diff options
Diffstat (limited to 'contrib/lisp/ob-eukleides.el')
-rw-r--r-- | contrib/lisp/ob-eukleides.el | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/contrib/lisp/ob-eukleides.el b/contrib/lisp/ob-eukleides.el new file mode 100644 index 0000000..e25ed1c --- /dev/null +++ b/contrib/lisp/ob-eukleides.el @@ -0,0 +1,98 @@ +;;; ob-eukleides.el --- Org-babel functions for eukleides evaluation + +;; Copyright (C) 2010-2013 Free Software Foundation, Inc. + +;; Author: Luis Anaya +;; Keywords: literate programming, reproducible research +;; Homepage: http://orgmode.org + +;; This file is not part of GNU Emacs. + +;; 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 of the License, 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. If not, see <http://www.gnu.org/licenses/>. + +;;; Commentary: + +;; Org-Babel support for evaluating eukleides script. +;; +;; Inspired by Ian Yang's org-export-blocks-format-eukleides +;; http://www.emacswiki.org/emacs/org-export-blocks-format-eukleides.el + +;;; Requirements: + +;; eukleides | http://eukleides.org +;; eukleides | `org-eukleides-path' should point to the eukleides executablexs + +;;; Code: +(require 'ob) +(require 'ob-eval) + +(defvar org-babel-default-header-args:eukleides + '((:results . "file") (:exports . "results")) + "Default arguments for evaluating a eukleides source block.") + +(defcustom org-eukleides-path nil + "Path to the eukleides executable file." + :group 'org-babel + :type 'string) + +(defcustom org-eukleides-eps-to-raster nil + "Command used to convert EPS to raster. Nil for no conversion." + :group 'org-babel + :type '(choice + (repeat :tag "Shell Command Sequence" (string :tag "Shell Command")) + (const :tag "sam2p" "a=%s;b=%s;sam2p ${a} ${b}" ) + (const :tag "NetPNM" "a=%s;b=%s;pstopnm -stdout ${a} | pnmtopng > ${b}" ) + (const :tag "None" nil))) + +(defun org-babel-execute:eukleides (body params) + "Execute a block of eukleides code with org-babel. +This function is called by `org-babel-execute-src-block'." + (let* ((result-params (split-string (or (cdr (assoc :results params)) ""))) + (out-file (or (cdr (assoc :file params)) + (error "Eukleides requires a \":file\" header argument"))) + (cmdline (cdr (assoc :cmdline params))) + (in-file (org-babel-temp-file "eukleides-")) + (java (or (cdr (assoc :java params)) "")) + (cmd (if (not org-eukleides-path) + (error "`org-eukleides-path' is not set") + (concat (expand-file-name org-eukleides-path) + " -b --output=" + (org-babel-process-file-name + (concat + (file-name-sans-extension out-file) ".eps")) + " " + (org-babel-process-file-name in-file))))) + (unless (file-exists-p org-eukleides-path) + (error "Could not find eukleides at %s" org-eukleides-path)) + + (if (string= (file-name-extension out-file) "png") + (if org-eukleides-eps-to-raster + (shell-command (format org-eukleides-eps-to-raster + (concat (file-name-sans-extension out-file) ".eps") + (concat (file-name-sans-extension out-file) ".png"))) + (error "Conversion to PNG not supported. use a file with an EPS name"))) + + (with-temp-file in-file (insert body)) + (message "%s" cmd) (org-babel-eval cmd "") + nil)) ;; signal that output has already been written to file + +(defun org-babel-prep-session:eukleides (session params) + "Return an error because eukleides does not support sessions." + (error "Eukleides does not support sessions")) + +(provide 'ob-eukleides) + + + +;;; ob-eukleides.el ends here |