1 /-- This set of tests is for features that are compatible with all versions of 2 Perl >= 5.10, in non-UTF-8 mode. It should run clean for the 8-bit, 16-bit, 3 and 32-bit PCRE libraries. --/ 4 5 < forbid 89?=ABCDEFfGILMNPTUWXZ< 6 7 /the quick brown fox/ 8 the quick brown fox 9 The quick brown FOX 10 What do you know about the quick brown fox? 11 What do you know about THE QUICK BROWN FOX? 12 13 /The quick brown fox/i 14 the quick brown fox 15 The quick brown FOX 16 What do you know about the quick brown fox? 17 What do you know about THE QUICK BROWN FOX? 18 19 /abcd\t\n\r\f\a\e\071\x3b\$\\\?caxyz/ 20 abcd\t\n\r\f\a\e9;\$\\?caxyz 21 22 /a*abc?xyz+pqr{3}ab{2,}xy{4,5}pq{0,6}AB{0,}zz/ 23 abxyzpqrrrabbxyyyypqAzz 24 abxyzpqrrrabbxyyyypqAzz 25 aabxyzpqrrrabbxyyyypqAzz 26 aaabxyzpqrrrabbxyyyypqAzz 27 aaaabxyzpqrrrabbxyyyypqAzz 28 abcxyzpqrrrabbxyyyypqAzz 29 aabcxyzpqrrrabbxyyyypqAzz 30 aaabcxyzpqrrrabbxyyyypAzz 31 aaabcxyzpqrrrabbxyyyypqAzz 32 aaabcxyzpqrrrabbxyyyypqqAzz 33 aaabcxyzpqrrrabbxyyyypqqqAzz 34 aaabcxyzpqrrrabbxyyyypqqqqAzz 35 aaabcxyzpqrrrabbxyyyypqqqqqAzz 36 aaabcxyzpqrrrabbxyyyypqqqqqqAzz 37 aaaabcxyzpqrrrabbxyyyypqAzz 38 abxyzzpqrrrabbxyyyypqAzz 39 aabxyzzzpqrrrabbxyyyypqAzz 40 aaabxyzzzzpqrrrabbxyyyypqAzz 41 aaaabxyzzzzpqrrrabbxyyyypqAzz 42 abcxyzzpqrrrabbxyyyypqAzz 43 aabcxyzzzpqrrrabbxyyyypqAzz 44 aaabcxyzzzzpqrrrabbxyyyypqAzz 45 aaaabcxyzzzzpqrrrabbxyyyypqAzz 46 aaaabcxyzzzzpqrrrabbbxyyyypqAzz 47 aaaabcxyzzzzpqrrrabbbxyyyyypqAzz 48 aaabcxyzpqrrrabbxyyyypABzz 49 aaabcxyzpqrrrabbxyyyypABBzz 50 >>>aaabxyzpqrrrabbxyyyypqAzz 51 >aaaabxyzpqrrrabbxyyyypqAzz 52 >>>>abcxyzpqrrrabbxyyyypqAzz 53 *** Failers 54 abxyzpqrrabbxyyyypqAzz 55 abxyzpqrrrrabbxyyyypqAzz 56 abxyzpqrrrabxyyyypqAzz 57 aaaabcxyzzzzpqrrrabbbxyyyyyypqAzz 58 aaaabcxyzzzzpqrrrabbbxyyypqAzz 59 aaabcxyzpqrrrabbxyyyypqqqqqqqAzz 60 61 /^(abc){1,2}zz/ 62 abczz 63 abcabczz 64 *** Failers 65 zz 66 abcabcabczz 67 >>abczz 68 69 /^(b+?|a){1,2}?c/ 70 bc 71 bbc 72 bbbc 73 bac 74 bbac 75 aac 76 abbbbbbbbbbbc 77 bbbbbbbbbbbac 78 *** Failers 79 aaac 80 abbbbbbbbbbbac 81 82 /^(b+|a){1,2}c/ 83 bc 84 bbc 85 bbbc 86 bac 87 bbac 88 aac 89 abbbbbbbbbbbc 90 bbbbbbbbbbbac 91 *** Failers 92 aaac 93 abbbbbbbbbbbac 94 95 /^(b+|a){1,2}?bc/ 96 bbc 97 98 /^(b*|ba){1,2}?bc/ 99 babc 100 bbabc 101 bababc 102 *** Failers 103 bababbc 104 babababc 105 106 /^(ba|b*){1,2}?bc/ 107 babc 108 bbabc 109 bababc 110 *** Failers 111 bababbc 112 babababc 113 114 /^\ca\cA\c[;\c:/ 115 \x01\x01\e;z 116 117 /^[ab\]cde]/ 118 athing 119 bthing 120 ]thing 121 cthing 122 dthing 123 ething 124 *** Failers 125 fthing 126 [thing 127 \\thing 128 129 /^[]cde]/ 130 ]thing 131 cthing 132 dthing 133 ething 134 *** Failers 135 athing 136 fthing 137 138 /^[^ab\]cde]/ 139 fthing 140 [thing 141 \\thing 142 *** Failers 143 athing 144 bthing 145 ]thing 146 cthing 147 dthing 148 ething 149 150 /^[^]cde]/ 151 athing 152 fthing 153 *** Failers 154 ]thing 155 cthing 156 dthing 157 ething 158 159 /^\/ 160 161 162 /^/ 163 164 165 /^[0-9]+$/ 166 0 167 1 168 2 169 3 170 4 171 5 172 6 173 7 174 8 175 9 176 10 177 100 178 *** Failers 179 abc 180 181 /^.*nter/ 182 enter 183 inter 184 uponter 185 186 /^xxx[0-9]+$/ 187 xxx0 188 xxx1234 189 *** Failers 190 xxx 191 192 /^.+[0-9][0-9][0-9]$/ 193 x123 194 xx123 195 123456 196 *** Failers 197 123 198 x1234 199 200 /^.+?[0-9][0-9][0-9]$/ 201 x123 202 xx123 203 123456 204 *** Failers 205 123 206 x1234 207 208 /^([^!]+)!(.+)=apquxz\.ixr\.zzz\.ac\.uk$/ 209 abc!pqr=apquxz.ixr.zzz.ac.uk 210 *** Failers 211 !pqr=apquxz.ixr.zzz.ac.uk 212 abc!=apquxz.ixr.zzz.ac.uk 213 abc!pqr=apquxz:ixr.zzz.ac.uk 214 abc!pqr=apquxz.ixr.zzz.ac.ukk 215 216 /:/ 217 Well, we need a colon: somewhere 218 *** Fail if we don't 219 220 /([\da-f:]+)$/i 221 0abc 222 abc 223 fed 224 E 225 :: 226 5f03:12C0::932e 227 fed def 228 Any old stuff 229 *** Failers 230 0zzz 231 gzzz 232 fed\x20 233 Any old rubbish 234 235 /^.*\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ 236 .1.2.3 237 A.12.123.0 238 *** Failers 239 .1.2.3333 240 1.2.3 241 1234.2.3 242 243 /^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/ 244 1 IN SOA non-sp1 non-sp2( 245 1 IN SOA non-sp1 non-sp2 ( 246 *** Failers 247 1IN SOA non-sp1 non-sp2( 248 249 /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/ 250 a. 251 Z. 252 2. 253 ab-c.pq-r. 254 sxk.zzz.ac.uk. 255 x-.y-. 256 *** Failers 257 -abc.peq. 258 259 /^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/ 260 *.a 261 *.b0-a 262 *.c3-b.c 263 *.c-a.b-c 264 *** Failers 265 *.0 266 *.a- 267 *.a-b.c- 268 *.c-a.0-c 269 270 /^(?=ab(de))(abd)(e)/ 271 abde 272 273 /^(?!(ab)de|x)(abd)(f)/ 274 abdf 275 276 /^(?=(ab(cd)))(ab)/ 277 abcd 278 279 /^[\da-f](\.[\da-f])*$/i 280 a.b.c.d 281 A.B.C.D 282 a.b.c.1.2.3.C 283 284 /^\".*\"\s*(;.*)?$/ 285 \"1234\" 286 \"abcd\" ; 287 \"\" ; rhubarb 288 *** Failers 289 \"1234\" : things 290 291 /^$/ 292 \ 293 *** Failers 294 295 / ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/x 296 ab c 297 *** Failers 298 abc 299 ab cde 300 301 /(?x) ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/ 302 ab c 303 *** Failers 304 abc 305 ab cde 306 307 /^ a\ b[c ]d $/x 308 a bcd 309 a b d 310 *** Failers 311 abcd 312 ab d 313 314 /^(a(b(c)))(d(e(f)))(h(i(j)))(k(l(m)))$/ 315 abcdefhijklm 316 317 /^(?:a(b(c)))(?:d(e(f)))(?:h(i(j)))(?:k(l(m)))$/ 318 abcdefhijklm 319 320 /^[\w][\W][\s][\S][\d][\D][\b][\n][\c]][\022]/ 321 a+ Z0+\x08\n\x1d\x12 322 323 /^[.^$|()*+?{,}]+/ 324 .^\$(*+)|{?,?} 325 326 /^a*\w/ 327 z 328 az 329 aaaz 330 a 331 aa 332 aaaa 333 a+ 334 aa+ 335 336 /^a*?\w/ 337 z 338 az 339 aaaz 340 a 341 aa 342 aaaa 343 a+ 344 aa+ 345 346 /^a+\w/ 347 az 348 aaaz 349 aa 350 aaaa 351 aa+ 352 353 /^a+?\w/ 354 az 355 aaaz 356 aa 357 aaaa 358 aa+ 359 360 /^\d{8}\w{2,}/ 361 1234567890 362 12345678ab 363 12345678__ 364 *** Failers 365 1234567 366 367 /^[aeiou\d]{4,5}$/ 368 uoie 369 1234 370 12345 371 aaaaa 372 *** Failers 373 123456 374 375 /^[aeiou\d]{4,5}?/ 376 uoie 377 1234 378 12345 379 aaaaa 380 123456 381 382 /\A(abc|def)=(\1){2,3}\Z/ 383 abc=abcabc 384 def=defdefdef 385 *** Failers 386 abc=defdef 387 388 /^(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\11*(\3\4)\1(?#)2$/ 389 abcdefghijkcda2 390 abcdefghijkkkkcda2 391 392 /(cat(a(ract|tonic)|erpillar)) \1()2(3)/ 393 cataract cataract23 394 catatonic catatonic23 395 caterpillar caterpillar23 396 397 398 /^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]/ 399 From abcd Mon Sep 01 12:33:02 1997 400 401 /^From\s+\S+\s+([a-zA-Z]{3}\s+){2}\d{1,2}\s+\d\d:\d\d/ 402 From abcd Mon Sep 01 12:33:02 1997 403 From abcd Mon Sep 1 12:33:02 1997 404 *** Failers 405 From abcd Sep 01 12:33:02 1997 406 407 /^12.34/s 408 12\n34 409 12\r34 410 411 /\w+(?=\t)/ 412 the quick brown\t fox 413 414 /foo(?!bar)(.*)/ 415 foobar is foolish see? 416 417 /(?:(?!foo)...|^.{0,2})bar(.*)/ 418 foobar crowbar etc 419 barrel 420 2barrel 421 A barrel 422 423 /^(\D*)(?=\d)(?!123)/ 424 abc456 425 *** Failers 426 abc123 427 428 /^1234(?# test newlines 429 inside)/ 430 1234 431 432 /^1234 #comment in extended re 433 /x 434 1234 435 436 /#rhubarb 437 abcd/x 438 abcd 439 440 /^abcd#rhubarb/x 441 abcd 442 443 /^(a)\1{2,3}(.)/ 444 aaab 445 aaaab 446 aaaaab 447 aaaaaab 448 449 /(?!^)abc/ 450 the abc 451 *** Failers 452 abc 453 454 /(?=^)abc/ 455 abc 456 *** Failers 457 the abc 458 459 /^[ab]{1,3}(ab*|b)/ 460 aabbbbb 461 462 /^[ab]{1,3}?(ab*|b)/ 463 aabbbbb 464 465 /^[ab]{1,3}?(ab*?|b)/ 466 aabbbbb 467 468 /^[ab]{1,3}(ab*?|b)/ 469 aabbbbb 470 471 / (?: [\040\t] | \( 472 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 473 \) )* # optional leading comment 474 (?: (?: 475 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 476 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 477 | 478 " (?: # opening quote... 479 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 480 | # or 481 \\ [^\x80-\xff] # Escaped something (something != CR) 482 )* " # closing quote 483 ) # initial word 484 (?: (?: [\040\t] | \( 485 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 486 \) )* \. (?: [\040\t] | \( 487 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 488 \) )* (?: 489 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 490 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 491 | 492 " (?: # opening quote... 493 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 494 | # or 495 \\ [^\x80-\xff] # Escaped something (something != CR) 496 )* " # closing quote 497 ) )* # further okay, if led by a period 498 (?: [\040\t] | \( 499 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 500 \) )* @ (?: [\040\t] | \( 501 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 502 \) )* (?: 503 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 504 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 505 | \[ # [ 506 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 507 \] # ] 508 ) # initial subdomain 509 (?: # 510 (?: [\040\t] | \( 511 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 512 \) )* \. # if led by a period... 513 (?: [\040\t] | \( 514 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 515 \) )* (?: 516 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 517 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 518 | \[ # [ 519 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 520 \] # ] 521 ) # ...further okay 522 )* 523 # address 524 | # or 525 (?: 526 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 527 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 528 | 529 " (?: # opening quote... 530 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 531 | # or 532 \\ [^\x80-\xff] # Escaped something (something != CR) 533 )* " # closing quote 534 ) # one word, optionally followed by.... 535 (?: 536 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] | # atom and space parts, or... 537 \( 538 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 539 \) | # comments, or... 540 541 " (?: # opening quote... 542 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 543 | # or 544 \\ [^\x80-\xff] # Escaped something (something != CR) 545 )* " # closing quote 546 # quoted strings 547 )* 548 < (?: [\040\t] | \( 549 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 550 \) )* # leading < 551 (?: @ (?: [\040\t] | \( 552 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 553 \) )* (?: 554 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 555 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 556 | \[ # [ 557 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 558 \] # ] 559 ) # initial subdomain 560 (?: # 561 (?: [\040\t] | \( 562 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 563 \) )* \. # if led by a period... 564 (?: [\040\t] | \( 565 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 566 \) )* (?: 567 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 568 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 569 | \[ # [ 570 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 571 \] # ] 572 ) # ...further okay 573 )* 574 575 (?: (?: [\040\t] | \( 576 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 577 \) )* , (?: [\040\t] | \( 578 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 579 \) )* @ (?: [\040\t] | \( 580 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 581 \) )* (?: 582 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 583 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 584 | \[ # [ 585 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 586 \] # ] 587 ) # initial subdomain 588 (?: # 589 (?: [\040\t] | \( 590 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 591 \) )* \. # if led by a period... 