On Mon, 13 Dec 2010 16:01:11 +0700, James Clark wrote:
> I wrote a post describing a fairly minimal subset of XML:
>
>    http://blog.jclark.com/2010/12/microxml.html

Nice.  I like the way that it copes with namespaces; I think it may
improve upon Michael Kay's suggestion, even.

I have a problem with it.

How do I tell whether it's safe to use my uXML parser instead of my
(heavier) XML 1.0 + Namespace in XML + XML:Base + XML:ID + whatever
parser?

XML declaration not allowed.  XML 1.0 and uXML are placed in the
position of both claiming to be the canonical format indicated by the
absence of a declaration.