1/-- This set of tests is not Perl-compatible. It checks on special features 2 of PCRE's API, error diagnostics, and the compiled code of some patterns. 3 It also checks the non-Perl syntax the PCRE supports (Python, .NET, 4 Oniguruma). Finally, there are some tests where PCRE and Perl differ, 5 either because PCRE 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, and if Unicode Property Support is needed, use test 7. --/ 10 11/(a)b|/I 12Capturing subpattern count = 1 13No options 14No first char 15No need char 16 17/abc/I 18Capturing subpattern count = 0 19No options 20First char = 'a' 21Need char = 'c' 22 abc 23 0: abc 24 defabc 25 0: abc 26 \Aabc 27 0: abc 28 *** Failers 29No match 30 \Adefabc 31No match 32 ABC 33No match 34 35/^abc/I 36Capturing subpattern count = 0 37Options: anchored 38No first char 39No need char 40 abc 41 0: abc 42 \Aabc 43 0: abc 44 *** Failers 45No match 46 defabc 47No match 48 \Adefabc 49No match 50 51/a+bc/I 52Capturing subpattern count = 0 53No options 54First char = 'a' 55Need char = 'c' 56 57/a*bc/I 58Capturing subpattern count = 0 59No options 60No first char 61Need char = 'c' 62 63/a{3}bc/I 64Capturing subpattern count = 0 65No options 66First char = 'a' 67Need char = 'c' 68 69/(abc|a+z)/I 70Capturing subpattern count = 1 71No options 72First char = 'a' 73No need char 74 75/^abc$/I 76Capturing subpattern count = 0 77Options: anchored 78No first char 79No need char 80 abc 81 0: abc 82 *** Failers 83No match 84 def\nabc 85No match 86 87/ab\idef/X 88Failed: unrecognized character follows \ at offset 3 89 90/(?X)ab\idef/X 91Failed: unrecognized character follows \ at offset 7 92 93/x{5,4}/ 94Failed: numbers out of order in {} quantifier at offset 5 95 96/z{65536}/ 97Failed: number too big in {} quantifier at offset 7 98 99/[abcd/ 100Failed: missing terminating ] for character class at offset 5 101 102/(?X)[\B]/ 103Failed: invalid escape sequence in character class at offset 6 104 105/(?X)[\R]/ 106Failed: invalid escape sequence in character class at offset 6 107 108/(?X)[\X]/ 109Failed: invalid escape sequence in character class at offset 6 110 111/[\B]/BZ 112------------------------------------------------------------------ 113 Bra 114 B 115 Ket 116 End 117------------------------------------------------------------------ 118 119/[\R]/BZ 120------------------------------------------------------------------ 121 Bra 122 R 123 Ket 124 End 125------------------------------------------------------------------ 126 127/[\X]/BZ 128------------------------------------------------------------------ 129 Bra 130 X 131 Ket 132 End 133------------------------------------------------------------------ 134 135/[z-a]/ 136Failed: range out of order in character class at offset 3 137 138/^*/ 139Failed: nothing to repeat at offset 1 140 141/(abc/ 142Failed: missing ) at offset 4 143 144/(?# abc/ 145Failed: missing ) after comment at offset 7 146 147/(?z)abc/ 148Failed: unrecognized character after (? or (?- at offset 2 149 150/.*b/I 151Capturing subpattern count = 0 152No options 153First char at start or follows newline 154Need char = 'b' 155 156/.*?b/I 157Capturing subpattern count = 0 158No options 159First char at start or follows newline 160Need char = 'b' 161 162/cat|dog|elephant/I 163Capturing subpattern count = 0 164No options 165No first char 166No need char 167 this sentence eventually mentions a cat 168 0: cat 169 this sentences rambles on and on for a while and then reaches elephant 170 0: elephant 171 172/cat|dog|elephant/IS 173Capturing subpattern count = 0 174No options 175No first char 176No need char 177Subject length lower bound = 3 178Starting byte set: c d e 179 this sentence eventually mentions a cat 180 0: cat 181 this sentences rambles on and on for a while and then reaches elephant 182 0: elephant 183 184/cat|dog|elephant/IiS 185Capturing subpattern count = 0 186Options: caseless 187No first char 188No need char 189Subject length lower bound = 3 190Starting byte set: C D E c d e 191 this sentence eventually mentions a CAT cat 192 0: CAT 193 this sentences rambles on and on for a while to elephant ElePhant 194 0: elephant 195 196/a|[bcd]/IS 197Capturing subpattern count = 0 198No options 199No first char 200No need char 201Subject length lower bound = 1 202Starting byte set: a b c d 203 204/(a|[^\dZ])/IS 205Capturing subpattern count = 1 206No options 207No first char 208No need char 209Subject length lower bound = 1 210Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a 211 \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19 212 \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / : ; < = > 213 ? @ 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 214 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 215 \x84 \x85 \x86 \x87 \x88 \x89 \x8a \x8b \x8c \x8d \x8e \x8f \x90 \x91 \x92 216 \x93 \x94 \x95 \x96 \x97 \x98 \x99 \x9a \x9b \x9c \x9d \x9e \x9f \xa0 \xa1 217 \xa2 \xa3 \xa4 \xa5 \xa6 \xa7 \xa8 \xa9 \xaa \xab \xac \xad \xae \xaf \xb0 218 \xb1 \xb2 \xb3 \xb4 \xb5 \xb6 \xb7 \xb8 \xb9 \xba \xbb \xbc \xbd \xbe \xbf 219 \xc0 \xc1 \xc2 \xc3 \xc4 \xc5 \xc6 \xc7 \xc8 \xc9 \xca \xcb \xcc \xcd \xce 220 \xcf \xd0 \xd1 \xd2 \xd3 \xd4 \xd5 \xd6 \xd7 \xd8 \xd9 \xda \xdb \xdc \xdd 221 \xde \xdf \xe0 \xe1 \xe2 \xe3 \xe4 \xe5 \xe6 \xe7 \xe8 \xe9 \xea \xeb \xec 222 \xed \xee \xef \xf0 \xf1 \xf2 \xf3 \xf4 \xf5 \xf6 \xf7 \xf8 \xf9 \xfa \xfb 223 \xfc \xfd \xfe \xff 224 225/(a|b)*[\s]/IS 226Capturing subpattern count = 1 227No options 228No first char 229No need char 230Subject length lower bound = 1 231Starting byte set: \x09 \x0a \x0c \x0d \x20 a b 232 233/(ab\2)/ 234Failed: reference to non-existent subpattern at offset 6 235 236/{4,5}abc/ 237Failed: nothing to repeat at offset 4 238 239/(a)(b)(c)\2/I 240Capturing subpattern count = 3 241Max back reference = 2 242No options 243First char = 'a' 244Need char = 'c' 245 abcb 246 0: abcb 247 1: a 248 2: b 249 3: c 250 \O0abcb 251Matched, but too many substrings 252 \O3abcb 253Matched, but too many substrings 254 0: abcb 255 \O6abcb 256Matched, but too many substrings 257 0: abcb 258 1: a 259 \O9abcb 260Matched, but too many substrings 261 0: abcb 262 1: a 263 2: b 264 \O12abcb 265 0: abcb 266 1: a 267 2: b 268 3: c 269 270/(a)bc|(a)(b)\2/I 271Capturing subpattern count = 3 272Max back reference = 2 273No options 274First char = 'a' 275No need char 276 abc 277 0: abc 278 1: a 279 \O0abc 280Matched, but too many substrings 281 \O3abc 282Matched, but too many substrings 283 0: abc 284 \O6abc 285 0: abc 286 1: a 287 aba 288 0: aba 289 1: <unset> 290 2: a 291 3: b 292 \O0aba 293Matched, but too many substrings 294 \O3aba 295Matched, but too many substrings 296 0: aba 297 \O6aba 298Matched, but too many substrings 299 0: aba 300 1: <unset> 301 \O9aba 302Matched, but too many substrings 303 0: aba 304 1: <unset> 305 2: a 306 \O12aba 307 0: aba 308 1: <unset> 309 2: a 310 3: b 311 312/abc$/IE 313Capturing subpattern count = 0 314Options: dollar_endonly 315First char = 'a' 316Need char = 'c' 317 abc 318 0: abc 319 *** Failers 320No match 321 abc\n 322No match 323 abc\ndef 324No match 325 326/(a)(b)(c)(d)(e)\6/ 327Failed: reference to non-existent subpattern at offset 17 328 329/the quick brown fox/I 330Capturing subpattern count = 0 331No options 332First char = 't' 333Need char = 'x' 334 the quick brown fox 335 0: the quick brown fox 336 this is a line with the quick brown fox 337 0: the quick brown fox 338 339/the quick brown fox/IA 340Capturing subpattern count = 0 341Options: anchored 342No first char 343No need char 344 the quick brown fox 345 0: the quick brown fox 346 *** Failers 347No match 348 this is a line with the quick brown fox 349No match 350 351/ab(?z)cd/ 352Failed: unrecognized character after (? or (?- at offset 4 353 354/^abc|def/I 355Capturing subpattern count = 0 356No options 357No first char 358No need char 359 abcdef 360 0: abc 361 abcdef\B 362 0: def 363 364/.*((abc)$|(def))/I 365Capturing subpattern count = 3 366No options 367First char at start or follows newline 368No need char 369 defabc 370 0: defabc 371 1: abc 372 2: abc 373 \Zdefabc 374 0: def 375 1: def 376 2: <unset> 377 3: def 378 379/)/ 380Failed: unmatched parentheses at offset 0 381 382/a[]b/ 383Failed: missing terminating ] for character class at offset 4 384 385/[^aeiou ]{3,}/I 386Capturing subpattern count = 0 387No options 388No first char 389No need char 390 co-processors, and for 391 0: -pr 392 393/<.*>/I 394Capturing subpattern count = 0 395No options 396First char = '<' 397Need char = '>' 398 abc<def>ghi<klm>nop 399 0: <def>ghi<klm> 400 401/<.*?>/I 402Capturing subpattern count = 0 403No options 404First char = '<' 405Need char = '>' 406 abc<def>ghi<klm>nop 407 0: <def> 408 409/<.*>/IU 410Capturing subpattern count = 0 411Options: ungreedy 412First char = '<' 413Need char = '>' 414 abc<def>ghi<klm>nop 415 0: <def> 416 417/(?U)<.*>/I 418Capturing subpattern count = 0 419Options: ungreedy 420First char = '<' 421Need char = '>' 422 abc<def>ghi<klm>nop 423 0: <def> 424 425/<.*?>/IU 426Capturing subpattern count = 0 427Options: ungreedy 428First char = '<' 429Need char = '>' 430 abc<def>ghi<klm>nop 431 0: <def>ghi<klm> 432 433/={3,}/IU 434Capturing subpattern count = 0 435Options: ungreedy 436First char = '=' 437Need char = '=' 438 abc========def 439 0: === 440 441/(?U)={3,}?/I 442Capturing subpattern count = 0 443Options: ungreedy 444First char = '=' 445Need char = '=' 446 abc========def 447 0: ======== 448 449/(?<!bar|cattle)foo/I 450Capturing subpattern count = 0 451No options 452First char = 'f' 453Need char = 'o' 454Max lookbehind = 6 455 foo 456 0: foo 457 catfoo 458 0: foo 459 *** Failers 460No match 461 the barfoo 462No match 463 and cattlefoo 464No match 465 466/(?<=a+)b/ 467Failed: lookbehind assertion is not fixed length at offset 6 468 469/(?<=aaa|b{0,3})b/ 470Failed: lookbehind assertion is not fixed length at offset 14 471 472/(?<!(foo)a\1)bar/ 473Failed: lookbehind assertion is not fixed length at offset 12 474 475/(?i)abc/I 476Capturing subpattern count = 0 477Options: caseless 478First char = 'a' (caseless) 479Need char = 'c' (caseless) 480 481/(a|(?m)a)/I 482Capturing subpattern count = 1 483No options 484First char = 'a' 485No need char 486 487/(?i)^1234/I 488Capturing subpattern count = 0 489Options: anchored caseless 490No first char 491No need char 492 493/(^b|(?i)^d)/I 494Capturing subpattern count = 1 495Options: anchored 496No first char 497No need char 498 499/(?s).*/I 500Capturing subpattern count = 0 501Options: anchored dotall 502No first char 503No need char 504 505/[abcd]/IS 506Capturing subpattern count = 0 507No options 508No first char 509No need char 510Subject length lower bound = 1 511Starting byte set: a b c d 512 513/(?i)[abcd]/IS 514Capturing subpattern count = 0 515Options: caseless 516No first char 517No need char 518Subject length lower bound = 1 519Starting byte set: A B C D a b c d 520 521/(?m)[xy]|(b|c)/IS 522Capturing subpattern count = 1 523Options: multiline 524No first char 525No need char 526Subject length lower bound = 1 527Starting byte set: b c x y 528 529/(^a|^b)/Im 530Capturing subpattern count = 1 531Options: multiline 532First char at start or follows newline 533No need char 534 535/(?i)(^a|^b)/Im 536Capturing subpattern count = 1 537Options: caseless multiline 538First char at start or follows newline 539No need char 540 541/(a)(?(1)a|b|c)/ 542Failed: conditional group contains more than two branches at offset 13 543 544/(?(?=a)a|b|c)/ 545Failed: conditional group contains more than two branches at offset 12 546 547/(?(1a)/ 548Failed: missing ) at offset 6 549 550/(?(1a))/ 551Failed: reference to non-existent subpattern at offset 6 552 553/(?(?i))/ 554Failed: assertion expected after (?( at offset 3 555 556/(?(abc))/ 557Failed: reference to non-existent subpattern at offset 7 558 559/(?(?<ab))/ 560Failed: syntax error in subpattern name (missing terminator) at offset 7 561 562/((?s)blah)\s+\1/I 563Capturing subpattern count = 1 564Max back reference = 1 565No options 566First char = 'b' 567Need char = 'h' 568 569/((?i)blah)\s+\1/I 570Capturing subpattern count = 1 571Max back reference = 1 572No options 573First char = 'b' (caseless) 574Need char = 'h' (caseless) 575 576/((?i)b)/IDZS 577------------------------------------------------------------------ 578 Bra 579 CBra 1 580 /i b 581 Ket 582 Ket 583 End 584------------------------------------------------------------------ 585Capturing subpattern count = 1 586No options 587First char = 'b' (caseless) 588No need char 589Subject length lower bound = 1 590No set of starting bytes 591 592/(a*b|(?i:c*(?-i)d))/IS 593Capturing subpattern count = 1 594No options 595No first char 596No need char 597Subject length lower bound = 1 598Starting byte set: C a b c d 599 600/a$/I 601Capturing subpattern count = 0 602No options 603First char = 'a' 604No need char 605 a 606 0: a 607 a\n 608 0: a 609 *** Failers 610No match 611 \Za 612No match 613 \Za\n 614No match 615 616/a$/Im 617Capturing subpattern count = 0 618Options: multiline 619First char = 'a' 620No need char 621 a 622 0: a 623 a\n 624 0: a 625 \Za\n 626 0: a 627 *** Failers 628No match 629 \Za 630No match 631 632/\Aabc/Im 633Capturing subpattern count = 0 634Options: anchored multiline 635No first char 636No need char 637 638/^abc/Im 639Capturing subpattern count = 0 640Options: multiline 641First char at start or follows newline 642Need char = 'c' 643 644/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/I 645Capturing subpattern count = 5 646Options: anchored 647No first char 648No need char 649 aaaaabbbbbcccccdef 650 0: aaaaabbbbbcccccdef 651 1: aaaaabbbbbcccccdef 652 2: aaaaa 653 3: b 654 4: bbbbccccc 655 5: def 656 657/(?<=foo)[ab]/IS 658Capturing subpattern count = 0 659No options 660No first char 661No need char 662Max lookbehind = 3 663Subject length lower bound = 1 664Starting byte set: a b 665 666/(?<!foo)(alpha|omega)/IS 667Capturing subpattern count = 1 668No options 669No first char 670Need char = 'a' 671Max lookbehind = 3 672Subject length lower bound = 5 673Starting byte set: a o 674 675/(?!alphabet)[ab]/IS 676Capturing subpattern count = 0 677No options 678No first char 679No need char 680Subject length lower bound = 1 681Starting byte set: a b 682 683/(?<=foo\n)^bar/Im 684Capturing subpattern count = 0 685Contains explicit CR or LF match 686Options: multiline 687No first char 688Need char = 'r' 689Max lookbehind = 4 690 foo\nbarbar 691 0: bar 692 ***Failers 693No match 694 rhubarb 695No match 696 barbell 697No match 698 abc\nbarton 699No match 700 701/^(?<=foo\n)bar/Im 702Capturing subpattern count = 0 703Contains explicit CR or LF match 704Options: multiline 705First char at start or follows newline 706Need char = 'r' 707Max lookbehind = 4 708 foo\nbarbar 709 0: bar 710 ***Failers 711No match 712 rhubarb 713No match 714 barbell 715No match 716 abc\nbarton 717No match 718 719/(?>^abc)/Im 720Capturing subpattern count = 0 721Options: multiline 722First char at start or follows newline 723Need char = 'c' 724 abc 725 0: abc 726 def\nabc 727 0: abc 728 *** Failers 729No match 730 defabc 731No match 732 733/(?<=ab(c+)d)ef/ 734Failed: lookbehind assertion is not fixed length at offset 11 735 736/(?<=ab(?<=c+)d)ef/ 737Failed: lookbehind assertion is not fixed length at offset 12 738 739/(?<=ab(c|de)f)g/ 740Failed: lookbehind assertion is not fixed length at offset 13 741 742/The next three are in testinput2 because they have variable length branches/ 743 744/(?<=bullock|donkey)-cart/I 745Capturing subpattern count = 0 746No options 747First char = '-' 748Need char = 't' 749Max lookbehind = 7 750 the bullock-cart 751 0: -cart 752 a donkey-cart race 753 0: -cart 754 *** Failers 755No match 756 cart 757No match 758 horse-and-cart 759No match 760 761/(?<=ab(?i)x|y|z)/I 762Capturing subpattern count = 0 763No options 764No first char 765No need char 766Max lookbehind = 3 767 768/(?>.*)(?<=(abcd)|(xyz))/I 769Capturing subpattern count = 2 770No options 771No first char 772No need char 773Max lookbehind = 4 774 alphabetabcd 775 0: alphabetabcd 776 1: abcd 777 endingxyz 778 0: endingxyz 779 1: <unset> 780 2: xyz 781 782/(?<=ab(?i)x(?-i)y|(?i)z|b)ZZ/I 783Capturing subpattern count = 0 784No options 785First char = 'Z' 786Need char = 'Z' 787Max lookbehind = 4 788 abxyZZ 789 0: ZZ 790 abXyZZ 791 0: ZZ 792 ZZZ 793 0: ZZ 794 zZZ 795 0: ZZ 796 bZZ 797 0: ZZ 798 BZZ 799 0: ZZ 800 *** Failers 801No match 802 ZZ 803No match 804 abXYZZ 805No match 806 zzz 807No match 808 bzz 809No match 810 811/(?<!(foo)a)bar/I 812Capturing subpattern count = 1 813No options 814First char = 'b' 815Need char = 'r' 816Max lookbehind = 4 817 bar 818 0: bar 819 foobbar 820 0: bar 821 *** Failers 822No match 823 fooabar 824No match 825 826/This one is here because Perl 5.005_02 doesn't fail it/I 827Capturing subpattern count = 0 828No options 829First char = 'T' 830Need char = 't' 831 832/^(a)?(?(1)a|b)+$/I 833Capturing subpattern count = 1 834Options: anchored 835No first char 836No need char 837 *** Failers 838No match 839 a 840No match 841 842/This one is here because Perl behaves differently; see also the following/I 843Capturing subpattern count = 0 844No options 845First char = 'T' 846Need char = 'g' 847 848/^(a\1?){4}$/I 849Capturing subpattern count = 1 850Max back reference = 1 851Options: anchored 852No first char 853No need char 854 aaaa 855No match 856 aaaaaa 857No match 858 859/Perl does not fail these two for the final subjects. Neither did PCRE until/ 860/release 8.01. The problem is in backtracking into a subpattern that contains/ 861No match 862/a recursive reference to itself. PCRE has now made these into atomic patterns./ 863No match 864 865/^(xa|=?\1a){2}$/ 866 xa=xaa 867 0: xa=xaa 868 1: =xaa 869 ** Failers 870No match 871 xa=xaaa 872No match 873 874/^(xa|=?\1a)+$/ 875 xa=xaa 876 0: xa=xaa 877 1: =xaa 878 ** Failers 879No match 880 xa=xaaa 881No match 882 883/These are syntax tests from Perl 5.005/I 884Capturing subpattern count = 0 885No options 886First char = 'T' 887Need char = '5' 888 889/a[b-a]/ 890Failed: range out of order in character class at offset 4 891 892/a[]b/ 893Failed: missing terminating ] for character class at offset 4 894 895/a[/ 896Failed: missing terminating ] for character class at offset 2 897 898/*a/ 899Failed: nothing to repeat at offset 0 900 901/(*)b/ 902Failed: nothing to repeat at offset 1 903 904/abc)/ 905Failed: unmatched parentheses at offset 3 906 907/(abc/ 908Failed: missing ) at offset 4 909 910/a**/ 911Failed: nothing to repeat at offset 2 912 913/)(/ 914Failed: unmatched parentheses at offset 0 915 916/\1/ 917Failed: reference to non-existent subpattern at offset 2 918 919/\2/ 920Failed: reference to non-existent subpattern at offset 2 921 922/(a)|\2/ 923Failed: reference to non-existent subpattern at offset 6 924 925/a[b-a]/Ii 926Failed: range out of order in character class at offset 4 927 928/a[]b/Ii 929Failed: missing terminating ] for character class at offset 4 930 931/a[/Ii 932Failed: missing terminating ] for character class at offset 2 933 934/*a/Ii 935Failed: nothing to repeat at offset 0 936 937/(*)b/Ii 938Failed: nothing to repeat at offset 1 939 940/abc)/Ii 941Failed: unmatched parentheses at offset 3 942 943/(abc/Ii 944Failed: missing ) at offset 4 945 946/a**/Ii 947Failed: nothing to repeat at offset 2 948 949/)(/Ii 950Failed: unmatched parentheses at offset 0 951 952/:(?:/ 953Failed: missing ) at offset 4 954 955/(?<%)b/ 956Failed: unrecognized character after (?< at offset 3 957 958/a(?{)b/ 959Failed: unrecognized character after (? or (?- at offset 3 960 961/a(?{{})b/ 962Failed: unrecognized character after (? or (?- at offset 3 963 964/a(?{}})b/ 965Failed: unrecognized character after (? or (?- at offset 3 966 967/a(?{"{"})b/ 968Failed: unrecognized character after (? or (?- at offset 3 969 970/a(?{"{"}})b/ 971Failed: unrecognized character after (? or (?- at offset 3 972 973/(?(1?)a|b)/ 974Failed: malformed number or name after (?( at offset 4 975 976/[a[:xyz:/ 977Failed: missing terminating ] for character class at offset 8 978 979/(?<=x+)y/ 980Failed: lookbehind assertion is not fixed length at offset 6 981 982/a{37,17}/ 983Failed: numbers out of order in {} quantifier at offset 7 984 985/abc/\ 986Failed: \ at end of pattern at offset 4 987 988/abc/\i 989Failed: \ at end of pattern at offset 4 990 991/(a)bc(d)/I 992Capturing subpattern count = 2 993No options 994First char = 'a' 995Need char = 'd' 996 abcd 997 0: abcd 998 1: a 999 2: d 1000 abcd\C2 1001 0: abcd 1002 1: a 1003 2: d 1004 2C d (1) 1005 abcd\C5 1006 0: abcd 1007 1: a 1008 2: d 1009copy substring 5 failed -7 1010 1011/(.{20})/I 1012Capturing subpattern count = 1 1013No options 1014No first char 1015No need char 1016 abcdefghijklmnopqrstuvwxyz 1017 0: abcdefghijklmnopqrst 1018 1: abcdefghijklmnopqrst 1019 abcdefghijklmnopqrstuvwxyz\C1 1020 0: abcdefghijklmnopqrst 1021 1: abcdefghijklmnopqrst 1022 1C abcdefghijklmnopqrst (20) 1023 abcdefghijklmnopqrstuvwxyz\G1 1024 0: abcdefghijklmnopqrst 1025 1: abcdefghijklmnopqrst 1026 1G abcdefghijklmnopqrst (20) 1027 1028/(.{15})/I 1029Capturing subpattern count = 1 1030No options 1031No first char 1032No need char 1033 abcdefghijklmnopqrstuvwxyz 1034 0: abcdefghijklmno 1035 1: abcdefghijklmno 1036 abcdefghijklmnopqrstuvwxyz\C1\G1 1037 0: abcdefghijklmno 1038 1: abcdefghijklmno 1039 1C abcdefghijklmno (15) 1040 1G abcdefghijklmno (15) 1041 1042/(.{16})/I 1043Capturing subpattern count = 1 1044No options 1045No first char 1046No need char 1047 abcdefghijklmnopqrstuvwxyz 1048 0: abcdefghijklmnop 1049 1: abcdefghijklmnop 1050 abcdefghijklmnopqrstuvwxyz\C1\G1\L 1051 0: abcdefghijklmnop 1052 1: abcdefghijklmnop 1053 1C abcdefghijklmnop (16) 1054 1G abcdefghijklmnop (16) 1055 0L abcdefghijklmnop 1056 1L abcdefghijklmnop 1057 1058/^(a|(bc))de(f)/I 1059Capturing subpattern count = 3 1060Options: anchored 1061No first char 1062No need char 1063 adef\G1\G2\G3\G4\L 1064 0: adef 1065 1: a 1066 2: <unset> 1067 3: f 1068 1G a (1) 1069 2G (0) 1070 3G f (1) 1071get substring 4 failed -7 1072 0L adef 1073 1L a 1074 2L 1075 3L f 1076 bcdef\G1\G2\G3\G4\L 1077 0: bcdef 1078 1: bc 1079 2: bc 1080 3: f 1081 1G bc (2) 1082 2G bc (2) 1083 3G f (1) 1084get substring 4 failed -7 1085 0L bcdef 1086 1L bc 1087 2L bc 1088 3L f 1089 adefghijk\C0 1090 0: adef 1091 1: a 1092 2: <unset> 1093 3: f 1094 0C adef (4) 1095 1096/^abc\00def/I 1097Capturing subpattern count = 0 1098Options: anchored 1099No first char 1100No need char 1101 abc\00def\L\C0 1102 0: abc\x00def 1103 0C abc\x00def (7) 1104 0L abc 1105 1106/word ((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ 1107)((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ 1108)?)?)?)?)?)?)?)?)?otherword/I 1109Capturing subpattern count = 8 1110Contains explicit CR or LF match 1111No options 1112First char = 'w' 1113Need char = 'd' 1114 1115/.*X/IDZ 1116------------------------------------------------------------------ 1117 Bra 1118 Any* 1119 X 1120 Ket 1121 End 1122------------------------------------------------------------------ 1123Capturing subpattern count = 0 1124No options 1125First char at start or follows newline 1126Need char = 'X' 1127 1128/.*X/IDZs 1129------------------------------------------------------------------ 1130 Bra 1131 AllAny* 1132 X 1133 Ket 1134 End 1135------------------------------------------------------------------ 1136Capturing subpattern count = 0 1137Options: anchored dotall 1138No first char 1139Need char = 'X' 1140 1141/(.*X|^B)/IDZ 1142------------------------------------------------------------------ 1143 Bra 1144 CBra 1 1145 Any* 1146 X 1147 Alt 1148 ^ 1149 B 1150 Ket 1151 Ket 1152 End 1153------------------------------------------------------------------ 1154Capturing subpattern count = 1 1155No options 1156First char at start or follows newline 1157No need char 1158 1159/(.*X|^B)/IDZs 1160------------------------------------------------------------------ 1161 Bra 1162 CBra 1 1163 AllAny* 1164 X 1165 Alt 1166 ^ 1167 B 1168 Ket 1169 Ket 1170 End 1171------------------------------------------------------------------ 1172Capturing subpattern count = 1 1173Options: anchored dotall 1174No first char 1175No need char 1176 1177/(?s)(.*X|^B)/IDZ 1178------------------------------------------------------------------ 1179 Bra 1180 CBra 1 1181 AllAny* 1182 X 1183 Alt 1184 ^ 1185 B 1186 Ket 1187 Ket 1188 End 1189------------------------------------------------------------------ 1190Capturing subpattern count = 1 1191Options: anchored dotall 1192No first char 1193No need char 1194 1195/(?s:.*X|^B)/IDZ 1196------------------------------------------------------------------ 1197 Bra 1198 Bra 1199 AllAny* 1200 X 1201 Alt 1202 ^ 1203 B 1204 Ket 1205 Ket 1206 End 1207------------------------------------------------------------------ 1208Capturing subpattern count = 0 1209Options: anchored 1210No first char 1211No need char 1212 1213/\Biss\B/I+ 1214Capturing subpattern count = 0 1215No options 1216First char = 'i' 1217Need char = 's' 1218Max lookbehind = 1 1219 Mississippi 1220 0: iss 1221 0+ issippi 1222 1223/iss/IG+ 1224Capturing subpattern count = 0 1225No options 1226First char = 'i' 1227Need char = 's' 1228 Mississippi 1229 0: iss 1230 0+ issippi 1231 0: iss 1232 0+ ippi 1233 1234/\Biss\B/IG+ 1235Capturing subpattern count = 0 1236No options 1237First char = 'i' 1238Need char = 's' 1239Max lookbehind = 1 1240 Mississippi 1241 0: iss 1242 0+ issippi 1243 1244/\Biss\B/Ig+ 1245Capturing subpattern count = 0 1246No options 1247First char = 'i' 1248Need char = 's' 1249Max lookbehind = 1 1250 Mississippi 1251 0: iss 1252 0+ issippi 1253 0: iss 1254 0+ ippi 1255 *** Failers 1256No match 1257 Mississippi\A 1258No match 1259 1260/(?<=[Ms])iss/Ig+ 1261Capturing subpattern count = 0 1262No options 1263First char = 'i' 1264Need char = 's' 1265Max lookbehind = 1 1266 Mississippi 1267 0: iss 1268 0+ issippi 1269 0: iss 1270 0+ ippi 1271 1272/(?<=[Ms])iss/IG+ 1273Capturing subpattern count = 0 1274No options 1275First char = 'i' 1276Need char = 's' 1277Max lookbehind = 1 1278 Mississippi 1279 0: iss 1280 0+ issippi 1281 1282/^iss/Ig+ 1283Capturing subpattern count = 0 1284Options: anchored 1285No first char 1286No need char 1287 ississippi 1288 0: iss 1289 0+ issippi 1290 1291/.*iss/Ig+ 1292Capturing subpattern count = 0 1293No options 1294First char at start or follows newline 1295Need char = 's' 1296 abciss\nxyzisspqr 1297 0: abciss 1298 0+ \x0axyzisspqr 1299 0: xyziss 1300 0+ pqr 1301 1302/.i./I+g 1303Capturing subpattern count = 0 1304No options 1305No first char 1306Need char = 'i' 1307 Mississippi 1308 0: Mis 1309 0+ sissippi 1310 0: sis 1311 0+ sippi 1312 0: sip 1313 0+ pi 1314 Mississippi\A 1315 0: Mis 1316 0+ sissippi 1317 0: sis 1318 0+ sippi 1319 0: sip 1320 0+ pi 1321 Missouri river 1322 0: Mis 1323 0+ souri river 1324 0: ri 1325 0+ river 1326 0: riv 1327 0+ er 1328 Missouri river\A 1329 0: Mis 1330 0+ souri river 1331 1332/^.is/I+g 1333Capturing subpattern count = 0 1334Options: anchored 1335No first char 1336No need char 1337 Mississippi 1338 0: Mis 1339 0+ sissippi 1340 1341/^ab\n/Ig+ 1342Capturing subpattern count = 0 1343Contains explicit CR or LF match 1344Options: anchored 1345No first char 1346No need char 1347 ab\nab\ncd 1348 0: ab\x0a 1349 0+ ab\x0acd 1350 1351/^ab\n/Img+ 1352Capturing subpattern count = 0 1353Contains explicit CR or LF match 1354Options: multiline 1355First char at start or follows newline 1356Need char = \x0a 1357 ab\nab\ncd 1358 0: ab\x0a 1359 0+ ab\x0acd 1360 0: ab\x0a 1361 0+ cd 1362 1363/abc/I 1364Capturing subpattern count = 0 1365No options 1366First char = 'a' 1367Need char = 'c' 1368 1369/abc|bac/I 1370Capturing subpattern count = 0 1371No options 1372No first char 1373Need char = 'c' 1374 1375/(abc|bac)/I 1376Capturing subpattern count = 1 1377No options 1378No first char 1379Need char = 'c' 1380 1381/(abc|(c|dc))/I 1382Capturing subpattern count = 2 1383No options 1384No first char 1385Need char = 'c' 1386 1387/(abc|(d|de)c)/I 1388Capturing subpattern count = 2 1389No options 1390No first char 1391Need char = 'c' 1392 1393/a*/I 1394Capturing subpattern count = 0 1395No options 1396No first char 1397No need char 1398 1399/a+/I 1400Capturing subpattern count = 0 1401No options 1402First char = 'a' 1403No need char 1404 1405/(baa|a+)/I 1406Capturing subpattern count = 1 1407No options 1408No first char 1409Need char = 'a' 1410 1411/a{0,3}/I 1412Capturing subpattern count = 0 1413No options 1414No first char 1415No need char 1416 1417/baa{3,}/I 1418Capturing subpattern count = 0 1419No options 1420First char = 'b' 1421Need char = 'a' 1422 1423/"([^\\"]+|\\.)*"/I 1424Capturing subpattern count = 1 1425No options 1426First char = '"' 1427Need char = '"' 1428 1429/(abc|ab[cd])/I 1430Capturing subpattern count = 1 1431No options 1432First char = 'a' 1433No need char 1434 1435/(a|.)/I 1436Capturing subpattern count = 1 1437No options 1438No first char 1439No need char 1440 1441/a|ba|\w/I 1442Capturing subpattern count = 0 1443No options 1444No first char 1445No need char 1446 1447/abc(?=pqr)/I 1448Capturing subpattern count = 0 1449No options 1450First char = 'a' 1451Need char = 'r' 1452 1453/...(?<=abc)/I 1454Capturing subpattern count = 0 1455No options 1456No first char 1457No need char 1458Max lookbehind = 3 1459 1460/abc(?!pqr)/I 1461Capturing subpattern count = 0 1462No options 1463First char = 'a' 1464Need char = 'c' 1465 1466/ab./I 1467Capturing subpattern count = 0 1468No options 1469First char = 'a' 1470Need char = 'b' 1471 1472/ab[xyz]/I 1473Capturing subpattern count = 0 1474No options 1475First char = 'a' 1476Need char = 'b' 1477 1478/abc*/I 1479Capturing subpattern count = 0 1480No options 1481First char = 'a' 1482Need char = 'b' 1483 1484/ab.c*/I 1485Capturing subpattern count = 0 1486No options 1487First char = 'a' 1488Need char = 'b' 1489 1490/a.c*/I 1491Capturing subpattern count = 0 1492No options 1493First char = 'a' 1494No need char 1495 1496/.c*/I 1497Capturing subpattern count = 0 1498No options 1499No first char 1500No need char 1501 1502/ac*/I 1503Capturing subpattern count = 0 1504No options 1505First char = 'a' 1506No need char 1507 1508/(a.c*|b.c*)/I 1509Capturing subpattern count = 1 1510No options 1511No first char 1512No need char 1513 1514/a.c*|aba/I 1515Capturing subpattern count = 0 1516No options 1517First char = 'a' 1518No need char 1519 1520/.