1<grammar xmlns="http://relaxng.org/ns/structure/1.0">
2
3  <define name="inline">
4    <zeroOrMore>
5      <ref name="inline.class"/>
6    </zeroOrMore>
7  </define>
8
9  <define name="inline.class">
10    <choice>
11      <text/>
12      <element name="bold">
13	<ref name="inline"/>
14      </element>
15      <element name="italic">
16	<ref name="inline"/>
17      </element>
18    </choice>
19  </define>
20
21  <start>
22    <element name="doc">
23      <zeroOrMore>
24	<element name="p">
25	  <ref name="inline"/>
26	</element>
27      </zeroOrMore>
28    </element>
29  </start>
30
31  <define name="inline.class" combine="choice">
32    <choice>
33      <element name="code">
34	<ref name="inline"/>
35      </element>
36      <element name="em">
37	<ref name="inline"/>
38      </element>
39    </choice>
40  </define>
41  
42</grammar>
43