lisp/ibuf-ext.el

   1 ;;; ibuf-ext.el --- extensions for ibuffer
   2
   3 ;; Copyright (C) 2000, 2001, 2002, 2003, 2004,
   4 ;;   2005, 2006 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   :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-group',
 184 `ibuffer-save-filter-group'."
 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 "xEval in buffers (form): "
 374    :opstring "evaluated in"
 375    :modifier-p :maybe)
 376   (eval form))
 377
 378 ;;;###autoload (autoload 'ibuffer-do-view-and-eval "ibuf-ext")
 379 (define-ibuffer-op view-and-eval (form)
 380   "Evaluate FORM while displaying each of the marked buffers.
 381 To evaluate a form without viewing the buffer, see `ibuffer-do-eval'."
 382   (:interactive "xEval viewing buffers (form): "
 383    :opstring "evaluated in"
 384    :complex t
 385    :modifier-p :maybe)
 386   (let ((ibuffer-buf (current-buffer)))
 387     (unwind-protect
 388         (progn
 389           (switch-to-buffer buf)
 390           (eval form))
 391       (switch-to-buffer ibuffer-buf))))
 392
 393 ;;;###autoload (autoload 'ibuffer-do-rename-uniquely "ibuf-ext")
 394 (define-ibuffer-op rename-uniquely ()
 395   "Rename marked buffers as with `rename-uniquely'."
 396   (:opstring "renamed"
 397    :modifier-p t)
 398   (rename-uniquely))
 399
 400 ;;;###autoload (autoload 'ibuffer-do-revert "ibuf-ext")
 401 (define-ibuffer-op revert ()
 402   "Revert marked buffers as with `revert-buffer'."
 403   (:dangerous t
 404    :opstring "reverted"
 405    :active-opstring "revert"
 406    :modifier-p :maybe)
 407   (revert-buffer t t))
 408
 409 ;;;###autoload (autoload 'ibuffer-do-replace-regexp "ibuf-ext")
 410 (define-ibuffer-op replace-regexp (from-str to-str)
 411   "Perform a `replace-regexp' in marked buffers."
 412   (:interactive
 413    (let* ((from-str (read-from-minibuffer "Replace regexp: "))
 414           (to-str (read-from-minibuffer (concat "Replace " from-str
 415                                                 " with: "))))
 416      (list from-str to-str))
 417    :opstring "replaced in"
 418    :complex t
 419    :modifier-p :maybe)
 420   (save-window-excursion
 421     (switch-to-buffer buf)
 422     (save-excursion
 423       (goto-char (point-min))
 424       (let ((case-fold-search ibuffer-case-fold-search))
 425         (while (re-search-forward from-str nil t)
 426           (replace-match to-str))))
 427     t))
 428
 429 ;;;###autoload (autoload 'ibuffer-do-query-replace "ibuf-ext")
 430 (define-ibuffer-op query-replace (&rest args)
 431   "Perform a `query-replace' in marked buffers."
 432   (:interactive
 433    (query-replace-read-args "Query replace" t t)
 434    :opstring "replaced in"
 435    :complex t
 436    :modifier-p :maybe)
 437   (save-window-excursion
 438     (switch-to-buffer buf)
 439     (save-excursion
 440       (let ((case-fold-search ibuffer-case-fold-search))
 441         (goto-char (point-min))
 442         (apply #'query-replace args)))
 443     t))
 444
 445 ;;;###autoload (autoload 'ibuffer-do-query-replace-regexp "ibuf-ext")
 446 (define-ibuffer-op query-replace-regexp (&rest args)
 447   "Perform a `query-replace-regexp' in marked buffers."
 448   (:interactive
 449    (query-replace-read-args "Query replace regexp" t t)
 450    :opstring "replaced in"
 451    :complex t
 452    :modifier-p :maybe)
 453   (save-window-excursion
 454     (switch-to-buffer buf)
 455     (save-excursion
 456       (let ((case-fold-search ibuffer-case-fold-search))
 457         (goto-char (point-min))
 458         (apply #'query-replace-regexp args)))
 459     t))
 460
 461 ;;;###autoload (autoload 'ibuffer-do-print "ibuf-ext")
 462 (define-ibuffer-op print ()
 463   "Print marked buffers as with `print-buffer'."
 464   (:opstring "printed"
 465    :modifier-p nil)
 466   (print-buffer))
 467
 468 ;;;###autoload
 469 (defun ibuffer-included-in-filters-p (buf filters)
 470   (not
 471    (memq nil ;; a filter will return nil if it failed
 472          (mapcar
 473           ;; filter should be like (TYPE . QUALIFIER), or
 474           ;; (or (TYPE . QUALIFIER) (TYPE . QUALIFIER) ...)
 475           #'(lambda (qual)
 476               (ibuffer-included-in-filter-p buf qual))
 477           filters))))
 478
 479 (defun ibuffer-included-in-filter-p (buf filter)
 480   (if (eq (car filter) 'not)
 481       (not (ibuffer-included-in-filter-p-1 buf (cdr filter)))
 482     (ibuffer-included-in-filter-p-1 buf filter)))
 483
 484 (defun ibuffer-included-in-filter-p-1 (buf filter)
 485   (not
 486    (not
 487     (case (car filter)
 488       (or
 489        (memq t (mapcar #'(lambda (x)
 490                            (ibuffer-included-in-filter-p buf x))
 491                        (cdr filter))))
 492       (saved
 493        (let ((data
 494               (assoc (cdr filter)
 495                      ibuffer-saved-filters)))
 496          (unless data
 497            (ibuffer-filter-disable)
 498            (error "Unknown saved filter %s" (cdr filter)))
 499          (ibuffer-included-in-filters-p buf (cadr data))))
 500       (t
 501        (let ((filterdat (assq (car filter)
 502                               ibuffer-filtering-alist)))
 503          ;; filterdat should be like (TYPE DESCRIPTION FUNC)
 504          ;; just a sanity check
 505         (unless filterdat
 506           (ibuffer-filter-disable)
 507           (error "Undefined filter %s" (car filter)))
 508         (not
 509          (not
 510           (funcall (caddr filterdat)
 511                    buf
 512                    (cdr filter))))))))))
 513
 514 (defun ibuffer-generate-filter-groups (bmarklist)
 515   (let ((filter-group-alist (append ibuffer-filter-groups
 516                                        (list (cons "Default" nil)))))
 517 ;;     (dolist (hidden ibuffer-hidden-filter-groups)
 518 ;;       (setq filter-group-alist (ibuffer-delete-alist
 519 ;;                                 hidden filter-group-alist)))
 520     (let ((vec (make-vector (length filter-group-alist) nil))
 521           (i 0))
 522       (dolist (filtergroup filter-group-alist)
 523         (let ((filterset (cdr filtergroup)))
 524           (multiple-value-bind (hip-crowd lamers)
 525               (ibuffer-split-list (lambda (bufmark)
 526                                     (ibuffer-included-in-filters-p (car bufmark)
 527                                                                    filterset))
 528                                   bmarklist)
 529             (aset vec i hip-crowd)
 530             (incf i)
 531             (setq bmarklist lamers))))
 532       (let ((ret nil))
 533         (dotimes (j i ret)
 534           (push (cons (car (nth j filter-group-alist))
 535                       (aref vec j))
 536                 ret))))))
 537
 538 ;;;###autoload
 539 (defun ibuffer-filters-to-filter-group (name)
 540   "Make the current filters into a filtering group."
