return undef if !defined $string;
+ return DateTime->today_local if lc($string) eq 'today';
+ return DateTime->today_local->subtract(days => 1) if lc($string) eq 'yesterday';
+
$params{dateformat} ||= $::myconfig{dateformat} || 'yy-mm-dd';
$params{numberformat} ||= $::myconfig{numberformat} || '1,000.00';
my $num_separator = $params{numberformat} =~ m{,\d+$} ? ',' : '.';