title: Regex for name problem
body: <p>I need regex  for recognizing names which can be <code>[a-zA-Z_]</code> then <code>.</code> (dot) then again <code>[a-zA-Z_]</code>.
  I <code>([a-zA-Z_]+) \.([a-zA-Z_]*)</code> but it doesn't work. Help ?
  Can anybody give me hoe to do that in JFlex ?</p>