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193f8525da
emacs/lisp/ibuf-ext.el
Colin Walters 193f8525da (operation query-replace): Use new `noerror' arg for 
`query-replace-read-args'.
(operation query-replace-regexp): Ditto
2002-03-27 22:38:04 +00:00

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;;; ibuf-ext.el --- extensions for ibuffer -*-byte-compile-dynamic: t;-*-
;; Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
;; Author: Colin Walters <walters@verbum.org>
;; Created: 2 Dec 2001
;; Keywords: buffer, convenience
;; This file is not currently part of GNU Emacs.
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 2, or (at
;; your option) any later version.
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program ; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; These functions should be automatically loaded when called, but you
;; can explicity (require 'ibuf-ext) in your ~/.emacs to have them
;; preloaded.
;;; Code:
(require 'ibuffer)
(eval-when-compile
(require 'derived)
(require 'ibuf-macs)
(require 'cl))
;;; Utility functions
(defun ibuffer-delete-alist (key alist)
"Delete all entries in ALIST that have a key equal to KEY."
(let (entry)
(while (setq entry (assoc key alist))
(setq alist (delete entry alist)))
alist))
(defun ibuffer-depropertize-string (str &optional nocopy)
"Return a copy of STR with text properties removed.
If optional argument NOCOPY is non-nil, actually modify the string directly."
(let ((str (if nocopy
str
(copy-sequence str))))
(set-text-properties 0 (length str) nil str)
str))
(defcustom ibuffer-never-show-predicates nil
"A list of predicates (a regexp or function) for buffers not to display.
If a regexp, then it will be matched against the buffer's name.
If a function, it will be called with the buffer as an argument, and
should return non-nil if this buffer should not be shown."
:type '(repeat (choice regexp function))
:group 'ibuffer)
(defcustom ibuffer-always-show-predicates nil
"A list of predicates (a regexp or function) for buffers to always display.
If a regexp, then it will be matched against the buffer's name.
If a function, it will be called with the buffer as an argument, and
should return non-nil if this buffer should be shown.
Note that buffers matching one of these predicates will be shown
regardless of any active filters in this buffer."
:type '(repeat (choice regexp function))
:group 'ibuffer)
(defvar ibuffer-tmp-hide-regexps nil
"A list of regexps which should match buffer names to not show.")
(defvar ibuffer-tmp-show-regexps nil
"A list of regexps which should match buffer names to always show.")
(defvar ibuffer-auto-mode nil
"If non-nil, Ibuffer auto-mode should be enabled for this buffer.
Do not set this variable directly! Use the function
`ibuffer-auto-mode' instead.")
(defvar ibuffer-auto-buffers-changed nil)
(defcustom ibuffer-occur-match-face 'font-lock-warning-face
"Face used for displaying matched strings for `ibuffer-do-occur'."
:type 'face
:group 'ibuffer)
(defcustom ibuffer-saved-filters '(("gnus"
((or (mode . message-mode)
(mode . mail-mode)
(mode . gnus-group-mode)
(mode . gnus-summary-mode)
(mode . gnus-article-mode))))
("programming"
((or (mode . emacs-lisp-mode)
(mode . cperl-mode)
(mode . c-mode)
(mode . java-mode)
(mode . idl-mode)
(mode . lisp-mode)))))
"An alist of filter qualifiers to switch between.
This variable should look like ((\"STRING\" QUALIFIERS)
(\"STRING\" QUALIFIERS) ...), where
QUALIFIERS is a list of the same form as
`ibuffer-filtering-qualifiers'.
See also the variables `ibuffer-filtering-qualifiers',
`ibuffer-filtering-alist', and the functions
`ibuffer-switch-to-saved-filters', `ibuffer-save-filters'."
:type '(repeat sexp)
:group 'ibuffer)
(defvar ibuffer-filtering-qualifiers nil
"A list like (SYMBOL . QUALIFIER) which filters the current buffer list.
See also `ibuffer-filtering-alist'.")
;; This is now frobbed by `define-ibuffer-filter'.
(defvar ibuffer-filtering-alist nil
"An alist of (SYMBOL DESCRIPTION FUNCTION) which describes a filter.
You most likely do not want to modify this variable directly; see
`define-ibuffer-filter'.
SYMBOL is the symbolic name of the filter. DESCRIPTION is used when
displaying information to the user. FUNCTION is given a buffer and
the value of the qualifier, and returns non-nil if and only if the
buffer should be displayed.")
(defcustom ibuffer-filter-format-alist nil
"An alist which has special formats used when a filter is active.
The contents of this variable should look like:
((FILTER (FORMAT FORMAT ...)) (FILTER (FORMAT FORMAT ...)) ...)
For example, suppose that when you add a filter for buffers whose
major mode is `emacs-lisp-mode', you only want to see the mark and the
name of the buffer. You could accomplish that by adding:
(mode ((mark \" \" name)))
to this variable."
:type '(repeat (list :tag "Association" (symbol :tag "Filter")
(list :tag "Formats" (repeat (sexp :tag "Format")))))
:group 'ibuffer)
(defvar ibuffer-cached-filter-formats nil)
(defvar ibuffer-compiled-filter-formats nil)
(defcustom ibuffer-old-time 72
"The number of hours before a buffer is considered \"old\"."
:type '(choice (const :tag "72 hours (3 days)" 72)
(const :tag "48 hours (2 days)" 48)
(const :tag "24 hours (1 day)" 24)
(integer :tag "hours"))
:group 'ibuffer)
(defcustom ibuffer-save-with-custom t
"If non-nil, then use Custom to save interactively changed variables.
