> what's wrong with the following?
> :
> print time2str("%Y-W%W", time);

Because when the date falls in the first week of the year or the last week of the year, that'll be wrong about half the time. For instance, 

use strict;
use warnings;

use Date::Manip qw<UnixDate>;
use Date::Parse qw<str2time>;
use Date::Format qw<time2str>;

print UnixDate("12/31/2007", "%L-W%W"), "\n";            # prints "200
+8-W01"
print time2str("%Y-W%W", str2time("12/31/2007")), "\n";  # prints "200
+7-W52" (!!)

[download]
Actually, I thought it would print "2007-W01" ... I guess D::F's %W is broken to go along with its lack of UnixDate-equivalent-%L. At least it works better than I thought, I suppose ... but of course, according to ISO 8601, 2007-W52 is still wrong.

In reply to Re^2: Date::Format handling of ISO week number format by Oberon
in thread Date::Format handling of ISO week number format by Oberon

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