Re: display word wrapping

[David Kastrup <dak@gnu.org>]

Juanma Barranquero <jmbarranquero@wke.es> writes:

> On 08 Jun 2004 11:54:49 +0200
> David Kastrup <dak@gnu.org> wrote:
> 
> > During the installation,
> > however, image-types is checked to exist and be non-nil.  If it isn't,
> > installation is aborted with a notice that you need an Emacs version
> > supporting images.
> > 
> > Will this jibe with the current implementation?
> 
> On any Emacs supporting images, image-types is going to be always
> non-nil, because it will at least containt '(pbm xbm), which are
> prebuilt.

Ok, then there is no objection from the view of preview-latex.  But
the documentation in the Elisp manual needs to get changed.

And since the old behavior was already documented, perhaps we should
not change image-type to hold something entirely different.

How about having it be a constant containing all image types
_potentially_ supported by that compilation?  The complete actual set,
if it was needed, could then be gotten with

(delq nil (mapcar (lambda(x) (and (image-type-available-p x) x))
  image-types))

Then image-types at least has _some_ meaning similar to before.  But
adding alist elements into it completely changes the meaning.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum