Function parse_hex_char

Lib/tomllib/_parser.py:583–593

(src: str, pos: Pos, hex_len: int)

def parse_hex_char(src: str, pos: Pos, hex_len: int) -> tuple[Pos, str]:
    hex_str = src[pos : pos + hex_len]
    if len(hex_str) != hex_len or not HEXDIGIT_CHARS.issuperset(hex_str):
        raise TOMLDecodeError("Invalid hex value", src, pos)
    pos += hex_len
    hex_int = int(hex_str, 16)
    if not is_unicode_scalar_value(hex_int):
        raise TOMLDecodeError(
            "Escaped character is not a Unicode scalar value", src, pos
        )
    return pos, chr(hex_int)


def parse_literal_str(src: str, pos: Pos) -> tuple[Pos, str]: