Re: cc-mode fontification feels random

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: Eli Zaretskii <eliz@gnu.org>,  dancol@dancol.org,  rudalics@gmx.at,
>   emacs-devel@gnu.org,  rms@gnu.org
> Date: Thu, 10 Jun 2021 17:06:31 -0400
> 
> > Well, I've fixed around 550 bugs in CC Mode in the last 20 years.
> > Identifying and reversing a subset of these to revert the performance
> > would be difficult.
> 
> Clearly  what would work better is to have a clear "test case" where the
> performance is poor.  Then we could investigate what is the cause of
> this particular problem and see how to fix this (and hopefully other
> similar) circumstance.

We already have, and we already did.  (It was even mentioned in this
discussion.)