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c88ab9ce ER |
1 | ;;; replace.el --- replace commands for Emacs. |
2 | ||
aeab5be0 | 3 | ;; Copyright (C) 1985, 86, 87, 92, 94, 96, 1997 Free Software Foundation, Inc. |
3a801d0c | 4 | |
698e1804 RS |
5 | ;; This file is part of GNU Emacs. |
6 | ||
7 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
8 | ;; it under the terms of the GNU General Public License as published by | |
e5d77022 | 9 | ;; the Free Software Foundation; either version 2, or (at your option) |
698e1804 RS |
10 | ;; any later version. |
11 | ||
12 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
13 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ;; GNU General Public License for more details. | |
16 | ||
17 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
18 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
19 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | ;; Boston, MA 02111-1307, USA. | |
698e1804 | 21 | |
d9ecc911 ER |
22 | ;;; Commentary: |
23 | ||
24 | ;; This package supplies the string and regular-expression replace functions | |
25 | ;; documented in the Emacs user's manual. | |
26 | ||
4f4b8eff | 27 | ;;; Code: |
698e1804 | 28 | |
9d325ebf RS |
29 | (defcustom case-replace t |
30 | "*Non-nil means query-replace should preserve case in replacements." | |
31 | :type 'boolean | |
32 | :group 'matching) | |
77176e73 | 33 | |
770970cb RS |
34 | (defvar query-replace-history nil) |
35 | ||
151270f3 RS |
36 | (defvar query-replace-interactive nil |
37 | "Non-nil means `query-replace' uses the last search string. | |
38 | That becomes the \"string to replace\".") | |
39 | ||
40 | (defun query-replace-read-args (string regexp-flag) | |
770970cb | 41 | (let (from to) |
151270f3 RS |
42 | (if query-replace-interactive |
43 | (setq from (car (if regexp-flag regexp-search-ring search-ring))) | |
44 | (setq from (read-from-minibuffer (format "%s: " string) | |
45 | nil nil nil | |
fce31d51 | 46 | 'query-replace-history nil t))) |
770970cb RS |
47 | (setq to (read-from-minibuffer (format "%s %s with: " string from) |
48 | nil nil nil | |
fce31d51 | 49 | 'query-replace-history nil t)) |
770970cb RS |
50 | (list from to current-prefix-arg))) |
51 | ||
da44e784 RM |
52 | (defun query-replace (from-string to-string &optional arg) |
53 | "Replace some occurrences of FROM-STRING with TO-STRING. | |
54 | As each match is found, the user must type a character saying | |
55 | what to do with it. For directions, type \\[help-command] at that time. | |
56 | ||
7ef5c431 KH |
57 | In Transient Mark mode, if the mark is active, operate on the contents |
58 | of the region. Otherwise, operate from point to the end of the buffer. | |
59 | ||
151270f3 RS |
60 | If `query-replace-interactive' is non-nil, the last incremental search |
61 | string is used as FROM-STRING--you don't have to specify it with the | |
62 | minibuffer. | |
63 | ||
118a01c9 | 64 | Preserves case in each replacement if `case-replace' and `case-fold-search' |
da44e784 | 65 | are non-nil and FROM-STRING has no uppercase letters. |
9b0bf2b6 RS |
66 | \(Preserving case means that if the string matched is all caps, or capitalized, |
67 | then its replacement is upcased or capitalized.) | |
68 | ||
118a01c9 | 69 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
81bdc14d RS |
70 | only matches surrounded by word boundaries. |
71 | ||
72 | To customize possible responses, change the \"bindings\" in `query-replace-map'." | |
151270f3 | 73 | (interactive (query-replace-read-args "Query replace" nil)) |
4d33492a | 74 | (perform-replace from-string to-string t nil arg)) |
7ef5c431 | 75 | |
73fa8346 | 76 | (define-key esc-map "%" 'query-replace) |
da44e784 | 77 | |
da44e784 RM |
78 | (defun query-replace-regexp (regexp to-string &optional arg) |
79 | "Replace some things after point matching REGEXP with TO-STRING. | |
80 | As each match is found, the user must type a character saying | |
81 | what to do with it. For directions, type \\[help-command] at that time. | |
82 | ||
7ef5c431 KH |
83 | In Transient Mark mode, if the mark is active, operate on the contents |
84 | of the region. Otherwise, operate from point to the end of the buffer. | |
85 | ||
151270f3 RS |
86 | If `query-replace-interactive' is non-nil, the last incremental search |
87 | regexp is used as REGEXP--you don't have to specify it with the | |
88 | minibuffer. | |
89 | ||
118a01c9 | 90 | Preserves case in each replacement if `case-replace' and `case-fold-search' |
da44e784 | 91 | are non-nil and REGEXP has no uppercase letters. |
118a01c9 | 92 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 93 | only matches surrounded by word boundaries. |
118a01c9 RS |
94 | In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, |
95 | and `\\=\\N' (where N is a digit) stands for | |
96 | whatever what matched the Nth `\\(...\\)' in REGEXP." | |
151270f3 | 97 | (interactive (query-replace-read-args "Query replace regexp" t)) |
4d33492a | 98 | (perform-replace regexp to-string t t arg)) |
da44e784 | 99 | |
da44e784 RM |
100 | (defun map-query-replace-regexp (regexp to-strings &optional arg) |
101 | "Replace some matches for REGEXP with various strings, in rotation. | |
102 | The second argument TO-STRINGS contains the replacement strings, separated | |
103 | by spaces. This command works like `query-replace-regexp' except | |
104 | that each successive replacement uses the next successive replacement string, | |
105 | wrapping around from the last such string to the first. | |
106 | ||
7ef5c431 KH |
107 | In Transient Mark mode, if the mark is active, operate on the contents |
108 | of the region. Otherwise, operate from point to the end of the buffer. | |
109 | ||
da44e784 RM |
110 | Non-interactively, TO-STRINGS may be a list of replacement strings. |
111 | ||
151270f3 RS |
112 | If `query-replace-interactive' is non-nil, the last incremental search |
113 | regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
114 | ||
da44e784 RM |
115 | A prefix argument N says to use each replacement string N times |
116 | before rotating to the next." | |
770970cb RS |
117 | (interactive |
118 | (let (from to) | |
151270f3 RS |
119 | (setq from (if query-replace-interactive |
120 | (car regexp-search-ring) | |
121 | (read-from-minibuffer "Map query replace (regexp): " | |
122 | nil nil nil | |
fce31d51 | 123 | 'query-replace-history nil t))) |
770970cb RS |
124 | (setq to (read-from-minibuffer |
125 | (format "Query replace %s with (space-separated strings): " | |
126 | from) | |
127 | nil nil nil | |
fce31d51 | 128 | 'query-replace-history nil t)) |
770970cb | 129 | (list from to current-prefix-arg))) |
da44e784 RM |
130 | (let (replacements) |
131 | (if (listp to-strings) | |
132 | (setq replacements to-strings) | |
133 | (while (/= (length to-strings) 0) | |
134 | (if (string-match " " to-strings) | |
135 | (setq replacements | |
136 | (append replacements | |
137 | (list (substring to-strings 0 | |
138 | (string-match " " to-strings)))) | |
139 | to-strings (substring to-strings | |
140 | (1+ (string-match " " to-strings)))) | |
141 | (setq replacements (append replacements (list to-strings)) | |
142 | to-strings "")))) | |
4d33492a | 143 | (perform-replace regexp replacements t t nil arg))) |
da44e784 | 144 | |
da44e784 RM |
145 | (defun replace-string (from-string to-string &optional delimited) |
146 | "Replace occurrences of FROM-STRING with TO-STRING. | |
147 | Preserve case in each match if `case-replace' and `case-fold-search' | |
148 | are non-nil and FROM-STRING has no uppercase letters. | |
9b0bf2b6 RS |
149 | \(Preserving case means that if the string matched is all caps, or capitalized, |
150 | then its replacement is upcased or capitalized.) | |
151 | ||
7ef5c431 KH |
152 | In Transient Mark mode, if the mark is active, operate on the contents |
153 | of the region. Otherwise, operate from point to the end of the buffer. | |
154 | ||
118a01c9 | 155 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 RM |
156 | only matches surrounded by word boundaries. |
157 | ||
151270f3 RS |
158 | If `query-replace-interactive' is non-nil, the last incremental search |
159 | string is used as FROM-STRING--you don't have to specify it with the | |
160 | minibuffer. | |
161 | ||
da44e784 RM |
162 | This function is usually the wrong thing to use in a Lisp program. |
163 | What you probably want is a loop like this: | |
118a01c9 RS |
164 | (while (search-forward FROM-STRING nil t) |
165 | (replace-match TO-STRING nil t)) | |
87532fbe RS |
166 | which will run faster and will not set the mark or print anything. |
167 | \(You may need a more complex loop if FROM-STRING can match the null string | |
168 | and TO-STRING is also null.)" | |
151270f3 | 169 | (interactive (query-replace-read-args "Replace string" nil)) |
4d33492a | 170 | (perform-replace from-string to-string nil nil delimited)) |
da44e784 | 171 | |
da44e784 RM |
172 | (defun replace-regexp (regexp to-string &optional delimited) |
173 | "Replace things after point matching REGEXP with TO-STRING. | |
118a01c9 | 174 | Preserve case in each match if `case-replace' and `case-fold-search' |
da44e784 | 175 | are non-nil and REGEXP has no uppercase letters. |
118a01c9 | 176 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 177 | only matches surrounded by word boundaries. |
118a01c9 RS |
178 | In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, |
179 | and `\\=\\N' (where N is a digit) stands for | |
880f22a1 | 180 | whatever what matched the Nth `\\(...\\)' in REGEXP. |
da44e784 | 181 | |
7ef5c431 KH |
182 | In Transient Mark mode, if the mark is active, operate on the contents |
183 | of the region. Otherwise, operate from point to the end of the buffer. | |
184 | ||
151270f3 RS |
185 | If `query-replace-interactive' is non-nil, the last incremental search |
186 | regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
187 | ||
da44e784 RM |
188 | This function is usually the wrong thing to use in a Lisp program. |
189 | What you probably want is a loop like this: | |
190 | (while (re-search-forward REGEXP nil t) | |
118a01c9 | 191 | (replace-match TO-STRING nil nil)) |
da44e784 | 192 | which will run faster and will not set the mark or print anything." |
151270f3 | 193 | (interactive (query-replace-read-args "Replace regexp" t)) |
4d33492a | 194 | (perform-replace regexp to-string nil t delimited)) |
4c53bd2b RS |
195 | \f |
196 | (defvar regexp-history nil | |
197 | "History list for some commands that read regular expressions.") | |
da44e784 | 198 | |
31e1d920 | 199 | (defalias 'delete-non-matching-lines 'keep-lines) |
698e1804 RS |
200 | (defun keep-lines (regexp) |
201 | "Delete all lines except those containing matches for REGEXP. | |
202 | A match split across lines preserves all the lines it lies in. | |
203 | Applies to all lines after point." | |
4c53bd2b | 204 | (interactive (list (read-from-minibuffer |
72f21cdf | 205 | "Keep lines (containing match for regexp): " |
fce31d51 | 206 | nil nil nil 'regexp-history nil t))) |
698e1804 RS |
207 | (save-excursion |
208 | (or (bolp) (forward-line 1)) | |
209 | (let ((start (point))) | |
210 | (while (not (eobp)) | |
211 | ;; Start is first char not preserved by previous match. | |
212 | (if (not (re-search-forward regexp nil 'move)) | |
213 | (delete-region start (point-max)) | |
214 | (let ((end (save-excursion (goto-char (match-beginning 0)) | |
215 | (beginning-of-line) | |
216 | (point)))) | |
217 | ;; Now end is first char preserved by the new match. | |
218 | (if (< start end) | |
219 | (delete-region start end)))) | |
220 | (setq start (save-excursion (forward-line 1) | |
221 | (point))) | |
222 | ;; If the match was empty, avoid matching again at same place. | |
223 | (and (not (eobp)) (= (match-beginning 0) (match-end 0)) | |
224 | (forward-char 1)))))) | |
225 | ||
31e1d920 | 226 | (defalias 'delete-matching-lines 'flush-lines) |
698e1804 RS |
227 | (defun flush-lines (regexp) |
228 | "Delete lines containing matches for REGEXP. | |
229 | If a match is split across lines, all the lines it lies in are deleted. | |
230 | Applies to lines after point." | |
4c53bd2b | 231 | (interactive (list (read-from-minibuffer |
72f21cdf | 232 | "Flush lines (containing match for regexp): " |
fce31d51 | 233 | nil nil nil 'regexp-history nil t))) |
698e1804 RS |
234 | (save-excursion |
235 | (while (and (not (eobp)) | |
236 | (re-search-forward regexp nil t)) | |
237 | (delete-region (save-excursion (goto-char (match-beginning 0)) | |
238 | (beginning-of-line) | |
239 | (point)) | |
240 | (progn (forward-line 1) (point)))))) | |
241 | ||
31e1d920 | 242 | (defalias 'count-matches 'how-many) |
698e1804 RS |
243 | (defun how-many (regexp) |
244 | "Print number of matches for REGEXP following point." | |
fce31d51 KH |
245 | (interactive (list(read-from-minibuffer |
246 | "How many matches for (regexp): " | |
247 | nil nil nil 'regexp-history nil t))) | |
698e1804 RS |
248 | (let ((count 0) opoint) |
249 | (save-excursion | |
250 | (while (and (not (eobp)) | |
251 | (progn (setq opoint (point)) | |
252 | (re-search-forward regexp nil t))) | |
253 | (if (= opoint (point)) | |
254 | (forward-char 1) | |
255 | (setq count (1+ count)))) | |
256 | (message "%d occurrences" count)))) | |
4c53bd2b | 257 | \f |
698e1804 RS |
258 | (defvar occur-mode-map ()) |
259 | (if occur-mode-map | |
260 | () | |
261 | (setq occur-mode-map (make-sparse-keymap)) | |
78bead73 | 262 | (define-key occur-mode-map [mouse-2] 'occur-mode-mouse-goto) |
0081c8a1 | 263 | (define-key occur-mode-map "\C-c\C-c" 'occur-mode-goto-occurrence) |
a41284da | 264 | (define-key occur-mode-map "\C-m" 'occur-mode-goto-occurrence) |
8d15583f RS |
265 | (define-key occur-mode-map "\M-n" 'occur-next) |
266 | (define-key occur-mode-map "\M-p" 'occur-prev) | |
a41284da | 267 | (define-key occur-mode-map "g" 'revert-buffer)) |
698e1804 | 268 | |
e09d4033 RS |
269 | |
270 | (defvar occur-buffer nil | |
271 | "Name of buffer for last occur.") | |
272 | ||
273 | ||
274 | (defvar occur-nlines nil | |
275 | "Number of lines of context to show around matching line.") | |
276 | ||
a41284da RS |
277 | (defvar occur-command-arguments nil |
278 | "Arguments that were given to `occur' when it made this buffer.") | |
698e1804 | 279 | |
de3c9b09 RS |
280 | (put 'occur-mode 'mode-class 'special) |
281 | ||
698e1804 RS |
282 | (defun occur-mode () |
283 | "Major mode for output from \\[occur]. | |
0081c8a1 RS |
284 | \\<occur-mode-map>Move point to one of the items in this buffer, then use |
285 | \\[occur-mode-goto-occurrence] to go to the occurrence that the item refers to. | |
286 | Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it. | |
287 | ||
698e1804 RS |
288 | \\{occur-mode-map}" |
289 | (kill-all-local-variables) | |
290 | (use-local-map occur-mode-map) | |
291 | (setq major-mode 'occur-mode) | |
292 | (setq mode-name "Occur") | |
a41284da RS |
293 | (make-local-variable 'revert-buffer-function) |
294 | (setq revert-buffer-function 'occur-revert-function) | |
698e1804 RS |
295 | (make-local-variable 'occur-buffer) |
296 | (make-local-variable 'occur-nlines) | |
a41284da | 297 | (make-local-variable 'occur-command-arguments) |
4baf5620 | 298 | (run-hooks 'occur-mode-hook)) |
698e1804 | 299 | |
a41284da RS |
300 | ;; Handle revert-buffer for *Occur* buffers. |
301 | (defun occur-revert-function (ignore1 ignore2) | |
302 | (let ((args occur-command-arguments )) | |
