eac-f.rng

<!-- Version 0.9 Salvatore Vassallo

First attemp to create a schema to encode function conforms to ISDF.

This schema is mainly based on EAC-CPF one, see http://eac.staatsbibliothek-berlin.de

-->

<grammar datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes"
    ns="https://github.com/svassallo/EAC-F" xmlns="http://relaxng.org/ns/structure/1.0"
    xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0"
    xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xml="http://www.w3.org/XML/1998/namespace">
    <start>
        <ref name="e.eac-f"/>
    </start>
    <define name="e.eac-f">
        <element a:id="eac-f" name="eac-f">
            <optional>
                <ref name="id"/>
            </optional>
            <optional>
                <ref name="lang"/>
            </optional>
            <optional>
                <ref name="base"/>
            </optional>
            <ref name="e.control"/>
            <ref name="e.fDescription"/>
        </element>
    </define>

    <!-- Control section -->
    <div a:documentation="Control">

        <define name="e.control">
            <element a:id="control" name="control">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="base"/>
                </optional>
                <element a:id="recordId" name="recordId">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <data type="NMTOKEN"/>
                </element>
                <zeroOrMore>
                    <element a:id="otherRecordId" name="otherRecordId">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <ref name="m.id"/>
                    </element>
                </zeroOrMore>
                <element a:id="maintenanceStatus" name="maintenanceStatus">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <choice>
                        <value>revised</value>
                        <value>deleted</value>
                        <value>new</value>
                        <value>deletedSplit</value>
                        <value>deletedReplaced</value>
                        <value>cancelled</value>
                        <value>derived</value>
                    </choice>
                </element>
                <optional>
                    <element a:id="publicationStatus" name="publicationStatus">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <choice>
                            <value>inProcess</value>
                            <value>approved</value>
                        </choice>
                    </element>
                </optional>
                <ref name="e.maintenanceAgency"/>
                <optional>
                    <ref name="e.languageDeclaration"/>
                </optional>
                <zeroOrMore>
                    <ref name="e.conventionDeclaration"/>
                </zeroOrMore>
                <zeroOrMore>
                    <ref name="e.localTypeDeclaration"/>
                </zeroOrMore>
                <zeroOrMore>
                    <ref name="e.localControl"/>
                </zeroOrMore>
                <ref name="e.maintenanceHistory"/>
                <optional>
                    <ref name="e.sources"/>
                </optional>
            </element>
        </define>

        <define name="e.maintenanceAgency">
            <element a:id="maintenanceAgency" name="maintenanceAgency">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <element a:id="agencyCode" name="agencyCode">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <ref name="m.data.standardRepository"/>
                    </element>
                </optional>
                <zeroOrMore>
                    <element a:id="otherAgencyCode" name="otherAgencyCode">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <ref name="a.localType"/>
                        <data type="NMTOKEN"/>
                    </element>
                </zeroOrMore>
                <element a:id="agencyName" name="agencyName">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <text/>
                </element>
                <optional>
                    <ref name="e.descriptiveNote"/>
                </optional>
            </element>
        </define>

        <define name="e.maintenanceHistory">
            <element a:id="maintenanceHistory" name="maintenanceHistory">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <oneOrMore>
                    <element a:id="maintenanceEvent" name="maintenanceEvent">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <optional>
                            <ref name="lang"/>
                        </optional>
                        <element a:id="eventType" name="eventType">
                            <optional>
                                <ref name="id"/>
                            </optional>
                            <choice>
                                <value>created</value>
                                <value>revised</value>
                                <value>deleted</value>
                                <value>cancelled</value>
                                <value>derived</value>
                                <value>updated</value>
                            </choice>
                        </element>
                        <element a:id="eventDateTime" name="eventDateTime">
                            <optional>
                                <ref name="id"/>
                            </optional>
                            <optional>
                                <ref name="lang"/>
                            </optional>
                            <optional>
                                <attribute a:id="standardDateTime" name="standardDateTime">
                                    <ref name="m.data.standardDateTime"/>
                                </attribute>
                            </optional>
                            <text/>
                        </element>
                        <element a:id="agentType" name="agentType">
                            <optional>
                                <ref name="id"/>
                            </optional>
                            <choice>
                                <value>human</value>
                                <value>machine</value>
                            </choice>
                        </element>
                        <element a:id="agent" name="agent">
                            <optional>
                                <ref name="id"/>
                            </optional>
                            <optional>
                                <ref name="lang"/>
                            </optional>
                            <text/>
                        </element>
                        <optional>
                            <element a:id="eventDesccription" name="eventDescription">
                                <optional>
                                    <ref name="id"/>
                                </optional>
                                <optional>
                                    <ref name="lang"/>
                                </optional>
                                <text/>
                            </element>
                        </optional>
                    </element>
                </oneOrMore>
            </element>
        </define>

