Re: Uninformative comment in files.el

[Yoni Rabkin Katzenell <yoni-r@actcom.com>]

martin rudalics <rudalics@gmx.at> writes:

>> After reading that thread (which I neglected to do beforehand, sorry)
>
> Not your fault.  The TODO item should have included a link to that
> thread.
>
>> I still think that revert-buffer should remove all overlays and the mark.
>
> I think your patch is correct but am not sure about a number of related
> issues.  For example, is auto-reverting affected by your change and
> how?

Good point, nothing comes to mind but I'd have to check that carefully
to answer.

> Is `remove-overlays' the right function to remove all overlays in a
> buffer or should we provide a simpler function that doesn't check
> overlay boundaries?  
> Is `overlay-recenter' needed in this context?

Doing something like:

(save-excursion
  (overlay-recenter (point-max))
  (dolist (o (overlays-in (point-min) (point-max)))
    (delete-overlay o)))

... might be enough to efficiently and unconditionally nuke all the
overlays in a buffer. I have no idea if the difference between that and
the `remove-overlays' code actually matters.

As for the rest of the questions, they are so far removed from my simple
patch that I should definitely not attempt to answer unless I intend to
do some homework beforehand. They require a breadth of Emacs knowledge I
don't have at the moment.

Maybe I'll prepare a better patch after looking all that stuff up (if
nobody beats me to it).

-- 
   "Cut your own wood and it will warm you twice"