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| | ;;; ob-ditaa.el --- org-babel functions for ditaa evaluation
;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
;; Author: Eric Schulte
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; Version: 0.01
;; 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:
;; Org-Babel support for evaluating ditaa source code.
;;
;; This differs from most standard languages in that
;;
;; 1) there is no such thing as a "session" in ditaa
;;
;; 2) we are generally only going to return results of type "file"
;;
;; 3) we are adding the "file" and "cmdline" header arguments
;;
;; 4) there are no variables (at least for now)
;;; Code:
(require 'ob)
(defvar org-babel-default-header-args:ditaa
'((:results . "file") (:exports . "results"))
"Default arguments to use when evaluating a ditaa source block.")
(defun org-babel-expand-body:ditaa (body params &optional processed-params)
"Expand BODY according to PARAMS, return the expanded body." body)
(defvar org-ditaa-jar-path)
(defun org-babel-execute:ditaa (body params)
"Execute a block of Ditaa code with org-babel. This function is
called by `org-babel-execute-src-block'."
(message "executing Ditaa source code block")
(let ((result-params (split-string (or (cdr (assoc :results params)) "")))
(out-file (cdr (assoc :file params)))
(cmdline (cdr (assoc :cmdline params)))
(in-file (make-temp-file "org-babel-ditaa")))
(unless (file-exists-p org-ditaa-jar-path)
(error "Could not find ditaa.jar at %s" org-ditaa-jar-path))
(with-temp-file in-file (insert body))
(message (concat "java -jar " org-ditaa-jar-path " " cmdline " " in-file " " out-file))
(shell-command (concat "java -jar " (shell-quote-argument org-ditaa-jar-path) " " cmdline " " in-file " " out-file))
out-file))
(defun org-babel-prep-session:ditaa (session params)
"This function does nothing as ditaa does not support
sessions."
(error "Ditaa does not support sessions"))
(provide 'ob-ditaa)
;; arch-tag: 492cd006-07d9-4fac-bef6-5bb60b48842e
;;; ob-ditaa.el ends here
|