/abc/ abc 0: abc /ab*c/ abc 0: abc abbbbc 0: abbbbc ac 0: ac /ab+c/ abc 0: abc abbbbbbc 0: abbbbbbc *** Failers No match ac No match ab No match /a*/ a 0: a 1: aaaaaaaaaaaaaaaaa 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 15: aa 16: a 17: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa Matched, but too many subsidiary matches 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaa 2: aaaaaaaaaaaaaaaaaaaaaaaaaaaa 3: aaaaaaaaaaaaaaaaaaaaaaaaaaa 4: aaaaaaaaaaaaaaaaaaaaaaaaaa 5: aaaaaaaaaaaaaaaaaaaaaaaaa 6: aaaaaaaaaaaaaaaaaaaaaaaa 7: aaaaaaaaaaaaaaaaaaaaaaa 8: aaaaaaaaaaaaaaaaaaaaaa 9: aaaaaaaaaaaaaaaaaaaaa 10: aaaaaaaaaaaaaaaaaaaa 11: aaaaaaaaaaaaaaaaaaa 12: aaaaaaaaaaaaaaaaaa 13: aaaaaaaaaaaaaaaaa 14: aaaaaaaaaaaaaaaa 15: aaaaaaaaaaaaaaa 16: aaaaaaaaaaaaaa 17: aaaaaaaaaaaaa 18: aaaaaaaaaaaa 19: aaaaaaaaaaa 20: aaaaaaaaaa 21: aaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\F 0: /(a|abcd|african)/ a 0: a abcd 0: abcd 1: a african 0: african 1: a /^abc/ abcdef 0: abc *** Failers No match xyzabc No match xyz\nabc No match /^abc/m abcdef 0: abc xyz\nabc 0: abc *** Failers No match xyzabc No match /\Aabc/ abcdef 0: abc *** Failers No match xyzabc No match xyz\nabc No match /\Aabc/m abcdef 0: abc *** Failers No match xyzabc No match xyz\nabc No match /\Gabc/ abcdef 0: abc xyzabc\>3 0: abc *** Failers No match xyzabc No match xyzabc\>2 No match /x\dy\Dz/ x9yzz 0: x9yzz x0y+z 0: x0y+z *** Failers No match xyz No match xxy0z No match /x\sy\Sz/ x yzz 0: x yzz x y+z 0: x y+z *** Failers No match xyz No match xxyyz No match /x\wy\Wz/ xxy+z 0: xxy+z *** Failers No match xxy0z No match x+y+z No match /x.y/ x+y 0: x+y x-y 0: x-y *** Failers 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 *** Failers 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 *** Failers No match ba0\n No match ba0\ncd No match /a\d\z/m ba0 0: a0 *** Failers No match ba0\n No match ba0\ncd No match /a\d\Z/ ba0 0: a0 ba0\n 0: a0 *** Failers No match ba0\ncd No match /a\d\Z/m ba0 0: a0 ba0\n 0: a0 *** Failers No match ba0\ncd No match /a\d$/ ba0 0: a0 ba0\n 0: a0 *** Failers No match ba0\ncd No match /a\d$/m ba0 0: a0 ba0\n 0: a0 ba0\ncd 0: a0 *** Failers No match /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 *** Failers No match ax No match axx No match /x{3}yz/ axxxyzq 0: xxxyz axxxxyzq 0: xxxyz *** Failers 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 *** Failers No match ax No match axx No match ayzq No match axyzq No match /[^a]+/ bac 0: b bcdefax 0: bcdef 1: bcde 2: bcd 3: bc 4: b *** Failers 0: *** F 1: *** 2: *** 3: ** 4: * aaaaa No match /[^a]*/ bac 0: b 1: bcdefax 0: bcdef 1: bcde 2: bcd 3: bc 4: b 5: *** Failers 0: *** F 1: *** 2: *** 3: ** 4: * 5: aaaaa 0: /[^a]{3,5}/ xyz 0: xyz awxyza 0: wxyz 1: wxy abcdefa 0: bcdef 1: bcde 2: bcd abcdefghijk 0: bcdef 1: bcde 2: bcd *** Failers 0: *** F 1: *** 2: *** axya No match axa No match aaaaa No match /\d*/ 1234b567 0: 1234 1: 123 2: 12 3: 1 4: xyz 0: /\D*/ a1234b567 0: a 1: xyz 0: xyz 1: xy 2: x 3: /\d+/ ab1234c56 0: 1234 1: 123 2: 12 3: 1 *** Failers No match xyz No match /\D+/ ab123c56 0: ab 1: a *** Failers 0: *** Failers 1: *** Failer 2: *** Faile 3: *** Fail 4: *** Fai 5: *** Fa 6: *** F 7: *** 8: *** 9: ** 10: * 789 No match /\d?A/ 045ABC 0: 5A ABC 0: A *** Failers No match XYZ No match /\D?A/ ABC 0: A BAC 0: BA 9ABC 0: A *** Failers No match /a+/ aaaa 0: aaaa 1: aaa 2: aa 3: a /^.