592 (?: [\040\t] | \( 593 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 594 \) )* (?: 595 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 596 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 597 | \[ # [ 598 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 599 \] # ] 600 ) # ...further okay 601 )* 602 )* # further okay, if led by comma 603 : # closing colon 604 (?: [\040\t] | \( 605 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 606 \) )* )? # optional route 607 (?: 608 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 609 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 610 | 611 " (?: # opening quote... 612 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 613 | # or 614 \\ [^\x80-\xff] # Escaped something (something != CR) 615 )* " # closing quote 616 ) # initial word 617 (?: (?: [\040\t] | \( 618 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 619 \) )* \. (?: [\040\t] | \( 620 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 621 \) )* (?: 622 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 623 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 624 | 625 " (?: # opening quote... 626 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 627 | # or 628 \\ [^\x80-\xff] # Escaped something (something != CR) 629 )* " # closing quote 630 ) )* # further okay, if led by a period 631 (?: [\040\t] | \( 632 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 633 \) )* @ (?: [\040\t] | \( 634 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 635 \) )* (?: 636 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 637 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 638 | \[ # [ 639 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 640 \] # ] 641 ) # initial subdomain 642 (?: # 643 (?: [\040\t] | \( 644 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 645 \) )* \. # if led by a period... 646 (?: [\040\t] | \( 647 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 648 \) )* (?: 649 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 650 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 651 | \[ # [ 652 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 653 \] # ] 654 ) # ...further okay 655 )* 656 # address spec 657 (?: [\040\t] | \( 658 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 659 \) )* > # trailing > 660 # name and address 661 ) (?: [\040\t] | \( 662 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 663 \) )* # optional trailing comment 664 /x 665 Alan Other <user\@dom.ain> 666 <user\@dom.ain> 667 user\@dom.ain 668 \"A. Other\" <user.1234\@dom.ain> (a comment) 669 A. Other <user.1234\@dom.ain> (a comment) 670 \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay 671 A missing angle <user\@some.where 672 *** Failers 673 The quick brown fox 674 675 /[\040\t]* # Nab whitespace. 676 (?: 677 \( # ( 678 [^\\\x80-\xff\n\015()] * # normal* 679 (?: # ( 680 (?: \\ [^\x80-\xff] | 681 \( # ( 682 [^\\\x80-\xff\n\015()] * # normal* 683 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 684 \) # ) 685 ) # special 686 [^\\\x80-\xff\n\015()] * # normal* 687 )* # )* 688 \) # ) 689 [\040\t]* )* # If comment found, allow more spaces. 690 # optional leading comment 691 (?: 692 (?: 693 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 694 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 695 # Atom 696 | # or 697 " # " 698 [^\\\x80-\xff\n\015"] * # normal 699 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 700 " # " 701 # Quoted string 702 ) 703 [\040\t]* # Nab whitespace. 704 (?: 705 \( # ( 706 [^\\\x80-\xff\n\015()] * # normal* 707 (?: # ( 708 (?: \\ [^\x80-\xff] | 709 \( # ( 710 [^\\\x80-\xff\n\015()] * # normal* 711 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 712 \) # ) 713 ) # special 714 [^\\\x80-\xff\n\015()] * # normal* 715 )* # )* 716 \) # ) 717 [\040\t]* )* # If comment found, allow more spaces. 718 (?: 719 \. 720 [\040\t]* # Nab whitespace. 721 (?: 722 \( # ( 723 [^\\\x80-\xff\n\015()] * # normal* 724 (?: # ( 725 (?: \\ [^\x80-\xff] | 726 \( # ( 727 [^\\\x80-\xff\n\015()] * # normal* 728 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 729 \) # ) 730 ) # special 731 [^\\\x80-\xff\n\015()] * # normal* 732 )* # )* 733 \) # ) 734 [\040\t]* )* # If comment found, allow more spaces. 735 (?: 736 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 737 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 738 # Atom 739 | # or 740 " # " 741 [^\\\x80-\xff\n\015"] * # normal 742 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 743 " # " 744 # Quoted string 745 ) 746 [\040\t]* # Nab whitespace. 747 (?: 748 \( # ( 749 [^\\\x80-\xff\n\015()] * # normal* 750 (?: # ( 751 (?: \\ [^\x80-\xff] | 752 \( # ( 753 [^\\\x80-\xff\n\015()] * # normal* 754 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 755 \) # ) 756 ) # special 757 [^\\\x80-\xff\n\015()] * # normal* 758 )* # )* 759 \) # ) 760 [\040\t]* )* # If comment found, allow more spaces. 761 # additional words 762 )* 763 @ 764 [\040\t]* # Nab whitespace. 765 (?: 766 \( # ( 767 [^\\\x80-\xff\n\015()] * # normal* 768 (?: # ( 769 (?: \\ [^\x80-\xff] | 770 \( # ( 771 [^\\\x80-\xff\n\015()] * # normal* 772 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 773 \) # ) 774 ) # special 775 [^\\\x80-\xff\n\015()] * # normal* 776 )* # )* 777 \) # ) 778 [\040\t]* )* # If comment found, allow more spaces. 779 (?: 780 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 781 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 782 | 783 \[ # [ 784 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 785 \] # ] 786 ) 787 [\040\t]* # Nab whitespace. 788 (?: 789 \( # ( 790 [^\\\x80-\xff\n\015()] * # normal* 791 (?: # ( 792 (?: \\ [^\x80-\xff] | 793 \( # ( 794 [^\\\x80-\xff\n\015()] * # normal* 795 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 796 \) # ) 797 ) # special 798 [^\\\x80-\xff\n\015()] * # normal* 799 )* # )* 800 \) # ) 801 [\040\t]* )* # If comment found, allow more spaces. 802 # optional trailing comments 803 (?: 804 \. 805 [\040\t]* # Nab whitespace. 806 (?: 807 \( # ( 808 [^\\\x80-\xff\n\015()] * # normal* 809 (?: # ( 810 (?: \\ [^\x80-\xff] | 811 \( # ( 812 [^\\\x80-\xff\n\015()] * # normal* 813 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 814 \) # ) 815 ) # special 816 [^\\\x80-\xff\n\015()] * # normal* 817 )* # )* 818 \) # ) 819 [\040\t]* )* # If comment found, allow more spaces. 820 (?: 821 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 822 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 823 | 824 \[ # [ 825 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 826 \] # ] 827 ) 828 [\040\t]* # Nab whitespace. 829 (?: 830 \( # ( 831 [^\\\x80-\xff\n\015()] * # normal* 832 (?: # ( 833 (?: \\ [^\x80-\xff] | 834 \( # ( 835 [^\\\x80-\xff\n\015()] * # normal* 836 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 837 \) # ) 838 ) # special 839 [^\\\x80-\xff\n\015()] * # normal* 840 )* # )* 841 \) # ) 842 [\040\t]* )* # If comment found, allow more spaces. 843 # optional trailing comments 844 )* 845 # address 846 | # or 847 (?: 848 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 849 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 850 # Atom 851 | # or 852 " # " 853 [^\\\x80-\xff\n\015"] * # normal 854 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 855 " # " 856 # Quoted string 857 ) 858 # leading word 859 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] * # "normal" atoms and or spaces 860 (?: 861 (?: 862 \( # ( 863 [^\\\x80-\xff\n\015()] * # normal* 864 (?: # ( 865 (?: \\ [^\x80-\xff] | 866 \( # ( 867 [^\\\x80-\xff\n\015()] * # normal* 868 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 869 \) # ) 870 ) # special 871 [^\\\x80-\xff\n\015()] * # normal* 872 )* # )* 873 \) # ) 874 | 875 " # " 876 [^\\\x80-\xff\n\015"] * # normal 877 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 878 " # " 879 ) # "special" comment or quoted string 880 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] * # more "normal" 881 )* 882 < 883 [\040\t]* # Nab whitespace. 884 (?: 885 \( # ( 886 [^\\\x80-\xff\n\015()] * # normal* 887 (?: # ( 888 (?: \\ [^\x80-\xff] | 889 \( # ( 890 [^\\\x80-\xff\n\015()] * # normal* 891 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 892 \) # ) 893 ) # special 894 [^\\\x80-\xff\n\015()] * # normal* 895 )* # )* 896 \) # ) 897 [\040\t]* )* # If comment found, allow more spaces. 898 # < 899 (?: 900 @ 901 [\040\t]* # Nab whitespace. 902 (?: 903 \( # ( 904 [^\\\x80-\xff\n\015()] * # normal* 905 (?: # ( 906 (?: \\ [^\x80-\xff] | 907 \( # ( 908 [^\\\x80-\xff\n\015()] * # normal* 909 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 910 \) # ) 911 ) # special 912 [^\\\x80-\xff\n\015()] * # normal* 913 )* # )* 914 \) # ) 915 [\040\t]* )* # If comment found, allow more spaces. 916 (?: 917 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 918 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 919 | 920 \[ # [ 921 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 922 \] # ] 923 ) 924 [\040\t]* # Nab whitespace. 925 (?: 926 \( # ( 927 [^\\\x80-\xff\n\015()] * # normal* 928 (?: # ( 929 (?: \\ [^\x80-\xff] | 930 \( # ( 931 [^\\\x80-\xff\n\015()] * # normal* 932 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 933 \) # ) 934 ) # special 935 [^\\\x80-\xff\n\015()] * # normal* 936 )* # )* 937 \) # ) 938 [\040\t]* )* # If comment found, allow more spaces. 939 # optional trailing comments 940 (?: 941 \. 942 [\040\t]* # Nab whitespace. 943 (?: 944 \( # ( 945 [^\\\x80-\xff\n\015()] * # normal* 946 (?: # ( 947 (?: \\ [^\x80-\xff] | 948 \( # ( 949 [^\\\x80-\xff\n\015()] * # normal* 950 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 951 \) # ) 952 ) # special 953 [^\\\x80-\xff\n\015()] * # normal* 954 )* # )* 955 \) # ) 956 [\040\t]* )* # If comment found, allow more spaces. 957 (?: 958 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 959 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 960 | 961 \[ # [ 962 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 963 \] # ] 964 ) 965 [\040\t]* # Nab whitespace. 966 (?: 967 \( # ( 968 [^\\\x80-\xff\n\015()] * # normal* 969 (?: # ( 970 (?: \\ [^\x80-\xff] | 971 \( # ( 972 [^\\\x80-\xff\n\015()] * # normal* 973 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 974 \) # ) 975 ) # special 976 [^\\\x80-\xff\n\015()] * # normal* 977 )* # )* 978 \) # ) 979 [\040\t]* )* # If comment found, allow more spaces. 980 # optional trailing comments 981 )* 982 (?: , 983 [\040\t]* # Nab whitespace. 984 (?: 985 \( # ( 986 [^\\\x80-\xff\n\015()] * # normal* 987 (?: # ( 988 (?: \\ [^\x80-\xff] | 989 \( # ( 990 [^\\\x80-\xff\n\015()] * # normal* 991 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 992 \) # ) 993 ) # special 994 [^\\\x80-\xff\n\015()] * # normal* 995 )* # )* 996 \) # ) 997 [\040\t]* )* # If comment found, allow more spaces. 998 @ 999 [\040\t]* # Nab whitespace. 1000 (?: 1001 \( # ( 1002 [^\\\x80-\xff\n\015()] * # normal* 1003 (?: # ( 1004 (?: \\ [^\x80-\xff] | 1005 \( # ( 1006 [^\\\x80-\xff\n\015()] * # normal* 1007 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1008 \) # ) 1009 ) # special 1010 [^\\\x80-\xff\n\015()] * # normal* 1011 )* # )* 1012 \) # ) 1013 [\040\t]* )* # If comment found, allow more spaces. 1014 (?: 1015 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1016 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1017 | 1018 \[ # [ 1019 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 1020 \] # ] 1021 ) 1022 [\040\t]* # Nab whitespace. 1023 (?: 1024 \( # ( 1025 [^\\\x80-\xff\n\015()] * # normal* 1026 (?: # ( 1027 (?: \\ [^\x80-\xff] | 1028 \( # ( 1029 [^\\\x80-\xff\n\015()] * # normal* 1030 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1031 \) # ) 1032 ) # special 1033 [^\\\x80-\xff\n\015()] * # normal* 1034 )* # )* 1035 \) # ) 1036 [\040\t]* )* # If comment found, allow more spaces. 1037 # optional trailing comments 1038 (?: 1039 \. 1040 [\040\t]* # Nab whitespace. 