GNU bug report logs - #21609
24.5; Undesirable Cursor Jump After Movement with M-left or M-right in Term-Mode

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Phil Sainty <psainty <at> orcon.net.nz>
Cc: p.stephani2 <at> gmail.com, 24837 <at> debbugs.gnu.org, 21609 <at> debbugs.gnu.org, bug-gnu-emacs-bounces+psainty=orcon.net.nz <at> gnu.org
Subject: bug#21609: bug#24837: 26.0.50; term.el: In char mode, displayed and executed commands can differ
Date: Fri, 29 Sep 2017 11:37:48 +0300

> Date: Mon, 25 Sep 2017 16:09:22 +1300
> From: Phil Sainty <psainty <at> orcon.net.nz>
> Cc: 24837 <at> debbugs.gnu.org, 21609 <at> debbugs.gnu.org, bug-gnu-emacs
>  <bug-gnu-emacs-bounces+psainty=orcon.net.nz <at> gnu.org>
> 
> On 2017-09-25 13:48, Phil Sainty wrote:
> > So keyboard events cannot leave point in the wrong position; and while
> > mouse events can do so, as soon as the keyboard is involved again we
> > jump to where we're supposed to be.
> 
> Thinking on this further, it might be even better to use 
> pre-command-hook
> to establish whether the pre-command position of point is equal to the
> process mark, and then act conditionally on that in post-command-hook,
> so that if the pre-command point did not already match the process mark,
> we do *not* forcibly move it to the process mark afterwards.

Do you have a patch along these lines?

Thanks.

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