<grammar xmlns="http://relaxng.org/ns/structure/1.0" ns="backward-include-def.rng"> | |
<include href="backward-include-ref.rng" /> | |
<start> | |
<element name="t"> | |
<ref name="foo" /> | |
</element> | |
</start> | |
<define name="foo"> | |
<element name="foo"> | |
<ref name="backward" /> | |
</element> | |
</define> | |
<define name="backward"> | |
<element name="x"><empty /></element> | |
</define> | |
</grammar> |