 15510 xyz 15511 Ket 15512 Ket 15513 End 15514------------------------------------------------------------------ 15515 15516/(?=.*[A-Z])/I 15517Capture group count = 0 15518May match empty string 15519Subject length lower bound = 0 15520 15521/()(?<=(?0))/ 15522Failed: error 125 at offset 2: lookbehind assertion is not fixed length 15523 15524/(?<!|!(?<!))/ 15525 15526/(?<!|!|!||||||(?<!)||(?<!)!|!||(?<!)!|!(?<!)!|!|!|!||||!!|<!)!|!||||!|/ 15527 15528/{2,2{2,2/use_length 15529 15530/.>*?\g'0/use_length 15531Failed: error 157 at offset 6: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 15532 15533/.>*?\g'0/ 15534Failed: error 157 at offset 6: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 15535 15536/{�̈́�̈́�{'{22{2{{2{'{22{{22{2{'{22{2{{2{{222{{2{'{22{2{22{2{'{22{2{{2{'{22{2{22{2{'{'{22{2{22{2{'{22{2{{2{'{22{2{22{2{'{222{2Ą̈́�̈́�{'{22{2{{2{'{22{{11{2{'{22{2{{2{{'{22{2{{2{'{22{{22{1{'{22{2{{2{{222{{2{'{22{2{22{2{'{/auto_callout 15537 15538// 15539\=get=i00000000000000000000000000000000 15540** Group name in 'get' is too long 15541\=get=i2345678901234567890123456789012,get=i1245678901234567890123456789012 15542** Too many characters in named 'get' modifiers 15543 15544"(?(?C))" 15545Failed: error 128 at offset 6: assertion expected after (?( or (?(?C) 15546 15547/(?(?(?(?(?(?))))))/ 15548Failed: error 128 at offset 2: assertion expected after (?( or (?(?C) 15549 15550/(?<=(?1))((?s))/anchored 15551 15552/(*:ab)*/ 15553Failed: error 109 at offset 6: quantifier does not follow a repeatable item 15554 15555%(*: (:( svvvvvvvvvv:]*[ Z!*;[]*[^[]*!^[+.+{{2,7}' _\\\\\\\\\\\\\)?.:.. *w////\\\Q\\\\\\\\\\\\\\\T\\\\\+/?/////'+\\\EEE?/////'+/*+/[^K]?]//(w)%never_backslash_c,alt_verbnames,auto_callout 15556 15557/./newline=crlf 15558 \=ph 15559No match 15560 15561/(\x0e00\000000\xc)/replace=\P,substitute_extended 15562 \x0e00\000000\xc 15563Failed: error -57 at offset 2 in replacement: bad escape sequence in replacement string 15564 15565//replace=0 15566 \=offset=7 15567Failed: error -33: bad offset value 15568 15569/(?<=\G.)/g,replace=+ 15570 abc 15571 3: a+b+c+ 15572 15573".+\QX\E+"B,no_auto_possess 15574------------------------------------------------------------------ 15575 Bra 15576 Any+ 15577 X+ 15578 Ket 15579 End 15580------------------------------------------------------------------ 15581 15582".+\QX\E+"B,auto_callout,no_auto_possess 15583------------------------------------------------------------------ 15584 Bra 15585 Callout 255 0 4 15586 Any+ 15587 Callout 255 4 4 15588 X+ 15589 Callout 255 8 0 15590 Ket 15591 End 15592------------------------------------------------------------------ 15593 15594# This one is here because Perl gives an 'unmatched )' error which goes away 15595# if one of the \) sequences is removed - which is weird. PCRE finds it too 15596# complicated to find a minimum matching length. 15597 15598"()X|((((((((()))))))((((())))))\2())((((((\2\2)))\2)(\22((((\2\2)2))\2)))(2\ZZZ)+:)Z^|91ZiZZnter(ZZ |91Z(ZZ ZZ(\r2Z( or#(\Z2(Z\Z(\2\2)2))\2Z)Z(\22Z((\Z2(Z\Z(\2\2)2))\2Z+:)Z|91Z(ZZ ZZ(\r2Z( or#(\Z2(Z\Z((Z*(\2(Z\':))\0)i|||||||||||||||loZ\2\2)2))\2Z)Z(\22Z((\Z2(Z\Z(\2\2)2))\2Z)))int \)\0nte!rnal errpr\2\\21r(2\ZZZ)+:)Z!|91Z(ZZ ZZ(\r2Z( or#(\Z2(Z\Z(\2\2)2))\2Z)Z(\22Z((\Z2(Z\Z(\2\2)2))\2Z)))int \)\0(2\ZZZ)+:)Z^|91ZiZZnter(ZZ |91Z(ZZ ZZ(\r2Z( or#(\Z2(Z\Z(\2\2)2))\2Z)Z(\22Z((\Z2(Z\Z(\2\2)2))\2Z)))int \)\0(2\ZZZ)+:)Z^)))int \)\0(2\ZZZ)+:)Z^|91ZiZZnter(ZZernZal ZZ(\r2Z( or#(\Z2(Z\Z(\2\2)2))\2Z)Z(\22Z((\Z2(Z\Z(\2\2)2))\2Z)))int \))\ZZ(\r2Z( or#(\Z2(Z\Z(\2\2)2))\2Z)Z(\22Z((\Z2(Z\Z(\2\2)))\2))))((((((\2\2))))))"I 15599Capture group count = 108 15600Max back reference = 22 15601Contains explicit CR or LF match 15602Subject length lower bound = 1 15603 15604# This checks that new code for handling groups that may match an empty string 15605# works on a very large number of alternatives. This pattern used to provoke a 15606# complaint that it was too complicated. 15607 15608/(?:\[A|B|C|D|E|F|G|H|I|J|]{200}Z)/expand 15609 15610# This one used to compile rubbish instead of a compile error, and then 15611# behave unpredictably at match time. 15612 15613/.+(?(?C'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'))?!XXXX.=X/ 15614Failed: error 128 at offset 63: assertion expected after (?( or (?(?C) 15615 .+(?(?C'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'))?!XXXX.=X 15616 15617/[:[:alnum:]-[[a:lnum:]+/ 15618Failed: error 150 at offset 11: invalid range in character class 15619 15620/((?(?C'')\QX\E(?!((?(?C'')(?!X=X));=)r*X=X));=)/ 15621Failed: error 128 at offset 11: assertion expected after (?( or (?(?C) 15622 15623/((?(?C'')\Q\E(?!((?(?C'')(?!X=X));=)r*X=X));=)/ 15624 15625/abcd/auto_callout 15626 abcd\=callout_error=255:2 15627--->abcd 15628 +0 ^ a 15629 +1 ^^ b 15630Failed: error -37: callout error code 15631 15632/()(\g+65534)/ 15633Failed: error 161 at offset 11: subpattern number is too big 15634 15635/()(\g+65533)/ 15636Failed: error 115 at offset 10: reference to non-existent subpattern 15637 15638/�\x00\x00\x00�(\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\2*\x00k\d+\x00\x00\x00\x00\x00\x00\2*\x00\x00\1*.){36}int^\x00\x00��\x00�(\1{50779}?)J\w2/I 15639Capture group count = 2 15640Max back reference = 2 15641First code unit = \xc1 15642Last code unit = '2' 15643Subject length lower bound = 65535 15644 15645/(a)(b)\2\1\1\1\1/I 15646Capture group count = 2 15647Max back reference = 2 15648First code unit = 'a' 15649Last code unit = 'b' 15650Subject length lower bound = 7 15651 15652/(?<a>a)(?<b>b)\g{b}\g{a}\g{a}\g{a}\g{a}(?<a>xx)(?<b>zz)/I,dupnames 15653Capture group count = 4 15654Max back reference = 4 15655Named capture groups: 15656 a 1 15657 a 3 15658 b 2 15659 b 4 15660Options: dupnames 15661First code unit = 'a' 15662Last code unit = 'z' 15663Subject length lower bound = 11 15664 15665// 15666 \=ovector=7777777777 15667** Invalid value in 'ovector=7777777777' 15668 15669# This is here because Perl matches, even though a COMMIT is encountered 15670# outside of the recursion. 15671 15672/(?1)(A(*COMMIT)|B)D/ 15673 BAXBAD 15674No match 15675 15676"(?1){2}(a)"B 15677------------------------------------------------------------------ 15678 Bra 15679 Recurse 15680 Recurse 15681 CBra 1 15682 a 15683 Ket 15684 Ket 15685 End 15686------------------------------------------------------------------ 15687 15688"(?1){2,4}(a)"B 15689------------------------------------------------------------------ 15690 Bra 15691 Recurse 15692 Recurse 15693 Brazero 15694 Bra 15695 Bra 15696 Recurse 15697 Ket 15698 Brazero 15699 Bra 15700 Recurse 15701 Ket 15702 Ket 15703 CBra 1 15704 a 15705 Ket 15706 Ket 15707 End 15708------------------------------------------------------------------ 15709 15710# This test differs from Perl for the first subject. Perl ends up with 15711# $1 set to 'B'; PCRE2 has it unset (which I think is right). 15712 15713/^(?: 15714(?:A| (?:B|B(*ACCEPT)) (?<=(.)) D) 15715(Z) 15716)+$/x 15717 AZB 15718 0: AZB 15719 1: <unset> 15720 2: Z 15721 AZBDZ 15722 0: AZBDZ 15723 1: B 15724 2: Z 15725 15726# The first of these, when run by Perl, gives the mark 'aa', which is wrong. 15727 15728'(?>a(*:aa))b|ac' mark 15729 ac 15730 0: ac 15731 15732'(?:a(*:aa))b|ac' mark 15733 ac 15734 0: ac 15735 15736/(R?){65}/ 15737 (R?){65} 15738 0: 15739 1: 15740 15741/\[(a)]{60}/expand 15742 aaaa 15743No match 15744 15745/(?<!\1((?U)1((?U))))(*F)/never_backslash_c,alt_bsux,anchored,extended 15746 15747/\g{3/ 15748Failed: error 157 at offset 2: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number 15749 15750/(a(?C1)(b)(c)d)+/ 15751 abcdabcd\=callout_capture 15752Callout 1: last capture = 0 15753--->abcdabcd 15754 ^^ ( 15755Callout 1: last capture = 1 15756 1: abcd 15757 2: b 15758 3: c 15759--->abcdabcd 15760 ^ ^ ( 15761 0: abcdabcd 15762 1: abcd 15763 2: b 15764 3: c 15765 15766# Perl matches this one, but PCRE does not because (*ACCEPT) clears out any 15767# pending backtracks in the recursion. 15768 15769/^ (?(DEFINE) (..(*ACCEPT)|...) ) (?1)$/x 15770\= Expect no match 15771 abc 15772No match 15773 15774# Perl gives no match for this one 15775 15776/(a(*MARK:m)(*ACCEPT)){0}(?1)/mark 15777 abc 15778 0: a 15779MK: m 15780 15781/abc/endanchored 15782 xyzabc 15783 0: abc 15784\= Expect no match 15785 xyzabcdef 15786No match 15787\= Expect error 15788 xyzabc\=ph 15789Failed: error -34: bad option value 15790 15791/abc/ 15792 xyzabc\=endanchored 15793 0: abc 15794\= Expect no match 15795 xyzabcdef\=endanchored 15796No match 15797\= Expect error 15798 xyzabc\=ps,endanchored 15799Failed: error -34: bad option value 15800 15801/abc(*ACCEPT)d/endanchored 15802 xyzabc 15803 0: abc 15804\= Expect no match 15805 xyzabcdef 15806No match 15807 15808/abc|bcd/endanchored 15809 xyzabcd 15810 0: bcd 15811\= Expect no match 15812 xyzabcdef 15813No match 15814 15815/a(*ACCEPT)x|aa/endanchored 15816 aaa 15817 0: a 15818 15819# Check auto-anchoring when there is a group that is never obeyed at 15820# the start of a branch. 15821 15822/(?(DEFINE)(a))^bc/I 15823Capture group count = 1 15824Compile options: <none> 15825Overall options: anchored 15826First code unit = 'b' 15827Subject length lower bound = 2 15828 15829/(a){0}.*bc/sI 15830Capture group count = 1 15831Compile options: dotall 15832Overall options: anchored dotall 15833Last code unit = 'c' 15834Subject length lower bound = 2 15835 15836# This should be anchored, as the condition is always false and there is 15837# no alternative branch. 15838 15839/(?(VERSION>=999)yes)^bc/I 15840Capture group count = 0 15841Compile options: <none> 15842Overall options: anchored 15843Subject length lower bound = 2 15844 15845# This should not be anchored. 15846 15847/(?(VERSION>=999)yes|no)^bc/I 15848Capture group count = 0 15849Last code unit = 'c' 15850Subject length lower bound = 4 15851 15852/(*LIMIT_HEAP=0)xxx/I 15853Capture group count = 0 15854Heap limit = 0 15855First code unit = 'x' 15856Last code unit = 'x' 15857Subject length lower bound = 3 15858 15859/\d{0,3}(*:abc)(?C1)xxx/callout_info 15860Callout 1 x 15861 15862# ---------------------------------------------------------------------- 15863 15864# These are a whole pile of tests that touch lines of code that are not 15865# used by any other tests (at least when these were created). 15866 15867/^a+?x/i,no_start_optimize,no_auto_possess 15868\= Expect no match 15869 aaa 15870No match 15871 15872/^[^a]{3,}?x/i,no_start_optimize,no_auto_possess 15873\= Expect no match 15874 bbb 15875No match 15876 cc 15877No match 15878 15879/^X\S/no_start_optimize,no_auto_possess 15880\= Expect no match 15881 X 15882No match 15883 15884/^X\W/no_start_optimize,no_auto_possess 15885\= Expect no match 15886 X 15887No match 15888 15889/^X\H/no_start_optimize,no_auto_possess 15890\= Expect no match 15891 X 15892No match 15893 15894/^X\h/no_start_optimize,no_auto_possess 15895\= Expect no match 15896 X 15897No match 15898 15899/^X\V/no_start_optimize,no_auto_possess 15900\= Expect no match 15901 X 15902No match 15903 15904/^X\v/no_start_optimize,no_auto_possess 15905\= Expect no match 15906 X 15907No match 15908 15909/^X\h/no_start_optimize,no_auto_possess 15910\= Expect no match 15911 XY 15912No match 15913 15914/^X\V/no_start_optimize,no_auto_possess 15915\= Expect no match 15916 X\n 15917No match 15918 15919/^X\v/no_start_optimize,no_auto_possess 15920\= Expect no match 15921 XX 15922No match 15923 15924/^X.+?/s,no_start_optimize,no_auto_possess 15925\= Expect no match 15926 X 15927No match 15928 15929/^X\R+?/no_start_optimize,no_auto_possess 15930\= Expect no match 15931 XX 15932No match 15933 15934/^X\H+?/no_start_optimize,no_auto_possess 15935\= Expect no match 15936 X 15937No match 15938 15939/^X\h+?/no_start_optimize,no_auto_possess 15940\= Expect no match 15941 X 15942No match 15943 15944/^X\V+?/no_start_optimize,no_auto_possess 15945\= Expect no match 15946 X 15947No match 15948 X\n 15949No match 15950 15951/^X\D+?/no_start_optimize,no_auto_possess 15952\= Expect no match 15953 X 15954No match 15955 X9 15956No match 15957 15958/^X\S+?/no_start_optimize,no_auto_possess 15959\= Expect no match 15960 X 15961No match 15962 X\n 15963No match 15964 15965/^X\W+?/no_start_optimize,no_auto_possess 15966\= Expect no match 15967 X 15968No match 15969 XX 15970No match 15971 15972/^X.+?Z/no_start_optimize,no_auto_possess 15973\= Expect no match 15974 XY\n 15975No match 15976 15977/(*CRLF)^X.+?Z/no_start_optimize,no_auto_possess 15978\= Expect no match 15979 XY\r\=ps 15980Partial match: XY\x0d 15981 15982/^X\R+?Z/no_start_optimize,no_auto_possess 15983\= Expect no match 15984 X\nX 15985No match 15986 X\n\r\n 15987No match 15988 X\n\rY 15989No match 15990 X\n\nY 15991No match 15992 X\n\x{0c}Y 15993No match 15994 15995/(*BSR_ANYCRLF)^X\R+?Z/no_start_optimize,no_auto_possess 15996\= Expect no match 15997 X\nX 15998No match 15999 X\n\r\n 16000No match 16001 X\n\rY 16002No match 16003 X\n\nY 16004No match 16005 X\n\x{0c}Y 16006No match 16007 16008/^X\H+?Z/no_start_optimize,no_auto_possess 16009\= Expect no match 16010 XY\t 16011No match 16012 XYY 16013No match 16014 16015/^X\h+?Z/no_start_optimize,no_auto_possess 16016\= Expect no match 16017 X\t\t 16018No match 16019 X\tY 16020No match 16021 16022/^X\V+?Z/no_start_optimize,no_auto_possess 16023\= Expect no match 16024 XY\n 16025No match 16026 XYY 16027No match 16028 16029/^X\v+?Z/no_start_optimize,no_auto_possess 16030\= Expect no match 16031 X\n\n 16032No match 16033 X\nY 16034No match 16035 16036/^X\D+?Z/no_start_optimize,no_auto_possess 16037\= Expect no match 16038 XY9 16039No match 16040 XYY 16041No match 16042 16043/^X\d+?Z/no_start_optimize,no_auto_possess 16044\= Expect no match 16045 X99 16046No match 16047 X9Y 16048No match 16049 16050/^X\S+?Z/no_start_optimize,no_auto_possess 16051\= Expect no match 16052 XY\n 16053No match 16054 XYY 16055No match 16056 16057/^X\s+?Z/no_start_optimize,no_auto_possess 16058\= Expect no match 16059 X\n\n 16060No match 16061 X\nY 16062No match 16063 16064/^X\W+?Z/no_start_optimize,no_auto_possess 16065\= Expect no match 16066 X.A 16067No match 16068 X++ 16069No match 16070 16071/^X\w+?Z/no_start_optimize,no_auto_possess 16072\= Expect no match 16073 Xa. 16074No match 16075 Xaa 16076No match 16077 16078/^X.{1,3}Z/s,no_start_optimize,no_auto_possess 16079\= Expect no match 16080 Xa.bd 16081No match 16082 16083/^X\h+Z/no_start_optimize,no_auto_possess 16084\= Expect no match 16085 X\t\t 16086No match 16087 X\tY 16088No match 16089 16090/^X\V+Z/no_start_optimize,no_auto_possess 16091\= Expect no match 16092 XY\n 16093No match 16094 XYY 16095No match 16096 16097/^(X(*THEN)Y|AB){0}(?1)/ 16098 ABX 16099 0: AB 16100\= Expect no match 16101 XAB 16102No match 16103 16104/^(?!A(?C1)B)C/ 16105 ABC\=callout_error=1,no_jit 16106No match 16107 16108/^(?!A(?C1)B)C/no_start_optimize 16109 ABC\=callout_error=1 16110--->ABC 16111 1 ^^ B 16112Failed: error -37: callout error code 16113 16114/^(?(?!A(?C1)B)C)/ 16115 ABC\=callout_error=1 16116--->ABC 16117 1 ^^ B 16118Failed: error -37: callout error code 16119 16120# ---------------------------------------------------------------------- 16121 16122/[a b c]/BxxI 16123------------------------------------------------------------------ 16124 Bra 16125 [a-c] 16126 Ket 16127 End 16128------------------------------------------------------------------ 16129Capture group count = 0 16130Options: extended_more 16131Starting code units: a b c 16132Subject length lower bound = 1 16133 16134/[a b c]/BxxxI 16135------------------------------------------------------------------ 16136 Bra 16137 [a-c] 16138 Ket 16139 End 16140------------------------------------------------------------------ 16141Capture group count = 0 16142Options: extended extended_more 16143Starting code units: a b c 16144Subject length lower bound = 1 16145 16146/[a b c]/B,extended_more 16147------------------------------------------------------------------ 16148 Bra 16149 [a-c] 16150 Ket 16151 End 16152------------------------------------------------------------------ 16153 16154/[ a b c ]/B,extended_more 16155------------------------------------------------------------------ 16156 Bra 16157 [a-c] 16158 Ket 16159 End 16160------------------------------------------------------------------ 16161 16162/[a b](?xx: [ 12 ] (?-xx:[ 34 ]) )y z/B 16163------------------------------------------------------------------ 16164 Bra 16165 [ ab] 16166 Bra 16167 [12] 16168 Bra 16169 [ 34] 16170 Ket 16171 Ket 16172 y z 16173 Ket 16174 End 16175------------------------------------------------------------------ 16176 16177# Unsetting /x also unsets /xx 16178 16179/[a b](?xx: [ 12 ] (?-x:[ 34 ]) )y z/B 16180------------------------------------------------------------------ 16181 Bra 16182 [ ab] 16183 Bra 16184 [12] 16185 Bra 16186 [ 34] 16187 Ket 16188 Ket 16189 y z 16190 Ket 16191 End 16192------------------------------------------------------------------ 16193 16194/(a)(?-n:(b))(c)/nB 16195------------------------------------------------------------------ 16196 Bra 16197 Bra 16198 a 16199 Ket 16200 Bra 16201 CBra 1 16202 b 16203 Ket 16204 Ket 16205 Bra 16206 c 16207 Ket 16208 Ket 16209 End 16210------------------------------------------------------------------ 16211 16212# ---------------------------------------------------------------------- 16213# These test the dangerous PCRE2_EXTRA_BAD_ESCAPE_IS_LITERAL option. 16214 16215/\j\x{z}\o{82}\L\uabcd\u\U\g{\g/B,\bad_escape_is_literal 16216** Unrecognized modifier '\' in '\bad_escape_is_literal' 16217 16218/\N{\c/IB,bad_escape_is_literal 16219------------------------------------------------------------------ 16220 Bra 16221 N{c 16222 Ket 16223 End 16224------------------------------------------------------------------ 16225Capture group count = 0 16226Extra options: bad_escape_is_literal 16227First code unit = 'N' 16228Last code unit = 'c' 16229Subject length lower bound = 3 16230 16231/[\j\x{z}\o\gAb\g]/B,bad_escape_is_literal 16232------------------------------------------------------------------ 16233 Bra 16234 [Abgjoxz{}] 16235 Ket 16236 End 16237------------------------------------------------------------------ 16238 16239/[Q-\N]/B,bad_escape_is_literal 16240Failed: error 150 at offset 5: invalid range in character class 16241 16242/[\s-_]/bad_escape_is_literal 16243Failed: error 150 at offset 3: invalid range in character class 16244 16245/[_-\s]/bad_escape_is_literal 16246Failed: error 150 at offset 5: invalid range in character class 16247 16248/[\B\R\X]/B 16249Failed: error 107 at offset 2: escape sequence is invalid in character class 16250 16251/[\B\R\X]/B,bad_escape_is_literal 16252Failed: error 107 at offset 2: escape sequence is invalid in character class 16253 16254/[A-\BP-\RV-\X]/B 16255Failed: error 107 at offset 4: escape sequence is invalid in character