binstruct 0.1.3

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 4-byte float ('c')
  final struct = BinStruct([
    Uint8('a'),
    Int16('b'),
    Float32('c'),
  ]);

  // Build binary data from a map
  final bytes = struct.build({
    'a': 42,
    'b': -1234,
    'c': 3.14,
  });

  print('Binary bytes: $bytes'); // Prints [42, 251, 46, 64, 72, 245, 195]

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

  print('Parsed data: $parsed'); // Prints {a: 42, b: -1234, c: 3.140000...}

  // Validate the parsed values
  assert(parsed['a'] == 42);
  assert(parsed['b'] == -1234);
  assert(num.parse(parsed['c'].toStringAsFixed(2)) == 3.14);
}