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60370d40 | 1 | ;;; replace.el --- replace commands for Emacs |
c88ab9ce | 2 | |
2f57bf85 DK |
3 | ;; Copyright (C) 1985, 86, 87, 92, 94, 96, 1997, 2000, 2001, 2002, |
4 | ;; 2003, 2004 Free Software Foundation, Inc. | |
3a801d0c | 5 | |
30764597 PJ |
6 | ;; Maintainer: FSF |
7 | ||
698e1804 RS |
8 | ;; This file is part of GNU Emacs. |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
e5d77022 | 12 | ;; the Free Software Foundation; either version 2, or (at your option) |
698e1804 RS |
13 | ;; any later version. |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
698e1804 | 24 | |
d9ecc911 ER |
25 | ;;; Commentary: |
26 | ||
27 | ;; This package supplies the string and regular-expression replace functions | |
28 | ;; documented in the Emacs user's manual. | |
29 | ||
4f4b8eff | 30 | ;;; Code: |
698e1804 | 31 | |
9d325ebf | 32 | (defcustom case-replace t |
f54701d1 | 33 | "*Non-nil means `query-replace' should preserve case in replacements." |
9d325ebf RS |
34 | :type 'boolean |
35 | :group 'matching) | |
77176e73 | 36 | |
770970cb RS |
37 | (defvar query-replace-history nil) |
38 | ||
1f3ade4f | 39 | (defcustom query-replace-interactive nil |
151270f3 | 40 | "Non-nil means `query-replace' uses the last search string. |
1f3ade4f LT |
41 | That becomes the \"string to replace\"." |
42 | :type 'boolean | |
43 | :group 'matching) | |
151270f3 | 44 | |
bdb1c08f | 45 | (defcustom query-replace-from-history-variable 'query-replace-history |
f54701d1 | 46 | "History list to use for the FROM argument of `query-replace' commands. |
bdb1c08f RS |
47 | The value of this variable should be a symbol; that symbol |
48 | is used as a variable to hold a history list for the strings | |
49 | or patterns to be replaced." | |
50 | :group 'matching | |
cd32a7ba DN |
51 | :type 'symbol |
52 | :version "20.3") | |
bdb1c08f RS |
53 | |
54 | (defcustom query-replace-to-history-variable 'query-replace-history | |
f54701d1 | 55 | "History list to use for the TO argument of `query-replace' commands. |
bdb1c08f RS |
56 | The value of this variable should be a symbol; that symbol |
57 | is used as a variable to hold a history list for replacement | |
58 | strings or patterns." | |
59 | :group 'matching | |
cd32a7ba DN |
60 | :type 'symbol |
61 | :version "20.3") | |
bdb1c08f | 62 | |
1c4fe319 RS |
63 | (defcustom query-replace-skip-read-only nil |
64 | "*Non-nil means `query-replace' and friends ignore read-only matches." | |
65 | :type 'boolean | |
66 | :group 'matching | |
89e7ad59 | 67 | :version "21.4") |
1c4fe319 | 68 | |
86914dcc RS |
69 | (defun query-replace-read-args (string regexp-flag &optional noerror) |
70 | (unless noerror | |
71 | (barf-if-buffer-read-only)) | |
770970cb | 72 | (let (from to) |
151270f3 RS |
73 | (if query-replace-interactive |
74 | (setq from (car (if regexp-flag regexp-search-ring search-ring))) | |
2f2f7e58 RS |
75 | ;; The save-excursion here is in case the user marks and copies |
76 | ;; a region in order to specify the minibuffer input. | |
77 | ;; That should not clobber the region for the query-replace itself. | |
78 | (save-excursion | |
79 | (setq from (read-from-minibuffer (format "%s: " string) | |
80 | nil nil nil | |
81 | query-replace-from-history-variable | |
82 | nil t))) | |
d9291fa3 | 83 | ;; Warn if user types \n or \t, but don't reject the input. |
2f57bf85 DK |
84 | (and regexp-flag |
85 | (string-match "\\(\\`\\|[^\\]\\)\\(\\\\\\\\\\)*\\(\\\\[nt]\\)" from) | |
86 | (let ((match (match-string 3 from))) | |
87 | (cond | |
88 | ((string= match "\\n") | |
89 | (message "Note: `\\n' here doesn't match a newline; to do that, type C-q C-j instead")) | |
90 | ((string= match "\\t") | |
91 | (message "Note: `\\t' here doesn't match a tab; to do that, just type TAB"))) | |
92 | (sit-for 2)))) | |
d9291fa3 | 93 | |
2f2f7e58 RS |
94 | (save-excursion |
95 | (setq to (read-from-minibuffer (format "%s %s with: " string from) | |
96 | nil nil nil | |
97 | query-replace-to-history-variable from t))) | |
7c1c02ac DK |
98 | (when (and regexp-flag |
99 | (string-match "\\(\\`\\|[^\\]\\)\\(\\\\\\\\\\)*\\\\[,#]" to)) | |
100 | (let (pos list char) | |
101 | (while | |
102 | (progn | |
103 | (setq pos (match-end 0)) | |
104 | (push (substring to 0 (- pos 2)) list) | |
105 | (setq char (aref to (1- pos)) | |
106 | to (substring to pos)) | |
107 | (cond ((eq char ?\#) | |
108 | (push '(number-to-string replace-count) list)) | |
109 | ((eq char ?\,) | |
110 | (setq pos (read-from-string to)) | |
111 | (push `(replace-quote ,(car pos)) list) | |
da6eb51c JL |
112 | (setq to (substring |
113 | to (+ (cdr pos) | |
114 | ;; Swallow a space after a symbol | |
115 | ;; if there is a space. | |
116 | (if (string-match | |
117 | "^[^])\"] " | |
118 | (substring to (1- (cdr pos)))) | |
119 | 1 0)))))) | |
7c1c02ac DK |
120 | (string-match "\\(\\`\\|[^\\]\\)\\(\\\\\\\\\\)*\\\\[,#]" to))) |
121 | (setq to (nreverse (delete "" (cons to list))))) | |
122 | (replace-match-string-symbols to) | |
da6eb51c | 123 | (setq to (cons 'replace-eval-replacement |
7c1c02ac DK |
124 | (if (> (length to) 1) |
125 | (cons 'concat to) | |
126 | (car to))))) | |
10784bac | 127 | (list from to current-prefix-arg))) |
770970cb | 128 | |
47d72254 | 129 | (defun query-replace (from-string to-string &optional delimited start end) |
da44e784 RM |
130 | "Replace some occurrences of FROM-STRING with TO-STRING. |
131 | As each match is found, the user must type a character saying | |
132 | what to do with it. For directions, type \\[help-command] at that time. | |
133 | ||
7ef5c431 KH |
134 | In Transient Mark mode, if the mark is active, operate on the contents |
135 | of the region. Otherwise, operate from point to the end of the buffer. | |
136 | ||
151270f3 RS |
137 | If `query-replace-interactive' is non-nil, the last incremental search |
138 | string is used as FROM-STRING--you don't have to specify it with the | |
139 | minibuffer. | |
140 | ||
446d9629 RS |
141 | Matching is independent of case if `case-fold-search' is non-nil and |
142 | FROM-STRING has no uppercase letters. Replacement transfers the case | |
143 | pattern of the old text to the new text, if `case-replace' and | |
144 | `case-fold-search' are non-nil and FROM-STRING has no uppercase | |
145 | letters. \(Transferring the case pattern means that if the old text | |
146 | matched is all caps, or capitalized, then its replacement is upcased | |
147 | or capitalized.) | |
9b0bf2b6 | 148 | |
118a01c9 | 149 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
81bdc14d | 150 | only matches surrounded by word boundaries. |
47d72254 | 151 | Fourth and fifth arg START and END specify the region to operate on. |
81bdc14d RS |
152 | |
153 | To customize possible responses, change the \"bindings\" in `query-replace-map'." | |
10784bac RS |
154 | (interactive (let ((common |
155 | (query-replace-read-args "Query replace" nil))) | |
156 | (list (nth 0 common) (nth 1 common) (nth 2 common) | |
157 | ;; These are done separately here | |
158 | ;; so that command-history will record these expressions | |
159 | ;; rather than the values they had this time. | |
160 | (if (and transient-mark-mode mark-active) | |
161 | (region-beginning)) | |
162 | (if (and transient-mark-mode mark-active) | |
163 | (region-end))))) | |
99a7559f | 164 | (perform-replace from-string to-string t nil delimited nil nil start end)) |
7ef5c431 | 165 | |
73fa8346 | 166 | (define-key esc-map "%" 'query-replace) |
da44e784 | 167 | |
47d72254 | 168 | (defun query-replace-regexp (regexp to-string &optional delimited start end) |
da44e784 RM |
169 | "Replace some things after point matching REGEXP with TO-STRING. |
170 | As each match is found, the user must type a character saying | |
171 | what to do with it. For directions, type \\[help-command] at that time. | |
172 | ||
7ef5c431 KH |
173 | In Transient Mark mode, if the mark is active, operate on the contents |
174 | of the region. Otherwise, operate from point to the end of the buffer. | |
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 | |
178 | minibuffer. | |
179 | ||
446d9629 RS |
180 | Matching is independent of case if `case-fold-search' is non-nil and |
181 | REGEXP has no uppercase letters. Replacement transfers the case | |
182 | pattern of the old text to the new text, if `case-replace' and | |
183 | `case-fold-search' are non-nil and REGEXP has no uppercase letters. | |
184 | \(Transferring the case pattern means that if the old text matched is | |
185 | all caps, or capitalized, then its replacement is upcased or | |
186 | capitalized.) | |
47d72254 | 187 | |
118a01c9 | 188 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 189 | only matches surrounded by word boundaries. |
47d72254 GM |
190 | Fourth and fifth arg START and END specify the region to operate on. |
