code.delx.au - gnu-emacs/blob - lisp/uniquify.el

   1 ;;; uniquify.el --- unique buffer names dependent on file name -*- lexical-binding: t -*-
   2
   3 ;; Copyright (C) 1989, 1995-1997, 2001-2012 Free Software Foundation, Inc.
   4
   5 ;; Author: Dick King <king@reasoning.com>
   6 ;; Maintainer: FSF
   7 ;; Keywords: files
   8 ;; Created: 15 May 86
   9 ;; Package: emacs
  10
  11 ;; This file is part of GNU Emacs.
  12
  13 ;; GNU Emacs is free software: you can redistribute it and/or modify
  14 ;; it under the terms of the GNU General Public License as published by
  15 ;; the Free Software Foundation, either version 3 of the License, or
  16 ;; (at your option) any later version.
  17
  18 ;; GNU Emacs is distributed in the hope that it will be useful,
  19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ;; GNU General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  25
  26 ;;; Commentary:
  27
  28 ;; Emacs's standard method for making buffer names unique adds <2>, <3>,
  29 ;; etc. to the end of (all but one of) the buffers.  This file replaces
  30 ;; that behavior, for buffers visiting files and dired buffers, with a
  31 ;; uniquification that adds parts of the file name until the buffer names
  32 ;; are unique.  For instance, buffers visiting /u/mernst/tmp/Makefile and
  33 ;; /usr/projects/zaphod/Makefile would be named Makefile|tmp and
  34 ;; Makefile|zaphod, respectively (instead of Makefile and Makefile<2>).
  35 ;; Other buffer name styles are also available.
  36
  37 ;; To use this file, do (require 'uniquify)
  38 ;; and set uniquify-buffer-name-style to one of its non-nil alternative values.
  39
  40 ;; For other options, see "User-visible variables", below.
  41
  42 ;; A version of uniquify.el that works under Emacs 18, Emacs 19, XEmacs,
  43 ;; and InfoDock is available from the maintainer.
  44
  45 ;;; Change Log:
  46
  47 ;; Originally by Dick King <king@reasoning.com> 15 May 86
  48 ;; Converted for Emacs 18 by Stephen Gildea <gildea@stop.mail-abuse.org>
  49 ;; Make uniquify-min-dir-content 0 truly non-invasive.  gildea 23 May 89
  50 ;; Some cleanup.  uniquify-min-dir-content default 0.  gildea 01 Jun 89
  51 ;; Don't rename to "".  Michael Ernst <mernst@theory.lcs.mit.edu> 15 Jun 94
  52 ;; Add kill-buffer-hook.  Kenneth Manheimer <ken.manheimer@nist.gov> 09 May 95
  53 ;; Add advice for rename-buffer and create-file-buffer, handle dired buffers,
  54 ;;  kill-buffer-rationalize-buffer-names-p, documentation.  mernst 24 May 95
  55 ;; Remove free variables, fix typos.  mernst 5 Jun 95
  56 ;; Efficiently support Emacs 19.27 & earlier.  ken.manheimer, mernst 10 Jun 95
  57 ;; Rename user options to "uniquify-...", add uniquify-reverse-dir-content-p,
  58 ;;  add uniquify-ask-about-buffer-names-p.  king, mernst 13 Jun 95
  59 ;; Prefix functions by "uniquify-..."; rename mnemonic-buffer-names to
  60 ;;  uniquify-buffer-name-style; add 'forward and 'post-forward-angle-brackets
  61 ;;  styles; remove uniquify-reverse-dir-content-p; add
  62 ;;  uniquify-trailing-separator-p.  mernst 4 Aug 95
  63 ;; Don't call expand-file-name on nil.  mernst 7 Jan 96
  64 ;; Check whether list-buffers-directory is bound.  mernst 11 Oct 96
  65 ;; Ignore non-file non-dired buffers. Colin Rafferty <craffert@ml.com> 3 Mar 97
  66 ;; Use last component, not "", for file name of directories.  mernst 27 Jun 97
  67 ;; Use directory-file-name; code cleanup.  mernst 6 Sep 97
  68 ;; Add uniquify-ignore-buffers-re.
