code: private String suffix(final String line) {
          for (int i = 0; i < line.length(); i++) {
              char c = line.charAt(i);
              if (c == ' ' || c == '\t') return line.substring(i + 1);
          }
          return "";
      }
docs: Obtain the suffix after a line containing SMILES. The suffix follows
  any ' ' or '\t' termination characters.
  
  @param line input line
  @return the suffix - or an empty line