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;;; ob-emacs-lisp.el --- org-babel functions for emacs-lisp code evaluation
;; Copyright (C) 2009-2012 Free Software Foundation, Inc.
;; Author: Eric Schulte
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; This file is part of GNU Emacs.
;; GNU Emacs 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 of the License, or
;; (at your option) any later version.
;; GNU Emacs 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. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Org-Babel support for evaluating emacs-lisp code
;;; Code:
(require 'ob)
(eval-when-compile (require 'ob-comint))
(defvar org-babel-default-header-args:emacs-lisp
'((:hlines . "yes") (:colnames . "no"))
"Default arguments for evaluating an emacs-lisp source block.")
(declare-function orgtbl-to-generic "org-table" (table params))
(defun org-babel-expand-body:emacs-lisp (body params)
"Expand BODY according to PARAMS, return the expanded body."
(let* ((vars (mapcar #'cdr (org-babel-get-header params :var)))
(result-params (cdr (assoc :result-params params)))
(print-level nil) (print-length nil)
(body (if (> (length vars) 0)
(concat "(let ("
(mapconcat
(lambda (var)
(format "%S" (print `(,(car var) ',(cdr var)))))
vars "\n ")
")\n" body "\n)")
(concat body "\n"))))
(if (or (member "code" result-params)
(member "pp" result-params))
(concat "(pp " body ")") body)))
(defun org-babel-execute:emacs-lisp (body params)
"Execute a block of emacs-lisp code with Babel."
(save-window-excursion
((lambda (result)
(if (or (member "scalar" (cdr (assoc :result-params params)))
(member "verbatim" (cdr (assoc :result-params params))))
(let ((print-level nil)
(print-length nil))
(format "%S" result))
(org-babel-reassemble-table
result
(org-babel-pick-name (cdr (assoc :colname-names params))
(cdr (assoc :colnames params)))
(org-babel-pick-name (cdr (assoc :rowname-names params))
(cdr (assoc :rownames params))))))
(eval (read (format (if (member "output"
(cdr (assoc :result-params params)))
"(with-output-to-string %s)"
"(progn %s)")
(org-babel-expand-body:emacs-lisp body params)))))))
(provide 'ob-emacs-lisp)
;;; ob-emacs-lisp.el ends here
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