RE: [xml-dev] Can anyURI be empty?

["Michael Kay" <michael.h.kay@ntlworld.com>]

> If it couldn't, it would be wrong. An empty string is a valid URI.

On this, like so many other things, RFC 2396 is a total disaster. An empty
string is not valid according to the BNF syntax, but the RFC gives detailed
semantics for what it means (detailed semantics, though very imprecise
semantics).

And the schema REC doesn't help. It has the famous note saying that the
definition places "only very modest obligations" on an implementation, and
it doesn't say what those obligations are.

Michael Kay