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55535639 | 1 | ;;; isearch.el --- incremental search minor mode |
3b1e4dd1 | 2 | |
ba318903 | 3 | ;; Copyright (C) 1992-1997, 1999-2014 Free Software Foundation, Inc. |
3a801d0c | 4 | |
3b1e4dd1 | 5 | ;; Author: Daniel LaLiberte <liberte@cs.uiuc.edu> |
34dc21db | 6 | ;; Maintainer: emacs-devel@gnu.org |
117132a6 | 7 | ;; Keywords: matching |
bd78fa1d | 8 | ;; Package: emacs |
8e1cae6d | 9 | |
54d2ecd3 | 10 | ;; This file is part of GNU Emacs. |
8e1cae6d | 11 | |
eb3fa2cf | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
59243403 | 13 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
15 | ;; (at your option) any later version. | |
59243403 | 16 | |
8e1cae6d | 17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
59243403 RS |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
8e1cae6d | 24 | |
3b1e4dd1 ER |
25 | ;;; Commentary: |
26 | ||
8e1cae6d JB |
27 | ;; Instructions |
28 | ||
08200510 RS |
29 | ;; For programmed use of isearch-mode, e.g. calling (isearch-forward), |
30 | ;; isearch-mode behaves modally and does not return until the search | |
117132a6 | 31 | ;; is completed. It uses a recursive-edit to behave this way. |
08200510 | 32 | |
8e1cae6d | 33 | ;; The key bindings active within isearch-mode are defined below in |
08200510 RS |
34 | ;; `isearch-mode-map' which is given bindings close to the default |
35 | ;; characters of the original isearch.el. With `isearch-mode', | |
36 | ;; however, you can bind multi-character keys and it should be easier | |
37 | ;; to add new commands. One bug though: keys with meta-prefix cannot | |
38 | ;; be longer than two chars. Also see minibuffer-local-isearch-map | |
39 | ;; for bindings active during `isearch-edit-string'. | |
40 | ||
117132a6 DL |
41 | ;; isearch-mode should work even if you switch windows with the mouse, |
42 | ;; in which case isearch-mode is terminated automatically before the | |
43 | ;; switch. | |
08200510 RS |
44 | |
45 | ;; The search ring and completion commands automatically put you in | |
46 | ;; the minibuffer to edit the string. This gives you a chance to | |
47 | ;; modify the search string before executing the search. There are | |
48 | ;; three commands to terminate the editing: C-s and C-r exit the | |
49 | ;; minibuffer and search forward and reverse respectively, while C-m | |
6d65486d | 50 | ;; exits and searches in the last search direction. |
08200510 RS |
51 | |
52 | ;; Exiting immediately from isearch uses isearch-edit-string instead | |
53 | ;; of nonincremental-search, if search-nonincremental-instead is non-nil. | |
54 | ;; The name of this option should probably be changed if we decide to | |
55 | ;; keep the behavior. No point in forcing nonincremental search until | |
56 | ;; the last possible moment. | |
57 | ||
3b1e4dd1 | 58 | ;;; Code: |
08200510 | 59 | |
7c2dc8bd | 60 | (eval-when-compile (require 'cl-lib)) |
08200510 | 61 | \f |
191f025a | 62 | ;; Some additional options and constants. |
08200510 | 63 | |
9c1db929 RS |
64 | (defgroup isearch nil |
65 | "Incremental search minor mode." | |
117132a6 DL |
66 | :link '(emacs-commentary-link "isearch") |
67 | :link '(custom-manual "(emacs)Incremental Search") | |
9c1db929 RS |
68 | :prefix "isearch-" |
69 | :prefix "search-" | |
70 | :group 'matching) | |
fdf5afa4 | 71 | |
9c1db929 RS |
72 | |
73 | (defcustom search-exit-option t | |
4b65254d | 74 | "Non-nil means random control characters terminate incremental search." |
9c1db929 RS |
75 | :type 'boolean |
76 | :group 'isearch) | |
77 | ||
78 | (defcustom search-slow-window-lines 1 | |
4b65254d | 79 | "Number of lines in slow search display windows. |
fdf5afa4 RS |
80 | These are the short windows used during incremental search on slow terminals. |
81 | Negative means put the slow search window at the top (normally it's at bottom) | |
9c1db929 RS |
82 | and the value is minus the number of lines." |
83 | :type 'integer | |
84 | :group 'isearch) | |
fdf5afa4 | 85 | |
9c1db929 | 86 | (defcustom search-slow-speed 1200 |
4b65254d | 87 | "Highest terminal speed at which to use \"slow\" style incremental search. |
fdf5afa4 | 88 | This is the style where a one-line window is created to show the line |
9c1db929 RS |
89 | that the search has reached." |
90 | :type 'integer | |
91 | :group 'isearch) | |
8e1cae6d | 92 | |
9c1db929 | 93 | (defcustom search-upper-case 'not-yanks |
4b65254d | 94 | "If non-nil, upper case chars disable case fold searching. |
08200510 RS |
95 | That is, upper and lower case chars must match exactly. |
96 | This applies no matter where the chars come from, but does not | |
fdf5afa4 | 97 | apply to chars in regexps that are prefixed with `\\'. |
6e3057bb JL |
98 | If this value is `not-yanks', text yanked into the search string |
99 | in Isearch mode is always downcased." | |
9c1db929 RS |
100 | :type '(choice (const :tag "off" nil) |
101 | (const not-yanks) | |
5786b3ed | 102 | (other :tag "on" t)) |
9c1db929 | 103 | :group 'isearch) |
8e1cae6d | 104 | |
9c1db929 | 105 | (defcustom search-nonincremental-instead t |
0e6038be | 106 | "If non-nil, do a nonincremental search instead of exiting immediately. |
08200510 | 107 | Actually, `isearch-edit-string' is called to let you enter the search |
9c1db929 RS |
108 | string, and RET terminates editing and does a nonincremental search." |
109 | :type 'boolean | |
110 | :group 'isearch) | |
8e1cae6d | 111 | |
1e8780b1 | 112 | (defcustom search-whitespace-regexp (purecopy "\\s-+") |
4b65254d | 113 | "If non-nil, regular expression to match a sequence of whitespace chars. |
dd7ffad6 CY |
114 | When you enter a space or spaces in the incremental search, it |
115 | will match any sequence matched by this regexp. As an exception, | |
116 | spaces are treated normally in regexp incremental search if they | |
117 | occur in a regexp construct like [...] or *, + or ?. | |
118 | ||
63dd1c6f JL |
119 | If the value is a string, it applies to both ordinary and |
120 | regexp incremental search. If the value is nil, or | |
121 | `isearch-lax-whitespace' is nil for ordinary incremental search, or | |
122 | `isearch-regexp-lax-whitespace' is nil for regexp incremental search, | |
123 | then each space you type matches literally, against one space. | |
dd7ffad6 | 124 | |
ab67e8b6 RS |
125 | You might want to use something like \"[ \\t\\r\\n]+\" instead. |
126 | In the Customization buffer, that is `[' followed by a space, | |
dd7ffad6 | 127 | a tab, a carriage return (control-M), a newline, and `]+'." |
63dd1c6f | 128 | :type '(choice (const :tag "Match Spaces Literally" nil) |
51a77cba | 129 | regexp) |
dd7ffad6 CY |
130 | :group 'isearch |
131 | :version "24.3") | |
8e1cae6d | 132 | |
0352b205 | 133 | (defcustom search-invisible 'open |
2501c912 | 134 | "If t incremental search/query-replace can match hidden text. |
6480c508 JB |
135 | A nil value means don't match invisible text. |
136 | When the value is `open', if the text matched is made invisible by | |
0352b205 RS |
137 | an overlay having an `invisible' property and that overlay has a property |
138 | `isearch-open-invisible', then incremental search will show the contents. | |
cd59ea72 | 139 | \(This applies when using `outline.el' and `hideshow.el'.) |
4d49cc65 GM |
140 | |
141 | To temporarily change the value for an active incremental search, | |
142 | use \\<isearch-mode-map>\\[isearch-toggle-invisible]. | |
143 | ||
144 | See also the related option `isearch-hide-immediately'. | |
145 | ||
cd59ea72 SM |
146 | See also `reveal-mode' if you want overlays to automatically be opened |
147 | whenever point is in one of them." | |
0352b205 RS |
148 | :type '(choice (const :tag "Match hidden text" t) |
149 | (const :tag "Open overlays" open) | |
79c7a4fa | 150 | (const :tag "Don't match hidden text" nil)) |
0352b205 RS |
151 | :group 'isearch) |
152 | ||
153 | (defcustom isearch-hide-immediately t | |
68c18d6d RS |
154 | "If non-nil, re-hide an invisible match right away. |
155 | This variable makes a difference when `search-invisible' is set to `open'. | |
9165ffc0 LI |
156 | If nil then do not re-hide opened invisible text when the match moves. |
157 | Whatever the value, all opened invisible text is hidden again after exiting | |
158 | the search." | |
b48ca14f | 159 | :type 'boolean |
0352b205 | 160 | :group 'isearch) |
86bfaffe | 161 | |
00098b01 | 162 | (defcustom isearch-resume-in-command-history nil |
4b65254d JB |
163 | "If non-nil, `isearch-resume' commands are added to the command history. |
164 | This allows you to resume earlier Isearch sessions through the | |
00098b01 | 165 | command history." |
6848c9f1 KS |
166 | :type 'boolean |
167 | :group 'isearch) | |
168 | ||
08200510 RS |
169 | (defvar isearch-mode-hook nil |
170 | "Function(s) to call after starting up an incremental search.") | |
171 | ||
a6020335 MH |
172 | (defvar isearch-update-post-hook nil |
173 | "Function(s) to call after isearch has found matches in the buffer.") | |
174 | ||
08200510 | 175 | (defvar isearch-mode-end-hook nil |
87e97673 RS |
176 | "Function(s) to call after terminating an incremental search. |
177 | When these functions are called, `isearch-mode-end-hook-quit' | |
4974aba8 | 178 | is non-nil if the user quits the search.") |
87e97673 RS |
179 | |
180 | (defvar isearch-mode-end-hook-quit nil | |
4974aba8 | 181 | "Non-nil while running `isearch-mode-end-hook' if the user quits the search.") |
08200510 | 182 | |
ac475d3a JL |
183 | (defvar isearch-message-function nil |
184 | "Function to call to display the search prompt. | |
9fc9a531 | 185 | If nil, use function `isearch-message'.") |
ac475d3a | 186 | |
6a18e4e7 JL |
187 | (defvar isearch-wrap-function nil |
188 | "Function to call to wrap the search when search is failed. | |
189 | If nil, move point to the beginning of the buffer for a forward search, | |
190 | or to the end of the buffer for a backward search.") | |
191 | ||
192 | (defvar isearch-push-state-function nil | |
4b65254d | 193 | "Function to save a function restoring the mode-specific Isearch state |
6a18e4e7 JL |
194 | to the search status stack.") |
195 | ||
dc6c0eda | 196 | (defvar isearch-filter-predicate #'isearch-filter-visible |
c96411bd | 197 | "Predicate that filters the search hits that would normally be available. |
dc6c0eda SM |
198 | Search hits that dissatisfy the predicate are skipped. The function |
199 | has two arguments: the positions of start and end of text matched by | |
200 | the search. If this function returns nil, continue searching without | |
201 | stopping at this match. | |
202 | If you use `add-function' to modify this variable, you can use the | |
203 | `isearch-message-prefix' advice property to specify the prefix string | |
204 | displayed in the search message.") | |
5e189f39 | 205 | |
191f025a | 206 | ;; Search ring. |
8e1cae6d JB |
207 | |
208 | (defvar search-ring nil | |
209 | "List of search string sequences.") | |
08200510 | 210 | (defvar regexp-search-ring nil |
8e1cae6d JB |
211 | "List of regular expression search string sequences.") |
212 | ||
9c1db929 | 213 | (defcustom search-ring-max 16 |
4b65254d | 214 | "Maximum length of search ring before oldest elements are thrown away." |
9c1db929 RS |
215 | :type 'integer |
216 | :group 'isearch) | |
217 | (defcustom regexp-search-ring-max 16 | |
4b65254d | 218 | "Maximum length of regexp search ring before oldest elements are thrown away." |
9c1db929 RS |
219 | :type 'integer |
220 | :group 'isearch) | |
8e1cae6d JB |
221 | |
222 | (defvar search-ring-yank-pointer nil | |
a5dcf63f | 223 | "Index in `search-ring' of last string reused. |
6480c508 | 224 | It is nil if none yet.") |
08200510 | 225 | (defvar regexp-search-ring-yank-pointer nil |
a5dcf63f | 226 | "Index in `regexp-search-ring' of last string reused. |
6480c508 | 227 | It is nil if none yet.") |
8e1cae6d | 228 | |
9c1db929 | 229 | (defcustom search-ring-update nil |
4b65254d | 230 | "Non-nil if advancing or retreating in the search ring should cause search. |
9c1db929 RS |
231 | Default value, nil, means edit the string instead." |
232 | :type 'boolean | |
233 | :group 'isearch) | |
08200510 | 234 | |
bca92193 JL |
235 | ;;; isearch highlight customization. |
236 | ||
237 | (defcustom search-highlight t | |
4b65254d | 238 | "Non-nil means incremental search highlights the current match." |
bca92193 JL |
239 | :type 'boolean |
240 | :group 'isearch) | |
241 | ||
242 | (defface isearch | |
243 | '((((class color) (min-colors 88) (background light)) | |
244 | ;; The background must not be too dark, for that means | |
245 | ;; the character is hard to see when the cursor is there. | |
a49ff341 | 246 | (:background "magenta3" :foreground "lightskyblue1")) |
bca92193 JL |
247 | (((class color) (min-colors 88) (background dark)) |
248 | (:background "palevioletred2" :foreground "brown4")) | |
249 | (((class color) (min-colors 16)) | |
250 | (:background "magenta4" :foreground "cyan1")) | |
251 | (((class color) (min-colors 8)) | |
252 | (:background "magenta4" :foreground "cyan1")) | |
253 | (t (:inverse-video t))) | |
254 | "Face for highlighting Isearch matches." | |
92cc4a30 JL |
255 | :group 'isearch |
256 | :group 'basic-faces) | |
4be520fb | 257 | (defvar isearch-face 'isearch) |
bca92193 | 258 | |
d8891294 JL |
259 | (defface isearch-fail |
260 | '((((class color) (min-colors 88) (background light)) | |
261 | (:background "RosyBrown1")) | |
262 | (((class color) (min-colors 88) (background dark)) | |
263 | (:background "red4")) | |
264 | (((class color) (min-colors 16)) | |
265 | (:background "red")) | |
266 | (((class color) (min-colors 8)) | |
267 | (:background "red")) | |
268 | (((class color grayscale)) | |
269 | :foreground "grey") | |
270 | (t (:inverse-video t))) | |
723e5b84 | 271 | "Face for highlighting failed part in Isearch echo-area message." |
d8891294 | 272 | :version "23.1" |
723e5b84 BG |
273 | :group 'isearch) |
274 | ||
bca92193 | 275 | (defcustom isearch-lazy-highlight t |
4b65254d | 276 | "Controls the lazy-highlighting during incremental search. |
bca92193 JL |
277 | When non-nil, all text in the buffer matching the current search |
278 | string is highlighted lazily (see `lazy-highlight-initial-delay' | |
279 | and `lazy-highlight-interval')." | |
280 | :type 'boolean | |
281 | :group 'lazy-highlight | |
282 | :group 'isearch) | |
283 | ||
c1bc6bb6 | 284 | ;;; Lazy highlight customization. |
bca92193 | 285 | |
c1bc6bb6 RS |
286 | (defgroup lazy-highlight nil |
287 | "Lazy highlighting feature for matching strings." | |
288 | :prefix "lazy-highlight-" | |
289 | :version "21.1" | |
290 | :group 'isearch | |
bca92193 | 291 | :group 'matching) |
c1bc6bb6 | 292 | |
af3ccb5c GM |
293 | (define-obsolete-variable-alias 'isearch-lazy-highlight-cleanup |
294 | 'lazy-highlight-cleanup | |
295 | "22.1") | |
296 | ||
c1bc6bb6 | 297 | (defcustom lazy-highlight-cleanup t |
4b65254d | 298 | "Controls whether to remove extra highlighting after a search. |
c1bc6bb6 | 299 | If this is nil, extra highlighting can be \"manually\" removed with |
46fe9018 | 300 | \\[lazy-highlight-cleanup]." |
c1bc6bb6 RS |
301 | :type 'boolean |
302 | :group 'lazy-highlight) | |
af3ccb5c GM |
303 | |
304 | (define-obsolete-variable-alias 'isearch-lazy-highlight-initial-delay | |
305 | 'lazy-highlight-initial-delay | |
6480c508 | 306 | "22.1") |
c1bc6bb6 RS |
307 | |
308 | (defcustom lazy-highlight-initial-delay 0.25 | |
4b65254d | 309 | "Seconds to wait before beginning to lazily highlight all matches." |
c1bc6bb6 RS |
310 | :type 'number |
311 | :group 'lazy-highlight) | |
af3ccb5c GM |
312 | |
313 | (define-obsolete-variable-alias 'isearch-lazy-highlight-interval | |
314 | 'lazy-highlight-interval | |
6480c508 | 315 | "22.1") |
c1bc6bb6 RS |
316 | |
317 | (defcustom lazy-highlight-interval 0 ; 0.0625 | |
4b65254d | 318 | "Seconds between lazily highlighting successive matches." |
c1bc6bb6 RS |
319 | :type 'number |
320 | :group 'lazy-highlight) | |
af3ccb5c GM |
321 | |
322 | (define-obsolete-variable-alias 'isearch-lazy-highlight-max-at-a-time | |
323 | 'lazy-highlight-max-at-a-time | |
6480c508 | 324 | "22.1") |
c1bc6bb6 RS |
325 | |
326 | (defcustom lazy-highlight-max-at-a-time 20 | |
4b65254d JB |
327 | "Maximum matches to highlight at a time (for `lazy-highlight'). |
328 | Larger values may reduce Isearch's responsiveness to user input; | |
c1bc6bb6 RS |
329 | smaller values make matches highlight slowly. |
330 | A value of nil means highlight all matches." | |
331 | :type '(choice (const :tag "All" nil) | |
332 | (integer :tag "Some")) | |
333 | :group 'lazy-highlight) | |
334 | ||
e3cde0c7 | 335 | (defface lazy-highlight |
c1bc6bb6 RS |
336 | '((((class color) (min-colors 88) (background light)) |
337 | (:background "paleturquoise")) | |
338 | (((class color) (min-colors 88) (background dark)) | |
339 | (:background "paleturquoise4")) | |
340 | (((class color) (min-colors 16)) | |
341 | (:background "turquoise3")) | |
342 | (((class color) (min-colors 8)) | |
343 | (:background "turquoise3")) | |
344 | (t (:underline t))) | |
345 | "Face for lazy highlighting of matches other than the current one." | |
92cc4a30 JL |
346 | :group 'lazy-highlight |
347 | :group 'basic-faces) | |
c4f6e489 | 348 | (define-obsolete-face-alias 'isearch-lazy-highlight-face 'lazy-highlight "22.1") |
6480c508 JB |
349 | (define-obsolete-variable-alias 'isearch-lazy-highlight-face |
350 | 'lazy-highlight-face | |
351 | "22.1") | |
af3ccb5c | 352 | (defvar lazy-highlight-face 'lazy-highlight) |
c1bc6bb6 | 353 | \f |
b92368b4 JL |
354 | ;; Define isearch help map. |
355 | ||
356 | (defvar isearch-help-map | |
4b65254d | 357 | (let ((map (make-sparse-keymap))) |
b92368b4 JL |
358 | (define-key map (char-to-string help-char) 'isearch-help-for-help) |
359 | (define-key map [help] 'isearch-help-for-help) | |
360 | (define-key map [f1] 'isearch-help-for-help) | |
361 | (define-key map "?" 'isearch-help-for-help) | |
362 | (define-key map "b" 'isearch-describe-bindings) | |
363 | (define-key map "k" 'isearch-describe-key) | |
364 | (define-key map "m" 'isearch-describe-mode) | |
365 | (define-key map "q" 'help-quit) | |
366 | map) | |
4b65254d | 367 | "Keymap for characters following the Help key for Isearch mode.") |
b92368b4 JL |
368 | |
369 | (eval-when-compile (require 'help-macro)) | |
370 | ||
371 | (make-help-screen isearch-help-for-help-internal | |
ce9a0ccb | 372 | (purecopy "Type a help option: [bkm] or ?") |
b92368b4 JL |
373 | "You have typed %THIS-KEY%, the help character. Type a Help option: |
374 | \(Type \\<help-map>\\[help-quit] to exit the Help command.) | |
375 | ||
4b65254d JB |
376 | b Display all Isearch key bindings. |
377 | k KEYS Display full documentation of Isearch key sequence. | |
378 | m Display documentation of Isearch mode. | |
b92368b4 JL |
379 | |
380 | You can't type here other help keys available in the global help map, | |
4b65254d JB |
381 | but outside of this help window when you type them in Isearch mode, |
382 | they exit Isearch mode before displaying global help." | |
b92368b4 JL |
383 | isearch-help-map) |
384 | ||
85178ca1 JL |
385 | (defvar isearch--display-help-action '(nil (inhibit-same-window . t))) |
386 | ||
b92368b4 | 387 | (defun isearch-help-for-help () |
4b65254d | 388 | "Display Isearch help menu." |
b92368b4 | 389 | (interactive) |
85178ca1 | 390 | (let ((display-buffer-overriding-action isearch--display-help-action)) |
b92368b4 JL |
391 | (isearch-help-for-help-internal)) |
392 | (isearch-update)) | |
393 | ||
394 | (defun isearch-describe-bindings () | |
4b65254d JB |
395 | "Show a list of all keys defined in Isearch mode, and their definitions. |
396 | This is like `describe-bindings', but displays only Isearch keys." | |
b92368b4 | 397 | (interactive) |
85178ca1 | 398 | (let ((display-buffer-overriding-action isearch--display-help-action)) |
b92368b4 JL |
399 | (with-help-window "*Help*" |
400 | (with-current-buffer standard-output | |
401 | (princ "Isearch Mode Bindings:\n") | |
402 | (princ (substitute-command-keys "\\{isearch-mode-map}")))))) | |
403 | ||
404 | (defun isearch-describe-key () | |
405 | "Display documentation of the function invoked by isearch key." | |
406 | (interactive) | |
85178ca1 | 407 | (let ((display-buffer-overriding-action isearch--display-help-action)) |
b92368b4 JL |
408 | (call-interactively 'describe-key)) |
