The way this is often done is to write a DTD for DTDs, write DTDs in XML
instance syntax and translate that syntax into XML DTD syntax for
machine processing. The strength of XML instance syntax is that it is
infinitely extensible (like any other XML DTD).
BTW, The weakness of ALWAYS using the XML instance syntax is that it is
infinitely extensible...like HTML.
Paul Prescod
-- http://itrc.uwaterloo.ca/~paprescoArt is always at peril in universities, where there are so many people, young and old, who love art less than argument, and dote upon a text that provides the nutritious pemmican on which scholars love to chew. -- Robertson Davies in "The Cunning Man"
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