;;; replace.el --- replace commands for Emacs
-;; Copyright (C) 1985-1987, 1992, 1994, 1996-1997, 2000-2013 Free
+;; Copyright (C) 1985-1987, 1992, 1994, 1996-1997, 2000-2014 Free
;; Software Foundation, Inc.
-;; Maintainer: FSF
+;; Maintainer: emacs-devel@gnu.org
;; Package: emacs
;; This file is part of GNU Emacs.
(let* ((from (query-replace-read-from prompt regexp-flag))
(to (if (consp from) (prog1 (cdr from) (setq from (car from)))
(query-replace-read-to from prompt regexp-flag))))
- (list from to current-prefix-arg)))
+ (list from to
+ (and current-prefix-arg (not (eq current-prefix-arg '-)))
+ (and current-prefix-arg (eq current-prefix-arg '-)))))
-(defun query-replace (from-string to-string &optional delimited start end)
+(defun query-replace (from-string to-string &optional delimited start end backward)
"Replace some occurrences of FROM-STRING with TO-STRING.
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.
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
+letters. (Transferring the case pattern means that if the old text
matched is all caps, or capitalized, then its replacement is upcased
or capitalized.)
+Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
+ignore hidden matches if `search-invisible' is nil, and ignore more
+matches using `isearch-filter-predicate'.
+
If `replace-lax-whitespace' is non-nil, a space or spaces in the string
to be replaced will match a sequence of whitespace chars defined by the
regexp in `search-whitespace-regexp'.
Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
-only matches surrounded by word boundaries.
+only matches surrounded by word boundaries. A negative prefix arg means
+replace backward.
+
Fourth and fifth arg START and END specify the region to operate on.
To customize possible responses, change the \"bindings\" in `query-replace-map'."
(let ((common
(query-replace-read-args
(concat "Query replace"
- (if current-prefix-arg " word" "")
+ (if current-prefix-arg
+ (if (eq current-prefix-arg '-) " backward" " word")
+ "")
(if (and transient-mark-mode mark-active) " in region" ""))
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 t nil delimited nil nil start end))
+ (region-end))
+ (nth 3 common))))
+ (perform-replace from-string to-string t nil delimited nil nil start end backward))
(define-key esc-map "%" 'query-replace)
-(defun query-replace-regexp (regexp to-string &optional delimited start end)
+(defun query-replace-regexp (regexp to-string &optional delimited start end backward)
"Replace some things after point matching REGEXP with TO-STRING.
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.
all caps, or capitalized, then its replacement is upcased or
capitalized.)
+Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
+ignore hidden matches if `search-invisible' is nil, and ignore more
+matches using `isearch-filter-predicate'.
+
If `replace-regexp-lax-whitespace' is non-nil, a space or spaces in the regexp
to be replaced will match a sequence of whitespace chars defined by the
regexp in `search-whitespace-regexp'.
Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace
-only matches surrounded by word boundaries.
+only matches surrounded by word boundaries. A negative prefix arg means
+replace backward.
+
Fourth and fifth arg START and END specify the region to operate on.
In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP,
(let ((common
(query-replace-read-args
(concat "Query replace"
- (if current-prefix-arg " word" "")
+ (if current-prefix-arg
+ (if (eq current-prefix-arg '-) " backward" " word")
+ "")
" regexp"
(if (and transient-mark-mode mark-active) " in region" ""))
t)))
(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))
+ (region-end))
+ (nth 3 common))))
+ (perform-replace regexp to-string t t delimited nil nil start end backward))
(define-key esc-map [?\C-%] 'query-replace-regexp)
Preserves case in each replacement if `case-replace' and `case-fold-search'
are non-nil and REGEXP has no uppercase letters.
+Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
+ignore hidden matches if `search-invisible' is nil, and ignore more
+matches using `isearch-filter-predicate'.
+
If `replace-regexp-lax-whitespace' is non-nil, a space or spaces in the regexp
to be replaced will match a sequence of whitespace chars defined by the
regexp in `search-whitespace-regexp'.
Non-interactively, TO-STRINGS may be a list of replacement strings.
+Interactively, reads the regexp using `read-regexp'.
