code: def get_dot_atom(value):
      
      dot_atom = DotAtom()
      if value[0] in CFWS_LEADER:
          token, value = get_cfws(value)
          dot_atom.append(token)
      token, value = get_dot_atom_text(value)
      dot_atom.append(token)
      if value and value[0] in CFWS_LEADER:
          token, value = get_cfws(value)
          dot_atom.append(token)
      return dot_atom, value
docs: dot-atom = [CFWS] dot-atom-text [CFWS]