# This set of tests check the DFA matching functionality of pcre2_dfa_match(), # excluding UTF and Unicode property support. All matches are done using DFA, # forced by setting a default subject modifier at the start. #forbid_utf #subject dfa #newline_default lf anycrlf any /abc/ abc 0: abc /ab*c/ abc 0: abc abbbbc 0: abbbbc ac 0: ac /ab+c/ abc 0: abc abbbbbbc 0: abbbbbbc \= Expect no match ac No match ab No match /a*/no_auto_possess a 0: a 1: aaaaaaaaaaaaaaaaa Matched, but offsets vector is too small to show all matches 0: aaaaaaaaaaaaaaaaa 1: aaaaaaaaaaaaaaaa 2: aaaaaaaaaaaaaaa 3: aaaaaaaaaaaaaa 4: aaaaaaaaaaaaa 5: aaaaaaaaaaaa 6: aaaaaaaaaaa 7: aaaaaaaaaa 8: aaaaaaaaa 9: aaaaaaaa 10: aaaaaaa 11: aaaaaa 12: aaaaa 13: aaaa 14: aaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\=ovector=10 Matched, but offsets vector is too small to show all matches 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaa 2: aaaaaaaaaaaaaaaaaaaaaaaaaaaa 3: aaaaaaaaaaaaaaaaaaaaaaaaaaa 4: aaaaaaaaaaaaaaaaaaaaaaaaaa 5: aaaaaaaaaaaaaaaaaaaaaaaaa 6: aaaaaaaaaaaaaaaaaaaaaaaa 7: aaaaaaaaaaaaaaaaaaaaaaa 8: aaaaaaaaaaaaaaaaaaaaaa 9: aaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\=dfa_shortest 0: /(a|abcd|african)/ a 0: a abcd 0: abcd 1: a african 0: african 1: a /^abc/ abcdef 0: abc \= Expect no match xyzabc No match xyz\nabc No match /^abc/m abcdef 0: abc xyz\nabc 0: abc \= Expect no match xyzabc No match /\Aabc/ abcdef 0: abc \= Expect no match xyzabc No match xyz\nabc No match /\Aabc/m abcdef 0: abc \= Expect no match xyzabc No match xyz\nabc No match /\Gabc/ abcdef 0: abc xyzabc\=offset=3 0: abc \= Expect no match xyzabc No match xyzabc\=offset=2 No match /x\dy\Dz/ x9yzz 0: x9yzz x0y+z 0: x0y+z \= Expect no match xyz No match xxy0z No match /x\sy\Sz/ x yzz 0: x yzz x y+z 0: x y+z \= Expect no match xyz No match xxyyz No match /x\wy\Wz/ xxy+z 0: xxy+z \= Expect no match xxy0z No match x+y+z No match /x.y/ x+y 0: x+y x-y 0: x-y \= Expect no match x\ny No match /x.y/s x+y 0: x+y x-y 0: x-y x\ny 0: x\x0ay /(a.b(?s)c.d|x.y)p.q/ a+bc+dp+q 0: a+bc+dp+q a+bc\ndp+q 0: a+bc\x0adp+q x\nyp+q 0: x\x0ayp+q \= Expect no match a\nbc\ndp+q No match a+bc\ndp\nq No match x\nyp\nq No match /a\d\z/ ba0 0: a0 \= Expect no match ba0\n No match ba0\ncd No match /a\d\z/m ba0 0: a0 \= Expect no match ba0\n No match ba0\ncd No match /a\d\Z/ ba0 0: a0 ba0\n 0: a0 \= Expect no match ba0\ncd No match /a\d\Z/m ba0 0: a0 ba0\n 0: a0 \= Expect no match ba0\ncd No match /a\d$/ ba0 0: a0 ba0\n 0: a0 \= Expect no match ba0\ncd No match /a\d$/m ba0 0: a0 ba0\n 0: a0 ba0\ncd 0: a0 /abc/i abc 0: abc aBc 0: aBc ABC 0: ABC /[^a]/ abcd 0: b /ab?\w/ abz 0: abz 1: ab abbz 0: abb 1: ab azz 0: az /x{0,3}yz/ ayzq 0: yz axyzq 0: xyz axxyz 0: xxyz axxxyzq 0: xxxyz axxxxyzq 0: xxxyz \= Expect no match ax No match axx No match /x{3}yz/ axxxyzq 0: xxxyz axxxxyzq 0: xxxyz \= Expect no match ax No match axx No match ayzq No match axyzq No match axxyz No match /x{2,3}yz/ axxyz 0: xxyz axxxyzq 0: xxxyz axxxxyzq 0: xxxyz \= Expect no match ax No match axx No match ayzq No match axyzq No match /[^a]+/no_auto_possess bac 0: b bcdefax 0: bcdef 1: bcde 2: bcd 3: bc 4: b \= Expect no match aaaaa No match /[^a]*/no_auto_possess bac 0: b 1: bcdefax 0: bcdef 1: bcde 2: bcd 3: bc 4: b 5: aaaaa 0: /[^a]{3,5}/no_auto_possess xyz 0: xyz awxyza 0: wxyz 1: wxy abcdefa 0: bcdef 1: bcde 2: bcd abcdefghijk 0: bcdef 1: bcde 2: bcd \= Expect no match axya No match axa No match aaaaa No match /\d*/ 1234b567 0: 1234 xyz 0: /\D*/ a1234b567 0: a xyz 0: xyz /\d+/ ab1234c56 0: 1234 \= Expect no match xyz No match /\D+/ ab123c56 0: ab \= Expect no match 789 No match /\d?A/ 045ABC 0: 5A ABC 0: A \= Expect no match XYZ No match /\D?A/ ABC 0: A BAC 0: BA 9ABC 0: A /a+/ aaaa 0: aaaa /^.*xyz/ xyz 0: xyz ggggggggxyz 0: ggggggggxyz /^.+xyz/ abcdxyz 0: abcdxyz axyz 0: axyz \= Expect no match xyz No match /^.?xyz/ xyz 0: xyz cxyz 0: cxyz /^\d{2,3}X/ 12X 0: 12X 123X 0: 123X \= Expect no match X No match 1X No match 1234X No match /^[abcd]\d/ a45 0: a4 b93 0: b9 c99z 0: c9 d04 0: d0 \= Expect no match e45 No match abcd No match abcd1234 No match 1234 No match /^[abcd]*\d/ a45 0: a4 b93 0: b9 c99z 0: c9 d04 0: d0 abcd1234 0: abcd1 1234 0: 1 \= Expect no match e45 No match abcd No match /^[abcd]+\d/ a45 0: a4 b93 0: b9 c99z 0: c9 d04 0: d0 abcd1234 0: abcd1 \= Expect no match 1234 No match e45 No match abcd No match /^a+X/ aX 0: aX aaX 0: aaX /^[abcd]?\d/ a45 0: a4 b93 0: b9 c99z 0: c9 d04 0: d0 1234 0: 1 \= Expect no match abcd1234 No match e45 No match /^[abcd]{2,3}\d/ ab45 0: ab4 bcd93 0: bcd9 \= Expect no match 1234 No match a36 No match abcd1234 No match ee45 No match /^(abc)*\d/ abc45 0: abc4 abcabcabc45 0: abcabcabc4 42xyz 0: 4 /^(abc)+\d/ abc45 0: abc4 abcabcabc45 0: abcabcabc4 \= Expect no match 42xyz No match /^(abc)?\d/ abc45 0: abc4 42xyz 0: 4 \= Expect no match abcabcabc45 No match /^(abc){2,3}\d/ abcabc45 0: abcabc4 abcabcabc45 0: abcabcabc4 \= Expect no match abcabcabcabc45 No match abc45 No match 42xyz No match /1(abc|xyz)2(?1)3/ 1abc2abc3456 0: 1abc2abc3 1abc2xyz3456 0: 1abc2xyz3 /^(a*\w|ab)=(a*\w|ab)/ ab=ab 0: ab=ab 1: ab=a /^(a*\w|ab)=(?1)/ ab=ab 0: ab=ab 1: ab=a /^([^()]|\((?1)*\))*$/ abc 0: abc a(b)c 0: a(b)c a(b(c))d 0: a(b(c))d \= Expect no match) a(b(c)d No match /^>abc>([^()]|\((?1)*\))*abc>123abc>123abc>1(2)3abc>1(2)3abc>(1(2)3)abc>(1(2)3)a*)\d/ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa9876 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa9 \= Expect no match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /< (?: (?(R) \d++ | [^<>]*+) | (?R)) * >/x <> 0: <> 0: hij> 0: hij> hij> 0: def> 0: def> 0: <> \= Expect no match abcxyz 1 ^ ^ x 0: abcxyz 123abcxyz999 --->123abcxyz999 1 ^ ^ x 0: abcxyz /(ab|cd){3,4}/auto_callout ababab --->ababab +0 ^ ( +1 ^ a +4 ^ c +2 ^^ b +3 ^ ^ | +1 ^ ^ a +4 ^ ^ c +2 ^ ^ b +3 ^ ^ | +1 ^ ^ a +4 ^ ^ c +2 ^ ^ b +3 ^ ^ | +12 ^ ^ End of pattern +1 ^ ^ a +4 ^ ^ c 0: ababab abcdabcd --->abcdabcd +0 ^ ( +1 ^ a +4 ^ c +2 ^^ b +3 ^ ^ | +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ){3,4} +1 ^ ^ a +4 ^ ^ c +2 ^ ^ b +3 ^ ^ | +12 ^ ^ End of pattern +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ){3,4} +12 ^ ^ End of pattern 0: abcdabcd 1: abcdab abcdcdcdcdcd --->abcdcdcdcdcd +0 ^ ( +1 ^ a +4 ^ c +2 ^^ b +3 ^ ^ | +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ){3,4} +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ){3,4} +12 ^ ^ End of pattern +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ){3,4} +12 ^ ^ End of pattern 0: abcdcdcd 1: abcdcd /^abc/ abcdef 0: abc \= Expect no match abcdef\=notbol No match /^(a*|xyz)/ bcd 0: aaabcd 0: aaa xyz 0: xyz 1: xyz\=notempty 0: xyz \= Expect no match bcd\=notempty No match /xyz$/ xyz 0: xyz xyz\n 0: xyz \= Expect no match xyz\=noteol No match xyz\n\=noteol No match /xyz$/m xyz 0: xyz xyz\n 0: xyz abcxyz\npqr 0: xyz abcxyz\npqr\=noteol 0: xyz xyz\n\=noteol 0: xyz \= Expect no match xyz\=noteol No match /\Gabc/ abcdef 0: abc defabcxyz\=offset=3 0: abc \= Expect no match defabcxyz No match /^abcdef/ ab\=ps Partial match: ab abcde\=ps Partial match: abcde abcdef\=ps 0: abcdef \= Expect no match abx\=ps No match /^a{2,4}\d+z/ a\=ps Partial match: a aa\=ps Partial match: aa aa2\=ps Partial match: aa2 aaa\=ps Partial match: aaa aaa23\=ps Partial match: aaa23 aaaa12345\=ps Partial match: aaaa12345 aa0z\=ps 0: aa0z aaaa4444444444444z\=ps 0: aaaa4444444444444z \= Expect no match az\=ps No match aaaaa\=ps No match a56\=ps No match /^abcdef/ abc\=ps Partial match: abc def\=dfa_restart 0: def /(?<=foo)bar/ foob\=ps,offset=2,allusedtext Partial match: foob <<< foobar...