#!/usr/bin/env perl
use strict;
use warnings;

use XML::Twig;
use Data::Dumper;

sub print_book {
    my ( $twig, $book ) = @_; 
    my %this_book = map { $_ -> tag, $_ -> text } $book -> children;
    print Dumper \%this_book;
    
    $twig -> purge; 
}

my $twig = XML::Twig -> new ( 'twig_handlers' =>
                                 { 'Book' => \&print_book } );
   $twig ->  parsefile ( 'your_xml_file' ); 


##</code><code>##

$VAR1 = {
          'Title' => 'The age of rocks',
          'Author' => 'Mary',
          'Released' => '8/16/1944'
        };

##</code><code>##

sub handle_node { 
    my ( $twig, $element ) = @_;
    unless ( $element -> has_children ) { 
        print "(", $element -> parent -> tag, ") ", 
                   $element -> tag, ": ", $element -> text,"\n";
    }
    $twig -> purge; 
}

my $twig = XML::Twig -> new ( 'twig_handlers' => 
                                { '_all_' => \&handle_node } );
   $twig  ->  parsefile ( 'yourfile'); 

##</code><code>##

(Book) Title: The book of books
(Book) Author: Sally
(Book) Released: 1/2/2008
(Book) Title: The page of pages
(Book) Author: Amanda
(Book) Released: 6/3/1998
(Book) Title: The book of pages
(Book) Author: John
(Book) Released: 6/22/1963
(Book) Title: The rock of ages
(Book) Author: Frank
(Book) Released: 5/21/2004
(Book) Title: The age of rocks
(Book) Author: Mary
(Book) Released: 8/16/1944