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XML comment constructors

File: Data.xml <order>   <car model="A">     <id>0001</id>     <name language="en">name 1</name>   </car>   <car model="B">     <id>0002</id>     <name language="en">name 2</name>   </car>   <car model="B">     <id>0003</id>     <name language="en">name 3</name>   </car> </order> File: Query.xquery let $count := count(doc("Data.xml")//car) return <ul>          {comment{concat(" List of ", $count, " cars ")}}        </ul> Output: <?xml version="1.0" encoding="UTF-8"?> <ul><!-- List of 3 cars --></ul>