cmd/re/pcre-3.dat

E   (?<!bar)foo foo (0,3)
E   SAME    catfood (3,6)
E   SAME    arfootle    (2,5)
E   SAME    rfoosh  (1,4)
E   SAME    barfoo  NOMATCH
E   SAME    towbarfoo   NOMATCH
E$  \\w{3}(?<!bar)foo   catfood (0,6)
E$  SAME    foo NOMATCH
E$  SAME    barfoo  NOMATCH
E$  SAME    towbarfoo   NOMATCH
E   (?<=(foo)a)bar  fooabar (4,7)(0,3)
E   SAME    bar NOMATCH
E   SAME    foobbar NOMATCH
E$n \\Aabc\\z   abc (0,3)
E$n SAME    abc\n   NOMATCH
E$n SAME    qqq\nabc    NOMATCH
E$n SAME    abc\nzzz    NOMATCH
E$n SAME    qqq\nabc\nzzz   NOMATCH
E   (?>.*/)foo  /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/it/you/see/ NOMATCH
E   (?>.*/)foo  /this/is/a/very/long/line/in/deed/with/very/many/slashes/in/and/foo (0,67)
E$  (?>(\\.\\d\\d[1-9]?))\\d+   1.230003938 (1,11)(1,4)
E$  SAME    1.875000282 (1,11)(1,5)
E$  SAME    1.235   NOMATCH
E$  ^((?>\\w+)|(?>\\s+))*$  now is the time for all good men to come to the aid of the party    (0,64)(59,64)
E$  SAME    this is not a line with only words and spaces!  NOMATCH
E$  (\\d+)(\\w) 12345a  (0,6)(0,5)(5,6)
E$  SAME    12345+  (0,5)(0,4)(4,5)
E$  ((?>\\d+))(\\w) 12345a  (0,6)(0,5)(5,6)
E$  SAME    12345+  NOMATCH
E   (?>a+)b aaab    (0,4)
E   ((?>a+)b)   aaab    (0,4)(0,4)
E   (?>(a+))b   aaab    (0,4)(0,3)
E   (?>b)   aaabbbccc   (3,4)
E   (?>b)*  aaabbbccc   (0,0)
E   (?>b)+  aaabbbccc   (3,6)
E   (?>(b))+    aaabbbccc   (3,6)(5,6)
E   ((?>b))+    aaabbbccc   (3,6)(5,6)
E   ((?>(b)))+  aaabbbccc   (3,6)(5,6)(5,6)
E   (?>b)+. aaabbbccc   (3,7)
E   (?:b)   aaabbbccc   (3,4)
E   (?:b)*  aaabbbccc   (0,0)
E   (?:b)+  aaabbbccc   (3,6)
E   (?:(b))+    aaabbbccc   (3,6)(5,6)
E   ((?:b))+    aaabbbccc   (3,6)(5,6)
E   ((?:(b)))+  aaabbbccc   (3,6)(5,6)(5,6)
E   (?:b)+. aaabbbccc   (3,7)
E   (a+|b+|c+)*c    aaabbbbccccd    (0,11)(7,10)
E   (?>a+|b+|c+)*c  aaabbbbccccd    (0,8)
E$  ((?>[^()]+)|\\([^()]*\\))+  ((abc(ade)ufh()()x  (2,18)(17,18)
E$  \\(((?>[^()]+)|\\([^()]+\\))+\\)    (abc)   (0,5)(1,4)
E$  SAME    (abc(def)xyz)   (0,13)(9,12)
E$  SAME    ((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa    NOMATCH
Ei  (?-i)ab ab  (0,2)
Ei  SAME    Ab  NOMATCH
Ei  SAME    aB  NOMATCH
Ei  SAME    AB  NOMATCH
E   (?i)ab  ab  (0,2)
E   SAME    Ab  (0,2)
E   SAME    aB  (0,2)
E   SAME    AB  (0,2)
Ei  a(?-i)b ab  (0,2)
Ei  SAME    Ab  (0,2)
Ei  SAME    aB  NOMATCH
Ei  SAME    AB  NOMATCH
E   a(?i)b  ab  (0,2)
E   SAME    Ab  NOMATCH
E   SAME    aB  (0,2)
E   SAME    AB  NOMATCH
Ei  (?-i)AB ab  NOMATCH
Ei  SAME    Ab  NOMATCH
Ei  SAME    aB  NOMATCH
Ei  SAME    AB  (0,2)
E   (?i)AB  ab  (0,2)
E   SAME    Ab  (0,2)
E   SAME    aB  (0,2)
E   SAME    AB  (0,2)
Ei  A(?-i)B ab  NOMATCH
Ei  SAME    Ab  NOMATCH
Ei  SAME    aB  (0,2)
Ei  SAME    AB  (0,2)
E   A(?i)B  ab  NOMATCH
E   SAME    Ab  (0,2)
E   SAME    aB  NOMATCH
E   SAME    AB  (0,2)
Ei  ^(?-i)ab    ab  (0,2)
Ei  SAME    Ab  NOMATCH
Ei  SAME    aB  NOMATCH
Ei  SAME    AB  NOMATCH
E   ^(?i)ab ab  (0,2)
E   SAME    Ab  (0,2)
E   SAME    aB  (0,2)
E   SAME    AB  (0,2)
Ei  ^a(?-i)b    ab  (0,2)
Ei  SAME    Ab  (0,2)
Ei  SAME    aB  NOMATCH
Ei  SAME    AB  NOMATCH
E   ^a(?i)b ab  (0,2)
E   SAME    Ab  NOMATCH
E   SAME    aB  (0,2)
E   SAME    AB  NOMATCH
Ei  ^(?-i)AB    ab  NOMATCH
Ei  SAME    Ab  NOMATCH
Ei  SAME    aB  NOMATCH
Ei  SAME    AB  (0,2)
E   ^(?i)AB ab  (0,2)
E   SAME    Ab  (0,2)
E   SAME    aB  (0,2)
E   SAME    AB  (0,2)
Ei  ^A(?-i)B    ab  NOMATCH
Ei  SAME    Ab  NOMATCH
Ei  SAME    aB  (0,2)
Ei  SAME    AB  (0,2)
E   ^A(?i)B ab  NOMATCH
E   SAME    Ab  (0,2)
E   SAME    aB  NOMATCH
E   SAME    AB  (0,2)
E   (a (?x)b c)d e  a bcde  NOMATCH
E   (a (?x)b c)d e  a bcd e (0,7)(0,4)
E   SAME    a b cd e    NOMATCH
