From: "Herman, Geza" <geza.herman@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 64988@debbugs.gnu.org
Subject: bug#64988: 30.0.50; move-to-column can move across lines if there is a text with display property
Date: Tue, 1 Aug 2023 16:32:22 +0200 [thread overview]
Message-ID: <ba172766-95ad-415c-a1d8-e28bef0315f0@gmail.com> (raw)
In-Reply-To: <83jzue28ri.fsf@gnu.org>
On 8/1/23 15:26, Eli Zaretskii wrote:
> Copy text into a temporary buffer, remove 'display' properties, call
> move-to-column there, then move to the same position in the original
> buffer?
Yep, that's a possible solution, but I feel that it is such a basic
functionality, emacs should be able to solve this question without using
such workarounds. But this is just an intuition, feel free to ignore it
:) Column-enforce-mode can be already slow for large files, if it had to
do this copy all the time it would be even slower.
>> Regarding how to fix this problem: wouldn't it make sense to stop
>> calculating the width at the first "\n" in the displayed string?
> Stop calculating and do what? move-to-column doesn't just calculate,
> it should move point to some place. Where do you want to move point
> in these cases?
I understand that solving this problem if we want to stick with the
current idea of move-to-column (meaning that it has to consider display
properties), is hard, or even we can say that there are no good
solutions. But ideally, it should move the cursor to the closest
possible location in the same visual line. As far as I understand the
intention of this function.
But for my problem, I don't think that this is the way to go.
Column-enforce-mode should calculate columns without considering
properties. I'd be good if emacs gave an out-of-box solution for this
(without using copying), but if it doesn't, it's also fine.
next prev parent reply other threads:[~2023-08-01 14:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-01 10:53 bug#64988: 30.0.50; move-to-column can move across lines if there is a text with display property Herman, Géza
2023-08-01 12:25 ` Eli Zaretskii
2023-08-01 12:57 ` Herman, Geza
2023-08-01 13:26 ` Eli Zaretskii
2023-08-01 14:32 ` Herman, Geza [this message]
2023-09-02 16:38 ` Stefan Kangas
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