class 16256 16257/[A-\BP-\RV-\X]/B,bad_escape_is_literal 16258Failed: error 107 at offset 4: escape sequence is invalid in character class 16259 16260# ---------------------------------------------------------------------- 16261 16262/a\b(c/literal 16263 a\\b(c 16264 0: a\b(c 16265 16266/a\b(c/literal,caseless 16267 a\\b(c 16268 0: a\b(c 16269 a\\B(c 16270 0: a\B(c 16271 16272/a\b(c/literal,firstline 16273 XYYa\\b(c 16274 0: a\b(c 16275\= Expect no match 16276 X\na\\b(c 16277No match 16278 16279/a\b?c/literal,use_offset_limit 16280 XXXXa\\b?c\=offset_limit=4 16281 0: a\b?c 16282\= Expect no match 16283 XXXXa\\b?c\=offset_limit=3 16284No match 16285 16286/a\b(c/literal,anchored,endanchored 16287 a\\b(c 16288 0: a\b(c 16289\= Expect no match 16290 Xa\\b(c 16291No match 16292 a\\b(cX 16293No match 16294 Xa\\b(cX 16295No match 16296 16297//literal,extended 16298Failed: error 192 at offset 0: invalid option bits with PCRE2_LITERAL 16299 16300/a\b(c/literal,auto_callout,no_start_optimize 16301 XXXXa\\b(c 16302--->XXXXa\b(c 16303 +0 ^ a 16304 +0 ^ a 16305 +0 ^ a 16306 +0 ^ a 16307 +0 ^ a 16308 +1 ^^ \ 16309 +2 ^ ^ b 16310 +3 ^ ^ ( 16311 +4 ^ ^ c 16312 +5 ^ ^ End of pattern 16313 0: a\b(c 16314 16315/a\b(c/literal,auto_callout 16316 XXXXa\\b(c 16317--->XXXXa\b(c 16318 +0 ^ a 16319 +1 ^^ \ 16320 +2 ^ ^ b 16321 +3 ^ ^ ( 16322 +4 ^ ^ c 16323 +5 ^ ^ End of pattern 16324 0: a\b(c 16325 16326/(*CR)abc/literal 16327 (*CR)abc 16328 0: (*CR)abc 16329 16330/cat|dog/I,match_word 16331Capture group count = 0 16332Max lookbehind = 1 16333Extra options: match_word 16334Starting code units: c d 16335Subject length lower bound = 3 16336 the cat sat 16337 0: cat 16338\= Expect no match 16339 caterpillar 16340No match 16341 snowcat 16342No match 16343 syndicate 16344No match 16345 16346/(cat)|dog/I,match_line,literal 16347Capture group count = 0 16348Compile options: literal 16349Overall options: anchored literal 16350Extra options: match_line 16351First code unit = '(' 16352Subject length lower bound = 9 16353 (cat)|dog 16354 0: (cat)|dog 16355\= Expect no match 16356 the cat sat 16357No match 16358 caterpillar 16359No match 16360 snowcat 16361No match 16362 syndicate 16363No match 16364 16365/a whole line/match_line,multiline 16366 Rhubarb \na whole line\n custard 16367 0: a whole line 16368\= Expect no match 16369 Not a whole line 16370No match 16371 16372# Perl gets this wrong, failing to capture 'b' in group 1. 16373 16374/^(b+|a){1,2}?bc/ 16375 bbc 16376 0: bbc 16377 1: b 16378 16379# And again here, for the "babc" subject string. 16380 16381/^(b*|ba){1,2}?bc/ 16382 babc 16383 0: babc 16384 1: ba 16385 bbabc 16386 0: bbabc 16387 1: ba 16388 bababc 16389 0: bababc 16390 1: ba 16391\= Expect no match 16392 bababbc 16393No match 16394 babababc 16395No match 16396 16397/[[:digit:]-a]/ 16398Failed: error 150 at offset 10: invalid range in character class 16399 16400/[[:digit:]-[:print:]]/ 16401Failed: error 150 at offset 10: invalid range in character class 16402 16403/[\d-a]/ 16404Failed: error 150 at offset 3: invalid range in character class 16405 16406/[\H-z]/ 16407Failed: error 150 at offset 3: invalid range in character class 16408 16409/[\d-[:print:]]/ 16410Failed: error 150 at offset 3: invalid range in character class 16411 16412# Perl gets the second of these wrong, giving no match. 16413 16414"(?<=(a))\1?b"I 16415Capture group count = 1 16416Max back reference = 1 16417Max lookbehind = 1 16418Last code unit = 'b' 16419Subject length lower bound = 1 16420 ab 16421 0: b 16422 1: a 16423 aaab 16424 0: ab 16425 1: a 16426 16427"(?=(a))\1?b"I 16428Capture group count = 1 16429Max back reference = 1 16430First code unit = 'a' 16431Last code unit = 'b' 16432Subject length lower bound = 2 16433 ab 16434 0: ab 16435 1: a 16436 aaab 16437 0: ab 16438 1: a 16439 16440# JIT does not support callout_extra 16441 16442/(*NO_JIT)(a+)b/auto_callout,no_start_optimize,no_auto_possess 16443\= Expect no match 16444 aac\=callout_extra 16445New match attempt 16446--->aac 16447 +9 ^ ( 16448+10 ^ a+ 16449+12 ^ ^ ) 16450+13 ^ ^ b 16451Backtrack 16452--->aac 16453+12 ^^ ) 16454+13 ^^ b 16455Backtrack 16456No other matching paths 16457New match attempt 16458--->aac 16459 +9 ^ ( 16460+10 ^ a+ 16461+12 ^^ ) 16462+13 ^^ b 16463Backtrack 16464No other matching paths 16465New match attempt 16466--->aac 16467 +9 ^ ( 16468+10 ^ a+ 16469Backtrack 16470No other matching paths 16471New match attempt 16472--->aac 16473 +9 ^ ( 16474+10 ^ a+ 16475No match 16476 16477/(*NO_JIT)a+(?C'XXX')b/no_start_optimize,no_auto_possess 16478\= Expect no match 16479 aac\=callout_extra 16480New match attempt 16481Callout (15): 'XXX' 16482--->aac 16483 ^ ^ b 16484Backtrack 16485Callout (15): 'XXX' 16486--->aac 16487 ^^ b 16488Backtrack 16489No other matching paths 16490New match attempt 16491Callout (15): 'XXX' 16492--->aac 16493 ^^ b 16494No match 16495 16496/\n/firstline 16497 xyz\nabc 16498 0: \x0a 16499 16500/\nabc/firstline 16501 xyz\nabc 16502 0: \x0aabc 16503 16504/\x{0a}abc/firstline,newline=crlf 16505\= Expect no match 16506 xyz\r\nabc 16507No match 16508 16509/[abc]/firstline 16510\= Expect no match 16511 \na 16512No match 16513 16514# These tests are matched in test 1 as they are Perl compatible. Here we are 16515# looking at what does and does not get auto-possessified. 16516 16517/(?(DEFINE)(?<optional_a>a?))^(?&optional_a)a$/B 16518------------------------------------------------------------------ 16519 Bra 16520 Cond 16521 Cond false 16522 CBra 1 16523 a? 16524 Ket 16525 Ket 16526 ^ 16527 Recurse 16528 a 16529 $ 16530 Ket 16531 End 16532------------------------------------------------------------------ 16533 16534/(?(DEFINE)(?<optional_a>a?)X)^(?&optional_a)a$/B 16535------------------------------------------------------------------ 16536 Bra 16537 Cond 16538 Cond false 16539 CBra 1 16540 a? 16541 Ket 16542 X 16543 Ket 16544 ^ 16545 Recurse 16546 a 16547 $ 16548 Ket 16549 End 16550------------------------------------------------------------------ 16551 16552/^(a?)b(?1)a/B 16553------------------------------------------------------------------ 16554 Bra 16555 ^ 16556 CBra 1 16557 a? 16558 Ket 16559 b 16560 Recurse 16561 a 16562 Ket 16563 End 16564------------------------------------------------------------------ 16565 16566/^(a?)