;;; replace.el --- replace commands for Emacs.
-;; Copyright (C) 1985, 1986, 1987, 1992, 1994, 1996 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 86, 87, 92, 94, 96, 1997 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
"Non-nil means `query-replace' uses the last search string.
That becomes the \"string to replace\".")
+(defcustom query-replace-from-history-variable 'query-replace-history
+ "History list to use for the FROM argument of query-replace commands.
+The value of this variable should be a symbol; that symbol
+is used as a variable to hold a history list for the strings
+or patterns to be replaced."
+ :group 'matching
+ :type 'symbol
+ :version "20.3")
+
+(defcustom query-replace-to-history-variable 'query-replace-history
+ "History list to use for the TO argument of query-replace commands.
+The value of this variable should be a symbol; that symbol
+is used as a variable to hold a history list for replacement
+strings or patterns."
+ :group 'matching
+ :type 'symbol
+ :version "20.3")
+
(defun query-replace-read-args (string regexp-flag)
(let (from to)
(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)))
+ query-replace-from-history-variable
+ nil t)))
(setq to (read-from-minibuffer (format "%s %s with: " string from)
nil nil nil
- 'query-replace-history))
+ query-replace-to-history-variable from 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.
+In Transient Mark mode, if the mark is active, operate on the contents
+of the region. Otherwise, operate from point to the end of the buffer.
+
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'
+Replacement transfers the case of the old text to the new text,
+if `case-replace' and `case-fold-search'
are non-nil and FROM-STRING has no uppercase letters.
\(Preserving case means that if the string matched is all caps, or capitalized,
then its replacement is upcased or capitalized.)
To customize possible responses, change the \"bindings\" in `query-replace-map'."
(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.
+In Transient Mark mode, if the mark is active, operate on the contents
+of the region. Otherwise, operate from point to the end of the buffer.
+
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.
whatever what matched the Nth `\\(...\\)' in REGEXP."
(interactive (query-replace-read-args "Query replace regexp" t))
(perform-replace regexp to-string t t arg))
+(define-key esc-map [?\C-%] 'query-replace-regexp)
+
+(defun query-replace-regexp-eval (regexp to-expr &optional arg)
+ "Replace some things after point matching REGEXP with the result of TO-EXPR.
+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.
+
+TO-EXPR is a Lisp expression evaluated to compute each replacement. It may
+reference `replace-count' to get the number of replacements already made.
+If the result of TO-EXPR is not a string, it is converted to one using
+`prin1-to-string' with the NOESCAPE argument (which see).
+
+For convenience, when entering TO-EXPR interactively, you can use `\\&' or
+`\\0'to stand for whatever matched the whole of REGEXP, and `\\=\\N' (where
+N is a digit) stands for whatever what matched the Nth `\\(...\\)' in REGEXP.
+Use `\\#&' or `\\#N' if you want a number instead of a string.
+
+In Transient Mark mode, if the mark is active, operate on the contents
+of the region. Otherwise, operate from point to the end of the buffer.
+
+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), if non-nil, means replace
+only matches surrounded by word boundaries."
+ (interactive
+ (let (from to)
+ (if query-replace-interactive
+ (setq from (car regexp-search-ring))
+ (setq from (read-from-minibuffer "Query replace regexp: "
+ nil nil nil
+ query-replace-from-history-variable
+ nil t)))
+ (setq to (list (read-from-minibuffer
+ (format "Query replace regexp %s with eval: " from)
+ nil nil t query-replace-to-history-variable from t)))
+ ;; We make TO a list because replace-match-string-symbols requires one,
+ ;; and the user might enter a single token.
+ (replace-match-string-symbols to)
+ (list from (car to) current-prefix-arg)))
+ (perform-replace regexp (cons 'replace-eval-replacement to-expr) t t arg))
(defun map-query-replace-regexp (regexp to-strings &optional arg)
"Replace some matches for REGEXP with various strings, in rotation.
that each successive replacement uses the next successive replacement string,
wrapping around from the last such string to the first.
+In Transient Mark mode, if the mark is active, operate on the contents
+of the region. Otherwise, operate from point to the end of the buffer.
+
Non-interactively, TO-STRINGS may be a list of replacement strings.
If `query-replace-interactive' is non-nil, the last incremental search
(car regexp-search-ring)
(read-from-minibuffer "Map query replace (regexp): "
nil nil nil
- 'query-replace-history)))
+ '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 from t))
(list from to current-prefix-arg)))
(let (replacements)
(if (listp to-strings)
\(Preserving case means that if the string matched is all caps, or capitalized,
then its replacement is upcased or capitalized.)