303 | (save-excursion | |
304 | (set-buffer occur-buffer) | |
305 | (apply 'occur args)))) | |
306 | ||
78bead73 RS |
307 | (defun occur-mode-mouse-goto (event) |
308 | "In Occur mode, go to the occurrence whose line you click on." | |
309 | (interactive "e") | |
310 | (let (buffer pos) | |
311 | (save-excursion | |
312 | (set-buffer (window-buffer (posn-window (event-end event)))) | |
313 | (save-excursion | |
314 | (goto-char (posn-point (event-end event))) | |
315 | (setq pos (occur-mode-find-occurrence)) | |
316 | (setq buffer occur-buffer))) | |
317 | (pop-to-buffer buffer) | |
318 | (goto-char (marker-position pos)))) | |
319 | ||
320 | (defun occur-mode-find-occurrence () | |
698e1804 RS |
321 | (if (or (null occur-buffer) |
322 | (null (buffer-name occur-buffer))) | |
323 | (progn | |
8d15583f | 324 | (setq occur-buffer nil) |
698e1804 | 325 | (error "Buffer in which occurrences were found is deleted"))) |
8d15583f RS |
326 | (let ((pos (get-text-property (point) 'occur))) |
327 | (if (null pos) | |
328 | (error "No occurrence on this line") | |
329 | pos))) | |
78bead73 RS |
330 | |
331 | (defun occur-mode-goto-occurrence () | |
332 | "Go to the occurrence the current line describes." | |
333 | (interactive) | |
334 | (let ((pos (occur-mode-find-occurrence))) | |
698e1804 | 335 | (pop-to-buffer occur-buffer) |
121e2227 | 336 | (goto-char (marker-position pos)))) |
8d15583f RS |
337 | |
338 | (defun occur-next (&optional n) | |
339 | "Move to the Nth (default 1) next match in the *Occur* buffer." | |
340 | (interactive "p") | |
341 | (if (not n) (setq n 1)) | |
342 | (let ((r)) | |
343 | (while (> n 0) | |
344 | (if (get-text-property (point) 'occur-point) | |
345 | (forward-char 1)) | |
346 | (setq r (next-single-property-change (point) 'occur-point)) | |
347 | (if r | |
348 | (goto-char r) | |
349 | (error "no more matches")) | |
350 | (setq n (1- n))))) | |
351 | ||
352 | ||
353 | ||
354 | (defun occur-prev (&optional n) | |
355 | "Move to the Nth (default 1) previous match in the *Occur* buffer." | |
356 | (interactive "p") | |
357 | (if (not n) (setq n 1)) | |
358 | (let ((r)) | |
359 | (while (> n 0) | |
360 | ||
361 | (setq r (get-text-property (point) 'occur-point)) | |
362 | (if r (forward-char -1)) | |
363 | ||
364 | (setq r (previous-single-property-change (point) 'occur-point)) | |
365 | (if r | |
366 | (goto-char (- r 1)) | |
367 | (error "no earlier matches")) | |
368 | ||
369 | (setq n (1- n))))) | |
4c53bd2b | 370 | \f |
9d325ebf | 371 | (defcustom list-matching-lines-default-context-lines 0 |
da44e784 | 372 | "*Default number of context lines to include around a `list-matching-lines' |
698e1804 | 373 | match. A negative number means to include that many lines before the match. |
9d325ebf RS |
374 | A positive number means to include that many lines both before and after." |
375 | :type 'integer | |
376 | :group 'matching) | |
698e1804 | 377 | |
31e1d920 | 378 | (defalias 'list-matching-lines 'occur) |
698e1804 | 379 | |
c9daced0 RS |
380 | (defvar list-matching-lines-face 'bold |
381 | "*Face used by M-x list-matching-lines to show the text that matches. | |
382 | If the value is nil, don't highlight the matching portions specially.") | |
383 | ||
698e1804 | 384 | (defun occur (regexp &optional nlines) |
99976f85 | 385 | "Show all lines in the current buffer containing a match for REGEXP. |
da44e784 RM |
386 | |
387 | If a match spreads across multiple lines, all those lines are shown. | |
698e1804 | 388 | |
da44e784 RM |
389 | Each line is displayed with NLINES lines before and after, or -NLINES |
390 | before if NLINES is negative. | |
391 | NLINES defaults to `list-matching-lines-default-context-lines'. | |
698e1804 RS |
392 | Interactively it is the prefix arg. |
393 | ||
4c53bd2b | 394 | The lines are shown in a buffer named `*Occur*'. |
698e1804 | 395 | It serves as a menu to find any of the occurrences in this buffer. |
de3c9b09 | 396 | \\<occur-mode-map>\\[describe-mode] in that buffer will explain how. |
9483d601 | 397 | |
de3c9b09 RS |
398 | If REGEXP contains upper case characters (excluding those preceded by `\\'), |
399 | the matching is case-sensitive." | |
a5dfed3e RS |
400 | (interactive |
401 | (list (let* ((default (car regexp-history)) | |
402 | (input | |
403 | (read-from-minibuffer | |
404 | (if default | |
405 | (format "List lines matching regexp (default `%s'): " | |
406 | default) | |
407 | "List lines matching regexp: ") | |
aeab5be0 RS |
408 | nil nil nil 'regexp-history default t))) |
409 | (set-text-properties 0 (length input) nil input) | |
410 | input) | |
a5dfed3e RS |
411 | current-prefix-arg)) |
412 | (let ((nlines (if nlines | |
413 | (prefix-numeric-value nlines) | |
414 | list-matching-lines-default-context-lines)) | |
415 | (first t) | |
e09d4033 | 416 | ;;flag to prevent printing separator for first match |
8d15583f | 417 | (occur-num-matches 0) |
698e1804 | 418 | (buffer (current-buffer)) |
bdd610b2 | 419 | (dir default-directory) |
698e1804 | 420 | (linenum 1) |
e09d4033 RS |
421 | (prevpos |
422 | ;;position of most recent match | |
423 | (point-min)) | |
9483d601 RS |
424 | (case-fold-search (and case-fold-search |