+b(?1)a/B 16567------------------------------------------------------------------ 16568 Bra 16569 ^ 16570 SCBra 1 16571 a? 16572 KetRmax 16573 b 16574 Recurse 16575 a 16576 Ket 16577 End 16578------------------------------------------------------------------ 16579 16580/^(a?)++b(?1)a/B 16581------------------------------------------------------------------ 16582 Bra 16583 ^ 16584 SCBraPos 1 16585 a? 16586 KetRpos 16587 b 16588 Recurse 16589 a 16590 Ket 16591 End 16592------------------------------------------------------------------ 16593 16594/^(a?)+b/B 16595------------------------------------------------------------------ 16596 Bra 16597 ^ 16598 SCBra 1 16599 a? 16600 KetRmax 16601 b 16602 Ket 16603 End 16604------------------------------------------------------------------ 16605 16606/(?=a+)a(a+)++b/B 16607------------------------------------------------------------------ 16608 Bra 16609 Assert 16610 a++ 16611 Ket 16612 a 16613 CBraPos 1 16614 a++ 16615 KetRpos 16616 b 16617 Ket 16618 End 16619------------------------------------------------------------------ 16620 16621/(?<=(?=.){4,5}x)/B 16622------------------------------------------------------------------ 16623 Bra 16624 Assert back 16625 Reverse 16626 Assert 16627 Any 16628 Ket 16629 Assert 16630 Any 16631 Ket 16632 Assert 16633 Any 16634 Ket 16635 Assert 16636 Any 16637 Ket 16638 Brazero 16639 Assert 16640 Any 16641 Ket 16642 x 16643 Ket 16644 Ket 16645 End 16646------------------------------------------------------------------ 16647 16648# Perl behaves differently with these when optimization is turned off 16649 16650/a(*PRUNE:X)bc|qq/mark,no_start_optimize 16651\= Expect no match 16652 axy 16653No match, mark = X 16654 16655/a(*THEN:X)bc|qq/mark,no_start_optimize 16656\= Expect no match 16657 axy 16658No match, mark = X 16659 16660/(?^x-i)AB/ 16661Failed: error 194 at offset 4: invalid hyphen in option setting 16662 16663/(?^-i)AB/ 16664Failed: error 194 at offset 3: invalid hyphen in option setting 16665 16666/(?x-i-i)/ 16667Failed: error 194 at offset 5: invalid hyphen in option setting 16668 16669/(?(?=^))b/I 16670Capture group count = 0 16671Last code unit = 'b' 16672Subject length lower bound = 1 16673 abc 16674 0: b 16675 16676/(?(?=^)|)b/I 16677Capture group count = 0 16678First code unit = 'b' 16679Subject length lower bound = 1 16680 abc 16681 0: b 16682 16683/(?(?=^)|^)b/I 16684Capture group count = 0 16685Compile options: <none> 16686Overall options: anchored 16687First code unit = 'b' 16688Subject length lower bound = 1 16689 bbc 16690 0: b 16691\= Expect no match 16692 abc 16693No match 16694 16695/(?(1)^|^())/I 16696Capture group count = 1 16697Max back reference = 1 16698May match empty string 16699Compile options: <none> 16700Overall options: anchored 16701Subject length lower bound = 0 16702 16703/(?(1)^())b/I 16704Capture group count = 1 16705Max back reference = 1 16706Last code unit = 'b' 16707Subject length lower bound = 1 16708 16709/(?(1)^())+b/I,aftertext 16710Capture group count = 1 16711Max back reference = 1 16712Last code unit = 'b' 16713Subject length lower bound = 1 16714 abc 16715 0: b 16716 0+ c 16717 16718/(?(1)^()|^)+b/I,aftertext 16719Capture group count = 1 16720Max back reference = 1 16721Compile options: <none> 16722Overall options: anchored 16723First code unit = 'b' 16724Subject length lower bound = 1 16725 bbc 16726 0: b 16727 0+ bc 16728\= Expect no match 16729 abc 16730No match 16731 16732/(?(1)^()|^)*b/I,aftertext 16733Capture group count = 1 16734Max back reference = 1 16735First code unit = 'b' 16736Subject length lower bound = 1 16737 bbc 16738 0: b 16739 0+ bc 16740 abc 16741 0: b 16742 0+ c 16743 xbc 16744 0: b 16745 0+ c 16746 16747/(?(1)^())+b/I,aftertext 16748Capture group count = 1 16749Max back reference = 1 16750Last code unit = 'b' 16751Subject length lower bound = 1 16752 abc 16753 0: b 16754 0+ c 16755 16756/(?(1)^a()|^a)+b/I,aftertext 16757Capture group count = 1 16758Max back reference = 1 16759Compile options: <none> 16760Overall options: anchored 16761First code unit = 'a' 16762Last code unit = 'b' 16763Subject length lower bound = 2 16764 abc 16765 0: ab 16766 0+ c 16767\= Expect no match 16768 bbc 16769No match 16770 16771/(?(1)^|^(a))+b/I,aftertext 16772Capture group count = 1 16773Max back reference = 1 16774Compile options: <none> 16775Overall options: anchored 16776Last code unit = 'b' 16777Subject length lower bound = 1 16778 abc 16779 0: ab 16780 0+ c 16781 1: a 16782\= Expect no match 16783 bbc 16784No match 16785 16786/(?(1)^a()|^a)*b/I,aftertext 16787Capture group count = 1 16788Max back reference = 1 16789Last code unit = 'b' 16790Subject length lower bound = 1 16791 abc 16792 0: ab 16793 0+ c 16794 bbc 16795 0: b 16796 0+ bc 16797 xbc 16798 0: b 16799 0+ c 16800 16801/a(b)c|xyz/g,allvector,replace=<$0> 16802 abcdefabcpqr\=ovector=4 16803 2: <abc>def<abc>pqr 16804 0: 6 9 16805 1: 7 8 16806 2: <unchanged> 16807 3: <unchanged> 16808 abxyz\=ovector=4 16809 1: ab<xyz> 16810 0: 2 5 16811 1: <unset> 16812 2: <unchanged> 16813 3: <unchanged> 16814 abcdefxyz\=ovector=4 16815 2: <abc>def<xyz> 16816 0: 6 9 16817 1: <unset> 16818 2: <unchanged> 16819 3: <unchanged> 16820 16821/a(b)c|xyz/allvector 16822 abcdef\=ovector=4 16823 0: abc 16824 1: b 16825 2: <unchanged> 16826 3: <unchanged> 16827 abxyz\=ovector=4 16828 0: xyz 16829 1: <unset> 16830 2: <unchanged> 16831 3: <unchanged> 16832 16833/a(b)c|xyz/g,replace=<$0>,substitute_callout 16834 abcdefabcpqr 16835 1(2) Old 0 3 "abc" New 0 5 "<abc>" 16836 2(2) Old 6 9 "abc" New 8 13 "<abc>" 16837 2: <abc>def<abc>pqr 16838 abxyzpqrabcxyz 16839 1(1) Old 2 5 "xyz" New 2 7 "<xyz>" 16840 2(2) Old 8 11 "abc" New 10 15 "<abc>" 16841 3(1) Old 11 14 "xyz" New 15 20 "<xyz>" 16842 3: ab<xyz>pqr<abc><xyz> 16843 12abc34xyz99abc55\=substitute_stop=2 16844 1(2) Old 2 5 "abc" New 2 7 "<abc>" 16845 2(1) Old 7 10 "xyz" New 9 14 "<xyz> STOPPED" 16846 2: 12<abc>34xyz99abc55 16847 12abc34xyz99abc55\=substitute_skip=1 16848 1(2) Old 2 5 "abc" New 2 7 "<abc> SKIPPED" 16849 2(1) Old 7 10 "xyz" New 7 12 "<xyz>" 16850 3(2) Old 12 15 "abc" New 14 19 "<abc>" 16851 3: 12abc34<xyz>99<abc>55 16852 12abc34xyz99abc55\=substitute_skip=2 16853 1(2) Old 2 5 "abc" New 2 7 "<abc>" 16854 2(1) Old 7 10 "xyz" New 9 14 "<xyz> SKIPPED" 16855 3(2) Old 12 15 "abc" New 14 19 "<abc>" 16856 3: 12<abc>34xyz99<abc>55 16857 16858/a(b)c|xyz/g,replace=<$0> 16859 abcdefabcpqr 16860 2: <abc>def<abc>pqr 16861 abxyzpqrabcxyz 16862 3: ab<xyz>pqr<abc><xyz> 16863 12abc34xyz\=substitute_stop=2 16864 1(2) Old 2 5 "abc" New 2 7 "<abc>" 16865 2(1) Old 7 10 "xyz" New 9 14 "<xyz> STOPPED" 16866 2: 12<abc>34xyz 16867 12abc34xyz\=substitute_skip=1 16868 1(2) Old 2 5 "abc" New 2 7 "<abc> SKIPPED" 16869 2(1) Old 7 10 "xyz" New 7 12 "<xyz>" 16870 2: 12abc34<xyz> 16871 16872/a(b)c|xyz/replace=<$0> 16873 abcdefabcpqr 16874 1: <abc>defabcpqr 16875 12abc34xyz\=substitute_skip=1 16876 1(2) Old 2 5 "abc" New 2 7 "<abc> SKIPPED" 16877 1: 12abc34xyz 16878 12abc34xyz\=substitute_stop=1 16879 1(2) Old 2 5 "abc" New 2 7 "<abc> STOPPED" 16880 1: 12abc34xyz 16881 16882/abc\rdef/ 16883 abc\ndef 16884No match 16885 16886/abc\rdef\x{0d}xyz/escaped_cr_is_lf 16887 abc\ndef\rxyz 16888 0: abc\x0adef\x0dxyz 16889\= Expect no match 16890 abc\ndef\nxyz 16891No match 16892 16893/(?(*ACCEPT)xxx)/ 16894Failed: error 128 at offset 2: assertion expected after (?( or (?(?C) 16895 16896/(?(*atomic:xx)xxx)/ 16897Failed: error 128 at offset 10: assertion expected after (?( or (?(?C) 16898 16899/(?(*script_run:xxx)zzz)/ 16900Failed: error 128 at offset 14: assertion expected after (?( or (?(?C) 16901 16902/foobar/ 16903 the foobar thing\=copy_matched_subject 16904 0: foobar 16905 the foobar thing\=copy_matched_subject,zero_terminate 16906 0: foobar 16907 16908/foobar/g 16909 the foobar thing foobar again\=copy_matched_subject 16910 0: foobar 16911 0: foobar 16912 16913/(*:XX)^abc/I 16914Capture group count = 0 16915Compile options: <none> 16916Overall options: anchored 16917First code unit = 'a' 16918Subject length lower bound = 3 16919 16920/(*COMMIT:XX)^abc/I 16921Capture group count = 0 16922Compile options: <none> 16923Overall options: anchored 16924First code unit = 'a' 16925Subject length lower bound = 3 16926 16927/(*ACCEPT:XX)^abc/I 16928Capture group count = 0 16929May match empty string 16930Subject length lower bound = 0 16931 16932/abc/replace=xyz 16933 abc\=null_context 16934 1: xyz 16935 16936/abc/replace=xyz,substitute_callout 16937 abc 16938 1(1) Old 0 3 "abc" New 0 3 "xyz" 16939 1: xyz 16940\= Expect error message 16941 abc\=null_context 16942** Replacement callouts are not supported with null_context. 16943 16944/\[()]{65535}()/expand 16945Failed: error 197 at offset 131071: too many capturing groups (maximum 65535) 16946 16947/\[()]{65535}(?<A>)/expand 16948Failed: error 197 at offset 131075: too many capturing groups (maximum 65535) 16949 16950/a(?:(*ACCEPT))??bc/ 16951 abc 16952 0: abc 16953 axy 16954 0: a 16955 16956/a(*ACCEPT)??bc/ 16957 abc 16958 0: abc 16959 axy 16960 0: a 16961 16962/a(*ACCEPT:XX)??bc/mark 16963 abc 16964 0: abc 16965 axy 16966 0: a 16967MK: XX 16968 16969/(*:\)?/ 16970Failed: error 109 at offset 5: quantifier does not follow a repeatable item 16971 16972/(*:\Q \E){5}/alt_verbnames 16973Failed: error 109 at offset 11: quantifier does not follow a repeatable item 16974 16975/(?=abc)/I 16976Capture group count = 0 16977May match empty string 16978First code unit = 'a' 16979Last code unit = 'c' 16980Subject length lower bound = 2 16981 16982/(?|(X)|(XY))\1abc/I 16983Capture group count = 1 16984Max back reference = 1 16985First code unit = 'X' 16986Last code unit = 'c' 16987Subject length lower bound = 4 16988 16989/(?|(a)|(bcde))(c)\2/I 16990Capture group count = 2 16991Max back reference = 2 16992Starting code units: a b 16993Last code unit = 'c' 16994Subject length lower bound = 3 16995 16996/(?|(a)|(bcde))(c)\1/I 16997Capture group count = 2 16998Max back reference = 1 16999Starting code units: a b 17000Last code unit = 'c' 17001Subject length lower bound = 2 17002 17003/(?|(?'A'a)|(?'A'bcde))(?'B'c)\k'B'(?'A')/I,dupnames 17004Capture group count = 3 17005Max back reference = 2 17006Named capture groups: 17007 A 1 17008 A 3 17009 B 2 17010Options: dupnames 17011Starting code units: a b 17012Last code unit = 'c' 17013Subject length lower bound = 3 17014 17015/(?|(?'A'a)|(?'A'bcde))(?'B'c)\k'A'(?'A')/I,dupnames 17016Capture group count = 3 17017Max back reference = 3 17018Named capture groups: 17019 A 1 17020 A 3 17021 B 2 17022Options: dupnames 17023Starting code units: a b 17024Last code unit = 'c' 17025Subject length lower bound = 2 17026 17027/((a|)+)+Z/I 17028Capture group count = 2 17029Starting code units: Z a 17030Last code unit = 'Z' 17031Subject length lower bound = 1 17032 17033/((?=a))[abcd]/I 17034Capture group count = 1 17035First code unit = 'a' 17036Subject length lower bound = 1 17037 17038/A(?:(*ACCEPT))?B/info 17039Capture group count = 0 17040First code unit = 'A' 17041Subject length lower bound = 1 17042 17043/(A(*ACCEPT)??B)C/ 17044 ABC 17045 0: ABC 17046 1: AB 17047 AXY 17048 0: A 17049 1: A 17050 17051/(?<=(?<=a)b)c.*/I 17052Capture group count = 0 17053Max lookbehind = 1 17054First code unit = 'c' 17055Subject length lower bound = 1 17056 abc\=ph 17057Partial match: c 17058\= Expect no match 17059 xbc\=ph 17060No match 17061 17062/(?<=ab)c.*/I 17063Capture group count = 0 17064Max lookbehind = 2 17065First code unit = 'c' 17066Subject length lower bound = 1 17067 abc\=ph 17068Partial match: c 17069\= Expect no match 17070 xbc\=ph 17071No match 17072 17073/(?<=a(?<=a|a)c)/I 17074Capture group count = 0 17075Max lookbehind = 2 17076May match empty string 17077Subject length lower bound = 0 17078 17079/(?<=a(?<=a|ba)c)/I 17080Capture group count = 0 17081Max lookbehind = 2 17082May match empty string 17083Subject length lower bound = 0 17084 17085/(?<=(?<=a)b)(?<!abcd)/I 17086Capture group count = 0 17087Max lookbehind = 4 17088May match empty string 17089Subject length lower bound = 0 17090 17091/(?<=(?<=a)b)(?<!abcd)(?<=(?<=a)bcde)/I 17092Capture group count = 0 17093Max lookbehind = 4 17094May match empty string 17095Subject length lower bound = 0 17096 17097# Addition overflow 17098/( {32742} {42})(?<!\1{65481})/ 17099Failed: error 187 at offset 15: lookbehind assertion is too long 17100 17101# Multiplication overflow 17102/(X{65535})(?<=\1{32770})/ 17103Failed: error 187 at offset 10: lookbehind assertion is too long 17104 17105# ---- Non-atomic assertion tests ---- 17106 17107# Expect error: not allowed as a condition 17108/(?