+In Transient Mark mode, if the mark is active, operate on the contents
+of the region. Otherwise, operate from point to the end of the buffer.
+
Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
only matches surrounded by word boundaries.
and `\\=\\N' (where N is a digit) stands for
whatever what matched the Nth `\\(...\\)' in REGEXP.
+In Transient Mark mode, if the mark is active, operate on the contents
+of the region. Otherwise, operate from point to the end of the buffer.
+
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.
(defun keep-lines (regexp)
"Delete all lines except those containing matches for REGEXP.
A match split across lines preserves all the lines it lies in.
-Applies to all lines after point."
+Applies to all lines after point.
+
+If REGEXP contains upper case characters (excluding those preceded by `\\'),
+the matching is case-sensitive."
(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)))
+ (let ((start (point))
+ (case-fold-search (and case-fold-search
+ (isearch-no-upper-case-p regexp t))))
(while (not (eobp))
;; Start is first char not preserved by previous match.
(if (not (re-search-forward regexp nil 'move))
(defun flush-lines (regexp)
"Delete lines containing matches for REGEXP.
If a match is split across lines, all the lines it lies in are deleted.
-Applies to lines after point."
+Applies to lines after point.
+
+If REGEXP contains upper case characters (excluding those preceded by `\\'),
+the matching is case-sensitive."
(interactive (list (read-from-minibuffer
"Flush lines (containing match for regexp): "
- nil nil nil 'regexp-history)))
- (save-excursion
- (while (and (not (eobp))
- (re-search-forward regexp nil t))
- (delete-region (save-excursion (goto-char (match-beginning 0))
- (beginning-of-line)
- (point))
- (progn (forward-line 1) (point))))))
+ nil nil nil 'regexp-history nil t)))
+ (let ((case-fold-search (and case-fold-search
+ (isearch-no-upper-case-p regexp t))))
+ (save-excursion
+ (while (and (not (eobp))
+ (re-search-forward regexp nil t))
+ (delete-region (save-excursion (goto-char (match-beginning 0))
+ (beginning-of-line)
+ (point))
+ (progn (forward-line 1) (point)))))))
(defalias 'count-matches 'how-many)
(defun how-many (regexp)
- "Print number of matches for REGEXP following point."
+ "Print number of matches for REGEXP following point.
+
+If REGEXP contains upper case characters (excluding those preceded by `\\'),
+the matching is case-sensitive."
(interactive (list (read-from-minibuffer
"How many matches for (regexp): "
- nil nil nil 'regexp-history)))
- (let ((count 0) opoint)
+ nil nil nil 'regexp-history nil t)))
+ (let ((count 0) opoint
+ (case-fold-search (and case-fold-search
+ (isearch-no-upper-case-p regexp t))))
(save-excursion
(while (and (not (eobp))
(progn (setq opoint (point))
(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)
-(defvar occur-nlines nil)
-(defvar occur-pos-list nil)
+
+(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-command-arguments nil
"Arguments that were given to `occur' when it made this buffer.")
(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))
(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* ((line-count
- (count-lines (point-min)
- (save-excursion
- (beginning-of-line)
- (point))))
- (occur-number (save-excursion
- (beginning-of-line)
- (/ (1- line-count)
- (cond ((< occur-nlines 0)
- (- 2 occur-nlines))
- ((> occur-nlines 0)
- (+ 2 (* 2 occur-nlines)))
- (t 1)))))
- (pos (nth occur-number occur-pos-list)))
- (if (< line-count 1)
- (error "No occurrence on this line"))
- (or pos
- (error "No occurrence on this line"))
- pos))
+ (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."
