Mercurial > hg > xemacs-beta
annotate lisp/replace.el @ 5750:66d2f63df75f
Correct some spelling and formatting in behavior.el.
Mentioned in tracker issue 826, the third thing mentioned there (the file
name at the bottom of the file) had already been fixed.
lisp/ChangeLog addition:
2013-08-05 Aidan Kehoe <kehoea@parhasard.net>
* behavior.el:
(override-behavior):
Correct some spelling and formatting here, thank you Steven
Mitchell in tracker issue 826.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 05 Aug 2013 10:05:32 +0100 |
| parents | c6b1500299a7 |
| children | 0bddb59072b6 |
| rev | line source |
|---|---|
| 428 | 1 ;;; replace.el --- search and replace commands for XEmacs. |
| 2 | |
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3 ;; Copyright (C) 1985-7, 1992, 1994, 1997, 2003, 2012 Free Software Foundation, Inc. |
| 428 | 4 |
| 5 ;; Maintainer: XEmacs Development Team | |
| 6 ;; Keywords: dumped, matching | |
| 7 | |
| 8 ;; This file is part of XEmacs. | |
| 9 | |
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10 ;; XEmacs is free software: you can redistribute it and/or modify it |
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11 ;; under the terms of the GNU General Public License as published by the |
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12 ;; Free Software Foundation, either version 3 of the License, or (at your |
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13 ;; option) any later version. |
| 428 | 14 |
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15 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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16 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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17 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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18 ;; for more details. |
| 428 | 19 |
| 20 ;; You should have received a copy of the GNU General Public License | |
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21 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 428 | 22 |
| 23 ;;; Synched up with: FSF 19.34 [Partially]. | |
| 24 | |
| 25 ;;; Commentary: | |
| 26 | |
| 27 ;; This file is dumped with XEmacs. | |
| 28 | |
| 29 ;; This package supplies the string and regular-expression replace functions | |
| 30 ;; documented in the XEmacs Reference Manual. | |
| 31 | |
| 32 ;; All the gettext calls are for XEmacs I18N3 message catalog support. | |
| 33 ;; (This is hopelessly broken and we should remove it. -sb) | |
| 34 | |
| 35 ;;; Code: | |
| 36 | |
| 37 (defvar case-replace t "\ | |
| 38 *Non-nil means `query-replace' should preserve case in replacements. | |
| 39 What this means is that `query-replace' will change the case of the | |
| 40 replacement text so that it matches the text that was replaced. | |
| 41 If this variable is nil, the replacement text will be inserted | |
| 42 exactly as it was specified by the user, irrespective of the case | |
| 43 of the text that was replaced. | |
| 44 | |
| 45 Note that this flag has no effect if `case-fold-search' is nil, | |
| 46 or if the replacement text has any uppercase letters in it.") | |
| 47 | |
| 48 (defvar query-replace-history nil) | |
| 49 | |
| 50 (defvar query-replace-interactive nil | |
| 51 "Non-nil means `query-replace' uses the last search string. | |
| 52 That becomes the \"string to replace\".") | |
| 53 | |
| 54 (defvar replace-search-function | |
| 55 (lambda (str limit) | |
| 56 (search-forward str limit t)) | |
| 444 | 57 "Function used by perform-replace to search forward for a string. It will be |
| 428 | 58 called with two arguments: the string to search for and a limit bounding the |
| 59 search.") | |
| 60 | |
| 61 (defvar replace-re-search-function | |
| 62 (lambda (regexp limit) | |
| 63 (re-search-forward regexp limit t)) | |
| 64 "Function used by perform-replace to search forward for a regular | |
| 65 expression. It will be called with two arguments: the regexp to search for and | |
| 66 a limit bounding the search.") | |
| 67 | |
| 68 (defun query-replace-read-args (string regexp-flag) | |
| 69 (let (from to) | |
| 70 (if query-replace-interactive | |
| 71 (setq from (car (if regexp-flag regexp-search-ring search-ring))) | |
| 72 (setq from (read-from-minibuffer (format "%s: " (gettext string)) | |
| 73 nil nil nil | |
| 74 'query-replace-history))) | |
| 75 (setq to (read-from-minibuffer (format "%s %s with: " (gettext string) | |
| 76 from) | |
| 77 nil nil nil | |
| 78 'query-replace-history)) | |
| 79 (list from to current-prefix-arg))) | |
| 80 | |
| 81 ;; As per suggestion from Per Abrahamsen, limit replacement to the region | |
| 82 ;; if the region is active. | |
| 83 (defun query-replace (from-string to-string &optional delimited) | |
| 84 "Replace some occurrences of FROM-STRING with TO-STRING. | |
| 85 As each match is found, the user must type a character saying | |
| 86 what to do with it. For directions, type \\[help-command] at that time. | |
| 87 | |
| 88 If `query-replace-interactive' is non-nil, the last incremental search | |
| 89 string is used as FROM-STRING--you don't have to specify it with the | |
| 90 minibuffer. | |
| 91 | |
| 92 Preserves case in each replacement if `case-replace' and `case-fold-search' | |
| 93 are non-nil and FROM-STRING has no uppercase letters. | |
| 94 \(Preserving case means that if the string matched is all caps, or capitalized, | |
| 95 then its replacement is upcased or capitalized.) | |
| 96 | |
| 97 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
| 98 only matches surrounded by word boundaries. | |
| 99 | |
| 100 To customize possible responses, change the \"bindings\" in `query-replace-map'." | |
| 101 (interactive (query-replace-read-args "Query replace" nil)) | |
| 102 (perform-replace from-string to-string t nil delimited)) | |
| 103 | |
| 104 (defun query-replace-regexp (regexp to-string &optional delimited) | |
| 105 "Replace some things after point matching REGEXP with TO-STRING. | |
| 106 As each match is found, the user must type a character saying | |
| 107 what to do with it. For directions, type \\[help-command] at that time. | |
| 108 | |
| 109 If `query-replace-interactive' is non-nil, the last incremental search | |
| 110 regexp is used as REGEXP--you don't have to specify it with the | |
| 111 minibuffer. | |
| 112 | |
| 113 Preserves case in each replacement if `case-replace' and `case-fold-search' | |
| 114 are non-nil and REGEXP has no uppercase letters. | |
| 115 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
| 116 only matches surrounded by word boundaries. | |
| 117 In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, | |
| 118 and `\\=\\N' (where N is a digit) stands for | |
| 119 whatever what matched the Nth `\\(...\\)' in REGEXP." | |
| 120 (interactive (query-replace-read-args "Query replace regexp" t)) | |
| 121 (perform-replace regexp to-string t t delimited)) | |
| 122 | |
| 123 ;;#### Not patently useful | |
| 124 (defun map-query-replace-regexp (regexp to-strings &optional arg) | |
| 125 "Replace some matches for REGEXP with various strings, in rotation. | |
| 126 The second argument TO-STRINGS contains the replacement strings, separated | |
| 127 by spaces. This command works like `query-replace-regexp' except | |
| 128 that each successive replacement uses the next successive replacement string, | |
| 129 wrapping around from the last such string to the first. | |
| 130 | |
| 131 Non-interactively, TO-STRINGS may be a list of replacement strings. | |
| 132 | |
| 133 If `query-replace-interactive' is non-nil, the last incremental search | |
| 134 regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
| 135 | |
| 136 A prefix argument N says to use each replacement string N times | |
| 137 before rotating to the next." | |
| 138 (interactive | |
| 139 (let (from to) | |
| 140 (setq from (if query-replace-interactive | |
| 141 (car regexp-search-ring) | |
| 142 (read-from-minibuffer "Map query replace (regexp): " | |
| 143 nil nil nil | |
| 144 'query-replace-history))) | |
| 145 (setq to (read-from-minibuffer | |
| 146 (format "Query replace %s with (space-separated strings): " | |
| 147 from) | |
| 148 nil nil nil | |
| 149 'query-replace-history)) | |
| 150 (list from to current-prefix-arg))) | |
| 151 (let (replacements) | |
| 152 (if (listp to-strings) | |
| 153 (setq replacements to-strings) | |
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154 (while (not (eql (length to-strings) 0)) |
| 428 | 155 (if (string-match " " to-strings) |
| 156 (setq replacements | |
| 157 (append replacements | |
| 158 (list (substring to-strings 0 | |
| 159 (string-match " " to-strings)))) | |
| 160 to-strings (substring to-strings | |
| 161 (1+ (string-match " " to-strings)))) | |
| 162 (setq replacements (append replacements (list to-strings)) | |
| 163 to-strings "")))) | |
| 164 (perform-replace regexp replacements t t nil arg))) | |
| 165 | |
| 166 (defun replace-string (from-string to-string &optional delimited) | |
| 167 "Replace occurrences of FROM-STRING with TO-STRING. | |
