I'm new to XML and so I'm confused. You reference ISBN
1-894049-08-X Practical Transformation Using XSLT and XPath in your
closing signature, Isn't this the W3C XML Schema?
At 6/6/2002 08:19 AM, G. Ken Holman wrote:
>At 2002-06-05 23:37 -0400, Frank Boumphrey wrote:
>>Some times I think schemas v. DTD's is like religion !
>So true ... then let me be a heretic from what you've said.
>> >No support for namespaces
>>There is no doubt that if namespaces are important to you schemas are the
>>way to go
>I have such doubt. I'm of the opinion that W3C XML Schema disenfranchised
>a lot of the document-oriented community with the reliance on type
>derivation instead of pattern matching. I see it as too complex and, in
>some places, just simply broken and unable to express some of the
>constraints we often need to place on structured information. If it meets
>the needs of data-heads then they can go ahead and use it, but for
>doc-heads and web-heads I'm of the opinion RELAX-NG (pronounced
>"relaxing") is part of the future and is already here for us to use today.
>Namespaces and datatypes are well supported with the RELAX-NG schema
>language, with the added benefits of a cleaner, leaner, well-engineered,
>document-oriented (patterns), simpler, and overall more powerful (much
>better selection of co-occurrence constraints) document modeling language
>with both an XML syntax and a text-based syntax (that reads a bit like EBNF
>when you squint).
>It will soon become an ISO standard as ISO/IEC 19757-2 (part 2 of DSDL -
>Document Schema Definition Languages ), as will Schematron as part
>3. DSDL will describe a pipeline of validation processes allowing a user
>to incorporate numerous technologies (including W3C XML Schema through
>extension if so desired) in the detailed validation of XML content and
>Free tools already exist for RELAX-NG .
>RELAX-NG and DSDL should both become very interesting to document-oriented
>users of XML. I guess the data-heads can go and play in their own sandbox
>if they wish to ... I don't want to be constrained by what they are playing
>I hope this helps.
> http://dsdl.org (a bit out of date; I'm responsible for
> updating the page since the work was restructured last
> week in Barcelona at the most recent international meeting;
> some of the parts are renumbered and the name was made
> plural instead of singular; should be repaired next week)
>Upcoming: 3-days XSLT/XPath and/or 2-days XSL-FO:Sep 30-Oct 4,2002
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>G. Ken Holman mailto:[log in to unmask]
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