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Re: Partly deferred font-locking?

From: Eli Zaretskii
Subject: Re: Partly deferred font-locking?
Date: Wed, 11 Jan 2023 21:58:03 +0200

> From: Michael Heerdegen <michael_heerdegen@web.de>
> Date: Wed, 11 Jan 2023 19:36:05 +0100
> Eli Zaretskii <eliz@gnu.org> writes:
> > I think it's basically impossible to know up front which parts of
> > fontifications will be expensive and which won't.  For starters, it
> > depends on the text around the window.
> Probably. OTOH, for some parts it's clear that they are always expensive
> (like for the nearly context insensitive dired buffer fontification).

My point is that your example is the exception rather than the rule.
Fontifications almost never access files or do any other fancy stuff
like that.  At least AFAIK.

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