metanorma/metanorma-gb

<?xml version="1.0" encoding="UTF-8"?>
<grammar xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
  <!--
    Presupposes isodoc.rnc, is included in it
    include "isodoc.rnc" { }
  -->
  <define name="requirement">
    <element name="requirement">
      <ref name="RequirementType"/>
    </element>
  </define>
  <define name="recommendation">
    <element name="recommendation">
      <ref name="RequirementType"/>
    </element>
  </define>
  <define name="permission">
    <element name="permission">
      <ref name="RequirementType"/>
    </element>
  </define>
  <define name="RequirementType">
    <optional>
      <attribute name="obligation">
        <ref name="ObligationType"/>
      </attribute>
    </optional>
    <optional>
      <attribute name="unnumbered">
        <data type="boolean"/>
      </attribute>
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    <optional>
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      <attribute name="subsequence"/>
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      <attribute name="keep-with-next">
        <data type="boolean"/>
      </attribute>
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      <attribute name="keep-lines-together">
        <data type="boolean"/>
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      <attribute name="filename"/>
    </optional>
    <optional>
      <attribute name="model"/>
    </optional>
    <optional>
      <attribute name="type"/>
    </optional>
    <optional>
      <ref name="reqtitle"/>
    </optional>
    <optional>
      <ref name="label"/>
    </optional>
    <optional>
      <ref name="subject"/>
    </optional>
    <zeroOrMore>
      <ref name="reqinherit"/>
    </zeroOrMore>
    <zeroOrMore>
      <ref name="classification"/>
    </zeroOrMore>
    <zeroOrMore>
      <choice>
        <ref name="measurementtarget"/>
        <ref name="specification"/>
        <ref name="verification"/>
        <ref name="import"/>
        <ref name="description"/>
      </choice>
    </zeroOrMore>
    <optional>
      <ref name="reqt_references"/>
    </optional>
    <zeroOrMore>
      <choice>
        <ref name="requirement"/>
        <ref name="recommendation"/>
        <ref name="permission"/>
      </choice>
    </zeroOrMore>
  </define>
  <define name="reqtitle">
    <element name="title">
      <ref name="FormattedString"/>
    </element>
  </define>
  <define name="label">
    <element name="label">
      <text/>
    </element>
  </define>
  <define name="subject">
    <element name="subject">
      <text/>
    </element>
  </define>
  <define name="reqinherit">
    <element name="inherit">
      <text/>
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    <element name="measurement-target">
      <ref name="RequirementSubpart"/>
    </element>
  </define>
  <define name="specification">
    <element name="specification">
      <ref name="RequirementSubpart"/>
    </element>
  </define>
  <define name="verification">
    <element name="verification">
      <ref name="RequirementSubpart"/>
    </element>
  </define>
  <define name="import">
    <element name="import">
      <ref name="RequirementSubpart"/>
    </element>
  </define>
  <define name="description">
    <element name="description">
      <ref name="RequirementSubpart"/>
    </element>
  </define>
  <define name="reqt_references">
    <element name="references">
      <oneOrMore>
        <ref name="bibitem"/>
      </oneOrMore>
    </element>
  </define>
  <define name="RequirementSubpart">
    <optional>
      <attribute name="type"/>
    </optional>
    <optional>
      <attribute name="exclude">
        <data type="boolean"/>
      </attribute>
    </optional>
    <optional>
      <attribute name="keep-with-next">
        <data type="boolean"/>
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    <optional>
      <attribute name="keep-lines-together">
        <data type="boolean"/>
      </attribute>
    </optional>
    <oneOrMore>
      <ref name="BasicBlock"/>
    </oneOrMore>
  </define>
  <define name="ObligationType">
    <choice>
      <value>requirement</value>
      <value>recommendation</value>
      <value>permission</value>
    </choice>
  </define>
  <define name="classification">
    <element name="classification">
      <ref name="classification_tag"/>
      <ref name="classification_value"/>
    </element>
  </define>
  <define name="classification_tag">
    <element name="tag">
      <text/>
    </element>
  </define>
  <define name="classification_value">
    <element name="value">
      <text/>
    </element>
  </define>
</grammar>