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org-mode/lisp/ob-maxima.el
2011-08-15 20:04:38 +02:00

80 lines
2.5 KiB
EmacsLisp

;;; ob-maxima.el --- org-babel functions for maxima evaluation
;; Copyright (C) 2009-2011 Free Software Foundation, Inc.
;; Author: Eric S Fraga
;; Eric Schulte
;; Keywords: literate programming, reproducible research, maxima
;; Homepage: http://orgmode.org
;; Version: 7.7
;; 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 maxima entries.
;;
;; This differs from most standard languages in that
;;
;; 1) there is no such thing as a "session" in maxima
;;
;; 2) we are generally only going to return output from maxima
;;
;; 3) we are adding the "cmdline" header argument
;;
;; 4) there are no variables
;;; Code:
(require 'ob)
(defvar org-babel-default-header-args:maxima '())
(defun org-babel-maxima-expand (body params)
"Expand a block of Maxima code according to its header arguments."
body)
(defun org-babel-execute:maxima (body params)
"Execute a block of Maxima entries with org-babel. This function is
called by `org-babel-execute-src-block'."
(message "executing Maxima source code block")
(let* ((result-params (split-string (or (cdr (assoc :results params)) "")))
(cmdline (cdr (assoc :cmdline params)))
(in-file (org-babel-temp-file "maxima-"))
(cmd (format "maxima --very-quiet -r 'batchload(%S)$' %s"
in-file cmdline)))
(with-temp-file in-file (insert body))
(message cmd)
((lambda (raw) ;; " | grep -v batch | grep -v 'replaced' | sed '/^$/d' "
(mapconcat
#'identity
(delq nil
(mapcar (lambda (line)
(unless (or (string-match "batch" line)
(string-match "^rat: replaced .*$" line)
(= 0 (length line)))
line))
(split-string raw "[\r\n]"))) "\n"))
(org-babel-eval cmd ""))))
(defun org-babel-prep-session:maxima (session params)
(error "Maxima does not support sessions"))
(provide 'ob-maxima)
;;; ob-maxima.el ends here