diff options
Diffstat (limited to 'testdata/testoutput1')
| -rw-r--r-- | testdata/testoutput1 | 9316 |
1 files changed, 9316 insertions, 0 deletions
diff --git a/testdata/testoutput1 b/testdata/testoutput1 new file mode 100644 index 0000000..4dafc04 --- /dev/null +++ b/testdata/testoutput1 @@ -0,0 +1,9316 @@ +/-- This set of tests is for features that are compatible with all versions of + Perl >= 5.10, in non-UTF-8 mode. It should run clean for the 8-bit, 16-bit, + and 32-bit PCRE libraries. --/ + +< forbid 89?=ABCDEFfGILMNPTUWXZ< + +/the quick brown fox/ + the quick brown fox + 0: the quick brown fox + The quick brown FOX +No match + What do you know about the quick brown fox? + 0: the quick brown fox + 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 + *** 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 + 1: abc + abcabczz + 0: abcabczz + 1: abc + *** Failers +No match + zz +No match + abcabcabczz +No match + >>abczz +No match + +/^(b+?|a){1,2}?c/ + bc + 0: bc + 1: b + bbc + 0: bbc + 1: b + bbbc + 0: bbbc + 1: bb + bac + 0: bac + 1: a + bbac + 0: bbac + 1: a + aac + 0: aac + 1: a + abbbbbbbbbbbc + 0: abbbbbbbbbbbc + 1: bbbbbbbbbbb + bbbbbbbbbbbac + 0: bbbbbbbbbbbac + 1: a + *** Failers +No match + aaac +No match + abbbbbbbbbbbac +No match + +/^(b+|a){1,2}c/ + bc + 0: bc + 1: b + bbc + 0: bbc + 1: bb + bbbc + 0: bbbc + 1: bbb + bac + 0: bac + 1: a + bbac + 0: bbac + 1: a + aac + 0: aac + 1: a + abbbbbbbbbbbc + 0: abbbbbbbbbbbc + 1: bbbbbbbbbbb + bbbbbbbbbbbac + 0: bbbbbbbbbbbac + 1: a + *** Failers +No match + aaac +No match + abbbbbbbbbbbac +No match + +/^(b+|a){1,2}?bc/ + bbc + 0: bbc + 1: b + +/^(b*|ba){1,2}?bc/ + babc + 0: babc + 1: ba + bbabc + 0: bbabc + 1: ba + bababc + 0: bababc + 1: ba + *** Failers +No match + bababbc +No match + babababc +No match + +/^(ba|b*){1,2}?bc/ + babc + 0: babc + 1: ba + bbabc + 0: bbabc + 1: ba + bababc + 0: bababc + 1: ba + *** 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$/ + abc!pqr=apquxz.ixr.zzz.ac.uk + 0: abc!pqr=apquxz.ixr.zzz.ac.uk + 1: abc + 2: pqr + *** Failers +No match + !pqr=apquxz.ixr.zzz.ac.uk +No match + abc!=apquxz.ixr.zzz.ac.uk +No match + abc!pqr=apquxz:ixr.zzz.ac.uk +No match + abc!pqr=apquxz.ixr.zzz.ac.ukk +No match + +/:/ + Well, we need a colon: somewhere + 0: : + *** Fail if we don't +No match + +/([\da-f:]+)$/i + 0abc + 0: 0abc + 1: 0abc + abc + 0: abc + 1: abc + fed + 0: fed + 1: fed + E + 0: E + 1: E + :: + 0: :: + 1: :: + 5f03:12C0::932e + 0: 5f03:12C0::932e + 1: 5f03:12C0::932e + fed def + 0: def + 1: def + Any old stuff + 0: ff + 1: 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 + 1: 1 + 2: 2 + 3: 3 + A.12.123.0 + 0: A.12.123.0 + 1: 12 + 2: 123 + 3: 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*$/ + 1 IN SOA non-sp1 non-sp2( + 0: 1 IN SOA non-sp1 non-sp2( + 1: 1 + 2: non-sp1 + 3: non-sp2 + 1 IN SOA non-sp1 non-sp2 ( + 0: 1 IN SOA non-sp1 non-sp2 ( + 1: 1 + 2: non-sp1 + 3: non-sp2 + *** Failers +No match + 1IN SOA non-sp1 non-sp2( +No match + +/^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/ + a. + 0: a. + Z. + 0: Z. + 2. + 0: 2. + ab-c.pq-r. + 0: ab-c.pq-r. + 1: .pq-r + sxk.zzz.ac.uk. + 0: sxk.zzz.ac.uk. + 1: .uk + x-.y-. + 0: x-.y-. + 1: .y- + *** Failers +No match + -abc.peq. +No match + +/^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/ + *.a + 0: *.a + *.b0-a + 0: *.b0-a + 1: 0-a + *.c3-b.c + 0: *.c3-b.c + 1: 3-b + 2: .c + *.c-a.b-c + 0: *.c-a.b-c + 1: -a + 2: .b-c + 3: -c + *** Failers +No match + *.0 +No match + *.a- +No match + *.a-b.c- +No match + *.c-a.0-c +No match + +/^(?=ab(de))(abd)(e)/ + abde + 0: abde + 1: de + 2: abd + 3: e + +/^(?!(ab)de|x)(abd)(f)/ + abdf + 0: abdf + 1: <unset> + 2: abd + 3: f + +/^(?=(ab(cd)))(ab)/ + abcd + 0: ab + 1: abcd + 2: cd + 3: ab + +/^[\da-f](\.[\da-f])*$/i + a.b.c.d + 0: a.b.c.d + 1: .d + A.B.C.D + 0: A.B.C.D + 1: .D + a.b.c.1.2.3.C + 0: a.b.c.1.2.3.C + 1: .C + +/^\".*\"\s*(;.*)?$/ + \"1234\" + 0: "1234" + \"abcd\" ; + 0: "abcd" ; + 1: ; + \"\" ; rhubarb + 0: "" ; rhubarb + 1: ; rhubarb + *** Failers +No match + \"1234\" : things +No match + +/^$/ + \ + 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 + 1: abc + 2: bc + 3: c + 4: def + 5: ef + 6: f + 7: hij + 8: ij + 9: j +10: klm +11: lm +12: m + +/^(?:a(b(c)))(?:d(e(f)))(?:h(i(j)))(?:k(l(m)))$/ + abcdefhijklm + 0: abcdefhijklm + 1: bc + 2: c + 3: ef + 4: f + 5: ij + 6: j + 7: lm + 8: m + +/^[\w][\W][\s][\S][\d][\D][\b][\n][\c]][\022]/ + a+ Z0+\x08\n\x1d\x12 + 0: a+ Z0+\x08\x0a\x1d\x12 + +/^[.^$|()*+?{,}]+/ + .^\$(*+)|{?,?} + 0: .^$(*+)|{?,?} + +/^a*\w/ + z + 0: z + az + 0: az + aaaz + 0: aaaz + a + 0: a + aa + 0: aa + aaaa + 0: aaaa + a+ + 0: a + aa+ + 0: aa + +/^a*?\w/ + z + 0: z + az + 0: a + aaaz + 0: a + a + 0: a + aa + 0: a + aaaa + 0: a + a+ + 0: a + aa+ + 0: a + +/^a+\w/ + az + 0: az + aaaz + 0: aaaz + aa + 0: aa + aaaa + 0: aaaa + aa+ + 0: aa + +/^a+?\w/ + az + 0: az + aaaz + 0: aa + aa + 0: aa + aaaa + 0: aa + aa+ + 0: aa + +/^\d{8}\w{2,}/ + 1234567890 + 0: 1234567890 + 12345678ab + 0: 12345678ab + 12345678__ + 0: 12345678__ + *** Failers +No match + 1234567 +No match + +/^[aeiou\d]{4,5}$/ + 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: 1234 + aaaaa + 0: aaaa + 123456 + 0: 1234 + +/\A(abc|def)=(\1){2,3}\Z/ + abc=abcabc + 0: abc=abcabc + 1: abc + 2: abc + def=defdefdef + 0: def=defdefdef + 1: def + 2: def + *** Failers +No match + abc=defdef +No match + +/^(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\11*(\3\4)\1(?#)2$/ + abcdefghijkcda2 + 0: abcdefghijkcda2 + 1: a + 2: b + 3: c + 4: d + 5: e + 6: f + 7: g + 8: h + 9: i +10: j +11: k +12: cd + abcdefghijkkkkcda2 + 0: abcdefghijkkkkcda2 + 1: a + 2: b + 3: c + 4: d + 5: e + 6: f + 7: g + 8: h + 9: i +10: j +11: k +12: cd + +/(cat(a(ract|tonic)|erpillar)) \1()2(3)/ + cataract cataract23 + 0: cataract cataract23 + 1: cataract + 2: aract + 3: ract + 4: + 5: 3 + catatonic catatonic23 + 0: catatonic catatonic23 + 1: catatonic + 2: atonic + 3: tonic + 4: + 5: 3 + caterpillar caterpillar23 + 0: caterpillar caterpillar23 + 1: caterpillar + 2: erpillar + 3: <unset> + 4: + 5: 3 + + +/^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 + 1: abcd + +/^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 + 1: Sep + From abcd Mon Sep 1 12:33:02 1997 + 0: From abcd Mon Sep 1 12:33 + 1: Sep + *** 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: lish see? + +/(?:(?!foo)...|^.{0,2})bar(.*)/ + foobar crowbar etc + 0: rowbar etc + 1: etc + barrel + 0: barrel + 1: rel + 2barrel + 0: 2barrel + 1: rel + A barrel + 0: A barrel + 1: rel + +/^(\D*)(?=\d)(?!123)/ + abc456 + 0: abc + 1: 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 + +/^(a)\1{2,3}(.)/ + aaab + 0: aaab + 1: a + 2: b + aaaab + 0: aaaab + 1: a + 2: b + aaaaab + 0: aaaaa + 1: a + 2: a + aaaaaab + 0: aaaaa + 1: a + 2: a + +/(?!^)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: aabb + 1: b + +/^[ab]{1,3}?(ab*|b)/ + aabbbbb + 0: aabbbbb + 1: abbbbb + +/^[ab]{1,3}?(ab*?|b)/ + aabbbbb + 0: aa + 1: a + +/^[ab]{1,3}(ab*?|b)/ + aabbbbb + 0: aabb + 1: b + +/ (?: [\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 <user\@dom.ain> + 0: Alan Other <user@dom.ain> + <user\@dom.ain> + 0: user@dom.ain + user\@dom.ain + 0: user@dom.ain + \"A. Other\" <user.1234\@dom.ain> (a comment) + 0: "A. Other" <user.1234@dom.ain> (a comment) + A. Other <user.1234\@dom.ain> (a comment) + 0: Other <user.1234@dom.ain> (a comment) + \"/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 + A missing angle <user\@some.where + 0: user@some.where + *** Failers +No match + The quick brown fox +No match + +/[\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 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 +# 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 <user\@dom.ain> + 0: Alan Other <user@dom.ain> + <user\@dom.ain> + 0: user@dom.ain + user\@dom.ain + 0: user@dom.ain + \"A. Other\" <user.1234\@dom.ain> (a comment) + 0: "A. Other" <user.1234@dom.ain> + A. Other <user.1234\@dom.ain> (a comment) + 0: Other <user.1234@dom.ain> + \"/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 + A missing angle <user\@some.where + 0: user@some.where + *** Failers +No match + The quick brown fox +No match + +/abc\0def\00pqr\000xyz\0000AB/ + abc\0def\00pqr\000xyz\0000AB + 0: abc\x00def\x00pqr\x00xyz\x000AB + abc456 abc\0def\00pqr\000xyz\0000ABCDE + 0: abc\x00def\x00pqr\x00xyz\x000AB + +/abc\x0def\x00pqr\x000xyz\x0000AB/ + abc\x0def\x00pqr\x000xyz\x0000AB + 0: abc\x0def\x00pqr\x000xyz\x0000AB + abc456 abc\x0def\x00pqr\x000xyz\x0000ABCDE + 0: abc\x0def\x00pqr\x000xyz\x0000AB + +/^[\000-\037]/ + \0A + 0: \x00 + \01B + 0: \x01 + \037C + 0: \x1f + +/\0*/ + \0\0\0\0 + 0: \x00\x00\x00\x00 + +/A\x0{2,3}Z/ + The A\x0\x0Z + 0: A\x00\x00Z + An A\0\x0\0Z + 0: A\x00\x00\x00Z + *** Failers +No match + A\0Z +No match + A\0\x0\0\x0Z +No match + +/^(cow|)\1(bell)/ + cowcowbell + 0: cowcowbell + 1: cow + 2: bell + bell + 0: bell + 1: + 2: bell + *** Failers +No match + cowbell +No match + +/^\s/ + \040abc + 0: + \x0cabc + 0: \x0c + \nabc + 0: \x0a + \rabc + 0: \x0d + \tabc + 0: \x09 + *** Failers +No match + abc +No match + +/^a b + c/x + abc + 0: abc + +/^(a|)\1*b/ + ab + 0: ab + 1: a + aaaab + 0: aaaab + 1: a + b + 0: b + 1: + *** Failers +No match + acb +No match + +/^(a|)\1+b/ + aab + 0: aab + 1: a + aaaab + 0: aaaab + 1: a + b + 0: b + 1: + *** Failers +No match + ab +No match + +/^(a|)\1?b/ + ab + 0: ab + 1: a + aab + 0: aab + 1: a + b + 0: b + 1: + *** Failers +No match + acb +No match + +/^(a|)\1{2}b/ + aaab + 0: aaab + 1: a + b + 0: b + 1: + *** Failers +No match + ab +No match + aab +No match + aaaab +No match + +/^(a|)\1{2,3}b/ + aaab + 0: aaab + 1: a + aaaab + 0: aaaab + 1: a + b + 0: b + 1: + *** Failers +No match + ab +No match + aab +No match + aaaaab +No match + +/ab{1,3}bc/ + abbbbc + 0: abbbbc + abbbc + 0: abbbc + abbc + 0: abbc + *** Failers +No match + abc +No match + abbbbbc +No match + +/([^.]*)\.([^:]*):[T ]+(.