1041 (?: 1042 \( # ( 1043 [^\\\x80-\xff\n\015()] * # normal* 1044 (?: # ( 1045 (?: \\ [^\x80-\xff] | 1046 \( # ( 1047 [^\\\x80-\xff\n\015()] * # normal* 1048 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1049 \) # ) 1050 ) # special 1051 [^\\\x80-\xff\n\015()] * # normal* 1052 )* # )* 1053 \) # ) 1054 [\040\t]* )* # If comment found, allow more spaces. 1055 (?: 1056 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1057 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1058 | 1059 \[ # [ 1060 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 1061 \] # ] 1062 ) 1063 [\040\t]* # Nab whitespace. 1064 (?: 1065 \( # ( 1066 [^\\\x80-\xff\n\015()] * # normal* 1067 (?: # ( 1068 (?: \\ [^\x80-\xff] | 1069 \( # ( 1070 [^\\\x80-\xff\n\015()] * # normal* 1071 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1072 \) # ) 1073 ) # special 1074 [^\\\x80-\xff\n\015()] * # normal* 1075 )* # )* 1076 \) # ) 1077 [\040\t]* )* # If comment found, allow more spaces. 1078 # optional trailing comments 1079 )* 1080 )* # additional domains 1081 : 1082 [\040\t]* # Nab whitespace. 1083 (?: 1084 \( # ( 1085 [^\\\x80-\xff\n\015()] * # normal* 1086 (?: # ( 1087 (?: \\ [^\x80-\xff] | 1088 \( # ( 1089 [^\\\x80-\xff\n\015()] * # normal* 1090 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1091 \) # ) 1092 ) # special 1093 [^\\\x80-\xff\n\015()] * # normal* 1094 )* # )* 1095 \) # ) 1096 [\040\t]* )* # If comment found, allow more spaces. 1097 # optional trailing comments 1098 )? # optional route 1099 (?: 1100 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1101 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1102 # Atom 1103 | # or 1104 " # " 1105 [^\\\x80-\xff\n\015"] * # normal 1106 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 1107 " # " 1108 # Quoted string 1109 ) 1110 [\040\t]* # Nab whitespace. 1111 (?: 1112 \( # ( 1113 [^\\\x80-\xff\n\015()] * # normal* 1114 (?: # ( 1115 (?: \\ [^\x80-\xff] | 1116 \( # ( 1117 [^\\\x80-\xff\n\015()] * # normal* 1118 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1119 \) # ) 1120 ) # special 1121 [^\\\x80-\xff\n\015()] * # normal* 1122 )* # )* 1123 \) # ) 1124 [\040\t]* )* # If comment found, allow more spaces. 1125 (?: 1126 \. 1127 [\040\t]* # Nab whitespace. 1128 (?: 1129 \( # ( 1130 [^\\\x80-\xff\n\015()] * # normal* 1131 (?: # ( 1132 (?: \\ [^\x80-\xff] | 1133 \( # ( 1134 [^\\\x80-\xff\n\015()] * # normal* 1135 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1136 \) # ) 1137 ) # special 1138 [^\\\x80-\xff\n\015()] * # normal* 1139 )* # )* 1140 \) # ) 1141 [\040\t]* )* # If comment found, allow more spaces. 1142 (?: 1143 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1144 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1145 # Atom 1146 | # or 1147 " # " 1148 [^\\\x80-\xff\n\015"] * # normal 1149 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 1150 " # " 1151 # Quoted string 1152 ) 1153 [\040\t]* # Nab whitespace. 1154 (?: 1155 \( # ( 1156 [^\\\x80-\xff\n\015()] * # normal* 1157 (?: # ( 1158 (?: \\ [^\x80-\xff] | 1159 \( # ( 1160 [^\\\x80-\xff\n\015()] * # normal* 1161 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1162 \) # ) 1163 ) # special 1164 [^\\\x80-\xff\n\015()] * # normal* 1165 )* # )* 1166 \) # ) 1167 [\040\t]* )* # If comment found, allow more spaces. 1168 # additional words 1169 )* 1170 @ 1171 [\040\t]* # Nab whitespace. 1172 (?: 1173 \( # ( 1174 [^\\\x80-\xff\n\015()] * # normal* 1175 (?: # ( 1176 (?: \\ [^\x80-\xff] | 1177 \( # ( 1178 [^\\\x80-\xff\n\015()] * # normal* 1179 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1180 \) # ) 1181 ) # special 1182 [^\\\x80-\xff\n\015()] * # normal* 1183 )* # )* 1184 \) # ) 1185 [\040\t]* )* # If comment found, allow more spaces. 1186 (?: 1187 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1188 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1189 | 1190 \[ # [ 1191 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 1192 \] # ] 1193 ) 1194 [\040\t]* # Nab whitespace. 1195 (?: 1196 \( # ( 1197 [^\\\x80-\xff\n\015()] * # normal* 1198 (?: # ( 1199 (?: \\ [^\x80-\xff] | 1200 \( # ( 1201 [^\\\x80-\xff\n\015()] * # normal* 1202 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1203 \) # ) 1204 ) # special 1205 [^\\\x80-\xff\n\015()] * # normal* 1206 )* # )* 1207 \) # ) 1208 [\040\t]* )* # If comment found, allow more spaces. 1209 # optional trailing comments 1210 (?: 1211 \. 1212 [\040\t]* # Nab whitespace. 1213 (?: 1214 \( # ( 1215 [^\\\x80-\xff\n\015()] * # normal* 1216 (?: # ( 1217 (?: \\ [^\x80-\xff] | 1218 \( # ( 1219 [^\\\x80-\xff\n\015()] * # normal* 1220 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1221 \) # ) 1222 ) # special 1223 [^\\\x80-\xff\n\015()] * # normal* 1224 )* # )* 1225 \) # ) 1226 [\040\t]* )* # If comment found, allow more spaces. 1227 (?: 1228 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1229 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1230 | 1231 \[ # [ 1232 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 1233 \] # ] 1234 ) 1235 [\040\t]* # Nab whitespace. 1236 (?: 1237 \( # ( 1238 [^\\\x80-\xff\n\015()] * # normal* 1239 (?: # ( 1240 (?: \\ [^\x80-\xff] | 1241 \( # ( 1242 [^\\\x80-\xff\n\015()] * # normal* 1243 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1244 \) # ) 1245 ) # special 1246 [^\\\x80-\xff\n\015()] * # normal* 1247 )* # )* 1248 \) # ) 1249 [\040\t]* )* # If comment found, allow more spaces. 1250 # optional trailing comments 1251 )* 1252 # address spec 1253 > # > 1254 # name and address 1255 ) 1256 /x 1257 Alan Other <user\@dom.ain> 1258 <user\@dom.ain> 1259 user\@dom.ain 1260 \"A. Other\" <user.1234\@dom.ain> (a comment) 1261 A. Other <user.1234\@dom.ain> (a comment) 1262 \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay 1263 A missing angle <user\@some.where 1264 *** Failers 1265 The quick brown fox 1266 1267 /abc\0def\00pqr\000xyz\0000AB/ 1268 abc\0def\00pqr\000xyz\0000AB 1269 abc456 abc\0def\00pqr\000xyz\0000ABCDE 1270 1271 /abc\x0def\x00pqr\x000xyz\x0000AB/ 1272 abc\x0def\x00pqr\x000xyz\x0000AB 1273 abc456 abc\x0def\x00pqr\x000xyz\x0000ABCDE 1274 1275 /^[\000-\037]/ 1276 \0A 1277 \01B 1278 \037C 1279 1280 /\0*/ 1281 \0\0\0\0 1282 1283 /A\x0{2,3}Z/ 1284 The A\x0\x0Z 1285 An A\0\x0\0Z 1286 *** Failers 1287 A\0Z 1288 A\0\x0\0\x0Z 1289 1290 /^(cow|)\1(bell)/ 1291 cowcowbell 1292 bell 1293 *** Failers 1294 cowbell 1295 1296 /^\s/ 1297 \040abc 1298 \x0cabc 1299 \nabc 1300 \rabc 1301 \tabc 1302 *** Failers 1303 abc 1304 1305 /^a b 1306 c/x 1308 abc 1309 1310 /^(a|)\1*b/ 1311 ab 1312 aaaab 1313 b 1314 *** Failers 1315 acb 1316 1317 /^(a|)\1+b/ 1318 aab 1319 aaaab 1320 b 1321 *** Failers 1322 ab 1323 1324 /^(a|)\1?b/ 1325 ab 1326 aab 1327 b 1328 *** Failers 1329 acb 1330 1331 /^(a|)\1{2}b/ 1332 aaab 1333 b 1334 *** Failers 1335 ab 1336 aab 1337 aaaab 1338 1339 /^(a|)\1{2,3}b/ 1340 aaab 1341 aaaab 1342 b 1343 *** Failers 1344 ab 1345 aab 1346 aaaaab 1347 1348 /ab{1,3}bc/ 1349 abbbbc 1350 abbbc 1351 abbc 1352 *** Failers 1353 abc 1354 abbbbbc 1355 1356 /([^.]*)\.([^:]*):[T ]+(.*)/ 1357 track1.title:TBlah blah blah 1358 1359 /([^.]*)\.([^:]*):[T ]+(.*)/i 1360 track1.title:TBlah blah blah 1361 1362 /([^.]*)\.([^:]*):[t ]+(.*)/i 1363 track1.title:TBlah blah blah 1364 1365 /^[W-c]+$/ 1366 WXY_^abc 1367 *** Failers 1368 wxy 1369 1370 /^[W-c]+$/i 1371 WXY_^abc 1372 wxy_^ABC 1373 1374 /^[\x3f-\x5F]+$/i 1375 WXY_^abc 1376 wxy_^ABC 1377 1378 /^abc$/m 1379 abc 1380 qqq\nabc 1381 abc\nzzz 1382 qqq\nabc\nzzz 1383 1384 /^abc$/ 1385 abc 1386 *** Failers 1387 qqq\nabc 1388 abc\nzzz 1389 qqq\nabc\nzzz 1390 1391 /\Aabc\Z/m 1392 abc 1393 abc\n 1394 *** Failers 1395 qqq\nabc 1396 abc\nzzz 1397 qqq\nabc\nzzz 1398 1399 /\A(.)*\Z/s 1400 abc\ndef 1401 1402 /\A(.)*\Z/m 1403 *** Failers 1404 abc\ndef 1405 1406 /(?:b)|(?::+)/ 1407 b::c 1408 c::b 1409 1410 /[-az]+/ 1411 az- 1412 *** Failers 1413 b 1414 1415 /[az-]+/ 1416 za- 1417 *** Failers 1418 b 1419 1420 /[a\-z]+/ 1421 a-z 1422 *** Failers 1423 b 1424 1425 /[a-z]+/ 1426 abcdxyz 1427 1428 /[\d-]+/ 1429 12-34 1430 *** Failers 1431 aaa 1432 1433 /[\d-z]+/ 1434 12-34z 1435 *** Failers 1436 aaa 1437 1438 /\x5c/ 1439 \\ 1440 1441 /\x20Z/ 1442 the Zoo 1443 *** Failers 1444 Zulu 1445 1446 /(abc)\1/i 1447 abcabc 1448 ABCabc 1449 abcABC 1450 1451 /ab{3cd/ 1452 ab{3cd 1453 1454 /ab{3,cd/ 1455 ab{3,cd 1456 1457 /ab{3,4a}cd/ 1458 ab{3,4a}cd 1459 1460 /{4,5a}bc/ 1461 {4,5a}bc 1462 1463 /abc$/ 1464 abc 1465 abc\n 1466 *** Failers 1467 abc\ndef 1468 1469 /(abc)\123/ 1470 abc\x53 1471 1472 /(abc)\223/ 1473 abc\x93 1474 1475 /(abc)\323/ 1476 abc\xd3 1477 1478 /(abc)\100/ 1479 abc\x40 1480 abc\100 1481 1482 /(abc)\1000/ 1483 abc\x400 1484 abc\x40\x30 1485 abc\1000 1486 abc\100\x30 1487 abc\100\060 1488 abc\100\60 1489 1490 /^A\8B\9C$/ 1491 A8B9C 1492 *** Failers 1493 A\08B\09C 1494 1495 /^(A)(B)(C)(D)(E)(F)(G)(H)(I)\8\9$/ 1496 ABCDEFGHIHI 1497 1498 /^[A\8B\9C]+$/ 1499 A8B9C 1500 *** Failers 1501 A8B9C\x00 1502 1503 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\12\123/ 1504 abcdefghijkllS 1505 1506 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\12\123/ 1507 abcdefghijk\12S 1508 1509 /ab\idef/ 1510 abidef 1511 1512 /a{0}bc/ 1513 bc 1514 1515 /(a|(bc)){0,0}?xyz/ 1516 xyz 1517 1518 /abc[\10]de/ 1519 abc\010de 1520 1521 /abc[\1]de/ 1522 abc\1de 1523 1524 /(abc)[\1]de/ 1525 abc\1de 1526 1527 /(?s)a.b/ 1528 a\nb 1529 1530 /^([^a])([^\b])([^c]*)([^d]{3,4})/ 1531 baNOTccccd 1532 baNOTcccd 1533 baNOTccd 1534 bacccd 1535 *** Failers 1536 anything 1537 b\bc 1538 baccd 1539 1540 /[^a]/ 1541 Abc 1542 1543 /[^a]/i 1544 Abc 1545 1546 /[^a]+/ 1547 AAAaAbc 1548 1549 /[^a]+/i 1550 AAAaAbc 1551 1552 /[^a]+/ 1553 bbb\nccc 1554 1555 /[^k]$/ 1556 abc 1557 *** Failers 1558 abk 1559 1560 /[^k]{2,3}$/ 1561 abc 1562 kbc 1563 kabc 1564 *** Failers 1565 abk 1566 akb 1567 akk 1568 1569 /^\d{8,}\@.+[^k]$/ 1570 12345678\@a.b.c.d 1571 123456789\@x.y.z 1572 *** Failers 1573 12345678\@x.y.uk 1574 1234567\@a.b.c.d 1575 1576 /(a)\1{8,}/ 1577 aaaaaaaaa 1578 aaaaaaaaaa 1579 *** Failers 1580 aaaaaaa 1581 1582 /[^a]/ 1583 aaaabcd 1584 aaAabcd 1585 1586 /[^a]/i 1587 aaaabcd 1588 aaAabcd 1589 1590 /[^az]/ 1591 aaaabcd 1592 aaAabcd 1593 1594 /[^az]/i 1595 aaaabcd 1596 aaAabcd 1597 1598 /\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377/ 1599 \000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377 1600 1601 /P[^*]TAIRE[^*]{1,6}?LL/ 1602 xxxxxxxxxxxPSTAIREISLLxxxxxxxxx 1603 1604 /P[^*]TAIRE[^*]{1,}?LL/ 1605 xxxxxxxxxxxPSTAIREISLLxxxxxxxxx 1606 1607 /(\.\d\d[1-9]?)\d+/ 1608 1.230003938 1609 1.875000282 1610 1.235 1611 1612 /(\.\d\d((?=0)|\d(?=\d)))/ 1613 1.230003938 1614 1.875000282 1615 *** Failers 1616 1.235 1617 1618 /a(?)b/ 1619 ab 1620 1621 /\b(foo)\s+(\w+)/i 1622 Food is on the foo table 1623 1624 /foo(.*)bar/ 1625 The food is under the bar in the barn. 1626 1627 /foo(.*?)bar/ 1628 The food is under the bar in the barn. 1629 1630 /(.*)(\d*)/ 1631 I have 2 numbers: 53147 1632 1633 /(.*)(\d+)/ 1634 I have 2 numbers: 53147 1635 1636 /(.*?)(\d*)/ 1637 I have 2 numbers: 53147 1638 1639 /(.*?)(\d+)/ 1640 I have 2 numbers: 53147 1641 1642 /(.*)(\d+)$/ 1643 I have 2 numbers: 53147 1644 1645 /(.*?)(\d+)$/ 1646 I have 2 numbers: 53147 1647 1648 /(.*)\b(\d+)$/ 1649 I have 2 numbers: 53147 1650 1651 /(.*\D)(\d+)$/ 1652 I have 2 numbers: 53147 1653 1654 /^\D*(?!123)/ 1655 ABC123 1656 1657 /^(\D*)(?