[xsl] RE: XPath 2.0: Collection-Valued Expressions (Was: Re: XQuery 1.0 and XPath 2.0

["Michael Kay" <mhkay@xxxxxxxxxxxx>]

> Is it because their authors have difficulties in understanding the
> functional-programming approach?
>
I think most members of both the XSL WG and the XQuery WG would have no
difficulty understanding the approach. I think the objections you would
encounter would be:

(a) will users understand it?
(b) can it be statically type-checked and optimized?
(c) if explicit syntax is good enough for SQL, why isn't it good enough for
XQuery?

Why not put together a position paper arguing the case for higher-order
functions in XPath/XQuery: I'll be happy to bring it to the group's
attention. I'd suggest raising it as a comment on the published draft
XQuery/XPath data model.

Mike Kay



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