  69 ;;  Andre Srinivasan <andre@visigenic.com> 9 Sep 97
  70 ;; Add uniquify-list-buffers-directory-modes
  71 ;;   Stefan Monnier <monnier@cs.yale.edu> 17 Nov 2000
  72 ;; Algorithm and data structure changed to reduce consing with lots of buffers
  73 ;;   Francesco Potortì <pot@gnu.org> (ideas by rms and monnier) 2001-07-18
  74
  75 ;; Valuable feedback was provided by
  76 ;; Paul Smith <psmith@baynetworks.com>,
  77 ;; Alastair Burt <burt@dfki.uni-kl.de>,
  78 ;; Bob Weiner <weiner@footloose.sps.mot.com>,
  79 ;; Albert L. Ting <alt@vlibs.com>,
  80 ;; gyro@reasoning.com,
  81 ;; Bryan O'Sullivan <bos@eng.sun.com>.
  82
  83
  84 ;;; Code:
  85
  86 (eval-when-compile (require 'cl-lib))
  87
  88 ;;; User-visible variables
  89
  90 (defgroup uniquify nil
  91   "Unique buffer names dependent on file name."
  92   :group 'files)
  93
  94
  95 (defcustom uniquify-buffer-name-style nil
  96   "If non-nil, buffer names are uniquified with parts of directory name.
  97 The value determines the buffer name style and is one of `forward',
  98 `reverse', `post-forward', or `post-forward-angle-brackets'.
  99 For example, files `/foo/bar/mumble/name' and `/baz/quux/mumble/name'
 100 would have the following buffer names in the various styles:
 101   forward        bar/mumble/name  quux/mumble/name
 102   reverse        name\\mumble\\bar  name\\mumble\\quux
 103   post-forward   name|bar/mumble  name|quux/mumble
 104   post-forward-angle-brackets   name<bar/mumble>  name<quux/mumble>
 105   nil            name  name<2>
 106 Of course, the \"mumble\" part may be stripped as well, depending on the setting
 107 of `uniquify-strip-common-suffix'."
 108   :type '(radio (const forward)
 109                 (const reverse)
 110                 (const post-forward)
 111                 (const post-forward-angle-brackets)
 112                 (const :tag "standard Emacs behavior (nil)" nil))
 113   :require 'uniquify
 114   :group 'uniquify)
 115
 116 (defcustom uniquify-after-kill-buffer-p t
 117   "If non-nil, rerationalize buffer names after a buffer has been killed."
 118   :type 'boolean
 119   :group 'uniquify)
 120
 121 (defcustom uniquify-ask-about-buffer-names-p nil
 122   "If non-nil, permit user to choose names for buffers with same base file.
 123 If the user chooses to name a buffer, uniquification is preempted and no
 124 other buffer names are changed."
 125   :type 'boolean
 126   :group 'uniquify)
 127
 128 ;; The default value matches certain Gnus buffers.
 129 (defcustom uniquify-ignore-buffers-re nil
 130   "Regular expression matching buffer names that should not be uniquified.
 131 For instance, set this to \"^draft-[0-9]+$\" to avoid having uniquify rename
 132 draft buffers even if `uniquify-after-kill-buffer-p' is non-nil and the
 133 visited file name isn't the same as that of the buffer."
 134   :type '(choice (const :tag "Uniquify all buffers" nil) regexp)
 135   :group 'uniquify)
 136
 137 (defcustom uniquify-min-dir-content 0
 138   "Minimum number of directory name components included in buffer name."
 139   :type 'integer
 140   :group 'uniquify)
 141
 142 (defcustom uniquify-separator nil
 143   "String separator for buffer name components.
 144 When `uniquify-buffer-name-style' is `post-forward', separates
 145 base file name from directory part in buffer names (default \"|\").
 146 When `uniquify-buffer-name-style' is `reverse', separates all
 147 file name components (default \"\\\")."
 148   :type '(choice (const nil) string)
 149   :group 'uniquify)
 150
 151 (defcustom uniquify-trailing-separator-p nil
 152   "If non-nil, add a file name separator to dired buffer names.
 153 If `uniquify-buffer-name-style' is `forward', add the separator at the end;
 154 if it is `reverse', add the separator at the beginning; otherwise, this
 155 variable is ignored."
 156   :type 'boolean
 157   :group 'uniquify)
 158
 159 (defcustom uniquify-strip-common-suffix
 160   ;; Using it when uniquify-min-dir-content>0 doesn't make much sense.
 161   (eq 0 uniquify-min-dir-content)
 162   "If non-nil, strip common directory suffixes of conflicting files.
 163 E.g. if you open /a1/b/c/d and /a2/b/c/d, the buffer names will say
 164 \"d|a1\" and \"d|a2\" instead of \"d|a1/b/c\" and \"d|a2/b/c\".
