3 # Copyright (C) 2007-2009 Martin A. Hansen.
5 # This program is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU General Public License
7 # as published by the Free Software Foundation; either version 2
8 # of the License, or (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 # http://www.gnu.org/copyleft/gpl.html
22 # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> DESCRIPTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
24 # Select unique or non-unique records from the stream based on the value of a given key.
26 # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
31 use Maasha::Biopieces;
34 # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
37 my ( $options, $in, $out, %hash, $record );
39 $options = Maasha::Biopieces::parse_options(
41 { long => 'key', short => 'k', type => 'string', mandatory => 'yes', default => undef, allowed => undef, disallowed => undef },
42 { long => 'invert', short => 'i', type => 'flag', mandatory => 'no', default => undef, allowed => undef, disallowed => undef },
46 $in = Maasha::Biopieces::read_stream( $options->{ "stream_in" } );
47 $out = Maasha::Biopieces::write_stream( $options->{ "stream_out" } );
49 while ( $record = Maasha::Biopieces::get_record( $in ) )
51 if ( $record->{ $options->{ "key" } } )
53 if ( not $hash{ $record->{ $options->{ "key" } } } and not $options->{ "invert" } )
55 Maasha::Biopieces::put_record( $record, $out );
57 $hash{ $record->{ $options->{ "key" } } } = 1;
59 elsif ( $hash{ $record->{ $options->{ "key" } } } and $options->{ "invert" } )
61 Maasha::Biopieces::put_record( $record, $out );
65 $hash{ $record->{ $options->{ "key" } } } = 1;
70 Maasha::Biopieces::put_record( $record, $out );
74 Maasha::Biopieces::close_stream( $in );
75 Maasha::Biopieces::close_stream( $out );
78 # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
83 Maasha::Biopieces::status_set();
89 Maasha::Biopieces::status_log();
93 # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<