Re: other-window: say there is none if none

["Juanma Barranquero" <lekktu@gmail.com>]

On 11/14/06, Richard Stallman <rms@gnu.org> wrote:

>     -  Fselect_window (window, Qnil);
>     +  if (!EQ (window, old))
>     +    Fselect_window (window, Qnil);
>     +  else if (Finteractive_p () && EQ (window, Fnext_window (window, Qnil, Qnil)))
>     +    error ("No other windows");
>
> Displaying a message can't hurt
> when the command is called interactively, but this change would cause
> programs that call other-window to get errors where they didn't get
> errors before.

Hmmm. According to interactive-p's docstring:

  Return t if the function was run directly by user input.
  This means that the function was called with `call-interactively'
  (which includes being called as the binding of a key)
  and input is currently coming from the keyboard (not in keyboard macro),
  and Emacs is not running in batch mode (`noninteractive' is nil).

so if a program gets an error from a section of code protected by
interactive-p, it is trying *very hard* to fake being interactive, and
it gets what it asked for. :)

> This doesn't need to be changed now, so please leave it alone.

Of course. I was just trying to be helpful. Perhaps Dan wants to patch
his own Emacs :)

                    /L/e/k/t/u