Quotes in PEReferences

[John Cowan]

Richard Tobin quoted:
> 
> > <!DOCTYPE test [
> > <!ELEMENT test (#PCDATA)>
> > <!ENTITY % p0 "a quote (&#34;) test">
> > <!ENTITY % p1 "<!ENTITY e1 &#34;">
> > %p1;%p0;">
> > ]>
> > <test>This is&e1; .</test>
> >
> > From what I understand, this seems well formed!?

and replied:

> So suppose it was instead in the external subset.  It would still be wrong
> (invalid) because declarations must start and end in the same entity
> (validity constraint on production 29).

Yes, it's invalid.  But is it WF?  I say it is WF, despite the
regrettable nature of this particular WF entity.  Ditto with
(in the external subset):

<!ENTITY % StartEntity "<!ENTITY">
%StartEntity; Foo "Foo">

Ugh, yuck.  But WF.

-- 
John Cowan	http://www.ccil.org/~cowan		cowan at ccil.org
	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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