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Re: [PATCH] Remove obsolete fast-lock and lazy-lock libraries

From: Alan Mackenzie
Subject: Re: [PATCH] Remove obsolete fast-lock and lazy-lock libraries
Date: Sun, 9 Aug 2020 16:40:58 +0000

Hello, Stefan.

On Sun, Aug 09, 2020 at 09:28:47 -0700, Stefan Kangas wrote:
> Jeff Norden <jnorden@tntech.edu> writes:

> >                             If someone has an ancient .emacs that contains
> >   (setq font-lock-support-mode 'fast-lock-mode)
> > would the best thing be to just use jit-lock-mode instead?  If I'm reading
> > the patch correctly, it would make setting the support-mode to fast-lock
> > equivalent to setting it to nil.

> Sure, that makes sense. I could change that before pushing.

This doesn't make sense, I think.  font-lock-support-mode is a function,
and if a user has this set to a non-existent function, the correct
response is surely to tell her with an error message, rather than
executing a different function.

The only reason anybody nowadays would set f-l-s-m to 'fast-lock-mode
would be for debugging.  Let's not make that debugging any more
difficult than it already is.

> Best regards,
> Stefan Kangas

Alan Mackenzie (Nuremberg, Germany).

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