*)/ + track1.title:TBlah blah blah + 0: track1.title:TBlah blah blah + 1: track1 + 2: title + 3: Blah blah blah + +/([^.]*)\.([^:]*):[T ]+(.*)/i + track1.title:TBlah blah blah + 0: track1.title:TBlah blah blah + 1: track1 + 2: title + 3: Blah blah blah + +/([^.]*)\.([^:]*):[t ]+(.*)/i + track1.title:TBlah blah blah + 0: track1.title:TBlah blah blah + 1: track1 + 2: title + 3: Blah blah blah + +/^[W-c]+$/ + WXY_^abc + 0: WXY_^abc + *** Failers +No match + wxy +No match + +/^[W-c]+$/i + WXY_^abc + 0: WXY_^abc + wxy_^ABC + 0: wxy_^ABC + +/^[\x3f-\x5F]+$/i + WXY_^abc + 0: WXY_^abc + wxy_^ABC + 0: wxy_^ABC + +/^abc$/m + abc + 0: abc + qqq\nabc + 0: abc + abc\nzzz + 0: abc + qqq\nabc\nzzz + 0: abc + +/^abc$/ + abc + 0: abc + *** Failers +No match + qqq\nabc +No match + abc\nzzz +No match + qqq\nabc\nzzz +No match + +/\Aabc\Z/m + abc + 0: abc + abc\n + 0: abc + *** Failers +No match + qqq\nabc +No match + abc\nzzz +No match + qqq\nabc\nzzz +No match + +/\A(.)*\Z/s + abc\ndef + 0: abc\x0adef + 1: f + +/\A(.)*\Z/m + *** Failers + 0: *** Failers + 1: s + abc\ndef +No match + +/(?:b)|(?::+)/ + b::c + 0: b + c::b + 0: :: + +/[-az]+/ + az- + 0: az- + *** Failers + 0: a + b +No match + +/[az-]+/ + za- + 0: za- + *** Failers + 0: a + b +No match + +/[a\-z]+/ + a-z + 0: a-z + *** Failers + 0: a + b +No match + +/[a-z]+/ + abcdxyz + 0: abcdxyz + +/[\d-]+/ + 12-34 + 0: 12-34 + *** Failers +No match + aaa +No match + +/[\d-z]+/ + 12-34z + 0: 12-34z + *** Failers +No match + aaa +No match + +/\x5c/ + \\ + 0: \ + +/\x20Z/ + the Zoo + 0: Z + *** Failers +No match + Zulu +No match + +/(abc)\1/i + abcabc + 0: abcabc + 1: abc + ABCabc + 0: ABCabc + 1: ABC + abcABC + 0: abcABC + 1: abc + +/ab{3cd/ + ab{3cd + 0: ab{3cd + +/ab{3,cd/ + ab{3,cd + 0: ab{3,cd + +/ab{3,4a}cd/ + ab{3,4a}cd + 0: ab{3,4a}cd + +/{4,5a}bc/ + {4,5a}bc + 0: {4,5a}bc + +/abc$/ + abc + 0: abc + abc\n + 0: abc + *** Failers +No match + abc\ndef +No match + +/(abc)\123/ + abc\x53 + 0: abcS + 1: abc + +/(abc)\223/ + abc\x93 + 0: abc\x93 + 1: abc + +/(abc)\323/ + abc\xd3 + 0: abc\xd3 + 1: abc + +/(abc)\100/ + abc\x40 + 0: abc@ + 1: abc + abc\100 + 0: abc@ + 1: abc + +/(abc)\1000/ + abc\x400 + 0: abc@0 + 1: abc + abc\x40\x30 + 0: abc@0 + 1: abc + abc\1000 + 0: abc@0 + 1: abc + abc\100\x30 + 0: abc@0 + 1: abc + abc\100\060 + 0: abc@0 + 1: abc + abc\100\60 + 0: abc@0 + 1: abc + +/^A\8B\9C$/ + A8B9C + 0: A8B9C + *** Failers +No match + A\08B\09C +No match + +/^(A)(B)(C)(D)(E)(F)(G)(H)(I)\8\9$/ + ABCDEFGHIHI + 0: ABCDEFGHIHI + 1: A + 2: B + 3: C + 4: D + 5: E + 6: F + 7: G + 8: H + 9: I + +/^[A\8B\9C]+$/ + A8B9C + 0: A8B9C + *** Failers +No match + A8B9C\x00 +No match + +/(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)\12\123/ + abcdefghijkllS + 0: abcdefghijkllS + 1: a + 2: b + 3: c + 4: d + 5: e + 6: f + 7: g + 8: h + 9: i +10: j +11: k +12: l + +/(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\12\123/ + abcdefghijk\12S + 0: abcdefghijk\x0aS + 1: a + 2: b + 3: c + 4: d + 5: e + 6: f + 7: g + 8: h + 9: i +10: j +11: k + +/ab\idef/ + abidef + 0: abidef + +/a{0}bc/ + bc + 0: bc + +/(a|(bc)){0,0}?xyz/ + xyz + 0: xyz + +/abc[\10]de/ + abc\010de + 0: abc\x08de + +/abc[\1]de/ + abc\1de + 0: abc\x01de + +/(abc)[\1]de/ + abc\1de + 0: abc\x01de + 1: abc + +/(?s)a.b/ + a\nb + 0: a\x0ab + +/^([^a])([^\b])([^c]*)([^d]{3,4})/ + baNOTccccd + 0: baNOTcccc + 1: b + 2: a + 3: NOT + 4: cccc + baNOTcccd + 0: baNOTccc + 1: b + 2: a + 3: NOT + 4: ccc + baNOTccd + 0: baNOTcc + 1: b + 2: a + 3: NO + 4: Tcc + bacccd + 0: baccc + 1: b + 2: a + 3: + 4: ccc + *** Failers + 0: *** Failers + 1: * + 2: * + 3: * Fail + 4: ers + anything +No match + b\bc +No match + baccd +No match + +/[^a]/ + Abc + 0: A + +/[^a]/i + Abc + 0: b + +/[^a]+/ + AAAaAbc + 0: AAA + +/[^a]+/i + AAAaAbc + 0: bc + +/[^a]+/ + bbb\nccc + 0: bbb\x0accc + +/[^k]$/ + 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)\1{8,}/ + aaaaaaaaa + 0: aaaaaaaaa + 1: a + aaaaaaaaaa + 0: aaaaaaaaaa + 1: a + *** Failers +No match + aaaaaaa +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: .23 + 1.875000282 + 0: .875000282 + 1: .875 + 1.235 + 0: .235 + 1: .23 + +/(\.\d\d((?=0)|\d(?=\d)))/ + 1.230003938 + 0: .23 + 1: .23 + 2: + 1.875000282 + 0: .875 + 1: .875 + 2: 5 + *** 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 + 2: table + +/foo(.*)bar/ + The food is under the bar in the barn. + 0: food is under the bar in the bar + 1: d is under the bar in the + +/foo(.*?)bar/ + The food is under the bar in the barn. + 0: food is under the bar + 1: d is under the + +/(.*)(\d*)/ + I have 2 numbers: 53147 + 0: I have 2 numbers: 53147 + 1: I have 2 numbers: 53147 + 2: + +/(.*)(\d+)/ + I have 2 numbers: 53147 + 0: I have 2 numbers: 53147 + 1: I have 2 numbers: 5314 + 2: 7 + +/(.*?)(\d*)/ + I have 2 numbers: 53147 + 0: + 1: + 2: + +/(.*?)(\d+)/ + I have 2 numbers: 53147 + 0: I have 2 + 1: I have + 2: 2 + +/(.*)(\d+)$/ + I have 2 numbers: 53147 + 0: I have 2 numbers: 53147 + 1: I have 2 numbers: 5314 + 2: 7 + +/(.*?)(\d+)$/ + I have 2 numbers: 53147 + 0: I have 2 numbers: 53147 + 1: I have 2 numbers: + 2: 53147 + +/(.*)\b(\d+)$/ + I have 2 numbers: 53147 + 0: I have 2 numbers: 53147 + 1: I have 2 numbers: + 2: 53147 + +/(.*\D)(\d+)$/ + I have 2 numbers: 53147 + 0: I have 2 numbers: 53147 + 1: I have 2 numbers: + 2: 53147 + +/^\D*(?!123)/ + ABC123 + 0: AB + +/^(\D*)(?=\d)(?!123)/ + ABC445 + 0: ABC + 1: 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: a + aab + 0: a + 1: a + +/^(a){0,2}/ + bcd + 0: + abc + 0: a + 1: a + aab + 0: aa + 1: a + +/^(a){0,3}/ + bcd + 0: + abc + 0: a + 1: a + aab + 0: aa + 1: a + aaa + 0: aaa + 1: a + +/^(a){0,}/ + bcd + 0: + abc + 0: a + 1: a + aab + 0: aa + 1: a + aaa + 0: aaa + 1: a + aaaaaaaa + 0: aaaaaaaa + 1: a + +/^(a){1,1}/ + bcd +No match + abc + 0: a + 1: a + aab + 0: a + 1: a + +/^(a){1,2}/ + bcd +No match + abc + 0: a + 1: a + aab + 0: aa + 1: a + +/^(a){1,3}/ + bcd +No match + abc + 0: a + 1: a + aab + 0: aa + 1: a + aaa + 0: aaa + 1: a + +/^(a){1,}/ + bcd +No match + abc + 0: a + 1: a + aab + 0: aa + 1: a + aaa + 0: aaa + 1: a + aaaaaaaa + 0: aaaaaaaa + 1: 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 + +/.*$/ + borfle\nbib.gif\nno\n + 0: no + +/.*$/m + borfle\nbib.gif\nno\n + 0: borfle + +/.*$/s + borfle\nbib.gif\nno\n + 0: borfle\x0abib.gif\x0ano\x0a + +/.*$/ms + borfle\nbib.gif\nno\n + 0: borfle\x0abib.gif\x0ano\x0a + +/(.*X|^B)/ + abcde\n1234Xyz + 0: 1234X + 1: 1234X + BarFoo + 0: B + 1: B + *** Failers +No match + abcde\nBar +No match + +/(.*X|^B)/m + abcde\n1234Xyz + 0: 1234X + 1: 1234X + BarFoo + 0: B + 1: B + abcde\nBar + 0: B + 1: B + +/(.*X|^B)/s + abcde\n1234Xyz + 0: abcde\x0a1234X + 1: abcde\x0a1234X + BarFoo + 0: B + 1: B + *** Failers +No match + abcde\nBar +No match + +/(.*X|^B)/ms + abcde\n1234Xyz + 0: abcde\x0a1234X + 1: abcde\x0a1234X + BarFoo + 0: B + 1: B + abcde\nBar + 0: B + 1: B + +/(?s)(.*X|^B)/ + abcde\n1234Xyz + 0: abcde\x0a1234X + 1: abcde\x0a1234X + BarFoo + 0: B + 1: 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 + 1: c + +/^[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 + 1: + ab + 0: ab + 1: b + abbbb + 0: abbbb + 1: bbbb + *** Failers + 0: a + 1: + bbbbb +No match + +/ab\d{0}e/ + abe + 0: abe + *** Failers +No match + ab1e +No match + +/"([^\\"]+|\\.)*"/ + the \"quick\" brown fox + 0: "quick" + 1: quick + \"the \\\"quick\\\" brown fox\" + 0: "the \"quick\" brown fox" + 1: brown fox + +/.*?/g+ + abc + 0: + 0+ abc + 0: a + 0+ bc + 0: + 0+ bc + 0: b + 0+ c + 0: + 0+ c + 0: c + 0+ + 0: + 0+ + +/\b/g+ + abc + 0: + 0+ abc + 0: + 0+ + +/\b/+g + abc + 0: + 0+ abc + 0: + 0+ + +//g + abc + 0: + 0: + 0: + 0: + +/<tr([\w\W\s\d][^<>]{0,})><TD([\w\W\s\d][^<>]{0,})>([\d]{0,}\.)(.*)((<BR>([\w\W\s\d][^<>]{0,})|[\s]{0,}))<\/a><\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><\/TR>/is + <TR BGCOLOR='#DBE9E9'><TD align=left valign=top>43.<a href='joblist.cfm?JobID=94 6735&Keyword='>Word Processor<BR>(N-1286)</a></TD><TD align=left valign=top>Lega lstaff.com</TD><TD align=left valign=top>CA - Statewide</TD></TR> + 0: <TR BGCOLOR='#DBE9E9'><TD align=left valign=top>43.<a href='joblist.cfm?JobID=94 6735&Keyword='>Word Processor<BR>(N-1286)</a></TD><TD align=left valign=top>Lega lstaff.com</TD><TD align=left valign=top>CA - Statewide</TD></TR> + 1: BGCOLOR='#DBE9E9' + 2: align=left valign=top + 3: 43. + 4: <a href='joblist.cfm?JobID=94 6735&Keyword='>Word Processor<BR>(N-1286) + 5: + 6: + 7: <unset> + 8: align=left valign=top + 9: Lega lstaff.com +10: align=left valign=top +11: CA - 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 + 1: a + bbac + 0: bbac + 1: a + bbbac + 0: bbbac + 1: a + bbbbac + 0: bbbbac + 1: a + bbbbbac + 0: bbbbbac + 1: a + +/^(b+|a){1,2}?c/ + bac + 0: bac + 1: a + bbac + 0: bbac + 1: a + bbbac + 0: bbbac + 1: a + bbbbac + 0: bbbbac + 1: a + bbbbbac + 0: bbbbbac + 1: a + +/(?!\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 + +/(AB)*?\1/ + ABABAB + 0: ABAB + 1: AB + +/(AB)*\1/ + ABABAB + 0: ABABAB + 1: AB + +/(?<!bar)foo/ + foo + 0: foo + catfood + 0: foo + arfootle + 0: foo + rfoosh + 0: foo + *** Failers +No match + barfoo +No match + towbarfoo +No match + +/\w{3}(?<!bar)foo/ + catfood + 0: catfoo + *** Failers +No match + foo +No match + barfoo +No match + towbarfoo +No match + +/(?<=(foo)a)bar/ + fooabar + 0: bar + 1: foo + *** Failers +No match + bar +No match + foobbar +No match + +/\Aabc\z/m + abc + 0: abc + *** Failers +No match + abc\n +No match + qqq\nabc +No match + abc\nzzz +No match + qqq\nabc\nzzz +No match + +"(?>.*/)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: .23 + 1.875000282 + 0: .875000282 + 1: .875 + *** 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 + 1: party + *** Failers +No match + this is not a line with only words and spaces! +No match + +/(\d+)(\w)/ + 12345a + 0: 12345a + 1: 12345 + 2: a + 12345+ + 0: 12345 + 1: 1234 + 2: 5 + +/((?>\d+))(\w)/ + 12345a + 0: 12345a + 1: 12345 + 2: a + *** Failers +No match + 12345+ +No match + +/(?>a+)b/ + aaab + 0: aaab + +/((?>a+)b)/ + aaab + 0: aaab + 1: aaab + +/(?