lisp/ibuf-ext.el

   1 ;;; ibuf-ext.el --- extensions for ibuffer
   2
   3 ;; Copyright (C) 2000, 2001, 2002, 2003, 2004,
   4 ;;   2005, 2006, 2007 Free Software Foundation, Inc.
   5
   6 ;; Author: Colin Walters <walters@verbum.org>
   7 ;; Maintainer: John Paul Wallington <jpw@gnu.org>
   8 ;; Created: 2 Dec 2001
   9 ;; Keywords: buffer, convenience
  10
  11 ;; This file is part of GNU Emacs.
  12
  13 ;; This program is free software; you can redistribute it and/or
  14 ;; modify it under the terms of the GNU General Public License as
  15 ;; published by the Free Software Foundation; either version 3, or (at
  16 ;; your option) any later version.
  17
  18 ;; This program is distributed in the hope that it will be useful, but
  19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 ;; General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with this program ; see the file COPYING.  If not, write to
  25 ;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  26 ;; Boston, MA 02110-1301, USA.
  27
  28 ;;; Commentary:
  29
  30 ;; These functions should be automatically loaded when called, but you
  31 ;; can explicity (require 'ibuf-ext) in your ~/.emacs to have them
  32 ;; preloaded.
  33
  34 ;;; Code:
  35
  36 (require 'ibuffer)
  37
  38 (eval-when-compile
  39   (require 'ibuf-macs)
  40   (require 'cl))
  41
  42 ;;; Utility functions
  43 (defun ibuffer-delete-alist (key alist)
  44   "Delete all entries in ALIST that have a key equal to KEY."
  45   (let (entry)
  46     (while (setq entry (assoc key alist))
  47       (setq alist (delete entry alist)))
  48     alist))
  49
  50 ;; borrowed from Gnus
  51 (defun ibuffer-remove-duplicates (list)
  52   "Return a copy of LIST with duplicate elements removed."
  53   (let ((new nil)
  54         (tail list))
  55     (while tail
  56       (or (member (car tail) new)
  57           (setq new (cons (car tail) new)))
  58       (setq tail (cdr tail)))
  59     (nreverse new)))
  60
  61 (defun ibuffer-split-list (ibuffer-split-list-fn ibuffer-split-list-elts)
  62   (let ((hip-crowd nil)
  63         (lamers nil))
  64     (dolist (ibuffer-split-list-elt ibuffer-split-list-elts)
  65       (if (funcall ibuffer-split-list-fn ibuffer-split-list-elt)
  66           (push ibuffer-split-list-elt hip-crowd)
  67         (push ibuffer-split-list-elt lamers)))
  68     ;; Too bad Emacs Lisp doesn't have multiple values.
  69     (list (nreverse hip-crowd) (nreverse lamers))))
  70
  71 (defcustom ibuffer-never-show-predicates nil
  72   "A list of predicates (a regexp or function) for buffers not to display.
  73 If a regexp, then it will be matched against the buffer's name.
  74 If a function, it will be called with the buffer as an argument, and
  75 should return non-nil if this buffer should not be shown."
  76   :type '(repeat (choice regexp function))
  77   :require 'ibuf-ext
  78   :group 'ibuffer)
  79
  80 (defcustom ibuffer-always-show-predicates nil
  81   "A list of predicates (a regexp or function) for buffers to always display.
  82 If a regexp, then it will be matched against the buffer's name.
  83 If a function, it will be called with the buffer as an argument, and
  84 should return non-nil if this buffer should be shown.
  85 Note that buffers matching one of these predicates will be shown
  86 regardless of any active filters in this buffer."
  87   :type '(repeat (choice regexp function))
  88   :group 'ibuffer)
  89
  90 (defvar ibuffer-tmp-hide-regexps nil
  91   "A list of regexps which should match buffer names to not show.")
  92
  93 (defvar ibuffer-tmp-show-regexps nil
  94   "A list of regexps which should match buffer names to always show.")
  95
  96 (defvar ibuffer-auto-mode nil
  97   "If non-nil, Ibuffer auto-mode should be enabled for this buffer.
  98 Do not set this variable directly!  Use the function
  99 `ibuffer-auto-mode' instead.")
 100
 101 (defvar ibuffer-auto-buffers-changed nil)
 102
 103 (defcustom ibuffer-saved-filters '(("gnus"
 104                                     ((or (mode . message-mode)
 105                                          (mode . mail-mode)
 106                                          (mode . gnus-group-mode)
 107                                          (mode . gnus-summary-mode)
 108                                          (mode . gnus-article-mode))))
 109                                    ("programming"
 110                                     ((or (mode . emacs-lisp-mode)
 111                                          (mode . cperl-mode)
 112                                          (mode . c-mode)
 113                                          (mode . java-mode)
 114                                          (mode . idl-mode)
 115                                          (mode . lisp-mode)))))
 116
 117   "An alist of filter qualifiers to switch between.
 118
 119 This variable should look like ((\"STRING\" QUALIFIERS)
 120                                 (\"STRING\" QUALIFIERS) ...), where
 121 QUALIFIERS is a list of the same form as
 122 `ibuffer-filtering-qualifiers'.
 123 See also the variables `ibuffer-filtering-qualifiers',
 124 `ibuffer-filtering-alist', and the functions
 125 `ibuffer-switch-to-saved-filters', `ibuffer-save-filters'."
 126   :type '(repeat sexp)
 127   :group 'ibuffer)
 128
 129 (defvar ibuffer-filtering-qualifiers nil
 130   "A list like (SYMBOL . QUALIFIER) which filters the current buffer list.
 131 See also `ibuffer-filtering-alist'.")
 132
 133 ;; This is now frobbed by `define-ibuffer-filter'.
 134 (defvar ibuffer-filtering-alist nil
 135   "An alist of (SYMBOL DESCRIPTION FUNCTION) which describes a filter.
 136
 137 You most likely do not want to modify this variable directly; see
 138 `define-ibuffer-filter'.
 139
 140 SYMBOL is the symbolic name of the filter.  DESCRIPTION is used when
 141 displaying information to the user.  FUNCTION is given a buffer and
 142 the value of the qualifier, and returns non-nil if and only if the
 143 buffer should be displayed.")
 144
 145 (defcustom ibuffer-filter-format-alist nil
 146   "An alist which has special formats used when a filter is active.
 147 The contents of this variable should look like:
 148  ((FILTER (FORMAT FORMAT ...)) (FILTER (FORMAT FORMAT ...)) ...)
 149
 150 For example, suppose that when you add a filter for buffers whose
 151 major mode is `emacs-lisp-mode', you only want to see the mark and the
 152 name of the buffer.  You could accomplish that by adding:
 153  (mode ((mark \" \" name)))
 154 to this variable."
 155   :type '(repeat (list :tag "Association" (symbol :tag "Filter")
 156                        (list :tag "Formats" (repeat (sexp :tag "Format")))))
 157   :group 'ibuffer)
 158
 159 (defvar ibuffer-cached-filter-formats nil)
 160 (defvar ibuffer-compiled-filter-formats nil)
 161
 162 (defvar ibuffer-filter-groups nil
 163   "A list like ((\"NAME\" ((SYMBOL . QUALIFIER) ...) ...) which groups buffers.
 164 The SYMBOL should be one from `ibuffer-filtering-alist'.
 165 The QUALIFIER should be the same as QUALIFIER in
 166 `ibuffer-filtering-qualifiers'.")
 167
 168 (defcustom ibuffer-show-empty-filter-groups t
 169   "If non-nil, then show the names of filter groups which are empty."
 170   :type 'boolean
 171   :group 'ibuffer)
 172
 173 (defcustom ibuffer-saved-filter-groups nil
 174   "An alist of filtering groups to switch between.
 175
 176 This variable should look like ((\"STRING\" QUALIFIERS)
 177                                 (\"STRING\" QUALIFIERS) ...), where
 178 QUALIFIERS is a list of the same form as
 179 `ibuffer-filtering-qualifiers'.
 180
 181 See also the variables `ibuffer-filter-groups',
 182 `ibuffer-filtering-qualifiers', `ibuffer-filtering-alist', and the
 183 functions `ibuffer-switch-to-saved-filter-groups',
 184 `ibuffer-save-filter-groups'."
 185   :type '(repeat sexp)
 186   :group 'ibuffer)
 187
 188 (defvar ibuffer-hidden-filter-groups nil
 189   "A list of filtering groups which are currently hidden.")
 190
 191 (defvar ibuffer-filter-group-kill-ring nil)
 192
 193 (defcustom ibuffer-old-time 72
 194   "The number of hours before a buffer is considered \"old\"."
 195   :type '(choice (const :tag "72 hours (3 days)" 72)
 196                  (const :tag "48 hours (2 days)" 48)
 197                  (const :tag "24 hours (1 day)" 24)
 198                  (integer :tag "hours"))
 199   :group 'ibuffer)
 200
 201 (defcustom ibuffer-save-with-custom t
 202   "If non-nil, then use Custom to save interactively changed variables.
 203 Currently, this only applies to `ibuffer-saved-filters' and
 204 `ibuffer-saved-filter-groups'."
 205   :type 'boolean
 206   :group 'ibuffer)
 207
 208 (defun ibuffer-ext-visible-p (buf all &optional ibuffer-buf)
 209   (or
 210    (ibuffer-buf-matches-predicates buf ibuffer-tmp-show-regexps)
 211    (and (not
 212          (or
 213           (ibuffer-buf-matches-predicates buf ibuffer-tmp-hide-regexps)
 214           (ibuffer-buf-matches-predicates buf ibuffer-never-show-predicates)))
 215         (or all
 216             (not
 217              (ibuffer-buf-matches-predicates buf ibuffer-maybe-show-predicates)))
 218         (or ibuffer-view-ibuffer
 219             (and ibuffer-buf
 220                  (not (eq ibuffer-buf buf))))
 221         (or
 222          (ibuffer-included-in-filters-p buf ibuffer-filtering-qualifiers)
 223          (ibuffer-buf-matches-predicates buf ibuffer-always-show-predicates)))))
 224
 225 (defun ibuffer-auto-update-changed ()
 226   (when (frame-or-buffer-changed-p 'ibuffer-auto-buffers-changed)
 227     (mapcar #'(lambda (buf)
 228                 (ignore-errors
 229                   (with-current-buffer buf
 230                     (when (and ibuffer-auto-mode
 231                                (eq major-mode 'ibuffer-mode))
 232                       (ibuffer-update nil t)))))
 233             (buffer-list))))
 234
 235 ;;;###autoload
 236 (defun ibuffer-auto-mode (&optional arg)
 237   "Toggle use of Ibuffer's auto-update facility.
 238 With numeric ARG, enable auto-update if and only if ARG is positive."
 239   (interactive)
 240   (unless (eq major-mode 'ibuffer-mode)
 241     (error "This buffer is not in Ibuffer mode"))
 242   (set (make-local-variable 'ibuffer-auto-mode)
 243        (if arg
 244            (plusp arg)
 245          (not ibuffer-auto-mode)))
 246   (frame-or-buffer-changed-p 'ibuffer-auto-buffers-changed)
 247   (add-hook 'post-command-hook 'ibuffer-auto-update-changed)
 248   (ibuffer-update-mode-name))
 249
 250 ;;;###autoload
 251 (defun ibuffer-mouse-filter-by-mode (event)
 252   "Enable or disable filtering by the major mode chosen via mouse."
 253   (interactive "e")
 254   (ibuffer-interactive-filter-by-mode event))
 255
 256 ;;;###autoload
 257 (defun ibuffer-interactive-filter-by-mode (event-or-point)
 258   "Enable or disable filtering by the major mode at point."
 259   (interactive "d")
 260   (if (eventp event-or-point)
 261       (posn-set-point (event-end event-or-point))
 262     (goto-char event-or-point))
 263   (let ((buf (ibuffer-current-buffer)))
 264     (if (assq 'mode ibuffer-filtering-qualifiers)
 265         (setq ibuffer-filtering-qualifiers
 266               (ibuffer-delete-alist 'mode ibuffer-filtering-qualifiers))
 267       (ibuffer-push-filter (cons 'mode
 268                                 (with-current-buffer buf
 269                                   major-mode)))))
 270   (ibuffer-update nil t))
 271
 272 ;;;###autoload
 273 (defun ibuffer-mouse-toggle-filter-group (event)
 274   "Toggle the display status of the filter group chosen with the mouse."
 275   (interactive "e")
 276   (ibuffer-toggle-filter-group-1 (save-excursion
 277                                    (mouse-set-point event)
 278                                    (point))))
 279
 280 ;;;###autoload
 281 (defun ibuffer-toggle-filter-group ()
 282   "Toggle the display status of the filter group on this line."
 283   (interactive)
 284   (ibuffer-toggle-filter-group-1 (point)))
 285
 286 (defun ibuffer-toggle-filter-group-1 (posn)
 287   (let ((name (get-text-property posn 'ibuffer-filter-group-name)))
 288     (unless (stringp name)
 289       (error "No filtering group name present"))
 290     (if (member name ibuffer-hidden-filter-groups)
 291         (setq ibuffer-hidden-filter-groups
 292               (delete name ibuffer-hidden-filter-groups))
 293       (push name ibuffer-hidden-filter-groups))
 294     (ibuffer-update nil t)))
 295
 296 ;;;###autoload
 297 (defun ibuffer-forward-filter-group (&optional count)
 298   "Move point forwards by COUNT filtering groups."
 299   (interactive "P")
 300   (unless count
 301     (setq count 1))
 302   (when (> count 0)
 303     (when (get-text-property (point) 'ibuffer-filter-group-name)
 304       (goto-char (next-single-property-change
 305                   (point) 'ibuffer-filter-group-name
 306                   nil (point-max))))
 307     (goto-char (next-single-property-change
 308                 (point) 'ibuffer-filter-group-name
 309                 nil (point-max)))
 310     (ibuffer-forward-filter-group (1- count)))
 311   (ibuffer-forward-line 0))
 312
 313 ;;;###autoload
 314 (defun ibuffer-backward-filter-group (&optional count)
 315   "Move point backwards by COUNT filtering groups."
 316   (interactive "P")
 317   (unless count
 318     (setq count 1))
 319   (when (> count 0)
 320     (when (get-text-property (point) 'ibuffer-filter-group-name)
 321       (goto-char (previous-single-property-change
 322                   (point) 'ibuffer-filter-group-name
 323                   nil (point-min))))
 324     (goto-char (previous-single-property-change
 325                 (point) 'ibuffer-filter-group-name
 326                 nil (point-min)))
 327     (ibuffer-backward-filter-group (1- count)))
 328   (when (= (point) (point-min))
 329     (goto-char (point-max))
 330     (ibuffer-backward-filter-group 1))
 331   (ibuffer-forward-line 0))
 332
 333 ;;;###autoload (autoload 'ibuffer-do-shell-command-pipe "ibuf-ext")
 334 (define-ibuffer-op shell-command-pipe (command)
 335   "Pipe the contents of each marked buffer to shell command COMMAND."
 336   (:interactive "sPipe to shell command: "
 337    :opstring "Shell command executed on"
 338    :modifier-p nil)
 339   (shell-command-on-region
 340    (point-min) (point-max) command
 341    (get-buffer-create "* ibuffer-shell-output*")))
 342
 343 ;;;###autoload (autoload 'ibuffer-do-shell-command-pipe-replace "ibuf-ext")
 344 (define-ibuffer-op shell-command-pipe-replace (command)
 345   "Replace the contents of marked buffers with output of pipe to COMMAND."
 346   (:interactive "sPipe to shell command (replace): "
 347    :opstring "Buffer contents replaced in"
 348    :active-opstring "replace buffer contents in"
 349    :dangerous t
 350    :modifier-p t)
 351   (with-current-buffer buf
 352     (shell-command-on-region (point-min) (point-max)
 353                              command nil t)))
 354
 355 ;;;###autoload (autoload 'ibuffer-do-shell-command-file "ibuf-ext")
 356 (define-ibuffer-op shell-command-file (command)
 357   "Run shell command COMMAND separately on files of marked buffers."
 358   (:interactive "sShell command on buffer's file: "
 359    :opstring "Shell command executed on"
 360    :modifier-p nil)
 361   (shell-command (concat command " "
 362                          (shell-quote-argument
 363                           (if buffer-file-name
 364                               buffer-file-name
 365                             (make-temp-file
 366                              (substring (buffer-name) 0 (min 10 (length (buffer-name))))))))))
 367
 368 ;;;###autoload (autoload 'ibuffer-do-eval "ibuf-ext")
 369 (define-ibuffer-op eval (form)
 370   "Evaluate FORM in each of the buffers.
