use strict;
use warnings;
# ABSTRACT: a tolerance "m to n"
package
Number::Tolerant::Type::to;
use parent qw(Number::Tolerant::Type);
sub construct { shift;
($_[0],$_[1]) = sort { $a <=> $b } ($_[0],$_[1]);
{
value => ($_[0]+$_[1])/2,
variance => $_[1] - ($_[0]+$_[1])/2,
min => $_[0],
max => $_[1]
}
}
sub parse {
my ($self, $string, $factory) = @_;
my $number = $self->number_re;
my $X = $self->variable_re;
return $factory->new("$1", 'to', "$2")
if ($string =~ m!\A($number)\s*<=$X<=\s*($number)\z!);
return $factory->new("$2", 'to', "$1")
if ($string =~ m!\A($number)\s*>=$X>=\s*($number)\z!);
return $factory->new("$1", 'to', "$2")
if ($string =~ m!\A($number)\s+to\s+($number)\z!);
return;
}
sub valid_args {
my $self = shift;
return unless 3 == grep { defined } @_;
return unless $_[1] eq 'to';
return unless defined (my $from = $self->normalize_number($_[0]));
return unless defined (my $to = $self->normalize_number($_[2]));
return ($from, $to);
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Number::Tolerant::Type::to - a tolerance "m to n"
=head1 VERSION
version 1.708
=head1 AUTHOR
Ricardo Signes <rjbs@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2004 by Ricardo Signes.
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