code: def _get(self):
          
          c = self.theLookahead
          self.theLookahead = None
          if c == None:
              c = self.instream.read(1)
          if c >= ' ' or c == '\n':
              return c
          if c == '': # EOF
              return '\000'
          if c == '\r':
              return '\n'
          return ' '
docs: return the next character from stdin. Watch out for lookahead. If
             the character is a control character, translate it to a space or
             linefeed.