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60370d40 | 1 | ;;; replace.el --- replace commands for Emacs |
c88ab9ce | 2 | |
653479ad | 3 | ;; Copyright (C) 1985, 86, 87, 92, 94, 96, 1997, 2000, 2001, 2002 |
8f3ff96b | 4 | ;; Free Software Foundation, Inc. |
3a801d0c | 5 | |
698e1804 RS |
6 | ;; This file is part of GNU Emacs. |
7 | ||
8 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
9 | ;; it under the terms of the GNU General Public License as published by | |
e5d77022 | 10 | ;; the Free Software Foundation; either version 2, or (at your option) |
698e1804 RS |
11 | ;; any later version. |
12 | ||
13 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
14 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | ;; GNU General Public License for more details. | |
17 | ||
18 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
19 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
20 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | ;; Boston, MA 02111-1307, USA. | |
698e1804 | 22 | |
d9ecc911 ER |
23 | ;;; Commentary: |
24 | ||
25 | ;; This package supplies the string and regular-expression replace functions | |
26 | ;; documented in the Emacs user's manual. | |
27 | ||
4f4b8eff | 28 | ;;; Code: |
698e1804 | 29 | |
9d325ebf | 30 | (defcustom case-replace t |
f54701d1 | 31 | "*Non-nil means `query-replace' should preserve case in replacements." |
9d325ebf RS |
32 | :type 'boolean |
33 | :group 'matching) | |
77176e73 | 34 | |
770970cb RS |
35 | (defvar query-replace-history nil) |
36 | ||
151270f3 RS |
37 | (defvar query-replace-interactive nil |
38 | "Non-nil means `query-replace' uses the last search string. | |
39 | That becomes the \"string to replace\".") | |
40 | ||
bdb1c08f | 41 | (defcustom query-replace-from-history-variable 'query-replace-history |
f54701d1 | 42 | "History list to use for the FROM argument of `query-replace' commands. |
bdb1c08f RS |
43 | The value of this variable should be a symbol; that symbol |
44 | is used as a variable to hold a history list for the strings | |
45 | or patterns to be replaced." | |
46 | :group 'matching | |
cd32a7ba DN |
47 | :type 'symbol |
48 | :version "20.3") | |
bdb1c08f RS |
49 | |
50 | (defcustom query-replace-to-history-variable 'query-replace-history | |
f54701d1 | 51 | "History list to use for the TO argument of `query-replace' commands. |
bdb1c08f RS |
52 | The value of this variable should be a symbol; that symbol |
53 | is used as a variable to hold a history list for replacement | |
54 | strings or patterns." | |
55 | :group 'matching | |
cd32a7ba DN |
56 | :type 'symbol |
57 | :version "20.3") | |
bdb1c08f | 58 | |
1c4fe319 RS |
59 | (defcustom query-replace-skip-read-only nil |
60 | "*Non-nil means `query-replace' and friends ignore read-only matches." | |
61 | :type 'boolean | |
62 | :group 'matching | |
63 | :version "21.3") | |
64 | ||
86914dcc RS |
65 | (defun query-replace-read-args (string regexp-flag &optional noerror) |
66 | (unless noerror | |
67 | (barf-if-buffer-read-only)) | |
770970cb | 68 | (let (from to) |
151270f3 RS |
69 | (if query-replace-interactive |
70 | (setq from (car (if regexp-flag regexp-search-ring search-ring))) | |
71 | (setq from (read-from-minibuffer (format "%s: " string) | |
72 | nil nil nil | |
bdb1c08f | 73 | query-replace-from-history-variable |
d9291fa3 RS |
74 | nil t)) |
75 | ;; Warn if user types \n or \t, but don't reject the input. | |
76 | (if (string-match "\\\\[nt]" from) | |
77 | (let ((match (match-string 0 from))) | |
78 | (cond | |
79 | ((string= match "\\n") | |
80 | (message "Note: `\\n' here doesn't match a newline; to do that, type C-q C-j instead")) | |
81 | ((string= match "\\t") | |
82 | (message "Note: `\\t' here doesn't match a tab; to do that, just type TAB"))) | |
83 | (sit-for 2)))) | |
84 | ||
770970cb RS |
85 | (setq to (read-from-minibuffer (format "%s %s with: " string from) |
86 | nil nil nil | |
4a8f3b3d | 87 | query-replace-to-history-variable from t)) |
47d72254 GM |
88 | (if (and transient-mark-mode mark-active) |
89 | (list from to current-prefix-arg (region-beginning) (region-end)) | |
90 | (list from to current-prefix-arg nil nil)))) | |
770970cb | 91 | |
47d72254 | 92 | (defun query-replace (from-string to-string &optional delimited start end) |
da44e784 RM |
93 | "Replace some occurrences of FROM-STRING with TO-STRING. |
94 | As each match is found, the user must type a character saying | |
95 | what to do with it. For directions, type \\[help-command] at that time. | |
96 | ||
7ef5c431 KH |
97 | In Transient Mark mode, if the mark is active, operate on the contents |
98 | of the region. Otherwise, operate from point to the end of the buffer. | |
99 | ||
151270f3 RS |
100 | If `query-replace-interactive' is non-nil, the last incremental search |
101 | string is used as FROM-STRING--you don't have to specify it with the | |
102 | minibuffer. | |
103 | ||
d2a0ee8b RS |
104 | Replacement transfers the case of the old text to the new text, |
105 | if `case-replace' and `case-fold-search' | |
da44e784 | 106 | are non-nil and FROM-STRING has no uppercase letters. |
9b0bf2b6 RS |
107 | \(Preserving case means that if the string matched is all caps, or capitalized, |
108 | then its replacement is upcased or capitalized.) | |
109 | ||
118a01c9 | 110 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
81bdc14d | 111 | only matches surrounded by word boundaries. |
47d72254 | 112 | Fourth and fifth arg START and END specify the region to operate on. |
81bdc14d RS |
113 | |
114 | To customize possible responses, change the \"bindings\" in `query-replace-map'." | |
151270f3 | 115 | (interactive (query-replace-read-args "Query replace" nil)) |
99a7559f | 116 | (perform-replace from-string to-string t nil delimited nil nil start end)) |
7ef5c431 | 117 | |
73fa8346 | 118 | (define-key esc-map "%" 'query-replace) |
da44e784 | 119 | |
47d72254 | 120 | (defun query-replace-regexp (regexp to-string &optional delimited start end) |
da44e784 RM |
121 | "Replace some things after point matching REGEXP with TO-STRING. |
122 | As each match is found, the user must type a character saying | |
123 | what to do with it. For directions, type \\[help-command] at that time. | |
124 | ||
7ef5c431 KH |
125 | In Transient Mark mode, if the mark is active, operate on the contents |
126 | of the region. Otherwise, operate from point to the end of the buffer. | |
127 | ||
151270f3 RS |
128 | If `query-replace-interactive' is non-nil, the last incremental search |
129 | regexp is used as REGEXP--you don't have to specify it with the | |
130 | minibuffer. | |
131 | ||
118a01c9 | 132 | Preserves case in each replacement if `case-replace' and `case-fold-search' |
da44e784 | 133 | are non-nil and REGEXP has no uppercase letters. |
47d72254 | 134 | |
118a01c9 | 135 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 136 | only matches surrounded by word boundaries. |
47d72254 GM |
137 | Fourth and fifth arg START and END specify the region to operate on. |
138 | ||
118a01c9 RS |
139 | In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, |
