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| author | Vincent Peyruqueou | 2023-03-27 11:46:59 +0200 |
|---|---|---|
| committer | Vincent Peyruqueou | 2023-03-27 11:46:59 +0200 |
| commit | 0916b5f9072f7bd1b7b045ceb07758f9dc097ac2 (patch) | |
| tree | 2904afe1d5d4d770695f78db5ccd722735a8e67b /pcre/testdata/testoutput2 | |
| parent | 5443d6828eaf5cbc7dc4613d9d75b4c192d17730 (diff) | |
| download | ivy-c-master.zip ivy-c-master.tar.gz ivy-c-master.tar.bz2 ivy-c-master.tar.xz | |
Diffstat (limited to 'pcre/testdata/testoutput2')
| -rw-r--r-- | pcre/testdata/testoutput2 | 14727 |
1 files changed, 14727 insertions, 0 deletions
diff --git a/pcre/testdata/testoutput2 b/pcre/testdata/testoutput2 new file mode 100644 index 0000000..f5d32d6 --- /dev/null +++ b/pcre/testdata/testoutput2 @@ -0,0 +1,14727 @@ +/-- This set of tests is not Perl-compatible. It checks on special features + of PCRE's API, error diagnostics, and the compiled code of some patterns. + It also checks the non-Perl syntax the PCRE supports (Python, .NET, + Oniguruma). Finally, there are some tests where PCRE and Perl differ, + either because PCRE can't be compatible, or there is a possible Perl + bug. + + NOTE: This is a non-UTF set of tests. When UTF support is needed, use + test 5, and if Unicode Property Support is needed, use test 7. --/ + +< forbid 8W + +/(a)b|/I +Capturing subpattern count = 1 +May match empty string +No options +No first char +No need char + +/abc/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' + abc + 0: abc + defabc + 0: abc + \Aabc + 0: abc + *** Failers +No match + \Adefabc +No match + ABC +No match + +/^abc/I +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + abc + 0: abc + \Aabc + 0: abc + *** Failers +No match + defabc +No match + \Adefabc +No match + +/a+bc/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' + +/a*bc/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'c' + +/a{3}bc/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' + +/(abc|a+z)/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/^abc$/I +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + abc + 0: abc + *** Failers +No match + def\nabc +No match + +/ab\idef/X +Failed: unrecognized character follows \ at offset 3 + +/(?X)ab\idef/X +Failed: unrecognized character follows \ at offset 7 + +/x{5,4}/ +Failed: numbers out of order in {} quantifier at offset 5 + +/z{65536}/ +Failed: number too big in {} quantifier at offset 7 + +/[abcd/ +Failed: missing terminating ] for character class at offset 5 + +/(?X)[\B]/ +Failed: invalid escape sequence in character class at offset 6 + +/(?X)[\R]/ +Failed: invalid escape sequence in character class at offset 6 + +/(?X)[\X]/ +Failed: invalid escape sequence in character class at offset 6 + +/[\B]/BZ +------------------------------------------------------------------ + Bra + B + Ket + End +------------------------------------------------------------------ + +/[\R]/BZ +------------------------------------------------------------------ + Bra + R + Ket + End +------------------------------------------------------------------ + +/[\X]/BZ +------------------------------------------------------------------ + Bra + X + Ket + End +------------------------------------------------------------------ + +/[z-a]/ +Failed: range out of order in character class at offset 3 + +/^*/ +Failed: nothing to repeat at offset 1 + +/(abc/ +Failed: missing ) at offset 4 + +/(?# abc/ +Failed: missing ) after comment at offset 7 + +/(?z)abc/ +Failed: unrecognized character after (? or (?- at offset 2 + +/.*b/I +Capturing subpattern count = 0 +No options +First char at start or follows newline +Need char = 'b' + +/.*?b/I +Capturing subpattern count = 0 +No options +First char at start or follows newline +Need char = 'b' + +/cat|dog|elephant/I +Capturing subpattern count = 0 +No options +No first char +No need char + this sentence eventually mentions a cat + 0: cat + this sentences rambles on and on for a while and then reaches elephant + 0: elephant + +/cat|dog|elephant/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 3 +Starting chars: c d e + this sentence eventually mentions a cat + 0: cat + this sentences rambles on and on for a while and then reaches elephant + 0: elephant + +/cat|dog|elephant/IiS +Capturing subpattern count = 0 +Options: caseless +No first char +No need char +Subject length lower bound = 3 +Starting chars: C D E c d e + this sentence eventually mentions a CAT cat + 0: CAT + this sentences rambles on and on for a while to elephant ElePhant + 0: elephant + +/a|[bcd]/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b c d + +/(a|[^\dZ])/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: \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 \x20 ! " # $ % & ' ( ) * + , - . / : ; < = > + ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y [ \ ] ^ _ ` a b c d + e f g h i j k l m n o p q r s t u v w x y z { | } ~ \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 + +/(a|b)*[\s]/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 a b + +/(ab\2)/ +Failed: reference to non-existent subpattern at offset 6 + +/{4,5}abc/ +Failed: nothing to repeat at offset 4 + +/(a)(b)(c)\2/I +Capturing subpattern count = 3 +Max back reference = 2 +No options +First char = 'a' +Need char = 'c' + abcb + 0: abcb + 1: a + 2: b + 3: c + \O0abcb +Matched, but too many substrings + \O3abcb +Matched, but too many substrings + 0: abcb + \O6abcb +Matched, but too many substrings + 0: abcb + 1: a + \O9abcb +Matched, but too many substrings + 0: abcb + 1: a + 2: b + \O12abcb + 0: abcb + 1: a + 2: b + 3: c + +/(a)bc|(a)(b)\2/I +Capturing subpattern count = 3 +Max back reference = 2 +No options +First char = 'a' +No need char + abc + 0: abc + 1: a + \O0abc +Matched, but too many substrings + \O3abc +Matched, but too many substrings + 0: abc + \O6abc + 0: abc + 1: a + aba + 0: aba + 1: <unset> + 2: a + 3: b + \O0aba +Matched, but too many substrings + \O3aba +Matched, but too many substrings + 0: aba + \O6aba +Matched, but too many substrings + 0: aba + 1: <unset> + \O9aba +Matched, but too many substrings + 0: aba + 1: <unset> + 2: a + \O12aba + 0: aba + 1: <unset> + 2: a + 3: b + +/abc$/IE +Capturing subpattern count = 0 +Options: dollar_endonly +First char = 'a' +Need char = 'c' + abc + 0: abc + *** Failers +No match + abc\n +No match + abc\ndef +No match + +/(a)(b)(c)(d)(e)\6/ +Failed: reference to non-existent subpattern at offset 17 + +/the quick brown fox/I +Capturing subpattern count = 0 +No options +First char = 't' +Need char = 'x' + the quick brown fox + 0: the quick brown fox + this is a line with the quick brown fox + 0: the quick brown fox + +/the quick brown fox/IA +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + the quick brown fox + 0: the quick brown fox + *** Failers +No match + this is a line with the quick brown fox +No match + +/ab(?z)cd/ +Failed: unrecognized character after (? or (?- at offset 4 + +/^abc|def/I +Capturing subpattern count = 0 +No options +No first char +No need char + abcdef + 0: abc + abcdef\B + 0: def + +/.*((abc)$|(def))/I +Capturing subpattern count = 3 +No options +First char at start or follows newline +No need char + defabc + 0: defabc + 1: abc + 2: abc + \Zdefabc + 0: def + 1: def + 2: <unset> + 3: def + +/)/ +Failed: unmatched parentheses at offset 0 + +/a[]b/ +Failed: missing terminating ] for character class at offset 4 + +/[^aeiou ]{3,}/I +Capturing subpattern count = 0 +No options +No first char +No need char + co-processors, and for + 0: -pr + +/<.*>/I +Capturing subpattern count = 0 +No options +First char = '<' +Need char = '>' + abc<def>ghi<klm>nop + 0: <def>ghi<klm> + +/<.*?>/I +Capturing subpattern count = 0 +No options +First char = '<' +Need char = '>' + abc<def>ghi<klm>nop + 0: <def> + +/<.*>/IU +Capturing subpattern count = 0 +Options: ungreedy +First char = '<' +Need char = '>' + abc<def>ghi<klm>nop + 0: <def> + +/(?U)<.*>/I +Capturing subpattern count = 0 +No options +First char = '<' +Need char = '>' + abc<def>ghi<klm>nop + 0: <def> + +/<.*?>/IU +Capturing subpattern count = 0 +Options: ungreedy +First char = '<' +Need char = '>' + abc<def>ghi<klm>nop + 0: <def>ghi<klm> + +/={3,}/IU +Capturing subpattern count = 0 +Options: ungreedy +First char = '=' +Need char = '=' + abc========def + 0: === + +/(?U)={3,}?/I +Capturing subpattern count = 0 +No options +First char = '=' +Need char = '=' + abc========def + 0: ======== + +/(?<!bar|cattle)foo/I +Capturing subpattern count = 0 +Max lookbehind = 6 +No options +First char = 'f' +Need char = 'o' + foo + 0: foo + catfoo + 0: foo + *** Failers +No match + the barfoo +No match + and cattlefoo +No match + +/(?<=a+)b/ +Failed: lookbehind assertion is not fixed length at offset 6 + +/(?<=aaa|b{0,3})b/ +Failed: lookbehind assertion is not fixed length at offset 14 + +/(?<!(foo)a\1)bar/ +Failed: lookbehind assertion is not fixed length at offset 12 + +/(?i)abc/I +Capturing subpattern count = 0 +No options +First char = 'a' (caseless) +Need char = 'c' (caseless) + +/(a|(?m)a)/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/(?i)^1234/I +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/(^b|(?i)^d)/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + +/(?s).*/I +Capturing subpattern count = 0 +May match empty string +Options: anchored +No first char +No need char + +/[abcd]/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b c d + +/(?i)[abcd]/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: A B C D a b c d + +/(?m)[xy]|(b|c)/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: b c x y + +/(^a|^b)/Im +Capturing subpattern count = 1 +Options: multiline +First char at start or follows newline +No need char + +/(?i)(^a|^b)/Im +Capturing subpattern count = 1 +Options: multiline +First char at start or follows newline +No need char + +/(a)(?(1)a|b|c)/ +Failed: conditional group contains more than two branches at offset 13 + +/(?(?=a)a|b|c)/ +Failed: conditional group contains more than two branches at offset 12 + +/(?(1a)/ +Failed: malformed number or name after (?( at offset 4 + +/(?(1a))/ +Failed: malformed number or name after (?( at offset 4 + +/(?(?i))/ +Failed: assertion expected after (?( or (?(?C) at offset 3 + +/(?(abc))/ +Failed: reference to non-existent subpattern at offset 7 + +/(?(?<ab))/ +Failed: assertion expected after (?( or (?(?C) at offset 3 + +/((?s)blah)\s+\1/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'b' +Need char = 'h' + +/((?i)blah)\s+\1/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'b' (caseless) +Need char = 'h' (caseless) + +/((?i)b)/IDZS +------------------------------------------------------------------ + Bra + CBra 1 + /i b + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +No options +First char = 'b' (caseless) +No need char +Subject length lower bound = 1 +No starting char list + +/(a*b|(?i:c*(?-i)d))/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: C a b c d + +/a$/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + a + 0: a + a\n + 0: a + *** Failers +No match + \Za +No match + \Za\n +No match + +/a$/Im +Capturing subpattern count = 0 +Options: multiline +First char = 'a' +No need char + a + 0: a + a\n + 0: a + \Za\n + 0: a + *** Failers +No match + \Za +No match + +/\Aabc/Im +Capturing subpattern count = 0 +Max lookbehind = 1 +Options: anchored multiline +No first char +No need char + +/^abc/Im +Capturing subpattern count = 0 +Options: multiline +First char at start or follows newline +Need char = 'c' + +/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/I +Capturing subpattern count = 5 +Options: anchored +No first char +No need char + aaaaabbbbbcccccdef + 0: aaaaabbbbbcccccdef + 1: aaaaabbbbbcccccdef + 2: aaaaa + 3: b + 4: bbbbccccc + 5: def + +/(?<=foo)[ab]/IS +Capturing subpattern count = 0 +Max lookbehind = 3 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b + +/(?<!foo)(alpha|omega)/IS +Capturing subpattern count = 1 +Max lookbehind = 3 +No options +No first char +Need char = 'a' +Subject length lower bound = 5 +Starting chars: a o + +/(?!alphabet)[ab]/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b + +/(?<=foo\n)^bar/Im +Capturing subpattern count = 0 +Max lookbehind = 4 +Contains explicit CR or LF match +Options: multiline +No first char +Need char = 'r' + foo\nbarbar + 0: bar + ***Failers +No match + rhubarb +No match + barbell +No match + abc\nbarton +No match + +/^(?<=foo\n)bar/Im +Capturing subpattern count = 0 +Max lookbehind = 4 +Contains explicit CR or LF match +Options: multiline +First char at start or follows newline +Need char = 'r' + foo\nbarbar + 0: bar + ***Failers +No match + rhubarb +No match + barbell +No match + abc\nbarton +No match + +/(?>^abc)/Im +Capturing subpattern count = 0 +Options: multiline +First char at start or follows newline +Need char = 'c' + abc + 0: abc + def\nabc + 0: abc + *** Failers +No 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/ + +/(?<=bullock|donkey)-cart/I +Capturing subpattern count = 0 +Max lookbehind = 7 +No options +First char = '-' +Need char = 't' + the bullock-cart + 0: -cart + a donkey-cart race + 0: -cart + *** Failers +No match + cart +No match + horse-and-cart +No match + +/(?<=ab(?i)x|y|z)/I +Capturing subpattern count = 0 +Max lookbehind = 3 +May match empty string +No options +No first char +No need char + +/(?>.*)(?<=(abcd)|(xyz))/I +Capturing subpattern count = 2 +Max lookbehind = 4 +May match empty string +No options +No first char +No need char + alphabetabcd + 0: alphabetabcd + 1: abcd + endingxyz + 0: endingxyz + 1: <unset> + 2: xyz + +/(?<=ab(?i)x(?-i)y|(?i)z|b)ZZ/I +Capturing subpattern count = 0 +Max lookbehind = 4 +No options +First char = 'Z' +Need char = 'Z' + abxyZZ + 0: ZZ + abXyZZ + 0: ZZ + ZZZ + 0: ZZ + zZZ + 0: ZZ + bZZ + 0: ZZ + BZZ + 0: ZZ + *** Failers +No match + ZZ +No match + abXYZZ +No match + zzz +No match + bzz +No match + +/(?<!(foo)a)bar/I +Capturing subpattern count = 1 +Max lookbehind = 4 +No options +First char = 'b' +Need char = 'r' + bar + 0: bar + foobbar + 0: bar + *** Failers +No match + fooabar +No match + +/This one is here because Perl behaves differently; see also the following/I +Capturing subpattern count = 0 +No options +First char = 'T' +Need char = 'g' + +/^(a\1?){4}$/I +Capturing subpattern count = 1 +Max back reference = 1 +Options: anchored +No first char +No need char + aaaa +No match + aaaaaa +No match + +/Perl does not fail these two for the final subjects. Neither did PCRE until/ +/release 8.01. The problem is in backtracking into a subpattern that contains/ +No match +/a recursive reference to itself. PCRE has now made these into atomic patterns./ +No match + +/^(xa|=?\1a){2}$/ + xa=xaa + 0: xa=xaa + 1: =xaa + ** Failers +No match + xa=xaaa +No match + +/^(xa|=?\1a)+$/ + xa=xaa + 0: xa=xaa + 1: =xaa + ** Failers +No match + xa=xaaa +No match + +/These are syntax tests from Perl 5.005/I +Capturing subpattern count = 0 +No options +First 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]/Ii +Failed: range out of order in character class at offset 4 + +/a[]b/Ii +Failed: missing terminating ] for character class at offset 4 + +/a[/Ii +Failed: missing terminating ] for character class at offset 2 + +/*a/Ii +Failed: nothing to repeat at offset 0 + +/(*)b/Ii +Failed: nothing to repeat at offset 1 + +/abc)/Ii +Failed: unmatched parentheses at offset 3 + +/(abc/Ii +Failed: missing ) at offset 4 + +/a**/Ii +Failed: nothing to repeat at offset 2 + +/)(/Ii +Failed: unmatched parentheses at offset 0 + +/:(?:/ +Failed: missing ) at offset 4 + +/(?<%)b/ +Failed: unrecognized character after (?< at offset 3 + +/a(?{)b/ +Failed: unrecognized character after (? or (?- at offset 3 + +/a(?{{})b/ +Failed: unrecognized character after (? or (?- at offset 3 + +/a(?{}})b/ +Failed: unrecognized character after (? or (?- at offset 3 + +/a(?{"{"})b/ +Failed: unrecognized character after (? or (?- at offset 3 + +/a(?{"{"}})b/ +Failed: unrecognized character after (? or (?- at offset 3 + +/(?(1?)a|b)/ +Failed: malformed number or name after (?( at offset 4 + +/[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/\i +Failed: \ at end of pattern at offset 4 + +/(a)bc(d)/I +Capturing subpattern count = 2 +No options +First 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: d +copy substring 5 failed -7 + +/(.{20})/I +Capturing subpattern count = 1 +No options +No first char +No need char + abcdefghijklmnopqrstuvwxyz + 0: abcdefghijklmnopqrst + 1: abcdefghijklmnopqrst + abcdefghijklmnopqrstuvwxyz\C1 + 0: abcdefghijklmnopqrst + 1: abcdefghijklmnopqrst + 1C abcdefghijklmnopqrst (20) + abcdefghijklmnopqrstuvwxyz\G1 + 0: abcdefghijklmnopqrst + 1: abcdefghijklmnopqrst + 1G abcdefghijklmnopqrst (20) + +/(.{15})/I +Capturing subpattern count = 1 +No options +No first char +No need char + abcdefghijklmnopqrstuvwxyz + 0: abcdefghijklmno + 1: abcdefghijklmno + abcdefghijklmnopqrstuvwxyz\C1\G1 + 0: abcdefghijklmno + 1: abcdefghijklmno + 1C abcdefghijklmno (15) + 1G abcdefghijklmno (15) + +/(.{16})/I +Capturing subpattern count = 1 +No options +No first char +No need char + abcdefghijklmnopqrstuvwxyz + 0: abcdefghijklmnop + 1: abcdefghijklmnop + abcdefghijklmnopqrstuvwxyz\C1\G1\L + 0: abcdefghijklmnop + 1: abcdefghijklmnop + 1C abcdefghijklmnop (16) + 1G abcdefghijklmnop (16) + 0L abcdefghijklmnop + 1L abcdefghijklmnop + +/^(a|(bc))de(f)/I +Capturing subpattern count = 3 +Options: anchored +No first char +No 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/I +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + abc\00def\L\C0 + 0: abc\x00def + 0C abc\x00def (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/I +Capturing subpattern count = 8 +Contains explicit CR or LF match +No options +First char = 'w' +Need char = 'd' + +/.*X/IDZ +------------------------------------------------------------------ + Bra + Any* + X + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char at start or follows newline +Need char = 'X' + +/.*X/IDZs +------------------------------------------------------------------ + Bra + AllAny* + X + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored dotall +No first char +Need char = 'X' + +/(.*X|^B)/IDZ +------------------------------------------------------------------ + Bra + CBra 1 + Any* + X + Alt + ^ + B + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +No options +First char at start or follows newline +No need char + +/(.*X|^B)/IDZs +------------------------------------------------------------------ + Bra + CBra 1 + AllAny* + X + Alt + ^ + B + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Options: anchored dotall +No first char +No need char + +/(?s)(.*X|^B)/IDZ +------------------------------------------------------------------ + Bra + CBra 1 + AllAny* + X + Alt + ^ + B + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + +/(?s:.*X|^B)/IDZ +------------------------------------------------------------------ + Bra + Bra + AllAny* + X + Alt + ^ + B + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/\Biss\B/I+ +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +First char = 'i' +Need char = 's' + Mississippi + 0: iss + 0+ issippi + +/iss/IG+ +Capturing subpattern count = 0 +No options +First char = 'i' +Need char = 's' + Mississippi + 0: iss + 0+ issippi + 0: iss + 0+ ippi + +/\Biss\B/IG+ +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +First char = 'i' +Need char = 's' + Mississippi + 0: iss + 0+ issippi + +/\Biss\B/Ig+ +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +First char = 'i' +Need char = 's' + Mississippi + 0: iss + 0+ issippi + 0: iss + 0+ ippi + *** Failers +No match + Mississippi\A +No match + +/(?<=[Ms])iss/Ig+ +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +First char = 'i' +Need char = 's' + Mississippi + 0: iss + 0+ issippi + 0: iss + 0+ ippi + +/(?<=[Ms])iss/IG+ +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +First char = 'i' +Need char = 's' + Mississippi + 0: iss + 0+ issippi + +/^iss/Ig+ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + ississippi + 0: iss + 0+ issippi + +/.*iss/Ig+ +Capturing subpattern count = 0 +No options +First char at start or follows newline +Need char = 's' + abciss\nxyzisspqr + 0: abciss + 0+ \x0axyzisspqr + 0: xyziss + 0+ pqr + +/.i./I+g +Capturing subpattern count = 0 +No options +No first char +Need char = 'i' + Mississippi + 0: Mis + 0+ sissippi + 0: sis + 0+ sippi + 0: sip + 0+ pi + Mississippi\A + 0: Mis + 0+ sissippi + 0: sis + 0+ sippi + 0: sip + 0+ pi + Missouri river + 0: Mis + 0+ souri river + 0: ri + 0+ river + 0: riv + 0+ er + Missouri river\A + 0: Mis + 0+ souri river + +/^.is/I+g +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + Mississippi + 0: Mis + 0+ sissippi + +/^ab\n/Ig+ +Capturing subpattern count = 0 +Contains explicit CR or LF match +Options: anchored +No first char +No need char + ab\nab\ncd + 0: ab\x0a + 0+ ab\x0acd + +/^ab\n/Img+ +Capturing subpattern count = 0 +Contains explicit CR or LF match +Options: multiline +First char at start or follows newline +Need char = \x0a + ab\nab\ncd + 0: ab\x0a + 0+ ab\x0acd + 0: ab\x0a + 0+ cd + +/abc/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' + +/abc|bac/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'c' + +/(abc|bac)/I +Capturing subpattern count = 1 +No options +No first char +Need char = 'c' + +/(abc|(c|dc))/I +Capturing subpattern count = 2 +No options +No first char +Need char = 'c' + +/(abc|(d|de)c)/I +Capturing subpattern count = 2 +No options +No first char +Need char = 'c' + +/a*/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + +/a+/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/(baa|a+)/I +Capturing subpattern count = 1 +No options +No first char +Need char = 'a' + +/a{0,3}/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + +/baa{3,}/I +Capturing subpattern count = 0 +No options +First char = 'b' +Need char = 'a' + +/"([^\\"]+|\\.)*"/I +Capturing subpattern count = 1 +No options +First char = '"' +Need char = '"' + +/(abc|ab[cd])/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/(a|.)/I +Capturing subpattern count = 1 +No options +No first char +No need char + +/a|ba|\w/I +Capturing subpattern count = 0 +No options +No first char +No need char + +/abc(?=pqr)/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'r' + +/...(?<=abc)/I +Capturing subpattern count = 0 +Max lookbehind = 3 +No options +No first char +No need char + +/abc(?!pqr)/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' + +/ab./I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/ab[xyz]/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/abc*/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/ab.c*/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/a.c*/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/.c*/I +Capturing subpattern count = 0 +No options +No first char +No need char + +/ac*/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/(a.c*|b.c*)/I +Capturing subpattern count = 1 +No options +No first char +No need char + +/a.c*|aba/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/.+a/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'a' + +/(?=abcda)a.*/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'a' + +/(?=a)a.*/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/a(b)*/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/a\d*/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/ab\d*/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/a(\d)*/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/abcde{0,0}/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'd' + +/ab\d+/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/a(?(1)b)(.)/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'a' +No need char + +/a(?(1)bag|big)(.)/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'a' +Need char = 'g' + +/a(?(1)bag|big)*(.)/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'a' +No need char + +/a(?(1)bag|big)+(.)/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'a' +Need char = 'g' + +/a(?(1)b..|b..)(.)/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'a' +Need char = 'b' + +/ab\d{0}e/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'e' + +/a?b?/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + a + 0: a + b + 0: b + ab + 0: ab + \ + 0: + *** Failers + 0: + \N +No match + +/|-/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + abcd + 0: + -abc + 0: + \Nab-c + 0: - + *** Failers + 0: + \Nabc +No match + +/^.?abcd/IS +Capturing subpattern count = 0 +Options: anchored +No first char +Need char = 'd' +Subject length lower bound = 4 +No starting char list + +/\( # ( at start + (?: # Non-capturing bracket + (?>[^()]+) # Either a sequence of non-brackets (no backtracking) + | # Or + (?R) # Recurse - i.e. nested bracketed string + )* # Zero or more contents + \) # Closing ) + /Ix +Capturing subpattern count = 0 +Options: extended +First char = '(' +Need char = ')' + (abcd) + 0: (abcd) + (abcd)xyz + 0: (abcd) + xyz(abcd) + 0: (abcd) + (ab(xy)cd)pqr + 0: (ab(xy)cd) + (ab(xycd)pqr + 0: (xycd) + () abc () + 0: () + 12(abcde(fsh)xyz(foo(bar))lmno)89 + 0: (abcde(fsh)xyz(foo(bar))lmno) + *** Failers +No match + abcd +No match + abcd) +No match + (abcd +No match + +/\( ( (?>[^()]+) | (?R) )* \) /Ixg +Capturing subpattern count = 1 +Options: extended +First char = '(' +Need char = ')' + (ab(xy)cd)pqr + 0: (ab(xy)cd) + 1: cd + 1(abcd)(x(y)z)pqr + 0: (abcd) + 1: abcd + 0: (x(y)z) + 1: z + +/\( (?: (?>[^()]+) | (?R) ) \) /Ix +Capturing subpattern count = 0 +Options: extended +First char = '(' +Need char = ')' + (abcd) + 0: (abcd) + (ab(xy)cd) + 0: (xy) + (a(b(c)d)e) + 0: (c) + ((ab)) + 0: ((ab)) + *** Failers +No match + () +No match + +/\( (?: (?>[^()]+) | (?R) )? \) /Ix +Capturing subpattern count = 0 +Options: extended +First char = '(' +Need char = ')' + () + 0: () + 12(abcde(fsh)xyz(foo(bar))lmno)89 + 0: (fsh) + +/\( ( (?>[^()]+) | (?R) )* \) /Ix +Capturing subpattern count = 1 +Options: extended +First char = '(' +Need char = ')' + (ab(xy)cd) + 0: (ab(xy)cd) + 1: cd + +/\( ( ( (?>[^()]+) | (?R) )* ) \) /Ix +Capturing subpattern count = 2 +Options: extended +First char = '(' +Need char = ')' + (ab(xy)cd) + 0: (ab(xy)cd) + 1: ab(xy)cd + 2: cd + +/\( (123)? ( ( (?>[^()]+) | (?R) )* ) \) /Ix +Capturing subpattern count = 3 +Options: extended +First char = '(' +Need char = ')' + (ab(xy)cd) + 0: (ab(xy)cd) + 1: <unset> + 2: ab(xy)cd + 3: cd + (123ab(xy)cd) + 0: (123ab(xy)cd) + 1: 123 + 2: ab(xy)cd + 3: cd + +/\( ( (123)? ( (?>[^()]+) | (?R) )* ) \) /Ix +Capturing subpattern count = 3 +Options: extended +First char = '(' +Need char = ')' + (ab(xy)cd) + 0: (ab(xy)cd) + 1: ab(xy)cd + 2: <unset> + 3: cd + (123ab(xy)cd) + 0: (123ab(xy)cd) + 1: 123ab(xy)cd + 2: 123 + 3: cd + +/\( (((((((((( ( (?>[^()]+) | (?R) )* )))))))))) \) /Ix +Capturing subpattern count = 11 +Options: extended +First char = '(' +Need char = ')' + (ab(xy)cd) + 0: (ab(xy)cd) + 1: ab(xy)cd + 2: ab(xy)cd + 3: ab(xy)cd + 4: ab(xy)cd + 5: ab(xy)cd + 6: ab(xy)cd + 7: ab(xy)cd + 8: ab(xy)cd + 9: ab(xy)cd +10: ab(xy)cd +11: cd + +/\( ( ( (?>[^()<>]+) | ((?>[^()]+)) | (?R) )* ) \) /Ix +Capturing subpattern count = 3 +Options: extended +First char = '(' +Need char = ')' + (abcd(xyz<p>qrs)123) + 0: (abcd(xyz<p>qrs)123) + 1: abcd(xyz<p>qrs)123 + 2: 123 + +/\( ( ( (?