        <define name="e.languageDeclaration">
            <element a:id="languageDeclaration" name="languageDeclaration">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <ref name="e.language"/>
                <ref name="e.script"/>
                <optional>
                    <ref name="e.descriptiveNote"/>
                </optional>
            </element>
        </define>

        <define name="e.conventionDeclaration">
            <element a:id="conventionDeclaration" name="conventionDeclaration">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="e.abbreviation"/>
                </optional>
                <ref name="e.citation"/>
                <optional>
                    <ref name="e.descriptiveNote"/>
                </optional>
            </element>
        </define>

        <define name="e.localTypeDeclaration">
            <element a:id="localTypeDeclaration" name="localTypeDeclaration">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="e.abbreviation"/>
                </optional>
                <ref name="e.citation"/>
                <optional>
                    <ref name="e.descriptiveNote"/>
                </optional>
            </element>
        </define>

        <define name="e.abbreviation">
            <element a:id="abbreviation" name="abbreviation">
                <optional>
                    <ref name="id"/>
                </optional>
                <data type="token"/>
            </element>
        </define>

        <define name="e.localControl">
            <element a:id="localControl" name="localControl">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <ref name="a.localType"/>
                <optional>
                    <ref name="e.term"/>
                </optional>
                <optional>
                    <choice>
                        <ref name="e.dateSingle"/>
                        <ref name="e.dateRange"/>
                    </choice>
                </optional>
            </element>
        </define>

        <define name="e.sources">
            <element a:id="sources" name="sources">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="base"/>
                </optional>
                <oneOrMore>
                    <element a:id="source" name="source">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <optional>
                            <ref name="a.lastDateTimeVerified"/>
                        </optional>
                        <optional>
                            <ref name="simpleLink"/>
                        </optional>
                        <oneOrMore>
                            <element a:id="sourceEntry" name="sourceEntry">
                                <optional>
                                    <ref name="id"/>
                                </optional>
                                <optional>
                                    <ref name="m.entryLanguageAttributes"/>
                                </optional>
                                <text/>
                            </element>
                        </oneOrMore>
                        <a:documentation>objectXMLWrap and objectBinWrap could be too problematic
                            (recursion and so on). I cut them out and so sourceEntry should be
                            mandatory.</a:documentation>
                        <optional>
                            <ref name="e.descriptiveNote"/>
                        </optional>
                    </element>
                </oneOrMore>
            </element>
        </define>
    </div>

    <!-- fDescription section -->
    <define name="e.fDescription">
        <element a:id="fDescription" name="fDescription">
            <optional>
                <ref name="id"/>
            </optional>
            <optional>
                <ref name="lang"/>
            </optional>
            <optional>
                <ref name="base"/>
            </optional>
            <ref name="e.identity"/>
            <optional>
                <ref name="e.description"/>
            </optional>
            <optional>
                <ref name="e.relations"/>
            </optional>
            <optional>
                <ref name="e.alternativeSet"/>
            </optional>
        </element>
    </define>

    <!-- Identity section -->
    <div a:documentation="Identity">

        <define name="e.identity">
            <element a:id="identity" name="identity">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="base"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <zeroOrMore>
                    <element a:id="entityId" name="entityId">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <ref name="m.id"/>
                    </element>
                </zeroOrMore>
                <element a:id="entityType" name="entityType">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <text/>
                </element>
                <oneOrMore>
                    <choice>
                        <ref name="e.nameEntryParallel"/>
                        <element a:id="nameEntry" name="nameEntry">
                            <optional>
                                <ref name="id"/>
                            </optional>
                            <ref name="m.entryLanguageAttributes"/>
                            <optional>
                                <ref name="a.localType"/>
                            </optional>
                            <oneOrMore>
                                <ref name="e.part"/>
                            </oneOrMore>
                            <optional>
                                <ref name="e.useDates"/>
                            </optional>
                            <ref name="m.nameEntryAuthorizedorAlternative"/>
                        </element>
                    </choice>
                </oneOrMore>
                <!-- Classification: zeroOrMore? which attributes? -->
                <optional>
                    <element name="classification">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <ref name="m.id"/>
                    </element>
                </optional>
                <optional>
                    <ref name="e.descriptiveNote"/>
                </optional>
            </element>
        </define>

