import edu.neu.ccs.demeter.dj.*;
Container =			<contents> List.

List :			N
			| E			.

E =			extends List.

N =			<first> Item <rest> List extends List.

Item =			<name> Ident <w> Weight.

Weight =			<i> int.

SummingVisitorDJ =			<total> int extends Visitor.

CountingVisitorDJ =			<total> int extends Visitor.

AverageVisitorDJ =			<cV> CountingVisitorDJ <sV> SummingVisitorDJ <current> float extends Visitor.

ResultVisitorDJ =			<aV> AverageVisitorDJ extends Visitor.

Main =			.

notparsed visitor PrintVisitor =			<indent> int <needSpace> boolean extends UniversalVisitor.

notparsed visitor CopyVisitor =			<copy> derived Object extends UniversalVisitor.

notparsed visitor SubgraphVisitor =			<is_equal> boolean init {{ true }} extends UniversalVisitor.

notparsed visitor EqualVisitor =			<is_equal> boolean init {{ true }} extends UniversalVisitor.

notparsed visitor DisplayVisitor =			<indent> int extends UniversalVisitor.

notparsed visitor TraceVisitor =			<indent> int extends UniversalVisitor.

notparsed visitor UniversalVisitor :						.