~/.uim として

(require "japanese.scm")
(define ja-rk-rule
(append '((((",") . ()) ("," "," ","))
(((".") . ()) ("." "." "."))
((("z" " "). ())(" " " " " ")))
ja-rk-rule))

EUCで(ここ重要) つくっておく.

再起動したら,カンマ・ピリオドになった.