-;;; replace.el --- replace commands for Emacs.
+;;; replace.el --- replace commands for Emacs
-;; Copyright (C) 1985, 86, 87, 92, 94, 96, 1997, 2000, 2001
-;; Free Software Foundation, Inc.
+;; Copyright (C) 1985, 86, 87, 92, 94, 96, 1997, 2000, 2001, 2002,
+;; 2003, 2004 Free Software Foundation, Inc.
+
+;; Maintainer: FSF
;; This file is part of GNU Emacs.
;;; Code:
(defcustom case-replace t
- "*Non-nil means query-replace should preserve case in replacements."
+ "*Non-nil means `query-replace' should preserve case in replacements."
:type 'boolean
:group 'matching)
(defvar query-replace-history nil)
-(defvar query-replace-interactive nil
+(defcustom query-replace-interactive nil
"Non-nil means `query-replace' uses the last search string.
-That becomes the \"string to replace\".")
+That becomes the \"string to replace\"."
+ :type 'boolean
+ :group 'matching)
(defcustom query-replace-from-history-variable 'query-replace-history
- "History list to use for the FROM argument of query-replace commands.
+ "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."
:version "20.3")
(defcustom query-replace-to-history-variable 'query-replace-history
- "History list to use for the TO argument of query-replace commands.
+ "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."
:type 'symbol
:version "20.3")
-(defun query-replace-read-args (string regexp-flag)
+(defcustom query-replace-skip-read-only nil
+ "*Non-nil means `query-replace' and friends ignore read-only matches."
+ :type 'boolean
+ :group 'matching
+ :version "21.4")
+
+(defun query-replace-read-args (string regexp-flag &optional noerror)
+ (unless noerror
+ (barf-if-buffer-read-only))
(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-from-history-variable
- nil t)))
- (setq to (read-from-minibuffer (format "%s %s with: " string from)
- nil nil nil
- query-replace-to-history-variable from t))
- (if (and transient-mark-mode mark-active)
- (list from to current-prefix-arg (region-beginning) (region-end))
- (list from to current-prefix-arg nil nil))))
+ ;; The save-excursion here is in case the user marks and copies
+ ;; a region in order to specify the minibuffer input.
+ ;; That should not clobber the region for the query-replace itself.
+ (save-excursion
+ (setq from (read-from-minibuffer (format "%s: " string)
+ nil nil nil
+ query-replace-from-history-variable
+ nil t)))
+ ;; Warn if user types \n or \t, but don't reject the input.
+ (and regexp-flag
+ (string-match "\\(\\`\\|[^\\]\\)\\(\\\\\\\\\\)*\\(\\\\[nt]\\)" from)
+ (let ((match (match-string 3 from)))
+ (cond
+ ((string= match "\\n")
+ (message "Note: `\\n' here doesn't match a newline; to do that, type C-q C-j instead"))
+ ((string= match "\\t")
+ (message "Note: `\\t' here doesn't match a tab; to do that, just type TAB")))
+ (sit-for 2))))
+
+ (save-excursion
+ (setq to (read-from-minibuffer (format "%s %s with: " string from)
+ nil nil nil
+ query-replace-to-history-variable from t)))
+ (list from to current-prefix-arg)))
(defun query-replace (from-string to-string &optional delimited start end)
"Replace some occurrences of FROM-STRING with TO-STRING.
string is used as FROM-STRING--you don't have to specify it with the
minibuffer.
-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.)
+Matching is independent of case if `case-fold-search' is non-nil and
+FROM-STRING has no uppercase letters. Replacement transfers the case
+pattern 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. \(Transferring the case pattern means that if the old text
+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.
Fourth and fifth arg START and END specify the region to operate on.
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 start end t nil delimited))
+ (interactive (let ((common
+ (query-replace-read-args "Query replace" nil)))
+ (list (nth 0 common) (nth 1 common) (nth 2 common)
+ ;; These are done separately here
+ ;; so that command-history will record these expressions
+ ;; rather than the values they had this time.
+ (if (and transient-mark-mode mark-active)
+ (region-beginning))
+ (if (and transient-mark-mode mark-active)
+ (region-end)))))
+ (perform-replace from-string to-string t nil delimited nil nil start end))
(define-key esc-map "%" 'query-replace)
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.
+Matching is independent of case if `case-fold-search' is non-nil and
+REGEXP has no uppercase letters. Replacement transfers the case
+pattern of the old text to the new text, if `case-replace' and
+`case-fold-search' are non-nil and REGEXP has no uppercase letters.
+\(Transferring the case pattern means that if the old text 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.
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 start end t t delimited))
+whatever what matched the Nth `\\(...\\)' in REGEXP.
+
+When this function is called interactively, the replacement text
+can also contain `\\,' followed by a Lisp expression. The escaped
+shorthands for `query-replace-regexp-eval' are also valid
+here: within the Lisp expression, you can use `\\&' for the whole
+match string, `\\N' for partial matches, `\\#&' and `\\#N' for
+the respective numeric values, and `\\#' for `replace-count'.
