Re: What variable says that the buffer is in narrowed state?

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> I expected to find some `buffer-narrowed-p' variable.  Is there
>> something like this?  The mode-line is able to display this bit 
>> of information, so I guess it might somehow be accessible.

> If there were such a thing, it should probably be a function rather
> than a variable.  Doesn't seem there is one, so I wrote it for you:

> (defun buffer-narrowed-p ()
>   "Return t if buffer is narrowed, nil otherwise."
>   (or (> (point-min) 1)
>       (< (point-max) (buffer-size))))

Sometimes you can't avoid assuming that buffer positions start at 1, but
that's rare.  Even in the above case, for example, you can simply check:

   (defun buffer-narrowed-p ()
     (> (buffer-size) (- (point-max) (point-min))))


-- Stefan