#!/bin/sh
# @(#) zedit.sh 1.0 94/01/14
# 94/01/14 john h. dubois iii (john@armory.com)

VISUAL=${VISUAL:-$EDITOR}
VISUAL=${VISUAL:-vi}
# If a filename ending in .Z is given, strip off the .Z with expr.
# This way, a compressed filename can be given with or without the .Z
case "$1" in
*.Z)
    file=`expr "$1" : '\(.*\)\.Z$'`
    ;;
*)
    file=$1
    ;;
esac
# If the filename ended in .Z, OR the given filename does not exist and the
# given filename with .Z appended does, it's probably compressed.
# So, try uncompressing it.  If the uncompress succeeds (compress exits 0,
# and after running uncompress the file without .Z exists),
# edit the uncompressed file & then recompress it.
# If any of the conditions fails, just edit the file.
if [ "$1" != "$file" -o ! -f "$1" -a -f "$1.Z" ] && uncompress "$file.Z" &&
[ -f "$file" ]
then
    $VISUAL "$file"
    compress "$file"
else
    $VISUAL "$1"
fi