1 /-- This set of tests is for features that are compatible with all versions of 2 Perl 5, in non-UTF-8 mode. --/ 3 4 /the quick brown fox/ 5 the quick brown fox 6 The quick brown FOX 7 What do you know about the quick brown fox? 8 What do you know about THE QUICK BROWN FOX? 9 10 /The quick brown fox/i 11 the quick brown fox 12 The quick brown FOX 13 What do you know about the quick brown fox? 14 What do you know about THE QUICK BROWN FOX? 15 16 /abcd\t\n\r\f\a\e\071\x3b\$\\\?caxyz/ 17 abcd\t\n\r\f\a\e9;\$\\?caxyz 18 19 /a*abc?xyz+pqr{3}ab{2,}xy{4,5}pq{0,6}AB{0,}zz/ 20 abxyzpqrrrabbxyyyypqAzz 21 abxyzpqrrrabbxyyyypqAzz 22 aabxyzpqrrrabbxyyyypqAzz 23 aaabxyzpqrrrabbxyyyypqAzz 24 aaaabxyzpqrrrabbxyyyypqAzz 25 abcxyzpqrrrabbxyyyypqAzz 26 aabcxyzpqrrrabbxyyyypqAzz 27 aaabcxyzpqrrrabbxyyyypAzz 28 aaabcxyzpqrrrabbxyyyypqAzz 29 aaabcxyzpqrrrabbxyyyypqqAzz 30 aaabcxyzpqrrrabbxyyyypqqqAzz 31 aaabcxyzpqrrrabbxyyyypqqqqAzz 32 aaabcxyzpqrrrabbxyyyypqqqqqAzz 33 aaabcxyzpqrrrabbxyyyypqqqqqqAzz 34 aaaabcxyzpqrrrabbxyyyypqAzz 35 abxyzzpqrrrabbxyyyypqAzz 36 aabxyzzzpqrrrabbxyyyypqAzz 37 aaabxyzzzzpqrrrabbxyyyypqAzz 38 aaaabxyzzzzpqrrrabbxyyyypqAzz 39 abcxyzzpqrrrabbxyyyypqAzz 40 aabcxyzzzpqrrrabbxyyyypqAzz 41 aaabcxyzzzzpqrrrabbxyyyypqAzz 42 aaaabcxyzzzzpqrrrabbxyyyypqAzz 43 aaaabcxyzzzzpqrrrabbbxyyyypqAzz 44 aaaabcxyzzzzpqrrrabbbxyyyyypqAzz 45 aaabcxyzpqrrrabbxyyyypABzz 46 aaabcxyzpqrrrabbxyyyypABBzz 47 >>>aaabxyzpqrrrabbxyyyypqAzz 48 >aaaabxyzpqrrrabbxyyyypqAzz 49 >>>>abcxyzpqrrrabbxyyyypqAzz 50 *** Failers 51 abxyzpqrrabbxyyyypqAzz 52 abxyzpqrrrrabbxyyyypqAzz 53 abxyzpqrrrabxyyyypqAzz 54 aaaabcxyzzzzpqrrrabbbxyyyyyypqAzz 55 aaaabcxyzzzzpqrrrabbbxyyypqAzz 56 aaabcxyzpqrrrabbxyyyypqqqqqqqAzz 57 58 /^(abc){1,2}zz/ 59 abczz 60 abcabczz 61 *** Failers 62 zz 63 abcabcabczz 64 >>abczz 65 66 /^(b+?|a){1,2}?c/ 67 bc 68 bbc 69 bbbc 70 bac 71 bbac 72 aac 73 abbbbbbbbbbbc 74 bbbbbbbbbbbac 75 *** Failers 76 aaac 77 abbbbbbbbbbbac 78 79 /^(b+|a){1,2}c/ 80 bc 81 bbc 82 bbbc 83 bac 84 bbac 85 aac 86 abbbbbbbbbbbc 87 bbbbbbbbbbbac 88 *** Failers 89 aaac 90 abbbbbbbbbbbac 91 92 /^(b+|a){1,2}?bc/ 93 bbc 94 95 /^(b*|ba){1,2}?bc/ 96 babc 97 bbabc 98 bababc 99 *** Failers 100 bababbc 101 babababc 102 103 /^(ba|b*){1,2}?bc/ 104 babc 105 bbabc 106 bababc 107 *** Failers 108 bababbc 109 babababc 110 111 /^\ca\cA\c[\c{\c:/ 112 \x01\x01\e;z 113 114 /^[ab\]cde]/ 115 athing 116 bthing 117 ]thing 118 cthing 119 dthing 120 ething 121 *** Failers 122 fthing 123 [thing 124 \\thing 125 126 /^[]cde]/ 127 ]thing 128 cthing 129 dthing 130 ething 131 *** Failers 132 athing 133 fthing 134 135 /^[^ab\]cde]/ 136 fthing 137 [thing 138 \\thing 139 *** Failers 140 athing 141 bthing 142 ]thing 143 cthing 144 dthing 145 ething 146 147 /^[^]cde]/ 148 athing 149 fthing 150 *** Failers 151 ]thing 152 cthing 153 dthing 154 ething 155 156 /^\/ 157 158 159 /^/ 160 161 162 /^[0-9]+$/ 163 0 164 1 165 2 166 3 167 4 168 5 169 6 170 7 171 8 172 9 173 10 174 100 175 *** Failers 176 abc 177 178 /^.*nter/ 179 enter 180 inter 181 uponter 182 183 /^xxx[0-9]+$/ 184 xxx0 185 xxx1234 186 *** Failers 187 xxx 188 189 /^.+[0-9][0-9][0-9]$/ 190 x123 191 xx123 192 123456 193 *** Failers 194 123 195 x1234 196 197 /^.+?[0-9][0-9][0-9]$/ 198 x123 199 xx123 200 123456 201 *** Failers 202 123 203 x1234 204 205 /^([^!]+)!(.+)=apquxz\.ixr\.zzz\.ac\.uk$/ 206 abc!pqr=apquxz.ixr.zzz.ac.uk 207 *** Failers 208 !pqr=apquxz.ixr.zzz.ac.uk 209 abc!=apquxz.ixr.zzz.ac.uk 210 abc!pqr=apquxz:ixr.zzz.ac.uk 211 abc!pqr=apquxz.ixr.zzz.ac.ukk 212 213 /:/ 214 Well, we need a colon: somewhere 215 *** Fail if we don't 216 217 /([\da-f:]+)$/i 218 0abc 219 abc 220 fed 221 E 222 :: 223 5f03:12C0::932e 224 fed def 225 Any old stuff 226 *** Failers 227 0zzz 228 gzzz 229 fed\x20 230 Any old rubbish 231 232 /^.*\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ 233 .1.2.3 234 A.12.123.0 235 *** Failers 236 .1.2.3333 237 1.2.3 238 1234.2.3 239 240 /^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/ 241 1 IN SOA non-sp1 non-sp2( 242 1 IN SOA non-sp1 non-sp2 ( 243 *** Failers 244 1IN SOA non-sp1 non-sp2( 245 246 /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/ 247 a. 248 Z. 249 2. 250 ab-c.pq-r. 251 sxk.zzz.ac.uk. 252 x-.y-. 253 *** Failers 254 -abc.peq. 255 256 /^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/ 257 *.a 258 *.b0-a 259 *.c3-b.c 260 *.c-a.b-c 261 *** Failers 262 *.0 263 *.a- 264 *.a-b.c- 265 *.c-a.0-c 266 267 /^(?=ab(de))(abd)(e)/ 268 abde 269 270 /^(?!(ab)de|x)(abd)(f)/ 271 abdf 272 273 /^(?=(ab(cd)))(ab)/ 274 abcd 275 276 /^[\da-f](\.[\da-f])*$/i 277 a.b.c.d 278 A.B.C.D 279 a.b.c.1.2.3.C 280 281 /^\".*\"\s*(;.*)?$/ 282 \"1234\" 283 \"abcd\" ; 284 \"\" ; rhubarb 285 *** Failers 286 \"1234\" : things 287 288 /^$/ 289 \ 290 *** Failers 291 292 / ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/x 293 ab c 294 *** Failers 295 abc 296 ab cde 297 298 /(?x) ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/ 299 ab c 300 *** Failers 301 abc 302 ab cde 303 304 /^ a\ b[c ]d $/x 305 a bcd 306 a b d 307 *** Failers 308 abcd 309 ab d 310 311 /^(a(b(c)))(d(e(f)))(h(i(j)))(k(l(m)))$/ 312 abcdefhijklm 313 314 /^(?:a(b(c)))(?:d(e(f)))(?:h(i(j)))(?:k(l(m)))$/ 315 abcdefhijklm 316 317 /^[\w][\W][\s][\S][\d][\D][\b][\n][\c]][\022]/ 318 a+ Z0+\x08\n\x1d\x12 319 320 /^[.^$|()*+?{,}]+/ 321 .^\$(*+)|{?,?} 322 323 /^a*\w/ 324 z 325 az 326 aaaz 327 a 328 aa 329 aaaa 330 a+ 331 aa+ 332 333 /^a*?\w/ 334 z 335 az 336 aaaz 337 a 338 aa 339 aaaa 340 a+ 341 aa+ 342 343 /^a+\w/ 344 az 345 aaaz 346 aa 347 aaaa 348 aa+ 349 350 /^a+?\w/ 351 az 352 aaaz 353 aa 354 aaaa 355 aa+ 356 357 /^\d{8}\w{2,}/ 358 1234567890 359 12345678ab 360 12345678__ 361 *** Failers 362 1234567 363 364 /^[aeiou\d]{4,5}$/ 365 uoie 366 1234 367 12345 368 aaaaa 369 *** Failers 370 123456 371 372 /^[aeiou\d]{4,5}?/ 373 uoie 374 1234 375 12345 376 aaaaa 377 123456 378 379 /\A(abc|def)=(\1){2,3}\Z/ 380 abc=abcabc 381 def=defdefdef 382 *** Failers 383 abc=defdef 384 385 /^(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\11*(\3\4)\1(?#)2$/ 386 abcdefghijkcda2 387 abcdefghijkkkkcda2 388 389 /(cat(a(ract|tonic)|erpillar)) \1()2(3)/ 390 cataract cataract23 391 catatonic catatonic23 392 caterpillar caterpillar23 393 394 395 /^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]/ 396 From abcd Mon Sep 01 12:33:02 1997 397 398 /^From\s+\S+\s+([a-zA-Z]{3}\s+){2}\d{1,2}\s+\d\d:\d\d/ 399 From abcd Mon Sep 01 12:33:02 1997 400 From abcd Mon Sep 1 12:33:02 1997 401 *** Failers 402 From abcd Sep 01 12:33:02 1997 403 404 /^12.34/s 405 12\n34 406 12\r34 407 408 /\w+(?=\t)/ 409 the quick brown\t fox 410 411 /foo(?!bar)(.*)/ 412 foobar is foolish see? 413 414 /(?:(?!foo)...|^.{0,2})bar(.*)/ 415 foobar crowbar etc 416 barrel 417 2barrel 418 A barrel 419 420 /^(\D*)(?=\d)(?!123)/ 421 abc456 422 *** Failers 423 abc123 424 425 /^1234(?# test newlines 426 inside)/ 427 1234 428 429 /^1234 #comment in extended re 430 /x 431 1234 432 433 /#rhubarb 434 abcd/x 435 abcd 436 437 /^abcd#rhubarb/x 438 abcd 439 440 /^(a)\1{2,3}(.)/ 441 aaab 442 aaaab 443 aaaaab 444 aaaaaab 445 446 /(?!^)abc/ 447 the abc 448 *** Failers 449 abc 450 451 /(?=^)abc/ 452 abc 453 *** Failers 454 the abc 455 456 /^[ab]{1,3}(ab*|b)/ 457 aabbbbb 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 / (?: [\040\t] | \( 469 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 470 \) )* # optional leading comment 471 (?: (?: 472 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 473 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 474 | 475 " (?: # opening quote... 476 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 477 | # or 478 \\ [^\x80-\xff] # Escaped something (something != CR) 479 )* " # closing quote 480 ) # initial word 481 (?: (?: [\040\t] | \( 482 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 483 \) )* \. (?: [\040\t] | \( 484 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 485 \) )* (?: 486 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 487 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 488 | 489 " (?: # opening quote... 