Mercurial > hg > xemacs-beta
comparison lisp/replace.el @ 428:3ecd8885ac67 r21-2-22
Import from CVS: tag r21-2-22
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 11:28:15 +0200 |
| parents | |
| children | abe6d1db359e |
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| 427:0a0253eac470 | 428:3ecd8885ac67 |
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| 1 ;;; replace.el --- search and replace commands for XEmacs. | |
| 2 | |
| 3 ;; Copyright (C) 1985-7, 1992, 1994, 1997 Free Software Foundation, Inc. | |
| 4 | |
| 5 ;; Maintainer: XEmacs Development Team | |
| 6 ;; Keywords: dumped, matching | |
| 7 | |
| 8 ;; This file is part of XEmacs. | |
| 9 | |
| 10 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 11 ;; under the terms of the GNU General Public License as published by | |
| 12 ;; the Free Software Foundation; either version 2, or (at your option) | |
| 13 ;; any later version. | |
| 14 | |
| 15 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 ;; General Public License for more details. | |
| 19 | |
| 20 ;; You should have received a copy of the GNU General Public License | |
| 21 ;; along with XEmacs; see the file COPYING. If not, write to the Free | |
| 22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 23 ;; 02111-1307, USA. | |
| 24 | |
| 25 ;;; Synched up with: FSF 19.34 [Partially]. | |
| 26 | |
| 27 ;;; Commentary: | |
| 28 | |
| 29 ;; This file is dumped with XEmacs. | |
| 30 | |
| 31 ;; This package supplies the string and regular-expression replace functions | |
| 32 ;; documented in the XEmacs Reference Manual. | |
| 33 | |
| 34 ;; All the gettext calls are for XEmacs I18N3 message catalog support. | |
| 35 ;; (This is hopelessly broken and we should remove it. -sb) | |
| 36 | |
| 37 ;;; Code: | |
| 38 | |
| 39 (defvar case-replace t "\ | |
| 40 *Non-nil means `query-replace' should preserve case in replacements. | |
| 41 What this means is that `query-replace' will change the case of the | |
| 42 replacement text so that it matches the text that was replaced. | |
| 43 If this variable is nil, the replacement text will be inserted | |
| 44 exactly as it was specified by the user, irrespective of the case | |
| 45 of the text that was replaced. | |
| 46 | |
| 47 Note that this flag has no effect if `case-fold-search' is nil, | |
| 48 or if the replacement text has any uppercase letters in it.") | |
| 49 | |
| 50 (defvar query-replace-history nil) | |
| 51 | |
| 52 (defvar query-replace-interactive nil | |
| 53 "Non-nil means `query-replace' uses the last search string. | |
| 54 That becomes the \"string to replace\".") | |
| 55 | |
| 56 (defvar replace-search-function | |
| 57 (lambda (str limit) | |
| 58 (search-forward str limit t)) | |
| 59 "Function used by perform-replace to search forward for a string. It will be | |
| 60 called with two arguments: the string to search for and a limit bounding the | |
| 61 search.") | |
| 62 | |
| 63 (defvar replace-re-search-function | |
| 64 (lambda (regexp limit) | |
| 65 (re-search-forward regexp limit t)) | |
| 66 "Function used by perform-replace to search forward for a regular | |
| 67 expression. It will be called with two arguments: the regexp to search for and | |
| 68 a limit bounding the search.") | |
| 69 | |
| 70 (defun query-replace-read-args (string regexp-flag) | |
| 71 (let (from to) | |
| 72 (if query-replace-interactive | |
| 73 (setq from (car (if regexp-flag regexp-search-ring search-ring))) | |
| 74 (setq from (read-from-minibuffer (format "%s: " (gettext string)) | |
| 75 nil nil nil | |
| 76 'query-replace-history))) | |
| 77 (setq to (read-from-minibuffer (format "%s %s with: " (gettext string) | |
| 78 from) | |
| 79 nil nil nil | |
| 80 'query-replace-history)) | |
| 81 (list from to current-prefix-arg))) | |
| 82 | |
| 83 ;; As per suggestion from Per Abrahamsen, limit replacement to the region | |
| 84 ;; if the region is active. | |
| 85 (defun query-replace (from-string to-string &optional delimited) | |
| 86 "Replace some occurrences of FROM-STRING with TO-STRING. | |
| 87 As each match is found, the user must type a character saying | |
| 88 what to do with it. For directions, type \\[help-command] at that time. | |
| 89 | |
| 90 If `query-replace-interactive' is non-nil, the last incremental search | |
| 91 string is used as FROM-STRING--you don't have to specify it with the | |
| 92 minibuffer. | |
| 93 | |
| 94 Preserves case in each replacement if `case-replace' and `case-fold-search' | |
| 95 are non-nil and FROM-STRING has no uppercase letters. | |
| 96 \(Preserving case means that if the string matched is all caps, or capitalized, | |
| 97 then its replacement is upcased or capitalized.) | |
| 98 | |
| 99 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
| 100 only matches surrounded by word boundaries. | |
