else if (action.equalsIgnoreCase ("visualize")) {
crawler.setAction (null);
//workbench.setGraphVisible (true);
}
else if (action.equalsIgnoreCase ("extract"))
crawler.setAction (new ExtractAction (new Tagexp (pattern),
true, filename, false));
else if (action.equalsIgnoreCase ("none"))
crawler.setAction (null);
else
throw new RuntimeException ("unknown action: " +action);