Re: [babel] some lisp/slime progress

["Eric Schulte" <schulte.eric@gmail.com>]

Erik Iverson <eriki@ccbr.umn.edu> writes:

> Hello,
>
> I recently posted on the inability of ob-lisp.el to
> submit multiple forms to a running CL session and return
> the result.
>
> http://permalink.gmane.org/gmane.emacs.orgmode/37325
>
> I have made some progress in fixing this, but it *required
> defining a new function in SLIME, so I do not post this
> as a patch to org-mode, since it depends on more than
> org-mode*.  I don't know if this is something that truly
> belongs in SLIME, so I may follow-up on that mailing list.
>

It looks like you've inserted an orgmode specific function into slime?
Maybe your slime patch could be changed to the introduction of a new
hook to which this org-mode specific function could be bound?  I imagine
the slime mailing list would know the best solution here.

>
> NB: this only works when :session is specified.
>

I think it is reasonable for the :session header argument to be added to
an `org-babel-default-header-args:lisp' variable defined in ob-lisp.
That would remove the need to constantly specify :session.  This is
similar to the ob-clojure approach, which by default always uses a slime
session.

>
> In SLIME swank.lisp, I define:
>
> (defslimefun interactive-eval-region-orgmode (string)
>    (with-buffer-syntax ()
>      (with-retry-restart (:msg "Retry SLIME interactive evaluation request.")
>        (list (format nil "~{~S~^~%~}" (eval-region string))))))
>
>
> Then, in ob-lisp.el, apply the following patch.
>
> diff --git a/lisp/ob-lisp.el b/lisp/ob-lisp.el
> index 600b79e..2980cc8 100644
> --- a/lisp/ob-lisp.el
> +++ b/lisp/ob-lisp.el
> @@ -78,7 +78,11 @@ This function is called by `org-babel-execute-src-block'"
>        (if session
>            ;; session evaluation
>            (save-window-excursion
> -           (cadr (slime-eval `(swank:eval-and-grab-output ,full-body))))
> +	   (with-temp-buffer
> +	     (insert full-body)
> +	     (slime-eval
> +	      `(swank:interactive-eval-region-orgmode
> +	   	,(buffer-substring-no-properties (point-min) (point-max))))))
>          ;; external evaluation
>          (let ((script-file (org-babel-temp-file "lisp-script-")))
>            (with-temp-file script-file
>
> Then, things like the following work, where I assume you've already
> started M-x slime.
>
> #+begin_src emacs-lisp :session
>
> (defvar test1 "test1 value")
> (defvar test2 "test2 value")
> test2
>
> #+end_src
>
> #+results:
> : test2 value
>

Great, I look forward to playing with this as soon as I find some
time...

Thanks for sharing -- Eric

>
>
> Best Regards,
> --Erik Iverson