Re: [xsl] Why does my XSLT produce a Warning message with never-executed code that divides a blank by 10?

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

Am 31.03.2024 um 09:56 schrieb Roger L Costello costello@xxxxxxxxx:
> I have a program that generates this XSLT code:
>
> <xsl:template match="/">
>          <xsl:variable name="test" select="'    '" as="xs:string"/>
>          <xsl:value-of select="
>              if (normalize-space($test) eq '') then ()
>              else xs:integer($test) div 10"/>
> </xsl:template>
>
> When I execute that XSLT code, I get this warning message:
>
> Warning: SXWN9000  Evaluation will always throw a dynamic error: Cannot
convert zero-length string to an integer
> Why am I getting that Warning message?

If you run with -explain then you will see that the variable is inlined
and the expression rewritten.
But I have never really learned to understand the output of -explain
fully so I guess you will have to wait until Michael Kay shows up to
tell you why Saxon gives the warning.