Re: zonk *log-edit-files* for RCS (or when there is only one file)

[Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>]

Thien-Thi Nguyen wrote:

>  (defun ttn-log-edit-show-files-maybe ()
>    (unless (null (cdr (log-edit-files)))
>      (log-edit-show-files)))
>
> [...]
>
> It works fine, although i suspect the moment i add it to my
> pile of hacks, someone will check-in a more elegant
> method... :-D

On the contrary, that's so cool! I had to think and think and
think before I realized it is 0 or 1 file -> don't do it, but
2 or more files -> do it.

Only ... isn't `unless' and `null' = `when'?

(unless (null (cdr '()))    1) ; nil
(unless (null (cdr '(1)))   1) ; nil
(unless (null (cdr '(1 2))) 1) ; 1

(when         (cdr '())     1) ; nil
(when         (cdr '(1))    1) ; nil
(when         (cdr '(1 2))  1) ; 1

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