| 168 Preserve case in each match if `case-replace' and `case-fold-search' | |
| 169 are non-nil and FROM-STRING has no uppercase letters. | |
| 170 \(Preserving case means that if the string matched is all caps, or capitalized, | |
| 171 then its replacement is upcased or capitalized.) | |
| 172 | |
| 173 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
| 174 only matches surrounded by word boundaries. | |
| 175 | |
| 176 If `query-replace-interactive' is non-nil, the last incremental search | |
| 177 string is used as FROM-STRING--you don't have to specify it with the | |
| 178 minibuffer. | |
| 179 | |
| 180 This function is usually the wrong thing to use in a Lisp program. | |
| 181 What you probably want is a loop like this: | |
| 182 (while (search-forward FROM-STRING nil t) | |
| 183 (replace-match TO-STRING nil t)) | |
| 184 which will run faster and will not set the mark or print anything." | |
| 185 (interactive (query-replace-read-args "Replace string" nil)) | |
| 186 (perform-replace from-string to-string nil nil delimited)) | |
| 187 | |
| 188 (defun replace-regexp (regexp to-string &optional delimited) | |
| 189 "Replace things after point matching REGEXP with TO-STRING. | |
| 190 Preserve case in each match if `case-replace' and `case-fold-search' | |
| 191 are non-nil and REGEXP has no uppercase letters. | |
| 192 \(Preserving case means that if the string matched is all caps, or capitalized, | |
| 193 then its replacement is upcased or capitalized.) | |
| 194 | |
| 195 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
| 196 only matches surrounded by word boundaries. | |
| 197 In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, | |
| 198 and `\\=\\N' (where N is a digit) stands for | |
| 199 whatever what matched the Nth `\\(...\\)' in REGEXP. | |
| 200 | |
| 201 If `query-replace-interactive' is non-nil, the last incremental search | |
| 202 regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
| 203 | |
| 204 This function is usually the wrong thing to use in a Lisp program. | |
| 205 What you probably want is a loop like this: | |
| 206 (while (re-search-forward REGEXP nil t) | |
| 207 (replace-match TO-STRING nil nil)) | |
| 208 which will run faster and will not set the mark or print anything." | |
| 209 (interactive (query-replace-read-args "Replace regexp" t)) | |
| 210 (perform-replace regexp to-string nil t delimited)) | |
| 211 | |
| 212 | |
| 1069 | 213 |
| 214 ;; gse wonders: Is there a better place for this to go? Might other packages | |
| 215 ;; want to use it? | |
| 428 | 216 (defvar regexp-history nil |
| 217 "History list for some commands that read regular expressions.") | |
| 218 | |
| 1069 | 219 (defun operate-on-non-matching-lines (regexp delete kill &optional beg end) |
| 220 "Internal function used by delete-non-matching-lines, | |
| 221 kill-non-matching-lines, and copy-matching-lines. | |
| 222 | |
| 223 REGEXP is a regular expression to *not* match when performing | |
| 224 operations. | |
| 225 | |
| 226 If DELETE is non-nil, the lines of text are deleted. It doesn't make | |
| 227 sense to set this to nil if KILL is nil -- nothing will happen. | |
| 228 | |
| 229 If KILL is non-nil, the lines of text are stored in the kill ring (as | |
| 230 one block of text). | |
| 231 | |
| 232 BEG and END, if non-nil, specify the start and end locations to work | |
| 233 within. If these are nil, point and point-max are used. | |
| 234 | |
| 235 A match split across lines preserves all the lines it lies in. | |
| 236 Applies to all lines after point. | |
| 237 | |
| 238 Returns the number of lines matched." | |
| 239 (with-search-caps-disable-folding regexp t | |
| 240 (save-excursion | |
| 241 ;; Move to a beginning point if specified. | |
| 242 (when beg (goto-char beg)) | |
| 243 ;; Always start on the beginning of a line. | |
| 244 (or (bolp) (forward-line 1)) | |
| 245 | |
| 246 (let ((matched-text nil) | |
| 247 (curmatch-start (point)) | |
| 2610 | 248 (limit (copy-marker (point-max))) |
| 249 (matched-text-buffer (generate-new-buffer " *matched-text*")) | |
| 250 lines-matched) | |
| 1069 | 251 ;; Limit search if limits were specified. |
| 252 (when end (setq limit (copy-marker end))) | |
| 253 | |
| 254 ;; Search. Stop if we are at end of buffer or outside the | |
| 255 ;; limit. | |
| 256 (while (not (or | |
| 257 (eobp) | |
| 258 (and limit (>= (point) limit)))) | |
| 259 ;; curmatch-start is first char not preserved by previous match. | |
| 260 (if (not (re-search-forward regexp limit 'move)) | |
| 261 (let ((curmatch-end limit)) | |