140 | and `\\=\\N' (where N is a digit) stands for | |
141 | whatever what matched the Nth `\\(...\\)' in REGEXP." | |
151270f3 | 142 | (interactive (query-replace-read-args "Query replace regexp" t)) |
99a7559f | 143 | (perform-replace regexp to-string t t delimited nil nil start end)) |
cbc127de | 144 | (define-key esc-map [?\C-%] 'query-replace-regexp) |
da44e784 | 145 | |
47d72254 | 146 | (defun query-replace-regexp-eval (regexp to-expr &optional delimited start end) |
84482eb3 RS |
147 | "Replace some things after point matching REGEXP with the result of TO-EXPR. |
148 | As each match is found, the user must type a character saying | |
149 | what to do with it. For directions, type \\[help-command] at that time. | |
150 | ||
151 | TO-EXPR is a Lisp expression evaluated to compute each replacement. It may | |
152 | reference `replace-count' to get the number of replacements already made. | |
153 | If the result of TO-EXPR is not a string, it is converted to one using | |
154 | `prin1-to-string' with the NOESCAPE argument (which see). | |
155 | ||
156 | For convenience, when entering TO-EXPR interactively, you can use `\\&' or | |
653479ad AS |
157 | `\\0' to stand for whatever matched the whole of REGEXP, and `\\N' (where |
158 | N is a digit) to stand for whatever matched the Nth `\\(...\\)' in REGEXP. | |
84482eb3 RS |
159 | Use `\\#&' or `\\#N' if you want a number instead of a string. |
160 | ||
161 | In Transient Mark mode, if the mark is active, operate on the contents | |
162 | of the region. Otherwise, operate from point to the end of the buffer. | |
163 | ||
164 | If `query-replace-interactive' is non-nil, the last incremental search | |
165 | regexp is used as REGEXP--you don't have to specify it with the | |
166 | minibuffer. | |
167 | ||
168 | Preserves case in each replacement if `case-replace' and `case-fold-search' | |
169 | are non-nil and REGEXP has no uppercase letters. | |
47d72254 | 170 | |
84482eb3 | 171 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
470bbe9b | 172 | only matches that are surrounded by word boundaries. |
47d72254 | 173 | Fourth and fifth arg START and END specify the region to operate on." |
84482eb3 | 174 | (interactive |
47d72254 GM |
175 | (let (from to start end) |
176 | (when (and transient-mark-mode mark-active) | |
177 | (setq start (region-beginning) | |
178 | end (region-end))) | |
84482eb3 RS |
179 | (if query-replace-interactive |
180 | (setq from (car regexp-search-ring)) | |
181 | (setq from (read-from-minibuffer "Query replace regexp: " | |
182 | nil nil nil | |
183 | query-replace-from-history-variable | |
184 | nil t))) | |
185 | (setq to (list (read-from-minibuffer | |
186 | (format "Query replace regexp %s with eval: " from) | |
187 | nil nil t query-replace-to-history-variable from t))) | |
188 | ;; We make TO a list because replace-match-string-symbols requires one, | |
189 | ;; and the user might enter a single token. | |
190 | (replace-match-string-symbols to) | |
43744cb9 | 191 | (list from (car to) current-prefix-arg start end))) |
d2ce3151 | 192 | (perform-replace regexp (cons 'replace-eval-replacement to-expr) |
99a7559f | 193 | t t delimited nil nil start end)) |
84482eb3 | 194 | |
47d72254 | 195 | (defun map-query-replace-regexp (regexp to-strings &optional n start end) |
da44e784 | 196 | "Replace some matches for REGEXP with various strings, in rotation. |
e730be7f DL |
197 | The second argument TO-STRINGS contains the replacement strings, |
198 | separated by spaces. Third arg DELIMITED (prefix arg if interactive), | |
199 | if non-nil, means replace only matches surrounded by word boundaries. | |
200 | This command works like `query-replace-regexp' except that each | |
201 | successive replacement uses the next successive replacement string, | |
da44e784 RM |
202 | wrapping around from the last such string to the first. |
203 | ||
7ef5c431 KH |
204 | In Transient Mark mode, if the mark is active, operate on the contents |
205 | of the region. Otherwise, operate from point to the end of the buffer. | |
206 | ||
da44e784 RM |
207 | Non-interactively, TO-STRINGS may be a list of replacement strings. |
208 | ||
151270f3 RS |
209 | If `query-replace-interactive' is non-nil, the last incremental search |
210 | regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
211 | ||
da44e784 | 212 | A prefix argument N says to use each replacement string N times |
47d72254 GM |
213 | before rotating to the next. |
214 | Fourth and fifth arg START and END specify the region to operate on." | |
770970cb | 215 | (interactive |
47d72254 GM |
216 | (let (from to start end) |
217 | (when (and transient-mark-mode mark-active) | |
218 | (setq start (region-beginning) | |
219 | end (region-end))) | |
151270f3 RS |
220 | (setq from (if query-replace-interactive |
221 | (car regexp-search-ring) | |
222 | (read-from-minibuffer "Map query replace (regexp): " | |
223 | nil nil nil | |
fce31d51 | 224 | 'query-replace-history nil t))) |
770970cb RS |
225 | (setq to (read-from-minibuffer |
226 | (format "Query replace %s with (space-separated strings): " | |
227 | from) | |
228 | nil nil nil | |
4a8f3b3d | 229 | 'query-replace-history from t)) |
47d72254 | 230 | (list from to start end current-prefix-arg))) |
da44e784 RM |
231 | (let (replacements) |
232 | (if (listp to-strings) | |
233 | (setq replacements to-strings) | |
234 | (while (/= (length to-strings) 0) | |
235 | (if (string-match " " to-strings) | |
236 | (setq replacements | |
237 | (append replacements | |
238 | (list (substring to-strings 0 | |
239 | (string-match " " to-strings)))) | |
240 | to-strings (substring to-strings | |
241 | (1+ (string-match " " to-strings)))) | |
242 | (setq replacements (append replacements (list to-strings)) | |
243 | to-strings "")))) | |
99a7559f | 244 | (perform-replace regexp replacements t t nil n nil start end))) |
da44e784 | 245 | |
47d72254 | 246 | (defun replace-string (from-string to-string &optional delimited start end) |
da44e784 RM |
247 | "Replace occurrences of FROM-STRING with TO-STRING. |
248 | Preserve case in each match if `case-replace' and `case-fold-search' | |
249 | are non-nil and FROM-STRING has no uppercase letters. | |
9b0bf2b6 RS |
250 | \(Preserving case means that if the string matched is all caps, or capitalized, |
251 | then its replacement is upcased or capitalized.) | |
252 | ||
7ef5c431 KH |
253 | In Transient Mark mode, if the mark is active, operate on the contents |
254 | of the region. Otherwise, operate from point to the end of the buffer. | |
255 | ||
118a01c9 | 256 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 257 | only matches surrounded by word boundaries. |
47d72254 | 258 | Fourth and fifth arg START and END specify the region to operate on. |
da44e784 | 259 | |
151270f3 RS |
260 | If `query-replace-interactive' is non-nil, the last incremental search |
261 | string is used as FROM-STRING--you don't have to specify it with the | |
262 | minibuffer. | |
263 | ||
da44e784 RM |
264 | This function is usually the wrong thing to use in a Lisp program. |
