[relax-ng-comment] Re: recursive inlusion

[didier demany <didierdemany@yahoo.fr>]

You can alternate including "strong" and "em" elements
in separate documents by this way :
------------------------------------
abc.rng

<grammar>
  <start>
    <element name="abc">
      <zeroOrMore>
        <choice>
          <text/>
          <ref name="strong"/>
          <ref name="em"/>
        </choice>
      </zeroOrMore>
    </element>
  </start>
  <define name="strong">
    <grammar>
      <include href="strong.rng">
        <define name="content">
          <parentRef name="em"/>
        </define>
      </include>
    </grammar>
  </define>
  <define name="em">
    <grammar>
      <include href="em.rng">
        <define name="content">
          <parentRef name="strong"/>
        </define>
      </include>
    </grammar>
  </define>
</grammar>
------------------------------------
strong.rng

<grammar>
  <define name="content">
    <notAllowed/>
  </define>
  <start>
    <element name="strong">
      <oneOrMore>
        <choice>
          <text/>
          <ref name="content"/>
        </choice>
      </oneOrMore>
    </element>
  </start>
</grammar>
------------------------------------
em.rng

<grammar>
  <define name="content">
    <notAllowed/>
  </define>
  <start>
    <element name="em">
      <oneOrMore>
        <choice>
          <text/>
          <ref name="content"/>
        </choice>
      </oneOrMore>
    </element>
  </start>
</grammar>
------------------------------------

The construct is the object of the "Nested grammars"
section of the tutorial
http://www.oasis-open.org/committees/relax-ng/tutorial-20011203.html#IDA3PZR

Best regards,

Didier Demany
didier.demany@xmloperator.net
http://www.xmloperator.net/ : an XML editor


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