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https://git.savannah.gnu.org/git/emacs/org-mode.git
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85 lines
2.9 KiB
EmacsLisp
85 lines
2.9 KiB
EmacsLisp
;;; ob-org.el --- Babel Functions for Org Code Blocks -*- lexical-binding: t; -*-
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;; Copyright (C) 2010-2024 Free Software Foundation, Inc.
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;; Author: Eric Schulte
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;; Keywords: literate programming, reproducible research
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;; URL: https://orgmode.org
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This is the simplest of code blocks, where upon evaluation the
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;; contents of the code block are returned in a raw result.
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;;; Code:
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(require 'org-macs)
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(org-assert-version)
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(require 'ob)
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(declare-function org-export-string-as "ox"
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(string backend &optional body-only ext-plist))
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(defvar org-babel-default-header-args:org
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'((:results . "raw silent") (:exports . "code"))
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"Default arguments for evaluating an org source block.")
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(defvar org-babel-org-default-header
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"#+TITLE: default empty header\n"
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"Default header inserted during export of org blocks.")
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(defun org-babel-expand-body:org (body params)
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"Expand Org BODY according to PARAMS.
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$VAR instances are replaced by VAR values defined in PARAMS."
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(dolist (var (org-babel--get-vars params))
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(setq body (replace-regexp-in-string
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(regexp-quote (format "$%s" (car var)))
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(format "%s" (cdr var))
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body 'fixedcase 'literal)))
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(let ((prologue (cdr (assq :prologue params)))
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(epilogue (cdr (assq :epilogue params))))
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(concat
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(and prologue (concat prologue "\n"))
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body
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(and epilogue (concat "\n" epilogue "\n")))))
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(defun org-babel-execute:org (body params)
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"Execute a Org BODY according to PARAMS.
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The BODY is returned expanded as is or exported, if PARAMS define
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latex/html/ascii result type.
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This function is called by `org-babel-execute-src-block'."
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(let ((result-params (split-string (or (cdr (assq :results params)) "")))
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(body (org-babel-expand-body:org
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(replace-regexp-in-string "^," "" body) params)))
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(cond
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((member "latex" result-params)
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(org-export-string-as (concat "#+Title: \n" body) 'latex t))
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((member "html" result-params) (org-export-string-as body 'html t))
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((member "ascii" result-params) (org-export-string-as body 'ascii t))
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(t body))))
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(defun org-babel-prep-session:org (_session _params)
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"Return an error because org does not support sessions."
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(error "Org does not support sessions"))
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(provide 'ob-org)
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;;; ob-org.el ends here
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