Another way: 
my $new = '';
for (;;) {                       # or: for ($orig)
   if (/\G(.*?)(this)/sgc) {
       say "Matched $2 at $-[2]";
       $new .= $1 . 'that';
       redo;
   } else {
       /\G(.*)/sgc;
       $new .= substr($_, pos);
       last;
   }
}

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In reply to Re: Loop through global substitution by ikegami
in thread Loop through global substitution by alafarm

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