Error Text=<let> has no 'value', but the schematro is valid

[MarcoKnezevichInsiel]

Hi, I'm facing this error:

The passed schema is not valid and can therefore not be bound: [[SingleError@0x17a5b5fd: ErrorLevel=ERROR; ErrorFieldName=PSLet; ErrorLocation=[]; ErrorText=[Text=<let> has no 'value']]]] with root cause com.helger.schematron.pure.binding.SchematronBindException: The passed schema is not valid and can therefore not be bound: [[SingleError@0x17a5b5fd: ErrorLevel=ERROR; ErrorFieldName=PSLet; ErrorLocation=[]; ErrorText=[Text=<let> has no 'value']]]

with the schematron in attach. The schematron seams to be valid, is an official schematron of Italian Ministry of Health available also here:

https://github.com/ministero-salute/it-fse-catalogs/blob/main/schematron/schematronFSE_RAP_1.3.sch

The plugin version is:

<dependency>
    <groupId>com.helger.maven</groupId>
    <artifactId>ph-schematron-maven-plugin</artifactId>
    <version>8.0.6</version>
</dependency>

Perhaps there is a bug?

schematronFSE_RAP_1.3.sch.txt

[phax]

Hi @MarcoKnezevichInsiel,
Thanks for bringing that up. Indeed, it seems like a code piece like that triggers this:

			<let name="errorPathObs">
				<xsl:for-each select="ancestor::*[not(self::hl7:ClinicalDocument)]">
					<xsl:value-of select="concat('/', name())"/>
				</xsl:for-each>
			</let>

Let me evaluate...

[phax]

The specification states:

The required name attribute is the name of the variable. The value attribute is an expression evaluated in the current context. If no value attribute is specified, the value of the attribute is the element content of the let element.

So indeed, the Schematron is correct and you found a bug

[MarcoKnezevichInsiel]

Thank you very much for analysing the problem, I hope it can be solved.

[MarcoKnezevichInsiel]

Hi, any good news about this bug?

[phax]

Not yet, but I have it on my agenda. It might be a bigger thing...