/-- This set of tests is not Perl-compatible. It checks on special features
of PCRE's API, error diagnostics, and the compiled code of some patterns.
It also checks the non-Perl syntax the PCRE supports (Python, .NET,
Oniguruma). Finally, there are some tests where PCRE and Perl differ,
either because PCRE can't be compatible, or there is a possible Perl
bug. --/
/-- Originally, the Perl >= 5.10 things were in here too, but now I have
separated many (most?) of them out into test 11. However, there may still
be some that were overlooked. --/
/(a)b|/I
/abc/I
abc
defabc
\Aabc
*** Failers
\Adefabc
ABC
/^abc/I
abc
\Aabc
*** Failers
defabc
\Adefabc
/a+bc/I
/a*bc/I
/a{3}bc/I
/(abc|a+z)/I
/^abc$/I
abc
*** Failers
def\nabc
/ab\idef/X
/(?X)ab\idef/X
/x{5,4}/
/z{65536}/
/[abcd/
/(?X)[\B]/
/(?X)[\R]/
/(?X)[\X]/
/[\B]/BZ
/[\R]/BZ
/[\X]/BZ
/[z-a]/
/^*/
/(abc/
/(?# abc/
/(?z)abc/
/.*b/I
/.*?b/I
/cat|dog|elephant/I
this sentence eventually mentions a cat
this sentences rambles on and on for a while and then reaches elephant
/cat|dog|elephant/IS
this sentence eventually mentions a cat
this sentences rambles on and on for a while and then reaches elephant
/cat|dog|elephant/IiS
this sentence eventually mentions a CAT cat
this sentences rambles on and on for a while to elephant ElePhant
/a|[bcd]/IS
/(a|[^\dZ])/IS
/(a|b)*[\s]/IS
/(ab\2)/
/{4,5}abc/
/(a)(b)(c)\2/I
abcb
\O0abcb
\O3abcb
\O6abcb
\O9abcb
\O12abcb
/(a)bc|(a)(b)\2/I
abc
\O0abc
\O3abc
\O6abc
aba
\O0aba
\O3aba
\O6aba
\O9aba
\O12aba
/abc$/IE
abc
*** Failers
abc\n
abc\ndef
/(a)(b)(c)(d)(e)\6/
/the quick brown fox/I
the quick brown fox
this is a line with the quick brown fox
/the quick brown fox/IA
the quick brown fox
*** Failers
this is a line with the quick brown fox
/ab(?z)cd/
/^abc|def/I
abcdef
abcdef\B
/.*((abc)$|(def))/I
defabc
\Zdefabc
/abc/P
abc
*** Failers
/^abc|def/P
abcdef
abcdef\B
/.*((abc)$|(def))/P
defabc
\Zdefabc
/the quick brown fox/P
the quick brown fox
*** Failers
The Quick Brown Fox
/the quick brown fox/Pi
the quick brown fox
The Quick Brown Fox
/abc.def/P
*** Failers
abc\ndef
/abc$/P
abc
abc\n
/(abc)\2/P
/(abc\1)/P
abc
/)/
/a[]b/
/[^aeiou ]{3,}/I
co-processors, and for
/<.*>/I
abc<def>ghi<klm>nop
/<.*?>/I
abc<def>ghi<klm>nop
/<.*>/IU
abc<def>ghi<klm>nop
/(?U)<.*>/I
abc<def>ghi<klm>nop
/<.*?>/IU
abc<def>ghi<klm>nop
/={3,}/IU
abc========def
/(?U)={3,}?/I
abc========def
/(?<!bar|cattle)foo/I
foo
catfoo
*** Failers
the barfoo
and cattlefoo
/(?<=a+)b/
/(?<=aaa|b{0,3})b/
/(?<!(foo)a\1)bar/
/(?i)abc/I
/(a|(?m)a)/I
/(?i)^1234/I
/(^b|(?i)^d)/I
/(?s).*/I
/[abcd]/IS
/(?i)[abcd]/IS
/(?m)[xy]|(b|c)/IS
/(^a|^b)/Im
/(?i)(^a|^b)/Im
/(a)(?(1)a|b|c)/
/(?(?=a)a|b|c)/
/(?(1a)/
/(?(1a))/
/(?(?i))/
/(?(abc))/
/(?(?<ab))/
/((?s)blah)\s+\1/I
/((?i)blah)\s+\1/I
/((?i)b)/IDZS
/(a*b|(?i:c*(?-i)d))/IS
/a$/I
a
a\n
*** Failers
\Za
\Za\n
/a$/Im
a
a\n
\Za\n
*** Failers
\Za
/\Aabc/Im
/^abc/Im
/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/I
aaaaabbbbbcccccdef
/(?<=foo)[ab]/IS
/(?<!foo)(alpha|omega)/IS
/(?!alphabet)[ab]/IS
/(?<=foo\n)^bar/Im
foo\nbarbar
***Failers
rhubarb
barbell
abc\nbarton
/^(?<=foo\n)bar/Im
foo\nbarbar
***Failers
rhubarb
barbell
abc\nbarton
/(?>^abc)/Im
abc
def\nabc
*** Failers
defabc
/(?<=ab(c+)d)ef/
/(?<=ab(?<=c+)d)ef/
/(?<=ab(c|de)f)g/
/The next three are in testinput2 because they have variable length branches/
/(?<=bullock|donkey)-cart/I
the bullock-cart
a donkey-cart race
*** Failers
cart
horse-and-cart
/(?<=ab(?i)x|y|z)/I
/(?>.*)(?<=(abcd)|(xyz))/I
alphabetabcd
endingxyz
/(?<=ab(?i)x(?-i)y|(?i)z|b)ZZ/I
abxyZZ
abXyZZ
ZZZ
zZZ
bZZ
BZZ
*** Failers
ZZ
abXYZZ
zzz
bzz
/(?<!(foo)a)bar/I
bar
foobbar
*** Failers
fooabar
/This one is here because Perl 5.005_02 doesn't fail it/I
/^(a)?(?(1)a|b)+$/I
*** Failers
a
/This one is here because Perl behaves differently; see also the following/I
/^(a\1?){4}$/I
aaaa
aaaaaa
/Perl does not fail these two for the final subjects. Neither did PCRE until/
/release 8.01. The problem is in backtracking into a subpattern that contains/
/a recursive reference to itself. PCRE has now made these into atomic patterns./
/^(xa|=?\1a){2}$/
xa=xaa
** Failers
xa=xaaa
/^(xa|=?\1a)+$/
xa=xaa
** Failers
xa=xaaa
/These are syntax tests from Perl 5.005/I
/a[b-a]/
/a[]b/
/a[/
/*a/
/(*)b/
/abc)/
/(abc/
/a**/
/)(/
/\1/
/\2/
/(a)|\2/
/a[b-a]/Ii
/a[]b/Ii
/a[/Ii
/*a/Ii
/(*)b/Ii
/abc)/Ii
/(abc/Ii
/a**/Ii
/)(/Ii
/:(?:/
/(?<%)b/
/a(?{)b/
/a(?{{})b/
/a(?{}})b/
/a(?{"{"})b/
/a(?{"{"}})b/
/(?(1?)a|b)/
/[a[:xyz:/
/(?<=x+)y/
/a{37,17}/
/abc/\
/abc/\P
/abc/\i
/(a)bc(d)/I
abcd
abcd\C2
abcd\C5
/(.{20})/I
abcdefghijklmnopqrstuvwxyz
abcdefghijklmnopqrstuvwxyz\C1
