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55535639 | 1 | ;;; isearch.el --- incremental search minor mode |
3b1e4dd1 | 2 | |
95df8112 | 3 | ;; Copyright (C) 1992-1997, 1999-2011 Free Software Foundation, Inc. |
3a801d0c | 4 | |
3b1e4dd1 | 5 | ;; Author: Daniel LaLiberte <liberte@cs.uiuc.edu> |
0f09b616 | 6 | ;; Maintainer: FSF |
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 | |
50 | ;; exits and does a nonincremental search. | |
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 RS |
59 | |
60 | \f | |
191f025a | 61 | ;; Some additional options and constants. |
08200510 | 62 | |
9c1db929 RS |
63 | (defgroup isearch nil |
64 | "Incremental search minor mode." | |
117132a6 DL |
65 | :link '(emacs-commentary-link "isearch") |
66 | :link '(custom-manual "(emacs)Incremental Search") | |
9c1db929 RS |
67 | :prefix "isearch-" |
68 | :prefix "search-" | |
69 | :group 'matching) | |
fdf5afa4 | 70 | |
9c1db929 RS |
71 | |
72 | (defcustom search-exit-option t | |
4b65254d | 73 | "Non-nil means random control characters terminate incremental search." |
9c1db929 RS |
74 | :type 'boolean |
75 | :group 'isearch) | |
76 | ||
77 | (defcustom search-slow-window-lines 1 | |
4b65254d | 78 | "Number of lines in slow search display windows. |
fdf5afa4 RS |
79 | These are the short windows used during incremental search on slow terminals. |
80 | Negative means put the slow search window at the top (normally it's at bottom) | |
9c1db929 RS |
81 | and the value is minus the number of lines." |
82 | :type 'integer | |
83 | :group 'isearch) | |
fdf5afa4 | 84 | |
9c1db929 | 85 | (defcustom search-slow-speed 1200 |
4b65254d | 86 | "Highest terminal speed at which to use \"slow\" style incremental search. |
fdf5afa4 | 87 | This is the style where a one-line window is created to show the line |
9c1db929 RS |
88 | that the search has reached." |
89 | :type 'integer | |
90 | :group 'isearch) | |
8e1cae6d | 91 | |
9c1db929 | 92 | (defcustom search-upper-case 'not-yanks |
4b65254d | 93 | "If non-nil, upper case chars disable case fold searching. |
08200510 RS |
94 | That is, upper and lower case chars must match exactly. |
95 | This applies no matter where the chars come from, but does not | |
fdf5afa4 | 96 | apply to chars in regexps that are prefixed with `\\'. |
6e3057bb JL |
97 | If this value is `not-yanks', text yanked into the search string |
98 | in Isearch mode is always downcased." | |
9c1db929 RS |
99 | :type '(choice (const :tag "off" nil) |
100 | (const not-yanks) | |
5786b3ed | 101 | (other :tag "on" t)) |
9c1db929 | 102 | :group 'isearch) |
8e1cae6d | 103 | |
9c1db929 | 104 | (defcustom search-nonincremental-instead t |
4b65254d | 105 | "If non-nil, do a nonincremental search instead if exiting immediately. |
08200510 | 106 | Actually, `isearch-edit-string' is called to let you enter the search |
9c1db929 RS |
107 | string, and RET terminates editing and does a nonincremental search." |
108 | :type 'boolean | |
109 | :group 'isearch) | |
8e1cae6d | 110 | |
1e8780b1 | 111 | (defcustom search-whitespace-regexp (purecopy "\\s-+") |
4b65254d | 112 | "If non-nil, regular expression to match a sequence of whitespace chars. |
e2b992cb | 113 | This applies to regular expression incremental search. |
ab67e8b6 RS |
114 | When you put a space or spaces in the incremental regexp, it stands for |
115 | this, unless it is inside of a regexp construct such as [...] or *, + or ?. | |
