Validating XML against DTD with Perl???

I have a program that generates XML files and I want
to do some automated testing.

Ideally, I'd like to use perl to validate the XML files created
against a DTD.

Is there any perl module that can do this easily??

note:

I am aware of XML::Parser module from CPAN, however
this can not validate XML against a DTD (its built
on top of a non-validating parser (expat).
mweilerAsked:
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s_franklinCommented:
There are a few options that I can think of:

HTML::Validator is beta but does dtd-based validation. Furthermore, it lets you override the DTD definition to use your own file if you wish.

http://www.hut.fi/~samzait/HTML-Validator/

You could write a C++ app using one of the many toolkits that you called from your Perl code. I haven't checked IBM's xml4c recently (www.alphaworks.ibm.com) but it did support DTD-validation although it didn't give you much control over this functionality - pass or fail.

There are command-line SGML parsers that you could call. One you might want to look at is: http://www.jclark.com/sp/

Also, I did a quick check at CPAN and saw XML::ESISParser which indicates that it does DTD-based validation. It looks like it just uses the command-line XML validator mentioned above, providing some convenient interfaces for you as a perl programmer.

You may also want to peek at libxml-enno for XML:Checker and XML:DOM:ValParser. I think these are alpha.

Steve

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