GNU bug report logs - #19392
Emacs searches for dabbrevs in archive buffers

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From: Stefan Kangas <stefan <at> marxist.se>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Eli Zaretskii <eliz <at> gnu.org>, pogonyshev <at> gmail.com, 19392 <at> debbugs.gnu.org
Subject: bug#19392: Emacs searches for dabbrevs in archive buffers
Date: Fri, 22 Oct 2021 19:43:18 -0400

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> Eli Zaretskii <eliz <at> gnu.org> writes:
>
>>> We do have all of that, but I think that it would be reasonable (by
>>> default) for `dabbrev--select-buffers' to ignore these "binary"
>>> buffers.  Because the data there is mostly noise.
>>
>> If you want to do that, why not just add the appropriate regexp(s) to
>> dabbrev-ignored-buffer-regexps?
>
> It's a user option, so we shouldn't add things to it dynamically, but we
> could add a default that excludes these files.  The problem is, though,
> that that would be a very complex regexp matching everything that
> arc/tar/image modes covers, which is quite a lot.
>
> The user option thing also goes for `dabbrev-ignored-buffer-names'.

Shouldn't we rather have a defcustom to ignore certain major modes?
The name could be `dabbrev-ignored-major-modes'.

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