code.delx.au - gnu-emacs/blob - lisp/ibuf-ext.el

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