Replace ugly if/else with match block

src/lib.rs

@@ -24,17 +24,11 @@ pub fn reply(message: &str) -> &str {
     if u > l { shouted = true; }
     if u+l+n == 0 { silence = true; }
 
-    if shouted {
-        if question {
-            return "Calm down, I know what I'm doing!"
-        } else {
-            return "Whoa, chill out!"
-        }
-    } else if question {
-        return "Sure."
-    } else if silence {
-        return "Fine. Be that way!"
-    } else {
-        return "Whatever."
+    match (question,shouted, silence) {
+        (true,true, _  ) => "Calm down, I know what I'm doing!",
+        (true, _  , _  ) => "Sure.",
+        ( _  ,true, _  ) => "Whoa, chill out!",
+        ( _  , _  ,true) => "Fine. Be that way!",
+        ( _  , _  , _  ) => "Whatever.",
     }
 }