code: def get_text(self, position_from, position_to):
          
          cursor = self.__select_text(position_from, position_to)
          text = to_text_string(cursor.selectedText())
          all_text = position_from == 'sof' and position_to == 'eof'
          if text and not all_text:
              while text.endswith("\n"):
                  text = text[:-1]
              while text.endswith(u"\u2029"):
                  text = text[:-1]
          return text
docs: Return text between *position_from* and *position_to*
          Positions may be positions or 'sol', 'eol', 'sof', 'eof' or 'cursor'