116 | You might want to use something like \"[ \\t\\r\\n]+\" instead. | |
117 | In the Customization buffer, that is `[' followed by a space, | |
51a77cba RS |
118 | a tab, a carriage return (control-M), a newline, and `]+'. |
119 | ||
120 | When this is nil, each space you type matches literally, against one space." | |
121 | :type '(choice (const :tag "Find Spaces Literally" nil) | |
122 | regexp) | |
9c1db929 | 123 | :group 'isearch) |
8e1cae6d | 124 | |
0352b205 RS |
125 | (defcustom search-invisible 'open |
126 | "If t incremental search can match hidden text. | |
6480c508 JB |
127 | A nil value means don't match invisible text. |
128 | When the value is `open', if the text matched is made invisible by | |
0352b205 RS |
129 | an overlay having an `invisible' property and that overlay has a property |
130 | `isearch-open-invisible', then incremental search will show the contents. | |
cd59ea72 SM |
131 | \(This applies when using `outline.el' and `hideshow.el'.) |
132 | See also `reveal-mode' if you want overlays to automatically be opened | |
133 | whenever point is in one of them." | |
0352b205 RS |
134 | :type '(choice (const :tag "Match hidden text" t) |
135 | (const :tag "Open overlays" open) | |
79c7a4fa | 136 | (const :tag "Don't match hidden text" nil)) |
0352b205 RS |
137 | :group 'isearch) |
138 | ||
139 | (defcustom isearch-hide-immediately t | |
68c18d6d RS |
140 | "If non-nil, re-hide an invisible match right away. |
141 | This variable makes a difference when `search-invisible' is set to `open'. | |
142 | It means that after search makes some invisible text visible | |
143 | to show the match, it makes the text invisible again when the match moves. | |
b48ca14f JB |
144 | Ordinarily the text becomes invisible again at the end of the search." |
145 | :type 'boolean | |
0352b205 | 146 | :group 'isearch) |
86bfaffe | 147 | |
00098b01 | 148 | (defcustom isearch-resume-in-command-history nil |
4b65254d JB |
149 | "If non-nil, `isearch-resume' commands are added to the command history. |
150 | This allows you to resume earlier Isearch sessions through the | |
00098b01 | 151 | command history." |
6848c9f1 KS |
152 | :type 'boolean |
153 | :group 'isearch) | |
154 | ||
08200510 RS |
155 | (defvar isearch-mode-hook nil |
156 | "Function(s) to call after starting up an incremental search.") | |
157 | ||
a6020335 MH |
158 | (defvar isearch-update-post-hook nil |
159 | "Function(s) to call after isearch has found matches in the buffer.") | |
160 | ||
08200510 | 161 | (defvar isearch-mode-end-hook nil |
87e97673 RS |
162 | "Function(s) to call after terminating an incremental search. |
163 | When these functions are called, `isearch-mode-end-hook-quit' | |
4974aba8 | 164 | is non-nil if the user quits the search.") |
87e97673 RS |
165 | |
166 | (defvar isearch-mode-end-hook-quit nil | |
4974aba8 | 167 | "Non-nil while running `isearch-mode-end-hook' if the user quits the search.") |
08200510 | 168 | |
ac475d3a JL |
169 | (defvar isearch-message-function nil |
170 | "Function to call to display the search prompt. | |
171 | If nil, use `isearch-message'.") | |
172 | ||
6a18e4e7 JL |
173 | (defvar isearch-wrap-function nil |
174 | "Function to call to wrap the search when search is failed. | |
175 | If nil, move point to the beginning of the buffer for a forward search, | |
176 | or to the end of the buffer for a backward search.") | |
177 | ||
