rubbos/app/httpd-2.0.64/srclib/pcre/testdata/testoutput1

   1 PCRE version 3.9 02-Jan-2002
   2
   3 /the quick brown fox/
   4     the quick brown fox
   5  0: the quick brown fox
   6     The quick brown FOX
   7 No match
   8     What do you know about the quick brown fox?
   9  0: the quick brown fox
  10     What do you know about THE QUICK BROWN FOX?
  11 No match
  12
  13 /The quick brown fox/i
  14     the quick brown fox
  15  0: the quick brown fox
  16     The quick brown FOX
  17  0: The quick brown FOX
  18     What do you know about the quick brown fox?
  19  0: the quick brown fox
  20     What do you know about THE QUICK BROWN FOX?
  21  0: THE QUICK BROWN FOX
  22
  23 /abcd\t\n\r\f\a\e\071\x3b\$\\\?caxyz/
  24     abcd\t\n\r\f\a\e9;\$\\?caxyz
  25  0: abcd\x09\x0a\x0d\x0c\x07\x1b9;$\?caxyz
  26
  27 /a*abc?xyz+pqr{3}ab{2,}xy{4,5}pq{0,6}AB{0,}zz/
  28     abxyzpqrrrabbxyyyypqAzz
  29  0: abxyzpqrrrabbxyyyypqAzz
  30     abxyzpqrrrabbxyyyypqAzz
  31  0: abxyzpqrrrabbxyyyypqAzz
  32     aabxyzpqrrrabbxyyyypqAzz
  33  0: aabxyzpqrrrabbxyyyypqAzz
  34     aaabxyzpqrrrabbxyyyypqAzz
  35  0: aaabxyzpqrrrabbxyyyypqAzz
  36     aaaabxyzpqrrrabbxyyyypqAzz
  37  0: aaaabxyzpqrrrabbxyyyypqAzz
  38     abcxyzpqrrrabbxyyyypqAzz
  39  0: abcxyzpqrrrabbxyyyypqAzz
  40     aabcxyzpqrrrabbxyyyypqAzz
  41  0: aabcxyzpqrrrabbxyyyypqAzz
  42     aaabcxyzpqrrrabbxyyyypAzz
  43  0: aaabcxyzpqrrrabbxyyyypAzz
  44     aaabcxyzpqrrrabbxyyyypqAzz
  45  0: aaabcxyzpqrrrabbxyyyypqAzz
  46     aaabcxyzpqrrrabbxyyyypqqAzz
  47  0: aaabcxyzpqrrrabbxyyyypqqAzz
  48     aaabcxyzpqrrrabbxyyyypqqqAzz
  49  0: aaabcxyzpqrrrabbxyyyypqqqAzz
  50     aaabcxyzpqrrrabbxyyyypqqqqAzz
  51  0: aaabcxyzpqrrrabbxyyyypqqqqAzz
  52     aaabcxyzpqrrrabbxyyyypqqqqqAzz
  53  0: aaabcxyzpqrrrabbxyyyypqqqqqAzz
  54     aaabcxyzpqrrrabbxyyyypqqqqqqAzz
  55  0: aaabcxyzpqrrrabbxyyyypqqqqqqAzz
  56     aaaabcxyzpqrrrabbxyyyypqAzz
  57  0: aaaabcxyzpqrrrabbxyyyypqAzz
  58     abxyzzpqrrrabbxyyyypqAzz
  59  0: abxyzzpqrrrabbxyyyypqAzz
  60     aabxyzzzpqrrrabbxyyyypqAzz
  61  0: aabxyzzzpqrrrabbxyyyypqAzz
  62     aaabxyzzzzpqrrrabbxyyyypqAzz
  63  0: aaabxyzzzzpqrrrabbxyyyypqAzz
  64     aaaabxyzzzzpqrrrabbxyyyypqAzz
  65  0: aaaabxyzzzzpqrrrabbxyyyypqAzz
  66     abcxyzzpqrrrabbxyyyypqAzz
  67  0: abcxyzzpqrrrabbxyyyypqAzz
  68     aabcxyzzzpqrrrabbxyyyypqAzz
  69  0: aabcxyzzzpqrrrabbxyyyypqAzz
  70     aaabcxyzzzzpqrrrabbxyyyypqAzz
  71  0: aaabcxyzzzzpqrrrabbxyyyypqAzz
  72     aaaabcxyzzzzpqrrrabbxyyyypqAzz
  73  0: aaaabcxyzzzzpqrrrabbxyyyypqAzz
  74     aaaabcxyzzzzpqrrrabbbxyyyypqAzz
  75  0: aaaabcxyzzzzpqrrrabbbxyyyypqAzz
  76     aaaabcxyzzzzpqrrrabbbxyyyyypqAzz
  77  0: aaaabcxyzzzzpqrrrabbbxyyyyypqAzz
  78     aaabcxyzpqrrrabbxyyyypABzz
  79  0: aaabcxyzpqrrrabbxyyyypABzz
  80     aaabcxyzpqrrrabbxyyyypABBzz
  81  0: aaabcxyzpqrrrabbxyyyypABBzz
  82     >>>aaabxyzpqrrrabbxyyyypqAzz
  83  0: aaabxyzpqrrrabbxyyyypqAzz
  84     >aaaabxyzpqrrrabbxyyyypqAzz
  85  0: aaaabxyzpqrrrabbxyyyypqAzz
  86     >>>>abcxyzpqrrrabbxyyyypqAzz
  87  0: abcxyzpqrrrabbxyyyypqAzz
  88     *** Failers
  89 No match
  90     abxyzpqrrabbxyyyypqAzz
  91 No match
  92     abxyzpqrrrrabbxyyyypqAzz
  93 No match
  94     abxyzpqrrrabxyyyypqAzz
  95 No match
  96     aaaabcxyzzzzpqrrrabbbxyyyyyypqAzz
  97 No match
  98     aaaabcxyzzzzpqrrrabbbxyyypqAzz
  99 No match
 100     aaabcxyzpqrrrabbxyyyypqqqqqqqAzz
 101 No match
 102
 103 /^(abc){1,2}zz/
 104     abczz
 105  0: abczz
 106  1: abc
 107     abcabczz
 108  0: abcabczz
 109  1: abc
 110     *** Failers
 111 No match
 112     zz
 113 No match
 114     abcabcabczz
 115 No match
 116     >>abczz
 117 No match
 118
 119 /^(b+?|a){1,2}?c/
 120     bc
 121  0: bc
 122  1: b
 123     bbc
 124  0: bbc
 125  1: b
 126     bbbc
 127  0: bbbc
 128  1: bb
 129     bac
 130  0: bac
 131  1: a
 132     bbac
 133  0: bbac
 134  1: a
 135     aac
 136  0: aac
 137  1: a
 138     abbbbbbbbbbbc
 139  0: abbbbbbbbbbbc
 140  1: bbbbbbbbbbb
 141     bbbbbbbbbbbac
 142  0: bbbbbbbbbbbac
 143  1: a
 144     *** Failers
 145 No match
 146     aaac
 147 No match
 148     abbbbbbbbbbbac
 149 No match
 150
 151 /^(b+|a){1,2}c/
 152     bc
 153  0: bc
 154  1: b
 155     bbc
 156  0: bbc
 157  1: bb
 158     bbbc
 159  0: bbbc
 160  1: bbb
 161     bac
 162  0: bac
 163  1: a
 164     bbac
 165  0: bbac
 166  1: a
 167     aac
 168  0: aac
 169  1: a
 170     abbbbbbbbbbbc
 171  0: abbbbbbbbbbbc
 172  1: bbbbbbbbbbb
 173     bbbbbbbbbbbac
 174  0: bbbbbbbbbbbac
 175  1: a
 176     *** Failers
 177 No match
 178     aaac
 179 No match
 180     abbbbbbbbbbbac
 181 No match
 182
 183 /^(b+|a){1,2}?bc/
 184     bbc
 185  0: bbc
 186  1: b
 187
 188 /^(b*|ba){1,2}?bc/
 189     babc
 190  0: babc
 191  1: ba
 192     bbabc
 193  0: bbabc
 194  1: ba
 195     bababc
 196  0: bababc
 197  1: ba
 198     *** Failers
 199 No match
 200     bababbc
 201 No match
 202     babababc
 203 No match
 204
 205 /^(ba|b*){1,2}?bc/
 206     babc
 207  0: babc
 208  1: ba
 209     bbabc
 210  0: bbabc
 211  1: ba
 212     bababc
 213  0: bababc
 214  1: ba
 215     *** Failers
 216 No match
 217     bababbc
 218 No match
 219     babababc
 220 No match
 221
 222 /^\ca\cA\c[\c{\c:/
 223     \x01\x01\e;z
 224  0: \x01\x01\x1b;z
 225
 226 /^[ab\]cde]/
 227     athing
 228  0: a
 229     bthing
 230  0: b
 231     ]thing
 232  0: ]
 233     cthing
 234  0: c
 235     dthing
 236  0: d
 237     ething
 238  0: e
 239     *** Failers
 240 No match
 241     fthing
 242 No match
 243     [thing
 244 No match
 245     \\thing
 246 No match
 247
 248 /^[]cde]/
 249     ]thing
 250  0: ]
 251     cthing
 252  0: c
 253     dthing
 254  0: d
 255     ething
 256  0: e
 257     *** Failers
 258 No match
 259     athing
 260 No match
 261     fthing
 262 No match
 263
 264 /^[^ab\]cde]/
 265     fthing
 266  0: f
 267     [thing
 268  0: [
 269     \\thing
 270  0: \
 271     *** Failers
 272  0: *
 273     athing
 274 No match
 275     bthing
 276 No match
 277     ]thing
 278 No match
 279     cthing
 280 No match
 281     dthing
 282 No match
 283     ething
 284 No match
 285
 286 /^[^]cde]/
 287     athing
 288  0: a
 289     fthing
 290  0: f
 291     *** Failers
 292  0: *
 293     ]thing
 294 No match
 295     cthing
 296 No match
 297     dthing
 298 No match
 299     ething
 300 No match
 301
 302 /^\\81/
 303     \81
 304  0: \x81
 305
 306 /^ÿ/
 307     ÿ
 308  0: \xff
 309
 310 /^[0-9]+$/
 311     0
 312  0: 0
 313     1
 314  0: 1
 315     2
 316  0: 2
 317     3
 318  0: 3
 319     4
 320  0: 4
 321     5
 322  0: 5
 323     6
 324  0: 6
 325     7
 326  0: 7
 327     8
 328  0: 8
 329     9
 330  0: 9
 331     10
 332  0: 10
 333     100
 334  0: 100
 335     *** Failers
 336 No match
 337     abc
 338 No match
 339
 340 /^.*nter/
 341     enter
 342  0: enter
 343     inter
 344  0: inter
 345     uponter
 346  0: uponter
 347
 348 /^xxx[0-9]+$/
 349     xxx0
 350  0: xxx0
 351     xxx1234
 352  0: xxx1234
 353     *** Failers
 354 No match
 355     xxx
 356 No match
 357
 358 /^.+[0-9][0-9][0-9]$/
 359     x123
 360  0: x123
 361     xx123
 362  0: xx123
 363     123456
 364  0: 123456
 365     *** Failers
 366 No match
 367     123
 368 No match
 369     x1234
 370  0: x1234
 371
 372 /^.+?[0-9][0-9][0-9]$/
 373     x123
 374  0: x123
 375     xx123
 376  0: xx123
 377     123456
 378  0: 123456
 379     *** Failers
 380 No match
 381     123
 382 No match
 383     x1234
 384  0: x1234
 385
 386 /^([^!]+)!(.+)=apquxz\.ixr\.zzz\.ac\.uk$/
 387     abc!pqr=apquxz.ixr.zzz.ac.uk
 388  0: abc!pqr=apquxz.ixr.zzz.ac.uk
 389  1: abc
 390  2: pqr
