📄 testinput3
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/(?<!bar)foo/ foo catfood arfootle rfoosh *** Failers barfoo towbarfoo/\w{3}(?<!bar)foo/ catfood *** Failers foo barfoo towbarfoo/(?<=(foo)a)bar/ fooabar *** Failers bar foobbar /\Aabc\z/m abc *** Failers abc\n qqq\nabc abc\nzzz qqq\nabc\nzzz"(?>.*/)foo" /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/it/you/see/"(?>.*/)foo" /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/and/foo/(?>(\.\d\d[1-9]?))\d+/ 1.230003938 1.875000282 *** Failers 1.235 /^((?>\w+)|(?>\s+))*$/ 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)/ 12345a 12345+ /((?>\d+))(\w)/ 12345a *** Failers 12345+ /(?>a+)b/ aaab/((?>a+)b)/ aaab/(?>(a+))b/ aaab/(?>b)+/ aaabbbccc/(?>a+|b+|c+)*c/ aaabbbbccccd/((?>[^()]+)|\([^()]*\))+/ ((abc(ade)ufh()()x /\(((?>[^()]+)|\([^()]+\))+\)/ (abc) (abc(def)xyz) *** Failers ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa /a(?-i)b/i ab *** Failers Ab aB AB /(a (?x)b c)d e/ a bcd e *** Failers a b cd e abcd e a bcde /(a b(?x)c d (?-x)e f)/ a bcde f *** Failers abcdef /(a(?i)b)c/ abc aBc *** Failers abC aBC Abc ABc ABC AbC /a(?i:b)c/ abc aBc *** Failers ABC abC aBC /a(?i:b)*c/ aBc aBBc *** Failers aBC aBBC /a(?=b(?i)c)\w\wd/ abcd abCd *** Failers aBCd abcD /(?s-i:more.*than).*million/i more than million more than MILLION more \n than Million *** Failers MORE THAN MILLION more \n than \n million /(?:(?s-i)more.*than).*million/i more than million more than MILLION more \n than Million *** Failers MORE THAN MILLION more \n than \n million /(?>a(?i)b+)+c/ abc aBbc aBBc *** Failers Abc abAb abbC /(?=a(?i)b)\w\wc/ abc aBc *** Failers Ab abC aBC /(?<=a(?i)b)(\w\w)c/ abxxc aBxxc *** Failers Abxxc ABxxc abxxC /(?:(a)|b)(?(1)A|B)/ aA bB *** Failers aB bA /^(a)?(?(1)a|b)+$/ aa b bb *** Failers ab /^(?(?=abc)\w{3}:|\d\d)$/ abc: 12 *** Failers 123 xyz /^(?(?!abc)\d\d|\w{3}:)$/ abc: 12 *** Failers 123 xyz /(?(?<=foo)bar|cat)/ foobar cat fcat focat *** Failers foocat /(?(?<!foo)cat|bar)/ foobar cat fcat focat *** Failers foocat /( \( )? [^()]+ (?(1) \) |) /x abcd (abcd) the quick (abcd) fox (abcd /( \( )? [^()]+ (?(1) \) ) /x abcd (abcd) the quick (abcd) fox (abcd /^(?(2)a|(1)(2))+$/ 12 12a 12aa *** Failers 1234 /((?i)blah)\s+\1/ blah blah BLAH BLAH Blah Blah blaH blaH *** Failers blah BLAH Blah blah blaH blah /((?i)blah)\s+(?i:\1)/ blah blah BLAH BLAH Blah Blah blaH blaH blah BLAH Blah blah blaH blah /(?>a*)*/ a aa aaaa /(abc|)+/ abc abcabc abcabcabc xyz /([a]*)*/ a aaaaa /([ab]*)*/ a b ababab aaaabcde bbbb /([^a]*)*/ b bbbb aaa /([^ab]*)*/ cccc abab /([a]*?)*/ a aaaa /([ab]*?)*/ a b abab baba /([^a]*?)*/ b bbbb aaa /([^ab]*?)*/ c cccc baba /(?>a*)*/ a aaabcde /((?>a*))*/ aaaaa aabbaa /((?>a*?))*/ aaaaa aabbaa /(?(?=[^a-z]+[a-z]) \d{2}-[a-z]{3}-\d{2} | \d{2}-\d{2}-\d{2} ) /x 12-sep-98 12-09-98 *** Failers sep-12-98 /(?<=(foo))bar\1/ foobarfoo foobarfootling *** Failers foobar barfoo /(?i:saturday|sunday)/ saturday sunday Saturday Sunday SATURDAY SUNDAY SunDay /(a(?i)bc|BB)x/ abcx aBCx bbx BBx *** Failers abcX aBCX bbX BBX /^([ab](?i)[cd]|[ef])/ ac aC bD elephant Europe frog France *** Failers Africa /^(ab|a(?i)[b-c](?m-i)d|x(?i)y|z)/ ab aBd xy xY zebra Zambesi *** Failers aCD XY /(?