        <define name="e.part">
            <element a:id="part" name="part">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <text/>
            </element>
        </define>

        <define name="e.useDates">
            <element a:id="useDates" name="useDates">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <ref name="m.dates"/>
            </element>
        </define>

        <define name="e.nameEntryParallel">
            <element a:id="nameEntryParallel" name="nameEntryParallel">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <ref name="m.nameEntryInParallel"/>
                <oneOrMore>
                    <ref name="m.nameEntryInParallel"/>
                </oneOrMore>
                <optional>
                    <ref name="e.useDates"/>
                </optional>
                <ref name="m.nameEntryAuthorizedorAlternative"/>
            </element>
        </define>

        <define name="m.nameEntryInParallel">
            <element a:id="nameEntryInParallel" name="nameEntry">
                <optional>
                    <ref name="id"/>
                </optional>
                <ref name="m.entryLanguageAttributes"/>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <oneOrMore>
                    <ref name="e.part"/>
                </oneOrMore>
                <zeroOrMore>
                    <element a:id="preferredForm" name="preferredForm">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <data type="NMTOKEN">
                            <!-- NMTOKEN instead of maintenance agency code constraints because the
code may be a non-conforming, i.e. otherAgencyCode -->
                        </data>
                    </element>
                </zeroOrMore>
            </element>
        </define>

        <define name="m.nameEntryAuthorizedorAlternative">
            <zeroOrMore>
                <choice>
                    <element a:id="authorizedForm" name="authorizedForm">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <data type="NMTOKEN"/>
                    </element>
                    <element a:id="alternativeForm" name="alternativeForm">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <data type="NMTOKEN"/>
                    </element>
                </choice>
            </zeroOrMore>
        </define>
    </div>

    <!-- Description -->
    <div a:documentation="Description">

        <define name="e.description">
            <element a:id="description" name="description">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="base"/>
                </optional>
                <optional>
                    <ref name="e.durationDates"/>
                </optional>
                <zeroOrMore>
                    <choice>
                        <ref name="e.localDescription"/>
                        <ref name="e.localDescriptions"/>
                        <ref name="e.legislation"/>
                        <ref name="e.legislations"/>
                        <ref name="e.purpose"/>
                    </choice>
                </zeroOrMore>
                <zeroOrMore>
                    <ref name="e.history"/>
                </zeroOrMore>
                <!-- Todo eac-cpf:bioghist is more similar to eac-f:description or to eac-f:history? -->
            </element>
        </define>

        <define name="e.durationDates">
            <element a:id="durationDates" name="durationDates">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <ref name="m.dates"/>
                <optional>
                    <ref name="e.descriptiveNote"/>
                </optional>
            </element>
        </define>

        <div a:documentation="Plural Versions">
            <define name="e.localDescriptions">
                <element a:id="localDescriptions" name="localDescriptions">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <ref name="a.localType"/>
                    <choice>
                        <group>
                            <oneOrMore>
                                <ref name="e.localDescription"/>
                            </oneOrMore>
                            <optional>
                                <ref name="e.descriptiveNote"/>
                            </optional>
                        </group>
                        <zeroOrMore>
                            <ref name="m.discursiveSet"/>
                        </zeroOrMore>
                    </choice>
                </element>
            </define>
            <define name="e.legislations">
                <element a:id="legislations" name="legislations">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <choice>
                        <group>
                            <oneOrMore>
                                <ref name="e.legislation"/>
                            </oneOrMore>
                            <optional>
                                <ref name="e.descriptiveNote"/>
                            </optional>
                        </group>
                        <zeroOrMore>
                            <ref name="m.discursiveSet"/>
                        </zeroOrMore>
                    </choice>
                </element>
            </define>

