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RE: Transitive closure for XPath

Subject: RE: Transitive closure for XPath
From: "Michael Kay" <mhkay@xxxxxxxxxxxx>
Date: Mon, 23 Apr 2001 23:01:17 +0100
RE:  Transitive closure for XPath
> So we would still have a closure() function but have a notation for
> delayed evaluation:
> 	closure(/closure/node[1], delay::key("myKey", @child))

The concept you are looking for is "higher-order functions", available in
many functional programming languages. The concept is consistent with the
XPath conceptual model, but disagreeable to those who want the language to
stop short of being a general purpose programming language.

Mike Kay
Software AG

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