Initial commit — Wordle/letter word solver and scorer

Core/Extensions.cs

@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+using System.IO;
+
+namespace Core
+{
+    public static class Extensions
+    {
+        public static string Canonicalize(this string s)
+        {
+            return s.ToUpperInvariant();
+        }
+
+        public static IEnumerable<string> GetFileLines(this string filename)
+        {
+            using (var sr = File.OpenText(filename))
+            {
+                while (true)
+                {
+                    var line = sr.ReadLine();
+                    if (line == null)
+                        yield break;
+                    yield return line;
+                }
+            }
+        }
+    }
+}