From: [email-masked]
Date: Wed, 18 May 1994 14:03:45 -0400

the trick here is knowing about +#0 and -#0, which go to the
end of the address.  (-0 and +0 go to the end of the line).

,x/[a-zA-Z0-9]+/ -#0,+#1 | tr a-z A-Z