(*napla:xx)bc)/ 17109Failed: error 198 at offset 9: atomic assertion expected after (?( or (?(?C) 17110 17111/\A(*pla:.*\b(\w++))(?>.*?\b\1\b){3}/ 17112 word1 word3 word1 word2 word3 word2 word2 word1 word3 word4 17113No match 17114 17115/\A(*napla:.*\b(\w++))(?>.*?\b\1\b){3}/ 17116 word1 word3 word1 word2 word3 word2 word2 word1 word3 word4 17117 0: word1 word3 word1 word2 word3 word2 word2 word1 word3 17118 1: word3 17119 17120/\A(?*.*\b(\w++))(?>.*?\b\1\b){3}/ 17121 word1 word3 word1 word2 word3 word2 word2 word1 word3 word4 17122 0: word1 word3 word1 word2 word3 word2 word2 word1 word3 17123 1: word3 17124 17125/(*plb:(.)..|(.)...)(\1|\2)/ 17126 abcdb\=offset=4 17127 0: b 17128 1: b 17129 2: <unset> 17130 3: b 17131 abcda\=offset=4 17132No match 17133 17134/(*naplb:(.)..|(.)...)(\1|\2)/ 17135 abcdb\=offset=4 17136 0: b 17137 1: b 17138 2: <unset> 17139 3: b 17140 abcda\=offset=4 17141 0: a 17142 1: <unset> 17143 2: a 17144 3: a 17145 17146/(?<*(.)..|(.)...)(\1|\2)/ 17147 abcdb\=offset=4 17148 0: b 17149 1: b 17150 2: <unset> 17151 3: b 17152 abcda\=offset=4 17153 0: a 17154 1: <unset> 17155 2: a 17156 3: a 17157 17158/(*non_atomic_positive_lookahead:ab)/B 17159------------------------------------------------------------------ 17160 Bra 17161 Non-atomic assert 17162 ab 17163 Ket 17164 Ket 17165 End 17166------------------------------------------------------------------ 17167 17168/(*non_atomic_positive_lookbehind:ab)/B 17169------------------------------------------------------------------ 17170 Bra 17171 Non-atomic assert back 17172 Reverse 17173 ab 17174 Ket 17175 Ket 17176 End 17177------------------------------------------------------------------ 17178 17179/(*pla:ab+)/B 17180------------------------------------------------------------------ 17181 Bra 17182 Assert 17183 a 17184 b++ 17185 Ket 17186 Ket 17187 End 17188------------------------------------------------------------------ 17189 17190/(*napla:ab+)/B 17191------------------------------------------------------------------ 17192 Bra 17193 Non-atomic assert 17194 a 17195 b+ 17196 Ket 17197 Ket 17198 End 17199------------------------------------------------------------------ 17200 17201/(*napla:)+/ 17202 17203/(*naplb:)+/ 17204 17205/(*napla:^x|^y)/I 17206Capture group count = 0 17207May match empty string 17208Compile options: <none> 17209Overall options: anchored 17210Starting code units: x y 17211Subject length lower bound = 1 17212 17213/(*napla:abc|abd)/I 17214Capture group count = 0 17215May match empty string 17216First code unit = 'a' 17217Subject length lower bound = 1 17218 17219/(*napla:a|(.)(*ACCEPT)zz)\1../ 17220 abcd 17221 0: abc 17222 1: a 17223 17224/(*napla:a(*ACCEPT)zz|(.))\1../ 17225 abcd 17226 0: bcd 17227 1: b 17228 17229/(*napla:a|(*COMMIT)(.))\1\1/ 17230 aabc 17231 0: aa 17232 1: a 17233\= Expect no match 17234 abbc 17235No match 17236 17237/(*napla:a|(.))\1\1/ 17238 aabc 17239 0: aa 17240 1: a 17241 abbc 17242 0: bb 17243 1: b 17244 17245# ---- 17246 17247# Expect error (recursion => not fixed length) 17248/(\2)((?=(?<=\1)))/ 17249Failed: error 125 at offset 8: lookbehind assertion is not fixed length 17250 17251/c*+(?<=[bc])/ 17252 abc\=ph 17253Partial match: c 17254 ab\=ph 17255Partial match: 17256 abc\=ps 17257 0: c 17258 ab\=ps 17259 0: 17260 17261/c++(?<=[bc])/ 17262 abc\=ph 17263Partial match: c 17264 ab\=ph 17265Partial match: 17266 17267/(?<=(?=.(?<=x)))/ 17268 abx 17269 0: 17270 ab\=ph 17271Partial match: 17272 bxyz 17273 0: 17274 xyz 17275 0: 17276 17277/\z/ 17278 abc\=ph 17279Partial match: 17280 abc\=ps 17281 0: 17282 17283/\Z/ 17284 abc\=ph 17285Partial match: 17286 abc\=ps 17287 0: 17288 abc\n\=ph 17289Partial match: \x0a 17290 abc\n\=ps 17291 0: 17292 17293/(?![ab]).*/ 17294 ab\=ph 17295Partial match: 17296 17297/c*+/ 17298 ab\=ph,offset=2 17299Partial match: 17300 17301/\A\s*(a|(?:[^`]{28500}){4})/I 17302Capture group count = 1 17303Max lookbehind = 1 17304Compile options: <none> 17305Overall options: anchored 17306Subject length lower bound = 1 17307 a 17308 0: a 17309 1: a 17310 17311/\A\s*((?:[^`]{28500}){4})/I 17312Capture group count = 1 17313Max lookbehind = 1 17314Compile options: <none> 17315Overall options: anchored 17316Subject length lower bound = 65535 17317 17318/\A\s*((?:[^`]{28500}){4}|a)/I 17319Capture group count = 1 17320Max lookbehind = 1 17321Compile options: <none> 17322Overall options: anchored 17323Subject length lower bound = 1 17324 a 17325 0: a 17326 1: a 17327 17328/(?<A>a)(?(<A>)b)((?<=b).*)/B 17329------------------------------------------------------------------ 17330 Bra 17331 CBra 1 17332 a 17333 Ket 17334 Cond 17335 1 Cond ref 17336 b 17337 Ket 17338 CBra 2 17339 Assert back 17340 Reverse 17341 b 17342 Ket 17343 Any*+ 17344 Ket 17345 Ket 17346 End 17347------------------------------------------------------------------ 17348 17349/(?(1)b)((?<=b).*)/B 17350------------------------------------------------------------------ 17351 Bra 17352 Cond 17353 1 Cond ref 17354 b 17355 Ket 17356 CBra 1 17357 Assert back 17358 Reverse 17359 b 17360 Ket 17361 Any*+ 17362 Ket 17363 Ket 17364 End 17365------------------------------------------------------------------ 17366 17367/(?(R1)b)((?<=b).*)/B 17368------------------------------------------------------------------ 17369 Bra 17370 Cond 17371 Cond recurse 1 17372 b 17373 Ket 17374 CBra 1 17375 Assert back 17376 Reverse 17377 b 17378 Ket 17379 Any*+ 17380 Ket 17381 Ket 17382 End 17383------------------------------------------------------------------ 17384 17385/(?(DEFINE)b)((?<=b).*)/B 17386------------------------------------------------------------------ 17387 Bra 17388 Cond 17389 Cond false 17390 b 17391 Ket 17392 CBra 1 17393 Assert back 17394 Reverse 17395 b 17396 Ket 17397 Any*+ 17398 Ket 17399 Ket 17400 End 17401------------------------------------------------------------------ 17402 17403/(?(VERSION=10.4)b)((?<=b).