490 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 491 | # or 492 \\ [^\x80-\xff] # Escaped something (something != CR) 493 )* " # closing quote 494 ) )* # further okay, if led by a period 495 (?: [\040\t] | \( 496 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 497 \) )* @ (?: [\040\t] | \( 498 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 499 \) )* (?: 500 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 501 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 502 | \[ # [ 503 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 504 \] # ] 505 ) # initial subdomain 506 (?: # 507 (?: [\040\t] | \( 508 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 509 \) )* \. # if led by a period... 510 (?: [\040\t] | \( 511 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 512 \) )* (?: 513 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 514 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 515 | \[ # [ 516 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 517 \] # ] 518 ) # ...further okay 519 )* 520 # address 521 | # or 522 (?: 523 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 524 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 525 | 526 " (?: # opening quote... 527 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 528 | # or 529 \\ [^\x80-\xff] # Escaped something (something != CR) 530 )* " # closing quote 531 ) # one word, optionally followed by.... 532 (?: 533 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] | # atom and space parts, or... 534 \( 535 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 536 \) | # comments, or... 537 538 " (?: # opening quote... 539 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 540 | # or 541 \\ [^\x80-\xff] # Escaped something (something != CR) 542 )* " # closing quote 543 # quoted strings 544 )* 545 < (?: [\040\t] | \( 546 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 547 \) )* # leading < 548 (?: @ (?: [\040\t] | \( 549 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 550 \) )* (?: 551 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 552 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 553 | \[ # [ 554 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 555 \] # ] 556 ) # initial subdomain 557 (?: # 558 (?: [\040\t] | \( 559 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 560 \) )* \. # if led by a period... 561 (?: [\040\t] | \( 562 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 563 \) )* (?: 564 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 565 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 566 | \[ # [ 567 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 568 \] # ] 569 ) # ...further okay 570 )* 571 572 (?: (?: [\040\t] | \( 573 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 574 \) )* , (?: [\040\t] | \( 575 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 576 \) )* @ (?: [\040\t] | \( 577 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 578 \) )* (?: 579 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 580 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 581 | \[ # [ 582 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 583 \] # ] 584 ) # initial subdomain 585 (?: # 586 (?: [\040\t] | \( 587 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 588 \) )* \. # if led by a period... 589 (?: [\040\t] | \( 590 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 591 \) )* (?: 592 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 593 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 594 | \[ # [ 595 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 596 \] # ] 597 ) # ...further okay 598 )* 599 )* # further okay, if led by comma 600 : # closing colon 601 (?: [\040\t] | \( 602 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 603 \) )* )? # optional route 604 (?: 605 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 606 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 607 | 608 " (?: # opening quote... 609 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 610 | # or 611 \\ [^\x80-\xff] # Escaped something (something != CR) 612 )* " # closing quote 613 ) # initial word 614 (?: (?: [\040\t] | \( 615 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 616 \) )* \. (?: [\040\t] | \( 617 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 618 \) )* (?: 619 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 620 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 621 | 622 " (?: # opening quote... 623 [^\\\x80-\xff\n\015"] # Anything except backslash and quote 624 | # or 625 \\ [^\x80-\xff] # Escaped something (something != CR) 626 )* " # closing quote 627 ) )* # further okay, if led by a period 628 (?: [\040\t] | \( 629 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 630 \) )* @ (?: [\040\t] | \( 631 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 632 \) )* (?: 633 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 634 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 635 | \[ # [ 636 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 637 \] # ] 638 ) # initial subdomain 639 (?: # 640 (?: [\040\t] | \( 641 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 642 \) )* \. # if led by a period... 643 (?: [\040\t] | \( 644 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 645 \) )* (?: 646 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 647 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 648 | \[ # [ 649 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 650 \] # ] 651 ) # ...further okay 652 )* 653 # address spec 654 (?: [\040\t] | \( 655 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 656 \) )* > # trailing > 657 # name and address 658 ) (?: [\040\t] | \( 659 (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* 660 \) )* # optional trailing comment 661 /x 662 Alan Other <user\@dom.ain> 663 <user\@dom.ain> 664 user\@dom.ain 665 \"A. Other\" <user.1234\@dom.ain> (a comment) 666 A. Other <user.1234\@dom.ain> (a comment) 667 \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay 668 A missing angle <user\@some.where 669 *** Failers 670 The quick brown fox 671 672 /[\040\t]* # Nab whitespace. 673 (?: 674 \( # ( 675 [^\\\x80-\xff\n\015()] * # normal* 676 (?: # ( 677 (?: \\ [^\x80-\xff] | 678 \( # ( 679 [^\\\x80-\xff\n\015()] * # normal* 680 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 681 \) # ) 682 ) # special 683 [^\\\x80-\xff\n\015()] * # normal* 684 )* # )* 685 \) # ) 686 [\040\t]* )* # If comment found, allow more spaces. 687 # optional leading comment 688 (?: 689 (?: 690 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 691 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 692 # Atom 693 | # or 694 " # " 695 [^\\\x80-\xff\n\015"] * # normal 696 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 697 " # " 698 # Quoted string 699 ) 700 [\040\t]* # Nab whitespace. 701 (?: 702 \( # ( 703 [^\\\x80-\xff\n\015()] * # normal* 704 (?: # ( 705 (?: \\ [^\x80-\xff] | 706 \( # ( 707 [^\\\x80-\xff\n\015()] * # normal* 708 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 709 \) # ) 710 ) # special 711 [^\\\x80-\xff\n\015()] * # normal* 712 )* # )* 713 \) # ) 714 [\040\t]* )* # If comment found, allow more spaces. 715 (?: 716 \. 717 [\040\t]* # Nab whitespace. 718 (?: 719 \( # ( 720 [^\\\x80-\xff\n\015()] * # normal* 721 (?: # ( 722 (?: \\ [^\x80-\xff] | 723 \( # ( 724 [^\\\x80-\xff\n\015()] * # normal* 725 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 726 \) # ) 727 ) # special 728 [^\\\x80-\xff\n\015()] * # normal* 729 )* # )* 730 \) # ) 731 [\040\t]* )* # If comment found, allow more spaces. 732 (?: 733 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 734 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 735 # Atom 736 | # or 737 " # " 738 [^\\\x80-\xff\n\015"] * # normal 739 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 740 " # " 741 # Quoted string 742 ) 743 [\040\t]* # Nab whitespace. 744 (?: 745 \( # ( 746 [^\\\x80-\xff\n\015()] * # normal* 747 (?: # ( 748 (?: \\ [^\x80-\xff] | 749 \( # ( 750 [^\\\x80-\xff\n\015()] * # normal* 751 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 752 \) # ) 753 ) # special 754 [^\\\x80-\xff\n\015()] * # normal* 755 )* # )* 756 \) # ) 757 [\040\t]* )* # If comment found, allow more spaces. 758 # additional words 759 )* 760 @ 761 [\040\t]* # Nab whitespace. 762 (?: 763 \( # ( 764 [^\\\x80-\xff\n\015()] * # normal* 765 (?: # ( 766 (?: \\ [^\x80-\xff] | 767 \( # ( 768 [^\\\x80-\xff\n\015()] * # normal* 769 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 770 \) # ) 771 ) # special 772 [^\\\x80-\xff\n\015()] * # normal* 773 )* # )* 774 \) # ) 775 [\040\t]* )* # If comment found, allow more spaces. 