Add a Node collection object to Core

CodeStatisticsCore/CodeStatisticsCore.csproj

@@ -41,6 +41,7 @@
     <Compile Include="Collections\CharacterRangeSet.cs" />
     <Compile Include="Collections\CounterDictionary.cs" />
     <Compile Include="Collections\EnumDictionary.cs" />
+    <Compile Include="Collections\Node.cs" />
     <Compile Include="Collections\TopElementList.cs" />
     <Compile Include="Handling\Files\AbstractFileHandler.cs" />
     <Compile Include="Handling\Files\AbstractLanguageFileHandler.cs" />

CodeStatisticsCore/Collections/Node.cs

@@ -0,0 +1,62 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace CodeStatisticsCore.Collections{
+    public sealed class Node{
+        public string Text{
+            get{
+                return text;
+            }
+        }
+
+        public IEnumerable<Node> Children{
+            get{
+                return children ?? Enumerable.Empty<Node>();
+            }
+        }
+
+        private readonly string text;
+        private List<Node> children;
+
+        public Node(string text){
+            this.text = text;
+        }
+
+        private void PrepareChildList(){
+            if (children == null){
+                children = new List<Node>();
+            }
+        }
+
+        public void Add(Node node){
+            PrepareChildList();
+            children.Add(node);
+        }
+
+        public void Add(string nodeText){
+            PrepareChildList();
+            children.Add(new Node(nodeText));
+        }
+
+        public void AddRange(IEnumerable<Node> nodes){
+            PrepareChildList();
+            children.AddRange(nodes);
+        }
+
+        public void AddRange(IEnumerable<string> nodeTexts){
+            PrepareChildList();
+            children.AddRange(nodeTexts.Select(text => new Node(text)));
+        }
+
+        public void AddRangeAsStrings(IEnumerable<object> objects){
+            PrepareChildList();
+            children.AddRange(objects.Select(obj => new Node(obj.ToString())));
+        }
+
+        public void AddRangeAsStrings(IEnumerable objects){
+            PrepareChildList();
+            children.AddRange(objects.Cast<object>().Select(obj => new Node(obj.ToString())));
+        }
+    }
+}