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e0cd68ee | 1 | ;;; icalendar.el --- iCalendar implementation -*-coding: utf-8 -*- |
707c20a8 GM |
2 | |
3 | ;; Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. | |
4 | ||
e0cd68ee GM |
5 | ;; Author: Ulf Jasper <ulf.jasper@web.de> |
6 | ;; Created: August 2002 | |
7 | ;; Keywords: calendar | |
707c20a8 GM |
8 | ;; Human-Keywords: calendar, diary, iCalendar, vCalendar |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
26 | ||
27 | ;;; Commentary: | |
28 | ||
29 | ;; This package is documented in the Emacs Manual. | |
30 | ||
31 | ||
32 | ;;; History: | |
33 | ||
e0cd68ee GM |
34 | ;; 0.07: Renamed commands! |
35 | ;; icalendar-extract-ical-from-buffer -> icalendar-import-buffer | |
36 | ;; icalendar-convert-diary-to-ical -> icalendar-export-file | |
37 | ;; Naming scheme: icalendar-.* = user command; icalendar--.* = | |
38 | ;; internal. | |
39 | ;; Added icalendar-export-region. | |
40 | ;; The import and export commands do not clear their target file, | |
41 | ;; but append their results to the target file. | |
f2aa5449 GM |
42 | ;; I18n-problems fixed -- use calendar-(month|day)-name-array. |
43 | ;; Fixed problems with export of multi-line diary entries. | |
e0cd68ee GM |
44 | |
45 | ;; 0.06: Bugfixes regarding icalendar-import-format-*. | |
46 | ;; Fix in icalendar-convert-diary-to-ical -- thanks to Philipp | |
47 | ;; Grau. | |
707c20a8 GM |
48 | |
49 | ;; 0.05: New import format scheme: Replaced icalendar-import-prefix-*, | |
50 | ;; icalendar-import-ignored-properties, and | |
51 | ;; icalendar-import-separator with icalendar-import-format(-*). | |
52 | ;; icalendar-import-file and icalendar-convert-diary-to-ical | |
53 | ;; have an extra parameter which should prevent them from | |
54 | ;; erasing their target files (untested!). | |
55 | ;; Tested with Emacs 21.3.2 | |
56 | ||
57 | ;; 0.04: Bugfix: import: double quoted param values did not work | |
58 | ;; Read DURATION property when importing. | |
59 | ;; Added parameter icalendar-duration-correction. | |
60 | ||
61 | ;; 0.03: Export takes care of european-calendar-style. | |
62 | ;; Tested with Emacs 21.3.2 and XEmacs 21.4.12 | |
63 | ||
64 | ;; 0.02: Should work in XEmacs now. Thanks to Len Trigg for the | |
65 | ;; XEmacs patches! | |
66 | ;; Added exporting from Emacs diary to ical. | |
67 | ;; Some bugfixes, after testing with calendars from | |
68 | ;; http://icalshare.com. | |
69 | ;; Tested with Emacs 21.3.2 and XEmacs 21.4.12 | |
70 | ||
71 | ;; 0.01: First published version. Trial version. Alpha version. | |
72 | ||
73 | ;; ====================================================================== | |
74 | ;; To Do: | |
75 | ||
e0cd68ee | 76 | ;; * Import from ical to diary: |
707c20a8 GM |
77 | ;; + Need more properties for icalendar-import-format |
78 | ;; + check vcalendar version | |
79 | ;; + check (unknown) elements | |
80 | ;; + recurring events! | |
81 | ;; + works for european style calendars only! Does it? | |
82 | ;; + alarm | |
83 | ;; + exceptions in recurring events | |
84 | ;; + the parser is too soft | |
85 | ;; + error log is incomplete | |
86 | ;; + nice to have: #include "webcal://foo.com/some-calendar.ics" | |
87 | ||
e0cd68ee | 88 | ;; * Export from diary to ical |
707c20a8 GM |
89 | ;; + diary-date, diary-float, and self-made sexp entries are not |
90 | ;; understood | |
91 | ;; + timezones, currently all times are local! | |
92 | ||
93 | ;; * Other things | |
707c20a8 GM |
94 | ;; + clean up all those date/time parsing functions |
95 | ;; + Handle todo items? | |
96 | ;; + Check iso 8601 for datetime and period | |
97 | ;; + Which chars to (un)escape? | |
707c20a8 GM |
98 | |
99 | ||
100 | ;;; Code: | |
101 | ||
e0cd68ee | 102 | (defconst icalendar-version 0.07 |
707c20a8 GM |
103 | "Version number of icalendar.el.") |
104 | ||
105 | ;; ====================================================================== | |
106 | ;; Customizables | |
107 | ;; ====================================================================== | |
108 | (defgroup icalendar nil | |
109 | "Icalendar support." | |
110 | :prefix "icalendar-" | |
111 | :group 'calendar) | |
112 | ||
113 | (defcustom icalendar-import-format | |
114 | "%s%d%l%o" | |
115 | "Format string for importing events from iCalendar into Emacs diary. | |
116 | This string defines how iCalendar events are inserted into diary | |
117 | file. Meaning of the specifiers: | |
118 | %d Description, see `icalendar-import-format-description' | |
119 | %l Location, see `icalendar-import-format-location' | |
120 | %o Organizer, see `icalendar-import-format-organizer' | |
121 | %s Subject, see `icalendar-import-format-subject'" | |
122 | :type 'string | |
123 | :group 'icalendar) | |
124 | ||
125 | (defcustom icalendar-import-format-subject | |
126 | "%s" | |
127 | "Format string defining how the subject element is formatted. | |
128 | This applies only if the subject is not empty! `%s' is replaced | |
129 | by the subject." | |
130 | :type 'string | |
131 | :group 'icalendar) | |
132 | ||
133 | (defcustom icalendar-import-format-description | |
134 | "\n Desc: %s" | |
135 | "Format string defining how the description element is formatted. | |
136 | This applies only if the description is not empty! `%s' is | |
137 | replaced by the description." | |
138 | :type 'string | |
139 | :group 'icalendar) | |
140 | ||
141 | (defcustom icalendar-import-format-location | |
142 | "\n Location: %s" | |
143 | "Format string defining how the location element is formatted. | |
144 | This applies only if the location is not empty! `%s' is replaced | |
145 | by the location." | |
146 | :type 'string | |
147 | :group 'icalendar) | |
148 | ||
149 | (defcustom icalendar-import-format-organizer | |
150 | "\n Organizer: %s" | |
151 | "Format string defining how the organizer element is formatted. | |
152 | This applies only if the organizer is not empty! `%s' is | |
153 | replaced by the organizer." | |
154 | :type 'string | |
155 | :group 'icalendar) | |
156 | ||
157 | (defcustom icalendar-duration-correction | |
158 | t | |
159 | "Workaround for all-day events. | |
160 | If non-nil the length=duration of iCalendar appointments that | |
161 | have a length of exactly n days is decreased by one day. This | |
162 | fixes problems with all-day events, which appear to be one day | |
163 | longer than they are." | |
164 | :type 'boolean | |
165 | :group 'icalendar) | |
166 | ||
167 | ||
168 | ;; ====================================================================== | |
169 | ;; NO USER SERVICABLE PARTS BELOW THIS LINE | |
170 | ;; ====================================================================== | |
171 | ||
f2aa5449 | 172 | (defconst icalendar--weekday-array ["SU" "MO" "TU" "WE" "TH" "FR" "SA"]) |
707c20a8 GM |
173 | |
174 | (defvar icalendar-debug nil ".") | |
175 | ||
176 | ;; ====================================================================== | |
177 | ;; all the other libs we need | |