Use \\<minibuffer-local-map>\\[next-history-element] \
to pull the last incremental search regexp to the minibuffer
that reads REGEXP.
to-strings ""))))
(perform-replace regexp replacements t t nil n nil start end)))
-(defun replace-string (from-string to-string &optional delimited start end)
+(defun replace-string (from-string to-string &optional delimited start end backward)
"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.
\(Preserving case means that if the string matched is all caps, or capitalized,
then its replacement is upcased or capitalized.)
+Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
+ignore hidden matches if `search-invisible' is nil, and ignore more
+matches using `isearch-filter-predicate'.
+
If `replace-lax-whitespace' is non-nil, a space or spaces in the string
to be replaced will match a sequence of whitespace chars defined by the
regexp in `search-whitespace-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.
-
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.
+only matches surrounded by word boundaries. A negative prefix arg means
+replace backward.
+
+Operates on the region between START and END (if both are nil, from point
+to the end of the buffer). Interactively, if Transient Mark mode is
+enabled and the mark is active, operates on the contents of the region;
+otherwise from point to the end of the buffer.
Use \\<minibuffer-local-map>\\[next-history-element] \
to pull the last incremental search string to the minibuffer
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.)"
+ (declare (interactive-only
+ "use `search-forward' and `replace-match' instead."))
(interactive
(let ((common
(query-replace-read-args
(concat "Replace"
- (if current-prefix-arg " word" "")
+ (if current-prefix-arg
+ (if (eq current-prefix-arg '-) " backward" " word")
+ "")
" string"
(if (and transient-mark-mode mark-active) " in region" ""))
nil)))
(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))
+ (region-end))
+ (nth 3 common))))
+ (perform-replace from-string to-string nil nil delimited nil nil start end backward))
-(defun replace-regexp (regexp to-string &optional delimited start end)
+(defun replace-regexp (regexp to-string &optional delimited start end backward)
"Replace things after point matching REGEXP with TO-STRING.
Preserve case in each match if `case-replace' and `case-fold-search'
are non-nil and REGEXP has no uppercase letters.
+Ignore read-only matches if `query-replace-skip-read-only' is non-nil,
+ignore hidden matches if `search-invisible' is nil, and ignore more
+matches using `isearch-filter-predicate'.
+
If `replace-regexp-lax-whitespace' is non-nil, a space or spaces in the regexp
to be replaced will match a sequence of whitespace chars defined by the
regexp in `search-whitespace-regexp'.
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.
+only matches surrounded by word boundaries. A negative prefix arg means
+replace backward.
+
Fourth and fifth arg START and END specify the region to operate on.
In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP,
(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."
+ (declare (interactive-only
+ "use `re-search-forward' and `replace-match' instead."))
(interactive
(let ((common
(query-replace-read-args
(concat "Replace"
- (if current-prefix-arg " word" "")
+ (if current-prefix-arg
+ (if (eq current-prefix-arg '-) " backward" " word")
+ "")
" regexp"
(if (and transient-mark-mode mark-active) " in region" ""))
t)))
(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))
+ (region-end))
+ (nth 3 common))))
+ (perform-replace regexp to-string nil t delimited nil nil start end backward))
\f
(defvar regexp-history nil
(defvar occur-collect-regexp-history '("\\1")
"History of regexp for occur's collect operation")
+(defcustom read-regexp-defaults-function nil
+ "Function that provides default regexp(s) for `read-regexp'.
+This function should take no arguments and return one of: nil, a
+regexp, or a list of regexps. Interactively, `read-regexp' uses
+the return value of this function for its DEFAULT argument.
+
+As an example, set this variable to `find-tag-default-as-regexp'
+to default to the symbol at point.
+
+To provide different default regexps for different commands,
+the function that you set this to can check `this-command'."
+ :type '(choice
+ (const :tag "No default regexp reading function" nil)
+ (const :tag "Latest regexp history" regexp-history-last)
+ (function-item :tag "Tag at point"
+ find-tag-default)
+ (function-item :tag "Tag at point as regexp"
+ find-tag-default-as-regexp)
+ (function-item :tag "Tag at point as symbol regexp"
+ find-tag-default-as-symbol-regexp)
+ (function :tag "Your choice of function"))
+ :group 'matching
+ :version "24.4")
+
+(defun read-regexp-suggestions ()
+ "Return a list of standard suggestions for `read-regexp'.
