;;; replace.el --- replace commands for Emacs.
-;; Copyright (C) 1985, 1986, 1987, 1992 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1986, 1987, 1992, 1994, 1996 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Commentary:
;;; Code:
-(defconst case-replace t "\
-*Non-nil means query-replace should preserve case in replacements.")
+(defcustom case-replace t
+ "*Non-nil means query-replace should preserve case in replacements."
+ :type 'boolean
+ :group 'matching)
(defvar query-replace-history nil)
-(defun query-replace-read-args (string)
+(defvar query-replace-interactive nil
+ "Non-nil means `query-replace' uses the last search string.
+That becomes the \"string to replace\".")
+
+(defun query-replace-read-args (string regexp-flag)
(let (from to)
- (setq from (read-from-minibuffer (format "%s: " string)
- nil nil nil
- 'query-replace-history))
+ (if query-replace-interactive
+ (setq from (car (if regexp-flag regexp-search-ring search-ring)))
+ (setq from (read-from-minibuffer (format "%s: " string)
+ nil nil nil
+ 'query-replace-history nil t)))
(setq to (read-from-minibuffer (format "%s %s with: " string from)
nil nil nil
- 'query-replace-history))
+ 'query-replace-history nil t))
(list from to current-prefix-arg)))
(defun query-replace (from-string to-string &optional arg)
As each match is found, the user must type a character saying
what to do with it. For directions, type \\[help-command] at that time.
-Preserves case in each replacement if case-replace and case-fold-search
+If `query-replace-interactive' is non-nil, the last incremental search
+string is used as FROM-STRING--you don't have to specify it with the
+minibuffer.
+
+Preserves case in each replacement if `case-replace' and `case-fold-search'
are non-nil and FROM-STRING has no uppercase letters.
-Third arg DELIMITED (prefix arg if interactive) non-nil means replace
+\(Preserving case means that if the string matched is all caps, or capitalized,
+then its replacement is upcased or capitalized.)
+
+Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
only matches surrounded by word boundaries.
To customize possible responses, change the \"bindings\" in `query-replace-map'."
- (interactive (query-replace-read-args "Query replace"))
- (perform-replace from-string to-string t nil arg)
- (or unread-command-events (message "Done")))
+ (interactive (query-replace-read-args "Query replace" nil))
+ (perform-replace from-string to-string t nil arg))
(define-key esc-map "%" 'query-replace)
(defun query-replace-regexp (regexp to-string &optional arg)
As each match is found, the user must type a character saying
what to do with it. For directions, type \\[help-command] at that time.
-Preserves case in each replacement if case-replace and case-fold-search
+If `query-replace-interactive' is non-nil, the last incremental search
+regexp is used as REGEXP--you don't have to specify it with the
+minibuffer.
+
+Preserves case in each replacement if `case-replace' and `case-fold-search'
are non-nil and REGEXP has no uppercase letters.
-Third arg DELIMITED (prefix arg if interactive) non-nil means replace
+Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
only matches surrounded by word boundaries.
-In TO-STRING, \\& means insert what matched REGEXP,
-and \\=\\<n> means insert what matched <n>th \\(...\\) in REGEXP."
- (interactive (query-replace-read-args "Query replace regexp"))
- (perform-replace regexp to-string t t arg)
- (or unread-command-events (message "Done")))
+In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP,
+and `\\=\\N' (where N is a digit) stands for
+ whatever what matched the Nth `\\(...\\)' in REGEXP."
+ (interactive (query-replace-read-args "Query replace regexp" t))
+ (perform-replace regexp to-string t t arg))
(defun map-query-replace-regexp (regexp to-strings &optional arg)
"Replace some matches for REGEXP with various strings, in rotation.
Non-interactively, TO-STRINGS may be a list of replacement strings.
+If `query-replace-interactive' is non-nil, the last incremental search
+regexp is used as REGEXP--you don't have to specify it with the minibuffer.
+
A prefix argument N says to use each replacement string N times
before rotating to the next."
(interactive
(let (from to)
- (setq from (read-from-minibuffer "Map query replace (regexp): "
- nil nil nil
- 'query-replace-history))
+ (setq from (if query-replace-interactive
+ (car regexp-search-ring)
+ (read-from-minibuffer "Map query replace (regexp): "
+ nil nil nil
+ 'query-replace-history nil t)))
(setq to (read-from-minibuffer
(format "Query replace %s with (space-separated strings): "
from)
nil nil nil
- 'query-replace-history))
+ 'query-replace-history nil t))
(list from to current-prefix-arg)))
(let (replacements)
(if (listp to-strings)
(1+ (string-match " " to-strings))))
(setq replacements (append replacements (list to-strings))
to-strings ""))))
- (perform-replace regexp replacements t t nil arg))
- (or unread-command-events (message "Done")))
+ (perform-replace regexp replacements t t nil arg)))
(defun replace-string (from-string to-string &optional delimited)
"Replace occurrences of FROM-STRING with TO-STRING.