409 | (isearch-update)) | |
410 | ||
411 | (defun isearch-describe-mode () | |
4b65254d | 412 | "Display documentation of Isearch mode." |
b92368b4 | 413 | (interactive) |
85178ca1 | 414 | (let ((display-buffer-overriding-action isearch--display-help-action)) |
b92368b4 JL |
415 | (describe-function 'isearch-forward)) |
416 | (isearch-update)) | |
417 | ||
418 | (defalias 'isearch-mode-help 'isearch-describe-mode) | |
419 | ||
420 | \f | |
191f025a | 421 | ;; Define isearch-mode keymap. |
8e1cae6d | 422 | |
02b2f510 | 423 | (defvar isearch-mode-map |
4b65254d JB |
424 | (let ((i 0) |
425 | (map (make-keymap))) | |
8f924df7 | 426 | (or (char-table-p (nth 1 map)) |
02b2f510 SM |
427 | (error "The initialization of isearch-mode-map must be updated")) |
428 | ;; Make all multibyte characters search for themselves. | |
6b61353c | 429 | (set-char-table-range (nth 1 map) (cons #x100 (max-char)) |
5760cdc1 | 430 | 'isearch-printing-char) |
02b2f510 SM |
431 | |
432 | ;; Single-byte printing chars extend the search string by default. | |
6480c508 | 433 | (setq i ?\s) |
02b2f510 SM |
434 | (while (< i 256) |
435 | (define-key map (vector i) 'isearch-printing-char) | |
436 | (setq i (1+ i))) | |
437 | ||
438 | ;; To handle local bindings with meta char prefix keys, define | |
439 | ;; another full keymap. This must be done for any other prefix | |
440 | ;; keys as well, one full keymap per char of the prefix key. It | |
441 | ;; would be simpler to disable the global keymap, and/or have a | |
442 | ;; default local key binding for any key not otherwise bound. | |
443 | (let ((meta-map (make-sparse-keymap))) | |
2178e858 | 444 | (define-key map (char-to-string meta-prefix-char) meta-map)) |
02b2f510 SM |
445 | |
446 | ;; Several non-printing chars change the searching behavior. | |
447 | (define-key map "\C-s" 'isearch-repeat-forward) | |
448 | (define-key map "\C-r" 'isearch-repeat-backward) | |
449 | ;; Define M-C-s and M-C-r like C-s and C-r so that the same key | |
450 | ;; combinations can be used to repeat regexp isearches that can | |
451 | ;; be used to start these searches. | |
452 | (define-key map "\M-\C-s" 'isearch-repeat-forward) | |
453 | (define-key map "\M-\C-r" 'isearch-repeat-backward) | |
454 | (define-key map "\177" 'isearch-delete-char) | |
e4f74da9 | 455 | (define-key map [backspace] 'isearch-delete-char) |
02b2f510 | 456 | (define-key map "\C-g" 'isearch-abort) |
1f4139d5 | 457 | |
02b2f510 SM |
458 | ;; This assumes \e is the meta-prefix-char. |
459 | (or (= ?\e meta-prefix-char) | |
460 | (error "Inconsistency in isearch.el")) | |
461 | (define-key map "\e\e\e" 'isearch-cancel) | |
b48ca14f | 462 | |
02b2f510 | 463 | (define-key map "\C-q" 'isearch-quote-char) |
08200510 | 464 | |
02b2f510 | 465 | (define-key map "\r" 'isearch-exit) |
e4f74da9 | 466 | (define-key map [return] 'isearch-exit) |
02b2f510 SM |
467 | (define-key map "\C-j" 'isearch-printing-char) |
468 | (define-key map "\t" 'isearch-printing-char) | |
ec06d344 | 469 | (define-key map [?\S-\ ] 'isearch-printing-char) |
b48ca14f | 470 | |
74820eb5 JL |
471 | (define-key map "\C-w" 'isearch-yank-word-or-char) |
472 | (define-key map "\M-\C-w" 'isearch-del-char) | |
473 | (define-key map "\M-\C-y" 'isearch-yank-char) | |
892777ba CY |
474 | (define-key map "\C-y" 'isearch-yank-kill) |
475 | (define-key map "\M-s\C-e" 'isearch-yank-line) | |
08200510 | 476 | |
50de6a38 JL |
477 | (define-key map (char-to-string help-char) isearch-help-map) |
478 | (define-key map [help] isearch-help-map) | |
479 | (define-key map [f1] isearch-help-map) | |
08200510 | 480 | |
02b2f510 SM |
481 | (define-key map "\M-n" 'isearch-ring-advance) |
482 | (define-key map "\M-p" 'isearch-ring-retreat) | |
25666126 | 483 | (define-key map "\M-y" 'isearch-yank-pop) |
02b2f510 SM |
484 | |
485 | (define-key map "\M-\t" 'isearch-complete) | |
486 | ||
487 | ;; Pass frame events transparently so they won't exit the search. | |
488 | ;; In particular, if we have more than one display open, then a | |
489 | ;; switch-frame might be generated by someone typing at another keyboard. | |
490 | (define-key map [switch-frame] nil) | |
491 | (define-key map [delete-frame] nil) | |
492 | (define-key map [iconify-frame] nil) | |
493 | (define-key map [make-frame-visible] nil) | |
3f482bc0 | 494 | (define-key map [mouse-movement] nil) |
76197e28 JR |
495 | (define-key map [language-change] nil) |
496 | ||
02b2f510 SM |
497 | ;; For searching multilingual text. |
498 | (define-key map "\C-\\" 'isearch-toggle-input-method) | |
499 | (define-key map "\C-^" 'isearch-toggle-specified-input-method) | |
500 | ||
501 | ;; People expect to be able to paste with the mouse. | |
e4af1426 | 502 | (define-key map [mouse-2] #'isearch-mouse-2) |
02b2f510 SM |
503 | (define-key map [down-mouse-2] nil) |
504 | ||
505 | ;; Some bindings you may want to put in your isearch-mode-hook. | |
506 | ;; Suggest some alternates... | |
507 | (define-key map "\M-c" 'isearch-toggle-case-fold) | |
508 | (define-key map "\M-r" 'isearch-toggle-regexp) | |
509 | (define-key map "\M-e" 'isearch-edit-string) | |
510 | ||
50ab1da6 JL |
511 | (put 'isearch-toggle-case-fold :advertised-binding "\M-sc") |
512 | (put 'isearch-toggle-regexp :advertised-binding "\M-sr") | |
513 | (put 'isearch-edit-string :advertised-binding "\M-se") | |
514 | ||
515 | (define-key map "\M-se" 'isearch-edit-string) | |
b9cb2387 | 516 | (define-key map "\M-sc" 'isearch-toggle-case-fold) |
01dea85f | 517 | (define-key map "\M-si" 'isearch-toggle-invisible) |
70bc5268 JL |
518 | (define-key map "\M-sr" 'isearch-toggle-regexp) |
519 | (define-key map "\M-sw" 'isearch-toggle-word) | |
b9cb2387 | 520 | (define-key map "\M-s_" 'isearch-toggle-symbol) |
63dd1c6f | 521 | (define-key map "\M-s " 'isearch-toggle-lax-whitespace) |
70bc5268 | 522 | |
81e898ea SM |
523 | (define-key map [?\M-%] 'isearch-query-replace) |
524 | (define-key map [?\C-\M-%] 'isearch-query-replace-regexp) | |
6e3057bb | 525 | (define-key map "\M-so" 'isearch-occur) |
11c9f489 | 526 | (define-key map "\M-shr" 'isearch-highlight-regexp) |
74820eb5 | 527 | |
da547b32 JL |
528 | ;; The key translations defined in the C-x 8 prefix should add |
529 | ;; characters to the search string. See iso-transl.el. | |
da547b32 | 530 | (define-key map "\C-x8\r" 'isearch-char-by-name) |
439f7677 | 531 | |
02b2f510 SM |
532 | map) |
533 | "Keymap for `isearch-mode'.") | |
534 | ||
535 | (defvar minibuffer-local-isearch-map | |
536 | (let ((map (make-sparse-keymap))) | |
537 | (set-keymap-parent map minibuffer-local-map) | |
6d65486d | 538 | (define-key map "\r" 'exit-minibuffer) |
02b2f510 | 539 | (define-key map "\M-\t" 'isearch-complete-edit) |
74820eb5 JL |
540 | (define-key map "\C-s" 'isearch-forward-exit-minibuffer) |
541 | (define-key map "\C-r" 'isearch-reverse-exit-minibuffer) | |
542 | (define-key map "\C-f" 'isearch-yank-char-in-minibuffer) | |
543 | (define-key map [right] 'isearch-yank-char-in-minibuffer) | |
02b2f510 | 544 | map) |
4b65254d | 545 | "Keymap for editing Isearch strings in the minibuffer.") |
8e1cae6d | 546 | |
8e1cae6d | 547 | ;; Internal variables declared globally for byte-compiler. |
08200510 RS |
548 | ;; These are all set with setq while isearching |
549 | ;; and bound locally while editing the search string. | |
550 | ||
551 | (defvar isearch-forward nil) ; Searching in the forward direction. | |
552 | (defvar isearch-regexp nil) ; Searching for a regexp. | |
d5e61c1c | 553 | (defvar isearch-word nil |
b9cb2387 | 554 | "Regexp-based search mode for words/symbols. |
d5e61c1c | 555 | If t, do incremental search for a sequence of words, ignoring punctuation. |
b9cb2387 JL |
556 | If the value is a function (e.g. `isearch-symbol-regexp'), it is called to |
557 | convert the search string to a regexp used by regexp search functions. | |
558 | The property `isearch-message-prefix' put on this function specifies the | |
48d1354e | 559 | prefix string displayed in the search message.") |
08200510 | 560 | |
63dd1c6f JL |
561 | (defvar isearch-lax-whitespace t |
562 | "If non-nil, a space will match a sequence of whitespace chars. | |
563 | When you enter a space or spaces in ordinary incremental search, it | |
564 | will match any sequence matched by the regexp defined by the variable | |
565 | `search-whitespace-regexp'. If the value is nil, each space you type | |
566 | matches literally, against one space. You can toggle the value of this | |
567 | variable by the command `isearch-toggle-lax-whitespace'.") | |
568 | ||
569 | (defvar isearch-regexp-lax-whitespace nil | |
570 | "If non-nil, a space will match a sequence of whitespace chars. | |
571 | When you enter a space or spaces in regexp incremental search, it | |
572 | will match any sequence matched by the regexp defined by the variable | |
573 | `search-whitespace-regexp'. If the value is nil, each space you type | |
574 | matches literally, against one space. You can toggle the value of this | |
575 | variable by the command `isearch-toggle-lax-whitespace'.") | |
576 | ||
191f025a | 577 | (defvar isearch-cmds nil |
0d8a4ae7 LI |
578 | "Stack of search status elements. |
579 | Each element is an `isearch--state' struct where the slots are | |
08e3de69 EZ |
580 | [STRING MESSAGE POINT SUCCESS FORWARD OTHER-END WORD |
581 | INVALID-REGEXP WRAPPED BARRIER WITHIN-BRACKETS CASE-FOLD-SEARCH]") | |
191f025a | 582 | |
08200510 RS |
583 | (defvar isearch-string "") ; The current search string. |
584 | (defvar isearch-message "") ; text-char-description version of isearch-string | |
585 | ||
c7015153 JB |
586 | (defvar isearch-message-prefix-add nil) ; Additional text for the message prefix |
587 | (defvar isearch-message-suffix-add nil) ; Additional text for the message suffix | |
ee9b85a8 | 588 | |
ba653a53 JL |
589 | (defvar isearch-success t) ; Searching is currently successful. |
590 | (defvar isearch-error nil) ; Error message for failed search. | |
08200510 RS |
591 | (defvar isearch-other-end nil) ; Start (end) of match if forward (backward). |
592 | (defvar isearch-wrapped nil) ; Searching restarted from the top (bottom). | |
478615cc LMI |
593 | (defvar isearch-barrier 0 |
594 | "Recorded minimum/maximal point for the current search.") | |
99ae9e9f | 595 | (defvar isearch-just-started nil) |
ddbe3d5f | 596 | (defvar isearch-start-hscroll 0) ; hscroll when starting the search. |
8e1cae6d | 597 | |
00c42405 SM |
598 | ;; case-fold-search while searching. |
599 | ;; either nil, t, or 'yes. 'yes means the same as t except that mixed | |
600 | ;; case in the search string is ignored. | |
4453091d | 601 | (defvar isearch-case-fold-search nil) |
8e1cae6d | 602 | |
01dea85f JL |
603 | ;; search-invisible while searching. |
604 | ;; either nil, t, or 'open. 'open means the same as t except that | |
605 | ;; opens hidden overlays. | |
606 | (defvar isearch-invisible search-invisible) | |
607 | ||
67085aba GM |
608 | (defvar isearch-last-case-fold-search nil) |
609 | ||
ae1a21c6 MB |
610 | ;; Used to save default value while isearch is active |
611 | (defvar isearch-original-minibuffer-message-timeout nil) | |
612 | ||
8e1cae6d JB |
613 | (defvar isearch-adjusted nil) |
614 | (defvar isearch-slow-terminal-mode nil) | |
191f025a | 615 | ;; If t, using a small window. |
08200510 | 616 | (defvar isearch-small-window nil) |
8e1cae6d | 617 | (defvar isearch-opoint 0) |
191f025a | 618 | ;; The window configuration active at the beginning of the search. |
08200510 | 619 | (defvar isearch-window-configuration nil) |
8e1cae6d | 620 | |
08200510 RS |
621 | ;; Flag to indicate a yank occurred, so don't move the cursor. |
622 | (defvar isearch-yank-flag nil) | |
8e1cae6d | 623 | |
191f025a SM |
624 | ;; A function to be called after each input character is processed. |
625 | ;; (It is not called after characters that exit the search.) | |
626 | ;; It is only set from an optional argument to `isearch-mode'. | |
08200510 | 627 | (defvar isearch-op-fun nil) |
8e1cae6d | 628 | |
191f025a | 629 | ;; Is isearch-mode in a recursive edit for modal searching. |
08200510 | 630 | (defvar isearch-recursive-edit nil) |
8e1cae6d | 631 | |
191f025a | 632 | ;; Should isearch be terminated after doing one search? |
08200510 RS |
633 | (defvar isearch-nonincremental nil) |
634 | ||
635 | ;; New value of isearch-forward after isearch-edit-string. | |
636 | (defvar isearch-new-forward nil) | |
8e1cae6d | 637 | |
0352b205 RS |
638 | ;; Accumulate here the overlays opened during searching. |
639 | (defvar isearch-opened-overlays nil) | |
8e1cae6d | 640 | |
d5e61c1c JL |
641 | ;; Non-nil if the string exists but is invisible. |
642 | (defvar isearch-hidden nil) | |
643 | ||
99848db0 KH |
644 | ;; The value of input-method-function when isearch is invoked. |
645 | (defvar isearch-input-method-function nil) | |
646 | ||
647 | ;; A flag to tell if input-method-function is locally bound when | |
648 | ;; isearch is invoked. | |
649 | (defvar isearch-input-method-local-p nil) | |
650 | ||
bf093209 JL |
651 | (defvar isearch--saved-overriding-local-map nil) |
652 | ||
8e1cae6d JB |
653 | ;; Minor-mode-alist changes - kind of redundant with the |
654 | ;; echo area, but if isearching in multiple windows, it can be useful. | |
655 | ||
656 | (or (assq 'isearch-mode minor-mode-alist) | |
657 | (nconc minor-mode-alist | |
658 | (list '(isearch-mode isearch-mode)))) | |
659 | ||
08200510 | 660 | (defvar isearch-mode nil) ;; Name of the minor mode, if non-nil. |
8e1cae6d JB |
661 | (make-variable-buffer-local 'isearch-mode) |
662 | ||
fdf5afa4 RS |
663 | (define-key global-map "\C-s" 'isearch-forward) |
664 | (define-key esc-map "\C-s" 'isearch-forward-regexp) | |
665 | (define-key global-map "\C-r" 'isearch-backward) | |
666 | (define-key esc-map "\C-r" 'isearch-backward-regexp) | |
70bc5268 | 667 | (define-key search-map "w" 'isearch-forward-word) |
b9cb2387 | 668 | (define-key search-map "_" 'isearch-forward-symbol) |
e5e4a942 | 669 | (define-key search-map "." 'isearch-forward-symbol-at-point) |
fdf5afa4 | 670 | |
191f025a | 671 | ;; Entry points to isearch-mode. |
8e1cae6d | 672 | |
eceee2c0 | 673 | (defun isearch-forward (&optional regexp-p no-recursive-edit) |
8e1cae6d JB |
674 | "\ |
675 | Do incremental search forward. | |
08200510 RS |
676 | With a prefix argument, do an incremental regular expression search instead. |
677 | \\<isearch-mode-map> | |
8e1cae6d | 678 | As you type characters, they add to the search string and are found. |
b48ca14f | 679 | The following non-printing keys are bound in `isearch-mode-map'. |
8e1cae6d | 680 | |
35904fd3 | 681 | Type \\[isearch-delete-char] to cancel last input item from end of search string. |
8e1cae6d | 682 | Type \\[isearch-exit] to exit, leaving point at location found. |
08200510 RS |
683 | Type LFD (C-j) to match end of line. |
684 | Type \\[isearch-repeat-forward] to search again forward,\ | |
685 | \\[isearch-repeat-backward] to search again backward. | |
0ae85960 RS |
686 | Type \\[isearch-yank-word-or-char] to yank next word or character in buffer |
687 | onto the end of the search string, and search for it. | |
74820eb5 JL |
688 | Type \\[isearch-del-char] to delete character from end of search string. |
689 | Type \\[isearch-yank-char] to yank char from buffer onto end of search\ | |
08200510 RS |
690 | string and search for it. |
691 | Type \\[isearch-yank-line] to yank rest of line onto end of search string\ | |
692 | and search for it. | |
75a07f2c | 693 | Type \\[isearch-yank-kill] to yank the last string of killed text. |
25666126 LL |
694 | Type \\[isearch-yank-pop] to replace string just yanked into search prompt |
695 | with string killed before it. | |
8e1cae6d | 696 | Type \\[isearch-quote-char] to quote control character to search for it. |
da547b32 JL |
697 | Type \\[isearch-char-by-name] to add a character to search by Unicode name,\ |
698 | with completion. | |
08200510 RS |
699 | \\[isearch-abort] while searching or when search has failed cancels input\ |
700 | back to what has | |
701 | been found successfully. | |
702 | \\[isearch-abort] when search is successful aborts and moves point to\ | |
703 | starting point. | |
8e1cae6d | 704 | |
b3612973 RS |
705 | If you try to exit with the search string still empty, it invokes |
706 | nonincremental search. | |
707 | ||
6c551d4e | 708 | Type \\[isearch-toggle-case-fold] to toggle search case-sensitivity. |
01dea85f | 709 | Type \\[isearch-toggle-invisible] to toggle search in invisible text. |
6c551d4e | 710 | Type \\[isearch-toggle-regexp] to toggle regular-expression mode. |
70bc5268 | 711 | Type \\[isearch-toggle-word] to toggle word mode. |
b9cb2387 | 712 | Type \\[isearch-toggle-symbol] to toggle symbol mode. |
63dd1c6f JL |
713 | |
714 | Type \\[isearch-toggle-lax-whitespace] to toggle whitespace matching. | |
715 | In incremental searches, a space or spaces normally matches any whitespace | |
716 | defined by the variable `search-whitespace-regexp'; see also the variables | |
717 | `isearch-lax-whitespace' and `isearch-regexp-lax-whitespace'. | |
718 | ||
6c551d4e EZ |
719 | Type \\[isearch-edit-string] to edit the search string in the minibuffer. |
720 | ||
8e1cae6d JB |
721 | Also supported is a search ring of the previous 16 search strings. |
722 | Type \\[isearch-ring-advance] to search for the next item in the search ring. | |
08200510 RS |
723 | Type \\[isearch-ring-retreat] to search for the previous item in the search\ |
724 | ring. | |
725 | Type \\[isearch-complete] to complete the search string using the search ring. | |
8e1cae6d | 726 | |
70bc5268 JL |
727 | Type \\[isearch-query-replace] to run `query-replace' with string to\ |
728 | replace from last search string. | |
729 | Type \\[isearch-query-replace-regexp] to run `query-replace-regexp'\ | |
730 | with the last search string. | |
731 | Type \\[isearch-occur] to run `occur' that shows\ | |
732 | the last search string. | |
733 | Type \\[isearch-highlight-regexp] to run `highlight-regexp'\ | |
734 | that highlights the last search string. | |
735 | ||
4b65254d JB |
736 | Type \\[isearch-describe-bindings] to display all Isearch key bindings. |
737 | Type \\[isearch-describe-key] to display documentation of Isearch key. | |
738 | Type \\[isearch-describe-mode] to display documentation of Isearch mode. | |
b92368b4 | 739 | |
1e14b095 | 740 | If an input method is turned on in the current buffer, that input |
4b65254d JB |
741 | method is also active while you are typing characters to search. |
742 | To toggle the input method, type \\[isearch-toggle-input-method]. \ | |
743 | It also toggles the input | |
744 | method in the current buffer. | |
37b20c9b | 745 | |
4b65254d JB |
746 | To use a different input method for searching, type \ |
747 | \\[isearch-toggle-specified-input-method], | |
748 | and specify an input method you want to use. | |
37b20c9b | 749 | |
b48ca14f | 750 | The above keys, bound in `isearch-mode-map', are often controlled by |
35904fd3 | 751 | options; do \\[apropos] on search-.* to find them. |
8e1cae6d | 752 | Other control and meta characters terminate the search |
08200510 | 753 | and are then executed normally (depending on `search-exit-option'). |
fd49e05c | 754 | Likewise for function keys and mouse button events. |
8e1cae6d | 755 | |
ac63ec89 JL |
756 | If this function is called non-interactively with a nil NO-RECURSIVE-EDIT, |
757 | it does not return to the calling function until the search is done. | |
758 | See the function `isearch-mode' for more information." | |
8e1cae6d | 759 | |
eceee2c0 | 760 | (interactive "P\np") |
4ae7d00a | 761 | (isearch-mode t (not (null regexp-p)) nil (not no-recursive-edit))) |
8e1cae6d | 762 | |
eceee2c0 | 763 | (defun isearch-forward-regexp (&optional not-regexp no-recursive-edit) |
dd7ffad6 | 764 | "Do incremental search forward for regular expression. |
08200510 | 765 | With a prefix argument, do a regular string search instead. |
8938c0bc JL |
766 | Like ordinary incremental search except that your input is treated |
767 | as a regexp. See the command `isearch-forward' for more information. | |
ab67e8b6 | 768 | |
dd7ffad6 | 769 | In incremental searches, a space or spaces normally matches any |
63dd1c6f JL |
770 | whitespace defined by the variable `search-whitespace-regexp'. |
771 | To search for a literal space and nothing else, enter C-q SPC. | |