776 (?: 777 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 778 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 779 | 780 \[ # [ 781 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 782 \] # ] 783 ) 784 [\040\t]* # Nab whitespace. 785 (?: 786 \( # ( 787 [^\\\x80-\xff\n\015()] * # normal* 788 (?: # ( 789 (?: \\ [^\x80-\xff] | 790 \( # ( 791 [^\\\x80-\xff\n\015()] * # normal* 792 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 793 \) # ) 794 ) # special 795 [^\\\x80-\xff\n\015()] * # normal* 796 )* # )* 797 \) # ) 798 [\040\t]* )* # If comment found, allow more spaces. 799 # optional trailing comments 800 (?: 801 \. 802 [\040\t]* # Nab whitespace. 803 (?: 804 \( # ( 805 [^\\\x80-\xff\n\015()] * # normal* 806 (?: # ( 807 (?: \\ [^\x80-\xff] | 808 \( # ( 809 [^\\\x80-\xff\n\015()] * # normal* 810 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 811 \) # ) 812 ) # special 813 [^\\\x80-\xff\n\015()] * # normal* 814 )* # )* 815 \) # ) 816 [\040\t]* )* # If comment found, allow more spaces. 817 (?: 818 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 819 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 820 | 821 \[ # [ 822 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 823 \] # ] 824 ) 825 [\040\t]* # Nab whitespace. 826 (?: 827 \( # ( 828 [^\\\x80-\xff\n\015()] * # normal* 829 (?: # ( 830 (?: \\ [^\x80-\xff] | 831 \( # ( 832 [^\\\x80-\xff\n\015()] * # normal* 833 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 834 \) # ) 835 ) # special 836 [^\\\x80-\xff\n\015()] * # normal* 837 )* # )* 838 \) # ) 839 [\040\t]* )* # If comment found, allow more spaces. 840 # optional trailing comments 841 )* 842 # address 843 | # or 844 (?: 845 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 846 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 847 # Atom 848 | # or 849 " # " 850 [^\\\x80-\xff\n\015"] * # normal 851 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 852 " # " 853 # Quoted string 854 ) 855 # leading word 856 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] * # "normal" atoms and or spaces 857 (?: 858 (?: 859 \( # ( 860 [^\\\x80-\xff\n\015()] * # normal* 861 (?: # ( 862 (?: \\ [^\x80-\xff] | 863 \( # ( 864 [^\\\x80-\xff\n\015()] * # normal* 865 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 866 \) # ) 867 ) # special 868 [^\\\x80-\xff\n\015()] * # normal* 869 )* # )* 870 \) # ) 871 | 872 " # " 873 [^\\\x80-\xff\n\015"] * # normal 874 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 875 " # " 876 ) # "special" comment or quoted string 877 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] * # more "normal" 878 )* 879 < 880 [\040\t]* # Nab whitespace. 881 (?: 882 \( # ( 883 [^\\\x80-\xff\n\015()] * # normal* 884 (?: # ( 885 (?: \\ [^\x80-\xff] | 886 \( # ( 887 [^\\\x80-\xff\n\015()] * # normal* 888 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 889 \) # ) 890 ) # special 891 [^\\\x80-\xff\n\015()] * # normal* 892 )* # )* 893 \) # ) 894 [\040\t]* )* # If comment found, allow more spaces. 895 # < 896 (?: 897 @ 898 [\040\t]* # Nab whitespace. 899 (?: 900 \( # ( 901 [^\\\x80-\xff\n\015()] * # normal* 902 (?: # ( 903 (?: \\ [^\x80-\xff] | 904 \( # ( 905 [^\\\x80-\xff\n\015()] * # normal* 906 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 907 \) # ) 908 ) # special 909 [^\\\x80-\xff\n\015()] * # normal* 910 )* # )* 911 \) # ) 912 [\040\t]* )* # If comment found, allow more spaces. 913 (?: 914 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 915 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 916 | 917 \[ # [ 918 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 919 \] # ] 920 ) 921 [\040\t]* # Nab whitespace. 922 (?: 923 \( # ( 924 [^\\\x80-\xff\n\015()] * # normal* 925 (?: # ( 926 (?: \\ [^\x80-\xff] | 927 \( # ( 928 [^\\\x80-\xff\n\015()] * # normal* 929 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 930 \) # ) 931 ) # special 932 [^\\\x80-\xff\n\015()] * # normal* 933 )* # )* 934 \) # ) 935 [\040\t]* )* # If comment found, allow more spaces. 936 # optional trailing comments 937 (?: 938 \. 939 [\040\t]* # Nab whitespace. 940 (?: 941 \( # ( 942 [^\\\x80-\xff\n\015()] * # normal* 943 (?: # ( 944 (?: \\ [^\x80-\xff] | 945 \( # ( 946 [^\\\x80-\xff\n\015()] * # normal* 947 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 948 \) # ) 949 ) # special 950 [^\\\x80-\xff\n\015()] * # normal* 951 )* # )* 952 \) # ) 953 [\040\t]* )* # If comment found, allow more spaces. 954 (?: 955 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 956 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 957 | 958 \[ # [ 959 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 960 \] # ] 961 ) 962 [\040\t]* # Nab whitespace. 963 (?: 964 \( # ( 965 [^\\\x80-\xff\n\015()] * # normal* 966 (?: # ( 967 (?: \\ [^\x80-\xff] | 968 \( # ( 969 [^\\\x80-\xff\n\015()] * # normal* 970 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 971 \) # ) 972 ) # special 973 [^\\\x80-\xff\n\015()] * # normal* 974 )* # )* 975 \) # ) 976 [\040\t]* )* # If comment found, allow more spaces. 977 # optional trailing comments 978 )* 979 (?: , 980 [\040\t]* # Nab whitespace. 981 (?: 982 \( # ( 983 [^\\\x80-\xff\n\015()] * # normal* 984 (?: # ( 985 (?: \\ [^\x80-\xff] | 986 \( # ( 987 [^\\\x80-\xff\n\015()] * # normal* 988 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 989 \) # ) 990 ) # special 991 [^\\\x80-\xff\n\015()] * # normal* 992 )* # )* 993 \) # ) 994 [\040\t]* )* # If comment found, allow more spaces. 995 @ 996 [\040\t]* # Nab whitespace. 997 (?: 998 \( # ( 999 [^\\\x80-\xff\n\015()] * # normal* 1000 (?: # ( 1001 (?: \\ [^\x80-\xff] | 1002 \( # ( 1003 [^\\\x80-\xff\n\015()] * # normal* 1004 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1005 \) # ) 1006 ) # special 1007 [^\\\x80-\xff\n\015()] * # normal* 1008 )* # )* 1009 \) # ) 1010 [\040\t]* )* # If comment found, allow more spaces. 1011 (?: 1012 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1013 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1014 | 1015 \[ # [ 1016 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 1017 \] # ] 1018 ) 1019 [\040\t]* # Nab whitespace. 1020 (?: 1021 \( # ( 1022 [^\\\x80-\xff\n\015()] * # normal* 1023 (?: # ( 1024 (?: \\ [^\x80-\xff] | 1025 \( # ( 1026 [^\\\x80-\xff\n\015()] * # normal* 1027 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1028 \) # ) 1029 ) # special 1030 [^\\\x80-\xff\n\015()] * # normal* 1031 )* # )* 1032 \) # ) 1033 [\040\t]* )* # If comment found, allow more spaces. 1034 # optional trailing comments 1035 (?: 1036 \. 1037 [\040\t]* # Nab whitespace. 1038 (?: 1039 \( # ( 1040 [^\\\x80-\xff\n\015()] * # normal* 1041 (?: # ( 1042 (?: \\ [^\x80-\xff] | 1043 \( # ( 1044 [^\\\x80-\xff\n\015()] * # normal* 1045 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1046 \) # ) 1047 ) # special 1048 [^\\\x80-\xff\n\015()] * # normal* 1049 )* # )* 1050 \) # ) 1051 [\040\t]* )* # If comment found, allow more spaces. 1052 (?: 1053 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1054 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1055 | 1056 \[ # [ 1057 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 1058 \] # ] 1059 ) 1060 [\040\t]* # Nab whitespace. 1061 (?: 1062 \( # ( 1063 [^\\\x80-\xff\n\015()] * # normal* 1064 (?: # ( 1065 (?: \\ [^\x80-\xff] | 1066 \( # ( 1067 [^\\\x80-\xff\n\015()] * # normal* 1068 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1069 \) # ) 1070 ) # special 1071 [^\\\x80-\xff\n\015()] * # normal* 1072 )* # )* 1073 \) # ) 1074 [\040\t]* )* # If comment found, allow more spaces. 1075 # optional trailing comments 1076 )* 1077 )* # additional domains 1078 : 1079 [\040\t]* # Nab whitespace. 1080 (?: 1081 \( # ( 1082 [^\\\x80-\xff\n\015()] * # normal* 1083 (?: # ( 1084 (?: \\ [^\x80-\xff] | 1085 \( # ( 1086 [^\\\x80-\xff\n\015()] * # normal* 1087 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1088 \) # ) 1089 ) # special 1090 [^\\\x80-\xff\n\015()] * # normal* 1091 )* # )* 1092 \) # ) 1093 [\040\t]* )* # If comment found, allow more spaces. 