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public ArrayList getScope(String ID){        ArrayList returnvars = null;        ArrayList partreturn = null;        String preffix = ID;        String partpreffix = "";        int index = 0;        while (!(ID.length() == partpreffix.length())){            int pos = preffix.indexOf(".",index);            index = pos + 1;            partpreffix = preffix.substring(pos-1);            boolean addSymbols = returnvars.addAll(SymbolTable.getVarDec(partpreffix));        }        return returnvars;    }