Select Code to Download

s/
   .
...
   (?<!JAZ(?=Z))
   (?<!JAZZ)
/a/xgs;

s/~/a/g;
s/JAZZ/~/g;
s/[^~]/a/g;
s/~/JAZZ/g;

s/(JAZZ|.)/$1 eq 'JAZZ' ? $1 : 'a'/egs;

s/(JAZZ)|./defined($1) ? $1 : 'a'/egs;

s/((?:JAZZ)*)./$1a/gs;