772 | To toggle whitespace matching, use `isearch-toggle-lax-whitespace'." | |
eceee2c0 | 773 | (interactive "P\np") |
4ae7d00a | 774 | (isearch-mode t (null not-regexp) nil (not no-recursive-edit))) |
8e1cae6d | 775 | |
70bc5268 | 776 | (defun isearch-forward-word (&optional not-word no-recursive-edit) |
dd7ffad6 | 777 | "Do incremental search forward for a sequence of words. |
70bc5268 | 778 | With a prefix argument, do a regular string search instead. |
8938c0bc JL |
779 | Like ordinary incremental search except that your input is treated |
780 | as a sequence of words without regard to how the words are separated. | |
781 | See the command `isearch-forward' for more information." | |
70bc5268 JL |
782 | (interactive "P\np") |
783 | (isearch-mode t nil nil (not no-recursive-edit) (null not-word))) | |
784 | ||
9d3aa82c | 785 | (defun isearch-forward-symbol (&optional _not-symbol no-recursive-edit) |
dd7ffad6 | 786 | "Do incremental search forward for a symbol. |
b9cb2387 JL |
787 | The prefix argument is currently unused. |
788 | Like ordinary incremental search except that your input is treated | |
789 | as a symbol surrounded by symbol boundary constructs \\_< and \\_>. | |
790 | See the command `isearch-forward' for more information." | |
791 | (interactive "P\np") | |
792 | (isearch-mode t nil nil (not no-recursive-edit) 'isearch-symbol-regexp)) | |
793 | ||
eceee2c0 | 794 | (defun isearch-backward (&optional regexp-p no-recursive-edit) |
dd7ffad6 | 795 | "Do incremental search backward. |
08200510 | 796 | With a prefix argument, do a regular expression search instead. |
8938c0bc | 797 | See the command `isearch-forward' for more information." |
eceee2c0 | 798 | (interactive "P\np") |
4ae7d00a | 799 | (isearch-mode nil (not (null regexp-p)) nil (not no-recursive-edit))) |
8e1cae6d | 800 | |
eceee2c0 | 801 | (defun isearch-backward-regexp (&optional not-regexp no-recursive-edit) |
dd7ffad6 | 802 | "Do incremental search backward for regular expression. |
08200510 | 803 | With a prefix argument, do a regular string search instead. |
8938c0bc JL |
804 | Like ordinary incremental search except that your input is treated |
805 | as a regexp. See the command `isearch-forward' for more information." | |
eceee2c0 | 806 | (interactive "P\np") |
4ae7d00a | 807 | (isearch-mode nil (null not-regexp) nil (not no-recursive-edit))) |
08200510 | 808 | |
e5e4a942 JL |
809 | (defun isearch-forward-symbol-at-point () |
810 | "Do incremental search forward for a symbol found near point. | |
811 | Like ordinary incremental search except that the symbol found at point | |
812 | is added to the search string initially as a regexp surrounded | |
813 | by symbol boundary constructs \\_< and \\_>. | |
814 | See the command `isearch-forward-symbol' for more information." | |
815 | (interactive) | |
816 | (isearch-forward-symbol nil 1) | |
817 | (let ((bounds (find-tag-default-bounds))) | |
818 | (cond | |
819 | (bounds | |
820 | (when (< (car bounds) (point)) | |
821 | (goto-char (car bounds))) | |
822 | (isearch-yank-string | |
823 | (buffer-substring-no-properties (car bounds) (cdr bounds)))) | |
824 | (t | |
825 | (setq isearch-error "No symbol at point") | |
826 | (isearch-update))))) | |
827 | ||
8e1cae6d | 828 | \f |
8e1cae6d JB |
829 | ;; isearch-mode only sets up incremental search for the minor mode. |
830 | ;; All the work is done by the isearch-mode commands. | |
831 | ||
08200510 | 832 | ;; Not used yet: |
d7fa5aa2 | 833 | ;;(defvar isearch-commands '(isearch-forward isearch-backward |
08200510 RS |
834 | ;; isearch-forward-regexp isearch-backward-regexp) |
835 | ;; "List of commands for which isearch-mode does not recursive-edit.") | |
b48ca14f | 836 | |
08200510 | 837 | |
d5e61c1c | 838 | (defun isearch-mode (forward &optional regexp op-fun recursive-edit word) |
4b65254d | 839 | "Start Isearch minor mode. |
ac63ec89 JL |
840 | It is called by the function `isearch-forward' and other related functions. |
841 | ||
842 | The non-nil arg FORWARD means searching in the forward direction. | |
843 | ||
844 | The non-nil arg REGEXP does an incremental regular expression search. | |
845 | ||
846 | The arg OP-FUN is a function to be called after each input character | |
847 | is processed. (It is not called after characters that exit the search.) | |
848 | ||
849 | When the arg RECURSIVE-EDIT is non-nil, this function behaves modally and | |
850 | does not return to the calling function until the search is completed. | |
851 | To behave this way it enters a recursive-edit and exits it when done | |
852 | isearching. | |
853 | ||
854 | The arg WORD, if t, does incremental search for a sequence of words, | |
855 | ignoring punctuation. If the value is a function, it is called to | |
856 | convert the search string to a regexp used by regexp search functions." | |
8e1cae6d JB |
857 | |
858 | ;; Initialize global vars. | |
859 | (setq isearch-forward forward | |
860 | isearch-regexp regexp | |
d5e61c1c | 861 | isearch-word word |
8e1cae6d | 862 | isearch-op-fun op-fun |
67085aba | 863 | isearch-last-case-fold-search isearch-case-fold-search |
8e1cae6d | 864 | isearch-case-fold-search case-fold-search |
01dea85f | 865 | isearch-invisible search-invisible |
8e1cae6d JB |
866 | isearch-string "" |
867 | isearch-message "" | |
868 | isearch-cmds nil | |
869 | isearch-success t | |
870 | isearch-wrapped nil | |
871 | isearch-barrier (point) | |
872 | isearch-adjusted nil | |
873 | isearch-yank-flag nil | |
ba653a53 | 874 | isearch-error nil |
0cabad13 | 875 | isearch-slow-terminal-mode (and (<= baud-rate search-slow-speed) |
8e1cae6d | 876 | (> (window-height) |
fad241d3 RS |
877 | (* 4 |
878 | (abs search-slow-window-lines)))) | |
8e1cae6d JB |
879 | isearch-other-end nil |
880 | isearch-small-window nil | |
99ae9e9f | 881 | isearch-just-started t |
ddbe3d5f | 882 | isearch-start-hscroll (window-hscroll) |
8e1cae6d | 883 | |
8e1cae6d | 884 | isearch-opoint (point) |
a5dcf63f | 885 | search-ring-yank-pointer nil |
0352b205 | 886 | isearch-opened-overlays nil |
99848db0 KH |
887 | isearch-input-method-function input-method-function |
888 | isearch-input-method-local-p (local-variable-p 'input-method-function) | |
ae1a21c6 MB |
889 | regexp-search-ring-yank-pointer nil |
890 | ||
891 | ;; Save the original value of `minibuffer-message-timeout', and | |
892 | ;; set it to nil so that isearch's messages don't get timed out. | |
893 | isearch-original-minibuffer-message-timeout minibuffer-message-timeout | |
894 | minibuffer-message-timeout nil) | |
99848db0 KH |
895 | |
896 | ;; We must bypass input method while reading key. When a user type | |
897 | ;; printable character, appropriate input method is turned on in | |
380866a2 | 898 | ;; minibuffer to read multibyte characters. |
99848db0 KH |
899 | (or isearch-input-method-local-p |
900 | (make-local-variable 'input-method-function)) | |
901 | (setq input-method-function nil) | |
902 | ||
99ae9e9f | 903 | (looking-at "") |
292a8dff RS |
904 | (setq isearch-window-configuration |
905 | (if isearch-slow-terminal-mode (current-window-configuration) nil)) | |
70418205 | 906 | |
18ce7555 RS |
907 | ;; Maybe make minibuffer frame visible and/or raise it. |
908 | (let ((frame (window-frame (minibuffer-window)))) | |
360e0dd5 RS |
909 | (unless (memq (frame-live-p frame) '(nil t)) |
910 | (unless (frame-visible-p frame) | |
911 | (make-frame-visible frame)) | |
912 | (if minibuffer-auto-raise | |
913 | (raise-frame frame)))) | |
18ce7555 | 914 | |
8e1cae6d | 915 | (setq isearch-mode " Isearch") ;; forward? regexp? |
1cd3732c | 916 | (force-mode-line-update) |
8e1cae6d | 917 | |
c7955222 | 918 | (setq overriding-terminal-local-map isearch-mode-map) |
8e1cae6d | 919 | (run-hooks 'isearch-mode-hook) |
bf093209 JL |
920 | ;; Remember the initial map possibly modified |
921 | ;; by external packages in isearch-mode-hook. (Bug#16035) | |
922 | (setq isearch--saved-overriding-local-map overriding-terminal-local-map) | |
40637410 JL |
923 | |
924 | ;; Pushing the initial state used to be before running isearch-mode-hook, | |
925 | ;; but a hook might set `isearch-push-state-function' used in | |
926 | ;; `isearch-push-state' to save mode-specific initial state. (Bug#4994) | |
927 | (isearch-push-state) | |
928 | ||
5ce25ae7 | 929 | (isearch-update) |
08200510 | 930 | |
c085e5b9 JL |
931 | (add-hook 'pre-command-hook 'isearch-pre-command-hook) |
932 | (add-hook 'post-command-hook 'isearch-post-command-hook) | |
bfe2d334 | 933 | (add-hook 'mouse-leave-buffer-hook 'isearch-done) |
7e56ea04 | 934 | (add-hook 'kbd-macro-termination-hook 'isearch-done) |
6e5cd0ae | 935 | |
b48ca14f JB |
936 | ;; isearch-mode can be made modal (in the sense of not returning to |
937 | ;; the calling function until searching is completed) by entering | |
08200510 | 938 | ;; a recursive-edit and exiting it when done isearching. |
130bf67c RS |
939 | (if recursive-edit |
940 | (let ((isearch-recursive-edit t)) | |
941 | (recursive-edit))) | |
0daa17f3 | 942 | isearch-success) |
8e1cae6d JB |
943 | |
944 | ||
8e1cae6d JB |
945 | ;; Some high level utilities. Others below. |
946 | ||
947 | (defun isearch-update () | |
987a0a16 GM |
948 | "This is called after every isearch command to update the display. |
949 | The last thing it does is to run `isearch-update-post-hook'." | |
4c01d4bd RS |
950 | (if (and (null unread-command-events) |
951 | (null executing-kbd-macro)) | |
8e1cae6d | 952 | (progn |
c982ab21 | 953 | (if (not (input-pending-p)) |
ac475d3a JL |
954 | (if isearch-message-function |
955 | (funcall isearch-message-function) | |
956 | (isearch-message))) | |
c982ab21 | 957 | (if (and isearch-slow-terminal-mode |
b48ca14f | 958 | (not (or isearch-small-window |
c982ab21 GM |
959 | (pos-visible-in-window-p)))) |
960 | (let ((found-point (point))) | |
961 | (setq isearch-small-window t) | |
962 | (move-to-window-line 0) | |
963 | (let ((window-min-height 1)) | |
964 | (split-window nil (if (< search-slow-window-lines 0) | |
965 | (1+ (- search-slow-window-lines)) | |
966 | (- (window-height) | |
967 | (1+ search-slow-window-lines))))) | |
968 | (if (< search-slow-window-lines 0) | |
969 | (progn (vertical-motion (- 1 search-slow-window-lines)) | |
970 | (set-window-start (next-window) (point)) | |
971 | (set-window-hscroll (next-window) | |
972 | (window-hscroll)) | |
973 | (set-window-hscroll (selected-window) 0)) | |
974 | (other-window 1)) | |
ddbe3d5f RS |
975 | (goto-char found-point)) |
976 | ;; Keep same hscrolling as at the start of the search when possible | |
977 | (let ((current-scroll (window-hscroll))) | |
978 | (set-window-hscroll (selected-window) isearch-start-hscroll) | |
979 | (unless (pos-visible-in-window-p) | |
980 | (set-window-hscroll (selected-window) current-scroll)))) | |
981 | (if isearch-other-end | |
c982ab21 GM |
982 | (if (< isearch-other-end (point)) ; isearch-forward? |
983 | (isearch-highlight isearch-other-end (point)) | |
984 | (isearch-highlight (point) isearch-other-end)) | |
dd7ffad6 | 985 | (isearch-dehighlight)))) |
8e1cae6d JB |
986 | (setq ;; quit-flag nil not for isearch-mode |
987 | isearch-adjusted nil | |
988 | isearch-yank-flag nil) | |
f9114cec | 989 | (when isearch-lazy-highlight |
d9dd1f33 | 990 | (isearch-lazy-highlight-new-loop)) |
a5cc922e KH |
991 | ;; We must prevent the point moving to the end of composition when a |
992 | ;; part of the composition has just been searched. | |
a6020335 MH |
993 | (setq disable-point-adjustment t) |
994 | (run-hooks 'isearch-update-post-hook)) | |
8e1cae6d | 995 | |
0daa17f3 | 996 | (defun isearch-done (&optional nopush edit) |
87e97673 RS |
997 | "Exit Isearch mode. |
998 | For successful search, pass no args. | |
999 | For a failing search, NOPUSH is t. | |
1000 | For going to the minibuffer to edit the search string, | |
1001 | NOPUSH is t and EDIT is t." | |
1002 | ||
00098b01 | 1003 | (if isearch-resume-in-command-history |
6848c9f1 KS |
1004 | (let ((command `(isearch-resume ,isearch-string ,isearch-regexp |
1005 | ,isearch-word ,isearch-forward | |
1006 | ,isearch-message | |
1007 | ',isearch-case-fold-search))) | |
1008 | (unless (equal (car command-history) command) | |
1009 | (setq command-history (cons command command-history))))) | |
c40a4de1 | 1010 | |
c085e5b9 JL |
1011 | (remove-hook 'pre-command-hook 'isearch-pre-command-hook) |
1012 | (remove-hook 'post-command-hook 'isearch-post-command-hook) | |
bfe2d334 | 1013 | (remove-hook 'mouse-leave-buffer-hook 'isearch-done) |
7e56ea04 | 1014 | (remove-hook 'kbd-macro-termination-hook 'isearch-done) |
d196f58d GM |
1015 | (setq isearch-lazy-highlight-start nil) |
1016 | ||
8e1cae6d | 1017 | ;; Called by all commands that terminate isearch-mode. |
35a4d143 | 1018 | ;; If NOPUSH is non-nil, we don't push the string on the search ring. |
c7955222 | 1019 | (setq overriding-terminal-local-map nil) |
08200510 | 1020 | ;; (setq pre-command-hook isearch-old-pre-command-hook) ; for lemacs |
ae1a21c6 | 1021 | (setq minibuffer-message-timeout isearch-original-minibuffer-message-timeout) |
4dbbcb46 | 1022 | (isearch-dehighlight) |
46fe9018 | 1023 | (lazy-highlight-cleanup lazy-highlight-cleanup) |
290d5b58 | 1024 | (let ((found-start (window-start)) |
08200510 | 1025 | (found-point (point))) |
d8a4fc44 RS |
1026 | (when isearch-window-configuration |
1027 | (set-window-configuration isearch-window-configuration) | |
1028 | (if isearch-small-window | |
1029 | (goto-char found-point) | |
1030 | ;; set-window-configuration clobbers window-start; restore it. | |
1031 | ;; This has an annoying side effect of clearing the last_modiff | |
1032 | ;; field of the window, which can cause unwanted scrolling, | |
1033 | ;; so don't do it unless truly necessary. | |
1034 | (set-window-start (selected-window) found-start t)))) | |
08200510 RS |
1035 | |
1036 | (setq isearch-mode nil) | |
99848db0 KH |
1037 | (if isearch-input-method-local-p |
1038 | (setq input-method-function isearch-input-method-function) | |
1039 | (kill-local-variable 'input-method-function)) | |
1040 | ||
1cd3732c | 1041 | (force-mode-line-update) |
8e1cae6d | 1042 | |
df01192b RS |
1043 | ;; If we ended in the middle of some intangible text, |
1044 | ;; move to the further end of that intangible text. | |
1045 | (let ((after (if (eobp) nil | |
1046 | (get-text-property (point) 'intangible))) | |
1047 | (before (if (bobp) nil | |
1048 | (get-text-property (1- (point)) 'intangible)))) | |
1049 | (when (and before after (eq before after)) | |
7c2dc8bd SM |
1050 | (goto-char |
1051 | (if isearch-forward | |
1052 | (next-single-property-change (point) 'intangible) | |
1053 | (previous-single-property-change (point) 'intangible))))) | |
df01192b | 1054 | |
35a4d143 | 1055 | (if (and (> (length isearch-string) 0) (not nopush)) |
8e1cae6d | 1056 | ;; Update the ring data. |
73d2bf95 | 1057 | (isearch-update-ring isearch-string isearch-regexp)) |
8e1cae6d | 1058 | |
87e97673 RS |
1059 | (let ((isearch-mode-end-hook-quit (and nopush (not edit)))) |
1060 | (run-hooks 'isearch-mode-end-hook)) | |
071fdd66 JL |
1061 | |
1062 | ;; If there was movement, mark the starting position. | |
4837b516 | 1063 | ;; Maybe should test difference between and set mark only if > threshold. |
071fdd66 JL |
1064 | (if (/= (point) isearch-opoint) |
1065 | (or (and transient-mark-mode mark-active) | |
1066 | (progn | |
1067 | (push-mark isearch-opoint t) | |
9a45d6c3 | 1068 | (or executing-kbd-macro (> (minibuffer-depth) 0) edit |
071fdd66 JL |
1069 | (message "Mark saved where search started"))))) |
1070 | ||
0daa17f3 | 1071 | (and (not edit) isearch-recursive-edit (exit-recursive-edit))) |
08200510 | 1072 | |
73d2bf95 RS |
1073 | (defun isearch-update-ring (string &optional regexp) |
1074 | "Add STRING to the beginning of the search ring. | |
a2b7dcc7 | 1075 | REGEXP if non-nil says use the regexp search ring." |
77e5aef9 KS |
1076 | (add-to-history |
1077 | (if regexp 'regexp-search-ring 'search-ring) | |
1078 | string | |
1079 | (if regexp regexp-search-ring-max search-ring-max))) | |
73d2bf95 | 1080 | |
191f025a SM |
1081 | ;; Switching buffers should first terminate isearch-mode. |
1082 | ;; ;; For Emacs 19, the frame switch event is handled. | |
1083 | ;; (defun isearch-switch-frame-handler () | |
1084 | ;; (interactive) ;; Is this necessary? | |
1085 | ;; ;; First terminate isearch-mode. | |
1086 | ;; (isearch-done) | |
1087 | ;; (isearch-clean-overlays) | |
8989a920 | 1088 | ;; (handle-switch-frame (car (cdr last-command-event)))) |
08200510 | 1089 | |
8e1cae6d | 1090 | \f |
08e3de69 EZ |
1091 | ;; The search status structure and stack. |
1092 | ||
7c2dc8bd SM |
1093 | (cl-defstruct (isearch--state |
1094 | (:constructor nil) | |
1095 | (:copier nil) | |
1096 | (:constructor isearch--get-state | |
1097 | (&aux | |
1098 | (string isearch-string) | |
1099 | (message isearch-message) | |
1100 | (point (point)) | |
1101 | (success isearch-success) | |
1102 | (forward isearch-forward) | |
1103 | (other-end isearch-other-end) | |
1104 | (word isearch-word) | |
1105 | (error isearch-error) | |
1106 | (wrapped isearch-wrapped) | |
1107 | (barrier isearch-barrier) | |
1108 | (case-fold-search isearch-case-fold-search) | |
1109 | (pop-fun (if isearch-push-state-function | |
1110 | (funcall isearch-push-state-function)))))) | |
1111 | (string :read-only t) | |
1112 | (message :read-only t) | |
1113 | (point :read-only t) | |
1114 | (success :read-only t) | |
1115 | (forward :read-only t) | |
1116 | (other-end :read-only t) | |
1117 | (word :read-only t) | |
1118 | (error :read-only t) | |
1119 | (wrapped :read-only t) | |
1120 | (barrier :read-only t) | |
1121 | (case-fold-search :read-only t) | |
1122 | (pop-fun :read-only t)) | |
1123 | ||
1124 | (defun isearch--set-state (cmd) | |
1125 | (setq isearch-string (isearch--state-string cmd) | |
1126 | isearch-message (isearch--state-message cmd) | |
1127 | isearch-success (isearch--state-success cmd) | |
1128 | isearch-forward (isearch--state-forward cmd) | |
1129 | isearch-other-end (isearch--state-other-end cmd) | |
1130 | isearch-word (isearch--state-word cmd) | |
1131 | isearch-error (isearch--state-error cmd) | |
1132 | isearch-wrapped (isearch--state-wrapped cmd) | |
1133 | isearch-barrier (isearch--state-barrier cmd) | |
1134 | isearch-case-fold-search (isearch--state-case-fold-search cmd)) | |
1135 | (if (functionp (isearch--state-pop-fun cmd)) | |
1136 | (funcall (isearch--state-pop-fun cmd) cmd)) | |
1137 | (goto-char (isearch--state-point cmd))) | |
08e3de69 EZ |
1138 | |
1139 | (defun isearch-pop-state () | |
1140 | (setq isearch-cmds (cdr isearch-cmds)) | |
7c2dc8bd | 1141 | (isearch--set-state (car isearch-cmds))) |
08e3de69 EZ |
1142 | |
1143 | (defun isearch-push-state () | |
7c2dc8bd | 1144 | (push (isearch--get-state) isearch-cmds)) |
08e3de69 EZ |
1145 | |
1146 | \f | |
8e1cae6d JB |
1147 | ;; Commands active while inside of the isearch minor mode. |
1148 | ||
1149 | (defun isearch-exit () | |
1150 | "Exit search normally. | |
1151 | However, if this is the first command after starting incremental | |
1152 | search and `search-nonincremental-instead' is non-nil, do a | |
08200510 | 1153 | nonincremental search instead via `isearch-edit-string'." |
8e1cae6d | 1154 | (interactive) |
b48ca14f | 1155 | (if (and search-nonincremental-instead |
8e1cae6d | 1156 | (= 0 (length isearch-string))) |
08200510 RS |
1157 | (let ((isearch-nonincremental t)) |
1158 | (isearch-edit-string))) | |
0352b205 RS |
1159 | (isearch-done) |
1160 | (isearch-clean-overlays)) | |
8e1cae6d | 1161 | |
72779976 JL |
1162 | (defun isearch-fail-pos (&optional msg) |
1163 | "Return position of first mismatch in search string, or nil if none. | |
9fc9a531 | 1164 | If MSG is non-nil, use variable `isearch-message', otherwise `isearch-string'." |
72779976 JL |
1165 | (let ((cmds isearch-cmds) |
1166 | (curr-msg (if msg isearch-message isearch-string)) | |
1167 | succ-msg) | |
1168 | (when (or (not isearch-success) isearch-error) | |
3ffa2d4f DH |
1169 | (while (and cmds |
1170 | (or (not (isearch--state-success (car cmds))) | |
1171 | (isearch--state-error (car cmds)))) | |
b74aa22b | 1172 | (pop cmds)) |
7c2dc8bd SM |
1173 | (setq succ-msg (and cmds (if msg (isearch--state-message (car cmds)) |
1174 | (isearch--state-string (car cmds))))) | |
72779976 JL |
1175 | (if (and (stringp succ-msg) |