 541   (interactive "sName for filtering group: ")
 542   (when (null ibuffer-filtering-qualifiers)
 543     (error "No filters in effect"))
 544   (push (cons name ibuffer-filtering-qualifiers) ibuffer-filter-groups)
 545   (ibuffer-filter-disable))
 546
 547 ;;;###autoload
 548 (defun ibuffer-set-filter-groups-by-mode ()
 549   "Set the current filter groups to filter by mode."
 550   (interactive)
 551   (setq ibuffer-filter-groups
 552         (mapcar (lambda (mode)
 553                   (cons (format "%s" mode) `((mode . ,mode))))
 554                 (let ((modes
 555                        (ibuffer-remove-duplicates
 556                         (mapcar (lambda (buf)
 557                                   (with-current-buffer buf major-mode))
 558                                 (buffer-list)))))
 559                   (if ibuffer-view-ibuffer
 560                       modes
 561                     (delq 'ibuffer-mode modes)))))
 562   (ibuffer-update nil t))
 563
 564 ;;;###autoload
 565 (defun ibuffer-pop-filter-group ()
 566   "Remove the first filter group."
 567   (interactive)
 568   (when (null ibuffer-filter-groups)
 569     (error "No filter groups active"))
 570   (setq ibuffer-hidden-filter-groups
 571         (delete (pop ibuffer-filter-groups)
 572                 ibuffer-hidden-filter-groups))
 573   (ibuffer-update nil t))
 574
 575 (defun ibuffer-read-filter-group-name (msg &optional nodefault noerror)
 576   (when (and (not noerror) (null ibuffer-filter-groups))
 577     (error "No filter groups active"))
 578   (let ((groups (mapcar #'car ibuffer-filter-groups)))
 579     (completing-read msg (if nodefault
 580                              groups
 581                            (cons "Default" groups))
 582                      nil t)))
 583
 584 ;;;###autoload
 585 (defun ibuffer-decompose-filter-group (group)
 586   "Decompose the filter group GROUP into active filters."
 587   (interactive
 588    (list (ibuffer-read-filter-group-name "Decompose filter group: " t)))
 589   (let ((data (cdr (assoc group ibuffer-filter-groups))))
 590     (setq ibuffer-filter-groups (ibuffer-delete-alist
 591                                  group ibuffer-filter-groups)
 592           ibuffer-filtering-qualifiers data))
 593   (ibuffer-update nil t))
 594
 595 ;;;###autoload
 596 (defun ibuffer-clear-filter-groups ()
 597   "Remove all filter groups."
 598   (interactive)
 599   (setq ibuffer-filter-groups nil
 600         ibuffer-hidden-filter-groups nil)
 601   (ibuffer-update nil t))
 602
 603 (defun ibuffer-current-filter-groups-with-position ()
 604   (save-excursion
 605     (goto-char (point-min))
 606     (let ((pos nil)
 607           (result nil))
 608       (while (and (not (eobp))
 609                   (setq pos (next-single-property-change
 610                              (point) 'ibuffer-filter-group-name)))
 611         (goto-char pos)
 612         (push (cons (get-text-property (point) 'ibuffer-filter-group-name)
 613                     pos)
 614               result)
 615         (goto-char (next-single-property-change
 616                     pos 'ibuffer-filter-group-name)))
 617       (nreverse result))))
 618
 619 ;;;###autoload
 620 (defun ibuffer-jump-to-filter-group (name)
 621   "Move point to the filter group whose name is NAME."
 622   (interactive
 623    (list (ibuffer-read-filter-group-name "Jump to filter group: ")))
 624   (ibuffer-aif (assoc name (ibuffer-current-filter-groups-with-position))
 625       (goto-char (cdr it))
 626     (error "No filter group with name %s" name)))
 627
 628 ;;;###autoload
 629 (defun ibuffer-kill-filter-group (name)
 630   "Kill the filter group named NAME.
 631 The group will be added to `ibuffer-filter-group-kill-ring'."
 632   (interactive (list (ibuffer-read-filter-group-name "Kill filter group: " t)))
 633   (when (equal name "Default")
 634     (error "Can't kill default filter group"))
 635   (ibuffer-aif (assoc name ibuffer-filter-groups)
 636       (progn
 637         (push (copy-tree it) ibuffer-filter-group-kill-ring)
 638         (setq ibuffer-filter-groups (ibuffer-delete-alist
 639                                      name ibuffer-filter-groups))
 640         (setq ibuffer-hidden-filter-groups
 641               (delete name ibuffer-hidden-filter-groups)))
 642     (error "No filter group with name \"%s\"" name))
 643   (ibuffer-update nil t))
 644
 645 ;;;###autoload
 646 (defun ibuffer-kill-line (&optional arg interactive-p)
 647   "Kill the filter group at point.
