[HarfBuzz] Mongolian Layout ?

[Ed Trager]

Hi, Behdad and everyone,

The fact that a Mongolian font and Mongolian layout is now available
in Vista should make it easier to test Mongolian layout in Harfbuzz.

So, I am just wondering if anyone has thought about providing and/or
testing/debugging Mongolian OpenType support in Harfbuzz yet?

Best - Ed Trager

---------- Forwarded message ----------
From: Andrew West <andrewcwest at gmail.com>
Date: Wed, Jun 18, 2008 at 8:49 AM
Subject: Re: About Mongolian characters in Unicode
To: Dagvadorj Galbadrakh <dagvadorj at gmail.com>
Cc: unicode at unicode.org


2008/6/17 Dagvadorj Galbadrakh <dagvadorj at gmail.com>:
>
> http://www.unicode.org/versions/Unicode5.0.0/ch13.pdf#G18211 is indeed a
> fantastic document. Those who prepared this document (I believe he/she is in
> the Unicode developing team) is a lot capable of Mongolian.

Thank you. I am responsible for the section on Mongolian, so if you
have any specific questions about how Unicode Mongolian works please
feel free to contact me off-list.

> As far as I understand from some documents including
> http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&item_id=UniscribeVersions,
> variation/form convergence is not available until Windows Vista i.e., it is
> not available on Windows XP and Office 2003 etc.

That is correct. Although theoretically Mongolian could work correctly
on Windows XP with a smart Mongolian font and a dumb rendering engine,
in practice the cleverness involved in rendering Mongolian correctly
is shared between the rendering engine (Uniscribe) and the font, and
only in Vista do you have both a version of Uniscribe that supports
Mongolian and a functional Mongolian font ("Mongolian Baiti").

Andrew