Hello! I am trying to figure out an easy way to see if user-submitted XHTML is syntactically-valid. This is proving to be a bit of a challenge. Currently, I am trying something like this: 
use XML::LibXML;
my $xml_string = "<test>Teststring</test>";
my $parser = XML::LibXML->new;
$parser->validation(1);
$parser->parse_string($xml_string);

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This fails with "validity error : Validation failed: no DTD found !". Fair enough, there's no DTD. But I just want to check to see that tags are balanced and properly-constructed for some arbitrary segment of code. I tried using the SkipDTD flag, but it had no effect. Is there an easy way to validate small snippets of code in this way?

In reply to Validating XHTML by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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