1<grammar xmlns="http://relaxng.org/ns/structure/1.0"> 2 <start> 3 <element name="data"> 4 <interleave> 5 <text/> 6 <ref name="inline.class"/> 7 </interleave> 8 </element> 9 </start> 10 11 <define name="inline.class" combine="choice"> 12 <element name="bold"> 13 <ref name="inline"/> 14 </element> 15 </define> 16 17 <define name="inline.class" combine="choice"> 18 <element name="italic"> 19 <ref name="inline"/> 20 </element> 21 </define> 22 23 <define name="inline"> 24 <zeroOrMore> 25 <choice> 26 <text/> 27 <element name="code"> 28 <ref name="inline"/> 29 </element> 30 <element name="em"> 31 <ref name="inline"/> 32 </element> 33 <!-- etc --> 34 </choice> 35 </zeroOrMore> 36 </define> 37</grammar> 38