>[^()]+) | ((?R)) )* ) \) /Ix +Capturing subpattern count = 3 +Options: extended +First char = '(' +Need char = ')' + (ab(cd)ef) + 0: (ab(cd)ef) + 1: ab(cd)ef + 2: ef + 3: (cd) + (ab(cd(ef)gh)ij) + 0: (ab(cd(ef)gh)ij) + 1: ab(cd(ef)gh)ij + 2: ij + 3: (cd(ef)gh) + +/^[[:alnum:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [0-9A-Za-z] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:^alnum:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x00-/:-@[-`{-\xff] (neg) + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:alpha:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [A-Za-z] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:^alpha:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x00-@[-`{-\xff] (neg) + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/[_[:alpha:]]/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z + _ a b c d e f g h i j k l m n o p q r s t u v w x y z + +/^[[:ascii:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x00-\x7f] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:^ascii:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x80-\xff] (neg) + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:blank:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x09 ] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:^blank:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x00-\x08\x0a-\x1f!-\xff] (neg) + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/[\n\x0b\x0c\x0d[:blank:]]/IS +Capturing subpattern count = 0 +Contains explicit CR or LF match +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 + +/^[[:cntrl:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x00-\x1f\x7f] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:digit:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [0-9] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:graph:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [!-~] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:lower:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [a-z] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:print:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [ -~] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:punct:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [!-/:-@[-`{-~] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:space:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x09-\x0d ] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:upper:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [A-Z] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:xdigit:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [0-9A-Fa-f] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:word:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [0-9A-Z_a-z] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:^cntrl:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [ -~\x80-\xff] (neg) + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[12[:^digit:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x00-/12:-\xff] (neg) + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/^[[:^blank:]]/DZ +------------------------------------------------------------------ + Bra + ^ + [\x00-\x08\x0a-\x1f!-\xff] (neg) + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/[01[:alpha:]%]/DZ +------------------------------------------------------------------ + Bra + [%01A-Za-z] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +No need char + +/[[.ch.]]/I +Failed: POSIX collating elements are not supported at offset 1 + +/[[=ch=]]/I +Failed: POSIX collating elements are not supported at offset 1 + +/[[:rhubarb:]]/I +Failed: unknown POSIX class name at offset 3 + +/[[:upper:]]/Ii +Capturing subpattern count = 0 +Options: caseless +No first char +No need char + A + 0: A + a + 0: a + +/[[:lower:]]/Ii +Capturing subpattern count = 0 +Options: caseless +No first char +No need char + A + 0: A + a + 0: a + +/((?-i)[[:lower:]])[[:lower:]]/Ii +Capturing subpattern count = 1 +Options: caseless +No first char +No need char + ab + 0: ab + 1: a + aB + 0: aB + 1: a + *** Failers + 0: ai + 1: a + Ab +No match + AB +No match + +/[\200-\110]/I +Failed: range out of order in character class at offset 9 + +/^(?(0)f|b)oo/I +Failed: invalid condition (?(0) at offset 6 + +/This one's here because of the large output vector needed/I +Capturing subpattern count = 0 +No options +First char = 'T' +Need char = 'd' + +/(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\w+)\s+(\270)/I +Capturing subpattern count = 271 +Max back reference = 270 +No options +No first char +No need char + \O900 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ABC ABC + 0: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ABC ABC + 1: 1 + 2: 2 + 3: 3 + 4: 4 + 5: 5 + 6: 6 + 7: 7 + 8: 8 + 9: 9 +10: 10 +11: 11 +12: 12 +13: 13 +14: 14 +15: 15 +16: 16 +17: 17 +18: 18 +19: 19 +20: 20 +21: 21 +22: 22 +23: 23 +24: 24 +25: 25 +26: 26 +27: 27 +28: 28 +29: 29 +30: 30 +31: 31 +32: 32 +33: 33 +34: 34 +35: 35 +36: 36 +37: 37 +38: 38 +39: 39 +40: 40 +41: 41 +42: 42 +43: 43 +44: 44 +45: 45 +46: 46 +47: 47 +48: 48 +49: 49 +50: 50 +51: 51 +52: 52 +53: 53 +54: 54 +55: 55 +56: 56 +57: 57 +58: 58 +59: 59 +60: 60 +61: 61 +62: 62 +63: 63 +64: 64 +65: 65 +66: 66 +67: 67 +68: 68 +69: 69 +70: 70 +71: 71 +72: 72 +73: 73 +74: 74 +75: 75 +76: 76 +77: 77 +78: 78 +79: 79 +80: 80 +81: 81 +82: 82 +83: 83 +84: 84 +85: 85 +86: 86 +87: 87 +88: 88 +89: 89 +90: 90 +91: 91 +92: 92 +93: 93 +94: 94 +95: 95 +96: 96 +97: 97 +98: 98 +99: 99 +100: 100 +101: 101 +102: 102 +103: 103 +104: 104 +105: 105 +106: 106 +107: 107 +108: 108 +109: 109 +110: 110 +111: 111 +112: 112 +113: 113 +114: 114 +115: 115 +116: 116 +117: 117 +118: 118 +119: 119 +120: 120 +121: 121 +122: 122 +123: 123 +124: 124 +125: 125 +126: 126 +127: 127 +128: 128 +129: 129 +130: 130 +131: 131 +132: 132 +133: 133 +134: 134 +135: 135 +136: 136 +137: 137 +138: 138 +139: 139 +140: 140 +141: 141 +142: 142 +143: 143 +144: 144 +145: 145 +146: 146 +147: 147 +148: 148 +149: 149 +150: 150 +151: 151 +152: 152 +153: 153 +154: 154 +155: 155 +156: 156 +157: 157 +158: 158 +159: 159 +160: 160 +161: 161 +162: 162 +163: 163 +164: 164 +165: 165 +166: 166 +167: 167 +168: 168 +169: 169 +170: 170 +171: 171 +172: 172 +173: 173 +174: 174 +175: 175 +176: 176 +177: 177 +178: 178 +179: 179 +180: 180 +181: 181 +182: 182 +183: 183 +184: 184 +185: 185 +186: 186 +187: 187 +188: 188 +189: 189 +190: 190 +191: 191 +192: 192 +193: 193 +194: 194 +195: 195 +196: 196 +197: 197 +198: 198 +199: 199 +200: 200 +201: 201 +202: 202 +203: 203 +204: 204 +205: 205 +206: 206 +207: 207 +208: 208 +209: 209 +210: 210 +211: 211 +212: 212 +213: 213 +214: 214 +215: 215 +216: 216 +217: 217 +218: 218 +219: 219 +220: 220 +221: 221 +222: 222 +223: 223 +224: 224 +225: 225 +226: 226 +227: 227 +228: 228 +229: 229 +230: 230 +231: 231 +232: 232 +233: 233 +234: 234 +235: 235 +236: 236 +237: 237 +238: 238 +239: 239 +240: 240 +241: 241 +242: 242 +243: 243 +244: 244 +245: 245 +246: 246 +247: 247 +248: 248 +249: 249 +250: 250 +251: 251 +252: 252 +253: 253 +254: 254 +255: 255 +256: 256 +257: 257 +258: 258 +259: 259 +260: 260 +261: 261 +262: 262 +263: 263 +264: 264 +265: 265 +266: 266 +267: 267 +268: 268 +269: 269 +270: ABC +271: ABC + +/This one's here because Perl does this differently and PCRE can't at present/I +Capturing subpattern count = 0 +No options +First char = 'T' +Need char = 't' + +/(main(O)?)+/I +Capturing subpattern count = 2 +No options +First char = 'm' +Need char = 'n' + mainmain + 0: mainmain + 1: main + mainOmain + 0: mainOmain + 1: main + 2: O + +/These are all cases where Perl does it differently (nested captures)/I +Capturing subpattern count = 1 +No options +First char = 'T' +Need char = 's' + +/^(a(b)?)+$/I +Capturing subpattern count = 2 +Options: anchored +No first char +No need char + aba + 0: aba + 1: a + 2: b + +/^(aa(bb)?)+$/I +Capturing subpattern count = 2 +Options: anchored +No first char +No need char + aabbaa + 0: aabbaa + 1: aa + 2: bb + +/^(aa|aa(bb))+$/I +Capturing subpattern count = 2 +Options: anchored +No first char +No need char + aabbaa + 0: aabbaa + 1: aa + 2: bb + +/^(aa(bb)??)+$/I +Capturing subpattern count = 2 +Options: anchored +No first char +No need char + aabbaa + 0: aabbaa + 1: aa + 2: bb + +/^(?:aa(bb)?)+$/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + aabbaa + 0: aabbaa + 1: bb + +/^(aa(b(b))?)+$/I +Capturing subpattern count = 3 +Options: anchored +No first char +No need char + aabbaa + 0: aabbaa + 1: aa + 2: bb + 3: b + +/^(?:aa(b(b))?)+$/I +Capturing subpattern count = 2 +Options: anchored +No first char +No need char + aabbaa + 0: aabbaa + 1: bb + 2: b + +/^(?:aa(b(?:b))?)+$/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + aabbaa + 0: aabbaa + 1: bb + +/^(?:aa(bb(?:b))?)+$/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + aabbbaa + 0: aabbbaa + 1: bbb + +/^(?:aa(b(?:bb))?)+$/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + aabbbaa + 0: aabbbaa + 1: bbb + +/^(?:aa(?:b(b))?)+$/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + aabbaa + 0: aabbaa + 1: b + +/^(?:aa(?:b(bb))?)+$/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + aabbbaa + 0: aabbbaa + 1: bb + +/^(aa(b(bb))?)+$/I +Capturing subpattern count = 3 +Options: anchored +No first char +No need char + aabbbaa + 0: aabbbaa + 1: aa + 2: bbb + 3: bb + +/^(aa(bb(bb))?)+$/I +Capturing subpattern count = 3 +Options: anchored +No first char +No need char + aabbbbaa + 0: aabbbbaa + 1: aa + 2: bbbb + 3: bb + +/--------------------------------------------------------------------/I +Capturing subpattern count = 0 +No options +First char = '-' +Need char = '-' + +/#/IxDZ +------------------------------------------------------------------ + Bra + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +May match empty string +Options: extended +No first char +No need char + +/a#/IxDZ +------------------------------------------------------------------ + Bra + a + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: extended +First char = 'a' +No need char + +/[\s]/DZ +------------------------------------------------------------------ + Bra + [\x09-\x0d ] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +No need char + +/[\S]/DZ +------------------------------------------------------------------ + Bra + [\x00-\x08\x0e-\x1f!-\xff] (neg) + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +No need char + +/a(?i)b/DZ +------------------------------------------------------------------ + Bra + a + /i b + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' (caseless) + ab + 0: ab + aB + 0: aB + *** Failers +No match + AB +No match + +/(a(?i)b)/DZ +------------------------------------------------------------------ + Bra + CBra 1 + a + /i b + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'b' (caseless) + ab + 0: ab + 1: ab + aB + 0: aB + 1: aB + *** Failers +No match + AB +No match + +/ (?i)abc/IxDZ +------------------------------------------------------------------ + Bra + /i abc + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: extended +First char = 'a' (caseless) +Need char = 'c' (caseless) + +/#this is a comment + (?i)abc/IxDZ +------------------------------------------------------------------ + Bra + /i abc + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: extended +First char = 'a' (caseless) +Need char = 'c' (caseless) + +/123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/DZ +------------------------------------------------------------------ + Bra + 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = '1' +Need char = '0' + +/\Q123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/DZ +------------------------------------------------------------------ + Bra + 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = '1' +Need char = '0' + +/\Q\E/DZ +------------------------------------------------------------------ + Bra + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + \ + 0: + +/\Q\Ex/DZ +------------------------------------------------------------------ + Bra + x + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'x' +No need char + +/ \Q\E/DZ +------------------------------------------------------------------ + Bra + + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = ' ' +No need char + +/a\Q\E/DZ +------------------------------------------------------------------ + Bra + a + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + abc + 0: a + bca + 0: a + bac + 0: a + +/a\Q\Eb/DZ +------------------------------------------------------------------ + Bra + ab + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + abc + 0: ab + +/\Q\Eabc/DZ +------------------------------------------------------------------ + Bra + abc + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' + +/x*+\w/DZ +------------------------------------------------------------------ + Bra + x*+ + \w + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +No need char + *** Failers + 0: F + xxxxx +No match + +/x?+/DZ +------------------------------------------------------------------ + Bra + x?+ + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + +/x++/DZ +------------------------------------------------------------------ + Bra + x++ + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'x' +No need char + +/x{1,3}+/BZO +------------------------------------------------------------------ + Bra + x + x{0,2}+ + Ket + End +------------------------------------------------------------------ + +/x{1,3}+/BZOi +------------------------------------------------------------------ + Bra + /i x + /i x{0,2}+ + Ket + End +------------------------------------------------------------------ + +/[^x]{1,3}+/BZO +------------------------------------------------------------------ + Bra + [^x] + [^x]{0,2}+ + Ket + End +------------------------------------------------------------------ + +/[^x]{1,3}+/BZOi +------------------------------------------------------------------ + Bra + /i [^x] + /i [^x]{0,2}+ + Ket + End +------------------------------------------------------------------ + +/(x)*+/DZ +------------------------------------------------------------------ + Bra + Braposzero + CBraPos 1 + x + KetRpos + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +May match empty string +No options +No first char +No need char + +/^(\w++|\s++)*$/I +Capturing subpattern count = 1 +May match empty string +Options: anchored +No first char +No need char + now is the time for all good men to come to the aid of the party + 0: now is the time for all good men to come to the aid of the party + 1: party + *** Failers +No match + this is not a line with only words and spaces! +No match + +/(\d++)(\w)/I +Capturing subpattern count = 2 +No options +No first char +No need char + 12345a + 0: 12345a + 1: 12345 + 2: a + *** Failers +No match + 12345+ +No match + +/a++b/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + aaab + 0: aaab + +/(a++b)/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'b' + aaab + 0: aaab + 1: aaab + +/(a++)b/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'b' + aaab + 0: aaab + 1: aaa + +/([^()]++|\([^()]*\))+/I +Capturing subpattern count = 1 +No options +No first char +No need char + ((abc(ade)ufh()()x + 0: abc(ade)ufh()()x + 1: x + +/\(([^()]++|\([^()]+\))+\)/I +Capturing subpattern count = 1 +No options +First char = '(' +Need char = ')' + (abc) + 0: (abc) + 1: abc + (abc(def)xyz) + 0: (abc(def)xyz) + 1: xyz + *** Failers +No match + ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +No match + +/(abc){1,3}+/DZ +------------------------------------------------------------------ + Bra + Once + CBra 1 + abc + Ket + Brazero + Bra + CBra 1 + abc + Ket + Brazero + CBra 1 + abc + Ket + Ket + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'c' + +/a+?+/I +Failed: nothing to repeat at offset 3 + +/a{2,3}?+b/I +Failed: nothing to repeat at offset 7 + +/(?U)a+?+/I +Failed: nothing to repeat at offset 7 + +/a{2,3}?+b/IU +Failed: nothing to repeat at offset 7 + +/x(?U)a++b/DZ +------------------------------------------------------------------ + Bra + x + a++ + b + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'x' +Need char = 'b' + xaaaab + 0: xaaaab + +/(?U)xa++b/DZ +------------------------------------------------------------------ + Bra + x + a++ + b + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'x' +Need char = 'b' + xaaaab + 0: xaaaab + +/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/DZ +------------------------------------------------------------------ + Bra + ^ + CBra 1 + CBra 2 + a+ + Ket + CBra 3 + [ab]+? + Ket + CBra 4 + [bc]+ + Ket + CBra 5 + \w*+ + Ket + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 5 +Options: anchored +No first char +No need char + +/^x(?U)a+b/DZ +------------------------------------------------------------------ + Bra + ^ + x + a++ + b + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +Need char = 'b' + +/^x(?U)(a+)b/DZ +------------------------------------------------------------------ + Bra + ^ + x + CBra 1 + a+? + Ket + b + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Options: anchored +No first char +Need char = 'b' + +/[.x.]/I +Failed: POSIX collating elements are not supported at offset 0 + +/[=x=]/I +Failed: POSIX collating elements are not supported at offset 0 + +/[:x:]/I +Failed: POSIX named classes are supported only within a class at offset 0 + +/\l/I +Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 + +/\L/I +Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 + +/\N{name}/I +Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 + +/\u/I +Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 + +/\U/I +Failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 1 + +/a{1,3}b/U + ab + 0: ab + +/[/I +Failed: missing terminating ] for character class at offset 1 + +/[a-/I +Failed: missing terminating ] for character class at offset 3 + +/[[:space:]/I +Failed: missing terminating ] for character class at offset 10 + +/[\s]/IDZ +------------------------------------------------------------------ + Bra + [\x09-\x0d ] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +No need char + +/[[:space:]]/IDZ +------------------------------------------------------------------ + Bra + [\x09-\x0d ] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +No need char + +/[[:space:]abcde]/IDZ +------------------------------------------------------------------ + Bra + [\x09-\x0d a-e] + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +No need char + +/< (?: (?(R) \d++ | [^<>]*+) | (?R)) * >/Ix +Capturing subpattern count = 0 +Options: extended +First char = '<' +Need char = '>' + <> + 0: <> + <abcd> + 0: <abcd> + <abc <123> hij> + 0: <abc <123> hij> + <abc <def> hij> + 0: <def> + <abc<>def> + 0: <abc<>def> + <abc<> + 0: <> + *** Failers +No match + <abc +No match + +|8J\$WE\<\.rX\+ix\[d1b\!H\#\?vV0vrK\:ZH1\=2M\>iV\;\?aPhFB\<\*vW\@QW\@sO9\}cfZA\-i\'w\%hKd6gt1UJP\,15_\#QY\$M\^Mss_U\/\]\&LK9\[5vQub\^w\[KDD\<EjmhUZ\?\.akp2dF\>qmj\;2\}YWFdYx\.Ap\]hjCPTP\(n28k\+3\;o\&WXqs\/gOXdr\$\:r\'do0\;b4c\(f_Gr\=\"\\4\)\[01T7ajQJvL\$W\~mL_sS\/4h\:x\*\[ZN\=KLs\&L5zX\/\/\>it\,o\:aU\(\;Z\>pW\&T7oP\'2K\^E\:x9\'c\[\%z\-\,64JQ5AeH_G\#KijUKghQw\^\\vea3a\?kka_G\$8\#\`\*kynsxzBLru\'\]k_\[7FrVx\}\^\=\$blx\>s\-N\%j\;D\*aZDnsw\:YKZ\%Q\.Kne9\#hP\?\+b3\(SOvL\,\^\;\&u5\@\?5C5Bhb\=m\-vEh_L15Jl\]U\)0RP6\{q\%L\^_z5E\'Dw6X\b|IDZ +------------------------------------------------------------------ + Bra + 8J$WE<.rX+ix[d1b!H#?vV0vrK:ZH1=2M>iV;?aPhFB<*vW@QW@sO9}cfZA-i'w%hKd6gt1UJP,15_#QY$M^Mss_U/]&LK9[5vQub^w[KDD<EjmhUZ?.akp2dF>qmj;2}YWFdYx.Ap]hjCPTP(n28k+3;o&WXqs/gOXdr$:r'do0;b4c(f_Gr="\4)[01T7ajQJvL$W~mL_sS/4h:x*[ZN=KLs&L5zX//>it,o:aU(;Z>pW&T7oP'2K^E:x9'c[%z-,64JQ5AeH_G#KijUKghQw^\vea3a?kka_G$8#`*kynsxzBLru']k_[7FrVx}^=$blx>s-N%j;D*aZDnsw:YKZ%Q.Kne9#hP?+b3(SOvL,^;&u5@?5C5Bhb=m-vEh_L15Jl]U)0RP6{q%L^_z5E'Dw6X + \b + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +First char = '8' +Need char = 'X' + +|\$\<\.X\+ix\[d1b\!H\#\?vV0vrK\:ZH1\=2M\>iV\;\?aPhFB\<\*vW\@QW\@sO9\}cfZA\-i\'w\%hKd6gt1UJP\,15_\#QY\$M\^Mss_U\/\]\&LK9\[5vQub\^w\[KDD\<EjmhUZ\?\.akp2dF\>qmj\;2\}YWFdYx\.Ap\]hjCPTP\(n28k\+3\;o\&WXqs\/gOXdr\$\:r\'do0\;b4c\(f_Gr\=\"\\4\)\[01T7ajQJvL\$W\~mL_sS\/4h\:x\*\[ZN\=KLs\&L5zX\/\/\>it\,o\:aU\(\;Z\>pW\&T7oP\'2K\^E\:x9\'c\[\%z\-\,64JQ5AeH_G\#KijUKghQw\^\\vea3a\?kka_G\$8\#\`\*kynsxzBLru\'\]k_\[7FrVx\}\^\=\$blx\>s\-N\%j\;D\*aZDnsw\:YKZ\%Q\.Kne9\#hP\?\+b3\(SOvL\,\^\;\&u5\@\?5C5Bhb\=m\-vEh_L15Jl\]U\)0RP6\{q\%L\^_z5E\'Dw6X\b|IDZ +------------------------------------------------------------------ + Bra + $<.X+ix[d1b!H#?vV0vrK:ZH1=2M>iV;?aPhFB<*vW@QW@sO9}cfZA-i'w%hKd6gt1UJP,15_#QY$M^Mss_U/]&LK9[5vQub^w[KDD<EjmhUZ?.akp2dF>qmj;2}YWFdYx.Ap]hjCPTP(n28k+3;o&WXqs/gOXdr$:r'do0;b4c(f_Gr="\4)[01T7ajQJvL$W~mL_sS/4h:x*[ZN=KLs&L5zX//>it,o:aU(;Z>pW&T7oP'2K^E:x9'c[%z-,64JQ5AeH_G#KijUKghQw^\vea3a?kka_G$8#`*kynsxzBLru']k_[7FrVx}^=$blx>s-N%j;D*aZDnsw:YKZ%Q.Kne9#hP?+b3(SOvL,^;&u5@?5C5Bhb=m-vEh_L15Jl]U)0RP6{q%L^_z5E'Dw6X + \b + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +First char = '$' +Need char = 'X' + +/(.*)\d+\1/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +No need char + +/(.*)\d+/I +Capturing subpattern count = 1 +No options +First char at start or follows newline +No need char + +/(.*)\d+\1/Is +Capturing subpattern count = 1 +Max back reference = 1 +Options: dotall +No first char +No need char + +/(.*)\d+/Is +Capturing subpattern count = 1 +Options: anchored dotall +No first char +No need char + +/(.*(xyz))\d+\2/I +Capturing subpattern count = 2 +Max back reference = 2 +No options +First char at start or follows newline +Need char = 'z' + +/((.*))\d+\1/I +Capturing subpattern count = 2 +Max back reference = 1 +No options +No first char +No need char + abc123bc + 0: bc123bc + 1: bc + 2: bc + +/a[b]/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/(?=a).*/I +Capturing subpattern count = 0 +May match empty string +No options +First char = 'a' +No need char + +/(?=abc).xyz/IiI +Capturing subpattern count = 0 +Options: caseless +First char = 'a' (caseless) +Need char = 'z' (caseless) + +/(?=abc)(?i).xyz/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'z' (caseless) + +/(?=a)(?=b)/I +Capturing subpattern count = 0 +May match empty string +No options +First char = 'a' +No need char + +/(?=.)a/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/((?=abcda)a)/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'a' + +/((?=abcda)ab)/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'b' + +/()a/I +Capturing subpattern count = 1 +No options +No first char +Need char = 'a' + +/(?(1)ab|ac)(.)/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'a' +No need char + +/(?(1)abz|acz)(.)/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'a' +Need char = 'z' + +/(?(1)abz)(.)/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +No need char + +/(?(1)abz)(1)23/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +Need char = '3' + +/(a)+/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/(a){2,3}/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'a' + +/(a)*/I +Capturing subpattern count = 1 +May match empty string +No options +No first char +No need char + +/[a]/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/[ab]/I +Capturing subpattern count = 0 +No options +No first char +No need char + +/[ab]/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b + +/[^a]/I +Capturing subpattern count = 0 +No options +No first char +No need char + +/\d456/I +Capturing subpattern count = 0 +No options +No first char +Need char = '6' + +/\d456/IS +Capturing subpattern count = 0 +No options +No first char +Need char = '6' +Subject length lower bound = 4 +Starting chars: 0 1 2 3 4 5 6 7 8 9 + +/a^b/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/^a/Im +Capturing subpattern count = 0 +Options: multiline +First char at start or follows newline +Need char = 'a' + abcde + 0: a + xy\nabc + 0: a + *** Failers +No match + xyabc +No match + +/c|abc/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'c' + +/(?i)[ab]/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: A B a b + +/[ab](?i)cd/IS +Capturing subpattern count = 0 +No options +No first char +Need char = 'd' (caseless) +Subject length lower bound = 3 +Starting chars: a b + +/abc(?C)def/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'f' + abcdef +--->abcdef + 0 ^ ^ d + 0: abcdef + 1234abcdef +--->1234abcdef + 0 ^ ^ d + 0: abcdef + *** Failers +No match + abcxyz +No match + abcxyzf +--->abcxyzf + 0 ^ ^ d +No match + +/abc(?C)de(?C1)f/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'f' + 123abcdef +--->123abcdef + 0 ^ ^ d + 1 ^ ^ f + 0: abcdef + +/(?C1)\dabc(?C2)def/IS +Capturing subpattern count = 0 +No options +No first char +Need char = 'f' +Subject length lower bound = 7 +Starting chars: 0 1 2 3 4 5 6 7 8 9 + 1234abcdef +--->1234abcdef + 1 ^ \d + 1 ^ \d + 1 ^ \d + 1 ^ \d + 2 ^ ^ d + 0: 4abcdef + *** Failers +No match + abcdef +No match + +/(?C1)\dabc(?C2)def/ISS +Capturing subpattern count = 0 +No options +No first char +Need char = 'f' + 1234abcdef +--->1234abcdef + 1 ^ \d + 1 ^ \d + 1 ^ \d + 1 ^ \d + 2 ^ ^ d + 0: 4abcdef + *** Failers +No match + abcdef +--->abcdef + 1 ^ \d + 1 ^ \d + 1 ^ \d + 1 ^ \d + 1 ^ \d + 1 ^ \d +No match + +/(?C255)ab/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'b' + +/(?C256)ab/I +Failed: number after (?C is > 255 at offset 6 + +/(?Cab)xx/I +Failed: closing ) for (?C expected at offset 3 + +/(?C12vr)x/I +Failed: closing ) for (?C expected at offset 5 + +/abc(?C)def/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'f' + *** Failers +No match + \x83\x0\x61bcdef +--->\x83\x00abcdef + 0 ^ ^ d + 0: abcdef + +/(abc)(?C)de(?C1)f/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'f' + 123abcdef +--->123abcdef + 0 ^ ^ d + 1 ^ ^ f + 0: abcdef + 1: abc + 123abcdef\C+ +Callout 0: last capture = 1 + 0: <unset> + 1: abc +--->123abcdef + ^ ^ d +Callout 1: last capture = 1 + 0: <unset> + 1: abc +--->123abcdef + ^ ^ f + 0: abcdef + 1: abc + 123abcdef\C- + 0: abcdef + 1: abc + *** Failers +No match + 123abcdef\C!1 +--->123abcdef + 0 ^ ^ d + 1 ^ ^ f +No match + +/(?C0)(abc(?C1))*/I +Capturing subpattern count = 1 +May match empty string +No options +No first char +No need char + abcabcabc +--->abcabcabc + 0 ^ (abc(?C1))* + 1 ^ ^ ) + 1 ^ ^ ) + 1 ^ ^ ) + 0: abcabcabc + 1: abc + abcabc\C!1!3 +--->abcabc + 0 ^ (abc(?C1))* + 1 ^ ^ ) + 1 ^ ^ ) + 0: abcabc + 1: abc + *** Failers +--->*** Failers + 0 ^ (abc(?C1))* + 0: + abcabcabc\C!1!3 +--->abcabcabc + 0 ^ (abc(?C1))* + 1 ^ ^ ) + 1 ^ ^ ) + 1 ^ ^ ) + 0: abcabc + 1: abc + +/(\d{3}(?C))*/I +Capturing subpattern count = 1 +May match empty string +No options +No first char +No need char + 123\C+ +Callout 0: last capture = -1 + 0: <unset> +--->123 + ^ ^ ) + 0: 123 + 1: 123 + 123456\C+ +Callout 0: last capture = -1 + 0: <unset> +--->123456 + ^ ^ ) +Callout 0: last capture = 1 + 0: <unset> + 1: 123 +--->123456 + ^ ^ ) + 0: 123456 + 1: 456 + 123456789\C+ +Callout 0: last capture = -1 + 0: <unset> +--->123456789 + ^ ^ ) +Callout 0: last capture = 1 + 0: <unset> + 1: 123 +--->123456789 + ^ ^ ) +Callout 0: last capture = 1 + 0: <unset> + 1: 456 +--->123456789 + ^ ^ ) + 0: 123456789 + 1: 789 + +/((xyz)(?C)p|(?C1)xyzabc)/I +Capturing subpattern count = 2 +No options +First char = 'x' +No need char + xyzabc\C+ +Callout 0: last capture = 2 + 0: <unset> + 1: <unset> + 2: xyz +--->xyzabc + ^ ^ p +Callout 1: last capture = -1 + 0: <unset> +--->xyzabc + ^ x + 0: xyzabc + 1: xyzabc + +/(X)((xyz)(?C)p|(?C1)xyzabc)/I +Capturing subpattern count = 3 +No options +First char = 'X' +Need char = 'x' + Xxyzabc\C+ +Callout 0: last capture = 3 + 0: <unset> + 1: X + 2: <unset> + 3: xyz +--->Xxyzabc + ^ ^ p +Callout 1: last capture = 1 + 0: <unset> + 1: X +--->Xxyzabc + ^^ x + 0: Xxyzabc + 1: X + 2: xyzabc + +/(?=(abc))(?C)abcdef/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'f' + abcdef\C+ +Callout 0: last capture = 1 + 0: <unset> + 1: abc +--->abcdef + ^ a + 0: abcdef + 1: abc + +/(?!(abc)(?C1)d)(?C2)abcxyz/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'z' + abcxyz\C+ +Callout 1: last capture = 1 + 0: <unset> + 1: abc +--->abcxyz + ^ ^ d +Callout 2: last capture = -1 + 0: <unset> +--->abcxyz + ^ a + 0: abcxyz + +/(?<=(abc)(?C))xyz/I +Capturing subpattern count = 1 +Max lookbehind = 3 +No options +First char = 'x' +Need char = 'z' + abcxyz\C+ +Callout 0: last capture = 1 + 0: <unset> + 1: abc +--->abcxyz + ^ ) + 0: xyz + 1: abc + +/a(b+)(c*)(?C1)/I +Capturing subpattern count = 2 +No options +First char = 'a' +Need char = 'b' + abbbbbccc\C*1 +--->abbbbbccc + 1 ^ ^ +Callout data = 1 +No match + +/a(b+?)