425 | (isearch-no-upper-case-p regexp t))) | |
e09d4033 RS |
426 | (final-context-start |
427 | ;; Marker to the start of context immediately following | |
428 | ;; the matched text in *Occur*. | |
429 | (make-marker))) | |
99976f85 RS |
430 | ;;; (save-excursion |
431 | ;;; (beginning-of-line) | |
432 | ;;; (setq linenum (1+ (count-lines (point-min) (point)))) | |
433 | ;;; (setq prevpos (point))) | |
016c214f RS |
434 | (save-excursion |
435 | (goto-char (point-min)) | |
436 | ;; Check first whether there are any matches at all. | |
437 | (if (not (re-search-forward regexp nil t)) | |
438 | (message "No matches for `%s'" regexp) | |
439 | ;; Back up, so the search loop below will find the first match. | |
440 | (goto-char (match-beginning 0)) | |
441 | (with-output-to-temp-buffer "*Occur*" | |
442 | (save-excursion | |
443 | (set-buffer standard-output) | |
444 | (setq default-directory dir) | |
445 | ;; We will insert the number of lines, and "lines", later. | |
446 | (insert " matching ") | |
447 | (let ((print-escape-newlines t)) | |
448 | (prin1 regexp)) | |
449 | (insert " in buffer " (buffer-name buffer) ?. ?\n) | |
450 | (occur-mode) | |
451 | (setq occur-buffer buffer) | |
452 | (setq occur-nlines nlines) | |
a41284da RS |
453 | (setq occur-command-arguments |
454 | (list regexp nlines))) | |
016c214f | 455 | (if (eq buffer standard-output) |
91c6bdc0 | 456 | (goto-char (point-max))) |
016c214f RS |
457 | (save-excursion |
458 | ;; Find next match, but give up if prev match was at end of buffer. | |
459 | (while (and (not (= prevpos (point-max))) | |
460 | (re-search-forward regexp nil t)) | |
461 | (goto-char (match-beginning 0)) | |
462 | (beginning-of-line) | |
463 | (save-match-data | |
464 | (setq linenum (+ linenum (count-lines prevpos (point))))) | |
465 | (setq prevpos (point)) | |
466 | (goto-char (match-end 0)) | |
e09d4033 RS |
467 | (let* ((start |
468 | ;;start point of text in source buffer to be put | |
469 | ;;into *Occur* | |
470 | (save-excursion | |
016c214f | 471 | (goto-char (match-beginning 0)) |
e09d4033 RS |
472 | (forward-line (if (< nlines 0) |
473 | nlines | |
474 | (- nlines))) | |
016c214f | 475 | (point))) |
e09d4033 RS |
476 | (end |
477 | ;; end point of text in source buffer to be put | |
478 | ;; into *Occur* | |
479 | (save-excursion | |
480 | (goto-char (match-end 0)) | |
481 | (if (> nlines 0) | |
482 | (forward-line (1+ nlines)) | |
483 | (forward-line 1)) | |
484 | (point))) | |
485 | (match-beg | |
486 | ;; Amount of context before matching text | |
487 | (- (match-beginning 0) start)) | |
488 | (match-len | |
489 | ;; Length of matching text | |
490 | (- (match-end 0) (match-beginning 0))) | |
016c214f RS |
491 | (tag (format "%5d" linenum)) |
492 | (empty (make-string (length tag) ?\ )) | |
e09d4033 | 493 | tem |
0f0a7f7c | 494 | insertion-start |
e09d4033 RS |
495 | ;; Number of lines of context to show for current match. |
496 | occur-marker | |
497 | ;; Marker pointing to end of match in source buffer. | |
498 | (text-beg | |
499 | ;; Marker pointing to start of text for one | |
500 | ;; match in *Occur*. | |
501 | (make-marker)) | |
502 | (text-end | |
503 | ;; Marker pointing to end of text for one match | |
504 | ;; in *Occur*. | |
505 | (make-marker)) | |
8d15583f | 506 | ) |
016c214f | 507 | (save-excursion |
8d15583f RS |
508 | (setq occur-marker (make-marker)) |
509 | (set-marker occur-marker (point)) | |
016c214f | 510 | (set-buffer standard-output) |
8d15583f | 511 | (setq occur-num-matches (1+ occur-num-matches)) |
016c214f RS |
512 | (or first (zerop nlines) |
513 | (insert "--------\n")) | |
514 | (setq first nil) | |
e09d4033 RS |
515 | |
516 | ;; Insert matching text including context lines from | |
517 | ;; source buffer into *Occur* | |
8d15583f | 518 | (set-marker text-beg (point)) |
0f0a7f7c | 519 | (setq insertion-start (point)) |
016c214f | 520 | (insert-buffer-substring buffer start end) |
0f0a7f7c KH |
521 | (or (and (/= (+ start match-beg) end) |
522 | (with-current-buffer buffer | |
523 | (eq (char-before end) ?\n))) | |
524 | (insert "\n")) | |
525 | (set-marker final-context-start | |
526 | (+ (- (point) (- end (match-end 0))) | |
527 | (if (save-excursion | |
528 | (set-buffer buffer) | |
529 | (save-excursion | |
530 | (goto-char (match-end 0)) | |
531 | (end-of-line) | |
532 | (bolp))) | |
533 | 1 0))) | |
8d15583f | 534 | (set-marker text-end (point)) |
e09d4033 RS |
535 | |
536 | ;; Highlight text that was matched. | |
8d15583f RS |
537 | (if list-matching-lines-face |
538 | (put-text-property | |
539 | (+ (marker-position text-beg) match-beg) | |
540 | (+ (marker-position text-beg) match-beg match-len) | |
541 | 'face list-matching-lines-face)) | |
542 | ||
e09d4033 RS |
543 | ;; `occur-point' property is used by occur-next and |
544 | ;; occur-prev to move between matching lines. | |
8d15583f RS |
545 | (put-text-property |
546 | (+ (marker-position text-beg) match-beg match-len) | |
547 | (+ (marker-position text-beg) match-beg match-len 1) | |
548 | 'occur-point t) | |
e09d4033 RS |
549 | |
550 | ;; Now go back to the start of the matching text | |