191 | ||
118a01c9 RS |
192 | In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, |
193 | and `\\=\\N' (where N is a digit) stands for | |
2f57bf85 | 194 | whatever what matched the Nth `\\(...\\)' in REGEXP. |
7c1c02ac DK |
195 | `\\?' lets you edit the replacement text in the minibuffer |
196 | at the given position for each replacement. | |
197 | ||
ba8d15f9 RS |
198 | In interactive calls, the replacement text can contain `\\,' |
199 | followed by a Lisp expression. Each | |
200 | replacement evaluates that expression to compute the replacement | |
201 | string. Inside of that expression, `\\&' is a string denoting the | |
202 | whole match as a sting, `\\N' for a partial match, `\\#&' and `\\#N' | |
203 | for the whole or a partial match converted to a number with | |
204 | `string-to-number', and `\\#' itself for the number of replacements | |
205 | done so far (starting with zero). | |
7c1c02ac | 206 | |
ba8d15f9 RS |
207 | If the replacement expression is a symbol, write a space after it |
208 | to terminate it. One space there, if any, will be discarded. | |
7c1c02ac DK |
209 | |
210 | When using those Lisp features interactively in the replacement | |
211 | text, TO-STRING is actually made a list instead of a string. | |
212 | Use \\[repeat-complex-command] after this command for details." | |
10784bac RS |
213 | (interactive |
214 | (let ((common | |
215 | (query-replace-read-args "Query replace regexp" t))) | |
7c1c02ac DK |
216 | (list (nth 0 common) (nth 1 common) (nth 2 common) |
217 | ;; These are done separately here | |
218 | ;; so that command-history will record these expressions | |
219 | ;; rather than the values they had this time. | |
220 | (if (and transient-mark-mode mark-active) | |
221 | (region-beginning)) | |
222 | (if (and transient-mark-mode mark-active) | |
223 | (region-end))))) | |
99a7559f | 224 | (perform-replace regexp to-string t t delimited nil nil start end)) |
2f57bf85 | 225 | |
cbc127de | 226 | (define-key esc-map [?\C-%] 'query-replace-regexp) |
da44e784 | 227 | |
47d72254 | 228 | (defun query-replace-regexp-eval (regexp to-expr &optional delimited start end) |
84482eb3 RS |
229 | "Replace some things after point matching REGEXP with the result of TO-EXPR. |
230 | As each match is found, the user must type a character saying | |
231 | what to do with it. For directions, type \\[help-command] at that time. | |
232 | ||
233 | TO-EXPR is a Lisp expression evaluated to compute each replacement. It may | |
234 | reference `replace-count' to get the number of replacements already made. | |
235 | If the result of TO-EXPR is not a string, it is converted to one using | |
236 | `prin1-to-string' with the NOESCAPE argument (which see). | |
237 | ||
238 | For convenience, when entering TO-EXPR interactively, you can use `\\&' or | |
653479ad AS |
239 | `\\0' to stand for whatever matched the whole of REGEXP, and `\\N' (where |
240 | N is a digit) to stand for whatever matched the Nth `\\(...\\)' in REGEXP. | |
84482eb3 | 241 | Use `\\#&' or `\\#N' if you want a number instead of a string. |
2f57bf85 | 242 | In interactive use, `\\#' in itself stands for `replace-count'. |
84482eb3 RS |
243 | |
244 | In Transient Mark mode, if the mark is active, operate on the contents | |
245 | of the region. Otherwise, operate from point to the end of the buffer. | |
246 | ||
247 | If `query-replace-interactive' is non-nil, the last incremental search | |
248 | regexp is used as REGEXP--you don't have to specify it with the | |
249 | minibuffer. | |
250 | ||
251 | Preserves case in each replacement if `case-replace' and `case-fold-search' | |
252 | are non-nil and REGEXP has no uppercase letters. | |
47d72254 | 253 | |
84482eb3 | 254 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
470bbe9b | 255 | only matches that are surrounded by word boundaries. |
47d72254 | 256 | Fourth and fifth arg START and END specify the region to operate on." |
84482eb3 | 257 | (interactive |
10784bac | 258 | (let (from to) |
84482eb3 RS |
259 | (if query-replace-interactive |
260 | (setq from (car regexp-search-ring)) | |
261 | (setq from (read-from-minibuffer "Query replace regexp: " | |
262 | nil nil nil | |
263 | query-replace-from-history-variable | |
264 | nil t))) | |
265 | (setq to (list (read-from-minibuffer | |
266 | (format "Query replace regexp %s with eval: " from) | |
267 | nil nil t query-replace-to-history-variable from t))) | |
268 | ;; We make TO a list because replace-match-string-symbols requires one, | |
269 | ;; and the user might enter a single token. | |
270 | (replace-match-string-symbols to) | |
10784bac RS |
271 | (list from (car to) current-prefix-arg |
272 | (if (and transient-mark-mode mark-active) | |
273 | (region-beginning)) | |
274 | (if (and transient-mark-mode mark-active) | |
275 | (region-end))))) | |
d2ce3151 | 276 | (perform-replace regexp (cons 'replace-eval-replacement to-expr) |
d83a97ab | 277 | t 'literal delimited nil nil start end)) |
84482eb3 | 278 | |
47d72254 | 279 | (defun map-query-replace-regexp (regexp to-strings &optional n start end) |
da44e784 | 280 | "Replace some matches for REGEXP with various strings, in rotation. |
e730be7f DL |
281 | The second argument TO-STRINGS contains the replacement strings, |
282 | separated by spaces. Third arg DELIMITED (prefix arg if interactive), | |
283 | if non-nil, means replace only matches surrounded by word boundaries. | |
284 | This command works like `query-replace-regexp' except that each | |
285 | successive replacement uses the next successive replacement string, | |
da44e784 RM |
286 | wrapping around from the last such string to the first. |
287 | ||
7ef5c431 KH |
288 | In Transient Mark mode, if the mark is active, operate on the contents |
289 | of the region. Otherwise, operate from point to the end of the buffer. | |
290 | ||
da44e784 RM |
291 | Non-interactively, TO-STRINGS may be a list of replacement strings. |
292 | ||
151270f3 RS |
293 | If `query-replace-interactive' is non-nil, the last incremental search |
294 | regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
295 | ||
da44e784 | 296 | A prefix argument N says to use each replacement string N times |
47d72254 GM |
297 | before rotating to the next. |
298 | Fourth and fifth arg START and END specify the region to operate on." | |
770970cb | 299 | (interactive |
10784bac | 300 | (let (from to) |
151270f3 RS |
301 | (setq from (if query-replace-interactive |
302 | (car regexp-search-ring) | |
303 | (read-from-minibuffer "Map query replace (regexp): " | |
304 | nil nil nil | |
fce31d51 | 305 | 'query-replace-history nil t))) |
770970cb RS |
306 | (setq to (read-from-minibuffer |
307 | (format "Query replace %s with (space-separated strings): " | |
308 | from) | |
309 | nil nil nil | |
4a8f3b3d | 310 | 'query-replace-history from t)) |
2f2f7e58 RS |
311 | (list from to |
312 | (and current-prefix-arg | |
313 | (prefix-numeric-value current-prefix-arg)) | |
10784bac RS |
314 | (if (and transient-mark-mode mark-active) |
315 | (region-beginning)) | |
316 | (if (and transient-mark-mode mark-active) | |
317 | (region-end))))) | |
da44e784 RM |
318 | (let (replacements) |
319 | (if (listp to-strings) | |
320 | (setq replacements to-strings) | |
321 | (while (/= (length to-strings) 0) | |
322 | (if (string-match " " to-strings) | |
323 | (setq replacements | |
324 | (append replacements | |
325 | (list (substring to-strings 0 | |
326 | (string-match " " to-strings)))) | |
327 | to-strings (substring to-strings | |
328 | (1+ (string-match " " to-strings)))) | |
329 | (setq replacements (append replacements (list to-strings)) | |
330 | to-strings "")))) | |
99a7559f | 331 | (perform-replace regexp replacements t t nil n nil start end))) |
da44e784 | 332 | |
47d72254 | 333 | (defun replace-string (from-string to-string &optional delimited start end) |
da44e784 RM |
334 | "Replace occurrences of FROM-STRING with TO-STRING. |
335 | Preserve case in each match if `case-replace' and `case-fold-search' | |
336 | are non-nil and FROM-STRING has no uppercase letters. | |
9b0bf2b6 RS |
337 | \(Preserving case means that if the string matched is all caps, or capitalized, |
338 | then its replacement is upcased or capitalized.) | |
339 | ||
7ef5c431 KH |
340 | In Transient Mark mode, if the mark is active, operate on the contents |
341 | of the region. Otherwise, operate from point to the end of the buffer. | |
342 | ||
118a01c9 | 343 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 344 | only matches surrounded by word boundaries. |
47d72254 | 345 | Fourth and fifth arg START and END specify the region to operate on. |
da44e784 | 346 | |
151270f3 RS |
347 | If `query-replace-interactive' is non-nil, the last incremental search |
348 | string is used as FROM-STRING--you don't have to specify it with the | |