178 | (defvar isearch-push-state-function nil | |
4b65254d | 179 | "Function to save a function restoring the mode-specific Isearch state |
6a18e4e7 JL |
180 | to the search status stack.") |
181 | ||
f2fd3261 | 182 | (defvar isearch-filter-predicate 'isearch-filter-visible |
2f669fac JL |
183 | "Predicate that filters the search hits that would normally be available. |
184 | Search hits that dissatisfy the predicate are skipped. The function | |
185 | has two arguments: the positions of start and end of text matched by | |
186 | the search. If this function returns nil, continue searching without | |
187 | stopping at this match.") | |
5e189f39 | 188 | |
191f025a | 189 | ;; Search ring. |
8e1cae6d JB |
190 | |
191 | (defvar search-ring nil | |
192 | "List of search string sequences.") | |
08200510 | 193 | (defvar regexp-search-ring nil |
8e1cae6d JB |
194 | "List of regular expression search string sequences.") |
195 | ||
9c1db929 | 196 | (defcustom search-ring-max 16 |
4b65254d | 197 | "Maximum length of search ring before oldest elements are thrown away." |
9c1db929 RS |
198 | :type 'integer |
199 | :group 'isearch) | |
200 | (defcustom regexp-search-ring-max 16 | |
4b65254d | 201 | "Maximum length of regexp search ring before oldest elements are thrown away." |
9c1db929 RS |
202 | :type 'integer |
203 | :group 'isearch) | |
8e1cae6d JB |
204 | |
205 | (defvar search-ring-yank-pointer nil | |
a5dcf63f | 206 | "Index in `search-ring' of last string reused. |
6480c508 | 207 | It is nil if none yet.") |
08200510 | 208 | (defvar regexp-search-ring-yank-pointer nil |
a5dcf63f | 209 | "Index in `regexp-search-ring' of last string reused. |
6480c508 | 210 | It is nil if none yet.") |
8e1cae6d | 211 | |
9c1db929 | 212 | (defcustom search-ring-update nil |
4b65254d | 213 | "Non-nil if advancing or retreating in the search ring should cause search. |
9c1db929 RS |
214 | Default value, nil, means edit the string instead." |
215 | :type 'boolean | |
216 | :group 'isearch) | |
08200510 | 217 | |
bca92193 JL |
218 | ;;; isearch highlight customization. |
219 | ||
220 | (defcustom search-highlight t | |
4b65254d | 221 | "Non-nil means incremental search highlights the current match." |
bca92193 JL |
222 | :type 'boolean |
223 | :group 'isearch) | |
224 | ||
225 | (defface isearch | |
226 | '((((class color) (min-colors 88) (background light)) | |
227 | ;; The background must not be too dark, for that means | |
228 | ;; the character is hard to see when the cursor is there. | |
a49ff341 | 229 | (:background "magenta3" :foreground "lightskyblue1")) |
bca92193 JL |
230 | (((class color) (min-colors 88) (background dark)) |
231 | (:background "palevioletred2" :foreground "brown4")) | |
232 | (((class color) (min-colors 16)) | |
233 | (:background "magenta4" :foreground "cyan1")) | |
234 | (((class color) (min-colors 8)) | |
235 | (:background "magenta4" :foreground "cyan1")) | |
236 | (t (:inverse-video t))) | |
237 | "Face for highlighting Isearch matches." | |
92cc4a30 JL |
238 | :group 'isearch |
239 | :group 'basic-faces) | |
4be520fb | 240 | (defvar isearch-face 'isearch) |
bca92193 | 241 | |
d8891294 JL |
242 | (defface isearch-fail |
243 | '((((class color) (min-colors 88) (background light)) | |
244 | (:background "RosyBrown1")) | |
245 | (((class color) (min-colors 88) (background dark)) | |
246 | (:background "red4")) | |
247 | (((class color) (min-colors 16)) | |
