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-;;; org-wl.el --- Support for links to Wanderlust messages from within Org-mode
-
-;; Copyright (C) 2004-2012 Free Software Foundation, Inc.
-
-;; Author: Tokuya Kameshima <kames at fa2 dot so-net dot ne dot jp>
-;; David Maus <dmaus at ictsoc dot de>
-;; Keywords: outlines, hypermedia, calendar, wp
-;; Homepage: http://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 <http://www.gnu.org/licenses/>.
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;
-;;; Commentary:
-
-;; This file implements links to Wanderlust messages from within Org-mode.
-;; Org-mode loads this module by default - if this is not what you want,
-;; configure the variable `org-modules'.
-
-;;; Code:
-
-(require 'org)
-
-(defgroup org-wl nil
- "Options concerning the Wanderlust link."
- :tag "Org Startup"
- :group 'org-link)
-
-(defcustom org-wl-link-to-refile-destination t
- "Create a link to the refile destination if the message is marked as refile."
- :group 'org-wl
- :type 'boolean)
-
-(defcustom org-wl-link-remove-filter nil
- "Remove filter condition if message is filter folder."
- :group 'org-wl
- :version "24.1"
- :type 'boolean)
-
-(defcustom org-wl-shimbun-prefer-web-links nil
- "If non-nil create web links for shimbun messages."
- :group 'org-wl
- :version "24.1"
- :type 'boolean)
-
-(defcustom org-wl-nntp-prefer-web-links nil
- "If non-nil create web links for nntp messages.
-When folder name contains string \"gmane\" link to gmane,
-googlegroups otherwise."
- :type 'boolean
- :version "24.1"
- :group 'org-wl)
-
-(defcustom org-wl-disable-folder-check t
- "Disable check for new messages when open a link."
- :type 'boolean
- :version "24.1"
- :group 'org-wl)
-
-(defcustom org-wl-namazu-default-index nil
- "Default namazu search index."
- :type 'directory
- :version "24.1"
- :group 'org-wl)
-
-;; Declare external functions and variables
-(declare-function elmo-folder-exists-p "ext:elmo" (folder) t)
-(declare-function elmo-message-entity-field "ext:elmo-msgdb"
- (entity field &optional type))
-(declare-function elmo-message-field "ext:elmo"
- (folder number field &optional type) t)
-(declare-function elmo-msgdb-overview-get-entity "ext:elmo" (id msgdb) t)
-;; Backward compatibility to old version of wl
-(declare-function wl "ext:wl" () t)
-(declare-function wl-summary-buffer-msgdb "ext:wl-folder" () t)
-(declare-function wl-summary-jump-to-msg-by-message-id "ext:wl-summary"
- (&optional id))
-(declare-function wl-summary-jump-to-msg "ext:wl-summary"
- (&optional number beg end))
-(declare-function wl-summary-line-from "ext:wl-summary" ())
-(declare-function wl-summary-line-subject "ext:wl-summary" ())
-(declare-function wl-summary-message-number "ext:wl-summary" ())
-(declare-function wl-summary-redisplay "ext:wl-summary" (&optional arg))
-(declare-function wl-summary-registered-temp-mark "ext:wl-action" (number))
-(declare-function wl-folder-goto-folder-subr "ext:wl-folder"
- (&optional folder sticky))
-(declare-function wl-folder-get-petname "ext:wl-folder" (name))
-(declare-function wl-folder-get-entity-from-buffer "ext:wl-folder"
- (&optional getid))
-(declare-function wl-folder-buffer-group-p "ext:wl-folder")
-(defvar wl-init)
-(defvar wl-summary-buffer-elmo-folder)
-(defvar wl-summary-buffer-folder-name)
-(defvar wl-folder-group-regexp)
-(defvar wl-auto-check-folder-name)
-(defvar elmo-nntp-default-server)
-
-(defconst org-wl-folder-types
- '(("%" . imap) ("-" . nntp) ("+" . mh) ("=" . spool)
- ("$" . archive) ("&" . pop) ("@" . shimbun) ("[" . search)
- ("*" . multi) ("/" . filter) ("|" . pipe) ("'" . internal))
- "List of folder indicators. See Wanderlust manual, section 3.")