| 2610 | 262 (append-to-buffer matched-text-buffer curmatch-start curmatch-end) |
| 1069 | 263 (if delete (delete-region curmatch-start curmatch-end))) |
| 264 (let ((curmatch-end (save-excursion (goto-char (match-beginning 0)) | |
| 2610 | 265 (beginning-of-line) |
| 266 (point)))) | |
| 1069 | 267 ;; Now curmatch-end is first char preserved by the new match. |
| 268 (if (< curmatch-start curmatch-end) | |
| 269 (progn | |
| 2610 | 270 (append-to-buffer matched-text-buffer curmatch-start curmatch-end) |
| 1069 | 271 (if delete (delete-region curmatch-start curmatch-end)))))) |
| 272 (setq curmatch-start (save-excursion (forward-line 1) | |
| 2610 | 273 (point))) |
| 1069 | 274 ;; If the match was empty, avoid matching again at same place. |
| 275 (and (not (eobp)) (= (match-beginning 0) (match-end 0)) | |
| 276 (forward-char 1))) | |
| 277 | |
| 278 ;; If any lines were matched and KILL is non-nil, insert the | |
| 279 ;; matched lines into the kill ring. | |
| 2610 | 280 (setq matched-text (buffer-string matched-text-buffer)) |
| 1069 | 281 (if (and matched-text kill) (kill-new matched-text)) |
| 282 | |
| 283 ;; Return the number of matched lines. | |
| 2610 | 284 (setq lines-matched |
| 285 (with-current-buffer matched-text-buffer | |
| 286 (count-lines (point-min) (point-max)))) | |
| 287 (kill-buffer matched-text-buffer) | |
| 288 lines-matched)))) | |
| 1069 | 289 |
| 428 | 290 (define-function 'keep-lines 'delete-non-matching-lines) |
| 291 (defun delete-non-matching-lines (regexp) | |
| 1069 | 292 "Delete lines that do not match REGEXP, from point to the end of the |
| 293 buffer (or within the region, if it is active)." | |
| 428 | 294 (interactive (list (read-from-minibuffer |
| 295 "Keep lines (containing match for regexp): " | |
| 296 nil nil nil 'regexp-history))) | |
| 1069 | 297 (let ((beg nil) |
| 298 (end nil) | |
| 299 (count nil)) | |
| 300 (when (region-active-p) | |
| 301 (setq beg (region-beginning)) | |
| 302 (setq end (region-end))) | |
| 303 (setq count (operate-on-non-matching-lines regexp t nil beg end)) | |
| 1476 | 304 (when (interactive-p) |
| 305 (message "%i lines deleted" count)))) | |
| 1069 | 306 |
| 307 (defun kill-non-matching-lines (regexp) | |
| 308 "Delete the lines that do not match REGEXP, from point to the end of | |
| 309 the buffer (or within the region, if it is active). The deleted lines | |
| 310 are placed in the kill ring as one block of text." | |
| 311 (interactive (list (read-from-minibuffer | |
| 312 "Kill non-matching lines (regexp): " | |
| 313 nil nil nil 'regexp-history))) | |
| 314 (let ((beg nil) | |
| 315 (end nil) | |
| 316 (count nil)) | |
| 317 (when (region-active-p) | |
| 318 (setq beg (region-beginning)) | |
| 319 (setq end (region-end))) | |
| 320 (setq count (operate-on-non-matching-lines regexp t t beg end)) | |
| 1476 | 321 (when (interactive-p) |
| 322 (message "%i lines killed" count)))) | |
| 1069 | 323 |
| 324 (defun copy-non-matching-lines (regexp) | |
| 325 "Find all lines that do not match REGEXP from point to the end of the | |
| 326 buffer (or within the region, if it is active), and place them in the | |
| 327 kill ring as one block of text." | |
| 328 (interactive (list (read-from-minibuffer | |
| 329 "Copy non-matching lines (regexp): " | |
| 330 nil nil nil 'regexp-history))) | |
| 331 (let ((beg nil) | |
| 332 (end nil) | |
| 333 (count nil)) | |
| 334 (when (region-active-p) | |
| 335 (setq beg (region-beginning)) | |
| 336 (setq end (region-end))) | |
| 337 (setq count (operate-on-non-matching-lines regexp nil t beg end)) | |
| 1476 | 338 (when (interactive-p) |
| 339 (message "%i lines copied" count)))) | |
| 1069 | 340 |
| 341 (defun operate-on-matching-lines (regexp delete kill &optional beg end) | |
| 342 "Internal function used by delete-matching-lines, kill-matching-lines, | |
| 343 and copy-matching-lines. | |
| 344 | |
| 345 If DELETE is non-nil, the lines of text are deleted. It doesn't make | |
| 346 sense to set this to nil if KILL is nil -- nothing will happen. | |
| 347 | |
| 348 If KILL is non-nil, the lines of text are stored in the kill ring (as | |
| 349 one block of text). | |
| 350 | |
| 351 BEG and END, if non-nil, specify the start and end locations to work | |
| 352 within. If these are nil, point and point-max are used. | |
| 353 | |
| 354 If a match is split across lines, all the lines it lies in are deleted. | |
| 355 Applies to lines after point. | |
| 356 Returns the number of lines matched." | |
| 357 (with-search-caps-disable-folding regexp t | |
| 428 | 358 (save-excursion |
