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[Orgmode] Re: Please test links


From: Tokuya Kameshima
Subject: [Orgmode] Re: Please test links
Date: Sun, 16 Mar 2008 23:47:04 +0900

Hi Carsten,

I checked org-wl.el and it works fine.

BTW, I have another implementation of org-wl.el.  Is it possible to
merge my version to the git?

The differences between git version and mine are:

- Integrated `org-wl-open' function into `org-wl-open'.
- org-wl-store-link: If the message on the cursor line is marked as
  refile ("o"), set the link's folder to the refile destionation
  folder.  I prefer this behavior since I read the email in the inbox
  folder, set the refile mark, and create TODO task using remember
  package from the email before performing the refile operation.
  After I create tasks, I execute the refile.
- Fixed "To:" field extraction problem where the function
  `elmo-message-entity-field' returns a string or a list of strings.
- org-wl-open: Added a workaround for `wl-folder-goto-folder-subr',
  which moves point to the beginning of the current line in the old
  folder.

Thanks,
--Tokuya

> From: Carsten Dominik <dominik <at> science.uva.nl>
> Subject: Re: Re: Please test links
> Newsgroups: gmane.emacs.orgmode
> Date: 2008-03-15 20:35:49 GMT (17 hours and 38 minutes ago)
> 
> At least we got you to learn git! :-)
> 
> Thanks for the analysis, I have fixed this problem for all link
> packages, thanks a lot!!!
> 
> Please, everyone, git it another shot.
> 
> Ahh, I don't know what I would do without all this help.
> 
> - Carsten


;;; org-wl.el - Support for links to Wanderlust messages 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 Wanderlust messages 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 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" (&rest unknown) t)
;; Backward compatibility to old version of wl
(declare-function wl-summary-buffer-msgdb "ext:wl-folder" (&rest unknown) t)
(declare-function wl-folder-get-elmo-folder "ext:wl-folder"
                  (entity &optional no-cache))
(declare-function wl-summary-goto-folder-subr "ext:wl-summary"
                  (&optional name scan-type other-window sticky interactive
                             scoring force-exit))
(declare-function wl-summary-jump-to-msg-by-message-id "ext:wl-summary"
                  (&optional id))
(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))
(defvar wl-summary-buffer-elmo-folder)
(defvar wl-summary-buffer-folder-name)
(defvar wl-summary-buffer-temp-mark-list)

;; 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-store-link ()
  "Store a link to an WL folder or message."
  (when (eq major-mode 'wl-summary-mode)
    (let* ((msgnum (wl-summary-message-number))
           (folder-name
            (let ((elem (assq msgnum wl-summary-buffer-temp-mark-list)))
              (if (equal (nth 1 elem) "o") ; marked as refile
                  (nth 2 elem)
                wl-summary-buffer-folder-name)))
           (message-id (elmo-message-field wl-summary-buffer-elmo-folder
                                           msgnum 'message-id))
           (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))))
           (from (wl-summary-line-from))
           (to (let ((to-field (elmo-message-entity-field wl-message-entity
                                                          'to)))
                 (if (listp to-field)
                     (car to-field)
                   to-field)))
           (subject (let (wl-thr-indent-string wl-parent-message-entity)
                      (wl-summary-line-subject)))
           desc link)
      (org-store-link-props :type "wl" :from from :to to
                            :subject subject :message-id message-id)
      (setq message-id (org-remove-angle-brackets message-id))
      (setq desc (org-email-link-description))
      (setq link (org-make-link "wl:" folder-name
                                "#" message-id))
      (org-add-link-props :link link :description desc)
      link)))

(defun org-wl-open (path)
  "Follow an WL message link."
  ;; 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)))
    (if (not (elmo-folder-exists-p (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)
      (save-excursion
        ;; XXX: `wl-folder-goto-folder-subr' moves point to the
        ;; beginning of the current line.  So, restore the point
        ;; in the old buffer.
        (set-buffer old-buf)
        (goto-char old-point))
      (wl-thread-open-all)
      (and (wl-summary-jump-to-msg-by-message-id (org-add-angle-brackets
                                                  article))
           (wl-summary-redisplay)))))

(provide 'org-wl)

;;; org-wl.el ends here




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