(c*?)(?C1)/I +Capturing subpattern count = 2 +No options +First char = 'a' +Need char = 'b' + abbbbbccc\C*1 +--->abbbbbccc + 1 ^ ^ +Callout data = 1 + 1 ^ ^ +Callout data = 1 + 1 ^ ^ +Callout data = 1 + 1 ^ ^ +Callout data = 1 + 1 ^ ^ +Callout data = 1 + 1 ^ ^ +Callout data = 1 + 1 ^ ^ +Callout data = 1 + 1 ^ ^ +Callout data = 1 +No match + +/(?C)abc/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' + +/(?C)^abc/I +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/(?C)a|b/IS +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b + +/(?R)/I +Failed: recursive call could loop indefinitely at offset 3 + +/(a|(?R))/I +Failed: recursive call could loop indefinitely at offset 6 + +/(ab|(bc|(de|(?R))))/I +Failed: recursive call could loop indefinitely at offset 15 + +/x(ab|(bc|(de|(?R))))/I +Capturing subpattern count = 3 +No options +First char = 'x' +No need char + xab + 0: xab + 1: ab + xbc + 0: xbc + 1: bc + 2: bc + xde + 0: xde + 1: de + 2: de + 3: de + xxab + 0: xxab + 1: xab + 2: xab + 3: xab + xxxab + 0: xxxab + 1: xxab + 2: xxab + 3: xxab + *** Failers +No match + xyab +No match + +/(ab|(bc|(de|(?1))))/I +Failed: recursive call could loop indefinitely at offset 15 + +/x(ab|(bc|(de|(?1)x)x)x)/I +Failed: recursive call could loop indefinitely at offset 16 + +/^([^()]|\((?1)*\))*$/I +Capturing subpattern count = 1 +May match empty string +Options: anchored +No first char +No need char + abc + 0: abc + 1: c + a(b)c + 0: a(b)c + 1: c + a(b(c))d + 0: a(b(c))d + 1: d + *** Failers) +No match + a(b(c)d +No match + +/^>abc>([^()]|\((?1)*\))*<xyz<$/I +Capturing subpattern count = 1 +Options: anchored +No first char +Need char = '<' + >abc>123<xyz< + 0: >abc>123<xyz< + 1: 3 + >abc>1(2)3<xyz< + 0: >abc>1(2)3<xyz< + 1: 3 + >abc>(1(2)3)<xyz< + 0: >abc>(1(2)3)<xyz< + 1: (1(2)3) + +/(a(?1)b)/DZ +------------------------------------------------------------------ + Bra + CBra 1 + a + Recurse + b + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'b' + +/(a(?1)+b)/DZ +------------------------------------------------------------------ + Bra + CBra 1 + a + Once + Recurse + KetRmax + b + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'b' + +/^(\d+|\((?1)([+*-])(?1)\)|-(?1))$/I +Capturing subpattern count = 2 +Options: anchored +No first char +No need char + 12 + 0: 12 + 1: 12 + (((2+2)*-3)-7) + 0: (((2+2)*-3)-7) + 1: (((2+2)*-3)-7) + 2: - + -12 + 0: -12 + 1: -12 + *** Failers +No match + ((2+2)*-3)-7) +No match + +/^(x(y|(?1){2})z)/I +Capturing subpattern count = 2 +Options: anchored +No first char +No need char + xyz + 0: xyz + 1: xyz + 2: y + xxyzxyzz + 0: xxyzxyzz + 1: xxyzxyzz + 2: xyzxyz + *** Failers +No match + xxyzz +No match + xxyzxyzxyzz +No match + +/((< (?: (?(R) \d++ | [^<>]*+) | (?2)) * >))/Ix +Capturing subpattern count = 2 +Options: extended +First char = '<' +Need char = '>' + <> + 0: <> + 1: <> + 2: <> + <abcd> + 0: <abcd> + 1: <abcd> + 2: <abcd> + <abc <123> hij> + 0: <abc <123> hij> + 1: <abc <123> hij> + 2: <abc <123> hij> + <abc <def> hij> + 0: <def> + 1: <def> + 2: <def> + <abc<>def> + 0: <abc<>def> + 1: <abc<>def> + 2: <abc<>def> + <abc<> + 0: <> + 1: <> + 2: <> + *** Failers +No match + <abc +No match + +/(?1)/I +Failed: reference to non-existent subpattern at offset 3 + +/((?2)(abc)/I +Failed: missing ) at offset 10 + +/^(abc)def(?1)/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + abcdefabc + 0: abcdefabc + 1: abc + +/^(a|b|c)=(?1)+/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + a=a + 0: a=a + 1: a + a=b + 0: a=b + 1: a + a=bc + 0: a=bc + 1: a + +/^(a|b|c)=((?1))+/I +Capturing subpattern count = 2 +Options: anchored +No first char +No need char + a=a + 0: a=a + 1: a + 2: a + a=b + 0: a=b + 1: a + 2: b + a=bc + 0: a=bc + 1: a + 2: c + +/a(?P<name1>b|c)d(?P<longername2>e)/DZ +------------------------------------------------------------------ + Bra + a + CBra 1 + b + Alt + c + Ket + d + CBra 2 + e + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 2 +Named capturing subpatterns: + longername2 2 + name1 1 +No options +First char = 'a' +Need char = 'e' + abde + 0: abde + 1: b + 2: e + acde + 0: acde + 1: c + 2: e + +/(?:a(?P<c>c(?P<d>d)))(?P<a>a)/DZ +------------------------------------------------------------------ + Bra + Bra + a + CBra 1 + c + CBra 2 + d + Ket + Ket + Ket + CBra 3 + a + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 3 +Named capturing subpatterns: + a 3 + c 1 + d 2 +No options +First char = 'a' +Need char = 'a' + +/(?P<a>a)...(?P=a)bbb(?P>a)d/DZ +------------------------------------------------------------------ + Bra + CBra 1 + a + Ket + Any + Any + Any + \1 + bbb + Recurse + d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Max back reference = 1 +Named capturing subpatterns: + a 1 +No options +First char = 'a' +Need char = 'd' + +/^\W*(?:(?P<one>(?P<two>.)\W*(?P>one)\W*(?P=two)|)|(?P<three>(?P<four>.)\W*(?P>three)\W*(?P=four)|\W*.\W*))\W*$/Ii +Capturing subpattern count = 4 +Max back reference = 4 +Named capturing subpatterns: + four 4 + one 1 + three 3 + two 2 +May match empty string +Options: anchored caseless +No first char +No need char + 1221 + 0: 1221 + 1: 1221 + 2: 1 + Satan, oscillate my metallic sonatas! + 0: Satan, oscillate my metallic sonatas! + 1: <unset> + 2: <unset> + 3: Satan, oscillate my metallic sonatas + 4: S + A man, a plan, a canal: Panama! + 0: A man, a plan, a canal: Panama! + 1: <unset> + 2: <unset> + 3: A man, a plan, a canal: Panama + 4: A + Able was I ere I saw Elba. + 0: Able was I ere I saw Elba. + 1: <unset> + 2: <unset> + 3: Able was I ere I saw Elba + 4: A + *** Failers +No match + The quick brown fox +No match + +/((?(R)a|b))\1(?1)?/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +No need char + bb + 0: bb + 1: b + bbaa + 0: bba + 1: b + +/(.*)a/Is +Capturing subpattern count = 1 +Options: anchored dotall +No first char +Need char = 'a' + +/(.*)a\1/Is +Capturing subpattern count = 1 +Max back reference = 1 +Options: dotall +No first char +Need char = 'a' + +/(.*)a(b)\2/Is +Capturing subpattern count = 2 +Max back reference = 2 +Options: anchored dotall +No first char +Need char = 'b' + +/((.*)a|(.*)b)z/Is +Capturing subpattern count = 3 +Options: anchored dotall +No first char +Need char = 'z' + +/((.*)a|(.*)b)z\1/Is +Capturing subpattern count = 3 +Max back reference = 1 +Options: dotall +No first char +Need char = 'z' + +/((.*)a|(.*)b)z\2/Is +Capturing subpattern count = 3 +Max back reference = 2 +Options: dotall +No first char +Need char = 'z' + +/((.*)a|(.*)b)z\3/Is +Capturing subpattern count = 3 +Max back reference = 3 +Options: dotall +No first char +Need char = 'z' + +/((.*)a|^(.*)b)z\3/Is +Capturing subpattern count = 3 +Max back reference = 3 +Options: anchored dotall +No first char +Need char = 'z' + +/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a/Is +Capturing subpattern count = 31 +May match empty string +Options: anchored dotall +No first char +No need char + +/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\31/Is +Capturing subpattern count = 31 +Max back reference = 31 +May match empty string +Options: dotall +No first char +No need char + +/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\32/Is +Capturing subpattern count = 32 +Max back reference = 32 +May match empty string +Options: dotall +No first char +No need char + +/(a)(bc)/INDZ +------------------------------------------------------------------ + Bra + Bra + a + Ket + Bra + bc + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: no_auto_capture +First char = 'a' +Need char = 'c' + abc + 0: abc + +/(?P<one>a)(bc)/INDZ +------------------------------------------------------------------ + Bra + CBra 1 + a + Ket + Bra + bc + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Named capturing subpatterns: + one 1 +Options: no_auto_capture +First char = 'a' +Need char = 'c' + abc + 0: abc + 1: a + +/(a)(?P<named>bc)/INDZ +------------------------------------------------------------------ + Bra + Bra + a + Ket + CBra 1 + bc + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Named capturing subpatterns: + named 1 +Options: no_auto_capture +First char = 'a' +Need char = 'c' + +/(a+)*zz/I +Capturing subpattern count = 1 +No options +No first char +Need char = 'z' + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazzbbbbbb\M +Minimum match() limit = 8 +Minimum match() recursion limit = 6 + 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazz + 1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaz\M +Minimum match() limit = 32768 +Minimum match() recursion limit = 29 +No match + +/(aaa(?C1)bbb|ab)/I +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'b' + aaabbb +--->aaabbb + 1 ^ ^ b + 0: aaabbb + 1: aaabbb + aaabbb\C*0 +--->aaabbb + 1 ^ ^ b + 0: aaabbb + 1: aaabbb + aaabbb\C*1 +--->aaabbb + 1 ^ ^ b +Callout data = 1 + 0: ab + 1: ab + aaabbb\C*-1 +--->aaabbb + 1 ^ ^ b +Callout data = -1 +No match + +/ab(?P<one>cd)ef(?P<two>gh)/I +Capturing subpattern count = 2 +Named capturing subpatterns: + one 1 + two 2 +No options +First char = 'a' +Need char = 'h' + abcdefgh + 0: abcdefgh + 1: cd + 2: gh + abcdefgh\C1\Gtwo + 0: abcdefgh + 1: cd + 2: gh + 1C cd (2) + G gh (2) two + abcdefgh\Cone\Ctwo + 0: abcdefgh + 1: cd + 2: gh + C cd (2) one + C gh (2) two + abcdefgh\Cthree +no parentheses with name "three" + 0: abcdefgh + 1: cd + 2: gh +copy substring three failed -7 + +/(?P<Tes>)(?P<Test>)/DZ +------------------------------------------------------------------ + Bra + CBra 1 + Ket + CBra 2 + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 2 +Named capturing subpatterns: + Tes 1 + Test 2 +May match empty string +No options +No first char +No need char + +/(?P<Test>)(?P<Tes>)/DZ +------------------------------------------------------------------ + Bra + CBra 1 + Ket + CBra 2 + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 2 +Named capturing subpatterns: + Tes 2 + Test 1 +May match empty string +No options +No first char +No need char + +/(?P<Z>zz)(?P<A>aa)/I +Capturing subpattern count = 2 +Named capturing subpatterns: + A 2 + Z 1 +No options +First char = 'z' +Need char = 'a' + zzaa\CZ + 0: zzaa + 1: zz + 2: aa + C zz (2) Z + zzaa\CA + 0: zzaa + 1: zz + 2: aa + C aa (2) A + +/(?P<x>eks)(?P<x>eccs)/I +Failed: two named subpatterns have the same name at offset 15 + +/(?P<abc>abc(?P<def>def)(?P<abc>xyz))/I +Failed: two named subpatterns have the same name at offset 30 + +"\[((?P<elem>\d+)(,(?P>elem))*)\]"I +Capturing subpattern count = 3 +Named capturing subpatterns: + elem 2 +No options +First char = '[' +Need char = ']' + [10,20,30,5,5,4,4,2,43,23,4234] + 0: [10,20,30,5,5,4,4,2,43,23,4234] + 1: 10,20,30,5,5,4,4,2,43,23,4234 + 2: 10 + 3: ,4234 + *** Failers +No match + [] +No match + +"\[((?P<elem>\d+)(,(?P>elem))*)?\]"I +Capturing subpattern count = 3 +Named capturing subpatterns: + elem 2 +No options +First char = '[' +Need char = ']' + [10,20,30,5,5,4,4,2,43,23,4234] + 0: [10,20,30,5,5,4,4,2,43,23,4234] + 1: 10,20,30,5,5,4,4,2,43,23,4234 + 2: 10 + 3: ,4234 + [] + 0: [] + +/(a(b(?2)c))?/DZ +------------------------------------------------------------------ + Bra + Brazero + CBra 1 + a + CBra 2 + b + Recurse + c + Ket + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 2 +May match empty string +No options +No first char +No need char + +/(a(b(?2)c))*/DZ +------------------------------------------------------------------ + Bra + Brazero + CBra 1 + a + CBra 2 + b + Recurse + c + Ket + KetRmax + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 2 +May match empty string +No options +No first char +No need char + +/(a(b(?2)c)){0,2}/DZ +------------------------------------------------------------------ + Bra + Brazero + Bra + CBra 1 + a + CBra 2 + b + Recurse + c + Ket + Ket + Brazero + CBra 1 + a + CBra 2 + b + Recurse + c + Ket + Ket + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 2 +May match empty string +No options +No first char +No need char + +/[ab]{1}+/DZ +------------------------------------------------------------------ + Bra + [ab]{1,1}+ + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +No need char + +/((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/Ii +Capturing subpattern count = 3 +Options: caseless +No first char +Need char = 'g' (caseless) + Baby Bjorn Active Carrier - With free SHIPPING!! + 0: Baby Bjorn Active Carrier - With free SHIPPING!! + 1: Baby Bjorn Active Carrier - With free SHIPPING!! + +/((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/IiS +Capturing subpattern count = 3 +Options: caseless +No first char +Need char = 'g' (caseless) +Subject length lower bound = 8 +No starting char list + Baby Bjorn Active Carrier - With free SHIPPING!! + 0: Baby Bjorn Active Carrier - With free SHIPPING!! + 1: Baby Bjorn Active Carrier - With free SHIPPING!! + +/a*.*b/ISDZ +------------------------------------------------------------------ + Bra + a* + Any* + b + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +Need char = 'b' +Subject length lower bound = 1 +No starting char list + +/(a|b)*.?c/ISDZ +------------------------------------------------------------------ + Bra + Brazero + CBra 1 + a + Alt + b + KetRmax + Any? + c + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +No options +No first char +Need char = 'c' +Subject length lower bound = 1 +No starting char list + +/abc(?C255)de(?C)f/DZ +------------------------------------------------------------------ + Bra + abc + Callout 255 10 1 + de + Callout 0 16 1 + f + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'f' + +/abcde/ICDZ +------------------------------------------------------------------ + Bra + Callout 255 0 1 + a + Callout 255 1 1 + b + Callout 255 2 1 + c + Callout 255 3 1 + d + Callout 255 4 1 + e + Callout 255 5 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: +First char = 'a' +Need char = 'e' + abcde +--->abcde + +0 ^ a + +1 ^^ b + +2 ^ ^ c + +3 ^ ^ d + +4 ^ ^ e + +5 ^ ^ + 0: abcde + abcdfe +--->abcdfe + +0 ^ a + +1 ^^ b + +2 ^ ^ c + +3 ^ ^ d + +4 ^ ^ e +No match + +/a*b/ICDZS +------------------------------------------------------------------ + Bra + Callout 255 0 2 + a*+ + Callout 255 2 1 + b + Callout 255 3 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: +No first char +Need char = 'b' +Subject length lower bound = 1 +Starting chars: a b + ab +--->ab + +0 ^ a* + +2 ^^ b + +3 ^ ^ + 0: ab + aaaab +--->aaaab + +0 ^ a* + +2 ^ ^ b + +3 ^ ^ + 0: aaaab + aaaacb +--->aaaacb + +0 ^ a* + +2 ^ ^ b + +0 ^ a* + +2 ^ ^ b + +0 ^ a* + +2 ^ ^ b + +0 ^ a* + +2 ^^ b + +0 ^ a* + +2 ^ b + +3 ^^ + 0: b + +/a*b/ICDZSS +------------------------------------------------------------------ + Bra + Callout 255 0 2 + a*+ + Callout 255 2 1 + b + Callout 255 3 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: +No first char +Need char = 'b' + ab +--->ab + +0 ^ a* + +2 ^^ b + +3 ^ ^ + 0: ab + aaaab +--->aaaab + +0 ^ a* + +2 ^ ^ b + +3 ^ ^ + 0: aaaab + aaaacb +--->aaaacb + +0 ^ a* + +2 ^ ^ b + +0 ^ a* + +2 ^ ^ b + +0 ^ a* + +2 ^ ^ b + +0 ^ a* + +2 ^^ b + +0 ^ a* + +2 ^ b + +0 ^ a* + +2 ^ b + +3 ^^ + 0: b + +/a+b/ICDZ +------------------------------------------------------------------ + Bra + Callout 255 0 2 + a++ + Callout 255 2 1 + b + Callout 255 3 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: +First char = 'a' +Need char = 'b' + ab +--->ab + +0 ^ a+ + +2 ^^ b + +3 ^ ^ + 0: ab + aaaab +--->aaaab + +0 ^ a+ + +2 ^ ^ b + +3 ^ ^ + 0: aaaab + aaaacb +--->aaaacb + +0 ^ a+ + +2 ^ ^ b + +0 ^ a+ + +2 ^ ^ b + +0 ^ a+ + +2 ^ ^ b + +0 ^ a+ + +2 ^^ b +No match + +/(abc|def)x/ICDZS +------------------------------------------------------------------ + Bra + Callout 255 0 9 + CBra 1 + Callout 255 1 1 + a + Callout 255 2 1 + b + Callout 255 3 1 + c + Callout 255 4 0 + Alt + Callout 255 5 1 + d + Callout 255 6 1 + e + Callout 255 7 1 + f + Callout 255 8 0 + Ket + Callout 255 9 1 + x + Callout 255 10 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Options: +No first char +Need char = 'x' +Subject length lower bound = 4 +Starting chars: a d + abcx +--->abcx + +0 ^ (abc|def) + +1 ^ a + +2 ^^ b + +3 ^ ^ c + +4 ^ ^ | + +9 ^ ^ x ++10 ^ ^ + 0: abcx + 1: abc + defx +--->defx + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +6 ^^ e + +7 ^ ^ f + +8 ^ ^ ) + +9 ^ ^ x ++10 ^ ^ + 0: defx + 1: def + ** Failers +No match + abcdefzx +--->abcdefzx + +0 ^ (abc|def) + +1 ^ a + +2 ^^ b + +3 ^ ^ c + +4 ^ ^ | + +9 ^ ^ x + +5 ^ d + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +6 ^^ e + +7 ^ ^ f + +8 ^ ^ ) + +9 ^ ^ x +No match + +/(abc|def)x/ICDZSS +------------------------------------------------------------------ + Bra + Callout 255 0 9 + CBra 1 + Callout 255 1 1 + a + Callout 255 2 1 + b + Callout 255 3 1 + c + Callout 255 4 0 + Alt + Callout 255 5 1 + d + Callout 255 6 1 + e + Callout 255 7 1 + f + Callout 255 8 0 + Ket + Callout 255 9 1 + x + Callout 255 10 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Options: +No first char +Need char = 'x' + abcx +--->abcx + +0 ^ (abc|def) + +1 ^ a + +2 ^^ b + +3 ^ ^ c + +4 ^ ^ | + +9 ^ ^ x ++10 ^ ^ + 0: abcx + 1: abc + defx +--->defx + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +6 ^^ e + +7 ^ ^ f + +8 ^ ^ ) + +9 ^ ^ x ++10 ^ ^ + 0: defx + 1: def + ** Failers +No match + abcdefzx +--->abcdefzx + +0 ^ (abc|def) + +1 ^ a + +2 ^^ b + +3 ^ ^ c + +4 ^ ^ | + +9 ^ ^ x + +5 ^ d + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +6 ^^ e + +7 ^ ^ f + +8 ^ ^ ) + +9 ^ ^ x + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +0 ^ (abc|def) + +1 ^ a + +5 ^ d + +0 ^ (abc|def) + +1 ^ a + +5 ^ d +No match + +/(ab|cd){3,4}/IC +Capturing subpattern count = 1 +Options: +No first char +No need char + ababab +--->ababab + +0 ^ (ab|cd){3,4} + +1 ^ a + +2 ^^ b + +3 ^ ^ | + +1 ^ ^ a + +2 ^ ^ b + +3 ^ ^ | + +1 ^ ^ a + +2 ^ ^ b + +3 ^ ^ | + +1 ^ ^ a + +4 ^ ^ c ++12 ^ ^ + 0: ababab + 1: ab + abcdabcd +--->abcdabcd + +0 ^ (ab|cd){3,4} + +1 ^ a + +2 ^^ b + +3 ^ ^ | + +1 ^ ^ a + +4 ^ ^ c + +5 ^ ^ d + +6 ^ ^ ) + +1 ^ ^ a + +2 ^ ^ b + +3 ^ ^ | + +1 ^ ^ a + +4 ^ ^ c + +5 ^ ^ d + +6 ^ ^ ) ++12 ^ ^ + 0: abcdabcd + 1: cd + abcdcdcdcdcd +--->abcdcdcdcdcd + +0 ^ (ab|cd){3,4} + +1 ^ a + +2 ^^ b + +3 ^ ^ | + +1 ^ ^ a + +4 ^ ^ c + +5 ^ ^ d + +6 ^ ^ ) + +1 ^ ^ a + +4 ^ ^ c + +5 ^ ^ d + +6 ^ ^ ) + +1 ^ ^ a + +4 ^ ^ c + +5 ^ ^ d + +6 ^ ^ ) ++12 ^ ^ + 0: abcdcdcd + 1: cd + +/([ab]{,4}c|xy)/ICDZS +------------------------------------------------------------------ + Bra + Callout 255 0 14 + CBra 1 + Callout 255 1 4 + [ab] + Callout 255 5 1 + { + Callout 255 6 1 + , + Callout 255 7 1 + 4 + Callout 255 8 1 + } + Callout 255 9 1 + c + Callout 255 10 0 + Alt + Callout 255 11 1 + x + Callout 255 12 1 + y + Callout 255 13 0 + Ket + Callout 255 14 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Options: +No first char +No need char +Subject length lower bound = 2 +Starting chars: a b x + Note: that { does NOT introduce a quantifier +--->Note: that { does NOT introduce a quantifier + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] + +5 ^^ { ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] + +5 ^^ { ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] + +5 ^^ { ++11 ^ x +No match + +/([ab]{,4}c|xy)/ICDZSS +------------------------------------------------------------------ + Bra + Callout 255 0 14 + CBra 1 + Callout 255 1 4 + [ab] + Callout 255 5 1 + { + Callout 255 6 1 + , + Callout 255 7 1 + 4 + Callout 255 8 1 + } + Callout 255 9 1 + c + Callout 255 10 0 + Alt + Callout 255 11 1 + x + Callout 255 12 1 + y + Callout 255 13 0 + Ket + Callout 255 14 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Options: +No first char +No need char + Note: that { does NOT introduce a quantifier +--->Note: that { does NOT introduce a quantifier + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] + +5 ^^ { ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] + +5 ^^ { ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] + +5 ^^ { ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x + +0 ^ ([ab]{,4}c|xy) + +1 ^ [ab] ++11 ^ x +No match + +/([ab]{1,4}c|xy){4,5}?123/ICDZ +------------------------------------------------------------------ + Bra + Callout 255 0 21 + CBra 1 + Callout 255 1 9 + [ab]{1,4}+ + Callout 255 10 1 + c + Callout 255 11 0 + Alt + Callout 255 12 1 + x + Callout 255 13 1 + y + Callout 255 14 0 + Ket + CBra 1 + Callout 255 1 9 + [ab]{1,4}+ + Callout 255 10 1 + c + Callout 255 11 0 + Alt + Callout 255 12 1 + x + Callout 255 13 1 + y + Callout 255 14 0 + Ket + CBra 1 + Callout 255 1 9 + [ab]{1,4}+ + Callout 255 10 1 + c + Callout 255 11 0 + Alt + Callout 255 12 1 + x + Callout 255 13 1 + y + Callout 255 14 0 + Ket + CBra 1 + Callout 255 1 9 + [ab]{1,4}+ + Callout 255 10 1 + c + Callout 255 11 0 + Alt + Callout 255 12 1 + x + Callout 255 13 1 + y + Callout 255 14 0 + Ket + Braminzero + CBra 1 + Callout 255 1 9 + [ab]{1,4}+ + Callout 255 10 1 + c + Callout 255 11 0 + Alt + Callout 255 12 1 + x + Callout 255 13 1 + y + Callout 255 14 0 + Ket + Callout 255 21 1 + 1 + Callout 255 22 1 + 2 + Callout 255 23 1 + 3 + Callout 255 24 0 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +Options: +No first char +Need char = '3' + aacaacaacaacaac123 +--->aacaacaacaacaac123 + +0 ^ ([ab]{1,4}c|xy){4,5}? + +1 ^ [ab]{1,4} ++10 ^ ^ c ++11 ^ ^ | + +1 ^ ^ [ab]{1,4} ++10 ^ ^ c ++11 ^ ^ | + +1 ^ ^ [ab]{1,4} ++10 ^ ^ c ++11 ^ ^ | + +1 ^ ^ [ab]{1,4} ++10 ^ ^ c ++11 ^ ^ | ++21 ^ ^ 1 + +1 ^ ^ [ab]{1,4} ++10 ^ ^ c ++11 ^ ^ | ++21 ^ ^ 1 ++22 ^ ^ 2 ++23 ^ ^ 3 ++24 ^ ^ + 0: aacaacaacaacaac123 + 1: aac + +/\b.*/I +Capturing subpattern count = 0 +Max lookbehind = 1 +May match empty string +No options +No first char +No need char + ab cd\>1 + 0: cd + +/\b.*/Is +Capturing subpattern count = 0 +Max lookbehind = 1 +May match empty string +Options: dotall +No first char +No need char + ab cd\>1 + 0: cd + +/(?!.bcd).*/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + Xbcd12345 + 0: bcd12345 + +/abcde/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'e' + ab\P +Partial match: ab + abc\P +Partial match: abc + abcd\P +Partial match: abcd + abcde\P + 0: abcde + the quick brown abc\P +Partial match: abc + ** Failers\P +No match + the quick brown abxyz fox\P +No match + +"^(0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[012])/(20)?\d\d$"I +Capturing subpattern count = 3 +Options: anchored +No first char +Need char = '/' + 13/05/04\P + 0: 13/05/04 + 1: 13 + 2: 05 + 13/5/2004\P + 0: 13/5/2004 + 1: 13 + 2: 5 + 3: 20 + 02/05/09\P + 0: 02/05/09 + 1: 02 + 2: 05 + 1\P +Partial match: 1 + 1/2\P +Partial match: 1/2 + 1/2/0\P +Partial match: 1/2/0 + 1/2/04\P + 0: 1/2/04 + 1: 1 + 2: 2 + 0\P +Partial match: 0 + 02/\P +Partial match: 02/ + 02/0\P +Partial match: 02/0 + 02/1\P +Partial match: 02/1 + ** Failers\P +No match + \P +No match + 123\P +No match + 33/4/04\P +No match + 3/13/04\P +No match + 0/1/2003\P +No match + 0/\P +No match + 02/0/\P +No match + 02/13\P +No match + +/0{0,2}ABC/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'C' + +/\d{3,}ABC/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'C' + +/\d*ABC/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'C' + +/[abc]+DE/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'E' + +/[abc]?123/I +Capturing subpattern count = 0 +No options +No first char +Need char = '3' + 123\P + 0: 123 + a\P +Partial match: a + b\P +Partial match: b + c\P +Partial match: c + c12\P +Partial match: c12 + c123\P + 0: c123 + +/^(?:\d){3,5}X/I +Capturing subpattern count = 0 +Options: anchored +No first char +Need char = 'X' + 1\P +Partial match: 1 + 123\P +Partial match: 123 + 123X + 0: 123X + 1234\P +Partial match: 1234 + 1234X + 0: 1234X + 12345\P +Partial match: 12345 + 12345X + 0: 12345X + *** Failers +No match + 1X +No match + 123456\P +No match + +//S-KF>testsavedregex +Compiled pattern written to testsavedregex + +/abc/IS>testsavedregex +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' +Subject length lower bound = 3 +No starting char list +Compiled pattern written to testsavedregex +Study data written to testsavedregex +<testsavedregex +Compiled pattern loaded from testsavedregex +Study data loaded from testsavedregex + abc + 0: abc + ** Failers +No match + bca +No match + +/abc/ISS>testsavedregex +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' +Compiled pattern written to testsavedregex +<testsavedregex +Compiled pattern loaded from testsavedregex +No study data + abc + 0: abc + ** Failers +No match + bca +No match + +/abc/IFS>testsavedregex +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' +Subject length lower bound = 3 +No starting char list +Compiled pattern written to testsavedregex +Study data written to testsavedregex +<testsavedregex +Compiled pattern (byte-inverted) loaded from testsavedregex +Study data loaded from testsavedregex + abc + 0: abc + ** Failers +No match + bca +No match + +/abc/IFSS>testsavedregex +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' +Compiled pattern written to testsavedregex +<testsavedregex +Compiled pattern (byte-inverted) loaded from testsavedregex +No study data + abc + 0: abc + ** Failers +No match + bca +No match + +/(a|b)/IS>testsavedregex +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b +Compiled pattern written to testsavedregex +Study data written to testsavedregex +<testsavedregex +Compiled pattern loaded from testsavedregex +Study data loaded from testsavedregex + abc + 0: a + 1: a + ** Failers + 0: a + 1: a + def +No match + +/(a|b)/ISS>testsavedregex +Capturing subpattern count = 1 +No options +No first char +No need char +Compiled pattern written to testsavedregex +<testsavedregex +Compiled pattern loaded from testsavedregex +No study data + abc + 0: a + 1: a + ** Failers + 0: a + 1: a + def +No match + +/(a|b)/ISF>testsavedregex +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b +Compiled pattern written to testsavedregex +Study data written to testsavedregex +<testsavedregex +Compiled pattern (byte-inverted) loaded from testsavedregex +Study data loaded from testsavedregex + abc + 0: a + 1: a + ** Failers + 0: a + 1: a + def +No match + +/(a|b)/ISSF>testsavedregex +Capturing subpattern count = 1 +No options +No first char +No need char +Compiled pattern written to testsavedregex +<testsavedregex +Compiled pattern (byte-inverted) loaded from testsavedregex +No study data + abc + 0: a + 1: a + ** Failers + 0: a + 1: a + def +No match + +~<(\w+)/?>(.)*</(\1)>~smgI +Capturing subpattern count = 3 +Max back reference = 1 +Options: multiline dotall +First char = '<' +Need char = '>' + \J1024<!DOCTYPE seite SYSTEM "http://www.lco.lineas.de/xmlCms.dtd">\n<seite>\n<dokumenteninformation>\n<seitentitel>Partner der LCO</seitentitel>\n<sprache>de</sprache>\n<seitenbeschreibung>Partner der LINEAS Consulting\nGmbH</seitenbeschreibung>\n<schluesselworte>LINEAS Consulting GmbH Hamburg\nPartnerfirmen</schluesselworte>\n<revisit>30 days</revisit>\n<robots>index,follow</robots>\n<menueinformation>\n<aktiv>ja</aktiv>\n<menueposition>3</menueposition>\n<menuetext>Partner</menuetext>\n</menueinformation>\n<lastedited>\n<autor>LCO</autor>\n<firma>LINEAS Consulting</firma>\n<datum>15.10.2003</datum>\n</lastedited>\n</dokumenteninformation>\n<inhalt>\n\n<absatzueberschrift>Die Partnerfirmen der LINEAS Consulting\nGmbH</absatzueberschrift>\n\n<absatz><link ziel="http://www.ca.com/" zielfenster="_blank">\n<bild name="logo_ca.gif" rahmen="no"/></link> <link\nziel="http://www.ey.com/" zielfenster="_blank"><bild\nname="logo_euy.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><link ziel="http://www.cisco.de/" zielfenster="_blank">\n<bild name="logo_cisco.gif" rahmen="ja"/></link></absatz>\n\n<absatz><link ziel="http://www.atelion.de/"\nzielfenster="_blank"><bild\nname="logo_atelion.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><link ziel="http://www.line-information.de/"\nzielfenster="_blank">\n<bild name="logo_line_information.