From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Re: How can I undo a change from a modification-hook?
Date: Wed, 26 Apr 2017 14:43:38 -0400 [thread overview]
Message-ID: <jwvy3unrowy.fsf-monnier+gmane.emacs.devel@gnu.org> (raw)
In-Reply-To: c7a04b48-0866-789f-b2dd-fef0d55989c9@gmail.com
>>>> In the case of PG, I'd suggest you treat such a case as
>>>> a non-whitespace change.
>>> But I can't, can I? The damage (the change) is already done at that point,
>>> and I can't revert it.
>> But you can "retract" until the beginning of the changed area.
> No, not if the current subprocess is busy.
Not sure why it matters: you queue the retraction commands for execution
when the subprocess is done with its current command(s).
Stefan
next prev parent reply other threads:[~2017-04-26 18:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-26 7:02 How can I undo a change from a modification-hook? Clément Pit--Claudel
2017-04-26 12:26 ` Stefan Monnier
2017-04-26 13:45 ` Clément Pit-Claudel
2017-04-26 13:52 ` Stefan Monnier
2017-04-26 14:23 ` Clément Pit-Claudel
2017-04-26 14:51 ` Stefan Monnier
2017-04-26 16:38 ` Clément Pit-Claudel
2017-04-26 18:43 ` Stefan Monnier [this message]
2017-04-26 19:02 ` Clément Pit-Claudel
2017-04-27 12:48 ` Stefan Monnier
2017-04-27 12:58 ` Clément Pit-Claudel
2017-04-27 17:36 ` Stefan Monnier
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