>(a+))b/ + aaab + 0: aaab + 1: aaa + +/(?>b)+/ + aaabbbccc + 0: bbb + +/(?>a+|b+|c+)*c/ + aaabbbbccccd + 0: aaabbbbc + +/((?>[^()]+)|\([^()]*\))+/ + ((abc(ade)ufh()()x + 0: abc(ade)ufh()()x + 1: x + +/\(((?>[^()]+)|\([^()]+\))+\)/ + (abc) + 0: (abc) + 1: abc + (abc(def)xyz) + 0: (abc(def)xyz) + 1: 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 + 1: a bc + *** 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 + 1: a bcde f + *** Failers +No match + abcdef +No match + +/(a(?i)b)c/ + abc + 0: abc + 1: ab + aBc + 0: aBc + 1: aB + *** 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 + 1: xx + aBxxc + 0: xxc + 1: xx + *** Failers +No match + Abxxc +No match + ABxxc +No match + abxxC +No match + +/(?:(a)|b)(?(1)A|B)/ + aA + 0: aA + 1: a + bB + 0: bB + *** Failers +No match + aB +No match + bA +No match + +/^(a)?(?(1)a|b)+$/ + aa + 0: aa + 1: a + b + 0: b + bb + 0: bb + *** Failers +No match + ab +No match + +/^(?(?=abc)\w{3}:|\d\d)$/ + 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 + +/(?(?<!foo)cat|bar)/ + foobar + 0: bar + cat + 0: cat + fcat + 0: cat + focat + 0: cat + *** Failers +No match + foocat +No match + +/( \( )? [^()]+ (?(1) \) |) /x + abcd + 0: abcd + (abcd) + 0: (abcd) + 1: ( + the quick (abcd) fox + 0: the quick + (abcd + 0: abcd + +/( \( )? [^()]+ (?(1) \) ) /x + abcd + 0: abcd + (abcd) + 0: (abcd) + 1: ( + the quick (abcd) fox + 0: the quick + (abcd + 0: abcd + +/^(?(2)a|(1)(2))+$/ + 12 + 0: 12 + 1: 1 + 2: 2 + 12a + 0: 12a + 1: 1 + 2: 2 + 12aa + 0: 12aa + 1: 1 + 2: 2 + *** Failers +No match + 1234 +No match + +/((?i)blah)\s+\1/ + blah blah + 0: blah blah + 1: blah + BLAH BLAH + 0: BLAH BLAH + 1: BLAH + Blah Blah + 0: Blah Blah + 1: Blah + blaH blaH + 0: blaH blaH + 1: blaH + *** Failers +No match + blah BLAH +No match + Blah blah +No match + blaH blah +No match + +/((?i)blah)\s+(?i:\1)/ + blah blah + 0: blah blah + 1: blah + BLAH BLAH + 0: BLAH BLAH + 1: BLAH + Blah Blah + 0: Blah Blah + 1: Blah + blaH blaH + 0: blaH blaH + 1: blaH + blah BLAH + 0: blah BLAH + 1: blah + Blah blah + 0: Blah blah + 1: Blah + blaH blah + 0: blaH blah + 1: blaH + +/(?>a*)*/ + a + 0: a + aa + 0: aa + aaaa + 0: aaaa + +/(abc|)+/ + abc + 0: abc + 1: + abcabc + 0: abcabc + 1: + abcabcabc + 0: abcabcabc + 1: + xyz + 0: + 1: + +/([a]*)*/ + a + 0: a + 1: + aaaaa + 0: aaaaa + 1: + +/([ab]*)*/ + a + 0: a + 1: + b + 0: b + 1: + ababab + 0: ababab + 1: + aaaabcde + 0: aaaab + 1: + bbbb + 0: bbbb + 1: + +/([^a]*)*/ + b + 0: b + 1: + bbbb + 0: bbbb + 1: + aaa + 0: + 1: + +/([^ab]*)*/ + cccc + 0: cccc + 1: + abab + 0: + 1: + +/([a]*?)*/ + a + 0: + 1: + aaaa + 0: + 1: + +/([ab]*?)*/ + a + 0: + 1: + b + 0: + 1: + abab + 0: + 1: + baba + 0: + 1: + +/([^a]*?)*/ + b + 0: + 1: + bbbb + 0: + 1: + aaa + 0: + 1: + +/([^ab]*?)*/ + c + 0: + 1: + cccc + 0: + 1: + baba + 0: + 1: + +/(?>a*)*/ + a + 0: a + aaabcde + 0: aaa + +/((?>a*))*/ + aaaaa + 0: aaaaa + 1: + aabbaa + 0: aa + 1: + +/((?>a*?))*/ + aaaaa + 0: + 1: + aabbaa + 0: + 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 + +/(?<=(foo))bar\1/ + foobarfoo + 0: barfoo + 1: foo + foobarfootling + 0: barfoo + 1: foo + *** Failers +No match + foobar +No match + barfoo +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 + 1: abc + aBCx + 0: aBCx + 1: aBC + bbx + 0: bbx + 1: bb + BBx + 0: BBx + 1: BB + *** Failers +No match + abcX +No match + aBCX +No match + bbX +No match + BBX +No match + +/^([ab](?i)[cd]|[ef])/ + ac + 0: ac + 1: ac + aC + 0: aC + 1: aC + bD + 0: bD + 1: bD + elephant + 0: e + 1: e + Europe + 0: E + 1: E + frog + 0: f + 1: f + France + 0: F + 1: F + *** Failers +No match + Africa +No match + +/^(ab|a(?i)[b-c](?m-i)d|x(?i)y|z)/ + ab + 0: ab + 1: ab + aBd + 0: aBd + 1: aBd + xy + 0: xy + 1: xy + xY + 0: xY + 1: xY + zebra + 0: z + 1: z + Zambesi + 0: Z + 1: 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 + +/(?<=(?<!foo)bar)baz/ + barbaz + 0: baz + barbarbaz + 0: baz + koobarbaz + 0: baz + *** Failers +No match + baz +No match + foobarbaz +No match + +/The cases of aaaa and aaaaaa are missed out below because Perl does things/ +/differently. We know that odd, and maybe incorrect, things happen with/ +No match +/recursive references in Perl, as far as 5.11.3 - see some stuff in test #2./ +No match + +/^(a\1?){4}$/ + a +No match + aa +No match + aaa +No match + aaaaa + 0: aaaaa + 1: a + aaaaaaa + 0: aaaaaaa + 1: a + aaaaaaaa +No match + aaaaaaaaa +No match + aaaaaaaaaa + 0: aaaaaaaaaa + 1: aaaa + aaaaaaaaaaa +No match + aaaaaaaaaaaa +No match + aaaaaaaaaaaaa +No match + aaaaaaaaaaaaaa +No match + aaaaaaaaaaaaaaa +No match + aaaaaaaaaaaaaaaa +No match + +/^(a\1?)(a\1?)(a\2?)(a\3?)$/ + a +No match + aa +No match + aaa +No match + aaaa + 0: aaaa + 1: a + 2: a + 3: a + 4: a + aaaaa + 0: aaaaa + 1: a + 2: aa + 3: a + 4: a + aaaaaa + 0: aaaaaa + 1: a + 2: aa + 3: a + 4: aa + aaaaaaa + 0: aaaaaaa + 1: a + 2: aa + 3: aaa + 4: a + aaaaaaaa +No match + aaaaaaaaa +No match + aaaaaaaaaa + 0: aaaaaaaaaa + 1: a + 2: aa + 3: aaa + 4: aaaa + aaaaaaaaaaa +No match + aaaaaaaaaaaa +No match + aaaaaaaaaaaaa +No match + aaaaaaaaaaaaaa +No match + aaaaaaaaaaaaaaa +No match + aaaaaaaaaaaaaaaa +No match + +/The following tests are taken from the Perl 5.005 test suite; some of them/ +/are compatible with 5.004, but I'd rather not have to sort them out./ +No match + +/abc/ + abc + 0: abc + xabcy + 0: abc + ababc + 0: abc + *** Failers +No match + xbc +No match + axc +No match + abx +No match + +/ab*c/ + abc + 0: abc + +/ab*bc/ + abc + 0: abc + abbc + 0: abbc + abbbbc + 0: abbbbc + +/.{1}/ + abbbbc + 0: a + +/.{3,4}/ + abbbbc + 0: abbb + +/ab{0,}bc/ + abbbbc + 0: abbbbc + +/ab+bc/ + abbc + 0: abbc + *** Failers +No match + abc +No match + abq +No match + +/ab{1,}bc/ + +/ab+bc/ + abbbbc + 0: abbbbc + +/ab{1,}bc/ + abbbbc + 0: abbbbc + +/ab{1,3}bc/ + abbbbc + 0: abbbbc + +/ab{3,4}bc/ + abbbbc + 0: abbbbc + +/ab{4,5}bc/ + *** Failers +No match + abq +No match + abbbbc +No match + +/ab?bc/ + abbc + 0: abbc + abc + 0: abc + +/ab{0,1}bc/ + abc + 0: abc + +/ab?bc/ + +/ab?c/ + abc + 0: abc + +/ab{0,1}c/ + abc + 0: abc + +/^abc$/ + abc + 0: abc + *** Failers +No match + abbbbc +No match + abcc +No match + +/^abc/ + abcc + 0: abc + +/^abc$/ + +/abc$/ + aabc + 0: abc + *** Failers +No match + aabc + 0: abc + aabcd +No match + +/^/ + abc + 0: + +/$/ + abc + 0: + +/a.c/ + abc + 0: abc + axc + 0: axc + +/a.*c/ + axyzc + 0: axyzc + +/a[bc]d/ + abd + 0: abd + *** Failers +No match + axyzd +No match + abc +No match + +/a[b-d]e/ + ace + 0: ace + +/a[b-d]/ + aac + 0: ac + +/a[-b]/ + a- + 0: a- + +/a[b-]/ + a- + 0: a- + +/a]/ + a] + 0: a] + +/a[]]b/ + a]b + 0: a]b + +/a[^bc]d/ + aed + 0: aed + *** Failers +No match + abd +No match + abd +No match + +/a[^-b]c/ + adc + 0: adc + +/a[^]b]c/ + adc + 0: adc + *** Failers +No match + a-c + 0: a-c + a]c +No match + +/\ba\b/ + a- + 0: a + -a + 0: a + -a- + 0: a + +/\by\b/ + *** Failers +No match + xy +No match + yz +No match + xyz +No match + +/\Ba\B/ + *** Failers + 0: a + a- +No match + -a +No match + -a- +No match + +/\By\b/ + xy + 0: y + +/\by\B/ + yz + 0: y + +/\By\B/ + xyz + 0: y + +/\w/ + a + 0: a + +/\W/ + - + 0: - + *** Failers + 0: * + - + 0: - + a +No match + +/a\sb/ + a b + 0: a b + +/a\Sb/ + a-b + 0: a-b + *** Failers +No match + a-b + 0: a-b + a b +No match + +/\d/ + 1 + 0: 1 + +/\D/ + - + 0: - + *** Failers + 0: * + - + 0: - + 1 +No match + +/[\w]/ + a + 0: a + +/[\W]/ + - + 0: - + *** Failers + 0: * + - + 0: - + a +No match + +/a[\s]b/ + a b + 0: a b + +/a[\S]b/ + a-b + 0: a-b + *** Failers +No match + a-b + 0: a-b + a b +No match + +/[\d]/ + 1 + 0: 1 + +/[\D]/ + - + 0: - + *** Failers + 0: * + - + 0: - + 1 +No match + +/ab|cd/ + abc + 0: ab + abcd + 0: ab + +/()ef/ + def + 0: ef + 1: + +/$b/ + +/a\(b/ + a(b + 0: a(b + +/a\(*b/ + ab + 0: ab + a((b + 0: a((b + +/a\\b/ + a\b +No match + +/((a))/ + abc + 0: a + 1: a + 2: a + +/(a)b(c)/ + abc + 0: abc + 1: a + 2: c + +/a+b+c/ + aabbabc + 0: abc + +/a{1,}b{1,}c/ + aabbabc + 0: abc + +/a.+?c/ + abcabc + 0: abc + +/(a+|b)*/ + ab + 0: ab + 1: b + +/(a+|b){0,}/ + ab + 0: ab + 1: b + +/(a+|b)+/ + ab + 0: ab + 1: b + +/(a+|b){1,}/ + ab + 0: ab + 1: b + +/(a+|b)?/ + ab + 0: a + 1: a + +/(a+|b){0,1}/ + ab + 0: a + 1: a + +/[^ab]*/ + cde + 0: cde + +/abc/ + *** Failers +No match + b +No match + + +/a*/ + + +/([abc])*d/ + abbbcd + 0: abbbcd + 1: c + +/([abc])*bcd/ + abcd + 0: abcd + 1: a + +/a|b|c|d|e/ + e + 0: e + +/(a|b|c|d|e)f/ + ef + 0: ef + 1: e + +/abcd*efg/ + abcdefg + 0: abcdefg + +/ab*/ + xabyabbbz + 0: ab + xayabbbz + 0: a + +/(ab|cd)e/ + abcde + 0: cde + 1: cd + +/[abhgefdc]ij/ + hij + 0: hij + +/^(ab|cd)e/ + +/(abc|)ef/ + abcdef + 0: ef + 1: + +/(a|b)c*d/ + abcd + 0: bcd + 1: b + +/(ab|ab*)bc/ + abc + 0: abc + 1: a + +/a([bc]*)c*/ + abc + 0: abc + 1: bc + +/a([bc]*)(c*d)/ + abcd + 0: abcd + 1: bc + 2: d + +/a([bc]+)(c*d)/ + abcd + 0: abcd + 1: bc + 2: d + +/a([bc]*)(c+d)/ + abcd + 0: abcd + 1: b + 2: cd + +/a[bcd]*dcdcde/ + adcdcde + 0: adcdcde + +/a[bcd]+dcdcde/ + *** Failers +No match + abcde +No match + adcdcde +No match + +/(ab|a)b*c/ + abc + 0: abc + 1: ab + +/((a)(b)c)(d)/ + abcd + 0: abcd + 1: abc + 2: a + 3: b + 4: d + +/[a-zA-Z_][a-zA-Z0-9_]*/ + alpha + 0: alpha + +/^a(bc+|b[eh])g|.h$/ + abh + 0: bh + +/(bc+d$|ef*g.|h?i(j|k))/ + effgz + 0: effgz + 1: effgz + ij + 0: ij + 1: ij + 2: j + reffgz + 0: effgz + 1: effgz + *** Failers +No match + effg +No match + bcdd +No match + +/((((((((((a))))))))))/ + a + 0: a + 1: a + 2: a + 3: a + 4: a + 5: a + 6: a + 7: a + 8: a + 9: a +10: a + +/((((((((((a))))))))))\10/ + aa + 0: aa + 1: a + 2: a + 3: a + 4: a + 5: a + 6: a + 7: a + 8: a + 9: a +10: a + +/(((((((((a)))))))))/ + a + 0: a + 1: a + 2: a + 3: a + 4: a + 5: a + 6: a + 7: a + 8: a + 9: a + +/multiple words of text/ + *** Failers +No match + aa +No match + uh-uh +No match + +/multiple words/ + multiple words, yeah + 0: multiple words + +/(.*)c(.*)/ + abcde + 0: abcde + 1: ab + 2: de + +/\((.*), (.