Introduction

MessagePack saves type-information to the serialized data. Thus each data is stored in type-data or type-length-data style.

MessagePack supports following types:

• Fixed length types
  • Integers
  • nil
  • boolean
  • Floating point
• Variable length types
  • Raw bytes
• Container types
  • Arrays
  • Maps

Each type has one or more serialize format:

• Fixed length types
  • Integers
    • positive fixnum
    • negative fixnum
    • uint 8
    • uint 16
    • uint 32
    • uint 64
    • int 8
    • int 16
    • int 32
    • int 64
  • Nil
    • nil
  • Boolean
    • true
    • false
  • Floating point
    • float
    • double
• Variable length types
  • Raw bytes
    • fix raw
    • raw 16
    • raw 32
• Container types
  • Arrays
    • fix array
    • array 16
    • array 32
  • Maps
    • fix map
    • map 16
    • map 32

Current Implementation

The following code provides pure Object Pascal implementation of msgpack according to Format Specification from Dec 31 2012.

Files

• src/

  • msgpack.pas - basic implementation for packing and unpacking data
  • msgpack_consts - constant information regarding the protocol
  • msgpack_errors - a unit for error resourcestring holdings
  • msgpack_bits - a unit that does bit manipulation that does not exists on FPC by itself

• tests/

  • msgpack_testing.lpr - program that uses fpcunit
  • convert_testcase.pas - unit test for msgpack.pas

• examples/

• docs/

• license - The following library is using MIT license

• README.md - this file