#!/bin/sh

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# pstex2eps version 3.1 : produce postscript files from pstex sources   #
# Copyright (C) 2000-2006 Glad Deschrijver, Mon Apr 22 2002,            #
# Tue Aug 12 2003, Tue Aug 21 2003, Fri Nov 24 2006                     #
# Can handle filenames containing spaces, if you encounter problems     #
# with other symbols in filenames, please contact me at                 #
# Glad.Deschrijver@UGent.be                                             #
#                                                                       #
# 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; if not, write to the Free Software           #
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, #
# USA.                                                                  #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #

# 3.1 : - check whether the temporary tex file created by the script
#         does not exist yet
#       - removed some small bugs
# 3.0 : added support for style files, changed the usage of the flags
#	--preview and --delete in order to allow changing the defaults
#	below
# 2.1 : enhancement of --help; output now to .eps instead of .ps
# 2.0 : complete rewrite of pstex2eps

# Change defaults below

preview=no		# Don't open output-image
previewcmd=gv		# Open output-image with this command
delete=yes		# Delete .pstex and .pstex_t created by xfig
typeset=latex		# Use this command to typeset LaTeX documents
stylefile=""		# default style file (empty string if using
			# pstex2eps default)
stylereplace="\$f"	# The regexp "\$f" in the style file will be
			# replaced by the filename (without extension)
tmpfile=pstex2epstmp	# Name used for temporary files (change only
			# when the file pstex2epstmp.tex already exists)

# Below this line you shouldn't change anything

progname=`echo "$0" | sed -e 's/[^\/]*\///g'`
version=3.1
copyright="Copyright (C) 2000-2003 Glad Deschrijver"
bq='`'
eq="'"
file=""
tmpfile2=$tmpfile.tex

usage()
{
  cat << EOF
Usage: $progname [OPTIONS] file[.pstex|.pstex_t]
Options: [defaults in brackets after descriptions]
Configuration:
  --preview=yes/no	preview using program defined by --previewcommand [$preview]
  -p			short for --preview=yes
  --previewcommand=CMD	use CMD to preview postscript files [$previewcmd]
  --style=FILE		use user-defined style file FILE instead of
			standard style
  --delete=yes/no	delete file.pstex and file.pstex_t [$delete]
  -h, --help		display this help and exit
  -v, --version		output version information and exit
EOF
}

parsefilename()
{
  if `test -z "$file"`
  then
    echo "$progname: At least one file name is required as an argument."
    echo "$progname: Try $bq-h$eq or $bq--help$eq for more information."
    exit 1
  else
    F=`echo $file | sed -e "s/\.[^\.]*$//"`
    ext=`echo $file | sed -e "s/.*\.//g"`
    if `test "$ext" = "pstex"` || `test "$ext" = "pstex_t"`
    then
      file=$F
    fi
    if `test ! -r "$file.pstex"` || `test ! -r "$file.pstex_t"`
    then
      echo "$progname: $file.pstex or $file.pstex_t not found or not readable."
      exit 1
    fi
  fi
  path=`echo $file | sed -e "s/[^\/]*$//g"`
  file=`echo $file | sed -e "s/.*\///g"`

  if `test ! "$path" = ""`
  then
    cd "$path"
  fi
}

createtexfile()
{
  if test -f "$tmpfile2"
  then
    echo "The file $tmpfile2 already exists.  Please rename or move this file to another directory."
    exit 1
  fi
  if test "$stylefile" = ""
  then
    echo "\documentclass{report}" > $tmpfile2
    echo "\usepackage{amssymb}" >> $tmpfile2
    echo "\usepackage{amsmath}" >> $tmpfile2
    echo "\usepackage{epsfig}" >> $tmpfile2
    echo "\usepackage{color}" >> $tmpfile2
    printf "\\" >> $tmpfile2
    echo "begin{document}" >> $tmpfile2
    echo "\pagestyle{empty}" >> $tmpfile2
    echo "\input{$file2.pstex_t}" >> $tmpfile2
    echo "\end{document}" >> $tmpfile2
  else
    cat $stylefile | sed -e "s/$stylereplace/$file2/g" > $tmpfile2
  fi
}

typesetfile()
{
  file2=`echo "$file" | sed -e "s/\ /_pstex2epstmp_/g"`
  if `test "$file" != "$file2"`
  then
    sed -e "s/$file\.pstex/$file2\.pstex/g" "$file.pstex" > $file2.pstex
    sed -e "s/$file\.pstex/$file2\.pstex/g" "$file.pstex_t" > $file2.pstex_t
  fi

  createtexfile

  $typeset $tmpfile2
  dvips -E $tmpfile.dvi -o $tmpfile.eps
  sed -e "s/$tmpfile\.dvi -o $tmpfile\.eps/\"$file\.dvi\" -o \"$file\.eps\"/g" \
    -e "s/$tmpfile\.dvi/$file\.dvi/g" $tmpfile.eps > "$file.eps"
#  cp "$file.eps" $tmpfile.eps
#  epstopdf $tmpfile.eps
#  mv $tmpfile.pdf "$file.pdf"

  rm $tmpfile.*
  if `test "$file" != "$file2"`
  then
    rm $file2.pstex
    rm $file2.pstex_t
  fi
}

deleteauxfiles()
{
  rm "$file.pstex" 2>/dev/null
  rm "$file.pstex_t" 2>/dev/null
}

while test x"$1" != x
do
  case $1 in
    -h|--help) usage; exit 0;;

    --preview=*)
      preview=`echo $1 | sed -e 's/--preview=//'`
      shift
      ;;

    -p)
      preview=yes
      shift
      ;;

    --previewcommand=*)
      tmp=`echo $1 | sed -e 's/--previewcommand=//'`
      if test $tmp; then previewcmd=$tmp; fi
      shift
      ;;

    --style=*)
      tmp=`echo $1 | sed -e 's/--style=//'`
      if test $tmp; then stylefile=$tmp; fi
      shift
      ;;

    --delete=*)
      delete=`echo $1 | sed -e 's/--delete=//'`
      shift
      ;;

    -v|--version)
      echo "$progname $version"
      echo "$copyright"
      echo "This program comes with ABSOLUTELY NO WARRANTY.  This is free"
      echo "software, and you are welcome to redistribute it under"
      echo "the terms of the GNU General Public License."
      exit 0
      ;;

    -*) usage; exit 1;;
    *) file=$1; shift;;
  esac
done

parsefilename
typesetfile

if `test "$preview" = "yes"`
then
  $previewcmd "$file.eps" &
fi

if `test "$delete" = "yes"`
then
  deleteauxfiles
fi
exit 0