# Copyright (c) 2006 bivio Software, Inc.  All Rights Reserved.
#
# Visit http://www.bivio.biz for more info.
# 
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
# 
# This library is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library;  If not, you may get a copy from:
# http://www.opensource.org/licenses/lgpl-license.html
# 
# $Id: TupleSlotNum.pm,v 2.4 2009/05/07 02:43:50 nagler Exp $
package Bivio::Type::TupleSlotNum;
use strict;
use Bivio::Base 'Type.Integer';

our($VERSION) = sprintf('%d.%02d', q$Revision: 2.4 $ =~ /\d+/g);

sub get_max {
    return 20;
}

sub get_min {
    return 1;
}

sub map_list {
    my($proto, $op) = @_;
    return [map(
	$op->($proto->field_name($_), $_),
	$proto->get_min .. $proto->get_max,
    )];
}

sub field_name {
    my(undef, $num) = @_;
    return "slot$num";
}

sub field_name_to_num {
    my(undef, $field) = @_;
    my($i) = $field =~ /\.slot(\d+)$/;
    die($field, ': not a slot')
	unless defined($i);
    return $i;
}

sub is_field_name {
    my(undef, $name) = @_;
    return $name =~ /(?:^|\.)slot\d+$/ ? 1 : 0;
}

1;