Reading a file of words line by line

[mark]

On Thursday, 16 January 2020 at 10:10:02 UTC, dwdv wrote:
> On 2020-01-16 04:54, Jesse Phillips via Digitalmars-d-learn 
> wrote:
>> [...]
[...]
> isn't far off, but could also be (sans imports):
>
> return File(filename).byLine
>     .map!(line => line.until!(not!isAlpha))
>     .filter!(word => word.count == wordsize)
>     .map!(word => word.to!string.toUpper)
>     .assocArray(0.repeat);

That's what I'm now using -- thanks!
(Now I can try the next bit.)