joiner: How to iterate over immutable ranges?

[Bastiaan Veelo via Digitalmars-d-learn]

On Monday, 15 February 2016 at 01:42:30 UTC, Mike Parker wrote:
> On Sunday, 14 February 2016 at 19:32:31 UTC, Bastiaan Veelo 
> wrote:
>
> Maybe this [1] will help shed some light.
>
> [1] https://www.packtpub.com/books/content/understanding-ranges

Good idea. I have your book, but it is very nice to have this 
particular chapter freely online.

Thanks,
Bastiaan.