Re: patch: fix wrong-type-argument error in vc-registered

[Yoichi NAKAYAMA <yoichi@geiin.org>]

At Tue, 12 Oct 2004 12:14:39 -0400,
Stefan Monnier wrote:
> 
> > 2004-09-12  Stefan Monnier  <monnier@iro.umontreal.ca>
> 
> >         * vc-hooks.el (vc-ignore-dir-regexp): New var.
> 
> > overlooked that (file-name-directory file) may return nil.
> > Following is the patch against it.
> 
> Hmm... your patch looks fine, except that I don't understand why it's
> needed: I thought vc-registered is only ever called with an absolute file
> name, and (file-name-directory file) never returns nil if file is an
> absolute file name.
> 
> In which cases does it return nil on an absolute file name, or in which
> cases is vc-registered called with a non-absolute file name?

For example, mime-view.el in EMIKO module
http://cvs.m17n.org/cgi-bin/viewcvs/semi/mime-view.el?rev=1.150.2.33.2.38&only_with_tag=emiko-1_14&content-type=text/vnd.viewcvs-markup
calles set-auto-mode after setting buffer-file-name to non-absolute path
for highlighting.
-- 
Yoichi NAKAYAMA