;;; ob-shen.el --- org-babel functions for Shen ;; Copyright (C) 2010-2012 Free Software Foundation, Inc. ;; Author: Eric Schulte ;; Keywords: literate programming, reproducible research, shen ;; Homepage: http://orgmode.org ;; 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: ;; Currently this only works using session evaluation as there is no ;; defined method for executing shen code outside of a session. ;;; Requirements: ;; - shen-mode and inf-shen will soon be available through the GNU ;; elpa, however in the interim they are available at ;; https://github.com/eschulte/shen-mode ;;; Code: (require 'ob) (declare-function shen-eval-defun "ext:inf-shen" (&optional and-go)) (defvar org-babel-default-header-args:shen '() "Default header arguments for shen code blocks.") (defun org-babel-expand-body:shen (body params) "Expand BODY according to PARAMS, return the expanded body." (let ((vars (mapcar #'cdr (org-babel-get-header params :var)))) (if (> (length vars) 0) (concat "(let " (mapconcat (lambda (var) (format "%s %s" (car var) (org-babel-shen-var-to-shen (cdr var)))) vars " ") body ")") body))) (defun org-babel-shen-var-to-shen (var) "Convert VAR into a shen variable." (if (listp var) (concat "[" (mapconcat #'org-babel-ruby-var-to-ruby var " ") "]") (format "%S" var))) (defun org-babel-execute:shen (body params) "Execute a block of Shen code with org-babel. This function is called by `org-babel-execute-src-block'" (require 'inf-shen) (let* ((result-type (cdr (assoc :result-type params))) (result-params (cdr (assoc :result-params params))) (full-body (org-babel-expand-body:shen body params))) ((lambda (results) (if (or (member 'scalar result-params) (member 'verbatim result-params)) results (condition-case nil (org-babel-script-escape results) (error results)))) (with-temp-buffer (insert full-body) (call-interactively #'shen-eval-defun))))) (provide 'ob-shen) ;;; ob-shen.el ends here