248 | (:background "red")) | |
249 | (((class color) (min-colors 8)) | |
250 | (:background "red")) | |
251 | (((class color grayscale)) | |
252 | :foreground "grey") | |
253 | (t (:inverse-video t))) | |
723e5b84 | 254 | "Face for highlighting failed part in Isearch echo-area message." |
d8891294 | 255 | :version "23.1" |
723e5b84 BG |
256 | :group 'isearch) |
257 | ||
bca92193 | 258 | (defcustom isearch-lazy-highlight t |
4b65254d | 259 | "Controls the lazy-highlighting during incremental search. |
bca92193 JL |
260 | When non-nil, all text in the buffer matching the current search |
261 | string is highlighted lazily (see `lazy-highlight-initial-delay' | |
262 | and `lazy-highlight-interval')." | |
263 | :type 'boolean | |
264 | :group 'lazy-highlight | |
265 | :group 'isearch) | |
266 | ||
c1bc6bb6 | 267 | ;;; Lazy highlight customization. |
bca92193 | 268 | |
c1bc6bb6 RS |
269 | (defgroup lazy-highlight nil |
270 | "Lazy highlighting feature for matching strings." | |
271 | :prefix "lazy-highlight-" | |
272 | :version "21.1" | |
273 | :group 'isearch | |
bca92193 | 274 | :group 'matching) |
c1bc6bb6 | 275 | |
af3ccb5c GM |
276 | (define-obsolete-variable-alias 'isearch-lazy-highlight-cleanup |
277 | 'lazy-highlight-cleanup | |
278 | "22.1") | |
279 | ||
c1bc6bb6 | 280 | (defcustom lazy-highlight-cleanup t |
4b65254d | 281 | "Controls whether to remove extra highlighting after a search. |
c1bc6bb6 | 282 | If this is nil, extra highlighting can be \"manually\" removed with |
46fe9018 | 283 | \\[lazy-highlight-cleanup]." |
c1bc6bb6 RS |
284 | :type 'boolean |
285 | :group 'lazy-highlight) | |
af3ccb5c GM |
286 | |
287 | (define-obsolete-variable-alias 'isearch-lazy-highlight-initial-delay | |
288 | 'lazy-highlight-initial-delay | |
6480c508 | 289 | "22.1") |
c1bc6bb6 RS |
290 | |
291 | (defcustom lazy-highlight-initial-delay 0.25 | |
4b65254d | 292 | "Seconds to wait before beginning to lazily highlight all matches." |
c1bc6bb6 RS |
293 | :type 'number |
294 | :group 'lazy-highlight) | |
af3ccb5c GM |
295 | |
296 | (define-obsolete-variable-alias 'isearch-lazy-highlight-interval | |
297 | 'lazy-highlight-interval | |
6480c508 | 298 | "22.1") |
c1bc6bb6 RS |
299 | |
300 | (defcustom lazy-highlight-interval 0 ; 0.0625 | |
4b65254d | 301 | "Seconds between lazily highlighting successive matches." |
c1bc6bb6 RS |
302 | :type 'number |
303 | :group 'lazy-highlight) | |
af3ccb5c GM |
304 | |
305 | (define-obsolete-variable-alias 'isearch-lazy-highlight-max-at-a-time | |
306 | 'lazy-highlight-max-at-a-time | |
6480c508 | 307 | "22.1") |
c1bc6bb6 RS |
308 | |
309 | (defcustom lazy-highlight-max-at-a-time 20 | |
4b65254d JB |
310 | "Maximum matches to highlight at a time (for `lazy-highlight'). |
311 | Larger values may reduce Isearch's responsiveness to user input; | |
c1bc6bb6 RS |
312 | smaller values make matches highlight slowly. |
313 | A value of nil means highlight all matches." | |
314 | :type '(choice (const :tag "All" nil) | |
315 | (integer :tag "Some")) | |
316 | :group 'lazy-highlight) | |
317 | ||
e3cde0c7 | 318 | (defface lazy-highlight |
c1bc6bb6 RS |
319 | '((((class color) (min-colors 88) (background light)) |
320 | (:background "paleturquoise")) | |
321 | (((class color) (min-colors 88) (background dark)) | |
322 | (:background "paleturquoise4")) | |
323 | (((class color) (min-colors 16)) | |
324 | (:background "turquoise3")) | |
325 | (((class color) (min-colors 8)) | |
