code: public Style getStyleForScanValue( int code )
    {
      Style s = _tokenStyles.get( new Integer( code ) );
      if( s == null )
      {
        s = getStyle( DEFAULT_STYLE );
      }
      return s;
    }
docs: Fetches the attribute set to use for the given scan code.  The set is
  stored in a table to facilitate relatively fast access to use in
  conjunction with the scanner.