GNU bug report logs - #30204
27.0.50; Changing major mode resets non-default invisibility spec

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From: Robert Pluim <rpluim <at> gmail.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 30204 <at> debbugs.gnu.org, p.stephani2 <at> gmail.com, Richard Stallman <rms <at> gnu.org>
Subject: bug#30204: 27.0.50; Changing major mode resets non-default invisibility spec
Date: Sat, 09 Oct 2021 12:55:54 +0200

>>>>> On Fri, 08 Oct 2021 00:25:57 +0200, Lars Ingebrigtsen <larsi <at> gnus.org> said:

    Lars> Richard Stallman <rms <at> gnu.org> writes:
    >> I see the usefulness of a command to remove such things from the
    >> buffer, but I don't think it fits the Emacs concept of "mode".  It
    >> changes the contents of the buffer.
    >> 
    >> I suggest renaming it to something like `clean-buffer'.

    Lars> It's a mode -- it continues to remove text properties from text you yank
    Lars> into it.

I see you did that with 'after-change-functions'. Would a
'pre-yank-hook' be a useful addition to Emacs? I often yank output
from badly behaved programs, and having a buffer-local hook to replace
non-breaking-spaces and the like before insertion would be useful.

Robert
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