+By default, the list includes the tag at point, the last isearch regexp,
+the last isearch string, and the last replacement regexp. `read-regexp'
+appends the list returned by this function to the end of values available
+via \\<minibuffer-local-map>\\[next-history-element]."
+ (list
+ (find-tag-default-as-regexp)
+ (find-tag-default-as-symbol-regexp)
+ (car regexp-search-ring)
+ (regexp-quote (or (car search-ring) ""))
+ (car (symbol-value query-replace-from-history-variable))))
+
(defun read-regexp (prompt &optional defaults history)
"Read and return a regular expression as a string.
-When PROMPT doesn't end with a colon and space, it adds a final \": \".
-If the first element of DEFAULTS is non-nil, it's added to the prompt.
-
-Optional arg DEFAULTS has the form (DEFAULT . SUGGESTIONS)
-or simply DEFAULT where DEFAULT, if non-nil, should be a string that
-is returned as the default value when the user enters empty input.
-SUGGESTIONS is a list of strings that can be inserted into
-the minibuffer using \\<minibuffer-local-map>\\[next-history-element]. \
-The values supplied in SUGGESTIONS
-are prepended to the list of standard suggestions that include
-the tag at point, the last isearch regexp, the last isearch string,
-and the last replacement regexp.
-
-Optional arg HISTORY is a symbol to use for the history list.
-If HISTORY is nil, `regexp-history' is used."
- (let* ((default (if (consp defaults) (car defaults) defaults))
+Prompt with the string PROMPT. If PROMPT ends in \":\" (followed by
+optional whitespace), use it as-is. Otherwise, add \": \" to the end,
+possibly preceded by the default result (see below).
+
+The optional argument DEFAULTS can be either: nil, a string, a list
+of strings, or a symbol. We use DEFAULTS to construct the default
+return value in case of empty input.
+
+If DEFAULTS is a string, we use it as-is.
+
+If DEFAULTS is a list of strings, the first element is the
+default return value, but all the elements are accessible
+using the history command \\<minibuffer-local-map>\\[next-history-element].
+
+If DEFAULTS is a non-nil symbol, then if `read-regexp-defaults-function'
+is non-nil, we use that in place of DEFAULTS in the following:
+ If DEFAULTS is the symbol `regexp-history-last', we use the first
+ element of HISTORY (if specified) or `regexp-history'.
+ If DEFAULTS is a function, we call it with no arguments and use
+ what it returns, which should be either nil, a string, or a list of strings.
+
+We append the standard values from `read-regexp-suggestions' to DEFAULTS
+before using it.
+
+If the first element of DEFAULTS is non-nil (and if PROMPT does not end
+in \":\", followed by optional whitespace), we add it to the prompt.
+
+The optional argument HISTORY is a symbol to use for the history list.
+If nil, uses `regexp-history'."
+ (let* ((defaults
+ (if (and defaults (symbolp defaults))
+ (cond
+ ((eq (or read-regexp-defaults-function defaults)
+ 'regexp-history-last)
+ (car (symbol-value (or history 'regexp-history))))
+ ((functionp (or read-regexp-defaults-function defaults))
+ (funcall (or read-regexp-defaults-function defaults))))
+ defaults))
+ (default (if (consp defaults) (car defaults) defaults))
(suggestions (if (listp defaults) defaults (list defaults)))
- (suggestions
- (append
- suggestions
- (list
- (find-tag-default-as-regexp)
- (car regexp-search-ring)
- (regexp-quote (or (car search-ring) ""))
- (car (symbol-value query-replace-from-history-variable)))))
+ (suggestions (append suggestions (read-regexp-suggestions)))
(suggestions (delete-dups (delq nil (delete "" suggestions))))
;; Do not automatically add default to the history for empty input.
(history-add-new-input nil)
(input (read-from-minibuffer
(cond ((string-match-p ":[ \t]*\\'" prompt)
prompt)
- (default
+ ((and default (> (length default) 0))
(format "%s (default %s): " prompt
(query-replace-descr default)))
(t
nil nil nil (or history 'regexp-history) suggestions t)))
(if (equal input "")
;; Return the default value when the user enters empty input.
