Issues with Windows drive letters, absolute() and parent()

[ollbx]

In Windows, "c:" does not seem to be considered an absolute path:

require("plenary.path"):new("c:"):is_absolute()
-- returns: false
require("plenary.path"):new("c:"):absolute()
-- returns: the cwd

This changes, when a trailing \ is added:

require("plenary.path"):new("c:\\"):is_absolute()
-- returns: true
require("plenary.path"):new("c:\\"):absolute()
-- returns: "c:\\"

That may be fine (depending on definitions). However when using Path:parent(), no trailing slash is added, which leads to unexpected results:

require("plenary.path"):new("c:\\test\\"):parent().filename
-- returns: "c:"
require("plenary.path"):new("c:\\test\\"):parent():absolute()
-- returns: the cwd instead of "c:\\"

The solution seems to be to either make sure that parent() always appends a path separator (which would seem reasonable to me, to distinguish that the path is for a directory and not for a file) or "c:" would need to be detected as the filesystem root and handled accordingly by is_absolute() and absolute().

[Conni2461]

might also be fixed with this commit 4f71c0c now

[ollbx]

Yes the issue seems to be fixed for me.