Method _char_to_value

python/pyfory/meta/metastring.py:530–566

Converts a character to its encoded value based on the number of bits per character. Args: c (str): The character to convert. bits_per_char (int): The number of bits per character. Returns: int: The encoded value of the character.

(self, c: str, bits_per_char: int)

        return bytes(bytes_array)

    def _char_to_value(self, c: str, bits_per_char: int) -> int:
        """
        Converts a character to its encoded value based on the number of bits per character.

        Args:
            c (str): The character to convert.
            bits_per_char (int): The number of bits per character.

        Returns:
            int: The encoded value of the character.
        """
        if bits_per_char == 5:
            if "a" <= c <= "z":
                return ord(c) - ord("a")
            elif c == ".":
                return 26
            elif c == "_":
                return 27
            elif c == "$":
                return 28
            elif c == "|":
                return 29
            else:
                raise ValueError(f"Unsupported character for LOWER_SPECIAL encoding: {c}")
        elif bits_per_char == 6:
            if "a" <= c <= "z":
                return ord(c) - ord("a")
            elif "A" <= c <= "Z":
                return 26 + (ord(c) - ord("A"))
            elif "0" <= c <= "9":
                return 52 + (ord(c) - ord("0"))
            elif c == self.special_char1:
                return 62
            elif c == self.special_char2:
                return 63
            else:
                raise ValueError(f"Unsupported character for LOWER_UPPER_DIGIT_SPECIAL encoding: {c}")