bug#19392: Emacs searches for dabbrevs in archive buffers

[Lars Ingebrigtsen]

Stefan Kangas <stefan@marxist.se> writes:

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

Are there a lot of these modes?  I'm just wondering whether this would
make things easier (in practice) or not.  So (off the top of my head),
this would be archive-mode, tar-mode, image-mode...  Uhm...  perhaps
those are the major ones?

Then it does sound like a simpler way to customise this, because there's
a lot of archive/image file names you'd have to match.

So I think adding `dabbrev-ignored-major-modes' sounds like a good idea.

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