lispdoc - results for directory-pathname-p

(asdf:directory-pathname-p pathname)
Function: Does PATHNAME represent a directory? A directory-pathname is a pathname _without_ a filename. The three ways that the filename components can be missing are for it to be NIL, :UNSPECIFIC or the empty string. Note that this does _not_ check to see that PATHNAME points to an actually-existing directory.
(cl-fad:directory-pathname-p pathspec)
Function: Returns NIL if PATHSPEC (a pathname designator) does not designate a directory, PATHSPEC otherwise. It is irrelevant whether file or directory designated by PATHSPEC does actually exist.