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-;;; org-icalendar.el --- iCalendar export for Org-mode
-
-;; Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
-;; Free Software Foundation, Inc.
-
-;; Author: Carsten Dominik <carsten at orgmode dot org>
-;; Keywords: outlines, hypermedia, calendar, wp
-;; Homepage: http://orgmode.org
-;; Version: 7.4
-;;
-;; 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:
-
-;;; Code:
-
-(require 'org-exp)
-
-(eval-when-compile
- (require 'cl))
-
-(declare-function org-bbdb-anniv-export-ical "org-bbdb" nil)
-
-(defgroup org-export-icalendar nil
- "Options specific for iCalendar export of Org-mode files."
- :tag "Org Export iCalendar"
- :group 'org-export)
-
-(defcustom org-combined-agenda-icalendar-file "~/org.ics"
- "The file name for the iCalendar file covering all agenda files.
-This file is created with the command \\[org-export-icalendar-all-agenda-files].
-The file name should be absolute, the file will be overwritten without warning."
- :group 'org-export-icalendar
- :type 'file)
-
-(defcustom org-icalendar-alarm-time 0
- "Number of minutes for triggering an alarm for exported timed events.
-A zero value (the default) turns off the definition of an alarm trigger
-for timed events. If non-zero, alarms are created.
-
-- a single alarm per entry is defined
-- The alarm will go off N minutes before the event
-- only a DISPLAY action is defined."
- :group 'org-export-icalendar
- :type 'integer)
-
-(defcustom org-icalendar-combined-name "OrgMode"
- "Calendar name for the combined iCalendar representing all agenda files."
- :group 'org-export-icalendar
- :type 'string)
-
-(defcustom org-icalendar-combined-description nil
- "Calendar description for the combined iCalendar (all agenda files)."
- :group 'org-export-icalendar
- :type 'string)
-
-(defcustom org-icalendar-use-plain-timestamp t
- "Non-nil means make an event from every plain time stamp."
- :group 'org-export-icalendar
- :type 'boolean)
-
-(defcustom org-icalendar-use-deadline '(event-if-not-todo todo-due)
- "Contexts where iCalendar export should use a deadline time stamp.
-This is a list with several symbols in it. Valid symbol are:
-
-event-if-todo Deadlines in TODO entries become calendar events.
-event-if-not-todo Deadlines in non-TODO entries become calendar events.
-todo-due Use deadlines in TODO entries as due-dates"
- :group 'org-export-icalendar
- :type '(set :greedy t
- (const :tag "Deadlines in non-TODO entries become events"
- event-if-not-todo)
- (const :tag "Deadline in TODO entries become events"
- event-if-todo)
- (const :tag "Deadlines in TODO entries become due-dates"
- todo-due)))
-
-(defcustom org-icalendar-use-scheduled '(todo-start)
- "Contexts where iCalendar export should use a scheduling time stamp.
-This is a list with several symbols in it. Valid symbol are:
-
-event-if-todo Scheduling time stamps in TODO entries become an event.
-event-if-not-todo Scheduling time stamps in non-TODO entries become an event.
-todo-start Scheduling time stamps in TODO entries become start date.
- Some calendar applications show TODO entries only after
- that date."
- :group 'org-export-icalendar
- :type '(set :greedy t
- (const :tag
- "SCHEDULED timestamps in non-TODO entries become events"
- event-if-not-todo)
- (const :tag "SCHEDULED timestamps in TODO entries become events"
- event-if-todo)
- (const :tag "SCHEDULED in TODO entries become start date"
- todo-start)))
-
-(defcustom org-icalendar-categories '(local-tags category)
- "Items that should be entered into the categories field.
-This is a list of symbols, the following are valid:
-
-category The Org-mode category of the current file or tree
-todo-state The todo state, if any
-local-tags The tags, defined in the current line
-all-tags All tags, including inherited ones."
- :group 'org-export-icalendar
- :type '(repeat
- (choice
- (const :tag "The file or tree category" category)
- (const :tag "The TODO state" todo-state)
- (const :tag "Tags defined in current line" local-tags)
- (const :tag "All tags, including inherited ones" all-tags))))
-
-(defcustom org-icalendar-include-todo nil
- "Non-nil means export to iCalendar files should also cover TODO items.
-Valid values are:
-nil don't include any TODO items
-t include all TODO items that are not in a DONE state
-unblocked include all TODO items that are not blocked
-all include both done and not done items."
- :group 'org-export-icalendar
- :type '(choice
- (const :tag "None" nil)
- (const :tag "Unfinished" t)
- (const :tag "Unblocked" unblocked)
- (const :tag "All" all)))
-
-(defvar org-icalendar-verify-function nil
- "Function to verify entries for iCalendar export.
-This can be set to a function that will be called at each entry that
-is considered for export to iCalendar. When the function returns nil,
-the entry will be skipped. When it returns a non-nil value, the entry
-will be considered for export.
-This is used internally when an agenda buffer is exported to an ics file,
-to make sure that only entries currently listed in the agenda will end
-up in the ics file. But for normal iCalendar export, you can use this
-for whatever you need.")
-
-(defcustom org-icalendar-include-bbdb-anniversaries nil
- "Non-nil means a combined iCalendar files should include anniversaries.
-The anniversaries are define in the BBDB database."
- :group 'org-export-icalendar
- :type 'boolean)
-
-(defcustom org-icalendar-include-sexps t
- "Non-nil means export to iCalendar files should also cover sexp entries.
-These are entries like in the diary, but directly in an Org-mode file."
- :group 'org-export-icalendar
- :type 'boolean)
-
-(defcustom org-icalendar-include-body 100
- "Amount of text below headline to be included in iCalendar export.
-This is a number of characters that should maximally be included.
-Properties, scheduling and clocking lines will always be removed.
-The text will be inserted into the DESCRIPTION field."
- :group 'org-export-icalendar
- :type '(choice
- (const :tag "Nothing" nil)
- (const :tag "Everything" t)
- (integer :tag "Max characters")))
-
-(defcustom org-icalendar-store-UID nil
- "Non-nil means store any created UIDs in properties.
-The iCalendar standard requires that all entries have a unique identifier.
-Org will create these identifiers as needed. When this variable is non-nil,
-the created UIDs will be stored in the ID property of the entry. Then the
-next time this entry is exported, it will be exported with the same UID,
-superseding the previous form of it. This is essential for
-synchronization services.
-This variable is not turned on by default because we want to avoid creating
-a property drawer in every entry if people are only playing with this feature,
-or if they are only using it locally."
- :group 'org-export-icalendar
- :type 'boolean)
-
-(defcustom org-icalendar-timezone (getenv "TZ")
- "The time zone string for iCalendar export.
-When nil of the empty string, use the abbreviation retrieved from Emacs."
- :group 'org-export-icalendar
- :type '(choice
- (const :tag "Unspecified" nil)
- (string :tag "Time zone")))
-
-(defcustom org-icalendar-use-UTC-date-time ()
- "Non-nil force the use of the universal time for iCalendar DATE-TIME.
-The iCalendar DATE-TIME can be expressed with local time or universal Time,
-universal time could be more compatible with some external tools."
- :group 'org-export-icalendar
- :type 'boolean)
-
-;;; iCalendar export
-
-;;;###autoload
-(defun org-export-icalendar-this-file ()
- "Export current file as an iCalendar file.
-The iCalendar file will be located in the same directory as the Org-mode
-file, but with extension `.ics'."
- (interactive)
- (org-export-icalendar nil buffer-file-name))
-
-;;;###autoload
-(defun org-export-icalendar-all-agenda-files ()
- "Export all files in the variable `org-agenda-files' to iCalendar .ics files.
-Each iCalendar file will be located in the same directory as the Org-mode
-file, but with extension `.ics'."
- (interactive)
- (apply 'org-export-icalendar nil (org-agenda-files t)))
-
-;;;###autoload
-(defun org-export-icalendar-combine-agenda-files ()
- "Export all files in `org-agenda-files' to a single combined iCalendar file.
-The file is stored under the name `org-combined-agenda-icalendar-file'."
- (interactive)
- (apply 'org-export-icalendar t (org-agenda-files t)))
-
-(defun org-export-icalendar (combine &rest files)
- "Create iCalendar files for all elements of FILES.
-If COMBINE is non-nil, combine all calendar entries into a single large
-file and store it under the name `org-combined-agenda-icalendar-file'."
- (save-excursion
- (org-prepare-agenda-buffers files)
- (let* ((dir (org-export-directory
- :ical (list :publishing-directory
- org-export-publishing-directory)))
- file ical-file ical-buffer category started org-agenda-new-buffers)
- (and (get-buffer "*ical-tmp*") (kill-buffer "*ical-tmp*"))
- (when combine
- (setq ical-file
- (if (file-name-absolute-p org-combined-agenda-icalendar-file)
- org-combined-agenda-icalendar-file
- (expand-file-name org-combined-agenda-icalendar-file dir))
- ical-buffer (org-get-agenda-file-buffer ical-file))
- (set-buffer ical-buffer) (erase-buffer))
- (while (setq file (pop files))
- (catch 'nextfile
- (org-check-agenda-file file)
- (set-buffer (org-get-agenda-file-buffer file))
- (unless combine
- (setq ical-file (concat (file-name-as-directory dir)
- (file-name-sans-extension
- (file-name-nondirectory buffer-file-name))
- ".ics"))
- (setq ical-buffer (org-get-agenda-file-buffer ical-file))
- (with-current-buffer ical-buffer (erase-buffer)))
- (setq category (or org-category
- (file-name-sans-extension
- (file-name-nondirectory buffer-file-name))))
- (if (symbolp category) (setq category (symbol-name category)))
- (let ((standard-output ical-buffer))
- (if combine
- (and (not started) (setq started t)
- (org-start-icalendar-file org-icalendar-combined-name))
- (org-start-icalendar-file category))
- (org-print-icalendar-entries combine)
- (when (or (and combine (not files)) (not combine))
- (when (and combine org-icalendar-include-bbdb-anniversaries)
- (require 'org-bbdb)
- (org-bbdb-anniv-export-ical))
- (org-finish-icalendar-file)
- (set-buffer ical-buffer)
- (run-hooks 'org-before-save-iCalendar-file-hook)
- (save-buffer)
- (run-hooks 'org-after-save-iCalendar-file-hook)
- (and (boundp 'org-wait) (numberp org-wait) (sit-for org-wait))
- ))))
- (org-release-buffers org-agenda-new-buffers))))
-
-(defvar org-before-save-iCalendar-file-hook nil
- "Hook run before an iCalendar file has been saved.
-This can be used to modify the result of the export.")
-
-(defvar org-after-save-iCalendar-file-hook nil
- "Hook run after an iCalendar file has been saved.
-The iCalendar buffer is still current when this hook is run.
-A good way to use this is to tell a desktop calendar application to re-read
-the iCalendar file.")
-
-(defvar org-agenda-default-appointment-duration) ; defined in org-agenda.el
-(defun org-print-icalendar-entries (&optional combine)
- "Print iCalendar entries for the current Org-mode file to `standard-output'.
-When COMBINE is non nil, add the category to each line."
