[HarfBuzz] Optmizing code using Harfbuzz

[Tom Hacohen]

Dear all,

I'm using harfbuzz in my code, which obviously (as any other feature)
slowed things down. I'm adjusting my code to cache more harfbuzz info
but still shaping takes a long time. I wonder, are there any tricks to
avoid shaping? For instance, you can avoid using the bidi algorithm if a
text is not bidi (i.e if you detect it's a one directional text), are
there such cases with languages shaping?

Thanks,
Tom.