Is C-X ESC ESC malfunctioning?

Is C-X ESC ESC malfunctioning?

[d.henman]

Simple check.

While editting in the buffer, I checked the word count using

M-x count-words

This works well.  I then added some more text into the buffer and used the 
C-x ESC ESC  to rerun the command. "repeat-complex-command" 

But the following error is displayed in the mini-buffer.

"eval: Wrong type argument: integer-or-marker-p, nil"

I expected the C-x ESC ESC to perform without error just as if I entered the 
M-x count-words

What should be expected here?

Re: Is C-X ESC ESC malfunctioning?

[Xue Fuqiao]

On Wed, 03 Apr 2013 21:30:15 +0900
"d.henman" <dhenman@gmail.com> wrote:

> While editting in the buffer, I checked the word count using
> M-x count-words
> This works well.  I then added some more text into the buffer and used the 
> C-x ESC ESC  to rerun the command. "repeat-complex-command" 
> But the following error is displayed in the mini-buffer.
> "eval: Wrong type argument: integer-or-marker-p, nil"

count-words is an interactive function: (count-words START END)

It count words between START and END, if called interactively, START and
END are the start and end of the buffer (if there is no active region).
If called from Lisp, it returns the number of words between START and
END, *without printing any message*.

If you use `repeat-complex-command' to perform the last command, it will
use `(count-words nil nil)'.  nil is not an integer or a marker, so an
error arises.

> I expected the C-x ESC ESC to perform without error just as if I entered the 
> M-x count-words
> What should be expected here?

I'm not sure whether it is a bug or a feature here.

-- 
Xue Fuqiao
http://www.gnu.org/software/emacs/

RE: Is C-X ESC ESC malfunctioning?

[Drew Adams]

> If you use `repeat-complex-command' to perform the last 
> command, it will use `(count-words nil nil)'.  nil is not
> an integer or a marker, so an error arises.
> 
> > I expected the C-x ESC ESC to perform without error just as 
> > if I entered the M-x count-words What should be expected here?
> 
> I'm not sure whether it is a bug or a feature here.

A bug.

(called-interactively 'any) returns nil here, so the code then calls
`narrow-to-region' with START and END each nil.

Re: Is C-X ESC ESC malfunctioning?

[Xue Fuqiao]

On Wed, 3 Apr 2013 06:34:01 -0700
"Drew Adams" <drew.adams@oracle.com> wrote:

> > If you use `repeat-complex-command' to perform the last 
> > command, it will use `(count-words nil nil)'.  nil is not
> > an integer or a marker, so an error arises.
> > > I expected the C-x ESC ESC to perform without error just as 
> > > if I entered the M-x count-words What should be expected here?
> > I'm not sure whether it is a bug or a feature here.

> A bug.
> (called-interactively 'any) returns nil here, so the code then calls
> `narrow-to-region' with START and END each nil.

Thank you.  I have filed a bug report #14136.

-- 
Xue Fuqiao
http://www.gnu.org/software/emacs/