 391     *** Failers
 392 No match
 393     !pqr=apquxz.ixr.zzz.ac.uk
 394 No match
 395     abc!=apquxz.ixr.zzz.ac.uk
 396 No match
 397     abc!pqr=apquxz:ixr.zzz.ac.uk
 398 No match
 399     abc!pqr=apquxz.ixr.zzz.ac.ukk
 400 No match
 401
 402 /:/
 403     Well, we need a colon: somewhere
 404  0: :
 405     *** Fail if we don't
 406 No match
 407
 408 /([\da-f:]+)$/i
 409     0abc
 410  0: 0abc
 411  1: 0abc
 412     abc
 413  0: abc
 414  1: abc
 415     fed
 416  0: fed
 417  1: fed
 418     E
 419  0: E
 420  1: E
 421     ::
 422  0: ::
 423  1: ::
 424     5f03:12C0::932e
 425  0: 5f03:12C0::932e
 426  1: 5f03:12C0::932e
 427     fed def
 428  0: def
 429  1: def
 430     Any old stuff
 431  0: ff
 432  1: ff
 433     *** Failers
 434 No match
 435     0zzz
 436 No match
 437     gzzz
 438 No match
 439     fed\x20
 440 No match
 441     Any old rubbish
 442 No match
 443
 444 /^.*\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/
 445     .1.2.3
 446  0: .1.2.3
 447  1: 1
 448  2: 2
 449  3: 3
 450     A.12.123.0
 451  0: A.12.123.0
 452  1: 12
 453  2: 123
 454  3: 0
 455     *** Failers
 456 No match
 457     .1.2.3333
 458 No match
 459     1.2.3
 460 No match
 461     1234.2.3
 462 No match
 463
 464 /^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/
 465     1 IN SOA non-sp1 non-sp2(
 466  0: 1 IN SOA non-sp1 non-sp2(
 467  1: 1
 468  2: non-sp1
 469  3: non-sp2
 470     1    IN    SOA    non-sp1    non-sp2   (
 471  0: 1    IN    SOA    non-sp1    non-sp2   (
 472  1: 1
 473  2: non-sp1
 474  3: non-sp2
 475     *** Failers
 476 No match
 477     1IN SOA non-sp1 non-sp2(
 478 No match
 479
 480 /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/
 481     a.
 482  0: a.
 483     Z.
 484  0: Z.
 485     2.
 486  0: 2.
 487     ab-c.pq-r.
 488  0: ab-c.pq-r.
 489  1: .pq-r
 490     sxk.zzz.ac.uk.
 491  0: sxk.zzz.ac.uk.
 492  1: .uk
 493     x-.y-.
 494  0: x-.y-.
 495  1: .y-
 496     *** Failers
 497 No match
 498     -abc.peq.
 499 No match
 500
 501 /^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/
 502     *.a
 503  0: *.a
 504     *.b0-a
 505  0: *.b0-a
 506  1: 0-a
 507     *.c3-b.c
 508  0: *.c3-b.c
 509  1: 3-b
 510  2: .c
 511     *.c-a.b-c
 512  0: *.c-a.b-c
 513  1: -a
 514  2: .b-c
 515  3: -c
 516     *** Failers
 517 No match
 518     *.0
 519 No match
 520     *.a-
 521 No match
 522     *.a-b.c-
 523 No match
 524     *.c-a.0-c
 525 No match
 526
 527 /^(?=ab(de))(abd)(e)/
 528     abde
 529  0: abde
 530  1: de
 531  2: abd
 532  3: e
 533
 534 /^(?!(ab)de|x)(abd)(f)/
 535     abdf
 536  0: abdf
 537  1: <unset>
 538  2: abd
 539  3: f
 540
 541 /^(?=(ab(cd)))(ab)/
 542     abcd
 543  0: ab
 544  1: abcd
 545  2: cd
 546  3: ab
 547
 548 /^[\da-f](\.[\da-f])*$/i
 549     a.b.c.d
 550  0: a.b.c.d
 551  1: .d
 552     A.B.C.D
 553  0: A.B.C.D
 554  1: .D
 555     a.b.c.1.2.3.C
 556  0: a.b.c.1.2.3.C
 557  1: .C
 558
 559 /^\".*\"\s*(;.*)?$/
 560     \"1234\"
 561  0: "1234"
 562     \"abcd\" ;
 563  0: "abcd" ;
 564  1: ;
 565     \"\" ; rhubarb
 566  0: "" ; rhubarb
 567  1: ; rhubarb
 568     *** Failers
 569 No match
 570     \"1234\" : things
 571 No match
 572
 573 /^$/
 574     \
 575  0:
 576     *** Failers
 577 No match
 578
 579 /   ^    a   (?# begins with a)  b\sc (?# then b c) $ (?# then end)/x
 580     ab c
 581  0: ab c
 582     *** Failers
 583 No match
 584     abc
 585 No match
 586     ab cde
 587 No match
 588
 589 /(?x)   ^    a   (?# begins with a)  b\sc (?# then b c) $ (?# then end)/
 590     ab c
 591  0: ab c
 592     *** Failers
 593 No match
 594     abc
 595 No match
 596     ab cde
 597 No match
 598
 599 /^   a\ b[c ]d       $/x
 600     a bcd
 601  0: a bcd
 602     a b d
 603  0: a b d
 604     *** Failers
 605 No match
 606     abcd
 607 No match
 608     ab d
 609 No match
 610
 611 /^(a(b(c)))(d(e(f)))(h(i(j)))(k(l(m)))$/
 612     abcdefhijklm
 613  0: abcdefhijklm
 614  1: abc
 615  2: bc
 616  3: c
 617  4: def
 618  5: ef
 619  6: f
 620  7: hij
 621  8: ij
 622  9: j
 623 10: klm
 624 11: lm
 625 12: m
 626
 627 /^(?:a(b(c)))(?:d(e(f)))(?:h(i(j)))(?:k(l(m)))$/
 628     abcdefhijklm
 629  0: abcdefhijklm
 630  1: bc
 631  2: c
 632  3: ef
 633  4: f
 634  5: ij
 635  6: j
 636  7: lm
 637  8: m
 638
 639 /^[\w][\W][\s][\S][\d][\D][\b][\n][\c]][\022]/
 640     a+ Z0+\x08\n\x1d\x12
 641  0: a+ Z0+\x08\x0a\x1d\x12
 642
 643 /^[.^$|()*+?{,}]+/
 644     .^\$(*+)|{?,?}
 645  0: .^$(*+)|{?,?}
 646
 647 /^a*\w/
 648     z
 649  0: z
 650     az
 651  0: az
 652     aaaz
 653  0: aaaz
 654     a
 655  0: a
 656     aa
 657  0: aa
 658     aaaa
 659  0: aaaa
 660     a+
 661  0: a
 662     aa+
 663  0: aa
 664
 665 /^a*?\w/
 666     z
 667  0: z
 668     az
 669  0: a
 670     aaaz
 671  0: a
 672     a
 673  0: a
 674     aa
 675  0: a
 676     aaaa
 677  0: a
 678     a+
 679  0: a
 680     aa+
 681  0: a
 682
 683 /^a+\w/
 684     az
 685  0: az
 686     aaaz
 687  0: aaaz
 688     aa
 689  0: aa
 690     aaaa
 691  0: aaaa
 692     aa+
 693  0: aa
 694
 695 /^a+?\w/
 696     az
 697  0: az
 698     aaaz
 699  0: aa
 700     aa
 701  0: aa
 702     aaaa
 703  0: aa
 704     aa+
 705  0: aa
 706
 707 /^\d{8}\w{2,}/
 708     1234567890
 709  0: 1234567890
 710     12345678ab
 711  0: 12345678ab
 712     12345678__
 713  0: 12345678__
 714     *** Failers
 715 No match
 716     1234567
 717 No match
 718
 719 /^[aeiou\d]{4,5}$/
 720     uoie
 721  0: uoie
 722     1234
 723  0: 1234
 724     12345
 725  0: 12345
 726     aaaaa
 727  0: aaaaa
 728     *** Failers
 729 No match
 730     123456
 731 No match
 732
 733 /^[aeiou\d]{4,5}?/
 734     uoie
 735  0: uoie
 736     1234
 737  0: 1234
 738     12345
 739  0: 1234
 740     aaaaa
 741  0: aaaa
 742     123456
 743  0: 1234
 744
 745 /\A(abc|def)=(\1){2,3}\Z/
 746     abc=abcabc
 747  0: abc=abcabc
 748  1: abc
 749  2: abc
 750     def=defdefdef
 751  0: def=defdefdef
 752  1: def
 753  2: def
 754     *** Failers
 755 No match
 756     abc=defdef
 757 No match
 758
 759 /^(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\11*(\3\4)\1(?#)2$/
 760     abcdefghijkcda2
 761  0: abcdefghijkcda2
 762  1: a
 763  2: b
 764  3: c
 765  4: d
 766  5: e
 767  6: f
 768  7: g
 769  8: h
 770  9: i
 771 10: j
 772 11: k
 773 12: cd
 774     abcdefghijkkkkcda2
 775  0: abcdefghijkkkkcda2
 776  1: a
 777  2: b
 778  3: c
 779  4: d
 780  5: e
 781  6: f
 782  7: g
 783  8: h
 784  9: i
 785 10: j
 786 11: k
 787 12: cd
 788
 789 /(cat(a(ract|tonic)|erpillar)) \1()2(3)/
 790     cataract cataract23
 791  0: cataract cataract23
 792  1: cataract
 793  2: aract
 794  3: ract
 795  4:
 796  5: 3
 797     catatonic catatonic23
 798  0: catatonic catatonic23
 799  1: catatonic
 800  2: atonic
 801  3: tonic
 802  4:
 803  5: 3
 804     caterpillar caterpillar23
 805  0: caterpillar caterpillar23
 806  1: caterpillar
 807  2: erpillar
 808  3: <unset>
 809  4:
 810  5: 3
 811
 812
 813 /^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]/
 814     From abcd  Mon Sep 01 12:33:02 1997
 815  0: From abcd  Mon Sep 01 12:33
 816  1: abcd
 817
 818 /^From\s+\S+\s+([a-zA-Z]{3}\s+){2}\d{1,2}\s+\d\d:\d\d/
 819     From abcd  Mon Sep 01 12:33:02 1997
 820  0: From abcd  Mon Sep 01 12:33
 821  1: Sep
 822     From abcd  Mon Sep  1 12:33:02 1997
 823  0: From abcd  Mon Sep  1 12:33
 824  1: Sep
 825     *** Failers
 826 No match
 827     From abcd  Sep 01 12:33:02 1997
 828 No match
 829
 830 /^12.34/s
 831     12\n34
 832  0: 12\x0a34
 833     12\r34
 834  0: 12\x0d34
 835
 836 /\w+(?=\t)/
 837     the quick brown\t fox
 838  0: brown
 839
 840 /foo(?!bar)(.*)/
 841     foobar is foolish see?
