Re: key function - document node

It's all there in the spec:

[ERR XTDE1270]  <>It is a dynamic error <https://www.w3.org/TR/xslt-30/#dt-dynamic-error> to call the key <https://www.w3.org/TR/xslt-30/#func-key> function with two arguments if there is no context node <https://www.w3.org/TR/xslt-30/#dt-context-node>, or if the root of the tree containing the context node is not a document node; or to call the function with three arguments if the root of the tree containing the node supplied in the third argument is not a document node.

Michael Kay
Saxonica

> On 3 Sep 2020, at 20:46, Ihe Onwuka <[email protected]> wrote:
> 
> Well I only got a correct result by wrapping an xsl:document around  element in the variable ......shrugs. 
> 
> 
> On Thu, Sep 3, 2020 at 2:57 PM Michael Kay <mike-JkSD5nQpfvpWk0Htik3J/[email protected] <mailto:mike-JkSD5nQpfvpWk0Htik3J/[email protected]>> wrote:
> No, it should produce the correct result ;-)
> 
> The third parameter scopes the result; nodes will only be selected by the key() function if they are withing the subtree rooted at the node given in the third argument.
> 
> Michael Kay
> Saxonica
> 
>> On 3 Sep 2020, at 19:18, Ihe Onwuka <[email protected] <mailto:[email protected]>> wrote:
>> 
>> I amended an invocation to the key function wherein the 3rd parameter was not a document node but was a variable with an element type declaration. I got no error or warning but the stylesheet executed to completion and provided the wrong result. 
>> 
>> Is this what should happen?
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