*xyz/ xyz 0: xyz ggggggggxyz 0: ggggggggxyz /^.+xyz/ abcdxyz 0: abcdxyz axyz 0: axyz *** Failers No match xyz No match /^.?xyz/ xyz 0: xyz cxyz 0: cxyz /^\d{2,3}X/ 12X 0: 12X 123X 0: 123X *** Failers 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 *** Failers 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 *** Failers 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 *** Failers 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 *** Failers No match abcd1234 No match e45 No match /^[abcd]{2,3}\d/ ab45 0: ab4 bcd93 0: bcd9 *** Failers 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 *** Failers No match /^(abc)+\d/ abc45 0: abc4 abcabcabc45 0: abcabcabc4 *** Failers No match 42xyz No match /^(abc)?\d/ abc45 0: abc4 42xyz 0: 4 *** Failers No match abcabcabc45 No match /^(abc){2,3}\d/ abcabc45 0: abcabc4 abcabcabc45 0: abcabcabc4 *** Failers 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 /^([^()]|\((?1)*\))*$/ abc 0: abc a(b)c 0: a(b)c a(b(c))d 0: a(b(c))d *** Failers) 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 *** Failers No match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /< (?: (?(R) \d++ | [^<>]*+) | (?R)) * >/x <> 0: <> 0: hij> 0: hij> hij> 0: def> 0: def> 0: <> *** Failers No match abcxyz 1 ^ ^ x 0: abcxyz 123abcxyz999 --->123abcxyz999 1 ^ ^ x 0: abcxyz /(ab|cd){3,4}/C ababab --->ababab +0 ^ (ab|cd){3,4} +1 ^ a +4 ^ c +2 ^^ b +3 ^ ^ | +1 ^ ^ a +4 ^ ^ c +2 ^ ^ b +3 ^ ^ | +1 ^ ^ a +4 ^ ^ c +2 ^ ^ b +3 ^ ^ | +12 ^ ^ +1 ^ ^ a +4 ^ ^ c 0: ababab abcdabcd --->abcdabcd +0 ^ (ab|cd){3,4} +1 ^ a +4 ^ c +2 ^^ b +3 ^ ^ | +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ) +1 ^ ^ a +4 ^ ^ c +2 ^ ^ b +3 ^ ^ | +12 ^ ^ +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ) +12 ^ ^ 0: abcdabcd 1: abcdab abcdcdcdcdcd --->abcdcdcdcdcd +0 ^ (ab|cd){3,4} +1 ^ a +4 ^ c +2 ^^ b +3 ^ ^ | +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ) +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ) +12 ^ ^ +1 ^ ^ a +4 ^ ^ c +5 ^ ^ d +6 ^ ^ ) +12 ^ ^ 0: abcdcdcd 1: abcdcd /^abc/ abcdef 0: abc *** Failers No match abcdef\B No match /^(a*|xyz)/ bcd 0: aaabcd 0: aaa 1: aa 2: a 3: xyz 0: xyz 1: xyz\N 0: xyz *** Failers 0: bcd\N No match /xyz$/ xyz 0: xyz xyz\n 0: xyz *** Failers No match xyz\Z No match xyz\n\Z No match /xyz$/m xyz 0: xyz xyz\n 0: xyz abcxyz\npqr 0: xyz abcxyz\npqr\Z 0: xyz xyz\n\Z 0: xyz *** Failers No match xyz\Z No match /\Gabc/ abcdef 0: abc defabcxyz\>3 0: abc *** Failers No match defabcxyz No match /^abcdef/ ab\P Partial match: ab abcde\P Partial match: abcde abcdef\P 0: abcdef *** Failers No match abx\P No match /^a{2,4}\d+z/ a\P Partial match: a aa\P Partial match: aa aa2\P Partial match: aa2 aaa\P Partial match: aaa aaa23\P Partial match: aaa23 aaaa12345\P Partial match: aaaa12345 aa0z\P 0: aa0z aaaa4444444444444z\P 0: aaaa4444444444444z *** Failers No match az\P No match aaaaa\P No match a56\P No match /^abcdef/ abc\P Partial match: abc def\R 0: def /(?