first commit

src/main/java/org/openautonomousconnection/luascript/events/UiEventRegistry.java

@@ -0,0 +1,18 @@
+package org.openautonomousconnection.luascript.events;
+
+import java.util.Locale;
+
+/**
+ * Normalizes event names.
+ */
+public final class UiEventRegistry {
+
+    private UiEventRegistry() { }
+
+    public static String normalize(String eventName) {
+        if (eventName == null) throw new IllegalArgumentException("eventName is null");
+        String e = eventName.trim().toLowerCase(Locale.ROOT);
+        if (e.isEmpty()) throw new IllegalArgumentException("eventName is empty");
+        return e;
+    }
+}