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9565745a | 1 | ;;; time-stamp.el --- Maintain last change time stamps in files edited by Emacs |
9565745a | 2 | |
b578f267 EN |
3 | ;; Copyright 1989, 1993, 1994, 1995 Free Software Foundation, Inc. |
4 | ||
03d7856a | 5 | ;; Maintainer's Time-stamp: <1996-08-13 14:03:17 gildea> |
9565745a | 6 | ;; Maintainer: Stephen Gildea <gildea@lcs.mit.edu> |
9565745a RS |
7 | ;; Keywords: tools |
8 | ||
9 | ;; This file is free software; you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published by | |
11 | ;; the Free Software Foundation; either version 2, or (at your option) | |
12 | ;; any later version. | |
13 | ||
14 | ;; This file is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
20 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
21 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | ;; Boston, MA 02111-1307, USA. | |
9565745a RS |
23 | |
24 | ;;; Commentary: | |
25 | ||
03d7856a KH |
26 | ;; A template in a file can be updated with a new time stamp when |
27 | ;; you save the file. For example: | |
28 | ;; static char *ts = "sdmain.c Time-stamp: <1996-08-13 10:20:51 gildea>"; | |
29 | ;; See the top of `time-stamp.el' for another example. | |
30 | ||
31 | ;; To use time-stamping, add this line to your .emacs file: | |
32 | ;; (add-hook 'write-file-hooks 'time-stamp) | |
33 | ;; Now any time-stamp templates in your files will be updated automatically. | |
34 | ||
35 | ;; See the documentation for the functions `time-stamp' | |
36 | ;; and `time-stamp-toggle-active' for details. | |
b578f267 | 37 | |
717e06e5 | 38 | ;;; Change Log: |
b578f267 EN |
39 | |
40 | ;; Originally based on the 19 Dec 88 version of | |
41 | ;; date.el by John Sturdy <mcvax!harlqn.co.uk!jcgs@uunet.uu.net> | |
03d7856a | 42 | ;; Version 2, January 1995: replaced functions with %-escapes |
b24173f7 | 43 | ;; $Id: time-stamp.el,v 1.19 1996/09/22 22:20:58 kwzh Exp rms $ |
9565745a RS |
44 | |
45 | ;;; Code: | |
46 | ||
47 | (defvar time-stamp-active t | |
f8d35bf3 | 48 | "*Non-nil to enable time-stamping of buffers by \\[time-stamp]. |
b1defad2 | 49 | Can be toggled by \\[time-stamp-toggle-active]. |
03d7856a | 50 | See also the variable `time-stamp-warn-inactive'.") |
b1defad2 RS |
51 | |
52 | (defvar time-stamp-warn-inactive t | |
03d7856a KH |
53 | "Non-nil to have \\[time-stamp] warn if a buffer did not get time-stamped. |
54 | A warning is printed if `time-stamp-active' is nil and the buffer contains | |
f8d35bf3 | 55 | a time stamp template that would otherwise have been updated.") |
b1defad2 | 56 | |
03d7856a KH |
57 | (defvar time-stamp-old-format-warn 'ask |
58 | "Action to take if `time-stamp-format' is an old-style list. | |
59 | If 'error, the format is not used. If 'ask, the user is queried about | |
60 | using the time-stamp-format. If 'warn, a warning is displayed. | |
61 | If nil, no notification is given.") | |
62 | ||
63 | (defvar time-stamp-format "%y-%02m-%02d %02H:%02M:%02S %u" | |
64 | "*Format of the string inserted by \\[time-stamp]. | |
b1defad2 | 65 | Value may be a string or a list. (Lists are supported only for |
03d7856a KH |
66 | backward compatibility; see variable `time-stamp-old-format-warn'.) |
67 | A string is used verbatim except for character sequences beginning with %: | |
f8d35bf3 KH |
68 | |
69 | %a weekday name: `Monday'. %A gives uppercase: `MONDAY' | |
70 | %b month name: `January'. %B gives uppercase: `JANUARY' | |