 371 Does not display the buffer during evaluation. See
 372 `ibuffer-do-view-and-eval' for that."
 373   (:interactive
 374    (list
 375     (read-from-minibuffer
 376      "Eval in buffers (form): "
 377      nil read-expression-map t 'read-expression-history))
 378    :opstring "evaluated in"
 379    :modifier-p :maybe)
 380   (eval form))
 381
 382 ;;;###autoload (autoload 'ibuffer-do-view-and-eval "ibuf-ext")
 383 (define-ibuffer-op view-and-eval (form)
 384   "Evaluate FORM while displaying each of the marked buffers.
 385 To evaluate a form without viewing the buffer, see `ibuffer-do-eval'."
 386   (:interactive
 387    (list
 388     (read-from-minibuffer
 389      "Eval viewing in buffers (form): "
 390      nil read-expression-map t 'read-expression-history))
 391    :opstring "evaluated in"
 392    :complex t
 393    :modifier-p :maybe)
 394   (let ((ibuffer-buf (current-buffer)))
 395     (unwind-protect
 396         (progn
 397           (switch-to-buffer buf)
 398           (eval form))
 399       (switch-to-buffer ibuffer-buf))))
 400
 401 ;;;###autoload (autoload 'ibuffer-do-rename-uniquely "ibuf-ext")
 402 (define-ibuffer-op rename-uniquely ()
 403   "Rename marked buffers as with `rename-uniquely'."
 404   (:opstring "renamed"
 405    :modifier-p t)
 406   (rename-uniquely))
 407
 408 ;;;###autoload (autoload 'ibuffer-do-revert "ibuf-ext")
 409 (define-ibuffer-op revert ()
 410   "Revert marked buffers as with `revert-buffer'."
 411   (:dangerous t
 412    :opstring "reverted"
 413    :active-opstring "revert"
 414    :modifier-p :maybe)
 415   (revert-buffer t t))
 416
 417 ;;;###autoload (autoload 'ibuffer-do-replace-regexp "ibuf-ext")
 418 (define-ibuffer-op replace-regexp (from-str to-str)
 419   "Perform a `replace-regexp' in marked buffers."
 420   (:interactive
 421    (let* ((from-str (read-from-minibuffer "Replace regexp: "))
 422           (to-str (read-from-minibuffer (concat "Replace " from-str
 423                                                 " with: "))))
 424      (list from-str to-str))
 425    :opstring "replaced in"
 426    :complex t
 427    :modifier-p :maybe)
 428   (save-window-excursion
 429     (switch-to-buffer buf)
 430     (save-excursion
 431       (goto-char (point-min))
 432       (let ((case-fold-search ibuffer-case-fold-search))
 433         (while (re-search-forward from-str nil t)
 434           (replace-match to-str))))
 435     t))
 436
 437 ;;;###autoload (autoload 'ibuffer-do-query-replace "ibuf-ext")
 438 (define-ibuffer-op query-replace (&rest args)
 439   "Perform a `query-replace' in marked buffers."
 440   (:interactive
 441    (query-replace-read-args "Query replace" t t)
 442    :opstring "replaced in"
 443    :complex t
 444    :modifier-p :maybe)
 445   (save-window-excursion
 446     (switch-to-buffer buf)
 447     (save-excursion
 448       (let ((case-fold-search ibuffer-case-fold-search))
 449         (goto-char (point-min))
 450         (apply #'query-replace args)))
 451     t))
 452
 453 ;;;###autoload (autoload 'ibuffer-do-query-replace-regexp "ibuf-ext")
 454 (define-ibuffer-op query-replace-regexp (&rest args)
 455   "Perform a `query-replace-regexp' in marked buffers."
 456   (:interactive
 457    (query-replace-read-args "Query replace regexp" t t)
 458    :opstring "replaced in"
 459    :complex t
 460    :modifier-p :maybe)
 461   (save-window-excursion
 462     (switch-to-buffer buf)
 463     (save-excursion
 464       (let ((case-fold-search ibuffer-case-fold-search))
 465         (goto-char (point-min))
 466         (apply #'query-replace-regexp args)))
 467     t))
 468
 469 ;;;###autoload (autoload 'ibuffer-do-print "ibuf-ext")
 470 (define-ibuffer-op print ()
 471   "Print marked buffers as with `print-buffer'."
 472   (:opstring "printed"
 473    :modifier-p nil)
 474   (print-buffer))
 475
 476 ;;;###autoload
 477 (defun ibuffer-included-in-filters-p (buf filters)
 478   (not
 479    (memq nil ;; a filter will return nil if it failed
 480          (mapcar
 481           ;; filter should be like (TYPE . QUALIFIER), or
 482           ;; (or (TYPE . QUALIFIER) (TYPE . QUALIFIER) ...)
 483           #'(lambda (qual)
 484               (ibuffer-included-in-filter-p buf qual))
 485           filters))))
 486
 487 (defun ibuffer-included-in-filter-p (buf filter)
 488   (if (eq (car filter) 'not)
 489       (not (ibuffer-included-in-filter-p-1 buf (cdr filter)))
 490     (ibuffer-included-in-filter-p-1 buf filter)))
 491
 492 (defun ibuffer-included-in-filter-p-1 (buf filter)
 493   (not
 494    (not
 495     (case (car filter)
 496       (or
 497        (memq t (mapcar #'(lambda (x)
 498                            (ibuffer-included-in-filter-p buf x))
 499                        (cdr filter))))
 500       (saved
 501        (let ((data
 502               (assoc (cdr filter)
 503                      ibuffer-saved-filters)))
 504          (unless data
 505            (ibuffer-filter-disable)
 506            (error "Unknown saved filter %s" (cdr filter)))
 507          (ibuffer-included-in-filters-p buf (cadr data))))
 508       (t
 509        (let ((filterdat (assq (car filter)
 510                               ibuffer-filtering-alist)))
 511          ;; filterdat should be like (TYPE DESCRIPTION FUNC)
 512          ;; just a sanity check
 513         (unless filterdat
 514           (ibuffer-filter-disable)
 515           (error "Undefined filter %s" (car filter)))
 516         (not
 517          (not
 518           (funcall (caddr filterdat)
 519                    buf
 520                    (cdr filter))))))))))
 521
 522 (defun ibuffer-generate-filter-groups (bmarklist &optional noempty nodefault)
 523   (let ((filter-group-alist (if nodefault
 524                                 ibuffer-filter-groups
 525                               (append ibuffer-filter-groups
 526                                       (list (cons "Default" nil))))))
 527 ;;     (dolist (hidden ibuffer-hidden-filter-groups)
 528 ;;       (setq filter-group-alist (ibuffer-delete-alist
 529 ;;                                 hidden filter-group-alist)))
 530     (let ((vec (make-vector (length filter-group-alist) nil))
 531           (i 0))
 532       (dolist (filtergroup filter-group-alist)
 533         (let ((filterset (cdr filtergroup)))
 534           (multiple-value-bind (hip-crowd lamers)
 535               (ibuffer-split-list (lambda (bufmark)
 536                                     (ibuffer-included-in-filters-p (car bufmark)
 537                                                                    filterset))
 538                                   bmarklist)
 539             (aset vec i hip-crowd)
 540             (incf i)
 541             (setq bmarklist lamers))))
 542       (let (ret)
 543         (dotimes (j i ret)
 544           (let ((bufs (aref vec j)))
 545             (unless (and noempty (null bufs))
 546               (push (cons (car (nth j filter-group-alist))
 547                           bufs)
 548                     ret))))))))
 549
 550 ;;;###autoload
 551 (defun ibuffer-filters-to-filter-group (name)
 552   "Make the current filters into a filtering group."
 553   (interactive "sName for filtering group: ")
 554   (when (null ibuffer-filtering-qualifiers)
 555     (error "No filters in effect"))
 556   (push (cons name ibuffer-filtering-qualifiers) ibuffer-filter-groups)
 557   (ibuffer-filter-disable))
 558
 559 ;;;###autoload
 560 (defun ibuffer-set-filter-groups-by-mode ()
 561   "Set the current filter groups to filter by mode."
