[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

Subject: Re: Why does my XSLT produce a Warning message with never-executed code that divides a blank by 10?
From: "Imsieke, Gerrit, le-tex gerrit.imsieke@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 31 Mar 2024 08:19:34 -0000
Re:  Why does my XSLT produce a Warning message with  n
Hi Roger,

I don't know why Saxon doesn't determine that the xs:integer() branch will only be reached when normalize-space($test) has a length > 0.

Interestingly, there is no warning (only a dynamic error when executing) for

$test ! xs:integer(.) div 10

Maybe generate the following expression, it won't cause a warning either, and it will give the same result as your code (with an additional check that $test is actually castable as xs:integer):

$test[. castable as xs:integer] ! xs:integer(.) div 10

or for XPath 2.0

for $t in $test[. castable as xs:integer] return xs:integer($t) div 10

Gerrit


On 31.03.2024 09:56, Roger L Costello costello@xxxxxxxxx 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




-- Gerrit Imsieke GeschC$ftsfC<hrer / Managing Director le-tex publishing services GmbH Weissenfelser Str. 84, 04229 Leipzig, Germany Phone +49 341 355356 110, Fax +49 341 355356 510 gerrit.imsieke@xxxxxxxxx, http://www.le-tex.de

Registergericht / Commercial Register: Amtsgericht Leipzig
Registernummer / Registration Number: HRB 24930

GeschC$ftsfC<hrer / Managing Directors:
Gerrit Imsieke, Svea Jelonek, Thomas Schmidt

Current Thread

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.