            <define name="m.discursiveSet">
                <choice>
                    <ref name="e.p"/>
                    <ref name="e.outline"/>
                    <ref name="e.list"/>
                    <ref name="e.citation"/>
                </choice>
            </define>
        </div>

        <div a:documentation="Singular Version">
            <define name="e.placeEntry">
                <element a:id="placeEntry" name="placeEntry">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="m.entryLanguageAttributes"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <optional>
                        <attribute a:id="countryCode" name="countryCode">
                            <choice>
                                <data type="string">
                                    <param name="pattern">[A-Z]{2}</param>
                                </data>
                                <data type="string">
                                    <param name="pattern">[A-Z]{4}</param>
                                </data>
                            </choice>
                        </attribute>
                    </optional>
                    <optional>
                        <ref name="a.vocabularySource"/>
                    </optional>
                    <optional>
                        <attribute a:id="accuracy" name="accuarcy">
                            <text/>
                        </attribute>
                    </optional>
                    <optional>
                        <ref name="m.geographicalCoordinates"/>
                    </optional>
                    <text/>
                </element>
            </define>

            <define name="e.localDescription">
                <element a:id="localDescription" name="localDescription">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <ref name="a.localType"/>
                    <ref name="m.simpleDescription"/>
                </element>
            </define>
            <define name="e.legislation">
                <element a:id="legislation" name="legislation">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <ref name="m.simpleDescription"/>
                </element>
            </define>

            <define name="m.simpleDescription">
                <optional>
                    <ref name="e.term"/>
                </optional>
                <zeroOrMore>
                    <ref name="e.placeEntry"/>
                </zeroOrMore>
                <optional>
                    <ref name="m.dates"/>
                </optional>
                <optional>
                    <ref name="e.citation"/>
                </optional>
                <optional>
                    <ref name="e.descriptiveNote"/>
                </optional>
            </define>

            <define name="e.purpose">
                <element a:id="purpose" name="purpose">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <zeroOrMore>
                        <ref name="m.discursiveSet"/>
                    </zeroOrMore>
                </element>
            </define>

            <define name="e.history">
                <element a:id="history" name="history">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <optional>
                        <ref name="e.abstract"/>
                    </optional>
                    <zeroOrMore>
                        <choice>
                            <ref name="e.chronList"/>
                            <ref name="e.list"/>
                            <ref name="e.p"/>
                            <ref name="e.outline"/>
                            <ref name="e.citation"/>
                        </choice>
                    </zeroOrMore>
                </element>
            </define>

            <define name="e.abstract">
                <element a:id="abstract" name="abstract">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <ref name="m.mixedContent"/>
                </element>
            </define>
        </div>
    </div>

    <!-- Relations -->
    <div a:documentation="relations">
        <define a:id="e.relations" name="e.relations">
            <element name="relations">
                <oneOrMore>
                    <ref name="e.relation"/>
                </oneOrMore>
            </element>
        </define>

        <define name="e.relation">
            <element name="relation">
                    <attribute name="relationType">
                        <choice>
                        <value>cpf</value>
                        <value>function</value>
                        <value>resource</value>
                        </choice>
                    </attribute>
                
                <optional>
                    <ref name="a.lastDateTimeVerified"/>
                </optional>
                <optional>
                    <ref name="simpleLink"/>
                </optional>
                <oneOrMore>
                    <ref name="e.relationEntry"/>
                </oneOrMore>

                <optional>
                    <ref name="m.dates"/>
                </optional>
                <optional>
                    <ref name="e.placeEntry"/>
                </optional>
                <optional>
                    <ref name="e.descriptiveNote"/>
                </optional>
            </element>
        </define>

        <define name="e.relationEntry">
            <element a:id="relationEntry" name="relationEntry">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="m.entryLanguageAttributes"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <text/>
            </element>
        </define>
    </div>

