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bug#2341: absolute file name arg of `true-filename': should/must?
From: |
Juanma Barranquero |
Subject: |
bug#2341: absolute file name arg of `true-filename': should/must? |
Date: |
Mon, 16 Feb 2009 10:09:54 +0100 |
Package: emacs,documentation
According to true-filename's docstring:
Return the truename of filename, which should be absolute.
In (elisp)25.6.3 Truenames:
The function `file-truename' returns the truename of the file
FILENAME. The argument must be an absolute file name.
OTOH,
(file-truename "test") => "C:/emacs/test"
and some functions seem to use it as expecting that it expands the
argument. For example, `find-buffer-visiting':
(defun find-buffer-visiting (filename &optional predicate)
"..."
(let ((predicate (or predicate #'identity))
(truename (abbreviate-file-name (file-truename filename))))
;; ...
where the argument FILENAME of `find-buffer-visiting' is usually not
an absolute file name.
The current behavior seems to be: "SHOULD be an absolute filename; if
it is not, it will be expanded using `default-directory'." Is that
intended, and if so, shouldn't it be documented?
Juanma
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