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From: "Elliotte Rusty Harold" <firstname.lastname@example.org>
> In practice, I think that's true, but I don't think there's anything
> in the SAX spec that requires it. I don't see why you couldn't set
> http://xml.org/sax/features/validation (Or
> http://xml.org/sax/features/external-general-entities and
> http://xml.org/sax/features/external-parameter-entities) some time
> after the XML declaration has been read but before the root element
> or perhaps the DOCTYPE declaration has been read, perhaps in
> startDocument() or setDocumentLocator().
I agree that it would be better if SAX allowed features to be set after reading
the XML header, especially if any extra pseudo-attributes are put in
(no flames please).
But the http://xml.org/sax/features/validation cannot be changed during parsing.
See the last paragraph of SAX2 Standard Feature Flags at
"Unless otherwise specified here, implementations may support changing current values of
these standard feature flags, but not while parsing. "
which is also commented on in Brownell's O'Reilly book SAX2 at page 87
Of course, there is an "is-standalone" flag, which may allow some kinds of hacking
around the problem. Am I completely off-track here: is there some workaround
I am missing?