A very small and simple collection of C++ functions for manipulating POSIX pathnames. It operates on the honor system and does not make any file system related system calls or perform Dot-Dot resolution. It's just string munging.
join(paths...) works as you would expect:
pathname::join("/home", "penguin") -> "/home/penguin"
pathname::join("data", "tmp", "file") -> "data/tmp/file"
pathname::join("data/", "/tmp/", "/file") -> "data/tmp/file"
this is not a surprise:
pathname::is_absolute("/tmp") -> true
pathname::is_absolute("tmp") -> false
dir(path) and base(path) are similar to the dirname and basename utilities except that the functions consider a trailing slash to indicate a directory name, unlike dirname and basename (I will never, ever understand this):
pathname::dir("/home/") -> "/home"
pathname::dir("/data/tmp/file") -> "/data/tmp"
pathname::dir("/") -> "/"
pathname::base("/home/") -> "."
pathname::base("/data/tmp/file") -> "file"
pathname::base("/") -> "/"
(If you take the base of a directory other than root, and join it with a file, the result is ./file)