minixmlto.sh

#!/bin/sh
#-
# Copyright (c) 2016 Baptiste Daroussin <bapt@FreeBSD.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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
#
#

docbookpath="@DOCBOOK_XSL@"

err() {
	ec=$1
	shift
	echo $@ >&2
	exit $ec
}

set -e
usage() {
	echo "Usage: $0 [--stringparam=param] <format> <file>" >&2
	exit 1
}

output=""
xslt=$(command -v xsltproc)
r=1
for arg in "$@"; do
	if [ -n "$r" ]; then
		unset r
		set --
	fi
	case "$arg" in
		--stringparam) set -- "$@" -P ;;
		*) set -- "$@" "$arg" ;;
	esac
done

while getopts "o:P:" option; do
	case "$option" in
	'o')
		output="> ${OPTARG}"
		;;
	'P')
		xslargs="--stringparam ${OPTARG%=*} ${OPTARG#*=}"
		;;
	*)
		err 1 "Unsupported option ${option}"
		;;
	esac
done
shift $((OPTIND-1))

[ $# -ne 2 ] && usage

case $1 in
man)
	xslpath=${docbookpath}/manpages/docbook.xsl
	opts=""
	if [ -n "${PREFER_DOCBOOK2MDOC}" ]; then
		if [ -z "${output}" ]; then
			outfile=$(basename ${2%.*})
			case "$outfile" in
			*.[0-9]) opts="-s ${outfile#*.}" ;;
			*) outfile="${outfile}.1" ;;
			esac
			output="> ${outfile}"
		fi
	fi
	cmd="docbook2mdoc ${opts} ${2}"
	;;
html-nochunks)
	xslpath=${docbookpath}/html/docbook.xsl
	xslargs="${xslargs} -o $(basename ${2%.*}.html)"
	;;
html|html-dir)
	xslpath=${docbookpath}/html/chunk.xsl
	;;
txt)
	xslpath=${docbookpath}/html/docbook.xsl
	post_args="| sed -e 's/&#8212;/-/g' | html2text -nobs -style pretty -o $(basename ${2%.*}.txt)"
	cmd="docbook2mdoc ${2} | mandoc -T utf8 > $(basename ${2%.*}.txt)"
	;;
*)
	err 1 "Unsupported format"
	;;
esac

if [ -n "${PREFER_DOCBOOK2MDOC}" -a -n "${cmd}" ]; then
	eval ${cmd} ${output}
else
	eval ${xslt} ${xslargs} ${xslpath} ${2} ${post_args} ${output}
fi