#!/usr/bin/env perl

# Copyright (C) 2007-2009 Martin A. Hansen.

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program 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 General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

# http://www.gnu.org/copyleft/gpl.html


# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> DESCRIPTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

# Split the values of a key into new key/value pairs.

# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


use warnings;
use strict;
use Maasha::Biopieces;


# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


my ( $options, $in, $out, $record, @vals, $i );

$options = Maasha::Biopieces::parse_options(
    [
        { long => 'key',     short => 'k', type => 'string', mandatory => 'yes', default => undef, allowed => undef, disallowed => undef },
        { long => 'keys',    short => 'K', type => 'list',   mandatory => 'no',  default => undef, allowed => undef, disallowed => undef },
        { long => 'delimit', short => 'd', type => 'string', mandatory => 'no',  default => '_',   allowed => undef, disallowed => undef },
    ]   
);

$in  = Maasha::Biopieces::read_stream( $options->{ "stream_in" } );
$out = Maasha::Biopieces::write_stream( $options->{ "stream_out" } );

while ( $record = Maasha::Biopieces::get_record( $in ) )
{
    if ( exists $options->{ 'key' } and exists $record->{ $options->{ 'key' } } )
    {
        @vals = split /$options->{ 'delimit' }/, $record->{ $options->{ 'key' } };

        if ( scalar @vals > 1 )
        {
            for ( $i = 0; $i < @vals; $i++ )
            {
                if ( defined $options->{ "keys" } and defined $options->{ "keys" }->[ $i ] ) {
                    $record->{ $options->{ "keys" }->[ $i ] } = $vals[ $i ];
                } else {
                    $record->{ $options->{ 'key' } . "_$i" } = $vals[ $i ];
                }
            }
        }
    }

    Maasha::Biopieces::put_record( $record, $out );
}

Maasha::Biopieces::close_stream( $in );
Maasha::Biopieces::close_stream( $out );


# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


BEGIN
{
    Maasha::Biopieces::status_set();
}


END
{
    Maasha::Biopieces::status_log();
}


# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<


__END__