-
-;; Install the link type
-(org-add-link-type "wl" 'org-wl-open)
-(add-hook 'org-store-link-functions 'org-wl-store-link)
-
-;; Implementation
-
-(defun org-wl-folder-type (folder)
- "Return symbol that indicates the type of FOLDER.
-FOLDER is the wanderlust folder name. The first character of the
-folder name determines the folder type."
- (let* ((indicator (substring folder 0 1))
- (type (cdr (assoc indicator org-wl-folder-types))))
- ;; maybe access or file folder
- (when (not type)
- (setq type
- (cond
- ((and (>= (length folder) 5)
- (string= (substring folder 0 5) "file:"))
- 'file)
- ((and (>= (length folder) 7)
- (string= (substring folder 0 7) "access:"))
- 'access)
- (t
- nil))))
- type))
-
-(defun org-wl-message-field (field entity)
- "Return content of FIELD in ENTITY.
-FIELD is a symbol of a rfc822 message header field.
-ENTITY is a message entity."
- (let ((content (elmo-message-entity-field entity field 'string)))
- (if (listp content) (car content) content)))
-
-(defun org-wl-store-link ()
- "Store a link to a WL message or folder."
- (unless (eobp)
- (cond
- ((memq major-mode '(wl-summary-mode mime-view-mode))
- (org-wl-store-link-message))
- ((eq major-mode 'wl-folder-mode)
- (org-wl-store-link-folder))
- (t
- nil))))
-
-(defun org-wl-store-link-folder ()
- "Store a link to a WL folder."
- (let* ((folder (wl-folder-get-entity-from-buffer))
- (petname (wl-folder-get-petname folder))
- (link (concat "wl:" folder)))
- (save-excursion
- (beginning-of-line)
- (unless (and (wl-folder-buffer-group-p)
- (looking-at wl-folder-group-regexp))
- (org-store-link-props :type "wl" :description petname
- :link link)
- link))))
-
-(defun org-wl-store-link-message ()
- "Store a link to a WL message."
- (save-excursion
- (let ((buf (if (eq major-mode 'wl-summary-mode)
- (current-buffer)
- (and (boundp 'wl-message-buffer-cur-summary-buffer)
- wl-message-buffer-cur-summary-buffer))))
- (when buf
- (with-current-buffer buf
- (let* ((msgnum (wl-summary-message-number))
- (mark-info (wl-summary-registered-temp-mark msgnum))
- (folder-name
- (if (and org-wl-link-to-refile-destination
- mark-info
- (equal (nth 1 mark-info) "o")) ; marked as refile
- (nth 2 mark-info)
- wl-summary-buffer-folder-name))
- (folder-type (org-wl-folder-type folder-name))
- (wl-message-entity
- (if (fboundp 'elmo-message-entity)
- (elmo-message-entity
- wl-summary-buffer-elmo-folder msgnum)
- (elmo-msgdb-overview-get-entity
- msgnum (wl-summary-buffer-msgdb))))
- (message-id
- (org-wl-message-field 'message-id wl-message-entity))
- (message-id-no-brackets
- (org-remove-angle-brackets message-id))
- (from (org-wl-message-field 'from wl-message-entity))
- (to (org-wl-message-field 'to wl-message-entity))
- (xref (org-wl-message-field 'xref wl-message-entity))
- (subject (org-wl-message-field 'subject wl-message-entity))
- (date (org-wl-message-field 'date wl-message-entity))
- (date-ts (and date (format-time-string
- (org-time-stamp-format t)
- (date-to-time date))))
- (date-ts-ia (and date (format-time-string
- (org-time-stamp-format t t)
- (date-to-time date))))
- desc link)
-
- ;; remove text properties of subject string to avoid possible bug
- ;; when formatting the subject
- ;; (Emacs bug #5306, fixed)
- (set-text-properties 0 (length subject) nil subject)
-
- ;; maybe remove filter condition
- (when (and (eq folder-type 'filter) org-wl-link-remove-filter)
- (while (eq (org-wl-folder-type folder-name) 'filter)
