head	1.2;
access;
symbols
	pkgsrc-2014Q3:1.1.0.44
	pkgsrc-2014Q3-base:1.1
	pkgsrc-2014Q2:1.1.0.42
	pkgsrc-2014Q2-base:1.1
	pkgsrc-2014Q1:1.1.0.40
	pkgsrc-2014Q1-base:1.1
	pkgsrc-2013Q4:1.1.0.38
	pkgsrc-2013Q4-base:1.1
	pkgsrc-2013Q3:1.1.0.36
	pkgsrc-2013Q3-base:1.1
	pkgsrc-2013Q2:1.1.0.34
	pkgsrc-2013Q2-base:1.1
	pkgsrc-2013Q1:1.1.0.32
	pkgsrc-2013Q1-base:1.1
	pkgsrc-2012Q4:1.1.0.30
	pkgsrc-2012Q4-base:1.1
	pkgsrc-2012Q3:1.1.0.28
	pkgsrc-2012Q3-base:1.1
	pkgsrc-2012Q2:1.1.0.26
	pkgsrc-2012Q2-base:1.1
	pkgsrc-2012Q1:1.1.0.24
	pkgsrc-2012Q1-base:1.1
	pkgsrc-2011Q4:1.1.0.22
	pkgsrc-2011Q4-base:1.1
	pkgsrc-2011Q3:1.1.0.20
	pkgsrc-2011Q3-base:1.1
	pkgsrc-2011Q2:1.1.0.18
	pkgsrc-2011Q2-base:1.1
	pkgsrc-2011Q1:1.1.0.16
	pkgsrc-2011Q1-base:1.1
	pkgsrc-2010Q4:1.1.0.14
	pkgsrc-2010Q4-base:1.1
	pkgsrc-2010Q3:1.1.0.12
	pkgsrc-2010Q3-base:1.1
	pkgsrc-2010Q2:1.1.0.10
	pkgsrc-2010Q2-base:1.1
	pkgsrc-2010Q1:1.1.0.8
	pkgsrc-2010Q1-base:1.1
	pkgsrc-2009Q4:1.1.0.6
	pkgsrc-2009Q4-base:1.1
	pkgsrc-2009Q3:1.1.0.4
	pkgsrc-2009Q3-base:1.1
	pkgsrc-2009Q2:1.1.0.2
	pkgsrc-2009Q2-base:1.1;
locks; strict;
comment	@# @;


1.2
date	2014.11.20.16.11.50;	author wiz;	state dead;
branches;
next	1.1;
commitid	31rlNUGdef7MpWYx;

1.1
date	2009.04.16.09.54.45;	author he;	state Exp;
branches;
next	;


desc
@@


1.2
log
@Remove patch-ad, gone from distinfo.
@
text
@$NetBSD: patch-ad,v 1.1 2009/04/16 09:54:45 he Exp $

Fix this so that it uses week numbering according to ISO 8601.

--- weekno.perl.orig	1995-10-17 14:44:49.000000000 +0100
+++ weekno.perl
@@@@ -51,7 +51,21 @@@@ sub weekno {
 
 
 sub firstdayfirstweek {
-# Return first day of week 1 of any year
+# Return the day of the year (0 is Jan 1st)
+# for the first day of week 1 of any year.
+#
+# Quoting strftime(3):
+#  %V    is replaced by the week number of the year (Monday as the first day
+#        of the week) as a decimal number [01,53]. According to ISO 8601 the
+#        week containing January 1 is week 1 if it has four or more days in
+#        the new year, otherwise it is week 53 of the previous year, and the
+#        next week is week 1.  The year is given by the `%G' conversion
+#        specification.
+#
+# So this will return a negative value in some cases, i.e. when
+# Jan 1st falls on either of Tuesday, Wednesday or Thursday, and
+# will be positive (1) or zero for Sunday or Monday respectively.
+#
    local($y) = @@_;
    local($ret);
    # Get time of January 1, 0.0.0.0
@@@@ -59,13 +73,14 @@@@ sub firstdayfirstweek {
    local($firsttime) = &main'timelocal(0, 0, 0, 1, 0, $y, 0, 0, 0);
    local(@@firstday) = localtime($firsttime);
    local($wday) = $firstday[6];
-   # Rule works for some years.....89 to 92 tested, they all hit branch 2...
-   if ($wday > 3) {
-      $ret = 8 - $wday;
+   # Weekday 4 is Thursday (localtime returns zero-based with Sunday = 0)
+   if ($wday <= 4) {
+       $ret = 1 - $wday;	# first day of week 1 may be in late December
+       				# The exception is when Jan 1 = Sunday (wday 0)
    } else {
-      $ret = 1 - $wday;
+       $ret = 8 - $wday;	# first day of week 1 is in January
    }
-   $ret;
+   return $ret;
 }
  
 sub firstinweek {
@


1.1
log
@Update from version 1.98nb3 to 1.98nb4.

Pkgsrc changes:
 o Add a fix to ensure this operates with week numbers in
   accordance with ISO 8601.
@
text
@d1 1
a1 1
$NetBSD$
@