\=ps,dfa_restart,offset=4 0: ar foobar\=offset=2 0: bar \= Expect no match xyzfo\=ps No match obar\=dfa_restart No match /(ab*(cd|ef))+X/ lkjhlkjhlkjhlkjhabbbbbbcdaefabbbbbbbefa\=ps,notbol,noteol Partial match: abbbbbbcdaefabbbbbbbefa cdabbbbbbbb\=ps,notbol,dfa_restart,noteol Partial match: cdabbbbbbbb efabbbbbbbbbbbbbbbb\=ps,notbol,dfa_restart,noteol Partial match: efabbbbbbbbbbbbbbbb bbbbbbbbbbbbcdXyasdfadf\=ps,notbol,dfa_restart,noteol 0: bbbbbbbbbbbbcdX \= Expect no match adfadadaklhlkalkajhlkjahdfasdfasdfladsfjkj\=ps,noteol No match /the quick brown fox/ the quick brown fox 0: the quick brown fox What do you know about the quick brown fox? 0: the quick brown fox \= Expect no match The quick brown FOX No match What do you know about THE QUICK BROWN FOX? No match /The quick brown fox/i the quick brown fox 0: the quick brown fox The quick brown FOX 0: The quick brown FOX What do you know about the quick brown fox? 0: the quick brown fox What do you know about THE QUICK BROWN FOX? 0: THE QUICK BROWN FOX /abcd\t\n\r\f\a\e\071\x3b\$\\\?caxyz/ abcd\t\n\r\f\a\e9;\$\\?caxyz 0: abcd\x09\x0a\x0d\x0c\x07\x1b9;$\?caxyz /a*abc?xyz+pqr{3}ab{2,}xy{4,5}pq{0,6}AB{0,}zz/ abxyzpqrrrabbxyyyypqAzz 0: abxyzpqrrrabbxyyyypqAzz abxyzpqrrrabbxyyyypqAzz 0: abxyzpqrrrabbxyyyypqAzz aabxyzpqrrrabbxyyyypqAzz 0: aabxyzpqrrrabbxyyyypqAzz aaabxyzpqrrrabbxyyyypqAzz 0: aaabxyzpqrrrabbxyyyypqAzz aaaabxyzpqrrrabbxyyyypqAzz 0: aaaabxyzpqrrrabbxyyyypqAzz abcxyzpqrrrabbxyyyypqAzz 0: abcxyzpqrrrabbxyyyypqAzz aabcxyzpqrrrabbxyyyypqAzz 0: aabcxyzpqrrrabbxyyyypqAzz aaabcxyzpqrrrabbxyyyypAzz 0: aaabcxyzpqrrrabbxyyyypAzz aaabcxyzpqrrrabbxyyyypqAzz 0: aaabcxyzpqrrrabbxyyyypqAzz aaabcxyzpqrrrabbxyyyypqqAzz 0: aaabcxyzpqrrrabbxyyyypqqAzz aaabcxyzpqrrrabbxyyyypqqqAzz 0: aaabcxyzpqrrrabbxyyyypqqqAzz aaabcxyzpqrrrabbxyyyypqqqqAzz 0: aaabcxyzpqrrrabbxyyyypqqqqAzz aaabcxyzpqrrrabbxyyyypqqqqqAzz 0: aaabcxyzpqrrrabbxyyyypqqqqqAzz aaabcxyzpqrrrabbxyyyypqqqqqqAzz 0: aaabcxyzpqrrrabbxyyyypqqqqqqAzz aaaabcxyzpqrrrabbxyyyypqAzz 0: aaaabcxyzpqrrrabbxyyyypqAzz abxyzzpqrrrabbxyyyypqAzz 0: abxyzzpqrrrabbxyyyypqAzz aabxyzzzpqrrrabbxyyyypqAzz 0: aabxyzzzpqrrrabbxyyyypqAzz aaabxyzzzzpqrrrabbxyyyypqAzz 0: aaabxyzzzzpqrrrabbxyyyypqAzz aaaabxyzzzzpqrrrabbxyyyypqAzz 0: aaaabxyzzzzpqrrrabbxyyyypqAzz abcxyzzpqrrrabbxyyyypqAzz 0: abcxyzzpqrrrabbxyyyypqAzz aabcxyzzzpqrrrabbxyyyypqAzz 0: aabcxyzzzpqrrrabbxyyyypqAzz aaabcxyzzzzpqrrrabbxyyyypqAzz 0: aaabcxyzzzzpqrrrabbxyyyypqAzz aaaabcxyzzzzpqrrrabbxyyyypqAzz 0: aaaabcxyzzzzpqrrrabbxyyyypqAzz aaaabcxyzzzzpqrrrabbbxyyyypqAzz 0: aaaabcxyzzzzpqrrrabbbxyyyypqAzz aaaabcxyzzzzpqrrrabbbxyyyyypqAzz 0: aaaabcxyzzzzpqrrrabbbxyyyyypqAzz aaabcxyzpqrrrabbxyyyypABzz 0: aaabcxyzpqrrrabbxyyyypABzz aaabcxyzpqrrrabbxyyyypABBzz 0: aaabcxyzpqrrrabbxyyyypABBzz >>>aaabxyzpqrrrabbxyyyypqAzz 0: aaabxyzpqrrrabbxyyyypqAzz >aaaabxyzpqrrrabbxyyyypqAzz 0: aaaabxyzpqrrrabbxyyyypqAzz >>>>abcxyzpqrrrabbxyyyypqAzz 0: abcxyzpqrrrabbxyyyypqAzz \= Expect no match abxyzpqrrabbxyyyypqAzz No match abxyzpqrrrrabbxyyyypqAzz No match abxyzpqrrrabxyyyypqAzz No match aaaabcxyzzzzpqrrrabbbxyyyyyypqAzz No match aaaabcxyzzzzpqrrrabbbxyyypqAzz No match aaabcxyzpqrrrabbxyyyypqqqqqqqAzz No match /^(abc){1,2}zz/ abczz 0: abczz abcabczz 0: abcabczz \= Expect no match zz No match abcabcabczz No match >>abczz No match /^(b+?|a){1,2}?c/ bc 0: bc bbc 0: bbc bbbc 0: bbbc bac 0: bac bbac 0: bbac aac 0: aac abbbbbbbbbbbc 0: abbbbbbbbbbbc bbbbbbbbbbbac 0: bbbbbbbbbbbac \= Expect no match aaac No match abbbbbbbbbbbac No match /^(b+|a){1,2}c/ bc 0: bc bbc 0: bbc bbbc 0: bbbc bac 0: bac bbac 0: bbac aac 0: aac abbbbbbbbbbbc 0: abbbbbbbbbbbc bbbbbbbbbbbac 0: bbbbbbbbbbbac \= Expect no match aaac No match abbbbbbbbbbbac No match /^(b+|a){1,2}?bc/ bbc 0: bbc /^(b*|ba){1,2}?bc/ babc 0: babc bbabc 0: bbabc bababc 0: bababc \= Expect no match bababbc No match babababc No match /^(ba|b*){1,2}?bc/ babc 0: babc bbabc 0: bbabc bababc 0: bababc \= Expect no match bababbc No match babababc No match /^\ca\cA\c[\c{\c:/ \x01\x01\e;z 0: \x01\x01\x1b;z /^[ab\]cde]/ athing 0: a bthing 0: b ]thing 0: ] cthing 0: c dthing 0: d ething 0: e \= Expect no match fthing No match [thing No match \\thing No match /^[]cde]/ ]thing 0: ] cthing 0: c dthing 0: d ething 0: e \= Expect no match athing No match fthing No match /^[^ab\]cde]/ fthing 0: f [thing 0: [ \\thing 0: \ \= Expect no match athing No match bthing No match ]thing No match cthing No match dthing No match ething No match /^[^]cde]/ athing 0: a fthing 0: f \= Expect no match ]thing No match cthing No match dthing No match ething No match /^\/ 0: \x81 /^/ 0: \xff /^[0-9]+$/ 0 0: 0 1 0: 1 2 0: 2 3 0: 3 4 0: 4 5 0: 5 6 0: 6 7 0: 7 8 0: 8 9 0: 9 10 0: 10 100 0: 100 \= Expect no match abc No match /^.*nter/ enter 0: enter inter 0: inter uponter 0: uponter /^xxx[0-9]+$/ xxx0 0: xxx0 xxx1234 0: xxx1234 \= Expect no match xxx No match /^.+[0-9][0-9][0-9]$/ x123 0: x123 xx123 0: xx123 123456 0: 123456 x1234 0: x1234 \= Expect no match 123 No match /^.+?[0-9][0-9][0-9]$/ x123 0: x123 xx123 0: xx123 123456 0: 123456 x1234 0: x1234 \= Expect no match 123 No match /^([^!]+)!(.+)=apquxz\.ixr\.zzz\.ac\.uk$/ abc!pqr=apquxz.ixr.zzz.ac.uk 0: abc!pqr=apquxz.ixr.zzz.ac.uk \= Expect no match !pqr=apquxz.ixr.zzz.ac.uk No match abc!=apquxz.ixr.zzz.ac.uk No match abc!pqr=apquxz:ixr.zzz.ac.uk No match abc!pqr=apquxz.ixr.zzz.ac.ukk No match /:/ Well, we need a colon: somewhere 0: : \= Expect no match No match without a colon No match /([\da-f:]+)$/i 0abc 0: 0abc abc 0: abc fed 0: fed E 0: E :: 0: :: 5f03:12C0::932e 0: 5f03:12C0::932e fed def 0: def Any old stuff 0: ff \= Expect no match 0zzz No match gzzz No match fed\x20 No match Any old rubbish No match /^.*\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ .1.2.3 0: .1.2.3 A.12.123.0 0: A.12.123.0 \= Expect no match .1.2.3333 No match 1.2.3 No match 1234.2.3 No match /^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/ 1 IN SOA non-sp1 non-sp2( 0: 1 IN SOA non-sp1 non-sp2( 1 IN SOA non-sp1 non-sp2 ( 0: 1 IN SOA non-sp1 non-sp2 ( \= Expect no match 1IN SOA non-sp1 non-sp2( No match /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/ a. 0: a. Z. 0: Z. 2. 0: 2. ab-c.pq-r. 0: ab-c.pq-r. sxk.zzz.ac.uk. 0: sxk.zzz.ac.uk. x-.y-. 0: x-.y-. \= Expect no match -abc.peq. No match /^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/ *.a 0: *.a *.b0-a 0: *.b0-a *.c3-b.c 0: *.c3-b.c *.c-a.b-c 0: *.c-a.b-c \= Expect no match *.0 No match *.a- No match *.a-b.c- No match *.c-a.0-c No match /^(?=ab(de))(abd)(e)/ abde 0: abde /^(?!(ab)de|x)(abd)(f)/ abdf 0: abdf /^(?=(ab(cd)))(ab)/ abcd 0: ab /^[\da-f](\.[\da-f])*$/i a.b.c.d 0: a.b.c.d A.B.C.D 0: A.B.C.D a.b.c.1.2.3.C 0: a.b.c.1.2.3.C /^\".*\"\s*(;.*)?$/ \"1234\" 0: "1234" \"abcd\" ; 0: "abcd" ; \"\" ; rhubarb 0: "" ; rhubarb \= Expect no match \"1234\" : things No match /^$/ \ 0: / ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/x ab c 0: ab c \= Expect no match abc No match ab cde No match /(?x) ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/ ab c 0: ab c \= Expect no match abc No match ab cde No match /^ a\ b[c ]d $/x a bcd 0: a bcd a b d 0: a b d \= Expect no match abcd No match ab d No match /^(a(b(c)))(d(e(f)))(h(i(j)))(k(l(m)))$/ abcdefhijklm 0: abcdefhijklm /^(?:a(b(c)))(?:d(e(f)))(?:h(i(j)))(?:k(l(m)))$/ abcdefhijklm 0: abcdefhijklm /^[\w][\W][\s][\S][\d][\D][\b][\n][\c]][\022]/ a+ Z0+\x08\n\x1d\x12 0: a+ Z0+\x08\x0a\x1d\x12 /^[.^$|()*+?{,}]+/ .^\$(*+)|{?,?} 0: .^$(*+)|{?,?} /^a*\w/ z 0: z az 0: az 1: a aaaz 0: aaaz 1: aaa 2: aa 3: a a 0: a aa 0: aa 1: a aaaa 0: aaaa 1: aaa 2: aa 3: a a+ 0: a aa+ 0: aa 1: a /^a*?\w/ z 0: z az 0: az 1: a aaaz 0: aaaz 1: aaa 2: aa 3: a a 0: a aa 0: aa 1: a aaaa 0: aaaa 1: aaa 2: aa 3: a a+ 0: a aa+ 0: aa 1: a /^a+\w/ az 0: az aaaz 0: aaaz 1: aaa 2: aa aa 0: aa aaaa 0: aaaa 1: aaa 2: aa aa+ 0: aa /^a+?\w/ az 0: az aaaz 0: aaaz 1: aaa 2: aa aa 0: aa aaaa 0: aaaa 1: aaa 2: aa aa+ 0: aa /^\d{8}\w{2,}/ 1234567890 0: 1234567890 12345678ab 0: 12345678ab 12345678__ 0: 12345678__ \= Expect no match 1234567 No match /^[aeiou\d]{4,5}$/ uoie 0: uoie 1234 0: 1234 12345 0: 12345 aaaaa 0: aaaaa \= Expect no match 123456 No match /^[aeiou\d]{4,5}?/ uoie 0: uoie 1234 0: 1234 12345 0: 12345 1: 1234 aaaaa 0: aaaaa 1: aaaa 123456 0: 12345 1: 1234 /^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]/ From abcd Mon Sep 01 12:33:02 1997 0: From abcd Mon Sep 01 12:33 /^From\s+\S+\s+([a-zA-Z]{3}\s+){2}\d{1,2}\s+\d\d:\d\d/ From abcd Mon Sep 01 12:33:02 1997 0: From abcd Mon Sep 01 12:33 From abcd Mon Sep 1 12:33:02 1997 0: From abcd Mon Sep 1 12:33 \= Expect no match From abcd Sep 01 12:33:02 1997 No match /^12.34/s 12\n34 0: 12\x0a34 12\r34 0: 12\x0d34 /\w+(?=\t)/ the quick brown\t fox 0: brown /foo(?!bar)(.*)/ foobar is foolish see? 0: foolish see? /(?:(?!foo)...|^.{0,2})bar(.*)/ foobar crowbar etc 0: rowbar etc barrel 0: barrel 2barrel 0: 2barrel A barrel 0: A barrel /^(\D*)(?=\d)(?!123)/ abc456 0: abc \= Expect no match abc123 No match /^1234(?# test newlines inside)/ 1234 0: 1234 /^1234 #comment in extended re /x 1234 0: 1234 /#rhubarb abcd/x abcd 0: abcd /^abcd#rhubarb/x abcd 0: abcd /(?!^)abc/ the abc 0: abc \= Expect no match abc No match /(?=^)abc/ abc 0: abc \= Expect no match the abc No match /^[ab]{1,3}(ab*|b)/no_auto_possess aabbbbb 0: aabbbbb 1: aabbbb 2: aabbb 3: aabb 4: aab 5: aa /^[ab]{1,3}?(ab*|b)/no_auto_possess aabbbbb 0: aabbbbb 1: aabbbb 2: aabbb 3: aabb 4: aab 5: aa /^[ab]{1,3}?(ab*?|b)/no_auto_possess aabbbbb 0: aabbbbb 1: aabbbb 2: aabbb 3: aabb 4: aab 5: aa /^[ab]{1,3}(ab*?|b)/no_auto_possess aabbbbb 0: aabbbbb 1: aabbbb 2: aabbb 3: aabb 4: aab 5: aa / (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* # optional leading comment (?: (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | " (?: # opening quote... [^\\\x80-\xff\n\015"] # Anything except backslash and quote | # or \\ [^\x80-\xff] # Escaped something (something != CR) )* " # closing quote ) # initial word (?: (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* \. (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | " (?: # opening quote... [^\\\x80-\xff\n\015"] # Anything except backslash and quote | # or \\ [^\x80-\xff] # Escaped something (something != CR) )* " # closing quote ) )* # further okay, if led by a period (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* @ (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) # initial subdomain (?: # (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* \. # if led by a period... (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) # ...further okay )* # address | # or (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | " (?: # opening quote... [^\\\x80-\xff\n\015"] # Anything except backslash and quote | # or \\ [^\x80-\xff] # Escaped something (something != CR) )* " # closing quote ) # one word, optionally followed by.... (?: [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] | # atom and space parts, or... \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) | # comments, or... " (?: # opening quote... [^\\\x80-\xff\n\015"] # Anything except backslash and quote | # or \\ [^\x80-\xff] # Escaped something (something != CR) )* " # closing quote # quoted strings )* < (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* # leading < (?: @ (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) # initial subdomain (?: # (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* \. # if led by a period... (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) # ...further okay )* (?: (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* , (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* @ (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) # initial subdomain (?: # (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* \. # if led by a period... (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) # ...further okay )* )* # further okay, if led by comma : # closing colon (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* )? # optional route (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | " (?: # opening quote... [^\\\x80-\xff\n\015"] # Anything except backslash and quote | # or \\ [^\x80-\xff] # Escaped something (something != CR) )* " # closing quote ) # initial word (?: (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* \. (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | " (?: # opening quote... [^\\\x80-\xff\n\015"] # Anything except backslash and quote | # or \\ [^\x80-\xff] # Escaped something (something != CR) )* " # closing quote ) )* # further okay, if led by a period (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* @ (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) # initial subdomain (?: # (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* \. # if led by a period... (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) # ...further okay )* # address spec (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* > # trailing > # name and address ) (?: [\040\t] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] | \( (?: [^\\\x80-\xff\n\015()] | \\ [^\x80-\xff] )* \) )* \) )* # optional trailing comment /x Alan Other 0: Alan Other 0: user@dom.ain 1: user@dom user\@dom.ain 0: user@dom.ain 1: user@dom \"A. Other\" (a comment) 0: "A. Other" (a comment) 1: "A. Other" 2: "A. Other" A. Other (a comment) 0: Other (a comment) 1: Other 2: Other \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay 0: "/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/"@x400-re.lay 1: "/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/"@x400-re A missing angle @,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom # Atom | # or " # " [^\\\x80-\xff\n\015"] * # normal (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* " # " # Quoted string ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: \. [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom # Atom | # or " # " [^\\\x80-\xff\n\015"] * # normal (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* " # " # Quoted string ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # additional words )* @ [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments (?: \. [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments )* # address | # or (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom # Atom | # or " # " [^\\\x80-\xff\n\015"] * # normal (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* " # " # Quoted string ) # leading word [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] * # "normal" atoms and or spaces (?: (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) | " # " [^\\\x80-\xff\n\015"] * # normal (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* " # " ) # "special" comment or quoted string [^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037] * # more "normal" )* < [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # < (?: @ [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments (?: \. [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments )* (?: , [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. @ [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments (?: \. [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments )* )* # additional domains : [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments )? # optional route (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom # Atom | # or " # " [^\\\x80-\xff\n\015"] * # normal (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* " # " # Quoted string ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: \. [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom # Atom | # or " # " [^\\\x80-\xff\n\015"] * # normal (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015"] * )* # ( special normal* )* " # " # Quoted string ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # additional words )* @ [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments (?: \. [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. (?: [^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+ # some number of atom characters... (?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]) # ..not followed by something that could be part of an atom | \[ # [ (?: [^\\\x80-\xff\n\015\[\]] | \\ [^\x80-\xff] )* # stuff \] # ] ) [\040\t]* # Nab whitespace. (?: \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: # ( (?: \\ [^\x80-\xff] | \( # ( [^\\\x80-\xff\n\015()] * # normal* (?: \\ [^\x80-\xff] [^\\\x80-\xff\n\015()] * )* # (special normal*)* \) # ) ) # special [^\\\x80-\xff\n\015()] * # normal* )* # )* \) # ) [\040\t]* )* # If comment found, allow more spaces. # optional trailing comments )* # address spec > # > # name and address ) /x Alan Other 0: Alan Other 0: user@dom.ain 1: user@dom user\@dom.ain 0: user@dom.ain 1: user@dom \"A. Other\" (a comment) 0: "A. Other" A. Other (a comment) 0: Other \"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"\@x400-re.lay 0: "/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/"@x400-re.lay 1: "/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/"@x400-re A missing angle ?