+
+If your Lisp expression is an identifier and the next
+letter in the replacement string would be interpreted as part of it,
+you can wrap it with an expression like `\\,(or \\#)'. Incidentally,
+for this particular case you may also enter `\\#' in the replacement
+text directly.
+
+When you use `\\,' or `\\#' in the replacement, TO-STRING actually
+becomes a list with expanded shorthands.
+Use \\[repeat-complex-command] after this command to see details."
+ (interactive
+ (let ((common
+ (query-replace-read-args "Query replace regexp" t)))
+ (list
+ (nth 0 common)
+ (if (string-match "\\(\\`\\|[^\\]\\)\\(\\\\\\\\\\)*\\\\[,#]"
+ (nth 1 common))
+ (let ((to-string (nth 1 common)) pos to-expr char prompt)
+ (while (string-match
+ "\\(\\`\\|[^\\]\\)\\(\\\\\\\\\\)*\\\\[,#]"
+ to-string)
+ (setq pos (match-end 0))
+ (push (substring to-string 0 (- pos 2)) to-expr)
+ (setq char (aref to-string (1- pos))
+ to-string (substring to-string pos))
+ (cond ((eq char ?\#)
+ (push '(number-to-string replace-count) to-expr))
+ ((eq char ?\,)
+ (setq pos (read-from-string to-string))
+ (push `(replace-quote ,(car pos)) to-expr)
+ (setq to-string (substring to-string (cdr pos))))))
+ (setq to-expr (nreverse (delete "" (cons to-string to-expr))))
+ (replace-match-string-symbols to-expr)
+ (cons 'replace-eval-replacement
+ (if (> (length to-expr) 1)
+ (cons 'concat to-expr)
+ (car to-expr))))
+ (nth 1 common))
+ (nth 2 common)
+ ;; These are done separately here
+ ;; so that command-history will record these expressions
+ ;; rather than the values they had this time.
+ (if (and transient-mark-mode mark-active)
+ (region-beginning))
+ (if (and transient-mark-mode mark-active)
+ (region-end)))))
+ (perform-replace regexp to-string t t delimited nil nil start end))
+
(define-key esc-map [?\C-%] 'query-replace-regexp)
(defun query-replace-regexp-eval (regexp to-expr &optional delimited start end)
`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) to stand for whatever matched the Nth `\(...\)' in REGEXP.
+`\\0' to stand for whatever matched the whole of REGEXP, and `\\N' (where
+N is a digit) to stand for whatever matched the Nth `\\(...\\)' in REGEXP.
Use `\\#&' or `\\#N' if you want a number instead of a string.
+In interactive use, `\\#' in itself stands for `replace-count'.
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.
only matches that are surrounded by word boundaries.
Fourth and fifth arg START and END specify the region to operate on."
(interactive
- (let (from to start end)
- (when (and transient-mark-mode mark-active)
- (setq start (region-beginning)
- end (region-end)))
+ (let (from to)
(if query-replace-interactive
(setq from (car regexp-search-ring))
(setq from (read-from-minibuffer "Query replace regexp: "
;; 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) start end current-prefix-arg)))
+ (list from (car to) current-prefix-arg
+ (if (and transient-mark-mode mark-active)
+ (region-beginning))
+ (if (and transient-mark-mode mark-active)
+ (region-end)))))
(perform-replace regexp (cons 'replace-eval-replacement to-expr)
- start end t t delimited))
+ t 'literal delimited nil nil start end))
(defun map-query-replace-regexp (regexp to-strings &optional n start end)
"Replace some matches for REGEXP with various strings, in rotation.
before rotating to the next.
Fourth and fifth arg START and END specify the region to operate on."
(interactive
- (let (from to start end)
- (when (and transient-mark-mode mark-active)
- (setq start (region-beginning)
- end (region-end)))
+ (let (from to)
(setq from (if query-replace-interactive
(car regexp-search-ring)
(read-from-minibuffer "Map query replace (regexp): "
from)
nil nil nil
'query-replace-history from t))
- (list from to start end current-prefix-arg)))
+ (list from to
+ (and current-prefix-arg
+ (prefix-numeric-value current-prefix-arg))
+ (if (and transient-mark-mode mark-active)
+ (region-beginning))
+ (if (and transient-mark-mode mark-active)
+ (region-end)))))
(let (replacements)
(if (listp to-strings)
(setq replacements to-strings)
(1+ (string-match " " to-strings))))
(setq replacements (append replacements (list to-strings))
to-strings ""))))
- (perform-replace regexp replacements start end t t nil n)))
+ (perform-replace regexp replacements t t nil n nil start end)))
(defun replace-string (from-string to-string &optional delimited start end)
"Replace occurrences of FROM-STRING with TO-STRING.
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 start end nil nil delimited))
+ (interactive
+ (let ((common
+ (query-replace-read-args "Replace string" nil)))
+ (list (nth 0 common) (nth 1 common) (nth 2 common)
+ (if (and transient-mark-mode mark-active)
+ (region-beginning))
+ (if (and transient-mark-mode mark-active)
+ (region-end)))))
+ (perform-replace from-string to-string nil nil delimited nil nil start end))
(defun replace-regexp (regexp to-string &optional delimited start end)
"Replace things after point matching REGEXP with TO-STRING.
