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

[Tobias C. Rittweiler]

Stefan Monnier <address@hidden> writes:

> > Alternatively `font-lock-default-fontify-region' could be made
> > smarter in so far as it could check whether a pass actually changed
> > font-lock-beg and font-lock-end, and if not, would not try another
> > pass.
>
> If a function doesn't actually change font-lock-{beg/end}, it should
> return nil.

Right, my request is to test for this assertion explicitly.

  -T.