- (require 'org-agenda)
- (let ((re1 (concat org-ts-regexp "\\|<%%([^>\n]+>"))
- (re2 (concat "--?-?\\(" org-ts-regexp "\\)"))
- (dts (org-ical-ts-to-string
- (format-time-string (cdr org-time-stamp-formats) (current-time))
- "DTSTART"))
- hd ts ts2 state status (inc t) pos b sexp rrule
- scheduledp deadlinep todo prefix due start
- tmp pri categories location summary desc uid alarm
- (sexp-buffer (get-buffer-create "*ical-tmp*")))
- (org-refresh-category-properties)
- (save-excursion
- (goto-char (point-min))
- (while (re-search-forward re1 nil t)
- (catch :skip
- (org-agenda-skip)
- (when org-icalendar-verify-function
- (unless (save-match-data (funcall org-icalendar-verify-function))
- (outline-next-heading)
- (backward-char 1)
- (throw :skip nil)))
- (setq pos (match-beginning 0)
- ts (match-string 0)
- inc t
- hd (condition-case nil
- (org-icalendar-cleanup-string
- (org-get-heading t))
- (error (throw :skip nil)))
- summary (org-icalendar-cleanup-string
- (org-entry-get nil "SUMMARY"))
- desc (org-icalendar-cleanup-string
- (or (org-entry-get nil "DESCRIPTION")
- (and org-icalendar-include-body (org-get-entry)))
- t org-icalendar-include-body)
- location (org-icalendar-cleanup-string
- (org-entry-get nil "LOCATION" 'selective))
- uid (if org-icalendar-store-UID
- (org-id-get-create)
- (or (org-id-get) (org-id-new)))
- categories (org-export-get-categories)
- alarm ""
- deadlinep nil scheduledp nil)
- (if (looking-at re2)
- (progn
- (goto-char (match-end 0))
- (setq ts2 (match-string 1)
- inc (not (string-match "[0-9]\\{1,2\\}:[0-9][0-9]" ts2))))
- (setq tmp (buffer-substring (max (point-min)
- (- pos org-ds-keyword-length))
- pos)
- ts2 (if (string-match "[0-9]\\{1,2\\}:[0-9][0-9]-\\([0-9]\\{1,2\\}:[0-9][0-9]\\)" ts)
- (progn
- (setq inc nil)
- (replace-match "\\1" t nil ts))
- ts)
- deadlinep (string-match org-deadline-regexp tmp)
- scheduledp (string-match org-scheduled-regexp tmp)
- todo (org-get-todo-state)
- ;; donep (org-entry-is-done-p)
- ))
- (when (and (not org-icalendar-use-plain-timestamp)
- (not deadlinep) (not scheduledp))
- (throw :skip t))
- (when (and
- deadlinep
- (if todo
- (not (memq 'event-if-todo org-icalendar-use-deadline))
- (not (memq 'event-if-not-todo org-icalendar-use-deadline))))
- (throw :skip t))
- (when (and
- scheduledp
- (if todo
- (not (memq 'event-if-todo org-icalendar-use-scheduled))
- (not (memq 'event-if-not-todo org-icalendar-use-scheduled))))
- (throw :skip t))
- (setq prefix (if deadlinep "DL-" (if scheduledp "SC-" "TS-")))
- (if (or (string-match org-tr-regexp hd)
- (string-match org-ts-regexp hd))
- (setq hd (replace-match "" t t hd)))
- (if (string-match "\\+\\([0-9]+\\)\\([dwmy]\\)>" ts)
- (setq rrule
- (concat "\nRRULE:FREQ="
- (cdr (assoc
- (match-string 2 ts)
- '(("d" . "DAILY")("w" . "WEEKLY")
- ("m" . "MONTHLY")("y" . "YEARLY"))))
- ";INTERVAL=" (match-string 1 ts)))
- (setq rrule ""))
- (setq summary (or summary hd))
- ;; create an alarm entry if the entry is timed. this is not very general in that:
- ;; (a) only one alarm per entry is defined,
- ;; (b) only minutes are allowed for the trigger period ahead of the start time, and
- ;; (c) only a DISPLAY action is defined.
