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;;; ob-calc.el --- org-babel functions for calc code evaluation
;; Copyright (C) 2010 Free Software Foundation, Inc.
;; Author: Eric Schulte
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; Version: 7.3
;; 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 calc code
;;; Code:
(require 'ob)
(require 'calc)
(require 'calc-trail)
(eval-when-compile (require 'ob-comint))
(defvar org-babel-default-header-args:calc nil
"Default arguments for evaluating an calc source block.")
(defun org-babel-expand-body:calc (body params)
"Expand BODY according to PARAMS, return the expanded body." body)
(defun org-babel-execute:calc (body params)
"Execute a block of calc code with Babel."
(mapcar
(lambda (line)
(when (> (length line) 0)
(if (string= "'" (substring line 0 1))
(funcall (lookup-key calc-mode-map (substring line 1)) nil)
(calc-push-list
(list ((lambda (res)
(cond
((numberp res) res)
((listp res) (error "calc error \"%s\" on input \"%s\""
(cadr res) line))
(t res))
(if (numberp res) res (math-read-number res)))
(calc-eval line)))))))
(mapcar #'org-babel-trim
(split-string (org-babel-expand-body:calc body params) "[\n\r]")))
(save-excursion
(set-buffer (get-buffer "*Calculator*"))
(calc-eval (calc-top 1))))
(provide 'ob-calc)
;; arch-tag: 5c57a3b7-5818-4c6c-acda-7a94831a6449
;;; ob-calc.el ends here
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