*)\)/ + (a, b) + 0: (a, b) + 1: a + 2: b + +/[k]/ + +/abcd/ + abcd + 0: abcd + +/a(bc)d/ + abcd + 0: abcd + 1: bc + +/a[-]?c/ + ac + 0: ac + +/(abc)\1/ + abcabc + 0: abcabc + 1: abc + +/([a-c]*)\1/ + abcabc + 0: abcabc + 1: abc + +/(a)|\1/ + a + 0: a + 1: a + *** Failers + 0: a + 1: a + ab + 0: a + 1: a + x +No match + +/(([a-c])b*?\2)*/ + ababbbcbc + 0: ababb + 1: bb + 2: b + +/(([a-c])b*?\2){3}/ + ababbbcbc + 0: ababbbcbc + 1: cbc + 2: c + +/((\3|b)\2(a)x)+/ + aaaxabaxbaaxbbax + 0: bbax + 1: bbax + 2: b + 3: a + +/((\3|b)\2(a)){2,}/ + bbaababbabaaaaabbaaaabba + 0: bbaaaabba + 1: bba + 2: b + 3: a + +/abc/i + ABC + 0: ABC + XABCY + 0: ABC + ABABC + 0: ABC + *** Failers +No match + aaxabxbaxbbx +No match + XBC +No match + AXC +No match + ABX +No match + +/ab*c/i + ABC + 0: ABC + +/ab*bc/i + ABC + 0: ABC + ABBC + 0: ABBC + +/ab*?bc/i + ABBBBC + 0: ABBBBC + +/ab{0,}?bc/i + ABBBBC + 0: ABBBBC + +/ab+?bc/i + ABBC + 0: ABBC + +/ab+bc/i + *** Failers +No match + ABC +No match + ABQ +No match + +/ab{1,}bc/i + +/ab+bc/i + ABBBBC + 0: ABBBBC + +/ab{1,}?bc/i + ABBBBC + 0: ABBBBC + +/ab{1,3}?bc/i + ABBBBC + 0: ABBBBC + +/ab{3,4}?bc/i + ABBBBC + 0: ABBBBC + +/ab{4,5}?bc/i + *** Failers +No match + ABQ +No match + ABBBBC +No match + +/ab??bc/i + ABBC + 0: ABBC + ABC + 0: ABC + +/ab{0,1}?bc/i + ABC + 0: ABC + +/ab??bc/i + +/ab??c/i + ABC + 0: ABC + +/ab{0,1}?c/i + ABC + 0: ABC + +/^abc$/i + ABC + 0: ABC + *** Failers +No match + ABBBBC +No match + ABCC +No match + +/^abc/i + ABCC + 0: ABC + +/^abc$/i + +/abc$/i + AABC + 0: ABC + +/^/i + ABC + 0: + +/$/i + ABC + 0: + +/a.c/i + ABC + 0: ABC + AXC + 0: AXC + +/a.*?c/i + AXYZC + 0: AXYZC + +/a.*c/i + *** Failers +No match + AABC + 0: AABC + AXYZD +No match + +/a[bc]d/i + ABD + 0: ABD + +/a[b-d]e/i + ACE + 0: ACE + *** Failers +No match + ABC +No match + ABD +No match + +/a[b-d]/i + AAC + 0: AC + +/a[-b]/i + A- + 0: A- + +/a[b-]/i + A- + 0: A- + +/a]/i + A] + 0: A] + +/a[]]b/i + A]B + 0: A]B + +/a[^bc]d/i + AED + 0: AED + +/a[^-b]c/i + ADC + 0: ADC + *** Failers +No match + ABD +No match + A-C +No match + +/a[^]b]c/i + ADC + 0: ADC + +/ab|cd/i + ABC + 0: AB + ABCD + 0: AB + +/()ef/i + DEF + 0: EF + 1: + +/$b/i + *** Failers +No match + A]C +No match + B +No match + +/a\(b/i + A(B + 0: A(B + +/a\(*b/i + AB + 0: AB + A((B + 0: A((B + +/a\\b/i + A\B +No match + +/((a))/i + ABC + 0: A + 1: A + 2: A + +/(a)b(c)/i + ABC + 0: ABC + 1: A + 2: C + +/a+b+c/i + AABBABC + 0: ABC + +/a{1,}b{1,}c/i + AABBABC + 0: ABC + +/a.+?c/i + ABCABC + 0: ABC + +/a.*?c/i + ABCABC + 0: ABC + +/a.{0,5}?c/i + ABCABC + 0: ABC + +/(a+|b)*/i + AB + 0: AB + 1: B + +/(a+|b){0,}/i + AB + 0: AB + 1: B + +/(a+|b)+/i + AB + 0: AB + 1: B + +/(a+|b){1,}/i + AB + 0: AB + 1: B + +/(a+|b)?/i + AB + 0: A + 1: A + +/(a+|b){0,1}/i + AB + 0: A + 1: A + +/(a+|b){0,1}?/i + AB + 0: + +/[^ab]*/i + CDE + 0: CDE + +/abc/i + +/a*/i + + +/([abc])*d/i + ABBBCD + 0: ABBBCD + 1: C + +/([abc])*bcd/i + ABCD + 0: ABCD + 1: A + +/a|b|c|d|e/i + E + 0: E + +/(a|b|c|d|e)f/i + EF + 0: EF + 1: E + +/abcd*efg/i + ABCDEFG + 0: ABCDEFG + +/ab*/i + XABYABBBZ + 0: AB + XAYABBBZ + 0: A + +/(ab|cd)e/i + ABCDE + 0: CDE + 1: CD + +/[abhgefdc]ij/i + HIJ + 0: HIJ + +/^(ab|cd)e/i + ABCDE +No match + +/(abc|)ef/i + ABCDEF + 0: EF + 1: + +/(a|b)c*d/i + ABCD + 0: BCD + 1: B + +/(ab|ab*)bc/i + ABC + 0: ABC + 1: A + +/a([bc]*)c*/i + ABC + 0: ABC + 1: BC + +/a([bc]*)(c*d)/i + ABCD + 0: ABCD + 1: BC + 2: D + +/a([bc]+)(c*d)/i + ABCD + 0: ABCD + 1: BC + 2: D + +/a([bc]*)(c+d)/i + ABCD + 0: ABCD + 1: B + 2: CD + +/a[bcd]*dcdcde/i + ADCDCDE + 0: ADCDCDE + +/a[bcd]+dcdcde/i + +/(ab|a)b*c/i + ABC + 0: ABC + 1: AB + +/((a)(b)c)(d)/i + ABCD + 0: ABCD + 1: ABC + 2: A + 3: B + 4: D + +/[a-zA-Z_][a-zA-Z0-9_]*/i + ALPHA + 0: ALPHA + +/^a(bc+|b[eh])g|.h$/i + ABH + 0: BH + +/(bc+d$|ef*g.|h?i(j|k))/i + EFFGZ + 0: EFFGZ + 1: EFFGZ + IJ + 0: IJ + 1: IJ + 2: J + REFFGZ + 0: EFFGZ + 1: EFFGZ + *** Failers +No match + ADCDCDE +No match + EFFG +No match + BCDD +No match + +/((((((((((a))))))))))/i + A + 0: A + 1: A + 2: A + 3: A + 4: A + 5: A + 6: A + 7: A + 8: A + 9: A +10: A + +/((((((((((a))))))))))\10/i + AA + 0: AA + 1: A + 2: A + 3: A + 4: A + 5: A + 6: A + 7: A + 8: A + 9: A +10: A + +/(((((((((a)))))))))/i + A + 0: A + 1: A + 2: A + 3: A + 4: A + 5: A + 6: A + 7: A + 8: A + 9: A + +/(?:(?:(?:(?:(?:(?:(?:(?:(?:(a))))))))))/i + A + 0: A + 1: A + +/(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/i + C + 0: C + 1: C + +/multiple words of text/i + *** Failers +No match + AA +No match + UH-UH +No match + +/multiple words/i + MULTIPLE WORDS, YEAH + 0: MULTIPLE WORDS + +/(.*)c(.*)/i + ABCDE + 0: ABCDE + 1: AB + 2: DE + +/\((.*), (.*)\)/i + (A, B) + 0: (A, B) + 1: A + 2: B + +/[k]/i + +/abcd/i + ABCD + 0: ABCD + +/a(bc)d/i + ABCD + 0: ABCD + 1: BC + +/a[-]?c/i + AC + 0: AC + +/(abc)\1/i + ABCABC + 0: ABCABC + 1: ABC + +/([a-c]*)\1/i + ABCABC + 0: ABCABC + 1: ABC + +/a(?!b)./ + abad + 0: ad + +/a(?=d)./ + abad + 0: ad + +/a(?=c|d)./ + abad + 0: ad + +/a(?:b|c|d)(.)/ + ace + 0: ace + 1: e + +/a(?:b|c|d)*(.)/ + ace + 0: ace + 1: e + +/a(?:b|c|d)+?(.)/ + ace + 0: ace + 1: e + acdbcdbe + 0: acd + 1: d + +/a(?:b|c|d)+(.)/ + acdbcdbe + 0: acdbcdbe + 1: e + +/a(?:b|c|d){2}(.)/ + acdbcdbe + 0: acdb + 1: b + +/a(?:b|c|d){4,5}(.)/ + acdbcdbe + 0: acdbcdb + 1: b + +/a(?:b|c|d){4,5}?(.)/ + acdbcdbe + 0: acdbcd + 1: d + +/((foo)|(bar))*/ + foobar + 0: foobar + 1: bar + 2: foo + 3: bar + +/a(?:b|c|d){6,7}(.)/ + acdbcdbe + 0: acdbcdbe + 1: e + +/a(?:b|c|d){6,7}?(.)/ + acdbcdbe + 0: acdbcdbe + 1: e + +/a(?:b|c|d){5,6}(.)/ + acdbcdbe + 0: acdbcdbe + 1: e + +/a(?:b|c|d){5,6}?(.)/ + acdbcdbe + 0: acdbcdb + 1: b + +/a(?:b|c|d){5,7}(.)/ + acdbcdbe + 0: acdbcdbe + 1: e + +/a(?:b|c|d){5,7}?(.)/ + acdbcdbe + 0: acdbcdb + 1: b + +/a(?:b|(c|e){1,2}?|d)+?(.)/ + ace + 0: ace + 1: c + 2: e + +/^(.+)?B/ + AB + 0: AB + 1: A + +/^([^a-z])|(\^)$/ + . + 0: . + 1: . + +/^[<>]&/ + <&OUT + 0: <& + +/^(a\1?){4}$/ + aaaaaaaaaa + 0: aaaaaaaaaa + 1: aaaa + *** Failers +No match + AB +No match + aaaaaaaaa +No match + aaaaaaaaaaa +No match + +/^(a(?(1)\1)){4}$/ + aaaaaaaaaa + 0: aaaaaaaaaa + 1: aaaa + *** Failers +No match + aaaaaaaaa +No match + aaaaaaaaaaa +No match + +/(?:(f)(o)(o)|(b)(a)(r))*/ + foobar + 0: foobar + 1: f + 2: o + 3: o + 4: b + 5: a + 6: r + +/(?<=a)b/ + ab + 0: b + *** Failers +No match + cb +No match + b +No match + +/(?<!c)b/ + ab + 0: b + b + 0: b + b + 0: b + +/(?:..)*a/ + aba + 0: aba + +/(?:..)*?a/ + aba + 0: a + +/^(?:b|a(?=(.)))*\1/ + abc + 0: ab + 1: b + +/^(){3,5}/ + abc + 0: + 1: + +/^(a+)*ax/ + aax + 0: aax + 1: a + +/^((a|b)+)*ax/ + aax + 0: aax + 1: a + 2: a + +/^((a|bc)+)*ax/ + aax + 0: aax + 1: a + 2: a + +/(a|x)*ab/ + cab + 0: ab + +/(a)*ab/ + cab + 0: ab + +/(?:(?i)a)b/ + ab + 0: ab + +/((?i)a)b/ + ab + 0: ab + 1: a + +/(?:(?i)a)b/ + Ab + 0: Ab + +/((?i)a)b/ + Ab + 0: Ab + 1: A + +/(?:(?i)a)b/ + *** Failers +No match + cb +No match + aB +No match + +/((?i)a)b/ + +/(?i:a)b/ + ab + 0: ab + +/((?i:a))b/ + ab + 0: ab + 1: a + +/(?i:a)b/ + Ab + 0: Ab + +/((?i:a))b/ + Ab + 0: Ab + 1: A + +/(?i:a)b/ + *** Failers +No match + aB +No match + aB +No match + +/((?i:a))b/ + +/(?:(?-i)a)b/i + ab + 0: ab + +/((?-i)a)b/i + ab + 0: ab + 1: a + +/(?:(?-i)a)b/i + aB + 0: aB + +/((?-i)a)b/i + aB + 0: aB + 1: a + +/(?:(?-i)a)b/i + *** Failers +No match + aB + 0: aB + Ab +No match + +/((?-i)a)b/i + +/(?:(?-i)a)b/i + aB + 0: aB + +/((?-i)a)b/i + aB + 0: aB + 1: a + +/(?:(?-i)a)b/i + *** Failers +No match + Ab +No match + AB +No match + +/((?-i)a)b/i + +/(?-i:a)b/i + ab + 0: ab + +/((?-i:a))b/i + ab + 0: ab + 1: a + +/(?-i:a)b/i + aB + 0: aB + +/((?-i:a))b/i + aB + 0: aB + 1: a + +/(?-i:a)b/i + *** Failers +No match + AB +No match + Ab +No match + +/((?-i:a))b/i + +/(?-i:a)b/i + aB + 0: aB + +/((?-i:a))b/i + aB + 0: aB + 1: a + +/(?-i:a)b/i + *** Failers +No match + Ab +No match + AB +No match + +/((?-i:a))b/i + +/((?-i:a.))b/i + *** Failers +No match + AB +No match + a\nB +No match + +/((?s-i:a.))b/i + a\nB + 0: a\x0aB + 1: a\x0a + +/(?:c|d)(?:)(?:a(?:)(?:b)(?:b(?:))(?:b(?:)(?:b)))/ + cabbbb + 0: cabbbb + +/(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/ + caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb + 0: caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb + +/(ab)\d\1/i + Ab4ab + 0: Ab4ab + 1: Ab + ab4Ab + 0: ab4Ab + 1: ab + +/foo\w*\d{4}baz/ + foobar1234baz + 0: foobar1234baz + +/x(~~)*(?:(?:F)?)?/ + x~~ + 0: x~~ + 1: ~~ + +/^a(?#xxx){3}c/ + aaac + 0: aaac + +/^a (?#xxx) (?#yyy) {3}c/x + aaac + 0: aaac + +/(?<![cd])b/ + *** Failers +No match + B\nB +No match + dbcb +No match + +/(?<![cd])[ab]/ + dbaacb + 0: a + +/(?<!(c|d))b/ + +/(?<!(c|d))[ab]/ + dbaacb + 0: a + +/(?<!cd)[ab]/ + cdaccb + 0: b + +/^(?:a?b?)*$/ + \ + 0: + a + 0: a + ab + 0: ab + aaa + 0: aaa + *** Failers +No match + dbcb +No match + a-- +No match + aa-- +No match + +/((?s)^a(.))((?m)^b$)/ + a\nb\nc\n + 0: a\x0ab + 1: a\x0a + 2: \x0a + 3: b + +/((?m)^b$)/ + a\nb\nc\n + 0: b + 1: b + +/(?m)^b/ + a\nb\n + 0: b + +/(?m)^(b)/ + a\nb\n + 0: b + 1: b + +/((?m)^b)/ + a\nb\n + 0: b + 1: b + +/\n((?m)^b)/ + a\nb\n + 0: \x0ab + 1: b + +/((?s).)c(?!.)/ + a\nb\nc\n + 0: \x0ac + 1: \x0a + a\nb\nc\n + 0: \x0ac + 1: \x0a + +/((?s)b.)c(?!.)/ + a\nb\nc\n + 0: b\x0ac + 1: b\x0a + a\nb\nc\n + 0: b\x0ac + 1: b\x0a + +/^b/ + +/()^b/ + *** Failers +No match + a\nb\nc\n +No match + a\nb\nc\n +No match + +/((?m)^b)/ + a\nb\nc\n + 0: b + 1: b + +/(x)?(?(1)a|b)/ + *** Failers +No match + a +No match + a +No match + +/(x)?(?(1)b|a)/ + a + 0: a + +/()?(?(1)b|a)/ + a + 0: a + +/()(?(1)b|a)/ + +/()?(?(1)a|b)/ + a + 0: a + 1: + +/^(\()?blah(?(1)(\)))$/ + (blah) + 0: (blah) + 1: ( + 2: ) + blah + 0: blah + *** Failers +No match + a +No match + blah) +No match + (blah +No match + +/^(\(+)?blah(?(1)(\)))$/ + (blah) + 0: (blah) + 1: ( + 2: ) + blah + 0: blah + *** Failers +No match + blah) +No match + (blah +No match + +/(?(?!a)a|b)/ + +/(?(?!a)b|a)/ + a + 0: a + +/(?(?=a)b|a)/ + *** Failers +No match + a +No match + a +No match + +/(?(?=a)a|b)/ + a + 0: a + +/(?=(a+?))(\1ab)/ + aaab + 0: aab + 1: a + 2: aab + +/^(?