The pipeline
<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
<p:output port="result">
<p:identity>
<p:with-input>
<result>
<episode>{p:system-property('Q{http://www.w3.org/ns/xproc}episode')}</episode>
<locale>{p:system-property('Q{http://www.w3.org/ns/xproc}locale')}</locale>
<product-name>{p:system-property('Q{http://www.w3.org/ns/xproc}product-name')}</product-name>
<product-version>{p:system-property('Q{http://www.w3.org/ns/xproc}product-version')}</product-version>
<vendor>{p:system-property('Q{http://www.w3.org/ns/xproc}vendor')}</vendor>
<vendor-uri>{p:system-property('Q{http://www.w3.org/ns/xproc}vendor-uri')}</vendor-uri>
<version>{p:system-property('Q{http://www.w3.org/ns/xproc}version')}</version>
<xpath-version>{p:system-property('Q{http://www.w3.org/ns/xproc}xpath-version')}</xpath-version>
<psvi-supported>{p:system-property('Q{http://www.w3.org/ns/xproc}psvi-supported')}</psvi-supported>
</result>
</p:with-input>
</p:identity>
</p:declare-step>
Schematron validation
<s:schema xmlns="http://www.w3.org/1999/xhtml" xmlns:s="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
<s:pattern>
<s:rule context="/">
<s:assert test="result">The document root is not result.</s:assert>
<s:assert test="string-length(result/episode/text()) !=0">Text node of result/episode is empty string.</s:assert>
<s:assert test="string-length(result/locale/text()) !=0">Text node of result/locale is empty string.</s:assert>
<s:assert test="string-length(result/product-name/text()) !=0">Text node of result/product-name is empty string.</s:assert>
<s:assert test="string-length(result/product-version/text()) !=0">Text node of result/product-version is empty string.</s:assert>
<s:assert test="string-length(result/vendor/text()) !=0">Text node of result/vendor is empty string.</s:assert>
<s:assert test="string-length(result/vendor-uri/text()) !=0">Text node of result/vendor-uri is empty string.</s:assert>
<s:assert test="string-length(result/version/text()) !=0">Text node of result/version is empty string.</s:assert>
<s:assert test="string-length(result/xpath-version/text()) !=0">Text node of result/xpath-version is empty string.</s:assert>
<s:assert test="string-length(result/psvi-supported/text()) !=0">Text node of result/psvi-supported is empty string.</s:assert>
</s:rule>
</s:pattern>
</s:schema>
