[luatex] \predisplaydirection from etex in luatex has no effect

[Khaled Hosny]

On Thu, Apr 08, 2010 at 02:11:39PM +0200, Taco Hoekwater wrote:
> 
> 
> Khaled Hosny wrote:
> > 
> > May preference is to treat left and right as "start of the line" and
> > "end of the line", so that existing macro code will give the logically
> > expected result when one switches direction (one setting equation number
> > to the right is actually expecting it at the start of the line). 
> 
> Ok, but that leaves the question whether \pardir or \mathdir decides
> on start/end. Vafa clearly prefers \mathdir, but I am not so sure myself.

I think, the equation number is related to paragraph and not math
direction as it is a general layout item i.e. if I'm setting a RTL math
equation inside a LTR document, I'll want all equation numbers to be on
the same side regardless of the actual direction of the equation itself.

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer