iNode

<iNode>

<iNode> (intermediate (or internal) node) represents an intermediate (or internal) node of a tree. 19.2 Trees

Module

Attributes

In addition to global attributes

value

provides the value of an intermediate node, which is a feature structure or other analytic element.

Status	Required when applicable
Datatype	<rng:ref name="data.pointer"/> data.pointer
Values	A valid identifier of a feature structure or other analytic element.

children

provides a list of identifiers of the elements which are the children of the intermediate node.

Status	Required
Datatype	1–∞ occurrences of <rng:ref name="data.pointer"/> data.pointer separated by whitespace
Values	A list of identifiers.

parent

provides the identifier of the element which is the parent of this node.

Status	Optional
Datatype	<rng:ref name="data.pointer"/> data.pointer
Values	The identifier of the parent node.

ord

(ordered) indicates whether or not the internal node is ordered.

Status	Optional
Datatype	<rng:ref name="data.xTruthValue"/> data.xTruthValue
Note	The value true indicates that the children of the intermediate node are ordered, whereas false indicates the are unordered. Use if and only if ord is specified as partial on the tree element and the intermediate node has more than one child.

provides an identifier of the element which this node follows.

Status	Required when applicable
Datatype	<rng:ref name="data.pointer"/> data.pointer
Values	The identifier of another intermediate node or leaf of the tree.
Note	If the tree is unordered or partially ordered, this attribute has the property of fixing the relative order of the intermediate node and the element which is the value of the attribute.

outDegree

gives the out degree of an intermediate node, the number of its children.

Status	Optional
Datatype	<rng:ref name="data.count"/> data.count
Values	A nonnegative integer.
Note	The in degree of an intermediate node is always 1.

Declaration

<rng:element name="iNode">
 <rng:ref name="att.global.attributes"/>
 <rng:optional>
  <rng:attribute name="value">
   <rng:ref name="data.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:attribute name="children">
  <rng:list>
   <rng:oneOrMore>
    <rng:ref name="data.pointer"/>
   </rng:oneOrMore>
  </rng:list>
 </rng:attribute>
 <rng:optional>
  <rng:attribute name="parent">
   <rng:ref name="data.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="ord">
   <rng:ref name="data.xTruthValue"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="follow">
   <rng:ref name="data.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="outDegree">
   <rng:ref name="data.count"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:ref name="label"/>
 </rng:optional>
</rng:element>

element iNode
{
   att.global.attributes,
   attribute value { data.pointer }?,
   attribute children { list { data.pointer+ } },
   attribute parent { data.pointer }?,
   attribute ord { data.xTruthValue }?,
   attribute follow { data.pointer }?,
   attribute outDegree { data.count }?,
   label?
}

Example

Contained by

tree

May contain

core: label

P5: Guidelines for Electronic Text Encoding and Interchange

<iNode>