Hi Hugo,

     Thanks for your work on msgpack, it seems like an interesting project.
Unfortunately, machine floating point formats are complicated, so any
related code will be complicated as well. I don't know much about the
msgpack protocol, but if representing floating-point numbers as strings is
an option, I encourage you to look at fpio (
http://wiki.call-cc.org/eggref/4/fpio ), a BSD-licensed egg for converting
floating point numbers to strings and vice versa. endian-blob includes code
from GDB, so it cannot be relicensed without approval from the GNU project.

  Ivan



On Tue, Jan 29, 2013 at 5:53 AM, Hugo Arregui <hugo.arre...@gmail.com>wrote:

> Hi,
>
> Recently I wrote an implementation of msgpack[1], which can be found
> here[2]. This is my first "full" project in scheme, so I would
> appreciate any feedback (please, be destructive).
>
> A couple of points already has been mentioned:
>
> - Macros to reduce redundancy (I'm reading about them, so I'm
> expecting to fix this soon).
> - A non technical but important thing: I'm using endian-blob egg,
> which is licensed as gpl and it's incompatible with the project
> license, which is bsd.
>
> But, beside that, I have a few questions:
>
> 1) To avoid the creation of very heavy structures in tests, i'm using
> a kind of mock[3], which overrides some procedures, and restores it
> later. Is this the right way to do it?.
>
> In fact, in the "egg" branch I tried to pack the project as an egg and
> I think this "hack" is not working.
>
> 2) To access the procedures mentioned in (1), i'm using two modules:
> "msgpack-imple" which contains the whole project and it's used for the
> tests, and "msgpack" which import "msgpack-imple" and expose the real
> interface. Again, is this the right way to do it?
>
> 3) To read/write float/double numbers (in ieee754) i'm using
> endian-blob egg (here[4]), it's there any alternative without
> implementing the full float/double->binary logic (which seems quite
> complicated)?
>
> Thanks,
> Hugo.
>
> [1] http://msgpack.org/
> [2] https://github.com/hugoArregui/msgpack-scheme
> [3]
> https://github.com/hugoArregui/msgpack-scheme/blob/master/tests/run.scm#L187
> [3]
> https://github.com/hugoArregui/msgpack-scheme/blob/master/msgpack-imple.scm#L131
>
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