How to get output of piped process?

[frame]

On Thursday, 18 February 2021 at 17:27:48 UTC, Steven 
Schveighoffer wrote:

> readln will block. eof doesn't tell you that there is no data 
> in the pipe, it just says whether the pipe has been closed.

Of course, I must have been thinking of another language - I 
should take a coffee before posting.

Is there a d-library that can handle process/named pipes on 
Windows and Linux? I did not found any.