<=foo)bar/ xyzfo\P No match foob\P\>2 Partial match: b foobar...\R\P\>4 0: ar xyzfo\P No match foobar\>2 0: bar *** Failers No match xyzfo\P No match obar\R No match /(ab*(cd|ef))+X/ adfadadaklhlkalkajhlkjahdfasdfasdfladsfjkj\P\Z No match lkjhlkjhlkjhlkjhabbbbbbcdaefabbbbbbbefa\P\B\Z Partial match: abbbbbbcdaefabbbbbbbefa cdabbbbbbbb\P\R\B\Z Partial match: cdabbbbbbbb efabbbbbbbbbbbbbbbb\P\R\B\Z Partial match: efabbbbbbbbbbbbbbbb bbbbbbbbbbbbcdXyasdfadf\P\R\B\Z 0: bbbbbbbbbbbbcdX /(a|b)/SF>testsavedregex Compiled regex written to testsavedregex Study data written to testsavedregex >>aaabxyzpqrrrabbxyyyypqAzz 0: aaabxyzpqrrrabbxyyyypqAzz >aaaabxyzpqrrrabbxyyyypqAzz 0: aaaabxyzpqrrrabbxyyyypqAzz >>>>abcxyzpqrrrabbxyyyypqAzz 0: abcxyzpqrrrabbxyyyypqAzz *** Failers 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 *** Failers 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 *** Failers 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 *** Failers 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 *** Failers No match bababbc No match babababc No match /^(ba|b*){1,2}?bc/ babc 0: babc bbabc 0: bbabc bababc 0: bababc *** Failers 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 *** Failers No match fthing No match [thing No match \\thing No match /^[]cde]/ ]thing 0: ] cthing 0: c dthing 0: d ething 0: e *** Failers No match athing No match fthing No match /^[^ab\]cde]/ fthing 0: f [thing 0: [ \\thing 0: \ *** Failers 0: * 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 *** Failers 0: * ]thing No match cthing No match dthing No match ething No match /^\/ 0: \x81 /^/ 0: \xff /^[0-9]+$/ 0 0: 0 1 0: 1 2 0: 2 3 0: 3 4 0: 4 5 0: 5 6 0: 6 7 0: 7 8 0: 8 9 0: 9 10 0: 10 100 0: 100 *** Failers No match abc No match /^.*nter/ enter 0: enter inter 0: inter uponter 0: uponter /^xxx[0-9]+$/ xxx0 0: xxx0 xxx1234 0: xxx1234 *** Failers No match xxx No match /^.+[0-9][0-9][0-9]$/ x123 0: x123 xx123 0: xx123 123456 0: 123456 *** Failers No match 123 No match x1234 0: x1234 /^.+?[0-9][0-9][0-9]$/ x123 0: x123 xx123 0: xx123 123456 0: 123456 *** Failers No match 123 No match x1234 0: x1234 /^([^!]+)!(.+)=apquxz\.ixr\.zzz\.ac\.uk$/ abc!pqr=apquxz.ixr.zzz.ac.uk 0: abc!pqr=apquxz.ixr.zzz.ac.uk *** Failers No match !pqr=apquxz.ixr.zzz.ac.uk No match abc!=apquxz.ixr.zzz.ac.uk No match abc!pqr=apquxz:ixr.zzz.ac.uk No match abc!pqr=apquxz.ixr.zzz.ac.ukk No match /:/ Well, we need a colon: somewhere 0: : *** Fail if we don't No match /([\da-f:]+)$/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 *** Failers 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 *** Failers 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*$/ 1 IN SOA non-sp1 non-sp2( 0: 1 IN SOA non-sp1 non-sp2( 1 IN SOA non-sp1 non-sp2 ( 0: 1 IN SOA non-sp1 non-sp2 ( *** Failers No match 1IN SOA non-sp1 non-sp2( No match /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/ 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-. *** Failers No match -abc.peq. No match /^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/ *.a 0: *.a *.b0-a 0: *.b0-a *.c3-b.c 0: *.c3-b.c *.c-a.b-c 0: *.c-a.b-c *** Failers No match *.0 No match *.a- No match *.a-b.c- No match *.c-a.0-c No match /^(?