E   SAME    abcd e  NOMATCH
E   SAME    a bcde  NOMATCH
E   (a b(?x)c d (?-x)e f)   a bcde f    (0,8)(0,8)
E   SAME    abcdef  NOMATCH
E   (a(?i)b)c   abc (0,3)(0,2)
E   SAME    aBc (0,3)(0,2)
E   SAME    abC NOMATCH
E   SAME    aBC NOMATCH
E   SAME    Abc NOMATCH
E   SAME    ABc NOMATCH
E   SAME    ABC NOMATCH
E   SAME    AbC NOMATCH
E   a(?i:b)c    abc (0,3)
E   SAME    aBc (0,3)
E   SAME    ABC NOMATCH
E   SAME    abC NOMATCH
E   SAME    aBC NOMATCH
E   a(?i:b)*c   aBc (0,3)
E   SAME    aBBc    (0,4)
E   SAME    aBC NOMATCH
E   SAME    aBBC    NOMATCH
E$  a(?=b(?i)c)\\w\\wd  abcd    (0,4)
E$  SAME    abCd    (0,4)
E$  SAME    aBCd    NOMATCH
E$  SAME    abcD    NOMATCH
Ei  (?s-i:more.*than).*million  more than million   (0,17)
Ei  SAME    more than MILLION   (0,17)
Ei$ SAME    more \n than Million    (0,19)
Ei$ SAME    MORE THAN MILLION   NOMATCH
Ei$ SAME    more \n than \n million (0,21)
Ei  (?:(?s-i)more.*than).*million   more than million   (0,17)
Ei  SAME    more than MILLION   (0,17)
Ei$ SAME    more \n than Million    (0,19)
Ei$ SAME    MORE THAN MILLION   NOMATCH
Ei$ SAME    more \n than \n million (0,21)
E   (?>a(?i)b+)+c   abc (0,3)
E   SAME    aBbc    (0,4)
E   SAME    aBBc    (0,4)
E   SAME    Abc NOMATCH
E   SAME    abAb    NOMATCH
E   SAME    abbC    NOMATCH
E$  (?=a(?i)b)\\w\\wc   abc (0,3)
E$  SAME    aBc (0,3)
E$  SAME    Ab  NOMATCH
E$  SAME    abC NOMATCH
E$  SAME    aBC NOMATCH
E$  (?<=a(?i)b)(\\w\\w)c    abxxc   (2,5)(2,4)
E$  SAME    aBxxc   (2,5)(2,4)
E$  SAME    Abxxc   NOMATCH
E$  SAME    ABxxc   NOMATCH
E$  SAME    abxxC   NOMATCH
E   (?:(a)|b)(?(1)A|B)  aA  (0,2)(0,1)
E   SAME    bB  (0,2)
E   SAME    aB  NOMATCH
E   SAME    bA  NOMATCH
E   (a)?(?(1)a|b)   aa  (0,2)(0,1)
E   (a)?(?(1)a|b)+  aa  (0,2)(0,1)
E   ^(a)?(?(1)a|b)+$    aa  (0,2)(0,1)
E   SAME    b   (0,1)
E   SAME    bb  (0,2)
E   SAME    ab  NOMATCH
E$  \\w\\w\\w:      abc:    (0,4)
E$  \\d\\d          12  (0,2)
E$  (?(?=abc)\\w\\w\\w:|\\d\\d) abc:    (0,4)
E$  ^(?(?=abc)\\w\\w\\w:|\\d\\d)$   abc:    (0,4)
E$  ^(?(?=abc)\\w{3}:|\\d\\d)$  abc:    (0,4)
E$  SAME    12  (0,2)
E$  SAME    123 NOMATCH
E$  SAME    xyz NOMATCH
E$  ^(?(?!abc)\\d\\d|\\w{3}:)$  abc:    (0,4)
E$  ^(?(?!abc)\\d\\d|\\w\\w\\w:)$   abc:    (0,4)
E$  SAME    12  (0,2)
E$  SAME    123 NOMATCH
E$  SAME    xyz NOMATCH
E   (?(?<=foo)bar|cat)  foobar  (3,6)
E   SAME    cat (0,3)
E   SAME    fcat    (1,4)
E   SAME    focat   (2,5)
E   SAME    foocat  NOMATCH
E   (?(?<!foo)cat|bar)  foobar  (3,6)
E   SAME    cat (0,3)
E   SAME    fcat    (1,4)
E   SAME    focat   (2,5)
E   SAME    foocat  NOMATCH
E$cz    ( \\( )? [^()]+ (?(1) \\) |)    abcd    (0,4)
E$cz    SAME    (abcd)  (0,6)(0,1)
E$cz    SAME    the quick (abcd) fox    (0,10)
E$cz    SAME    (abcd   (1,5)
E$cz    ( \\( )? [^()]+ (?(1) \\) ) abcd    (0,4)
E$cz    SAME    (abcd)  (0,6)(0,1)
E$cz    SAME    the quick (abcd) fox    (0,10)
E$cz    SAME    (abcd   (1,5)
E$  ((?i)blah)\\s+\\1   blah blah   (0,9)(0,4)
E$  SAME    BLAH BLAH   (0,9)(0,4)
E$  SAME    Blah Blah   (0,9)(0,4)
E$  SAME    blaH blaH   (0,9)(0,4)
E$  SAME    blah BLAH   NOMATCH
E$  SAME    Blah blah   NOMATCH
E$  SAME    blaH blah   NOMATCH
E$  ((?i)blah)\\s+(?i:\\1)  blah blah   (0,9)(0,4)
E$  SAME    BLAH BLAH   (0,9)(0,4)
E$  SAME    Blah Blah   (0,9)(0,4)
E$  SAME    blaH blaH   (0,9)(0,4)
E$  SAME    blah BLAH   (0,9)(0,4)
E$  SAME    Blah blah   (0,9)(0,4)
E$  SAME    blaH blah   (0,9)(0,4)
E   (?>a*)* a   (0,1)
E   SAME    aa  (0,2)
E   SAME    aaaa    (0,4)
Ez  (abc|)+ abc (0,3)(0,3)
Ez  SAME    abcabc  (0,6)(3,6)
Ez  SAME    abcabcabc   (0,9)(6,9)
Ez  SAME    xyz (0,0)(0,0)
E   ([a]*)* a   (0,1)(0,1)
E   SAME    aaaaa   (0,5)(0,5)
E   ([ab]*)*    a   (0,1)(0,1)
