#!/usr/bin/sh
#
# dehtmldiff - fix up HTMLified diff
# Copyright (C) 2003 Tim Waugh <twaugh@redhat.com>

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

version() {
  echo "dehtmldiff - patchutils version 0.4.2"
}

usage() {
  echo "usage: dehtmldiff [FILES...]"
}

while [ "$#" -gt 0 ]
do
  case "$1" in
  --help)
	usage
	exit 0
	;;
  --version)
	version
	exit 0
	;;
  --)
	shift
	break
	;;

  *)
	break
	;;
  esac
done

sed -e '
s/<[^>]*>//g
s/&gt;/>/g
s/&lt;/</g
s/&quot;/"/g
' -- "$@" | awk \
'/\&[^a].*;/ || /\&a[^m].*;/ || /\&am[^p].*;/ {
  print "dehtmldiff: unknown entity at line " FNR ":" > "/dev/stderr";
  print > "/dev/stderr";
  exit 1 }
{ print }' | \
  sed -e 's/&amp;/\&/g' | unwrapdiff