=(a+?))\1ab/ + +/(\w+:)+/ + one: + 0: one: + 1: one: + +/$(?<=^(a))/ + a + 0: + 1: a + +/(?=(a+?))(\1ab)/ + aaab + 0: aab + 1: a + 2: aab + +/^(?=(a+?))\1ab/ + *** Failers +No match + aaab +No match + aaab +No match + +/([\w:]+::)?(\w+)$/ + abcd + 0: abcd + 1: <unset> + 2: abcd + xy:z:::abcd + 0: xy:z:::abcd + 1: xy:z::: + 2: abcd + +/^[^bcd]*(c+)/ + aexycd + 0: aexyc + 1: c + +/(a*)b+/ + caab + 0: aab + 1: aa + +/([\w:]+::)?(\w+)$/ + abcd + 0: abcd + 1: <unset> + 2: abcd + xy:z:::abcd + 0: xy:z:::abcd + 1: xy:z::: + 2: abcd + *** Failers + 0: Failers + 1: <unset> + 2: Failers + abcd: +No match + abcd: +No match + +/^[^bcd]*(c+)/ + aexycd + 0: aexyc + 1: c + +/(>a+)ab/ + +/(?>a+)b/ + aaab + 0: aaab + +/([[:]+)/ + a:[b]: + 0: :[ + 1: :[ + +/([[=]+)/ + a=[b]= + 0: =[ + 1: =[ + +/([[.]+)/ + a.[b]. + 0: .[ + 1: .[ + +/((?>a+)b)/ + aaab + 0: aaab + 1: aaab + +/(?>(a+))b/ + aaab + 0: aaab + 1: aaa + +/((?>[^()]+)|\([^()]*\))+/ + ((abc(ade)ufh()()x + 0: abc(ade)ufh()()x + 1: x + +/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 + +/^(?>(?(1)\.|())[^\W_](?>[a-z0-9-]*[^\W_])?)+$/ + a + 0: a + 1: + abc + 0: abc + 1: + a-b + 0: a-b + 1: + 0-9 + 0: 0-9 + 1: + a.b + 0: a.b + 1: + 5.6.7 + 0: 5.6.7 + 1: + the.quick.brown.fox + 0: the.quick.brown.fox + 1: + a100.b200.300c + 0: a100.b200.300c + 1: + 12-ab.1245 + 0: 12-ab.1245 + 1: + *** Failers +No match + \ +No match + .a +No match + -a +No match + a- +No match + a. +No match + a_b +No match + a.- +No match + a.. +No match + ab..bc +No match + the.quick.brown.fox- +No match + the.quick.brown.fox. +No match + the.quick.brown.fox_ +No match + the.quick.brown.fox+ +No match + +/(?>.*)(?<=(abcd|wxyz))/ + alphabetabcd + 0: alphabetabcd + 1: abcd + endingwxyz + 0: endingwxyz + 1: wxyz + *** 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}...)(?<!999)foo/ + 123abcfoo + 0: foo + 123456foo + 0: foo + *** Failers +No match + 123999foo +No match + +/<a[\s]+href[\s]*=[\s]* # find <a href= + ([\"\'])? # find single or double quote + (?(1) (.*?)\1 | ([^\s]+)) # if quote found, match up to next matching + # quote, otherwise match up to next space +/isx + <a href=abcd xyz + 0: <a href=abcd + 1: <unset> + 2: <unset> + 3: abcd + <a href=\"abcd xyz pqr\" cats + 0: <a href="abcd xyz pqr" + 1: " + 2: abcd xyz pqr + <a href=\'abcd xyz pqr\' cats + 0: <a href='abcd xyz pqr' + 1: ' + 2: abcd xyz pqr + +/<a\s+href\s*=\s* # find <a href= + (["'])? # find single or double quote + (?(1) (.*?)\1 | (\S+)) # if quote found, match up to next matching + # quote, otherwise match up to next space +/isx + <a href=abcd xyz + 0: <a href=abcd + 1: <unset> + 2: <unset> + 3: abcd + <a href=\"abcd xyz pqr\" cats + 0: <a href="abcd xyz pqr" + 1: " + 2: abcd xyz pqr + <a href = \'abcd xyz pqr\' cats + 0: <a href = 'abcd xyz pqr' + 1: ' + 2: abcd xyz pqr + +/<a\s+href(?>\s*)=(?>\s*) # find <a href= + (["'])? # find single or double quote + (?(1) (.*?)\1 | (\S+)) # if quote found, match up to next matching + # quote, otherwise match up to next space +/isx + <a href=abcd xyz + 0: <a href=abcd + 1: <unset> + 2: <unset> + 3: abcd + <a href=\"abcd xyz pqr\" cats + 0: <a href="abcd xyz pqr" + 1: " + 2: abcd xyz pqr + <a href = \'abcd xyz pqr\' cats + 0: <a href = 'abcd xyz pqr' + 1: ' + 2: abcd xyz pqr + +/((Z)+|A)*/ + ZABCDEFG + 0: ZA + 1: A + 2: Z + +/(Z()|A)*/ + ZABCDEFG + 0: ZA + 1: A + 2: + +/(Z(())|A)*/ + ZABCDEFG + 0: ZA + 1: A + 2: + 3: + +/((?>Z)+|A)*/ + ZABCDEFG + 0: ZA + 1: A + +/((?>)+|A)*/ + ZABCDEFG + 0: + 1: + +/a*/g + abbab + 0: a + 0: + 0: + 0: a + 0: + 0: + +/^[\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 + +/[[: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 + 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 + 1: abc + AxyzB + 0: xyz + 1: xyz + +/(?i)AB(?-i)C/ + XabCY + 0: abC + *** Failers +No match + XabcY +No match + +/((?i)AB(?-i)C|D)E/ + abCE + 0: abCE + 1: abC + DE + 0: DE + 1: D + *** Failers +No match + abcE +No match + abCe +No match + dE +No match + De +No match + +/(.*)\d+\1/ + abc123abc + 0: abc123abc + 1: abc + abc123bc + 0: bc123bc + 1: bc + +/(.*)\d+\1/s + abc123abc + 0: abc123abc + 1: abc + abc123bc + 0: bc123bc + 1: bc + +/((.*))\d+\1/ + abc123abc + 0: abc123abc + 1: abc + 2: abc + abc123bc + 0: bc123bc + 1: bc + 2: bc + +/-- This tests for an IPv6 address in the form where it can have up to + eight components, one and only one of which is empty. This must be + an internal component. --/ + +/^(?!:) # colon disallowed at start + (?: # start of item + (?: [0-9a-f]{1,4} | # 1-4 hex digits or + (?(1)0 | () ) ) # if null previously matched, fail; else null + : # followed by colon + ){1,7} # end item; 1-7 of them required + [0-9a-f]{1,4} $ # final hex number at end of string + (?(1)|.) # check that there was an empty component + /xi + a123::a123 + 0: a123::a123 + 1: + a123:b342::abcd + 0: a123:b342::abcd + 1: + a123:b342::324e:abcd + 0: a123:b342::324e:abcd + 1: + a123:ddde:b342::324e:abcd + 0: a123:ddde:b342::324e:abcd + 1: + a123:ddde:b342::324e:dcba:abcd + 0: a123:ddde:b342::324e:dcba:abcd + 1: + a123:ddde:9999:b342::324e:dcba:abcd + 0: a123:ddde:9999:b342::324e:dcba:abcd + 1: + *** Failers +No match + 1:2:3:4:5:6:7:8 +No match + a123:bce:ddde:9999:b342::324e:dcba:abcd +No match + a123::9999:b342::324e:dcba:abcd +No match + abcde:2:3:4:5:6:7:8 +No match + ::1 +No match + abcd:fee0:123:: +No match + :1 +No match + 1: +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 + +/ab cd (?x) de fg/ + ab cd defg + 0: ab cd defg + +/ab cd(?x) de fg/ + ab cddefg + 0: ab cddefg + ** Failers +No match + abcddefg +No match + +/(?<![^f]oo)(bar)/ + foobarX + 0: bar + 1: bar + ** Failers +No match + boobarX +No match + +/(?<![^f])X/ + offX + 0: X + ** Failers +No match + onyX +No match + +/(?<=[^f])X/ + onyX + 0: X + ** Failers +No match + offX +No match + +/^/mg + a\nb\nc\n + 0: + 0: + 0: + \ + 0: + +/(?<=C\n)^/mg + A\nC\nC\n + 0: + +/(?:(?(1)a|b)(X))+/ + bXaX + 0: bXaX + 1: X + +/(?:(?(1)\1a|b)(X|Y))+/ + bXXaYYaY + 0: bXXaYYaY + 1: Y + bXYaXXaX + 0: bX + 1: X + +/()()()()()()()()()(?:(?(10)\10a|b)(X|Y))+/ + bXXaYYaY + 0: bX + 1: + 2: + 3: + 4: + 5: + 6: + 7: + 8: + 9: +10: X + +/[[,abc,]+]/ + abc] + 0: abc] + a,b] + 0: a,b] + [a,b,c] + 0: [a,b,c] + +/(?-x: )/x + A\x20B + 0: + +"(?x)(?-x: \s*#\s*)" + A # B + 0: # + ** Failers +No match + # +No match + +"(?x-is)(?:(?-ixs) \s*#\s*) include" + A #include + 0: #include + ** Failers +No match + A#include +No match + A #Include +No match + +/a*b*\w/ + aaabbbb + 0: aaabbbb + aaaa + 0: aaaa + a + 0: a + +/a*b?\w/ + aaabbbb + 0: aaabb + aaaa + 0: aaaa + a + 0: a + +/a*b{0,4}\w/ + aaabbbb + 0: aaabbbb + aaaa + 0: aaaa + a + 0: a + +/a*b{0,}\w/ + aaabbbb + 0: aaabbbb + aaaa + 0: aaaa + a + 0: a + +/a*\d*\w/ + 0a + 0: 0a + a + 0: a + +/a*b *\w/x + a + 0: a + +/a*b#comment + *\w/x + a + 0: a + +/a* b *\w/x + a + 0: a + +/^\w+=.*(\\\n.*)*/ + abc=xyz\\\npqr + 0: abc=xyz\ + +/(?=(\w+))\1:/ + abcd: + 0: abcd: + 1: abcd + +/^(?=(\w+))\1:/ + abcd: + 0: abcd: + 1: abcd + +/^\Eabc/ + abc + 0: abc + +/^[\Eabc]/ + a + 0: a + ** Failers +No match + E +No match + +/^[a-\Ec]/ + b + 0: b + ** Failers +No match + - +No match + E +No match + +/^[a\E\E-\Ec]/ + b + 0: b + ** Failers +No match + - +No match + E +No match + +/^[\E\Qa\E-\Qz\E]+/ + b + 0: b + ** Failers +No match + - +No match + +/^[a\Q]bc\E]/ + a + 0: a + ] + 0: ] + c + 0: c + +/^[a-\Q\E]/ + a + 0: a + - + 0: - + +/^(a()*)*/ + aaaa + 0: aaaa + 1: a + 2: + +/^(?:a(?:(?:))*)*/ + aaaa + 0: aaaa + +/^(a()+)+/ + aaaa + 0: aaaa + 1: a + 2: + +/^(?:a(?:(?:))+)+/ + aaaa + 0: aaaa + +/(a){0,3}(?(1)b|(c|))*D/ + abbD + 0: abbD + 1: a + ccccD + 0: ccccD + 1: <unset> + 2: + D + 0: D + 1: <unset> + 2: + +/(a|)*\d/ + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +No match + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 + 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 + 1: + +/(?>a|)*\d/ + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +No match + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 + 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 + +/(?:a|)*\d/ + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +No match + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 + 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4 + +/\Z/g + abc\n + 0: + 0: + +/^(?s)(?>.*)(?<!\n)/ + abc + 0: abc + abc\n +No match + +/^(?![^\n]*\n\z)/ + abc + 0: + abc\n +No match + +/\z(?<!\n)/ + abc + 0: + abc\n +No match + +/(.*(.)?)*/ + abcd + 0: abcd + 1: + +/( (A | (?(1)0|) )* )/x + abcd + 0: + 1: + 2: + +/( ( (?(1)0|) )* )/x + abcd + 0: + 1: + 2: + +/( (?(1)0|)* )/x + abcd + 0: + 1: + +/[[:abcd:xyz]]/ + a] + 0: a] + :] + 0: :] + +/[abc[:x\]pqr]/ + a + 0: a + [ + 0: [ + : + 0: : + ] + 0: ] + p + 0: p + +/.*[op][xyz]/ + fooabcfoo +No match + +/(?(?=.*b)b|^)/ + adc + 0: + abc + 0: b + +/(?(?=^.*b)b|^)/ + adc + 0: + abc +No match + +/(?(?=.*b)b|^)*/ + adc + 0: + abc + 0: + +/(?(?=.*b)b|^)+/ + adc + 0: + abc + 0: b + +/(?(?=b).*b|^d)/ + abc + 0: b + +/(?(?=.*b).*b|^d)/ + abc + 0: ab + +/^%((?(?=[a])[^%])|b)*%$/ + %ab% + 0: %ab% + 1: + +/(?i)a(?-i)b|c/ + XabX + 0: ab + XAbX + 0: Ab + CcC + 0: c + ** Failers +No match + XABX +No match + +/[\x00-\xff\s]+/ + \x0a\x0b\x0c\x0d + 0: \x0a\x0b\x0c\x0d + +/^\c/ + ? + 0: ? + +/(abc)\1/i + abc +No match + +/(abc)\1/ + abc +No match + +/[^a]*/i + 12abc + 0: 12 + 12ABC + 0: 12 + +/[^a]*+/i + 12abc + 0: 12 + 12ABC + 0: 12 + +/[^a]*?X/i + ** Failers +No match + 12abc +No match + 12ABC +No match + +/[^a]+?X/i + ** Failers +No match + 12abc +No match + 12ABC +No match + +/[^a]?X/i + 12aXbcX + 0: X + 12AXBCX + 0: X + BCX + 0: CX + +/[^a]??X/i + 12aXbcX + 0: X + 12AXBCX + 0: X + BCX + 0: CX + +/[^a]?+X/i + 12aXbcX + 0: cX + 12AXBCX + 0: CX + BCX + 0: CX + +/[^a]{2,3}/i + abcdef + 0: bcd + ABCDEF + 0: BCD + +/[^a]{2,3}?/i + abcdef + 0: bc + ABCDEF + 0: BC + +/[^a]{2,3}+/i + abcdef + 0: bcd + ABCDEF + 0: BCD + +/((a|)+)+Z/ + Z + 0: Z + 1: + 2: + +/(a)b|(a)c/ + ac + 0: ac + 1: <unset> + 2: a + +/(?