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Re: `font-lock-extend-region-functions' vs. `font-lock-extend-after-chan

From: Tobias C. Rittweiler
Subject: Re: `font-lock-extend-region-functions' vs. `font-lock-extend-after-change-region-function'
Date: Sat, 16 May 2009 14:26:05 +0200
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/23.0.60 (gnu/linux)

"Tobias C. Rittweiler" <address@hidden> writes:

> Hi,
> what is the difference between the variables
>   `font-lock-extend-region-functions' 
> and 
>   `font-lock-extend-after-change-region-function' ?

Another question: The latter variable requires that its function
preverse match-data.

Looking at how the first variable is used, I don't think the same is
true for the first variable, right? (Perhaps it docstring could
explicitly say that its functions do not need to save match-data or


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