[HarfBuzz] Thai text render issue in Android L

[Ed Trager]

Hi,

To the best of my knowledge, it seems extremely unlikely that U+0E0E THAI
CHARACTER DO CHADA would have U+0E39 THAI CHARACTER SARA UU ( or U+0E38
THAI CHARACTER SARA U for that matter ) appear below it.

I can't think of any Central Thai words that would have that kind of
spelling; and it seems even more unlikely that any of the minority
languages would use DO CHADA at all.

Therefore, it seems very likely that the font designers did not specify an
anchoring position point for SARA U or SARA UU appearing below consonants
such as DO CHADA or U+0E0F THAI CHARACTER TO PATAK.

- Ed


On Mon, Nov 10, 2014 at 10:16 PM, Nguyễn Đức An <annd1985 at gmail.com> wrote:

> Dear Harfbuzz developers,
> We have an issue with Thai text render in Android L. When input U+0E0E and
> U+0E39, it displays wrong (please see the attach screen).
> I checked Thai Noto font (Google font) and Samsung Thai (Samsung font),
> issue happens with both of them.
> As i read the source of Harfbuzz, Thai reshaping only does separate SARA
> AM to NIKHAHIT & SARAA. So maybe the problem is not came from Harfbuzz.
> Any help is welcome.
> Thank you.
>
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