GNU bug report logs - #79395
30.2; Search for a function inside a mini buffer

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Juri Linkov <juri <at> linkov.net>
Cc: jcubic <at> onet.pl, 79395 <at> debbugs.gnu.org
Subject: bug#79395: 30.2; Search for a function inside a mini buffer
Date: Sun, 07 Sep 2025 10:29:56 +0300

> Cc: 79395 <at> debbugs.gnu.org
> From: Juri Linkov <juri <at> linkov.net>
> Date: Sat, 06 Sep 2025 21:34:58 +0300
> 
> > You can search inside mini buffer, `M-x C-s`, to find a command to execute.
> > But it seems that you can't run `C-h f C-s` to search function documentation.
> > there are no list to search through. And the search says [Failing I-search] no
> > matter what you type.
> >
> > There was related bug report in 2012:
> >
> > https://debbugs.gnu.org/cgi/bugreport.cgi?bug=12490
> >
> > When the feature of searching inside mini buffer was removed (by accident I
> > assume). There was a workaround created back then. I'm not sure if the
> > workaround also fixed `C-h f` (most likely did, I would probably found this
> > sooner), but now it's not working the same as the workaround that I was
> > given. I also run in `emacs -Q` and `M-x C-s` is working there, but
> > `C-h f C-s` do not.
> >
> > I also checked `C-h v C-s`, so I can assume that all docs have the same
> > issue.
> 
> Sorry, help-related commands recently were excluded from C-s
> by the request at https://debbugs.gnu.org/cgi/bugreport.cgi?bug=64656
> 
> When you remove the symbol `help--symbol-completion-table`
> from the function `minibuffer-default-add-completions`,
> this will restore the functionality that you need.

Thanks.

However, the discussion in bug#64656 is very long and talks about
quite a few separate issues.  Could you please summarize only the part
that is related to using C-s at the prompt of "C-h f"?  In particular,
what is "C-s" supposed to search in this case, when the minibuffer is
empty?

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