178 | ;; ====================================================================== | |
179 | (require 'calendar) | |
180 | (require 'appt) | |
181 | ||
e0cd68ee GM |
182 | ;; ====================================================================== |
183 | ;; misc | |
184 | ;; ====================================================================== | |
185 | (defun icalendar--dmsg (&rest args) | |
186 | "Print message ARGS if `icalendar-debug' is non-nil." | |
187 | (if icalendar-debug | |
188 | (apply 'message args))) | |
189 | ||
707c20a8 GM |
190 | ;; ====================================================================== |
191 | ;; Core functionality | |
192 | ;; Functions for parsing icalendars, importing and so on | |
193 | ;; ====================================================================== | |
194 | ||
e0cd68ee | 195 | (defun icalendar--get-unfolded-buffer (folded-ical-buffer) |
707c20a8 GM |
196 | "Return a new buffer containing the unfolded contents of a buffer. |
197 | Folding is the iCalendar way of wrapping long lines. In the | |
198 | created buffer all occurrences of CR LF BLANK are replaced by the | |
199 | empty string. Argument FOLDED-ICAL-BUFFER is the unfolded input | |
200 | buffer." | |
201 | (let ((unfolded-buffer (get-buffer-create " *icalendar-work*"))) | |
202 | (save-current-buffer | |
203 | (set-buffer unfolded-buffer) | |
204 | (erase-buffer) | |
205 | (insert-buffer folded-ical-buffer) | |
206 | (while (re-search-forward "\r?\n[ \t]" nil t) | |
e0cd68ee | 207 | (replace-match "" nil nil))) |
707c20a8 GM |
208 | unfolded-buffer)) |
209 | ||
e0cd68ee GM |
210 | (defsubst icalendar--rris (re rp st) |
211 | "Replace regexp RE with RP in string ST and return the new string. | |
212 | This is here for compatibility with XEmacs." | |
707c20a8 GM |
213 | ;; XEmacs: |
214 | (if (fboundp 'replace-in-string) | |
215 | (save-match-data ;; apparently XEmacs needs save-match-data | |
216 | (replace-in-string st re rp)) | |
217 | ;; Emacs: | |
218 | (replace-regexp-in-string re rp st))) | |
219 | ||
e0cd68ee | 220 | (defun icalendar--read-element (invalue inparams) |
707c20a8 GM |
221 | "Recursively read the next iCalendar element in the current buffer. |
222 | INVALUE gives the current iCalendar element we are reading. | |
223 | INPARAMS gives the current parameters..... | |
224 | This function calls itself recursively for each nested calendar element | |
225 | it finds" | |
226 | (let (element children line name params param param-name param-value | |
227 | value | |
e0cd68ee | 228 | (continue t)) |
707c20a8 GM |
229 | (setq children '()) |
230 | (while (and continue | |
231 | (re-search-forward "^\\([A-Za-z0-9-]+\\)[;:]" nil t)) | |
232 | (setq name (intern (match-string 1))) | |
233 | (backward-char 1) | |
234 | (setq params '()) | |
235 | (setq line '()) | |
236 | (while (looking-at ";") | |
237 | (re-search-forward ";\\([A-Za-z0-9-]+\\)=" nil nil) | |
238 | (setq param-name (intern (match-string 1))) | |
239 | (re-search-forward "\\(\\([^;,:\"]+\\)\\|\"\\([^\"]+\\)\"\\)[;:]" | |
240 | nil t) | |
241 | (backward-char 1) | |
242 | (setq param-value (or (match-string 2) (match-string 3))) | |
243 | (setq param (list param-name param-value)) | |
244 | (while (looking-at ",") | |
245 | (re-search-forward "\\(\\([^;,:]+\\)\\|\"\\([^\"]+\\)\"\\)" | |
246 | nil t) | |
247 | (if (match-string 2) | |
248 | (setq param-value (match-string 2)) | |
249 | (setq param-value (match-string 3))) | |
250 | (setq param (append param param-value))) | |
251 | (setq params (append params param))) | |
252 | (unless (looking-at ":") | |
253 | (error "Oops")) | |
254 | (forward-char 1) | |
255 | (re-search-forward "\\(.*\\)\\(\r?\n[ \t].*\\)*" nil t) | |
e0cd68ee | 256 | (setq value (icalendar--rris "\r?\n[ \t]" "" (match-string 0))) |
707c20a8 GM |
257 | (setq line (list name params value)) |
258 | (cond ((eq name 'BEGIN) | |
259 | (setq children | |
260 | (append children | |
e0cd68ee GM |
261 | (list (icalendar--read-element (intern value) |
262 | params))))) | |
707c20a8 GM |
263 | ((eq name 'END) |
264 | (setq continue nil)) | |
265 | (t | |
266 | (setq element (append element (list line)))))) | |
267 | (if invalue | |
268 | (list invalue inparams element children) | |
269 | children))) | |
270 | ||
271 | ;; ====================================================================== | |
272 | ;; helper functions for examining events | |
273 | ;; ====================================================================== | |
274 | ||
e0cd68ee GM |
275 | ;;(defsubst icalendar--get-all-event-properties (event) |
276 | ;; "Return the list of properties in this EVENT." | |
277 | ;; (car (cddr event))) | |
707c20a8 | 278 | |
e0cd68ee | 279 | (defun icalendar--get-event-property (event prop) |
707c20a8 GM |
280 | "For the given EVENT return the value of the property PROP." |
281 | (catch 'found | |
282 | (let ((props (car (cddr event))) pp) | |
283 | (while props | |
284 | (setq pp (car props)) | |
285 | (if (eq (car pp) prop) | |
286 | (throw 'found (car (cddr pp)))) | |
287 | (setq props (cdr props)))) | |
288 | nil)) | |
289 | ||
e0cd68ee GM |
290 | ;; (defun icalendar--set-event-property (event prop new-value) |
291 | ;; "For the given EVENT set the property PROP to the value NEW-VALUE." | |
292 | ;; (catch 'found | |
293 | ;; (let ((props (car (cddr event))) pp) | |
294 | ;; (while props | |
295 | ;; (setq pp (car props)) | |
296 | ;; (when (eq (car pp) prop) | |
297 | ;; (setcdr (cdr pp) new-value) | |
298 | ;; (throw 'found (car (cddr pp)))) | |
299 | ;; (setq props (cdr props))) | |
300 | ;; (setq props (car (cddr event))) | |
301 | ;; (setcar (cddr event) | |
302 | ;; (append props (list (list prop nil new-value))))))) | |
303 | ||
304 | (defun icalendar--get-children (node name) | |
707c20a8 GM |
305 | "Return all children of the given NODE which have a name NAME. |
306 | For instance the VCALENDAR node can have VEVENT children as well as VTODO | |
307 | children." | |
308 | (let ((result nil) | |
309 | (children (cadr (cddr node)))) | |
310 | (when (eq (car node) name) | |
311 | (setq result node)) | |
312 | ;;(message "%s" node) | |
313 | (when children | |
314 | (let ((subresult | |
315 | (delq nil | |
e0cd68ee GM |
316 | (mapcar (lambda (n) |
317 | (icalendar--get-children n name)) | |
318 | children)))) | |
707c20a8 GM |
319 | (if subresult |
320 | (if result | |
321 | (setq result (append result subresult)) | |
322 | (setq result subresult))))) | |
323 | result)) | |
324 | ||
e0cd68ee GM |
325 | ; private |
326 | (defun icalendar--all-events (icalendar) | |
707c20a8 | 327 | "Return the list of all existing events in the given ICALENDAR." |
e0cd68ee | 328 | (icalendar--get-children (car icalendar) 'VEVENT)) |
707c20a8 | 329 | |
e0cd68ee | 330 | (defun icalendar--split-value (value-string) |
707c20a8 GM |
331 | "Splits VALUE-STRING at ';='." |
332 | (let ((result '()) | |
333 | param-name param-value) | |
334 | (when value-string | |
335 | (save-current-buffer | |
