[HarfBuzz] HarfBuzz API design

[Ed Trager]

Hi, everyone,

>
> I don't have much to say about the actual font-related parts of the
> proposal. But I do think it's perhaps a bad idea to reuse the same
> buffer for text input and glyph output. Is memory that tight? Might a
> user not want to be able to query the text back out even after
> shaping?
>

I was wondering about this too : When selecting or highlighting shaped
text (to copy/paste/do something else to it) surely a shaper like
HarfBuzz needs to provide convenient access / mapping back to the
underlying Unicode text ?

- Ed