-;;; Timezone package for GNU Emacs
+;;; timezone.el --- time zone package for GNU Emacs
-;; Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+;; Copyright (C) 1990, 1991, 1992, 1993, 1996 Free Software Foundation, Inc.
-;;; Author: Masanobu Umeda
-;;; Maintainer: umerin@mse.kyutech.ac.jp
-;;; Keywords: news
+;; Author: Masanobu Umeda
+;; Maintainer: umerin@mse.kyutech.ac.jp
+;; Keywords: news
;; This file is part of GNU Emacs.
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Code:
(4) 6 May 1992 1641-JST (Wednesday)
(5) 22-AUG-1993 10:59:12.82
(6) Thu, 11 Apr 16:17:12 91 [MET]
- (7) Mon, 6 Jul 16:47:20 T 1992 [MET]"
+ (7) Mon, 6 Jul 16:47:20 T 1992 [MET]
+ (8) 1996-06-24 21:13:12 [GMT]
+ (9) 1996-06-24 21:13-ZONE"
+ ;; Get rid of any text properties.
+ (and (stringp date)
+ (or (text-properties-at 0 date)
+ (next-property-change 0 date))
+ (setq date (copy-sequence date))
+ (set-text-properties 0 (length date) nil date))
(let ((date (or date ""))
(year nil)
(month nil)
(time nil)
(zone nil)) ;This may be nil.
(cond ((string-match
+ "\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]*\\([-+a-zA-Z0-9]+\\)" date)
+ ;; Styles: (1) and (2) with timezone and buggy timezone
+ ;; This is most common in mail and news,
+ ;; so it is worth trying first.
+ (setq year 3 month 2 day 1 time 4 zone 5))
+ ((string-match
+ "\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]*\\'" date)
+ ;; Styles: (1) and (2) without timezone
+ (setq year 3 month 2 day 1 time 4 zone nil))
+ ((string-match
"\\([^ \t,]+\\),[ \t]+\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]+\\(T[ \t]+\\|\\)\\([0-9]+\\)[ \t]*\\'" date)
;; Styles: (6) and (7) without timezone
(setq year 6 month 3 day 2 time 4 zone nil))
"\\([^ \t,]+\\),[ \t]+\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]+\\(T[ \t]+\\|\\)\\([0-9]+\\)[ \t]*\\([-+a-zA-Z0-9]+\\)" date)
;; Styles: (6) and (7) with timezone and buggy timezone
(setq year 6 month 3 day 2 time 4 zone 7))
- ((string-match
- "\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]*\\'" date)
- ;; Styles: (1) and (2) without timezone
- (setq year 3 month 2 day 1 time 4 zone nil))
- ((string-match
- "\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]*\\([-+a-zA-Z0-9]+\\)" date)
- ;; Styles: (1) and (2) with timezone and buggy timezone
- (setq year 3 month 2 day 1 time 4 zone 5))
((string-match
"\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]+\\([0-9]+\\)" date)
;; Styles: (3) without timezone
"\\([0-9]+\\)-\\([A-Za-z]+\\)-\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9]+:[0-9]+\\)\\.[0-9]+" date)
;; Styles: (5) without timezone.
(setq year 3 month 2 day 1 time 4 zone nil))
+ ((string-match
+ "\\([0-9]+\\)-\\([0-9]+\\)-\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9]+:[0-9]+\\)[ \t]*\\([-+a-zA-Z0-9]+\\)" date)
+ ;; Styles: (8) with timezone.
+ (setq year 1 month 2 day 3 time 4 zone 5))
+ ((string-match
+ "\\([0-9]+\\)-\\([0-9]+\\)-\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9]+\\)[ \t]*\\([-+a-zA-Z0-9:]+\\)" date)
+ ;; Styles: (8) with timezone with a colon in it.
+ (setq year 1 month 2 day 3 time 4 zone 5))
+ ((string-match
+ "\\([0-9]+\\)-\\([0-9]+\\)-\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9]+:[0-9]+\\)" date)
+ ;; Styles: (8) without timezone.
+ (setq year 1 month 2 day 3 time 4 zone nil))
)
(if year
(progn
(setq year
(substring date (match-beginning year) (match-end year)))
;; It is now Dec 1992. 8 years before the end of the World.
- (if (< (length year) 4)
- (setq year (concat "19" (substring year -2 nil))))
- (setq month
- (int-to-string
- (cdr
- (assoc
- (upcase
- ;; Don't use `match-end' in order to take 3
- ;; letters from the beginning.
+ (if (= (length year) 1)
+ (setq year (concat "190" (substring year -1 nil)))
+ (if (< (length year) 4)
+ (setq year (concat "19" (substring year -2 nil)))))
+ (setq month
+ (if (= (aref date (+ (match-beginning month) 2)) ?-)
+ ;; Handle numeric months, spanning exactly two digits.
(substring date
(match-beginning month)
- (+ (match-beginning month) 3)))
- timezone-months-assoc))))
+ (+ (match-beginning month) 2))
+ (let* ((string (substring date
+ (match-beginning month)
+ (+ (match-beginning month) 3)))
+ (monthnum
+ (cdr (assoc (upcase string) timezone-months-assoc))))
+ (if monthnum
+ (int-to-string monthnum)
+ nil))))
(setq day
(substring date (match-beginning day) (match-end day)))
(setq time
(setq zone
(substring date (match-beginning zone) (match-end zone))))
;; Return a vector.
- (if year
+ (if (and year month)
(vector year month day time zone)
(vector "0" "0" "0" "0" nil))
))
or nil if the date cannot be thus represented.
DATE is the number of days elapsed since the (imaginary)
Gregorian date Sunday, December 31, 1 BC."
- (let* ((current-time-origin 719162)
+ (let* ((current-time-origin 719163)
;; (timezone-absolute-from-gregorian 1 1 1970)
(days (- date current-time-origin))
(seconds-per-day (float 86400))
If TIMEZONE is nil, use the local time zone."
(let* ((date (timezone-parse-date date))
(year (string-to-int (aref date 0)))
- (year (if (< year 100) (+ year 1900) year))
+ (year (cond ((< year 50)
+ (+ year 2000))
+ ((< year 100)
+ (+ year 1900))
+ (t year)))
(month (string-to-int (aref date 1)))
(day (string-to-int (aref date 2)))
(time (timezone-parse-time (aref date 3)))