E   SAME    b   (0,1)(0,1)
E   SAME    ababab  (0,6)(0,6)
E   SAME    aaaabcde    (0,5)(0,5)
E   SAME    bbbb    (0,4)(0,4)
E   ([^a]*)*    b   (0,1)(0,1)
E   SAME    bbbb    (0,4)(0,4)
E   SAME    aaa (0,0)(0,0)
E   ([^ab]*)*   cccc    (0,4)(0,4)
E   SAME    abab    (0,0)(0,0)
E   ([a]*?)*    a   (0,0)(0,0)
E   SAME    aaaa    (0,0)(0,0)
E   ([ab]*?)*   a   (0,0)(0,0)
E   SAME    b   (0,0)(0,0)
E   SAME    abab    (0,0)(0,0)
E   SAME    baba    (0,0)(0,0)
E   ([^a]*?)*   b   (0,0)(0,0)
E   SAME    bbbb    (0,0)(0,0)
E   SAME    aaa (0,0)(0,0)
E   ([^ab]*?)*  c   (0,0)(0,0)
E   SAME    cccc    (0,0)(0,0)
E   SAME    baba    (0,0)(0,0)
E   (?>a*)* a   (0,1)
E   SAME    aaabcde (0,3)
E   ((?>a*))*   aaaaa   (0,5)(0,5)
E   SAME    aabbaa  (0,2)(0,2)
E   ((?>a*)*)   aaaaa   (0,5)(0,5)
E   SAME    aabbaa  (0,2)(0,2)
E   ((?>a*?))*  aaaaa   (0,0)(0,0)
E   SAME    aabbaa  (0,0)(0,0)
E   ((?>a*?)*)  aaaaa   (0,0)(0,0)
E   SAME    aabbaa  (0,0)(0,0)
E$c (?(?=[^a-z]+[a-z])  \\d{2}-[a-z]{3}-\\d{2}  |  \\d{2}-\\d{2}-\\d{2} )   12-sep-98   (0,9)
E$c SAME    12-09-98    (0,8)
E$c SAME    sep-12-98   NOMATCH
E$  (?<=(foo))bar\\1    foobarfoo   (3,9)(0,3)
E$  SAME    foobarfootling  (3,9)(0,3)
E$  SAME    foobar  NOMATCH
E$  SAME    barfoo  NOMATCH
E   (?i:saturday|sunday)    saturday    (0,8)
E   SAME    sunday  (0,6)
E   SAME    Saturday    (0,8)
E   SAME    Sunday  (0,6)
E   SAME    SATURDAY    (0,8)
E   SAME    SUNDAY  (0,6)
E   SAME    SunDay  (0,6)
E   (a(?i)bc|BB)x   abcx    (0,4)(0,3)
E   SAME    aBCx    (0,4)(0,3)
E   SAME    bbx (0,3)(0,2)
E   SAME    BBx (0,3)(0,2)
E   SAME    abcX    NOMATCH
E   SAME    aBCX    NOMATCH
E   SAME    bbX NOMATCH
E   SAME    BBX NOMATCH
E   ^([ab](?i)[cd]|[ef])    ac  (0,2)(0,2)
E   SAME    aC  (0,2)(0,2)
E   SAME    bD  (0,2)(0,2)
E   SAME    elephant    (0,1)(0,1)
E   SAME    Europe  (0,1)(0,1)
E   SAME    frog    (0,1)(0,1)
E   SAME    France  (0,1)(0,1)
E   SAME    Africa  NOMATCH
E   ^(ab|a(?i)[b-c](?m-i)d|x(?i)y|z)    ab  (0,2)(0,2)
E   SAME    aBd (0,3)(0,3)
E   SAME    xy  (0,2)(0,2)
E   SAME    xY  (0,2)(0,2)
E   SAME    zebra   (0,1)(0,1)
E   SAME    Zambesi (0,1)(0,1)
E   SAME    aCD NOMATCH
E   SAME    XY  NOMATCH
E$n (?<=foo\\n)^bar foo\nbar    (4,7)
E$n SAME    bar NOMATCH
E$n SAME    baz\nbar    NOMATCH
E   (?<=(?<!foo)bar)baz barbaz  (3,6)
E   SAME    barbarbaz   (6,9)
E   SAME    koobarbaz   (6,9)
E   SAME    baz NOMATCH
E   SAME    foobarbaz   NOMATCH
E   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,/   NOMATCH
E   SAME    /where it does set $1 to aa when matching aaaaaa./  NOMATCH
E$  ^(a\\1?){4}$    a   ESUBREG
E$  ^((a)\\2?){4}$  a   NOMATCH
E$  SAME    aa  NOMATCH
E$  SAME    aaa NOMATCH
E$  SAME    aaaa    (0,4)(3,4)(3,4)
E$  SAME    aaaaa   (0,5)(4,5)(4,5)
E$  SAME    aaaaaaa (0,7)(6,7)(6,7)
E$  SAME    aaaaaaaa    (0,8)(6,8)(6,7)
E$  SAME    aaaaaaaaa   NOMATCH
E$  SAME    aaaaaaaaaa  NOMATCH
E$  SAME    aaaaaaaaaaa NOMATCH
E$  SAME    aaaaaaaaaaaa    NOMATCH
E$  SAME    aaaaaaaaaaaaa   NOMATCH
E$  SAME    aaaaaaaaaaaaaa  NOMATCH
E$  SAME    aaaaaaaaaaaaaaa NOMATCH
E$  SAME    aaaaaaaaaaaaaaaa    NOMATCH
E$  ^(aa?)(a\\1?)(a\\2?)(a\\3?)$    a   NOMATCH
E$  SAME    aa  NOMATCH
E$  SAME    aaa NOMATCH
E$  SAME    aaaa    (0,4)(0,1)(1,2)(2,3)(3,4)
E$  SAME    aaaaa   (0,5)(0,2)(2,3)(3,4)(4,5)
E$  SAME    aaaaaa  (0,6)(0,2)(2,3)(3,5)(5,6)
E$  SAME    aaaaaaa (0,7)(0,2)(2,5)(5,6)(6,7)
E$  SAME    aaaaaaaa    (0,8)(0,2)(2,5)(5,6)(6,8)
E$  SAME    aaaaaaaaa   NOMATCH
E$  SAME    aaaaaaaaaa  (0,10)(0,2)(2,5)(5,9)(9,10)
E$  SAME    aaaaaaaaaaa NOMATCH
E$  SAME    aaaaaaaaaaaa    NOMATCH
E$  SAME    aaaaaaaaaaaaa   NOMATCH
E$  SAME    aaaaaaaaaaaaaa  (0,14)(0,2)(2,5)(5,9)(9,14)
