@example
(defvar help-mode-map
(let ((map (make-sparse-keymap)))
- (set-keymap-parent map (make-composed-keymap button-buffer-map
- special-mode-map))
+ (set-keymap-parent map
+ (make-composed-keymap button-buffer-map special-mode-map))
... map) ... )
@end example
@end defvar
@cindex key translation function
-You can use @code{input-decode-map}, @code{local-function-key-map}, or
-@code{key-translation-map} for more than simple aliases, by using a
-function, instead of a key sequence, as the ``translation'' of a key.
-Then this function is called to compute the translation of that key.
+You can use @code{input-decode-map}, @code{local-function-key-map},
+and @code{key-translation-map} for more than simple aliases, by using
+a function, instead of a key sequence, as the ``translation'' of a
+key. Then this function is called to compute the translation of that
+key.
The key translation function receives one argument, which is the prompt
that was specified in @code{read-key-sequence}---or @code{nil} if the