abcdefghijklmnopqrstuvwxyz\G1
/(.{15})/I
abcdefghijklmnopqrstuvwxyz
abcdefghijklmnopqrstuvwxyz\C1\G1
/(.{16})/I
abcdefghijklmnopqrstuvwxyz
abcdefghijklmnopqrstuvwxyz\C1\G1\L
/^(a|(bc))de(f)/I
adef\G1\G2\G3\G4\L
bcdef\G1\G2\G3\G4\L
adefghijk\C0
/^abc\00def/I
abc\00def\L\C0
/word ((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+
)((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+
)?)?)?)?)?)?)?)?)?otherword/I
/.*X/IDZ
/.*X/IDZs
/(.*X|^B)/IDZ
/(.*X|^B)/IDZs
/(?s)(.*X|^B)/IDZ
/(?s:.*X|^B)/IDZ
/\Biss\B/I+
Mississippi
/\Biss\B/I+P
Mississippi
/iss/IG+
Mississippi
/\Biss\B/IG+
Mississippi
/\Biss\B/Ig+
Mississippi
*** Failers
Mississippi\A
/(?<=[Ms])iss/Ig+
Mississippi
/(?<=[Ms])iss/IG+
Mississippi
/^iss/Ig+
ississippi
/.*iss/Ig+
abciss\nxyzisspqr
/.i./I+g
Mississippi
Mississippi\A
Missouri river
Missouri river\A
/^.is/I+g
Mississippi
/^ab\n/Ig+
ab\nab\ncd
/^ab\n/Img+
ab\nab\ncd
/abc/I
/abc|bac/I
/(abc|bac)/I
/(abc|(c|dc))/I
/(abc|(d|de)c)/I
/a*/I
/a+/I
/(baa|a+)/I
/a{0,3}/I
/baa{3,}/I
/"([^\\"]+|\\.)*"/I
/(abc|ab[cd])/I
/(a|.)/I
/a|ba|\w/I
/abc(?=pqr)/I
/...(?<=abc)/I
/abc(?!pqr)/I
/ab./I
/ab[xyz]/I
/abc*/I
/ab.c*/I
/a.c*/I
/.c*/I
/ac*/I
/(a.c*|b.c*)/I
/a.c*|aba/I
/.+a/I
/(?=abcda)a.*/I
/(?=a)a.*/I
/a(b)*/I
/a\d*/I
/ab\d*/I
/a(\d)*/I
/abcde{0,0}/I
/ab\d+/I
/a(?(1)b)(.)/I
/a(?(1)bag|big)(.)/I
/a(?(1)bag|big)*(.)/I
/a(?(1)bag|big)+(.)/I
/a(?(1)b..|b..)(.)/I
/ab\d{0}e/I
/a?b?/I
a
b
ab
\
*** Failers
\N
/|-/I
abcd
-abc
\Nab-c
*** Failers
\Nabc
/a*(b+)(z)(z)/P
aaaabbbbzzzz
aaaabbbbzzzz\O0
aaaabbbbzzzz\O1
aaaabbbbzzzz\O2
aaaabbbbzzzz\O3
aaaabbbbzzzz\O4
aaaabbbbzzzz\O5
/^.?abcd/IS
/\( # ( at start
(?: # Non-capturing bracket
(?>[^()]+) # Either a sequence of non-brackets (no backtracking)
| # Or
(?R) # Recurse - i.e. nested bracketed string
)* # Zero or more contents
\) # Closing )
/Ix
(abcd)
(abcd)xyz
xyz(abcd)
(ab(xy)cd)pqr
(ab(xycd)pqr
() abc ()
12(abcde(fsh)xyz(foo(bar))lmno)89
*** Failers
abcd
abcd)
(abcd
/\( ( (?>[^()]+) | (?R) )* \) /Ixg
(ab(xy)cd)pqr
1(abcd)(x(y)z)pqr
/\( (?: (?>[^()]+) | (?R) ) \) /Ix
(abcd)
(ab(xy)cd)
(a(b(c)d)e)
((ab))
*** Failers
()
/\( (?: (?>[^()]+) | (?R) )? \) /Ix
()
12(abcde(fsh)xyz(foo(bar))lmno)89
/\( ( (?>[^()]+) | (?R) )* \) /Ix
(ab(xy)cd)
/\( ( ( (?>[^()]+) | (?R) )* ) \) /Ix
(ab(xy)cd)
/\( (123)? ( ( (?>[^()]+) | (?R) )* ) \) /Ix
(ab(xy)cd)
(123ab(xy)cd)
/\( ( (123)? ( (?>[^()]+) | (?R) )* ) \) /Ix
(ab(xy)cd)
(123ab(xy)cd)
/\( (((((((((( ( (?>[^()]+) | (?R) )* )))))))))) \) /Ix
(ab(xy)cd)
/\( ( ( (?>[^()<>]+) | ((?>[^()]+)) | (?R) )* ) \) /Ix
(abcd(xyz<p>qrs)123)
/\( ( ( (?>[^()]+) | ((?R)) )* ) \) /Ix
(ab(cd)ef)
(ab(cd(ef)gh)ij)
/^[[:alnum:]]/DZ
/^[[:^alnum:]]/DZ
/^[[:alpha:]]/DZ
/^[[:^alpha:]]/DZ
/[_[:alpha:]]/IS
/^[[:ascii:]]/DZ
/^[[:^ascii:]]/DZ
/^[[:blank:]]/DZ
/^[[:^blank:]]/DZ
/[\n\x0b\x0c\x0d[:blank:]]/IS
/^[[:cntrl:]]/DZ
/^[[:digit:]]/DZ
/^[[:graph:]]/DZ
/^[[:lower:]]/DZ
/^[[:print:]]/DZ
/^[[:punct:]]/DZ
/^[[:space:]]/DZ
/^[[:upper:]]/DZ
/^[[:xdigit:]]/DZ
/^[[:word:]]/DZ
/^[[:^cntrl:]]/DZ
/^[12[:^digit:]]/DZ
/^[[:^blank:]]/DZ
/[01[:alpha:]%]/DZ
/[[.ch.]]/I
/[[=ch=]]/I
/[[:rhubarb:]]/I
/[[:upper:]]/Ii
A
a
/[[:lower:]]/Ii
A
a
/((?-i)[[:lower:]])[[:lower:]]/Ii
ab
aB
*** Failers
Ab
AB
/[\200-\110]/I
/^(?(0)f|b)oo/I
/This one's here because of the large output vector needed/I
/(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\w+)\s+(\270)/I
\O900 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ABC ABC
/This one's here because Perl does this differently and PCRE can't at present/I
/(main(O)?)+/I
mainmain
mainOmain
/These are all cases where Perl does it differently (nested captures)/I
/^(a(b)?)+$/I
aba
/^(aa(bb)?)+$/I
aabbaa
/^(aa|aa(bb))+$/I
aabbaa
/^(aa(bb)??)+$/I
aabbaa
/^(?:aa(bb)?)+$/I
aabbaa
/^(aa(b(b))?)+$/I
aabbaa
/^(?:aa(b(b))?)+$/I
aabbaa
/^(?:aa(b(?:b))?)+$/I
aabbaa
/^(?:aa(bb(?:b))?)+$/I
aabbbaa
/^(?:aa(b(?:bb))?)+$/I
aabbbaa
/^(?:aa(?:b(b))?)+$/I
aabbaa
/^(?:aa(?:b(bb))?)+$/I
aabbbaa
/^(aa(b(bb))?)+$/I
aabbbaa
/^(aa(bb(bb))?)+$/I
aabbbbaa
/--------------------------------------------------------------------/I
/#/IxDZ
/a#/IxDZ
/[\s]/DZ
/[\S]/DZ
/a(?i)b/DZ
ab
aB
*** Failers
AB
/(a(?i)b)/DZ
ab
aB
*** Failers
AB
/ (?i)abc/IxDZ
/#this is a comment
(?i)abc/IxDZ
/123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/DZ
/\Q123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890/DZ
/\Q\E/DZ
\
/\Q\Ex/DZ
/ \Q\E/DZ
/a\Q\E/DZ
abc
bca
bac
/a\Q\Eb/DZ
abc
/\Q\Eabc/DZ
/x*+\w/DZ
*** Failers
xxxxx
/x?+/DZ
/x++/DZ
/x{1,3}+/DZ
/(x)*+/DZ
/^(\w++|\s++)*$/I
now is the time for all good men to come to the aid of the party
*** Failers
this is not a line with only words and spaces!