Currently, this only applies to `ibuffer-saved-filters'."
:type 'boolean
:group 'ibuffer)
(defun ibuffer-ext-visible-p (buf all &optional ibuffer-buf)
(or
(ibuffer-buf-matches-predicates buf ibuffer-tmp-show-regexps)
(and (not
(or
(ibuffer-buf-matches-predicates buf ibuffer-tmp-hide-regexps)
(ibuffer-buf-matches-predicates buf ibuffer-never-show-predicates)))
(or all
(not
(ibuffer-buf-matches-predicates buf ibuffer-maybe-show-predicates)))
(or ibuffer-view-ibuffer
(and ibuffer-buf
(not (eq ibuffer-buf buf))))
(or
(ibuffer-included-in-filters-p buf ibuffer-filtering-qualifiers)
(ibuffer-buf-matches-predicates buf ibuffer-always-show-predicates)))))
(defun ibuffer-auto-update-changed ()
(when ibuffer-auto-buffers-changed
(setq ibuffer-auto-buffers-changed nil)
(mapcar #'(lambda (buf)
(ignore-errors
(with-current-buffer buf
(when (and ibuffer-auto-mode
(eq major-mode 'ibuffer-mode))
(ibuffer-update nil t)))))
(buffer-list))))
;;;###autoload
(defun ibuffer-auto-mode (&optional arg)
"Toggle use of Ibuffer's auto-update facility.
With numeric ARG, enable auto-update if and only if ARG is positive."
(interactive)
(unless (eq major-mode 'ibuffer-mode)
(error "This buffer is not in Ibuffer mode"))
(set (make-local-variable 'ibuffer-auto-mode)
(if arg
(plusp arg)
(not ibuffer-auto-mode)))
(defadvice get-buffer-create (after ibuffer-notify-create activate)
(setq ibuffer-auto-buffers-changed t))
(defadvice kill-buffer (after ibuffer-notify-kill activate)
(setq ibuffer-auto-buffers-changed t))
(add-hook 'post-command-hook 'ibuffer-auto-update-changed)
(ibuffer-update-mode-name))
;;;###autoload
(defun ibuffer-mouse-filter-by-mode (event)
"Enable or disable filtering by the major mode chosen via mouse."
(interactive "e")
(ibuffer-interactive-filter-by-mode event))
;;;###autoload
(defun ibuffer-interactive-filter-by-mode (event-or-point)
"Enable or disable filtering by the major mode at point."
(interactive "d")
(if (eventp event-or-point)
(mouse-set-point event-or-point)
(goto-char event-or-point))
(let ((buf (ibuffer-current-buffer)))
(if (assq 'mode ibuffer-filtering-qualifiers)
(setq ibuffer-filtering-qualifiers
(ibuffer-delete-alist 'mode ibuffer-filtering-qualifiers))
(ibuffer-push-filter (cons 'mode
(with-current-buffer buf
major-mode)))))
(ibuffer-update nil t))
(define-ibuffer-op shell-command-pipe (command)
"Pipe the contents of each marked buffer to shell command COMMAND."
(:interactive "sPipe to shell command: "
:opstring "Shell command executed on"
:modifier-p nil)
(shell-command-on-region
(point-min) (point-max) command
(get-buffer-create "* ibuffer-shell-output*")))
(define-ibuffer-op shell-command-pipe-replace (command)
"Replace the contents of marked buffers with output of pipe to COMMAND."
(:interactive "sPipe to shell command (replace): "
:opstring "Buffer contents replaced in"
:active-opstring "replace buffer contents in"
:dangerous t
:modifier-p t)
(with-current-buffer buf
(shell-command-on-region (point-min) (point-max)
command nil t)))
(define-ibuffer-op shell-command-file (command)
"Run shell command COMMAND separately on files of marked buffers."
(:interactive "sShell command on buffer's file: "
:opstring "Shell command executed on"
:modifier-p nil)
(shell-command (concat command " "
(shell-quote-argument
(if buffer-file-name
buffer-file-name
(make-temp-file
(substring (buffer-name) 0 (min 10 (length (buffer-name))))))))))
(define-ibuffer-op eval (form)
"Evaluate FORM in each of the buffers.
Does not display the buffer during evaluation. See
`ibuffer-do-view-and-eval' for that."
(:interactive "xEval in buffers (form): "
:opstring "evaluated in"
:modifier-p :maybe)
(eval form))
(define-ibuffer-op view-and-eval (form)
"Evaluate FORM while displaying each of the marked buffers.
To evaluate a form without viewing the buffer, see `ibuffer-do-eval'."
(:interactive "xEval viewing buffers (form): "
:opstring "evaluated in"
:complex t
:modifier-p :maybe)
(let ((ibuffer-buf (current-buffer)))
(unwind-protect
(progn
(switch-to-buffer buf)
(eval form))
(switch-to-buffer ibuffer-buf))))
(define-ibuffer-op rename-uniquely ()
"Rename marked buffers as with `rename-uniquely'."
(:opstring "renamed"
:modifier-p t)
(rename-uniquely))
(define-ibuffer-op revert ()
"Revert marked buffers as with `revert-buffer'."
(:dangerous t
:opstring "reverted"
:active-opstring "revert"
:modifier-p :maybe)
(revert-buffer t t))
(define-ibuffer-op replace-regexp (from-str to-str)
"Perform a `replace-regexp' in marked buffers."