1094 # optional trailing comments 1095 )? # optional route 1096 (?: 1097 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1098 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1099 # Atom 1100 | # or 1101 " # " 1102 [^\\\x80-\xff\n\015"] * # normal 1103 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 1104 " # " 1105 # Quoted string 1106 ) 1107 [\040\t]* # Nab whitespace. 1108 (?: 1109 \( # ( 1110 [^\\\x80-\xff\n\015()] * # normal* 1111 (?: # ( 1112 (?: \\ [^\x80-\xff] | 1113 \( # ( 1114 [^\\\x80-\xff\n\015()] * # normal* 1115 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1116 \) # ) 1117 ) # special 1118 [^\\\x80-\xff\n\015()] * # normal* 1119 )* # )* 1120 \) # ) 1121 [\040\t]* )* # If comment found, allow more spaces. 1122 (?: 1123 \. 1124 [\040\t]* # Nab whitespace. 1125 (?: 1126 \( # ( 1127 [^\\\x80-\xff\n\015()] * # normal* 1128 (?: # ( 1129 (?: \\ [^\x80-\xff] | 1130 \( # ( 1131 [^\\\x80-\xff\n\015()] * # normal* 1132 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1133 \) # ) 1134 ) # special 1135 [^\\\x80-\xff\n\015()] * # normal* 1136 )* # )* 1137 \) # ) 1138 [\040\t]* )* # If comment found, allow more spaces. 1139 (?: 1140 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1141 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1142 # Atom 1143 | # or 1144 " # " 1145 [^\\\x80-\xff\n\015"] * # normal 1146 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* 1147 " # " 1148 # Quoted string 1149 ) 1150 [\040\t]* # Nab whitespace. 1151 (?: 1152 \( # ( 1153 [^\\\x80-\xff\n\015()] * # normal* 1154 (?: # ( 1155 (?: \\ [^\x80-\xff] | 1156 \( # ( 1157 [^\\\x80-\xff\n\015()] * # normal* 1158 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1159 \) # ) 1160 ) # special 1161 [^\\\x80-\xff\n\015()] * # normal* 1162 )* # )* 1163 \) # ) 1164 [\040\t]* )* # If comment found, allow more spaces. 1165 # additional words 1166 )* 1167 @ 1168 [\040\t]* # Nab whitespace. 1169 (?: 1170 \( # ( 1171 [^\\\x80-\xff\n\015()] * # normal* 1172 (?: # ( 1173 (?: \\ [^\x80-\xff] | 1174 \( # ( 1175 [^\\\x80-\xff\n\015()] * # normal* 1176 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1177 \) # ) 1178 ) # special 1179 [^\\\x80-\xff\n\015()] * # normal* 1180 )* # )* 1181 \) # ) 1182 [\040\t]* )* # If comment found, allow more spaces. 1183 (?: 1184 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1185 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1186 | 1187 \[ # [ 1188 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 1189 \] # ] 1190 ) 1191 [\040\t]* # Nab whitespace. 1192 (?: 1193 \( # ( 1194 [^\\\x80-\xff\n\015()] * # normal* 1195 (?: # ( 1196 (?: \\ [^\x80-\xff] | 1197 \( # ( 1198 [^\\\x80-\xff\n\015()] * # normal* 1199 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1200 \) # ) 1201 ) # special 1202 [^\\\x80-\xff\n\015()] * # normal* 1203 )* # )* 1204 \) # ) 1205 [\040\t]* )* # If comment found, allow more spaces. 1206 # optional trailing comments 1207 (?: 1208 \. 1209 [\040\t]* # Nab whitespace. 1210 (?: 1211 \( # ( 1212 [^\\\x80-\xff\n\015()] * # normal* 1213 (?: # ( 1214 (?: \\ [^\x80-\xff] | 1215 \( # ( 1216 [^\\\x80-\xff\n\015()] * # normal* 1217 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1218 \) # ) 1219 ) # special 1220 [^\\\x80-\xff\n\015()] * # normal* 1221 )* # )* 1222 \) # ) 1223 [\040\t]* )* # If comment found, allow more spaces. 1224 (?: 1225 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... 1226 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom 1227 | 1228 \[ # [ 1229 (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff 1230 \] # ] 1231 ) 1232 [\040\t]* # Nab whitespace. 1233 (?: 1234 \( # ( 1235 [^\\\x80-\xff\n\015()] * # normal* 1236 (?: # ( 1237 (?: \\ [^\x80-\xff] | 1238 \( # ( 1239 [^\\\x80-\xff\n\015()] * # normal* 1240 (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* 1241 \) # ) 1242 ) # special 1243 [^\\\x80-\xff\n\015()] * # normal* 1244 )* # )* 1245 \) # ) 1246 [\040\t]* )* # If comment found, allow more spaces. 1247 # optional trailing comments 1248 )* 1249 # address spec 1250 > # > 1251 # name and address 1252 ) 1253 /x 1254 Alan Other <user\@dom.ain> 1255 <user\@dom.ain> 1256 user\@dom.ain 1257 \"A. Other\" <user.1234\@dom.ain> (a comment) 1258 A. Other <user.1234\@dom.ain> (a comment) 1259 \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay 1260 A missing angle <user\@some.where 1261 *** Failers 1262 The quick brown fox 1263 1264 /abc\0def\00pqr\000xyz\0000AB/ 1265 abc\0def\00pqr\000xyz\0000AB 1266 abc456 abc\0def\00pqr\000xyz\0000ABCDE 1267 1268 /abc\x0def\x00pqr\x000xyz\x0000AB/ 1269 abc\x0def\x00pqr\x000xyz\x0000AB 1270 abc456 abc\x0def\x00pqr\x000xyz\x0000ABCDE 1271 1272 /^[\000-\037]/ 1273 \0A 1274 \01B 1275 \037C 1276 1277 /\0*/ 1278 \0\0\0\0 1279 1280 /A\x0{2,3}Z/ 1281 The A\x0\x0Z 1282 An A\0\x0\0Z 1283 *** Failers 1284 A\0Z 1285 A\0\x0\0\x0Z 1286 1287 /^(cow|)\1(bell)/ 1288 cowcowbell 1289 bell 1290 *** Failers 1291 cowbell 1292 1293 /^\s/ 1294 \040abc 1295 \x0cabc 1296 \nabc 1297 \rabc 1298 \tabc 1299 *** Failers 1300 abc 1301 1302 /^a b 1303 c/x 1305 abc 1306 1307 /^(a|)\1*b/ 1308 ab 1309 aaaab 1310 b 1311 *** Failers 1312 acb 1313 1314 /^(a|)\1+b/ 1315 aab 1316 aaaab 1317 b 1318 *** Failers 1319 ab 1320 1321 /^(a|)\1?b/ 1322 ab 1323 aab 1324 b 1325 *** Failers 1326 acb 1327 1328 /^(a|)\1{2}b/ 1329 aaab 1330 b 1331 *** Failers 1332 ab 1333 aab 1334 aaaab 1335 1336 /^(a|)\1{2,3}b/ 1337 aaab 1338 aaaab 1339 b 1340 *** Failers 1341 ab 1342 aab 1343 aaaaab 1344 1345 /ab{1,3}bc/ 1346 abbbbc 1347 abbbc 1348 abbc 1349 *** Failers 1350 abc 1351 abbbbbc 1352 1353 /([^.]*)\.([^:]*):[T ]+(.*)/ 1354 track1.title:TBlah blah blah 1355 1356 /([^.]*)\.([^:]*):[T ]+(.*)/i 1357 track1.title:TBlah blah blah 1358 1359 /([^.]*)\.([^:]*):[t ]+(.*)/i 1360 track1.title:TBlah blah blah 1361 1362 /^[W-c]+$/ 1363 WXY_^abc 1364 *** Failers 1365 wxy 1366 1367 /^[W-c]+$/i 1368 WXY_^abc 1369 wxy_^ABC 1370 1371 /^[\x3f-\x5F]+$/i 1372 WXY_^abc 1373 wxy_^ABC 1374 1375 /^abc$/m 1376 abc 1377 qqq\nabc 1378 abc\nzzz 1379 qqq\nabc\nzzz 1380 1381 /^abc$/ 1382 abc 1383 *** Failers 1384 qqq\nabc 1385 abc\nzzz 1386 qqq\nabc\nzzz 1387 1388 /\Aabc\Z/m 1389 abc 1390 abc\n 1391 *** Failers 1392 qqq\nabc 1393 abc\nzzz 1394 qqq\nabc\nzzz 1395 1396 /\A(.)*\Z/s 1397 abc\ndef 1398 1399 /\A(.)*\Z/m 1400 *** Failers 1401 abc\ndef 1402 1403 /(?:b)|(?::+)/ 1404 b::c 1405 c::b 1406 1407 /[-az]+/ 1408 az- 1409 *** Failers 1410 b 1411 1412 /[az-]+/ 1413 za- 1414 *** Failers 1415 b 1416 1417 /[a\-z]+/ 1418 a-z 1419 *** Failers 1420 b 1421 1422 /[a-z]+/ 1423 abcdxyz 1424 1425 /[\d-]+/ 1426 12-34 1427 *** Failers 1428 aaa 1429 1430 /[\d-z]+/ 1431 12-34z 1432 *** Failers 1433 aaa 1434 1435 /\x5c/ 1436 \\ 1437 1438 /\x20Z/ 1439 the Zoo 1440 *** Failers 1441 Zulu 1442 1443 /(abc)\1/i 1444 abcabc 1445 ABCabc 1446 abcABC 1447 1448 /ab{3cd/ 1449 ab{3cd 1450 1451 /ab{3,cd/ 1452 ab{3,cd 1453 1454 /ab{3,4a}cd/ 1455 ab{3,4a}cd 1456 1457 /{4,5a}bc/ 1458 {4,5a}bc 1459 1460 /abc$/ 1461 abc 1462 abc\n 1463 *** Failers 1464 abc\ndef 1465 1466 /(abc)\123/ 1467 abc\x53 1468 1469 /(abc)\223/ 1470 abc\x93 1471 1472 /(abc)\323/ 1473 abc\xd3 1474 1475 /(abc)\100/ 1476 abc\x40 1477 abc\100 1478 1479 /(abc)\1000/ 1480 abc\x400 1481 abc\x40\x30 1482 abc\1000 1483 abc\100\x30 1484 abc\100\060 1485 abc\100\60 1486 1487 /abc\81/ 1488 abc\081 1489 abc\0\x38\x31 1490 1491 /abc\91/ 1492 abc\091 1493 abc\0\x39\x31 1494 1495 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\12\123/ 1496 abcdefghijkllS 1497 1498 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\12\123/ 1499 abcdefghijk\12S 1500 1501 /ab\idef/ 1502 abidef 1503 1504 /a{0}bc/ 1505 bc 1506 1507 /(a|(bc)){0,0}?xyz/ 1508 xyz 1509 1510 /abc[\10]de/ 1511 abc\010de 1512 1513 /abc[\1]de/ 1514 abc\1de 1515 1516 /(abc)[\1]de/ 1517 abc\1de 1518 1519 /(?s)a.b/ 1520 a\nb 1521 1522 /^([^a])([^\b])([^c]*)([^d]{3,4})/ 1523 baNOTccccd 1524 baNOTcccd 1525 baNOTccd 1526 bacccd 1527 *** Failers 1528 anything 1529 b\bc 1530 baccd 1531 1532 /[^a]/ 1533 Abc 1534 1535 /[^a]/i 1536 Abc 1537 1538 /[^a]+/ 1539 AAAaAbc 1540 1541 /[^a]+/i 1542 AAAaAbc 1543 1544 /[^a]+/ 1545 bbb\nccc 1546 1547 /[^k]$/ 1548 abc 1549 *** Failers 1550 abk 1551 1552 /[^k]{2,3}$/ 1553 abc 1554 kbc 1555 kabc 1556 *** Failers 1557 abk 1558 akb 1559 akk 1560 1561 /^\d{8,}\@.