Preserve case in each match if `case-replace' and `case-fold-search'
are non-nil and FROM-STRING has no uppercase letters.
-Third arg DELIMITED (prefix arg if interactive) non-nil means replace
+\(Preserving case means that if the string matched is all caps, or capitalized,
+then its replacement is upcased or capitalized.)
+
+Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
only matches surrounded by word boundaries.
+If `query-replace-interactive' is non-nil, the last incremental search
+string is used as FROM-STRING--you don't have to specify it with the
+minibuffer.
+
This function is usually the wrong thing to use in a Lisp program.
What you probably want is a loop like this:
- (while (search-forward OLD-STRING nil t)
- (replace-match REPLACEMENT nil t))
-which will run faster and will not set the mark or print anything."
- (interactive (query-replace-read-args "Replace string"))
- (perform-replace from-string to-string nil nil delimited)
- (or unread-command-events (message "Done")))
+ (while (search-forward FROM-STRING nil t)
+ (replace-match TO-STRING nil t))
+which will run faster and will not set the mark or print anything.
+\(You may need a more complex loop if FROM-STRING can match the null string
+and TO-STRING is also null.)"
+ (interactive (query-replace-read-args "Replace string" nil))
+ (perform-replace from-string to-string nil nil delimited))
(defun replace-regexp (regexp to-string &optional delimited)
"Replace things after point matching REGEXP with TO-STRING.
-Preserve case in each match if case-replace and case-fold-search
+Preserve case in each match if `case-replace' and `case-fold-search'
are non-nil and REGEXP has no uppercase letters.
-Third arg DELIMITED (prefix arg if interactive) non-nil means replace
+Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
only matches surrounded by word boundaries.
-In TO-STRING, \\& means insert what matched REGEXP,
-and \\=\\<n> means insert what matched <n>th \\(...\\) in REGEXP.
+In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP,
+and `\\=\\N' (where N is a digit) stands for
+ whatever what matched the Nth `\\(...\\)' in REGEXP.
+
+If `query-replace-interactive' is non-nil, the last incremental search
+regexp is used as REGEXP--you don't have to specify it with the minibuffer.
This function is usually the wrong thing to use in a Lisp program.
What you probably want is a loop like this:
(while (re-search-forward REGEXP nil t)
- (replace-match REPLACEMENT nil nil))
+ (replace-match TO-STRING nil nil))
which will run faster and will not set the mark or print anything."
- (interactive (query-replace-read-args "Replace regexp"))
- (perform-replace regexp to-string nil t delimited)
- (or unread-command-events (message "Done")))
+ (interactive (query-replace-read-args "Replace regexp" t))
+ (perform-replace regexp to-string nil t delimited))
\f
(defvar regexp-history nil
"History list for some commands that read regular expressions.")
Applies to all lines after point."
(interactive (list (read-from-minibuffer
"Keep lines (containing match for regexp): "
- nil nil nil 'regexp-history)))
+ nil nil nil 'regexp-history nil t)))
(save-excursion
(or (bolp) (forward-line 1))
(let ((start (point)))
Applies to lines after point."
(interactive (list (read-from-minibuffer
"Flush lines (containing match for regexp): "
- nil nil nil 'regexp-history)))
+ nil nil nil 'regexp-history nil t)))
(save-excursion
(while (and (not (eobp))
(re-search-forward regexp nil t))
(defalias 'count-matches 'how-many)
(defun how-many (regexp)
"Print number of matches for REGEXP following point."
- (interactive (list (read-from-minibuffer
- "How many matches for (regexp): "
- nil nil nil 'regexp-history)))
+ (interactive (list(read-from-minibuffer
+ "How many matches for (regexp): "
+ nil nil nil 'regexp-history nil t)))
(let ((count 0) opoint)
(save-excursion
(while (and (not (eobp))
(if occur-mode-map
()
(setq occur-mode-map (make-sparse-keymap))
- (define-key occur-mode-map "\C-c\C-c" 'occur-mode-goto-occurrence))
+ (define-key occur-mode-map [mouse-2] 'occur-mode-mouse-goto)
+ (define-key occur-mode-map "\C-c\C-c" 'occur-mode-goto-occurrence)
+ (define-key occur-mode-map "\C-m" 'occur-mode-goto-occurrence)
+ (define-key occur-mode-map "\M-n" 'occur-next)
+ (define-key occur-mode-map "\M-p" 'occur-prev)
+ (define-key occur-mode-map "g" 'revert-buffer))
+
+
+(defvar occur-buffer nil
+ "Name of buffer for last occur.")
