Jpacks NPM | npm.io

jpacks

Binary data packing and unpacking.

jpacks 一款强大的二进制结构编解码工具

支持复杂的结构：

e.g.

// 定义结构
jpacks.def('User', {
  age: 'uint8',
  token: jpacks.array('byte', 10),
  name: jpacks.shortString,
  note: jpacks.longString,
  contacts: jpacks.shortArray('User')
});

var user = {
  age: 6,
  token: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
  name: 'ss',
  note: '你好世界！Hello World!',
  contacts: [{
    age: 10,
    token: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
    name: 'nn',
    note: '风一样的孩子!The wind of the children!',
    contacts: [{
      age: 12,
      token: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
      name: 'zz',
      note: '圣斗士星矢！Saint Seiya！',
      contacts: []
    }]
  }, {
    age: 8,
    token: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
    name: 'cc',
    note: '快乐的小熊！Happy bear！',
    contacts: []
  }]
};

// 组包
var buffer = jpacks.pack('User', user);

// 解包
var user2 = jpacks.unpack('User', buffer);

console.log(JSON.stringify(user2, null, '  '));

Features 功能性

Supports running in NodeJS and Browser. 支持运行在 NodeJS 和浏览器环境。
Can be nested definition. 支持嵌套定义。
Commonly used numerical types, including signed and unsigned. 常用的数值类型，包括有符号和无符号。
Supports array types, including fixed length or indefinite. 支持数组类型，包括定长或不定长。
Int64. 大整数处理。
Protocol Buffers. 支持处理 PB 协议。
Data compression and decompression. 数据压缩和解压。