 562   (interactive)
 563   (setq ibuffer-filter-groups
 564         (mapcar (lambda (mode)
 565                   (cons (format "%s" mode) `((mode . ,mode))))
 566                 (let ((modes
 567                        (ibuffer-remove-duplicates
 568                         (mapcar (lambda (buf)
 569                                   (with-current-buffer buf major-mode))
 570                                 (buffer-list)))))
 571                   (if ibuffer-view-ibuffer
 572                       modes
 573                     (delq 'ibuffer-mode modes)))))
 574   (ibuffer-update nil t))
 575
 576 ;;;###autoload
 577 (defun ibuffer-pop-filter-group ()
 578   "Remove the first filter group."
 579   (interactive)
 580   (when (null ibuffer-filter-groups)
 581     (error "No filter groups active"))
 582   (setq ibuffer-hidden-filter-groups
 583         (delete (pop ibuffer-filter-groups)
 584                 ibuffer-hidden-filter-groups))
 585   (ibuffer-update nil t))
 586
 587 (defun ibuffer-read-filter-group-name (msg &optional nodefault noerror)
 588   (when (and (not noerror) (null ibuffer-filter-groups))
 589     (error "No filter groups active"))
 590   ;; `ibuffer-generate-filter-groups' returns all non-hidden filter
 591   ;; groups, possibly excluding empty groups or Default.
 592   ;; We add `ibuffer-hidden-filter-groups' to the list, excluding
 593   ;; Default if necessary.
 594   (completing-read msg (nconc
 595                         (ibuffer-generate-filter-groups
 596                          (ibuffer-current-state-list)
 597                          (not ibuffer-show-empty-filter-groups)
 598                          nodefault)
 599                         (if nodefault
 600                             (remove "Default" ibuffer-hidden-filter-groups)
 601                           ibuffer-hidden-filter-groups))
 602                    nil t))
 603
 604 ;;;###autoload
 605 (defun ibuffer-decompose-filter-group (group)
 606   "Decompose the filter group GROUP into active filters."
 607   (interactive
 608    (list (ibuffer-read-filter-group-name "Decompose filter group: " t)))
 609   (let ((data (cdr (assoc group ibuffer-filter-groups))))
 610     (setq ibuffer-filter-groups (ibuffer-delete-alist
 611                                  group ibuffer-filter-groups)
 612           ibuffer-filtering-qualifiers data))
 613   (ibuffer-update nil t))
 614
 615 ;;;###autoload
 616 (defun ibuffer-clear-filter-groups ()
 617   "Remove all filter groups."
 618   (interactive)
 619   (setq ibuffer-filter-groups nil
 620         ibuffer-hidden-filter-groups nil)
 621   (ibuffer-update nil t))
 622
 623 (defun ibuffer-current-filter-groups-with-position ()
 624   (save-excursion
 625     (goto-char (point-min))
 626     (let ((pos nil)
 627           (result nil))
 628       (while (and (not (eobp))
 629                   (setq pos (next-single-property-change
 630                              (point) 'ibuffer-filter-group-name)))
 631         (goto-char pos)
 632         (push (cons (get-text-property (point) 'ibuffer-filter-group-name)
 633                     pos)
 634               result)
 635         (goto-char (next-single-property-change
 636                     pos 'ibuffer-filter-group-name)))
 637       (nreverse result))))
 638
 639 ;;;###autoload
 640 (defun ibuffer-jump-to-filter-group (name)
 641   "Move point to the filter group whose name is NAME."
 642   (interactive
 643    (list (ibuffer-read-filter-group-name "Jump to filter group: ")))
 644   (ibuffer-aif (assoc name (ibuffer-current-filter-groups-with-position))
 645       (goto-char (cdr it))
 646     (error "No filter group with name %s" name)))
 647
 648 ;;;###autoload
 649 (defun ibuffer-kill-filter-group (name)
 650   "Kill the filter group named NAME.
 651 The group will be added to `ibuffer-filter-group-kill-ring'."
 652   (interactive (list (ibuffer-read-filter-group-name "Kill filter group: " t)))
 653   (when (equal name "Default")
 654     (error "Can't kill default filter group"))
 655   (ibuffer-aif (assoc name ibuffer-filter-groups)
 656       (progn
 657         (push (copy-tree it) ibuffer-filter-group-kill-ring)
 658         (setq ibuffer-filter-groups (ibuffer-delete-alist
 659                                      name ibuffer-filter-groups))
 660         (setq ibuffer-hidden-filter-groups
 661               (delete name ibuffer-hidden-filter-groups)))
 662     (error "No filter group with name \"%s\"" name))
 663   (ibuffer-update nil t))
 664
 665 ;;;###autoload
 666 (defun ibuffer-kill-line (&optional arg interactive-p)
 667   "Kill the filter group at point.
 668 See also `ibuffer-kill-filter-group'."
 669   (interactive "P\np")
 670   (ibuffer-aif (save-excursion
 671                  (ibuffer-forward-line 0)
 672                  (get-text-property (point) 'ibuffer-filter-group-name))
 673       (progn
 674         (ibuffer-kill-filter-group it))
 675       (funcall (if interactive-p #'call-interactively #'funcall)
 676                #'kill-line arg)))
 677
 678 (defun ibuffer-insert-filter-group-before (newgroup group)
 679   (let* ((found nil)
 680          (pos (let ((groups (mapcar #'car ibuffer-filter-groups))
 681                     (res 0))
 682                 (while groups
 683                   (if (equal (car groups) group)
 684                       (setq found t
 685                             groups nil)
 686                     (incf res)
 687                     (setq groups (cdr groups))))
 688                 res)))
 689     (cond ((not found)
 690            (setq ibuffer-filter-groups
 691                  (nconc ibuffer-filter-groups (list newgroup))))
 692           ((zerop pos)
 693            (push newgroup ibuffer-filter-groups))
 694           (t
 695            (let ((cell (nthcdr pos ibuffer-filter-groups)))
 696              (setf (cdr cell) (cons (car cell) (cdr cell)))
 697              (setf (car cell) newgroup))))))
 698
 699 ;;;###autoload
 700 (defun ibuffer-yank ()
 701   "Yank the last killed filter group before group at point."
 702   (interactive)
 703   (ibuffer-yank-filter-group
 704    (or (get-text-property (point) 'ibuffer-filter-group-name)
 705        (get-text-property (point) 'ibuffer-filter-group)
 706        (error "No filter group at point"))))
 707
 708 ;;;###autoload
 709 (defun ibuffer-yank-filter-group (name)
 710   "Yank the last killed filter group before group named NAME."
 711   (interactive (list (ibuffer-read-filter-group-name
 712                         "Yank filter group before group: ")))
 713   (unless ibuffer-filter-group-kill-ring
 714     (error "The Ibuffer filter group kill-ring is empty"))
 715   (save-excursion
 716     (ibuffer-forward-line 0)
 717     (ibuffer-insert-filter-group-before (pop ibuffer-filter-group-kill-ring)
 718                                         name))
 719   (ibuffer-update nil t))
 720
 721 ;;;###autoload
 722 (defun ibuffer-save-filter-groups (name groups)
 723   "Save all active filter groups GROUPS as NAME.
 724 They are added to `ibuffer-saved-filter-groups'.  Interactively,
 725 prompt for NAME, and use the current filters."
 726   (interactive
 727    (if (null ibuffer-filter-groups)
 728        (error "No filter groups active")
 729      (list
 730       (read-from-minibuffer "Save current filter groups as: ")
 731       ibuffer-filter-groups)))
 732   (ibuffer-aif (assoc name ibuffer-saved-filter-groups)
 733       (setcdr it groups)
 734     (push (cons name groups) ibuffer-saved-filter-groups))
 735   (ibuffer-maybe-save-stuff)
 736   (ibuffer-update-mode-name))
 737
 738 ;;;###autoload
 739 (defun ibuffer-delete-saved-filter-groups (name)
 740   "Delete saved filter groups with NAME.
 741 They are removed from `ibuffer-saved-filter-groups'."
 742   (interactive
 743    (list
 744     (if (null ibuffer-saved-filter-groups)
 745         (error "No saved filter groups")
 746       (completing-read "Delete saved filter group: "
 747                        ibuffer-saved-filter-groups nil t))))
 748   (setq ibuffer-saved-filter-groups
 749         (ibuffer-delete-alist name ibuffer-saved-filter-groups))
 750   (ibuffer-maybe-save-stuff)
 751   (ibuffer-update nil t))
 752
 753 ;;;###autoload
 754 (defun ibuffer-switch-to-saved-filter-groups (name)
 755   "Set this buffer's filter groups to saved version with NAME.
