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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 | ||
bdb1c08f RS |
40 | (defcustom query-replace-from-history-variable 'query-replace-history |
41 | "History list to use for the FROM argument of query-replace commands. | |
42 | The value of this variable should be a symbol; that symbol | |
43 | is used as a variable to hold a history list for the strings | |
44 | or patterns to be replaced." | |
45 | :group 'matching | |
cd32a7ba DN |
46 | :type 'symbol |
47 | :version "20.3") | |
bdb1c08f RS |
48 | |
49 | (defcustom query-replace-to-history-variable 'query-replace-history | |
50 | "History list to use for the TO argument of query-replace commands. | |
51 | The value of this variable should be a symbol; that symbol | |
52 | is used as a variable to hold a history list for replacement | |
53 | strings or patterns." | |
54 | :group 'matching | |
cd32a7ba DN |
55 | :type 'symbol |
56 | :version "20.3") | |
bdb1c08f | 57 | |
151270f3 | 58 | (defun query-replace-read-args (string regexp-flag) |
770970cb | 59 | (let (from to) |
151270f3 RS |
60 | (if query-replace-interactive |
61 | (setq from (car (if regexp-flag regexp-search-ring search-ring))) | |
62 | (setq from (read-from-minibuffer (format "%s: " string) | |
63 | nil nil nil | |
bdb1c08f RS |
64 | query-replace-from-history-variable |
65 | nil t))) | |
770970cb RS |
66 | (setq to (read-from-minibuffer (format "%s %s with: " string from) |
67 | nil nil nil | |
4a8f3b3d | 68 | query-replace-to-history-variable from t)) |
770970cb RS |
69 | (list from to current-prefix-arg))) |
70 | ||
da44e784 RM |
71 | (defun query-replace (from-string to-string &optional arg) |
72 | "Replace some occurrences of FROM-STRING with TO-STRING. | |
73 | As each match is found, the user must type a character saying | |
74 | what to do with it. For directions, type \\[help-command] at that time. | |
75 | ||
7ef5c431 KH |
76 | In Transient Mark mode, if the mark is active, operate on the contents |
77 | of the region. Otherwise, operate from point to the end of the buffer. | |
78 | ||
151270f3 RS |
79 | If `query-replace-interactive' is non-nil, the last incremental search |
80 | string is used as FROM-STRING--you don't have to specify it with the | |
81 | minibuffer. | |
82 | ||
d2a0ee8b RS |
83 | Replacement transfers the case of the old text to the new text, |
84 | if `case-replace' and `case-fold-search' | |
da44e784 | 85 | are non-nil and FROM-STRING has no uppercase letters. |
9b0bf2b6 RS |
86 | \(Preserving case means that if the string matched is all caps, or capitalized, |
87 | then its replacement is upcased or capitalized.) | |
88 | ||
118a01c9 | 89 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
81bdc14d RS |
90 | only matches surrounded by word boundaries. |
91 | ||
92 | To customize possible responses, change the \"bindings\" in `query-replace-map'." | |
151270f3 | 93 | (interactive (query-replace-read-args "Query replace" nil)) |
4d33492a | 94 | (perform-replace from-string to-string t nil arg)) |
7ef5c431 | 95 | |
73fa8346 | 96 | (define-key esc-map "%" 'query-replace) |
da44e784 | 97 | |
da44e784 RM |
98 | (defun query-replace-regexp (regexp to-string &optional arg) |
99 | "Replace some things after point matching REGEXP with TO-STRING. | |
100 | As each match is found, the user must type a character saying | |
101 | what to do with it. For directions, type \\[help-command] at that time. | |
102 | ||
7ef5c431 KH |
103 | In Transient Mark mode, if the mark is active, operate on the contents |
104 | of the region. Otherwise, operate from point to the end of the buffer. | |
105 | ||
151270f3 RS |
106 | If `query-replace-interactive' is non-nil, the last incremental search |
107 | regexp is used as REGEXP--you don't have to specify it with the | |
108 | minibuffer. | |
109 | ||
118a01c9 | 110 | Preserves case in each replacement if `case-replace' and `case-fold-search' |
da44e784 | 111 | are non-nil and REGEXP has no uppercase letters. |
118a01c9 | 112 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 113 | only matches surrounded by word boundaries. |
118a01c9 RS |
114 | In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, |
115 | and `\\=\\N' (where N is a digit) stands for | |
116 | whatever what matched the Nth `\\(...\\)' in REGEXP." | |
151270f3 | 117 | (interactive (query-replace-read-args "Query replace regexp" t)) |
4d33492a | 118 | (perform-replace regexp to-string t t arg)) |
cbc127de | 119 | (define-key esc-map [?\C-%] 'query-replace-regexp) |
da44e784 | 120 | |
84482eb3 RS |
121 | (defun query-replace-regexp-eval (regexp to-expr &optional arg) |
122 | "Replace some things after point matching REGEXP with the result of TO-EXPR. | |
123 | As each match is found, the user must type a character saying | |
124 | what to do with it. For directions, type \\[help-command] at that time. | |
125 | ||
126 | TO-EXPR is a Lisp expression evaluated to compute each replacement. It may | |
127 | reference `replace-count' to get the number of replacements already made. | |
128 | If the result of TO-EXPR is not a string, it is converted to one using | |
129 | `prin1-to-string' with the NOESCAPE argument (which see). | |
130 | ||
131 | For convenience, when entering TO-EXPR interactively, you can use `\\&' or | |
132 | `\\0'to stand for whatever matched the whole of REGEXP, and `\\=\\N' (where | |
133 | N is a digit) stands for whatever what matched the Nth `\\(...\\)' in REGEXP. | |
134 | Use `\\#&' or `\\#N' if you want a number instead of a string. | |
135 | ||
136 | In Transient Mark mode, if the mark is active, operate on the contents | |
137 | of the region. Otherwise, operate from point to the end of the buffer. | |
138 | ||
139 | If `query-replace-interactive' is non-nil, the last incremental search | |
