Commit b6ac30ab authored by Dmitry Gutov's avatar Dmitry Gutov

Add new xref-query-replace command

* lisp/progmodes/xref.el (xref--match-buffer-bounds): New
function, extracted from xref-pulse-momentarily.
(xref-query-replace): New command.
(xref--query-replace-1): New helper function.
(xref--xref-buffer-mode-map): Add `r' binding.
parent 4051fb20
......@@ -342,18 +342,22 @@ elements is negated."
(pcase-let ((`(,beg . ,end)
(save-excursion
(or
(let ((bounds (xref-match-bounds xref--current-item)))
(when bounds
(cons (progn (move-to-column (car bounds))
(point))
(progn (move-to-column (cdr bounds))
(point)))))
(xref--match-buffer-bounds xref--current-item)
(back-to-indentation)
(if (eolp)
(cons (line-beginning-position) (1+ (point)))
(cons (point) (line-end-position)))))))
(pulse-momentary-highlight-region beg end 'next-error)))
(defun xref--match-buffer-bounds (item)
(save-excursion
(let ((bounds (xref-match-bounds item)))
(when bounds
(cons (progn (move-to-column (car bounds))
(point))
(progn (move-to-column (cdr bounds))
(point)))))))
;; etags.el needs this
(defun xref-clear-marker-stack ()
"Discard all markers from the marker stack."
......@@ -483,11 +487,72 @@ Used for temporary buffers.")
(xref-quit)
(xref--pop-to-location xref window)))
(defun xref-query-replace (from to)
"Perform interactive replacement in all current matches."
(interactive
(list (read-regexp "Query replace regexp in matches" ".*")
(read-regexp "Replace with: ")))
(let (pairs item)
(unwind-protect
(progn
(save-excursion
(goto-char (point-min))
;; TODO: Check that none of the matches are out of date;
;; offer to re-scan otherwise. Note that saving the last
;; modification tick won't work, as long as not all of the
;; buffers are kept open.
(while (setq item (xref--search-property 'xref-item))
(when (xref-match-bounds item)
(save-excursion
(xref--goto-location (xref-item-location item))
(let ((bounds (xref--match-buffer-bounds item))
(beg (make-marker))
(end (make-marker)))
(move-marker beg (car bounds))
(move-marker end (cdr bounds))
(push (cons beg end) pairs)))))
(setq pairs (nreverse pairs)))
(unless pairs (user-error "No suitable matches here"))
(xref--query-replace-1 from to pairs))
(dolist (pair pairs)
(move-marker (car pair) nil)
(move-marker (cdr pair) nil)))))
(defun xref--query-replace-1 (from to pairs)
(let* ((query-replace-lazy-highlight nil)
current-pair current-buf
;; Counteract the "do the next match now" hack in
;; `perform-replace'. And still, it'll report that those
;; matches were "filtered out" at the end.
(isearch-filter-predicate
(lambda (beg end)
(and current-pair
(eq (current-buffer) current-buf)
(>= beg (car current-pair))
(<= end (cdr current-pair)))))
(replace-re-search-function
(lambda (from &optional _bound noerror)
(let (found)
(while (and (not found) pairs)
(setq current-pair (pop pairs)
current-buf (marker-buffer (car current-pair)))
(pop-to-buffer current-buf)
(goto-char (car current-pair))
(when (re-search-forward from (cdr current-pair) noerror)
(setq found t)))
found))))
;; FIXME: Despite this being a multi-buffer replacement, `N'
;; doesn't work, because we're not using
;; `multi-query-replace-map', and it would expect the below
;; function to be called once per buffer.
(perform-replace from to t t nil)))
(defvar xref--xref-buffer-mode-map
(let ((map (make-sparse-keymap)))
(define-key map [remap quit-window] #'xref-quit)
(define-key map (kbd "n") #'xref-next-line)
(define-key map (kbd "p") #'xref-prev-line)
(define-key map (kbd "r") #'xref-query-replace)
(define-key map (kbd "RET") #'xref-goto-xref)
(define-key map (kbd "C-o") #'xref-show-location-at-point)
;; suggested by Johan Claesson "to further reduce finger movement":
......@@ -900,6 +965,7 @@ IGNORES is a list of glob patterns."
(goto-char (point-min))
(forward-line (1- line))
(syntax-propertize (line-end-position))
;; TODO: Handle multiple matches per line.
(when (re-search-forward regexp (line-end-position) t)
(goto-char (match-beginning 0))
(let ((loc (xref-make-file-location file line
......
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