+a/I 1521Capturing subpattern count = 0 1522No options 1523No first char 1524Need char = 'a' 1525 1526/(?=abcda)a.*/I 1527Capturing subpattern count = 0 1528No options 1529First char = 'a' 1530Need char = 'a' 1531 1532/(?=a)a.*/I 1533Capturing subpattern count = 0 1534No options 1535First char = 'a' 1536No need char 1537 1538/a(b)*/I 1539Capturing subpattern count = 1 1540No options 1541First char = 'a' 1542No need char 1543 1544/a\d*/I 1545Capturing subpattern count = 0 1546No options 1547First char = 'a' 1548No need char 1549 1550/ab\d*/I 1551Capturing subpattern count = 0 1552No options 1553First char = 'a' 1554Need char = 'b' 1555 1556/a(\d)*/I 1557Capturing subpattern count = 1 1558No options 1559First char = 'a' 1560No need char 1561 1562/abcde{0,0}/I 1563Capturing subpattern count = 0 1564No options 1565First char = 'a' 1566Need char = 'd' 1567 1568/ab\d+/I 1569Capturing subpattern count = 0 1570No options 1571First char = 'a' 1572Need char = 'b' 1573 1574/a(?(1)b)(.)/I 1575Capturing subpattern count = 1 1576No options 1577First char = 'a' 1578No need char 1579 1580/a(?(1)bag|big)(.)/I 1581Capturing subpattern count = 1 1582No options 1583First char = 'a' 1584Need char = 'g' 1585 1586/a(?(1)bag|big)*(.)/I 1587Capturing subpattern count = 1 1588No options 1589First char = 'a' 1590No need char 1591 1592/a(?(1)bag|big)+(.)/I 1593Capturing subpattern count = 1 1594No options 1595First char = 'a' 1596Need char = 'g' 1597 1598/a(?(1)b..|b..)(.)/I 1599Capturing subpattern count = 1 1600No options 1601First char = 'a' 1602Need char = 'b' 1603 1604/ab\d{0}e/I 1605Capturing subpattern count = 0 1606No options 1607First char = 'a' 1608Need char = 'e' 1609 1610/a?b?/I 1611Capturing subpattern count = 0 1612No options 1613No first char 1614No need char 1615 a 1616 0: a 1617 b 1618 0: b 1619 ab 1620 0: ab 1621 \ 1622 0: 1623 *** Failers 1624 0: 1625 \N 1626No match 1627 1628/|-/I 1629Capturing subpattern count = 0 1630No options 1631No first char 1632No need char 1633 abcd 1634 0: 1635 -abc 1636 0: 1637 \Nab-c 1638 0: - 1639 *** Failers 1640 0: 1641 \Nabc 1642No match 1643 1644/^.?abcd/IS 1645Capturing subpattern count = 0 1646Options: anchored 1647No first char 1648Need char = 'd' 1649Subject length lower bound = 4 1650No set of starting bytes 1651 1652/\( # ( at start 1653 (?: # Non-capturing bracket 1654 (?>[^()]+) # Either a sequence of non-brackets (no backtracking) 1655 | # Or 1656 (?R) # Recurse - i.e. nested bracketed string 1657 )* # Zero or more contents 1658 \) # Closing ) 1659 /Ix 1660Capturing subpattern count = 0 1661Options: extended 1662First char = '(' 1663Need char = ')' 1664 (abcd) 1665 0: (abcd) 1666 (abcd)xyz 1667 0: (abcd) 1668 xyz(abcd) 1669 0: (abcd) 1670 (ab(xy)cd)pqr 1671 0: (ab(xy)cd) 1672 (ab(xycd)pqr 1673 0: (xycd) 1674 () abc () 1675 0: () 1676 12(abcde(fsh)xyz(foo(bar))lmno)89 1677 0: (abcde(fsh)xyz(foo(bar))lmno) 1678 *** Failers 1679No match 1680 abcd 1681No match 1682 abcd) 1683No match 1684 (abcd 1685No match 1686 1687/\( ( (?>[^()]+) | (?R) )* \) /Ixg 1688Capturing subpattern count = 1 1689Options: extended 1690First char = '(' 1691Need char = ')' 1692 (ab(xy)cd)pqr 1693 0: (ab(xy)cd) 1694 1: cd 1695 1(abcd)(x(y)z)pqr 1696 0: (abcd) 1697 1: abcd 1698 0: (x(y)z) 1699 1: z 1700 1701/\( (?: (?>[^()]+) | (?R) ) \) /Ix 1702Capturing subpattern count = 0 1703Options: extended 1704First char = '(' 1705Need char = ')' 1706 (abcd) 1707 0: (abcd) 1708 (ab(xy)cd) 1709 0: (xy) 1710 (a(b(c)d)e) 1711 0: (c) 1712 ((ab)) 1713 0: ((ab)) 1714 *** Failers 1715No match 1716 () 1717No match 1718 1719/\( (?: (?>[^()]+) | (?R) )? \) /Ix 1720Capturing subpattern count = 0 1721Options: extended 1722First char = '(' 1723Need char = ')' 1724 () 1725 0: () 1726 12(abcde(fsh)xyz(foo(bar))lmno)89 1727 0: (fsh) 1728 1729/\( ( (?>[^()]+) | (?R) )* \) /Ix 1730Capturing subpattern count = 1 1731Options: extended 1732First char = '(' 1733Need char = ')' 1734 (ab(xy)cd) 1735 0: (ab(xy)cd) 1736 1: cd 1737 1738/\( ( ( (?>[^()]+) | (?R) )* ) \) /Ix 1739Capturing subpattern count = 2 1740Options: extended 1741First char = '(' 1742Need char = ')' 1743 (ab(xy)cd) 1744 0: (ab(xy)cd) 1745 1: ab(xy)cd 1746 2: cd 1747 1748/\( (123)? ( ( (?>[^()]+) | (?R) )* ) \) /Ix 1749Capturing subpattern count = 3 1750Options: extended 1751First char = '(' 1752Need char = ')' 1753 (ab(xy)cd) 1754 0: (ab(xy)cd) 1755 1: <unset> 1756 2: ab(xy)cd 1757 3: cd 1758 (123ab(xy)cd) 1759 0: (123ab(xy)cd) 1760 1: 123 1761 2: ab(xy)cd 1762 3: cd 1763 1764/\( ( (123)? ( (?>[^()]+) | (?R) )* ) \) /Ix 1765Capturing subpattern count = 3 1766Options: extended 1767First char = '(' 1768Need char = ')' 1769 (ab(xy)cd) 1770 0: (ab(xy)cd) 1771 1: ab(xy)cd 1772 2: <unset> 1773 3: cd 1774 (123ab(xy)cd) 1775 0: (123ab(xy)cd) 1776 1: 123ab(xy)cd 1777 2: 123 1778 3: cd 1779 1780/\( (((((((((( ( (?>[^()]+) | (?R) )* )))))))))) \) /Ix 1781Capturing subpattern count = 11 1782Options: extended 1783First char = '(' 1784Need char = ')' 1785 (ab(xy)cd) 1786 0: (ab(xy)cd) 1787 1: ab(xy)cd 1788 2: ab(xy)cd 1789 3: ab(xy)cd 1790 4: ab(xy)cd 1791 5: ab(xy)cd 1792 6: ab(xy)cd 1793 7: ab(xy)cd 1794 8: ab(xy)cd 1795 9: ab(xy)cd 179610: ab(xy)cd 179711: cd 1798 1799/\( ( ( (?>[^()<>]+) | ((?>[^()]+)) | (?R) )* ) \) /Ix 1800Capturing subpattern count = 3 1801Options: extended 1802First char = '(' 1803Need char = ')' 1804 (abcd(xyz<p>qrs)123) 1805 0: (abcd(xyz<p>qrs)123) 1806 1: abcd(xyz<p>qrs)123 1807 2: 123 1808 1809/\( ( ( (?>[^()]+) | ((?R)) )* ) \) /Ix 1810Capturing subpattern count = 3 1811Options: extended 1812First char = '(' 1813Need char = ')' 1814 (ab(cd)ef) 1815 0: (ab(cd)ef) 1816 1: ab(cd)ef 1817 2: ef 1818 3: (cd) 1819 (ab(cd(ef)gh)ij) 1820 0: (ab(cd(ef)gh)ij) 1821 1: ab(cd(ef)gh)ij 1822 2: ij 1823 3: (cd(ef)gh) 1824 1825/^[[:alnum:]]/DZ 1826------------------------------------------------------------------ 1827 Bra 1828 ^ 1829 [0-9A-Za-z] 1830 Ket 1831 End 1832------------------------------------------------------------------ 1833Capturing subpattern count = 0 1834Options: anchored 1835No first char 1836No need char 1837 1838/^[[:^alnum:]]/DZ 1839------------------------------------------------------------------ 1840 Bra 1841 ^ 1842 [\x00-/:-@[-`{-\xff] (neg) 1843 Ket 1844 End 1845------------------------------------------------------------------ 1846Capturing subpattern count = 0 1847Options: anchored 1848No first char 1849No need char 1850 1851/^[[:alpha:]]/DZ 1852------------------------------------------------------------------ 1853 Bra 1854 ^ 1855 [A-Za-z] 1856 Ket 1857 End 1858------------------------------------------------------------------ 1859Capturing subpattern count = 0 1860Options: anchored 1861No first char 1862No need char 1863 1864/^[[:^alpha:]]/DZ 1865------------------------------------------------------------------ 1866 Bra 1867 ^ 1868 [\x00-@[-`{-\xff] (neg) 1869 Ket 1870 End 1871------------------------------------------------------------------ 1872Capturing subpattern count = 0 1873Options: anchored 1874No first char 1875No need char 1876 1877/[_[:alpha:]]/IS 1878Capturing subpattern count = 0 1879No options 1880No first char 1881No need char 1882Subject length lower bound = 1 1883Starting byte set: 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 1884 _ 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 1885 1886/^[[:ascii:]]/DZ 1887------------------------------------------------------------------ 1888 Bra 1889 ^ 1890 [\x00-\x7f] 1891 Ket 1892 End 1893------------------------------------------------------------------ 1894Capturing subpattern count = 0 1895Options: anchored 1896No first char 1897No need char 1898 1899/^[[:^ascii:]]/DZ 1900------------------------------------------------------------------ 1901 Bra 1902 ^ 1903 [\x80-\xff] (neg) 1904 Ket 1905 End 1906------------------------------------------------------------------ 1907Capturing subpattern count = 0 1908Options: anchored 1909No first char 1910No need char 1911 1912/^[[:blank:]]/DZ 1913------------------------------------------------------------------ 1914 Bra 1915 ^ 1916 [\x09 ] 1917 Ket 1918 End 1919------------------------------------------------------------------ 1920Capturing subpattern count = 0 1921Options: anchored 1922No first char 1923No need char 1924 1925/^[[:^blank:]]/DZ 1926------------------------------------------------------------------ 1927 Bra 1928 ^ 1929 [\x00-\x08\x0a-\x1f!-\xff] (neg) 1930 Ket 1931 End 1932------------------------------------------------------------------ 1933Capturing subpattern count = 0 1934Options: anchored 1935No first char 1936No need char 1937 1938/[\n\x0b\x0c\x0d[:blank:]]/IS 1939Capturing subpattern count = 0 1940Contains explicit CR or LF match 1941No options 1942No first char 1943No need char 1944Subject length lower bound = 1 1945Starting byte set: \x09 \x0a \x0b \x0c \x0d \x20 1946 1947/^[[:cntrl:]]/DZ 1948------------------------------------------------------------------ 1949 Bra 1950 ^ 1951 [\x00-\x1f\x7f] 1952 Ket 1953 End 1954------------------------------------------------------------------ 1955Capturing subpattern count = 0 1956Options: anchored 1957No first char 1958No need char 1959 1960/^[[:digit:]]/DZ 1961------------------------------------------------------------------ 1962 Bra 1963 ^ 1964 [0-9] 1965 Ket 1966 End 1967------------------------------------------------------------------ 1968Capturing subpattern count = 0 1969Options: anchored 1970No first char 1971No need char 1972 1973/^[[:graph:]]/DZ 1974------------------------------------------------------------------ 1975 Bra 1976 ^ 1977 [!-~] 1978 Ket 1979 End 1980------------------------------------------------------------------ 1981Capturing subpattern count = 0 1982Options: anchored 1983No first char 1984No need char 1985 1986/^[[:lower:]]/DZ 1987------------------------------------------------------------------ 1988 Bra 1989 ^ 1990 [a-z] 1991 Ket 1992 End 1993------------------------------------------------------------------ 1994Capturing subpattern count = 0 1995Options: anchored 1996No first char 1997No need char 1998 1999/^[[:print:]]/DZ 2000------------------------------------------------------------------ 2001 Bra 2002 ^ 2003 [ -~] 2004 Ket 2005 End 2006------------------------------------------------------------------ 2007Capturing subpattern count = 0 2008Options: anchored 2009No first char 2010No need char 2011 2012/^[[:punct:]]/DZ 2013------------------------------------------------------------------ 2014 Bra 2015 ^ 2016 [!-/:-@[-`{-~] 2017 Ket 2018 End 2019------------------------------------------------------------------ 2020Capturing subpattern count = 0 2021Options: anchored 2022No first char 2023No need char 2024 2025/^[[:space:]]/DZ 2026------------------------------------------------------------------ 2027 Bra 2028 ^ 2029 [\x09-\x0d ] 2030 Ket 2031 End 2032------------------------------------------------------------------ 2033Capturing subpattern count = 0 2034Options: anchored 2035No first char 2036No need char 2037 2038/^[[:upper:]]/DZ 2039------------------------------------------------------------------ 2040 Bra 2041 ^ 2042 [A-Z] 2043 Ket 2044 End 2045------------------------------------------------------------------ 2046Capturing subpattern count = 0 2047Options: anchored 2048No first char 2049No need char 2050 2051/^[[:xdigit:]]/DZ 2052------------------------------------------------------------------ 2053 Bra 2054 ^ 2055 [0-9A-Fa-f] 2056 Ket 2057 End 2058------------------------------------------------------------------ 2059Capturing subpattern count = 0 2060Options: anchored 2061No first char 2062No need char 2063 2064/^[[:word:]]/DZ 2065------------------------------------------------------------------ 2066 Bra 2067 ^ 2068 [0-9A-Z_a-z] 2069 Ket 2070 End 2071------------------------------------------------------------------ 2072Capturing subpattern count = 0 2073Options: anchored 2074No first char 2075No need char 2076 2077/^[[:^cntrl:]]/DZ 2078------------------------------------------------------------------ 2079 Bra 2080 ^ 2081 [ -~\x80-\xff] (neg) 2082 Ket 2083 End 2084------------------------------------------------------------------ 2085Capturing subpattern count = 0 2086Options: anchored 2087No first char 2088No need char 2089 2090/^[12[:^digit:]]/DZ 2091------------------------------------------------------------------ 2092 Bra 2093 ^ 2094 [\x00-/12:-\xff] (neg) 2095 Ket 2096 End 2097------------------------------------------------------------------ 2098Capturing subpattern count = 0 2099Options: anchored 2100No first char 2101No need char 2102 2103/^[[:^blank:]]/DZ 2104------------------------------------------------------------------ 2105 Bra 2106 ^ 2107 [\x00-\x08\x0a-\x1f!-\xff] (neg) 2108 Ket 2109 End 2110------------------------------------------------------------------ 2111Capturing subpattern count = 0 2112Options: anchored 2113No first char 2114No need char 2115 2116/[01[:alpha:]%]/DZ 2117------------------------------------------------------------------ 2118 Bra 2119 [%01A-Za-z] 2120 Ket 2121 End 2122------------------------------------------------------------------ 2123Capturing subpattern count = 0 2124No options 2125No first char 2126No need char 2127 2128/[[.ch.]]/I 2129Failed: POSIX collating elements are not supported at offset 1 2130 2131/[[=ch=]]/I 2132Failed: POSIX collating elements are not supported at offset 1 2133 2134/[[:rhubarb:]]/I 2135Failed: unknown POSIX class name at offset 3 2136 2137/[[:upper:]]/Ii 2138Capturing subpattern count = 0 2139Options: caseless 2140No first char 2141No need char 2142 A 2143 0: A 2144 a 2145 0: a 2146 2147/[[:lower:]]/Ii 2148Capturing subpattern count = 0 2149Options: caseless 2150No first char 2151No need char 2152 A 2153 0: A 2154 a 2155 0: a 2156 2157/((?-i)[[:lower:]])[[:lower:]]/Ii 2158Capturing subpattern count = 1 2159Options: caseless 2160No first char 2161No need char 2162 ab 2163 0: ab 2164 1: a 2165 aB 2166 0: aB 2167 1: a 2168 *** Failers 2169 0: ai 2170 1: a 2171 Ab 2172No match 2173 AB 2174No match 2175 2176/[\200-\110]/I 2177Failed: range out of order in character class at offset 9 2178 2179/^(?(0)f|b)oo/I 2180Failed: invalid condition (?(0) at offset 6 2181 2182/This one's here because of the large output vector needed/I 2183Capturing subpattern count = 0 2184No options 2185First char = 'T' 2186Need char = 'd' 2187 2188/(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\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 2189Capturing subpattern count = 271 2190Max back reference = 270 2191No options 2192No first char 2193No need char 2194 \O900 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ABC ABC 2195 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 2196 1: 1 2197 2: 2 2198 3: 3 2199 4: 4 2200 5: 5 2201 6: 6 2202 7: 7 2203 8: 8 2204 9: 9 220510: 10 220611: 11 220712: 12 220813: 13 220914: 14 221015: 15 221116: 16 221217: 17 221318: 18 221419: 19 221520: 20 221621: 21 221722: 22 221823: 23 221924: 24 222025: 25 222126: 26 222227: 27 222328: 28 222429: 29 222530: 30 222631: 31 222732: 32 222833: 33 222934: 34 223035: 35 223136: 36 223237: 37 223338: 38 223439: 39 223540: 40 223641: 41 223742: 42 223843: 43 223944: 44 224045: 45 224146: 46 224247: 47 224348: 48 224449: 49 224550: 50 224651: 51 224752: 52 224853: 53 224954: 54 225055: 55 225156: 56 225257: 57 225358: 58 225459: 59 225560: 60 225661: 61 225762: 62 225863: 63 225964: 64 226065: 65 226166: 66 226267: 67 226368: 68 226469: 69 226570: 70 226671: 71 226772: 72 226873: 73 226974: 74 227075: 75 227176: 76 227277: 77 227378: 78 227479: 79 227580: 80 227681: 81 227782: 82 227883: 83 227984: 84 228085: 85 228186: 86 228287: 87 228388: 88 228489: 89 228590: 90 228691: 91 228792: 92 228893: 93 228994: 94 229095: 95 229196: 96 229297: 97 229398: 98 229499: 99 2295100: 100 2296101: 101 2297102: 102 2298103: 103 2299104: 104 2300105: 105 2301106: 106 2302107: 107 2303108: 108 2304109: 109 2305110: 110 2306111: 111 2307112: 112 2308113: 113 2309114: 114 2310115: 115 2311116: 116 2312117: 117 2313118: 118 2314119: 119 2315120: 120 2316121: 121 2317122: 122 2318123: 123 2319124: 124 2320125: 125 2321126: 126 2322127: 127 2323128: 128 2324129: 129 2325130: 130 2326131: 131 2327132: 132 2328133: 133 2329134: 134 2330135: 135 2331136: 136 2332137: 137 2333138: 138 2334139: 139 2335140: 140 2336141: 141 2337142: 142 2338143: 143 2339144: 144 2340145: 145 2341146: 146 2342147: 147 2343148: 148 2344149: 149 2345150: 150 2346151: 151 2347152: 152 2348153: 153 2349154: 154 2350155: 155 2351156: 156 2352157: 157 2353158: 158 2354159: 159 2355160: 160 2356161: 161 2357162: 162 2358163: 163 2359164: 164 2360165: 165 2361166: 166 2362167: 167 2363168: 168 2364169: 169 2365170: 170 2366171: 171 2367172: 172 2368173: 173 2369174: 174 2370175: 175 2371176: 176 2372177: 177 2373178: 178 2374179: 179 2375180: 180 2376181: 181 2377182: 182 2378183: 183 2379184: 184 2380185: 185 2381186: 186 2382187: 187 2383188: 188 2384189: 189 2385190: 190 2386191: 191 2387192: 192 2388193: 193 2389194: 194 2390195: 195 2391196: 196 2392197: 197 2393198: 198 2394199: 199 2395200: 200 2396201: 201 2397202: 202 2398203: 203 2399204: 204 2400205: 205 2401206: 206 2402207: 207 2403208: 208 2404209: 209 2405210: 210 2406211: 211 2407212: 212 2408213: 213 2409214: 214 2410215: 215 2411216: 216 2412217: 217 2413218: 218 2414219: 219 2415220: 220 2416221: 221 2417222: 222 2418223: 223 2419224: 224 2420225: 225 2421226: 226 2422227: 227 2423228: 228 2424229: 229 2425230: 230 2426231: 231 2427232: 232 2428233: 233 2429234: 234 2430235: 235 2431236: 236 2432237: 237 2433238: 238 2434239: 239 2435240: 240 2436241: 241 2437242: 242 2438243: 243 2439244: 244 2440245: 245 2441246: 246 2442247: 247 2443248: 248 2444249: 249 2445250: 250 2446251: 251 2447252: 252 2448253: 253 2449254: 254 2450255: 255 2451256: 256 2452257: 257 2453258: 258 2454259: 259 2455260: 260 2456261: 261 2457262: 262 2458263: 263 2459264: 264 2460265: 265 2461266: 266 2462267: 267 2463268: 268 2464269: 269 2465270: ABC 2466271: ABC 2467 2468/This one's here because Perl does this differently and PCRE can't at present/I 2469Capturing subpattern count = 0 2470No options 2471First char = 'T' 2472Need char = 't' 2473 2474/(main(O)?)+/I 2475Capturing subpattern count = 2 2476No options 2477First char = 'm' 2478Need char = 'n' 2479 mainmain 2480 0: mainmain 2481 1: main 2482 mainOmain 2483 0: mainOmain 2484 1: main 2485 2: O 2486 2487/These are all cases where Perl does it differently (nested captures)/I 2488Capturing subpattern count = 1 2489No options 2490First char = 'T' 2491Need char = 's' 2492 2493/^(a(b)?)+$/I 2494Capturing subpattern count = 2 2495Options: anchored 2496No first char 2497No need char 2498 aba 2499 0: aba 2500 1: a 2501 2: b 2502 2503/^(aa(bb)?)+$/I 2504Capturing subpattern count = 2 2505Options: anchored 2506No first char 2507No need char 2508 aabbaa 2509 0: aabbaa 2510 1: aa 2511 2: bb 2512 2513/^(aa|aa(bb))+$/I 2514Capturing subpattern count = 2 2515Options: anchored 2516No first char 2517No need char 2518 aabbaa 2519 0: aabbaa 2520 1: aa 2521 2: bb 2522 2523/^(aa(bb)??)+$/I 2524Capturing subpattern count = 2 2525Options: anchored 2526No first char 2527No need char 2528 aabbaa 2529 0: aabbaa 2530 1: aa 2531 2: bb 2532 2533/^(?:aa(bb)?)+$/I 2534Capturing subpattern count = 1 2535Options: anchored 2536No first char 2537No need char 2538 aabbaa 2539 0: aabbaa 2540 1: bb 2541 2542/^(aa(b(b))?)+$/I 2543Capturing subpattern count = 3 2544Options: anchored 2545No first char 2546No need char 2547 aabbaa 2548 0: aabbaa 2549 1: aa 2550 2: bb 2551 3: b 2552 2553/^(?:aa(b(b))?)+$/I 2554Capturing subpattern count = 2 2555Options: anchored 2556No first char 2557No need char 2558 aabbaa 2559 0: aabbaa 2560 1: bb 2561 2: b 2562 2563/^(?:aa(b(?:b))?)+$/I 2564Capturing subpattern count = 1 2565Options: anchored 2566No first char 2567No need char 2568 aabbaa 2569 0: aabbaa 2570 1: bb 2571 2572/^(?:aa(bb(?:b))?)+$/I 2573Capturing subpattern count = 1 2574Options: anchored 2575No first char 2576No need char 2577 aabbbaa 2578 0: aabbbaa 2579 1: bbb 2580 2581/^(?:aa(b(?:bb))?)+$/I 2582Capturing subpattern count = 1 2583Options: anchored 2584No first char 2585No need char 2586 aabbbaa 2587 0: aabbbaa 2588 1: bbb 2589 2590/^(?:aa(?:b(b))?)+$/I 2591Capturing subpattern count = 1 2592Options: anchored 2593No first char 2594No need char 2595 aabbaa 2596 0: aabbaa 2597 1: b 2598 2599/^(?:aa(?:b(bb))?)+$/I 2600Capturing subpattern count = 1 2601Options: anchored 2602No first char 2603No need char 2604 aabbbaa 2605 0: aabbbaa 2606 1: bb 2607 2608/^(aa(b(bb))?)+$/I 2609Capturing subpattern count = 3 2610Options: anchored 2611No first char 2612No need char 2613 aabbbaa 2614 0: aabbbaa 2615 1: aa 2616 2: bbb 2617 3: bb 2618 2619/^(aa(bb(bb))?)+$/I 2620Capturing subpattern count = 3 2621Options: anchored 2622No first char 2623No need char 2624 aabbbbaa 2625 0: aabbbbaa 2626 1: aa 2627 2: bbbb 2628 3: bb 2629 2630/--------------------------------------------------------------------/I 2631Capturing subpattern count = 0 2632No options 2633First char = '-' 2634Need char = '-' 2635 2636/#/IxDZ 2637------------------------------------------------------------------ 2638 Bra 2639 Ket 2640 End 2641------------------------------------------------------------------ 2642Capturing subpattern count = 0 2643Options: extended 2644No first char 2645No need char 2646 2647/a#/IxDZ 2648------------------------------------------------------------------ 2649 Bra 2650 a 2651 Ket 2652 End 2653------------------------------------------------------------------ 2654Capturing subpattern count = 0 2655Options: extended 2656First char = 'a' 2657No need char 2658 2659/[\s]/DZ 2660------------------------------------------------------------------ 2661 Bra 2662 [\x09\x0a\x0c\x0d ] 2663 Ket 2664 End 2665------------------------------------------------------------------ 2666Capturing subpattern count = 0 2667No options 2668No first char 2669No need char 2670 2671/[\S]/DZ 2672------------------------------------------------------------------ 2673 Bra 2674 [\x00-\x08\x0b\x0e-\x1f!-\xff] (neg) 2675 Ket 2676 End 2677------------------------------------------------------------------ 2678Capturing subpattern count = 0 2679No options 2680No first char 2681No need char 2682 2683/a(?i)b/DZ 2684------------------------------------------------------------------ 2685 Bra 2686 a 2687 /i b 2688 Ket 2689 End 2690------------------------------------------------------------------ 2691Capturing subpattern count = 0 2692No options 2693First char = 'a' 2694Need char = 'b' (caseless) 2695 ab 2696 0: ab 2697 aB 2698 0: aB 2699 *** Failers 2700No match 2701 AB 2702No match 2703 2704/(a(?i)b)/DZ 2705------------------------------------------------------------------ 2706 Bra 2707 CBra 1 2708 a 2709 /i b 2710 Ket 2711 Ket 2712 End 2713------------------------------------------------------------------ 2714Capturing subpattern count = 1 2715No options 2716First char = 'a' 2717Need char = 'b' (caseless) 2718 ab 2719 0: ab 2720 1: ab 2721 aB 2722 0: aB 2723 1: aB 2724 *** Failers 2725No match 2726 AB 2727No match 2728 2729/ (?i)abc/IxDZ 2730------------------------------------------------------------------ 2731 Bra 2732 /i abc 2733 Ket 2734 End 2735------------------------------------------------------------------ 2736Capturing subpattern count = 0 2737Options: caseless extended 2738First char = 'a' (caseless) 2739Need char = 'c' (caseless) 2740 2741/#this is a comment 2742 (?i)abc/IxDZ 2743------------------------------------------------------------------ 2744 Bra 2745 /i abc 2746 Ket 2747 End 2748------------------------------------------------------------------ 2749Capturing subpattern count = 0 2750Options: caseless extended 2751First char = 'a' (caseless) 2752Need char = 'c' (caseless) 2753 2754/123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/DZ 2755------------------------------------------------------------------ 2756 Bra 2757 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 2758 Ket 2759 End 2760------------------------------------------------------------------ 2761Capturing subpattern count = 0 2762No options 2763First char = '1' 2764Need char = '0' 2765 2766/\Q123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/DZ 2767------------------------------------------------------------------ 2768 Bra 2769 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 2770 Ket 2771 End 2772------------------------------------------------------------------ 2773Capturing subpattern count = 0 2774No options 2775First char = '1' 2776Need char = '0' 2777 2778/\Q\E/DZ 2779------------------------------------------------------------------ 2780 Bra 2781 Ket 2782 End 2783------------------------------------------------------------------ 2784Capturing subpattern count = 0 2785No options 2786No first char 2787No need char 2788 \ 2789 0: 2790 2791/\Q\Ex/DZ 2792------------------------------------------------------------------ 2793 Bra 2794 x 2795 Ket 2796 End 2797------------------------------------------------------------------ 2798Capturing subpattern count = 0 2799No options 2800First char = 'x' 2801No need char 2802 2803/ \Q\E/DZ 2804------------------------------------------------------------------ 2805 Bra 2806 2807 Ket 2808 End 2809------------------------------------------------------------------ 2810Capturing subpattern count = 0 2811No options 2812First char = ' ' 2813No need char 2814 2815/a\Q\E/DZ 2816------------------------------------------------------------------ 2817 Bra 2818 a 2819 Ket 2820 End 2821------------------------------------------------------------------ 2822Capturing subpattern count = 0 2823No options 2824First char = 'a' 2825No need char 2826 abc 2827 0: a 2828 bca 2829 0: a 2830 bac 2831 0: a 2832 2833/a\Q\Eb/DZ 2834------------------------------------------------------------------ 2835 Bra 2836 ab 2837 Ket 2838 End 2839------------------------------------------------------------------ 2840Capturing subpattern count = 0 2841No options 2842First char = 'a' 2843Need char = 'b' 2844 abc 2845 0: ab 2846 2847/\Q\Eabc/DZ 2848------------------------------------------------------------------ 2849 Bra 2850 abc 2851 Ket 2852 End 2853------------------------------------------------------------------ 2854Capturing subpattern count = 0 2855No options 2856First char = 'a' 2857Need char = 'c' 2858 2859/x*+\w/DZ 2860------------------------------------------------------------------ 2861 Bra 2862 x*+ 2863 \w 2864 Ket 2865 End 2866------------------------------------------------------------------ 2867Capturing subpattern count = 0 2868No options 2869No first char 2870No need char 2871 *** Failers 2872 0: F 2873 xxxxx 2874No match 2875 2876/x?+/DZ 2877------------------------------------------------------------------ 2878 Bra 2879 x?+ 2880 Ket 2881 End 2882------------------------------------------------------------------ 2883Capturing subpattern count = 0 2884No options 2885No first char 2886No need char 2887 2888/x++/DZ 2889------------------------------------------------------------------ 2890 Bra 2891 x++ 2892 Ket 2893 End 2894------------------------------------------------------------------ 2895Capturing subpattern count = 0 2896No options 2897First char = 'x' 2898No need char 2899 2900/x{1,3}+/DZ 2901------------------------------------------------------------------ 2902 Bra 2903 Once 2904 x 2905 x{0,2} 2906 Ket 2907 Ket 2908 End 2909------------------------------------------------------------------ 2910Capturing subpattern count = 0 2911No options 2912First char = 'x' 2913No need char 2914 2915/(x)*+/DZ 2916------------------------------------------------------------------ 2917 Bra 2918 Braposzero 2919 CBraPos 1 2920 x 2921 KetRpos 2922 Ket 2923 End 2924------------------------------------------------------------------ 2925Capturing subpattern count = 1 2926No options 2927No first char 2928No need char 2929 2930/^(\w++|\s++)*$/I 2931Capturing subpattern count = 1 2932Options: anchored 2933No first char 2934No need char 2935 now is the time for all good men to come to the aid of the party 2936 0: now is the time for all good men to come to the aid of the party 2937 1: party 2938 *** Failers 2939No match 2940 this is not a line with only words and spaces! 2941No match 2942 2943/(\d++)(\w)/I 2944Capturing subpattern count = 2 2945No options 2946No first char 2947No need char 2948 12345a 2949 0: 12345a 2950 1: 12345 2951 2: a 2952 *** Failers 2953No match 2954 12345+ 2955No match 2956 2957/a++b/I 2958Capturing subpattern count = 0 2959No options 2960First char = 'a' 2961Need char = 'b' 2962 aaab 2963 0: aaab 2964 2965/(a++b)/I 2966Capturing subpattern count = 1 2967No options 2968First char = 'a' 2969Need char = 'b' 2970 aaab 2971 0: aaab 2972 1: aaab 2973 2974/(a++)b/I 2975Capturing subpattern count = 1 2976No options 2977First char = 'a' 2978Need char = 'b' 2979 aaab 2980 0: aaab 2981 1: aaa 2982 2983/([^()]++|\([^()]*\))+/I 2984Capturing subpattern count = 1 2985No options 2986No first char 2987No need char 2988 ((abc(ade)ufh()()x 2989 0: abc(ade)ufh()()x 2990 1: x 2991 2992/\(([^()]++|\([^()]+\))+\)/I 2993Capturing subpattern count = 1 2994No options 2995First char = '(' 2996Need char = ')' 2997 (abc) 2998 0: (abc) 2999 1: abc 3000 (abc(def)xyz) 3001 0: (abc(def)xyz) 3002 1: xyz 3003 *** Failers 3004No match 3005 ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 3006No match 3007 3008/(abc){1,3}+/DZ 3009------------------------------------------------------------------ 3010 Bra 3011 Once 3012 CBra 1 3013 abc 3014 Ket 3015 Brazero 3016 Bra 3017 CBra 1 3018 abc 3019 Ket 3020 Brazero 3021 CBra 1 3022 abc 3023 Ket 3024 Ket 3025 Ket 3026 Ket 3027 End 3028------------------------------------------------------------------ 3029Capturing subpattern count = 1 3030No options 3031First char = 'a' 3032Need char = 'c' 3033 3034/a+?