#compdef gsbj gsdj gsdj500 gslj gslp gsnd ps2ascii ghostview mgv pstoedit pstotgif zathura

local expl ext

# ghostscript:
#  gs gsbj gsdj gsdj500 gslj gslp gsnd ps2ascii

if [[ "$1" == '-z' ]]; then
  ext='(|.gz|.Z)'
  shift
fi

_description files expl 'PostScript or PDF file'
_files "$@" "$expl[@]" -g "*.(#i)(pdf|ps|eps)$ext(-.)"