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff /P[^*]TAIRE[^*]{1,6}?LL/ xxxxxxxxxxxPSTAIREISLLxxxxxxxxx 0: PSTAIREISLL /P[^*]TAIRE[^*]{1,}?LL/ xxxxxxxxxxxPSTAIREISLLxxxxxxxxx 0: PSTAIREISLL /(\.\d\d[1-9]?)\d+/ 1.230003938 0: .230003938 1.875000282 0: .875000282 1.235 0: .235 /(\.\d\d((?=0)|\d(?=\d)))/ 1.230003938 0: .230 1: .23 1.875000282 0: .875 \= Expect no match 1.235 No match /a(?)b/ ab 0: ab /\b(foo)\s+(\w+)/i Food is on the foo table 0: foo table /foo(.*)bar/ The food is under the bar in the barn. 0: food is under the bar in the bar 1: food is under the bar /foo(.*?)bar/ The food is under the bar in the barn. 0: food is under the bar in the bar 1: food is under the bar /(.*)(\d*)/no_auto_possess I have 2 numbers: 53147 Matched, but offsets vector is too small to show all matches 0: I have 2 numbers: 53147 1: I have 2 numbers: 5314 2: I have 2 numbers: 531 3: I have 2 numbers: 53 4: I have 2 numbers: 5 5: I have 2 numbers: 6: I have 2 numbers: 7: I have 2 numbers 8: I have 2 number 9: I have 2 numbe 10: I have 2 numb 11: I have 2 num 12: I have 2 nu 13: I have 2 n 14: I have 2 /(.*)(\d+)/ I have 2 numbers: 53147 0: I have 2 numbers: 53147 1: I have 2 /(.*?)(\d*)/no_auto_possess I have 2 numbers: 53147 Matched, but offsets vector is too small to show all matches 0: I have 2 numbers: 53147 1: I have 2 numbers: 5314 2: I have 2 numbers: 531 3: I have 2 numbers: 53 4: I have 2 numbers: 5 5: I have 2 numbers: 6: I have 2 numbers: 7: I have 2 numbers 8: I have 2 number 9: I have 2 numbe 10: I have 2 numb 11: I have 2 num 12: I have 2 nu 13: I have 2 n 14: I have 2 /(.*?)(\d+)/ I have 2 numbers: 53147 0: I have 2 numbers: 53147 1: I have 2 /(.*)(\d+)$/ I have 2 numbers: 53147 0: I have 2 numbers: 53147 /(.*?)(\d+)$/ I have 2 numbers: 53147 0: I have 2 numbers: 53147 /(.*)\b(\d+)$/ I have 2 numbers: 53147 0: I have 2 numbers: 53147 /(.*\D)(\d+)$/ I have 2 numbers: 53147 0: I have 2 numbers: 53147 /^\D*(?!123)/ ABC123 0: AB 1: A 2: /^(\D*)(?=\d)(?!123)/ ABC445 0: ABC \= Expect no match ABC123 No match /^[W-]46]/ W46]789 0: W46] -46]789 0: -46] \= Expect no match Wall No match Zebra No match 42 No match [abcd] No match ]abcd[ No match /^[W-\]46]/ W46]789 0: W Wall 0: W Zebra 0: Z Xylophone 0: X 42 0: 4 [abcd] 0: [ ]abcd[ 0: ] \\backslash 0: \ \= Expect no match -46]789 No match well No match /\d\d\/\d\d\/\d\d\d\d/ 01/01/2000 0: 01/01/2000 /word (?:[a-zA-Z0-9]+ ){0,10}otherword/ word cat dog elephant mussel cow horse canary baboon snake shark otherword 0: word cat dog elephant mussel cow horse canary baboon snake shark otherword \= Expect no match word cat dog elephant mussel cow horse canary baboon snake shark No match /word (?:[a-zA-Z0-9]+ ){0,300}otherword/ \= Expect no match word cat dog elephant mussel cow horse canary baboon snake shark the quick brown fox and the lazy dog and several other words getting close to thirty by now I hope No match /^(a){0,0}/ bcd 0: abc 0: aab 0: /^(a){0,1}/ bcd 0: abc 0: a 1: aab 0: a 1: /^(a){0,2}/ bcd 0: abc 0: a 1: aab 0: aa 1: a 2: /^(a){0,3}/ bcd 0: abc 0: a 1: aab 0: aa 1: a 2: aaa 0: aaa 1: aa 2: a 3: /^(a){0,}/ bcd 0: abc 0: a 1: aab 0: aa 1: a 2: aaa 0: aaa 1: aa 2: a 3: aaaaaaaa 0: aaaaaaaa 1: aaaaaaa 2: aaaaaa 3: aaaaa 4: aaaa 5: aaa 6: aa 7: a 8: /^(a){1,1}/ abc 0: a aab 0: a \= Expect no match bcd No match /^(a){1,2}/ abc 0: a aab 0: aa 1: a \= Expect no match bcd No match /^(a){1,3}/ abc 0: a aab 0: aa 1: a aaa 0: aaa 1: aa 2: a \= Expect no match bcd No match /^(a){1,}/ abc 0: a aab 0: aa 1: a aaa 0: aaa 1: aa 2: a aaaaaaaa 0: aaaaaaaa 1: aaaaaaa 2: aaaaaa 3: aaaaa 4: aaaa 5: aaa 6: aa 7: a \= Expect no match bcd No match /.*\.gif/ borfle\nbib.gif\nno 0: bib.gif /.{0,}\.gif/ borfle\nbib.gif\nno 0: bib.gif /.*\.gif/m borfle\nbib.gif\nno 0: bib.gif /.*\.gif/s borfle\nbib.gif\nno 0: borfle\x0abib.gif /.*\.gif/ms borfle\nbib.gif\nno 0: borfle\x0abib.gif /.*$/ borfle\nbib.gif\nno 0: no /.*$/m borfle\nbib.gif\nno 0: borfle /.*$/s borfle\nbib.gif\nno 0: borfle\x0abib.gif\x0ano /.*$/ms borfle\nbib.gif\nno 0: borfle\x0abib.gif\x0ano 1: borfle\x0abib.gif 2: borfle /.*$/ borfle\nbib.gif\nno\n 0: no /.*$/m borfle\nbib.gif\nno\n 0: borfle /.*$/s borfle\nbib.gif\nno\n 0: borfle\x0abib.gif\x0ano\x0a 1: borfle\x0abib.gif\x0ano /.*$/ms borfle\nbib.gif\nno\n 0: borfle\x0abib.gif\x0ano\x0a 1: borfle\x0abib.gif\x0ano 2: borfle\x0abib.gif 3: borfle /(.*X|^B)/ abcde\n1234Xyz 0: 1234X BarFoo 0: B \= Expect no match abcde\nBar No match /(.*X|^B)/m abcde\n1234Xyz 0: 1234X BarFoo 0: B abcde\nBar 0: B /(.*X|^B)/s abcde\n1234Xyz 0: abcde\x0a1234X BarFoo 0: B \= Expect no match abcde\nBar No match /(.*X|^B)/ms abcde\n1234Xyz 0: abcde\x0a1234X BarFoo 0: B abcde\nBar 0: B /(?s)(.*X|^B)/ abcde\n1234Xyz 0: abcde\x0a1234X BarFoo 0: B \= Expect no match abcde\nBar No match /(?s:.*X|^B)/ abcde\n1234Xyz 0: abcde\x0a1234X BarFoo 0: B \= Expect no match abcde\nBar No match /^.*B/ \= Expect no match abc\nB No match /(?s)^.*B/ abc\nB 0: abc\x0aB /(?m)^.*B/ abc\nB 0: B /(?ms)^.*B/ abc\nB 0: abc\x0aB /(?ms)^B/ abc\nB 0: B /(?s)B$/ B\n 0: B /^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]/ 123456654321 0: 123456654321 /^\d\d\d\d\d\d\d\d\d\d\d\d/ 123456654321 0: 123456654321 /^[\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d]/ 123456654321 0: 123456654321 /^[abc]{12}/ abcabcabcabc 0: abcabcabcabc /^[a-c]{12}/ abcabcabcabc 0: abcabcabcabc /^(a|b|c){12}/ abcabcabcabc 0: abcabcabcabc /^[abcdefghijklmnopqrstuvwxy0123456789]/ n 0: n \= Expect no match z No match /abcde{0,0}/ abcd 0: abcd \= Expect no match abce No match /ab[cd]{0,0}e/ abe 0: abe \= Expect no match abcde No match /ab(c){0,0}d/ abd 0: abd \= Expect no match abcd No match /a(b*)/ a 0: a ab 0: ab abbbb 0: abbbb \= Expect no match bbbbb No match /ab\d{0}e/ abe 0: abe \= Expect no match ab1e No match /"([^\\"]+|\\.)*"/ the \"quick\" brown fox 0: "quick" \"the \\\"quick\\\" brown fox\" 0: "the \"quick\" brown fox" /.*?/g,aftertext abc 0: abc 0+ 1: ab 2: a 3: 0: 0+ /\b/g,aftertext abc 0: 0+ abc 0: 0+ /\b/g,aftertext abc 0: 0+ abc 0: 0+ //g abc 0: 0: 0: 0: /]{0,})>]{0,})>([\d]{0,}\.)(.*)((
([\w\W\s\d][^<>]{0,})|[\s]{0,}))<\/a><\/TD>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><\/TR>/is 43.Word Processor
(N-1286)Lega lstaff.comCA - Statewide 0: 43.Word Processor
(N-1286)Lega lstaff.comCA - Statewide /a[^a]b/ acb 0: acb a\nb 0: a\x0ab /a.b/ acb 0: acb \= Expect no match a\nb No match /a[^a]b/s acb 0: acb a\nb 0: a\x0ab /a.b/s acb 0: acb a\nb 0: a\x0ab /^(b+?|a){1,2}?c/ bac 0: bac bbac 0: bbac bbbac 0: bbbac bbbbac 0: bbbbac bbbbbac 0: bbbbbac /^(b+|a){1,2}?c/ bac 0: bac bbac 0: bbac bbbac 0: bbbac bbbbac 0: bbbbac bbbbbac 0: bbbbbac /(?!\A)x/m a\bx\n 0: x \= Expect no match x\nb\n No match /\x0{ab}/ \0{ab} 0: \x00{ab} /(A|B)*?CD/ CD 0: CD /(A|B)*CD/ CD 0: CD /(?.*/)foo" \= Expect no match /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/it/you/see/ No match "(?>.*/)foo" /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/and/foo 0: /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/and/foo /(?>(\.\d\d[1-9]?))\d+/ 1.230003938 0: .230003938 1.875000282 0: .875000282 \= Expect no match 1.235 No match /^((?>\w+)|(?>\s+))*$/ 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 \= Expect no match this is not a line with only words and spaces! No match /(\d+)(\w)/ 12345a 0: 12345a 1: 12345 2: 1234 3: 123 4: 12 12345+ 0: 12345 1: 1234 2: 123 3: 12 /((?>\d+))(\w)/ 12345a 0: 12345a \= Expect no match 12345+ No match /(?>a+)b/ aaab 0: aaab /((?>a+)b)/ aaab 0: aaab /(?>(a+))b/ aaab 0: aaab /(?>b)+/ aaabbbccc 0: bbb 1: bb 2: b /(?>a+|b+|c+)*c/ aaabbbbccccd 0: aaabbbbcccc 1: aaabbbbc /(a+|b+|c+)*c/ aaabbbbccccd 0: aaabbbbcccc 1: aaabbbbccc 2: aaabbbbcc 3: aaabbbbc /((?