bug#56682: Fix the long lines font locking related slowdowns

[Dmitry Gutov]

On 02.08.2022 10:34, Gregory Heytings wrote:
> > Perhaps someone will come up with further optimizations for the 
> > parse-partial-sexp implementation (without changing its behavior). 
> > Likely not by an order of a magnitude, but who knows.
>
> Do I understand correctly that you do not plan to work on this?  If so, 
> I'll add it to my TODO list.

Please go ahead. The C part of Emacs is far from my area of expertise.