As I said, they would use an *existing* validator. 

my $dtd = XML::LibXML::Dtd->new(...);
$doc->validate($dtd);

[download]

Less code means less to maintain. It also means you can use a faster, tested solution (such as the C++ library libxml2 used by XML::LibXML).

In reply to Re^3: What does this comment mean (Are DTDs of any use to XML::Parser?) by ikegami
in thread What does this comment mean (Are DTDs of any use to XML::Parser?) by YenForYang

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