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><bild name="logo_aw.gif" rahmen="no"/></absatz>\n\n<absatz><link ziel="http://www.incognis.de/"\nzielfenster="_blank"><bild\nname="logo_incognis.gif" rahmen="no"/></link></absatz>\n\n<absatz><link ziel="http://www.addcraft.com/"\nzielfenster="_blank"><bild\nname="logo_addcraft.gif" rahmen="no"/></link></absatz>\n\n<absatz><link ziel="http://www.comendo.com/"\nzielfenster="_blank"><bild\nname="logo_comendo.gif" rahmen="no"/></link></absatz>\n\n</inhalt>\n</seite> + 0: <seite>\x0a<dokumenteninformation>\x0a<seitentitel>Partner der LCO</seitentitel>\x0a<sprache>de</sprache>\x0a<seitenbeschreibung>Partner der LINEAS Consulting\x0aGmbH</seitenbeschreibung>\x0a<schluesselworte>LINEAS Consulting GmbH Hamburg\x0aPartnerfirmen</schluesselworte>\x0a<revisit>30 days</revisit>\x0a<robots>index,follow</robots>\x0a<menueinformation>\x0a<aktiv>ja</aktiv>\x0a<menueposition>3</menueposition>\x0a<menuetext>Partner</menuetext>\x0a</menueinformation>\x0a<lastedited>\x0a<autor>LCO</autor>\x0a<firma>LINEAS Consulting</firma>\x0a<datum>15.10.2003</datum>\x0a</lastedited>\x0a</dokumenteninformation>\x0a<inhalt>\x0a\x0a<absatzueberschrift>Die Partnerfirmen der LINEAS Consulting\x0aGmbH</absatzueberschrift>\x0a\x0a<absatz><link ziel="http://www.ca.com/" zielfenster="_blank">\x0a<bild name="logo_ca.gif" rahmen="no"/></link> <link\x0aziel="http://www.ey.com/" zielfenster="_blank"><bild\x0aname="logo_euy.gif" rahmen="no"/></link>\x0a</absatz>\x0a\x0a<absatz><link ziel="http://www.cisco.de/" zielfenster="_blank">\x0a<bild name="logo_cisco.gif" rahmen="ja"/></link></absatz>\x0a\x0a<absatz><link ziel="http://www.atelion.de/"\x0azielfenster="_blank"><bild\x0aname="logo_atelion.gif" rahmen="no"/></link>\x0a</absatz>\x0a\x0a<absatz><link ziel="http://www.line-information.de/"\x0azielfenster="_blank">\x0a<bild name="logo_line_information.gif" rahmen="no"/></link>\x0a</absatz>\x0a\x0a<absatz><bild name="logo_aw.gif" rahmen="no"/></absatz>\x0a\x0a<absatz><link ziel="http://www.incognis.de/"\x0azielfenster="_blank"><bild\x0aname="logo_incognis.gif" rahmen="no"/></link></absatz>\x0a\x0a<absatz><link ziel="http://www.addcraft.com/"\x0azielfenster="_blank"><bild\x0aname="logo_addcraft.gif" rahmen="no"/></link></absatz>\x0a\x0a<absatz><link ziel="http://www.comendo.com/"\x0azielfenster="_blank"><bild\x0aname="logo_comendo.gif" rahmen="no"/></link></absatz>\x0a\x0a</inhalt>\x0a</seite> + 1: seite + 2: \x0a + 3: seite + +/^a/IF +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/line\nbreak/I +Capturing subpattern count = 0 +Contains explicit CR or LF match +No options +First char = 'l' +Need char = 'k' + this is a line\nbreak + 0: line\x0abreak + line one\nthis is a line\nbreak in the second line + 0: line\x0abreak + +/line\nbreak/If +Capturing subpattern count = 0 +Contains explicit CR or LF match +Options: firstline +First char = 'l' +Need char = 'k' + this is a line\nbreak + 0: line\x0abreak + ** Failers +No match + line one\nthis is a line\nbreak in the second line +No match + +/line\nbreak/Imf +Capturing subpattern count = 0 +Contains explicit CR or LF match +Options: multiline firstline +First char = 'l' +Need char = 'k' + this is a line\nbreak + 0: line\x0abreak + ** Failers +No match + line one\nthis is a line\nbreak in the second line +No match + +/(?i)(?-i)AbCd/I +Capturing subpattern count = 0 +No options +First char = 'A' +Need char = 'd' + AbCd + 0: AbCd + ** Failers +No match + abcd +No match + +/a{11111111111111111111}/I +Failed: number too big in {} quantifier at offset 8 + +/(){64294967295}/I +Failed: number too big in {} quantifier at offset 9 + +/(){2,4294967295}/I +Failed: number too big in {} quantifier at offset 11 + +"(?i:a)(?i:b)(?i:c)(?i:d)(?i:e)(?i:f)(?i:g)(?i:h)(?i:i)(?i:j)(k)(?i:l)A\1B"I +Capturing subpattern count = 1 +Max back reference = 1 +No options +First char = 'a' (caseless) +Need char = 'B' + abcdefghijklAkB + 0: abcdefghijklAkB + 1: k + +"(?P<n0>a)(?P<n1>b)(?P<n2>c)(?P<n3>d)(?P<n4>e)(?P<n5>f)(?P<n6>g)(?P<n7>h)(?P<n8>i)(?P<n9>j)(?P<n10>k)(?P<n11>l)A\11B"I +Capturing subpattern count = 12 +Max back reference = 11 +Named capturing subpatterns: + n0 1 + n1 2 + n10 11 + n11 12 + n2 3 + n3 4 + n4 5 + n5 6 + n6 7 + n7 8 + n8 9 + n9 10 +No options +First char = 'a' +Need char = 'B' + abcdefghijklAkB + 0: abcdefghijklAkB + 1: a + 2: b + 3: c + 4: d + 5: e + 6: f + 7: g + 8: h + 9: i +10: j +11: k +12: l + +"(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)A\11B"I +Capturing subpattern count = 12 +Max back reference = 11 +No options +First char = 'a' +Need char = 'B' + abcdefghijklAkB + 0: abcdefghijklAkB + 1: a + 2: b + 3: c + 4: d + 5: e + 6: f + 7: g + 8: h + 9: i +10: j +11: k +12: l + +"(?P<name0>a)(?P<name1>a)(?P<name2>a)(?P<name3>a)(?P<name4>a)(?P<name5>a)(?P<name6>a)(?P<name7>a)(?P<name8>a)(?P<name9>a)(?P<name10>a)(?P<name11>a)(?P<name12>a)(?P<name13>a)(?P<name14>a)(?P<name15>a)(?P<name16>a)(?P<name17>a)(?P<name18>a)(?P<name19>a)(?P<name20>a)(?P<name21>a)(?P<name22>a)(?P<name23>a)(?P<name24>a)(?P<name25>a)(?P<name26>a)(?P<name27>a)(?P<name28>a)(?P<name29>a)(?P<name30>a)(?P<name31>a)(?P<name32>a)(?P<name33>a)(?P<name34>a)(?P<name35>a)(?P<name36>a)(?P<name37>a)(?P<name38>a)(?P<name39>a)(?P<name40>a)(?P<name41>a)(?P<name42>a)(?P<name43>a)(?P<name44>a)(?P<name45>a)(?P<name46>a)(?P<name47>a)(?P<name48>a)(?P<name49>a)(?P<name50>a)(?P<name51>a)(?P<name52>a)(?P<name53>a)(?P<name54>a)(?P<name55>a)(?P<name56>a)(?P<name57>a)(?P<name58>a)(?P<name59>a)(?P<name60>a)(?P<name61>a)(?P<name62>a)(?P<name63>a)(?P<name64>a)(?P<name65>a)(?P<name66>a)(?P<name67>a)(?P<name68>a)(?P<name69>a)(?P<name70>a)(?P<name71>a)(?P<name72>a)(?P<name73>a)(?P<name74>a)(?P<name75>a)(?P<name76>a)(?P<name77>a)(?P<name78>a)(?P<name79>a)(?P<name80>a)(?P<name81>a)(?P<name82>a)(?P<name83>a)(?P<name84>a)(?P<name85>a)(?P<name86>a)(?P<name87>a)(?P<name88>a)(?P<name89>a)(?P<name90>a)(?P<name91>a)(?P<name92>a)(?P<name93>a)(?P<name94>a)(?P<name95>a)(?P<name96>a)(?P<name97>a)(?P<name98>a)(?P<name99>a)(?P<name100>a)"I +Capturing subpattern count = 101 +Named capturing subpatterns: + name0 1 + name1 2 + name10 11 + name100 101 + name11 12 + name12 13 + name13 14 + name14 15 + name15 16 + name16 17 + name17 18 + name18 19 + name19 20 + name2 3 + name20 21 + name21 22 + name22 23 + name23 24 + name24 25 + name25 26 + name26 27 + name27 28 + name28 29 + name29 30 + name3 4 + name30 31 + name31 32 + name32 33 + name33 34 + name34 35 + name35 36 + name36 37 + name37 38 + name38 39 + name39 40 + name4 5 + name40 41 + name41 42 + name42 43 + name43 44 + name44 45 + name45 46 + name46 47 + name47 48 + name48 49 + name49 50 + name5 6 + name50 51 + name51 52 + name52 53 + name53 54 + name54 55 + name55 56 + name56 57 + name57 58 + name58 59 + name59 60 + name6 7 + name60 61 + name61 62 + name62 63 + name63 64 + name64 65 + name65 66 + name66 67 + name67 68 + name68 69 + name69 70 + name7 8 + name70 71 + name71 72 + name72 73 + name73 74 + name74 75 + name75 76 + name76 77 + name77 78 + name78 79 + name79 80 + name8 9 + name80 81 + name81 82 + name82 83 + name83 84 + name84 85 + name85 86 + name86 87 + name87 88 + name88 89 + name89 90 + name9 10 + name90 91 + name91 92 + name92 93 + name93 94 + name94 95 + name95 96 + name96 97 + name97 98 + name98 99 + name99 100 +No options +First char = 'a' +Need char = 'a' + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +Matched, but too many substrings + 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + 1: a + 2: a + 3: a + 4: a + 5: a + 6: a + 7: a + 8: a + 9: a +10: a +11: a +12: a +13: a +14: a + +"(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)"I +Capturing subpattern count = 101 +No options +First char = 'a' +Need char = 'a' + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +Matched, but too many substrings + 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + 1: a + 2: a + 3: a + 4: a + 5: a + 6: a + 7: a + 8: a + 9: a +10: a +11: a +12: a +13: a +14: a + +/[^()]*(?:\((?R)\)[^()]*)*/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + (this(and)that + 0: + (this(and)that) + 0: (this(and)that) + (this(and)that)stuff + 0: (this(and)that)stuff + +/[^()]*(?:\((?>(?R))\)[^()]*)*/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + (this(and)that + 0: + (this(and)that) + 0: (this(and)that) + +/[^()]*(?:\((?R)\))*[^()]*/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + (this(and)that + 0: + (this(and)that) + 0: (this(and)that) + +/(?:\((?R)\))*[^()]*/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + (this(and)that + 0: + (this(and)that) + 0: + ((this)) + 0: ((this)) + +/(?:\((?R)\))|[^()]*/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + (this(and)that + 0: + (this(and)that) + 0: + (this) + 0: (this) + ((this)) + 0: ((this)) + +/\x{0000ff}/I +Capturing subpattern count = 0 +No options +First char = \xff +No need char + +/^((?P<A>a1)|(?P<A>a2)b)/I +Failed: two named subpatterns have the same name at offset 17 + +/^((?P<A>a1)|(?P<A>a2)b)/IJ +Capturing subpattern count = 3 +Named capturing subpatterns: + A 2 + A 3 +Options: anchored dupnames +No first char +No need char + a1b\CA + 0: a1 + 1: a1 + 2: a1 + C a1 (2) A + a2b\CA + 0: a2b + 1: a2b + 2: <unset> + 3: a2 + C a2 (2) A + ** Failers +No match + a1b\CZ\CA +no parentheses with name "Z" + 0: a1 + 1: a1 + 2: a1 +copy substring Z failed -7 + C a1 (2) A + +/(?|(?<a>)(?<b>)(?<a>)|(?<a>)(?<b>)(?<a>))/IJ +Capturing subpattern count = 3 +Named capturing subpatterns: + a 1 + a 3 + b 2 +May match empty string +Options: dupnames +No first char +No need char + +/^(?P<A>a)(?P<A>b)/IJ +Capturing subpattern count = 2 +Named capturing subpatterns: + A 1 + A 2 +Options: anchored dupnames +No first char +No need char + ab\CA + 0: ab + 1: a + 2: b + C a (1) A + +/^(?P<A>a)(?P<A>b)|cd/IJ +Capturing subpattern count = 2 +Named capturing subpatterns: + A 1 + A 2 +Options: dupnames +No first char +No need char + ab\CA + 0: ab + 1: a + 2: b + C a (1) A + cd\CA + 0: cd +copy substring A failed -7 + +/^(?P<A>a)(?P<A>b)|cd(?P<A>ef)(?P<A>gh)/IJ +Capturing subpattern count = 4 +Named capturing subpatterns: + A 1 + A 2 + A 3 + A 4 +Options: dupnames +No first char +No need char + cdefgh\CA + 0: cdefgh + 1: <unset> + 2: <unset> + 3: ef + 4: gh + C ef (2) A + +/^((?P<A>a1)|(?P<A>a2)b)/IJ +Capturing subpattern count = 3 +Named capturing subpatterns: + A 2 + A 3 +Options: anchored dupnames +No first char +No need char + a1b\GA + 0: a1 + 1: a1 + 2: a1 + G a1 (2) A + a2b\GA + 0: a2b + 1: a2b + 2: <unset> + 3: a2 + G a2 (2) A + ** Failers +No match + a1b\GZ\GA +no parentheses with name "Z" + 0: a1 + 1: a1 + 2: a1 +get substring Z failed -7 + G a1 (2) A + +/^(?P<A>a)(?P<A>b)/IJ +Capturing subpattern count = 2 +Named capturing subpatterns: + A 1 + A 2 +Options: anchored dupnames +No first char +No need char + ab\GA + 0: ab + 1: a + 2: b + G a (1) A + +/^(?P<A>a)(?P<A>b)|cd/IJ +Capturing subpattern count = 2 +Named capturing subpatterns: + A 1 + A 2 +Options: dupnames +No first char +No need char + ab\GA + 0: ab + 1: a + 2: b + G a (1) A + cd\GA + 0: cd +get substring A failed -7 + +/^(?P<A>a)(?P<A>b)|cd(?P<A>ef)(?P<A>gh)/IJ +Capturing subpattern count = 4 +Named capturing subpatterns: + A 1 + A 2 + A 3 + A 4 +Options: dupnames +No first char +No need char + cdefgh\GA + 0: cdefgh + 1: <unset> + 2: <unset> + 3: ef + 4: gh + G ef (2) A + +/(?J)^((?P<A>a1)|(?P<A>a2)b)/I +Capturing subpattern count = 3 +Named capturing subpatterns: + A 2 + A 3 +Options: anchored +Duplicate name status changes +No first char +No need char + a1b\CA + 0: a1 + 1: a1 + 2: a1 + C a1 (2) A + a2b\CA + 0: a2b + 1: a2b + 2: <unset> + 3: a2 + C a2 (2) A + +/^(?P<A>a) (?J:(?P<B>b)(?P<B>c)) (?P<A>d)/I +Failed: two named subpatterns have the same name at offset 37 + +/ In this next test, J is not set at the outer level; consequently it isn't +set in the pattern's options; consequently pcre_get_named_substring() produces +a random value. /Ix +Capturing subpattern count = 1 +Options: extended +First char = 'I' +Need char = 'e' + +/^(?P<A>a) (?J:(?P<B>b)(?P<B>c)) (?P<C>d)/I +Capturing subpattern count = 4 +Named capturing subpatterns: + A 1 + B 2 + B 3 + C 4 +Options: anchored +Duplicate name status changes +No first char +No need char + a bc d\CA\CB\CC + 0: a bc d + 1: a + 2: b + 3: c + 4: d + C a (1) A + C b (1) B + C d (1) C + +/^(?P<A>a)?(?(A)a|b)/I +Capturing subpattern count = 1 +Max back reference = 1 +Named capturing subpatterns: + A 1 +Options: anchored +No first char +No need char + aabc + 0: aa + 1: a + bc + 0: b + ** Failers +No match + abc +No match + +/(?:(?(ZZ)a|b)(?P<ZZ>X))+/I +Capturing subpattern count = 1 +Max back reference = 1 +Named capturing subpatterns: + ZZ 1 +No options +No first char +Need char = 'X' + bXaX + 0: bXaX + 1: X + +/(?:(?(2y)a|b)(X))+/I +Failed: malformed number or name after (?( at offset 7 + +/(?:(?(ZA)a|b)(?P<ZZ>X))+/I +Failed: reference to non-existent subpattern at offset 9 + +/(?:(?(ZZ)a|b)(?(ZZ)a|b)(?P<ZZ>X))+/I +Capturing subpattern count = 1 +Max back reference = 1 +Named capturing subpatterns: + ZZ 1 +No options +No first char +Need char = 'X' + bbXaaX + 0: bbXaaX + 1: X + +/(?:(?(ZZ)a|\(b\))\\(?P<ZZ>X))+/I +Capturing subpattern count = 1 +Max back reference = 1 +Named capturing subpatterns: + ZZ 1 +No options +No first char +Need char = 'X' + (b)\\Xa\\X + 0: (b)\Xa\X + 1: X + +/(?P<ABC/I +Failed: syntax error in subpattern name (missing terminator) at offset 7 + +/(?:(?(A)(?P=A)a|b)(?P<A>X|Y))+/I +Capturing subpattern count = 1 +Max back reference = 1 +Named capturing subpatterns: + A 1 +No options +No first char +No need char + bXXaYYaY + 0: bXXaYYaY + 1: Y + bXYaXXaX + 0: bX + 1: X + +/()()()()()()()()()(?:(?(A)(?P=A)a|b)(?P<A>X|Y))+/I +Capturing subpattern count = 10 +Max back reference = 10 +Named capturing subpatterns: + A 10 +No options +No first char +No need char + bXXaYYaY + 0: bXXaYYaY + 1: + 2: + 3: + 4: + 5: + 6: + 7: + 8: + 9: +10: Y + +/\s*,\s*/IS +Capturing subpattern count = 0 +No options +No first char +Need char = ',' +Subject length lower bound = 1 +Starting chars: \x09 \x0a \x0b \x0c \x0d \x20 , + \x0b,\x0b + 0: \x0b,\x0b + \x0c,\x0d + 0: \x0c,\x0d + +/^abc/Im +Capturing subpattern count = 0 +Options: multiline +First char at start or follows newline +Need char = 'c' + xyz\nabc + 0: abc + xyz\nabc\<lf> + 0: abc + xyz\r\nabc\<lf> + 0: abc + xyz\rabc\<cr> + 0: abc + xyz\r\nabc\<crlf> + 0: abc + ** Failers +No match + xyz\nabc\<cr> +No match + xyz\r\nabc\<cr> +No match + xyz\nabc\<crlf> +No match + xyz\rabc\<crlf> +No match + xyz\rabc\<lf> +No match + +/abc$/Im<lf> +Capturing subpattern count = 0 +Options: multiline +Forced newline sequence: LF +First char = 'a' +Need char = 'c' + xyzabc + 0: abc + xyzabc\n + 0: abc + xyzabc\npqr + 0: abc + xyzabc\r\<cr> + 0: abc + xyzabc\rpqr\<cr> + 0: abc + xyzabc\r\n\<crlf> + 0: abc + xyzabc\r\npqr\<crlf> + 0: abc + ** Failers +No match + xyzabc\r +No match + xyzabc\rpqr +No match + xyzabc\r\n +No match + xyzabc\r\npqr +No match + +/^abc/Im<cr> +Capturing subpattern count = 0 +Options: multiline +Forced newline sequence: CR +First char at start or follows newline +Need char = 'c' + xyz\rabcdef + 0: abc + xyz\nabcdef\<lf> + 0: abc + ** Failers +No match + xyz\nabcdef +No match + +/^abc/Im<lf> +Capturing subpattern count = 0 +Options: multiline +Forced newline sequence: LF +First char at start or follows newline +Need char = 'c' + xyz\nabcdef + 0: abc + xyz\rabcdef\<cr> + 0: abc + ** Failers +No match + xyz\rabcdef +No match + +/^abc/Im<crlf> +Capturing subpattern count = 0 +Options: multiline +Forced newline sequence: CRLF +First char at start or follows newline +Need char = 'c' + xyz\r\nabcdef + 0: abc + xyz\rabcdef\<cr> + 0: abc + ** Failers +No match + xyz\rabcdef +No match + +/^abc/Im<bad> +Unknown modifier at: <bad> + + +/abc/I +Capturing subpattern count = 0 +No options +First char = 'a' +Need char = 'c' + xyz\rabc\<bad> +Unknown escape sequence at: <bad> + abc + 0: abc + +/.*/I<lf> +Capturing subpattern count = 0 +May match empty string +Options: +Forced newline sequence: LF +First char at start or follows newline +No need char + abc\ndef + 0: abc + abc\rdef + 0: abc\x0ddef + abc\r\ndef + 0: abc\x0d + \<cr>abc\ndef + 0: abc\x0adef + \<cr>abc\rdef + 0: abc + \<cr>abc\r\ndef + 0: abc + \<crlf>abc\ndef + 0: abc\x0adef + \<crlf>abc\rdef + 0: abc\x0ddef + \<crlf>abc\r\ndef + 0: abc + +/\w+(.)(.)?def/Is +Capturing subpattern count = 2 +Options: dotall +No first char +Need char = 'f' + abc\ndef + 0: abc\x0adef + 1: \x0a + abc\rdef + 0: abc\x0ddef + 1: \x0d + abc\r\ndef + 0: abc\x0d\x0adef + 1: \x0d + 2: \x0a + ++((?:\s|//.*\\n|/[*](?:\\n|.)*?[*]/)*)+I +Capturing subpattern count = 1 +May match empty string +No options +No first char +No need char + /* this is a C style comment */\M +Minimum match() limit = 120 +Minimum match() recursion limit = 6 + 0: /* this is a C style comment */ + 1: /* this is a C style comment */ + +/(?P<B>25[0-5]|2[0-4]\d|[01]?\d?\d)(?:\.(?P>B)){3}/I +Capturing subpattern count = 1 +Named capturing subpatterns: + B 1 +No options +No first char +Need char = '.' + +/()()()()()()()()()()()()()()()()()()()() + ()()()()()()()()()()()()()()()()()()()() + ()()()()()()()()()()()()()()()()()()()() + ()()()()()()()()()()()()()()()()()()()() + ()()()()()()()()()()()()()()()()()()()() + (.(.))/Ix +Capturing subpattern count = 102 +Options: extended +No first char +No need char + XY\O400 + 0: XY + 1: + 2: + 3: + 4: + 5: + 6: + 7: + 8: + 9: +10: +11: +12: +13: +14: +15: +16: +17: +18: +19: +20: +21: +22: +23: +24: +25: +26: +27: +28: +29: +30: +31: +32: +33: +34: +35: +36: +37: +38: +39: +40: +41: +42: +43: +44: +45: +46: +47: +48: +49: +50: +51: +52: +53: +54: +55: +56: +57: +58: +59: +60: +61: +62: +63: +64: +65: +66: +67: +68: +69: +70: +71: +72: +73: +74: +75: +76: +77: +78: +79: +80: +81: +82: +83: +84: +85: +86: +87: +88: +89: +90: +91: +92: +93: +94: +95: +96: +97: +98: +99: +100: +101: XY +102: Y + +/(a*b|(?i:c*(?-i)d))/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: C a b c d + +/()[ab]xyz/IS +Capturing subpattern count = 1 +No options +No first char +Need char = 'z' +Subject length lower bound = 4 +Starting chars: a b + +/(|)[ab]xyz/IS +Capturing subpattern count = 1 +No options +No first char +Need char = 'z' +Subject length lower bound = 4 +Starting chars: a b + +/(|c)[ab]xyz/IS +Capturing subpattern count = 1 +No options +No first char +Need char = 'z' +Subject length lower bound = 4 +Starting chars: a b c + +/(|c?)[ab]xyz/IS +Capturing subpattern count = 1 +No options +No first char +Need char = 'z' +Subject length lower bound = 4 +Starting chars: a b c + +/(d?|c?)[ab]xyz/IS +Capturing subpattern count = 1 +No options +No first char +Need char = 'z' +Subject length lower bound = 4 +Starting chars: a b c d + +/(d?|c)[ab]xyz/IS +Capturing subpattern count = 1 +No options +No first char +Need char = 'z' +Subject length lower bound = 4 +Starting chars: a b c d + +/^a*b\d/DZ +------------------------------------------------------------------ + Bra + ^ + a*+ + b + \d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +Need char = 'b' + +/^a*+b\d/DZ +------------------------------------------------------------------ + Bra + ^ + a*+ + b + \d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +Need char = 'b' + +/^a*?b\d/DZ +------------------------------------------------------------------ + Bra + ^ + a*+ + b + \d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +Need char = 'b' + +/^a+A\d/DZ +------------------------------------------------------------------ + Bra + ^ + a++ + A + \d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored +No first char +Need char = 'A' + aaaA5 + 0: aaaA5 + ** Failers +No match + aaaa5 +No match + +/^a*A\d/IiDZ +------------------------------------------------------------------ + Bra + ^ + /i a* + /i A + \d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +Options: anchored caseless +No first char +Need char = 'A' (caseless) + aaaA5 + 0: aaaA5 + aaaa5 + 0: aaaa5 + +/(a*|b*)[cd]/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b c d + +/(a+|b*)[cd]/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b c d + +/(a*|b+)[cd]/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: a b c d + +/(a+|b+)[cd]/IS +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 2 +Starting chars: a b + +/(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( + (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( + ((( + a + )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) + )))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))) + ))) +/Ix +Capturing subpattern count = 203 +Options: extended +First char = 'a' +No need char + large nest +Matched, but too many substrings + 0: a + 1: a + 2: a + 3: a + 4: a + 5: a + 6: a + 7: a + 8: a + 9: a +10: a +11: a +12: a +13: a +14: a + +/a*\d/BZ +------------------------------------------------------------------ + Bra + a*+ + \d + Ket + End +------------------------------------------------------------------ + +/a*\D/BZ +------------------------------------------------------------------ + Bra + a* + \D + Ket + End +------------------------------------------------------------------ + +/0*\d/BZ +------------------------------------------------------------------ + Bra + 0* + \d + Ket + End +------------------------------------------------------------------ + +/0*\D/BZ +------------------------------------------------------------------ + Bra + 0*+ + \D + Ket + End +------------------------------------------------------------------ + +/a*\s/BZ +------------------------------------------------------------------ + Bra + a*+ + \s + Ket + End +------------------------------------------------------------------ + +/a*\S/BZ +------------------------------------------------------------------ + Bra + a* + \S + Ket + End +------------------------------------------------------------------ + +/ *\s/BZ +------------------------------------------------------------------ + Bra + * + \s + Ket + End +------------------------------------------------------------------ + +/ *\S/BZ +------------------------------------------------------------------ + Bra + *+ + \S + Ket + End +------------------------------------------------------------------ + +/a*\w/BZ +------------------------------------------------------------------ + Bra + a* + \w + Ket + End +------------------------------------------------------------------ + +/a*\W/BZ +------------------------------------------------------------------ + Bra + a*+ + \W + Ket + End +------------------------------------------------------------------ + +/=*\w/BZ +------------------------------------------------------------------ + Bra + =*+ + \w + Ket + End +------------------------------------------------------------------ + +/=*\W/BZ +------------------------------------------------------------------ + Bra + =* + \W + Ket + End +------------------------------------------------------------------ + +/\d*a/BZ +------------------------------------------------------------------ + Bra + \d*+ + a + Ket + End +------------------------------------------------------------------ + +/\d*2/BZ +------------------------------------------------------------------ + Bra + \d* + 2 + Ket + End +------------------------------------------------------------------ + +/\d*\d/BZ +------------------------------------------------------------------ + Bra + \d* + \d + Ket + End +------------------------------------------------------------------ + +/\d*\D/BZ +------------------------------------------------------------------ + Bra + \d*+ + \D + Ket + End +------------------------------------------------------------------ + +/\d*\s/BZ +------------------------------------------------------------------ + Bra + \d*+ + \s + Ket + End +------------------------------------------------------------------ + +/\d*\S/BZ +------------------------------------------------------------------ + Bra + \d* + \S + Ket + End +------------------------------------------------------------------ + +/\d*\w/BZ +------------------------------------------------------------------ + Bra + \d* + \w + Ket + End +------------------------------------------------------------------ + +/\d*\W/BZ +------------------------------------------------------------------ + Bra + \d*+ + \W + Ket + End +------------------------------------------------------------------ + +/\D*a/BZ +------------------------------------------------------------------ + Bra + \D* + a + Ket + End +------------------------------------------------------------------ + +/\D*2/BZ +------------------------------------------------------------------ + Bra + \D*+ + 2 + Ket + End +------------------------------------------------------------------ + +/\D*\d/BZ +------------------------------------------------------------------ + Bra + \D*+ + \d + Ket + End +------------------------------------------------------------------ + +/\D*\D/BZ +------------------------------------------------------------------ + Bra + \D* + \D + Ket + End +------------------------------------------------------------------ + +/\D*\s/BZ +------------------------------------------------------------------ + Bra + \D* + \s + Ket + End +------------------------------------------------------------------ + +/\D*\S/BZ +------------------------------------------------------------------ + Bra + \D* + \S + Ket + End +------------------------------------------------------------------ + +/\D*\w/BZ +------------------------------------------------------------------ + Bra + \D* + \w + Ket + End +------------------------------------------------------------------ + +/\D*\W/BZ +------------------------------------------------------------------ + Bra + \D* + \W + Ket + End +------------------------------------------------------------------ + +/\s*a/BZ +------------------------------------------------------------------ + Bra + \s*+ + a + Ket + End +------------------------------------------------------------------ + +/\s*2/BZ +------------------------------------------------------------------ + Bra + \s*+ + 2 + Ket + End +------------------------------------------------------------------ + +/\s*\d/BZ +------------------------------------------------------------------ + Bra + \s*+ + \d + Ket + End +------------------------------------------------------------------ + +/\s*\D/BZ +------------------------------------------------------------------ + Bra + \s* + \D + Ket + End +------------------------------------------------------------------ + +/\s*\s/BZ +------------------------------------------------------------------ + Bra + \s* + \s + Ket + End +------------------------------------------------------------------ + +/\s*\S/BZ +------------------------------------------------------------------ + Bra + \s*+ + \S + Ket + End +------------------------------------------------------------------ + +/\s*\w/BZ +------------------------------------------------------------------ + Bra + \s*+ + \w + Ket + End +------------------------------------------------------------------ + +/\s*\W/BZ +------------------------------------------------------------------ + Bra + \s* + \W + Ket + End +------------------------------------------------------------------ + +/\S*a/BZ +------------------------------------------------------------------ + Bra + \S* + a + Ket + End +------------------------------------------------------------------ + +/\S*2/BZ +------------------------------------------------------------------ + Bra + \S* + 2 + Ket + End +------------------------------------------------------------------ + +/\S*\d/BZ +------------------------------------------------------------------ + Bra + \S* + \d + Ket + End +------------------------------------------------------------------ + +/\S*\D/BZ +------------------------------------------------------------------ + Bra + \S* + \D + Ket + End +------------------------------------------------------------------ + +/\S*\s/BZ +------------------------------------------------------------------ + Bra + \S*+ + \s + Ket + End +------------------------------------------------------------------ + +/\S*\S/BZ +------------------------------------------------------------------ + Bra + \S* + \S + Ket + End +------------------------------------------------------------------ + +/\S*\w/BZ +------------------------------------------------------------------ + Bra + \S* + \w + Ket + End +------------------------------------------------------------------ + +/\S*\W/BZ +------------------------------------------------------------------ + Bra + \S* + \W + Ket + End +------------------------------------------------------------------ + +/\w*a/BZ +------------------------------------------------------------------ + Bra + \w* + a + Ket + End +------------------------------------------------------------------ + +/\w*2/BZ +------------------------------------------------------------------ + Bra + \w* + 2 + Ket + End +------------------------------------------------------------------ + +/\w*\d/BZ +------------------------------------------------------------------ + Bra + \w* + \d + Ket + End +------------------------------------------------------------------ + +/\w*\D/BZ +------------------------------------------------------------------ + Bra + \w* + \D + Ket + End +------------------------------------------------------------------ + +/\w*\s/BZ +------------------------------------------------------------------ + Bra + \w*+ + \s + Ket + End +------------------------------------------------------------------ + +/\w*\S/BZ +------------------------------------------------------------------ + Bra + \w* + \S + Ket + End +------------------------------------------------------------------ + +/\w*\w/BZ +------------------------------------------------------------------ + Bra + \w* + \w + Ket + End +------------------------------------------------------------------ + +/\w*\W/BZ +------------------------------------------------------------------ + Bra + \w*+ + \W + Ket + End +------------------------------------------------------------------ + +/\W*a/BZ +------------------------------------------------------------------ + Bra + \W*+ + a + Ket + End +------------------------------------------------------------------ + +/\W*2/BZ +------------------------------------------------------------------ + Bra + \W*+ + 2 + Ket + End +------------------------------------------------------------------ + +/\W*\d/BZ +------------------------------------------------------------------ + Bra + \W*+ + \d + Ket + End +------------------------------------------------------------------ + +/\W*\D/BZ +------------------------------------------------------------------ + Bra + \W* + \D + Ket + End +------------------------------------------------------------------ + +/\W*\s/BZ +------------------------------------------------------------------ + Bra + \W* + \s + Ket + End +------------------------------------------------------------------ + +/\W*\S/BZ +------------------------------------------------------------------ + Bra + \W* + \S + Ket + End +------------------------------------------------------------------ + +/\W*\w/BZ +------------------------------------------------------------------ + Bra + \W*+ + \w + Ket + End +------------------------------------------------------------------ + +/\W*\W/BZ +------------------------------------------------------------------ + Bra + \W* + \W + Ket + End +------------------------------------------------------------------ + +/[^a]+a/BZ +------------------------------------------------------------------ + Bra + [^a]++ + a + Ket + End +------------------------------------------------------------------ + +/[^a]+a/BZi +------------------------------------------------------------------ + Bra + /i [^a]++ + /i a + Ket + End +------------------------------------------------------------------ + +/[^a]+A/BZi +------------------------------------------------------------------ + Bra + /i [^a]++ + /i A + Ket + End +------------------------------------------------------------------ + +/[^a]+b/BZ +------------------------------------------------------------------ + Bra + [^a]+ + b + Ket + End +------------------------------------------------------------------ + +/[^a]+\d/BZ +------------------------------------------------------------------ + Bra + [^a]+ + \d + Ket + End +------------------------------------------------------------------ + +/a*[^a]/BZ +------------------------------------------------------------------ + Bra + a*+ + [^a] + Ket + End +------------------------------------------------------------------ + +/(?P<abc>x)(?P<xyz>y)/I +Capturing subpattern count = 2 +Named capturing subpatterns: + abc 1 + xyz 2 +No options +First char = 'x' +Need char = 'y' + xy\Cabc\Cxyz + 0: xy + 1: x + 2: y + C x (1) abc + C y (1) xyz + +/(?<abc>x)(?'xyz'y)/I +Capturing subpattern count = 2 +Named capturing subpatterns: + abc 1 + xyz 2 +No options +First char = 'x' +Need char = 'y' + xy\Cabc\Cxyz + 0: xy + 1: x + 2: y + C x (1) abc + C y (1) xyz + +/(?<abc'x)(?'xyz'y)/I +Failed: syntax error in subpattern name (missing terminator) at offset 6 + +/(?<abc>x)(?'xyz>y)/I +Failed: syntax error in subpattern name (missing terminator) at offset 15 + +/(?P'abc'x)(?P<xyz>y)/I +Failed: unrecognized character after (?P at offset 3 + +/^(?:(?(ZZ)a|b)(?<ZZ>X))+/ + bXaX + 0: bXaX + 1: X + bXbX + 0: bX + 1: X + ** Failers +No match + aXaX +No match + aXbX +No match + +/^(?P>abc)(?<abcd>xxx)/ +Failed: reference to non-existent subpattern at offset 8 + +/^(?P>abc)(?<abc>x|y)/ + xx + 0: xx + 1: x + xy + 0: xy + 1: y + yy + 0: yy + 1: y + yx + 0: yx + 1: x + +/^(?P>abc)(?P<abc>x|y)/ + xx + 0: xx + 1: x + xy + 0: xy + 1: y + yy + 0: yy + 1: y + yx + 0: yx + 1: x + +/^((?(abc)a|b)(?<abc>x|y))+/ + bxay + 0: bxay + 1: ay + 2: y + bxby + 0: bx + 1: bx + 2: x + ** Failers +No match + axby +No match + +/^(((?P=abc)|X)(?<abc>x|y))+/ + XxXxxx + 0: XxXxxx + 1: xx + 2: x + 3: x + XxXyyx + 0: XxXyyx + 1: yx + 2: y + 3: x + XxXyxx + 0: XxXy + 1: Xy + 2: X + 3: y + ** Failers +No match + x +No match + +/^(?1)(abc)/ + abcabc + 0: abcabc + 1: abc + +/^(?:(?:\1|X)(a|b))+/ + Xaaa + 0: Xaaa + 1: a + Xaba + 0: Xa + 1: a + +/^[\E\Qa\E-\Qz\E]+/BZ +------------------------------------------------------------------ + Bra + ^ + [a-z]++ + Ket + End +------------------------------------------------------------------ + +/^[a\Q]bc\E]/BZ +------------------------------------------------------------------ + Bra + ^ + [\]a-c] + Ket + End +------------------------------------------------------------------ + +/^[a-\Q\E]/BZ +------------------------------------------------------------------ + Bra + ^ + [\-a] + Ket + End +------------------------------------------------------------------ + +/^(?P>abc)[()](?<abc>)/BZ +------------------------------------------------------------------ + Bra + ^ + Recurse + [()] + CBra 1 + Ket + Ket + End +------------------------------------------------------------------ + +/^((?(abc)y)[()](?P<abc>x))+/BZ +------------------------------------------------------------------ + Bra + ^ + CBra 1 + Cond + 2 Cond ref + y + Ket + [()] + CBra 2 + x + Ket + KetRmax + Ket + End +------------------------------------------------------------------ + (xy)x + 0: (xy)x + 1: y)x + 2: x + +/^(?P>abc)\Q()\E(?<abc>)/BZ +------------------------------------------------------------------ + Bra + ^ + Recurse + () + CBra 1 + Ket + Ket + End +------------------------------------------------------------------ + +/^(?P>abc)[a\Q(]\E(](?<abc>)/BZ +------------------------------------------------------------------ + Bra + ^ + Recurse + [(\]a] + CBra 1 + Ket + Ket + End +------------------------------------------------------------------ + +/^(?P>abc) # this is (a comment) + (?<abc>)/BZx +------------------------------------------------------------------ + Bra + ^ + Recurse + CBra 1 + Ket + Ket + End +------------------------------------------------------------------ + +/^\W*(?:(?<one>(?<two>.)\W*(?&one)\W*\k<two>|)|(?<three>(?<four>.)\W*(?&three)\W*\k'four'|\W*.\W*))\W*$/Ii +Capturing subpattern count = 4 +Max back reference = 4 +Named capturing subpatterns: + four 4 + one 1 + three 3 + two 2 +May match empty string +Options: anchored caseless +No first char +No need char + 1221 + 0: 1221 + 1: 1221 + 2: 1 + Satan, oscillate my metallic sonatas! + 0: Satan, oscillate my metallic sonatas! + 1: <unset> + 2: <unset> + 3: Satan, oscillate my metallic sonatas + 4: S + A man, a plan, a canal: Panama! + 0: A man, a plan, a canal: Panama! + 1: <unset> + 2: <unset> + 3: A man, a plan, a canal: Panama + 4: A + Able was I ere I saw Elba. + 0: Able was I ere I saw Elba. + 1: <unset> + 2: <unset> + 3: Able was I ere I saw Elba + 4: A + *** Failers +No match + The quick brown fox +No match + +/(?=(\w+))\1:/I +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +Need char = ':' + abcd: + 0: abcd: + 1: abcd + +/(?=(?'abc'\w+))\k<abc>:/I +Capturing subpattern count = 1 +Max back reference = 1 +Named capturing subpatterns: + abc 1 +No options +No first char +Need char = ':' + abcd: + 0: abcd: + 1: abcd + +/(?'abc'a|b)(?<abc>d|e)\k<abc>{2}/J + adaa + 0: adaa + 1: a + 2: d + ** Failers +No match + addd +No match + adbb +No match + +/(?'abc'a|b)(?<abc>d|e)(?&abc){2}/J + bdaa + 0: bdaa + 1: b + 2: d + bdab + 0: bdab + 1: b + 2: d + ** Failers +No match + bddd +No match + +/(?(<bc))/ +Failed: malformed number or name after (?( at offset 6 + +/(?(''))/ +Failed: assertion expected after (?( or (?(?C) at offset 4 + +/(?('R')stuff)/ +Failed: reference to non-existent subpattern at offset 7 + +/((abc (?(R) (?(R1)1) (?(R2)2) X | (?1) (?2) (?R) ))) /x + abcabc1Xabc2XabcXabcabc + 0: abcabc1Xabc2XabcX + 1: abcabc1Xabc2XabcX + 2: abcabc1Xabc2XabcX + +/(?<A> (?'B' abc (?(R) (?(R&A)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x + abcabc1Xabc2XabcXabcabc + 0: abcabc1Xabc2XabcX + 1: abcabc1Xabc2XabcX + 2: abcabc1Xabc2XabcX + +/(?<A> (?'B' abc (?(R) (?(R&C)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x +Failed: reference to non-existent subpattern at offset 29 + +/^(?(DEFINE) abc | xyz ) /x +Failed: DEFINE group contains more than one branch at offset 22 + +/(?(DEFINE) abc) xyz/xI +Capturing subpattern count = 0 +Options: extended +First char = 'x' +Need char = 'z' + +/(a|)*\d/ + \O0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +No match + \O0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 +Matched, but too many substrings + +/^a.b/<lf> + a\rb + 0: a\x0db + a\nb\<cr> + 0: a\x0ab + a\x85b\<anycrlf> + 0: a\x85b + ** Failers +No match + a\nb +No match + a\nb\<any> +No match + a\rb\<cr> +No match + a\rb\<any> +No match + a\x85b\<any> +No match + a\rb\<anycrlf> +No match + +/^abc./mgx<any> + abc1 \x0aabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\x0aabc6 \x85abc7 JUNK + 0: abc1 + 0: abc2 + 0: abc3 + 0: abc4 + 0: abc5 + 0: abc6 + 0: abc7 + +/abc.$/mgx<any> + abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc7 abc9 + 0: abc1 + 0: abc2 + 0: abc3 + 0: abc4 + 0: abc5 + 0: abc6 + 0: abc9 + +/a/<cr><any> + +/a/<any><crlf> +Failed: inconsistent NEWLINE options at offset 0 + +/^a\Rb/<bsr_unicode> + a\nb + 0: a\x0ab + a\rb + 0: a\x0db + a\r\nb + 0: a\x0d\x0ab + a\x0bb + 0: a\x0bb + a\x0cb + 0: a\x0cb + a\x85b + 0: a\x85b + ** Failers +No match + a\n\rb +No match + +/^a\R*b/<bsr_unicode> + ab + 0: ab + a\nb + 0: a\x0ab + a\rb + 0: a\x0db + a\r\nb + 0: a\x0d\x0ab + a\x0bb + 0: a\x0bb + a\x0cb + 0: a\x0cb + a\x85b + 0: a\x85b + a\n\rb + 0: a\x0a\x0db + a\n\r\x85\x0cb + 0: a\x0a\x0d\x85\x0cb + +/^a\R+b/<bsr_unicode> + a\nb + 0: a\x0ab + a\rb + 0: a\x0db + a\r\nb + 0: a\x0d\x0ab + a\x0bb + 0: a\x0bb + a\x0cb + 0: a\x0cb + a\x85b + 0: a\x85b + a\n\rb + 0: a\x0a\x0db + a\n\r\x85\x0cb + 0: a\x0a\x0d\x85\x0cb + ** Failers +No match + ab +No match + +/^a\R{1,3}b/<bsr_unicode> + a\nb + 0: a\x0ab + a\n\rb + 0: a\x0a\x0db + a\n\r\x85b + 0: a\x0a\x0d\x85b + a\r\n\r\nb + 0: a\x0d\x0a\x0d\x0ab + a\r\n\r\n\r\nb + 0: a\x0d\x0a\x0d\x0a\x0d\x0ab + a\n\r\n\rb + 0: a\x0a\x0d\x0a\x0db + a\n\n\r\nb + 0: a\x0a\x0a\x0d\x0ab + ** Failers +No match + a\n\n\n\rb +No match + a\r +No match + +/^a[\R]b/<bsr_unicode> + aRb + 0: aRb + ** Failers +No match + a\nb +No match + +/(?&abc)X(?<abc>P)/I +Capturing subpattern count = 1 +Named capturing subpatterns: + abc 1 +No options +No first char +Need char = 'P' + abcPXP123 + 0: PXP + 1: P + +/(?1)X(?<abc>P)/I +Capturing subpattern count = 1 +Named capturing subpatterns: + abc 1 +No options +No first char +Need char = 'P' + abcPXP123 + 0: PXP + 1: P + +/(?:a(?&abc)b)*(?<abc>x)/ + 123axbaxbaxbx456 + 0: axbaxbaxbx + 1: x + 123axbaxbaxb456 + 0: x + 1: x + +/(?:a(?&abc)b){1,5}(?<abc>x)/ + 123axbaxbaxbx456 + 0: axbaxbaxbx + 1: x + +/(?:a(?&abc)b){2,5}(?<abc>x)/ + 123axbaxbaxbx456 + 0: axbaxbaxbx + 1: x + +/(?:a(?&abc)b){2,}(?<abc>x)/ + 123axbaxbaxbx456 + 0: axbaxbaxbx + 1: x + +/(abc)(?i:(?1))/ + defabcabcxyz + 0: abcabc + 1: abc + DEFabcABCXYZ +No match + +/(abc)(?:(?i)(?1))/ + defabcabcxyz + 0: abcabc + 1: abc + DEFabcABCXYZ +No match + +/^(a)\g-2/ +Failed: reference to non-existent subpattern at offset 7 + +/^(a)\g/ +Failed: a numbered reference must not be zero at offset 5 + +/^(a)\g{0}/ +Failed: a numbered reference must not be zero at offset 8 + +/^(a)\g{3/ +Failed: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number at offset 8 + +/^(a)\g{aa}/ +Failed: reference to non-existent subpattern at offset 9 + +/^a.b/<lf> + a\rb + 0: a\x0db + *** Failers +No match + a\nb +No match + +/.+foo/ + afoo + 0: afoo + ** Failers +No match + \r\nfoo +No match + \nfoo +No match + +/.+foo/<crlf> + afoo + 0: afoo + \nfoo + 0: \x0afoo + ** Failers +No match + \r\nfoo +No match + +/.+foo/<any> + afoo + 0: afoo + ** Failers +No match + \nfoo +No match + \r\nfoo +No match + +/.+foo/s + afoo + 0: afoo + \r\nfoo + 0: \x0d\x0afoo + \nfoo + 0: \x0afoo + +/^$/mg<any> + abc\r\rxyz + 0: + abc\n\rxyz + 0: + ** Failers +No match + abc\r\nxyz +No match + +/(?m)^$/<any>g+ + abc\r\n\r\n + 0: + 0+ \x0d\x0a + +/(?m)^$|^\r\n/<any>g+ + abc\r\n\r\n + 0: + 0+ \x0d\x0a + 0: \x0d\x0a + 0+ + +/(?m)$/<any>g+ + abc\r\n\r\n + 0: + 0+ \x0d\x0a\x0d\x0a + 0: + 0+ \x0d\x0a + 0: + 0+ + +/abc.$/mgx<anycrlf> + abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc9 + 0: abc1 + 0: abc4 + 0: abc5 + 0: abc9 + +/^X/m + XABC + 0: X + ** Failers +No match + XABC\B +No match + +/(ab|c)(?-1)/BZ +------------------------------------------------------------------ + Bra + CBra 1 + ab + Alt + c + Ket + Recurse + Ket + End +------------------------------------------------------------------ + abc + 0: abc + 1: ab + +/xy(?+1)(abc)/BZ +------------------------------------------------------------------ + Bra + xy + Recurse + CBra 1 + abc + Ket + Ket + End +------------------------------------------------------------------ + xyabcabc + 0: xyabcabc + 1: abc + ** Failers +No match + xyabc +No match + +/x(?-0)y/ +Failed: a numbered reference must not be zero at offset 5 + +/x(?-1)y/ +Failed: reference to non-existent subpattern at offset 5 + +/x(?+0)y/ +Failed: a numbered reference must not be zero at offset 5 + +/x(?+1)y/ +Failed: reference to non-existent subpattern at offset 5 + +/^(abc)?(?(-1)X|Y)/BZ +------------------------------------------------------------------ + Bra + ^ + Brazero + CBra 1 + abc + Ket + Cond + 1 Cond ref + X + Alt + Y + Ket + Ket + End +------------------------------------------------------------------ + abcX + 0: abcX + 1: abc + Y + 0: Y + ** Failers +No match + abcY +No match + +/^((?(+1)X|Y)(abc))+/BZ +------------------------------------------------------------------ + Bra + ^ + CBra 1 + Cond + 2 Cond ref + X + Alt + Y + Ket + CBra 2 + abc + Ket + KetRmax + Ket + End +------------------------------------------------------------------ + YabcXabc + 0: YabcXabc + 1: Xabc + 2: abc + YabcXabcXabc + 0: YabcXabcXabc + 1: Xabc + 2: abc + ** Failers +No match + XabcXabc +No match + +/(?(-1)a)/BZ +Failed: reference to non-existent subpattern at offset 6 + +/((?(-1)a))/BZ +------------------------------------------------------------------ + Bra + CBra 1 + Cond + 1 Cond ref + a + Ket + Ket + Ket + End +------------------------------------------------------------------ + +/((?(-2)a))/BZ +Failed: reference to non-existent subpattern at offset 7 + +/^(?(+1)X|Y)(.)/BZ +------------------------------------------------------------------ + Bra + ^ + Cond + 1 Cond ref + X + Alt + Y + Ket + CBra 1 + Any + Ket + Ket + End +------------------------------------------------------------------ + Y! + 0: Y! + 1: ! + +/(?<A>tom|bon)-\k{A}/ + tom-tom + 0: tom-tom + 1: tom + bon-bon + 0: bon-bon + 1: bon + ** Failers +No match + tom-bon +No match + +/\g{A/ +Failed: syntax error in subpattern name (missing terminator) at offset 4 + +/(?|(abc)|(xyz))/BZ +------------------------------------------------------------------ + Bra + Bra + CBra 1 + abc + Ket + Alt + CBra 1 + xyz + Ket + Ket + Ket + End +------------------------------------------------------------------ + >abc< + 0: abc + 1: abc + >xyz< + 0: xyz + 1: xyz + +/(x)(?|(abc)|(xyz))(x)/BZ +------------------------------------------------------------------ + Bra + CBra 1 + x + Ket + Bra + CBra 2 + abc + Ket + Alt + CBra 2 + xyz + Ket + Ket + CBra 3 + x + Ket + Ket + End +------------------------------------------------------------------ + xabcx + 0: xabcx + 1: x + 2: abc + 3: x + xxyzx + 0: xxyzx + 1: x + 2: xyz + 3: x + +/(x)(?|(abc)(pqr)|(xyz))(x)/BZ +------------------------------------------------------------------ + Bra + CBra 1 + x + Ket + Bra + CBra 2 + abc + Ket + CBra 3 + pqr + Ket + Alt + CBra 2 + xyz + Ket + Ket + CBra 4 + x + Ket + Ket + End +------------------------------------------------------------------ + xabcpqrx + 0: xabcpqrx + 1: x + 2: abc + 3: pqr + 4: x + xxyzx + 0: xxyzx + 1: x + 2: xyz + 3: <unset> + 4: x + +/\H++X/BZ +------------------------------------------------------------------ + Bra + \H++ + X + Ket + End +------------------------------------------------------------------ + ** Failers +No match + XXXX +No match + +/\H+\hY/BZ +------------------------------------------------------------------ + Bra + \H++ + \h + Y + Ket + End +------------------------------------------------------------------ + XXXX Y + 0: XXXX Y + +/\H+ Y/BZ +------------------------------------------------------------------ + Bra + \H++ + Y + Ket + End +------------------------------------------------------------------ + +/\h+A/BZ +------------------------------------------------------------------ + Bra + \h++ + A + Ket + End +------------------------------------------------------------------ + +/\v*B/BZ +------------------------------------------------------------------ + Bra + \v*+ + B + Ket + End +------------------------------------------------------------------ + +/\V+\x0a/BZ +------------------------------------------------------------------ + Bra + \V++ + \x0a + Ket + End +------------------------------------------------------------------ + +/A+\h/BZ +------------------------------------------------------------------ + Bra + A++ + \h + Ket + End +------------------------------------------------------------------ + +/ *\H/BZ +------------------------------------------------------------------ + Bra + *+ + \H + Ket + End +------------------------------------------------------------------ + +/A*\v/BZ +------------------------------------------------------------------ + Bra + A*+ + \v + Ket + End +------------------------------------------------------------------ + +/\x0b*\V/BZ +------------------------------------------------------------------ + Bra + \x0b*+ + \V + Ket + End +------------------------------------------------------------------ + +/\d+\h/BZ +------------------------------------------------------------------ + Bra + \d++ + \h + Ket + End +------------------------------------------------------------------ + +/\d*\v/BZ +------------------------------------------------------------------ + Bra + \d*+ + \v + Ket + End +------------------------------------------------------------------ + +/S+\h\S+\v/BZ +------------------------------------------------------------------ + Bra + S++ + \h + \S++ + \v + Ket + End +------------------------------------------------------------------ + +/\w{3,}\h\w+\v/BZ +------------------------------------------------------------------ + Bra + \w{3} + \w*+ + \h + \w++ + \v + Ket + End +------------------------------------------------------------------ + +/\h+\d\h+\w\h+\S\h+\H/BZ +------------------------------------------------------------------ + Bra + \h++ + \d + \h++ + \w + \h++ + \S + \h++ + \H + Ket + End +------------------------------------------------------------------ + +/\v+\d\v+\w\v+\S\v+\V/BZ +------------------------------------------------------------------ + Bra + \v++ + \d + \v++ + \w + \v++ + \S + \v++ + \V + Ket + End +------------------------------------------------------------------ + +/\H+\h\H+\d/BZ +------------------------------------------------------------------ + Bra + \H++ + \h + \H+ + \d + Ket + End +------------------------------------------------------------------ + +/\V+\v\V+\w/BZ +------------------------------------------------------------------ + Bra + \V++ + \v + \V+ + \w + Ket + End +------------------------------------------------------------------ + +/\( (?: [^()]* | (?R) )* \)/x 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+ +/[\E]AAA/ +Failed: missing terminating ] for character class at offset 7 + +/[\Q\E]AAA/ +Failed: missing terminating ] for character class at offset 9 + +/[^\E]AAA/ +Failed: missing terminating ] for character class at offset 8 + +/[^\Q\E]AAA/ +Failed: missing terminating ] for character class at offset 10 + +/[\E^]AAA/ +Failed: missing terminating ] for character class at offset 8 + +/[\Q\E^]AAA/ +Failed: missing terminating ] for character class at offset 10 + +/A(*PRUNE)B(*SKIP)C(*THEN)D(*COMMIT)E(*F)F(*FAIL)G(?!)H(*ACCEPT)I/BZ +------------------------------------------------------------------ + Bra + A + *PRUNE + B + *SKIP + C + *THEN + D + *COMMIT + E + *FAIL + F + *FAIL + G + *FAIL + H + *ACCEPT + I + Ket + End +------------------------------------------------------------------ + +/^a+(*FAIL)/C + aaaaaa +--->aaaaaa + +0 ^ ^ + +1 ^ a+ + +3 ^ ^ (*FAIL) + +3 ^ ^ (*FAIL) + +3 ^ ^ (*FAIL) + +3 ^ ^ (*FAIL) + +3 ^ ^ (*FAIL) + +3 ^^ (*FAIL) +No match + +/a+b?c+(*FAIL)/C + aaabccc +--->aaabccc + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ c+ + +6 ^ ^ (*FAIL) + +6 ^ ^ (*FAIL) + +6 ^ ^ (*FAIL) + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ c+ + +6 ^ ^ (*FAIL) + +6 ^ ^ (*FAIL) + +6 ^ ^ (*FAIL) + +0 ^ a+ + +2 ^^ b? + +4 ^ ^ c+ + +6 ^ ^ (*FAIL) + +6 ^ ^ (*FAIL) + +6 ^ ^ (*FAIL) +No match + +/a+b?(*PRUNE)c+(*FAIL)/C + aaabccc +--->aaabccc + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ (*PRUNE) ++12 ^ ^ c+ ++14 ^ ^ (*FAIL) ++14 ^ ^ (*FAIL) ++14 ^ ^ (*FAIL) + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ (*PRUNE) ++12 ^ ^ c+ ++14 ^ ^ (*FAIL) ++14 ^ ^ (*FAIL) ++14 ^ ^ (*FAIL) + +0 ^ a+ + +2 ^^ b? + +4 ^ ^ (*PRUNE) ++12 ^ ^ c+ ++14 ^ ^ (*FAIL) ++14 ^ ^ (*FAIL) ++14 ^ ^ (*FAIL) +No match + +/a+b?(*COMMIT)c+(*FAIL)/C + aaabccc +--->aaabccc + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ (*COMMIT) ++13 ^ ^ c+ ++15 ^ ^ (*FAIL) ++15 ^ ^ (*FAIL) ++15 ^ ^ (*FAIL) +No match + +/a+b?(*SKIP)c+(*FAIL)/C + aaabcccaaabccc +--->aaabcccaaabccc + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ (*SKIP) ++11 ^ ^ c+ ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ (*SKIP) ++11 ^ ^ c+ ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) +No match + +/a+b?(*THEN)c+(*FAIL)/C + aaabccc +--->aaabccc + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ (*THEN) ++11 ^ ^ c+ ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) + +0 ^ a+ + +2 ^ ^ b? + +4 ^ ^ (*THEN) ++11 ^ ^ c+ ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) + +0 ^ a+ + +2 ^^ b? + +4 ^ ^ (*THEN) ++11 ^ ^ c+ ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) ++13 ^ ^ (*FAIL) +No match + +/a(*MARK)b/ +Failed: (*MARK) must have an argument at offset 7 + +/(?i:A{1,}\6666666666)/ +Failed: number is too big at offset 19 + +/\g6666666666/ +Failed: number is too big at offset 11 + +/[\g6666666666]/BZ +------------------------------------------------------------------ + Bra + [6g] + Ket + End +------------------------------------------------------------------ + +/(?1)\c[/ +Failed: reference to non-existent subpattern at offset 3 + +/.+A/<crlf> + \r\nA +No match + +/\nA/<crlf> + \r\nA + 0: \x0aA + +/[\r\n]A/<crlf> + \r\nA + 0: \x0aA + +/(\r|\n)A/<crlf> + \r\nA + 0: \x0aA + 1: \x0a + +/a(*CR)b/ +Failed: (*VERB) not recognized or malformed at offset 5 + +/(*CR)a.b/ + a\nb + 0: a\x0ab + ** Failers +No match + a\rb +No match + +/(*CR)a.b/<lf> + a\nb + 0: a\x0ab + ** Failers +No match + a\rb +No match + +/(*LF)a.b/<CRLF> + a\rb + 0: a\x0db + ** Failers +No match + a\nb +No match + +/(*CRLF)a.b/ + a\rb + 0: a\x0db + a\nb + 0: a\x0ab + ** Failers +No match + a\r\nb +No match + +/(*ANYCRLF)a.b/<CR> + ** Failers +No match + a\rb +No match + a\nb +No match + a\r\nb +No match + +/(*ANY)a.b/<cr> + ** Failers +No match + a\rb +No match + a\nb +No match + a\r\nb +No match + a\x85b +No match + +/(*ANY).*/g + abc\r\ndef + 0: abc + 0: + 0: def + 0: + +/(*ANYCRLF).*/g + abc\r\ndef + 0: abc + 0: + 0: def + 0: + +/(*CRLF).*/g + abc\r\ndef + 0: abc + 0: + 0: def + 0: + +/a\Rb/I<bsr_anycrlf> +Capturing subpattern count = 0 +Options: bsr_anycrlf +First char = 'a' +Need char = 'b' + a\rb + 0: a\x0db + a\nb + 0: a\x0ab + a\r\nb + 0: a\x0d\x0ab + ** Failers +No match + a\x85b +No match + a\x0bb +No match + +/a\Rb/I<bsr_unicode> +Capturing subpattern count = 0 +Options: bsr_unicode +First char = 'a' +Need char = 'b' + a\rb + 0: a\x0db + a\nb + 0: a\x0ab + a\r\nb + 0: a\x0d\x0ab + a\x85b + 0: a\x85b + a\x0bb + 0: a\x0bb + ** Failers +No match + a\x85b\<bsr_anycrlf> +No match + a\x0bb\<bsr_anycrlf> +No match + +/a\R?b/I<bsr_anycrlf> +Capturing subpattern count = 0 +Options: bsr_anycrlf +First char = 'a' +Need char = 'b' + a\rb + 0: a\x0db + a\nb + 0: a\x0ab + a\r\nb + 0: a\x0d\x0ab + ** Failers +No match + a\x85b +No match + a\x0bb +No match + +/a\R?b/I<bsr_unicode> +Capturing subpattern count = 0 +Options: bsr_unicode +First char = 'a' +Need char = 'b' + a\rb + 0: a\x0db + a\nb + 0: a\x0ab + a\r\nb + 0: a\x0d\x0ab + a\x85b + 0: a\x85b + a\x0bb + 0: a\x0bb + ** Failers +No match + a\x85b\<bsr_anycrlf> +No match + a\x0bb\<bsr_anycrlf> +No match + +/a\R{2,4}b/I<bsr_anycrlf> +Capturing subpattern count = 0 +Options: bsr_anycrlf +First char = 'a' +Need char = 'b' + a\r\n\nb + 0: a\x0d\x0a\x0ab + a\n\r\rb + 0: a\x0a\x0d\x0db + a\r\n\r\n\r\n\r\nb + 0: a\x0d\x0a\x0d\x0a\x0d\x0a\x0d\x0ab + ** Failers +No match + a\x85\85b +No match + a\x0b\0bb +No match + +/a\R{2,4}b/I<bsr_unicode> +Capturing subpattern count = 0 +Options: bsr_unicode +First char = 'a' +Need char = 'b' + a\r\rb + 0: a\x0d\x0db + a\n\n\nb + 0: a\x0a\x0a\x0ab + a\r\n\n\r\rb + 0: a\x0d\x0a\x0a\x0d\x0db + a\x85\85b +No match + a\x0b\0bb +No match + ** Failers +No match + a\r\r\r\r\rb +No match + a\x85\85b\<bsr_anycrlf> +No match + a\x0b\0bb\<bsr_anycrlf> +No match + +/(*BSR_ANYCRLF)a\Rb/I +Capturing subpattern count = 0 +Options: bsr_anycrlf +First char = 'a' +Need char = 'b' + a\nb + 0: a\x0ab + a\rb + 0: a\x0db + +/(*BSR_UNICODE)a\Rb/I +Capturing subpattern count = 0 +Options: bsr_unicode +First char = 'a' +Need char = 'b' + a\x85b + 0: a\x85b + +/(*BSR_ANYCRLF)(*CRLF)a\Rb/I +Capturing subpattern count = 0 +Options: bsr_anycrlf +Forced newline sequence: CRLF +First char = 'a' +Need char = 'b' + a\nb + 0: a\x0ab + a\rb + 0: a\x0db + +/(*CRLF)(*BSR_UNICODE)a\Rb/I +Capturing subpattern count = 0 +Options: bsr_unicode +Forced newline sequence: CRLF +First char = 'a' +Need char = 'b' + a\x85b + 0: a\x85b + +/(*CRLF)(*BSR_ANYCRLF)(*CR)ab/I +Capturing subpattern count = 0 +Options: bsr_anycrlf +Forced newline sequence: CR +First char = 'a' +Need char = 'b' + +/(?