Why "string" instead of "uri-reference"?

["John L. Clark" <jlc6@po.cwru.edu>]

In XML Catalog elements such as the uri element, why are the "source"
portions of the mapping (in the case of the uri element, the name
attribute) not specified as being of type uri-reference and subject to
the same base URI resolution effect?  It seems that the functionality
here is to take one URI and map it directly to another URI, and so I
don't understand why it is specified as taking a string and mapping it
to a URI.

Take care,

    John L. Clark

PGP signature