Model:
	(paths +=Path ";")*;
	
Path:
	GlobalPath | LocalPath
;	

GlobalPath:
	"($" (PathSegment(">" PathSegment)*)? ")"
;

LocalPath:
	"(*" (PathSegment(">" PathSegment)*)? ")"	
;

PathSegment:
	ID | Path
;

public class MyDslSemanticHighlightingCalculator extends DefaultSemanticHighlightingCalculator {
	
	@Inject 
	private MyDslGrammarAccess ga;
	
	@Inject
	private OperationCanceledManager operationCanceledManager;
	
	@Override
	protected boolean highlightElement(EObject object, IHighlightedPositionAcceptor acceptor,
			CancelIndicator cancelIndicator) {
		if (object instanceof Model) {
			ICompositeNode node = NodeModelUtils.findActualNodeFor(object);
			handlePathNode(node,acceptor,cancelIndicator);
		}
		return super.highlightElement(object, acceptor, cancelIndicator);
	}
	
	private void handlePathNode(INode n, IHighlightedPositionAcceptor acceptor, CancelIndicator cancelIndicator) {
                acceptor.addPosition(n.getOffset(), n.getLength()-1, HighlightingStyles.STRING_ID);
		BidiTreeIterable<INode> iterable = n.getAsTreeIterable();
		for (INode nx : iterable) {
			operationCanceledManager.checkCanceled(cancelIndicator);
			EObject grammarElement = nx.getGrammarElement();
			if (grammarElement instanceof RuleCall) {
				if (ga.getGlobalPathRule() == ((RuleCall) grammarElement).getRule()) {
					acceptor.addPosition(nx.getOffset(), nx.getLength(), HighlightingStyles.KEYWORD_ID);
				}
			}
		}
	}
	

}