=ab(de))(abd)(e)/ abde 0: abde /^(?!(ab)de|x)(abd)(f)/ abdf 0: abdf /^(?=(ab(cd)))(ab)/ abcd 0: ab /^[\da-f](\.[\da-f])*$/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*(;.*)?$/ \"1234\" 0: "1234" \"abcd\" ; 0: "abcd" ; \"\" ; rhubarb 0: "" ; rhubarb *** Failers No match \"1234\" : things No match /^$/ \ 0: *** Failers No match / ^ a (?# begins with a) b\sc (?# then b c) $ (?# then end)/x ab c 0: ab c *** Failers 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 *** Failers No match abc No match ab cde No match /^ a\ b[c ]d $/x a bcd 0: a bcd a b d 0: a b d *** Failers No match abcd No match ab d No match /^(a(b(c)))(d(e(f)))(h(i(j)))(k(l(m)))$/ 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: .^$(*+)|{?,?} 1: .^$(*+)|{?,? 2: .^$(*+)|{?, 3: .^$(*+)|{? 4: .^$(*+)|{ 5: .^$(*+)| 6: .^$(*+) 7: .^$(*+ 8: .^$(* 9: .^$( 10: .^$ 11: .^ 12: . /^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__ *** Failers No match 1234567 No match /^[aeiou\d]{4,5}$/ uoie 0: uoie 1234 0: 1234 12345 0: 12345 aaaaa 0: aaaaa *** Failers 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 *** Failers 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? 1: foolish see 2: foolish se 3: foolish s 4: foolish 5: foolish 6: foolis 7: fooli 8: fool 9: foo /(?:(?!foo)...|^.{0,2})bar(.*)/ foobar crowbar etc 0: rowbar etc 1: rowbar et 2: rowbar e 3: rowbar 4: rowbar barrel 0: barrel 1: barre 2: barr 3: bar 2barrel 0: 2barrel 1: 2barre 2: 2barr 3: 2bar A barrel 0: A barrel 1: A barre 2: A barr 3: A bar /^(\D*)(?=\d)(?!123)/ abc456 0: abc *** Failers 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 *** Failers No match abc No match /(?=^)abc/ abc 0: abc *** Failers No match the abc No match /^[ab]{1,3}(ab*|b)/ aabbbbb 0: aabbbbb 1: aabbbb 2: aabbb 3: aabb 4: aab 5: aa /^[ab]{1,3}?(ab*|b)/ aabbbbb 0: aabbbbb 1: aabbbb 2: aabbb 3: aabb 4: aab 5: aa /^[ab]{1,3}?(ab*?|b)/ aabbbbb 0: aabbbbb 1: aabbbb 2: aabbb 3: aabb 4: aab 5: aa /^[ab]{1,3}(ab*?|b)/ 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 a\rb 0: a\x0db *** Failers No match a\nb No match /abc$/ abc 0: abc abc\n 0: abc *** Failers No match abc\ndef No match /(abc)\123/ abc\x53 0: abcS /(abc)\223/ abc\x93 0: abc\x93 /(abc)\323/ abc\xd3 0: abc\xd3 /(abc)\100/ abc\x40 0: abc@ abc\100 0: abc@ /(abc)\1000/ abc\x400 0: abc@0 abc\x40\x30 0: abc@0 abc\1000 0: abc@0 abc\100\x30 0: abc@0 abc\100\060 0: abc@0 abc\100\60 0: abc@0 /abc\81/ abc\081 0: abc\x0081 abc\0\x38\x31 0: abc\x0081 /abc\91/ abc\091 0: abc\x0091 abc\0\x39\x31 0: abc\x0091 /(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\12\123/ abcdefghijk\12S 0: abcdefghijk\x0aS /ab\idef/ abidef 0: abidef /a{0}bc/ bc 0: bc /(a|(bc)){0,0}?xyz/ xyz 0: xyz /abc[\10]de/ abc\010de 0: abc\x08de /abc[\1]de/ abc\1de 0: abc\x01de /(abc)[\1]de/ abc\1de 0: abc\x01de /(?s)a.b/ a\nb 0: a\x0ab /^([^a])([^\b])([^c]*)([^d]{3,4})/ baNOTccccd 0: baNOTcccc 1: baNOTccc 2: baNOTcc 3: baNOTc 4: baNOT baNOTcccd 0: baNOTccc 1: baNOTcc 2: baNOTc 3: baNOT baNOTccd 0: baNOTcc 1: baNOTc 2: baNOT bacccd 0: baccc *** Failers 0: *** Failers 1: *** Failer 2: *** Faile 3: *** Fail 4: *** Fai 5: *** Fa 6: *** F anything No match b\bc No match baccd No match /[^a]/ Abc 0: A /[^a]/i Abc 0: b /[^a]+/ AAAaAbc 0: AAA 1: AA 2: A /[^a]+/i AAAaAbc 0: bc 1: b /[^a]+/ bbb\nccc 0: bbb\x0accc 1: bbb\x0acc 2: bbb\x0ac 3: bbb\x0a 4: bbb 5: bb 6: b /[^k]$/ abc 0: c *** Failers 0: s abk No match /[^k]{2,3}$/ abc 0: abc kbc 0: bc kabc 0: abc *** Failers 0: ers abk No match akb No match akk No match /^\d{8,}\@.