[luatex] How can I display arbitrary UNICODE characters?

[Javier Bezos]

> If that is not possible, another thing that would work for me would be
> to be able to associate character ranges to specific fonts. (eg. a
> font for the range of Chinese characters, another for Greek, ...).

Have a look at:

https://tex.stackexchange.com/questions/314397/defining-new-font-family-with-fontspec/314401#314401

Javier