<a>)(?&)/ +Failed: subpattern name expected at offset 9 + +/(?<abc>)(?&a)/ +Failed: reference to non-existent subpattern at offset 12 + +/(?<a>)(?&aaaaaaaaaaaaaaaaaaaaaaa)/ +Failed: reference to non-existent subpattern at offset 32 + +/(?+-a)/ +Failed: digit expected after (?+ at offset 3 + +/(?-+a)/ +Failed: unrecognized character after (? or (?- at offset 3 + +/(?(-1))/ +Failed: reference to non-existent subpattern at offset 6 + +/(?(+10))/ +Failed: reference to non-existent subpattern at offset 7 + +/(?(10))/ +Failed: reference to non-existent subpattern at offset 6 + +/(?(+2))()()/ + +/(?(2))()()/ + +/\k''/ +Failed: subpattern name expected at offset 3 + +/\k<>/ +Failed: subpattern name expected at offset 3 + +/\k{}/ +Failed: subpattern name expected at offset 3 + +/\k/ +Failed: \k is not followed by a braced, angle-bracketed, or quoted name at offset 1 + +/\kabc/ +Failed: \k is not followed by a braced, angle-bracketed, or quoted name at offset 1 + +/(?P=)/ +Failed: subpattern name expected at offset 4 + +/(?P>)/ +Failed: subpattern name expected at offset 4 + +/(?!\w)(?R)/ +Failed: recursive call could loop indefinitely at offset 9 + +/(?=\w)(?R)/ +Failed: recursive call could loop indefinitely at offset 9 + +/(?<!\w)(?R)/ +Failed: recursive call could loop indefinitely at offset 10 + +/(?<=\w)(?R)/ +Failed: recursive call could loop indefinitely at offset 10 + +/[[:foo:]]/ +Failed: unknown POSIX class name at offset 3 + +/[[:1234:]]/ +Failed: unknown POSIX class name at offset 3 + +/[[:f\oo:]]/ +Failed: unknown POSIX class name at offset 3 + +/[[: :]]/ +Failed: unknown POSIX class name at offset 3 + +/[[:...:]]/ +Failed: unknown POSIX class name at offset 3 + +/[[:l\ower:]]/ +Failed: unknown POSIX class name at offset 3 + +/[[:abc\:]]/ +Failed: unknown POSIX class name at offset 3 + +/[abc[:x\]pqr:]]/ +Failed: unknown POSIX class name at offset 6 + +/[[:a\dz:]]/ +Failed: unknown POSIX class name at offset 3 + +/(^(a|b\g<-1'c))/ +Failed: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number at offset 8 + +/^(?+1)(?<a>x|y){0}z/ + xzxx + 0: xz + yzyy + 0: yz + ** Failers +No match + xxz +No match + +/(\3)(\1)(a)/ + cat +No match + +/(\3)(\1)(a)/<JS> + cat + 0: a + 1: + 2: + 3: a + +/TA]/ + The ACTA] comes + 0: TA] + +/TA]/<JS> +Failed: ] is an invalid data character in JavaScript compatibility mode at offset 2 + +/(?2)[]a()b](abc)/ +Failed: reference to non-existent subpattern at offset 3 + +/(?2)[^]a()b](abc)/ +Failed: reference to non-existent subpattern at offset 3 + +/(?1)[]a()b](abc)/ + abcbabc + 0: abcbabc + 1: abc + ** Failers +No match + abcXabc +No match + +/(?1)[^]a()b](abc)/ + abcXabc + 0: abcXabc + 1: abc + ** Failers +No match + abcbabc +No match + +/(?2)[]a()b](abc)(xyz)/ + xyzbabcxyz + 0: xyzbabcxyz + 1: abc + 2: xyz + +/(?&N)[]a(?<N>)](?<M>abc)/ +Failed: reference to non-existent subpattern at offset 4 + +/(?&N)[]a(?<N>)](abc)/ +Failed: reference to non-existent subpattern at offset 4 + +/a[]b/ +Failed: missing terminating ] for character class at offset 4 + +/a[^]b/ +Failed: missing terminating ] for character class at offset 5 + +/a[]b/<JS> + ** Failers +No match + ab +No match + +/a[]+b/<JS> + ** Failers +No match + ab +No match + +/a[]*+b/<JS> + ** Failers +No match + ab +No match + +/a[^]b/<JS> + aXb + 0: aXb + a\nb + 0: a\x0ab + ** Failers +No match + ab +No match + +/a[^]+b/<JS> + aXb + 0: aXb + a\nX\nXb + 0: a\x0aX\x0aXb + ** Failers +No match + ab +No match + +/a(?!)b/BZ +------------------------------------------------------------------ + Bra + a + *FAIL + b + Ket + End +------------------------------------------------------------------ + +/(?!)?a/BZ +------------------------------------------------------------------ + Bra + Brazero + Assert not + Ket + a + Ket + End +------------------------------------------------------------------ + ab + 0: a + +/a(*FAIL)+b/ +Failed: nothing to repeat at offset 8 + +/(abc|pqr|123){0}[xyz]/SI +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 1 +Starting chars: x y z + +/(?(?=.*b)b|^)/CI +Capturing subpattern count = 0 +May match empty string +Options: +No first char +No need char + adc +--->adc + +0 ^ (?(?=.*b)b|^) + +2 ^ (?=.*b) + +5 ^ .* + +7 ^ ^ b + +7 ^ ^ b + +7 ^^ b + +7 ^ b ++11 ^ ^ ++12 ^ ) ++13 ^ + 0: + abc +--->abc + +0 ^ (?(?=.*b)b|^) + +2 ^ (?=.*b) + +5 ^ .* + +7 ^ ^ b + +7 ^ ^ b + +7 ^^ b + +8 ^ ^ ) + +9 ^ b + +0 ^ (?(?=.*b)b|^) + +2 ^ (?=.*b) + +5 ^ .* + +7 ^ ^ b + +7 ^^ b + +7 ^ b + +8 ^^ ) + +9 ^ b ++10 ^^ | ++13 ^^ + 0: b + +/(?(?=b).*b|^d)/I +Capturing subpattern count = 0 +No options +No first char +No need char + +/(?(?=.*b).*b|^d)/I +Capturing subpattern count = 0 +No options +No first char +No need char + +/xyz/C + xyz +--->xyz + +0 ^ x + +1 ^^ y + +2 ^ ^ z + +3 ^ ^ + 0: xyz + abcxyz +--->abcxyz + +0 ^ x + +1 ^^ y + +2 ^ ^ z + +3 ^ ^ + 0: xyz + abcxyz\Y +--->abcxyz + +0 ^ x + +0 ^ x + +0 ^ x + +0 ^ x + +1 ^^ y + +2 ^ ^ z + +3 ^ ^ + 0: xyz + ** Failers +No match + abc +No match + abc\Y +--->abc + +0 ^ x + +0 ^ x + +0 ^ x + +0 ^ x +No match + abcxypqr +No match + abcxypqr\Y +--->abcxypqr + +0 ^ x + +0 ^ x + +0 ^ x + +0 ^ x + +1 ^^ y + +2 ^ ^ z + +0 ^ x + +0 ^ x + +0 ^ x + +0 ^ x + +0 ^ x +No match + +/(*NO_START_OPT)xyz/C + abcxyz +--->abcxyz ++15 ^ x ++15 ^ x ++15 ^ x ++15 ^ x ++16 ^^ y ++17 ^ ^ z ++18 ^ ^ + 0: xyz + +/(*NO_AUTO_POSSESS)a+b/BZ +------------------------------------------------------------------ + Bra + a+ + b + Ket + End +------------------------------------------------------------------ + +/xyz/CY + abcxyz +--->abcxyz + +0 ^ x + +0 ^ x + +0 ^ x + +0 ^ x + +1 ^^ y + +2 ^ ^ z + +3 ^ ^ + 0: xyz + +/^"((?(?=[a])[^"])|b)*"$/C + "ab" +--->"ab" + +0 ^ ^ + +1 ^ " + +2 ^^ ((?(?=[a])[^"])|b)* + +3 ^^ (?(?=[a])[^"]) + +5 ^^ (?=[a]) + +8 ^^ [a] ++11 ^ ^ ) ++12 ^^ [^"] ++16 ^ ^ ) ++17 ^ ^ | + +3 ^ ^ (?(?=[a])[^"]) + +5 ^ ^ (?=[a]) + +8 ^ ^ [a] ++17 ^ ^ | ++21 ^ ^ " ++18 ^ ^ b ++19 ^ ^ ) + +3 ^ ^ (?(?=[a])[^"]) + +5 ^ ^ (?=[a]) + +8 ^ ^ [a] ++17 ^ ^ | ++21 ^ ^ " ++22 ^ ^ $ ++23 ^ ^ + 0: "ab" + 1: + +/^"((?(?=[a])[^"])|b)*"$/ + "ab" + 0: "ab" + 1: + +/^X(?5)(a)(?|(b)|(q))(c)(d)Y/ +Failed: reference to non-existent subpattern at offset 5 + +/^X(?&N)(a)(?|(b)|(q))(c)(d)(?<N>Y)/ + XYabcdY + 0: XYabcdY + 1: a + 2: b + 3: c + 4: d + 5: Y + +/Xa{2,4}b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/Xa{2,4}?b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/Xa{2,4}+b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/X\d{2,4}b/ + X\P +Partial match: X + X3\P +Partial match: X3 + X33\P +Partial match: X33 + X333\P +Partial match: X333 + X3333\P +Partial match: X3333 + +/X\d{2,4}?b/ + X\P +Partial match: X + X3\P +Partial match: X3 + X33\P +Partial match: X33 + X333\P +Partial match: X333 + X3333\P +Partial match: X3333 + +/X\d{2,4}+b/ + X\P +Partial match: X + X3\P +Partial match: X3 + X33\P +Partial match: X33 + X333\P +Partial match: X333 + X3333\P +Partial match: X3333 + +/X\D{2,4}b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/X\D{2,4}?b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/X\D{2,4}+b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/X[abc]{2,4}b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/X[abc]{2,4}?b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/X[abc]{2,4}+b/ + X\P +Partial match: X + Xa\P +Partial match: Xa + Xaa\P +Partial match: Xaa + Xaaa\P +Partial match: Xaaa + Xaaaa\P +Partial match: Xaaaa + +/X[^a]{2,4}b/ + X\P +Partial match: X + Xz\P +Partial match: Xz + Xzz\P +Partial match: Xzz + Xzzz\P +Partial match: Xzzz + Xzzzz\P +Partial match: Xzzzz + +/X[^a]{2,4}?b/ + X\P +Partial match: X + Xz\P +Partial match: Xz + Xzz\P +Partial match: Xzz + Xzzz\P +Partial match: Xzzz + Xzzzz\P +Partial match: Xzzzz + +/X[^a]{2,4}+b/ + X\P +Partial match: X + Xz\P +Partial match: Xz + Xzz\P +Partial match: Xzz + Xzzz\P +Partial match: Xzzz + Xzzzz\P +Partial match: Xzzzz + +/(Y)X\1{2,4}b/ + YX\P +Partial match: YX + YXY\P +Partial match: YXY + YXYY\P +Partial match: YXYY + YXYYY\P +Partial match: YXYYY + YXYYYY\P +Partial match: YXYYYY + +/(Y)X\1{2,4}?b/ + YX\P +Partial match: YX + YXY\P +Partial match: YXY + YXYY\P +Partial match: YXYY + YXYYY\P +Partial match: YXYYY + YXYYYY\P +Partial match: YXYYYY + +/(Y)X\1{2,4}+b/ + YX\P +Partial match: YX + YXY\P +Partial match: YXY + YXYY\P +Partial match: YXYY + YXYYY\P +Partial match: YXYYY + YXYYYY\P +Partial match: YXYYYY + +/\++\KZ|\d+X|9+Y/ + ++++123999\P +Partial match: 123999 + ++++123999Y\P + 0: 999Y + ++++Z1234\P + 0: Z + +/Z(*F)/ + Z\P +No match + ZA\P +No match + +/Z(?!)/ + Z\P +No match + ZA\P +No match + +/dog(sbody)?/ + dogs\P + 0: dog + dogs\P\P +Partial match: dogs + +/dog(sbody)??/ + dogs\P + 0: dog + dogs\P\P + 0: dog + +/dog|dogsbody/ + dogs\P + 0: dog + dogs\P\P + 0: dog + +/dogsbody|dog/ + dogs\P + 0: dog + dogs\P\P +Partial match: dogs + +/\bthe cat\b/ + the cat\P + 0: the cat + the cat\P\P +Partial match: the cat + +/abc/ + abc\P + 0: abc + abc\P\P + 0: abc + +/abc\K123/ + xyzabc123pqr + 0: 123 + xyzabc12\P +Partial match: abc12 + xyzabc12\P\P +Partial match: abc12 + +/(?<=abc)123/ + xyzabc123pqr + 0: 123 + xyzabc12\P +Partial match at offset 6: abc12 + xyzabc12\P\P +Partial match at offset 6: abc12 + +/\babc\b/ + +++abc+++ + 0: abc + +++ab\P +Partial match at offset 3: +ab + +++ab\P\P +Partial match at offset 3: +ab + +/(?&word)(?&element)(?(DEFINE)(?<element><[^m][^>]>[^<])(?<word>\w*+))/BZ +------------------------------------------------------------------ + Bra + Recurse + Recurse + Cond + Cond def + CBra 1 + < + [^m] + [^>] + > + [^<] + Ket + CBra 2 + \w*+ + Ket + Ket + Ket + End +------------------------------------------------------------------ + +/(?&word)(?&element)(?(DEFINE)(?<element><[^\d][^>]>[^<])(?<word>\w*+))/BZ +------------------------------------------------------------------ + Bra + Recurse + Recurse + Cond + Cond def + CBra 1 + < + [\x00-/:-\xff] (neg) + [^>] + > + [^<] + Ket + CBra 2 + \w*+ + Ket + Ket + Ket + End +------------------------------------------------------------------ + +/(ab)(x(y)z(cd(*ACCEPT)))pq/BZ +------------------------------------------------------------------ + Bra + CBra 1 + ab + Ket + CBra 2 + x + CBra 3 + y + Ket + z + CBra 4 + cd + Close 4 + Close 2 + *ACCEPT + Ket + Ket + pq + Ket + End +------------------------------------------------------------------ + +/abc\K/+ + abcdef + 0: + 0+ def + abcdef\N\N + 0: + 0+ def + xyzabcdef\N\N + 0: + 0+ def + ** Failers +No match + abcdef\N +No match + xyzabcdef\N +No match + +/^(?:(?=abc)|abc\K)/+ + abcdef + 0: + 0+ abcdef + abcdef\N\N + 0: + 0+ def + ** Failers +No match + abcdef\N +No match + +/a?b?/+ + xyz + 0: + 0+ xyz + xyzabc + 0: + 0+ xyzabc + xyzabc\N + 0: ab + 0+ c + xyzabc\N\N + 0: + 0+ yzabc + xyz\N\N + 0: + 0+ yz + ** Failers + 0: + 0+ ** Failers + xyz\N +No match + +/^a?b?/+ + xyz + 0: + 0+ xyz + xyzabc + 0: + 0+ xyzabc + ** Failers + 0: + 0+ ** Failers + xyzabc\N +No match + xyzabc\N\N +No match + xyz\N\N +No match + xyz\N +No match + +/^(?<name>a|b\g<name>c)/ + aaaa + 0: a + 1: a + bacxxx + 0: bac + 1: bac + bbaccxxx + 0: bbacc + 1: bbacc + bbbacccxx + 0: bbbaccc + 1: bbbaccc + +/^(?<name>a|b\g'name'c)/ + aaaa + 0: a + 1: a + bacxxx + 0: bac + 1: bac + bbaccxxx + 0: bbacc + 1: bbacc + bbbacccxx + 0: bbbaccc + 1: bbbaccc + +/^(a|b\g<1>c)/ + aaaa + 0: a + 1: a + bacxxx + 0: bac + 1: bac + bbaccxxx + 0: bbacc + 1: bbacc + bbbacccxx + 0: bbbaccc + 1: bbbaccc + +/^(a|b\g'1'c)/ + aaaa + 0: a + 1: a + bacxxx + 0: bac + 1: bac + bbaccxxx + 0: bbacc + 1: bbacc + bbbacccxx + 0: bbbaccc + 1: bbbaccc + +/^(a|b\g'-1'c)/ + aaaa + 0: a + 1: a + bacxxx + 0: bac + 1: bac + bbaccxxx + 0: bbacc + 1: bbacc + bbbacccxx + 0: bbbaccc + 1: bbbaccc + +/(^(a|b\g<-1>c))/ + aaaa + 0: a + 1: a + 2: a + bacxxx + 0: bac + 1: bac + 2: bac + bbaccxxx + 0: bbacc + 1: bbacc + 2: bbacc + bbbacccxx + 0: bbbaccc + 1: bbbaccc + 2: bbbaccc + +/(?-i:\g<name>)(?i:(?<name>a))/ + XaaX + 0: aa + 1: a + XAAX + 0: AA + 1: A + +/(?i:\g<name>)(?-i:(?<name>a))/ + XaaX + 0: aa + 1: a + ** Failers +No match + XAAX +No match + +/(?-i:\g<+1>)(?i:(a))/ + XaaX + 0: aa + 1: a + XAAX + 0: AA + 1: A + +/(?=(?<regex>(?#simplesyntax)\$(?<name>[a-zA-Z_\x{7f}-\x{ff}][a-zA-Z0-9_\x{7f}-\x{ff}]*)(?:\[(?<index>[a-zA-Z0-9_\x{7f}-\x{ff}]+|\$\g<name>)\]|->\g<name>(\(.*?\))?)?|(?#simple syntax withbraces)\$\{(?:\g<name>(?<indices>\[(?:\g<index>|'(?:\\.|[^'\\])*'|"(?:\g<regex>|\\.|[^"\\])*")\])?|\g<complex>|\$\{\g<complex>\})\}|(?#complexsyntax)\{(?<complex>\$(?<segment>\g<name>(\g<indices>*|\(.*?\))?)(?:->\g<segment>)*|\$\g<complex>|\$\{\g<complex>\})\}))\{/ + +/(?<n>a|b|c)\g<n>*/ + abc + 0: abc + 1: a + accccbbb + 0: accccbbb + 1: a + +/^X(?7)(a)(?|(b)|(q)(r)(s))(c)(d)(Y)/ + XYabcdY + 0: XYabcdY + 1: a + 2: b + 3: <unset> + 4: <unset> + 5: c + 6: d + 7: Y + +/(?<=b(?1)|zzz)(a)/ + xbaax + 0: a + 1: a + xzzzax + 0: a + 1: a + +/(a)(?<=b\1)/ +Failed: lookbehind assertion is not fixed length at offset 10 + +/(a)(?<=b+(?1))/ +Failed: lookbehind assertion is not fixed length at offset 13 + +/(a+)(?<=b(?1))/ +Failed: lookbehind assertion is not fixed length at offset 14 + +/(a(?<=b(?1)))/ +Failed: lookbehind assertion is not fixed length at offset 13 + +/(?<=b(?1))xyz/ +Failed: reference to non-existent subpattern at offset 8 + +/(?<=b(?1))xyz(b+)pqrstuvew/ +Failed: lookbehind assertion is not fixed length at offset 26 + +/(a|bc)\1/SI +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +No need char +Subject length lower bound = 2 +Starting chars: a b + +/(a|bc)\1{2,3}/SI +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +No need char +Subject length lower bound = 3 +Starting chars: a b + +/(a|bc)(?1)/SI +Capturing subpattern count = 1 +No options +No first char +No need char +Subject length lower bound = 2 +Starting chars: a b + +/(a|b\1)(a|b\1)/SI +Capturing subpattern count = 2 +Max back reference = 1 +No options +No first char +No need char +Subject length lower bound = 2 +Starting chars: a b + +/(a|b\1){2}/SI +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +No need char +Subject length lower bound = 2 +Starting chars: a b + +/(a|bbbb\1)(a|bbbb\1)/SI +Capturing subpattern count = 2 +Max back reference = 1 +No options +No first char +No need char +Subject length lower bound = 2 +Starting chars: a b + +/(a|bbbb\1){2}/SI +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +No need char +Subject length lower bound = 2 +Starting chars: a b + +/^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]/SI +Capturing subpattern count = 1 +Options: anchored +No first char +Need char = ':' +Subject length lower bound = 22 +No starting char list + +/<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>/isIS +Capturing subpattern count = 11 +Options: caseless dotall +First char = '<' +Need char = '>' +Subject length lower bound = 47 +No starting char list + +"(?>.*/)foo"SI +Capturing subpattern count = 0 +No options +No first char +Need char = 'o' +Subject length lower bound = 4 +No starting char list + +/(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /xSI +Capturing subpattern count = 0 +Options: extended +No first char +Need char = '-' +Subject length lower bound = 8 +No starting char list + +/(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/iSI +Capturing subpattern count = 1 +Options: caseless +No first char +No need char +Subject length lower bound = 1 +Starting chars: A B C a b c + +/(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/SI +Capturing subpattern count = 0 +No options +No first char +Need char = 'b' +Subject length lower bound = 41 +Starting chars: c d + +/<a[\s]+href[\s]*=[\s]* # find <a href= + ([\"\'])? # find single or double quote + (?(1) (.*?)\1 | ([^\s]+)) # if quote found, match up to next matching + # quote, otherwise match up to next space +/isxSI +Capturing subpattern count = 3 +Max back reference = 1 +Options: caseless extended dotall +First char = '<' +Need char = '=' +Subject length lower bound = 9 +No starting char list + +/^(?!:) # colon disallowed at start + (?: # start of item + (?: [0-9a-f]{1,4} | # 1-4 hex digits or + (?(1)0 | () ) ) # if null previously matched, fail; else null + : # followed by colon + ){1,7} # end item; 1-7 of them required + [0-9a-f]{1,4} $ # final hex number at end of string + (?(1)|.) # check that there was an empty component + /xiIS +Capturing subpattern count = 1 +Max back reference = 1 +Options: anchored caseless extended +No first char +Need char = ':' +Subject length lower bound = 2 +No starting char list + +/(?|(?<a>A)|(?<a>B))/I +Capturing subpattern count = 1 +Named capturing subpatterns: + a 1 +No options +No first char +No need char + AB\Ca + 0: A + 1: A + C A (1) a + BA\Ca + 0: B + 1: B + C B (1) a + +/(?|(?<a>A)|(?<b>B))/ +Failed: different names for subpatterns of the same number are not allowed at offset 15 + +/(?:a(?<quote> (?<apostrophe>')|(?<realquote>")) | + b(?<quote> (?<apostrophe>')|(?<realquote>")) ) + (?('quote')[a-z]+|[0-9]+)/JIx +Capturing subpattern count = 6 +Max back reference = 1 +Named capturing subpatterns: + apostrophe 2 + apostrophe 5 + quote 1 + quote 4 + realquote 3 + realquote 6 +Options: extended dupnames +No first char +No need char + a"aaaaa + 0: a"aaaaa + 1: " + 2: <unset> + 3: " + b"aaaaa + 0: b"aaaaa + 1: <unset> + 2: <unset> + 3: <unset> + 4: " + 5: <unset> + 6: " + ** Failers +No match + b"11111 +No match + a"11111 +No match + +/^(?|(a)(b)(c)(?<D>d)|(?<D>e)) (?('D')X|Y)/JDZx +------------------------------------------------------------------ + Bra + ^ + Bra + CBra 1 + a + Ket + CBra 2 + b + Ket + CBra 3 + c + Ket + CBra 4 + d + Ket + Alt + CBra 1 + e + Ket + Ket + Cond + Cond ref <D>2 + X + Alt + Y + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 4 +Max back reference = 4 +Named capturing subpatterns: + D 4 + D 1 +Options: anchored extended dupnames +No first char +No need char + abcdX + 0: abcdX + 1: a + 2: b + 3: c + 4: d + eX + 0: eX + 1: e + ** Failers +No match + abcdY +No match + ey +No match + +/(?<A>a) (b)(c) (?<A>d (?(R&A)$ | (?4)) )/JDZx +------------------------------------------------------------------ + Bra + CBra 1 + a + Ket + CBra 2 + b + Ket + CBra 3 + c + Ket + CBra 4 + d + Cond + Cond recurse <A>2 + $ + Alt + Recurse + Ket + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 4 +Max back reference = 1 +Named capturing subpatterns: + A 1 + A 4 +Options: extended dupnames +First char = 'a' +Need char = 'd' + abcdd + 0: abcdd + 1: a + 2: b + 3: c + 4: dd + ** Failers +No match + abcdde +No match + +/abcd*/ + xxxxabcd\P + 0: abcd + xxxxabcd\P\P +Partial match: abcd + +/abcd*/i + xxxxabcd\P + 0: abcd + xxxxabcd\P\P +Partial match: abcd + XXXXABCD\P + 0: ABCD + XXXXABCD\P\P +Partial match: ABCD + +/abc\d*/ + xxxxabc1\P + 0: abc1 + xxxxabc1\P\P +Partial match: abc1 + +/(a)bc\1*/ + xxxxabca\P + 0: abca + 1: a + xxxxabca\P\P +Partial match: abca + +/abc[de]*/ + xxxxabcde\P + 0: abcde + xxxxabcde\P\P +Partial match: abcde + +/-- This is not in the Perl-compatible test because Perl seems currently to be + broken and not behaving as specified in that it *does* bumpalong after + hitting (*COMMIT). --/ + +/(?1)(A(*COMMIT)|B)D/ + ABD + 0: ABD + 1: B + XABD + 0: ABD + 1: B + BAD + 0: BAD + 1: A + ABXABD + 0: ABD + 1: B + ** Failers +No match + ABX +No match + BAXBAD +No match + +/(\3)(\1)(a)/<JS> + cat + 0: a + 1: + 2: + 3: a + +/(\3)(\1)(a)/SI<JS> +Capturing subpattern count = 3 +Max back reference = 3 +Options: +No first char +Need char = 'a' +Subject length lower bound = 1 +No starting char list + cat + 0: a + 1: + 2: + 3: a + +/(\3)(\1)(a)/SI +Capturing subpattern count = 3 +Max back reference = 3 +No options +No first char +Need char = 'a' +Subject length lower bound = 3 +No starting char list + cat +No match + +/i(?(DEFINE)(?<s>a))/SI +Capturing subpattern count = 1 +Named capturing subpatterns: + s 1 +No options +First char = 'i' +No need char +Subject length lower bound = 1 +No starting char list + i + 0: i + +/()i(?(1)a)/SI +Capturing subpattern count = 1 +Max back reference = 1 +No options +No first char +Need char = 'i' +Subject length lower bound = 1 +Starting chars: i + ia + 0: ia + 1: + +/(?i)a(?-i)b|c/BZ +------------------------------------------------------------------ + Bra + /i a + b + Alt + c + Ket + End +------------------------------------------------------------------ + XabX + 0: ab + XAbX + 0: Ab + CcC + 0: c + ** Failers +No match + XABX +No match + +/(?i)a(?s)b|c/BZ +------------------------------------------------------------------ + Bra + /i ab + Alt + /i c + Ket + End +------------------------------------------------------------------ + +/(?i)a(?s-i)b|c/BZ +------------------------------------------------------------------ + Bra + /i a + b + Alt + c + Ket + End +------------------------------------------------------------------ + +/^(ab(c\1)d|x){2}$/BZ +------------------------------------------------------------------ + Bra + ^ + Once + CBra 1 + ab + CBra 2 + c + \1 + Ket + d + Alt + x + Ket + Ket + Once + CBra 1 + ab + CBra 2 + c + \1 + Ket + d + Alt + x + Ket + Ket + $ + Ket + End +------------------------------------------------------------------ + xabcxd + 0: xabcxd + 1: abcxd + 2: cx + +/^(?&t)*+(?(DEFINE)(?<t>.))$/BZ +------------------------------------------------------------------ + Bra + ^ + Braposzero + SBraPos + Recurse + KetRpos + Cond + Cond def + CBra 1 + Any + Ket + Ket + $ + Ket + End +------------------------------------------------------------------ + +/^(?&t)*(?(DEFINE)(?<t>.))$/BZ +------------------------------------------------------------------ + Bra + ^ + Brazero + Once + Recurse + KetRmax + Cond + Cond def + CBra 1 + Any + Ket + Ket + $ + Ket + End +------------------------------------------------------------------ + +/ -- This one is here because Perl gives the match as "b" rather than "ab". I + believe this to be a Perl bug. --/ + +/(?>a\Kb)z|(ab)/ + ab + 0: ab + 1: ab + +/(?P<L1>(?P<L2>0|)|(?P>L2)(?P>L1))/ +Failed: recursive call could loop indefinitely at offset 31 + +/abc(*MARK:)pqr/ +Failed: (*MARK) must have an argument at offset 10 + +/abc(*:)pqr/ +Failed: (*MARK) must have an argument at offset 6 + +/abc(*FAIL:123)xyz/ +Failed: an argument is not allowed for (*ACCEPT), (*FAIL), or (*COMMIT) at offset 13 + +/--- This should, and does, fail. In Perl, it does not, which I think is a + bug because replacing the B in the pattern by (B|D) does make it fail. ---/ + +/A(*COMMIT)B/+K + ACABX +No match + +/--- These should be different, but in Perl they are not, which I think + is a bug in Perl. ---/ + +/A(*THEN)B|A(*THEN)C/K + AC + 0: AC + +/A(*PRUNE)B|A(*PRUNE)C/K + AC +No match + +/--- Mark names can be duplicated. Perl doesn't give a mark for this one, +though PCRE does. ---/ + +/^A(*:A)B|^X(*:A)Y/K + ** Failers +No match + XAQQ +No match, mark = A + +/--- COMMIT at the start of a pattern should be the same as an anchor. Perl +optimizations defeat this. So does the PCRE optimization unless we disable it +with \Y. ---/ + +/(*COMMIT)ABC/ + ABCDEFG + 0: ABC + ** Failers +No match + DEFGABC\Y +No match + +/^(ab (c+(*THEN)cd) | xyz)/x + abcccd +No match + +/^(ab (c+(*PRUNE)cd) | xyz)/x + abcccd +No match + +/^(ab (c+(*FAIL)cd) | xyz)/x + abcccd +No match + +/--- Perl gets some of these wrong ---/ + +/(?>.(*ACCEPT))*?5/ + abcde + 0: a + +/(.(*ACCEPT))*?5/ + abcde + 0: a + 1: a + +/(.(*ACCEPT))5/ + abcde + 0: a + 1: a + +/(.(*ACCEPT))*5/ + abcde + 0: a + 1: a + +/A\NB./BZ +------------------------------------------------------------------ + Bra + A + Any + B + Any + Ket + End +------------------------------------------------------------------ + ACBD + 0: ACBD + *** Failers +No match + A\nB +No match + ACB\n +No match + +/A\NB./sBZ +------------------------------------------------------------------ + Bra + A + Any + B + AllAny + Ket + End +------------------------------------------------------------------ + ACBD + 0: ACBD + ACB\n + 0: ACB\x0a + *** Failers +No match + A\nB +No match + +/A\NB/<crlf> + A\nB + 0: A\x0aB + A\rB + 0: A\x0dB + ** Failers +No match + A\r\nB +No match + +/\R+b/BZ +------------------------------------------------------------------ + Bra + \R++ + b + Ket + End +------------------------------------------------------------------ + +/\R+\n/BZ +------------------------------------------------------------------ + Bra + \R+ + \x0a + Ket + End +------------------------------------------------------------------ + +/\R+\d/BZ +------------------------------------------------------------------ + Bra + \R++ + \d + Ket + End +------------------------------------------------------------------ + +/\d*\R/BZ +------------------------------------------------------------------ + Bra + \d*+ + \R + Ket + End +------------------------------------------------------------------ + +/\s*\R/BZ +------------------------------------------------------------------ + Bra + \s* + \R + Ket + End +------------------------------------------------------------------ + \x20\x0a + 0: \x0a + \x20\x0d + 0: \x0d + \x20\x0d\x0a + 0: \x0d\x0a + +/\S*\R/BZ +------------------------------------------------------------------ + Bra + \S*+ + \R + Ket + End +------------------------------------------------------------------ + a\x0a + 0: a\x0a + +/X\h*\R/BZ +------------------------------------------------------------------ + Bra + X + \h*+ + \R + Ket + End +------------------------------------------------------------------ + X\x20\x0a + 0: X \x0a + +/X\H*\R/BZ +------------------------------------------------------------------ + Bra + X + \H* + \R + Ket + End +------------------------------------------------------------------ + X\x0d\x0a + 0: X\x0d\x0a + +/X\H+\R/BZ +------------------------------------------------------------------ + Bra + X + \H+ + \R + Ket + End +------------------------------------------------------------------ + X\x0d\x0a + 0: X\x0d\x0a + +/X\H++\R/BZ +------------------------------------------------------------------ + Bra + X + \H++ + \R + Ket + End +------------------------------------------------------------------ + X\x0d\x0a +No match + +/(?<=abc)def/ + abc\P\P +Partial match at offset 3: abc + +/abc$/ + abc + 0: abc + abc\P + 0: abc + abc\P\P +Partial match: abc + +/abc$/m + abc + 0: abc + abc\n + 0: abc + abc\P\P +Partial match: abc + abc\n\P\P + 0: abc + abc\P + 0: abc + abc\n\P + 0: abc + +/abc\z/ + abc + 0: abc + abc\P + 0: abc + abc\P\P +Partial match: abc + +/abc\Z/ + abc + 0: abc + abc\P + 0: abc + abc\P\P +Partial match: abc + +/abc\b/ + abc + 0: abc + abc\P + 0: abc + abc\P\P +Partial match: abc + +/abc\B/ + abc +No match + abc\P +Partial match: abc + abc\P\P +Partial match: abc + +/.+/ + abc\>0 + 0: abc + abc\>1 + 0: bc + abc\>2 + 0: c + abc\>3 +No match + abc\>4 +Error -24 (bad offset value) + abc\>-4 +Error -24 (bad offset value) + +/^\cģ/ +Failed: \c must be followed by an ASCII character at offset 3 + +/(?P<abn>(?P=abn)xxx)/BZ +------------------------------------------------------------------ + Bra + Once + CBra 1 + \1 + xxx + Ket + Ket + Ket + End +------------------------------------------------------------------ + +/(a\1z)/BZ +------------------------------------------------------------------ + Bra + Once + CBra 1 + a + \1 + z + Ket + Ket + Ket + End +------------------------------------------------------------------ + +/(?P<abn>(?P=abn)(?<badstufxxx)/BZ +Failed: syntax error in subpattern name (missing terminator) at offset 29 + +/(?P<abn>(?P=axn)xxx)/BZ +Failed: reference to non-existent subpattern at offset 15 + +/(?P<abn>(?P=axn)xxx)(?<axn>yy)/BZ +------------------------------------------------------------------ + Bra + CBra 1 + \2 + xxx + Ket + CBra 2 + yy + Ket + Ket + End +------------------------------------------------------------------ + +/-- These tests are here because Perl gets the first one wrong. --/ + +/(\R*)(.)/s + \r\n + 0: \x0d + 1: + 2: \x0d + \r\r\n\n\r + 0: \x0d\x0d\x0a\x0a\x0d + 1: \x0d\x0d\x0a\x0a + 2: \x0d + \r\r\n\n\r\n + 0: \x0d\x0d\x0a\x0a\x0d + 1: \x0d\x0d\x0a\x0a + 2: \x0d + +/(\R)*(.)