265 | What you probably want is a loop like this: | |
118a01c9 RS |
266 | (while (search-forward FROM-STRING nil t) |
267 | (replace-match TO-STRING nil t)) | |
87532fbe RS |
268 | which will run faster and will not set the mark or print anything. |
269 | \(You may need a more complex loop if FROM-STRING can match the null string | |
270 | and TO-STRING is also null.)" | |
151270f3 | 271 | (interactive (query-replace-read-args "Replace string" nil)) |
99a7559f | 272 | (perform-replace from-string to-string nil nil delimited nil nil start end)) |
da44e784 | 273 | |
47d72254 | 274 | (defun replace-regexp (regexp to-string &optional delimited start end) |
da44e784 | 275 | "Replace things after point matching REGEXP with TO-STRING. |
118a01c9 | 276 | Preserve case in each match if `case-replace' and `case-fold-search' |
da44e784 | 277 | are non-nil and REGEXP has no uppercase letters. |
47d72254 GM |
278 | |
279 | In Transient Mark mode, if the mark is active, operate on the contents | |
280 | of the region. Otherwise, operate from point to the end of the buffer. | |
281 | ||
118a01c9 | 282 | Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace |
da44e784 | 283 | only matches surrounded by word boundaries. |
47d72254 GM |
284 | Fourth and fifth arg START and END specify the region to operate on. |
285 | ||
118a01c9 RS |
286 | In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, |
287 | and `\\=\\N' (where N is a digit) stands for | |
880f22a1 | 288 | whatever what matched the Nth `\\(...\\)' in REGEXP. |
da44e784 | 289 | |
151270f3 RS |
290 | If `query-replace-interactive' is non-nil, the last incremental search |
291 | regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
292 | ||
da44e784 RM |
293 | This function is usually the wrong thing to use in a Lisp program. |
294 | What you probably want is a loop like this: | |
295 | (while (re-search-forward REGEXP nil t) | |
118a01c9 | 296 | (replace-match TO-STRING nil nil)) |
da44e784 | 297 | which will run faster and will not set the mark or print anything." |
151270f3 | 298 | (interactive (query-replace-read-args "Replace regexp" t)) |
99a7559f | 299 | (perform-replace regexp to-string nil t delimited nil nil start end)) |
e32eb3e6 | 300 | |
4c53bd2b RS |
301 | \f |
302 | (defvar regexp-history nil | |
303 | "History list for some commands that read regular expressions.") | |
da44e784 | 304 | |
e32eb3e6 | 305 | |
31e1d920 | 306 | (defalias 'delete-non-matching-lines 'keep-lines) |
e32eb3e6 GM |
307 | (defalias 'delete-matching-lines 'flush-lines) |
308 | (defalias 'count-matches 'how-many) | |
309 | ||
310 | ||
311 | (defun keep-lines-read-args (prompt) | |
312 | "Read arguments for `keep-lines' and friends. | |
313 | Prompt for a regexp with PROMPT. | |
2ced751f RS |
314 | Value is a list, (REGEXP)." |
315 | (list (read-from-minibuffer prompt nil nil nil | |
316 | 'regexp-history nil t))) | |
e32eb3e6 GM |
317 | |
318 | (defun keep-lines (regexp &optional rstart rend) | |
698e1804 RS |
319 | "Delete all lines except those containing matches for REGEXP. |
320 | A match split across lines preserves all the lines it lies in. | |
d2a0ee8b RS |
321 | Applies to all lines after point. |
322 | ||
323 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
e32eb3e6 GM |
324 | the matching is case-sensitive. |
325 | ||
326 | Second and third arg RSTART and REND specify the region to operate on. | |
327 | ||
2ced751f RS |
328 | Interactively, in Transient Mark mode when the mark is active, operate |
329 | on the contents of the region. Otherwise, operate from point to the | |
330 | end of the buffer." | |
331 | ||
e32eb3e6 GM |
332 | (interactive |
333 | (keep-lines-read-args "Keep lines (containing match for regexp): ")) | |
334 | (if rstart | |
335 | (goto-char (min rstart rend)) | |
2ced751f RS |
336 | (if (and transient-mark-mode mark-active) |
337 | (setq rstart (region-beginning) | |
338 | rend (copy-marker (region-end))) | |
339 | (setq rstart (point) | |
340 | rend (point-max-marker))) | |
341 | (goto-char rstart)) | |
698e1804 RS |
342 | (save-excursion |
343 | (or (bolp) (forward-line 1)) | |
d2a0ee8b RS |
344 | (let ((start (point)) |
345 | (case-fold-search (and case-fold-search | |
346 | (isearch-no-upper-case-p regexp t)))) | |
e32eb3e6 | 347 | (while (< (point) rend) |
698e1804 | 348 | ;; Start is first char not preserved by previous match. |
e32eb3e6 GM |
349 | (if (not (re-search-forward regexp rend 'move)) |
350 | (delete-region start rend) | |
698e1804 RS |
351 | (let ((end (save-excursion (goto-char (match-beginning 0)) |
352 | (beginning-of-line) | |
353 | (point)))) | |
354 | ;; Now end is first char preserved by the new match. | |
355 | (if (< start end) | |
356 | (delete-region start end)))) | |
e32eb3e6 GM |
357 | |
358 | (setq start (save-excursion (forward-line 1) (point))) | |
698e1804 | 359 | ;; If the match was empty, avoid matching again at same place. |
e32eb3e6 GM |
360 | (and (< (point) rend) |
361 | (= (match-beginning 0) (match-end 0)) | |
698e1804 RS |
362 | (forward-char 1)))))) |
363 | ||
e32eb3e6 GM |
364 | |
365 | (defun flush-lines (regexp &optional rstart rend) | |
698e1804 RS |
366 | "Delete lines containing matches for REGEXP. |
367 | If a match is split across lines, all the lines it lies in are deleted. | |
d2a0ee8b RS |
368 | Applies to lines after point. |
369 | ||
370 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
e32eb3e6 GM |
371 | the matching is case-sensitive. |
372 | ||
373 | Second and third arg RSTART and REND specify the region to operate on. | |
374 | ||
2ced751f RS |
375 | Interactively, in Transient Mark mode when the mark is active, operate |
376 | on the contents of the region. Otherwise, operate from point to the | |
377 | end of the buffer." | |
378 | ||
e32eb3e6 GM |
379 | (interactive |
380 | (keep-lines-read-args "Flush lines (containing match for regexp): ")) | |
381 | (if rstart | |
382 | (goto-char (min rstart rend)) | |
2ced751f RS |
383 | (if (and transient-mark-mode mark-active) |
384 | (setq rstart (region-beginning) | |
385 | rend (copy-marker (region-end))) | |
386 | (setq rstart (point) | |
387 | rend (point-max-marker))) | |
388 | (goto-char rstart)) | |
d2a0ee8b RS |
389 | (let ((case-fold-search (and case-fold-search |
390 | (isearch-no-upper-case-p regexp t)))) | |
391 | (save-excursion | |
e32eb3e6 GM |
392 | (while (and (< (point) rend) |
393 | (re-search-forward regexp rend t)) | |
d2a0ee8b RS |
394 | (delete-region (save-excursion (goto-char (match-beginning 0)) |
395 | (beginning-of-line) | |
396 | (point)) | |
397 | (progn (forward-line 1) (point))))))) | |
698e1804 | 398 | |
e32eb3e6 GM |
399 | |
400 | (defun how-many (regexp &optional rstart rend) | |
d2a0ee8b RS |
401 | "Print number of matches for REGEXP following point. |
402 | ||
403 | If REGEXP contains upper case characters (excluding those preceded by `\\'), | |
e32eb3e6 GM |
404 | the matching is case-sensitive. |
405 | ||
406 | Second and third arg RSTART and REND specify the region to operate on. | |
407 | ||
2ced751f RS |
408 | Interactively, in Transient Mark mode when the mark is active, operate |
