From ec1296abb4cfd56041aff2a77002985570478678 Mon Sep 17 00:00:00 2001
From: Clinton <csheppard@mvbalaw.com>
Date: Mon, 20 Jun 2016 16:38:43 -0500
Subject: [PATCH] another RegexFromSamples example

---
 src/Scratch/RegexFromSamples/Demo.cs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/Scratch/RegexFromSamples/Demo.cs b/src/Scratch/RegexFromSamples/Demo.cs
index b3ec0a1..42383b5 100644
--- a/src/Scratch/RegexFromSamples/Demo.cs
+++ b/src/Scratch/RegexFromSamples/Demo.cs
@@ -64,10 +64,20 @@ public void Given_Sample_C()
 			GenerateRegex(target, dontMatch, 9);
 		}
 
+		[Test]
+		public void Given_Sample_D()
+		{
+			// http://stackoverflow.com/questions/15807365/find-simplest-regular-expression-matching-all-given-strings?rq=1
+			var target = new[] { "h_q1_a", "h_q1_b", "h_q1_c", "h_p2_a", "h_p2_b", "h_p2_c" };
+			var dontMatch = new string[] { };
+
+			GenerateRegex(target, dontMatch, 16);
+		}
+
 		private static void GenerateRegex(IEnumerable<string> target, IEnumerable<string> dontMatch, int expectedLength)
 		{
 			string distinctSymbols = new String(target.SelectMany(x => x).Distinct().ToArray());
-			string genes = distinctSymbols + "?*()+";
+			string genes = distinctSymbols + "?*()[^]+";
 
 			Func<string, FitnessResult> calcFitness = str =>
 				{