The pipeline
<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" name="pipeline" version="3.0">
<p:output port="result"/>
<p:unwrap match="section">
<p:with-input>
<p:inline document-properties="map{'base-uri' : 'http://xproc.org/ns/testsuite/3.0', 'serialization' : map{'indent' : true()}, 'prop' : 'bonus'}">
<document>
<section>
<p>This is just some text.</p>
</section>
</document>
</p:inline>
</p:with-input>
</p:unwrap>
<p:cast-content-type content-type="application/xml">
<p:with-input select="p:document-properties(.)"/>
</p:cast-content-type>
</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:ns prefix="j" uri="http://www.w3.org/2005/xpath-functions"/>
<s:pattern>
<s:rule context="/">
<s:assert test="j:map">The root is not 'j:map'.</s:assert>
<s:assert test="j:map/j:string[@key='content-type'] = 'application/xml'">Content-type is not application/xml.</s:assert>
<s:assert test="j:map/j:string[@key='base-uri'] = 'http://xproc.org/ns/testsuite/3.0'">Base-uri is not correct.</s:assert>
<s:assert test="j:map/j:map[@key='serialization']">The serialization map is not perserved.</s:assert>
<s:assert test="j:map/j:string[@key='prop'] = 'bonus'">The property 'prop' is not 'bonus'.</s:assert>
</s:rule>
</s:pattern>
</s:schema>
