Wanted: Format character for source code literal

[Imperatorn]

On Friday, 30 April 2021 at 07:10:38 UTC, Berni44 wrote:
> I plan to add an extension to `std.format`, namely a new format 
> character with the meaning of producing a source code literal. 
> Or more formally, the following snippet should work for every 
> type this extension will support:
>
> [...]

If this would be unique to mixins, then %m, if not, L(iteral) or 
D(literal).