- (or default input)
+ (prog1 (or default input)
+ (when default
+ (add-to-history (or history 'regexp-history) default)))
;; Otherwise, add non-empty input to the history and return input.
(prog1 input
(add-to-history (or history 'regexp-history) input)))))
(keep-lines-read-args "How many matches for regexp"))
(save-excursion
(if rstart
- (progn
- (goto-char (min rstart rend))
- (setq rend (max rstart rend)))
+ (if rend
+ (progn
+ (goto-char (min rstart rend))
+ (setq rend (max rstart rend)))
+ (goto-char rstart)
+ (setq rend (point-max)))
(if (and interactive transient-mark-mode mark-active)
(setq rstart (region-beginning)
rend (region-end))
:group 'matching
:version "22.1")
-(defvar occur-read-regexp-defaults-function
- 'occur-read-regexp-defaults
- "Function that provides default regexp(s) for occur commands.
-This function should take no arguments and return one of nil, a
-regexp or a list of regexps for use with occur commands -
-`occur', `multi-occur' and `multi-occur-in-matching-buffers'.
-The return value of this function is used as DEFAULTS param of
-`read-regexp' while executing the occur command. This function
-is called only during interactive use.
-
-For example, to check for occurrence of symbol at point use
-
- \(setq occur-read-regexp-defaults-function
- 'find-tag-default-as-regexp\).")
-
-(defun occur-read-regexp-defaults ()
- "Return the latest regexp from `regexp-history'.
-See `occur-read-regexp-defaults-function' for details."
- (car regexp-history))
-
(defun occur-read-primary-args ()
(let* ((perform-collect (consp current-prefix-arg))
(regexp (read-regexp (if perform-collect
"Collect strings matching regexp"
"List lines matching regexp")
- (funcall occur-read-regexp-defaults-function))))
+ 'regexp-history-last)))
(list regexp
(if perform-collect
;; Perform collect operation
(defun occur-engine (regexp buffers out-buf nlines case-fold
title-face prefix-face match-face keep-props)
(with-current-buffer out-buf
- (let ((globalcount 0)
+ (let ((global-lines 0) ;; total count of matching lines
+ (global-matches 0) ;; total count of matches
(coding nil)
(case-fold-search case-fold))
;; Map over all the buffers
(dolist (buf buffers)
(when (buffer-live-p buf)
- (let ((matches 0) ;; count of matched lines
- (lines 1) ;; line count
- (prev-after-lines nil) ;; context lines of prev match
- (prev-lines nil) ;; line number of prev match endpt
+ (let ((lines 0) ;; count of matching lines
+ (matches 0) ;; count of matches
+ (curr-line 1) ;; line count
+ (prev-line nil) ;; line number of prev match endpt
+ (prev-after-lines nil) ;; context lines of prev match
(matchbeg 0)
(origpt nil)
(begpt nil)
(while (not (eobp))
(setq origpt (point))
(when (setq endpt (re-search-forward regexp nil t))
- (setq matches (1+ matches)) ;; increment match count
+ (setq lines (1+ lines)) ;; increment matching lines count
(setq matchbeg (match-beginning 0))
;; Get beginning of first match line and end of the last.
(save-excursion
(goto-char endpt)
(setq endpt (line-end-position)))
;; Sum line numbers up to the first match line.
- (setq lines (+ lines (count-lines origpt begpt)))
+ (setq curr-line (+ curr-line (count-lines origpt begpt)))
(setq marker (make-marker))
(set-marker marker matchbeg)
(setq curstring (occur-engine-line begpt endpt keep-props))
(start 0))
(while (and (< start len)
(string-match regexp curstring start))
+ (setq matches (1+ matches))
(add-text-properties
(match-beginning 0) (match-end 0)
- (append
- `(occur-match t)
- (when match-face
- ;; Use `face' rather than `font-lock-face' here
- ;; so as to override faces copied from the buffer.
- `(face ,match-face)))
- curstring)
- (setq start (match-end 0))))
+ '(occur-match t) curstring)
+ (when match-face
+ ;; Add `match-face' to faces copied from the buffer.
