;;; replace.el --- replace commands for Emacs.
-;; Copyright (C) 1985, 1986, 1987, 1992, 1994 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1986, 1987, 1992, 1994, 1996 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Commentary:
The lines are shown in a buffer named `*Occur*'.
It serves as a menu to find any of the occurrences in this buffer.
\\[describe-mode] in that buffer will explain how."
- (interactive (list (let* ((default (car regexp-history))
- (input
- (read-from-minibuffer
- (if default
- (format "List lines matching regexp (default `%s'): " default)
- "List lines matching regexp: ")
- nil nil nil
- 'regexp-history)))
- (if (> (length input) 0) input
- (setcar regexp-history default)))
- current-prefix-arg))
- (setq nlines (if nlines (prefix-numeric-value nlines)
- list-matching-lines-default-context-lines))
- (let ((first t)
+ (interactive
+ (list (let* ((default (car regexp-history))
+ (input
+ (read-from-minibuffer
+ (if default
+ (format "List lines matching regexp (default `%s'): "
+ default)
+ "List lines matching regexp: ")
+ nil nil nil 'regexp-history)))
+ (if (string-equal input "")
+ default
+ (set-text-properties 0 (length input) nil input)
+ input))
+ current-prefix-arg))
+ (let ((nlines (if nlines
+ (prefix-numeric-value nlines)
+ list-matching-lines-default-context-lines))
+ (first t)
(buffer (current-buffer))
(dir default-directory)
(linenum 1)
;;; (beginning-of-line)
;;; (setq linenum (1+ (count-lines (point-min) (point))))
;;; (setq prevpos (point)))
- (with-output-to-temp-buffer "*Occur*"
- (save-excursion
- (set-buffer standard-output)
- (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-pos-list ()))
- (if (eq buffer standard-output)
- (goto-char (point-max)))
- (save-excursion
- (beginning-of-buffer)
- ;; Find next match, but give up if prev match was at end of buffer.
- (while (and (not (= prevpos (point-max)))
- (re-search-forward regexp nil t))
- (goto-char (match-beginning 0))
- (beginning-of-line)
- (save-match-data
- (setq linenum (+ linenum (count-lines prevpos (point)))))
- (setq prevpos (point))
- (goto-char (match-end 0))
- (let* ((start (save-excursion
- (goto-char (match-beginning 0))
- (forward-line (if (< nlines 0) nlines (- nlines)))
- (point)))
- (end (save-excursion
- (goto-char (match-end 0))
- (if (> nlines 0)
- (forward-line (1+ nlines))
- (forward-line 1))
- (point)))
- (tag (format "%5d" linenum))
- (empty (make-string (length tag) ?\ ))
- tem)
- (save-excursion
- (setq tem (make-marker))
- (set-marker tem (point))
- (set-buffer standard-output)
- (setq occur-pos-list (cons tem occur-pos-list))
- (or first (zerop nlines)
- (insert "--------\n"))
- (setq first nil)
- (insert-buffer-substring buffer start end)
- (backward-char (- end start))
- (setq tem nlines)
- (while (> tem 0)
- (insert empty ?:)
- (forward-line 1)
- (setq tem (1- tem)))
- (let ((this-linenum linenum))
- (set-marker final-context-start
- (+ (point) (- (match-end 0) (match-beginning 0))))
- (while (< (point) final-context-start)
- (if (null tag)
- (setq tag (format "%5d" this-linenum)))
- (insert tag ?:)
- (put-text-property (save-excursion
- (beginning-of-line)
- (point))
- (save-excursion
- (end-of-line)
- (point))
- 'mouse-face 'highlight)
- (setq tag nil)
- (forward-line 1)
- (setq this-linenum (1+ this-linenum))))
- (while (< tem nlines)
- (insert empty ?:)
- (forward-line 1)
- (setq tem (1+ tem))))
- (forward-line 1)))
- (set-buffer standard-output)
- ;; Put positions in increasing order to go with buffer.
- (setq occur-pos-list (nreverse occur-pos-list))
- (goto-char (point-min))
- (if (= (length occur-pos-list) 1)
- (insert "1 line")
- (insert (format "%d lines" (length occur-pos-list))))
- (if (interactive-p)
- (message "%d matching lines." (length occur-pos-list)))))))
+ (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-pos-list ()))
+ (if (eq buffer standard-output)
+ (goto-char (point-max)))
+ (save-excursion
+ ;; Find next match, but give up if prev match was at end of buffer.
+ (while (and (not (= prevpos (point-max)))
+ (re-search-forward regexp nil t))
+ (goto-char (match-beginning 0))
+ (beginning-of-line)
+ (save-match-data
+ (setq linenum (+ linenum (count-lines prevpos (point)))))
+ (setq prevpos (point))
+ (goto-char (match-end 0))
+ (let* ((start (save-excursion
+ (goto-char (match-beginning 0))
+ (forward-line (if (< nlines 0) nlines (- nlines)))
+ (point)))
+ (end (save-excursion
+ (goto-char (match-end 0))
+ (if (> nlines 0)
+ (forward-line (1+ nlines))
+ (forward-line 1))
+ (point)))
+ (tag (format "%5d" linenum))
+ (empty (make-string (length tag) ?\ ))
+ tem)
+ (save-excursion
+ (setq tem (make-marker))
+ (set-marker tem (point))
+ (set-buffer standard-output)
+ (setq occur-pos-list (cons tem occur-pos-list))
+ (or first (zerop nlines)
+ (insert "--------\n"))
+ (setq first nil)
+ (insert-buffer-substring buffer start end)
+ (set-marker final-context-start
+ (- (point) (- end (match-end 0))))
+ (backward-char (- end start))
+ (setq tem nlines)
+ (while (> tem 0)
+ (insert empty ?:)
+ (forward-line 1)
+ (setq tem (1- tem)))
+ (let ((this-linenum linenum))
+ (while (< (point) final-context-start)
+ (if (null tag)
+ (setq tag (format "%5d" this-linenum)))
+ (insert tag ?:)
+ (put-text-property (save-excursion
+ (beginning-of-line)
+ (point))
+ (save-excursion
+ (end-of-line)
+ (point))
+ 'mouse-face 'highlight)
+ (forward-line 1)
+ (setq tag nil)
+ (setq this-linenum (1+ this-linenum)))
+ (while (<= (point) final-context-start)
+ (insert empty ?:)
+ (forward-line 1)
+ (setq this-linenum (1+ this-linenum))))
+ (while (< tem nlines)
+ (insert empty ?:)
+ (forward-line 1)
+ (setq tem (1+ tem)))
+ (goto-char (point-max)))
+ (forward-line 1)))
+ (set-buffer standard-output)
+ ;; Put positions in increasing order to go with buffer.
+ (setq occur-pos-list (nreverse occur-pos-list))
+ (goto-char (point-min))
+ (let ((message-string
+ (if (= (length occur-pos-list) 1)
+ "1 line"
+ (format "%d lines" (length occur-pos-list)))))
+ (insert message-string)
+ (if (interactive-p)
+ (message "%s matched" message-string)))))))))
\f
;; It would be nice to use \\[...], but there is no reasonable way
;; to make that display both SPC and Y.
(define-key query-replace-map "!" 'automatic)
(define-key query-replace-map "^" 'backup)
(define-key query-replace-map "\C-h" 'help)
+(define-key query-replace-map [f1] 'help)
+(define-key query-replace-map [help] 'help)
(define-key query-replace-map "?" 'help)
(define-key query-replace-map "\C-g" 'quit)
(define-key query-replace-map "\C-]" 'quit)
HCoop / bpt / emacs.git / blobdiff