+/I 3035Failed: nothing to repeat at offset 3 3036 3037/a{2,3}?+b/I 3038Failed: nothing to repeat at offset 7 3039 3040/(?U)a+?+/I 3041Failed: nothing to repeat at offset 7 3042 3043/a{2,3}?+b/IU 3044Failed: nothing to repeat at offset 7 3045 3046/x(?U)a++b/DZ 3047------------------------------------------------------------------ 3048 Bra 3049 x 3050 a++ 3051 b 3052 Ket 3053 End 3054------------------------------------------------------------------ 3055Capturing subpattern count = 0 3056No options 3057First char = 'x' 3058Need char = 'b' 3059 xaaaab 3060 0: xaaaab 3061 3062/(?U)xa++b/DZ 3063------------------------------------------------------------------ 3064 Bra 3065 x 3066 a++ 3067 b 3068 Ket 3069 End 3070------------------------------------------------------------------ 3071Capturing subpattern count = 0 3072Options: ungreedy 3073First char = 'x' 3074Need char = 'b' 3075 xaaaab 3076 0: xaaaab 3077 3078/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/DZ 3079------------------------------------------------------------------ 3080 Bra 3081 ^ 3082 CBra 1 3083 CBra 2 3084 a+ 3085 Ket 3086 CBra 3 3087 [ab]+? 3088 Ket 3089 CBra 4 3090 [bc]+ 3091 Ket 3092 CBra 5 3093 \w* 3094 Ket 3095 Ket 3096 Ket 3097 End 3098------------------------------------------------------------------ 3099Capturing subpattern count = 5 3100Options: anchored 3101No first char 3102No need char 3103 3104/^x(?U)a+b/DZ 3105------------------------------------------------------------------ 3106 Bra 3107 ^ 3108 x 3109 a++ 3110 b 3111 Ket 3112 End 3113------------------------------------------------------------------ 3114Capturing subpattern count = 0 3115Options: anchored 3116No first char 3117Need char = 'b' 3118 3119/^x(?U)(a+)b/DZ 3120------------------------------------------------------------------ 3121 Bra 3122 ^ 3123 x 3124 CBra 1 3125 a+? 3126 Ket 3127 b 3128 Ket 3129 End 3130------------------------------------------------------------------ 3131Capturing subpattern count = 1 3132Options: anchored 3133No first char 3134Need char = 'b' 3135 3136/[.x.]/I 3137Failed: POSIX collating elements are not supported at offset 0 3138 3139/[=x=]/I 3140Failed: POSIX collating elements are not supported at offset 0 3141 3142/[:x:]/I 3143Failed: POSIX named classes are supported only within a class at offset 0 3144 3145/\l/I 3146Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 3147 3148/\L/I 3149Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 3150 3151/\N{name}/I 3152Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 3153 3154/\u/I 3155Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 3156 3157/\U/I 3158Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 3159 3160/[/I 3161Failed: missing terminating ] for character class at offset 1 3162 3163/[a-/I 3164Failed: missing terminating ] for character class at offset 3 3165 3166/[[:space:]/I 3167Failed: missing terminating ] for character class at offset 10 3168 3169/[\s]/IDZ 3170------------------------------------------------------------------ 3171 Bra 3172 [\x09\x0a\x0c\x0d ] 3173 Ket 3174 End 3175------------------------------------------------------------------ 3176Capturing subpattern count = 0 3177No options 3178No first char 3179No need char 3180 3181/[[:space:]]/IDZ 3182------------------------------------------------------------------ 3183 Bra 3184 [\x09-\x0d ] 3185 Ket 3186 End 3187------------------------------------------------------------------ 3188Capturing subpattern count = 0 3189No options 3190No first char 3191No need char 3192 3193/[[:space:]abcde]/IDZ 3194------------------------------------------------------------------ 3195 Bra 3196 [\x09-\x0d a-e] 3197 Ket 3198 End 3199------------------------------------------------------------------ 3200Capturing subpattern count = 0 3201No options 3202No first char 3203No need char 3204 3205/< (?: (?(R) \d++ | [^<>]*+) | (?R)) * >/Ix 3206Capturing subpattern count = 0 3207Options: extended 3208First char = '<' 3209Need char = '>' 3210 <> 3211 0: <> 3212 <abcd> 3213 0: <abcd> 3214 <abc <123> hij> 3215 0: <abc <123> hij> 3216 <abc <def> hij> 3217 0: <def> 3218 <abc<>def> 3219 0: <abc<>def> 3220 <abc<> 3221 0: <> 3222 *** Failers 3223No match 3224 <abc 3225No match 3226 3227|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|IDZ 3228------------------------------------------------------------------ 3229 Bra 3230 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 3231 \b 3232 Ket 3233 End 3234------------------------------------------------------------------ 3235Capturing subpattern count = 0 3236No options 3237First char = '8' 3238Need char = 'X' 3239Max lookbehind = 1 3240 3241|\$\<\.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|IDZ 3242------------------------------------------------------------------ 3243 Bra 3244 $<.X+ix[d1b!H#?vV0vrK:ZH1=2M>iV;?aPhFB<*vW@QW@sO9}cfZA-i'w%hKd6gt1UJP,15_#QY$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 3245 \b 3246 Ket 3247 End 3248------------------------------------------------------------------ 3249Capturing subpattern count = 0 3250No options 3251First char = '$' 3252Need char = 'X' 3253Max lookbehind = 1 3254 3255/(.*)\d+\1/I 3256Capturing subpattern count = 1 3257Max back reference = 1 3258No options 3259No first char 3260No need char 3261 3262/(.*)\d+/I 3263Capturing subpattern count = 1 3264No options 3265First char at start or follows newline 3266No need char 3267 3268/(.*)\d+\1/Is 3269Capturing subpattern count = 1 3270Max back reference = 1 3271Options: dotall 3272No first char 3273No need char 3274 3275/(.*)\d+/Is 3276Capturing subpattern count = 1 3277Options: anchored dotall 3278No first char 3279No need char 3280 3281/(.*(xyz))\d+\2/I 3282Capturing subpattern count = 2 3283Max back reference = 2 3284No options 3285First char at start or follows newline 3286Need char = 'z' 3287 3288/((.*))\d+\1/I 3289Capturing subpattern count = 2 3290Max back reference = 1 3291No options 3292No first char 3293No need char 3294 abc123bc 3295 0: bc123bc 3296 1: bc 3297 2: bc 3298 3299/a[b]/I 3300Capturing subpattern count = 0 3301No options 3302First char = 'a' 3303Need char = 'b' 3304 3305/(?=a).*/I 3306Capturing subpattern count = 0 3307No options 3308First char = 'a' 3309No need char 3310 3311/(?=abc).xyz/IiI 3312Capturing subpattern count = 0 3313Options: caseless 3314First char = 'a' (caseless) 3315Need char = 'z' (caseless) 3316 3317/(?=abc)(?i).xyz/I 3318Capturing subpattern count = 0 3319No options 3320First char = 'a' 3321Need char = 'z' (caseless) 3322 3323/(?=a)(?=b)/I 3324Capturing subpattern count = 0 3325No options 3326First char = 'a' 3327No need char 3328 3329/(?=.)a/I 3330Capturing subpattern count = 0 3331No options 3332First char = 'a' 3333No need char 3334 3335/((?=abcda)a)/I 3336Capturing subpattern count = 1 3337No options 3338First char = 'a' 3339Need char = 'a' 3340 3341/((?=abcda)ab)/I 3342Capturing subpattern count = 1 3343No options 3344First char = 'a' 3345Need char = 'b' 3346 3347/()a/I 3348Capturing subpattern count = 1 3349No options 3350No first char 3351Need char = 'a' 3352 3353/(?(1)ab|ac)(.)/I 3354Capturing subpattern count = 1 3355No options 3356First char = 'a' 3357No need char 3358 3359/(?(1)abz|acz)(.)/I 3360Capturing subpattern count = 1 3361No options 3362First char = 'a' 3363Need char = 'z' 3364 3365/(?(1)abz)(.)/I 3366Capturing subpattern count = 1 3367No options 3368No first char 3369No need char 3370 3371/(?(1)abz)(1)23/I 3372Capturing subpattern count = 1 3373No options 3374No first char 3375Need char = '3' 3376 3377/(a)+/I 3378Capturing subpattern count = 1 3379No options 3380First char = 'a' 3381No need char 3382 3383/(a){2,3}/I 3384Capturing subpattern count = 1 3385No options 3386First char = 'a' 3387Need char = 'a' 3388 3389/(a)*/I 3390Capturing subpattern count = 1 3391No options 3392No first char 3393No need char 3394 3395/[a]/I 3396Capturing subpattern count = 0 3397No options 3398First char = 'a' 3399No need char 3400 3401/[ab]/I 3402Capturing subpattern count = 0 3403No options 3404No first char 3405No need char 3406 3407/[ab]/IS 3408Capturing subpattern count = 0 3409No options 3410No first char 3411No need char 3412Subject length lower bound = 1 3413Starting byte set: a b 3414 3415/[^a]/I 3416Capturing subpattern count = 0 3417No options 3418No first char 3419No need char 3420 3421/\d456/I 3422Capturing subpattern count = 0 3423No options 3424No first char 3425Need char = '6' 3426 3427/\d456/IS 3428Capturing subpattern count = 0 3429No options 3430No first char 3431Need char = '6' 3432Subject length lower bound = 4 3433Starting byte set: 0 1 2 3 4 5 6 7 8 9 3434 3435/a^b/I 3436Capturing subpattern count = 0 3437No options 3438First char = 'a' 3439Need char = 'b' 3440 3441/^a/Im 3442Capturing subpattern count = 0 3443Options: multiline 3444First char at start or follows newline 3445Need char = 'a' 3446 abcde 3447 0: a 3448 xy\nabc 3449 0: a 3450 *** Failers 3451No match 3452 xyabc 3453No match 3454 3455/c|abc/I 3456Capturing subpattern count = 0 3457No options 3458No first char 3459Need char = 'c' 3460 3461/(?i)[ab]/IS 3462Capturing subpattern count = 0 3463Options: caseless 3464No first char 3465No need char 3466Subject length lower bound = 1 3467Starting byte set: A B a b 3468 3469/[ab](?i)cd/IS 3470Capturing subpattern count = 0 3471No options 3472No first char 3473Need char = 'd' (caseless) 3474Subject length lower bound = 3 3475Starting byte set: a b 3476 3477/abc(?C)def/I 3478Capturing subpattern count = 0 3479No options 3480First char = 'a' 3481Need char = 'f' 3482 abcdef 3483--->abcdef 3484 0 ^ ^ d 3485 0: abcdef 3486 1234abcdef 3487--->1234abcdef 3488 0 ^ ^ d 3489 0: abcdef 3490 *** Failers 3491No match 3492 abcxyz 3493No match 3494 abcxyzf 3495--->abcxyzf 3496 0 ^ ^ d 3497No match 3498 3499/abc(?C)de(?C1)f/I 3500Capturing subpattern count = 0 3501No options 3502First char = 'a' 3503Need char = 'f' 3504 123abcdef 3505--->123abcdef 3506 0 ^ ^ d 3507 1 ^ ^ f 3508 0: abcdef 3509 3510/(?C1)\dabc(?C2)def/IS 3511Capturing subpattern count = 0 3512No options 3513No first char 3514Need char = 'f' 3515Subject length lower bound = 7 3516Starting byte set: 0 1 2 3 4 5 6 7 8 9 3517 1234abcdef 3518--->1234abcdef 3519 1 ^ \d 3520 1 ^ \d 3521 1 ^ \d 3522 1 ^ \d 3523 2 ^ ^ d 3524 0: 4abcdef 3525 *** Failers 3526No match 3527 abcdef 3528No match 3529 3530/(?C1)\dabc(?C2)def/ISS 3531Capturing subpattern count = 0 3532No options 3533No first char 3534Need char = 'f' 3535 1234abcdef 3536--->1234abcdef 3537 1 ^ \d 3538 1 ^ \d 3539 1 ^ \d 3540 1 ^ \d 3541 2 ^ ^ d 3542 0: 4abcdef 3543 *** Failers 3544No match 3545 abcdef 3546--->abcdef 3547 1 ^ \d 3548 1 ^ \d 3549 1 ^ \d 3550 1 ^ \d 3551 1 ^ \d 3552 1 ^ \d 3553No match 3554 3555/(?C255)ab/I 3556Capturing subpattern count = 0 3557No options 3558First char = 'a' 3559Need char = 'b' 3560 3561/(?C256)ab/I 3562Failed: number after (?C is > 255 at offset 6 3563 3564/(?Cab)xx/I 3565Failed: closing ) for (?C expected at offset 3 3566 3567/(?C12vr)x/I 3568Failed: closing ) for (?C expected at offset 5 3569 3570/abc(?C)def/I 3571Capturing subpattern count = 0 3572No options 3573First char = 'a' 3574Need char = 'f' 3575 *** Failers 3576No match 3577 \x83\x0\x61bcdef 3578--->\x83\x00abcdef 3579 0 ^ ^ d 3580 0: abcdef 3581 3582/(abc)(?C)de(?C1)f/I 3583Capturing subpattern count = 1 3584No options 3585First char = 'a' 3586Need char = 'f' 3587 123abcdef 3588--->123abcdef 3589 0 ^ ^ d 3590 1 ^ ^ f 3591 0: abcdef 3592 1: abc 3593 123abcdef\C+ 3594Callout 0: last capture = 1 3595 0: <unset> 3596 1: abc 3597--->123abcdef 3598 ^ ^ d 3599Callout 1: last capture = 1 3600 0: <unset> 3601 1: abc 3602--->123abcdef 3603 ^ ^ f 3604 0: abcdef 3605 1: abc 3606 123abcdef\C- 3607 0: abcdef 3608 1: abc 3609 *** Failers 3610No match 3611 123abcdef\C!1 3612--->123abcdef 3613 0 ^ ^ d 3614 1 ^ ^ f 3615No match 3616 3617/(?C0)(abc(?C1))*/I 3618Capturing subpattern count = 1 3619No options 3620No first char 3621No need char 3622 abcabcabc 3623--->abcabcabc 3624 0 ^ (abc(?C1))* 3625 1 ^ ^ ) 3626 1 ^ ^ ) 3627 1 ^ ^ ) 3628 0: abcabcabc 3629 1: abc 3630 abcabc\C!1!3 3631--->abcabc 3632 0 ^ (abc(?C1))* 3633 1 ^ ^ ) 3634 1 ^ ^ ) 3635 0: abcabc 3636 1: abc 3637 *** Failers 3638--->*** Failers 3639 0 ^ (abc(?C1))* 3640 0: 3641 abcabcabc\C!1!3 3642--->abcabcabc 3643 0 ^ (abc(?C1))* 3644 1 ^ ^ ) 3645 1 ^ ^ ) 3646 1 ^ ^ ) 3647 0: abcabc 3648 1: abc 3649 3650/(\d{3}(?C))*/I 3651Capturing subpattern count = 1 3652No options 3653No first char 3654No need char 3655 123\C+ 3656Callout 0: last capture = -1 3657 0: <unset> 3658--->123 3659 ^ ^ ) 3660 0: 123 3661 1: 123 3662 123456\C+ 3663Callout 0: last capture = -1 3664 0: <unset> 3665--->123456 3666 ^ ^ ) 3667Callout 0: last capture = 1 3668 0: <unset> 3669 1: 123 3670--->123456 3671 ^ ^ ) 3672 0: 123456 3673 1: 456 3674 123456789\C+ 3675Callout 0: last capture = -1 3676 0: <unset> 3677--->123456789 3678 ^ ^ ) 3679Callout 0: last capture = 1 3680 0: <unset> 3681 1: 123 3682--->123456789 3683 ^ ^ ) 3684Callout 0: last capture = 1 3685 0: <unset> 3686 1: 456 3687--->123456789 3688 ^ ^ ) 3689 0: 123456789 3690 1: 789 3691 3692/((xyz)(?C)p|(?C1)xyzabc)/I 3693Capturing subpattern count = 2 3694No options 3695First char = 'x' 3696No need char 3697 xyzabc\C+ 3698Callout 0: last capture = 2 3699 0: <unset> 3700 1: <unset> 3701 2: xyz 3702--->xyzabc 3703 ^ ^ p 3704Callout 1: last capture = -1 3705 0: <unset> 3706--->xyzabc 3707 ^ x 3708 0: xyzabc 3709 1: xyzabc 3710 3711/(X)((xyz)(?C)p|(?C1)xyzabc)/I 3712Capturing subpattern count = 3 3713No options 3714First char = 'X' 3715Need char = 'x' 3716 Xxyzabc\C+ 3717Callout 0: last capture = 3 3718 0: <unset> 3719 1: X 3720 2: <unset> 3721 3: xyz 3722--->Xxyzabc 3723 ^ ^ p 3724Callout 1: last capture = 1 3725 0: <unset> 3726 1: X 3727--->Xxyzabc 3728 ^^ x 3729 0: Xxyzabc 3730 1: X 3731 2: xyzabc 3732 3733/(?=(abc))(?C)abcdef/I 3734Capturing subpattern count = 1 3735No options 3736First char = 'a' 3737Need char = 'f' 3738 abcdef\C+ 3739Callout 0: last capture = 1 3740 0: <unset> 3741 1: abc 3742--->abcdef 3743 ^ a 3744 0: abcdef 3745 1: abc 3746 3747/(?!(abc)(?C1)d)(?C2)abcxyz/I 3748Capturing subpattern count = 1 3749No options 3750First char = 'a' 3751Need char = 'z' 3752 abcxyz\C+ 3753Callout 1: last capture = 1 3754 0: <unset> 3755 1: abc 3756--->abcxyz 3757 ^ ^ d 3758Callout 2: last capture = -1 3759 0: <unset> 3760--->abcxyz 3761 ^ a 3762 0: abcxyz 3763 3764/(?<=(abc)(?C))xyz/I 3765Capturing subpattern count = 1 3766No options 3767First char = 'x' 3768Need char = 'z' 3769Max lookbehind = 3 3770 abcxyz\C+ 3771Callout 0: last capture = 1 3772 0: <unset> 3773 1: abc 3774--->abcxyz 3775 ^ ) 3776 0: xyz 3777 1: abc 3778 3779/a(b+)(c*)(?C1)/I 3780Capturing subpattern count = 2 3781No options 3782First char = 'a' 3783Need char = 'b' 3784 abbbbbccc\C*1 3785--->abbbbbccc 3786 1 ^ ^ 3787Callout data = 1 3788 1 ^ ^ 3789Callout data = 1 3790 1 ^ ^ 3791Callout data = 1 3792 1 ^ ^ 3793Callout data = 1 3794 1 ^ ^ 3795Callout data = 1 3796 1 ^ ^ 3797Callout data = 1 3798 1 ^ ^ 3799Callout data = 1 3800 1 ^ ^ 3801Callout data = 1 3802No match 3803 3804/a(b+?)(c*?)(?C1)/I 3805Capturing subpattern count = 2 3806No options 3807First char = 'a' 3808Need char = 'b' 3809 abbbbbccc\C*1 3810--->abbbbbccc 3811 1 ^ ^ 3812Callout data = 1 3813 1 ^ ^ 3814Callout data = 1 3815 1 ^ ^ 3816Callout data = 1 3817 1 ^ ^ 3818Callout data = 1 3819 1 ^ ^ 3820Callout data = 1 3821 1 ^ ^ 3822Callout data = 1 3823 1 ^ ^ 3824Callout data = 1 3825 1 ^ ^ 3826Callout data = 1 3827No match 3828 3829/(?C)abc/I 3830Capturing subpattern count = 0 3831No options 3832First char = 'a' 3833Need char = 'c' 3834 3835/(?C)^abc/I 3836Capturing subpattern count = 0 3837Options: anchored 3838No first char 3839No need char 3840 3841/(?C)a|b/IS 3842Capturing subpattern count = 0 3843No options 3844No first char 3845No need char 3846Subject length lower bound = 1 3847Starting byte set: a b 3848 3849/(?R)/I 3850Failed: recursive call could loop indefinitely at offset 3 3851 3852/(a|(?R))/I 3853Failed: recursive call could loop indefinitely at offset 6 3854 3855/(ab|(bc|(de|(?R))))/I 3856Failed: recursive call could loop indefinitely at offset 15 3857 3858/x(ab|(bc|(de|(?R))))/I 3859Capturing subpattern count = 3 3860No options 3861First char = 'x' 3862No need char 3863 xab 3864 0: xab 3865 1: ab 3866 xbc 3867 0: xbc 3868 1: bc 3869 2: bc 3870 xde 3871 0: xde 3872 1: de 3873 2: de 3874 3: de 3875 xxab 3876 0: xxab 3877 1: xab 3878 2: xab 3879 3: xab 3880 xxxab 3881 0: xxxab 3882 1: xxab 3883 2: xxab 3884 3: xxab 3885 *** Failers 3886No match 3887 xyab 3888No match 3889 3890/(ab|(bc|(de|(?1))))/I 3891Failed: recursive call could loop indefinitely at offset 15 3892 3893/x(ab|(bc|(de|(?1)x)x)x)/I 3894Failed: recursive call could loop indefinitely at offset 16 3895 3896/^([^()]|\((?1)*\))*$/I 3897Capturing subpattern count = 1 3898Options: anchored 3899No first char 3900No need char 3901 abc 3902 0: abc 3903 1: c 3904 a(b)c 3905 0: a(b)c 3906 1: c 3907 a(b(c))d 3908 0: a(b(c))d 3909 1: d 3910 *** Failers) 3911No match 3912 a(b(c)d 3913No match 3914 3915/^>abc>([^()]|\((?1)*\))*<xyz<$/I 3916Capturing subpattern count = 1 3917Options: anchored 3918No first char 3919Need char = '<' 3920 >abc>123<xyz< 3921 0: >abc>123<xyz< 3922 1: 3 3923 >abc>1(2)3<xyz< 3924 0: >abc>1(2)3<xyz< 3925 1: 3 3926 >abc>(1(2)3)<xyz< 3927 0: >abc>(1(2)3)<xyz< 3928 1: (1(2)3) 3929 3930/(a(?1)b)/DZ 3931------------------------------------------------------------------ 3932 Bra 3933 CBra 1 3934 a 3935 Recurse 3936 b 3937 Ket 3938 Ket 3939 End 3940------------------------------------------------------------------ 3941Capturing subpattern count = 1 3942No options 3943First char = 'a' 3944Need char = 'b' 3945 3946/(a(?1)+b)/DZ 3947------------------------------------------------------------------ 3948 Bra 3949 CBra 1 3950 a 3951 Once 3952 Recurse 3953 KetRmax 3954 b 3955 Ket 3956 Ket 3957 End 3958------------------------------------------------------------------ 3959Capturing subpattern count = 1 3960No options 3961First char = 'a' 3962Need char = 'b' 3963 3964/^(\d+|\((?1)([+*-])(?1)\)|-(?1))$/I 3965Capturing subpattern count = 2 3966Options: anchored 3967No first char 3968No need char 3969 12 3970 0: 12 3971 1: 12 3972 (((2+2)*-3)-7) 3973 0: (((2+2)*-3)-7) 3974 1: (((2+2)*-3)-7) 3975 2: - 3976 -12 3977 0: -12 3978 1: -12 3979 *** Failers 3980No match 3981 ((2+2)*-3)-7) 3982No match 3983 3984/^(x(y|(?1){2})z)/I 3985Capturing subpattern count = 2 3986Options: anchored 3987No first char 3988No need char 3989 xyz 3990 0: xyz 3991 1: xyz 3992 2: y 3993 xxyzxyzz 3994 0: xxyzxyzz 3995 1: xxyzxyzz 3996 2: xyzxyz 3997 *** Failers 3998No match 3999 xxyzz 4000No match 4001 xxyzxyzxyzz 4002No match 4003 4004/((< (?: (?(R) \d++ | [^<>]*+) | (?2)) * >))/Ix 4005Capturing subpattern count = 2 4006Options: extended 4007First char = '<' 4008Need char = '>' 4009 <> 4010 0: <> 4011 1: <> 4012 2: <> 4013 <abcd> 4014 0: <abcd> 4015 1: <abcd> 4016 2: <abcd> 4017 <abc <123> hij> 4018 0: <abc <123> hij> 4019 1: <abc <123> hij> 4020 2: <abc <123> hij> 4021 <abc <def> hij> 4022 0: <def> 4023 1: <def> 4024 2: <def> 4025 <abc<>def> 4026 0: <abc<>def> 4027 1: <abc<>def> 4028 2: <abc<>def> 4029 <abc<> 4030 0: <> 4031 1: <> 4032 2: <> 4033 *** Failers 4034No match 4035 <abc 4036No match 4037 4038/(?1)/I 4039Failed: reference to non-existent subpattern at offset 3 4040 4041/((?2)(abc)/I 4042Failed: missing ) at offset 10 4043 4044/^(abc)def(?1)/I 4045Capturing subpattern count = 1 4046Options: anchored 4047No first char 4048No need char 4049 abcdefabc 4050 0: abcdefabc 4051 1: abc 4052 4053/^(a|b|c)=(?1)+/I 4054Capturing subpattern count = 1 4055Options: anchored 4056No first char 4057No need char 4058 a=a 4059 0: a=a 4060 1: a 4061 a=b 4062 0: a=b 4063 1: a 4064 a=bc 4065 0: a=bc 4066 1: a 4067 4068/^(a|b|c)=((?1))+/I 4069Capturing subpattern count = 2 4070Options: anchored 4071No first char 4072No need char 4073 a=a 4074 0: a=a 4075 1: a 4076 2: a 4077 a=b 4078 0: a=b 4079 1: a 4080 2: b 4081 a=bc 4082 0: a=bc 4083 1: a 4084 2: c 4085 4086/a(?P<name1>b|c)d(?P<longername2>e)/DZ 4087------------------------------------------------------------------ 4088 Bra 4089 a 4090 CBra 1 4091 b 4092 Alt 4093 c 4094 Ket 4095 d 4096 CBra 2 4097 e 4098 Ket 4099 Ket 4100 End 4101------------------------------------------------------------------ 4102Capturing subpattern count = 2 4103Named capturing subpatterns: 4104 longername2 2 4105 name1 1 4106No options 4107First char = 'a' 4108Need char = 'e' 4109 abde 4110 0: abde 4111 1: b 4112 2: e 4113 acde 4114 0: acde 4115 1: c 4116 2: e 4117 4118/(?:a(?P<c>c(?P<d>d)))(?P<a>a)/DZ 4119------------------------------------------------------------------ 4120 Bra 4121 Bra 4122 a 4123 CBra 1 4124 c 4125 CBra 2 4126 d 4127 Ket 4128 Ket 4129 Ket 4130 CBra 3 4131 a 4132 Ket 4133 Ket 4134 End 4135------------------------------------------------------------------ 4136Capturing subpattern count = 3 4137Named capturing subpatterns: 4138 a 3 4139 c 1 4140 d 2 4141No options 4142First char = 'a' 4143Need char = 'a' 4144 4145/(?P<a>a)...(?P=a)bbb(?P>a)d/DZ 4146------------------------------------------------------------------ 4147 Bra 4148 CBra 1 4149 a 4150 Ket 4151 Any 4152 Any 4153 Any 4154 \1 4155 bbb 4156 Recurse 4157 d 4158 Ket 4159 End 4160------------------------------------------------------------------ 4161Capturing subpattern count = 1 4162Max back reference = 1 4163Named capturing subpatterns: 4164 a 1 4165No options 4166First char = 'a' 4167Need char = 'd' 4168 4169/^\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 4170Capturing subpattern count = 4 4171Max back reference = 4 4172Named capturing subpatterns: 4173 four 4 4174 one 1 4175 three 3 4176 two 2 4177Options: anchored caseless 4178No first char 4179No need char 4180 1221 4181 0: 1221 4182 1: 1221 4183 2: 1 4184 Satan, oscillate my metallic sonatas! 4185 0: Satan, oscillate my metallic sonatas! 4186 1: <unset> 4187 2: <unset> 4188 3: Satan, oscillate my metallic sonatas 4189 4: S 4190 A man, a plan, a canal: Panama! 4191 0: A man, a plan, a canal: Panama! 4192 1: <unset> 4193 2: <unset> 4194 3: A man, a plan, a canal: Panama 4195 4: A 4196 Able was I ere I saw Elba. 4197 0: Able was I ere I saw Elba. 4198 1: <unset> 4199 2: <unset> 4200 3: Able was I ere I saw Elba 4201 4: A 4202 *** Failers 4203No match 4204 The quick brown fox 4205No match 4206 4207/((?(R)a|b))\1(?1)?/I 4208Capturing subpattern count = 1 4209Max back reference = 1 4210No options 4211No first char 4212No need char 4213 bb 4214 0: bb 4215 1: b 4216 bbaa 4217 0: bba 4218 1: b 4219 4220/(.*)a/Is 4221Capturing subpattern count = 1 4222Options: anchored dotall 4223No first char 4224Need char = 'a' 4225 4226/(.*)a\1/Is 4227Capturing subpattern count = 1 4228Max back reference = 1 4229Options: dotall 4230No first char 4231Need char = 'a' 4232 4233/(.*)a(b)\2/Is 4234Capturing subpattern count = 2 4235Max back reference = 2 4236Options: anchored dotall 4237No first char 4238Need char = 'b' 4239 4240/((.*)a|(.*)b)z/Is 4241Capturing subpattern count = 3 4242Options: anchored dotall 4243No first char 4244Need char = 'z' 4245 4246/((.*)a|(.*)b)z\1/Is 4247Capturing subpattern count = 3 4248Max back reference = 1 4249Options: dotall 4250No first char 4251Need char = 'z' 4252 4253/((.*)a|(.*)b)z\2/Is 4254Capturing subpattern count = 3 4255Max back reference = 2 4256Options: dotall 4257No first char 4258Need char = 'z' 4259 4260/((.*)a|(.*)b)z\3/Is 4261Capturing subpattern count = 3 4262Max back reference = 3 4263Options: dotall 4264No first char 4265Need char = 'z' 4266 4267/((.*)a|^(.*)b)z\3/Is 4268Capturing subpattern count = 3 4269Max back reference = 3 4270Options: anchored dotall 4271No first char 4272Need char = 'z' 4273 4274/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a/Is 4275Capturing subpattern count = 31 4276Options: anchored dotall 4277No first char 4278No need char 4279 4280/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\31/Is 4281Capturing subpattern count = 31 4282Max back reference = 31 4283Options: dotall 4284No first char 4285No need char 4286 4287/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\32/Is 4288Capturing subpattern count = 32 4289Max back reference = 32 4290Options: dotall 4291No first char 4292No need char 4293 4294/(a)(bc)/INDZ 4295------------------------------------------------------------------ 4296 Bra 4297 Bra 4298 a 4299 Ket 4300 Bra 4301 bc 4302 Ket 4303 Ket 4304 End 4305------------------------------------------------------------------ 4306Capturing subpattern count = 0 4307Options: no_auto_capture 4308First char = 'a' 4309Need char = 'c' 4310 abc 4311 0: abc 4312 4313/(?P<one>a)(bc)/INDZ 4314------------------------------------------------------------------ 4315 Bra 4316 CBra 1 4317 a 4318 Ket 4319 Bra 4320 bc 4321 Ket 4322 Ket 4323 End 4324------------------------------------------------------------------ 4325Capturing subpattern count = 1 4326Named capturing subpatterns: 4327 one 1 4328Options: no_auto_capture 4329First char = 'a' 4330Need char = 'c' 4331 abc 4332 0: abc 4333 1: a 4334 4335/(a)(?P<named>bc)/INDZ 4336------------------------------------------------------------------ 4337 Bra 4338 Bra 4339 a 4340 Ket 4341 CBra 1 4342 bc 4343 Ket 4344 Ket 4345 End 4346------------------------------------------------------------------ 4347Capturing subpattern count = 1 4348Named capturing subpatterns: 4349 named 1 4350Options: no_auto_capture 4351First char = 'a' 4352Need char = 'c' 4353 4354/(a+)*zz/I 4355Capturing subpattern count = 1 4356No options 4357No first char 4358Need char = 'z' 4359 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazzbbbbbb\M 4360Minimum match() limit = 8 4361Minimum match() recursion limit = 6 4362 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazz 4363 1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 4364 aaaaaaaaaaaaaz\M 4365Minimum match() limit = 32768 4366Minimum match() recursion limit = 42 4367No match 4368 4369/(aaa(?C1)bbb|ab)/I 4370Capturing subpattern count = 1 4371No options 4372First char = 'a' 4373Need char = 'b' 4374 aaabbb 4375--->aaabbb 4376 1 ^ ^ b 4377 0: aaabbb 4378 1: aaabbb 4379 aaabbb\C*0 4380--->aaabbb 4381 1 ^ ^ b 4382 0: aaabbb 4383 1: aaabbb 4384 aaabbb\C*1 4385--->aaabbb 4386 1 ^ ^ b 4387Callout data = 1 4388 0: ab 4389 1: ab 4390 aaabbb\C*-1 4391--->aaabbb 4392 1 ^ ^ b 4393Callout data = -1 4394No match 4395 4396/ab(?P<one>cd)ef(?P<two>gh)/I 4397Capturing subpattern count = 2 4398Named capturing subpatterns: 4399 one 1 4400 two 2 4401No options 4402First char = 'a' 4403Need char = 'h' 4404 abcdefgh 4405 0: abcdefgh 4406 1: cd 4407 2: gh 4408 abcdefgh\C1\Gtwo 4409 0: abcdefgh 4410 1: cd 4411 2: gh 4412 1C cd (2) 4413 G gh (2) two 4414 abcdefgh\Cone\Ctwo 4415 0: abcdefgh 4416 1: cd 4417 2: gh 4418 C cd (2) one 4419 C gh (2) two 4420 abcdefgh\Cthree 4421no parentheses with name "three" 4422 0: abcdefgh 4423 1: cd 4424 2: gh 4425copy substring three failed -7 4426 4427/(?P<Tes>)(?P<Test>)/DZ 4428------------------------------------------------------------------ 4429 Bra 4430 CBra 1 4431 Ket 4432 CBra 2 4433 Ket 4434 Ket 4435 End 4436------------------------------------------------------------------ 4437Capturing subpattern count = 2 4438Named capturing subpatterns: 4439 Tes 1 4440 Test 2 4441No options 4442No first char 4443No need char 4444 4445/(?P<Test>)(?P<Tes>)/DZ 4446------------------------------------------------------------------ 4447 Bra 4448 CBra 1 4449 Ket 4450 CBra 2 4451 Ket 4452 Ket 4453 End 4454------------------------------------------------------------------ 4455Capturing subpattern count = 2 4456Named capturing subpatterns: 4457 Tes 2 4458 Test 1 4459No options 4460No first char 4461No need char 4462 4463/(?P<Z>zz)(?P<A>aa)/I 4464Capturing subpattern count = 2 4465Named capturing subpatterns: 4466 A 2 4467 Z 1 4468No options 4469First char = 'z' 4470Need char = 'a' 4471 zzaa\CZ 4472 0: zzaa 4473 1: zz 4474 2: aa 4475 C zz (2) Z 4476 zzaa\CA 4477 0: zzaa 4478 1: zz 4479 2: aa 4480 C aa (2) A 4481 4482/(?P<x>eks)(?P<x>eccs)/I 4483Failed: two named subpatterns have the same name at offset 15 4484 4485/(?P<abc>abc(?P<def>def)(?P<abc>xyz))/I 4486Failed: two named subpatterns have the same name at offset 30 4487 4488"\[((?P<elem>\d+)(,(?P>elem))*)\]"I 4489Capturing subpattern count = 3 4490Named capturing subpatterns: 4491 elem 2 4492No options 4493First char = '[' 4494Need char = ']' 4495 [10,20,30,5,5,4,4,2,43,23,4234] 4496 0: [10,20,30,5,5,4,4,2,43,23,4234] 4497 1: 10,20,30,5,5,4,4,2,43,23,4234 4498 2: 10 4499 3: ,4234 4500 *** Failers 4501No match 4502 [] 4503No match 4504 4505"\[((?P<elem>\d+)(,(?P>elem))*)?\]"I 4506Capturing subpattern count = 3 4507Named capturing subpatterns: 4508 elem 2 4509No options 4510First char = '[' 4511Need char = ']' 4512 [10,20,30,5,5,4,4,2,43,23,4234] 4513 0: [10,20,30,5,5,4,4,2,43,23,4234] 4514 1: 10,20,30,5,5,4,4,2,43,23,4234 4515 2: 10 4516 3: ,4234 4517 [] 4518 0: [] 4519 4520/(a(b(?2)c))?