Interpolated strings and SQL

[Nickolay Bukreyev]

On Wednesday, 10 January 2024 at 15:07:42 UTC, Nickolay Bukreyev 
wrote:
> ```d
> writeln(interpolate!i"prefix $(baz + 4) suffix");
> // Desugars to:
> writeln(interpolate!(
>     InterpolationHeader(),
>     InterpolatedLiteral!"prefix "(),
>     InterpolatedExpression!"baz + 4"(),
>     baz + 4,
>     InterpolatedLiteral!" suffix"(),
>     InterpolationFooter(),
> ));
> // `interpolate!(...)` would expand to:
> writeln("prefix ", baz + 4, " suffix");
> ```

Well, `InterpolatedLiteral` and `InterpolatedExpression` don’t 
have to be templates anymore:

```d
writeln(interpolate!i"prefix $(baz + 4) suffix");
// Desugars to:
writeln(interpolate!(
     InterpolationHeader(),
     InterpolatedLiteral("prefix "),
     InterpolatedExpression("baz + 4"),
     baz + 4,
     InterpolatedLiteral(" suffix"),
     InterpolationFooter(),
));
// `interpolate!(...)` would expand to:
writeln("prefix ", baz + 4, " suffix");
```