 648 See also `ibuffer-kill-filter-group'."
 649   (interactive "P\np")
 650   (ibuffer-aif (save-excursion
 651                  (ibuffer-forward-line 0)
 652                  (get-text-property (point) 'ibuffer-filter-group-name))
 653       (progn
 654         (ibuffer-kill-filter-group it))
 655       (funcall (if interactive-p #'call-interactively #'funcall)
 656                #'kill-line arg)))
 657
 658 (defun ibuffer-insert-filter-group-before (newgroup group)
 659   (let* ((found nil)
 660          (pos (let ((groups (mapcar #'car ibuffer-filter-groups))
 661                     (res 0))
 662                 (while groups
 663                   (if (equal (car groups) group)
 664                       (setq found t
 665                             groups nil)
 666                     (incf res)
 667                     (setq groups (cdr groups))))
 668                 res)))
 669     (cond ((not found)
 670            (setq ibuffer-filter-groups
 671                  (nconc ibuffer-filter-groups (list newgroup))))
 672           ((zerop pos)
 673            (push newgroup ibuffer-filter-groups))
 674           (t
 675            (let ((cell (nthcdr pos ibuffer-filter-groups)))
 676              (setf (cdr cell) (cons (car cell) (cdr cell)))
 677              (setf (car cell) newgroup))))))
 678
 679 ;;;###autoload
 680 (defun ibuffer-yank ()
 681   "Yank the last killed filter group before group at point."
 682   (interactive)
 683   (ibuffer-yank-filter-group
 684    (or (get-text-property (point) 'ibuffer-filter-group-name)
 685        (get-text-property (point) 'ibuffer-filter-group)
 686        (error "No filter group at point"))))
 687
 688 ;;;###autoload
 689 (defun ibuffer-yank-filter-group (name)
 690   "Yank the last killed filter group before group named NAME."
 691   (interactive (list (ibuffer-read-filter-group-name
 692                         "Yank filter group before group: ")))
 693   (unless ibuffer-filter-group-kill-ring
 694     (error "The Ibuffer filter group kill-ring is empty"))
 695   (save-excursion
 696     (ibuffer-forward-line 0)
 697     (ibuffer-insert-filter-group-before (pop ibuffer-filter-group-kill-ring)
 698                                         name))
 699   (ibuffer-update nil t))
 700
 701 ;;;###autoload
 702 (defun ibuffer-save-filter-groups (name groups)
 703   "Save all active filter groups GROUPS as NAME.
 704 They are added to `ibuffer-saved-filter-groups'.  Interactively,
 705 prompt for NAME, and use the current filters."
 706   (interactive
 707    (if (null ibuffer-filter-groups)
 708        (error "No filter groups active")
 709      (list
 710       (read-from-minibuffer "Save current filter groups as: ")
 711       ibuffer-filter-groups)))
 712   (ibuffer-aif (assoc name ibuffer-saved-filter-groups)
 713       (setcdr it groups)
 714     (push (cons name groups) ibuffer-saved-filter-groups))
 715   (ibuffer-maybe-save-stuff)
 716   (ibuffer-update-mode-name))
 717
 718 ;;;###autoload
 719 (defun ibuffer-delete-saved-filter-groups (name)
 720   "Delete saved filter groups with NAME.
 721 They are removed from `ibuffer-saved-filter-groups'."
 722   (interactive
 723    (list
 724     (if (null ibuffer-saved-filter-groups)
 725         (error "No saved filter groups")
 726       (completing-read "Delete saved filter group: "
 727                        ibuffer-saved-filter-groups nil t))))
 728   (setq ibuffer-saved-filter-groups
 729         (ibuffer-delete-alist name ibuffer-saved-filter-groups))
 730   (ibuffer-maybe-save-stuff)
 731   (ibuffer-update nil t))
 732
 733 ;;;###autoload
 734 (defun ibuffer-switch-to-saved-filter-groups (name)
 735   "Set this buffer's filter groups to saved version with NAME.
 736 The value from `ibuffer-saved-filters' is used.
 737 If prefix argument ADD is non-nil, then add the saved filters instead
 738 of replacing the current filters."
 739   (interactive
 740    (list
 741     (if (null ibuffer-saved-filter-groups)
 742         (error "No saved filters")
 743       (completing-read "Switch to saved filter group: "
 744                        ibuffer-saved-filter-groups nil t))))
 745   (setq ibuffer-filter-groups (cdr (assoc name ibuffer-saved-filter-groups))
 746         ibuffer-hidden-filter-groups nil)
 747   (ibuffer-update nil t))
 748
 749 ;;;###autoload
 750 (defun ibuffer-filter-disable ()
 751   "Disable all filters currently in effect in this buffer."
 752   (interactive)
 753   (setq ibuffer-filtering-qualifiers nil)
 754   (let ((buf (ibuffer-current-buffer)))
 755     (ibuffer-update nil t)
 756     (when buf
 757       (ibuffer-jump-to-buffer (buffer-name buf)))))
 758
 759 ;;;###autoload
 760 (defun ibuffer-pop-filter ()
 761   "Remove the top filter in this buffer."
 762   (interactive)
 763   (when (null ibuffer-filtering-qualifiers)
 764     (error "No filters in effect"))
 765   (pop ibuffer-filtering-qualifiers)
 766   (let ((buf (ibuffer-current-buffer)))
 767     (ibuffer-update nil t)
 768     (when buf
 769       (ibuffer-jump-to-buffer (buffer-name buf)))))
 770
 771 (defun ibuffer-push-filter (qualifier)
 772   "Add QUALIFIER to `ibuffer-filtering-qualifiers'."
 773   (push qualifier ibuffer-filtering-qualifiers))
 774
 775 ;;;###autoload
 776 (defun ibuffer-decompose-filter ()
 777   "Separate the top compound filter (OR, NOT, or SAVED) in this buffer.
 778
 779 This means that the topmost filter on the filtering stack, which must
 780 be a complex filter like (OR [name: foo] [mode: bar-mode]), will be
 781 turned into two separate filters [name: foo] and [mode: bar-mode]."
 782   (interactive)
 783   (when (null ibuffer-filtering-qualifiers)
 784     (error "No filters in effect"))
 785   (let ((lim (pop ibuffer-filtering-qualifiers)))
 786     (case (car lim)
 787       (or
 788        (setq ibuffer-filtering-qualifiers (append
 789                                           (cdr lim)
 790                                           ibuffer-filtering-qualifiers)))
 791       (saved
 792        (let ((data
 793               (assoc (cdr lim)
 794                      ibuffer-saved-filters)))
 795          (unless data
 796            (ibuffer-filter-disable)
 797            (error "Unknown saved filter %s" (cdr lim)))
 798          (setq ibuffer-filtering-qualifiers (append
 799                                             (cadr data)
 800                                             ibuffer-filtering-qualifiers))))
 801       (not
 802        (push (cdr lim)
 803              ibuffer-filtering-qualifiers))
 804       (t
 805        (error "Filter type %s is not compound" (car lim)))))
 806   (ibuffer-update nil t))
 807
 808 ;;;###autoload
 809 (defun ibuffer-exchange-filters ()
 810   "Exchange the top two filters on the stack in this buffer."