| 1069 | 359 (let ((matched-text nil) |
| 360 (curmatch-start nil) | |
| 361 (curmatch-end nil) | |
| 2610 | 362 (limit nil) |
| 363 (matched-text-buffer (generate-new-buffer " *matched-text*")) | |
| 364 lines-matched) | |
| 1069 | 365 ;; Limit search if limits were specified. |
| 366 (when beg (goto-char beg)) | |
| 367 (when end (setq limit (copy-marker end))) | |
| 368 | |
| 369 (while (and (not (eobp)) | |
| 370 (re-search-forward regexp limit t)) | |
| 371 (setq curmatch-start (save-excursion (goto-char (match-beginning 0)) | |
| 372 (beginning-of-line) | |
| 373 (point))) | |
| 374 (setq curmatch-end (progn (forward-line 1) (point))) | |
| 2610 | 375 (append-to-buffer matched-text-buffer curmatch-start curmatch-end) |
| 1069 | 376 (if delete (delete-region curmatch-start curmatch-end))) |
| 2610 | 377 (setq matched-text (buffer-string matched-text-buffer)) |
| 1069 | 378 (if (and matched-text kill) (kill-new matched-text)) |
| 379 | |
| 380 ;; Return the number of matched lines. | |
| 2610 | 381 (setq lines-matched |
| 382 (with-current-buffer matched-text-buffer | |
| 383 (count-lines (point-min) (point-max)))) | |
| 384 (kill-buffer matched-text-buffer) | |
| 385 lines-matched)))) | |
| 428 | 386 |
| 387 (define-function 'flush-lines 'delete-matching-lines) | |
| 388 (defun delete-matching-lines (regexp) | |
| 1069 | 389 "Delete the lines that match REGEXP, from point to the end of the |
| 390 buffer (or within the region, if it is active)." | |
| 428 | 391 (interactive (list (read-from-minibuffer |
| 392 "Flush lines (containing match for regexp): " | |
| 393 nil nil nil 'regexp-history))) | |
| 1069 | 394 (let ((beg nil) |
| 395 (end nil) | |
| 396 (count nil)) | |
| 397 (when (region-active-p) | |
| 398 (setq beg (region-beginning)) | |
| 399 (setq end (region-end))) | |
| 400 (setq count (operate-on-matching-lines regexp t nil beg end)) | |
| 1476 | 401 (when (interactive-p) |
| 402 (message "%i lines deleted" count)))) | |
| 1069 | 403 |
| 404 (defun kill-matching-lines (regexp) | |
| 405 "Delete the lines that match REGEXP, from point to the end of the | |
| 406 buffer (or within the region, if it is active). The deleted lines are | |
| 407 placed in the kill ring as one block of text." | |
| 408 (interactive (list (read-from-minibuffer | |
| 409 "Kill lines (containing match for regexp): " | |
| 410 nil nil nil 'regexp-history))) | |
| 411 (let ((beg nil) | |
| 412 (end nil) | |
| 413 (count nil)) | |
| 414 (when (region-active-p) | |
| 415 (setq beg (region-beginning)) | |
| 416 (setq end (region-end))) | |
| 417 (setq count (operate-on-matching-lines regexp t t beg end)) | |
| 1476 | 418 (when (interactive-p) |
| 419 (message "%i lines killed" count)))) | |
| 1069 | 420 |
| 421 (defun copy-matching-lines (regexp) | |
| 422 "Find all lines that match REGEXP from point to the end of the | |
| 423 buffer (or within the region, if it is active), and place them in the | |
| 424 kill ring as one block of text." | |
| 425 (interactive (list (read-from-minibuffer | |
| 426 "Copy lines (containing match for regexp): " | |
| 427 nil nil nil 'regexp-history))) | |
| 428 (let ((beg nil) | |
| 429 (end nil) | |
| 430 (count nil)) | |
| 431 (when (region-active-p) | |
| 432 (setq beg (region-beginning)) | |
| 433 (setq end (region-end))) | |
| 434 (setq count (operate-on-matching-lines regexp nil t beg end)) | |
| 1476 | 435 (when (interactive-p) |
| 436 (message "%i lines copied" count)))) | |
| 428 | 437 |
| 438 (define-function 'how-many 'count-matches) | |
| 439 (defun count-matches (regexp) | |
| 440 "Print number of matches for REGEXP following point." | |
| 441 (interactive (list (read-from-minibuffer | |
| 442 "How many matches for (regexp): " | |
| 443 nil nil nil 'regexp-history))) | |
| 444 (with-interactive-search-caps-disable-folding regexp t | |
| 445 (let ((count 0) opoint) | |
| 446 (save-excursion | |
| 447 (while (and (not (eobp)) | |
| 448 (progn (setq opoint (point)) | |
| 449 (re-search-forward regexp nil t))) | |
| 450 (if (= opoint (point)) | |
| 451 (forward-char 1) | |
| 452 (setq count (1+ count)))) | |
| 453 (message "%d occurrences" count))))) | |
| 454 | |
| 455 | |
| 3000 | 456 ;;; occur code moved to occur.el |
| 428 | 457 |
| 458 ;; It would be nice to use \\[...], but there is no reasonable way | |
| 459 ;; to make that display both SPC and Y. | |
| 460 (defconst query-replace-help | |
| 444 | 461 "Type Space or `y' to replace one match, Delete or `n' to skip to next, |
| 428 | 462 RET or `q' to exit, Period to replace one match and exit, |
