test/relaxng/558452.rng

   1 <?xml version="1.0"?>
   2 <grammar ns="http://www.example.com/choice"
   3          xmlns="http://relaxng.org/ns/structure/1.0">
   4   <start>
   5     <element name="doc" ns="">
   6       <ref name="elem"/>
   7       <optional>
   8         <ref name="elem"/>
   9         <optional>
  10           <ref name="elem"/>
  11         </optional>
  12       </optional>
  13     </element>
  14   </start>
  15
  16   <define name="elem">
  17     <element name="elem" ns="">
  18       <text/>
  19     </element>
  20   </define>
  21 </grammar>