<b_jonas> learn ayacc is ais523\'s yacc parser generator implementation, get it from (darcs clone http://nethack4.org/projects/ayacc) or a snapshot from "http://nethack4.org/pastebin/ayacc-2020-04.tar.gz".

#!/usr/bin/perl -CSDA
$_ = (join " ", @ARGV) || `words`; s/^\s+|\s+$//g; print "Thanks, $_. "; if (/[aeiouyAEIOUY0134]/) { s/^[^aeiouyAEIOUY0134]*/Th/; } else { s/^./T/; } print "$_.";