Step available 010 (AB)

The pipeline


<p:declare-step xmlns:ex="http://example.com/ns/xproc-extensions" xmlns:p="http://www.w3.org/ns/xproc" name="main" version="3.0">
   <p:output port="result"/>
   <p:declare-step type="ex:step1">
      <p:input port="source"/>
      <p:output port="result"/>
      <p:declare-step type="ex:step2">
         <p:input port="source"/>
         <p:output port="result"/>
         <p:identity/>
      </p:declare-step>
      <p:identity/>
   </p:declare-step>
   <p:identity>
      <p:with-input use-when="p:step-available('ex:step2')">
         <wrong/>
      </p:with-input>
      <p:with-input use-when="not(p:step-available('ex:step2'))">
         <right/>
      </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="right">The document root is not “right”.</s:assert>
      </s:rule>
   </s:pattern>
</s:schema>

Step available 010 (AB)

The pipeline

Schematron validation

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