/[pcre]/code/trunk/testdata/testoutput2

Diff of /code/trunk/testdata/testoutput2

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-revision 411 by ph10,
Fri Apr 10 15:40:21 2009 UTC
+revision 500 by ph10,
Sat Mar  6 19:00:29 2010 UTC
 Line 1
+ /-- 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 potential 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
  Capturing subpattern count = 1
  No options
-Line 40 
 No match
+Line 51 
 No match
  /a+bc/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'c'
  /a*bc/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  Need char = 'c'
  /a{3}bc/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'c'
  /(abc|a+z)/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  First char = 'a'
  No need char
-Line 113 
 Failed: unrecognized character after (?
+Line 120 
 Failed: unrecognized character after (?
  /.*b/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char at start or follows newline
  Need char = 'b'
  /.*?b/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char at start or follows newline
  Need char = 'b'
-Line 140 
 Capturing subpattern count = 0
+Line 145 
 Capturing subpattern count = 0
  No options
  No first char
  No need char
+ Subject length lower bound = 3
  Starting byte set: c d e
      this sentence eventually mentions a cat
 : cat
-Line 151 
 Capturing subpattern count = 0
+Line 157 
 Capturing subpattern count = 0
  Options: caseless
  No first char
  No need char
+ Subject length lower bound = 3
  Starting byte set: C D E c d e
      this sentence eventually mentions a CAT cat
 : CAT
-Line 162 
 Capturing subpattern count = 0
+Line 169 
 Capturing subpattern count = 0
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b c d
  /(a|[^\dZ])/IS
-Line 169 
 Capturing subpattern count = 1
+Line 177 
 Capturing subpattern count = 1
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: \x00 \x01 \x02 \x03 \x04 \x05 \x06 \x07 \x08 \x09 \x0a
    \x0b \x0c \x0d \x0e \x0f \x10 \x11 \x12 \x13 \x14 \x15 \x16 \x17 \x18 \x19
    \x1a \x1b \x1c \x1d \x1e \x1f \x20 ! " # $ % & ' ( ) * + , - . / : ; < = >
-Line 189 
 Capturing subpattern count = 1
+Line 198 
 Capturing subpattern count = 1
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: \x09 \x0a \x0c \x0d \x20 a b
  /(ab\2)/
-Line 324 
 No need char
+Line 334 
 No need char
  /.*((abc)$|(def))/I
  Capturing subpattern count = 3
- Partial matching not supported
  No options
  First char at start or follows newline
  No need char
-Line 338 
 No need char
+Line 347 
 No need char
 : <unset>
 : def
- /abc/IP
+ /abc/P
      abc
 : abc
      *** Failers
  No match: POSIX code 17: match failed
- /^abc|def/IP
+ /^abc|def/P
      abcdef
 : abc
      abcdef\B
 : def
- /.*((abc)$|(def))/IP
+ /.*((abc)$|(def))/P
      defabc
 : defabc
 : abc
-Line 360 
 No match: POSIX code 17: match failed
+Line 369 
 No match: POSIX code 17: match failed
 : def
 : def
- /the quick brown fox/IP
+ /the quick brown fox/P
      the quick brown fox
 : the quick brown fox
      *** Failers
-Line 368 
 No match: POSIX code 17: match failed
+Line 377 
 No match: POSIX code 17: match failed
      The Quick Brown Fox
  No match: POSIX code 17: match failed
- /the quick brown fox/IPi
+ /the quick brown fox/Pi
      the quick brown fox
 : the quick brown fox
      The Quick Brown Fox
 : The Quick Brown Fox
- /abc.def/IP
+ /abc.def/P
      *** Failers
  No match: POSIX code 17: match failed
      abc\ndef
  No match: POSIX code 17: match failed
- /abc$/IP
+ /abc$/P
      abc
 : abc
      abc\n
 : abc
- /(abc)\2/IP
+ /(abc)\2/P
  Failed: POSIX code 15: bad back reference at offset 7
- /(abc\1)/IP
+ /(abc\1)/P
      abc
  No match: POSIX code 17: match failed
-Line 401 
 Failed: missing terminating ] for charac
+Line 410 
 Failed: missing terminating ] for charac
  /[^aeiou ]{3,}/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 410 
 No need char
+Line 418 
 No need char
  /<.*>/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = '<'
  Need char = '>'
-Line 419 
 Need char = '>'
+Line 426 
 Need char = '>'
  /<.*?>/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = '<'
  Need char = '>'
-Line 428 
 Need char = '>'
+Line 434 
 Need char = '>'
  /<.*>/IU
  Capturing subpattern count = 0
- Partial matching not supported
  Options: ungreedy
  First char = '<'
  Need char = '>'
-Line 437 
 Need char = '>'
+Line 442 
 Need char = '>'
  /(?U)<.*>/I
  Capturing subpattern count = 0
- Partial matching not supported
  Options: ungreedy
  First char = '<'
  Need char = '>'
-Line 446 
 Need char = '>'
+Line 450 
 Need char = '>'
  /<.*?>/IU
  Capturing subpattern count = 0
- Partial matching not supported
  Options: ungreedy
  First char = '<'
  Need char = '>'
-Line 455 
 Need char = '>'
+Line 458 
 Need char = '>'
  /={3,}/IU
  Capturing subpattern count = 0
- Partial matching not supported
  Options: ungreedy
  First char = '='
  Need char = '='
-Line 464 
 Need char = '='
+Line 466 
 Need char = '='
  /(?U)={3,}?/I
  Capturing subpattern count = 0
- Partial matching not supported
  Options: ungreedy
  First char = '='
  Need char = '='
-Line 522 
 No need char
+Line 523 
 No need char
  /(?s).*/I
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored dotall
  No first char
  No need char
 Line 532 
 Capturing subpattern count = 0
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b c d
  /(?i)[abcd]/IS
-Line 539 
 Capturing subpattern count = 0
+Line 540 
 Capturing subpattern count = 0
  Options: caseless
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: A B C D a b c d
  /(?m)[xy]|(b|c)/IS
-Line 546 
 Capturing subpattern count = 1
+Line 548 
 Capturing subpattern count = 1
  Options: multiline
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: b c x y
  /(^a|^b)/Im
-Line 584 
 Failed: syntax error in subpattern name
+Line 587 
 Failed: syntax error in subpattern name
  /((?s)blah)\s+\1/I
  Capturing subpattern count = 1
  Max back reference = 1
- Partial matching not supported
  No options
  First char = 'b'
  Need char = 'h'
-Line 592 
 Need char = 'h'
+Line 594 
 Need char = 'h'
  /((?i)blah)\s+\1/I
  Capturing subpattern count = 1
  Max back reference = 1
- Partial matching not supported
  No options
  First char = 'b' (caseless)
  Need char = 'h' (caseless)
-Line 612 
 Capturing subpattern count = 1
+Line 613 
 Capturing subpattern count = 1
  No options
  First char = 'b' (caseless)
  No need char
- Study returned NULL
+ Subject length lower bound = 1
+ No set of starting bytes
  /(a*b|(?i:c*(?-i)d))/IS
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: C a b c d
  /a$/I
-Line 668 
 Need char = 'c'
+Line 670 
 Need char = 'c'
  /^((a+)(?U)([ab]+)(?-U)([bc]+)(\w*))/I
  Capturing subpattern count = 5
- Partial matching not supported
  Options: anchored
  No first char
  No need char
-Line 685 
 Capturing subpattern count = 0
+Line 686 
 Capturing subpattern count = 0
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b
  /(?<!foo)(alpha|omega)/IS
-Line 692 
 Capturing subpattern count = 1
+Line 694 
 Capturing subpattern count = 1
  No options
  No first char
  Need char = 'a'
+ Subject length lower bound = 5
  Starting byte set: a o
  /(?!alphabet)[ab]/IS
-Line 699 
 Capturing subpattern count = 0
+Line 702 
 Capturing subpattern count = 0
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b
  /(?<=foo\n)^bar/Im
-Line 784 
 No need char
+Line 788 
 No need char
  /(?>.*)(?<=(abcd)|(xyz))/I
  Capturing subpattern count = 2
- Partial matching not supported
  No options
  First char at start or follows newline
  No need char
-Line 854 
 No match
+Line 857 
 No match
      a
  No match
- /This one is here because I think Perl 5.005_02 gets the setting of $1 wrong/I
+ /This one is here because Perl behaves differently; see also the following/I
  Capturing subpattern count = 0
  No options
  First char = 'T'
-Line 866 
 Max back reference = 1
+Line 869 
 Max back reference = 1
  Options: anchored
  No first char
  No need char
+     aaaa
+ No match
      aaaaaa
-: aaaaaa
+ No match
-: aa
+ /Perl does not fail these two for the final subjects. Neither did PCRE until/
+ /release 8.01. The problem is in backtracking into a subpattern that contains/
+ No match
+ /a recursive reference to itself. PCRE has now made these into atomic patterns./
+ No match
+ /^(xa|=?\1a){2}$/
+     xa=xaa
+: xa=xaa
+: =xaa
+     ** Failers
+ No match
+     xa=xaaa
+ No match
+ /^(xa|=?\1a)+$/
+     xa=xaa
+: xa=xaa
+: =xaa
+     ** Failers
+ No match
+     xa=xaaa
+ No match
  /These are syntax tests from Perl 5.005/I
  Capturing subpattern count = 0
-Line 1003 
 copy substring 5 failed -7
+Line 1031 
 copy substring 5 failed -7
  /(.{20})/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
-Line 1021 
 No need char
+Line 1048 
 No need char
  /(.{15})/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
-Line 1036 
 No need char
+Line 1062 
 No need char
  /(.{16})/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
-Line 1103 
 No need char
+Line 1128 
 No need char
  )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+
  )?)?)?)?)?)?)?)?)?otherword/I
  Capturing subpattern count = 8
- Partial matching not supported
  Contains explicit CR or LF match
  No options
  First char = 'w'
-Line 1118 
 Need char = 'd'
+Line 1142 
 Need char = 'd'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char at start or follows newline
  Need char = 'X'
-Line 1132 
 Need char = 'X'
+Line 1155 
 Need char = 'X'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored dotall
  No first char
  Need char = 'X'
-Line 1151 
 Need char = 'X'
+Line 1173 
 Need char = 'X'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  First char at start or follows newline
  No need char
-Line 1170 
 No need char
+Line 1191 
 No need char
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 1
- Partial matching not supported
  Options: anchored dotall
  No first char
  No need char
-Line 1189 
 No need char
+Line 1209 
 No need char
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 1
- Partial matching not supported
  Options: anchored dotall
  No first char
  No need char
-Line 1211 
 No need char
+Line 1230 
 No need char
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored
  No first char
  No need char
-Line 1296 
 No need char
+Line 1314 
 No need char
  /.*iss/Ig+
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char at start or follows newline