/(\d++)(\w)/I
12345a
*** Failers
12345+
/a++b/I
aaab
/(a++b)/I
aaab
/(a++)b/I
aaab
/([^()]++|\([^()]*\))+/I
((abc(ade)ufh()()x
/\(([^()]++|\([^()]+\))+\)/I
(abc)
(abc(def)xyz)
*** Failers
((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
/(abc){1,3}+/DZ
/a+?+/I
/a{2,3}?+b/I
/(?U)a+?+/I
/a{2,3}?+b/IU
/x(?U)a++b/DZ
xaaaab
/(?U)xa++b/DZ
xaaaab
/^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/DZ
/^x(?U)a+b/DZ
/^x(?U)(a+)b/DZ
/[.x.]/I
/[=x=]/I
/[:x:]/I
/\l/I
/\L/I
/\N{name}/I
/\u/I
/\U/I
/[/I
/[a-/I
/[[:space:]/I
/[\s]/IDZ
/[[:space:]]/IDZ
/[[:space:]abcde]/IDZ
/< (?: (?(R) \d++ | [^<>]*+) | (?R)) * >/Ix
<>
<abcd>
<abc <123> hij>
<abc <def> hij>
<abc<>def>
<abc<>
*** Failers
<abc
|8J\$WE\<\.rX\+ix\[d1b\!H\#\?vV0vrK\:ZH1\=2M\>iV\;\?aPhFB\<\*vW\@QW\@sO9\}cfZA\-i\'w\%hKd6gt1UJP\,15_\#QY\$M\^Mss_U\/\]\&LK9\[5vQub\^w\[KDD\<EjmhUZ\?\.akp2dF\>qmj\;2\}YWFdYx\.Ap\]hjCPTP\(n28k\+3\;o\&WXqs\/gOXdr\$\:r\'do0\;b4c\(f_Gr\=\"\\4\)\[01T7ajQJvL\$W\~mL_sS\/4h\:x\*\[ZN\=KLs\&L5zX\/\/\>it\,o\:aU\(\;Z\>pW\&T7oP\'2K\^E\:x9\'c\[\%z\-\,64JQ5AeH_G\#KijUKghQw\^\\vea3a\?kka_G\$8\#\`\*kynsxzBLru\'\]k_\[7FrVx\}\^\=\$blx\>s\-N\%j\;D\*aZDnsw\:YKZ\%Q\.Kne9\#hP\?\+b3\(SOvL\,\^\;\&u5\@\?5C5Bhb\=m\-vEh_L15Jl\]U\)0RP6\{q\%L\^_z5E\'Dw6X\b|IDZ
|\$\<\.X\+ix\[d1b\!H\#\?vV0vrK\:ZH1\=2M\>iV\;\?aPhFB\<\*vW\@QW\@sO9\}cfZA\-i\'w\%hKd6gt1UJP\,15_\#QY\$M\^Mss_U\/\]\&LK9\[5vQub\^w\[KDD\<EjmhUZ\?\.akp2dF\>qmj\;2\}YWFdYx\.Ap\]hjCPTP\(n28k\+3\;o\&WXqs\/gOXdr\$\:r\'do0\;b4c\(f_Gr\=\"\\4\)\[01T7ajQJvL\$W\~mL_sS\/4h\:x\*\[ZN\=KLs\&L5zX\/\/\>it\,o\:aU\(\;Z\>pW\&T7oP\'2K\^E\:x9\'c\[\%z\-\,64JQ5AeH_G\#KijUKghQw\^\\vea3a\?kka_G\$8\#\`\*kynsxzBLru\'\]k_\[7FrVx\}\^\=\$blx\>s\-N\%j\;D\*aZDnsw\:YKZ\%Q\.Kne9\#hP\?\+b3\(SOvL\,\^\;\&u5\@\?5C5Bhb\=m\-vEh_L15Jl\]U\)0RP6\{q\%L\^_z5E\'Dw6X\b|IDZ
/(.*)\d+\1/I
/(.*)\d+/I
/(.*)\d+\1/Is
/(.*)\d+/Is
/(.*(xyz))\d+\2/I
/((.*))\d+\1/I
abc123bc
/a[b]/I
/(?=a).*/I
/(?=abc).xyz/IiI
/(?=abc)(?i).xyz/I
/(?=a)(?=b)/I
/(?=.)a/I
/((?=abcda)a)/I
/((?=abcda)ab)/I
/()a/I
/(?(1)ab|ac)(.)/I
/(?(1)abz|acz)(.)/I
/(?(1)abz)(.)/I
/(?(1)abz)(1)23/I
/(a)+/I
/(a){2,3}/I
/(a)*/I
/[a]/I
/[ab]/I
/[ab]/IS
/[^a]/I
/\d456/I
/\d456/IS
/a^b/I
/^a/Im
abcde
xy\nabc
*** Failers
xyabc
/c|abc/I
/(?i)[ab]/IS
/[ab](?i)cd/IS
/abc(?C)def/I
abcdef
1234abcdef
*** Failers
abcxyz
abcxyzf
/abc(?C)de(?C1)f/I
123abcdef
/(?C1)\dabc(?C2)def/I
1234abcdef
*** Failers
abcdef
/(?C255)ab/I
/(?C256)ab/I
/(?Cab)xx/I
/(?C12vr)x/I
/abc(?C)def/I
*** Failers
\x83\x0\x61bcdef
/(abc)(?C)de(?C1)f/I
123abcdef
123abcdef\C+
123abcdef\C-
*** Failers
123abcdef\C!1
/(?C0)(abc(?C1))*/I
abcabcabc
abcabc\C!1!3
*** Failers
abcabcabc\C!1!3
/(\d{3}(?C))*/I
123\C+
123456\C+
123456789\C+
/((xyz)(?C)p|(?C1)xyzabc)/I
xyzabc\C+
/(X)((xyz)(?C)p|(?C1)xyzabc)/I
Xxyzabc\C+
/(?=(abc))(?C)abcdef/I
abcdef\C+
/(?!(abc)(?C1)d)(?C2)abcxyz/I
abcxyz\C+
/(?<=(abc)(?C))xyz/I
abcxyz\C+
/a(b+)(c*)(?C1)/I
abbbbbccc\C*1
/a(b+?)(c*?)(?C1)/I
abbbbbccc\C*1
/(?C)abc/I
/(?C)^abc/I
/(?C)a|b/IS
/(?R)/I
/(a|(?R))/I
/(ab|(bc|(de|(?R))))/I
/x(ab|(bc|(de|(?R))))/I
xab
xbc
xde
xxab
xxxab
*** Failers
xyab
/(ab|(bc|(de|(?1))))/I
/x(ab|(bc|(de|(?1)x)x)x)/I
/^([^()]|\((?1)*\))*$/I
abc
a(b)c
a(b(c))d
*** Failers)
a(b(c)d
/^>abc>([^()]|\((?1)*\))*<xyz<$/I
>abc>123<xyz<
>abc>1(2)3<xyz<
>abc>(1(2)3)<xyz<
/(a(?1)b)/DZ
/(a(?1)+b)/DZ
/^(\d+|\((?1)([+*-])(?1)\)|-(?1))$/I
12
(((2+2)*-3)-7)
-12
*** Failers
((2+2)*-3)-7)
/^(x(y|(?1){2})z)/I
xyz
xxyzxyzz
*** Failers
xxyzz
xxyzxyzxyzz
/((< (?: (?(R) \d++ | [^<>]*+) | (?2)) * >))/Ix
<>
<abcd>
<abc <123> hij>
<abc <def> hij>
<abc<>def>
<abc<>
*** Failers
<abc
/(?1)/I
/((?2)(abc)/I
/^(abc)def(?1)/I
abcdefabc
/^(a|b|c)=(?1)+/I
a=a
a=b
a=bc
/^(a|b|c)=((?1))+/I
a=a
a=b
a=bc
/a(?P<name1>b|c)d(?P<longername2>e)/DZ
abde
acde
/(?:a(?P<c>c(?P<d>d)))(?P<a>a)/DZ
/(?P<a>a)...(?P=a)bbb(?P>a)d/DZ
/^\W*(?:(?P<one>(?P<two>.)\W*(?P>one)\W*(?P=two)|)|(?P<three>(?P<four>.)\W*(?P>three)\W*(?P=four)|\W*.\W*))\W*$/Ii
1221
Satan, oscillate my metallic sonatas!
