📄 testoutput2
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/^abc/m Capturing subpattern count = 0Options: multilineFirst char at start or follows \nNeed char = 'c'/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/Capturing subpattern count = 5Partial matching not supportedOptions: anchoredNo first charNo need char aaaaabbbbbcccccdef 0: aaaaabbbbbcccccdef 1: aaaaabbbbbcccccdef 2: aaaaa 3: b 4: bbbbccccc 5: def/(?<=foo)[ab]/SCapturing subpattern count = 0No optionsNo first charNo need charStarting byte set: a b /(?<!foo)(alpha|omega)/SCapturing subpattern count = 1No optionsNo first charNeed char = 'a'Starting byte set: a o /(?!alphabet)[ab]/SCapturing subpattern count = 0No optionsNo first charNo need charStarting byte set: a b /(?<=foo\n)^bar/mCapturing subpattern count = 0Options: multilineNo first charNeed char = 'r' foo\nbarbar 0: bar ***FailersNo match rhubarb No match barbellNo match abc\nbarton No match/^(?<=foo\n)bar/mCapturing subpattern count = 0Options: multilineFirst char at start or follows \nNeed char = 'r' foo\nbarbar 0: bar ***FailersNo match rhubarb No match barbellNo match abc\nbarton No match/(?>^abc)/mCapturing subpattern count = 0Options: multilineFirst char at start or follows \nNeed char = 'c' abc 0: abc def\nabc 0: abc *** FailersNo match defabc No match/(?<=ab(c+)d)ef/Failed: lookbehind assertion is not fixed length at offset 11/(?<=ab(?<=c+)d)ef/Failed: lookbehind assertion is not fixed length at offset 12/(?<=ab(c|de)f)g/Failed: lookbehind assertion is not fixed length at offset 13/The next three are in testinput2 because they have variable length branches/Capturing subpattern count = 0No optionsFirst char = 'T'Need char = 's'/(?<=bullock|donkey)-cart/Capturing subpattern count = 0No optionsFirst char = '-'Need char = 't' the bullock-cart 0: -cart a donkey-cart race 0: -cart *** FailersNo match cartNo match horse-and-cart No match /(?<=ab(?i)x|y|z)/Capturing subpattern count = 0No optionsCase state changesNo first charNo need char/(?>.*)(?<=(abcd)|(xyz))/Capturing subpattern count = 2Partial matching not supportedNo optionsFirst char at start or follows \nNo need char alphabetabcd 0: alphabetabcd 1: abcd endingxyz 0: endingxyz 1: <unset> 2: xyz/(?<=ab(?i)x(?-i)y|(?i)z|b)ZZ/Capturing subpattern count = 0No optionsCase state changesFirst char = 'Z'Need char = 'Z' abxyZZ 0: ZZ abXyZZ 0: ZZ ZZZ 0: ZZ zZZ 0: ZZ bZZ 0: ZZ BZZ 0: ZZ *** FailersNo match ZZ No match abXYZZ No match zzzNo match bzz No match/(?<!(foo)a)bar/Capturing subpattern count = 1No optionsFirst char = 'b'Need char = 'r' bar 0: bar foobbar 0: bar *** FailersNo match fooabar No match/This one is here because Perl 5.005_02 doesn't fail it/Capturing subpattern count = 0No optionsFirst char = 'T'Need char = 't'/^(a)?(?(1)a|b)+$/Capturing subpattern count = 1Options: anchoredNo first charNo need char *** FailersNo match a No match/This one is here because I think Perl 5.005_02 gets the setting of $1 wrong/Capturing subpattern count = 0No optionsFirst char = 'T'Need char = 'g'/^(a\1?){4}$/Capturing subpattern count = 1Max back reference = 1Options: anchoredNo first charNo need char aaaaaa 0: aaaaaa 1: aa /These are syntax tests from Perl 5.005/Capturing subpattern count = 0No optionsFirst char = 'T'Need char = '5'/a[b-a]/Failed: range out of order in character class at offset 4/a[]b/Failed: missing terminating ] for character class at offset 4/a[/Failed: missing terminating ] for character class at offset 2/*a/Failed: nothing to