📄 testinput2
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/(a)b|//abc/ abc defabc \Aabc *** Failers \Adefabc ABC/^abc/ abc \Aabc *** Failers defabc \Adefabc/a+bc//a*bc//a{3}bc//(abc|a+z)//^abc$/ abc *** Failers def\nabc/ab\gdef/X/(?X)ab\gdef/X/x{5,4}//z{65536}//[abcd//[\B]//[a-\w]//[z-a]//^*//(abc//(?# abc//(?z)abc//.*b//.*?b//cat|dog|elephant/ this sentence eventually mentions a cat this sentences rambles on and on for a while and then reaches elephant/cat|dog|elephant/S this sentence eventually mentions a cat this sentences rambles on and on for a while and then reaches elephant/cat|dog|elephant/iS this sentence eventually mentions a CAT cat this sentences rambles on and on for a while to elephant ElePhant/a|[bcd]/S/(a|[^\dZ])/S/(a|b)*[\s]/S/(ab\2)//{4,5}abc//(a)(b)(c)\2/ abcb \O0abcb \O3abcb \O6abcb \O9abcb \O12abcb /(a)bc|(a)(b)\2/ abc \O0abc \O3abc \O6abc aba \O0aba \O3aba \O6aba \O9aba \O12aba/abc$/E abc *** Failers abc\n abc\ndef/(a)(b)(c)(d)(e)\6//the quick brown fox/ the quick brown fox this is a line with the quick brown fox/the quick brown fox/A the quick brown fox *** Failers this is a line with the quick brown fox/ab(?z)cd//^abc|def/ abcdef abcdef\B/.*((abc)$|(def))/ defabc \Zdefabc/abc/P abc *** Failers /^abc|def/P abcdef abcdef\B/.*((abc)$|(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$/P abc abc\n /(abc)\2/P/(abc\1)/P abc/)//a[]b//[^aeiou ]{3,}/ co-processors, and for /<.*>/ abc<def>ghi<klm>nop/<.*?>/ abc<def>ghi<klm>nop/<.*>/U abc<def>ghi<klm>nop /<.*>(?U)/ abc<def>ghi<klm>nop/<.*?>/U abc<def>ghi<klm>nop /={3,}/U abc========def /(?U)={3,}?/ abc========def /(?<!bar|cattle)foo/ foo catfoo *** Failers the barfoo and cattlefoo /(?<=a+)b//(?<=aaa|b{0,3})b//(?<!(foo)a\1)bar//(?i)abc//(a|(?m)a)//(?i)^1234//(^b|(?i)^d)//(?s).*//[abcd]/S/(?i)[abcd]/S/(?m)[xy]|(b|c)/S/(^a|^b)/m/(?i)(^a|^b)/m/(a)(?(1)a|b|c)//(?(?=a)a|b|c)//(?(1a)//(?(?i))//(?(abc))//(?(?<ab))//((?s)blah)\s+\1//((?i)blah)\s+\1//((?i)b)/DS/(a*b|(?i:c*(?-i)d))/S/a$/ a a\n *** Failers \Za \Za\n /a$/m a a\n \Za\n *** Failers \Za /\Aabc/m/^abc/m /^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/ aaaaabbbbbcccccdef/(?<=foo)[ab]/S/(?<!foo)(alpha|omega)/S/(?!alphabet)[ab]/S/(?<=foo\n)^bar/m/(?>^abc)/m abc def\nabc *** Failers defabc /(?<=ab(c+)d)ef//(?<=ab(?<=c+)d)ef//(?<=ab(c|de)f)g//The next three are in testinput2 because they have variable length branches//(?<=bullock|donkey)-cart/ the bullock-cart a donkey-cart race *** Failers cart horse-and-cart /(?<=ab(?i)x|y|z)//(?>.*)(?<=(abcd)|(xyz))/ alphabetabcd endingxyz/(?<=ab(?i)x(?-i)y|(?i)z|b)ZZ/ abxyZZ abXyZZ ZZZ zZZ bZZ BZZ *** Failers ZZ abXYZZ zzz bzz /(?<!(foo)a)bar/ bar foobbar *** Failers fooabar /This one is here because Perl 5.005_02 doesn't fail it//^(a)?(?(1)a|b)+$/ *** Failers a /This one is here because I think Perl 5.005_02 gets the setting of $1 wrong//^(a\1?){4}$/ aaaaaa /These are syntax tests from Perl 5.005//a[b-a]//a[]b//a[//*a//(*)b//abc)//(abc//a**//)(//\1//\2//(a)|\2//a[b-a]/i/a[]b/i/a[/i/*a/i/(*)b/i/abc)/i/(abc/i/a**/i/)(/i/:(?://(?