--- a/Implab/Formats/ScannerContext.cs	Tue Mar 22 18:58:40 2016 +0300
+++ b/Implab/Formats/ScannerContext.cs	Wed Mar 23 01:42:00 2016 +0300
@@ -1,11 +1,17 @@
-using System;
-
-namespace Implab.Formats {
+namespace Implab.Formats {
+    /// <summary>
+    /// Represents a scanner configuration usefull to recongnize token, based on the DFA.
+    /// </summary>
     public class ScannerContext<TTag> {
+
         public int[,] Dfa { get; private set; }
+
         public bool[] Final { get; private set; }
+
         public TTag[][] Tags { get; private set; }
+
         public int State { get; private set; }
+
         public int[] Alphabet { get; private set; }
 
         public ScannerContext(int[,] dfa, bool[] final, TTag[][] tags, int state, int[] alphabet) {