rubbos/app/httpd-2.0.64/srclib/pcre/testdata/testinput1

   1 /the quick brown fox/
   2     the quick brown fox
   3     The quick brown FOX
   4     What do you know about the quick brown fox?
   5     What do you know about THE QUICK BROWN FOX?
   6
   7 /The quick brown fox/i
   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 /abcd\t\n\r\f\a\e\071\x3b\$\\\?caxyz/
  14     abcd\t\n\r\f\a\e9;\$\\?caxyz
  15
  16 /a*abc?xyz+pqr{3}ab{2,}xy{4,5}pq{0,6}AB{0,}zz/
  17     abxyzpqrrrabbxyyyypqAzz
  18     abxyzpqrrrabbxyyyypqAzz
  19     aabxyzpqrrrabbxyyyypqAzz
  20     aaabxyzpqrrrabbxyyyypqAzz
  21     aaaabxyzpqrrrabbxyyyypqAzz
  22     abcxyzpqrrrabbxyyyypqAzz
  23     aabcxyzpqrrrabbxyyyypqAzz
  24     aaabcxyzpqrrrabbxyyyypAzz
  25     aaabcxyzpqrrrabbxyyyypqAzz
  26     aaabcxyzpqrrrabbxyyyypqqAzz
  27     aaabcxyzpqrrrabbxyyyypqqqAzz
  28     aaabcxyzpqrrrabbxyyyypqqqqAzz
  29     aaabcxyzpqrrrabbxyyyypqqqqqAzz
  30     aaabcxyzpqrrrabbxyyyypqqqqqqAzz
  31     aaaabcxyzpqrrrabbxyyyypqAzz
  32     abxyzzpqrrrabbxyyyypqAzz
  33     aabxyzzzpqrrrabbxyyyypqAzz
  34     aaabxyzzzzpqrrrabbxyyyypqAzz
  35     aaaabxyzzzzpqrrrabbxyyyypqAzz
  36     abcxyzzpqrrrabbxyyyypqAzz
  37     aabcxyzzzpqrrrabbxyyyypqAzz
  38     aaabcxyzzzzpqrrrabbxyyyypqAzz
  39     aaaabcxyzzzzpqrrrabbxyyyypqAzz
  40     aaaabcxyzzzzpqrrrabbbxyyyypqAzz
  41     aaaabcxyzzzzpqrrrabbbxyyyyypqAzz
  42     aaabcxyzpqrrrabbxyyyypABzz
  43     aaabcxyzpqrrrabbxyyyypABBzz
  44     >>>aaabxyzpqrrrabbxyyyypqAzz
  45     >aaaabxyzpqrrrabbxyyyypqAzz
  46     >>>>abcxyzpqrrrabbxyyyypqAzz
  47     *** Failers
  48     abxyzpqrrabbxyyyypqAzz
  49     abxyzpqrrrrabbxyyyypqAzz
  50     abxyzpqrrrabxyyyypqAzz
  51     aaaabcxyzzzzpqrrrabbbxyyyyyypqAzz
  52     aaaabcxyzzzzpqrrrabbbxyyypqAzz
  53     aaabcxyzpqrrrabbxyyyypqqqqqqqAzz
  54
  55 /^(abc){1,2}zz/
  56     abczz
  57     abcabczz
  58     *** Failers
  59     zz
  60     abcabcabczz
  61     >>abczz
  62
  63 /^(b+?|a){1,2}?c/
  64     bc
  65     bbc
  66     bbbc
  67     bac
  68     bbac
  69     aac
  70     abbbbbbbbbbbc
  71     bbbbbbbbbbbac
  72     *** Failers
  73     aaac
  74     abbbbbbbbbbbac
  75
  76 /^(b+|a){1,2}c/
  77     bc
  78     bbc
  79     bbbc
  80     bac
  81     bbac
  82     aac
  83     abbbbbbbbbbbc
  84     bbbbbbbbbbbac
  85     *** Failers
  86     aaac
  87     abbbbbbbbbbbac
  88
  89 /^(b+|a){1,2}?bc/
  90     bbc
  91
  92 /^(b*|ba){1,2}?bc/
  93     babc
  94     bbabc
  95     bababc
  96     *** Failers
  97     bababbc
  98     babababc
  99
 100 /^(ba|b*){1,2}?bc/
 101     babc
 102     bbabc
 103     bababc
 104     *** Failers
 105     bababbc
 106     babababc
 107
 108 /^\ca\cA\c[\c{\c:/
 109     \x01\x01\e;z
 110
 111 /^[ab\]cde]/
 112     athing
 113     bthing
 114     ]thing
 115     cthing
 116     dthing
 117     ething
 118     *** Failers
 119     fthing
 120     [thing
 121     \\thing
 122
 123 /^[]cde]/
 124     ]thing
 125     cthing
 126     dthing
 127     ething
 128     *** Failers
 129     athing
 130     fthing
 131
 132 /^[^ab\]cde]/
 133     fthing
 134     [thing
 135     \\thing
 136     *** Failers
 137     athing
 138     bthing
 139     ]thing
 140     cthing
 141     dthing
 142     ething
 143
 144 /^[^]cde]/
 145     athing
 146     fthing
 147     *** Failers
 148     ]thing
 149     cthing
 150     dthing
 151     ething
 152
 153 /^\\81/
 154     \81
 155
 156 /^ÿ/
 157     ÿ
 158
 159 /^[0-9]+$/
 160     0
 161     1
 162     2
 163     3
 164     4
 165     5
 166     6
 167     7
 168     8
 169     9
 170     10
 171     100
 172     *** Failers
 173     abc
 174
 175 /^.*nter/
 176     enter
 177     inter
 178     uponter
 179
 180 /^xxx[0-9]+$/
 181     xxx0
 182     xxx1234
 183     *** Failers
 184     xxx
 185
 186 /^.+[0-9][0-9][0-9]$/
 187     x123
 188     xx123
 189     123456
 190     *** Failers
 191     123
 192     x1234
 193
 194 /^.+?[0-9][0-9][0-9]$/
 195     x123
 196     xx123
 197     123456
 198     *** Failers
 199     123
 200     x1234
 201
 202 /^([^!]+)!(.+)=apquxz\.ixr\.zzz\.ac\.uk$/
 203     abc!pqr=apquxz.ixr.zzz.ac.uk
 204     *** Failers
 205     !pqr=apquxz.ixr.zzz.ac.uk
 206     abc!=apquxz.ixr.zzz.ac.uk
 207     abc!pqr=apquxz:ixr.zzz.ac.uk
 208     abc!pqr=apquxz.ixr.zzz.ac.ukk
 209
 210 /:/
 211     Well, we need a colon: somewhere
 212     *** Fail if we don't
 213
 214 /([\da-f:]+)$/i
 215     0abc
 216     abc
 217     fed
 218     E
 219     ::
 220     5f03:12C0::932e
 221     fed def
 222     Any old stuff
 223     *** Failers
 224     0zzz
 225     gzzz
 226     fed\x20
 227     Any old rubbish
 228
 229 /^.*\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/
 230     .1.2.3
 231     A.12.123.0
 232     *** Failers
 233     .1.2.3333
 234     1.2.3
 235     1234.2.3
 236
 237 /^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/
 238     1 IN SOA non-sp1 non-sp2(
 239     1    IN    SOA    non-sp1    non-sp2   (
 240     *** Failers
 241     1IN SOA non-sp1 non-sp2(
 242
 243 /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/
 244     a.
