binstruct 0.2.0

A binary struct parser/builder similar to Python's construct

example/main.dart

import 'package:binstruct/binstruct.dart';

void main() {
  // Define a binary struct with three fields:
  // - a 1-byte unsigned int ('a')
  // - a 2-byte signed int ('b')
  // - a binary struct with two fields ('c'):
  //   - a 1-byte unsigned int ('d')
  //   - a 1-byte unsigned int ('e')
  final struct = BinStruct([
    Uint8('a'),
    Int16('b'),
    StructField('c', BinStruct([Uint8('d'), Uint8('e')])),
  ]);

  // Build binary data from a map
  final bytes = struct.build({
    'a': 42,
    'b': -1234,
    'c': {'d': 0, 'e': 255}
  });

  print('Binary bytes: $bytes'); // Prints [42, 251, 46, 0, 255]

  // Parse the bytes back to a Dart map
  final parsed = struct.parse(bytes);

  print('Parsed data: $parsed'); // Prints {a: 42, b: -1234, c: {d: 0, e: 255}}

  // Validate the parsed values
  print(parsed['a'] == 42); // Prints true
  print(parsed['b'] == -1234); // Prints true
  print(parsed['c']['d'] == 0); // Prints true
  print(parsed['c']['e'] == 255); // Prints true
}