A man, a plan, a canal: Panama!
Able was I ere I saw Elba.
*** Failers
The quick brown fox
/((?(R)a|b))\1(?1)?/I
bb
bbaa
/(.*)a/Is
/(.*)a\1/Is
/(.*)a(b)\2/Is
/((.*)a|(.*)b)z/Is
/((.*)a|(.*)b)z\1/Is
/((.*)a|(.*)b)z\2/Is
/((.*)a|(.*)b)z\3/Is
/((.*)a|^(.*)b)z\3/Is
/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a/Is
/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\31/Is
/(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\32/Is
/(a)(bc)/INDZ
abc
/(?P<one>a)(bc)/INDZ
abc
/(a)(?P<named>bc)/INDZ
/(a+)*zz/I
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaazzbbbbbb\M
aaaaaaaaaaaaaz\M
/(aaa(?C1)bbb|ab)/I
aaabbb
aaabbb\C*0
aaabbb\C*1
aaabbb\C*-1
/ab(?P<one>cd)ef(?P<two>gh)/I
abcdefgh
abcdefgh\C1\Gtwo
abcdefgh\Cone\Ctwo
abcdefgh\Cthree
/(?P<Tes>)(?P<Test>)/DZ
/(?P<Test>)(?P<Tes>)/DZ
/(?P<Z>zz)(?P<A>aa)/I
zzaa\CZ
zzaa\CA
/(?P<x>eks)(?P<x>eccs)/I
/(?P<abc>abc(?P<def>def)(?P<abc>xyz))/I
"\[((?P<elem>\d+)(,(?P>elem))*)\]"I
[10,20,30,5,5,4,4,2,43,23,4234]
*** Failers
[]
"\[((?P<elem>\d+)(,(?P>elem))*)?\]"I
[10,20,30,5,5,4,4,2,43,23,4234]
[]
/(a(b(?2)c))?/DZ
/(a(b(?2)c))*/DZ
/(a(b(?2)c)){0,2}/DZ
/[ab]{1}+/DZ
/((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/Ii
Baby Bjorn Active Carrier - With free SHIPPING!!
/((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/IiS
Baby Bjorn Active Carrier - With free SHIPPING!!
/a*.*b/ISDZ
/(a|b)*.?c/ISDZ
/abc(?C255)de(?C)f/DZ
/abcde/ICDZ
abcde
abcdfe
/a*b/ICDZ
ab
aaaab
aaaacb
/a+b/ICDZ
ab
aaaab
aaaacb
/(abc|def)x/ICDZ
abcx
defx
abcdefzx
/(ab|cd){3,4}/IC
ababab
abcdabcd
abcdcdcdcdcd
/([ab]{,4}c|xy)/ICDZ
Note: that { does NOT introduce a quantifier
/([ab]{1,4}c|xy){4,5}?123/ICDZ
aacaacaacaacaac123
/\b.*/I
ab cd\>1
/\b.*/Is
ab cd\>1
/(?!.bcd).*/I
Xbcd12345
/abcde/I
ab\P
abc\P
abcd\P
abcde\P
the quick brown abc\P
** Failers\P
the quick brown abxyz fox\P
"^(0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[012])/(20)?\d\d$"I
13/05/04\P
13/5/2004\P
02/05/09\P
1\P
1/2\P
1/2/0\P
1/2/04\P
0\P
02/\P
02/0\P
02/1\P
** Failers\P
\P
123\P
33/4/04\P
3/13/04\P
0/1/2003\P
0/\P
02/0/\P
02/13\P
/0{0,2}ABC/I
/\d{3,}ABC/I
/\d*ABC/I
/[abc]+DE/I
/[abc]?123/I
123\P
a\P
b\P
c\P
c12\P
c123\P
/^(?:\d){3,5}X/I
1\P
123\P
123X
1234\P
1234X
12345\P
12345X
*** Failers
1X
123456\P
/abc/I>testsavedregex
<testsavedregex
abc
** Failers
bca
/abc/IF>testsavedregex
<testsavedregex
abc
** Failers
bca
/(a|b)/IS>testsavedregex
<testsavedregex
abc
** Failers
def
/(a|b)/ISF>testsavedregex
<testsavedregex
abc
** Failers
def
~<(\w+)/?>(.)*</(\1)>~smgI
<!DOCTYPE seite SYSTEM "http://www.lco.lineas.de/xmlCms.dtd">\n<seite>\n<dokumenteninformation>\n<seitentitel>Partner der LCO</seitentitel>\n<sprache>de</sprache>\n<seitenbeschreibung>Partner der LINEAS Consulting\nGmbH</seitenbeschreibung>\n<schluesselworte>LINEAS Consulting GmbH Hamburg\nPartnerfirmen</schluesselworte>\n<revisit>30 days</revisit>\n<robots>index,follow</robots>\n<menueinformation>\n<aktiv>ja</aktiv>\n<menueposition>3</menueposition>\n<menuetext>Partner</menuetext>\n</menueinformation>\n<lastedited>\n<autor>LCO</autor>\n<firma>LINEAS Consulting</firma>\n<datum>15.10.2003</datum>\n</lastedited>\n</dokumenteninformation>\n<inhalt>\n\n<absatzueberschrift>Die Partnerfirmen der LINEAS Consulting\nGmbH</absatzueberschrift>\n\n<absatz><link ziel="http://www.ca.com/" zielfenster="_blank">\n<bild name="logo_ca.gif" rahmen="no"/></link> <link\nziel="http://www.ey.com/" zielfenster="_blank"><bild\nname="logo_euy.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><link ziel="http://www.cisco.de/" zielfenster="_blank">\n<bild name="logo_cisco.gif" rahmen="ja"/></link></absatz>\n\n<absatz><link ziel="http://www.atelion.de/"\nzielfenster="_blank"><bild\nname="logo_atelion.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><link ziel="http://www.line-information.de/"\nzielfenster="_blank">\n<bild name="logo_line_information.gif" rahmen="no"/></link>\n</absatz>\n\n<absatz><bild name="logo_aw.gif" rahmen="no"/></absatz>\n\n<absatz><link ziel="http://www.incognis.de/"\nzielfenster="_blank"><bild\nname="logo_incognis.gif" rahmen="no"/></link></absatz>\n\n<absatz><link ziel="http://www.addcraft.com/"\nzielfenster="_blank"><bild\nname="logo_addcraft.gif" rahmen="no"/></link></absatz>\n\n<absatz><link ziel="http://www.comendo.com/"\nzielfenster="_blank"><bild\nname="logo_comendo.gif" rahmen="no"/></link></absatz>\n\n</inhalt>\n</seite>
/^a/IF
/line\nbreak/I
this is a line\nbreak
line one\nthis is a line\nbreak in the second line
/line\nbreak/If
this is a line\nbreak
** Failers
line one\nthis is a line\nbreak in the second line
/line\nbreak/Imf
this is a line\nbreak
** Failers
line one\nthis is a line\nbreak in the second line
