fDecl

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C Elements

<fDecl>

<fDecl> (feature declaration) declares a single feature, specifying its name, organization, range of allowed values, and optionally its default value. 18.11 Feature System Declaration

Modul

iso-fs — 18 Feature Structures

Attribute

name

indicates the name of the feature being declared; matches the name attribute of <f> elements in the text.

Zustand	Obligatorisch
Datentyp	<rng:ref name="data.name"/> data.name
Werte	any string of characters

optional

indicates whether or not the value of this feature may be present.

Zustand	Optional
Datentyp	<rng:data type="boolean"/> xsd:boolean
Anmerkung	If a feature is marked as optional, it is possible for it to be omitted from a feature structure. If an obligatory feature is omitted, then it is understood to have a default value, either explicitly declared, or, if no default is supplied, the special value any. If an optional feature is omitted, then it is understood to be missing and any possible value (including the default) is ignored.

Verwendet von

fsDecl

Kann enthalten

iso-fs: fDescr vDefault vRange

Deklaration


<rng:element name="fDecl">
<rng:ref name="att.global.attributes"/>
<rng:attribute name="name">
 <rng:ref name="data.name"/>
</rng:attribute>
<rng:optional>
 <rng:attribute name="optional" a:defaultValue="true">
  <rng:data type="boolean"/>
 </rng:attribute>
</rng:optional>
<rng:group>
 <rng:optional>
  <rng:ref name="fDescr"/>
 </rng:optional>
 <rng:ref name="vRange"/>
 <rng:optional>
  <rng:ref name="vDefault"/>
 </rng:optional>
</rng:group>
</rng:element>

element fDecl
{
   att.global.attributes,
   attribute name { data.name },
   attribute optional { xsd:boolean }?,
   ( fDescr?, vRange, vDefault? )
}

P5: Guidelines for Electronic Text Encoding and Interchange

<fDecl>