E$  SAME    aaaaaaaaaaaaaaa NOMATCH
E$  SAME    aaaaaaaaaaaaaaaa    NOMATCH
# 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.
E   abc abc (0,3)
E   SAME    xabcy   (1,4)
E   SAME    ababc   (2,5)
E   SAME    xbc NOMATCH
E   SAME    axc NOMATCH
E   SAME    abx NOMATCH
E   ab*c    abc (0,3)
E   ab*bc   abc (0,3)
E   SAME    abbc    (0,4)
E   SAME    abbbbc  (0,6)
E   .{1}    abbbbc  (0,1)
E   .{3,4}  abbbbc  (0,4)
E   ab{0,}bc    abbbbc  (0,6)
E   ab+bc   abbc    (0,4)
E   SAME    abc NOMATCH
E   SAME    abq NOMATCH
E   ab+bc   abbbbc  (0,6)
E   ab{1,}bc    abbbbc  (0,6)
E   ab{1,3}bc   abbbbc  (0,6)
E   ab{3,4}bc   abbbbc  (0,6)
E   ab{4,5}bc   abq NOMATCH
E   SAME    abbbbc  NOMATCH
E   ab?bc   abbc    (0,4)
E   SAME    abc (0,3)
E   ab{0,1}bc   abc (0,3)
E   ab?c    abc (0,3)
E   ab{0,1}c    abc (0,3)
E   ^abc$   abc (0,3)
E   SAME    abbbbc  NOMATCH
E   SAME    abcc    NOMATCH
E   ^abc    abcc    (0,3)
E   abc$    aabc    (1,4)
E   SAME    aabc    (1,4)
E   SAME    aabcd   NOMATCH
E   ^   abc (0,0)
E   $   abc (3,3)
E   a.c abc (0,3)
E   SAME    axc (0,3)
E   a.*c    axyzc   (0,5)
E   a[bc]d  abd (0,3)
E   SAME    axyzd   NOMATCH
E   SAME    abc NOMATCH
E   a[b-d]e ace (0,3)
E   a[b-d]  aac (1,3)
E   a[-b]   a-  (0,2)
E   a[b-]   a-  (0,2)
E   a]  a]  (0,2)
E   a[]]b   a]b (0,3)
E   a[^bc]d aed (0,3)
E   SAME    abd NOMATCH
E   SAME    abd NOMATCH
E   a[^-b]c adc (0,3)
E   a[^]b]c adc (0,3)
E   SAME    a-c (0,3)
E   SAME    a]c NOMATCH
E$  \\ba\\b a-  (0,1)
E$  SAME    -a  (1,2)
E$  SAME    -a- (1,2)
E$  \\by\\b xy  NOMATCH
E$  SAME    yz  NOMATCH
E$  SAME    xyz NOMATCH
E$  \\Ba\\B a-  NOMATCH
E$  SAME    -a  NOMATCH
E$  SAME    -a- NOMATCH
E$  \\By\\b xy  (1,2)
E$  \\by\\B yz  (0,1)
E$  \\By\\B xyz (1,2)
E$  \\w a   (0,1)
E$  \\W -   (0,1)
E$  SAME    -   (0,1)
E$  SAME    a   NOMATCH
E$  a\\sb   a b (0,3)
E$  a\\Sb   a-b (0,3)
E$  SAME    a-b (0,3)
E$  SAME    a b NOMATCH
E$  \\d 1   (0,1)
E$  \\D -   (0,1)
E$  SAME    -   (0,1)
E$  SAME    1   NOMATCH
E$v [\\w]   a   (0,1)
E$v [\\W]   -   (0,1)
E$v SAME    -   (0,1)
E$v SAME    a   NOMATCH
E$v a[\\s]b a b (0,3)
E$v a[\\S]b a-b (0,3)
E$v SAME    a-b (0,3)
E$v SAME    a b NOMATCH
E$v [\\d]   1   (0,1)
E$v [\\D]   -   (0,1)
E$v SAME    -   (0,1)
E$v SAME    1   NOMATCH
E   ab|cd   abc (0,2)
E   SAME    abcd    (0,2)
Ez  ()ef    def (1,3)(1,1)
E$  a\\(b   a(b (0,3)
E$  a\\(*b  ab  (0,2)
E$  SAME    a((b    (0,4)
E$  a\\\\b  a\b NOMATCH
E   ((a))   abc (0,1)(0,1)(0,1)
E   (a)b(c) abc (0,3)(0,1)(2,3)
E   a+b+c   aabbabc (4,7)
E   a{1,}b{1,}c aabbabc (4,7)
E   a.+?c   abcabc  (0,3)
E   (a+|b)* ab  (0,2)(1,2)
E   (a+|b){0,}  ab  (0,2)(1,2)
E   (a+|b)+ ab  (0,2)(1,2)
E   (a+|b){1,}  ab  (0,2)(1,2)
E   (a+|b)? ab  (0,1)(0,1)
E   (a+|b){0,1} ab  (0,1)(0,1)
E   [^ab]*  cde (0,3)
E   abc b   NOMATCH
E   ([abc])*d   abbbcd  (0,6)(4,5)
E   ([abc])*bcd abcd    (0,4)(0,1)
E   a|b|c|d|e   e   (0,1)
E   (a|b|c|d|e)f    ef  (0,2)(0,1)
E   abcd*efg    abcdefg (0,7)
E   ab* xabyabbbz   (1,3)
E   SAME    xayabbbz    (1,2)
E   (ab|cd)e    abcde   (2,5)(2,4)
E   [abhgefdc]ij    hij (0,3)
Ez  (abc|)ef    abcdef  (4,6)(4,4)
E   (a|b)c*d    abcd    (1,4)(1,2)
E   (ab|ab*)bc  abc (0,3)(0,1)
E   a([bc]*)c*  abc (0,3)(1,3)
E   a([bc]*)(c*d)   abcd    (0,4)(1,3)(3,4)
E   a([bc]+)(c*d)   abcd    (0,4)(1,3)(3,4)
E   a([bc]*)(c+d)   abcd    (0,4)(1,2)(2,4)
E   a[bcd]*dcdcde   adcdcde (0,7)
E   a[bcd]+dcdcde   abcde   NOMATCH
E   SAME    adcdcde NOMATCH
E   (ab|a)b*c   abc (0,3)(0,2)
E   ((a)(b)c)(d)    abcd    (0,4)(0,3)(0,1)(1,2)(3,4)
E   [a-zA-Z_][a-zA-Z0-9_]*  alpha   (0,5)
E   ^a(bc+|b[eh])g|.h$  abh (1,3)
E   (bc+d$|ef*g.|h?i(j|k))  effgz   (0,5)(0,5)
E   SAME    ij  (0,2)(0,2)(1,2)
E   SAME    reffgz  (1,6)(1,6)
E   SAME    effg    NOMATCH
E   SAME    bcdd    NOMATCH
E   ((((((((((a))))))))))   a   (0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
E$  ((((((((((a))))))))))\\10   aa  NOMATCH
E$  ((((((((((a))))))))))\\10   aa0 (0,3)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
E$  ((((((((((a))))))))))(?10)  aa  (0,2)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