336 | (set-buffer (get-buffer-create " *ical-temp*")) | |
337 | (set-buffer-modified-p nil) | |
338 | (erase-buffer) | |
339 | (insert value-string) | |
340 | (goto-char (point-min)) | |
341 | (while | |
e0cd68ee GM |
342 | (re-search-forward |
343 | "\\([A-Za-z0-9-]+\\)=\\(\\([^;,:]+\\)\\|\"\\([^\"]+\\)\"\\);?" | |
344 | nil t) | |
707c20a8 GM |
345 | (setq param-name (intern (match-string 1))) |
346 | (setq param-value (match-string 2)) | |
347 | (setq result | |
e0cd68ee | 348 | (append result (list (list param-name param-value))))))) |
707c20a8 GM |
349 | result)) |
350 | ||
e0cd68ee | 351 | (defun icalendar--decode-isodatetime (isodatetimestring) |
707c20a8 GM |
352 | "Return ISODATETIMESTRING in format like `decode-time'. |
353 | Converts from ISO-8601 to Emacs representation. If ISODATETIMESTRING | |
354 | specifies UTC time (trailing letter Z) the decoded time is given in | |
355 | the local time zone! FIXME: TZID-attributes are ignored....! FIXME: | |
356 | multiple comma-separated values should be allowed!" | |
e0cd68ee | 357 | (icalendar--dmsg isodatetimestring) |
707c20a8 GM |
358 | (if isodatetimestring |
359 | ;; day/month/year must be present | |
360 | (let ((year (read (substring isodatetimestring 0 4))) | |
361 | (month (read (substring isodatetimestring 4 6))) | |
362 | (day (read (substring isodatetimestring 6 8))) | |
363 | (hour 0) | |
364 | (minute 0) | |
365 | (second 0)) | |
366 | (when (> (length isodatetimestring) 12) | |
e0cd68ee | 367 | ;; hour/minute present |
707c20a8 GM |
368 | (setq hour (read (substring isodatetimestring 9 11))) |
369 | (setq minute (read (substring isodatetimestring 11 13)))) | |
370 | (when (> (length isodatetimestring) 14) | |
e0cd68ee | 371 | ;; seconds present |
707c20a8 GM |
372 | (setq second (read (substring isodatetimestring 13 15)))) |
373 | (when (and (> (length isodatetimestring) 15) | |
e0cd68ee | 374 | ;; UTC specifier present |
707c20a8 GM |
375 | (char-equal ?Z (aref isodatetimestring 15))) |
376 | ;; if not UTC add current-time-zone offset | |
377 | (setq second (+ (car (current-time-zone)) second))) | |
378 | ;; create the decoded date-time | |
379 | ;; FIXME!?! | |
380 | (condition-case nil | |
381 | (decode-time (encode-time second minute hour day month year)) | |
382 | (error | |
383 | (message "Cannot decode \"%s\"" isodatetimestring) | |
384 | ;; hope for the best... | |
385 | (list second minute hour day month year 0 nil 0)))) | |
386 | ;; isodatetimestring == nil | |
387 | nil)) | |
388 | ||
e0cd68ee | 389 | (defun icalendar--decode-isoduration (isodurationstring) |
707c20a8 GM |
390 | "Return ISODURATIONSTRING in format like `decode-time'. |
391 | Converts from ISO-8601 to Emacs representation. If ISODURATIONSTRING | |
392 | specifies UTC time (trailing letter Z) the decoded time is given in | |
393 | the local time zone! FIXME: TZID-attributes are ignored....! FIXME: | |
394 | multiple comma-separated values should be allowed!" | |
395 | (if isodurationstring | |
396 | (save-match-data | |
397 | (string-match | |
398 | (concat | |
399 | "^P[+-]?\\(" | |
400 | "\\(\\([0-9]+\\)D\\)" ; days only | |
401 | "\\|" | |
402 | "\\(\\(\\([0-9]+\\)D\\)?T\\(\\([0-9]+\\)H\\)?" ; opt days | |
e0cd68ee | 403 | "\\(\\([0-9]+\\)M\\)?\\(\\([0-9]+\\)S\\)?\\)" ; mand. time |
707c20a8 GM |
404 | "\\|" |
405 | "\\(\\([0-9]+\\)W\\)" ; weeks only | |
406 | "\\)$") isodurationstring) | |
407 | (let ((seconds 0) | |
408 | (minutes 0) | |
409 | (hours 0) | |
410 | (days 0) | |
411 | (months 0) | |
412 | (years 0)) | |
e0cd68ee GM |
413 | (cond |
414 | ((match-beginning 2) ;days only | |
415 | (setq days (read (substring isodurationstring | |
416 | (match-beginning 3) | |
417 | (match-end 3)))) | |
418 | (when icalendar-duration-correction | |
419 | (setq days (1- days)))) | |
420 | ((match-beginning 4) ;days and time | |
421 | (if (match-beginning 5) | |
422 | (setq days (* 7 (read (substring isodurationstring | |
423 | (match-beginning 6) | |
424 | (match-end 6)))))) | |
425 | (if (match-beginning 7) | |
426 | (setq hours (read (substring isodurationstring | |
427 | (match-beginning 8) | |
428 | (match-end 8))))) | |
429 | (if (match-beginning 9) | |
430 | (setq minutes (read (substring isodurationstring | |
431 | (match-beginning 10) | |
432 | (match-end 10))))) | |
433 | (if (match-beginning 11) | |
434 | (setq seconds (read (substring isodurationstring | |
435 | (match-beginning 12) | |
436 | (match-end 12))))) | |
437 | ) | |
438 | ((match-beginning 13) ;weeks only | |
439 | (setq days (* 7 (read (substring isodurationstring | |
440 | (match-beginning 14) | |
441 | (match-end 14)))))) | |
442 | ) | |
443 | (list seconds minutes hours days months years))) | |
707c20a8 GM |
444 | ;; isodatetimestring == nil |
445 | nil)) | |
446 | ||
e0cd68ee | 447 | (defun icalendar--add-decoded-times (time1 time2) |
707c20a8 GM |
448 | "Add TIME1 to TIME2. |
449 | Both times must be given in decoded form. One of these times must be | |
450 | valid (year > 1900 or something)." | |
451 | ;; FIXME: does this function exist already? | |
452 | (decode-time (encode-time | |
453 | (+ (nth 0 time1) (nth 0 time2)) | |
454 | (+ (nth 1 time1) (nth 1 time2)) | |
455 | (+ (nth 2 time1) (nth 2 time2)) | |
456 | (+ (nth 3 time1) (nth 3 time2)) | |
457 | (+ (nth 4 time1) (nth 4 time2)) | |
458 | (+ (nth 5 time1) (nth 5 time2)) | |
459 | nil | |
460 | nil | |
461 | ;;(or (nth 6 time1) (nth 6 time2)) ;; FIXME? | |
462 | ))) | |
463 | ||
e0cd68ee | 464 | (defun icalendar--datetime-to-noneuropean-date (datetime) |
707c20a8 GM |
465 | "Convert the decoded DATETIME to non-european-style format. |
466 | Non-European format: (month day year)." | |
467 | (if datetime | |
e0cd68ee GM |
468 | (list (nth 4 datetime) ;month |
469 | (nth 3 datetime) ;day | |
470 | (nth 5 datetime)) ;year | |
707c20a8 GM |
471 | ;; datetime == nil |
472 | nil)) | |
473 | ||
e0cd68ee | 474 | (defun icalendar--datetime-to-european-date (datetime) |
707c20a8 GM |
475 | "Convert the decoded DATETIME to European format. |
476 | European format: (day month year). | |
477 | FIXME" | |
478 | (if datetime | |
e0cd68ee GM |
479 | (format "%d %d %d" (nth 3 datetime) ; day |
480 | (nth 4 datetime) ;month | |
481 | (nth 5 datetime)) ;year | |
707c20a8 GM |
482 | ;; datetime == nil |
483 | nil)) | |
484 | ||
e0cd68ee | 485 | (defun icalendar--datetime-to-colontime (datetime) |
707c20a8 GM |
486 | "Extract the time part of a decoded DATETIME into 24-hour format. |
487 | Note that this silently ignores seconds." | |
488 | (format "%02d:%02d" (nth 2 datetime) (nth 1 datetime))) | |
489 | ||
e0cd68ee | 490 | (defun icalendar--get-month-number (monthname) |
707c20a8 | 491 | "Return the month number for the given MONTHNAME." |
f2aa5449 GM |
492 | (catch 'found |
493 | (let ((num 1) | |
494 | (m (downcase monthname))) | |
495 | (mapc (lambda (month) | |
496 | (let ((mm (downcase month))) | |
497 | (if (or (string-equal mm m) | |
498 | (string-equal (substring mm 0 3) m)) | |
499 | (throw 'found num)) | |
