hugoarregui / msgpack-scheme

MessagePack implementation for CHICKEN Scheme

MessagePack implementation for CHICKEN scheme

An implementation of MessagePack for CHICKEN scheme.

API Specification

Primitive pack-family procedures:

(pack-uint PORT value)
(pack-sint PORT value)
(pack-float PORT FLONUM)
(pack-double PORT FLONUM)
(pack-bin PORT BYTE-BLOB)  ; byte-blob
(pack-str PORT STRING)     ; string
(pack-array PORT VECTOR)   ; vector
(pack-map PORT HASH-TABLE) ; hash-table
(pack-ext PORT EXT)        ; extension (see below)

Additionally, this implementation provides a generic pack procedure:

(pack PORT value)

This procedure will call primitive type packers, with the following rules:

• if the value has a packer, apply it.
• if the value is a string, it will be packed as str.
• if the value is a blob, it will be packed as bin.
• if the value is a char, it will be packed as a uint.
• if the value is a list, it will be packed as an array.
• if the value is a extension (see below), it will be packed as an ext

Unpack procedures:

(unpack PORT [mapper])

Extension

Extension is record defined as:

- type: integer from 0 to 127
- data: a byte-blob

(define-record extension type data)

Example:

(make-extension 10 (string->byte-blob "hi"))

License

Distributed under the New BSD License.

msgpack-scheme's Issues

Update egg to the latest mspack spec

Spec

Missing types

• fixstr
• str8,16,32
• bin8,16,32
• ext8,16,32
• fixext 1,2,4,8,16

Other

• Raw seems to be merged into str and bin (actually the old raw16 and raw32 headers are the current str16 and str32 ones)
• The spec is not clear (IMHO) about how to handle strings, my current understanding is
  • 1. they assume utf-8: problem, chicken doesn't handle utf8 very well
  • 2. they expect to transform a str* into a string

Port to Chicken 5

Hello,
I just ported you egg to Chicken 5 and cleaned up a bit. Do you want me to do a pull request or would you rather lend me the ownership of the package for chicken 5 ? (I would keep the BSD licence, also I am not sure how I should modify the copyright)