+ (add-face-text-property
+ (match-beginning 0) (match-end 0)
+ match-face nil curstring))
+ ;; Avoid infloop (Bug#7593).
+ (let ((end (match-end 0)))
+ (setq start (if (= start end) (1+ start) end)))))
;; Generate the string to insert for this match
(let* ((match-prefix
;; Using 7 digits aligns tabs properly.
- (apply #'propertize (format "%7d:" lines)
+ (apply #'propertize (format "%7d:" curr-line)
(append
(when prefix-face
`(font-lock-face ,prefix-face))
;; The complex multi-line display style.
(setq ret (occur-context-lines
out-line nlines keep-props begpt endpt
- lines prev-lines prev-after-lines
+ curr-line prev-line prev-after-lines
prefix-face))
;; Set first elem of the returned list to `data',
;; and the second elem to `prev-after-lines'.
(if endpt
(progn
;; Sum line numbers between first and last match lines.
- (setq lines (+ lines (count-lines begpt endpt)
- ;; Add 1 for empty last match line since
- ;; count-lines returns 1 line less.
- (if (and (bolp) (eolp)) 1 0)))
+ (setq curr-line (+ curr-line (count-lines begpt endpt)
+ ;; Add 1 for empty last match line since
+ ;; count-lines returns 1 line less.
+ (if (and (bolp) (eolp)) 1 0)))
;; On to the next match...
(forward-line 1))
(goto-char (point-max)))
- (setq prev-lines (1- lines)))
+ (setq prev-line (1- curr-line)))
;; Flush remaining context after-lines.
(when prev-after-lines
(with-current-buffer out-buf
(insert (apply #'concat (occur-engine-add-prefix
prev-after-lines prefix-face)))))))
- (when (not (zerop matches)) ;; is the count zero?
- (setq globalcount (+ globalcount matches))
+ (when (not (zerop lines)) ;; is the count zero?
+ (setq global-lines (+ global-lines lines)
+ global-matches (+ global-matches matches))
(with-current-buffer out-buf
(goto-char headerpt)
(let ((beg (point))
end)
(insert (propertize
- (format "%d match%s%s in buffer: %s\n"
+ (format "%d match%s%s%s in buffer: %s\n"
matches (if (= matches 1) "" "es")
+ ;; Don't display the same number of lines
+ ;; and matches in case of 1 match per line.
+ (if (= lines matches)
+ "" (format " in %d line%s"
+ lines (if (= lines 1) "" "s")))
;; Don't display regexp for multi-buffer.
(if (> (length buffers) 1)
"" (format " for \"%s\""
(buffer-name buf))
'read-only t))
(setq end (point))
- (add-text-properties beg end
- (append
- (when title-face
- `(font-lock-face ,title-face))
- `(occur-title ,buf))))
+ (add-text-properties beg end `(occur-title ,buf))
+ (when title-face
+ (add-face-text-property beg end title-face)))
(goto-char (point-min)))))))
;; Display total match count and regexp for multi-buffer.
- (when (and (not (zerop globalcount)) (> (length buffers) 1))
+ (when (and (not (zerop global-lines)) (> (length buffers) 1))
(goto-char (point-min))
(let ((beg (point))
end)
- (insert (format "%d match%s total for \"%s\":\n"
- globalcount (if (= globalcount 1) "" "es")
+ (insert (format "%d match%s%s total for \"%s\":\n"
+ global-matches (if (= global-matches 1) "" "es")
+ ;; Don't display the same number of lines
+ ;; and matches in case of 1 match per line.
+ (if (= global-lines global-matches)
+ "" (format " in %d line%s"
+ global-lines (if (= global-lines 1) "" "s")))
(query-replace-descr regexp)))
(setq end (point))
- (add-text-properties beg end (when title-face
- `(font-lock-face ,title-face))))
+ (when title-face
+ (add-face-text-property beg end title-face)))
(goto-char (point-min)))
(if coding
;; CODING is buffer-file-coding-system of the first buffer
;; buffer.
(set-buffer-file-coding-system coding))
;; Return the number of matches
- globalcount)))
+ global-matches)))
(defun occur-engine-line (beg end &optional keep-props)
(if (and keep-props (if (boundp 'jit-lock-mode) jit-lock-mode)
;; Generate context display for occur.
