[HarfBuzz] Auto Fractions vs VULGAR FRACTION characters

[Khaled Hosny]

On Thu, Dec 26, 2013 at 04:14:10PM -0800, Roozbeh Pournader wrote:
> Well, the source of the problem here is trying to show something that has a
> compatibility decomposition with its decomposition. I believe compatibility
> decomposition should be ignored when displaying stuff. If the font doesn't
> have a glyph for trademark symbol, I definitely prefer to see A™ rendered
> as A{tofu}, instead of ATM. The first tells me something is unsupported.
> The second tells me something is OK, when it's not.

+1 (though most HarfBuzz clients seem to not use it anyway, so not much
of an issue in practice).
 
Regards,
Khaled