code: public boolean add(String line) throws InvalidSmilesException {
          return add(smipar.parseSmiles(line), getSmilesSuffix(line));
      }
docs: Convenience method to add an abbreviation from a SMILES string.
  
  @param line the smiles to add with a title (the label)
  @return the abbreviation was added, will be false if no title supplied
  @throws InvalidSmilesException the SMILES was not valid