unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: Eli Zaretskii <eliz@gnu.org>
To: Michael Heerdegen <michael_heerdegen@web.de>,
	Richard Stallman <rms@gnu.org>
Cc: help-gnu-emacs@gnu.org, npostavs@gmail.com
Subject: Re: Editing change groups
Date: Fri, 09 Nov 2018 15:14:24 +0200	[thread overview]
Message-ID: <83k1lmbdfz.fsf@gnu.org> (raw)
In-Reply-To: <87bm6ywhli.fsf@web.de> (message from Michael Heerdegen on Fri, 09 Nov 2018 13:39:05 +0100)

> From: Michael Heerdegen <michael_heerdegen@web.de>
> Date: Fri, 09 Nov 2018 13:39:05 +0100
> Cc: Help Gnu Emacs mailing list <help-gnu-emacs@gnu.org>
> 
> Noam Postavsky <npostavs@gmail.com> writes:
> 
> > Possible alternative approach with prior art in string-rectangle: fake
> > the change with overlays for preview, then it's easy to remove.
> 
> Hmm - does that mean you also don't know how these change groups work
> ;-)

If we want an explanation how it should work, we should ask Richard
(CC'ed), because he designed and implemented this.

FWIW, the following does work for me as expected:

  (catch 'foo
    (atomic-change-group
      (insert "a\n")
      (insert "b\n")
      (throw 'foo 1)))

If you evaluate this, you get 1 as the value, and nothing inserted
into the buffer.



  reply	other threads:[~2018-11-09 13:14 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-09  7:52 Editing change groups Michael Heerdegen
2018-11-09  8:39 ` Joost Kremers
2018-11-09 11:58 ` Noam Postavsky
2018-11-09 12:39   ` Michael Heerdegen
2018-11-09 13:14     ` Eli Zaretskii [this message]
2018-11-09 13:12 ` Michael Heerdegen
2018-11-09 13:52 ` Stefan Monnier
2018-11-10  4:53   ` Michael Heerdegen
2018-11-10 13:15     ` Stefan Monnier
2018-11-10 16:23       ` Michael Heerdegen
2018-11-10 18:07         ` Stefan Monnier
2018-11-11  8:01           ` Michael Heerdegen
     [not found] <mailman.3697.1541749970.1284.help-gnu-emacs@gnu.org>
2018-11-09 11:41 ` Ben Bacarisse
2018-11-09 12:10   ` Michael Heerdegen
     [not found]   ` <mailman.3721.1541765458.1284.help-gnu-emacs@gnu.org>
2018-11-09 13:36     ` Ben Bacarisse
2018-11-09 13:58       ` Michael Heerdegen

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=83k1lmbdfz.fsf@gnu.org \
    --to=eliz@gnu.org \
    --cc=help-gnu-emacs@gnu.org \
    --cc=michael_heerdegen@web.de \
    --cc=npostavs@gmail.com \
    --cc=rms@gnu.org \
    /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).