140 | regexp is used as REGEXP--you don't have to specify it with the | |
141 | minibuffer. | |
142 | ||
143 | Preserves case in each replacement if `case-replace' and `case-fold-search' | |
144 | are non-nil and REGEXP has no uppercase letters. | |
145 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
146 | only matches surrounded by word boundaries." | |
147 | (interactive | |
148 | (let (from to) | |
149 | (if query-replace-interactive | |
150 | (setq from (car regexp-search-ring)) | |
151 | (setq from (read-from-minibuffer "Query replace regexp: " | |
152 | nil nil nil | |
153 | query-replace-from-history-variable | |
154 | nil t))) | |
155 | (setq to (list (read-from-minibuffer | |
156 | (format "Query replace regexp %s with eval: " from) | |
157 | nil nil t query-replace-to-history-variable from t))) | |
158 | ;; We make TO a list because replace-match-string-symbols requires one, | |
159 | ;; and the user might enter a single token. | |
160 | (replace-match-string-symbols to) | |
161 | (list from (car to) current-prefix-arg))) | |
162 | (perform-replace regexp (cons 'replace-eval-replacement to-expr) t t arg)) | |
163 | ||
da44e784 RM |
164 | (defun map-query-replace-regexp (regexp to-strings &optional arg) |
165 | "Replace some matches for REGEXP with various strings, in rotation. | |
166 | The second argument TO-STRINGS contains the replacement strings, separated | |
167 | by spaces. This command works like `query-replace-regexp' except | |
168 | that each successive replacement uses the next successive replacement string, | |
169 | wrapping around from the last such string to the first. | |
170 | ||
7ef5c431 KH |
171 | In Transient Mark mode, if the mark is active, operate on the contents |
172 | of the region. Otherwise, operate from point to the end of the buffer. | |
173 | ||
da44e784 RM |
174 | Non-interactively, TO-STRINGS may be a list of replacement strings. |
175 | ||
151270f3 RS |
176 | If `query-replace-interactive' is non-nil, the last incremental search |
177 | regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
178 | ||
da44e784 RM |
179 | A prefix argument N says to use each replacement string N times |
180 | before rotating to the next." | |
770970cb RS |
181 | (interactive |
182 | (let (from to) | |
151270f3 RS |
183 | (setq from (if query-replace-interactive |
184 | (car regexp-search-ring) | |
185 | (read-from-minibuffer "Map query replace (regexp): " | |
186 | nil nil nil | |
fce31d51 | 187 | 'query-replace-history nil t))) |
770970cb RS |
188 | (setq to (read-from-minibuffer |
189 | (format "Query replace %s with (space-separated strings): " | |
190 | from) | |
191 | nil nil nil | |
4a8f3b3d | 192 | 'query-replace-history from t)) |
770970cb | 193 | (list from to current-prefix-arg))) |
da44e784 RM |
194 | (let (replacements) |
195 | (if (listp to-strings) | |
196 | (setq replacements to-strings) | |
197 | (while (/= (length to-strings) 0) | |
198 | (if (string-match " " to-strings) | |
199 | (setq replacements | |
200 | (append replacements | |
201 | (list (substring to-strings 0 | |
202 | (string-match " " to-strings)))) | |
203 | to-strings (substring to-strings | |
204 | (1+ (string-match " " to-strings)))) | |
205 | (setq replacements (append replacements (list to-strings)) | |
206 | to-strings "")))) | |
4d33492a | 207 | (perform-replace regexp replacements t t nil arg))) |
da44e784 | 208 | |
da44e784 RM |
209 | (defun replace-string (from-string to-string &optional delimited) |
210 | "Replace occurrences of FROM-STRING with TO-STRING. | |
211 | Preserve case in each match if `case-replace' and `case-fold-search' | |
212 | are non-nil and FROM-STRING has no uppercase letters. | |
9b0bf2b6 RS |
213 | \(Preserving case means that if the string matched is all caps, or capitalized, |
214 | then its replacement is upcased or capitalized.) | |
215 | ||
7ef5c431 KH |
216 | In Transient Mark mode, if the mark is active, operate on the contents |
217 | of the region. Otherwise, operate from point to the end of the buffer. | |
218 | ||
118a01c9 | 219 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 RM |
220 | only matches surrounded by word boundaries. |
221 | ||
151270f3 RS |
222 | If `query-replace-interactive' is non-nil, the last incremental search |
223 | string is used as FROM-STRING--you don't have to specify it with the | |
224 | minibuffer. | |
225 | ||
da44e784 RM |
226 | This function is usually the wrong thing to use in a Lisp program. |
227 | What you probably want is a loop like this: | |
118a01c9 RS |
228 | (while (search-forward FROM-STRING nil t) |
229 | (replace-match TO-STRING nil t)) | |
87532fbe RS |
230 | which will run faster and will not set the mark or print anything. |
231 | \(You may need a more complex loop if FROM-STRING can match the null string | |
232 | and TO-STRING is also null.)" | |
151270f3 | 233 | (interactive (query-replace-read-args "Replace string" nil)) |
4d33492a | 234 | (perform-replace from-string to-string nil nil delimited)) |
da44e784 | 235 | |
da44e784 RM |
236 | (defun replace-regexp (regexp to-string &optional delimited) |
237 | "Replace things after point matching REGEXP with TO-STRING. | |
118a01c9 | 238 | Preserve case in each match if `case-replace' and `case-fold-search' |
da44e784 | 239 | are non-nil and REGEXP has no uppercase letters. |
118a01c9 | 240 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 241 | only matches surrounded by word boundaries. |
118a01c9 RS |
242 | In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, |
243 | and `\\=\\N' (where N is a digit) stands for | |
880f22a1 | 244 | whatever what matched the Nth `\\(...\\)' in REGEXP. |
da44e784 | 245 | |
7ef5c431 KH |
246 | In Transient Mark mode, if the mark is active, operate on the contents |
247 | of the region. Otherwise, operate from point to the end of the buffer. | |
248 | ||
151270f3 RS |
