[dsdl-discuss] Re: Selection criteira

On Tue, 2004-04-06 at 10:41, Martin Bryan wrote:

> I'm willing to consider what would make an ideal "Streamable XPath 2.0"
> though I'm far from convinced that being streamable is a necessary condition
> for validation. Pipelining processes does not require that they be streamed.
> I consider pipelines vital, and how they are implemented irrelevant.

Being streamable is what enables applications such as schema guided
editing as demonstrated by James in Philadelphia and I think we should
keep that requirement for most of the parts (including part 4).

> And
> yes, DSDL not only needs to set the bar high, it needs to provide the
> springs to help people jump the bar. If users can't clear the hurdles they
> already face then we have failed. If this means we need ot support the full
> functionality of XML Schemas (if not their diabolical syntax) in some future
> part of the standard so be it.

I am really confused here. If you needed to provide a WXS schema for a
document to support XPath 2.0 features, why would you still need part 4
to validate that document?

I think that if we define subsets of XPath 2.0, we should limit
ourselves to those that do not rely on a PSVI.

Eric

-- 
See you in Amsterdam.
                                               http://www.xmleurope.com/
Upcoming XML schema languages tutorial:
 - Amsterdam   -half day- (18/04/2004)        http://masl.to/?P220516D7
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Eric van der Vlist       http://xmlfr.org            http://dyomedea.com
(ISO) RELAX NG   ISBN:0-596-00421-4 http://oreilly.com/catalog/relax
(W3C) XML Schema ISBN:0-596-00252-1 http://oreilly.com/catalog/xmlschema
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