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package Catmandu::Exporter::Count;
use Catmandu::Sane;
our $VERSION = '1.2012';
use Moo;
use namespace::clean;
with 'Catmandu::Exporter';
has _num => (is => 'rw', default => sub {0});
sub add {
my $self = $_[0];
$self->_num($self->_num + 1);
}
sub commit {
my $self = $_[0];
$self->fh->print($self->_num . "\n");
}
1;
__END__
=pod
=head1 NAME
Catmandu::Exporter::Count - a exporter that counts things
=head1 SYNOPSIS
# From the commandline
$ catmandu convert JSON to Count < /tmp/data.json
=head1 DESCRIPTION
This exporter exports nothing and just counts the number of items found
in the input data.
=head1 SEE ALSO
L<Catmandu::Cmd::count>
L<Catmandu::Exporter::Null>
=cut
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