Fix relative path w/ drive ("C:a"->["C:a"]), and empty path (""->[""]).

Author: NHDaly

base/path.jl

@@ -211,7 +211,9 @@ julia> splitpath("/home/myuser/example.jl")
 ```
 """
 function splitpath(p::String)
+    drive, p = splitdrive(p)
     out = String[]
+    isempty(p) && (pushfirst!(out,p))  # "" means the current directory.
     while !isempty(p)
         dir, base = splitdir(p)
         dir == p && (pushfirst!(out, dir); break)  # Reached root node.
@@ -220,6 +222,9 @@ function splitpath(p::String)
         end
         p = dir
     end
+    if !isempty(drive)  # Tack the drive back on to the first element.
+        out[1] = drive*out[1]  # Note that length(out) is always >= 1.
+    end
     return out
 end
 

test/path.jl

@@ -87,7 +87,7 @@
 
     @testset "splitpath" begin
         @test splitpath(joinpath("a","b","c")) == ["a", "b", "c"]
-        @test splitpath("") == []
+        @test splitpath("") == [""]
 
         @test splitpath(joinpath("cats are", "gr8t")) == ["cats are", "gr8t"]
         @test splitpath(joinpath("  ", " ")) == ["  ", " "]
@@ -106,13 +106,14 @@
             @test splitpath("C:\\\\") == ["C:\\"]
             @test splitpath("J:\\") == ["J:\\"]
             @test splitpath("C:") == ["C:"]
-            @test splitpath("C:a") == ["C:", "a"]
-            @test splitpath("C:a\\b") == ["C:", "a", "b"]
+            @test splitpath("C:a") == ["C:a"]
+            @test splitpath("C:a\\b") == ["C:a", "b"]
 
             @test splitpath("a\\") == ["a"]
             @test splitpath("a\\\\b\\\\") == ["a","b"]
             @test splitpath("a.dir\\b.txt") == ["a.dir", "b.txt"]
             @test splitpath("\\a\\b\\") == ["\\", "a","b"]
+            @test splitpath("\\\\a\\b") == ["\\", "a","b"]
 
             @test splitpath("/a/b\\c/d\\\\e") == ["/", "a", "b", "c", "d", "e"]
             @test splitpath("/\\/\\") == ["/"]