+
+
+(defvar occur-nlines nil
+ "Number of lines of context to show around matching line.")
-(defvar occur-buffer nil)
-(defvar occur-nlines nil)
-(defvar occur-pos-list nil)
+(defvar occur-command-arguments nil
+ "Arguments that were given to `occur' when it made this buffer.")
+
+(put 'occur-mode 'mode-class 'special)
(defun occur-mode ()
"Major mode for output from \\[occur].
-Move point to one of the occurrences in this buffer,
-then use \\[occur-mode-goto-occurrence] to go to the same occurrence
-in the buffer that the occurrences were found in.
+\\<occur-mode-map>Move point to one of the items in this buffer, then use
+\\[occur-mode-goto-occurrence] to go to the occurrence that the item refers to.
+Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it.
+
\\{occur-mode-map}"
(kill-all-local-variables)
(use-local-map occur-mode-map)
(setq major-mode 'occur-mode)
(setq mode-name "Occur")
+ (make-local-variable 'revert-buffer-function)
+ (setq revert-buffer-function 'occur-revert-function)
(make-local-variable 'occur-buffer)
(make-local-variable 'occur-nlines)
- (make-local-variable 'occur-pos-list)
+ (make-local-variable 'occur-command-arguments)
(run-hooks 'occur-mode-hook))
-(defun occur-mode-goto-occurrence ()
- "Go to the line this occurrence was found in, in the buffer it was found in."
- (interactive)
+;; Handle revert-buffer for *Occur* buffers.
+(defun occur-revert-function (ignore1 ignore2)
+ (let ((args occur-command-arguments ))
+ (save-excursion
+ (set-buffer occur-buffer)
+ (apply 'occur args))))
+
+(defun occur-mode-mouse-goto (event)
+ "In Occur mode, go to the occurrence whose line you click on."
+ (interactive "e")
+ (let (buffer pos)
+ (save-excursion
+ (set-buffer (window-buffer (posn-window (event-end event))))
+ (save-excursion
+ (goto-char (posn-point (event-end event)))
+ (setq pos (occur-mode-find-occurrence))
+ (setq buffer occur-buffer)))
+ (pop-to-buffer buffer)
+ (goto-char (marker-position pos))))
+
+(defun occur-mode-find-occurrence ()
(if (or (null occur-buffer)
(null (buffer-name occur-buffer)))
(progn
- (setq occur-buffer nil
- occur-pos-list nil)
+ (setq occur-buffer nil)
(error "Buffer in which occurrences were found is deleted")))
- (let* ((occur-number (save-excursion
- (beginning-of-line)
- (/ (1- (count-lines (point-min)
- (save-excursion
- (beginning-of-line)
- (point))))
- (cond ((< occur-nlines 0)
- (- 2 occur-nlines))
- ((> occur-nlines 0)
- (+ 2 (* 2 occur-nlines)))
- (t 1)))))
- (pos (nth occur-number occur-pos-list)))
- (or pos
- (error "No occurrence on this line"))
+ (let ((pos (get-text-property (point) 'occur)))
+ (if (null pos)
+ (error "No occurrence on this line")
+ pos)))
+
+(defun occur-mode-goto-occurrence ()
+ "Go to the occurrence the current line describes."
+ (interactive)
+ (let ((pos (occur-mode-find-occurrence)))
(pop-to-buffer occur-buffer)
(goto-char (marker-position pos))))
+
+(defun occur-next (&optional n)
+ "Move to the Nth (default 1) next match in the *Occur* buffer."
+ (interactive "p")
+ (if (not n) (setq n 1))
+ (let ((r))
+ (while (> n 0)
+ (if (get-text-property (point) 'occur-point)
+ (forward-char 1))
+ (setq r (next-single-property-change (point) 'occur-point))
+ (if r
+ (goto-char r)
+ (error "no more matches"))
+ (setq n (1- n)))))
+
+
+
+(defun occur-prev (&optional n)
+ "Move to the Nth (default 1) previous match in the *Occur* buffer."
+ (interactive "p")
+ (if (not n) (setq n 1))
+ (let ((r))
+ (while (> n 0)
+
+ (setq r (get-text-property (point) 'occur-point))
+ (if r (forward-char -1))
+
+ (setq r (previous-single-property-change (point) 'occur-point))
+ (if r
+ (goto-char (- r 1))
+ (error "no earlier matches"))
+
+ (setq n (1- n)))))
\f
-(defvar list-matching-lines-default-context-lines 0
+(defcustom list-matching-lines-default-context-lines 0
"*Default number of context lines to include around a `list-matching-lines'
match. A negative number means to include that many lines before the match.
