#!/bin/bash

while read line
do
    kw=`echo $line | awk -F "[ ]" '{print $1}'`
    if [ "$kw" == "digraph" ]; then
	gname=`echo $line | awk -F "[ ]" '{print $2}'`
	fname=$gname".dot"
	pname=$gname".png"
	echo $kw" "$gname

	echo $line > $fname
	while read line
	do
	    if [ "$line" == "--separator--" ]; then
		dot -Tpng $fname -o $pname
		break
	    fi

	    echo $line >> $fname
	done
    fi
done