Compatibility with EllipsisNotation

[mschauer]

I was wondering if .. can be shared between EllipsisNotation and Intervalsets via call overload:

type DotDot
end

const .. = DotDot
..(x,y) = dotdot(x,y)

[timholy]

Yep, that seems likely to work. Note you can also dispatch on function types:

julia> typeof(..)
IntervalSets.#..

julia> Base.getindex(A::AbstractArray, ::typeof(..)) = println("ellipsis")

julia> A = rand(3,3)
3×3 Array{Float64,2}:
 0.102141  0.733993  0.765183
 0.911817  0.185652  0.898025
 0.506637  0.125062  0.478347

julia> A[..]
ellipsis

Not sure if that's better, though.

If you put together a PR I would merge it.

[hyrodium]

The dependency on EllipsisNotation was removed, so I will reopen this issue.
#83

[hyrodium]

I think it would be nice to have a lightweight package DotDots.jl which defines DotDot struct.

struct DotDot <: Function end
const (..) = DotDot()

And both IntervalSets.jl and EllipsisNotation.jl should depend on DotDots.jl package, but this approach is a kind of type piracy..