If N is negative, delete newlines as well, leaving -N spaces.
See also `cycle-spacing'."
(interactive "*p")
- (cycle-spacing n nil t))
+ (cycle-spacing n nil 'single-shot))
(defvar cycle-spacing--context nil
"Store context used in consecutive calls to `cycle-spacing' command.
-The first time this function is run, it saves the original point
-position and original spacing around the point in this
-variable.")
+The first time this function is run, it saves N argument, the
+original point position and original spacing around the point in
+this variable.")
-(defun cycle-spacing (&optional n preserve-nl-back single-shot)
+(defun cycle-spacing (&optional n preserve-nl-back mode)
"Manipulate whitespace around point in a smart way.
-In interactive use, this function behaves differently in successive
-consecutive calls.
+In interactive use, this function behaves differently in
+successive consecutive calls.
-The first call in a sequence acts like `just-one-space'.
-It deletes all spaces and tabs around point, leaving one space
-\(or N spaces). N is the prefix argument. If N is negative,
-it deletes newlines as well, leaving -N spaces.
-\(If PRESERVE-NL-BACK is non-nil, it does not delete newlines before point.)
+The first call in a sequence acts like `just-one-space'. It
+deletes all spaces and tabs around point, leaving one space \(or
+N spaces). N is the prefix argument. If N is negative, it
+deletes newlines as well leaving -N spaces. (If PRESERVE-NL-BACK
+is non-nil, it does not delete newlines before point.)
-The second call in a sequence (or the first call if the above does
-not result in any changes) deletes all spaces.
+The second call in a sequence deletes all spaces.
-The third call in a sequence restores the original whitespace (and point).
+The third call in a sequence restores the original
+whitespace (and point).
-If SINGLE-SHOT is non-nil, it only performs the first step in the sequence."
+If MODE is 'single-shot only the first step is performed. If
+MODE is 'fast and the first step did not result in any
+change (i.e. there was exactly (abs N) spaces around point)
+function goes to the second step immediately.
+
+Running the function with different N arguments initiates a new
+sequence each time."
(interactive "*p")
(let ((orig-pos (point))
(skip-characters (if (and n (< n 0)) " \t\n\r" " \t"))
- (n (abs (or n 1))))
+ (num (abs (or n 1))))
(skip-chars-backward (if preserve-nl-back " \t" skip-characters))
(constrain-to-field nil orig-pos)
(cond
- ;; Command run for the first time or single-shot is non-nil.
- ((or single-shot
+ ;; Command run for the first time, single-shot mode or different argument
+ ((or (eq 'single-shot mode)
(not (equal last-command this-command))
- (not cycle-spacing--context))
+ (not cycle-spacing--context)
+ (not (eq (car cycle-spacing--context) n)))
(let* ((start (point))
- (n (- n (skip-chars-forward " " (+ n (point)))))
+ (num (- num (skip-chars-forward " " (+ num (point)))))
(mid (point))
(end (progn
(skip-chars-forward skip-characters)
(setq cycle-spacing--context ;; Save for later.
;; Special handling for case where there was no space at all.
(unless (= start end)
- (cons orig-pos (buffer-substring start (point)))))
+ (cons n (cons orig-pos (buffer-substring start (point))))))
;; If this run causes no change in buffer content, delete all spaces,
;; otherwise delete all excess spaces.
- (delete-region (if (and (not single-shot) (zerop n) (= mid end))
+ (delete-region (if (and (eq mode 'fast) (zerop num) (= mid end))
start mid) end)
- (insert (make-string n ?\s))))
+ (insert (make-string num ?\s))))
;; Command run for the second time.
((not (equal orig-pos (point)))
;; Command run for the third time.
(t
- (insert (cdr cycle-spacing--context))
- (goto-char (car cycle-spacing--context))
+ (insert (cddr cycle-spacing--context))
+ (goto-char (cadr cycle-spacing--context))
(setq cycle-spacing--context nil)))))
\f
(defun beginning-of-buffer (&optional arg)
accessible part of the buffer.
If Transient Mark mode is disabled, leave mark at previous
-position, unless a \\[universal-argument] prefix is supplied.
-
-Don't use this command in Lisp programs!
-\(goto-char (point-min)) is faster."
+position, unless a \\[universal-argument] prefix is supplied."
(declare (interactive-only "use `(goto-char (point-min))' instead."))
(interactive "^P")
(or (consp arg)
accessible part of the buffer.
If Transient Mark mode is disabled, leave mark at previous
-position, unless a \\[universal-argument] prefix is supplied.
-
-Don't use this command in Lisp programs!
-\(goto-char (point-max)) is faster."
+position, unless a \\[universal-argument] prefix is supplied."
(declare (interactive-only "use `(goto-char (point-max))' instead."))
(interactive "^P")
(or (consp arg) (region-active-p) (push-mark))
You probably should not use this function in Lisp programs;
it is usually a mistake for a Lisp function to use any subroutine
that uses or sets the mark."
