/*
* Compute an FST which recognizes the disjunction of the sub-FSTs.
*
* The returned automaton will usually have multiple final states, but not have (pure) epsilon transitions.
*
* @return The new FST representing the disjunction of the inner FSTs
* */
public override FST GetFST()
{
if (_Alternatives.Count == 0)
{
throw new Exception("Internal error");
}
FST result = _Alternatives[0].GetFST();
if (_Alternatives.Count > 1)
{
List <FST> alternatives = new List <FST>();
for (int i = 1; i < _Alternatives.Count; ++i)
{
alternatives.Add(_Alternatives[i].GetFST());
}
result.Disjunct(alternatives);
}
return(result);
}