On 11/24/22 12:16 PM, Victor Zverovich wrote:
> As promised here's a paper with the wording for the approved escaping
> changes: https://isocpp.org/files/papers/P2713R0.html.
>
> Note that one example in
> https://github.com/cplusplus/nbballot/issues/515 (the one that uses
> s8) is incorrect so I didn't include it.

That example was intentional. The example is:

     string s8 = format("e{:?}", "\u0301"); // s8 has value "e\u{301}"
                                                  // (the combining
character is escaped since it does
                                                  // not follow a
non-escaped non-combining character
                                                  // produced from the
same field)

The formatted field argument begins with a combining character. I wrote
this example with the assumption that we don't want to require
implementations to have to be aware of characters from outside of the
field content to be formatted as that seems like it would introduce
additional complexity that is not required today; please correct me if
I'm mistaken.

A similar example follows. We certainly wouldn't want the combining
character from the field to combine with the escaped tab character
sequence in this case.

     string s9 = format("\t{:?}", "\u0301"); // s9 has value
"\t\u{301}"
                                                  // (the combining
character is escaped since it does
                                                  // not follow a
non-escaped non-combining character
                                                  // produced from the
same field)

Tom.

>
> Cheers,
> Victor
>
> On Fri, Nov 11, 2022 at 6:20 PM Bryce Adelstein Lelbach aka wash
> <brycelelbach_at_[hidden]> wrote:
>
> Please email me when you have it.
>
> On Fri, Nov 11, 2022 at 1:58 PM Victor Zverovich
> <victor.zverovich_at_[hidden]> wrote:
>
> > Can you have it available for our November 30th meeting
> (that I still need to create a calendar entry for)?
>
> Sure.
>
> - Victor
>
> On Fri, Nov 11, 2022 at 1:56 PM Tom Honermann
> <tom_at_[hidden]> wrote:
>
> Can you have it available for our November 30th meeting
> (that I still need to create a calendar entry for)?
>
> Tom.
>
> On 11/11/22 6:54 PM, Victor Zverovich via Lib-Ext wrote:
>> I am putting together a paper but it won't be ready today
>> and probably needs to be looked at by SG16 to check the
>> wording.
>>
>> - Victor
>>
>> On Fri, Nov 11, 2022 at 1:48 PM Corentin
>> <corentin.jabot_at_[hidden]> wrote:
>>
>> I think Victor is working on it, I'm happy to co author.
>>
>> On Fri, Nov 11, 2022, 13:44 Bryce Adelstein Lelbach
>> aka wash <brycelelbach_at_[hidden]> wrote:
>>
>> We voted to resolve format escaping NB comments
>> US-38-098 and FR-005-134 at the 2022-11 Kona
>> meeting in both SG16 and Library Evolution.
>>
>> However, the resolution we voted on is not as
>> simple as "adopt the proposed resolution in the
>> comments". It took me 10 minutes of reading
>> minutes and poll results to determine what
>> exactly we had approved.
>>
>> Therefore, I'm going to need a short paper that
>> resolves these NB comments for the Library
>> Evolution electronic poll. It should have a brief
>> overview and motivation (I'm not looking for much
>> there) and the specific wording that resolves
>> these NB comments.
>>
>> Ideally, I'd get the paper today, or at least
>> by 2022-11-14 so that it can be included in the
>> post meeting Library Evolution polls. At the
>> latest, I'd need it by 2023-01-01.
>>
>> --
>> Bryce Adelstein Lelbach aka wash (he/him/his)
>> US Programming Language Standards Chair
>> ISO C++ Library Evolution Chair
>> Principal Architect @ NVIDIA
>> --
>>
>>
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>
>
>
> --
> Bryce Adelstein Lelbach aka wash (he/him/his)
> US Programming Language Standards Chair
> ISO C++ Library Evolution Chair
> Principal Architect @ NVIDIA
> --
>