Re: M-x grep should hang if no files specified

[Stefan Monnier]

> I do not like the idea of making it hang.
> It would be nice to detect the lack of file name arguments
> and output some sort of error message, but I am not sure
> how to detect that condition reliably.

It's very easy if done at the right place: inside GNU grep (rather than
inside Emacs).  And it sure should complain: the user specified a search in
0 files, so there's obviously something odd.


        Stefan