<=foo\n)^bar/m foo\nbar *** Failers bar baz\nbar /(?<=(?<!foo)bar)baz/ barbaz barbarbaz koobarbaz *** Failers baz foobarbaz /The case of aaaaaa is missed out below because I think Perl 5.005_02 gets//it wrong; it sets $1 to aaa rather than aa. Compare the following test,//where it does set $1 to aa when matching aaaaaa.//^(a\1?){4}$/ a aa aaa aaaa aaaaa aaaaaaa aaaaaaaa aaaaaaaaa aaaaaaaaaa aaaaaaaaaaa aaaaaaaaaaaa aaaaaaaaaaaaa aaaaaaaaaaaaaa aaaaaaaaaaaaaaa aaaaaaaaaaaaaaaa /^(a\1?)(a\1?)(a\2?)(a\3?)$/ a aa aaa aaaa aaaaa aaaaaa aaaaaaa aaaaaaaa aaaaaaaaa aaaaaaaaaa aaaaaaaaaaa aaaaaaaaaaaa aaaaaaaaaaaaa aaaaaaaaaaaaaa aaaaaaaaaaaaaaa aaaaaaaaaaaaaaaa /The following tests are taken from the Perl 5.005 test suite; some of them//are compatible with 5.004, but I'd rather not have to sort them out.//abc/ abc xabcy ababc *** Failers xbc axc abx/ab*c/ abc/ab*bc/ abc abbc abbbbc/.{1}/ abbbbc/.{3,4}/ abbbbc/ab{0,}bc/ abbbbc/ab+bc/ abbc *** Failers abc abq/ab{1,}bc//ab+bc/ abbbbc/ab{1,}bc/ abbbbc/ab{1,3}bc/ abbbbc/ab{3,4}bc/ abbbbc/ab{4,5}bc/ *** Failers abq abbbbc/ab?bc/ abbc abc/ab{0,1}bc/ abc/ab?bc//ab?c/ abc/ab{0,1}c/ abc/^abc$/ abc *** Failers abbbbc abcc/^abc/ abcc/^abc$//abc$/ aabc *** Failers aabc aabcd/^/ abc/$/ abc/a.c/ abc axc/a.*c/ axyzc/a[bc]d/ abd *** Failers axyzd abc/a[b-d]e/ ace/a[b-d]/ aac/a[-b]/ a-/a[b-]/ a-/a]/ a]/a[]]b/ a]b/a[^bc]d/ aed *** Failers abd abd/a[^-b]c/ adc/a[^]b]c/ adc *** Failers a-c a]c/\ba\b/ a- -a -a-/\by\b/ *** Failers xy yz xyz/\Ba\B/ *** Failers a- -a -a-/\By\b/ xy/\by\B/ yz/\By\B/ xyz/\w/ a/\W/ - *** Failers - a/a\sb/ a b/a\Sb/ a-b *** Failers a-b a b/\d/ 1/\D/ - *** Failers - 1/[\w]/ a/[\W]/ - *** Failers - a/a[\s]b/ a b/a[\S]b/ a-b *** Failers a-b a b/[\d]/ 1/[\D]/ - *** Failers - 1/ab|cd/ abc abcd/()ef/ def/$b//a\(b/ a(b/a\(*b/ ab a((b/a\\b/ a\b/((a))/ abc/(a)b(c)/ abc/a+b+c/ aabbabc/a{1,}b{1,}c/ aabbabc/a.+?c/ abcabc/(a+|b)*/ ab/(a+|b){0,}/ ab/(a+|b)+/ ab/(a+|b){1,}/ ab/(a+|b)?/ ab/(a+|b){0,1}/ ab/[^ab]*/ cde/abc/ *** Failers b /a*/ /([abc])*d/ abbbcd/([abc])*bcd/ abcd/a|b|c|d|e/ e/(a|b|c|d|e)f/ ef/abcd*efg/ abcdefg/ab*/ xabyabbbz xayabbbz/(ab|cd)e/ abcde/[abhgefdc]ij/ hij/^(ab|cd)e//(abc|)ef/ abcdef/(a|b)c*d/ abcd/(ab|ab*)bc/ abc/a([bc]*)c*/ abc/a([bc]*)(c*d)/ abcd/a([bc]+)(c*d)/ abcd/a([bc]*)(c+d)/ abcd/a[bcd]*dcdcde/ adcdcde/a[bcd]+dcdcde/ *** Failers abcde adcdcde/(ab|a)b*c/ abc/((a)(b)c)(d)/ abcd/[a-zA-Z_][a-zA-Z0-9_]*/ alpha/^a(bc+|b[eh])g|.h$/ abh/(bc+d$|ef*g.|h?i(j|k))/ effgz ij reffgz *** Failers effg bcdd/((((((((((a))))))))))/ a/((((((((((a))))))))))\10/ aa/(((((((((a)))))))))/ a/multiple words of text/ *** Failers aa uh-uh/multiple words/ multiple words, yeah/(.*)c(.*)/ abcde/\((.*), (.*)\)/ (a, b)/[k]//abcd/ abcd/a(bc)d/ abcd/a[-]?c/ ac/(abc)\1/ abcabc/([a-c]*)\1/ abcabc/(a)|\1/ a *** Failers ab x/(([a-c])b*?\2)*/ ababbbcbc/(([a-c])b*?\2){3}/ ababbbcbc/((\3|b)\2(a)x)+/ aaaxabaxbaaxbbax/((\3|b)\2(a)){2,}/ bbaababbabaaaaabbaaaabba/abc/i ABC XABCY ABABC *** Failers aaxabxbaxbbx XBC AXC ABX/ab*c/i ABC/ab*bc/i ABC ABBC/ab*?bc/i ABBBBC/ab{0,}?bc/i ABBBBC⌨️ 快捷键说明
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