Problem with std.array(std.regex.splitter())

[bearophile]

Jonathan M Davis:
> Well, the requirement for save() being part of a forward range is fairly recent, 
> and a bunch of ranges which are supposed to be forward ranges don't have them 
> even though they're supposed to. The change was made fairly close to the release 
> of 2.047, I believe, and it was missed for many ranges. It's mostly if not 
> entirely fixed in svn. Actually, if I try and compile Bearophile's code on my 
> machine (which has a fairly recent version of phobos), it compiles just fine.

I have tried the latest beta and indeed it works, thank you.
Where can I find information about the purposes and meaning of save()? TDPL?

Bye,
bearophile