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Subject: Re: Goals for rewording [lex] et. al..
From: Steve Downey (sdowney_at_[hidden])
Date: 2020-06-17 11:00:16


Stringizing also reaches back and can distinguish how a token was spelled.
http://eel.is/c++draft/cpp.stringize#2.sentence-6 I think in practice this
only shows up for escape sequences, though? I'm not able to construct an
example quickly.

On Wed, Jun 17, 2020 at 10:35 AM Corentin Jabot <corentinjabot_at_[hidden]>
wrote:

>
>
> On Wed, 17 Jun 2020 at 01:20, Steve Downey via SG16 <sg16_at_[hidden]>
> wrote:
>
>> My priorities, possibly not exhaustive
>>
>> 1) be able to have sensible discussions about the encodings of literals
>> in the standard
>>
>> 2) use the same terminology we would use in describing Library facilities
>> today
>>
>> 3) fix the hand waving in raw literals and any other place that in
>> practice compilers access the logical source file.
>>
>
> I don't believe compilers do that in practice - the only observable
> difference between raw literals and non raw literals in practice
> is how universal-character-name *escape sequences* are handled (as well as
> line splicing), the encodings involve are / should be the same
> and the wording should be a better job at describing this intent as too
> many destructive operations are done in phase 1 and 2
>
>
>>
>> 4) be able to avoid "standard" terms that aren't actually in the
>> standard, such as 'execution encoding', by having actual terminology.
>>
>> 5) remove the conversion to universal-character-name while keeping that
>> as an escape sequence. Use notional code points instead, which cleans up
>> accidentally forming a ucn.
>>
> +1000
>
> Strongly agree with all of that!
>
>
>>
>> --
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>>
>



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