| 101 | |
| 102 To customize possible responses, change the \"bindings\" in `query-replace-map'." | |
| 103 (interactive (query-replace-read-args "Query replace" nil)) | |
| 104 (perform-replace from-string to-string t nil delimited)) | |
| 105 | |
| 106 (defun query-replace-regexp (regexp to-string &optional delimited) | |
| 107 "Replace some things after point matching REGEXP with TO-STRING. | |
| 108 As each match is found, the user must type a character saying | |
| 109 what to do with it. For directions, type \\[help-command] at that time. | |
| 110 | |
| 111 If `query-replace-interactive' is non-nil, the last incremental search | |
| 112 regexp is used as REGEXP--you don't have to specify it with the | |
| 113 minibuffer. | |
| 114 | |
| 115 Preserves case in each replacement if `case-replace' and `case-fold-search' | |
| 116 are non-nil and REGEXP has no uppercase letters. | |
| 117 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
| 118 only matches surrounded by word boundaries. | |
| 119 In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, | |
| 120 and `\\=\\N' (where N is a digit) stands for | |
| 121 whatever what matched the Nth `\\(...\\)' in REGEXP." | |
| 122 (interactive (query-replace-read-args "Query replace regexp" t)) | |
| 123 (perform-replace regexp to-string t t delimited)) | |
| 124 | |
| 125 ;;#### Not patently useful | |
| 126 (defun map-query-replace-regexp (regexp to-strings &optional arg) | |
| 127 "Replace some matches for REGEXP with various strings, in rotation. | |
| 128 The second argument TO-STRINGS contains the replacement strings, separated | |
| 129 by spaces. This command works like `query-replace-regexp' except | |
| 130 that each successive replacement uses the next successive replacement string, | |
| 131 wrapping around from the last such string to the first. | |
| 132 | |
| 133 Non-interactively, TO-STRINGS may be a list of replacement strings. | |
| 134 | |
| 135 If `query-replace-interactive' is non-nil, the last incremental search | |
| 136 regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
| 137 | |
| 138 A prefix argument N says to use each replacement string N times | |
| 139 before rotating to the next." | |
| 140 (interactive | |
| 141 (let (from to) | |
| 142 (setq from (if query-replace-interactive | |
| 143 (car regexp-search-ring) | |
| 144 (read-from-minibuffer "Map query replace (regexp): " | |
| 145 nil nil nil | |
| 146 'query-replace-history))) | |
| 147 (setq to (read-from-minibuffer | |
| 148 (format "Query replace %s with (space-separated strings): " | |
| 149 from) | |
| 150 nil nil nil | |
| 151 'query-replace-history)) | |
| 152 (list from to current-prefix-arg))) | |
| 153 (let (replacements) | |
| 154 (if (listp to-strings) | |
| 155 (setq replacements to-strings) | |
| 156 (while (/= (length to-strings) 0) | |
| 157 (if (string-match " " to-strings) | |
| 158 (setq replacements | |
| 159 (append replacements | |
| 160 (list (substring to-strings 0 | |
| 161 (string-match " " to-strings)))) | |
| 162 to-strings (substring to-strings | |
| 163 (1+ (string-match " " to-strings)))) | |
| 164 (setq replacements (append replacements (list to-strings)) | |
| 165 to-strings "")))) | |
| 166 (perform-replace regexp replacements t t nil arg))) | |
| 167 | |
| 168 (defun replace-string (from-string to-string &optional delimited) | |
| 169 "Replace occurrences of FROM-STRING with TO-STRING. | |
| 170 Preserve case in each match if `case-replace' and `case-fold-search' | |
| 171 are non-nil and FROM-STRING has no uppercase letters. | |
| 172 \(Preserving case means that if the string matched is all caps, or capitalized, | |
| 173 then its replacement is upcased or capitalized.) | |
| 174 | |
| 175 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
| 176 only matches surrounded by word boundaries. | |
| 177 | |
| 178 If `query-replace-interactive' is non-nil, the last incremental search | |
| 179 string is used as FROM-STRING--you don't have to specify it with the | |
| 180 minibuffer. | |
| 181 | |
| 182 This function is usually the wrong thing to use in a Lisp program. | |
| 183 What you probably want is a loop like this: | |
| 184 (while (search-forward FROM-STRING nil t) | |
| 185 (replace-match TO-STRING nil t)) | |
| 186 which will run faster and will not set the mark or print anything." | |
| 187 (interactive (query-replace-read-args "Replace string" nil)) | |
| 188 (perform-replace from-string to-string nil nil delimited)) | |
| 189 | |
| 190 (defun replace-regexp (regexp to-string &optional delimited) | |
| 191 "Replace things after point matching REGEXP with TO-STRING. | |
| 192 Preserve case in each match if `case-replace' and `case-fold-search' | |
| 193 are non-nil and REGEXP has no uppercase letters. | |