- ;; [ESF]
- (let ((t1 (ignore-errors (org-parse-time-string ts 'nodefault))))
- (if (and (> org-icalendar-alarm-time 0)
- (car t1) (nth 1 t1) (nth 2 t1))
- (setq alarm (format "\nBEGIN:VALARM\nACTION:DISPLAY\nDESCRIPTION:%s\nTRIGGER:-P0D0H%dM0S\nEND:VALARM" summary org-icalendar-alarm-time))
- (setq alarm ""))
- )
- (if (string-match org-bracket-link-regexp summary)
- (setq summary
- (replace-match (if (match-end 3)
- (match-string 3 summary)
- (match-string 1 summary))
- t t summary)))
- (if deadlinep (setq summary (concat "DL: " summary)))
- (if scheduledp (setq summary (concat "S: " summary)))
- (if (string-match "\\`<%%" ts)
- (with-current-buffer sexp-buffer
- (insert (substring ts 1 -1) " " summary "\n"))
- (princ (format "BEGIN:VEVENT
-UID: %s
-%s
-%s%s
-SUMMARY:%s%s%s
-CATEGORIES:%s%s
-END:VEVENT\n"
- (concat prefix uid)
- (org-ical-ts-to-string ts "DTSTART")
- (org-ical-ts-to-string ts2 "DTEND" inc)
- rrule summary
- (if (and desc (string-match "\\S-" desc))
- (concat "\nDESCRIPTION: " desc) "")
- (if (and location (string-match "\\S-" location))
- (concat "\nLOCATION: " location) "")
- categories
- alarm)))))
- (when (and org-icalendar-include-sexps
- (condition-case nil (require 'icalendar) (error nil))
- (fboundp 'icalendar-export-region))
- ;; Get all the literal sexps
- (goto-char (point-min))
- (while (re-search-forward "^&?%%(" nil t)
- (catch :skip
- (org-agenda-skip)
- (when org-icalendar-verify-function
- (unless (save-match-data (funcall org-icalendar-verify-function))
- (outline-next-heading)
- (backward-char 1)
- (throw :skip nil)))
- (setq b (match-beginning 0))
- (goto-char (1- (match-end 0)))
- (forward-sexp 1)
- (end-of-line 1)
- (setq sexp (buffer-substring b (point)))
- (with-current-buffer sexp-buffer
- (insert sexp "\n"))))
- (princ (org-diary-to-ical-string sexp-buffer))
- (kill-buffer sexp-buffer))
-
- (when org-icalendar-include-todo
- (setq prefix "TODO-")
- (goto-char (point-min))
- (while (re-search-forward org-complex-heading-regexp nil t)
- (catch :skip
- (org-agenda-skip)
- (when org-icalendar-verify-function
- (unless (save-match-data
- (funcall org-icalendar-verify-function))
- (outline-next-heading)
- (backward-char 1)
- (throw :skip nil)))
- (setq state (match-string 2))
- (setq status (if (member state org-done-keywords)
- "COMPLETED" "NEEDS-ACTION"))
- (when (and state
- (cond
- ;; check if the state is one we should use
- ((eq org-icalendar-include-todo 'all)
- ;; all should be included
- t)
- ((eq org-icalendar-include-todo 'unblocked)
- ;; only undone entries that are not blocked
- (and (member state org-not-done-keywords)
- (or (not org-blocker-hook)
- (save-match-data
- (run-hook-with-args-until-failure
- 'org-blocker-hook
- (list :type 'todo-state-change
- :position (point-at-bol)
- :from 'todo
- :to 'done))))))
- ((eq org-icalendar-include-todo t)
- ;; include everything that is not done
- (member state org-not-done-keywords))))
- (setq hd (match-string 4)
- summary (org-icalendar-cleanup-string
- (org-entry-get nil "SUMMARY"))
- desc (org-icalendar-cleanup-string
- (or (org-entry-get nil "DESCRIPTION")
- (and org-icalendar-include-body (org-get-entry)))