 245     Z.
 246     2.
 247     ab-c.pq-r.
 248     sxk.zzz.ac.uk.
 249     x-.y-.
 250     *** Failers
 251     -abc.peq.
 252
 253 /^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/
 254     *.a
 255     *.b0-a
 256     *.c3-b.c
 257     *.c-a.b-c
 258     *** Failers
 259     *.0
 260     *.a-
 261     *.a-b.c-
 262     *.c-a.0-c
 263
 264 /^(?=ab(de))(abd)(e)/
 265     abde
 266
 267 /^(?!(ab)de|x)(abd)(f)/
 268     abdf
 269
 270 /^(?=(ab(cd)))(ab)/
 271     abcd
 272
 273 /^[\da-f](\.[\da-f])*$/i
 274     a.b.c.d
 275     A.B.C.D
 276     a.b.c.1.2.3.C
 277
 278 /^\".*\"\s*(;.*)?$/
 279     \"1234\"
 280     \"abcd\" ;
 281     \"\" ; rhubarb
 282     *** Failers
 283     \"1234\" : things
 284
 285 /^$/
 286     \
 287     *** Failers
 288
 289 /   ^    a   (?# begins with a)  b\sc (?# then b c) $ (?# then end)/x
 290     ab c
 291     *** Failers
 292     abc
 293     ab cde
 294
 295 /(?x)   ^    a   (?# begins with a)  b\sc (?# then b c) $ (?# then end)/
 296     ab c
 297     *** Failers
 298     abc
 299     ab cde
 300
 301 /^   a\ b[c ]d       $/x
 302     a bcd
 303     a b d
 304     *** Failers
 305     abcd
 306     ab d
 307
 308 /^(a(b(c)))(d(e(f)))(h(i(j)))(k(l(m)))$/
 309     abcdefhijklm
 310
 311 /^(?:a(b(c)))(?:d(e(f)))(?:h(i(j)))(?:k(l(m)))$/
 312     abcdefhijklm
 313
 314 /^[\w][\W][\s][\S][\d][\D][\b][\n][\c]][\022]/
 315     a+ Z0+\x08\n\x1d\x12
 316
 317 /^[.^$|()*+?{,}]+/
 318     .^\$(*+)|{?,?}
 319
 320 /^a*\w/
 321     z
 322     az
 323     aaaz
 324     a
 325     aa
 326     aaaa
 327     a+
 328     aa+
 329
 330 /^a*?\w/
 331     z
 332     az
 333     aaaz
 334     a
 335     aa
 336     aaaa
 337     a+
 338     aa+
 339
 340 /^a+\w/
 341     az
 342     aaaz
 343     aa
 344     aaaa
 345     aa+
 346
 347 /^a+?\w/
 348     az
 349     aaaz
 350     aa
 351     aaaa
 352     aa+
 353
 354 /^\d{8}\w{2,}/
 355     1234567890
 356     12345678ab
 357     12345678__
 358     *** Failers
 359     1234567
 360
 361 /^[aeiou\d]{4,5}$/
 362     uoie
 363     1234
 364     12345
 365     aaaaa
 366     *** Failers
 367     123456
 368
 369 /^[aeiou\d]{4,5}?/
 370     uoie
 371     1234
 372     12345
 373     aaaaa
 374     123456
 375
 376 /\A(abc|def)=(\1){2,3}\Z/
 377     abc=abcabc
 378     def=defdefdef
 379     *** Failers
 380     abc=defdef
 381
 382 /^(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\11*(\3\4)\1(?#)2$/
 383     abcdefghijkcda2
 384     abcdefghijkkkkcda2
 385
 386 /(cat(a(ract|tonic)|erpillar)) \1()2(3)/
 387     cataract cataract23
 388     catatonic catatonic23
 389     caterpillar caterpillar23
 390
 391
 392 /^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]/
 393     From abcd  Mon Sep 01 12:33:02 1997
 394
 395 /^From\s+\S+\s+([a-zA-Z]{3}\s+){2}\d{1,2}\s+\d\d:\d\d/
 396     From abcd  Mon Sep 01 12:33:02 1997
 397     From abcd  Mon Sep  1 12:33:02 1997
 398     *** Failers
 399     From abcd  Sep 01 12:33:02 1997
 400
 401 /^12.34/s
 402     12\n34
 403     12\r34
 404
 405 /\w+(?=\t)/
 406     the quick brown\t fox
 407
 408 /foo(?!bar)(.*)/
 409     foobar is foolish see?
 410
 411 /(?:(?!foo)...|^.{0,2})bar(.*)/
 412     foobar crowbar etc
 413     barrel
 414     2barrel
 415     A barrel
 416
 417 /^(\D*)(?=\d)(?!123)/
 418     abc456
 419     *** Failers
 420     abc123
 421
 422 /^1234(?# test newlines
 423   inside)/
 424     1234
 425
 426 /^1234 #comment in extended re
 427   /x
 428     1234
 429
 430 /#rhubarb
 431   abcd/x
 432     abcd
 433
 434 /^abcd#rhubarb/x
 435     abcd
 436
 437 /^(a)\1{2,3}(.)/
 438     aaab
 439     aaaab
 440     aaaaab
 441     aaaaaab
 442
 443 /(?!^)abc/
 444     the abc
 445     *** Failers
 446     abc
 447
 448 /(?=^)abc/
 449     abc
 450     *** Failers
 451     the abc
 452
 453 /^[ab]{1,3}(ab*|b)/
 454     aabbbbb
 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 /  (?: [\040\t] |  \(
 466 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 467 \)  )*                          # optional leading comment
 468 (?:    (?:
 469 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 470 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 471 |
 472 " (?:                      # opening quote...
 473 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
 474 |                     #    or
 475 \\ [^\x80-\xff]           #   Escaped something (something != CR)
 476 )* "  # closing quote
 477 )                    # initial word
 478 (?:  (?: [\040\t] |  \(
 479 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 480 \)  )*  \.  (?: [\040\t] |  \(
 481 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 482 \)  )*   (?:
 483 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 484 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 485 |
 486 " (?:                      # opening quote...