(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
(defcustom list-matching-lines-default-context-lines 0
"*Default number of context lines to include around a `list-matching-lines'
(format "List lines matching regexp (default `%s'): "
default)
"List lines matching regexp: ")
- nil nil nil 'regexp-history)))
- (if (string-equal input "")
- default
- (set-text-properties 0 (length input) nil input)
- input))
+ nil nil nil 'regexp-history default t)))
+ (and (equal input "") default
+ (setq input default))
+ 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))
+ (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 (make-marker)))
+ (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))))
(occur-mode)
(setq occur-buffer buffer)
(setq occur-nlines nlines)
- (setq occur-pos-list ())
(setq occur-command-arguments
(list regexp nlines)))
(if (eq buffer standard-output)
(setq linenum (+ linenum (count-lines prevpos (point)))))
(setq prevpos (point))
(goto-char (match-end 0))
- (let* ((start (save-excursion
+ (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)))
+ (forward-line (if (< nlines 0)
+ nlines
+ (- nlines)))
(point)))
- (end (save-excursion
- (goto-char (match-end 0))
- (if (> nlines 0)
- (forward-line (1+ nlines))
- (forward-line 1))
- (point)))
- ;; Record where the actual match
- (match-offset
- (save-excursion
- (goto-char (match-beginning 0))
- (beginning-of-line)
- ;; +6 to skip over line number
- (+ 6 (- (match-beginning 0) (point)))))
- (match-len (- (match-end 0) (match-beginning 0)))
+ (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))
+ (point)))
+ (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)
+ tem
+ insertion-start
+ ;; 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 tem (make-marker))
- (set-marker tem (point))
+ (setq occur-marker (make-marker))
+ (set-marker occur-marker (point))
(set-buffer standard-output)
- (setq occur-pos-list (cons tem occur-pos-list))
+ (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))
+ (setq insertion-start (point))
(insert-buffer-substring buffer start end)
+ (or (and (/= (+ start match-beg) end)
+ (with-current-buffer buffer
+ (eq (char-before end) ?\n)))
+ (insert "\n"))
(set-marker final-context-start
- (- (point) (- end (match-end 0))))
- (goto-char (- (point) (- end start)))
- (setq tem nlines)
+ (+ (- (point) (- end (match-end 0)))
+ (if (save-excursion
+ (set-buffer buffer)
+ (save-excursion
+ (goto-char (match-end 0))
+ (end-of-line)
+ (bolp)))
+ 1 0)))
+ (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)
+
+ ;; Now go back to the start of the matching text
+ ;; adding the space and colon to the start of each line.
+ (goto-char insertion-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)))
- (let ((this-linenum linenum)
- line-start)
+
+ ;; 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 ?:)
- (setq line-start
- (save-excursion
- (beginning-of-line)
- (point)))
- (put-text-property line-start
- (save-excursion
- (end-of-line)
- (point))
- 'mouse-face 'highlight)
- (if list-matching-lines-face
- (put-text-property
- (+ line-start match-offset)
- (+ line-start match-offset match-len)
- 'face list-matching-lines-face))
(forward-line 1)
(setq tag nil)
(setq this-linenum (1+ this-linenum)))
- (while (<= (point) final-context-start)
+ (while (and (not (eobp)) (<= (point) final-context-start))
(insert empty ?:)
(forward-line 1)
(setq this-linenum (1+ this-linenum))))
- (while (< tem nlines)
+
+ ;; 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)
- ;; Put positions in increasing order to go with buffer.
- (setq occur-pos-list (nreverse occur-pos-list))
+ ;; Go back to top of *Occur* and finish off by printing the
+ ;; number of matching lines.
(goto-char (point-min))
(let ((message-string
- (if (= (length occur-pos-list) 1)
+ (if (= occur-num-matches 1)
"1 line"
- (format "%d lines" (length occur-pos-list)))))
+ (format "%d lines" occur-num-matches))))
(insert message-string)
(if (interactive-p)
- (message "%s matched" message-string)))))))))
+ (message "%s matched" message-string)))
+ (setq buffer-read-only t)))))))
\f
;; It would be nice to use \\[...], but there is no reasonable way
;; to make that display both SPC and Y.
(define-key query-replace-map "\e" 'exit-prefix)
(define-key query-replace-map [escape] 'exit-prefix)
+(defun replace-match-string-symbols (n)
+ ;; Process a list (and any sub-lists), expanding certain symbols:
+ ;; Symbol Expands To
+ ;; N (match-string N) (where N is a string of digits)
+ ;; #N (string-to-number (match-string N))
+ ;; & (match-string 0)
+ ;; #& (string-to-number (match-string 0))
+ ;;
+ ;; Note that these symbols must be preceeded by a backslash in order to
+ ;; type them.