+ (declare (interactive-only t))
(interactive)
(push-mark (point))
(push-mark (point-max) nil t)
(when (let ((apos (abs pos)))
(or (< apos (point-min)) (> apos (point-max))))
(error "Changes to be undone are outside visible portion of buffer"))
- (if (< pos 0)
- (progn
- (goto-char (- pos))
- (insert string))
- (goto-char pos)
- ;; Now that we record marker adjustments
- ;; (caused by deletion) for undo,
- ;; we should always insert after markers,
- ;; so that undoing the marker adjustments
- ;; put the markers back in the right place.
- (insert string)
- (goto-char pos)))
+ (let (valid-marker-adjustments)
+ ;; Check that marker adjustments which were recorded
+ ;; with the (STRING . POS) record are still valid, ie
+ ;; the markers haven't moved. We check their validity
+ ;; before reinserting the string so as we don't need to
+ ;; mind marker insertion-type.
+ (while (and (markerp (car-safe (car list)))
+ (integerp (cdr-safe (car list))))
+ (let* ((marker-adj (pop list))
+ (m (car marker-adj)))
+ (and (eq (marker-buffer m) (current-buffer))
+ (= pos m)
+ (push marker-adj valid-marker-adjustments))))
+ ;; Insert string and adjust point
+ (if (< pos 0)
+ (progn
+ (goto-char (- pos))
+ (insert string))
+ (goto-char pos)
+ (insert string)
+ (goto-char pos))
+ ;; Adjust the valid marker adjustments
+ (dolist (adj valid-marker-adjustments)
+ (set-marker (car adj)
+ (- (car adj) (cdr adj))))))
;; (MARKER . OFFSET) means a marker MARKER was adjusted by OFFSET.
(`(,(and marker (pred markerp)) . ,(and offset (pred integerp)))
+ (warn "Encountered %S entry in undo list with no matching (TEXT . POS) entry"
+ next)
+ ;; Even though these elements are not expected in the undo
+ ;; list, adjust them to be conservative for the 24.4
+ ;; release. (Bug#16818)
(when (marker-buffer marker)
(set-marker marker
(- marker offset)
(undo-make-selective-list (min beg end) (max beg end))
buffer-undo-list)))
-(defvar undo-adjusted-markers)
-
(defun undo-make-selective-list (start end)
"Return a list of undo elements for the region START to END.
The elements come from `buffer-undo-list', but we keep only
we stop and ignore all further elements."
(let ((undo-list-copy (undo-copy-list buffer-undo-list))
(undo-list (list nil))
- undo-adjusted-markers
some-rejected
undo-elt temp-undo-list delta)
(while undo-list-copy
;; This is a "was unmodified" element.
;; Keep it if we have kept everything thus far.
(not some-rejected))
+ ;; Skip over marker adjustments, instead relying on
+ ;; finding them after (TEXT . POS) elements
+ ((markerp (car-safe undo-elt))
+ nil)
(t
(undo-elt-in-region undo-elt start end)))))
(if keep-this
(progn
(setq end (+ end (cdr (undo-delta undo-elt))))
;; Don't put two nils together in the list
- (if (not (and (eq (car undo-list) nil)
- (eq undo-elt nil)))
- (setq undo-list (cons undo-elt undo-list))))
+ (when (not (and (eq (car undo-list) nil)
+ (eq undo-elt nil)))
+ (setq undo-list (cons undo-elt undo-list))
+ ;; If (TEXT . POS), "keep" its subsequent (MARKER
+ ;; . ADJUSTMENT) whose markers haven't moved.
+ (when (and (stringp (car-safe undo-elt))
+ (integerp (cdr-safe undo-elt)))
+ (let ((list-i (cdr undo-list-copy)))
+ (while (markerp (car-safe (car list-i)))
+ (let* ((adj-elt (pop list-i))
+ (m (car adj-elt)))
+ (and (eq (marker-buffer m) (current-buffer))
+ (= (cdr undo-elt) m)
+ (push adj-elt undo-list))))))))
(if (undo-elt-crosses-region undo-elt start end)
(setq undo-list-copy nil)
(setq some-rejected t)
(defun undo-elt-in-region (undo-elt start end)
"Determine whether UNDO-ELT falls inside the region START ... END.
-If it crosses the edge, we return nil."
+If it crosses the edge, we return nil.
+
+Generally this function is not useful for determining
+whether (MARKER . ADJUSTMENT) undo elements are in the region,
+because markers can be arbitrarily relocated. Instead, pass the
+marker adjustment's corresponding (TEXT . POS) element."
(cond ((integerp undo-elt)
(and (>= undo-elt start)
(<= undo-elt end)))
(and (>= (abs (cdr undo-elt)) start)
(<= (abs (cdr undo-elt)) end)))
((and (consp undo-elt) (markerp (car undo-elt)))
- ;; This is a marker-adjustment element (MARKER . ADJUSTMENT).