+[^k]$/ 1562 12345678\@a.b.c.d 1563 123456789\@x.y.z 1564 *** Failers 1565 12345678\@x.y.uk 1566 1234567\@a.b.c.d 1567 1568 /(a)\1{8,}/ 1569 aaaaaaaaa 1570 aaaaaaaaaa 1571 *** Failers 1572 aaaaaaa 1573 1574 /[^a]/ 1575 aaaabcd 1576 aaAabcd 1577 1578 /[^a]/i 1579 aaaabcd 1580 aaAabcd 1581 1582 /[^az]/ 1583 aaaabcd 1584 aaAabcd 1585 1586 /[^az]/i 1587 aaaabcd 1588 aaAabcd 1589 1590 /\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/ 1591 \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 1592 1593 /P[^*]TAIRE[^*]{1,6}?LL/ 1594 xxxxxxxxxxxPSTAIREISLLxxxxxxxxx 1595 1596 /P[^*]TAIRE[^*]{1,}?LL/ 1597 xxxxxxxxxxxPSTAIREISLLxxxxxxxxx 1598 1599 /(\.\d\d[1-9]?)\d+/ 1600 1.230003938 1601 1.875000282 1602 1.235 1603 1604 /(\.\d\d((?=0)|\d(?=\d)))/ 1605 1.230003938 1606 1.875000282 1607 *** Failers 1608 1.235 1609 1610 /a(?)b/ 1611 ab 1612 1613 /\b(foo)\s+(\w+)/i 1614 Food is on the foo table 1615 1616 /foo(.*)bar/ 1617 The food is under the bar in the barn. 1618 1619 /foo(.*?)bar/ 1620 The food is under the bar in the barn. 1621 1622 /(.*)(\d*)/ 1623 I have 2 numbers: 53147 1624 1625 /(.*)(\d+)/ 1626 I have 2 numbers: 53147 1627 1628 /(.*?)(\d*)/ 1629 I have 2 numbers: 53147 1630 1631 /(.*?)(\d+)/ 1632 I have 2 numbers: 53147 1633 1634 /(.*)(\d+)$/ 1635 I have 2 numbers: 53147 1636 1637 /(.*?)(\d+)$/ 1638 I have 2 numbers: 53147 1639 1640 /(.*)\b(\d+)$/ 1641 I have 2 numbers: 53147 1642 1643 /(.*\D)(\d+)$/ 1644 I have 2 numbers: 53147 1645 1646 /^\D*(?!123)/ 1647 ABC123 1648 1649 /^(\D*)(?=\d)(?!123)/ 1650 ABC445 1651 *** Failers 1652 ABC123 1653 1654 /^[W-]46]/ 1655 W46]789 1656 -46]789 1657 *** Failers 1658 Wall 1659 Zebra 1660 42 1661 [abcd] 1662 ]abcd[ 1663 1664 /^[W-\]46]/ 1665 W46]789 1666 Wall 1667 Zebra 1668 Xylophone 1669 42 1670 [abcd] 1671 ]abcd[ 1672 \\backslash 1673 *** Failers 1674 -46]789 1675 well 1676 1677 /\d\d\/\d\d\/\d\d\d\d/ 1678 01/01/2000 1679 1680 /word (?:[a-zA-Z0-9]+ ){0,10}otherword/ 1681 word cat dog elephant mussel cow horse canary baboon snake shark otherword 1682 word cat dog elephant mussel cow horse canary baboon snake shark 1683 1684 /word (?:[a-zA-Z0-9]+ ){0,300}otherword/ 1685 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 1686 1687 /^(a){0,0}/ 1688 bcd 1689 abc 1690 aab 1691 1692 /^(a){0,1}/ 1693 bcd 1694 abc 1695 aab 1696 1697 /^(a){0,2}/ 1698 bcd 1699 abc 1700 aab 1701 1702 /^(a){0,3}/ 1703 bcd 1704 abc 1705 aab 1706 aaa 1707 1708 /^(a){0,}/ 1709 bcd 1710 abc 1711 aab 1712 aaa 1713 aaaaaaaa 1714 1715 /^(a){1,1}/ 1716 bcd 1717 abc 1718 aab 1719 1720 /^(a){1,2}/ 1721 bcd 1722 abc 1723 aab 1724 1725 /^(a){1,3}/ 1726 bcd 1727 abc 1728 aab 1729 aaa 1730 1731 /^(a){1,}/ 1732 bcd 1733 abc 1734 aab 1735 aaa 1736 aaaaaaaa 1737 1738 /.*\.gif/ 1739 borfle\nbib.gif\nno 1740 1741 /.{0,}\.gif/ 1742 borfle\nbib.gif\nno 1743 1744 /.*\.gif/m 1745 borfle\nbib.gif\nno 1746 1747 /.*\.gif/s 1748 borfle\nbib.gif\nno 1749 1750 /.*\.gif/ms 1751 borfle\nbib.gif\nno 1752 1753 /.*$/ 1754 borfle\nbib.gif\nno 1755 1756 /.*$/m 1757 borfle\nbib.gif\nno 1758 1759 /.*$/s 1760 borfle\nbib.gif\nno 1761 1762 /.*$/ms 1763 borfle\nbib.gif\nno 1764 1765 /.*$/ 1766 borfle\nbib.gif\nno\n 1767 1768 /.*$/m 1769 borfle\nbib.gif\nno\n 1770 1771 /.*$/s 1772 borfle\nbib.gif\nno\n 1773 1774 /.*$/ms 1775 borfle\nbib.gif\nno\n 1776 1777 /(.*X|^B)/ 1778 abcde\n1234Xyz 1779 BarFoo 1780 *** Failers 1781 abcde\nBar 1782 1783 /(.*X|^B)/m 1784 abcde\n1234Xyz 1785 BarFoo 1786 abcde\nBar 1787 1788 /(.*X|^B)/s 1789 abcde\n1234Xyz 1790 BarFoo 1791 *** Failers 1792 abcde\nBar 1793 1794 /(.*X|^B)/ms 1795 abcde\n1234Xyz 1796 BarFoo 1797 abcde\nBar 1798 1799 /(?s)(.*X|^B)/ 1800 abcde\n1234Xyz 1801 BarFoo 1802 *** Failers 1803 abcde\nBar 1804 1805 /(?s:.*X|^B)/ 1806 abcde\n1234Xyz 1807 BarFoo 1808 *** Failers 1809 abcde\nBar 1810 1811 /^.*B/ 1812 **** Failers 1813 abc\nB 1814 1815 /(?s)^.*B/ 1816 abc\nB 1817 1818 /(?m)^.*B/ 1819 abc\nB 1820 1821 /(?ms)^.*B/ 1822 abc\nB 1823 1824 /(?ms)^B/ 1825 abc\nB 1826 1827 /(?s)B$/ 1828 B\n 1829 1830 /^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]/ 1831 123456654321 1832 1833 /^\d\d\d\d\d\d\d\d\d\d\d\d/ 1834 123456654321 1835 1836 /^[\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d]/ 1837 123456654321 1838 1839 /^[abc]{12}/ 1840 abcabcabcabc 1841 1842 /^[a-c]{12}/ 1843 abcabcabcabc 1844 1845 /^(a|b|c){12}/ 1846 abcabcabcabc 1847 1848 /^[abcdefghijklmnopqrstuvwxy0123456789]/ 1849 n 1850 *** Failers 1851 z 1852 1853 /abcde{0,0}/ 1854 abcd 1855 *** Failers 1856 abce 1857 1858 /ab[cd]{0,0}e/ 1859 abe 1860 *** Failers 1861 abcde 1862 1863 /ab(c){0,0}d/ 1864 abd 1865 *** Failers 1866 abcd 1867 1868 /a(b*)/ 1869 a 1870 ab 1871 abbbb 1872 *** Failers 1873 bbbbb 1874 1875 /ab\d{0}e/ 1876 abe 1877 *** Failers 1878 ab1e 1879 1880 /"([^\\"]+|\\.)*"/ 1881 the \"quick\" brown fox 1882 \"the \\\"quick\\\" brown fox\" 1883 1884 /.*?/g+ 1885 abc 1886 1887 /\b/g+ 1888 abc 1889 1890 /\b/+g 1891 abc 1892 1893 //g 1894 abc 1895 1896 /<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 1897 <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> 1898 1899 /a[^a]b/ 1900 acb 1901 a\nb 1902 1903 /a.b/ 1904 acb 1905 *** Failers 1906 a\nb 1907 1908 /a[^a]b/s 1909 acb 1910 a\nb 1911 1912 /a.b/s 1913 acb 1914 a\nb 1915 1916 /^(b+?|a){1,2}?c/ 1917 bac 1918 bbac 1919 bbbac 1920 bbbbac 1921 bbbbbac 1922 1923 /^(b+|a){1,2}?c/ 1924 bac 1925 bbac 1926 bbbac 1927 bbbbac 1928 bbbbbac 1929 1930 /(?!\A)x/m 1931 x\nb\n 1932 a\bx\n 1933 1934 /\x0{ab}/ 1935 \0{ab} 1936 1937 /(A|B)*?CD/ 1938 CD 1939 1940 /(A|B)*CD/ 1941 CD 1942 1943 /(AB)*?\1/ 1944 ABABAB 1945 1946 /(AB)*\1/ 1947 ABABAB 1948 1949 /(?<!bar)foo/ 1950 foo 1951 catfood 1952 arfootle 1953 rfoosh 1954 *** Failers 1955 barfoo 1956 towbarfoo 1957 1958 /\w{3}(?<!bar)foo/ 1959 catfood 1960 *** Failers 1961 foo 1962 barfoo 1963 towbarfoo 1964 1965 /(?<=(foo)a)bar/ 1966 fooabar 1967 *** Failers 1968 bar 1969 foobbar 1970 1971 /\Aabc\z/m 1972 abc 1973 *** Failers 1974 abc\n 1975 qqq\nabc 1976 abc\nzzz 1977 qqq\nabc\nzzz 1978 1979 "(?>.*/)foo" 1980 /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/it/you/see/ 1981 1982 "(?>.*/)foo" 1983 /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/and/foo 1984 1985 /(?>(\.\d\d[1-9]?))\d+/ 1986 1.230003938 1987 1.875000282 1988 *** Failers 1989 1.235 1990 1991 /^((?>\w+)|(?>\s+))*$/ 1992 now is the time for all good men to come to the aid of the party 1993 *** Failers 1994 this is not a line with only words and spaces! 1995 1996 /(\d+)(\w)/ 1997 12345a 1998 12345+ 1999 2000 /((?>\d+))(\w)/ 2001 12345a 2002 *** Failers 2003 12345+ 2004 2005 /(?>a+)b/ 2006 aaab 2007 2008 /((?>a+)b)/ 2009 aaab 2010 2011 /(?>(a+))b/ 2012 aaab 2013 2014 /(?>b)+/ 2015 aaabbbccc 2016 2017 /(?>a+|b+|c+)*c/ 2018 aaabbbbccccd 2019 2020 /((?>[^()]+)|\([^()]*\))+/ 2021 ((abc(ade)ufh()()x 2022 2023 /\(((?>[^()]+)|\([^()]+\))+\)/ 2024 (abc) 2025 (abc(def)xyz) 2026 *** Failers 2027 ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 2028 2029 /a(?-i)b/i 2030 ab 2031 Ab 2032 *** Failers 2033 aB 2034 AB 2035 2036 /(a (?x)b c)d e/ 2037 a bcd e 2038 *** Failers 2039 a b cd e 2040 abcd e 2041 a bcde 2042 2043 /(a b(?x)c d (?-x)e f)/ 2044 a bcde f 2045 *** Failers 2046 abcdef 2047 2048 /(a(?i)b)c/ 2049 abc 2050 aBc 2051 *** Failers 2052 abC 2053 aBC 2054 Abc 2055 ABc 2056 ABC 2057 AbC 2058 2059 /a(?i:b)c/ 2060 abc 2061 aBc 2062 *** Failers 2063 ABC 2064 abC 2065 aBC 2066 2067 /a(?i:b)*c/ 2068 aBc 2069 aBBc 2070 *** Failers 2071 aBC 2072 aBBC 2073 2074 /a(?=b(?i)c)\w\wd/ 2075 abcd 2076 abCd 2077 *** Failers 2078 aBCd 2079 abcD 2080 2081 /(?s-i:more.*than).*million/i 2082 more than million 2083 more than MILLION 2084 more \n than Million 2085 *** Failers 2086 MORE THAN MILLION 2087 more \n than \n million 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 /(?>a(?i)b+)+c/ 2098 abc 2099 aBbc 2100 aBBc 2101 *** Failers 2102 Abc 2103 abAb 2104 abbC 2105 2106 /(?=a(?i)b)\w\wc/ 2107 abc 2108 aBc 2109 *** Failers 2110 Ab 2111 abC 2112 aBC 2113 2114 /(?<=a(?i)b)(\w\w)c/ 2115 abxxc 2116 aBxxc 2117 *** Failers 2118 Abxxc 2119 ABxxc 2120 abxxC 2121 2122 /(?:(a)|b)(?(1)A|B)/ 2123 aA 2124 bB 2125 *** Failers 2126 aB 2127 bA 2128 2129 /^(a)?(?(1)a|b)+$/ 2130 aa 2131 b 2132 bb 2133 *** Failers 2134 ab 2135 2136 /^(?(?=abc)\w{3}:|\d\d)$/ 2137 abc: 2138 12 2139 *** Failers 2140 123 2141 xyz 2142 2143 /^(?(?!abc)\d\d|\w{3}:)$/ 2144 abc: 2145 12 2146 *** Failers 2147 123 2148 xyz 2149 2150 /(?(?<=foo)bar|cat)/ 2151 foobar 2152 cat 2153 fcat 2154 focat 2155 *** Failers 2156 foocat 2157 2158 /(?