public virtual string ToString(Func <IHierarchical <T>, string> formatter, bool convertToSingleLine = false)
{
var sbr = new StringBuilder();
sbr.AppendLine(convertToSingleLine
? formatter(this).Replace("\r", @"\r").Replace("\n", @"\n")
: formatter(this));
var sb = new StringBuilder();
foreach (var node in Descendants)
{
sb.Append(convertToSingleLine
? formatter(node).Replace("\r", @"\r").Replace("\n", @"\n")
: formatter(node));
sb.Insert(0, node == node.Parent.Children.Last() ? "└─" : "├─");
for (int i = 0; i < node.Ancestors.Count() - (Ancestors?.Count() ?? 0) - 1; i++)
{
sb.Insert(0,
node.Ancestors.ElementAt(i) == node.Ancestors.ElementAt(i + 1).Children.Last()
? " "
: "│ ");
}
sbr.AppendLine(sb.ToString());
sb.Clear();
}
return(sbr.ToString());
}