String Interpolation

[Adam D Ruppe]

On Thursday, 26 October 2023 at 00:24:33 UTC, Walter Bright wrote:
> The money shot:
>
> "The design of template expressions deliberately makes it 
> impossible to go directly from a string literal or text block 
> with embedded expressions to a String with the expressions' 
> values interpolated. This prevents dangerously incorrect 
> strings from spreading through a program."

Yup. Even if we went with an object in D instead of a tuple, I'd 
be against the `alias toString this;` part. Just too much history 
saying that's a bad idea for D to embrace it at this point.