500 | (setq num (1+ num)))) | |
501 | calendar-month-name-array)) | |
502 | ;; Error: | |
503 | -1)) | |
504 | ||
505 | (defun icalendar--get-weekday-number (abbrevweekday) | |
506 | "Return the number for the ABBREVWEEKDAY." | |
507 | (catch 'found | |
508 | (let ((num 0) | |
509 | (aw (downcase abbrevweekday))) | |
510 | (mapc (lambda (day) | |
511 | (let ((d (downcase day))) | |
512 | (if (string-equal d aw) | |
513 | (throw 'found num)) | |
514 | (setq num (1+ num)))) | |
515 | icalendar--weekday-array)) | |
516 | ;; Error: | |
517 | -1)) | |
707c20a8 | 518 | |
e0cd68ee | 519 | (defun icalendar--get-weekday-abbrev (weekday) |
707c20a8 | 520 | "Return the abbreviated WEEKDAY." |
f2aa5449 GM |
521 | (catch 'found |
522 | (let ((num 0) | |
523 | (w (downcase weekday))) | |
524 | (mapc (lambda (day) | |
525 | (let ((d (downcase day))) | |
526 | (if (or (string-equal d w) | |
527 | (string-equal (substring d 0 3) w)) | |
528 | (throw 'found (aref icalendar--weekday-array num))) | |
529 | (setq num (1+ num)))) | |
530 | calendar-day-name-array)) | |
531 | ;; Error: | |
532 | "??")) | |
707c20a8 | 533 | |
e0cd68ee | 534 | (defun icalendar--datestring-to-isodate (datestring &optional day-shift) |
707c20a8 GM |
535 | "Convert diary-style DATESTRING to iso-style date. |
536 | If DAY-SHIFT is non-nil, the result is shifted by DAY-SHIFT days | |
537 | -- DAY-SHIFT must be either nil or an integer. This function | |
538 | takes care of european-style." | |
539 | (let ((day -1) month year) | |
540 | (save-match-data | |
e0cd68ee GM |
541 | (cond ( ;; numeric date |
542 | (string-match (concat "\\s-*" | |
543 | "0?\\([1-9][0-9]?\\)[ \t/]\\s-*" | |
544 | "0?\\([1-9][0-9]?\\),?[ \t/]\\s-*" | |
545 | "\\([0-9]\\{4\\}\\)") | |
546 | datestring) | |
547 | (setq day (read (substring datestring (match-beginning 1) | |
548 | (match-end 1)))) | |
549 | (setq month (read (substring datestring (match-beginning 2) | |
550 | (match-end 2)))) | |
551 | (setq year (read (substring datestring (match-beginning 3) | |
552 | (match-end 3)))) | |
553 | (unless european-calendar-style | |
554 | (let ((x month)) | |
555 | (setq month day) | |
556 | (setq day x)))) | |
557 | ( ;; date contains month names -- european-style | |
558 | (and european-calendar-style | |
559 | (string-match (concat "\\s-*" | |
560 | "0?\\([123]?[0-9]\\)[ \t/]\\s-*" | |
561 | "\\([A-Za-z][^ ]+\\)[ \t/]\\s-*" | |
562 | "\\([0-9]\\{4\\}\\)") | |
563 | datestring)) | |
564 | (setq day (read (substring datestring (match-beginning 1) | |
565 | (match-end 1)))) | |
566 | (setq month (icalendar--get-month-number | |
567 | (substring datestring (match-beginning 2) | |
568 | (match-end 2)))) | |
569 | (setq year (read (substring datestring (match-beginning 3) | |
570 | (match-end 3))))) | |
571 | ( ;; date contains month names -- non-european-style | |
572 | (and (not european-calendar-style) | |
573 | (string-match (concat "\\s-*" | |
574 | "\\([A-Za-z][^ ]+\\)[ \t/]\\s-*" | |
575 | "0?\\([123]?[0-9]\\),?[ \t/]\\s-*" | |
576 | "\\([0-9]\\{4\\}\\)") | |
577 | datestring)) | |
578 | (setq day (read (substring datestring (match-beginning 2) | |
579 | (match-end 2)))) | |
580 | (setq month (icalendar--get-month-number | |
581 | (substring datestring (match-beginning 1) | |
582 | (match-end 1)))) | |
583 | (setq year (read (substring datestring (match-beginning 3) | |
584 | (match-end 3))))) | |
585 | (t | |
586 | nil))) | |
707c20a8 | 587 | (if (> day 0) |
e0cd68ee GM |
588 | (let ((mdy (calendar-gregorian-from-absolute |
589 | (+ (calendar-absolute-from-gregorian (list month day | |
590 | year)) | |
591 | (or day-shift 0))))) | |
592 | (format "%04d%02d%02d" (nth 2 mdy) (nth 0 mdy) (nth 1 mdy))) | |
707c20a8 GM |
593 | nil))) |
594 | ||
e0cd68ee | 595 | (defun icalendar--diarytime-to-isotime (timestring ampmstring) |
707c20a8 GM |
596 | "Convert a a time like 9:30pm to an iso-conform string like T213000. |
597 | In this example the TIMESTRING would be \"9:30\" and the AMPMSTRING | |
598 | would be \"pm\"." | |
599 | (if timestring | |
e0cd68ee | 600 | (let ((starttimenum (read (icalendar--rris ":" "" timestring)))) |
707c20a8 GM |
601 | ;; take care of am/pm style |
602 | (if (and ampmstring (string= "pm" ampmstring)) | |
603 | (setq starttimenum (+ starttimenum 1200))) | |
604 | (format "T%04d00" starttimenum)) | |
605 | nil)) | |
606 | ||
e0cd68ee | 607 | (defun icalendar--convert-string-for-export (s) |
707c20a8 | 608 | "Escape comma and other critical characters in string S." |
e0cd68ee | 609 | (icalendar--rris "," "\\\\," s)) |
707c20a8 | 610 | |
e0cd68ee | 611 | (defun icalendar--convert-string-for-import (string) |
707c20a8 | 612 | "Remove escape chars for comma, semicolon etc. from STRING." |
e0cd68ee GM |
613 | (icalendar--rris |
614 | "\\\\n" "\n " (icalendar--rris | |
615 | "\\\\\"" "\"" (icalendar--rris | |
616 | "\\\\;" ";" (icalendar--rris | |
617 | "\\\\," "," string))))) | |
707c20a8 GM |
618 | |
619 | ;; ====================================================================== | |
e0cd68ee | 620 | ;; Export -- convert emacs-diary to icalendar |
707c20a8 GM |
621 | ;; ====================================================================== |
622 | ||
e0cd68ee GM |
623 | ;; User function |
624 | (defun icalendar-export-file (diary-filename ical-filename) | |
625 | "Export diary file to iCalendar format. | |
626 | All diary entries in the file DIARY-FILENAME are converted to iCalendar | |
627 | format. The result is appended to the file ICAL-FILENAME." | |
707c20a8 GM |
628 | (interactive "FExport diary data from file: |
629 | Finto iCalendar file: ") | |
e0cd68ee GM |
630 | (save-current-buffer |
631 | (set-buffer (find-file diary-filename)) | |
632 | (icalendar-export-region (point-min) (point-max) ical-filename))) | |
633 | ||
634 | (defalias 'icalendar-convert-diary-to-ical 'icalendar-export-file) | |
635 | (make-obsolete 'icalendar-convert-diary-to-ical 'icalendar-export-file | |
636 | "icalendar 0.07") | |
637 | ||
638 | ;; User function | |
639 | (defun icalendar-export-region (min max ical-filename) | |
640 | "Export region in diary file to iCalendar format. | |
641 | All diary entries in the region from MIN to MAX in the current buffer are | |
642 | converted to iCalendar format. The result is appended to the file | |
643 | ICAL-FILENAME." | |
644 | (interactive "r | |
645 | FExport diary data into iCalendar file: ") | |
707c20a8 GM |
646 | (let ((result "") |
647 | (start 0) | |
648 | (entry-main "") | |
649 | (entry-rest "") | |
650 | (header "") | |
651 | (contents) | |
652 | (oops nil) | |
653 | (nonmarker (concat "^" (regexp-quote diary-nonmarking-symbol) | |
e0cd68ee GM |
654 | "?"))) |
655 | (save-excursion | |
656 | (goto-char min) | |
707c20a8 | 657 | (while (re-search-forward |
f2aa5449 | 658 | "^\\([^ \t\n].*\\)\\(\\(\n[ \t].*\\)*\\)" max t) |
707c20a8 GM |
659 | (setq entry-main (match-string 1)) |
660 | (if (match-beginning 2) | |
661 | (setq entry-rest (match-string 2)) | |
