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| | ;;; ob-sclang.el --- SCLang support for Org-mode Babel
;;; -*- coding: utf-8 -*-
;; Copyright (C) 2017-2021 Free Software Foundation, Inc.
;; Authors: stardiviner <numbchild@gmail.com>
;; Package-Version: 0.1
;; Keywords: babel sclang
;; This file is not 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:
;; `ob-sclang' requires `sclang' from SuperCollider.
;; Usually SuperCollider dependencies for Emacs are at /usr/share/emacs/site-lisp/SuperCollider/
;; You can install SuperCollider following this article:
;; https://github.com/supercollider/supercollider#building-the-source-code
;; Usage:
;; Support to evaluate sclang Org-mode src block with function `sclang-eval-string'.
;; For example:
;; #+BEGIN_SRC sclang :results none
;; "Hello World".postln;
;; #+END_SRC
;;
;; *NOTE* Temporary output to org-babel result output is not supported.
;; Because `sclang-eval-string' will send output to Sclang Post Buffer.
;; And command line `sclang' execute will not automatically stop after finished execution.
;;
;; #+BEGIN_SRC sclang :results none
;; // modulate a sine frequency and a noise amplitude with another sine
;; // whose frequency depends on the horizontal mouse pointer position
;; {
;; var x = SinOsc.ar(MouseX.kr(1, 100));
;; SinOsc.ar(300 * x + 800, 0, 0.1)
;; +
;; PinkNoise.ar(0.1 * x + 0.1)
;; }.play;
;; #+END_SRC
;;; Code:
;;; ----------------------------------------------------------------------------
(require 'org)
(require 'ob)
(require 'sclang nil t)
(defgroup ob-sclang nil
"org-mode blocks for SuperCollider SCLang."
:group 'org)
;;;###autoload
(defun org-babel-execute:sclang (body params)
"Org-mode Babel sclang hook for evaluate `BODY' with `PARAMS'."
(unless (or (equal (buffer-name) sclang-post-buffer)
(sclang-get-process))
(sclang-start))
(sclang-eval-string body t))
(defvar org-babel-default-header-args:sclang nil)
(setq org-babel-default-header-args:sclang
'((:session . "*SCLang:Workspace*")
;; TODO: temporary can't find way to let sclang output to stdout for org-babel.
(:output . "none")))
(eval-after-load 'org
'(progn
(add-to-list 'org-src-lang-modes '("sclang" . sclang))))
;;; ----------------------------------------------------------------------------
(provide 'ob-sclang)
;;; ob-sclang.el ends here
|