+ (while n
+ (cond
+ ((consp (car n))
+ (replace-match-string-symbols (car n))) ;Process sub-list
+ ((symbolp (car n))
+ (let ((name (symbol-name (car n))))
+ (cond
+ ((string-match "^[0-9]+$" name)
+ (setcar n (list 'match-string (string-to-number name))))
+ ((string-match "^#[0-9]+$" name)
+ (setcar n (list 'string-to-number
+ (list 'match-string
+ (string-to-number (substring name 1))))))
+ ((string= "&" name)
+ (setcar n '(match-string 0)))
+ ((string= "#&" name)
+ (setcar n '(string-to-number (match-string 0))))))))
+ (setq n (cdr n))))
+
+(defun replace-eval-replacement (expression replace-count)
+ (let ((replacement (eval expression)))
+ (if (stringp replacement)
+ replacement
+ (prin1-to-string replacement t))))
+
+(defun replace-loop-through-replacements (data replace-count)
+ ;; DATA is a vector contaning the following values:
+ ;; 0 next-rotate-count
+ ;; 1 repeat-count
+ ;; 2 next-replacement
+ ;; 3 replacements
+ (if (= (aref data 0) replace-count)
+ (progn
+ (aset data 0 (+ replace-count (aref data 1)))
+ (let ((next (cdr (aref data 2))))
+ (aset data 2 (if (consp next) next (aref data 3))))))
+ (car (aref data 2)))
+
(defun perform-replace (from-string replacements
query-flag regexp-flag delimited-flag
&optional repeat-count map)
(let ((nocasify (not (and case-fold-search case-replace
(string-equal from-string
(downcase from-string)))))
+ (case-fold-search (and case-fold-search
+ (string-equal from-string
+ (downcase from-string))))
(literal (not regexp-flag))
(search-function (if regexp-flag 're-search-forward 'search-forward))
(search-string from-string)
(real-match-data nil) ; the match data for the current match
(next-replacement nil)
- (replacement-index 0)
(keep-going t)
(stack nil)
- (next-rotate-count 0)
(replace-count 0)
- (lastrepl nil) ;Position after last match considered.
+ (nonempty-match nil)
+
+ ;; If non-nil, it is marker saying where in the buffer to stop.
+ (limit 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)))
+
+ ;; If region is active, in Transient Mark mode, operate on region.
+ (if (and transient-mark-mode mark-active)
+ (progn
+ (setq limit (copy-marker (region-end)))
+ (goto-char (region-beginning))
+ (deactivate-mark)))
+
+ ;; REPLACEMENTS is either a string, a list of strings, or a cons cell
+ ;; containing a function and its first argument. The function is
+ ;; called to generate each replacement like this:
+ ;; (funcall (car replacements) (cdr replacements) replace-count)
+ ;; It must return a string.
+ (cond
+ ((stringp replacements)
+ (setq next-replacement replacements
+ replacements nil))
+ ((stringp (car replacements)) ; If it isn't a string, it must be a cons
+ (or repeat-count (setq repeat-count 1))
+ (setq replacements (cons 'replace-loop-through-replacements
+ (vector repeat-count repeat-count
+ replacements replacements)))))
+
(if delimited-flag
(setq search-function 're-search-forward
search-string (concat "\\b"
;; 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.
- ;; For speed, use only integers and reuse the list used last time.
- (setq real-match-data (match-data t real-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)))))
+ ;; 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 limit 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)))))
+
+ ;; Calculate the replacement string, if necessary.
+ (when replacements
+ (set-match-data real-match-data)
+ (setq next-replacement
+ (funcall (car replacements) (cdr replacements)
+ replace-count)))
(if (not query-flag)
(progn
- (store-match-data real-match-data)
+ (set-match-data real-match-data)
(replace-match next-replacement nocasify literal)
(setq replace-count (1+ replace-count)))
(undo-boundary)
;; 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)
+ (set-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.
(setq key (read-event))
;; Necessary in case something happens during read-event
;; that clobbers the match data.
- (store-match-data real-match-data)
+ (set-match-data real-match-data)
(setq key (vector key))
(setq def (lookup-key map key))
;; Restore the match data while we process the command.
(goto-char (car elt))
(setq replaced (eq t (cdr elt)))
(or replaced
- (store-match-data (cdr elt)))
+ (set-match-data (cdr elt)))
(setq stack (cdr stack)))
(message "No previous match")
(ding 'no-terminate)
((eq def 'recenter)
(recenter nil))
((eq def 'edit)
- (store-match-data
- (prog1 (match-data)
- (save-excursion (recursive-edit))))
+ (let ((opos (point-marker)))
+ (goto-char (match-beginning 0))
+ (save-excursion
+ (funcall search-function search-string limit t)
+ (setq real-match-data (match-data)))
+ (save-excursion (recursive-edit))
+ (goto-char opos))
+ (set-match-data real-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 (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
+ (set-match-data
(prog1 (match-data)
(save-excursion (recursive-edit))))
(setq replaced t))
(setq stack
(cons (cons (point)
(or replaced (match-data t)))
- stack))))
- (setq lastrepl (point)))
+ stack)))))
(replace-dehighlight))
(or unread-command-events
(message "Replaced %d occurrence%s"
(if (= replace-count 1) "" "s")))
(and keep-going stack)))
-(defcustom query-replace-highlight nil
+(defcustom query-replace-highlight t
"*Non-nil means to highlight words during query replacement."
:type 'boolean
:group 'matching)
HCoop / bpt / emacs.git / blobdiff