bug#50506: 28.0.50; display-line-numbers equivalent for linum-format?

[Eli Zaretskii]

> From: Michael Gallagher - NOAA Affiliate <michael.r.gallagher@noaa.gov>
> Date: Tue, 14 Sep 2021 10:17:31 -0600
> Cc: Lars Ingebrigtsen <larsi@gnus.org>, 50506@debbugs.gnu.org
> 
> OK. Here we go. I found some time last night. Attached is a git patch file 
> for changes that implement this
> feature request as well as (GNU) diffs for the individual files in question. 
> It's a pretty simple commit. It's worth
> noting that I'm probably overlooking something in how I create the glyph, I 
> definitely don't understand the
> nuances of the display code. But I hope it's helpful. 

Thanks.  But I don't see that you did anything about the problem with
R2L lines.  What happens if you turn on display-line-numbers-mode in
the buffer that visits TUTORIAL.he, and then turn on this feature in
that buffer? don't you see the separator line on the wrong side of the
line numbers?