+[^k]$/ 12345678\@a.b.c.d 0: 12345678@a.b.c.d 123456789\@x.y.z 0: 123456789@x.y.z *** Failers No match 12345678\@x.y.uk No match 1234567\@a.b.c.d No match /[^a]/ aaaabcd 0: b aaAabcd 0: A /[^a]/i aaaabcd 0: b aaAabcd 0: b /[^az]/ aaaabcd 0: b aaAabcd 0: A /[^az]/i aaaabcd 0: b aaAabcd 0: b /\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377/ \000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377 0: \x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff /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: .23000393 2: .2300039 3: .230003 4: .23000 5: .2300 6: .230 1.875000282 0: .875000282 1: .87500028 2: .8750002 3: .875000 4: .87500 5: .8750 6: .875 1.235 0: .235 /(\.\d\d((?=0)|\d(?=\d)))/ 1.230003938 0: .230 1: .23 1.875000282 0: .875 *** Failers 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 1: foo tabl 2: foo tab 3: foo ta 4: foo t /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*)/ I have 2 numbers: 53147 Matched, but too many subsidiary 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 15: I have 2 16: I have 17: I have 18: I hav 19: I ha 20: I h 21: I /(.*)(\d+)/ I have 2 numbers: 53147 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 /(.*?)(\d*)/ I have 2 numbers: 53147 Matched, but too many subsidiary 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 15: I have 2 16: I have 17: I have 18: I hav 19: I ha 20: I h 21: I /(.*?)(\d+)/ I have 2 numbers: 53147 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 /(.*)(\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 *** Failers No match ABC123 No match /^[W-]46]/ W46]789 0: W46] -46]789 0: -46] *** Failers 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: \ *** Failers 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 word cat dog elephant mussel cow horse canary baboon snake shark No match /word (?:[a-zA-Z0-9]+ ){0,300}otherword/ 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}/ bcd No match abc 0: a aab 0: a /^(a){1,2}/ bcd No match abc 0: a aab 0: aa 1: a /^(a){1,3}/ bcd No match abc 0: a aab 0: aa 1: a aaa 0: aaa 1: aa 2: a /^(a){1,}/ bcd No match 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 /.*\.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 *** Failers 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 *** Failers 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 *** Failers No match abcde\nBar No match /(?s:.*X|^B)/ abcde\n1234Xyz 0: abcde\x0a1234X BarFoo 0: B *** Failers No match abcde\nBar No match /^.*B/ **** Failers 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 *** Failers No match z No match /abcde{0,0}/ abcd 0: abcd *** Failers No match abce No match /ab[cd]{0,0}e/ abe 0: abe *** Failers No match abcde No match /ab(c){0,0}d/ abd 0: abd *** Failers No match abcd No match /a(b*)/ a 0: a ab 0: ab 1: a abbbb 0: abbbb 1: abbb 2: abb 3: ab 4: a *** Failers 0: a bbbbb No match /ab\d{0}e/ abe 0: abe *** Failers No match ab1e No match /"([^\\"]+|\\.)*"/ the \"quick\" brown fox 0: "quick" \"the \\\"quick\\\" brown fox\" 0: "the \"quick\" brown fox" /.*?/g+ abc 0: abc 0+ 1: ab 2: a 3: 0: 0+ /\b/g+ abc 0: 0+ abc 0: 0+ /\b/+g 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 *** Failers 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 x\nb\n No match a\bx\n 0: x /\x0{ab}/ \0{ab} 0: \x00{ab} /(A|B)*?CD/ CD 0: CD /(A|B)*CD/ CD 0: CD /(?.*/)foo" /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: .23000393 2: .2300039 3: .230003 4: .23000 5: .2300 6: .230 1.875000282 0: .875000282 1: .87500028 2: .8750002 3: .875000 4: .87500 5: .8750 *** Failers 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 *** Failers 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 *** Failers 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) *** Failers No match ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /a(?-i)b/i ab 0: ab Ab 0: Ab *** Failers No match aB No match AB No match /(a (?x)b c)d e/ a bcd e 0: a bcd e *** Failers 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 *** Failers No match abcdef No match /(a(?i)b)c/ abc 0: abc aBc 0: aBc *** Failers 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 *** Failers No match ABC No match abC No match aBC No match /a(?i:b)*c/ aBc 0: aBc aBBc 0: aBBc *** Failers No match aBC No match aBBC No match /a(?=b(?i)c)\w\wd/ abcd 0: abcd abCd 0: abCd *** Failers 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 *** Failers 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 *** Failers 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 *** Failers No match Abc No match abAb No match abbC No match /(?=a(?i)b)\w\wc/ abc 0: abc aBc 0: aBc *** Failers No match Ab No match abC No match aBC No match /(?<=a(?i)b)(\w\w)c/ abxxc 0: xxc aBxxc 0: xxc *** Failers No match Abxxc No match ABxxc No match abxxC No match /^(?(?=abc)\w{3}:|\d\d)$/ abc: 0: abc: 12 0: 12 *** Failers No match 123 No match xyz No match /^(?(?!abc)\d\d|\w{3}:)$/ abc: 0: abc: 12 0: 12 *** Failers No match 123 No match xyz No match /(?(?<=foo)bar|cat)/ foobar 0: bar cat 0: cat fcat 0: cat focat 0: cat *** Failers 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 *** Failers 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 *** Failers 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 *** Failers 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 *** Failers No match aCD No match XY No match /(?<=foo\n)^bar/m foo\nbar 0: bar *** Failers 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 *** Failers No match cb No match b No match /(?a+)ab/ /(?>a+)b/ aaab 0: aaab /([[:]+)/ a:[b]: 0: :[ 1: : /([[=]+)/ a=[b]= 0: =[ 1: = /([[.]+)/ a.[b]. 0: .[ 1: . /((?>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/ *** Failers 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 *** Failers No match /(?>.*)(?<=(abcd|wxyz))/ alphabetabcd 0: alphabetabcd endingwxyz 0: endingwxyz *** Failers 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 word cat dog elephant mussel cow horse canary baboon snake shark No match /word (?