 756 The value from `ibuffer-saved-filter-groups' is used."
 757   (interactive
 758    (list
 759     (if (null ibuffer-saved-filter-groups)
 760         (error "No saved filters")
 761       (completing-read "Switch to saved filter group: "
 762                        ibuffer-saved-filter-groups nil t))))
 763   (setq ibuffer-filter-groups (cdr (assoc name ibuffer-saved-filter-groups))
 764         ibuffer-hidden-filter-groups nil)
 765   (ibuffer-update nil t))
 766
 767 ;;;###autoload
 768 (defun ibuffer-filter-disable ()
 769   "Disable all filters currently in effect in this buffer."
 770   (interactive)
 771   (setq ibuffer-filtering-qualifiers nil)
 772   (let ((buf (ibuffer-current-buffer)))
 773     (ibuffer-update nil t)
 774     (when buf
 775       (ibuffer-jump-to-buffer (buffer-name buf)))))
 776
 777 ;;;###autoload
 778 (defun ibuffer-pop-filter ()
 779   "Remove the top filter in this buffer."
 780   (interactive)
 781   (when (null ibuffer-filtering-qualifiers)
 782     (error "No filters in effect"))
 783   (pop ibuffer-filtering-qualifiers)
 784   (let ((buf (ibuffer-current-buffer)))
 785     (ibuffer-update nil t)
 786     (when buf
 787       (ibuffer-jump-to-buffer (buffer-name buf)))))
 788
 789 (defun ibuffer-push-filter (qualifier)
 790   "Add QUALIFIER to `ibuffer-filtering-qualifiers'."
 791   (push qualifier ibuffer-filtering-qualifiers))
 792
 793 ;;;###autoload
 794 (defun ibuffer-decompose-filter ()
 795   "Separate the top compound filter (OR, NOT, or SAVED) in this buffer.
 796
 797 This means that the topmost filter on the filtering stack, which must
 798 be a complex filter like (OR [name: foo] [mode: bar-mode]), will be
 799 turned into two separate filters [name: foo] and [mode: bar-mode]."
 800   (interactive)
 801   (when (null ibuffer-filtering-qualifiers)
 802     (error "No filters in effect"))
 803   (let ((lim (pop ibuffer-filtering-qualifiers)))
 804     (case (car lim)
 805       (or
 806        (setq ibuffer-filtering-qualifiers (append
 807                                           (cdr lim)
 808                                           ibuffer-filtering-qualifiers)))
 809       (saved
 810        (let ((data
 811               (assoc (cdr lim)
 812                      ibuffer-saved-filters)))
 813          (unless data
 814            (ibuffer-filter-disable)
 815            (error "Unknown saved filter %s" (cdr lim)))
 816          (setq ibuffer-filtering-qualifiers (append
 817                                             (cadr data)
 818                                             ibuffer-filtering-qualifiers))))
 819       (not
 820        (push (cdr lim)
 821              ibuffer-filtering-qualifiers))
 822       (t
 823        (error "Filter type %s is not compound" (car lim)))))
 824   (ibuffer-update nil t))
 825
 826 ;;;###autoload
 827 (defun ibuffer-exchange-filters ()
 828   "Exchange the top two filters on the stack in this buffer."
 829   (interactive)
 830   (when (< (length ibuffer-filtering-qualifiers)
 831            2)
 832     (error "Need two filters to exchange"))
 833   (let ((first (pop ibuffer-filtering-qualifiers))
 834         (second (pop ibuffer-filtering-qualifiers)))
 835     (push first ibuffer-filtering-qualifiers)
 836     (push second ibuffer-filtering-qualifiers))
 837   (ibuffer-update nil t))
 838
 839 ;;;###autoload
 840 (defun ibuffer-negate-filter ()
 841   "Negate the sense of the top filter in the current buffer."
 842   (interactive)
 843   (when (null ibuffer-filtering-qualifiers)
 844     (error "No filters in effect"))
 845   (let ((lim (pop ibuffer-filtering-qualifiers)))
 846     (push (if (eq (car lim) 'not)
 847               (cdr lim)
 848             (cons 'not lim))
 849           ibuffer-filtering-qualifiers))
 850   (ibuffer-update nil t))
 851
 852 ;;;###autoload
 853 (defun ibuffer-or-filter (&optional reverse)
 854   "Replace the top two filters in this buffer with their logical OR.
 855 If optional argument REVERSE is non-nil, instead break the top OR
 856 filter into parts."
 857   (interactive "P")
 858   (if reverse
 859       (progn
 860         (when (or (null ibuffer-filtering-qualifiers)
 861                   (not (eq 'or (caar ibuffer-filtering-qualifiers))))
 862           (error "Top filter is not an OR"))
 863         (let ((lim (pop ibuffer-filtering-qualifiers)))
 864           (setq ibuffer-filtering-qualifiers
 865                 (nconc (cdr lim) ibuffer-filtering-qualifiers))))
 866     (when (< (length ibuffer-filtering-qualifiers) 2)
 867       (error "Need two filters to OR"))
 868     ;; If the second filter is an OR, just add to it.
 869     (let ((first (pop ibuffer-filtering-qualifiers))
 870           (second (pop ibuffer-filtering-qualifiers)))
 871       (if (eq 'or (car second))
 872           (push (nconc (list 'or first) (cdr second))
 873                 ibuffer-filtering-qualifiers)
 874         (push (list 'or first second)
 875               ibuffer-filtering-qualifiers))))
 876   (ibuffer-update nil t))
 877
 878 (defun ibuffer-maybe-save-stuff ()
 879   (when ibuffer-save-with-custom
 880     (if (fboundp 'customize-save-variable)
 881         (progn
 882           (customize-save-variable 'ibuffer-saved-filters
 883                                    ibuffer-saved-filters)
 884           (customize-save-variable 'ibuffer-saved-filter-groups
 885                                    ibuffer-saved-filter-groups))
 886       (message "Not saved permanently: Customize not available"))))
 887
 888 ;;;###autoload
 889 (defun ibuffer-save-filters (name filters)
 890   "Save FILTERS in this buffer with name NAME in `ibuffer-saved-filters'.
 891 Interactively, prompt for NAME, and use the current filters."
 892   (interactive
 893    (if (null ibuffer-filtering-qualifiers)
 894        (error "No filters currently in effect")
 895      (list
 896       (read-from-minibuffer "Save current filters as: ")
 897       ibuffer-filtering-qualifiers)))
 898   (ibuffer-aif (assoc name ibuffer-saved-filters)
 899       (setcdr it filters)
 900     (push (list name filters) ibuffer-saved-filters))
 901   (ibuffer-maybe-save-stuff)
 902   (ibuffer-update-mode-name))
 903
 904 ;;;###autoload
 905 (defun ibuffer-delete-saved-filters (name)
 906   "Delete saved filters with NAME from `ibuffer-saved-filters'."
 907   (interactive
 908    (list
 909     (if (null ibuffer-saved-filters)
 910         (error "No saved filters")
 911       (completing-read "Delete saved filters: "
 912                        ibuffer-saved-filters nil t))))
 913   (setq ibuffer-saved-filters
 914         (ibuffer-delete-alist name ibuffer-saved-filters))
 915   (ibuffer-maybe-save-stuff)
 916   (ibuffer-update nil t))
 917
 918 ;;;###autoload
 919 (defun ibuffer-add-saved-filters (name)
 920   "Add saved filters from `ibuffer-saved-filters' to this buffer's filters."
 921   (interactive
 922    (list
 923     (if (null ibuffer-saved-filters)
 924         (error "No saved filters")
 925       (completing-read "Add saved filters: "
 926                        ibuffer-saved-filters nil t))))
 927   (push (cons 'saved name) ibuffer-filtering-qualifiers)
 928   (ibuffer-update nil t))
 929
 930 ;;;###autoload
 931 (defun ibuffer-switch-to-saved-filters (name)
 932   "Set this buffer's filters to filters with NAME from `ibuffer-saved-filters'."
