Re: Directory name completion blocks when it shouldn't

[Chris Moore <dooglus@gmail.com>]

Richard Stallman <rms@gnu.org> writes:

>     Is it feasible to fix read-file-name to obey the predicate
>     in the completion case?  It could be that the reason it doesn't
>     do so was the difficulty of implementing that case efficiently.
>
> Since no one else seemed interested in this, I did it.

I think you've introduced a new bug - 

  lisp/net/ange-ftp.el.gz line 3980:
    (defun ange-ftp-file-name-completion (file dir)
  is being called like:
    (ange-ftp-file-name-completion "" "/a:/" 'file-exists-p)

and

  lisp/net/tramp.el.gz line 2859:
    (defun tramp-handle-file-name-completion (filename directory)
  is being called like:
    (tramp-handle-file-name-completion "" "/a:/" 'file-exists-p)

in both cases the functions expect 2 arguments, and they're being
passed 3.

I reported this earlier today:

  Message-Id: <m2zm9km3rc.fsf@chrislap.local>
  To: emacs-pretest-bug@gnu.org
  Subject: TRAMP: error when completing filename

without realising that this was related to the recent "Directory name
completion blocks when it shouldn't" fix.