=\d)(?!123)/ 1658 ABC445 1659 *** Failers 1660 ABC123 1661 1662 /^[W-]46]/ 1663 W46]789 1664 -46]789 1665 *** Failers 1666 Wall 1667 Zebra 1668 42 1669 [abcd] 1670 ]abcd[ 1671 1672 /^[W-\]46]/ 1673 W46]789 1674 Wall 1675 Zebra 1676 Xylophone 1677 42 1678 [abcd] 1679 ]abcd[ 1680 \\backslash 1681 *** Failers 1682 -46]789 1683 well 1684 1685 /\d\d\/\d\d\/\d\d\d\d/ 1686 01/01/2000 1687 1688 /word (?:[a-zA-Z0-9]+ ){0,10}otherword/ 1689 word cat dog elephant mussel cow horse canary baboon snake shark otherword 1690 word cat dog elephant mussel cow horse canary baboon snake shark 1691 1692 /word (?:[a-zA-Z0-9]+ ){0,300}otherword/ 1693 word cat dog elephant mussel cow horse canary baboon snake shark the quick brown fox and the lazy dog and several other words getting close to thirty by now I hope 1694 1695 /^(a){0,0}/ 1696 bcd 1697 abc 1698 aab 1699 1700 /^(a){0,1}/ 1701 bcd 1702 abc 1703 aab 1704 1705 /^(a){0,2}/ 1706 bcd 1707 abc 1708 aab 1709 1710 /^(a){0,3}/ 1711 bcd 1712 abc 1713 aab 1714 aaa 1715 1716 /^(a){0,}/ 1717 bcd 1718 abc 1719 aab 1720 aaa 1721 aaaaaaaa 1722 1723 /^(a){1,1}/ 1724 bcd 1725 abc 1726 aab 1727 1728 /^(a){1,2}/ 1729 bcd 1730 abc 1731 aab 1732 1733 /^(a){1,3}/ 1734 bcd 1735 abc 1736 aab 1737 aaa 1738 1739 /^(a){1,}/ 1740 bcd 1741 abc 1742 aab 1743 aaa 1744 aaaaaaaa 1745 1746 /.*\.gif/ 1747 borfle\nbib.gif\nno 1748 1749 /.{0,}\.gif/ 1750 borfle\nbib.gif\nno 1751 1752 /.*\.gif/m 1753 borfle\nbib.gif\nno 1754 1755 /.*\.gif/s 1756 borfle\nbib.gif\nno 1757 1758 /.*\.gif/ms 1759 borfle\nbib.gif\nno 1760 1761 /.*$/ 1762 borfle\nbib.gif\nno 1763 1764 /.*$/m 1765 borfle\nbib.gif\nno 1766 1767 /.*$/s 1768 borfle\nbib.gif\nno 1769 1770 /.*$/ms 1771 borfle\nbib.gif\nno 1772 1773 /.*$/ 1774 borfle\nbib.gif\nno\n 1775 1776 /.*$/m 1777 borfle\nbib.gif\nno\n 1778 1779 /.*$/s 1780 borfle\nbib.gif\nno\n 1781 1782 /.*$/ms 1783 borfle\nbib.gif\nno\n 1784 1785 /(.*X|^B)/ 1786 abcde\n1234Xyz 1787 BarFoo 1788 *** Failers 1789 abcde\nBar 1790 1791 /(.*X|^B)/m 1792 abcde\n1234Xyz 1793 BarFoo 1794 abcde\nBar 1795 1796 /(.*X|^B)/s 1797 abcde\n1234Xyz 1798 BarFoo 1799 *** Failers 1800 abcde\nBar 1801 1802 /(.*X|^B)/ms 1803 abcde\n1234Xyz 1804 BarFoo 1805 abcde\nBar 1806 1807 /(?s)(.*X|^B)/ 1808 abcde\n1234Xyz 1809 BarFoo 1810 *** Failers 1811 abcde\nBar 1812 1813 /(?s:.*X|^B)/ 1814 abcde\n1234Xyz 1815 BarFoo 1816 *** Failers 1817 abcde\nBar 1818 1819 /^.*B/ 1820 **** Failers 1821 abc\nB 1822 1823 /(?s)^.*B/ 1824 abc\nB 1825 1826 /(?m)^.*B/ 1827 abc\nB 1828 1829 /(?ms)^.*B/ 1830 abc\nB 1831 1832 /(?ms)^B/ 1833 abc\nB 1834 1835 /(?s)B$/ 1836 B\n 1837 1838 /^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]/ 1839 123456654321 1840 1841 /^\d\d\d\d\d\d\d\d\d\d\d\d/ 1842 123456654321 1843 1844 /^[\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d]/ 1845 123456654321 1846 1847 /^[abc]{12}/ 1848 abcabcabcabc 1849 1850 /^[a-c]{12}/ 1851 abcabcabcabc 1852 1853 /^(a|b|c){12}/ 1854 abcabcabcabc 1855 1856 /^[abcdefghijklmnopqrstuvwxy0123456789]/ 1857 n 1858 *** Failers 1859 z 1860 1861 /abcde{0,0}/ 1862 abcd 1863 *** Failers 1864 abce 1865 1866 /ab[cd]{0,0}e/ 1867 abe 1868 *** Failers 1869 abcde 1870 1871 /ab(c){0,0}d/ 1872 abd 1873 *** Failers 1874 abcd 1875 1876 /a(b*)/ 1877 a 1878 ab 1879 abbbb 1880 *** Failers 1881 bbbbb 1882 1883 /ab\d{0}e/ 1884 abe 1885 *** Failers 1886 ab1e 1887 1888 /"([^\\"]+|\\.)*"/ 1889 the \"quick\" brown fox 1890 \"the \\\"quick\\\" brown fox\" 1891 1892 /.*?/g+ 1893 abc 1894 1895 /\b/g+ 1896 abc 1897 1898 /\b/+g 1899 abc 1900 1901 //g 1902 abc 1903 1904 /<tr([\w\W\s\d][^<>]{0,})><TD([\w\W\s\d][^<>]{0,})>([\d]{0,}\.)(.*)((<BR>([\w\W\s\d][^<>]{0,})|[\s]{0,}))<\/a><\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><\/TR>/is 1905 <TR BGCOLOR='#DBE9E9'><TD align=left valign=top>43.<a href='joblist.cfm?JobID=94 6735&Keyword='>Word Processor<BR>(N-1286)</a></TD><TD align=left valign=top>Lega lstaff.com</TD><TD align=left valign=top>CA - Statewide</TD></TR> 1906 1907 /a[^a]b/ 1908 acb 1909 a\nb 1910 1911 /a.b/ 1912 acb 1913 *** Failers 1914 a\nb 1915 1916 /a[^a]b/s 1917 acb 1918 a\nb 1919 1920 /a.b/s 1921 acb 1922 a\nb 1923 1924 /^(b+?|a){1,2}?c/ 1925 bac 1926 bbac 1927 bbbac 1928 bbbbac 1929 bbbbbac 1930 1931 /^(b+|a){1,2}?c/ 1932 bac 1933 bbac 1934 bbbac 1935 bbbbac 1936 bbbbbac 1937 1938 /(?!\A)x/m 1939 x\nb\n 1940 a\bx\n 1941 1942 /\x0{ab}/ 1943 \0{ab} 1944 1945 /(A|B)*?CD/ 1946 CD 1947 1948 /(A|B)*CD/ 1949 CD 1950 1951 /(AB)*?\1/ 1952 ABABAB 1953 1954 /(AB)*\1/ 1955 ABABAB 1956 1957 /(?<!bar)foo/ 1958 foo 1959 catfood 1960 arfootle 1961 rfoosh 1962 *** Failers 1963 barfoo 1964 towbarfoo 1965 1966 /\w{3}(?<!bar)foo/ 1967 catfood 1968 *** Failers 1969 foo 1970 barfoo 1971 towbarfoo 1972 1973 /(?<=(foo)a)bar/ 1974 fooabar 1975 *** Failers 1976 bar 1977 foobbar 1978 1979 /\Aabc\z/m 1980 abc 1981 *** Failers 1982 abc\n 1983 qqq\nabc 1984 abc\nzzz 1985 qqq\nabc\nzzz 1986 1987 "(?>.*/)foo" 1988 /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/it/you/see/ 1989 1990 "(?>.*/)foo" 1991 /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/and/foo 1992 1993 /(?>(\.\d\d[1-9]?))\d+/ 1994 1.230003938 1995 1.875000282 1996 *** Failers 1997 1.235 1998 1999 /^((?>\w+)|(?>\s+))*$/ 2000 now is the time for all good men to come to the aid of the party 2001 *** Failers 2002 this is not a line with only words and spaces! 2003 2004 /(\d+)(\w)/ 2005 12345a 2006 12345+ 2007 2008 /((?>\d+))(\w)/ 2009 12345a 2010 *** Failers 2011 12345+ 2012 2013 /(?>a+)b/ 2014 aaab 2015 2016 /((?>a+)b)/ 2017 aaab 2018 2019 /(?>(a+))b/ 2020 aaab 2021 2022 /(?>b)+/ 2023 aaabbbccc 2024 2025 /(?>a+|b+|c+)*c/ 2026 aaabbbbccccd 2027 2028 /((?>[^()]+)|\([^()]*\))+/ 2029 ((abc(ade)ufh()()x 2030 2031 /\(((?>[^()]+)|\([^()]+\))+\)/ 2032 (abc) 2033 (abc(def)xyz) 2034 *** Failers 2035 ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 2036 2037 /a(?-i)b/i 2038 ab 2039 Ab 2040 *** Failers 2041 aB 2042 AB 2043 2044 /(a (?x)b c)d e/ 2045 a bcd e 2046 *** Failers 2047 a b cd e 2048 abcd e 2049 a bcde 2050 2051 /(a b(?x)c d (?-x)e f)/ 2052 a bcde f 2053 *** Failers 2054 abcdef 2055 2056 /(a(?i)b)c/ 2057 abc 2058 aBc 2059 *** Failers 2060 abC 2061 aBC 2062 Abc 2063 ABc 2064 ABC 2065 AbC 2066 2067 /a(?i:b)c/ 2068 abc 2069 aBc 2070 *** Failers 2071 ABC 2072 abC 2073 aBC 2074 2075 /a(?i:b)*c/ 2076 aBc 2077 aBBc 2078 *** Failers 2079 aBC 2080 aBBC 2081 2082 /a(?=b(?i)c)\w\wd/ 2083 abcd 2084 abCd 2085 *** Failers 2086 aBCd 2087 abcD 2088 2089 /(?s-i:more.*than).*million/i 2090 more than million 2091 more than MILLION 2092 more \n than Million 2093 *** Failers 2094 MORE THAN MILLION 2095 more \n than \n million 2096 2097 /(?:(?s-i)more.*than).*million/i 2098 more than million 2099 more than MILLION 2100 more \n than Million 2101 *** Failers 2102 MORE THAN MILLION 2103 more \n than \n million 2104 2105 /(?>a(?i)b+)+c/ 2106 abc 2107 aBbc 2108 aBBc 2109 *** Failers 2110 Abc 2111 abAb 2112 abbC 2113 2114 /(?=a(?i)b)\w\wc/ 2115 abc 2116 aBc 2117 *** Failers 2118 Ab 2119 abC 2120 aBC 2121 2122 /(?<=a(?i)b)(\w\w)c/ 2123 abxxc 2124 aBxxc 2125 *** Failers 2126 Abxxc 2127 ABxxc 2128 abxxC 2129 2130 /(?:(a)|b)(?(1)A|B)/ 2131 aA 2132 bB 2133 *** Failers 2134 aB 2135 bA 2136 2137 /^(a)?(?(1)a|b)+$/ 2138 aa 2139 b 2140 bb 2141 *** Failers 2142 ab 2143 2144 /^(?(?=abc)\w{3}:|\d\d)$/ 2145 abc: 2146 12 2147 *** Failers 2148 123 2149 xyz 2150 2151 /^(?(?!abc)\d\d|\w{3}:)$/ 2152 abc: 2153 12 2154 *** Failers 2155 123 2156 xyz 2157 2158 /(?(?<=foo)bar|cat)/ 2159 foobar 2160 cat 2161 fcat 2162 focat 2163 *** Failers 2164 foocat 2165 2166 /(?(?<!foo)cat|bar)/ 2167 foobar 2168 cat 2169 fcat 2170 focat 2171 *** Failers 2172 foocat 2173 2174 /( \( )? [^()]+ (?(1) \) |) /x 2175 abcd 2176 (abcd) 2177 the quick (abcd) fox 2178 (abcd 2179 2180 /( \( )? [^()]+ (?(1) \) ) /x 2181 abcd 2182 (abcd) 2183 the quick (abcd) fox 2184 (abcd 2185 2186 /^(?(2)a|(1)(2))+$/ 2187 12 2188 12a 2189 12aa 2190 *** Failers 2191 1234 2192 2193 /((?i)blah)\s+\1/ 2194 blah blah 2195 BLAH BLAH 2196 Blah Blah 2197 blaH blaH 2198 *** Failers 2199 blah BLAH 2200 Blah blah 2201 blaH blah 2202 2203 /((?i)blah)\s+(?i:\1)/ 2204 blah blah 2205 BLAH BLAH 2206 Blah Blah 2207 blaH blaH 2208 blah BLAH 2209 Blah blah 2210 blaH blah 2211 2212 /(?>a*)*/ 2213 a 2214 aa 2215 aaaa 2216 2217 /(abc|)+/ 2218 abc 2219 abcabc 2220 abcabcabc 2221 xyz 2222 2223 /([a]*)*/ 2224 a 2225 aaaaa 2226 2227 /([ab]*)*/ 2228 a 2229 b 2230 ababab 2231 aaaabcde 2232 bbbb 2233 2234 /([^a]*)*/ 2235 b 2236 bbbb 2237 aaa 2238 2239 /([^ab]*)*/ 2240 cccc 2241 abab 2242 2243 /([a]*?)*/ 2244 a 2245 aaaa 2246 2247 /([ab]*?)*/ 2248 a 2249 b 2250 abab 2251 baba 2252 2253 /([^a]*?)*/ 2254 b 2255 bbbb 2256 aaa 2257 2258 /([^ab]*?)*/ 2259 c 2260 cccc 2261 baba 2262 2263 /(?>a*)*/ 2264 a 2265 aaabcde 2266 2267 /((?>a*))*/ 2268 aaaaa 2269 aabbaa 2270 2271 /((?>a*?))*/ 2272 aaaaa 2273 aabbaa 2274 2275 /(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /x 2276 12-sep-98 2277 12-09-98 2278 *** Failers 2279 sep-12-98 2280 2281 /(?<=(foo))bar\1/ 2282 foobarfoo 2283 foobarfootling 2284 *** Failers 2285 foobar 2286 barfoo 2287 2288 /(?i:saturday|sunday)/ 2289 saturday 2290 sunday 2291 Saturday 2292 Sunday 2293 SATURDAY 2294 SUNDAY 2295 SunDay 2296 2297 /(a(?i)bc|BB)x/ 2298 abcx 2299 aBCx 2300 bbx 2301 BBx 2302 *** Failers 2303 abcX 2304 aBCX 2305 bbX 2306 BBX 2307 2308 /^([ab](?i)[cd]|[ef])/ 2309 ac 2310 aC 2311 bD 2312 elephant 2313 Europe 2314 frog 2315 France 2316 *** Failers 2317 Africa 2318 2319 /^(ab|a(?i)[b-c](?m-i)d|x(?i)y|z)/ 2320 ab 2321 aBd 2322 xy 2323 xY 2324 zebra 2325 Zambesi 2326 *** Failers 2327 aCD 2328 XY 2329 2330 /(?<=foo\n)^bar/m 2331 foo\nbar 2332 *** Failers 2333 bar 2334 baz\nbar 2335 2336 /(?<=(?<!foo)bar)baz/ 2337 barbaz 2338 barbarbaz 2339 koobarbaz 2340 *** Failers 2341 baz 2342 foobarbaz 2343 2344 /The cases of aaaa and aaaaaa are missed out below because Perl does things/ 2345 /differently. We know that odd, and maybe incorrect, things happen with/ 2346 /recursive references in Perl, as far as 5.11.3 - see some stuff in test #2./ 2347 2348 /^(a\1?){4}$/ 2349 a 2350 aa 2351 aaa 2352 aaaaa 2353 aaaaaaa 2354 aaaaaaaa 2355 aaaaaaaaa 2356 aaaaaaaaaa 2357 aaaaaaaaaaa 2358 aaaaaaaaaaaa 2359 aaaaaaaaaaaaa 2360 aaaaaaaaaaaaaa 2361 aaaaaaaaaaaaaaa 2362 aaaaaaaaaaaaaaaa 2363 2364 /^(a\1?)(a\1?)(a\2?)(a\3?)$/ 2365 a 2366 aa 2367 aaa 2368 aaaa 2369 aaaaa 2370 aaaaaa 2371 aaaaaaa 2372 aaaaaaaa 2373 aaaaaaaaa 2374 aaaaaaaaaa 2375 aaaaaaaaaaa 2376 aaaaaaaaaaaa 2377 aaaaaaaaaaaaa 2378 aaaaaaaaaaaaaa 2379 aaaaaaaaaaaaaaa 2380 aaaaaaaaaaaaaaaa 2381 2382 /The following tests are taken from the Perl 5.005 test suite; some of them/ 2383 /are compatible with 5.004, but I'd rather not have to sort them out./ 2384 2385 /abc/ 2386 abc 2387 xabcy 2388 ababc 2389 *** Failers 2390 xbc 2391 axc 2392 abx 2393 2394 /ab*c/ 2395 abc 2396 2397 /ab*bc/ 2398 abc 2399 abbc 2400 abbbbc 2401 2402 /.{1}/ 2403 abbbbc 2404 2405 /.{3,4}/ 2406 abbbbc 2407 2408 /ab{0,}bc/ 2409 abbbbc 2410 2411 /ab+bc/ 2412 abbc 2413 *** Failers 2414 abc 2415 abq 2416 2417 /ab{1,}bc/ 2418 2419 /ab+bc/ 2420 abbbbc 2421 2422 /ab{1,}bc/ 2423 abbbbc 2424 2425 /ab{1,3}bc/ 2426 abbbbc 2427 2428 /ab{3,4}bc/ 2429 abbbbc 2430 2431 /ab{4,5}bc/ 2432 *** Failers 2433 abq 2434 abbbbc 2435 2436 /ab?bc/ 2437 abbc 2438 abc 2439 2440 /ab{0,1}bc/ 2441 abc 2442 2443 /ab?bc/ 2444 2445 /ab?c/ 2446 abc 2447 2448 /ab{0,1}c/ 2449 abc 2450 2451 /^abc$/ 2452 abc 2453 *** Failers 2454 abbbbc 2455 abcc 2456 2457 /^abc/ 2458 abcc 2459 2460 /^abc$/ 2461 2462 /abc$/ 2463 aabc 2464 *** Failers 2465 aabc 2466 aabcd 2467 2468 /^/ 2469 abc 2470 2471 /$/ 2472 abc 2473 2474 /a.c/ 2475 abc 2476 axc 2477 2478 /a.