X-Git-Url: http://www.dxcluster.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FJulian.pm;h=78dd8d29d0ed29179c49fdff8e39dc88436bcb6a;hb=b9dffeff7239952814342dad19db3a51def6fab7;hp=2307e08a9d651a6b6a238b90d8af0f8945aabc1e;hpb=f0910da57e166acb22e83de4e4b771d175074c80;p=spider.git diff --git a/perl/Julian.pm b/perl/Julian.pm index 2307e08a..78dd8d29 100644 --- a/perl/Julian.pm +++ b/perl/Julian.pm @@ -10,6 +10,12 @@ use strict; package Julian; + +use vars qw(@days @ldays @month); +@days = (31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); +@ldays = (31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); +@month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec); + sub alloc($$$) { my ($pkg, $year, $thing) = @_; @@ -44,8 +50,6 @@ package Julian::Day; use vars qw(@ISA); @ISA = qw(Julian); -my @days = (31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); - # is it a leap year? sub _isleap { @@ -70,9 +74,9 @@ sub sub($$) my $diny = _isleap($self->[0]) ? 366 : 365; $self->[1] -= $amount; while ($self->[1] <= 0) { - $self->[1] += $diny; $self->[0] -= 1; $diny = _isleap($self->[0]) ? 366 : 365; + $self->[1] += $diny; } return $self; } @@ -91,6 +95,22 @@ sub add($$) return $self; } +sub as_string +{ + my $self = shift; + my $days = $self->[1]; + my $mon = 0; + for (_isleap($self->[0]) ? @Julian::ldays : @Julian::days) { + if ($_ < $days) { + $days -= $_; + $mon++; + } else { + last; + } + } + return "$days-$Julian::month[$mon]-$self->[0]"; +} + package Julian::Month; use vars qw(@ISA); @@ -132,5 +152,11 @@ sub add($$) return $self; } +sub as_string +{ + my $self = shift; + return "$Julian::month[$self->[1]]-$self->[0]"; +} + 1;