public final void mapAbbreviation(Character abbr, Action a) {
		if(abbrMap.containsKey(abbr)) {
			System.err.println("[CLC] The abbreviation -" + abbr + " has already been registered.");
		} else if(!Character.isLetter(abbr)) {
			System.err.println("[CLC] The abbreviation -" + abbr + " is not alphabetic.");
		} else if(a == null) {
			System.err.println("[CLC] The abbreviation -" + abbr + " can not be linked to a null Action.");
		} else {
			abbrMap.put(abbr, a);
		}
	}