<%)b//a(?{)b//a(?{{})b//a(?{}})b//a(?{"{"})b//a(?{"{"}})b//(?(1?)a|b)//(?(1)a|b|c)//[a[:xyz://(?<=x+)y//a{37,17}//abc/\/abc/\P/abc/\i/(a)bc(d)/ abcd abcd\C2 abcd\C5 /(.{20})/ abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz\C1 abcdefghijklmnopqrstuvwxyz\G1 /(.{15})/ abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz\C1\G1/(.{16})/ abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz\C1\G1\L /^(a|(bc))de(f)/ adef\G1\G2\G3\G4\L bcdef\G1\G2\G3\G4\L adefghijk\C0 /^abc\00def/ 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/M/.*X/D/.*X/Ds/(.*X|^B)/D/(.*X|^B)/Ds /(?s)(.*X|^B)/D/(?s:.*X|^B)/D/\Biss\B/+ Mississippi/\Biss\B/+P Mississippi/iss/G+ Mississippi/\Biss\B/G+ Mississippi/\Biss\B/g+ Mississippi *** Failers Mississippi\A/(?<=[Ms])iss/g+ Mississippi/(?<=[Ms])iss/G+ Mississippi/^iss/g+ ississippi /.*iss/g+ abciss\nxyzisspqr /.i./+g Mississippi Mississippi\A Missouri river Missouri river\A /^.is/+g Mississippi/^ab\n/g+ ab\nab\ncd/^ab\n/mg+ ab\nab\ncd/abc//abc|bac//(abc|bac)//(abc|(c|dc))//(abc|(d|de)c)//a*//a+//(baa|a+)//a{0,3}//baa{3,}//"([^\\"]+|\\.)*"//(abc|ab[cd])//(a|.)//a|ba|\w//abc(?=pqr)//...(?<=abc)//abc(?!pqr)//ab.//ab[xyz]//abc*//ab.c*//a.c*//.c*//ac*//(a.c*|b.c*)//a.c*|aba//.+a//(?=abcda)a.*//(?=a)a.*//a(b)*//a\d*//ab\d*//a(\d)*//abcde{0,0}//ab\d+//a(?(1)b)//a(?(1)bag|big)//a(?(1)bag|big)*//a(?(1)bag|big)+//a(?(1)b..|b..)//ab\d{0}e//a?b?/ a b ab \ *** Failers \N /|-/ 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/S /\( # ( at start (?: # Non-capturing bracket (?>[^()]+) # Either a sequence of non-brackets (no backtracking) | # Or (?R) # Recurse - i.e. nested bracketed string )* # Zero or more contents \) # Closing ) /x (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 /\( ( (?>[^()]+) | (?R) )* \) /xg (ab(xy)cd)pqr 1(abcd)(x(y)z)pqr/\( (?: (?>[^()]+) | (?R) ) \) /x (abcd) (ab(xy)cd) (a(b(c)d)e) ((ab)) *** Failers () /\( (?: (?>[^()]+) | (?R) )? \) /x () 12(abcde(fsh)xyz(foo(bar))lmno)89/\( ( (?>[^()]+) | (?R) )* \) /x (ab(xy)cd)/\( ( ( (?>[^()]+) | (?R) )* ) \) /x (ab(xy)cd)/\( (123)? ( ( (?>[^()]+) | (?R) )* ) \) /x (ab(xy)cd) (123ab(xy)cd)/\( ( (123)? ( (?>[^()]+) | (?R) )* ) \) /x (ab(xy)cd) (123ab(xy)cd)/\( (((((((((( ( (?>[^()]+) | (?R) )* )))))))))) \) /x (ab(xy)cd)/\( ( ( (?>[^()<>]+) | ((?>[^()]+)) | (?R) )* ) \) /x (abcd(xyz<p>qrs)123)/\( ( ( (?>[^()]+) | ((?R)) )* ) \) /x (ab(cd)ef) (ab(cd(ef)gh)ij)/^[[:alnum:]]/D/^[[:alpha:]]/D /^[[:ascii:]]/D/^[[:cntrl:]]/D/^[[:digit:]]/D/^[[:graph:]]/D/^[[:lower:]]/D/^[[:print:]]/D/^[[:punct:]]/D/^[[:space:]]/D/^[[:upper:]]/D/^[[:xdigit:]]/D/^[[:word:]]/D/^[[:^cntrl:]]/D/^[12[:^digit:]]/D/[01[:alpha:]%]/D/[[.ch.]]//[[=ch=]]//[[:rhubarb:]]//[[:upper:]]/i A a /[[:lower:]]/i A a /((?-i)[[:lower:]])[[:lower:]]/i ab aB *** Failers Ab AB / End of test input /⌨️ 快捷键说明
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