#!/bin/sh 

if [ ${#} -ne "1" ]; then
	echo "Usage: ${0} <word document>"
	exit 1
fi

# check our requirements
type wvPS 2>&1 >/dev/null
if [ ${?} -ne "0" ]; then
	echo "Error: required program 'wvPS' was not found"
	exit 1
fi

# viewer application
GV=""

# check for gnome ghost-view first
type ggv 2>&1 >/dev/null
if [ ${?} -eq "0" ]; then
	GV="ggv"
else
	# TODO: does kde have something?

	# try to default back onto gv
	type gv 2>&1 >/dev/null
	if [ ${?} -eq "0" ]; then
		GV="gv"
	else
		# old solaris systems
		type ghostview 2>&1 >/dev/null
		if [ ${?} -eq "0" ]; then
			GV="ghostview"
		else
			# unrecoverable error
			echo "Could not find a suitable PostScript viewer."
			echo "Please install ggv, gv, or ghostview"
			exit 1
		fi
	fi
fi

# temporary PS file, mangled to get some sort
# of semi-uniqueness
FILE=`basename ${1}`
TMPPS="/tmp/${FILE}-${USER}-${$}.ps" 
wvPS ${1} ${TMPPS}
if [ ${?} -ne "0" ]; then 
	echo "Could not translate into Postscript" 
	exit 1 
fi 

# call our ghost-viewer
exec "${GV} ${TMPPS}"
exit ${?}