| 194 \(Preserving case means that if the string matched is all caps, or capitalized, | |
| 195 then its replacement is upcased or capitalized.) | |
| 196 | |
| 197 Third arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
| 198 only matches surrounded by word boundaries. | |
| 199 In TO-STRING, `\\&' stands for whatever matched the whole of REGEXP, | |
| 200 and `\\=\\N' (where N is a digit) stands for | |
| 201 whatever what matched the Nth `\\(...\\)' in REGEXP. | |
| 202 | |
| 203 If `query-replace-interactive' is non-nil, the last incremental search | |
| 204 regexp is used as REGEXP--you don't have to specify it with the minibuffer. | |
| 205 | |
| 206 This function is usually the wrong thing to use in a Lisp program. | |
| 207 What you probably want is a loop like this: | |
| 208 (while (re-search-forward REGEXP nil t) | |
| 209 (replace-match TO-STRING nil nil)) | |
| 210 which will run faster and will not set the mark or print anything." | |
| 211 (interactive (query-replace-read-args "Replace regexp" t)) | |
| 212 (perform-replace regexp to-string nil t delimited)) | |
| 213 | |
| 214 | |
| 215 (defvar regexp-history nil | |
| 216 "History list for some commands that read regular expressions.") | |
| 217 | |
| 218 (define-function 'keep-lines 'delete-non-matching-lines) | |
| 219 (defun delete-non-matching-lines (regexp) | |
| 220 "Delete all lines except those containing matches for REGEXP. | |
| 221 A match split across lines preserves all the lines it lies in. | |
| 222 Applies to all lines after point." | |
| 223 (interactive (list (read-from-minibuffer | |
| 224 "Keep lines (containing match for regexp): " | |
| 225 nil nil nil 'regexp-history))) | |
| 226 (with-interactive-search-caps-disable-folding regexp t | |
| 227 (save-excursion | |
| 228 (or (bolp) (forward-line 1)) | |
| 229 (let ((start (point))) | |
| 230 (while (not (eobp)) | |
| 231 ;; Start is first char not preserved by previous match. | |
| 232 (if (not (re-search-forward regexp nil 'move)) | |
| 233 (delete-region start (point-max)) | |
| 234 (let ((end (save-excursion (goto-char (match-beginning 0)) | |
| 235 (beginning-of-line) | |
| 236 (point)))) | |
| 237 ;; Now end is first char preserved by the new match. | |
| 238 (if (< start end) | |
| 239 (delete-region start end)))) | |
| 240 (setq start (save-excursion (forward-line 1) | |
| 241 (point))) | |
| 242 ;; If the match was empty, avoid matching again at same place. | |
| 243 (and (not (eobp)) (= (match-beginning 0) (match-end 0)) | |
| 244 (forward-char 1))))))) | |
| 245 | |
| 246 (define-function 'flush-lines 'delete-matching-lines) | |
| 247 (defun delete-matching-lines (regexp) | |
| 248 "Delete lines containing matches for REGEXP. | |
| 249 If a match is split across lines, all the lines it lies in are deleted. | |
| 250 Applies to lines after point." | |
| 251 (interactive (list (read-from-minibuffer | |
| 252 "Flush lines (containing match for regexp): " | |
| 253 nil nil nil 'regexp-history))) | |
| 254 (with-interactive-search-caps-disable-folding regexp t | |
| 255 (save-excursion | |
| 256 (while (and (not (eobp)) | |
| 257 (re-search-forward regexp nil t)) | |
| 258 (delete-region (save-excursion (goto-char (match-beginning 0)) | |
| 259 (beginning-of-line) | |
| 260 (point)) | |
| 261 (progn (forward-line 1) (point))))))) | |
| 262 | |
| 263 (define-function 'how-many 'count-matches) | |
| 264 (defun count-matches (regexp) | |
| 265 "Print number of matches for REGEXP following point." | |
| 266 (interactive (list (read-from-minibuffer | |
| 267 "How many matches for (regexp): " | |
| 268 nil nil nil 'regexp-history))) | |
| 269 (with-interactive-search-caps-disable-folding regexp t | |
| 270 (let ((count 0) opoint) | |
| 271 (save-excursion | |
| 272 (while (and (not (eobp)) | |
| 273 (progn (setq opoint (point)) | |
| 274 (re-search-forward regexp nil t))) | |
| 275 (if (= opoint (point)) | |
| 276 (forward-char 1) | |
| 277 (setq count (1+ count)))) | |
| 278 (message "%d occurrences" count))))) | |
| 279 | |
| 280 | |
| 281 (defvar occur-mode-map ()) | |
| 282 (if occur-mode-map | |
| 283 () | |
| 284 (setq occur-mode-map (make-sparse-keymap)) | |
| 285 (set-keymap-name occur-mode-map 'occur-mode-map) ; XEmacs | |
| 286 (define-key occur-mode-map 'button2 'occur-mode-mouse-goto) ; XEmacs | |
| 287 (define-key occur-mode-map "\C-c\C-c" 'occur-mode-goto-occurrence) | |
| 288 (define-key occur-mode-map "\C-m" 'occur-mode-goto-occurrence)) | |
| 289 | |
| 290 (defvar occur-buffer nil) | |
| 291 (defvar occur-nlines nil) | |
| 292 (defvar occur-pos-list nil) | |
| 293 | |
| 294 (defun occur-mode () | |
| 295 "Major mode for output from \\[occur]. | |
| 296 \\<occur-mode-map>Move point to one of the items in this buffer, then use | |
| 297 \\[occur-mode-goto-occurrence] to go to the occurrence that the item refers to. | |