*c/ 2479 axyzc 2480 2481 /a[bc]d/ 2482 abd 2483 *** Failers 2484 axyzd 2485 abc 2486 2487 /a[b-d]e/ 2488 ace 2489 2490 /a[b-d]/ 2491 aac 2492 2493 /a[-b]/ 2494 a- 2495 2496 /a[b-]/ 2497 a- 2498 2499 /a]/ 2500 a] 2501 2502 /a[]]b/ 2503 a]b 2504 2505 /a[^bc]d/ 2506 aed 2507 *** Failers 2508 abd 2509 abd 2510 2511 /a[^-b]c/ 2512 adc 2513 2514 /a[^]b]c/ 2515 adc 2516 *** Failers 2517 a-c 2518 a]c 2519 2520 /\ba\b/ 2521 a- 2522 -a 2523 -a- 2524 2525 /\by\b/ 2526 *** Failers 2527 xy 2528 yz 2529 xyz 2530 2531 /\Ba\B/ 2532 *** Failers 2533 a- 2534 -a 2535 -a- 2536 2537 /\By\b/ 2538 xy 2539 2540 /\by\B/ 2541 yz 2542 2543 /\By\B/ 2544 xyz 2545 2546 /\w/ 2547 a 2548 2549 /\W/ 2550 - 2551 *** Failers 2552 - 2553 a 2554 2555 /a\sb/ 2556 a b 2557 2558 /a\Sb/ 2559 a-b 2560 *** Failers 2561 a-b 2562 a b 2563 2564 /\d/ 2565 1 2566 2567 /\D/ 2568 - 2569 *** Failers 2570 - 2571 1 2572 2573 /[\w]/ 2574 a 2575 2576 /[\W]/ 2577 - 2578 *** Failers 2579 - 2580 a 2581 2582 /a[\s]b/ 2583 a b 2584 2585 /a[\S]b/ 2586 a-b 2587 *** Failers 2588 a-b 2589 a b 2590 2591 /[\d]/ 2592 1 2593 2594 /[\D]/ 2595 - 2596 *** Failers 2597 - 2598 1 2599 2600 /ab|cd/ 2601 abc 2602 abcd 2603 2604 /()ef/ 2605 def 2606 2607 /$b/ 2608 2609 /a\(b/ 2610 a(b 2611 2612 /a\(*b/ 2613 ab 2614 a((b 2615 2616 /a\\b/ 2617 a\b 2618 2619 /((a))/ 2620 abc 2621 2622 /(a)b(c)/ 2623 abc 2624 2625 /a+b+c/ 2626 aabbabc 2627 2628 /a{1,}b{1,}c/ 2629 aabbabc 2630 2631 /a.+?c/ 2632 abcabc 2633 2634 /(a+|b)*/ 2635 ab 2636 2637 /(a+|b){0,}/ 2638 ab 2639 2640 /(a+|b)+/ 2641 ab 2642 2643 /(a+|b){1,}/ 2644 ab 2645 2646 /(a+|b)?/ 2647 ab 2648 2649 /(a+|b){0,1}/ 2650 ab 2651 2652 /[^ab]*/ 2653 cde 2654 2655 /abc/ 2656 *** Failers 2657 b 2658 2659 2660 /a*/ 2661 2662 2663 /([abc])*d/ 2664 abbbcd 2665 2666 /([abc])*bcd/ 2667 abcd 2668 2669 /a|b|c|d|e/ 2670 e 2671 2672 /(a|b|c|d|e)f/ 2673 ef 2674 2675 /abcd*efg/ 2676 abcdefg 2677 2678 /ab*/ 2679 xabyabbbz 2680 xayabbbz 2681 2682 /(ab|cd)e/ 2683 abcde 2684 2685 /[abhgefdc]ij/ 2686 hij 2687 2688 /^(ab|cd)e/ 2689 2690 /(abc|)ef/ 2691 abcdef 2692 2693 /(a|b)c*d/ 2694 abcd 2695 2696 /(ab|ab*)bc/ 2697 abc 2698 2699 /a([bc]*)c*/ 2700 abc 2701 2702 /a([bc]*)(c*d)/ 2703 abcd 2704 2705 /a([bc]+)(c*d)/ 2706 abcd 2707 2708 /a([bc]*)(c+d)/ 2709 abcd 2710 2711 /a[bcd]*dcdcde/ 2712 adcdcde 2713 2714 /a[bcd]+dcdcde/ 2715 *** Failers 2716 abcde 2717 adcdcde 2718 2719 /(ab|a)b*c/ 2720 abc 2721 2722 /((a)(b)c)(d)/ 2723 abcd 2724 2725 /[a-zA-Z_][a-zA-Z0-9_]*/ 2726 alpha 2727 2728 /^a(bc+|b[eh])g|.h$/ 2729 abh 2730 2731 /(bc+d$|ef*g.|h?i(j|k))/ 2732 effgz 2733 ij 2734 reffgz 2735 *** Failers 2736 effg 2737 bcdd 2738 2739 /((((((((((a))))))))))/ 2740 a 2741 2742 /((((((((((a))))))))))\10/ 2743 aa 2744 2745 /(((((((((a)))))))))/ 2746 a 2747 2748 /multiple words of text/ 2749 *** Failers 2750 aa 2751 uh-uh 2752 2753 /multiple words/ 2754 multiple words, yeah 2755 2756 /(.*)c(.*)/ 2757 abcde 2758 2759 /\((.*), (.*)\)/ 2760 (a, b) 2761 2762 /[k]/ 2763 2764 /abcd/ 2765 abcd 2766 2767 /a(bc)d/ 2768 abcd 2769 2770 /a[-]?c/ 2771 ac 2772 2773 /(abc)\1/ 2774 abcabc 2775 2776 /([a-c]*)\1/ 2777 abcabc 2778 2779 /(a)|\1/ 2780 a 2781 *** Failers 2782 ab 2783 x 2784 2785 /(([a-c])b*?\2)*/ 2786 ababbbcbc 2787 2788 /(([a-c])b*?\2){3}/ 2789 ababbbcbc 2790 2791 /((\3|b)\2(a)x)+/ 2792 aaaxabaxbaaxbbax 2793 2794 /((\3|b)\2(a)){2,}/ 2795 bbaababbabaaaaabbaaaabba 2796 2797 /abc/i 2798 ABC 2799 XABCY 2800 ABABC 2801 *** Failers 2802 aaxabxbaxbbx 2803 XBC 2804 AXC 2805 ABX 2806 2807 /ab*c/i 2808 ABC 2809 2810 /ab*bc/i 2811 ABC 2812 ABBC 2813 2814 /ab*?bc/i 2815 ABBBBC 2816 2817 /ab{0,}?bc/i 2818 ABBBBC 2819 2820 /ab+?bc/i 2821 ABBC 2822 2823 /ab+bc/i 2824 *** Failers 2825 ABC 2826 ABQ 2827 2828 /ab{1,}bc/i 2829 2830 /ab+bc/i 2831 ABBBBC 2832 2833 /ab{1,}?bc/i 2834 ABBBBC 2835 2836 /ab{1,3}?bc/i 2837 ABBBBC 2838 2839 /ab{3,4}?bc/i 2840 ABBBBC 2841 2842 /ab{4,5}?bc/i 2843 *** Failers 2844 ABQ 2845 ABBBBC 2846 2847 /ab??bc/i 2848 ABBC 2849 ABC 2850 2851 /ab{0,1}?bc/i 2852 ABC 2853 2854 /ab??bc/i 2855 2856 /ab??c/i 2857 ABC 2858 2859 /ab{0,1}?c/i 2860 ABC 2861 2862 /^abc$/i 2863 ABC 2864 *** Failers 2865 ABBBBC 2866 ABCC 2867 2868 /^abc/i 2869 ABCC 2870 2871 /^abc$/i 2872 2873 /abc$/i 2874 AABC 2875 2876 /^/i 2877 ABC 2878 2879 /$/i 2880 ABC 2881 2882 /a.c/i 2883 ABC 2884 AXC 2885 2886 /a.*?c/i 2887 AXYZC 2888 2889 /a.*c/i 2890 *** Failers 2891 AABC 2892 AXYZD 2893 2894 /a[bc]d/i 2895 ABD 2896 2897 /a[b-d]e/i 2898 ACE 2899 *** Failers 2900 ABC 2901 ABD 2902 2903 /a[b-d]/i 2904 AAC 2905 2906 /a[-b]/i 2907 A- 2908 2909 /a[b-]/i 2910 A- 2911 2912 /a]/i 2913 A] 2914 2915 /a[]]b/i 2916 A]B 2917 2918 /a[^bc]d/i 2919 AED 2920 2921 /a[^-b]c/i 2922 ADC 2923 *** Failers 2924 ABD 2925 A-C 2926 2927 /a[^]b]c/i 2928 ADC 2929 2930 /ab|cd/i 2931 ABC 2932 ABCD 2933 2934 /()ef/i 2935 DEF 2936 2937 /$b/i 2938 *** Failers 2939 A]C 2940 B 2941 2942 /a\(b/i 2943 A(B 2944 2945 /a\(*b/i 2946 AB 2947 A((B 2948 2949 /a\\b/i 2950 A\B 2951 2952 /((a))/i 2953 ABC 2954 2955 /(a)b(c)/i 2956 ABC 2957 2958 /a+b+c/i 2959 AABBABC 2960 2961 /a{1,}b{1,}c/i 2962 AABBABC 2963 2964 /a.+?c/i 2965 ABCABC 2966 2967 /a.*?c/i 2968 ABCABC 2969 2970 /a.{0,5}?c/i 2971 ABCABC 2972 2973 /(a+|b)*/i 2974 AB 2975 2976 /(a+|b){0,}/i 2977 AB 2978 2979 /(a+|b)+/i 2980 AB 2981 2982 /(a+|b){1,}/i 2983 AB 2984 2985 /(a+|b)?/i 2986 AB 2987 2988 /(a+|b){0,1}/i 2989 AB 2990 2991 /(a+|b){0,1}?/i 2992 AB 2993 2994 /[^ab]*/i 2995 CDE 2996 2997 /abc/i 2998 2999 /a*/i 3000 3001 3002 /([abc])*d/i 3003 ABBBCD 3004 3005 /([abc])*bcd/i 3006 ABCD 3007 3008 /a|b|c|d|e/i 3009 E 3010 3011 /(a|b|c|d|e)f/i 3012 EF 3013 3014 /abcd*efg/i 3015 ABCDEFG 3016 3017 /ab*/i 3018 XABYABBBZ 3019 XAYABBBZ 3020 3021 /(ab|cd)e/i 3022 ABCDE 3023 3024 /[abhgefdc]ij/i 3025 HIJ 3026 3027 /^(ab|cd)e/i 3028 ABCDE 3029 3030 /(abc|)ef/i 3031 ABCDEF 3032 3033 /(a|b)c*d/i 3034 ABCD 3035 3036 /(ab|ab*)bc/i 3037 ABC 3038 3039 /a([bc]*)c*/i 3040 ABC 3041 3042 /a([bc]*)(c*d)/i 3043 ABCD 3044 3045 /a([bc]+)(c*d)/i 3046 ABCD 3047 3048 /a([bc]*)(c+d)/i 3049 ABCD 3050 3051 /a[bcd]*dcdcde/i 3052 ADCDCDE 3053 3054 /a[bcd]+dcdcde/i 3055 3056 /(ab|a)b*c/i 3057 ABC 3058 3059 /((a)(b)c)(d)/i 3060 ABCD 3061 3062 /[a-zA-Z_][a-zA-Z0-9_]*/i 3063 ALPHA 3064 3065 /^a(bc+|b[eh])g|.h$/i 3066 ABH 3067 3068 /(bc+d$|ef*g.|h?i(j|k))/i 3069 EFFGZ 3070 IJ 3071 REFFGZ 3072 *** Failers 3073 ADCDCDE 3074 EFFG 3075 BCDD 3076 3077 /((((((((((a))))))))))/i 3078 A 3079 3080 /((((((((((a))))))))))\10/i 3081 AA 3082 3083 /(((((((((a)))))))))/i 3084 A 3085 3086 /(?:(?:(?:(?:(?:(?:(?:(?:(?:(a))))))))))/i 3087 A 3088 3089 /(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/i 3090 C 3091 3092 /multiple words of text/i 3093 *** Failers 3094 AA 3095 UH-UH 3096 3097 /multiple words/i 3098 MULTIPLE WORDS, YEAH 3099 3100 /(.*)c(.*)/i 3101 ABCDE 3102 3103 /\((.*), (.*)\)/i 3104 (A, B) 3105 3106 /[k]/i 3107 3108 /abcd/i 3109 ABCD 3110 3111 /a(bc)d/i 3112 ABCD 3113 3114 /a[-]?c/i 3115 AC 3116 3117 /(abc)\1/i 3118 ABCABC 3119 3120 /([a-c]*)\1/i 3121 ABCABC 3122 3123 /a(?!b)./ 3124 abad 3125 3126 /a(?=d)./ 3127 abad 3128 3129 /a(?=c|d)./ 3130 abad 3131 3132 /a(?:b|c|d)(.)/ 3133 ace 3134 3135 /a(?:b|c|d)*(.)/ 3136 ace 3137 3138 /a(?:b|c|d)+?(.)/ 3139 ace 3140 acdbcdbe 3141 3142 /a(?:b|c|d)+(.)/ 3143 acdbcdbe 3144 3145 /a(?:b|c|d){2}(.)/ 3146 acdbcdbe 3147 3148 /a(?:b|c|d){4,5}(.)/ 3149 acdbcdbe 3150 3151 /a(?:b|c|d){4,5}?(.)/ 3152 acdbcdbe 3153 3154 /((foo)|(bar))*/ 3155 foobar 3156 3157 /a(?:b|c|d){6,7}(.)/ 3158 acdbcdbe 3159 3160 /a(?:b|c|d){6,7}?(.)/ 3161 acdbcdbe 3162 3163 /a(?:b|c|d){5,6}(.)/ 3164 acdbcdbe 3165 3166 /a(?:b|c|d){5,6}?(.)/ 3167 acdbcdbe 3168 3169 /a(?:b|c|d){5,7}(.)/ 3170 acdbcdbe 3171 3172 /a(?:b|c|d){5,7}?(.)/ 3173 acdbcdbe 3174 3175 /a(?:b|(c|e){1,2}?|d)+?(.)/ 3176 ace 3177 3178 /^(.+)?B/ 3179 AB 3180 3181 /^([^a-z])|(\^)$/ 3182 . 3183 3184 /^[<>]&/ 3185 <&OUT 3186 3187 /^(a\1?){4}$/ 3188 aaaaaaaaaa 3189 *** Failers 3190 AB 3191 aaaaaaaaa 3192 aaaaaaaaaaa 3193 3194 /^(a(?(1)\1)){4}$/ 3195 aaaaaaaaaa 3196 *** Failers 3197 aaaaaaaaa 3198 aaaaaaaaaaa 3199 3200 /(?:(f)(o)(o)|(b)(a)(r))*/ 3201 foobar 3202 3203 /(?<=a)b/ 3204 ab 3205 *** Failers 3206 cb 3207 b 3208 3209 /(?<!c)b/ 3210 ab 3211 b 3212 b 3213 3214 /(?:..)*a/ 3215 aba 3216 3217 /(?:..)*?a/ 3218 aba 3219 3220 /^(?:b|a(?=(.)))*\1/ 3221 abc 3222 3223 /^(){3,5}/ 3224 abc 3225 3226 /^(a+)*ax/ 3227 aax 3228 3229 /^((a|b)+)*ax/ 3230 aax 3231 3232 /^((a|bc)+)*ax/ 3233 aax 3234 3235 /(a|x)*ab/ 3236 cab 3237 3238 /(a)*ab/ 3239 cab 3240 3241 /(?:(?i)a)b/ 3242 ab 3243 3244 /((?i)a)b/ 3245 ab 3246 3247 /(?:(?i)a)b/ 3248 Ab 3249 3250 /((?i)a)b/ 3251 Ab 3252 3253 /(?:(?i)a)b/ 3254 *** Failers 3255 cb 3256 aB 3257 3258 /((?i)a)b/ 3259 3260 /(?i:a)b/ 3261 ab 3262 3263 /((?i:a))b/ 3264 ab 3265 3266 /(?i:a)b/ 3267 Ab 3268 3269 /((?i:a))b/ 3270 Ab 3271 3272 /(?i:a)b/ 3273 *** Failers 3274 aB 3275 aB 3276 3277 /((?i:a))b/ 3278 3279 /(?:(?-i)a)b/i 3280 ab 3281 3282 /((?-i)a)b/i 3283 ab 3284 3285 /(?:(?-i)a)b/i 3286 aB 3287 3288 /((?-i)a)b/i 3289 aB 3290 3291 /(?:(?-i)a)b/i 3292 *** Failers 3293 aB 3294 Ab 3295 3296 /((?-i)a)b/i 3297 3298 /(?:(?-i)a)b/i 3299 aB 3300 3301 /((?-i)a)b/i 3302 aB 3303 3304 /(?:(?-i)a)b/i 3305 *** Failers 3306 Ab 3307 AB 3308 3309 /((?-i)a)b/i 3310 3311 /(?-i:a)b/i 3312 ab 3313 3314 /((?-i:a))b/i 3315 ab 3316 3317 /(?-i:a)b/i 3318 aB 3319 3320 /((?-i:a))b/i 3321 aB 3322 3323 /(?-i:a)b/i 3324 *** Failers 3325 AB 3326 Ab 3327 3328 /((?-i:a))b/i 3329 3330 /(?-i:a)b/i 3331 aB 3332 3333 /((?-i:a))b/i 3334 aB 3335 3336 /(?-i:a)b/i 3337 *** Failers 3338 Ab 3339 AB 3340 3341 /((?-i:a))b/i 3342 3343 /((?-i:a.))b/i 3344 *** Failers 3345 AB 3346 a\nB 3347 3348 /((?s-i:a.))b/i 3349 a\nB 3350 3351 /(?:c|d)(?:)(?:a(?:)(?:b)(?:b(?:))(?:b(?:)(?:b)))/ 3352 cabbbb 3353 3354 /(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/ 3355 caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 3356 3357 /(ab)\d\1/i 3358 Ab4ab 3359 ab4Ab 3360 3361 /foo\w*\d{4}baz/ 3362 foobar1234baz 3363 3364 /x(~~)*(?:(?:F)?)?/ 3365 x~~ 3366 3367 /^a(?#xxx){3}c/ 3368 aaac 3369 3370 /^a (?#xxx) (?#yyy) {3}c/x 3371 aaac 3372 3373 /(?<![cd])b/ 3374 *** Failers 3375 B\nB 3376 dbcb 3377 3378 /(?<![cd])[ab]/ 3379 dbaacb 3380 3381 /(?<!(c|d))b/ 3382 3383 /(?<!(c|d))[ab]/ 3384 dbaacb 3385 3386 /(?<!cd)[ab]/ 3387 cdaccb 3388 3389 /^(?:a?b?)*$/ 3390 \ 3391 a 3392 ab 3393 aaa 3394 *** Failers 3395 dbcb 3396 a-- 3397 aa-- 3398 3399 /((?s)^a(.))((?m)^b$)/ 3400 a\nb\nc\n 3401 3402 /((?m)^b$)/ 3403 a\nb\nc\n 3404 3405 /(?m)^b/ 3406 a\nb\n 3407 3408 /(?m)^(b)/ 3409 a\nb\n 3410 3411 /((?m)^b)/ 3412 a\nb\n 3413 3414 /\n((?m)^b)/ 3415 a\nb\n 3416 3417 /((?s).)c(?!.)/ 3418 a\nb\nc\n 3419 a\nb\nc\n 3420 3421 /((?s)b.)c(?!.)/ 3422 a\nb\nc\n 3423 a\nb\nc\n 3424 3425 /^b/ 3426 3427 /()^b/ 3428 *** Failers 3429 a\nb\nc\n 3430 a\nb\nc\n 3431 3432 /((?m)^b)/ 3433 a\nb\nc\n 3434 3435 /(x)?(?(1)a|b)/ 3436 *** Failers 3437 a 3438 a 3439 3440 /(x)?(?(1)b|a)/ 3441 a 3442 3443 /()?(?(1)b|a)/ 3444 a 3445 3446 /()(?(1)b|a)/ 3447 3448 /()?(?(1)a|b)/ 3449 a 3450 3451 /^(\()?blah(?(1)(\)))$/ 3452 (blah) 3453 blah 3454 *** Failers 3455 a 3456 blah) 3457 (blah 3458 3459 /^(\(+)?blah(?(1)(\)))$/ 3460 (blah) 3461 blah 3462 *** Failers 3463 blah) 3464 (blah 3465 3466 /(?(?!a)a|b)/ 3467 3468 /(?(?!a)b|a)/ 3469 a 3470 3471 /(?(?=a)b|a)/ 3472 *** Failers 3473 a 3474 a 3475 3476 /(?(?=a)a|b)/ 3477 a 3478 3479 /(?=(a+?))(\1ab)/ 3480 aaab 3481 3482 /^(?=(a+?))\1ab/ 3483 3484 /(\w+:)+/ 3485 one: 3486 3487 /$(?<=^(a))/ 3488 a 3489 3490 /(?=(a+?))(\1ab)/ 3491 aaab 3492 3493 /^(?=(a+?))\1ab/ 3494 *** Failers 3495 aaab 3496 aaab 3497 3498 /([\w:]+::)?(\w+)$/ 3499 abcd 3500 xy:z:::abcd 3501 3502 /^[^bcd]*(c+)/ 3503 aexycd 3504 3505 /(a*)b+/ 3506 caab 3507 3508 /([\w:]+::)?(\w+)$/ 3509 abcd 3510 xy:z:::abcd 3511 *** Failers 3512 abcd: 3513 abcd: 3514 3515 /^[^bcd]*(c+)/ 3516 aexycd 3517 3518 /(>a+)ab/ 3519 3520 /(?>a+)b/ 3521 aaab 3522 3523 /([[:]+)/ 3524 a:[b]: 3525 3526 /([[=]+)/ 3527 a=[b]= 3528 3529 /([[.]+)/ 3530 a.[b]. 3531 3532 /((?>a+)b)/ 3533 aaab 3534 3535 /(?>(a+))b/ 3536 aaab 3537 3538 /((?>[^()]+)|\([^()]*\))+/ 3539 ((abc(ade)ufh()()x 3540 3541 /a\Z/ 3542 *** Failers 3543 aaab 3544 a\nb\n 3545 3546 /b\Z/ 3547 a\nb\n 3548 3549 /b\z/ 3550 3551 /b\Z/ 3552 a\nb 3553 3554 /b\z/ 3555 a\nb 3556 *** Failers 3557 3558 /^(?>(?(1)\.|())[^\W_](?>[a-z0-9-]*[^\W_])?)+$/ 3559 a 3560 abc 3561 a-b 3562 0-9 3563 a.b 3564 5.6.7 3565 the.quick.brown.fox 3566 a100.b200.300c 3567 12-ab.1245 3568 *** Failers 3569 \ 3570 .a 3571 -a 3572 a- 3573 a. 3574 a_b 3575 a.- 3576 a.. 3577 ab..bc 3578 the.quick.brown.fox- 3579 the.quick.brown.fox. 3580 the.quick.brown.fox_ 3581 the.quick.brown.fox+ 3582 3583 /(?>.*)(?<=(abcd|wxyz))/ 3584 alphabetabcd 3585 endingwxyz 3586 *** Failers 3587 a rather long string that doesn't end with one of them 3588 3589 /word (?>(?:(?!otherword)[a-zA-Z0-9]+ ){0,30})otherword/ 3590 word cat dog elephant mussel cow horse canary baboon snake shark otherword 3591 word cat dog elephant mussel cow horse canary baboon snake shark 3592 3593 /word (?>[a-zA-Z0-9]+ ){0,30}otherword/ 3594 word cat dog elephant mussel cow horse canary baboon snake shark the quick brown fox and the lazy dog and several other words getting close to thirty by now I hope 3595 3596 /(?<=\d{3}(?!999))foo/ 3597 999foo 3598 123999foo 3599 *** Failers 3600 123abcfoo 3601 3602 /(?<=(?!...999)\d{3})foo/ 3603 999foo 3604 123999foo 3605 *** Failers 3606 123abcfoo 3607 3608 /(?<=\d{3}(?!999)...)foo/ 3609 123abcfoo 3610 123456foo 3611 *** Failers 3612 123999foo 3613 3614 /(?<=\d{3}...)(?<!999)foo/ 3615 123abcfoo 3616 123456foo 3617 *** Failers 3618 123999foo 3619 3620 /<a[\s]+href[\s]*=[\s]* # find <a href= 3621 ([\"\'])? # find single or double quote 3622 (?(1) (.*?)\1 | ([^\s]+)) # if quote found, match up to next matching 3623 # quote, otherwise match up to next space 3624 /isx 3625 <a href=abcd xyz 3626 <a href=\"abcd xyz pqr\" cats 3627 <a href=\'abcd xyz pqr\' cats 3628 3629 /<a\s+href\s*=\s* # find <a href= 3630 (["'])? # find single or double quote 3631 (?(1) (.*?)\1 | (\S+)) # if quote found, match up to next matching 3632 # quote, otherwise match up to next space 3633 /isx 3634 <a href=abcd xyz 3635 <a href=\"abcd xyz pqr\" cats 3636 <a href = \'abcd xyz pqr\' cats 3637 3638 /<a\s+href(?>\s*)=(?>\s*) # find <a href= 3639 (["'])? # find single or double quote 3640 (?(1) (.*?)\1 | (\S+)) # if quote found, match up to next matching 3641 # quote, otherwise match up to next space 3642 /isx 3643 <a href=abcd xyz 3644 <a href=\"abcd xyz pqr\" cats 3645 <a href = \'abcd xyz pqr\' cats 3646 3647 /((Z)+|A)*/ 3648 ZABCDEFG 3649 3650 /(Z()|A)*/ 3651 ZABCDEFG 3652 3653 /(Z(())|A)*/ 3654 ZABCDEFG 3655 3656 /((?>Z)+|A)*/ 3657 ZABCDEFG 3658 3659 /((?>)+|A)*/ 3660 ZABCDEFG 3661 3662 /a*/g 3663 abbab 3664 3665 /^[\d-a]/ 3666 abcde 3667 -things 3668 0digit 3669 *** Failers 3670 bcdef 3671 3672 /[[:space:]]+/ 3673 > \x09\x0a\x0c\x0d\x0b< 3674 3675 /[[:blank:]]+/ 3676 > \x09\x0a\x0c\x0d\x0b< 3677 3678 /[\s]+/ 3679 > \x09\x0a\x0c\x0d\x0b< 3680 3681 /\s+/ 3682 > \x09\x0a\x0c\x0d\x0b< 3683 3684 /ab/x 3686 ab 3687 3688 /(?!\A)x/m 3689 a\nxb\n 3690 3691 /(?!^)x/m 3692 a\nxb\n 3693 3694 /abc\Qabc\Eabc/ 3695 abcabcabc 3696 3697 /abc\Q(*+|\Eabc/ 3698 abc(*+|abc 3699 3700 / abc\Q abc\Eabc/x 3701 abc abcabc 3702 *** Failers 3703 abcabcabc 3704 3705 /abc#comment 3706 \Q#not comment 3707 literal\E/x 3708 abc#not comment\n literal 3709 3710 /abc#comment 3711 \Q#not comment 3712 literal/x 3713 abc#not comment\n literal 3714 3715 /abc#comment 3716 \Q#not comment 3717 literal\E #more comment 3718 /x 3719 abc#not comment\n literal 3720 3721 /abc#comment 3722 \Q#not comment 3723 literal\E #more comment/x 3724 abc#not comment\n literal 3725 3726 /\Qabc\$xyz\E/ 3727 abc\\\$xyz 3728 3729 /\Qabc\E\$\Qxyz\E/ 3730 abc\$xyz 3731 3732 /\Gabc/ 3733 abc 3734 *** Failers 3735 xyzabc 3736 3737 /\Gabc./g 3738 abc1abc2xyzabc3 3739 3740 /abc./g 3741 abc1abc2xyzabc3 3742 3743 /a(?x: b c )d/ 3744 XabcdY 3745 *** Failers 3746 Xa b c d Y 3747 3748 /((?x)x y z | a b c)/ 3749 XabcY 3750 AxyzB 3751 3752 /(?i)AB(?-i)C/ 3753 XabCY 3754 *** Failers 3755 XabcY 3756 3757 /((?i)AB(?-i)C|D)E/ 3758 abCE 3759 DE 3760 *** Failers 3761 abcE 3762 abCe 3763 dE 3764 De 3765 3766 /(.*)\d+\1/ 3767 abc123abc 3768 abc123bc 3769 3770 /(.*)\d+\1/s 3771 abc123abc 3772 abc123bc 3773 3774 /((.*))\d+\1/ 3775 abc123abc 3776 abc123bc 3777 3778 /-- This tests for an IPv6 address in the form where it can have up to 3779 eight components, one and only one of which is empty. This must be 3780 an internal component. --/ 3781 3782 /^(?!:) # colon disallowed at start 3783 (?: # start of item 3784 (?: [0-9a-f]{1,4} | # 1-4 hex digits or 3785 (?(1)0 | () ) ) # if null previously matched, fail; else null 3786 : # followed by colon 3787 ){1,7} # end item; 1-7 of them required 3788 [0-9a-f]{1,4} $ # final hex number at end of string 3789 (?(1)|.) # check that there was an empty component 3790 /xi 3791 a123::a123 3792 a123:b342::abcd 3793 a123:b342::324e:abcd 3794 a123:ddde:b342::324e:abcd 3795 a123:ddde:b342::324e:dcba:abcd 3796 a123:ddde:9999:b342::324e:dcba:abcd 3797 *** Failers 3798 1:2:3:4:5:6:7:8 3799 a123:bce:ddde:9999:b342::324e:dcba:abcd 3800 a123::9999:b342::324e:dcba:abcd 3801 abcde:2:3:4:5:6:7:8 3802 ::1 3803 abcd:fee0:123:: 3804 :1 3805 1: 3806 3807 /[z\Qa-d]\E]/ 3808 z 3809 a 3810 - 3811 d 3812 ] 3813 *** Failers 3814 b 3815 3816 /[\z\C]/ 3817 z 3818 C 3819 3820 /\M/ 3821 M 3822 3823 /(a+)*b/ 3824 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 3825 3826 /(?i)reg(?:ul(?:[a]|ae)r|ex)/ 3827 REGular 3828 regulaer 3829 Regex 3830 regulr 3831 3832 /[--]+/ 3833 3834 3835 3836 3837 3838 /(?<=Z)X./ 3839 \x84XAZXB 3840 3841 /ab cd (?x) de fg/ 3842 ab cd defg 3843 3844 /ab cd(?x) de fg/ 3845 ab cddefg 3846 ** Failers 3847 abcddefg 3848 3849 /(?<![^f]oo)(bar)/ 3850 foobarX 3851 ** Failers 3852 boobarX 3853 3854 /(?<![^f])X/ 3855 offX 3856 ** Failers 3857 onyX 3858 3859 /(?<=[^f])X/ 3860 onyX 3861 ** Failers 3862 offX 3863 3864 /^/mg 3865 a\nb\nc\n 3866 \ 3867 3868 /(?<=C\n)^/mg 3869 A\nC\nC\n 3870 3871 /(?:(?(1)a|b)(X))+/ 3872 bXaX 3873 3874 /(?:(?(1)\1a|b)(X|Y))+/ 3875 bXXaYYaY 3876 bXYaXXaX 3877 3878 /()()()()()()()()()(?:(?(10)\10a|b)(X|Y))+/ 3879 bXXaYYaY 3880 3881 /[[,abc,]+]/ 3882 abc] 3883 a,b] 3884 [a,b,c] 3885 3886 /(?-x: )/x 3887 A\x20B 3888 3889 "(?x)(?-x: \s*#\s*)" 3890 A # B 3891 ** Failers 3892 # 3893 3894 "(?x-is)(?:(?-ixs) \s*#\s*) include" 3895 A #include 3896 ** Failers 3897 A#include 3898 A #Include 3899 3900 /a*b*\w/ 3901 aaabbbb 3902 aaaa 3903 a 3904 3905 /a*b?\w/ 3906 aaabbbb 3907 aaaa 3908 a 3909 3910 /a*b{0,4}\w/ 3911 aaabbbb 3912 aaaa 3913 a 3914 3915 /a*b{0,}\w/ 3916 aaabbbb 3917 aaaa 3918 a 3919 3920 /a*\d*\w/ 3921 0a 3922 a 3923 3924 /a*b *\w/x 3925 a 3926 3927 /a*b#comment 3928 *\w/x 3929 a 3930 3931 /a* b *\w/x 3932 a 3933 3934 /^\w+=.*(\\\n.*)*/ 3935 abc=xyz\\\npqr 3936 3937 /(?=(\w+))\1:/ 3938 abcd: 3939 3940 /^(?=(\w+))\1:/ 3941 abcd: 3942 3943 /^\Eabc/ 3944 abc 3945 3946 /^[\Eabc]/ 3947 a 3948 ** Failers 3949 E 3950 3951 /^[a-\Ec]/ 3952 b 3953 ** Failers 3954 - 3955 E 3956 3957 /^[a\E\E-\Ec]/ 3958 b 3959 ** Failers 3960 - 3961 E 3962 3963 /^[\E\Qa\E-\Qz\E]+/ 3964 b 3965 ** Failers 3966 - 3967 3968 /^[a\Q]bc\E]/ 3969 a 3970 ] 3971 c 3972 3973 /^[a-\Q\E]/ 3974 a 3975 - 3976 3977 /^(a()*)*/ 3978 aaaa 3979 3980 /^(?:a(?:(?:))*)*/ 3981 aaaa 3982 3983 /^(a()+)+/ 3984 aaaa 3985 3986 /^(?:a(?:(?:))+)+/ 3987 aaaa 3988 3989 /(a){0,3}(?(1)b|(c|))*D/ 3990 abbD 3991 ccccD 3992 D 3993 3994 /(a|)*\d/ 3995 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 3996 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 3997 3998 /(?>a|)*\d/ 3999 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 4000 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 4001 4002 /(?:a|)*\d/ 4003 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 4004 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 4005 4006 /\Z/g 4007 abc\n 4008 4009 /^(?s)(?>.*)(?<!\n)/ 4010 abc 4011 abc\n 4012 4013 /^(?![^\n]*\n\z)/ 4014 abc 4015 abc\n 4016 4017 /\z(?<!\n)/ 4018 abc 4019 abc\n 4020 4021 /(.*(.)?)*/ 4022 abcd 4023 4024 /( (A | (?(1)0|) )* )/x 4025 abcd 4026 4027 /( ( (?(1)0|) )* )/x 4028 abcd 4029 4030 /( (?(1)0|)* )/x 4031 abcd 4032 4033 /[[:abcd:xyz]]/ 4034 a] 4035 :] 4036 4037 /[abc[:x\]pqr]/ 4038 a 4039 [ 4040 : 4041 ] 4042 p 4043 4044 /.*[op][xyz]/ 4045 fooabcfoo 4046 4047 /(?(?=.*b)b|^)/ 4048 adc 4049 abc 4050 4051 /(?(?=^.*b)b|^)/ 4052 adc 4053 abc 4054 4055 /(?(?=.*b)b|^)*/ 4056 adc 4057 abc 4058 4059 /(?(?=.*b)b|^)+/ 4060 adc 4061 abc 4062 4063 /(?(?=b).*b|^d)/ 4064 abc 4065 4066 /(?(?=.*b).*b|^d)/ 4067 abc 4068 4069 /^%((?(?=[a])[^%])|b)*%$/ 4070 %ab% 4071 4072 /(?i)a(?-i)b|c/ 4073 XabX 4074 XAbX 4075 CcC 4076 ** Failers 4077 XABX 4078 4079 /[\x00-\xff\s]+/ 4080 \x0a\x0b\x0c\x0d 4081 4082 /^\c/ 4083 ? 4084 4085 /(abc)\1/i 4086 abc 4087 4088 /(abc)\1/ 4089 abc 4090 4091 /[^a]*/i 4092 12abc 4093 12ABC 4094 4095 /[^a]*+/i 4096 12abc 4097 12ABC 4098 4099 /[^a]*?X/i 4100 ** Failers 4101 12abc 4102 12ABC 4103 4104 /[^a]+?X/i 4105 ** Failers 4106 12abc 4107 12ABC 4108 4109 /[^a]?X/i 4110 12aXbcX 4111 12AXBCX 4112 BCX 4113 4114 /[^a]??X/i 4115 12aXbcX 4116 12AXBCX 4117 BCX 4118 4119 /[^a]?+X/i 4120 12aXbcX 4121 12AXBCX 4122 BCX 4123 4124 /[^a]{2,3}/i 4125 abcdef 4126 ABCDEF 4127 4128 /[^a]{2,3}?/i 4129 abcdef 4130 ABCDEF 4131 4132 /[^a]{2,3}+/i 4133 abcdef 4134 ABCDEF 4135 4136 /((a|)+)+Z/ 4137 Z 4138 4139 /(a)b|(a)c/ 4140 ac 4141 4142 /(?>(a))b|(a)c/ 4143 ac 4144 4145 /(?=(a))ab|(a)c/ 4146 ac 4147 4148 /((?>(a))b|(a)c)/ 4149 ac 4150 4151 /((?>(a))b|(a)c)++/ 4152 ac 4153 4154 /(?:(?>(a))b|(a)c)++/ 4155 ac 4156 4157 /(?=(?>(a))b|(a)c)(..)/ 4158 ac 4159 4160 /(?>(?>(a))b|(a)c)/ 4161 ac 4162 4163 /(?:(?>([ab])))+a=/+ 4164 =ba= 4165 4166 /(?>([ab]))+a=/+ 4167 =ba= 4168 4169 /((?>(a+)b)+(aabab))/ 4170 aaaabaaabaabab 4171 4172 /(?>a+|ab)+?c/ 4173 aabc 4174 4175 /(?>a+|ab)+c/ 4176 aabc 4177 4178 /(?:a+|ab)+c/ 4179 aabc 4180 4181 /(?(?=(a))a)/ 4182 a 4183 4184 /(?(?=(a))a)(b)/ 4185 ab 4186 4187 /^(?:a|ab)++c/ 4188 aaaabc 4189 4190 /^(?>a|ab)++c/ 4191 aaaabc 4192 4193 /^(?:a|ab)+c/ 4194 aaaabc 4195 4196 /(?=abc){3}abc/+ 4197 abcabcabc 4198 ** Failers 4199 xyz 4200 4201 /(?=abc)+abc/+ 4202 abcabcabc 4203 ** Failers 4204 xyz 4205 4206 /(?=abc)++abc/+ 4207 abcabcabc 4208 ** Failers 4209 xyz 4210 4211 /(?=abc){0}xyz/ 4212 xyz 4213 4214 /(?=abc){1}xyz/ 4215 ** Failers 4216 xyz 4217 4218 /(?=(a))?./ 4219 ab 4220 bc 4221 4222 /(?=(a))??./ 4223 ab 4224 bc 4225 4226 /^(?=(?1))?[az]([abc])d/ 4227 abd 4228 zcdxx 4229 4230 /^(?!a){0}\w+/ 4231 aaaaa 4232 4233 /(?<=(abc))?xyz/ 4234 abcxyz 4235 pqrxyz 4236 4237 /^[\g<a>]+/ 4238 ggg<<<aaa>>> 4239 ** Failers 4240 \\ga 4241 4242 /^[\ga]+/ 4243 gggagagaxyz 4244 4245 /^[:a[:digit:]]+/ 4246 aaaa444:::Z 4247 4248 /^[:a[:digit:]:b]+/ 4249 aaaa444:::bbbZ 4250 4251 /[:a]xxx[b:]/ 4252 :xxx: 4253 4254 /(?<=a{2})b/i 4255 xaabc 4256 ** Failers 4257 xabc 4258 4259 /(?<!a{2})b/i 4260 xabc 4261 ** Failers 4262 xaabc 4263 4264 /(?<=a\h)c/ 4265 xa c 4266 4267 /(?<=[^a]{2})b/ 4268 axxbc 4269 aAAbc 4270 ** Failers 4271 xaabc 4272 4273 /(?<=[^a]{2})b/i 4274 axxbc 4275 ** Failers 4276 aAAbc 4277 xaabc 4278 4279 /(?<=a\H)c/ 4280 abc 4281 4282 /(?<=a\V)c/ 4283 abc 4284 4285 /(?<=a\v)c/ 4286 a\nc 4287 4288 /(?(?=c)c|d)++Y/ 4289 XcccddYX 4290 4291 /(?(?=c)c|d)*+Y/ 4292 XcccddYX 4293 4294 /^(a{2,3}){2,}+a/ 4295 aaaaaaa 4296 ** Failers 4297 aaaaaa 4298 aaaaaaaaa 4299 4300 /^(a{2,3})++a/ 4301 ** Failers 4302 aaaaaa 4303 4304 /^(a{2,3})*+a/ 4305 ** Failers 4306 aaaaaa 4307 4308 /ab\Cde/ 4309 abXde 4310 4311 /(?<=ab\Cde)X/ 4312 abZdeX 4313 4314 /a[\CD]b/ 4315 aCb 4316 aDb 4317 4318 /a[\C-X]b/ 4319 aJb 4320 4321 /\H\h\V\v/ 4322 X X\x0a 4323 X\x09X\x0b 4324 ** Failers 4325 \xa0 X\x0a 4326 4327 /\H*\h+\V?\v{3,4}/ 4328 \x09\x20\xa0X\x0a\x0b\x0c\x0d\x0a 4329 \x09\x20\xa0\x0a\x0b\x0c\x0d\x0a 4330 \x09\x20\xa0\x0a\x0b\x0c 4331 ** Failers 4332 \x09\x20\xa0\x0a\x0b 4333 4334 /\H{3,4}/ 4335 XY ABCDE 4336 XY PQR ST 4337 4338 /.\h{3,4}./ 4339 XY AB PQRS 4340 4341 /\h*X\h?\H+Y\H?Z/ 4342 >XNNNYZ 4343 > X NYQZ 4344 ** Failers 4345 >XYZ 4346 > X NY Z 4347 4348 /\v*X\v?Y\v+Z\V*\x0a\V+\x0b\V{2,3}\x0c/ 4349 >XY\x0aZ\x0aA\x0bNN\x0c 4350 >\x0a\x0dX\x0aY\x0a\x0bZZZ\x0aAAA\x0bNNN\x0c 4351 4352 /(foo)\Kbar/ 4353 foobar 4354 4355 /(foo)(\Kbar|baz)/ 4356 foobar 4357 foobaz 4358 4359 /(foo\Kbar)baz/ 4360 foobarbaz 4361 4362 /abc\K|def\K/g+ 4363 Xabcdefghi 4364 4365 /ab\Kc|de\Kf/g+ 4366 Xabcdefghi 4367 4368 /(?