Re: [Json] (no subject)

Martin J. Dürst <duerst@it.aoyama.ac.jp> Tue, 31 January 2017 05:42 UTC

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From: "Martin J. Dürst" <duerst@it.aoyama.ac.jp>
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Subject: Re: [Json] (no subject)
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On 2017/01/31 12:58, Tim Bray wrote:

> n Tue, Sep 20, 2016 at 1:29 AM, Barry Leiba <barryleiba@computer.org> wrote:
> ​​
>
>> ​​
>>> "Byte order mark" in Section 8.1 needs a definition, for example by
>> ​​
>>
>>> including the Unicode codepoint value.
>>
> ​​
> ​Correct - a bit more work than you might think, since there's not a really
> good canonical reference. So I just updated the text to read
> “Implementations MUST NOT add a byte order mark (either U+FEFF or U+FFE) to
> the beginning of​…”
>
> Anyone have a better idea?

Definitely. First, you probably intended this to be (either U+FEFF or 
U+FFFE). Second, only the former is the BOM, the second is a 
noncharacter according to Unicode terminology. To be more explicit, the 
BOM is always the codepoint U+FEFF. It appears as 0xFE 0xFF in big 
endian UTF-16, and as 0xFF 0xFE in little endian UTF-16, but that's a 
separate issue.

Regards,   Martin.