uint8BufferFromHex function
convert hex string to Uint8Buffer. Strips off 0x prefix if present.
Implementation
Uint8Buffer uint8BufferFromHex(String hex,
{bool utf8EncodeOnHexFailure = false}) {
if (hex.isEmpty) return _emptyUint8Buffer;
try {
final list =
hex.startsWith('0x') ? HEX.decode(hex.substring(2)) : HEX.decode(hex);
final result = Uint8Buffer();
result.addAll(list);
return result;
} catch (e) {
if (!utf8EncodeOnHexFailure) rethrow;
final list = utf8.encode(hex);
final result = Uint8Buffer();
result.addAll(list);
return result;
}
}