 487 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
 488 |                     #    or
 489 \\ [^\x80-\xff]           #   Escaped something (something != CR)
 490 )* "  # closing quote
 491 )  )* # further okay, if led by a period
 492 (?: [\040\t] |  \(
 493 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 494 \)  )*  @  (?: [\040\t] |  \(
 495 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 496 \)  )*    (?:
 497 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 498 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 499 |   \[                         # [
 500 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 501 \]                        #           ]
 502 )                           # initial subdomain
 503 (?:                                  #
 504 (?: [\040\t] |  \(
 505 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 506 \)  )*  \.                        # if led by a period...
 507 (?: [\040\t] |  \(
 508 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 509 \)  )*   (?:
 510 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 511 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 512 |   \[                         # [
 513 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 514 \]                        #           ]
 515 )                     #   ...further okay
 516 )*
 517 # address
 518 |                     #  or
 519 (?:
 520 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 521 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 522 |
 523 " (?:                      # opening quote...
 524 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
 525 |                     #    or
 526 \\ [^\x80-\xff]           #   Escaped something (something != CR)
 527 )* "  # closing quote
 528 )             # one word, optionally followed by....
 529 (?:
 530 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037]  |  # atom and space parts, or...
 531 \(
 532 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 533 \)       |  # comments, or...
 534
 535 " (?:                      # opening quote...
 536 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
 537 |                     #    or
 538 \\ [^\x80-\xff]           #   Escaped something (something != CR)
 539 )* "  # closing quote
 540 # quoted strings
 541 )*
 542 <  (?: [\040\t] |  \(
 543 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 544 \)  )*                     # leading <
 545 (?:  @  (?: [\040\t] |  \(
 546 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 547 \)  )*    (?:
 548 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 549 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 550 |   \[                         # [
 551 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 552 \]                        #           ]
 553 )                           # initial subdomain
 554 (?:                                  #
 555 (?: [\040\t] |  \(
 556 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 557 \)  )*  \.                        # if led by a period...
 558 (?: [\040\t] |  \(
 559 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 560 \)  )*   (?:
 561 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 562 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 563 |   \[                         # [
 564 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 565 \]                        #           ]
 566 )                     #   ...further okay
 567 )*
 568
 569 (?:  (?: [\040\t] |  \(
 570 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 571 \)  )*  ,  (?: [\040\t] |  \(
 572 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 573 \)  )*  @  (?: [\040\t] |  \(
 574 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 575 \)  )*    (?:
 576 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 577 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 578 |   \[                         # [
 579 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 580 \]                        #           ]
 581 )                           # initial subdomain
 582 (?:                                  #
 583 (?: [\040\t] |  \(
 584 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 585 \)  )*  \.                        # if led by a period...
 586 (?: [\040\t] |  \(
 587 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 588 \)  )*   (?:
 589 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 590 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 591 |   \[                         # [
 592 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 593 \]                        #           ]
 594 )                     #   ...further okay
 595 )*
 596 )* # further okay, if led by comma
 597 :                                # closing colon
 598 (?: [\040\t] |  \(
 599 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 600 \)  )*  )? #       optional route
 601 (?:
 602 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 603 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 604 |
 605 " (?:                      # opening quote...
 606 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
 607 |                     #    or
 608 \\ [^\x80-\xff]           #   Escaped something (something != CR)
 609 )* "  # closing quote
 610 )                    # initial word
 611 (?:  (?: [\040\t] |  \(
 612 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 613 \)  )*  \.  (?: [\040\t] |  \(
 614 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 615 \)  )*   (?:
 616 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 617 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 618 |
 619 " (?:                      # opening quote...
 620 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
 621 |                     #    or
 622 \\ [^\x80-\xff]           #   Escaped something (something != CR)
 623 )* "  # closing quote
 624 )  )* # further okay, if led by a period
 625 (?: [\040\t] |  \(
 626 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 627 \)  )*  @  (?: [\040\t] |  \(
 628 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 629 \)  )*    (?:
 630 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 631 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 632 |   \[                         # [
 633 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 634 \]                        #           ]
 635 )                           # initial subdomain
 636 (?:                                  #
 637 (?: [\040\t] |  \(
 638 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 639 \)  )*  \.                        # if led by a period...
 640 (?: [\040\t] |  \(
 641 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 642 \)  )*   (?:
 643 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 644 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 645 |   \[                         # [
 646 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 647 \]                        #           ]
 648 )                     #   ...further okay
 649 )*
 650 #       address spec
 651 (?: [\040\t] |  \(
 652 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 653 \)  )*  > #                  trailing >
 654 # name and address
 655 )  (?: [\040\t] |  \(
 656 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 657 \)  )*                       # optional trailing comment
 658 /x
 659     Alan Other <user\@dom.ain>
 660     <user\@dom.ain>
 661     user\@dom.ain
 662     \"A. Other\" <user.1234\@dom.ain> (a comment)
 663     A. Other <user.1234\@dom.ain> (a comment)
 664     \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay
 665     A missing angle <user\@some.where
 666     *** Failers
 667     The quick brown fox
 668
 669 /[\040\t]*                    # Nab whitespace.
 670 (?:
 671 \(                              #  (
 672 [^\\\x80-\xff\n\015()] *                             #     normal*
 673 (?:                                 #       (
 674 (?:  \\ [^\x80-\xff]  |
 675 \(                            #  (
 676 [^\\\x80-\xff\n\015()] *                            #     normal*
 677 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 678 \)                           #                       )
 679 )    #         special
 680 [^\\\x80-\xff\n\015()] *                         #         normal*
 681 )*                                  #            )*
 682 \)                             #                )
 683 [\040\t]* )*    # If comment found, allow more spaces.
 684 # optional leading comment
 685 (?:
 686 (?:
 687 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 688 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 689 # Atom
 690 |                       #  or
 691 "                                     # "
 692 [^\\\x80-\xff\n\015"] *                            #   normal
 693 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
 694 "                                     #        "
 695 # Quoted string
 696 )
 697 [\040\t]*                    # Nab whitespace.
 698 (?:
 699 \(                              #  (
 700 [^\\\x80-\xff\n\015()] *                             #     normal*
 701 (?:                                 #       (
 702 (?:  \\ [^\x80-\xff]  |
 703 \(                            #  (
 704 [^\\\x80-\xff\n\015()] *                            #     normal*
 705 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 706 \)                           #                       )
 707 )    #         special
 708 [^\\\x80-\xff\n\015()] *                         #         normal*
 709 )*                                  #            )*
 710 \)                             #                )
 711 [\040\t]* )*    # If comment found, allow more spaces.
 712 (?:
 713 \.
 714 [\040\t]*                    # Nab whitespace.
 715 (?:
 716 \(                              #  (
 717 [^\\\x80-\xff\n\015()] *                             #     normal*
 718 (?:                                 #       (
 719 (?:  \\ [^\x80-\xff]  |
 720 \(                            #  (
 721 [^\\\x80-\xff\n\015()] *                            #     normal*
 722 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 723 \)                           #                       )
 724 )    #         special
 725 [^\\\x80-\xff\n\015()] *                         #         normal*
 726 )*                                  #            )*
 727 \)                             #                )
 728 [\040\t]* )*    # If comment found, allow more spaces.
