use XML::LibXML;
    use strict;
    use warnings;
    my $parser = new XML::LibXML;
    my $xmlp= $parser -> parse_file("ko00010.xml");
    my $rootel = $xmlp -> getDocumentElement();
    my $elname = $rootel -> getName();
    my @rootelements=$rootel -> getAttributes();
    foreach my $rootatt(@rootelements){
        my  $name = $rootatt -> getName();
        my $value = $rootatt -> getValue();
        print " ${name}[$value]\n ";
    }
    
    my @kids = $rootel -> childNodes();
    foreach my $child(@kids) {
        my $elname = $child -> getName();
        my @atts = $child -> getAttributes();
        foreach my $at (@atts) {
            my $name = $at -> getName();
            my $value = $at -> getValue();
            print " ${name}[$value]\n ";
    
        }
    }