(while (re-search-forward REGEXP nil t)
(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" t))
- (perform-replace regexp to-string start end nil t delimited))
+ (interactive
+ (let ((common
+ (query-replace-read-args "Replace regexp" t)))
+ (list (nth 0 common) (nth 1 common) (nth 2 common)
+ (if (and transient-mark-mode mark-active)
+ (region-beginning))
+ (if (and transient-mark-mode mark-active)
+ (region-end)))))
+ (perform-replace regexp to-string nil t delimited nil nil start end))
\f
(defvar regexp-history nil
(defun keep-lines-read-args (prompt)
"Read arguments for `keep-lines' and friends.
Prompt for a regexp with PROMPT.
-
-Value is a list (REGEXP START END).
-
-If in Transient Mark node, and the mark is active, START is the
-start of the region, and end is a marker for the end of the region.
-Otherwise, START is the current point, and END is `point-max-marker'."
- (let ((regexp (read-from-minibuffer prompt nil nil nil
- 'regexp-history nil t))
- start end)
- (if (and transient-mark-mode mark-active)
- (setq start (region-beginning)
- end (save-excursion (goto-char (region-end)) (point-marker)))
- (setq start (point)
- end (point-max-marker)))
- (list regexp start end)))
-
+Value is a list, (REGEXP)."
+ (list (read-from-minibuffer prompt nil nil nil
+ 'regexp-history nil t)))
(defun keep-lines (regexp &optional rstart rend)
"Delete all lines except those containing matches for REGEXP.
Second and third arg RSTART and REND specify the region to operate on.
-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."
+Interactively, in Transient Mark mode when the mark is active, operate
+on the contents of the region. Otherwise, operate from point to the
+end of the buffer."
+
(interactive
- (keep-lines-read-args "Keep lines (containing match for regexp): "))
+ (progn
+ (barf-if-buffer-read-only)
+ (keep-lines-read-args "Keep lines (containing match for regexp): ")))
(if rstart
- (goto-char (min rstart rend))
- (setq rstart (point) rend (point-max-marker)))
+ (progn
+ (goto-char (min rstart rend))
+ (setq rend (copy-marker (max rstart rend))))
+ (if (and transient-mark-mode mark-active)
+ (setq rstart (region-beginning)
+ rend (copy-marker (region-end)))
+ (setq rstart (point)
+ rend (point-max-marker)))
+ (goto-char rstart))
(save-excursion
(or (bolp) (forward-line 1))
(let ((start (point))
;; Now end is first char preserved by the new match.
(if (< start end)
(delete-region start end))))
-
+
(setq start (save-excursion (forward-line 1) (point)))
;; If the match was empty, avoid matching again at same place.
(and (< (point) rend)
Second and third arg RSTART and REND specify the region to operate on.
-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."
+Interactively, in Transient Mark mode when the mark is active, operate
+on the contents of the region. Otherwise, operate from point to the
+end of the buffer."
+
(interactive
- (keep-lines-read-args "Flush lines (containing match for regexp): "))
+ (progn
+ (barf-if-buffer-read-only)
+ (keep-lines-read-args "Flush lines (containing match for regexp): ")))
(if rstart
- (goto-char (min rstart rend))
- (setq rstart (point) rend (point-max-marker)))
+ (progn
+ (goto-char (min rstart rend))
+ (setq rend (copy-marker (max rstart rend))))
+ (if (and transient-mark-mode mark-active)
+ (setq rstart (region-beginning)
+ rend (copy-marker (region-end)))
+ (setq rstart (point)
+ rend (point-max-marker)))
+ (goto-char rstart))
(let ((case-fold-search (and case-fold-search
(isearch-no-upper-case-p regexp t))))
(save-excursion
Second and third arg RSTART and REND specify the region to operate on.
-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."
+Interactively, in Transient Mark mode when the mark is active, operate
+on the contents of the region. Otherwise, operate from point to the
+end of the buffer."
