Re: Hebrew xlation of Emacs tutorial

[James Cloos <cloos@jhcloos.com>]

>>>>> "David" == David Kastrup <dak@gnu.org> writes:

David> Oh, that is not as much an implication of bidi redisplay but rather of
David> missing display features of Emacs in general.  "composite character"
David> may be the wrong word, it is "compositing"?  Things like accents that
David> are supposed to overprint the following character.

David> Emacs does not cater for them yet, neither does it for antialiased
David> font display

Actually, the font-backend code in the unicode-2 branch handles aa and
simple-compositing just fine, in my experience.  At least when using
the xft backend (alone; I don't run with fallback to the x backend).
Handa-san's got that much working very well, though I did need to put
in some effort creating a reasonably complete xft fontset.

My understanding is that it also works well on the mac backend.

OTOH, I've had no luck with complex composition, such as for Brahmic
scripts.  

So the basic support for compositing seems to be there, it just needs
a full set of rules for the complex scripts.  Eg, everything that
pango can do.  (Pango is (or 'LGPL-2 'FreetypeLicence), so there
shouldn't be any problem using it as a primary reference for writing
the necessary lisp.)

-JimC
-- 
James Cloos <cloos@jhcloos.com>         OpenPGP: 1024D/ED7DAEA6