| 298 Alternatively, click \\[occur-mode-mouse-goto] on an item to go to it. | |
| 299 | |
| 300 \\{occur-mode-map}" | |
| 301 (kill-all-local-variables) | |
| 302 (use-local-map occur-mode-map) | |
| 303 (setq major-mode 'occur-mode) | |
| 304 (setq mode-name (gettext "Occur")) ; XEmacs | |
| 305 (make-local-variable 'occur-buffer) | |
| 306 (make-local-variable 'occur-nlines) | |
| 307 (make-local-variable 'occur-pos-list) | |
| 308 (require 'mode-motion) ; XEmacs | |
| 309 (setq mode-motion-hook 'mode-motion-highlight-line) ; XEmacs | |
| 310 (run-hooks 'occur-mode-hook)) | |
| 311 | |
| 312 ;; FSF Version of next function: | |
| 313 ; (let (buffer pos) | |
| 314 ; (save-excursion | |
| 315 ; (set-buffer (window-buffer (posn-window (event-end event)))) | |
| 316 ; (save-excursion | |
| 317 ; (goto-char (posn-point (event-end event))) | |
| 318 ; (setq pos (occur-mode-find-occurrence)) | |
| 319 ; (setq buffer occur-buffer))) | |
| 320 ; (pop-to-buffer buffer) | |
| 321 ; (goto-char (marker-position pos)))) | |
| 322 | |
| 323 (defun occur-mode-mouse-goto (event) | |
| 324 "Go to the occurrence highlighted by mouse. | |
| 325 This function is only reasonable when bound to a mouse key in the occur buffer" | |
| 326 (interactive "e") | |
| 327 (let ((window-save (selected-window)) | |
| 328 (frame-save (selected-frame))) | |
| 329 ;; preserve the window/frame setup | |
| 330 (unwind-protect | |
| 331 (progn | |
| 332 (mouse-set-point event) | |
| 333 (occur-mode-goto-occurrence)) | |
| 334 (select-frame frame-save) | |
| 335 (select-window window-save)))) | |
| 336 | |
| 337 ;; Called occur-mode-find-occurrence in FSF | |
| 338 (defun occur-mode-goto-occurrence () | |
| 339 "Go to the occurrence the current line describes." | |
| 340 (interactive) | |
| 341 (if (or (null occur-buffer) | |
| 342 (null (buffer-name occur-buffer))) | |
| 343 (progn | |
| 344 (setq occur-buffer nil | |
| 345 occur-pos-list nil) | |
| 346 (error "Buffer in which occurrences were found is deleted"))) | |
| 347 (let* ((line-count | |
| 348 (count-lines (point-min) | |
| 349 (save-excursion | |
| 350 (beginning-of-line) | |
| 351 (point)))) | |
| 352 (occur-number (save-excursion | |
| 353 (beginning-of-line) | |
| 354 (/ (1- line-count) | |
| 355 (cond ((< occur-nlines 0) | |
| 356 (- 2 occur-nlines)) | |
| 357 ((> occur-nlines 0) | |
| 358 (+ 2 (* 2 occur-nlines))) | |
| 359 (t 1))))) | |
| 360 (pos (nth occur-number occur-pos-list)) | |
| 361 ;; removed t arg from Bob Weiner, 10/6/95 | |
| 362 (window (get-buffer-window occur-buffer)) | |
| 363 (occur-source-buffer occur-buffer)) | |
| 364 (if (< line-count 1) | |
| 365 (error "No occurrence on this line")) | |
| 366 (or pos | |
| 367 (error "No occurrence on this line")) | |
| 368 ;; XEmacs: don't raise window unless it isn't visible | |
| 369 ;; allow for the possibility that the occur buffer is on another frame | |
| 370 (or (and window | |
| 371 (window-live-p window) | |
| 372 (frame-visible-p (window-frame window)) | |
| 373 (set-buffer occur-source-buffer)) | |
| 374 (and (pop-to-buffer occur-source-buffer) | |
| 375 (setq window (get-buffer-window occur-source-buffer)))) | |
| 376 (goto-char pos) | |
| 377 (set-window-point window pos))) | |
| 378 | |
| 379 | |
| 380 (defvar list-matching-lines-default-context-lines 0 | |
| 381 "*Default number of context lines to include around a `list-matching-lines' | |
| 382 match. A negative number means to include that many lines before the match. | |
| 383 A positive number means to include that many lines both before and after.") | |
| 384 | |
| 385 ;; XEmacs addition | |
| 386 ;;; Damn you Jamie, this is utter trash. | |
| 387 (defvar list-matching-lines-whole-buffer t | |
| 388 "If t, occur operates on whole buffer, otherwise occur starts from point. | |
| 389 default is t.") | |
| 390 | |
| 391 (define-function 'occur 'list-matching-lines) | |
| 392 (defun list-matching-lines (regexp &optional nlines) | |
| 393 "Show all lines in the current buffer containing a match for REGEXP. | |
| 394 | |
| 395 If a match spreads across multiple lines, all those lines are shown. | |
| 396 | |
| 397 If variable `list-matching-lines-whole-buffer' is non-nil, the entire buffer is | |
| 398 searched, otherwise search begins at point. | |
| 399 | |
| 400 Each line is displayed with NLINES lines before and after, or -NLINES | |
| 401 before if NLINES is negative. | |
| 402 NLINES defaults to `list-matching-lines-default-context-lines'. | |
| 403 Interactively it is the prefix arg. | |
| 404 | |
| 405 The lines are shown in a buffer named `*Occur*'. | |
| 406 It serves as a menu to find any of the occurrences in this buffer. | |
| 407 \\[describe-mode] in that buffer will explain how." | |
| 408 (interactive | |
| 409 ;; XEmacs change | |