>[a-zA-Z0-9]+ ){0,30}otherword/ 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 *** Failers No match 123abcfoo No match /(?<=(?!...999)\d{3})foo/ 999foo 0: foo 123999foo 0: foo *** Failers No match 123abcfoo No match /(?<=\d{3}(?!999)...)foo/ 123abcfoo 0: foo 123456foo 0: foo *** Failers No match 123999foo No match /(?<=\d{3}...)(?Z)+|A)*/ ZABCDEFG 0: ZA 1: Z 2: /((?>)+|A)*/ ZABCDEFG 0: /a*/g abbab 0: a 1: 0: 0: 0: a 1: 0: 0: /^[a-\d]/ abcde 0: a -things 0: - 0digit 0: 0 *** Failers No match bcdef No match /^[\d-a]/ abcde 0: a -things 0: - 0digit 0: 0 *** Failers No match bcdef No match /[[:space:]]+/ > \x09\x0a\x0c\x0d\x0b< 0: \x09\x0a\x0c\x0d\x0b 1: \x09\x0a\x0c\x0d 2: \x09\x0a\x0c 3: \x09\x0a 4: \x09 5: /[[:blank:]]+/ > \x09\x0a\x0c\x0d\x0b< 0: \x09 1: /[\s]+/ > \x09\x0a\x0c\x0d\x0b< 0: \x09\x0a\x0c\x0d 1: \x09\x0a\x0c 2: \x09\x0a 3: \x09 4: /\s+/ > \x09\x0a\x0c\x0d\x0b< 0: \x09\x0a\x0c\x0d 1: \x09\x0a\x0c 2: \x09\x0a 3: \x09 4: /a b/x ab No match /(?!\A)x/m a\nxb\n 0: x /(?!^)x/m 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 *** Failers 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$xyz /\Gabc/ abc 0: abc *** Failers No match xyzabc No match /\Gabc./g abc1abc2xyzabc3 0: abc1 0: abc2 /abc./g abc1abc2xyzabc3 0: abc1 0: abc2 0: abc3 /a(?x: b c )d/ XabcdY 0: abcd *** Failers No match Xa b c d Y No match /((?x)x y z | a b c)/ XabcY 0: abc AxyzB 0: xyz /(?i)AB(?-i)C/ XabCY 0: abC *** Failers No match XabcY No match /((?i)AB(?-i)C|D)E/ abCE 0: abCE DE 0: DE *** Failers No match abcE No match abCe No match dE No match De No match /[z\Qa-d]\E]/ z 0: z a 0: a - 0: - d 0: d ] 0: ] *** Failers 0: a b No match /[\z\C]/ z 0: z C 0: C /\M/ M 0: M /(a+)*b/ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match /(?i)reg(?:ul(?:[a]|ae)r|ex)/ REGular 0: REGular regulaer 0: regulaer Regex 0: Regex regulr 0: regul\xe4r /[--]+/ 0: \xc5\xe6\xe5\xe4\xe0 0: \xc5\xe6\xe5\xe4\xff 0: \xc5\xe6\xe5\xe4\xc0 0: \xc5\xe6\xe5\xe4\xdf /(?<=Z)X./ \x84XAZXB 0: XB /^(?(2)a|(1)(2))+$/ 123a Error -17 /(?<=a|bbbb)c/ ac 0: c bbbbc 0: c /abc/>testsavedregex Compiled regex written to testsavedregex testsavedregex Compiled regex written to testsavedregex testsavedregex Compiled regex written to testsavedregex Study data written to testsavedregex testsavedregex Compiled regex written to testsavedregex Study data written to testsavedregex 0: abc xyz\r\nabc\ 0: abc xyz\rabc\ 0: abc xyz\r\nabc\ 0: abc ** Failers No match xyz\nabc\ No match xyz\r\nabc\ No match xyz\nabc\ No match xyz\rabc\ No match xyz\rabc\ No match /abc$/m xyzabc 0: abc xyzabc\n 0: abc xyzabc\npqr 0: abc xyzabc\r\ 0: abc xyzabc\rpqr\ 0: abc xyzabc\r\n\ 0: abc xyzabc\r\npqr\ 0: abc ** Failers No match xyzabc\r No match xyzabc\rpqr No match xyzabc\r\n No match xyzabc\r\npqr No match /^abc/m xyz\rabcdef 0: abc xyz\nabcdef\ 0: abc ** Failers No match xyz\nabcdef No match /^abc/m xyz\nabcdef 0: abc xyz\rabcdef\ 0: abc ** Failers No match xyz\rabcdef No match /^abc/m xyz\r\nabcdef 0: abc xyz\rabcdef\ 0: abc ** Failers No match xyz\rabcdef No match /.