Variable: org-export-backends

org-export-backends is a customizable variable defined in org.el.gz.

Value

(ascii html icalendar latex odt)

Documentation

List of export back-ends that should be always available.

If a description starts with <C>, the file is not part of Emacs and Org mode, so loading it will require that you have properly installed org-contrib package from NonGNU Emacs Lisp Package Archive https://elpa.nongnu.org/nongnu/org-contrib.html

Unlike to org-modules, libraries in this list will not be loaded along with Org, but only once the export framework is needed.

This variable needs to be set before org.el is loaded. If you need to make a change while Emacs is running, use the customize interface or run the following code, where VAL stands for the new value of the variable, after updating it:

  (progn
    (setq org-export-registered-backends
          (cl-remove-if-not
           (lambda (backend)
             (let ((name (org-export-backend-name backend)))
               (or (memq name val)
                   (catch 'parentp
                     (dolist (b val)
                       (and (org-export-derived-backend-p b name)
                            (throw 'parentp t)))))))
           org-export-registered-backends))
    (let ((new-list (mapcar #'org-export-backend-name
                            org-export-registered-backends)))
      (dolist (backend val)
        (cond
         ((not (load (format "ox-%s" backend) t t))
          (message "Problems while trying to load export back-end \\=`%s\\='"
                   backend))
         ((not (memq backend new-list)) (push backend new-list))))
      (set-default 'org-export-backends new-list)))

Adding a back-end to this list will also pull the back-end it depends on, if any.

This variable was added, or its default value changed, in Org version
9.0.

Source Code

;; Defined in /usr/src/emacs/lisp/org/org.el.gz
(defcustom org-export-backends '(ascii html icalendar latex odt)
  "List of export back-ends that should be always available.

If a description starts with <C>, the file is not part of Emacs and Org mode,
so loading it will require that you have properly installed org-contrib
package from NonGNU Emacs Lisp Package Archive
https://elpa.nongnu.org/nongnu/org-contrib.html

Unlike to `org-modules', libraries in this list will not be
loaded along with Org, but only once the export framework is
needed.

This variable needs to be set before org.el is loaded.  If you
need to make a change while Emacs is running, use the customize
interface or run the following code, where VAL stands for the new
value of the variable, after updating it:

  (progn
    (setq org-export-registered-backends
          (cl-remove-if-not
           (lambda (backend)
             (let ((name (org-export-backend-name backend)))
               (or (memq name val)
                   (catch \\='parentp
                     (dolist (b val)
                       (and (org-export-derived-backend-p b name)
                            (throw \\='parentp t)))))))
           org-export-registered-backends))
    (let ((new-list (mapcar #\\='org-export-backend-name
                            org-export-registered-backends)))
      (dolist (backend val)
        (cond
         ((not (load (format \"ox-%s\" backend) t t))
          (message \"Problems while trying to load export back-end \\=`%s\\='\"
                   backend))
         ((not (memq backend new-list)) (push backend new-list))))
      (set-default \\='org-export-backends new-list)))

Adding a back-end to this list will also pull the back-end it
depends on, if any."
  :group 'org
  :group 'org-export
  :version "26.1"
  :package-version '(Org . "9.0")
  :initialize 'custom-initialize-set
  :set (lambda (var val)
	 (if (not (featurep 'ox)) (set-default-toplevel-value var val)
	   ;; Any back-end not required anymore (not present in VAL and not
	   ;; a parent of any back-end in the new value) is removed from the
	   ;; list of registered back-ends.
	   (setq org-export-registered-backends
		 (cl-remove-if-not
		  (lambda (backend)
		    (let ((name (org-export-backend-name backend)))
		      (or (memq name val)
			  (catch 'parentp
			    (dolist (b val)
			      (and (org-export-derived-backend-p b name)
				   (throw 'parentp t)))))))
		  org-export-registered-backends))
	   ;; Now build NEW-LIST of both new back-ends and required
	   ;; parents.
	   (let ((new-list (mapcar #'org-export-backend-name
				   org-export-registered-backends)))
	     (dolist (backend val)
	       (cond
		((not (load (format "ox-%s" backend) t t))
		 (message "Problems while trying to load export back-end `%s'"
			  backend))
		((not (memq backend new-list)) (push backend new-list))))
	     ;; Set VAR to that list with fixed dependencies.
	     (set-default-toplevel-value var new-list))))
  :type '(set :greedy t
	      (const :tag "   ascii       Export buffer to ASCII format" ascii)
	      (const :tag "   beamer      Export buffer to Beamer presentation" beamer)
	      (const :tag "   html        Export buffer to HTML format" html)
	      (const :tag "   icalendar   Export buffer to iCalendar format" icalendar)
	      (const :tag "   latex       Export buffer to LaTeX format" latex)
	      (const :tag "   man         Export buffer to MAN format" man)
	      (const :tag "   md          Export buffer to Markdown format" md)
	      (const :tag "   odt         Export buffer to ODT format" odt)
	      (const :tag "   org         Export buffer to Org format" org)
	      (const :tag "   texinfo     Export buffer to Texinfo format" texinfo)
	      (const :tag "C  confluence  Export buffer to Confluence Wiki format" confluence)
	      (const :tag "C  deck        Export buffer to deck.js presentations" deck)
	      (const :tag "C  freemind    Export buffer to Freemind mindmap format" freemind)
	      (const :tag "C  groff       Export buffer to Groff format" groff)
	      (const :tag "C  koma-letter Export buffer to KOMA Scrlttrl2 format" koma-letter)
	      (const :tag "C  RSS 2.0     Export buffer to RSS 2.0 format" rss)
	      (const :tag "C  s5          Export buffer to s5 presentations" s5)
	      (const :tag "C  taskjuggler Export buffer to TaskJuggler format" taskjuggler)))