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Re: How to redesign W3C XML Schema (Water Contract)

• To: "xml-dev" <xml-dev@l...>
• Subject: Re: How to redesign W3C XML Schema (Water Contract)
• From: "Rick Jelliffe" <ricko@a...>
• Date: Tue, 18 Feb 2003 17:53:23 +1100
• References: <1045441502.7668.ezmlm@l...> <1045470470.3e509d06a6f80@w...> <00e701c2d6fd$985e9300$6601a8c0@n...>

From: "Mike Plusch" <mplusch@c...>

> If folks are looking for an XML schema that:

> 2. Simpler than Relax NG or Schematron
...
> I recommend folks look at Water Contract.
> http://www.waterlang.org/water_book_2002/ch05.pdf
 
?? If Water Contract is simpler than Schematron, it is only because
apples are simpler than oranges.  

For example, here is a typical Schematron pattern (untested), that the number
of columns in any table should not exceed the cols attribute:

<rule context="tr">
    <assert test="count(td) &lt;= ../table/@cols">
    The number of columns in a table should not exceed the number in the cols attribute.
    </assert>
</rule>

What is the equivalent in Water Contract, and why is it less complex to anyone
who already knows XPaths?   

... (much fulminating deleted)

Cheers
Rick Jelliffe

• Follow-Ups:
  • Re: How to redesign W3C XML Schema (Water Contract)
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• References:
  • Re: How to redesign W3C XML Schema (Was: Remembering the original XML vision)
    • From: Jochen Wiedmann <joe@i...>
  • Re: How to redesign W3C XML Schema (Water Contract)
    • From: "Mike Plusch" <mplusch@c...>

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