Re: patch: write-file to arbitrary target directory

[Eduard Wiebe <usenet@pusto.de>]

Richard Stallman <rms@gnu.org> writes:

> The change looks useful, but there may be a problem.
>
>     ! 	   (let ((dir  (file-name-directory (buffer-name)))
>     ! 		 (file (file-name-nondirectory (buffer-name))))
>
> DIR will nearly always be nil, because buffer names normally
> do not include directory parts.

Right. With 'ido' package user can create buffers with arbitrary names.

> Thus, not using default-directory here
>
>     ! 	     (read-file-name "Write file: "
>     ! 			     dir (expand-file-name file dir) nil file)))
>
> seems like a bug. 

I am not sure.

> What is the aim of that particular change?

Consider the case above, buffer has directory parts in name. By
calling 'write-file' i expect a proposal of directory name with these
directory parts of buffer name.

And if DIR is nil, read-file-name use 'default-directory' anyway.
(If i am not mistaken.)

> Aside from that, it needs changes in the manual (maybe in more than
> one place).

I try to identify these.

-- 
Eduard Wiebe