    <!-- alternativeSet -->
    <div a:documentation="alternativeSet">        
        <define name="e.alternativeSet">
            <element a:id="alternativeSet" name="alternativeSet">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="base"/>
                </optional>
                <oneOrMore>
                    <element a:id="setComponent" name="setComponent">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <optional>
                            <ref name="lang"/>
                        </optional>
                        <optional>
                            <ref name="a.lastDateTimeVerified"/>
                        </optional>
                        <!-- Here down overlaps with m.relationBody -->
                        <optional>
                            <ref name="simpleLink"/>
                        </optional>
                        <oneOrMore>
                            <element a:id="componentEntry" name="componentEntry">
                                <optional>
                                    <ref name="id"/>
                                </optional>
                                <optional>
                                    <ref name="a.localType"/>
                                </optional>
                                <optional>
                                    <ref name="m.entryLanguageAttributes"/>
                                </optional>
                                <text/>
                            </element>
                        </oneOrMore>
                        <optional>
                            <ref name="e.descriptiveNote"/>
                        </optional>
                    </element>
                </oneOrMore>
            </element>
        </define>
    </div>

    <!-- Shared -->
    <div a:documentation="Shared">
        <div a:documentation="Dates">

            <define name="a.lastDateTimeVerified">
                <attribute a:id="lastDateTimeVerified" name="lastDateTimeVerified">
                    <ref name="m.data.standardDateTime"/>
                </attribute>
            </define>

            <define name="m.data.standardDateTime">
                <choice>
                    <data type="date"/>
                    <data type="gYear"/>
                    <data type="gYearMonth"/>
                    <data type="dateTime"/>
                </choice>
            </define>

            <define name="m.data.standardDate">
                <choice>
                    <data type="date"/>
                    <data type="gYear"/>
                    <data type="gYearMonth"/>
                </choice>
            </define>
            
            <define name="e.dateUnstructured">
                <element a:id="dateUnstructured" name="dateUnstructured">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <text/>
                </element>
            </define>
            
            <define name="e.dateSingle">
                <element a:id="dateSingle" name="dateSingle">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <ref name="m.dateSingle"/>
                </element>
            </define>

            <define name="m.dateSingle">
                <optional>
                    <attribute a:id="standardDate" name="standardDate">
                        <ref name="m.data.standardDate"/>
                    </attribute>
                </optional>
                <optional>
                    <attribute a:id="notBefore" name="notBefore">
                        <ref name="m.data.standardDate"/>
                    </attribute>
                </optional>
                <optional>
                    <attribute a:id="notAfter" name="notAfter">
                        <ref name="m.data.standardDate"/>
                    </attribute>
                </optional>
                <text/>
            </define>

            <define name="e.dateRange">
                <element a:id="dateRange" name="dateRange">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <optional>
                        <element a:id="fromDate" name="fromDate">
                            <optional>
                                <ref name="id"/>
                            </optional>
                            <optional>
                                <ref name="lang"/>
                            </optional>
                            <ref name="m.dateSingle"/>
                        </element>
                    </optional>
                    <optional>
                        <element a:id="toDate" name="toDate">
                            <optional>
                                <ref name="id"/>
                            </optional>
                            <optional>
                                <ref name="lang"/>
                            </optional>
                            <ref name="m.dateSingle"/>
                        </element>
                    </optional>
                </element>
            </define>

            <define name="e.dateSet">
                <element a:id="dateSet" name="dateSet">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <choice>
                        <ref name="e.dateSingle"/>
                        <ref name="e.dateRange"/>
                    </choice>
                    <oneOrMore>
                        <choice>
                            <ref name="e.dateSingle"/>
                            <ref name="e.dateRange"/>
                        </choice>
                    </oneOrMore>
                </element>
            </define>

            <define name="m.dates">
                <choice>
                    <ref name="e.dateUnstructured"/>
                    <ref name="e.dateSingle"/>
                    <ref name="e.dateRange"/>
                    <ref name="e.dateSet"/>
                </choice>
            </define>

        </div>

        <div a:documentation="Language">

            <define name="e.language">
                <element a:id="language" name="language">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <attribute a:id="languageCode" name="languageCode">
                        <data type="string">
                            <param name="pattern">[a-z]{3}</param>
                        </data>
                    </attribute>
                    <text/>
                </element>
            </define>

            <define name="e.script">
                <element a:id="script" name="script">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <ref name="a.scriptCode"/>
                    <text/>
                </element>
            </define>

            <define name="a.scriptCode">
                <attribute a:id="scriptCode" name="scriptCode">
                    <data type="string">
                        <param name="pattern">[A-Z][a-z]{3}</param>
                    </data>
                </attribute>
            </define>


