ebnf.rng #1

<?xml version="1.0" encoding="UTF-8"?>
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  Corporation, Norman Walsh, Sun Microsystems, Inc., and the
  Organization for the Advancement of Structured Information
  Standards (OASIS).
  
  Release: $Id: ebnf.rnc 8931 2010-10-20 13:29:20Z nwalsh $
  
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  ======================================================================
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<grammar ns="http://docbook.org/ns/docbook" xmlns:db="http://docbook.org/ns/docbook" xmlns:s="http://purl.oclc.org/dsdl/schematron" xmlns:rng="http://relaxng.org/ns/structure/1.0" xmlns:ctrl="http://nwalsh.com/xmlns/schema-control/" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
  <start combine="choice">
    <choice>
      <ref name="db.productionset"/>
      <ref name="db.constraintdef"/>
    </choice>
  </start>
  <define name="db.technical.inlines" combine="choice">
    <ref name="db.nonterminal"/>
  </define>
  <define name="db.technical.blocks" combine="choice">
    <choice>
      <ref name="db.productionset"/>
      <ref name="db.constraintdef"/>
    </choice>
  </define>
  <!-- ====================================================================== -->
  <div>
    <db:refname>productionset</db:refname>
    <db:refpurpose>A set of EBNF productions</db:refpurpose>
    <define name="db.productionset.role.attribute">
      <attribute name="role"/>
    </define>
    <define name="db.productionset.attlist">
      <interleave>
        <optional>
          <ref name="db.productionset.role.attribute"/>
        </optional>
        <ref name="db.common.attributes"/>
        <ref name="db.common.linking.attributes"/>
      </interleave>
    </define>
    <define name="db.productionset.info">
      <ref name="db._info.title.only"/>
    </define>
    <define name="db.productionset">
      <element name="productionset">
        <ref name="db.productionset.attlist"/>
        <ref name="db.productionset.info"/>
        <oneOrMore>
          <choice>
            <ref name="db.production"/>
            <ref name="db.productionrecap"/>
          </choice>
        </oneOrMore>
      </element>
    </define>
  </div>
  <!-- ====================================================================== -->
  <div>
    <db:refname>production</db:refname>
    <db:refpurpose>A production in a set of EBNF productions</db:refpurpose>
    <define name="db.production.role.attribute">
      <attribute name="role"/>
    </define>
    <define name="db.production.attlist">
      <interleave>
        <optional>
          <ref name="db.production.role.attribute"/>
        </optional>
        <ref name="db.common.idreq.attributes"/>
        <ref name="db.common.linking.attributes"/>
      </interleave>
    </define>
    <define name="db.production">
      <element name="production">
        <ref name="db.production.attlist"/>
        <ref name="db.lhs"/>
        <ref name="db.rhs"/>
        <zeroOrMore>
          <ref name="db.constraint"/>
        </zeroOrMore>
      </element>
    </define>
  </div>
  <!-- ====================================================================== -->
  <div>
    <db:refname>lhs</db:refname>
    <db:refpurpose>The left-hand side of an EBNF production</db:refpurpose>
    <define name="db.lhs.role.attribute">
      <attribute name="role"/>
    </define>
    <define name="db.lhs.attlist">
      <interleave>
        <optional>
          <ref name="db.lhs.role.attribute"/>
        </optional>
        <ref name="db.common.attributes"/>
        <ref name="db.common.linking.attributes"/>
      </interleave>
    </define>
    <define name="db.lhs">
      <element name="lhs">
        <ref name="db.lhs.attlist"/>
        <text/>
      </element>
    </define>
  </div>
  <!-- ====================================================================== -->
  <div>
    <db:refname>rhs</db:refname>
    <db:refpurpose>The right-hand side of an EBNF production</db:refpurpose>
    <define name="db.rhs.role.attribute">
      <attribute name="role"/>
    </define>
    <define name="db.rhs.attlist">
      <interleave>
        <optional>
