PCRE version 5.0 13-Sep-2004

/-- 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

/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(.{3})b/8
    a\x{4000}xyb 
 0: a\x{4000}xyb
 1: \x{4000}xy
    a\x{4000}\x7fyb 
 0: a\x{4000}\x{7f}yb
 1: \x{4000}\x{7f}y
    a\x{4000}\x{100}yb 
 0: a\x{4000}\x{100}yb
 1: \x{4000}\x{100}y
    *** Failers
No match
    a\x{4000}b 
No match
    ac\ncb 
No match

/a(.*?)(.)/
    a\xc0\x88b
 0: a\xc0
 1: 
 2: \xc0

/a(.*?)(.)/8
    a\x{100}b
 0: a\x{100}
 1: 
 2: \x{100}

/a(.*)(.)/
    a\xc0\x88b
 0: a\xc0\x88b
 1: \xc0\x88
 2: b

/a(.*)(.)/8
    a\x{100}b
 0: a\x{100}b
 1: \x{100}
 2: b

/a(.)(.)/
    a\xc0\x92bcd
 0: a\xc0\x92
 1: \xc0
 2: \x92

/a(.)(.)/8
    a\x{240}bcd
 0: a\x{240}b
 1: \x{240}
 2: b

/a(.?)(.)/
    a\xc0\x92bcd
 0: a\xc0\x92
 1: \xc0
 2: \x92

/a(.?)(.)/8
    a\x{240}bcd
 0: a\x{240}b
 1: \x{240}
 2: b

/a(.??)(.)/
    a\xc0\x92bcd
 0: a\xc0
 1: 
 2: \xc0

/a(.??)(.)/8
    a\x{240}bcd
 0: a\x{240}
 1: 
 2: \x{240}

/a(.{3})b/8
    a\x{1234}xyb 
 0: a\x{1234}xyb
 1: \x{1234}xy
    a\x{1234}\x{4321}yb 
 0: a\x{1234}\x{4321}yb
 1: \x{1234}\x{4321}y
    a\x{1234}\x{4321}\x{3412}b 
 0: a\x{1234}\x{4321}\x{3412}b
 1: \x{1234}\x{4321}\x{3412}
    *** Failers
No match
    a\x{1234}b 
No match
    ac\ncb 
No match

/a(.{3,})b/8
    a\x{1234}xyb 
 0: a\x{1234}xyb
 1: \x{1234}xy
    a\x{1234}\x{4321}yb 
 0: a\x{1234}\x{4321}yb
 1: \x{1234}\x{4321}y
    a\x{1234}\x{4321}\x{3412}b 
 0: a\x{1234}\x{4321}\x{3412}b
 1: \x{1234}\x{4321}\x{3412}
    axxxxbcdefghijb 
 0: axxxxbcdefghijb
 1: xxxxbcdefghij
    a\x{1234}\x{4321}\x{3412}\x{3421}b 
 0: a\x{1234}\x{4321}\x{3412}\x{3421}b
 1: \x{1234}\x{4321}\x{3412}\x{3421}
    *** Failers
No match
    a\x{1234}b 
No match

/a(.{3,}?)b/8
    a\x{1234}xyb 
 0: a\x{1234}xyb
 1: \x{1234}xy
    a\x{1234}\x{4321}yb 
 0: a\x{1234}\x{4321}yb
 1: \x{1234}\x{4321}y
    a\x{1234}\x{4321}\x{3412}b 
 0: a\x{1234}\x{4321}\x{3412}b
 1: \x{1234}\x{4321}\x{3412}
    axxxxbcdefghijb 
 0: axxxxb
 1: xxxx
    a\x{1234}\x{4321}\x{3412}\x{3421}b 
 0: a\x{1234}\x{4321}\x{3412}\x{3421}b
 1: \x{1234}\x{4321}\x{3412}\x{3421}
    *** Failers
No match
    a\x{1234}b 
No match

/a(.{3,5})b/8
    a\x{1234}xyb 
 0: a\x{1234}xyb
 1: \x{1234}xy
    a\x{1234}\x{4321}yb 
 0: a\x{1234}\x{4321}yb
 1: \x{1234}\x{4321}y
    a\x{1234}\x{4321}\x{3412}b 
 0: a\x{1234}\x{4321}\x{3412}b
 1: \x{1234}\x{4321}\x{3412}
    axxxxbcdefghijb 
 0: axxxxb
 1: xxxx
    a\x{1234}\x{4321}\x{3412}\x{3421}b 
 0: a\x{1234}\x{4321}\x{3412}\x{3421}b
 1: \x{1234}\x{4321}\x{3412}\x{3421}
    axbxxbcdefghijb 
 0: axbxxb
 1: xbxx
    axxxxxbcdefghijb 
 0: axxxxxb
 1: xxxxx
    *** Failers
No match
    a\x{1234}b 
No match
    axxxxxxbcdefghijb 
No match

