doc/gdesklets/ps2eps

   1 #! /bin/sh
   2 #------------------------------------------------------------------------------
   3 # ps2eps, written by S.Fourmanoit, 2005
   4 #
   5 # Script that uses psutils and ghostscript to generate
   6 # a sequence of compliant encapsulated postscript files
   7 # out of a single postscript input.
   8 #
   9 # It was written as a filter for ansi2ps output, and its
  10 # really not a generry usage converter.
  11 #
  12 # Typical usage:
  13 #
  14 # command_with_some_ansi_escaped_output | ansi2ps | ps2eps [prefix]
  15 #
  16 # Where prefix is the file prefix used for outputting.
  17 #
  18 # If nothing is specified, it is defaulted to /tmp/out
  19 #
  20 #------------------------------------------------------------------------------
  21 # Capture input
  22 #
  23 IN=`mktemp`
  24 cat > $IN
  25
  26 # Get the output prefix
  27 #
  28 PREFIX=$1
  29 : ${PREFIX:=/tmp/out}
  30
  31 # Get the number of page
  32 #
  33 PAGES=$(sed -n '/^%%Pages: /{s/.*\([0-9]\+\)$/\1/;p}' $IN)
  34 echo "Outputting $PAGES encapsulated postscripts."
  35
  36 for I in $(seq -w 1 $PAGES); do
  37     FILE=${PREFIX}_${I}
  38     echo -n "Extracting page ${I}..."
  39     psselect -p${I} ${IN} ${FILE}.ps &> /dev/null
  40     echo  "OK"
  41     echo -n "Computing bounding box..."
  42     BBOX=$(gs -q -sDEVICE=bbox -dBATCH ${FILE}.ps 2>&1 | sed -n '/^%%/{1p}')
  43     echo "OK."
  44     echo -n "Finalizing eps creation..."
  45     sed '/%%BoundingBox/{s/.*/'"${BBOX}"'/};s/showpage//g' ${FILE}.ps \
  46         > ${FILE}.eps
  47     rm ${FILE}.ps
  48     echo "${FILE}.eps created."
  49 done
  50
  51 # Final cleanup
  52 rm $IN