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

["Chris Papademetrious christopher.papademetrious@xxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Hi Norman and Graydon,

This was indeed the issue. I added as="attribute()" to the function parameter
and variable inside the function, and it works perfectly!

Many thanks,

 - Chris


-----Original Message-----
From: Norman Tovey-Walsh ndw@xxxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Tuesday, June 30, 2020 12:19 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [xsl] getting "Cannot create an attribute node (...) whose parent
is a document node" when copying attribute nodes through an XSLT function

>     <!-- make a copy of the attributes (a proxy for processing) and return
them -->
>     <xsl:function name="mine:recopy">

Try <xsl:function name="mine:recopy" as="attribute()*">

I think whatbs happening is that, because your function doesnbt declare
its return type, what itbs returning is wrapped in a document node and you
canbt do that with attributes.


-----Original Message-----
From: Graydon graydon@xxxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Tuesday, June 30, 2020 12:17 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [xsl] getting "Cannot create an attribute node (...) whose parent
is a document node" when copying attribute nodes through an XSLT function

On Tue, Jun 30, 2020 at 04:10:23PM -0000, Chris Papademetrious
christopher.papademetrious@xxxxxxxxxxxx scripsit:
> 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()*".