 165 This can be handy when you have deep parallel hierarchies."
 166   :type 'boolean
 167   :group 'uniquify)
 168
 169 (defvar uniquify-list-buffers-directory-modes '(dired-mode cvs-mode vc-dir-mode)
 170   "List of modes for which uniquify should obey `list-buffers-directory'.
 171 That means that when `buffer-file-name' is set to nil, `list-buffers-directory'
 172 contains the name of the directory which the buffer is visiting.")
 173
 174 ;;; Utilities
 175
 176 ;; uniquify-fix-list data structure
 177 (cl-defstruct (uniquify-item
 178             (:constructor nil) (:copier nil)
 179             (:constructor uniquify-make-item
 180              (base dirname buffer &optional proposed)))
 181   base dirname buffer proposed)
 182
 183 ;; Internal variables used free
 184 (defvar uniquify-possibly-resolvable nil)
 185
 186 (defvar-local uniquify-managed nil
 187   "Non-nil if the name of this buffer is managed by uniquify.
 188 It actually holds the list of `uniquify-item's corresponding to the conflict.")
 189 (put 'uniquify-managed 'permanent-local t)
 190
 191 ;; Used in desktop.el to save the non-uniquified buffer name
 192 (defun uniquify-buffer-base-name ()
 193   "Return the base name of the current buffer.
 194 Return nil if the buffer is not managed by uniquify."
 195   (and uniquify-managed
 196        (uniquify-item-base (car uniquify-managed))))
 197
 198 ;;; Main entry point.
 199
 200 (defun uniquify-rationalize-file-buffer-names (base dirname newbuf)
 201   "Make file buffer names unique by adding segments from file name.
 202 If `uniquify-min-dir-content' > 0, always pulls that many
 203 file name elements.
 204 Arguments BASE, DIRNAME, and NEWBUF specify the new buffer that causes
 205 this rationalization."
 206   (interactive
 207    (list (if uniquify-managed
 208              (uniquify-item-base (car uniquify-managed)) (buffer-name))
 209          (uniquify-buffer-file-name (current-buffer))
 210          (current-buffer)))
 211   ;; Make sure we don't get confused by outdated uniquify-managed info in
 212   ;; this buffer.
 213   (with-current-buffer newbuf (setq uniquify-managed nil))
 214   (when dirname
 215     (setq dirname (expand-file-name (directory-file-name dirname)))
 216     (let ((fix-list (list (uniquify-make-item base dirname newbuf)))
 217           items)
 218       (dolist (buffer (buffer-list))
 219         (when (and (not (and uniquify-ignore-buffers-re
 220                              (string-match uniquify-ignore-buffers-re
 221                                            (buffer-name buffer))))
 222                    ;; Only try to rename buffers we actually manage.
 223                    (setq items (buffer-local-value 'uniquify-managed buffer))
 224                    (equal base (uniquify-item-base (car items)))
 225                    ;; Don't re-add stuff we already have.  Actually this
 226                    ;; whole `and' test should only match at most once.
 227                    (not (memq (car items) fix-list)))
 228           (unless (cdr items)
 229             ;; If there was no conflict, the buffer-name is equal to the
 230             ;; base-name and we may have missed a rename-buffer because
 231             ;; of code like in set-visited-file-name:
 232             ;; (or (string= new-name (buffer-name)) (rename-buffer new-name t))
 233             ;; So we need to refresh the dirname of the uniquify-item.
 234             (setf (uniquify-item-dirname (car items))
 235                   (uniquify-buffer-file-name
 236                    (uniquify-item-buffer (car items))))
 237             ;; This shouldn't happen, but maybe there's no dirname any more.
 238             (unless (uniquify-item-dirname (car items))
 239               (with-current-buffer (uniquify-item-buffer (car items))
 240                 (setq uniquify-managed nil))
 241               (setq items nil)))
 242           ;; In case we missed some calls to kill-buffer, there may be dead
 243           ;; buffers in uniquify-managed, so filter them out.
 244           (setq items
 245                 (delq nil (mapcar
 246                            (lambda (item)
 247                              (if (buffer-live-p (uniquify-item-buffer item))
 248                                  item))
 249                            items)))
 250           (setq fix-list (append fix-list items))))
 251       ;; selects buffers whose names may need changing, and others that
 252       ;; may conflict, then bring conflicting names together
 253       (uniquify-rationalize fix-list))))
 254
 255 ;; uniquify's version of buffer-file-name; result never contains trailing slash
 256 (defun uniquify-buffer-file-name (buffer)
 257   "Return name of directory, file BUFFER is visiting, or nil if none.
