code: private static boolean containsDelimiter(char[] escape, char[] delimiters) {
  
      for (char c : escape) {
        for (char d : delimiters) {
          if (d == c) {
            return true;
          }
        }
      }
      return false;
    }
docs: This method checks that the given {@code escape} sequence does NOT contain any of the {@code delimiters}.
  
  @param escape is the escape-sequence to check.
  @param delimiters are the delimiters that should NOT be contained in {@code escape}.
  @return {@code true} if {@code escape} contains a character of {@code delimiters}, {@code false} otherwise.