On Sat, Mar 24, 2018 at 12:15 PM, Arthur Reutenauer <arthur.reutena...@normalesup.org> wrote: > That’s correct, XeTeX uses Harfbuzz that is embedded in the engine; > that is to say that XeTeX itself can do the rendering and does not rely > on macro packages. There is regular talk of libraries or macro packages > that could interface Harfbuzz with LuaTeX, but nothing concrete has come > out of it (yet?).
https://www.guitex.org/home/en/numero-23-aprile-2017 Foreign Function Interface in LuaTeX Hans shown how to use luaffi to connect to (the shared lib version of ) harfbuzz plus a comparison of context vs harfbuzz vs uniscribe text shaping engines (experimental, and only under windows , but definitively something to develop further, being very useful for font development). -- luigi