409 | on the contents of the region. Otherwise, operate from point to the | |
410 | end of the buffer." | |
411 | ||
e32eb3e6 GM |
412 | (interactive |
413 | (keep-lines-read-args "How many matches for (regexp): ")) | |
f601efb0 SM |
414 | (save-excursion |
415 | (if rstart | |
416 | (goto-char (min rstart rend)) | |
2ced751f RS |
417 | (if (and transient-mark-mode mark-active) |
418 | (setq rstart (region-beginning) | |
419 | rend (copy-marker (region-end))) | |
420 | (setq rstart (point) | |
421 | rend (point-max-marker))) | |
422 | (goto-char rstart)) | |
f601efb0 SM |
423 | (let ((count 0) |
424 | opoint | |
425 | (case-fold-search (and case-fold-search | |
426 | (isearch-no-upper-case-p regexp t)))) | |
427 | (while (and (< (point) rend) | |
428 | (progn (setq opoint (point)) | |
429 | (re-search-forward regexp rend t))) | |
430 | (if (= opoint (point)) | |
431 | (forward-char 1) | |
432 | (setq count (1+ count)))) | |
433 | (message "%d occurrences" count)))) | |
e32eb3e6 | 434 | |
4c53bd2b | 435 | \f |
f601efb0 SM |
436 | (defvar occur-mode-map |
437 | (let ((map (make-sparse-keymap))) | |
438 | (define-key map [mouse-2] 'occur-mode-mouse-goto) | |
439 | (define-key map "\C-c\C-c" 'occur-mode-goto-occurrence) | |
440 | (define-key map "\C-m" 'occur-mode-goto-occurrence) | |
029024e2 | 441 | (define-key map "\o" 'occur-mode-goto-occurrence-other-window) |
365486d6 | 442 | (define-key map "\C-o" 'occur-mode-display-occurrence) |
f601efb0 SM |
443 | (define-key map "\M-n" 'occur-next) |
444 | (define-key map "\M-p" 'occur-prev) | |
445 | (define-key map "g" 'revert-buffer) | |
446 | map) | |
447 | "Keymap for `occur-mode'.") | |
698e1804 | 448 | |
e09d4033 RS |
449 | |
450 | (defvar occur-buffer nil | |
451 | "Name of buffer for last occur.") | |
452 | ||
453 | ||
454 | (defvar occur-nlines nil | |
455 | "Number of lines of context to show around matching line.") | |
456 | ||
a41284da RS |
457 | (defvar occur-command-arguments nil |
458 | "Arguments that were given to `occur' when it made this buffer.") | |
698e1804 | 459 | |
de3c9b09 RS |
460 | (put 'occur-mode 'mode-class 'special) |
461 | ||
505847d4 | 462 | (defun occur-mode () |
698e1804 | 463 | "Major mode for output from \\[occur]. |
0081c8a1 RS |
464 | \\<occur-mode-map>Move point to one of the items in this buffer, then use |
465 | \\[occur-mode-goto-occurrence] to go to the occurrence that the item refers to. | |
466 | Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it. | |
467 | ||
698e1804 | 468 | \\{occur-mode-map}" |
505847d4 RS |
469 | (kill-all-local-variables) |
470 | (use-local-map occur-mode-map) | |
471 | (setq major-mode 'occur-mode) | |
472 | (setq mode-name "Occur") | |
473 | (make-local-variable 'revert-buffer-function) | |
474 | (setq revert-buffer-function 'occur-revert-function) | |
f601efb0 | 475 | (set (make-local-variable 'revert-buffer-function) 'occur-revert-function) |
698e1804 RS |
476 | (make-local-variable 'occur-buffer) |
477 | (make-local-variable 'occur-nlines) | |
505847d4 RS |
478 | (make-local-variable 'occur-command-arguments) |
479 | (run-hooks 'occur-mode-hook)) | |
698e1804 | 480 | |
a41284da | 481 | (defun occur-revert-function (ignore1 ignore2) |
f54701d1 | 482 | "Handle `revert-buffer' for *Occur* buffers." |
a41284da RS |
483 | (let ((args occur-command-arguments )) |
484 | (save-excursion | |
485 | (set-buffer occur-buffer) | |
486 | (apply 'occur args)))) | |
487 | ||
78bead73 RS |
488 | (defun occur-mode-mouse-goto (event) |
489 | "In Occur mode, go to the occurrence whose line you click on." | |
490 | (interactive "e") | |
491 | (let (buffer pos) | |
492 | (save-excursion | |
493 | (set-buffer (window-buffer (posn-window (event-end event)))) | |
494 | (save-excursion | |
495 | (goto-char (posn-point (event-end event))) | |
496 | (setq pos (occur-mode-find-occurrence)) | |
497 | (setq buffer occur-buffer))) | |
498 | (pop-to-buffer buffer) | |
499 | (goto-char (marker-position pos)))) | |
500 | ||
501 | (defun occur-mode-find-occurrence () | |
698e1804 RS |
502 | (if (or (null occur-buffer) |
503 | (null (buffer-name occur-buffer))) | |
504 | (progn | |
8d15583f | 505 | (setq occur-buffer nil) |
698e1804 | 506 | (error "Buffer in which occurrences were found is deleted"))) |
8d15583f RS |
507 | (let ((pos (get-text-property (point) 'occur))) |
508 | (if (null pos) | |
509 | (error "No occurrence on this line") | |
510 | pos))) | |
78bead73 RS |
511 | |
512 | (defun occur-mode-goto-occurrence () | |
513 | "Go to the occurrence the current line describes." | |
514 | (interactive) | |
515 | (let ((pos (occur-mode-find-occurrence))) | |
698e1804 | 516 | (pop-to-buffer occur-buffer) |
121e2227 | 517 | (goto-char (marker-position pos)))) |
8d15583f | 518 | |
029024e2 RS |
519 | (defun occur-mode-goto-occurrence-other-window () |
520 | "Go to the occurrence the current line describes, in another window." | |
521 | (interactive) | |
522 | (let ((pos (occur-mode-find-occurrence))) | |
523 | (switch-to-buffer-other-window occur-buffer) | |
524 | (goto-char (marker-position pos)))) | |
525 | ||
365486d6 RS |
526 | (defun occur-mode-display-occurrence () |
527 | "Display in another window the occurrence the current line describes." | |
528 | (interactive) | |
529 | (let ((pos (occur-mode-find-occurrence)) | |
530 | same-window-buffer-names | |
531 | same-window-regexps | |
532 | window) | |
533 | (setq window (display-buffer occur-buffer)) | |
534 | ;; This is the way to set point in the proper window. | |
535 | (save-selected-window | |
536 | (select-window window) | |
537 | (goto-char (marker-position pos))))) | |
538 | ||
8d15583f RS |
539 | (defun occur-next (&optional n) |
540 | "Move to the Nth (default 1) next match in the *Occur* buffer." | |
541 | (interactive "p") | |
542 | (if (not n) (setq n 1)) | |
543 | (let ((r)) | |
544 | (while (> n 0) | |
545 | (if (get-text-property (point) 'occur-point) | |
546 | (forward-char 1)) | |
547 | (setq r (next-single-property-change (point) 'occur-point)) | |
548 | (if r | |
549 | (goto-char r) | |
e730be7f | 550 | (error "No more matches")) |
8d15583f RS |
551 | (setq n (1- n))))) |
552 | ||
553 | ||
554 | ||
555 | (defun occur-prev (&optional n) | |
556 | "Move to the Nth (default 1) previous match in the *Occur* buffer." | |
557 | (interactive "p") | |
558 | (if (not n) (setq n 1)) | |
559 | (let ((r)) | |
560 | (while (> n 0) | |
561 | ||
562 | (setq r (get-text-property (point) 'occur-point)) | |
563 | (if r (forward-char -1)) | |
564 | ||
565 | (setq r (previous-single-property-change (point) 'occur-point)) | |
566 | (if r | |
567 | (goto-char (- r 1)) | |
e730be7f | 568 | (error "No earlier matches")) |
8d15583f RS |
569 | |
570 | (setq n (1- n))))) | |
4c53bd2b | 571 | \f |
9d325ebf | 572 | (defcustom list-matching-lines-default-context-lines 0 |
e730be7f DL |
573 | "*Default number of context lines included around `list-matching-lines' matches. |
574 | A negative number means to include that many lines before the match. | |
9d325ebf RS |