 842  0: foolish see?
 843  1: lish see?
 844
 845 /(?:(?!foo)...|^.{0,2})bar(.*)/
 846     foobar crowbar etc
 847  0: rowbar etc
 848  1:  etc
 849     barrel
 850  0: barrel
 851  1: rel
 852     2barrel
 853  0: 2barrel
 854  1: rel
 855     A barrel
 856  0: A barrel
 857  1: rel
 858
 859 /^(\D*)(?=\d)(?!123)/
 860     abc456
 861  0: abc
 862  1: abc
 863     *** Failers
 864 No match
 865     abc123
 866 No match
 867
 868 /^1234(?# test newlines
 869   inside)/
 870     1234
 871  0: 1234
 872
 873 /^1234 #comment in extended re
 874   /x
 875     1234
 876  0: 1234
 877
 878 /#rhubarb
 879   abcd/x
 880     abcd
 881  0: abcd
 882
 883 /^abcd#rhubarb/x
 884     abcd
 885  0: abcd
 886
 887 /^(a)\1{2,3}(.)/
 888     aaab
 889  0: aaab
 890  1: a
 891  2: b
 892     aaaab
 893  0: aaaab
 894  1: a
 895  2: b
 896     aaaaab
 897  0: aaaaa
 898  1: a
 899  2: a
 900     aaaaaab
 901  0: aaaaa
 902  1: a
 903  2: a
 904
 905 /(?!^)abc/
 906     the abc
 907  0: abc
 908     *** Failers
 909 No match
 910     abc
 911 No match
 912
 913 /(?=^)abc/
 914     abc
 915  0: abc
 916     *** Failers
 917 No match
 918     the abc
 919 No match
 920
 921 /^[ab]{1,3}(ab*|b)/
 922     aabbbbb
 923  0: aabb
 924  1: b
 925
 926 /^[ab]{1,3}?(ab*|b)/
 927     aabbbbb
 928  0: aabbbbb
 929  1: abbbbb
 930
 931 /^[ab]{1,3}?(ab*?|b)/
 932     aabbbbb
 933  0: aa
 934  1: a
 935
 936 /^[ab]{1,3}(ab*?|b)/
 937     aabbbbb
 938  0: aabb
 939  1: b
 940
 941 /  (?: [\040\t] |  \(
 942 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 943 \)  )*                          # optional leading comment
 944 (?:    (?:
 945 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 946 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 947 |
 948 " (?:                      # opening quote...
 949 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
 950 |                     #    or
 951 \\ [^\x80-\xff]           #   Escaped something (something != CR)
 952 )* "  # closing quote
 953 )                    # initial word
 954 (?:  (?: [\040\t] |  \(
 955 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 956 \)  )*  \.  (?: [\040\t] |  \(
 957 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 958 \)  )*   (?:
 959 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 960 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 961 |
 962 " (?:                      # opening quote...
 963 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
 964 |                     #    or
 965 \\ [^\x80-\xff]           #   Escaped something (something != CR)
 966 )* "  # closing quote
 967 )  )* # further okay, if led by a period
 968 (?: [\040\t] |  \(
 969 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 970 \)  )*  @  (?: [\040\t] |  \(
 971 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 972 \)  )*    (?:
 973 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 974 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 975 |   \[                         # [
 976 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 977 \]                        #           ]
 978 )                           # initial subdomain
 979 (?:                                  #
 980 (?: [\040\t] |  \(
 981 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 982 \)  )*  \.                        # if led by a period...
 983 (?: [\040\t] |  \(
 984 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
 985 \)  )*   (?:
 986 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 987 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 988 |   \[                         # [
 989 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
 990 \]                        #           ]
 991 )                     #   ...further okay
 992 )*
 993 # address
 994 |                     #  or
 995 (?:
 996 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
 997 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
 998 |
 999 " (?:                      # opening quote...
1000 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
1001 |                     #    or
1002 \\ [^\x80-\xff]           #   Escaped something (something != CR)
1003 )* "  # closing quote
1004 )             # one word, optionally followed by....
1005 (?:
1006 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037]  |  # atom and space parts, or...
1007 \(
1008 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1009 \)       |  # comments, or...
1010
1011 " (?:                      # opening quote...
1012 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
1013 |                     #    or
1014 \\ [^\x80-\xff]           #   Escaped something (something != CR)
1015 )* "  # closing quote
1016 # quoted strings
1017 )*
1018 <  (?: [\040\t] |  \(
1019 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1020 \)  )*                     # leading <
1021 (?:  @  (?: [\040\t] |  \(
1022 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1023 \)  )*    (?:
1024 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1025 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1026 |   \[                         # [
1027 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
1028 \]                        #           ]
1029 )                           # initial subdomain
1030 (?:                                  #
1031 (?: [\040\t] |  \(
1032 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1033 \)  )*  \.                        # if led by a period...
1034 (?: [\040\t] |  \(
1035 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1036 \)  )*   (?:
1037 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1038 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1039 |   \[                         # [
1040 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
1041 \]                        #           ]
1042 )                     #   ...further okay
1043 )*
1044
1045 (?:  (?: [\040\t] |  \(
1046 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1047 \)  )*  ,  (?: [\040\t] |  \(
1048 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1049 \)  )*  @  (?: [\040\t] |  \(
1050 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1051 \)  )*    (?:
1052 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1053 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1054 |   \[                         # [
1055 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
1056 \]                        #           ]
1057 )                           # initial subdomain
1058 (?:                                  #
1059 (?: [\040\t] |  \(
1060 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1061 \)  )*  \.                        # if led by a period...
1062 (?: [\040\t] |  \(
1063 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1064 \)  )*   (?:
1065 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1066 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1067 |   \[                         # [
1068 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
1069 \]                        #           ]
1070 )                     #   ...further okay
1071 )*
1072 )* # further okay, if led by comma
1073 :                                # closing colon
1074 (?: [\040\t] |  \(
1075 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1076 \)  )*  )? #       optional route
1077 (?:
1078 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1079 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1080 |
1081 " (?:                      # opening quote...
1082 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
1083 |                     #    or
1084 \\ [^\x80-\xff]           #   Escaped something (something != CR)
1085 )* "  # closing quote
1086 )                    # initial word
1087 (?:  (?: [\040\t] |  \(
1088 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1089 \)  )*  \.  (?: [\040\t] |  \(
1090 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1091 \)  )*   (?:
1092 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1093 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1094 |
1095 " (?:                      # opening quote...
1096 [^\\\x80-\xff\n\015"]                #   Anything except backslash and quote
1097 |                     #    or
1098 \\ [^\x80-\xff]           #   Escaped something (something != CR)
1099 )* "  # closing quote
1100 )  )* # further okay, if led by a period
1101 (?: [\040\t] |  \(
1102 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1103 \)  )*  @  (?: [\040\t] |  \(
1104 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1105 \)  )*    (?:
1106 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1107 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1108 |   \[                         # [
1109 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
1110 \]                        #           ]
1111 )                           # initial subdomain
1112 (?:                                  #
1113 (?: [\040\t] |  \(
1114 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1115 \)  )*  \.                        # if led by a period...
1116 (?: [\040\t] |  \(
1117 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1118 \)  )*   (?:
1119 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1120 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1121 |   \[                         # [
1122 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*    #    stuff
1123 \]                        #           ]
1124 )                     #   ...further okay
1125 )*
1126 #       address spec
1127 (?: [\040\t] |  \(
1128 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1129 \)  )*  > #                  trailing >
1130 # name and address
1131 )  (?: [\040\t] |  \(
1132 (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  |  \( (?:  [^\\\x80-\xff\n\015()]  |  \\ [^\x80-\xff]  )* \)  )*
1133 \)  )*                       # optional trailing comment
1134 /x
1135     Alan Other <user\@dom.ain>
1136  0: Alan Other <user@dom.ain>
1137     <user\@dom.ain>
1138  0: user@dom.ain
1139     user\@dom.ain
1140  0: user@dom.ain
1141     \"A. Other\" <user.1234\@dom.ain> (a comment)
1142  0: "A. Other" <user.1234@dom.ain> (a comment)
1143     A. Other <user.1234\@dom.ain> (a comment)
1144  0:  Other <user.1234@dom.ain> (a comment)
1145     \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay
1146  0: "/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/"@x400-re.lay
1147     A missing angle <user\@some.where
1148  0: user@some.where
1149     *** Failers
1150 No match
1151     The quick brown fox
1152 No match
1153
1154 /[\040\t]*                    # Nab whitespace.
1155 (?:
1156 \(                              #  (
1157 [^\\\x80-\xff\n\015()] *                             #     normal*
1158 (?:                                 #       (
1159 (?:  \\ [^\x80-\xff]  |
1160 \(                            #  (
1161 [^\\\x80-\xff\n\015()] *                            #     normal*
1162 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1163 \)                           #                       )
1164 )    #         special
1165 [^\\\x80-\xff\n\015()] *                         #         normal*
1166 )*                                  #            )*
1167 \)                             #                )
1168 [\040\t]* )*    # If comment found, allow more spaces.
1169 # optional leading comment
1170 (?:
1171 (?:
1172 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1173 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1174 # Atom
1175 |                       #  or
1176 "                                     # "
1177 [^\\\x80-\xff\n\015"] *                            #   normal
1178 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
1179 "                                     #        "
1180 # Quoted string
1181 )
1182 [\040\t]*                    # Nab whitespace.
1183 (?:
1184 \(                              #  (
1185 [^\\\x80-\xff\n\015()] *                             #     normal*
1186 (?:                                 #       (
1187 (?:  \\ [^\x80-\xff]  |
1188 \(                            #  (
1189 [^\\\x80-\xff\n\015()] *                            #     normal*
1190 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1191 \)                           #                       )
1192 )    #         special
1193 [^\\\x80-\xff\n\015()] *                         #         normal*
1194 )*                                  #            )*
1195 \)                             #                )
1196 [\040\t]* )*    # If comment found, allow more spaces.
1197 (?:
1198 \.
1199 [\040\t]*                    # Nab whitespace.
1200 (?:
1201 \(                              #  (
1202 [^\\\x80-\xff\n\015()] *                             #     normal*
1203 (?:                                 #       (
1204 (?:  \\ [^\x80-\xff]  |
1205 \(                            #  (
1206 [^\\\x80-\xff\n\015()] *                            #     normal*
1207 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1208 \)                           #                       )
1209 )    #         special
1210 [^\\\x80-\xff\n\015()] *                         #         normal*
1211 )*                                  #            )*
1212 \)                             #                )
1213 [\040\t]* )*    # If comment found, allow more spaces.
1214 (?:
1215 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1216 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1217 # Atom
1218 |                       #  or
1219 "                                     # "
1220 [^\\\x80-\xff\n\015"] *                            #   normal
1221 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
1222 "                                     #        "
1223 # Quoted string
1224 )
1225 [\040\t]*                    # Nab whitespace.
1226 (?:
1227 \(                              #  (
1228 [^\\\x80-\xff\n\015()] *                             #     normal*
1229 (?:                                 #       (
1230 (?:  \\ [^\x80-\xff]  |
1231 \(                            #  (
1232 [^\\\x80-\xff\n\015()] *                            #     normal*
1233 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1234 \)                           #                       )
1235 )    #         special
1236 [^\\\x80-\xff\n\015()] *                         #         normal*
1237 )*                                  #            )*
1238 \)                             #                )
1239 [\040\t]* )*    # If comment found, allow more spaces.
1240 # additional words
1241 )*
1242 @
1243 [\040\t]*                    # Nab whitespace.
1244 (?:
1245 \(                              #  (
1246 [^\\\x80-\xff\n\015()] *                             #     normal*
1247 (?:                                 #       (
1248 (?:  \\ [^\x80-\xff]  |
1249 \(                            #  (
1250 [^\\\x80-\xff\n\015()] *                            #     normal*
1251 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1252 \)                           #                       )
1253 )    #         special
1254 [^\\\x80-\xff\n\015()] *                         #         normal*
1255 )*                                  #            )*
1256 \)                             #                )
1257 [\040\t]* )*    # If comment found, allow more spaces.
1258 (?:
1259 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1260 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1261 |
1262 \[                            # [
1263 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1264 \]                           #           ]
1265 )
1266 [\040\t]*                    # Nab whitespace.
1267 (?:
1268 \(                              #  (
1269 [^\\\x80-\xff\n\015()] *                             #     normal*
1270 (?:                                 #       (
1271 (?:  \\ [^\x80-\xff]  |
1272 \(                            #  (
1273 [^\\\x80-\xff\n\015()] *                            #     normal*
1274 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1275 \)                           #                       )
1276 )    #         special
1277 [^\\\x80-\xff\n\015()] *                         #         normal*
1278 )*                                  #            )*
1279 \)                             #                )
1280 [\040\t]* )*    # If comment found, allow more spaces.
1281 # optional trailing comments
1282 (?:
1283 \.
1284 [\040\t]*                    # Nab whitespace.
1285 (?:
1286 \(                              #  (
1287 [^\\\x80-\xff\n\015()] *                             #     normal*
1288 (?:                                 #       (
1289 (?:  \\ [^\x80-\xff]  |
1290 \(                            #  (
1291 [^\\\x80-\xff\n\015()] *                            #     normal*
1292 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1293 \)                           #                       )
1294 )    #         special
1295 [^\\\x80-\xff\n\015()] *                         #         normal*
1296 )*                                  #            )*
1297 \)                             #                )
1298 [\040\t]* )*    # If comment found, allow more spaces.
1299 (?:
1300 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1301 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1302 |
1303 \[                            # [
1304 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1305 \]                           #           ]
1306 )
1307 [\040\t]*                    # Nab whitespace.
1308 (?:
1309 \(                              #  (
1310 [^\\\x80-\xff\n\015()] *                             #     normal*
1311 (?:                                 #       (
1312 (?:  \\ [^\x80-\xff]  |
1313 \(                            #  (
1314 [^\\\x80-\xff\n\015()] *                            #     normal*
1315 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1316 \)                           #                       )
1317 )    #         special
1318 [^\\\x80-\xff\n\015()] *                         #         normal*
1319 )*                                  #            )*
1320 \)                             #                )
1321 [\040\t]* )*    # If comment found, allow more spaces.
1322 # optional trailing comments
1323 )*
1324 # address
1325 |                             #  or
1326 (?:
1327 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1328 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1329 # Atom
1330 |                       #  or
1331 "                                     # "
1332 [^\\\x80-\xff\n\015"] *                            #   normal
1333 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
1334 "                                     #        "
1335 # Quoted string
1336 )
1337 # leading word
1338 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] *               # "normal" atoms and or spaces
1339 (?:
1340 (?:
1341 \(                              #  (
1342 [^\\\x80-\xff\n\015()] *                             #     normal*
1343 (?:                                 #       (
1344 (?:  \\ [^\x80-\xff]  |
1345 \(                            #  (
1346 [^\\\x80-\xff\n\015()] *                            #     normal*
1347 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1348 \)                           #                       )
1349 )    #         special
1350 [^\\\x80-\xff\n\015()] *                         #         normal*
1351 )*                                  #            )*
1352 \)                             #                )
1353 |
1354 "                                     # "
1355 [^\\\x80-\xff\n\015"] *                            #   normal
1356 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
1357 "                                     #        "
1358 ) # "special" comment or quoted string
1359 [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] *            #  more "normal"
1360 )*
1361 <
1362 [\040\t]*                    # Nab whitespace.
1363 (?:
1364 \(                              #  (
1365 [^\\\x80-\xff\n\015()] *                             #     normal*
1366 (?:                                 #       (
1367 (?:  \\ [^\x80-\xff]  |
1368 \(                            #  (
1369 [^\\\x80-\xff\n\015()] *                            #     normal*
1370 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1371 \)                           #                       )
1372 )    #         special
1373 [^\\\x80-\xff\n\015()] *                         #         normal*
1374 )*                                  #            )*
1375 \)                             #                )
1376 [\040\t]* )*    # If comment found, allow more spaces.
1377 # <
1378 (?:
1379 @
1380 [\040\t]*                    # Nab whitespace.
1381 (?:
1382 \(                              #  (
1383 [^\\\x80-\xff\n\015()] *                             #     normal*
1384 (?:                                 #       (
1385 (?:  \\ [^\x80-\xff]  |
1386 \(                            #  (
1387 [^\\\x80-\xff\n\015()] *                            #     normal*
1388 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1389 \)                           #                       )
1390 )    #         special
1391 [^\\\x80-\xff\n\015()] *                         #         normal*
1392 )*                                  #            )*
1393 \)                             #                )
1394 [\040\t]* )*    # If comment found, allow more spaces.
1395 (?:
1396 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1397 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1398 |
1399 \[                            # [
1400 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1401 \]                           #           ]
1402 )
1403 [\040\t]*                    # Nab whitespace.
1404 (?:
1405 \(                              #  (
1406 [^\\\x80-\xff\n\015()] *                             #     normal*
1407 (?:                                 #       (
1408 (?:  \\ [^\x80-\xff]  |
1409 \(                            #  (
1410 [^\\\x80-\xff\n\015()] *                            #     normal*
1411 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1412 \)                           #                       )
1413 )    #         special
1414 [^\\\x80-\xff\n\015()] *                         #         normal*
1415 )*                                  #            )*
1416 \)                             #                )
1417 [\040\t]* )*    # If comment found, allow more spaces.
1418 # optional trailing comments
1419 (?:
1420 \.
1421 [\040\t]*                    # Nab whitespace.
