String Interpolation Compare - DIP1027 and YAIDIP

[Richard (Rikki) Andrew Cattermole]

On 21/10/2023 7:57 PM, Walter Bright wrote:
> I'd agree that parsing it is a last resort if the { } also fails. But 
> having implemented formatted writes, I can attest that parsing it is not 
> a big deal. It's scanning till you see the %, then substitute your own 
> version. Of course, using { } means the compiler does it for you at 
> compile time.

This also means that one formatter doesn't have to know about another 
formatters format string syntax.

Like how formattedWrite doesn't need to know about GDateTime.

And yes, I have that working today with the ``{:}`` syntax in my 
codebase. Its great.

This is why I do not agree with Adam about his argument against 
supporting the format string specifier as part of the language. Having 
it in the language means it is all nicely unified.