-A positive number means to include that many lines both before and after.")
+A positive number means to include that many lines both before and after."
+ :type 'integer
+ :group 'matching)
(defalias 'list-matching-lines 'occur)
+(defvar list-matching-lines-face 'bold
+ "*Face used by M-x list-matching-lines to show the text that matches.
+If the value is nil, don't highlight the matching portions specially.")
+
(defun occur (regexp &optional nlines)
"Show all lines in the current buffer containing a match for REGEXP.
The lines are shown in a buffer named `*Occur*'.
It serves as a menu to find any of the occurrences in this buffer.
-\\[describe-mode] in that buffer will explain how."
- (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 (> (length input) 0) input
- (setcar regexp-history default)))
- current-prefix-arg))
- (setq nlines (if nlines (prefix-numeric-value nlines)
- list-matching-lines-default-context-lines))
- (let ((first t)
+\\<occur-mode-map>\\[describe-mode] in that buffer will explain how.
+
+If REGEXP contains upper case characters (excluding those preceded by `\\'),
+the matching is case-sensitive."
+ (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 nil t)))
+ (if (string-equal input "")
+ default
+ (set-text-properties 0 (length input) nil input)
+ input))
+ current-prefix-arg))
+ (let ((nlines (if nlines
+ (prefix-numeric-value nlines)
+ list-matching-lines-default-context-lines))
+ (first t)
+ ;;flag to prevent printing separator for first match
+ (occur-num-matches 0)
(buffer (current-buffer))
+ (dir default-directory)
(linenum 1)
- (prevpos (point-min))
- (final-context-start (make-marker)))
+ (prevpos
+ ;;position of most recent match
+ (point-min))
+ (case-fold-search (and case-fold-search
+ (isearch-no-upper-case-p regexp t)))
+ (final-context-start
+ ;; Marker to the start of context immediately following
+ ;; the matched text in *Occur*.
+ (make-marker)))
;;; (save-excursion
;;; (beginning-of-line)
;;; (setq linenum (1+ (count-lines (point-min) (point))))
;;; (setq prevpos (point)))
- (with-output-to-temp-buffer "*Occur*"
- (save-excursion
- (set-buffer standard-output)
- (insert "Lines matching ")
- (prin1 regexp)
- (insert " in buffer " (buffer-name buffer) ?. ?\n)
- (occur-mode)
- (setq occur-buffer buffer)
- (setq occur-nlines nlines)
- (setq occur-pos-list ()))
- (if (eq buffer standard-output)
- (goto-char (point-max)))
- (save-excursion
- (beginning-of-buffer)
- ;; Find next match, but give up if prev match was at end of buffer.
- (while (and (not (= prevpos (point-max)))
- (re-search-forward regexp nil t))
- (goto-char (match-beginning 0))
- (beginning-of-line)
- (save-match-data
- (setq linenum (+ linenum (count-lines prevpos (point)))))
- (setq prevpos (point))
- (goto-char (match-end 0))
- (let* ((start (save-excursion
- (goto-char (match-beginning 0))
- (forward-line (if (< nlines 0) nlines (- nlines)))
- (point)))
- (end (save-excursion
+ (save-excursion
+ (goto-char (point-min))
+ ;; Check first whether there are any matches at all.
+ (if (not (re-search-forward regexp nil t))
+ (message "No matches for `%s'" regexp)
+ ;; Back up, so the search loop below will find the first match.
+ (goto-char (match-beginning 0))
+ (with-output-to-temp-buffer "*Occur*"
+ (save-excursion
+ (set-buffer standard-output)
+ (setq default-directory dir)
+ ;; We will insert the number of lines, and "lines", later.
+ (insert " matching ")
+ (let ((print-escape-newlines t))
+ (prin1 regexp))
+ (insert " in buffer " (buffer-name buffer) ?. ?\n)
+ (occur-mode)
+ (setq occur-buffer buffer)
+ (setq occur-nlines nlines)
+ (setq occur-command-arguments
+ (list regexp nlines)))
+ (if (eq buffer standard-output)
+ (goto-char (point-max)))
+ (save-excursion
+ ;; Find next match, but give up if prev match was at end of buffer.
