bug#66732: tree-sitter fontification doesn't update multi-line syntax reliably

[Stefan Monnier]

>> Anyway, could you try my patch? Like I said, I'm not sure if the
>> insufficient fontification I'm observing in c-ts-mode is due to the
>> problem with the solution, or due to the other redisplay-related problems
>> on my system.
>
> Yeah, it doesn't solve the problem in c-ts-mode regarding block comments.

I must admit I don't understand what the problem may be here.

> We might need to run (progn (force-parse) (update-ranges) (force-parse))
> before jit-lock-fontify-now and sytax-ppss.

Why would we need that?


        Stefan