>[^()]+)|\([^()]*\))+/ ((abc(ade)ufh()()x 0: abc(ade)ufh()()x 1: abc(ade)ufh()() 2: abc(ade)ufh() 3: abc(ade)ufh 4: abc(ade) 5: abc /\(((?>[^()]+)|\([^()]+\))+\)/ (abc) 0: (abc) (abc(def)xyz) 0: (abc(def)xyz) \= Expect no match ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /a(?-i)b/i ab 0: ab Ab 0: Ab \= Expect no match aB No match AB No match /(a (?x)b c)d e/ a bcd e 0: a bcd e \= Expect no match a b cd e No match abcd e No match a bcde No match /(a b(?x)c d (?-x)e f)/ a bcde f 0: a bcde f \= Expect no match abcdef No match /(a(?i)b)c/ abc 0: abc aBc 0: aBc \= Expect no match abC No match aBC No match Abc No match ABc No match ABC No match AbC No match /a(?i:b)c/ abc 0: abc aBc 0: aBc \= Expect no match ABC No match abC No match aBC No match /a(?i:b)*c/ aBc 0: aBc aBBc 0: aBBc \= Expect no match aBC No match aBBC No match /a(?=b(?i)c)\w\wd/ abcd 0: abcd abCd 0: abCd \= Expect no match aBCd No match abcD No match /(?s-i:more.*than).*million/i more than million 0: more than million more than MILLION 0: more than MILLION more \n than Million 0: more \x0a than Million \= Expect no match MORE THAN MILLION No match more \n than \n million No match /(?:(?s-i)more.*than).*million/i more than million 0: more than million more than MILLION 0: more than MILLION more \n than Million 0: more \x0a than Million \= Expect no match MORE THAN MILLION No match more \n than \n million No match /(?>a(?i)b+)+c/ abc 0: abc aBbc 0: aBbc aBBc 0: aBBc \= Expect no match Abc No match abAb No match abbC No match /(?=a(?i)b)\w\wc/ abc 0: abc aBc 0: aBc \= Expect no match Ab No match abC No match aBC No match /(?<=a(?i)b)(\w\w)c/ abxxc 0: xxc aBxxc 0: xxc \= Expect no match Abxxc No match ABxxc No match abxxC No match /^(?(?=abc)\w{3}:|\d\d)$/ abc: 0: abc: 12 0: 12 \= Expect no match 123 No match xyz No match /^(?(?!abc)\d\d|\w{3}:)$/ abc: 0: abc: 12 0: 12 \= Expect no match 123 No match xyz No match /(?(?<=foo)bar|cat)/ foobar 0: bar cat 0: cat fcat 0: cat focat 0: cat \= Expect no match foocat No match /(?(?a*)*/ a 0: a 1: aa 0: aa 1: aaaa 0: aaaa 1: /(abc|)+/ abc 0: abc 1: abcabc 0: abcabc 1: abc 2: abcabcabc 0: abcabcabc 1: abcabc 2: abc 3: xyz 0: /([a]*)*/ a 0: a 1: aaaaa 0: aaaaa 1: aaaa 2: aaa 3: aa 4: a 5: /([ab]*)*/ a 0: a 1: b 0: b 1: ababab 0: ababab 1: ababa 2: abab 3: aba 4: ab 5: a 6: aaaabcde 0: aaaab 1: aaaa 2: aaa 3: aa 4: a 5: bbbb 0: bbbb 1: bbb 2: bb 3: b 4: /([^a]*)*/ b 0: b 1: bbbb 0: bbbb 1: bbb 2: bb 3: b 4: aaa 0: /([^ab]*)*/ cccc 0: cccc 1: ccc 2: cc 3: c 4: abab 0: /([a]*?)*/ a 0: a 1: aaaa 0: aaaa 1: aaa 2: aa 3: a 4: /([ab]*?)*/ a 0: a 1: b 0: b 1: abab 0: abab 1: aba 2: ab 3: a 4: baba 0: baba 1: bab 2: ba 3: b 4: /([^a]*?)*/ b 0: b 1: bbbb 0: bbbb 1: bbb 2: bb 3: b 4: aaa 0: /([^ab]*?)*/ c 0: c 1: cccc 0: cccc 1: ccc 2: cc 3: c 4: baba 0: /(?>a*)*/ a 0: a 1: aaabcde 0: aaa 1: /((?>a*))*/ aaaaa 0: aaaaa 1: aabbaa 0: aa 1: /((?>a*?))*/ aaaaa 0: aaaaa 1: aabbaa 0: aa 1: /(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /x 12-sep-98 0: 12-sep-98 12-09-98 0: 12-09-98 \= Expect no match sep-12-98 No match /(?i:saturday|sunday)/ saturday 0: saturday sunday 0: sunday Saturday 0: Saturday Sunday 0: Sunday SATURDAY 0: SATURDAY SUNDAY 0: SUNDAY SunDay 0: SunDay /(a(?i)bc|BB)x/ abcx 0: abcx aBCx 0: aBCx bbx 0: bbx BBx 0: BBx \= Expect no match abcX No match aBCX No match bbX No match BBX No match /^([ab](?i)[cd]|[ef])/ ac 0: ac aC 0: aC bD 0: bD elephant 0: e Europe 0: E frog 0: f France 0: F \= Expect no match Africa No match /^(ab|a(?i)[b-c](?m-i)d|x(?i)y|z)/ ab 0: ab aBd 0: aBd xy 0: xy xY 0: xY zebra 0: z Zambesi 0: Z \= Expect no match aCD No match XY No match /(?<=foo\n)^bar/m foo\nbar 0: bar \= Expect no match bar No match baz\nbar No match /(?<=(?]&/ <&OUT 0: <& /(?:(f)(o)(o)|(b)(a)(r))*/ foobar 0: foobar 1: foo 2: /(?<=a)b/ ab 0: b \= Expect no match cb No match b No match /(?a+)ab/ /(?>a+)b/ aaab 0: aaab /([[:]+)/ a:[b]: 0: :[ /([[=]+)/ a=[b]= 0: =[ /([[.]+)/ a.[b]. 0: .[ /((?>a+)b)/ aaab 0: aaab /(?>(a+))b/ aaab 0: aaab /((?>[^()]+)|\([^()]*\))+/ ((abc(ade)ufh()()x 0: abc(ade)ufh()()x 1: abc(ade)ufh()() 2: abc(ade)ufh() 3: abc(ade)ufh 4: abc(ade) 5: abc /a\Z/ \= Expect no match aaab No match a\nb\n No match /b\Z/ a\nb\n 0: b /b\z/ /b\Z/ a\nb 0: b /b\z/ a\nb 0: b /(?>.*)(?<=(abcd|wxyz))/ alphabetabcd 0: alphabetabcd endingwxyz 0: endingwxyz \= Expect no match a rather long string that doesn't end with one of them No match /word (?>(?:(?!otherword)[a-zA-Z0-9]+ ){0,30})otherword/ word cat dog elephant mussel cow horse canary baboon snake shark otherword 0: word cat dog elephant mussel cow horse canary baboon snake shark otherword \= Expect no match word cat dog elephant mussel cow horse canary baboon snake shark No match /word (?>[a-zA-Z0-9]+ ){0,30}otherword/ \= Expect no match word cat dog elephant mussel cow horse canary baboon snake shark the quick brown fox and the lazy dog and several other words getting close to thirty by now I hope No match /(?<=\d{3}(?!999))foo/ 999foo 0: foo 123999foo 0: foo \= Expect no match 123abcfoo No match /(?<=(?!...999)\d{3})foo/ 999foo 0: foo 123999foo 0: foo \= Expect no match 123abcfoo No match /(?<=\d{3}(?!999)...)foo/ 123abcfoo 0: foo 123456foo 0: foo \= Expect no match 123999foo No match /(?<=\d{3}...)(?Z)+|A)*/ ZABCDEFG 0: ZA 1: Z 2: /((?>)+|A)*/ ZABCDEFG 0: /a*/g abbab 0: a 0: 0: 0: a 0: 0: /[[:space:]]+/ > \x09\x0a\x0c\x0d\x0b< 0: \x09\x0a\x0c\x0d\x0b /[[:blank:]]+/ > \x09\x0a\x0c\x0d\x0b< 0: \x09 /[\s]+/ > \x09\x0a\x0c\x0d\x0b< 0: \x09\x0a\x0c\x0d\x0b /\s+/ > \x09\x0a\x0c\x0d\x0b< 0: \x09\x0a\x0c\x0d\x0b /a b/x ab 0: ab /(?!\A)x/m a\nxb\n 0: x /(?!^)x/m \= Expect no match a\nxb\n No match /abc\Qabc\Eabc/ abcabcabc 0: abcabcabc /abc\Q(*+|\Eabc/ abc(*+|abc 0: abc(*+|abc / abc\Q abc\Eabc/x abc abcabc 0: abc abcabc \= Expect no match abcabcabc No match /abc#comment \Q#not comment literal\E/x abc#not comment\n literal 0: abc#not comment\x0a literal /abc#comment \Q#not comment literal/x abc#not comment\n literal 0: abc#not comment\x0a literal /abc#comment \Q#not comment literal\E #more comment /x abc#not comment\n literal 0: abc#not comment\x0a literal /abc#comment \Q#not comment literal\E #more comment/x abc#not comment\n literal 0: abc#not comment\x0a literal /\Qabc\$xyz\E/ abc\\\$xyz 0: abc\$xyz /\Qabc\E\$\Qxyz\E/ abc\$xyz 0: abc$xyz /\Gabc/ abc 0: abc \= Expect no match xyzabc No match /\Gabc./g abc1abc2xyzabc3 0: abc1 0: abc2 /abc./g abc1abc2xyzabc3 0: abc1 0: abc2 0: abc3 /a(?x: b c )d/ XabcdY 0: abcd \= Expect no match Xa b c d Y No match /((?x)x y z | a b c)/ XabcY 0: abc AxyzB 0: xyz /(?i)AB(?-i)C/ XabCY 0: abC \= Expect no match XabcY No match /((?i)AB(?-i)C|D)E/ abCE 0: abCE DE 0: DE \= Expect no match abcE No match abCe No match dE No match De No match /[z\Qa-d]\E]/ z 0: z a 0: a - 0: - d 0: d ] 0: ] \= Expect no match b No match /(a+)*b/ \= Expect no match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /(?i)reg(?:ul(?:[a]|ae)r|ex)/ REGular 0: REGular regulaer 0: regulaer Regex 0: Regex regulr 0: regul\xe4r /[--]+/ 0: \xc5\xe6\xe5\xe4\xe0 0: \xc5\xe6\xe5\xe4\xff 0: \xc5\xe6\xe5\xe4\xc0 0: \xc5\xe6\xe5\xe4\xdf /(?<=Z)X./ \x84XAZXB 0: XB /^(?(2)a|(1)(2))+$/ 123a Failed: error -40: backreference condition or recursion test is not supported for DFA matching /(?<=a|bbbb)c/ ac 0: c bbbbc 0: c /line\nbreak/ this is a line\nbreak 0: line\x0abreak line one\nthis is a line\nbreak in the second line 0: line\x0abreak /line\nbreak/firstline this is a line\nbreak 0: line\x0abreak \= Expect no match line one\nthis is a line\nbreak in the second line No match /line\nbreak/m,firstline this is a line\nbreak 0: line\x0abreak \= Expect no match line one\nthis is a line\nbreak in the second line No match /1234/ 123\=ps Partial match: 123 \= Expect no match a4\=ps,dfa_restart No match /1234/ 123\=ps Partial match: 123 4\=ps,dfa_restart 0: 4 /^/gm a\nb\nc\n 0: 0: 0: \ 0: /(?