575 | A positive number means to include that many lines both before and after." |
576 | :type 'integer | |
577 | :group 'matching) | |
698e1804 | 578 | |
31e1d920 | 579 | (defalias 'list-matching-lines 'occur) |
698e1804 | 580 | |
c9daced0 | 581 | (defvar list-matching-lines-face 'bold |
e730be7f | 582 | "*Face used by \\[list-matching-lines] to show the text that matches. |
c9daced0 RS |
583 | If the value is nil, don't highlight the matching portions specially.") |
584 | ||
698e1804 | 585 | (defun occur (regexp &optional nlines) |
99976f85 | 586 | "Show all lines in the current buffer containing a match for REGEXP. |
da44e784 RM |
587 | |
588 | If a match spreads across multiple lines, all those lines are shown. | |
698e1804 | 589 | |
da44e784 RM |
590 | Each line is displayed with NLINES lines before and after, or -NLINES |
591 | before if NLINES is negative. | |
592 | NLINES defaults to `list-matching-lines-default-context-lines'. | |
698e1804 RS |
593 | Interactively it is the prefix arg. |
594 | ||
4c53bd2b | 595 | The lines are shown in a buffer named `*Occur*'. |
698e1804 | 596 | It serves as a menu to find any of the occurrences in this buffer. |
de3c9b09 | 597 | \\<occur-mode-map>\\[describe-mode] in that buffer will explain how. |
9483d601 | 598 | |
de3c9b09 RS |
599 | If REGEXP contains upper case characters (excluding those preceded by `\\'), |
600 | the matching is case-sensitive." | |
a5dfed3e RS |
601 | (interactive |
602 | (list (let* ((default (car regexp-history)) | |
603 | (input | |
604 | (read-from-minibuffer | |
605 | (if default | |
606 | (format "List lines matching regexp (default `%s'): " | |
607 | default) | |
608 | "List lines matching regexp: ") | |
aeab5be0 | 609 | nil nil nil 'regexp-history default t))) |
4a8f3b3d RS |
610 | (and (equal input "") default |
611 | (setq input default)) | |
aeab5be0 | 612 | input) |
a5dfed3e | 613 | current-prefix-arg)) |
d79dfd47 GM |
614 | (let* ((nlines (if nlines |
615 | (prefix-numeric-value nlines) | |
616 | list-matching-lines-default-context-lines)) | |
617 | (current-tab-width tab-width) | |
ae13fc3c | 618 | (inhibit-read-only t) |
d79dfd47 GM |
619 | ;; Minimum width of line number plus trailing colon. |
620 | (min-line-number-width 6) | |
9043c1c3 GM |
621 | ;; Width of line number prefix without the colon. Choose a |
622 | ;; width that's a multiple of `tab-width' in the original | |
623 | ;; buffer so that lines in *Occur* appear right. | |
624 | (line-number-width (1- (* (/ (- (+ min-line-number-width | |
625 | tab-width) | |
626 | 1) | |
627 | tab-width) | |
628 | tab-width))) | |
d79dfd47 GM |
629 | ;; Format string for line numbers. |
630 | (line-number-format (format "%%%dd" line-number-width)) | |
631 | (empty (make-string line-number-width ?\ )) | |
632 | (first t) | |
633 | ;;flag to prevent printing separator for first match | |
634 | (occur-num-matches 0) | |
635 | (buffer (current-buffer)) | |
636 | (dir default-directory) | |
637 | (linenum 1) | |
638 | (prevpos | |
639 | ;;position of most recent match | |
640 | (point-min)) | |
641 | (case-fold-search (and case-fold-search | |
642 | (isearch-no-upper-case-p regexp t))) | |
643 | (final-context-start | |
644 | ;; Marker to the start of context immediately following | |
645 | ;; the matched text in *Occur*. | |
646 | (make-marker))) | |
99976f85 RS |
647 | ;;; (save-excursion |
648 | ;;; (beginning-of-line) | |
649 | ;;; (setq linenum (1+ (count-lines (point-min) (point)))) | |
650 | ;;; (setq prevpos (point))) | |
016c214f RS |
651 | (save-excursion |
652 | (goto-char (point-min)) | |
653 | ;; Check first whether there are any matches at all. | |
654 | (if (not (re-search-forward regexp nil t)) | |
655 | (message "No matches for `%s'" regexp) | |
656 | ;; Back up, so the search loop below will find the first match. | |
657 | (goto-char (match-beginning 0)) | |
658 | (with-output-to-temp-buffer "*Occur*" | |
659 | (save-excursion | |
660 | (set-buffer standard-output) | |
661 | (setq default-directory dir) | |
662 | ;; We will insert the number of lines, and "lines", later. | |
663 | (insert " matching ") | |
664 | (let ((print-escape-newlines t)) | |
665 | (prin1 regexp)) | |
666 | (insert " in buffer " (buffer-name buffer) ?. ?\n) | |
667 | (occur-mode) | |
668 | (setq occur-buffer buffer) | |
669 | (setq occur-nlines nlines) | |
a41284da RS |
670 | (setq occur-command-arguments |
671 | (list regexp nlines))) | |
016c214f | 672 | (if (eq buffer standard-output) |
91c6bdc0 | 673 | (goto-char (point-max))) |
016c214f RS |
674 | (save-excursion |
675 | ;; Find next match, but give up if prev match was at end of buffer. | |
dd4e0e55 | 676 | (while (and (not (eobp)) |
016c214f RS |
677 | (re-search-forward regexp nil t)) |
678 | (goto-char (match-beginning 0)) | |
679 | (beginning-of-line) | |
680 | (save-match-data | |
681 | (setq linenum (+ linenum (count-lines prevpos (point))))) | |
682 | (setq prevpos (point)) | |
683 | (goto-char (match-end 0)) | |
d79dfd47 GM |
684 | (let* (;;start point of text in source buffer to be put |
685 | ;;into *Occur* | |
686 | (start (save-excursion | |
016c214f | 687 | (goto-char (match-beginning 0)) |
e09d4033 RS |
688 | (forward-line (if (< nlines 0) |
689 | nlines | |
690 | (- nlines))) | |
016c214f | 691 | (point))) |
e09d4033 RS |
692 | ;; end point of text in source buffer to be put |
693 | ;; into *Occur* | |
d79dfd47 GM |
694 | (end (save-excursion |
695 | (goto-char (match-end 0)) | |
696 | (if (> nlines 0) | |
697 | (forward-line (1+ nlines)) | |
698 | (forward-line 1)) | |
699 | (point))) | |
e09d4033 | 700 | ;; Amount of context before matching text |
d79dfd47 | 701 | (match-beg (- (match-beginning 0) start)) |
e09d4033 | 702 | ;; Length of matching text |
d79dfd47 GM |
703 | (match-len (- (match-end 0) (match-beginning 0))) |
704 | (tag (format line-number-format linenum)) | |
e730be7f | 705 | tem |
0f0a7f7c | 706 | insertion-start |
e09d4033 | 707 | ;; Number of lines of context to show for current match. |
e730be7f | 708 | occur-marker |
e09d4033 RS |
709 | ;; Marker pointing to end of match in source buffer. |
710 | (text-beg | |
711 | ;; Marker pointing to start of text for one | |
712 | ;; match in *Occur*. | |
713 | (make-marker)) | |
e730be7f | 714 | (text-end |
e09d4033 RS |
715 | ;; Marker pointing to end of text for one match |
716 | ;; in *Occur*. | |
d79dfd47 | 717 | (make-marker))) |
016c214f | 718 | (save-excursion |
8d15583f RS |
719 | (setq occur-marker (make-marker)) |
720 | (set-marker occur-marker (point)) | |
016c214f | 721 | (set-buffer standard-output) |
8d15583f | 722 | (setq occur-num-matches (1+ occur-num-matches)) |
016c214f RS |
723 | (or first (zerop nlines) |
724 | (insert "--------\n")) | |
725 | (setq first nil) | |
d79dfd47 GM |
726 | (save-excursion |
727 | (set-buffer "*Occur*") | |
728 | (setq tab-width current-tab-width)) | |
e09d4033 RS |
729 | |
730 | ;; Insert matching text including context lines from | |
731 | ;; source buffer into *Occur* | |
8d15583f | 732 | (set-marker text-beg (point)) |
0f0a7f7c | 733 | (setq insertion-start (point)) |