E   (((((((((a))))))))) a   (0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
E   multiple words of text  aa  NOMATCH
E   SAME    uh-uh   NOMATCH
E   multiple words  multiple words, yeah    (0,14)
E   (.*)c(.*)   abcde   (0,5)(0,2)(3,5)
E$  \\((.*), (.*)\\)    (a, b)  (0,6)(1,2)(4,5)
E   abcd    abcd    (0,4)
E   a(bc)d  abcd    (0,4)(1,3)
E   a[-]?c  ac  (0,2)
E$  (abc)\\1    abcabc  (0,6)(0,3)
E$  ([a-c]*)\\1 abcabc  (0,6)(0,3)
E$  (a)|\\1 a   (0,1)(0,1)
E$  SAME    ab  (0,1)(0,1)
E$  SAME    x   NOMATCH
E$  (([a-c])b*?\\2)*    ababbbcbc   (0,5)(3,5)(3,4)
E$  (([a-c])b*?\\2){3}  ababbbcbc   (0,9)(6,9)(6,7)
E   ((a|b)\2(a)x)+      aaaxabaxbaaxbbax    (0,4)(0,4)(0,1)(2,3)
E$  ((\\3|b)\\2(a)x)+   aaaxabaxbaaxbbax    ESUBREG
E$  ((\\3|b)\\2(a)){2,} bbaababbabaaaaabbaaaabba    ESUBREG
Ei  abc ABC (0,3)
Ei  SAME    XABCY   (1,4)
Ei  SAME    ABABC   (2,5)
Ei  SAME    aaxabxbaxbbx    NOMATCH
Ei  SAME    XBC NOMATCH
Ei  SAME    AXC NOMATCH
Ei  SAME    ABX NOMATCH
Ei  ab*c    ABC (0,3)
Ei  ab*bc   ABC (0,3)
Ei  SAME    ABBC    (0,4)
Ei  ab*?bc  ABBBBC  (0,6)
Ei  ab{0,}?bc   ABBBBC  (0,6)
Ei  ab+?bc  ABBC    (0,4)
Ei  ab+bc   ABC NOMATCH
Ei  SAME    ABQ NOMATCH
Ei  ab+bc   ABBBBC  (0,6)
Ei  ab{1,}?bc   ABBBBC  (0,6)
Ei  ab{1,3}?bc  ABBBBC  (0,6)
Ei  ab{3,4}?bc  ABBBBC  (0,6)
Ei  ab{4,5}?bc  ABQ NOMATCH
Ei  SAME    ABBBBC  NOMATCH
Ei  ab??bc  ABBC    (0,4)
Ei  SAME    ABC (0,3)
Ei  ab{0,1}?bc  ABC (0,3)
Ei  ab??c   ABC (0,3)
Ei  ab{0,1}?c   ABC (0,3)
Ei  ^abc$   ABC (0,3)
Ei  SAME    ABBBBC  NOMATCH
Ei  SAME    ABCC    NOMATCH
Ei  ^abc    ABCC    (0,3)
Ei  abc$    AABC    (1,4)
Ei  ^   ABC (0,0)
Ei  $   ABC (3,3)
Ei  a.c ABC (0,3)
Ei  SAME    AXC (0,3)
Ei  a.*?c   AXYZC   (0,5)
Ei  a.*c    AABC    (0,4)
Ei  SAME    AXYZD   NOMATCH
Ei  a[bc]d  ABD (0,3)
Ei  a[b-d]e ACE (0,3)
Ei  SAME    ABC NOMATCH
Ei  SAME    ABD NOMATCH
Ei  a[b-d]  AAC (1,3)
Ei  a[-b]   A-  (0,2)
Ei  a[b-]   A-  (0,2)
Ei  a]  A]  (0,2)
Ei  a[]]b   A]B (0,3)
Ei  a[^bc]d AED (0,3)
Ei  a[^-b]c ADC (0,3)
Ei  SAME    ABD NOMATCH
Ei  SAME    A-C NOMATCH
Ei  a[^]b]c ADC (0,3)
Ei  ab|cd   ABC (0,2)
Ei  SAME    ABCD    (0,2)
Ezi ()ef    DEF (1,3)(1,1)
Ei  $b  A]C NOMATCH
Ei  SAME    B   NOMATCH
E$i a\\(b   A(B (0,3)
E$i a\\(*b  AB  (0,2)
E$i SAME    A((B    (0,4)
E$i a\\\\b  A\\B    (0,3)
Ei  ((a))   ABC (0,1)(0,1)(0,1)
Ei  (a)b(c) ABC (0,3)(0,1)(2,3)
Ei  a+b+c   AABBABC (4,7)
Ei  a{1,}b{1,}c AABBABC (4,7)
Ei  a.+?c   ABCABC  (0,3)
Ei  a.*?c   ABCABC  (0,3)
Ei  a.{0,5}?c   ABCABC  (0,3)
Ei  (a+|b)* AB  (0,2)(1,2)
Ei  (a+|b){0,}  AB  (0,2)(1,2)
Ei  (a+|b)+ AB  (0,2)(1,2)
Ei  (a+|b){1,}  AB  (0,2)(1,2)
Ei  (a+|b)? AB  (0,1)(0,1)
Ei  (a+|b){0,1} AB  (0,1)(0,1)
Ei  (a+|b){0,1}?    AB  (0,0)
Ei  [^ab]*  CDE (0,3)
Ei  ([abc])*d   ABBBCD  (0,6)(4,5)
Ei  ([abc])*bcd ABCD    (0,4)(0,1)
Ei  a|b|c|d|e   E   (0,1)
Ei  (a|b|c|d|e)f    EF  (0,2)(0,1)
Ei  abcd*efg    ABCDEFG (0,7)
Ei  ab* XABYABBBZ   (1,3)
Ei  SAME    XAYABBBZ    (1,2)
Ei  (ab|cd)e    ABCDE   (2,5)(2,4)
Ei  [abhgefdc]ij    HIJ (0,3)
Ei  ^(ab|cd)e   ABCDE   NOMATCH
Ezi (abc|)ef    ABCDEF  (4,6)(4,4)
Ei  (a|b)c*d    ABCD    (1,4)(1,2)
Ei  (ab|ab*)bc  ABC (0,3)(0,1)
Ei  a([bc]*)c*  ABC (0,3)(1,3)
Ei  a([bc]*)(c*d)   ABCD    (0,4)(1,3)(3,4)
Ei  a([bc]+)(c*d)   ABCD    (0,4)(1,3)(3,4)
Ei  a([bc]*)(c+d)   ABCD    (0,4)(1,2)(2,4)
Ei  a[bcd]*dcdcde   ADCDCDE (0,7)
Ei  (ab|a)b*c   ABC (0,3)(0,2)
Ei  ((a)(b)c)(d)    ABCD    (0,4)(0,3)(0,1)(1,2)(3,4)
Ei  [a-zA-Z_][a-zA-Z0-9_]*  ALPHA   (0,5)
Ei  ^a(bc+|b[eh])g|.h$  ABH (1,3)
Ei  (bc+d$|ef*g.|h?i(j|k))  EFFGZ   (0,5)(0,5)
Ei  SAME    IJ  (0,2)(0,2)(1,2)
Ei  SAME    REFFGZ  (1,6)(1,6)
Ei  SAME    ADCDCDE NOMATCH
Ei  SAME    EFFG    NOMATCH
Ei  SAME    BCDD    NOMATCH
Ei  ((((((((((a))))))))))   A   (0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
E$i ((((((((((a))))))))))\\10   AA  NOMATCH
E$i ((((((((((a))))))))))\\10   AA0 (0,3)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
E$i ((((((((((a))))))))))(?10)  AA  (0,2)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
Ei  (((((((((a))))))))) A   (0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