/ab.cd/P
ab-cd
ab=cd
** Failers
ab\ncd
/ab.cd/Ps
ab-cd
ab=cd
ab\ncd
/(?i)(?-i)AbCd/I
AbCd
** Failers
abcd
/a{11111111111111111111}/I
/(){64294967295}/I
/(){2,4294967295}/I
"(?i:a)(?i:b)(?i:c)(?i:d)(?i:e)(?i:f)(?i:g)(?i:h)(?i:i)(?i:j)(k)(?i:l)A\1B"I
abcdefghijklAkB
"(?P<n0>a)(?P<n1>b)(?P<n2>c)(?P<n3>d)(?P<n4>e)(?P<n5>f)(?P<n6>g)(?P<n7>h)(?P<n8>i)(?P<n9>j)(?P<n10>k)(?P<n11>l)A\11B"I
abcdefghijklAkB
"(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)A\11B"I
abcdefghijklAkB
"(?P<name0>a)(?P<name1>a)(?P<name2>a)(?P<name3>a)(?P<name4>a)(?P<name5>a)(?P<name6>a)(?P<name7>a)(?P<name8>a)(?P<name9>a)(?P<name10>a)(?P<name11>a)(?P<name12>a)(?P<name13>a)(?P<name14>a)(?P<name15>a)(?P<name16>a)(?P<name17>a)(?P<name18>a)(?P<name19>a)(?P<name20>a)(?P<name21>a)(?P<name22>a)(?P<name23>a)(?P<name24>a)(?P<name25>a)(?P<name26>a)(?P<name27>a)(?P<name28>a)(?P<name29>a)(?P<name30>a)(?P<name31>a)(?P<name32>a)(?P<name33>a)(?P<name34>a)(?P<name35>a)(?P<name36>a)(?P<name37>a)(?P<name38>a)(?P<name39>a)(?P<name40>a)(?P<name41>a)(?P<name42>a)(?P<name43>a)(?P<name44>a)(?P<name45>a)(?P<name46>a)(?P<name47>a)(?P<name48>a)(?P<name49>a)(?P<name50>a)(?P<name51>a)(?P<name52>a)(?P<name53>a)(?P<name54>a)(?P<name55>a)(?P<name56>a)(?P<name57>a)(?P<name58>a)(?P<name59>a)(?P<name60>a)(?P<name61>a)(?P<name62>a)(?P<name63>a)(?P<name64>a)(?P<name65>a)(?P<name66>a)(?P<name67>a)(?P<name68>a)(?P<name69>a)(?P<name70>a)(?P<name71>a)(?P<name72>a)(?P<name73>a)(?P<name74>a)(?P<name75>a)(?P<name76>a)(?P<name77>a)(?P<name78>a)(?P<name79>a)(?P<name80>a)(?P<name81>a)(?P<name82>a)(?P<name83>a)(?P<name84>a)(?P<name85>a)(?P<name86>a)(?P<name87>a)(?P<name88>a)(?P<name89>a)(?P<name90>a)(?P<name91>a)(?P<name92>a)(?P<name93>a)(?P<name94>a)(?P<name95>a)(?P<name96>a)(?P<name97>a)(?P<name98>a)(?P<name99>a)(?P<name100>a)"I
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
"(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)"I
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
/[^()]*(?:\((?R)\)[^()]*)*/I
(this(and)that
(this(and)that)
(this(and)that)stuff
/[^()]*(?:\((?>(?R))\)[^()]*)*/I
(this(and)that
(this(and)that)
/[^()]*(?:\((?R)\))*[^()]*/I
(this(and)that
(this(and)that)
/(?:\((?R)\))*[^()]*/I
(this(and)that
(this(and)that)
((this))
/(?:\((?R)\))|[^()]*/I
(this(and)that
(this(and)that)
(this)
((this))
/a(b)c/PN
abc
/a(?P<name>b)c/PN
abc
/\x{100}/I
/\x{0000ff}/I
/^((?P<A>a1)|(?P<A>a2)b)/I
/^((?P<A>a1)|(?P<A>a2)b)/IJ
a1b\CA
a2b\CA
** Failers
a1b\CZ\CA
/^(?P<A>a)(?P<A>b)/IJ
ab\CA
/^(?P<A>a)(?P<A>b)|cd/IJ
ab\CA
cd\CA
/^(?P<A>a)(?P<A>b)|cd(?P<A>ef)(?P<A>gh)/IJ
cdefgh\CA
/^((?P<A>a1)|(?P<A>a2)b)/IJ
a1b\GA
a2b\GA
** Failers
a1b\GZ\GA
/^(?P<A>a)(?P<A>b)/IJ
ab\GA
/^(?P<A>a)(?P<A>b)|cd/IJ
ab\GA
cd\GA
/^(?P<A>a)(?P<A>b)|cd(?P<A>ef)(?P<A>gh)/IJ
cdefgh\GA
/(?J)^((?P<A>a1)|(?P<A>a2)b)/I
a1b\CA
a2b\CA
/^(?P<A>a) (?J:(?P<B>b)(?P<B>c)) (?P<A>d)/I
/ In this next test, J is not set at the outer level; consequently it isn't
set in the pattern's options; consequently pcre_get_named_substring() produces
a random value. /Ix
/^(?P<A>a) (?J:(?P<B>b)(?P<B>c)) (?P<C>d)/I
a bc d\CA\CB\CC
/^(?P<A>a)?(?(A)a|b)/I
aabc
bc
** Failers
abc
/(?:(?(ZZ)a|b)(?P<ZZ>X))+/I
bXaX
/(?:(?(2y)a|b)(X))+/I
/(?:(?(ZA)a|b)(?P<ZZ>X))+/I
/(?:(?(ZZ)a|b)(?(ZZ)a|b)(?P<ZZ>X))+/I
bbXaaX
/(?:(?(ZZ)a|\(b\))\\(?P<ZZ>X))+/I
(b)\\Xa\\X
/(?P<ABC/I
/(?:(?(A)(?P=A)a|b)(?P<A>X|Y))+/I
bXXaYYaY
bXYaXXaX
/()()()()()()()()()(?:(?(A)(?P=A)a|b)(?P<A>X|Y))+/I
bXXaYYaY
/\777/I
/\s*,\s*/IS
\x0b,\x0b
\x0c,\x0d
/^abc/Im
xyz\nabc
xyz\nabc\<lf>
xyz\r\nabc\<lf>
xyz\rabc\<cr>
xyz\r\nabc\<crlf>
** Failers
xyz\nabc\<cr>
xyz\r\nabc\<cr>
xyz\nabc\<crlf>
xyz\rabc\<crlf>
xyz\rabc\<lf>
/abc$/Im<lf>
xyzabc
xyzabc\n
xyzabc\npqr
xyzabc\r\<cr>
xyzabc\rpqr\<cr>
xyzabc\r\n\<crlf>
xyzabc\r\npqr\<crlf>
** Failers
xyzabc\r
xyzabc\rpqr
xyzabc\r\n
xyzabc\r\npqr
/^abc/Im<cr>
xyz\rabcdef
xyz\nabcdef\<lf>
** Failers
xyz\nabcdef
/^abc/Im<lf>
xyz\nabcdef
xyz\rabcdef\<cr>
** Failers
xyz\rabcdef
/^abc/Im<crlf>
xyz\r\nabcdef
xyz\rabcdef\<cr>
** Failers
xyz\rabcdef
/^abc/Im<bad>
/abc/I
xyz\rabc\<bad>
abc
/.*/I<lf>
abc\ndef
abc\rdef
abc\r\ndef
\<cr>abc\ndef
\<cr>abc\rdef
\<cr>abc\r\ndef
\<crlf>abc\ndef
\<crlf>abc\rdef
\<crlf>abc\r\ndef
/\w+(.)(.)?def/Is
abc\ndef
abc\rdef
abc\r\ndef
+((?:\s|//.*\\n|/[*](?:\\n|.)*?[*]/)*)+I
/* this is a C style comment */\M
/(?P<B>25[0-5]|2[0-4]\d|[01]?\d?\d)(?:\.(?P>B)){3}/I
/()()()()()()()()()()()()()()()()()()()()
()()()()()()()()()()()()()()()()()()()()
()()()()()()()()()()()()()()()()()()()()
()()()()()()()()()()()()()()()()()()()()
()()()()()()()()()()()()()()()()()()()()
(.(.))/Ix
XY\O400
/(a*b|(?i:c*(?-i)d))/IS
/()[ab]xyz/IS
/(|)[ab]xyz/IS
/(|c)[ab]xyz/IS
