splitpath to match joinpath

[oxinabox]

Roughly speaking
joinpath(args...)=join(args, '/')
plus some magic to let it properly handle cases like joinpath("a/", "b")=="a/b"
(I know it actually isn't implemented much like that)

Analogously we should have its inverse
Roughly:
splitpath(arg)=split(arg, '/', keep=false)

so splitpath("a/b/c.txt")==["a", "b", "c.txt"].

I have added to my project:

julia> function splitpath(path::AbstractString)
       ret=String[]
       while(true)
       path, lastpart = splitdir(path)
       length(lastpart)>0 && unshift!(ret, lastpart)
       length(path)==0 && break
       end
       return ret
       end
splitpath (generic function with 1 method)

julia> splitpath("a/b/c")
3-element Array{String,1}:
 "a"
 "b"
 "c"

julia> splitpath("a/b/c/")
3-element Array{String,1}:
 "a"
 "b"
 "c"

julia> splitpath("a/b//c/")
3-element Array{String,1}:
 "a"
 "b"
 "c"

Though I am not sure of the best way to do this

[StefanKarpinski]

I agree that we should have this – I wanted it myself recently. Not sure if keep is necessary.

[rfourquet]

Closed by #28156.