XHTML Basic 1.1 reference; DTD-based documentation generator

Hi,

I've been working on a simple reference doc for XHTML Basic 1.1, which
documents which elements and attributes are allowed according to the
DTD, and how they relate one to another:
http://www.w3.org/2007/07/xhtml-basic-ref.html

The tables in that document were generated directly from the DTD, using
a just-released python script I wrote for that occasion:
http://people.w3.org/~dom/archives/2007/07/generating-html-documentation-from-dtd/

Hopefully this can be useful both as a reference for developers, and to
also spot bugs in the DTDs for spec reviewers...

Dom