<=C\n)^/gm A\nC\nC\n 0: /(?s)A?B/ AB 0: AB aB 0: B /(?s)A*B/ AB 0: AB aB 0: B /(?m)A?B/ AB 0: AB aB 0: B /(?m)A*B/ AB 0: AB aB 0: B /Content-Type\x3A[^\r\n]{6,}/ Content-Type:xxxxxyyy 0: Content-Type:xxxxxyyy /Content-Type\x3A[^\r\n]{6,}z/ Content-Type:xxxxxyyyz 0: Content-Type:xxxxxyyyz /Content-Type\x3A[^a]{6,}/ Content-Type:xxxyyy 0: Content-Type:xxxyyy /Content-Type\x3A[^a]{6,}z/ Content-Type:xxxyyyz 0: Content-Type:xxxyyyz /^abc/Im,newline=lf Capture group count = 0 Options: multiline Forced newline is LF First code unit at start or follows newline Last code unit = 'c' Subject length lower bound = 3 xyz\nabc 0: abc xyz\r\nabc 0: abc \= Expect no match xyz\rabc No match xyzabc\r No match xyzabc\rpqr No match xyzabc\r\n No match xyzabc\r\npqr No match /^abc/Im,newline=crlf Capture group count = 0 Options: multiline Forced newline is CRLF First code unit at start or follows newline Last code unit = 'c' Subject length lower bound = 3 xyz\r\nabclf> 0: abc \= Expect no match xyz\nabclf No match xyz\rabclf No match /^abc/Im,newline=cr Capture group count = 0 Options: multiline Forced newline is CR First code unit at start or follows newline Last code unit = 'c' Subject length lower bound = 3 xyz\rabc 0: abc \= Expect no match xyz\nabc No match xyz\r\nabc No match /.*/I,newline=lf Capture group count = 0 May match empty string Forced newline is LF First code unit at start or follows newline Subject length lower bound = 0 abc\ndef 0: abc abc\rdef 0: abc\x0ddef abc\r\ndef 0: abc\x0d /.*/I,newline=cr Capture group count = 0 May match empty string Forced newline is CR First code unit at start or follows newline Subject length lower bound = 0 abc\ndef 0: abc\x0adef abc\rdef 0: abc abc\r\ndef 0: abc /.*/I,newline=crlf Capture group count = 0 May match empty string Forced newline is CRLF First code unit at start or follows newline Subject length lower bound = 0 abc\ndef 0: abc\x0adef abc\rdef 0: abc\x0ddef abc\r\ndef 0: abc /\w+(.)(.)?def/Is Capture group count = 2 Options: dotall Starting code units: 0 1 2 3 4 5 6 7 8 9 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 Last code unit = 'f' Subject length lower bound = 5 abc\ndef 0: abc\x0adef abc\rdef 0: abc\x0ddef abc\r\ndef 0: abc\x0d\x0adef /\w+(.)(.)?def/s abc\ndef 0: abc\x0adef abc\rdef 0: abc\x0ddef abc\r\ndef 0: abc\x0d\x0adef /^\w+=.*(\\\n.*)*/ abc=xyz\\\npqr 0: abc=xyz\\x0apqr 1: abc=xyz\\x0apq 2: abc=xyz\\x0ap 3: abc=xyz\\x0a 4: abc=xyz\ 5: abc=xyz 6: abc=xy 7: abc=x 8: abc= /^(a()*)*/ aaaa 0: aaaa 1: aaa 2: aa 3: a 4: /^(?:a(?:(?:))*)*/ aaaa 0: aaaa 1: aaa 2: aa 3: a 4: /^(a()+)+/ aaaa 0: aaaa 1: aaa 2: aa 3: a /^(?:a(?:(?:))+)+/ aaaa 0: aaaa 1: aaa 2: aa 3: a /(a|)*\d/ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 \= Expect no match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /(?>a|)*\d/ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 \= Expect no match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /(?:a|)*\d/ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 \= Expect no match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /^a.b/newline=lf a\rb 0: a\x0db \= Expect no match a\nb No match /^a.b/newline=cr a\nb 0: a\x0ab \= Expect no match a\rb No match /^a.b/newline=anycrlf a\x85b 0: a\x85b \= Expect no match a\rb No match /^a.b/newline=any \= Expect no match a\nb No match a\rb No match a\x85b No match /^abc./gmx,newline=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.$/gmx,newline=any abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc9 0: abc1 0: abc2 0: abc3 0: abc4 0: abc5 0: abc6 0: abc9 /^a\Rb/bsr=unicode a\nb 0: a\x0ab a\rb 0: a\x0db a\r\nb 0: a\x0d\x0ab a\x0bb 0: a\x0bb a\x0cb 0: a\x0cb a\x85b 0: a\x85b \= Expect no match a\n\rb No match /^a\R*b/bsr=unicode ab 0: ab a\nb 0: a\x0ab a\rb 0: a\x0db a\r\nb 0: a\x0d\x0ab a\x0bb 0: a\x0bb a\x0cb 0: a\x0cb a\x85b 0: a\x85b a\n\rb 0: a\x0a\x0db a\n\r\x85\x0cb 0: a\x0a\x0d\x85\x0cb /^a\R+b/bsr=unicode a\nb 0: a\x0ab a\rb 0: a\x0db a\r\nb 0: a\x0d\x0ab a\x0bb 0: a\x0bb a\x0cb 0: a\x0cb a\x85b 0: a\x85b a\n\rb 0: a\x0a\x0db a\n\r\x85\x0cb 0: a\x0a\x0d\x85\x0cb \= Expect no match ab No match /^a\R{1,3}b/bsr=unicode a\nb 0: a\x0ab a\n\rb 0: a\x0a\x0db a\n\r\x85b 0: a\x0a\x0d\x85b a\r\n\r\nb 0: a\x0d\x0a\x0d\x0ab a\r\n\r\n\r\nb 0: a\x0d\x0a\x0d\x0a\x0d\x0ab a\n\r\n\rb 0: a\x0a\x0d\x0a\x0db a\n\n\r\nb 0: a\x0a\x0a\x0d\x0ab \= Expect no match a\n\n\n\rb No match a\r No match /.+foo/ afoo 0: afoo \= Expect no match \r\nfoo No match \nfoo No match /.+foo/newline=crlf afoo 0: afoo \nfoo 0: \x0afoo \= Expect no match \r\nfoo No match /.+foo/newline=any afoo 0: afoo \= Expect no match \nfoo No match \r\nfoo No match /.+foo/s afoo 0: afoo \r\nfoo 0: \x0d\x0afoo \nfoo 0: \x0afoo /^$/gm,newline=any abc\r\rxyz 0: abc\n\rxyz 0: \= Expect no match abc\r\nxyz No match /^X/m XABC 0: X \= Expect no match XABC\=notbol No match /(?m)^$/g,newline=any,aftertext abc\r\n\r\n 0: 0+ \x0d\x0a /(?m)^$|^\r\n/g,newline=any,aftertext abc\r\n\r\n 0: \x0d\x0a 0+ 1: /(?m)$/g,newline=any,aftertext abc\r\n\r\n 0: 0+ \x0d\x0a\x0d\x0a 0: 0+ \x0d\x0a 0: 0+ /(?|(abc)|(xyz))/ >abc< 0: abc >xyz< 0: xyz /(x)(?|(abc)|(xyz))(x)/ xabcx 0: xabcx xxyzx 0: xxyzx /(x)(?|(abc)(pqr)|(xyz))(x)/ xabcpqrx 0: xabcpqrx xxyzx 0: xxyzx /(?|(abc)|(xyz))(?1)/ abcabc 0: abcabc xyzabc 0: xyzabc \= Expect no match xyzxyz No match /\H\h\V\v/ X X\x0a 0: X X\x0a X\x09X\x0b 0: X\x09X\x0b \= Expect no match \xa0 X\x0a No match /\H*\h+\V?\v{3,4}/ \x09\x20\xa0X\x0a\x0b\x0c\x0d\x0a 0: \x09 \xa0X\x0a\x0b\x0c\x0d \x09\x20\xa0\x0a\x0b\x0c\x0d\x0a 0: \x09 \xa0\x0a\x0b\x0c\x0d \x09\x20\xa0\x0a\x0b\x0c 0: \x09 \xa0\x0a\x0b\x0c \= Expect no match \x09\x20\xa0\x0a\x0b No match /\H{3,4}/ XY ABCDE 0: ABCD XY PQR ST 0: PQR /.\h{3,4}./ XY AB PQRS 0: B P 1: B /\h*X\h?\H+Y\H?Z/ >XNNNYZ 0: XNNNYZ > X NYQZ 0: X NYQZ \= Expect no match >XYZ No match > X NY Z No match /\v*X\v?Y\v+Z\V*\x0a\V+\x0b\V{2,3}\x0c/ >XY\x0aZ\x0aA\x0bNN\x0c 0: XY\x0aZ\x0aA\x0bNN\x0c >\x0a\x0dX\x0aY\x0a\x0bZZZ\x0aAAA\x0bNNN\x0c 0: \x0a\x0dX\x0aY\x0a\x0bZZZ\x0aAAA\x0bNNN\x0c /.+A/newline=crlf \= Expect no match \r\nA No match /\nA/newline=crlf \r\nA 0: \x0aA /[\r\n]A/newline=crlf \r\nA 0: \x0aA /(\r|\n)A/newline=crlf \r\nA 0: \x0aA /a\Rb/I,bsr=anycrlf Capture group count = 0 \R matches CR, LF, or CRLF First code unit = 'a' Last code unit = 'b' Subject length lower bound = 3 a\rb 0: a\x0db a\nb 0: a\x0ab a\r\nb 0: a\x0d\x0ab \= Expect no match a\x85b No match a\x0bb No match /a\Rb/I,bsr=unicode Capture group count = 0 \R matches any Unicode newline First code unit = 'a' Last code unit = 'b' Subject length lower bound = 3 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 /a\R?b/I,bsr=anycrlf Capture group count = 0 \R matches CR, LF, or CRLF First code unit = 'a' Last code unit = 'b' Subject length lower bound = 2 a\rb 0: a\x0db a\nb 0: a\x0ab a\r\nb 0: a\x0d\x0ab \= Expect no match a\x85b No match a\x0bb No match /a\R?b/I,bsr=unicode Capture group count = 0 \R matches any Unicode newline First code unit = 'a' Last code unit = 'b' Subject length lower bound = 2 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 /a\R{2,4}b/I,bsr=anycrlf Capture group count = 0 \R matches CR, LF, or CRLF First code unit = 'a' Last code unit = 'b' Subject length lower bound = 4 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 \= Expect no match a\x0b\x0bb No match a\x85\x85b No match /a\R{2,4}b/I,bsr=unicode Capture group count = 0 \R matches any Unicode newline First code unit = 'a' Last code unit = 'b' Subject length lower bound = 4 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\x85b 0: a\x85\x85b a\x0b\x0bb 0: a\x0b\x0bb \= Expect no match a\r\r\r\r\rb No match /a(?!)|\wbc/ abc 0: abc /a[]b/alt_bsux,allow_empty_class,match_unset_backref,dupnames \= Expect no match ab No match /a[]+b/alt_bsux,allow_empty_class,match_unset_backref,dupnames \= Expect no match ab No match /a[]*+b/alt_bsux,allow_empty_class,match_unset_backref,dupnames \= Expect no match ab No match /a[^]b/alt_bsux,allow_empty_class,match_unset_backref,dupnames aXb 0: aXb a\nb 0: a\x0ab \= Expect no match ab No match /a[^]+b/alt_bsux,allow_empty_class,match_unset_backref,dupnames aXb 0: aXb a\nX\nXb 0: a\x0aX\x0aXb \= Expect no match ab No match /X$/dollar_endonly X 0: X \= Expect no match X\n No match /X$/ X 0: X X\n 0: X /xyz/auto_callout xyz --->xyz +0 ^ x +1 ^^ y +2 ^ ^ z +3 ^ ^ End of pattern 0: xyz abcxyz --->abcxyz +0 ^ x +1 ^^ y +2 ^ ^ z +3 ^ ^ End of pattern 0: xyz \= Expect no match abc No match abcxypqr No match /xyz/auto_callout,no_start_optimize abcxyz --->abcxyz +0 ^ x +0 ^ x +0 ^ x +0 ^ x +1 ^^ y +2 ^ ^ z +3 ^ ^ End of pattern 0: xyz \= Expect no match abc --->abc +0 ^ x +0 ^ x +0 ^ x +0 ^ x No match abcxypqr --->abcxypqr +0 ^ x +0 ^ x +0 ^ x +0 ^ x +1 ^^ y +2 ^ ^ z +0 ^ x +0 ^ x +0 ^ x +0 ^ x +0 ^ x No match /(*NO_START_OPT)xyz/auto_callout abcxyz --->abcxyz +15 ^ x +15 ^ x +15 ^ x +15 ^ x +16 ^^ y +17 ^ ^ z +18 ^ ^ End of pattern 0: xyz /(?C)ab/ ab --->ab 0 ^ a 0: ab ab\=callout_none 0: ab /ab/auto_callout ab --->ab +0 ^ a +1 ^^ b +2 ^ ^ End of pattern 0: ab ab\=callout_none 0: ab /^"((?(?=[a])[^"])|b)*"$/auto_callout "ab" --->"ab" +0 ^ ^ +1 ^ " +2 ^^ ( +21 ^^ " +3 ^^ (? +18 ^^ b +5 ^^ (?= +8 ^ [a] +11 ^^ ) +12 ^^ [^"] +16 ^ ^ ) +17 ^ ^ | +21 ^ ^ " +3 ^ ^ (? +18 ^ ^ b +5 ^ ^ (?= +8 ^ [a] +19 ^ ^ )* +21 ^ ^ " +3 ^ ^ (? +18 ^ ^ b +5 ^ ^ (?= +8 ^ [a] +17 ^ ^ | +22 ^ ^ $ +23 ^ ^ End of pattern 0: "ab" "ab"\=callout_none 0: "ab" /\d+X|9+Y/ ++++123999\=ps Partial match: 123999 ++++123999Y\=ps 0: 999Y /Z(*F)/ \= Expect no match Z\=ps No match ZA\=ps No match /Z(?!)/ \= Expect no match Z\=ps No match ZA\=ps No match /dog(sbody)?/ dogs\=ps 0: dog dogs\=ph Partial match: dogs /dog(sbody)??/ dogs\=ps 0: dog dogs\=ph Partial match: dogs /dog|dogsbody/ dogs\=ps 0: dog dogs\=ph Partial match: dogs /dogsbody|dog/ dogs\=ps 0: dog dogs\=ph Partial match: dogs /Z(*F)Q|ZXY/ Z\=ps Partial match: Z \= Expect no match ZA\=ps No match X\=ps No match /\bthe cat\b/ the cat\=ps 0: the cat the cat\=ph Partial match: the cat /dog(sbody)?/ dogs\=ps 0: dog body\=dfa_restart 0: body /dog(sbody)?/ dogs\=ph Partial match: dogs body\=dfa_restart 0: body /abc/ abc\=ps 0: abc abc\=ph 0: abc /abc\K123/ xyzabc123pqr Failed: error -42: pattern contains an item that is not supported for DFA matching /(?<=abc)123/allusedtext xyzabc123pqr 0: abc123 <<< xyzabc12\=ps Partial match: abc12 <<< xyzabc12\=ph Partial match: abc12 <<< /\babc\b/allusedtext +++abc+++ 0: +abc+ < > +++ab\=ps Partial match: +ab < +++ab\=ph Partial match: +ab < /(?=C)/g,aftertext ABCDECBA 0: 0+ CDECBA 0: 0+ CBA /(abc|def|xyz)/I Capture group count = 1 Starting code units: a d x Subject length lower bound = 3 terhjk;abcdaadsfe 0: abc the quick xyz brown fox 0: xyz \= Expect no match thejk;adlfj aenjl;fda asdfasd ehj;kjxyasiupd No match /(abc|def|xyz)/I,no_start_optimize Capture group count = 1 Options: no_start_optimize terhjk;abcdaadsfe 0: abc the quick xyz brown fox 0: xyz \= Expect no match thejk;adlfj aenjl;fda asdfasd ehj;kjxyasiupd No match /abcd*/aftertext xxxxabcd\=ps 0: abcd 0+ xxxxabcd\=ph Partial match: abcd dddxxx\=dfa_restart 0: ddd 0+ xxx xxxxabcd\=ph Partial match: abcd xxx\=dfa_restart 0: 0+ xxx /abcd*/i xxxxabcd\=ps 0: abcd xxxxabcd\=ph Partial match: abcd XXXXABCD\=ps 0: ABCD XXXXABCD\=ph Partial match: ABCD /abc\d*/ xxxxabc1\=ps 0: abc1 xxxxabc1\=ph Partial match: abc1 /abc[de]*/ xxxxabcde\=ps 0: abcde xxxxabcde\=ph Partial match: abcde /(?:(?1)|B)(A(*F)|C)/ ABCD 0: BC CCD 0: CC \= Expect no match CAD No match /^(?:(?1)|B)(A(*F)|C)/ CCD 0: CC BCD 0: BC \= Expect no match ABCD No match CAD No match BAD No match /^(?!a(*SKIP)b)/ ac Failed: error -42: pattern contains an item that is not supported for DFA matching /^(?=a(*SKIP)b|ac)/ ac Failed: error -42: pattern contains an item that is not supported for DFA matching /^(?=a(*THEN)b|ac)/ ac Failed: error -42: pattern contains an item that is not supported for DFA matching /^(?=a(*PRUNE)b)/ ab Failed: error -42: pattern contains an item that is not supported for DFA matching /^(?(?!a(*SKIP)b))/ ac Failed: error -42: pattern contains an item that is not supported for DFA matching /(?<=abc)def/allusedtext abc\=ph Partial match: abc <<< /abc$/ abc 0: abc abc\=ps 0: abc abc\=ph Partial match: abc /abc$/m abc 0: abc abc\n 0: abc abc\=ph Partial match: abc abc\n\=ph 0: abc abc\=ps 0: abc abc\n\=ps 0: abc /abc\z/ abc 0: abc abc\=ps 0: abc abc\=ph Partial match: abc /abc\Z/ abc 0: abc abc\=ps 0: abc abc\=ph Partial match: abc /abc\b/ abc 0: abc abc\=ps 0: abc abc\=ph Partial match: abc /abc\B/ abc\=ps Partial match: abc abc\=ph Partial match: abc \= Expect no match abc No match /.+/ abc\=offset=0 0: abc abc\=offset=1 0: bc abc\=offset=2 0: c \= Bad offsets abc\=offset=4 Failed: error -33: bad offset value abc\=offset=-4 ** Invalid value in 'offset=-4' \= Expect no match abc\=offset=3 No match /^(?:a)++\w/ aaaab 0: aaaab \= Expect no match aaaa No match bbb No match /^(?:aa|(?:a)++\w)/ aaaab 0: aaaab 1: aa aaaa 0: aa \= Expect no match bbb No match /^(?:a)*+\w/ aaaab 0: aaaab bbb 0: b \= Expect no match aaaa No match /^(a)++\w/ aaaab 0: aaaab \= Expect no match aaaa No match bbb No match /^(a|)++\w/ aaaab 0: aaaab \= Expect no match aaaa No match bbb No match /(?=abc){3}abc/aftertext abcabcabc 0: abc 0+ abcabc \= Expect no match xyz No match /(?=abc)+abc/aftertext abcabcabc 0: abc 0+ abcabc \= Expect no match xyz No match /(?=abc)++abc/aftertext abcabcabc 0: abc 0+ abcabc \= Expect no match xyz No match /(?=abc){0}xyz/ xyz 0: xyz /(?=abc){1}xyz/ \= Expect no match xyz No match /(?=(a))?./ ab 0: a bc 0: b /(?=(a))??./ ab 0: a bc 0: b /^(?=(a)){0}b(?1)/ backgammon 0: ba /^(?=(?1))?[az]([abc])d/ abd 0: abd zcdxx 0: zcd /^(?!a){0}\w+/ aaaaa 0: aaaaa /(?<=(abc))?xyz/ abcxyz 0: xyz pqrxyz 0: xyz /((?2))((?1))/ abc Failed: error -52: nested recursion at the same subject position /(?(R)a+|(?R)b)/ aaaabcde 0: aaaab /(?(R)a+|((?R))b)/ aaaabcde 0: aaaab /((?(R)a+|(?1)b))/ aaaabcde 0: aaaab /((?(R2)a+|(?1)b))()/ aaaabcde Failed: error -40: backreference condition or recursion test is not supported for DFA matching /(?(R)a*(?1)|((?R))b)/ aaaabcde Failed: error -52: nested recursion at the same subject position /(a+)/no_auto_possess aaaa\=ovector=3 Matched, but offsets vector is too small to show all matches 0: aaaa 1: aaa 2: aa aaaa\=ovector=4 0: aaaa 1: aaa 2: aa 3: a /^\R/ \r\=ps 0: \x0d \r\=ph Partial match: \x0d /^\R{2,3}x/ \r\=ps Partial match: \x0d \r\=ph Partial match: \x0d \r\r\=ps Partial match: \x0d\x0d \r\r\=ph Partial match: \x0d\x0d \r\r\r\=ps Partial match: \x0d\x0d\x0d \r\r\r\=ph Partial match: \x0d\x0d\x0d \r\rx 0: \x0d\x0dx \r\r\rx 0: \x0d\x0d\x0dx /^\R{2,3}?x/ \r\=ps Partial match: \x0d \r\=ph Partial match: \x0d \r\r\=ps Partial match: \x0d\x0d \r\r\=ph Partial match: \x0d\x0d \r\r\r\=ps Partial match: \x0d\x0d\x0d \r\r\r\=ph Partial match: \x0d\x0d\x0d \r\rx 0: \x0d\x0dx \r\r\rx 0: \x0d\x0d\x0dx /^\R?x/ \r\=ps Partial match: \x0d \r\=ph Partial match: \x0d x 0: x \rx 0: \x0dx /^\R+x/ \r\=ps Partial match: \x0d \r\=ph Partial match: \x0d \r\n\=ps Partial match: \x0d\x0a \r\n\=ph Partial match: \x0d\x0a \rx 0: \x0dx /^a$/newline=crlf a\r\=ps Partial match: a\x0d a\r\=ph Partial match: a\x0d /^a$/m,newline=crlf a\r\=ps Partial match: a\x0d a\r\=ph Partial match: a\x0d /^(a$|a\r)/newline=crlf a\r\=ps 0: a\x0d a\r\=ph Partial match: a\x0d /^(a$|a\r)/m,newline=crlf a\r\=ps 0: a\x0d a\r\=ph Partial match: a\x0d /./newline=crlf \r\=ps 0: \x0d \r\=ph Partial match: \x0d /.{2,3}/newline=crlf \r\=ps Partial match: \x0d \r\=ph Partial match: \x0d \r\r\=ps 0: \x0d\x0d \r\r\=ph Partial match: \x0d\x0d \r\r\r\=ps 0: \x0d\x0d\x0d \r\r\r\=ph Partial match: \x0d\x0d\x0d /.{2,3}?/newline=crlf \r\=ps Partial match: \x0d \r\=ph Partial match: \x0d \r\r\=ps 0: \x0d\x0d \r\r\=ph Partial match: \x0d\x0d \r\r\r\=ps 0: \x0d\x0d\x0d 1: \x0d\x0d \r\r\r\=ph Partial match: \x0d\x0d\x0d # Test simple validity check for restarts /abcdef/ abc\=dfa_restart Failed: error -38: invalid data in workspace for DFA restart /)(.)|(?R))++)*F>/ text text xxxxx text F> text2 more text. 0: text xxxxx text F> /^(?>.{4})abc|^\w\w.xabcd/ xxxxabcd 0: xxxxabcd 1: xxxxabc xx\xa0xabcd 0: xx\xa0xabcd 1: xx\xa0xabc /^(.{4}){2}+abc|^\w\w.x\w\w\w\wabcd/ xxxxxxxxabcd 0: xxxxxxxxabcd 1: xxxxxxxxabc xx\xa0xxxxxabcd 0: xx\xa0xxxxxabcd 1: xx\xa0xxxxxabc /abcd/ abcd\=ovector=0 0: abcd # These tests show up auto-possessification /[ab]*/ aaaa 0: aaaa /[ab]*?