Re: [xml-dev] Who can implement W3C XML Schema ?

[ht@cogsci.ed.ac.uk (Henry S. Thompson)]

Rick Jelliffe <ricko@allette.com.au> writes:

> Surely the third <any> element in the instance is invalid?  It has
> three tokens in it.

'xs:token' is, as someone else (Eric?) recently observed, badly named
-- it should be 'xs:tokenizedString' -- it's just 'xs:string' with
whitespace='collapse'

The _fourth_ <any> element is invalid, however, for the reason you cite.

> > I may also still have missed something in the rec and my example may be 
> > invalid, but the point would remain that if you take 4 W3C XML Schema 
> > processors on a simple test case, you have very often 4 different answers.
> 
> Two of the products Eric are using are betas (MSXML and Xerces) and
> the XML Spy is not the most recent (I don't know if it fixes the
> problem, and I don't know if the Turbo XML is the most recent.)  All
> it shows is that developers are leaving this till last or too late,
> rather than that there is some crisis of complexity.

I agree with Rick here -- the REC is not quite 6 months old, there are 
at least half-a-dozen implementations out there, and they're all
upgrading rapidly.  I would note that whitespace processing is a
long-standing source of corner cases:  XML 1.0 processors don't all
get it right to this day, and there were several errata in this area.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2001, part-time member of W3C Team
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