perl & XML: getting last child?

[ambrill]

Thanks for the help on the last child... Related question for situations where there is no value in the node but i need to return a "0" to maintain the appropriate output file structure. Modifying the original files slightly below:

 
xml

<library>
    <cd>
        <artist></artist>
    </cd>
    <book>
      <title>Perl Best Practices</title>
      <author>Damian Conway</author>
      <isbn>0596001738</isbn>
      <pages>542</pages>
      <image src="http://www.oreilly.com/catalog/covers/perlbp.s.gif"
             width="145" height="190" />
    </book>
    <book>
      <title>Perl Cookbook, Second Edition</title>
      <author>Tom Christiansen</author>
      <author>Nathan Torkington</author>
      <isbn>0596003137</isbn>
      <pages>964</pages>
      <image src="http://www.oreilly.com/catalog/covers/perlckbk2.s.gi
+f"
             width="145" height="190" />
    </book>
    <book>
      <title>Guitar</title>
      <author>Mark Phillips</author>
      <author>John Chappell</author>
      <isbn>076455106X</isbn>
      <pages>392</pages>
      <image src="http://media.wiley.com/product_data/coverImage/6X/07
+645510/076455106X.jpg"
             width="100" height="125" />
    </book>
  </library>

Incorporating some of the previous suggestions, new code looks like this. Problem arises when <artist> is null (or there is no entry).

 
#!/usr/bin/perl -w

  use strict;
  use warnings;

  my $filename = 'library1.xml';
  
  use XML::LibXML;

  my $parser = XML::LibXML->new();
  my $doc    = $parser->parse_file($filename);




    print $_->data . " | " foreach ($doc->findnodes('/library/cd/artis
+t/text()'));

    my @nodes = $doc->findnodes('/library/book[last()]'); 
    foreach my $node (@nodes) {
    print $node->findvalue( 'title')." | \n";
    
    
}