bin/tex2im

   1 #!/bin/bash
   2 #############################################################
   3 # TEX2IM:   Converts LaTeX formulas to pixel graphics which #
   4 #           can be easily included in Text-Processors like  #
   5 #           M$ or Staroffice.                               #
   6 #                                                           #
   7 # Required software: latex, convert (image magic)           #
   8 # to get color, the latex color package is required         #
   9 #############################################################
  10 # Version 1.8  (http://www.nought.de/tex2im.html)           #
  11 # published under the GNU public licence (GPL)              #
  12 # (c) 14. May 2004 by Andreas Reigber                   #
  13 # Email: anderl@nought.de                                   #
  14 #############################################################
  15
  16 #
  17 # Default values
  18 #
  19
  20 resolution="150x150"
  21 format="png"
  22 color1="white"
  23 color2="black"
  24 trans=0
  25 noformula=0
  26 aa=1
  27 extra_header="$HOME/.tex2im_header"
  28
  29 if [ -f ~/.tex2imrc ]; then
  30         source ~/.tex2imrc
  31 fi
  32
  33 OPTERR=0
  34
  35 if [ $# -lt 1 ]; then
  36         echo "Usage: `basename $0` [options] file.tex, for help give option -h" 1>&2
  37         exit 1
  38 fi
  39
  40 while getopts hanzb:t:f:o:r:vx: Optionen; do
  41         case $Optionen in
  42                 h) echo "tex2im [options] inputfile
  43
  44 The content of input file should be _plain_ latex mathmode code!
  45 Alternatively, a string containing the latex code can be specified.
  46
  47 Options:
  48 -v         show version
  49 -h         show help
  50 -a         change status of antialiasing
  51            default is on for normal mode and
  52                           off for transparent mode
  53 -o file    specifies output filename,
  54            default is inputfile with new extension
  55 -f expr    specifies output format,
  56            possible examples: gif, jpg, tif......
  57            all formates supported by "convert" should work,
  58            default: png
  59 -r expr    specifies desired resolution in dpi,
  60            possible examples: 100x100, 300x300, 200x150,
  61            default is 150x150
  62 -b expr    specifies the background color
  63            default: white
  64 -t expr    specifies the text color
  65            default: black
  66 -n         no-formula mode (do not wrap in eqnarray* environment)
  67            default: off
  68 -z         transparent background
  69            default: off
  70 -x file    file containing extra header lines.
  71            default: ~/.tex2im_header"
  72                         exit 0 ;;
  73                 v) echo "TEX2IM Version 1.8"
  74                         exit 0 ;;
  75                 r) resolution=$OPTARG;;
  76                 o) outfile=$OPTARG;;
  77                 z) trans=1
  78                    aa=0;;
  79                 a) if [ $aa -eq 0 ]; then
  80                                 aa=1
  81                         else
  82                                 aa=0
  83                         fi;;
  84                 n) noformula=1;;
  85                 b) color1=$OPTARG;;
  86                 t) color2=$OPTARG;;
  87                 f) format=$OPTARG;;
  88       x) extra_header=$OPTARG;;
  89         esac
  90 done
  91
  92 #
  93 # Generate temporary directory
  94 #
  95
  96 if test -n "`type -p mktemp`" ; then
  97         tmpdir="`mktemp /tmp/tex2imXXXXXX`"
  98         rm $tmpdir
  99         mkdir $tmpdir
 100 else
 101         tmpdir=/tmp/tex2im$$
 102         if [ -e $tmpdir ] ; then
 103                 echo "$0: Temporary directory $tmpdir already exists." 1>&2
 104                 exit 1
 105         fi
 106         mkdir $tmpdir
 107 fi
 108 homedir="`pwd`" || exit 1
 109
 110 #
 111 # Names for input and output files
 112 #
 113
 114 while [ $OPTIND -le $# ]
 115 do
 116
 117 eval infile=\$${OPTIND}
 118
 119 if [ -z $outfile ]; then
 120         if [ -e "$infile" ]; then
 121                 base=`basename ${infile} .tex` ;
 122                 outfile=${base}.$format
 123         else
 124                 outfile=out.$format
 125         fi
 126 fi
 127
 128 #
 129 # Here we go
 130 #
 131
 132 (
 133 cat << ENDHEADER1
 134 \documentclass[12pt]{article}
 135 \usepackage{color}
 136 \usepackage[dvips]{graphicx}
 137 \pagestyle{empty}
 138 ENDHEADER1
 139 ) > $tmpdir/out.tex
 140
 141 #
 142 # Do we have a file containing extra files to include into the header?
 143 #
 144
 145 if [ -f $extra_header ]; then
 146         (
 147         cat $extra_header
 148         ) >> $tmpdir/out.tex
 149 fi
 150
 151 if [ $noformula -eq 1 ]; then
 152 (
 153 cat << ENDHEADER2
 154 \pagecolor{$color1}
 155 \begin{document}
 156 {\color{$color2}
 157 ENDHEADER2
 158 ) >> $tmpdir/out.tex
 159 else
 160 (
 161 cat << ENDHEADER2
 162 \pagecolor{$color1}
 163 \begin{document}
 164 {\color{$color2}
 165 \begin{eqnarray*}
 166 ENDHEADER2
 167 ) >> $tmpdir/out.tex
 168 fi
 169
 170 if [ -e "$infile" ]; then
 171         cat $infile >> $tmpdir/out.tex
 172 else
 173         echo $infile >> $tmpdir/out.tex
 174 fi
 175
 176 if [ $noformula -eq 1 ]; then
 177 (
 178 cat << ENDFOOTER
 179 }\end{document}
 180 ENDFOOTER
 181 ) >> $tmpdir/out.tex
 182 else
 183 (
 184 cat << ENDFOOTER
 185 \end{eqnarray*}}
 186 \end{document}
 187 ENDFOOTER
 188 ) >> $tmpdir/out.tex
 189 fi
 190
 191 cd $tmpdir
 192 for f in $homedir/*.eps; do
 193     test -f ${f##*/} || ln -s $f . # multi-processing!
 194 done
 195 latex -interaction=batchmode out.tex > /dev/null
 196 cd "$homedir"
 197 dvips -o $tmpdir/out.eps -E $tmpdir/out.dvi 2> /dev/null
 198
 199 #
 200 # Transparent background
 201 #
 202
 203 if [ $trans -eq 1 ]; then
 204         if [ $aa -eq 1 ]; then
 205                 convert +adjoin -antialias -transparent $color1 -density $resolution $tmpdir/out.eps $tmpdir/out.$format
 206         else
 207                 convert +adjoin +antialias -transparent $color1 -density $resolution $tmpdir/out.eps $tmpdir/out.$format
 208         fi
 209 else
 210         if [ $aa -eq 1 ]; then
 211                 convert +adjoin -antialias -density $resolution $tmpdir/out.eps $tmpdir/out.$format
 212         else
 213                 convert +adjoin +antialias -density $resolution $tmpdir/out.eps $tmpdir/out.$format
 214         fi
 215 fi
 216
 217
 218 if [ -e $tmpdir/out.$format ]; then
 219         mv $tmpdir/out.$format $outfile
 220 else
 221         mv $tmpdir/out.$format.0 $outfile
 222 fi
 223
 224 let OPTIND=$OPTIND+1
 225 outfile=""
 226 done
 227
 228 #
 229 # Cleanup
 230 #
 231
 232 rm -rf $tmpdir
 233 exit 0