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bug#61361: cursor cannot be at the start of overlay that starts with a n
From: |
Stefan Kangas |
Subject: |
bug#61361: cursor cannot be at the start of overlay that starts with a newline |
Date: |
Mon, 4 Sep 2023 14:08:08 -0700 |
Eli Zaretskii <eliz@gnu.org> writes:
> 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.
Since this is a wontfix, I'm closing this bug report.
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