[HarfBuzz] Basic question on how does Harfbuzz does Indic shaping

[Aravinda VK]

This thread may help.
http://lists.freedesktop.org/archives/harfbuzz/2012-December/002806.html


On Wed, Feb 6, 2013 at 4:33 PM, ratheesh pai <ratheeshpai at yahoo.com> wrote:

> Hi
>
> Can anyone please clarify few basic things about how harfbuzz engine does
> indic reshaping.
>
> 1. In unicode document there are some reshaping rules for indic languages
> http://www.unicode.org/versions/Unicode6.0.0/ch09.pdf
>
> 2. Also the open type font has  open type tables,  glyph substitution
> (gsub) /  glyph positioning (gpos) which also has some info embedded into
> the font itself how to get reshaped glyphs.
>
> Is Harfbuzz  reading the font and applying the GSUB rules, apply indic
> specific rules and reshaping ?.
> Also trying to understand how it knows glyphid  N  is  reshaped glyph
> char  C
>
> A very basic high level info would be helpful.
>
> thanks
>
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>


-- 
Regards
Aravinda | ಅರವಿಂದ
http://aravindavk.in
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