repeat at offset 0/(*)b/Failed: nothing to repeat at offset 1/abc)/Failed: unmatched parentheses at offset 3/(abc/Failed: missing ) at offset 4/a**/Failed: nothing to repeat at offset 2/)(/Failed: unmatched parentheses at offset 0/\1/Failed: reference to non-existent subpattern at offset 2/\2/Failed: reference to non-existent subpattern at offset 2/(a)|\2/Failed: reference to non-existent subpattern at offset 6/a[b-a]/iFailed: range out of order in character class at offset 4/a[]b/iFailed: missing terminating ] for character class at offset 4/a[/iFailed: missing terminating ] for character class at offset 2/*a/iFailed: nothing to repeat at offset 0/(*)b/iFailed: nothing to repeat at offset 1/abc)/iFailed: unmatched parentheses at offset 3/(abc/iFailed: missing ) at offset 4/a**/iFailed: nothing to repeat at offset 2/)(/iFailed: unmatched parentheses at offset 0/:(?:/Failed: missing ) at offset 4/(?<%)b/Failed: unrecognized character after (?< at offset 3/a(?{)b/Failed: unrecognized character after (? at offset 3/a(?{{})b/Failed: unrecognized character after (? at offset 3/a(?{}})b/Failed: unrecognized character after (? at offset 3/a(?{"{"})b/Failed: unrecognized character after (? at offset 3/a(?{"{"}})b/Failed: unrecognized character after (? at offset 3/(?(1?)a|b)/Failed: malformed number after (?( at offset 4/(?(1)a|b|c)/Failed: conditional group contains more than two branches at offset 10/[a[:xyz:/Failed: missing terminating ] for character class at offset 8/(?<=x+)y/Failed: lookbehind assertion is not fixed length at offset 6/a{37,17}/Failed: numbers out of order in {} quantifier at offset 7/abc/\Failed: \ at end of pattern at offset 4/abc/\PFailed: POSIX code 9: bad escape sequence at offset 4 /abc/\iFailed: \ at end of pattern at offset 4/(a)bc(d)/Capturing subpattern count = 2No optionsFirst char = 'a'Need char = 'd' abcd 0: abcd 1: a 2: d abcd\C2 0: abcd 1: a 2: d 2C d (1) abcd\C5 0: abcd 1: a 2: dcopy substring 5 failed -7 /(.{20})/Capturing subpattern count = 1Partial matching not supportedNo optionsNo first charNo need char abcdefghijklmnopqrstuvwxyz 0: abcdefghijklmnopqrst 1: abcdefghijklmnopqrst abcdefghijklmnopqrstuvwxyz\C1 0: abcdefghijklmnopqrst 1: abcdefghijklmnopqrstcopy substring 1 failed -6 abcdefghijklmnopqrstuvwxyz\G1 0: abcdefghijklmnopqrst 1: abcdefghijklmnopqrst 1G abcdefghijklmnopqrst (20) /(.{15})/Capturing subpattern count = 1Partial matching not supportedNo optionsNo first charNo need char abcdefghijklmnopqrstuvwxyz 0: abcdefghijklmno 1: abcdefghijklmno abcdefghijklmnopqrstuvwxyz\C1\G1 0: abcdefghijklmno 1: abcdefghijklmno 1C abcdefghijklmno (15) 1G abcdefghijklmno (15)/(.{16})/Capturing subpattern count = 1Partial matching not supportedNo optionsNo first charNo need char abcdefghijklmnopqrstuvwxyz 0: abcdefghijklmnop 1: abcdefghijklmnop abcdefghijklmnopqrstuvwxyz\C1\G1\L 0: abcdefghijklmnop 1: abcdefghijklmnopcopy substring 1 failed -6 1G abcdefghijklmnop (16) 0L abcdefghijklmnop 1L abcdefghijklmnop /^(a|(bc))de(f)/Capturing subpattern count = 3Options: anchoredNo first charNo need char adef\G1\G2\G3\G4\L 0: adef 1: a 2: <unset> 3: f 1G a (1) 2G (0) 3G f (1)get substring 4 failed -7 0L adef 1L a 2L 3L f bcdef\G1\G2\G3\G4\L 0: bcdef 1: bc 2: bc 3: f 1G bc (2) 2G bc (2) 3G f (1)get substring 4 failed -7 0L bcdef 1L bc 2L bc 3L f adefghijk\C0 0: adef 1: a 2: <unset> 3: f 0C adef (4) /^abc\00def/Capturing subpattern count = 0Options: anchoredNo first charNo need char abc\00def\L\C0 0: abc\x00def 0C abc (7) 0L abc /word ((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )?)