Add initial support for Wolfram Language

Partial fix for #223

* jupyter-wolfram-language.el: New file.

jupyter-wolfram-language.el

@@ -0,0 +1,44 @@
+;;; jupyter-wolfram-language.el --- Jupyter support for Wolfram -*- lexical-binding: t -*-
+
+;; Copyright (C) 2020 Nathaniel Nicandro
+
+;; Author: Nathaniel Nicandro <nathanielnicandro@gmail.com>
+;; Created: 12 Mar 2020
+
+;; 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, 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; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;; Support methods for integration with Wolfram Language
+
+;;; Code:
+
+(require 'jupyter-mime)
+
+(cl-defmethod jupyter-insert :around ((plist cons)
+                                      &context (jupyter-lang wolfram-language)
+                                      &optional metadata)
+  "Fontify docstrings after inserting inspect messages."
+  (cl-destructuring-bind (data metadata)
+      (jupyter-normalize-data plist metadata)
+    (when (and (equal (plist-get data :text/html) "")
+               (plist-get data :text/plain))
+      (plist-put data :text/html nil))
+    (cl-call-next-method data metadata)))
+
+(provide 'jupyter-wolfram-language)
+
+;;; jupyter-wolfram-language.el ends here