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Re: Using Key in the middle of Xpath

Subject: Re: Using Key in the middle of Xpath
From: "Wendell Piez wapiez@xxxxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 19 Jan 2015 18:04:19 -0000
Re:  Using Key in the middle of Xpath

But let's not forget the ordinary case of //aaa/bbb/key('mykey',@ref)/fooval)

where the second argument (and not only the implicit third argument)
to key() is relative to the evaluation context.

Nor is it unheard of to string more than one call to key() in a single path ...

Cheers, Wendell

On Mon, Jan 19, 2015 at 11:03 AM, Michael Kay mike@xxxxxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>> <xsl:variable name = "foo" select = "//aaa/bbb/key('mykey','myval')/fooval"/>
>> where key is :
>> <xsl:key name = "mykey" select = "ccc/ddd" use = "@id"/>
> It doesn't make much sense. The expression has exactly the same result as
>> <xsl:variable name = "foo" select = "key('mykey','myval')/fooval"/>
> There are cases where using key() after "/" would make sense to select the document to be searched, but in this cases all the nodes are in the context document so it makes no difference.
> Michael Kay
> Saxonica

Wendell Piez | http://www.wendellpiez.com
XML | XSLT | electronic publishing
Eat Your Vegetables

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