extract info specified in option

def extract(self, m):
        """
        extract info specified in option
        """
        self._clear()
        self.m = m
        # self._preprocess()

        if self.option != []:
            self._url_filter()
            self._email_filter()
            if 'tex' in self.option:
                self._tex_filter()
            # if 'email' in self.option:
            #     self._email_filter()
            if 'telephone' in self.option:
                self._telephone_filter()
            if 'QQ' in self.option:
                self._QQ_filter()
            if 'emoji' in self.option:
                self._emoji_filter()
            if 'wechat' in self.option:
                self._wechat_filter()
        self._filter()
        if 'blur' in self.option:
            self._blur = get_number(self.m, self._limit)

        return self._get_result()