PredicateEqualsIgnoreCase and used aliases

src/com/massivecraft/massivecore/PredicateEqualsIgnoreCase.java

@@ -0,0 +1,44 @@
+package com.massivecraft.massivecore;
+
+// Inspired by: String#regionMatches(ignoreCase, toffset, other, ooffset, len)
+public class PredicateEqualsIgnoreCase implements Predicate<String>
+{
+	// -------------------------------------------- //
+	// FIELDS
+	// -------------------------------------------- //
+	
+	private final String strLower;
+	private final String strUpper;
+	
+	// -------------------------------------------- //
+	// CONSTRUCT
+	// -------------------------------------------- //
+	
+	public static PredicateEqualsIgnoreCase get(String prefix) { return new PredicateEqualsIgnoreCase(prefix); }
+	public PredicateEqualsIgnoreCase(String str)
+	{
+		if (str == null) throw new NullPointerException("str");
+		this.strLower = str.toLowerCase();
+		this.strUpper = str.toUpperCase();
+	}
+
+	// -------------------------------------------- //
+	// OVERRIDE
+	// -------------------------------------------- //
+
+	@Override
+	public boolean apply(String str)
+	{
+		if (str == null) return false;
+		int index = this.strLower.length();
+		if (str.length() != index) return false;
+		while (index-- > 0)
+		{
+			char c = str.charAt(index);
+			if (c == strLower.charAt(index)) continue;
+			if (c != strUpper.charAt(index)) return false;
+		}
+		return true;
+	}
+	
+}

src/com/massivecraft/massivecore/command/editor/EditSettings.java

@@ -1,11 +1,14 @@
 package com.massivecraft.massivecore.command.editor;
 
+import java.util.Set;
+
 import org.bukkit.command.CommandSender;
 import org.bukkit.permissions.Permission;
 
 import com.massivecraft.massivecore.MassiveException;
 import com.massivecraft.massivecore.command.type.Type;
 import com.massivecraft.massivecore.command.type.sender.TypeSender;
+import com.massivecraft.massivecore.util.MUtil;
 import com.massivecraft.massivecore.util.Txt;
 
 public class EditSettings<O>
@@ -93,10 +96,16 @@ public class EditSettings<O>
 	// TYPE READ UTILITY
 	// -------------------------------------------- //
 	
-	public O getUsedOrCommandException(CommandSender sender) throws MassiveException
+	// No nice constructors for TreeSet :(
+	public static final Set<String> ALIASES_USED = MUtil.treeset("used", "selected", "chosen");
+	
+	public O getUsedOrCommandException(CommandSender sender, String arg) throws MassiveException
+	{
+		if (arg == null || ALIASES_USED.contains(arg))
 		{
 			O ret = this.getUsed(sender);
 			if (ret != null) return ret;
+		}
 		String noun = this.getObjectType().getTypeName();
 		String aan = Txt.aan(noun);
 		throw new MassiveException().addMsg("<b>You must select %s %s for use to skip the optional argument.", aan, noun);