349 | minibuffer. | |
350 | ||
da44e784 RM |
351 | This function is usually the wrong thing to use in a Lisp program. |
352 | What you probably want is a loop like this: | |
118a01c9 RS |
353 | (while (search-forward FROM-STRING nil t) |
354 | (replace-match TO-STRING nil t)) | |
87532fbe RS |
355 | which will run faster and will not set the mark or print anything. |
356 | \(You may need a more complex loop if FROM-STRING can match the null string | |
357 | and TO-STRING is also null.)" | |
10784bac RS |
358 | (interactive |
359 | (let ((common | |
360 | (query-replace-read-args "Replace string" nil))) | |
361 | (list (nth 0 common) (nth 1 common) (nth 2 common) | |
362 | (if (and transient-mark-mode mark-active) | |
363 | (region-beginning)) | |
364 | (if (and transient-mark-mode mark-active) | |
365 | (region-end))))) | |
99a7559f | 366 | (perform-replace from-string to-string nil nil delimited nil nil start end)) |
da44e784 | 367 | |
47d72254 | 368 | (defun replace-regexp (regexp to-string &optional delimited start end) |
da44e784 | 369 | "Replace things after point matching REGEXP with TO-STRING. |
118a01c9 | 370 | Preserve case in each match if `case-replace' and `case-fold-search' |
da44e784 | 371 | are non-nil and REGEXP has no uppercase letters. |
47d72254 GM |
372 | |
373 | In Transient Mark mode, if the mark is active, operate on the contents | |
374 | of the region. Otherwise, operate from point to the end of the buffer. | |
375 | ||
118a01c9 | 376 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 377 | only matches surrounded by word boundaries. |
47d72254 GM |
378 | Fourth and fifth arg START and END specify the region to operate on. |
379 | ||
118a01c9 RS |
380 | In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, |
381 | and `\\=\\N' (where N is a digit) stands for | |
7c1c02ac DK |
382 | whatever what matched the Nth `\\(...\\)' in REGEXP. |
383 | `\\?' lets you edit the replacement text in the minibuffer | |
384 | at the given position for each replacement. | |
385 | ||
386 | In interactive calls, the replacement text may contain `\\,' | |
387 | followed by a Lisp expression used as part of the replacement | |
388 | text. Inside of that expression, `\\&' is a string denoting the | |
389 | whole match, `\\N' a partial matches, `\\#&' and `\\#N' the | |
390 | respective numeric values from `string-to-number', and `\\#' | |
391 | itself for `replace-count', the number of replacements occured so | |
392 | far. | |
393 | ||
394 | If your Lisp expression is an identifier and the next letter in | |
395 | the replacement string would be interpreted as part of it, you | |
396 | can wrap it with an expression like `\\,(or \\#)'. Incidentally, | |
397 | for this particular case you may also enter `\\#' in the | |
398 | replacement text directly. | |
399 | ||
400 | When using those Lisp features interactively in the replacement | |
401 | text, TO-STRING is actually made a list instead of a string. | |
402 | Use \\[repeat-complex-command] after this command for details. | |
da44e784 | 403 | |
151270f3 RS |
404 | If `query-replace-interactive' is non-nil, the last incremental search |
405 | regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
406 | ||
da44e784 RM |
407 | This function is usually the wrong thing to use in a Lisp program. |
408 | What you probably want is a loop like this: | |
409 | (while (re-search-forward REGEXP nil t) | |
118a01c9 | 410 | (replace-match TO-STRING nil nil)) |
da44e784 | 411 | which will run faster and will not set the mark or print anything." |
10784bac RS |
412 | (interactive |
413 | (let ((common | |
414 | (query-replace-read-args "Replace regexp" t))) | |
415 | (list (nth 0 common) (nth 1 common) (nth 2 common) | |
416 | (if (and transient-mark-mode mark-active) | |
417 | (region-beginning)) | |
418 | (if (and transient-mark-mode mark-active) | |
419 | (region-end))))) | |
99a7559f | 420 | (perform-replace regexp to-string nil t delimited nil nil start end)) |
e32eb3e6 | 421 | |
4c53bd2b RS |
422 | \f |
423 | (defvar regexp-history nil | |
424 | "History list for some commands that read regular expressions.") | |
da44e784 | 425 | |
e32eb3e6 | 426 | |
31e1d920 | 427 | (defalias 'delete-non-matching-lines 'keep-lines) |
e32eb3e6 GM |
428 | (defalias 'delete-matching-lines 'flush-lines) |
429 | (defalias 'count-matches 'how-many) | |
430 | ||
431 | ||
432 | (defun keep-lines-read-args (prompt) | |
433 | "Read arguments for `keep-lines' and friends. | |
434 | Prompt for a regexp with PROMPT. | |
2ced751f RS |
435 | Value is a list, (REGEXP)." |
436 | (list (read-from-minibuffer prompt nil nil nil | |
437 | 'regexp-history nil t))) | |
e32eb3e6 GM |
438 | |
439 | (defun keep-lines (regexp &optional rstart rend) | |
698e1804 RS |
440 | "Delete all lines except those containing matches for REGEXP. |
441 | A match split across lines preserves all the lines it lies in. | |
d2a0ee8b RS |
442 | Applies to all lines after point. |
443 | ||
444 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
e32eb3e6 GM |
445 | the matching is case-sensitive. |
446 | ||
447 | Second and third arg RSTART and REND specify the region to operate on. | |
448 | ||
2ced751f RS |
449 | Interactively, in Transient Mark mode when the mark is active, operate |
450 | on the contents of the region. Otherwise, operate from point to the | |
451 | end of the buffer." | |
452 | ||
e32eb3e6 | 453 | (interactive |
98faf1bb RS |
454 | (progn |
455 | (barf-if-buffer-read-only) | |
456 | (keep-lines-read-args "Keep lines (containing match for regexp): "))) | |
e32eb3e6 | 457 | (if rstart |
119831da RS |
458 | (progn |
459 | (goto-char (min rstart rend)) | |
460 | (setq rend (copy-marker (max rstart rend)))) | |
2ced751f RS |
461 | (if (and transient-mark-mode mark-active) |
462 | (setq rstart (region-beginning) | |
463 | rend (copy-marker (region-end))) | |
464 | (setq rstart (point) | |
465 | rend (point-max-marker))) | |
466 | (goto-char rstart)) | |
698e1804 RS |
467 | (save-excursion |
468 | (or (bolp) (forward-line 1)) | |
d2a0ee8b RS |
469 | (let ((start (point)) |
470 | (case-fold-search (and case-fold-search | |
471 | (isearch-no-upper-case-p regexp t)))) | |
e32eb3e6 | 472 | (while (< (point) rend) |
698e1804 | 473 | ;; Start is first char not preserved by previous match. |
e32eb3e6 GM |
474 | (if (not (re-search-forward regexp rend 'move)) |
475 | (delete-region start rend) | |
698e1804 RS |
476 | (let ((end (save-excursion (goto-char (match-beginning 0)) |
477 | (beginning-of-line) | |
478 | (point)))) | |
479 | ;; Now end is first char preserved by the new match. | |
480 | (if (< start end) | |
481 | (delete-region start end)))) | |
d99118b0 | 482 | |
e32eb3e6 | 483 | (setq start (save-excursion (forward-line 1) (point))) |
698e1804 | 484 | ;; If the match was empty, avoid matching again at same place. |
e32eb3e6 GM |
485 | (and (< (point) rend) |
486 | (= (match-beginning 0) (match-end 0)) | |
698e1804 RS |
487 | (forward-char 1)))))) |
488 | ||
e32eb3e6 GM |
489 | |
490 | (defun flush-lines (regexp &optional rstart rend) | |
698e1804 RS |
491 | "Delete lines containing matches for REGEXP. |
492 | If a match is split across lines, all the lines it lies in are deleted. | |
d2a0ee8b RS |
493 | Applies to lines after point. |
494 | ||
495 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
e32eb3e6 GM |
496 | the matching is case-sensitive. |
497 | ||
498 | Second and third arg RSTART and REND specify the region to operate on. | |
499 | ||
2ced751f RS |
500 | Interactively, in Transient Mark mode when the mark is active, operate |
501 | on the contents of the region. Otherwise, operate from point to the | |
502 | end of the buffer." | |
503 | ||
e32eb3e6 | 504 | (interactive |
98faf1bb RS |
505 | (progn |
506 | (barf-if-buffer-read-only) | |
507 | (keep-lines-read-args "Flush lines (containing match for regexp): "))) | |
e32eb3e6 | 508 | (if rstart |
119831da RS |
509 | (progn |
510 | (goto-char (min rstart rend)) | |
511 | (setq rend (copy-marker (max rstart rend)))) | |
2ced751f RS |
512 | (if (and transient-mark-mode mark-active) |
513 | (setq rstart (region-beginning) | |
514 | rend (copy-marker (region-end))) | |
515 | (setq rstart (point) | |
516 | rend (point-max-marker))) | |
517 | (goto-char rstart)) | |
d2a0ee8b RS |
518 | (let ((case-fold-search (and case-fold-search |
519 | (isearch-no-upper-case-p regexp t)))) | |
520 | (save-excursion | |
e32eb3e6 GM |
521 | (while (and (< (point) rend) |
522 | (re-search-forward regexp rend t)) | |
d2a0ee8b RS |
523 | (delete-region (save-excursion (goto-char (match-beginning 0)) |
524 | (beginning-of-line) | |
525 | (point)) | |
526 | (progn (forward-line 1) (point))))))) | |
698e1804 | 527 | |
e32eb3e6 GM |
528 | |
529 | (defun how-many (regexp &optional rstart rend) | |
d2a0ee8b RS |
530 | "Print number of matches for REGEXP following point. |
531 | ||
532 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
e32eb3e6 GM |
533 | the matching is case-sensitive. |
534 | ||
535 | Second and third arg RSTART and REND specify the region to operate on. | |
536 | ||
2ced751f RS |
537 | Interactively, in Transient Mark mode when the mark is active, operate |
538 | on the contents of the region. Otherwise, operate from point to the | |
539 | end of the buffer." | |
540 | ||
e32eb3e6 GM |
541 | (interactive |
542 | (keep-lines-read-args "How many matches for (regexp): ")) | |
f601efb0 SM |
543 | (save-excursion |
544 | (if rstart | |
545 | (goto-char (min rstart rend)) | |
2ced751f RS |
546 | (if (and transient-mark-mode mark-active) |
547 | (setq rstart (region-beginning) | |
548 | rend (copy-marker (region-end))) | |
549 | (setq rstart (point) | |
550 | rend (point-max-marker))) | |
551 | (goto-char rstart)) | |
f601efb0 SM |
552 | (let ((count 0) |
553 | opoint | |
554 | (case-fold-search (and case-fold-search | |
555 | (isearch-no-upper-case-p regexp t)))) | |
556 | (while (and (< (point) rend) | |
557 | (progn (setq opoint (point)) | |
558 | (re-search-forward regexp rend t))) | |
559 | (if (= opoint (point)) | |
560 | (forward-char 1) | |
561 | (setq count (1+ count)))) | |
562 | (message "%d occurrences" count)))) | |
e32eb3e6 | 563 | |
4c53bd2b | 564 | \f |
f601efb0 SM |
565 | (defvar occur-mode-map |
566 | (let ((map (make-sparse-keymap))) | |
567 | (define-key map [mouse-2] 'occur-mode-mouse-goto) | |
568 | (define-key map "\C-c\C-c" 'occur-mode-goto-occurrence) | |
569 | (define-key map "\C-m" 'occur-mode-goto-occurrence) | |
daae70bf | 570 | (define-key map "o" 'occur-mode-goto-occurrence-other-window) |
365486d6 | 571 | (define-key map "\C-o" 'occur-mode-display-occurrence) |
f601efb0 SM |
572 | (define-key map "\M-n" 'occur-next) |
573 | (define-key map "\M-p" 'occur-prev) | |
d99118b0 SS |
574 | (define-key map "r" 'occur-rename-buffer) |
575 | (define-key map "c" 'clone-buffer) | |
f601efb0 | 576 | (define-key map "g" 'revert-buffer) |
d99118b0 SS |
577 | (define-key map "q" 'quit-window) |
578 | (define-key map "z" 'kill-this-buffer) | |
f601efb0 SM |
579 | map) |
580 | "Keymap for `occur-mode'.") | |
698e1804 | 581 | |
46b3d18e RS |
582 | (defvar occur-revert-arguments nil |
583 | "Arguments to pass to `occur-1' to revert an Occur mode buffer. | |
584 | See `occur-revert-function'.") | |
698e1804 | 585 | |
c9ae8cbb JB |
586 | (defcustom occur-mode-hook '(turn-on-font-lock) |
587 | "Hook run when entering Occur mode." | |
588 | :type 'hook | |
589 | :group 'matching) | |
590 | ||
591 | (defcustom occur-hook nil | |
592 | "Hook run when `occur' is called." | |
daae70bf CW |
593 | :type 'hook |
594 | :group 'matching) | |
595 | ||
de3c9b09 | 596 | (put 'occur-mode 'mode-class 'special) |
505847d4 | 597 | (defun occur-mode () |
698e1804 | 598 | "Major mode for output from \\[occur]. |
0081c8a1 RS |
599 | \\<occur-mode-map>Move point to one of the items in this buffer, then use |
600 | \\[occur-mode-goto-occurrence] to go to the occurrence that the item refers to. | |
601 | Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it. | |
602 | ||
698e1804 | 603 | \\{occur-mode-map}" |
ce8b7b9f | 604 | (interactive) |
505847d4 RS |
605 | (kill-all-local-variables) |
606 | (use-local-map occur-mode-map) | |
607 | (setq major-mode 'occur-mode) | |
608 | (setq mode-name "Occur") | |
f601efb0 | 609 | (set (make-local-variable 'revert-buffer-function) 'occur-revert-function) |
c9ae8cbb | 610 | (make-local-variable 'occur-revert-arguments) |
fbefbe33 | 611 | (add-hook 'change-major-mode-hook 'font-lock-defontify nil t) |
423e4de7 | 612 | (setq next-error-function 'occur-next-error) |
c9ae8cbb | 613 | (run-hooks 'occur-mode-hook)) |
698e1804 | 614 | |
a41284da | 615 | (defun occur-revert-function (ignore1 ignore2) |
46b3d18e | 616 | "Handle `revert-buffer' for Occur mode buffers." |
e1690783 | 617 | (apply 'occur-1 (append occur-revert-arguments (list (buffer-name))))) |
a41284da | 618 | |
78bead73 RS |
619 | (defun occur-mode-mouse-goto (event) |
620 | "In Occur mode, go to the occurrence whose line you click on." | |
621 | (interactive "e") | |
46b3d18e | 622 | (let (pos) |
78bead73 RS |
623 | (save-excursion |
624 | (set-buffer (window-buffer (posn-window (event-end event)))) | |
625 | (save-excursion | |
626 | (goto-char (posn-point (event-end event))) | |
46b3d18e RS |
627 | (setq pos (occur-mode-find-occurrence)))) |
628 | (pop-to-buffer (marker-buffer pos)) | |
629 | (goto-char pos))) | |
78bead73 RS |
630 | |
631 | (defun occur-mode-find-occurrence () | |
46b3d18e RS |
632 | (let ((pos (get-text-property (point) 'occur-target))) |
633 | (unless pos | |
68608d9c | 634 | (error "No occurrence on this line")) |
46b3d18e RS |
635 | (unless (buffer-live-p (marker-buffer pos)) |
636 | (error "Buffer for this occurrence was killed")) | |
637 | pos)) | |
78bead73 RS |
638 | |
639 | (defun occur-mode-goto-occurrence () | |
640 | "Go to the occurrence the current line describes." | |
641 | (interactive) | |
46b3d18e RS |
642 | (let ((pos (occur-mode-find-occurrence))) |
643 | (pop-to-buffer (marker-buffer pos)) | |
644 | (goto-char pos))) | |
8d15583f | 645 | |
029024e2 RS |
646 | (defun occur-mode-goto-occurrence-other-window () |
647 | "Go to the occurrence the current line describes, in another window." | |
648 | (interactive) | |
46b3d18e RS |
649 | (let ((pos (occur-mode-find-occurrence))) |
650 | (switch-to-buffer-other-window (marker-buffer pos)) | |
651 | (goto-char pos))) | |
029024e2 | 652 | |
365486d6 RS |
653 | (defun occur-mode-display-occurrence () |
654 | "Display in another window the occurrence the current line describes." | |
655 | (interactive) | |
46b3d18e RS |
656 | (let ((pos (occur-mode-find-occurrence)) |
657 | window | |
658 | ;; Bind these to ensure `display-buffer' puts it in another window. | |
365486d6 | 659 | same-window-buffer-names |
46b3d18e RS |
660 | same-window-regexps) |
661 | (setq window (display-buffer (marker-buffer pos))) | |
365486d6 RS |
662 | ;; This is the way to set point in the proper window. |
663 | (save-selected-window | |
664 | (select-window window) | |
46b3d18e | 665 | (goto-char pos)))) |
365486d6 | 666 | |
123d5548 | 667 | (defun occur-find-match (n search message) |
8d15583f RS |
668 | (if (not n) (setq n 1)) |
669 | (let ((r)) | |
670 | (while (> n 0) | |
123d5548 JB |
671 | (setq r (funcall search (point) 'occur-match)) |
672 | (and r | |
673 | (get-text-property r 'occur-match) | |
674 | (setq r (funcall search r 'occur-match))) | |
8d15583f | 675 | (if r |
123d5548 JB |
676 | (goto-char r) |
677 | (error message)) | |
8d15583f RS |
678 | (setq n (1- n))))) |
679 | ||
123d5548 JB |
680 | (defun occur-next (&optional n) |
681 | "Move to the Nth (default 1) next match in an Occur mode buffer." | |
682 | (interactive "p") | |
683 | (occur-find-match n #'next-single-property-change "No more matches")) | |
684 | ||
8d15583f | 685 | (defun occur-prev (&optional n) |
46b3d18e | 686 | "Move to the Nth (default 1) previous match in an Occur mode buffer." |
8d15583f | 687 | (interactive "p") |
123d5548 | 688 | (occur-find-match n #'previous-single-property-change "No earlier matches")) |
423e4de7 KS |
689 | |
690 | (defun occur-next-error (&optional argp reset) | |
691 | "Move to the Nth (default 1) next match in an Occur mode buffer. | |
692 | Compatibility function for \\[next-error] invocations." | |
693 | (interactive "p") | |
694 | (when reset | |
695 | (occur-find-match 0 #'next-single-property-change "No first match")) | |
696 | (occur-find-match | |
697 | (prefix-numeric-value argp) | |
698 | (if (> 0 (prefix-numeric-value argp)) | |
699 | #'previous-single-property-change | |
700 | #'next-single-property-change) | |
701 | "No more matches") | |
702 | (occur-mode-goto-occurrence)) | |
703 | ||
4c53bd2b | 704 | \f |
9d325ebf | 705 | (defcustom list-matching-lines-default-context-lines 0 |
e730be7f DL |
706 | "*Default number of context lines included around `list-matching-lines' matches. |
707 | A negative number means to include that many lines before the match. | |
9d325ebf RS |
708 | A positive number means to include that many lines both before and after." |
709 | :type 'integer | |
710 | :group 'matching) | |
698e1804 | 711 | |
31e1d920 | 712 | (defalias 'list-matching-lines 'occur) |
698e1804 | 713 | |
68608d9c | 714 | (defcustom list-matching-lines-face 'bold |
e730be7f | 715 | "*Face used by \\[list-matching-lines] to show the text that matches. |
68608d9c CW |
716 | If the value is nil, don't highlight the matching portions specially." |
717 | :type 'face | |
718 | :group 'matching) | |
719 | ||
720 | (defcustom list-matching-lines-buffer-name-face 'underline | |
