Schematron Tutorial

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Description

Test, if an element is empty

Schema

<schema xmlns="http://www.ascc.net/xml/schematron" >
     <pattern name="Select empty elements CCC">
          <rule context="CCC">
               <assert test="normalize-space(.) and *">Source contains an empty element CCC </assert>
               <report test="normalize-space(.) = ''">[1]An element CCC does not contain any text</report>
               <assert test="normalize-space(.)">[2]An element CCC does not contain any text</assert>
               <report test="not(*)">[1]An element CCC does not contain any child element</report>
               <assert test="*">[2]An element CCC does not contain any child element</assert>
          </rule>
     </pattern>
</schema>

Sources and outputs

Source (XML 1)

Output

Pattern: Select empty elements CCC
/AAA/BBB/CCC: Source contains an empty element CCC /AAA/BBB/CCC: [1]An element CCC does not contain any text /AAA/BBB/CCC: [2]An element CCC does not contain any text /AAA/BBB/CCC: [1]An element CCC does not contain any child element /AAA/BBB/CCC: [2]An element CCC does not contain any child element

Source (XML 2)

Output

<AAA>
     <BBB>
          <CCC>I am CCC element</CCC>
     </BBB>
</AAA>

Pattern: Select empty elements CCC
/AAA/BBB/CCC: Source contains an empty element CCC /AAA/BBB/CCC: [1]An element CCC does not contain any child element /AAA/BBB/CCC: [2]An element CCC does not contain any child element

Source (XML 3)

Output

Pattern: Select empty elements CCC
/AAA/BBB/CCC: Source contains an empty element CCC /AAA/BBB/CCC: [1]An element CCC does not contain any text /AAA/BBB/CCC: [2]An element CCC does not contain any text