*)/B 17404------------------------------------------------------------------ 17405 Bra 17406 Cond 17407 Cond false 17408 b 17409 Ket 17410 CBra 1 17411 Assert back 17412 Reverse 17413 b 17414 Ket 17415 Any*+ 17416 Ket 17417 Ket 17418 End 17419------------------------------------------------------------------ 17420 17421/[aA]b[cC]/IB 17422------------------------------------------------------------------ 17423 Bra 17424 /i a 17425 b 17426 /i c 17427 Ket 17428 End 17429------------------------------------------------------------------ 17430Capture group count = 0 17431First code unit = 'a' (caseless) 17432Last code unit = 'c' (caseless) 17433Subject length lower bound = 3 17434 17435/[cc]abcd/I 17436Capture group count = 0 17437First code unit = 'c' 17438Last code unit = 'd' 17439Subject length lower bound = 5 17440 17441/[Cc]abcd/I 17442Capture group count = 0 17443First code unit = 'C' (caseless) 17444Last code unit = 'd' 17445Subject length lower bound = 5 17446 17447/[c]abcd/I 17448Capture group count = 0 17449First code unit = 'c' 17450Last code unit = 'd' 17451Subject length lower bound = 5 17452 17453/(?:c|C)abcd/I 17454Capture group count = 0 17455First code unit = 'C' (caseless) 17456Last code unit = 'd' 17457Subject length lower bound = 5 17458 17459/(a)?a/I 17460Capture group count = 1 17461Starting code units: a 17462Last code unit = 'a' 17463Subject length lower bound = 1 17464 manm 17465 0: a 17466 17467/^(?|(\*)(*napla:\S*_(\2?+.+))|(\w)(?=\S*_(\2?+\1)))+_\2$/ 17468 *abc_12345abc 17469 0: *abc_12345abc 17470 1: c 17471 2: 12345abc 17472 17473/^(?|(\*)(*napla:\S*_(\3?+.+))|(\w)(?=\S*_((\2?+\1))))+_\2$/ 17474 *abc_12345abc 17475 0: *abc_12345abc 17476 1: c 17477 2: 12345abc 17478 3: 12345abc 17479 17480/^((\1+)(?C)|\d)+133X$/ 17481 111133X\=callout_capture 17482Callout 0: last capture = 2 17483 1: 1 17484 2: 111 17485--->111133X 17486 ^ ^ | 17487Callout 0: last capture = 2 17488 1: 3 17489 2: 3 17490--->111133X 17491 ^ ^ | 17492Callout 0: last capture = 2 17493 1: 1 17494 2: 11 17495--->111133X 17496 ^ ^ | 17497Callout 0: last capture = 2 17498 1: 3 17499 2: 3 17500--->111133X 17501 ^ ^ | 17502 0: 111133X 17503 1: 11 17504 2: 11 17505 17506/abc/replace=xyz,substitute_replacement_only 17507 123abc456 17508 1: xyz 17509 17510/a(?<ONE>b)c(?<TWO>d)e/g,replace=X$ONE+${TWO}Z,substitute_replacement_only 17511 "abcde-abcde-" 17512 2: Xb+dZXb+dZ 17513 17514/a(b)c|xyz/g,replace=<$0>,substitute_callout,substitute_replacement_only 17515 abcdefabcpqr 17516 1(2) Old 0 3 "abc" New 0 5 "<abc>" 17517 2(2) Old 6 9 "abc" New 5 10 "<abc>" 17518 2: <abc><abc> 17519 abxyzpqrabcxyz 17520 1(1) Old 2 5 "xyz" New 0 5 "<xyz>" 17521 2(2) Old 8 11 "abc" New 5 10 "<abc>" 17522 3(1) Old 11 14 "xyz" New 10 15 "<xyz>" 17523 3: <xyz><abc><xyz> 17524 12abc34xyz99abc55\=substitute_stop=2 17525 1(2) Old 2 5 "abc" New 0 5 "<abc>" 17526 2(1) Old 7 10 "xyz" New 5 10 "<xyz> STOPPED" 17527 2: <abc> 17528 12abc34xyz99abc55\=substitute_skip=1 17529 1(2) Old 2 5 "abc" New 0 5 "<abc> SKIPPED" 17530 2(1) Old 7 10 "xyz" New 0 5 "<xyz>" 17531 3(2) Old 12 15 "abc" New 5 10 "<abc>" 17532 3: <xyz><abc> 17533 12abc34xyz99abc55\=substitute_skip=2 17534 1(2) Old 2 5 "abc" New 0 5 "<abc>" 17535 2(1) Old 7 10 "xyz" New 5 10 "<xyz> SKIPPED" 17536 3(2) Old 12 15 "abc" New 5 10 "<abc>" 17537 3: <abc><abc> 17538 17539/a(..)d/replace=>$1<,substitute_matched 17540 xyzabcdxyzabcdxyz 17541 1: xyz>bc<xyzabcdxyz 17542 xyzabcdxyzabcdxyz\=ovector=2 17543 1: xyz>bc<xyzabcdxyz 17544\= Expect error 17545 xyzabcdxyzabcdxyz\=ovector=1 17546Failed: error -54 at offset 3 in replacement: requested value is not available 17547 17548/a(..)d/g,replace=>$1<,substitute_matched 17549 xyzabcdxyzabcdxyz 17550 2: xyz>bc<xyz>bc<xyz 17551 xyzabcdxyzabcdxyz\=ovector=2 17552 2: xyz>bc<xyz>bc<xyz 17553\= Expect error 17554 xyzabcdxyzabcdxyz\=ovector=1 17555Failed: error -54 at offset 3 in replacement: requested value is not available 17556 xyzabcdxyzabcdxyz\=ovector=1,substitute_unset_empty 17557Failed: error -54 at offset 3 in replacement: requested value is not available 17558 17559/55|a(..)d/g,replace=>$1<,substitute_matched 17560 xyz55abcdxyzabcdxyz\=ovector=2,substitute_unset_empty 17561 3: xyz><>bc<xyz>bc<xyz 17562\= Expect error 17563 xyz55abcdxyzabcdxyz\=ovector=2 17564Failed: error -55 at offset 3 in replacement: requested value is not set 17565 17566/55|a(..)d/replace=>$1<,substitute_matched 17567 xyz55abcdxyzabcdxyz\=ovector=2,substitute_unset_empty 17568 1: xyz><abcdxyzabcdxyz 17569 17570/55|a(..)d/replace=>$1< 17571 xyz55abcdxyzabcdxyz\=ovector=2,substitute_unset_empty 17572 1: xyz><abcdxyzabcdxyz 17573 17574/55|a(..)d/g,replace=>$1< 17575 xyz55abcdxyzabcdxyz\=ovector=2,substitute_unset_empty 17576 3: xyz><>bc<xyz>bc<xyz 17577 17578# Expect non-fixed-length error 17579 17580"(?<=X(?(DEFINE)(.*))(?1))." 17581Failed: error 125 at offset 0: lookbehind assertion is not fixed length 17582 17583/\sxxx\s/tables=1 17584\= Expect no match 17585 AB\x{85}xxx\x{a0}XYZ 17586No match 17587 17588/\sxxx\s/tables=2 17589 AB\x{85}xxx\x{a0}XYZ 17590 0: \x85xxx\xa0 17591 17592/^\w+/tables=2 17593 École 17594 0: \xc3 17595 17596/^\w+/tables=3 17597** 'Tables = 3' is invalid: binary tables have not been loaded 17598 École 17599 17600#loadtables ./testbtables 17601 17602/^\w+/tables=3 17603 École 17604 0: \xc3 17605 17606/"(*MARK:>" 00 "<).."/hex,mark,no_start_optimize 17607 AB 17608 0: AB 17609MK: >\x00< 17610 A\=ph 17611Partial match, mark=>\x00<: A 17612\= Expect no match 17613 A 17614No match, mark = >\x00< 17615 17616/"(*MARK:>" 00 "<).(?C1)."/hex,mark,no_start_optimize 17617 AB 17618--->AB 17619 1 ^^ . 17620Latest Mark: >\x00< 17621 0: AB 17622MK: >\x00< 17623 17624/(?(VERSION=0.0/ 17625Failed: error 179 at offset 14: syntax error or number too big in (?(VERSION condition 17626 17627# Perl has made \K in lookarounds an error. At the moment PCRE2 still accepts. 17628 17629/(?=a\Kb)ab/ 17630 ab 17631 0: b 17632 17633/(?!a\Kb)ac/ 17634 ac 17635 0: ac 17636 17637/^abc(?<=b\Kc)d/ 17638 abcd 17639 0: cd 17640 17641/^abc(?<!b\Kq)d/ 17642 abcd 17643 0: abcd 17644 17645# --------- 17646 17647# End of testinput2 17648Error -70: PCRE2_ERROR_BADDATA (unknown error number) 17649Error -62: bad serialized data 17650Error -2: partial match 17651Error -1: no match 17652Error 0: PCRE2_ERROR_BADDATA (unknown error number) 17653Error 100: no error 17654Error 101: \ at end of pattern 17655Error 191: PCRE2_EXTRA_ALLOW_SURROGATE_ESCAPES is not allowed in UTF-16 mode 17656Error 200: PCRE2_ERROR_BADDATA (unknown error number) 17657
