Ask the Expert

Is there a DTD for HTML?

Is there a DTD for HTML? If so, can an XML parser parse HTML documents with it? I'm looking for a simple way to parse HTML documents the same as I can parse XML documents with JAXP.

    Requires Free Membership to View

HTML is an SGML application and although it has a DTD (, SGML DTDs are different from XML DTDs.

An SGML system can work with all XML DTDs (in theory at least) but XML systems cannot work with all SGML DTDs.

The big problem is that HTML parsers need to infer the structure of the document when tags (such as </p>) are missing. This is hard and not all tools give you the same result.

There are two tools worth looking at for getting your HTML into shape to be parseable as XML: Dave Ragget's HTML Tidy and James Clark's SGML to XML conversion.

This was first published in April 2002

There are Comments. Add yours.

TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: