;; Return t if substring of STR (between FROM and TO) can be broken up
;; to chunks all of which can be derived from another entry in SKK
;; dictionary. SKKBUF is the buffer where the original SKK dictionary
-;; is visited, KANA is the current entry for STR. FIRST is t iff this
-;; is called at top level.
+;; is visited, KANA is the current entry for STR. FIRST is t only if
+;; this is called at top level.
(defun skkdic-breakup-string (skkbuf kana str from to &optional first)
(let ((len (- to from)))