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> From which follows, what does 7/5/2002 mean to you? Either we share
> some (date) context that it means 7th of May or it means July 5th.
> It doesn't matter how you represent it so long as we both know how to
> interpret it.
>
> Is there any means of indicating non-W3C types?
>
Sure, you can define a type called american-date as a restriction of
xsd:string, constrained by a regular expression, and you can then define
functions that convert an american-date to an xsd:date and you can then use
standard XQuery functions and operators to do arithmetic on them. No
problem. (Except that you'll confuse European recipients, but we're used to
that).
Michael Kay
Software AG
home: Michael.H.Kay@ntlworld.com
work: Michael.Kay@softwareag.com
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