71 | %d day of month | |
72 | %H 24-hour clock hour | |
73 | %I 12-hour clock hour | |
74 | %m month number | |
75 | %M minute | |
76 | %p `am' or `pm'. %P gives uppercase: `AM' or `PM' | |
77 | %S seconds | |
78 | %w day number of week, Sunday is 0 | |
79 | %y year: `1995' | |
80 | %z time zone name: `est'. %Z gives uppercase: `EST' | |
81 | ||
82 | Non-date items: | |
83 | %% a literal percent character: `%' | |
84 | %f file name without directory %F gives absolute pathname | |
85 | %s system name | |
86 | %u user's login name | |
87 | %h mail host name | |
88 | ||
89 | Decimal digits between the % and the type character specify the | |
90 | field width. Strings are truncated on the right; numbers on the left. | |
91 | A leading zero causes numbers to be zero-filled. | |
92 | ||
93 | For example, to get the format used by the `date' command, | |
94 | use \"%3a %3b %2d %02H:%02M:%02S %Z %y\"") | |
9565745a | 95 | |
9565745a | 96 | |
03d7856a | 97 | |
9565745a RS |
98 | ;;; Do not change time-stamp-line-limit, time-stamp-start, or |
99 | ;;; time-stamp-end in your .emacs or you will be incompatible | |
100 | ;;; with other people's files! If you must change them, | |
101 | ;;; do so only in the local variables section of the file itself. | |
102 | ||
03d7856a | 103 | |
e1f40b28 | 104 | (defvar time-stamp-line-limit 8 ;Do not change! |
c7c4ddd4 | 105 | "Lines of a file searched; positive counts from start, negative from end. |
e1f40b28 | 106 | The patterns `time-stamp-start' and `time-stamp-end' must be found on one |
c7c4ddd4 KH |
107 | of the first (last) `time-stamp-line-limit' lines of the file for the |
108 | file to be time-stamped by \\[time-stamp]. | |
e1f40b28 RS |
109 | |
110 | Do not change `time-stamp-line-limit', `time-stamp-start', or | |
111 | `time-stamp-end' for yourself or you will be incompatible | |
112 | with other people's files! If you must change them for some application, | |
113 | do so in the local variables section of the time-stamped file itself.") | |
114 | ||
9565745a | 115 | |
36081614 | 116 | (defvar time-stamp-start "Time-stamp:[ \t]+\\\\?[\"<]+" ;Do not change! |
9565745a | 117 | "Regexp after which the time stamp is written by \\[time-stamp]. |
e1f40b28 | 118 | See also the variables `time-stamp-end' and `time-stamp-line-limit'. |
9565745a | 119 | |
e1f40b28 RS |
120 | Do not change `time-stamp-line-limit', `time-stamp-start', or |
121 | `time-stamp-end' for yourself or you will be incompatible | |
9565745a RS |
122 | with other people's files! If you must change them for some application, |
123 | do so in the local variables section of the time-stamped file itself.") | |
124 | ||
125 | ||
e1f40b28 | 126 | (defvar time-stamp-end "\\\\?[\">]" ;Do not change! |
9565745a | 127 | "Regexp marking the text after the time stamp. |
e1f40b28 RS |
128 | \\[time-stamp] deletes the text between the first match of `time-stamp-start' |
129 | and the following match of `time-stamp-end' on the same line, | |
130 | then writes the time stamp specified by `time-stamp-format' between them. | |
131 | ||
132 | Do not change `time-stamp-line-limit', `time-stamp-start', or | |
133 | `time-stamp-end' for yourself or you will be incompatible | |
134 | with other people's files! If you must change them for some application, | |
135 | do so in the local variables section of the time-stamped file itself.") | |
136 | ||
9565745a | 137 | |
03d7856a | 138 | |