016c214f | 734 | (insert-buffer-substring buffer start end) |
0f0a7f7c KH |
735 | (or (and (/= (+ start match-beg) end) |
736 | (with-current-buffer buffer | |
737 | (eq (char-before end) ?\n))) | |
738 | (insert "\n")) | |
e730be7f | 739 | (set-marker final-context-start |
0f0a7f7c KH |
740 | (+ (- (point) (- end (match-end 0))) |
741 | (if (save-excursion | |
742 | (set-buffer buffer) | |
743 | (save-excursion | |
744 | (goto-char (match-end 0)) | |
745 | (end-of-line) | |
746 | (bolp))) | |
747 | 1 0))) | |
8d15583f | 748 | (set-marker text-end (point)) |
e09d4033 RS |
749 | |
750 | ;; Highlight text that was matched. | |
8d15583f RS |
751 | (if list-matching-lines-face |
752 | (put-text-property | |
753 | (+ (marker-position text-beg) match-beg) | |
754 | (+ (marker-position text-beg) match-beg match-len) | |
755 | 'face list-matching-lines-face)) | |
756 | ||
e09d4033 RS |
757 | ;; `occur-point' property is used by occur-next and |
758 | ;; occur-prev to move between matching lines. | |
8d15583f RS |
759 | (put-text-property |
760 | (+ (marker-position text-beg) match-beg match-len) | |
761 | (+ (marker-position text-beg) match-beg match-len 1) | |
762 | 'occur-point t) | |
e09d4033 RS |
763 | |
764 | ;; Now go back to the start of the matching text | |
765 | ;; adding the space and colon to the start of each line. | |
0f0a7f7c | 766 | (goto-char insertion-start) |
e09d4033 | 767 | ;; Insert space and colon for lines of context before match. |
8d15583f RS |
768 | (setq tem (if (< linenum nlines) |
769 | (- nlines linenum) | |
770 | nlines)) | |
016c214f RS |
771 | (while (> tem 0) |
772 | (insert empty ?:) | |
773 | (forward-line 1) | |
774 | (setq tem (1- tem))) | |
e09d4033 RS |
775 | |
776 | ;; Insert line number and colon for the lines of | |
777 | ;; matching text. | |
778 | (let ((this-linenum linenum)) | |
016c214f RS |
779 | (while (< (point) final-context-start) |
780 | (if (null tag) | |
d79dfd47 | 781 | (setq tag (format line-number-format this-linenum))) |
016c214f | 782 | (insert tag ?:) |
016c214f RS |
783 | (forward-line 1) |
784 | (setq tag nil) | |
785 | (setq this-linenum (1+ this-linenum))) | |
0f0a7f7c | 786 | (while (and (not (eobp)) (<= (point) final-context-start)) |
016c214f RS |
787 | (insert empty ?:) |
788 | (forward-line 1) | |
789 | (setq this-linenum (1+ this-linenum)))) | |
e09d4033 RS |
790 | |
791 | ;; Insert space and colon for lines of context after match. | |
8d15583f | 792 | (while (and (< (point) (point-max)) (< tem nlines)) |
016c214f RS |
793 | (insert empty ?:) |
794 | (forward-line 1) | |
795 | (setq tem (1+ tem))) | |
8d15583f RS |
796 | |
797 | ;; Add text properties. The `occur' prop is used to | |
798 | ;; store the marker of the matching text in the | |
799 | ;; source buffer. | |
2ddf19df EZ |
800 | (add-text-properties |
801 | (marker-position text-beg) (- (marker-position text-end) 1) | |
802 | '(mouse-face highlight | |
75f70c1c | 803 | help-echo "mouse-2: go to this occurrence")) |
8d15583f | 804 | (put-text-property (marker-position text-beg) |
e09d4033 | 805 | (marker-position text-end) |
8d15583f | 806 | 'occur occur-marker) |
016c214f RS |
807 | (goto-char (point-max))) |
808 | (forward-line 1))) | |
809 | (set-buffer standard-output) | |
e09d4033 RS |
810 | ;; Go back to top of *Occur* and finish off by printing the |
811 | ;; number of matching lines. | |
016c214f | 812 | (goto-char (point-min)) |
65b4665c | 813 | (let ((message-string |
8d15583f | 814 | (if (= occur-num-matches 1) |
65b4665c | 815 | "1 line" |
8d15583f | 816 | (format "%d lines" occur-num-matches)))) |
65b4665c RS |
817 | (insert message-string) |
818 | (if (interactive-p) | |
5ddf4bda KH |
819 | (message "%s matched" message-string))) |
820 | (setq buffer-read-only t))))))) | |
698e1804 | 821 | \f |
81bdc14d RS |
822 | ;; It would be nice to use \\[...], but there is no reasonable way |
823 | ;; to make that display both SPC and Y. | |
698e1804 RS |
824 | (defconst query-replace-help |
825 | "Type Space or `y' to replace one match, Delete or `n' to skip to next, | |
be44f62c | 826 | RET or `q' to exit, Period to replace one match and exit, |
698e1804 RS |
827 | Comma to replace but not move point immediately, |
828 | C-r to enter recursive edit (\\[exit-recursive-edit] to get out again), | |
829 | C-w to delete match and recursive edit, | |
830 | C-l to clear the screen, redisplay, and offer same replacement again, | |
831 | ! to replace all remaining matches with no more questions, | |
7ce278f3 GM |
832 | ^ to move point back to previous match, |
833 | E to edit the replacement string" | |
f54701d1 | 834 | "Help message while in `query-replace'.") |
698e1804 | 835 | |
81bdc14d RS |
836 | (defvar query-replace-map (make-sparse-keymap) |
837 | "Keymap that defines the responses to questions in `query-replace'. | |
838 | The \"bindings\" in this map are not commands; they are answers. | |
839 | The valid answers include `act', `skip', `act-and-show', | |
840 | `exit', `act-and-exit', `edit', `delete-and-edit', `recenter', | |
d9121bc0 | 841 | `automatic', `backup', `exit-prefix', and `help'.") |
81bdc14d RS |
842 | |
843 | (define-key query-replace-map " " 'act) | |
844 | (define-key query-replace-map "\d" 'skip) | |
845 | (define-key query-replace-map [delete] 'skip) | |
9275e5e3 | 846 | (define-key query-replace-map [backspace] 'skip) |
81bdc14d RS |
847 | (define-key query-replace-map "y" 'act) |
848 | (define-key query-replace-map "n" 'skip) | |
633a305a RS |
849 | (define-key query-replace-map "Y" 'act) |
850 | (define-key query-replace-map "N" 'skip) | |
34724fcb | 851 | (define-key query-replace-map "e" 'edit-replacement) |
7ce278f3 | 852 | (define-key query-replace-map "E" 'edit-replacement) |
81bdc14d | 853 | (define-key query-replace-map "," 'act-and-show) |
81bdc14d | 854 | (define-key query-replace-map "q" 'exit) |
919592c0 | 855 | (define-key query-replace-map "\r" 'exit) |
384c7da4 | 856 | (define-key query-replace-map [return] 'exit) |
81bdc14d RS |
857 | (define-key query-replace-map "." 'act-and-exit) |
858 | (define-key query-replace-map "\C-r" 'edit) | |
859 | (define-key query-replace-map "\C-w" 'delete-and-edit) | |
860 | (define-key query-replace-map "\C-l" 'recenter) | |
861 | (define-key query-replace-map "!" 'automatic) | |
862 | (define-key query-replace-map "^" 'backup) | |
863 | (define-key query-replace-map "\C-h" 'help) | |
e731045a KH |
864 | (define-key query-replace-map [f1] 'help) |
865 | (define-key query-replace-map [help] 'help) | |
81bdc14d | 866 | (define-key query-replace-map "?" 'help) |
bc6312e1 RS |
867 | (define-key query-replace-map "\C-g" 'quit) |
868 | (define-key query-replace-map "\C-]" 'quit) | |
d9121bc0 RS |
869 | (define-key query-replace-map "\e" 'exit-prefix) |
870 | (define-key query-replace-map [escape] 'exit-prefix) | |
81bdc14d | 871 | |
84482eb3 | 872 | (defun replace-match-string-symbols (n) |
e730be7f DL |
873 | "Process a list (and any sub-lists), expanding certain symbols. |
874 | Symbol Expands To | |
875 | N (match-string N) (where N is a string of digits) | |
876 | #N (string-to-number (match-string N)) | |
