case "$1" in
stylesheet)
  if [ "$VERBOSE" -ge 1 ]
  then
    echo >&2 "Convert to htmlhelp"
  fi
  echo "http://docbook.sourceforge.net/release/xsl/current/htmlhelp/htmlhelp.xsl"
  ;;
post-process)
  cp -- * "$OUTPUT_DIR"
  ;;
esac