1176 | (< (length succ-msg) (length curr-msg)) | |
1177 | (equal succ-msg | |
1178 | (substring curr-msg 0 (length succ-msg)))) | |
1179 | (length succ-msg) | |
1180 | 0)))) | |
b74aa22b | 1181 | |
279f9b06 JL |
1182 | (defmacro with-isearch-suspended (&rest body) |
1183 | "Exit Isearch mode, run BODY, and reinvoke the pending search. | |
1184 | You can update the global isearch variables by setting new values to | |
1185 | `isearch-new-string', `isearch-new-message', `isearch-new-forward', | |
1186 | `isearch-new-word', `isearch-new-case-fold'." | |
08200510 RS |
1187 | ;; This code is very hairy for several reasons, explained in the code. |
1188 | ;; Mainly, isearch-mode must be terminated while editing and then restarted. | |
1189 | ;; If there were a way to catch any change of buffer from the minibuffer, | |
1190 | ;; this could be simplified greatly. | |
eb8c3be9 | 1191 | ;; Editing doesn't back up the search point. Should it? |
279f9b06 | 1192 | `(condition-case nil |
e900ced4 RS |
1193 | (progn |
1194 | (let ((isearch-nonincremental isearch-nonincremental) | |
1195 | ||
1196 | ;; Locally bind all isearch global variables to protect them | |
1197 | ;; from recursive isearching. | |
1198 | ;; isearch-string -message and -forward are not bound | |
1199 | ;; so they may be changed. Instead, save the values. | |
1200 | (isearch-new-string isearch-string) | |
1201 | (isearch-new-message isearch-message) | |
1202 | (isearch-new-forward isearch-forward) | |
1203 | (isearch-new-word isearch-word) | |
80302a81 | 1204 | (isearch-new-case-fold isearch-case-fold-search) |
e900ced4 RS |
1205 | |
1206 | (isearch-regexp isearch-regexp) | |
1207 | (isearch-op-fun isearch-op-fun) | |
1208 | (isearch-cmds isearch-cmds) | |
1209 | (isearch-success isearch-success) | |
1210 | (isearch-wrapped isearch-wrapped) | |
1211 | (isearch-barrier isearch-barrier) | |
1212 | (isearch-adjusted isearch-adjusted) | |
1213 | (isearch-yank-flag isearch-yank-flag) | |
ba653a53 | 1214 | (isearch-error isearch-error) |
e900ced4 RS |
1215 | ;;; Don't bind this. We want isearch-search, below, to set it. |
1216 | ;;; And the old value won't matter after that. | |
1217 | ;;; (isearch-other-end isearch-other-end) | |
1218 | ;;; Perhaps some of these other variables should be bound for a | |
1219 | ;;; shorter period, ending before the next isearch-search. | |
1220 | ;;; But there doesn't seem to be a real bug, so let's not risk it now. | |
1221 | (isearch-opoint isearch-opoint) | |
1222 | (isearch-slow-terminal-mode isearch-slow-terminal-mode) | |
1223 | (isearch-small-window isearch-small-window) | |
1224 | (isearch-recursive-edit isearch-recursive-edit) | |
1225 | ;; Save current configuration so we can restore it here. | |
1226 | (isearch-window-configuration (current-window-configuration)) | |
ae1a21c6 | 1227 | |
93eb7113 JL |
1228 | ;; This could protect the index of the search rings, |
1229 | ;; but we can't reliably count the number of typed M-p | |
1230 | ;; in `read-from-minibuffer' to adjust the index accordingly. | |
1231 | ;; So when the following is commented out, `isearch-mode' | |
1232 | ;; below resets the index to the predictable value nil. | |
1233 | ;; (search-ring-yank-pointer search-ring-yank-pointer) | |
1234 | ;; (regexp-search-ring-yank-pointer regexp-search-ring-yank-pointer) | |
1235 | ||
ae1a21c6 MB |
1236 | ;; Temporarily restore `minibuffer-message-timeout'. |
1237 | (minibuffer-message-timeout | |
1238 | isearch-original-minibuffer-message-timeout) | |
1239 | (isearch-original-minibuffer-message-timeout | |
1240 | isearch-original-minibuffer-message-timeout) | |
02b99a17 | 1241 | old-point old-other-end) |
e900ced4 RS |
1242 | |
1243 | ;; Actually terminate isearching until editing is done. | |
b48ca14f | 1244 | ;; This is so that the user can do anything without failure, |
e900ced4 | 1245 | ;; like switch buffers and start another isearch, and return. |
06b60517 | 1246 | (condition-case nil |
e900ced4 RS |
1247 | (isearch-done t t) |
1248 | (exit nil)) ; was recursive editing | |
1249 | ||
02b99a17 JL |
1250 | ;; Save old point and isearch-other-end before reading from minibuffer |
1251 | ;; that can change their values. | |
1252 | (setq old-point (point) old-other-end isearch-other-end) | |
1253 | ||
e900ced4 | 1254 | (unwind-protect |
279f9b06 | 1255 | (progn ,@body) |
02b99a17 JL |
1256 | |
1257 | ;; Set point at the start (end) of old match if forward (backward), | |
1258 | ;; so after exiting minibuffer isearch resumes at the start (end) | |
1259 | ;; of this match and can find it again. | |
1260 | (if (and old-other-end (eq old-point (point)) | |
1261 | (eq isearch-forward isearch-new-forward)) | |
1262 | (goto-char old-other-end)) | |
1263 | ||
e900ced4 | 1264 | ;; Always resume isearching by restarting it. |
b48ca14f JB |
1265 | (isearch-mode isearch-forward |
1266 | isearch-regexp | |
1267 | isearch-op-fun | |
e900ced4 RS |
1268 | nil |
1269 | isearch-word) | |
1270 | ||
1271 | ;; Copy new local values to isearch globals | |
1272 | (setq isearch-string isearch-new-string | |
1273 | isearch-message isearch-new-message | |
1274 | isearch-forward isearch-new-forward | |
80302a81 JL |
1275 | isearch-word isearch-new-word |
1276 | isearch-case-fold-search isearch-new-case-fold)) | |
e900ced4 RS |
1277 | |
1278 | ;; Empty isearch-string means use default. | |
11dcdbb2 JL |
1279 | (when (= 0 (length isearch-string)) |
1280 | (setq isearch-string (or (car (if isearch-regexp | |
1281 | regexp-search-ring | |
1282 | search-ring)) | |
1283 | "") | |
1284 | ||
1285 | isearch-message | |
1286 | (mapconcat 'isearch-text-char-description | |
1287 | isearch-string "")) | |
1288 | ;; After taking the last element, adjust ring to previous one. | |
1289 | (isearch-ring-adjust1 nil))) | |
e900ced4 | 1290 | |
a71a98cf JL |
1291 | ;; This used to push the state as of before this C-s, but it adds |
1292 | ;; an inconsistent state where part of variables are from the | |
1293 | ;; previous search (e.g. `isearch-success'), and part of variables | |
1294 | ;; are just entered from the minibuffer (e.g. `isearch-string'). | |
1295 | ;; (isearch-push-state) | |
08200510 RS |
1296 | |
1297 | ;; Reinvoke the pending search. | |
08200510 | 1298 | (isearch-search) |
a71a98cf | 1299 | (isearch-push-state) ; this pushes the correct state |
08200510 | 1300 | (isearch-update) |
b48ca14f | 1301 | (if isearch-nonincremental |
08200510 RS |
1302 | (progn |
1303 | ;; (sit-for 1) ;; needed if isearch-done does: (message "") | |
40c7f256 RS |
1304 | (isearch-done) |
1305 | ;; The search done message is confusing when the string | |
1306 | ;; is empty, so erase it. | |
1307 | (if (equal isearch-string "") | |
1308 | (message ""))))) | |
8e1cae6d | 1309 | |
08200510 RS |
1310 | (quit ; handle abort-recursive-edit |
1311 | (isearch-abort) ;; outside of let to restore outside global values | |
1312 | ))) | |
1313 | ||
50ab1da6 JL |
1314 | (defvar minibuffer-history-symbol) ;; from external package gmhist.el |
1315 | ||
279f9b06 JL |
1316 | (defun isearch-edit-string () |
1317 | "Edit the search string in the minibuffer. | |
1318 | The following additional command keys are active while editing. | |
1319 | \\<minibuffer-local-isearch-map> | |
1320 | \\[exit-minibuffer] to resume incremental searching with the edited string. | |
279f9b06 JL |
1321 | \\[isearch-forward-exit-minibuffer] to resume isearching forward. |
1322 | \\[isearch-reverse-exit-minibuffer] to resume isearching backward. | |
1323 | \\[isearch-complete-edit] to complete the search string using the search ring." | |
1324 | (interactive) | |
1325 | (with-isearch-suspended | |
1326 | (let* ((message-log-max nil) | |
1327 | ;; Don't add a new search string to the search ring here | |
1328 | ;; in `read-from-minibuffer'. It should be added only | |
1329 | ;; by `isearch-update-ring' called from `isearch-done'. | |
1330 | (history-add-new-input nil) | |
1331 | ;; Binding minibuffer-history-symbol to nil is a work-around | |
1332 | ;; for some incompatibility with gmhist. | |
1333 | (minibuffer-history-symbol)) | |
1334 | (setq isearch-new-string | |
1335 | (read-from-minibuffer | |
1336 | (isearch-message-prefix nil isearch-nonincremental) | |
1337 | (cons isearch-string (1+ (or (isearch-fail-pos) | |
1338 | (length isearch-string)))) | |
1339 | minibuffer-local-isearch-map nil | |
1340 | (if isearch-regexp | |
1341 | (cons 'regexp-search-ring | |
1342 | (1+ (or regexp-search-ring-yank-pointer -1))) | |
1343 | (cons 'search-ring | |
1344 | (1+ (or search-ring-yank-pointer -1)))) | |
1345 | nil t) | |
1346 | isearch-new-message | |
1347 | (mapconcat 'isearch-text-char-description | |
1348 | isearch-new-string ""))))) | |
1349 | ||
08200510 RS |
1350 | (defun isearch-nonincremental-exit-minibuffer () |
1351 | (interactive) | |
1352 | (setq isearch-nonincremental t) | |
1353 | (exit-minibuffer)) | |
6d65486d JL |
1354 | ;; Changing the value of `isearch-nonincremental' has no effect here, |
1355 | ;; because `isearch-edit-string' ignores this change. Thus marked as obsolete. | |
1356 | (make-obsolete 'isearch-nonincremental-exit-minibuffer 'exit-minibuffer "24.4") | |
08200510 RS |
1357 | |
1358 | (defun isearch-forward-exit-minibuffer () | |
6d65486d | 1359 | "Resume isearching forward from the minibuffer that edits the search string." |
08200510 RS |
1360 | (interactive) |
1361 | (setq isearch-new-forward t) | |
1362 | (exit-minibuffer)) | |
8e1cae6d | 1363 | |
08200510 | 1364 | (defun isearch-reverse-exit-minibuffer () |
6d65486d | 1365 | "Resume isearching backward from the minibuffer that edits the search string." |
8e1cae6d | 1366 | (interactive) |
08200510 RS |
1367 | (setq isearch-new-forward nil) |
1368 | (exit-minibuffer)) | |
1369 | ||
19993c54 RS |
1370 | (defun isearch-cancel () |
1371 | "Terminate the search and go back to the starting point." | |
1372 | (interactive) | |
40637410 JL |
1373 | (if (and isearch-push-state-function isearch-cmds) |
1374 | ;; For defined push-state function, restore the first state. | |
1375 | ;; This calls pop-state function and restores original point. | |
1376 | (let ((isearch-cmds (last isearch-cmds))) | |
7c2dc8bd | 1377 | (isearch--set-state (car isearch-cmds))) |
40637410 | 1378 | (goto-char isearch-opoint)) |
7c2dc8bd | 1379 | (isearch-done t) ; Exit isearch.. |
0352b205 | 1380 | (isearch-clean-overlays) |
7c2dc8bd | 1381 | (signal 'quit nil)) ; ..and pass on quit signal. |
08200510 RS |
1382 | |
1383 | (defun isearch-abort () | |
b7852303 | 1384 | "Abort incremental search mode if searching is successful, signaling quit. |
08200510 | 1385 | Otherwise, revert to previous successful search and continue searching. |
b7852303 | 1386 | Use `isearch-exit' to quit without signaling." |
08200510 | 1387 | (interactive) |
7c2dc8bd | 1388 | ;; (ding) signal instead below, if quitting |
8e1cae6d | 1389 | (discard-input) |
d4119912 JL |
1390 | (if (and isearch-success (not isearch-error)) |
1391 | ;; If search is successful and has no incomplete regexp, | |
1392 | ;; move back to starting point and really do quit. | |
6a18e4e7 JL |
1393 | (progn |
1394 | (setq isearch-success nil) | |
1395 | (isearch-cancel)) | |
925a67ca RS |
1396 | ;; If search is failing, or has an incomplete regexp, |
1397 | ;; rub out until it is once more successful. | |
ba653a53 | 1398 | (while (or (not isearch-success) isearch-error) |
925a67ca | 1399 | (isearch-pop-state)) |
8e1cae6d JB |
1400 | (isearch-update))) |
1401 | ||
8e1cae6d JB |
1402 | (defun isearch-repeat (direction) |
1403 | ;; Utility for isearch-repeat-forward and -backward. | |
1404 | (if (eq isearch-forward (eq direction 'forward)) | |
1405 | ;; C-s in forward or C-r in reverse. | |
1406 | (if (equal isearch-string "") | |
1407 | ;; If search string is empty, use last one. | |
ece75c05 JL |
1408 | (if (null (if isearch-regexp regexp-search-ring search-ring)) |
1409 | (setq isearch-error "No previous search string") | |
1410 | (setq isearch-string | |
7c2dc8bd | 1411 | (car (if isearch-regexp regexp-search-ring search-ring)) |
ece75c05 JL |
1412 | isearch-message |
1413 | (mapconcat 'isearch-text-char-description | |
1414 | isearch-string "") | |
11dcdbb2 JL |
1415 | isearch-case-fold-search isearch-last-case-fold-search) |
1416 | ;; After taking the last element, adjust ring to previous one. | |
1417 | (isearch-ring-adjust1 nil)) | |
8e1cae6d JB |
1418 | ;; If already have what to search for, repeat it. |
1419 | (or isearch-success | |
02b2f510 | 1420 | (progn |
ba653a53 JL |
1421 | ;; Set isearch-wrapped before calling isearch-wrap-function |
1422 | (setq isearch-wrapped t) | |
6a18e4e7 JL |
1423 | (if isearch-wrap-function |
1424 | (funcall isearch-wrap-function) | |
ba653a53 | 1425 | (goto-char (if isearch-forward (point-min) (point-max))))))) |
8e1cae6d | 1426 | ;; C-s in reverse or C-r in forward, change direction. |
f4c49513 RS |
1427 | (setq isearch-forward (not isearch-forward) |
1428 | isearch-success t)) | |
8e1cae6d JB |
1429 | |
1430 | (setq isearch-barrier (point)) ; For subsequent \| if regexp. | |
6fefdc4b RS |
1431 | |
1432 | (if (equal isearch-string "") | |
1433 | (setq isearch-success t) | |
512bfd85 RS |
1434 | (if (and isearch-success |
1435 | (equal (point) isearch-other-end) | |
99ae9e9f | 1436 | (not isearch-just-started)) |
8e1cae6d JB |
1437 | ;; If repeating a search that found |
1438 | ;; an empty string, ensure we advance. | |
6fefdc4b RS |
1439 | (if (if isearch-forward (eobp) (bobp)) |
1440 | ;; If there's nowhere to advance to, fail (and wrap next time). | |
1441 | (progn | |
1442 | (setq isearch-success nil) | |
1443 | (ding)) | |
1444 | (forward-char (if isearch-forward 1 -1)) | |
1445 | (isearch-search)) | |
1446 | (isearch-search))) | |
1447 | ||
8e1cae6d JB |
1448 | (isearch-push-state) |
1449 | (isearch-update)) | |
1450 | ||
1451 | (defun isearch-repeat-forward () | |
1452 | "Repeat incremental search forwards." | |
1453 | (interactive) | |
1454 | (isearch-repeat 'forward)) | |
1455 | ||
1456 | (defun isearch-repeat-backward () | |
1457 | "Repeat incremental search backwards." | |
1458 | (interactive) | |
1459 | (isearch-repeat 'backward)) | |
1460 | ||
1461 | (defun isearch-toggle-regexp () | |
1462 | "Toggle regexp searching on or off." | |
1463 | ;; The status stack is left unchanged. | |
1464 | (interactive) | |
1465 | (setq isearch-regexp (not isearch-regexp)) | |
08200510 | 1466 | (if isearch-regexp (setq isearch-word nil)) |
d85519bb | 1467 | (setq isearch-success t isearch-adjusted t) |
8e1cae6d JB |
1468 | (isearch-update)) |
1469 | ||
70bc5268 JL |
1470 | (defun isearch-toggle-word () |
1471 | "Toggle word searching on or off." | |
7c2dc8bd | 1472 | ;; The status stack is left unchanged. |
70bc5268 JL |
1473 | (interactive) |
1474 | (setq isearch-word (not isearch-word)) | |
7c2dc8bd | 1475 | (if isearch-word (setq isearch-regexp nil)) |
70bc5268 JL |
1476 | (setq isearch-success t isearch-adjusted t) |
1477 | (isearch-update)) | |
1478 | ||
b9cb2387 JL |
1479 | (defun isearch-toggle-symbol () |
1480 | "Toggle symbol searching on or off." | |
1481 | (interactive) | |
1482 | (setq isearch-word (unless (eq isearch-word 'isearch-symbol-regexp) | |
1483 | 'isearch-symbol-regexp)) | |
826b3235 | 1484 | (if isearch-word (setq isearch-regexp nil)) |
b9cb2387 JL |
1485 | (setq isearch-success t isearch-adjusted t) |
1486 | (isearch-update)) | |
1487 | ||
63dd1c6f JL |
1488 | (defun isearch-toggle-lax-whitespace () |
1489 | "Toggle whitespace matching in searching on or off. | |
1490 | In ordinary search, toggles the value of the variable | |
1491 | `isearch-lax-whitespace'. In regexp search, toggles the | |
1492 | value of the variable `isearch-regexp-lax-whitespace'." | |
1493 | (interactive) | |
1494 | (if isearch-regexp | |
1495 | (setq isearch-regexp-lax-whitespace (not isearch-regexp-lax-whitespace)) | |
1496 | (setq isearch-lax-whitespace (not isearch-lax-whitespace))) | |
1497 | (let ((message-log-max nil)) | |
1498 | (message "%s%s [%s]" | |
1499 | (isearch-message-prefix nil isearch-nonincremental) | |
1500 | isearch-message | |
1501 | (if (if isearch-regexp | |
1502 | isearch-regexp-lax-whitespace | |
1503 | isearch-lax-whitespace) | |
1504 | "match spaces loosely" | |
1505 | "match spaces literally"))) | |
1506 | (setq isearch-success t isearch-adjusted t) | |
1507 | (sit-for 1) | |
1508 | (isearch-update)) | |
1509 | ||
4453091d | 1510 | (defun isearch-toggle-case-fold () |
01dea85f JL |
1511 | "Toggle case folding in searching on or off. |
1512 | Toggles the value of the variable `isearch-case-fold-search'." | |
4453091d RS |
1513 | (interactive) |
1514 | (setq isearch-case-fold-search | |
1515 | (if isearch-case-fold-search nil 'yes)) | |
a56687f1 KH |
1516 | (let ((message-log-max nil)) |
1517 | (message "%s%s [case %ssensitive]" | |
7c2dc8bd | 1518 | (isearch-message-prefix nil isearch-nonincremental) |
a56687f1 KH |
1519 | isearch-message |
1520 | (if isearch-case-fold-search "in" ""))) | |
d85519bb | 1521 | (setq isearch-success t isearch-adjusted t) |
4453091d RS |
1522 | (sit-for 1) |
1523 | (isearch-update)) | |
1524 | ||
01dea85f JL |
1525 | (defun isearch-toggle-invisible () |
1526 | "Toggle searching in invisible text on or off. | |
1527 | Toggles the variable `isearch-invisible' between values | |
1528 | nil and a non-nil value of the option `search-invisible' | |
1529 | \(or `open' if `search-invisible' is nil)." | |
1530 | (interactive) | |
1531 | (setq isearch-invisible | |
1532 | (if isearch-invisible nil (or search-invisible 'open))) | |
1533 | (let ((message-log-max nil)) | |
1534 | (message "%s%s [match %svisible text]" | |
1535 | (isearch-message-prefix nil isearch-nonincremental) | |
1536 | isearch-message | |
1537 | (if isearch-invisible "in" ""))) | |
1538 | (setq isearch-success t isearch-adjusted t) | |
1539 | (sit-for 1) | |
1540 | (isearch-update)) | |
1541 | ||
a0a79cde JL |
1542 | \f |
1543 | ;; Word search | |
1544 | ||
1545 | (defun word-search-regexp (string &optional lax) | |
1546 | "Return a regexp which matches words, ignoring punctuation. | |
1547 | Given STRING, a string of words separated by word delimiters, | |
1548 | compute a regexp that matches those exact words separated by | |
a22289f7 JL |
1549 | arbitrary punctuation. If the string begins or ends in whitespace, |
1550 | the beginning or the end of the string matches arbitrary whitespace. | |
1551 | Otherwise if LAX is non-nil, the beginning or the end of the string | |
1552 | need not match a word boundary. | |
a0a79cde JL |
1553 | |
1554 | Used in `word-search-forward', `word-search-backward', | |
1555 | `word-search-forward-lax', `word-search-backward-lax'." | |
a22289f7 JL |
1556 | (cond |
1557 | ((equal string "") "") | |
1558 | ((string-match-p "\\`\\W+\\'" string) "\\W+") | |
1559 | (t (concat | |
1560 | (if (string-match-p "\\`\\W" string) "\\W+" | |
1561 | (unless lax "\\<")) | |
1562 | (mapconcat 'regexp-quote (split-string string "\\W+" t) "\\W+") | |
1563 | (if (string-match-p "\\W\\'" string) "\\W+" | |
1564 | (unless lax "\\>")))))) | |
a0a79cde JL |
1565 | |
1566 | (defun word-search-backward (string &optional bound noerror count) | |
1567 | "Search backward from point for STRING, ignoring differences in punctuation. | |
1568 | Set point to the beginning of the occurrence found, and return point. | |
1569 | An optional second argument bounds the search; it is a buffer position. | |
1570 | The match found must not extend before that position. | |
1571 | Optional third argument, if t, means if fail just return nil (no error). | |
1572 | If not nil and not t, move to limit of search and return nil. | |
1573 | Optional fourth argument is repeat count--search for successive occurrences. | |
1574 | ||
1575 | Relies on the function `word-search-regexp' to convert a sequence | |
1576 | of words in STRING to a regexp used to search words without regard | |
1577 | to punctuation." | |
1578 | (interactive "sWord search backward: ") | |
1579 | (re-search-backward (word-search-regexp string nil) bound noerror count)) | |
1580 | ||
1581 | (defun word-search-forward (string &optional bound noerror count) | |
1582 | "Search forward from point for STRING, ignoring differences in punctuation. | |
1583 | Set point to the end of the occurrence found, and return point. | |
1584 | An optional second argument bounds the search; it is a buffer position. | |
