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+;;; ob-org.el --- Babel Functions for Org Code Blocks -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2010-2021 Free Software Foundation, Inc.
+
+;; Author: Eric Schulte
+;; Keywords: literate programming, reproducible research
+;; Homepage: https://orgmode.org
+
+;; 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 <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This is the simplest of code blocks, where upon evaluation the
+;; contents of the code block are returned in a raw result.
+
+;;; Code:
+(require 'ob)
+
+(declare-function org-export-string-as "ox"
+ (string backend &optional body-only ext-plist))
+
+(defvar org-babel-default-header-args:org
+ '((:results . "raw silent") (:exports . "code"))
+ "Default arguments for evaluating an org source block.")
+
+(defvar org-babel-org-default-header
+ "#+TITLE: default empty header\n"
+ "Default header inserted during export of org blocks.")
+
+(defun org-babel-expand-body:org (body params)
+ (dolist (var (org-babel--get-vars params))
+ (setq body (replace-regexp-in-string
+ (regexp-quote (format "$%s" (car var)))
+ (format "%s" (cdr var))
+ body nil 'literal)))
+ body)
+
+(defun org-babel-execute:org (body params)
+ "Execute a block of Org code with.
+This function is called by `org-babel-execute-src-block'."
+ (let ((result-params (split-string (or (cdr (assq :results params)) "")))
+ (body (org-babel-expand-body:org
+ (replace-regexp-in-string "^," "" body) params)))
+ (cond
+ ((member "latex" result-params)
+ (org-export-string-as (concat "#+Title: \n" body) 'latex t))
+ ((member "html" result-params) (org-export-string-as body 'html t))
+ ((member "ascii" result-params) (org-export-string-as body 'ascii t))
+ (t body))))
+
+(defun org-babel-prep-session:org (_session _params)
+ "Return an error because org does not support sessions."
+ (error "Org does not support sessions"))
+
+(provide 'ob-org)
+
+;;; ob-org.el ends here