[plt-scheme] help about javascript.plt

Hello all,
  Sory my bad English.
  
  I need help about javascript.plt.
  How i can use national char in declaration of ID?
  when i change declaration of
  [letter (union   (range #\a #\z) (range #\A #\Z))]
  to
  [letter (union   (range #\a #\z) (range #\A #\Z) (range #\а #\я)
  (range #\А #\Я))]
  i can't get end of lexeme, becouse not read space as delimiter

  Or, may be anybody can tell me e-mail of author this product?
  
  

-- 
Best regards,
 wwall                          mailto:wwall at yandex.ru