 258 Works on ordinary file-visiting buffers and buffers whose mode is mentioned
 259 in `uniquify-list-buffers-directory-modes', otherwise returns nil."
 260   (with-current-buffer buffer
 261     (let ((filename
 262            (or buffer-file-name
 263                (if (memq major-mode uniquify-list-buffers-directory-modes)
 264                    list-buffers-directory))))
 265       (when filename
 266         (directory-file-name
 267          (file-name-directory
 268           (expand-file-name
 269            (directory-file-name filename))))))))
 270
 271 (defun uniquify-rerationalize-w/o-cb (fix-list)
 272   "Re-rationalize the buffers in FIX-LIST, but ignoring `current-buffer'."
 273   (let ((new-fix-list nil))
 274     (dolist (item fix-list)
 275       (let ((buf (uniquify-item-buffer item)))
 276         (unless (or (eq buf (current-buffer)) (not (buffer-live-p buf)))
 277           (push item new-fix-list))))
 278     (when new-fix-list
 279       (uniquify-rationalize new-fix-list))))
 280
 281 (defun uniquify-rationalize (fix-list)
 282   ;; Set up uniquify to re-rationalize after killing/renaming
 283   ;; if there is a conflict.
 284   (dolist (item fix-list)
 285     (with-current-buffer (uniquify-item-buffer item)
 286       ;; Refresh the dirnames and proposed names.
 287       (setf (uniquify-item-proposed item)
 288             (uniquify-get-proposed-name (uniquify-item-base item)
 289                                         (uniquify-item-dirname item)))
 290       (setq uniquify-managed fix-list)))
 291   ;; Strip any shared last directory names of the dirname.
 292   (when (and (cdr fix-list) uniquify-strip-common-suffix)
 293     (let ((strip t))
 294       (while (let* ((base (file-name-nondirectory
 295                            (uniquify-item-dirname (car fix-list))))
 296                     (items fix-list))
 297                (when (> (length base) 0)
 298                  (while (and strip items)
 299                    (unless (equal base (file-name-nondirectory
 300                                         (uniquify-item-dirname (pop items))))
 301                      (setq strip nil)))
 302                  strip))
 303         ;; It's all the same => strip.
 304         (dolist (item (prog1 fix-list (setq fix-list nil)))
 305           ;; Create new items because the old ones are kept (with the true
 306           ;; `dirname') for later rerationalizing.
 307           (push (uniquify-make-item (uniquify-item-base item)
 308                                     (let ((f (file-name-directory
 309                                               (uniquify-item-dirname item))))
 310                                       (and f (directory-file-name f)))
 311                                     (uniquify-item-buffer item)
 312                                     (uniquify-item-proposed item))
 313                 fix-list)))))
 314   ;; If uniquify-min-dir-content is 0, this will end up just
 315   ;; passing fix-list to uniquify-rationalize-conflicting-sublist.
 316   (uniquify-rationalize-a-list fix-list))
 317
 318 (defun uniquify-item-greaterp (item1 item2)
 319   (string-lessp (uniquify-item-proposed item2)
 320                 (uniquify-item-proposed item1)))
 321
 322 (defun uniquify-rationalize-a-list (fix-list &optional depth)
 323   (unless depth (setq depth uniquify-min-dir-content))
 324   (let (conflicting-sublist     ; all elements have the same proposed name
 325         (old-proposed "")
 326         proposed)
 327     ;; Divide fix-list into items with same proposed names and pass them
 328     ;; to uniquify-rationalize-conflicting-sublist.
 329     (dolist (item (sort (copy-sequence fix-list) 'uniquify-item-greaterp))
 330       (setq proposed (uniquify-item-proposed item))
 331       (unless (equal proposed old-proposed)
 332         (uniquify-rationalize-conflicting-sublist conflicting-sublist
 333                                                   old-proposed depth)
 334         (setq conflicting-sublist nil))
 335       (push item conflicting-sublist)
 336       (setq old-proposed proposed))
 337     (uniquify-rationalize-conflicting-sublist conflicting-sublist
 338                                               old-proposed depth)))
 339
 340 (defun uniquify-get-proposed-name (base dirname &optional depth)
 341   (unless depth (setq depth uniquify-min-dir-content))
 342   (cl-assert (equal (directory-file-name dirname) dirname)) ;No trailing slash.
 343
 344   ;; Distinguish directories by adding extra separator.
 345   (if (and uniquify-trailing-separator-p
 346            (file-directory-p (expand-file-name base dirname))
 347            (not (string-equal base "")))
 348       (cond ((eq uniquify-buffer-name-style 'forward)
 349              (setq base (file-name-as-directory base)))
 350             ;; (setq base (concat base "/")))
 351             ((eq uniquify-buffer-name-style 'reverse)
 352              (setq base (concat (or uniquify-separator "\\") base)))))
 353
 354   (let ((extra-string nil)
 355         (n depth))
 356     (while (and (> n 0) dirname)
 357       (let ((file (file-name-nondirectory dirname)))
 358         (when (setq dirname (file-name-directory dirname))
 359           (setq dirname (directory-file-name dirname)))
 360         (setq n (1- n))
 361         (push (if (zerop (length file)) ;nil or "".
 362                   (prog1 (or (file-remote-p dirname) "")
 363                     (setq dirname nil)) ;Could be `dirname' iso "".
 364                 file)
 365               extra-string)))
 366     (when (zerop n)
 367       (if (and dirname extra-string
 368                (equal dirname (file-name-directory dirname)))
 369           ;; We're just before the root.  Let's add the leading / already.
 370           ;; With "/a/b"+"/c/d/b" this leads to "/a/b" and "d/b" but with
 371           ;; "/a/b"+"/c/a/b" this leads to "/a/b" and "a/b".
 372           (push "" extra-string))
 373       (setq uniquify-possibly-resolvable t))
 374
 375     (cond
 376      ((null extra-string) base)
 377      ((string-equal base "") ;Happens for dired buffers on the root directory.
 378       (mapconcat 'identity extra-string "/"))
 379      ((eq uniquify-buffer-name-style 'reverse)
 380       (mapconcat 'identity
 381                  (cons base (nreverse extra-string))
 382                  (or uniquify-separator "\\")))
 383      ((eq uniquify-buffer-name-style 'forward)
 384       (mapconcat 'identity (nconc extra-string (list base))
 385                  "/"))
 386      ((eq uniquify-buffer-name-style 'post-forward)
 387       (concat base (or uniquify-separator "|")
 388               (mapconcat 'identity extra-string "/")))
 389      ((eq uniquify-buffer-name-style 'post-forward-angle-brackets)
 390       (concat base "<" (mapconcat 'identity extra-string "/")
 391               ">"))
 392      (t (error "Bad value for uniquify-buffer-name-style: %s"
 393                uniquify-buffer-name-style)))))
 394
 395
 396 ;; Deal with conflicting-sublist, all of whose elements have identical
 397 ;; "base" components.
 398 (defun uniquify-rationalize-conflicting-sublist (conf-list old-name depth)
 399   (when conf-list
 400     (if (or (cdr conf-list)
 401             ;; Check that the proposed name doesn't conflict with some
 402             ;; existing buffer.
 403             (let ((buf (get-buffer old-name)))
 404               (and buf (not (eq buf (uniquify-item-buffer (car conf-list)))))))
 405         (when uniquify-possibly-resolvable
 406           (setq uniquify-possibly-resolvable nil
 407                 depth (1+ depth))
 408           (dolist (item conf-list)
 409             (setf (uniquify-item-proposed item)
 410                   (uniquify-get-proposed-name
 411                    (uniquify-item-base item)
 412                    (uniquify-item-dirname item)
 413                    depth)))
 414           (uniquify-rationalize-a-list conf-list depth))
 415       (unless (string= old-name "")
 416         (uniquify-rename-buffer (car conf-list) old-name)))))
 417
 418
 419 (defun uniquify-rename-buffer (item newname)
 420   (let ((buffer (uniquify-item-buffer item)))
 421     (unless (equal newname (buffer-name buffer))
 422       (with-current-buffer buffer
 423         (let ((uniquify-buffer-name-style nil)) ;Avoid hooks on rename-buffer.
 424           ;; Pass the `unique' arg, so the advice doesn't mark it as unmanaged.
 425           (rename-buffer newname t))))))
 426
 427 ;;; Hooks from the rest of Emacs
 428
 429 (defun uniquify-maybe-rerationalize-w/o-cb ()
 430   "Re-rationalize buffer names, ignoring current buffer."
