Re: cc-mode fontification feels random

[Stefan Monnier]

> Manually placing syntax-multiline is annoying and error-prone.
> Can't we instead keep track of what buffer positions were actually inspected?

Depends how the inspection is done, but of course that could be done.
Note that in the current uses of `syntax-propertize`, it's rather
unusual to need `syntax-multiline` (and it's fairly easy to add it in
most cases).  So while I agree with "annoying and error-prone" the
motivation to come up with some automatic way to do it has been
rather low.

In any case, I think this is a very secondary issue compared to the
issue of deciding what it is you want to do in that
"fontification" scan (and then how you want to do it, etc...).

If you want to do something fancier than `parse-partial-sexp`, then that
probably means inventing a new parsing engine, along with
corresponding grammars.  If so, using tree-sitter as that parsing engine
is probably one of the most attractive options since it lets us reuse
existing grammars.


        Stefan