(parent-dir "/home/sk/parent/ab.el")
memberi
"/home/sk/parent"
kemudian,
(parent-dir "/home/sk/parent")
memberi
"/home/sk"
Adakah fungsi elisp parent-diryang memberikan basepath untuk path file & path dir?
file-name-directory melakukan apa yang Anda minta.
Namun, (file-name-directory "/home/sk/parent/")(dengan trailing slash) mengembalikan direktori yang sama, bukan induknya.
Ini melakukan apa aku menebak Anda benar-benar ingin:
(file-name-directory (directory-file-name "/home/sk/parent/ab.el")) ; => "/home/sk/parent/"
(file-name-directory (directory-file-name "/home/sk/parent/")) ; => "/home/sk/"
(file-name-directory (directory-file-name "/home/sk/parent")) ; => "/home/sk/"Dan library Dired + menggunakan fungsi ini:
(defun diredp-parent-dir (file &optional relativep)
"Return the parent directory of FILE, or nil if none.
Optional arg RELATIVEP non-nil means return a relative name, that is,
just the parent component."
(let ((parent (file-name-directory (directory-file-name (expand-file-name file))))
relparent)
(when relativep
(setq relparent (file-name-nondirectory (directory-file-name parent))))
(and (not (equal parent file)) (or relparent parent))))(defun parent-directory (dir)
(unless (equal "/" dir)
(file-name-directory (directory-file-name dir))))Diambil dari https://stackoverflow.com/a/14096693/5103881