/a(.{3,5}?)b/8
    a\x{1234}xyb 
 0: a\x{1234}xyb
 1: \x{1234}xy
    a\x{1234}\x{4321}yb 
 0: a\x{1234}\x{4321}yb
 1: \x{1234}\x{4321}y
    a\x{1234}\x{4321}\x{3412}b 
 0: a\x{1234}\x{4321}\x{3412}b
 1: \x{1234}\x{4321}\x{3412}
    axxxxbcdefghijb 
 0: axxxxb
 1: xxxx
    a\x{1234}\x{4321}\x{3412}\x{3421}b 
 0: a\x{1234}\x{4321}\x{3412}\x{3421}b
 1: \x{1234}\x{4321}\x{3412}\x{3421}
    axbxxbcdefghijb 
 0: axbxxb
 1: xbxx
    axxxxxbcdefghijb 
 0: axxxxxb
 1: xxxxx
    *** Failers
No match
    a\x{1234}b 
No match
    axxxxxxbcdefghijb 
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

/(?<=(.))X/8
    WXYZ
 0: X
 1: W
    \x{256}XYZ 
 0: X
 1: \x{256}
    *** Failers
No match
    XYZ 
No match

/X(\C{3})/8
    X\x{1234}
 0: X\x{1234}
 1: \x{1234}

/X(\C{4})/8
    X\x{1234}YZ
 0: X\x{1234}Y
 1: \x{1234}Y
    
/X\C*/8
    XYZabcdce
 0: XYZabcdce
    
/X\C*?/8
    XYZabcde
 0: X
    
/X\C{3,5}/8
    Xabcdefg   
 0: Xabcde
    X\x{1234} 
 0: X\x{1234}
    X\x{1234}YZ
 0: X\x{1234}YZ
    X\x{1234}\x{512}  
 0: X\x{1234}\x{512}
    X\x{1234}\x{512}YZ
 0: X\x{1234}\x{512}

/X\C{3,5}?/8
    Xabcdefg   
 0: Xabc
    X\x{1234} 
 0: X\x{1234}
    X\x{1234}YZ
 0: X\x{1234}
    X\x{1234}\x{512}  
 0: X\x{1234}

/[^a]+/8g
    bcd
 0: bcd
    \x{100}aY\x{256}Z 
 0: \x{100}
 0: Y\x{256}Z
    
/^[^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]+/8ig
    bcd
 0: bcd
    \x{100}aY\x{256}Z 
 0: \x{100}
 0: Y\x{256}Z
    
/^[^a]{2}/8i
    \x{100}bc
 0: \x{100}b
 
/^[^a]{2,}/8i
    \x{100}bcAa
 0: \x{100}bc

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

/\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
 0+ zzz

/\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{2,3}/8
    12abcd34
 0: abc
    12ab34
 0: ab
    *** Failers  
 0: ***
    1234
No match
    12a34  
No match

/\D{2,3}?/8
    12abcd34
 0: ab
    12ab34
 0: ab
    *** Failers  
 0: **
    1234
No match
    12a34  
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

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

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

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

/\S{2,3}?/8
    12abcd34
 0: 12
    1234abcd
 0: 12
    *** Failers
 0: **
    \     \  
No match

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

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

/>\s{2,3}?</8+
    ab>  <cd
 0: >  <
 0+ cd
    ab>   <ce
 0: >   <
 0+ ce
    *** 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{2,3}?/8
    ab  cd
 0: ab
    abcd ce
 0: ab
    *** Failers
 0: Fa
    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}?/8
    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}?/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}
   *** 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}?/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}
   *** 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

/a\Cb/
    aXb
 0: aXb
    a\nb
 0: a\x0ab
  
/a\Cb/8
    aXb
 0: aXb
    a\nb
 0: a\x{0a}b
    *** Failers 
No match
    a\x{100}b 
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

/(|a)/g8
    catac
 0: 
 1: 
 0: 
 1: 
 0: a
 1: a
 0: 
 1: 
 0: 
 1: 
 0: a
 1: a
 0: 
 1: 
 0: 
 1: 
    a\x{256}a 
 0: 
 1: 
 0: a
 1: a
 0: 
 1: 
 0: 
 1: 
 0: a
 1: a
 0: 
 1: 

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

/ End of testinput4 /