[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Why does my XSLT produce a Warning message with n
Usual problem when technology tries to be smart but isn't quite smart enough. Saxon is smart enough to work out that if `xs:integer($test)` is ever evaluated then it will give a failure. It's not smart enough to work out that the expression will never be evaluuated. Well, actually it is, but it only works that out AFTER outputting the warning. Clearly there's scope for improvement. On the other hand, your code is a rather convoluted way of writing <xsl:template match="/"/> so a warning is not entirely inappropriate. But you say it's generated code, and it's very normal for generated code to produce all sorts of warnings. We generate C# code for the SaxonCS product and the simplest way to avoid zillions of warnings is simply to switch them off (which C# allows us to do selectively). Michael Kay Saxonica > On 31 Mar 2024, at 08:56, Roger L Costello costello@xxxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hi Folks, > > I have a program that generates this XSLT code: > > <xsl:template match="/"> > <xsl:variable name="test" select="' '" as="xs:string"/> > <xsl:value-of select=" > if (normalize-space($test) eq '') then () > else xs:integer($test) div 10"/> > </xsl:template> > > When I execute that XSLT code, I get this warning message: > > Warning: SXWN9000 Evaluation will always throw a dynamic error: Cannot convert zero-length string to an integer > > Why am I getting that Warning message? This: > > xs:integer($test) div 10 > > will never be executed because of this: > > if (normalize-space($test) eq '') then () > > So I don't understand why I am getting the Warning message. > > How can the XSLT code be written so that, when executed, it doesn't produce a Warning message? Note: recall that I have a program that generates the XSLT code. Sometimes the program generates $test with a blank value, other times the program generates $test with a numeric value. The generated XSLT code needs to work with both cases. > > /Roger
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