<alt>

<alt> (alternation) identifies an alternation or a set of choices among elements or passages. 16.8 Alternation
Modullinking — 16 Linking, Segmentation, and Alignment
Attribute att.pointing (@type, @evaluate)
targetsspecifies the identifiers of the alternative elements or passages.
Zustand Obligatorisch
Datentyp 2–∞ Vorkommen von 

<rng:ref name="data.pointer"/>
data.pointer
Durch Leerzeichen getrennt
Werte Each value specified must be the same as that specified as value for an xml:id attribute for some other element in the current document.
modestates whether the alternations gathered in this collection are exclusive or inclusive.
Zustand Empfohlen
Gültige Werte:
excl
(exclusive) indicates that the alternation is exclusive, i.e. that at most one of the alternatives occurs.
incl
(inclusive) indicates that the alternation is not exclusive, i.e. that one or more of the alternatives occur.
weightsIf mode is excl, each weight states the probability that the corresponding alternative occurs. If mode is incl each weight states the probability that the corresponding alternative occurs given that at least one of the other alternatives occurs.
Zustand Optional
Datentyp 2–∞ Vorkommen von 

<rng:ref name="data.probability"/>
data.probability
Durch Leerzeichen getrennt
Werte a whitespace-separated list of probability values in the range from 0 to 1.
Verwendet von
altGrp model.global.meta
Kann enthaltenLeeres Element
Deklaration

<rng:element name="alt">
<rng:ref name="att.global.attributes"/>
<rng:ref name="att.pointing.attributes"/>
<rng:attribute name="targets">
 <rng:list>
  <rng:ref name="data.pointer"/>
  <rng:oneOrMore>
   <rng:ref name="data.pointer"/>
  </rng:oneOrMore>
 </rng:list>
</rng:attribute>
<rng:optional>
 <rng:attribute name="mode">
  <rng:choice>
   <rng:value>excl</rng:value>
   <rng:value>incl</rng:value>
  </rng:choice>
 </rng:attribute>
</rng:optional>
<rng:optional>
 <rng:attribute name="weights">
  <rng:list>
   <rng:ref name="data.probability"/>
   <rng:oneOrMore>
    <rng:ref name="data.probability"/>
   </rng:oneOrMore>
  </rng:list>
 </rng:attribute>
</rng:optional>
<rng:empty/>
</rng:element>
element alt
{
   att.global.attributes,
   att.pointing.attributes,
   attribute targets { list { data.pointer, data.pointer+ } },
   attribute mode { "excl" | "incl" }?,
   attribute weights { list { data.probability, data.probability+ } }?,
   empty
}
Beispiel
<alt mode="excl" targets="#we.fun #we.sun" weights="0.5 0.5"/>