How stdin.readf ignore space char?

[a11e99z]

On Tuesday, 3 September 2019 at 13:25:30 UTC, lili wrote:
> On Tuesday, 3 September 2019 at 13:21:16 UTC, a11e99z wrote:
>> On Tuesday, 3 September 2019 at 12:55:29 UTC, lili wrote:
>
>         string d = "3.4    3.3 ";
>         double a;
>         double b;
>
>         //formattedRead(d,"%f %f", &a, &b);
>
>         d.readf!" %s %s"(a,b);//hug
>         writeln(a,b);

and this too
> string ds = "1.1 2.2 3.3";
> double[] darr;
> ds.formattedRead!"%( %s%)"( darr );
> darr.writeln;