/s + \r\n + 0: \x0d + 1: <unset> + 2: \x0d + \r\r\n\n\r + 0: \x0d\x0d\x0a\x0a\x0d + 1: \x0a + 2: \x0d + \r\r\n\n\r\n + 0: \x0d\x0d\x0a\x0a\x0d + 1: \x0a + 2: \x0d + +/((?>\r\n|\n|\x0b|\f|\r|\x85)*)(.)/s + \r\n + 0: \x0d + 1: + 2: \x0d + \r\r\n\n\r + 0: \x0d\x0d\x0a\x0a\x0d + 1: \x0d\x0d\x0a\x0a + 2: \x0d + \r\r\n\n\r\n + 0: \x0d\x0d\x0a\x0a\x0d + 1: \x0d\x0d\x0a\x0a + 2: \x0d + +/-- --/ + +/^abc$/BZ +------------------------------------------------------------------ + Bra + ^ + abc + $ + Ket + End +------------------------------------------------------------------ + +/^abc$/BZm +------------------------------------------------------------------ + Bra + /m ^ + abc + /m $ + Ket + End +------------------------------------------------------------------ + +/^(a)*+(\w)/S + aaaaX + 0: aaaaX + 1: a + 2: X + ** Failers +No match + aaaa +No match + +/^(?:a)*+(\w)/S + aaaaX + 0: aaaaX + 1: X + ** Failers +No match + aaaa +No match + +/(a)++1234/SDZ +------------------------------------------------------------------ + Bra + CBraPos 1 + a + KetRpos + 1234 + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = '4' +Subject length lower bound = 5 +No starting char list + +/([abc])++1234/SI +Capturing subpattern count = 1 +No options +No first char +Need char = '4' +Subject length lower bound = 5 +Starting chars: a b c + +/(?<=(abc)+)X/ +Failed: lookbehind assertion is not fixed length at offset 10 + +/(^ab)/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + +/(^ab)++/I +Capturing subpattern count = 1 +Options: anchored +No first char +No need char + +/(^ab|^)+/I +Capturing subpattern count = 1 +May match empty string +Options: anchored +No first char +No need char + +/(^ab|^)++/I +Capturing subpattern count = 1 +May match empty string +Options: anchored +No first char +No need char + +/(?:^ab)/I +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/(?:^ab)++/I +Capturing subpattern count = 0 +Options: anchored +No first char +No need char + +/(?:^ab|^)+/I +Capturing subpattern count = 0 +May match empty string +Options: anchored +No first char +No need char + +/(?:^ab|^)++/I +Capturing subpattern count = 0 +May match empty string +Options: anchored +No first char +No need char + +/(.*ab)/I +Capturing subpattern count = 1 +No options +First char at start or follows newline +Need char = 'b' + +/(.*ab)++/I +Capturing subpattern count = 1 +No options +First char at start or follows newline +Need char = 'b' + +/(.*ab|.*)+/I +Capturing subpattern count = 1 +May match empty string +No options +First char at start or follows newline +No need char + +/(.*ab|.*)++/I +Capturing subpattern count = 1 +May match empty string +No options +First char at start or follows newline +No need char + +/(?:.*ab)/I +Capturing subpattern count = 0 +No options +First char at start or follows newline +Need char = 'b' + +/(?:.*ab)++/I +Capturing subpattern count = 0 +No options +First char at start or follows newline +Need char = 'b' + +/(?:.*ab|.*)+/I +Capturing subpattern count = 0 +May match empty string +No options +First char at start or follows newline +No need char + +/(?:.*ab|.*)++/I +Capturing subpattern count = 0 +May match empty string +No options +First char at start or follows newline +No need char + +/(?=a)[bcd]/I +Capturing subpattern count = 0 +No options +First char = 'a' +No need char + +/((?=a))[bcd]/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/((?=a))+[bcd]/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/((?=a))++[bcd]/I +Capturing subpattern count = 1 +No options +First char = 'a' +No need char + +/(?=a+)[bcd]/iI +Capturing subpattern count = 0 +Options: caseless +First char = 'a' (caseless) +No need char + +/(?=a+?)[bcd]/iI +Capturing subpattern count = 0 +Options: caseless +First char = 'a' (caseless) +No need char + +/(?=a++)[bcd]/iI +Capturing subpattern count = 0 +Options: caseless +First char = 'a' (caseless) +No need char + +/(?=a{3})[bcd]/iI +Capturing subpattern count = 0 +Options: caseless +First char = 'a' (caseless) +Need char = 'a' (caseless) + +/(abc)\1+/S + +/-- Perl doesn't get these right IMO (the 3rd is PCRE-specific) --/ + +/(?1)(?:(b(*ACCEPT))){0}/ + b + 0: b + +/(?1)(?:(b(*ACCEPT))){0}c/ + bc + 0: bc + ** Failers +No match + b +No match + +/(?1)(?:((*ACCEPT))){0}c/ + c + 0: c + c\N + 0: c + +/^.*?(?(?=a)a|b(*THEN)c)/ + ba +No match + +/^.*?(?(?=a)a|bc)/ + ba + 0: ba + +/^.*?(?(?=a)a(*THEN)b|c)/ + ac +No match + +/^.*?(?(?=a)a(*THEN)b)c/ + ac +No match + +/^.*?(a(*THEN)b)c/ + aabc +No match + +/^.*? (?1) c (?(DEFINE)(a(*THEN)b))/x + aabc + 0: aabc + +/^.*?(a(*THEN)b|z)c/ + aabc + 0: aabc + 1: ab + +/^.*?(z|a(*THEN)b)c/ + aabc + 0: aabc + 1: ab + +/-- --/ + +/-- These studied versions are here because they are not Perl-compatible; the + studying means the mark is not seen. --/ + +/(*MARK:A)(*SKIP:B)(C|X)/KS + C + 0: C + 1: C +MK: A + D +No match, mark = A + +/(*:A)A+(*SKIP:A)(B|Z)/KS + AAAC +No match, mark = A + +/-- --/ + +"(?=a*(*ACCEPT)b)c" + c + 0: c + c\N + 0: c + +/(?1)c(?(DEFINE)((*ACCEPT)b))/ + c + 0: c + c\N + 0: c + +/(?>(*ACCEPT)b)c/ + c + 0: + c\N +No match + +/(?:(?>(a)))+a%/++ + %aa% + 0: aa% + 0+ + 1: a + 1+ a% + +/(a)b|ac/++SS + ac\O3 + 0: ac + 0+ + +/(a)(b)x|abc/++ + abc\O6 + 0: abc + 0+ + +/(a)bc|(a)(b)\2/ + \O3abc +Matched, but too many substrings + 0: abc + \O4abc +Matched, but too many substrings + 0: abc + +/(?(DEFINE)(a(?2)|b)(b(?1)|a))(?:(?1)|(?2))/SI +Capturing subpattern count = 2 +No options +No first char +No need char +Subject length lower bound = 1 +No starting char list + +/(a(?2)|b)(b(?1)|a)(?:(?1)|(?2))/SI +Capturing subpattern count = 2 +No options +No first char +No need char +Subject length lower bound = 3 +Starting chars: a b + +/(a(?2)|b)(b(?1)|a)(?1)(?2)/SI +Capturing subpattern count = 2 +No options +No first char +No need char +Subject length lower bound = 4 +Starting chars: a b + +/(abc)(?1)/SI +Capturing subpattern count = 1 +No options +First char = 'a' +Need char = 'c' +Subject length lower bound = 6 +No starting char list + +/^(?>a)++/ + aa\M +Minimum match() limit = 5 +Minimum match() recursion limit = 2 + 0: aa + aaaaaaaaa\M +Minimum match() limit = 12 +Minimum match() recursion limit = 2 + 0: aaaaaaaaa + +/(a)(?1)++/ + aa\M +Minimum match() limit = 7 +Minimum match() recursion limit = 4 + 0: aa + 1: a + aaaaaaaaa\M +Minimum match() limit = 21 +Minimum match() recursion limit = 4 + 0: aaaaaaaaa + 1: a + +/(?:(foo)|(bar)|(baz))X/SS= + bazfooX + 0: fooX + 1: foo + 2: <unset> + 3: <unset> + foobazbarX + 0: barX + 1: <unset> + 2: bar + 3: <unset> + barfooX + 0: fooX + 1: foo + 2: <unset> + 3: <unset> + bazX + 0: bazX + 1: <unset> + 2: <unset> + 3: baz + foobarbazX + 0: bazX + 1: <unset> + 2: <unset> + 3: baz + bazfooX\O0 +Matched, but too many substrings + bazfooX\O2 +Matched, but too many substrings + 0: fooX + bazfooX\O4 +Matched, but too many substrings + 0: fooX + 1: <unset> + bazfooX\O6 +Matched, but too many substrings + 0: fooX + 1: foo + 2: <unset> + bazfooX\O8 +Matched, but too many substrings + 0: fooX + 1: foo + 2: <unset> + 3: <unset> + bazfooX\O10 + 0: fooX + 1: foo + 2: <unset> + 3: <unset> + +/(?=abc){3}abc/BZ +------------------------------------------------------------------ + Bra + Assert + abc + Ket + abc + Ket + End +------------------------------------------------------------------ + +/(?=abc)+abc/BZ +------------------------------------------------------------------ + Bra + Assert + abc + Ket + abc + Ket + End +------------------------------------------------------------------ + +/(?=abc)++abc/BZ +------------------------------------------------------------------ + Bra + Assert + abc + Ket + abc + Ket + End +------------------------------------------------------------------ + +/(?=abc){0}xyz/BZ +------------------------------------------------------------------ + Bra + Skip zero + Assert + abc + Ket + xyz + Ket + End +------------------------------------------------------------------ + +/(?=(a))?./BZ +------------------------------------------------------------------ + Bra + Brazero + Assert + CBra 1 + a + Ket + Ket + Any + Ket + End +------------------------------------------------------------------ + +/(?=(a))??./BZ +------------------------------------------------------------------ + Bra + Braminzero + Assert + CBra 1 + a + Ket + Ket + Any + Ket + End +------------------------------------------------------------------ + +/^(?=(a)){0}b(?1)/BZ +------------------------------------------------------------------ + Bra + ^ + Skip zero + Assert + CBra 1 + a + Ket + Ket + b + Recurse + Ket + End +------------------------------------------------------------------ + +/(?(DEFINE)(a))?b(?1)/BZ +------------------------------------------------------------------ + Bra + Cond + Cond def + CBra 1 + a + Ket + Ket + b + Recurse + Ket + End +------------------------------------------------------------------ + +/^(?=(?1))?[az]([abc])d/BZ +------------------------------------------------------------------ + Bra + ^ + Brazero + Assert + Recurse + Ket + [az] + CBra 1 + [a-c] + Ket + d + Ket + End +------------------------------------------------------------------ + +/^(?!a){0}\w+/BZ +------------------------------------------------------------------ + Bra + ^ + Skip zero + Assert not + a + Ket + \w++ + Ket + End +------------------------------------------------------------------ + +/(?<=(abc))?xyz/BZ +------------------------------------------------------------------ + Bra + Brazero + AssertB + Reverse + CBra 1 + abc + Ket + Ket + xyz + Ket + End +------------------------------------------------------------------ + +/[:a[:abc]b:]/BZ +------------------------------------------------------------------ + Bra + [:[a-c] + b:] + Ket + End +------------------------------------------------------------------ + +/((?2))((?1))/SS + abc +Error -26 (nested recursion at the same subject position) + +/((?(R2)a+|(?1)b))/SS + aaaabcde +Error -26 (nested recursion at the same subject position) + +/(?(R)a*(?1)|((?R))b)/SS + aaaabcde +Error -26 (nested recursion at the same subject position) + +/(a+|(?R)b)/ +Failed: recursive call could loop indefinitely at offset 7 + +/^(a(*:A)(d|e(*:B))z|aeq)/C + adz +--->adz + +0 ^ ^ + +1 ^ (a(*:A)(d|e(*:B))z|aeq) + +2 ^ a + +3 ^^ (*:A) + +8 ^^ (d|e(*:B)) +Latest Mark: A + +9 ^^ d ++10 ^ ^ | ++18 ^ ^ z ++19 ^ ^ | ++24 ^ ^ + 0: adz + 1: adz + 2: d + aez +--->aez + +0 ^ ^ + +1 ^ (a(*:A)(d|e(*:B))z|aeq) + +2 ^ a + +3 ^^ (*:A) + +8 ^^ (d|e(*:B)) +Latest Mark: A + +9 ^^ d ++11 ^^ e ++12 ^ ^ (*:B) ++17 ^ ^ ) +Latest Mark: B ++18 ^ ^ z ++19 ^ ^ | ++24 ^ ^ + 0: aez + 1: aez + 2: e + aeqwerty +--->aeqwerty + +0 ^ ^ + +1 ^ (a(*:A)(d|e(*:B))z|aeq) + +2 ^ a + +3 ^^ (*:A) + +8 ^^ (d|e(*:B)) +Latest Mark: A + +9 ^^ d ++11 ^^ e ++12 ^ ^ (*:B) ++17 ^ ^ ) +Latest Mark: B ++18 ^ ^ z ++20 ^ a ++21 ^^ e ++22 ^ ^ q ++23 ^ ^ ) ++24 ^ ^ + 0: aeq + 1: aeq + +/.(*F)/ + \P\Pabc +No match + +/\btype\b\W*?\btext\b\W*?\bjavascript\b/IS +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +First char = 't' +Need char = 't' +Subject length lower bound = 18 +No starting char list + +/\btype\b\W*?\btext\b\W*?\bjavascript\b|\burl\b\W*?\bshell:|<input\b.*?\btype\b\W*?\bimage\b|\bonkeyup\b\W*?\=/IS +Capturing subpattern count = 0 +Max lookbehind = 1 +No options +No first char +No need char +Subject length lower bound = 8 +Starting chars: < o t u + +/a(*SKIP)c|b(*ACCEPT)|/+S!I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char +Subject length lower bound = -1 +No starting char list + a + 0: + 0+ + +/a(*SKIP)c|b(*ACCEPT)cd(*ACCEPT)|x/SI +Capturing subpattern count = 0 +No options +No first char +No need char +Subject length lower bound = -1 +Starting chars: a b x + ax + 0: x + +'a*(*ACCEPT)b'+ + \N\N +No match + abc\N\N + 0: a + 0+ bc + bbb\N\N + 0: + 0+ bb + +/(*ACCEPT)a/+I +Capturing subpattern count = 0 +No options +No first char +No need char + bax + 0: + 0+ bax + +/z(*ACCEPT)a/+I +Capturing subpattern count = 0 +No options +First char = 'z' +No need char + baxzbx + 0: z + 0+ bx + +/a(?:.)*?a/ims + \Mabbbbbbbbbbbbbbbbbbbbba +Minimum match() limit = 65 +Minimum match() recursion limit = 2 + 0: abbbbbbbbbbbbbbbbbbbbba + +/a(?:.(*THEN))*?a/ims + \Mabbbbbbbbbbbbbbbbbbbbba +Minimum match() limit = 86 +Minimum match() recursion limit = 45 + 0: abbbbbbbbbbbbbbbbbbbbba + +/a(?:.(*THEN:ABC))*?a/ims + \Mabbbbbbbbbbbbbbbbbbbbba +Minimum match() limit = 86 +Minimum match() recursion limit = 45 + 0: abbbbbbbbbbbbbbbbbbbbba + +/^(?>a+)(?>(z+))\w/BZ +------------------------------------------------------------------ + Bra + ^ + Once_NC + a++ + Ket + Once + CBra 1 + z++ + Ket + Ket + \w + Ket + End +------------------------------------------------------------------ + aaaazzzzb + 0: aaaazzzzb + 1: zzzz + ** Failers +No match + aazz +No match + +/(.)(\1|a(?2))/ + bab + 0: bab + 1: b + 2: ab + +/\1|(.)(?R)\1/ + cbbbc + 0: cbbbc + 1: c + +/(.)((?(1)c|a)|a(?2))/ + baa +No match + +/(?P<abn>(?P=abn)xxx)/BZ +------------------------------------------------------------------ + Bra + Once + CBra 1 + \1 + xxx + Ket + Ket + Ket + End +------------------------------------------------------------------ + +/(a\1z)/BZ +------------------------------------------------------------------ + Bra + Once + CBra 1 + a + \1 + z + Ket + Ket + Ket + End +------------------------------------------------------------------ + +/^(?>a+)(?>b+)(?>c+)(?>d+)(?>e+)/ + \Maabbccddee +Minimum match() limit = 7 +Minimum match() recursion limit = 2 + 0: aabbccddee + +/^(?>(a+))(?>(b+))(?>(c+))(?>(d+))(?>(e+))/ + \Maabbccddee +Minimum match() limit = 17 +Minimum match() recursion limit = 16 + 0: aabbccddee + 1: aa + 2: bb + 3: cc + 4: dd + 5: ee + +/^(?>(a+))(?>b+)(?>(c+))(?>d+)(?>(e+))/ + \Maabbccddee +Minimum match() limit = 13 +Minimum match() recursion limit = 10 + 0: aabbccddee + 1: aa + 2: cc + 3: ee + +/^a\x41z/<JS> + aAz + 0: aAz + *** Failers +No match + ax41z +No match + +/^a[m\x41]z/<JS> + aAz + 0: aAz + +/^a\x1z/<JS> + ax1z + 0: ax1z + +/^a\u0041z/<JS> + aAz + 0: aAz + *** Failers +No match + au0041z +No match + +/^a[m\u0041]z/<JS> + aAz + 0: aAz + +/^a\u041z/<JS> + au041z + 0: au041z + *** Failers +No match + aAz +No match + +/^a\U0041z/<JS> + aU0041z + 0: aU0041z + *** Failers +No match + aAz +No match + +/(?(?=c)c|d)++Y/BZ +------------------------------------------------------------------ + Bra + BraPos + Cond + Assert + c + Ket + c + Alt + d + Ket + KetRpos + Y + Ket + End +------------------------------------------------------------------ + +/(?(?=c)c|d)*+Y/BZ +------------------------------------------------------------------ + Bra + Braposzero + BraPos + Cond + Assert + c + Ket + c + Alt + d + Ket + KetRpos + Y + Ket + End +------------------------------------------------------------------ + +/a[\NB]c/ +Failed: \N is not supported in a class at offset 3 + +/a[B-\Nc]/ +Failed: invalid range in character class at offset 5 + +/a[B\Nc]/ +Failed: \N is not supported in a class at offset 4 + +/(a)(?2){0,1999}?(b)/ + +/(a)(?(DEFINE)(b))(?2){0,1999}?(?2)/ + +/--- This test, with something more complicated than individual letters, causes +different behaviour in Perl. Perhaps it disables some optimization; no tag is +passed back for the failures, whereas in PCRE there is a tag. ---/ + +/(A|P)(*:A)(B|P) | (X|P)(X|P)(*:B)(Y|P)/xK + AABC + 0: AB + 1: A + 2: B +MK: A + XXYZ + 0: XXY + 1: <unset> + 2: <unset> + 3: X + 4: X + 5: Y +MK: B + ** Failers +No match + XAQQ +No match, mark = A + XAQQXZZ +No match, mark = A + AXQQQ +No match, mark = A + AXXQQQ +No match, mark = B + +/-- Perl doesn't give marks for these, though it does if the alternatives are +replaced by single letters. --/ + +/(b|q)(*:m)f|a(*:n)w/K + aw + 0: aw +MK: n + ** Failers +No match, mark = n + abc +No match, mark = m + +/(q|b)(*:m)f|a(*:n)w/K + aw + 0: aw +MK: n + ** Failers +No match, mark = n + abc +No match, mark = m + +/-- After a partial match, the behaviour is as for a failure. --/ + +/^a(*:X)bcde/K + abc\P +Partial match, mark=X: abc + +/-- These are here because Perl doesn't return a mark, except for the first --/ + +/(?=(*:x))(q|)/K+ + abc + 0: + 0+ abc + 1: +MK: x + +/(?=(*:x))((*:y)q|)/K+ + abc + 0: + 0+ abc + 1: +MK: x + +/(?=(*:x))(?:(*:y)q|)/K+ + abc + 0: + 0+ abc +MK: x + +/(?=(*:x))(?>(*:y)q|)/K+ + abc + 0: + 0+ abc +MK: x + +/(?=a(*:x))(?!a(*:y)c)/K+ + ab + 0: + 0+ ab +MK: x + +/(?=a(*:x))(?=a(*:y)c|)/K+ + ab + 0: + 0+ ab +MK: x + +/(..)\1/ + ab\P +Partial match: ab + aba\P +Partial match: aba + abab\P + 0: abab + 1: ab + +/(..)\1/i + ab\P +Partial match: ab + abA\P +Partial match: abA + aBAb\P + 0: aBAb + 1: aB + +/(..)\1{2,}/ + ab\P +Partial match: ab + aba\P +Partial match: aba + abab\P +Partial match: abab + ababa\P +Partial match: ababa + ababab\P + 0: ababab + 1: ab + ababab\P\P +Partial match: ababab + abababa\P + 0: ababab + 1: ab + abababa\P\P +Partial match: abababa + +/(..)\1{2,}/i + ab\P +Partial match: ab + aBa\P +Partial match: aBa + aBAb\P +Partial match: aBAb + AbaBA\P +Partial match: AbaBA + abABAb\P + 0: abABAb + 1: ab + aBAbaB\P\P +Partial match: aBAbaB + abABabA\P + 0: abABab + 1: ab + abaBABa\P\P +Partial match: abaBABa + +/(..)\1{2,}?x/i + ab\P +Partial match: ab + abA\P +Partial match: abA + aBAb\P +Partial match: aBAb + abaBA\P +Partial match: abaBA + abAbaB\P +Partial match: abAbaB + abaBabA\P +Partial match: abaBabA + abAbABaBx\P + 0: abAbABaBx + 1: ab + +/^(..)\1/ + aba\P +Partial match: aba + +/^(..)\1{2,3}x/ + aba\P +Partial match: aba + ababa\P +Partial match: ababa + ababa\P\P +Partial match: ababa + abababx + 0: abababx + 1: ab + ababababx + 0: ababababx + 1: ab + +/^(..)\1{2,3}?x/ + aba\P +Partial match: aba + ababa\P +Partial match: ababa + ababa\P\P +Partial match: ababa + abababx + 0: abababx + 1: ab + ababababx + 0: ababababx + 1: ab + +/^(..)(\1{2,3})ab/ + abababab + 0: abababab + 1: ab + 2: abab + +/^\R/ + \r\P + 0: \x0d + \r\P\P +Partial match: \x0d + +/^\R{2,3}x/ + \r\P +Partial match: \x0d + \r\P\P +Partial match: \x0d + \r\r\P +Partial match: \x0d\x0d + \r\r\P\P +Partial match: \x0d\x0d + \r\r\r\P +Partial match: \x0d\x0d\x0d + \r\r\r\P\P +Partial match: \x0d\x0d\x0d + \r\rx + 0: \x0d\x0dx + \r\r\rx + 0: \x0d\x0d\x0dx + +/^\R{2,3}?x/ + \r\P +Partial match: \x0d + \r\P\P +Partial match: \x0d + \r\r\P +Partial match: \x0d\x0d + \r\r\P\P +Partial match: \x0d\x0d + \r\r\r\P +Partial match: \x0d\x0d\x0d + \r\r\r\P\P +Partial match: \x0d\x0d\x0d + \r\rx + 0: \x0d\x0dx + \r\r\rx + 0: \x0d\x0d\x0dx + +/^\R?x/ + \r\P +Partial match: \x0d + \r\P\P +Partial match: \x0d + x + 0: x + \rx + 0: \x0dx + +/^\R+x/ + \r\P +Partial match: \x0d + \r\P\P +Partial match: \x0d + \r\n\P +Partial match: \x0d\x0a + \r\n\P\P +Partial match: \x0d\x0a + \rx + 0: \x0dx + +/^a$/<CRLF> + a\r\P +Partial match: a\x0d + a\r\P\P +Partial match: a\x0d + +/^a$/m<CRLF> + a\r\P +Partial match: a\x0d + a\r\P\P +Partial match: a\x0d + +/^(a$|a\r)/<CRLF> + a\r\P + 0: a\x0d + 1: a\x0d + a\r\P\P +Partial match: a\x0d + +/^(a$|a\r)/m<CRLF> + a\r\P + 0: a\x0d + 1: a\x0d + a\r\P\P +Partial match: a\x0d + +/./<CRLF> + \r\P + 0: \x0d + \r\P\P +Partial match: \x0d + +/.{2,3}/<CRLF> + \r\P +Partial match: \x0d + \r\P\P +Partial match: \x0d + \r\r\P + 0: \x0d\x0d + \r\r\P\P +Partial match: \x0d\x0d + \r\r\r\P + 0: \x0d\x0d\x0d + \r\r\r\P\P +Partial match: \x0d\x0d\x0d + +/.{2,3}?/<CRLF> + \r\P +Partial match: \x0d + \r\P\P +Partial match: \x0d + \r\r\P + 0: \x0d\x0d + \r\r\P\P +Partial match: \x0d\x0d + \r\r\r\P + 0: \x0d\x0d + \r\r\r\P\P + 0: \x0d\x0d + +"AB(C(D))(E(F))?(?(?=\2)(?=\4))" + ABCDGHI\O03 +Matched, but too many substrings + 0: ABCD + +/-- These are all run as real matches in test 1; here we are just checking the +settings of the anchored and startline bits. --/ + +/(?>.*?a)(?<=ba)/I +Capturing subpattern count = 0 +Max lookbehind = 2 +No options +No first char +Need char = 'a' + +/(?:.*?a)(?<=ba)/I +Capturing subpattern count = 0 +Max lookbehind = 2 +No options +First char at start or follows newline +Need char = 'a' + +/.*?a(*PRUNE)b/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'b' + +/.*?a(*PRUNE)b/sI +Capturing subpattern count = 0 +Options: dotall +No first char +Need char = 'b' + +/^a(*PRUNE)b/sI +Capturing subpattern count = 0 +Options: anchored dotall +No first char +No need char + +/.*?a(*SKIP)b/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'b' + +/(?>.*?a)b/sI +Capturing subpattern count = 0 +Options: dotall +No first char +Need char = 'b' + +/(?>.*?a)b/I +Capturing subpattern count = 0 +No options +No first char +Need char = 'b' + +/(?>^a)b/sI +Capturing subpattern count = 0 +Options: anchored dotall +No first char +No need char + +/(?>.*?)(?<=(abcd)|(wxyz))/I +Capturing subpattern count = 2 +Max lookbehind = 4 +May match empty string +No options +No first char +No need char + +/(?>.*)(?<=(abcd)|(wxyz))/I +Capturing subpattern count = 2 +Max lookbehind = 4 +May match empty string +No options +No first char +No need char + +"(?>.*)foo"I +Capturing subpattern count = 0 +No options +No first char +Need char = 'o' + +"(?>.*?)foo"I +Capturing subpattern count = 0 +No options +No first char +Need char = 'o' + +/(?>^abc)/mI +Capturing subpattern count = 0 +Options: multiline +First char at start or follows newline +Need char = 'c' + +/(?>.*abc)/mI +Capturing subpattern count = 0 +Options: multiline +No first char +Need char = 'c' + +/(?:.*abc)/mI +Capturing subpattern count = 0 +Options: multiline +First char at start or follows newline +Need char = 'c' + +/-- Check PCRE_STUDY_EXTRA_NEEDED --/ + +/.?/S-I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char +Study returned NULL + +/.?/S!I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char +Subject length lower bound = -1 +No starting char list + +/(?:(a)+(?C1)bb|aa(?C2)b)/ + aab\C+ +Callout 1: last capture = 1 + 0: <unset> + 1: a +--->aab + ^ ^ b +Callout 1: last capture = 1 + 0: <unset> + 1: a +--->aab + ^^ b +Callout 2: last capture = -1 + 0: <unset> +--->aab + ^ ^ b + 0: aab + +/(?:(a)++(?C1)bb|aa(?C2)b)/ + aab\C+ +Callout 1: last capture = 1 + 0: <unset> + 1: a +--->aab + ^ ^ b +Callout 2: last capture = -1 + 0: <unset> +--->aab + ^ ^ b + 0: aab + +/(?:(?>(a))(?C1)bb|aa(?C2)b)/ + aab\C+ +Callout 1: last capture = 1 + 0: <unset> + 1: a +--->aab + ^^ b +Callout 2: last capture = -1 + 0: <unset> +--->aab + ^ ^ b + 0: aab + +/(?:(?1)(?C1)x|ab(?C2))((a)){0}/ + aab\C+ +Callout 1: last capture = -1 + 0: <unset> +--->aab + ^^ x +Callout 1: last capture = -1 + 0: <unset> +--->aab + ^^ x +Callout 2: last capture = -1 + 0: <unset> +--->aab + ^ ^ ) + 0: ab + +/(?1)(?C1)((a)(?C2)){0}/ + aab\C+ +Callout 2: last capture = 2 + 0: <unset> + 1: <unset> + 2: a +--->aab + ^^ ) +Callout 1: last capture = -1 + 0: <unset> +--->aab + ^^ ((a)(?C2)){0} + 0: a + +/(?:(a)+(?C1)bb|aa(?C2)b)++/ + aab\C+ +Callout 1: last capture = 1 + 0: <unset> + 1: a +--->aab + ^ ^ b +Callout 1: last capture = 1 + 0: <unset> + 1: a +--->aab + ^^ b +Callout 2: last capture = -1 + 0: <unset> +--->aab + ^ ^ b + 0: aab + aab\C+\O2 +Callout 1: last capture = 1 + 0: <unset> +--->aab + ^ ^ b +Callout 1: last capture = 1 + 0: <unset> +--->aab + ^^ b +Callout 2: last capture = -1 + 0: <unset> +--->aab + ^ ^ b + 0: aab + +/(ab)x|ab/ + ab\O3 + 0: ab + ab\O2 + 0: ab + +/(ab)/ + ab\O3 +Matched, but too many substrings + 0: ab + ab\O2 +Matched, but too many substrings + 0: ab + +/(?<=123)(*MARK:xx)abc/K + xxxx123a\P\P +Partial match at offset 7, mark=xx: 123a + xxxx123a\P +Partial match at offset 7, mark=xx: 123a + +/123\Kabc/ + xxxx123a\P\P +Partial match: 123a + xxxx123a\P +Partial match: 123a + +/^(?(?=a)aa|bb)/C + bb +--->bb + +0 ^ ^ + +1 ^ (?(?=a)aa|bb) + +3 ^ (?=a) + +6 ^ a ++11 ^ b ++12 ^^ b ++13 ^ ^ ) ++14 ^ ^ + 0: bb + +/(?C1)^(?C2)(?(?C99)(?=(?C3)a(?C4))(?C5)a(?C6)a(?C7)|(?C8)b(?C9)b(?C10))(?C11)/ + bb +--->bb + 1 ^ ^ + 2 ^ (?(?C99)(?=(?C3)a(?C4))(?C5)a(?C6)a(?C7)|(?C8)b(?C9)b(?C10)) + 99 ^ (?=(?C3)a(?C4)) + 3 ^ a + 8 ^ b + 9 ^^ b + 10 ^ ^ ) + 11 ^ ^ + 0: bb + +/-- Perl seems to have a bug with this one --/ + +/aaaaa(*COMMIT)(*PRUNE)b|a+c/ + aaaaaac + 0: aaaac + +/-- Here are some that Perl treats differently because of the way it handles +backtracking verbs. --/ + + /(?!a(*COMMIT)b)ac|ad/ + ac + 0: ac + ad + 0: ad + +/^(?!a(*THEN)b|ac)../ + ac +No match + ad + 0: ad + +/^(?=a(*THEN)b|ac)/ + ac + 0: + +/\A.*?(?:a|b(*THEN)c)/ + ba + 0: ba + +/\A.*?(?:a|b(*THEN)c)++/ + ba + 0: ba + +/\A.*?(?:a|b(*THEN)c|d)/ + ba + 0: ba + +/(?:(a(*MARK:X)a+(*SKIP:X)b)){0}(?:(?1)|aac)/ + aac + 0: aac + +/\A.*?(a|b(*THEN)c)/ + ba + 0: ba + 1: a + +/^(A(*THEN)B|A(*THEN)D)/ + AD + 0: AD + 1: AD + +/(?!b(*THEN)a)bn|bnn/ + bnn + 0: bn + +/(?(?=b(*SKIP)a)bn|bnn)/ + bnn +No match + +/(?=b(*THEN)a|)bn|bnn/ + bnn + 0: bn + +/-------------------------/ + +/(*LIMIT_MATCH=12bc)abc/ +Failed: (*VERB) not recognized or malformed at offset 7 + +/(*LIMIT_MATCH=4294967290)abc/ +Failed: (*VERB) not recognized or malformed at offset 7 + +/(*LIMIT_RECURSION=4294967280)abc/I +Capturing subpattern count = 0 +Recursion limit = 4294967280 +No options +First char = 'a' +Need char = 'c' + +/(a+)*zz/ + aaaaaaaaaaaaaz +No match + aaaaaaaaaaaaaz\q3000 +Error -8 (match limit exceeded) + +/(a+)*zz/S- + aaaaaaaaaaaaaz\Q10 +Error -21 (recursion limit exceeded) + +/(*LIMIT_MATCH=3000)(a+)*zz/I +Capturing subpattern count = 1 +Match limit = 3000 +No options +No first char +Need char = 'z' + aaaaaaaaaaaaaz +Error -8 (match limit exceeded) + aaaaaaaaaaaaaz\q60000 +Error -8 (match limit exceeded) + +/(*LIMIT_MATCH=60000)(*LIMIT_MATCH=3000)(a+)*zz/I +Capturing subpattern count = 1 +Match limit = 3000 +No options +No first char +Need char = 'z' + aaaaaaaaaaaaaz +Error -8 (match limit exceeded) + +/(*LIMIT_MATCH=60000)(a+)*zz/I +Capturing subpattern count = 1 +Match limit = 60000 +No options +No first char +Need char = 'z' + aaaaaaaaaaaaaz +No match + aaaaaaaaaaaaaz\q3000 +Error -8 (match limit exceeded) + +/(*LIMIT_RECURSION=10)(a+)*zz/IS- +Capturing subpattern count = 1 +Recursion limit = 10 +No options +No first char +Need char = 'z' +Subject length lower bound = 2 +Starting chars: a z + aaaaaaaaaaaaaz +Error -21 (recursion limit exceeded) + aaaaaaaaaaaaaz\Q1000 +Error -21 (recursion limit exceeded) + +/(*LIMIT_RECURSION=10)(*LIMIT_RECURSION=1000)(a+)*zz/IS- +Capturing subpattern count = 1 +Recursion limit = 10 +No options +No first char +Need char = 'z' +Subject length lower bound = 2 +Starting chars: a z + aaaaaaaaaaaaaz +Error -21 (recursion limit exceeded) + +/(*LIMIT_RECURSION=1000)(a+)*zz/IS- +Capturing subpattern count = 1 +Recursion limit = 1000 +No options +No first char +Need char = 'z' +Subject length lower bound = 2 +Starting chars: a z + aaaaaaaaaaaaaz +No match + aaaaaaaaaaaaaz\Q10 +Error -21 (recursion limit exceeded) + +/-- This test causes a segfault with Perl 5.18.0 --/ + +/^(?=(a)){0}b(?1)/ + backgammon + 0: ba + +/(?|(?<n>f)|(?<n>b))/JI +Capturing subpattern count = 1 +Named capturing subpatterns: + n 1 +Options: dupnames +No first char +No need char + +/(?<a>abc)(?