I am a novice to perl and trying to implement this approach in my code. I am using ActivePerl on Windows. 2 questions: 1. I am getting an error stating that "parsefile" is undefined. I have defined the following modules in my code:

use strict;
use XML::Twig;
use File::Basename;
use XML::DOM;
[download]

since I use parsefile through Twig for my previous code, would this be the cause of my error? I think it's interfering with calling parsefile through DOM. 2. Would this approach also work if I want to validate attributes instead of tags in an XML file? Thanks