Ei  (?:(?:(?:(?:(?:(?:(?:(?:(?:(a)))))))))) A   (0,1)(0,1)
Ei  (?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c)))))))))) C   (0,1)(0,1)
Ei  multiple words of text  AA  NOMATCH
Ei  SAME    UH-UH   NOMATCH
Ei  multiple words  MULTIPLE WORDS, YEAH    (0,14)
Ei  (.*)c(.*)   ABCDE   (0,5)(0,2)(3,5)
E$i \\((.*), (.*)\\)    (A, B)  (0,6)(1,2)(4,5)
Ei  abcd    ABCD    (0,4)
Ei  a(bc)d  ABCD    (0,4)(1,3)
Ei  a[-]?c  AC  (0,2)
E$i (abc)\\1    ABCABC  (0,6)(0,3)
E$i ([a-c]*)\\1 ABCABC  (0,6)(0,3)
E   a(?!b). abad    (2,4)
E   a(?=d). abad    (2,4)
E   a(?=c|d).   abad    (2,4)
E   a(?:b|c|d)(.)   ace (0,3)(2,3)
E   a(?:b|c|d)*(.)  ace (0,3)(2,3)
E   a(?:b|c|d)+?(.) ace (0,3)(2,3)
E   SAME    acdbcdbe    (0,3)(2,3)
E   a(?:b|c|d)+(.)  acdbcdbe    (0,8)(7,8)
E   a(?:b|c|d){2}(.)    acdbcdbe    (0,4)(3,4)
E   a(?:b|c|d){4,5}(.)  acdbcdbe    (0,7)(6,7)
E   a(?:b|c|d){4,5}?(.) acdbcdbe    (0,6)(5,6)
E   ((foo)|(bar))*  foobar  (0,6)(3,6)(?,?)(3,6)
E   a(?:b|c|d){6,7}(.)  acdbcdbe    (0,8)(7,8)
E   a(?:b|c|d){6,7}?(.) acdbcdbe    (0,8)(7,8)
E   a(?:b|c|d){5,6}(.)  acdbcdbe    (0,8)(7,8)
E   a(?:b|c|d){5,6}?(.) acdbcdbe    (0,7)(6,7)
E   a(?:b|c|d){5,7}(.)  acdbcdbe    (0,8)(7,8)
E   a(?:b|c|d){5,7}?(.) acdbcdbe    (0,7)(6,7)
E   a(?:b|(c|e){1,2}?|d)+?(.)   ace (0,3)(1,2)(2,3)
E   ^(.+)?B AB  (0,2)(0,1)
E$  ^([^a-z])|(\\^)$    .   (0,1)(0,1)
E   ^[<>]&  <&OUT   (0,2)
E$  ^(a\\1?){4}$    aaaaaaaaaa  ESUBREG
E$  SAME    AB  ESUBREG
E$  SAME    aaaaaaaaa   ESUBREG
E$  SAME    aaaaaaaaaaa ESUBREG
E$  ^(a(?(1)\\1)){4}$   aaaaaaaaaa  ESUBREG
E$  SAME    aaaaaaaaa   ESUBREG
E$  SAME    aaaaaaaaaaa ESUBREG
E   ((f)(o)(o)|(b)(a)(r))*  foobar  (0,6)(3,6)(?,?)(?,?)(?,?)(3,4)(4,5)(5,6)
E   (?:(f)(o)(o)|(b)(a)(r))*    foobar  (0,6)(?,?)(?,?)(?,?)(3,4)(4,5)(5,6)
E   ((f)(u)|(b)(a)(r))* fubar   (0,5)(2,5)(?,?)(?,?)(2,3)(3,4)(4,5)
E   (?:(f)(u)|(b)(a)(r))*   fubar   (0,5)(?,?)(?,?)(2,3)(3,4)(4,5)
E   (?<=a)b ab  (1,2)
E   SAME    cb  NOMATCH
E   SAME    b   NOMATCH
E   (?<!c)b ab  (1,2)
E   SAME    b   (0,1)
E   SAME    b   (0,1)
E   (?:..)*a    aba (0,3)
E   (?:..)*?a   aba (0,1)
E$  ^(?:b|a(?=(.)))*\\1 abc (0,2)(1,2)
Ez  ^(){3,5}    abc (0,0)(0,0)
E   ^(a+)*ax    aax (0,3)(0,1)
E   ^((a|b)+)*ax    aax (0,3)(0,1)(0,1)
E   ^((a|bc)+)*ax   aax (0,3)(0,1)(0,1)
E   (a|x)*ab    cab (1,3)
E   (a)*ab  cab (1,3)
E   (?:(?i)a)b  ab  (0,2)
E   ((?i)a)b    ab  (0,2)(0,1)
E   (?:(?i)a)b  Ab  (0,2)
E   ((?i)a)b    Ab  (0,2)(0,1)
E   (?:(?i)a)b  cb  NOMATCH
E   SAME    aB  NOMATCH
E   (?i:a)b ab  (0,2)
E   ((?i:a))b   ab  (0,2)(0,1)
E   (?i:a)b Ab  (0,2)
E   ((?i:a))b   Ab  (0,2)(0,1)
E   (?i:a)b aB  NOMATCH
E   SAME    aB  NOMATCH
Ei  (?:(?-i)a)b ab  (0,2)
Ei  ((?-i)a)b   ab  (0,2)(0,1)
Ei  (?:(?-i)a)b aB  (0,2)
Ei  ((?-i)a)b   aB  (0,2)(0,1)
Ei  (?:(?-i)a)b aB  (0,2)
Ei  SAME    Ab  NOMATCH
Ei  (?:(?-i)a)b aB  (0,2)
Ei  ((?-i)a)b   aB  (0,2)(0,1)
Ei  (?:(?-i)a)b Ab  NOMATCH
Ei  SAME    AB  NOMATCH
Ei  (?-i:a)b    ab  (0,2)
Ei  ((?-i:a))b  ab  (0,2)(0,1)
Ei  (?-i:a)b    aB  (0,2)
Ei  ((?-i:a))b  aB  (0,2)(0,1)
Ei  (?-i:a)b    AB  NOMATCH
Ei  SAME    Ab  NOMATCH
Ei  (?-i:a)b    aB  (0,2)
Ei  ((?-i:a))b  aB  (0,2)(0,1)
Ei  (?-i:a)b    Ab  NOMATCH
Ei  SAME    AB  NOMATCH
Ei  ((?-i:a.))b AB  NOMATCH
Ei$ SAME    a\nB    (0,3)(0,2)
Ei$ ((?s-i:a.))b    a\nB    (0,3)(0,2)
E   (?:c|d)(?:)(?:a(?:)(?:b)(?:b(?:))(?:b(?:)(?:b)))    cabbbb  (0,6)
E   (?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb))) caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb   (0,41)
E$i (ab)\\d\\1  Ab4ab   (0,5)(0,2)
E$i SAME    ab4Ab   (0,5)(0,2)
E$  foo\\w*\\d{4}baz    foobar1234baz   (0,13)
E   x(~~)*(?:(?:F)?)?   x~~ (0,3)(1,3)
E   ^a{3}(?#xxx)c   aaac    (0,4)
E   ^a(?#xxx){3}c   aaac    (0,4)
Ec  ^a (?#xxx) (?#yyy) {3} c    aaac    (0,4)
E$  (?<![cd])b  B\nB    NOMATCH
E$  SAME    dbcb    NOMATCH
E   (?<![cd])[ab]   dbaacb  (2,3)
E   (?<!(c|d))[ab]  dbaacb  (2,3)
E   (?<!cd)[ab] cdaccb  (5,6)
E   ^(?:a?b?)*$ dbcb    NOMATCH
E   SAME    a-- NOMATCH
E$  (^a(.))(^b$)        a\nb\nc\n   NOMATCH
E$n (^a(.))(^b$)        a\nb\nc\n   NOMATCH
E$j (^a(.))(^b$)        a\nb\nc\n   NOMATCH
