# Source code for pathvalidate._const

    import enum
    from typing import Final

    DEFAULT_MIN_LEN: Final = 1
    INVALID_CHAR_ERR_MSG_TMPL: Final = "invalids=({invalid}), value={value}"

    _NTFS_RESERVED_FILE_NAMES: Final = (
        "$Mft",
        "$MftMirr",
        "$LogFile",
        "$Volume",
        "$AttrDef",
        "$Bitmap",
        "$Boot",
        "$BadClus",
        "$Secure",
        "$Upcase",
        "$Extend",
        "$Quota",
        "$ObjId",
        "$Reparse",
    )  # Only in root directory

    @enum.unique
    class Platform(enum.Enum):
        """
        Platform specifier enumeration.
        """

        #: POSIX compatible platform.
        POSIX = "POSIX"

        #: platform independent. note that absolute paths cannot specify this.
        UNIVERSAL = "universal"

        LINUX = "Linux"
        WINDOWS = "Windows"
        MACOS = "macOS"