 811   (interactive)
 812   (when (< (length ibuffer-filtering-qualifiers)
 813            2)
 814     (error "Need two filters to exchange"))
 815   (let ((first (pop ibuffer-filtering-qualifiers))
 816         (second (pop ibuffer-filtering-qualifiers)))
 817     (push first ibuffer-filtering-qualifiers)
 818     (push second ibuffer-filtering-qualifiers))
 819   (ibuffer-update nil t))
 820
 821 ;;;###autoload
 822 (defun ibuffer-negate-filter ()
 823   "Negate the sense of the top filter in the current buffer."
 824   (interactive)
 825   (when (null ibuffer-filtering-qualifiers)
 826     (error "No filters in effect"))
 827   (let ((lim (pop ibuffer-filtering-qualifiers)))
 828     (push (if (eq (car lim) 'not)
 829               (cdr lim)
 830             (cons 'not lim))
 831           ibuffer-filtering-qualifiers))
 832   (ibuffer-update nil t))
 833
 834 ;;;###autoload
 835 (defun ibuffer-or-filter (&optional reverse)
 836   "Replace the top two filters in this buffer with their logical OR.
 837 If optional argument REVERSE is non-nil, instead break the top OR
 838 filter into parts."
 839   (interactive "P")
 840   (if reverse
 841       (progn
 842         (when (or (null ibuffer-filtering-qualifiers)
 843                   (not (eq 'or (caar ibuffer-filtering-qualifiers))))
 844           (error "Top filter is not an OR"))
 845         (let ((lim (pop ibuffer-filtering-qualifiers)))
 846           (setq ibuffer-filtering-qualifiers
 847                 (nconc (cdr lim) ibuffer-filtering-qualifiers))))
 848     (when (< (length ibuffer-filtering-qualifiers) 2)
 849       (error "Need two filters to OR"))
 850     ;; If the second filter is an OR, just add to it.
 851     (let ((first (pop ibuffer-filtering-qualifiers))
 852           (second (pop ibuffer-filtering-qualifiers)))
 853       (if (eq 'or (car second))
 854           (push (nconc (list 'or first) (cdr second))
 855                 ibuffer-filtering-qualifiers)
 856         (push (list 'or first second)
 857               ibuffer-filtering-qualifiers))))
 858   (ibuffer-update nil t))
 859
 860 (defun ibuffer-maybe-save-stuff ()
 861   (when ibuffer-save-with-custom
 862     (if (fboundp 'customize-save-variable)
 863         (progn
 864           (customize-save-variable 'ibuffer-saved-filters
 865                                    ibuffer-saved-filters)
 866           (customize-save-variable 'ibuffer-saved-filter-groups
 867                                    ibuffer-saved-filter-groups))
 868       (message "Not saved permanently: Customize not available"))))
 869
 870 ;;;###autoload
 871 (defun ibuffer-save-filters (name filters)
 872   "Save FILTERS in this buffer with name NAME in `ibuffer-saved-filters'.
 873 Interactively, prompt for NAME, and use the current filters."
 874   (interactive
 875    (if (null ibuffer-filtering-qualifiers)
 876        (error "No filters currently in effect")
 877      (list
 878       (read-from-minibuffer "Save current filters as: ")
 879       ibuffer-filtering-qualifiers)))
 880   (ibuffer-aif (assoc name ibuffer-saved-filters)
 881       (setcdr it filters)
 882     (push (list name filters) ibuffer-saved-filters))
 883   (ibuffer-maybe-save-stuff)
 884   (ibuffer-update-mode-name))
 885
 886 ;;;###autoload
 887 (defun ibuffer-delete-saved-filters (name)
 888   "Delete saved filters with NAME from `ibuffer-saved-filters'."
 889   (interactive
 890    (list
 891     (if (null ibuffer-saved-filters)
 892         (error "No saved filters")
 893       (completing-read "Delete saved filters: "
 894                        ibuffer-saved-filters nil t))))
 895   (setq ibuffer-saved-filters
 896         (ibuffer-delete-alist name ibuffer-saved-filters))
 897   (ibuffer-maybe-save-stuff)
 898   (ibuffer-update nil t))
 899
 900 ;;;###autoload
 901 (defun ibuffer-add-saved-filters (name)
 902   "Add saved filters from `ibuffer-saved-filters' to this buffer's filters."
 903   (interactive
 904    (list
 905     (if (null ibuffer-saved-filters)
 906         (error "No saved filters")
 907       (completing-read "Add saved filters: "
 908                        ibuffer-saved-filters nil t))))
 909   (push (cons 'saved name) ibuffer-filtering-qualifiers)
 910   (ibuffer-update nil t))
 911
 912 ;;;###autoload
 913 (defun ibuffer-switch-to-saved-filters (name)
 914   "Set this buffer's filters to filters with NAME from `ibuffer-saved-filters'.
 915 If prefix argument ADD is non-nil, then add the saved filters instead
 916 of replacing the current filters."
