Delete files not included in Semi-gnus 6.8.

[elisp/gnus.git-] / lisp / date.el

diff --git a/lisp/date.el b/lisp/date.el
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--- a/lisp/date.el
+++ /dev/null
@@ -1,124 +0,0 @@
-;;; date.el --- Date and time handling functions
-;; Copyright (C) 1998 Free Software Foundation, Inc.
-
-;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
-;;     Masanobu Umeda <umerin@mse.kyutech.ac.jp>
-;; 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 2, 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; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Commentary:
-
-;;; Code:
-
-(require 'timezone)
-
-(defun parse-time-string (date)
-  "Convert DATE into time."
-  (decode-time
-   (condition-case ()
-       (let* ((d1 (timezone-parse-date date))
-             (t1 (timezone-parse-time (aref d1 3))))
-        (apply 'encode-time
-               (mapcar (lambda (el)
-                         (and el (string-to-number el)))
-                       (list
-                        (aref t1 2) (aref t1 1) (aref t1 0)
-                        (aref d1 2) (aref d1 1) (aref d1 0)
-                        (number-to-string
-                         (* 60 (timezone-zone-to-minute (aref d1 4))))))))
-     ;; If we get an error, then we just return a 0 time.
-     (error (list 0 0)))))
-
-(defun date-to-time (date)
-  "Convert DATE into time."
-  (apply 'encode-time (parse-time-string date)))
-
-(defun time-less-p (t1 t2)
-  "Say whether time T1 is less than time T2."
-  (or (< (car t1) (car t2))
-      (and (= (car t1) (car t2))
-          (< (nth 1 t1) (nth 1 t2)))))
-
-(defun days-to-time (days)
-  "Convert DAYS into time."
-  (let* ((seconds (* 1.0 days 60 60 24))
-        (rest (expt 2 16))
-        (ms (condition-case nil (floor (/ seconds rest))
-              (range-error (expt 2 16)))))
-    (list ms (condition-case nil (round (- seconds (* ms rest)))
-              (range-error (expt 2 16))))))
-
-(defun time-since (time)
-  "Return the time since TIME, which is either an internal time or a date."
-  (when (stringp time)
-    ;; Convert date strings to internal time.
-    (setq time (date-to-time time)))
-  (let* ((current (current-time))
-        (rest (when (< (nth 1 current) (nth 1 time))
-                (expt 2 16))))
-    (list (- (+ (car current) (if rest -1 0)) (car time))
-         (- (+ (or rest 0) (nth 1 current)) (nth 1 time)))))
-
-(defun subtract-time (t1 t2)
-  "Subtract two internal times."
-  (let ((borrow (< (cadr t1) (cadr t2))))
-    (list (- (car t1) (car t2) (if borrow 1 0))
-         (- (+ (if borrow 65536 0) (cadr t1)) (cadr t2)))))
-
-(defun date-to-day (date)
-  "Return the number of days between year 1 and DATE."
-  (time-to-day (date-to-time date)))
-  
-(defun days-between (date1 date2)
-  "Return the number of days between DATE1 and DATE2."
-  (- (date-to-day date1) (date-to-day date2)))
-
-(defun date-leap-year-p (year)
-  "Return t if YEAR is a leap year."
-  (or (and (zerop (% year 4))
-          (not (zerop (% year 100))))
-      (zerop (% year 400))))
-
-(defun time-to-day-in-year (time)
-  "Return the day number within the year of the date month/day/year."
-  (let* ((tim (decode-time time))
-        (month (nth 4 tim))
-        (day (nth 3 tim))
-        (year (nth 5 tim))
-        (day-of-year (+ day (* 31 (1- month)))))
-    (when (> month 2)
-      (setq day-of-year (- day-of-year (/ (+ 23 (* 4 month)) 10)))
-      (when (date-leap-year-p year)
-       (setq day-of-year (1+ day-of-year))))
-    day-of-year))
-
-(defun time-to-day (time)
-  "The number of days between the Gregorian date 0001-12-31bce and TIME.
-The Gregorian date Sunday, December 31, 1bce is imaginary."
-  (let* ((tim (decode-time time))
-        (month (nth 4 tim))
-        (day (nth 3 tim))
-        (year (nth 5 tim)))
-    (+ (time-to-day-in-year time)      ;       Days this year
-       (* 365 (1- year))               ;       + Days in prior years
-       (/ (1- year) 4)                 ;       + Julian leap years
-       (- (/ (1- year) 100))           ;       - century years
-       (/ (1- year) 400))))            ;       + Gregorian leap years
-
-(provide 'date)
-
-;;; date.el ends here