  Need char = 's'
-Line 1399 
 Need char = 'c'
+Line 1416 
 Need char = 'c'
  /a*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
  /a+/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  No need char
  /(baa|a+)/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  Need char = 'a'
  /a{0,3}/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
  /baa{3,}/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'b'
  Need char = 'a'
  /"([^\\"]+|\\.)*"/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  First char = '"'
  Need char = '"'
-Line 1489 
 Need char = 'b'
+Line 1500 
 Need char = 'b'
  /abc*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
  /ab.c*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
  /a.c*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  No need char
  /.c*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
  /ac*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  No need char
  /(a.c*|b.c*)/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
  /a.c*|aba/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  No need char
  /.+a/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  Need char = 'a'
  /(?=abcda)a.*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'a'
  /(?=a)a.*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  No need char
-Line 1565 
 No need char
+Line 1566 
 No need char
  /a\d*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  No need char
  /ab\d*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
-Line 1591 
 Need char = 'd'
+Line 1590 
 Need char = 'd'
  /ab\d+/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
-Line 1666 
 No need char
+Line 1664 
 No need char
      \Nabc
  No match
- /a*(b+)(z)(z)/IP
+ /a*(b+)(z)(z)/P
      aaaabbbbzzzz
 : aaaabbbbzz
 : bbbb
-Line 1698 
 Capturing subpattern count = 0
+Line 1696 
 Capturing subpattern count = 0
  Options: anchored
  No first char
  Need char = 'd'
- Study returned NULL
+ Subject length lower bound = 4
+ No set of starting bytes
  /\(             # ( at start
    (?:           # Non-capturing bracket
-Line 1709 
 Study returned NULL
+Line 1708 
 Study returned NULL
    \)            # Closing )
    /Ix
  Capturing subpattern count = 0
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1738 
 No match
+Line 1736 
 No match
  /\(  ( (?>[^()]+) | (?R) )* \) /Ixg
  Capturing subpattern count = 1
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1753 
 Need char = ')'
+Line 1750 
 Need char = ')'
  /\(  (?: (?>[^()]+) | (?R) ) \) /Ix
  Capturing subpattern count = 0
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1772 
 No match
+Line 1768 
 No match
  /\(  (?: (?>[^()]+) | (?R) )? \) /Ix
  Capturing subpattern count = 0
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1783 
 Need char = ')'
+Line 1778 
 Need char = ')'
  /\(  ( (?>[^()]+) | (?R) )* \) /Ix
  Capturing subpattern count = 1
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1793 
 Need char = ')'
+Line 1787 
 Need char = ')'
  /\( ( ( (?>[^()]+) | (?R) )* ) \) /Ix
  Capturing subpattern count = 2
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1804 
 Need char = ')'
+Line 1797 
 Need char = ')'
  /\( (123)? ( ( (?>[^()]+) | (?R) )* ) \) /Ix
  Capturing subpattern count = 3
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1821 
 Need char = ')'
+Line 1813 
 Need char = ')'
  /\( ( (123)? ( (?>[^()]+) | (?R) )* ) \) /Ix
  Capturing subpattern count = 3
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1838 
 Need char = ')'
+Line 1829 
 Need char = ')'
  /\( (((((((((( ( (?>[^()]+) | (?R) )* )))))))))) \) /Ix
  Capturing subpattern count = 11
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1858 
 Need char = ')'
+Line 1848 
 Need char = ')'
  /\( ( ( (?>[^()<>]+) | ((?>[^()]+)) | (?R) )* ) \) /Ix
  Capturing subpattern count = 3
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1866 
 Need char = ')'
+Line 1855 
 Need char = ')'
 : (abcd(xyz<p>qrs)123)
 : abcd(xyz<p>qrs)123
 : 123
-: <unset>
  /\( ( ( (?>[^()]+) | ((?R)) )* ) \) /Ix
  Capturing subpattern count = 3
- Partial matching not supported
  Options: extended
  First char = '('
  Need char = ')'
-Line 1942 
 Capturing subpattern count = 0
+Line 1929 
 Capturing subpattern count = 0
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
    _ a b c d e f g h i j k l m n o p q r s t u v w x y z
-Line 2003 
 Contains explicit CR or LF match
+Line 1991 
 Contains explicit CR or LF match
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: \x09 \x0a \x0b \x0c \x0d \x20
  /^[[:cntrl:]]/DZ
-Line 2249 
 Need char = 'd'
+Line 2238 
 Need char = 'd'
  /(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\w+)\s+(\270)/I
  Capturing subpattern count = 271
  Max back reference = 270
- Partial matching not supported
  No options
  No first char
  No need char
-Line 2930 
 Need char = 'c'
+Line 2918 
 Need char = 'c'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 2959 
 No need char
+Line 2946 
 No need char
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'x'
  No need char
-Line 2975 
 No need char
+Line 2961 
 No need char
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'x'
  No need char
-Line 2999 
 No need char
+Line 2984 
 No need char
  /^(\w++|\s++)*$/I
  Capturing subpattern count = 1
- Partial matching not supported
  Options: anchored
  No first char
  No need char
-Line 3013 
 No match
+Line 2997 
 No match
  /(\d++)(\w)/I
  Capturing subpattern count = 2
- Partial matching not supported
  No options
  No first char
  No need char
-Line 3028 
 No match
+Line 3011 
 No match
  /a++b/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
-Line 3037 
 Need char = 'b'
+Line 3019 
 Need char = 'b'
  /(a++b)/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
-Line 3047 
 Need char = 'b'
+Line 3028 
 Need char = 'b'
  /(a++)b/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
-Line 3057 
 Need char = 'b'
+Line 3037 
 Need char = 'b'
  /([^()]++|\([^()]*\))+/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
-Line 3067 
 No need char
+Line 3046 
 No need char
  /\(([^()]++|\([^()]+\))+\)/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  First char = '('
  Need char = ')'
-Line 3130 
 Failed: nothing to repeat at offset 7
+Line 3108 
 Failed: nothing to repeat at offset 7
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'x'
  Need char = 'b'
-Line 3147 
 Need char = 'b'
+Line 3124 
 Need char = 'b'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: ungreedy
  First char = 'x'
  Need char = 'b'
-Line 3176 
 Need char = 'b'
+Line 3152 
 Need char = 'b'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 5
- Partial matching not supported
  Options: anchored
  No first char
  No need char
-Line 3192 
 No need char
+Line 3167 
 No need char
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored
  No first char
  Need char = 'b'
-Line 3210 
 Need char = 'b'
+Line 3184 
 Need char = 'b'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 1
- Partial matching not supported
  Options: anchored
  No first char
  Need char = 'b'
-Line 3286 
 No need char
+Line 3259 
 No need char
  /< (?: (?(R) \d++  | [^<>]*+) | (?R)) * >/Ix
  Capturing subpattern count = 0
- Partial matching not supported
  Options: extended
  First char = '<'
  Need char = '>'
-Line 3336 
 Need char = 'X'
+Line 3308 
 Need char = 'X'
  /(.*)\d+\1/I
  Capturing subpattern count = 1
  Max back reference = 1
- Partial matching not supported
  No options
  No first char
  No need char
  /(.*)\d+/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  First char at start or follows newline
  No need char
-Line 3351 
 No need char
+Line 3321 
 No need char
  /(.*)\d+\1/Is
  Capturing subpattern count = 1
  Max back reference = 1
- Partial matching not supported
  Options: dotall
  No first char
  No need char
  /(.*)\d+/Is
  Capturing subpattern count = 1
- Partial matching not supported
  Options: anchored dotall
  No first char
  No need char
-Line 3366 
 No need char
+Line 3334 
 No need char
  /(.*(xyz))\d+\2/I
  Capturing subpattern count = 2
  Max back reference = 2
- Partial matching not supported
  No options
  First char at start or follows newline
  Need char = 'z'
-Line 3374 
 Need char = 'z'
+Line 3341 
 Need char = 'z'
  /((.*))\d+\1/I
  Capturing subpattern count = 2
  Max back reference = 1
- Partial matching not supported
  No options
  No first char
  No need char
-Line 3391 
 Need char = 'b'
+Line 3357 
 Need char = 'b'
  /(?=a).*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char = 'a'
  No need char
-Line 3497 
 Capturing subpattern count = 0
+Line 3462 
 Capturing subpattern count = 0
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b
  /[^a]/I
-Line 3516 
 Capturing subpattern count = 0
+Line 3482 
 Capturing subpattern count = 0
  No options
  No first char
  Need char = '6'
+ Subject length lower bound = 4
  Starting byte set: 0 1 2 3 4 5 6 7 8 9
  /a^b/I
-Line 3549 
 Capturing subpattern count = 0
+Line 3516 
 Capturing subpattern count = 0
  Options: caseless
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: A B a b
  /[ab](?i)cd/IS
-Line 3556 
 Capturing subpattern count = 0
+Line 3524 
 Capturing subpattern count = 0
  No options
  No first char
  Need char = 'd' (caseless)
+ Subject length lower bound = 3
  Starting byte set: a b
  /abc(?C)def/I
-Line 3713 
 No need char
+Line 3682 
 No need char
  /(\d{3}(?C))*/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
-Line 3842 
 Callout 0: last capture = 1
+Line 3810 
 Callout 0: last capture = 1
  /a(b+)(c*)(?C1)/I
  Capturing subpattern count = 2
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
-Line 3868 
 No match
+Line 3835 
 No match
  /a(b+?)(c*?)(?C1)/I
  Capturing subpattern count = 2
- Partial matching not supported
  No options
  First char = 'a'
  Need char = 'b'
-Line 3909 
 Capturing subpattern count = 0
+Line 3875 
 Capturing subpattern count = 0
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b
  /(?R)/I
-Line 4028 
 No options
+Line 3995 
 No options
  First char = 'a'
  Need char = 'b'
- /^\W*(?:((.)\W*(?1)\W*\2|)|((.)\W*(?3)\W*\4|\W*.\W*))\W*$/Ii
- Capturing subpattern count = 4
- Max back reference = 4
- Partial matching not supported
- Options: anchored caseless
- No first char
- No need char
-: 1221
-: 1221
-: 1
-     Satan, oscillate my metallic sonatas!