+
(interactive
(keep-lines-read-args "How many matches for (regexp): "))
- (if rstart
- (goto-char (min rstart rend))
- (setq rstart (point) rend (point-max-marker)))
- (let ((count 0)
- opoint
- (case-fold-search (and case-fold-search
- (isearch-no-upper-case-p regexp t))))
- (save-excursion
- (while (and (< (point) rend)
- (progn (setq opoint (point))
- (re-search-forward regexp rend t)))
- (if (= opoint (point))
- (forward-char 1)
- (setq count (1+ count))))
- (message "%d occurrences" count))))
+ (save-excursion
+ (if rstart
+ (goto-char (min rstart rend))
+ (if (and transient-mark-mode mark-active)
+ (setq rstart (region-beginning)
+ rend (copy-marker (region-end)))
+ (setq rstart (point)
+ rend (point-max-marker)))
+ (goto-char rstart))
+ (let ((count 0)
+ opoint
+ (case-fold-search (and case-fold-search
+ (isearch-no-upper-case-p regexp t))))
+ (while (and (< (point) rend)
+ (progn (setq opoint (point))
+ (re-search-forward regexp rend t)))
+ (if (= opoint (point))
+ (forward-char 1)
+ (setq count (1+ count))))
+ (message "%d occurrences" count))))
\f
-(defvar occur-mode-map ())
-(if occur-mode-map
- ()
- (setq occur-mode-map (make-sparse-keymap))
- (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-mode-map
+ (let ((map (make-sparse-keymap)))
+ (define-key map [mouse-2] 'occur-mode-mouse-goto)
+ (define-key map "\C-c\C-c" 'occur-mode-goto-occurrence)
+ (define-key map "\C-m" 'occur-mode-goto-occurrence)
+ (define-key map "o" 'occur-mode-goto-occurrence-other-window)
+ (define-key map "\C-o" 'occur-mode-display-occurrence)
+ (define-key map "\M-n" 'occur-next)
+ (define-key map "\M-p" 'occur-prev)
+ (define-key map "r" 'occur-rename-buffer)
+ (define-key map "c" 'clone-buffer)
+ (define-key map "g" 'revert-buffer)
+ (define-key map "q" 'quit-window)
+ (define-key map "z" 'kill-this-buffer)
+ map)
+ "Keymap for `occur-mode'.")
+
+(defvar occur-revert-arguments nil
+ "Arguments to pass to `occur-1' to revert an Occur mode buffer.
+See `occur-revert-function'.")
+
+(defcustom occur-mode-hook '(turn-on-font-lock)
+ "Hook run when entering Occur mode."
+ :type 'hook
+ :group 'matching)
-(defvar occur-command-arguments nil
- "Arguments that were given to `occur' when it made this buffer.")
+(defcustom occur-hook nil
+ "Hook run when `occur' is called."
+ :type 'hook
+ :group 'matching)
(put 'occur-mode 'mode-class 'special)
-
(defun occur-mode ()
"Major mode for output from \\[occur].
\\<occur-mode-map>Move point to one of the items in this buffer, then use
Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it.
\\{occur-mode-map}"
+ (interactive)
(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-command-arguments)
+ (set (make-local-variable 'revert-buffer-function) 'occur-revert-function)
+ (make-local-variable 'occur-revert-arguments)
+ (add-hook 'change-major-mode-hook 'font-lock-defontify nil t)
+ (setq next-error-function 'occur-next-error)
(run-hooks 'occur-mode-hook))
(defun occur-revert-function (ignore1 ignore2)
- "Handle revert-buffer for *Occur* buffers."
- (let ((args occur-command-arguments ))
- (save-excursion
- (set-buffer occur-buffer)
- (apply 'occur args))))
+ "Handle `revert-buffer' for Occur mode buffers."
+ (apply 'occur-1 (append occur-revert-arguments (list (buffer-name)))))
(defun occur-mode-mouse-goto (event)
"In Occur mode, go to the occurrence whose line you click on."
(interactive "e")
- (let (buffer pos)
+ (let (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))))
+ (setq pos (occur-mode-find-occurrence))))
+ (pop-to-buffer (marker-buffer pos))
+ (goto-char pos)))
(defun occur-mode-find-occurrence ()
- (if (or (null occur-buffer)
- (null (buffer-name occur-buffer)))
- (progn
- (setq occur-buffer nil)
- (error "Buffer in which occurrences were found is deleted")))
- (let ((pos (get-text-property (point) 'occur)))
- (if (null pos)
- (error "No occurrence on this line")
- pos)))
+ (let ((pos (get-text-property (point) 'occur-target)))
+ (unless pos
+ (error "No occurrence on this line"))
+ (unless (buffer-live-p (marker-buffer pos))
+ (error "Buffer for this occurrence was killed"))
+ 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))))
+ (pop-to-buffer (marker-buffer pos))
+ (goto-char pos)))
-(defun occur-next (&optional n)
- "Move to the Nth (default 1) next match in the *Occur* buffer."
- (interactive "p")
+(defun occur-mode-goto-occurrence-other-window ()
+ "Go to the occurrence the current line describes, in another window."
+ (interactive)
+ (let ((pos (occur-mode-find-occurrence)))
+ (switch-to-buffer-other-window (marker-buffer pos))
+ (goto-char pos)))
+
+(defun occur-mode-display-occurrence ()
+ "Display in another window the occurrence the current line describes."
+ (interactive)
+ (let ((pos (occur-mode-find-occurrence))
+ window
+ ;; Bind these to ensure `display-buffer' puts it in another window.
+ same-window-buffer-names
+ same-window-regexps)
+ (setq window (display-buffer (marker-buffer pos)))
+ ;; This is the way to set point in the proper window.
+ (save-selected-window
+ (select-window window)
+ (goto-char pos))))
+
+(defun occur-find-match (n search message)
(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))
+ (setq r (funcall search (point) 'occur-match))
+ (and r
+ (get-text-property r 'occur-match)
+ (setq r (funcall search r 'occur-match)))
(if r
- (goto-char r)
- (error "No more matches"))
+ (goto-char r)
+ (error message))
(setq n (1- n)))))
-
+(defun occur-next (&optional n)
+ "Move to the Nth (default 1) next match in an Occur mode buffer."
