auto joiner(RoR, Separator)(RoR r, Separator sep)Lazily joins a range of ranges with a separator. The separator itself is a range. If a separator is not provided, then the ranges are joined directly without anything in between them (often called flatten in other languages).
r | An input range of input ranges to be joined. |
sep | A forward range of element(s) to serve as separators in the joined range. |
both outer and inner ranges of RoR are at least bidirectional ranges. Else if both outer and inner ranges of RoR are forward ranges, the returned range will be likewise. Otherwise it will be only an input range. The
is propagated if no separator is specified.
See_also:
chain, which chains a sequence of ranges with compatible elements
into a single range.
RoR are bidirectional and the joiner is
iterated from the back to the front, the separator will still be consumed from front to back, even if it is a bidirectional range too.
auto joiner(RoR)(RoR r) if (isInputRange!RoR && isInputRange!(Unqual!(ElementType!RoR)))Ditto