std.algorithm.splitter request

[Manu via Digitalmars-d]

I want a version of splitter that doesn't eat the sentinels.
I want to split AT the sentinels, but the sentinel should be the first
element of the bucket.

eg: assert(equal(splitter("hello  world", ' '), [ "hello", " ", " world" ]));

Note the weird behaviour since there are 2 spaces. More useful when
the data is not strings.