private static void MergeIdenticalTransitions(ArcList arcs, List <Arc> identicalWords)
{
List <List <Arc> > list = null;
Arc arc = arcs.First;
foreach (Arc arc2 in arcs)
{
if (Arc.CompareContent(arc, arc2) != 0)
{
if (identicalWords.Count >= 2)
{
identicalWords.Sort(Arc.CompareIdenticalTransitions);
if (list == null)
{
list = new List <List <Arc> >();
}
list.Add(new List <Arc>(identicalWords));
}
identicalWords.Clear();
}
arc = arc2;
identicalWords.Add(arc2);
}
if (identicalWords.Count >= 2)
{
MergeIdenticalTransitions(identicalWords);
}
identicalWords.Clear();
if (list != null)
{
foreach (List <Arc> item in list)
{
MergeIdenticalTransitions(item);
}
}
}
private void MergeDuplicateOutputTransitions(ArcList arcs, Stack <State> mergeStates)
{
List <Arc> list = null;
Arc arc = null;
bool flag = false;
foreach (Arc arc5 in arcs)
{
bool flag2 = arc5.End == null || !arc5.End.InArcs.CountIsOne;
if (arc != null && Arc.CompareContent(arc5, arc) == 0)
{
if (!flag2)
{
if (list == null)
{
list = new List <Arc>();
}
if (!flag)
{
list.Add(arc);
flag = true;
}
list.Add(arc5);
}
}
else
{
arc = (flag2 ? null : arc5);
flag = false;
}
}
if (list != null)
{
list.Sort(Arc.CompareForDuplicateOutputTransitions);
arc = null;
Arc arc3 = null;
State state = null;
bool flag3 = false;
foreach (Arc item in list)
{
if (arc == null || Arc.CompareContent(item, arc) != 0)
{
arc = item;
if (flag3)
{
AddToMergeStateList(mergeStates, state);
}
arc3 = null;
state = null;
flag3 = false;
}
Arc arc4 = item;
State end = arc4.End;
if (end != end.Rule._firstState && MoveSemanticTagRight(arc4))
{
if (arc3 != null)
{
if (!flag3)
{
foreach (Arc outArc in state.OutArcs)
{
outArc.Weight *= arc3.Weight;
}
flag3 = true;
}
foreach (Arc outArc2 in end.OutArcs)
{
outArc2.Weight *= arc4.Weight;
}
arc4.Weight += arc3.Weight;
Arc.CopyTags(arc3, arc4, Direction.Right);
DeleteTransition(arc3);
MoveOutputTransitionsAndDeleteState(state, end);
}
arc3 = arc4;
state = end;
}
}
if (flag3)
{
AddToMergeStateList(mergeStates, state);
}
}
}
