Thank you for the additional input, Tom!
We will see this paper in the next SG9 meeting, scheduled for August 14th
(today), 9:30 Pacific time, here:
https://iso.zoom.us/j/94426994719?pwd=WnhNYVdvYWNrUzcvNEZPbStySTh6dz09
*SG16 members are welcome, of course. *
Feel free to add your thoughts/comments on what's discussed in this thread
prior to the meeting.


Best Regards,
Inbal Levi

ISO C++ LEWG Co-Chair, SG9 Chair & Israeli NB Chair
C++Now Program Chair & CoreC++ Conference Organizer


On Tue, 11 Jul 2023 at 18:28, Tom Honermann <tom_at_[hidden]> wrote:

> For clarity, the reason that SG16 is copied on this thread stems from
> discussion in the 2023-03-22 SG6 meeting
> <https://github.com/sg16-unicode/sg16-meetings#march-22nd-2023> during
> review of P2728R0:
>
> - Hubert asked if the transcoding iterator hierarchy unpacking is
> exposed such that a programmer could take advantage of it.
> - Zach replied that he had not considered exposing it, but that doing
> so is a possibility that could be looked into.
> - Zach agreed that it would be useful to have generalized support for
> such unpacking.
>
> Zach proceeded to expose the unpacking feature in a later revision of the
> paper. The question, mostly to Hubert, is whether the exposure that Zach
> added satisfies Hubert's motivation for asking the question. Essentially,
> do we want to expose this (Unicode specific) functionality as described or,
> insist on generalizing this functionality if it is to be exposed, or leave
> the unpacking mechanism as unspecified implementation-detail (but with the
> unpacking behavior still specified in prose).
>
> Tom.
> On 7/11/23 10:47 AM, Inbal Levi via SG16 wrote:
>
> Thanks for the clarification, Zach!
>
> To be more accurate - for the Unicode proposal, we talked about having a
> Unicode-specific implementation (renamed, as suggested).
> But one possible implementation is to have a general one, with a
> specialization for Unicode (or forwarding to the specific one), so I'm
> still interested to know if there's an appetite/interest in a (possibly)
> general utility :)
>
>
> Best Regards,
> Inbal Levi
>
> ISO C++ LEWG Co-Chair, SG9 Chair & Israeli NB Chair
> C++Now Program Chair & CoreC++ Conference Organizer
>
>
> On Tue, 11 Jul 2023 at 17:35, Zach Laine <whatwasthataddress_at_[hidden]>
> wrote:
>
>> I don't think we had much support for moving
>> unpack_iterator_and_sentinel out of std::uc (it's 100%
>> Unicode-specific, and as Tomasz pointed out would be *very* difficult
>> to make interoperable with anything else). However, we did discuss
>> that it should get some Unicodiness in its name -- maybe be adding
>> "utf" in there or similar.
>>
>> Zach
>>
>> On Tue, Jul 11, 2023 at 9:31 AM Inbal Levi <sinbal2l_at_[hidden]> wrote:
>> >
>> > Hello all,
>> > Minutes from the latest SG9 meeting appear here:
>> https://wiki.edg.com/bin/view/Wg21telecons2023/P2728
>> >
>> > During the meeting, we've discussed P2728R5, and considered having the
>> following two utils from the paper ported into the rangers namespace (names
>> are tentative):
>> >
>> > borrowerd_transform_view (similar to transform_view, but able to extend
>> the lifetime of the underline thing)
>> > unpack_iterator_and_sentinel(ranges::begin(base_, ranges::end(base_))
>> (able to "strip" unnecessary wrapping, to improve performance)
>> >
>> > (Tomasz/Zach will send a mail thread with the details of the proposed
>> to the SG9 reflector)
>> > I would love the group's input on this direction. CCing SG16, as I
>> understood this was brought up there as well.
>> >
>> > Thanks all for joining and for the great feedback!
>> >
>> > Best Regards,
>> > Inbal Levi
>> >
>> > ISO C++ LEWG Co-Chair, SG9 Chair & Israeli NB Chair
>> > C++Now Program Chair & CoreC++ Conference Organizer
>> >
>> >
>> > On Mon, 10 Jul 2023 at 17:20, Zach Laine <whatwasthataddress_at_[hidden]>
>> wrote:
>> >>
>> >> The latest revision is here:
>> https://isocpp.org/files/papers/P2728R5.html
>> >>
>> >> Zach
>> >>
>> >> On Mon, Jul 10, 2023 at 7:08 AM Inbal Levi <sinbal2l_at_[hidden]> wrote:
>> >> >
>> >> > Hello all,
>> >> > I apologize for the late mail. As discussed in Varna, today we will
>> continue reviewing the paper by Zach (9:30 Pacific, as usual):
>> >> >
>> >> > (Tentative) P2728R3: Unicode in the Library, Part 1: UTF Transcoding
>> >> >
>> >> > Meeting link:
>> https://iso.zoom.us/j/94426994719?pwd=WnhNYVdvYWNrUzcvNEZPbStySTh6dz09
>> >> > Password: as usual (please email me if you're unsure)
>> >> >
>> >> > See you soon!
>> >> > Best Regards,
>> >> > Inbal Levi
>> >> >
>> >> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> >> > Lead Software Engineer @ Millenium
>> >> > Isocpp, Boost &"Hamakor" Non-Profits Board Member
>> >> > ISO C++ LEWG Co-Chair, SG9 Chair & Israeli NB Chair
>> >> > C++Now Program Chair & CoreC++ Conference Organizer
>> >> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>
>