-: Satan, oscillate my metallic sonatas!
-: <unset>
-: <unset>
-: Satan, oscillate my metallic sonatas
-: S
-     A man, a plan, a canal: Panama!
-: A man, a plan, a canal: Panama!
-: <unset>
-: <unset>
-: A man, a plan, a canal: Panama
-: A
-     Able was I ere I saw Elba.
-: Able was I ere I saw Elba.
-: <unset>
-: <unset>
-: Able was I ere I saw Elba
-: A
-     *** Failers
- No match
-     The quick brown fox
- No match
  /^(\d+|\((?1)([+*-])(?1)\)|-(?1))$/I
  Capturing subpattern count = 2
- Partial matching not supported
  Options: anchored
  No first char
  No need char
-Line 4105 
 No match
+Line 4037 
 No match
  /((< (?: (?(R) \d++  | [^<>]*+) | (?2)) * >))/Ix
  Capturing subpattern count = 2
- Partial matching not supported
  Options: extended
  First char = '<'
  Need char = '>'
-Line 4279 
 Named capturing subpatterns:
+Line 4210 
 Named capturing subpatterns:
    one     1
    three   3
    two     2
- Partial matching not supported
  Options: anchored caseless
  No first char
  No need char
-Line 4325 
 No need char
+Line 4255 
 No need char
  /(.*)a/Is
  Capturing subpattern count = 1
- Partial matching not supported
  Options: anchored dotall
  No first char
  Need char = 'a'
-Line 4333 
 Need char = 'a'
+Line 4262 
 Need char = 'a'
  /(.*)a\1/Is
  Capturing subpattern count = 1
  Max back reference = 1
- Partial matching not supported
  Options: dotall
  No first char
  Need char = 'a'
-Line 4341 
 Need char = 'a'
+Line 4269 
 Need char = 'a'
  /(.*)a(b)\2/Is
  Capturing subpattern count = 2
  Max back reference = 2
- Partial matching not supported
  Options: anchored dotall
  No first char
  Need char = 'b'
  /((.*)a|(.*)b)z/Is
  Capturing subpattern count = 3
- Partial matching not supported
  Options: anchored dotall
  No first char
  Need char = 'z'
-Line 4356 
 Need char = 'z'
+Line 4282 
 Need char = 'z'
  /((.*)a|(.*)b)z\1/Is
  Capturing subpattern count = 3
  Max back reference = 1
- Partial matching not supported
  Options: dotall
  No first char
  Need char = 'z'
-Line 4364 
 Need char = 'z'
+Line 4289 
 Need char = 'z'
  /((.*)a|(.*)b)z\2/Is
  Capturing subpattern count = 3
  Max back reference = 2
- Partial matching not supported
  Options: dotall
  No first char
  Need char = 'z'
-Line 4372 
 Need char = 'z'
+Line 4296 
 Need char = 'z'
  /((.*)a|(.*)b)z\3/Is
  Capturing subpattern count = 3
  Max back reference = 3
- Partial matching not supported
  Options: dotall
  No first char
  Need char = 'z'
-Line 4380 
 Need char = 'z'
+Line 4303 
 Need char = 'z'
  /((.*)a|^(.*)b)z\3/Is
  Capturing subpattern count = 3
  Max back reference = 3
- Partial matching not supported
  Options: anchored dotall
  No first char
  Need char = 'z'
  /(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a/Is
  Capturing subpattern count = 31
- Partial matching not supported
  Options: anchored dotall
  No first char
  No need char
-Line 4395 
 No need char
+Line 4316 
 No need char
  /(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\31/Is
  Capturing subpattern count = 31
  Max back reference = 31
- Partial matching not supported
  Options: dotall
  No first char
  No need char
-Line 4403 
 No need char
+Line 4323 
 No need char
  /(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\32/Is
  Capturing subpattern count = 32
  Max back reference = 32
- Partial matching not supported
  Options: dotall
  No first char
  No need char
-Line 4470 
 Need char = 'c'
+Line 4389 
 Need char = 'c'
  /(a+)*zz/I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  Need char = 'z'
-Line 4607 
 Failed: two named subpatterns have the s
+Line 4525 
 Failed: two named subpatterns have the s
  Capturing subpattern count = 3
  Named capturing subpatterns:
    elem   2
- Partial matching not supported
  No options
  First char = '['
  Need char = ']'
-Line 4625 
 No match
+Line 4542 
 No match
  Capturing subpattern count = 3
  Named capturing subpatterns:
    elem   2
- Partial matching not supported
  No options
  First char = '['
  Need char = ']'
-Line 4732 
 No need char
+Line 4648 
 No need char
  /((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/Ii
  Capturing subpattern count = 3
- Partial matching not supported
  Options: caseless
  No first char
  Need char = 'g' (caseless)
-Line 4742 
 Need char = 'g' (caseless)
+Line 4657 
 Need char = 'g' (caseless)
  /((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)/IiS
  Capturing subpattern count = 3
- Partial matching not supported
  Options: caseless
  No first char
  Need char = 'g' (caseless)
- Study returned NULL
+ Subject length lower bound = 8
+ No set of starting bytes
       Baby Bjorn Active Carrier - With free SHIPPING!!
 : Baby Bjorn Active Carrier - With free SHIPPING!!
 : Baby Bjorn Active Carrier - With free SHIPPING!!
