John Cowan pushes back on IRIs in [baseURI]

While I am very much in favor of allowing IRIs in xml:base attributes,
I believe that it would be improper to expose them as IRIs in the
Infoset's [baseURI] property.  This would in effect be a redefinition
of the term "base URI", and there is no reason for it, since any IRI
can be readily transformed into a URI.

Since the Infoset is abstract, this does not of course prevent any
concrete API or protocol from exposing a base URI in IRI form when
possible.

Also, where are XML Resource Identifiers explained, and do they allow
any or all of "<", ">", '"', space, "{", "}", "|", "\", "^", and "`"
(which cannot appear in IRIs)?

-- 
John Cowan  cowan@ccil.org  www.ccil.org/~cowan  www.ap.org
If I have seen farther than others, it is because I was standing on
the shoulders of giants.
        --Isaac Newton