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bug#27544: 25.1; Visualization of Unicode bidirectional marks


From: Eli Zaretskii
Subject: bug#27544: 25.1; Visualization of Unicode bidirectional marks
Date: Sat, 01 Jul 2017 15:51:21 +0300

> From: Itai Berli <address@hidden>
> Date: Sat, 1 Jul 2017 15:36:39 +0300
> 
> > This is how Emacs behaves, again in line with general Emacs feature of 
> > allowing users to see what's in the buffer.
> 
> Except the current display doesn't allow the user to see what's in the buffer.

I think it does: it shows the bidi controls instead of completely
hiding them.

>  > The UBA also allows to retain these characters, including display
> them, see section 5.2 there.
> 
> Well, section 5.2 of the UBA explains:
> 
> > retention of these formatting characters and BNs is important to users who 
> > need to display a graphic representation of hidden characters, and who thus 
> > need to obtain their visual positions for display.
> 
> Emacs users who need to display a graphic representation of the bidi
> marks are ill-served by the current implementation. And so are those
> who don't need to display a graphic representation of them. The
> current implementation is the worse of both worlds.

Well, I obviously disagree.

In any case, Emacs provides customizations to change the display of
these controls to your liking, and modes which have such needs can do
that in the buffers under the mode.  the Emacs implementation allows
all that.  If we hear enough report from people who would like the
defaults to change, we could consider that in the future.





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