            <define name="a.transliteration">
                <attribute a:id="transliteration" name="transliteration">
                    <data type="NMTOKEN"/>
                </attribute>
            </define>

            <define name="m.entryLanguageAttributes">
                <optional>
                    <ref name="a.scriptCode"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="a.transliteration"/>
                </optional>
            </define>

        </div>

        <define name="m.data.standardRepository">
            <data type="token">
                <a:documentation>This pattern represents the character pattern requirements of ISIL
                    (ISO 15511). Values that conform to the pattern are not, strictly speaking,
                    conformant to ISIL, as all repository codes must be registered with a national
                    authority and the national authority must be registered wth the official ISIL
                    registering authority, the Royal Library of Belgium
                    (http://biblstandard.dk/isil/).</a:documentation>
                <param name="pattern"
                    >(([A-Z]{2})|([a-zA-Z]{1})|([a-zA-Z]{3,4}))(-[a-zA-Z0-9:/\-]{1,11})</param>
            </data>
        </define>

        <define name="e.term">
            <element a:id="term" name="term">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="m.entryLanguageAttributes"/>
                </optional>
                <optional>
                    <ref name="a.lastDateTimeVerified"/>
                </optional>
                <optional>
                    <ref name="a.vocabularySource"/>
                </optional>
                <text/>
            </element>
        </define>

        <define name="e.descriptiveNote">
            <element a:id="descriptiveNote" name="descriptiveNote">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <oneOrMore>
                    <ref name="e.p"/>
                </oneOrMore>
            </element>
        </define>

        <define name="e.citation">
            <element a:id="citation" name="citation">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="simpleLink"/>
                </optional>
                <optional>
                    <ref name="a.lastDateTimeVerified"/>
                </optional>
                <ref name="m.mixedContent"/>
            </element>
        </define>

        <define name="m.id">
            <optional>
                <ref name="a.localType"/>
            </optional>
            <text/>
        </define>

        <define name="e.p">
            <element a:id="p" name="p">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <ref name="m.mixedContent"/>
            </element>
        </define>

        <define name="m.mixedContent">
            <zeroOrMore>
                <choice>
                    <text/>
                    <ref name="e.span"/>
                </choice>
            </zeroOrMore>
        </define>

        <define name="e.chronList">
            <element a:id="chronList" name="chronList">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <oneOrMore>
                    <element a:id="chronItem" name="chronItem">
                        <optional>
                            <ref name="id"/>
                        </optional>
                        <optional>
                            <ref name="lang"/>
                        </optional>
                        <optional>
                            <ref name="a.localType"/>
                        </optional>
                        <choice>
                            <ref name="e.dateSingle"/>
                            <ref name="e.dateRange"/>
                        </choice>
                        <optional>
                            <ref name="e.placeEntry"/>
                        </optional>
                        <element a:id="event" name="event">
                            <optional>
                                <ref name="id"/>
                            </optional>
                            <optional>
                                <ref name="lang"/>
                            </optional>
                            <optional>
                                <ref name="a.localType"/>
                            </optional>
                            <text/>
                        </element>
                    </element>
                </oneOrMore>
            </element>
        </define>

        <define name="e.list">
            <element a:id="list" name="list">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <oneOrMore>
                    <ref name="e.item"/>
                </oneOrMore>
            </element>
        </define>

        <define name="e.item">
            <element a:id="item" name="item">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <ref name="m.mixedContent"/>
            </element>
        </define>

        <define name="e.outline">
            <element a:id="outline" name="outline">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <oneOrMore>
                    <ref name="e.level"/>
                </oneOrMore>
            </element>
        </define>

        <define name="e.level">
            <element a:id="level" name="level">
                <optional>
                    <ref name="id"/>
                </optional>
                <optional>
                    <ref name="lang"/>
                </optional>
                <optional>
                    <ref name="a.localType"/>
                </optional>
                <ref name="e.item"/>
                <zeroOrMore>
                    <ref name="e.level"/>
                </zeroOrMore>
            </element>
        </define>