+ (interactive "p")
+ (occur-find-match n #'next-single-property-change "No more matches"))
(defun occur-prev (&optional n)
- "Move to the Nth (default 1) previous match in the *Occur* buffer."
+ "Move to the Nth (default 1) previous match in an Occur mode 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)))))
+ (occur-find-match n #'previous-single-property-change "No earlier matches"))
+
+(defun occur-next-error (&optional argp reset)
+ "Move to the Nth (default 1) next match in an Occur mode buffer.
+Compatibility function for \\[next-error] invocations."
+ (interactive "p")
+ (when reset
+ (occur-find-match 0 #'next-single-property-change "No first match"))
+ (occur-find-match
+ (prefix-numeric-value argp)
+ (if (> 0 (prefix-numeric-value argp))
+ #'previous-single-property-change
+ #'next-single-property-change)
+ "No more matches")
+ (occur-mode-goto-occurrence))
+
\f
(defcustom list-matching-lines-default-context-lines 0
"*Default number of context lines included around `list-matching-lines' matches.
(defalias 'list-matching-lines 'occur)
-(defvar list-matching-lines-face 'bold
+(defcustom list-matching-lines-face 'bold
"*Face used by \\[list-matching-lines] to show the text that matches.
-If the value is nil, don't highlight the matching portions specially.")
+If the value is nil, don't highlight the matching portions specially."
+ :type 'face
+ :group 'matching)
+
+(defcustom list-matching-lines-buffer-name-face 'underline
+ "*Face used by \\[list-matching-lines] to show the names of buffers.
+If the value is nil, don't highlight the buffer names specially."
+ :type 'face
+ :group 'matching)
+
+(defun occur-accumulate-lines (count &optional no-props)
+ (save-excursion
+ (let ((forwardp (> count 0))
+ (result nil))
+ (while (not (or (zerop count)
+ (if forwardp
+ (eobp)
+ (bobp))))
+ (setq count (+ count (if forwardp -1 1)))
+ (push
+ (funcall (if no-props
+ #'buffer-substring-no-properties
+ #'buffer-substring)
+ (line-beginning-position)
+ (line-end-position))
+ result)
+ (forward-line (if forwardp 1 -1)))
+ (nreverse result))))
+
+(defun occur-read-primary-args ()
+ (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))
+ (when current-prefix-arg
+ (prefix-numeric-value current-prefix-arg))))
+
+(defun occur-rename-buffer (&optional unique-p)
+ "Rename the current *Occur* buffer to *Occur: original-buffer-name*.
+Here `original-buffer-name' is the buffer name were occur was originally run.
+When given the prefix argument, the renaming will not clobber the existing
+buffer(s) of that name, but use `generate-new-buffer-name' instead.
+You can add this to `occur-hook' if you always want a separate *Occur*
+buffer for each buffer where you invoke `occur'."
+ (interactive "P")
+ (with-current-buffer
+ (if (eq major-mode 'occur-mode) (current-buffer) (get-buffer "*Occur*"))
+ (rename-buffer (concat "*Occur: "
+ (mapconcat #'buffer-name
+ (car (cddr occur-revert-arguments)) "/")
+ "*")
+ unique-p)))
(defun occur (regexp &optional nlines)
"Show all lines in the current buffer containing a match for REGEXP.
If REGEXP contains upper case characters (excluding those preceded by `\\'),
the matching is case-sensitive."
+ (interactive (occur-read-primary-args))
+ (occur-1 regexp nlines (list (current-buffer))))
+
+(defun multi-occur (bufs regexp &optional nlines)
+ "Show all lines in buffers BUFS containing a match for REGEXP.
+This function acts on multiple buffers; otherwise, it is exactly like
+`occur'."
(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 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))
- (current-tab-width tab-width)
- ;; Minimum width of line number plus trailing colon.
- (min-line-number-width 6)
- ;; Width of line number prefix without the colon. Choose a
- ;; width that's a multiple of `tab-width' in the original
- ;; buffer so that lines in *Occur* appear right.
- (line-number-width (1- (* (/ (- (+ min-line-number-width
- tab-width)
- 1)
- tab-width)
- tab-width)))
- ;; Format string for line numbers.
