#!/usr/bin/perl

# csvtranspose -- author: Oliver Bossert
# Copyright (C) 2004 Oliver Bossert
#
# 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 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

#
# Transposes a csv-file (exchange of cols and rows)
#

use strict;
use warnings;

my @data =();
while (<>) {
  chomp;
  push @data, [split /\t/, $_ ];
}

my @tmp = ();
foreach my $y ( 0..$#data ) {
  foreach my $x ( 0..$#{$data[$y]} ) {
    $tmp[$x][$y] = $data[$y][$x];
  }
}

foreach my $x ( 0..$#tmp ) {
  print join("\t", @{$tmp[$x]}) . "\n";
}