Re: [xsl] getting "Cannot create an attribute node (...) whose parent is a document node" when copying attribute nodes through an XSLT function

["Graydon graydon@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

On Tue, Jun 30, 2020 at 04:10:23PM -0000, Chris Papademetrious christopher.papademetrious@xxxxxxxxxxxx scripsit:
> Hello! Language is XSLT 2.0, processor is Saxon-PE 9.9.1.7 in Oxygen XML Editor v22.1.
> 
> I'm trying to pass attribute nodes from an element template to a function, make a modified copy of the attributes inside the function, then return them for inclusion in the element. But when I attempt this, I get
> 
> Cannot create an attribute node (class) whose parent is a document node.

You put the attributes in a variable:

<xsl:variable name="new_atts">
    <xsl:sequence select="$orig_atts"/>
</xsl:variable>

By default, any untyped variable will be created as a document node.

You avoid that by using "as" to specify a type, specifically that this
variable is a sequence of one or more attributes:

<xsl:variable name="new_atts" as="attribute()+">
    <xsl:sequence select="$orig_atts"/>
</xsl:variable>

(Possibly zero or more, which would make it "attribute()*".

-- 
Graydon Saunders  | graydonish@xxxxxxxxx
^fs oferiode, pisses swa mfg.
-- Deor  ("That passed, so may this.")