C-l to clear the screen, redisplay, and offer same replacement again,
! to replace all remaining matches in this buffer with no more questions,
^ to move point back to previous match,
+u to undo previous replacement,
+U to undo all replacements,
E to edit the replacement string.
In multi-buffer replacements type `Y' to replace all remaining
matches in all remaining buffers with no more questions,
(define-key map "\C-l" 'recenter)
(define-key map "!" 'automatic)
(define-key map "^" 'backup)
+ (define-key map "u" 'undo)
+ (define-key map "U" 'undo-all)
(define-key map "\C-h" 'help)
(define-key map [f1] 'help)
(define-key map [help] 'help)
`act-and-exit', `exit', `exit-prefix', `recenter', `scroll-up',
`scroll-down', `scroll-other-window', `scroll-other-window-down',
`edit', `edit-replacement', `delete-and-edit', `automatic',
-`backup', `quit', and `help'.
+`backup', `undo', `undo-all', `quit', and `help'.
This keymap is used by `y-or-n-p' as well as `query-replace'.")
(noedit nil)
(keep-going t)
(stack nil)
+ (search-string-replaced nil) ; last string matching `from-string'
+ (next-replacement-replaced nil) ; replacement string
+ ; (substituted regexp)
+ (last-was-undo)
(replace-count 0)
(skip-read-only-count 0)
(skip-filtered-count 0)
(match-beginning 0) (match-end 0)
start end search-string
regexp-flag delimited-flag case-fold-search backward)
- ;; Bind message-log-max so we don't fill up the message log
- ;; with a bunch of identical messages.
+ ;; Obtain the matched groups: needed only when
+ ;; regexp-flag non nil.
+ (when (and last-was-undo regexp-flag)
+ (setq last-was-undo nil
+ real-match-data
+ (save-excursion
+ (goto-char (match-beginning 0))
+ (looking-at search-string)
+ (match-data t real-match-data))))
+ ;; Matched string and next-replacement-replaced
+ ;; stored in stack.
+ (setq search-string-replaced (buffer-substring-no-properties
+ (match-beginning 0)
+ (match-end 0))
+ next-replacement-replaced
+ (query-replace-descr
+ (save-match-data
+ (set-match-data real-match-data)
+ (match-substitute-replacement
+ next-replacement nocasify literal))))
+ ;; Bind message-log-max so we don't fill up the
+ ;; message log with a bunch of identical messages.
(let ((message-log-max nil)
(replacement-presentation
(if query-replace-show-replacement
(query-replace-descr from-string)
(query-replace-descr replacement-presentation)))
(setq key (read-event))
- ;; Necessary in case something happens during read-event
- ;; that clobbers the match data.
+ ;; Necessary in case something happens during
+ ;; read-event that clobbers the match data.
(set-match-data real-match-data)
(setq key (vector key))
(setq def (lookup-key map key))
(concat "Query replacing "
(if delimited-flag
(or (and (symbolp delimited-flag)
- (get delimited-flag 'isearch-message-prefix))
+ (get delimited-flag
+ 'isearch-message-prefix))
"word ") "")
(if regexp-flag "regexp " "")
(if backward "backward " "")
(message "No previous match")
(ding 'no-terminate)
(sit-for 1)))
+ ((or (eq def 'undo) (eq def 'undo-all))
+ (if (null stack)
+ (progn
+ (message "Nothing to undo")
+ (ding 'no-terminate)
+ (sit-for 1))
+ (let ((stack-idx 0)
+ (stack-len (length stack))
+ (num-replacements 0)
+ search-string
+ next-replacement)
+ (while (and (< stack-idx stack-len)
+ stack
+ (null replaced))
+ (let* ((elt (nth stack-idx stack)))
+ (setq
+ stack-idx (1+ stack-idx)
+ replaced (nth 1 elt)
+ ;; Bind swapped values
+ ;; (search-string <--> replacement)
+ search-string (nth (if replaced 4 3) elt)
+ next-replacement (nth (if replaced 3 4) elt)
+ search-string-replaced search-string
+ next-replacement-replaced next-replacement)
+
+ (when (and (= stack-idx stack-len)
+ (null replaced)
+ (zerop num-replacements))
+ (message "Nothing to undo")
+ (ding 'no-terminate)
+ (sit-for 1))
+
+ (when replaced
+ (setq stack (nthcdr stack-idx stack))
+ (goto-char (nth 0 elt))
+ (set-match-data (nth 2 elt))
+ (setq real-match-data
+ (save-excursion
+ (goto-char (match-beginning 0))
+ (looking-at search-string)
+ (match-data t (nth 2 elt)))
+ noedit
+ (replace-match-maybe-edit
+ next-replacement nocasify literal
+ noedit real-match-data backward)
+ replace-count (1- replace-count)
+ real-match-data
+ (save-excursion
+ (goto-char (match-beginning 0))
+ (looking-at next-replacement)
+ (match-data t (nth 2 elt))))
+ ;; Set replaced nil to keep in loop
+ (when (eq def 'undo-all)
+ (setq replaced nil
+ stack-len (- stack-len stack-idx)
+ stack-idx 0
+ num-replacements
+ (1+ num-replacements))))))
+ (when (and (eq def 'undo-all)
+ (null (zerop num-replacements)))
+ (message "Undid %d %s" num-replacements
+ (if (= num-replacements 1)
+ "replacement"
+ "replacements"))
+ (ding 'no-terminate)
+ (sit-for 1)))
+ (setq replaced nil last-was-undo t)))
((eq def 'act)
(or replaced
(setq noedit
(match-beginning 0)
(match-end 0)
(current-buffer))
- (match-data t)))
- stack))))))
-
+ (match-data t))
+ search-string-replaced
+ next-replacement-replaced)
+ stack)
+ (setq next-replacement-replaced nil
+ search-string-replaced nil))))))
(replace-dehighlight))
(or unread-command-events
(message "Replaced %d occurrence%s%s"