Yank from system clipboard?

Yank from system clipboard?

[Elena]

Hello,

how do you non-interactively yank only the content of the system
clipboard, even when it's empty?

`clipboard-yank', whenever the system clipboard is empty, yanks the
last kill instead (at least on Windows).

Thanks.

Re: Yank from system clipboard?

[Marc Mientki]

Am 05.08.2010 12:25, schrieb Elena:
> Hello,
>
> how do you non-interactively yank only the content of the system
> clipboard, even when it's empty?
>
> `clipboard-yank', whenever the system clipboard is empty, yanks the
> last kill instead (at least on Windows).

Try with (current-kill 0).

HTH
Marc

Re: Yank from system clipboard?

[Elena]

Thanks for answering.

I've not understood the docs about `(current-kill 0)', however I've
tried:

(current-kill 0)
(clipboard-yank)

and Emacs still yanks the last kill.

What I'm missing?

Re: Yank from system clipboard?

[Marc Mientki]

Am 05.08.2010 13:36, schrieb Elena:
> Thanks for answering.
>
> I've not understood the docs about `(current-kill 0)', however I've
> tried:
>
> (current-kill 0)
> (clipboard-yank)
>
> and Emacs still yanks the last kill.
>
> What I'm missing?

I have probably not understand the task. What you want to do? Mark 
something outside of Emacs, copy (CTRL-C) and yank (paste) it in
Emacs buffer? But what means "non-interactively yank".

The (current-kill 0) puts content of system clipboard into Emacs
kill-ring and (clipboard-yank) puts this into buffer, or you can
access to this text via kill-ring variable with (car kill-ring).
Or (substring-no-properties (car kill-ring)) or directly
(substring-no-properties (current-kill 0)) - in case you don't want
text properties.

regards
Marc

Re: Yank from system clipboard?

[Elena]

On Aug 5, 3:00 pm, Marc Mientki <mien...@nonet.com> wrote:
> I have probably not understand the task. What you want to do? Mark
> something outside of Emacs, copy (CTRL-C) and yank (paste) it in
> Emacs buffer? But what means "non-interactively yank".

I want to select text outside of Emacs and then, by means of Emacs
client, I want to tell Emacs to grab it and insert it into a buffer.
Since it's throw-away text, I don't want to mess with files, so I have
thought the clipboard would do. However, selected text could also be
empty, that is, the clipboard will be empty. And here I'm stuck,
because whenever the clipboard is empty, (clipboard-yank) yanks the
last kill. (current-kill 0) does not change this (at least here: Emacs
23.1.1 + Windows XP).

Wait! I've thought about a workaround: telling Emacs beforehand
whether the clipboard is empty or not.

However, I'm still curious about why Emacs doesn't allow me to access
the system clipboard directly.

Thanks for your attention.

Re: Yank from system clipboard?

[Elena]

I've tried:

(insert (x-get-clipboard))

without success. I guess `x-get-clipboard' does not work on Windows.