 917   (interactive
 918    (list
 919     (if (null ibuffer-saved-filters)
 920         (error "No saved filters")
 921       (completing-read "Switch to saved filters: "
 922                        ibuffer-saved-filters nil t))))
 923   (setq ibuffer-filtering-qualifiers (list (cons 'saved name)))
 924   (ibuffer-update nil t))
 925
 926 (defun ibuffer-format-filter-group-data (filter)
 927   (if (equal filter "Default")
 928       ""
 929     (concat "Filter:" (mapconcat #'ibuffer-format-qualifier
 930                                  (cdr (assq filter ibuffer-filter-groups))
 931                                  " "))))
 932
 933 (defun ibuffer-format-qualifier (qualifier)
 934   (if (eq (car-safe qualifier) 'not)
 935       (concat " [NOT" (ibuffer-format-qualifier-1 (cdr qualifier)) "]")
 936     (ibuffer-format-qualifier-1 qualifier)))
 937
 938 (defun ibuffer-format-qualifier-1 (qualifier)
 939   (case (car qualifier)
 940     (saved
 941      (concat " [filter: " (cdr qualifier) "]"))
 942     (or
 943      (concat " [OR" (mapconcat #'ibuffer-format-qualifier
 944                                (cdr qualifier) "") "]"))
 945     (t
 946      (let ((type (assq (car qualifier) ibuffer-filtering-alist)))
 947        (unless qualifier
 948          (error "Ibuffer: bad qualifier %s" qualifier))
 949        (concat " [" (cadr type) ": " (format "%s]" (cdr qualifier)))))))
 950
 951
 952 (defun ibuffer-list-buffer-modes ()
 953   "Create an alist of buffer modes currently in use.
 954 The list returned will be of the form (\"MODE-NAME\" . MODE-SYMBOL)."
 955   (let ((bufs (buffer-list))
 956         (modes)
 957         (this-mode))
 958     (while bufs
 959       (setq this-mode
 960             (with-current-buffer
 961                 (car bufs)
 962               major-mode)
 963             bufs (cdr bufs))
 964       (add-to-list
 965        'modes
 966        `(,(symbol-name this-mode) .
 967          ,this-mode)))
 968     modes))
 969
 970
 971 ;;; Extra operation definitions
 972
 973 ;;;###autoload (autoload 'ibuffer-filter-by-mode "ibuf-ext")
 974 (define-ibuffer-filter mode
 975   "Toggle current view to buffers with major mode QUALIFIER."
 976   (:description "major mode"
 977    :reader
 978    (intern
 979     (completing-read "Filter by major mode: " obarray
 980                      #'(lambda (e)
 981                          (string-match "-mode$"
 982                                        (symbol-name e)))
 983                      t
 984                      (let ((buf (ibuffer-current-buffer)))
 985                        (if (and buf (buffer-live-p buf))
 986                            (with-current-buffer buf
 987                              (symbol-name major-mode))
 988                          "")))))
 989   (eq qualifier (with-current-buffer buf major-mode)))
 990
 991 ;;;###autoload (autoload 'ibuffer-filter-by-used-mode "ibuf-ext")
 992 (define-ibuffer-filter used-mode
 993   "Toggle current view to buffers with major mode QUALIFIER.
 994 Called interactively, this function allows selection of modes
 995 currently used by buffers."
 996   (:description "major mode in use"
 997                 :reader
 998                 (intern
 999                  (completing-read "Filter by major mode: "
1000                                   (ibuffer-list-buffer-modes)
1001                                   nil
1002                                   t
1003                                   (let ((buf (ibuffer-current-buffer)))
1004                                     (if (and buf (buffer-live-p buf))
1005                                         (with-current-buffer buf
1006                                           (symbol-name major-mode))
1007                                       "")))))
1008   (eq qualifier (with-current-buffer buf major-mode)))
1009
1010 ;;;###autoload (autoload 'ibuffer-filter-by-name "ibuf-ext")
1011 (define-ibuffer-filter name
1012   "Toggle current view to buffers with name matching QUALIFIER."
1013   (:description "buffer name"
1014    :reader (read-from-minibuffer "Filter by name (regexp): "))
1015   (string-match qualifier (buffer-name buf)))
1016
1017 ;;;###autoload (autoload 'ibuffer-filter-by-filename "ibuf-ext")
1018 (define-ibuffer-filter filename
1019   "Toggle current view to buffers with filename matching QUALIFIER."
1020   (:description "filename"
1021    :reader (read-from-minibuffer "Filter by filename (regexp): "))
1022   (ibuffer-awhen (with-current-buffer buf
1023                    (or buffer-file-name
1024                        (and (boundp 'dired-directory)
1025                             (let ((dired-dir
1026                                    (if (stringp dired-directory)
1027                                        dired-directory
1028                                      (car dired-directory))))
1029                               (and dired-dir
1030                                    (expand-file-name dired-dir))))))
1031     (string-match qualifier it)))
1032
1033 ;;;###autoload (autoload 'ibuffer-filter-by-size-gt  "ibuf-ext")
1034 (define-ibuffer-filter size-gt
1035   "Toggle current view to buffers with size greater than QUALIFIER."
1036   (:description "size greater than"
1037    :reader
1038    (string-to-number (read-from-minibuffer "Filter by size greater than: ")))
1039   (> (with-current-buffer buf (buffer-size))
1040      qualifier))
1041
1042 ;;;###autoload (autoload 'ibuffer-filter-by-size-lt  "ibuf-ext")
1043 (define-ibuffer-filter size-lt
1044    "Toggle current view to buffers with size less than QUALIFIER."
1045   (:description "size less than"
1046    :reader
1047    (string-to-number (read-from-minibuffer "Filter by size less than: ")))
1048   (< (with-current-buffer buf (buffer-size))
1049      qualifier))
1050
1051 ;;;###autoload (autoload 'ibuffer-filter-by-content "ibuf-ext")
1052 (define-ibuffer-filter content
1053    "Toggle current view to buffers whose contents match QUALIFIER."
1054   (:description "content"
1055    :reader (read-from-minibuffer "Filter by content (regexp): "))
1056   (with-current-buffer buf
1057     (save-excursion
1058       (goto-char (point-min))
1059       (re-search-forward qualifier nil t))))
1060
1061 ;;;###autoload (autoload 'ibuffer-filter-by-predicate "ibuf-ext")
1062 (define-ibuffer-filter predicate
1063    "Toggle current view to buffers for which QUALIFIER returns non-nil."
1064   (:description "predicate"
1065    :reader (read-minibuffer "Filter by predicate (form): "))
1066   (with-current-buffer buf
1067     (eval qualifier)))
1068
1069 ;;; Sorting
1070
1071 ;;;###autoload
1072 (defun ibuffer-toggle-sorting-mode ()
1073   "Toggle the current sorting mode.
