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Re: Unicode support

From: Eli Zaretskii
Subject: Re: Unicode support
Date: Tue, 24 Jul 2001 14:45:56 +0300 (IDT)

On Tue, 24 Jul 2001, Kenichi Handa wrote:

> >>    . For Right-To-Left scripts, reeordering from logical to visual
> >>      order, taking care of nested levels etc. as described in the
> >>      Unicode standard.
> Yah!  This is the most difficult thing, especially the
> nesting is.

I think I got it factored and nailed down in some prototype code I have.

> > We discussed similar issues related to bidirectional support with Gerd.  
> > The current state of thinking, as I understand it, is that the 
> > rearrangement of characters for display (i.e. conversion between the 
> > logical and visual order) should happen inside the functions which walk 
> > the buffer and supply the next character for display to the next layer 
> > (which generates glyphs).
> And, I'm not yet convinced that such a way is better than
> simply prefetching display elements and reordering them in
> advance.  :-)

We will see, once I finish coding and make some measurements.

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