Re: [xsl] Using node-set variables in predicates (another node comparison question)

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Am 01.01.2022 um 07:00 schrieb Chris Papademetrious
christopher.papademetrious@xxxxxxxxxxxx:
>
> Hi everyone, and happy new year's!
>
> Let's say I have a variable that contains a set of nodes:
>
> <xsl:variable name="nodes" select="//(foo|bar|baz)"/>
>
> In XPath 3.0, I can apply a template directly to this node-set
> variable (very cool!):
>
> <xsl:template match="$nodes">
>
> However, what's the best way to use this node-set variable as a
> predicate filter? For example, let's say I wanted to select every
> preceding sibling node directly before each node in the variable:
>
> <xsl:template match="preceding-sibling::node()[1][. intersect $nodes]">
>
> The "interesect" operator works, but it's not intuitive. Is there a
> simple Boolean operator that indicates whether a given node exists in
> a set of nodes?
>
Or you can use

 B B  [generate-id() = $nodes!generate-id()]

as the predicate.