59b644e8 | 139 | ;;;###autoload |
9565745a RS |
140 | (defun time-stamp () |
141 | "Update the time stamp string in the buffer. | |
03d7856a KH |
142 | A template in a file can be automatically updated with a new time stamp |
143 | every time you save the file. Add this line to your .emacs file: | |
144 | (add-hook 'write-file-hooks 'time-stamp) | |
145 | Normally the template must appear in the first 8 lines of a file and | |
146 | look like one of the following: | |
147 | Time-stamp: <> | |
148 | Time-stamp: \" \" | |
149 | The time stamp is written between the brackets or quotes: | |
150 | Time-stamp: <1996-07-18 10:20:51 gildea> | |
151 | Only updates the time stamp if the variable `time-stamp-active' is non-nil. | |
152 | The format of the time stamp is set by the variable `time-stamp-format'. | |
153 | The variables `time-stamp-line-limit', `time-stamp-start', | |
154 | and `time-stamp-end' control finding the template." | |
9565745a | 155 | (interactive) |
fe8287c6 | 156 | (let ((case-fold-search nil) |
03d7856a KH |
157 | (start nil) |
158 | (end nil) | |
159 | search-limit) | |
fe8287c6 KH |
160 | (save-excursion |
161 | (save-restriction | |
162 | (widen) | |
03d7856a KH |
163 | (cond ((> time-stamp-line-limit 0) |
164 | (goto-char (setq start (point-min))) | |
165 | (forward-line time-stamp-line-limit) | |
166 | (setq search-limit (point))) | |
167 | (t | |
168 | (goto-char (setq search-limit (point-max))) | |
169 | (forward-line time-stamp-line-limit) | |
170 | (setq start (point)))) | |
c7c4ddd4 | 171 | (goto-char start) |
03d7856a KH |
172 | (while (and (< (point) search-limit) |
173 | (not end) | |
174 | (re-search-forward time-stamp-start search-limit 'move)) | |
c7c4ddd4 KH |
175 | (setq start (point)) |
176 | (end-of-line) | |
177 | (let ((line-end (point))) | |
178 | (goto-char start) | |
179 | (if (re-search-forward time-stamp-end line-end 'move) | |
03d7856a KH |
180 | (setq end (match-beginning 0))))))) |
181 | (if end | |
182 | (progn | |
183 | ;; do all warnings outside save-excursion | |
184 | (cond | |
185 | ((not time-stamp-active) | |
186 | (if time-stamp-warn-inactive | |
187 | ;; don't signal an error in a write-file-hook | |
c7c4ddd4 | 188 | (progn |
03d7856a KH |
189 | (message "Warning: time-stamp-active is off; did not time-stamp buffer.") |
190 | (sit-for 1)))) | |
191 | ((not (and (stringp time-stamp-start) | |
192 | (stringp time-stamp-end))) | |
193 | (message "time-stamp-start or time-stamp-end is not a string") | |
194 | (sit-for 1)) | |
195 | (t | |
196 | (let ((new-time-stamp (time-stamp-string))) | |
197 | (if (stringp new-time-stamp) | |
198 | (save-excursion | |
199 | (save-restriction | |
200 | (widen) | |
201 | (delete-region start end) | |
202 | (goto-char start) | |
203 | (insert new-time-stamp) | |
204 | (setq end (point)) | |
205 | ;; remove any tabs used to format time stamp | |
206 | (goto-char start) | |
207 | (if (search-forward "\t" end t) | |
208 | (untabify start end))))))))))) | |
9565745a RS |
209 | ;; be sure to return nil so can be used on write-file-hooks |
210 | nil) | |
211 | ||
b1defad2 RS |
212 | ;;;###autoload |
213 | (defun time-stamp-toggle-active (&optional arg) | |
03d7856a | 214 | "Toggle `time-stamp-active', setting whether \\[time-stamp] updates a buffer. |
b1defad2 RS |
215 | With arg, turn time stamping on if and only if arg is positive." |
216 | (interactive "P") | |
217 | (setq time-stamp-active | |
218 | (if (null arg) | |
219 | (not time-stamp-active) | |
220 | (> (prefix-numeric-value arg) 0))) | |
221 | (message "time-stamp is now %s." (if time-stamp-active "active" "off"))) | |
03d7856a | 222 | |
b1defad2 | 223 | |
9565745a RS |
224 | (defun time-stamp-string () |
225 | "Generate the new string to be inserted by \\[time-stamp]." | |
b1defad2 RS |
226 | (if (stringp time-stamp-format) |
227 | (time-stamp-strftime time-stamp-format) | |
03d7856a KH |
228 | ;; handle version 1 compatibility |
229 | (cond ((or (eq time-stamp-old-format-warn 'error) | |
230 | (and (eq time-stamp-old-format-warn 'ask) | |
231 | (not (y-or-n-p "Use non-string time-stamp-format? ")))) | |
232 | (message "Warning: no time-stamp: time-stamp-format not a string") | |
233 | (sit-for 1) | |
234 | nil) | |
235 | (t | |
236 | (cond ((eq time-stamp-old-format-warn 'warn) | |
237 | (message "Obsolescent time-stamp-format type; should be string") | |
238 | (sit-for 1))) | |
239 | (time-stamp-fconcat time-stamp-format " "))))) | |
b1defad2 | 240 | |
1f92d7ef KH |
241 | (defconst time-stamp-month-numbers |
242 | '(("Jan" . 1) ("Feb" . 2) ("Mar" . 3) ("Apr" . 4) ("May" . 5) ("Jun" . 6) | |
243 | ("Jul" . 7) ("Aug" . 8) ("Sep" . 9) ("Oct" . 10) ("Nov" . 11) ("Dec" . 12)) | |
244 | "Alist of months and their number.") | |
245 | ||
246 | (defconst time-stamp-month-full-names | |
247 | ["(zero)" "January" "February" "March" "April" "May" "June" | |
248 | "July" "August" "September" "October" "November" "December"]) | |
249 | ||
250 | (defconst time-stamp-weekday-numbers | |
251 | '(("Sun" . 0) ("Mon" . 1) ("Tue" . 2) ("Wed" . 3) | |
252 | ("Thu" . 4) ("Fri" . 5) ("Sat" . 6)) | |
253 | "Alist of weekdays and their number.") | |
254 | ||
255 | (defconst time-stamp-weekday-full-names | |
256 | ["Sunday" "Monday" "Tuesday" "Wednesday" "Thursday" "Friday" "Saturday"]) | |
257 | ||
c7c4ddd4 KH |
258 | (defconst time-stamp-am-pm '("am" "pm") |
259 | "List of strings used to denote morning and afternoon.") | |
260 | ||
261 | (defconst time-stamp-no-file "(no file)" | |
262 | "String to use when the buffer is not associated with a file.") | |
263 | ||
b1defad2 RS |
264 | (defun time-stamp-strftime (format &optional time) |
265 | "Uses a FORMAT to format date, time, file, and user information. | |
266 | Optional second argument TIME will be used instead of the current time. | |
03d7856a | 267 | See the documentation of the variable `time-stamp-format' for a description |
f8d35bf3 | 268 | of the format string." |
b1defad2 RS |
269 | (let ((time-string (cond ((stringp time) |
270 | time) | |
271 | (time | |
272 | (current-time-string time)) | |
273 | (t | |
274 | (current-time-string)))) | |
275 | (fmt-len (length format)) | |
276 | (ind 0) | |
277 | cur-char | |
f8d35bf3 | 278 | (prev-char nil) |
b1defad2 RS |
279 | (result "") |
280 | field-index | |
281 | field-width | |
f8d35bf3 KH |
282 | field-result |
283 | (paren-level 0)) | |
b1defad2 RS |
284 | (while (< ind fmt-len) |
285 | (setq cur-char (aref format ind)) | |
286 | (setq | |
287 | result | |
03d7856a | 288 | (concat result |
b1defad2 | 289 | (cond |
f8d35bf3 | 290 | ((eq cur-char ?%) |
b1defad2 RS |
291 | (setq field-index (1+ ind)) |
292 | (while (progn | |
293 | (setq ind (1+ ind)) | |
f8d35bf3 KH |
294 | (setq cur-char (if (< ind fmt-len) |
295 | (aref format ind) | |
296 | ?\0)) | |
b1defad2 RS |
297 | (and (<= ?0 cur-char) (>= ?9 cur-char)))) |
298 | (setq field-width (substring format field-index ind)) | |
f8d35bf3 KH |
299 | ;; eat any additional args to allow for future expansion |
300 | (while (or (and (<= ?0 cur-char) (>= ?9 cur-char)) (eq ?. cur-char) | |
301 | (eq ?, cur-char) (eq ?: cur-char) (eq ?@ cur-char) | |
302 | (eq ?- cur-char) (eq ?+ cur-char) | |
303 | (eq ?\ cur-char) (eq ?# cur-char) | |
304 | (and (eq ?\( cur-char) | |
305 | (not (eq prev-char ?\\)) | |
306 | (setq paren-level (1+ paren-level))) | |
307 | (if (and (eq ?\) cur-char) | |
308 | (not (eq prev-char ?\\)) | |
309 | (> paren-level 0)) | |
310 | (setq paren-level (1- paren-level)) | |
311 | (and (> paren-level 0) | |
312 | (< ind fmt-len)))) | |
313 | (setq ind (1+ ind)) | |
314 | (setq prev-char cur-char) | |
315 | (setq cur-char (if (< ind fmt-len) | |
316 | (aref format ind) | |
317 | ?\0))) | |
b1defad2 RS |
318 | (setq field-result |
319 | (cond | |
320 | ((eq cur-char ?%) | |
321 | "%") | |
322 | ((or (eq cur-char ?a) ;weekday name | |
323 | (eq cur-char ?A)) | |
324 | (let ((name | |
325 | (aref time-stamp-weekday-full-names | |
326 | (cdr (assoc (substring time-string 0 3) | |
327 | time-stamp-weekday-numbers))))) | |
328 | (if (eq cur-char ?a) | |
329 | name | |
330 | (upcase name)))) | |
331 | ((or (eq cur-char ?b) ;month name | |
332 | (eq cur-char ?B)) | |
333 | (let ((name | |
334 | (aref time-stamp-month-full-names | |
335 | (cdr (assoc (substring time-string 4 7) | |
336 | time-stamp-month-numbers))))) | |
337 | (if (eq cur-char ?b) | |
338 | name | |
339 | (upcase name)))) | |
340 | ((eq cur-char ?d) ;day of month, 1-31 | |
341 | (string-to-int (substring time-string 8 10))) | |
342 | ((eq cur-char ?H) ;hour, 0-23 | |
343 | (string-to-int (substring time-string 11 13))) | |
344 | ((eq cur-char ?I) ;hour, 1-12 | |
345 | (let ((hour (string-to-int (substring time-string 11 13)))) | |
346 | (cond ((< hour 1) | |
347 | (+ hour 12)) | |
348 | ((> hour 12) | |
349 | (- hour 12)) | |
350 | (t | |
351 | hour)))) | |
352 | ((eq cur-char ?m) ;month number, 1-12 | |
353 | (cdr (assoc (substring time-string 4 7) | |
354 | time-stamp-month-numbers))) | |
355 | ((eq cur-char ?M) ;minute, 0-59 | |
356 | (string-to-int (substring time-string 14 16))) | |
357 | ((or (eq cur-char ?p) ;am or pm | |
358 | (eq cur-char ?P)) | |
359 | (let ((name | |
360 | (if (> 12 (string-to-int (substring time-string 11 13))) | |
c7c4ddd4 KH |
361 | (car time-stamp-am-pm) |
362 | (car (cdr time-stamp-am-pm))))) | |
b1defad2 RS |
363 | (if (eq cur-char ?p) |
364 | name | |
365 | (upcase name)))) | |
366 | ((eq cur-char ?S) ;seconds, 00-60 | |
367 | (string-to-int (substring time-string 17 19))) | |
368 | ((eq cur-char ?w) ;weekday number, Sunday is 0 | |
369 | (cdr (assoc (substring time-string 0 3) time-stamp-weekday-numbers))) | |
370 | ((eq cur-char ?y) ;year | |
371 | (string-to-int (substring time-string -4))) | |
372 | ((or (eq cur-char ?z) ;time zone | |
373 | (eq cur-char ?Z)) | |
374 | (let ((name | |
375 | (if (fboundp 'current-time-zone) | |
376 | (car (cdr (current-time-zone time)))))) | |
377 | (or name (setq name "")) | |
378 | (if (eq cur-char ?z) | |
379 | (downcase name) | |
380 | (upcase name)))) | |
381 | ((eq cur-char ?f) ;buffer-file-name, base name only | |
382 | (if buffer-file-name | |
383 | (file-name-nondirectory buffer-file-name) | |
c7c4ddd4 | 384 | time-stamp-no-file)) |
b1defad2 RS |
385 | ((eq cur-char ?F) ;buffer-file-name, full path |
386 | (or buffer-file-name | |
