Re: nxml-mode does not remove its overlays

[David Kastrup <dak@gnu.org>]

Bastien <bzg@altern.org> writes:

> Stefan Monnier <monnier@iro.umontreal.ca> writes:
>
>> PS: To check if a buffer is widened, please use
>> (= (buffer-size) (- (point-max) (point-min)))
>
> This is something I've already been looking for several times.
>
> Maybe this could go in simple.el:
>
> (defun buffer-narrowed-p
>   "Return non-nil if the current buffer is narrowed."
>   (not (= (buffer-size)
> 	  (- (point-max) 
> 	     (point-min)))

Use /= rather than (not (= ... and a defsubst.  Of course, a defsubst
means that people are not free to change the buffer-size/point-min/max
semantics/invariants without having to recompile everything.

But I think I rather prefer if people have to work hard for a different
scenario...

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum