adding support for Maxima code blocks -- thanks to Eric Fraga

2 files changed, 81 insertions, 0 deletions

diff --git a/lisp/ob-maxima.el b/lisp/ob-maxima.el
new file mode 100644
index 0000000..06f6793
--- /dev/null
+++ b/lisp/ob-maxima.el
@@ -0,0 +1,80 @@
+;;; org-babel-maxima.el --- org-babel functions for maxima evaluation
+
+;; Copyright (c) 2009, 2010, 2011 Eric S Fraga, Eric Schulte
+
+;; Author: Eric S Fraga, Eric Schulte
+;; Keywords: literate programming, reproducible research, maxima
+;; Homepage: http://orgmode.org
+;; Version: 0.01
+
+;;; 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:
+
+;; 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)
+
+;; arch-tag: d86c97ac-7eab-4349-8d8b-302dd09779a8
+
+;;; org-babel-maxima.el ends here
diff --git a/lisp/org.el b/lisp/org.el
index 96ad8ff..ae0ef5e 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -164,6 +164,7 @@ requirements) is loaded."
 		 (const :tag "Javascript" js)
 		 (const :tag "Latex" latex)
 		 (const :tag "Ledger" ledger)
+		 (const :tag "Maxima" maxima)
 		 (const :tag "Matlab" matlab)
 		 (const :tag "Mscgen" mscgen)
 		 (const :tag "Ocaml" ocaml)