c7c4ddd4 | 387 | time-stamp-no-file)) |
b1defad2 RS |
388 | ((eq cur-char ?s) ;system name |
389 | (system-name)) | |
390 | ((eq cur-char ?u) ;user name | |
391 | (user-login-name)) | |
392 | ((eq cur-char ?h) ;mail host name | |
393 | (time-stamp-mail-host-name)) | |
394 | )) | |
395 | (if (string-equal field-width "") | |
396 | field-result | |
397 | (let ((padded-result | |
398 | (format (format "%%%s%c" | |
399 | field-width | |
400 | (if (numberp field-result) ?d ?s)) | |
401 | (or field-result "")))) | |
402 | (let ((initial-length (length padded-result)) | |
403 | (desired-length (string-to-int field-width))) | |
404 | (if (> initial-length desired-length) | |
405 | ;; truncate strings on right, numbers on left | |
406 | (if (stringp field-result) | |
407 | (substring padded-result 0 desired-length) | |
408 | (substring padded-result (- desired-length))) | |
409 | padded-result))))) | |
410 | (t | |
411 | (char-to-string cur-char))))) | |
412 | (setq ind (1+ ind))) | |
413 | result)) | |
414 | ||
b1defad2 RS |
415 | (defun time-stamp-mail-host-name () |
416 | "Return the name of the host where the user receives mail. | |
417 | This is the value of `mail-host-address' if bound and a string, | |
418 | otherwise the value of `time-stamp-mail-host' (for versions of Emacs | |
c7c4ddd4 | 419 | before 19.29) otherwise the value of the function system-name." |
b1defad2 RS |
420 | (or (and (boundp 'mail-host-address) |
421 | (stringp mail-host-address) | |
422 | mail-host-address) | |
423 | (and (boundp 'time-stamp-mail-host) ;for backward compatibility | |
424 | (stringp time-stamp-mail-host) | |
425 | time-stamp-mail-host) | |
426 | (system-name))) | |
427 | ||
428 | ;;; the rest of this file is for version 1 compatibility | |
9565745a RS |
429 | |
430 | (defun time-stamp-fconcat (list sep) | |
e1f40b28 | 431 | "Similar to (mapconcat 'funcall LIST SEP) but LIST allows literals. |
9565745a RS |
432 | If an element of LIST is a symbol, it is funcalled to get the string to use; |
433 | the separator SEP is used between two strings obtained by funcalling a | |
434 | symbol. Otherwise the element itself is inserted; no separator is used | |
435 | around literals." | |
436 | (let ((return-string "") | |
437 | (insert-sep-p nil)) | |
438 | (while list | |
439 | (cond ((symbolp (car list)) | |
440 | (if insert-sep-p | |
441 | (setq return-string (concat return-string sep))) | |
442 | (setq return-string (concat return-string (funcall (car list)))) | |
443 | (setq insert-sep-p t)) | |
444 | (t | |
445 | (setq return-string (concat return-string (car list))) | |
446 | (setq insert-sep-p nil))) | |
447 | (setq list (cdr list))) | |
448 | return-string)) | |
449 | ||
03d7856a | 450 | ;;; Some functions used in time-stamp-format |
9565745a RS |
451 | |
452 | ;;; Could generate most of a message-id with | |
e1f40b28 | 453 | ;;; '(time-stamp-yymmdd "" time-stamp-hhmm "@" time-stamp-mail-host-name) |
9565745a | 454 | |
9565745a RS |
455 | ;;; pretty form, suitable for a title page |
456 | ||
457 | (defun time-stamp-month-dd-yyyy () | |
e1f40b28 | 458 | "Return the current date as a string in \"Month DD, YYYY\" form." |
9565745a | 459 | (let ((date (current-time-string))) |
579cc01c | 460 | (format "%s %d, %s" |
9565745a RS |
461 | (aref time-stamp-month-full-names |
462 | (cdr (assoc (substring date 4 7) time-stamp-month-numbers))) | |
463 | (string-to-int (substring date 8 10)) | |
464 | (substring date -4)))) | |