249 | If `query-replace-interactive' is non-nil, the last incremental search |
250 | regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
251 | ||
da44e784 RM |
252 | This function is usually the wrong thing to use in a Lisp program. |
253 | What you probably want is a loop like this: | |
254 | (while (re-search-forward REGEXP nil t) | |
118a01c9 | 255 | (replace-match TO-STRING nil nil)) |
da44e784 | 256 | which will run faster and will not set the mark or print anything." |
151270f3 | 257 | (interactive (query-replace-read-args "Replace regexp" t)) |
4d33492a | 258 | (perform-replace regexp to-string nil t delimited)) |
4c53bd2b RS |
259 | \f |
260 | (defvar regexp-history nil | |
261 | "History list for some commands that read regular expressions.") | |
da44e784 | 262 | |
31e1d920 | 263 | (defalias 'delete-non-matching-lines 'keep-lines) |
698e1804 RS |
264 | (defun keep-lines (regexp) |
265 | "Delete all lines except those containing matches for REGEXP. | |
266 | A match split across lines preserves all the lines it lies in. | |
d2a0ee8b RS |
267 | Applies to all lines after point. |
268 | ||
269 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
270 | the matching is case-sensitive." | |
4c53bd2b | 271 | (interactive (list (read-from-minibuffer |
72f21cdf | 272 | "Keep lines (containing match for regexp): " |
fce31d51 | 273 | nil nil nil 'regexp-history nil t))) |
698e1804 RS |
274 | (save-excursion |
275 | (or (bolp) (forward-line 1)) | |
d2a0ee8b RS |
276 | (let ((start (point)) |
277 | (case-fold-search (and case-fold-search | |
278 | (isearch-no-upper-case-p regexp t)))) | |
698e1804 RS |
279 | (while (not (eobp)) |
280 | ;; Start is first char not preserved by previous match. | |
281 | (if (not (re-search-forward regexp nil 'move)) | |
282 | (delete-region start (point-max)) | |
283 | (let ((end (save-excursion (goto-char (match-beginning 0)) | |
284 | (beginning-of-line) | |
285 | (point)))) | |
286 | ;; Now end is first char preserved by the new match. | |
287 | (if (< start end) | |
288 | (delete-region start end)))) | |
289 | (setq start (save-excursion (forward-line 1) | |
290 | (point))) | |
291 | ;; If the match was empty, avoid matching again at same place. | |
292 | (and (not (eobp)) (= (match-beginning 0) (match-end 0)) | |
293 | (forward-char 1)))))) | |
294 | ||
31e1d920 | 295 | (defalias 'delete-matching-lines 'flush-lines) |
698e1804 RS |
296 | (defun flush-lines (regexp) |
297 | "Delete lines containing matches for REGEXP. | |
298 | If a match is split across lines, all the lines it lies in are deleted. | |
d2a0ee8b RS |
299 | Applies to lines after point. |
300 | ||
301 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
302 | the matching is case-sensitive." | |
4c53bd2b | 303 | (interactive (list (read-from-minibuffer |
72f21cdf | 304 | "Flush lines (containing match for regexp): " |
fce31d51 | 305 | nil nil nil 'regexp-history nil t))) |
d2a0ee8b RS |
306 | (let ((case-fold-search (and case-fold-search |
307 | (isearch-no-upper-case-p regexp t)))) | |
308 | (save-excursion | |
309 | (while (and (not (eobp)) | |
310 | (re-search-forward regexp nil t)) | |
311 | (delete-region (save-excursion (goto-char (match-beginning 0)) | |
312 | (beginning-of-line) | |
313 | (point)) | |
314 | (progn (forward-line 1) (point))))))) | |
698e1804 | 315 | |
31e1d920 | 316 | (defalias 'count-matches 'how-many) |
698e1804 | 317 | (defun how-many (regexp) |
d2a0ee8b RS |
318 | "Print number of matches for REGEXP following point. |
319 | ||
320 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
321 | the matching is case-sensitive." | |
b7f096ee RS |
322 | (interactive (list (read-from-minibuffer |
323 | "How many matches for (regexp): " | |
324 | nil nil nil 'regexp-history nil t))) | |
d2a0ee8b RS |
325 | (let ((count 0) opoint |
326 | (case-fold-search (and case-fold-search | |
327 | (isearch-no-upper-case-p regexp t)))) | |
698e1804 RS |
328 | (save-excursion |
329 | (while (and (not (eobp)) | |
330 | (progn (setq opoint (point)) | |
331 | (re-search-forward regexp nil t))) | |
332 | (if (= opoint (point)) | |
333 | (forward-char 1) | |
334 | (setq count (1+ count)))) | |
335 | (message "%d occurrences" count)))) | |
4c53bd2b | 336 | \f |
698e1804 RS |
337 | (defvar occur-mode-map ()) |
338 | (if occur-mode-map | |
339 | () | |
340 | (setq occur-mode-map (make-sparse-keymap)) | |
78bead73 | 341 | (define-key occur-mode-map [mouse-2] 'occur-mode-mouse-goto) |
0081c8a1 | 342 | (define-key occur-mode-map "\C-c\C-c" 'occur-mode-goto-occurrence) |
a41284da | 343 | (define-key occur-mode-map "\C-m" 'occur-mode-goto-occurrence) |
8d15583f RS |
344 | (define-key occur-mode-map "\M-n" 'occur-next) |
345 | (define-key occur-mode-map "\M-p" 'occur-prev) | |
a41284da | 346 | (define-key occur-mode-map "g" 'revert-buffer)) |
698e1804 | 347 | |
e09d4033 RS |
348 | |
349 | (defvar occur-buffer nil | |
350 | "Name of buffer for last occur.") | |
351 | ||
352 | ||
353 | (defvar occur-nlines nil | |
354 | "Number of lines of context to show around matching line.") | |
355 | ||
a41284da RS |
356 | (defvar occur-command-arguments nil |
357 | "Arguments that were given to `occur' when it made this buffer.") | |
698e1804 | 358 | |
de3c9b09 RS |
359 | (put 'occur-mode 'mode-class 'special) |
360 | ||
698e1804 RS |
361 | (defun occur-mode () |
362 | "Major mode for output from \\[occur]. | |
0081c8a1 RS |
363 | \\<occur-mode-map>Move point to one of the items in this buffer, then use |
364 | \\[occur-mode-goto-occurrence] to go to the occurrence that the item refers to. | |
365 | Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it. | |
366 | ||
698e1804 RS |
367 | \\{occur-mode-map}" |
368 | (kill-all-local-variables) | |
369 | (use-local-map occur-mode-map) | |
370 | (setq major-mode 'occur-mode) | |
371 | (setq mode-name "Occur") | |
a41284da RS |
