;;; dired.el --- directory-browsing commands
-;; Copyright (C) 1985, 86, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 86, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>
;; Maintainer: FSF
(or dir-or-list (setq dir-or-list default-directory))
;; This loses the distinction between "/foo/*/" and "/foo/*" that
;; some shells make:
- (let (dirname)
+ (let (dirname initially-was-dirname)
(if (consp dir-or-list)
(setq dirname (car dir-or-list))
(setq dirname dir-or-list))
+ (setq initially-was-dirname
+ (string= (file-name-as-directory dirname) dirname))
(setq dirname (abbreviate-file-name
(expand-file-name (directory-file-name dirname))))
(if find-file-visit-truename
(setq dirname (file-truename dirname)))
- (if (file-directory-p dirname)
- (setq dirname (file-name-as-directory dirname)))
+ ;; If the argument was syntactically a directory name not a file name,
+ ;; or if it happens to name a file that is a directory,
+ ;; convert it syntactically to a directory name.
+ ;; The reason for checking initially-was-dirname
+ ;; and not just file-directory-p
+ ;; is that file-directory-p is slow over ftp.
+ (if (or initially-was-dirname (file-directory-p dirname))
+ (setq dirname (file-name-as-directory dirname)))
(if (consp dir-or-list)
(setq dir-or-list (cons dirname (cdr dir-or-list)))
(setq dir-or-list dirname))
"Directory has changed on disk; type \\[revert-buffer] to update Dired")))))
;; Else a new buffer
(setq default-directory
- (if (file-directory-p dirname)
- dirname
- (file-name-directory dirname)))
+ ;; We can do this unconditionally
+ ;; because dired-noselect ensures that the name
+ ;; is passed in directory name syntax
+ ;; if it was the name of a directory at all.
+ (file-name-directory dirname))
(or switches (setq switches dired-listing-switches))
(dired-mode dirname switches)
(if mode (funcall mode))
;; killed buffer, it is removed from this list.
"Alist of expanded directories and their associated dired buffers.")
-(defun dired-buffers-for-dir (dir)
+(defun dired-buffers-for-dir (dir &optional file)
;; Return a list of buffers that dired DIR (top level or in-situ subdir).
+;; If FILE is non-nil, include only those whose wildcard pattern (if any)
+;; matches FILE.
;; The list is in reverse order of buffer creation, most recent last.
;; As a side effect, killed dired buffers for DIR are removed from
;; dired-buffers.
(setq dir (file-name-as-directory dir))
- (let ((alist dired-buffers) result elt buf)
+ (let ((alist dired-buffers) result elt buf pattern)
(while alist
(setq elt (car alist)
buf (cdr elt))
(if (buffer-name buf)
(if (dired-in-this-tree dir (car elt))
- (if (assoc dir (save-excursion
- (set-buffer buf)
- dired-subdir-alist))
- (setq result (cons buf result))))
+ (with-current-buffer buf
+ (and (assoc dir dired-subdir-alist)
+ (or (null file)
+ (let ((wildcards
+ (file-name-nondirectory dired-directory)))
+ (or (= 0 (length wildcards))
+ (string-match (dired-glob-regexp wildcards)
+ file))))
+ (setq result (cons buf result)))))
;; else buffer is killed - clean up:
(setq dired-buffers (delq elt dired-buffers)))
(setq alist (cdr alist)))
result))
+(defun dired-glob-regexp (pattern)
+ "Convert glob-pattern PATTERN to a regular expression."
+ (let ((matched-in-pattern 0) ;; How many chars of PATTERN we've handled.
+ regexp)
+ (while (string-match "[[?*]" pattern matched-in-pattern)
+ (let ((op-end (match-end 0))
+ (next-op (aref pattern (match-beginning 0))))
+ (setq regexp (concat regexp
+ (regexp-quote
+ (substring pattern matched-in-pattern
+ (match-beginning 0)))))
+ (cond ((= next-op ??)
+ (setq regexp (concat regexp "."))
+ (setq matched-in-pattern op-end))
+ ((= next-op ?\[)
+ ;; Fails to handle ^ yet ????
+ (let* ((set-start (match-beginning 0))
+ (set-cont
+ (if (= (aref pattern (1+ set-start)) ?^)
+ (+ 3 set-start)
+ (+ 2 set-start)))
+ (set-end (string-match "]" pattern set-cont))
+ (set (substring pattern set-start (1+ set-end))))
+ (setq regexp (concat regexp set))
+ (setq matched-in-pattern (1+ set-end))))
+ ((= next-op ?*)
+ (setq regexp (concat regexp ".*"))
+ (setq matched-in-pattern op-end)))))
+ (concat "\\`"
+ regexp
+ (regexp-quote
+ (substring pattern matched-in-pattern))
+ "\\'")))
+
+
+
(defun dired-advertise ()
;;"Advertise in variable `dired-buffers' that we dired `default-directory'."
;; With wildcards we actually advertise too much.