/(|c?)[ab]xyz/IS
/(d?|c?)[ab]xyz/IS
/(d?|c)[ab]xyz/IS
/^a*b\d/DZ
/^a*+b\d/DZ
/^a*?b\d/DZ
/^a+A\d/DZ
aaaA5
** Failers
aaaa5
/^a*A\d/IiDZ
aaaA5
aaaa5
/(a*|b*)[cd]/IS
/(a+|b*)[cd]/IS
/(a*|b+)[cd]/IS
/(a+|b+)[cd]/IS
/((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((
((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((
(((
a
))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
)))
/Ix
large nest
/a*\d/BZ
/a*\D/BZ
/0*\d/BZ
/0*\D/BZ
/a*\s/BZ
/a*\S/BZ
/ *\s/BZ
/ *\S/BZ
/a*\w/BZ
/a*\W/BZ
/=*\w/BZ
/=*\W/BZ
/\d*a/BZ
/\d*2/BZ
/\d*\d/BZ
/\d*\D/BZ
/\d*\s/BZ
/\d*\S/BZ
/\d*\w/BZ
/\d*\W/BZ
/\D*a/BZ
/\D*2/BZ
/\D*\d/BZ
/\D*\D/BZ
/\D*\s/BZ
/\D*\S/BZ
/\D*\w/BZ
/\D*\W/BZ
/\s*a/BZ
/\s*2/BZ
/\s*\d/BZ
/\s*\D/BZ
/\s*\s/BZ
/\s*\S/BZ
/\s*\w/BZ
/\s*\W/BZ
/\S*a/BZ
/\S*2/BZ
/\S*\d/BZ
/\S*\D/BZ
/\S*\s/BZ
/\S*\S/BZ
/\S*\w/BZ
/\S*\W/BZ
/\w*a/BZ
/\w*2/BZ
/\w*\d/BZ
/\w*\D/BZ
/\w*\s/BZ
/\w*\S/BZ
/\w*\w/BZ
/\w*\W/BZ
/\W*a/BZ
/\W*2/BZ
/\W*\d/BZ
/\W*\D/BZ
/\W*\s/BZ
/\W*\S/BZ
/\W*\w/BZ
/\W*\W/BZ
/[^a]+a/BZ
/[^a]+a/BZi
/[^a]+A/BZi
/[^a]+b/BZ
/[^a]+\d/BZ
/a*[^a]/BZ
/(?P<abc>x)(?P<xyz>y)/I
xy\Cabc\Cxyz
/(?<abc>x)(?'xyz'y)/I
xy\Cabc\Cxyz
/(?<abc'x)(?'xyz'y)/I
/(?<abc>x)(?'xyz>y)/I
/(?P'abc'x)(?P<xyz>y)/I
/^(?:(?(ZZ)a|b)(?<ZZ>X))+/
bXaX
bXbX
** Failers
aXaX
aXbX
/^(?P>abc)(?<abcd>xxx)/
/^(?P>abc)(?<abc>x|y)/
xx
xy
yy
yx
/^(?P>abc)(?P<abc>x|y)/
xx
xy
yy
yx
/^((?(abc)a|b)(?<abc>x|y))+/
bxay
bxby
** Failers
axby
/^(((?P=abc)|X)(?<abc>x|y))+/
XxXxxx
XxXyyx
XxXyxx
** Failers
x
/^(?1)(abc)/
abcabc
/^(?:(?:\1|X)(a|b))+/
Xaaa
Xaba
/^[\E\Qa\E-\Qz\E]+/BZ
/^[a\Q]bc\E]/BZ
/^[a-\Q\E]/BZ
/^(?P>abc)[()](?<abc>)/BZ
/^((?(abc)y)[()](?P<abc>x))+/BZ
(xy)x
/^(?P>abc)\Q()\E(?<abc>)/BZ
/^(?P>abc)[a\Q(]\E(](?<abc>)/BZ
/^(?P>abc) # this is (a comment)
(?<abc>)/BZx
/^\W*(?:(?<one>(?<two>.)\W*(?&one)\W*\k<two>|)|(?<three>(?<four>.)\W*(?&three)\W*\k'four'|\W*.\W*))\W*$/Ii
1221
Satan, oscillate my metallic sonatas!
A man, a plan, a canal: Panama!
Able was I ere I saw Elba.
*** Failers
The quick brown fox
/(?=(\w+))\1:/I
abcd:
/(?=(?'abc'\w+))\k<abc>:/I
abcd:
/(?'abc'a|b)(?<abc>d|e)\k<abc>{2}/J
adaa
** Failers
addd
adbb
/(?'abc'a|b)(?<abc>d|e)(?&abc){2}/J
bdaa
bdab
** Failers
bddd
/(?(<bc))/
/(?(''))/
/(?('R')stuff)/
/((abc (?(R) (?(R1)1) (?(R2)2) X | (?1) (?2) (?R) ))) /x
abcabc1Xabc2XabcXabcabc
/(?<A> (?'B' abc (?(R) (?(R&A)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x
abcabc1Xabc2XabcXabcabc
/(?<A> (?'B' abc (?(R) (?(R&1)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x
/(?<1> (?'B' abc (?(R) (?(R&1)1) (?(R&B)2) X | (?1) (?2) (?R) ))) /x
abcabc1Xabc2XabcXabcabc
/^(?(DEFINE) abc | xyz ) /x
/(?(DEFINE) abc) xyz/xI
/(?(DEFINE) abc){3} xyz/x
/(a|)*\d/
\O0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
\O0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa4
/^a.b/<lf>
a\rb
a\nb\<cr>
a\x85b\<anycrlf>
** Failers
a\nb
a\nb\<any>
a\rb\<cr>
a\rb\<any>
a\x85b\<any>
a\rb\<anycrlf>
/^abc./mgx<any>
abc1 \x0aabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\x0aabc6 \x85abc7 JUNK
/abc.$/mgx<any>
abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc7 abc9
/a/<cr><any>
/a/<any><crlf>
/^a\Rb/<bsr_unicode>
a\nb
a\rb
a\r\nb
a\x0bb
a\x0cb
a\x85b
** Failers
a\n\rb
/^a\R*b/<bsr_unicode>
ab
a\nb
a\rb
a\r\nb
a\x0bb
a\x0cb
a\x85b
a\n\rb
a\n\r\x85\x0cb
/^a\R+b/<bsr_unicode>
a\nb
a\rb
a\r\nb
a\x0bb
a\x0cb
a\x85b
a\n\rb
a\n\r\x85\x0cb
** Failers
ab
/^a\R{1,3}b/<bsr_unicode>
a\nb
a\n\rb
a\n\r\x85b
a\r\n\r\nb
a\r\n\r\n\r\nb
a\n\r\n\rb
a\n\n\r\nb
** Failers
a\n\n\n\rb
a\r
/^a[\R]b/<bsr_unicode>
aRb
** Failers
a\nb
/(?&abc)X(?<abc>P)/I
abcPXP123
/(?1)X(?<abc>P)/I
abcPXP123
/(?:a(?&abc)b)*(?<abc>x)/
123axbaxbaxbx456
123axbaxbaxb456
/(?:a(?&abc)b){1,5}(?<abc>x)/
123axbaxbaxbx456
/(?:a(?&abc)b){2,5}(?<abc>x)/
123axbaxbaxbx456
/(?:a(?&abc)b){2,}(?<abc>x)/
123axbaxbaxbx456
/(abc)(?i:(?1))/
defabcabcxyz
DEFabcABCXYZ
/(abc)(?:(?i)(?1))/
defabcabcxyz
DEFabcABCXYZ
/^(a)\g-2/
/^(a)\g/
/^(a)\g{0}/
/^(a)\g{3/
/^(a)\g{4a}/
/^a.b/<lf>
a\rb
*** Failers
a\nb
/.+foo/
afoo
** Failers
\r\nfoo
\nfoo
/.+foo/<crlf>
afoo
\nfoo
** Failers
\r\nfoo
/.+foo/<any>
afoo
** Failers
\nfoo
\r\nfoo
/.+foo/s
afoo
\r\nfoo
\nfoo
/^$/mg<any>
abc\r\rxyz
abc\n\rxyz
** Failers
abc\r\nxyz
/(?m)^$/<any>g+
abc\r\n\r\n
/(?m)^$|^\r\n/<any>g+
abc\r\n\r\n
/(?m)$/<any>g+
abc\r\n\r\n
/abc.$/mgx<anycrlf>
abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x85 abc9
/^X/m
XABC
** Failers
XABC\B
/(ab|c)(?-1)/BZ
abc
/xy(?+1)(abc)/BZ
xyabcabc
** Failers
xyabc
/x(?-0)y/
/x(?-1)y/
/x(?+0)y/
/x(?+1)y/
/^(abc)?(?(-1)X|Y)/BZ
abcX
Y
** Failers
abcY
/^((?(+1)X|Y)(abc))+/BZ
YabcXabc
YabcXabcXabc
** Failers
XabcXabc
/(?(-1)a)/BZ
/((?(-1)a))/BZ
/((?(-2)a))/BZ
/^(?(+1)X|Y)(.)/BZ
Y!