1585 | The match found must not extend after that position. | |
1586 | Optional third argument, if t, means if fail just return nil (no error). | |
1587 | If not nil and not t, move to limit of search and return nil. | |
1588 | Optional fourth argument is repeat count--search for successive occurrences. | |
1589 | ||
1590 | Relies on the function `word-search-regexp' to convert a sequence | |
1591 | of words in STRING to a regexp used to search words without regard | |
1592 | to punctuation." | |
1593 | (interactive "sWord search: ") | |
1594 | (re-search-forward (word-search-regexp string nil) bound noerror count)) | |
1595 | ||
1596 | (defun word-search-backward-lax (string &optional bound noerror count) | |
1597 | "Search backward from point for STRING, ignoring differences in punctuation. | |
1598 | Set point to the beginning of the occurrence found, and return point. | |
1599 | ||
1600 | Unlike `word-search-backward', the end of STRING need not match a word | |
1601 | boundary, unless STRING ends in whitespace. | |
1602 | ||
1603 | An optional second argument bounds the search; it is a buffer position. | |
1604 | The match found must not extend before that position. | |
1605 | Optional third argument, if t, means if fail just return nil (no error). | |
1606 | If not nil and not t, move to limit of search and return nil. | |
1607 | Optional fourth argument is repeat count--search for successive occurrences. | |
1608 | ||
1609 | Relies on the function `word-search-regexp' to convert a sequence | |
1610 | of words in STRING to a regexp used to search words without regard | |
1611 | to punctuation." | |
1612 | (interactive "sWord search backward: ") | |
1613 | (re-search-backward (word-search-regexp string t) bound noerror count)) | |
1614 | ||
1615 | (defun word-search-forward-lax (string &optional bound noerror count) | |
1616 | "Search forward from point for STRING, ignoring differences in punctuation. | |
1617 | Set point to the end of the occurrence found, and return point. | |
1618 | ||
1619 | Unlike `word-search-forward', the end of STRING need not match a word | |
1620 | boundary, unless STRING ends in whitespace. | |
1621 | ||
1622 | An optional second argument bounds the search; it is a buffer position. | |
1623 | The match found must not extend after that position. | |
1624 | Optional third argument, if t, means if fail just return nil (no error). | |
1625 | If not nil and not t, move to limit of search and return nil. | |
1626 | Optional fourth argument is repeat count--search for successive occurrences. | |
1627 | ||
1628 | Relies on the function `word-search-regexp' to convert a sequence | |
1629 | of words in STRING to a regexp used to search words without regard | |
1630 | to punctuation." | |
1631 | (interactive "sWord search: ") | |
1632 | (re-search-forward (word-search-regexp string t) bound noerror count)) | |
1633 | ||
b9cb2387 JL |
1634 | ;; Symbol search |
1635 | ||
1636 | (defun isearch-symbol-regexp (string &optional lax) | |
1637 | "Return a regexp which matches STRING as a symbol. | |
1638 | Creates a regexp where STRING is surrounded by symbol delimiters \\_< and \\_>. | |
a22289f7 JL |
1639 | If there are more than one symbol, then compute a regexp that matches |
1640 | those exact symbols separated by non-symbol characters. If the string | |
1641 | begins or ends in whitespace, the beginning or the end of the string | |
1642 | matches arbitrary non-symbol whitespace. Otherwise if LAX is non-nil, | |
1643 | the beginning or the end of the string need not match a symbol boundary." | |
1644 | (let ((not-word-symbol-re | |
1645 | ;; This regexp matches all syntaxes except word and symbol syntax. | |
1646 | ;; FIXME: Replace it with something shorter if possible (bug#14602). | |
1647 | "\\(?:\\s-\\|\\s.\\|\\s(\\|\\s)\\|\\s\"\\|\\s\\\\|\\s/\\|\\s$\\|\\s'\\|\\s<\\|\\s>\\|\\s@\\|\\s!\\|\\s|\\)+")) | |
1648 | (cond | |
1649 | ((equal string "") "") | |
1650 | ((string-match-p (format "\\`%s\\'" not-word-symbol-re) string) not-word-symbol-re) | |
1651 | (t (concat | |
1652 | (if (string-match-p (format "\\`%s" not-word-symbol-re) string) not-word-symbol-re | |
1653 | (unless lax "\\_<")) | |
1654 | (mapconcat 'regexp-quote (split-string string not-word-symbol-re t) not-word-symbol-re) | |
1655 | (if (string-match-p (format "%s\\'" not-word-symbol-re) string) not-word-symbol-re | |
1656 | (unless lax "\\_>"))))))) | |
b9cb2387 JL |
1657 | |
1658 | (put 'isearch-symbol-regexp 'isearch-message-prefix "symbol ") | |
1659 | ||
63dd1c6f JL |
1660 | ;; Search with lax whitespace |
1661 | ||
1662 | (defun search-forward-lax-whitespace (string &optional bound noerror count) | |
1663 | "Search forward for STRING, matching a sequence of whitespace chars." | |
1664 | (let ((search-spaces-regexp search-whitespace-regexp)) | |
1665 | (re-search-forward (regexp-quote string) bound noerror count))) | |
1666 | ||
1667 | (defun search-backward-lax-whitespace (string &optional bound noerror count) | |
1668 | "Search backward for STRING, matching a sequence of whitespace chars." | |
1669 | (let ((search-spaces-regexp search-whitespace-regexp)) | |
1670 | (re-search-backward (regexp-quote string) bound noerror count))) | |
1671 | ||
1672 | (defun re-search-forward-lax-whitespace (regexp &optional bound noerror count) | |
1673 | "Search forward for REGEXP, matching a sequence of whitespace chars." | |
1674 | (let ((search-spaces-regexp search-whitespace-regexp)) | |
1675 | (re-search-forward regexp bound noerror count))) | |
1676 | ||
1677 | (defun re-search-backward-lax-whitespace (regexp &optional bound noerror count) | |
1678 | "Search backward for REGEXP, matching a sequence of whitespace chars." | |
1679 | (let ((search-spaces-regexp search-whitespace-regexp)) | |
1680 | (re-search-backward regexp bound noerror count))) | |
1681 | ||
a0a79cde | 1682 | \f |
3ee4cd64 | 1683 | (defun isearch-query-replace (&optional arg regexp-flag) |
9d14752f | 1684 | "Start `query-replace' with string to replace from last search string. |
3ee4cd64 JL |
1685 | The ARG (prefix arg if interactive), if non-nil, means replace |
1686 | only matches surrounded by word boundaries. A negative prefix | |
1687 | arg means replace backward. Note that using the prefix arg | |
bc5c8c5a JL |
1688 | is possible only when `isearch-allow-scroll' is non-nil or |
1689 | `isearch-allow-prefix' is non-nil, and it doesn't always provide the | |
1690 | correct matches for `query-replace', so the preferred way to run word | |
1691 | replacements from Isearch is `M-s w ... M-%'." | |
9d14752f JL |
1692 | (interactive |
1693 | (list current-prefix-arg)) | |
81e898ea | 1694 | (barf-if-buffer-read-only) |
d85519bb | 1695 | (if regexp-flag (setq isearch-regexp t)) |
6e3057bb JL |
1696 | (let ((case-fold-search isearch-case-fold-search) |
1697 | ;; set `search-upper-case' to nil to not call | |
1698 | ;; `isearch-no-upper-case-p' in `perform-replace' | |
8d32ed64 | 1699 | (search-upper-case nil) |
01dea85f | 1700 | (search-invisible isearch-invisible) |
826b3235 | 1701 | (replace-lax-whitespace |
3231d532 JL |
1702 | isearch-lax-whitespace) |
1703 | (replace-regexp-lax-whitespace | |
1704 | isearch-regexp-lax-whitespace) | |
3ee4cd64 JL |
1705 | (delimited (and arg (not (eq arg '-)))) |
1706 | (backward (and arg (eq arg '-))) | |
8d32ed64 JL |
1707 | ;; Set `isearch-recursive-edit' to nil to prevent calling |
1708 | ;; `exit-recursive-edit' in `isearch-done' that terminates | |
1709 | ;; the execution of this command when it is non-nil. | |
1710 | ;; We call `exit-recursive-edit' explicitly at the end below. | |
1711 | (isearch-recursive-edit nil)) | |
1712 | (isearch-done nil t) | |
74820eb5 | 1713 | (isearch-clean-overlays) |
e7e4ea21 | 1714 | (if (and isearch-other-end |
3ee4cd64 JL |
1715 | (if backward |
1716 | (> isearch-other-end (point)) | |
1717 | (< isearch-other-end (point))) | |
d85519bb | 1718 | (not (and transient-mark-mode mark-active |
3ee4cd64 JL |
1719 | (if backward |
1720 | (> (mark) (point)) | |
1721 | (< (mark) (point)))))) | |
d85519bb JL |
1722 | (goto-char isearch-other-end)) |
1723 | (set query-replace-from-history-variable | |
1724 | (cons isearch-string | |
1725 | (symbol-value query-replace-from-history-variable))) | |
81e898ea SM |
1726 | (perform-replace |
1727 | isearch-string | |
d85519bb JL |
1728 | (query-replace-read-to |
1729 | isearch-string | |
9d14752f | 1730 | (concat "Query replace" |
bc5c8c5a JL |
1731 | (if (or delimited isearch-word) |
1732 | (let* ((symbol (or delimited isearch-word)) | |
1733 | (string (and symbol (symbolp symbol) | |
1734 | (get symbol 'isearch-message-prefix)))) | |
1735 | (if (stringp string) | |
1736 | ;; Move space from the end to the beginning. | |
1737 | (replace-regexp-in-string "\\(.*\\) \\'" " \\1" string) | |
1738 | " word")) | |
1739 | "") | |
9d14752f | 1740 | (if isearch-regexp " regexp" "") |
3ee4cd64 | 1741 | (if backward " backward" "") |
9d14752f | 1742 | (if (and transient-mark-mode mark-active) " in region" "")) |
d85519bb | 1743 | isearch-regexp) |
9d14752f | 1744 | t isearch-regexp (or delimited isearch-word) nil nil |
d85519bb | 1745 | (if (and transient-mark-mode mark-active) (region-beginning)) |
3ee4cd64 JL |
1746 | (if (and transient-mark-mode mark-active) (region-end)) |
1747 | backward)) | |
8d32ed64 | 1748 | (and isearch-recursive-edit (exit-recursive-edit))) |
74820eb5 | 1749 | |
3ee4cd64 | 1750 | (defun isearch-query-replace-regexp (&optional arg) |
9d14752f JL |
1751 | "Start `query-replace-regexp' with string to replace from last search string. |
1752 | See `isearch-query-replace' for more information." | |
1753 | (interactive | |
1754 | (list current-prefix-arg)) | |
3ee4cd64 | 1755 | (isearch-query-replace arg t)) |
74820eb5 | 1756 | |
6e3057bb | 1757 | (defun isearch-occur (regexp &optional nlines) |
0bd1e074 JL |
1758 | "Run `occur' using the last search string as the regexp. |
1759 | Interactively, REGEXP is constructed using the search string from the | |
1760 | last search command. NLINES has the same meaning as in `occur'. | |
1761 | ||
1762 | If the last search command was a word search, REGEXP is computed from | |
1763 | the search words, ignoring punctuation. If the last search | |
1764 | command was a regular expression search, REGEXP is the regular | |
1765 | expression used in that search. If the last search command searched | |
1766 | for a literal string, REGEXP is constructed by quoting all the special | |
1767 | characters in that string." | |
6e3057bb | 1768 | (interactive |
0bd1e074 JL |
1769 | (let* ((perform-collect (consp current-prefix-arg)) |
1770 | (regexp (cond | |
d5e61c1c JL |
1771 | ((functionp isearch-word) |
1772 | (funcall isearch-word isearch-string)) | |
0bd1e074 JL |
1773 | (isearch-word (word-search-regexp isearch-string)) |
1774 | (isearch-regexp isearch-string) | |
1775 | (t (regexp-quote isearch-string))))) | |
1776 | (list regexp | |
1777 | (if perform-collect | |
1778 | ;; Perform collect operation | |
1779 | (if (zerop (regexp-opt-depth regexp)) | |
1780 | ;; No subexpression so collect the entire match. | |
1781 | "\\&" | |
1782 | ;; Get the regexp for collection pattern. | |
bc5c8c5a JL |
1783 | (let ((default (car occur-collect-regexp-history)) |
1784 | regexp-collect) | |
1785 | (with-isearch-suspended | |
1786 | (setq regexp-collect | |
1787 | (read-regexp | |
1788 | (format "Regexp to collect (default %s): " default) | |
1789 | default 'occur-collect-regexp-history))) | |
1790 | regexp-collect)) | |
0bd1e074 JL |
1791 | ;; Otherwise normal occur takes numerical prefix argument. |
1792 | (when current-prefix-arg | |
1793 | (prefix-numeric-value current-prefix-arg)))))) | |
6e3057bb | 1794 | (let ((case-fold-search isearch-case-fold-search) |
3e8cd5ce JL |
1795 | ;; Set `search-upper-case' to nil to not call |
1796 | ;; `isearch-no-upper-case-p' in `occur-1'. | |
1797 | (search-upper-case nil) | |
63dd1c6f JL |
1798 | (search-spaces-regexp |
1799 | (if (if isearch-regexp | |
1800 | isearch-regexp-lax-whitespace | |
1801 | isearch-lax-whitespace) | |
1802 | search-whitespace-regexp))) | |
6e3057bb JL |
1803 | (occur regexp nlines))) |
1804 | ||
11c9f489 JL |
1805 | (declare-function hi-lock-read-face-name "hi-lock" ()) |
1806 | ||
8938c0bc | 1807 | (defun isearch-highlight-regexp () |
11c9f489 | 1808 | "Run `highlight-regexp' with regexp from the current search string. |
8938c0bc JL |
1809 | It exits Isearch mode and calls `hi-lock-face-buffer' with its regexp |
1810 | argument from the last search regexp or a quoted search string, | |
1811 | and reads its face argument using `hi-lock-read-face-name'." | |
1812 | (interactive) | |
8d32ed64 JL |
1813 | (let ( |
1814 | ;; Set `isearch-recursive-edit' to nil to prevent calling | |
1815 | ;; `exit-recursive-edit' in `isearch-done' that terminates | |
1816 | ;; the execution of this command when it is non-nil. | |
1817 | ;; We call `exit-recursive-edit' explicitly at the end below. | |
1818 | (isearch-recursive-edit nil)) | |
1819 | (isearch-done nil t) | |
1820 | (isearch-clean-overlays)) | |
8938c0bc | 1821 | (require 'hi-lock nil t) |
e5e4a942 JL |
1822 | (let ((regexp (cond ((functionp isearch-word) |
1823 | (funcall isearch-word isearch-string)) | |
1824 | (isearch-word (word-search-regexp isearch-string)) | |
1825 | (isearch-regexp isearch-string) | |
36bdf1ff CY |
1826 | ((if (and (eq isearch-case-fold-search t) |
1827 | search-upper-case) | |
1828 | (isearch-no-upper-case-p | |
1829 | isearch-string isearch-regexp) | |
1830 | isearch-case-fold-search) | |
1831 | ;; Turn isearch-string into a case-insensitive | |
1832 | ;; regexp. | |
9c7a6b15 CY |
1833 | (mapconcat |
1834 | (lambda (c) | |
1835 | (let ((s (string c))) | |
1836 | (if (string-match "[[:alpha:]]" s) | |
1837 | (format "[%s%s]" (upcase s) (downcase s)) | |
1838 | (regexp-quote s)))) | |
1839 | isearch-string "")) | |
36bdf1ff | 1840 | (t (regexp-quote isearch-string))))) |
e5e4a942 | 1841 | (hi-lock-face-buffer regexp (hi-lock-read-face-name))) |
8d32ed64 | 1842 | (and isearch-recursive-edit (exit-recursive-edit))) |
11c9f489 | 1843 | |
74820eb5 | 1844 | \f |
8e1cae6d | 1845 | (defun isearch-delete-char () |
d6b8a1c0 | 1846 | "Discard last input item and move point back. |
8370def5 JL |
1847 | Last input means the last character or the last isearch command |
1848 | that added or deleted characters from the search string, | |
1849 | moved point, toggled regexp mode or case-sensitivity, etc. | |
8e1cae6d JB |
1850 | If no previous match was done, just beep." |
1851 | (interactive) | |
1852 | (if (null (cdr isearch-cmds)) | |
1853 | (ding) | |
1854 | (isearch-pop-state)) | |
1855 | (isearch-update)) | |
1856 | ||
74820eb5 JL |
1857 | (defun isearch-del-char (&optional arg) |
1858 | "Delete character from end of search string and search again. | |
8370def5 JL |
1859 | Unlike `isearch-delete-char', it only deletes the last character, |
1860 | but doesn't cancel the effect of other isearch command. | |
74820eb5 JL |
1861 | If search string is empty, just beep." |
1862 | (interactive "p") | |
1863 | (if (= 0 (length isearch-string)) | |
35904fd3 | 1864 | (ding) |
cb89acab JL |
1865 | (setq isearch-string (substring isearch-string 0 |
1866 | (- (min (or arg 1) | |
1867 | (length isearch-string)))) | |
35904fd3 | 1868 | isearch-message (mapconcat 'isearch-text-char-description |
02b99a17 JL |
1869 | isearch-string ""))) |
1870 | ;; Use the isearch-other-end as new starting point to be able | |
1871 | ;; to find the remaining part of the search string again. | |
cb89acab JL |
1872 | ;; This is like what `isearch-search-and-update' does, |
1873 | ;; but currently it doesn't support deletion of characters | |
1874 | ;; for the case where unsuccessful search may become successful | |
1875 | ;; by deletion of characters. | |
02b99a17 JL |
1876 | (if isearch-other-end (goto-char isearch-other-end)) |
1877 | (isearch-search) | |
1878 | (isearch-push-state) | |
1879 | (isearch-update)) | |
8e1cae6d | 1880 | |
9cf081fa KH |
1881 | (defun isearch-yank-string (string) |
1882 | "Pull STRING into search string." | |
1883 | ;; Downcase the string if not supposed to case-fold yanked strings. | |
1884 | (if (and isearch-case-fold-search | |
1885 | (eq 'not-yanks search-upper-case)) | |
1886 | (setq string (downcase string))) | |
1887 | (if isearch-regexp (setq string (regexp-quote string))) | |
5d944a8f JL |
1888 | ;; Don't move cursor in reverse search. |
1889 | (setq isearch-yank-flag t) | |
1890 | (isearch-process-search-string | |
1891 | string (mapconcat 'isearch-text-char-description string ""))) | |
8e1cae6d | 1892 | |
30d47262 RS |
1893 | (defun isearch-yank-kill () |
1894 | "Pull string from kill ring into search string." | |
1895 | (interactive) | |
9cf081fa KH |
1896 | (isearch-yank-string (current-kill 0))) |
1897 | ||
25666126 LL |
1898 | (defun isearch-yank-pop () |
1899 | "Replace just-yanked search string with previously killed string." | |
1900 | (interactive) | |
1901 | (if (not (memq last-command '(isearch-yank-kill isearch-yank-pop))) | |
1902 | ;; Fall back on `isearch-yank-kill' for the benefits of people | |
1903 | ;; who are used to the old behavior of `M-y' in isearch mode. In | |
1904 | ;; future, this fallback may be changed if we ever change | |
1905 | ;; `yank-pop' to do something like the kill-ring-browser. | |
1906 | (isearch-yank-kill) | |
1907 | (isearch-pop-state) | |
1908 | (isearch-yank-string (current-kill 1)))) | |
1909 | ||
9cf081fa | 1910 | (defun isearch-yank-x-selection () |
117132a6 | 1911 | "Pull current X selection into search string." |
9cf081fa | 1912 | (interactive) |
c935221f SM |
1913 | (isearch-yank-string (x-get-selection)) |
1914 | ;; If `x-get-selection' returned the text from the active region, | |
1915 | ;; then it "used" the mark which we should hence deactivate. | |
1916 | (when select-active-regions (deactivate-mark))) | |
8e1cae6d | 1917 | |
e4af1426 | 1918 | |
191f025a | 1919 | (defun isearch-mouse-2 (click) |
e4af1426 | 1920 | "Handle mouse-2 in Isearch mode. |
117132a6 | 1921 | For a click in the echo area, invoke `isearch-yank-x-selection'. |
f3b5dd74 DK |
1922 | Otherwise invoke whatever the calling mouse-2 command sequence |
1923 | is bound to outside of Isearch." | |
191f025a | 1924 | (interactive "e") |
e4af1426 GM |
1925 | (let* ((w (posn-window (event-start click))) |
1926 | (overriding-terminal-local-map nil) | |
f3b5dd74 | 1927 | (binding (key-binding (this-command-keys-vector) t))) |
117132a6 DL |
1928 | (if (and (window-minibuffer-p w) |
1929 | (not (minibuffer-window-active-p w))) ; in echo area | |
1930 | (isearch-yank-x-selection) | |
cd59ea72 | 1931 | (when (functionp binding) |
191f025a | 1932 | (call-interactively binding))))) |
e4af1426 | 1933 | |
29e53a0a KF |
1934 | (defun isearch-yank-internal (jumpform) |
1935 | "Pull the text from point to the point reached by JUMPFORM. | |
4b65254d JB |
1936 | JUMPFORM is a lambda expression that takes no arguments and returns |
1937 | a buffer position, possibly having moved point to that position. | |
1938 | For example, it might move point forward by a word and return point, | |
1939 | or it might return the position of the end of the line." | |
9cf081fa KH |
1940 | (isearch-yank-string |
1941 | (save-excursion | |
1942 | (and (not isearch-forward) isearch-other-end | |
1943 | (goto-char isearch-other-end)) | |
29e53a0a KF |
1944 | (buffer-substring-no-properties (point) (funcall jumpform))))) |
1945 | ||
74820eb5 JL |
1946 | (defun isearch-yank-char-in-minibuffer (&optional arg) |
1947 | "Pull next character from buffer into end of search string in minibuffer." | |
1948 | (interactive "p") | |
1949 | (if (eobp) | |
1950 | (insert | |
00c42405 | 1951 | (with-current-buffer (cadr (buffer-list)) |
74820eb5 JL |
1952 | (buffer-substring-no-properties |
1953 | (point) (progn (forward-char arg) (point))))) | |
1954 | (forward-char arg))) | |
1955 | ||
1956 | (defun isearch-yank-char (&optional arg) | |
de7ce2d1 CY |
1957 | "Pull next character from buffer into search string. |
1958 | If optional ARG is non-nil, pull in the next ARG characters." | |
74820eb5 JL |
1959 | (interactive "p") |
1960 | (isearch-yank-internal (lambda () (forward-char arg) (point)))) | |
29e53a0a | 1961 | |
1ddb2ea0 | 1962 | (declare-function subword-forward "subword" (&optional arg)) |
