#!/usr/local/bin/bash
#
# Copyright (C) 1995, Mats Kindahl. All rights reserved.
# This program is in the public domain, you can redistribute
# it and/or modify it as long as this copyright notice is
# kept.
#
# This software is delivered as-is. There is NO WARRANTY, neither
# implicit nor explicit, for this code.
#
# E-mail: matkin@docs.uu.se
#
# This is a small shellscript that I use to transform a DVI-file into
# a postscript booklet and print it on the printer.
#
# The program accepts
#
#    -Pprinter	Print booklet on printer. If printer is `-', print on
#            	standard output.
#

PATH=/usr/bin/:/usr/ucb:/usr/sup/tex/bin:/usr/hacks/bin

trap Cleanup EXIT	# Cleanup on exit

# Cleanup
#    Cleanup after script (remove created files).
Cleanup () { rm -f /tmp/booklet$$.ps }

# Usage
#    Print usage and exit script
Usage () {
    echo "Usage: ${0##*/} [ -Pprinter ] infile" 1>&2
    return 1
}

# print <DVI-file>
#    Print DVI-file in booklet style (two pages per page, booklet
#    sorted).
print () {
    dvips $1 -o | psbook | psnup -pa4 -2 >/tmp/booklet$$.ps
    if [ "$PRINTER" = "-" ]
    then
    	cat /tmp/booklet$$.ps
    else
        lpr /tmp/booklet$$.ps
    fi
}

# Process switches (getopts does not work the way I want).
while [ -n "$1" ]
do
    case "$1" in
    -P*) PRINTER=${1#-P}
	 ;;
    --)  break
         ;;
    -*)  Usage
         ;;
    *)   break
         ;;
    esac
    shift
done

[ -z "$1" ] && Usage
print $1