#! /bin/sh

# $NetBSD$

# Copyright (c) 2011 Alistair Crooks <agc@NetBSD.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

# dirs
mandir=/usr/share

# programs
apropos=/usr/bin/apropos
htmlviewer=/usr/pkg/bin/lynx
manviewer=/usr/bin/man

section=""
while [ $# -gt 0 ]; do
	# see if we have a section
	case "$1" in
	[0-9])	section=$1; shift ;;
	-s)	section=$2; shift 2 ;;
	-k)	exec ${apropos} $2 ;;
	*)	;;
	esac

	# now find the manpage itself
	manpage=""
	case "${section}" in
	"")	for section in 1 8 6 2 3 4 5 7 3f 9; do
			m=${mandir}/man/html${section}/${1}.html
			if [ -e ${m} ]; then
				manpage=${m}
				break
			fi
		done
		;;
	*)	manpage=${mandir}/man/html${section}/${1}.html
		;;
	esac

	# and display what we've found
	case "${manpage}" in
	"")	echo "No $1 html manual page found" >&2
		exec ${manviewer} $1
		;;
	*)	if [ -e ${manpage} ]; then
			${htmlviewer} ${manpage}
		fi
		;;
	esac
	shift
done

exit 0