Validation Conditions (was Streaming XML (was ...))

David Megginson david at
Mon Feb 22 20:18:45 GMT 1999

Michael.Kay at writes:

 > > > My first cut at it says that all VCs except the following can be
 > > > checked given the full left context (in stream terms, all that
 > > > has come before):
 > Which reminds me that SAX still needs some kind of statement about when
 > errors are detected and reported. If we ask a ModSAX parser to do
 > validation, do we get a guarantee that a duplicate ID attribute will be
 > reported when the first duplicate value is encountered, or is the parser
 > allowed to wait until end of document?

I don't think that I'd want to constrain implementations that tightly
-- what does everyone else think?

All the best,


David Megginson                 david at

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