Re: Last Call: <draft-ietf-appsawg-json-patch-08.txt> (JSON Patch) to Proposed Standard

[Mark Nottingham <[e-mail]>]

On 15/12/2012, at 4:27 AM, David J. Biesack <[e-mail]> wrote:

> 
> Can one add elements of array to an array? 
> 
> E.g. given the document
> 
> { "a" : { "b" : [ "red", "green" ] } }
> 
> If I want to add two values to an existing array, I can use
> 
> [
> { "op": "add", "path": "/a/b/-", "value": "blue" },
> { "op": "add", "path": "/a/b/-", "value": "yellow" }
> ]
> 
> (I found in the examples how an array index is specified in the path, not in a separate "index" member;
> I guess my comments there should be directed at draft-ietf-appsawg-json-pointer-06 )
> 
> However, for appending to arrays, I would like to use
> 
> [ { "op": "add", "path": "/a/b/-", "value": [ "blue", "yellow" ] } ]
> 
> Reading the spec literally, I expect that this will yield
> 
> { "a" : { "b" : [ "red", "green", [ "blue", "yellow" ] ] } }

Exactly.

> instead of the desired
> 
> { "a" : { "b" : [ "red", "green", "blue", "yellow" ] } }
> 
> I suggest the semantics of this case should be explicit, to avoid unexpected surprises.

I've added an example to clarify this; thanks.



--
Mark Nottingham   http://www.mnot.net/