(:interactive
(let* ((from-str (read-from-minibuffer "Replace regexp: "))
(to-str (read-from-minibuffer (concat "Replace " from-str
" with: "))))
(list from-str to-str))
:opstring "replaced in"
:complex t
:modifier-p :maybe)
(save-window-excursion
(switch-to-buffer buf)
(save-excursion
(goto-char (point-min))
(let ((case-fold-search ibuffer-case-fold-search))
(while (re-search-forward from-str nil t)
(replace-match to-str))))
t))
(define-ibuffer-op query-replace (&rest args)
"Perform a `query-replace' in marked buffers."
(:interactive
(query-replace-read-args "Query replace" t t)
:opstring "replaced in"
:complex t
:modifier-p :maybe)
(save-window-excursion
(switch-to-buffer buf)
(save-excursion
(let ((case-fold-search ibuffer-case-fold-search))
(goto-char (point-min))
(apply #'query-replace args)))
t))
(define-ibuffer-op query-replace-regexp (&rest args)
"Perform a `query-replace-regexp' in marked buffers."
(:interactive
(query-replace-read-args "Query replace regexp" t t)
:opstring "replaced in"
:complex t
:modifier-p :maybe)
(save-window-excursion
(switch-to-buffer buf)
(save-excursion
(let ((case-fold-search ibuffer-case-fold-search))
(goto-char (point-min))
(apply #'query-replace-regexp args)))
t))
(define-ibuffer-op print ()
"Print marked buffers as with `print-buffer'."
(:opstring "printed"
:modifier-p nil)
(print-buffer))
;;;###autoload
(defun ibuffer-included-in-filters-p (buf filters)
(not
(memq nil ;; a filter will return nil if it failed
(mapcar
;; filter should be like (TYPE . QUALIFIER), or
;; (or (TYPE . QUALIFIER) (TYPE . QUALIFIER) ...)
#'(lambda (qual)
(ibuffer-included-in-filter-p buf qual))
filters))))
(defun ibuffer-included-in-filter-p (buf filter)
(if (eq (car filter) 'not)
(not (ibuffer-included-in-filter-p-1 buf (cdr filter)))
(ibuffer-included-in-filter-p-1 buf filter)))
(defun ibuffer-included-in-filter-p-1 (buf filter)
(not
(not
(case (car filter)
(or
(memq t (mapcar #'(lambda (x)
(ibuffer-included-in-filter-p buf x))
(cdr filter))))
(saved
(let ((data
(assoc (cdr filter)
ibuffer-saved-filters)))
(unless data
(ibuffer-filter-disable)
(error "Unknown saved filter %s" (cdr filter)))
(ibuffer-included-in-filters-p buf (cadr data))))
(t
(let ((filterdat (assq (car filter)
ibuffer-filtering-alist)))
;; filterdat should be like (TYPE DESCRIPTION FUNC)
;; just a sanity check
(unless filterdat
(ibuffer-filter-disable)
(error "Undefined filter %s" (car filter)))
(not
(not
(funcall (caddr filterdat)
buf
(cdr filter))))))))))
;;;###autoload
(defun ibuffer-filter-disable ()
"Disable all filters currently in effect in this buffer."
(interactive)
(setq ibuffer-filtering-qualifiers nil)
(ibuffer-update nil t))
;;;###autoload
(defun ibuffer-pop-filter ()
"Remove the top filter in this buffer."
(interactive)
(when (null ibuffer-filtering-qualifiers)
(error "No filters in effect"))
(pop ibuffer-filtering-qualifiers)
(ibuffer-update nil t))
(defun ibuffer-push-filter (qualifier)
"Add QUALIFIER to `ibuffer-filtering-qualifiers'."
(push qualifier ibuffer-filtering-qualifiers))
;;;###autoload
(defun ibuffer-decompose-filter ()
"Separate the top compound filter (OR, NOT, or SAVED) in this buffer.
This means that the topmost filter on the filtering stack, which must
be a complex filter like (OR [name: foo] [mode: bar-mode]), will be
turned into two separate filters [name: foo] and [mode: bar-mode]."
(interactive)
(when (null ibuffer-filtering-qualifiers)
(error "No filters in effect"))
(let ((lim (pop ibuffer-filtering-qualifiers)))
(case (car lim)
(or
(setq ibuffer-filtering-qualifiers (append
(cdr lim)
ibuffer-filtering-qualifiers)))
(saved
(let ((data
(assoc (cdr lim)
ibuffer-saved-filters)))
(unless data
(ibuffer-filter-disable)
(error "Unknown saved filter %s" (cdr lim)))
(setq ibuffer-filtering-qualifiers (append
(cadr data)
ibuffer-filtering-qualifiers))))
(not
(push (cdr lim)
ibuffer-filtering-qualifiers))
(t
(error "Filter type %s is not compound" (car lim)))))
(ibuffer-update nil t))
;;;###autoload
(defun ibuffer-exchange-filters ()
"Exchange the top two filters on the stack in this buffer."
(interactive)
(when (< (length ibuffer-filtering-qualifiers)
2)
(error "Need two filters to exchange"))
(let ((first (pop ibuffer-filtering-qualifiers))
(second (pop ibuffer-filtering-qualifiers)))
(push first ibuffer-filtering-qualifiers)
(push second ibuffer-filtering-qualifiers))
(ibuffer-update nil t))
;;;###autoload
(defun ibuffer-negate-filter ()
"Negate the sense of the top filter in the current buffer."
