Importing Oort Gnus v0.04.

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

diff --git a/lisp/time-date.el b/lisp/time-date.el
index 06f5ad1..3ec6d96 100644 (file)
--- a/lisp/time-date.el
+++ b/lisp/time-date.el
@@ -1,5 +1,5 @@
 ;;; time-date.el --- Date and time handling functions
-;; Copyright (C) 1998,99 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;;     Masanobu Umeda <umerin@mse.kyutech.ac.jp>
@@ -28,11 +28,21 @@
 
 (require 'parse-time)
 
+(autoload 'timezone-make-date-arpa-standard "timezone")
+
 ;;;###autoload
 (defun date-to-time (date)
   "Convert DATE into time."
   (condition-case ()
-      (apply 'encode-time (parse-time-string date))
+      (apply 'encode-time
+            (parse-time-string
+             ;; `parse-time-string' isn't sufficiently general or
+             ;; robust.  It fails to grok some of the formats that
+             ;; timzeone does (e.g. dodgy post-2000 stuff from some
+             ;; Elms) and either fails or returns bogus values.  Lars
+             ;; reverted this change, but that loses non-trivially
+             ;; often for me.  -- fx
+             (timezone-make-date-arpa-standard date)))
     (error (error "Invalid date: %s" date))))
 
 (defun time-to-seconds (time)
@@ -119,6 +129,11 @@ The Gregorian date Sunday, December 31, 1bce is imaginary."
        (- (/ (1- year) 100))           ;       - century years
        (/ (1- year) 400))))            ;       + Gregorian leap years
 
+(defun time-to-number-of-days (time)
+  "Return the number of days represented by TIME.
+The number of days will be returned as a floating point number."
+  (/ (+ (* 1.0 65536 (car time)) (cadr time)) (* 60 60 24)))
+
 ;;;###autoload
 (defun safe-date-to-time (date)
   "Parse DATE and return a time structure.