/-- Do not use the \x{} construct except with patterns that have the --/
/-- /8 option set, because PCRE doesn't recognize them as UTF-8 unless --/
No match
/-- that option is set. However, the latest Perls recognize them always. --/
No match

\x{100}ab/8
  \x{100}ab
 0: \x{100}ab
  
/a\x{100}*b/8
    ab
 0: ab
    a\x{100}b  
 0: a\x{100}b
    a\x{100}\x{100}b  
 0: a\x{100}\x{100}b
    
/a\x{100}+b/8
    a\x{100}b  
 0: a\x{100}b
    a\x{100}\x{100}b  
 0: a\x{100}\x{100}b
    *** Failers 
No match
    ab
No match
     
/\bX/8
    Xoanon
 0: X
    +Xoanon
 0: X
    \x{300}Xoanon 
 0: X
    *** Failers 
No match
    YXoanon  
No match
    
/\BX/8
    YXoanon
 0: X
    *** Failers
No match
    Xoanon
No match
    +Xoanon    
No match
    \x{300}Xoanon 
No match

/X\b/8
    X+oanon
 0: X
    ZX\x{300}oanon 
 0: X
    FAX 
 0: X
    *** Failers 
No match
    Xoanon  
No match
    
/X\B/8
    Xoanon  
 0: X
    *** Failers
No match
    X+oanon
No match
    ZX\x{300}oanon 
No match
    FAX 
No match
    
/[^a]/8
    abcd
 0: b
    a\x{100}   
 0: \x{100}

/^[abc\x{123}\x{400}-\x{402}]{2,3}\d/8
    ab99
 0: ab9
    \x{123}\x{123}45
 0: \x{123}\x{123}4
    \x{400}\x{401}\x{402}6  
 0: \x{400}\x{401}\x{402}6
    *** Failers
No match
    d99
No match
    \x{123}\x{122}4   
No match
    \x{400}\x{403}6  
No match
    \x{400}\x{401}\x{402}\x{402}6  
No match

/abc/8
    ร]
Error -10
    ร
Error -10
    รรร
Error -10
    รรร\?
No match

/a.b/8
    acb
 0: acb
    a\x7fb
 0: a\x{7f}b
    a\x{100}b 
 0: a\x{100}b
    *** Failers
No match
    a\nb  
No match

/^[a\x{c0}]/8
    *** Failers
No match
    \x{100}
No match

/(?<=aXb)cd/8
    aXbcd
 0: cd

/(?<=a\x{100}b)cd/8
    a\x{100}bcd
 0: cd

/(?<=a\x{100000}b)cd/8
    a\x{100000}bcd
 0: cd
    
/(?:\x{100}){3}b/8
    \x{100}\x{100}\x{100}b
 0: \x{100}\x{100}\x{100}b
    *** Failers 
No match
    \x{100}\x{100}b
No match

/\x{ab}/8
    \x{ab} 
 0: \x{ab}
    \xc2\xab
 0: \x{ab}
    *** Failers 
No match
    \x00{ab}
No match

/^[^a]{2}/8
    \x{100}bc
 0: \x{100}b
 
/^[^a]{2,}/8
    \x{100}bcAa
 0: \x{100}bcA

/^[^a]{2,}?/8
    \x{100}bca
 0: \x{100}b

/^[^a]{2}/8i
    \x{100}bc
 0: \x{100}b
 
/^[^a]{2,}/8i
    \x{100}bcAa
 0: \x{100}bc

/^[^a]{2,}?/8iU
    \x{100}bca
 0: \x{100}bc

/\x{100}{0,0}/8
    abcd
 0: 
 
/\x{100}?/8
    abcd
 0: 
    \x{100}\x{100} 
 0: \x{100}

/\x{100}{0,3}/8 
    \x{100}\x{100} 
 0: \x{100}\x{100}
    \x{100}\x{100}\x{100}\x{100} 
 0: \x{100}\x{100}\x{100}
    
/\x{100}*/8
    abce
 0: 
    \x{100}\x{100}\x{100}\x{100} 
 0: \x{100}\x{100}\x{100}\x{100}

/\x{100}{1,1}/8
    abcd\x{100}\x{100}\x{100}\x{100} 
 0: \x{100}

/\x{100}{1,3}/8
    abcd\x{100}\x{100}\x{100}\x{100} 
 0: \x{100}\x{100}\x{100}

/\x{100}+/8
    abcd\x{100}\x{100}\x{100}\x{100} 
 0: \x{100}\x{100}\x{100}\x{100}

/\x{100}{3}/8
    abcd\x{100}\x{100}\x{100}XX
 0: \x{100}\x{100}\x{100}

/\x{100}{3,5}/8
    abcd\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}XX
 0: \x{100}\x{100}\x{100}\x{100}\x{100}

/\x{100}{3,}/8
    abcd\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}XX
 0: \x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}

/(?<=a\x{100}{2}b)X/8
    Xyyya\x{100}\x{100}bXzzz
 0: X

/\D*/8
  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

/\D*/8
  \x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}
 0: \x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}

/\D/8
    1X2
 0: X
    1\x{100}2 
 0: \x{100}
  
/>\S/8
    > >X Y
 0: >X
    > >\x{100} Y
 0: >\x{100}
  
/\d/8
    \x{100}3
 0: 3
    
/\s/8
    \x{100} X
 0:  
    
/\D+/8
    12abcd34
 0: abcd
    *** Failers
 0: *** Failers
    1234  
No match

/\d+/8
    12abcd34
 0: 12
     *** Failers
No match

/\d{2,3}/8
    12abcd34
 0: 12
    1234abcd
 0: 123
     *** Failers  
No match
    1.4 
No match

/\S+/8
    12abcd34
 0: 12abcd34
    *** Failers
 0: ***
     \    \ 
No match

/>\s+</8
    12>      <34
 0: >      <
    *** Failers
No match

/>\s{2,3}</8
    ab>  <cd
 0: >  <
    ab>   <ce
 0: >   <
    *** Failers
No match
    ab>    <cd 
No match

/>\s{2,3}?</8
    ab>  <cd
 0: >  <
    ab>   <ce
 0: >   <
    *** Failers
No match
    ab>    <cd 
No match

/\w+/8
    12      34
 0: 12
     *** Failers
 0: Failers
    +++=*! 
No match

/\w{2,3}/8
    ab  cd
 0: ab
    abcd ce
 0: abc
    *** Failers
 0: Fai
    a.b.c
No match

/\W+/8
    12====34
 0: ====
    *** Failers
 0: *** 
    abcd 
No match

/\W{2,3}/8
    ab====cd
 0: ===
    ab==cd
 0: ==
    *** Failers
 0: ***
    a.b.c
No match

/\W{2,3}?/8U
    ab====cd
 0: ===
     ab==cd
 0: ==
    *** Failers
 0: ***
     a.b.c
No match

/[\x{100}]/8
    \x{100}
 0: \x{100}
    Z\x{100}
 0: \x{100}
    \x{100}Z
 0: \x{100}
    *** Failers 
No match

/[Z\x{100}]/8
    Z\x{100}
 0: Z
    \x{100}
 0: \x{100}
    \x{100}Z
 0: \x{100}
    *** Failers 
No match

/[\x{100}\x{200}]/8
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   *** Failers  
No match

/[\x{100}-\x{200}]/8
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   ab\x{111}cd 
 0: \x{111}
   *** Failers  
No match

/[z-\x{200}]/8
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   ab\x{111}cd 
 0: \x{111}
   abzcd
 0: z
   ab|cd  
 0: |
   *** Failers  
No match

/[Q\x{100}\x{200}]/8
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   Q? 
 0: Q
   *** Failers  
No match

/[Q\x{100}-\x{200}]/8
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   ab\x{111}cd 
 0: \x{111}
   Q? 
 0: Q
   *** Failers  
No match

/[Qz-\x{200}]/8
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   ab\x{111}cd 
 0: \x{111}
   abzcd
 0: z
   ab|cd  
 0: |
   Q? 
 0: Q
   *** Failers  
No match

/[\x{100}\x{200}]{1,3}/8
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   ab\x{200}\x{100}\x{200}\x{100}cd
 0: \x{200}\x{100}\x{200}
   *** Failers  
No match

/[\x{100}\x{200}]{1,3}?/8U
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   ab\x{200}\x{100}\x{200}\x{100}cd
 0: \x{200}\x{100}\x{200}
   *** Failers  
No match

/[Q\x{100}\x{200}]{1,3}/8
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   ab\x{200}\x{100}\x{200}\x{100}cd
 0: \x{200}\x{100}\x{200}
   *** Failers  
No match

/[Q\x{100}\x{200}]{1,3}?/8U
   ab\x{100}cd
 0: \x{100}
   ab\x{200}cd
 0: \x{200}
   ab\x{200}\x{100}\x{200}\x{100}cd
 0: \x{200}\x{100}\x{200}
   *** Failers  
No match

/(?<=[\x{100}\x{200}])X/8
    abc\x{200}X
 0: X
    abc\x{100}X 
 0: X
    *** Failers
No match
    X  
No match

/(?<=[Q\x{100}\x{200}])X/8
    abc\x{200}X
 0: X
    abc\x{100}X 
 0: X
    abQX 
 0: X
    *** Failers
No match
    X  
No match

/(?<=[\x{100}\x{200}]{3})X/8
    abc\x{100}\x{200}\x{100}X
 0: X
    *** Failers
No match
    abc\x{200}X
No match
    X  
No match

