GNU bug report logs - #25599
26.0.50; "Marker does not point anywhere" error signaled by primitive-undo near an overlay with an auto-removal insert-in-front-hooks value

Previous Next

Full log

Message #11 received at 25599 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: nitish chandra <nitishchandrachinta <at> gmail.com>
Cc: 25599 <at> debbugs.gnu.org
Subject: Re: bug#25599: Why edit markers after insert?
Date: Wed, 08 Mar 2017 18:39:23 +0100

On Mär 08 2017, nitish chandra <nitishchandrachinta <at> gmail.com> wrote:

> In primitive-undo in simple.el, aroud line 2550 (in master) we adjust the
> markers after the insertion.
>
> (dolist (adj valid-marker-adjustments)
>                (set-marker (car adj)
>                            (- (car adj) (cdr adj))))
>
> Why is this needed? Won't insert take care of adjusting the markers?

Only marker originally pointing inside the deleted region were recorded
here, and this is to make sure they regain their previous position after
the reinsertion.

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.