662 | (setq entry-rest "")) | |
663 | (setq header (format "\nBEGIN:VEVENT\nUID:emacs%d%d%d" | |
664 | (car (current-time)) | |
665 | (cadr (current-time)) | |
666 | (car (cddr (current-time))))) | |
667 | (setq oops nil) | |
668 | (cond | |
669 | ;; anniversaries | |
670 | ((string-match | |
671 | (concat nonmarker | |
672 | "%%(diary-anniversary \\([^)]+\\))\\s-*\\(.*\\)") | |
673 | entry-main) | |
e0cd68ee | 674 | (icalendar--dmsg "diary-anniversary %s" entry-main) |
707c20a8 GM |
675 | (let* ((datetime (substring entry-main (match-beginning 1) |
676 | (match-end 1))) | |
e0cd68ee | 677 | (summary (icalendar--convert-string-for-export |
707c20a8 GM |
678 | (substring entry-main (match-beginning 2) |
679 | (match-end 2)))) | |
e0cd68ee GM |
680 | (startisostring (icalendar--datestring-to-isodate |
681 | datetime)) | |
682 | (endisostring (icalendar--datestring-to-isodate | |
683 | datetime 1))) | |
707c20a8 GM |
684 | (setq contents |
685 | (concat "\nDTSTART;VALUE=DATE:" startisostring | |
686 | "\nDTEND;VALUE=DATE:" endisostring | |
687 | "\nSUMMARY:" summary | |
688 | "\nRRULE:FREQ=YEARLY;INTERVAL=1" | |
689 | ;; the following is redundant, | |
690 | ;; but korganizer seems to expect this... ;( | |
691 | ;; and evolution doesn't understand it... :( | |
692 | ;; so... who is wrong?! | |
693 | ";BYMONTH=" (substring startisostring 4 6) | |
694 | ";BYMONTHDAY=" (substring startisostring 6 8) | |
695 | ))) | |
696 | (unless (string= entry-rest "") | |
697 | (setq contents (concat contents "\nDESCRIPTION:" | |
e0cd68ee | 698 | (icalendar--convert-string-for-export |
707c20a8 GM |
699 | entry-rest))))) |
700 | ;; cyclic events | |
701 | ;; %%(diary-cyclic ) | |
702 | ((string-match | |
703 | (concat nonmarker | |
704 | "%%(diary-cyclic \\([^ ]+\\) +" | |
705 | "\\([^ /]+[ /]+[^ /]+[ /]+[^ ]+\\))\\s-*\\(.*\\)") | |
706 | entry-main) | |
e0cd68ee | 707 | (icalendar--dmsg "diary-cyclic %s" entry-main) |
707c20a8 GM |
708 | (let* ((frequency (substring entry-main (match-beginning 1) |
709 | (match-end 1))) | |
710 | (datetime (substring entry-main (match-beginning 2) | |
711 | (match-end 2))) | |
e0cd68ee | 712 | (summary (icalendar--convert-string-for-export |
707c20a8 GM |
713 | (substring entry-main (match-beginning 3) |
714 | (match-end 3)))) | |
e0cd68ee GM |
715 | (startisostring (icalendar--datestring-to-isodate |
716 | datetime)) | |
717 | (endisostring (icalendar--datestring-to-isodate | |
718 | datetime 1))) | |
707c20a8 GM |
719 | (setq contents |
720 | (concat "\nDTSTART;VALUE=DATE:" startisostring | |
721 | "\nDTEND;VALUE=DATE:" endisostring | |
722 | "\nSUMMARY:" summary | |
723 | "\nRRULE:FREQ=DAILY;INTERVAL=" frequency | |
724 | ;; strange: korganizer does not expect | |
725 | ;; BYSOMETHING here... | |
726 | ))) | |
727 | (unless (string= entry-rest "") | |
728 | (setq contents (concat contents "\nDESCRIPTION:" | |
e0cd68ee | 729 | (icalendar--convert-string-for-export |
707c20a8 GM |
730 | entry-rest))))) |
731 | ;; diary-date -- FIXME | |
732 | ((string-match | |
733 | (concat nonmarker | |
734 | "%%(diary-date \\([^)]+\\))\\s-*\\(.*\\)") | |
735 | entry-main) | |
e0cd68ee | 736 | (icalendar--dmsg "diary-date %s" entry-main) |
707c20a8 GM |
737 | (setq oops t)) |
738 | ;; float events -- FIXME | |
739 | ((string-match | |
740 | (concat nonmarker | |
741 | "%%(diary-float \\([^)]+\\))\\s-*\\(.*\\)") | |
742 | entry-main) | |
e0cd68ee | 743 | (icalendar--dmsg "diary-float %s" entry-main) |
707c20a8 GM |
744 | (setq oops t)) |
745 | ;; block events | |
746 | ((string-match | |
747 | (concat nonmarker | |
748 | "%%(diary-block \\([^ /]+[ /]+[^ /]+[ /]+[^ ]+\\) +" | |
749 | "\\([^ /]+[ /]+[^ /]+[ /]+[^ ]+\\))\\s-*\\(.*\\)") | |
750 | entry-main) | |
e0cd68ee | 751 | (icalendar--dmsg "diary-block %s" entry-main) |
707c20a8 GM |
752 | (let* ((startstring (substring entry-main (match-beginning 1) |
753 | (match-end 1))) | |
754 | (endstring (substring entry-main (match-beginning 2) | |
755 | (match-end 2))) | |
e0cd68ee | 756 | (summary (icalendar--convert-string-for-export |
707c20a8 GM |
757 | (substring entry-main (match-beginning 3) |
758 | (match-end 3)))) | |
e0cd68ee GM |
759 | (startisostring (icalendar--datestring-to-isodate |
760 | startstring)) | |
761 | (endisostring (icalendar--datestring-to-isodate | |
762 | endstring 1))) | |
707c20a8 GM |
763 | (setq contents |
764 | (concat "\nDTSTART;VALUE=DATE:" startisostring | |
765 | "\nDTEND;VALUE=DATE:" endisostring | |
766 | "\nSUMMARY:" summary | |
767 | )) | |
768 | (unless (string= entry-rest "") | |
769 | (setq contents (concat contents "\nDESCRIPTION:" | |
e0cd68ee | 770 | (icalendar--convert-string-for-export |
707c20a8 GM |
771 | entry-rest)))))) |
772 | ;; other sexp diary entries -- FIXME | |
773 | ((string-match | |
774 | (concat nonmarker | |
775 | "%%(\\([^)]+\\))\\s-*\\(.*\\)") | |
776 | entry-main) | |
e0cd68ee | 777 | (icalendar--dmsg "diary-sexp %s" entry-main) |
707c20a8 GM |
778 | (setq oops t)) |
779 | ;; weekly by day | |
780 | ;; Monday 8:30 Team meeting | |
781 | ((and (string-match | |
782 | (concat nonmarker | |
783 | "\\([a-z]+\\)\\s-+" | |
784 | "\\(0?\\([1-9][0-9]?:[0-9][0-9]\\)\\([ap]m\\)?" | |
785 | "\\(-0?" | |
786 | "\\([1-9][0-9]?:[0-9][0-9]\\)\\([ap]m\\)?\\)?" | |
787 | "\\)?" | |
788 | "\\s-*\\(.*\\)$") | |
789 | entry-main) | |
e0cd68ee GM |
790 | (icalendar--get-weekday-abbrev |
791 | (substring entry-main (match-beginning 1) (match-end 1)))) | |
792 | (icalendar--dmsg "weekly %s" entry-main) | |
793 | (let* ((day (icalendar--get-weekday-abbrev | |
707c20a8 GM |
794 | (substring entry-main (match-beginning 1) |
795 | (match-end 1)))) | |
e0cd68ee | 796 | (starttimestring (icalendar--diarytime-to-isotime |
707c20a8 GM |
797 | (if (match-beginning 3) |
798 | (substring entry-main | |
799 | (match-beginning 3) | |
800 | (match-end 3)) | |
801 | nil) | |
802 | (if (match-beginning 4) | |
803 | (substring entry-main | |
804 | (match-beginning 4) | |
805 | (match-end 4)) | |
806 | nil))) | |
e0cd68ee | 807 | (endtimestring (icalendar--diarytime-to-isotime |
707c20a8 GM |
808 | (if (match-beginning 6) |
809 | (substring entry-main | |
e0cd68ee | 810 | (match-beginning 6) |
707c20a8 GM |
811 | (match-end 6)) |
812 | nil) | |
813 | (if (match-beginning 7) | |
814 | (substring entry-main | |
e0cd68ee | 815 | (match-beginning 7) |
707c20a8 GM |
816 | (match-end 7)) |
817 | nil))) | |
e0cd68ee | 818 | (summary (icalendar--convert-string-for-export |
707c20a8 GM |
819 | (substring entry-main (match-beginning 8) |
820 | (match-end 8))))) | |
821 | (when starttimestring | |
822 | (unless endtimestring | |
e0cd68ee GM |
823 | (let ((time (read (icalendar--rris "^T0?" "" |
824 | starttimestring)))) | |
707c20a8 GM |
825 | (setq endtimestring (format "T%06d" (+ 10000 time)))))) |
826 | (setq contents | |
827 | (concat "\nDTSTART" | |
828 | (if starttimestring "" ";VALUE=DATE") | |
829 | ":19000101" ;; FIXME? Probability that this | |
830 | ;; is the right day is 1/7 | |
831 | (or starttimestring "") | |
832 | "\nDTEND" | |
833 | (if endtimestring "" ";VALUE=DATE") | |
834 | ":19000101" ;; FIXME? | |
835 | (or endtimestring "") | |
836 | "\nSUMMARY:" summary | |
837 | "\nRRULE:FREQ=WEEKLY;INTERVAL=1;BYDAY=" day | |
838 | ))) | |
839 | (unless (string= entry-rest "") | |
840 | (setq contents (concat contents "\nDESCRIPTION:" | |
e0cd68ee | 841 | (icalendar--convert-string-for-export |
707c20a8 GM |
842 | entry-rest))))) |
843 | ;; yearly by day | |
844 | ;; 1 May Tag der Arbeit | |
845 | ((string-match | |
846 | (concat nonmarker | |
847 | (if european-calendar-style | |
848 | "0?\\([1-9]+[0-9]?\\)\\s-+\\([a-z]+\\)\\s-+" | |
849 | "\\([a-z]+\\)\\s-+0?\\([1-9]+[0-9]?\\)\\s-+") | |
850 | "\\*?\\s-*" | |
851 | "\\(0?\\([1-9][0-9]?:[0-9][0-9]\\)\\([ap]m\\)?" | |
852 | "\\(" | |
e0cd68ee GM |
853 | "-0?\\([1-9][0-9]?:[0-9][0-9]\\)\\([ap]m\\)?\\)?" |
854 | "\\)?" | |
855 | "\\s-*\\([^0-9]+.*\\)$" ; must not match years | |
707c20a8 GM |
856 | ) |
857 | entry-main) | |
e0cd68ee | 858 | (icalendar--dmsg "yearly %s" entry-main) |
707c20a8 GM |
859 | (let* ((daypos (if european-calendar-style 1 2)) |
860 | (monpos (if european-calendar-style 2 1)) | |
861 | (day (read (substring entry-main (match-beginning daypos) | |
862 | (match-end daypos)))) | |
e0cd68ee | 863 | (month (icalendar--get-month-number |
707c20a8 GM |
864 | (substring entry-main (match-beginning monpos) |
865 | (match-end monpos)))) | |
e0cd68ee | 866 | (starttimestring (icalendar--diarytime-to-isotime |
707c20a8 GM |
867 | (if (match-beginning 4) |
868 | (substring entry-main | |
869 | (match-beginning 4) | |
870 | (match-end 4)) | |
871 | nil) | |
872 | (if (match-beginning 5) | |
873 | (substring entry-main | |
874 | (match-beginning 5) | |
875 | (match-end 5)) | |
876 | nil))) | |
e0cd68ee | 877 | (endtimestring (icalendar--diarytime-to-isotime |
707c20a8 GM |
878 | (if (match-beginning 7) |
879 | (substring entry-main | |
e0cd68ee | 880 | (match-beginning 7) |
707c20a8 GM |
881 | (match-end 7)) |
882 | nil) | |
883 | (if (match-beginning 8) | |
884 | (substring entry-main | |
e0cd68ee | 885 | (match-beginning 8) |
707c20a8 GM |
886 | (match-end 8)) |
887 | nil))) | |
e0cd68ee | 888 | (summary (icalendar--convert-string-for-export |
707c20a8 GM |
889 | (substring entry-main (match-beginning 9) |
890 | (match-end 9))))) | |
891 | (when starttimestring | |
892 | (unless endtimestring | |
e0cd68ee GM |
893 | (let ((time (read (icalendar--rris "^T0?" "" |
894 | starttimestring)))) | |
707c20a8 GM |
895 | (setq endtimestring (format "T%06d" (+ 10000 time)))))) |
896 | (setq contents | |
897 | (concat "\nDTSTART" | |
898 | (if starttimestring "" ";VALUE=DATE") | |
899 | (format ":1900%02d%02d" month day) | |
900 | (or starttimestring "") | |
901 | "\nDTEND" | |
902 | (if endtimestring "" ";VALUE=DATE") | |
903 | (format ":1900%02d%02d" month day) | |
904 | (or endtimestring "") | |
905 | "\nSUMMARY:" summary | |
906 | "\nRRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=" | |
907 | (format "%2d" month) | |
908 | ";BYMONTHDAY=" | |
909 | (format "%2d" day) | |
910 | ))) | |
911 | (unless (string= entry-rest "") | |
912 | (setq contents (concat contents "\nDESCRIPTION:" | |
e0cd68ee | 913 | (icalendar--convert-string-for-export |
707c20a8 GM |
914 | entry-rest))))) |
915 | ;; "ordinary" events, start and end time given | |
916 | ;; 1 Feb 2003 Hs Hochzeitsfeier, Dreieich | |
917 | ((string-match | |
918 | (concat nonmarker | |
919 | "\\([^ /]+[ /]+[^ /]+[ /]+[^ ]+\\)\\s-+" | |
920 | "\\(0?\\([1-9][0-9]?:[0-9][0-9]\\)\\([ap]m\\)?" | |
921 | "\\(" | |
e0cd68ee GM |
922 | "-0?\\([1-9][0-9]?:[0-9][0-9]\\)\\([ap]m\\)?\\)?" |
923 | "\\)?" | |
707c20a8 GM |
924 | "\\s-*\\(.*\\)") |
925 | entry-main) | |
e0cd68ee GM |
926 | (icalendar--dmsg "ordinary %s" entry-main) |
927 | (let* ((datestring (icalendar--datestring-to-isodate | |
707c20a8 GM |
928 | (substring entry-main (match-beginning 1) |
929 | (match-end 1)))) | |
e0cd68ee | 930 | (starttimestring (icalendar--diarytime-to-isotime |
707c20a8 GM |
931 | (if (match-beginning 3) |
932 | (substring entry-main | |
933 | (match-beginning 3) | |
934 | (match-end 3)) | |
935 | nil) | |
936 | (if (match-beginning 4) | |
937 | (substring entry-main | |
938 | (match-beginning 4) | |
939 | (match-end 4)) | |
940 | nil))) | |
e0cd68ee | 941 | (endtimestring (icalendar--diarytime-to-isotime |
707c20a8 GM |
942 | (if (match-beginning 6) |
943 | (substring entry-main | |
e0cd68ee | 944 | (match-beginning 6) |
707c20a8 GM |
945 | (match-end 6)) |
946 | nil) | |
947 | (if (match-beginning 7) | |
948 | (substring entry-main | |
e0cd68ee | 949 | (match-beginning 7) |
707c20a8 GM |
950 | (match-end 7)) |
951 | nil))) | |
e0cd68ee | 952 | (summary (icalendar--convert-string-for-export |
707c20a8 GM |
953 | (substring entry-main (match-beginning 8) |
954 | (match-end 8))))) | |
955 | (when starttimestring | |
956 | (unless endtimestring | |
e0cd68ee GM |
957 | (let ((time (read (icalendar--rris "^T0?" "" |
958 | starttimestring)))) | |
707c20a8 GM |
959 | (setq endtimestring (format "T%06d" (+ 10000 time)))))) |
960 | (setq contents (format | |
e0cd68ee GM |
961 | "\nDTSTART%s:%s%s\nDTEND%s:%s%s\nSUMMARY:%s" |
962 | (if starttimestring "" ";VALUE=DATE") | |
963 | datestring | |
964 | (or starttimestring "") | |
965 | (if endtimestring "" | |
966 | ";VALUE=DATE") | |
967 | datestring | |
968 | (or endtimestring "") | |
969 | summary)) | |
707c20a8 GM |
970 | (unless (string= entry-rest "") |
971 | (setq contents (concat contents "\nDESCRIPTION:" | |
e0cd68ee | 972 | (icalendar--convert-string-for-export |
707c20a8 GM |
973 | entry-rest)))))) |
974 | ;; everything else | |
975 | (t | |
976 | ;; Oops! what's that? | |
977 | (setq oops t))) | |
978 | (if oops | |
979 | (message "Cannot export entry on line %d" | |
e0cd68ee | 980 | (count-lines (point-min) (point))) |
707c20a8 GM |
981 | (setq result (concat result header contents "\nEND:VEVENT")))) |
982 | ;; we're done, insert everything into the file | |
983 | (let ((coding-system-for-write 'utf8)) | |
984 | (set-buffer (find-file ical-filename)) | |
e0cd68ee GM |
985 | (goto-char (point-max)) |
986 | (insert "BEGIN:VCALENDAR") | |
987 | (insert "\nPRODID:-//Emacs//NONSGML icalendar.el//EN") | |
707c20a8 GM |
988 | (insert "\nVERSION:2.0") |
989 | (insert result) | |
990 | (insert "\nEND:VCALENDAR\n"))))) | |
991 | ||
707c20a8 | 992 | ;; ====================================================================== |
e0cd68ee | 993 | ;; Import -- convert icalendar to emacs-diary |
707c20a8 GM |
994 | ;; ====================================================================== |
995 | ||
e0cd68ee | 996 | ;; User function |
707c20a8 | 997 | (defun icalendar-import-file (ical-filename diary-filename |
e0cd68ee GM |
998 | &optional non-marking) |
999 | "Import a iCalendar file and append to a diary file. | |
707c20a8 GM |
1000 | Argument ICAL-FILENAME output iCalendar file. |
1001 | Argument DIARY-FILENAME input `diary-file'. | |
