Dart Bencode Package

Update Dart Bencode Package

https://github.com/kyorohiro/dart2.bencode

• support SDK
  • dart:io
  • dart:html

sdk: '>=2.12.0 <3.0.0'

• for dart v1 is here https://github.com/kyorohiro/dart.bencode

Usage

dependencies:
  info.kyorohiro.dart2.bencode:
    git:
      url: https://github.com/kyorohiro/dart.tiny_parser.git
      ref: v0.0.2

import 'package:info.kyorohiro.dart2.bencode/bencode.dart';
import 'package:dart2/dart2.dart';

{
  var out = Bencode.encode(1024);
  unit.expect('i1024e', convert.utf8.decode(out.toList()));
  num ret = Bencode.decode(out);
  unit.expect(1024, ret);
}

{
  var out = Bencode.encode('test');
  unit.expect('4:test', convert.utf8.decode(out.toList()));
  var text = Bencode.decode(out) as type.Uint8List;
  unit.expect('test', convert.utf8.decode(text.toList()));
}

{
  var l = [];
  l.add('test');
  l.add(1024);
  var out = Bencode.encode(l);
  unit.expect('l4:testi1024ee', convert.utf8.decode(out.toList()));

  List list = Bencode.decode(out);
  unit.expect('test', convert.utf8.decode(list[0].toList()));
  unit.expect(1024, list[1]);
}

{
  var m = <String, Object>{};
  m['test'] = 'test';
  m['value'] = 1024;
  var out = Bencode.encode(m);
  unit.expect('d4:test4:test5:valuei1024ee', convert.utf8.decode(out.toList()));

  Map me = Bencode.decode(out);
  unit.expect('test', convert.utf8.decode(me['test'].toList()));
  unit.expect(1024, me['value']);
}

What is Bencode

B-encode is the encoding for BitTorrent network.
support following type of values.

• byte strings
• integers
• lists
• dictionaries

Bencode's unique point compare to json format is to use bytes data.

https://en.wikipedia.org/wiki/Bencode

Comments

[kyorohiro (kiyohiro kawamura)]

many bittorrent related package...
pub.dev/packages?q=torrent