exit if $data =~ /q/i;
Okay, why is "q" illegal in input? It doesn't seem very dangerous to me! ;-) I think you have a problem with your regex but I think "big, bad, ugly" is overstating it. You probably just wanted something more like:
exit if $data =~ /^\s*q\s*$/i;
I couldn't get past this first part so you'll have to rely on the other replies for the rest of it. (:
(but my friends call me bad names when I act like this)
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