- (line-number-format (format "%%%dd" line-number-width))
- (empty (make-string line-number-width ?\ ))
- (first t)
- ;;flag to prevent printing separator for first match
- (occur-num-matches 0)
- (buffer (current-buffer))
- (dir default-directory)
- (linenum 1)
- (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)))
- (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 (eobp))
- (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 point of text in source buffer to be put
- ;;into *Occur*
- (start (save-excursion
- (goto-char (match-beginning 0))
- (forward-line (if (< nlines 0)
- nlines
- (- nlines)))
- (point)))
- ;; end point of text in source buffer to be put
- ;; into *Occur*
- (end (save-excursion
- (goto-char (match-end 0))
- (if (> nlines 0)
- (forward-line (1+ nlines))
- (forward-line 1))
- (point)))
- ;; Amount of context before matching text
- (match-beg (- (match-beginning 0) start))
- ;; Length of matching text
- (match-len (- (match-end 0) (match-beginning 0)))
- (tag (format line-number-format linenum))
- 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 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)
- (save-excursion
- (set-buffer "*Occur*")
- (setq tab-width current-tab-width))
-
- ;; 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)))
- (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)))
-
- ;; 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 line-number-format this-linenum)))
- (insert tag ?:)
- (forward-line 1)
- (setq tag nil)
- (setq this-linenum (1+ this-linenum)))
- (while (and (not (eobp)) (<= (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)))
- (setq buffer-read-only t)))))))
+ (cons
+ (let* ((bufs (list (read-buffer "First buffer to search: "
+ (current-buffer) t)))
+ (buf nil)
+ (ido-ignore-item-temp-list bufs))
+ (while (not (string-equal
+ (setq buf (read-buffer
+ (if (eq read-buffer-function 'ido-read-buffer)
+ "Next buffer to search (C-j to end): "
+ "Next buffer to search (RET to end): ")
+ nil t))
+ ""))
+ (add-to-list 'bufs buf)
+ (setq ido-ignore-item-temp-list bufs))
+ (nreverse (mapcar #'get-buffer bufs)))
+ (occur-read-primary-args)))
+ (occur-1 regexp nlines bufs))
+
+(defun multi-occur-by-filename-regexp (bufregexp regexp &optional nlines)
+ "Show all lines matching REGEXP in buffers named by BUFREGEXP.
+See also `multi-occur'."
+ (interactive
+ (cons
+ (let* ((default (car regexp-history))
+ (input
+ (read-from-minibuffer
+ "List lines in buffers whose filename matches regexp: "
+ nil
+ nil
+ nil
+ 'regexp-history)))
+ (if (equal input "")
+ default
+ input))
+ (occur-read-primary-args)))
+ (when bufregexp
+ (occur-1 regexp nlines
+ (delq nil
+ (mapcar (lambda (buf)
+ (when (and (buffer-file-name buf)
+ (string-match bufregexp
+ (buffer-file-name buf)))
+ buf))
+ (buffer-list))))))
+
+(defun occur-1 (regexp nlines bufs &optional buf-name)
+ (unless buf-name
+ (setq buf-name "*Occur*"))
+ (let ((occur-buf (get-buffer-create buf-name))
+ (made-temp-buf nil)
+ (active-bufs (delq nil (mapcar #'(lambda (buf)
+ (when (buffer-live-p buf) buf))
+ bufs))))
+ ;; Handle the case where one of the buffers we're searching is the
+ ;; *Occur* buffer itself.
+ (when (memq occur-buf bufs)
+ (setq occur-buf (with-current-buffer occur-buf
+ (clone-buffer "*Occur-temp*"))
+ made-temp-buf t))
+ (with-current-buffer occur-buf
+ (setq buffer-read-only nil)
+ (occur-mode)
+ (erase-buffer)
+ (let ((count (occur-engine
+ regexp active-bufs occur-buf
+ (or nlines list-matching-lines-default-context-lines)
+ (and case-fold-search
+ (isearch-no-upper-case-p regexp t))
+ list-matching-lines-buffer-name-face
+ nil list-matching-lines-face nil)))
+ (let* ((bufcount (length active-bufs))
+ (diff (- (length bufs) bufcount)))
+ (message "Searched %d buffer%s%s; %s match%s for `%s'"
+ bufcount (if (= bufcount 1) "" "s")
+ (if (zerop diff) "" (format " (%d killed)" diff))
+ (if (zerop count) "no" (format "%d" count))
+ (if (= count 1) "" "es")
+ regexp))
+ ;; If we had to make a temporary buffer, make it the *Occur*
+ ;; buffer now.
+ (when made-temp-buf
+ (with-current-buffer (get-buffer buf-name)
+ (kill-buffer (current-buffer)))
+ (rename-buffer buf-name))
+ (setq occur-revert-arguments (list regexp nlines bufs)
+ buffer-read-only t)
+ (if (> count 0)
+ (progn
+ (display-buffer occur-buf)
+ (setq next-error-last-buffer occur-buf))
+ (kill-buffer occur-buf)))
+ (run-hooks 'occur-hook))))
+
+(defun occur-engine-add-prefix (lines)
+ (mapcar
+ #'(lambda (line)
+ (concat " :" line "\n"))
+ lines))
+
+(defun occur-engine (regexp buffers out-buf nlines case-fold-search
+ title-face prefix-face match-face keep-props)
+ (with-current-buffer out-buf
+ (setq buffer-read-only nil)
+ (let ((globalcount 0)
+ (coding nil))
+ ;; Map over all the buffers
+ (dolist (buf buffers)
+ (when (buffer-live-p buf)
+ (let ((matches 0) ;; count of matched lines
+ (lines 1) ;; line count
+ (matchbeg 0)
+ (matchend 0)
+ (origpt nil)
+ (begpt nil)
+ (endpt nil)
+ (marker nil)
+ (curstring "")
+ (headerpt (with-current-buffer out-buf (point))))
+ (save-excursion
+ (set-buffer buf)
+ (or coding
+ ;; Set CODING only if the current buffer locally
+ ;; binds buffer-file-coding-system.