- t org-icalendar-include-body)
- location (org-icalendar-cleanup-string
- (org-entry-get nil "LOCATION" 'selective))
- due (and (member 'todo-due org-icalendar-use-deadline)
- (org-entry-get nil "DEADLINE"))
- start (and (member 'todo-start org-icalendar-use-scheduled)
- (org-entry-get nil "SCHEDULED"))
- categories (org-export-get-categories)
- uid (if org-icalendar-store-UID
- (org-id-get-create)
- (or (org-id-get) (org-id-new))))
- (and due (setq due (org-ical-ts-to-string due "DUE")))
- (and start (setq start (org-ical-ts-to-string start "DTSTART")))
-
- (if (string-match org-bracket-link-regexp hd)
- (setq hd (replace-match (if (match-end 3) (match-string 3 hd)
- (match-string 1 hd))
- t t hd)))
- (if (string-match org-priority-regexp hd)
- (setq pri (string-to-char (match-string 2 hd))
- hd (concat (substring hd 0 (match-beginning 1))
- (substring hd (match-end 1))))
- (setq pri org-default-priority))
- (setq pri (floor (- 9 (* 8. (/ (float (- org-lowest-priority pri))
- (- org-lowest-priority org-highest-priority))))))
-
- (princ (format "BEGIN:VTODO
-UID: %s
-%s
-SUMMARY:%s%s%s%s
-CATEGORIES:%s
-SEQUENCE:1
-PRIORITY:%d
-STATUS:%s
-END:VTODO\n"
- (concat prefix uid)
- (or start dts)
- (or summary hd)
- (if (and location (string-match "\\S-" location))
- (concat "\nLOCATION: " location) "")
- (if (and desc (string-match "\\S-" desc))
- (concat "\nDESCRIPTION: " desc) "")
- (if due (concat "\n" due) "")
- categories
- pri status)))))))))
-
-(defun org-export-get-categories ()
- "Get categories according to `org-icalendar-categories'."
- (let ((cs org-icalendar-categories) c rtn tmp)
- (while (setq c (pop cs))
- (cond
- ((eq c 'category) (push (org-get-category) rtn))
- ((eq c 'todo-state)
- (setq tmp (org-get-todo-state))
- (and tmp (push tmp rtn)))
- ((eq c 'local-tags)
- (setq rtn (append (nreverse (org-get-local-tags-at (point))) rtn)))
- ((eq c 'all-tags)
- (setq rtn (append (nreverse (org-get-tags-at (point))) rtn)))))
- (mapconcat 'identity (nreverse rtn) ",")))
-
-(defun org-icalendar-cleanup-string (s &optional is-body maxlength)
- "Take out stuff and quote what needs to be quoted.
-When IS-BODY is non-nil, assume that this is the body of an item, clean up
-whitespace, newlines, drawers, and timestamps, and cut it down to MAXLENGTH
-characters."
- (if (not s)
- nil
- (if is-body
- (let ((re (concat "\\(" org-drawer-regexp "\\)[^\000]*?:END:.*\n?"))
- (re2 (concat "^[ \t]*" org-keyword-time-regexp ".*\n?")))
- (while (string-match re s) (setq s (replace-match "" t t s)))
- (while (string-match re2 s) (setq s (replace-match "" t t s))))
- (setq s (replace-regexp-in-string "[[:space:]]+" " " s)))
- (let ((start 0))
- (while (string-match "\\([,;]\\)" s start)
- (setq start (+ (match-beginning 0) 2)
- s (replace-match "\\\\\\1" nil nil s))))
- (setq s (org-trim s))
- (when is-body
- (while (string-match "[ \t]*\n[ \t]*" s)
- (setq s (replace-match "\\n" t t s))))
- (if is-body
- (if maxlength
- (if (and (numberp maxlength)
- (> (length s) maxlength))
- (setq s (substring s 0 maxlength)))))
- s))
-
-(defun org-icalendar-cleanup-string-rfc2455 (s &optional is-body maxlength)
- "Take out stuff and quote what needs to be quoted.