868bf43a | 1963 | (defun isearch-yank-word-or-char () |
1ddb2ea0 MY |
1964 | "Pull next character, subword or word from buffer into search string. |
1965 | Subword is used when `subword-mode' is activated. " | |
868bf43a | 1966 | (interactive) |
21d90805 | 1967 | (isearch-yank-internal |
b48ca14f | 1968 | (lambda () |
21d90805 KF |
1969 | (if (or (= (char-syntax (or (char-after) 0)) ?w) |
1970 | (= (char-syntax (or (char-after (1+ (point))) 0)) ?w)) | |
1ddb2ea0 MY |
1971 | (if (and (boundp 'subword-mode) subword-mode) |
1972 | (subword-forward 1) | |
1973 | (forward-word 1)) | |
21d90805 | 1974 | (forward-char 1)) (point)))) |
868bf43a | 1975 | |
6e8cfc81 | 1976 | (defun isearch-yank-word (&optional arg) |
de7ce2d1 CY |
1977 | "Pull next word from buffer into search string. |
1978 | If optional ARG is non-nil, pull in the next ARG words." | |
6e8cfc81 JL |
1979 | (interactive "p") |
1980 | (isearch-yank-internal (lambda () (forward-word arg) (point)))) | |
8e1cae6d | 1981 | |
6e8cfc81 | 1982 | (defun isearch-yank-line (&optional arg) |
de7ce2d1 CY |
1983 | "Pull rest of line from buffer into search string. |
1984 | If optional ARG is non-nil, yank the next ARG lines." | |
6e8cfc81 | 1985 | (interactive "p") |
a1883913 | 1986 | (isearch-yank-internal |
933f8467 | 1987 | (lambda () (let ((inhibit-field-text-motion t)) |
6e8cfc81 | 1988 | (line-end-position (if (eolp) (1+ arg) arg)))))) |
8e1cae6d | 1989 | |
6e8cfc81 | 1990 | (defun isearch-char-by-name (&optional count) |
da547b32 | 1991 | "Read a character by its Unicode name and add it to the search string. |
6e8cfc81 JL |
1992 | Completion is available like in `read-char-by-name' used by `insert-char'. |
1993 | With argument, add COUNT copies of the character." | |
1994 | (interactive "p") | |
279f9b06 | 1995 | (with-isearch-suspended |
da547b32 | 1996 | (let ((char (read-char-by-name "Add character to search (Unicode name or hex): "))) |
279f9b06 | 1997 | (when char |
6e8cfc81 JL |
1998 | (let ((string (if (and (integerp count) (> count 1)) |
1999 | (make-string count char) | |
2000 | (char-to-string char)))) | |
2001 | (setq isearch-new-string (concat isearch-string string) | |
2002 | isearch-new-message (concat isearch-message | |
2003 | (mapconcat 'isearch-text-char-description | |
2004 | string "")))))))) | |
279f9b06 | 2005 | |
8e1cae6d JB |
2006 | (defun isearch-search-and-update () |
2007 | ;; Do the search and update the display. | |
191f025a | 2008 | (when (or isearch-success |
35904fd3 JL |
2009 | ;; Unsuccessful regexp search may become successful by |
2010 | ;; addition of characters which make isearch-string valid | |
cd59ea72 SM |
2011 | isearch-regexp |
2012 | ;; If the string was found but was completely invisible, | |
2013 | ;; it might now be partly visible, so try again. | |
2014 | (prog1 isearch-hidden (setq isearch-hidden nil))) | |
8e1cae6d JB |
2015 | ;; In reverse search, adding stuff at |
2016 | ;; the end may cause zero or many more chars to be | |
2017 | ;; matched, in the string following point. | |
2018 | ;; Allow all those possibilities without moving point as | |
2019 | ;; long as the match does not extend past search origin. | |
2020 | (if (and (not isearch-forward) (not isearch-adjusted) | |
2021 | (condition-case () | |
99ae9e9f | 2022 | (let ((case-fold-search isearch-case-fold-search)) |
ec0a2f45 KH |
2023 | (if (and (eq case-fold-search t) search-upper-case) |
2024 | (setq case-fold-search | |
2025 | (isearch-no-upper-case-p isearch-string isearch-regexp))) | |
02b16839 | 2026 | (looking-at (cond |
d5e61c1c JL |
2027 | ((functionp isearch-word) |
2028 | (funcall isearch-word isearch-string t)) | |
02b16839 JL |
2029 | (isearch-word (word-search-regexp isearch-string t)) |
2030 | (isearch-regexp isearch-string) | |
2031 | (t (regexp-quote isearch-string))))) | |
8e1cae6d | 2032 | (error nil)) |
bd6a8414 | 2033 | (or isearch-yank-flag |
191f025a | 2034 | (<= (match-end 0) |
bd6a8414 | 2035 | (min isearch-opoint isearch-barrier)))) |
d64b1d96 | 2036 | (progn |
191f025a | 2037 | (setq isearch-success t |
ba653a53 | 2038 | isearch-error nil |
d64b1d96 RS |
2039 | isearch-other-end (match-end 0)) |
2040 | (if (and (eq isearch-case-fold-search t) search-upper-case) | |
2041 | (setq isearch-case-fold-search | |
2042 | (isearch-no-upper-case-p isearch-string isearch-regexp)))) | |
8e1cae6d JB |
2043 | ;; Not regexp, not reverse, or no match at point. |
2044 | (if (and isearch-other-end (not isearch-adjusted)) | |
2045 | (goto-char (if isearch-forward isearch-other-end | |
191f025a SM |
2046 | (min isearch-opoint |
2047 | isearch-barrier | |
8e1cae6d JB |
2048 | (1+ isearch-other-end))))) |
2049 | (isearch-search) | |
2050 | )) | |
2051 | (isearch-push-state) | |
2052 | (if isearch-op-fun (funcall isearch-op-fun)) | |
2053 | (isearch-update)) | |
2054 | ||
2055 | ||
08e3de69 | 2056 | ;; *, ?, }, and | chars can make a regexp more liberal. |
08200510 | 2057 | ;; They can make a regexp match sooner or make it succeed instead of failing. |
8e1cae6d JB |
2058 | ;; So go back to place last successful search started |
2059 | ;; or to the last ^S/^R (barrier), whichever is nearer. | |
08200510 | 2060 | ;; + needs no special handling because the string must match at least once. |
8e1cae6d | 2061 | |
08e3de69 EZ |
2062 | (defun isearch-backslash (str) |
2063 | "Return t if STR ends in an odd number of backslashes." | |
2064 | (= (mod (- (length str) (string-match "\\\\*\\'" str)) 2) 1)) | |
2065 | ||
2066 | (defun isearch-fallback (want-backslash &optional allow-invalid to-barrier) | |
2067 | "Return point to previous successful match to allow regexp liberalization. | |
2068 | \\<isearch-mode-map> | |
4b65254d | 2069 | Respects \\[isearch-repeat-forward] and \\[isearch-repeat-backward] by \ |
08e3de69 EZ |
2070 | stopping at `isearch-barrier' as needed. |
2071 | ||
6f2df0f4 JL |
2072 | Do nothing if a backslash is escaping the liberalizing character. |
2073 | If WANT-BACKSLASH is non-nil, invert this behavior (for \\} and \\|). | |
08e3de69 | 2074 | |
6f2df0f4 JL |
2075 | Do nothing if regexp has recently been invalid unless optional |
2076 | ALLOW-INVALID non-nil. | |
08e3de69 | 2077 | |
6f2df0f4 JL |
2078 | If optional TO-BARRIER non-nil, ignore previous matches and go exactly |
2079 | to the barrier." | |
08e3de69 EZ |
2080 | ;; (eq (not a) (not b)) makes all non-nil values equivalent |
2081 | (when (and isearch-regexp (eq (not (isearch-backslash isearch-string)) | |
2082 | (not want-backslash)) | |
2083 | ;; We have to check 2 stack frames because the last might be | |
2084 | ;; invalid just because of a backslash. | |
ba653a53 | 2085 | (or (not isearch-error) |
7c2dc8bd | 2086 | (not (isearch--state-error (cadr isearch-cmds))) |
08e3de69 EZ |
2087 | allow-invalid)) |
2088 | (if to-barrier | |
2089 | (progn (goto-char isearch-barrier) | |
2090 | (setq isearch-adjusted t)) | |
2091 | (let* ((stack isearch-cmds) | |
2092 | (previous (cdr stack)) ; lookbelow in the stack | |
2093 | (frame (car stack))) | |
2094 | ;; Walk down the stack looking for a valid regexp (as of course only | |
2095 | ;; they can be the previous successful match); this conveniently | |
2096 | ;; removes all bracket-sets and groups that might be in the way, as | |
2097 | ;; well as partial \{\} constructs that the code below leaves behind. | |
2098 | ;; Also skip over postfix operators -- though horrid, | |
9b9a4122 | 2099 | ;; 'ab?\{5,6\}+\{1,2\}*' is perfectly valid. |
08e3de69 | 2100 | (while (and previous |
7c2dc8bd SM |
2101 | (or (isearch--state-error frame) |
2102 | (let* ((string (isearch--state-string frame)) | |
08e3de69 EZ |
2103 | (lchar (aref string (1- (length string))))) |
2104 | ;; The operators aren't always operators; check | |
2105 | ;; backslashes. This doesn't handle the case of | |
2106 | ;; operators at the beginning of the regexp not | |
2107 | ;; being special, but then we should fall back to | |
2108 | ;; the barrier anyway because it's all optional. | |
2109 | (if (isearch-backslash | |
7c2dc8bd | 2110 | (isearch--state-string (car previous))) |
08e3de69 EZ |
2111 | (eq lchar ?\}) |
2112 | (memq lchar '(?* ?? ?+)))))) | |
2113 | (setq stack previous previous (cdr previous) frame (car stack))) | |
2114 | (when stack | |
2115 | ;; `stack' now refers the most recent valid regexp that is not at | |
2116 | ;; all optional in its last term. Now dig one level deeper and find | |
2117 | ;; what matched before that. | |
5a1f9fcf JL |
2118 | (let ((last-other-end |
2119 | (or (and (car previous) | |
7c2dc8bd | 2120 | (isearch--state-other-end (car previous))) |
5a1f9fcf | 2121 | isearch-barrier))) |
08e3de69 EZ |
2122 | (goto-char (if isearch-forward |
2123 | (max last-other-end isearch-barrier) | |
2124 | (min last-other-end isearch-barrier))) | |
6f2df0f4 | 2125 | (setq isearch-adjusted t))))))) |
8e1cae6d | 2126 | |
6b61353c KH |
2127 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2128 | ;; scrolling within Isearch mode. Alan Mackenzie (acm@muc.de), 2003/2/24 | |
2129 | ;; | |
2130 | ;; The idea here is that certain vertical scrolling commands (like C-l | |
2131 | ;; `recenter') should be usable WITHIN Isearch mode. For a command to be | |
2132 | ;; suitable, it must NOT alter the buffer, swap to another buffer or frame, | |
2133 | ;; tamper with isearch's state, or move point. It is unacceptable for the | |
2134 | ;; search string to be scrolled out of the current window. If a command | |
2135 | ;; attempts this, we scroll the text back again. | |
2136 | ;; | |
2137 | ;; We implement this feature with a property called `isearch-scroll'. | |
ad40eec5 JL |
2138 | ;; If a command's symbol has the value t for this property or for the |
2139 | ;; `scroll-command' property, it is a scrolling command. The feature | |
2140 | ;; needs to be enabled by setting the customizable variable | |
2141 | ;; `isearch-allow-scroll' to a non-nil value. | |
6b61353c KH |
2142 | ;; |
2143 | ;; The universal argument commands (e.g. C-u) in simple.el are marked | |
2144 | ;; as scrolling commands, and isearch.el has been amended to allow | |
2145 | ;; prefix arguments to be passed through to scrolling commands. Thus | |
2146 | ;; M-0 C-l will scroll point to the top of the window. | |
2147 | ;; | |
2148 | ;; Horizontal scrolling commands are currently not catered for. | |
2149 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
2150 | ||
2151 | ;; Set the isearch-scroll property on some standard functions: | |
2152 | ;; Scroll-bar functions: | |
2153 | (if (fboundp 'scroll-bar-toolkit-scroll) | |
2154 | (put 'scroll-bar-toolkit-scroll 'isearch-scroll t)) | |
6b61353c KH |
2155 | (if (fboundp 'w32-handle-scroll-bar-event) |
2156 | (put 'w32-handle-scroll-bar-event 'isearch-scroll t)) | |
2157 | ||
ad40eec5 JL |
2158 | ;; Commands which scroll the window (some scroll commands |
2159 | ;; already have the `scroll-command' property on them): | |
6b61353c | 2160 | (put 'recenter 'isearch-scroll t) |
21d9ed8b | 2161 | (put 'recenter-top-bottom 'isearch-scroll t) |
6b61353c | 2162 | (put 'reposition-window 'isearch-scroll t) |
6b61353c KH |
2163 | |
2164 | ;; Commands which act on the other window | |
2165 | (put 'list-buffers 'isearch-scroll t) | |
2166 | (put 'scroll-other-window 'isearch-scroll t) | |
2167 | (put 'scroll-other-window-down 'isearch-scroll t) | |
2168 | (put 'beginning-of-buffer-other-window 'isearch-scroll t) | |
2169 | (put 'end-of-buffer-other-window 'isearch-scroll t) | |
2170 | ||
2171 | ;; Commands which change the window layout | |
2172 | (put 'delete-other-windows 'isearch-scroll t) | |
2173 | (put 'balance-windows 'isearch-scroll t) | |
2d197ffb CY |
2174 | (put 'split-window-right 'isearch-scroll t) |
2175 | (put 'split-window-below 'isearch-scroll t) | |
2176 | (put 'enlarge-window 'isearch-scroll t) | |
2177 | ||
2178 | ;; Aliases for split-window-* | |
6b61353c | 2179 | (put 'split-window-vertically 'isearch-scroll t) |
7f55d3b7 | 2180 | (put 'split-window-horizontally 'isearch-scroll t) |
6b61353c KH |
2181 | |
2182 | ;; Universal argument commands | |
2183 | (put 'universal-argument 'isearch-scroll t) | |
2184 | (put 'negative-argument 'isearch-scroll t) | |
2185 | (put 'digit-argument 'isearch-scroll t) | |
2186 | ||
2187 | (defcustom isearch-allow-scroll nil | |
9425f8e1 CY |
2188 | "Whether scrolling is allowed during incremental search. |
2189 | If non-nil, scrolling commands can be used in Isearch mode. | |
2190 | However, the current match will never scroll offscreen. | |
a4b000fb | 2191 | If nil, scrolling commands will first cancel Isearch mode." |
6b61353c KH |
2192 | :type 'boolean |
2193 | :group 'isearch) | |
2194 | ||
80fa505f AM |
2195 | (defcustom isearch-allow-prefix t |
2196 | "Whether prefix arguments are allowed during incremental search. | |
2197 | If non-nil, entering a prefix argument will not terminate the | |
2198 | search. This option is ignored \(presumed t) when | |
2199 | `isearch-allow-scroll' is set." | |
93df970c | 2200 | :version "24.4" |
80fa505f AM |
2201 | :type 'boolean |
2202 | :group 'isearch) | |
2203 | ||
6b61353c KH |
2204 | (defun isearch-string-out-of-window (isearch-point) |
2205 | "Test whether the search string is currently outside of the window. | |
2206 | Return nil if it's completely visible, or if point is visible, | |
2207 | together with as much of the search string as will fit; the symbol | |
2208 | `above' if we need to scroll the text downwards; the symbol `below', | |
2209 | if upwards." | |
2210 | (let ((w-start (window-start)) | |
2211 | (w-end (window-end nil t)) | |
2212 | (w-L1 (save-excursion (move-to-window-line 1) (point))) | |
2213 | (w-L-1 (save-excursion (move-to-window-line -1) (point))) | |
2214 | start end) ; start and end of search string in buffer | |
2215 | (if isearch-forward | |
2216 | (setq end isearch-point start (or isearch-other-end isearch-point)) | |
2217 | (setq start isearch-point end (or isearch-other-end isearch-point))) | |
2218 | (cond ((or (and (>= start w-start) (<= end w-end)) | |
2219 | (if isearch-forward | |
2220 | (and (>= isearch-point w-L-1) (< isearch-point w-end)) ; point on Line -1 | |
2221 | (and (>= isearch-point w-start) (< isearch-point w-L1)))) ; point on Line 0 | |
2222 | nil) | |
2223 | ((and (< start w-start) | |
2224 | (< isearch-point w-L-1)) | |
2225 | 'above) | |
2226 | (t 'below)))) | |
2227 | ||
2228 | (defun isearch-back-into-window (above isearch-point) | |
2229 | "Scroll the window to bring the search string back into view. | |
2230 | Restore point to ISEARCH-POINT in the process. ABOVE is t when the | |
2231 | search string is above the top of the window, nil when it is beneath | |
2232 | the bottom." | |
2233 | (let (start end) | |
2234 | (if isearch-forward | |
2235 | (setq end isearch-point start (or isearch-other-end isearch-point)) | |
2236 | (setq start isearch-point end (or isearch-other-end isearch-point))) | |
2237 | (if above | |
2238 | (progn | |
2239 | (goto-char start) | |
2240 | (recenter 0) | |
2241 | (when (>= isearch-point (window-end nil t)) | |
2242 | (goto-char isearch-point) | |
2243 | (recenter -1))) | |
2244 | (goto-char end) | |
2245 | (recenter -1) | |
2246 | (when (< isearch-point (window-start)) | |
2247 | (goto-char isearch-point) | |
2248 | (recenter 0)))) | |
2249 | (goto-char isearch-point)) | |
2250 | ||
b0949cc4 JL |
2251 | (defvar isearch-pre-scroll-point nil) |
2252 | ||
2253 | (defun isearch-pre-command-hook () | |
2254 | "Decide whether to exit Isearch mode before executing the command. | |
2255 | Don't exit Isearch if the key sequence that invoked this command | |
2256 | is bound in `isearch-mode-map', or if the invoked command is | |
2257 | a prefix argument command (when `isearch-allow-prefix' is non-nil), | |
2258 | or it is a scrolling command (when `isearch-allow-scroll' is non-nil). | |
2259 | Otherwise, exit Isearch (when `search-exit-option' is non-nil) | |
2260 | before the command is executed globally with terminated Isearch." | |
2edcd3c7 | 2261 | (let* ((key (this-single-command-keys)) |
b0949cc4 JL |
2262 | (main-event (aref key 0))) |
2263 | (cond | |
1b12c797 | 2264 | ;; Don't exit Isearch if we're in the middle of some |
8cd22a08 | 2265 | ;; `set-transient-map' thingy like `universal-argument--mode'. |
bf093209 | 2266 | ((not (eq overriding-terminal-local-map isearch--saved-overriding-local-map))) |
b0949cc4 | 2267 | ;; Don't exit Isearch for isearch key bindings. |
b0949cc4 JL |
2268 | ((commandp (lookup-key isearch-mode-map key nil))) |
2269 | ;; Optionally edit the search string instead of exiting. | |
2270 | ((eq search-exit-option 'edit) | |
2271 | (setq this-command 'isearch-edit-string)) | |
2272 | ;; Handle a scrolling function or prefix argument. | |
2273 | ((or (and isearch-allow-prefix | |
2274 | (memq this-command '(universal-argument | |
2edcd3c7 | 2275 | digit-argument negative-argument))) |
b0949cc4 | 2276 | (and isearch-allow-scroll |
2178e858 | 2277 | (symbolp this-command) |
b0949cc4 JL |
2278 | (or (eq (get this-command 'isearch-scroll) t) |
2279 | (eq (get this-command 'scroll-command) t)))) | |
2280 | (when isearch-allow-scroll | |
2281 | (setq isearch-pre-scroll-point (point)))) | |
2282 | ;; A mouse click on the isearch message starts editing the search string. | |
2283 | ((and (eq (car-safe main-event) 'down-mouse-1) | |
2284 | (window-minibuffer-p (posn-window (event-start main-event)))) | |
2285 | ;; Swallow the up-event. | |
2286 | (read-event) | |
2287 | (setq this-command 'isearch-edit-string)) | |
2288 | ;; Other characters terminate the search and are then executed normally. | |
2289 | (search-exit-option | |
2290 | (isearch-done) | |
2291 | (isearch-clean-overlays)) | |
2292 | ;; If search-exit-option is nil, run the command without exiting Isearch. | |
2293 | (t | |
2294 | (isearch-process-search-string key key))))) | |
2295 | ||
2296 | (defun isearch-post-command-hook () | |
2297 | (when isearch-pre-scroll-point | |
2298 | (let ((ab-bel (isearch-string-out-of-window isearch-pre-scroll-point))) | |
2299 | (if ab-bel | |
2300 | (isearch-back-into-window (eq ab-bel 'above) isearch-pre-scroll-point) | |
2301 | (goto-char isearch-pre-scroll-point))) | |
2302 | (setq isearch-pre-scroll-point nil) | |
2303 | (isearch-update))) | |
8e1cae6d | 2304 | |
6e8cfc81 JL |
2305 | (defun isearch-quote-char (&optional count) |
2306 | "Quote special characters for incremental search. | |
2307 | With argument, add COUNT copies of the character." | |
2308 | (interactive "p") | |
8bc15fa8 | 2309 | (let ((char (read-quoted-char (isearch-message t)))) |
2423c8d5 JL |
2310 | (unless (characterp char) |
2311 | (user-error "%s is not a valid character" | |
2312 | (key-description (vector char)))) | |
3c75023f | 2313 | ;; Assume character codes 0200 - 0377 stand for characters in some |
c20d35d5 KH |
2314 | ;; single-byte character set, and convert them to Emacs |
2315 | ;; characters. | |
63dd1c6f | 2316 | (if (and isearch-regexp isearch-regexp-lax-whitespace (= char ?\s)) |
be02a7ed | 2317 | (if (subregexp-context-p isearch-string (length isearch-string)) |
30bb1443 | 2318 | (isearch-process-search-string "[ ]" " ") |
6e8cfc81 | 2319 | (isearch-process-search-char char count)) |
26f98a7d JL |
2320 | ;; This used to assume character codes 0240 - 0377 stand for |
2321 | ;; characters in some single-byte character set, and converted them | |
2322 | ;; to Emacs characters. But in 23.1 this feature is deprecated | |
2323 | ;; in favor of inserting the corresponding Unicode characters. | |
2324 | ;; (and enable-multibyte-characters | |
2325 | ;; (>= char ?\200) | |
2326 | ;; (<= char ?\377) | |
2327 | ;; (setq char (unibyte-char-to-multibyte char))) | |
6e8cfc81 JL |
2328 | (isearch-process-search-char char count)))) |
2329 | ||
2330 | (defun isearch-printing-char (&optional char count) | |
2331 | "Add this ordinary printing CHAR to the search string and search. | |
2332 | With argument, add COUNT copies of the character." | |
2333 | (interactive (list last-command-event | |
2334 | (prefix-numeric-value current-prefix-arg))) | |
2335 | (let ((char (or char last-command-event))) | |
45b94eb2 | 2336 | (if (= char ?\S-\ ) |
6480c508 | 2337 | (setq char ?\s)) |
758710cb | 2338 | (if current-input-method |
6e8cfc81 JL |
2339 | (isearch-process-search-multibyte-characters char count) |
2340 | (isearch-process-search-char char count)))) | |
8e1cae6d | 2341 | |
