From 938efaeed404e96afa08522c6ea87c5ce73279a1 Mon Sep 17 00:00:00 2001
From: Olof Larsson <olof@sylt.nu>
Date: Mon, 13 Oct 2014 08:10:18 +0200
Subject: [PATCH] Add a case insensitive treeset builder and commonly used sets
 of strings meaning nothing and remove.

---
 .../massivecraft/massivecore/MassiveCore.java   |  6 ++++++
 .../massivecraft/massivecore/util/MUtil.java    | 17 +++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/src/main/java/com/massivecraft/massivecore/MassiveCore.java b/src/main/java/com/massivecraft/massivecore/MassiveCore.java
index 6ac9a0f1..0b28d727 100644
--- a/src/main/java/com/massivecraft/massivecore/MassiveCore.java
+++ b/src/main/java/com/massivecraft/massivecore/MassiveCore.java
@@ -34,6 +34,7 @@ import com.massivecraft.massivecore.store.Coll;
 import com.massivecraft.massivecore.store.ExamineThread;
 import com.massivecraft.massivecore.teleport.EngineScheduledTeleport;
 import com.massivecraft.massivecore.util.IdUtil;
+import com.massivecraft.massivecore.util.MUtil;
 import com.massivecraft.massivecore.util.PlayerUtil;
 import com.massivecraft.massivecore.util.Txt;
 import com.massivecraft.massivecore.xlib.gson.Gson;
@@ -52,6 +53,11 @@ public class MassiveCore extends MassivePlugin
 	public final static String INSTANCE = "instance";
 	public final static String DEFAULT = "default";
 	
+	public final static Set<String> NOTHING = MUtil.treeset("", "none", "null", "nothing");
+	public final static Set<String> REMOVE = MUtil.treeset("clear", "c", "delete", "del", "d", "erase", "e", "remove", "rem", "r", "reset", "res");
+	public final static Set<String> NOTHING_REMOVE = MUtil.treeset("", "none", "null", "nothing", "clear", "c", "delete", "del", "d", "erase", "e", "remove", "rem", "r", "reset", "res");
+	
+	
 	// -------------------------------------------- //
 	// INSTANCE & CONSTRUCT
 	// -------------------------------------------- //
diff --git a/src/main/java/com/massivecraft/massivecore/util/MUtil.java b/src/main/java/com/massivecraft/massivecore/util/MUtil.java
index a635ece7..84335008 100644
--- a/src/main/java/com/massivecraft/massivecore/util/MUtil.java
+++ b/src/main/java/com/massivecraft/massivecore/util/MUtil.java
@@ -602,6 +602,23 @@ public class MUtil
 		return new LinkedHashSet<T>(Arrays.asList(items));
 	}
 	
+	@SuppressWarnings("unchecked")
+	@SafeVarargs
+	public static <T> Set<T> treeset(T... items)
+	{
+		Set<T> ret;
+		if (items[0] instanceof String)
+		{
+			ret = (Set<T>) new TreeSet<String>(String.CASE_INSENSITIVE_ORDER);
+		}
+		else
+		{
+			ret = new TreeSet<T>();
+		}
+		ret.addAll(Arrays.asList(items));
+		return ret;
+	}
+	
 	@SuppressWarnings("unchecked")
 	public static <K, V> Map<K, V> map(K key1, V value1, Object... objects)
 	{