code: def save(self, dolist=0):
          
          quoted = not dolist
          fields = 7*[""]
          fields[0] = self.name
          fields[1] = self.type
          fields[2] = self.mode
          fields[3] = self.toString(self.value,quoted=quoted)
          if self.choice is not None:
              schoice = list(map(self.toString, self.choice))
              schoice.insert(0,'')
              schoice.append('')
              fields[4] = repr('|'.join(schoice))
          elif self.min not in [None,INDEF]:
              fields[4] = self.toString(self.min,quoted=quoted)
          if self.max not in [None,INDEF]:
              fields[5] = self.toString(self.max,quoted=quoted)
          if self.prompt:
              if quoted:
                  sprompt = repr(self.prompt)
              else:
                  sprompt = self.prompt
              # prompt can have embedded newlines (which are printed)
              sprompt = sprompt.replace(r'\012', '\n')
              sprompt = sprompt.replace(r'\n', '\n')
              fields[6] = sprompt
          # delete trailing null parameters
          for i in [6,5,4]:
              if fields[i] != "": break
              del fields[i]
          if dolist:
              return fields
          else:
              return ','.join(fields)
docs: Return .par format string for this parameter
  
          If dolist is set, returns fields as a list of strings.  Default
          is to return a single string appropriate for writing to a file.