Re: [Json] [apps-discuss] JSON mailing list and BoF

[Peter Saint-Andre <[e-mail]>]

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On 2/18/13 6:41 PM, Bjoern Hoehrmann wrote:
> * Joe Hildebrand (jhildebr) wrote:
>> On 2/18/13 5:26 PM, "Bjoern Hoehrmann" <[e-mail]>
>> wrote:
>>> A Working Group will also likely have to look at revising the
>>> rules to detect the character encoding in application/json
>>> resources (there is a lack of consensus whether to auto-detect
>>> UTF-32 and whether to honour a Unicode signature, whether to
>>> support UTF-32 when it is detected, and so on, partly due to
>>> how people load JSON resources; a generic "load text" API for
>>> instance might detect and remove a Unicode signature before
>>> the data is passed to a JSON parser; this used to be true for
>>> XMLHttpRequest for instance, I haven't checked the current
>>> situation there though).
>> 
>> (individual)
>> 
>> Yeah, that probably needs to be dealt with.  If 4627 had been
>> written as "JSON SHALL always be encoded as UTF-8 when
>> transmitted or stored", then this would not be a problem.
> 
> A practical problem is that some people include a Unicode Signature
> in their JSON documents, and their code works in some environments
> either by accident or because someone made a deliberate choice to
> support the Unicode Signature even though the RFC does not permit
> one, but it would break in more strict implementations. I would
> expect the Working Group to investigate whether the "UTF-8 BOM"
> should be allowed and how JSON documents with one should be
> handled, even if it decides to limit JSON to UTF-8.

Yeah, limiting things to UTF-8 these days would be a good thing. But,
as Bjoern notes, we might want to have a section about
interoperability with existing implementations.

Peter

- -- 
Peter Saint-Andre
https://stpeter.im/


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