#compdef pack unpack pcat=unpack
local expl state line
case $service in
pack)
_arguments -C \
'-f[force packing even for files which will not benefit]' \
'-[show statistics for files]' \
'*:file to compress:_files -g "^*.z(-.)"'
;;
unpack)
_description files expl 'compressed file'
_files "$expl[@]" -g '*.z(-.)'
;;
esac