372 | (make-local-variable 'revert-buffer-function) |
373 | (setq revert-buffer-function 'occur-revert-function) | |
698e1804 RS |
374 | (make-local-variable 'occur-buffer) |
375 | (make-local-variable 'occur-nlines) | |
a41284da | 376 | (make-local-variable 'occur-command-arguments) |
4baf5620 | 377 | (run-hooks 'occur-mode-hook)) |
698e1804 | 378 | |
a41284da RS |
379 | ;; Handle revert-buffer for *Occur* buffers. |
380 | (defun occur-revert-function (ignore1 ignore2) | |
381 | (let ((args occur-command-arguments )) | |
382 | (save-excursion | |
383 | (set-buffer occur-buffer) | |
384 | (apply 'occur args)))) | |
385 | ||
78bead73 RS |
386 | (defun occur-mode-mouse-goto (event) |
387 | "In Occur mode, go to the occurrence whose line you click on." | |
388 | (interactive "e") | |
389 | (let (buffer pos) | |
390 | (save-excursion | |
391 | (set-buffer (window-buffer (posn-window (event-end event)))) | |
392 | (save-excursion | |
393 | (goto-char (posn-point (event-end event))) | |
394 | (setq pos (occur-mode-find-occurrence)) | |
395 | (setq buffer occur-buffer))) | |
396 | (pop-to-buffer buffer) | |
397 | (goto-char (marker-position pos)))) | |
398 | ||
399 | (defun occur-mode-find-occurrence () | |
698e1804 RS |
400 | (if (or (null occur-buffer) |
401 | (null (buffer-name occur-buffer))) | |
402 | (progn | |
8d15583f | 403 | (setq occur-buffer nil) |
698e1804 | 404 | (error "Buffer in which occurrences were found is deleted"))) |
8d15583f RS |
405 | (let ((pos (get-text-property (point) 'occur))) |
406 | (if (null pos) | |
407 | (error "No occurrence on this line") | |
408 | pos))) | |
78bead73 RS |
409 | |
410 | (defun occur-mode-goto-occurrence () | |
411 | "Go to the occurrence the current line describes." | |
412 | (interactive) | |
413 | (let ((pos (occur-mode-find-occurrence))) | |
698e1804 | 414 | (pop-to-buffer occur-buffer) |
121e2227 | 415 | (goto-char (marker-position pos)))) |
8d15583f RS |
416 | |
417 | (defun occur-next (&optional n) | |
418 | "Move to the Nth (default 1) next match in the *Occur* buffer." | |
419 | (interactive "p") | |
420 | (if (not n) (setq n 1)) | |
421 | (let ((r)) | |
422 | (while (> n 0) | |
423 | (if (get-text-property (point) 'occur-point) | |
424 | (forward-char 1)) | |
425 | (setq r (next-single-property-change (point) 'occur-point)) | |
426 | (if r | |
427 | (goto-char r) | |
428 | (error "no more matches")) | |
429 | (setq n (1- n))))) | |
430 | ||
431 | ||
432 | ||
433 | (defun occur-prev (&optional n) | |
434 | "Move to the Nth (default 1) previous match in the *Occur* buffer." | |
435 | (interactive "p") | |
436 | (if (not n) (setq n 1)) | |
437 | (let ((r)) | |
438 | (while (> n 0) | |
439 | ||
440 | (setq r (get-text-property (point) 'occur-point)) | |
441 | (if r (forward-char -1)) | |
442 | ||
443 | (setq r (previous-single-property-change (point) 'occur-point)) | |
444 | (if r | |
445 | (goto-char (- r 1)) | |
446 | (error "no earlier matches")) | |
447 | ||
448 | (setq n (1- n))))) | |
4c53bd2b | 449 | \f |
9d325ebf | 450 | (defcustom list-matching-lines-default-context-lines 0 |
da44e784 | 451 | "*Default number of context lines to include around a `list-matching-lines' |
698e1804 | 452 | match. A negative number means to include that many lines before the match. |
9d325ebf RS |
453 | A positive number means to include that many lines both before and after." |
454 | :type 'integer | |
455 | :group 'matching) | |
698e1804 | 456 | |
31e1d920 | 457 | (defalias 'list-matching-lines 'occur) |
698e1804 | 458 | |
c9daced0 RS |
459 | (defvar list-matching-lines-face 'bold |
460 | "*Face used by M-x list-matching-lines to show the text that matches. | |
461 | If the value is nil, don't highlight the matching portions specially.") | |
462 | ||
698e1804 | 463 | (defun occur (regexp &optional nlines) |
99976f85 | 464 | "Show all lines in the current buffer containing a match for REGEXP. |
da44e784 RM |
465 | |
466 | If a match spreads across multiple lines, all those lines are shown. | |
698e1804 | 467 | |
da44e784 RM |
468 | Each line is displayed with NLINES lines before and after, or -NLINES |
469 | before if NLINES is negative. | |
470 | NLINES defaults to `list-matching-lines-default-context-lines'. | |
698e1804 RS |
471 | Interactively it is the prefix arg. |
472 | ||
4c53bd2b | 473 | The lines are shown in a buffer named `*Occur*'. |
698e1804 | 474 | It serves as a menu to find any of the occurrences in this buffer. |
de3c9b09 | 475 | \\<occur-mode-map>\\[describe-mode] in that buffer will explain how. |
9483d601 | 476 | |
de3c9b09 RS |
477 | If REGEXP contains upper case characters (excluding those preceded by `\\'), |
478 | the matching is case-sensitive." | |
a5dfed3e RS |
479 | (interactive |
480 | (list (let* ((default (car regexp-history)) | |
481 | (input | |
482 | (read-from-minibuffer | |
483 | (if default | |
484 | (format "List lines matching regexp (default `%s'): " | |
485 | default) | |
486 | "List lines matching regexp: ") | |
aeab5be0 | 487 | nil nil nil 'regexp-history default t))) |
4a8f3b3d RS |
488 | (and (equal input "") default |
489 | (setq input default)) | |
aeab5be0 | 490 | input) |
a5dfed3e RS |
491 | current-prefix-arg)) |
492 | (let ((nlines (if nlines | |
493 | (prefix-numeric-value nlines) | |
494 | list-matching-lines-default-context-lines)) | |
495 | (first t) | |
e09d4033 | 496 | ;;flag to prevent printing separator for first match |
8d15583f | 497 | (occur-num-matches 0) |
698e1804 | 498 | (buffer (current-buffer)) |
bdd610b2 | 499 | (dir default-directory) |
698e1804 | 500 | (linenum 1) |
e09d4033 RS |
501 | (prevpos |
502 | ;;position of most recent match | |
503 | (point-min)) | |
9483d601 RS |
504 | (case-fold-search (and case-fold-search |
505 | (isearch-no-upper-case-p regexp t))) | |
e09d4033 RS |
506 | (final-context-start |
507 | ;; Marker to the start of context immediately following | |
508 | ;; the matched text in *Occur*. | |
509 | (make-marker))) | |
99976f85 RS |
510 | ;;; (save-excursion |
511 | ;;; (beginning-of-line) | |
512 | ;;; (setq linenum (1+ (count-lines (point-min) (point)))) | |
513 | ;;; (setq prevpos (point))) | |
016c214f RS |
514 | (save-excursion |
515 | (goto-char (point-min)) | |
516 | ;; Check first whether there are any matches at all. | |
517 | (if (not (re-search-forward regexp nil t)) | |
518 | (message "No matches for `%s'" regexp) | |
519 | ;; Back up, so the search loop below will find the first match. | |
520 | (goto-char (match-beginning 0)) | |
521 | (with-output-to-temp-buffer "*Occur*" | |
522 | (save-excursion | |
523 | (set-buffer standard-output) | |
524 | (setq default-directory dir) | |
525 | ;; We will insert the number of lines, and "lines", later. | |
526 | (insert " matching ") | |
527 | (let ((print-escape-newlines t)) | |
528 | (prin1 regexp)) | |
529 | (insert " in buffer " (buffer-name buffer) ?. ?\n) | |
530 | (occur-mode) | |
531 | (setq occur-buffer buffer) | |
532 | (setq occur-nlines nlines) | |
a41284da RS |
533 | (setq occur-command-arguments |
534 | (list regexp nlines))) | |
016c214f | 535 | (if (eq buffer standard-output) |
91c6bdc0 | 536 | (goto-char (point-max))) |
016c214f RS |
537 | (save-excursion |
538 | ;; Find next match, but give up if prev match was at end of buffer. | |
539 | (while (and (not (= prevpos (point-max))) | |
540 | (re-search-forward regexp nil t)) | |
541 | (goto-char (match-beginning 0)) | |
542 | (beginning-of-line) | |
543 | (save-match-data | |
544 | (setq linenum (+ linenum (count-lines prevpos (point))))) | |
545 | (setq prevpos (point)) | |
546 | (goto-char (match-end 0)) | |
e09d4033 RS |
547 | (let* ((start |
548 | ;;start point of text in source buffer to be put | |
549 | ;;into *Occur* | |
550 | (save-excursion | |
016c214f | 551 | (goto-char (match-beginning 0)) |
e09d4033 RS |
552 | (forward-line (if (< nlines 0) |
553 | nlines | |
554 | (- nlines))) | |
016c214f | 555 | (point))) |
e09d4033 RS |
556 | (end |
557 | ;; end point of text in source buffer to be put | |
558 | ;; into *Occur* | |
559 | (save-excursion | |
560 | (goto-char (match-end 0)) | |
561 | (if (> nlines 0) | |
562 | (forward-line (1+ nlines)) | |
563 | (forward-line 1)) | |
564 | (point))) | |
565 | (match-beg | |
566 | ;; Amount of context before matching text | |
567 | (- (match-beginning 0) start)) | |
568 | (match-len | |
569 | ;; Length of matching text | |
570 | (- (match-end 0) (match-beginning 0))) | |
016c214f RS |
571 | (tag (format "%5d" linenum)) |
572 | (empty (make-string (length tag) ?\ )) | |
e09d4033 | 573 | tem |
0f0a7f7c | 574 | insertion-start |
e09d4033 RS |
575 | ;; Number of lines of context to show for current match. |
576 | occur-marker | |
577 | ;; Marker pointing to end of match in source buffer. | |
578 | (text-beg | |
579 | ;; Marker pointing to start of text for one | |
580 | ;; match in *Occur*. | |
581 | (make-marker)) | |
582 | (text-end | |
583 | ;; Marker pointing to end of text for one match | |
584 | ;; in *Occur*. | |
585 | (make-marker)) | |
8d15583f | 586 | ) |
016c214f | 587 | (save-excursion |
8d15583f RS |
588 | (setq occur-marker (make-marker)) |
589 | (set-marker occur-marker (point)) | |
016c214f | 590 | (set-buffer standard-output) |
8d15583f | 591 | (setq occur-num-matches (1+ occur-num-matches)) |
016c214f RS |
592 | (or first (zerop nlines) |
593 | (insert "--------\n")) | |
594 | (setq first nil) | |
e09d4033 RS |
595 | |
596 | ;; Insert matching text including context lines from | |
597 | ;; source buffer into *Occur* | |
8d15583f | 598 | (set-marker text-beg (point)) |
0f0a7f7c | 599 | (setq insertion-start (point)) |
016c214f | 600 | (insert-buffer-substring buffer start end) |
0f0a7f7c KH |
601 | (or (and (/= (+ start match-beg) end) |
602 | (with-current-buffer buffer | |
603 | (eq (char-before end) ?\n))) | |
604 | (insert "\n")) | |
605 | (set-marker final-context-start | |
606 | (+ (- (point) (- end (match-end 0))) | |
607 | (if (save-excursion | |
608 | (set-buffer buffer) | |
609 | (save-excursion | |
610 | (goto-char (match-end 0)) | |
611 | (end-of-line) | |
612 | (bolp))) | |
613 | 1 0))) | |
8d15583f | 614 | (set-marker text-end (point)) |
e09d4033 RS |
615 | |
616 | ;; Highlight text that was matched. | |
8d15583f RS |
617 | (if list-matching-lines-face |
618 | (put-text-property | |
619 | (+ (marker-position text-beg) match-beg) | |
620 | (+ (marker-position text-beg) match-beg match-len) | |
621 | 'face list-matching-lines-face)) | |
622 | ||
e09d4033 RS |
623 | ;; `occur-point' property is used by occur-next and |
624 | ;; occur-prev to move between matching lines. | |
8d15583f RS |
625 | (put-text-property |
626 | (+ (marker-position text-beg) match-beg match-len) | |
627 | (+ (marker-position text-beg) match-beg match-len 1) | |
628 | 'occur-point t) | |
e09d4033 RS |
629 | |
630 | ;; Now go back to the start of the matching text | |
631 | ;; adding the space and colon to the start of each line. | |
0f0a7f7c | 632 | (goto-char insertion-start) |
e09d4033 | 633 | ;; Insert space and colon for lines of context before match. |
8d15583f RS |
634 | (setq tem (if (< linenum nlines) |
635 | (- nlines linenum) | |
636 | nlines)) | |
016c214f RS |
637 | (while (> tem 0) |
638 | (insert empty ?:) | |
639 | (forward-line 1) | |
640 | (setq tem (1- tem))) | |
e09d4033 RS |
641 | |
642 | ;; Insert line number and colon for the lines of | |
643 | ;; matching text. | |
644 | (let ((this-linenum linenum)) | |
016c214f RS |
645 | (while (< (point) final-context-start) |
646 | (if (null tag) | |
647 | (setq tag (format "%5d" this-linenum))) | |
648 | (insert tag ?:) | |
016c214f RS |
649 | (forward-line 1) |
650 | (setq tag nil) | |
651 | (setq this-linenum (1+ this-linenum))) | |
