[erlang-questions] JSON encoding of arrays of arrays
Joseph Wayne Norton
Fri Oct 22 11:43:44 CEST 2010
Not sure if this is helpful or not to this discussion.
For integrating the UBF framework with JSON over TCP/IP and JSON-RPC over
HTTP, we choose a particular representation for mapping tuples, atoms, and
records. The comments at the top of this erlang module describe the
There is also (some) notes in the README that describe the approach taken:
We are also using the mochijson2 encoder/decoder (thanks!).
On Fri, 22 Oct 2010 18:29:07 +0900, Bob Ippolito <bob@REDACTED> wrote:
> On Fri, Oct 22, 2010 at 4:54 PM, Alessandro Sivieri
> <alessandro.sivieri@REDACTED> wrote:
>> 2010/10/22 Bob Ippolito <bob@REDACTED>
>>> I'm surprised that people are finding it to be complicated. A list of
>>> lists is literally an erlang list with erlang lists in it. It looks
>>> like the documentation does need some improvement though, it's only
>>> really obvious if you use it or if you read through the data types.
>> Well, maybe the documentation of mochijson2 is not *that* good (no
>> here), I mean a couple of examples should be added I think. Also, the
>> API would be the one that takes the standard Erlang types (for example a
>> list of lists) and produces a json, without the "struct" thing; I think
>> there was a project like that somewhere on the Net, but it did not work
> I definitely didn't say that the documentation was very good, just
> that the library is generally not that complicated.
> The problem with your suggestion is that the "standard Erlang types"
> are very ambiguous because there's no way to distinguish a list of
> numbers and a string, and an empty proplist is indistinguishable from
> an empty list. On top of that, if you were to support tuples as JSON
> arrays then you would have another ambiguituy with the representation
> of a proplist.
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