-Line 4761 
 Study returned NULL
+Line 4676 
 Study returned NULL
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  Need char = 'b'
- Study returned NULL
+ Subject length lower bound = 1
+ No set of starting bytes
  /(a|b)*.?c/ISDZ
  ------------------------------------------------------------------
-Line 4785 
 Capturing subpattern count = 1
+Line 4700 
 Capturing subpattern count = 1
  No options
  No first char
  Need char = 'c'
- Study returned NULL
+ Subject length lower bound = 1
+ No set of starting bytes
  /abc(?C255)de(?C)f/DZ
  ------------------------------------------------------------------
-Line 4854 
 No match
+Line 4770 
 No match
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options:
  No first char
  Need char = 'b'
-Line 4899 
 Need char = 'b'
+Line 4814 
 Need char = 'b'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options:
  First char = 'a'
  Need char = 'b'
-Line 5337 
 No match
+Line 5251 
 No match
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 1
- Partial matching not supported
  Options:
  No first char
  Need char = '3'
-Line 5369 
 Need char = '3'
+Line 5282 
 Need char = '3'
  /\b.*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 5378 
 No need char
+Line 5290 
 No need char
  /\b.*/Is
  Capturing subpattern count = 0
- Partial matching not supported
  Options: dotall
  No first char
  No need char
-Line 5387 
 No need char
+Line 5298 
 No need char
  /(?!.bcd).*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 5400 
 No options
+Line 5310 
 No options
  First char = 'a'
  Need char = 'e'
      ab\P
- Partial match
+ Partial match: ab
      abc\P
- Partial match
+ Partial match: abc
      abcd\P
- Partial match
+ Partial match: abcd
      abcde\P
 : abcde
      the quick brown abc\P
- Partial match
+ Partial match: abc
      ** Failers\P
  No match
      the quick brown abxyz fox\P
-Line 5433 
 Need char = '/'
+Line 5343 
 Need char = '/'
 : 02
 : 05
 \P
- Partial match
+ Partial match: 1
 /2\P
- Partial match
+ Partial match: 1/2
 /2/0\P
- Partial match
+ Partial match: 1/2/0
 /2/04\P
 : 1/2/04
 : 1
 : 2
 \P
- Partial match
+ Partial match: 0
 /\P
- Partial match
+ Partial match: 02/
 /0\P
- Partial match
+ Partial match: 02/0
 /1\P
- Partial match
+ Partial match: 02/1
      ** Failers\P
  No match
      \P
-Line 5471 
 No match
+Line 5381 
 No match
  /0{0,2}ABC/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  Need char = 'C'
  /\d{3,}ABC/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  Need char = 'C'
  /\d*ABC/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  Need char = 'C'
  /[abc]+DE/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  Need char = 'E'
-Line 5505 
 Need char = '3'
+Line 5411 
 Need char = '3'
 \P
 : 123
      a\P
- Partial match
+ Partial match: a
      b\P
- Partial match
+ Partial match: b
      c\P
- Partial match
+ Partial match: c
      c12\P
- Partial match
+ Partial match: c12
      c123\P
 : c123
-Line 5521 
 Options: anchored
+Line 5427 
 Options: anchored
  No first char
  Need char = 'X'
 \P
- Partial match
+ Partial match: 1
 \P
- Partial match
+ Partial match: 123
 X
 : 123X
 \P
- Partial match
+ Partial match: 1234
 X
 : 1234X
 \P
- Partial match
+ Partial match: 12345
 X
 : 12345X
      *** Failers
-Line 5578 
 Capturing subpattern count = 1
+Line 5484 
 Capturing subpattern count = 1
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b
  Compiled regex written to testsavedregex
  Study data written to testsavedregex
-Line 5598 
 Capturing subpattern count = 1
+Line 5505 
 Capturing subpattern count = 1
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b
  Compiled regex written to testsavedregex
  Study data written to testsavedregex
-Line 5616 
 No match
+Line 5524 
 No match
  ~<(\w+)/?>(.)*</(\1)>~smgI
  Capturing subpattern count = 3
  Max back reference = 1
- Partial matching not supported
  Options: multiline dotall
  First char = '<'
  Need char = '>'
-Line 5669 
 No match
+Line 5576 
 No match
      line one\nthis is a line\nbreak in the second line
  No match
- /ab.cd/IP
+ /ab.cd/P
      ab-cd
 : ab-cd
      ab=cd
-Line 5679 
 No match: POSIX code 17: match failed
+Line 5586 
 No match: POSIX code 17: match failed
      ab\ncd
  No match: POSIX code 17: match failed
- /ab.cd/IPs
+ /ab.cd/Ps
      ab-cd
 : ab-cd
      ab=cd
-Line 5923 
 Matched, but too many substrings
+Line 5830 
 Matched, but too many substrings
  /[^()]*(?:\((?R)\)[^()]*)*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 5936 
 No need char
+Line 5842 
 No need char
  /[^()]*(?:\((?>(?R))\)[^()]*)*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 5947 
 No need char
+Line 5852 
 No need char
  /[^()]*(?:\((?R)\))*[^()]*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 5958 
 No need char
+Line 5862 
 No need char
  /(?:\((?R)\))*[^()]*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 5971 
 No need char
+Line 5874 
 No need char
  /(?:\((?R)\))|[^()]*/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
-Line 5984 
 No need char
+Line 5886 
 No need char
      ((this))
 : ((this))
- /a(b)c/IPN
+ /a(b)c/PN
      abc
  Matched with REG_NOSUB
- /a(?P<name>b)c/IPN
+ /a(?P<name>b)c/PN
      abc
  Matched with REG_NOSUB
-Line 6313 
 Failed: octal value is greater than \377
+Line 6215 
 Failed: octal value is greater than \377
  /\s*,\s*/IS
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  Need char = ','
+ Subject length lower bound = 1
  Starting byte set: \x09 \x0a \x0c \x0d \x20 ,
      \x0b,\x0b
 : ,
-Line 6443 
 Unknown newline type at:
+Line 6345 
 Unknown newline type at:
  /.*/I<lf>
  Capturing subpattern count = 0
- Partial matching not supported
  Options:
  Forced newline sequence: LF
  First char at start or follows newline
-Line 6469 
 No need char
+Line 6370 
 No need char
  /\w+(.)(.)?def/Is
  Capturing subpattern count = 2
- Partial matching not supported
  Options: dotall
  No first char
  Need char = 'f'
-Line 6486 
 Need char = 'f'
+Line 6386 
 Need char = 'f'
  +((?:\s|//.*\\n|/[*](?:\\n|.)*?[*]/)*)+I
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
-Line 6621 
 No need char
+Line 6520 
 No need char
  /(a*b|(?i:c*(?-i)d))/IS
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: C a b c d
  /()[ab]xyz/IS
-Line 6632 
 Capturing subpattern count = 1
+Line 6531 
 Capturing subpattern count = 1
  No options
  No first char
  Need char = 'z'
+ Subject length lower bound = 4
  Starting byte set: a b
  /(|)[ab]xyz/IS
-Line 6639 
 Capturing subpattern count = 1
+Line 6539 
 Capturing subpattern count = 1
  No options
  No first char
  Need char = 'z'
+ Subject length lower bound = 4
  Starting byte set: a b
  /(|c)[ab]xyz/IS
-Line 6646 
 Capturing subpattern count = 1
+Line 6547 
 Capturing subpattern count = 1
  No options
  No first char
  Need char = 'z'
+ Subject length lower bound = 4
  Starting byte set: a b c
  /(|c?)[ab]xyz/IS
-Line 6653 
 Capturing subpattern count = 1
+Line 6555 
 Capturing subpattern count = 1
  No options
  No first char
  Need char = 'z'
+ Subject length lower bound = 4
  Starting byte set: a b c
  /(d?|c?)[ab]xyz/IS
-Line 6660 
 Capturing subpattern count = 1
+Line 6563 
 Capturing subpattern count = 1
  No options
  No first char
  Need char = 'z'
+ Subject length lower bound = 4
  Starting byte set: a b c d
  /(d?|c)[ab]xyz/IS
-Line 6667 
 Capturing subpattern count = 1
+Line 6571 
 Capturing subpattern count = 1
  No options
  No first char
  Need char = 'z'
+ Subject length lower bound = 4
  Starting byte set: a b c d
  /^a*b\d/DZ
-Line 6680 
 Starting byte set: a b c d
+Line 6585 
 Starting byte set: a b c d
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored
  No first char
  Need char = 'b'
-Line 6696 
 Need char = 'b'
+Line 6600 
 Need char = 'b'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored
  No first char
  Need char = 'b'
-Line 6712 
 Need char = 'b'
+Line 6615 
 Need char = 'b'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored
  No first char
  Need char = 'b'
-Line 6728 
 Need char = 'b'
+Line 6630 
 Need char = 'b'
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored
  No first char
  Need char = 'A'
-Line 6750 
 No match
+Line 6651 
 No match
          End
  ------------------------------------------------------------------
  Capturing subpattern count = 0
- Partial matching not supported
  Options: anchored caseless
  No first char
  Need char = 'A' (caseless)
-Line 6761 
 Need char = 'A' (caseless)
+Line 6661 
 Need char = 'A' (caseless)
  /(a*|b*)[cd]/IS
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b c d
  /(a+|b*)[cd]/IS
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b c d
  /(a*|b+)[cd]/IS
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: a b c d
  /(a+|b+)[cd]/IS
  Capturing subpattern count = 1
- Partial matching not supported
  No options
  No first char
  No need char
+ Subject length lower bound = 2
  Starting byte set: a b
  /((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((
-Line 7594 
 No match
+Line 7494 
 No match
          ^
          CBra 1
          Cond
-Cond ref
+Cond nref
          y
          Ket
          [()]
-Line 7660 
 Named capturing subpatterns:
+Line 7560 
 Named capturing subpatterns:
    one     1
    three   3
    two     2
- Partial matching not supported
  Options: anchored caseless
  No first char
  No need char
-Line 7694 
 No match
+Line 7593 
 No match
  /(?=(\w+))\1:/I
  Capturing subpattern count = 1
  Max back reference = 1
- Partial matching not supported
  No options
  No first char
  Need char = ':'
-Line 7707 
 Capturing subpattern count = 1
+Line 7605 
 Capturing subpattern count = 1
  Max back reference = 1
  Named capturing subpatterns:
    abc   1
- Partial matching not supported
  No options
  No first char
  Need char = ':'
-Line 7715 
 Need char = ':'
+Line 7612 
 Need char = ':'
 : abcd:
 : abcd
- /(?'abc'\w+):\k<abc>{2}/
-     a:aaxyz
-: a:aa
-: a
-     ab:ababxyz
-: ab:abab
-: ab
-     ** Failers
- No match
-     a:axyz
- No match
-     ab:abxyz
- No match
  /(?'abc'a|b)(?<abc>d|e)\k<abc>{2}/J
      adaa
 : adaa
-Line 7755 
 No match
+Line 7638 
 No match
      bddd
  No match
- /^(?<ab>a)? (?(<ab>)b|c) (?('ab')d|e)/x
-     abd
-: abd
-: a
-     ce
-: ce
  /(?(<bc))/
  Failed: malformed number or name after (?( at offset 6
-Line 7792 
 Failed: reference to non-existent subpat
+Line 7668 
 Failed: reference to non-existent subpat
 : abcabc1Xabc2XabcX
 : abcabc1Xabc2XabcX
- /^(?(DEFINE) (?<A> a) (?<B> b) )  (?&A) (?&B) /x
-     abcd
-: ab
-: <unset>
-: <unset>
- /(?<NAME>(?&NAME_PAT))\s+(?<ADDR>(?&ADDRESS_PAT))
-   (?(DEFINE)
-   (?<NAME_PAT>[a-z]+)
-   (?<ADDRESS_PAT>\d+)
-   )/x
-     metcalfe 33
-: metcalfe 33
-: metcalfe
-: 33
-: <unset>
-: <unset>
  /^(?(DEFINE) abc | xyz ) /x
  Failed: DEFINE group contains more than one branch at offset 22
-Line 7987 
 Need char = 'P'
+Line 7845 
 Need char = 'P'
 : PXP
 : P
- /(?(DEFINE)(?<byte>2[0-4]\d|25[0-5]|1\d\d|[1-9]?\d))\b(?&byte)(\.(?&byte)){3}/
-.2.3.4
-: 1.2.3.4
-: <unset>
-: .4
-.111.10.206
-: 131.111.10.206
-: <unset>
-: .206
-.0.0.0
-: 10.0.0.0
-: <unset>
-: .0
-     ** Failers
- No match
-.6
- No match
-.3.4.5
- No match
- /\b(?&byte)(\.(?&byte)){3}(?(DEFINE)(?<byte>2[0-4]\d|25[0-5]|1\d\d|[1-9]?\d))/
-.2.3.4
-: 1.2.3.4
-: .4
-: <unset>
-.111.10.206
-: 131.111.10.206
-: .206
-: <unset>
-.0.0.0
-: 10.0.0.0
-: .0
-: <unset>
-     ** Failers
- No match
-.6
- No match
-.3.4.5
- No match
  /(?:a(?&abc)b)*(?<abc>x)/
 axbaxbaxbx456
 : axbaxbaxbx
-Line 8064 
 No match
+Line 7882 
 No match
     DEFabcABCXYZ
  No match
- /^(a(b))\1\g1\g{1}\g-1\g{-1}\g{-02}Z/
-     ababababbbabZXXXX
-: ababababbbabZ
-: ab
-: b
  /^(a)\g-2/
  Failed: reference to non-existent subpattern at offset 7
-Line 8325 
 Failed: reference to non-existent subpat
+Line 8137 
 Failed: reference to non-existent subpat
 : Y!
