Added helper class to generate text.

src/Generator/Utils/TextGenerator.cs

@@ -0,0 +1,97 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Cxxi
+{
+    public class TextGenerator
+    {
+        private const uint DefaultIndent = 4;
+        private const uint MaxIndent = 80;
+
+        private readonly StringBuilder sb;
+        private readonly Stack<uint> currentIndent;
+        private bool isStartOfLine;
+        private bool needsNewLine;
+
+        public TextGenerator()
+        {
+            sb = new StringBuilder();
+            currentIndent = new Stack<uint>();
+            isStartOfLine = false;
+        }
+
+        public void Write(string msg, params object[] args)
+        {
+            if (isStartOfLine)
+                sb.Append(new string(' ', (int)currentIndent.Sum(u => u)));
+
+            if (args.Length > 0)
+                msg = string.Format(msg, args);
+
+            if (msg.Length > 0)
+                isStartOfLine = false;
+
+            sb.Append(msg);
+        }
+
+        public void WriteLine(string msg, params object[] args)
+        {
+            Write(msg, args);
+            NewLine();
+        }
+
+        public void WriteLineIndent(string msg, params object[] args)
+        {
+            PushIndent();
+            WriteLine(msg, args);
+            PopIndent();
+        }
+
+        public void NewLine()
+        {
+            sb.AppendLine(string.Empty);
+            isStartOfLine = true;
+        }
+
+        public void NewLineIfNeeded()
+        {
+            if (!needsNewLine) return;
+
+            NewLine();
+            needsNewLine = false;
+        }
+
+        public void NeedNewLine()
+        {
+            needsNewLine = true;
+        }
+
+        public void PushIndent(uint indent = DefaultIndent)
+        {
+            currentIndent.Push(indent);
+        }
+
+        public void PopIndent()
+        {
+            currentIndent.Pop();
+        }
+
+        public void WriteStartBraceIndent()
+        {
+            WriteLine("{");
+            PushIndent();
+        }
+
+        public void WriteCloseBraceIndent()
+        {
+            PopIndent();
+            WriteLine("}");
+        }
+
+        public override string ToString()
+        {
+            return sb.ToString();
+        }
+    }
+}