(interactive)
(when (null ibuffer-filtering-qualifiers)
(error "No filters in effect"))
(let ((lim (pop ibuffer-filtering-qualifiers)))
(push (if (eq (car lim) 'not)
(cdr lim)
(cons 'not lim))
ibuffer-filtering-qualifiers))
(ibuffer-update nil t))
;;;###autoload
(defun ibuffer-or-filter (&optional reverse)
"Replace the top two filters in this buffer with their logical OR.
If optional argument REVERSE is non-nil, instead break the top OR
filter into parts."
(interactive "P")
(if reverse
(progn
(when (or (null ibuffer-filtering-qualifiers)
(not (eq 'or (caar ibuffer-filtering-qualifiers))))
(error "Top filter is not an OR"))
(let ((lim (pop ibuffer-filtering-qualifiers)))
(setq ibuffer-filtering-qualifiers (nconc (cdr lim) ibuffer-filtering-qualifiers))))
(when (< (length ibuffer-filtering-qualifiers) 2)
(error "Need two filters to OR"))
;; If the second filter is an OR, just add to it.
(let ((first (pop ibuffer-filtering-qualifiers))
(second (pop ibuffer-filtering-qualifiers)))
(if (eq 'or (car second))
(push (nconc (list 'or first) (cdr second)) ibuffer-filtering-qualifiers)
(push (list 'or first second)
ibuffer-filtering-qualifiers))))
(ibuffer-update nil t))
(defun ibuffer-maybe-save-saved-filters ()
(when ibuffer-save-with-custom
(if (fboundp 'customize-save-variable)
(progn
(customize-save-variable 'ibuffer-saved-filters
ibuffer-saved-filters))
(message "Not saved permanently: Customize not available"))))
;;;###autoload
(defun ibuffer-save-filters (name filters)
"Save FILTERS in this buffer with name NAME in `ibuffer-saved-filters'.
Interactively, prompt for NAME, and use the current filters."
(interactive
(if (null ibuffer-filtering-qualifiers)
(error "No filters currently in effect")
(list
(read-from-minibuffer "Save current filters as: ")
ibuffer-filtering-qualifiers)))
(ibuffer-aif (assoc name ibuffer-saved-filters)
(setcdr it filters)
(push (list name filters) ibuffer-saved-filters))
(ibuffer-maybe-save-saved-filters)
(ibuffer-update-mode-name))
;;;###autoload
(defun ibuffer-delete-saved-filters (name)
"Delete saved filters with NAME from `ibuffer-saved-filters'."
(interactive
(list
(if (null ibuffer-saved-filters)
(error "No saved filters")
(completing-read "Delete saved filters: "
ibuffer-saved-filters nil t))))
(setq ibuffer-saved-filters
(ibuffer-delete-alist name ibuffer-saved-filters))
(ibuffer-maybe-save-saved-filters)
(ibuffer-update nil t))
;;;###autoload
(defun ibuffer-add-saved-filters (name)
"Add saved filters from `ibuffer-saved-filters' to this buffer's filters."
(interactive
(list
(if (null ibuffer-saved-filters)
(error "No saved filters")
(completing-read "Add saved filters: "
ibuffer-saved-filters nil t))))
(push (cons 'saved name) ibuffer-filtering-qualifiers)
(ibuffer-update nil t))
;;;###autoload
(defun ibuffer-switch-to-saved-filters (name)
"Set this buffer's filters to filters with NAME from `ibuffer-saved-filters'.
If prefix argument ADD is non-nil, then add the saved filters instead
of replacing the current filters."
(interactive
(list
(if (null ibuffer-saved-filters)
(error "No saved filters")
(completing-read "Switch to saved filters: "
ibuffer-saved-filters nil t))))
(setq ibuffer-filtering-qualifiers (list (cons 'saved name)))
(ibuffer-update nil t))
(defun ibuffer-format-qualifier (qualifier)
(if (eq (car-safe qualifier) 'not)
(concat " [NOT" (ibuffer-format-qualifier-1 (cdr qualifier)) "]")
(ibuffer-format-qualifier-1 qualifier)))
(defun ibuffer-format-qualifier-1 (qualifier)
(case (car qualifier)
(saved
(concat " [filter: " (cdr qualifier) "]"))
(or
(concat " [OR" (mapconcat #'ibuffer-format-qualifier
(cdr qualifier) "") "]"))
(t
(let ((type (assq (car qualifier) ibuffer-filtering-alist)))
(unless qualifier
(error "Ibuffer: bad qualifier %s" qualifier))
(concat " [" (cadr type) ": " (format "%s]" (cdr qualifier)))))))
;;; Extra operation definitions
(define-ibuffer-filter mode
"Toggle current view to buffers with major mode QUALIFIER."
(:description "major mode"
:reader
(intern
(completing-read "Filter by major mode: " obarray
#'(lambda (e)
(string-match "-mode$"
(symbol-name e)))
t
(let ((buf (ibuffer-current-buffer)))
(if (and buf (buffer-live-p buf))
(with-current-buffer buf
(symbol-name major-mode))
"")))))
(eq qualifier (with-current-buffer buf major-mode)))
(define-ibuffer-filter name
"Toggle current view to buffers with name matching QUALIFIER."
(:description "buffer name"
:reader
(read-from-minibuffer "Filter by name (regexp): "))
(string-match qualifier (buffer-name buf)))
(define-ibuffer-filter filename
"Toggle current view to buffers with filename matching QUALIFIER."
(:description "filename"
:reader
(read-from-minibuffer "Filter by filename (regexp): "))
(ibuffer-awhen (buffer-file-name buf)
(string-match qualifier it)))
(define-ibuffer-filter size-gt
"Toggle current view to buffers with size greater than QUALIFIER."
