public static void main( String args[] ) throws ParseException
{
InputStream in = args.length == 0 ? System.in : inFromFile( args[0] );
JenaRules parser = new JenaRules( in );
RuleSet rs = parser.ruleset();
rs.prettyPrint( System.out );
}
static InputStream inFromFile( String fileName )
{
try { return new FileInputStream( fileName ); }