<classRef>

<classRef> points to the specification for an attribute or model class which is to be included in a schema [22.4.6 Element Classes]
組件tagdocs — Documentation Elements
屬性att.global (@xml:id, @n, @xml:lang, @rend, @style, @rendition, @xml:base, @xml:space) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change)) att.repeatable (@allowText, @context, @minOccurs, @maxOccurs) att.readFrom (@source)
keythe identifier used for the required class within the source indicated.
狀態 必備的
資料類型 

<rng:ref name="data.xmlName"/>
data.xmlName
expandindicates how references to this class within a content model should be interpreted.
狀態 非必備的
合法的值是:
alternate
any one member of the class may appear
sequence
a single occurrence of all members of the class may appear in sequence
sequenceOptional
a single occurrence of one or more members of the class may appear in sequence
sequenceOptionalRepeatable
one or more occurrences of one or more members of the class may appear in sequence.
sequenceRepeatable
one or more occurrences of all members of the class may appear in sequence
俱乐部会员
model.contentPart model.oddRef
可包含在於
tagdocs: alternate content schemaSpec sequence specGrp
可包含空白元素
宣告

<rng:element name="classRef">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.repeatable.attributes"/>
 <rng:ref name="att.readFrom.attributes"/>
 <rng:attribute name="key">
  <rng:ref name="data.xmlName"/>
 </rng:attribute>
 <rng:optional>
  <rng:attribute name="expand">
   <rng:choice>
    <rng:value>alternate</rng:value>
    <rng:value>sequence</rng:value>
    <rng:value>sequenceOptional</rng:value>
    <rng:value>sequenceOptionalRepeatable</rng:value>
    <rng:value>sequenceRepeatable</rng:value>
   </rng:choice>
  </rng:attribute>
 </rng:optional>
 <rng:empty/>
</rng:element>
element classRef
{
   att.global.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.repeatable.attributes,
   att.readFrom.attributes,
   attribute key { data.xmlName },
   attribute expand
   {
      "alternate"
    | "sequence"
    | "sequenceOptional"
    | "sequenceOptionalRepeatable"
    | "sequenceRepeatable"
   }?,
   empty
}
例子
<schemaSpec ident="myTEIe" start="TEI">
 <moduleRef key="tei"/>
 <moduleRef
   key="core"
   include="abbr add core addrLine address author bibl biblScope choice cit corr date del desc divGen editor emph expan foreign gap gloss graphic head hi index item l label lb lg list listBibl mentioned milestone name note num orig p pb ptr pubPlace publisher q ref reg relatedItem resp respStmt rs sic soCalled sp speaker stage teiCorpus term time title unclear"/>
 <moduleRef
   key="header"
   include="authority availability catRef category change classCode classDecl creation distributor edition editionStmt editorialDecl encodingDesc extent fileDesc funder idno keywords langUsage language licence notesStmt principal profileDesc projectDesc publicationStmt refsDecl revisionDesc samplingDecl seriesStmt sourceDesc sponsor taxonomy teiHeader textClass titleStmt"/>
 <moduleRef
   key="textstructure"
   include="TEI argument back body byline closer dateline div docAuthor docDate docEdition docImprint docTitle epigraph front group opener postscript salute signed text titlePage titlePart trailer"/>
 <classRef key="att.global.facs"/>
</schemaSpec>