added the SASS css generation language (see http://sass-lang.com/)

lisp/langs/org-babel-sass.el

@@ -0,0 +1,68 @@
+;;; org-babel-sass.el --- org-babel functions for the sass css generation language
+
+;; Copyright (C) 2009 Eric Schulte
+
+;; Author: Eric Schulte
+;; Keywords: literate programming, reproducible research
+;; 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:
+
+;; For more information on sass see http://sass-lang.com/
+;;
+;; This accepts a 'file' header argument which is the target of the
+;; compiled sass.  The default output type for sass evaluation is
+;; either file (if a 'file' header argument was given) or scalar if no
+;; such header argument was supplied.
+;;
+;; A 'cmdline' header argument can be supplied to pass arguments to
+;; the sass command line.
+
+;;; Requirements:
+
+;; - sass-mode :: http://github.com/nex3/haml/blob/master/extra/sass-mode.el
+
+;;; Code:
+(require 'org-babel)
+(require 'sass-mode)
+
+(org-babel-add-interpreter "sass")
+
+(add-to-list 'org-babel-tangle-langs '("sass" "sass"))
+
+(defun org-babel-execute:sass (body params)
+  "Execute a block of Sass code with org-babel.  This function is
+called by `org-babel-execute-src-block'."
+  (message "executing Sass source code block")
+  (let* ((result-params (split-string (or (cdr (assoc :results params)) "")))
+         (file (cdr (assoc :file params)))
+         (out-file (or file (make-temp-file "org-babel-sass-out")))
+         (cmdline (cdr (assoc :cmdline params)))
+         (in-file (make-temp-file "org-babel-sass-in"))
+         (cmd (concat "sass " (or cmdline "") in-file " " out-file)))
+    (with-temp-file in-file (insert body)) (shell-command cmd)
+    (or file (with-temp-buffer (insert-file-contents out-file) (buffer-string)))))
+
+(defun org-babel-prep-session:sass (session params)
+  (error "Sass does not support sessions"))
+
+(provide 'org-babel-sass)
+;;; org-babel-sass.el ends here

org-babel.org

@@ -2635,7 +2635,7 @@ This is currently working only with emacs lisp as in the following
 example in the [[* emacs lisp source reference][emacs lisp source reference]].
 
 
-** TODO Add languages [10/14]
+** TODO Add languages [11/15]
 I'm sure there are many more that aren't listed here.  Please add
 them, and bubble any that you particularly care about up to the top.
 
@@ -2702,6 +2702,23 @@ Things left to do
 | "information_schema" |
 | "test"               |
 
+*** DONE SASS
+Sass is a very nice extension of CSS, which is much nicer to read and
+write (see [[http://sass-lang.com/][sass-lang]]).
+
+#+srcname: sass-example
+#+begin_src sass :file stylesheet.css :results file
+  #me
+    position: absolute
+    top: 1em
+    left: 1em
+    .head
+      text-align: center
+#+end_src
+
+#+resname:
+[[file:stylesheet.css][stylesheet.css]]
+
 *** DONE CSS
 trivial [[file:lisp/langs/org-babel-css.el][org-babel-css.el]]