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-3
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Aurel
Aurel
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PHP, 326 320 318318 315 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=x.$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)+1))?$d.$d:($g<2?"":(($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]!$e*32]))])&&$e?strtoupper($j):$j))):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement
// $i   current character in $h
// $j   temporary var for uppercasing

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
// input from argument
$a=x.$argv[1];

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)+1))?
          /* random number from 0 to 2 (if alphabetic) or 0 to 1 stored in $g */
            $d.$d: /* double char if $g = 0 */
            ($g<2?
                "": /* omit char if $g = 1*/
                (($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]!$e*32]))])&&$e?
                  /* $j = random neighbour of the current char */
                    strtoupper($j): /* uppercase $j */
                    $j)))
        :$d; /* keep char */

-2, -3 thanks to Ismael Miguel

PHP, 326 320 318 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=x.$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)+1))?$d.$d:($g<2?"":(($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?strtoupper($j):$j))):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement
// $i   current character in $h
// $j   temporary var for uppercasing

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
// input from argument
$a=x.$argv[1];

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)+1))?
          /* random number from 0 to 2 (if alphabetic) or 0 to 1 stored in $g */
            $d.$d: /* double char if $g = 0 */
            ($g<2?
                "": /* omit char if $g = 1*/
                (($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?
                  /* $j = random neighbour of the current char */
                    strtoupper($j): /* uppercase $j */
                    $j)))
        :$d; /* keep char */

-2 thanks to Ismael Miguel

PHP, 326 320 318 315 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=x.$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)+1))?$d.$d:($g<2?"":(($j=$i[rand(0,strlen($i=$h[$c-!$e*32]))])&&$e?strtoupper($j):$j))):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement
// $i   current character in $h
// $j   temporary var for uppercasing

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
// input from argument
$a=x.$argv[1];

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)+1))?
          /* random number from 0 to 2 (if alphabetic) or 0 to 1 stored in $g */
            $d.$d: /* double char if $g = 0 */
            ($g<2?
                "": /* omit char if $g = 1*/
                (($j=$i[rand(0,strlen($i=$h[$c-!$e*32]))])&&$e?
                  /* $j = random neighbour of the current char */
                    strtoupper($j): /* uppercase $j */
                    $j)))
        :$d; /* keep char */

-2, -3 thanks to Ismael Miguel

-2 chars
Source Link
Aurel
Aurel
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  • 10

PHP, 326 320320 318 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=x.$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)?2:1+1))?$d.$d:($g<2?"":(($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?strtoupper($j):$j))):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement
// $i   current character in $h
// $j   temporary var for uppercasing

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
// input from argument
$a=x.$argv[1];

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)?2:1+1))?
          /* random number from 0 to 2 (if alphabetic) or 0 to 1 stored in $g */
            $d.$d: /* double char if $g = 0 */
            ($g<2?
                "": /* omit char if $g = 1*/
                (($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?
                  /* $j = random neighbour of the current char */
                    strtoupper($j): /* uppercase $j */
                    $j)))
        :$d; /* keep char */

Still could be improved, I suppose.

-2 thanks to Ismael Miguel

PHP, 326 320 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=x.$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)?2:1))?$d.$d:($g<2?"":(($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?strtoupper($j):$j))):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement
// $i   current character in $h
// $j   temporary var for uppercasing

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
// input from argument
$a=x.$argv[1];

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)?2:1))?
          /* random number from 0 to 2 (if alphabetic) or 0 to 1 stored in $g */
            $d.$d: /* double char if $g = 0 */
            ($g<2?
                "": /* omit char if $g = 1*/
                (($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?
                  /* $j = random neighbour of the current char */
                    strtoupper($j): /* uppercase $j */
                    $j)))
        :$d; /* keep char */

Still could be improved, I suppose.

PHP, 326 320 318 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=x.$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)+1))?$d.$d:($g<2?"":(($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?strtoupper($j):$j))):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement
// $i   current character in $h
// $j   temporary var for uppercasing

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
// input from argument
$a=x.$argv[1];

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)+1))?
          /* random number from 0 to 2 (if alphabetic) or 0 to 1 stored in $g */
            $d.$d: /* double char if $g = 0 */
            ($g<2?
                "": /* omit char if $g = 1*/
                (($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?
                  /* $j = random neighbour of the current char */
                    strtoupper($j): /* uppercase $j */
                    $j)))
        :$d; /* keep char */

Still could be improved, I suppose.

