PREUN

/bin/sh

if [[ "$1" = "0" ]]; then
  perl -ni -e "/^HYPH\s*is\s*IS\s*hyph_is$/ or print" /usr/share/dict/ooo/dictionary.lst
fi

POSTIN

/bin/sh

if [[ ! -f "/usr/share/dict/ooo/dictionary.lst" ]] ||       ! grep -q "^HYPH[ \t]*is[ \t]*IS[ \t]*hyph_is" /usr/share/dict/ooo/dictionary.lst
then
  echo "HYPH is IS hyph_is" >> /usr/share/dict/ooo/dictionary.lst
fi