+ (not (local-variable-p 'buffer-file-coding-system))
+ (setq coding buffer-file-coding-system))
+ (save-excursion
+ (goto-char (point-min)) ;; begin searching in the buffer
+ (while (not (eobp))
+ (setq origpt (point))
+ (when (setq endpt (re-search-forward regexp nil t))
+ (setq matches (1+ matches)) ;; increment match count
+ (setq matchbeg (match-beginning 0)
+ matchend (match-end 0))
+ (setq begpt (save-excursion
+ (goto-char matchbeg)
+ (line-beginning-position)))
+ (setq lines (+ lines (1- (count-lines origpt endpt))))
+ (setq marker (make-marker))
+ (set-marker marker matchbeg)
+ (setq curstring (buffer-substring begpt
+ (line-end-position)))
+ ;; Depropertize the string, and maybe
+ ;; highlight the matches
+ (let ((len (length curstring))
+ (start 0))
+ (unless keep-props
+ (set-text-properties 0 len nil curstring))
+ (while (and (< start len)
+ (string-match regexp curstring start))
+ (add-text-properties (match-beginning 0)
+ (match-end 0)
+ (append
+ `(occur-match t)
+ (when match-face
+ `(font-lock-face ,match-face)))
+ curstring)
+ (setq start (match-end 0))))
+ ;; Generate the string to insert for this match
+ (let* ((out-line
+ (concat
+ ;; Using 7 digits aligns tabs properly.
+ (apply #'propertize (format "%7d:" lines)
+ (append
+ (when prefix-face
+ `(font-lock-face prefix-face))
+ '(occur-prefix t)))
+ curstring
+ "\n"))
+ (data
+ (if (= nlines 0)
+ ;; The simple display style
+ out-line
+ ;; The complex multi-line display
+ ;; style. Generate a list of lines,
+ ;; concatenate them all together.
+ (apply #'concat
+ (nconc
+ (occur-engine-add-prefix (nreverse (cdr (occur-accumulate-lines (- (1+ nlines)) keep-props))))
+ (list out-line)
+ (occur-engine-add-prefix (cdr (occur-accumulate-lines (1+ nlines) keep-props))))))))
+ ;; Actually insert the match display data
+ (with-current-buffer out-buf
+ (let ((beg (point))
+ (end (progn (insert data) (point))))
+ (unless (= nlines 0)
+ (insert "-------\n"))
+ (add-text-properties
+ beg end
+ `(occur-target ,marker help-echo "mouse-2: go to this occurrence"))
+ ;; We don't put `mouse-face' on the newline,
+ ;; because that loses.
+ (add-text-properties beg (1- end) '(mouse-face highlight)))))
+ (goto-char endpt))
+ (if endpt
+ (progn
+ (setq lines (1+ lines))
+ ;; On to the next match...
+ (forward-line 1))
+ (goto-char (point-max))))))
+ (when (not (zerop matches)) ;; is the count zero?
+ (setq globalcount (+ globalcount matches))
+ (with-current-buffer out-buf
+ (goto-char headerpt)
+ (let ((beg (point))
+ end)
+ (insert (format "%d match%s for \"%s\" in buffer: %s\n"
+ matches (if (= matches 1) "" "es")
+ regexp (buffer-name buf)))
+ (setq end (point))
+ (add-text-properties beg end
+ (append
+ (when title-face
+ `(font-lock-face ,title-face))
+ `(occur-title ,buf))))
+ (goto-char (point-min)))))))
+ (if coding
+ ;; CODING is buffer-file-coding-system of the first buffer
+ ;; that locally binds it. Let's use it also for the output
+ ;; buffer.
+ (set-buffer-file-coding-system coding))
+ ;; Return the number of matches
+ globalcount)))
+
\f
;; It would be nice to use \\[...], but there is no reasonable way
;; to make that display both SPC and Y.
! to replace all remaining matches with no more questions,
^ to move point back to previous match,
E to edit the replacement string"
- "Help message while in query-replace")
+ "Help message while in `query-replace'.")
(defvar query-replace-map (make-sparse-keymap)
"Keymap that defines the responses to questions in `query-replace'.
#N (string-to-number (match-string N))
& (match-string 0)
#& (string-to-number (match-string 0))
+# replace-count
Note that these symbols must be preceeded by a backslash in order to
type them."
((string= "&" name)
(setcar n '(match-string 0)))
((string= "#&" name)
- (setcar n '(string-to-number (match-string 0))))))))
+ (setcar n '(string-to-number (match-string 0))))
+ ((string= "#" name)
+ (setcar n 'replace-count))))))
(setq n (cdr n))))
(defun replace-eval-replacement (expression replace-count)
replacement
(prin1-to-string replacement t))))
+(defun replace-quote (replacement)
+ "Quote a replacement string.
+This just doubles all backslashes in REPLACEMENT and
+returns the resulting string. If REPLACEMENT is not
+a string, it is first passed through `prin1-to-string'
+with the `noescape' argument set.
+
+`match-data' is preserved across the call."
