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;;; ob-mathematica.el --- org-babel functions for Mathematica evaluation
;; Copyright (C) 2014 Yi Wang
;; Authors: Yi Wang
;; Keywords: literate programming, reproducible research
;; Homepage: https://github.com/tririver/wy-els/blob/master/ob-mathematica.el
;; Distributed under the GNU GPL v2 or later
;; Org-Babel support for evaluating Mathematica source code.
;;; Code:
(require 'ob)
(require 'ob-ref)
(require 'ob-comint)
(require 'ob-eval)
(declare-function org-trim "org" (s &optional keep-lead))
;; Optionally require mma.el for font lock, etc
(require 'mma nil 'noerror)
(add-to-list 'org-src-lang-modes '("mathematica" . "mma"))
(defvar org-babel-tangle-lang-exts)
(add-to-list 'org-babel-tangle-lang-exts '("mathematica" . "m"))
(defvar org-babel-default-header-args:mathematica '())
(defvar org-babel-mathematica-command "MathematicaScript -script"
"Name of the command for executing Mathematica code.")
(defvar org-babel-mathematica-command-alt "math -noprompt"
"Name of the command for executing Mathematica code.")
(defun org-babel-expand-body:mathematica (body params)
"Expand BODY according to PARAMS, return the expanded body."
(let ((vars (org-babel--get-vars params)))
(concat
(mapconcat ;; define any variables
(lambda (pair)
(format "%s=%s;"
(car pair)
(org-babel-mathematica-var-to-mathematica (cdr pair))))
vars "\n") "\nPrint[\n" body "\n]\n")))
(defun org-babel-execute:mathematica (body params)
"Execute a block of Mathematica code with org-babel. This function is
called by `org-babel-execute-src-block'"
(let* ((result-params (cdr (assq :result-params params)))
(full-body (org-babel-expand-body:mathematica body params))
(tmp-script-file (org-babel-temp-file "mathematica-"))
(cmd org-babel-mathematica-command))
;; actually execute the source-code block
(with-temp-file tmp-script-file (insert full-body))
;; (with-temp-file "/tmp/dbg" (insert full-body))
((lambda (raw)
(if (or (member "code" result-params)
(member "pp" result-params)
(and (member "output" result-params)
(not (member "table" result-params))))
raw
(org-babel-script-escape (org-trim raw))))
(org-babel-eval (concat cmd " " tmp-script-file) ""))))
(defun org-babel-prep-session:mathematica (session params)
"This function does nothing so far"
(error "Currently no support for sessions"))
(defun org-babel-prep-session:mathematica (session body params)
"This function does nothing so far"
(error "Currently no support for sessions"))
(defun org-babel-mathematica-var-to-mathematica (var)
"Convert an elisp value to a Mathematica variable.
Convert an elisp value, VAR, into a string of Mathematica source code
specifying a variable of the same value."
(if (listp var)
(concat "{" (mapconcat #'org-babel-mathematica-var-to-mathematica var ", ") "}")
(format "%S" var)))
(provide 'ob-mathematica)
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