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Bob Foster scripsit: > XML does not require parsers to support entities apart from validation ObMemeStomping: This is not true. XML processors, validating or not, must support internal entities that are defined in the internal subset. Something I've long wanted to see is a tool that takes a full DTD and squashes it down to the bare minimum required for use as an internal subset to preserve all DTD infoset effects but *not* validity. In particular: 1) Expand all parameter entities and eliminate all parameter entity declarations 2) Eliminate all attribute declarations that are CDATA and either #IMPLIED or #REQUIRED 3) Eliminate all element declarations that are ANY, EMPTY, or mixed content, and simplify all element-content ones to <!ELEMENT foo (foo)> or something of the sort A reasonable implementation strategy would be to start with James Clark's DTDinst program (http://www.thaiopensource.com/relaxng/dtdinst) and then use XSLT (with text output mode) to generate the new DTD. Anyone interested in tackling it? -- In politics, obedience and support John Cowan <jcowan@r...> are the same thing. --Hannah Arendt http://www.ccil.org/~cowan
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