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bug#21252: 25.0.50; `describe-variable': use current buffer, not minibuf
From: |
Lars Ingebrigtsen |
Subject: |
bug#21252: 25.0.50; `describe-variable': use current buffer, not minibuffer, in `completing-read' PREDICATE |
Date: |
Sun, 01 May 2016 00:09:18 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
Drew Adams <drew.adams@oracle.com> writes:
> This bug is at least as old as Emacs 20! Never noticed it before.
>
> 1. emacs -Q
> 2. Type this in *scratch* and evaluate it using `C-x C-e':
>
> (set (make-local-variable 'toto) 42)
>
> 3. C-h v tot TAB
>
> There is no completion for variable `toto'.
>
> The reason is that the PREDICATE arg passed to `completing-read' gets
> evaluated with the minibuffer as the current buffer, and `toto' is not
> bound in the minibuffer.
>
> The predicate should use `with-current-buffer' to make the originally
> current buffer current for the test.
Makes sense. I applied your changes, slightly changed.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
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Lars Ingebrigtsen <=