1074 Default sorting modes are:
1075  Recency - the last time the buffer was viewed
1076  Name - the name of the buffer
1077  Major Mode - the name of the major mode of the buffer
1078  Size - the size of the buffer"
1079   (interactive)
1080   (let ((modes (mapcar 'car ibuffer-sorting-functions-alist)))
1081     (add-to-list 'modes 'recency)
1082     (setq modes (sort modes 'string-lessp))
1083     (let ((next (or (car-safe (cdr-safe (memq ibuffer-sorting-mode modes)))
1084                     (car modes))))
1085       (setq ibuffer-sorting-mode next)
1086       (message "Sorting by %s" next)))
1087   (ibuffer-redisplay t))
1088
1089 ;;;###autoload
1090 (defun ibuffer-invert-sorting ()
1091   "Toggle whether or not sorting is in reverse order."
1092   (interactive)
1093   (setq ibuffer-sorting-reversep (not ibuffer-sorting-reversep))
1094   (message "Sorting order %s"
1095            (if ibuffer-sorting-reversep
1096                "reversed"
1097              "normal"))
1098   (ibuffer-redisplay t))
1099
1100 ;;;###autoload (autoload 'ibuffer-do-sort-by-major-mode "ibuf-ext")
1101 (define-ibuffer-sorter major-mode
1102   "Sort the buffers by major modes.
1103 Ordering is lexicographic."
1104   (:description "major mode")
1105   (string-lessp (downcase
1106                  (symbol-name (with-current-buffer
1107                                   (car a)
1108                                 major-mode)))
1109                 (downcase
1110                  (symbol-name (with-current-buffer
1111                                   (car b)
1112                                 major-mode)))))
1113
1114 ;;;###autoload (autoload 'ibuffer-do-sort-by-mode-name "ibuf-ext")
1115 (define-ibuffer-sorter mode-name
1116   "Sort the buffers by their mode name.
1117 Ordering is lexicographic."
1118   (:description "major mode name")
1119   (string-lessp (downcase
1120                   (with-current-buffer
1121                       (car a)
1122                     mode-name))
1123                 (downcase
1124                  (with-current-buffer
1125                      (car b)
1126                    mode-name))))
1127
1128 ;;;###autoload (autoload 'ibuffer-do-sort-by-alphabetic "ibuf-ext")
1129 (define-ibuffer-sorter alphabetic
1130   "Sort the buffers by their names.
1131 Ordering is lexicographic."
1132   (:description "buffer name")
1133   (string-lessp
1134    (buffer-name (car a))
1135    (buffer-name (car b))))
1136
1137 ;;;###autoload (autoload 'ibuffer-do-sort-by-size "ibuf-ext")
1138 (define-ibuffer-sorter size
1139  "Sort the buffers by their size."
1140   (:description "size")
1141   (< (with-current-buffer (car a)
1142        (buffer-size))
1143      (with-current-buffer (car b)
1144        (buffer-size))))
1145
1146 ;;; Functions to emulate bs.el
1147
1148 ;;;###autoload
1149 (defun ibuffer-bs-show ()
1150   "Emulate `bs-show' from the bs.el package."
1151   (interactive)
1152   (ibuffer t "*Ibuffer-bs*" '((filename . ".*")) nil t)
1153   (define-key (current-local-map) "a" 'ibuffer-bs-toggle-all))
1154
1155 (defun ibuffer-bs-toggle-all ()
1156   "Emulate `bs-toggle-show-all' from the bs.el package."
1157   (interactive)
1158   (if ibuffer-filtering-qualifiers
1159       (ibuffer-pop-filter)
1160     (progn (ibuffer-push-filter '(filename . ".*"))
1161            (ibuffer-update nil t))))
1162
1163 ;;; Handy functions
1164
1165 ;;;###autoload
1166 (defun ibuffer-add-to-tmp-hide (regexp)
1167   "Add REGEXP to `ibuffer-tmp-hide-regexps'.
1168 This means that buffers whose name matches REGEXP will not be shown
1169 for this Ibuffer session."
1170   (interactive
1171    (list
1172     (read-from-minibuffer "Never show buffers matching: "
1173                           (regexp-quote (buffer-name (ibuffer-current-buffer t))))))
1174   (push regexp ibuffer-tmp-hide-regexps))
1175
1176 ;;;###autoload
1177 (defun ibuffer-add-to-tmp-show (regexp)
1178   "Add REGEXP to `ibuffer-tmp-show-regexps'.
1179 This means that buffers whose name matches REGEXP will always be shown
1180 for this Ibuffer session."
1181   (interactive
1182    (list
1183     (read-from-minibuffer "Always show buffers matching: "
1184                           (regexp-quote (buffer-name (ibuffer-current-buffer t))))))
1185   (push regexp ibuffer-tmp-show-regexps))
1186
1187 ;;;###autoload
1188 (defun ibuffer-forward-next-marked (&optional count mark direction)
1189   "Move forward by COUNT marked buffers (default 1).
1190
1191 If MARK is non-nil, it should be a character denoting the type of mark
1192 to move by.  The default is `ibuffer-marked-char'.
1193
1194 If DIRECTION is non-nil, it should be an integer; negative integers
1195 mean move backwards, non-negative integers mean move forwards."
1196   (interactive "P")
1197   (unless count
1198     (setq count 1))
1199   (unless mark
1200     (setq mark ibuffer-marked-char))
1201   (unless direction
1202     (setq direction 1))
1203   ;; Skip the title
1204   (ibuffer-forward-line 0)
1205   (let ((opos (point))
1206         curmark)
1207     (ibuffer-forward-line direction)
1208     (while (not (or (= (point) opos)
1209                     (eq (setq curmark (ibuffer-current-mark))
1210                         mark)))
1211       (ibuffer-forward-line direction))
1212     (when (and (= (point) opos)
1213                (not (eq (ibuffer-current-mark) mark)))
1214       (error "No buffers with mark %c" mark))))
1215
1216 ;;;###autoload
1217 (defun ibuffer-backwards-next-marked (&optional count mark)
1218    "Move backwards by COUNT marked buffers (default 1).
1219
1220 If MARK is non-nil, it should be a character denoting the type of mark
1221 to move by.  The default is `ibuffer-marked-char'."
1222    (interactive "P")
1223    (ibuffer-forward-next-marked count mark -1))
1224
1225 ;;;###autoload
1226 (defun ibuffer-do-kill-lines ()
1227   "Hide all of the currently marked lines."