551 | ;; adding the space and colon to the start of each line. | |
0f0a7f7c | 552 | (goto-char insertion-start) |
e09d4033 | 553 | ;; Insert space and colon for lines of context before match. |
8d15583f RS |
554 | (setq tem (if (< linenum nlines) |
555 | (- nlines linenum) | |
556 | nlines)) | |
016c214f RS |
557 | (while (> tem 0) |
558 | (insert empty ?:) | |
559 | (forward-line 1) | |
560 | (setq tem (1- tem))) | |
e09d4033 RS |
561 | |
562 | ;; Insert line number and colon for the lines of | |
563 | ;; matching text. | |
564 | (let ((this-linenum linenum)) | |
016c214f RS |
565 | (while (< (point) final-context-start) |
566 | (if (null tag) | |
567 | (setq tag (format "%5d" this-linenum))) | |
568 | (insert tag ?:) | |
016c214f RS |
569 | (forward-line 1) |
570 | (setq tag nil) | |
571 | (setq this-linenum (1+ this-linenum))) | |
0f0a7f7c | 572 | (while (and (not (eobp)) (<= (point) final-context-start)) |
016c214f RS |
573 | (insert empty ?:) |
574 | (forward-line 1) | |
575 | (setq this-linenum (1+ this-linenum)))) | |
e09d4033 RS |
576 | |
577 | ;; Insert space and colon for lines of context after match. | |
8d15583f | 578 | (while (and (< (point) (point-max)) (< tem nlines)) |
016c214f RS |
579 | (insert empty ?:) |
580 | (forward-line 1) | |
581 | (setq tem (1+ tem))) | |
8d15583f RS |
582 | |
583 | ;; Add text properties. The `occur' prop is used to | |
584 | ;; store the marker of the matching text in the | |
585 | ;; source buffer. | |
586 | (put-text-property (marker-position text-beg) | |
587 | (- (marker-position text-end) 1) | |
588 | 'mouse-face 'highlight) | |
589 | (put-text-property (marker-position text-beg) | |
e09d4033 | 590 | (marker-position text-end) |
8d15583f | 591 | 'occur occur-marker) |
016c214f RS |
592 | (goto-char (point-max))) |
593 | (forward-line 1))) | |
594 | (set-buffer standard-output) | |
e09d4033 RS |
595 | ;; Go back to top of *Occur* and finish off by printing the |
596 | ;; number of matching lines. | |
016c214f | 597 | (goto-char (point-min)) |
65b4665c | 598 | (let ((message-string |
8d15583f | 599 | (if (= occur-num-matches 1) |
65b4665c | 600 | "1 line" |
8d15583f | 601 | (format "%d lines" occur-num-matches)))) |
65b4665c RS |
602 | (insert message-string) |
603 | (if (interactive-p) | |
604 | (message "%s matched" message-string))))))))) | |
698e1804 | 605 | \f |
81bdc14d RS |
606 | ;; It would be nice to use \\[...], but there is no reasonable way |
607 | ;; to make that display both SPC and Y. | |
698e1804 RS |
608 | (defconst query-replace-help |
609 | "Type Space or `y' to replace one match, Delete or `n' to skip to next, | |
be44f62c | 610 | RET or `q' to exit, Period to replace one match and exit, |
698e1804 RS |
611 | Comma to replace but not move point immediately, |
612 | C-r to enter recursive edit (\\[exit-recursive-edit] to get out again), | |
613 | C-w to delete match and recursive edit, | |
614 | C-l to clear the screen, redisplay, and offer same replacement again, | |
615 | ! to replace all remaining matches with no more questions, | |
616 | ^ to move point back to previous match." | |
617 | "Help message while in query-replace") | |
618 | ||
81bdc14d RS |
619 | (defvar query-replace-map (make-sparse-keymap) |
620 | "Keymap that defines the responses to questions in `query-replace'. | |
621 | The \"bindings\" in this map are not commands; they are answers. | |
622 | The valid answers include `act', `skip', `act-and-show', | |
623 | `exit', `act-and-exit', `edit', `delete-and-edit', `recenter', | |
d9121bc0 | 624 | `automatic', `backup', `exit-prefix', and `help'.") |
81bdc14d RS |
625 | |
626 | (define-key query-replace-map " " 'act) | |
627 | (define-key query-replace-map "\d" 'skip) | |
628 | (define-key query-replace-map [delete] 'skip) | |
9275e5e3 | 629 | (define-key query-replace-map [backspace] 'skip) |
81bdc14d RS |
630 | (define-key query-replace-map "y" 'act) |
631 | (define-key query-replace-map "n" 'skip) | |
633a305a RS |
632 | (define-key query-replace-map "Y" 'act) |
633 | (define-key query-replace-map "N" 'skip) | |
81bdc14d | 634 | (define-key query-replace-map "," 'act-and-show) |
81bdc14d | 635 | (define-key query-replace-map "q" 'exit) |
919592c0 | 636 | (define-key query-replace-map "\r" 'exit) |
384c7da4 | 637 | (define-key query-replace-map [return] 'exit) |
81bdc14d RS |
638 | (define-key query-replace-map "." 'act-and-exit) |
639 | (define-key query-replace-map "\C-r" 'edit) | |
640 | (define-key query-replace-map "\C-w" 'delete-and-edit) | |
641 | (define-key query-replace-map "\C-l" 'recenter) | |
642 | (define-key query-replace-map "!" 'automatic) | |
643 | (define-key query-replace-map "^" 'backup) | |
644 | (define-key query-replace-map "\C-h" 'help) | |
e731045a KH |
645 | (define-key query-replace-map [f1] 'help) |
646 | (define-key query-replace-map [help] 'help) | |
81bdc14d | 647 | (define-key query-replace-map "?" 'help) |
bc6312e1 RS |
648 | (define-key query-replace-map "\C-g" 'quit) |
649 | (define-key query-replace-map "\C-]" 'quit) | |
d9121bc0 RS |
650 | (define-key query-replace-map "\e" 'exit-prefix) |
651 | (define-key query-replace-map [escape] 'exit-prefix) | |
