[HarfBuzz] New Indic standard?

[G Karunakar]

On Thu, Aug 20, 2009 at 10:02 AM, Shriramana Sharma<samjnaa at gmail.com> wrote:
> On 2009-Aug-19 22:40, Behdad Esfahbod wrote:
>> There's not much coding involved.  It would be most efficient if the local
>> people focus on gathering the Indic data, and those of us who know the code,
>> can focus on the coding part.
>
> Can you state precisely what "Indic data" is required? I presume basic
> support for the correct positioning of vowel matra-s already exists --
> there are reordrant matra-s and there are enclosing ones. I don't know
> whether support for consonant ligatures is to be provided by the
> renderer or is it totally taken care of by the font maker in OpenType
> programming? Off hand, the following is the list of aspects to be
> catered to while rendering Indic scripts with examples:
>
> 1. vowel matra-s:
>        a. following - AA, II in Deva
>        b. preceding - I in Deva
>        c. enclosing - O, OO, AU in Tamil and Malayalam
>        d. ligating - I and II in Tamil and Malayalam, many in Kannada and
> Telugu, RA + U/UU in Deva
>
> 2. ligatures
>
> 3. conjoining forms of types C1 and C2 (see
> http://unicode.org/review/pr-37.pdf as said before)
>
> 4. ligatures of consonants with virama (eyelash RA of Marathi, khanda ta
> of Bengali, NA of Telugu)
>
> 5. etc
>
> An exhaustive list must be created.
>
> Is there a wiki where we can contribute and collect detailed information
> on how the Indic scripts are to be laid out? (past participle of
> "layout" is "layouted"??) Can the IndLinux wiki be used for this purpose?

Yes, feel free to use it
Please see http://www.indlinux.org/wiki/index.php/IndicTesting for
some past thoughts on test data.

Please link up here what you add.
http://www.indlinux.org/wiki/index.php/Test_Data

Regards,
Karunakar