/ aaaa 0: aaaa 1: aaa 2: aa 3: a 4: /[ab]?/ aaaa 0: a /[ab]??/ aaaa 0: a 1: /[ab]+/ aaaa 0: aaaa /[ab]+?/ aaaa 0: aaaa 1: aaa 2: aa 3: a /[ab]{2,3}/ aaaa 0: aaa /[ab]{2,3}?/ aaaa 0: aaa 1: aa /[ab]{2,}/ aaaa 0: aaaa /[ab]{2,}?/ aaaa 0: aaaa 1: aaa 2: aa '\A(?:[^\"]++|\"(?:[^\"]*+|\"\")*+\")++' NON QUOTED \"QUOT\"\"ED\" AFTER \"NOT MATCHED 0: NON QUOTED "QUOT""ED" AFTER '\A(?:[^\"]++|\"(?:[^\"]++|\"\")*+\")++' NON QUOTED \"QUOT\"\"ED\" AFTER \"NOT MATCHED 0: NON QUOTED "QUOT""ED" AFTER /abc(?=xyz)/allusedtext abcxyzpqr 0: abcxyz >>> abcxyzpqr\=aftertext 0: abcxyz >>> 0+ xyzpqr /(?<=pqr)abc(?=xyz)/allusedtext xyzpqrabcxyzpqr 0: pqrabcxyz <<< >>> xyzpqrabcxyzpqr\=aftertext 0: pqrabcxyz <<< >>> 0+ xyzpqr /a\b/ a.\=allusedtext 0: a. > a\=allusedtext 0: a /abc(?=abcde)(?=ab)/allusedtext abcabcdefg 0: abcabcde >>>>> /a*?b*?/ ab 0: ab 1: a 2: /(*NOTEMPTY)a*?b*?/ ab 0: ab 1: a ba 0: b cb 0: b /(*NOTEMPTY_ATSTART)a*?b*?/aftertext ab 0: ab 0+ 1: a cdab 0: 0+ dab /(a)(b)|(c)/ XcX\=ovector=2,get=1,get=2,get=3,get=4,getall 0: c Get substring 1 failed (-55): requested value is not set Get substring 2 failed (-54): requested value is not available Get substring 3 failed (-54): requested value is not available Get substring 4 failed (-54): requested value is not available 0L c /(?aa)/ aa\=get=A 0: aa Get substring 'A' failed (-41): function is not supported for DFA matching aa\=copy=A 0: aa Copy substring 'A' failed (-41): function is not supported for DFA matching /a+/no_auto_possess a\=ovector=2,get=1,get=2,getall 0: a Get substring 1 failed (-55): requested value is not set Get substring 2 failed (-54): requested value is not available 0L a aaa\=ovector=2,get=1,get=2,getall Matched, but offsets vector is too small to show all matches 0: aaa 1: aa 1G aa (2) Get substring 2 failed (-54): requested value is not available 0L aaa 1L aa /a(b)c(d)/ abc\=ph,copy=0,copy=1,getall Partial match: abc 0C abc (3) Copy substring 1 failed (-2): partial match get substring list failed (-2): partial match /ab(?C" any text with spaces ")cde/B ------------------------------------------------------------------ Bra ab CalloutStr " any text with spaces " 6 30 1 cde Ket End ------------------------------------------------------------------ abcde Callout (6): " any text with spaces " --->abcde ^ ^ c 0: abcde 12abcde Callout (6): " any text with spaces " --->12abcde ^ ^ c 0: abcde /^a(b)c(?C1)def/ abcdef --->abcdef 1 ^ ^ d 0: abcdef /^a(b)c(?C"AB")def/ abcdef Callout (10): "AB" --->abcdef ^ ^ d 0: abcdef /^a(b)c(?C1)def/ abcdef\=callout_capture Callout 1: last capture = 0 --->abcdef ^ ^ d 0: abcdef /^a(b)c(?C{AB})def/B ------------------------------------------------------------------ Bra ^ a CBra 1 b Ket c CalloutStr {AB} 10 14 1 def Ket End ------------------------------------------------------------------ abcdef\=callout_capture Callout (10): {AB} last capture = 0 --->abcdef ^ ^ d 0: abcdef /^(?(?C25)(?=abc)abcd|xyz)/B ------------------------------------------------------------------ Bra ^ Cond Callout 25 9 3 Assert abc Ket abcd Alt xyz Ket Ket End ------------------------------------------------------------------ abcdefg --->abcdefg 25 ^ (?= 0: abcd xyz123 --->xyz123 25 ^ (?= 0: xyz /^(?(?C$abc$)(?=abc)abcd|xyz)/B ------------------------------------------------------------------ Bra ^ Cond CalloutStr $abc$ 7 12 3 Assert abc Ket abcd Alt xyz Ket Ket End ------------------------------------------------------------------ abcdefg Callout (7): $abc$ --->abcdefg ^ (?= 0: abcd xyz123 Callout (7): $abc$ --->xyz123 ^ (?= 0: xyz /^ab(?C'first')cd(?C"second")ef/ abcdefg Callout (7): 'first' --->abcdefg ^ ^ c Callout (20): "second" --->abcdefg ^ ^ e 0: abcdef /(?:a(?C`code`)){3}X/ aaaXY Callout (8): `code` --->aaaXY ^^ ){3} Callout (8): `code` --->aaaXY ^ ^ ){3} Callout (8): `code` --->aaaXY ^ ^ ){3} 0: aaaX # Binary zero in callout string /"a(?C'x" 00 "z')b"/hex abcdefgh Callout (5): 'x\x00z' --->abcdefgh ^^ b 0: ab /(?(?!)a|b)/ bbb 0: b \= Expect no match aaa No match /^/gm \n\n\n 0: 0: 0: /^/gm,alt_circumflex \n\n\n 0: 0: 0: 0: /abc/use_offset_limit 1234abcde\=offset_limit=100 0: abc 1234abcde\=offset_limit=9 0: abc 1234abcde\=offset_limit=4 0: abc 1234abcde\=offset_limit=4,offset=4 0: abc \= Expect no match 1234abcde\=offset_limit=4,offset=5 No match 1234abcde\=offset_limit=3 No match /(?<=abc)/use_offset_limit 1234abc\=offset_limit=7 0: \= Expect no match 1234abc\=offset_limit=6 No match /abcd/null_context abcd\=null_context 0: abcd /()()a+/no_auto_possess aaa\=allcaptures ** Ignored after DFA matching: allcaptures 0: aaa 1: aa 2: a a\=allcaptures ** Ignored after DFA matching: allcaptures 0: a /(*LIMIT_DEPTH=100)^((.)(?1)|.)$/ \= Expect depth limit exceeded a[00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00] Failed: error -53: matching depth limit exceeded /(*LIMIT_HEAP=0)^((.)(?1)|.)$/ \= Expect heap limit exceeded a[00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00] Failed: error -63: heap limit exceeded /(*LIMIT_HEAP=50000)^((.)(?1)|.)$/ \= Expect success a[00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00] 0: a[00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00] /(02-)?[0-9]{3}-[0-9]{3}/ 02-123-123 0: 02-123-123 /^(a(?2))(b)(?1)/ abbab\=find_limits Minimum heap limit = 0 Minimum match limit = 4 Minimum depth limit = 2 0: abbab /abc/endanchored xyzabc 0: abc \= Expect no match xyzabcdef No match \= Expect error xyzabc\=ph Failed: error -34: bad option value /abc/ xyzabc\=endanchored 0: abc \= Expect no match xyzabcdef\=endanchored No match \= Expect error xyzabc\=ps,endanchored Failed: error -34: bad option value /abc|bcd/endanchored xyzabcd 0: bcd \= Expect no match xyzabcdef No match /(*NUL)^.*/ a\nb\x00ccc 0: a\x0ab /(*NUL)^.*/s a\nb\x00ccc 0: a\x0ab\x00ccc /^x/m,newline=nul ab\x00xy 0: x /'#comment' 0d 0a 00 '^x\' 0a 'y'/x,newline=nul,hex x\nyz 0: x\x0ay /(*NUL)^X\NY/ X\nY 0: X\x0aY X\rY 0: X\x0dY \= Expect no match X\x00Y No match /(?<=abc|)/ abcde\=aftertext 0: 0+ abcde /(?<=|abc)/ abcde\=aftertext 0: 0+ abcde /(?<=abc|)/endanchored abcde\=aftertext 0: 0+ /(?<=|abc)/endanchored abcde\=aftertext 0: 0+ /(*LIMIT_MATCH=100).*(?![|H]?.*(?![|H]?););.*(?![|H]?.*(?![|H]?););\x00\x00\x00\x00\x00\x00\x00(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?![|);)?.*(![|H]?);)?.*(?![|H]?);)?.*(?![|H]?);)?.*(?![|H]););![|H]?););[|H]?);|H]?);)\x00\x00\x00 \x00\x00\x00H]?););?![|H]?);)?.*(?![|H]?););[||H]?);)?.*(?![|H]?););[|H]?);(?![|H]?););![|H]?););[|H]?);|H]?);)?.*(?![|H]?););;[\x00\x00\x00\x00\x00\x00\x00![|H]?););![|H]?););[|H]?);|H]?);)?.*(?![|H]?););/no_dotstar_anchor \= Expect limit exceeded .*(?![|H]?.*(?![|H]?););.*(?![|H]?.*(?![|H]?););\x00\x00\x00\x00\x00\x00\x00(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?!(?![|);)?.*(![|H]?);)?.*(?![|H]?);)?.*(?![|H]?);)?.*(?![|H]););![|H]?););[|H]?);|H]?);)\x00\x00\x00 \x00\x00\x00H]?););?![|H]?);)?.*(?![|H]?););[||H]?);)?.*(?![|H]?););[|H]?);(?![|H]?););![|H]?););[|H]?);|H]?);)?.*(?![|H]?););;[\x00\x00\x00\x00\x00\x00\x00![|H]?););![|H]?););[|H]?);|H]?);)?.*(?![|H]?);); Failed: error -47: match limit exceeded /\n/firstline xyz\nabc 0: \x0a /\nabc/firstline xyz\nabc 0: \x0aabc /\x{0a}abc/firstline,newline=crlf \= Expect no match xyz\r\nabc No match /[abc]/firstline \= Expect no match \na No match /foobar/ the foobar thing\=copy_matched_subject 0: foobar the foobar thing\=copy_matched_subject,zero_terminate 0: foobar /foobar/g the foobar thing foobar again\=copy_matched_subject 0: foobar 0: foobar /(?(VERSION>=0)^B0W)/ B0W-W0W 0: B0W \= Expect no match 0 No match /(?(VERSION>=1000)^B0W|W0W)/ B0W-W0W 0: W0W \= Expect no match 0 No match /(?<=pqr)abc(?=xyz)/ 123pqrabcxy\=ps,allusedtext Partial match: pqrabcxy <<< 123pqrabcxyz\=ps,allusedtext 0: pqrabcxyz <<< >>> /(?>a+b)/ aaaa\=ps Partial match: aaaa aaaab\=ps 0: aaaab /(abc)(?1)/ abca\=ps Partial match: abca abcabc\=ps 0: abcabc /(?(?=abc).*|Z)/ ab\=ps Partial match: ab abcxyz\=ps 0: abcxyz /(abc)++x/ abcab\=ps Partial match: abcab abc\=ps Partial match: abc ab\=ps Partial match: ab abcx 0: abcx # End of testinput6