 729 (?:
 730 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 731 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 732 # Atom
 733 |                       #  or
 734 "                                     # "
 735 [^\\\x80-\xff\n\015"] *                            #   normal
 736 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
 737 "                                     #        "
 738 # Quoted string
 739 )
 740 [\040\t]*                    # Nab whitespace.
 741 (?:
 742 \(                              #  (
 743 [^\\\x80-\xff\n\015()] *                             #     normal*
 744 (?:                                 #       (
 745 (?:  \\ [^\x80-\xff]  |
 746 \(                            #  (
 747 [^\\\x80-\xff\n\015()] *                            #     normal*
 748 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 749 \)                           #                       )
 750 )    #         special
 751 [^\\\x80-\xff\n\015()] *                         #         normal*
 752 )*                                  #            )*
 753 \)                             #                )
 754 [\040\t]* )*    # If comment found, allow more spaces.
 755 # additional words
 756 )*
 757 @
 758 [\040\t]*                    # Nab whitespace.
 759 (?:
 760 \(                              #  (
 761 [^\\\x80-\xff\n\015()] *                             #     normal*
 762 (?:                                 #       (
 763 (?:  \\ [^\x80-\xff]  |
 764 \(                            #  (
 765 [^\\\x80-\xff\n\015()] *                            #     normal*
 766 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 767 \)                           #                       )
 768 )    #         special
 769 [^\\\x80-\xff\n\015()] *                         #         normal*
 770 )*                                  #            )*
 771 \)                             #                )
 772 [\040\t]* )*    # If comment found, allow more spaces.
 773 (?:
 774 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 775 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 776 |
 777 \[                            # [
 778 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
 779 \]                           #           ]
 780 )
 781 [\040\t]*                    # Nab whitespace.
 782 (?:
 783 \(                              #  (
 784 [^\\\x80-\xff\n\015()] *                             #     normal*
 785 (?:                                 #       (
 786 (?:  \\ [^\x80-\xff]  |
 787 \(                            #  (
 788 [^\\\x80-\xff\n\015()] *                            #     normal*
 789 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 790 \)                           #                       )
 791 )    #         special
 792 [^\\\x80-\xff\n\015()] *                         #         normal*
 793 )*                                  #            )*
 794 \)                             #                )
 795 [\040\t]* )*    # If comment found, allow more spaces.
 796 # optional trailing comments
 797 (?:
 798 \.
 799 [\040\t]*                    # Nab whitespace.
 800 (?:
 801 \(                              #  (
 802 [^\\\x80-\xff\n\015()] *                             #     normal*
 803 (?:                                 #       (
 804 (?:  \\ [^\x80-\xff]  |
 805 \(                            #  (
 806 [^\\\x80-\xff\n\015()] *                            #     normal*
 807 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 808 \)                           #                       )
 809 )    #         special
 810 [^\\\x80-\xff\n\015()] *                         #         normal*
 811 )*                                  #            )*
 812 \)                             #                )
 813 [\040\t]* )*    # If comment found, allow more spaces.
 814 (?:
 815 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 816 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 817 |
 818 \[                            # [
 819 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
 820 \]                           #           ]
 821 )
 822 [\040\t]*                    # Nab whitespace.
 823 (?:
 824 \(                              #  (
 825 [^\\\x80-\xff\n\015()] *                             #     normal*
 826 (?:                                 #       (
 827 (?:  \\ [^\x80-\xff]  |
 828 \(                            #  (
 829 [^\\\x80-\xff\n\015()] *                            #     normal*
 830 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 831 \)                           #                       )
 832 )    #         special
 833 [^\\\x80-\xff\n\015()] *                         #         normal*
 834 )*                                  #            )*
 835 \)                             #                )
 836 [\040\t]* )*    # If comment found, allow more spaces.
 837 # optional trailing comments
 838 )*
 839 # address
 840 |                             #  or
 841 (?:
 842 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 843 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 844 # Atom
 845 |                       #  or
 846 "                                     # "
 847 [^\\\x80-\xff\n\015"] *                            #   normal
 848 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
 849 "                                     #        "
 850 # Quoted string
 851 )
 852 # leading word
 853 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] *               # "normal" atoms and or spaces
 854 (?:
 855 (?:
 856 \(                              #  (
 857 [^\\\x80-\xff\n\015()] *                             #     normal*
 858 (?:                                 #       (
 859 (?:  \\ [^\x80-\xff]  |
 860 \(                            #  (
 861 [^\\\x80-\xff\n\015()] *                            #     normal*
 862 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 863 \)                           #                       )
 864 )    #         special
 865 [^\\\x80-\xff\n\015()] *                         #         normal*
 866 )*                                  #            )*
 867 \)                             #                )
 868 |
 869 "                                     # "
 870 [^\\\x80-\xff\n\015"] *                            #   normal
 871 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
 872 "                                     #        "
 873 ) # "special" comment or quoted string
 874 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] *            #  more "normal"
 875 )*
 876 <
 877 [\040\t]*                    # Nab whitespace.
 878 (?:
 879 \(                              #  (
 880 [^\\\x80-\xff\n\015()] *                             #     normal*
 881 (?:                                 #       (
 882 (?:  \\ [^\x80-\xff]  |
 883 \(                            #  (
 884 [^\\\x80-\xff\n\015()] *                            #     normal*
 885 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 886 \)                           #                       )
 887 )    #         special
 888 [^\\\x80-\xff\n\015()] *                         #         normal*
 889 )*                                  #            )*
 890 \)                             #                )
 891 [\040\t]* )*    # If comment found, allow more spaces.
 892 # <
 893 (?:
 894 @
 895 [\040\t]*                    # Nab whitespace.
 896 (?:
 897 \(                              #  (
 898 [^\\\x80-\xff\n\015()] *                             #     normal*
 899 (?:                                 #       (
 900 (?:  \\ [^\x80-\xff]  |
 901 \(                            #  (
 902 [^\\\x80-\xff\n\015()] *                            #     normal*
 903 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 904 \)                           #                       )
 905 )    #         special
 906 [^\\\x80-\xff\n\015()] *                         #         normal*
 907 )*                                  #            )*
 908 \)                             #                )
 909 [\040\t]* )*    # If comment found, allow more spaces.
 910 (?:
 911 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 912 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 913 |
 914 \[                            # [
 915 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
 916 \]                           #           ]
 917 )
 918 [\040\t]*                    # Nab whitespace.
 919 (?:
 920 \(                              #  (
 921 [^\\\x80-\xff\n\015()] *                             #     normal*
 922 (?:                                 #       (
 923 (?:  \\ [^\x80-\xff]  |
 924 \(                            #  (
 925 [^\\\x80-\xff\n\015()] *                            #     normal*
 926 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 927 \)                           #                       )
 928 )    #         special
 929 [^\\\x80-\xff\n\015()] *                         #         normal*
 930 )*                                  #            )*
 931 \)                             #                )
 932 [\040\t]* )*    # If comment found, allow more spaces.
