[HarfBuzz] Thai text render issue in Android L

[James Clark]

กระฎุมพี is in the Royal Institute dictionary and is actually used (e.g.
http://th.wikipedia.org/wiki/%E0%B8%8A%E0%B8%99%E0%B8%8A%E0%B8%B1%E0%B9%89%E0%B8%99%E0%B8%81%E0%B8%A3%E0%B8%B0%E0%B8%8E%E0%B8%B8%E0%B8%A1%E0%B8%9E%E0%B8%B5).
So if a font doesn't handle SARA U and SARA UU (and PHINTHU) beneath
consonants DO CHADA and TO PATAK, I would say that is a font bug.

James

On Tue, Nov 11, 2014 at 11:59 PM, Ed Trager <ed.trager at gmail.com> wrote:

> 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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>>
>>
>
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