(:description "size greater than"
:reader
(string-to-number (read-from-minibuffer "Filter by size greater than: ")))
(> (with-current-buffer buf (buffer-size))
qualifier))
(define-ibuffer-filter size-lt
"Toggle current view to buffers with size less than QUALIFIER."
(:description "size less than"
:reader
(string-to-number (read-from-minibuffer "Filter by size less than: ")))
(< (with-current-buffer buf (buffer-size))
qualifier))
(define-ibuffer-filter content
"Toggle current view to buffers whose contents match QUALIFIER."
(:description "content"
:reader
(read-from-minibuffer "Filter by content (regexp): "))
(with-current-buffer buf
(save-excursion
(goto-char (point-min))
(re-search-forward qualifier nil t))))
(define-ibuffer-filter predicate
"Toggle current view to buffers for which QUALIFIER returns non-nil."
(:description "predicate"
:reader
(read-minibuffer "Filter by predicate (form): "))
(with-current-buffer buf
(eval qualifier)))
;;; Sorting
;;;###autoload
(defun ibuffer-toggle-sorting-mode ()
"Toggle the current sorting mode.
Default sorting modes are:
Recency - the last time the buffer was viewed
Name - the name of the buffer
Major Mode - the name of the major mode of the buffer
Size - the size of the buffer"
(interactive)
(let ((modes (mapcar 'car ibuffer-sorting-functions-alist)))
(add-to-list 'modes 'recency)
(setq modes (sort modes 'string-lessp))
(let ((next (or (car-safe (cdr-safe (memq ibuffer-sorting-mode modes)))
(car modes))))
(setq ibuffer-sorting-mode next)
(message "Sorting by %s" next)))
(ibuffer-redisplay t))
;;;###autoload
(defun ibuffer-invert-sorting ()
"Toggle whether or not sorting is in reverse order."
(interactive)
(setq ibuffer-sorting-reversep (not ibuffer-sorting-reversep))
(message "Sorting order %s"
(if ibuffer-sorting-reversep
"reversed"
"normal"))
(ibuffer-redisplay t))
(define-ibuffer-sorter major-mode
"Sort the buffers by major modes.
Ordering is lexicographic."
(:description "major mode")
(string-lessp (downcase
(symbol-name (with-current-buffer
(car a)
major-mode)))
(downcase
(symbol-name (with-current-buffer
(car b)
major-mode)))))
(define-ibuffer-sorter mode-name
"Sort the buffers by their mode name.
Ordering is lexicographic."
(:description "major mode name")
(string-lessp (downcase
(with-current-buffer
(car a)
mode-name))
(downcase
(with-current-buffer
(car b)
mode-name))))
(define-ibuffer-sorter alphabetic
"Sort the buffers by their names.
Ordering is lexicographic."
(:description "buffer name")
(string-lessp
(buffer-name (car a))
(buffer-name (car b))))
(define-ibuffer-sorter size
"Sort the buffers by their size."
(:description "size")
(< (with-current-buffer (car a)
(buffer-size))
(with-current-buffer (car b)
(buffer-size))))
;;; Functions to emulate bs.el
;;;###autoload
(defun ibuffer-bs-show ()
"Emulate `bs-show' from the bs.el package."
(interactive)
(ibuffer t "*Ibuffer-bs*" '((filename . ".*")) nil t)
(define-key (current-local-map) "a" 'ibuffer-bs-toggle-all))
(defun ibuffer-bs-toggle-all ()
"Emulate `bs-toggle-show-all' from the bs.el package."
(interactive)
(if ibuffer-filtering-qualifiers
(ibuffer-pop-filter)
(progn (ibuffer-push-filter '(filename . ".*"))
(ibuffer-update nil t))))
;;; Handy functions
;;;###autoload
(defun ibuffer-add-to-tmp-hide (regexp)
"Add REGEXP to `ibuffer-tmp-hide-regexps'.
This means that buffers whose name matches REGEXP will not be shown
for this ibuffer session."
(interactive
(list
(read-from-minibuffer "Never show buffers matching: "
(regexp-quote (buffer-name (ibuffer-current-buffer t))))))
(push regexp ibuffer-tmp-hide-regexps))
;;;###autoload
(defun ibuffer-add-to-tmp-show (regexp)
"Add REGEXP to `ibuffer-tmp-show-regexps'.
This means that buffers whose name matches REGEXP will always be shown
for this ibuffer session."
(interactive
(list
(read-from-minibuffer "Always show buffers matching: "
(regexp-quote (buffer-name (ibuffer-current-buffer t))))))
(push regexp ibuffer-tmp-show-regexps))
;;;###autoload
(defun ibuffer-forward-next-marked (&optional count mark direction)
"Move forward by COUNT marked buffers (default 1).
If MARK is non-nil, it should be a character denoting the type of mark
to move by. The default is `ibuffer-marked-char'.
If DIRECTION is non-nil, it should be an integer; negative integers
mean move backwards, non-negative integers mean move forwards."
(interactive "P")
(unless count
(setq count 1))
(unless mark
(setq mark ibuffer-marked-char))
(unless direction
(setq direction 1))
;; Skip the title
(ibuffer-forward-line 0)
(let ((opos (point))
curmark)
(ibuffer-forward-line direction)
(while (not (or (= (point) opos)
(eq (setq curmark (ibuffer-current-mark))
mark)))
(ibuffer-forward-line direction))
(when (and (= (point) opos)
(not (eq (ibuffer-current-mark) mark)))
(error "No buffers with mark %c" mark))))
;;;###autoload
(defun ibuffer-backwards-next-marked (&optional count mark)
"Move backwards by COUNT marked buffers (default 1).