(?<!foo)cat|bar)/ 2159 foobar 2160 cat 2161 fcat 2162 focat 2163 *** Failers 2164 foocat 2165 2166 /( \( )? [^()]+ (?(1) \) |) /x 2167 abcd 2168 (abcd) 2169 the quick (abcd) fox 2170 (abcd 2171 2172 /( \( )? [^()]+ (?(1) \) ) /x 2173 abcd 2174 (abcd) 2175 the quick (abcd) fox 2176 (abcd 2177 2178 /^(?(2)a|(1)(2))+$/ 2179 12 2180 12a 2181 12aa 2182 *** Failers 2183 1234 2184 2185 /((?i)blah)\s+\1/ 2186 blah blah 2187 BLAH BLAH 2188 Blah Blah 2189 blaH blaH 2190 *** Failers 2191 blah BLAH 2192 Blah blah 2193 blaH blah 2194 2195 /((?i)blah)\s+(?i:\1)/ 2196 blah blah 2197 BLAH BLAH 2198 Blah Blah 2199 blaH blaH 2200 blah BLAH 2201 Blah blah 2202 blaH blah 2203 2204 /(?>a*)*/ 2205 a 2206 aa 2207 aaaa 2208 2209 /(abc|)+/ 2210 abc 2211 abcabc 2212 abcabcabc 2213 xyz 2214 2215 /([a]*)*/ 2216 a 2217 aaaaa 2218 2219 /([ab]*)*/ 2220 a 2221 b 2222 ababab 2223 aaaabcde 2224 bbbb 2225 2226 /([^a]*)*/ 2227 b 2228 bbbb 2229 aaa 2230 2231 /([^ab]*)*/ 2232 cccc 2233 abab 2234 2235 /([a]*?)*/ 2236 a 2237 aaaa 2238 2239 /([ab]*?)*/ 2240 a 2241 b 2242 abab 2243 baba 2244 2245 /([^a]*?)*/ 2246 b 2247 bbbb 2248 aaa 2249 2250 /([^ab]*?)*/ 2251 c 2252 cccc 2253 baba 2254 2255 /(?>a*)*/ 2256 a 2257 aaabcde 2258 2259 /((?>a*))*/ 2260 aaaaa 2261 aabbaa 2262 2263 /((?>a*?))*/ 2264 aaaaa 2265 aabbaa 2266 2267 /(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /x 2268 12-sep-98 2269 12-09-98 2270 *** Failers 2271 sep-12-98 2272 2273 /(?<=(foo))bar\1/ 2274 foobarfoo 2275 foobarfootling 2276 *** Failers 2277 foobar 2278 barfoo 2279 2280 /(?i:saturday|sunday)/ 2281 saturday 2282 sunday 2283 Saturday 2284 Sunday 2285 SATURDAY 2286 SUNDAY 2287 SunDay 2288 2289 /(a(?i)bc|BB)x/ 2290 abcx 2291 aBCx 2292 bbx 2293 BBx 2294 *** Failers 2295 abcX 2296 aBCX 2297 bbX 2298 BBX 2299 2300 /^([ab](?i)[cd]|[ef])/ 2301 ac 2302 aC 2303 bD 2304 elephant 2305 Europe 2306 frog 2307 France 2308 *** Failers 2309 Africa 2310 2311 /^(ab|a(?i)[b-c](?m-i)d|x(?i)y|z)/ 2312 ab 2313 aBd 2314 xy 2315 xY 2316 zebra 2317 Zambesi 2318 *** Failers 2319 aCD 2320 XY 2321 2322 /(?<=foo\n)^bar/m 2323 foo\nbar 2324 *** Failers 2325 bar 2326 baz\nbar 2327 2328 /(?<=(?<!foo)bar)baz/ 2329 barbaz 2330 barbarbaz 2331 koobarbaz 2332 *** Failers 2333 baz 2334 foobarbaz 2335 2336 /The cases of aaaa and aaaaaa are missed out below because Perl does things/ 2337 /differently. We know that odd, and maybe incorrect, things happen with/ 2338 /recursive references in Perl, as far as 5.11.3 - see some stuff in test #2./ 2339 2340 /^(a\1?){4}$/ 2341 a 2342 aa 2343 aaa 2344 aaaaa 2345 aaaaaaa 2346 aaaaaaaa 2347 aaaaaaaaa 2348 aaaaaaaaaa 2349 aaaaaaaaaaa 2350 aaaaaaaaaaaa 2351 aaaaaaaaaaaaa 2352 aaaaaaaaaaaaaa 2353 aaaaaaaaaaaaaaa 2354 aaaaaaaaaaaaaaaa 2355 2356 /^(a\1?)(a\1?)(a\2?)(a\3?)$/ 2357 a 2358 aa 2359 aaa 2360 aaaa 2361 aaaaa 2362 aaaaaa 2363 aaaaaaa 2364 aaaaaaaa 2365 aaaaaaaaa 2366 aaaaaaaaaa 2367 aaaaaaaaaaa 2368 aaaaaaaaaaaa 2369 aaaaaaaaaaaaa 2370 aaaaaaaaaaaaaa 2371 aaaaaaaaaaaaaaa 2372 aaaaaaaaaaaaaaaa 2373 2374 /The following tests are taken from the Perl 5.005 test suite; some of them/ 2375 /are compatible with 5.004, but I'd rather not have to sort them out./ 2376 2377 /abc/ 2378 abc 2379 xabcy 2380 ababc 2381 *** Failers 2382 xbc 2383 axc 2384 abx 2385 2386 /ab*c/ 2387 abc 2388 2389 /ab*bc/ 2390 abc 2391 abbc 2392 abbbbc 2393 2394 /.{1}/ 2395 abbbbc 2396 2397 /.{3,4}/ 2398 abbbbc 2399 2400 /ab{0,}bc/ 2401 abbbbc 2402 2403 /ab+bc/ 2404 abbc 2405 *** Failers 2406 abc 2407 abq 2408 2409 /ab{1,}bc/ 2410 2411 /ab+bc/ 2412 abbbbc 2413 2414 /ab{1,}bc/ 2415 abbbbc 2416 2417 /ab{1,3}bc/ 2418 abbbbc 2419 2420 /ab{3,4}bc/ 2421 abbbbc 2422 2423 /ab{4,5}bc/ 2424 *** Failers 2425 abq 2426 abbbbc 2427 2428 /ab?bc/ 2429 abbc 2430 abc 2431 2432 /ab{0,1}bc/ 2433 abc 2434 2435 /ab?bc/ 2436 2437 /ab?c/ 2438 abc 2439 2440 /ab{0,1}c/ 2441 abc 2442 2443 /^abc$/ 2444 abc 2445 *** Failers 2446 abbbbc 2447 abcc 2448 2449 /^abc/ 2450 abcc 2451 2452 /^abc$/ 2453 2454 /abc$/ 2455 aabc 2456 *** Failers 2457 aabc 2458 aabcd 2459 2460 /^/ 2461 abc 2462 2463 /$/ 2464 abc 2465 2466 /a.c/ 2467 abc 2468 axc 2469 2470 /a.*c/ 2471 axyzc 2472 2473 /a[bc]d/ 2474 abd 2475 *** Failers 2476 axyzd 2477 abc 2478 2479 /a[b-d]e/ 2480 ace 2481 2482 /a[b-d]/ 2483 aac 2484 2485 /a[-b]/ 2486 a- 2487 2488 /a[b-]/ 2489 a- 2490 2491 /a]/ 2492 a] 2493 2494 /a[]]b/ 2495 a]b 2496 2497 /a[^bc]d/ 2498 aed 2499 *** Failers 2500 abd 2501 abd 2502 2503 /a[^-b]c/ 2504 adc 2505 2506 /a[^]b]c/ 2507 adc 2508 *** Failers 2509 a-c 2510 a]c 2511 2512 /\ba\b/ 2513 a- 2514 -a 2515 -a- 2516 2517 /\by\b/ 2518 *** Failers 2519 xy 2520 yz 2521 xyz 2522 2523 /\Ba\B/ 2524 *** Failers 2525 a- 2526 -a 2527 -a- 2528 2529 /\By\b/ 2530 xy 2531 2532 /\by\B/ 2533 yz 2534 2535 /\By\B/ 2536 xyz 2537 2538 /\w/ 2539 a 2540 2541 /\W/ 2542 - 2543 *** Failers 2544 - 2545 a 2546 2547 /a\sb/ 2548 a b 2549 2550 /a\Sb/ 2551 a-b 2552 *** Failers 2553 a-b 2554 a b 2555 2556 /\d/ 2557 1 2558 2559 /\D/ 2560 - 2561 *** Failers 2562 - 2563 1 2564 2565 /[\w]/ 2566 a 2567 2568 /[\W]/ 2569 - 2570 *** Failers 2571 - 2572 a 2573 2574 /a[\s]b/ 2575 a b 2576 2577 /a[\S]b/ 2578 a-b 2579 *** Failers 2580 a-b 2581 a b 2582 2583 /[\d]/ 2584 1 2585 2586 /[\D]/ 2587 - 2588 *** Failers 2589 - 2590 1 2591 2592 /ab|cd/ 2593 abc 2594 abcd 2595 2596 /()ef/ 2597 def 2598 2599 /$b/ 2600 2601 /a\(b/ 2602 a(b 2603 2604 /a\(*b/ 2605 ab 2606 a((b 2607 2608 /a\\b/ 2609 a\b 2610 2611 /((a))/ 2612 abc 2613 2614 /(a)b(c)/ 2615 abc 2616 2617 /a+b+c/ 2618 aabbabc 2619 2620 /a{1,}b{1,}c/ 2621 aabbabc 2622 2623 /a.+?c/ 2624 abcabc 2625 2626 /(a+|b)*/ 2627 ab 2628 2629 /(a+|b){0,}/ 2630 ab 2631 2632 /(a+|b)+/ 2633 ab 2634 2635 /(a+|b){1,}/ 2636 ab 2637 2638 /(a+|b)?/ 2639 ab 2640 2641 /(a+|b){0,1}/ 2642 ab 2643 2644 /[^ab]*/ 2645 cde 2646 2647 /abc/ 2648 *** Failers 2649 b 2650 2651 2652 /a*/ 2653 2654 2655 /([abc])*d/ 2656 abbbcd 2657 2658 /([abc])*bcd/ 2659 abcd 2660 2661 /a|b|c|d|e/ 2662 e 2663 2664 /(a|b|c|d|e)f/ 2665 ef 2666 2667 /abcd*efg/ 2668 abcdefg 2669 2670 /ab*/ 2671 xabyabbbz 2672 xayabbbz 2673 2674 /(ab|cd)e/ 2675 abcde 2676 2677 /[abhgefdc]ij/ 2678 hij 2679 2680 /^(ab|cd)e/ 2681 2682 /(abc|)ef/ 2683 abcdef 2684 2685 /(a|b)c*d/ 2686 abcd 2687 2688 /(ab|ab*)bc/ 2689 abc 2690 2691 /a([bc]*)c*/ 2692 abc 2693 2694 /a([bc]*)(c*d)/ 2695 abcd 2696 2697 /a([bc]+)(c*d)/ 2698 abcd 2699 2700 /a([bc]*)(c+d)/ 2701 abcd 2702 2703 /a[bcd]*dcdcde/ 2704 adcdcde 2705 2706 /a[bcd]+dcdcde/ 2707 *** Failers 2708 abcde 2709 adcdcde 2710 2711 /(ab|a)b*c/ 2712 abc 2713 2714 /((a)(b)c)(d)/ 2715 abcd 2716 2717 /[a-zA-Z_][a-zA-Z0-9_]*/ 2718 alpha 2719 2720 /^a(bc+|b[eh])g|.h$/ 2721 abh 2722 2723 /(bc+d$|ef*g.|h?i(j|k))/ 2724 effgz 2725 ij 2726 reffgz 2727 *** Failers 2728 effg 2729 bcdd 2730 2731 /((((((((((a))))))))))/ 2732 a 2733 2734 /((((((((((a))))))))))\10/ 2735 aa 2736 2737 /(((((((((a)))))))))/ 2738 a 2739 2740 /multiple words of text/ 2741 *** Failers 2742 aa 2743 uh-uh 2744 2745 /multiple words/ 2746 multiple words, yeah 2747 2748 /(.*)c(.*)/ 2749 abcde 2750 2751 /\((.*), (.*)\)/ 2752 (a, b) 2753 2754 /[k]/ 2755 2756 /abcd/ 2757 abcd 2758 2759 /a(bc)d/ 2760 abcd 2761 2762 /a[-]?c/ 2763 ac 2764 2765 /(abc)\1/ 2766 abcabc 2767 2768 /([a-c]*)\1/ 2769 abcabc 2770 2771 /(a)|\1/ 2772 a 2773 *** Failers 2774 ab 2775 x 2776 2777 /(([a-c])b*?\2)*/ 2778 ababbbcbc 2779 2780 /(([a-c])b*?\2){3}/ 2781 ababbbcbc 2782 2783 /((\3|b)\2(a)x)+/ 2784 aaaxabaxbaaxbbax 2785 2786 /((\3|b)\2(a)){2,}/ 2787 bbaababbabaaaaabbaaaabba 2788 2789 /abc/i 2790 ABC 2791 XABCY 2792 ABABC 2793 *** Failers 2794 aaxabxbaxbbx 2795 XBC 2796 AXC 2797 ABX 2798 2799 /ab*c/i 2800 ABC 2801 2802 /ab*bc/i 2803 ABC 2804 ABBC 2805 2806 /ab*?bc/i 2807 ABBBBC 2808 2809 /ab{0,}?bc/i 2810 ABBBBC 2811 2812 /ab+?bc/i 2813 ABBC 2814 2815 /ab+bc/i 2816 *** Failers 2817 ABC 2818 ABQ 2819 2820 /ab{1,}bc/i 2821 2822 /ab+bc/i 2823 ABBBBC 2824 2825 /ab{1,}?bc/i 2826 ABBBBC 2827 2828 /ab{1,3}?bc/i 2829 ABBBBC 2830 2831 /ab{3,4}?bc/i 2832 ABBBBC 2833 2834 /ab{4,5}?bc/i 2835 *** Failers 2836 ABQ 2837 ABBBBC 2838 2839 /ab??bc/i 2840 ABBC 2841 ABC 2842 2843 /ab{0,1}?bc/i 2844 ABC 2845 2846 /ab??bc/i 2847 2848 /ab??c/i 2849 ABC 2850 2851 /ab{0,1}?c/i 2852 ABC 2853 2854 /^abc$/i 2855 ABC 2856 *** Failers 2857 ABBBBC 2858 ABCC 2859 2860 /^abc/i 2861 ABCC 2862 2863 /^abc$/i 2864 2865 /abc$/i 2866 AABC 2867 2868 /^/i 2869 ABC 2870 2871 /$/i 2872 ABC 2873 2874 /a.c/i 2875 ABC 2876 AXC 2877 2878 /a.