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if ($data=~/(\D{3}) *?(\d{1,2}) *?(\d{4})/) { $month = $datehash{$1}; ... $year=$3; $sortingdate=join '', $year, $month, $day; }
my %datehash; @datehash{ qw( Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec) } = ... __DATA__ Oct 16 2004 11:09:19:943AM Mar 3 2007 10:30:31:170PM