John Cowan cowan at mercury.ccil.org
Mon Mar 18 17:14:28 CET 2013

Stephane Bortzmeyer scripsit:

> > It hardly matters, since this is valid JSON:
> No, it is not. RFC 4627:
> > The names within an object SHOULD be unique.

SHOULD, alas, is not MUST.

> The question was discussed a lot of the IETF meeting in Orlando last
> week. This is because ECMAscript standard does not say exactly the
> same thing (one of the main differences between the two JSON
> specifications) and there is a project to make an IETF JSON working
> group to produce a 4627bis.

I hope so.  There is another known problem:  by my reading of the
RFC, "\D800" is not a valid string, because U+D800 is not a Unicode
character.  Crockford has said, however, that he intended it to be
valid: that is, JSON strings, like JavaScript strings, are sequences
of UTF-16 codepoints rather than of characters.

John Cowan    http://ccil.org/~cowan    cowan at ccil.org
Economists were put on this planet to make astrologers look good.
        --Leo McGarry

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