 : !
- /(foo)\Kbar/
-     foobar
-: bar
-: foo
- /(foo)(\Kbar|baz)/
-     foobar
-: bar
-: foo
-: bar
-     foobaz
-: foobaz
-: foo
-: baz
- /(foo\Kbar)baz/
-     foobarbaz
-: barbaz
-: foobar
  /(?<A>tom|bon)-\k{A}/
      tom-tom
 : tom-tom
-Line 8357 
 No match
+Line 8149 
 No match
      tom-bon
  No match
- /(?<A>tom|bon)-\g{A}/
-     tom-tom
-: tom-tom
-: tom
-     bon-bon
-: bon-bon
-: bon
  /\g{A/
  Failed: syntax error in subpattern name (missing terminator) at offset 4
-Line 8459 
 Failed: syntax error in subpattern name
+Line 8243 
 Failed: syntax error in subpattern name
 : <unset>
 : x
- /(?|(abc)|(xyz))\1/
-     abcabc
-: abcabc
-: abc
-     xyzxyz
-: xyzxyz
-: xyz
-     ** Failers
- No match
-     abcxyz
- No match
-     xyzabc
- No match
- /(?|(abc)|(xyz))(?1)/
-     abcabc
-: abcabc
-: abc
-     xyzabc
-: xyzabc
-: xyz
-     ** Failers
- No match
-     xyzxyz
- No match
- /\H\h\V\v/
-     X X\x0a
-: X X\x0a
-     X\x09X\x0b
-: X\x09X\x0b
-     ** Failers
- No match
-     \xa0 X\x0a
- No match
- /\H*\h+\V?\v{3,4}/
-     \x09\x20\xa0X\x0a\x0b\x0c\x0d\x0a
-: \x09 \xa0X\x0a\x0b\x0c\x0d
-     \x09\x20\xa0\x0a\x0b\x0c\x0d\x0a
-: \x09 \xa0\x0a\x0b\x0c\x0d
-     \x09\x20\xa0\x0a\x0b\x0c
-: \x09 \xa0\x0a\x0b\x0c
-     ** Failers
- No match
-     \x09\x20\xa0\x0a\x0b
- No match
- /\H{3,4}/
-     XY  ABCDE
-: ABCD
-     XY  PQR ST
-: PQR
- /.\h{3,4}./
-     XY  AB    PQRS
-: B    P
- /\h*X\h?\H+Y\H?Z/
-     >XNNNYZ
-: XNNNYZ
-     >  X NYQZ
-:   X NYQZ
-     ** Failers
- No match
-     >XYZ
- No match
-     >  X NY Z
- No match
- /\v*X\v?Y\v+Z\V*\x0a\V+\x0b\V{2,3}\x0c/
-     >XY\x0aZ\x0aA\x0bNN\x0c
-: XY\x0aZ\x0aA\x0bNN\x0c
-     >\x0a\x0dX\x0aY\x0a\x0bZZZ\x0aAAA\x0bNNN\x0c
-: \x0a\x0dX\x0aY\x0a\x0bZZZ\x0aAAA\x0bNNN\x0c
  /[\h]/BZ
  ------------------------------------------------------------------
          Bra
-Line 8831 
 Failed: missing terminating ] for charac
+Line 8539 
 Failed: missing terminating ] for charac
          End
  ------------------------------------------------------------------
- /^a+(*FAIL)/
-     aaaaaa
- No match
- /a+b?c+(*FAIL)/
-     aaabccc
- No match
- /a+b?(*PRUNE)c+(*FAIL)/
-     aaabccc
- No match
- /a+b?(*COMMIT)c+(*FAIL)/
-     aaabccc
- No match
- /a+b?(*SKIP)c+(*FAIL)/
-     aaabcccaaabccc
- No match
- /^(?:aaa(*THEN)\w{6}|bbb(*THEN)\w{5}|ccc(*THEN)\w{4}|\w{3})/
-     aaaxxxxxx
-: aaaxxxxxx
-     aaa++++++
-: aaa
-     bbbxxxxx
-: bbbxxxxx
-     bbb+++++
-: bbb
-     cccxxxx
-: cccxxxx
-     ccc++++
-: ccc
-     dddddddd
-: ddd
- /^(aaa(*THEN)\w{6}|bbb(*THEN)\w{5}|ccc(*THEN)\w{4}|\w{3})/
-     aaaxxxxxx
-: aaaxxxxxx
-: aaaxxxxxx
-     aaa++++++
-: aaa
-: aaa
-     bbbxxxxx
-: bbbxxxxx
-: bbbxxxxx
-     bbb+++++
-: bbb
-: bbb
-     cccxxxx
-: cccxxxx
-: cccxxxx
-     ccc++++
-: ccc
-: ccc
-     dddddddd
-: ddd
-: ddd
- /a+b?(*THEN)c+(*FAIL)/
-     aaabccc
- No match
- /(A (A|B(*ACCEPT)|C) D)(E)/x
-     ABX
-: AB
-     AADE
-: AADE
-: AAD
-: A
-: E
-     ACDE
-: ACDE
-: ACD
-: C
-: E
-     ** Failers
- No match
-     AD
- No match
  /^a+(*FAIL)/C
      aaaaaa
  --->aaaaaa
-Line 9216 
 No match
+Line 8843 
 No match
  /a\R{2,4}b/I<bsr_anycrlf>
  Capturing subpattern count = 0
- Partial matching not supported
  Options: bsr_anycrlf
  First char = 'a'
  Need char = 'b'
-Line 9235 
 No match
+Line 8861 
 No match
  /a\R{2,4}b/I<bsr_unicode>
  Capturing subpattern count = 0
- Partial matching not supported
  Options: bsr_unicode
  First char = 'a'
  Need char = 'b'
-Line 9385 
 Failed: unknown POSIX class name at offs
+Line 9010 
 Failed: unknown POSIX class name at offs
  /[[:a\dz:]]/
  Failed: unknown POSIX class name at offset 3
- /^(?<name>a|b\g<name>c)/
+ /(^(a|b\g<-1'c))/
-     aaaa
+ Failed: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number at offset 15
-: a
-: a
-     bacxxx
-: bac
-: bac
-     bbaccxxx
-: bbacc
-: bbacc
-     bbbacccxx
-: bbbaccc
-: bbbaccc
- /^(?<name>a|b\g'name'c)/
+ /^(?+1)(?<a>x|y){0}z/
-     aaaa
+     xzxx
-: a
+: xz
-: a
+     yzyy
-     bacxxx
+: yz
-: bac
+     ** Failers
-: bac
+ No match
-     bbaccxxx
+     xxz
-: bbacc
+ No match
-: bbacc
-     bbbacccxx
-: bbbaccc
-: bbbaccc
- /^(a|b\g<1>c)/
+ /(\3)(\1)(a)/
-     aaaa
+     cat
-: a
+ No match
-: a
-     bacxxx
-: bac
-: bac
-     bbaccxxx
-: bbacc
-: bbacc
-     bbbacccxx
-: bbbaccc
-: bbbaccc
- /^(a|b\g'1'c)/
+ /(\3)(\1)(a)/<JS>
-     aaaa
+     cat
 : a
-: a
+:
-     bacxxx
+:
-: bac
+: a
-: bac
-     bbaccxxx
+ /TA]/
-: bbacc
+     The ACTA] comes
-: bbacc
+: TA]
-     bbbacccxx
-: bbbaccc
-: bbbaccc
- /^(a|b\g'-1'c)/
+ /TA]/<JS>
-     aaaa
+ Failed: ] is an invalid data character in JavaScript compatibility mode at offset 2
-: a
-: a
-     bacxxx
-: bac
-: bac
-     bbaccxxx
-: bbacc
-: bbacc
-     bbbacccxx
-: bbbaccc
-: bbbaccc
- /(^(a|b\g<-1>c))/
-     aaaa
-: a
-: a
-: a
-     bacxxx
-: bac
-: bac
-: bac
-     bbaccxxx
-: bbacc
-: bbacc
-: bbacc
-     bbbacccxx
-: bbbaccc
-: bbbaccc
-: bbbaccc
- /(^(a|b\g<-1'c))/
- Failed: \g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number at offset 15
- /(^(a|b\g{-1}))/
-     bacxxx
- No match
- /(?-i:\g<name>)(?i:(?<name>a))/
-     XaaX
-: aa
-: a
-     XAAX
-: AA
-: A
- /(?i:\g<name>)(?-i:(?<name>a))/
-     XaaX
-: aa
-: a
-     ** Failers
- No match
-     XAAX
- No match
- /(?-i:\g<+1>)(?i:(a))/
-     XaaX
-: aa
-: a
-     XAAX
-: AA
-: A
- /(?=(?<regex>(?#simplesyntax)\$(?<name>[a-zA-Z_\x{7f}-\x{ff}][a-zA-Z0-9_\x{7f}-\x{ff}]*)(?:\[(?<index>[a-zA-Z0-9_\x{7f}-\x{ff}]+|\$\g<name>)\]|->\g<name>(\(.*?\))?)?|(?#simple syntax withbraces)\$\{(?:\g<name>(?<indices>\[(?:\g<index>|'(?:\\.|[^'\\])*'|"(?:\g<regex>|\\.|[^"\\])*")\])?|\g<complex>|\$\{\g<complex>\})\}|(?#complexsyntax)\{(?<complex>\$(?<segment>\g<name>(\g<indices>*|\(.*?\))?)(?:->\g<segment>)*|\$\g<complex>|\$\{\g<complex>\})\}))\{/
- /(?<n>a|b|c)\g<n>*/
-    abc
-: abc
-: a
-    accccbbb
-: accccbbb
-: a
- /^(?+1)(?<a>x|y){0}z/
-     xzxx
-: xz
-: <unset>
-     yzyy
-: yz
-: <unset>
-     ** Failers
- No match
-     xxz
- No match
- /(\3)(\1)(a)/
-     cat
- No match
- /(\3)(\1)(a)/<JS>
-     cat
-: a
-:
-:
-: a
- /TA]/
-     The ACTA] comes
-: TA]
- /TA]/<JS>
- Failed: ] is an invalid data character in JavaScript compatibility mode at offset 2
  /(?2)[]a()b](abc)/
  Failed: reference to non-existent subpattern at offset 3
-Line 9636 
 Capturing subpattern count = 1
+Line 9132 
 Capturing subpattern count = 1
  No options
  No first char
  No need char
+ Subject length lower bound = 1
  Starting byte set: x y z
  /(?(?=.*b)b|^)/CI
  Capturing subpattern count = 0
- Partial matching not supported
  Options:
  No first char
  No need char
-Line 9680 
 No need char
+Line 9176 
 No need char