-When IS-BODY is non-nil, assume that this is the body of an item, clean up
-whitespace, newlines, drawers, and timestamps, and cut it down to MAXLENGTH
-characters.
-This seems to be more like RFC 2455, but it causes problems, so it is
-not used right now."
- (if (not s)
- nil
- (if is-body
- (let ((re (concat "\\(" org-drawer-regexp "\\)[^\000]*?:END:.*\n?"))
- (re2 (concat "^[ \t]*" org-keyword-time-regexp ".*\n?")))
- (while (string-match re s) (setq s (replace-match "" t t s)))
- (while (string-match re2 s) (setq s (replace-match "" t t s)))
- (setq s (org-trim s))
- (while (string-match "[ \t]*\n[ \t]*" s)
- (setq s (replace-match "\\n" t t s)))
- (if maxlength
- (if (and (numberp maxlength)
- (> (length s) maxlength))
- (setq s (substring s 0 maxlength)))))
- (setq s (org-trim s)))
- (while (string-match "\"" s) (setq s (replace-match "''" t t s)))
- (when (string-match "[;,:]" s) (setq s (concat "\"" s "\"")))
- s))
-
-(defun org-start-icalendar-file (name)
- "Start an iCalendar file by inserting the header."
- (let ((user user-full-name)
- (name (or name "unknown"))
- (timezone (if (> (length org-icalendar-timezone) 0)
- org-icalendar-timezone
- (cadr (current-time-zone))))
- (description org-icalendar-combined-description))
- (princ
- (format "BEGIN:VCALENDAR
-VERSION:2.0
-X-WR-CALNAME:%s
-PRODID:-//%s//Emacs with Org-mode//EN
-X-WR-TIMEZONE:%s
-X-WR-CALDESC:%s
-CALSCALE:GREGORIAN\n" name user timezone description))))
-
-(defun org-finish-icalendar-file ()
- "Finish an iCalendar file by inserting the END statement."
- (princ "END:VCALENDAR\n"))
-
-(defun org-ical-ts-to-string (s keyword &optional inc)
- "Take a time string S and convert it to iCalendar format.
-KEYWORD is added in front, to make a complete line like DTSTART....
-When INC is non-nil, increase the hour by two (if time string contains
-a time), or the day by one (if it does not contain a time)."
- (let ((t1 (ignore-errors (org-parse-time-string s 'nodefault)))
- t2 fmt have-time time)
- (if (not t1)
- ""
- (if (and (car t1) (nth 1 t1) (nth 2 t1))
- (setq t2 t1 have-time t)
- (setq t2 (org-parse-time-string s)))
- (let ((s (car t2)) (mi (nth 1 t2)) (h (nth 2 t2))
- (d (nth 3 t2)) (m (nth 4 t2)) (y (nth 5 t2)))
- (when inc
- (if have-time
- (if org-agenda-default-appointment-duration
- (setq mi (+ org-agenda-default-appointment-duration mi))
- (setq h (+ 2 h)))
- (setq d (1+ d))))
- (setq time (encode-time s mi h d m y)))
- (setq fmt (if have-time (if org-icalendar-use-UTC-date-time
- ":%Y%m%dT%H%M%SZ"
- ":%Y%m%dT%H%M%S")
- ";VALUE=DATE:%Y%m%d"))
- (concat keyword (format-time-string fmt time
- (and org-icalendar-use-UTC-date-time
- have-time))))))
-
-(provide 'org-icalendar)
-
-;; arch-tag: 2dee2b6e-9211-4aee-8a47-a3c7e5bc30cf
-;;; org-icalendar.el ends here