/DZ 4521------------------------------------------------------------------ 4522 Bra 4523 Brazero 4524 CBra 1 4525 a 4526 CBra 2 4527 b 4528 Recurse 4529 c 4530 Ket 4531 Ket 4532 Ket 4533 End 4534------------------------------------------------------------------ 4535Capturing subpattern count = 2 4536No options 4537No first char 4538No need char 4539 4540/(a(b(?2)c))*/DZ 4541------------------------------------------------------------------ 4542 Bra 4543 Brazero 4544 CBra 1 4545 a 4546 CBra 2 4547 b 4548 Recurse 4549 c 4550 Ket 4551 KetRmax 4552 Ket 4553 End 4554------------------------------------------------------------------ 4555Capturing subpattern count = 2 4556No options 4557No first char 4558No need char 4559 4560/(a(b(?2)c)){0,2}/DZ 4561------------------------------------------------------------------ 4562 Bra 4563 Brazero 4564 Bra 4565 CBra 1 4566 a 4567 CBra 2 4568 b 4569 Recurse 4570 c 4571 Ket 4572 Ket 4573 Brazero 4574 CBra 1 4575 a 4576 CBra 2 4577 b 4578 Recurse 4579 c 4580 Ket 4581 Ket 4582 Ket 4583 Ket 4584 End 4585------------------------------------------------------------------ 4586Capturing subpattern count = 2 4587No options 4588No first char 4589No need char 4590 4591/[ab]{1}+/DZ 4592------------------------------------------------------------------ 4593 Bra 4594 Once 4595 [ab]{1,1} 4596 Ket 4597 Ket 4598 End 4599------------------------------------------------------------------ 4600Capturing subpattern count = 0 4601No options 4602No first char 4603No need char 4604 4605/((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/Ii 4606Capturing subpattern count = 3 4607Options: caseless 4608No first char 4609Need char = 'g' (caseless) 4610 Baby Bjorn Active Carrier - With free SHIPPING!! 4611 0: Baby Bjorn Active Carrier - With free SHIPPING!! 4612 1: Baby Bjorn Active Carrier - With free SHIPPING!! 4613 4614/((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/IiS 4615Capturing subpattern count = 3 4616Options: caseless 4617No first char 4618Need char = 'g' (caseless) 4619Subject length lower bound = 8 4620No set of starting bytes 4621 Baby Bjorn Active Carrier - With free SHIPPING!! 4622 0: Baby Bjorn Active Carrier - With free SHIPPING!! 4623 1: Baby Bjorn Active Carrier - With free SHIPPING!! 4624 4625/a*.*b/ISDZ 4626------------------------------------------------------------------ 4627 Bra 4628 a* 4629 Any* 4630 b 4631 Ket 4632 End 4633------------------------------------------------------------------ 4634Capturing subpattern count = 0 4635No options 4636No first char 4637Need char = 'b' 4638Subject length lower bound = 1 4639No set of starting bytes 4640 4641/(a|b)*.?c/ISDZ 4642------------------------------------------------------------------ 4643 Bra 4644 Brazero 4645 CBra 1 4646 a 4647 Alt 4648 b 4649 KetRmax 4650 Any? 4651 c 4652 Ket 4653 End 4654------------------------------------------------------------------ 4655Capturing subpattern count = 1 4656No options 4657No first char 4658Need char = 'c' 4659Subject length lower bound = 1 4660No set of starting bytes 4661 4662/abc(?C255)de(?C)f/DZ 4663------------------------------------------------------------------ 4664 Bra 4665 abc 4666 Callout 255 10 1 4667 de 4668 Callout 0 16 1 4669 f 4670 Ket 4671 End 4672------------------------------------------------------------------ 4673Capturing subpattern count = 0 4674No options 4675First char = 'a' 4676Need char = 'f' 4677 4678/abcde/ICDZ 4679------------------------------------------------------------------ 4680 Bra 4681 Callout 255 0 1 4682 a 4683 Callout 255 1 1 4684 b 4685 Callout 255 2 1 4686 c 4687 Callout 255 3 1 4688 d 4689 Callout 255 4 1 4690 e 4691 Callout 255 5 0 4692 Ket 4693 End 4694------------------------------------------------------------------ 4695Capturing subpattern count = 0 4696Options: 4697First char = 'a' 4698Need char = 'e' 4699 abcde 4700--->abcde 4701 +0 ^ a 4702 +1 ^^ b 4703 +2 ^ ^ c 4704 +3 ^ ^ d 4705 +4 ^ ^ e 4706 +5 ^ ^ 4707 0: abcde 4708 abcdfe 4709--->abcdfe 4710 +0 ^ a 4711 +1 ^^ b 4712 +2 ^ ^ c 4713 +3 ^ ^ d 4714 +4 ^ ^ e 4715No match 4716 4717/a*b/ICDZS 4718------------------------------------------------------------------ 4719 Bra 4720 Callout 255 0 2 4721 a*+ 4722 Callout 255 2 1 4723 b 4724 Callout 255 3 0 4725 Ket 4726 End 4727------------------------------------------------------------------ 4728Capturing subpattern count = 0 4729Options: 4730No first char 4731Need char = 'b' 4732Subject length lower bound = 1 4733Starting byte set: a b 4734 ab 4735--->ab 4736 +0 ^ a* 4737 +2 ^^ b 4738 +3 ^ ^ 4739 0: ab 4740 aaaab 4741--->aaaab 4742 +0 ^ a* 4743 +2 ^ ^ b 4744 +3 ^ ^ 4745 0: aaaab 4746 aaaacb 4747--->aaaacb 4748 +0 ^ a* 4749 +2 ^ ^ b 4750 +0 ^ a* 4751 +2 ^ ^ b 4752 +0 ^ a* 4753 +2 ^ ^ b 4754 +0 ^ a* 4755 +2 ^^ b 4756 +0 ^ a* 4757 +2 ^ b 4758 +3 ^^ 4759 0: b 4760 4761/a*b/ICDZSS 4762------------------------------------------------------------------ 4763 Bra 4764 Callout 255 0 2 4765 a*+ 4766 Callout 255 2 1 4767 b 4768 Callout 255 3 0 4769 Ket 4770 End 4771------------------------------------------------------------------ 4772Capturing subpattern count = 0 4773Options: 4774No first char 4775Need char = 'b' 4776 ab 4777--->ab 4778 +0 ^ a* 4779 +2 ^^ b 4780 +3 ^ ^ 4781 0: ab 4782 aaaab 4783--->aaaab 4784 +0 ^ a* 4785 +2 ^ ^ b 4786 +3 ^ ^ 4787 0: aaaab 4788 aaaacb 4789--->aaaacb 4790 +0 ^ a* 4791 +2 ^ ^ b 4792 +0 ^ a* 4793 +2 ^ ^ b 4794 +0 ^ a* 4795 +2 ^ ^ b 4796 +0 ^ a* 4797 +2 ^^ b 4798 +0 ^ a* 4799 +2 ^ b 4800 +0 ^ a* 4801 +2 ^ b 4802 +3 ^^ 4803 0: b 4804 4805/a+b/ICDZ 4806------------------------------------------------------------------ 4807 Bra 4808 Callout 255 0 2 4809 a++ 4810 Callout 255 2 1 4811 b 4812 Callout 255 3 0 4813 Ket 4814 End 4815------------------------------------------------------------------ 4816Capturing subpattern count = 0 4817Options: 4818First char = 'a' 4819Need char = 'b' 4820 ab 4821--->ab 4822 +0 ^ a+ 4823 +2 ^^ b 4824 +3 ^ ^ 4825 0: ab 4826 aaaab 4827--->aaaab 4828 +0 ^ a+ 4829 +2 ^ ^ b 4830 +3 ^ ^ 4831 0: aaaab 4832 aaaacb 4833--->aaaacb 4834 +0 ^ a+ 4835 +2 ^ ^ b 4836 +0 ^ a+ 4837 +2 ^ ^ b 4838 +0 ^ a+ 4839 +2 ^ ^ b 4840 +0 ^ a+ 4841 +2 ^^ b 4842No match 4843 4844/(abc|def)x/ICDZS 4845------------------------------------------------------------------ 4846 Bra 4847 Callout 255 0 9 4848 CBra 1 4849 Callout 255 1 1 4850 a 4851 Callout 255 2 1 4852 b 4853 Callout 255 3 1 4854 c 4855 Callout 255 4 0 4856 Alt 4857 Callout 255 5 1 4858 d 4859 Callout 255 6 1 4860 e 4861 Callout 255 7 1 4862 f 4863 Callout 255 8 0 4864 Ket 4865 Callout 255 9 1 4866 x 4867 Callout 255 10 0 4868 Ket 4869 End 4870------------------------------------------------------------------ 4871Capturing subpattern count = 1 4872Options: 4873No first char 4874Need char = 'x' 4875Subject length lower bound = 4 4876Starting byte set: a d 4877 abcx 4878--->abcx 4879 +0 ^ (abc|def) 4880 +1 ^ a 4881 +2 ^^ b 4882 +3 ^ ^ c 4883 +4 ^ ^ | 4884 +9 ^ ^ x 4885+10 ^ ^ 4886 0: abcx 4887 1: abc 4888 defx 4889--->defx 4890 +0 ^ (abc|def) 4891 +1 ^ a 4892 +5 ^ d 4893 +6 ^^ e 4894 +7 ^ ^ f 4895 +8 ^ ^ ) 4896 +9 ^ ^ x 4897+10 ^ ^ 4898 0: defx 4899 1: def 4900 ** Failers 4901No match 4902 abcdefzx 4903--->abcdefzx 4904 +0 ^ (abc|def) 4905 +1 ^ a 4906 +2 ^^ b 4907 +3 ^ ^ c 4908 +4 ^ ^ | 4909 +9 ^ ^ x 4910 +5 ^ d 4911 +0 ^ (abc|def) 4912 +1 ^ a 4913 +5 ^ d 4914 +6 ^^ e 4915 +7 ^ ^ f 4916 +8 ^ ^ ) 4917 +9 ^ ^ x 4918No match 4919 4920/(abc|def)x/ICDZSS 4921------------------------------------------------------------------ 4922 Bra 4923 Callout 255 0 9 4924 CBra 1 4925 Callout 255 1 1 4926 a 4927 Callout 255 2 1 4928 b 4929 Callout 255 3 1 4930 c 4931 Callout 255 4 0 4932 Alt 4933 Callout 255 5 1 4934 d 4935 Callout 255 6 1 4936 e 4937 Callout 255 7 1 4938 f 4939 Callout 255 8 0 4940 Ket 4941 Callout 255 9 1 4942 x 4943 Callout 255 10 0 4944 Ket 4945 End 4946------------------------------------------------------------------ 4947Capturing subpattern count = 1 4948Options: 4949No first char 4950Need char = 'x' 4951 abcx 4952--->abcx 4953 +0 ^ (abc|def) 4954 +1 ^ a 4955 +2 ^^ b 4956 +3 ^ ^ c 4957 +4 ^ ^ | 4958 +9 ^ ^ x 4959+10 ^ ^ 4960 0: abcx 4961 1: abc 4962 defx 4963--->defx 4964 +0 ^ (abc|def) 4965 +1 ^ a 4966 +5 ^ d 4967 +6 ^^ e 4968 +7 ^ ^ f 4969 +8 ^ ^ ) 4970 +9 ^ ^ x 4971+10 ^ ^ 4972 0: defx 4973 1: def 4974 ** Failers 4975No match 4976 abcdefzx 4977--->abcdefzx 4978 +0 ^ (abc|def) 4979 +1 ^ a 4980 +2 ^^ b 4981 +3 ^ ^ c 4982 +4 ^ ^ | 4983 +9 ^ ^ x 4984 +5 ^ d 4985 +0 ^ (abc|def) 4986 +1 ^ a 4987 +5 ^ d 4988 +0 ^ (abc|def) 4989 +1 ^ a 4990 +5 ^ d 4991 +0 ^ (abc|def) 4992 +1 ^ a 4993 +5 ^ d 4994 +6 ^^ e 4995 +7 ^ ^ f 4996 +8 ^ ^ ) 4997 +9 ^ ^ x 4998 +0 ^ (abc|def) 4999 +1 ^ a 5000 +5 ^ d 5001 +0 ^ (abc|def) 5002 +1 ^ a 5003 +5 ^ d 5004 +0 ^ (abc|def) 5005 +1 ^ a 5006 +5 ^ d 5007 +0 ^ (abc|def) 5008 +1 ^ a 5009 +5 ^ d 5010No match 5011 5012/(ab|cd){3,4}/IC 5013Capturing subpattern count = 1 5014Options: 5015No first char 5016No need char 5017 ababab 5018--->ababab 5019 +0 ^ (ab|cd){3,4} 5020 +1 ^ a 5021 +2 ^^ b 5022 +3 ^ ^ | 5023 +1 ^ ^ a 5024 +2 ^ ^ b 5025 +3 ^ ^ | 5026 +1 ^ ^ a 5027 +2 ^ ^ b 5028 +3 ^ ^ | 5029 +1 ^ ^ a 5030 +4 ^ ^ c 5031+12 ^ ^ 5032 0: ababab 5033 1: ab 5034 abcdabcd 5035--->abcdabcd 5036 +0 ^ (ab|cd){3,4} 5037 +1 ^ a 5038 +2 ^^ b 5039 +3 ^ ^ | 5040 +1 ^ ^ a 5041 +4 ^ ^ c 5042 +5 ^ ^ d 5043 +6 ^ ^ ) 5044 +1 ^ ^ a 5045 +2 ^ ^ b 5046 +3 ^ ^ | 5047 +1 ^ ^ a 5048 +4 ^ ^ c 5049 +5 ^ ^ d 5050 +6 ^ ^ ) 5051+12 ^ ^ 5052 0: abcdabcd 5053 1: cd 5054 abcdcdcdcdcd 5055--->abcdcdcdcdcd 5056 +0 ^ (ab|cd){3,4} 5057 +1 ^ a 5058 +2 ^^ b 5059 +3 ^ ^ | 5060 +1 ^ ^ a 5061 +4 ^ ^ c 5062 +5 ^ ^ d 5063 +6 ^ ^ ) 5064 +1 ^ ^ a 5065 +4 ^ ^ c 5066 +5 ^ ^ d 5067 +6 ^ ^ ) 5068 +1 ^ ^ a 5069 +4 ^ ^ c 5070 +5 ^ ^ d 5071 +6 ^ ^ ) 5072+12 ^ ^ 5073 0: abcdcdcd 5074 1: cd 5075 5076/([ab]{,4}c|xy)/ICDZS 5077------------------------------------------------------------------ 5078 Bra 5079 Callout 255 0 14 5080 CBra 1 5081 Callout 255 1 4 5082 [ab] 5083 Callout 255 5 1 5084 { 5085 Callout 255 6 1 5086 , 5087 Callout 255 7 1 5088 4 5089 Callout 255 8 1 5090 } 5091 Callout 255 9 1 5092 c 5093 Callout 255 10 0 5094 Alt 5095 Callout 255 11 1 5096 x 5097 Callout 255 12 1 5098 y 5099 Callout 255 13 0 5100 Ket 5101 Callout 255 14 0 5102 Ket 5103 End 5104------------------------------------------------------------------ 5105Capturing subpattern count = 1 5106Options: 5107No first char 5108No need char 5109Subject length lower bound = 2 5110Starting byte set: a b x 5111 Note: that { does NOT introduce a quantifier 5112--->Note: that { does NOT introduce a quantifier 5113 +0 ^ ([ab]{,4}c|xy) 5114 +1 ^ [ab] 5115 +5 ^^ { 5116+11 ^ x 5117 +0 ^ ([ab]{,4}c|xy) 5118 +1 ^ [ab] 5119 +5 ^^ { 5120+11 ^ x 5121 +0 ^ ([ab]{,4}c|xy) 5122 +1 ^ [ab] 5123 +5 ^^ { 5124+11 ^ x 5125No match 5126 5127/([ab]{,4}c|xy)/ICDZSS 5128------------------------------------------------------------------ 5129 Bra 5130 Callout 255 0 14 5131 CBra 1 5132 Callout 255 1 4 5133 [ab] 5134 Callout 255 5 1 5135 { 5136 Callout 255 6 1 5137 , 5138 Callout 255 7 1 5139 4 5140 Callout 255 8 1 5141 } 5142 Callout 255 9 1 5143 c 5144 Callout 255 10 0 5145 Alt 5146 Callout 255 11 1 5147 x 5148 Callout 255 12 1 5149 y 5150 Callout 255 13 0 5151 Ket 5152 Callout 255 14 0 5153 Ket 5154 End 5155------------------------------------------------------------------ 5156Capturing subpattern count = 1 5157Options: 5158No first char 5159No need char 5160 Note: that { does NOT introduce a quantifier 5161--->Note: that { does NOT introduce a quantifier 5162 +0 ^ ([ab]{,4}c|xy) 5163 +1 ^ [ab] 5164+11 ^ x 5165 +0 ^ ([ab]{,4}c|xy) 5166 +1 ^ [ab] 5167+11 ^ x 5168 +0 ^ ([ab]{,4}c|xy) 5169 +1 ^ [ab] 5170+11 ^ x 5171 +0 ^ ([ab]{,4}c|xy) 5172 +1 ^ [ab] 5173+11 ^ x 5174 +0 ^ ([ab]{,4}c|xy) 5175 +1 ^ [ab] 5176+11 ^ x 5177 +0 ^ ([ab]{,4}c|xy) 5178 +1 ^ [ab] 5179+11 ^ x 5180 +0 ^ ([ab]{,4}c|xy) 5181 +1 ^ [ab] 5182+11 ^ x 5183 +0 ^ ([ab]{,4}c|xy) 5184 +1 ^ [ab] 5185+11 ^ x 5186 +0 ^ ([ab]{,4}c|xy) 5187 +1 ^ [ab] 5188 +5 ^^ { 5189+11 ^ x 5190 +0 ^ ([ab]{,4}c|xy) 5191 +1 ^ [ab] 5192+11 ^ x 5193 +0 ^ ([ab]{,4}c|xy) 5194 +1 ^ [ab] 5195+11 ^ x 5196 +0 ^ ([ab]{,4}c|xy) 5197 +1 ^ [ab] 5198+11 ^ x 5199 +0 ^ ([ab]{,4}c|xy) 5200 +1 ^ [ab] 5201+11 ^ x 5202 +0 ^ ([ab]{,4}c|xy) 5203 +1 ^ [ab] 5204+11 ^ x 5205 +0 ^ ([ab]{,4}c|xy) 5206 +1 ^ [ab] 5207+11 ^ x 5208 +0 ^ ([ab]{,4}c|xy) 5209 +1 ^ [ab] 5210+11 ^ x 5211 +0 ^ ([ab]{,4}c|xy) 5212 +1 ^ [ab] 5213+11 ^ x 5214 +0 ^ ([ab]{,4}c|xy) 5215 +1 ^ [ab] 5216+11 ^ x 5217 +0 ^ ([ab]{,4}c|xy) 5218 +1 ^ [ab] 5219+11 ^ x 5220 +0 ^ ([ab]{,4}c|xy) 5221 +1 ^ [ab] 5222+11 ^ x 5223 +0 ^ ([ab]{,4}c|xy) 5224 +1 ^ [ab] 5225+11 ^ x 5226 +0 ^ ([ab]{,4}c|xy) 5227 +1 ^ [ab] 5228+11 ^ x 5229 +0 ^ ([ab]{,4}c|xy) 5230 +1 ^ [ab] 5231+11 ^ x 5232 +0 ^ ([ab]{,4}c|xy) 5233 +1 ^ [ab] 5234+11 ^ x 5235 +0 ^ ([ab]{,4}c|xy) 5236 +1 ^ [ab] 5237+11 ^ x 5238 +0 ^ ([ab]{,4}c|xy) 5239 +1 ^ [ab] 5240+11 ^ x 5241 +0 ^ ([ab]{,4}c|xy) 5242 +1 ^ [ab] 5243+11 ^ x 5244 +0 ^ ([ab]{,4}c|xy) 5245 +1 ^ [ab] 5246+11 ^ x 5247 +0 ^ ([ab]{,4}c|xy) 5248 +1 ^ [ab] 5249+11 ^ x 5250 +0 ^ ([ab]{,4}c|xy) 5251 +1 ^ [ab] 5252+11 ^ x 5253 +0 ^ ([ab]{,4}c|xy) 5254 +1 ^ [ab] 5255+11 ^ x 5256 +0 ^ ([ab]{,4}c|xy) 5257 +1 ^ [ab] 5258+11 ^ x 5259 +0 ^ ([ab]{,4}c|xy) 5260 +1 ^ [ab] 5261 +5 ^^ { 5262+11 ^ x 5263 +0 ^ ([ab]{,4}c|xy) 5264 +1 ^ [ab] 5265+11 ^ x 5266 +0 ^ ([ab]{,4}c|xy) 5267 +1 ^ [ab] 5268+11 ^ x 5269 +0 ^ ([ab]{,4}c|xy) 5270 +1 ^ [ab] 5271+11 ^ x 5272 +0 ^ ([ab]{,4}c|xy) 5273 +1 ^ [ab] 5274 +5 ^^ { 5275+11 ^ x 5276 +0 ^ ([ab]{,4}c|xy) 5277 +1 ^ [ab] 5278+11 ^ x 5279 +0 ^ ([ab]{,4}c|xy) 5280 +1 ^ [ab] 5281+11 ^ x 5282 +0 ^ ([ab]{,4}c|xy) 5283 +1 ^ [ab] 5284+11 ^ x 5285 +0 ^ ([ab]{,4}c|xy) 5286 +1 ^ [ab] 5287+11 ^ x 5288 +0 ^ ([ab]{,4}c|xy) 5289 +1 ^ [ab] 5290+11 ^ x 5291 +0 ^ ([ab]{,4}c|xy) 5292 +1 ^ [ab] 5293+11 ^ x 5294 +0 ^ ([ab]{,4}c|xy) 5295 +1 ^ [ab] 5296+11 ^ x 5297 +0 ^ ([ab]{,4}c|xy) 5298 +1 ^ [ab] 5299+11 ^ x 5300No match 5301 5302/([ab]{1,4}c|xy){4,5}?123/ICDZ 5303------------------------------------------------------------------ 5304 Bra 5305 Callout 255 0 21 5306 CBra 1 5307 Callout 255 1 9 5308 [ab]{1,4} 5309 Callout 255 10 1 5310 c 5311 Callout 255 11 0 5312 Alt 5313 Callout 255 12 1 5314 x 5315 Callout 255 13 1 5316 y 5317 Callout 255 14 0 5318 Ket 5319 CBra 1 5320 Callout 255 1 9 5321 [ab]{1,4} 5322 Callout 255 10 1 5323 c 5324 Callout 255 11 0 5325 Alt 5326 Callout 255 12 1 5327 x 5328 Callout 255 13 1 5329 y 5330 Callout 255 14 0 5331 Ket 5332 CBra 1 5333 Callout 255 1 9 5334 [ab]{1,4} 5335 Callout 255 10 1 5336 c 5337 Callout 255 11 0 5338 Alt 5339 Callout 255 12 1 5340 x 5341 Callout 255 13 1 5342 y 5343 Callout 255 14 0 5344 Ket 5345 CBra 1 5346 Callout 255 1 9 5347 [ab]{1,4} 5348 Callout 255 10 1 5349 c 5350 Callout 255 11 0 5351 Alt 5352 Callout 255 12 1 5353 x 5354 Callout 255 13 1 5355 y 5356 Callout 255 14 0 5357 Ket 5358 Braminzero 5359 CBra 1 5360 Callout 255 1 9 5361 [ab]{1,4} 5362 Callout 255 10 1 5363 c 5364 Callout 255 11 0 5365 Alt 5366 Callout 255 12 1 5367 x 5368 Callout 255 13 1 5369 y 5370 Callout 255 14 0 5371 Ket 5372 Callout 255 21 1 5373 1 5374 Callout 255 22 1 5375 2 5376 Callout 255 23 1 5377 3 5378 Callout 255 24 0 5379 Ket 5380 End 5381------------------------------------------------------------------ 5382Capturing subpattern count = 1 5383Options: 5384No first char 5385Need char = '3' 5386 aacaacaacaacaac123 5387--->aacaacaacaacaac123 5388 +0 ^ ([ab]{1,4}c|xy){4,5}? 5389 +1 ^ [ab]{1,4} 5390+10 ^ ^ c 5391+11 ^ ^ | 5392 +1 ^ ^ [ab]{1,4} 5393+10 ^ ^ c 5394+11 ^ ^ | 5395 +1 ^ ^ [ab]{1,4} 5396+10 ^ ^ c 5397+11 ^ ^ | 5398 +1 ^ ^ [ab]{1,4} 5399+10 ^ ^ c 5400+11 ^ ^ | 5401+21 ^ ^ 1 5402 +1 ^ ^ [ab]{1,4} 5403+10 ^ ^ c 5404+11 ^ ^ | 5405+21 ^ ^ 1 5406+22 ^ ^ 2 5407+23 ^ ^ 3 5408+24 ^ ^ 5409 0: aacaacaacaacaac123 5410 1: aac 5411 5412/\b.*/I 5413Capturing subpattern count = 0 5414No options 5415No first char 5416No need char 5417Max lookbehind = 1 5418 ab cd\>1 5419 0: cd 5420 5421/\b.*/Is 5422Capturing subpattern count = 0 5423Options: dotall 5424No first char 5425No need char 5426Max lookbehind = 1 5427 ab cd\>1 5428 0: cd 5429 5430/(?!.bcd).*/I 5431Capturing subpattern count = 0 5432No options 5433No first char 5434No need char 5435 Xbcd12345 5436 0: bcd12345 5437 5438/abcde/I 5439Capturing subpattern count = 0 5440No options 5441First char = 'a' 5442Need char = 'e' 5443 ab\P 5444Partial match: ab 5445 abc\P 5446Partial match: abc 5447 abcd\P 5448Partial match: abcd 5449 abcde\P 5450 0: abcde 5451 the quick brown abc\P 5452Partial match: abc 5453 ** Failers\P 5454No match 5455 the quick brown abxyz fox\P 5456No match 5457 5458"^(0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[012])/(20)?\d\d$"I 5459Capturing subpattern count = 3 5460Options: anchored 5461No first char 5462Need char = '/' 5463 13/05/04\P 5464 0: 13/05/04 5465 1: 13 5466 2: 05 5467 13/5/2004\P 5468 0: 13/5/2004 5469 1: 13 5470 2: 5 5471 3: 20 5472 02/05/09\P 5473 0: 02/05/09 5474 1: 02 5475 2: 05 5476 1\P 5477Partial match: 1 5478 1/2\P 5479Partial match: 1/2 5480 1/2/0\P 5481Partial match: 1/2/0 5482 1/2/04\P 5483 0: 1/2/04 5484 1: 1 5485 2: 2 5486 0\P 5487Partial match: 0 5488 02/\P 5489Partial match: 02/ 5490 02/0\P 5491Partial match: 02/0 5492 02/1\P 5493Partial match: 02/1 5494 ** Failers\P 5495No match 5496 \P 5497No match 5498 123\P 5499No match 5500 33/4/04\P 5501No match 5502 3/13/04\P 5503No match 5504 0/1/2003\P 5505No match 5506 0/\P 5507No match 5508 02/0/\P 5509No match 5510 02/13\P 5511No match 5512 5513/0{0,2}ABC/I 5514Capturing subpattern count = 0 5515No options 5516No first char 5517Need char = 'C' 5518 5519/\d{3,}ABC/I 5520Capturing subpattern count = 0 5521No options 5522No first char 5523Need char = 'C' 5524 5525/\d*ABC/I 5526Capturing subpattern count = 0 5527No options 5528No first char 5529Need char = 'C' 5530 5531/[abc]+DE/I 5532Capturing subpattern count = 0 5533No options 5534No first char 5535Need char = 'E' 5536 5537/[abc]?123/I 5538Capturing subpattern count = 0 5539No options 5540No first char 5541Need char = '3' 5542 123\P 5543 0: 123 5544 a\P 5545Partial match: a 5546 b\P 5547Partial match: b 5548 c\P 5549Partial match: c 5550 c12\P 5551Partial match: c12 5552 c123\P 5553 0: c123 5554 5555/^(?:\d){3,5}X/I 5556Capturing subpattern count = 0 5557Options: anchored 5558No first char 5559Need char = 'X' 5560 1\P 5561Partial match: 1 5562 123\P 5563Partial match: 123 5564 123X 5565 0: 123X 5566 1234\P 5567Partial match: 1234 5568 1234X 5569 0: 1234X 5570 12345\P 5571Partial match: 12345 5572 12345X 5573 0: 12345X 5574 *** Failers 5575No match 5576 1X 5577No match 5578 123456\P 5579No match 5580 5581/abc/IS>testsavedregex 5582Capturing subpattern count = 0 5583No options 5584First char = 'a' 5585Need char = 'c' 5586Subject length lower bound = 3 5587No set of starting bytes 5588Compiled pattern written to testsavedregex 5589Study data written to testsavedregex 5590<testsavedregex 5591Compiled pattern loaded from testsavedregex 5592Study data loaded from testsavedregex 5593 abc 5594 0: abc 5595 ** Failers 5596No match 5597 bca 5598No match 5599 5600/abc/ISS>testsavedregex 5601Capturing subpattern count = 0 5602No options 5603First char = 'a' 5604Need char = 'c' 5605Compiled pattern written to testsavedregex 5606<testsavedregex 5607Compiled pattern loaded from testsavedregex 5608No study data 5609 abc 5610 0: abc 5611 ** Failers 5612No match 5613 bca 5614No match 5615 5616/abc/IFS>testsavedregex 5617Capturing subpattern count = 0 5618No options 5619First char = 'a' 5620Need char = 'c' 5621Subject length lower bound = 3 5622No set of starting bytes 5623Compiled pattern written to testsavedregex 5624Study data written to testsavedregex 5625<testsavedregex 5626Compiled pattern (byte-inverted) loaded from testsavedregex 5627Study data loaded from testsavedregex 5628 abc 5629 0: abc 5630 ** Failers 5631No match 5632 bca 5633No match 5634 5635/abc/IFSS>testsavedregex 5636Capturing subpattern count = 0 5637No options 5638First char = 'a' 5639Need char = 'c' 5640Compiled pattern written to testsavedregex 5641<testsavedregex 5642Compiled pattern (byte-inverted) loaded from testsavedregex 5643No study data 5644 abc 5645 0: abc 5646 ** Failers 5647No match 5648 bca 5649No match 5650 5651/(a|b)/IS>testsavedregex 5652Capturing subpattern count = 1 5653No options 5654No first char 5655No need char 5656Subject length lower bound = 1 5657Starting byte set: a b 5658Compiled pattern written to testsavedregex 5659Study data written to testsavedregex 5660<testsavedregex 5661Compiled pattern loaded from testsavedregex 5662Study data loaded from testsavedregex 5663 abc 5664 0: a 5665 1: a 5666 ** Failers 5667 0: a 5668 1: a 5669 def 5670No match 5671 5672/(a|b)/ISS>testsavedregex 5673Capturing subpattern count = 1 5674No options 5675No first char 5676No need char 5677Compiled pattern written to testsavedregex 5678<testsavedregex 5679Compiled pattern loaded from testsavedregex 5680No study data 5681 abc 5682 0: a 5683 1: a 5684 ** Failers 5685 0: a 5686 1: a 5687 def 5688No match 5689 5690/(a|b)/ISF>testsavedregex 5691Capturing subpattern count = 1 5692No options 5693No first char 5694No need char 5695Subject length lower bound = 1 5696Starting byte set: a b 5697Compiled pattern written to testsavedregex 5698Study data written to testsavedregex 5699<testsavedregex 5700Compiled pattern (byte-inverted) loaded from testsavedregex 5701Study data loaded from testsavedregex 5702 abc 5703 0: a 5704 1: a 5705 ** Failers 5706 0: a 5707 1: a 5708 def 5709No match 5710 5711/(a|b)/ISSF>testsavedregex 5712Capturing subpattern count = 1 5713No options 5714No first char 5715No need char 5716Compiled pattern written to testsavedregex 5717<testsavedregex 5718Compiled pattern (byte-inverted) loaded from testsavedregex 5719No study data 5720 abc 5721 0: a 5722 1: a 5723 ** Failers 5724 0: a 5725 1: a 5726 def 5727No match 5728 5729~<(\w+)/?>(.)*</(\1)>~smgI 5730Capturing subpattern count = 3 5731Max back reference = 1 5732Options: multiline dotall 5733First char = '<' 5734Need char = '>' 5735 \J1024<!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> 5736 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> 5737 1: seite 5738 2: \x0a 5739 3: seite 5740 5741/^a/IF 5742Capturing subpattern count = 0 5743Options: anchored 5744No first char 5745No need char 5746 5747/line\nbreak/I 5748Capturing subpattern count = 0 5749Contains explicit CR or LF match 5750No options 5751First char = 'l' 5752Need char = 'k' 5753 this is a line\nbreak 5754 0: line\x0abreak 5755 line one\nthis is a line\nbreak in the second line 5756 0: line\x0abreak 5757 5758/line\nbreak/If 5759Capturing subpattern count = 0 5760Contains explicit CR or LF match 5761Options: firstline 5762First char = 'l' 5763Need char = 'k' 5764 this is a line\nbreak 5765 0: line\x0abreak 5766 ** Failers 5767No match 5768 line one\nthis is a line\nbreak in the second line 5769No match 5770 5771/line\nbreak/Imf 5772Capturing subpattern count = 0 5773Contains explicit CR or LF match 5774Options: multiline firstline 5775First char = 'l' 5776Need char = 'k' 5777 this is a line\nbreak 5778 0: line\x0abreak 5779 ** Failers 5780No match 5781 line one\nthis is a line\nbreak in the second line 5782No match 5783 5784/(?i)(?-i)AbCd/I 5785Capturing subpattern count = 0 5786No options 5787First char = 'A' 5788Need char = 'd' 5789 AbCd 5790 0: AbCd 5791 ** Failers 5792No match 5793 abcd 5794No match 5795 5796/a{11111111111111111111}/I 5797Failed: number too big in {} quantifier at offset 22 5798 5799/(){64294967295}/I 5800Failed: number too big in {} quantifier at offset 14 5801 5802/(){2,4294967295}/I 5803Failed: number too big in {} quantifier at offset 15 5804 5805"(?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 5806Capturing subpattern count = 1 5807Max back reference = 1 5808No options 5809First char = 'a' (caseless) 5810Need char = 'B' 5811 abcdefghijklAkB 5812 0: abcdefghijklAkB 5813 1: k 5814 5815"(?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 5816Capturing subpattern count = 12 5817Max back reference = 11 5818Named capturing subpatterns: 5819 n0 1 5820 n1 2 5821 n10 11 5822 n11 12 5823 n2 3 5824 n3 4 5825 n4 5 5826 n5 6 5827 n6 7 5828 n7 8 5829 n8 9 5830 n9 10 5831No options 5832First char = 'a' 5833Need char = 'B' 5834 abcdefghijklAkB 5835 0: abcdefghijklAkB 5836 1: a 5837 2: b 5838 3: c 5839 4: d 5840 5: e 5841 6: f 5842 7: g 5843 8: h 5844 9: i 584510: j 584611: k 584712: l 5848 5849"(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)A\11B"I 5850Capturing subpattern count = 12 5851Max back reference = 11 5852No options 5853First char = 'a' 5854Need char = 'B' 5855 abcdefghijklAkB 5856 0: abcdefghijklAkB 5857 1: a 5858 2: b 5859 3: c 5860 4: d 5861 5: e 5862 6: f 5863 7: g 5864 8: h 5865 9: i 586610: j 586711: k 586812: l 5869 5870"(?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 5871Capturing subpattern count = 101 5872Named capturing subpatterns: 5873 name0 1 5874 name1 2 5875 name10 11 5876 name100 101 5877 name11 12 5878 name12 13 5879 name13 14 5880 name14 15 5881 name15 16 5882 name16 17 5883 name17 18 5884 name18 19 5885 name19 20 5886 name2 3 5887 name20 21 5888 name21 22 5889 name22 23 5890 name23 24 5891 name24 25 5892 name25 26 5893 name26 27 5894 name27 28 5895 name28 29 5896 name29 30 5897 name3 4 5898 name30 31 5899 name31 32 5900 name32 33 5901 name33 34 5902 name34 35 5903 name35 36 5904 name36 37 5905 name37 38 5906 name38 39 5907 name39 40 5908 name4 5 5909 name40 41 5910 name41 42 5911 name42 43 5912 name43 44 5913 name44 45 5914 name45 46 5915 name46 47 5916 name47 48 5917 name48 49 5918 name49 50 5919 name5 6 5920 name50 51 5921 name51 52 5922 name52 53 5923 name53 54 5924 name54 55 5925 name55 56 5926 name56 57 5927 name57 58 5928 name58 59 5929 name59 60 5930 name6 7 5931 name60 61 5932 name61 62 5933 name62 63 5934 name63 64 5935 name64 65 5936 name65 66 5937 name66 67 5938 name67 68 5939 name68 69 5940 name69 70 5941 name7 8 5942 name70 71 5943 name71 72 5944 name72 73 5945 name73 74 5946 name74 75 5947 name75 76 5948 name76 77 5949 name77 78 5950 name78 79 5951 name79 80 5952 name8 9 5953 name80 81 5954 name81 82 5955 name82 83 5956 name83 84 5957 name84 85 5958 name85 86 5959 name86 87 5960 name87 88 5961 name88 89 5962 name89 90 5963 name9 10 5964 name90 91 5965 name91 92 5966 name92 93 5967 name93 94 5968 name94 95 5969 name95 96 5970 name96 97 5971 name97 98 5972 name98 99 5973 name99 100 5974No options 5975First char = 'a' 5976Need char = 'a' 5977 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 5978Matched, but too many substrings 5979 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 5980 1: a 5981 2: a 5982 3: a 5983 4: a 5984 5: a 5985 6: a 5986 7: a 5987 8: a 5988 9: a 598910: a 599011: a 599112: a 599213: a 599314: a 5994 5995"(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 5996Capturing subpattern count = 101 5997No options 5998First char = 'a' 5999Need char = 'a' 6000 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 6001Matched, but too many substrings 6002 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 6003 1: a 6004 2: a 6005 3: a 6006 4: a 6007 5: a 6008 6: a 6009 7: a 6010 8: a 6011 9: a 601210: a 601311: a 601412: a 601513: a 601614: a 6017 6018/[^()]*(?:\((?R)\)[^()]*)*/I 6019Capturing subpattern count = 0 6020No options 6021No first char 6022No need char 6023 (this(and)that 6024 0: 6025 (this(and)that) 6026 0: (this(and)that) 6027 (this(and)that)stuff 6028 0: (this(and)that)stuff 6029 6030/[^()]*(?:\((?>(?R))\)[^()]*)*/I 6031Capturing subpattern count = 0 6032No options 6033No first char 6034No need char 6035 (this(and)that 6036 0: 6037 (this(and)that) 6038 0: (this(and)that) 6039 6040/[^()]*(?:\((?R)\))*[^()]*/I 6041Capturing subpattern count = 0 6042No options 6043No first char 6044No need char 6045 (this(and)that 6046 0: 6047 (this(and)that) 6048 0: (this(and)that) 6049 6050/(?:\((?R)\))*[^()]*/I 6051Capturing subpattern count = 0 6052No options 6053No first char 6054No need char 6055 (this(and)that 6056 0: 6057 (this(and)that) 6058 0: 6059 ((this)) 6060 0: ((this)) 6061 6062/(?:\((?R)\))|[^()]*/I 6063Capturing subpattern count = 0 6064No options 6065No first char 6066No need char 6067 (this(and)that 6068 0: 6069 (this(and)that) 6070 0: 6071 (this) 6072 0: (this) 6073 ((this)) 6074 0: ((this)) 6075 6076/\x{0000ff}/I 6077Capturing subpattern count = 0 6078No options 6079First char = \xff 6080No need char 6081 6082/^((?P<A>a1)|(?P<A>a2)b)/I 6083Failed: two named subpatterns have the same name at offset 17 6084 6085/^((?P<A>a1)|(?P<A>a2)b)/IJ 6086Capturing subpattern count = 3 6087Named capturing subpatterns: 6088 A 2 6089 A 3 6090Options: anchored dupnames 6091No first char 6092No need char 6093 a1b\CA 6094 0: a1 6095 1: a1 6096 2: a1 6097 C a1 (2) A 6098 a2b\CA 6099 0: a2b 6100 1: a2b 6101 2: <unset> 6102 3: a2 6103 C a2 (2) A 6104 ** Failers 6105No match 6106 a1b\CZ\CA 6107no parentheses with name "Z" 6108 0: a1 6109 1: a1 6110 2: a1 6111copy substring Z failed -7 6112 C a1 (2) A 6113 6114/^(?P<A>a)(?P<A>b)/IJ 6115Capturing subpattern count = 2 6116Named capturing subpatterns: 6117 A 1 6118 A 2 6119Options: anchored dupnames 6120No first char 6121No need char 6122 ab\CA 6123 0: ab 6124 1: a 6125 2: b 6126 C a (1) A 6127 6128/^(?P<A>a)(?P<A>b)|cd/IJ 6129Capturing subpattern count = 2 6130Named capturing subpatterns: 6131 A 1 6132 A 2 6133Options: dupnames 6134No first char 6135No need char 6136 ab\CA 6137 0: ab 6138 1: a 6139 2: b 6140 C a (1) A 6141 cd\CA 6142 0: cd 6143copy substring A failed -7 6144 6145/^(?P<A>a)(?P<A>b)|cd(?P<A>ef)(?P<A>gh)/IJ 6146Capturing subpattern count = 4 6147Named capturing subpatterns: 6148 A 1 6149 A 2 6150 A 3 6151 A 4 6152Options: dupnames 6153No first char 6154No need char 6155 cdefgh\CA 6156 0: cdefgh 6157 1: <unset> 6158 2: <unset> 6159 3: ef 6160 4: gh 6161 C ef (2) A 6162 6163/^((?P<A>a1)|(?P<A>a2)b)/IJ 6164Capturing subpattern count = 3 6165Named capturing subpatterns: 6166 A 2 6167 A 3 6168Options: anchored dupnames 6169No first char 6170No need char 6171 a1b\GA 6172 0: a1 6173 1: a1 6174 2: a1 6175 G a1 (2) A 6176 a2b\GA 6177 0: a2b 6178 1: a2b 6179 2: <unset> 6180 3: a2 6181 G a2 (2) A 6182 ** Failers 6183No match 6184 a1b\GZ\GA 6185no parentheses with name "Z" 6186 0: a1 6187 1: a1 6188 2: a1 6189get substring Z failed -7 6190 G a1 (2) A 6191 6192/^(?P<A>a)(?P<A>b)/IJ 6193Capturing subpattern count = 2 6194Named capturing subpatterns: 6195 A 1 6196 A 2 6197Options: anchored dupnames 6198No first char 6199No need char 6200 ab\GA 6201 0: ab 6202 1: a 6203 2: b 6204 G a (1) A 6205 6206/^(?P<A>a)(?P<A>b)|cd/IJ 6207Capturing subpattern count = 2 6208Named capturing subpatterns: 6209 A 1 6210 A 2 6211Options: dupnames 6212No first char 6213No need char 6214 ab\GA 6215 0: ab 6216 1: a 6217 2: b 6218 G a (1) A 6219 cd\GA 6220 0: cd 6221get substring A failed -7 6222 6223/^(?P<A>a)(?P<A>b)|cd(?P<A>ef)(?P<A>gh)/IJ 6224Capturing subpattern count = 4 6225Named capturing subpatterns: 6226 A 1 6227 A 2 6228 A 3 6229 A 4 6230Options: dupnames 6231No first char 6232No need char 6233 cdefgh\GA 6234 0: cdefgh 6235 1: <unset> 6236 2: <unset> 6237 3: ef 6238 4: gh 6239 G ef (2) A 6240 6241/(?J)^((?P<A>a1)|(?P<A>a2)b)/I 6242Capturing subpattern count = 3 6243Named capturing subpatterns: 6244 A 2 6245 A 3 6246Options: anchored dupnames 6247Duplicate name status changes 6248No first char 6249No need char 6250 a1b\CA 6251 0: a1 6252 1: a1 6253 2: a1 6254 C a1 (2) A 6255 a2b\CA 6256 0: a2b 6257 1: a2b 6258 2: <unset> 6259 3: a2 6260 C a2 (2) A 6261 6262/^(?P<A>a) (?J:(?P<B>b)(?P<B>c)) (?P<A>d)/I 6263Failed: two named subpatterns have the same name at offset 37 6264 6265/ In this next test, J is not set at the outer level; consequently it isn't 6266set in the pattern's options; consequently pcre_get_named_substring() produces 6267a random value. /Ix 6268Capturing subpattern count = 1 6269Options: extended 6270First char = 'I' 6271Need char = 'e' 6272 6273/^(?P<A>a) (?J:(?P<B>b)(?P<B>c)) (?P<C>d)/I 6274Capturing subpattern count = 4 6275Named capturing subpatterns: 6276 A 1 6277 B 2 6278 B 3 6279 C 4 6280Options: anchored 6281Duplicate name status changes 6282No first char 6283No need char 6284 a bc d\CA\CB\CC 6285 0: a bc d 6286 1: a 6287 2: b 6288 3: c 6289 4: d 6290 C a (1) A 6291 C b (1) B 6292 C d (1) C 6293 6294/^(?P<A>a)?