SAX and URNs

David Megginson david at
Wed Oct 20 19:54:04 BST 1999

"Simon St.Laurent" <simonstl at> writes:

> Next question... do any XML parsers support URNs?  Do they use these
> resolution protocols?

Hmm -- this sounds like a really good candidate for a SAX conformance
test.  Make up an XML document that references a URN, then implement
an EntityResolver that maps the URN to a URL that actually points to

SAX parsers shouldn't choke on this (even if they know nothing about
URNs), but I'm not willing to bet too much: I think that AElfred might
be OK, and James almost certain does it right in XT.

> URNs feel a lot like FPIs to me in terms of their resolvability and lack of
> infrastructure thereof, and I often wonder if they really belong mixed with
> URLs. Oh well.

Yeah, there's been a lot of discussion on this point.  By the way, do
we have any usable URN schemes yet?

All the best,


David Megginson                 david at

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