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;;; ob-org.el --- Babel Functions for Org Code Blocks -*- lexical-binding: t; -*-
;; Copyright (C) 2010-2025 Free Software Foundation, Inc.
;; Author: Eric Schulte
;; Keywords: literate programming, reproducible research
;; URL: 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 'org-macs)
(org-assert-version)
(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)
"Expand Org BODY according to PARAMS.
$VAR instances are replaced by VAR values defined in PARAMS."
(dolist (var (org-babel--get-vars params))
(setq body (replace-regexp-in-string
(regexp-quote (format "$%s" (car var)))
(format "%s" (cdr var))
body 'fixedcase 'literal)))
(let ((prologue (cdr (assq :prologue params)))
(epilogue (cdr (assq :epilogue params))))
(concat
(and prologue (concat prologue "\n"))
body
(and epilogue (concat "\n" epilogue "\n")))))
(defun org-babel-execute:org (body params)
"Execute a Org BODY according to PARAMS.
The BODY is returned expanded as is or exported, if PARAMS define
latex/html/ascii result type.
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
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