code: @Nonnull
    public CSVWriter setSeparatorChar (final char cSeparator)
    {
      if (cSeparator == CCSV.NULL_CHARACTER)
        throw new UnsupportedOperationException ("The separator character must be defined!");
      m_cSeparatorChar = cSeparator;
      return this;
    }
docs: Sets the delimiter to use for separating entries.
  
  @param cSeparator
  the delimiter to use for separating entries
  @return this