- (setq folder-name
- (replace-regexp-in-string "^/[^/]+/" "" folder-name))))
-
- ;; maybe create http link
- (cond
- ((and (eq folder-type 'shimbun)
- org-wl-shimbun-prefer-web-links xref)
- (org-store-link-props :type "http" :link xref :description subject
- :from from :to to :message-id message-id
- :message-id-no-brackets message-id-no-brackets
- :subject subject))
- ((and (eq folder-type 'nntp) org-wl-nntp-prefer-web-links)
- (setq link
- (format
- (if (string-match "gmane\\." folder-name)
- "http://mid.gmane.org/%s"
- "http://groups.google.com/groups/search?as_umsgid=%s")
- (org-fixup-message-id-for-http message-id)))
- (org-store-link-props :type "http" :link link :description subject
- :from from :to to :message-id message-id
- :message-id-no-brackets message-id-no-brackets
- :subject subject))
- (t
- (org-store-link-props :type "wl" :from from :to to
- :subject subject :message-id message-id
- :message-id-no-brackets message-id-no-brackets)
- (setq desc (org-email-link-description))
- (setq link (concat "wl:" folder-name "#" message-id-no-brackets))
- (org-add-link-props :link link :description desc)))
- (when date
- (org-add-link-props :date date :date-timestamp date-ts
- :date-timestamp-inactive date-ts-ia))
- (or link xref)))))))
-
-(defun org-wl-open-nntp (path)
- "Follow the nntp: link specified by PATH."
- (let* ((spec (split-string path "/"))
- (server (split-string (nth 2 spec) "@"))
- (group (nth 3 spec))
- (article (nth 4 spec)))
- (org-wl-open
- (concat "-" group ":" (if (cdr server)
- (car (split-string (car server) ":"))
- "")
- (if (string= elmo-nntp-default-server (nth 2 spec))
- ""
- (concat "@" (or (cdr server) (car server))))
- (if article (concat "#" article) "")))))
-
-(defun org-wl-open (path)
- "Follow the WL message link specified by PATH.
-When called with one prefix, open message in namazu search folder
-with `org-wl-namazu-default-index' as search index. When called
-with two prefixes or `org-wl-namazu-default-index' is nil, ask
-for namazu index."
- (require 'wl)
- (let ((wl-auto-check-folder-name
- (if org-wl-disable-folder-check
- 'none
- wl-auto-check-folder-name)))
- (unless wl-init (wl))
- ;; XXX: The imap-uw's MH folder names start with "%#".
- (if (not (string-match "\\`\\(\\(?:%#\\)?[^#]+\\)\\(#\\(.*\\)\\)?" path))
- (error "Error in Wanderlust link"))
- (let ((folder (match-string 1 path))
- (article (match-string 3 path)))
- ;; maybe open message in namazu search folder
- (when current-prefix-arg
- (setq folder (concat "[" article "]"
- (if (and (equal current-prefix-arg '(4))
- org-wl-namazu-default-index)
- org-wl-namazu-default-index
- (read-directory-name "Namazu index: ")))))
- (if (not (elmo-folder-exists-p (org-no-warnings
- (wl-folder-get-elmo-folder folder))))
- (error "No such folder: %s" folder))
- (let ((old-buf (current-buffer))
- (old-point (point-marker)))
- (wl-folder-goto-folder-subr folder)
- (with-current-buffer old-buf
- ;; XXX: `wl-folder-goto-folder-subr' moves point to the
- ;; beginning of the current line. So, restore the point
- ;; in the old buffer.
- (goto-char old-point))
- (when article
- (if (org-string-match-p "@" article)
- (wl-summary-jump-to-msg-by-message-id (org-add-angle-brackets
- article))
- (or (wl-summary-jump-to-msg (string-to-number article))
- (error "No such message: %s" article)))
- (wl-summary-redisplay))))))
-
-(provide 'org-wl)
-
-;;; org-wl.el ends here