+ (while (and (not (= prevpos (point-max)))
+ (re-search-forward regexp nil t))
+ (goto-char (match-beginning 0))
+ (beginning-of-line)
+ (save-match-data
+ (setq linenum (+ linenum (count-lines prevpos (point)))))
+ (setq prevpos (point))
+ (goto-char (match-end 0))
+ (let* ((start
+ ;;start point of text in source buffer to be put
+ ;;into *Occur*
+ (save-excursion
+ (goto-char (match-beginning 0))
+ (forward-line (if (< nlines 0)
+ nlines
+ (- nlines)))
+ (point)))
+ (end
+ ;; end point of text in source buffer to be put
+ ;; into *Occur*
+ (save-excursion
(goto-char (match-end 0))
(if (> nlines 0)
(forward-line (1+ nlines))
- (forward-line 1))
+ (forward-line 1))
(point)))
- (tag (format "%3d" linenum))
- (empty (make-string (length tag) ?\ ))
- tem)
- (save-excursion
- (setq tem (make-marker))
- (set-marker tem (point))
- (set-buffer standard-output)
- (setq occur-pos-list (cons tem occur-pos-list))
- (or first (zerop nlines)
- (insert "--------\n"))
- (setq first nil)
- (insert-buffer-substring buffer start end)
- (backward-char (- end start))
- (setq tem nlines)
- (while (> tem 0)
- (insert empty ?:)
- (forward-line 1)
- (setq tem (1- tem)))
- (let ((this-linenum linenum))
- (set-marker final-context-start
- (+ (point) (- (match-end 0) (match-beginning 0))))
- (while (< (point) final-context-start)
- (if (null tag)
- (setq tag (format "%3d" this-linenum)))
- (insert tag ?:)
- (setq tag nil)
- (forward-line 1)
- (setq this-linenum (1+ this-linenum))))
- (while (< tem nlines)
- (insert empty ?:)
- (forward-line 1)
- (setq tem (1+ tem))))
- (forward-line 1)))
- (set-buffer standard-output)
- ;; Put positions in increasing order to go with buffer.
- (setq occur-pos-list (nreverse occur-pos-list))
- (if (interactive-p)
- (message "%d matching lines." (length occur-pos-list)))))))
+ (match-beg
+ ;; Amount of context before matching text
+ (- (match-beginning 0) start))
+ (match-len
+ ;; Length of matching text
+ (- (match-end 0) (match-beginning 0)))
+ (tag (format "%5d" linenum))
+ (empty (make-string (length tag) ?\ ))
+ tem
+ ;; Number of lines of context to show for current match.
+ occur-marker
+ ;; Marker pointing to end of match in source buffer.
+ (text-beg
+ ;; Marker pointing to start of text for one
+ ;; match in *Occur*.
+ (make-marker))
+ (text-end
+ ;; Marker pointing to end of text for one match
+ ;; in *Occur*.
+ (make-marker))
+ )
+ (save-excursion
+ (setq occur-marker (make-marker))
+ (set-marker occur-marker (point))
+ (set-buffer standard-output)
+ (setq occur-num-matches (1+ occur-num-matches))
+ (or first (zerop nlines)
+ (insert "--------\n"))
+ (setq first nil)
+
+ ;; Insert matching text including context lines from
+ ;; source buffer into *Occur*
+ (set-marker text-beg (point))
+ (insert-buffer-substring buffer start end)
+ (set-marker text-end (point))
+
+ ;; Highlight text that was matched.
+ (if list-matching-lines-face
+ (put-text-property
+ (+ (marker-position text-beg) match-beg)
+ (+ (marker-position text-beg) match-beg match-len)
+ 'face list-matching-lines-face))
+
+ ;; `occur-point' property is used by occur-next and
+ ;; occur-prev to move between matching lines.
+ (put-text-property
+ (+ (marker-position text-beg) match-beg match-len)
+ (+ (marker-position text-beg) match-beg match-len 1)
+ 'occur-point t)
+ (set-marker final-context-start
+ (- (point) (- end (match-end 0))))
+
+ ;; Now go back to the start of the matching text
+ ;; adding the space and colon to the start of each line.
+ (goto-char (- (point) (- end start)))
+ ;; Insert space and colon for lines of context before match.
+ (setq tem (if (< linenum nlines)
+ (- nlines linenum)
+ nlines))
+ (while (> tem 0)
+ (insert empty ?:)
+ (forward-line 1)
+ (setq tem (1- tem)))
+
+ ;; Insert line number and colon for the lines of
+ ;; matching text.
+ (let ((this-linenum linenum))
+ (while (< (point) final-context-start)
+ (if (null tag)
+ (setq tag (format "%5d" this-linenum)))
+ (insert tag ?:)
+ (forward-line 1)
+ (setq tag nil)
+ (setq this-linenum (1+ this-linenum)))
+ (while (<= (point) final-context-start)
+ (insert empty ?:)
+ (forward-line 1)
+ (setq this-linenum (1+ this-linenum))))
+
+ ;; Insert space and colon for lines of context after match.
+ (while (and (< (point) (point-max)) (< tem nlines))
+ (insert empty ?:)
+ (forward-line 1)
+ (setq tem (1+ tem)))
+
+ ;; Add text properties. The `occur' prop is used to
+ ;; store the marker of the matching text in the
+ ;; source buffer.
