Re: [apps-discuss] JSON Patch

"Martin J. Dürst" <duerst@it.aoyama.ac.jp> Thu, 24 November 2011 07:14 UTC

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Cc: "apps-discuss@ietf.org" <apps-discuss@ietf.org>
Subject: Re: [apps-discuss] JSON Patch
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On 2011/11/24 11:08, Martin Thomson wrote:
> On 23 November 2011 12:21, Manger, James H
> <James.H.Manger@team.telstra.com>  wrote:
>> On escaping: how about replacing every '/' in an object member's name with the Unicode REPLACEMENT CHARACTER U+FFFD when creating a JSON pointer.
>
> Interesting that you choose U+FFFD in the same way that backslash was
> chosen as an escape character in the first place.  I'm not a big fan
> of that approach.

Yes, please don't. The semantics of U+FFFD is mostly a character that 
wasn't successfully converted from some other encoding. Overloading that 
with "escaping a slash" is a bad idea.

Regards,    Martin.


> It also results in a nine character escape sequence
> for a URI if you UTF-8 and %-encode.
>
>> It means a JSON pointer cannot reference an object member that actually has a U+FFFD char in its name [...]
>
> I might just start using that if you decide to prohibit it now.
>
> --Martin
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