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74 lines
2.6 KiB
EmacsLisp
74 lines
2.6 KiB
EmacsLisp
;;; ob-ditaa.el --- org-babel functions for ditaa evaluation
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;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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;; Author: Eric Schulte
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;; Keywords: literate programming, reproducible research
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;; Homepage: http://orgmode.org
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;; Version: 0.01
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Org-Babel support for evaluating ditaa source code.
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;;
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;; This differs from most standard languages in that
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;;
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;; 1) there is no such thing as a "session" in ditaa
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;;
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;; 2) we are generally only going to return results of type "file"
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;;
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;; 3) we are adding the "file" and "cmdline" header arguments
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;;
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;; 4) there are no variables (at least for now)
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;;; Code:
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(require 'ob)
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(defvar org-babel-default-header-args:ditaa
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'((:results . "file") (:exports . "results"))
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"Default arguments to use when evaluating a ditaa source block.")
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(defun org-babel-expand-body:ditaa (body params &optional processed-params)
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"Expand BODY according to PARAMS, return the expanded body." body)
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(defun org-babel-execute:ditaa (body params)
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"Execute a block of Ditaa code with org-babel. This function is
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called by `org-babel-execute-src-block'."
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(message "executing Ditaa source code block")
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(let ((result-params (split-string (or (cdr (assoc :results params)) "")))
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(out-file (cdr (assoc :file params)))
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(cmdline (cdr (assoc :cmdline params)))
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(in-file (make-temp-file "org-babel-ditaa")))
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(unless (file-exists-p org-ditaa-jar-path)
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(error (format "Could not find ditaa.jar at %s" org-ditaa-jar-path)))
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(with-temp-file in-file (insert body))
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(message (concat "java -jar " org-ditaa-jar-path " " cmdline " " in-file " " out-file))
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(shell-command (concat "java -jar " org-ditaa-jar-path " " cmdline " " in-file " " out-file))
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out-file))
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(defun org-babel-prep-session:ditaa (session params)
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"This function does nothing as ditaa does not support
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sessions."
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(error "Ditaa does not support sessions"))
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(provide 'ob-ditaa)
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;; arch-tag: 492cd006-07d9-4fac-bef6-5bb60b48842e
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;;; ob-ditaa.el ends here
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