byte_util
byte utility (static functions)
- read string to bytes array
- radix: hex or dec
- string splitted by space or comma
- convert bytes array to readable string
- read base64 string to bytes array
- convert bytes array to base64 string
- clone bytes array
- deep compare two bytes array
- extract bytes array by start index and length
byte array class
- init by bytes array
- init by int(byte) value
- combine two bytes array
- combine bytes array and byte value
- append bytes to tail
Byte: stands for byte
ByteWord: stands for DWORD,composed of high byte and low byte
ByteDoubleWord: stands for double word(four bytes)
little-endian
example
void testFromReadable() {
const str1 = '01 02, ff 0x10,0xfa , 90 76 AF a0';
final bytes1 = ByteUtil.fromReadable(str1);
// [1, 2, 255, 16, 250, 144, 118, 175, 160]
print(bytes1);
const str2 = '101 02 90 01,33 90 76 102, 901';
final bytes2 = ByteUtil.fromReadable(str2, radix: Radix.dec);
// [101, 2, 90, 1, 33, 90, 76, 102, 133]
print(bytes2);
}
void testToReadable() {
final bytes = Uint8List.fromList([0x80, 01, 02, 0xff, 0xA1, 30, 10, 20, 77]);
final str1 = ByteUtil.toReadable(bytes);
// 0x80 0x1 0x2 0xFF 0xA1 0x1E 0xA 0x14 0x4D
print(str1);
final str2 = ByteUtil.toReadable(bytes, radix: Radix.dec);
// 128 1 2 255 161 30 10 20 77
print(str2);
}