PREUN

/bin/sh

if [ $1 -eq 0 ]; then
  if [ -f /usr/share/info/nano.info.gz ]; then
    /sbin/install-info --delete /usr/share/info/nano.info.gz /usr/share/info/dir
  fi
fi
exit 0

POSTIN

/bin/sh

if [ -f /usr/share/info/nano.info.gz ]; then
  /sbin/install-info /usr/share/info/nano.info.gz /usr/share/info/dir
fi
exit 0