(?(A)a|b)/I 6295Capturing subpattern count = 1 6296Named capturing subpatterns: 6297 A 1 6298Options: anchored 6299No first char 6300No need char 6301 aabc 6302 0: aa 6303 1: a 6304 bc 6305 0: b 6306 ** Failers 6307No match 6308 abc 6309No match 6310 6311/(?:(?(ZZ)a|b)(?P<ZZ>X))+/I 6312Capturing subpattern count = 1 6313Named capturing subpatterns: 6314 ZZ 1 6315No options 6316No first char 6317Need char = 'X' 6318 bXaX 6319 0: bXaX 6320 1: X 6321 6322/(?:(?(2y)a|b)(X))+/I 6323Failed: reference to non-existent subpattern at offset 9 6324 6325/(?:(?(ZA)a|b)(?P<ZZ>X))+/I 6326Failed: reference to non-existent subpattern at offset 9 6327 6328/(?:(?(ZZ)a|b)(?(ZZ)a|b)(?P<ZZ>X))+/I 6329Capturing subpattern count = 1 6330Named capturing subpatterns: 6331 ZZ 1 6332No options 6333No first char 6334Need char = 'X' 6335 bbXaaX 6336 0: bbXaaX 6337 1: X 6338 6339/(?:(?(ZZ)a|\(b\))\\(?P<ZZ>X))+/I 6340Capturing subpattern count = 1 6341Named capturing subpatterns: 6342 ZZ 1 6343No options 6344No first char 6345Need char = 'X' 6346 (b)\\Xa\\X 6347 0: (b)\Xa\X 6348 1: X 6349 6350/(?P<ABC/I 6351Failed: syntax error in subpattern name (missing terminator) at offset 7 6352 6353/(?:(?(A)(?P=A)a|b)(?P<A>X|Y))+/I 6354Capturing subpattern count = 1 6355Max back reference = 1 6356Named capturing subpatterns: 6357 A 1 6358No options 6359No first char 6360No need char 6361 bXXaYYaY 6362 0: bXXaYYaY 6363 1: Y 6364 bXYaXXaX 6365 0: bX 6366 1: X 6367 6368/()()()()()()()()()(?:(?(A)(?P=A)a|b)(?P<A>X|Y))+/I 6369Capturing subpattern count = 10 6370Max back reference = 10 6371Named capturing subpatterns: 6372 A 10 6373No options 6374No first char 6375No need char 6376 bXXaYYaY 6377 0: bXXaYYaY 6378 1: 6379 2: 6380 3: 6381 4: 6382 5: 6383 6: 6384 7: 6385 8: 6386 9: 638710: Y 6388 6389/\s*,\s*/IS 6390Capturing subpattern count = 0 6391No options 6392No first char 6393Need char = ',' 6394Subject length lower bound = 1 6395Starting byte set: \x09 \x0a \x0c \x0d \x20 , 6396 \x0b,\x0b 6397 0: , 6398 \x0c,\x0d 6399 0: \x0c,\x0d 6400 6401/^abc/Im 6402Capturing subpattern count = 0 6403Options: multiline 6404First char at start or follows newline 6405Need char = 'c' 6406 xyz\nabc 6407 0: abc 6408 xyz\nabc\<lf> 6409 0: abc 6410 xyz\r\nabc\<lf> 6411 0: abc 6412 xyz\rabc\<cr> 6413 0: abc 6414 xyz\r\nabc\<crlf> 6415 0: abc 6416 ** Failers 6417No match 6418 xyz\nabc\<cr> 6419No match 6420 xyz\r\nabc\<cr> 6421No match 6422 xyz\nabc\<crlf> 6423No match 6424 xyz\rabc\<crlf> 6425No match 6426 xyz\rabc\<lf> 6427No match 6428 6429/abc$/Im<lf> 6430Capturing subpattern count = 0 6431Options: multiline 6432Forced newline sequence: LF 6433First char = 'a' 6434Need char = 'c' 6435 xyzabc 6436 0: abc 6437 xyzabc\n 6438 0: abc 6439 xyzabc\npqr 6440 0: abc 6441 xyzabc\r\<cr> 6442 0: abc 6443 xyzabc\rpqr\<cr> 6444 0: abc 6445 xyzabc\r\n\<crlf> 6446 0: abc 6447 xyzabc\r\npqr\<crlf> 6448 0: abc 6449 ** Failers 6450No match 6451 xyzabc\r 6452No match 6453 xyzabc\rpqr 6454No match 6455 xyzabc\r\n 6456No match 6457 xyzabc\r\npqr 6458No match 6459 6460/^abc/Im<cr> 6461Capturing subpattern count = 0 6462Options: multiline 6463Forced newline sequence: CR 6464First char at start or follows newline 6465Need char = 'c' 6466 xyz\rabcdef 6467 0: abc 6468 xyz\nabcdef\<lf> 6469 0: abc 6470 ** Failers 6471No match 6472 xyz\nabcdef 6473No match 6474 6475/^abc/Im<lf> 6476Capturing subpattern count = 0 6477Options: multiline 6478Forced newline sequence: LF 6479First char at start or follows newline 6480Need char = 'c' 6481 xyz\nabcdef 6482 0: abc 6483 xyz\rabcdef\<cr> 6484 0: abc 6485 ** Failers 6486No match 6487 xyz\rabcdef 6488No match 6489 6490/^abc/Im<crlf> 6491Capturing subpattern count = 0 6492Options: multiline 6493Forced newline sequence: CRLF 6494First char at start or follows newline 6495Need char = 'c' 6496 xyz\r\nabcdef 6497 0: abc 6498 xyz\rabcdef\<cr> 6499 0: abc 6500 ** Failers 6501No match 6502 xyz\rabcdef 6503No match 6504 6505/^abc/Im<bad> 6506Unknown newline type at: <bad> 6507 6508 6509/abc/I 6510Capturing subpattern count = 0 6511No options 6512First char = 'a' 6513Need char = 'c' 6514 xyz\rabc\<bad> 6515Unknown newline type at: <bad> 6516 abc 6517 0: abc 6518 6519/.*/I<lf> 6520Capturing subpattern count = 0 6521Options: 6522Forced newline sequence: LF 6523First char at start or follows newline 6524No need char 6525 abc\ndef 6526 0: abc 6527 abc\rdef 6528 0: abc\x0ddef 6529 abc\r\ndef 6530 0: abc\x0d 6531 \<cr>abc\ndef 6532 0: abc\x0adef 6533 \<cr>abc\rdef 6534 0: abc 6535 \<cr>abc\r\ndef 6536 0: abc 6537 \<crlf>abc\ndef 6538 0: abc\x0adef 6539 \<crlf>abc\rdef 6540 0: abc\x0ddef 6541 \<crlf>abc\r\ndef 6542 0: abc 6543 6544/\w+(.)(.)?def/Is 6545Capturing subpattern count = 2 6546Options: dotall 6547No first char 6548Need char = 'f' 6549 abc\ndef 6550 0: abc\x0adef 6551 1: \x0a 6552 abc\rdef 6553 0: abc\x0ddef 6554 1: \x0d 6555 abc\r\ndef 6556 0: abc\x0d\x0adef 6557 1: \x0d 6558 2: \x0a 6559 6560+((?:\s|//.*\\n|/[*](?:\\n|.)*?[*]/)*)+I 6561Capturing subpattern count = 1 6562No options 6563No first char 6564No need char 6565 /* this is a C style comment */\M 6566Minimum match() limit = 120 6567Minimum match() recursion limit = 6 6568 0: /* this is a C style comment */ 6569 1: /* this is a C style comment */ 6570 6571/(?P<B>25[0-5]|2[0-4]\d|[01]?\d?\d)(?:\.(?P>B)){3}/I 6572Capturing subpattern count = 1 6573Named capturing subpatterns: 6574 B 1 6575No options 6576No first char 6577Need char = '.' 6578 6579/()()()()()()()()()()()()()()()()()()()() 6580 ()()()()()()()()()()()()()()()()()()()() 6581 ()()()()()()()()()()()()()()()()()()()() 6582 ()()()()()()()()()()()()()()()()()()()() 6583 ()()()()()()()()()()()()()()()()()()()() 6584 (.(.))/Ix 6585Capturing subpattern count = 102 6586Options: extended 6587No first char 6588No need char 6589 XY\O400 6590 0: XY 6591 1: 6592 2: 6593 3: 6594 4: 6595 5: 6596 6: 6597 7: 6598 8: 6599 9: 660010: 660111: 660212: 660313: 660414: 660515: 660616: 660717: 660818: 660919: 661020: 661121: 661222: 661323: 661424: 661525: 661626: 661727: 661828: 661929: 662030: 662131: 662232: 662333: 662434: 662535: 662636: 662737: 662838: 662939: 663040: 663141: 663242: 663343: 663444: 663545: 663646: 663747: 663848: 663949: 664050: 664151: 664252: 664353: 664454: 664555: 664656: 664757: 664858: 664959: 665060: 665161: 665262: 665363: 665464: 665565: 665666: 665767: 665868: 665969: 666070: 666171: 666272: 666373: 666474: 666575: 666676: 666777: 666878: 666979: 667080: 667181: 667282: 667383: 667484: 667585: 667686: 667787: 667888: 667989: 668090: 668191: 668292: 668393: 668494: 668595: 668696: 668797: 668898: 668999: 6690100: 6691101: XY 6692102: Y 6693 6694/(a*b|(?i:c*(?-i)d))/IS 6695Capturing subpattern count = 1 6696No options 6697No first char 6698No need char 6699Subject length lower bound = 1 6700Starting byte set: C a b c d 6701 6702/()[ab]xyz/IS 6703Capturing subpattern count = 1 6704No options 6705No first char 6706Need char = 'z' 6707Subject length lower bound = 4 6708Starting byte set: a b 6709 6710/(|)[ab]xyz/IS 6711Capturing subpattern count = 1 6712No options 6713No first char 6714Need char = 'z' 6715Subject length lower bound = 4 6716Starting byte set: a b 6717 6718/(|c)[ab]xyz/IS 6719Capturing subpattern count = 1 6720No options 6721No first char 6722Need char = 'z' 6723Subject length lower bound = 4 6724Starting byte set: a b c 6725 6726/(|c?)[ab]xyz/IS 6727Capturing subpattern count = 1 6728No options 6729No first char 6730Need char = 'z' 6731Subject length lower bound = 4 6732Starting byte set: a b c 6733 6734/(d?|c?)[ab]xyz/IS 6735Capturing subpattern count = 1 6736No options 6737No first char 6738Need char = 'z' 6739Subject length lower bound = 4 6740Starting byte set: a b c d 6741 6742/(d?|c)[ab]xyz/IS 6743Capturing subpattern count = 1 6744No options 6745No first char 6746Need char = 'z' 6747Subject length lower bound = 4 6748Starting byte set: a b c d 6749 6750/^a*b\d/DZ 6751------------------------------------------------------------------ 6752 Bra 6753 ^ 6754 a*+ 6755 b 6756 \d 6757 Ket 6758 End 6759------------------------------------------------------------------ 6760Capturing subpattern count = 0 6761Options: anchored 6762No first char 6763Need char = 'b' 6764 6765/^a*+b\d/DZ 6766------------------------------------------------------------------ 6767 Bra 6768 ^ 6769 a*+ 6770 b 6771 \d 6772 Ket 6773 End 6774------------------------------------------------------------------ 6775Capturing subpattern count = 0 6776Options: anchored 6777No first char 6778Need char = 'b' 6779 6780/^a*?b\d/DZ 6781------------------------------------------------------------------ 6782 Bra 6783 ^ 6784 a*+ 6785 b 6786 \d 6787 Ket 6788 End 6789------------------------------------------------------------------ 6790Capturing subpattern count = 0 6791Options: anchored 6792No first char 6793Need char = 'b' 6794 6795/^a+A\d/DZ 6796------------------------------------------------------------------ 6797 Bra 6798 ^ 6799 a++ 6800 A 6801 \d 6802 Ket 6803 End 6804------------------------------------------------------------------ 6805Capturing subpattern count = 0 6806Options: anchored 6807No first char 6808Need char = 'A' 6809 aaaA5 6810 0: aaaA5 6811 ** Failers 6812No match 6813 aaaa5 6814No match 6815 6816/^a*A\d/IiDZ 6817------------------------------------------------------------------ 6818 Bra 6819 ^ 6820 /i a* 6821 /i A 6822 \d 6823 Ket 6824 End 6825------------------------------------------------------------------ 6826Capturing subpattern count = 0 6827Options: anchored caseless 6828No first char 6829Need char = 'A' (caseless) 6830 aaaA5 6831 0: aaaA5 6832 aaaa5 6833 0: aaaa5 6834 6835/(a*|b*)[cd]/IS 6836Capturing subpattern count = 1 6837No options 6838No first char 6839No need char 6840Subject length lower bound = 1 6841Starting byte set: a b c d 6842 6843/(a+|b*)[cd]/IS 6844Capturing subpattern count = 1 6845No options 6846No first char 6847No need char 6848Subject length lower bound = 1 6849Starting byte set: a b c d 6850 6851/(a*|b+)[cd]/IS 6852Capturing subpattern count = 1 6853No options 6854No first char 6855No need char 6856Subject length lower bound = 1 6857Starting byte set: a b c d 6858 6859/(a+|b+)[cd]/IS 6860Capturing subpattern count = 1 6861No options 6862No first char 6863No need char 6864Subject length lower bound = 2 6865Starting byte set: a b 6866 6867/(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( 6868 (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( 6869 ((( 6870 a 6871 )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 6872 )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) 6873 ))) 6874/Ix 6875Capturing subpattern count = 203 6876Options: extended 6877First char = 'a' 6878No need char 6879 large nest 6880Matched, but too many substrings 6881 0: a 6882 1: a 6883 2: a 6884 3: a 6885 4: a 6886 5: a 6887 6: a 6888 7: a 6889 8: a 6890 9: a 689110: a 689211: a 689312: a 689413: a 689514: a 6896 6897/a*\d/BZ 6898------------------------------------------------------------------ 6899 Bra 6900 a*+ 6901 \d 6902 Ket 6903 End 6904------------------------------------------------------------------ 6905 6906/a*\D/BZ 6907------------------------------------------------------------------ 6908 Bra 6909 a* 6910 \D 6911 Ket 6912 End 6913------------------------------------------------------------------ 6914 6915/0*\d/BZ 6916------------------------------------------------------------------ 6917 Bra 6918 0* 6919 \d 6920 Ket 6921 End 6922------------------------------------------------------------------ 6923 6924/0*\D/BZ 6925------------------------------------------------------------------ 6926 Bra 6927 0*+ 6928 \D 6929 Ket 6930 End 6931------------------------------------------------------------------ 6932 6933/a*\s/BZ 6934------------------------------------------------------------------ 6935 Bra 6936 a*+ 6937 \s 6938 Ket 6939 End 6940------------------------------------------------------------------ 6941 6942/a*\S/BZ 6943------------------------------------------------------------------ 6944 Bra 6945 a* 6946 \S 6947 Ket 6948 End 6949------------------------------------------------------------------ 6950 6951/ *\s/BZ 6952------------------------------------------------------------------ 6953 Bra 6954 * 6955 \s 6956 Ket 6957 End 6958------------------------------------------------------------------ 6959 6960/ *\S/BZ 6961------------------------------------------------------------------ 6962 Bra 6963 *+ 6964 \S 6965 Ket 6966 End 6967------------------------------------------------------------------ 6968 6969/a*\w/BZ 6970------------------------------------------------------------------ 6971 Bra 6972 a* 6973 \w 6974 Ket 6975 End 6976------------------------------------------------------------------ 6977 6978/a*\W/BZ 6979------------------------------------------------------------------ 6980 Bra 6981 a*+ 6982 \W 6983 Ket 6984 End 6985------------------------------------------------------------------ 6986 6987/=*\w/BZ 6988------------------------------------------------------------------ 6989 Bra 6990 =*+ 6991 \w 6992 Ket 6993 End 6994------------------------------------------------------------------ 6995 6996/=*\W/BZ 6997------------------------------------------------------------------ 6998 Bra 6999 =* 7000 \W 7001 Ket 7002 End 7003------------------------------------------------------------------ 7004 7005/\d*a/BZ 7006------------------------------------------------------------------ 7007 Bra 7008 \d*+ 7009 a 7010 Ket 7011 End 7012------------------------------------------------------------------ 7013 7014/\d*2/BZ 7015------------------------------------------------------------------ 7016 Bra 7017 \d* 7018 2 7019 Ket 7020 End 7021------------------------------------------------------------------ 7022 7023/\d*\d/BZ 7024------------------------------------------------------------------ 7025 Bra 7026 \d* 7027 \d 7028 Ket 7029 End 7030------------------------------------------------------------------ 7031 7032/\d*\D/BZ 7033------------------------------------------------------------------ 7034 Bra 7035 \d*+ 7036 \D 7037 Ket 7038 End 7039------------------------------------------------------------------ 7040 7041/\d*\s/BZ 7042------------------------------------------------------------------ 7043 Bra 7044 \d*+ 7045 \s 7046 Ket 7047 End 7048------------------------------------------------------------------ 7049 7050/\d*\S/BZ 7051------------------------------------------------------------------ 7052 Bra 7053 \d* 7054 \S 7055 Ket 7056 End 7057------------------------------------------------------------------ 7058 7059/\d*\w/BZ 7060------------------------------------------------------------------ 7061 Bra 7062 \d* 7063 \w 7064 Ket 7065 End 7066------------------------------------------------------------------ 7067 7068/\d*\W/BZ 7069------------------------------------------------------------------ 7070 Bra 7071 \d*+ 7072 \W 7073 Ket 7074 End 7075------------------------------------------------------------------ 7076 7077/\D*a/BZ 7078------------------------------------------------------------------ 7079 Bra 7080 \D* 7081 a 7082 Ket 7083 End 7084------------------------------------------------------------------ 7085 7086/\D*2/BZ 7087------------------------------------------------------------------ 7088 Bra 7089 \D*+ 7090 2 7091 Ket 7092 End 7093------------------------------------------------------------------ 7094 7095/\D*\d/BZ 7096------------------------------------------------------------------ 7097 Bra 7098 \D*+ 7099 \d 7100 Ket 7101 End 7102------------------------------------------------------------------ 7103 7104/\D*\D/BZ 7105------------------------------------------------------------------ 7106 Bra 7107 \D* 7108 \D 7109 Ket 7110 End 7111------------------------------------------------------------------ 7112 7113/\D*\s/BZ 7114------------------------------------------------------------------ 7115 Bra 7116 \D* 7117 \s 7118 Ket 7119 End 7120------------------------------------------------------------------ 7121 7122/\D*\S/BZ 7123------------------------------------------------------------------ 7124 Bra 7125 \D* 7126 \S 7127 Ket 7128 End 7129------------------------------------------------------------------ 7130 7131/\D*\w/BZ 7132------------------------------------------------------------------ 7133 Bra 7134 \D* 7135 \w 7136 Ket 7137 End 7138------------------------------------------------------------------ 7139 7140/\D*\W/BZ 7141------------------------------------------------------------------ 7142 Bra 7143 \D* 7144 \W 7145 Ket 7146 End 7147------------------------------------------------------------------ 7148 7149/\s*a/BZ 7150------------------------------------------------------------------ 7151 Bra 7152 \s*+ 7153 a 7154 Ket 7155 End 7156------------------------------------------------------------------ 7157 7158/\s*2/BZ 7159------------------------------------------------------------------ 7160 Bra 7161 \s*+ 7162 2 7163 Ket 7164 End 7165------------------------------------------------------------------ 7166 7167/\s*\d/BZ 7168------------------------------------------------------------------ 7169 Bra 7170 \s*+ 7171 \d 7172 Ket 7173 End 7174------------------------------------------------------------------ 7175 7176/\s*\D/BZ 7177------------------------------------------------------------------ 7178 Bra 7179 \s* 7180 \D 7181 Ket 7182 End 7183------------------------------------------------------------------ 7184 7185/\s*\s/BZ 7186------------------------------------------------------------------ 7187 Bra 7188 \s* 7189 \s 7190 Ket 7191 End 7192------------------------------------------------------------------ 7193 7194/\s*\S/BZ 7195------------------------------------------------------------------ 7196 Bra 7197 \s*+ 7198 \S 7199 Ket 7200 End 7201------------------------------------------------------------------ 7202 7203/\s*\w/BZ 7204------------------------------------------------------------------ 7205 Bra 7206 \s*+ 7207 \w 7208 Ket 7209 End 7210------------------------------------------------------------------ 7211 7212/\s*\W/BZ 7213------------------------------------------------------------------ 7214 Bra 7215 \s* 7216 \W 7217 Ket 7218 End 7219------------------------------------------------------------------ 7220 7221/\S*a/BZ 7222------------------------------------------------------------------ 7223 Bra 7224 \S* 7225 a 7226 Ket 7227 End 7228------------------------------------------------------------------ 7229 7230/\S*2/BZ 7231------------------------------------------------------------------ 7232 Bra 7233 \S* 7234 2 7235 Ket 7236 End 7237------------------------------------------------------------------ 7238 7239/\S*\d/BZ 7240------------------------------------------------------------------ 7241 Bra 7242 \S* 7243 \d 7244 Ket 7245 End 7246------------------------------------------------------------------ 7247 7248/\S*\D/BZ 7249------------------------------------------------------------------ 7250 Bra 7251 \S* 7252 \D 7253 Ket 7254 End 7255------------------------------------------------------------------ 7256 7257/\S*\s/BZ 7258------------------------------------------------------------------ 7259 Bra 7260 \S*+ 7261 \s 7262 Ket 7263 End 7264------------------------------------------------------------------ 7265 7266/\S*\S/BZ 7267------------------------------------------------------------------ 7268 Bra 7269 \S* 7270 \S 7271 Ket 7272 End 7273------------------------------------------------------------------ 7274 7275/\S*\w/BZ 7276------------------------------------------------------------------ 7277 Bra 7278 \S* 7279 \w 7280 Ket 7281 End 7282------------------------------------------------------------------ 7283 7284/\S*\W/BZ 7285------------------------------------------------------------------ 7286 Bra 7287 \S* 7288 \W 7289 Ket 7290 End 7291------------------------------------------------------------------ 7292 7293/\w*a/BZ 7294------------------------------------------------------------------ 7295 Bra 7296 \w* 7297 a 7298 Ket 7299 End 7300------------------------------------------------------------------ 7301 7302/\w*2/BZ 7303------------------------------------------------------------------ 7304 Bra 7305 \w* 7306 2 7307 Ket 7308 End 7309------------------------------------------------------------------ 7310 7311/\w*\d/BZ 7312------------------------------------------------------------------ 7313 Bra 7314 \w* 7315 \d 7316 Ket 7317 End 7318------------------------------------------------------------------ 7319 7320/\w*\D/BZ 7321------------------------------------------------------------------ 7322 Bra 7323 \w* 7324 \D 7325 Ket 7326 End 7327------------------------------------------------------------------ 7328 7329/\w*\s/BZ 7330------------------------------------------------------------------ 7331 Bra 7332 \w*+ 7333 \s 7334 Ket 7335 End 7336------------------------------------------------------------------ 7337 7338/\w*\S/BZ 7339------------------------------------------------------------------ 7340 Bra 7341 \w* 7342 \S 7343 Ket 7344 End 7345------------------------------------------------------------------ 7346 7347/\w*\w/BZ 7348------------------------------------------------------------------ 7349 Bra 7350 \w* 7351 \w 7352 Ket 7353 End 7354------------------------------------------------------------------ 7355 7356/\w*\W/BZ 7357------------------------------------------------------------------ 7358 Bra 7359 \w*+ 7360 \W 7361 Ket 7362 End 7363------------------------------------------------------------------ 7364 7365/\W*a/BZ 7366------------------------------------------------------------------ 7367 Bra 7368 \W*+ 7369 a 7370 Ket 7371 End 7372------------------------------------------------------------------ 7373 7374/\W*2/BZ 7375------------------------------------------------------------------ 7376 Bra 7377 \W*+ 7378 2 7379 Ket 7380 End 7381------------------------------------------------------------------ 7382 7383/\W*\d/BZ 7384------------------------------------------------------------------ 7385 Bra 7386 \W*+ 7387 \d 7388 Ket 7389 End 7390------------------------------------------------------------------ 7391 7392/\W*\D/BZ 7393------------------------------------------------------------------ 7394 Bra 7395 \W* 7396 \D 7397 Ket 7398 End 7399------------------------------------------------------------------ 7400 7401/\W*\s/BZ 7402------------------------------------------------------------------ 7403 Bra 7404 \W* 7405 \s 7406 Ket 7407 End 7408------------------------------------------------------------------ 7409 7410/\W*\S/BZ 7411------------------------------------------------------------------ 7412 Bra 7413 \W* 7414 \S 7415 Ket 7416 End 7417------------------------------------------------------------------ 7418 7419/\W*\w/BZ 7420------------------------------------------------------------------ 7421 Bra 7422 \W*+ 7423 \w 7424 Ket 7425 End 7426------------------------------------------------------------------ 7427 7428/\W*\W/BZ 7429------------------------------------------------------------------ 7430 Bra 7431 \W* 7432 \W 7433 Ket 7434 End 7435------------------------------------------------------------------ 7436 7437/[^a]+a/BZ 7438------------------------------------------------------------------ 7439 Bra 7440 [^a]++ 7441 a 7442 Ket 7443 End 7444------------------------------------------------------------------ 7445 7446/[^a]+a/BZi 7447------------------------------------------------------------------ 7448 Bra 7449 /i [^a]++ 7450 /i a 7451 Ket 7452 End 7453------------------------------------------------------------------ 7454 7455/[^a]+A/BZi 7456------------------------------------------------------------------ 7457 Bra 7458 /i [^a]++ 7459 /i A 7460 Ket 7461 End 7462------------------------------------------------------------------ 7463 7464/[^a]+b/BZ 7465------------------------------------------------------------------ 7466 Bra 7467 [^a]+ 7468 b 7469 Ket 7470 End 7471------------------------------------------------------------------ 7472 7473/[^a]+\d/BZ 7474------------------------------------------------------------------ 7475 Bra 7476 [^a]+ 7477 \d 7478 Ket 7479 End 7480------------------------------------------------------------------ 7481 7482/a*[^a]/BZ 7483------------------------------------------------------------------ 7484 Bra 7485 a* 7486 [^a] 7487 Ket 7488 End 7489------------------------------------------------------------------ 7490 7491/(?P<abc>x)(?P<xyz>y)/I 7492Capturing subpattern count = 2 7493Named capturing subpatterns: 7494 abc 1 7495 xyz 2 7496No options 7497First char = 'x' 7498Need char = 'y' 7499 xy\Cabc\Cxyz 7500 0: xy 7501 1: x 7502 2: y 7503 C x (1) abc 7504 C y (1) xyz 7505 7506/(?<abc>x)(?'xyz'y)/I 7507Capturing subpattern count = 2 7508Named capturing subpatterns: 7509 abc 1 7510 xyz 2 7511No options 7512First char = 'x' 7513Need char = 'y' 7514 xy\Cabc\Cxyz 7515 0: xy 7516 1: x 7517 2: y 7518 C x (1) abc 7519 C y (1) xyz 7520 7521/(?<abc'x)(?'xyz'y)/I 7522Failed: syntax error in subpattern name (missing terminator) at offset 6 7523 7524/(?<abc>x)(?'xyz>y)/I 7525Failed: syntax error in subpattern name (missing terminator) at offset 15 7526 7527/(?P'abc'x)(?P<xyz>y)/I 7528Failed: unrecognized character after (?P at offset 3 7529 7530/^(?:(?(ZZ)a|b)(?<ZZ>X))+/ 7531 bXaX 7532 0: bXaX 7533 1: X 7534 bXbX 7535 0: bX 7536 1: X 7537 ** Failers 7538No match 7539 aXaX 7540No match 7541 aXbX 7542No match 7543 7544/^(?P>abc)(?<abcd>xxx)/ 7545Failed: reference to non-existent subpattern at offset 8 7546 7547/^(?P>abc)(?<abc>x|y)/ 7548 xx 7549 0: xx 7550 1: x 7551 xy 7552 0: xy 7553 1: y 7554 yy 7555 0: yy 7556 1: y 7557 yx 7558 0: yx 7559 1: x 7560 7561/^(?P>abc)(?P<abc>x|y)/ 7562 xx 7563 0: xx 7564 1: x 7565 xy 7566 0: xy 7567 1: y 7568 yy 7569 0: yy 7570 1: y 7571 yx 7572 0: yx 7573 1: x 7574 7575/^((?(abc)a|b)(?<abc>x|y))+/ 7576 bxay 7577 0: bxay 7578 1: ay 7579 2: y 7580 bxby 7581 0: bx 7582 1: bx 7583 2: x 7584 ** Failers 7585No match 7586 axby 7587No match 7588 7589/^(((?P=abc)|X)(?<abc>x|y))+/ 7590 XxXxxx 7591 0: XxXxxx 7592 1: xx 7593 2: x 7594 3: x 7595 XxXyyx 7596 0: XxXyyx 7597 1: yx 7598 2: y 7599 3: x 7600 XxXyxx 7601 0: XxXy 7602 1: Xy 7603 2: X 7604 3: y 7605 ** Failers 7606No match 7607 x 7608No match 7609 7610/^(?1)(abc)/ 7611 abcabc 7612 0: abcabc 7613 1: abc 7614 7615/^(?:(?:\1|X)(a|b))+/ 7616 Xaaa 7617 0: Xaaa 7618 1: a 7619 Xaba 7620 0: Xa 7621 1: a 7622 7623/^[\E\Qa\E-\Qz\E]+/BZ 7624------------------------------------------------------------------ 7625 Bra 7626 ^ 7627 [a-z]+ 7628 Ket 7629 End 7630------------------------------------------------------------------ 7631 7632/^[a\Q]bc\E]/BZ 7633------------------------------------------------------------------ 7634 Bra 7635 ^ 7636 [\]a-c] 7637 Ket 7638 End 7639------------------------------------------------------------------ 7640 7641/^[a-\Q\E]/BZ 7642------------------------------------------------------------------ 7643 Bra 7644 ^ 7645 [\-a] 7646 Ket 7647 End 7648------------------------------------------------------------------ 7649 7650/^(?P>abc)[()](?<abc>)/BZ 7651------------------------------------------------------------------ 7652 Bra 7653 ^ 7654 Recurse 7655 [()] 7656 CBra 1 7657 Ket 7658 Ket 7659 End 7660------------------------------------------------------------------ 7661 7662/^((?(abc)y)[()](?P<abc>x))+/BZ 7663------------------------------------------------------------------ 7664 Bra 7665 ^ 7666 CBra 1 7667 Cond 7668 2 Cond nref 7669 y 7670 Ket 7671 [()] 7672 CBra 2 7673 x 7674 Ket 7675 KetRmax 7676 Ket 7677 End 7678------------------------------------------------------------------ 7679 (xy)x 7680 0: (xy)x 7681 1: y)x 7682 2: x 7683 7684/^(?P>abc)\Q()\E(?