| 410 (list (let* ((default (or (symbol-near-point) | |
| 411 (and regexp-history | |
| 412 (car regexp-history)))) | |
| 413 (minibuffer-history-minimum-string-length 0) | |
| 414 (input | |
| 415 (if default | |
| 416 ;; rewritten for I18N3 snarfing | |
| 417 (read-from-minibuffer | |
| 418 (format "List lines matching regexp (default `%s'): " | |
| 419 default) nil nil nil 'regexp-history) | |
| 420 (read-from-minibuffer | |
| 421 "List lines matching regexp: " | |
| 422 nil nil nil | |
| 423 'regexp-history)))) | |
| 424 (if (and (equal input "") default) | |
| 425 (progn | |
| 426 (setq input default) | |
| 427 (setcar regexp-history default))) | |
| 428 ;; clear extra entries | |
| 429 (setcdr regexp-history (delete (car regexp-history) | |
| 430 (cdr regexp-history))) | |
| 431 input) | |
| 432 current-prefix-arg)) | |
| 433 (if (equal regexp "") | |
| 434 (error "Must pass non-empty regexp to `list-matching-lines'")) | |
| 435 (setq nlines (if nlines (prefix-numeric-value nlines) | |
| 436 list-matching-lines-default-context-lines)) | |
| 437 (let ((first t) | |
| 438 (dir default-directory) | |
| 439 (buffer (current-buffer)) | |
| 440 (linenum 1) | |
| 441 (prevpos (point-min)) | |
| 442 ;; The rest of this function is very different from FSF. | |
| 443 ;; Presumably that's due to Jamie's misfeature | |
| 444 (final-context-start (make-marker))) | |
| 445 (if (not list-matching-lines-whole-buffer) | |
| 446 (save-excursion | |
| 447 (beginning-of-line) | |
| 448 (setq linenum (1+ (count-lines (point-min) (point)))) | |
| 449 (setq prevpos (point)))) | |
| 450 (with-output-to-temp-buffer "*Occur*" | |
| 451 (save-excursion | |
| 452 (set-buffer standard-output) | |
| 453 (setq default-directory dir) | |
| 454 ;; We will insert the number of lines, and "lines", later. | |
| 455 ;; #### Needs fixing for I18N3 | |
| 456 (let ((print-escape-newlines t)) | |
| 457 (insert (format " matching %s in buffer %s.\n" | |
| 458 regexp (buffer-name buffer)))) | |
| 459 (occur-mode) | |
| 460 (setq occur-buffer buffer) | |
| 461 (setq occur-nlines nlines) | |
| 462 (setq occur-pos-list ())) | |
| 463 (if (eq buffer standard-output) | |
| 464 (goto-char (point-max))) | |
| 465 (with-interactive-search-caps-disable-folding regexp t | |
| 466 (save-excursion | |
| 467 (if list-matching-lines-whole-buffer | |
| 468 (beginning-of-buffer)) | |
| 469 (message "Searching for %s ..." regexp) | |
| 470 ;; Find next match, but give up if prev match was at end of buffer. | |
| 471 (while (and (not (= prevpos (point-max))) | |
| 472 (re-search-forward regexp nil t)) | |
| 473 (goto-char (match-beginning 0)) | |
| 474 (beginning-of-line) | |
| 475 (save-match-data | |
| 476 (setq linenum (+ linenum (count-lines prevpos (point))))) | |
| 477 (setq prevpos (point)) | |
| 478 (goto-char (match-end 0)) | |
| 479 (let* ((start (save-excursion | |
| 480 (goto-char (match-beginning 0)) | |
| 481 (forward-line (if (< nlines 0) nlines (- nlines))) | |
| 482 (point))) | |
| 483 (end (save-excursion | |
| 484 (goto-char (match-end 0)) | |
| 485 (if (> nlines 0) | |
| 486 (forward-line (1+ nlines)) | |
| 487 (forward-line 1)) | |
| 488 (point))) | |
| 489 (tag (format "%5d" linenum)) | |
| 490 (empty (make-string (length tag) ?\ )) | |
| 491 tem) | |
| 492 (save-excursion | |
| 493 (setq tem (make-marker)) | |
| 494 (set-marker tem (point)) | |
| 495 (set-buffer standard-output) | |
| 496 (setq occur-pos-list (cons tem occur-pos-list)) | |
| 497 (or first (zerop nlines) | |
| 498 (insert "--------\n")) | |
| 499 (setq first nil) | |
| 500 (insert-buffer-substring buffer start end) | |
| 501 (set-marker final-context-start | |
| 502 (- (point) (- end (match-end 0)))) | |
| 503 (backward-char (- end start)) | |
| 504 (setq tem (if (< nlines 0) (- nlines) nlines)) | |
| 505 (while (> tem 0) | |
| 506 (insert empty ?:) | |
| 507 (forward-line 1) | |
| 508 (setq tem (1- tem))) | |
| 509 (let ((this-linenum linenum)) | |
| 510 (while (< (point) final-context-start) | |
| 511 (if (null tag) | |
| 512 (setq tag (format "%5d" this-linenum))) | |
| 513 (insert tag ?:) | |
| 514 ;; FSFmacs -- | |
| 515 ;; we handle this using mode-motion-highlight-line, above. | |
| 516 ;; (put-text-property (save-excursion | |
| 517 ;; (beginning-of-line) | |
| 518 ;; (point)) | |
| 519 ;; (save-excursion | |
| 520 ;; (end-of-line) | |
| 521 ;; (point)) | |
| 522 ;; 'mouse-face 'highlight) | |
| 523 (forward-line 1) | |
| 524 (setq tag nil) | |
| 525 (setq this-linenum (1+ this-linenum))) | |
| 526 (while (<= (point) final-context-start) | |
| 527 (insert empty ?:) | |
| 528 (forward-line 1) | |
| 529 (setq this-linenum (1+ this-linenum)))) | |
| 530 (while (< tem nlines) | |
| 531 (insert empty ?:) | |
| 532 (forward-line 1) | |
| 533 (setq tem (1+ tem))) | |
| 534 (goto-char (point-max))) | |