| 463 Comma to replace but not move point immediately, | |
| 464 C-r to enter recursive edit (\\[exit-recursive-edit] to get out again), | |
| 465 C-w to delete match and recursive edit, | |
| 466 C-l to clear the frame, redisplay, and offer same replacement again, | |
| 467 ! to replace all remaining matches with no more questions, | |
| 468 ^ to move point back to previous match." | |
| 444 | 469 |
| 428 | 470 "Help message while in query-replace") |
| 471 | |
| 472 (defvar query-replace-map nil | |
| 473 "Keymap that defines the responses to questions in `query-replace'. | |
| 474 The \"bindings\" in this map are not commands; they are answers. | |
| 475 The valid answers include `act', `skip', `act-and-show', | |
| 476 `exit', `act-and-exit', `edit', `delete-and-edit', `recenter', | |
| 477 `automatic', `backup', `exit-prefix', and `help'.") | |
| 478 | |
| 479 ;; Why does it seem that ever file has a different method of doing this? | |
| 480 (if query-replace-map | |
| 481 nil | |
| 482 (let ((map (make-sparse-keymap))) | |
| 483 (set-keymap-name map 'query-replace-map) | |
| 484 (define-key map " " 'act) | |
| 485 (define-key map "\d" 'skip) | |
| 486 (define-key map [delete] 'skip) | |
| 487 (define-key map [backspace] 'skip) | |
| 488 (define-key map "y" 'act) | |
| 489 (define-key map "n" 'skip) | |
| 490 (define-key map "Y" 'act) | |
| 491 (define-key map "N" 'skip) | |
| 492 (define-key map "," 'act-and-show) | |
| 493 (define-key map [escape] 'exit) | |
| 494 (define-key map "q" 'exit) | |
| 495 (define-key map [return] 'exit) | |
| 496 (define-key map "." 'act-and-exit) | |
| 497 (define-key map "\C-r" 'edit) | |
| 498 (define-key map "\C-w" 'delete-and-edit) | |
| 499 (define-key map "\C-l" 'recenter) | |
| 500 (define-key map "!" 'automatic) | |
| 501 (define-key map "^" 'backup) | |
| 502 (define-key map [(control h)] 'help) ;; XEmacs change | |
| 503 (define-key map [f1] 'help) | |
| 504 (define-key map [help] 'help) | |
| 505 (define-key map "?" 'help) | |
| 506 (define-key map "\C-g" 'quit) | |
| 507 (define-key map "\C-]" 'quit) | |
| 508 ;FSFmacs (define-key map "\e" 'exit-prefix) | |
| 509 (define-key map [escape] 'exit-prefix) | |
| 444 | 510 |
| 428 | 511 (setq query-replace-map map))) |
| 512 | |
| 513 ;; isearch-mode is dumped, so don't autoload. | |
| 514 ;(autoload 'isearch-highlight "isearch") | |
| 515 | |
| 516 ;; XEmacs | |
| 517 (defun perform-replace-next-event (event) | |
| 442 | 518 (if search-highlight |
| 428 | 519 (let ((aborted t)) |
| 520 (unwind-protect | |
| 521 (progn | |
| 522 (if (match-beginning 0) | |
| 523 (isearch-highlight (match-beginning 0) (match-end 0))) | |
| 524 (next-command-event event) | |
| 525 (setq aborted nil)) | |
| 526 (isearch-dehighlight aborted))) | |
| 527 (next-command-event event))) | |
| 528 | |
| 529 (defun perform-replace (from-string replacements | |
| 530 query-flag regexp-flag delimited-flag | |
| 531 &optional repeat-count map) | |
| 532 "Subroutine of `query-replace'. Its complexity handles interactive queries. | |
| 533 Don't use this in your own program unless you want to query and set the mark | |
| 534 just as `query-replace' does. Instead, write a simple loop like this: | |
| 535 (while (re-search-forward \"foo[ \t]+bar\" nil t) | |
| 536 (replace-match \"foobar\" nil nil)) | |
| 537 which will run faster and probably do exactly what you want. | |
| 444 | 538 When searching for a match, this function uses |
| 539 `replace-search-function' and `replace-re-search-function'." | |
| 428 | 540 (or map (setq map query-replace-map)) |
| 541 (let* ((event (make-event)) | |
| 542 (nocasify (not (and case-fold-search case-replace | |
| 543 (string-equal from-string | |
| 544 (downcase from-string))))) | |
| 545 (literal (not regexp-flag)) | |
| 444 | 546 (search-function (if regexp-flag |
| 547 replace-re-search-function | |
| 428 | 548 replace-search-function)) |
| 549 (search-string from-string) | |
| 550 (real-match-data nil) ; the match data for the current match | |
| 551 (next-replacement nil) | |
| 552 (replacement-index 0) | |
| 553 (keep-going t) | |
| 554 (stack nil) | |
| 555 (next-rotate-count 0) | |
| 556 (replace-count 0) | |
| 557 (lastrepl nil) ;Position after last match considered. | |
| 558 ;; If non-nil, it is marker saying where in the buffer to | |
| 559 ;; stop. | |
| 560 (limit nil) | |
| 561 (match-again t) | |
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562 (recenter-last-op nil) ; Start cycling order with initial position. |
| 428 | 563 ;; XEmacs addition |
