Re: using command-error-function in emacspeak

[Jarek Czekalski]

W dniu 2013-11-03 22:20, Stefan Monnier pisze:
> > However I agree that add-function would be better if it did that job for us.
> add-function is the to modify the behavior of a function.
> It can't know what `nil' represents.

This is what nil represents:

(defun nil-fun () nil)

Add-function may add such a function to a chain if it couldn't deal with 
nil values in another way.

What am I missing?

BTW: Please let me know if I should do something about the patch here: 
http://lists.gnu.org/archive/html/emacs-devel/2013-11/msg00048.html. If 
I should first follow Xue's suggestion, sure I'll do it.

Jarek