mosesdecoder/scripts/generic/reverse-alignment.perl

#!/usr/bin/env perl
#
# This file is part of moses.  Its use is licensed under the GNU Lesser General
# Public License version 2.1 or, at your option, any later version.

use warnings;
use strict;

my $line;
while ($line = <STDIN>)
{
  chomp($line);
  my @toks = split(/ /, $line);

  foreach (my $i = 0; $i < @toks; ++$i)
  {
    my $tok = $toks[$i];
    my @alignPair = split(/-/, $tok);
    (@alignPair == 2) or die("Something wrong");
    print $alignPair[1]."-".$alignPair[0]." ";
  }
  print "\n";
}