On 27/04/2022 06.05, Steve Downey via SG16 wrote:

    > d-char: <https://eel.is/c++draft/full#nt:d-char>
    any member of the basic character set except:
       U+0020 SPACE, U+0028 LEFT PARENTHESIS, U+0029 RIGHT PARENTHESIS, U+005C REVERSE SOLIDUS,
       U+0009 CHARACTER TABULATION, U+000B LINE TABULATION, U+000C FORM FEED, and new-line
    This one would need some massaging. 

Not clear to me that it does? Not white-space-ish or starting an escape? 

This restricts the delimiter characters in a raw string literal.
If you don't change this list, you'll add $ @ ` to the list of valid
delimiter characters in a raw string literal.

Either you amend this exclusion list (retaining the status quo), or
you should highlight this change in behavior in the prose part of
your paper.

I don't see a reason to restrict use of these characters in that context; other symbols are permitted.

If the related wording is changed, please note that it appears twice in the standard; in [lex.string] and in [gram.lex] (I hope/expect the latter is generated from the former, but I don't know that for sure).

Tom.

Jens