1228   (interactive)
1229   (if (= (ibuffer-count-marked-lines) 0)
1230       (message "No buffers marked; use 'm' to mark a buffer")
1231     (let ((count
1232            (ibuffer-map-marked-lines
1233             #'(lambda (buf mark)
1234                 'kill))))
1235       (message "Killed %s lines" count))))
1236
1237 ;;;###autoload
1238 (defun ibuffer-jump-to-buffer (name)
1239   "Move point to the buffer whose name is NAME.
1240
1241 If called interactively, prompt for a buffer name and go to the
1242 corresponding line in the Ibuffer buffer.  If said buffer is in a
1243 hidden group filter, open it.
1244
1245 If `ibuffer-jump-offer-only-visible-buffers' is non-nil, only offer
1246 visible buffers in the completion list.  Calling the command with
1247 a prefix argument reverses the meaning of that variable."
1248   (interactive (list
1249                 (let ((only-visible ibuffer-jump-offer-only-visible-buffers))
1250                   (when current-prefix-arg
1251                     (setq only-visible (not only-visible)))
1252                   (if only-visible
1253                       (let ((table (mapcar #'(lambda (x)
1254                                                (buffer-name (car x)))
1255                                            (ibuffer-current-state-list))))
1256                         (when (null table)
1257                           (error "No buffers!"))
1258                         (completing-read "Jump to buffer: "
1259                                          table nil t))
1260                     (read-buffer "Jump to buffer: " nil t)))))
1261   (when (not (string= "" name))
1262     (let (buf-point)
1263       ;; Blindly search for our buffer: it is very likely that it is
1264       ;; not in a hidden filter group.
1265       (ibuffer-map-lines #'(lambda (buf marks)
1266                              (when (string= (buffer-name buf) name)
1267                                (setq buf-point (point))
1268                                nil))
1269                          t nil)
1270       (when (and
1271              (null buf-point)
1272              (not (null ibuffer-hidden-filter-groups)))
1273         ;; We did not find our buffer.  It must be in a hidden filter
1274         ;; group, so go through all hidden filter groups to find it.
1275         (catch 'found
1276           (dolist (group ibuffer-hidden-filter-groups)
1277             (ibuffer-jump-to-filter-group group)
1278             (ibuffer-toggle-filter-group)
1279             (ibuffer-map-lines #'(lambda (buf marks)
1280                                    (when (string= (buffer-name buf) name)
1281                                      (setq buf-point (point))
1282                                      nil))
1283                                t group)
1284             (if buf-point
1285                 (throw 'found nil)
1286               (ibuffer-toggle-filter-group)))))
1287       (if (null buf-point)
1288           ;; Still not found even though we expanded all hidden filter
1289           ;; groups: that must be because it's hidden by predicate:
1290           ;; we won't bother trying to display it.
1291           (error "No buffer with name %s" name)
1292         (goto-char buf-point)))))
1293
1294 ;;;###autoload
1295 (defun ibuffer-diff-with-file ()
1296   "View the differences between this buffer and its associated file.
1297 This requires the external program \"diff\" to be in your `exec-path'."
1298   (interactive)
1299   (let ((buf (ibuffer-current-buffer)))
1300     (unless (buffer-live-p buf)
1301       (error "Buffer %s has been killed" buf))
1302     (diff-buffer-with-file buf)))
1303
1304 ;;;###autoload
1305 (defun ibuffer-copy-filename-as-kill (&optional arg)
1306   "Copy filenames of marked buffers into the kill ring.
1307
1308 The names are separated by a space.
1309 If a buffer has no filename, it is ignored.
1310
1311 With no prefix arg, use the filename sans its directory of each marked file.
1312 With a zero prefix arg, use the complete filename of each marked file.
1313 With \\[universal-argument], use the filename of each marked file relative
1314 to `ibuffer-default-directory' iff non-nil, otherwise `default-directory'.
1315
1316 You can then feed the file name(s) to other commands with \\[yank]."
1317   (interactive "p")
1318   (if (zerop (ibuffer-count-marked-lines))
1319       (message "No buffers marked; use 'm' to mark a buffer")
1320     (let ((ibuffer-copy-filename-as-kill-result "")
1321           (type (cond ((zerop arg)
1322                        'full)
1323                       ((= arg 4)
1324                        'relative)
1325                       (t
1326                        'name))))
1327       (ibuffer-map-marked-lines
1328        #'(lambda (buf mark)
1329            (setq ibuffer-copy-filename-as-kill-result
1330                  (concat ibuffer-copy-filename-as-kill-result
1331                          (let ((name (buffer-file-name buf)))
1332                            (if name
1333                                (case type
1334                                  (full
1335                                   name)
1336                                  (relative
1337                                   (file-relative-name
1338                                    name (or ibuffer-default-directory
1339                                             default-directory)))
1340                                  (t
1341                                   (file-name-nondirectory name)))
1342                              ""))
1343                          " "))))
1344       (kill-new ibuffer-copy-filename-as-kill-result))))
1345
1346 (defun ibuffer-mark-on-buffer (func &optional ibuffer-mark-on-buffer-mark group)
1347   (let ((count
1348          (ibuffer-map-lines
1349           #'(lambda (buf mark)
1350               (when (funcall func buf)
1351                 (ibuffer-set-mark-1 (or ibuffer-mark-on-buffer-mark
1352                                         ibuffer-marked-char))
1353                 t))
1354           nil
1355           group)))
1356     (ibuffer-redisplay t)
1357     (message "Marked %s buffers" count)))
1358
1359 ;;;###autoload
1360 (defun ibuffer-mark-by-name-regexp (regexp)
1361   "Mark all buffers whose name matches REGEXP."
1362   (interactive "sMark by name (regexp): ")
1363   (ibuffer-mark-on-buffer
1364    #'(lambda (buf)
1365        (string-match regexp (buffer-name buf)))))
1366
1367 ;;;###autoload
1368 (defun ibuffer-mark-by-mode-regexp (regexp)
1369   "Mark all buffers whose major mode matches REGEXP."
1370   (interactive "sMark by major mode (regexp): ")
1371   (ibuffer-mark-on-buffer
1372    #'(lambda (buf)
1373        (with-current-buffer buf
1374          (string-match regexp mode-name)))))
1375
1376 ;;;###autoload
1377 (defun ibuffer-mark-by-file-name-regexp (regexp)
1378   "Mark all buffers whose file name matches REGEXP."
