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

[Stefan Monnier]

Eli Zaretskii [2022-08-16 17:14:35] wrote:
>> >> >> The locked narrowing prevents that "last mile", sadly.
>> >> > Nonsense, it doesn't prevent any such things.
>> >> > Let's not exaggerate when we try to make a point, okay?
>> >> Why nonsense?
>> > Because it takes no effort to override it and then try changes in any
>> > major mode.
>> AFAIK it requires recompiling Emacs
> No, it doesn't.

I missed it then: you're saying that I can make nlinum-mode override the
locked narrowing to find the real current line number without having to
recompile Emacs?


        Stefan