If MARK is non-nil, it should be a character denoting the type of mark
to move by. The default is `ibuffer-marked-char'."
(interactive "P")
(ibuffer-forward-next-marked count mark -1))
;;;###autoload
(defun ibuffer-do-kill-lines ()
"Hide all of the currently marked lines."
(interactive)
(if (= (ibuffer-count-marked-lines) 0)
(message "No buffers marked; use 'm' to mark a buffer")
(let ((count
(ibuffer-map-marked-lines
#'(lambda (buf mark beg end)
'kill))))
(message "Killed %s lines" count))))
;;;###autoload
(defun ibuffer-jump-to-buffer (name)
"Move point to the buffer whose name is NAME."
(interactive (list nil))
(let ((table (mapcar #'(lambda (x)
(cons (buffer-name (car x))
(caddr x)))
(ibuffer-current-state-list t))))
(when (null table)
(error "No buffers!"))
(when (interactive-p)
(setq name (completing-read "Jump to buffer: " table nil t)))
(ibuffer-aif (assoc name table)
(goto-char (cdr it))
(error "No buffer with name %s" name))))
;;;###autoload
(defun ibuffer-diff-with-file ()
"View the differences between this buffer and its associated file.
This requires the external program \"diff\" to be in your `exec-path'."
(interactive)
(let* ((buf (ibuffer-current-buffer))
(buf-filename (with-current-buffer buf
buffer-file-name)))
(unless (buffer-live-p buf)
(error "Buffer %s has been killed" buf))
(unless buf-filename
(error "Buffer %s has no associated file" buf))
(let ((diff-buf (get-buffer-create "*Ibuffer-diff*")))
(with-current-buffer diff-buf
(setq buffer-read-only nil)
(erase-buffer))
(let ((tempfile (make-temp-file "ibuffer-diff-")))
(unwind-protect
(progn
(with-current-buffer buf
(write-region (point-min) (point-max) tempfile nil 'nomessage))
(if (zerop
(apply #'call-process "diff" nil diff-buf nil
(append
(when (and (boundp 'ediff-custom-diff-options)
(stringp ediff-custom-diff-options))
(list ediff-custom-diff-options))
(list buf-filename tempfile))))
(message "No differences found")
(progn
(with-current-buffer diff-buf
(goto-char (point-min))
(if (fboundp 'diff-mode)
(diff-mode)
(fundamental-mode)))
(display-buffer diff-buf))))
(when (file-exists-p tempfile)
(delete-file tempfile)))))
nil))
;;;###autoload
(defun ibuffer-copy-filename-as-kill (&optional arg)
"Copy filenames of marked buffers into the kill ring.
The names are separated by a space.
If a buffer has no filename, it is ignored.
With a zero prefix arg, use the complete pathname of each marked file.
You can then feed the file name(s) to other commands with C-y.
[ This docstring shamelessly stolen from the
`dired-copy-filename-as-kill' in \"dired-x\". ]"
;; Add to docstring later:
;; With C-u, use the relative pathname of each marked file.
(interactive "P")
(if (= (ibuffer-count-marked-lines) 0)
(message "No buffers marked; use 'm' to mark a buffer")
(let ((ibuffer-copy-filename-as-kill-result "")
(type (cond ((eql arg 0)
'full)
;; ((eql arg 4)
;; 'relative)
(t
'name))))
(ibuffer-map-marked-lines
#'(lambda (buf mark beg end)
(setq ibuffer-copy-filename-as-kill-result
(concat ibuffer-copy-filename-as-kill-result
(let ((name (buffer-file-name buf)))
(if name
(case type
(full
name)
(t
(file-name-nondirectory name)))
""))
" "))))
(push ibuffer-copy-filename-as-kill-result kill-ring))))
(defun ibuffer-mark-on-buffer (func)
(let ((count
(ibuffer-map-lines
#'(lambda (buf mark beg end)
(when (funcall func buf)
(ibuffer-set-mark-1 ibuffer-marked-char)
t)))))
(ibuffer-redisplay t)
(message "Marked %s buffers" count)))
;;;###autoload
(defun ibuffer-mark-by-name-regexp (regexp)
"Mark all buffers whose name matches REGEXP."
(interactive "sMark by name (regexp): ")
(ibuffer-mark-on-buffer
#'(lambda (buf)
(string-match regexp (buffer-name buf)))))
;;;###autoload
(defun ibuffer-mark-by-mode-regexp (regexp)
"Mark all buffers whose major mode matches REGEXP."
(interactive "sMark by major mode (regexp): ")
(ibuffer-mark-on-buffer
#'(lambda (buf)
(with-current-buffer buf
(string-match regexp mode-name)))))
;;;###autoload
(defun ibuffer-mark-by-file-name-regexp (regexp)
"Mark all buffers whose file name matches REGEXP."
(interactive "sMark by file name (regexp): ")
(ibuffer-mark-on-buffer
#'(lambda (buf)
(let ((name (or (buffer-file-name buf)
(with-current-buffer buf
(and
(boundp 'dired-directory)
(stringp dired-directory)
dired-directory)))))
(when name
(string-match regexp name))))))
;;;###autoload
(defun ibuffer-mark-by-mode (mode)
"Mark all buffers whose major mode equals MODE."
(interactive
(list (intern (completing-read "Mark by major mode: " obarray
#'(lambda (e)
;; kind of a hack...