+ (save-match-data
+ (replace-regexp-in-string "\\\\" "\\\\"
+ (if (stringp replacement)
+ replacement
+ (prin1-to-string replacement t))
+ t t)))
+
(defun replace-loop-through-replacements (data replace-count)
;; DATA is a vector contaning the following values:
;; 0 next-rotate-count
(aset data 2 (if (consp next) next (aref data 3))))))
(car (aref data 2)))
-(defun perform-replace (from-string replacements start end
+(defun perform-replace (from-string replacements
query-flag regexp-flag delimited-flag
- &optional repeat-count map)
+ &optional repeat-count map start end)
"Subroutine of `query-replace'. Its complexity handles interactive queries.
Don't use this in your own program unless you want to query and set the mark
just as `query-replace' does. Instead, write a simple loop like this:
- (while (re-search-forward \"foo[ \t]+bar\" nil t)
+
+ (while (re-search-forward \"foo[ \\t]+bar\" nil t)
(replace-match \"foobar\" nil nil))
-which will run faster and probably do exactly what you want."
+
+which will run faster and probably do exactly what you want. Please
+see the documentation of `replace-match' to find out how to simulate
+`case-replace'.
+
+This function returns nil if and only if there were no matches to
+make, or the user didn't cancel the call."
(or map (setq map query-replace-map))
(and query-flag minibuffer-auto-raise
(raise-frame (window-frame (minibuffer-window))))
(case-fold-search (and case-fold-search
(string-equal from-string
(downcase from-string))))
- (literal (not regexp-flag))
+ (literal (or (not regexp-flag) (eq regexp-flag 'literal)))
(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
(unwind-protect
;; Loop finding occurrences that perhaps should be replaced.
(while (and keep-going
- (not (eobp))
+ (not (or (eobp) (and limit (>= (point) limit))))
;; Use the next match if it is already known;
;; otherwise, search for a match after moving forward
;; one char if progress is required.
;; character too far at the end,
;; but this is undone after the
;; while-loop.
- (progn (forward-char 1) (not (eobp))))
+ (progn
+ (forward-char 1)
+ (not (or (eobp)
+ (and limit (>= (point) limit))))))
(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.
- ;; If that match is empty, don't use it.
- (setq match-again
- (and nonempty-match
- (or (not regexp-flag)
- (and (looking-at search-string)
- (let ((match (match-data)))
- (and (/= (nth 0 match) (nth 1 match))
- match))))))
-
- ;; 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
- (set-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)
- (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.
- (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.
- (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.
- (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
- (set-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)
- (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 (and regexp-flag nonempty-match)
- (setq match-again (and (looking-at search-string)
- (match-data)))))
-
- ;; Edit replacement.
- ((eq def 'edit-replacement)
- (setq next-replacement
- (read-input "Edit replacement string: "
- next-replacement))
- (or replaced
- (replace-match next-replacement nocasify literal))
- (setq done t))
-
- ((eq def 'delete-and-edit)
- (delete-region (match-beginning 0) (match-end 0))
- (set-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)))))
+ ;; Optionally ignore matches that have a read-only property.
+ (unless (and query-replace-skip-read-only
+ (text-property-not-all
+ (match-beginning 0) (match-end 0)
+ 'read-only nil))
+
+ ;; 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.
+ ;; If that match is empty, don't use it.
+ (setq match-again
+ (and nonempty-match
+ (or (not regexp-flag)
+ (and (looking-at search-string)
+ (let ((match (match-data)))
+ (and (/= (nth 0 match) (nth 1 match))
+ match))))))
+
+ ;; 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)
+ (let ((inhibit-read-only query-replace-skip-read-only))
+ (set-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)
+ (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.
+ (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.
+ (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.
+ (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)))
+ (with-current-buffer standard-output
+ (help-mode))))
+ ((eq def 'exit)
+ (setq keep-going nil)
+ (setq done t))
+ ((eq def 'backup)
+ (if stack
+ (let ((elt (pop stack)))
+ (goto-char (car elt))
+ (setq replaced (eq t (cdr elt)))
+ (or replaced
+ (set-match-data (cdr elt))))
+ (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)
+ (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
+ (save-window-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 (and regexp-flag nonempty-match)
+ (setq match-again (and (looking-at search-string)
+ (match-data)))))
+
+ ;; Edit replacement.
+ ((eq def 'edit-replacement)
+ (setq next-replacement
+ (read-input "Edit replacement string: "
+ next-replacement))
+ (or replaced
+ (replace-match next-replacement nocasify literal))
+ (setq done t))
+
+ ((eq def 'delete-and-edit)
+ (delete-region (match-beginning 0) (match-end 0))
+ (set-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))))))
;; The code preventing adjacent regexp matches in the condition
;; of the while-loop above will haven taken us one character
;; beyond the last replacement. Undo that.
(when (and regexp-flag (not match-again) (> replace-count 0))
(backward-char 1))
-
+
(replace-dehighlight))
(or unread-command-events
(message "Replaced %d occurrence%s"
'query-replace 'region))))
(move-overlay replace-overlay start end (current-buffer)))))
+;;; arch-tag: 16b4cd61-fd40-497b-b86f-b667c4cf88e4
;;; replace.el ends here