/[^\x{100}\x{200}]X/8
    AX
 0: AX
    \x{150}X
 0: \x{150}X
    \x{500}X 
 0: \x{500}X
    *** Failers
No match
    \x{100}X
No match
    \x{200}X   
No match

/[^Q\x{100}\x{200}]X/8
    AX
 0: AX
    \x{150}X
 0: \x{150}X
    \x{500}X 
 0: \x{500}X
    *** Failers
No match
    \x{100}X
No match
    \x{200}X   
No match
    QX 
No match

/[^\x{100}-\x{200}]X/8
    AX
 0: AX
    \x{500}X 
 0: \x{500}X
    *** Failers
No match
    \x{100}X
No match
    \x{150}X
No match
    \x{200}X   
No match

/[z-\x{100}]/8i
    z
 0: z
    Z 
 0: Z
    \x{100}
 0: \x{100}
    *** Failers
No match
    \x{102}
No match
    y    
No match

/[\xFF]/
    >\xff<
 0: \xff

/[\xff]/8
    >\x{ff}<
 0: \x{ff}

/[^\xFF]/
    XYZ
 0: X

/[^\xff]/8
    XYZ
 0: X
    \x{123} 
 0: \x{123}

/^[ac]*b/8
  xb
No match

/^[ac\x{100}]*b/8
  xb
No match

/^[^x]*b/8i
  xb
No match

/^[^x]*b/8
  xb
No match
  
/^\d*b/8
  xb 
No match

/^\x{85}$/8i
    \x{85}
 0: \x{85}

/^abc./mgx8<any>
    abc1 \x0aabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\x0aabc6 \x{0085}abc7 \x{2028}abc8 \x{2029}abc9 JUNK
 0: abc1
 0: abc2
 0: abc3
 0: abc4
 0: abc5
 0: abc6
 0: abc7
 0: abc8
 0: abc9

/abc.$/mgx8<any>
    abc1\x0a abc2\x0b abc3\x0c abc4\x0d abc5\x0d\x0a abc6\x{0085} abc7\x{2028} abc8\x{2029} abc9
 0: abc1
 0: abc2
 0: abc3
 0: abc4
 0: abc5
 0: abc6
 0: abc7
 0: abc8
 0: abc9

/^a\Rb/8<bsr_unicode>
    a\nb
 0: a\x{0a}b
    a\rb
 0: a\x{0d}b
    a\r\nb
 0: a\x{0d}\x{0a}b
    a\x0bb
 0: a\x{0b}b
    a\x0cb
 0: a\x{0c}b
    a\x{85}b   
 0: a\x{85}b
    a\x{2028}b 
 0: a\x{2028}b
    a\x{2029}b 
 0: a\x{2029}b
    ** Failers
No match
    a\n\rb    
No match

/^a\R*b/8<bsr_unicode>
    ab
 0: ab
    a\nb
 0: a\x{0a}b
    a\rb
 0: a\x{0d}b
    a\r\nb
 0: a\x{0d}\x{0a}b
    a\x0bb
 0: a\x{0b}b
    a\x0c\x{2028}\x{2029}b
 0: a\x{0c}\x{2028}\x{2029}b
    a\x{85}b   
 0: a\x{85}b
    a\n\rb    
 0: a\x{0a}\x{0d}b
    a\n\r\x{85}\x0cb 
 0: a\x{0a}\x{0d}\x{85}\x{0c}b

/^a\R+b/8<bsr_unicode>
    a\nb
 0: a\x{0a}b
    a\rb
 0: a\x{0d}b
    a\r\nb
 0: a\x{0d}\x{0a}b
    a\x0bb
 0: a\x{0b}b
    a\x0c\x{2028}\x{2029}b
 0: a\x{0c}\x{2028}\x{2029}b
    a\x{85}b   
 0: a\x{85}b
    a\n\rb    
 0: a\x{0a}\x{0d}b
    a\n\r\x{85}\x0cb 
 0: a\x{0a}\x{0d}\x{85}\x{0c}b
    ** Failers
No match
    ab  
No match

/^a\R{1,3}b/8<bsr_unicode>
    a\nb
 0: a\x{0a}b
    a\n\rb
 0: a\x{0a}\x{0d}b
    a\n\r\x{85}b
 0: a\x{0a}\x{0d}\x{85}b
    a\r\n\r\nb 
 0: a\x{0d}\x{0a}\x{0d}\x{0a}b
    a\r\n\r\n\r\nb 
 0: a\x{0d}\x{0a}\x{0d}\x{0a}\x{0d}\x{0a}b
    a\n\r\n\rb
 0: a\x{0a}\x{0d}\x{0a}\x{0d}b
    a\n\n\r\nb 
 0: a\x{0a}\x{0a}\x{0d}\x{0a}b
    ** Failers
No match
    a\n\n\n\rb
No match
    a\r
No match