| 535 (forward-line 1))) | |
| 536 (set-buffer standard-output) | |
| 537 ;; Put positions in increasing order to go with buffer. | |
| 538 (setq occur-pos-list (nreverse occur-pos-list)) | |
| 539 (goto-char (point-min)) | |
| 540 (if (= (length occur-pos-list) 1) | |
| 541 (insert "1 line") | |
| 542 (insert (format "%d lines" (length occur-pos-list)))) | |
| 543 (if (interactive-p) | |
| 544 (message "%d matching lines." (length occur-pos-list)))))))) | |
| 545 | |
| 546 ;; It would be nice to use \\[...], but there is no reasonable way | |
| 547 ;; to make that display both SPC and Y. | |
| 548 (defconst query-replace-help | |
| 549 (purecopy | |
| 550 "Type Space or `y' to replace one match, Delete or `n' to skip to next, | |
| 551 RET or `q' to exit, Period to replace one match and exit, | |
| 552 Comma to replace but not move point immediately, | |
| 553 C-r to enter recursive edit (\\[exit-recursive-edit] to get out again), | |
| 554 C-w to delete match and recursive edit, | |
| 555 C-l to clear the frame, redisplay, and offer same replacement again, | |
| 556 ! to replace all remaining matches with no more questions, | |
| 557 ^ to move point back to previous match." | |
| 558 ) | |
| 559 "Help message while in query-replace") | |
| 560 | |
| 561 (defvar query-replace-map nil | |
| 562 "Keymap that defines the responses to questions in `query-replace'. | |
| 563 The \"bindings\" in this map are not commands; they are answers. | |
| 564 The valid answers include `act', `skip', `act-and-show', | |
| 565 `exit', `act-and-exit', `edit', `delete-and-edit', `recenter', | |
| 566 `automatic', `backup', `exit-prefix', and `help'.") | |
| 567 | |
| 568 ;; Why does it seem that ever file has a different method of doing this? | |
| 569 (if query-replace-map | |
| 570 nil | |
| 571 (let ((map (make-sparse-keymap))) | |
| 572 (set-keymap-name map 'query-replace-map) | |
| 573 (define-key map " " 'act) | |
| 574 (define-key map "\d" 'skip) | |
| 575 (define-key map [delete] 'skip) | |
| 576 (define-key map [backspace] 'skip) | |
| 577 (define-key map "y" 'act) | |
| 578 (define-key map "n" 'skip) | |
| 579 (define-key map "Y" 'act) | |
| 580 (define-key map "N" 'skip) | |
| 581 (define-key map "," 'act-and-show) | |
| 582 (define-key map [escape] 'exit) | |
| 583 (define-key map "q" 'exit) | |
| 584 (define-key map [return] 'exit) | |
| 585 (define-key map "." 'act-and-exit) | |
| 586 (define-key map "\C-r" 'edit) | |
| 587 (define-key map "\C-w" 'delete-and-edit) | |
| 588 (define-key map "\C-l" 'recenter) | |
| 589 (define-key map "!" 'automatic) | |
| 590 (define-key map "^" 'backup) | |
| 591 (define-key map [(control h)] 'help) ;; XEmacs change | |
| 592 (define-key map [f1] 'help) | |
| 593 (define-key map [help] 'help) | |
| 594 (define-key map "?" 'help) | |
| 595 (define-key map "\C-g" 'quit) | |
| 596 (define-key map "\C-]" 'quit) | |
| 597 ;FSFmacs (define-key map "\e" 'exit-prefix) | |
| 598 (define-key map [escape] 'exit-prefix) | |
| 599 | |
| 600 (setq query-replace-map map))) | |
| 601 | |
| 602 ;; isearch-mode is dumped, so don't autoload. | |
| 603 ;(autoload 'isearch-highlight "isearch") | |
| 604 | |
| 605 ;; XEmacs | |
| 606 (defun perform-replace-next-event (event) | |
| 607 (if isearch-highlight | |
| 608 (let ((aborted t)) | |
| 609 (unwind-protect | |
| 610 (progn | |
| 611 (if (match-beginning 0) | |
| 612 (isearch-highlight (match-beginning 0) (match-end 0))) | |
| 613 (next-command-event event) | |
| 614 (setq aborted nil)) | |
| 615 (isearch-dehighlight aborted))) | |
| 616 (next-command-event event))) | |
| 617 | |
| 618 (defun perform-replace (from-string replacements | |
| 619 query-flag regexp-flag delimited-flag | |
| 620 &optional repeat-count map) | |
| 621 "Subroutine of `query-replace'. Its complexity handles interactive queries. | |
| 622 Don't use this in your own program unless you want to query and set the mark | |
| 623 just as `query-replace' does. Instead, write a simple loop like this: | |
| 624 (while (re-search-forward \"foo[ \t]+bar\" nil t) | |
| 625 (replace-match \"foobar\" nil nil)) | |
| 626 which will run faster and probably do exactly what you want. | |
| 627 When searching for a match, this function use `replace-search-function' and `replace-re-search-function'" | |
| 628 (or map (setq map query-replace-map)) | |
| 629 (let* ((event (make-event)) | |
| 630 (nocasify (not (and case-fold-search case-replace | |
| 631 (string-equal from-string | |
| 632 (downcase from-string))))) | |
| 633 (literal (not regexp-flag)) | |
| 634 (search-function (if regexp-flag | |
| 635 replace-re-search-function | |
| 636 replace-search-function)) | |
| 637 (search-string from-string) | |
| 638 (real-match-data nil) ; the match data for the current match | |
| 639 (next-replacement nil) | |
| 640 (replacement-index 0) | |
| 641 (keep-going t) | |
| 642 (stack nil) | |
| 643 (next-rotate-count 0) | |
| 644 (replace-count 0) | |
| 645 (lastrepl nil) ;Position after last match considered. | |
| 646 ;; If non-nil, it is marker saying where in the buffer to | |
| 647 ;; stop. | |
| 648 (limit nil) | |
| 649 (match-again t) | |
| 650 ;; XEmacs addition | |
| 651 (qr-case-fold-search | |
| 652 (if (and case-fold-search search-caps-disable-folding) | |
| 653 (no-upper-case-p search-string regexp-flag) | |
| 654 case-fold-search)) | |
| 655 (message | |
| 656 (if query-flag | |
| 657 (substitute-command-keys | |
| 658 "Query replacing %s with %s: (\\<query-replace-map>\\[help] for help) ")))) | |
| 659 ;; If the region is active, operate on region. | |
| 660 (when (region-active-p) | |
| 661 ;; Original Per Abrahamsen's code simply narrowed the region, | |
| 662 ;; thus providing a visual indication of the search boundary. | |
| 663 ;; Stallman, on the other hand, handles it like this. | |
| 664 (setq limit (copy-marker (region-end))) | |
| 665 (goto-char (region-beginning)) | |
| 666 (zmacs-deactivate-region)) | |
| 667 (if (stringp replacements) | |
| 668 (setq next-replacement replacements) | |
| 669 (or repeat-count (setq repeat-count 1))) | |
| 670 (if delimited-flag | |
| 671 (setq search-function replace-re-search-function | |
| 672 search-string (concat "\\b" | |
| 673 (if regexp-flag from-string | |
| 674 (regexp-quote from-string)) | |
| 675 "\\b"))) | |
| 676 (push-mark) | |
| 677 (undo-boundary) | |
| 678 (unwind-protect | |
| 679 ;; Loop finding occurrences that perhaps should be replaced. | |
| 680 (while (and keep-going | |
| 681 (not (eobp)) | |
| 682 (or (null limit) (< (point) limit)) | |
| 683 (let ((case-fold-search qr-case-fold-search)) | |
| 684 (funcall search-function search-string limit)) | |
| 685 ;; If the search string matches immediately after | |
| 686 ;; the previous match, but it did not match there | |
| 687 ;; before the replacement was done, ignore the match. | |
| 688 (if (or (eq lastrepl (point)) | |
| 689 (and regexp-flag | |
| 690 (eq lastrepl (match-beginning 0)) | |
| 691 (not match-again))) | |
| 692 (if (or (eobp) | |
| 693 (and limit (>= (point) limit))) | |
| 694 nil | |
| 695 ;; Don't replace the null string | |
| 696 ;; right after end of previous replacement. | |
| 697 (forward-char 1) | |
| 698 (let ((case-fold-search qr-case-fold-search)) | |
| 699 (funcall search-function search-string limit))) | |
| 700 t)) | |
| 701 | |
| 702 ;; Save the data associated with the real match. | |
| 703 (setq real-match-data (match-data)) | |
| 704 | |
| 705 ;; Before we make the replacement, decide whether the search string | |
| 706 ;; can match again just after this match. | |
| 707 (if regexp-flag | |
| 708 (progn | |
| 709 (setq match-again (looking-at search-string)) | |
| 710 ;; XEmacs addition | |
| 711 (store-match-data real-match-data))) | |
| 712 ;; If time for a change, advance to next replacement string. | |
| 713 (if (and (listp replacements) | |
| 714 (= next-rotate-count replace-count)) | |
| 715 (progn | |
| 716 (setq next-rotate-count | |
| 717 (+ next-rotate-count repeat-count)) | |
| 718 (setq next-replacement (nth replacement-index replacements)) | |
| 719 (setq replacement-index (% (1+ replacement-index) (length replacements))))) | |
| 720 (if (not query-flag) | |
| 721 (progn | |
| 722 (store-match-data real-match-data) | |
| 723 (replace-match next-replacement nocasify literal) | |
| 724 (setq replace-count (1+ replace-count))) | |
| 725 (undo-boundary) | |
| 726 (let ((help-form | |
| 727 '(concat (format "Query replacing %s%s with %s.\n\n" | |
| 728 (if regexp-flag (gettext "regexp ") "") | |
| 729 from-string next-replacement) | |
| 730 (substitute-command-keys query-replace-help))) | |
| 731 done replaced def) | |
| 732 ;; Loop reading commands until one of them sets done, | |
| 733 ;; which means it has finished handling this occurrence. | |
| 734 (while (not done) | |
| 735 ;; Don't fill up the message log | |
| 736 ;; with a bunch of identical messages. | |
| 737 ;; XEmacs change | |
| 738 (display-message 'prompt | |
| 739 (format message from-string next-replacement)) | |
| 740 (perform-replace-next-event event) | |
| 741 (setq def (lookup-key map (vector event))) | |
| 742 ;; Restore the match data while we process the command. | |
| 743 (store-match-data real-match-data) | |
| 744 (cond ((eq def 'help) | |
| 745 (with-output-to-temp-buffer (gettext "*Help*") | |
| 746 (princ (concat | |
| 747 (format "Query replacing %s%s with %s.\n\n" | |
| 748 (if regexp-flag "regexp " "") | |
| 749 from-string next-replacement) | |
| 750 (substitute-command-keys | |
| 751 query-replace-help))) | |
| 752 (save-excursion | |
| 753 (set-buffer standard-output) | |
| 754 (help-mode)))) | |
