Another errata?

John Cowan cowan at
Mon Feb 1 18:20:47 GMT 1999

Tim Bray scripsit:

> A consequence of this is that
> <html:a href="foo"> is identical to
> <html:a html:href="foo">
> which it might be in some circumstances; but always, for all element
> types and all namespaces?  Tough to buy into.

Why is it so tough?  If the committee decreed it, fine; but I'd like
to see the argument that says the above is implausible.  I find it
eminently plausible.
> In my first few implementations of namespace-savvy software, I've had
> no trouble finding the attributes I needed.  What's a scenario that
> causes problems?  -Tim

The trouble is, I think, that people would like to "intern" (uniquify)
every name in an XML document while parsing it.  Element names can
be converted to URI^Qname, where ^ is some separator, and interned
as such; global attribute names likewise.  But it won't do to identify
all foo attributes (unqualified) across the entire document, as they
may be utterly unrelated.

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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