+ (put-text-property (marker-position text-beg)
+ (- (marker-position text-end) 1)
+ 'mouse-face 'highlight)
+ (put-text-property (marker-position text-beg)
+ (marker-position text-end)
+ 'occur occur-marker)
+ (goto-char (point-max)))
+ (forward-line 1)))
+ (set-buffer standard-output)
+ ;; Go back to top of *Occur* and finish off by printing the
+ ;; number of matching lines.
+ (goto-char (point-min))
+ (let ((message-string
+ (if (= occur-num-matches 1)
+ "1 line"
+ (format "%d lines" occur-num-matches))))
+ (insert message-string)
+ (if (interactive-p)
+ (message "%s matched" message-string)))))))))
\f
;; It would be nice to use \\[...], but there is no reasonable way
;; to make that display both SPC and Y.
The \"bindings\" in this map are not commands; they are answers.
The valid answers include `act', `skip', `act-and-show',
`exit', `act-and-exit', `edit', `delete-and-edit', `recenter',
-`automatic', `backup', and `help'.")
+`automatic', `backup', `exit-prefix', and `help'.")
(define-key query-replace-map " " 'act)
(define-key query-replace-map "\d" 'skip)
(define-key query-replace-map [backspace] 'skip)
(define-key query-replace-map "y" 'act)
(define-key query-replace-map "n" 'skip)
+(define-key query-replace-map "Y" 'act)
+(define-key query-replace-map "N" 'skip)
(define-key query-replace-map "," 'act-and-show)
(define-key query-replace-map "q" 'exit)
(define-key query-replace-map "\r" 'exit)
(define-key query-replace-map "!" 'automatic)
(define-key query-replace-map "^" 'backup)
(define-key query-replace-map "\C-h" 'help)
+(define-key query-replace-map [f1] 'help)
+(define-key query-replace-map [help] 'help)
(define-key query-replace-map "?" 'help)
(define-key query-replace-map "\C-g" 'quit)
(define-key query-replace-map "\C-]" 'quit)
+(define-key query-replace-map "\e" 'exit-prefix)
+(define-key query-replace-map [escape] 'exit-prefix)
(defun perform-replace (from-string replacements
query-flag regexp-flag delimited-flag
just as `query-replace' does. Instead, write a simple loop like this:
(while (re-search-forward \"foo[ \t]+bar\" nil t)
(replace-match \"foobar\" nil nil))
-which will run faster and do exactly what you probably want."
+which will run faster and probably do exactly what you want."
(or map (setq map query-replace-map))
+ (and query-flag minibuffer-auto-raise
+ (raise-frame (window-frame (minibuffer-window))))
(let ((nocasify (not (and case-fold-search case-replace
(string-equal from-string
(downcase from-string)))))
(stack nil)
(next-rotate-count 0)
(replace-count 0)
- (lastrepl nil) ;Position after last match considered.
- (match-again t))
+ (nonempty-match nil)
+
+ ;; Data for the next match. If a cons, it has the same format as
+ ;; (match-data); otherwise it is t if a match is possible at point.
+ (match-again t)
+
+ (message
+ (if query-flag
+ (substitute-command-keys
+ "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) "))))
(if (stringp replacements)
(setq next-replacement replacements)
(or repeat-count (setq repeat-count 1)))
"\\b")))
(push-mark)
(undo-boundary)
- ;; Loop finding occurrences that perhaps should be replaced.
- (while (and keep-going
- (not (eobp))
- (funcall search-function search-string nil t)
- ;; If the search string matches immediately after
- ;; the previous match, but it did not match there
- ;; before the replacement was done, ignore the match.
- (if (or (eq lastrepl (point))
- (and regexp-flag
- (eq lastrepl (match-beginning 0))
- (not match-again)))
- (if (eobp)
- nil
- ;; Don't replace the null string
- ;; right after end of previous replacement.
- (forward-char 1)
- (funcall search-function search-string nil t))
- t))
-
- ;; Save the data associated with the real match.
- (setq real-match-data (match-data))
-
- ;; Before we make the replacement, decide whether the search string
- ;; can match again just after this match.
- (if regexp-flag
- (setq match-again (looking-at search-string)))
- ;; If time for a change, advance to next replacement string.
- (if (and (listp replacements)
- (= next-rotate-count replace-count))
- (progn
- (setq next-rotate-count
- (+ next-rotate-count repeat-count))
- (setq next-replacement (nth replacement-index replacements))
- (setq replacement-index (% (1+ replacement-index) (length replacements)))))
- (if (not query-flag)
- (progn
- (store-match-data real-match-data)
- (replace-match next-replacement nocasify literal)
- (setq replace-count (1+ replace-count)))
- (undo-boundary)
- (let (done replaced key def)
- ;; Loop reading commands until one of them sets done,
- ;; which means it has finished handling this occurrence.