 431   (and (cdr uniquify-managed)
 432        uniquify-buffer-name-style
 433        (uniquify-rerationalize-w/o-cb uniquify-managed)))
 434
 435 ;; Buffer deletion
 436 ;; Rerationalize after a buffer is killed, to reduce coinciding buffer names.
 437 ;; This mechanism uses `kill-buffer-hook', which runs *before* deletion, so
 438 ;; it calls `uniquify-rerationalize-w/o-cb' to rerationalize the buffer list
 439 ;; ignoring the current buffer (which is going to be deleted anyway).
 440 (defun uniquify-kill-buffer-function ()
 441   "Re-rationalize buffer names, ignoring current buffer.
 442 For use on `kill-buffer-hook'."
 443   (and uniquify-after-kill-buffer-p
 444        (uniquify-maybe-rerationalize-w/o-cb)))
 445
 446 ;; Ideally we'd like to add it buffer-locally, but that doesn't work
 447 ;; because kill-buffer-hook is not permanent-local :-(
 448 ;; FIXME kill-buffer-hook _is_ permanent-local in 22+.
 449 (add-hook 'kill-buffer-hook 'uniquify-kill-buffer-function)
 450
 451 ;; The logical place to put all this code is in generate-new-buffer-name.
 452 ;; It's written in C, so we would add a generate-new-buffer-name-function
 453 ;; which, if non-nil, would be called instead of the C.  One problem with
 454 ;; that is that generate-new-buffer-name takes a potential buffer name as
 455 ;; its argument -- not other information, such as what file the buffer will
 456 ;; visit.
 457
 458 ;; The below solution works because generate-new-buffer-name is called
 459 ;; only by rename-buffer (which, as of 19.29, is never called from C) and
 460 ;; generate-new-buffer, which is called only by Lisp functions
 461 ;; create-file-buffer and rename-uniquely.  Rename-uniquely generally
 462 ;; isn't used for buffers visiting files, so it's sufficient to hook
 463 ;; rename-buffer and create-file-buffer.  (Setting find-file-hook isn't
 464 ;; sufficient.)
 465
 466 (advice-add 'rename-buffer :around #'uniquify--rename-buffer-advice)
 467 (defun uniquify--rename-buffer-advice (rb-fun newname &optional unique &rest args)
 468   "Uniquify buffer names with parts of directory name."
 469   (let ((retval (apply rb-fun newname unique args)))
 470   (uniquify-maybe-rerationalize-w/o-cb)
 471     (if (null unique)
 472       ;; Mark this buffer so it won't be renamed by uniquify.
 473       (setq uniquify-managed nil)
 474     (when uniquify-buffer-name-style
 475       ;; Rerationalize w.r.t the new name.
 476       (uniquify-rationalize-file-buffer-names
 477          newname
 478        (uniquify-buffer-file-name (current-buffer))
 479        (current-buffer))
 480         (setq retval (buffer-name (current-buffer)))))
 481     retval))
 482
 483
 484 (advice-add 'create-file-buffer :around #'uniquify--create-file-buffer-advice)
 485 (defun uniquify--create-file-buffer-advice (cfb-fun filename &rest args)
 486   "Uniquify buffer names with parts of directory name."
 487   (let ((retval (apply cfb-fun filename args)))
 488   (if uniquify-buffer-name-style
 489         (let ((filename (expand-file-name (directory-file-name filename))))
 490         (uniquify-rationalize-file-buffer-names
 491          (file-name-nondirectory filename)
 492            (file-name-directory filename) retval)))
 493     retval))
 494
 495 ;;; The End
 496
 497 (defun uniquify-unload-function ()
 498   "Unload the uniquify library."
 499   (save-current-buffer
 500     (let ((buffers nil))
 501       (dolist (buf (buffer-list))
 502         (set-buffer buf)
 503         (when uniquify-managed
 504           (push (cons buf (uniquify-item-base (car uniquify-managed))) buffers)))
 505       (advice-remove 'rename-buffer #'uniquify--rename-buffer-advice)
 506       (advice-remove 'create-file-buffer #'uniquify--create-file-buffer-advice)
 507       (dolist (buf buffers)
 508         (set-buffer (car buf))
 509         (rename-buffer (cdr buf) t))))
 510   ;; continue standard unloading
 511   nil)
 512
 513 (provide 'uniquify)
 514
 515 ;;; uniquify.el ends here