IDocument document= new Document(content);
new PerlPartitioner(PerlEditorPlugin.getDefault().getLog(), document);
fPreviewViewer.setDocument(document);
chainedStore.addPropertyChangeListener(new IPropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
if (fPreviewViewer == null || fPreviewViewer.getTextWidget() == null)
return;
String p= event.getProperty();