<f>

<f> (feature) represents a feature value specification, that is, the association of a name with a value of any of several different types. 18.2 Elementary Feature Structures and the Binary Feature Value
組件iso-fs — 18 Feature Structures
屬性
nameprovides a name for the feature.
狀態 必備的
資料類型 
data.name
值 Any name.
fVal (feature value) references any element which can be used to represent the value of a feature.
狀態 非必備的
資料類型 
data.pointer
值 the identifier of an element representing a feature value
註
If this attribute is supplied as well as content, the value referenced is to be unified with that contained.
屬於bicond cond fLib fs if
可包含
iso-fs: binary default fs numeric string symbol vAlt vColl vLabel vMerge vNot
宣告
element f
{
   att.global.attributes,
   attribute name { data.name },
   attribute fVal { data.pointer }?,
   model.featureVal*
}
例子
<f name="gender">
 <symbol value="feminine"/>
</f>
註
If the element is empty then a value must be supplied for the fVal attribute.