;; Keeping Dired buffers in sync with the filesystem and with each other
(defun dired-buffers-for-dir (dir &optional file)
-;; Return a list of buffers that dired DIR (top level or in-situ subdir).
+;; Return a list of buffers for 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)
- (while alist
- (setq elt (car alist)
- buf (cdr elt))
- (if (buffer-name buf)
- (if (dired-in-this-tree dir (car elt))
- (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:
+ (let (result buf)
+ (dolist (elt dired-buffers)
+ (setq buf (cdr elt))
+ (cond
+ ((null (buffer-name buf))
+ ;; Buffer is killed - clean up:
(setq dired-buffers (delq elt dired-buffers)))
- (setq alist (cdr alist)))
+ ((dired-in-this-tree dir (car elt))
+ (with-current-buffer buf
+ (and (assoc dir dired-subdir-alist)
+ (or (null file)
+ (if (stringp dired-directory)
+ (let ((wildcards (file-name-nondirectory
+ dired-directory)))
+ (or (= 0 (length wildcards))
+ (string-match (dired-glob-regexp wildcards)
+ file)))
+ (member (expand-file-name file dir)
+ (cdr dired-directory))))
+ (setq result (cons buf result)))))))
result))
(defun dired-glob-regexp (pattern)