 933   (interactive
 934    (list
 935     (if (null ibuffer-saved-filters)
 936         (error "No saved filters")
 937       (completing-read "Switch to saved filters: "
 938                        ibuffer-saved-filters nil t))))
 939   (setq ibuffer-filtering-qualifiers (list (cons 'saved name)))
 940   (ibuffer-update nil t))
 941
 942 (defun ibuffer-format-filter-group-data (filter)
 943   (if (equal filter "Default")
 944       ""
 945     (concat "Filter:" (mapconcat #'ibuffer-format-qualifier
 946                                  (cdr (assq filter ibuffer-filter-groups))
 947                                  " "))))
 948
 949 (defun ibuffer-format-qualifier (qualifier)
 950   (if (eq (car-safe qualifier) 'not)
 951       (concat " [NOT" (ibuffer-format-qualifier-1 (cdr qualifier)) "]")
 952     (ibuffer-format-qualifier-1 qualifier)))
 953
 954 (defun ibuffer-format-qualifier-1 (qualifier)
 955   (case (car qualifier)
 956     (saved
 957      (concat " [filter: " (cdr qualifier) "]"))
 958     (or
 959      (concat " [OR" (mapconcat #'ibuffer-format-qualifier
 960                                (cdr qualifier) "") "]"))
 961     (t
 962      (let ((type (assq (car qualifier) ibuffer-filtering-alist)))
 963        (unless qualifier
 964          (error "Ibuffer: bad qualifier %s" qualifier))
 965        (concat " [" (cadr type) ": " (format "%s]" (cdr qualifier)))))))
 966
 967
 968 (defun ibuffer-list-buffer-modes ()
 969   "Create an alist of buffer modes currently in use.
 970 The list returned will be of the form (\"MODE-NAME\" . MODE-SYMBOL)."
 971   (let ((bufs (buffer-list))
 972         (modes)
 973         (this-mode))
 974     (while bufs
 975       (setq this-mode
 976             (with-current-buffer
 977                 (car bufs)
 978               major-mode)
 979             bufs (cdr bufs))
 980       (add-to-list
 981        'modes
 982        `(,(symbol-name this-mode) .
 983          ,this-mode)))
 984     modes))
 985
 986
 987 ;;; Extra operation definitions
 988
 989 ;;;###autoload (autoload 'ibuffer-filter-by-mode "ibuf-ext")
 990 (define-ibuffer-filter mode
 991   "Toggle current view to buffers with major mode QUALIFIER."
 992   (:description "major mode"
 993    :reader
 994    (intern
 995     (completing-read "Filter by major mode: " obarray
 996                      #'(lambda (e)
 997                          (string-match "-mode$"
 998                                        (symbol-name e)))
 999                      t
1000                      (let ((buf (ibuffer-current-buffer)))
1001                        (if (and buf (buffer-live-p buf))
1002                            (with-current-buffer buf
1003                              (symbol-name major-mode))
1004                          "")))))
1005   (eq qualifier (with-current-buffer buf major-mode)))
1006
1007 ;;;###autoload (autoload 'ibuffer-filter-by-used-mode "ibuf-ext")
1008 (define-ibuffer-filter used-mode
1009   "Toggle current view to buffers with major mode QUALIFIER.
1010 Called interactively, this function allows selection of modes
1011 currently used by buffers."
1012   (:description "major mode in use"
1013                 :reader
1014                 (intern
1015                  (completing-read "Filter by major mode: "
1016                                   (ibuffer-list-buffer-modes)
1017                                   nil
1018                                   t
1019                                   (let ((buf (ibuffer-current-buffer)))
1020                                     (if (and buf (buffer-live-p buf))
1021                                         (with-current-buffer buf
1022                                           (symbol-name major-mode))
1023                                       "")))))
1024   (eq qualifier (with-current-buffer buf major-mode)))
1025
1026 ;;;###autoload (autoload 'ibuffer-filter-by-name "ibuf-ext")
1027 (define-ibuffer-filter name
1028   "Toggle current view to buffers with name matching QUALIFIER."
1029   (:description "buffer name"
1030    :reader (read-from-minibuffer "Filter by name (regexp): "))
1031   (string-match qualifier (buffer-name buf)))
1032
1033 ;;;###autoload (autoload 'ibuffer-filter-by-filename "ibuf-ext")
1034 (define-ibuffer-filter filename
1035   "Toggle current view to buffers with filename matching QUALIFIER."
1036   (:description "filename"
1037    :reader (read-from-minibuffer "Filter by filename (regexp): "))
1038   (ibuffer-awhen (with-current-buffer buf
1039                    (or buffer-file-name
1040                        (and (boundp 'dired-directory)
1041                             (let ((dired-dir
1042                                    (if (stringp dired-directory)
1043                                        dired-directory
1044                                      (car dired-directory))))
1045                               (and dired-dir
1046                                    (expand-file-name dired-dir))))))
1047     (string-match qualifier it)))
1048
1049 ;;;###autoload (autoload 'ibuffer-filter-by-size-gt  "ibuf-ext")
1050 (define-ibuffer-filter size-gt
1051   "Toggle current view to buffers with size greater than QUALIFIER."
1052   (:description "size greater than"
1053    :reader
1054    (string-to-number (read-from-minibuffer "Filter by size greater than: ")))
1055   (> (with-current-buffer buf (buffer-size))
1056      qualifier))
1057
1058 ;;;###autoload (autoload 'ibuffer-filter-by-size-lt  "ibuf-ext")
1059 (define-ibuffer-filter size-lt
1060    "Toggle current view to buffers with size less than QUALIFIER."
1061   (:description "size less than"
1062    :reader
1063    (string-to-number (read-from-minibuffer "Filter by size less than: ")))
1064   (< (with-current-buffer buf (buffer-size))
1065      qualifier))
1066
1067 ;;;###autoload (autoload 'ibuffer-filter-by-content "ibuf-ext")
1068 (define-ibuffer-filter content
1069    "Toggle current view to buffers whose contents match QUALIFIER."
1070   (:description "content"
1071    :reader (read-from-minibuffer "Filter by content (regexp): "))
1072   (with-current-buffer buf
1073     (save-excursion
1074       (goto-char (point-min))
1075       (re-search-forward qualifier nil t))))
1076
1077 ;;;###autoload (autoload 'ibuffer-filter-by-predicate "ibuf-ext")
1078 (define-ibuffer-filter predicate
1079    "Toggle current view to buffers for which QUALIFIER returns non-nil."
1080   (:description "predicate"
1081    :reader (read-minibuffer "Filter by predicate (form): "))
1082   (with-current-buffer buf
1083     (eval qualifier)))
1084
1085 ;;; Sorting
1086
1087 ;;;###autoload
1088 (defun ibuffer-toggle-sorting-mode ()
1089   "Toggle the current sorting mode.
1090 Default sorting modes are:
1091  Recency - the last time the buffer was viewed
1092  Name - the name of the buffer
1093  Major Mode - the name of the major mode of the buffer
1094  Size - the size of the buffer"
1095   (interactive)
1096   (let ((modes (mapcar 'car ibuffer-sorting-functions-alist)))
1097     (add-to-list 'modes 'recency)
1098     (setq modes (sort modes 'string-lessp))
1099     (let ((next (or (car-safe (cdr-safe (memq ibuffer-sorting-mode modes)))
1100                     (car modes))))
1101       (setq ibuffer-sorting-mode next)
1102       (message "Sorting by %s" next)))
1103   (ibuffer-redisplay t))
1104
1105 ;;;###autoload
1106 (defun ibuffer-invert-sorting ()
1107   "Toggle whether or not sorting is in reverse order."
1108   (interactive)
1109   (setq ibuffer-sorting-reversep (not ibuffer-sorting-reversep))
1110   (message "Sorting order %s"
1111            (if ibuffer-sorting-reversep
1112                "reversed"
1113              "normal"))
1114   (ibuffer-redisplay t))
1115
1116 ;;;###autoload (autoload 'ibuffer-do-sort-by-major-mode "ibuf-ext")
1117 (define-ibuffer-sorter major-mode
1118   "Sort the buffers by major modes.
1119 Ordering is lexicographic."
1120   (:description "major mode")
1121   (string-lessp (downcase
1122                  (symbol-name (with-current-buffer
1123                                   (car a)
1124                                 major-mode)))
1125                 (downcase
1126                  (symbol-name (with-current-buffer
1127                                   (car b)
1128                                 major-mode)))))
1129
1130 ;;;###autoload (autoload 'ibuffer-do-sort-by-mode-name "ibuf-ext")
1131 (define-ibuffer-sorter mode-name
1132   "Sort the buffers by their mode name.
1133 Ordering is lexicographic."
1134   (:description "major mode name")
1135   (string-lessp (downcase
1136                   (with-current-buffer
1137                       (car a)
1138                     mode-name))
1139                 (downcase
1140                  (with-current-buffer
1141                      (car b)
1142                    mode-name))))
1143
1144 ;;;###autoload (autoload 'ibuffer-do-sort-by-alphabetic "ibuf-ext")
1145 (define-ibuffer-sorter alphabetic
1146   "Sort the buffers by their names.
