TEI element root (root node)

<root>

<root> (root node) represents the root node of a tree. [19.2 Trees]

Module

nets — Graphs, Networks, and Trees

Attributes

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))

value value¶

provides the value of the root, which is a feature structure or other analytic element.

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

children children¶

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

Status	Required
Datatype	1–∞ occurrences of <rng:ref name="data.pointer"/> data.pointer separated by whitespace
Values	A list of valid identifiers.
Note	If the root has no children (i.e., the tree is ‘trivial’), then the children attribute must be omitted. For technical reasons, it cannot be specified as <root children=''>.

ord ord¶

(ordered) indicates whether or not the root is ordered.

Status

Optional

Datatype


<rng:ref name="data.xTruthValue"/>

data.xTruthValue

Note

The value true indicates that the children of the root are ordered, whereas false indicates the are unordered.

Use if and only if ord is specified as partial on the tree element and the root has more than one child.

outDegree outDegree¶

gives the out degree of the root, the number of its children.

Status	Optional
Datatype	<rng:ref name="data.count"/> data.count
Note	The in degree of the root is always 0.

Member of

Contained by

nets: tree

May contain

core: label

Declaration


<rng:element name="root">
 <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: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="ord">
   <rng:ref name="data.xTruthValue"/>
  </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 root
{
   att.global.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   attribute value { data.pointer }?,
   attribute children { list { data.pointer+ } },
   attribute ord { data.xTruthValue }?,
   attribute outDegree { data.count }?,
   label?
}

Example

Show all

P5: Guidelines for Electronic Text Encoding and Interchange

<root>