 933 # optional trailing comments
 934 (?:
 935 \.
 936 [\040\t]*                    # Nab whitespace.
 937 (?:
 938 \(                              #  (
 939 [^\\\x80-\xff\n\015()] *                             #     normal*
 940 (?:                                 #       (
 941 (?:  \\ [^\x80-\xff]  |
 942 \(                            #  (
 943 [^\\\x80-\xff\n\015()] *                            #     normal*
 944 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 945 \)                           #                       )
 946 )    #         special
 947 [^\\\x80-\xff\n\015()] *                         #         normal*
 948 )*                                  #            )*
 949 \)                             #                )
 950 [\040\t]* )*    # If comment found, allow more spaces.
 951 (?:
 952 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 953 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 954 |
 955 \[                            # [
 956 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
 957 \]                           #           ]
 958 )
 959 [\040\t]*                    # Nab whitespace.
 960 (?:
 961 \(                              #  (
 962 [^\\\x80-\xff\n\015()] *                             #     normal*
 963 (?:                                 #       (
 964 (?:  \\ [^\x80-\xff]  |
 965 \(                            #  (
 966 [^\\\x80-\xff\n\015()] *                            #     normal*
 967 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 968 \)                           #                       )
 969 )    #         special
 970 [^\\\x80-\xff\n\015()] *                         #         normal*
 971 )*                                  #            )*
 972 \)                             #                )
 973 [\040\t]* )*    # If comment found, allow more spaces.
 974 # optional trailing comments
 975 )*
 976 (?: ,
 977 [\040\t]*                    # Nab whitespace.
 978 (?:
 979 \(                              #  (
 980 [^\\\x80-\xff\n\015()] *                             #     normal*
 981 (?:                                 #       (
 982 (?:  \\ [^\x80-\xff]  |
 983 \(                            #  (
 984 [^\\\x80-\xff\n\015()] *                            #     normal*
 985 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
 986 \)                           #                       )
 987 )    #         special
 988 [^\\\x80-\xff\n\015()] *                         #         normal*
 989 )*                                  #            )*
 990 \)                             #                )
 991 [\040\t]* )*    # If comment found, allow more spaces.
 992 @
 993 [\040\t]*                    # Nab whitespace.
 994 (?:
 995 \(                              #  (
 996 [^\\\x80-\xff\n\015()] *                             #     normal*
 997 (?:                                 #       (
 998 (?:  \\ [^\x80-\xff]  |
 999 \(                            #  (
1000 [^\\\x80-\xff\n\015()] *                            #     normal*
1001 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1002 \)                           #                       )
1003 )    #         special
1004 [^\\\x80-\xff\n\015()] *                         #         normal*
1005 )*                                  #            )*
1006 \)                             #                )
1007 [\040\t]* )*    # If comment found, allow more spaces.
1008 (?:
1009 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1010 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1011 |
1012 \[                            # [
1013 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1014 \]                           #           ]
1015 )
1016 [\040\t]*                    # Nab whitespace.
1017 (?:
1018 \(                              #  (
1019 [^\\\x80-\xff\n\015()] *                             #     normal*
1020 (?:                                 #       (
1021 (?:  \\ [^\x80-\xff]  |
1022 \(                            #  (
1023 [^\\\x80-\xff\n\015()] *                            #     normal*
1024 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1025 \)                           #                       )
1026 )    #         special
1027 [^\\\x80-\xff\n\015()] *                         #         normal*
1028 )*                                  #            )*
1029 \)                             #                )
1030 [\040\t]* )*    # If comment found, allow more spaces.
1031 # optional trailing comments
1032 (?:
1033 \.
1034 [\040\t]*                    # Nab whitespace.
1035 (?:
1036 \(                              #  (
1037 [^\\\x80-\xff\n\015()] *                             #     normal*
1038 (?:                                 #       (
1039 (?:  \\ [^\x80-\xff]  |
1040 \(                            #  (
1041 [^\\\x80-\xff\n\015()] *                            #     normal*
1042 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1043 \)                           #                       )
1044 )    #         special
1045 [^\\\x80-\xff\n\015()] *                         #         normal*
1046 )*                                  #            )*
1047 \)                             #                )
1048 [\040\t]* )*    # If comment found, allow more spaces.
1049 (?:
1050 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1051 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1052 |
1053 \[                            # [
1054 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1055 \]                           #           ]
1056 )
1057 [\040\t]*                    # Nab whitespace.
1058 (?:
1059 \(                              #  (
1060 [^\\\x80-\xff\n\015()] *                             #     normal*
1061 (?:                                 #       (
1062 (?:  \\ [^\x80-\xff]  |
1063 \(                            #  (
1064 [^\\\x80-\xff\n\015()] *                            #     normal*
1065 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1066 \)                           #                       )
1067 )    #         special
1068 [^\\\x80-\xff\n\015()] *                         #         normal*
1069 )*                                  #            )*
1070 \)                             #                )
1071 [\040\t]* )*    # If comment found, allow more spaces.
1072 # optional trailing comments
1073 )*
1074 )*  # additional domains
1075 :
1076 [\040\t]*                    # Nab whitespace.
1077 (?:
1078 \(                              #  (
1079 [^\\\x80-\xff\n\015()] *                             #     normal*
1080 (?:                                 #       (
1081 (?:  \\ [^\x80-\xff]  |
1082 \(                            #  (
1083 [^\\\x80-\xff\n\015()] *                            #     normal*
1084 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1085 \)                           #                       )
1086 )    #         special
1087 [^\\\x80-\xff\n\015()] *                         #         normal*
1088 )*                                  #            )*
1089 \)                             #                )
1090 [\040\t]* )*    # If comment found, allow more spaces.
1091 # optional trailing comments
1092 )?     #       optional route
1093 (?:
1094 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1095 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1096 # Atom
1097 |                       #  or
1098 "                                     # "
1099 [^\\\x80-\xff\n\015"] *                            #   normal
1100 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
1101 "                                     #        "
1102 # Quoted string
1103 )
1104 [\040\t]*                    # Nab whitespace.
1105 (?:
1106 \(                              #  (
1107 [^\\\x80-\xff\n\015()] *                             #     normal*
1108 (?:                                 #       (
1109 (?:  \\ [^\x80-\xff]  |
1110 \(                            #  (
1111 [^\\\x80-\xff\n\015()] *                            #     normal*
1112 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1113 \)                           #                       )
1114 )    #         special
1115 [^\\\x80-\xff\n\015()] *                         #         normal*
1116 )*                                  #            )*
1117 \)                             #                )
1118 [\040\t]* )*    # If comment found, allow more spaces.
1119 (?:
1120 \.
1121 [\040\t]*                    # Nab whitespace.