1147 Ordering is lexicographic."
1148   (:description "buffer name")
1149   (string-lessp
1150    (buffer-name (car a))
1151    (buffer-name (car b))))
1152
1153 ;;;###autoload (autoload 'ibuffer-do-sort-by-size "ibuf-ext")
1154 (define-ibuffer-sorter size
1155  "Sort the buffers by their size."
1156   (:description "size")
1157   (< (with-current-buffer (car a)
1158        (buffer-size))
1159      (with-current-buffer (car b)
1160        (buffer-size))))
1161
1162 ;;; Functions to emulate bs.el
1163
1164 ;;;###autoload
1165 (defun ibuffer-bs-show ()
1166   "Emulate `bs-show' from the bs.el package."
1167   (interactive)
1168   (ibuffer t "*Ibuffer-bs*" '((filename . ".*")) nil t)
1169   (define-key (current-local-map) "a" 'ibuffer-bs-toggle-all))
1170
1171 (defun ibuffer-bs-toggle-all ()
1172   "Emulate `bs-toggle-show-all' from the bs.el package."
1173   (interactive)
1174   (if ibuffer-filtering-qualifiers
1175       (ibuffer-pop-filter)
1176     (progn (ibuffer-push-filter '(filename . ".*"))
1177            (ibuffer-update nil t))))
1178
1179 ;;; Handy functions
1180
1181 ;;;###autoload
1182 (defun ibuffer-add-to-tmp-hide (regexp)
1183   "Add REGEXP to `ibuffer-tmp-hide-regexps'.
1184 This means that buffers whose name matches REGEXP will not be shown
1185 for this Ibuffer session."
1186   (interactive
1187    (list
1188     (read-from-minibuffer "Never show buffers matching: "
1189                           (regexp-quote (buffer-name (ibuffer-current-buffer t))))))
1190   (push regexp ibuffer-tmp-hide-regexps))
1191
1192 ;;;###autoload
1193 (defun ibuffer-add-to-tmp-show (regexp)
1194   "Add REGEXP to `ibuffer-tmp-show-regexps'.
1195 This means that buffers whose name matches REGEXP will always be shown
1196 for this Ibuffer session."
1197   (interactive
1198    (list
1199     (read-from-minibuffer "Always show buffers matching: "
1200                           (regexp-quote (buffer-name (ibuffer-current-buffer t))))))
1201   (push regexp ibuffer-tmp-show-regexps))
1202
1203 ;;;###autoload
1204 (defun ibuffer-forward-next-marked (&optional count mark direction)
1205   "Move forward by COUNT marked buffers (default 1).
1206
1207 If MARK is non-nil, it should be a character denoting the type of mark
1208 to move by.  The default is `ibuffer-marked-char'.
1209
1210 If DIRECTION is non-nil, it should be an integer; negative integers
1211 mean move backwards, non-negative integers mean move forwards."
1212   (interactive "P")
1213   (unless count
1214     (setq count 1))
1215   (unless mark
1216     (setq mark ibuffer-marked-char))
1217   (unless direction
1218     (setq direction 1))
1219   ;; Skip the title
1220   (ibuffer-forward-line 0)
1221   (let ((opos (point))
1222         curmark)
1223     (ibuffer-forward-line direction)
1224     (while (not (or (= (point) opos)
1225                     (eq (setq curmark (ibuffer-current-mark))
1226                         mark)))
1227       (ibuffer-forward-line direction))
1228     (when (and (= (point) opos)
1229                (not (eq (ibuffer-current-mark) mark)))
1230       (error "No buffers with mark %c" mark))))
1231
1232 ;;;###autoload
1233 (defun ibuffer-backwards-next-marked (&optional count mark)
1234    "Move backwards by COUNT marked buffers (default 1).
1235
1236 If MARK is non-nil, it should be a character denoting the type of mark
1237 to move by.  The default is `ibuffer-marked-char'."
1238    (interactive "P")
1239    (ibuffer-forward-next-marked count mark -1))
1240
1241 ;;;###autoload
1242 (defun ibuffer-do-kill-lines ()
1243   "Hide all of the currently marked lines."
1244   (interactive)
1245   (if (= (ibuffer-count-marked-lines) 0)
1246       (message "No buffers marked; use 'm' to mark a buffer")
1247     (let ((count
1248            (ibuffer-map-marked-lines
1249             #'(lambda (buf mark)
1250                 'kill))))
1251       (message "Killed %s lines" count))))
1252
1253 ;;;###autoload
1254 (defun ibuffer-jump-to-buffer (name)
1255   "Move point to the buffer whose name is NAME.
1256
1257 If called interactively, prompt for a buffer name and go to the
1258 corresponding line in the Ibuffer buffer.  If said buffer is in a
1259 hidden group filter, open it.
1260
1261 If `ibuffer-jump-offer-only-visible-buffers' is non-nil, only offer
1262 visible buffers in the completion list.  Calling the command with
1263 a prefix argument reverses the meaning of that variable."
1264   (interactive (list
1265                 (let ((only-visible ibuffer-jump-offer-only-visible-buffers))
1266                   (when current-prefix-arg
1267                     (setq only-visible (not only-visible)))
1268                   (if only-visible
1269                       (let ((table (mapcar #'(lambda (x)
1270                                                (buffer-name (car x)))
1271                                            (ibuffer-current-state-list))))
1272                         (when (null table)
1273                           (error "No buffers!"))
1274                         (completing-read "Jump to buffer: "
1275                                          table nil t))
1276                     (read-buffer "Jump to buffer: " nil t)))))
1277   (when (not (string= "" name))
1278     (let (buf-point)
1279       ;; Blindly search for our buffer: it is very likely that it is
1280       ;; not in a hidden filter group.
1281       (ibuffer-map-lines #'(lambda (buf marks)
1282                              (when (string= (buffer-name buf) name)
1283                                (setq buf-point (point))
1284                                nil))
1285                          t nil)
1286       (when (and
1287              (null buf-point)
1288              (not (null ibuffer-hidden-filter-groups)))
1289         ;; We did not find our buffer.  It must be in a hidden filter
1290         ;; group, so go through all hidden filter groups to find it.
1291         (catch 'found
1292           (dolist (group ibuffer-hidden-filter-groups)
1293             (ibuffer-jump-to-filter-group group)
1294             (ibuffer-toggle-filter-group)
1295             (ibuffer-map-lines #'(lambda (buf marks)
1296                                    (when (string= (buffer-name buf) name)
1297                                      (setq buf-point (point))
1298                                      nil))
1299                                t group)
1300             (if buf-point
1301                 (throw 'found nil)
1302               (ibuffer-toggle-filter-group)))))
1303       (if (null buf-point)
1304           ;; Still not found even though we expanded all hidden filter
1305           ;; groups: that must be because it's hidden by predicate:
1306           ;; we won't bother trying to display it.
1307           (error "No buffer with name %s" name)
1308         (goto-char buf-point)))))
1309
1310 ;;;###autoload
1311 (defun ibuffer-diff-with-file ()
1312   "View the differences between this buffer and its associated file.
1313 This requires the external program \"diff\" to be in your `exec-path'."
1314   (interactive)
1315   (let ((buf (ibuffer-current-buffer)))
1316     (unless (buffer-live-p buf)
1317       (error "Buffer %s has been killed" buf))
1318     (diff-buffer-with-file buf)))
1319
1320 ;;;###autoload
1321 (defun ibuffer-copy-filename-as-kill (&optional arg)
1322   "Copy filenames of marked buffers into the kill ring.
1323
1324 The names are separated by a space.
1325 If a buffer has no filename, it is ignored.
1326
1327 With no prefix arg, use the filename sans its directory of each marked file.
1328 With a zero prefix arg, use the complete filename of each marked file.
1329 With \\[universal-argument], use the filename of each marked file relative
1330 to `ibuffer-default-directory' if non-nil, otherwise `default-directory'.