721 | "*Face used by \\[list-matching-lines] to show the names of buffers. | |
722 | If the value is nil, don't highlight the buffer names specially." | |
723 | :type 'face | |
724 | :group 'matching) | |
725 | ||
9e2b2e30 | 726 | (defun occur-accumulate-lines (count &optional no-props) |
68608d9c CW |
727 | (save-excursion |
728 | (let ((forwardp (> count 0)) | |
729 | (result nil)) | |
730 | (while (not (or (zerop count) | |
731 | (if forwardp | |
732 | (eobp) | |
733 | (bobp)))) | |
b0523087 | 734 | (setq count (+ count (if forwardp -1 1))) |
68608d9c | 735 | (push |
9e2b2e30 CW |
736 | (funcall (if no-props |
737 | #'buffer-substring-no-properties | |
738 | #'buffer-substring) | |
68608d9c CW |
739 | (line-beginning-position) |
740 | (line-end-position)) | |
741 | result) | |
742 | (forward-line (if forwardp 1 -1))) | |
743 | (nreverse result)))) | |
744 | ||
745 | (defun occur-read-primary-args () | |
746 | (list (let* ((default (car regexp-history)) | |
747 | (input | |
748 | (read-from-minibuffer | |
749 | (if default | |
750 | (format "List lines matching regexp (default `%s'): " | |
751 | default) | |
752 | "List lines matching regexp: ") | |
753 | nil | |
754 | nil | |
755 | nil | |
756 | 'regexp-history))) | |
757 | (if (equal input "") | |
758 | default | |
759 | input)) | |
bda1925e CW |
760 | (when current-prefix-arg |
761 | (prefix-numeric-value current-prefix-arg)))) | |
c9daced0 | 762 | |
d99118b0 SS |
763 | (defun occur-rename-buffer (&optional unique-p) |
764 | "Rename the current *Occur* buffer to *Occur: original-buffer-name*. | |
765 | Here `original-buffer-name' is the buffer name were occur was originally run. | |
766 | When given the prefix argument, the renaming will not clobber the existing | |
767 | buffer(s) of that name, but use `generate-new-buffer-name' instead. | |
2fb79329 | 768 | You can add this to `occur-hook' if you always want a separate *Occur* |
d99118b0 SS |
769 | buffer for each buffer where you invoke `occur'." |
770 | (interactive "P") | |
771 | (with-current-buffer | |
772 | (if (eq major-mode 'occur-mode) (current-buffer) (get-buffer "*Occur*")) | |
773 | (rename-buffer (concat "*Occur: " | |
774 | (mapconcat #'buffer-name | |
775 | (car (cddr occur-revert-arguments)) "/") | |
776 | "*") | |
777 | unique-p))) | |
778 | ||
698e1804 | 779 | (defun occur (regexp &optional nlines) |
99976f85 | 780 | "Show all lines in the current buffer containing a match for REGEXP. |
da44e784 RM |
781 | |
782 | If a match spreads across multiple lines, all those lines are shown. | |
698e1804 | 783 | |
da44e784 RM |
784 | Each line is displayed with NLINES lines before and after, or -NLINES |
785 | before if NLINES is negative. | |
786 | NLINES defaults to `list-matching-lines-default-context-lines'. | |
698e1804 RS |
787 | Interactively it is the prefix arg. |
788 | ||
4c53bd2b | 789 | The lines are shown in a buffer named `*Occur*'. |
698e1804 | 790 | It serves as a menu to find any of the occurrences in this buffer. |
de3c9b09 | 791 | \\<occur-mode-map>\\[describe-mode] in that buffer will explain how. |
9483d601 | 792 | |
de3c9b09 RS |
793 | If REGEXP contains upper case characters (excluding those preceded by `\\'), |
794 | the matching is case-sensitive." | |
68608d9c CW |
795 | (interactive (occur-read-primary-args)) |
796 | (occur-1 regexp nlines (list (current-buffer)))) | |
797 | ||
798 | (defun multi-occur (bufs regexp &optional nlines) | |
799 | "Show all lines in buffers BUFS containing a match for REGEXP. | |
800 | This function acts on multiple buffers; otherwise, it is exactly like | |
801 | `occur'." | |
a5dfed3e | 802 | (interactive |
68608d9c | 803 | (cons |
52698d45 KS |
804 | (let* ((bufs (list (read-buffer "First buffer to search: " |
805 | (current-buffer) t))) | |
806 | (buf nil) | |
807 | (ido-ignore-item-temp-list bufs)) | |
68608d9c | 808 | (while (not (string-equal |
f1180544 | 809 | (setq buf (read-buffer |
52698d45 KS |
810 | (if (eq read-buffer-function 'ido-read-buffer) |
811 | "Next buffer to search (C-j to end): " | |
812 | "Next buffer to search (RET to end): ") | |
813 | nil t)) | |
68608d9c | 814 | "")) |
52698d45 KS |
815 | (add-to-list 'bufs buf) |
816 | (setq ido-ignore-item-temp-list bufs)) | |
68608d9c CW |
817 | (nreverse (mapcar #'get-buffer bufs))) |
818 | (occur-read-primary-args))) | |
819 | (occur-1 regexp nlines bufs)) | |
820 | ||
821 | (defun multi-occur-by-filename-regexp (bufregexp regexp &optional nlines) | |
04fe158a | 822 | "Show all lines matching REGEXP in buffers named by BUFREGEXP. |
68608d9c CW |
823 | See also `multi-occur'." |
824 | (interactive | |
825 | (cons | |
826 | (let* ((default (car regexp-history)) | |
827 | (input | |
828 | (read-from-minibuffer | |
829 | "List lines in buffers whose filename matches regexp: " | |
830 | nil | |
831 | nil | |
832 | nil | |
833 | 'regexp-history))) | |
834 | (if (equal input "") | |
835 | default | |
836 | input)) | |
837 | (occur-read-primary-args))) | |
838 | (when bufregexp | |
839 | (occur-1 regexp nlines | |
840 | (delq nil | |
841 | (mapcar (lambda (buf) | |
842 | (when (and (buffer-file-name buf) | |
843 | (string-match bufregexp | |
844 | (buffer-file-name buf))) | |
845 | buf)) | |
846 | (buffer-list)))))) | |
847 | ||
e1690783 CW |
848 | (defun occur-1 (regexp nlines bufs &optional buf-name) |
849 | (unless buf-name | |
850 | (setq buf-name "*Occur*")) | |
851 | (let ((occur-buf (get-buffer-create buf-name)) | |
70ed2a76 CW |
852 | (made-temp-buf nil) |
853 | (active-bufs (delq nil (mapcar #'(lambda (buf) | |
854 | (when (buffer-live-p buf) buf)) | |
855 | bufs)))) | |
856 | ;; Handle the case where one of the buffers we're searching is the | |
857 | ;; *Occur* buffer itself. | |
858 | (when (memq occur-buf bufs) | |
859 | (setq occur-buf (with-current-buffer occur-buf | |
860 | (clone-buffer "*Occur-temp*")) | |
861 | made-temp-buf t)) | |
68608d9c CW |
862 | (with-current-buffer occur-buf |
863 | (setq buffer-read-only nil) | |
864 | (occur-mode) | |
865 | (erase-buffer) | |
866 | (let ((count (occur-engine | |
70ed2a76 | 867 | regexp active-bufs occur-buf |
68608d9c CW |
868 | (or nlines list-matching-lines-default-context-lines) |
869 | (and case-fold-search | |
870 | (isearch-no-upper-case-p regexp t)) | |
506a6d7e CW |
871 | list-matching-lines-buffer-name-face |
872 | nil list-matching-lines-face nil))) | |
b2043e7b AS |
873 | (let* ((bufcount (length active-bufs)) |
874 | (diff (- (length bufs) bufcount))) | |
875 | (message "Searched %d buffer%s%s; %s match%s for `%s'" | |
876 | bufcount (if (= bufcount 1) "" "s") | |
877 | (if (zerop diff) "" (format " (%d killed)" diff)) | |
878 | (if (zerop count) "no" (format "%d" count)) | |
879 | (if (= count 1) "" "es") | |
880 | regexp)) | |
70ed2a76 CW |
881 | ;; If we had to make a temporary buffer, make it the *Occur* |
882 | ;; buffer now. | |
883 | (when made-temp-buf | |
e1690783 CW |
884 | (with-current-buffer (get-buffer buf-name) |
885 | (kill-buffer (current-buffer))) | |
886 | (rename-buffer buf-name)) | |
70ed2a76 CW |
887 | (setq occur-revert-arguments (list regexp nlines bufs) |
888 | buffer-read-only t) | |
68608d9c | 889 | (if (> count 0) |
423e4de7 KS |
890 | (progn |
891 | (display-buffer occur-buf) | |
892 | (setq next-error-last-buffer occur-buf)) | |
2fb79329 JB |
893 | (kill-buffer occur-buf))) |
894 | (run-hooks 'occur-hook)))) | |
68608d9c | 895 | |
46b3d18e RS |
896 | (defun occur-engine-add-prefix (lines) |
897 | (mapcar | |
898 | #'(lambda (line) | |
261cca88 | 899 | (concat " :" line "\n")) |
46b3d18e RS |
900 | lines)) |
901 | ||
902 | (defun occur-engine (regexp buffers out-buf nlines case-fold-search | |
903 | title-face prefix-face match-face keep-props) | |
904 | (with-current-buffer out-buf | |
905 | (setq buffer-read-only nil) | |
5cb4031d KH |
906 | (let ((globalcount 0) |
907 | (coding nil)) | |
46b3d18e RS |
908 | ;; Map over all the buffers |
909 | (dolist (buf buffers) | |
910 | (when (buffer-live-p buf) | |
911 | (let ((matches 0) ;; count of matched lines | |
912 | (lines 1) ;; line count | |
913 | (matchbeg 0) | |
914 | (matchend 0) | |
915 | (origpt nil) | |
916 | (begpt nil) | |
917 | (endpt nil) | |
918 | (marker nil) | |
919 | (curstring "") | |
920 | (headerpt (with-current-buffer out-buf (point)))) | |
921 | (save-excursion | |
922 | (set-buffer buf) | |
5cb4031d KH |
923 | (or coding |
924 | ;; Set CODING only if the current buffer locally | |
925 | ;; binds buffer-file-coding-system. | |
926 | (not (local-variable-p 'buffer-file-coding-system)) | |
927 | (setq coding buffer-file-coding-system)) | |
68608d9c | 928 | (save-excursion |
46b3d18e RS |
929 | (goto-char (point-min)) ;; begin searching in the buffer |
930 | (while (not (eobp)) | |
931 | (setq origpt (point)) | |
932 | (when (setq endpt (re-search-forward regexp nil t)) | |
933 | (setq matches (1+ matches)) ;; increment match count | |
46b3d18e RS |
934 | (setq matchbeg (match-beginning 0) |
935 | matchend (match-end 0)) | |
936 | (setq begpt (save-excursion | |
937 | (goto-char matchbeg) | |
938 | (line-beginning-position))) | |
939 | (setq lines (+ lines (1- (count-lines origpt endpt)))) | |
940 | (setq marker (make-marker)) | |
941 | (set-marker marker matchbeg) | |
942 | (setq curstring (buffer-substring begpt | |
943 | (line-end-position))) | |
944 | ;; Depropertize the string, and maybe | |
945 | ;; highlight the matches | |
946 | (let ((len (length curstring)) | |
947 | (start 0)) | |
948 | (unless keep-props | |
949 | (set-text-properties 0 len nil curstring)) | |
950 | (while (and (< start len) | |
951 | (string-match regexp curstring start)) | |
952 | (add-text-properties (match-beginning 0) | |
953 | (match-end 0) | |
954 | (append | |
506a6d7e | 955 | `(occur-match t) |
46b3d18e | 956 | (when match-face |
506a6d7e | 957 | `(font-lock-face ,match-face))) |
46b3d18e RS |
958 | curstring) |
959 | (setq start (match-end 0)))) | |
960 | ;; Generate the string to insert for this match | |
961 | (let* ((out-line | |
962 | (concat | |
261cca88 RS |
963 | ;; Using 7 digits aligns tabs properly. |
964 | (apply #'propertize (format "%7d:" lines) | |
46b3d18e RS |
965 | (append |
966 | (when prefix-face | |
506a6d7e | 967 | `(font-lock-face prefix-face)) |
46b3d18e RS |
968 | '(occur-prefix t))) |
969 | curstring | |
970 | "\n")) | |
971 | (data | |
972 | (if (= nlines 0) | |
973 | ;; The simple display style | |
974 | out-line | |
975 | ;; The complex multi-line display | |
976 | ;; style. Generate a list of lines, | |
977 | ;; concatenate them all together. | |
978 | (apply #'concat | |
979 | (nconc | |
b0523087 | 980 | (occur-engine-add-prefix (nreverse (cdr (occur-accumulate-lines (- (1+ nlines)) keep-props)))) |
46b3d18e | 981 | (list out-line) |
b0523087 | 982 | (occur-engine-add-prefix (cdr (occur-accumulate-lines (1+ nlines) keep-props)))))))) |
46b3d18e RS |
983 | ;; Actually insert the match display data |
984 | (with-current-buffer out-buf | |
985 | (let ((beg (point)) | |
986 | (end (progn (insert data) (point)))) | |
987 | (unless (= nlines 0) | |
988 | (insert "-------\n")) | |
989 | (add-text-properties | |
e8e2a88c CW |
990 | beg end |
991 | `(occur-target ,marker help-echo "mouse-2: go to this occurrence")) | |
992 | ;; We don't put `mouse-face' on the newline, | |
993 | ;; because that loses. | |
994 | (add-text-properties beg (1- end) '(mouse-face highlight))))) | |
46b3d18e | 995 | (goto-char endpt)) |
e1690783 CW |
996 | (if endpt |
997 | (progn | |
998 | (setq lines (1+ lines)) | |
999 | ;; On to the next match... | |
1000 | (forward-line 1)) | |
1001 | (goto-char (point-max)))))) | |
46b3d18e | 1002 | (when (not (zerop matches)) ;; is the count zero? |
daae70bf | 1003 | (setq globalcount (+ globalcount matches)) |
46b3d18e RS |
1004 | (with-current-buffer out-buf |
1005 | (goto-char headerpt) | |
1006 | (let ((beg (point)) | |
1007 | end) | |
dbed3cd3 JPW |
1008 | (insert (format "%d match%s for \"%s\" in buffer: %s\n" |
1009 | matches (if (= matches 1) "" "es") | |
1010 | regexp (buffer-name buf))) | |
46b3d18e RS |
1011 | (setq end (point)) |
1012 | (add-text-properties beg end | |
1013 | (append | |
1014 | (when title-face | |
506a6d7e CW |
1015 | `(font-lock-face ,title-face)) |
1016 | `(occur-title ,buf)))) | |
46b3d18e | 1017 | (goto-char (point-min))))))) |
5cb4031d KH |
1018 | (if coding |
1019 | ;; CODING is buffer-file-coding-system of the first buffer | |
1020 | ;; that locally binds it. Let's use it also for the output | |
1021 | ;; buffer. | |
1022 | (set-buffer-file-coding-system coding)) | |
46b3d18e RS |
1023 | ;; Return the number of matches |
1024 | globalcount))) | |
68608d9c | 1025 | |
698e1804 | 1026 | \f |
81bdc14d RS |
1027 | ;; It would be nice to use \\[...], but there is no reasonable way |
1028 | ;; to make that display both SPC and Y. | |
698e1804 RS |
1029 | (defconst query-replace-help |
1030 | "Type Space or `y' to replace one match, Delete or `n' to skip to next, | |
be44f62c | 1031 | RET or `q' to exit, Period to replace one match and exit, |
698e1804 RS |
1032 | Comma to replace but not move point immediately, |
1033 | C-r to enter recursive edit (\\[exit-recursive-edit] to get out again), | |
1034 | C-w to delete match and recursive edit, | |
1035 | C-l to clear the screen, redisplay, and offer same replacement again, | |
1036 | ! to replace all remaining matches with no more questions, | |
7ce278f3 GM |
1037 | ^ to move point back to previous match, |
1038 | E to edit the replacement string" | |
f54701d1 | 1039 | "Help message while in `query-replace'.") |
698e1804 | 1040 | |
81bdc14d RS |
1041 | (defvar query-replace-map (make-sparse-keymap) |
1042 | "Keymap that defines the responses to questions in `query-replace'. | |
1043 | The \"bindings\" in this map are not commands; they are answers. | |
1044 | The valid answers include `act', `skip', `act-and-show', | |
1045 | `exit', `act-and-exit', `edit', `delete-and-edit', `recenter', | |
d9121bc0 | 1046 | `automatic', `backup', `exit-prefix', and `help'.") |
81bdc14d RS |
1047 | |
1048 | (define-key query-replace-map " " 'act) | |
1049 | (define-key query-replace-map "\d" 'skip) | |
1050 | (define-key query-replace-map [delete] 'skip) | |
9275e5e3 | 1051 | (define-key query-replace-map [backspace] 'skip) |
81bdc14d RS |
1052 | (define-key query-replace-map "y" 'act) |
1053 | (define-key query-replace-map "n" 'skip) | |
633a305a RS |
1054 | (define-key query-replace-map "Y" 'act) |
1055 | (define-key query-replace-map "N" 'skip) | |
34724fcb | 1056 | (define-key query-replace-map "e" 'edit-replacement) |
7ce278f3 | 1057 | (define-key query-replace-map "E" 'edit-replacement) |
81bdc14d | 1058 | (define-key query-replace-map "," 'act-and-show) |
81bdc14d | 1059 | (define-key query-replace-map "q" 'exit) |
919592c0 | 1060 | (define-key query-replace-map "\r" 'exit) |
384c7da4 | 1061 | (define-key query-replace-map [return] 'exit) |
81bdc14d RS |
1062 | (define-key query-replace-map "." 'act-and-exit) |
1063 | (define-key query-replace-map "\C-r" 'edit) | |
1064 | (define-key query-replace-map "\C-w" 'delete-and-edit) | |
1065 | (define-key query-replace-map "\C-l" 'recenter) | |
1066 | (define-key query-replace-map "!" 'automatic) | |
1067 | (define-key query-replace-map "^" 'backup) | |
1068 | (define-key query-replace-map "\C-h" 'help) | |
e731045a KH |
1069 | (define-key query-replace-map [f1] 'help) |
1070 | (define-key query-replace-map [help] 'help) | |
81bdc14d | 1071 | (define-key query-replace-map "?" 'help) |
bc6312e1 RS |
1072 | (define-key query-replace-map "\C-g" 'quit) |
1073 | (define-key query-replace-map "\C-]" 'quit) | |
d9121bc0 RS |
1074 | (define-key query-replace-map "\e" 'exit-prefix) |
1075 | (define-key query-replace-map [escape] 'exit-prefix) | |
81bdc14d | 1076 | |
84482eb3 | 1077 | (defun replace-match-string-symbols (n) |
e730be7f DL |
1078 | "Process a list (and any sub-lists), expanding certain symbols. |
1079 | Symbol Expands To | |
1080 | N (match-string N) (where N is a string of digits) | |
1081 | #N (string-to-number (match-string N)) | |
1082 | & (match-string 0) | |
1083 | #& (string-to-number (match-string 0)) | |
2f57bf85 | 1084 | # replace-count |
e730be7f DL |
1085 | |
1086 | Note that these symbols must be preceeded by a backslash in order to | |
1087 | type them." | |
84482eb3 RS |
1088 | (while n |
1089 | (cond | |
1090 | ((consp (car n)) | |
1091 | (replace-match-string-symbols (car n))) ;Process sub-list | |
1092 | ((symbolp (car n)) | |
1093 | (let ((name (symbol-name (car n)))) | |
1094 | (cond | |
1095 | ((string-match "^[0-9]+$" name) | |
1096 | (setcar n (list 'match-string (string-to-number name)))) | |
1097 | ((string-match "^#[0-9]+$" name) | |
1098 | (setcar n (list 'string-to-number | |
1099 | (list 'match-string | |
1100 | (string-to-number (substring name 1)))))) | |
1101 | ((string= "&" name) | |
1102 | (setcar n '(match-string 0))) | |
1103 | ((string= "#&" name) | |
2f57bf85 DK |
1104 | (setcar n '(string-to-number (match-string 0)))) |
1105 | ((string= "#" name) | |
1106 | (setcar n 'replace-count)))))) | |
84482eb3 RS |
1107 | (setq n (cdr n)))) |
1108 | ||
1109 | (defun replace-eval-replacement (expression replace-count) | |
1110 | (let ((replacement (eval expression))) | |
1111 | (if (stringp replacement) | |
1112 | replacement | |
1113 | (prin1-to-string replacement t)))) | |
1114 | ||
2f57bf85 DK |
1115 | (defun replace-quote (replacement) |
1116 | "Quote a replacement string. | |
1117 | This just doubles all backslashes in REPLACEMENT and | |
1118 | returns the resulting string. If REPLACEMENT is not | |
1119 | a string, it is first passed through `prin1-to-string' | |
1120 | with the `noescape' argument set. | |
1121 | ||
1122 | `match-data' is preserved across the call." | |
1123 | (save-match-data | |
1124 | (replace-regexp-in-string "\\\\" "\\\\" | |
1125 | (if (stringp replacement) | |
1126 | replacement | |
1127 | (prin1-to-string replacement t)) | |
1128 | t t))) | |
1129 | ||
84482eb3 RS |
1130 | (defun replace-loop-through-replacements (data replace-count) |
1131 | ;; DATA is a vector contaning the following values: | |
1132 | ;; 0 next-rotate-count | |
1133 | ;; 1 repeat-count | |
1134 | ;; 2 next-replacement | |
1135 | ;; 3 replacements | |
1136 | (if (= (aref data 0) replace-count) | |
1137 | (progn | |
1138 | (aset data 0 (+ replace-count (aref data 1))) | |
1139 | (let ((next (cdr (aref data 2)))) | |
1140 | (aset data 2 (if (consp next) next (aref data 3)))))) | |
1141 | (car (aref data 2))) | |
1142 | ||
7c1c02ac DK |
1143 | (defun replace-match-data (integers reuse &optional new) |
1144 | "Like `match-data', but markers in REUSE get invalidated. | |
1145 | If NEW is non-NIL, it is set and returned instead of fresh data, | |
1146 | but coerced to the correct value of INTEGERS." | |
1147 | (or (and new | |
1148 | (progn | |
1149 | (set-match-data new) | |
1150 | (and (eq new reuse) | |
1151 | (eq (null integers) (markerp (car reuse))) | |
1152 | new))) | |
1153 | (match-data integers | |
1154 | (prog1 reuse | |
1155 | (while reuse | |
1156 | (if (markerp (car reuse)) | |
1157 | (set-marker (car reuse) nil)) | |
1158 | (setq reuse (cdr reuse))))))) | |
1159 | ||
1160 | (defun replace-match-maybe-edit (newtext fixedcase literal noedit match-data) | |
1161 | "Make a replacement with `replace-match', editing `\\?'. | |
1162 | NEXTEXT, FIXEDCASE, LITERAL are just passed on. If NOEDIT is true, no | |
1163 | check for `\\?' is made to save time. MATCH-DATA is used for the | |
1164 | replacement. In case editing is done, it is changed to use markers. | |
1165 | ||
1166 | The return value is non-NIL if there has been no `\\?' or NOEDIT was | |
1167 | passed in. If LITERAL is set, no checking is done, anyway." | |
1168 | (unless (or literal noedit) | |
1169 | (setq noedit t) | |
1170 | (while (string-match "\\(\\`\\|[^\\]\\)\\(\\\\\\\\\\)*\\(\\\\\\?\\)" | |
1171 | newtext) | |
1172 | (setq newtext | |
1173 | (read-input "Edit replacement string: " | |
1174 | (prog1 | |
1175 | (cons | |
1176 | (replace-match "" t t newtext 3) | |
1177 | (1+ (match-beginning 3))) | |
1178 | (setq match-data | |
1179 | (replace-match-data | |
1180 | nil match-data match-data)))) | |
1181 | noedit nil))) | |
1182 | (set-match-data match-data) | |
1183 | (replace-match newtext fixedcase literal) | |
1184 | noedit) | |
1185 | ||
d99118b0 | 1186 | (defun perform-replace (from-string replacements |
698e1804 | 1187 | query-flag regexp-flag delimited-flag |
99a7559f | 1188 | &optional repeat-count map start end) |
698e1804 RS |
1189 | "Subroutine of `query-replace'. Its complexity handles interactive queries. |
1190 | Don't use this in your own program unless you want to query and set the mark | |
1191 | just as `query-replace' does. Instead, write a simple loop like this: | |
698665d1 GM |
1192 | |
1193 | (while (re-search-forward \"foo[ \\t]+bar\" nil t) | |
698e1804 | 1194 | (replace-match \"foobar\" nil nil)) |
698665d1 GM |
1195 | |
1196 | which will run faster and probably do exactly what you want. Please | |
1197 | see the documentation of `replace-match' to find out how to simulate | |
588c915a CW |
1198 | `case-replace'. |
1199 | ||
1200 | This function returns nil if and only if there were no matches to | |
1201 | make, or the user didn't cancel the call." | |
81bdc14d | 1202 | (or map (setq map query-replace-map)) |
1c1dadab RS |
1203 | (and query-flag minibuffer-auto-raise |
1204 | (raise-frame (window-frame (minibuffer-window)))) | |
698e1804 RS |
1205 | (let ((nocasify (not (and case-fold-search case-replace |
1206 | (string-equal from-string | |
1207 | (downcase from-string))))) | |
5a78b471 KH |
1208 | (case-fold-search (and case-fold-search |
1209 | (string-equal from-string | |
1210 | (downcase from-string)))) | |
d83a97ab | 1211 | (literal (or (not regexp-flag) (eq regexp-flag 'literal))) |
698e1804 RS |
1212 | (search-function (if regexp-flag 're-search-forward 'search-forward)) |
1213 | (search-string from-string) | |
e5d77022 | 1214 | (real-match-data nil) ; the match data for the current match |
698e1804 | 1215 | (next-replacement nil) |
7c1c02ac | 1216 | (noedit nil) |
698e1804 RS |
1217 | (keep-going t) |
1218 | (stack nil) | |
698e1804 | 1219 | (replace-count 0) |
5632eb27 PE |
1220 | (nonempty-match nil) |
1221 | ||
7ef5c431 KH |
1222 | ;; If non-nil, it is marker saying where in the buffer to stop. |
1223 | (limit nil) | |
1224 | ||
5632eb27 PE |
1225 | ;; Data for the next match. If a cons, it has the same format as |
1226 | ;; (match-data); otherwise it is t if a match is possible at point. | |
ae4eb03c | 1227 | (match-again t) |
5632eb27 | 1228 | |
02d95a27 RS |
1229 | (message |
1230 | (if query-flag | |
1231 | (substitute-command-keys | |
1232 | "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) ")))) | |
7ef5c431 KH |
1233 | |
1234 | ;; If region is active, in Transient Mark mode, operate on region. | |
47d72254 GM |
1235 | (when start |
1236 | (setq limit (copy-marker (max start end))) | |
1237 | (goto-char (min start end)) | |
1238 | (deactivate-mark)) | |
84482eb3 RS |
1239 | |
1240 | ;; REPLACEMENTS is either a string, a list of strings, or a cons cell | |
1241 | ;; containing a function and its first argument. The function is | |
1242 | ;; called to generate each replacement like this: | |
1243 | ;; (funcall (car replacements) (cdr replacements) replace-count) | |
1244 | ;; It must return a string. | |
1245 | (cond | |
1246 | ((stringp replacements) | |
1247 | (setq next-replacement replacements | |
1248 | replacements nil)) | |
1249 | ((stringp (car replacements)) ; If it isn't a string, it must be a cons | |
1250 | (or repeat-count (setq repeat-count 1)) | |
1251 | (setq replacements (cons 'replace-loop-through-replacements | |
1252 | (vector repeat-count repeat-count | |
1253 | replacements replacements))))) | |
1254 | ||
698e1804 RS |
1255 | (if delimited-flag |
1256 | (setq search-function 're-search-forward | |
1257 | search-string (concat "\\b" | |
1258 | (if regexp-flag from-string | |
1259 | (regexp-quote from-string)) | |
1260 | "\\b"))) | |
1261 | (push-mark) | |
1262 | (undo-boundary) | |
e782e9f2 RS |
1263 | (unwind-protect |
1264 | ;; Loop finding occurrences that perhaps should be replaced. | |
1265 | (while (and keep-going | |
22a76778 | 1266 | (not (or (eobp) (and limit (>= (point) limit)))) |
5632eb27 PE |
1267 | ;; Use the next match if it is already known; |
1268 | ;; otherwise, search for a match after moving forward | |
1269 | ;; one char if progress is required. | |
1270 | (setq real-match-data | |
1271 | (if (consp match-again) | |
1272 | (progn (goto-char (nth 1 match-again)) | |
7c1c02ac DK |
1273 | (replace-match-data t |
1274 | real-match-data | |
1275 | match-again)) | |
5632eb27 | 1276 | (and (or match-again |
889617de GM |
1277 | ;; MATCH-AGAIN non-nil means we |
1278 | ;; accept an adjacent match. If | |
1279 | ;; we don't, move one char to the | |
1280 | ;; right. This takes us a | |
1281 | ;; character too far at the end, | |
1282 | ;; but this is undone after the | |
1283 | ;; while-loop. | |
22a76778 JL |
1284 | (progn |
1285 | (forward-char 1) | |
1286 | (not (or (eobp) | |
1287 | (and limit (>= (point) limit)))))) | |
7ef5c431 | 1288 | (funcall search-function search-string limit t) |
5632eb27 PE |
1289 | ;; For speed, use only integers and |
1290 | ;; reuse the list used last time. | |
7c1c02ac | 1291 | (replace-match-data t real-match-data))))) |
1c4fe319 RS |
1292 | ;; Optionally ignore matches that have a read-only property. |
1293 | (unless (and query-replace-skip-read-only | |
1294 | (text-property-not-all | |
1295 | (match-beginning 0) (match-end 0) | |
1296 | 'read-only nil)) | |
1297 | ||
1298 | ;; Record whether the match is nonempty, to avoid an infinite loop | |
1299 | ;; repeatedly matching the same empty string. | |
1300 | (setq nonempty-match | |
1301 | (/= (nth 0 real-match-data) (nth 1 real-match-data))) | |
1302 | ||
1303 | ;; If the match is empty, record that the next one can't be | |
1304 | ;; adjacent. | |
1305 | ||
1306 | ;; Otherwise, if matching a regular expression, do the next | |
1307 | ;; match now, since the replacement for this match may | |
1308 | ;; affect whether the next match is adjacent to this one. | |
1309 | ;; If that match is empty, don't use it. | |
1310 | (setq match-again | |
1311 | (and nonempty-match | |
1312 | (or (not regexp-flag) | |
1313 | (and (looking-at search-string) | |
1314 | (let ((match (match-data))) | |
1315 | (and (/= (nth 0 match) (nth 1 match)) | |
1316 | match)))))) | |
1317 | ||
1318 | ;; Calculate the replacement string, if necessary. | |
1319 | (when replacements | |
1320 | (set-match-data real-match-data) | |
1321 | (setq next-replacement | |
1322 | (funcall (car replacements) (cdr replacements) | |
7c1c02ac DK |
1323 | replace-count) |
1324 | noedit nil)) | |
1c4fe319 | 1325 | (if (not query-flag) |
cb05ca25 DK |
1326 | (let ((inhibit-read-only |
1327 | query-replace-skip-read-only)) | |
1328 | (unless noedit | |
1329 | (replace-highlight (nth 0 real-match-data) | |
1330 | (nth 1 real-match-data))) | |
7c1c02ac DK |
1331 | (setq noedit |
1332 | (replace-match-maybe-edit | |
1333 | next-replacement nocasify literal | |
1334 | noedit real-match-data) | |
1335 | replace-count (1+ replace-count))) | |
1c4fe319 RS |
1336 | (undo-boundary) |
1337 | (let (done replaced key def) | |
1338 | ;; Loop reading commands until one of them sets done, | |
7c1c02ac DK |
1339 | ;; which means it has finished handling this |
1340 | ;; occurrence. Any command that sets `done' should | |
1341 | ;; leave behind proper match data for the stack. | |
1342 | ;; Commands not setting `done' need to adjust | |
1343 | ;; `real-match-data'. | |
1c4fe319 RS |
1344 | (while (not done) |
1345 | (set-match-data real-match-data) | |
1346 | (replace-highlight (match-beginning 0) (match-end 0)) | |
1347 | ;; Bind message-log-max so we don't fill up the message log | |
1348 | ;; with a bunch of identical messages. | |
1349 | (let ((message-log-max nil)) | |
1350 | (message message from-string next-replacement)) | |
1351 | (setq key (read-event)) | |
1352 | ;; Necessary in case something happens during read-event | |
1353 | ;; that clobbers the match data. | |
1354 | (set-match-data real-match-data) | |
1355 | (setq key (vector key)) | |
1356 | (setq def (lookup-key map key)) | |
1357 | ;; Restore the match data while we process the command. | |
1358 | (cond ((eq def 'help) | |
1359 | (with-output-to-temp-buffer "*Help*" | |
1360 | (princ | |
1361 | (concat "Query replacing " | |
1362 | (if regexp-flag "regexp " "") | |
1363 | from-string " with " | |
1364 | next-replacement ".\n\n" | |
1365 | (substitute-command-keys | |
1366 | query-replace-help))) | |
1367 | (with-current-buffer standard-output | |
1368 | (help-mode)))) | |
1369 | ((eq def 'exit) | |
1370 | (setq keep-going nil) | |
1371 | (setq done t)) | |
1372 | ((eq def 'backup) | |
1373 | (if stack | |
588c915a | 1374 | (let ((elt (pop stack))) |
7c1c02ac DK |
1375 | (goto-char (nth 0 elt)) |
1376 | (setq replaced (nth 1 elt) | |
1377 | real-match-data | |
1378 | (replace-match-data | |
1379 | t real-match-data | |
1380 | (nth 2 elt)))) | |
1c4fe319 RS |
1381 | (message "No previous match") |
1382 | (ding 'no-terminate) | |
1383 | (sit-for 1))) | |
1384 | ((eq def 'act) | |
1385 | (or replaced | |
7c1c02ac DK |
1386 | (setq noedit |
1387 | (replace-match-maybe-edit | |
1388 | next-replacement nocasify literal | |
1389 | noedit real-match-data) | |
1390 | replace-count (1+ replace-count))) | |
1c4fe319 RS |
1391 | (setq done t replaced t)) |
1392 | ((eq def 'act-and-exit) | |
1393 | (or replaced | |
7c1c02ac | 1394 | (setq noedit |
da6eb51c | 1395 | (replace-match-maybe-edit |
7c1c02ac DK |
1396 | next-replacement nocasify literal |
1397 | noedit real-match-data) | |
1398 | replace-count (1+ replace-count))) | |
1c4fe319 RS |
1399 | (setq keep-going nil) |
1400 | (setq done t replaced t)) | |
1401 | ((eq def 'act-and-show) | |
1402 | (if (not replaced) | |
7c1c02ac DK |
1403 | (setq noedit |
1404 | (replace-match-maybe-edit | |
1405 | next-replacement nocasify literal | |
1406 | noedit real-match-data) | |
1407 | replace-count (1+ replace-count) | |
1408 | real-match-data (replace-match-data | |
1409 | t real-match-data) | |
1410 | replaced t))) | |
1c4fe319 RS |
1411 | ((eq def 'automatic) |
1412 | (or replaced | |
7c1c02ac DK |
1413 | (setq noedit |
1414 | (replace-match-maybe-edit | |
1415 | next-replacement nocasify literal | |
1416 | noedit real-match-data) | |
1417 | replace-count (1+ replace-count))) | |
1c4fe319 RS |
1418 | (setq done t query-flag nil replaced t)) |
1419 | ((eq def 'skip) | |
1420 | (setq done t)) | |
1421 | ((eq def 'recenter) | |
1422 | (recenter nil)) | |
1423 | ((eq def 'edit) | |
1424 | (let ((opos (point-marker))) | |
7c1c02ac DK |
1425 | (setq real-match-data (replace-match-data |
1426 | nil real-match-data | |
1427 | real-match-data)) | |
1c4fe319 | 1428 | (goto-char (match-beginning 0)) |
86914dcc RS |
1429 | (save-excursion |
1430 | (save-window-excursion | |
1431 | (recursive-edit))) | |
7c1c02ac DK |
1432 | (goto-char opos) |
1433 | (set-marker opos nil)) | |
1c4fe319 RS |
1434 | ;; Before we make the replacement, |
1435 | ;; decide whether the search string | |
1436 | ;; can match again just after this match. | |
1437 | (if (and regexp-flag nonempty-match) | |
1438 | (setq match-again (and (looking-at search-string) | |
1439 | (match-data))))) | |
1c4fe319 RS |
1440 | ;; Edit replacement. |
1441 | ((eq def 'edit-replacement) | |
7c1c02ac DK |
1442 | (setq real-match-data (replace-match-data |
1443 | nil real-match-data | |
1444 | real-match-data) | |
1445 | next-replacement | |
1c4fe319 | 1446 | (read-input "Edit replacement string: " |
7c1c02ac DK |
1447 | next-replacement) |
1448 | noedit nil) | |
1449 | (if replaced | |
1450 | (set-match-data real-match-data) | |
1451 | (setq noedit | |
1452 | (replace-match-maybe-edit | |
1453 | next-replacement nocasify literal noedit | |
1454 | real-match-data) | |
1455 | replaced t)) | |
1c4fe319 | 1456 | (setq done t)) |
d99118b0 | 1457 | |
1c4fe319 | 1458 | ((eq def 'delete-and-edit) |
7c1c02ac DK |
1459 | (replace-match "" t t) |
1460 | (setq real-match-data (replace-match-data | |
1461 | nil real-match-data)) | |
1462 | (replace-dehighlight) | |
1463 | (save-excursion (recursive-edit)) | |
1c4fe319 RS |
1464 | (setq replaced t)) |
1465 | ;; Note: we do not need to treat `exit-prefix' | |
1466 | ;; specially here, since we reread | |
1467 | ;; any unrecognized character. | |
1468 | (t | |
1469 | (setq this-command 'mode-exited) | |
1470 | (setq keep-going nil) | |
1471 | (setq unread-command-events | |
1472 | (append (listify-key-sequence key) | |
1473 | unread-command-events)) | |
1474 | (setq done t)))) | |
1475 | ;; Record previous position for ^ when we move on. | |
1476 | ;; Change markers to numbers in the match data | |
1477 | ;; since lots of markers slow down editing. | |
7c1c02ac DK |
1478 | (push (list (point) replaced |
1479 | ;;; If the replacement has already happened, all we need is the | |
1480 | ;;; current match start and end. We could get this with a trivial | |
1481 | ;;; match like | |
1482 | ;;; (save-excursion (goto-char (match-beginning 0)) | |
1483 | ;;; (search-forward (match-string 0)) | |
1484 | ;;; (match-data t)) | |
1485 | ;;; if we really wanted to avoid manually constructing match data. | |
1486 | ;;; Adding current-buffer is necessary so that match-data calls can | |
1487 | ;;; return markers which are appropriate for editing. | |
1488 | (if replaced | |
1489 | (list | |
1490 | (match-beginning 0) | |
1491 | (match-end 0) | |
1492 | (current-buffer)) | |
1493 | (match-data t))) | |
1494 | stack))))) | |
889617de GM |
1495 | |
1496 | ;; The code preventing adjacent regexp matches in the condition | |
1497 | ;; of the while-loop above will haven taken us one character | |
1498 | ;; beyond the last replacement. Undo that. | |
1499 | (when (and regexp-flag (not match-again) (> replace-count 0)) | |
1500 | (backward-char 1)) | |
d99118b0 | 1501 | |
e782e9f2 | 1502 | (replace-dehighlight)) |
4d33492a RS |
1503 | (or unread-command-events |
1504 | (message "Replaced %d occurrence%s" | |
1505 | replace-count | |
1506 | (if (= replace-count 1) "" "s"))) | |
1507 | (and keep-going stack))) | |
698e1804 | 1508 | |
95807e68 | 1509 | (defcustom query-replace-highlight t |
9d325ebf RS |
1510 | "*Non-nil means to highlight words during query replacement." |
1511 | :type 'boolean | |
1512 | :group 'matching) | |
e782e9f2 RS |
1513 | |
1514 | (defvar replace-overlay nil) | |
1515 | ||
1516 | (defun replace-dehighlight () | |
1517 | (and replace-overlay | |
1518 | (progn | |
1519 | (delete-overlay replace-overlay) | |
1520 | (setq replace-overlay nil)))) | |
1521 | ||
1522 | (defun replace-highlight (start end) | |
1523 | (and query-replace-highlight | |
7c1c02ac DK |
1524 | (if replace-overlay |
1525 | (move-overlay replace-overlay start end (current-buffer)) | |
1526 | (setq replace-overlay (make-overlay start end)) | |
1527 | (overlay-put replace-overlay 'face | |
1528 | (if (facep 'query-replace) | |
1529 | 'query-replace 'region))))) | |
e782e9f2 | 1530 | |
ab5796a9 | 1531 | ;;; arch-tag: 16b4cd61-fd40-497b-b86f-b667c4cf88e4 |
c88ab9ce | 1532 | ;;; replace.el ends here |