optional process

[Taylor Hillegeist]

On Thursday, 5 December 2019 at 15:43:30 UTC, Paul Backus wrote:
> On Thursday, 5 December 2019 at 15:30:52 UTC, Taylor Hillegeist 
> wrote:
>> On Friday, 29 November 2019 at 15:24:31 UTC, Paul Backus wrote:
>>
>>>    .pipe!((output) {
>>>       if (sortOutput)
>>>          return output.sort!("a < b");
>>>       else
>>>          return output;
>>>    })
>>>    .writeln(); // maybe you meant each!writeln ?
> range
>     .someFunction
>     .each!writeln;
>
> So why use pipe? Because in this case, the function we want to 
> apply is a lambda, and you can't call lambdas with UFCS.

I agree with this.

I wasn't clear enough in my question though.
I was trying to distinguish between std.functional.compose and 
std.functional.pipe
they look very the same. Pipe says it reverses functions order. 
Which makes no sense to me.