1422 (?:
1423 \(                              #  (
1424 [^\\\x80-\xff\n\015()] *                             #     normal*
1425 (?:                                 #       (
1426 (?:  \\ [^\x80-\xff]  |
1427 \(                            #  (
1428 [^\\\x80-\xff\n\015()] *                            #     normal*
1429 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1430 \)                           #                       )
1431 )    #         special
1432 [^\\\x80-\xff\n\015()] *                         #         normal*
1433 )*                                  #            )*
1434 \)                             #                )
1435 [\040\t]* )*    # If comment found, allow more spaces.
1436 (?:
1437 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1438 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1439 |
1440 \[                            # [
1441 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1442 \]                           #           ]
1443 )
1444 [\040\t]*                    # Nab whitespace.
1445 (?:
1446 \(                              #  (
1447 [^\\\x80-\xff\n\015()] *                             #     normal*
1448 (?:                                 #       (
1449 (?:  \\ [^\x80-\xff]  |
1450 \(                            #  (
1451 [^\\\x80-\xff\n\015()] *                            #     normal*
1452 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1453 \)                           #                       )
1454 )    #         special
1455 [^\\\x80-\xff\n\015()] *                         #         normal*
1456 )*                                  #            )*
1457 \)                             #                )
1458 [\040\t]* )*    # If comment found, allow more spaces.
1459 # optional trailing comments
1460 )*
1461 (?: ,
1462 [\040\t]*                    # Nab whitespace.
1463 (?:
1464 \(                              #  (
1465 [^\\\x80-\xff\n\015()] *                             #     normal*
1466 (?:                                 #       (
1467 (?:  \\ [^\x80-\xff]  |
1468 \(                            #  (
1469 [^\\\x80-\xff\n\015()] *                            #     normal*
1470 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1471 \)                           #                       )
1472 )    #         special
1473 [^\\\x80-\xff\n\015()] *                         #         normal*
1474 )*                                  #            )*
1475 \)                             #                )
1476 [\040\t]* )*    # If comment found, allow more spaces.
1477 @
1478 [\040\t]*                    # Nab whitespace.
1479 (?:
1480 \(                              #  (
1481 [^\\\x80-\xff\n\015()] *                             #     normal*
1482 (?:                                 #       (
1483 (?:  \\ [^\x80-\xff]  |
1484 \(                            #  (
1485 [^\\\x80-\xff\n\015()] *                            #     normal*
1486 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1487 \)                           #                       )
1488 )    #         special
1489 [^\\\x80-\xff\n\015()] *                         #         normal*
1490 )*                                  #            )*
1491 \)                             #                )
1492 [\040\t]* )*    # If comment found, allow more spaces.
1493 (?:
1494 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1495 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1496 |
1497 \[                            # [
1498 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1499 \]                           #           ]
1500 )
1501 [\040\t]*                    # Nab whitespace.
1502 (?:
1503 \(                              #  (
1504 [^\\\x80-\xff\n\015()] *                             #     normal*
1505 (?:                                 #       (
1506 (?:  \\ [^\x80-\xff]  |
1507 \(                            #  (
1508 [^\\\x80-\xff\n\015()] *                            #     normal*
1509 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1510 \)                           #                       )
1511 )    #         special
1512 [^\\\x80-\xff\n\015()] *                         #         normal*
1513 )*                                  #            )*
1514 \)                             #                )
1515 [\040\t]* )*    # If comment found, allow more spaces.
1516 # optional trailing comments
1517 (?:
1518 \.
1519 [\040\t]*                    # Nab whitespace.
1520 (?:
1521 \(                              #  (
1522 [^\\\x80-\xff\n\015()] *                             #     normal*
1523 (?:                                 #       (
1524 (?:  \\ [^\x80-\xff]  |
1525 \(                            #  (
1526 [^\\\x80-\xff\n\015()] *                            #     normal*
1527 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1528 \)                           #                       )
1529 )    #         special
1530 [^\\\x80-\xff\n\015()] *                         #         normal*
1531 )*                                  #            )*
1532 \)                             #                )
1533 [\040\t]* )*    # If comment found, allow more spaces.
1534 (?:
1535 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1536 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1537 |
1538 \[                            # [
1539 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1540 \]                           #           ]
1541 )
1542 [\040\t]*                    # Nab whitespace.
1543 (?:
1544 \(                              #  (
1545 [^\\\x80-\xff\n\015()] *                             #     normal*
1546 (?:                                 #       (
1547 (?:  \\ [^\x80-\xff]  |
1548 \(                            #  (
1549 [^\\\x80-\xff\n\015()] *                            #     normal*
1550 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1551 \)                           #                       )
1552 )    #         special
1553 [^\\\x80-\xff\n\015()] *                         #         normal*
1554 )*                                  #            )*
1555 \)                             #                )
1556 [\040\t]* )*    # If comment found, allow more spaces.
1557 # optional trailing comments
1558 )*
1559 )*  # additional domains
1560 :
1561 [\040\t]*                    # Nab whitespace.
1562 (?:
1563 \(                              #  (
1564 [^\\\x80-\xff\n\015()] *                             #     normal*
1565 (?:                                 #       (
1566 (?:  \\ [^\x80-\xff]  |
1567 \(                            #  (
1568 [^\\\x80-\xff\n\015()] *                            #     normal*
1569 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1570 \)                           #                       )
1571 )    #         special
1572 [^\\\x80-\xff\n\015()] *                         #         normal*
1573 )*                                  #            )*
1574 \)                             #                )
1575 [\040\t]* )*    # If comment found, allow more spaces.
1576 # optional trailing comments
1577 )?     #       optional route
1578 (?:
1579 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1580 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1581 # Atom
1582 |                       #  or
1583 "                                     # "
1584 [^\\\x80-\xff\n\015"] *                            #   normal
1585 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
1586 "                                     #        "
1587 # Quoted string
1588 )
1589 [\040\t]*                    # Nab whitespace.
1590 (?:
1591 \(                              #  (
1592 [^\\\x80-\xff\n\015()] *                             #     normal*
1593 (?:                                 #       (
1594 (?:  \\ [^\x80-\xff]  |
1595 \(                            #  (
1596 [^\\\x80-\xff\n\015()] *                            #     normal*
1597 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1598 \)                           #                       )
1599 )    #         special
1600 [^\\\x80-\xff\n\015()] *                         #         normal*
1601 )*                                  #            )*
1602 \)                             #                )
1603 [\040\t]* )*    # If comment found, allow more spaces.
1604 (?:
1605 \.
1606 [\040\t]*                    # Nab whitespace.
1607 (?:
1608 \(                              #  (
1609 [^\\\x80-\xff\n\015()] *                             #     normal*
1610 (?:                                 #       (
1611 (?:  \\ [^\x80-\xff]  |
1612 \(                            #  (
1613 [^\\\x80-\xff\n\015()] *                            #     normal*
1614 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1615 \)                           #                       )
1616 )    #         special
1617 [^\\\x80-\xff\n\015()] *                         #         normal*
1618 )*                                  #            )*
1619 \)                             #                )
1620 [\040\t]* )*    # If comment found, allow more spaces.
1621 (?:
1622 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1623 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1624 # Atom
1625 |                       #  or
1626 "                                     # "
1627 [^\\\x80-\xff\n\015"] *                            #   normal
1628 (?:  \\ [^\x80-\xff]  [^\\\x80-\xff\n\015"] * )*        #   ( special normal* )*
1629 "                                     #        "
1630 # Quoted string
1631 )
1632 [\040\t]*                    # Nab whitespace.
1633 (?:
1634 \(                              #  (
1635 [^\\\x80-\xff\n\015()] *                             #     normal*
1636 (?:                                 #       (
1637 (?:  \\ [^\x80-\xff]  |
1638 \(                            #  (
1639 [^\\\x80-\xff\n\015()] *                            #     normal*
1640 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1641 \)                           #                       )
1642 )    #         special
1643 [^\\\x80-\xff\n\015()] *                         #         normal*
1644 )*                                  #            )*
1645 \)                             #                )
1646 [\040\t]* )*    # If comment found, allow more spaces.
1647 # additional words
1648 )*
1649 @
1650 [\040\t]*                    # Nab whitespace.
1651 (?:
1652 \(                              #  (
1653 [^\\\x80-\xff\n\015()] *                             #     normal*
1654 (?:                                 #       (
1655 (?:  \\ [^\x80-\xff]  |
1656 \(                            #  (
1657 [^\\\x80-\xff\n\015()] *                            #     normal*
1658 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1659 \)                           #                       )
1660 )    #         special
1661 [^\\\x80-\xff\n\015()] *                         #         normal*
1662 )*                                  #            )*
1663 \)                             #                )
1664 [\040\t]* )*    # If comment found, allow more spaces.
1665 (?:
1666 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1667 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1668 |
1669 \[                            # [
1670 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1671 \]                           #           ]
1672 )
1673 [\040\t]*                    # Nab whitespace.
1674 (?:
1675 \(                              #  (
1676 [^\\\x80-\xff\n\015()] *                             #     normal*
1677 (?:                                 #       (
1678 (?:  \\ [^\x80-\xff]  |
1679 \(                            #  (
1680 [^\\\x80-\xff\n\015()] *                            #     normal*
1681 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1682 \)                           #                       )
1683 )    #         special
1684 [^\\\x80-\xff\n\015()] *                         #         normal*
1685 )*                                  #            )*
1686 \)                             #                )
1687 [\040\t]* )*    # If comment found, allow more spaces.
1688 # optional trailing comments
1689 (?:
1690 \.
1691 [\040\t]*                    # Nab whitespace.
1692 (?:
1693 \(                              #  (
1694 [^\\\x80-\xff\n\015()] *                             #     normal*
1695 (?:                                 #       (
1696 (?:  \\ [^\x80-\xff]  |
1697 \(                            #  (
1698 [^\\\x80-\xff\n\015()] *                            #     normal*
1699 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1700 \)                           #                       )
1701 )    #         special
1702 [^\\\x80-\xff\n\015()] *                         #         normal*
1703 )*                                  #            )*
1704 \)                             #                )
1705 [\040\t]* )*    # If comment found, allow more spaces.
1706 (?:
1707 [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+    # some number of atom characters...
1708 (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom
1709 |
1710 \[                            # [
1711 (?: [^\\\x80-\xff\n\015\[\]] |  \\ [^\x80-\xff]  )*     #    stuff
1712 \]                           #           ]
1713 )
1714 [\040\t]*                    # Nab whitespace.
1715 (?:
1716 \(                              #  (
1717 [^\\\x80-\xff\n\015()] *                             #     normal*
1718 (?:                                 #       (
1719 (?:  \\ [^\x80-\xff]  |
1720 \(                            #  (
1721 [^\\\x80-\xff\n\015()] *                            #     normal*
1722 (?:  \\ [^\x80-\xff]   [^\\\x80-\xff\n\015()] * )*        #     (special normal*)*
1723 \)                           #                       )
1724 )    #         special
1725 [^\\\x80-\xff\n\015()] *                         #         normal*
1726 )*                                  #            )*
1727 \)                             #                )
1728 [\040\t]* )*    # If comment found, allow more spaces.
1729 # optional trailing comments
1730 )*
1731 #       address spec
1732 >                    #                 >
1733 # name and address
1734 )
1735 /x
1736     Alan Other <user\@dom.ain>
1737  0: Alan Other <user@dom.ain>
1738     <user\@dom.ain>
1739  0: user@dom.ain
1740     user\@dom.ain
1741  0: user@dom.ain
1742     \"A. Other\" <user.1234\@dom.ain> (a comment)
1743  0: "A. Other" <user.1234@dom.ain>
1744     A. Other <user.1234\@dom.ain> (a comment)
1745  0:  Other <user.1234@dom.ain>
1746     \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay
1747  0: "/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/"@x400-re.lay
1748     A missing angle <user\@some.where
1749  0: user@some.where
1750     *** Failers
1751 No match
1752     The quick brown fox
1753 No match
1754
1755 /abc\0def\00pqr\000xyz\0000AB/
1756     abc\0def\00pqr\000xyz\0000AB
1757  0: abc\x00def\x00pqr\x00xyz\x000AB
1758     abc456 abc\0def\00pqr\000xyz\0000ABCDE
1759  0: abc\x00def\x00pqr\x00xyz\x000AB
1760
1761 /abc\x0def\x00pqr\x000xyz\x0000AB/
1762     abc\x0def\x00pqr\x000xyz\x0000AB
1763  0: abc\x0def\x00pqr\x000xyz\x0000AB
1764     abc456 abc\x0def\x00pqr\x000xyz\x0000ABCDE
1765  0: abc\x0def\x00pqr\x000xyz\x0000AB
1766
1767 /^[\000-\037]/
1768     \0A
1769  0: \x00
1770     \01B
1771  0: \x01
1772     \037C
1773  0: \x1f
1774
1775 /\0*/
1776     \0\0\0\0
1777  0: \x00\x00\x00\x00
1778
1779 /A\x0{2,3}Z/
1780     The A\x0\x0Z
1781  0: A\x00\x00Z
1782     An A\0\x0\0Z
1783  0: A\x00\x00\x00Z
1784     *** Failers
1785 No match
1786     A\0Z
1787 No match
1788     A\0\x0\0\x0Z
1789 No match
1790
1791 /^(cow|)\1(bell)/
1792     cowcowbell
1793  0: cowcowbell
1794  1: cow
1795  2: bell
1796     bell
1797  0: bell
1798  1:
1799  2: bell
1800     *** Failers
1801 No match
1802     cowbell
1803 No match
1804
1805 /^\s/
1806     \040abc
1807  0:
1808     \x0cabc
1809  0: \x0c
1810     \nabc
1811  0: \x0a
1812     \rabc
1813  0: \x0d
1814     \tabc
1815  0: \x09
1816     *** Failers
1817 No match
1818     abc
1819 No match
1820
1821 /^a     b
1822   \r  \f  c/x
1823     abc
1824  0: abc
1825
1826 /^(a|)\1*b/
1827     ab
1828  0: ab
1829  1: a
1830     aaaab
1831  0: aaaab
1832  1: a
1833     b
1834  0: b
1835  1:
1836     *** Failers
1837 No match
1838     acb
1839 No match
1840
1841 /^(a|)\1+b/
1842     aab
1843  0: aab
1844  1: a
1845     aaaab
1846  0: aaaab
1847  1: a
1848     b
1849  0: b
1850  1:
1851     *** Failers
1852 No match
1853     ab
1854 No match
1855
1856 /^(a|)\1?b/
1857     ab
1858  0: ab
1859  1: a
1860     aab
1861  0: aab
1862  1: a
1863     b
1864  0: b
1865  1:
1866     *** Failers
1867 No match
1868     acb
1869 No match
1870
1871 /^(a|)\1{2}b/
1872     aaab
1873  0: aaab
1874  1: a
1875     b
1876  0: b
1877  1:
1878     *** Failers
1879 No match
1880     ab
1881 No match
1882     aab
1883 No match
1884     aaaab
1885 No match
1886
1887 /^(a|)\1{2,3}b/
1888     aaab
1889  0: aaab
1890  1: a
1891     aaaab
1892  0: aaaab
1893  1: a
1894     b
1895  0: b
1896  1:
1897     *** Failers
1898 No match
1899     ab
1900 No match
1901     aab
1902 No match
1903     aaaaab
1904 No match
1905
1906 /ab{1,3}bc/
1907     abbbbc
1908  0: abbbbc
1909     abbbc
1910  0: abbbc
1911     abbc
1912  0: abbc
1913     *** Failers
1914 No match
1915     abc
1916 No match
1917     abbbbbc
1918 No match
1919
1920 /([^.]*)\.([^:]*):[T ]+(.*)/
1921     track1.title:TBlah blah blah
1922  0: track1.title:TBlah blah blah
1923  1: track1
1924  2: title
1925  3: Blah blah blah
1926
1927 /([^.]*)\.([^:]*):[T ]+(.*)/i
1928     track1.title:TBlah blah blah
1929  0: track1.title:TBlah blah blah
1930  1: track1
1931  2: title
1932  3: Blah blah blah
1933
1934 /([^.]*)\.([^:]*):[t ]+(.*)/i
1935     track1.title:TBlah blah blah
1936  0: track1.title:TBlah blah blah
1937  1: track1
1938  2: title
1939  3: Blah blah blah
1940
1941 /^[W-c]+$/
1942     WXY_^abc
1943  0: WXY_^abc
1944     ***Failers
1945 No match
1946     wxy
1947 No match
1948
1949 /^[W-c]+$/i
1950     WXY_^abc
1951  0: WXY_^abc
1952     wxy_^ABC
1953  0: wxy_^ABC
1954
1955 /^[\x3f-\x5F]+$/i
1956     WXY_^abc
1957  0: WXY_^abc
1958     wxy_^ABC
1959  0: wxy_^ABC
1960
1961 /^abc$/m
1962     abc
1963  0: abc
1964     qqq\nabc
1965  0: abc
1966     abc\nzzz
1967  0: abc
1968     qqq\nabc\nzzz
1969  0: abc
1970
1971 /^abc$/
1972     abc
1973  0: abc
1974     *** Failers
1975 No match
1976     qqq\nabc
1977 No match
1978     abc\nzzz
1979 No match
1980     qqq\nabc\nzzz
1981 No match
1982
1983 /\Aabc\Z/m
1984     abc
1985  0: abc
1986     abc\n
1987  0: abc
1988     *** Failers
1989 No match
1990     qqq\nabc
1991 No match
1992     abc\nzzz
1993 No match
1994     qqq\nabc\nzzz
1995 No match
1996
1997 /\A(.)*\Z/s
1998     abc\ndef
1999  0: abc\x0adef
2000  1: f
2001
2002 /\A(.)*\Z/m
2003     *** Failers
2004  0: *** Failers
2005  1: s
2006     abc\ndef
2007 No match
2008
2009 /(?:b)|(?::+)/
2010     b::c
2011  0: b
2012     c::b
2013  0: ::
2014
2015 /[-az]+/
2016     az-
2017  0: az-
2018     *** Failers
2019  0: a
2020     b
2021 No match
2022
2023 /[az-]+/
2024     za-
2025  0: za-
2026     *** Failers
2027  0: a
2028     b
2029 No match
2030
2031 /[a\-z]+/
2032     a-z
2033  0: a-z
2034     *** Failers
2035  0: a
2036     b
2037 No match
2038
2039 /[a-z]+/
2040     abcdxyz
2041  0: abcdxyz
2042
2043 /[\d-]+/
2044     12-34
2045  0: 12-34
2046     *** Failers
2047 No match
2048     aaa
2049 No match
2050
2051 /[\d-z]+/
2052     12-34z
2053  0: 12-34z
2054     *** Failers
2055 No match
2056     aaa
2057 No match
2058
2059 /\x5c/
2060     \\
2061  0: \
2062
2063 /\x20Z/
2064     the Zoo
2065  0:  Z
2066     *** Failers
2067 No match
2068     Zulu
2069 No match
2070
2071 /(abc)\1/i
2072     abcabc
2073  0: abcabc
2074  1: abc
2075     ABCabc
2076  0: ABCabc
2077  1: ABC
2078     abcABC
2079  0: abcABC
2080  1: abc
2081
2082 /ab{3cd/
2083     ab{3cd
2084  0: ab{3cd
2085
2086 /ab{3,cd/
2087     ab{3,cd
2088  0: ab{3,cd
2089
2090 /ab{3,4a}cd/
2091     ab{3,4a}cd
2092  0: ab{3,4a}cd
2093
2094 /{4,5a}bc/
2095     {4,5a}bc
2096  0: {4,5a}bc
2097
2098 /^a.b/
