DTD to BNF

Is the Perl DTD to BNF converter at [1] of any use, w.r.t. [2]?

[1] http://www.w3.org/XML/2000/04schema-hacking/dtd2bnf
[2] http://lists.w3.org/Archives/Public/w3c-wai-er-ig/2000Dec/0043.html

-- 
Kindest Regards,
Sean B. Palmer
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