<fsDecl>

<fsDecl> (feature structure declaration) declares one type of feature structure. [18.11 Feature System Declaration]
組件iso-fs — 18 Feature Structures
屬性att.global (@xml:id, @n, @xml:lang, @rend, @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))
typegives a name for the type of feature structure being declared.
狀態 必備的
資料類型 

<rng:ref name="data.enumerated"/>
data.enumerated
值 any convenient string of characters.
baseTypesgives the name of one or more typed feature structures from which this type inherits feature specifications and constraints; if this type includes a feature specification with the same name as that of any of those specified by this attribute, or if more than one specification of the same name is inherited, then the set of possible values is defined by unification. Similarly, the set of constraints applicable is derived by combining those specified explicitly within this element with those implied by the baseTypes attribute. When no baseTypes attribute is specified, no feature specification or constraint is inherited.
狀態 非必備的
資料類型 1–∞ 次可出現: 

<rng:ref name="data.name"/>
data.name
以空白鍵隔開
值 one or more names as defined by the W3C XML Specification
屬於
可包含在於
iso-fs: fsdDecl
可包含
iso-fs: fDecl fsConstraints fsDescr
宣告

<rng:element name="fsDecl">
 <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:attribute name="type">
  <rng:ref name="data.enumerated"/>
 </rng:attribute>
 <rng:optional>
  <rng:attribute name="baseTypes">
   <rng:list>
    <rng:ref name="data.name"/>
    <rng:zeroOrMore>
     <rng:ref name="data.name"/>
    </rng:zeroOrMore>
   </rng:list>
  </rng:attribute>
 </rng:optional>
 <rng:group>
  <rng:optional>
   <rng:ref name="fsDescr"/>
  </rng:optional>
  <rng:oneOrMore>
   <rng:ref name="fDecl"/>
  </rng:oneOrMore>
  <rng:optional>
   <rng:ref name="fsConstraints"/>
  </rng:optional>
 </rng:group>
</rng:element>
element fsDecl
{
   att.global.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   attribute type { data.enumerated },
   attribute baseTypes { list { data.name, data.name* } }?,
   ( fsDescr?, fDecl+, fsConstraints? )
}
例子
<fsDecl type="SomeName">
 <fsDescr>Describes what this type of fs represents</fsDescr>
 <fDecl name="featureOne">
<!-- The declaration for featureOne -->
  <vRange>
<!-- the range of possible values for this feature -->
  </vRange>
 </fDecl>
 <fDecl name="featureTwo">
<!-- The declaration for featureTwo -->
  <vRange>
<!-- the range of possible values for this feature -->
  </vRange>
 </fDecl>
 <fsConstraints>
<!-- Any additional constraints for the feature structure -->
 </fsConstraints>
</fsDecl>