=C)/g+ 4369 ABCDECBA 4370 4371 /^abc\K/+ 4372 abcdef 4373 ** Failers 4374 defabcxyz 4375 4376 /^(a(b))\1\g1\g{1}\g-1\g{-1}\g{-02}Z/ 4377 ababababbbabZXXXX 4378 4379 /(?<A>tom|bon)-\g{A}/ 4380 tom-tom 4381 bon-bon 4382 4383 /(^(a|b\g{-1}))/ 4384 bacxxx 4385 4386 /(?|(abc)|(xyz))\1/ 4387 abcabc 4388 xyzxyz 4389 ** Failers 4390 abcxyz 4391 xyzabc 4392 4393 /(?|(abc)|(xyz))(?1)/ 4394 abcabc 4395 xyzabc 4396 ** Failers 4397 xyzxyz 4398 4399 /^X(?5)(a)(?|(b)|(q))(c)(d)(Y)/ 4400 XYabcdY 4401 4402 /^X(?7)(a)(?|(b|(r)(s))|(q))(c)(d)(Y)/ 4403 XYabcdY 4404 4405 /^X(?7)(a)(?|(b|(?|(r)|(t))(s))|(q))(c)(d)(Y)/ 4406 XYabcdY 4407 4408 /(?'abc'\w+):\k<abc>{2}/ 4409 a:aaxyz 4410 ab:ababxyz 4411 ** Failers 4412 a:axyz 4413 ab:abxyz 4414 4415 /(?'abc'\w+):\g{abc}{2}/ 4416 a:aaxyz 4417 ab:ababxyz 4418 ** Failers 4419 a:axyz 4420 ab:abxyz 4421 4422 /^(?<ab>a)? (?(<ab>)b|c) (?('ab')d|e)/x 4423 abd 4424 ce 4425 4426 /^(a.)\g-1Z/ 4427 aXaXZ 4428 4429 /^(a.)\g{-1}Z/ 4430 aXaXZ 4431 4432 /^(?(DEFINE) (?<A> a) (?<B> b) ) (?&A) (?&B) /x 4433 abcd 4434 4435 /(?<NAME>(?&NAME_PAT))\s+(?<ADDR>(?&ADDRESS_PAT)) 4436 (?(DEFINE) 4437 (?<NAME_PAT>[a-z]+) 4438 (?<ADDRESS_PAT>\d+) 4439 )/x 4440 metcalfe 33 4441 4442 /(?(DEFINE)(?<byte>2[0-4]\d|25[0-5]|1\d\d|[1-9]?\d))\b(?&byte)(\.(?&byte)){3}/ 4443 1.2.3.4 4444 131.111.10.206 4445 10.0.0.0 4446 ** Failers 4447 10.6 4448 455.3.4.5 4449 4450 /\b(?&byte)(\.(?&byte)){3}(?(DEFINE)(?<byte>2[0-4]\d|25[0-5]|1\d\d|[1-9]?\d))/ 4451 1.2.3.4 4452 131.111.10.206 4453 10.0.0.0 4454 ** Failers 4455 10.6 4456 455.3.4.5 4457 4458 /^(\w++|\s++)*$/ 4459 now is the time for all good men to come to the aid of the party 4460 *** Failers 4461 this is not a line with only words and spaces! 4462 4463 /(\d++)(\w)/ 4464 12345a 4465 *** Failers 4466 12345+ 4467 4468 /a++b/ 4469 aaab 4470 4471 /(a++b)/ 4472 aaab 4473 4474 /(a++)b/ 4475 aaab 4476 4477 /([^()]++|\([^()]*\))+/ 4478 ((abc(ade)ufh()()x 4479 4480 /\(([^()]++|\([^()]+\))+\)/ 4481 (abc) 4482 (abc(def)xyz) 4483 *** Failers 4484 ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 4485 4486 /^([^()]|\((?1)*\))*$/ 4487 abc 4488 a(b)c 4489 a(b(c))d 4490 *** Failers) 4491 a(b(c)d 4492 4493 /^>abc>([^()]|\((?1)*\))*<xyz<$/ 4494 >abc>123<xyz< 4495 >abc>1(2)3<xyz< 4496 >abc>(1(2)3)<xyz< 4497 4498 /^(?:((.)(?1)\2|)|((.)(?3)\4|.))$/i 4499 1221 4500 Satanoscillatemymetallicsonatas 4501 AmanaplanacanalPanama 4502 AblewasIereIsawElba 4503 *** Failers 4504 Thequickbrownfox 4505 4506 /^(\d+|\((?1)([+*-])(?1)\)|-(?1))$/ 4507 12 4508 (((2+2)*-3)-7) 4509 -12 4510 *** Failers 4511 ((2+2)*-3)-7) 4512 4513 /^(x(y|(?1){2})z)/ 4514 xyz 4515 xxyzxyzz 4516 *** Failers 4517 xxyzz 4518 xxyzxyzxyzz 4519 4520 /((< (?: (?(R) \d++ | [^<>]*+) | (?2)) * >))/x 4521 <> 4522 <abcd> 4523 <abc <123> hij> 4524 <abc <def> hij> 4525 <abc<>def> 4526 <abc<> 4527 *** Failers 4528 <abc 4529 4530 /^a+(*FAIL)/ 4531 aaaaaa 4532 4533 /a+b?c+(*FAIL)/ 4534 aaabccc 4535 4536 /a+b?(*PRUNE)c+(*FAIL)/ 4537 aaabccc 4538 4539 /a+b?(*COMMIT)c+(*FAIL)/ 4540 aaabccc 4541 4542 /a+b?(*SKIP)c+(*FAIL)/ 4543 aaabcccaaabccc 4544 4545 /^(?:aaa(*THEN)\w{6}|bbb(*THEN)\w{5}|ccc(*THEN)\w{4}|\w{3})/ 4546 aaaxxxxxx 4547 aaa++++++ 4548 bbbxxxxx 4549 bbb+++++ 4550 cccxxxx 4551 ccc++++ 4552 dddddddd 4553 4554 /^(aaa(*THEN)\w{6}|bbb(*THEN)\w{5}|ccc(*THEN)\w{4}|\w{3})/ 4555 aaaxxxxxx 4556 aaa++++++ 4557 bbbxxxxx 4558 bbb+++++ 4559 cccxxxx 4560 ccc++++ 4561 dddddddd 4562 4563 /a+b?(*THEN)c+(*FAIL)/ 4564 aaabccc 4565 4566 /(A (A|B(*ACCEPT)|C) D)(E)/x 4567 AB 4568 ABX 4569 AADE 4570 ACDE 4571 ** Failers 4572 AD 4573 4574 /^\W*+(?:((.)\W*+(?1)\W*+\2|)|((.)\W*+(?3)\W*+\4|\W*+.\W*+))\W*+$/i 4575 1221 4576 Satan, oscillate my metallic sonatas! 4577 A man, a plan, a canal: Panama! 4578 Able was I ere I saw Elba. 4579 *** Failers 4580 The quick brown fox 4581 4582 /^((.)(?1)\2|.)$/ 4583 a 4584 aba 4585 aabaa 4586 abcdcba 4587 pqaabaaqp 4588 ablewasiereisawelba 4589 rhubarb 4590 the quick brown fox 4591 4592 /(a)(?<=b(?1))/ 4593 baz 4594 ** Failers 4595 caz 4596 4597 /(?<=b(?1))(a)/ 4598 zbaaz 4599 ** Failers 4600 aaa 4601 4602 /(?<X>a)(?<=b(?&X))/ 4603 baz 4604 4605 /^(?|(abc)|(def))\1/ 4606 abcabc 4607 defdef 4608 ** Failers 4609 abcdef 4610 defabc 4611 4612 /^(?|(abc)|(def))(?1)/ 4613 abcabc 4614 defabc 4615 ** Failers 4616 defdef 4617 abcdef 4618 4619 /(?:a(?<quote> (?<apostrophe>')|(?<realquote>")) |b(?<quote> (?<apostrophe>')|(?<realquote>")) ) (?('quote')[a-z]+|[0-9]+)/xJ 4620 a\"aaaaa 4621 b\"aaaaa 4622 ** Failers 4623 b\"11111 4624 4625 /(?:(?1)|B)(A(*F)|C)/ 4626 ABCD 4627 CCD 4628 ** Failers 4629 CAD 4630 4631 /^(?:(?1)|B)(A(*F)|C)/ 4632 CCD 4633 BCD 4634 ** Failers 4635 ABCD 4636 CAD 4637 BAD 4638 4639 /(?:(?1)|B)(A(*ACCEPT)XX|C)D/ 4640 AAD 4641 ACD 4642 BAD 4643 BCD 4644 BAX 4645 ** Failers 4646 ACX 4647 ABC 4648 4649 /(?(DEFINE)(A))B(?1)C/ 4650 BAC 4651 4652 /(?(DEFINE)((A)\2))B(?1)C/ 4653 BAAC 4654 4655 /(?<pn> \( ( [^()]++ | (?&pn) )* \) )/x 4656 (ab(cd)ef) 4657 4658 /^(?=a(*SKIP)b|ac)/ 4659 ** Failers 4660 ac 4661 4662 /^(?=a(*PRUNE)b)/ 4663 ab 4664 ** Failers 4665 ac 4666 4667 /^(?=a(*ACCEPT)b)/ 4668 ac 4669 4670 /(?>a\Kb)/ 4671 ab 4672 4673 /((?>a\Kb))/ 4674 ab 4675 4676 /(a\Kb)/ 4677 ab 4678 4679 /^a\Kcz|ac/ 4680 ac 4681 4682 /(?>a\Kbz|ab)/ 4683 ab 4684 4685 /^(?&t)(?(DEFINE)(?<t>a\Kb))$/ 4686 ab 4687 4688 /^([^()]|\((?1)*\))*$/ 4689 a(b)c 4690 a(b(c)d)e 4691 4692 /(?P<L1>(?P<L2>0)(?P>L1)|(?P>L2))/ 4693 0 4694 00 4695 0000 4696 4697 /(?P<L1>(?P<L2>0)|(?P>L2)(?P>L1))/ 4698 0 4699 00 4700 0000 4701 4702 /--- This one does fail, as expected, in Perl. It needs the complex item at the 4703 end of the pattern. A single letter instead of (B|D) makes it not fail, 4704 which I think is a Perl bug. --- / 4705 4706 /A(*COMMIT)(B|D)/ 4707 ACABX 4708 4709 /--- Check the use of names for failure ---/ 4710 4711 /^(A(*PRUNE:A)B|C(*PRUNE:B)D)/K 4712 ** Failers 4713 AC 4714 CB 4715 4716 /--- Force no study, otherwise mark is not seen. The studied version is in 4717 test 2 because it isn't Perl-compatible. ---/ 4718 4719 /(*MARK:A)(*SKIP:B)(C|X)/KSS 4720 C 4721 D 4722 4723 /^(A(*THEN:A)B|C(*THEN:B)D)/K 4724 ** Failers 4725 CB 4726 4727 /^(?:A(*THEN:A)B|C(*THEN:B)D)/K 4728 CB 4729 4730 /^(?>A(*THEN:A)B|C(*THEN:B)D)/K 4731 CB 4732 4733 /--- This should succeed, as the skip causes bump to offset 1 (the mark). Note 4734 that we have to have something complicated such as (B|Z) at the end because, 4735 for Perl, a simple character somehow causes an unwanted optimization to mess 4736 with the handling of backtracking verbs. ---/ 4737 4738 /A(*MARK:A)A+(*SKIP:A)(B|Z) | AC/xK 4739 AAAC 4740 4741 /--- Test skipping over a non-matching mark. ---/ 4742 4743 /A(*MARK:A)A+(*MARK:B)(*SKIP:A)(B|Z) | AC/xK 4744 AAAC 4745 4746 /--- Check shorthand for MARK ---/ 4747 4748 /A(*:A)A+(*SKIP:A)(B|Z) | AC/xK 4749 AAAC 4750 4751 /--- Don't loop! Force no study, otherwise mark is not seen. ---/ 4752 4753 /(*:A)A+(*SKIP:A)(B|Z)/KSS 4754 AAAC 4755 4756 /--- This should succeed, as a non-existent skip name disables the skip ---/ 4757 4758 /A(*MARK:A)A+(*SKIP:B)(B|Z) | AC/xK 4759 AAAC 4760 4761 /A(*MARK:A)A+(*SKIP:B)(B|Z) | AC(*:B)/xK 4762 AAAC 4763 4764 /--- COMMIT at the start of a pattern should act like an anchor. Again, 4765 however, we need the complication for Perl. ---/ 4766 4767 /(*COMMIT)(A|P)(B|P)(C|P)/ 4768 ABCDEFG 4769 ** Failers 4770 DEFGABC 4771 4772 /--- COMMIT inside an atomic group can't stop backtracking over the group. ---/ 4773 4774 /(\w+)(?>b(*COMMIT))\w{2}/ 4775 abbb 4776 4777 /(\w+)b(*COMMIT)\w{2}/ 4778 abbb 4779 4780 /--- Check opening parens in comment when seeking forward reference. ---/ 4781 4782 /(?&t)(?#()(?(DEFINE)(?<t>a))/ 4783 bac 4784 4785 /--- COMMIT should override THEN ---/ 4786 4787 /(?>(*COMMIT)(?>yes|no)(*THEN)(*F))?/ 4788 yes 4789 4790 /(?>(*COMMIT)(yes|no)(*THEN)(*F))?/ 4791 yes 4792 4793 /b?(*SKIP)c/ 4794 bc 4795 abc 4796 4797 /(*SKIP)bc/ 4798 a 4799 4800 /(*SKIP)b/ 4801 a 4802 4803 /(?P<abn>(?P=abn)xxx|)+/ 4804 xxx 4805 4806 /(?i:([^b]))(?1)/ 4807 aa 4808 aA 4809 ** Failers 4810 ab 4811 aB 4812 Ba 4813 ba 4814 4815 /^(?&t)*+(?(DEFINE)(?<t>a))\w$/ 4816 aaaaaaX 4817 ** Failers 4818 aaaaaa 4819 4820 /^(?&t)*(?(DEFINE)(?<t>a))\w$/ 4821 aaaaaaX 4822 aaaaaa 4823 4824 /^(a)*+(\w)/ 4825 aaaaX 4826 YZ 4827 ** Failers 4828 aaaa 4829 4830 /^(?:a)*+(\w)/ 4831 aaaaX 4832 YZ 4833 ** Failers 4834 aaaa 4835 4836 /^(a)++(\w)/ 4837 aaaaX 4838 ** Failers 4839 aaaa 4840 YZ 4841 4842 /^(?:a)++(\w)/ 4843 aaaaX 4844 ** Failers 4845 aaaa 4846 YZ 4847 4848 /^(a)?+(\w)/ 4849 aaaaX 4850 YZ 4851 4852 /^(?:a)?+(\w)/ 4853 aaaaX 4854 YZ 4855 4856 /^(a){2,}+(\w)/ 4857 aaaaX 4858 ** Failers 4859 aaa 4860 YZ 4861 4862 /^(?:a){2,}+(\w)/ 4863 aaaaX 4864 ** Failers 4865 aaa 4866 YZ 4867 4868 /(a|)*(?1)b/ 4869 b 4870 ab 4871 aab 4872 4873 /(a)++(?1)b/ 4874 ** Failers 4875 ab 4876 aab 4877 4878 /(a)*+(?1)b/ 4879 ** Failers 4880 ab 4881 aab 4882 4883 /(?1)(?:(b)){0}/ 4884 b 4885 4886 /(foo ( \( ((?:(?> [^()]+ )|(?2))*) \) ) )/x 4887 foo(bar(baz)+baz(bop)) 4888 4889 /(A (A|B(*ACCEPT)|C) D)(E)/x 4890 AB 4891 4892 /\A.*?(a|bc)/ 4893 ba 4894 4895 /\A.*?(?:a|bc)++/ 4896 ba 4897 4898 /\A.*?(a|bc)++/ 4899 ba 4900 4901 /\A.*?(?:a|bc|d)/ 4902 ba 4903 4904 /(?:(b))++/ 4905 beetle 4906 4907 /(?(?=(a(*ACCEPT)z))a)/ 4908 a 4909 4910 /^(a)(?1)+ab/ 4911 aaaab 4912 4913 /^(a)(?1)++ab/ 4914 aaaab 4915 4916 /^(?=a(*:M))aZ/K 4917 aZbc 4918 4919 /^(?!(*:M)b)aZ/K 4920 aZbc 4921 4922 /(?(DEFINE)(a))?b(?1)/ 4923 backgammon 4924 4925 /^\N+/ 4926 abc\ndef 4927 4928 /^\N{1,}/ 4929 abc\ndef 4930 4931 /(?(R)a+|(?R)b)/ 4932 aaaabcde 4933 4934 /(?(R)a+|((?R))b)/ 4935 aaaabcde 4936 4937 /((?(R)a+|(?1)b))/ 4938 aaaabcde 4939 4940 /((?(R1)a+|(?1)b))/ 4941 aaaabcde 4942 4943 /((?(R)a|(?1)))*/ 4944 aaa 4945 4946 /((?(R)a|(?1)))+/ 4947 aaa 4948 4949 /a(*:any 4950 name)/K 4951 abc 4952 4953 /(?>(?&t)c|(?&t))(?(DEFINE)(?<t>a|b(*PRUNE)c))/ 4954 a 4955 ba 4956 bba 4957 4958 /--- Checking revised (*THEN) handling ---/ 4959 4960 /--- Capture ---/ 4961 4962 /^.*? (a(*THEN)b) c/x 4963 aabc 4964 4965 /^.*? (a(*THEN)b|(*F)) c/x 4966 aabc 4967 4968 /^.*? ( (a(*THEN)b) | (*F) ) c/x 4969 aabc 4970 4971 /^.*? ( (a(*THEN)b) ) c/x 4972 aabc 4973 4974 /--- Non-capture ---/ 4975 4976 /^.*? (?:a(*THEN)b) c/x 4977 aabc 4978 4979 /^.*? (?:a(*THEN)b|(*F)) c/x 4980 aabc 4981 4982 /^.*? (?: (?:a(*THEN)b) | (*F) ) c/x 4983 aabc 4984 4985 /^.*? (?: (?:a(*THEN)b) ) c/x 4986 aabc 4987 4988 /--- Atomic ---/ 4989 4990 /^.*? (?>a(*THEN)b) c/x 4991 aabc 4992 4993 /^.*? (?>a(*THEN)b|(*F)) c/x 4994 aabc 4995 4996 /^.*? (?> (?>a(*THEN)b) | (*F) ) c/x 4997 aabc 4998 4999 /^.*? (?> (?>a(*THEN)b) ) c/x 5000 aabc 5001 5002 /--- Possessive capture ---/ 5003 5004 /^.*? (a(*THEN)b)++ c/x 5005 aabc 5006 5007 /^.*? (a(*THEN)b|(*F))++ c/x 5008 aabc 5009 5010 /^.*? ( (a(*THEN)b)++ | (*F) )++ c/x 5011 aabc 5012 5013 /^.*? ( (a(*THEN)b)++ )++ c/x 5014 aabc 5015 5016 /--- Possessive non-capture ---/ 5017 5018 /^.*? (?:a(*THEN)b)++ c/x 5019 aabc 5020 5021 /^.*? (?:a(*THEN)b|(*F))++ c/x 5022 aabc 5023 5024 /^.*? (?: (?:a(*THEN)b)++ | (*F) )++ c/x 5025 aabc 5026 5027 /^.*? (?: (?:a(*THEN)b)++ )++ c/x 5028 aabc 5029 5030 /--- Condition assertion ---/ 5031 5032 /^(?(?=a(*THEN)b)ab|ac)/ 5033 ac 5034 5035 /--- Condition ---/ 5036 5037 /^.*?(?(?=a)a|b(*THEN)c)/ 5038 ba 5039 5040 /^.*?(?:(?(?=a)a|b(*THEN)c)|d)/ 5041 ba 5042 5043 /^.*?(?(?=a)a(*THEN)b|c)/ 5044 ac 5045 5046 /--- Assertion ---/ 5047 5048 /^.*(?=a(*THEN)b)/ 5049 aabc 5050 5051 /------------------------------/ 5052 5053 /(?>a(*:m))/imsxSK 5054 a 5055 5056 /(?>(a)(*:m))/imsxSK 5057 a 5058 5059 /(?<=a(*ACCEPT)b)c/ 5060 xacd 5061 5062 /(?