E$nj    (^a(.))(^b$)        a\nb\nc\n   (0,3)(0,2)(1,2)(2,3)
E$  (?ms)(^a(.))(^b$)   a\nb\nc\n   (0,3)(0,2)(1,2)(2,3)
E$  (?ms:(^a(.))(^b$))  a\nb\nc\n   (0,3)(0,2)(1,2)(2,3)
E$nj    (?:(^a(.))(^b$))    a\nb\nc\n   (0,3)(0,2)(1,2)(2,3)
E$  (?ms)(?:(^a(.))(^b$))   a\nb\nc\n   (0,3)(0,2)(1,2)(2,3)
E$  ((?s)^a(.))((?m)^b$)    a\nb\nc\n   (0,3)(0,2)(1,2)(2,3)
E$  ((?m)^b$)   a\nb\nc\n   (2,3)(2,3)
E$  (?m)^b  a\nb\n  (2,3)
E$  (?m)^(b)    a\nb\n  (2,3)(2,3)
E$  ((?m)^b)    a\nb\n  (2,3)(2,3)
E$  \\n((?m)^b) a\nb\n  (1,3)(2,3)
E$  .c      a\nb\nc\n   (3,5)
E$n .c      a\nb\nc\n   NOMATCH
E$j .c      a\nb\nc\n   (3,5)
E$nj    .c      a\nb\nc\n   (3,5)
E$  (?:.c)      a\nb\nc\n   (3,5)
E$  (?m:.c)     a\nb\nc\n   NOMATCH
E$  (?s:.c)     a\nb\nc\n   (3,5)
E$  (?ms:.c)    a\nb\nc\n   (3,5)
E$  (?m).c      a\nb\nc\n   NOMATCH
E$  (?s).c      a\nb\nc\n   (3,5)
E$  (?ms).c     a\nb\nc\n   (3,5)
E$  ((?s).c)    a\nb\nc\n   (3,5)(3,5)
E$  ((?s).)c    a\nb\nc\n   (3,5)(3,4)
E$  .       \n      (0,1)
E$n .       \n      NOMATCH
E$j .       \n      (0,1)
E$nj    .       \n      (0,1)
E$  (?=.)       \n      (0,0)
E$n (?=.)       \n      NOMATCH
E$j (?=.)       \n      (0,0)
E$nj    (?=.)       \n      (0,0)
E$  (?!.)       \n      (1,1)
E$n (?!.)       \n      (0,0)
E$j (?!.)       \n      (1,1)
E$nj    (?!.)       \n      (1,1)
E$  (.)c(?!.)   a\nb\nc\n   NOMATCH
E$  (?:(.)c)(?:(?!.))   a\nb\nc\n   NOMATCH
E$  (?:(.)c)(?m:(?!.))  a\nb\nc\n   (3,5)(3,4)
E$  ((?s).)c(?!.)   a\nb\nc\n   NOMATCH
E$  SAME    a\nb\nc\n   NOMATCH
E$  ((?s)b.)c(?!.)  a\nb\nc\n   NOMATCH
E$  SAME    a\nb\nc\n   NOMATCH
Ez$ ()^b    a\nb\nc\n   NOMATCH
Ez$ SAME    a\nb\nc\n   NOMATCH
Ez$ ((?m)^b)    a\nb\nc\n   (2,3)(2,3)
Ez  (?(1)b|a)   a   ESUBREG
E   (x)?(?(1)a|b)   a   NOMATCH
E   SAME    a   NOMATCH
E   (x)?(?(1)b|a)   a   (0,1)
Ez  ()?a        a   (0,1)(0,0)
Ez  ()?(?(1)a|b)    a   (0,1)(0,0)
Ez  SAME        b   (0,1)
Ez  ()?(?(1)b|a)    a   (0,1)
Ez  SAME        b   (0,1)(0,0)
Ez  ()?(?(1)b|a)    a   (0,1)
E$  ^(<)?blah(>)?$  <blah>  (0,6)(0,1)(5,6)
E$  ^(<)?blah(?(1)>)$   <blah>  (0,6)(0,1)
E$  ^(<)?blah(?(1)(>))$ <blah>  (0,6)(0,1)(5,6)
E$  SAME    blah    (0,4)
E$  SAME    a   NOMATCH
E$  SAME    blah>   NOMATCH
E$  SAME    <blah   NOMATCH
Ez$ ^(<)?blah(?(1)(>)|)$    <blah>  (0,6)(0,1)(5,6)
Ez$ SAME    blah    (0,4)
Ez$ SAME    a   NOMATCH
Ez$ SAME    blah>   NOMATCH
Ez$ SAME    <blah   NOMATCH
E$  ^(\\()?blah(?(1)(\\)))$ (blah)  (0,6)(0,1)(5,6)
E$  SAME    blah    (0,4)
E$  SAME    a   NOMATCH
E$  SAME    blah)   NOMATCH
E$  SAME    (blah   NOMATCH
E$  ^(\\(+)?blah(?(1)(\\)))$    (blah)  (0,6)(0,1)(5,6)
E$  SAME    blah    (0,4)
E$  SAME    blah)   NOMATCH
E$  SAME    (blah   NOMATCH
E   (?(?!a)b|a) a   (0,1)
E   (?(?=a)b|a) a   NOMATCH
E   SAME    a   NOMATCH
E   (?(?=a)a|b) a   (0,1)
E$  (?=(a+))(\\1ab)     aaab    (0,4)(0,2)(0,4)
Em$ SAME            aaab    (0,4)(0,2)(0,4)
E$  (?=(a+?))(\\1ab)    aaab    (0,4)(0,2)(0,4)
E$  (\\w+:)+    one:    (0,4)(0,4)
E   $(?<=^(a))  a   (1,1)(0,1)
E$  (?=(a+?))(\\1ab)    aaab    (0,4)(0,2)(0,4)
E$  ^(?=(a+?))\\1ab aaab    (0,4)(0,2)
E$  SAME    aaab    (0,4)(0,2)
E$v ([\\w:]+::)?(\\w+)$ abcd    (0,4)(?,?)(0,4)
E$v SAME    xy:z:::abcd (0,11)(0,7)(7,11)
E   ^[^bcd]*(c+)    aexycd  (0,5)(4,5)
E   (a*)b+  caab    (1,4)(1,3)
E$v ([\\w:]+::)?(\\w+)$ abcd    (0,4)(?,?)(0,4)
E$v SAME    xy:z:::abcd (0,11)(0,7)(7,11)
E$v SAME    abcd:   NOMATCH
E$v SAME    abcd:   NOMATCH
E   ^[^bcd]*(c+)    aexycd  (0,5)(4,5)
E   (?>a+)b aaab    (0,4)
E   ([[:]+) a:[b]:  ECTYPE
E   ([[=]+) a=[b]=  ECOLLATE
E   ([[.]+) a.[b].  ECOLLATE
E   ((?>a+)b)   aaab    (0,4)(0,4)
E   (?>(a+))b   aaab    (0,4)(0,3)
E$  ((?>[^()]+)|\\([^()]*\\))+  ((abc(ade)ufh()()x  (2,18)(17,18)
E$  a\\Z    aaab    NOMATCH
E$  SAME    a\nb\n  NOMATCH
E$  b\\Z    a\nb\n  (2,3)
E$  b\\Z    a\nb    (2,3)
E$  b\\z    a\nb    (2,3)
E$v ^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$    a   ESUBREG
E$v SAME    abc ESUBREG
E$v SAME    a-b ESUBREG
E$v SAME    0-9 ESUBREG
E$v SAME    a.b ESUBREG
E$v SAME    5.6.7   ESUBREG
E$v SAME    the.quick.brown.fox ESUBREG
E$v SAME    a100.b200.300c  ESUBREG