?)?)?)?)?)?)?)?otherword/MMemory allocation (code space): 432Capturing subpattern count = 8Partial matching not supportedNo optionsFirst char = 'w'Need char = 'd'/.*X/D------------------------------------------------------------------ 0 7 Bra 0 3 Any* 5 X 7 7 Ket 10 End------------------------------------------------------------------Capturing subpattern count = 0Partial matching not supportedNo optionsFirst char at start or follows \nNeed char = 'X'/.*X/Ds------------------------------------------------------------------ 0 7 Bra 0 3 Any* 5 X 7 7 Ket 10 End------------------------------------------------------------------Capturing subpattern count = 0Partial matching not supportedOptions: anchored dotallNo first charNeed char = 'X'/(.*X|^B)/D------------------------------------------------------------------ 0 19 Bra 0 3 7 Bra 1 6 Any* 8 X 10 6 Alt 13 ^ 14 B 16 13 Ket 19 19 Ket 22 End------------------------------------------------------------------Capturing subpattern count = 1Partial matching not supportedNo optionsFirst char at start or follows \nNo need char/(.*X|^B)/Ds------------------------------------------------------------------ 0 19 Bra 0 3 7 Bra 1 6 Any* 8 X 10 6 Alt 13 ^ 14 B 16 13 Ket 19 19 Ket 22 End------------------------------------------------------------------Capturing subpattern count = 1Partial matching not supportedOptions: anchored dotallNo first charNo need char /(?s)(.*X|^B)/D------------------------------------------------------------------ 0 19 Bra 0 3 7 Bra 1 6 Any* 8 X 10 6 Alt 13 ^ 14 B 16 13 Ket 19 19 Ket 22 End------------------------------------------------------------------Capturing subpattern count = 1Partial matching not supportedOptions: anchored dotallNo first charNo need char/(?s:.*X|^B)/D------------------------------------------------------------------ 0 25 Bra 0 3 9 Bra 0 6 04 Opt 8 Any* 10 X 12 8 Alt 15 04 Opt 17 ^ 18 B 20 17 Ket 23 00 Opt 25 25 Ket 28 End------------------------------------------------------------------Capturing subpattern count = 0Partial matching not supportedNo optionsFirst char at start or follows \nNo need char/\Biss\B/+Capturing subpattern count = 0No optionsFirst char = 'i'Need char = 's' Mississippi 0: iss 0+ issippi/\Biss\B/+P Mississippi 0: iss 0+ issippi/iss/G+Capturing subpattern count = 0No optionsFirst char = 'i'Need char = 's' Mississippi 0: iss 0+ issippi 0: iss 0+ ippi/\Biss\B/G+Capturing subpattern count = 0No optionsFirst char = 'i'Need char = 's' Mississippi 0: iss 0+ issippi/\Biss\B/g+Capturing subpattern count = 0No optionsFirst char = 'i'Need char = 's' Mississippi 0: iss 0+ issippi 0: iss 0+ ippi *** FailersNo match Mississippi\ANo match/(?<=[Ms])iss/g+Capturing subpattern count = 0No optionsFirst char = 'i'Need char = 's' Mississippi 0: iss 0+ issippi 0: iss 0+ ippi/(?<=[Ms])iss/G+Capturing subpattern count = 0No optionsFirst char = 'i'Need char = 's' Mississippi 0: iss 0+ issippi/^iss/g+Capturing subpattern count = 0Options: anchoredNo first charNo need char ississippi 0: iss 0+ issippi /.*iss/g+Capturing subpattern count = 0Partial matching not supportedNo optionsFirst char at start or follows \nNeed char = 's' abciss\nxyzisspqr 0: abciss 0+ \x0axyzisspqr 0: xyziss 0+ pqr/.i./+gCapturing subpattern count = 0No optionsNo first charNeed char = 'i' Mississippi 0: Mis 0+ sissippi 0: sis 0+ sippi 0: sip 0+ pi⌨️ 快捷键说明
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