(and (fboundp e)
(string-match "-mode$"
(symbol-name e))))
t
(let ((buf (ibuffer-current-buffer)))
(if (and buf (buffer-live-p buf))
(with-current-buffer buf
(cons (symbol-name major-mode)
0))
""))))))
(ibuffer-mark-on-buffer
#'(lambda (buf)
(with-current-buffer buf
(eq major-mode mode)))))
;;;###autoload
(defun ibuffer-mark-modified-buffers ()
"Mark all modified buffers."
(interactive)
(ibuffer-mark-on-buffer
#'(lambda (buf) (buffer-modified-p buf))))
;;;###autoload
(defun ibuffer-mark-unsaved-buffers ()
"Mark all modified buffers that have an associated file."
(interactive)
(ibuffer-mark-on-buffer
#'(lambda (buf) (and (with-current-buffer buf buffer-file-name)
(buffer-modified-p buf)))))
;;;###autoload
(defun ibuffer-mark-dissociated-buffers ()
"Mark all buffers whose associated file does not exist."
(interactive)
(ibuffer-mark-on-buffer
#'(lambda (buf)
(with-current-buffer buf
(or
(and buffer-file-name
(not (file-exists-p buffer-file-name)))
(and (eq major-mode 'dired-mode)
(boundp 'dired-directory)
(stringp dired-directory)
(not (file-exists-p (file-name-directory dired-directory)))))))))
;;;###autoload
(defun ibuffer-mark-help-buffers ()
"Mark buffers like *Help*, *Apropos*, *Info*."
(interactive)
(ibuffer-mark-on-buffer
#'(lambda (buf)
(with-current-buffer buf
(memq major-mode ibuffer-help-buffer-modes)))))
;;;###autoload
(defun ibuffer-mark-old-buffers ()
"Mark buffers which have not been viewed in `ibuffer-old-time' days."
(interactive)
(ibuffer-mark-on-buffer
#'(lambda (buf)
(with-current-buffer buf
;; hacked from midnight.el
(when buffer-display-time
(let* ((tm (current-time))
(now (+ (* (float (ash 1 16)) (car tm))
(float (cadr tm)) (* 0.0000001 (caddr tm))))
(then (+ (* (float (ash 1 16))
(car buffer-display-time))
(float (cadr buffer-display-time))
(* 0.0000001 (caddr buffer-display-time)))))
(> (- now then) (* 60 60 ibuffer-old-time))))))))
;;;###autoload
(defun ibuffer-mark-special-buffers ()
"Mark all buffers whose name begins and ends with '*'."
(interactive)
(ibuffer-mark-on-buffer
#'(lambda (buf) (string-match "^\\*.+\\*$"
(buffer-name buf)))))
;;;###autoload
(defun ibuffer-mark-read-only-buffers ()
"Mark all read-only buffers."
(interactive)
(ibuffer-mark-on-buffer
#'(lambda (buf)
(with-current-buffer buf
buffer-read-only))))
;;;###autoload
(defun ibuffer-mark-dired-buffers ()
"Mark all `dired' buffers."
(interactive)
(ibuffer-mark-on-buffer
#'(lambda (buf)
(with-current-buffer buf
(eq major-mode 'dired-mode)))))
;;; An implementation of multi-buffer `occur'
(defvar ibuffer-occur-props nil)
(define-derived-mode ibuffer-occur-mode occur-mode "Ibuffer-Occur"
"A special form of Occur mode for multiple buffers.
Note this major mode is not meant for interactive use!
See also `occur-mode'."
(define-key ibuffer-occur-mode-map (kbd "n") 'forward-line)
(define-key ibuffer-occur-mode-map (kbd "q") 'bury-buffer)
(define-key ibuffer-occur-mode-map (kbd "p") 'previous-line)
(define-key ibuffer-occur-mode-map (kbd "RET") 'ibuffer-occur-display-occurence)
(define-key ibuffer-occur-mode-map (kbd "f") 'ibuffer-occur-goto-occurence)
(define-key ibuffer-occur-mode-map [(mouse-2)] 'ibuffer-occur-mouse-display-occurence)
(set (make-local-variable 'revert-buffer-function)
#'ibuffer-occur-revert-buffer-function)
(set (make-local-variable 'ibuffer-occur-props) nil)
(setq buffer-read-only nil)
(erase-buffer)
(setq buffer-read-only t)
(message (concat
"Use RET "
(if (or (and (< 21 emacs-major-version)
window-system)
(featurep 'mouse))
"or mouse-2 ")
"to display an occurence.")))
(defun ibuffer-occur-mouse-display-occurence (e)
"Display occurence on this line in another window."
(interactive "e")
(let* ((occurbuf (save-window-excursion (mouse-select-window e)
(selected-window)))
(target (with-current-buffer occurbuf
(get-text-property (save-excursion
(mouse-set-point e)
(point))
'ibuffer-occur-target))))
(unless target
(error "No occurence on this line"))
(let ((buf (car target))
(line (cdr target)))
(switch-to-buffer occurbuf)
(delete-other-windows)
(pop-to-buffer buf)
(goto-line line))))
(defun ibuffer-occur-goto-occurence ()
"Switch to the buffer which has the occurence on this line."
(interactive)
(ibuffer-occur-display-occurence t))
(defun ibuffer-occur-display-occurence (&optional goto)
"Display occurence on this line in another window."
