From: Eli Zaretskii <eliz@gnu.org>
To: Xinyang Chen <chenxy@mit.edu>
Cc: 61361@debbugs.gnu.org
Subject: bug#61361: cursor cannot be at the start of overlay that starts with a newline
Date: Wed, 08 Feb 2023 15:08:43 +0200 [thread overview]
Message-ID: <83o7q4nw2s.fsf@gnu.org> (raw)
In-Reply-To: <CAKGiUYy-9ZLHxKchx+RDzP+tvykvjbE17OQ2ywEz-EePgH8piA@mail.gmail.com> (message from Xinyang Chen on Tue, 7 Feb 2023 23:29:31 -0500)
tags 61361 wontfix
thanks
> From: Xinyang Chen <chenxy@mit.edu>
> Date: Tue, 7 Feb 2023 23:29:31 -0500
>
> steps to reproduce:
> ;; test line
> (if (and (boundp 'overlay) (overlayp overlay)) (delete-overlay overlay))
> (setq overlay (make-overlay 1 2))
> (overlay-put overlay 'display "\nhello")
> ;; same result if you do this intead
> ;; (overlay-put overlay 'display (propertize "\nhello" 'cursor 0))
>
> cursor does not display in the first line.
Emacs cannot do what you are asking because the newline leaves no
glyph on display. So the display engine cannot place the cursor on
the newline as it does on other characters, which do have glyphs.
This is a limitation of the 'cursor' property feature. Sorry.
next prev parent reply other threads:[~2023-02-08 13:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-08 4:29 bug#61361: cursor cannot be at the start of overlay that starts with a newline Xinyang Chen
2023-02-08 13:08 ` Eli Zaretskii [this message]
2023-02-08 14:41 ` Dmitry Gutov
2023-02-08 15:12 ` Eli Zaretskii
[not found] ` <CAKGiUYy8m+nD6Z7wmOpPmGCvvVzuixcdhQathCK8hr4KAFpcCw@mail.gmail.com>
2023-02-08 15:09 ` Eli Zaretskii
2023-02-08 15:16 ` Dmitry Gutov
2023-02-08 15:50 ` Eli Zaretskii
2023-02-08 22:06 ` Dmitry Gutov
2023-09-04 21:08 ` Stefan Kangas
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