>(a))b|(a)c/ + ac + 0: ac + 1: <unset> + 2: a + +/(?=(a))ab|(a)c/ + ac + 0: ac + 1: <unset> + 2: a + +/((?>(a))b|(a)c)/ + ac + 0: ac + 1: ac + 2: <unset> + 3: a + +/((?>(a))b|(a)c)++/ + ac + 0: ac + 1: ac + 2: <unset> + 3: a + +/(?:(?>(a))b|(a)c)++/ + ac + 0: ac + 1: <unset> + 2: a + +/(?=(?>(a))b|(a)c)(..)/ + ac + 0: ac + 1: <unset> + 2: a + 3: ac + +/(?>(?>(a))b|(a)c)/ + ac + 0: ac + 1: <unset> + 2: a + +/(?:(?>([ab])))+a=/+ + =ba= + 0: ba= + 0+ + 1: b + +/(?>([ab]))+a=/+ + =ba= + 0: ba= + 0+ + 1: b + +/((?>(a+)b)+(aabab))/ + aaaabaaabaabab + 0: aaaabaaabaabab + 1: aaaabaaabaabab + 2: aaa + 3: aabab + +/(?>a+|ab)+?c/ + aabc +No match + +/(?>a+|ab)+c/ + aabc +No match + +/(?:a+|ab)+c/ + aabc + 0: aabc + +/(?(?=(a))a)/ + a + 0: a + 1: a + +/(?(?=(a))a)(b)/ + ab + 0: ab + 1: a + 2: b + +/^(?:a|ab)++c/ + aaaabc +No match + +/^(?>a|ab)++c/ + aaaabc +No match + +/^(?:a|ab)+c/ + aaaabc + 0: aaaabc + +/(?=abc){3}abc/+ + abcabcabc + 0: abc + 0+ abcabc + ** Failers +No match + xyz +No match + +/(?=abc)+abc/+ + abcabcabc + 0: abc + 0+ abcabc + ** Failers +No match + xyz +No match + +/(?=abc)++abc/+ + abcabcabc + 0: abc + 0+ abcabc + ** Failers +No match + xyz +No match + +/(?=abc){0}xyz/ + xyz + 0: xyz + +/(?=abc){1}xyz/ + ** Failers +No match + xyz +No match + +/(?=(a))?./ + ab + 0: a + 1: a + bc + 0: b + +/(?=(a))??./ + ab + 0: a + bc + 0: b + +/^(?=(?1))?[az]([abc])d/ + abd + 0: abd + 1: b + zcdxx + 0: zcd + 1: c + +/^(?!a){0}\w+/ + aaaaa + 0: aaaaa + +/(?<=(abc))?xyz/ + abcxyz + 0: xyz + 1: abc + pqrxyz + 0: xyz + +/^[\g<a>]+/ + ggg<<<aaa>>> + 0: ggg<<<aaa>>> + ** Failers +No match + \\ga +No match + +/^[\ga]+/ + gggagagaxyz + 0: gggagaga + +/^[:a[:digit:]]+/ + aaaa444:::Z + 0: aaaa444::: + +/^[:a[:digit:]:b]+/ + aaaa444:::bbbZ + 0: aaaa444:::bbb + +/[:a]xxx[b:]/ + :xxx: + 0: :xxx: + +/(?<=a{2})b/i + xaabc + 0: b + ** Failers +No match + xabc +No match + +/(?<!a{2})b/i + xabc + 0: b + ** Failers +No match + xaabc +No match + +/(?<=a\h)c/ + xa c + 0: c + +/(?<=[^a]{2})b/ + axxbc + 0: b + aAAbc + 0: b + ** Failers +No match + xaabc +No match + +/(?<=[^a]{2})b/i + axxbc + 0: b + ** Failers +No match + aAAbc +No match + xaabc +No match + +/(?<=a\H)c/ + abc + 0: c + +/(?<=a\V)c/ + abc + 0: c + +/(?<=a\v)c/ + a\nc + 0: c + +/(?(?=c)c|d)++Y/ + XcccddYX + 0: cccddY + +/(?(?=c)c|d)*+Y/ + XcccddYX + 0: cccddY + +/^(a{2,3}){2,}+a/ + aaaaaaa + 0: aaaaaaa + 1: aaa + ** Failers +No match + aaaaaa +No match + aaaaaaaaa +No match + +/^(a{2,3})++a/ + ** Failers +No match + aaaaaa +No match + +/^(a{2,3})*+a/ + ** Failers +No match + aaaaaa +No match + +/ab\Cde/ + abXde + 0: abXde + +/(?<=ab\Cde)X/ + abZdeX + 0: X + +/a[\CD]b/ + aCb + 0: aCb + aDb + 0: aDb + +/a[\C-X]b/ + aJb + 0: aJb + +/\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 + \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 + ** Failers +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 + +/\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 + +/(foo)\Kbar/ + foobar + 0: bar + 1: foo + +/(foo)(\Kbar|baz)/ + foobar + 0: bar + 1: foo + 2: bar + foobaz + 0: foobaz + 1: foo + 2: baz + +/(foo\Kbar)baz/ + foobarbaz + 0: barbaz + 1: foobar + +/abc\K|def\K/g+ + Xabcdefghi + 0: + 0+ defghi + 0: + 0+ ghi + +/ab\Kc|de\Kf/g+ + Xabcdefghi + 0: c + 0+ defghi + 0: f + 0+ ghi + +/(?=C)/g+ + ABCDECBA + 0: + 0+ CDECBA + 0: + 0+ CBA + +/^abc\K/+ + abcdef + 0: + 0+ def + ** Failers +No match + defabcxyz +No match + +/^(a(b))\1\g1\g{1}\g-1\g{-1}\g{-02}Z/ + ababababbbabZXXXX + 0: ababababbbabZ + 1: ab + 2: b + +/(?<A>tom|bon)-\g{A}/ + tom-tom + 0: tom-tom + 1: tom + bon-bon + 0: bon-bon + 1: bon + +/(^(a|b\g{-1}))/ + bacxxx +No match + +/(?|(abc)|(xyz))\1/ + abcabc + 0: abcabc + 1: abc + xyzxyz + 0: xyzxyz + 1: xyz + ** Failers +No match + abcxyz +No match + xyzabc +No match + +/(?|(abc)|(xyz))(?1)/ + abcabc + 0: abcabc + 1: abc + xyzabc + 0: xyzabc + 1: xyz + ** Failers +No match + xyzxyz +No match + +/^X(?5)(a)(?|(b)|(q))(c)(d)(Y)/ + XYabcdY + 0: XYabcdY + 1: a + 2: b + 3: c + 4: d + 5: Y + +/^X(?7)(a)(?|(b|(r)(s))|(q))(c)(d)(Y)/ + XYabcdY + 0: XYabcdY + 1: a + 2: b + 3: <unset> + 4: <unset> + 5: c + 6: d + 7: Y + +/^X(?7)(a)(?|(b|(?|(r)|(t))(s))|(q))(c)(d)(Y)/ + XYabcdY + 0: XYabcdY + 1: a + 2: b + 3: <unset> + 4: <unset> + 5: c + 6: d + 7: Y + +/(?'abc'\w+):\k<abc>{2}/ + a:aaxyz + 0: a:aa + 1: a + ab:ababxyz + 0: ab:abab + 1: ab + ** Failers +No match + a:axyz +No match + ab:abxyz +No match + +/(?'abc'\w+):\g{abc}{2}/ + a:aaxyz + 0: a:aa + 1: a + ab:ababxyz + 0: ab:abab + 1: ab + ** Failers +No match + a:axyz +No match + ab:abxyz +No match + +/^(?<ab>a)? (?(<ab>)b|c) (?('ab')d|e)/x + abd + 0: abd + 1: a + ce + 0: ce + +/^(a.)\g-1Z/ + aXaXZ + 0: aXaXZ + 1: aX + +/^(a.)\g{-1}Z/ + aXaXZ + 0: aXaXZ + 1: aX + +/^(?(DEFINE) (?<A> a) (?<B> b) ) (?&A) (?&B) /x + abcd + 0: ab + +/(?<NAME>(?&NAME_PAT))\s+(?<ADDR>(?&ADDRESS_PAT)) + (?(DEFINE) + (?<NAME_PAT>[a-z]+) + (?<ADDRESS_PAT>\d+) + )/x + metcalfe 33 + 0: metcalfe 33 + 1: metcalfe + 2: 33 + +/(?(DEFINE)(?<byte>2[0-4]\d|25[0-5]|1\d\d|[1-9]?\d))\b(?&byte)(\.(?&byte)){3}/ + 1.2.3.4 + 0: 1.2.3.4 + 1: <unset> + 2: .4 + 131.111.10.206 + 0: 131.111.10.206 + 1: <unset> + 2: .206 + 10.0.0.0 + 0: 10.0.0.0 + 1: <unset> + 2: .0 + ** Failers +No match + 10.6 +No match + 455.3.4.5 +No match + +/\b(?&byte)(\.(?&byte)){3}(?(DEFINE)(?<byte>2[0-4]\d|25[0-5]|1\d\d|[1-9]?\d))/ + 1.2.3.4 + 0: 1.2.3.4 + 1: .4 + 131.111.10.206 + 0: 131.111.10.206 + 1: .206 + 10.0.0.0 + 0: 10.0.0.0 + 1: .0 + ** Failers +No match + 10.6 +No match + 455.3.4.5 +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 + 1: party + *** Failers +No match + this is not a line with only words and spaces! +No match + +/(\d++)(\w)/ + 12345a + 0: 12345a + 1: 12345 + 2: a + *** Failers +No match + 12345+ +No match + +/a++b/ + aaab + 0: aaab + +/(a++b)/ + aaab + 0: aaab + 1: aaab + +/(a++)b/ + aaab + 0: aaab + 1: aaa + +/([^()]++|\([^()]*\))+/ + ((abc(ade)ufh()()x + 0: abc(ade)ufh()()x + 1: x + +/\(([^()]++|\([^()]+\))+\)/ + (abc) + 0: (abc) + 1: abc + (abc(def)xyz) + 0: (abc(def)xyz) + 1: xyz + *** Failers +No match + ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +No match + +/^([^()]|\((?1)*\))*$/ + abc + 0: abc + 1: c + a(b)c + 0: a(b)c + 1: c + a(b(c))d + 0: a(b(c))d + 1: d + *** Failers) +No match + a(b(c)d +No match + +/^>abc>([^()]|\((?1)*\))*<xyz<$/ + >abc>123<xyz< + 0: >abc>123<xyz< + 1: 3 + >abc>1(2)3<xyz< + 0: >abc>1(2)3<xyz< + 1: 3 + >abc>(1(2)3)<xyz< + 0: >abc>(1(2)3)<xyz< + 1: (1(2)3) + +/^(?:((.)(?1)\2|)|((.)(?3)\4|.))$/i + 1221 + 0: 1221 + 1: 1221 + 2: 1 + Satanoscillatemymetallicsonatas + 0: Satanoscillatemymetallicsonatas + 1: <unset> + 2: <unset> + 3: Satanoscillatemymetallicsonatas + 4: S + AmanaplanacanalPanama + 0: AmanaplanacanalPanama + 1: <unset> + 2: <unset> + 3: AmanaplanacanalPanama + 4: A + AblewasIereIsawElba + 0: AblewasIereIsawElba + 1: <unset> + 2: <unset> + 3: AblewasIereIsawElba + 4: A + *** Failers +No match + Thequickbrownfox +No match + +/^(\d+|\((?1)([+*-])(?1)\)|-(?1))$/ + 12 + 0: 12 + 1: 12 + (((2+2)*-3)-7) + 0: (((2+2)*-3)-7) + 1: (((2+2)*-3)-7) + 2: - + -12 + 0: -12 + 1: -12 + *** Failers +No match + ((2+2)*-3)-7) +No match + +/^(x(y|(?1){2})z)/ + xyz + 0: xyz + 1: xyz + 2: y + xxyzxyzz + 0: xxyzxyzz + 1: xxyzxyzz + 2: xyzxyz + *** Failers +No match + xxyzz +No match + xxyzxyzxyzz +No match + +/((< (?: (?(R) \d++ | [^<>]*+) | (?2)) * >))/x + <> + 0: <> + 1: <> + 2: <> + <abcd> + 0: <abcd> + 1: <abcd> + 2: <abcd> + <abc <123> hij> + 0: <abc <123> hij> + 1: <abc <123> hij> + 2: <abc <123> hij> + <abc <def> hij> + 0: <def> + 1: <def> + 2: <def> + <abc<>def> + 0: <abc<>def> + 1: <abc<>def> + 2: <abc<>def> + <abc<> + 0: <> + 1: <> + 2: <> + *** Failers +No match + <abc +No match + +/^a+(*FAIL)/ + aaaaaa +No match + +/a+b?c+(*FAIL)/ + aaabccc +No match + +/a+b?(*PRUNE)c+(*FAIL)/ + aaabccc +No match + +/a+b?(*COMMIT)c+(*FAIL)/ + aaabccc +No match + +/a+b?(*SKIP)c+(*FAIL)/ + aaabcccaaabccc +No match + +/^(?:aaa(*THEN)\w{6}|bbb(*THEN)\w{5}|ccc(*THEN)\w{4}|\w{3})/ + aaaxxxxxx + 0: aaaxxxxxx + aaa++++++ + 0: aaa + bbbxxxxx + 0: bbbxxxxx + bbb+++++ + 0: bbb + cccxxxx + 0: cccxxxx + ccc++++ + 0: ccc + dddddddd + 0: ddd + +/^(aaa(*THEN)\w{6}|bbb(*THEN)\w{5}|ccc(*THEN)\w{4}|\w{3})/ + aaaxxxxxx + 0: aaaxxxxxx + 1: aaaxxxxxx + aaa++++++ + 0: aaa + 1: aaa + bbbxxxxx + 0: bbbxxxxx + 1: bbbxxxxx + bbb+++++ + 0: bbb + 1: bbb + cccxxxx + 0: cccxxxx + 1: cccxxxx + ccc++++ + 0: ccc + 1: ccc + dddddddd + 0: ddd + 1: ddd + +/a+b?(*THEN)c+(*FAIL)/ + aaabccc +No match + +/(A (A|B(*ACCEPT)|C) D)(E)/x + AB + 0: AB + 1: AB + 2: B + ABX + 0: AB + 1: AB + 2: B + AADE + 0: AADE + 1: AAD + 2: A + 3: E + ACDE + 0: ACDE + 1: ACD + 2: C + 3: E + ** Failers +No match + AD +No match + +/^\W*+(?:((.)\W*+(?1)\W*+\2|)|((.)\W*+(?3)\W*+\4|\W*+.\W*+))\W*+$/i + 1221 + 0: 1221 + 1: 1221 + 2: 1 + Satan, oscillate my metallic sonatas! + 0: Satan, oscillate my metallic sonatas! + 1: <unset> + 2: <unset> + 3: Satan, oscillate my metallic sonatas + 4: S + A man, a plan, a canal: Panama! + 0: A man, a plan, a canal: Panama! + 1: <unset> + 2: <unset> + 3: A man, a plan, a canal: Panama + 4: A + Able was I ere I saw Elba. + 0: Able was I ere I saw Elba. + 1: <unset> + 2: <unset> + 3: Able was I ere I saw Elba + 4: A + *** Failers +No match + The quick brown fox +No match + +/^((.)(?1)\2|.)$/ + a + 0: a + 1: a + aba + 0: aba + 1: aba + 2: a + aabaa + 0: aabaa + 1: aabaa + 2: a + abcdcba + 0: abcdcba + 1: abcdcba + 2: a + pqaabaaqp + 0: pqaabaaqp + 1: pqaabaaqp + 2: p + ablewasiereisawelba + 0: ablewasiereisawelba + 1: ablewasiereisawelba + 2: a + rhubarb +No match + the quick brown fox +No match + +/(a)(?<=b(?1))/ + baz + 0: a + 1: a + ** Failers +No match + caz +No match + +/(?<=b(?1))(a)/ + zbaaz + 0: a + 1: a + ** Failers +No match + aaa +No match + +/(?<X>a)(?<=b(?&X))/ + baz + 0: a + 1: a + +/^(?|(abc)|(def))\1/ + abcabc + 0: abcabc + 1: abc + defdef + 0: defdef + 1: def + ** Failers +No match + abcdef +No match + defabc +No match + +/^(?|(abc)|(def))(?1)/ + abcabc + 0: abcabc + 1: abc + defabc + 0: defabc + 1: def + ** Failers +No match + defdef +No match + abcdef +No match + +/(?:a(?<quote> (?<apostrophe>')|(?<realquote>")) |b(?<quote> (?<apostrophe>')|(?<realquote>")) ) (?('quote')[a-z]+|[0-9]+)/xJ + a\"aaaaa + 0: a"aaaaa + 1: " + 2: <unset> + 3: " + b\"aaaaa + 0: b"aaaaa + 1: <unset> + 2: <unset> + 3: <unset> + 4: " + 5: <unset> + 6: " + ** Failers +No match + b\"11111 +No match + +/(?:(?1)|B)(A(*F)|C)/ + ABCD + 0: BC + 1: C + CCD + 0: CC + 1: C + ** Failers +No match + CAD +No match + +/^(?:(?1)|B)(A(*F)|C)/ + CCD + 0: CC + 1: C + BCD + 0: BC + 1: C + ** Failers +No match + ABCD +No match + CAD +No match + BAD +No match + +/(?:(?1)|B)(A(*ACCEPT)XX|C)D/ + AAD + 0: AA + 1: A + ACD + 0: ACD + 1: C + BAD + 0: BA + 1: A + BCD + 0: BCD + 1: C + BAX + 0: BA + 1: A + ** Failers +No match + ACX +No match + ABC +No match + +/(?(DEFINE)(A))B(?1)C/ + BAC + 0: BAC + +/(?(DEFINE)((A)\2))B(?1)C/ + BAAC + 0: BAAC + +/(?<pn> \( ( [^()]++ | (?&pn) )* \) )/x + (ab(cd)ef) + 0: (ab(cd)ef) + 1: (ab(cd)ef) + 2: ef + +/^(?=a(*SKIP)b|ac)/ + ** Failers +No match + ac +No match + +/^(?=a(*PRUNE)b)/ + ab + 0: + ** Failers +No match + ac +No match + +/^(?=a(*ACCEPT)b)/ + ac + 0: + +/(?>a\Kb)/ + ab + 0: b + +/((?>a\Kb))/ + ab + 0: b + 1: ab + +/(a\Kb)/ + ab + 0: b + 1: ab + +/^a\Kcz|ac/ + ac + 0: ac + +/(?>a\Kbz|ab)/ + ab + 0: ab + +/^(?&t)(?(DEFINE)(?<t>a\Kb))$/ + ab + 0: b + +/^([^()]|\((?1)*\))*$/ + a(b)c + 0: a(b)c + 1: c + a(b(c)d)e + 0: a(b(c)d)e + 1: e + +/(?P<L1>(?P<L2>0)(?P>L1)|(?P>L2))/ + 0 + 0: 0 + 1: 0 + 00 + 0: 00 + 1: 00 + 2: 0 + 0000 + 0: 0000 + 1: 0000 + 2: 0 + +/(?P<L1>(?P<L2>0)|(?P>L2)(?P>L1))/ + 0 + 0: 0 + 1: 0 + 2: 0 + 00 + 0: 0 + 1: 0 + 2: 0 + 0000 + 0: 0 + 1: 0 + 2: 0 + +/--- This one does fail, as expected, in Perl. It needs the complex item at the + end of the pattern. A single letter instead of (B|D) makes it not fail, + which I think is a Perl bug. --- / + +/A(*COMMIT)(B|D)/ + ACABX +No match + +/--- Check the use of names for failure ---/ + +/^(A(*PRUNE:A)B|C(*PRUNE:B)D)/K + ** Failers +No match + AC +No match, mark = A + CB +No match, mark = B + +/--- Force no study, otherwise mark is not seen. The studied version is in + test 2 because it isn't Perl-compatible. ---/ + +/(*MARK:A)(*SKIP:B)(C|X)/KSS + C + 0: C + 1: C +MK: A + D +No match, mark = A + +/^(A(*THEN:A)B|C(*THEN:B)D)/K + ** Failers +No match + CB +No match, mark = B + +/^(?:A(*THEN:A)B|C(*THEN:B)D)/K + CB +No match, mark = B + +/^(?>A(*THEN:A)B|C(*THEN:B)D)/K + CB +No match, mark = B + +/--- This should succeed, as the skip causes bump to offset 1 (the mark). Note +that we have to have something complicated such as (B|Z) at the end because, +for Perl, a simple character somehow causes an unwanted optimization to mess +with the handling of backtracking verbs. ---/ + +/A(*MARK:A)A+(*SKIP:A)(B|Z) | AC/xK + AAAC + 0: AC + +/--- Test skipping over a non-matching mark. ---/ + +/A(*MARK:A)A+(*MARK:B)(*SKIP:A)(B|Z) | AC/xK + AAAC + 0: AC + +/--- Check shorthand for MARK ---/ + +/A(*:A)A+(*SKIP:A)(B|Z) | AC/xK + AAAC + 0: AC + +/--- Don't loop! Force no study, otherwise mark is not seen. ---/ + +/(*:A)A+(*SKIP:A)(B|Z)/KSS + AAAC +No match, mark = A + +/--- This should succeed, as a non-existent skip name disables the skip ---/ + +/A(*MARK:A)A+(*SKIP:B)(B|Z) | AC/xK + AAAC + 0: AC + +/A(*MARK:A)A+(*SKIP:B)(B|Z) | AC(*:B)/xK + AAAC + 0: AC +MK: B + +/--- COMMIT at the start of a pattern should act like an anchor. Again, +however, we need the complication for Perl. ---/ + +/(*COMMIT)(A|P)(B|P)(C|P)/ + ABCDEFG + 0: ABC + 1: A + 2: B + 3: C + ** Failers +No match + DEFGABC +No match + +/--- COMMIT inside an atomic group can't stop backtracking over the group. ---/ + +/(\w+)(?>b(*COMMIT))\w{2}/ + abbb + 0: abbb + 1: a + +/(\w+)b(*COMMIT)\w{2}/ + abbb +No match + +/--- Check opening parens in comment when seeking forward reference. ---/ + +/(?&t)(?#()(?(DEFINE)(?<t>a))/ + bac + 0: a + +/--- COMMIT should override THEN ---/ + +/(?>(*COMMIT)(?>yes|no)(*THEN)(*F))?/ + yes +No match + +/(?>(*COMMIT)(yes|no)(*THEN)(*F))?/ + yes +No match + +/b?(*SKIP)c/ + bc + 0: bc + abc + 0: bc + +/(*SKIP)bc/ + a +No match + +/(*SKIP)b/ + a +No match + +/(?P<abn>(?P=abn)xxx|)+/ + xxx + 0: + 1: + +/(?i:([^b]))(?1)/ + aa + 0: aa + 1: a + aA + 0: aA + 1: a + ** Failers + 0: ** + 1: * + ab +No match + aB +No match + Ba +No match + ba +No match + +/^(?&t)*+(?(DEFINE)(?<t>a))\w$/ + aaaaaaX + 0: aaaaaaX + ** Failers +No match + aaaaaa +No match + +/^(?&t)*(?(DEFINE)(?<t>a))\w$/ + aaaaaaX + 0: aaaaaaX + aaaaaa + 0: aaaaaa + +/^(a)*+(\w)/ + aaaaX + 0: aaaaX + 1: a + 2: X + YZ + 0: Y + 1: <unset> + 2: Y + ** Failers +No match + aaaa +No match + +/^(?:a)*+(\w)/ + aaaaX + 0: aaaaX + 1: X + YZ + 0: Y + 1: Y + ** Failers +No match + aaaa +No match + +/^(a)++(\w)/ + aaaaX + 0: aaaaX + 1: a + 2: X + ** Failers +No match + aaaa +No match + YZ +No match + +/^(?:a)++(\w)/ + aaaaX + 0: aaaaX + 1: X + ** Failers +No match + aaaa +No match + YZ +No match + +/^(a)?+(\w)/ + aaaaX + 0: aa + 1: a + 2: a + YZ + 0: Y + 1: <unset> + 2: Y + +/^(?:a)?+(\w)/ + aaaaX + 0: aa + 1: a + YZ + 0: Y + 1: Y + +/^(a){2,}+(\w)/ + aaaaX + 0: aaaaX + 1: a + 2: X + ** Failers +No match + aaa +No match + YZ +No match + +/^(?:a){2,}+(\w)/ + aaaaX + 0: aaaaX + 1: X + ** Failers +No match + aaa +No match + YZ +No match + +/(a|)*(?1)b/ + b + 0: b + 1: + ab + 0: ab + 1: + aab + 0: aab + 1: + +/(a)++(?1)b/ + ** Failers +No match + ab +No match + aab +No match + +/(a)*+(?1)b/ + ** Failers +No match + ab +No match + aab +No match + +/(?1)(?:(b)){0}/ + b + 0: b + +/(foo ( \( ((?:(?> [^()]+ )|(?2))*) \) ) )/x + foo(bar(baz)+baz(bop)) + 0: foo(bar(baz)+baz(bop)) + 1: foo(bar(baz)+baz(bop)) + 2: (bar(baz)+baz(bop)) + 3: bar(baz)+baz(bop) + +/(A (A|B(*ACCEPT)|C) D)(E)/x + AB + 0: AB + 1: AB + 2: B + +/\A.*?(a|bc)/ + ba + 0: ba + 1: a + +/\A.*?(?:a|bc)++/ + ba + 0: ba + +/\A.*?(a|bc)++/ + ba + 0: ba + 1: a + +/\A.*?(?:a|bc|d)/ + ba + 0: ba + +/(?:(b))++/ + beetle + 0: b + 1: b + +/(?(?=(a(*ACCEPT)z))a)/ + a + 0: a + 1: a + +/^(a)(?1)+ab/ + aaaab + 0: aaaab + 1: a + +/^(a)(?1)++ab/ + aaaab +No match + +/^(?=a(*:M))aZ/K + aZbc + 0: aZ +MK: M + +/^(?!(*:M)b)aZ/K + aZbc + 0: aZ + +/(?(DEFINE)(a))?b(?1)/ + backgammon + 0: ba + +/^\N+/ + abc\ndef + 0: abc + +/^\N{1,}/ + abc\ndef + 0: abc + +/(?(R)a+|(?R)b)/ + aaaabcde + 0: aaaab + +/(?(R)a+|((?R))b)/ + aaaabcde + 0: aaaab + 1: aaaa + +/((?(R)a+|(?1)b))/ + aaaabcde + 0: aaaab + 1: aaaab + +/((?(R1)a+|(?1)b))/ + aaaabcde + 0: aaaab + 1: aaaab + +/a(*:any +name)/K + abc + 0: a +MK: any \x0aname + +/(?>(?&t)c|(?&t))(?(DEFINE)(?<t>a|b(*PRUNE)c))/ + a + 0: a + ba + 0: a + bba + 0: a + +/--- Checking revised (*THEN) handling ---/ + +/--- Capture ---/ + +/^.*? (a(*THEN)b) c/x + aabc +No match + +/^.*? (a(*THEN)b|(*F)) c/x + aabc + 0: aabc + 1: ab + +/^.*? ( (a(*THEN)b) | (*F) ) c/x + aabc + 0: aabc + 1: ab + 2: ab + +/^.*? ( (a(*THEN)b) ) c/x + aabc +No match + +/--- Non-capture ---/ + +/^.*? (?:a(*THEN)b) c/x + aabc +No match + +/^.*? (?:a(*THEN)b|(*F)) c/x + aabc + 0: aabc + +/^.*? (?: (?:a(*THEN)b) | (*F) ) c/x + aabc + 0: aabc + +/^.*? (?: (?:a(*THEN)b) ) c/x + aabc +No match + +/--- Atomic ---/ + +/^.*? (?>a(*THEN)b) c/x + aabc +No match + +/^.*? (?>a(*THEN)b|(*F)) c/x + aabc + 0: aabc + +/^.*? (?> (?>a(*THEN)b) | (*F) ) c/x + aabc + 0: aabc + +/^.*? (?> (?>a(*THEN)b) ) c/x + aabc +No match + +/--- Possessive capture ---/ + +/^.*? (a(*THEN)b)++ c/x + aabc +No match + +/^.*? (a(*THEN)b|(*F))++ c/x + aabc + 0: aabc + 1: ab + +/^.*? ( (a(*THEN)b)++ | (*F) )++ c/x + aabc + 0: aabc + 1: ab + 2: ab + +/^.*? ( (a(*THEN)b)++ )++ c/x + aabc +No match + +/--- Possessive non-capture ---/ + +/^.*? (?:a(*THEN)b)++ c/x + aabc +No match + +/^.*? (?:a(*THEN)b|(*F))++ c/x + aabc + 0: aabc + +/^.*? (?: (?:a(*THEN)b)++ | (*F) )++ c/x + aabc + 0: aabc + +/^.*? (?: (?:a(*THEN)b)++ )++ c/x + aabc +No match + +/--- Condition assertion ---/ + +/^(?(?=a(*THEN)b)ab|ac)/ + ac + 0: ac + +/--- Condition ---/ + +/^.*?(?(?=a)a|b(*THEN)c)/ + ba +No match + +/^.*?(?:(?(?=a)a|b(*THEN)c)|d)/ + ba + 0: ba + +/^.*?(?(?=a)a(*THEN)b|c)/ + ac +No match + +/--- Assertion ---/ + +/^.*(?=a(*THEN)b)/ + aabc + 0: a + +/------------------------------/ + +/(?>a(*:m))/imsxSK + a + 0: a +MK: m + +/(?>(a)(*:m))/imsxSK + a + 0: a + 1: a +MK: m + +/(?<=a(*ACCEPT)b)c/ + xacd + 0: c + +/(?<=(a(*ACCEPT)b))c/ + xacd + 0: c + 1: a + +/(?<=(a(*COMMIT)b))c/ + xabcd + 0: c + 1: ab + ** Failers +No match + xacd +No match + +/(?<!a(*FAIL)b)c/ + xcd + 0: c + acd + 0: c + +/(?<=a(*:N)b)c/K + xabcd + 0: c +MK: N + +/(?<=a(*PRUNE)b)c/ + xabcd + 0: c + +/(?<=a(*SKIP)b)c/ + xabcd + 0: c + +/(?<=a(*THEN)b)c/ + xabcd + 0: c + +/(a)(?2){2}(.)/ + abcd + 0: abcd + 1: a + 2: d + +/(*MARK:A)(*PRUNE:B)(C|X)/KS + C + 0: C + 1: C +MK: B + D +No match, mark = B + +/(*MARK:A)(*PRUNE:B)(C|X)/KSS + C + 0: C + 1: C +MK: B + D +No match, mark = B + +/(*MARK:A)(*THEN:B)(C|X)/KS + C + 0: C + 1: C +MK: B + D +No match, mark = B + +/(*MARK:A)(*THEN:B)(C|X)/KSY + C + 0: C + 1: C +MK: B + D +No match, mark = B + +/(*MARK:A)(*THEN:B)(C|X)/KSS + C + 0: C + 1: C +MK: B + D +No match, mark = B + +/--- This should fail, as the skip causes a bump to offset 3 (the skip) ---/ + +/A(*MARK:A)A+(*SKIP)(B|Z) | AC/xK + AAAC +No match, mark = A + +/--- Same --/ + +/A(*MARK:A)A+(*MARK:B)(*SKIP:B)(B|Z) | AC/xK + AAAC +No match, mark = B + +/A(*:A)A+(*SKIP)(B|Z) | AC/xK + AAAC +No match, mark = A + +/--- This should fail, as a null name is the same as no name ---/ + +/A(*MARK:A)A+(*SKIP:)(B|Z) | AC/xK + AAAC +No match, mark = A + +/--- A check on what happens after hitting a mark and them bumping along to +something that does not even start. Perl reports tags after the failures here, +though it does not when the individual letters are made into something +more complicated. ---/ + +/A(*:A)B|XX(*:B)Y/K + AABC + 0: AB +MK: A + XXYZ + 0: XXY +MK: B + ** Failers +No match + XAQQ +No match, mark = A + XAQQXZZ +No match, mark = A + AXQQQ +No match, mark = A + AXXQQQ +No match, mark = B + +/^(A(*THEN:A)B|C(*THEN:B)D)/K + AB + 0: AB + 1: AB +MK: A + CD + 0: CD + 1: CD +MK: B + ** Failers +No match + AC +No match, mark = A + CB +No match, mark = B + +/^(A(*PRUNE:A)B|C(*PRUNE:B)D)/K + AB + 0: AB + 1: AB +MK: A + CD + 0: CD + 1: CD +MK: B + ** Failers +No match + AC +No match, mark = A + CB +No match, mark = B + +/--- An empty name does not pass back an empty string. It is the same as if no +name were given. ---/ + +/^(A(*PRUNE:)B|C(*PRUNE:B)D)/K + AB + 0: AB + 1: AB + CD + 0: CD + 1: CD +MK: B + +/--- PRUNE goes to next bumpalong; COMMIT does not. ---/ + +/A(*PRUNE:A)B/K + ACAB + 0: AB +MK: A + +/--- Mark names can be duplicated ---/ + +/A(*:A)B|X(*:A)Y/K + AABC + 0: AB +MK: A + XXYZ + 0: XY +MK: A + +/b(*:m)f|a(*:n)w/K + aw + 0: aw +MK: n + ** Failers +No match, mark = n + abc +No match, mark = m + +/b(*:m)f|aw/K + abaw + 0: aw + ** Failers +No match + abc +No match, mark = m + abax +No match, mark = m + +/A(*MARK:A)A+(*SKIP:B)(B|Z) | AAC/xK + AAAC + 0: AAC + +/a(*PRUNE:X)bc|qq/KY + ** Failers +No match, mark = X + axy +No match, mark = X + +/a(*THEN:X)bc|qq/KY + ** Failers +No match, mark = X + axy +No match, mark = X + +/(?