Byte Checks
internal fun UByte.isWhitespace() = this == ASCII_SPACE
internal fun UByte.isTab() = this == ASCII_TAB
internal fun UByte.isHexDigit() = when(this) {
in ASCII_DIGIT_0 .. ASCII_DIGIT_9 -> true
in ASCII_UPPER_A .. ASCII_UPPER_F -> true
in ASCII_LOWER_A .. ASCII_LOWER_F -> true
else -> false
}