| 755 ((eq def 'exit) | |
| 756 (setq keep-going nil) | |
| 757 (setq done t)) | |
| 758 ((eq def 'backup) | |
| 759 (if stack | |
| 760 (let ((elt (car stack))) | |
| 761 (goto-char (car elt)) | |
| 762 (setq replaced (eq t (cdr elt))) | |
| 763 (or replaced | |
| 764 (store-match-data (cdr elt))) | |
| 765 (setq stack (cdr stack))) | |
| 766 (message "No previous match") | |
| 767 (ding 'no-terminate) | |
| 768 (sit-for 1))) | |
| 769 ((eq def 'act) | |
| 770 (or replaced | |
| 771 (replace-match next-replacement nocasify literal)) | |
| 772 (setq done t replaced t)) | |
| 773 ((eq def 'act-and-exit) | |
| 774 (or replaced | |
| 775 (replace-match next-replacement nocasify literal)) | |
| 776 (setq keep-going nil) | |
| 777 (setq done t replaced t)) | |
| 778 ((eq def 'act-and-show) | |
| 779 (if (not replaced) | |
| 780 (progn | |
| 781 (replace-match next-replacement nocasify literal) | |
| 782 (store-match-data nil) | |
| 783 (setq replaced t)))) | |
| 784 ((eq def 'automatic) | |
| 785 (or replaced | |
| 786 (replace-match next-replacement nocasify literal)) | |
| 787 (setq done t query-flag nil replaced t)) | |
| 788 ((eq def 'skip) | |
| 789 (setq done t)) | |
| 790 ((eq def 'recenter) | |
| 791 (recenter nil)) | |
| 792 ((eq def 'edit) | |
| 793 (store-match-data | |
| 794 (prog1 (match-data) | |
| 795 (save-excursion (recursive-edit)))) | |
| 796 ;; Before we make the replacement, | |
| 797 ;; decide whether the search string | |
| 798 ;; can match again just after this match. | |
| 799 (if regexp-flag | |
| 800 (setq match-again (looking-at search-string)))) | |
| 801 ((eq def 'delete-and-edit) | |
| 802 (delete-region (match-beginning 0) (match-end 0)) | |
| 803 (store-match-data (prog1 (match-data) | |
| 804 (save-excursion (recursive-edit)))) | |
| 805 (setq replaced t)) | |
| 806 ;; Note: we do not need to treat `exit-prefix' | |
| 807 ;; specially here, since we reread | |
| 808 ;; any unrecognized character. | |
| 809 (t | |
| 810 (setq this-command 'mode-exited) | |
| 811 (setq keep-going nil) | |
| 812 (setq unread-command-events | |
| 813 (cons event unread-command-events)) | |
| 814 (setq done t)))) | |
| 815 ;; Record previous position for ^ when we move on. | |
| 816 ;; Change markers to numbers in the match data | |
| 817 ;; since lots of markers slow down editing. | |
| 818 (setq stack | |
| 819 (cons (cons (point) | |
| 820 (or replaced | |
| 821 (match-data t))) | |
| 822 stack)) | |
| 823 (if replaced (setq replace-count (1+ replace-count))))) | |
| 824 (setq lastrepl (point))) | |
| 825 ;; Useless in XEmacs. We handle (de)highlighting through | |
| 826 ;; perform-replace-next-event. | |
| 827 ;(replace-dehighlight) | |
| 828 ) | |
| 829 (or unread-command-events | |
| 830 (message "Replaced %d occurrence%s" | |
| 831 replace-count | |
| 832 (if (= replace-count 1) "" "s"))) | |
| 833 (and keep-going stack))) | |
| 834 | |
| 835 ;; FSFmacs code: someone should port it. | |
| 836 | |
| 837 ;(defvar query-replace-highlight nil | |
| 838 ; "*Non-nil means to highlight words during query replacement.") | |
| 839 | |
| 840 ;(defvar replace-overlay nil) | |
| 841 | |
| 842 ;(defun replace-dehighlight () | |
| 843 ; (and replace-overlay | |
| 844 ; (progn | |
| 845 ; (delete-overlay replace-overlay) | |
| 846 ; (setq replace-overlay nil)))) | |
| 847 | |
| 848 ;(defun replace-highlight (start end) | |
| 849 ; (and query-replace-highlight | |
| 850 ; (progn | |
| 851 ; (or replace-overlay | |
| 852 ; (progn | |
| 853 ; (setq replace-overlay (make-overlay start end)) | |
| 854 ; (overlay-put replace-overlay 'face | |
| 855 ; (if (internal-find-face 'query-replace) | |
| 856 ; 'query-replace 'region)))) | |
| 857 ; (move-overlay replace-overlay start end (current-buffer))))) | |
| 858 | |
| 859 (defun match-string (num &optional string) | |
| 860 "Return string of text matched by last search. | |
| 861 NUM specifies which parenthesized expression in the last regexp. | |
| 862 Value is nil if NUMth pair didn't match, or there were less than NUM pairs. | |
| 863 Zero means the entire text matched by the whole regexp or whole string. | |
| 864 STRING should be given if the last search was by `string-match' on STRING." | |
| 865 (if (match-beginning num) | |
| 866 (if string | |
| 867 (substring string (match-beginning num) (match-end num)) | |
| 868 (buffer-substring (match-beginning num) (match-end num))))) | |
| 869 | |
| 870 (defmacro save-match-data (&rest body) | |
| 871 "Execute BODY forms, restoring the global value of the match data." | |
| 872 (let ((original (make-symbol "match-data"))) | |
| 873 (list 'let (list (list original '(match-data))) | |
| 874 (list 'unwind-protect | |
| 875 (cons 'progn body) | |
| 876 (list 'store-match-data original))))) | |
| 877 | |
| 878 ;;; replace.el ends here |