string concatenation with %s

[Suliman via Digitalmars-d-learn]

> string sss = format("foo"-", ""bar");
>
> It should be obvious now that you forgot to escape those double 
> quotes.

Thanks! Is there any way to stay string as is. without need of 
it's escaping and so on?

It's seems I have seen something like it in docs, but I am not 
sure about it...