| 564 (qr-case-fold-search | |
| 565 (if (and case-fold-search search-caps-disable-folding) | |
| 566 (no-upper-case-p search-string regexp-flag) | |
| 567 case-fold-search)) | |
| 568 (message | |
| 569 (if query-flag | |
| 570 (substitute-command-keys | |
| 571 "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) ")))) | |
| 572 ;; If the region is active, operate on region. | |
| 573 (when (region-active-p) | |
| 574 ;; Original Per Abrahamsen's code simply narrowed the region, | |
| 575 ;; thus providing a visual indication of the search boundary. | |
| 576 ;; Stallman, on the other hand, handles it like this. | |
| 577 (setq limit (copy-marker (region-end))) | |
| 578 (goto-char (region-beginning)) | |
| 579 (zmacs-deactivate-region)) | |
| 580 (if (stringp replacements) | |
| 581 (setq next-replacement replacements) | |
| 582 (or repeat-count (setq repeat-count 1))) | |
| 583 (if delimited-flag | |
| 584 (setq search-function replace-re-search-function | |
| 585 search-string (concat "\\b" | |
| 586 (if regexp-flag from-string | |
| 587 (regexp-quote from-string)) | |
| 588 "\\b"))) | |
| 589 (push-mark) | |
| 590 (undo-boundary) | |
| 591 (unwind-protect | |
| 592 ;; Loop finding occurrences that perhaps should be replaced. | |
| 593 (while (and keep-going | |
| 594 (not (eobp)) | |
| 595 (or (null limit) (< (point) limit)) | |
| 596 (let ((case-fold-search qr-case-fold-search)) | |
| 597 (funcall search-function search-string limit)) | |
| 598 ;; If the search string matches immediately after | |
| 599 ;; the previous match, but it did not match there | |
| 600 ;; before the replacement was done, ignore the match. | |
| 601 (if (or (eq lastrepl (point)) | |
| 602 (and regexp-flag | |
| 603 (eq lastrepl (match-beginning 0)) | |
| 604 (not match-again))) | |
| 605 (if (or (eobp) | |
| 606 (and limit (>= (point) limit))) | |
| 607 nil | |
| 444 | 608 ;; Don't replace the null string |
| 428 | 609 ;; right after end of previous replacement. |
| 610 (forward-char 1) | |
| 611 (let ((case-fold-search qr-case-fold-search)) | |
| 612 (funcall search-function search-string limit))) | |
| 613 t)) | |
| 614 | |
| 615 ;; Save the data associated with the real match. | |
| 616 (setq real-match-data (match-data)) | |
| 617 | |
| 618 ;; Before we make the replacement, decide whether the search string | |
| 619 ;; can match again just after this match. | |
| 620 (if regexp-flag | |
| 444 | 621 (progn |
| 428 | 622 (setq match-again (looking-at search-string)) |
| 623 ;; XEmacs addition | |
| 624 (store-match-data real-match-data))) | |
| 625 ;; If time for a change, advance to next replacement string. | |
| 626 (if (and (listp replacements) | |
| 627 (= next-rotate-count replace-count)) | |
| 628 (progn | |
| 629 (setq next-rotate-count | |
| 630 (+ next-rotate-count repeat-count)) | |
| 631 (setq next-replacement (nth replacement-index replacements)) | |
| 632 (setq replacement-index (% (1+ replacement-index) (length replacements))))) | |
| 633 (if (not query-flag) | |
| 634 (progn | |
| 635 (store-match-data real-match-data) | |
| 636 (replace-match next-replacement nocasify literal) | |
| 637 (setq replace-count (1+ replace-count))) | |
| 638 (undo-boundary) | |
| 639 (let ((help-form | |
| 640 '(concat (format "Query replacing %s%s with %s.\n\n" | |
| 641 (if regexp-flag (gettext "regexp ") "") | |
| 642 from-string next-replacement) | |
| 643 (substitute-command-keys query-replace-help))) | |
| 644 done replaced def) | |
| 645 ;; Loop reading commands until one of them sets done, | |
| 646 ;; which means it has finished handling this occurrence. | |
| 647 (while (not done) | |
| 648 ;; Don't fill up the message log | |
| 649 ;; with a bunch of identical messages. | |
| 650 ;; XEmacs change | |
| 651 (display-message 'prompt | |
| 652 (format message from-string next-replacement)) | |
| 653 (perform-replace-next-event event) | |
| 654 (setq def (lookup-key map (vector event))) | |
| 655 ;; Restore the match data while we process the command. | |
| 656 (store-match-data real-match-data) | |
| 657 (cond ((eq def 'help) | |
| 658 (with-output-to-temp-buffer (gettext "*Help*") | |
| 659 (princ (concat | |
| 660 (format "Query replacing %s%s with %s.\n\n" | |
| 661 (if regexp-flag "regexp " "") | |
| 662 from-string next-replacement) | |
| 663 (substitute-command-keys | |
| 664 query-replace-help))) | |
| 665 (save-excursion | |
| 666 (set-buffer standard-output) | |
| 667 (help-mode)))) | |
| 668 ((eq def 'exit) | |
| 669 (setq keep-going nil) | |
| 670 (setq done t)) | |
| 671 ((eq def 'backup) | |