326 | (:background "turquoise3")) | |
327 | (t (:underline t))) | |
328 | "Face for lazy highlighting of matches other than the current one." | |
92cc4a30 JL |
329 | :group 'lazy-highlight |
330 | :group 'basic-faces) | |
c4f6e489 | 331 | (define-obsolete-face-alias 'isearch-lazy-highlight-face 'lazy-highlight "22.1") |
6480c508 JB |
332 | (define-obsolete-variable-alias 'isearch-lazy-highlight-face |
333 | 'lazy-highlight-face | |
334 | "22.1") | |
af3ccb5c | 335 | (defvar lazy-highlight-face 'lazy-highlight) |
c1bc6bb6 | 336 | \f |
b92368b4 JL |
337 | ;; Define isearch help map. |
338 | ||
339 | (defvar isearch-help-map | |
4b65254d | 340 | (let ((map (make-sparse-keymap))) |
b92368b4 JL |
341 | (define-key map [t] 'isearch-other-control-char) |
342 | (define-key map (char-to-string help-char) 'isearch-help-for-help) | |
343 | (define-key map [help] 'isearch-help-for-help) | |
344 | (define-key map [f1] 'isearch-help-for-help) | |
345 | (define-key map "?" 'isearch-help-for-help) | |
346 | (define-key map "b" 'isearch-describe-bindings) | |
347 | (define-key map "k" 'isearch-describe-key) | |
348 | (define-key map "m" 'isearch-describe-mode) | |
349 | (define-key map "q" 'help-quit) | |
350 | map) | |
4b65254d | 351 | "Keymap for characters following the Help key for Isearch mode.") |
b92368b4 JL |
352 | |
353 | (eval-when-compile (require 'help-macro)) | |
354 | ||
355 | (make-help-screen isearch-help-for-help-internal | |
ce9a0ccb | 356 | (purecopy "Type a help option: [bkm] or ?") |
b92368b4 JL |
357 | "You have typed %THIS-KEY%, the help character. Type a Help option: |
358 | \(Type \\<help-map>\\[help-quit] to exit the Help command.) | |
359 | ||
4b65254d JB |
360 | b Display all Isearch key bindings. |
361 | k KEYS Display full documentation of Isearch key sequence. | |
362 | m Display documentation of Isearch mode. | |
b92368b4 JL |
363 | |
364 | You can't type here other help keys available in the global help map, | |
4b65254d JB |
365 | but outside of this help window when you type them in Isearch mode, |
366 | they exit Isearch mode before displaying global help." | |
b92368b4 JL |
367 | isearch-help-map) |
368 | ||
369 | (defun isearch-help-for-help () | |
4b65254d | 370 | "Display Isearch help menu." |
b92368b4 JL |
371 | (interactive) |
372 | (let (same-window-buffer-names same-window-regexps) | |
373 | (isearch-help-for-help-internal)) | |
374 | (isearch-update)) | |
375 | ||
376 | (defun isearch-describe-bindings () | |
4b65254d JB |
377 | "Show a list of all keys defined in Isearch mode, and their definitions. |
378 | This is like `describe-bindings', but displays only Isearch keys." | |
b92368b4 JL |
379 | (interactive) |
380 | (let (same-window-buffer-names same-window-regexps) | |
381 | (with-help-window "*Help*" | |
382 | (with-current-buffer standard-output | |
383 | (princ "Isearch Mode Bindings:\n") | |
384 | (princ (substitute-command-keys "\\{isearch-mode-map}")))))) | |
385 | ||
386 | (defun isearch-describe-key () | |
387 | "Display documentation of the function invoked by isearch key." | |
388 | (interactive) | |
389 | (let (same-window-buffer-names same-window-regexps) | |
390 | (call-interactively 'describe-key)) | |
391 | (isearch-update)) | |
392 | ||
393 | (defun isearch-describe-mode () | |
4b65254d | 394 | "Display documentation of Isearch mode." |
b92368b4 JL |
395 | (interactive) |
396 | (let (same-window-buffer-names same-window-regexps) | |
