GNU bug report logs - #66942
move-to-column behavior when newlines have a display property

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Package: emacs; Reported by: Sebastian Wålinder <s.walinder@HIDDEN>; Keywords: notabug wontfix; merged with #64988; dated Sun, 5 Nov 2023 05:45:03 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.
Forcibly Merged 64988 66942. Request was from Eli Zaretskii <eliz@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

Message received at 66942 <at> debbugs.gnu.org:


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From: Eli Zaretskii <eliz@HIDDEN>
To: Sebastian =?utf-8?Q?W=C3=A5linder?= <s.walinder@HIDDEN>
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Subject: Re: bug#66942: move-to-column behavior when newlines have a display
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unarchive 64988
forcemerge 66942 64988
thanks

> From: Sebastian Wålinder <s.walinder@HIDDEN>
> Date: Sun, 05 Nov 2023 09:14:05 +1100
> 
> There was a bug that I encountered in a downstream Emacs package relating to setting line-move-visual to nil and running line-move when the package has created overlays on newlines.
> 
> The maintainer of the package has tracked down the bug to some incorrect behavior in the function move-to-column when overlays are present on newlines.
> 
> Here's a link to the issue that describes the issue with move-to-column:
> https://github.com/jdtsmith/indent-bars/issues/22
> 
> Thoughts?

It's the intended behavior.  It is the best Emacs can do given the
limitations posed by such overlay strings, see the detailed
explanation in bug#64988.

My best recommendation is not to use overlay strings with embedded
newlines, if accurate movement by columns is important.




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#66942; Package emacs. Full text available.

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From: =?utf-8?Q?Sebastian_W=C3=A5linder?= <s.walinder@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: move-to-column behavior when newlines have a display property
Date: Sun, 05 Nov 2023 09:14:05 +1100
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Hello! 

There was a bug that I encountered in a downstream Emacs package relating to setting line-move-visual to nil and running line-move when the package has created overlays on newlines.

The maintainer of the package has tracked down the bug to some incorrect behavior in the function move-to-column when overlays are present on newlines.

Here's a link to the issue that describes the issue with move-to-column:
https://github.com/jdtsmith/indent-bars/issues/22

Thoughts?

Thank you!




Acknowledgement sent to Sebastian Wålinder <s.walinder@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#66942; Package emacs. Full text available.
Please note: This is a static page, with minimal formatting, updated once a day.
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Last modified: Sun, 5 Nov 2023 06:15:02 UTC

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