public final void mapOption(String option, Action a) {
		if(optionMap.containsKey(option)) {
			System.err.println("[CLC] The option --" + option + " has already been registered.");
		} else if(a == null) {
			System.err.println("[CLC] The option --" + option + " can not be linked to a null Action.");
		} else {
			optionMap.put(option, a);
		}
	}