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From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Michael Heerdegen <michael_heerdegen@web.de>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Editing change groups
Date: Sat, 10 Nov 2018 08:15:08 -0500	[thread overview]
Message-ID: <jwvy3a1xehv.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87h8gpv8he.fsf@web.de> (Michael Heerdegen's message of "Sat, 10 Nov 2018 05:53:33 +0100")

>> >   (let ((g (prepare-change-group)))
>> >     (insert "a\n")
>> >     (activate-change-group g)
>>
>> You (*really*) shouldn't modify the buffer between
>> prepare-change-group and activate-change-group.
>
> Oh, it really means really, I see.

The world won't collapse, but the behavior will be different depending
on whether undo is enabled in the buffer and the semantics is unclear.

> But the effect on the experiment is negligible, the behavior is still
> not what I expect if I change that.

I'm not sure which experiment this refers to.


        Stefan



  reply	other threads:[~2018-11-10 13:15 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
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 [this message]
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

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