          <ref name="db.rhs.role.attribute"/>
        </optional>
        <ref name="db.common.attributes"/>
        <ref name="db.common.linking.attributes"/>
      </interleave>
    </define>
    <define name="db.rhs">
      <element name="rhs">
        <ref name="db.rhs.attlist"/>
        <zeroOrMore>
          <choice>
            <text/>
            <ref name="db.nonterminal"/>
            <ref name="db.lineannotation"/>
            <ref name="db.sbr"/>
          </choice>
        </zeroOrMore>
      </element>
    </define>
  </div>
  <!-- ====================================================================== -->
  <div>
    <db:refname>nonterminal</db:refname>
    <db:refpurpose>A non-terminal in an EBNF production</db:refpurpose>
    <define name="db.nonterminal.role.attribute">
      <attribute name="role"/>
    </define>
    <define name="db.nonterminal.def.attribute">
      <attribute name="def">
        <db:refpurpose>Specifies a URI that points to a <db:tag>production</db:tag>
where the <db:tag>nonterminal</db:tag>
 is defined</db:refpurpose>
        <data type="anyURI"/>
      </attribute>
    </define>
    <define name="db.nonterminal.attlist">
      <interleave>
        <optional>
          <ref name="db.nonterminal.role.attribute"/>
        </optional>
        <ref name="db.common.attributes"/>
        <ref name="db.common.linking.attributes"/>
        <ref name="db.nonterminal.def.attribute"/>
      </interleave>
    </define>
    <define name="db.nonterminal">
      <element name="nonterminal">
        <ref name="db.nonterminal.attlist"/>
        <text/>
      </element>
    </define>
  </div>
  <!-- ====================================================================== -->
  <div>
    <db:refname>constraint</db:refname>
    <db:refpurpose>A constraint in an EBNF production</db:refpurpose>
    <define name="db.constraint.role.attribute">
      <attribute name="role"/>
    </define>
    <define name="db.constraint.attlist">
      <interleave>
        <optional>
          <ref name="db.constraint.role.attribute"/>
        </optional>
        <ref name="db.common.attributes"/>
        <ref name="db.common.req.linking.attributes"/>
      </interleave>
    </define>
    <define name="db.constraint">
      <element name="constraint">
        <ref name="db.constraint.attlist"/>
        <empty/>
      </element>
    </define>
  </div>
  <!-- ====================================================================== -->
  <div>
    <db:refname>productionrecap</db:refname>
    <db:refpurpose>A cross-reference to an EBNF production</db:refpurpose>
    <define name="db.productionrecap.role.attribute">
      <attribute name="role"/>
    </define>
    <define name="db.productionrecap.attlist">
      <interleave>
        <optional>
          <ref name="db.productionrecap.role.attribute"/>
        </optional>
        <ref name="db.common.attributes"/>
        <ref name="db.common.req.linking.attributes"/>
      </interleave>
    </define>
    <define name="db.productionrecap">
      <element name="productionrecap">
        <ref name="db.productionrecap.attlist"/>
        <empty/>
      </element>
    </define>
  </div>
  <!-- ====================================================================== -->
  <div>
    <db:refname>constraintdef</db:refname>
    <db:refpurpose>The definition of a constraint in an EBNF production</db:refpurpose>
    <define name="db.constraintdef.role.attribute">
      <attribute name="role"/>
    </define>
    <define name="db.constraintdef.attlist">
      <interleave>
        <optional>
          <ref name="db.constraintdef.role.attribute"/>
        </optional>
        <ref name="db.common.attributes"/>
        <ref name="db.common.linking.attributes"/>
      </interleave>
    </define>
    <define name="db.constraintdef.info">
      <ref name="db._info.title.only"/>
    </define>
    <define name="db.constraintdef">
      <element name="constraintdef">
        <ref name="db.constraintdef.attlist"/>
        <ref name="db.constraintdef.info"/>
        <oneOrMore>
          <ref name="db.all.blocks"/>
        </oneOrMore>
      </element>
    </define>
  </div>
</grammar>