- (while (not done)
- (message (substitute-command-keys
- "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) ")
- from-string next-replacement)
- (setq key (read-event))
- (setq key (vector key))
- (setq def (lookup-key map key))
- ;; Restore the match data while we process the command.
- (store-match-data real-match-data)
- (cond ((eq def 'help)
- (with-output-to-temp-buffer "*Help*"
- (princ
- (concat "Query replacing "
- (if regexp-flag "regexp " "")
- from-string " with "
- next-replacement ".\n\n"
- (substitute-command-keys
- query-replace-help)))))
- ((eq def 'exit)
- (setq keep-going nil)
- (setq done t))
- ((eq def 'backup)
- (let ((elt (car stack)))
- (goto-char (car elt))
- (setq replaced (eq t (cdr elt)))
- (or replaced
- (store-match-data (cdr elt)))
- (setq stack (cdr stack))))
- ((eq def 'act)
- (or replaced
- (replace-match next-replacement nocasify literal))
- (setq done t replaced t))
- ((eq def 'act-and-exit)
- (or replaced
- (replace-match next-replacement nocasify literal))
- (setq keep-going nil)
- (setq done t replaced t))
- ((eq def 'act-and-show)
- (if (not replaced)
- (progn
- (replace-match next-replacement nocasify literal)
- (setq replaced t))))
- ((eq def 'automatic)
- (or replaced
- (replace-match next-replacement nocasify literal))
- (setq done t query-flag nil replaced t))
- ((eq def 'skip)
- (setq done t))
- ((eq def 'recenter)
- (recenter nil))
- ((eq def 'edit)
- (store-match-data
- (prog1 (match-data)
- (save-excursion (recursive-edit))))
- ;; Before we make the replacement,
- ;; decide whether the search string
- ;; can match again just after this match.
- (if regexp-flag
- (setq match-again (looking-at search-string))))
- ((eq def 'delete-and-edit)
- (delete-region (match-beginning 0) (match-end 0))
- (store-match-data
- (prog1 (match-data)
- (save-excursion (recursive-edit))))
- (setq replaced t))
- (t
- (setq keep-going nil)
- (setq unread-command-events
- (append (listify-key-sequence key)
- unread-command-events))
- (setq done t))))
- ;; Record previous position for ^ when we move on.
- ;; Change markers to numbers in the match data
- ;; since lots of markers slow down editing.
- (setq stack
- (cons (cons (point)
- (or replaced
- (mapcar
- (function (lambda (elt)
- (and elt
- (marker-position elt))))
- (match-data))))
- stack))
- (if replaced (setq replace-count (1+ replace-count)))))
- (setq lastrepl (point)))
- (and keep-going stack)))
+ (unwind-protect
+ ;; Loop finding occurrences that perhaps should be replaced.
+ (while (and keep-going
+ (not (eobp))
+ ;; Use the next match if it is already known;
+ ;; otherwise, search for a match after moving forward
+ ;; one char if progress is required.
+ (setq real-match-data
+ (if (consp match-again)
+ (progn (goto-char (nth 1 match-again))
+ match-again)
+ (and (or match-again
+ (progn
+ (forward-char 1)
+ (not (eobp))))
+ (funcall search-function search-string nil t)
+ ;; For speed, use only integers and
+ ;; reuse the list used last time.
+ (match-data t real-match-data)))))
+
+ ;; Record whether the match is nonempty, to avoid an infinite loop
+ ;; repeatedly matching the same empty string.
+ (setq nonempty-match
+ (/= (nth 0 real-match-data) (nth 1 real-match-data)))
+
+ ;; If the match is empty, record that the next one can't be adjacent.
+ ;; Otherwise, if matching a regular expression, do the next
+ ;; match now, since the replacement for this match may
+ ;; affect whether the next match is adjacent to this one.
+ (setq match-again
+ (and nonempty-match
+ (or (not regexp-flag)
+ (and (looking-at search-string)
+ (match-data)))))
+
+ ;; If time for a change, advance to next replacement string.
+ (if (and (listp replacements)
+ (= next-rotate-count replace-count))
+ (progn
+ (setq next-rotate-count
+ (+ next-rotate-count repeat-count))
+ (setq next-replacement (nth replacement-index replacements))
+ (setq replacement-index (% (1+ replacement-index) (length replacements)))))
+ (if (not query-flag)
+ (progn
+ (store-match-data real-match-data)
+ (replace-match next-replacement nocasify literal)
+ (setq replace-count (1+ replace-count)))
+ (undo-boundary)
+ (let (done replaced key def)
+ ;; Loop reading commands until one of them sets done,
+ ;; which means it has finished handling this occurrence.
