[XeTeX] Bidi equation numbering

[Aryeh Weiss]

Actually, the )1( is not a problem. I can just go to \LRE for the 
equation, and then everything is fine.

--aryeh

Vafa Khalighi wrote:
>     Thank you for your reply. Concerning the )I( appearance, Mehdi Omidali 
> 
>     sent me a patch that fixed this, so that the parentheses now appear 
>     correctly.
> 
>     This is the patch:
> 
>     \makeatletter
>     \def\equation{\beginL$$\refstepcounter{equation}}
>     \def\endequation{\eqno \hbox{\@eqnnum}$$\endL\@ignoretrue}
> 
>     \def\@eqnnum{{\normalfont \normalcolor
>     \if at RTL <http://tug.org/mailman/listinfo/xetex>\beginR\fi(\theequation)\if at RTL <http://tug.org/mailman/listinfo/xetex>\endR\fi}} 
> 
> 
> Do not do that. That is not a patch. This is the part of the code from 
> new experimental version of bidi package but this will make trouble 
> because in v1.0.3, amsmath is loaded by defualt and that definition 
> makes things broken. In the newest version of bidi (experimental one), 
> amsmath is not loaded so that above definition fixes the issue of the 
> placement of equation numbers.
> 
>     I tried the leqno option, but the equation number remained on the right.
>     I found that this is caused by the patched equation environment 
> 
>     definition. If I remove it, then the leqno option works, but then I also  
> 
> That is eaxctly one side effect of putting the above code in v1.0.3 as I 
> have explained above. Delete above code from your document, use leqno 
> option so equations appear on the left. About the )I(, I need to say 
> that you need to define your RTL font to be the \normalfont, otherwise 
> that happens.
> 
> So if \hebfont stands for font of your hebrew document, then say 
> \let\normalfont\hebfont or something similar.
> 
>     So what I still dont know is now to pick up the [leqno] flag to do it 
>     more elegantly than defining two separate equation environments.
> 
> 
> No need for the codes, simply use bidi without adding extra codes, but 
> define your hebrew font to be your \normalfont and you should be fine.
> 
>      
> 
> 
> -- 
> Vafa


-- 
Aryeh Weiss
School of Engineering
Bar Ilan University
Ramat Gan 52900 Israel

Ph:  972-3-5317638
FAX: 972-3-7384050