bug#14931: 24.3; marking extensions with dired-x

[Glenn Morris]

"Dieter Wilhelm, H." wrote:

>> Sorry, I did only consider the interactive approach with 'C-* .'!
>
> I meant '* .' not 'C-* .' of course...

(Why can't you just call it twice?)

>> Since I think this is more relevant/frequent to the dired usage as the
>> purely programatical one. Idealy one would combine both! :-)

In that case, you are asking for a new feature. Up to now, the only
documentation (besides a comment in the source) of this "takes a list"
option is in the dired-x manual, which says:

    When called from Lisp, EXTENSION may also be a list of extensions
 
>> With my diff a simple sequence in the mini-buffer like 'png jpg' is
>> working, though not with the original code...

Firstly, note the documentation says:

  A `.' is *not* automatically prepended to the string entered.

Secondly, what if someone wants to mark extensions with spaces, eg files
named "*.my extension"?