465 | ||
b24173f7 RS |
466 | (defun time-stamp-dd/mm/yyyy () |
467 | "Return the current date as a string in \"DD/MM/YYYY\" form." | |
468 | (let ((date (current-time-string))) | |
469 | (format "%02d/%02d/%s" | |
470 | (string-to-int (substring date 8 10)) | |
471 | (cdr (assoc (substring date 4 7) time-stamp-month-numbers)) | |
472 | (substring date -4) ))) | |
473 | ||
9565745a RS |
474 | ;;; same as __DATE__ in ANSI C |
475 | ||
476 | (defun time-stamp-mon-dd-yyyy () | |
e1f40b28 RS |
477 | "Return the current date as a string in \"Mon DD YYYY\" form. |
478 | The first character of DD is space if the value is less than 10." | |
9565745a RS |
479 | (let ((date (current-time-string))) |
480 | (format "%s %2d %s" | |
481 | (substring date 4 7) | |
482 | (string-to-int (substring date 8 10)) | |
483 | (substring date -4)))) | |
484 | ||
485 | ;;; RFC 822 date | |
486 | ||
487 | (defun time-stamp-dd-mon-yy () | |
e1f40b28 | 488 | "Return the current date as a string in \"DD Mon YY\" form." |
9565745a RS |
489 | (let ((date (current-time-string))) |
490 | (format "%02d %s %s" | |
491 | (string-to-int (substring date 8 10)) | |
492 | (substring date 4 7) | |
493 | (substring date -2)))) | |
494 | ||
495 | ;;; RCS 3 date | |
496 | ||
497 | (defun time-stamp-yy/mm/dd () | |
e1f40b28 | 498 | "Return the current date as a string in \"YY/MM/DD\" form." |
9565745a RS |
499 | (let ((date (current-time-string))) |
500 | (format "%s/%02d/%02d" | |
501 | (substring date -2) | |
502 | (cdr (assoc (substring date 4 7) time-stamp-month-numbers)) | |
503 | (string-to-int (substring date 8 10))))) | |
504 | ||
505 | ;;; RCS 5 date | |
506 | ||
507 | (defun time-stamp-yyyy/mm/dd () | |
e1f40b28 | 508 | "Return the current date as a string in \"YYYY/MM/DD\" form." |
9565745a RS |
509 | (let ((date (current-time-string))) |
510 | (format "%s/%02d/%02d" | |
511 | (substring date -4) | |
512 | (cdr (assoc (substring date 4 7) time-stamp-month-numbers)) | |
513 | (string-to-int (substring date 8 10))))) | |
514 | ||
e1f40b28 | 515 | ;;; ISO 8601 date |
9565745a | 516 | |
e1f40b28 RS |
517 | (defun time-stamp-yyyy-mm-dd () |
518 | "Return the current date as a string in \"YYYY-MM-DD\" form." | |
9565745a | 519 | (let ((date (current-time-string))) |
e1f40b28 RS |
520 | (format "%s-%02d-%02d" |
521 | (substring date -4) | |
9565745a | 522 | (cdr (assoc (substring date 4 7) time-stamp-month-numbers)) |
e1f40b28 | 523 | (string-to-int (substring date 8 10))))) |
9565745a | 524 | |
e1f40b28 RS |
525 | (defun time-stamp-yymmdd () |
526 | "Return the current date as a string in \"YYMMDD\" form." | |
9565745a | 527 | (let ((date (current-time-string))) |
e1f40b28 RS |
528 | (format "%s%02d%02d" |
529 | (substring date -2) | |
9565745a | 530 | (cdr (assoc (substring date 4 7) time-stamp-month-numbers)) |
e1f40b28 | 531 | (string-to-int (substring date 8 10))))) |
9565745a RS |
532 | |
533 | (defun time-stamp-hh:mm:ss () | |
e1f40b28 | 534 | "Return the current time as a string in \"HH:MM:SS\" form." |
9565745a RS |
535 | (substring (current-time-string) 11 19)) |
536 | ||
9565745a | 537 | (defun time-stamp-hhmm () |
e1f40b28 | 538 | "Return the current time as a string in \"HHMM\" form." |
9565745a RS |
539 | (let ((date (current-time-string))) |
540 | (concat (substring date 11 13) | |
541 | (substring date 14 16)))) | |
542 | ||
543 | (provide 'time-stamp) | |
544 | ||
545 | ;;; time-stamp.el ends here |