Method encode_with_encoding

python/pyfory/meta/metastring.py:297–373

Encodes the input string with the specified encoding. Args: input_string (str): The string to encode. encoding (Encoding): The encoding type. Returns: MetaString: An encoded MetaString object.

(self, input_string: str, encoding: Encoding)

        return self.encode_with_encoding(input_string, encoding)

    def encode_with_encoding(self, input_string: str, encoding: Encoding) -> MetaString:
        """
        Encodes the input string with the specified encoding.

        Args:
            input_string (str): The string to encode.
            encoding (Encoding): The encoding type.

        Returns:
            MetaString: An encoded MetaString object.
        """
        # Long meta string longer than _METASTRING_NUM_CHARS_LIMIT is not allowed.
        assert len(input_string) < _METASTRING_NUM_CHARS_LIMIT, "Long meta string longer than _METASTRING_NUM_CHARS_LIMIT is not allowed."

        if not input_string:
            return MetaString(
                input_string,
                Encoding.UTF_8,
                bytes(),
                0,
                self.special_char1,
                self.special_char2,
            )

        length = len(input_string)
        if encoding == Encoding.LOWER_SPECIAL:
            encoded_data = self._encode_lower_special(input_string)
            return MetaString(
                input_string,
                encoding,
                encoded_data,
                length * 5,
                self.special_char1,
                self.special_char2,
            )
        elif encoding == Encoding.LOWER_UPPER_DIGIT_SPECIAL:
            encoded_data = self._encode_lower_upper_digit_special(input_string)
            return MetaString(
                input_string,
                encoding,
                encoded_data,
                length * 6,
                self.special_char1,
                self.special_char2,
            )
        elif encoding == Encoding.FIRST_TO_LOWER_SPECIAL:
            encoded_data = self._encode_first_to_lower_special(input_string)
            return MetaString(
                input_string,
                encoding,
                encoded_data,
                length * 5,
                self.special_char1,
                self.special_char2,
            )
        elif encoding == Encoding.ALL_TO_LOWER_SPECIAL:
            chars = list(input_string)
            upper_count = sum(1 for c in chars if c.isupper())