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[Orgmode] Re: [PATCH] [babel] Add option to display process buffer when

From: Julien Barnier
Subject: [Orgmode] Re: [PATCH] [babel] Add option to display process buffer when editing R source code blocks
Date: Tue, 13 Apr 2010 11:46:26 +0200
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/23.1.91 (gnu/linux)

Hi Dan,

> Could I suggest a slightly different route? We already have the
> functions org-babel-switch-to-session and org-babel-load-session, which
> work for any language. These switch to the process buffer, like your
> patch does. I agree with you about wanting a function that ends up
> displaying the process buffer and the code edit buffer. I have the
> following personal function which achieves that:
> (defun dan/org-babel-switch-to-code-with-session (&optional arg)
>     "Switch to code edit buffer and display session"
>     (interactive "P")
>     (save-excursion
>       (org-babel-switch-to-session arg nil))
>     (org-edit-src-code))
> Could you experiment with these functions, and see if they are
> satisfactory, amd let us know if we can improve things? E.g. we could
> include a function like my one above to display both the session with
> the edit-buffer.

Ah, yes, I didn't notice the existence of
org-babel-switch-to-session. It is indeed much cleaner that my patch

The "features" I would miss compared top my quick and dirty-function
is the fact that the source code buffer is displayed above the session
one (I really don't like having the session above), the fact that when
I quit the source code editing, the session buffer is closed too, and
the ability to keep org file buffer open with the source and the
session ones.

I can reproduce the behavios I was looking for with the following
modifications to your function. But this is another quick and dirty
hack, and I can't say if it cuold meet the needs of others :

(defun dan/org-babel-switch-to-code-with-session (&optional arg keep-org)
    "Switch to code edit buffer and display session. If keep-org is
    non nil, keep the org file buffer open, too."
    (interactive "P")
    (let ((info (org-babel-get-src-block-info)))
      (if keep-org
      (org-babel-switch-to-session arg info))
      (other-window -1)))

I think I'll stick with this function for the moment. 

> Note that o-b-load-session additionally loads the body of the block into
> the session; and that switch-session, if called with a prefix arg,
> assigns variables from the header args in the session[1]. These are
> bound to M-down and M-up when on a code block.

Ah yes, didn't know these ones either...

> Oh, and also... org-babel-switch-to-session and org-babel-load-session
> use the emacs function pop-to-buffer. That means that there's all sorts
> of extra control you can have over how the windows are displayed. See
> the documentation for things like pop-to-buffer, pop-up-windows,
> split-window-sensibly, special-display-buffer-names, etc.

Yes, I feel I have some more customization opportunities lying in
these documentation pages... 

Thanks for your detailed answer !


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