  /(?(?=b).*b|^d)/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  No first char
  No need char
  /(?(?=.*b).*b|^d)/I
  Capturing subpattern count = 0
- Partial matching not supported
  No options
  First char at start or follows newline
  No need char
-Line 9786 
 No match
+Line 9280 
 No match
 : "ab"
 :
- /^X(?5)(a)(?|(b)|(q))(c)(d)(Y)/
-     XYabcdY
-: XYabcdY
-: a
-: b
-: c
-: d
-: Y
  /^X(?5)(a)(?|(b)|(q))(c)(d)Y/
  Failed: reference to non-existent subpattern at offset 5
-Line 9807 
 Failed: reference to non-existent subpat
+Line 9292 
 Failed: reference to non-existent subpat
 : d
 : Y
- /^X(?7)(a)(?|(b)|(q)(r)(s))(c)(d)(Y)/
+ /Xa{2,4}b/
-     XYabcdY
+     X\P
-: XYabcdY
+ Partial match: X
-: a
+     Xa\P
-: b
+ Partial match: Xa
-: <unset>
+     Xaa\P
-: <unset>
+ Partial match: Xaa
-: c
+     Xaaa\P
-: d
+ Partial match: Xaaa
-: Y
+     Xaaaa\P
+ Partial match: Xaaaa
+ /Xa{2,4}?b/
+     X\P
+ Partial match: X
+     Xa\P
+ Partial match: Xa
+     Xaa\P
+ Partial match: Xaa
+     Xaaa\P
+ Partial match: Xaaa
+     Xaaaa\P
+ Partial match: Xaaaa
+ /Xa{2,4}+b/
+     X\P
+ Partial match: X
+     Xa\P
+ Partial match: Xa
+     Xaa\P
+ Partial match: Xaa
+     Xaaa\P
+ Partial match: Xaaa
+     Xaaaa\P
+ Partial match: Xaaaa
+ /X\d{2,4}b/
+     X\P
+ Partial match: X
+     X3\P
+ Partial match: X3
+     X33\P
+ Partial match: X33
+     X333\P
+ Partial match: X333
+     X3333\P
+ Partial match: X3333
+ /X\d{2,4}?b/
+     X\P
+ Partial match: X
+     X3\P
+ Partial match: X3
+     X33\P
+ Partial match: X33
+     X333\P
+ Partial match: X333
+     X3333\P
+ Partial match: X3333
+ /X\d{2,4}+b/
+     X\P
+ Partial match: X
+     X3\P
+ Partial match: X3
+     X33\P
+ Partial match: X33
+     X333\P
+ Partial match: X333
+     X3333\P
+ Partial match: X3333
+ /X\D{2,4}b/
+     X\P
+ Partial match: X
+     Xa\P
+ Partial match: Xa
+     Xaa\P
+ Partial match: Xaa
+     Xaaa\P
+ Partial match: Xaaa
+     Xaaaa\P
+ Partial match: Xaaaa
+ /X\D{2,4}?b/
+     X\P
+ Partial match: X
+     Xa\P
+ Partial match: Xa
+     Xaa\P
+ Partial match: Xaa
+     Xaaa\P
+ Partial match: Xaaa
+     Xaaaa\P
+ Partial match: Xaaaa
+ /X\D{2,4}+b/
+     X\P
+ Partial match: X
+     Xa\P
+ Partial match: Xa
+     Xaa\P
+ Partial match: Xaa
+     Xaaa\P
+ Partial match: Xaaa
+     Xaaaa\P
+ Partial match: Xaaaa
+ /X[abc]{2,4}b/
+     X\P
+ Partial match: X
+     Xa\P
+ Partial match: Xa
+     Xaa\P
+ Partial match: Xaa
+     Xaaa\P
+ Partial match: Xaaa
+     Xaaaa\P
+ Partial match: Xaaaa
+ /X[abc]{2,4}?b/
+     X\P
+ Partial match: X
+     Xa\P
+ Partial match: Xa
+     Xaa\P
+ Partial match: Xaa
+     Xaaa\P
+ Partial match: Xaaa
+     Xaaaa\P
+ Partial match: Xaaaa
+ /X[abc]{2,4}+b/
+     X\P
+ Partial match: X
+     Xa\P
+ Partial match: Xa
+     Xaa\P
+ Partial match: Xaa
+     Xaaa\P
+ Partial match: Xaaa
+     Xaaaa\P
+ Partial match: Xaaaa
+ /X[^a]{2,4}b/
+     X\P
+ Partial match: X
+     Xz\P
+ Partial match: Xz
+     Xzz\P
+ Partial match: Xzz
+     Xzzz\P
+ Partial match: Xzzz
+     Xzzzz\P
+ Partial match: Xzzzz
+ /X[^a]{2,4}?b/
+     X\P
+ Partial match: X
+     Xz\P
+ Partial match: Xz
+     Xzz\P
+ Partial match: Xzz
+     Xzzz\P
+ Partial match: Xzzz
+     Xzzzz\P
+ Partial match: Xzzzz
+ /X[^a]{2,4}+b/
+     X\P
+ Partial match: X
+     Xz\P
+ Partial match: Xz
+     Xzz\P
+ Partial match: Xzz
+     Xzzz\P
+ Partial match: Xzzz
+     Xzzzz\P
+ Partial match: Xzzzz
+ /(Y)X\1{2,4}b/
+     YX\P
+ Partial match: YX
+     YXY\P
+ Partial match: YXY
+     YXYY\P
+ Partial match: YXYY
+     YXYYY\P
+ Partial match: YXYYY
+     YXYYYY\P
+ Partial match: YXYYYY
+ /(Y)X\1{2,4}?b/
+     YX\P
+ Partial match: YX
+     YXY\P
+ Partial match: YXY
+     YXYY\P
+ Partial match: YXYY
+     YXYYY\P
+ Partial match: YXYYY
+     YXYYYY\P
+ Partial match: YXYYYY
+ /(Y)X\1{2,4}+b/
+     YX\P
+ Partial match: YX
+     YXY\P
+ Partial match: YXY
+     YXYY\P
+ Partial match: YXYY
+     YXYYY\P
+ Partial match: YXYYY
+     YXYYYY\P
+ Partial match: YXYYYY
+ /\++\KZ|\d+X|9+Y/
+     ++++123999\P
+ Partial match: 123999
+     ++++123999Y\P
+: 999Y
+     ++++Z1234\P
+: Z
- /^X(?7)(a)(?|(b|(r)(s))|(q))(c)(d)(Y)/
+ /Z(*F)/
-     XYabcdY
+     Z\P
-: XYabcdY
+ No match
+     ZA\P
+ No match
+ /Z(?!)/
+     Z\P
+ No match
+     ZA\P
+ No match
+ /dog(sbody)?/
+     dogs\P
+: dog
+     dogs\P\P
+ Partial match: dogs
+ /dog(sbody)??/
+     dogs\P
+: dog
+     dogs\P\P
+: dog
+ /dog|dogsbody/
+     dogs\P
+: dog
+     dogs\P\P
+: dog
+ /dogsbody|dog/
+     dogs\P
+: dog
+     dogs\P\P
+ Partial match: dogs
+ /\bthe cat\b/
+     the cat\P
+: the cat
+     the cat\P\P
+ Partial match: the cat
+ /abc/
+    abc\P
+: abc
+    abc\P\P
+: abc
+ /\w+A/P
+    CDAAAAB
+: CDAAAA
+ /\w+A/PU
+    CDAAAAB
+: CDA
+ /abc\K123/
+     xyzabc123pqr
+: 123
+     xyzabc12\P
+ Partial match: abc12
+     xyzabc12\P\P
+ Partial match: abc12
+ /(?<=abc)123/
+     xyzabc123pqr
+: 123
+     xyzabc12\P
+ Partial match: abc12
+     xyzabc12\P\P
+ Partial match: abc12
+ /\babc\b/
+     +++abc+++
+: abc
+     +++ab\P
+ Partial match: +ab
+     +++ab\P\P
+ Partial match: +ab
+ /(?&word)(?&element)(?(DEFINE)(?<element><[^m][^>]>[^<])(?<word>\w*+))/BZ
+ ------------------------------------------------------------------
+         Bra
+         Once
+         Recurse
+         Ket
+         Once
+         Recurse
+         Ket
+         Cond
+         Cond def
+         CBra 1
+         <
+         [^m]
+         [^>]
+         >
+         [^<]
+         Ket
+         CBra 2
+         \w*+
+         Ket
+         Ket
+         Ket
+         End
+ ------------------------------------------------------------------
+ /(?&word)(?&element)(?(DEFINE)(?<element><[^\d][^>]>[^<])(?<word>\w*+))/BZ
+ ------------------------------------------------------------------
+         Bra
+         Once
+         Recurse
+         Ket
+         Once
+         Recurse
+         Ket
+         Cond
+         Cond def
+         CBra 1
+         <
+         [\x00-/:-\xff] (neg)
+         [^>]
+         >
+         [^<]
+         Ket
+         CBra 2
+         \w*+
+         Ket
+         Ket
+         Ket
+         End
+ ------------------------------------------------------------------
+ /(ab)(x(y)z(cd(*ACCEPT)))pq/BZ
+ ------------------------------------------------------------------
+         Bra
+         CBra 1
+         ab
+         Ket
+         CBra 2
+         x
+         CBra 3
+         y
+         Ket
+         z
+         CBra 4
+         cd
+         Close 4
+         Close 2
+         *ACCEPT
+         Ket
+         Ket
+         pq
+         Ket
+         End
+ ------------------------------------------------------------------
