Simple Protocol Parser

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

• Nodejs Port: https://github.com/hit9/spp_node
• Lua Port: https://github.com/hit9/spp_lua

Support Py2.6+/3.3+ (Input str and out str, (the str means bytes in py2.x and unicode in py3.x)).

Protocol

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

For example:

3
set
3
key
3
val

Install

pip install spp

Usage

from spp import Parser

parser = Parser()
parser.feed('2\nok\n\n')

while 1:
    res = parser.get()
    if res is not None:
        print (res)  # => ['ok']
    else:
        break

API Ref

• parser.feed(str)
• parser.get()
• parser.clear()

License

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