Saxon

Following XSLT fails on Saxon EE 10.8J using the default optimization level (-opt:10). Turning the optimization off via -opt:0 returns correct results.

It seems, in this case the optimization does not keep the order of the XPath "selectors".

Error:

  FORG0001  Cannot convert string "" to double
     invoked by built-in template rule (text-only)
Cannot convert string "" to double

Test XSLT:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns="http://www.w3.org/2005/xpath-functions" exclude-result-prefixes="#all" version="3.0" xmlns:saxon="http://saxon.sf.net/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:f="http://aimtec.cz/EDI" xmlns:aim="http://aimtec.cz/INT/mappingDescription">
    <xsl:output encoding="UTF-8" indent="no" method="xml"/>

    <xsl:template match="root">
        <test>
            <!-- Filter in order: name - content - numeric value -->
            <xsl:for-each select="test/*[contains(name(), 'LieferscheinNummer')][. != ''][. != 0]">
                <number>
                    <xsl:value-of select="."/>
                </number>
            </xsl:for-each>
        </test>
    </xsl:template>
</xsl:stylesheet>

Test input:

<?xml version="1.0" encoding="UTF-8"?>
<root>
    <test>
        <LieferscheinNummer_1>1</LieferscheinNummer_1>
        <LieferscheinNummer_2>0</LieferscheinNummer_2>
    </test>
    <test>
        <LieferscheinNummer_1>2</LieferscheinNummer_1>
        <LieferscheinNummer_2/>
    </test>
</root>

Expected output:

<?xml version="1.0" encoding="UTF-8"?>
<test xmlns="http://www.w3.org/2005/xpath-functions">
    <number>1</number>
    <number>2</number>
</test>