private XElement Map(MapState mapState, Loop loop)
{
var xml = new XElement(loop.Id);
string previousSegmentId = null;
var loopState = new MapState.LoopState(loop);
mapState.LoopStates.Push(loopState);
while (mapState.SegmentIndex < mapState.Segments.Count)
{
EdiSegment segment = mapState.Segments[mapState.SegmentIndex];
if (loopState.VisitedSegmentIds.Contains(segment.Id))
{
break;
}
Node mapping = loop.FindMatchingNode(segment);
if (mapping == null && SegmentWasUnvisitedInOuterLoops(segment, mapState))
{
break;
}
if (mapping is Loop)
{
xml.Add(Map(mapState, (Loop)mapping));
}
else
{
xml.Add(MapSegment(segment, (Segment)mapping));
mapState.SegmentIndex++;
}
if (previousSegmentId == null)
{
if (loop != _root)
{
loopState.VisitedSegmentIds.Add(segment.Id);
}
}
else if (previousSegmentId != segment.Id)
{
loopState.VisitedSegmentIds.Add(previousSegmentId);
}
previousSegmentId = segment.Id;
}
mapState.LoopStates.Pop();
return(xml);
}
private XElement Map(MapState mapState, Loop loop)
{
var xml = new XElement(loop.Id);
string previousSegmentId = null;
var loopState = new MapState.LoopState(loop);
mapState.LoopStates.Push(loopState);
while (mapState.SegmentIndex < mapState.Segments.Count)
{
EdiSegment segment = mapState.Segments[mapState.SegmentIndex];
if (loopState.VisitedSegmentIds.Contains(segment.Id))
break;
Node mapping = loop.FindMatchingNode(segment);
if (mapping == null && SegmentWasUnvisitedInOuterLoops(segment, mapState))
break;
if (mapping is Loop)
xml.Add(Map(mapState, (Loop) mapping));
else
{
xml.Add(MapSegment(segment, (Segment) mapping));
mapState.SegmentIndex++;
}
if (previousSegmentId == null)
{
if (loop != _root)
loopState.VisitedSegmentIds.Add(segment.Id);
}
else if (previousSegmentId != segment.Id)
loopState.VisitedSegmentIds.Add(previousSegmentId);
previousSegmentId = segment.Id;
}
mapState.LoopStates.Pop();
return xml;
}