/\h+\V?\v{3,4}/8 
    \x09\x20\x{a0}X\x0a\x0b\x0c\x0d\x0a
 0: \x{09} \x{a0}X\x{0a}\x{0b}\x{0c}\x{0d}

/\V?\v{3,4}/8 
    \x20\x{a0}X\x0a\x0b\x0c\x0d\x0a
 0: X\x{0a}\x{0b}\x{0c}\x{0d}

/\h+\V?\v{3,4}/8
    >\x09\x20\x{a0}X\x0a\x0a\x0a<
 0: \x{09} \x{a0}X\x{0a}\x{0a}\x{0a}

/\V?\v{3,4}/8
    >\x09\x20\x{a0}X\x0a\x0a\x0a<
 0: X\x{0a}\x{0a}\x{0a}

/\H\h\V\v/8
    X X\x0a
 0: X X\x{0a}
    X\x09X\x0b
 0: X\x{09}X\x{0b}
    ** Failers
No match
    \x{a0} X\x0a   
No match
    
/\H*\h+\V?\v{3,4}/8 
    \x09\x20\x{a0}X\x0a\x0b\x0c\x0d\x0a
 0: \x{09} \x{a0}X\x{0a}\x{0b}\x{0c}\x{0d}
    \x09\x20\x{a0}\x0a\x0b\x0c\x0d\x0a
 0: \x{09} \x{a0}\x{0a}\x{0b}\x{0c}\x{0d}
    \x09\x20\x{a0}\x0a\x0b\x0c
 0: \x{09} \x{a0}\x{0a}\x{0b}\x{0c}
    ** Failers 
No match
    \x09\x20\x{a0}\x0a\x0b
No match
     
/\H\h\V\v/8
    \x{3001}\x{3000}\x{2030}\x{2028}
 0: \x{3001}\x{3000}\x{2030}\x{2028}
    X\x{180e}X\x{85}
 0: X\x{180e}X\x{85}
    ** Failers
No match
    \x{2009} X\x0a   
No match
    
/\H*\h+\V?\v{3,4}/8 
    \x{1680}\x{180e}\x{2007}X\x{2028}\x{2029}\x0c\x0d\x0a
 0: \x{1680}\x{180e}\x{2007}X\x{2028}\x{2029}\x{0c}\x{0d}
    \x09\x{205f}\x{a0}\x0a\x{2029}\x0c\x{2028}\x0a
 0: \x{09}\x{205f}\x{a0}\x{0a}\x{2029}\x{0c}\x{2028}
    \x09\x20\x{202f}\x0a\x0b\x0c
 0: \x{09} \x{202f}\x{0a}\x{0b}\x{0c}
    ** Failers 
No match
    \x09\x{200a}\x{a0}\x{2028}\x0b
No match
     
/a\Rb/I8<bsr_anycrlf>
Capturing subpattern count = 0
Options: bsr_anycrlf utf8
First char = 'a'
Need char = 'b'
    a\rb
 0: a\x{0d}b
    a\nb
 0: a\x{0a}b
    a\r\nb
 0: a\x{0d}\x{0a}b
    ** Failers
No match
    a\x{85}b
No match
    a\x0bb     
No match

/a\Rb/I8<bsr_unicode>
Capturing subpattern count = 0
Options: bsr_unicode utf8
First char = 'a'
Need char = 'b'
    a\rb
 0: a\x{0d}b
    a\nb
 0: a\x{0a}b
    a\r\nb
 0: a\x{0d}\x{0a}b
    a\x{85}b
 0: a\x{85}b
    a\x0bb     
 0: a\x{0b}b
    ** Failers 
No match
    a\x{85}b\<bsr_anycrlf>
No match
    a\x0bb\<bsr_anycrlf>
No match
    
/a\R?b/I8<bsr_anycrlf>
Capturing subpattern count = 0
Options: bsr_anycrlf utf8
First char = 'a'
Need char = 'b'
    a\rb
 0: a\x{0d}b
    a\nb
 0: a\x{0a}b
    a\r\nb
 0: a\x{0d}\x{0a}b
    ** Failers
No match
    a\x{85}b
No match
    a\x0bb     
No match

/a\R?b/I8<bsr_unicode>
Capturing subpattern count = 0
Options: bsr_unicode utf8
First char = 'a'
Need char = 'b'
    a\rb
 0: a\x{0d}b
    a\nb
 0: a\x{0a}b
    a\r\nb
 0: a\x{0d}\x{0a}b
    a\x{85}b
 0: a\x{85}b
    a\x0bb     
 0: a\x{0b}b
    ** Failers 
No match
    a\x{85}b\<bsr_anycrlf>
No match
    a\x0bb\<bsr_anycrlf>
No match
 
/ End of testinput 8 /