+ /abc\K/+
+     abcdef
+:
++ def
+     abcdef\N\N
+:
++ def
+     xyzabcdef\N\N
+:
++ def
+     ** Failers
+ No match
+     abcdef\N
+ No match
+     xyzabcdef\N
+ No match
+ /^(?:(?=abc)|abc\K)/+
+     abcdef
+:
++ abcdef
+     abcdef\N\N
+:
++ def
+     ** Failers
+ No match
+     abcdef\N
+ No match
+ /a?b?/+
+     xyz
+:
++ xyz
+     xyzabc
+:
++ xyzabc
+     xyzabc\N
+: ab
++ c
+     xyzabc\N\N
+:
++ yzabc
+     xyz\N\N
+:
++ yz
+     ** Failers
+:
++ ** Failers
+     xyz\N
+ No match
+ /^a?b?/+
+     xyz
+:
++ xyz
+     xyzabc
+:
++ xyzabc
+     ** Failers
+:
++ ** Failers
+     xyzabc\N
+ No match
+     xyzabc\N\N
+ No match
+     xyz\N\N
+ No match
+     xyz\N
+ No match
+ /^(?<name>a|b\g<name>c)/
+     aaaa
+: a
 : a
-: b
+     bacxxx
-: <unset>
+: bac
-: <unset>
+: bac
-: c
+     bbaccxxx
-: d
+: bbacc
-: Y
+: bbacc
+     bbbacccxx
+: bbbaccc
+: bbbaccc
- /^X(?7)(a)(?|(b|(?|(r)|(t))(s))|(q))(c)(d)(Y)/
+ /^(?<name>a|b\g'name'c)/
-     XYabcdY
+     aaaa
-: XYabcdY
+: a
 : a
-: b
+     bacxxx
-: <unset>
+: bac
-: <unset>
+: bac
-: c
+     bbaccxxx
-: d
+: bbacc
-: Y
+: bbacc
+     bbbacccxx
+: bbbaccc
+: bbbaccc
+ /^(a|b\g<1>c)/
+     aaaa
+: a
+: a
+     bacxxx
+: bac
+: bac
+     bbaccxxx
+: bbacc
+: bbacc
+     bbbacccxx
+: bbbaccc
+: bbbaccc
+ /^(a|b\g'1'c)/
+     aaaa
+: a
+: a
+     bacxxx
+: bac
+: bac
+     bbaccxxx
+: bbacc
+: bbacc
+     bbbacccxx
+: bbbaccc
+: bbbaccc
+ /^(a|b\g'-1'c)/
+     aaaa
+: a
+: a
+     bacxxx
+: bac
+: bac
+     bbaccxxx
+: bbacc
+: bbacc
+     bbbacccxx
+: bbbaccc
+: bbbaccc
+ /(^(a|b\g<-1>c))/
+     aaaa
+: a
+: a
+: a
+     bacxxx
+: bac
+: bac
+: bac
+     bbaccxxx
+: bbacc
+: bbacc
+: bbacc
+     bbbacccxx
+: bbbaccc
+: bbbaccc
+: bbbaccc
+ /(?-i:\g<name>)(?i:(?<name>a))/
+     XaaX
+: aa
+: a
+     XAAX
+: AA
+: A
+ /(?i:\g<name>)(?-i:(?<name>a))/
+     XaaX
+: aa
+: a
+     ** Failers
+ No match
+     XAAX
+ No match
+ /(?-i:\g<+1>)(?i:(a))/
+     XaaX
+: aa
+: a
+     XAAX
+: AA
+: A
+ /(?=(?<regex>(?#simplesyntax)\$(?<name>[a-zA-Z_\x{7f}-\x{ff}][a-zA-Z0-9_\x{7f}-\x{ff}]*)(?:\[(?<index>[a-zA-Z0-9_\x{7f}-\x{ff}]+|\$\g<name>)\]|->\g<name>(\(.*?\))?)?|(?#simple syntax withbraces)\$\{(?:\g<name>(?<indices>\[(?:\g<index>|'(?:\\.|[^'\\])*'|"(?:\g<regex>|\\.|[^"\\])*")\])?|\g<complex>|\$\{\g<complex>\})\}|(?#complexsyntax)\{(?<complex>\$(?<segment>\g<name>(\g<indices>*|\(.*?\))?)(?:->\g<segment>)*|\$\g<complex>|\$\{\g<complex>\})\}))\{/
+ /(?<n>a|b|c)\g<n>*/
+    abc
+: abc
+: a
+    accccbbb
+: accccbbb
+: a
+ /^X(?7)(a)(?|(b)|(q)(r)(s))(c)(d)(Y)/
+     XYabcdY
+: XYabcdY
+: a
+: b
+: <unset>
+: <unset>
+: c
+: d
+: Y
+ /(?<=b(?1)|zzz)(a)/
+     xbaax
+: a
+: a
+     xzzzax
+: a
+: a
+ /(a)(?<=b\1)/
+ Failed: lookbehind assertion is not fixed length at offset 10
+ /(a)(?<=b+(?1))/
+ Failed: lookbehind assertion is not fixed length at offset 13
+ /(a+)(?<=b(?1))/
+ Failed: lookbehind assertion is not fixed length at offset 14
+ /(a(?<=b(?1)))/
+ Failed: lookbehind assertion is not fixed length at offset 13
+ /(?<=b(?1))xyz/
+ Failed: reference to non-existent subpattern at offset 8
+ /(?<=b(?1))xyz(b+)pqrstuvew/
+ Failed: lookbehind assertion is not fixed length at offset 26
+ /(a|bc)\1/SI
+ Capturing subpattern count = 1
+ Max back reference = 1
+ No options
+ No first char
+ No need char
+ Subject length lower bound = 2
+ Starting byte set: a b
+ /(a|bc)\1{2,3}/SI
+ Capturing subpattern count = 1
+ Max back reference = 1
+ No options
+ No first char
+ No need char
+ Subject length lower bound = 3
+ Starting byte set: a b
+ /(a|bc)(?1)/SI
+ Capturing subpattern count = 1
+ No options
+ No first char
+ No need char
+ Subject length lower bound = 2
+ Starting byte set: a b
+ /(a|b\1)(a|b\1)/SI
+ Capturing subpattern count = 2
+ Max back reference = 1
+ No options
+ No first char
+ No need char
+ Subject length lower bound = 2
+ Starting byte set: a b
+ /(a|b\1){2}/SI
+ Capturing subpattern count = 1
+ Max back reference = 1
+ No options
+ No first char
+ No need char
+ Subject length lower bound = 2
+ Starting byte set: a b
+ /(a|bbbb\1)(a|bbbb\1)/SI
+ Capturing subpattern count = 2
+ Max back reference = 1
+ No options
+ No first char
+ No need char
+ Subject length lower bound = 2
+ Starting byte set: a b
+ /(a|bbbb\1){2}/SI
+ Capturing subpattern count = 1
+ Max back reference = 1
+ No options
+ No first char
+ No need char
+ Subject length lower bound = 2
+ Starting byte set: a b
+ /^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
+ Capturing subpattern count = 1
+ Options: anchored
+ No first char
+ Need char = ':'
+ Subject length lower bound = 22
+ No set of starting bytes
+ /  (?: [\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
+ Capturing subpattern count = 0
+ Contains explicit CR or LF match
+ Options: extended
+ No first char
+ No need char
+ Subject length lower bound = 3
+ Starting byte set: \x09 \x20 ! " # $ % & ' ( * + - / 0 1 2 3 4 5 6 7 8
+= ? A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ^ _ ` a b c d e
+   f g h i j k l m n o p q r s t u v w x y z { | } ~ \x7f
+ /<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
+ Capturing subpattern count = 11
+ Options: caseless dotall
+ First char = '<'
+ Need char = '>'
+ Subject length lower bound = 47
+ No set of starting bytes
+ "(?>.*/)foo"SI
+ Capturing subpattern count = 0
+ No options
+ First char at start or follows newline
+ Need char = 'o'
+ Subject length lower bound = 4
+ No set of starting bytes
+ /(?(?=[^a-z]+[a-z])  \d{2}-[a-z]{3}-\d{2}  |  \d{2}-\d{2}-\d{2} ) /xSI
+ Capturing subpattern count = 0
+ Options: extended
+ No first char
+ Need char = '-'
+ Subject length lower bound = 8
+ No set of starting bytes
+ /(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))/iSI
+ Capturing subpattern count = 1
+ Options: caseless
+ No first char
+ No need char
+ Subject length lower bound = 1
+ Starting byte set: A B C a b c
+ /(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))/SI
+ Capturing subpattern count = 0
+ No options
+ No first char
+ Need char = 'b'
+ Subject length lower bound = 41
+ Starting byte set: c d
+ /<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
+ Capturing subpattern count = 3
+ Max back reference = 1
+ Options: caseless extended dotall
+ First char = '<'
+ Need char = '='
+ Subject length lower bound = 9
+ No set of starting bytes
+ /^(?!:)                       # 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
+ Capturing subpattern count = 1
+ Options: anchored caseless extended
+ No first char
+ Need char = ':'
+ Subject length lower bound = 2
+ No set of starting bytes
+ /(?|(?<a>A)|(?<a>B))/I
+ Capturing subpattern count = 1
+ Named capturing subpatterns:
