Re: [Emacs-diffs] emacs-25 f785ff4: Clarify documentation of before/after-change-functions

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Cc: Eli Zaretskii <address@hidden>
> Date: Tue, 09 Aug 2016 13:59:25 -0400
> 
> > -This variable holds a list of functions to call before any buffer
> > -modification.  Each function gets two arguments, the beginning and end
> > +This variable holds a list of functions to call before most buffer
> > +modifications.  Each function gets two arguments, the beginning and end
> 
> This looks wrong.  It should be called before *every* modification.
> syntax-ppss relies on this property, for example.
> And I can't think of any reason why we couldn't preserve that property.
> 
> In which case is it not run?

In some cases when we delete text.  And a few special cases you can
see in coding.c.