877 | & (match-string 0) | |
878 | #& (string-to-number (match-string 0)) | |
879 | ||
880 | Note that these symbols must be preceeded by a backslash in order to | |
881 | type them." | |
84482eb3 RS |
882 | (while n |
883 | (cond | |
884 | ((consp (car n)) | |
885 | (replace-match-string-symbols (car n))) ;Process sub-list | |
886 | ((symbolp (car n)) | |
887 | (let ((name (symbol-name (car n)))) | |
888 | (cond | |
889 | ((string-match "^[0-9]+$" name) | |
890 | (setcar n (list 'match-string (string-to-number name)))) | |
891 | ((string-match "^#[0-9]+$" name) | |
892 | (setcar n (list 'string-to-number | |
893 | (list 'match-string | |
894 | (string-to-number (substring name 1)))))) | |
895 | ((string= "&" name) | |
896 | (setcar n '(match-string 0))) | |
897 | ((string= "#&" name) | |
898 | (setcar n '(string-to-number (match-string 0)))))))) | |
899 | (setq n (cdr n)))) | |
900 | ||
901 | (defun replace-eval-replacement (expression replace-count) | |
902 | (let ((replacement (eval expression))) | |
903 | (if (stringp replacement) | |
904 | replacement | |
905 | (prin1-to-string replacement t)))) | |
906 | ||
907 | (defun replace-loop-through-replacements (data replace-count) | |
908 | ;; DATA is a vector contaning the following values: | |
909 | ;; 0 next-rotate-count | |
910 | ;; 1 repeat-count | |
911 | ;; 2 next-replacement | |
912 | ;; 3 replacements | |
913 | (if (= (aref data 0) replace-count) | |
914 | (progn | |
915 | (aset data 0 (+ replace-count (aref data 1))) | |
916 | (let ((next (cdr (aref data 2)))) | |
917 | (aset data 2 (if (consp next) next (aref data 3)))))) | |
918 | (car (aref data 2))) | |
919 | ||
99a7559f | 920 | (defun perform-replace (from-string replacements |
698e1804 | 921 | query-flag regexp-flag delimited-flag |
99a7559f | 922 | &optional repeat-count map start end) |
698e1804 RS |
923 | "Subroutine of `query-replace'. Its complexity handles interactive queries. |
924 | Don't use this in your own program unless you want to query and set the mark | |
925 | just as `query-replace' does. Instead, write a simple loop like this: | |
698665d1 GM |
926 | |
927 | (while (re-search-forward \"foo[ \\t]+bar\" nil t) | |
698e1804 | 928 | (replace-match \"foobar\" nil nil)) |
698665d1 GM |
929 | |
930 | which will run faster and probably do exactly what you want. Please | |
931 | see the documentation of `replace-match' to find out how to simulate | |
932 | `case-replace'." | |
81bdc14d | 933 | (or map (setq map query-replace-map)) |
1c1dadab RS |
934 | (and query-flag minibuffer-auto-raise |
935 | (raise-frame (window-frame (minibuffer-window)))) | |
698e1804 RS |
936 | (let ((nocasify (not (and case-fold-search case-replace |
937 | (string-equal from-string | |
938 | (downcase from-string))))) | |
5a78b471 KH |
939 | (case-fold-search (and case-fold-search |
940 | (string-equal from-string | |
941 | (downcase from-string)))) | |
698e1804 RS |
942 | (literal (not regexp-flag)) |
943 | (search-function (if regexp-flag 're-search-forward 'search-forward)) | |
944 | (search-string from-string) | |
e5d77022 | 945 | (real-match-data nil) ; the match data for the current match |
698e1804 | 946 | (next-replacement nil) |
698e1804 RS |
947 | (keep-going t) |
948 | (stack nil) | |
698e1804 | 949 | (replace-count 0) |
5632eb27 PE |
950 | (nonempty-match nil) |
951 | ||
7ef5c431 KH |
952 | ;; If non-nil, it is marker saying where in the buffer to stop. |
953 | (limit nil) | |
954 | ||
5632eb27 PE |
955 | ;; Data for the next match. If a cons, it has the same format as |
956 | ;; (match-data); otherwise it is t if a match is possible at point. | |
ae4eb03c | 957 | (match-again t) |
5632eb27 | 958 | |
02d95a27 RS |
959 | (message |
960 | (if query-flag | |
961 | (substitute-command-keys | |
962 | "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) ")))) | |
7ef5c431 KH |
963 | |
964 | ;; If region is active, in Transient Mark mode, operate on region. | |
47d72254 GM |
965 | (when start |
966 | (setq limit (copy-marker (max start end))) | |
967 | (goto-char (min start end)) | |
968 | (deactivate-mark)) | |
84482eb3 RS |
969 | |
970 | ;; REPLACEMENTS is either a string, a list of strings, or a cons cell | |
971 | ;; containing a function and its first argument. The function is | |
972 | ;; called to generate each replacement like this: | |
973 | ;; (funcall (car replacements) (cdr replacements) replace-count) | |
974 | ;; It must return a string. | |
975 | (cond | |
976 | ((stringp replacements) | |
977 | (setq next-replacement replacements | |
978 | replacements nil)) | |
979 | ((stringp (car replacements)) ; If it isn't a string, it must be a cons | |
980 | (or repeat-count (setq repeat-count 1)) | |
981 | (setq replacements (cons 'replace-loop-through-replacements | |
982 | (vector repeat-count repeat-count | |
983 | replacements replacements))))) | |
984 | ||
698e1804 RS |
985 | (if delimited-flag |
986 | (setq search-function 're-search-forward | |
987 | search-string (concat "\\b" | |
988 | (if regexp-flag from-string | |
989 | (regexp-quote from-string)) | |
990 | "\\b"))) | |
991 | (push-mark) | |
992 | (undo-boundary) | |
e782e9f2 RS |
993 | (unwind-protect |
994 | ;; Loop finding occurrences that perhaps should be replaced. | |
995 | (while (and keep-going | |
996 | (not (eobp)) | |
5632eb27 PE |
997 | ;; Use the next match if it is already known; |
998 | ;; otherwise, search for a match after moving forward | |
999 | ;; one char if progress is required. | |
1000 | (setq real-match-data | |
1001 | (if (consp match-again) | |
1002 | (progn (goto-char (nth 1 match-again)) | |
1003 | match-again) | |
1004 | (and (or match-again | |
889617de GM |
1005 | ;; MATCH-AGAIN non-nil means we |
1006 | ;; accept an adjacent match. If | |
1007 | ;; we don't, move one char to the | |
1008 | ;; right. This takes us a | |
1009 | ;; character too far at the end, | |
1010 | ;; but this is undone after the | |
1011 | ;; while-loop. | |
8f3ff96b | 1012 | (progn (forward-char 1) (not (eobp)))) |
7ef5c431 | 1013 | (funcall search-function search-string limit t) |
5632eb27 PE |
1014 | ;; For speed, use only integers and |
1015 | ;; reuse the list used last time. | |
1016 | (match-data t real-match-data))))) | |
1c4fe319 RS |
1017 | ;; Optionally ignore matches that have a read-only property. |
1018 | (unless (and query-replace-skip-read-only | |
1019 | (text-property-not-all | |
1020 | (match-beginning 0) (match-end 0) | |
1021 | 'read-only nil)) | |
1022 | ||
1023 | ;; Record whether the match is nonempty, to avoid an infinite loop | |
1024 | ;; repeatedly matching the same empty string. | |
1025 | (setq nonempty-match | |
1026 | (/= (nth 0 real-match-data) (nth 1 real-match-data))) | |
1027 | ||
1028 | ;; If the match is empty, record that the next one can't be | |
1029 | ;; adjacent. | |
1030 | ||
1031 | ;; Otherwise, if matching a regular expression, do the next | |
1032 | ;; match now, since the replacement for this match may | |
1033 | ;; affect whether the next match is adjacent to this one. | |
1034 | ;; If that match is empty, don't use it. | |
