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;;; ob-lisp.el --- org-babel functions for Common Lisp
;; Copyright (C) 2010, 2011 Free Software Foundation
;; Author: David T. O'Toole <dto@gnu.org>, Eric Schulte
;; Keywords: literate programming, reproducible research, lisp
;; Homepage: http://orgmode.org
;; Version: 7.4
;;; License:
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; Now working with SBCL for both session and external evaluation.
;;
;; This certainly isn't optimally robust, but it seems to be working
;; for the basic use cases.
;;; Requirements:
;; Requires SLIME (Superior Lisp Interaction Mode for Emacs.)
;; See http://common-lisp.net/project/slime/
;;; Code:
(require 'ob)
(require 'ob-ref)
(require 'ob-comint)
(require 'ob-eval)
(declare-function slime-eval "ext:slime" (sexp &optional package))
(declare-function slime-process "ext:slime" (&optional connection))
(declare-function slime-connected-p "ext:slime" ())
(defvar org-babel-default-header-args:lisp '()
"Default header arguments for lisp code blocks.")
(defcustom org-babel-lisp-cmd "sbcl --script"
"Name of command used to evaluate lisp blocks."
:group 'org-babel
:type 'string)
(defun org-babel-expand-body:lisp (body params)
"Expand BODY according to PARAMS, return the expanded body."
(let ((vars (mapcar #'cdr (org-babel-get-header params :var))))
(if (> (length vars) 0)
(concat "(let ("
(mapconcat
(lambda (var) (format "%S" (print `(,(car var) ',(cdr var)))))
vars "\n ")
")\n" body ")")
body)))
(defun org-babel-execute:lisp (body params)
"Execute a block of Lisp code with org-babel.
This function is called by `org-babel-execute-src-block'"
(require 'slime)
(message "executing Lisp source code block")
(let* ((session (org-babel-lisp-initiate-session
(cdr (assoc :session params))))
(result-type (cdr (assoc :result-type params)))
(full-body (org-babel-expand-body:lisp body params)))
(read
(if session
;; session evaluation
(save-window-excursion
(cadr (slime-eval `(swank:eval-and-grab-output ,full-body))))
;; external evaluation
(let ((script-file (org-babel-temp-file "lisp-script-")))
(with-temp-file script-file
(insert
;; return the value or the output
(if (string= result-type "value")
(format "(print %s)" full-body)
full-body)))
(org-babel-eval
(format "%s %s" org-babel-lisp-cmd
(org-babel-process-file-name script-file)) ""))))))
;; This function should be used to assign any variables in params in
;; the context of the session environment.
(defun org-babel-prep-session:lisp (session params)
"Prepare SESSION according to the header arguments specified in PARAMS."
(error "not yet implemented"))
(defun org-babel-lisp-initiate-session (&optional session)
"If there is not a current inferior-process-buffer in SESSION
then create. Return the initialized session."
(require 'slime)
(unless (string= session "none")
(save-window-excursion
(or (slime-connected-p)
(slime-process)))))
(provide 'ob-lisp)
;; arch-tag: 18086168-009f-4947-bbb5-3532375d851d
;;; ob-lisp.el ends here
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