6e8cfc81 | 2342 | (defun isearch-process-search-char (char &optional count) |
6f2df0f4 JL |
2343 | ;; * and ? are special in regexps when not preceded by \. |
2344 | ;; } and | are special in regexps when preceded by \. | |
2345 | ;; Nothing special for + because it matches at least once. | |
2346 | (cond | |
2347 | ((memq char '(?* ??)) (isearch-fallback nil)) | |
2348 | ((eq char ?\}) (isearch-fallback t t)) | |
2349 | ((eq char ?|) (isearch-fallback t nil t))) | |
2350 | ||
6e8cfc81 JL |
2351 | ;; Append the char(s) to the search string, |
2352 | ;; update the message and re-search. | |
2353 | (let* ((string (if (and (integerp count) (> count 1)) | |
2354 | (make-string count char) | |
2355 | (char-to-string char))) | |
2356 | (message (if (>= char ?\200) | |
2357 | string | |
2358 | (mapconcat 'isearch-text-char-description string "")))) | |
2359 | (isearch-process-search-string string message))) | |
8e1cae6d JB |
2360 | |
2361 | (defun isearch-process-search-string (string message) | |
2362 | (setq isearch-string (concat isearch-string string) | |
2363 | isearch-message (concat isearch-message message)) | |
2364 | (isearch-search-and-update)) | |
2365 | ||
2366 | \f | |
8e1cae6d JB |
2367 | ;; Search Ring |
2368 | ||
08200510 RS |
2369 | (defun isearch-ring-adjust1 (advance) |
2370 | ;; Helper for isearch-ring-adjust | |
2371 | (let* ((ring (if isearch-regexp regexp-search-ring search-ring)) | |
8e1cae6d JB |
2372 | (length (length ring)) |
2373 | (yank-pointer-name (if isearch-regexp | |
08200510 | 2374 | 'regexp-search-ring-yank-pointer |
8e1cae6d JB |
2375 | 'search-ring-yank-pointer)) |
2376 | (yank-pointer (eval yank-pointer-name))) | |
2377 | (if (zerop length) | |
2378 | () | |
2379 | (set yank-pointer-name | |
2380 | (setq yank-pointer | |
11dcdbb2 | 2381 | (mod (+ (or yank-pointer (if advance 0 -1)) |
ffbc30b2 PE |
2382 | (if advance -1 1)) |
2383 | length))) | |
a5dcf63f | 2384 | (setq isearch-string (nth yank-pointer ring) |
08200510 RS |
2385 | isearch-message (mapconcat 'isearch-text-char-description |
2386 | isearch-string ""))))) | |
2387 | ||
2388 | (defun isearch-ring-adjust (advance) | |
2389 | ;; Helper for isearch-ring-advance and isearch-ring-retreat | |
08200510 | 2390 | (isearch-ring-adjust1 advance) |
08200510 RS |
2391 | (if search-ring-update |
2392 | (progn | |
2393 | (isearch-search) | |
a71a98cf | 2394 | (isearch-push-state) |
08200510 | 2395 | (isearch-update)) |
a71a98cf JL |
2396 | ;; Otherwise, edit the search string instead. Note that there is |
2397 | ;; no need to push the search state after isearch-edit-string here | |
2398 | ;; since isearch-edit-string already pushes its state | |
2399 | (isearch-edit-string))) | |
8e1cae6d JB |
2400 | |
2401 | (defun isearch-ring-advance () | |
2402 | "Advance to the next search string in the ring." | |
08200510 | 2403 | ;; This could be more general to handle a prefix arg, but who would use it. |
8e1cae6d JB |
2404 | (interactive) |
2405 | (isearch-ring-adjust 'advance)) | |
2406 | ||
2407 | (defun isearch-ring-retreat () | |
2408 | "Retreat to the previous search string in the ring." | |
2409 | (interactive) | |
2410 | (isearch-ring-adjust nil)) | |
2411 | ||
08200510 RS |
2412 | (defun isearch-complete1 () |
2413 | ;; Helper for isearch-complete and isearch-complete-edit | |
2414 | ;; Return t if completion OK, nil if no completion exists. | |
2415 | (let* ((ring (if isearch-regexp regexp-search-ring search-ring)) | |
08200510 | 2416 | (completion-ignore-case case-fold-search) |
c789e608 | 2417 | (completion (try-completion isearch-string ring))) |
08200510 RS |
2418 | (cond |
2419 | ((eq completion t) | |
2420 | ;; isearch-string stays the same | |
2421 | t) | |
2422 | ((or completion ; not nil, must be a string | |
b7852303 | 2423 | (= 0 (length isearch-string))) ; shouldn't have to say this |
08200510 | 2424 | (if (equal completion isearch-string) ;; no extension? |
36bcac3f RS |
2425 | (progn |
2426 | (if completion-auto-help | |
2427 | (with-output-to-temp-buffer "*Isearch completions*" | |
b48ca14f | 2428 | (display-completion-list |
c789e608 | 2429 | (all-completions isearch-string ring)))) |
36bcac3f RS |
2430 | t) |
2431 | (and completion | |
2432 | (setq isearch-string completion)))) | |
08200510 RS |
2433 | (t |
2434 | (message "No completion") ; waits a second if in minibuffer | |
2435 | nil)))) | |
2436 | ||
2437 | (defun isearch-complete () | |
2438 | "Complete the search string from the strings on the search ring. | |
2439 | The completed string is then editable in the minibuffer. | |
2440 | If there is no completion possible, say so and continue searching." | |
2441 | (interactive) | |
2442 | (if (isearch-complete1) | |
3ae4c509 RS |
2443 | (progn (setq isearch-message |
2444 | (mapconcat 'isearch-text-char-description | |
2445 | isearch-string "")) | |
2446 | (isearch-edit-string)) | |
08200510 RS |
2447 | ;; else |
2448 | (sit-for 1) | |
2449 | (isearch-update))) | |
8e1cae6d | 2450 | |
08200510 RS |
2451 | (defun isearch-complete-edit () |
2452 | "Same as `isearch-complete' except in the minibuffer." | |
2453 | (interactive) | |
c789e608 | 2454 | (setq isearch-string (field-string)) |
08200510 | 2455 | (if (isearch-complete1) |
8e1cae6d | 2456 | (progn |
b7b66466 | 2457 | (delete-field) |
08200510 | 2458 | (insert isearch-string)))) |
8e1cae6d JB |
2459 | |
2460 | \f | |
8e1cae6d JB |
2461 | ;; Message string |
2462 | ||
2463 | (defun isearch-message (&optional c-q-hack ellipsis) | |
2464 | ;; Generate and print the message string. | |
2465 | (let ((cursor-in-echo-area ellipsis) | |
d8891294 | 2466 | (m isearch-message) |
72779976 JL |
2467 | (fail-pos (isearch-fail-pos t))) |
2468 | ;; Highlight failed part | |
2469 | (when fail-pos | |
2470 | (setq m (copy-sequence m)) | |
2471 | (add-text-properties fail-pos (length m) '(face isearch-fail) m) | |
d8891294 JL |
2472 | ;; Highlight failed trailing whitespace |
2473 | (when (string-match " +$" m) | |
2474 | (add-text-properties (match-beginning 0) (match-end 0) | |
2475 | '(face trailing-whitespace) m))) | |
2476 | (setq m (concat | |
7c2dc8bd | 2477 | (isearch-message-prefix ellipsis isearch-nonincremental) |
d8891294 | 2478 | m |
7c2dc8bd | 2479 | (isearch-message-suffix c-q-hack))) |
d8891294 | 2480 | (if c-q-hack m (let ((message-log-max nil)) (message "%s" m))))) |
8e1cae6d | 2481 | |
7c2dc8bd | 2482 | (defun isearch-message-prefix (&optional ellipsis nonincremental) |
8e1cae6d JB |
2483 | ;; If about to search, and previous search regexp was invalid, |
2484 | ;; check that it still is. If it is valid now, | |
2485 | ;; let the message we display while searching say that it is valid. | |
ba653a53 | 2486 | (and isearch-error ellipsis |
8e1cae6d JB |
2487 | (condition-case () |
2488 | (progn (re-search-forward isearch-string (point) t) | |
ba653a53 | 2489 | (setq isearch-error nil)) |
8e1cae6d JB |
2490 | (error nil))) |
2491 | ;; If currently failing, display no ellipsis. | |
2492 | (or isearch-success (setq ellipsis nil)) | |
2493 | (let ((m (concat (if isearch-success "" "failing ") | |
d85519bb | 2494 | (if isearch-adjusted "pending " "") |
7badea30 | 2495 | (if (and isearch-wrapped |
6a18e4e7 | 2496 | (not isearch-wrap-function) |
7badea30 RS |
2497 | (if isearch-forward |
2498 | (> (point) isearch-opoint) | |
2499 | (< (point) isearch-opoint))) | |
2500 | "over") | |
8e1cae6d | 2501 | (if isearch-wrapped "wrapped ") |
dc6c0eda SM |
2502 | (let ((prefix "")) |
2503 | (advice-function-mapc | |
2504 | (lambda (_ props) | |
2505 | (let ((np (cdr (assq 'isearch-message-prefix props)))) | |
2506 | (if np (setq prefix (concat np prefix))))) | |
2507 | isearch-filter-predicate) | |
2508 | prefix) | |
d5e61c1c JL |
2509 | (if isearch-word |
2510 | (or (and (symbolp isearch-word) | |
2511 | (get isearch-word 'isearch-message-prefix)) | |
2512 | "word ") | |
2513 | "") | |
8e1cae6d | 2514 | (if isearch-regexp "regexp " "") |
3c0aa5e6 | 2515 | (if multi-isearch-next-buffer-current-function "multi " "") |
ee9b85a8 | 2516 | (or isearch-message-prefix-add "") |
08200510 | 2517 | (if nonincremental "search" "I-search") |
f46d5091 | 2518 | (if isearch-forward "" " backward") |
5b56d4e4 | 2519 | (if current-input-method |
66e0570c EZ |
2520 | ;; Input methods for RTL languages use RTL |
2521 | ;; characters for their title, and that messes | |
dd782f24 | 2522 | ;; up the display of search text after the prompt. |
66e0570c EZ |
2523 | (bidi-string-mark-left-to-right |
2524 | (concat " [" current-input-method-title "]: ")) | |
f46d5091 | 2525 | ": ") |
8e1cae6d | 2526 | ))) |
aec11aff KS |
2527 | (propertize (concat (upcase (substring m 0 1)) (substring m 1)) |
2528 | 'face 'minibuffer-prompt))) | |
8e1cae6d | 2529 | |
7c2dc8bd | 2530 | (defun isearch-message-suffix (&optional c-q-hack) |
8e1cae6d | 2531 | (concat (if c-q-hack "^Q" "") |
ba653a53 JL |
2532 | (if isearch-error |
2533 | (concat " [" isearch-error "]") | |
ee9b85a8 JL |
2534 | "") |
2535 | (or isearch-message-suffix-add ""))) | |
8e1cae6d JB |
2536 | |
2537 | \f | |
191f025a SM |
2538 | ;; Searching |
2539 | ||
8cbd80f7 JL |
2540 | (defvar isearch-search-fun-function 'isearch-search-fun-default |
2541 | "Non-default value overrides the behavior of `isearch-search-fun-default'. | |
f158badc LMI |
2542 | This variable's value should be a function, which will be called |
2543 | with no arguments, and should return a function that takes three | |
2544 | arguments: STRING, BOUND, and NOERROR. | |
2545 | ||
2546 | This returned function will be used by `isearch-search-string' to | |
2547 | search for the first occurrence of STRING or its translation.") | |
191f025a SM |
2548 | |
2549 | (defun isearch-search-fun () | |
2550 | "Return the function to use for the search. | |
2551 | Can be changed via `isearch-search-fun-function' for special needs." | |
8cbd80f7 JL |
2552 | (funcall (or isearch-search-fun-function 'isearch-search-fun-default))) |
2553 | ||
2554 | (defun isearch-search-fun-default () | |
2555 | "Return default functions to use for the search." | |
2556 | (cond | |
2557 | (isearch-word | |
d5e61c1c JL |
2558 | (lambda (string &optional bound noerror count) |
2559 | ;; Use lax versions to not fail at the end of the word while | |
2560 | ;; the user adds and removes characters in the search string | |
2561 | ;; (or when using nonincremental word isearch) | |
2562 | (let ((lax (not (or isearch-nonincremental | |
dc2bc295 | 2563 | (null (car isearch-cmds)) |
d5e61c1c | 2564 | (eq (length isearch-string) |
7c2dc8bd SM |
2565 | (length (isearch--state-string |
2566 | (car isearch-cmds)))))))) | |
d5e61c1c JL |
2567 | (funcall |
2568 | (if isearch-forward #'re-search-forward #'re-search-backward) | |
2569 | (if (functionp isearch-word) | |
2570 | (funcall isearch-word string lax) | |
2571 | (word-search-regexp string lax)) | |
2572 | bound noerror count)))) | |
63dd1c6f JL |
2573 | ((and isearch-regexp isearch-regexp-lax-whitespace |
2574 | search-whitespace-regexp) | |
2575 | (if isearch-forward | |
2576 | 're-search-forward-lax-whitespace | |
2577 | 're-search-backward-lax-whitespace)) | |
8cbd80f7 JL |
2578 | (isearch-regexp |
2579 | (if isearch-forward 're-search-forward 're-search-backward)) | |
63dd1c6f JL |
2580 | ((and isearch-lax-whitespace search-whitespace-regexp) |
2581 | (if isearch-forward | |
2582 | 'search-forward-lax-whitespace | |
2583 | 'search-backward-lax-whitespace)) | |
8cbd80f7 | 2584 | (t |
63dd1c6f | 2585 | (if isearch-forward 'search-forward 'search-backward)))) |
8e1cae6d | 2586 | |
6cf157df | 2587 | (defun isearch-search-string (string bound noerror) |
4b65254d JB |
2588 | "Search for the first occurrence of STRING or its translation. |
2589 | If found, move point to the end of the occurrence, | |
2590 | update the match data, and return point." | |
3be5da9e SM |
2591 | (let* ((func (isearch-search-fun)) |
2592 | (pos1 (save-excursion (funcall func string bound noerror))) | |
2593 | pos2) | |
0d58bedd EZ |
2594 | (when (and |
2595 | ;; Avoid "obsolete" warnings for translation-table-for-input. | |
2596 | (with-no-warnings | |
2597 | (char-table-p translation-table-for-input)) | |
2598 | (multibyte-string-p string) | |
2599 | ;; Minor optimization. | |
2600 | (string-match-p "[^[:ascii:]]" string)) | |
3be5da9e SM |
2601 | (let ((translated |
2602 | (apply 'string | |
2603 | (mapcar (lambda (c) | |
0d58bedd EZ |
2604 | (or |
2605 | ;; Avoid "obsolete" warnings for | |
2606 | ;; translation-table-for-input. | |
2607 | (with-no-warnings | |
2608 | (aref translation-table-for-input c)) | |
2609 | c)) | |
3be5da9e SM |
2610 | string))) |
2611 | match-data) | |
2612 | (when translated | |
2613 | (save-match-data | |
2614 | (save-excursion | |
2615 | (if (setq pos2 (funcall func translated bound noerror)) | |
2616 | (setq match-data (match-data t))))) | |
2617 | (when (and pos2 | |
2618 | (or (not pos1) | |
2619 | (if isearch-forward (< pos2 pos1) (> pos2 pos1)))) | |
2620 | (setq pos1 pos2) | |
2621 | (set-match-data match-data))))) | |
d240f431 JL |
2622 | (when pos1 |
2623 | ;; When using multiple buffers isearch, switch to the new buffer here, | |
2624 | ;; because `save-excursion' above doesn't allow doing it inside funcall. | |
3c0aa5e6 JL |
2625 | (if (and multi-isearch-next-buffer-current-function |
2626 | (buffer-live-p multi-isearch-current-buffer)) | |
2627 | (switch-to-buffer multi-isearch-current-buffer)) | |
3be5da9e SM |
2628 | (goto-char pos1) |
2629 | pos1))) | |
6cf157df | 2630 | |
8e1cae6d JB |
2631 | (defun isearch-search () |
2632 | ;; Do the search with the current search string. | |
ac475d3a JL |
2633 | (if isearch-message-function |
2634 | (funcall isearch-message-function nil t) | |
2635 | (isearch-message nil t)) | |
4453091d | 2636 | (if (and (eq isearch-case-fold-search t) search-upper-case) |
b78559b0 RS |
2637 | (setq isearch-case-fold-search |
2638 | (isearch-no-upper-case-p isearch-string isearch-regexp))) | |
8e1cae6d | 2639 | (condition-case lossage |
01dea85f | 2640 | (let ((inhibit-point-motion-hooks isearch-invisible) |
79c7a4fa | 2641 | (inhibit-quit nil) |
86bfaffe | 2642 | (case-fold-search isearch-case-fold-search) |
01dea85f | 2643 | (search-invisible isearch-invisible) |
86bfaffe | 2644 | (retry t)) |
ba653a53 | 2645 | (setq isearch-error nil) |
86bfaffe RS |
2646 | (while retry |
2647 | (setq isearch-success | |
6cf157df | 2648 | (isearch-search-string isearch-string nil t)) |
2f669fac JL |
2649 | ;; Clear RETRY unless the search predicate says |
2650 | ;; to skip this search hit. | |
5e189f39 | 2651 | (if (or (not isearch-success) |
86bfaffe RS |
2652 | (bobp) (eobp) |
2653 | (= (match-beginning 0) (match-end 0)) | |
dc6c0eda SM |
2654 | (funcall isearch-filter-predicate |
2655 | (match-beginning 0) (match-end 0))) | |
86bfaffe | 2656 | (setq retry nil))) |
99ae9e9f | 2657 | (setq isearch-just-started nil) |
8e1cae6d JB |
2658 | (if isearch-success |
2659 | (setq isearch-other-end | |
2660 | (if isearch-forward (match-beginning 0) (match-end 0))))) | |
2661 | ||
d32696d4 | 2662 | (quit (isearch-unread ?\C-g) |
8e1cae6d JB |
2663 | (setq isearch-success nil)) |
2664 | ||
191f025a | 2665 | (invalid-regexp |
ba653a53 | 2666 | (setq isearch-error (car (cdr lossage))) |
121f8c95 JL |
2667 | (cond |
2668 | ((string-match | |
2669 | "\\`Premature \\|\\`Unmatched \\|\\`Invalid " | |
2670 | isearch-error) | |
2671 | (setq isearch-error "incomplete input")) | |
2672 | ((and (not isearch-regexp) | |
2673 | (string-match "\\`Regular expression too big" isearch-error)) | |
2674 | (cond | |
2675 | (isearch-word | |
2676 | (setq isearch-error "Too many words")) | |
2677 | ((and isearch-lax-whitespace search-whitespace-regexp) | |
2678 | (setq isearch-error "Too many spaces for whitespace matching")))))) | |
ba653a53 JL |
2679 | |
2680 | (search-failed | |
2681 | (setq isearch-success nil) | |
2682 | (setq isearch-error (nth 2 lossage))) | |
2683 | ||
f1c03125 | 2684 | (error |
c982ab21 | 2685 | ;; stack overflow in regexp search. |
ba653a53 | 2686 | (setq isearch-error (format "%s" lossage)))) |
8e1cae6d JB |
2687 | |
2688 | (if isearch-success | |
2689 | nil | |
2690 | ;; Ding if failed this time after succeeding last time. | |
7c2dc8bd | 2691 | (and (isearch--state-success (car isearch-cmds)) |
8e1cae6d | 2692 | (ding)) |
7c2dc8bd SM |
2693 | (if (functionp (isearch--state-pop-fun (car isearch-cmds))) |
2694 | (funcall (isearch--state-pop-fun (car isearch-cmds)) | |
2695 | (car isearch-cmds))) | |
2696 | (goto-char (isearch--state-point (car isearch-cmds))))) | |
8e1cae6d | 2697 | |
0352b205 | 2698 | |
191f025a | 2699 | ;; Called when opening an overlay, and we are still in isearch. |
0352b205 | 2700 | (defun isearch-open-overlay-temporary (ov) |
b48ca14f | 2701 | (if (not (null (overlay-get ov 'isearch-open-invisible-temporary))) |
0352b205 RS |
2702 | ;; Some modes would want to open the overlays temporary during |
2703 | ;; isearch in their own way, they should set the | |
2704 | ;; `isearch-open-invisible-temporary' to a function doing this. | |
2705 | (funcall (overlay-get ov 'isearch-open-invisible-temporary) ov nil) | |
2706 | ;; Store the values for the `invisible' and `intangible' | |
2707 | ;; properties, and then set them to nil. This way the text hidden | |
2708 | ;; by this overlay becomes visible. | |
2709 | ||
380866a2 | 2710 | ;; Do we really need to set the `intangible' property to t? Can we |
0352b205 RS |
2711 | ;; have the point inside an overlay with an `intangible' property? |
2712 | ;; In 19.34 this does not exist so I cannot test it. | |
2713 | (overlay-put ov 'isearch-invisible (overlay-get ov 'invisible)) | |
2714 | (overlay-put ov 'isearch-intangible (overlay-get ov 'intangible)) | |
2715 | (overlay-put ov 'invisible nil) | |
2716 | (overlay-put ov 'intangible nil))) | |
2717 | ||
2718 | ||
191f025a SM |
2719 | ;; This is called at the end of isearch. It will open the overlays |
2720 | ;; that contain the latest match. Obviously in case of a C-g the | |
2721 | ;; point returns to the original location which surely is not contain | |
2722 | ;; in any of these overlays, se we are safe in this case too. | |
0352b205 | 2723 | (defun isearch-open-necessary-overlays (ov) |
191f025a | 2724 | (let ((inside-overlay (and (> (point) (overlay-start ov)) |
0352b205 RS |
2725 | (< (point) (overlay-end ov)))) |
2726 | ;; If this exists it means that the overlay was opened using | |
2727 | ;; this function, not by us tweaking the overlay properties. | |
2728 | (fct-temp (overlay-get ov 'isearch-open-invisible-temporary))) | |
2729 | (when (or inside-overlay (not fct-temp)) | |
2730 | ;; restore the values for the `invisible' and `intangible' | |
2731 | ;; properties | |
2732 | (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible)) | |
2733 | (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible)) | |
2734 | (overlay-put ov 'isearch-invisible nil) | |
2735 | (overlay-put ov 'isearch-intangible nil)) | |
2736 | (if inside-overlay | |
2737 | (funcall (overlay-get ov 'isearch-open-invisible) ov) | |
2738 | (if fct-temp | |
2739 | (funcall fct-temp ov t))))) | |
2740 | ||
191f025a SM |
2741 | ;; This is called when exiting isearch. It closes the temporary |
2742 | ;; opened overlays, except the ones that contain the latest match. | |
0352b205 RS |
2743 | (defun isearch-clean-overlays () |
2744 | (when isearch-opened-overlays | |
02b2f510 | 2745 | (mapc 'isearch-open-necessary-overlays isearch-opened-overlays) |
0352b205 RS |
2746 | (setq isearch-opened-overlays nil))) |
2747 | ||
fc0eccfc GM |
2748 | |
2749 | (defun isearch-intersects-p (start0 end0 start1 end1) | |
2750 | "Return t if regions START0..END0 and START1..END1 intersect." | |
eaa493df GM |
2751 | (or (and (>= start0 start1) (< start0 end1)) |
2752 | (and (> end0 start1) (<= end0 end1)) | |
2753 | (and (>= start1 start0) (< start1 end0)) | |
2754 | (and (> end1 start0) (<= end1 end0)))) | |
fc0eccfc GM |
2755 | |
2756 | ||
191f025a SM |
2757 | ;; Verify if the current match is outside of each element of |
2758 | ;; `isearch-opened-overlays', if so close that overlay. | |
fc0eccfc GM |
2759 | |
2760 | (defun isearch-close-unnecessary-overlays (begin end) | |
2761 | (let ((overlays isearch-opened-overlays)) | |
0352b205 | 2762 | (setq isearch-opened-overlays nil) |
fc0eccfc GM |
2763 | (dolist (ov overlays) |
