Reading a file of words line by line

[dwdv]

On 2020-01-15 16:34, mark via Digitalmars-d-learn wrote:
> Is this as compact as it _reasonably_ can be?

How about this?

auto uniqueWords(string filename, uint wordsize) {
     import std.algorithm, std.array, std.conv, std.functional, std.uni;

     return File(filename).byLine
         .map!(line => line.until!(not!isAlpha))
         .filter!(word => word.count == wordsize)
         .map!(word => word.to!string.toUpper)
         .array
         .sort
         .uniq;
}