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package Class::Date::Rel;
our $AUTHORITY = 'cpan:YANICK';
$Class::Date::Rel::VERSION = '1.1.17';
use strict;
use warnings;
use vars qw(@NEW_FROM_SCALAR);
use Class::Date::Const;
use Scalar::Util qw(blessed);
use constant SEC_PER_MONTH => 2_629_744;
# see the ClassDateRel const in package Class::Date
use constant ClassDate => "Class::Date";
use overload
'0+' => "sec",
'""' => "sec",
'<=>' => "compare",
'cmp' => "compare",
'+' => "add",
'neg' => "neg",
fallback => 1;
sub new { my ($proto,$val)=@_;
my $class = ref($proto) || $proto;
return undef if !defined $val;
my $ref = ref $val or return $class->new_from_scalar($val);
return $class->new_copy($val)
if (blessed($val) && $val->isa( __PACKAGE__ ));
return $class->new_from_array($val) if $ref eq 'ARRAY';
return $class->new_from_hash($val) if $ref eq 'HASH';
# can only be a scalar ref by now
return $class->new_from_scalar($$val);
}
sub new_copy { my ($s,$val)=@_;
return bless([@$val], ref($s)||$s);
}
sub new_from_array { my ($s,$val) = @_;
my ($y,$m,$d,$hh,$mm,$ss) = @$val;
return bless([ ($y || 0) * 12 + $m , ($ss || 0) +
60*(($mm || 0) + 60*(($hh || 0) + 24* ($d || 0))) ], ref($s)||$s);
}
sub new_from_hash { my ($s,$val) = @_;
$s->new_from_array(Class::Date::_array_from_hash($val));
}
sub new_from_scalar { my ($s,$val)=@_;
for (my $i=0;$i<@NEW_FROM_SCALAR;$i++) {
my $ret=$NEW_FROM_SCALAR[$i]->($s,$val);
return $ret if defined $ret;
}
return undef;
}
sub new_from_scalar_internal { my ($s,$val)=@_;
return undef if !defined $val;
return bless([0,$1],ref($s) || $s)
if $val =~ / ^ \s* ( \-? \d+ ( \. \d* )? ) \s* $/x;
if ($val =~ m{ ^\s* ( \d{1,4} ) - ( \d\d? ) - ( \d\d? )
( \s+ ( \d\d? ) : ( \d\d? ) ( : ( \d\d? )? (\.\d+)? )? )? }x ) {
# ISO date
my ($y,$m,$d,$hh,$mm,$ss)=($1,$2,$3,$5,$6,$8);
return $s->new_from_array([$y,$m,$d,$hh,$mm,$ss]);
}
my ($y,$m,$d,$hh,$mm,$ss)=(0,0,0,0,0,0);
$val =~ s{ \G \s* ( \-? \d+) \s* (Y|M|D|h|m|s) }{
my ($num,$cmd)=($1,$2);
if ($cmd eq 'Y') {
$y=$num;
} elsif ($cmd eq 'M') {
$m=$num;
} elsif ($cmd eq 'D') {
$d=$num;
} elsif ($cmd eq 'h') {
$hh=$num;
} elsif ($cmd eq 'm') {
$mm=$num;
} elsif ($cmd eq 's') {
$ss=$num;
}
"";
}gexi;
return $s->new_from_array([$y,$m,$d,$hh,$mm,$ss]);
}
push @NEW_FROM_SCALAR,\&new_from_scalar_internal;
sub compare { my ($s,$val2,$reverse) = @_;
my $rev_multiply=$reverse ? -1 : 1;
if (blessed($val2) && $val2->isa( __PACKAGE__ )) {
return ($s->sec <=> $val2->sec) * $rev_multiply;
} else {
my $date_obj=$s->new($val2);
return ($s->sec <=> 0) * $rev_multiply if !defined $date_obj;
return ($s->sec <=> $date_obj->sec) * $rev_multiply;
}
}
sub add { my ($s,$val2)=@_;
if (my $reldate=$s->new($val2)) {
my $months=$s->[cs_mon] + $reldate->[cs_mon];
my $secs =$s->[cs_sec] + $reldate->[cs_sec];
return $s->new_from_hash({ month => $months, sec => $secs }) if $months;
return $secs;
} else {
return $s;
}
}
sub neg { my ($s)=@_;
return $s->new_from_hash({
month => -$s->[cs_mon],
sec => -$s->[cs_sec]
});
}
sub year { shift->sec / (SEC_PER_MONTH*12) }
sub mon { shift->sec / SEC_PER_MONTH }
*month = *mon;
sub day { shift->sec / (60*60*24) }
sub hour { shift->sec / (60*60) }
sub min { shift->sec / 60 }
*minute = *min;
sub sec { my ($s)=@_; $s->[cs_sec] + SEC_PER_MONTH * $s->[cs_mon]; }
*second = *sec;
sub sec_part { shift->[cs_sec] }
*second_part = *sec_part;
sub mon_part { shift->[cs_mon] }
*month_part = *mon_part;
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Class::Date::Rel
=head1 VERSION
version 1.1.17
=head1 AUTHORS
=over 4
=item *
dLux (Szabó, Balázs) <dlux@dlux.hu>
=item *
Gabor Szabo <szabgab@gmail.com>
=item *
Yanick Champoux <yanick@cpan.org>
=back
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2018, 2014, 2010, 2003 by Balázs Szabó.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|
