#!/bin/sh
hxtoh()
{
flag=1
while read str; do
case $str in
HXCOMM*)
;;
STEXI*|ETEXI*) flag=$(($flag^1))
*)
test $flag -eq 1 && echo $str
esac
done
}
hxtotexi()
flag=0
case "$str" in
DEFHEADING*)
echo $(expr "$str" : "DEFHEADING(\(.*\))")
case "$1" in
"-h") hxtoh ;;
"-t") hxtotexi ;;
*) exit 1 ;;
exit 0