0f0a7f7c | 652 | (while (and (not (eobp)) (<= (point) final-context-start)) |
016c214f RS |
653 | (insert empty ?:) |
654 | (forward-line 1) | |
655 | (setq this-linenum (1+ this-linenum)))) | |
e09d4033 RS |
656 | |
657 | ;; Insert space and colon for lines of context after match. | |
8d15583f | 658 | (while (and (< (point) (point-max)) (< tem nlines)) |
016c214f RS |
659 | (insert empty ?:) |
660 | (forward-line 1) | |
661 | (setq tem (1+ tem))) | |
8d15583f RS |
662 | |
663 | ;; Add text properties. The `occur' prop is used to | |
664 | ;; store the marker of the matching text in the | |
665 | ;; source buffer. | |
666 | (put-text-property (marker-position text-beg) | |
667 | (- (marker-position text-end) 1) | |
668 | 'mouse-face 'highlight) | |
669 | (put-text-property (marker-position text-beg) | |
e09d4033 | 670 | (marker-position text-end) |
8d15583f | 671 | 'occur occur-marker) |
016c214f RS |
672 | (goto-char (point-max))) |
673 | (forward-line 1))) | |
674 | (set-buffer standard-output) | |
e09d4033 RS |
675 | ;; Go back to top of *Occur* and finish off by printing the |
676 | ;; number of matching lines. | |
016c214f | 677 | (goto-char (point-min)) |
65b4665c | 678 | (let ((message-string |
8d15583f | 679 | (if (= occur-num-matches 1) |
65b4665c | 680 | "1 line" |
8d15583f | 681 | (format "%d lines" occur-num-matches)))) |
65b4665c RS |
682 | (insert message-string) |
683 | (if (interactive-p) | |
5ddf4bda KH |
684 | (message "%s matched" message-string))) |
685 | (setq buffer-read-only t))))))) | |
698e1804 | 686 | \f |
81bdc14d RS |
687 | ;; It would be nice to use \\[...], but there is no reasonable way |
688 | ;; to make that display both SPC and Y. | |
698e1804 RS |
689 | (defconst query-replace-help |
690 | "Type Space or `y' to replace one match, Delete or `n' to skip to next, | |
be44f62c | 691 | RET or `q' to exit, Period to replace one match and exit, |
698e1804 RS |
692 | Comma to replace but not move point immediately, |
693 | C-r to enter recursive edit (\\[exit-recursive-edit] to get out again), | |
694 | C-w to delete match and recursive edit, | |
695 | C-l to clear the screen, redisplay, and offer same replacement again, | |
696 | ! to replace all remaining matches with no more questions, | |
697 | ^ to move point back to previous match." | |
698 | "Help message while in query-replace") | |
699 | ||
81bdc14d RS |
700 | (defvar query-replace-map (make-sparse-keymap) |
701 | "Keymap that defines the responses to questions in `query-replace'. | |
702 | The \"bindings\" in this map are not commands; they are answers. | |
703 | The valid answers include `act', `skip', `act-and-show', | |
704 | `exit', `act-and-exit', `edit', `delete-and-edit', `recenter', | |
d9121bc0 | 705 | `automatic', `backup', `exit-prefix', and `help'.") |
81bdc14d RS |
706 | |
707 | (define-key query-replace-map " " 'act) | |
708 | (define-key query-replace-map "\d" 'skip) | |
709 | (define-key query-replace-map [delete] 'skip) | |
9275e5e3 | 710 | (define-key query-replace-map [backspace] 'skip) |
81bdc14d RS |
711 | (define-key query-replace-map "y" 'act) |
712 | (define-key query-replace-map "n" 'skip) | |
633a305a RS |
713 | (define-key query-replace-map "Y" 'act) |
714 | (define-key query-replace-map "N" 'skip) | |
81bdc14d | 715 | (define-key query-replace-map "," 'act-and-show) |
81bdc14d | 716 | (define-key query-replace-map "q" 'exit) |
919592c0 | 717 | (define-key query-replace-map "\r" 'exit) |
384c7da4 | 718 | (define-key query-replace-map [return] 'exit) |
81bdc14d RS |
719 | (define-key query-replace-map "." 'act-and-exit) |
720 | (define-key query-replace-map "\C-r" 'edit) | |
721 | (define-key query-replace-map "\C-w" 'delete-and-edit) | |
722 | (define-key query-replace-map "\C-l" 'recenter) | |
723 | (define-key query-replace-map "!" 'automatic) | |
724 | (define-key query-replace-map "^" 'backup) | |
725 | (define-key query-replace-map "\C-h" 'help) | |
e731045a KH |
726 | (define-key query-replace-map [f1] 'help) |
727 | (define-key query-replace-map [help] 'help) | |
81bdc14d | 728 | (define-key query-replace-map "?" 'help) |
bc6312e1 RS |
729 | (define-key query-replace-map "\C-g" 'quit) |
730 | (define-key query-replace-map "\C-]" 'quit) | |
d9121bc0 RS |
731 | (define-key query-replace-map "\e" 'exit-prefix) |
732 | (define-key query-replace-map [escape] 'exit-prefix) | |
81bdc14d | 733 | |
84482eb3 RS |
734 | (defun replace-match-string-symbols (n) |
735 | ;; Process a list (and any sub-lists), expanding certain symbols: | |
736 | ;; Symbol Expands To | |
737 | ;; N (match-string N) (where N is a string of digits) | |
738 | ;; #N (string-to-number (match-string N)) | |
739 | ;; & (match-string 0) | |
740 | ;; #& (string-to-number (match-string 0)) | |
741 | ;; | |
742 | ;; Note that these symbols must be preceeded by a backslash in order to | |
743 | ;; type them. | |
744 | (while n | |
745 | (cond | |
746 | ((consp (car n)) | |
747 | (replace-match-string-symbols (car n))) ;Process sub-list | |
748 | ((symbolp (car n)) | |
749 | (let ((name (symbol-name (car n)))) | |
750 | (cond | |
751 | ((string-match "^[0-9]+$" name) | |
752 | (setcar n (list 'match-string (string-to-number name)))) | |
753 | ((string-match "^#[0-9]+$" name) | |
754 | (setcar n (list 'string-to-number | |
755 | (list 'match-string | |
756 | (string-to-number (substring name 1)))))) | |
757 | ((string= "&" name) | |
758 | (setcar n '(match-string 0))) | |
759 | ((string= "#&" name) | |
760 | (setcar n '(string-to-number (match-string 0)))))))) | |
761 | (setq n (cdr n)))) | |
762 | ||
763 | (defun replace-eval-replacement (expression replace-count) | |
764 | (let ((replacement (eval expression))) | |
765 | (if (stringp replacement) | |
766 | replacement | |
767 | (prin1-to-string replacement t)))) | |
768 | ||
