Simple Protocol Parser

Actually, this is ssdb's network protocol, and I think it can be used on other projects.

• Lua Port: https://github.com/hit9/spp_lua
• Python Port: https://github.com/hit9/spp_py

Support Engines

• nodejs (>=v0.10.30)
• iojs (>=v1.0.4)

Protocol

Packet := Block+ '\n'
Block  := Size '\n' Data '\n'
Size   := literal_integer
Data   := string_bytes

For example:

3
set
3
key
3
val

Install

npm install spp

Usage

This package only provides parser, because packing is easy to do.

Parsing example:

var spp = require('spp'),
    parser = new spp.Parser();

parser.feed('2\nok\n\n');

var res;
while((res = parser.get()) !== undefined) {
  console.log(res); // ['ok']
}

API Ref

• parser.feed(buffer/string)
• parser.get()
• parser.clear()

Benchmark

$ node bench.js
spp parser: 500000 in 4.127s => 121153 ops
nodejs parser: 500000 in 6.143s => 81393 ops

License

MIT (c) 2014, hit9 (Chao Wang).