Re: Pattern matching error in xsl:key

On 05.09.2020 18:28, Ihe Onwuka wrote:

>      > I am comparing parameters whose values are 4.0 and 4.1
>     respectively to
>      > attributes whose values are 4.0 and 4.1 respectively. Saxon has made
>      > it's own assumptions about what types they are and come up with
>     that error.
>
>     The types are not made up by Saxon but are defined in the XPath/XSLT
>     specs. In the XSLT code if you declare
>
>         <xsl:param name="source" select="4.0"/>
>
>     the expression 4.0 in the select attribute is of type xs:decimal (in a
>     version="2.0" or version="3.0" XSLT code).
>
>     However, in your untyped XML the attribute value of e.g. @from or @to is
>     of type xs:untypedAtomic.
>
>
> Illuminating.
> So if we come up from the weeds of the spec you've basically got a
> situation where the spec is assigning different types to the same
> identical value because they are placed in different constructs.
> So while being correct it's not a very good explanation to have to give.
>
> Note that AFAIA aware at least I cannot supply type information for
> the @from and @to attributes in the context in which they are being used.

With schema-aware XSLT and Saxon EE you can define a schema declaring
the type of the attributes as xs:decimal and then using eq to compare to
your variables of type xs:decimal will work.




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