#!/bin/sh
# PostScript picture rotation to -90 deg

OPTIONS=" "
while true
do
	case "$1" in
	-*) OPTIONS="$OPTIONS $1" ;;
	*)  break ;;
	esac
	shift
done
echo $1 $OPTIONS

if [ $# -ne 2 ]; then
        echo "Postscript file rotation to -90 deg"
	echo "Usage: `basename $0` ...switches... input.ps output.ps" 1>&2
	exit 1
fi

in=$1
out=$2
t1=tmp.ps
t2=tmp.epsi

cat $in | grep -v HiResBoundingBox > $t1
ps2epsi $t1
x0=`cat $t2 | grep '^%%BoundingBox:' | awk ' NF > 4 {print $2}'`
y0=`cat $t2 | grep '^%%BoundingBox:' | awk ' NF > 4 {print $3}'`
x0=`expr -$x0 - 612`

rm -f $t1 $t2

exec gs -sDEVICE=pswrite -sOutputFile=$out -dNOPAUSE -dBATCH $OPTIONS -c -90 rotate $x0 -$y0 translate -f $in