XML::DOM::Comment − An XML comment in XML::DOM
XML::DOM::Comment extends XML::DOM::CharacterData which extends XML::DOM::Node.
This node represents the content of a comment, i.e., all the characters between the starting ’<!−−’ and ending ’−−>’. Note that this is the definition of a comment in XML, and, in practice, HTML, although some HTML tools may implement the full SGML comment structure.