Re: Lua 5.1-5.3 serialization library

[François Perrad <francois.perrad@...>]

2015-01-14 16:52 GMT+01:00 Timm S. Mueller <tmueller@schulze-mueller.de>:
> On Wed, 14 Jan 2015 13:36:00 -0200
> Hisham <h@hisham.hm> wrote:
>
>> On 14 January 2015 at 12:34, Timm S. Mueller
>> <tmueller@schulze-mueller.de> wrote:
>> > On Wed, 14 Jan 2015 15:08:31 +0100
>> > Philipp Janda <siffiejoe@gmx.net> wrote:
>> >
>> >> Am 14.01.2015 um 13:51 schröbte Timm S. Mueller:
>> >> > Hi,
>> >>
>> >> Hi!
>> >>
>> >> >
>> >> > before I'm starting to write my own, I'm looking for a serialization
>> >> > and deserialization library. Requirements:
>> >> >
>> >> > - must cover Lua 5.1, 5.2, 5.3 and LuaJIT
>> >> > - in the MIT/BSD/CC/PD license department
>> >> > - must cover cyclic references and binary data
>> >> > - preferrably written in C for performance, Lua would be fine also
>> >> > - should only use official Lua APIs, no outside dependencies, no state
>> >> > internals
>> >> > - The transport format should be legal Lua, but this isn't strictly a
>> >> > requirement and may be sacrificed if the result can be transported,
>> >> > preferrably also between different architectures and Lua versions. I'm
>> >> > not objecting to using JSON format either.
>> >> >
>> >> > Not required: Userdata, metatables, functions and upvalues. A small
>> >> > footprint and the ability to operate on a writer/readers would be nice.
>> >> > Any ideas, recommendations?
>> >> >
>> >>
>> >> Have you ruled out those[1]?
>> >
>> > Not all, I'm still working through that list, but I found not a single
>> > mention of 5.2, and 5.3 was only recently released. Many entries depend
>> > on old versions, do write to a file, miss handling for cyclic
>> > references. Eris and Pluto are ruled out for version specificy and
>> > looking into state internals. Data Dumper and Serpent are close to my
>> > requirements, but there may be others which I am not aware of or
>> > achieve the same in C or use JSON as a transport format, for example.
>>
>> Make sure to let us know the results of your research, and once you
>> pick your favorite, mark it as "endorsed" at:
>>
>> https://lua-toolbox.com/
>>
>> In the "serialization" tag, Serpent is currently the most endorsed:
>>
>> https://lua-toolbox.com/label/9
>
> Ok, will do.
>
> I'm through with the list [1].
>
> My current favourites are MessagePack [2] and cmsgpack [3], because
> this has the prospect of offering both a pure Lua and a C library, it's
> for 5.1 to 5.3, and has excellent support in a wide variety of
> languages. Need to get into testing and see if msgpack doesn't impose
> unacceptable limits for me to sacrifice the readability of Lua.
>
> [1] http://lua-users.org/wiki/TableSerialization
> [2] https://github.com/fperrad/lua-MessagePack/
> [3] https://github.com/antirez/lua-cmsgpack
>

MsgPack cannot handle data with cyclic reference.
This is a limitation from the specification, not from a specific implementation.

François

> - Timm
>
> --
> Timm S. Mueller <tmueller@schulze-mueller.de>
> Schulze & Mueller GbR, Jungstr. 2, 10247 Berlin,
> Gesellschafter: Franciska Schulze, Timm S. Mueller,
> Tel. +49 30 85610000, http://www.schulze-mueller.de/
>