--- /dev/null
+#!/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 BED entries into overlapping windows.
+
+# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+
+
+use warnings;
+use strict;
+use Maasha::Biopieces;
+
+
+# >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+
+
+my ( $options, $in, $out, $record, $new_record, $i );
+
+$options = Maasha::Biopieces::parse_options(
+ [
+ { long => 'window_size', short => 'w', type => 'uint', mandatory => 'no', default => 20, allowed => undef, disallowed => 0 },
+ { long => 'step_size', short => 's', type => 'uint', mandatory => 'no', default => 1, allowed => undef, disallowed => 0 },
+ ]
+);
+
+$in = Maasha::Biopieces::read_stream( $options->{ "stream_in" } );
+$out = Maasha::Biopieces::write_stream( $options->{ "stream_out" } );
+
+while ( $record = Maasha::Biopieces::get_record( $in ) )
+{
+ if ( $record->{ "CHR" } and $record->{ "CHR_BEG" } and $record->{ "CHR_END" } )
+ {
+ $record->{ "BED_LEN" } = $record->{ "CHR_END" } - $record->{ "CHR_BEG" } + 1;
+
+ for ( $i = 0; $i < $record->{ "BED_LEN" } - $options->{ "window_size" }; $i += $options->{ "step_size" } )
+ {
+ $new_record->{ "REC_TYPE" } = "BED";
+ $new_record->{ "CHR" } = $record->{ "CHR" };
+ $new_record->{ "CHR_BEG" } = $record->{ "CHR_BEG" } + $i;
+ $new_record->{ "CHR_END" } = $record->{ "CHR_BEG" } + $i + $options->{ "window_size" };
+ $new_record->{ "BED_LEN" } = $options->{ "window_size" };
+ $new_record->{ "Q_ID" } = $record->{ "Q_ID" } . "_$i";
+ $new_record->{ "SCORE" } = $record->{ "SCORE" };
+ $new_record->{ "STRAND" } = $record->{ "STRAND" };
+
+ Maasha::Biopieces::put_record( $new_record, $out );
+ }
+ }
+ else
+ {
+ 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__