From: martin rudalics <rudalics@gmx.at>
To: R.Ekker@ai.rug.nl
Cc: bug-gnu-emacs@gnu.org
Subject: Re: highlight-changes-rotate-faces sets buffer modified flag
Date: Tue, 08 May 2007 08:10:45 +0200 [thread overview]
Message-ID: <46401465.4050803@gmx.at> (raw)
> Running the function highlight-changes-rotate-faces sets the buffer's
> modified flag. It seems to me that this should not happen, since only
> some faces are changed.
Thank you for sending a report on this. In principle a "face change"
may change the buffer-modified state and can be undone as well. In the
present case I agree with you that the buffer-modified state should not
change. I believe that most of theses face changes were obscured by
changes in the buffer text, hence probably people didn't notice.
> As a workaround, I use the following advice:
>
>
> ;; advice for highlight-changes-rotate-faces
> ;; so that it does not change the modified flag for the buffer
> (defadvice highlight-changes-rotate-faces (around around-rotate-faces)
> (let ((was-modified (buffer-modified-p)))
> ad-do-it
> (unless was-modified
> (set-buffer-modified-p nil))))
> (ad-activate 'highlight-changes-rotate-faces)
You proably do not want adding an entry to `buffer-undo-list' either.
>
>
> The version string of my emacs:
> "GNU Emacs 21.3.1 (i386-mingw-nt5.1.2600) of 2004-03-10 on NYAUMO"
AFAICT this problem is still present in Emacs 22. In addition, it seems
to me that turning off `highlight-changes-mode' may set the
buffer-modified state as well. Could you please verify this on your
system?
next reply other threads:[~2007-05-08 6:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-08 6:10 martin rudalics [this message]
2007-05-09 9:29 ` highlight-changes-rotate-faces sets buffer modified flag Reindert-Jan Ekker
2007-05-09 12:24 ` martin rudalics
2007-05-09 13:41 ` Reindert-Jan Ekker
2007-05-09 16:53 ` martin rudalics
-- strict thread matches above, loose matches on Subject: below --
2007-05-07 15:30 Reindert-Jan Ekker
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