+ (while (not done)
+ (store-match-data real-match-data)
+ (replace-highlight (match-beginning 0) (match-end 0))
+ ;; Bind message-log-max so we don't fill up the message log
+ ;; with a bunch of identical messages.
+ (let ((message-log-max nil))
+ (message message from-string next-replacement))
+ (setq key (read-event))
+ ;; Necessary in case something happens during read-event
+ ;; that clobbers the match data.
+ (store-match-data real-match-data)
+ (setq key (vector key))
+ (setq def (lookup-key map key))
+ ;; Restore the match data while we process the command.
+ (cond ((eq def 'help)
+ (with-output-to-temp-buffer "*Help*"
+ (princ
+ (concat "Query replacing "
+ (if regexp-flag "regexp " "")
+ from-string " with "
+ next-replacement ".\n\n"
+ (substitute-command-keys
+ query-replace-help)))
+ (save-excursion
+ (set-buffer standard-output)
+ (help-mode))))
+ ((eq def 'exit)
+ (setq keep-going nil)
+ (setq done t))
+ ((eq def 'backup)
+ (if stack
+ (let ((elt (car stack)))
+ (goto-char (car elt))
+ (setq replaced (eq t (cdr elt)))
+ (or replaced
+ (store-match-data (cdr elt)))
+ (setq stack (cdr stack)))
+ (message "No previous match")
+ (ding 'no-terminate)
+ (sit-for 1)))
+ ((eq def 'act)
+ (or replaced
+ (progn
+ (replace-match next-replacement nocasify literal)
+ (setq replace-count (1+ replace-count))))
+ (setq done t replaced t))
+ ((eq def 'act-and-exit)
+ (or replaced
+ (progn
+ (replace-match next-replacement nocasify literal)
+ (setq replace-count (1+ replace-count))))
+ (setq keep-going nil)
+ (setq done t replaced t))
+ ((eq def 'act-and-show)
+ (if (not replaced)
+ (progn
+ (replace-match next-replacement nocasify literal)
+ (setq replace-count (1+ replace-count))
+ (setq replaced t))))
+ ((eq def 'automatic)
+ (or replaced
+ (progn
+ (replace-match next-replacement nocasify literal)
+ (setq replace-count (1+ replace-count))))
+ (setq done t query-flag nil replaced t))
+ ((eq def 'skip)
+ (setq done t))
+ ((eq def 'recenter)
+ (recenter nil))
+ ((eq def 'edit)
+ (store-match-data
+ (prog1 (match-data)
+ (save-excursion (recursive-edit))))
+ ;; Before we make the replacement,
+ ;; decide whether the search string
+ ;; can match again just after this match.
+ (if (and regexp-flag nonempty-match)
+ (setq match-again (and (looking-at search-string)
+ (match-data)))))
+ ((eq def 'delete-and-edit)
+ (delete-region (match-beginning 0) (match-end 0))
+ (store-match-data
+ (prog1 (match-data)
+ (save-excursion (recursive-edit))))
+ (setq replaced t))
+ ;; Note: we do not need to treat `exit-prefix'
+ ;; specially here, since we reread
+ ;; any unrecognized character.
+ (t
+ (setq this-command 'mode-exited)
+ (setq keep-going nil)
+ (setq unread-command-events
+ (append (listify-key-sequence key)
+ unread-command-events))
+ (setq done t))))
+ ;; Record previous position for ^ when we move on.
+ ;; Change markers to numbers in the match data
+ ;; since lots of markers slow down editing.
+ (setq stack
+ (cons (cons (point)
+ (or replaced (match-data t)))
+ stack)))))
+ (replace-dehighlight))
+ (or unread-command-events
+ (message "Replaced %d occurrence%s"
+ replace-count
+ (if (= replace-count 1) "" "s")))
+ (and keep-going stack)))
+
+(defcustom query-replace-highlight t
+ "*Non-nil means to highlight words during query replacement."
+ :type 'boolean
+ :group 'matching)
+
+(defvar replace-overlay nil)
+
+(defun replace-dehighlight ()
+ (and replace-overlay
+ (progn
+ (delete-overlay replace-overlay)
+ (setq replace-overlay nil))))
+
+(defun replace-highlight (start end)
+ (and query-replace-highlight
+ (progn
+ (or replace-overlay
+ (progn
+ (setq replace-overlay (make-overlay start end))
+ (overlay-put replace-overlay 'face
+ (if (internal-find-face 'query-replace)
+ 'query-replace 'region))))
+ (move-overlay replace-overlay start end (current-buffer)))))
;;; replace.el ends here
HCoop / bpt / emacs.git / blobdiff