-2 thanks to Ismael Miguel

shaved off some chars, new explanation
Source Link
Aurel
Aurel
  • 1.1k
  • 9
  • 10

PHP, 326326 320 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=$argv[1];for;$a=x.$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(!($g=rand(0,($e=($c>-1&&$c<26))||($c>31&&$c<58or$c>31&&$c<58)?(($g=rand(0,2:1))==0?$d.$d:($g==1$g<2?"":$h[$c-($e?0:32)][rand($j=$i[rand(0,strlen($h[$c$i=$h[$c-($e?0:32)]))])):(rand&&$e?strtoupper(0,1$j)?$d.$d:""$j))):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement
// $i   current character in $h
// $j   temporary var for uppercasing

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
$a=$argv[1]; // input from argument
$a=x.$argv[1];

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (!($g=rand(0,($e=($c>-1&&$c<26))||($c>31&&$c<58or$c>31&&$c<58)? /* is alphabetical2:1))? 
 + is uppercase in $e */
      /* random number from 0 to (($g=rand(0,2))==0? /*(if $galphabetic) =or 0 to 2,1 =stored 1/3in chance$g */
                $d.$d: /* double char */
if $g = 0 */
            ($g==1$g<2?
                    "": /* omit char */
 if $g = 1*/
                $h[$c-($e?0:32)][rand($j=$i[rand(0,strlen($h[$c$i=$h[$c-($e?0:32)]))])&&$e?
                        /* a$j = random characterneighbour fromof the character'scurrent neighbourschar */
            ):
            (randstrtoupper(0,1$j)?
      : /* uppercase $j */
       $d.$d: /* double char */
         $j)))
        "")):$d; /* omitkeep char */
        $d;

PHP, 326 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(($e=($c>-1&&$c<26))||($c>31&&$c<58)?(($g=rand(0,2))==0?$d.$d:($g==1?"":$h[$c-($e?0:32)][rand(0,strlen($h[$c-($e?0:32)]))])):(rand(0,1)?$d.$d:"")):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
$a=$argv[1]; // input from argument

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (($e=($c>-1&&$c<26))||($c>31&&$c<58)? /* is alphabetical? + is uppercase in $e */
            (($g=rand(0,2))==0? /* $g = 0 to 2, = 1/3 chance */
                $d.$d: /* double char */
                ($g==1?
                    "": /* omit char */
                    $h[$c-($e?0:32)][rand(0,strlen($h[$c-($e?0:32)]))])
                        /* a random character from the character's neighbours */
            ):
            (rand(0,1)?
                 $d.$d: /* double char */
                 "")): /* omit char */
        $d;

PHP, 326 320 chars

$h=array(qs,vhn,vxf,sefx,wrd,drgc,fthv,gyjb,uko,hukn,jilm,ok,nk,bjm,ilp,o,aw,etf,awdz,rgy,yji,cgb,qse,zdc,thu,sx);$a=x.$argv[1];for(;$d=$a[++$b];)echo!rand(0,9)&&($c=ord($d)-65)?(!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)?2:1))?$d.$d:($g<2?"":(($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?strtoupper($j):$j))):$d;

// $a   input
// $b   char iterator
// $c   current char ascii value
// $d   current char
// $e   is uppercase
// $g   rand() output
// $h   char displacement
// $i   current character in $h
// $j   temporary var for uppercasing

// the neighbouring characters of a-z, in alphabetical (and ASCII) order
$h=array(qs,vhn,vxf,sefx,wrd,
    drgc,fthv,gyjb,uko,hukn,
    jilm,ok,nk,bjm,ilp,
    o,aw,etf,awdz,rgy,
    yji,cgb,qse,zdc,thu,
    sx);
// input from argument
$a=x.$argv[1];

for(;$d=$a[++$b];)
    echo!rand(0,9)&&($c=ord($d)-65)? /* 10% chance, read char ASCII value - 65 into $c */
        (!($g=rand(0,($e=($c>-1&&$c<26)or$c>31&&$c<58)?2:1))? 
          /* random number from 0 to 2 (if alphabetic) or 0 to 1 stored in $g */
            $d.$d: /* double char if $g = 0 */
            ($g<2?
                "": /* omit char if $g = 1*/
                (($j=$i[rand(0,strlen($i=$h[$c-($e?0:32)]))])&&$e?
                  /* $j = random neighbour of the current char */
                    strtoupper($j): /* uppercase $j */
                    $j)))
        :$d; /* keep char */
commented version
Source Link
Aurel
Aurel
  • 1.1k
  • 9
  • 10
Source Link
Aurel
Aurel
  • 1.1k
  • 9
  • 10