From: Drew Adams <drew.adams@oracle.com>
To: Kaushal Modi <kaushal.modi@gmail.com>,
Emacs developers <emacs-devel@gnu.org>
Subject: RE: Default share/ and lisp/ directories?
Date: Tue, 20 Feb 2018 10:48:45 -0800 (PST) [thread overview]
Message-ID: <31b4fa70-3cbf-4d75-8d62-4f27c8272d49@default> (raw)
In-Reply-To: <CAFyQvY3Z_vcH2OY2CkpAw8FguOwqZqGdyozaSwM2ECK9T549zA@mail.gmail.com>
Suggestion: use functions for manipulating file/dir names.
> (let* ((bin-dir (when (and invocation-directory
> (file-exists-p invocation-directory))
> (file-truename invocation-directory)))
> (prefix-dir (when bin-dir
> (replace-regexp-in-string "bin/\\'" "" bin-dir)))
Use (file-name-directory (directory-file-name (expand-file-name file)))
More generally (from dired+.el):
(defun 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))))
> (when prefix-dir (concat prefix-dir "share/"))
Use (file-name-as-directory (expand-file-name "share" prefix-dir))
next prev parent reply other threads:[~2018-02-20 18:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-20 18:09 Default share/ and lisp/ directories? Kaushal Modi
2018-02-20 18:48 ` Drew Adams [this message]
2018-02-20 20:27 ` Kaushal Modi
2018-02-20 21:06 ` Noam Postavsky
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