2099     a\rb
2100  0: a\x0db
2101     *** Failers
2102 No match
2103     a\nb
2104 No match
2105
2106 /abc$/
2107     abc
2108  0: abc
2109     abc\n
2110  0: abc
2111     *** Failers
2112 No match
2113     abc\ndef
2114 No match
2115
2116 /(abc)\123/
2117     abc\x53
2118  0: abcS
2119  1: abc
2120
2121 /(abc)\223/
2122     abc\x93
2123  0: abc\x93
2124  1: abc
2125
2126 /(abc)\323/
2127     abc\xd3
2128  0: abc\xd3
2129  1: abc
2130
2131 /(abc)\500/
2132     abc\x40
2133  0: abc@
2134  1: abc
2135     abc\100
2136  0: abc@
2137  1: abc
2138
2139 /(abc)\5000/
2140     abc\x400
2141  0: abc@0
2142  1: abc
2143     abc\x40\x30
2144  0: abc@0
2145  1: abc
2146     abc\1000
2147  0: abc@0
2148  1: abc
2149     abc\100\x30
2150  0: abc@0
2151  1: abc
2152     abc\100\060
2153  0: abc@0
2154  1: abc
2155     abc\100\60
2156  0: abc@0
2157  1: abc
2158
2159 /abc\81/
2160     abc\081
2161  0: abc\x0081
2162     abc\0\x38\x31
2163  0: abc\x0081
2164
2165 /abc\91/
2166     abc\091
2167  0: abc\x0091
2168     abc\0\x39\x31
2169  0: abc\x0091
2170
2171 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\12\123/
2172     abcdefghijkllS
2173  0: abcdefghijkllS
2174  1: a
2175  2: b
2176  3: c
2177  4: d
2178  5: e
2179  6: f
2180  7: g
2181  8: h
2182  9: i
2183 10: j
2184 11: k
2185 12: l
2186
2187 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\12\123/
2188     abcdefghijk\12S
2189  0: abcdefghijk\x0aS
2190  1: a
2191  2: b
2192  3: c
2193  4: d
2194  5: e
2195  6: f
2196  7: g
2197  8: h
2198  9: i
2199 10: j
2200 11: k
2201
2202 /ab\gdef/
2203     abgdef
2204  0: abgdef
2205
2206 /a{0}bc/
2207     bc
2208  0: bc
2209
2210 /(a|(bc)){0,0}?xyz/
2211     xyz
2212  0: xyz
2213
2214 /abc[\10]de/
2215     abc\010de
2216  0: abc\x08de
2217
2218 /abc[\1]de/
2219     abc\1de
2220  0: abc\x01de
2221
2222 /(abc)[\1]de/
2223     abc\1de
2224  0: abc\x01de
2225  1: abc
2226
2227 /a.b(?s)/
2228     a\nb
2229  0: a\x0ab
2230
2231 /^([^a])([^\b])([^c]*)([^d]{3,4})/
2232     baNOTccccd
2233  0: baNOTcccc
2234  1: b
2235  2: a
2236  3: NOT
2237  4: cccc
2238     baNOTcccd
2239  0: baNOTccc
2240  1: b
2241  2: a
2242  3: NOT
2243  4: ccc
2244     baNOTccd
2245  0: baNOTcc
2246  1: b
2247  2: a
2248  3: NO
2249  4: Tcc
2250     bacccd
2251  0: baccc
2252  1: b
2253  2: a
2254  3:
2255  4: ccc
2256     *** Failers
2257  0: *** Failers
2258  1: *
2259  2: *
2260  3: * Fail
2261  4: ers
2262     anything
2263 No match
2264     b\bc
2265 No match
2266     baccd
2267 No match
2268
2269 /[^a]/
2270     Abc
2271  0: A
2272
2273 /[^a]/i
2274     Abc
2275  0: b
2276
2277 /[^a]+/
2278     AAAaAbc
2279  0: AAA
2280
2281 /[^a]+/i
2282     AAAaAbc
2283  0: bc
2284
2285 /[^a]+/
2286     bbb\nccc
2287  0: bbb\x0accc
2288
2289 /[^k]$/
2290     abc
2291  0: c
2292     *** Failers
2293  0: s
2294     abk
2295 No match
2296
2297 /[^k]{2,3}$/
2298     abc
2299  0: abc
2300     kbc
2301  0: bc
2302     kabc
2303  0: abc
2304     *** Failers
2305  0: ers
2306     abk
2307 No match
2308     akb
2309 No match
2310     akk
2311 No match
2312
2313 /^\d{8,}\@.+[^k]$/
2314     12345678\@a.b.c.d
2315  0: 12345678@a.b.c.d
2316     123456789\@x.y.z
2317  0: 123456789@x.y.z
2318     *** Failers
2319 No match
2320     12345678\@x.y.uk
2321 No match
2322     1234567\@a.b.c.d
2323 No match
2324
2325 /(a)\1{8,}/
2326     aaaaaaaaa
2327  0: aaaaaaaaa
2328  1: a
2329     aaaaaaaaaa
2330  0: aaaaaaaaaa
2331  1: a
2332     *** Failers
2333 No match
2334     aaaaaaa
2335 No match
2336
2337 /[^a]/
2338     aaaabcd
2339  0: b
2340     aaAabcd
2341  0: A
2342
2343 /[^a]/i
2344     aaaabcd
2345  0: b
2346     aaAabcd
2347  0: b
2348
2349 /[^az]/
2350     aaaabcd
2351  0: b
2352     aaAabcd
2353  0: A
2354
2355 /[^az]/i
2356     aaaabcd
2357  0: b
2358     aaAabcd
2359  0: b
2360
2361 /\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/
2362  \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
2363  0: \x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff
2364
2365 /P[^*]TAIRE[^*]{1,6}?LL/
2366     xxxxxxxxxxxPSTAIREISLLxxxxxxxxx
2367  0: PSTAIREISLL
2368
2369 /P[^*]TAIRE[^*]{1,}?LL/
2370     xxxxxxxxxxxPSTAIREISLLxxxxxxxxx
2371  0: PSTAIREISLL
2372
2373 /(\.\d\d[1-9]?)\d+/
2374     1.230003938
2375  0: .230003938
2376  1: .23
2377     1.875000282
2378  0: .875000282
2379  1: .875
2380     1.235
2381  0: .235
2382  1: .23
2383
2384 /(\.\d\d((?=0)|\d(?=\d)))/
2385     1.230003938
2386  0: .23
2387  1: .23
2388  2:
2389     1.875000282
2390  0: .875
2391  1: .875
2392  2: 5
2393     *** Failers
2394 No match
2395     1.235
2396 No match
2397
2398 /a(?)b/
2399     ab
2400  0: ab
2401
2402 /\b(foo)\s+(\w+)/i
2403     Food is on the foo table
2404  0: foo table
2405  1: foo
2406  2: table
2407
2408 /foo(.*)bar/
2409     The food is under the bar in the barn.
2410  0: food is under the bar in the bar
2411  1: d is under the bar in the
2412
2413 /foo(.*?)bar/
2414     The food is under the bar in the barn.
2415  0: food is under the bar
2416  1: d is under the
2417
2418 /(.*)(\d*)/
2419     I have 2 numbers: 53147
2420  0: I have 2 numbers: 53147
2421  1: I have 2 numbers: 53147
2422  2:
2423
2424 /(.*)(\d+)/
2425     I have 2 numbers: 53147
2426  0: I have 2 numbers: 53147
2427  1: I have 2 numbers: 5314
2428  2: 7
2429
2430 /(.*?)(\d*)/
2431     I have 2 numbers: 53147
2432  0:
2433  1:
2434  2:
2435
2436 /(.*?)(\d+)/
2437     I have 2 numbers: 53147
2438  0: I have 2
2439  1: I have
2440  2: 2
2441
2442 /(.*)(\d+)$/
2443     I have 2 numbers: 53147
2444  0: I have 2 numbers: 53147
2445  1: I have 2 numbers: 5314
2446  2: 7
2447
2448 /(.*?)(\d+)$/
2449     I have 2 numbers: 53147
2450  0: I have 2 numbers: 53147
2451  1: I have 2 numbers:
2452  2: 53147
2453
2454 /(.*)\b(\d+)$/
2455     I have 2 numbers: 53147
2456  0: I have 2 numbers: 53147
2457  1: I have 2 numbers:
2458  2: 53147
2459
2460 /(.*\D)(\d+)$/
2461     I have 2 numbers: 53147
2462  0: I have 2 numbers: 53147
2463  1: I have 2 numbers:
2464  2: 53147
2465
2466 /^\D*(?!123)/
2467     ABC123
2468  0: AB
2469
2470 /^(\D*)(?=\d)(?!123)/
2471     ABC445
2472  0: ABC
2473  1: ABC
2474     *** Failers
2475 No match
2476     ABC123
2477 No match
2478
2479 /^[W-]46]/
2480     W46]789
2481  0: W46]
2482     -46]789
2483  0: -46]
2484     *** Failers
2485 No match
2486     Wall
2487 No match
2488     Zebra
2489 No match
2490     42
2491 No match
2492     [abcd]
2493 No match
2494     ]abcd[
2495 No match
2496
2497 /^[W-\]46]/
2498     W46]789
2499  0: W
2500     Wall
2501  0: W
2502     Zebra
2503  0: Z
2504     Xylophone
2505  0: X
2506     42
2507  0: 4
2508     [abcd]
2509  0: [
2510     ]abcd[
2511  0: ]
2512     \\backslash
2513  0: \
2514     *** Failers
2515 No match
2516     -46]789
2517 No match
2518     well
2519 No match
2520
2521 /\d\d\/\d\d\/\d\d\d\d/
2522     01/01/2000
2523  0: 01/01/2000
2524
2525 /word (?:[a-zA-Z0-9]+ ){0,10}otherword/
2526   word cat dog elephant mussel cow horse canary baboon snake shark otherword
2527  0: word cat dog elephant mussel cow horse canary baboon snake shark otherword
2528   word cat dog elephant mussel cow horse canary baboon snake shark
2529 No match
2530
2531 /word (?:[a-zA-Z0-9]+ ){0,300}otherword/
