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Re: [xsl] [XPath 3.0] Why should I bother specifying the "arity" of a function that I invoke?


Subject: Re: [xsl] [XPath 3.0] Why should I bother specifying the "arity" of a function that I invoke?
From: Liam R E Quin <liam@xxxxxx>
Date: Wed, 31 Oct 2012 22:31:21 +0100

On Wed, 2012-10-31 at 21:06 +0000, Costello, Roger L. wrote:
> Hi Folks,
> 
> The XPath 3.0 specification says that when a named function is invoked
> you should specify the number of arguments (i.e., the arity):
> 
> 	NamedFunctionRef 	   ::=    	EQName "#" IntegerLiteral

No, a NamedFunctionRef is a reference to a function - e.g.

let $c := concat#3
return $c('Section', ': ', 1)

You must specify the arity when you are referring to a function in this
way.

Liam

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Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
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