/(?<A>tom|bon)-\k{A}/
tom-tom
bon-bon
** Failers
tom-bon
/\g{A/
/(?|(abc)|(xyz))/BZ
>abc<
>xyz<
/(x)(?|(abc)|(xyz))(x)/BZ
xabcx
xxyzx
/(x)(?|(abc)(pqr)|(xyz))(x)/BZ
xabcpqrx
xxyzx
/[\h]/BZ
>\x09<
/[\h]+/BZ
>\x09\x20\xa0<
/[\v]/BZ
/[\H]/BZ
/[^\h]/BZ
/[\V]/BZ
/[\x0a\V]/BZ
/\H++X/BZ
** Failers
XXXX
/\H+\hY/BZ
XXXX Y
/\H+ Y/BZ
/\h+A/BZ
/\v*B/BZ
/\V+\x0a/BZ
/A+\h/BZ
/ *\H/BZ
/A*\v/BZ
/\x0b*\V/BZ
/\d+\h/BZ
/\d*\v/BZ
/S+\h\S+\v/BZ
/\w{3,}\h\w+\v/BZ
/\h+\d\h+\w\h+\S\h+\H/BZ
/\v+\d\v+\w\v+\S\v+\V/BZ
/\H+\h\H+\d/BZ
/\V+\v\V+\w/BZ
/\( (?: [^()]* | (?R) )* \)/x
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** Failers
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** Failers
a\rb
/(*LF)a.b/<CRLF>
a\rb
** Failers
a\nb
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a\rb
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** Failers
a\r\nb
/(*ANYCRLF)a.b/<CR>
** Failers
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a\r\nb
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** Failers
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a\nb
a\r\nb
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abc\r\ndef
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abc\r\ndef
/(*CRLF).*/g
abc\r\ndef
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a\rb
a\nb
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** Failers
a\x85b
a\x0bb
/a\Rb/I<bsr_unicode>
a\rb
a\nb
a\r\nb
a\x85b
a\x0bb
** Failers
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a\x0bb\<bsr_anycrlf>
/a\R?b/I<bsr_anycrlf>
a\rb
a\nb
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** Failers
a\x85b
a\x0bb
/a\R?b/I<bsr_unicode>
a\rb
a\nb
a\r\nb
a\x85b
a\x0bb
** Failers
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/a\R{2,4}b/I<bsr_anycrlf>
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** Failers
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a\n\n\nb
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cat
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** Failers
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** Failers
ab
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aXb
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abcxypqr
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Xaaa\P
Xaaaa\P
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Xaaa\P
Xaaaa\P
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dogs\P\P
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** Failers
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** Failers
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** Failers
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** Failers
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xyz\N
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aaaa
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bbaccxxx
bbbacccxx
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aaaa
bacxxx
bbaccxxx
bbbacccxx
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aaaa
bacxxx
bbaccxxx
bbbacccxx
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aaaa
bacxxx
bbaccxxx
bbbacccxx
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bacxxx
bbaccxxx
bbbacccxx
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bacxxx
bbaccxxx
bbbacccxx
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XaaX
XAAX
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XAAX
/(?-i:\g<+1>)(?i:(a))/
XaaX
XAAX
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abc
accccbbb
/^X(?7)(a)(?|(b)|(q)(r)(s))(c)(d)(Y)/
XYabcdY
/(?<=b(?1)|zzz)(a)/
xbaax
xzzzax
/(a)(?<=b\1)/
/(a)(?<=b+(?1))/
/(a+)(?<=b(?1))/
/(a(?<=b(?1)))/
/(?<=b(?1))xyz/
/(?<=b(?1))xyz(b+)pqrstuvew/
/(a|bc)\1/SI
/(a|bc)\1{2,3}/SI
/(a|bc)(?1)/SI
/(a|b\1)(a|b\1)/SI
/(a|b\1){2}/SI
/(a|bbbb\1)(a|bbbb\1)/SI
/(a|bbbb\1){2}/SI
/^From +([^ ]+) +[a-zA-Z][a-zA-Z][a-zA-Z] +[a-zA-Z][a-zA-Z][a-zA-Z] +[0-9]?[0-9] +[0-9][0-9]:[0-9][0-9]/SI
/ (?: [\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
/xSI
/<tr([\w\W\s\d][^<>]{0,})><TD([\w\W\s\d][^<>]{0,})>([\d]{0,}\.)(.*)((<BR>([\w\W\s\d][^<>]{0,})|[\s]{0,}))<\/a><\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><\/TR>/isIS
"(?>.*/)foo"SI
/(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /xSI
/(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/iSI
/(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/SI
/<a[\s]+href[\s]*=[\s]* # find <a href=
([\"\'])? # find single or double quote
(?(1) (.*?)\1 | ([^\s]+)) # if quote found, match up to next matching
# quote, otherwise match up to next space
/isxSI
/^(?!:) # colon disallowed at start
(?: # start of item
(?: [0-9a-f]{1,4} | # 1-4 hex digits or
(?(1)0 | () ) ) # if null previously matched, fail; else null
: # followed by colon
){1,7} # end item; 1-7 of them required
[0-9a-f]{1,4} $ # final hex number at end of string
(?(1)|.) # check that there was an empty component
/xiIS
/(?|(?<a>A)|(?<a>B))/I
AB\Ca
BA\Ca
/(?|(?<a>A)|(?<b>B))/
/(?:a(?<quote> (?<apostrophe>')|(?<realquote>")) |
b(?<quote> (?<apostrophe>')|(?<realquote>")) )
(?('quote')[a-z]+|[0-9]+)/JIx
a"aaaaa
b"aaaaa
** Failers
b"11111
a"11111
/^(?|(a)(b)(c)(?<D>d)|(?<D>e)) (?('D')X|Y)/JDZx
