org-mode/org-info.el
Carsten Dominik 43eee81b3a Moved most of the linking code to separate files.
This files are stil all loaded automatically, but the user can turn
individual files off.  Also, this makes maintaining the link
stuff easier, because everything related to a specific link type
is in one place.
2008-03-15 08:33:31 +01:00

79 lines
2.7 KiB
EmacsLisp

;;; org-info.el - Support for links to Info nodes in Org-mode
;; Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;; Author: Carsten Dominik <carsten at orgmode dot org>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org
;; Version: 1.0
;;
;; 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, 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; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Commentary:
;; This file implements links to Info nodes for Org-mode.
;; Org-mode loads this module by default - if this is not what you want,
;; configure the variable `org-modules'.
(require 'org)
;; Declare external functions and variables
(declare-function Info-find-node "info" (filename nodename
&optional no-going-back))
(defvar Info-current-file)
(defvar Info-current-node)
;; Install the link type
(org-add-link-type "info" 'org-info-open)
(add-hook 'org-store-link-functions 'org-info-store-link)
;; Implementation
(defun org-info-store-link ()
"Store a link to an INFO folder or message."
(when (eq major-mode 'Info-mode)
(let (link desc)
(setq link (org-make-link "info:"
(file-name-nondirectory Info-current-file)
":" Info-current-node))
(setq desc (concat (file-name-nondirectory Info-current-file)
":" Info-current-node))
(org-store-link-props :type "info" :file Info-current-file
:node Info-current-node
:link link :desc desc))))
(defun org-info-open (path)
"Follow an INFO message link."
(org-info-follow-link path))
(defun org-info-follow-link (name)
"Follow an info file & node link to NAME."
(if (or (string-match "\\(.*\\)::?\\(.*\\)" name)
(string-match "\\(.*\\)" name))
(progn
(require 'info)
(if (match-string 2 name) ; If there isn't a node, choose "Top"
(Info-find-node (match-string 1 name) (match-string 2 name))
(Info-find-node (match-string 1 name) "Top")))
(message "Could not open: %s" name)))
(provide 'org-info)
;;; org-info.el ends here