#!/bin/bash
#
# Syntax:  dvi2ps [-s] [-l] [-h] [-d dir1:dir2:...] filename [...]
#
# Purpose: Transforms .dvi files into .ps files using dvips.
#          Use the -s flag to reduce the intermediate output.
#          Use the -l flag to select letter paper.
#          Use the -d flag to specify extra directories to be added to
#          TEXINPUTS.
#          The -h flag shows the help info for this command.
#
# See also: dvips

# Created: Feb 17, 1993       by Bart De Schutter
# Last revised: Mar 22, 2012  by Bart De Schutter
#
# See http://www.deschutter.info/util/scripts.html for the latest version of
# this script.

# Status: public
# Category: postscript, latex

extra_option=""
extra_dirs=""
while getopts :lshd: option
do
   case "$option" in
      l) extra_option="$extra_option -t letter";;
      s) extra_option="$extra_option -q";;
      h) sed '/^$/q;/^#!/d;s/^# //;s/^#//' $0 >&2
         exit 1;;
      d) extra_dirs=${OPTARG};;
     \?) echo >&2
         echo >&2 "Unknown option: $OPTARG"
         echo >&2
         sed '/^$/q;/^#!/d;s/^# //;s/^#//' $0 >&2
         exit 1;;
   esac
done
shift $(($OPTIND-1))

if [ -n "${extra_dirs}" ]
then
   TEXINPUTS="$TEXINPUTS${extra_dirs}:"
fi

if [ $# -eq 0 ];
then 
   echo >&2
   echo >&2 "ERROR: ${0##*/} requires at least 1 input argument."
   echo >&2
   sed '/^$/q;/^#!/d;s/^# //;s/^#//' $0 >&2
   exit 1
fi
for fname in "$@"
do
   \dvips $extra_option -o "${fname%.dvi}.ps" "${fname%.dvi}.dvi"
done