;; OUT-LINE is the line where the match is.
;; NLINES and KEEP-PROPS are args to occur-engine.
-;; LINES is line count of the current match,
-;; PREV-LINES is line count of the previous match,
+;; CURR-LINE is line count of the current match,
+;; PREV-LINE is line count of the previous match,
;; PREV-AFTER-LINES is a list of after-context lines of the previous match.
;; Generate a list of lines, add prefixes to all but OUT-LINE,
;; then concatenate them all together.
(defun occur-context-lines (out-line nlines keep-props begpt endpt
- lines prev-lines prev-after-lines
+ curr-line prev-line prev-after-lines
&optional prefix-face)
;; Find after- and before-context lines of the current match.
(let ((before-lines
(when prev-after-lines
;; Don't overlap prev after-lines with current before-lines.
- (if (>= (+ prev-lines (length prev-after-lines))
- (- lines (length before-lines)))
+ (if (>= (+ prev-line (length prev-after-lines))
+ (- curr-line (length before-lines)))
(setq prev-after-lines
(butlast prev-after-lines
(- (length prev-after-lines)
- (- lines prev-lines (length before-lines) 1))))
+ (- curr-line prev-line (length before-lines) 1))))
;; Separate non-overlapping context lines with a dashed line.
(setq separator "-------\n")))
- (when prev-lines
+ (when prev-line
;; Don't overlap current before-lines with previous match line.
- (if (<= (- lines (length before-lines))
- prev-lines)
+ (if (<= (- curr-line (length before-lines))
+ prev-line)
(setq before-lines
(nthcdr (- (length before-lines)
- (- lines prev-lines 1))
+ (- curr-line prev-line 1))
before-lines))
;; Separate non-overlapping before-context lines.
(unless (> nlines 0)
(defun replace-eval-replacement (expression count)
(let* ((replace-count count)
- (replacement (eval expression)))
+ err
+ (replacement
+ (condition-case err
+ (eval expression)
+ (error
+ (error "Error evaluating replacement expression: %S" err)))))
(if (stringp replacement)
replacement
(prin1-to-string replacement t))))
new)))
(match-data integers reuse t)))
-(defun replace-match-maybe-edit (newtext fixedcase literal noedit match-data)
+(defun replace-match-maybe-edit (newtext fixedcase literal noedit match-data backward)
"Make a replacement with `replace-match', editing `\\?'.
-NEWTEXT, FIXEDCASE, LITERAL are just passed on. If NOEDIT is true, no
-check for `\\?' is made to save time. MATCH-DATA is used for the
-replacement. In case editing is done, it is changed to use markers.
+FIXEDCASE, LITERAL are passed to `replace-match' (which see).
+After possibly editing it (if `\\?' is present), NEWTEXT is also
+passed to `replace-match'. If NOEDIT is true, no check for `\\?'
+is made (to save time). MATCH-DATA is used for the replacement.
+In case editing is done, it is changed to use markers.
The return value is non-nil if there has been no `\\?' or NOEDIT was
passed in. If LITERAL is set, no checking is done, anyway."
noedit nil)))
(set-match-data match-data)
(replace-match newtext fixedcase literal)
+ ;; `replace-match' leaves point at the end of the replacement text,
+ ;; so move point to the beginning when replacing backward.
+ (when backward (goto-char (nth 0 match-data)))
noedit)
(defvar replace-search-function nil
`re-search-forward'.")
(defun replace-search (search-string limit regexp-flag delimited-flag
- case-fold-search)
- "Search for the next occurence of SEARCH-STRING to replace."
+ case-fold-search backward)
+ "Search for the next occurrence of SEARCH-STRING to replace."
