Re: [xsl] deep-equal behaves differently when node is stored in a variable

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

On 15/04/2025 23:11, Wolfhart Totschnig wolfhart.totschnig@xxxxxxxxxxx
wrote:
> Dear list,
>
> I would like to ask for your help with the following puzzling behavior
> that I have encountered. The situation is that I am testing whether
> the context node, which is a <person> element with child elements
> (first?, middle?, last), is deep-equal to one of a set of other nodes.
> I found the following solution:
>
> some $p in //person satisfies deep-equal($p, .)
>
> However, when I store the context node in a variable, like so:
>
> <xsl:variable name="person">
> \xA0\xA0 <xsl:copy-of select="."/>
> </xsl:variable>


That creates a document node containing a copy of the context node, so
you either need

B  <xsl:variable name="person" select="."/>

or, if you, for reasons I don't see, want to use the inner selection, use

B  <xsl:variable name="person" as="node()">

B B B B  <xsl:sequence select="."/>

B  </xsl:variable>

> and then make the comparison with the variable, like so:
>
> some $p in //person satisfies deep-equal($p, $person)
>
> then the test comes out false. Why is that? Why does it make a
> difference whether I store the context node in a variable or call it
> directly?
A document node is not deep-equal to an element node.