*/ abc\ndef 0: abc 1: ab 2: a 3: abc\rdef 0: abc\x0ddef 1: abc\x0dde 2: abc\x0dd 3: abc\x0d 4: abc 5: ab 6: a 7: abc\r\ndef 0: abc\x0d 1: abc 2: ab 3: a 4: \abc\ndef 0: abc\x0adef 1: abc\x0ade 2: abc\x0ad 3: abc\x0a 4: abc 5: ab 6: a 7: \abc\rdef 0: abc 1: ab 2: a 3: \abc\r\ndef 0: abc 1: ab 2: a 3: \abc\ndef 0: abc\x0adef 1: abc\x0ade 2: abc\x0ad 3: abc\x0a 4: abc 5: ab 6: a 7: \abc\rdef 0: abc\x0ddef 1: abc\x0dde 2: abc\x0dd 3: abc\x0d 4: abc 5: ab 6: a 7: \abc\r\ndef 0: abc 1: ab 2: a 3: /\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/ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 /(?>a|)*\d/ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 /(?:a|)*\d/ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa No match aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 /^a.b/ a\rb 0: a\x0db a\nb\ 0: a\x0ab ** Failers No match a\nb No match a\nb\ No match a\rb\ No match a\rb\ No match /^abc./mgx abc1 \x0aabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\x0aabc6 \x85abc7 \x{2028}abc8 \x{2029}abc9 JUNK 0: abc1 0: abc2 0: abc3 0: abc4 0: abc5 0: abc6 0: abc7 /abc.$/mgx abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc7\x{2028} abc8\x{2029} abc9 0: abc1 0: abc2 0: abc3 0: abc4 0: abc5 0: abc6 0: abc9 /^a\Rb/ 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/ 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/ 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/ 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/ aRb 0: aRb ** Failers No match a\nb No match /.+foo/ afoo 0: afoo ** Failers No match \r\nfoo No match \nfoo No match /.+foo/ afoo 0: afoo \nfoo 0: \x0afoo ** Failers No match \r\nfoo No match /.+foo/ 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 /^$/mg abc\r\rxyz 0: abc\n\rxyz 0: ** Failers No match abc\r\nxyz No match /^X/m XABC 0: X ** Failers No match XABC\B No match /(?m)^$/g+ abc\r\n\r\n 0: 0+ \x0d\x0a /(?m)^$|^\r\n/g+ abc\r\n\r\n 0: \x0d\x0a 0+ 1: /(?m)$/g+ 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 ** Failers No match xyzxyz No match /\H\h\V\v/ X X\x0a 0: X X\x0a X\x09X\x0b 0: X\x09X\x0b ** Failers 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 1: \x09 \xa0X\x0a\x0b\x0c \x09\x20\xa0\x0a\x0b\x0c\x0d\x0a 0: \x09 \xa0\x0a\x0b\x0c\x0d 1: \x09 \xa0\x0a\x0b\x0c \x09\x20\xa0\x0a\x0b\x0c 0: \x09 \xa0\x0a\x0b\x0c ** Failers No match \x09\x20\xa0\x0a\x0b No match /\H{3,4}/ XY ABCDE 0: ABCD 1: ABC 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 ** Failers 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/ \r\nA No match /\nA/ \r\nA 0: \x0aA /[\r\n]A/ \r\nA 0: \x0aA /(\r|\n)A/ \r\nA 0: \x0aA /a\Rb/I 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 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\ No match a\x0bb\ No match /a\R?b/I 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 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\ No match a\x0bb\ No match /a\R{2,4}b/I Capturing subpattern count = 0 Partial matching not supported 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 Capturing subpattern count = 0 Partial matching not supported 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\ No match a\x0b\0bb\ No match / End of testinput7 /