Yet another niggling XML syntax question

John Cowan cowan at
Tue Mar 2 14:39:40 GMT 1999

David Brownell wrote:

> Right -- this would violate _validity_ constraints (but a nonvalidating
> parser should accept it just fine):
>         <!DOCTYPE Bubba [
>           <!ENTITY % Part1 "<!ELEMENT ">
>           <!ENTITY % Part2 " Bubba ANY>">
>           <!-- next is a validity error in both internal
>                  and external subsets -->
>           %Part1;%Part2;
>         ]>
>         <Bubba></Bubba>

It's not 100% clear to me whether the reference to Part2 violates
the WFC "PEs in Internal Subset", which states (inter alia) that
"parameter-entity references can occur only where markup
declarations can occur".  After "%Part1;" which resolves to
" <!ELEMENT  ", a markup declaration is in fact illegal (since
we are already inside one).

John Cowan		cowan at
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)

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