1122 (?:
1123 \(                              #  (
1124 [^\\\x80-\xff\n\015()] *                             #     normal*
1125 (?:                                 #       (
1126 (?:  \\ [^\x80-\xff]  |
1127 \(                            #  (
1128 [^\\\x80-\xff\n\015()] *                            #     normal*
1129 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1130 \)                           #                       )
1131 )    #         special
1132 [^\\\x80-\xff\n\015()] *                         #         normal*
1133 )*                                  #            )*
1134 \)                             #                )
1135 [\040\t]* )*    # If comment found, allow more spaces.
1136 (?:
1137 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1138 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1139 # Atom
1140 |                       #  or
1141 "                                     # "
1142 [^\\\x80-\xff\n\015"] *                            #   normal
1143 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
1144 "                                     #        "
1145 # Quoted string
1146 )
1147 [\040\t]*                    # Nab whitespace.
1148 (?:
1149 \(                              #  (
1150 [^\\\x80-\xff\n\015()] *                             #     normal*
1151 (?:                                 #       (
1152 (?:  \\ [^\x80-\xff]  |
1153 \(                            #  (
1154 [^\\\x80-\xff\n\015()] *                            #     normal*
1155 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1156 \)                           #                       )
1157 )    #         special
1158 [^\\\x80-\xff\n\015()] *                         #         normal*
1159 )*                                  #            )*
1160 \)                             #                )
1161 [\040\t]* )*    # If comment found, allow more spaces.
1162 # additional words
1163 )*
1164 @
1165 [\040\t]*                    # Nab whitespace.
1166 (?:
1167 \(                              #  (
1168 [^\\\x80-\xff\n\015()] *                             #     normal*
1169 (?:                                 #       (
1170 (?:  \\ [^\x80-\xff]  |
1171 \(                            #  (
1172 [^\\\x80-\xff\n\015()] *                            #     normal*
1173 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1174 \)                           #                       )
1175 )    #         special
1176 [^\\\x80-\xff\n\015()] *                         #         normal*
1177 )*                                  #            )*
1178 \)                             #                )
1179 [\040\t]* )*    # If comment found, allow more spaces.
1180 (?:
1181 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1182 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1183 |
1184 \[                            # [
1185 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1186 \]                           #           ]
1187 )
1188 [\040\t]*                    # Nab whitespace.
1189 (?:
1190 \(                              #  (
1191 [^\\\x80-\xff\n\015()] *                             #     normal*
1192 (?:                                 #       (
1193 (?:  \\ [^\x80-\xff]  |
1194 \(                            #  (
1195 [^\\\x80-\xff\n\015()] *                            #     normal*
1196 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1197 \)                           #                       )
1198 )    #         special
1199 [^\\\x80-\xff\n\015()] *                         #         normal*
1200 )*                                  #            )*
1201 \)                             #                )
1202 [\040\t]* )*    # If comment found, allow more spaces.
1203 # optional trailing comments
1204 (?:
1205 \.
1206 [\040\t]*                    # Nab whitespace.
1207 (?:
1208 \(                              #  (
1209 [^\\\x80-\xff\n\015()] *                             #     normal*
1210 (?:                                 #       (
1211 (?:  \\ [^\x80-\xff]  |
1212 \(                            #  (
1213 [^\\\x80-\xff\n\015()] *                            #     normal*
1214 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1215 \)                           #                       )
1216 )    #         special
1217 [^\\\x80-\xff\n\015()] *                         #         normal*
1218 )*                                  #            )*
1219 \)                             #                )
1220 [\040\t]* )*    # If comment found, allow more spaces.
1221 (?:
1222 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1223 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1224 |
1225 \[                            # [
1226 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1227 \]                           #           ]
1228 )
1229 [\040\t]*                    # Nab whitespace.
1230 (?:
1231 \(                              #  (
1232 [^\\\x80-\xff\n\015()] *                             #     normal*
1233 (?:                                 #       (
1234 (?:  \\ [^\x80-\xff]  |
1235 \(                            #  (
1236 [^\\\x80-\xff\n\015()] *                            #     normal*
1237 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1238 \)                           #                       )
1239 )    #         special
1240 [^\\\x80-\xff\n\015()] *                         #         normal*
1241 )*                                  #            )*
1242 \)                             #                )
1243 [\040\t]* )*    # If comment found, allow more spaces.
1244 # optional trailing comments
1245 )*