1002 | Optional argument NON-MARKING determines whether events are created as | |
e0cd68ee | 1003 | non-marking or not." |
707c20a8 | 1004 | (interactive "fImport iCalendar data from file: |
e0cd68ee | 1005 | Finto diary file: |
707c20a8 GM |
1006 | p") |
1007 | ;; clean up the diary file | |
1008 | (save-current-buffer | |
707c20a8 GM |
1009 | ;; now load and convert from the ical file |
1010 | (set-buffer (find-file ical-filename)) | |
e0cd68ee | 1011 | (icalendar-import-buffer diary-filename t non-marking))) |
707c20a8 | 1012 | |
e0cd68ee GM |
1013 | ;; User function |
1014 | (defun icalendar-import-buffer (&optional diary-file do-not-ask | |
1015 | non-marking) | |
707c20a8 GM |
1016 | "Extract iCalendar events from current buffer. |
1017 | ||
1018 | This function searches the current buffer for the first iCalendar | |
1019 | object, reads it and adds all VEVENT elements to the diary | |
1020 | DIARY-FILE. | |
1021 | ||
1022 | It will ask for each appointment whether to add it to the diary | |
1023 | when DO-NOT-ASK is non-nil. When called interactively, | |
1024 | DO-NOT-ASK is set to t, so that you are asked fore each event. | |
1025 | ||
1026 | NON-MARKING determines whether diary events are created as | |
1027 | non-marking. | |
1028 | ||
1029 | This function attempts to notify about problems that occur when | |
1030 | reading, parsing, or converting iCalendar data!" | |
1031 | (interactive) | |
1032 | (save-current-buffer | |
1033 | ;; prepare ical | |
1034 | (message "Preparing icalendar...") | |
e0cd68ee | 1035 | (set-buffer (icalendar--get-unfolded-buffer (current-buffer))) |
707c20a8 GM |
1036 | (goto-char (point-min)) |
1037 | (message "Preparing icalendar...done") | |
1038 | (if (re-search-forward "^BEGIN:VCALENDAR\\s-*$" nil t) | |
1039 | (let (ical-contents ical-errors) | |
1040 | ;; read ical | |
1041 | (message "Reading icalendar...") | |
1042 | (beginning-of-line) | |
e0cd68ee | 1043 | (setq ical-contents (icalendar--read-element nil nil)) |
707c20a8 GM |
1044 | (message "Reading icalendar...done") |
1045 | ;; convert ical | |
1046 | (message "Converting icalendar...") | |
e0cd68ee | 1047 | (setq ical-errors (icalendar--convert-ical-to-diary |
707c20a8 GM |
1048 | ical-contents |
1049 | diary-file do-not-ask non-marking)) | |
1050 | (when diary-file | |
1051 | ;; save the diary file | |
1052 | (save-current-buffer | |
1053 | (set-buffer (find-buffer-visiting diary-file)) | |
1054 | (save-buffer))) | |
1055 | (message "Converting icalendar...done") | |
1056 | (if (and ical-errors (y-or-n-p | |
e0cd68ee GM |
1057 | (concat "Something went wrong -- " |
1058 | "do you want to see the " | |
1059 | "error log? "))) | |
707c20a8 GM |
1060 | (switch-to-buffer " *icalendar-errors*"))) |
1061 | (message | |
1062 | "Current buffer does not contain icalendar contents!")))) | |
1063 | ||
e0cd68ee GM |
1064 | (defalias 'icalendar-extract-ical-from-buffer 'icalendar-import-buffer) |
1065 | ||
1066 | (make-obsolete 'icalendar-extract-ical-from-buffer 'icalendar-import-buffer | |
1067 | "icalendar 0.07") | |
1068 | ||
1069 | ;; ====================================================================== | |
707c20a8 | 1070 | ;; private area |
e0cd68ee GM |
1071 | ;; ====================================================================== |
1072 | ||
1073 | (defun icalendar--format-ical-event (event) | |
707c20a8 GM |
1074 | "Create a string representation of an iCalendar EVENT." |
1075 | (let ((string icalendar-import-format) | |
1076 | (conversion-list | |
1077 | '(("%d" DESCRIPTION icalendar-import-format-description) | |
1078 | ("%s" SUMMARY icalendar-import-format-subject) | |
1079 | ("%l" LOCATION icalendar-import-format-location) | |
1080 | ("%o" ORGANIZER icalendar-import-format-organizer)))) | |
1081 | ;; convert the specifiers in the format string | |
1082 | (mapcar (lambda (i) | |
1083 | (let* ((spec (car i)) | |
1084 | (prop (cadr i)) | |
1085 | (format (car (cddr i))) | |
e0cd68ee | 1086 | (contents (icalendar--get-event-property event prop)) |
707c20a8 | 1087 | (formatted-contents "")) |
707c20a8 GM |
1088 | (when (and contents (> (length contents) 0)) |
1089 | (setq formatted-contents | |
e0cd68ee GM |
1090 | (icalendar--rris "%s" |
1091 | (icalendar--convert-string-for-import | |
1092 | contents) | |
1093 | (symbol-value format)))) | |
1094 | (setq string (icalendar--rris spec | |
1095 | formatted-contents | |
1096 | string)))) | |
707c20a8 GM |
1097 | conversion-list) |
1098 | string)) | |
1099 | ||
e0cd68ee GM |
1100 | (defun icalendar--convert-ical-to-diary (ical-list diary-file |
1101 | &optional do-not-ask | |
1102 | non-marking) | |
707c20a8 GM |
1103 | "Convert an iCalendar file to an Emacs diary file. |
1104 | Import VEVENTS from the iCalendar object ICAL-LIST and saves them to a | |
1105 | DIARY-FILE. If DO-NOT-ASK is nil the user is asked for each event | |
1106 | whether to actually import it. NON-MARKING determines whether diary | |
1107 | events are created as non-marking. | |
1108 | This function attempts to return t if something goes wrong. In this | |
1109 | case an error string which describes all the errors and problems is | |
1110 | written into the buffer ` *icalendar-errors*'." | |
e0cd68ee | 1111 | (let* ((ev (icalendar--all-events ical-list)) |
707c20a8 GM |
1112 | (error-string "") |
1113 | (event-ok t) | |
1114 | (found-error nil) | |
1115 | e diary-string) | |
1116 | ;; step through all events/appointments | |
1117 | (while ev | |
1118 | (setq e (car ev)) | |
1119 | (setq ev (cdr ev)) | |
1120 | (setq event-ok nil) | |
1121 | (condition-case error-val | |
e0cd68ee GM |
1122 | (let* ((dtstart (icalendar--decode-isodatetime |
1123 | (icalendar--get-event-property e 'DTSTART))) | |
707c20a8 | 1124 | (start-d (calendar-date-string |
e0cd68ee GM |
1125 | (icalendar--datetime-to-noneuropean-date |
1126 | dtstart) | |
707c20a8 | 1127 | t t)) |
e0cd68ee GM |
1128 | (start-t (icalendar--datetime-to-colontime dtstart)) |
1129 | (dtend (icalendar--decode-isodatetime | |
1130 | (icalendar--get-event-property e 'DTEND))) | |
707c20a8 GM |
1131 | end-d |
1132 | end-t | |
e0cd68ee GM |
1133 | (subject (icalendar--convert-string-for-import |
1134 | (or (icalendar--get-event-property e 'SUMMARY) | |
707c20a8 | 1135 | "No Subject"))) |
e0cd68ee GM |
1136 | (rrule (icalendar--get-event-property e 'RRULE)) |
1137 | (rdate (icalendar--get-event-property e 'RDATE)) | |
1138 | (duration (icalendar--get-event-property e 'DURATION))) | |
1139 | (icalendar--dmsg "%s: %s" start-d subject) | |
707c20a8 | 1140 | (when duration |
e0cd68ee | 1141 | (let ((dtend2 (icalendar--add-decoded-times |
707c20a8 | 1142 | dtstart |
e0cd68ee | 1143 | (icalendar--decode-isoduration duration)))) |
707c20a8 GM |
1144 | (if (and dtend (not (eq dtend dtend2))) |
1145 | (message "Inconsistent endtime and duration for %s" | |
1146 | subject)) | |
1147 | (setq dtend dtend2))) | |
1148 | (setq end-d (if dtend | |
1149 | (calendar-date-string | |
e0cd68ee GM |
1150 | (icalendar--datetime-to-noneuropean-date |
1151 | dtend) | |
707c20a8 GM |
1152 | t t) |
1153 | start-d)) | |
1154 | (setq end-t (if dtend | |
e0cd68ee | 1155 | (icalendar--datetime-to-colontime dtend) |
707c20a8 | 1156 | start-t)) |
e0cd68ee | 1157 | (icalendar--dmsg "start-d: %s, end-d: %s" start-d end-d) |
707c20a8 GM |
1158 | (cond |
1159 | ;; recurring event | |
1160 | (rrule | |
e0cd68ee GM |
1161 | (icalendar--dmsg "recurring event") |
1162 | (let* ((rrule-props (icalendar--split-value rrule)) | |
707c20a8 GM |
1163 | (frequency (car (cdr (assoc 'FREQ rrule-props)))) |
1164 | (until (car (cdr (assoc 'UNTIL rrule-props)))) | |
1165 | (interval (read (car (cdr (assoc 'INTERVAL | |
e0cd68ee | 1166 | rrule-props)))))) |
707c20a8 GM |
1167 | (cond ((string-equal frequency "WEEKLY") |
1168 | (if (not start-t) | |
1169 | (progn | |
1170 | ;; weekly and all-day | |
e0cd68ee | 1171 | (icalendar--dmsg "weekly all-day") |
707c20a8 GM |
1172 | (setq diary-string |
1173 | (format | |
e0cd68ee GM |
1174 | "%%%%(diary-cyclic %d %s)" |
1175 | (* interval 7) | |
1176 | (icalendar--datetime-to-european-date | |
1177 | dtstart)))) | |
707c20a8 GM |
1178 | ;; weekly and not all-day |
1179 | (let* ((byday (cadr (assoc 'BYDAY rrule-props))) | |
1180 | (weekday | |
f2aa5449 | 1181 | (icalendar--get-weekday-number byday))) |
e0cd68ee | 1182 | (icalendar--dmsg "weekly not-all-day") |
f2aa5449 | 1183 | (if (> weekday -1) |
707c20a8 | 1184 | (setq diary-string |
f2aa5449 GM |
1185 | (format "%s %s%s%s" |
1186 | (aref calendar-day-name-array | |
1187 | weekday) | |
707c20a8 GM |
1188 | start-t (if end-t "-" "") |
1189 | (or end-t ""))) | |
1190 | ;; FIXME!!!! | |
1191 | ;; DTSTART;VALUE=DATE-TIME:20030919T090000 | |
1192 | ;; DTEND;VALUE=DATE-TIME:20030919T113000 | |
1193 | (setq diary-string | |
1194 | (format | |
e0cd68ee GM |
1195 | "%%%%(diary-cyclic %s %s) %s%s%s" |
1196 | (* interval 7) | |
1197 | (icalendar--datetime-to-european-date | |
1198 | dtstart) | |
1199 | start-t (if end-t "-" "") (or end-t "")))) | |
707c20a8 GM |
1200 | (setq event-ok t)))) |
1201 | ;; yearly | |
1202 | ((string-equal frequency "YEARLY") | |
e0cd68ee | 1203 | (icalendar--dmsg "yearly") |
707c20a8 GM |
1204 | (setq diary-string |
1205 | (format | |
e0cd68ee GM |
1206 | "%%%%(diary-anniversary %s)" |
1207 | (icalendar--datetime-to-european-date dtstart))) | |
707c20a8 GM |
1208 | (setq event-ok t)) |
1209 | ;; FIXME: war auskommentiert: | |
1210 | ((and (string-equal frequency "DAILY") | |
1211 | ;;(not (string= start-d end-d)) | |
1212 | ;;(not start-t) | |
1213 | ;;(not end-t) | |
1214 | ) | |
e0cd68ee GM |
1215 | (let ((ds (icalendar--datetime-to-noneuropean-date |
1216 | (icalendar--decode-isodatetime | |
1217 | (icalendar--get-event-property e | |
1218 | 'DTSTART)))) | |
1219 | (de (icalendar--datetime-to-noneuropean-date | |
1220 | (icalendar--decode-isodatetime | |
707c20a8 GM |
1221 | until)))) |
1222 | (setq diary-string | |
1223 | (format | |
e0cd68ee GM |
1224 | "%%%%(diary-block %d %d %d %d %d %d)" |
1225 | (nth 1 ds) (nth 0 ds) (nth 2 ds) | |
1226 | (nth 1 de) (nth 0 de) (nth 2 de)))) | |
707c20a8 GM |
1227 | (setq event-ok t))) |
1228 | )) | |
1229 | (rdate | |
e0cd68ee | 1230 | (icalendar--dmsg "rdate event") |
707c20a8 GM |
1231 | (setq diary-string "") |
1232 | (mapcar (lambda (datestring) | |
1233 | (setq diary-string | |
1234 | (concat diary-string | |
1235 | (format "......")))) | |
e0cd68ee | 1236 | (icalendar--split-value rdate))) |
707c20a8 GM |
1237 | ;; non-recurring event |
1238 | ;; long event | |
1239 | ((not (string= start-d end-d)) | |
e0cd68ee GM |
1240 | (icalendar--dmsg "non-recurring event") |
1241 | (let ((ds (icalendar--datetime-to-noneuropean-date dtstart)) | |
1242 | (de (icalendar--datetime-to-noneuropean-date dtend))) | |
707c20a8 GM |
1243 | (setq diary-string |
1244 | (format "%%%%(diary-block %d %d %d %d %d %d)" | |
1245 | (nth 1 ds) (nth 0 ds) (nth 2 ds) | |
1246 | (nth 1 de) (nth 0 de) (nth 2 de)))) | |
1247 | (setq event-ok t)) | |
1248 | ;; not all-day | |
1249 | ((and start-t (or (not end-t) | |
1250 | (not (string= start-t end-t)))) | |
e0cd68ee | 1251 | (icalendar--dmsg "not all day event") |
707c20a8 GM |
1252 | (cond (end-t |
1253 | (setq diary-string (format "%s %s-%s" start-d | |
e0cd68ee | 1254 | start-t end-t))) |
707c20a8 GM |
1255 | (t |
1256 | (setq diary-string (format "%s %s" start-d | |
e0cd68ee | 1257 | start-t)))) |
707c20a8 GM |
1258 | (setq event-ok t)) |
1259 | ;; all-day event | |
1260 | (t | |
e0cd68ee | 1261 | (icalendar--dmsg "all day event") |
707c20a8 GM |
1262 | (setq diary-string start-d) |
1263 | (setq event-ok t))) | |
1264 | ;; add all other elements unless the user doesn't want to have | |
1265 | ;; them | |
1266 | (if event-ok | |
1267 | (progn | |
1268 | (setq diary-string | |
e0cd68ee GM |
1269 | (concat diary-string " " |
1270 | (icalendar--format-ical-event e))) | |
707c20a8 | 1271 | (if do-not-ask (setq subject nil)) |
e0cd68ee GM |
1272 | (icalendar--add-diary-entry diary-string diary-file |
1273 | non-marking subject)) | |
707c20a8 GM |
1274 | ;; event was not ok |
1275 | (setq found-error t) | |
1276 | (setq error-string | |
e0cd68ee GM |
1277 | (format "%s\nCannot handle this event:%s" |
1278 | error-string e)))) | |
707c20a8 GM |
1279 | ;; handle errors |
1280 | (error | |
1281 | (message "Ignoring event \"%s\"" e) | |
1282 | (setq found-error t) | |
1283 | (setq error-string (format "%s\nCannot handle this event: %s" | |
1284 | error-string e))))) | |
1285 | (if found-error | |
1286 | (save-current-buffer | |
1287 | (set-buffer (get-buffer-create " *icalendar-errors*")) | |
1288 | (erase-buffer) | |
1289 | (insert error-string))) | |
1290 | (message "Converting icalendar...done") | |
1291 | found-error)) | |
1292 | ||
e0cd68ee GM |
1293 | (defun icalendar--add-diary-entry (string diary-file non-marking |
1294 | &optional subject) | |
707c20a8 GM |
1295 | "Add STRING to the diary file DIARY-FILE. |
1296 | STRING must be a properly formatted valid diary entry. NON-MARKING | |
1297 | determines whether diary events are created as non-marking. If | |
1298 | SUBJECT is not nil it must be a string that gives the subject of the | |
1299 | entry. In this case the user will be asked whether he wants to insert | |
1300 | the entry." | |
e0cd68ee | 1301 | (when (or (not subject) ; |
707c20a8 | 1302 | (y-or-n-p (format "Add appointment for `%s' to diary? " |
e0cd68ee | 1303 | subject))) |
707c20a8 GM |
1304 | (when subject |
1305 | (setq non-marking | |
1306 | (y-or-n-p (format "Make appointment non-marking? ")))) | |
1307 | (save-window-excursion | |
1308 | (unless diary-file | |
1309 | (setq diary-file | |
1310 | (read-file-name "Add appointment to this diary file: "))) | |
1311 | (make-diary-entry string non-marking diary-file)))) | |
1312 | ||
707c20a8 GM |
1313 | (provide 'icalendar) |
1314 | ||
a13bc064 | 1315 | ;; arch-tag: 74fdbe8e-0451-4e38-bb61-4416e822f4fc |
707c20a8 | 1316 | ;;; icalendar.el ends here |