Re: [xsl] Sequence count vs. context position

["Michael Kay michaelkay90@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

How about key('keyNameb, $keyValue)[not(preceding-sibling::*)]

Michael Kay
Saxonica

> On 4 Oct 2024, at 08:52, Michael Mueller-Hillebrand
michael.mueller-hillebrand@xxxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
wrote:
>
> Dear colleagues,
>
> I am somewhat puzzled by this situation:
>
> key('keyNameb, $keyValue)[1]
>
> From an example in Michael Kaybs XSLT 2.0 bible and the description of
position(), I learn that this form selects the first item in the sequence of
nodes returned by key().
>
> How would I have to write the expression, if I wanted to filter only those
nodes, which are at position 1 in their respective document context? I know I
can have predicates which consider the context of all returned nodes, looking
at ancestors etc. But somehow position() seems to be special.
>
> Thanks a lot,
> Michael
>
> Michael MC<ller-Hillebrand
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