769 | (defun replace-loop-through-replacements (data replace-count) | |
770 | ;; DATA is a vector contaning the following values: | |
771 | ;; 0 next-rotate-count | |
772 | ;; 1 repeat-count | |
773 | ;; 2 next-replacement | |
774 | ;; 3 replacements | |
775 | (if (= (aref data 0) replace-count) | |
776 | (progn | |
777 | (aset data 0 (+ replace-count (aref data 1))) | |
778 | (let ((next (cdr (aref data 2)))) | |
779 | (aset data 2 (if (consp next) next (aref data 3)))))) | |
780 | (car (aref data 2))) | |
781 | ||
698e1804 RS |
782 | (defun perform-replace (from-string replacements |
783 | query-flag regexp-flag delimited-flag | |
81bdc14d | 784 | &optional repeat-count map) |
698e1804 RS |
785 | "Subroutine of `query-replace'. Its complexity handles interactive queries. |
786 | Don't use this in your own program unless you want to query and set the mark | |
787 | just as `query-replace' does. Instead, write a simple loop like this: | |
788 | (while (re-search-forward \"foo[ \t]+bar\" nil t) | |
789 | (replace-match \"foobar\" nil nil)) | |
e782e9f2 | 790 | which will run faster and probably do exactly what you want." |
81bdc14d | 791 | (or map (setq map query-replace-map)) |
1c1dadab RS |
792 | (and query-flag minibuffer-auto-raise |
793 | (raise-frame (window-frame (minibuffer-window)))) | |
698e1804 RS |
794 | (let ((nocasify (not (and case-fold-search case-replace |
795 | (string-equal from-string | |
796 | (downcase from-string))))) | |
5a78b471 KH |
797 | (case-fold-search (and case-fold-search |
798 | (string-equal from-string | |
799 | (downcase from-string)))) | |
698e1804 RS |
800 | (literal (not regexp-flag)) |
801 | (search-function (if regexp-flag 're-search-forward 'search-forward)) | |
802 | (search-string from-string) | |
e5d77022 | 803 | (real-match-data nil) ; the match data for the current match |
698e1804 | 804 | (next-replacement nil) |
698e1804 RS |
805 | (keep-going t) |
806 | (stack nil) | |
698e1804 | 807 | (replace-count 0) |
5632eb27 PE |
808 | (nonempty-match nil) |
809 | ||
7ef5c431 KH |
810 | ;; If non-nil, it is marker saying where in the buffer to stop. |
811 | (limit nil) | |
812 | ||
5632eb27 PE |
813 | ;; Data for the next match. If a cons, it has the same format as |
814 | ;; (match-data); otherwise it is t if a match is possible at point. | |
ae4eb03c | 815 | (match-again t) |
5632eb27 | 816 | |
02d95a27 RS |
817 | (message |
818 | (if query-flag | |
819 | (substitute-command-keys | |
820 | "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) ")))) | |
7ef5c431 KH |
821 | |
822 | ;; If region is active, in Transient Mark mode, operate on region. | |
823 | (if (and transient-mark-mode mark-active) | |
824 | (progn | |
825 | (setq limit (copy-marker (region-end))) | |
826 | (goto-char (region-beginning)) | |
827 | (deactivate-mark))) | |
84482eb3 RS |
828 | |
829 | ;; REPLACEMENTS is either a string, a list of strings, or a cons cell | |
830 | ;; containing a function and its first argument. The function is | |
831 | ;; called to generate each replacement like this: | |
832 | ;; (funcall (car replacements) (cdr replacements) replace-count) | |
833 | ;; It must return a string. | |
834 | (cond | |
835 | ((stringp replacements) | |
836 | (setq next-replacement replacements | |
837 | replacements nil)) | |
838 | ((stringp (car replacements)) ; If it isn't a string, it must be a cons | |
839 | (or repeat-count (setq repeat-count 1)) | |
840 | (setq replacements (cons 'replace-loop-through-replacements | |
841 | (vector repeat-count repeat-count | |
842 | replacements replacements))))) | |
843 | ||
698e1804 RS |
844 | (if delimited-flag |
845 | (setq search-function 're-search-forward | |
846 | search-string (concat "\\b" | |
847 | (if regexp-flag from-string | |
848 | (regexp-quote from-string)) | |
849 | "\\b"))) | |
850 | (push-mark) | |
851 | (undo-boundary) | |
e782e9f2 RS |
852 | (unwind-protect |
853 | ;; Loop finding occurrences that perhaps should be replaced. | |
854 | (while (and keep-going | |
855 | (not (eobp)) | |
5632eb27 PE |
856 | ;; Use the next match if it is already known; |
857 | ;; otherwise, search for a match after moving forward | |
858 | ;; one char if progress is required. | |
859 | (setq real-match-data | |
860 | (if (consp match-again) | |
861 | (progn (goto-char (nth 1 match-again)) | |
862 | match-again) | |
863 | (and (or match-again | |
864 | (progn | |
865 | (forward-char 1) | |
866 | (not (eobp)))) | |
7ef5c431 | 867 | (funcall search-function search-string limit t) |
5632eb27 PE |
868 | ;; For speed, use only integers and |
869 | ;; reuse the list used last time. | |
870 | (match-data t real-match-data))))) | |
871 | ||
872 | ;; Record whether the match is nonempty, to avoid an infinite loop | |
873 | ;; repeatedly matching the same empty string. | |
874 | (setq nonempty-match | |
875 | (/= (nth 0 real-match-data) (nth 1 real-match-data))) | |
876 | ||
877 | ;; If the match is empty, record that the next one can't be adjacent. | |
878 | ;; Otherwise, if matching a regular expression, do the next | |
879 | ;; match now, since the replacement for this match may | |
880 | ;; affect whether the next match is adjacent to this one. | |
881 | (setq match-again | |
882 | (and nonempty-match | |
883 | (or (not regexp-flag) | |
884 | (and (looking-at search-string) | |
937ab68f | 885 | (match-data))))) |
5632eb27 | 886 | |
84482eb3 RS |
887 | ;; Calculate the replacement string, if necessary. |
888 | (when replacements | |
889 | (set-match-data real-match-data) | |
890 | (setq next-replacement | |
891 | (funcall (car replacements) (cdr replacements) | |
892 | replace-count))) | |
e782e9f2 RS |
893 | (if (not query-flag) |
894 | (progn | |
ef4aaf5f | 895 | (set-match-data real-match-data) |
e782e9f2 RS |
896 | (replace-match next-replacement nocasify literal) |
897 | (setq replace-count (1+ replace-count))) | |
