Bidi: inserting Japanese paragraphs in Arabic/Farsi document

[Eli Zaretskii]

> From: Philippe Verdy <verdy_p at wanadoo.fr>
> Date: Sun, 20 Nov 2016 09:46:14 +0100
> 
> How should the following Japanese **paragraph** be displayed when inserted in a RTL context
> (Arabic/Farsi/...) ?
> 
> 【Japanese1】Japanese2
> 
> What I see in browsers is:
> 
> Japanese1】Japanese2 】
> 
> Why don't the Japanese backets pair together to avoid having one mirrored and not the other one ?

I guess your browser doesn't support the full Unicode 9.0 UBA.
Emacs 25, for example, does TRT: I see

                                                      Japanese2 【Japanese1】

(flushed all the way to the right margin of the window), as expected.

P.S. I assume that by "RTL context" you mean right-to-left base
paragraph direction.