V10/man/adm/preprocess

case $1 in
man1/ideal.1)	echo "ideal $1|eqn";;
man1/dag.1)	echo "dag $1|pic";;
man1/grap.1)	echo "grap $1|pic";;
man1/pic.1)	echo "pic $1";;
man6/eqnchar.6)	echo "eqn /usr/pub/eqnchar $1";;
*)		echo "eqn $1"
esac