Changed how parsing is done, performed by dispatcher and can now look as deep as needed

src/main/java/net/minecraft/commands/tree/RootCommandNode.java

@@ -0,0 +1,16 @@
+package net.minecraft.commands.tree;
+
+import net.minecraft.commands.context.CommandContextBuilder;
+import net.minecraft.commands.exceptions.ArgumentValidationException;
+import net.minecraft.commands.exceptions.IllegalArgumentSyntaxException;
+
+public class RootCommandNode extends CommandNode {
+    public RootCommandNode() {
+        super(null);
+    }
+
+    @Override
+    public String parse(String command, CommandContextBuilder contextBuilder) throws IllegalArgumentSyntaxException, ArgumentValidationException {
+        return command;
+    }
+}