1379   (interactive "sMark by file name (regexp): ")
1380   (ibuffer-mark-on-buffer
1381    #'(lambda (buf)
1382        (let ((name (or (buffer-file-name buf)
1383                        (with-current-buffer buf
1384                          (and
1385                           (boundp 'dired-directory)
1386                           (stringp dired-directory)
1387                           dired-directory)))))
1388          (when name
1389            (string-match regexp name))))))
1390
1391 ;;;###autoload
1392 (defun ibuffer-mark-by-mode (mode)
1393   "Mark all buffers whose major mode equals MODE."
1394   (interactive
1395    (list (intern (completing-read "Mark by major mode: " obarray
1396                                   #'(lambda (e)
1397                                       ;; kind of a hack...
1398                                       (and (fboundp e)
1399                                            (string-match "-mode$"
1400                                                          (symbol-name e))))
1401                                   t
1402                                   (let ((buf (ibuffer-current-buffer)))
1403                                     (if (and buf (buffer-live-p buf))
1404                                         (with-current-buffer buf
1405                                           (cons (symbol-name major-mode)
1406                                                 0))
1407                                       ""))))))
1408   (ibuffer-mark-on-buffer
1409    #'(lambda (buf)
1410        (with-current-buffer buf
1411          (eq major-mode mode)))))
1412
1413 ;;;###autoload
1414 (defun ibuffer-mark-modified-buffers ()
1415   "Mark all modified buffers."
1416   (interactive)
1417   (ibuffer-mark-on-buffer
1418    #'(lambda (buf) (buffer-modified-p buf))))
1419
1420 ;;;###autoload
1421 (defun ibuffer-mark-unsaved-buffers ()
1422   "Mark all modified buffers that have an associated file."
1423   (interactive)
1424   (ibuffer-mark-on-buffer
1425    #'(lambda (buf) (and (with-current-buffer buf buffer-file-name)
1426                         (buffer-modified-p buf)))))
1427
1428 ;;;###autoload
1429 (defun ibuffer-mark-dissociated-buffers ()
1430   "Mark all buffers whose associated file does not exist."
1431   (interactive)
1432   (ibuffer-mark-on-buffer
1433    #'(lambda (buf)
1434        (with-current-buffer buf
1435          (or
1436           (and buffer-file-name
1437                (not (file-exists-p buffer-file-name)))
1438           (and (eq major-mode 'dired-mode)
1439                (boundp 'dired-directory)
1440                (stringp dired-directory)
1441                (not (file-exists-p (file-name-directory dired-directory)))))))))
1442
1443 ;;;###autoload
1444 (defun ibuffer-mark-help-buffers ()
1445   "Mark buffers like *Help*, *Apropos*, *Info*."
1446   (interactive)
1447   (ibuffer-mark-on-buffer
1448    #'(lambda (buf)
1449        (with-current-buffer buf
1450          (memq major-mode ibuffer-help-buffer-modes)))))
1451
1452 ;;;###autoload
1453 (defun ibuffer-mark-compressed-file-buffers ()
1454   "Mark buffers whose associated file is compressed."
1455   (interactive)
1456   (ibuffer-mark-on-buffer
1457    #'(lambda (buf)
1458        (with-current-buffer buf
1459          (and buffer-file-name
1460               (string-match ibuffer-compressed-file-name-regexp
1461                            buffer-file-name))))))
1462
1463 ;;;###autoload
1464 (defun ibuffer-mark-old-buffers ()
1465   "Mark buffers which have not been viewed in `ibuffer-old-time' days."
1466   (interactive)
1467   (ibuffer-mark-on-buffer
1468    #'(lambda (buf)
1469        (with-current-buffer buf
1470          ;; hacked from midnight.el
1471          (when buffer-display-time
1472            (let* ((tm (current-time))
1473                   (now (+ (* (float (ash 1 16)) (car tm))
1474                           (float (cadr tm)) (* 0.0000001 (caddr tm))))
1475                   (then (+ (* (float (ash 1 16))
1476                               (car buffer-display-time))
1477                            (float (cadr buffer-display-time))
1478                            (* 0.0000001 (caddr buffer-display-time)))))
1479              (> (- now then) (* 60 60 ibuffer-old-time))))))))
1480
1481 ;;;###autoload
1482 (defun ibuffer-mark-special-buffers ()
1483   "Mark all buffers whose name begins and ends with '*'."
1484   (interactive)
1485   (ibuffer-mark-on-buffer
1486    #'(lambda (buf) (string-match "^\\*.+\\*$"
1487                                  (buffer-name buf)))))
1488
1489 ;;;###autoload
1490 (defun ibuffer-mark-read-only-buffers ()
1491   "Mark all read-only buffers."
1492   (interactive)
1493   (ibuffer-mark-on-buffer
1494    #'(lambda (buf)
1495        (with-current-buffer buf
1496          buffer-read-only))))
1497
1498 ;;;###autoload
1499 (defun ibuffer-mark-dired-buffers ()
1500   "Mark all `dired' buffers."
1501   (interactive)
1502   (ibuffer-mark-on-buffer
1503    #'(lambda (buf)
1504        (with-current-buffer buf
1505          (eq major-mode 'dired-mode)))))
1506
1507 ;;;###autoload
1508 (defun ibuffer-do-occur (regexp &optional nlines)
1509   "View lines which match REGEXP in all marked buffers.
1510 Optional argument NLINES says how many lines of context to display: it
1511 defaults to one."
1512   (interactive (occur-read-primary-args))
1513   (if (or (not (integerp nlines))
1514           (< nlines 0))
1515       (setq nlines 0))
1516   (when (zerop (ibuffer-count-marked-lines))
1517     (ibuffer-set-mark ibuffer-marked-char))
1518   (let ((ibuffer-do-occur-bufs nil))
1519     ;; Accumulate a list of marked buffers
1520     (ibuffer-map-marked-lines
1521      #'(lambda (buf mark)
1522          (push buf ibuffer-do-occur-bufs)))
1523     (occur-1 regexp nlines ibuffer-do-occur-bufs)))
1524
1525 (provide 'ibuf-ext)
1526
1527 ;;; arch-tag: 9af21953-deda-4c30-b76d-f81d9128e76d
1528 ;;; ibuf-ext.el ends here