code: private static void assertName(final String name, final JBBPToken token) {
      if (name.indexOf('.') >= 0) {
        throw new JBBPCompilationException("Detected disallowed char '.' in name [" + name + ']', token);
      }
    }
docs: The Method check that a field name supports business rules.
  
  @param name  the name to be checked
  @param token the token contains the name
  @throws JBBPCompilationException if the name doesn't support business rules