#!/bin/ksh93

# Copyright (C) 1994-2015  Werner Lemberg <wl@gnu.org>
# Portions Copyright (C) 2015 Jens Elkner (ksh93 port)
#
# 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 in doc/COPYING; if not, write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301 USA

typeset -r FPROG=${.sh.file}
typeset -r PROG=${FPROG##*/}
SDIR=${FPROG%/*}

# Usually the name of the converter + ${TEXCMD} is the name of this script.
# So we deduce:
[[ ${PROG: -8:8} == 'pdflatex' ]] && TEXCMD='pdflatex' || TEXCMD='latex'
X=${PROG:0:3}
[[ $X == 'gbk' || $X == 'bg5+' ]] && \
	CONV='extconv' || CONV="${PROG%${TEXCMD}}conv"
X=${ whence ${CONV} ; }
[[ -z $X ]] && print -u2 '${CONV} tool not found - exiting.' && exit 1

integer N=1
ARGV=

# get last argument
while (( $# > 1 )); do
	eval ARGV$N=\$1						# JEL: why eval here?, and again later?
	ARGV="${ARGV} \"\${ARGV}$N\""
	(( N++ ))
	shift
done

# replace extension with .cjk or append .cjk if there is no extension
TEX=$1
[[ -z ${TEX} || ${TEX: -4:4} == '.cjk' ]] && \
	print -u2 "Usage: ${PROG} [options] ${TEXCMD}-file" && exit 1

X="${TEX##*/}"
EXT="${X##*.}"
[[ -n ${.sh.match} ]] && AUX="${TEX%${EXT}}.cjk" || AUX="${TEX}.cjk"

${CONV} < "${TEX}" > "${AUX}" && eval ${TEXCMD} "${ARGV}" "\${AUX}"