Sure there is!

A lowercase "--" is "__" and a lowercase ";" is ",".

</tongue-in-cheek>

s''(q.S:$/9=(T1';s;(..)(..);$..=substr+crypt($1,$2),2,3;eg;print$..$/

In reply to Re^4: Making a regex case insensitive by liverpole
in thread Making a regex case insensitive by Win

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