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Re: improving bidi documents display

From: Eli Zaretskii
Subject: Re: improving bidi documents display
Date: Thu, 24 Feb 2011 21:54:08 +0200

> Date: Thu, 24 Feb 2011 14:32:35 +0200
> From: Eli Osherovich <address@hidden>
> At the moment (using rev. 103371)  I can edit Hebrew/English LaTeX
> documents, however, the way they are displayed in Emacs is not perfect.
> Please look at the file attached as you can see any English text that
> appears inside a Hebrew paragraph requires certain decorations around it
> (e.g., \L{some English text}) these decorations are displayed in an ugly
> fashion.

Yes, it's a known problem.  The Unicode UAX#9 Bidirectional algorithm
(which is what Emacs implements for bidirectional display) does not
produce good results with LaTeX (and with other kinds of markup).

> Is there anything that can be done about it?

Something _should_ be done, for sure.  But for that, Someone™ should
figure out how this kind of problems could be solved using Emacs
display features.  Any solution will probably involve reordering only
parts of text, but a more detailed design suggestion is needed before
it can be implemented.  People are welcome to try to tackle this,
because I'm still busy with low-level bidi support of plain text.

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