Re: the '?' in read-multiple-choice prompt

[Philip Kaludercic <philipk@posteo.net>]

[-- Attachment #1: Type: text/plain, Size: 537 bytes --]

Shynur Xie <one.last.kiss@outlook.com> writes:

> The function `read-multiple-choice' always display a '?' in the
> prompt.  E.g.,
>
>     (read-multiple-choice "prompt" '((?a "alpha")))
>     ;; prompt (alpha, ?):
>                       ^
>             How can I discard it?
>
> Moreover, if evaluating
>
>     (read-multiple-choice "prompt" '((?? "question")))
>     ;; prompt (? question, ?):
>                ^           ^
>          How to distinguish them?

That behaviour is currently hard-coded, but it would be easy to patch:


[-- Attachment #2: Type: text/plain, Size: 533 bytes --]

diff --git a/lisp/emacs-lisp/rmc.el b/lisp/emacs-lisp/rmc.el
index bfd7434be9a..d1241a26b68 100644
--- a/lisp/emacs-lisp/rmc.el
+++ b/lisp/emacs-lisp/rmc.el
@@ -191,7 +191,7 @@ read-multiple-choice--short-answers
          tchar buf wrong-char answer)
     (save-window-excursion
       (save-excursion
-        (if show-help
+        (if (and show-help (not (eq show-help 'no)))
             (setq buf (rmc--show-help prompt help-string show-help
                                       choices altered-names)))
 	(while (not tchar)

[-- Attachment #3: Type: text/plain, Size: 184 bytes --]


Now

(read-multiple-choice "prompt" '((?a "alpha")) nil 'no)

does not add a question mark, and

(read-multiple-choice "prompt" '((?? "question")) nil 'no)

still returns "question".