From: Marcin Borkowski <mbork@mbork.pl>
To: Michael Heerdegen <michael_heerdegen@web.de>
Cc: help-gnu-emacs@gnu.org
Subject: Re: How to temporarily show an image in an Emacs buffer?
Date: Sun, 12 Mar 2023 08:46:38 +0100 [thread overview]
Message-ID: <87356a4dk1.fsf@mbork.pl> (raw)
In-Reply-To: <87zg8i4p3l.fsf@web.de>
On 2023-03-12, at 04:37, Michael Heerdegen <michael_heerdegen@web.de> wrote:
> Marcin Borkowski <mbork@mbork.pl> writes:
>
>> I didn't experiment with this, but I'm afraid that interlacing changes
>> to the buffer done by the user (when recording undo changes) and by the
>> Elisp code (while `buffer-undo-list' is bound to `t') may result in
>> undoing being impossible.
>
> Yes, what is allowed is very limited. AFAIU anything changing any
> positions is already very bad (undo positions are numbers, not markers).
Thanks, that confirms my reservations, and shows that overlays are the
way to go.
Best,
--
Marcin Borkowski
http://mbork.pl
next prev parent reply other threads:[~2023-03-12 7:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-08 4:53 How to temporarily show an image in an Emacs buffer? Marcin Borkowski
2023-03-08 5:23 ` Marcin Borkowski
2023-03-08 6:19 ` Ruijie Yu via Users list for the GNU Emacs text editor
2023-03-08 16:01 ` Marcin Borkowski
2023-03-08 16:41 ` Michael Heerdegen
2023-03-11 8:14 ` Marcin Borkowski
2023-03-12 3:37 ` Michael Heerdegen
2023-03-12 7:46 ` Marcin Borkowski [this message]
2023-03-08 13:38 ` Eli Zaretskii
2023-03-08 16:00 ` Marcin Borkowski
2023-03-13 8:29 ` Jean Louis
2023-03-13 9:27 ` Marcin Borkowski
2023-04-01 15:57 ` Marcin Borkowski
2023-03-10 16:26 ` Stefan Monnier via Users list for the GNU Emacs text editor
2023-03-11 8:15 ` Marcin Borkowski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87356a4dk1.fsf@mbork.pl \
--to=mbork@mbork.pl \
--cc=help-gnu-emacs@gnu.org \
--cc=michael_heerdegen@web.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).