public void install() { fSourceViewer.addTextInputListener(this); start(fSourceViewer.getDocument());
public void install(IDocument document) { fDocument= document; fDocument.addPositionCategory(fCategory); fDocument.addPositionUpdater(fPositionUpdater);
			public void install() {				fSourceViewer.addTextInputListener(this);				start(fSourceViewer.getDocument());			}