2764 | (if (isearch-intersects-p begin end (overlay-start ov) (overlay-end ov)) | |
2765 | (push ov isearch-opened-overlays) | |
2766 | (let ((fct-temp (overlay-get ov 'isearch-open-invisible-temporary))) | |
2767 | (if fct-temp | |
2768 | ;; If this exists it means that the overlay was opened | |
2769 | ;; using this function, not by us tweaking the overlay | |
2770 | ;; properties. | |
2771 | (funcall fct-temp ov t) | |
2772 | (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible)) | |
2773 | (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible)) | |
2774 | (overlay-put ov 'isearch-invisible nil) | |
2775 | (overlay-put ov 'isearch-intangible nil))))))) | |
2776 | ||
0352b205 | 2777 | |
86bfaffe | 2778 | (defun isearch-range-invisible (beg end) |
79c7a4fa | 2779 | "Return t if all the text from BEG to END is invisible." |
cd59ea72 SM |
2780 | (when (/= beg end) |
2781 | ;; Check that invisibility runs up to END. | |
2782 | (save-excursion | |
2783 | (goto-char beg) | |
2784 | (let (;; can-be-opened keeps track if we can open some overlays. | |
2785 | (can-be-opened (eq search-invisible 'open)) | |
2786 | ;; the list of overlays that could be opened | |
2787 | (crt-overlays nil)) | |
2788 | (when (and can-be-opened isearch-hide-immediately) | |
2789 | (isearch-close-unnecessary-overlays beg end)) | |
2790 | ;; If the following character is currently invisible, | |
2791 | ;; skip all characters with that same `invisible' property value. | |
2792 | ;; Do that over and over. | |
4d90d6d0 | 2793 | (while (and (< (point) end) (invisible-p (point))) |
66e2e71d | 2794 | (if (invisible-p (get-text-property (point) 'invisible)) |
cd59ea72 SM |
2795 | (progn |
2796 | (goto-char (next-single-property-change (point) 'invisible | |
2797 | nil end)) | |
2798 | ;; if text is hidden by an `invisible' text property | |
2799 | ;; we cannot open it at all. | |
2800 | (setq can-be-opened nil)) | |
2801 | (when can-be-opened | |
2802 | (let ((overlays (overlays-at (point))) | |
2803 | ov-list | |
2804 | o | |
2805 | invis-prop) | |
2806 | (while overlays | |
2807 | (setq o (car overlays) | |
2808 | invis-prop (overlay-get o 'invisible)) | |
4d90d6d0 | 2809 | (if (invisible-p invis-prop) |
cd59ea72 SM |
2810 | (if (overlay-get o 'isearch-open-invisible) |
2811 | (setq ov-list (cons o ov-list)) | |
2812 | ;; We found one overlay that cannot be | |
2813 | ;; opened, that means the whole chunk | |
2814 | ;; cannot be opened. | |
2815 | (setq can-be-opened nil))) | |
2816 | (setq overlays (cdr overlays))) | |
2817 | (if can-be-opened | |
2818 | ;; It makes sense to append to the open | |
2819 | ;; overlays list only if we know that this is | |
2820 | ;; t. | |
2821 | (setq crt-overlays (append ov-list crt-overlays))))) | |
2822 | (goto-char (next-overlay-change (point))))) | |
2823 | ;; See if invisibility reaches up thru END. | |
2824 | (if (>= (point) end) | |
2825 | (if (and can-be-opened (consp crt-overlays)) | |
2826 | (progn | |
2827 | (setq isearch-opened-overlays | |
2828 | (append isearch-opened-overlays crt-overlays)) | |
2829 | (mapc 'isearch-open-overlay-temporary crt-overlays) | |
2830 | nil) | |
2831 | (setq isearch-hidden t))))))) | |
08200510 | 2832 | |
f2fd3261 JL |
2833 | (defun isearch-filter-visible (beg end) |
2834 | "Test whether the current search hit is visible at least partially. | |
2835 | Return non-nil if the text from BEG to END is visible to Isearch as | |
2836 | determined by `isearch-range-invisible' unless invisible text can be | |
2837 | searched too when `search-invisible' is t." | |
5e189f39 JL |
2838 | (or (eq search-invisible t) |
2839 | (not (isearch-range-invisible beg end)))) | |
2840 | ||
08200510 | 2841 | \f |
191f025a | 2842 | ;; General utilities |
08200510 | 2843 | |
b78559b0 RS |
2844 | (defun isearch-no-upper-case-p (string regexp-flag) |
2845 | "Return t if there are no upper case chars in STRING. | |
b7852303 | 2846 | If REGEXP-FLAG is non-nil, disregard letters preceded by `\\' (but not `\\\\') |
b78559b0 | 2847 | since they have special meaning in a regexp." |
b48ca14f | 2848 | (let (quote-flag (i 0) (len (length string)) found) |
59057198 RS |
2849 | (while (and (not found) (< i len)) |
2850 | (let ((char (aref string i))) | |
2851 | (if (and regexp-flag (eq char ?\\)) | |
2852 | (setq quote-flag (not quote-flag)) | |
2853 | (if (and (not quote-flag) (not (eq char (downcase char)))) | |
f4be3f89 RS |
2854 | (setq found t)) |
2855 | (setq quote-flag nil))) | |
59057198 | 2856 | (setq i (1+ i))) |
c5f847b6 SM |
2857 | (not (or found |
2858 | ;; Even if there's no uppercase char, we want to detect the use | |
2859 | ;; of [:upper:] or [:lower:] char-class, which indicates | |
2860 | ;; clearly that the user cares about case distinction. | |
2861 | (and regexp-flag (string-match "\\[:\\(upp\\|low\\)er:]" string) | |
2862 | (condition-case err | |
2863 | (progn | |
2864 | (string-match (substring string 0 (match-beginning 0)) | |
2865 | "") | |
2866 | nil) | |
2867 | (invalid-regexp | |
2868 | (equal "Unmatched [ or [^" (cadr err))))))))) | |
08200510 | 2869 | |
b78559b0 | 2870 | ;; Portability functions to support various Emacs versions. |
8e1cae6d | 2871 | |
08200510 | 2872 | (defun isearch-text-char-description (c) |
14373677 | 2873 | (cond |
cf5e4199 JL |
2874 | ((< c ?\s) (propertize (format "^%c" (+ c 64)) 'face 'escape-glyph)) |
2875 | ((= c ?\^?) (propertize "^?" 'face 'escape-glyph)) | |
14373677 | 2876 | (t (char-to-string c)))) |
08200510 | 2877 | |
bd1bd125 | 2878 | ;; General function to unread characters or events. |
99ae9e9f | 2879 | ;; Also insert them in a keyboard macro being defined. |
8f90f594 | 2880 | (defun isearch-unread (&rest char-or-events) |
02b2f510 | 2881 | (mapc 'store-kbd-macro-event char-or-events) |
bd1bd125 RS |
2882 | (setq unread-command-events |
2883 | (append char-or-events unread-command-events))) | |
08200510 | 2884 | |
44336afb | 2885 | \f |
bca92193 JL |
2886 | ;; Highlighting |
2887 | ||
2888 | (defvar isearch-overlay nil) | |
2889 | ||
2890 | (defun isearch-highlight (beg end) | |
704d3ae7 JL |
2891 | (if search-highlight |
2892 | (if isearch-overlay | |
2893 | ;; Overlay already exists, just move it. | |
2894 | (move-overlay isearch-overlay beg end (current-buffer)) | |
2895 | ;; Overlay doesn't exist, create it. | |
2896 | (setq isearch-overlay (make-overlay beg end)) | |
2897 | ;; 1001 is higher than lazy's 1000 and ediff's 100+ | |
2898 | (overlay-put isearch-overlay 'priority 1001) | |
4be520fb | 2899 | (overlay-put isearch-overlay 'face isearch-face)))) |
bca92193 JL |
2900 | |
2901 | (defun isearch-dehighlight () | |
2902 | (when isearch-overlay | |
2903 | (delete-overlay isearch-overlay))) | |
2904 | \f | |
191f025a SM |
2905 | ;; isearch-lazy-highlight feature |
2906 | ;; by Bob Glickstein <http://www.zanshin.com/~bobg/> | |
2907 | ||
2908 | ;; When active, *every* match for the current search string is | |
2909 | ;; highlighted: the current one using the normal isearch match color | |
e3cde0c7 | 2910 | ;; and all the others using `isearch-lazy-highlight'. The extra |
191f025a SM |
2911 | ;; highlighting makes it easier to anticipate where the cursor will |
2912 | ;; land each time you press C-s or C-r to repeat a pending search. | |
2913 | ;; Highlighting of these additional matches happens in a deferred | |
2914 | ;; fashion using "idle timers," so the cycles needed do not rob | |
2915 | ;; isearch of its usual snappy response. | |
2916 | ||
2917 | ;; IMPLEMENTATION NOTE: This depends on some isearch internals. | |
2918 | ;; Specifically: | |
2919 | ;; - `isearch-update' is expected to be called (at least) every time | |
2920 | ;; the search string or window-start changes; | |
2921 | ;; - `isearch-string' is expected to contain the current search | |
2922 | ;; string as entered by the user; | |
2923 | ;; - the type of the current search is expected to be given by | |
2924 | ;; `isearch-word' and `isearch-regexp'; | |
2925 | ;; - the direction of the current search is expected to be given by | |
2926 | ;; `isearch-forward'; | |
ba653a53 | 2927 | ;; - the variable `isearch-error' is expected to be true |
4837b516 | 2928 | ;; only if `isearch-string' is an invalid regexp. |
44336afb | 2929 | |
44336afb | 2930 | (defvar isearch-lazy-highlight-overlays nil) |
c982ab21 | 2931 | (defvar isearch-lazy-highlight-wrapped nil) |
f9114cec RS |
2932 | (defvar isearch-lazy-highlight-start-limit nil) |
2933 | (defvar isearch-lazy-highlight-end-limit nil) | |
44336afb GM |
2934 | (defvar isearch-lazy-highlight-start nil) |
2935 | (defvar isearch-lazy-highlight-end nil) | |
2936 | (defvar isearch-lazy-highlight-timer nil) | |
2937 | (defvar isearch-lazy-highlight-last-string nil) | |
c982ab21 GM |
2938 | (defvar isearch-lazy-highlight-window nil) |
2939 | (defvar isearch-lazy-highlight-window-start nil) | |
6b61353c | 2940 | (defvar isearch-lazy-highlight-window-end nil) |
46daf6c7 GM |
2941 | (defvar isearch-lazy-highlight-case-fold-search nil) |
2942 | (defvar isearch-lazy-highlight-regexp nil) | |
63dd1c6f JL |
2943 | (defvar isearch-lazy-highlight-lax-whitespace nil) |
2944 | (defvar isearch-lazy-highlight-regexp-lax-whitespace nil) | |
7ce7717b | 2945 | (defvar isearch-lazy-highlight-word nil) |
e54a1075 | 2946 | (defvar isearch-lazy-highlight-forward nil) |
957e5dd1 | 2947 | (defvar isearch-lazy-highlight-error nil) |
44336afb | 2948 | |
46fe9018 | 2949 | (defun lazy-highlight-cleanup (&optional force) |
c982ab21 | 2950 | "Stop lazy highlighting and remove extra highlighting from current buffer. |
c1bc6bb6 | 2951 | FORCE non-nil means do it whether or not `lazy-highlight-cleanup' |
c982ab21 | 2952 | is nil. This function is called when exiting an incremental search if |
c1bc6bb6 | 2953 | `lazy-highlight-cleanup' is non-nil." |
44336afb | 2954 | (interactive '(t)) |
c1bc6bb6 | 2955 | (if (or force lazy-highlight-cleanup) |
c982ab21 GM |
2956 | (while isearch-lazy-highlight-overlays |
2957 | (delete-overlay (car isearch-lazy-highlight-overlays)) | |
2958 | (setq isearch-lazy-highlight-overlays | |
2959 | (cdr isearch-lazy-highlight-overlays)))) | |
2960 | (when isearch-lazy-highlight-timer | |
2961 | (cancel-timer isearch-lazy-highlight-timer) | |
2962 | (setq isearch-lazy-highlight-timer nil))) | |
44336afb | 2963 | |
6480c508 JB |
2964 | (define-obsolete-function-alias 'isearch-lazy-highlight-cleanup |
2965 | 'lazy-highlight-cleanup | |
2966 | "22.1") | |
46fe9018 | 2967 | |
d9dd1f33 | 2968 | (defun isearch-lazy-highlight-new-loop (&optional beg end) |
c1bc6bb6 | 2969 | "Cleanup any previous `lazy-highlight' loop and begin a new one. |
f9114cec RS |
2970 | BEG and END specify the bounds within which highlighting should occur. |
2971 | This is called when `isearch-update' is invoked (which can cause the | |
2972 | search string to change or the window to scroll). It is also used | |
2973 | by other Emacs features." | |
da79720c | 2974 | (when (and (null executing-kbd-macro) |
c982ab21 GM |
2975 | (sit-for 0) ;make sure (window-start) is credible |
2976 | (or (not (equal isearch-string | |
2977 | isearch-lazy-highlight-last-string)) | |
2978 | (not (eq (selected-window) | |
2979 | isearch-lazy-highlight-window)) | |
46daf6c7 GM |
2980 | (not (eq isearch-lazy-highlight-case-fold-search |
2981 | isearch-case-fold-search)) | |
2982 | (not (eq isearch-lazy-highlight-regexp | |
2983 | isearch-regexp)) | |
7ce7717b JL |
2984 | (not (eq isearch-lazy-highlight-word |
2985 | isearch-word)) | |
63dd1c6f JL |
2986 | (not (eq isearch-lazy-highlight-lax-whitespace |
2987 | isearch-lax-whitespace)) | |
2988 | (not (eq isearch-lazy-highlight-regexp-lax-whitespace | |
2989 | isearch-regexp-lax-whitespace)) | |
c982ab21 | 2990 | (not (= (window-start) |
6b61353c KH |
2991 | isearch-lazy-highlight-window-start)) |
2992 | (not (= (window-end) ; Window may have been split/joined. | |
e54a1075 JB |
2993 | isearch-lazy-highlight-window-end)) |
2994 | (not (eq isearch-forward | |
957e5dd1 JL |
2995 | isearch-lazy-highlight-forward)) |
2996 | ;; In case we are recovering from an error. | |
2997 | (not (equal isearch-error | |
2998 | isearch-lazy-highlight-error)))) | |
c982ab21 | 2999 | ;; something important did indeed change |
46fe9018 | 3000 | (lazy-highlight-cleanup t) ;kill old loop & remove overlays |
957e5dd1 | 3001 | (setq isearch-lazy-highlight-error isearch-error) |
30c62133 JL |
3002 | ;; It used to check for `(not isearch-error)' here, but actually |
3003 | ;; lazy-highlighting might find matches to highlight even when | |
3004 | ;; `isearch-error' is non-nil. (Bug#9918) | |
3005 | (setq isearch-lazy-highlight-start-limit beg | |
3006 | isearch-lazy-highlight-end-limit end) | |
3007 | (setq isearch-lazy-highlight-window (selected-window) | |
3008 | isearch-lazy-highlight-window-start (window-start) | |
3009 | isearch-lazy-highlight-window-end (window-end) | |
54d9de11 JL |
3010 | ;; Start lazy-highlighting at the beginning of the found |
3011 | ;; match (`isearch-other-end'). If no match, use point. | |
3012 | ;; One of the next two variables (depending on search direction) | |
3013 | ;; is used to define the starting position of lazy-highlighting | |
3014 | ;; and also to remember the current position of point between | |
3015 | ;; calls of `isearch-lazy-highlight-update', and another variable | |
3016 | ;; is used to define where the wrapped search must stop. | |
3017 | isearch-lazy-highlight-start (or isearch-other-end (point)) | |
3018 | isearch-lazy-highlight-end (or isearch-other-end (point)) | |
30c62133 JL |
3019 | isearch-lazy-highlight-wrapped nil |
3020 | isearch-lazy-highlight-last-string isearch-string | |
3021 | isearch-lazy-highlight-case-fold-search isearch-case-fold-search | |
3022 | isearch-lazy-highlight-regexp isearch-regexp | |
63dd1c6f JL |
3023 | isearch-lazy-highlight-lax-whitespace isearch-lax-whitespace |
3024 | isearch-lazy-highlight-regexp-lax-whitespace isearch-regexp-lax-whitespace | |
30c62133 JL |
3025 | isearch-lazy-highlight-word isearch-word |
3026 | isearch-lazy-highlight-forward isearch-forward) | |
5f3a57c9 RS |
3027 | (unless (equal isearch-string "") |
3028 | (setq isearch-lazy-highlight-timer | |
c1bc6bb6 | 3029 | (run-with-idle-timer lazy-highlight-initial-delay nil |
30c62133 | 3030 | 'isearch-lazy-highlight-update))))) |
c982ab21 GM |
3031 | |
3032 | (defun isearch-lazy-highlight-search () | |
3033 | "Search ahead for the next or previous match, for lazy highlighting. | |
4b65254d | 3034 | Attempt to do the search exactly the way the pending Isearch would." |
83659220 JL |
3035 | (condition-case nil |
3036 | (let ((case-fold-search isearch-lazy-highlight-case-fold-search) | |
3037 | (isearch-regexp isearch-lazy-highlight-regexp) | |
7ce7717b | 3038 | (isearch-word isearch-lazy-highlight-word) |
826b3235 JL |
3039 | (isearch-lax-whitespace |
3040 | isearch-lazy-highlight-lax-whitespace) | |
3041 | (isearch-regexp-lax-whitespace | |
3042 | isearch-lazy-highlight-regexp-lax-whitespace) | |
3043 | (isearch-forward isearch-lazy-highlight-forward) | |
83659220 JL |
3044 | (search-invisible nil) ; don't match invisible text |
3045 | (retry t) | |
3046 | (success nil) | |
e54a1075 | 3047 | (bound (if isearch-lazy-highlight-forward |
83659220 JL |
3048 | (min (or isearch-lazy-highlight-end-limit (point-max)) |
3049 | (if isearch-lazy-highlight-wrapped | |
3050 | isearch-lazy-highlight-start | |
3051 | (window-end))) | |
3052 | (max (or isearch-lazy-highlight-start-limit (point-min)) | |
ba653a53 | 3053 | (if isearch-lazy-highlight-wrapped |
83659220 JL |
3054 | isearch-lazy-highlight-end |
3055 | (window-start)))))) | |
2f669fac | 3056 | ;; Use a loop like in `isearch-search'. |
83659220 JL |
3057 | (while retry |
3058 | (setq success (isearch-search-string | |
3059 | isearch-lazy-highlight-last-string bound t)) | |
2f669fac JL |
3060 | ;; Clear RETRY unless the search predicate says |
3061 | ;; to skip this search hit. | |
83659220 | 3062 | (if (or (not success) |
27dd3c11 JL |
3063 | (= (point) bound) ; like (bobp) (eobp) in `isearch-search'. |
3064 | (= (match-beginning 0) (match-end 0)) | |
dc6c0eda SM |
3065 | (funcall isearch-filter-predicate |
3066 | (match-beginning 0) (match-end 0))) | |
83659220 JL |
3067 | (setq retry nil))) |
3068 | success) | |
3069 | (error nil))) | |
44336afb GM |
3070 | |
3071 | (defun isearch-lazy-highlight-update () | |
c982ab21 | 3072 | "Update highlighting of other matches for current search." |
c1bc6bb6 | 3073 | (let ((max lazy-highlight-max-at-a-time) |
c982ab21 GM |
3074 | (looping t) |
3075 | nomore) | |
6ee8e621 JL |
3076 | (with-local-quit |
3077 | (save-selected-window | |
3078 | (if (and (window-live-p isearch-lazy-highlight-window) | |
3079 | (not (eq (selected-window) isearch-lazy-highlight-window))) | |
3080 | (select-window isearch-lazy-highlight-window)) | |
3081 | (save-excursion | |
3082 | (save-match-data | |
e54a1075 | 3083 | (goto-char (if isearch-lazy-highlight-forward |
6ee8e621 JL |
3084 | isearch-lazy-highlight-end |
3085 | isearch-lazy-highlight-start)) | |
3086 | (while looping | |
3087 | (let ((found (isearch-lazy-highlight-search))) | |
3088 | (when max | |
3089 | (setq max (1- max)) | |
3090 | (if (<= max 0) | |
3091 | (setq looping nil))) | |
3092 | (if found | |
3093 | (let ((mb (match-beginning 0)) | |
3094 | (me (match-end 0))) | |
3095 | (if (= mb me) ;zero-length match | |
e54a1075 | 3096 | (if isearch-lazy-highlight-forward |
6ee8e621 JL |
3097 | (if (= mb (if isearch-lazy-highlight-wrapped |
3098 | isearch-lazy-highlight-start | |
3099 | (window-end))) | |
3100 | (setq found nil) | |
3101 | (forward-char 1)) | |
3102 | (if (= mb (if isearch-lazy-highlight-wrapped | |
3103 | isearch-lazy-highlight-end | |
3104 | (window-start))) | |
3105 | (setq found nil) | |
3106 | (forward-char -1))) | |
3107 | ||
3108 | ;; non-zero-length match | |
3109 | (let ((ov (make-overlay mb me))) | |
3110 | (push ov isearch-lazy-highlight-overlays) | |
704d3ae7 JL |
3111 | ;; 1000 is higher than ediff's 100+, |
3112 | ;; but lower than isearch main overlay's 1001 | |
3113 | (overlay-put ov 'priority 1000) | |
46fe9018 | 3114 | (overlay-put ov 'face lazy-highlight-face) |
6ee8e621 | 3115 | (overlay-put ov 'window (selected-window)))) |
54d9de11 JL |
3116 | ;; Remember the current position of point for |
3117 | ;; the next call of `isearch-lazy-highlight-update' | |
3118 | ;; when `lazy-highlight-max-at-a-time' is too small. | |
e54a1075 | 3119 | (if isearch-lazy-highlight-forward |
6ee8e621 JL |
3120 | (setq isearch-lazy-highlight-end (point)) |
3121 | (setq isearch-lazy-highlight-start (point))))) | |
3122 | ||
3123 | ;; not found or zero-length match at the search bound | |
3124 | (if (not found) | |
3125 | (if isearch-lazy-highlight-wrapped | |
3126 | (setq looping nil | |
3127 | nomore t) | |
3128 | (setq isearch-lazy-highlight-wrapped t) | |
e54a1075 | 3129 | (if isearch-lazy-highlight-forward |
6ee8e621 JL |
3130 | (progn |
3131 | (setq isearch-lazy-highlight-end (window-start)) | |
f9114cec RS |
3132 | (goto-char (max (or isearch-lazy-highlight-start-limit (point-min)) |
3133 | (window-start)))) | |
6ee8e621 | 3134 | (setq isearch-lazy-highlight-start (window-end)) |
f9114cec RS |
3135 | (goto-char (min (or isearch-lazy-highlight-end-limit (point-max)) |
3136 | (window-end)))))))) | |
6ee8e621 JL |
3137 | (unless nomore |
3138 | (setq isearch-lazy-highlight-timer | |
2c987fc2 | 3139 | (run-at-time lazy-highlight-interval nil |
6ee8e621 | 3140 | 'isearch-lazy-highlight-update))))))))) |
44336afb | 3141 | |
72a69d7f | 3142 | (defun isearch-resume (string regexp word forward message case-fold) |
c40a4de1 | 3143 | "Resume an incremental search. |
72a69d7f | 3144 | STRING is the string or regexp searched for. |
c40a4de1 GM |
3145 | REGEXP non-nil means the resumed search was a regexp search. |
3146 | WORD non-nil means resume a word search. | |
3147 | FORWARD non-nil means resume a forward search. | |
3148 | MESSAGE is the echo-area message recorded for the search resumed. | |
3149 | CASE-FOLD non-nil means the search was case-insensitive." | |
3150 | (isearch-mode forward regexp nil nil word) | |
72a69d7f | 3151 | (setq isearch-string string |
c40a4de1 GM |
3152 | isearch-message message |
3153 | isearch-case-fold-search case-fold) | |
72a69d7f JL |
3154 | (isearch-search) |
3155 | (isearch-update)) | |
191f025a | 3156 | |
3b1e4dd1 | 3157 | ;;; isearch.el ends here |