        <define name="e.span">
            <optional>
                <element a:id="span" name="span">
                    <optional>
                        <ref name="id"/>
                    </optional>
                    <optional>
                        <ref name="lang"/>
                    </optional>
                    <optional>
                        <ref name="a.localType"/>
                    </optional>
                    <optional>
                        <ref name="a.style"/>
                    </optional>
                    <text/>
                </element>
            </optional>
        </define>

        <define name="a.localType">
            <attribute a:id="localType" name="localType">
                <data type="anyURI"/>
            </attribute>
        </define>

        <define name="a.vocabularySource">
            <attribute a:id="vocabularySource" name="vocabularySource">
                <data type="anyURI"/>
            </attribute>
        </define>

        <define name="a.style">
            <attribute a:id="style" name="style">
                <text/>
            </attribute>
        </define>

        <define name="m.geographicalCoordinates">
            <attribute a:id="longitude" name="longitude">
                <data type="NMTOKEN"/>
            </attribute>
            <attribute a:id="latitude" name="latitude">
                <data type="NMTOKEN"/>
            </attribute>
            <optional>
                <attribute a:id="altitude" name="altitude">
                    <data type="NMTOKEN"/>
                </attribute>
            </optional>
        </define>

        <!-- XML general attributes -->
        <div a:documentation="XML Special Attributes">

            <define name="lang" ns="http://www.w3.org/XML/1998/namespace">
                <attribute a:id="xmlLang" name="xml:lang">
                    <choice>
                        <data type="language"/>
                        <value/>
                    </choice>
                </attribute>
            </define>

            <define name="base" ns="http://www.w3.org/XML/1998/namespace">
                <attribute a:id="xmlBase" name="xml:base">
                    <data type="anyURI"/>
                </attribute>
            </define>

            <define name="id" ns="http://www.w3.org/XML/1998/namespace">
                <attribute a:id="xmlID" name="xml:id">
                    <data type="NCName">
                        <!-- Because of restrictions in Relax NG, the expression of this attribute is NCName.
This is not strictly conformant to the xml:id specification, though necessary in order for
to validate. The XML Schema version of this attribute should be defined as ID -->
                    </data>
                </attribute>
            </define>
        </div>

        <div a:documentation="XLINK">
            <define name="simpleLink" xmlns:xlink="http://www.w3.org/1999/xlink">
                <attribute a:defaultValue="simple" a:id="xlinkType" name="xlink:type">
                    <value>simple</value>
                </attribute>
                <optional>
                    <ref name="href"/>
                </optional>
                <optional>
                    <ref name="role"/>
                </optional>
                <optional>
                    <ref name="arcrole"/>
                </optional>
                <optional>
                    <ref name="title"/>
                </optional>
                <optional>
                    <ref name="show"/>
                </optional>
                <optional>
                    <ref name="actuate"/>
                </optional>
            </define>
            <define name="href" xmlns:xlink="http://www.w3.org/1999/xlink">
                <attribute a:id="xlinkHref" name="xlink:href">
                    <data type="anyURI"/>
                </attribute>
            </define>
            <define name="role" xmlns:xlink="http://www.w3.org/1999/xlink">
                <attribute a:id="xlinkRole" name="xlink:role">
                    <data type="anyURI"/>
                </attribute>
            </define>
            <define name="arcrole" xmlns:xlink="http://www.w3.org/1999/xlink">
                <attribute a:id="xlinkArcrole" name="xlink:arcrole">
                    <data type="anyURI"/>
                </attribute>
            </define>
            <define name="title" xmlns:xlink="http://www.w3.org/1999/xlink">
                <attribute a:id="xlinkTitle" name="xlink:title"/>
            </define>
            <define name="show" xmlns:xlink="http://www.w3.org/1999/xlink">
                <attribute a:id="xlinkShow" name="xlink:show">
                    <choice>
                        <value>new</value>
                        <value>replace</value>
                        <value>embed</value>
                        <value>other</value>
                        <value>none</value>
                    </choice>
                </attribute>
            </define>
            <define name="actuate" xmlns:xlink="http://www.w3.org/1999/xlink">
                <attribute a:id="xlinkActuate" name="xlink:actuate">
                    <choice>
                        <value>onLoad</value>
                        <value>onRequest</value>
                        <value>other</value>
                        <value>none</value>
                    </choice>
                </attribute>
            </define>

        </div>

    </div>


</grammar>