Re: font-lock-fontify-block

[Gregory Heytings]

> >   (save-mark-and-excursion
> >     (if (and (not arg) font-lock-mode)
> >         (font-lock-fontify-region (point-min) (point-max))
> >       (font-lock-unfontify-region (point-min) (point-max))
> >       (font-lock-mode 'toggle))))
>
> Why do you need `save-mark-and-excursion`?

Because font-lock-fontify-region changes point.  It seems that it doesn't 
change mark, but I'm not sure it never will, so I've used 
save-mark-and-excursion just in case.