898 | (undo-boundary) | |
899 | (let (done replaced key def) | |
900 | ;; Loop reading commands until one of them sets done, | |
901 | ;; which means it has finished handling this occurrence. | |
902 | (while (not done) | |
ef4aaf5f | 903 | (set-match-data real-match-data) |
e782e9f2 | 904 | (replace-highlight (match-beginning 0) (match-end 0)) |
c006b215 KH |
905 | ;; Bind message-log-max so we don't fill up the message log |
906 | ;; with a bunch of identical messages. | |
907 | (let ((message-log-max nil)) | |
908 | (message message from-string next-replacement)) | |
e782e9f2 | 909 | (setq key (read-event)) |
f5e52cd3 RS |
910 | ;; Necessary in case something happens during read-event |
911 | ;; that clobbers the match data. | |
ef4aaf5f | 912 | (set-match-data real-match-data) |
e782e9f2 RS |
913 | (setq key (vector key)) |
914 | (setq def (lookup-key map key)) | |
915 | ;; Restore the match data while we process the command. | |
e782e9f2 RS |
916 | (cond ((eq def 'help) |
917 | (with-output-to-temp-buffer "*Help*" | |
918 | (princ | |
919 | (concat "Query replacing " | |
920 | (if regexp-flag "regexp " "") | |
921 | from-string " with " | |
922 | next-replacement ".\n\n" | |
923 | (substitute-command-keys | |
b905ac33 KH |
924 | query-replace-help))) |
925 | (save-excursion | |
926 | (set-buffer standard-output) | |
927 | (help-mode)))) | |
e782e9f2 RS |
928 | ((eq def 'exit) |
929 | (setq keep-going nil) | |
930 | (setq done t)) | |
931 | ((eq def 'backup) | |
237e6ab0 KH |
932 | (if stack |
933 | (let ((elt (car stack))) | |
934 | (goto-char (car elt)) | |
935 | (setq replaced (eq t (cdr elt))) | |
936 | (or replaced | |
ef4aaf5f | 937 | (set-match-data (cdr elt))) |
237e6ab0 KH |
938 | (setq stack (cdr stack))) |
939 | (message "No previous match") | |
940 | (ding 'no-terminate) | |
941 | (sit-for 1))) | |
e782e9f2 RS |
942 | ((eq def 'act) |
943 | (or replaced | |
3043b0b4 RS |
944 | (progn |
945 | (replace-match next-replacement nocasify literal) | |
946 | (setq replace-count (1+ replace-count)))) | |
e782e9f2 RS |
947 | (setq done t replaced t)) |
948 | ((eq def 'act-and-exit) | |
949 | (or replaced | |
3043b0b4 RS |
950 | (progn |
951 | (replace-match next-replacement nocasify literal) | |
952 | (setq replace-count (1+ replace-count)))) | |
e782e9f2 RS |
953 | (setq keep-going nil) |
954 | (setq done t replaced t)) | |
955 | ((eq def 'act-and-show) | |
956 | (if (not replaced) | |
957 | (progn | |
958 | (replace-match next-replacement nocasify literal) | |
3043b0b4 | 959 | (setq replace-count (1+ replace-count)) |
e782e9f2 RS |
960 | (setq replaced t)))) |
961 | ((eq def 'automatic) | |
962 | (or replaced | |
3043b0b4 RS |
963 | (progn |
964 | (replace-match next-replacement nocasify literal) | |
965 | (setq replace-count (1+ replace-count)))) | |
e782e9f2 RS |
966 | (setq done t query-flag nil replaced t)) |
967 | ((eq def 'skip) | |
968 | (setq done t)) | |
969 | ((eq def 'recenter) | |
970 | (recenter nil)) | |
971 | ((eq def 'edit) | |
596235d6 KH |
972 | (let ((opos (point-marker))) |
973 | (goto-char (match-beginning 0)) | |
974 | (save-excursion | |
975 | (funcall search-function search-string limit t) | |
976 | (setq real-match-data (match-data))) | |
977 | (save-excursion (recursive-edit)) | |
978 | (goto-char opos)) | |
a9c4c78a | 979 | (set-match-data real-match-data) |
ae4eb03c RS |
980 | ;; Before we make the replacement, |
981 | ;; decide whether the search string | |
982 | ;; can match again just after this match. | |
5632eb27 PE |
983 | (if (and regexp-flag nonempty-match) |
984 | (setq match-again (and (looking-at search-string) | |
937ab68f | 985 | (match-data))))) |
e782e9f2 RS |
986 | ((eq def 'delete-and-edit) |
987 | (delete-region (match-beginning 0) (match-end 0)) | |
ef4aaf5f | 988 | (set-match-data |
e782e9f2 RS |
989 | (prog1 (match-data) |
990 | (save-excursion (recursive-edit)))) | |
991 | (setq replaced t)) | |
d9121bc0 RS |
992 | ;; Note: we do not need to treat `exit-prefix' |
993 | ;; specially here, since we reread | |
994 | ;; any unrecognized character. | |
e782e9f2 | 995 | (t |
d9121bc0 | 996 | (setq this-command 'mode-exited) |
e782e9f2 RS |
997 | (setq keep-going nil) |
998 | (setq unread-command-events | |
999 | (append (listify-key-sequence key) | |
1000 | unread-command-events)) | |
1001 | (setq done t)))) | |
1002 | ;; Record previous position for ^ when we move on. | |
1003 | ;; Change markers to numbers in the match data | |
1004 | ;; since lots of markers slow down editing. | |
1005 | (setq stack | |
1006 | (cons (cons (point) | |
141aa68c | 1007 | (or replaced (match-data t))) |
5632eb27 | 1008 | stack))))) |
e782e9f2 | 1009 | (replace-dehighlight)) |
4d33492a RS |
1010 | (or unread-command-events |
1011 | (message "Replaced %d occurrence%s" | |
1012 | replace-count | |
1013 | (if (= replace-count 1) "" "s"))) | |
1014 | (and keep-going stack))) | |
698e1804 | 1015 | |
95807e68 | 1016 | (defcustom query-replace-highlight t |
9d325ebf RS |
1017 | "*Non-nil means to highlight words during query replacement." |
1018 | :type 'boolean | |
1019 | :group 'matching) | |
e782e9f2 RS |
1020 | |
1021 | (defvar replace-overlay nil) | |
1022 | ||
1023 | (defun replace-dehighlight () | |
1024 | (and replace-overlay | |
1025 | (progn | |
1026 | (delete-overlay replace-overlay) | |
1027 | (setq replace-overlay nil)))) | |
1028 | ||
1029 | (defun replace-highlight (start end) | |
1030 | (and query-replace-highlight | |
1031 | (progn | |
1032 | (or replace-overlay | |
1033 | (progn | |
1034 | (setq replace-overlay (make-overlay start end)) | |
1035 | (overlay-put replace-overlay 'face | |
1036 | (if (internal-find-face 'query-replace) | |
1037 | 'query-replace 'region)))) | |
1038 | (move-overlay replace-overlay start end (current-buffer))))) | |
1039 | ||
c88ab9ce | 1040 | ;;; replace.el ends here |