(interactive "P")
(let ((target (get-text-property (point) 'ibuffer-occur-target)))
(unless target
(error "No occurence on this line"))
(let ((buf (car target))
(line (cdr target)))
(delete-other-windows)
(if goto
(switch-to-buffer buf)
(pop-to-buffer buf))
(goto-line line))))
;;;###autoload
(defun ibuffer-do-occur (regexp &optional nlines)
"View lines which match REGEXP in all marked buffers.
Optional argument NLINES says how many lines of context to display: it
defaults to one."
(interactive
(list (let* ((default (car regexp-history))
(input
(read-from-minibuffer
(if default
(format "List lines matching regexp (default `%s'): "
default)
"List lines matching regexp: ")
nil
nil
nil
'regexp-history)))
(if (equal input "")
default
input))
current-prefix-arg))
(if (or (not (integerp nlines))
(< nlines 0))
(setq nlines 1))
(when (zerop (ibuffer-count-marked-lines))
(ibuffer-set-mark ibuffer-marked-char))
(let ((ibuffer-do-occur-bufs nil))
;; Accumulate a list of marked buffers
(ibuffer-map-marked-lines
#'(lambda (buf mark beg end)
(push buf ibuffer-do-occur-bufs)))
(ibuffer-do-occur-1 regexp ibuffer-do-occur-bufs
(get-buffer-create "*Ibuffer-occur*")
nlines)))
(defun ibuffer-do-occur-1 (regexp buffers out-buf nlines)
(let ((count (ibuffer-occur-engine regexp buffers out-buf nlines)))
(if (> count 0)
(progn
(switch-to-buffer out-buf)
(setq buffer-read-only t)
(delete-other-windows)
(goto-char (point-min))
(message "Found %s matches in %s buffers" count (length buffers)))
(message "No matches found"))))
(defun ibuffer-occur-revert-buffer-function (ignore-auto noconfirm)
"Update the *Ibuffer occur* buffer."
(assert (eq major-mode 'ibuffer-occur-mode))
(ibuffer-do-occur-1 (car ibuffer-occur-props)
(cadr ibuffer-occur-props)
(current-buffer)
(caddr ibuffer-occur-props)))
(defun ibuffer-occur-engine (regexp buffers out-buf nlines)
(macrolet ((insert-get-point
(&rest args)
`(progn
(insert ,@args)
(point)))
(maybe-put-overlay
(over prop value)
`(when (ibuffer-use-fontification)
(overlay-put ,over ,prop ,value)))
(maybe-ibuffer-propertize
(obj &rest args)
(let ((objsym (gensym "--maybe-ibuffer-propertize-")))
`(let ((,objsym ,obj))
(if (ibuffer-use-fontification)
(propertize ,objsym ,@args)
,objsym)))))
(with-current-buffer out-buf
(ibuffer-occur-mode)
(setq buffer-read-only nil)
(let ((globalcount 0))
;; Map over all the buffers
(dolist (buf buffers)
(when (buffer-live-p buf)
(let ((c 0) ;; count of matched lines
(l 1) ;; line count
(headerpt (with-current-buffer out-buf (point))))
(save-excursion
(set-buffer buf)
(save-excursion
(goto-char (point-min)) ;; begin searching in the buffer
(while (not (eobp))
;; The line we're matching against
(let ((curline (buffer-substring
(line-beginning-position)
(line-end-position))))
(when (string-match regexp curline)
(incf c) ;; increment match count
(incf globalcount)
;; Depropertize the string, and maybe highlight the matches
(setq curline
(progn
(ibuffer-depropertize-string curline t)
(when (ibuffer-use-fontification)
(let ((len (length curline))
(start 0))
(while (and (< start len)
(string-match regexp curline start))
(put-text-property (match-beginning 0)
(match-end 0)
'face ibuffer-occur-match-face
curline)
(setq start (match-end 0)))))
curline))
;; Generate the string to insert for this match
(let ((data
(if (= nlines 1)
;; The simple display style
(concat (maybe-ibuffer-propertize
(format "%-6d:" l)
'face 'bold)
curline
"\n")
;; The complex multi-line display style
(let ((prevlines (nreverse
(ibuffer-accumulate-lines (- nlines))))
(nextlines (ibuffer-accumulate-lines nlines))
;; The lack of `flet' seriously sucks.
(fun #'(lambda (lines)
(mapcar
#'(lambda (line)
(concat " :" line "\n"))
lines))))
(setq prevlines (funcall fun prevlines))
(setq nextlines (funcall fun nextlines))
;; Yes, I am trying to win the award for the
;; most consing.
(apply #'concat
(nconc
prevlines
(list
(concat
(maybe-ibuffer-propertize
(format "%-6d" l)
'face 'bold)
":"
curline
"\n"))
nextlines))))))
;; Actually insert the match display data
(with-current-buffer out-buf
(let ((beg (point))
(end (insert-get-point
data)))
(unless (= nlines 1)
(insert "-------\n"))
(put-text-property
beg (1- end) 'ibuffer-occur-target (cons buf l))
(put-text-property
beg (1- end) 'mouse-face 'highlight))))))
;; On to the next line...
(incf l)
(forward-line 1))))
(when (not (zerop c)) ;; is the count zero?
(with-current-buffer out-buf
(goto-char headerpt)
(let ((beg (point))
(end (insert-get-point
(format "%d lines matching \"%s\" in buffer %s\n"
c regexp (buffer-name buf)))))
(let ((o (make-overlay beg end)))
(maybe-put-overlay o 'face 'underline)))
(goto-char (point-max)))))))
(setq ibuffer-occur-props (list regexp buffers nlines))
;; Return the number of matches
globalcount))))
(provide 'ibuf-ext)
;;; ibuf-ext.el ends here
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