2532   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
2533 No match
2534
2535 /^(a){0,0}/
2536     bcd
2537  0:
2538     abc
2539  0:
2540     aab
2541  0:
2542
2543 /^(a){0,1}/
2544     bcd
2545  0:
2546     abc
2547  0: a
2548  1: a
2549     aab
2550  0: a
2551  1: a
2552
2553 /^(a){0,2}/
2554     bcd
2555  0:
2556     abc
2557  0: a
2558  1: a
2559     aab
2560  0: aa
2561  1: a
2562
2563 /^(a){0,3}/
2564     bcd
2565  0:
2566     abc
2567  0: a
2568  1: a
2569     aab
2570  0: aa
2571  1: a
2572     aaa
2573  0: aaa
2574  1: a
2575
2576 /^(a){0,}/
2577     bcd
2578  0:
2579     abc
2580  0: a
2581  1: a
2582     aab
2583  0: aa
2584  1: a
2585     aaa
2586  0: aaa
2587  1: a
2588     aaaaaaaa
2589  0: aaaaaaaa
2590  1: a
2591
2592 /^(a){1,1}/
2593     bcd
2594 No match
2595     abc
2596  0: a
2597  1: a
2598     aab
2599  0: a
2600  1: a
2601
2602 /^(a){1,2}/
2603     bcd
2604 No match
2605     abc
2606  0: a
2607  1: a
2608     aab
2609  0: aa
2610  1: a
2611
2612 /^(a){1,3}/
2613     bcd
2614 No match
2615     abc
2616  0: a
2617  1: a
2618     aab
2619  0: aa
2620  1: a
2621     aaa
2622  0: aaa
2623  1: a
2624
2625 /^(a){1,}/
2626     bcd
2627 No match
2628     abc
2629  0: a
2630  1: a
2631     aab
2632  0: aa
2633  1: a
2634     aaa
2635  0: aaa
2636  1: a
2637     aaaaaaaa
2638  0: aaaaaaaa
2639  1: a
2640
2641 /.*\.gif/
2642     borfle\nbib.gif\nno
2643  0: bib.gif
2644
2645 /.{0,}\.gif/
2646     borfle\nbib.gif\nno
2647  0: bib.gif
2648
2649 /.*\.gif/m
2650     borfle\nbib.gif\nno
2651  0: bib.gif
2652
2653 /.*\.gif/s
2654     borfle\nbib.gif\nno
2655  0: borfle\x0abib.gif
2656
2657 /.*\.gif/ms
2658     borfle\nbib.gif\nno
2659  0: borfle\x0abib.gif
2660
2661 /.*$/
2662     borfle\nbib.gif\nno
2663  0: no
2664
2665 /.*$/m
2666     borfle\nbib.gif\nno
2667  0: borfle
2668
2669 /.*$/s
2670     borfle\nbib.gif\nno
2671  0: borfle\x0abib.gif\x0ano
2672
2673 /.*$/ms
2674     borfle\nbib.gif\nno
2675  0: borfle\x0abib.gif\x0ano
2676
2677 /.*$/
2678     borfle\nbib.gif\nno\n
2679  0: no
2680
2681 /.*$/m
2682     borfle\nbib.gif\nno\n
2683  0: borfle
2684
2685 /.*$/s
2686     borfle\nbib.gif\nno\n
2687  0: borfle\x0abib.gif\x0ano\x0a
2688
2689 /.*$/ms
2690     borfle\nbib.gif\nno\n
2691  0: borfle\x0abib.gif\x0ano\x0a
2692
2693 /(.*X|^B)/
2694     abcde\n1234Xyz
2695  0: 1234X
2696  1: 1234X
2697     BarFoo
2698  0: B
2699  1: B
2700     *** Failers
2701 No match
2702     abcde\nBar
2703 No match
2704
2705 /(.*X|^B)/m
2706     abcde\n1234Xyz
2707  0: 1234X
2708  1: 1234X
2709     BarFoo
2710  0: B
2711  1: B
2712     abcde\nBar
2713  0: B
2714  1: B
2715
2716 /(.*X|^B)/s
2717     abcde\n1234Xyz
2718  0: abcde\x0a1234X
2719  1: abcde\x0a1234X
2720     BarFoo
2721  0: B
2722  1: B
2723     *** Failers
2724 No match
2725     abcde\nBar
2726 No match
2727
2728 /(.*X|^B)/ms
2729     abcde\n1234Xyz
2730  0: abcde\x0a1234X
2731  1: abcde\x0a1234X
2732     BarFoo
2733  0: B
2734  1: B
2735     abcde\nBar
2736  0: B
2737  1: B
2738
2739 /(?s)(.*X|^B)/
2740     abcde\n1234Xyz
2741  0: abcde\x0a1234X
2742  1: abcde\x0a1234X
2743     BarFoo
2744  0: B
2745  1: B
2746     *** Failers
2747 No match
2748     abcde\nBar
2749 No match
2750
2751 /(?s:.*X|^B)/
2752     abcde\n1234Xyz
2753  0: abcde\x0a1234X
2754     BarFoo
2755  0: B
2756     *** Failers
2757 No match
2758     abcde\nBar
2759 No match
2760
2761 /^.*B/
2762     **** Failers
2763 No match
2764     abc\nB
2765 No match
2766
2767 /(?s)^.*B/
2768     abc\nB
2769  0: abc\x0aB
2770
2771 /(?m)^.*B/
2772     abc\nB
2773  0: B
2774
2775 /(?ms)^.*B/
2776     abc\nB
2777  0: abc\x0aB
2778
2779 /(?ms)^B/
2780     abc\nB
2781  0: B
2782
2783 /(?s)B$/
2784     B\n
2785  0: B
2786
2787 /^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]/
2788     123456654321
2789  0: 123456654321
2790
2791 /^\d\d\d\d\d\d\d\d\d\d\d\d/
2792     123456654321
2793  0: 123456654321
2794
2795 /^[\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d]/
2796     123456654321
2797  0: 123456654321
2798
2799 /^[abc]{12}/
2800     abcabcabcabc
2801  0: abcabcabcabc
2802
2803 /^[a-c]{12}/
2804     abcabcabcabc
2805  0: abcabcabcabc
2806
2807 /^(a|b|c){12}/
2808     abcabcabcabc
2809  0: abcabcabcabc
2810  1: c
2811
2812 /^[abcdefghijklmnopqrstuvwxy0123456789]/
2813     n
2814  0: n
2815     *** Failers
2816 No match
2817     z
2818 No match
2819
2820 /abcde{0,0}/
2821     abcd
2822  0: abcd
2823     *** Failers
2824 No match
2825     abce
2826 No match
2827
2828 /ab[cd]{0,0}e/
2829     abe
2830  0: abe
2831     *** Failers
2832 No match
2833     abcde
2834 No match
2835
2836 /ab(c){0,0}d/
2837     abd
2838  0: abd
2839     *** Failers
2840 No match
2841     abcd
2842 No match
2843
2844 /a(b*)/
2845     a
2846  0: a
2847  1:
2848     ab
2849  0: ab
2850  1: b
2851     abbbb
2852  0: abbbb
2853  1: bbbb
2854     *** Failers
2855  0: a
2856  1:
2857     bbbbb
2858 No match
2859
2860 /ab\d{0}e/
2861     abe
2862  0: abe
2863     *** Failers
2864 No match
2865     ab1e
2866 No match
2867
2868 /"([^\\"]+|\\.)*"/
2869     the \"quick\" brown fox
2870  0: "quick"
2871  1: quick
2872     \"the \\\"quick\\\" brown fox\"
2873  0: "the \"quick\" brown fox"
2874  1:  brown fox
2875
2876 /.*?/g+
2877     abc
2878  0:
2879  0+ abc
2880  0: a
2881  0+ bc
2882  0:
2883  0+ bc
2884  0: b
2885  0+ c
2886  0:
2887  0+ c
2888  0: c
2889  0+
2890  0:
2891  0+
2892
2893 /\b/g+
2894     abc
2895  0:
2896  0+ abc
2897  0:
2898  0+
2899
2900 /\b/+g
2901     abc
2902  0:
2903  0+ abc
2904  0:
2905  0+
2906
2907 //g
2908     abc
2909  0:
2910  0:
2911  0:
2912  0:
2913
2914 /<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
2915   <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>
2916  0: <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>
2917  1:  BGCOLOR='#DBE9E9'
2918  2:  align=left valign=top
2919  3: 43.
2920  4: <a href='joblist.cfm?JobID=94 6735&Keyword='>Word Processor<BR>(N-1286)
2921  5:
2922  6:
2923  7: <unset>
2924  8:  align=left valign=top
2925  9: Lega lstaff.com
2926 10:  align=left valign=top
2927 11: CA - Statewide
2928
2929 /a[^a]b/
2930     acb
2931  0: acb
2932     a\nb
2933  0: a\x0ab
2934
2935 /a.b/
2936     acb
2937  0: acb
2938     *** Failers
2939 No match
2940     a\nb
2941 No match
2942
2943 /a[^a]b/s
2944     acb
2945  0: acb
2946     a\nb
2947  0: a\x0ab
2948
2949 /a.b/s
2950     acb
2951  0: acb
2952     a\nb
2953  0: a\x0ab
2954
2955 /^(b+?|a){1,2}?c/
2956     bac
2957  0: bac
2958  1: a
2959     bbac
2960  0: bbac
2961  1: a
2962     bbbac
2963  0: bbbac
2964  1: a
2965     bbbbac
2966  0: bbbbac
2967  1: a
2968     bbbbbac
2969  0: bbbbbac
2970  1: a
2971
2972 /^(b+|a){1,2}?c/
2973     bac
2974  0: bac
2975  1: a
2976     bbac
2977  0: bbac
2978  1: a
2979     bbbac
2980  0: bbbac
2981  1: a
2982     bbbbac
2983  0: bbbbac
2984  1: a
2985     bbbbbac
2986  0: bbbbbac
2987  1: a
2988
2989 /(?!\A)x/m
2990     x\nb\n
2991 No match
2992     a\bx\n
2993  0: x
2994
2995 /\x0{ab}/
2996     \0{ab}
2997  0: \x00{ab}
2998
2999 /(A|B)*?CD/
3000     CD
3001  0: CD
3002
3003 /(A|B)*CD/
3004     CD
3005  0: CD
3006
3007 /(AB)*?\1/
3008     ABABAB
3009  0: ABAB
3010  1: AB
3011
3012 /(AB)*\1/
3013     ABABAB
3014  0: ABABAB
3015  1: AB
3016
3017 / End of testinput1 /
3018