How does the transform you propose differ from?
JSON.canonicalize = (x) => JSON.stringify(
x,
(_, x) => {
if (x && typeof x === 'object' && !Array.isArray(x)) {
const sorted = {}
for (let key of Object.getOwnPropertyNames(x).sort()) {
sorted[key] = x[key]
}
return sorted
}
return x
})
The proposal says "in lexical (alphabetical) order."
If "lexical order" differs from the lexicographic order that sort uses, then
the above could be adjusted to pass a comparator function.
Applied to your example input,
JSON.canonicalize({
"escaping": "\u20ac$\u000F\u000aA'\u0042\u0022\u005c\\\"\/",
"other": [null, true, false],
"numbers": [1E30, 4.50, 6, 2e-3, 0.000000000000000000000000001]
}) ===
String.raw`{"escaping":"€$\u000f\nA'B\"\\\\\"/","numbers":[1e+30,4.5,6,0.002,1e-27],"other":[null,true,false]}`
// proposed
{"escaping":"\u20ac$\u000f\nA'B\"\\\\\"/","numbers":[1e+30,4.5,6,0.002,1e-27],"other":[null,true,false]}
The canonicalized example from section 3.2.3 seems to conflict with the
text of 3.2.2:
"""
If the Unicode value is outside of the ASCII control character range, it
MUST be serialized "as is" unless it is equivalent to 0x005c (\) or
0x0022 (") which MUST be serialized as \\ and \" respectively.
"""
So I think the "\u20ac" should actually be "€" and the implementation above
matches your proposal.
On Fri, Mar 16, 2018 at 3:16 AM, Anders Rundgren <
[email protected]> wrote:
> Dear List,
>
> Here is a proposal that I would be very happy getting feedback on since it
> builds on ES but is not (at all) limited to ES.
>
> The request is for a complement to the ES "JSON" object called
> canonicalize() which would have identical parameters to the existing
> stringify() method.
>
> The JSON canonicalization scheme (including ES code for emulating it), is
> described in:
> https://cyberphone.github.io/doc/security/draft-rundgren-jso
> n-canonicalization-scheme.html
>
> Current workspace: https://github.com/cyberphone/json-canonicalization
>
> Thanx,
> Anders Rundgren
> _______________________________________________
> es-discuss mailing list
> [email protected]
> https://mail.mozilla.org/listinfo/es-discuss
>
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