Re: file-exists-p on empty string

[Michael Albinus]

Robert Pluim <address@hidden> writes:

>> I believe the current behavior is correct. file-exists-p calls
>> expand-file-name, and (expand-file-name "") returns always
>> default-directory.
>
> Thatʼs not described in the doc-string though, so itʼs surprising
> behaviour.

Agreed, shall be documented at least. But I'm pretty sure there's code
in the wild which depends on this behavior. Maybe not explicitly, but
via calling file-exists-p with an empty string, which has been computed somehow.

I would expect this for example for Tramp. Do we want to change such
basic behavior?

Btw, several other basic file name operations behave similar. Try
(file-attributes "") or (file-readable-p "") or (file-directory-p "") .

> Robert

Best regards, Michael.