ReqHex.max constructor
Constrains the input data to hexadecimal digits and its length to a
maximum of max
hex-digits.
max
the maximum number of hex-digits; it must be > 0.
blank
the error message in case of a null or empty input value.
mal
the error message if non-hex-digit characters are found.
long
the error message if the input length is longer than max
digits.
Implementation
ReqHex.max(int max, {String? blank, String? mal, String? long})
: _reqHex = Pair.str2(
Req(blank: blank).call,
Hex.max(max, mal: mal, long: long).call,
);