<=(a(*ACCEPT)b))c/ 5063 xacd 5064 5065 /(?<=(a(*COMMIT)b))c/ 5066 xabcd 5067 ** Failers 5068 xacd 5069 5070 /(?<!a(*FAIL)b)c/ 5071 xcd 5072 acd 5073 5074 /(?<=a(*:N)b)c/K 5075 xabcd 5076 5077 /(?<=a(*PRUNE)b)c/ 5078 xabcd 5079 5080 /(?<=a(*SKIP)b)c/ 5081 xabcd 5082 5083 /(?<=a(*THEN)b)c/ 5084 xabcd 5085 5086 /(a)(?2){2}(.)/ 5087 abcd 5088 5089 /(*MARK:A)(*PRUNE:B)(C|X)/KS 5090 C 5091 D 5092 5093 /(*MARK:A)(*PRUNE:B)(C|X)/KSS 5094 C 5095 D 5096 5097 /(*MARK:A)(*THEN:B)(C|X)/KS 5098 C 5099 D 5100 5101 /(*MARK:A)(*THEN:B)(C|X)/KSY 5102 C 5103 D 5104 5105 /(*MARK:A)(*THEN:B)(C|X)/KSS 5106 C 5107 D 5108 5109 /--- This should fail, as the skip causes a bump to offset 3 (the skip) ---/ 5110 5111 /A(*MARK:A)A+(*SKIP)(B|Z) | AC/xK 5112 AAAC 5113 5114 /--- Same --/ 5115 5116 /A(*MARK:A)A+(*MARK:B)(*SKIP:B)(B|Z) | AC/xK 5117 AAAC 5118 5119 /A(*:A)A+(*SKIP)(B|Z) | AC/xK 5120 AAAC 5121 5122 /--- This should fail, as a null name is the same as no name ---/ 5123 5124 /A(*MARK:A)A+(*SKIP:)(B|Z) | AC/xK 5125 AAAC 5126 5127 /--- A check on what happens after hitting a mark and them bumping along to 5128 something that does not even start. Perl reports tags after the failures here, 5129 though it does not when the individual letters are made into something 5130 more complicated. ---/ 5131 5132 /A(*:A)B|XX(*:B)Y/K 5133 AABC 5134 XXYZ 5135 ** Failers 5136 XAQQ 5137 XAQQXZZ 5138 AXQQQ 5139 AXXQQQ 5140 5141 /^(A(*THEN:A)B|C(*THEN:B)D)/K 5142 AB 5143 CD 5144 ** Failers 5145 AC 5146 CB 5147 5148 /^(A(*PRUNE:A)B|C(*PRUNE:B)D)/K 5149 AB 5150 CD 5151 ** Failers 5152 AC 5153 CB 5154 5155 /--- An empty name does not pass back an empty string. It is the same as if no 5156 name were given. ---/ 5157 5158 /^(A(*PRUNE:)B|C(*PRUNE:B)D)/K 5159 AB 5160 CD 5161 5162 /--- PRUNE goes to next bumpalong; COMMIT does not. ---/ 5163 5164 /A(*PRUNE:A)B/K 5165 ACAB 5166 5167 /--- Mark names can be duplicated ---/ 5168 5169 /A(*:A)B|X(*:A)Y/K 5170 AABC 5171 XXYZ 5172 5173 /b(*:m)f|a(*:n)w/K 5174 aw 5175 ** Failers 5176 abc 5177 5178 /b(*:m)f|aw/K 5179 abaw 5180 ** Failers 5181 abc 5182 abax 5183 5184 /A(*MARK:A)A+(*SKIP:B)(B|Z) | AAC/xK 5185 AAAC 5186 5187 /a(*PRUNE:X)bc|qq/KY 5188 ** Failers 5189 axy 5190 5191 /a(*THEN:X)bc|qq/KY 5192 ** Failers 5193 axy 5194 5195 /(?=a(*MARK:A)b)..x/K 5196 abxy 5197 ** Failers 5198 abpq 5199 5200 /(?=a(*MARK:A)b)..(*:Y)x/K 5201 abxy 5202 ** Failers 5203 abpq 5204 5205 /(?=a(*PRUNE:A)b)..x/K 5206 abxy 5207 ** Failers 5208 abpq 5209 5210 /(?=a(*PRUNE:A)b)..(*:Y)x/K 5211 abxy 5212 ** Failers 5213 abpq 5214 5215 /(?=a(*THEN:A)b)..x/K 5216 abxy 5217 ** Failers 5218 abpq 5219 5220 /(?=a(*THEN:A)b)..(*:Y)x/K 5221 abxy 5222 ** Failers 5223 abpq 5224 5225 /(another)?(\1?)test/ 5226 hello world test 5227 5228 /(another)?(\1+)test/ 5229 hello world test 5230 5231 /(a(*COMMIT)b){0}a(?1)|aac/ 5232 aac 5233 5234 /((?:a?)*)*c/ 5235 aac 5236 5237 /((?>a?)*)*c/ 5238 aac 5239 5240 /(?>.*?a)(?<=ba)/ 5241 aba 5242 5243 /(?:.*?a)(?<=ba)/ 5244 aba 5245 5246 /.*?a(*PRUNE)b/ 5247 aab 5248 5249 /.*?a(*PRUNE)b/s 5250 aab 5251 5252 /^a(*PRUNE)b/s 5253 aab 5254 5255 /.*?a(*SKIP)b/ 5256 aab 5257 5258 /(?>.*?a)b/s 5259 aab 5260 5261 /(?>.*?a)b/ 5262 aab 5263 5264 /(?>^a)b/s 5265 aab 5266 5267 /(?>.*?)(?<=(abcd)|(wxyz))/ 5268 alphabetabcd 5269 endingwxyz 5270 5271 /(?>.*)(?<=(abcd)|(wxyz))/ 5272 alphabetabcd 5273 endingwxyz 5274 5275 "(?>.*)foo" 5276 abcdfooxyz 5277 5278 "(?>.*?)foo" 5279 abcdfooxyz 5280 5281 /(?:(a(*PRUNE)b)){0}(?:(?1)|ac)/ 5282 ac 5283 5284 /(?:(a(*SKIP)b)){0}(?:(?1)|ac)/ 5285 ac 5286 5287 /(?<=(*SKIP)ac)a/ 5288 aa 5289 5290 /A(*MARK:A)A+(*SKIP:B)(B|Z) | AC/xK 5291 AAAC 5292 5293 /a(*SKIP:m)x|ac(*:n)(*SKIP:n)d|ac/K 5294 acacd 5295 5296 /A(*SKIP:m)x|A(*SKIP:n)x|AB/K 5297 AB 5298 5299 /((*SKIP:r)d){0}a(*SKIP:m)x|ac(*:n)|ac/K 5300 acacd 5301 5302 /-- Tests that try to figure out how Perl works. My hypothesis is that the 5303 first verb that is backtracked onto is the one that acts. This seems to be 5304 the case almost all the time, but there is one exception that is perhaps a 5305 bug. --/ 5306 5307 /-- This matches "aaaac"; each PRUNE advances one character until the subject 5308 no longer starts with 5 'a's. --/ 5309 5310 /aaaaa(*PRUNE)b|a+c/ 5311 aaaaaac 5312 5313 /-- Putting SKIP in front of PRUNE makes no difference, as it is never 5314 backtracked onto, whether or not it has a label. --/ 5315 5316 /aaaaa(*SKIP)(*PRUNE)b|a+c/ 5317 aaaaaac 5318 5319 /aaaaa(*SKIP:N)(*PRUNE)b|a+c/ 5320 aaaaaac 5321 5322 /aaaa(*:N)a(*SKIP:N)(*PRUNE)b|a+c/ 5323 aaaaaac 5324 5325 /-- Putting THEN in front makes no difference. */ 5326 5327 /aaaaa(*THEN)(*PRUNE)b|a+c/ 5328 aaaaaac 5329 5330 /-- However, putting COMMIT in front of the prune changes it to "no match". I 5331 think this is inconsistent and possibly a bug. For the moment, running this 5332 test is moved out of the Perl-compatible file. --/ 5333 5334 /aaaaa(*COMMIT)(*PRUNE)b|a+c/ 5335 5336 5337 /---- OK, lets play the same game again using SKIP instead of PRUNE. ----/ 5338 5339 /-- This matches "ac" because SKIP forces the next match to start on the 5340 sixth "a". --/ 5341 5342 /aaaaa(*SKIP)b|a+c/ 5343 aaaaaac 5344 5345 /-- Putting PRUNE in front makes no difference. --/ 5346 5347 /aaaaa(*PRUNE)(*SKIP)b|a+c/ 5348 aaaaaac 5349 5350 /-- Putting THEN in front makes no difference. --/ 5351 5352 /aaaaa(*THEN)(*SKIP)b|a+c/ 5353 aaaaaac 5354 5355 /-- In this case, neither does COMMIT. This still matches "ac". --/ 5356 5357 /aaaaa(*COMMIT)(*SKIP)b|a+c/ 5358 aaaaaac 5359 5360 /-- This gives "no match", as expected. --/ 5361 5362 /aaaaa(*COMMIT)b|a+c/ 5363 aaaaaac 5364 5365 5366 /------ Tests using THEN ------/ 5367 5368 /-- This matches "aaaaaac", as expected. --/ 5369 5370 /aaaaa(*THEN)b|a+c/ 5371 aaaaaac 5372 5373 /-- Putting SKIP in front makes no difference. --/ 5374 5375 /aaaaa(*SKIP)(*THEN)b|a+c/ 5376 aaaaaac 5377 5378 /-- Putting PRUNE in front makes no difference. --/ 5379 5380 /aaaaa(*PRUNE)(*THEN)b|a+c/ 5381 aaaaaac 5382 5383 /-- Putting COMMIT in front makes no difference. --/ 5384 5385 /aaaaa(*COMMIT)(*THEN)b|a+c/ 5386 aaaaaac 5387 5388 /-- End of "priority" tests --/ 5389 5390 /aaaaa(*:m)(*PRUNE:m)(*SKIP:m)m|a+/ 5391 aaaaaa 5392 5393 /aaaaa(*:m)(*MARK:m)(*PRUNE)(*SKIP:m)m|a+/ 5394 aaaaaa 5395 5396 /aaaaa(*:n)(*PRUNE:m)(*SKIP:m)m|a+/ 5397 aaaaaa 5398 5399 /aaaaa(*:n)(*MARK:m)(*PRUNE)(*SKIP:m)m|a+/ 5400 aaaaaa 5401 5402 /a(*MARK:A)aa(*PRUNE:A)a(*SKIP:A)b|a+c/ 5403 aaaac 5404 5405 /a(*MARK:A)aa(*MARK:A)a(*SKIP:A)b|a+c/ 5406 aaaac 5407 5408 /aaa(*PRUNE:A)a(*SKIP:A)b|a+c/ 5409 aaaac 5410 5411 /aaa(*MARK:A)a(*SKIP:A)b|a+c/ 5412 aaaac 5413 5414 /a(*:m)a(*COMMIT)(*SKIP:m)b|a+c/K 5415 aaaaaac 5416 5417 /.?(a|b(*THEN)c)/ 5418 ba 5419 5420 /(a(*COMMIT)b)c|abd/ 5421 abc 5422 abd 5423 5424 /(?=a(*COMMIT)b)abc|abd/ 5425 abc 5426 abd 5427 5428 /(?>a(*COMMIT)b)c|abd/ 5429 abc 5430 abd 5431 5432 /a(?=b(*COMMIT)c)[^d]|abd/ 5433 abd 5434 abc 5435 5436 /a(?=bc).|abd/ 5437 abd 5438 abc 5439 5440 /a(?>b(*COMMIT)c)d|abd/ 5441 abceabd 5442 5443 /a(?>bc)d|abd/ 5444 abceabd 5445 5446 /(?>a(*COMMIT)b)c|abd/ 5447 abd 5448 5449 /(?>a(*COMMIT)c)d|abd/ 5450 abd 5451 5452 /((?=a(*COMMIT)b)ab|ac){0}(?:(?1)|a(c))/ 5453 ac 5454 5455 /-- These tests were formerly in test 2, but changes in PCRE and Perl have 5456 made them compatible. --/ 5457 5458 /^(a)?(?(1)a|b)+$/ 5459 *** Failers 5460 a 5461 5462 /(?=a\Kb)ab/ 5463 ab 5464 5465 /(?!a\Kb)ac/ 5466 ac 5467 5468 /^abc(?<=b\Kc)d/ 5469 abcd 5470 5471 /^abc(?<!b\Kq)d/ 5472 abcd 5473 5474 5475 /A(*PRUNE:A)A+(*SKIP:A)(B|Z) | AC/xK 5476 AAAC 5477 5478 /^((abc|abcx)(*THEN)y|abcd)/ 5479 abcd 5480 *** Failers 5481 abcxy 5482 5483 /^((yes|no)(*THEN)(*F))?/ 5484 yes 5485 5486 /(A (.*) C? (*THEN) | A D) (*FAIL)/x 5487 AbcdCBefgBhiBqz 5488 5489 /(A (.*) C? (*THEN) | A D) z/x 5490 AbcdCBefgBhiBqz 5491 5492 /(A (.*) C? (*THEN) | A D) \s* (*FAIL)/x 5493 AbcdCBefgBhiBqz 5494 5495 /(A (.*) C? (*THEN) | A D) \s* z/x 5496 AbcdCBefgBhiBqz 5497 5498 /(A (.*) (?:C|) (*THEN) | A D) (*FAIL)/x 5499 AbcdCBefgBhiBqz 5500 5501 /(A (.*) (?:C|) (*THEN) | A D) z/x 5502 AbcdCBefgBhiBqz 5503 5504 /(A (.*) C{0,6} (*THEN) | A D) (*FAIL)/x 5505 AbcdCBefgBhiBqz 5506 5507 /(A (.*) C{0,6} (*THEN) | A D) z/x 5508 AbcdCBefgBhiBqz 5509 5510 /(A (.*) (CE){0,6} (*THEN) | A D) (*FAIL)/x 5511 AbcdCEBefgBhiBqz 5512 5513 /(A (.*) (CE){0,6} (*THEN) | A D) z/x 5514 AbcdCEBefgBhiBqz 5515 5516 /(A (.*) (CE*){0,6} (*THEN) | A D) (*FAIL)/x 5517 AbcdCBefgBhiBqz 5518 5519 /(A (.*) (CE*){0,6} (*THEN) | A D) z/x 5520 AbcdCBefgBhiBqz 5521 5522 /(?=a(*COMMIT)b|ac)ac|ac/ 5523 ac 5524 5525 /(?=a(*COMMIT)b|(ac)) ac | (a)c/x 5526 ac 5527 5528 /--------/ 5529 5530 /(?(?!b(*THEN)a)bn|bnn)/ 5531 bnn 5532 5533 /(?!b(*SKIP)a)bn|bnn/ 5534 bnn 5535 5536 /(?(?!b(*SKIP)a)bn|bnn)/ 5537 bnn 5538 5539 /(?!b(*PRUNE)a)bn|bnn/ 5540 bnn 5541 5542 /(?(?!b(*PRUNE)a)bn|bnn)/ 5543 bnn 5544 5545 /(?!b(*COMMIT)a)bn|bnn/ 5546 bnn 5547 5548 /(?(?!b(*COMMIT)a)bn|bnn)/ 5549 bnn 5550 5551 /(?=b(*SKIP)a)bn|bnn/ 5552 bnn 5553 5554 /(?=b(*THEN)a)bn|bnn/ 5555 bnn 5556 5557 /^(?!a(*SKIP)b)/ 5558 ac 5559 5560 /^(?!a(*SKIP)b)../ 5561 acd 5562 5563 /(?!a(*SKIP)b)../ 5564 acd 5565 5566 /^(?(?!a(*SKIP)b))/ 5567 ac 5568 5569 /^(?!a(*PRUNE)b)../ 5570 acd 5571 5572 /(?!a(*PRUNE)b)../ 5573 acd 5574 5575 /(?!a(*COMMIT)b)ac|cd/ 5576 ac 5577 5578 /\A.*?(?:a|bc)/ 5579 ba 5580 5581 /^(A(*THEN)B|C(*THEN)D)/ 5582 CD 5583 5584 /(*:m(m)(?&y)(?(DEFINE)(?<y>b))/K 5585 abc 5586 5587 /(*PRUNE:m(m)(?&y)(?(DEFINE)(?<y>b))/K 5588 abc 5589 5590 /(*SKIP:m(m)(?&y)(?(DEFINE)(?<y>b))/K 5591 abc 5592 5593 /(*THEN:m(m)(?&y)(?(DEFINE)(?<y>b))/K 5594 abc 5595 5596 /^\d*\w{4}/ 5597 1234 5598 123 5599 5600 /^[^b]*\w{4}/ 5601 aaaa 5602 aaa 5603 5604 /^[^b]*\w{4}/i 5605 aaaa 5606 aaa 5607 5608 /^a*\w{4}/ 5609 aaaa 5610 aaa 5611 5612 /^a*\w{4}/i 5613 aaaa 5614 aaa 5615 5616 /(?(?=ab)ab)/+ 5617 ca 5618 cd 5619 5620 /(?:(?<n>foo)|(?<n>bar))\k<n>/J 5621 foofoo 5622 barbar 5623 5624 /(?<n>A)(?:(?<n>foo)|(?<n>bar))\k<n>/J 5625 AfooA 5626 AbarA 5627 ** Failers 5628 Afoofoo 5629 Abarbar 5630 5631 /^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/ 5632 1 IN SOA non-sp1 non-sp2( 5633 5634 /^ (?:(?<A>A)|(?'B'B)(?<A>A)) (?('A')x) (?(<B>)y)$/xJ 5635 Ax 5636 BAxy 5637 5638 /^A\xZ/ 5639 A\0Z 5640 5641 /^A\o{123}B/ 5642 A\123B 5643 5644 / ^ a + + b $ /x 5645 aaaab 5646 5647 / ^ a + #comment 5648 + b $ /x 5649 aaaab 5650 5651 / ^ a + #comment 5652 #comment 5653 + b $ /x 5654 aaaab 5655 5656 / ^ (?> a + ) b $ /x 5657 aaaab 5658 5659 / ^ ( a + ) + + \w $ /x 5660 aaaab 5661 5662 /(?:a\Kb)*+/+ 5663 ababc 5664 5665 /(?>a\Kb)*/+ 5666 ababc 5667 5668 /(?:a\Kb)*/+ 5669 ababc 5670 5671 /(a\Kb)*+/+ 5672 ababc 5673 5674 /(a\Kb)*/+ 5675 ababc 5676 5677 /(?:x|(?:(xx|yy)+|x|x|x|x|x)|a|a|a)bc/ 5678 acb 5679 5680 '\A(?:[^\"]++|\"(?:[^\"]*+|\"\")*+\")++' 5681 NON QUOTED \"QUOT\"\"ED\" AFTER \"NOT MATCHED 5682 5683 '\A(?:[^\"]++|\"(?:[^\"]++|\"\")*+\")++' 5684 NON QUOTED \"QUOT\"\"ED\" AFTER \"NOT MATCHED 5685 5686 '\A(?:[^\"]++|\"(?:[^\"]++|\"\")++\")++' 5687 NON QUOTED \"QUOT\"\"ED\" AFTER \"NOT MATCHED 5688 5689 '\A([^\"1]++|[\"2]([^\"3]*+|[\"4][\"5])*+[\"6])++' 5690 NON QUOTED \"QUOT\"\"ED\" AFTER \"NOT MATCHED 5691 5692 /^\w+(?>\s*)(?<=\w)/ 5693 test test 5694 5695 /(?P<same>a)(?P<same>b)/gJ 5696 abbaba 5697 5698 /(?P<same>a)(?P<same>b)(?P=same)/gJ 5699 abbaba 5700 5701 /(?P=same)?(?P<same>a)(?P<same>b)/gJ 5702 abbaba 5703 5704 /(?:(?P=same)?(?:(?P<same>a)|(?P<same>b))(?P=same))+/gJ 5705 bbbaaabaabb 5706 5707 /(?:(?P=same)?(?:(?P=same)(?P<same>a)(?P=same)|(?P=same)?(?P<same>b)(?P=same)){2}(?P=same)(?P<same>c)(?P=same)){2}(?P<same>z)?/gJ 5708 bbbaaaccccaaabbbcc 5709 5710 /(?P<Name>a)?(?P<Name2>b)?(?(<Name>)c|d)*l/ 5711 acl 5712 bdl 5713 adl 5714 bcl 5715 5716 /\sabc/ 5717 \x{0b}abc 5718 5719 /[\Qa]\E]+/ 5720 aa]] 5721 5722 /[\Q]a\E]+/ 5723 aa]] 5724 5725 /-- End of testinput1 --/ 5726
