-// public static char Query(string msg, string selections, char defaultSelection)\r
-// {\r
-// Console.Write(msg);\r
-// string response = Console.ReadLine();\r
-// response.Trim();\r
-// if (response.Length < 1) return defaultSelection;\r
-// int resNum = selections.ToLower().IndexOf(response[0]);\r
-// if (resNum < 0 || resNum >= selections.Length) {\r
-// return Query(msg, selections, defaultSelection);\r
-// } else {\r
-// return selections[resNum];\r
-// }\r
-// }\r
+ public static char Query(string msg, string selections, char defaultSelection)\r
+ {\r
+ int resNum = -1;\r
+ while (resNum < 0) { \r
+ Console.Write(msg);\r
+ string response = Console.ReadLine();\r
+ response = response.Trim().ToLower();\r
+ if (response.Length < 1) return defaultSelection;\r
+ resNum = selections.ToLower().IndexOf(response[0]);\r
+ }\r
+ return selections[resNum];\r
+ }\r