| 672 (if stack | |
| 673 (let ((elt (car stack))) | |
| 674 (goto-char (car elt)) | |
| 675 (setq replaced (eq t (cdr elt))) | |
| 676 (or replaced | |
| 677 (store-match-data (cdr elt))) | |
| 678 (setq stack (cdr stack))) | |
| 679 (message "No previous match") | |
| 680 (ding 'no-terminate) | |
| 681 (sit-for 1))) | |
| 682 ((eq def 'act) | |
| 683 (or replaced | |
| 684 (replace-match next-replacement nocasify literal)) | |
| 685 (setq done t replaced t)) | |
| 686 ((eq def 'act-and-exit) | |
| 687 (or replaced | |
| 688 (replace-match next-replacement nocasify literal)) | |
| 689 (setq keep-going nil) | |
| 690 (setq done t replaced t)) | |
| 691 ((eq def 'act-and-show) | |
| 692 (if (not replaced) | |
| 693 (progn | |
| 694 (replace-match next-replacement nocasify literal) | |
| 695 (store-match-data nil) | |
| 696 (setq replaced t)))) | |
| 697 ((eq def 'automatic) | |
| 698 (or replaced | |
| 699 (replace-match next-replacement nocasify literal)) | |
| 700 (setq done t query-flag nil replaced t)) | |
| 701 ((eq def 'skip) | |
| 702 (setq done t)) | |
| 703 ((eq def 'recenter) | |
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704 ;; `this-command' has the value `query-replace', |
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705 ;; so we need to bind it to `recenter-top-bottom' |
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706 ;; to allow it to detect a sequence of `C-l'. |
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707 (let ((this-command 'recenter-top-bottom) |
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708 (last-command 'recenter-top-bottom)) |
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709 (recenter-top-bottom))) |
| 428 | 710 ((eq def 'edit) |
| 711 (store-match-data | |
| 712 (prog1 (match-data) | |
| 713 (save-excursion (recursive-edit)))) | |
| 714 ;; Before we make the replacement, | |
| 715 ;; decide whether the search string | |
| 716 ;; can match again just after this match. | |
| 717 (if regexp-flag | |
| 718 (setq match-again (looking-at search-string)))) | |
| 719 ((eq def 'delete-and-edit) | |
| 720 (delete-region (match-beginning 0) (match-end 0)) | |
| 721 (store-match-data (prog1 (match-data) | |
| 722 (save-excursion (recursive-edit)))) | |
| 723 (setq replaced t)) | |
| 724 ;; Note: we do not need to treat `exit-prefix' | |
| 725 ;; specially here, since we reread | |
| 726 ;; any unrecognized character. | |
| 727 (t | |
| 728 (setq this-command 'mode-exited) | |
| 729 (setq keep-going nil) | |
| 730 (setq unread-command-events | |
| 731 (cons event unread-command-events)) | |
| 732 (setq done t)))) | |
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733 (unless (eq def 'recenter) |
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734 ;; Reset recenter cycling order to initial position. |
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735 (setq recenter-last-op nil)) |
| 428 | 736 ;; Record previous position for ^ when we move on. |
| 737 ;; Change markers to numbers in the match data | |
| 738 ;; since lots of markers slow down editing. | |
| 739 (setq stack | |
| 740 (cons (cons (point) | |
| 741 (or replaced | |
| 742 (match-data t))) | |
| 743 stack)) | |
| 744 (if replaced (setq replace-count (1+ replace-count))))) | |
| 745 (setq lastrepl (point))) | |
| 746 ;; Useless in XEmacs. We handle (de)highlighting through | |
| 747 ;; perform-replace-next-event. | |
| 748 ;(replace-dehighlight) | |
| 749 ) | |
| 750 (or unread-command-events | |
| 751 (message "Replaced %d occurrence%s" | |
| 752 replace-count | |
| 753 (if (= replace-count 1) "" "s"))) | |
| 754 (and keep-going stack))) | |
| 755 | |
| 756 ;; FSFmacs code: someone should port it. | |
| 757 | |
| 758 ;(defvar query-replace-highlight nil | |
| 759 ; "*Non-nil means to highlight words during query replacement.") | |
| 760 | |
| 761 ;(defvar replace-overlay nil) | |
| 762 | |
| 763 ;(defun replace-dehighlight () | |
| 764 ; (and replace-overlay | |
| 765 ; (progn | |
| 766 ; (delete-overlay replace-overlay) | |
| 767 ; (setq replace-overlay nil)))) | |
| 768 | |
| 769 ;(defun replace-highlight (start end) | |
| 770 ; (and query-replace-highlight | |
| 771 ; (progn | |
| 772 ; (or replace-overlay | |
| 773 ; (progn | |
| 774 ; (setq replace-overlay (make-overlay start end)) | |
| 775 ; (overlay-put replace-overlay 'face | |
| 776 ; (if (internal-find-face 'query-replace) | |
| 777 ; 'query-replace 'region)))) | |
| 778 ; (move-overlay replace-overlay start end (current-buffer))))) | |
| 779 | |
| 780 ;;; replace.el ends here |