1331
1332 You can then feed the file name(s) to other commands with \\[yank]."
1333   (interactive "p")
1334   (if (zerop (ibuffer-count-marked-lines))
1335       (message "No buffers marked; use 'm' to mark a buffer")
1336     (let ((ibuffer-copy-filename-as-kill-result "")
1337           (type (cond ((zerop arg)
1338                        'full)
1339                       ((= arg 4)
1340                        'relative)
1341                       (t
1342                        'name))))
1343       (ibuffer-map-marked-lines
1344        #'(lambda (buf mark)
1345            (setq ibuffer-copy-filename-as-kill-result
1346                  (concat ibuffer-copy-filename-as-kill-result
1347                          (let ((name (buffer-file-name buf)))
1348                            (if name
1349                                (case type
1350                                  (full
1351                                   name)
1352                                  (relative
1353                                   (file-relative-name
1354                                    name (or ibuffer-default-directory
1355                                             default-directory)))
1356                                  (t
1357                                   (file-name-nondirectory name)))
1358                              ""))
1359                          " "))))
1360       (kill-new ibuffer-copy-filename-as-kill-result))))
1361
1362 (defun ibuffer-mark-on-buffer (func &optional ibuffer-mark-on-buffer-mark group)
1363   (let ((count
1364          (ibuffer-map-lines
1365           #'(lambda (buf mark)
1366               (when (funcall func buf)
1367                 (ibuffer-set-mark-1 (or ibuffer-mark-on-buffer-mark
1368                                         ibuffer-marked-char))
1369                 t))
1370           nil
1371           group)))
1372     (ibuffer-redisplay t)
1373     (message "Marked %s buffers" count)))
1374
1375 ;;;###autoload
1376 (defun ibuffer-mark-by-name-regexp (regexp)
1377   "Mark all buffers whose name matches REGEXP."
1378   (interactive "sMark by name (regexp): ")
1379   (ibuffer-mark-on-buffer
1380    #'(lambda (buf)
1381        (string-match regexp (buffer-name buf)))))
1382
1383 ;;;###autoload
1384 (defun ibuffer-mark-by-mode-regexp (regexp)
1385   "Mark all buffers whose major mode matches REGEXP."
1386   (interactive "sMark by major mode (regexp): ")
1387   (ibuffer-mark-on-buffer
1388    #'(lambda (buf)
1389        (with-current-buffer buf
1390          (string-match regexp mode-name)))))
1391
1392 ;;;###autoload
1393 (defun ibuffer-mark-by-file-name-regexp (regexp)
1394   "Mark all buffers whose file name matches REGEXP."
1395   (interactive "sMark by file name (regexp): ")
1396   (ibuffer-mark-on-buffer
1397    #'(lambda (buf)
1398        (let ((name (or (buffer-file-name buf)
1399                        (with-current-buffer buf
1400                          (and
1401                           (boundp 'dired-directory)
1402                           (stringp dired-directory)
1403                           dired-directory)))))
1404          (when name
1405            (string-match regexp name))))))
1406
1407 ;;;###autoload
1408 (defun ibuffer-mark-by-mode (mode)
1409   "Mark all buffers whose major mode equals MODE."
1410   (interactive
1411    (list (intern (completing-read "Mark by major mode: " obarray
1412                                   #'(lambda (e)
1413                                       ;; kind of a hack...
1414                                       (and (fboundp e)
1415                                            (string-match "-mode$"
1416                                                          (symbol-name e))))
1417                                   t
1418                                   (let ((buf (ibuffer-current-buffer)))
1419                                     (if (and buf (buffer-live-p buf))
1420                                         (with-current-buffer buf
1421                                           (cons (symbol-name major-mode)
1422                                                 0))
1423                                       ""))))))
1424   (ibuffer-mark-on-buffer
1425    #'(lambda (buf)
1426        (with-current-buffer buf
1427          (eq major-mode mode)))))
1428
1429 ;;;###autoload
1430 (defun ibuffer-mark-modified-buffers ()
1431   "Mark all modified buffers."
1432   (interactive)
1433   (ibuffer-mark-on-buffer
1434    #'(lambda (buf) (buffer-modified-p buf))))
1435
1436 ;;;###autoload
1437 (defun ibuffer-mark-unsaved-buffers ()
1438   "Mark all modified buffers that have an associated file."
1439   (interactive)
1440   (ibuffer-mark-on-buffer
1441    #'(lambda (buf) (and (with-current-buffer buf buffer-file-name)
1442                         (buffer-modified-p buf)))))
1443
1444 ;;;###autoload
1445 (defun ibuffer-mark-dissociated-buffers ()
1446   "Mark all buffers whose associated file does not exist."
1447   (interactive)
1448   (ibuffer-mark-on-buffer
1449    #'(lambda (buf)
1450        (with-current-buffer buf
1451          (or
1452           (and buffer-file-name
1453                (not (file-exists-p buffer-file-name)))
1454           (and (eq major-mode 'dired-mode)
1455                (boundp 'dired-directory)
1456                (stringp dired-directory)
1457                (not (file-exists-p (file-name-directory dired-directory)))))))))
1458
1459 ;;;###autoload
1460 (defun ibuffer-mark-help-buffers ()
1461   "Mark buffers like *Help*, *Apropos*, *Info*."
1462   (interactive)
1463   (ibuffer-mark-on-buffer
1464    #'(lambda (buf)
1465        (with-current-buffer buf
1466          (memq major-mode ibuffer-help-buffer-modes)))))
1467
1468 ;;;###autoload
1469 (defun ibuffer-mark-compressed-file-buffers ()
1470   "Mark buffers whose associated file is compressed."
1471   (interactive)
1472   (ibuffer-mark-on-buffer
1473    #'(lambda (buf)
1474        (with-current-buffer buf
1475          (and buffer-file-name
1476               (string-match ibuffer-compressed-file-name-regexp
1477                            buffer-file-name))))))
1478
1479 ;;;###autoload
1480 (defun ibuffer-mark-old-buffers ()
1481   "Mark buffers which have not been viewed in `ibuffer-old-time' hours."
1482   (interactive)
1483   (ibuffer-mark-on-buffer
1484    #'(lambda (buf)
1485        (with-current-buffer buf
1486          ;; hacked from midnight.el
1487          (when buffer-display-time
1488            (let* ((tm (current-time))
1489                   (now (+ (* (float (ash 1 16)) (car tm))
1490                           (float (cadr tm)) (* 0.0000001 (caddr tm))))
1491                   (then (+ (* (float (ash 1 16))
1492                               (car buffer-display-time))
1493                            (float (cadr buffer-display-time))
1494                            (* 0.0000001 (caddr buffer-display-time)))))
1495              (> (- now then) (* 60 60 ibuffer-old-time))))))))
1496
1497 ;;;###autoload
1498 (defun ibuffer-mark-special-buffers ()
1499   "Mark all buffers whose name begins and ends with '*'."
1500   (interactive)
1501   (ibuffer-mark-on-buffer
1502    #'(lambda (buf) (string-match "^\\*.+\\*$"
1503                                  (buffer-name buf)))))
1504
1505 ;;;###autoload
1506 (defun ibuffer-mark-read-only-buffers ()
1507   "Mark all read-only buffers."
1508   (interactive)
1509   (ibuffer-mark-on-buffer
1510    #'(lambda (buf)
1511        (with-current-buffer buf
1512          buffer-read-only))))
1513
1514 ;;;###autoload
1515 (defun ibuffer-mark-dired-buffers ()
1516   "Mark all `dired' buffers."
1517   (interactive)
1518   (ibuffer-mark-on-buffer
1519    #'(lambda (buf)
1520        (with-current-buffer buf
1521          (eq major-mode 'dired-mode)))))
1522
1523 ;;;###autoload
1524 (defun ibuffer-do-occur (regexp &optional nlines)
1525   "View lines which match REGEXP in all marked buffers.
1526 Optional argument NLINES says how many lines of context to display: it
1527 defaults to one."
1528   (interactive (occur-read-primary-args))
1529   (if (or (not (integerp nlines))
1530           (< nlines 0))
1531       (setq nlines 0))
1532   (when (zerop (ibuffer-count-marked-lines))
1533     (ibuffer-set-mark ibuffer-marked-char))
1534   (let ((ibuffer-do-occur-bufs nil))
1535     ;; Accumulate a list of marked buffers
1536     (ibuffer-map-marked-lines
1537      #'(lambda (buf mark)
1538          (push buf ibuffer-do-occur-bufs)))
1539     (occur-1 regexp nlines ibuffer-do-occur-bufs)))
1540
1541 (provide 'ibuf-ext)
1542
1543 ;;; arch-tag: 9af21953-deda-4c30-b76d-f81d9128e76d
1544 ;;; ibuf-ext.el ends here