1035 | (setq match-again | |
1036 | (and nonempty-match | |
1037 | (or (not regexp-flag) | |
1038 | (and (looking-at search-string) | |
1039 | (let ((match (match-data))) | |
1040 | (and (/= (nth 0 match) (nth 1 match)) | |
1041 | match)))))) | |
1042 | ||
1043 | ;; Calculate the replacement string, if necessary. | |
1044 | (when replacements | |
1045 | (set-match-data real-match-data) | |
1046 | (setq next-replacement | |
1047 | (funcall (car replacements) (cdr replacements) | |
1048 | replace-count))) | |
1049 | (if (not query-flag) | |
1050 | (let ((inhibit-read-only query-replace-skip-read-only)) | |
1051 | (set-match-data real-match-data) | |
1052 | (replace-match next-replacement nocasify literal) | |
1053 | (setq replace-count (1+ replace-count))) | |
1054 | (undo-boundary) | |
1055 | (let (done replaced key def) | |
1056 | ;; Loop reading commands until one of them sets done, | |
1057 | ;; which means it has finished handling this occurrence. | |
1058 | (while (not done) | |
1059 | (set-match-data real-match-data) | |
1060 | (replace-highlight (match-beginning 0) (match-end 0)) | |
1061 | ;; Bind message-log-max so we don't fill up the message log | |
1062 | ;; with a bunch of identical messages. | |
1063 | (let ((message-log-max nil)) | |
1064 | (message message from-string next-replacement)) | |
1065 | (setq key (read-event)) | |
1066 | ;; Necessary in case something happens during read-event | |
1067 | ;; that clobbers the match data. | |
1068 | (set-match-data real-match-data) | |
1069 | (setq key (vector key)) | |
1070 | (setq def (lookup-key map key)) | |
1071 | ;; Restore the match data while we process the command. | |
1072 | (cond ((eq def 'help) | |
1073 | (with-output-to-temp-buffer "*Help*" | |
1074 | (princ | |
1075 | (concat "Query replacing " | |
1076 | (if regexp-flag "regexp " "") | |
1077 | from-string " with " | |
1078 | next-replacement ".\n\n" | |
1079 | (substitute-command-keys | |
1080 | query-replace-help))) | |
1081 | (with-current-buffer standard-output | |
1082 | (help-mode)))) | |
1083 | ((eq def 'exit) | |
1084 | (setq keep-going nil) | |
1085 | (setq done t)) | |
1086 | ((eq def 'backup) | |
1087 | (if stack | |
1088 | (let ((elt (car stack))) | |
1089 | (goto-char (car elt)) | |
1090 | (setq replaced (eq t (cdr elt))) | |
1091 | (or replaced | |
1092 | (set-match-data (cdr elt))) | |
1093 | (setq stack (cdr stack))) | |
1094 | (message "No previous match") | |
1095 | (ding 'no-terminate) | |
1096 | (sit-for 1))) | |
1097 | ((eq def 'act) | |
1098 | (or replaced | |
1099 | (progn | |
1100 | (replace-match next-replacement nocasify literal) | |
1101 | (setq replace-count (1+ replace-count)))) | |
1102 | (setq done t replaced t)) | |
1103 | ((eq def 'act-and-exit) | |
1104 | (or replaced | |
1105 | (progn | |
1106 | (replace-match next-replacement nocasify literal) | |
1107 | (setq replace-count (1+ replace-count)))) | |
1108 | (setq keep-going nil) | |
1109 | (setq done t replaced t)) | |
1110 | ((eq def 'act-and-show) | |
1111 | (if (not replaced) | |
1112 | (progn | |
1113 | (replace-match next-replacement nocasify literal) | |
1114 | (setq replace-count (1+ replace-count)) | |
1115 | (setq replaced t)))) | |
1116 | ((eq def 'automatic) | |
1117 | (or replaced | |
1118 | (progn | |
1119 | (replace-match next-replacement nocasify literal) | |
1120 | (setq replace-count (1+ replace-count)))) | |
1121 | (setq done t query-flag nil replaced t)) | |
1122 | ((eq def 'skip) | |
1123 | (setq done t)) | |
1124 | ((eq def 'recenter) | |
1125 | (recenter nil)) | |
1126 | ((eq def 'edit) | |
1127 | (let ((opos (point-marker))) | |
1128 | (goto-char (match-beginning 0)) | |
1129 | (save-excursion | |
1130 | (funcall search-function search-string limit t) | |
1131 | (setq real-match-data (match-data))) | |
86914dcc RS |
1132 | (save-excursion |
1133 | (save-window-excursion | |
1134 | (recursive-edit))) | |
1c4fe319 RS |
1135 | (goto-char opos)) |
1136 | (set-match-data real-match-data) | |
1137 | ;; Before we make the replacement, | |
1138 | ;; decide whether the search string | |
1139 | ;; can match again just after this match. | |
1140 | (if (and regexp-flag nonempty-match) | |
1141 | (setq match-again (and (looking-at search-string) | |
1142 | (match-data))))) | |
7ce278f3 | 1143 | |
1c4fe319 RS |
1144 | ;; Edit replacement. |
1145 | ((eq def 'edit-replacement) | |
1146 | (setq next-replacement | |
1147 | (read-input "Edit replacement string: " | |
1148 | next-replacement)) | |
1149 | (or replaced | |
1150 | (replace-match next-replacement nocasify literal)) | |
1151 | (setq done t)) | |
7ce278f3 | 1152 | |
1c4fe319 RS |
1153 | ((eq def 'delete-and-edit) |
1154 | (delete-region (match-beginning 0) (match-end 0)) | |
1155 | (set-match-data | |
1156 | (prog1 (match-data) | |
1157 | (save-excursion (recursive-edit)))) | |
1158 | (setq replaced t)) | |
1159 | ;; Note: we do not need to treat `exit-prefix' | |
1160 | ;; specially here, since we reread | |
1161 | ;; any unrecognized character. | |
1162 | (t | |
1163 | (setq this-command 'mode-exited) | |
1164 | (setq keep-going nil) | |
1165 | (setq unread-command-events | |
1166 | (append (listify-key-sequence key) | |
1167 | unread-command-events)) | |
1168 | (setq done t)))) | |
1169 | ;; Record previous position for ^ when we move on. | |
1170 | ;; Change markers to numbers in the match data | |
1171 | ;; since lots of markers slow down editing. | |
1172 | (setq stack | |
1173 | (cons (cons (point) | |
1174 | (or replaced (match-data t))) | |
1175 | stack)))))) | |
889617de GM |
1176 | |
1177 | ;; The code preventing adjacent regexp matches in the condition | |
1178 | ;; of the while-loop above will haven taken us one character | |
1179 | ;; beyond the last replacement. Undo that. | |
1180 | (when (and regexp-flag (not match-again) (> replace-count 0)) | |
1181 | (backward-char 1)) | |
1182 | ||
e782e9f2 | 1183 | (replace-dehighlight)) |
4d33492a RS |
1184 | (or unread-command-events |
1185 | (message "Replaced %d occurrence%s" | |
1186 | replace-count | |
1187 | (if (= replace-count 1) "" "s"))) | |
1188 | (and keep-going stack))) | |
698e1804 | 1189 | |
95807e68 | 1190 | (defcustom query-replace-highlight t |
9d325ebf RS |
1191 | "*Non-nil means to highlight words during query replacement." |
1192 | :type 'boolean | |
1193 | :group 'matching) | |
e782e9f2 RS |
1194 | |
1195 | (defvar replace-overlay nil) | |
1196 | ||
1197 | (defun replace-dehighlight () | |
1198 | (and replace-overlay | |
1199 | (progn | |
1200 | (delete-overlay replace-overlay) | |
1201 | (setq replace-overlay nil)))) | |
1202 | ||
1203 | (defun replace-highlight (start end) | |
1204 | (and query-replace-highlight | |
1205 | (progn | |
1206 | (or replace-overlay | |
1207 | (progn | |
1208 | (setq replace-overlay (make-overlay start end)) | |
1209 | (overlay-put replace-overlay 'face | |
e730be7f | 1210 | (if (facep 'query-replace) |
e782e9f2 RS |
1211 | 'query-replace 'region)))) |
1212 | (move-overlay replace-overlay start end (current-buffer))))) | |
1213 | ||
c88ab9ce | 1214 | ;;; replace.el ends here |