[erlang-questions] No JSON/MAPS interoperability in 17.0?

Erik Søe Sørensen eriksoe@REDACTED
Mon Mar 10 13:19:46 CET 2014

By the way, whatever happened to the community library list on erlang.org?
The linked page,  http://www.erlang.org/user.html , is a 404 these days...
And it sounds like it could still be useful (especially if maintained to a
reasonable degree).
Den 08/03/2014 14.15 skrev "Jesper Louis Andersen" <

> On Sat, Mar 8, 2014 at 2:01 PM, Charles Irvine <chuck.irvine@REDACTED>wrote:
>> I recently read that the "JSON Bridge" that Joe Armstrong describes in
>> his new book won't be included in Erlang 17.0. This would have been very
>> useful. With Json becoming so prevalent (web services, browsers, Mongodb,
>> etc), I think it is really surpassing XML as a common data interoperability
>> format. It must have been on the table at one point or it wouldn't have
>> appeared in Joe's book. Why did it not make it into the release? I think
>> someone indicated that it really didn't belong in the maps module and I can
>> kind of see that. But why not just put it in a "json" module? Regards, Chuck
> We already have a fair number of JSON handlers for Erlang:
> jsx, jiffy, mochijson, mochijson2, yaws json (deprecated), yaws json2, ...
> The reason we have that many is quite simple. One JSON parser does not
> satisfy all requirements. And to make things worse, there are small
> fluctuations in the "standard" which make it hard to create proper support.
> Adding a `json` module to the standard library is asking for jumping into
> this minefield. I'd much rather see libraries adopt maps as a way to
> represent JSON structures in Erlang. With maps, there is a neat mapping
> between most JSON documents and Erlang terms which will be useful. But I
> would be wary of standardizing on one due to the different requirements in
> handling.
> --
> J.
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