81bdc14d | 652 | |
698e1804 RS |
653 | (defun perform-replace (from-string replacements |
654 | query-flag regexp-flag delimited-flag | |
81bdc14d | 655 | &optional repeat-count map) |
698e1804 RS |
656 | "Subroutine of `query-replace'. Its complexity handles interactive queries. |
657 | Don't use this in your own program unless you want to query and set the mark | |
658 | just as `query-replace' does. Instead, write a simple loop like this: | |
659 | (while (re-search-forward \"foo[ \t]+bar\" nil t) | |
660 | (replace-match \"foobar\" nil nil)) | |
e782e9f2 | 661 | which will run faster and probably do exactly what you want." |
81bdc14d | 662 | (or map (setq map query-replace-map)) |
1c1dadab RS |
663 | (and query-flag minibuffer-auto-raise |
664 | (raise-frame (window-frame (minibuffer-window)))) | |
698e1804 RS |
665 | (let ((nocasify (not (and case-fold-search case-replace |
666 | (string-equal from-string | |
667 | (downcase from-string))))) | |
668 | (literal (not regexp-flag)) | |
669 | (search-function (if regexp-flag 're-search-forward 'search-forward)) | |
670 | (search-string from-string) | |
e5d77022 | 671 | (real-match-data nil) ; the match data for the current match |
698e1804 RS |
672 | (next-replacement nil) |
673 | (replacement-index 0) | |
674 | (keep-going t) | |
675 | (stack nil) | |
676 | (next-rotate-count 0) | |
677 | (replace-count 0) | |
5632eb27 PE |
678 | (nonempty-match nil) |
679 | ||
7ef5c431 KH |
680 | ;; If non-nil, it is marker saying where in the buffer to stop. |
681 | (limit nil) | |
682 | ||
5632eb27 PE |
683 | ;; Data for the next match. If a cons, it has the same format as |
684 | ;; (match-data); otherwise it is t if a match is possible at point. | |
ae4eb03c | 685 | (match-again t) |
5632eb27 | 686 | |
02d95a27 RS |
687 | (message |
688 | (if query-flag | |
689 | (substitute-command-keys | |
690 | "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) ")))) | |
7ef5c431 KH |
691 | |
692 | ;; If region is active, in Transient Mark mode, operate on region. | |
693 | (if (and transient-mark-mode mark-active) | |
694 | (progn | |
695 | (setq limit (copy-marker (region-end))) | |
696 | (goto-char (region-beginning)) | |
697 | (deactivate-mark))) | |
698e1804 RS |
698 | (if (stringp replacements) |
699 | (setq next-replacement replacements) | |
700 | (or repeat-count (setq repeat-count 1))) | |
701 | (if delimited-flag | |
702 | (setq search-function 're-search-forward | |
703 | search-string (concat "\\b" | |
704 | (if regexp-flag from-string | |
705 | (regexp-quote from-string)) | |
706 | "\\b"))) | |
707 | (push-mark) | |
708 | (undo-boundary) | |
e782e9f2 RS |
709 | (unwind-protect |
710 | ;; Loop finding occurrences that perhaps should be replaced. | |
711 | (while (and keep-going | |
712 | (not (eobp)) | |
5632eb27 PE |
713 | ;; Use the next match if it is already known; |
714 | ;; otherwise, search for a match after moving forward | |
715 | ;; one char if progress is required. | |
716 | (setq real-match-data | |
717 | (if (consp match-again) | |
718 | (progn (goto-char (nth 1 match-again)) | |
719 | match-again) | |
720 | (and (or match-again | |
721 | (progn | |
722 | (forward-char 1) | |
723 | (not (eobp)))) | |
7ef5c431 | 724 | (funcall search-function search-string limit t) |
5632eb27 PE |
725 | ;; For speed, use only integers and |
726 | ;; reuse the list used last time. | |
727 | (match-data t real-match-data))))) | |
728 | ||
729 | ;; Record whether the match is nonempty, to avoid an infinite loop | |
730 | ;; repeatedly matching the same empty string. | |
731 | (setq nonempty-match | |
732 | (/= (nth 0 real-match-data) (nth 1 real-match-data))) | |
733 | ||
734 | ;; If the match is empty, record that the next one can't be adjacent. | |
735 | ;; Otherwise, if matching a regular expression, do the next | |
736 | ;; match now, since the replacement for this match may | |
737 | ;; affect whether the next match is adjacent to this one. | |
738 | (setq match-again | |
739 | (and nonempty-match | |
740 | (or (not regexp-flag) | |
741 | (and (looking-at search-string) | |
937ab68f | 742 | (match-data))))) |
5632eb27 | 743 | |
e782e9f2 RS |
744 | ;; If time for a change, advance to next replacement string. |
745 | (if (and (listp replacements) | |
746 | (= next-rotate-count replace-count)) | |
747 | (progn | |
748 | (setq next-rotate-count | |
749 | (+ next-rotate-count repeat-count)) | |
750 | (setq next-replacement (nth replacement-index replacements)) | |
751 | (setq replacement-index (% (1+ replacement-index) (length replacements))))) | |
752 | (if (not query-flag) | |
753 | (progn | |
ae4eb03c | 754 | (store-match-data real-match-data) |
e782e9f2 RS |
755 | (replace-match next-replacement nocasify literal) |
756 | (setq replace-count (1+ replace-count))) | |
757 | (undo-boundary) | |
758 | (let (done replaced key def) | |
759 | ;; Loop reading commands until one of them sets done, | |
760 | ;; which means it has finished handling this occurrence. | |
761 | (while (not done) | |
301a9d17 | 762 | (store-match-data real-match-data) |
e782e9f2 | 763 | (replace-highlight (match-beginning 0) (match-end 0)) |
c006b215 KH |
764 | ;; Bind message-log-max so we don't fill up the message log |
765 | ;; with a bunch of identical messages. | |
766 | (let ((message-log-max nil)) | |
767 | (message message from-string next-replacement)) | |
e782e9f2 | 768 | (setq key (read-event)) |
f5e52cd3 RS |
769 | ;; Necessary in case something happens during read-event |
770 | ;; that clobbers the match data. | |
771 | (store-match-data real-match-data) | |
e782e9f2 RS |
772 | (setq key (vector key)) |
773 | (setq def (lookup-key map key)) | |
774 | ;; Restore the match data while we process the command. | |
e782e9f2 RS |
775 | (cond ((eq def 'help) |
776 | (with-output-to-temp-buffer "*Help*" | |
777 | (princ | |
778 | (concat "Query replacing " | |
779 | (if regexp-flag "regexp " "") | |
780 | from-string " with " | |
781 | next-replacement ".\n\n" | |
782 | (substitute-command-keys | |
b905ac33 KH |
783 | query-replace-help))) |
784 | (save-excursion | |
785 | (set-buffer standard-output) | |
786 | (help-mode)))) | |
e782e9f2 RS |
787 | ((eq def 'exit) |
788 | (setq keep-going nil) | |
789 | (setq done t)) | |
790 | ((eq def 'backup) | |
237e6ab0 KH |
791 | (if stack |
792 | (let ((elt (car stack))) | |
793 | (goto-char (car elt)) | |
794 | (setq replaced (eq t (cdr elt))) | |
795 | (or replaced | |
796 | (store-match-data (cdr elt))) | |
797 | (setq stack (cdr stack))) | |
798 | (message "No previous match") | |
799 | (ding 'no-terminate) | |
800 | (sit-for 1))) | |
e782e9f2 RS |
801 | ((eq def 'act) |
802 | (or replaced | |
3043b0b4 RS |
803 | (progn |
804 | (replace-match next-replacement nocasify literal) | |
805 | (setq replace-count (1+ replace-count)))) | |
e782e9f2 RS |
806 | (setq done t replaced t)) |
807 | ((eq def 'act-and-exit) | |
808 | (or replaced | |
3043b0b4 RS |
809 | (progn |
810 | (replace-match next-replacement nocasify literal) | |
811 | (setq replace-count (1+ replace-count)))) | |
e782e9f2 RS |
812 | (setq keep-going nil) |
813 | (setq done t replaced t)) | |
814 | ((eq def 'act-and-show) | |
815 | (if (not replaced) | |
816 | (progn | |
817 | (replace-match next-replacement nocasify literal) | |
3043b0b4 | 818 | (setq replace-count (1+ replace-count)) |
e782e9f2 RS |
819 | (setq replaced t)))) |
820 | ((eq def 'automatic) | |
821 | (or replaced | |
3043b0b4 RS |
822 | (progn |
823 | (replace-match next-replacement nocasify literal) | |
824 | (setq replace-count (1+ replace-count)))) | |
e782e9f2 RS |
825 | (setq done t query-flag nil replaced t)) |
826 | ((eq def 'skip) | |
827 | (setq done t)) | |
828 | ((eq def 'recenter) | |
829 | (recenter nil)) | |
830 | ((eq def 'edit) | |
831 | (store-match-data | |
832 | (prog1 (match-data) | |
ae4eb03c RS |
833 | (save-excursion (recursive-edit)))) |
834 | ;; Before we make the replacement, | |
835 | ;; decide whether the search string | |
836 | ;; can match again just after this match. | |
5632eb27 PE |
837 | (if (and regexp-flag nonempty-match) |
838 | (setq match-again (and (looking-at search-string) | |
937ab68f | 839 | (match-data))))) |
e782e9f2 RS |
840 | ((eq def 'delete-and-edit) |
841 | (delete-region (match-beginning 0) (match-end 0)) | |
842 | (store-match-data | |
843 | (prog1 (match-data) | |
844 | (save-excursion (recursive-edit)))) | |
845 | (setq replaced t)) | |
d9121bc0 RS |
846 | ;; Note: we do not need to treat `exit-prefix' |
847 | ;; specially here, since we reread | |
848 | ;; any unrecognized character. | |
e782e9f2 | 849 | (t |
d9121bc0 | 850 | (setq this-command 'mode-exited) |
e782e9f2 RS |
851 | (setq keep-going nil) |
852 | (setq unread-command-events | |
853 | (append (listify-key-sequence key) | |
854 | unread-command-events)) | |
855 | (setq done t)))) | |
856 | ;; Record previous position for ^ when we move on. | |
857 | ;; Change markers to numbers in the match data | |
858 | ;; since lots of markers slow down editing. | |
859 | (setq stack | |
860 | (cons (cons (point) | |
141aa68c | 861 | (or replaced (match-data t))) |
5632eb27 | 862 | stack))))) |
e782e9f2 | 863 | (replace-dehighlight)) |
4d33492a RS |
864 | (or unread-command-events |
865 | (message "Replaced %d occurrence%s" | |
866 | replace-count | |
867 | (if (= replace-count 1) "" "s"))) | |
868 | (and keep-going stack))) | |
698e1804 | 869 | |
95807e68 | 870 | (defcustom query-replace-highlight t |
9d325ebf RS |
871 | "*Non-nil means to highlight words during query replacement." |
872 | :type 'boolean | |
873 | :group 'matching) | |
e782e9f2 RS |
874 | |
875 | (defvar replace-overlay nil) | |
876 | ||
877 | (defun replace-dehighlight () | |
878 | (and replace-overlay | |
879 | (progn | |
880 | (delete-overlay replace-overlay) | |
881 | (setq replace-overlay nil)))) | |
882 | ||
883 | (defun replace-highlight (start end) | |
884 | (and query-replace-highlight | |
885 | (progn | |
886 | (or replace-overlay | |
887 | (progn | |
888 | (setq replace-overlay (make-overlay start end)) | |
889 | (overlay-put replace-overlay 'face | |
890 | (if (internal-find-face 'query-replace) | |
891 | 'query-replace 'region)))) | |
892 | (move-overlay replace-overlay start end (current-buffer))))) | |
893 | ||
c88ab9ce | 894 | ;;; replace.el ends here |