=a(*MARK:A)b)..x/K + abxy + 0: abx +MK: A + ** Failers +No match + abpq +No match + +/(?=a(*MARK:A)b)..(*:Y)x/K + abxy + 0: abx +MK: Y + ** Failers +No match + abpq +No match + +/(?=a(*PRUNE:A)b)..x/K + abxy + 0: abx +MK: A + ** Failers +No match + abpq +No match + +/(?=a(*PRUNE:A)b)..(*:Y)x/K + abxy + 0: abx +MK: Y + ** Failers +No match + abpq +No match + +/(?=a(*THEN:A)b)..x/K + abxy + 0: abx +MK: A + ** Failers +No match + abpq +No match + +/(?=a(*THEN:A)b)..(*:Y)x/K + abxy + 0: abx +MK: Y + ** Failers +No match + abpq +No match + +/(another)?(\1?)test/ + hello world test + 0: test + 1: <unset> + 2: + +/(another)?(\1+)test/ + hello world test +No match + +/(a(*COMMIT)b){0}a(?1)|aac/ + aac + 0: aac + +/((?:a?)*)*c/ + aac + 0: aac + 1: + +/((?>a?)*)*c/ + aac + 0: aac + 1: + +/(?>.*?a)(?<=ba)/ + aba + 0: ba + +/(?:.*?a)(?<=ba)/ + aba + 0: aba + +/.*?a(*PRUNE)b/ + aab + 0: ab + +/.*?a(*PRUNE)b/s + aab + 0: ab + +/^a(*PRUNE)b/s + aab +No match + +/.*?a(*SKIP)b/ + aab + 0: ab + +/(?>.*?a)b/s + aab + 0: ab + +/(?>.*?a)b/ + aab + 0: ab + +/(?>^a)b/s + aab +No match + +/(?>.*?)(?<=(abcd)|(wxyz))/ + alphabetabcd + 0: + 1: abcd + endingwxyz + 0: + 1: <unset> + 2: wxyz + +/(?>.*)(?<=(abcd)|(wxyz))/ + alphabetabcd + 0: alphabetabcd + 1: abcd + endingwxyz + 0: endingwxyz + 1: <unset> + 2: wxyz + +"(?>.*)foo" + abcdfooxyz +No match + +"(?>.*?)foo" + abcdfooxyz + 0: foo + +/(?:(a(*PRUNE)b)){0}(?:(?1)|ac)/ + ac + 0: ac + +/(?:(a(*SKIP)b)){0}(?:(?1)|ac)/ + ac + 0: ac + +/(?<=(*SKIP)ac)a/ + aa +No match + +/A(*MARK:A)A+(*SKIP:B)(B|Z) | AC/xK + AAAC + 0: AC + +/a(*SKIP:m)x|ac(*:n)(*SKIP:n)d|ac/K + acacd + 0: acd +MK: n + +/A(*SKIP:m)x|A(*SKIP:n)x|AB/K + AB + 0: AB + +/((*SKIP:r)d){0}a(*SKIP:m)x|ac(*:n)|ac/K + acacd + 0: ac +MK: n + +/-- Tests that try to figure out how Perl works. My hypothesis is that the + first verb that is backtracked onto is the one that acts. This seems to be + the case almost all the time, but there is one exception that is perhaps a + bug. --/ + +/-- This matches "aaaac"; each PRUNE advances one character until the subject + no longer starts with 5 'a's. --/ + +/aaaaa(*PRUNE)b|a+c/ + aaaaaac + 0: aaaac + +/-- Putting SKIP in front of PRUNE makes no difference, as it is never +backtracked onto, whether or not it has a label. --/ + +/aaaaa(*SKIP)(*PRUNE)b|a+c/ + aaaaaac + 0: aaaac + +/aaaaa(*SKIP:N)(*PRUNE)b|a+c/ + aaaaaac + 0: aaaac + +/aaaa(*:N)a(*SKIP:N)(*PRUNE)b|a+c/ + aaaaaac + 0: aaaac + +/-- Putting THEN in front makes no difference. */ + +/aaaaa(*THEN)(*PRUNE)b|a+c/ + aaaaaac + 0: aaaac + +/-- However, putting COMMIT in front of the prune changes it to "no match". I + think this is inconsistent and possibly a bug. For the moment, running this + test is moved out of the Perl-compatible file. --/ + +/aaaaa(*COMMIT)(*PRUNE)b|a+c/ + + +/---- OK, lets play the same game again using SKIP instead of PRUNE. ----/ + +/-- This matches "ac" because SKIP forces the next match to start on the + sixth "a". --/ + +/aaaaa(*SKIP)b|a+c/ + aaaaaac + 0: ac + +/-- Putting PRUNE in front makes no difference. --/ + +/aaaaa(*PRUNE)(*SKIP)b|a+c/ + aaaaaac + 0: ac + +/-- Putting THEN in front makes no difference. --/ + +/aaaaa(*THEN)(*SKIP)b|a+c/ + aaaaaac + 0: ac + +/-- In this case, neither does COMMIT. This still matches "ac". --/ + +/aaaaa(*COMMIT)(*SKIP)b|a+c/ + aaaaaac + 0: ac + +/-- This gives "no match", as expected. --/ + +/aaaaa(*COMMIT)b|a+c/ + aaaaaac +No match + + +/------ Tests using THEN ------/ + +/-- This matches "aaaaaac", as expected. --/ + +/aaaaa(*THEN)b|a+c/ + aaaaaac + 0: aaaaaac + +/-- Putting SKIP in front makes no difference. --/ + +/aaaaa(*SKIP)(*THEN)b|a+c/ + aaaaaac + 0: aaaaaac + +/-- Putting PRUNE in front makes no difference. --/ + +/aaaaa(*PRUNE)(*THEN)b|a+c/ + aaaaaac + 0: aaaaaac + +/-- Putting COMMIT in front makes no difference. --/ + +/aaaaa(*COMMIT)(*THEN)b|a+c/ + aaaaaac + 0: aaaaaac + +/-- End of "priority" tests --/ + +/aaaaa(*:m)(*PRUNE:m)(*SKIP:m)m|a+/ + aaaaaa + 0: a + +/aaaaa(*:m)(*MARK:m)(*PRUNE)(*SKIP:m)m|a+/ + aaaaaa + 0: a + +/aaaaa(*:n)(*PRUNE:m)(*SKIP:m)m|a+/ + aaaaaa + 0: aaaa + +/aaaaa(*:n)(*MARK:m)(*PRUNE)(*SKIP:m)m|a+/ + aaaaaa + 0: a + +/a(*MARK:A)aa(*PRUNE:A)a(*SKIP:A)b|a+c/ + aaaac + 0: aac + +/a(*MARK:A)aa(*MARK:A)a(*SKIP:A)b|a+c/ + aaaac + 0: ac + +/aaa(*PRUNE:A)a(*SKIP:A)b|a+c/ + aaaac + 0: aac + +/aaa(*MARK:A)a(*SKIP:A)b|a+c/ + aaaac + 0: ac + +/a(*:m)a(*COMMIT)(*SKIP:m)b|a+c/K + aaaaaac + 0: ac + +/.?(a|b(*THEN)c)/ + ba + 0: ba + 1: a + +/(a(*COMMIT)b)c|abd/ + abc + 0: abc + 1: ab + abd +No match + +/(?=a(*COMMIT)b)abc|abd/ + abc + 0: abc + abd + 0: abd + +/(?>a(*COMMIT)b)c|abd/ + abc + 0: abc + abd + 0: abd + +/a(?=b(*COMMIT)c)[^d]|abd/ + abd +No match + abc + 0: ab + +/a(?=bc).|abd/ + abd + 0: abd + abc + 0: ab + +/a(?>b(*COMMIT)c)d|abd/ + abceabd +No match + +/a(?>bc)d|abd/ + abceabd + 0: abd + +/(?>a(*COMMIT)b)c|abd/ + abd + 0: abd + +/(?>a(*COMMIT)c)d|abd/ + abd +No match + +/((?=a(*COMMIT)b)ab|ac){0}(?:(?1)|a(c))/ + ac + 0: ac + 1: <unset> + 2: c + +/-- These tests were formerly in test 2, but changes in PCRE and Perl have + made them compatible. --/ + +/^(a)?(?(1)a|b)+$/ + *** Failers +No match + a +No match + +/(?=a\Kb)ab/ + ab + 0: b + +/(?!a\Kb)ac/ + ac + 0: ac + +/^abc(?<=b\Kc)d/ + abcd + 0: cd + +/^abc(?<!b\Kq)d/ + abcd + 0: abcd + + +/A(*PRUNE:A)A+(*SKIP:A)(B|Z) | AC/xK + AAAC +No match, mark = A + +/^((abc|abcx)(*THEN)y|abcd)/ + abcd + 0: abcd + 1: abcd + *** Failers +No match + abcxy +No match + +/^((yes|no)(*THEN)(*F))?/ + yes +No match + +/(A (.*) C? (*THEN) | A D) (*FAIL)/x +AbcdCBefgBhiBqz +No match + +/(A (.*) C? (*THEN) | A D) z/x +AbcdCBefgBhiBqz +No match + +/(A (.*) C? (*THEN) | A D) \s* (*FAIL)/x +AbcdCBefgBhiBqz +No match + +/(A (.*) C? (*THEN) | A D) \s* z/x +AbcdCBefgBhiBqz +No match + +/(A (.*) (?:C|) (*THEN) | A D) (*FAIL)/x +AbcdCBefgBhiBqz +No match + +/(A (.*) (?:C|) (*THEN) | A D) z/x +AbcdCBefgBhiBqz +No match + +/(A (.*) C{0,6} (*THEN) | A D) (*FAIL)/x +AbcdCBefgBhiBqz +No match + +/(A (.*) C{0,6} (*THEN) | A D) z/x +AbcdCBefgBhiBqz +No match + +/(A (.*) (CE){0,6} (*THEN) | A D) (*FAIL)/x +AbcdCEBefgBhiBqz +No match + +/(A (.*) (CE){0,6} (*THEN) | A D) z/x +AbcdCEBefgBhiBqz +No match + +/(A (.*) (CE*){0,6} (*THEN) | A D) (*FAIL)/x +AbcdCBefgBhiBqz +No match + +/(A (.*) (CE*){0,6} (*THEN) | A D) z/x +AbcdCBefgBhiBqz +No match + +/(?=a(*COMMIT)b|ac)ac|ac/ + ac +No match + +/(?=a(*COMMIT)b|(ac)) ac | (a)c/x + ac +No match + +/--------/ + +/(?(?!b(*THEN)a)bn|bnn)/ + bnn + 0: bn + +/(?!b(*SKIP)a)bn|bnn/ + bnn + 0: bn + +/(?(?!b(*SKIP)a)bn|bnn)/ + bnn + 0: bn + +/(?!b(*PRUNE)a)bn|bnn/ + bnn + 0: bn + +/(?(?!b(*PRUNE)a)bn|bnn)/ + bnn + 0: bn + +/(?!b(*COMMIT)a)bn|bnn/ + bnn + 0: bn + +/(?(?!b(*COMMIT)a)bn|bnn)/ + bnn + 0: bn + +/(?=b(*SKIP)a)bn|bnn/ + bnn +No match + +/(?=b(*THEN)a)bn|bnn/ + bnn + 0: bnn + + /^(?!a(*SKIP)b)/ + ac + 0: + + /^(?!a(*SKIP)b)../ + acd + 0: ac + +/(?!a(*SKIP)b)../ + acd + 0: ac + +/^(?(?!a(*SKIP)b))/ + ac + 0: + +/^(?!a(*PRUNE)b)../ + acd + 0: ac + +/(?!a(*PRUNE)b)../ + acd + 0: ac + + /(?!a(*COMMIT)b)ac|cd/ + ac + 0: ac + +/\A.*?(?:a|bc)/ + ba + 0: ba + +/^(A(*THEN)B|C(*THEN)D)/ + CD + 0: CD + 1: CD + +/(*:m(m)(?&y)(?(DEFINE)(?<y>b))/K + abc + 0: b +MK: m(m + +/(*PRUNE:m(m)(?&y)(?(DEFINE)(?<y>b))/K + abc + 0: b +MK: m(m + +/(*SKIP:m(m)(?&y)(?(DEFINE)(?<y>b))/K + abc + 0: b + +/(*THEN:m(m)(?&y)(?(DEFINE)(?<y>b))/K + abc + 0: b +MK: m(m + +/^\d*\w{4}/ + 1234 + 0: 1234 + 123 +No match + +/^[^b]*\w{4}/ + aaaa + 0: aaaa + aaa +No match + +/^[^b]*\w{4}/i + aaaa + 0: aaaa + aaa +No match + +/^a*\w{4}/ + aaaa + 0: aaaa + aaa +No match + +/^a*\w{4}/i + aaaa + 0: aaaa + aaa +No match + +/(?(?=ab)ab)/+ + ca + 0: + 0+ ca + cd + 0: + 0+ cd + +/(?:(?<n>foo)|(?<n>bar))\k<n>/J + foofoo + 0: foofoo + 1: foo + barbar + 0: barbar + 1: <unset> + 2: bar + +/(?<n>A)(?:(?<n>foo)|(?<n>bar))\k<n>/J + AfooA + 0: AfooA + 1: A + 2: foo + AbarA + 0: AbarA + 1: A + 2: <unset> + 3: bar + ** Failers +No match + Afoofoo +No match + Abarbar +No match + +/^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/ + 1 IN SOA non-sp1 non-sp2( + 0: 1 IN SOA non-sp1 non-sp2( + 1: 1 + 2: non-sp1 + 3: non-sp2 + +/^ (?:(?<A>A)|(?'B'B)(?<A>A)) (?('A')x) (?(<B>)y)$/xJ + Ax + 0: Ax + 1: A + BAxy + 0: BAxy + 1: <unset> + 2: B + 3: A + +/^A\xZ/ + A\0Z + 0: A\x00Z + +/^A\o{123}B/ + A\123B + 0: ASB + +/ ^ a + + b $ /x + aaaab + 0: aaaab + +/ ^ a + #comment + + b $ /x + aaaab + 0: aaaab + +/ ^ a + #comment + #comment + + b $ /x + aaaab + 0: aaaab + +/ ^ (?> a + ) b $ /x + aaaab + 0: aaaab + +/ ^ ( a + ) + + \w $ /x + aaaab + 0: aaaab + 1: aaaa + +/(?:a\Kb)*+/+ + ababc + 0: b + 0+ c + +/(?>a\Kb)*/+ + ababc + 0: b + 0+ c + +/(?:a\Kb)*/+ + ababc + 0: b + 0+ c + +/(a\Kb)*+/+ + ababc + 0: b + 0+ c + 1: ab + +/(a\Kb)*/+ + ababc + 0: b + 0+ c + 1: ab + +/-- End of testinput1 --/ |