<abc>)/BZ 7685------------------------------------------------------------------ 7686 Bra 7687 ^ 7688 Recurse 7689 () 7690 CBra 1 7691 Ket 7692 Ket 7693 End 7694------------------------------------------------------------------ 7695 7696/^(?P>abc)[a\Q(]\E(](?<abc>)/BZ 7697------------------------------------------------------------------ 7698 Bra 7699 ^ 7700 Recurse 7701 [(\]a] 7702 CBra 1 7703 Ket 7704 Ket 7705 End 7706------------------------------------------------------------------ 7707 7708/^(?P>abc) # this is (a comment) 7709 (?<abc>)/BZx 7710------------------------------------------------------------------ 7711 Bra 7712 ^ 7713 Recurse 7714 CBra 1 7715 Ket 7716 Ket 7717 End 7718------------------------------------------------------------------ 7719 7720/^\W*(?:(?<one>(?<two>.)\W*(?&one)\W*\k<two>|)|(?<three>(?<four>.)\W*(?&three)\W*\k'four'|\W*.\W*))\W*$/Ii 7721Capturing subpattern count = 4 7722Max back reference = 4 7723Named capturing subpatterns: 7724 four 4 7725 one 1 7726 three 3 7727 two 2 7728Options: anchored caseless 7729No first char 7730No need char 7731 1221 7732 0: 1221 7733 1: 1221 7734 2: 1 7735 Satan, oscillate my metallic sonatas! 7736 0: Satan, oscillate my metallic sonatas! 7737 1: <unset> 7738 2: <unset> 7739 3: Satan, oscillate my metallic sonatas 7740 4: S 7741 A man, a plan, a canal: Panama! 7742 0: A man, a plan, a canal: Panama! 7743 1: <unset> 7744 2: <unset> 7745 3: A man, a plan, a canal: Panama 7746 4: A 7747 Able was I ere I saw Elba. 7748 0: Able was I ere I saw Elba. 7749 1: <unset> 7750 2: <unset> 7751 3: Able was I ere I saw Elba 7752 4: A 7753 *** Failers 7754No match 7755 The quick brown fox 7756No match 7757 7758/(?=(\w+))\1:/I 7759Capturing subpattern count = 1 7760Max back reference = 1 7761No options 7762No first char 7763Need char = ':' 7764 abcd: 7765 0: abcd: 7766 1: abcd 7767 7768/(?=(?'abc'\w+))\k<abc>:/I 7769Capturing subpattern count = 1 7770Max back reference = 1 7771Named capturing subpatterns: 7772 abc 1 7773No options 7774No first char 7775Need char = ':' 7776 abcd: 7777 0: abcd: 7778 1: abcd 7779 7780/(?'abc'a|b)(?<abc>d|e)\k<abc>{2}/J 7781 adaa 7782 0: adaa 7783 1: a 7784 2: d 7785 ** Failers 7786No match 7787 addd 7788No match 7789 adbb 7790No match 7791 7792/(?'abc'a|b)(?<abc>d|e)(?&abc){2}/J 7793 bdaa 7794 0: bdaa 7795 1: b 7796 2: d 7797 bdab 7798 0: bdab 7799 1: b 7800 2: d 7801 ** Failers 7802No match 7803 bddd 7804No match 7805 7806/(?(<bc))/ 7807Failed: malformed number or name after (?( at offset 6 7808 7809/(?(''))/ 7810Failed: assertion expected after (?( at offset 4 7811 7812/(?('R')stuff)/ 7813Failed: reference to non-existent subpattern at offset 7 7814 7815/((abc (?(R) (?(R1)1) (?(R2)2) X | (?1) (?2) (?R) ))) /x 7816 abcabc1Xabc2XabcXabcabc 7817 0: abcabc1Xabc2XabcX 7818 1: abcabc1Xabc2XabcX 7819 2: abcabc1Xabc2XabcX 7820 7821/(?<A> (?'B' abc (?(R) (?(R&A)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x 7822 abcabc1Xabc2XabcXabcabc 7823 0: abcabc1Xabc2XabcX 7824 1: abcabc1Xabc2XabcX 7825 2: abcabc1Xabc2XabcX 7826 7827/(?<A> (?'B' abc (?(R) (?(R&1)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x 7828Failed: reference to non-existent subpattern at offset 29 7829 7830/(?<1> (?'B' abc (?(R) (?(R&1)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x 7831 abcabc1Xabc2XabcXabcabc 7832 0: abcabc1Xabc2XabcX 7833 1: abcabc1Xabc2XabcX 7834 2: abcabc1Xabc2XabcX 7835 7836/^(?(DEFINE) abc | xyz ) /x 7837Failed: DEFINE group contains more than one branch at offset 22 7838 7839/(?(DEFINE) abc) xyz/xI 7840Capturing subpattern count = 0 7841Options: extended 7842First char = 'x' 7843Need char = 'z' 7844 7845/(a|)*\d/ 7846 \O0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 7847No match 7848 \O0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 7849Matched, but too many substrings 7850 7851/^a.b/<lf> 7852 a\rb 7853 0: a\x0db 7854 a\nb\<cr> 7855 0: a\x0ab 7856 a\x85b\<anycrlf> 7857 0: a\x85b 7858 ** Failers 7859No match 7860 a\nb 7861No match 7862 a\nb\<any> 7863No match 7864 a\rb\<cr> 7865No match 7866 a\rb\<any> 7867No match 7868 a\x85b\<any> 7869No match 7870 a\rb\<anycrlf> 7871No match 7872 7873/^abc./mgx<any> 7874 abc1 \x0aabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\x0aabc6 \x85abc7 JUNK 7875 0: abc1 7876 0: abc2 7877 0: abc3 7878 0: abc4 7879 0: abc5 7880 0: abc6 7881 0: abc7 7882 7883/abc.$/mgx<any> 7884 abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc7 abc9 7885 0: abc1 7886 0: abc2 7887 0: abc3 7888 0: abc4 7889 0: abc5 7890 0: abc6 7891 0: abc9 7892 7893/a/<cr><any> 7894 7895/a/<any><crlf> 7896Failed: inconsistent NEWLINE options at offset 0 7897 7898/^a\Rb/<bsr_unicode> 7899 a\nb 7900 0: a\x0ab 7901 a\rb 7902 0: a\x0db 7903 a\r\nb 7904 0: a\x0d\x0ab 7905 a\x0bb 7906 0: a\x0bb 7907 a\x0cb 7908 0: a\x0cb 7909 a\x85b 7910 0: a\x85b 7911 ** Failers 7912No match 7913 a\n\rb 7914No match 7915 7916/^a\R*b/<bsr_unicode> 7917 ab 7918 0: ab 7919 a\nb 7920 0: a\x0ab 7921 a\rb 7922 0: a\x0db 7923 a\r\nb 7924 0: a\x0d\x0ab 7925 a\x0bb 7926 0: a\x0bb 7927 a\x0cb 7928 0: a\x0cb 7929 a\x85b 7930 0: a\x85b 7931 a\n\rb 7932 0: a\x0a\x0db 7933 a\n\r\x85\x0cb 7934 0: a\x0a\x0d\x85\x0cb 7935 7936/^a\R+b/<bsr_unicode> 7937 a\nb 7938 0: a\x0ab 7939 a\rb 7940 0: a\x0db 7941 a\r\nb 7942 0: a\x0d\x0ab 7943 a\x0bb 7944 0: a\x0bb 7945 a\x0cb 7946 0: a\x0cb 7947 a\x85b 7948 0: a\x85b 7949 a\n\rb 7950 0: a\x0a\x0db 7951 a\n\r\x85\x0cb 7952 0: a\x0a\x0d\x85\x0cb 7953 ** Failers 7954No match 7955 ab 7956No match 7957 7958/^a\R{1,3}b/<bsr_unicode> 7959 a\nb 7960 0: a\x0ab 7961 a\n\rb 7962 0: a\x0a\x0db 7963 a\n\r\x85b 7964 0: a\x0a\x0d\x85b 7965 a\r\n\r\nb 7966 0: a\x0d\x0a\x0d\x0ab 7967 a\r\n\r\n\r\nb 7968 0: a\x0d\x0a\x0d\x0a\x0d\x0ab 7969 a\n\r\n\rb 7970 0: a\x0a\x0d\x0a\x0db 7971 a\n\n\r\nb 7972 0: a\x0a\x0a\x0d\x0ab 7973 ** Failers 7974No match 7975 a\n\n\n\rb 7976No match 7977 a\r 7978No match 7979 7980/^a[\R]b/<bsr_unicode> 7981 aRb 7982 0: aRb 7983 ** Failers 7984No match 7985 a\nb 7986No match 7987 7988/(?&abc)X(?<abc>P)/I 7989Capturing subpattern count = 1 7990Named capturing subpatterns: 7991 abc 1 7992No options 7993No first char 7994Need char = 'P' 7995 abcPXP123 7996 0: PXP 7997 1: P 7998 7999/(?1)X(?<abc>P)/I 8000Capturing subpattern count = 1 8001Named capturing subpatterns: 8002 abc 1 8003No options 8004No first char 8005Need char = 'P' 8006 abcPXP123 8007 0: PXP 8008 1: P 8009 8010/(?:a(?&abc)b)*(?<abc>x)/ 8011 123axbaxbaxbx456 8012 0: axbaxbaxbx 8013 1: x 8014 123axbaxbaxb456 8015 0: x 8016 1: x 8017 8018/(?:a(?&abc)b){1,5}(?<abc>x)/ 8019 123axbaxbaxbx456 8020 0: axbaxbaxbx 8021 1: x 8022 8023/(?:a(?&abc)b){2,5}(?<abc>x)/ 8024 123axbaxbaxbx456 8025 0: axbaxbaxbx 8026 1: x 8027 8028/(?:a(?&abc)b){2,}(?<abc>x)/ 8029 123axbaxbaxbx456 8030 0: axbaxbaxbx 8031 1: x 8032 8033/(abc)(?i:(?1))/ 8034 defabcabcxyz 8035 0: abcabc 8036 1: abc 8037 DEFabcABCXYZ 8038No match 8039 8040/(abc)(?:(?i)(?1))/ 8041 defabcabcxyz 8042 0: abcabc 8043 1: abc 8044 DEFabcABCXYZ 8045No match 8046 8047/^(a)\g-2/ 8048Failed: reference to non-existent subpattern at offset 7 8049 8050/^(a)\g/ 8051Failed: a numbered reference must not be zero at offset 5 8052 8053/^(a)\g{0}/ 8054Failed: a numbered reference must not be zero at offset 8 8055 8056/^(a)\g{3/ 8057Failed: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number at offset 8 8058 8059/^(a)\g{4a}/ 8060Failed: reference to non-existent subpattern at offset 9 8061 8062/^a.b/<lf> 8063 a\rb 8064 0: a\x0db 8065 *** Failers 8066No match 8067 a\nb 8068No match 8069 8070/.+foo/ 8071 afoo 8072 0: afoo 8073 ** Failers 8074No match 8075 \r\nfoo 8076No match 8077 \nfoo 8078No match 8079 8080/.+foo/<crlf> 8081 afoo 8082 0: afoo 8083 \nfoo 8084 0: \x0afoo 8085 ** Failers 8086No match 8087 \r\nfoo 8088No match 8089 8090/.+foo/<any> 8091 afoo 8092 0: afoo 8093 ** Failers 8094No match 8095 \nfoo 8096No match 8097 \r\nfoo 8098No match 8099 8100/.+foo/s 8101 afoo 8102 0: afoo 8103 \r\nfoo 8104 0: \x0d\x0afoo 8105 \nfoo 8106 0: \x0afoo 8107 8108/^$/mg<any> 8109 abc\r\rxyz 8110 0: 8111 abc\n\rxyz 8112 0: 8113 ** Failers 8114No match 8115 abc\r\nxyz 8116No match 8117 8118/(?m)^$/<any>g+ 8119 abc\r\n\r\n 8120 0: 8121 0+ \x0d\x0a 8122 8123/(?m)^$|^\r\n/<any>g+ 8124 abc\r\n\r\n 8125 0: 8126 0+ \x0d\x0a 8127 0: \x0d\x0a 8128 0+ 8129 8130/(?m)$/<any>g+ 8131 abc\r\n\r\n 8132 0: 8133 0+ \x0d\x0a\x0d\x0a 8134 0: 8135 0+ \x0d\x0a 8136 0: 8137 0+ 8138 8139/abc.$/mgx<anycrlf> 8140 abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc9 8141 0: abc1 8142 0: abc4 8143 0: abc5 8144 0: abc9 8145 8146/^X/m 8147 XABC 8148 0: X 8149 ** Failers 8150No match 8151 XABC\B 8152No match 8153 8154/(ab|c)(?-1)/BZ 8155------------------------------------------------------------------ 8156 Bra 8157 CBra 1 8158 ab 8159 Alt 8160 c 8161 Ket 8162 Recurse 8163 Ket 8164 End 8165------------------------------------------------------------------ 8166 abc 8167 0: abc 8168 1: ab 8169 8170/xy(?+1)(abc)/BZ 8171------------------------------------------------------------------ 8172 Bra 8173 xy 8174 Recurse 8175 CBra 1 8176 abc 8177 Ket 8178 Ket 8179 End 8180------------------------------------------------------------------ 8181 xyabcabc 8182 0: xyabcabc 8183 1: abc 8184 ** Failers 8185No match 8186 xyabc 8187No match 8188 8189/x(?-0)y/ 8190Failed: a numbered reference must not be zero at offset 5 8191 8192/x(?-1)y/ 8193Failed: reference to non-existent subpattern at offset 5 8194 8195/x(?+0)y/ 8196Failed: a numbered reference must not be zero at offset 5 8197 8198/x(?+1)y/ 8199Failed: reference to non-existent subpattern at offset 5 8200 8201/^(abc)?(?(-1)X|Y)/BZ 8202------------------------------------------------------------------ 8203 Bra 8204 ^ 8205 Brazero 8206 CBra 1 8207 abc 8208 Ket 8209 Cond 8210 1 Cond ref 8211 X 8212 Alt 8213 Y 8214 Ket 8215 Ket 8216 End 8217------------------------------------------------------------------ 8218 abcX 8219 0: abcX 8220 1: abc 8221 Y 8222 0: Y 8223 ** Failers 8224No match 8225 abcY 8226No match 8227 8228/^((?(+1)X|Y)(abc))+/BZ 8229------------------------------------------------------------------ 8230 Bra 8231 ^ 8232 CBra 1 8233 Cond 8234 2 Cond ref 8235 X 8236 Alt 8237 Y 8238 Ket 8239 CBra 2 8240 abc 8241 Ket 8242 KetRmax 8243 Ket 8244 End 8245------------------------------------------------------------------ 8246 YabcXabc 8247 0: YabcXabc 8248 1: Xabc 8249 2: abc 8250 YabcXabcXabc 8251 0: YabcXabcXabc 8252 1: Xabc 8253 2: abc 8254 ** Failers 8255No match 8256 XabcXabc 8257No match 8258 8259/(?(-1)a)/BZ 8260Failed: reference to non-existent subpattern at offset 6 8261 8262/((?(-1)a))/BZ 8263------------------------------------------------------------------ 8264 Bra 8265 CBra 1 8266 Cond 8267 1 Cond ref 8268 a 8269 Ket 8270 Ket 8271 Ket 8272 End 8273------------------------------------------------------------------ 8274 8275/((?(-2)a))/BZ 8276Failed: reference to non-existent subpattern at offset 7 8277 8278/^(?(+1)X|Y)(.)/BZ 8279------------------------------------------------------------------ 8280 Bra 8281 ^ 8282 Cond 8283 1 Cond ref 8284 X 8285 Alt 8286 Y 8287 Ket 8288 CBra 1 8289 Any 8290 Ket 8291 Ket 8292 End 8293------------------------------------------------------------------ 8294 Y! 8295 0: Y! 8296 1: ! 8297 8298/(?<A>tom|bon)-\k{A}/ 8299 tom-tom 8300 0: tom-tom 8301 1: tom 8302 bon-bon 8303 0: bon-bon 8304 1: bon 8305 ** Failers 8306No match 8307 tom-bon 8308No match 8309 8310/\g{A/ 8311Failed: syntax error in subpattern name (missing terminator) at offset 4 8312 8313/(?|(abc)|(xyz))/BZ 8314------------------------------------------------------------------ 8315 Bra 8316 Bra 8317 CBra 1 8318 abc 8319 Ket 8320 Alt 8321 CBra 1 8322 xyz 8323 Ket 8324 Ket 8325 Ket 8326 End 8327------------------------------------------------------------------ 8328 >abc< 8329 0: abc 8330 1: abc 8331 >xyz< 8332 0: xyz 8333 1: xyz 8334 8335/(x)(?|(abc)|(xyz))(x)/BZ 8336------------------------------------------------------------------ 8337 Bra 8338 CBra 1 8339 x 8340 Ket 8341 Bra 8342 CBra 2 8343 abc 8344 Ket 8345 Alt 8346 CBra 2 8347 xyz 8348 Ket 8349 Ket 8350 CBra 3 8351 x 8352 Ket 8353 Ket 8354 End 8355------------------------------------------------------------------ 8356 xabcx 8357 0: xabcx 8358 1: x 8359 2: abc 8360 3: x 8361 xxyzx 8362 0: xxyzx 8363 1: x 8364 2: xyz 8365 3: x 8366 8367/(x)(?|(abc)(pqr)|(xyz))(x)/BZ 8368------------------------------------------------------------------ 8369 Bra 8370 CBra 1 8371 x 8372 Ket 8373 Bra 8374 CBra 2 8375 abc 8376 Ket 8377 CBra 3 8378 pqr 8379 Ket 8380 Alt 8381 CBra 2 8382 xyz 8383 Ket 8384 Ket 8385 CBra 4 8386 x 8387 Ket 8388 Ket 8389 End 8390------------------------------------------------------------------ 8391 xabcpqrx 8392 0: xabcpqrx 8393 1: x 8394 2: abc 8395 3: pqr 8396 4: x 8397 xxyzx 8398 0: xxyzx 8399 1: x 8400 2: xyz 8401 3: <unset> 8402 4: x 8403 8404/\H++X/BZ 8405------------------------------------------------------------------ 8406 Bra 8407 \H++ 8408 X 8409 Ket 8410 End 8411------------------------------------------------------------------ 8412 ** Failers 8413No match 8414 XXXX 8415No match 8416 8417/\H+\hY/BZ 8418------------------------------------------------------------------ 8419 Bra 8420 \H++ 8421 \h 8422 Y 8423 Ket 8424 End 8425------------------------------------------------------------------ 8426 XXXX Y 8427 0: XXXX Y 8428 8429/\H+ Y/BZ 8430------------------------------------------------------------------ 8431 Bra 8432 \H++ 8433 Y 8434 Ket 8435 End 8436------------------------------------------------------------------ 8437 8438/\h+A/BZ 8439------------------------------------------------------------------ 8440 Bra 8441 \h++ 8442 A 8443 Ket 8444 End 8445------------------------------------------------------------------ 8446 8447/\v*B/BZ 8448------------------------------------------------------------------ 8449 Bra 8450 \v*+ 8451 B 8452 Ket 8453 End 8454------------------------------------------------------------------ 8455 8456/\V+\x0a/BZ 8457------------------------------------------------------------------ 8458 Bra 8459 \V++ 8460 \x0a 8461 Ket 8462 End 8463------------------------------------------------------------------ 8464 8465/A+\h/BZ 8466------------------------------------------------------------------ 8467 Bra 8468 A++ 8469 \h 8470 Ket 8471 End 8472------------------------------------------------------------------ 8473 8474/ *\H/BZ 8475------------------------------------------------------------------ 8476 Bra 8477 *+ 8478 \H 8479 Ket 8480 End 8481------------------------------------------------------------------ 8482 8483/A*\v/BZ 8484------------------------------------------------------------------ 8485 Bra 8486 A*+ 8487 \v 8488 Ket 8489 End 8490------------------------------------------------------------------ 8491 8492/\x0b*\V/BZ 8493------------------------------------------------------------------ 8494 Bra 8495 \x0b*+ 8496 \V 8497 Ket 8498 End 8499------------------------------------------------------------------ 8500 8501/\d+\h/BZ 8502------------------------------------------------------------------ 8503 Bra 8504 \d++ 8505 \h 8506 Ket 8507 End 8508------------------------------------------------------------------ 8509 8510/\d*\v/BZ 8511------------------------------------------------------------------ 8512 Bra 8513 \d*+ 8514 \v 8515 Ket 8516 End 8517------------------------------------------------------------------ 8518 8519/S+\h\S+\v/BZ 8520------------------------------------------------------------------ 8521 Bra 8522 S++ 8523 \h 8524 \S++ 8525 \v 8526 Ket 8527 End 8528------------------------------------------------------------------ 8529 8530/\w{3,}\h\w+\v/BZ 8531------------------------------------------------------------------ 8532 Bra 8533 \w{3} 8534 \w*+ 8535 \h 8536 \w++ 8537 \v 8538 Ket 8539 End 8540------------------------------------------------------------------ 8541 8542/\h+\d\h+\w\h+\S\h+\H/BZ 8543------------------------------------------------------------------ 8544 Bra 8545 \h++ 8546 \d 8547 \h++ 8548 \w 8549 \h++ 8550 \S 8551 \h++ 8552 \H 8553 Ket 8554 End 8555------------------------------------------------------------------ 8556 8557/\v+\d\v+\w\v+\S\v+\V/BZ 8558------------------------------------------------------------------ 8559 Bra 8560 \v++ 8561 \d 8562 \v++ 8563 \w 8564 \v+ 8565 \S 8566 \v++ 8567 \V 8568 Ket 8569 End 8570------------------------------------------------------------------ 8571 8572/\H+\h\H+\d/BZ 8573------------------------------------------------------------------ 8574 Bra 8575 \H++ 8576 \h 8577 \H+ 8578 \d 8579 Ket 8580 End 8581------------------------------------------------------------------ 8582 8583/\V+\v\V+\w/BZ 8584------------------------------------------------------------------ 8585 Bra 8586 \V++ 8587 \v 8588 \V+ 8589 \w 8590 Ket 8591 End 8592------------------------------------------------------------------ 8593 8594/\( (?: [^()]* | (?R) )* \)/x 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8597 8598/[\E]AAA/ 8599Failed: missing terminating ] for character class at offset 7 8600 8601/[\Q\E]AAA/ 8602Failed: missing terminating ] for character class at offset 9 8603 8604/[^\E]AAA/ 8605Failed: missing terminating ] for character class at offset 8 8606 8607/[^\Q\E]AAA/ 8608Failed: missing terminating ] for character class at offset 10 8609 8610/[\E^]AAA/ 8611Failed: missing terminating ] for character class at offset 8 8612 8613/[\Q\E^]AAA/ 8614Failed: missing terminating ] for character class at offset 10 8615 8616/A(*PRUNE)B(*SKIP)C(*THEN)D(*COMMIT)E(*F)F(*FAIL)G(?!)H(*ACCEPT)I/BZ 8617------------------------------------------------------------------ 8618 Bra 8619 A 8620 *PRUNE 8621 B 8622 *SKIP 8623 C 8624 *THEN 8625 D 8626 *COMMIT 8627 E 8628 *FAIL 8629 F 8630 *FAIL 8631 G 8632 *FAIL 8633 H 8634 *ACCEPT 8635 I 8636 Ket 8637 End 8638------------------------------------------------------------------ 8639 8640/^a+(*FAIL)/C 8641 aaaaaa 8642--->aaaaaa 8643 +0 ^ ^ 8644 +1 ^ a+ 8645 +3 ^ ^ (*FAIL) 8646 +3 ^ ^ (*FAIL) 8647 +3 ^ ^ (*FAIL) 8648 +3 ^ ^ (*FAIL) 8649 +3 ^ ^ (*FAIL) 8650 +3 ^^ (*FAIL) 8651No match 8652 8653/a+b?c+(*FAIL)/C 8654 aaabccc 8655--->aaabccc 8656 +0 ^ a+ 8657 +2 ^ ^ b? 8658 +4 ^ ^ c+ 8659 +6 ^ ^ (*FAIL) 8660 +6 ^ ^ (*FAIL) 8661 +6 ^ ^ (*FAIL) 8662 +4 ^ ^ c+ 8663 +2 ^ ^ b? 8664 +4 ^ ^ c+ 8665 +2 ^^ b? 8666 +4 ^^ c+ 8667 +0 ^ a+ 8668 +2 ^ ^ b? 8669 +4 ^ ^ c+ 8670 +6 ^ ^ (*FAIL) 8671 +6 ^ ^ (*FAIL) 8672 +6 ^ ^ (*FAIL) 8673 +4 ^ ^ c+ 8674 +2 ^^ b? 8675 +4 ^^ c+ 8676 +0 ^ a+ 8677 +2 ^^ b? 8678 +4 ^ ^ c+ 8679 +6 ^ ^ (*FAIL) 8680 +6 ^ ^ (*FAIL) 8681 +6 ^ ^ (*FAIL) 8682 +4 ^^ c+ 8683No match 8684 8685/a+b?(*PRUNE)c+(*FAIL)/C 8686 aaabccc 8687--->aaabccc 8688 +0 ^ a+ 8689 +2 ^ ^ b? 8690 +4 ^ ^ (*PRUNE) 8691+12 ^ ^ c+ 8692+14 ^ ^ (*FAIL) 8693+14 ^ ^ (*FAIL) 8694+14 ^ ^ (*FAIL) 8695 +0 ^ a+ 8696 +2 ^ ^ b? 8697 +4 ^ ^ (*PRUNE) 8698+12 ^ ^ c+ 8699+14 ^ ^ (*FAIL) 8700+14 ^ ^ (*FAIL) 8701+14 ^ ^ (*FAIL) 8702 +0 ^ a+ 8703 +2 ^^ b? 8704 +4 ^ ^ (*PRUNE) 8705+12 ^ ^ c+ 8706+14 ^ ^ (*FAIL) 8707+14 ^ ^ (*FAIL) 8708+14 ^ ^ (*FAIL) 8709No match 8710 8711/a+b?(*COMMIT)c+(*FAIL)/C 8712 aaabccc 8713--->aaabccc 8714 +0 ^ a+ 8715 +2 ^ ^ b? 8716 +4 ^ ^ (*COMMIT) 8717+13 ^ ^ c+ 8718+15 ^ ^ (*FAIL) 8719+15 ^ ^ (*FAIL) 8720+15 ^ ^ (*FAIL) 8721No match 8722 8723/a+b?(*SKIP)c+(*FAIL)/C 8724 aaabcccaaabccc 8725--->aaabcccaaabccc 8726 +0 ^ a+ 8727 +2 ^ ^ b? 8728 +4 ^ ^ (*SKIP) 8729+11 ^ ^ c+ 8730+13 ^ ^ (*FAIL) 8731+13 ^ ^ (*FAIL) 8732+13 ^ ^ (*FAIL) 8733 +0 ^ a+ 8734 +2 ^ ^ b? 8735 +4 ^ ^ (*SKIP) 8736+11 ^ ^ c+ 8737+13 ^ ^ (*FAIL) 8738+13 ^ ^ (*FAIL) 8739+13 ^ ^ (*FAIL) 8740No match 8741 8742/a+b?(*THEN)c+(*FAIL)/C 8743 aaabccc 8744--->aaabccc 8745 +0 ^ a+ 8746 +2 ^ ^ b? 8747 +4 ^ ^ (*THEN) 8748+11 ^ ^ c+ 8749+13 ^ ^ (*FAIL) 8750+13 ^ ^ (*FAIL) 8751+13 ^ ^ (*FAIL) 8752 +0 ^ a+ 8753 +2 ^ ^ b? 8754 +4 ^ ^ (*THEN) 8755+11 ^ ^ c+ 8756+13 ^ ^ (*FAIL) 8757+13 ^ ^ (*FAIL) 8758+13 ^ ^ (*FAIL) 8759 +0 ^ a+ 8760 +2 ^^ b? 8761 +4 ^ ^ (*THEN) 8762+11 ^ ^ c+ 8763+13 ^ ^ (*FAIL) 8764+13 ^ ^ (*FAIL) 8765+13 ^ ^ (*FAIL) 8766No match 8767 8768/a(*MARK)b/ 8769Failed: (*MARK) must have an argument at offset 7 8770 8771/(?i:A{1,}\6666666666)/ 8772Failed: number is too big at offset 19 8773 8774/\g6666666666/ 8775Failed: number is too big at offset 11 8776 8777/[\g6666666666]/BZ 8778------------------------------------------------------------------ 8779 Bra 8780 [6g] 8781 Ket 8782 End 8783------------------------------------------------------------------ 8784 8785/(?1)\c[/ 8786Failed: reference to non-existent subpattern at offset 3 8787 8788/.+A/<crlf> 8789 \r\nA 8790No match 8791 8792/\nA/<crlf> 8793 \r\nA 8794 0: \x0aA 8795 8796/[\r\n]A/<crlf> 8797 \r\nA 8798 0: \x0aA 8799 8800/(\r|\n)A/<crlf> 8801 \r\nA 8802 0: \x0aA 8803 1: \x0a 8804 8805/a(*CR)b/ 8806Failed: (*VERB) not recognized at offset 5 8807 8808/(*CR)a.b/ 8809 a\nb 8810 0: a\x0ab 8811 ** Failers 8812No match 8813 a\rb 8814No match 8815 8816/(*CR)a.b/<lf> 8817 a\nb 8818 0: a\x0ab 8819 ** Failers 8820No match 8821 a\rb 8822No match 8823 8824/(*LF)a.b/<CRLF> 8825 a\rb 8826 0: a\x0db 8827 ** Failers 8828No match 8829 a\nb 8830No match 8831 8832/(*CRLF)a.b/ 8833 a\rb 8834 0: a\x0db 8835 a\nb 8836 0: a\x0ab 8837 ** Failers 8838No match 8839 a\r\nb 8840No match 8841 8842/(*ANYCRLF)a.b/<CR> 8843 ** Failers 8844No match 8845 a\rb 8846No match 8847 a\nb 8848No match 8849 a\r\nb 8850No match 8851 8852/(*ANY)a.b/<cr> 8853 ** Failers 8854No match 8855 a\rb 8856No match 8857 a\nb 8858No match 8859 a\r\nb 8860No match 8861 a\x85b 8862No match 8863 8864/(*ANY).*/g 8865 abc\r\ndef 8866 0: abc 8867 0: 8868 0: def 8869 0: 8870 8871/(*ANYCRLF).*/g 8872 abc\r\ndef 8873 0: abc 8874 0: 8875 0: def 8876 0: 8877 8878/(*CRLF).*/g 8879 abc\r\ndef 8880 0: abc 8881 0: 8882 0: def 8883 0: 8884 8885/a\Rb/I<bsr_anycrlf> 8886Capturing subpattern count = 0 8887Options: bsr_anycrlf 8888First char = 'a' 8889Need char = 'b' 8890 a\rb 8891 0: a\x0db 8892 a\nb 8893 0: a\x0ab 8894 a\r\nb 8895 0: a\x0d\x0ab 8896 ** Failers 8897No match 8898 a\x85b 8899No match 8900 a\x0bb 8901No match 8902 8903/a\Rb/I<bsr_unicode> 8904Capturing subpattern count = 0 8905Options: bsr_unicode 8906First char = 'a' 8907Need char = 'b' 8908 a\rb 8909 0: a\x0db 8910 a\nb 8911 0: a\x0ab 8912 a\r\nb 8913 0: a\x0d\x0ab 8914 a\x85b 8915 0: a\x85b 8916 a\x0bb 8917 0: a\x0bb 8918 ** Failers 8919No match 8920 a\x85b\<bsr_anycrlf> 8921No match 8922 a\x0bb\<bsr_anycrlf> 8923No match 8924 8925/a\R?b/I<bsr_anycrlf> 8926Capturing subpattern count = 0 8927Options: bsr_anycrlf 8928First char = 'a' 8929Need char = 'b' 8930 a\rb 8931 0: a\x0db 8932 a\nb 8933 0: a\x0ab 8934 a\r\nb 8935 0: a\x0d\x0ab 8936 ** Failers 8937No match 8938 a\x85b 8939No match 8940 a\x0bb 8941No match 8942 8943/a\R?b/I<bsr_unicode> 8944Capturing subpattern count = 0 8945Options: bsr_unicode 8946First char = 'a' 8947Need char = 'b' 8948 a\rb 8949 0: a\x0db 8950 a\nb 8951 0: a\x0ab 8952 a\r\nb 8953 0: a\x0d\x0ab 8954 a\x85b 8955 0: a\x85b 8956 a\x0bb 8957 0: a\x0bb 8958 ** Failers 8959No match 8960 a\x85b\<bsr_anycrlf> 8961No match 8962 a\x0bb\<bsr_anycrlf> 8963No match 8964 8965/a\R{2,4}b/I<bsr_anycrlf> 8966Capturing subpattern count = 0 8967Options: bsr_anycrlf 8968First char = 'a' 8969Need char = 'b' 8970 a\r\n\nb 8971 0: a\x0d\x0a\x0ab 8972 a\n\r\rb 8973 0: a\x0a\x0d\x0db 8974 a\r\n\r\n\r\n\r\nb 8975 0: a\x0d\x0a\x0d\x0a\x0d\x0a\x0d\x0ab 8976 ** Failers 8977No match 8978 a\x85\85b 8979No match 8980 a\x0b\0bb 8981No match 8982 8983/a\R{2,4}b/I<bsr_unicode> 8984Capturing subpattern count = 0 8985Options: bsr_unicode 8986First char = 'a' 8987Need char = 'b' 8988 a\r\rb 8989 0: a\x0d\x0db 8990 a\n\n\nb 8991 0: a\x0a\x0a\x0ab 8992 a\r\n\n\r\rb 8993 0: a\x0d\x0a\x0a\x0d\x0db 8994 a\x85\85b 8995No match 8996 a\x0b\0bb 8997No match 8998 ** Failers 8999No match 9000 a\r\r\r\r\rb 9001No match 9002 a\x85\85b\<bsr_anycrlf> 9003No match 9004 a\x0b\0bb\<bsr_anycrlf> 9005No match 9006 9007/(*BSR_ANYCRLF)a\Rb/I 9008Capturing subpattern count = 0 9009Options: bsr_anycrlf 9010First char = 'a' 9011Need char = 'b' 9012 a\nb 9013 0: a\x0ab 9014 a\rb 9015 0: a\x0db 9016 9017/(*BSR_UNICODE)a\Rb/I 9018Capturing subpattern count = 0 9019Options: bsr_unicode 9020First char = 'a' 9021Need char = 'b' 9022 a\x85b 9023 0: a\x85b 9024 9025/(*BSR_ANYCRLF)(*CRLF)a\Rb/I 9026Capturing subpattern count = 0 9027Options: bsr_anycrlf 9028Forced newline sequence: CRLF 9029First char = 'a' 9030Need char = 'b' 9031 a\nb 9032 0: a\x0ab 9033 a\rb 9034 0: a\x0db 9035 9036/(*CRLF)(*BSR_UNICODE)a\Rb/I 9037Capturing subpattern count = 0 9038Options: bsr_unicode 9039Forced newline sequence: CRLF 9040First char = 'a' 9041Need char = 'b' 9042 a\x85b 9043 0: a\x85b 9044 9045/(*CRLF)(*BSR_ANYCRLF)(*CR)ab/I 9046Capturing subpattern count = 0 9047Options: bsr_anycrlf 9048Forced newline sequence: CR 9049First char = 'a' 9050Need char = 'b' 9051 9052/(?<a>)(?&)/ 9053Failed: subpattern name expected at offset 9 9054 9055/(?<abc>)(?&a)/ 9056Failed: reference to non-existent subpattern at offset 12 9057 9058/(?<a>)(?&aaaaaaaaaaaaaaaaaaaaaaa)/ 9059Failed: reference to non-existent subpattern at offset 32 9060 9061/(?+-a)/ 9062Failed: digit expected after (?+ at offset 3 9063 9064/(?-+a)/ 9065Failed: unrecognized character after (? or (?- at offset 3 9066 9067/(?(-1))/ 9068Failed: reference to non-existent subpattern at offset 6 9069 9070/(?(+10))/ 9071Failed: reference to non-existent subpattern at offset 7 9072 9073/(?(10))/ 9074Failed: reference to non-existent subpattern at offset 6 9075 9076/(?(+2))()()/ 9077 9078/(?(2))()()/ 9079 9080/\k''/ 9081Failed: subpattern name expected at offset 3 9082 9083/\k<>/ 9084Failed: subpattern name expected at offset 3 9085 9086/\k{}/ 9087Failed: subpattern name expected at offset 3 9088 9089/\k/ 9090Failed: \k is not followed by a braced, angle-bracketed, or quoted name at offset 2 9091 9092/\kabc/ 9093Failed: \k is not followed by a braced, angle-bracketed, or quoted name at offset 5 9094 9095/(?P=)/ 9096Failed: subpattern name expected at offset 4 9097 9098/(?P>)/ 9099Failed: subpattern name expected at offset 4 9100 9101/(?!\w)(?R)/ 9102Failed: recursive call could loop indefinitely at offset 9 9103 9104/(?=\w)(?R)/ 9105Failed: recursive call could loop indefinitely at offset 9 9106 9107/(?<!\w)(?R)/ 9108Failed: recursive call could loop indefinitely at offset 10 9109 9110/(?<=\w)(?R)/ 9111Failed: recursive call could loop indefinitely at offset 10 9112 9113/[[:foo:]]/ 9114Failed: unknown POSIX class name at offset 3 9115 9116/[[:1234:]]/ 9117Failed: unknown POSIX class name at offset 3 9118 9119/[[:f\oo:]]/ 9120Failed: unknown POSIX class name at offset 3 9121 9122/[[: :]]/ 9123Failed: unknown POSIX class name at offset 3 9124 9125/[[:...:]]/ 9126Failed: unknown POSIX class name at offset 3 9127 9128/[[:l\ower:]]/ 9129Failed: unknown POSIX class name at offset 3 9130 9131/[[:abc\:]]/ 9132Failed: unknown POSIX class name at offset 3 9133 9134/[abc[:x\]pqr:]]/ 9135Failed: unknown POSIX class name at offset 6 9136 9137/[[:a\dz:]]/ 9138Failed: unknown POSIX class name at offset 3 9139 9140/(^(a|b\g<-1'c))/ 9141Failed: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number at offset 15 9142 9143/^(?+1)(?<a>x|y){0}z/ 9144 xzxx 9145 0: xz 9146 yzyy 9147 0: yz 9148 ** Failers 9149No match 9150 xxz 9151No match 9152 9153/(\3)(\1)(a)/ 9154 cat 9155No match 9156 9157/(\3)(\1)(a)/<JS> 9158 cat 9159 0: a 9160 1: 9161 2: 9162 3: a 9163 9164/TA]/ 9165 The ACTA] comes 9166 0: TA] 9167 9168/TA]/<JS> 9169Failed: ] is an invalid data character in JavaScript compatibility mode at offset 2 9170 9171/(?2)[]a()b](abc)/ 9172Failed: reference to non-existent subpattern at offset 3 9173 9174/(?2)[^]a()b](abc)/ 9175Failed: reference to non-existent subpattern at offset 3 9176 9177/(?1)[]a()b](abc)/ 9178 abcbabc 9179 0: abcbabc 9180 1: abc 9181 ** Failers 9182No match 9183 abcXabc 9184No match 9185 9186/(?1)[^]a()b](abc)/ 9187 abcXabc 9188 0: abcXabc 9189 1: abc 9190 ** Failers 9191No match 9192 abcbabc 9193No match 9194 9195/(?2)[]a()b](abc)(xyz)/ 9196 xyzbabcxyz 9197 0: xyzbabcxyz 9198 1: abc 9199 2: xyz 9200 9201/(?&N)[]a(?<N>)](?<M>abc)/ 9202Failed: reference to non-existent subpattern at offset 4 9203 9204/(?&N)[]a(?<N>)](abc)/ 9205Failed: reference to non-existent subpattern at offset 4 9206 9207/a[]b/ 9208Failed: missing terminating ] for character class at offset 4 9209 9210/a[^]b/ 9211Failed: missing terminating ] for character class at offset 5 9212 9213/a[]b/<JS> 9214 ** Failers 9215No match 9216 ab 9217No match 9218 9219/a[]+b/<JS> 9220 ** Failers 9221No match 9222 ab 9223No match 9224 9225/a[]*+b/<JS> 9226 ** Failers 9227No match 9228 ab 9229No match 9230 9231/a[^]b/<JS> 9232 aXb 9233 0: aXb 9234 a\nb 9235 0: a\x0ab 9236 ** Failers 9237No match 9238 ab 9239No match 9240 9241/a[^]+b/<JS> 9242 aXb 9243 0: aXb 9244 a\nX\nXb 9245 0: a\x0aX\x0aXb 9246 ** Failers 9247No match 9248 ab 9249No match 9250 9251/a(?!)+b/ 9252Failed: nothing to repeat at offset 5 9253 9254/a(*FAIL)+b/ 9255Failed: nothing to repeat at offset 8 9256 9257/(abc|pqr|123){0}[xyz]/SI 9258Capturing subpattern count = 1 9259No options 9260No first char 9261No need char 9262Subject length lower bound = 1 9263Starting byte set: x y z 9264 9265/(?(?=.*b)b|^)/CI 9266Capturing subpattern count = 0 9267Options: 9268No first char 9269No need char 9270 adc 9271--->adc 9272 +0 ^ (?(?=.*b)b|^) 9273 +2 ^ (?=.*b) 9274 +5 ^ .* 9275 +7 ^ ^ b 9276 +7 ^ ^ b 9277 +7 ^^ b 9278 +7 ^ b 9279+12 ^ ) 9280+13 ^ 9281 0: 9282 abc 9283--->abc 9284 +0 ^ (?(?=.*b)b|^) 9285 +2 ^ (?=.*b) 9286 +5 ^ .* 9287 +7 ^ ^ b 9288 +7 ^ ^ b 9289 +7 ^^ b 9290 +8 ^ ^ ) 9291 +9 ^ b 9292 +0 ^ (?(?=.*b)b|^) 9293 +2 ^ (?=.*b) 9294 +5 ^ .* 9295 +7 ^ ^ b 9296 +7 ^^ b 9297 +7 ^ b 9298 +8 ^^ ) 9299 +9 ^ b 9300+10 ^^ | 9301+13 ^^ 9302 0: b 9303 9304/(?