;; Let-bind global isearch-* variables to values used
;; to search the next replacement. These let-bindings
;; should be effective both at the time of calling
(isearch-case-fold-search case-fold-search)
(isearch-adjusted nil)
(isearch-nonincremental t) ; don't use lax word mode
- (isearch-forward t)
+ (isearch-forward (not backward))
(search-function
(or (if regexp-flag
replace-re-search-function
(defun replace-highlight (match-beg match-end range-beg range-end
search-string regexp-flag delimited-flag
- case-fold-search)
+ case-fold-search backward)
(if query-replace-highlight
(if replace-overlay
(move-overlay replace-overlay match-beg match-end (current-buffer))
(isearch-regexp-lax-whitespace
replace-regexp-lax-whitespace)
(isearch-case-fold-search case-fold-search)
- (isearch-forward t)
+ (isearch-forward (not backward))
(isearch-other-end match-beg)
(isearch-error nil))
(isearch-lazy-highlight-new-loop range-beg range-end))))
(defun perform-replace (from-string replacements
query-flag regexp-flag delimited-flag
- &optional repeat-count map start end)
+ &optional repeat-count map start end backward)
"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:
(keep-going t)
(stack nil)
(replace-count 0)
+ (skip-read-only-count 0)
+ (skip-filtered-count 0)
+ (skip-invisible-count 0)
(nonempty-match nil)
(multi-buffer nil)
(recenter-last-op nil) ; Start cycling order with initial position.
minibuffer-prompt-properties))))
;; If region is active, in Transient Mark mode, operate on region.
- (when start
- (setq limit (copy-marker (max start end)))
- (goto-char (min start end))
- (deactivate-mark))
+ (if backward
+ (when end
+ (setq limit (copy-marker (min start end)))
+ (goto-char (max start end))
+ (deactivate-mark))
+ (when start
+ (setq limit (copy-marker (max start end)))
+ (goto-char (min start end))
+ (deactivate-mark)))
;; If last typed key in previous call of multi-buffer perform-replace
;; was `automatic-all', don't ask more questions in next files
(unwind-protect
;; Loop finding occurrences that perhaps should be replaced.
(while (and keep-going
- (not (or (eobp) (and limit (>= (point) limit))))
+ (if backward
+ (not (or (bobp) (and limit (<= (point) limit))))
+ (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.
(setq real-match-data
(cond ((consp match-again)
- (goto-char (nth 1 match-again))
+ (goto-char (if backward
+ (nth 0 match-again)
+ (nth 1 match-again)))
(replace-match-data
t real-match-data match-again))
;; MATCH-AGAIN non-nil means accept an
(and
(replace-search search-string limit
regexp-flag delimited-flag
- case-fold-search)
+ case-fold-search backward)
;; For speed, use only integers and
;; reuse the list used last time.
(replace-match-data t real-match-data)))
- ((and (< (1+ (point)) (point-max))
+ ((and (if backward
+ (> (1- (point)) (point-min))
+ (< (1+ (point)) (point-max)))
(or (null limit)
- (< (1+ (point)) limit)))
+ (if backward
+ (> (1- (point)) limit)
+ (< (1+ (point)) limit))))
;; If not accepting adjacent matches,
;; move one char to the right before
;; searching again. Undo the motion
;; if the search fails.
(let ((opoint (point)))
- (forward-char 1)
+ (forward-char (if backward -1 1))
(if (replace-search search-string limit
regexp-flag delimited-flag
- case-fold-search)
+ case-fold-search backward)
(replace-match-data
t real-match-data)
(goto-char opoint)
(setq match-again
(and nonempty-match
(or (not regexp-flag)
- (and (looking-at search-string)
+ (and (if backward
+ (looking-back search-string)
+ (looking-at search-string))
(let ((match (match-data)))
(and (/= (nth 0 match) (nth 1 match))
match))))))
- ;; Optionally ignore matches that have a read-only property.
- (when (and (or (not query-replace-skip-read-only)
- (not (text-property-not-all
- (nth 0 real-match-data) (nth 1 real-match-data)
- 'read-only nil)))
- ;; Optionally filter out matches.
- (run-hook-with-args-until-failure
- 'isearch-filter-predicates
- (nth 0 real-match-data) (nth 1 real-match-data))
- ;; Optionally ignore invisible matches.
- (or (eq search-invisible t)
- (not (isearch-range-invisible
- (nth 0 real-match-data) (nth 1 real-match-data)))))
-
+ (cond
+ ;; Optionally ignore matches that have a read-only property.
+ ((not (or (not query-replace-skip-read-only)
+ (not (text-property-not-all
+ (nth 0 real-match-data) (nth 1 real-match-data)
+ 'read-only nil))))
+ (setq skip-read-only-count (1+ skip-read-only-count)))
+ ;; Optionally filter out matches.
