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200 lines
6.8 KiB
EmacsLisp
200 lines
6.8 KiB
EmacsLisp
;;; org-datetree.el --- Create date entries in a tree
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;; Copyright (C) 2009 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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;; Version: 6.32trans
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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 contains code to create entries in a tree where the top-level
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;; nodes represent years, the level 2 nodes represent the months, and the
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;; level 1 entries days.
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;;; Code:
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(require 'org)
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(defvar org-datetree-base-level 1
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"The level at which years should be placed in the date tree.
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This is normally one, but if the buffer has an entry with a DATE_TREE
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property, the date tree will become a subtree under that entry, so the
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base level will be properly adjusted.")
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(defun org-datetree-find-date-create (date &optional keep-restriction)
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"Find or create an entry for DATE.
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If KEEP-RESTRICTION is non-nil, do not widen the buffer.
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When it is nit, the buffer will be widened to make sure an existing date
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tree can be found."
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(let ((year (nth 2 date))
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(month (car date))
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(day (nth 1 date)))
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(org-set-local 'org-datetree-base-level 1)
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(or keep-restriction (widen))
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(goto-char (point-min))
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(save-restriction
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(when (re-search-forward "^[ \t]*:DATE_TREE:[ \t]+\\S-" nil t)
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(org-back-to-heading t)
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(org-set-local 'org-datetree-base-level
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(org-get-valid-level (funcall outline-level) 1))
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(org-narrow-to-subtree))
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(goto-char (point-min))
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(org-datetree-find-year-create year)
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(org-datetree-find-month-create year month)
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(org-datetree-find-day-create year month day)
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(goto-char (prog1 (point) (widen))))))
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(defun org-datetree-find-year-create (year)
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(let ((re "^\\*+[ \t]+\\([12][0-9][0-9][0-9]\\)[ \t\n]")
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match)
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(goto-char (point-min))
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(while (and (setq match (re-search-forward re nil t))
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(goto-char (match-beginning 1))
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(< (string-to-number (match-string 1)) year)))
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(cond
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((not match)
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(goto-char (point-max))
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(or (bolp) (newline))
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(org-datetree-insert-line year))
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((= (string-to-number (match-string 1)) year)
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(goto-char (point-at-bol)))
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(t
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(beginning-of-line 1)
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(org-datetree-insert-line year)))))
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(defun org-datetree-find-month-create (year month)
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(org-narrow-to-subtree)
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(let ((re (format "^\\*+[ \t]+%d-\\([01][0-9]\\)[ \t\n]" year))
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match)
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(goto-char (point-min))
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(while (and (setq match (re-search-forward re nil t))
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(goto-char (match-beginning 1))
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(< (string-to-number (match-string 1)) month)))
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(cond
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((not match)
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(goto-char (point-max))
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(or (bolp) (newline))
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(org-datetree-insert-line year month))
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((= (string-to-number (match-string 1)) month)
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(goto-char (point-at-bol)))
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(t
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(beginning-of-line 1)
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(org-datetree-insert-line year month)))))
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(defun org-datetree-find-day-create (year month day)
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(org-narrow-to-subtree)
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(let ((re (format "^\\*+[ \t]+%d-%02d-\\([01][0-9]\\)[ \t\n]" year month))
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match)
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(goto-char (point-min))
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(while (and (setq match (re-search-forward re nil t))
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(goto-char (match-beginning 1))
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(< (string-to-number (match-string 1)) day)))
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(cond
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((not match)
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(goto-char (point-max))
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(or (bolp) (newline))
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(org-datetree-insert-line year month day))
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((= (string-to-number (match-string 1)) day)
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(goto-char (point-at-bol)))
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(t
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(beginning-of-line 1)
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(org-datetree-insert-line year month day)))))
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(defun org-datetree-insert-line (year &optional month day)
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(let ((pos (point)))
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(skip-chars-backward " \t\n")
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(delete-region (point) pos)
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(insert "\n" (make-string org-datetree-base-level ?*) " \n")
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(backward-char 1)
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(if month (org-do-demote))
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(if day (org-do-demote))
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(insert (format "%d" year))
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(when month
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(insert (format "-%02d" month))
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(if day
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(insert (format "-%02d %s"
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day (format-time-string
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"%A" (encode-time 0 0 0 day month year))))
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(insert (format " %s"
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(format-time-string
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"%B" (encode-time 0 0 0 1 month year))))))
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(beginning-of-line 1)))
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(defun org-datetree-file-entry-under (txt date)
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"Insert a node TXT into the date tree under DATE."
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(org-datetree-find-date-create date)
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(let ((level (org-get-valid-level (funcall outline-level) 1)))
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(org-end-of-subtree t t)
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(org-back-over-empty-lines)
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(org-paste-subtree level txt)))
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(defun org-datetree-cleanup ()
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"Make sure all entries in the current tree are under the correct date.
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It may be useful to restrict the buffer to the applicable portion
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before running this command, even though the command tries to be smart."
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(interactive)
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(goto-char (point-min))
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(let ((dre (concat "\\<" org-deadline-string "\\>[ \t]*\\'"))
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(sre (concat "\\<" org-scheduled-string "\\>[ \t]*\\'"))
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dct ts tmp date year month day pos hdl-pos)
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(while (re-search-forward org-ts-regexp nil t)
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(catch 'next
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(setq ts (match-string 0))
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(setq tmp (buffer-substring
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(max (point-at-bol) (- (match-beginning 0)
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org-ds-keyword-length))
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(match-beginning 0)))
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(if (or (string-match "-\\'" tmp)
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(string-match dre tmp)
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(string-match sre tmp))
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(throw 'next nil))
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(setq dct (decode-time (org-time-string-to-time (match-string 0)))
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date (list (nth 4 dct) (nth 3 dct) (nth 5 dct))
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year (nth 2 date)
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month (car date)
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day (nth 1 date)
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pos (point))
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(org-back-to-heading t)
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(setq hdl-pos (point))
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(unless (org-up-heading-safe)
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;; No parent, we are not in a date tree
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(goto-char pos)
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(throw 'next nil))
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(unless (looking-at "\\*+[ \t]+[0-9]+-[0-1][0-9]-[0-3][0-9]")
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;; Parent looks wrong, we are not in a date tree
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(goto-char pos)
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(throw 'next nil))
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(when (looking-at (format "\\*+[ \t]+%d-%02d-%02d" year month day))
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;; At correct date already, do nothing
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(progn (goto-char pos) (throw 'next nil)))
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;; OK, we need to refile this entry
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(goto-char hdl-pos)
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(org-cut-subtree)
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(save-excursion
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(save-restriction
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(org-datetree-file-entry-under (current-kill 0) date)))))))
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(provide 'org-datetree)
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;; arch-tag: 1daea962-fd08-448b-9f98-6e8b511b3601
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;;; org-datetree.el ends here
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