private bool GetElement(TreeNode <string> treeEl, PatternElement patternEl, out object data)
{
data = string.Empty;
if (treeEl.IsRoot)
{
return(false);
}
if (treeEl.Level <= patternEl.Level)
{
var requiredElement = treeEl.Parent.FindTreeNode(p =>
p.Data == patternEl.FieldName &&
p.Level == patternEl.Level &&
p.Parent.NodeName == patternEl.ParentName);
data = requiredElement != null?GetElementData(requiredElement) : null;
return(data != null);
}
if (treeEl.Level > patternEl.Level)
{
var upperNode = LevelUp(treeEl, treeEl.Level - patternEl.Level);
var requiredElement =
upperNode.Parent.FindTreeNode(p =>
p.Data == patternEl.FieldName &&
p.Level == patternEl.Level &&
p.Parent.NodeName == patternEl.ParentName);
data = requiredElement != null?GetElementData(requiredElement) : null;
return(data != null);
}
return(true);
}
public bool GetAction(
NodeType type,
TreeNode <string> treeEl,
PatternElement patternEl,
out object data)
{
switch (type)
{
case NodeType.Field:
return(GetElement(treeEl, patternEl, out data));
case NodeType.Array:
return(GetInnerArray(treeEl, patternEl, out data));
default:
throw new ArgumentOutOfRangeException(nameof(type), type, null);
}
}
private bool GetInnerArray(TreeNode <string> treeEl, PatternElement patternEl, out object data)
{
data = null;
var result = new List <string>();
var innerElements = treeEl.Parent.FindTreeNodes(p =>
p.Data == patternEl.FieldName &&
p.Level == patternEl.Level - 1 &&
p.Parent.NodeName == patternEl.ParentName);
foreach (var element in innerElements)
{
var elData = GetElementData(element);
result.Add(elData);
}
data = result.ToArray();
return(true);
}