E$v SAME    12-ab.1245  ESUBREG
E$v SAME    NULL    ESUBREG
E$v SAME    .a  ESUBREG
E$v SAME    -a  ESUBREG
E$v SAME    a-  ESUBREG
E$v SAME    a.  ESUBREG
E$v SAME    a_b ESUBREG
E$v SAME    a.- ESUBREG
E$v SAME    a.. ESUBREG
E$v SAME    ab..bc  ESUBREG
E$v SAME    the.quick.brown.fox-    ESUBREG
E$v SAME    the.quick.brown.fox.    ESUBREG
E$v SAME    the.quick.brown.fox_    ESUBREG
E$v SAME    the.quick.brown.fox+    ESUBREG
E   (?>.*)(?<=(abcd|wxyz))  alphabetabcd    (0,12)(8,12)
E   SAME    endingwxyz  (0,10)(6,10)
E   SAME    a rather long string that doesn't end with one of them  NOMATCH
E   word (?>(?:(?!otherword)[a-zA-Z0-9]+ ){0,30})otherword  word cat dog elephant mussel cow horse canary baboon snake shark otherword  (0,74)
E   SAME    word cat dog elephant mussel cow horse canary baboon snake shark    NOMATCH
E   word (?>[a-zA-Z0-9]+ ){0,30}otherword   word cat dog elephant mussel cow horse canary baboon snake shark the quick brown fox and the lazy dog and several other words getting close to thirty by now I hope NOMATCH
E$  (?<=\\d{3}(?!999))foo   999foo  (3,6)
E$  SAME    123999foo   (6,9)
E$  SAME    123abcfoo   NOMATCH
E$  (?<=(?!...999)\\d{3})foo    999foo  (3,6)
E$  SAME    123999foo   (6,9)
E$  SAME    123abcfoo   NOMATCH
E$  (?<=\\d{3}(?!999)...)foo    123abcfoo   (6,9)
E$  SAME    123456foo   (6,9)
E$  SAME    123999foo   NOMATCH
E$  (?<=\\d{3}...)(?<!999)foo   123abcfoo   (6,9)
E$  SAME    123456foo   (6,9)
E$  SAME    123999foo   NOMATCH
Ei  <a +href *= *(["'])?        <a href=abcd xyz    (0,8)
Ei  =(")?(?(1)(.*)"|([^ ]+))    =abcd xyz   (0,5)(?,?)(?,?)(1,5)
Ei  =(")?(?(1)(.*)\1|([^ ]+))   ="abcd" xyz (0,7)(1,2)(2,6)
Ei  <a +href *= *((["'])(.*?)\2|[^ ]+)  <a href=abcd xyz    (0,12)(8,12)
Ei  <a +href *= *((["'])(.*?)\2|[^ ]+)  <a href="abcd" xyz  (0,14)(8,14)(8,9)(9,13)
Ei  <a +href *= *(["'])?(?(1)(.*?)\1|([^ ]+))   <a href=abcd xyz    (0,12)(?,?)(?,?)(8,12)
Ei  <a +href *= *(["'])?(?(1)(.*?)\1|([^ ]+))   <a href='abcd' xyz  (0,14)(8,9)(9,13)
Eiv <a[\s]+href[\s]*=[\s]*(["'])?(?(1)(.*?)\1|([^\s]+)) <a href=abcd xyz    (0,12)(?,?)(?,?)(8,12)
E$ijcv  <a[\\s]+href[\\s]*=[\\s]*       # find <a href=\n (["\\'])?                              # find single or double quote\n (?(1) (.*?)\\1 | ([^\\s]+))            # if quote found, match up to\n                                        # next matching quote,\n                                        # otherwise match up to next\n                                        # space\n  <a href=abcd xyz    (0,12)(?,?)(?,?)(8,12)
E$ijcv  SAME    <a href="abcd xyz pqr" cats (0,22)(8,9)(9,21)
E$ijcv  SAME    <a href='abcd xyz pqr' cats (0,22)(8,9)(9,21)
E$ijc   <a\\s+href\\s*=\\s* # find <a href=\n (["'])?                    # find single or double quote\n (?(1) (.*?)\\1 | (\\S+))   # if quote found, match to next matching\n                            # quote, otherwise match up to next space\n   <a href=abcd xyz    (0,12)(?,?)(?,?)(8,12)
E$ijc   SAME    <a href="abcd xyz pqr" cats (0,22)(8,9)(9,21)
E$ijc   SAME    <a href       =       'abcd xyz pqr' cats   (0,36)(22,23)(23,35)
E$ijc   <a\\s+href(?>\\s*)=(?>\\s*)        # find <a href=\n (["'])?                         # find single or double quote\n (?(1) (.*?)\\1 | (\\S+))          # if quote found, match up to next matching\n                                 # quote, otherwise match up to next space\n    <a href=abcd xyz    (0,12)(?,?)(?,?)(8,12)
E$ijc   SAME    <a href="abcd xyz pqr" cats (0,22)(8,9)(9,21)
E$ijc   SAME    <a href       =       'abcd xyz pqr' cats   (0,36)(22,23)(23,35)
E   ((Z)+|A)*   ZABCDEFG    (0,2)(1,2)
E   (Z()|A)*    ZABCDEFG    ENULL
Ez  (Z()|A)*    ZABCDEFG    (0,2)(1,2)
E   (Z(())|A)*  ZABCDEFG    ENULL
Ez  (Z(())|A)*  ZABCDEFG    (0,2)(1,2)
E   ((?>Z)+|A)* ZABCDEFG    (0,2)(1,2)
E   ((?>)+|A)*  ZABCDEFG    (0,0)(0,0)
E   a*  abbab   (0,1)
E$v ^[a-\\d]*   abcde   ERANGE
E$v ^[a-\\d]    abcde   ERANGE
E$v SAME    -things ERANGE
E$v SAME    0digit  ERANGE
E$v SAME    bcdef   ERANGE
E$v ^[\\d-a]    abcde   ERANGE
E$v SAME    -things ERANGE
E$v SAME    0digit  ERANGE
E$v SAME    bcdef   ERANGE