1246 #       address spec
1247 >                    #                 >
1248 # name and address
1249 )
1250 /x
1251     Alan Other <user\@dom.ain>
1252     <user\@dom.ain>
1253     user\@dom.ain
1254     \"A. Other\" <user.1234\@dom.ain> (a comment)
1255     A. Other <user.1234\@dom.ain> (a comment)
1256     \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay
1257     A missing angle <user\@some.where
1258     *** Failers
1259     The quick brown fox
1260
1261 /abc\0def\00pqr\000xyz\0000AB/
1262     abc\0def\00pqr\000xyz\0000AB
1263     abc456 abc\0def\00pqr\000xyz\0000ABCDE
1264
1265 /abc\x0def\x00pqr\x000xyz\x0000AB/
1266     abc\x0def\x00pqr\x000xyz\x0000AB
1267     abc456 abc\x0def\x00pqr\x000xyz\x0000ABCDE
1268
1269 /^[\000-\037]/
1270     \0A
1271     \01B
1272     \037C
1273
1274 /\0*/
1275     \0\0\0\0
1276
1277 /A\x0{2,3}Z/
1278     The A\x0\x0Z
1279     An A\0\x0\0Z
1280     *** Failers
1281     A\0Z
1282     A\0\x0\0\x0Z
1283
1284 /^(cow|)\1(bell)/
1285     cowcowbell
1286     bell
1287     *** Failers
1288     cowbell
1289
1290 /^\s/
1291     \040abc
1292     \x0cabc
1293     \nabc
1294     \rabc
1295     \tabc
1296     *** Failers
1297     abc
1298
1299 /^a     b
1300   \r  \f  c/x
1301     abc
1302
1303 /^(a|)\1*b/
1304     ab
1305     aaaab
1306     b
1307     *** Failers
1308     acb
1309
1310 /^(a|)\1+b/
1311     aab
1312     aaaab
1313     b
1314     *** Failers
1315     ab
1316
1317 /^(a|)\1?b/
1318     ab
1319     aab
1320     b
1321     *** Failers
1322     acb
1323
1324 /^(a|)\1{2}b/
1325     aaab
1326     b
1327     *** Failers
1328     ab
1329     aab
1330     aaaab
1331
1332 /^(a|)\1{2,3}b/
1333     aaab
1334     aaaab
1335     b
1336     *** Failers
1337     ab
1338     aab
1339     aaaaab
1340
1341 /ab{1,3}bc/
1342     abbbbc
1343     abbbc
1344     abbc
1345     *** Failers
1346     abc
1347     abbbbbc
1348
1349 /([^.]*)\.([^:]*):[T ]+(.*)/
1350     track1.title:TBlah blah blah
1351
1352 /([^.]*)\.([^:]*):[T ]+(.*)/i
1353     track1.title:TBlah blah blah
1354
1355 /([^.]*)\.([^:]*):[t ]+(.*)/i
1356     track1.title:TBlah blah blah
1357
1358 /^[W-c]+$/
1359     WXY_^abc
1360     ***Failers
1361     wxy
1362
1363 /^[W-c]+$/i
1364     WXY_^abc
1365     wxy_^ABC
1366
1367 /^[\x3f-\x5F]+$/i
1368     WXY_^abc
1369     wxy_^ABC
1370
1371 /^abc$/m
1372     abc
1373     qqq\nabc
1374     abc\nzzz
1375     qqq\nabc\nzzz
1376
1377 /^abc$/
1378     abc
1379     *** Failers
1380     qqq\nabc
1381     abc\nzzz
1382     qqq\nabc\nzzz
1383
1384 /\Aabc\Z/m
1385     abc
1386     abc\n
1387     *** Failers
1388     qqq\nabc
1389     abc\nzzz
1390     qqq\nabc\nzzz
1391
1392 /\A(.)*\Z/s
1393     abc\ndef
1394
1395 /\A(.)*\Z/m
1396     *** Failers
1397     abc\ndef
1398
1399 /(?:b)|(?::+)/
1400     b::c
1401     c::b
1402
1403 /[-az]+/
1404     az-
1405     *** Failers
1406     b
1407
1408 /[az-]+/
1409     za-
1410     *** Failers
1411     b
1412
1413 /[a\-z]+/
1414     a-z
1415     *** Failers
1416     b
1417
1418 /[a-z]+/
1419     abcdxyz
1420
1421 /[\d-]+/
1422     12-34
1423     *** Failers
1424     aaa
1425
1426 /[\d-z]+/
1427     12-34z
1428     *** Failers
1429     aaa
1430
1431 /\x5c/
1432     \\
1433
1434 /\x20Z/
1435     the Zoo
1436     *** Failers
1437     Zulu
1438
1439 /(abc)\1/i
1440     abcabc
1441     ABCabc
1442     abcABC
1443
1444 /ab{3cd/
1445     ab{3cd
1446
1447 /ab{3,cd/
1448     ab{3,cd
1449
1450 /ab{3,4a}cd/
1451     ab{3,4a}cd
1452
1453 /{4,5a}bc/
1454     {4,5a}bc
1455
1456 /^a.b/
1457     a\rb
1458     *** Failers
1459     a\nb
1460
1461 /abc$/
1462     abc
1463     abc\n
1464     *** Failers
1465     abc\ndef
1466
1467 /(abc)\123/
1468     abc\x53
1469
1470 /(abc)\223/
1471     abc\x93
1472
1473 /(abc)\323/
1474     abc\xd3
1475
1476 /(abc)\500/
1477     abc\x40
1478     abc\100
1479
1480 /(abc)\5000/
1481     abc\x400
1482     abc\x40\x30
1483     abc\1000
1484     abc\100\x30
1485     abc\100\060
1486     abc\100\60
1487
1488 /abc\81/
1489     abc\081
1490     abc\0\x38\x31
1491
1492 /abc\91/
1493     abc\091
1494     abc\0\x39\x31
1495
1496 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\12\123/
1497     abcdefghijkllS
1498
1499 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\12\123/
1500     abcdefghijk\12S
1501
1502 /ab\gdef/
1503     abgdef
1504
1505 /a{0}bc/
1506     bc
1507
1508 /(a|(bc)){0,0}?xyz/
1509     xyz
1510
1511 /abc[\10]de/
1512     abc\010de
1513
1514 /abc[\1]de/
1515     abc\1de
1516
1517 /(abc)[\1]de/
1518     abc\1de
1519
1520 /a.b(?s)/
1521     a\nb
1522
1523 /^([^a])([^\b])([^c]*)([^d]{3,4})/
1524     baNOTccccd
1525     baNOTcccd
1526     baNOTccd
1527     bacccd
1528     *** Failers
1529     anything
1530     b\bc
1531     baccd
1532
1533 /[^a]/
1534     Abc
1535
1536 /[^a]/i
1537     Abc
1538
1539 /[^a]+/
1540     AAAaAbc
1541
1542 /[^a]+/i
1543     AAAaAbc
1544
1545 /[^a]+/
1546     bbb\nccc
1547
1548 /[^k]$/
1549     abc
1550     *** Failers
1551     abk
1552
1553 /[^k]{2,3}$/
1554     abc
1555     kbc
1556     kabc
1557     *** Failers
1558     abk
1559     akb
1560     akk
1561
1562 /^\d{8,}\@.+[^k]$/
1563     12345678\@a.b.c.d
1564     123456789\@x.y.z
1565     *** Failers
1566     12345678\@x.y.uk
1567     1234567\@a.b.c.d
1568
1569 /(a)\1{8,}/
1570     aaaaaaaaa
1571     aaaaaaaaaa
1572     *** Failers
1573     aaaaaaa
1574
1575 /[^a]/
1576     aaaabcd
1577     aaAabcd
1578
1579 /[^a]/i
1580     aaaabcd
1581     aaAabcd
1582
1583 /[^az]/
1584     aaaabcd
1585     aaAabcd
1586
1587 /[^az]/i
1588     aaaabcd
1589     aaAabcd
1590
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  \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
