Re: [xsl] Contexts that are atomic values

Subject: Re: [xsl] Contexts that are atomic values
From: David Carlisle <davidc@xxxxxxxxx>
Date: Tue, 21 Jun 2005 23:24:29 +0100
> Is this behavior normal?

Yes, or at least it will be. (It's best to say if you are using xslt2:-) 

distinct-values() as its name suggests returns values not teh nodes the
values they were in, so it's like going

<xsl:for-each select="(1,2,3,4)"

in which the current item would be the integers 1 2 3 4 but being
integers rather than nodes they can't be used as the base for any
relative XPath (or even / as that depends on the current dpcument)

you can go 
<xsl:variable name="input" select="/"/>
as a top level variable (or anywhere outside the for-each)
and then use

                 <xsl:apply-templates
                 select="$input/key('by-type',current())"/>
or equivalently


                 <xsl:apply-templates
                 select="key('by-type',current(),$input)"/>

Or perhaps more naturally don't use distinct-values at all, but ciew it
as a grouping problem

<xsl:for-each-group select="item" group-by="@type">
...

for-each-group groups the nodes themselves rather than just the values.

David

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