<a>z)\k<a>()/JDZS +------------------------------------------------------------------ + Bra + CBra 1 + abc + Ket + CBra 2 + z + Ket + \k<a>2 + CBra 3 + Ket + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 3 +Max back reference = 2 +Named capturing subpatterns: + a 1 + a 2 +Options: dupnames +First char = 'a' +Need char = 'z' +Subject length lower bound = 5 +No starting char list + +/a*[bcd]/BZ +------------------------------------------------------------------ + Bra + a*+ + [b-d] + Ket + End +------------------------------------------------------------------ + +/[bcd]*a/BZ +------------------------------------------------------------------ + Bra + [b-d]*+ + a + Ket + End +------------------------------------------------------------------ + +/-- A complete set of tests for auto-possessification of character types --/ + +/\D+\D \D+\d \D+\S \D+\s \D+\W \D+\w \D+. \D+\C \D+\R \D+\H \D+\h \D+\V \D+\v \D+\Z \D+\z \D+$/BZx +------------------------------------------------------------------ + Bra + \D+ + \D + \D++ + \d + \D+ + \S + \D+ + \s + \D+ + \W + \D+ + \w + \D+ + Any + \D+ + AllAny + \D+ + \R + \D+ + \H + \D+ + \h + \D+ + \V + \D+ + \v + \D+ + \Z + \D++ + \z + \D+ + $ + Ket + End +------------------------------------------------------------------ + +/\d+\D \d+\d \d+\S \d+\s \d+\W \d+\w \d+. \d+\C \d+\R \d+\H \d+\h \d+\V \d+\v \d+\Z \d+\z \d+$/BZx +------------------------------------------------------------------ + Bra + \d++ + \D + \d+ + \d + \d+ + \S + \d++ + \s + \d++ + \W + \d+ + \w + \d+ + Any + \d+ + AllAny + \d++ + \R + \d+ + \H + \d++ + \h + \d+ + \V + \d++ + \v + \d++ + \Z + \d++ + \z + \d++ + $ + Ket + End +------------------------------------------------------------------ + +/\S+\D \S+\d \S+\S \S+\s \S+\W \S+\w \S+. \S+\C \S+\R \S+\H \S+\h \S+\V \S+\v \S+\Z \S+\z \S+$/BZx +------------------------------------------------------------------ + Bra + \S+ + \D + \S+ + \d + \S+ + \S + \S++ + \s + \S+ + \W + \S+ + \w + \S+ + Any + \S+ + AllAny + \S++ + \R + \S+ + \H + \S++ + \h + \S+ + \V + \S++ + \v + \S++ + \Z + \S++ + \z + \S++ + $ + Ket + End +------------------------------------------------------------------ + +/\s+\D \s+\d \s+\S \s+\s \s+\W \s+\w \s+. \s+\C \s+\R \s+\H \s+\h \s+\V \s+\v \s+\Z \s+\z \s+$/BZx +------------------------------------------------------------------ + Bra + \s+ + \D + \s++ + \d + \s++ + \S + \s+ + \s + \s+ + \W + \s++ + \w + \s+ + Any + \s+ + AllAny + \s+ + \R + \s+ + \H + \s+ + \h + \s+ + \V + \s+ + \v + \s+ + \Z + \s++ + \z + \s+ + $ + Ket + End +------------------------------------------------------------------ + +/\W+\D \W+\d \W+\S \W+\s \W+\W \W+\w \W+. \W+\C \W+\R \W+\H \W+\h \W+\V \W+\v \W+\Z \W+\z \W+$/BZx +------------------------------------------------------------------ + Bra + \W+ + \D + \W++ + \d + \W+ + \S + \W+ + \s + \W+ + \W + \W++ + \w + \W+ + Any + \W+ + AllAny + \W+ + \R + \W+ + \H + \W+ + \h + \W+ + \V + \W+ + \v + \W+ + \Z + \W++ + \z + \W+ + $ + Ket + End +------------------------------------------------------------------ + +/\w+\D \w+\d \w+\S \w+\s \w+\W \w+\w \w+. \w+\C \w+\R \w+\H \w+\h \w+\V \w+\v \w+\Z \w+\z \w+$/BZx +------------------------------------------------------------------ + Bra + \w+ + \D + \w+ + \d + \w+ + \S + \w++ + \s + \w++ + \W + \w+ + \w + \w+ + Any + \w+ + AllAny + \w++ + \R + \w+ + \H + \w++ + \h + \w+ + \V + \w++ + \v + \w++ + \Z + \w++ + \z + \w++ + $ + Ket + End +------------------------------------------------------------------ + +/\C+\D \C+\d \C+\S \C+\s \C+\W \C+\w \C+. \C+\C \C+\R \C+\H \C+\h \C+\V \C+\v \C+\Z \C+\z \C+$/BZx +------------------------------------------------------------------ + Bra + AllAny+ + \D + AllAny+ + \d + AllAny+ + \S + AllAny+ + \s + AllAny+ + \W + AllAny+ + \w + AllAny+ + Any + AllAny+ + AllAny + AllAny+ + \R + AllAny+ + \H + AllAny+ + \h + AllAny+ + \V + AllAny+ + \v + AllAny+ + \Z + AllAny++ + \z + AllAny+ + $ + Ket + End +------------------------------------------------------------------ + +/\R+\D \R+\d \R+\S \R+\s \R+\W \R+\w \R+. \R+\C \R+\R \R+\H \R+\h \R+\V \R+\v \R+\Z \R+\z \R+$/BZx +------------------------------------------------------------------ + Bra + \R+ + \D + \R++ + \d + \R+ + \S + \R++ + \s + \R+ + \W + \R++ + \w + \R++ + Any + \R+ + AllAny + \R+ + \R + \R+ + \H + \R++ + \h + \R+ + \V + \R+ + \v + \R+ + \Z + \R++ + \z + \R+ + $ + Ket + End +------------------------------------------------------------------ + +/\H+\D \H+\d \H+\S \H+\s \H+\W \H+\w \H+. \H+\C \H+\R \H+\H \H+\h \H+\V \H+\v \H+\Z \H+\z \H+$/BZx +------------------------------------------------------------------ + Bra + \H+ + \D + \H+ + \d + \H+ + \S + \H+ + \s + \H+ + \W + \H+ + \w + \H+ + Any + \H+ + AllAny + \H+ + \R + \H+ + \H + \H++ + \h + \H+ + \V + \H+ + \v + \H+ + \Z + \H++ + \z + \H+ + $ + Ket + End +------------------------------------------------------------------ + +/\h+\D \h+\d \h+\S \h+\s \h+\W \h+\w \h+. \h+\C \h+\R \h+\H \h+\h \h+\V \h+\v \h+\Z \h+\z \h+$/BZx +------------------------------------------------------------------ + Bra + \h+ + \D + \h++ + \d + \h++ + \S + \h+ + \s + \h+ + \W + \h++ + \w + \h+ + Any + \h+ + AllAny + \h++ + \R + \h++ + \H + \h+ + \h + \h+ + \V + \h++ + \v + \h+ + \Z + \h++ + \z + \h+ + $ + Ket + End +------------------------------------------------------------------ + +/\V+\D \V+\d \V+\S \V+\s \V+\W \V+\w \V+. \V+\C \V+\R \V+\H \V+\h \V+\V \V+\v \V+\Z \V+\z \V+$/BZx +------------------------------------------------------------------ + Bra + \V+ + \D + \V+ + \d + \V+ + \S + \V+ + \s + \V+ + \W + \V+ + \w + \V+ + Any + \V+ + AllAny + \V++ + \R + \V+ + \H + \V+ + \h + \V+ + \V + \V++ + \v + \V+ + \Z + \V++ + \z + \V+ + $ + Ket + End +------------------------------------------------------------------ + +/\v+\D \v+\d \v+\S \v+\s \v+\W \v+\w \v+. \v+\C \v+\R \v+\H \v+\h \v+\V \v+\v \v+\Z \v+\z \v+$/BZx +------------------------------------------------------------------ + Bra + \v+ + \D + \v++ + \d + \v++ + \S + \v+ + \s + \v+ + \W + \v++ + \w + \v+ + Any + \v+ + AllAny + \v+ + \R + \v+ + \H + \v++ + \h + \v++ + \V + \v+ + \v + \v+ + \Z + \v++ + \z + \v+ + $ + Ket + End +------------------------------------------------------------------ + +/ a+\D a+\d a+\S a+\s a+\W a+\w a+. a+\C a+\R a+\H a+\h a+\V a+\v a+\Z a+\z a+$/BZx +------------------------------------------------------------------ + Bra + a+ + \D + a++ + \d + a+ + \S + a++ + \s + a++ + \W + a+ + \w + a+ + Any + a+ + AllAny + a++ + \R + a+ + \H + a++ + \h + a+ + \V + a++ + \v + a++ + \Z + a++ + \z + a++ + $ + Ket + End +------------------------------------------------------------------ + +/\n+\D \n+\d \n+\S \n+\s \n+\W \n+\w \n+. \n+\C \n+\R \n+\H \n+\h \n+\V \n+\v \n+\Z \n+\z \n+$/BZx +------------------------------------------------------------------ + Bra + \x0a+ + \D + \x0a++ + \d + \x0a++ + \S + \x0a+ + \s + \x0a+ + \W + \x0a++ + \w + \x0a+ + Any + \x0a+ + AllAny + \x0a+ + \R + \x0a+ + \H + \x0a++ + \h + \x0a++ + \V + \x0a+ + \v + \x0a+ + \Z + \x0a++ + \z + \x0a+ + $ + Ket + End +------------------------------------------------------------------ + +/ .+\D .+\d .+\S .+\s .+\W .+\w .+. .+\C .+\R .+\H .+\h .+\V .+\v .+\Z .+\z .+$/BZx +------------------------------------------------------------------ + Bra + Any+ + \D + Any+ + \d + Any+ + \S + Any+ + \s + Any+ + \W + Any+ + \w + Any+ + Any + Any+ + AllAny + Any++ + \R + Any+ + \H + Any+ + \h + Any+ + \V + Any+ + \v + Any+ + \Z + Any++ + \z + Any+ + $ + Ket + End +------------------------------------------------------------------ + +/ .+\D .+\d .+\S .+\s .+\W .+\w .+. .+\C .+\R .+\H .+\h .+\V .+\v .+\Z .+\z .+$/BZxs +------------------------------------------------------------------ + Bra + AllAny+ + \D + AllAny+ + \d + AllAny+ + \S + AllAny+ + \s + AllAny+ + \W + AllAny+ + \w + AllAny+ + AllAny + AllAny+ + AllAny + AllAny+ + \R + AllAny+ + \H + AllAny+ + \h + AllAny+ + \V + AllAny+ + \v + AllAny+ + \Z + AllAny++ + \z + AllAny+ + $ + Ket + End +------------------------------------------------------------------ + +/\D+$ \d+$ \S+$ \s+$ \W+$ \w+$ \C+$ \R+$ \H+$ \h+$ \V+$ \v+$ a+$ \n+$ .+$ .+$/BZxm +------------------------------------------------------------------ + Bra + \D+ + /m $ + \d++ + /m $ + \S++ + /m $ + \s+ + /m $ + \W+ + /m $ + \w++ + /m $ + AllAny+ + /m $ + \R+ + /m $ + \H+ + /m $ + \h+ + /m $ + \V+ + /m $ + \v+ + /m $ + a+ + /m $ + \x0a+ + /m $ + Any+ + /m $ + Any+ + /m $ + Ket + End +------------------------------------------------------------------ + +/(?=a+)a(a+)++a/BZ +------------------------------------------------------------------ + Bra + Assert + a++ + Ket + a + CBraPos 1 + a++ + KetRpos + a + Ket + End +------------------------------------------------------------------ + +/a+(bb|cc)a+(?:bb|cc)a+(?>bb|cc)a+(?:bb|cc)+a+(aa)a+(?:bb|aa)/BZ +------------------------------------------------------------------ + Bra + a++ + CBra 1 + bb + Alt + cc + Ket + a++ + Bra + bb + Alt + cc + Ket + a++ + Once_NC + bb + Alt + cc + Ket + a++ + Bra + bb + Alt + cc + KetRmax + a+ + CBra 2 + aa + Ket + a+ + Bra + bb + Alt + aa + Ket + Ket + End +------------------------------------------------------------------ + +/a+(bb|cc)?#a+(?:bb|cc)??#a+(?:bb|cc)?+#a+(?:bb|cc)*#a+(bb|cc)?a#a+(?:aa)?/BZ +------------------------------------------------------------------ + Bra + a++ + Brazero + CBra 1 + bb + Alt + cc + Ket + # + a++ + Braminzero + Bra + bb + Alt + cc + Ket + # + a++ + Once + Brazero + Bra + bb + Alt + cc + Ket + Ket + # + a++ + Brazero + Bra + bb + Alt + cc + KetRmax + # + a+ + Brazero + CBra 2 + bb + Alt + cc + Ket + a# + a+ + Brazero + Bra + aa + Ket + Ket + End +------------------------------------------------------------------ + +/a+(?:bb)?a#a+(?:|||)#a+(?:|b)a#a+(?:|||)?a/BZ +------------------------------------------------------------------ + Bra + a+ + Brazero + Bra + bb + Ket + a# + a++ + Bra + Alt + Alt + Alt + Ket + # + a+ + Bra + Alt + b + Ket + a# + a+ + Brazero + Bra + Alt + Alt + Alt + Ket + a + Ket + End +------------------------------------------------------------------ + +/[ab]*/BZ +------------------------------------------------------------------ + Bra + [ab]*+ + Ket + End +------------------------------------------------------------------ + aaaa + 0: aaaa + +/[ab]*?/BZ +------------------------------------------------------------------ + Bra + [ab]*? + Ket + End +------------------------------------------------------------------ + aaaa + 0: + +/[ab]?/BZ +------------------------------------------------------------------ + Bra + [ab]?+ + Ket + End +------------------------------------------------------------------ + aaaa + 0: a + +/[ab]??/BZ +------------------------------------------------------------------ + Bra + [ab]?? + Ket + End +------------------------------------------------------------------ + aaaa + 0: + +/[ab]+/BZ +------------------------------------------------------------------ + Bra + [ab]++ + Ket + End +------------------------------------------------------------------ + aaaa + 0: aaaa + +/[ab]+?/BZ +------------------------------------------------------------------ + Bra + [ab]+? + Ket + End +------------------------------------------------------------------ + aaaa + 0: a + +/[ab]{2,3}/BZ +------------------------------------------------------------------ + Bra + [ab]{2,3}+ + Ket + End +------------------------------------------------------------------ + aaaa + 0: aaa + +/[ab]{2,3}?/BZ +------------------------------------------------------------------ + Bra + [ab]{2,3}? + Ket + End +------------------------------------------------------------------ + aaaa + 0: aa + +/[ab]{2,}/BZ +------------------------------------------------------------------ + Bra + [ab]{2,}+ + Ket + End +------------------------------------------------------------------ + aaaa + 0: aaaa + +/[ab]{2,}?/BZ +------------------------------------------------------------------ + Bra + [ab]{2,}? + Ket + End +------------------------------------------------------------------ + aaaa + 0: aa + +/\d+\s{0,5}=\s*\S?=\w{0,4}\W*/BZ +------------------------------------------------------------------ + Bra + \d++ + \s{0,5}+ + = + \s*+ + \S? + = + \w{0,4}+ + \W*+ + Ket + End +------------------------------------------------------------------ + +/[a-d]{5,12}[e-z0-9]*#[^a-z]+[b-y]*a[2-7]?[^0-9a-z]+/BZ +------------------------------------------------------------------ + Bra + [a-d]{5,12}+ + [0-9e-z]*+ + # + [\x00-`{-\xff] (neg)++ + [b-y]*+ + a + [2-7]?+ + [\x00-/:-`{-\xff] (neg)++ + Ket + End +------------------------------------------------------------------ + +/[a-z]*\s#[ \t]?\S#[a-c]*\S#[C-G]+?\d#[4-8]*\D#[4-9,]*\D#[!$]{0,5}\w#[M-Xf-l]+\W#[a-c,]?\W/BZ +------------------------------------------------------------------ + Bra + [a-z]*+ + \s + # + [\x09 ]?+ + \S + # + [a-c]* + \S + # + [C-G]++ + \d + # + [4-8]*+ + \D + # + [,4-9]* + \D + # + [!$]{0,5}+ + \w + # + [M-Xf-l]++ + \W + # + [,a-c]? + \W + Ket + End +------------------------------------------------------------------ + +/a+(aa|bb)*c#a*(bb|cc)*a#a?(bb|cc)*d#[a-f]*(g|hh)*f/BZ +------------------------------------------------------------------ + Bra + a+ + Brazero + CBra 1 + aa + Alt + bb + KetRmax + c# + a* + Brazero + CBra 2 + bb + Alt + cc + KetRmax + a# + a?+ + Brazero + CBra 3 + bb + Alt + cc + KetRmax + d# + [a-f]* + Brazero + CBra 4 + g + Alt + hh + KetRmax + f + Ket + End +------------------------------------------------------------------ + +/[a-f]*(g|hh|i)*i#[a-x]{4,}(y{0,6})*y#[a-k]+(ll|mm)+n/BZ +------------------------------------------------------------------ + Bra + [a-f]*+ + Brazero + CBra 1 + g + Alt + hh + Alt + i + KetRmax + i# + [a-x]{4,} + Brazero + SCBra 2 + y{0,6} + KetRmax + y# + [a-k]++ + CBra 3 + ll + Alt + mm + KetRmax + n + Ket + End +------------------------------------------------------------------ + +/[a-f]*(?>gg|hh)+#[a-f]*(?>gg|hh)?#[a-f]*(?>gg|hh)*a#[a-f]*(?>gg|hh)*h/BZ +------------------------------------------------------------------ + Bra + [a-f]*+ + Once_NC + gg + Alt + hh + KetRmax + # + [a-f]*+ + Brazero + Once_NC + gg + Alt + hh + Ket + # + [a-f]* + Brazero + Once_NC + gg + Alt + hh + KetRmax + a# + [a-f]*+ + Brazero + Once_NC + gg + Alt + hh + KetRmax + h + Ket + End +------------------------------------------------------------------ + +/[a-c]*d/DZS +------------------------------------------------------------------ + Bra + [a-c]*+ + d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +Need char = 'd' +Subject length lower bound = 1 +Starting chars: a b c d + +/[a-c]+d/DZS +------------------------------------------------------------------ + Bra + [a-c]++ + d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +Need char = 'd' +Subject length lower bound = 2 +Starting chars: a b c + +/[a-c]?d/DZS +------------------------------------------------------------------ + Bra + [a-c]?+ + d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +Need char = 'd' +Subject length lower bound = 1 +Starting chars: a b c d + +/[a-c]{4,6}d/DZS +------------------------------------------------------------------ + Bra + [a-c]{4,6}+ + d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +Need char = 'd' +Subject length lower bound = 5 +Starting chars: a b c + +/[a-c]{0,6}d/DZS +------------------------------------------------------------------ + Bra + [a-c]{0,6}+ + d + Ket + End +------------------------------------------------------------------ +Capturing subpattern count = 0 +No options +No first char +Need char = 'd' +Subject length lower bound = 1 +Starting chars: a b c d + +/-- End of special auto-possessive tests --/ + +/^A\o{1239}B/ +Failed: non-octal character in \o{} (closing brace missing?) at offset 8 + +/^A\oB/ +Failed: missing opening brace after \o at offset 3 + +/^A\x{zz}B/ +Failed: non-hex character in \x{} (closing brace missing?) at offset 5 + +/^A\x{12Z/ +Failed: non-hex character in \x{} (closing brace missing?) at offset 7 + +/^A\x{/ +Failed: non-hex character in \x{} (closing brace missing?) at offset 5 + +/[ab]++/BZO +------------------------------------------------------------------ + Bra + [ab]++ + Ket + End +------------------------------------------------------------------ + +/[^ab]*+/BZO +------------------------------------------------------------------ + Bra + [\x00-`c-\xff] (neg)*+ + Ket + End +------------------------------------------------------------------ + +/a{4}+/BZO +------------------------------------------------------------------ + Bra + a{4} + Ket + End +------------------------------------------------------------------ + +/a{4}+/BZOi +------------------------------------------------------------------ + Bra + /i a{4} + Ket + End +------------------------------------------------------------------ + +/[a-[:digit:]]+/ +Failed: invalid range in character class at offset 3 + +/[A-[:digit:]]+/ +Failed: invalid range in character class at offset 3 + +/[a-[.xxx.]]+/ +Failed: invalid range in character class at offset 3 + +/[a-[=xxx=]]+/ +Failed: invalid range in character class at offset 3 + +/[a-[!xxx!]]+/ +Failed: range out of order in character class at offset 3 + +/[A-[!xxx!]]+/ + A]]] + 0: A]]] + +/[a-\d]+/ +Failed: invalid range in character class at offset 4 + +/(?<0abc>xx)/ +Failed: group name must start with a non-digit at offset 3 + +/(?&1abc)xx(?<1abc>y)/ +Failed: group name must start with a non-digit at offset 3 + +/(?<ab-cd>xx)/ +Failed: syntax error in subpattern name (missing terminator) at offset 5 + +/(?'0abc'xx)/ +Failed: group name must start with a non-digit at offset 3 + +/(?P<0abc>xx)/ +Failed: group name must start with a non-digit at offset 4 + +/\k<5ghj>/ +Failed: group name must start with a non-digit at offset 3 + +/\k'5ghj'/ +Failed: group name must start with a non-digit at offset 3 + +/\k{2fgh}/ +Failed: group name must start with a non-digit at offset 3 + +/(?P=8yuki)/ +Failed: group name must start with a non-digit at offset 4 + +/\g{4df}/ +Failed: group name must start with a non-digit at offset 3 + +/(?&1abc)xx(?<1abc>y)/ +Failed: group name must start with a non-digit at offset 3 + +/(?P>1abc)xx(?<1abc>y)/ +Failed: group name must start with a non-digit at offset 4 + +/\g'3gh'/ +Failed: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number at offset 2 + +/\g<5fg>/ +Failed: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number at offset 2 + +/(?(<4gh>)abc)/ +Failed: group name must start with a non-digit at offset 4 + +/(?('4gh')abc)/ +Failed: group name must start with a non-digit at offset 4 + +/(?(4gh)abc)/ +Failed: malformed number or name after (?( at offset 4 + +/(?(R&6yh)abc)/ +Failed: group name must start with a non-digit at offset 5 + +/(((a\2)|(a*)\g<-1>))*a?/BZ +------------------------------------------------------------------ + Bra + Brazero + SCBra 1 + Once + CBra 2 + CBra 3 + a + \2 + Ket + Alt + CBra 4 + a* + Ket + Recurse + Ket + Ket + KetRmax + a?+ + Ket + End +------------------------------------------------------------------ + +/-- Test the ugly "start or end of word" compatibility syntax --/ + +/[[:<:]]red[[:>:]]/BZ +------------------------------------------------------------------ + Bra + \b + Assert + \w + Ket + red + \b + AssertB + Reverse + \w + Ket + Ket + End +------------------------------------------------------------------ + little red riding hood + 0: red + a /red/ thing + 0: red + red is a colour + 0: red + put it all on red + 0: red + ** Failers +No match + no reduction +No match + Alfred Winifred +No match + +/[a[:<:]] should give error/ +Failed: unknown POSIX class name at offset 4 + +/(?=ab\K)/+ + abcd +Start of matched string is beyond its end - displaying from end to start. + 0: ab + 0+ abcd + +/abcd/f<lf> + xx\nxabcd +No match + +/ -- Test stack check external calls --/ + +/(((((a)))))/Q0 + +/(((((a)))))/Q1 +Failed: parentheses are too deeply nested (stack check) at offset 0 + +/(((((a)))))/Q +** Missing 0 or 1 after /Q + +/^\w+(?>\s*)(?<=\w)/BZ +------------------------------------------------------------------ + Bra + ^ + \w+ + Once_NC + \s*+ + Ket + AssertB + Reverse + \w + Ket + Ket + End +------------------------------------------------------------------ + +/\othing/ +Failed: missing opening brace after \o at offset 1 + +/\o{}/ +Failed: digits missing in \x{} or \o{} at offset 1 + +/\o{whatever}/ +Failed: non-octal character in \o{} (closing brace missing?) at offset 3 + +/\xthing/ + +/\x{}/ +Failed: digits missing in \x{} or \o{} at offset 3 + +/\x{whatever}/ +Failed: non-hex character in \x{} (closing brace missing?) at offset 3 + +"((?=(?(?=(?(?=(?(?=()))))))))" + a + 0: + 1: + 2: + +"(?(?=)==)(((((((((?=)))))))))" + a +No match + +/^(?:(a)|b)(?(1)A|B)/I +Capturing subpattern count = 1 +Max back reference = 1 +Options: anchored +No first char +No need char + aA123\O3 +Matched, but too many substrings + 0: aA + aA123\O6 + 0: aA + 1: a + +'^(?:(?<AA>a)|b)(?(<AA>)A|B)' + aA123\O3 +Matched, but too many substrings + 0: aA + aA123\O6 + 0: aA + 1: a + +'^(?<AA>)(?:(?<AA>a)|b)(?(<AA>)A|B)'J + aA123\O3 +Matched, but too many substrings + 0: aA + aA123\O6 +Matched, but too many substrings + 0: aA + 1: + +'^(?:(?<AA>X)|)(?:(?<AA>a)|b)\k{AA}'J + aa123\O3 +Matched, but too many substrings + 0: aa + aa123\O6 +Matched, but too many substrings + 0: aa + 1: <unset> + +/(?<N111>(?J)(?<N111>1(111111)11|)1|1|)(?(<N111>)1)/ + +/(?(?=0)?)+/ +Failed: nothing to repeat at offset 7 + +/(?(?=0)(?=00)?00765)/ + 00765 + 0: 00765 + +/(?(?=0)(?=00)?00765|(?!3).56)/ + 00765 + 0: 00765 + 456 + 0: 456 + ** Failers +No match + 356 +No match + +'^(a)*+(\w)' + g + 0: g + 1: <unset> + 2: g + g\O3 +Matched, but too many substrings + 0: g + +'^(?:a)*+(\w)' + g + 0: g + 1: g + g\O3 +Matched, but too many substrings + 0: g + +//C + \O\C+ +Callout 255: last capture = -1 +---> + +0 ^ +Matched, but too many substrings + +"((?2){0,1999}())?" + +/((?+1)(\1))/BZ +------------------------------------------------------------------ + Bra + Once + CBra 1 + Recurse + CBra 2 + \1 + Ket + Ket + Ket + Ket + End +------------------------------------------------------------------ + +/(?(?!)a|b)/ + bbb + 0: b + aaa +No match + +"((?2)+)((?1))" + +"(?(?<E>.*!.*)?)" +Failed: assertion expected after (?( or (?(?C) at offset 3 + +"X((?2)()*+){2}+"BZ +------------------------------------------------------------------ + Bra + X + Once + CBra 1 + Recurse + Braposzero + SCBraPos 2 + KetRpos + Ket + CBra 1 + Recurse + Braposzero + SCBraPos 2 + KetRpos + Ket + Ket + Ket + End +------------------------------------------------------------------ + +"X((?2)()*+){2}"BZ +------------------------------------------------------------------ + Bra + X + CBra 1 + Recurse + Braposzero + SCBraPos 2 + KetRpos + Ket + CBra 1 + Recurse + Braposzero + SCBraPos 2 + KetRpos + Ket + Ket + End +------------------------------------------------------------------ + +"(?<=((?2))((?1)))" +Failed: lookbehind assertion is not fixed length at offset 17 + +/(?<=\Ka)/g+ + aaaaa + 0: a + 0+ aaaa + 0: a + 0+ aaaa + 0: a + 0+ aaa + 0: a + 0+ aa + 0: a + 0+ a + 0: a + 0+ + +/(?<=\Ka)/G+ + aaaaa + 0: a + 0+ aaaa + 0: a + 0+ aaa + 0: a + 0+ aa + 0: a + 0+ a + 0: a + 0+ + +/((?2){73}(?2))((?1))/ + +/.((?2)(?R)\1)()/BZ +------------------------------------------------------------------ + Bra + Any + Once + CBra 1 + Recurse + Recurse + \1 + Ket + Ket + CBra 2 + Ket + Ket + End +------------------------------------------------------------------ + +/(?1)()((((((\1++))\x85)+)|))/ + +/(\9*+(?2);\3++()2|)++{/ +Failed: reference to non-existent subpattern at offset 22 + +/\V\x85\9*+((?2)\3++()2)*:2/ +Failed: reference to non-existent subpattern at offset 26 + +/(((?(R)){0,2}) (?''((?'R')((?'R')))))/J + +/(((?(X)){0,2}) (?''((?'X')((?'X')))))/J + +/(((?(R)){0,2}) (?''((?'X')((?'R')))))/ + +"(?J)(?'d'(?'d'\g{d}))" + +".*?\h.+.\.+\R*?\xd(?i)(?=!(?=b`b`b`\`b\xa9b!)`\a`bbbbbbbbbbbbb`bbbbbbbbbbbb*R\x85bbbbbbb\C?{((?2)(?))(( +\H){8(?<=(?1){29}\xa8bbbb\x16\xd\xc6^($(?<! )(\xa9H4){4}h}1)B))\x15')" + +"(?J:(?|(?'R')(\k'R')|((?'R'))))" + +/(?<=|(\,\$(?73591620449005828816)\xa8.{7}){6}\x09)/ +Failed: number is too big at offset 32 + +// +\O1 +Matched, but too many substrings + +/^(?:(?(1)x|)+)+$()/BZ +------------------------------------------------------------------ + Bra + ^ + SBra + SCond + 1 Cond ref + x + Alt + KetRmax + KetRmax + $ + CBra 1 + Ket + Ket + End +------------------------------------------------------------------ + +/(?=di(?<=(?1))|(?=(.))))/ +Failed: unmatched parentheses at offset 23 + +/(?(R))*+/BZ +------------------------------------------------------------------ + Bra + Braposzero + SBraPos + SCond + Cond recurse any + Ket + KetRpos + Ket + End +------------------------------------------------------------------ + +/[[:\\](?'abc')[a:]/ + +"[[[.\xe8Nq\xffq\xff\xe0\x2|||::Nq\xffq\xff\xe0\x6\x2|||::[[[:[::::::[[[[[::::::::[:[[[:[:::[[[[[[[[[[[[:::::::::::::::::[[.\xe8Nq\xffq\xff\xe0\x2|||::Nq\xffq\xff\xe0\x6\x2|||::[[[:[::::::[[[[[::::::::[:[[[:[:::[[[[[[[[[[[[[[:::E[[[:[:[[:[:::[[:::E[[[:[:[[:'[:::::E[[[:[::::::[[[:[[[[[[[::E[[[:[::::::[[[:[[[[[[[[:[[::[::::[[:::::::[[:[[[[[[[:[[::[:[[:[~" +Failed: missing terminating ] for character class at offset 353 + +/()(?(R)0)*+/BZ +------------------------------------------------------------------ + Bra + CBra 1 + Ket + Braposzero + SBraPos + SCond + Cond recurse any + 0 + Ket + KetRpos + Ket + End +------------------------------------------------------------------ + +/(?R-:(?</ +Failed: (?R or (?[+-]digits must be followed by ) at offset 3 + +/(?1){3918}(((((0(\k'R'))))(?J)(?'R'(?'R'\3){99})))/I +Capturing subpattern count = 8 +Max back reference = 8 +Named capturing subpatterns: + R 7 + R 8 +No options +Duplicate name status changes +No first char +Need char = '0' + +/(?J:(?|(:(?|(?'R')(\k'R')|((?'R')))H'Rk'Rf)|s(?'R')))/ + +/0(?0)|(1)(*THEN)(*SKIP:0)(*FAIL)/ + 01 +No match + +/((?(R8000000000)))/ +Failed: number is too big at offset 16 + +/(?(8000000000/ +Failed: number is too big at offset 13 + +/(?:ab)?(?:ab)(?:ab)/ + abab + 0: abab + ababab + 0: ababab + aba +No match + +/((*MARK:A))++a(*SKIP:B)b/ + aacb +No match + +/(?J:(?|(:(?|(?'R')(\z(?|(?'R')(\k'R')|((?'R')))k'R')|((?'R')))H'Ak'Rf)|s(?'R')))/ + 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+ +/a[[:punct:]b]/BZ +------------------------------------------------------------------ + Bra + a + [!-/:-@[-`b{-~] + Ket + End +------------------------------------------------------------------ + +/L(?#(|++<!(2)?/BZ +------------------------------------------------------------------ + Bra + L?+ + Ket + End +------------------------------------------------------------------ + +/L(?#(|++<!(2)?/BOZ +------------------------------------------------------------------ + Bra + L? + Ket + End +------------------------------------------------------------------ + +/L(?#(|++<!(2)?/BCZ +------------------------------------------------------------------ + Bra + Callout 255 0 14 + L?+ + Callout 255 14 0 + Ket + End +------------------------------------------------------------------ + +/L(?#(|++<!(2)?/BCOZ +------------------------------------------------------------------ + Bra + Callout 255 0 14 + L? + Callout 255 14 0 + Ket + End +------------------------------------------------------------------ + +/(A*)\E+/CBZ +------------------------------------------------------------------ + Bra + Callout 255 0 7 + SCBra 1 + Callout 255 1 2 + A* + Callout 255 3 0 + KetRmax + Callout 255 7 0 + Ket + End +------------------------------------------------------------------ + +/()\Q\E*]/BCZ +------------------------------------------------------------------ + Bra + Callout 255 0 7 + Brazero + SCBra 1 + Callout 255 1 0 + KetRmax + Callout 255 7 1 + ] + Callout 255 8 0 + Ket + End +------------------------------------------------------------------ + +/(?<A>)(?J:(?<B>)(?<B>))(?<C>)/ + \O\CC +Matched, but too many substrings +copy substring C failed -7 + +/(?=a\K)/ + ring bpattingbobnd $ 1,oern cou \rb\L +Start of matched string is beyond its end - displaying from end to start. + 0: a + 0L + +/(?<=((?C)0))/ + 9010 +--->9010 + 0 ^ 0 + 0 ^ 0 + 0: + 1: 0 + abcd +--->abcd + 0 ^ 0 + 0 ^ 0 + 0 ^ 0 + 0 ^ 0 +No match + +/((?J)(?'R'(?'R'(?'R'(?'R'(?'R'(?|(\k'R'))))))))/ + +/\N(?(?C)0?!.)*/ +Failed: assertion expected after (?( or (?(?C) at offset 4 + +/(?<RA>abc)(?(R)xyz)/BZ +------------------------------------------------------------------ + Bra + CBra 1 + abc + Ket + Cond + Cond recurse any + xyz + Ket + Ket + End +------------------------------------------------------------------ + +/(?<R>abc)(?(R)xyz)/BZ +------------------------------------------------------------------ + Bra + CBra 1 + abc + Ket + Cond + 1 Cond ref + xyz + Ket + Ket + End +------------------------------------------------------------------ + +/(?=.*[A-Z])/I +Capturing subpattern count = 0 +May match empty string +No options +No first char +No need char + +"(?<=(a))\1?b" + ab + 0: b + 1: a + aaab + 0: ab + 1: a + +"(?=(a))\1?b" + ab + 0: ab + 1: a + aaab + 0: ab + 1: a + +/(?(?=^))b/ + abc + 0: b + +/-- End of testinput2 --/ |