#!/usr/bin/perl -w
use strict;
use XML::DT;
#use simple_benchmark; # to get memory size

use Getopt::Long;

my( $in_file, $print);
GetOptions( 'print!' => \$print, 'in_file=s' =>\$in_file); 
$in_file ||= 'test.xml';
$print= 1 unless( defined $print);

my $result = dt($in_file);
print $result if $print;