+   a   1
+   a   1
+ No options
+ No first char
+ No need char
+     AB\Ca
+: A
+: A
+   C A (1) a
+     BA\Ca
+: B
+: B
+   C B (1) a
+ /(?|(?<a>A)|(?<b>B))/
+ Failed: different names for subpatterns of the same number are not allowed at offset 15
+ /(?:a(?<quote> (?<apostrophe>')|(?<realquote>")) |
+     b(?<quote> (?<apostrophe>')|(?<realquote>")) )
+     (?('quote')[a-z]+|[0-9]+)/JIx
+ Capturing subpattern count = 6
+ Named capturing subpatterns:
+   apostrophe   2
+   apostrophe   5
+   quote        1
+   quote        4
+   realquote    3
+   realquote    6
+ Options: extended dupnames
+ No first char
+ No need char
+     a"aaaaa
+: a"aaaaa
+: "
+: <unset>
+: "
+     b"aaaaa
+: b"aaaaa
+: <unset>
+: <unset>
+: <unset>
+: "
+: <unset>
+: "
+     ** Failers
+ No match
+     b"11111
+ No match
+     a"11111
+ No match
+ /^(?|(a)(b)(c)(?<D>d)|(?<D>e)) (?('D')X|Y)/JDZx
+ ------------------------------------------------------------------
+         Bra
+         ^
+         Bra
+         CBra 1
+         a
+         Ket
+         CBra 2
+         b
+         Ket
+         CBra 3
+         c
+         Ket
+         CBra 4
+         d
+         Ket
+         Alt
+         CBra 1
+         e
+         Ket
+         Ket
+         Cond
+Cond nref
+         X
+         Alt
+         Y
+         Ket
+         Ket
+         End
+ ------------------------------------------------------------------
+ Capturing subpattern count = 4
+ Named capturing subpatterns:
+   D   4
+   D   1
+ Options: anchored extended dupnames
+ No first char
+ No need char
+     abcdX
+: abcdX
+: a
+: b
+: c
+: d
+     eX
+: eX
+: e
+     ** Failers
+ No match
+     abcdY
+ No match
+     ey
+ No match
+ /(?<A>a) (b)(c)  (?<A>d  (?(R&A)$ | (?4)) )/JDZx
+ ------------------------------------------------------------------
+         Bra
+         CBra 1
+         a
+         Ket
+         CBra 2
+         b
+         Ket
+         CBra 3
+         c
+         Ket
+         CBra 4
+         d
+         Cond
+         Cond nrecurse 1
+         $
+         Alt
+         Once
+         Recurse
+         Ket
+         Ket
+         Ket
+         Ket
+         End
+ ------------------------------------------------------------------
+ Capturing subpattern count = 4
+ Named capturing subpatterns:
+   A   1
+   A   4
+ Options: extended dupnames
+ First char = 'a'
+ Need char = 'd'
+     abcdd
+: abcdd
+: a
+: b
+: c
+: dd
+     ** Failers
+ No match
+     abcdde
+ No match
+ /abcd*/
+     xxxxabcd\P
+: abcd
+     xxxxabcd\P\P
+ Partial match: abcd
+ /abcd*/i
+     xxxxabcd\P
+: abcd
+     xxxxabcd\P\P
+ Partial match: abcd
+     XXXXABCD\P
+: ABCD
+     XXXXABCD\P\P
+ Partial match: ABCD
+ /abc\d*/
+     xxxxabc1\P
+: abc1
+     xxxxabc1\P\P
+ Partial match: abc1
+ /(a)bc\1*/
+     xxxxabca\P
+: abca
+: a
+     xxxxabca\P\P
+ Partial match: abca
+ /abc[de]*/
+     xxxxabcde\P
+: abcde
+     xxxxabcde\P\P
+ Partial match: abcde
+ /-- 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
+: ABD
+: B
+     XABD
+: ABD
+: B
+     BAD
+: BAD
+: A
+     ABXABD
+: ABD
+: B
+     ** Failers
+ No match
+     ABX
+ No match
+     BAXBAD
+ No match
+ /(\3)(\1)(a)/<JS>
+     cat
+: a
+:
+:
+: a
+ /(\3)(\1)(a)/SI<JS>
+ Capturing subpattern count = 3
+ Max back reference = 3
+ Options:
+ No first char
+ Need char = 'a'
+ Subject length lower bound = 1
+ No set of starting bytes
+     cat
+: a
+:
+:
+: a
+ /(\3)(\1)(a)/SI
+ Capturing subpattern count = 3
+ Max back reference = 3
+ No options
+ No first char
+ Need char = 'a'
+ Subject length lower bound = 3
+ No set of starting bytes
+     cat
+ No match
+ /i(?(DEFINE)(?<s>a))/SI
+ Capturing subpattern count = 1
+ Named capturing subpatterns:
+   s   1
+ No options
+ First char = 'i'
+ No need char
+ Subject length lower bound = 1
+ No set of starting bytes
+     i
+: i
+ /()i(?(1)a)/SI
+ Capturing subpattern count = 1
+ No options
+ No first char
+ Need char = 'i'
+ Subject length lower bound = 1
+ Starting byte set: i
+     ia
+: ia
+:
+ /(?i)a(?-i)b|c/BZ
+ ------------------------------------------------------------------
+         Bra
+      NC a
+Opt
+         b
+         Alt
+Opt
+         c
+         Ket
+         End
+ ------------------------------------------------------------------
+     XabX
+: ab
+     XAbX
+: Ab
+     CcC
+: c
+     ** Failers
+ No match
+     XABX
+ No match
+ /(?i)a(?s)b|c/BZ
+ ------------------------------------------------------------------
+         Bra
+      NC a
+Opt
+      NC b
+         Alt
+Opt
+      NC c
+         Ket
+         End
+ ------------------------------------------------------------------
+ /(?i)a(?s-i)b|c/BZ
+ ------------------------------------------------------------------
+         Bra
+      NC a
+Opt
+         b
+         Alt
+Opt
+         c
+         Ket
+         End
+ ------------------------------------------------------------------
+ /^(ab(c\1)d|x){2}$/BZ
+ ------------------------------------------------------------------
+         Bra
+         ^
+         Once
+         CBra 1
+         ab
+         CBra 2
+         c
+         \1
+         Ket
+         d
+         Alt
+         x
+         Ket
+         Ket
+         Once
+         CBra 1
+         ab
+         CBra 2
+         c
+         \1
+         Ket
+         d
+         Alt
+         x
+         Ket
+         Ket
+         $
+         Ket
+         End
+ ------------------------------------------------------------------
+     xabcxd
+: xabcxd
+: abcxd
+: cx
+ /^(?&t)*+(?(DEFINE)(?<t>.))$/BZ
+ ------------------------------------------------------------------
+         Bra
+         ^
+         Once
+         Brazero
+         Once
+         Recurse
+         KetRmax
+         Ket
+         Cond
+         Cond def
+         CBra 1
+         Any
+         Ket
+         Ket
+         $
+         Ket
+         End
+ ------------------------------------------------------------------
+ /^(?&t)*(?(DEFINE)(?<t>.))$/BZ
+ ------------------------------------------------------------------
+         Bra
+         ^
+         Brazero
+         Once
+         Recurse
+         KetRmax
+         Cond
+         Cond def
+         CBra 1
+         Any
+         Ket
+         Ket
+         $
+         Ket
+         End
+ ------------------------------------------------------------------
+ / -- 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
+: b
+ /(?!a\Kb)ac/
+     ac
+: ac
+ /^abc(?<=b\Kc)d/
+     abcd
+: cd
+ /^abc(?<!b\Kq)d/
+     abcd
+: abcd
+ /(?>a\Kb)z|(ab)/
+     ab
+: ab
+: ab
+ /----------------------/
- / End of testinput2 /
+ /-- End of testinput2 --/

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