abcdX
eX
** Failers
abcdY
ey
/(?<A>a) (b)(c) (?<A>d (?(R&A)$ | (?4)) )/JDZx
abcdd
** Failers
abcdde
/abcd*/
xxxxabcd\P
xxxxabcd\P\P
/abcd*/i
xxxxabcd\P
xxxxabcd\P\P
XXXXABCD\P
XXXXABCD\P\P
/abc\d*/
xxxxabc1\P
xxxxabc1\P\P
/(a)bc\1*/
xxxxabca\P
xxxxabca\P\P
/abc[de]*/
xxxxabcde\P
xxxxabcde\P\P
/-- This is not in the Perl >= 5.10 test because Perl seems currently to be
broken and not behaving as specified in that it *does* bumpalong after
hitting (*COMMIT). --/
/(?1)(A(*COMMIT)|B)D/
ABD
XABD
BAD
ABXABD
** Failers
ABX
BAXBAD
/(\3)(\1)(a)/<JS>
cat
/(\3)(\1)(a)/SI<JS>
cat
/(\3)(\1)(a)/SI
cat
/i(?(DEFINE)(?<s>a))/SI
i
/()i(?(1)a)/SI
ia
/(?i)a(?-i)b|c/BZ
XabX
XAbX
CcC
** Failers
XABX
/(?i)a(?s)b|c/BZ
/(?i)a(?s-i)b|c/BZ
/^(ab(c\1)d|x){2}$/BZ
xabcxd
/^(?&t)*+(?(DEFINE)(?<t>.))$/BZ
/^(?&t)*(?(DEFINE)(?<t>.))$/BZ
/ -- The first four of these are not in the Perl >= 5.10 test because Perl
documents that the use of \K in assertions is "not well defined". The
last is here because Perl gives the match as "b" rather than "ab". I
believe this to be a Perl bug. --/
/(?=a\Kb)ab/
ab
/(?!a\Kb)ac/
ac
/^abc(?<=b\Kc)d/
abcd
/^abc(?<!b\Kq)d/
abcd
/(?>a\Kb)z|(ab)/
ab
/----------------------/
/(?P<L1>(?P<L2>0|)|(?P>L2)(?P>L1))/
/abc(*MARK:)pqr/
/abc(*:)pqr/
/abc(*FAIL:123)xyz/
/--- This should, and does, fail. In Perl, it does not, which I think is a
bug because replacing the B in the pattern by (B|D) does make it fail. ---/
/A(*COMMIT)B/+K
ACABX
/--- These should be different, but in Perl 5.11 are not, which I think
is a bug in Perl. ---/
/A(*THEN)B|A(*THEN)C/K
AC
/A(*PRUNE)B|A(*PRUNE)C/K
AC
/--- A whole lot of tests of verbs with arguments are here rather than in test
11 because Perl doesn't seem to follow its specification entirely
correctly. ---/
/--- Perl 5.11 sets $REGERROR on the AC failure case here; PCRE does not. It is
not clear how Perl defines "involved in the failure of the match". ---/
/^(A(*THEN:A)B|C(*THEN:B)D)/K
AB
CD
** Failers
AC
CB
/--- Check the use of names for success and failure. PCRE doesn't show these
names for success, though Perl does, contrary to its spec. ---/
/^(A(*PRUNE:A)B|C(*PRUNE:B)D)/K
AB
CD
** Failers
AC
CB
/--- 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
CD
/--- PRUNE goes to next bumpalong; COMMIT does not. ---/
/A(*PRUNE:A)B/K
ACAB
/(*MARK:A)(*PRUNE:B)(C|X)/K
C
D
/(*MARK:A)(*THEN:B)(C|X)/K
C
D
/--- This should fail, as the skip causes a bump to offset 3 (the skip) ---/
/A(*MARK:A)A+(*SKIP)(B|Z) | AC/xK
AAAC
/--- Same --/
/A(*MARK:A)A+(*MARK:B)(*SKIP:B)(B|Z) | AC/xK
AAAC
/--- This should fail; the SKIP advances by one, but when we get to AC, the
PRUNE kills it. ---/
/A(*PRUNE:A)A+(*SKIP:A)(B|Z) | AC/xK
AAAC
/A(*:A)A+(*SKIP)(B|Z) | AC/xK
AAAC
/--- This should fail, as a null name is the same as no name ---/
/A(*MARK:A)A+(*SKIP:)(B|Z) | AC/xK
AAAC
/--- This fails in PCRE, and I think that is in accordance with Perl's
documentation, though in Perl it succeeds. ---/
/A(*MARK:A)A+(*SKIP:B)(B|Z) | AAC/xK
AAAC
/--- Mark names can be duplicated ---/
/A(*:A)B|X(*:A)Y/K
AABC
XXYZ
/^A(*:A)B|^X(*:A)Y/K
** Failers
XAQQ
/--- 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
XXYZ
** Failers
XAQQ
XAQQXZZ
AXQQQ
AXXQQQ
/--- COMMIT at the start of a pattern should be the same as an anchor. Perl
optimizations defeat this. So does the PCRE optimization unless we disable it
with \Y. ---/
/(*COMMIT)ABC/
ABCDEFG
** Failers
DEFGABC\Y
/--- Repeat some tests with added studying. ---/
/A(*COMMIT)B/+KS
ACABX
/A(*THEN)B|A(*THEN)C/KS
AC
/A(*PRUNE)B|A(*PRUNE)C/KS
AC
/^(A(*THEN:A)B|C(*THEN:B)D)/KS
AB
CD
** Failers
AC
CB
/^(A(*PRUNE:A)B|C(*PRUNE:B)D)/KS
AB
CD
** Failers
AC
CB
/^(A(*PRUNE:)B|C(*PRUNE:B)D)/KS
AB
CD
/A(*PRUNE:A)B/KS
ACAB
/(*MARK:A)(*PRUNE:B)(C|X)/KS
C
D
/(*MARK:A)(*THEN:B)(C|X)/KS
C
D
/A(*MARK:A)A+(*SKIP)(B|Z) | AC/xKS
AAAC
/A(*MARK:A)A+(*MARK:B)(*SKIP:B)(B|Z) | AC/xKS
AAAC
/A(*PRUNE:A)A+(*SKIP:A)(B|Z) | AC/xKS
AAAC
/A(*:A)A+(*SKIP)(B|Z) | AC/xKS
AAAC
/A(*MARK:A)A+(*SKIP:)(B|Z) | AC/xKS
AAAC
/A(*MARK:A)A+(*SKIP:B)(B|Z) | AAC/xKS
AAAC
/A(*:A)B|XX(*:B)Y/KS
AABC
XXYZ
** Failers
XAQQ
XAQQXZZ
AXQQQ
AXXQQQ
/(*COMMIT)ABC/
ABCDEFG
** Failers
DEFGABC\Y
/^(ab (c+(*THEN)cd) | xyz)/x
abcccd
/^(ab (c+(*PRUNE)cd) | xyz)/x
abcccd
/^(ab (c+(*FAIL)cd) | xyz)/x
abcccd
/--- Perl 5.11 gets some of these wrong ---/
/(?>.(*ACCEPT))*?5/
abcde
/(.(*ACCEPT))*?5/
abcde
/(.(*ACCEPT))5/
abcde
/(.(*ACCEPT))*5/
abcde
/A\NB./BZ
ACBD
*** Failers
A\nB
ACB\n
/A\NB./sBZ
ACBD
ACB\n
*** Failers
A\nB
/A\NB/<crlf>
A\nB
A\rB
** Failers
A\r\nB
/\R+b/BZ
/\R+\n/BZ
/\R+\d/BZ
/\d*\R/BZ
/\s*\R/BZ
/-- Perl treats this one differently, not failing the second string. I believe
that is a bug in Perl. --/
/^((abc|abcx)(*THEN)y|abcd)/
abcd
*** Failers
abcxy
/(?<=abc)def/
abc\P\P
/abc$/
abc
abc\P
abc\P\P
/abc$/m
abc
abc\n
abc\P\P
abc\n\P\P
abc\P
abc\n\P
/abc\z/
abc
abc\P
abc\P\P
/abc\Z/
abc
abc\P
abc\P\P
/abc\b/
abc
abc\P
abc\P\P
/abc\B/
abc
abc\P
abc\P\P
/.+/
abc\>0
abc\>1
abc\>2
abc\>3
abc\>4
abc\>-4
/^\cģ/
/(?P<abn>(?P=abn)xxx)/BZ
/(a\1z)/BZ
/(?P<abn>(?P=abn)(?<badstufxxx)/BZ
/(?P<abn>(?P=axn)xxx)/BZ
/(?P<abn>(?P=axn)xxx)(?<axn>yy)/BZ
/-- End of testinput2 --/