1593
1594 /P[^*]TAIRE[^*]{1,6}?LL/
1595     xxxxxxxxxxxPSTAIREISLLxxxxxxxxx
1596
1597 /P[^*]TAIRE[^*]{1,}?LL/
1598     xxxxxxxxxxxPSTAIREISLLxxxxxxxxx
1599
1600 /(\.\d\d[1-9]?)\d+/
1601     1.230003938
1602     1.875000282
1603     1.235
1604
1605 /(\.\d\d((?=0)|\d(?=\d)))/
1606     1.230003938
1607     1.875000282
1608     *** Failers
1609     1.235
1610
1611 /a(?)b/
1612     ab
1613
1614 /\b(foo)\s+(\w+)/i
1615     Food is on the foo table
1616
1617 /foo(.*)bar/
1618     The food is under the bar in the barn.
1619
1620 /foo(.*?)bar/
1621     The food is under the bar in the barn.
1622
1623 /(.*)(\d*)/
1624     I have 2 numbers: 53147
1625
1626 /(.*)(\d+)/
1627     I have 2 numbers: 53147
1628
1629 /(.*?)(\d*)/
1630     I have 2 numbers: 53147
1631
1632 /(.*?)(\d+)/
1633     I have 2 numbers: 53147
1634
1635 /(.*)(\d+)$/
1636     I have 2 numbers: 53147
1637
1638 /(.*?)(\d+)$/
1639     I have 2 numbers: 53147
1640
1641 /(.*)\b(\d+)$/
1642     I have 2 numbers: 53147
1643
1644 /(.*\D)(\d+)$/
1645     I have 2 numbers: 53147
1646
1647 /^\D*(?!123)/
1648     ABC123
1649
1650 /^(\D*)(?=\d)(?!123)/
1651     ABC445
1652     *** Failers
1653     ABC123
1654
1655 /^[W-]46]/
1656     W46]789
1657     -46]789
1658     *** Failers
1659     Wall
1660     Zebra
1661     42
1662     [abcd]
1663     ]abcd[
1664
1665 /^[W-\]46]/
1666     W46]789
1667     Wall
1668     Zebra
1669     Xylophone
1670     42
1671     [abcd]
1672     ]abcd[
1673     \\backslash
1674     *** Failers
1675     -46]789
1676     well
1677
1678 /\d\d\/\d\d\/\d\d\d\d/
1679     01/01/2000
1680
1681 /word (?:[a-zA-Z0-9]+ ){0,10}otherword/
1682   word cat dog elephant mussel cow horse canary baboon snake shark otherword
1683   word cat dog elephant mussel cow horse canary baboon snake shark
1684
1685 /word (?:[a-zA-Z0-9]+ ){0,300}otherword/
1686   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
1687
1688 /^(a){0,0}/
1689     bcd
1690     abc
1691     aab
1692
1693 /^(a){0,1}/
1694     bcd
1695     abc
1696     aab
1697
1698 /^(a){0,2}/
1699     bcd
1700     abc
1701     aab
1702
1703 /^(a){0,3}/
1704     bcd
1705     abc
1706     aab
1707     aaa
1708
1709 /^(a){0,}/
1710     bcd
1711     abc
1712     aab
1713     aaa
1714     aaaaaaaa
1715
1716 /^(a){1,1}/
1717     bcd
1718     abc
1719     aab
1720
1721 /^(a){1,2}/
1722     bcd
1723     abc
1724     aab
1725
1726 /^(a){1,3}/
1727     bcd
1728     abc
1729     aab
1730     aaa
1731
1732 /^(a){1,}/
1733     bcd
1734     abc
1735     aab
1736     aaa
1737     aaaaaaaa
1738
1739 /.*\.gif/
1740     borfle\nbib.gif\nno
1741
1742 /.{0,}\.gif/
1743     borfle\nbib.gif\nno
1744
1745 /.*\.gif/m
1746     borfle\nbib.gif\nno
1747
1748 /.*\.gif/s
1749     borfle\nbib.gif\nno
1750
1751 /.*\.gif/ms
1752     borfle\nbib.gif\nno
1753
1754 /.*$/
1755     borfle\nbib.gif\nno
1756
1757 /.*$/m
1758     borfle\nbib.gif\nno
1759
1760 /.*$/s
1761     borfle\nbib.gif\nno
1762
1763 /.*$/ms
1764     borfle\nbib.gif\nno
1765
1766 /.*$/
1767     borfle\nbib.gif\nno\n
1768
1769 /.*$/m
1770     borfle\nbib.gif\nno\n
1771
1772 /.*$/s
1773     borfle\nbib.gif\nno\n
1774
1775 /.*$/ms
1776     borfle\nbib.gif\nno\n
1777
1778 /(.*X|^B)/
1779     abcde\n1234Xyz
1780     BarFoo
1781     *** Failers
1782     abcde\nBar
1783
1784 /(.*X|^B)/m
1785     abcde\n1234Xyz
1786     BarFoo
1787     abcde\nBar
1788
1789 /(.*X|^B)/s
1790     abcde\n1234Xyz
1791     BarFoo
1792     *** Failers
1793     abcde\nBar
1794
1795 /(.*X|^B)/ms
1796     abcde\n1234Xyz
1797     BarFoo
1798     abcde\nBar
1799
1800 /(?s)(.*X|^B)/
1801     abcde\n1234Xyz
1802     BarFoo
1803     *** Failers
1804     abcde\nBar
1805
1806 /(?s:.*X|^B)/
1807     abcde\n1234Xyz
1808     BarFoo
1809     *** Failers
1810     abcde\nBar
1811
1812 /^.*B/
1813     **** Failers
1814     abc\nB
1815
1816 /(?s)^.*B/
1817     abc\nB
1818
1819 /(?m)^.*B/
1820     abc\nB
1821
1822 /(?ms)^.*B/
1823     abc\nB
1824
1825 /(?ms)^B/
1826     abc\nB
1827
1828 /(?s)B$/
1829     B\n
1830
1831 /^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]/
1832     123456654321
1833
1834 /^\d\d\d\d\d\d\d\d\d\d\d\d/
1835     123456654321
1836
1837 /^[\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d]/
1838     123456654321
1839
1840 /^[abc]{12}/
1841     abcabcabcabc
1842
1843 /^[a-c]{12}/
1844     abcabcabcabc
1845
1846 /^(a|b|c){12}/
1847     abcabcabcabc
1848
1849 /^[abcdefghijklmnopqrstuvwxy0123456789]/
1850     n
1851     *** Failers
1852     z
1853
1854 /abcde{0,0}/
1855     abcd
1856     *** Failers
1857     abce
1858
1859 /ab[cd]{0,0}e/
1860     abe
1861     *** Failers
1862     abcde
1863
1864 /ab(c){0,0}d/
1865     abd
1866     *** Failers
1867     abcd
1868
1869 /a(b*)/
1870     a
1871     ab
1872     abbbb
1873     *** Failers
1874     bbbbb
1875
1876 /ab\d{0}e/
1877     abe
1878     *** Failers
1879     ab1e
1880
1881 /"([^\\"]+|\\.)*"/
1882     the \"quick\" brown fox
1883     \"the \\\"quick\\\" brown fox\"
1884
1885 /.*?/g+
1886     abc
1887
1888 /\b/g+
1889     abc
1890
1891 /\b/+g
1892     abc
1893
1894 //g
1895     abc
1896
1897 /<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
1898   <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>
1899
1900 /a[^a]b/
1901     acb
1902     a\nb
1903
1904 /a.b/
1905     acb
1906     *** Failers
1907     a\nb
1908
1909 /a[^a]b/s
1910     acb
1911     a\nb
1912
1913 /a.b/s
1914     acb
1915     a\nb
1916
1917 /^(b+?|a){1,2}?c/
1918     bac
1919     bbac
1920     bbbac
1921     bbbbac
1922     bbbbbac
1923
1924 /^(b+|a){1,2}?c/
1925     bac
1926     bbac
1927     bbbac
1928     bbbbac
1929     bbbbbac
1930
1931 /(?!\A)x/m
1932     x\nb\n
1933     a\bx\n
1934
1935 /\x0{ab}/
1936     \0{ab}
1937
1938 /(A|B)*?CD/
1939     CD
1940
1941 /(A|B)*CD/
1942     CD
1943
1944 /(AB)*?\1/
1945     ABABAB
1946
1947 /(AB)*\1/
1948     ABABAB
1949
1950 / End of testinput1 /