+ ((not (funcall isearch-filter-predicate
+ (nth 0 real-match-data) (nth 1 real-match-data)))
+ (setq skip-filtered-count (1+ skip-filtered-count)))
+ ;; Optionally ignore invisible matches.
+ ((not (or (eq search-invisible t)
+ ;; Don't open overlays for automatic replacements.
+ (and (not query-flag) search-invisible)
+ ;; Open hidden overlays for interactive replacements.
+ (not (isearch-range-invisible
+ (nth 0 real-match-data) (nth 1 real-match-data)))))
+ (setq skip-invisible-count (1+ skip-invisible-count)))
+ (t
;; Calculate the replacement string, if necessary.
(when replacements
(set-match-data real-match-data)
(replace-highlight
(nth 0 real-match-data) (nth 1 real-match-data)
start end search-string
- regexp-flag delimited-flag case-fold-search))
+ regexp-flag delimited-flag case-fold-search backward))
(setq noedit
(replace-match-maybe-edit
next-replacement nocasify literal
- noedit real-match-data)
+ noedit real-match-data backward)
replace-count (1+ replace-count)))
(undo-boundary)
(let (done replaced key def)
(replace-highlight
(match-beginning 0) (match-end 0)
start end search-string
- regexp-flag delimited-flag case-fold-search)
+ regexp-flag delimited-flag case-fold-search backward)
;; Bind message-log-max so we don't fill up the message log
;; with a bunch of identical messages.
(let ((message-log-max nil)
(with-output-to-temp-buffer "*Help*"
(princ
(concat "Query replacing "
- (if delimited-flag "word " "")
+ (if delimited-flag
+ (or (and (symbolp delimited-flag)
+ (get delimited-flag 'isearch-message-prefix))
+ "word ") "")
(if regexp-flag "regexp " "")
+ (if backward "backward " "")
from-string " with "
next-replacement ".\n\n"
(substitute-command-keys
(setq noedit
(replace-match-maybe-edit
next-replacement nocasify literal
- noedit real-match-data)
+ noedit real-match-data backward)
replace-count (1+ replace-count)))
(setq done t replaced t))
((eq def 'act-and-exit)
(setq noedit
(replace-match-maybe-edit
next-replacement nocasify literal
- noedit real-match-data)
+ noedit real-match-data backward)
replace-count (1+ replace-count)))
(setq keep-going nil)
(setq done t replaced t))
(setq noedit
(replace-match-maybe-edit
next-replacement nocasify literal
- noedit real-match-data)
+ noedit real-match-data backward)
replace-count (1+ replace-count)
real-match-data (replace-match-data
t real-match-data)
(setq noedit
(replace-match-maybe-edit
next-replacement nocasify literal
- noedit real-match-data)
+ noedit real-match-data backward)
replace-count (1+ replace-count)))
(setq done t query-flag nil replaced t)
(if (eq def 'automatic-all) (setq multi-buffer t)))
(setq noedit
(replace-match-maybe-edit
next-replacement nocasify literal noedit
- real-match-data)
+ real-match-data backward)
replaced t))
(setq done t))
(match-end 0)
(current-buffer))
(match-data t)))
- stack)))))
+ stack))))))
(replace-dehighlight))
(or unread-command-events
- (message "Replaced %d occurrence%s"
+ (message "Replaced %d occurrence%s%s"
replace-count
- (if (= replace-count 1) "" "s")))
+ (if (= replace-count 1) "" "s")
+ (if (> (+ skip-read-only-count
+ skip-filtered-count
+ skip-invisible-count) 0)
+ (format " (skipped %s)"
+ (mapconcat
+ 'identity
+ (delq nil (list
+ (if (> skip-read-only-count 0)
+ (format "%s read-only"
+ skip-read-only-count))
+ (if (> skip-invisible-count 0)
+ (format "%s invisible"
+ skip-invisible-count))
+ (if (> skip-filtered-count 0)
+ (format "%s filtered out"
+ skip-filtered-count))))
+ ", "))
+ "")))
(or (and keep-going stack) multi-buffer)))
;;; replace.el ends here
HCoop / bpt / emacs.git / blobdiff