[Fontconfig] No FC_FONT_FEATURES?

[Lawrence D'Oliveiro]

On Thu, 11 Jun 2020 14:36:28 +0900, Akira TAGOH wrote:

> Do we want to cache them? even though it is related to the rendering
> options much more. dunno how that helps to choose a font ...

My example creates an SQLite database you can use to query which fonts
support which feature(s). I thought it was interesting to see how
widespread (or not) OpenType support has become, and to what levels.