*?c/i 2879 AXYZC 2880 2881 /a.*c/i 2882 *** Failers 2883 AABC 2884 AXYZD 2885 2886 /a[bc]d/i 2887 ABD 2888 2889 /a[b-d]e/i 2890 ACE 2891 *** Failers 2892 ABC 2893 ABD 2894 2895 /a[b-d]/i 2896 AAC 2897 2898 /a[-b]/i 2899 A- 2900 2901 /a[b-]/i 2902 A- 2903 2904 /a]/i 2905 A] 2906 2907 /a[]]b/i 2908 A]B 2909 2910 /a[^bc]d/i 2911 AED 2912 2913 /a[^-b]c/i 2914 ADC 2915 *** Failers 2916 ABD 2917 A-C 2918 2919 /a[^]b]c/i 2920 ADC 2921 2922 /ab|cd/i 2923 ABC 2924 ABCD 2925 2926 /()ef/i 2927 DEF 2928 2929 /$b/i 2930 *** Failers 2931 A]C 2932 B 2933 2934 /a\(b/i 2935 A(B 2936 2937 /a\(*b/i 2938 AB 2939 A((B 2940 2941 /a\\b/i 2942 A\B 2943 2944 /((a))/i 2945 ABC 2946 2947 /(a)b(c)/i 2948 ABC 2949 2950 /a+b+c/i 2951 AABBABC 2952 2953 /a{1,}b{1,}c/i 2954 AABBABC 2955 2956 /a.+?c/i 2957 ABCABC 2958 2959 /a.*?c/i 2960 ABCABC 2961 2962 /a.{0,5}?c/i 2963 ABCABC 2964 2965 /(a+|b)*/i 2966 AB 2967 2968 /(a+|b){0,}/i 2969 AB 2970 2971 /(a+|b)+/i 2972 AB 2973 2974 /(a+|b){1,}/i 2975 AB 2976 2977 /(a+|b)?/i 2978 AB 2979 2980 /(a+|b){0,1}/i 2981 AB 2982 2983 /(a+|b){0,1}?/i 2984 AB 2985 2986 /[^ab]*/i 2987 CDE 2988 2989 /abc/i 2990 2991 /a*/i 2992 2993 2994 /([abc])*d/i 2995 ABBBCD 2996 2997 /([abc])*bcd/i 2998 ABCD 2999 3000 /a|b|c|d|e/i 3001 E 3002 3003 /(a|b|c|d|e)f/i 3004 EF 3005 3006 /abcd*efg/i 3007 ABCDEFG 3008 3009 /ab*/i 3010 XABYABBBZ 3011 XAYABBBZ 3012 3013 /(ab|cd)e/i 3014 ABCDE 3015 3016 /[abhgefdc]ij/i 3017 HIJ 3018 3019 /^(ab|cd)e/i 3020 ABCDE 3021 3022 /(abc|)ef/i 3023 ABCDEF 3024 3025 /(a|b)c*d/i 3026 ABCD 3027 3028 /(ab|ab*)bc/i 3029 ABC 3030 3031 /a([bc]*)c*/i 3032 ABC 3033 3034 /a([bc]*)(c*d)/i 3035 ABCD 3036 3037 /a([bc]+)(c*d)/i 3038 ABCD 3039 3040 /a([bc]*)(c+d)/i 3041 ABCD 3042 3043 /a[bcd]*dcdcde/i 3044 ADCDCDE 3045 3046 /a[bcd]+dcdcde/i 3047 3048 /(ab|a)b*c/i 3049 ABC 3050 3051 /((a)(b)c)(d)/i 3052 ABCD 3053 3054 /[a-zA-Z_][a-zA-Z0-9_]*/i 3055 ALPHA 3056 3057 /^a(bc+|b[eh])g|.h$/i 3058 ABH 3059 3060 /(bc+d$|ef*g.|h?i(j|k))/i 3061 EFFGZ 3062 IJ 3063 REFFGZ 3064 *** Failers 3065 ADCDCDE 3066 EFFG 3067 BCDD 3068 3069 /((((((((((a))))))))))/i 3070 A 3071 3072 /((((((((((a))))))))))\10/i 3073 AA 3074 3075 /(((((((((a)))))))))/i 3076 A 3077 3078 /(?:(?:(?:(?:(?:(?:(?:(?:(?:(a))))))))))/i 3079 A 3080 3081 /(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/i 3082 C 3083 3084 /multiple words of text/i 3085 *** Failers 3086 AA 3087 UH-UH 3088 3089 /multiple words/i 3090 MULTIPLE WORDS, YEAH 3091 3092 /(.*)c(.*)/i 3093 ABCDE 3094 3095 /\((.*), (.*)\)/i 3096 (A, B) 3097 3098 /[k]/i 3099 3100 /abcd/i 3101 ABCD 3102 3103 /a(bc)d/i 3104 ABCD 3105 3106 /a[-]?c/i 3107 AC 3108 3109 /(abc)\1/i 3110 ABCABC 3111 3112 /([a-c]*)\1/i 3113 ABCABC 3114 3115 /a(?!b)./ 3116 abad 3117 3118 /a(?=d)./ 3119 abad 3120 3121 /a(?=c|d)./ 3122 abad 3123 3124 /a(?:b|c|d)(.)/ 3125 ace 3126 3127 /a(?:b|c|d)*(.)/ 3128 ace 3129 3130 /a(?:b|c|d)+?(.)/ 3131 ace 3132 acdbcdbe 3133 3134 /a(?:b|c|d)+(.)/ 3135 acdbcdbe 3136 3137 /a(?:b|c|d){2}(.)/ 3138 acdbcdbe 3139 3140 /a(?:b|c|d){4,5}(.)/ 3141 acdbcdbe 3142 3143 /a(?:b|c|d){4,5}?(.)/ 3144 acdbcdbe 3145 3146 /((foo)|(bar))*/ 3147 foobar 3148 3149 /a(?:b|c|d){6,7}(.)/ 3150 acdbcdbe 3151 3152 /a(?:b|c|d){6,7}?(.)/ 3153 acdbcdbe 3154 3155 /a(?:b|c|d){5,6}(.)/ 3156 acdbcdbe 3157 3158 /a(?:b|c|d){5,6}?(.)/ 3159 acdbcdbe 3160 3161 /a(?:b|c|d){5,7}(.)/ 3162 acdbcdbe 3163 3164 /a(?:b|c|d){5,7}?(.)/ 3165 acdbcdbe 3166 3167 /a(?:b|(c|e){1,2}?|d)+?(.)/ 3168 ace 3169 3170 /^(.+)?B/ 3171 AB 3172 3173 /^([^a-z])|(\^)$/ 3174 . 3175 3176 /^[<>]&/ 3177 <&OUT 3178 3179 /^(a\1?){4}$/ 3180 aaaaaaaaaa 3181 *** Failers 3182 AB 3183 aaaaaaaaa 3184 aaaaaaaaaaa 3185 3186 /^(a(?(1)\1)){4}$/ 3187 aaaaaaaaaa 3188 *** Failers 3189 aaaaaaaaa 3190 aaaaaaaaaaa 3191 3192 /(?:(f)(o)(o)|(b)(a)(r))*/ 3193 foobar 3194 3195 /(?<=a)b/ 3196 ab 3197 *** Failers 3198 cb 3199 b 3200 3201 /(?<!c)b/ 3202 ab 3203 b 3204 b 3205 3206 /(?:..)*a/ 3207 aba 3208 3209 /(?:..)*?a/ 3210 aba 3211 3212 /^(?:b|a(?=(.)))*\1/ 3213 abc 3214 3215 /^(){3,5}/ 3216 abc 3217 3218 /^(a+)*ax/ 3219 aax 3220 3221 /^((a|b)+)*ax/ 3222 aax 3223 3224 /^((a|bc)+)*ax/ 3225 aax 3226 3227 /(a|x)*ab/ 3228 cab 3229 3230 /(a)*ab/ 3231 cab 3232 3233 /(?:(?i)a)b/ 3234 ab 3235 3236 /((?i)a)b/ 3237 ab 3238 3239 /(?:(?i)a)b/ 3240 Ab 3241 3242 /((?i)a)b/ 3243 Ab 3244 3245 /(?:(?i)a)b/ 3246 *** Failers 3247 cb 3248 aB 3249 3250 /((?i)a)b/ 3251 3252 /(?i:a)b/ 3253 ab 3254 3255 /((?i:a))b/ 3256 ab 3257 3258 /(?i:a)b/ 3259 Ab 3260 3261 /((?i:a))b/ 3262 Ab 3263 3264 /(?i:a)b/ 3265 *** Failers 3266 aB 3267 aB 3268 3269 /((?i:a))b/ 3270 3271 /(?:(?-i)a)b/i 3272 ab 3273 3274 /((?-i)a)b/i 3275 ab 3276 3277 /(?:(?-i)a)b/i 3278 aB 3279 3280 /((?-i)a)b/i 3281 aB 3282 3283 /(?:(?-i)a)b/i 3284 *** Failers 3285 aB 3286 Ab 3287 3288 /((?-i)a)b/i 3289 3290 /(?:(?-i)a)b/i 3291 aB 3292 3293 /((?-i)a)b/i 3294 aB 3295 3296 /(?:(?-i)a)b/i 3297 *** Failers 3298 Ab 3299 AB 3300 3301 /((?-i)a)b/i 3302 3303 /(?-i:a)b/i 3304 ab 3305 3306 /((?-i:a))b/i 3307 ab 3308 3309 /(?-i:a)b/i 3310 aB 3311 3312 /((?-i:a))b/i 3313 aB 3314 3315 /(?-i:a)b/i 3316 *** Failers 3317 AB 3318 Ab 3319 3320 /((?-i:a))b/i 3321 3322 /(?-i:a)b/i 3323 aB 3324 3325 /((?-i:a))b/i 3326 aB 3327 3328 /(?-i:a)b/i 3329 *** Failers 3330 Ab 3331 AB 3332 3333 /((?-i:a))b/i 3334 3335 /((?-i:a.))b/i 3336 *** Failers 3337 AB 3338 a\nB 3339 3340 /((?s-i:a.))b/i 3341 a\nB 3342 3343 /(?:c|d)(?:)(?:a(?:)(?:b)(?:b(?:))(?:b(?:)(?:b)))/ 3344 cabbbb 3345 3346 /(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/ 3347 caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 3348 3349 /(ab)\d\1/i 3350 Ab4ab 3351 ab4Ab 3352 3353 /foo\w*\d{4}baz/ 3354 foobar1234baz 3355 3356 /x(~~)*(?:(?:F)?)?/ 3357 x~~ 3358 3359 /^a(?#xxx){3}c/ 3360 aaac 3361 3362 /^a (?#xxx) (?#yyy) {3}c/x 3363 aaac 3364 3365 /(?<![cd])b/ 3366 *** Failers 3367 B\nB 3368 dbcb 3369 3370 /(?<![cd])[ab]/ 3371 dbaacb 3372 3373 /(?<!(c|d))b/ 3374 3375 /(?<!(c|d))[ab]/ 3376 dbaacb 3377 3378 /(?<!cd)[ab]/ 3379 cdaccb 3380 3381 /^(?:a?b?)*$/ 3382 \ 3383 a 3384 ab 3385 aaa 3386 *** Failers 3387 dbcb 3388 a-- 3389 aa-- 3390 3391 /((?s)^a(.))((?m)^b$)/ 3392 a\nb\nc\n 3393 3394 /((?m)^b$)/ 3395 a\nb\nc\n 3396 3397 /(?m)^b/ 3398 a\nb\n 3399 3400 /(?m)^(b)/ 3401 a\nb\n 3402 3403 /((?m)^b)/ 3404 a\nb\n 3405 3406 /\n((?m)^b)/ 3407 a\nb\n 3408 3409 /((?s).)c(?!.)/ 3410 a\nb\nc\n 3411 a\nb\nc\n 3412 3413 /((?s)b.)c(?!.)/ 3414 a\nb\nc\n 3415 a\nb\nc\n 3416 3417 /^b/ 3418 3419 /()^b/ 3420 *** Failers 3421 a\nb\nc\n 3422 a\nb\nc\n 3423 3424 /((?m)^b)/ 3425 a\nb\nc\n 3426 3427 /(x)?(?(1)a|b)/ 3428 *** Failers 3429 a 3430 a 3431 3432 /(x)?(?(1)b|a)/ 3433 a 3434 3435 /()?(?(1)b|a)/ 3436 a 3437 3438 /()(?(1)b|a)/ 3439 3440 /()?(?(1)a|b)/ 3441 a 3442 3443 /^(\()?blah(?(1)(\)))$/ 3444 (blah) 3445 blah 3446 *** Failers 3447 a 3448 blah) 3449 (blah 3450 3451 /^(\(+)?blah(?(1)(\)))$/ 3452 (blah) 3453 blah 3454 *** Failers 3455 blah) 3456 (blah 3457 3458 /(?(?!a)a|b)/ 3459 3460 /(?(?!a)b|a)/ 3461 a 3462 3463 /(?(?=a)b|a)/ 3464 *** Failers 3465 a 3466 a 3467 3468 /(?(?=a)a|b)/ 3469 a 3470 3471 /(?=(a+?))(\1ab)/ 3472 aaab 3473 3474 /^(?=(a+?))\1ab/ 3475 3476 /(\w+:)+/ 3477 one: 3478 3479 /$(?<=^(a))/ 3480 a 3481 3482 /(?=(a+?))(\1ab)/ 3483 aaab 3484 3485 /^(?=(a+?))\1ab/ 3486 *** Failers 3487 aaab 3488 aaab 3489 3490 /([\w:]+::)?(\w+)$/ 3491 abcd 3492 xy:z:::abcd 3493 3494 /^[^bcd]*(c+)/ 3495 aexycd 3496 3497 /(a*)b+/ 3498 caab 3499 3500 /([\w:]+::)?(\w+)$/ 3501 abcd 3502 xy:z:::abcd 3503 *** Failers 3504 abcd: 3505 abcd: 3506 3507 /^[^bcd]*(c+)/ 3508 aexycd 3509 3510 /(>a+)ab/ 3511 3512 /(?>a+)b/ 3513 aaab 3514 3515 /([[:]+)/ 3516 a:[b]: 3517 3518 /([[=]+)/ 3519 a=[b]= 3520 3521 /([[.]+)/ 3522 a.[b]. 3523 3524 /((?>a+)b)/ 3525 aaab 3526 3527 /(?>(a+))b/ 3528 aaab 3529 3530 /((?>[^()]+)|\([^()]*\))+/ 3531 ((abc(ade)ufh()()x 3532 3533 /a\Z/ 3534 *** Failers 3535 aaab 3536 a\nb\n 3537 3538 /b\Z/ 3539 a\nb\n 3540 3541 /b\z/ 3542 3543 /b\Z/ 3544 a\nb 3545 3546 /b\z/ 3547 a\nb 3548 *** Failers 3549 3550 /^(?>(?(1)\.|())[^\W_](?>[a-z0-9-]*[^\W_])?)+$/ 3551 a 3552 abc 3553 a-b 3554 0-9 3555 a.b 3556 5.6.7 3557 the.quick.brown.fox 3558 a100.b200.300c 3559 12-ab.1245 3560 *** Failers 3561 \ 3562 .a 3563 -a 3564 a- 3565 a. 3566 a_b 3567 a.- 3568 a.. 3569 ab..bc 3570 the.quick.brown.fox- 3571 the.quick.brown.fox. 3572 the.quick.brown.fox_ 3573 the.quick.brown.fox+ 3574 3575 /(?>.*)(?<=(abcd|wxyz))/ 3576 alphabetabcd 3577 endingwxyz 3578 *** Failers 3579 a rather long string that doesn't end with one of them 3580 3581 /word (?>(?:(?!otherword)[a-zA-Z0-9]+ ){0,30})otherword/ 3582 word cat dog elephant mussel cow horse canary baboon snake shark otherword 3583 word cat dog elephant mussel cow horse canary baboon snake shark 3584 3585 /word (?>[a-zA-Z0-9]+ ){0,30}otherword/ 3586 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 3587 3588 /(?<=\d{3}(?!999))foo/ 3589 999foo 3590 123999foo 3591 *** Failers 3592 123abcfoo 3593 3594 /(?<=(?!...999)\d{3})foo/ 3595 999foo 3596 123999foo 3597 *** Failers 3598 123abcfoo 3599 3600 /(?<=\d{3}(?!999)...)foo/ 3601 123abcfoo 3602 123456foo 3603 *** Failers 3604 123999foo 3605 3606 /(?<=\d{3}...)(?<!999)foo/ 3607 123abcfoo 3608 123456foo 3609 *** Failers 3610 123999foo 3611 3612 /<a[\s]+href[\s]*=[\s]* # find <a href= 3613 ([\"\'])? # find single or double quote 3614 (?(1) (.*?)\1 | ([^\s]+)) # if quote found, match up to next matching 3615 # quote, otherwise match up to next space 3616 /isx 3617 <a href=abcd xyz 3618 <a href=\"abcd xyz pqr\" cats 3619 <a href=\'abcd xyz pqr\' cats 3620 3621 /<a\s+href\s*=\s* # find <a href= 3622 (["'])? # find single or double quote 3623 (?(1) (.*?)\1 | (\S+)) # if quote found, match up to next matching 3624 # quote, otherwise match up to next space 3625 /isx 3626 <a href=abcd xyz 3627 <a href=\"abcd xyz pqr\" cats 3628 <a href = \'abcd xyz pqr\' cats 3629 3630 /<a\s+href(?>\s*)=(?>\s*) # find <a href= 3631 (["'])? # find single or double quote 3632 (?(1) (.*?)\1 | (\S+)) # if quote found, match up to next matching 3633 # quote, otherwise match up to next space 3634 /isx 3635 <a href=abcd xyz 3636 <a href=\"abcd xyz pqr\" cats 3637 <a href = \'abcd xyz pqr\' cats 3638 3639 /((Z)+|A)*/ 3640 ZABCDEFG 3641 3642 /(Z()|A)*/ 3643 ZABCDEFG 3644 3645 /(Z(())|A)*/ 3646 ZABCDEFG 3647 3648 /((?>Z)+|A)*/ 3649 ZABCDEFG 3650 3651 /((?>)+|A)*/ 3652 ZABCDEFG 3653 3654 /a*/g 3655 abbab 3656 3657 /^[a-\d]/ 3658 abcde 3659 -things 3660 0digit 3661 *** Failers 3662 bcdef 3663 3664 /^[\d-a]/ 3665 abcde 3666 -things 3667 0digit 3668 *** Failers 3669 bcdef 3670 3671 /[[:space:]]+/ 3672 > \x09\x0a\x0c\x0d\x0b< 3673 3674 /[[:blank:]]+/ 3675 > \x09\x0a\x0c\x0d\x0b< 3676 3677 /[\s]+/ 3678 > \x09\x0a\x0c\x0d\x0b< 3679 3680 /\s+/ 3681 > \x09\x0a\x0c\x0d\x0b< 3682 3683 /ab/x 3685 ab 3686 3687 /(?!\A)x/m 3688 a\nxb\n 3689 3690 /(?!^)x/m 3691 a\nxb\n 3692 3693 /abc\Qabc\Eabc/ 3694 abcabcabc 3695 3696 /abc\Q(*+|\Eabc/ 3697 abc(*+|abc 3698 3699 / abc\Q abc\Eabc/x 3700 abc abcabc 3701 *** Failers 3702 abcabcabc 3703 3704 /abc#comment 3705 \Q#not comment 3706 literal\E/x 3707 abc#not comment\n literal 3708 3709 /abc#comment 3710 \Q#not comment 3711 literal/x 3712 abc#not comment\n literal 3713 3714 /abc#comment 3715 \Q#not comment 3716 literal\E #more comment 3717 /x 3718 abc#not comment\n literal 3719 3720 /abc#comment 3721 \Q#not comment 3722 literal\E #more comment/x 3723 abc#not comment\n literal 3724 3725 /\Qabc\$xyz\E/ 3726 abc\\\$xyz 3727 3728 /\Qabc\E\$\Qxyz\E/ 3729 abc\$xyz 3730 3731 /\Gabc/ 3732 abc 3733 *** Failers 3734 xyzabc 3735 3736 /\Gabc./g 3737 abc1abc2xyzabc3 3738 3739 /abc./g 3740 abc1abc2xyzabc3 3741 3742 /a(?x: b c )d/ 3743 XabcdY 3744 *** Failers 3745 Xa b c d Y 3746 3747 /((?x)x y z | a b c)/ 3748 XabcY 3749 AxyzB 3750 3751 /(?i)AB(?-i)C/ 3752 XabCY 3753 *** Failers 3754 XabcY 3755 3756 /((?i)AB(?-i)C|D)E/ 3757 abCE 3758 DE 3759 *** Failers 3760 abcE 3761 abCe 3762 dE 3763 De 3764 3765 /(.*)\d+\1/ 3766 abc123abc 3767 abc123bc 3768 3769 /(.*)\d+\1/s 3770 abc123abc 3771 abc123bc 3772 3773 /((.*))\d+\1/ 3774 abc123abc 3775 abc123bc 3776 3777 /-- This tests for an IPv6 address in the form where it can have up to --/ 3778 /-- eight components, one and only one of which is empty. This must be --/ 3779 /-- an internal component. --/ 3780 3781 /^(?!:) # colon disallowed at start 3782 (?: # start of item 3783 (?: [0-9a-f]{1,4} | # 1-4 hex digits or 3784 (?(1)0 | () ) ) # if null previously matched, fail; else null 3785 : # followed by colon 3786 ){1,7} # end item; 1-7 of them required 3787 [0-9a-f]{1,4} $ # final hex number at end of string 3788 (?(1)|.) # check that there was an empty component 3789 /xi 3790 a123::a123 3791 a123:b342::abcd 3792 a123:b342::324e:abcd 3793 a123:ddde:b342::324e:abcd 3794 a123:ddde:b342::324e:dcba:abcd 3795 a123:ddde:9999:b342::324e:dcba:abcd 3796 *** Failers 3797 1:2:3:4:5:6:7:8 3798 a123:bce:ddde:9999:b342::324e:dcba:abcd 3799 a123::9999:b342::324e:dcba:abcd 3800 abcde:2:3:4:5:6:7:8 3801 ::1 3802 abcd:fee0:123:: 3803 :1 3804 1: 3805 3806 /[z\Qa-d]\E]/ 3807 z 3808 a 3809 - 3810 d 3811 ] 3812 *** Failers 3813 b 3814 3815 /[\z\C]/ 3816 z 3817 C 3818 3819 /\M/ 3820 M 3821 3822 /(a+)*b/ 3823 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 3824 3825 /(?i)reg(?:ul(?:[a]|ae)r|ex)/ 3826 REGular 3827 regulaer 3828 Regex 3829 regulr 3830 3831 /[--]+/ 3832 3833 3834 3835 3836 3837 /(?<=Z)X./ 3838 \x84XAZXB 3839 3840 /ab cd (?x) de fg/ 3841 ab cd defg 3842 3843 /ab cd(?x) de fg/ 3844 ab cddefg 3845 ** Failers 3846 abcddefg 3847 3848 /(?<![^f]oo)(bar)/ 3849 foobarX 3850 ** Failers 3851 boobarX 3852 3853 /(?<![^f])X/ 3854 offX 3855 ** Failers 3856 onyX 3857 3858 /(?<=[^f])X/ 3859 onyX 3860 ** Failers 3861 offX 3862 3863 /^/mg 3864 a\nb\nc\n 3865 \ 3866 3867 /(?<=C\n)^/mg 3868 A\nC\nC\n 3869 3870 /(?:(?(1)a|b)(X))+/ 3871 bXaX 3872 3873 /(?:(?(1)\1a|b)(X|Y))+/ 3874 bXXaYYaY 3875 bXYaXXaX 3876 3877 /()()()()()()()()()(?:(?(10)\10a|b)(X|Y))+/ 3878 bXXaYYaY 3879 3880 /[[,abc,]+]/ 3881 abc] 3882 a,b] 3883 [a,b,c] 3884 3885 /(?-x: )/x 3886 A\x20B 3887 3888 "(?x)(?-x: \s*#\s*)" 3889 A # B 3890 ** Failers 3891 # 3892 3893 "(?x-is)(?:(?-ixs) \s*#\s*) include" 3894 A #include 3895 ** Failers 3896 A#include 3897 A #Include 3898 3899 /a*b*\w/ 3900 aaabbbb 3901 aaaa 3902 a 3903 3904 /a*b?\w/ 3905 aaabbbb 3906 aaaa 3907 a 3908 3909 /a*b{0,4}\w/ 3910 aaabbbb 3911 aaaa 3912 a 3913 3914 /a*b{0,}\w/ 3915 aaabbbb 3916 aaaa 3917 a 3918 3919 /a*\d*\w/ 3920 0a 3921 a 3922 3923 /a*b *\w/x 3924 a 3925 3926 /a*b#comment 3927 *\w/x 3928 a 3929 3930 /a* b *\w/x 3931 a 3932 3933 /^\w+=.*(\\\n.*)*/ 3934 abc=xyz\\\npqr 3935 3936 /(?=(\w+))\1:/ 3937 abcd: 3938 3939 /^(?=(\w+))\1:/ 3940 abcd: 3941 3942 /^\Eabc/ 3943 abc 3944 3945 /^[\Eabc]/ 3946 a 3947 ** Failers 3948 E 3949 3950 /^[a-\Ec]/ 3951 b 3952 ** Failers 3953 - 3954 E 3955 3956 /^[a\E\E-\Ec]/ 3957 b 3958 ** Failers 3959 - 3960 E 3961 3962 /^[\E\Qa\E-\Qz\E]+/ 3963 b 3964 ** Failers 3965 - 3966 3967 /^[a\Q]bc\E]/ 3968 a 3969 ] 3970 c 3971 3972 /^[a-\Q\E]/ 3973 a 3974 - 3975 3976 /^(a()*)*/ 3977 aaaa 3978 3979 /^(?:a(?:(?:))*)*/ 3980 aaaa 3981 3982 /^(a()+)+/ 3983 aaaa 3984 3985 /^(?:a(?:(?:))+)+/ 3986 aaaa 3987 3988 /(a){0,3}(?(1)b|(c|))*D/ 3989 abbD 3990 ccccD 3991 D 3992 3993 /(a|)*\d/ 3994 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 3995 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 3996 3997 /(?>a|)*\d/ 3998 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 3999 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 4000 4001 /(?:a|)*\d/ 4002 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 4003 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 4004 4005 /\Z/g 4006 abc\n 4007 4008 /^(?s)(?>.*)(?<!\n)/ 4009 abc 4010 abc\n 4011 4012 /^(?![^\n]*\n\z)/ 4013 abc 4014 abc\n 4015 4016 /\z(?<!\n)/ 4017 abc 4018 abc\n 4019 4020 /(.*(.)?)*/ 4021 abcd 4022 4023 /( (A | (?(1)0|) )* )/x 4024 abcd 4025 4026 /( ( (?(1)0|) )* )/x 4027 abcd 4028 4029 /( (?(1)0|)* )/x 4030 abcd 4031 4032 /[[:abcd:xyz]]/ 4033 a] 4034 :] 4035 4036 /[abc[:x\]pqr]/ 4037 a 4038 [ 4039 : 4040 ] 4041 p 4042 4043 /.*[op][xyz]/ 4044 fooabcfoo 4045 4046 /(?(?=.*b)b|^)/ 4047 adc 4048 abc 4049 4050 /(?(?=^.*b)b|^)/ 4051 adc 4052 abc 4053 4054 /(?(?=.*b)b|^)*/ 4055 adc 4056 abc 4057 4058 /(?(?=.*b)b|^)+/ 4059 adc 4060 abc 4061 4062 /(?(?=b).*b|^d)/ 4063 abc 4064 4065 /(?(?=.*b).*b|^d)/ 4066 abc 4067 4068 /^%((?(?=[a])[^%])|b)*%$/ 4069 %ab% 4070 4071 /(?i)a(?-i)b|c/ 4072 XabX 4073 XAbX 4074 CcC 4075 ** Failers 4076 XABX 4077 4078 /[\x00-\xff\s]+/ 4079 \x0a\x0b\x0c\x0d 4080 4081 /^\c/ 4082 ? 4083 4084 /-- End of testinput1 --/ 4085
