lisp/ob-maxima.el

   1 ;;; org-babel-maxima.el --- org-babel functions for maxima evaluation
   2
   3 ;; Copyright (c) 2009, 2010, 2011 Eric S Fraga, Eric Schulte
   4
   5 ;; Author: Eric S Fraga, Eric Schulte
   6 ;; Keywords: literate programming, reproducible research, maxima
   7 ;; Homepage: http://orgmode.org
   8 ;; Version: 0.01
   9
  10 ;;; License:
  11
  12 ;; This program is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation; either version 3, or (at your option)
  15 ;; any later version.
  16 ;;
  17 ;; This program is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21 ;;
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  25 ;; Boston, MA 02110-1301, USA.
  26
  27 ;;; Commentary:
  28
  29 ;; Org-Babel support for evaluating maxima entries.
  30 ;;
  31 ;; This differs from most standard languages in that
  32 ;;
  33 ;; 1) there is no such thing as a "session" in maxima
  34 ;;
  35 ;; 2) we are generally only going to return output from maxima
  36 ;;
  37 ;; 3) we are adding the "cmdline" header argument
  38 ;;
  39 ;; 4) there are no variables
  40
  41 ;;; Code:
  42 (require 'ob)
  43
  44 (defvar org-babel-default-header-args:maxima '())
  45
  46 (defun org-babel-maxima-expand (body params)
  47   "Expand a block of Maxima code according to its header arguments."
  48   body)
  49
  50 (defun org-babel-execute:maxima (body params)
  51   "Execute a block of Maxima entries with org-babel.  This function is
  52 called by `org-babel-execute-src-block'."
  53   (message "executing Maxima source code block")
  54   (let* ((result-params (split-string (or (cdr (assoc :results params)) "")))
  55          (cmdline (cdr (assoc :cmdline params)))
  56          (in-file (org-babel-temp-file "maxima-"))
  57          (cmd (format "maxima --very-quiet -r 'batchload(%S)$' %s"
  58                       in-file cmdline)))
  59     (with-temp-file in-file (insert body))
  60     (message cmd)
  61     ((lambda (raw) ;; " | grep -v batch | grep -v 'replaced' | sed '/^$/d' "
  62        (mapconcat
  63         #'identity
  64         (delq nil
  65               (mapcar (lambda (line)
  66                         (unless (or (string-match "batch" line)
  67                                     (string-match "^rat: replaced .*$" line)
  68                                     (= 0 (length line)))
  69                           line))
  70                       (split-string raw "[\r\n]"))) "\n"))
  71      (org-babel-eval cmd ""))))
  72
  73 (defun org-babel-prep-session:maxima (session params)
  74   (error "Maxima does not support sessions"))
  75
  76 (provide 'ob-maxima)
  77
  78 ;; arch-tag: d86c97ac-7eab-4349-8d8b-302dd09779a8
  79
  80 ;;; org-babel-maxima.el ends here