- ;; See if MARKER is inside the region.
- (let ((alist-elt (assq (car undo-elt) undo-adjusted-markers)))
- (unless alist-elt
- (setq alist-elt (cons (car undo-elt)
- (marker-position (car undo-elt))))
- (setq undo-adjusted-markers
- (cons alist-elt undo-adjusted-markers)))
- (and (cdr alist-elt)
- (>= (cdr alist-elt) start)
- (<= (cdr alist-elt) end))))
+ ;; (MARKER . ADJUSTMENT)
+ (<= start (car undo-elt) end))
((null (car undo-elt))
;; (nil PROPERTY VALUE BEG . END)
(let ((tail (nthcdr 3 undo-elt)))
(defvar process-menu-query-only nil)
+(defvar process-menu-mode-map
+ (let ((map (make-sparse-keymap)))
+ (define-key map [?d] 'process-menu-delete-process)
+ map))
+
(define-derived-mode process-menu-mode tabulated-list-mode "Process Menu"
"Major mode for listing the processes called by Emacs."
(setq tabulated-list-format [("Process" 15 t)
(add-hook 'tabulated-list-revert-hook 'list-processes--refresh nil t)
(tabulated-list-init-header))
+(defun process-menu-delete-process ()
+ "Kill process at point in a `list-processes' buffer."
+ (interactive)
+ (delete-process (tabulated-list-get-id))
+ (revert-buffer))
+
(defun list-processes--refresh ()
"Recompute the list of processes for the Process List buffer.
Also, delete any process that is exited or signaled."
(defun insert-buffer (buffer)
"Insert after point the contents of BUFFER.
Puts mark after the inserted text.
-BUFFER may be a buffer or a buffer name.
-
-This function is meant for the user to run interactively.
-Don't call it from programs: use `insert-buffer-substring' instead!"
+BUFFER may be a buffer or a buffer name."
(declare (interactive-only insert-buffer-substring))
(interactive
(list
(funcall redisplay-unhighlight-region-function rol)
(overlay-put nrol 'window window)
(overlay-put nrol 'face 'region)
+ ;; Normal priority so that a large region doesn't hide all the
+ ;; overlays within it, but high secondary priority so that if it
+ ;; ends/starts in the middle of a small overlay, that small overlay
+ ;; won't hide the region's boundaries.
+ (overlay-put nrol 'priority '(nil . 100))
nrol)
(unless (and (eq (overlay-buffer rol) (current-buffer))
(eq (overlay-start rol) start)
The goal column is stored in the variable `goal-column', which is nil
when there is no goal column. Note that setting `goal-column'
overrides `line-move-visual' and causes this command to move by buffer
-lines rather than by display lines.
-
-If you are thinking of using this in a Lisp program, consider
-using `forward-line' instead. It is usually easier to use
-and more reliable (no dependence on goal column, etc.)."
+lines rather than by display lines."
(declare (interactive-only forward-line))
(interactive "^p\np")
(or arg (setq arg 1))
The goal column is stored in the variable `goal-column', which is nil
when there is no goal column. Note that setting `goal-column'
overrides `line-move-visual' and causes this command to move by buffer
-lines rather than by display lines.
-
-If you are thinking of using this in a Lisp program, consider using
-`forward-line' with a negative argument instead. It is usually easier
-to use and more reliable (no dependence on goal column, etc.)."
+lines rather than by display lines."
(declare (interactive-only
"use `forward-line' with negative argument instead."))
(interactive "^p\np")
(deactivate-mark))
(if (fboundp 'kmacro-keyboard-quit)
(kmacro-keyboard-quit))
+ (when completion-in-region-mode
+ (completion-in-region-mode -1))
(setq defining-kbd-macro nil)
(let ((debug-on-quit nil))
(signal 'quit nil)))
command-name)))))))
\f
-;; This is here because files in obsolete/ are not scanned for autoloads.
-
-(defvar iswitchb-mode nil "\
-Non-nil if Iswitchb mode is enabled.
-See the command `iswitchb-mode' for a description of this minor mode.
-Setting this variable directly does not take effect;
-either customize it (see the info node `Easy Customization')
-or call the function `iswitchb-mode'.")
-
-(custom-autoload 'iswitchb-mode "iswitchb" nil)
-
-(autoload 'iswitchb-mode "iswitchb" "\
-Toggle Iswitchb mode.
-With a prefix argument ARG, enable Iswitchb mode if ARG is
-positive, and disable it otherwise. If called from Lisp, enable
-the mode if ARG is omitted or nil.
-
-Iswitchb mode is a global minor mode that enables switching
-between buffers using substrings. See `iswitchb' for details.
-
-\(fn &optional ARG)" t nil)
-
-(make-obsolete 'iswitchb-mode
- "use `icomplete-mode' or `ido-mode' instead." "24.4")
-\f
(provide 'simple)
HCoop / bpt / emacs.git / blobdiff