(?=b).*b|^d)/I 9305Capturing subpattern count = 0 9306No options 9307No first char 9308No need char 9309 9310/(?(?=.*b).*b|^d)/I 9311Capturing subpattern count = 0 9312No options 9313First char at start or follows newline 9314No need char 9315 9316/xyz/C 9317 xyz 9318--->xyz 9319 +0 ^ x 9320 +1 ^^ y 9321 +2 ^ ^ z 9322 +3 ^ ^ 9323 0: xyz 9324 abcxyz 9325--->abcxyz 9326 +0 ^ x 9327 +1 ^^ y 9328 +2 ^ ^ z 9329 +3 ^ ^ 9330 0: xyz 9331 abcxyz\Y 9332--->abcxyz 9333 +0 ^ x 9334 +0 ^ x 9335 +0 ^ x 9336 +0 ^ x 9337 +1 ^^ y 9338 +2 ^ ^ z 9339 +3 ^ ^ 9340 0: xyz 9341 ** Failers 9342No match 9343 abc 9344No match 9345 abc\Y 9346--->abc 9347 +0 ^ x 9348 +0 ^ x 9349 +0 ^ x 9350 +0 ^ x 9351No match 9352 abcxypqr 9353No match 9354 abcxypqr\Y 9355--->abcxypqr 9356 +0 ^ x 9357 +0 ^ x 9358 +0 ^ x 9359 +0 ^ x 9360 +1 ^^ y 9361 +2 ^ ^ z 9362 +0 ^ x 9363 +0 ^ x 9364 +0 ^ x 9365 +0 ^ x 9366 +0 ^ x 9367No match 9368 9369/(*NO_START_OPT)xyz/C 9370 abcxyz 9371--->abcxyz 9372+15 ^ x 9373+15 ^ x 9374+15 ^ x 9375+15 ^ x 9376+16 ^^ y 9377+17 ^ ^ z 9378+18 ^ ^ 9379 0: xyz 9380 9381/xyz/CY 9382 abcxyz 9383--->abcxyz 9384 +0 ^ x 9385 +0 ^ x 9386 +0 ^ x 9387 +0 ^ x 9388 +1 ^^ y 9389 +2 ^ ^ z 9390 +3 ^ ^ 9391 0: xyz 9392 9393/^"((?(?=[a])[^"])|b)*"$/C 9394 "ab" 9395--->"ab" 9396 +0 ^ ^ 9397 +1 ^ " 9398 +2 ^^ ((?(?=[a])[^"])|b)* 9399 +3 ^^ (?(?=[a])[^"]) 9400 +5 ^^ (?=[a]) 9401 +8 ^^ [a] 9402+11 ^ ^ ) 9403+12 ^^ [^"] 9404+16 ^ ^ ) 9405+17 ^ ^ | 9406 +3 ^ ^ (?(?=[a])[^"]) 9407 +5 ^ ^ (?=[a]) 9408 +8 ^ ^ [a] 9409+21 ^ ^ " 9410+18 ^ ^ b 9411+19 ^ ^ ) 9412 +3 ^ ^ (?(?=[a])[^"]) 9413 +5 ^ ^ (?=[a]) 9414 +8 ^ ^ [a] 9415+21 ^ ^ " 9416+22 ^ ^ $ 9417+23 ^ ^ 9418 0: "ab" 9419 1: 9420 9421/^"((?(?=[a])[^"])|b)*"$/ 9422 "ab" 9423 0: "ab" 9424 1: 9425 9426/^X(?5)(a)(?|(b)|(q))(c)(d)Y/ 9427Failed: reference to non-existent subpattern at offset 5 9428 9429/^X(?&N)(a)(?|(b)|(q))(c)(d)(?<N>Y)/ 9430 XYabcdY 9431 0: XYabcdY 9432 1: a 9433 2: b 9434 3: c 9435 4: d 9436 5: Y 9437 9438/Xa{2,4}b/ 9439 X\P 9440Partial match: X 9441 Xa\P 9442Partial match: Xa 9443 Xaa\P 9444Partial match: Xaa 9445 Xaaa\P 9446Partial match: Xaaa 9447 Xaaaa\P 9448Partial match: Xaaaa 9449 9450/Xa{2,4}?b/ 9451 X\P 9452Partial match: X 9453 Xa\P 9454Partial match: Xa 9455 Xaa\P 9456Partial match: Xaa 9457 Xaaa\P 9458Partial match: Xaaa 9459 Xaaaa\P 9460Partial match: Xaaaa 9461 9462/Xa{2,4}+b/ 9463 X\P 9464Partial match: X 9465 Xa\P 9466Partial match: Xa 9467 Xaa\P 9468Partial match: Xaa 9469 Xaaa\P 9470Partial match: Xaaa 9471 Xaaaa\P 9472Partial match: Xaaaa 9473 9474/X\d{2,4}b/ 9475 X\P 9476Partial match: X 9477 X3\P 9478Partial match: X3 9479 X33\P 9480Partial match: X33 9481 X333\P 9482Partial match: X333 9483 X3333\P 9484Partial match: X3333 9485 9486/X\d{2,4}?b/ 9487 X\P 9488Partial match: X 9489 X3\P 9490Partial match: X3 9491 X33\P 9492Partial match: X33 9493 X333\P 9494Partial match: X333 9495 X3333\P 9496Partial match: X3333 9497 9498/X\d{2,4}+b/ 9499 X\P 9500Partial match: X 9501 X3\P 9502Partial match: X3 9503 X33\P 9504Partial match: X33 9505 X333\P 9506Partial match: X333 9507 X3333\P 9508Partial match: X3333 9509 9510/X\D{2,4}b/ 9511 X\P 9512Partial match: X 9513 Xa\P 9514Partial match: Xa 9515 Xaa\P 9516Partial match: Xaa 9517 Xaaa\P 9518Partial match: Xaaa 9519 Xaaaa\P 9520Partial match: Xaaaa 9521 9522/X\D{2,4}?b/ 9523 X\P 9524Partial match: X 9525 Xa\P 9526Partial match: Xa 9527 Xaa\P 9528Partial match: Xaa 9529 Xaaa\P 9530Partial match: Xaaa 9531 Xaaaa\P 9532Partial match: Xaaaa 9533 9534/X\D{2,4}+b/ 9535 X\P 9536Partial match: X 9537 Xa\P 9538Partial match: Xa 9539 Xaa\P 9540Partial match: Xaa 9541 Xaaa\P 9542Partial match: Xaaa 9543 Xaaaa\P 9544Partial match: Xaaaa 9545 9546/X[abc]{2,4}b/ 9547 X\P 9548Partial match: X 9549 Xa\P 9550Partial match: Xa 9551 Xaa\P 9552Partial match: Xaa 9553 Xaaa\P 9554Partial match: Xaaa 9555 Xaaaa\P 9556Partial match: Xaaaa 9557 9558/X[abc]{2,4}?b/ 9559 X\P 9560Partial match: X 9561 Xa\P 9562Partial match: Xa 9563 Xaa\P 9564Partial match: Xaa 9565 Xaaa\P 9566Partial match: Xaaa 9567 Xaaaa\P 9568Partial match: Xaaaa 9569 9570/X[abc]{2,4}+b/ 9571 X\P 9572Partial match: X 9573 Xa\P 9574Partial match: Xa 9575 Xaa\P 9576Partial match: Xaa 9577 Xaaa\P 9578Partial match: Xaaa 9579 Xaaaa\P 9580Partial match: Xaaaa 9581 9582/X[^a]{2,4}b/ 9583 X\P 9584Partial match: X 9585 Xz\P 9586Partial match: Xz 9587 Xzz\P 9588Partial match: Xzz 9589 Xzzz\P 9590Partial match: Xzzz 9591 Xzzzz\P 9592Partial match: Xzzzz 9593 9594/X[^a]{2,4}?b/ 9595 X\P 9596Partial match: X 9597 Xz\P 9598Partial match: Xz 9599 Xzz\P 9600Partial match: Xzz 9601 Xzzz\P 9602Partial match: Xzzz 9603 Xzzzz\P 9604Partial match: Xzzzz 9605 9606/X[^a]{2,4}+b/ 9607 X\P 9608Partial match: X 9609 Xz\P 9610Partial match: Xz 9611 Xzz\P 9612Partial match: Xzz 9613 Xzzz\P 9614Partial match: Xzzz 9615 Xzzzz\P 9616Partial match: Xzzzz 9617 9618/(Y)X\1{2,4}b/ 9619 YX\P 9620Partial match: YX 9621 YXY\P 9622Partial match: YXY 9623 YXYY\P 9624Partial match: YXYY 9625 YXYYY\P 9626Partial match: YXYYY 9627 YXYYYY\P 9628Partial match: YXYYYY 9629 9630/(Y)X\1{2,4}?b/ 9631 YX\P 9632Partial match: YX 9633 YXY\P 9634Partial match: YXY 9635 YXYY\P 9636Partial match: YXYY 9637 YXYYY\P 9638Partial match: YXYYY 9639 YXYYYY\P 9640Partial match: YXYYYY 9641 9642/(Y)X\1{2,4}+b/ 9643 YX\P 9644Partial match: YX 9645 YXY\P 9646Partial match: YXY 9647 YXYY\P 9648Partial match: YXYY 9649 YXYYY\P 9650Partial match: YXYYY 9651 YXYYYY\P 9652Partial match: YXYYYY 9653 9654/\++\KZ|\d+X|9+Y/ 9655 ++++123999\P 9656Partial match: 123999 9657 ++++123999Y\P 9658 0: 999Y 9659 ++++Z1234\P 9660 0: Z 9661 9662/Z(*F)/ 9663 Z\P 9664No match 9665 ZA\P 9666No match 9667 9668/Z(?!)/ 9669 Z\P 9670No match 9671 ZA\P 9672No match 9673 9674/dog(sbody)?/ 9675 dogs\P 9676 0: dog 9677 dogs\P\P 9678Partial match: dogs 9679 9680/dog(sbody)??/ 9681 dogs\P 9682 0: dog 9683 dogs\P\P 9684 0: dog 9685 9686/dog|dogsbody/ 9687 dogs\P 9688 0: dog 9689 dogs\P\P 9690 0: dog 9691 9692/dogsbody|dog/ 9693 dogs\P 9694 0: dog 9695 dogs\P\P 9696Partial match: dogs 9697 9698/\bthe cat\b/ 9699 the cat\P 9700 0: the cat 9701 the cat\P\P 9702Partial match: the cat 9703 9704/abc/ 9705 abc\P 9706 0: abc 9707 abc\P\P 9708 0: abc 9709 9710/abc\K123/ 9711 xyzabc123pqr 9712 0: 123 9713 xyzabc12\P 9714Partial match: abc12 9715 xyzabc12\P\P 9716Partial match: abc12 9717 9718/(?<=abc)123/ 9719 xyzabc123pqr 9720 0: 123 9721 xyzabc12\P 9722Partial match: abc12 9723 xyzabc12\P\P 9724Partial match: abc12 9725 9726/\babc\b/ 9727 +++abc+++ 9728 0: abc 9729 +++ab\P 9730Partial match: +ab 9731 +++ab\P\P 9732Partial match: +ab 9733 9734/(?&word)(?&element)(?(DEFINE)(?<element><[^m][^>]>[^<])(?<word>\w*+))/BZ 9735------------------------------------------------------------------ 9736 Bra 9737 Recurse 9738 Recurse 9739 Cond 9740 Cond def 9741 CBra 1 9742 < 9743 [^m] 9744 [^>] 9745 > 9746 [^<] 9747 Ket 9748 CBra 2 9749 \w*+ 9750 Ket 9751 Ket 9752 Ket 9753 End 9754------------------------------------------------------------------ 9755 9756/(?&word)(?&element)(?(DEFINE)(?<element><[^\d][^>]>[^<])(?<word>\w*+))/BZ 9757------------------------------------------------------------------ 9758 Bra 9759 Recurse 9760 Recurse 9761 Cond 9762 Cond def 9763 CBra 1 9764 < 9765 [\x00-/:-\xff] (neg) 9766 [^>] 9767 > 9768 [^<] 9769 Ket 9770 CBra 2 9771 \w*+ 9772 Ket 9773 Ket 9774 Ket 9775 End 9776------------------------------------------------------------------ 9777 9778/(ab)(x(y)z(cd(*ACCEPT)))pq/BZ 9779------------------------------------------------------------------ 9780 Bra 9781 CBra 1 9782 ab 9783 Ket 9784 CBra 2 9785 x 9786 CBra 3 9787 y 9788 Ket 9789 z 9790 CBra 4 9791 cd 9792 Close 4 9793 Close 2 9794 *ACCEPT 9795 Ket 9796 Ket 9797 pq 9798 Ket 9799 End 9800------------------------------------------------------------------ 9801 9802/abc\K/+ 9803 abcdef 9804 0: 9805 0+ def 9806 abcdef\N\N 9807 0: 9808 0+ def 9809 xyzabcdef\N\N 9810 0: 9811 0+ def 9812 ** Failers 9813No match 9814 abcdef\N 9815No match 9816 xyzabcdef\N 9817No match 9818 9819/^(?:(?=abc)|abc\K)/+ 9820 abcdef 9821 0: 9822 0+ abcdef 9823 abcdef\N\N 9824 0: 9825 0+ def 9826 ** Failers 9827No match 9828 abcdef\N 9829No match 9830 9831/a?b?/+ 9832 xyz 9833 0: 9834 0+ xyz 9835 xyzabc 9836 0: 9837 0+ xyzabc 9838 xyzabc\N 9839 0: ab 9840 0+ c 9841 xyzabc\N\N 9842 0: 9843 0+ yzabc 9844 xyz\N\N 9845 0: 9846 0+ yz 9847 ** Failers 9848 0: 9849 0+ ** Failers 9850 xyz\N 9851No match 9852 9853/^a?b?/+ 9854 xyz 9855 0: 9856 0+ xyz 9857 xyzabc 9858 0: 9859 0+ xyzabc 9860 ** Failers 9861 0: 9862 0+ ** Failers 9863 xyzabc\N 9864No match 9865 xyzabc\N\N 9866No match 9867 xyz\N\N 9868No match 9869 xyz\N 9870No match 9871 9872/^(?<name>a|b\g<name>c)/ 9873 aaaa 9874 0: a 9875 1: a 9876 bacxxx 9877 0: bac 9878 1: bac 9879 bbaccxxx 9880 0: bbacc 9881 1: bbacc 9882 bbbacccxx 9883 0: bbbaccc 9884 1: bbbaccc 9885 9886/^(?<name>a|b\g'name'c)/ 9887 aaaa 9888 0: a 9889 1: a 9890 bacxxx 9891 0: bac 9892 1: bac 9893 bbaccxxx 9894 0: bbacc 9895 1: bbacc 9896 bbbacccxx 9897 0: bbbaccc 9898 1: bbbaccc 9899 9900/^(a|b\g<1>c)/ 9901 aaaa 9902 0: a 9903 1: a 9904 bacxxx 9905 0: bac 9906 1: bac 9907 bbaccxxx 9908 0: bbacc 9909 1: bbacc 9910 bbbacccxx 9911 0: bbbaccc 9912 1: bbbaccc 9913 9914/^(a|b\g'1'c)/ 9915 aaaa 9916 0: a 9917 1: a 9918 bacxxx 9919 0: bac 9920 1: bac 9921 bbaccxxx 9922 0: bbacc 9923 1: bbacc 9924 bbbacccxx 9925 0: bbbaccc 9926 1: bbbaccc 9927 9928/^(a|b\g'-1'c)/ 9929 aaaa 9930 0: a 9931 1: a 9932 bacxxx 9933 0: bac 9934 1: bac 9935 bbaccxxx 9936 0: bbacc 9937 1: bbacc 9938 bbbacccxx 9939 0: bbbaccc 9940 1: bbbaccc 9941 9942/(^(a|b\g<-1>c))/ 9943 aaaa 9944 0: a 9945 1: a 9946 2: a 9947 bacxxx 9948 0: bac 9949 1: bac 9950 2: bac 9951 bbaccxxx 9952 0: bbacc 9953 1: bbacc 9954 2: bbacc 9955 bbbacccxx 9956 0: bbbaccc 9957 1: bbbaccc 9958 2: bbbaccc 9959 9960/(?-i:\g<name>)(?i:(?<name>a))/ 9961 XaaX 9962 0: aa 9963 1: a 9964 XAAX 9965 0: AA 9966 1: A 9967 9968/(?i:\g<name>)(?-i:(?<name>a))/ 9969 XaaX 9970 0: aa 9971 1: a 9972 ** Failers 9973No match 9974 XAAX 9975No match 9976 9977/(?-i:\g<+1>)(?i:(a))/ 9978 XaaX 9979 0: aa 9980 1: a 9981 XAAX 9982 0: AA 9983 1: A 9984 9985/(?=(?<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>\})\}))\{/ 9986 9987/(?<n>a|b|c)\g<n>*/ 9988 abc 9989 0: abc 9990 1: a 9991 accccbbb 9992 0: accccbbb 9993 1: a 9994 9995/^X(?7)(a)(?|(b)|(q)(r)(s))(c)(d)(Y)/ 9996 XYabcdY 9997 0: XYabcdY 9998 1: a 9999 2: b 10000 3: <unset> 10001 4: <unset> 10002 5: c 10003 6: d 10004 7: Y 10005 10006/(?<=b(?1)|zzz)(a)/ 10007 xbaax 10008 0: a 10009 1: a 10010 xzzzax 10011 0: a 10012 1: a 10013 10014/(a)(?<=b\1)/ 10015Failed: lookbehind assertion is not fixed length at offset 10 10016 10017/(a)(?<=b+(?1))/ 10018Failed: lookbehind assertion is not fixed length at offset 13 10019 10020/(a+)(?<=b(?1))/ 10021Failed: lookbehind assertion is not fixed length at offset 14 10022 10023/(a(?<=b(?1)))/ 10024Failed: lookbehind assertion is not fixed length at offset 13 10025 10026/(?<=b(?1))xyz/ 10027Failed: reference to non-existent subpattern at offset 8 10028 10029/(?<=b(?1))xyz(b+)pqrstuvew/ 10030Failed: lookbehind assertion is not fixed length at offset 26 10031 10032/(a|bc)\1/SI 10033Capturing subpattern count = 1 10034Max back reference = 1 10035No options 10036No first char 10037No need char 10038Subject length lower bound = 2 10039Starting byte set: a b 10040 10041/(a|bc)\1{2,3}/SI 10042Capturing subpattern count = 1 10043Max back reference = 1 10044No options 10045No first char 10046No need char 10047Subject length lower bound = 3 10048Starting byte set: a b 10049 10050/(a|bc)(?1)/SI 10051Capturing subpattern count = 1 10052No options 10053No first char 10054No need char 10055Subject length lower bound = 2 10056Starting byte set: a b 10057 10058/(a|b\1)(a|b\1)/SI 10059Capturing subpattern count = 2 10060Max back reference = 1 10061No options 10062No first char 10063No need char 10064Subject length lower bound = 2 10065Starting byte set: a b 10066 10067/(a|b\1){2}/SI 10068Capturing subpattern count = 1 10069Max back reference = 1 10070No options 10071No first char 10072No need char 10073Subject length lower bound = 2 10074Starting byte set: a b 10075 10076/(a|bbbb\1)(a|bbbb\1)/SI 10077Capturing subpattern count = 2 10078Max back reference = 1 10079No options 10080No first char 10081No need char 10082Subject length lower bound = 2 10083Starting byte set: a b 10084 10085/(a|bbbb\1){2}/SI 10086Capturing subpattern count = 1 10087Max back reference = 1 10088No options 10089No first char 10090No need char 10091Subject length lower bound = 2 10092Starting byte set: a b 10093 10094/^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]/SI 10095Capturing subpattern count = 1 10096Options: anchored 10097No first char 10098Need char = ':' 10099Subject length lower bound = 22 10100No set of starting bytes 10101 10102/<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>/isIS 10103Capturing subpattern count = 11 10104Options: caseless dotall 10105First char = '<' 10106Need char = '>' 10107Subject length lower bound = 47 10108No set of starting bytes 10109 10110"(?>.*/)foo"SI 10111Capturing subpattern count = 0 10112No options 10113No first char 10114Need char = 'o' 10115Subject length lower bound = 4 10116No set of starting bytes 10117 10118/(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /xSI 10119Capturing subpattern count = 0 10120Options: extended 10121No first char 10122Need char = '-' 10123Subject length lower bound = 8 10124No set of starting bytes 10125 10126/(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/iSI 10127Capturing subpattern count = 1 10128Options: caseless 10129No first char 10130No need char 10131Subject length lower bound = 1 10132Starting byte set: A B C a b c 10133 10134/(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/SI 10135Capturing subpattern count = 0 10136No options 10137No first char 10138Need char = 'b' 10139Subject length lower bound = 41 10140Starting byte set: c d 10141 10142/<a[\s]+href[\s]*=[\s]* # find <a href= 10143 ([\"\'])? # find single or double quote 10144 (?(1) (.*?)\1 | ([^\s]+)) # if quote found, match up to next matching 10145 # quote, otherwise match up to next space 10146/isxSI 10147Capturing subpattern count = 3 10148Max back reference = 1 10149Options: caseless extended dotall 10150First char = '<' 10151Need char = '=' 10152Subject length lower bound = 9 10153No set of starting bytes 10154 10155/^(?!:) # colon disallowed at start 10156 (?: # start of item 10157 (?: [0-9a-f]{1,4} | # 1-4 hex digits or 10158 (?(1)0 | () ) ) # if null previously matched, fail; else null 10159 : # followed by colon 10160 ){1,7} # end item; 1-7 of them required 10161 [0-9a-f]{1,4} $ # final hex number at end of string 10162 (?(1)|.) # check that there was an empty component 10163 /xiIS 10164Capturing subpattern count = 1 10165Options: anchored caseless extended 10166No first char 10167Need char = ':' 10168Subject length lower bound = 2 10169No set of starting bytes 10170 10171/(?|(?<a>A)|(?<a>B))/I 10172Capturing subpattern count = 1 10173Named capturing subpatterns: 10174 a 1 10175 a 1 10176No options 10177No first char 10178No need char 10179 AB\Ca 10180 0: A 10181 1: A 10182 C A (1) a 10183 BA\Ca 10184 0: B 10185 1: B 10186 C B (1) a 10187 10188/(?|(?<a>A)|(?<b>B))/ 10189Failed: different names for subpatterns of the same number are not allowed at offset 15 10190 10191/(?:a(?<quote> (?<apostrophe>')|(?<realquote>")) | 10192 b(?<quote> (?<apostrophe>')|(?<realquote>")) ) 10193 (?('quote')[a-z]+|[0-9]+)/JIx 10194Capturing subpattern count = 6 10195Named capturing subpatterns: 10196 apostrophe 2 10197 apostrophe 5 10198 quote 1 10199 quote 4 10200 realquote 3 10201 realquote 6 10202Options: extended dupnames 10203No first char 10204No need char 10205 a"aaaaa 10206 0: a"aaaaa 10207 1: " 10208 2: <unset> 10209 3: " 10210 b"aaaaa 10211 0: b"aaaaa 10212 1: <unset> 10213 2: <unset> 10214 3: <unset> 10215 4: " 10216 5: <unset> 10217 6: " 10218 ** Failers 10219No match 10220 b"11111 10221No match 10222 a"11111 10223No match 10224 10225/^(?|(a)(b)(c)(?<D>d)|(?<D>e)) (?('D')X|Y)/JDZx 10226------------------------------------------------------------------ 10227 Bra 10228 ^ 10229 Bra 10230 CBra 1 10231 a 10232 Ket 10233 CBra 2 10234 b 10235 Ket 10236 CBra 3 10237 c 10238 Ket 10239 CBra 4 10240 d 10241 Ket 10242 Alt 10243 CBra 1 10244 e 10245 Ket 10246 Ket 10247 Cond 10248 4 Cond nref 10249 X 10250 Alt 10251 Y 10252 Ket 10253 Ket 10254 End 10255------------------------------------------------------------------ 10256Capturing subpattern count = 4 10257Named capturing subpatterns: 10258 D 4 10259 D 1 10260Options: anchored extended dupnames 10261No first char 10262No need char 10263 abcdX 10264 0: abcdX 10265 1: a 10266 2: b 10267 3: c 10268 4: d 10269 eX 10270 0: eX 10271 1: e 10272 ** Failers 10273No match 10274 abcdY 10275No match 10276 ey 10277No match 10278 10279/(?<A>a) (b)(c) (?<A>d (?(R&A)$ | (?4)) )/JDZx 10280------------------------------------------------------------------ 10281 Bra 10282 CBra 1 10283 a 10284 Ket 10285 CBra 2 10286 b 10287 Ket 10288 CBra 3 10289 c 10290 Ket 10291 CBra 4 10292 d 10293 Cond 10294 Cond nrecurse 1 10295 $ 10296 Alt 10297 Recurse 10298 Ket 10299 Ket 10300 Ket 10301 End 10302------------------------------------------------------------------ 10303Capturing subpattern count = 4 10304Named capturing subpatterns: 10305 A 1 10306 A 4 10307Options: extended dupnames 10308First char = 'a' 10309Need char = 'd' 10310 abcdd 10311 0: abcdd 10312 1: a 10313 2: b 10314 3: c 10315 4: dd 10316 ** Failers 10317No match 10318 abcdde 10319No match 10320 10321/abcd*/ 10322 xxxxabcd\P 10323 0: abcd 10324 xxxxabcd\P\P 10325Partial match: abcd 10326 10327/abcd*/i 10328 xxxxabcd\P 10329 0: abcd 10330 xxxxabcd\P\P 10331Partial match: abcd 10332 XXXXABCD\P 10333 0: ABCD 10334 XXXXABCD\P\P 10335Partial match: ABCD 10336 10337/abc\d*/ 10338 xxxxabc1\P 10339 0: abc1 10340 xxxxabc1\P\P 10341Partial match: abc1 10342 10343/(a)bc\1*/ 10344 xxxxabca\P 10345 0: abca 10346 1: a 10347 xxxxabca\P\P 10348Partial match: abca 10349 10350/abc[de]*/ 10351 xxxxabcde\P 10352 0: abcde 10353 xxxxabcde\P\P 10354Partial match: abcde 10355 10356/-- This is not in the Perl >= 5.10 test because Perl seems currently to be 10357 broken and not behaving as specified in that it *does* bumpalong after 10358 hitting (*COMMIT). --/ 10359 10360/(?1)(A(*COMMIT)|B)D/ 10361 ABD 10362 0: ABD 10363 1: B 10364 XABD 10365 0: ABD 10366 1: B 10367 BAD 10368 0: BAD 10369 1: A 10370 ABXABD 10371 0: ABD 10372 1: B 10373 ** Failers 10374No match 10375 ABX 10376No match 10377 BAXBAD 10378No match 10379 10380/(\3)(\1)(a)/<JS> 10381 cat 10382 0: a 10383 1: 10384 2: 10385 3: a 10386 10387/(\3)(\1)(a)/SI<JS> 10388Capturing subpattern count = 3 10389Max back reference = 3 10390Options: 10391No first char 10392Need char = 'a' 10393Subject length lower bound = 1 10394No set of starting bytes 10395 cat 10396 0: a 10397 1: 10398 2: 10399 3: a 10400 10401/(\3)(\1)(a)/SI 10402Capturing subpattern count = 3 10403Max back reference = 3 10404No options 10405No first char 10406Need char = 'a' 10407Subject length lower bound = 3 10408No set of starting bytes 10409 cat 10410No match 10411 10412/i(?(DEFINE)(?<s>a))/SI 10413Capturing subpattern count = 1 10414Named capturing subpatterns: 10415 s 1 10416No options 10417First char = 'i' 10418No need char 10419Subject length lower bound = 1 10420No set of starting bytes 10421 i 10422 0: i 10423 10424/()i(?(1)a)/SI 10425Capturing subpattern count = 1 10426No options 10427No first char 10428Need char = 'i' 10429Subject length lower bound = 1 10430Starting byte set: i 10431 ia 10432 0: ia 10433 1: 10434 10435/(?i)a(?-i)b|c/BZ 10436------------------------------------------------------------------ 10437 Bra 10438 /i a 10439 b 10440 Alt 10441 c 10442 Ket 10443 End 10444------------------------------------------------------------------ 10445 XabX 10446 0: ab 10447 XAbX 10448 0: Ab 10449 CcC 10450 0: c 10451 ** Failers 10452No match 10453 XABX 10454No match 10455 10456/(?i)a(?s)b|c/BZ 10457------------------------------------------------------------------ 10458 Bra 10459 /i ab 10460 Alt 10461 /i c 10462 Ket 10463 End 10464------------------------------------------------------------------ 10465 10466/(?i)a(?s-i)b|c/BZ 10467------------------------------------------------------------------ 10468 Bra 10469 /i a 10470 b 10471 Alt 10472 c 10473 Ket 10474 End 10475------------------------------------------------------------------ 10476 10477/^(ab(c\1)d|x){2}$/BZ 10478------------------------------------------------------------------ 10479 Bra 10480 ^ 10481 Once 10482 CBra 1 10483 ab 10484 CBra 2 10485 c 10486 \1 10487 Ket 10488 d 10489 Alt 10490 x 10491 Ket 10492 Ket 10493 Once 10494 CBra 1 10495 ab 10496 CBra 2 10497 c 10498 \1 10499 Ket 10500 d 10501 Alt 10502 x 10503 Ket 10504 Ket 10505 $ 10506 Ket 10507 End 10508------------------------------------------------------------------ 10509 xabcxd 10510 0: xabcxd 10511 1: abcxd 10512 2: cx 10513 10514/^(?&t)*+(?(DEFINE)(?<t>.))$/BZ 10515------------------------------------------------------------------ 10516 Bra 10517 ^ 10518 Braposzero 10519 SBraPos 10520 Recurse 10521 KetRpos 10522 Cond 10523 Cond def 10524 CBra 1 10525 Any 10526 Ket 10527 Ket 10528 $ 10529 Ket 10530 End 10531------------------------------------------------------------------ 10532 10533/^(?&t)*(?(DEFINE)(?<t>.))$/BZ 10534------------------------------------------------------------------ 10535 Bra 10536 ^ 10537 Brazero 10538 Once 10539 Recurse 10540 KetRmax 10541 Cond 10542 Cond def 10543 CBra 1 10544 Any 10545 Ket 10546 Ket 10547 $ 10548 Ket 10549 End 10550------------------------------------------------------------------ 10551 10552/ -- The first four of these are not in the Perl >= 5.10 test because Perl 10553 documents that the use of \K in assertions is "not well defined". The 10554 last is here because Perl gives the match as "b" rather than "ab". I 10555 believe this to be a Perl bug. --/ 10556 10557/(?=a\Kb)ab/ 10558 ab 10559 0: b 10560 10561/(?!a\Kb)ac/ 10562 ac 10563 0: ac 10564 10565/^abc(?<=b\Kc)d/ 10566 abcd 10567 0: cd 10568 10569/^abc(?<!b\Kq)d/ 10570 abcd 10571 0: abcd 10572 10573/(?>a\Kb)z|(ab)/ 10574 ab 10575 0: ab 10576 1: ab 10577 10578/----------------------/ 10579 10580/(?P<L1>(?P<L2>0|)|(?P>L2)(?P>L1))/ 10581Failed: recursive call could loop indefinitely at offset 31 10582 10583/abc(*MARK:)pqr/ 10584Failed: (*MARK) must have an argument at offset 10 10585 10586/abc(*:)pqr/ 10587Failed: (*MARK) must have an argument at offset 6 10588 10589/abc(*FAIL:123)xyz/ 10590Failed: an argument is not allowed for (*ACCEPT), (*FAIL), or (*COMMIT) at offset 13 10591 10592/--- This should, and does, fail. In Perl, it does not, which I think is a 10593 bug because replacing the B in the pattern by (B|D) does make it fail. ---/ 10594 10595/A(*COMMIT)B/+K 10596 ACABX 10597No match 10598 10599/--- These should be different, but in Perl 5.11 are not, which I think 10600 is a bug in Perl. ---/ 10601 10602/A(*THEN)B|A(*THEN)C/K 10603 AC 10604 0: AC 10605 10606/A(*PRUNE)B|A(*PRUNE)C/K 10607 AC 10608No match 10609 10610/--- This should fail; the SKIP advances by one, but when we get to AC, the 10611 PRUNE kills it. Perl behaves differently. ---/ 10612 10613/A(*PRUNE:A)A+(*SKIP:A)(B|Z) | AC/xK 10614 AAAC 10615No match, mark = A 10616 10617/--- Mark names can be duplicated. Perl doesn't give a mark for this one, 10618though PCRE does. ---/ 10619 10620/^A(*:A)B|^X(*:A)Y/K 10621 ** Failers 10622No match 10623 XAQQ 10624No match, mark = A 10625 10626/--- COMMIT at the start of a pattern should be the same as an anchor. Perl 10627optimizations defeat this. So does the PCRE optimization unless we disable it 10628with \Y. ---/ 10629 10630/(*COMMIT)ABC/ 10631 ABCDEFG 10632 0: ABC 10633 ** Failers 10634No match 10635 DEFGABC\Y 10636No match 10637 10638/^(ab (c+(*THEN)cd) | xyz)/x 10639 abcccd 10640No match 10641 10642/^(ab (c+(*PRUNE)cd) | xyz)/x 10643 abcccd 10644No match 10645 10646/^(ab (c+(*FAIL)cd) | xyz)/x 10647 abcccd 10648No match 10649 10650/--- Perl 5.11 gets some of these wrong ---/ 10651 10652/(?>.(*ACCEPT))*?5/ 10653 abcde 10654 0: a 10655 10656/(.(*ACCEPT))*?5/ 10657 abcde 10658 0: a 10659 1: a 10660 10661/(.(*ACCEPT))5/ 10662 abcde 10663 0: a 10664 1: a 10665 10666/(.(*ACCEPT))*5/ 10667 abcde 10668 0: a 10669 1: a 10670 10671/A\NB./BZ 10672------------------------------------------------------------------ 10673 Bra 10674 A 10675 Any 10676 B 10677 Any 10678 Ket 10679 End 10680------------------------------------------------------------------ 10681 ACBD 10682 0: ACBD 10683 *** Failers 10684No match 10685 A\nB 10686No match 10687 ACB\n 10688No match 10689 10690/A\NB./sBZ 10691------------------------------------------------------------------ 10692 Bra 10693 A 10694 Any 10695 B 10696 AllAny 10697 Ket 10698 End 10699------------------------------------------------------------------ 10700 ACBD 10701 0: ACBD 10702 ACB\n 10703 0: ACB\x0a 10704 *** Failers 10705No match 10706 A\nB 10707No match 10708 10709/A\NB/<crlf> 10710 A\nB 10711 0: A\x0aB 10712 A\rB 10713 0: A\x0dB 10714 ** Failers 10715No match 10716 A\r\nB 10717No match 10718 10719/\R+b/BZ 10720------------------------------------------------------------------ 10721 Bra 10722 \R++ 10723 b 10724 Ket 10725 End 10726------------------------------------------------------------------ 10727 10728/\R+\n/BZ 10729------------------------------------------------------------------ 10730 Bra 10731 \R+ 10732 \x0a 10733 Ket 10734 End 10735------------------------------------------------------------------ 10736 10737/\R+\d/BZ 10738------------------------------------------------------------------ 10739 Bra 10740 \R++ 10741 \d 10742 Ket 10743 End 10744------------------------------------------------------------------ 10745 10746/\d*\R/BZ 10747------------------------------------------------------------------ 10748 Bra 10749 \d*+ 10750 \R 10751 Ket 10752 End 10753------------------------------------------------------------------ 10754 10755/\s*\R/BZ 10756------------------------------------------------------------------ 10757 Bra 10758 \s* 10759 \R 10760 Ket 10761 End 10762------------------------------------------------------------------ 10763 \x20\x0a 10764 0: \x0a 10765 \x20\x0d 10766 0: \x0d 10767 \x20\x0d\x0a 10768 0: \x0d\x0a 10769 10770/\S*\R/BZ 10771------------------------------------------------------------------ 10772 Bra 10773 \S*+ 10774 \R 10775 Ket 10776 End 10777------------------------------------------------------------------ 10778 a\x0a 10779 0: a\x0a 10780 10781/X\h*\R/BZ 10782------------------------------------------------------------------ 10783 Bra 10784 X 10785 \h*+ 10786 \R 10787 Ket 10788 End 10789------------------------------------------------------------------ 10790 X\x20\x0a 10791 0: X \x0a 10792 10793/X\H*\R/BZ 10794------------------------------------------------------------------ 10795 Bra 10796 X 10797 \H* 10798 \R 10799 Ket 10800 End 10801------------------------------------------------------------------ 10802 X\x0d\x0a 10803 0: X\x0d\x0a 10804 10805/X\H+\R/BZ 10806------------------------------------------------------------------ 10807 Bra 10808 X 10809 \H+ 10810 \R 10811 Ket 10812 End 10813------------------------------------------------------------------ 10814 X\x0d\x0a 10815 0: X\x0d\x0a 10816 10817/X\H++\R/BZ 10818------------------------------------------------------------------ 10819 Bra 10820 X 10821 \H++ 10822 \R 10823 Ket 10824 End 10825------------------------------------------------------------------ 10826 X\x0d\x0a 10827No match 10828 10829/-- Perl treats this one differently, not failing the second string. I believe 10830 that is a bug in Perl. --/ 10831 10832/^((abc|abcx)(*THEN)y|abcd)/ 10833 abcd 10834 0: abcd 10835 1: abcd 10836 *** Failers 10837No match 10838 abcxy 10839No match 10840 10841/(?<=abc)def/ 10842 abc\P\P 10843Partial match: abc 10844 10845/abc$/ 10846 abc 10847 0: abc 10848 abc\P 10849 0: abc 10850 abc\P\P 10851Partial match: abc 10852 10853/abc$/m 10854 abc 10855 0: abc 10856 abc\n 10857 0: abc 10858 abc\P\P 10859Partial match: abc 10860 abc\n\P\P 10861 0: abc 10862 abc\P 10863 0: abc 10864 abc\n\P 10865 0: abc 10866 10867/abc\z/ 10868 abc 10869 0: abc 10870 abc\P 10871 0: abc 10872 abc\P\P 10873Partial match: abc 10874 10875/abc\Z/ 10876 abc 10877 0: abc 10878 abc\P 10879 0: abc 10880 abc\P\P 10881Partial match: abc 10882 10883/abc\b/ 10884 abc 10885 0: abc 10886 abc\P 10887 0: abc 10888 abc\P\P 10889Partial match: abc 10890 10891/abc\B/ 10892 abc 10893No match 10894 abc\P 10895Partial match: abc 10896 abc\P\P 10897Partial match: abc 10898 10899/.+/ 10900 abc\>0 10901 0: abc 10902 abc\>1 10903 0: bc 10904 abc\>2 10905 0: c 10906 abc\>3 10907No match 10908 abc\>4 10909Error -24 (bad offset value) 10910 abc\>-4 10911Error -24 (bad offset value) 10912 10913/^\cģ/ 10914Failed: \c must be followed by an ASCII character at offset 3 10915 10916/(?P<abn>(?P=abn)xxx)/BZ 10917------------------------------------------------------------------ 10918 Bra 10919 Once 10920 CBra 1 10921 \1 10922 xxx 10923 Ket 10924 Ket 10925 Ket 10926 End 10927------------------------------------------------------------------ 10928 10929/(a\1z)/BZ 10930------------------------------------------------------------------ 10931 Bra 10932 Once 10933 CBra 1 10934 a 10935 \1 10936 z 10937 Ket 10938 Ket 10939 Ket 10940 End 10941------------------------------------------------------------------ 10942 10943/(?P<abn>(?P=abn)(?<badstufxxx)/BZ 10944Failed: syntax error in subpattern name (missing terminator) at offset 29 10945 10946/(?P<abn>(?P=axn)xxx)/BZ 10947Failed: reference to non-existent subpattern at offset 15 10948 10949/(?P<abn>(?P=axn)xxx)(?