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RE: RE: XQuery and DTD/Schema?

• To: "'Dare Obasanjo'" <dareo@m...>,"'Mike Champion'" <mc@x...>,<xml-dev@l...>
• Subject: RE: RE: XQuery and DTD/Schema?
• From: "Michael Kay" <michael.h.kay@n...>
• Date: Thu, 4 Jul 2002 09:31:25 +0100
• Importance: Normal
• In-reply-to: <8BD7226E07DDFF49AF5EF4030ACE0B7E06621D9C@r...>
• Reply-to: <michael.h.kay@n...>

> 
> > I can think of lots of scenarios where I would want my
> > get-total() function to 
> > process the  "merely well-formed elements whose name happens 
> > to be 'invoice'".
> > 
> 
> I agree. I am both dissappointed and stunned that such functionality
> does not exist in XQuery. 
>
  
Of course this functionality exists.

function getTotal (element* $nodes) {
  return sum(for $x in $nodes[self::invoice] return
number($x//item/@price))
}

The fact that you are allowed to write specific types in function
signatures doesn't stop you writing generic ones if you prefer.

Michael Kay
Software AG
home: Michael.H.Kay@n...
work: Michael.Kay@s... 

• References:
  • RE: RE: XQuery and DTD/Schema?
    • From: "Dare Obasanjo" <dareo@m...>

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