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131 lines
5.0 KiB
EmacsLisp
131 lines
5.0 KiB
EmacsLisp
;;; org-info.el --- Support for links to Info nodes from within Org-Mode
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;; Copyright (C) 2004-2016 Free Software Foundation, Inc.
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;; Author: Carsten Dominik <carsten at orgmode dot org>
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;; Keywords: outlines, hypermedia, calendar, wp
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;; Homepage: http://orgmode.org
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;;
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;; This file is part of GNU Emacs.
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;;
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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 <http://www.gnu.org/licenses/>.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Commentary:
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;; This file implements links to Info nodes from within Org-mode.
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;; Org-mode loads this module by default - if this is not what you want,
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;; configure the variable `org-modules'.
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;;; Code:
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(require 'org)
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;; Declare external functions and variables
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(declare-function Info-find-node "info"
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(filename nodename &optional no-going-back strict-case))
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(defvar Info-current-file)
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(defvar Info-current-node)
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;; Install the link type
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(org-add-link-type "info" 'org-info-open 'org-info-export)
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(add-hook 'org-store-link-functions 'org-info-store-link)
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;; Implementation
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(defun org-info-store-link ()
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"Store a link to an Info file and node."
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(when (eq major-mode 'Info-mode)
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(let (link desc)
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(setq link (concat "info:"
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(file-name-nondirectory Info-current-file)
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"#" Info-current-node))
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(setq desc (concat (file-name-nondirectory Info-current-file)
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"#" Info-current-node))
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(org-store-link-props :type "info" :file Info-current-file
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:node Info-current-node
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:link link :desc desc)
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link)))
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(defun org-info-open (path)
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"Follow an Info file and node link specified by PATH."
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(org-info-follow-link path))
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(defun org-info-follow-link (name)
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"Follow an Info file and node link specified by NAME."
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(if (or (string-match "\\(.*\\)[#:]:?\\(.*\\)" name)
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(string-match "\\(.*\\)" name))
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(let ((filename (match-string 1 name))
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(nodename-or-index (or (match-string 2 name) "Top")))
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(require 'info)
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;; If nodename-or-index is invalid node name, then look it up
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;; in the index.
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(condition-case nil
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(Info-find-node filename nodename-or-index)
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(user-error (Info-find-node filename "Top")
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(condition-case nil
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(Info-index nodename-or-index)
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(user-error "Could not find '%s' node or index entry"
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nodename-or-index)))))
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(user-error "Could not open: %s" name)))
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(defconst org-info-emacs-documents
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'("ada-mode" "auth" "autotype" "bovine" "calc" "ccmode" "cl" "dbus" "dired-x"
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"ebrowse" "ede" "ediff" "edt" "efaq-w32" "efaq" "eieio" "eintr" "elisp"
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"emacs-gnutls" "emacs-mime" "emacs" "epa" "erc" "ert" "eshell" "eudc" "eww"
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"flymake" "forms" "gnus" "htmlfontify" "idlwave" "ido" "info" "mairix-el"
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"message" "mh-e" "newsticker" "nxml-mode" "octave-mode" "org" "pcl-cvs"
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"pgg" "rcirc" "reftex" "remember" "sasl" "sc" "semantic" "ses" "sieve"
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"smtpmail" "speedbar" "srecode" "todo-mode" "tramp" "url" "vip" "viper"
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"widget" "wisent" "woman")
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"List of emacs documents available.
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Taken from <http://www.gnu.org/software/emacs/manual/html_mono/.>")
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(defconst org-info-other-documents
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'(("libc" . "http://www.gnu.org/software/libc/manual/html_mono/libc.html")
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("make" . "http://www.gnu.org/software/make/manual/make.html"))
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"Alist of documents generated from texinfo source.
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When converting info links to html, links to any one of these manuals are
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converted to use these URL's.")
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(defun org-info-map-html-url (filename)
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"Given info FILENAME, either return it (plus '.html' suffix added) or convert
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it to URL pointing to the official page on internet, e.g., use gnu.org for all
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emacs related documents. See `org-info-official-gnu-document' and
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`org-info-other-documents' for details."
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(if (member filename org-info-emacs-documents)
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(format "http://www.gnu.org/software/emacs/manual/html_mono/%s.html"
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filename)
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(let ((url (cdr (assoc filename org-info-other-documents))))
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(or url (concat filename ".html")))))
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(defun org-info-export (path desc format)
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"Export an info link.
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See `org-add-link-type' for details about PATH, DESC and FORMAT."
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(when (eq format 'html)
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(or (string-match "\\(.*\\)[#:]:?\\(.*\\)" path)
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(string-match "\\(.*\\)" path))
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(let ((filename (match-string 1 path))
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(node (or (match-string 2 path) "Top")))
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(format "<a href=\"%s#%s\">%s</a>"
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(org-info-map-html-url filename)
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(replace-regexp-in-string " " "-" node)
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(or desc path)))))
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(provide 'org-info)
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;;; org-info.el ends here
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