<axn>yy)/BZ 10950------------------------------------------------------------------ 10951 Bra 10952 CBra 1 10953 \2 10954 xxx 10955 Ket 10956 CBra 2 10957 yy 10958 Ket 10959 Ket 10960 End 10961------------------------------------------------------------------ 10962 10963/-- These tests are here because Perl gets the first one wrong. --/ 10964 10965/(\R*)(.)/s 10966 \r\n 10967 0: \x0d 10968 1: 10969 2: \x0d 10970 \r\r\n\n\r 10971 0: \x0d\x0d\x0a\x0a\x0d 10972 1: \x0d\x0d\x0a\x0a 10973 2: \x0d 10974 \r\r\n\n\r\n 10975 0: \x0d\x0d\x0a\x0a\x0d 10976 1: \x0d\x0d\x0a\x0a 10977 2: \x0d 10978 10979/(\R)*(.)/s 10980 \r\n 10981 0: \x0d 10982 1: <unset> 10983 2: \x0d 10984 \r\r\n\n\r 10985 0: \x0d\x0d\x0a\x0a\x0d 10986 1: \x0a 10987 2: \x0d 10988 \r\r\n\n\r\n 10989 0: \x0d\x0d\x0a\x0a\x0d 10990 1: \x0a 10991 2: \x0d 10992 10993/((?>\r\n|\n|\x0b|\f|\r|\x85)*)(.)/s 10994 \r\n 10995 0: \x0d 10996 1: 10997 2: \x0d 10998 \r\r\n\n\r 10999 0: \x0d\x0d\x0a\x0a\x0d 11000 1: \x0d\x0d\x0a\x0a 11001 2: \x0d 11002 \r\r\n\n\r\n 11003 0: \x0d\x0d\x0a\x0a\x0d 11004 1: \x0d\x0d\x0a\x0a 11005 2: \x0d 11006 11007/-- --/ 11008 11009/^abc$/BZ 11010------------------------------------------------------------------ 11011 Bra 11012 ^ 11013 abc 11014 $ 11015 Ket 11016 End 11017------------------------------------------------------------------ 11018 11019/^abc$/BZm 11020------------------------------------------------------------------ 11021 Bra 11022 /m ^ 11023 abc 11024 /m $ 11025 Ket 11026 End 11027------------------------------------------------------------------ 11028 11029/^(a)*+(\w)/S 11030 aaaaX 11031 0: aaaaX 11032 1: a 11033 2: X 11034 ** Failers 11035No match 11036 aaaa 11037No match 11038 11039/^(?:a)*+(\w)/S 11040 aaaaX 11041 0: aaaaX 11042 1: X 11043 ** Failers 11044No match 11045 aaaa 11046No match 11047 11048/(a)++1234/SDZ 11049------------------------------------------------------------------ 11050 Bra 11051 CBraPos 1 11052 a 11053 KetRpos 11054 1234 11055 Ket 11056 End 11057------------------------------------------------------------------ 11058Capturing subpattern count = 1 11059No options 11060First char = 'a' 11061Need char = '4' 11062Subject length lower bound = 5 11063No set of starting bytes 11064 11065/([abc])++1234/SI 11066Capturing subpattern count = 1 11067No options 11068No first char 11069Need char = '4' 11070Subject length lower bound = 5 11071Starting byte set: a b c 11072 11073/(?<=(abc)+)X/ 11074Failed: lookbehind assertion is not fixed length at offset 10 11075 11076/(^ab)/I 11077Capturing subpattern count = 1 11078Options: anchored 11079No first char 11080No need char 11081 11082/(^ab)++/I 11083Capturing subpattern count = 1 11084Options: anchored 11085No first char 11086No need char 11087 11088/(^ab|^)+/I 11089Capturing subpattern count = 1 11090Options: anchored 11091No first char 11092No need char 11093 11094/(^ab|^)++/I 11095Capturing subpattern count = 1 11096Options: anchored 11097No first char 11098No need char 11099 11100/(?:^ab)/I 11101Capturing subpattern count = 0 11102Options: anchored 11103No first char 11104No need char 11105 11106/(?:^ab)++/I 11107Capturing subpattern count = 0 11108Options: anchored 11109No first char 11110No need char 11111 11112/(?:^ab|^)+/I 11113Capturing subpattern count = 0 11114Options: anchored 11115No first char 11116No need char 11117 11118/(?:^ab|^)++/I 11119Capturing subpattern count = 0 11120Options: anchored 11121No first char 11122No need char 11123 11124/(.*ab)/I 11125Capturing subpattern count = 1 11126No options 11127First char at start or follows newline 11128Need char = 'b' 11129 11130/(.*ab)++/I 11131Capturing subpattern count = 1 11132No options 11133First char at start or follows newline 11134Need char = 'b' 11135 11136/(.*ab|.*)+/I 11137Capturing subpattern count = 1 11138No options 11139First char at start or follows newline 11140No need char 11141 11142/(.*ab|.*)++/I 11143Capturing subpattern count = 1 11144No options 11145First char at start or follows newline 11146No need char 11147 11148/(?:.*ab)/I 11149Capturing subpattern count = 0 11150No options 11151First char at start or follows newline 11152Need char = 'b' 11153 11154/(?:.*ab)++/I 11155Capturing subpattern count = 0 11156No options 11157First char at start or follows newline 11158Need char = 'b' 11159 11160/(?:.*ab|.*)+/I 11161Capturing subpattern count = 0 11162No options 11163First char at start or follows newline 11164No need char 11165 11166/(?:.*ab|.*)++/I 11167Capturing subpattern count = 0 11168No options 11169First char at start or follows newline 11170No need char 11171 11172/(?=a)[bcd]/I 11173Capturing subpattern count = 0 11174No options 11175First char = 'a' 11176No need char 11177 11178/((?=a))[bcd]/I 11179Capturing subpattern count = 1 11180No options 11181First char = 'a' 11182No need char 11183 11184/((?=a))+[bcd]/I 11185Capturing subpattern count = 1 11186No options 11187First char = 'a' 11188No need char 11189 11190/((?=a))++[bcd]/I 11191Capturing subpattern count = 1 11192No options 11193First char = 'a' 11194No need char 11195 11196/(?=a+)[bcd]/iI 11197Capturing subpattern count = 0 11198Options: caseless 11199First char = 'a' (caseless) 11200No need char 11201 11202/(?=a+?)[bcd]/iI 11203Capturing subpattern count = 0 11204Options: caseless 11205First char = 'a' (caseless) 11206No need char 11207 11208/(?=a++)[bcd]/iI 11209Capturing subpattern count = 0 11210Options: caseless 11211First char = 'a' (caseless) 11212No need char 11213 11214/(?=a{3})[bcd]/iI 11215Capturing subpattern count = 0 11216Options: caseless 11217First char = 'a' (caseless) 11218Need char = 'a' (caseless) 11219 11220/(abc)\1+/S 11221 11222/-- Perl doesn't get these right IMO (the 3rd is PCRE-specific) --/ 11223 11224/(?1)(?:(b(*ACCEPT))){0}/ 11225 b 11226 0: b 11227 11228/(?1)(?:(b(*ACCEPT))){0}c/ 11229 bc 11230 0: bc 11231 ** Failers 11232No match 11233 b 11234No match 11235 11236/(?1)(?:((*ACCEPT))){0}c/ 11237 c 11238 0: c 11239 c\N 11240 0: c 11241 11242/^.*?(?(?=a)a|b(*THEN)c)/ 11243 ba 11244No match 11245 11246/^.*?(?(?=a)a|bc)/ 11247 ba 11248 0: ba 11249 11250/^.*?(?(?=a)a(*THEN)b|c)/ 11251 ac 11252No match 11253 11254/^.*?(?(?=a)a(*THEN)b)c/ 11255 ac 11256No match 11257 11258/^.*?(a(*THEN)b)c/ 11259 aabc 11260No match 11261 11262/^.*? (?1) c (?(DEFINE)(a(*THEN)b))/x 11263 aabc 11264 0: aabc 11265 11266/^.*?(a(*THEN)b|z)c/ 11267 aabc 11268 0: aabc 11269 1: ab 11270 11271/^.*?(z|a(*THEN)b)c/ 11272 aabc 11273 0: aabc 11274 1: ab 11275 11276/-- --/ 11277 11278/-- These studied versions are here because they are not Perl-compatible; the 11279 studying means the mark is not seen. --/ 11280 11281/(*MARK:A)(*SKIP:B)(C|X)/KS 11282 C 11283 0: C 11284 1: C 11285MK: A 11286 D 11287No match, mark = A 11288 11289/(*:A)A+(*SKIP:A)(B|Z)/KS 11290 AAAC 11291No match, mark = A 11292 11293/-- --/ 11294 11295"(?=a*(*ACCEPT)b)c" 11296 c 11297 0: c 11298 c\N 11299 0: c 11300 11301/(?1)c(?(DEFINE)((*ACCEPT)b))/ 11302 c 11303 0: c 11304 c\N 11305 0: c 11306 11307/(?>(*ACCEPT)b)c/ 11308 c 11309 0: 11310 c\N 11311No match 11312 11313/(?:(?>(a)))+a%/++ 11314 %aa% 11315 0: aa% 11316 0+ 11317 1: a 11318 1+ a% 11319 11320/(a)b|ac/++SS 11321 ac\O3 11322Matched, but too many substrings 11323 0: ac 11324 0+ 11325 11326/(a)(b)x|abc/++ 11327 abc\O6 11328 0: abc 11329 0+ 11330 11331/(a)bc|(a)(b)\2/ 11332 \O3abc 11333Matched, but too many substrings 11334 0: abc 11335 \O4abc 11336Matched, but too many substrings 11337 0: abc 11338 11339/(?(DEFINE)(a(?2)|b)(b(?1)|a))(?:(?1)|(?2))/SI 11340Capturing subpattern count = 2 11341No options 11342No first char 11343No need char 11344Subject length lower bound = 1 11345No set of starting bytes 11346 11347/(a(?2)|b)(b(?1)|a)(?:(?1)|(?2))/SI 11348Capturing subpattern count = 2 11349No options 11350No first char 11351No need char 11352Subject length lower bound = 3 11353Starting byte set: a b 11354 11355/(a(?2)|b)(b(?1)|a)(?1)(?2)/SI 11356Capturing subpattern count = 2 11357No options 11358No first char 11359No need char 11360Subject length lower bound = 4 11361Starting byte set: a b 11362 11363/(abc)(?1)/SI 11364Capturing subpattern count = 1 11365No options 11366First char = 'a' 11367Need char = 'c' 11368Subject length lower bound = 6 11369No set of starting bytes 11370 11371/^(?>a)++/ 11372 aa\M 11373Minimum match() limit = 5 11374Minimum match() recursion limit = 2 11375 0: aa 11376 aaaaaaaaa\M 11377Minimum match() limit = 12 11378Minimum match() recursion limit = 2 11379 0: aaaaaaaaa 11380 11381/(a)(?1)++/ 11382 aa\M 11383Minimum match() limit = 7 11384Minimum match() recursion limit = 4 11385 0: aa 11386 1: a 11387 aaaaaaaaa\M 11388Minimum match() limit = 21 11389Minimum match() recursion limit = 4 11390 0: aaaaaaaaa 11391 1: a 11392 11393/(?:(foo)|(bar)|(baz))X/SS= 11394 bazfooX 11395 0: fooX 11396 1: foo 11397 2: <unset> 11398 3: <unset> 11399 foobazbarX 11400 0: barX 11401 1: <unset> 11402 2: bar 11403 3: <unset> 11404 barfooX 11405 0: fooX 11406 1: foo 11407 2: <unset> 11408 3: <unset> 11409 bazX 11410 0: bazX 11411 1: <unset> 11412 2: <unset> 11413 3: baz 11414 foobarbazX 11415 0: bazX 11416 1: <unset> 11417 2: <unset> 11418 3: baz 11419 bazfooX\O0 11420Matched, but too many substrings 11421 bazfooX\O2 11422Matched, but too many substrings 11423 0: fooX 11424 bazfooX\O4 11425Matched, but too many substrings 11426 0: fooX 11427 1: <unset> 11428 bazfooX\O6 11429Matched, but too many substrings 11430 0: fooX 11431 1: foo 11432 2: <unset> 11433 bazfooX\O8 11434Matched, but too many substrings 11435 0: fooX 11436 1: foo 11437 2: <unset> 11438 3: <unset> 11439 bazfooX\O10 11440 0: fooX 11441 1: foo 11442 2: <unset> 11443 3: <unset> 11444 11445/(?=abc){3}abc/BZ 11446------------------------------------------------------------------ 11447 Bra 11448 Assert 11449 abc 11450 Ket 11451 abc 11452 Ket 11453 End 11454------------------------------------------------------------------ 11455 11456/(?=abc)+abc/BZ 11457------------------------------------------------------------------ 11458 Bra 11459 Assert 11460 abc 11461 Ket 11462 abc 11463 Ket 11464 End 11465------------------------------------------------------------------ 11466 11467/(?=abc)++abc/BZ 11468------------------------------------------------------------------ 11469 Bra 11470 Assert 11471 abc 11472 Ket 11473 abc 11474 Ket 11475 End 11476------------------------------------------------------------------ 11477 11478/(?=abc){0}xyz/BZ 11479------------------------------------------------------------------ 11480 Bra 11481 Skip zero 11482 Assert 11483 abc 11484 Ket 11485 xyz 11486 Ket 11487 End 11488------------------------------------------------------------------ 11489 11490/(?=(a))?./BZ 11491------------------------------------------------------------------ 11492 Bra 11493 Brazero 11494 Assert 11495 CBra 1 11496 a 11497 Ket 11498 Ket 11499 Any 11500 Ket 11501 End 11502------------------------------------------------------------------ 11503 11504/(?=(a))??./BZ 11505------------------------------------------------------------------ 11506 Bra 11507 Braminzero 11508 Assert 11509 CBra 1 11510 a 11511 Ket 11512 Ket 11513 Any 11514 Ket 11515 End 11516------------------------------------------------------------------ 11517 11518/^(?=(a)){0}b(?1)/BZ 11519------------------------------------------------------------------ 11520 Bra 11521 ^ 11522 Skip zero 11523 Assert 11524 CBra 1 11525 a 11526 Ket 11527 Ket 11528 b 11529 Recurse 11530 Ket 11531 End 11532------------------------------------------------------------------ 11533 11534/(?(DEFINE)(a))?b(?1)/BZ 11535------------------------------------------------------------------ 11536 Bra 11537 Cond 11538 Cond def 11539 CBra 1 11540 a 11541 Ket 11542 Ket 11543 b 11544 Recurse 11545 Ket 11546 End 11547------------------------------------------------------------------ 11548 11549/^(?=(?1))?[az]([abc])d/BZ 11550------------------------------------------------------------------ 11551 Bra 11552 ^ 11553 Brazero 11554 Assert 11555 Recurse 11556 Ket 11557 [az] 11558 CBra 1 11559 [a-c] 11560 Ket 11561 d 11562 Ket 11563 End 11564------------------------------------------------------------------ 11565 11566/^(?!a){0}\w+/BZ 11567------------------------------------------------------------------ 11568 Bra 11569 ^ 11570 Skip zero 11571 Assert not 11572 a 11573 Ket 11574 \w+ 11575 Ket 11576 End 11577------------------------------------------------------------------ 11578 11579/(?<=(abc))?xyz/BZ 11580------------------------------------------------------------------ 11581 Bra 11582 Brazero 11583 AssertB 11584 Reverse 11585 CBra 1 11586 abc 11587 Ket 11588 Ket 11589 xyz 11590 Ket 11591 End 11592------------------------------------------------------------------ 11593 11594/[:a[:abc]b:]/BZ 11595------------------------------------------------------------------ 11596 Bra 11597 [:[a-c] 11598 b:] 11599 Ket 11600 End 11601------------------------------------------------------------------ 11602 11603/((?2))((?1))/SS 11604 abc 11605Error -26 (nested recursion at the same subject position) 11606 11607/((?(R2)a+|(?1)b))/SS 11608 aaaabcde 11609Error -26 (nested recursion at the same subject position) 11610 11611/(?(R)a*(?1)|((?R))b)/SS 11612 aaaabcde 11613Error -26 (nested recursion at the same subject position) 11614 11615/(a+|(?R)b)/ 11616Failed: recursive call could loop indefinitely at offset 7 11617 11618/^(a(*:A)(d|e(*:B))z|aeq)/C 11619 adz 11620--->adz 11621 +0 ^ ^ 11622 +1 ^ (a(*:A)(d|e(*:B))z|aeq) 11623 +2 ^ a 11624 +3 ^^ (*:A) 11625 +8 ^^ (d|e(*:B)) 11626Latest Mark: A 11627 +9 ^^ d 11628+10 ^ ^ | 11629+18 ^ ^ z 11630+19 ^ ^ | 11631+24 ^ ^ 11632 0: adz 11633 1: adz 11634 2: d 11635 aez 11636--->aez 11637 +0 ^ ^ 11638 +1 ^ (a(*:A)(d|e(*:B))z|aeq) 11639 +2 ^ a 11640 +3 ^^ (*:A) 11641 +8 ^^ (d|e(*:B)) 11642Latest Mark: A 11643 +9 ^^ d 11644+11 ^^ e 11645+12 ^ ^ (*:B) 11646+17 ^ ^ ) 11647Latest Mark: B 11648+18 ^ ^ z 11649+19 ^ ^ | 11650+24 ^ ^ 11651 0: aez 11652 1: aez 11653 2: e 11654 aeqwerty 11655--->aeqwerty 11656 +0 ^ ^ 11657 +1 ^ (a(*:A)(d|e(*:B))z|aeq) 11658 +2 ^ a 11659 +3 ^^ (*:A) 11660 +8 ^^ (d|e(*:B)) 11661Latest Mark: A 11662 +9 ^^ d 11663+11 ^^ e 11664+12 ^ ^ (*:B) 11665+17 ^ ^ ) 11666Latest Mark: B 11667+18 ^ ^ z 11668+20 ^ a 11669+21 ^^ e 11670+22 ^ ^ q 11671+23 ^ ^ ) 11672+24 ^ ^ 11673 0: aeq 11674 1: aeq 11675 11676/.(*F)/ 11677 \P\Pabc 11678No match 11679 11680/\btype\b\W*?\btext\b\W*?\bjavascript\b/IS 11681Capturing subpattern count = 0 11682No options 11683First char = 't' 11684Need char = 't' 11685Max lookbehind = 1 11686Subject length lower bound = 18 11687No set of starting bytes 11688 11689/\btype\b\W*?\btext\b\W*?\bjavascript\b|\burl\b\W*?\bshell:|<input\b.*?\btype\b\W*?\bimage\b|\bonkeyup\b\W*?\=/IS 11690Capturing subpattern count = 0 11691No options 11692No first char 11693No need char 11694Max lookbehind = 1 11695Subject length lower bound = 8 11696Starting byte set: < o t u 11697 11698/a(*SKIP)c|b(*ACCEPT)|/+SI 11699Capturing subpattern count = 0 11700No options 11701No first char 11702No need char 11703Study returned NULL 11704 a 11705 0: 11706 0+ 11707 11708/a(*SKIP)c|b(*ACCEPT)cd(*ACCEPT)|x/SI 11709Capturing subpattern count = 0 11710No options 11711No first char 11712No need char 11713Subject length lower bound = -1 11714Starting byte set: a b x 11715 ax 11716 0: x 11717 11718'a*(*ACCEPT)b'+ 11719 \N\N 11720No match 11721 abc\N\N 11722 0: a 11723 0+ bc 11724 bbb\N\N 11725 0: 11726 0+ bb 11727 11728/(*ACCEPT)a/+I 11729Capturing subpattern count = 0 11730No options 11731No first char 11732No need char 11733 bax 11734 0: 11735 0+ bax 11736 11737/z(*ACCEPT)a/+I 11738Capturing subpattern count = 0 11739No options 11740First char = 'z' 11741No need char 11742 baxzbx 11743 0: z 11744 0+ bx 11745 11746/a(?:.)*?a/ims 11747 \Mabbbbbbbbbbbbbbbbbbbbba 11748Minimum match() limit = 65 11749Minimum match() recursion limit = 2 11750 0: abbbbbbbbbbbbbbbbbbbbba 11751 11752/a(?:.(*THEN))*?a/ims 11753 \Mabbbbbbbbbbbbbbbbbbbbba 11754Minimum match() limit = 86 11755Minimum match() recursion limit = 45 11756 0: abbbbbbbbbbbbbbbbbbbbba 11757 11758/a(?:.(*THEN:ABC))*?a/ims 11759 \Mabbbbbbbbbbbbbbbbbbbbba 11760Minimum match() limit = 86 11761Minimum match() recursion limit = 45 11762 0: abbbbbbbbbbbbbbbbbbbbba 11763 11764/-- These tests are in agreement with development Perl 5.015, which has fixed 11765 some things, but they don't all work with 5.012, so they aren't in the 11766 Perl-compatible tests. Those after the first come from Perl's own test 11767 files. --/ 11768 11769/^((yes|no)(*THEN)(*F))?/ 11770 yes 11771No match 11772 11773/(A (.*) C? (*THEN) | A D) (*FAIL)/x 11774AbcdCBefgBhiBqz 11775No match 11776 11777/(A (.*) C? (*THEN) | A D) z/x 11778AbcdCBefgBhiBqz 11779No match 11780 11781/(A (.*) C? (*THEN) | A D) \s* (*FAIL)/x 11782AbcdCBefgBhiBqz 11783No match 11784 11785/(A (.*) C? (*THEN) | A D) \s* z/x 11786AbcdCBefgBhiBqz 11787No match 11788 11789/(A (.*) (?:C|) (*THEN) | A D) (*FAIL)/x 11790AbcdCBefgBhiBqz 11791No match 11792 11793/(A (.*) (?:C|) (*THEN) | A D) z/x 11794AbcdCBefgBhiBqz 11795No match 11796 11797/(A (.*) C{0,6} (*THEN) | A D) (*FAIL)/x 11798AbcdCBefgBhiBqz 11799No match 11800 11801/(A (.*) C{0,6} (*THEN) | A D) z/x 11802AbcdCBefgBhiBqz 11803No match 11804 11805/(A (.*) (CE){0,6} (*THEN) | A D) (*FAIL)/x 11806AbcdCEBefgBhiBqz 11807No match 11808 11809/(A (.*) (CE){0,6} (*THEN) | A D) z/x 11810AbcdCEBefgBhiBqz 11811No match 11812 11813/(A (.*) (CE*){0,6} (*THEN) | A D) (*FAIL)/x 11814AbcdCBefgBhiBqz 11815No match 11816 11817/(A (.*) (CE*){0,6} (*THEN) | A D) z/x 11818AbcdCBefgBhiBqz 11819No match 11820 11821/-----------------------------------------------/ 11822 11823/^(?>a+)(?>(z+))\w/BZ 11824------------------------------------------------------------------ 11825 Bra 11826 ^ 11827 Once_NC 11828 a+ 11829 Ket 11830 Once 11831 CBra 1 11832 z+ 11833 Ket 11834 Ket 11835 \w 11836 Ket 11837 End 11838------------------------------------------------------------------ 11839 aaaazzzzb 11840 0: aaaazzzzb 11841 1: zzzz 11842 ** Failers 11843No match 11844 aazz 11845No match 11846 11847/(.)(\1|a(?2))/ 11848 bab 11849 0: bab 11850 1: b 11851 2: ab 11852 11853/\1|(.)(?R)\1/ 11854 cbbbc 11855 0: cbbbc 11856 1: c 11857 11858/(.)((?(1)c|a)|a(?2))/ 11859 baa 11860No match 11861 11862/(?P<abn>(?P=abn)xxx)/BZ 11863------------------------------------------------------------------ 11864 Bra 11865 Once 11866 CBra 1 11867 \1 11868 xxx 11869 Ket 11870 Ket 11871 Ket 11872 End 11873------------------------------------------------------------------ 11874 11875/(a\1z)/BZ 11876------------------------------------------------------------------ 11877 Bra 11878 Once 11879 CBra 1 11880 a 11881 \1 11882 z 11883 Ket 11884 Ket 11885 Ket 11886 End 11887------------------------------------------------------------------ 11888 11889/^(?>a+)(?>b+)(?>c+)(?>d+)(?>e+)/ 11890 \Maabbccddee 11891Minimum match() limit = 12 11892Minimum match() recursion limit = 3 11893 0: aabbccddee 11894 11895/^(?>(a+))(?>(b+))(?>(c+))(?>(d+))(?>(e+))/ 11896 \Maabbccddee 11897Minimum match() limit = 22 11898Minimum match() recursion limit = 21 11899 0: aabbccddee 11900 1: aa 11901 2: bb 11902 3: cc 11903 4: dd 11904 5: ee 11905 11906/^(?>(a+))(?>b+)(?>(c+))(?>d+)(?>(e+))/ 11907 \Maabbccddee 11908Minimum match() limit = 18 11909Minimum match() recursion limit = 13 11910 0: aabbccddee 11911 1: aa 11912 2: cc 11913 3: ee 11914 11915/^a\x41z/<JS> 11916 aAz 11917 0: aAz 11918 *** Failers 11919No match 11920 ax41z 11921No match 11922 11923/^a[m\x41]z/<JS> 11924 aAz 11925 0: aAz 11926 11927/^a\x1z/<JS> 11928 ax1z 11929 0: ax1z 11930 11931/^a\u0041z/<JS> 11932 aAz 11933 0: aAz 11934 *** Failers 11935No match 11936 au0041z 11937No match 11938 11939/^a[m\u0041]z/<JS> 11940 aAz 11941 0: aAz 11942 11943/^a\u041z/<JS> 11944 au041z 11945 0: au041z 11946 *** Failers 11947No match 11948 aAz 11949No match 11950 11951/^a\U0041z/<JS> 11952 aU0041z 11953 0: aU0041z 11954 *** Failers 11955No match 11956 aAz 11957No match 11958 11959/(?(?=c)c|d)++Y/BZ 11960------------------------------------------------------------------ 11961 Bra 11962 BraPos 11963 Cond 11964 Assert 11965 c 11966 Ket 11967 c 11968 Alt 11969 d 11970 Ket 11971 KetRpos 11972 Y 11973 Ket 11974 End 11975------------------------------------------------------------------ 11976 11977/(?(?=c)c|d)*+Y/BZ 11978------------------------------------------------------------------ 11979 Bra 11980 Braposzero 11981 BraPos 11982 Cond 11983 Assert 11984 c 11985 Ket 11986 c 11987 Alt 11988 d 11989 Ket 11990 KetRpos 11991 Y 11992 Ket 11993 End 11994------------------------------------------------------------------ 11995 11996/a[\NB]c/ 11997Failed: \N is not supported in a class at offset 3 11998 11999/a[B-\Nc]/ 12000Failed: \N is not supported in a class at offset 5 12001 12002/(a)(?2){0,1999}?(b)/ 12003 12004/(a)(?(DEFINE)(b))(?2){0,1999}?(?2)/ 12005 12006/--- This test, with something more complicated than individual letters, causes 12007different behaviour in Perl. Perhaps it disables some optimization; no tag is 12008passed back for the failures, whereas in PCRE there is a tag. ---/ 12009 12010/(A|P)(*:A)(B|P) | (X|P)(X|P)(*:B)(Y|P)/xK 12011 AABC 12012 0: AB 12013 1: A 12014 2: B 12015MK: A 12016 XXYZ 12017 0: XXY 12018 1: <unset> 12019 2: <unset> 12020 3: X 12021 4: X 12022 5: Y 12023MK: B 12024 ** Failers 12025No match 12026 XAQQ 12027No match, mark = A 12028 XAQQXZZ 12029No match, mark = A 12030 AXQQQ 12031No match, mark = A 12032 AXXQQQ 12033No match, mark = B 12034 12035/-- Perl doesn't give marks for these, though it does if the alternatives are 12036replaced by single letters. --/ 12037 12038/(b|q)(*:m)f|a(*:n)w/K 12039 aw 12040 0: aw 12041MK: n 12042 ** Failers 12043No match, mark = n 12044 abc 12045No match, mark = m 12046 12047/(q|b)(*:m)f|a(*:n)w/K 12048 aw 12049 0: aw 12050MK: n 12051 ** Failers 12052No match, mark = n 12053 abc 12054No match, mark = m 12055 12056/-- After a partial match, the behaviour is as for a failure. --/ 12057 12058/^a(*:X)bcde/K 12059 abc\P 12060Partial match, mark=X: abc 12061 12062/-- These are here because Perl doesn't return a mark, except for the first --/ 12063 12064/(?=(*:x))(q|)/K+ 12065 abc 12066 0: 12067 0+ abc 12068 1: 12069MK: x 12070 12071/(?=(*:x))((*:y)q|)/K+ 12072 abc 12073 0: 12074 0+ abc 12075 1: 12076MK: x 12077 12078/(?=(*:x))(?:(*:y)q|)/K+ 12079 abc 12080 0: 12081 0+ abc 12082MK: x 12083 12084/(?=(*:x))(?>(*:y)q|)/K+ 12085 abc 12086 0: 12087 0+ abc 12088MK: x 12089 12090/(?=a(*:x))(?!a(*:y)c)/K+ 12091 ab 12092 0: 12093 0+ ab 12094MK: x 12095 12096/(?=a(*:x))(?=a(*:y)c|)/K+ 12097 ab 12098 0: 12099 0+ ab 12100MK: x 12101 12102/(..)\1/ 12103 ab\P 12104Partial match: ab 12105 aba\P 12106Partial match: aba 12107 abab\P 12108 0: abab 12109 1: ab 12110 12111/(..)\1/i 12112 ab\P 12113Partial match: ab 12114 abA\P 12115Partial match: abA 12116 aBAb\P 12117 0: aBAb 12118 1: aB 12119 12120/(..)\1{2,}/ 12121 ab\P 12122Partial match: ab 12123 aba\P 12124Partial match: aba 12125 abab\P 12126Partial match: abab 12127 ababa\P 12128Partial match: ababa 12129 ababab\P 12130 0: ababab 12131 1: ab 12132 ababab\P\P 12133Partial match: ababab 12134 abababa\P 12135 0: ababab 12136 1: ab 12137 abababa\P\P 12138Partial match: abababa 12139 12140/(..)\1{2,}/i 12141 ab\P 12142Partial match: ab 12143 aBa\P 12144Partial match: aBa 12145 aBAb\P 12146Partial match: aBAb 12147 AbaBA\P 12148Partial match: AbaBA 12149 abABAb\P 12150 0: abABAb 12151 1: ab 12152 aBAbaB\P\P 12153Partial match: aBAbaB 12154 abABabA\P 12155 0: abABab 12156 1: ab 12157 abaBABa\P\P 12158Partial match: abaBABa 12159 12160/(..)\1{2,}?x/i 12161 ab\P 12162Partial match: ab 12163 abA\P 12164Partial match: abA 12165 aBAb\P 12166Partial match: aBAb 12167 abaBA\P 12168Partial match: abaBA 12169 abAbaB\P 12170Partial match: abAbaB 12171 abaBabA\P 12172Partial match: abaBabA 12173 abAbABaBx\P 12174 0: abAbABaBx 12175 1: ab 12176 12177/^(..)\1/ 12178 aba\P 12179Partial match: aba 12180 12181/^(..)\1{2,3}x/ 12182 aba\P 12183Partial match: aba 12184 ababa\P 12185Partial match: ababa 12186 ababa\P\P 12187Partial match: ababa 12188 abababx 12189 0: abababx 12190 1: ab 12191 ababababx 12192 0: ababababx 12193 1: ab 12194 12195/^(..)\1{2,3}?x/ 12196 aba\P 12197Partial match: aba 12198 ababa\P 12199Partial match: ababa 12200 ababa\P\P 12201Partial match: ababa 12202 abababx 12203 0: abababx 12204 1: ab 12205 ababababx 12206 0: ababababx 12207 1: ab 12208 12209/^(..)(\1{2,3})ab/ 12210 abababab 12211 0: abababab 12212 1: ab 12213 2: abab 12214 12215/^\R/ 12216 \r\P 12217 0: \x0d 12218 \r\P\P 12219Partial match: \x0d 12220 12221/^\R{2,3}x/ 12222 \r\P 12223Partial match: \x0d 12224 \r\P\P 12225Partial match: \x0d 12226 \r\r\P 12227Partial match: \x0d\x0d 12228 \r\r\P\P 12229Partial match: \x0d\x0d 12230 \r\r\r\P 12231Partial match: \x0d\x0d\x0d 12232 \r\r\r\P\P 12233Partial match: \x0d\x0d\x0d 12234 \r\rx 12235 0: \x0d\x0dx 12236 \r\r\rx 12237 0: \x0d\x0d\x0dx 12238 12239/^\R{2,3}?x/ 12240 \r\P 12241Partial match: \x0d 12242 \r\P\P 12243Partial match: \x0d 12244 \r\r\P 12245Partial match: \x0d\x0d 12246 \r\r\P\P 12247Partial match: \x0d\x0d 12248 \r\r\r\P 12249Partial match: \x0d\x0d\x0d 12250 \r\r\r\P\P 12251Partial match: \x0d\x0d\x0d 12252 \r\rx 12253 0: \x0d\x0dx 12254 \r\r\rx 12255 0: \x0d\x0d\x0dx 12256 12257/^\R?x/ 12258 \r\P 12259Partial match: \x0d 12260 \r\P\P 12261Partial match: \x0d 12262 x 12263 0: x 12264 \rx 12265 0: \x0dx 12266 12267/^\R+x/ 12268 \r\P 12269Partial match: \x0d 12270 \r\P\P 12271Partial match: \x0d 12272 \r\n\P 12273Partial match: \x0d\x0a 12274 \r\n\P\P 12275Partial match: \x0d\x0a 12276 \rx 12277 0: \x0dx 12278 12279/^a$/<CRLF> 12280 a\r\P 12281Partial match: a\x0d 12282 a\r\P\P 12283Partial match: a\x0d 12284 12285/^a$/m<CRLF> 12286 a\r\P 12287Partial match: a\x0d 12288 a\r\P\P 12289Partial match: a\x0d 12290 12291/^(a$|a\r)/<CRLF> 12292 a\r\P 12293 0: a\x0d 12294 1: a\x0d 12295 a\r\P\P 12296Partial match: a\x0d 12297 12298/^(a$|a\r)/m<CRLF> 12299 a\r\P 12300 0: a\x0d 12301 1: a\x0d 12302 a\r\P\P 12303Partial match: a\x0d 12304 12305/./<CRLF> 12306 \r\P 12307 0: \x0d 12308 \r\P\P 12309Partial match: \x0d 12310 12311/.{2,3}/<CRLF> 12312 \r\P 12313Partial match: \x0d 12314 \r\P\P 12315Partial match: \x0d 12316 \r\r\P 12317 0: \x0d\x0d 12318 \r\r\P\P 12319Partial match: \x0d\x0d 12320 \r\r\r\P 12321 0: \x0d\x0d\x0d 12322 \r\r\r\P\P 12323Partial match: \x0d\x0d\x0d 12324 12325/.{2,3}?/<CRLF> 12326 \r\P 12327Partial match: \x0d 12328 \r\P\P 12329Partial match: \x0d 12330 \r\r\P 12331 0: \x0d\x0d 12332 \r\r\P\P 12333Partial match: \x0d\x0d 12334 \r\r\r\P 12335 0: \x0d\x0d 12336 \r\r\r\P\P 12337 0: \x0d\x0d 12338 12339/-- These two are here because Perl does not match: it seems to allow the 12340COMMIT to escape from the assertion. --/ 12341 12342/(?=a(*COMMIT)b|ac)ac|ac/ 12343 ac 12344 0: ac 12345 12346/(?=a(*COMMIT)b|(ac)) ac | (a)c/x 12347 ac 12348 0: ac 12349 1: <unset> 12350 2: a 12351 12352"AB(C(D))(E(F))?(?(?=\2)(?=\4))" 12353 ABCDGHI\O03 12354Matched, but too many substrings 12355 0: ABCD 12356 12357/-- This one is here because Perl does not confine the *COMMIT to the 12358assertion, and therefore fails the entire subroutine call. --/ 12359 12360/((?=a(*COMMIT)b)ab|ac){0}(?:(?1)|a(c))/ 12361 ac 12362 0: ac 12363 12364/-- These are all run as real matches in test 1; here we are just checking the 12365settings of the anchored and startline bits. --/ 12366 12367/(?>.*?a)(?<=ba)/I 12368Capturing subpattern count = 0 12369No options 12370No first char 12371Need char = 'a' 12372Max lookbehind = 2 12373 12374/(?:.*?a)(?<=ba)/I 12375Capturing subpattern count = 0 12376No options 12377First char at start or follows newline 12378Need char = 'a' 12379Max lookbehind = 2 12380 12381/.*?a(*PRUNE)b/I 12382Capturing subpattern count = 0 12383No options 12384No first char 12385Need char = 'b' 12386 12387/.*?a(*PRUNE)b/sI 12388Capturing subpattern count = 0 12389Options: dotall 12390No first char 12391Need char = 'b' 12392 12393/^a(*PRUNE)b/sI 12394Capturing subpattern count = 0 12395Options: anchored dotall 12396No first char 12397No need char 12398 12399/.*?a(*SKIP)b/I 12400Capturing subpattern count = 0 12401No options 12402No first char 12403Need char = 'b' 12404 12405/(?>.*?a)b/sI 12406Capturing subpattern count = 0 12407Options: dotall 12408No first char 12409Need char = 'b' 12410 12411/(?>.*?a)b/I 12412Capturing subpattern count = 0 12413No options 12414No first char 12415Need char = 'b' 12416 12417/(?>^a)b/sI 12418Capturing subpattern count = 0 12419Options: anchored dotall 12420No first char 12421No need char 12422 12423/(?>.*?)(?<=(abcd)|(wxyz))/I 12424Capturing subpattern count = 2 12425No options 12426No first char 12427No need char 12428Max lookbehind = 4 12429 12430/(?>.*)(?<=(abcd)|(wxyz))/I 12431Capturing subpattern count = 2 12432No options 12433No first char 12434No need char 12435Max lookbehind = 4 12436 12437"(?>.*)foo"I 12438Capturing subpattern count = 0 12439No options 12440No first char 12441Need char = 'o' 12442 12443"(?>.*?)foo"I 12444Capturing subpattern count = 0 12445No options 12446No first char 12447Need char = 'o' 12448 12449/(?>^abc)/mI 12450Capturing subpattern count = 0 12451Options: multiline 12452First char at start or follows newline 12453Need char = 'c' 12454 12455/(?>.*abc)/mI 12456Capturing subpattern count = 0 12457Options: multiline 12458No first char 12459Need char = 'c' 12460 12461/(?:.*abc)/mI 12462Capturing subpattern count = 0 12463Options: multiline 12464First char at start or follows newline 12465Need char = 'c' 12466 12467/-- Check PCRE_STUDY_EXTRA_NEEDED --/ 12468 12469/.?/S-I 12470Capturing subpattern count = 0 12471No options 12472No first char 12473No need char 12474Study returned NULL 12475 12476/.?/S!I 12477Capturing subpattern count = 0 12478No options 12479No first char 12480No need char 12481Subject length lower bound = -1 12482No set of starting bytes 12483 12484/-- End of testinput2 --/ 12485