397 | (describe-function 'isearch-forward)) | |
398 | (isearch-update)) | |
399 | ||
400 | (defalias 'isearch-mode-help 'isearch-describe-mode) | |
401 | ||
402 | \f | |
191f025a | 403 | ;; Define isearch-mode keymap. |
8e1cae6d | 404 | |
02b2f510 | 405 | (defvar isearch-mode-map |
4b65254d JB |
406 | (let ((i 0) |
407 | (map (make-keymap))) | |
8f924df7 | 408 | (or (char-table-p (nth 1 map)) |
02b2f510 SM |
409 | (error "The initialization of isearch-mode-map must be updated")) |
410 | ;; Make all multibyte characters search for themselves. | |
6b61353c | 411 | (set-char-table-range (nth 1 map) (cons #x100 (max-char)) |
5760cdc1 | 412 | 'isearch-printing-char) |
6b61353c KH |
413 | ;; Make function keys, etc, which aren't bound to a scrolling-function |
414 | ;; exit the search. | |
02b2f510 SM |
415 | (define-key map [t] 'isearch-other-control-char) |
416 | ;; Control chars, by default, end isearch mode transparently. | |
b48ca14f | 417 | ;; We need these explicit definitions because, in a dense keymap, |
02b2f510 SM |
418 | ;; the binding for t does not affect characters. |
419 | ;; We use a dense keymap to save space. | |
6480c508 | 420 | (while (< i ?\s) |
02b2f510 SM |
421 | (define-key map (make-string 1 i) 'isearch-other-control-char) |
422 | (setq i (1+ i))) | |
423 | ||
424 | ;; Single-byte printing chars extend the search string by default. | |
6480c508 | 425 | (setq i ?\s) |
02b2f510 SM |
426 | (while (< i 256) |
427 | (define-key map (vector i) 'isearch-printing-char) | |
428 | (setq i (1+ i))) | |
429 | ||
430 | ;; To handle local bindings with meta char prefix keys, define | |
431 | ;; another full keymap. This must be done for any other prefix | |
432 | ;; keys as well, one full keymap per char of the prefix key. It | |
433 | ;; would be simpler to disable the global keymap, and/or have a | |
434 | ;; default local key binding for any key not otherwise bound. | |
435 | (let ((meta-map (make-sparse-keymap))) | |
436 | (define-key map (char-to-string meta-prefix-char) meta-map) | |
437 | (define-key map [escape] meta-map)) | |
438 | (define-key map (vector meta-prefix-char t) 'isearch-other-meta-char) | |
439 | ||
440 | ;; Several non-printing chars change the searching behavior. | |
441 | (define-key map "\C-s" 'isearch-repeat-forward) | |
442 | (define-key map "\C-r" 'isearch-repeat-backward) | |
443 | ;; Define M-C-s and M-C-r like C-s and C-r so that the same key | |
444 | ;; combinations can be used to repeat regexp isearches that can | |
445 | ;; be used to start these searches. | |
446 | (define-key map "\M-\C-s" 'isearch-repeat-forward) | |
447 | (define-key map "\M-\C-r" 'isearch-repeat-backward) | |
448 | (define-key map "\177" 'isearch-delete-char) | |
449 | (define-key map "\C-g" 'isearch-abort) | |
1f4139d5 | 450 | |
02b2f510 SM |
451 | ;; This assumes \e is the meta-prefix-char. |
452 | (or (= ?\e meta-prefix-char) | |
453 | (error "Inconsistency in isearch.el")) | |
454 | (define-key map "\e\e\e" 'isearch-cancel) | |
455 | (define-key map [escape escape escape] 'isearch-cancel) | |
b48ca14f | 456 | |
02b2f510 | 457 | (define-key map "\C-q" 'isearch-quote-char) |
08200510 | 458 | |
02b2f510 SM |
459 | (define-key map "\r" 'isearch-exit) |
460 | (define-key map "\C-j" 'isearch-printing-char) | |
461 | (define-key map "\t" 'isearch-printing-char) | |
ec06d344 | 462 | (define-key map [?\S-\ ] 'isearch-printing-char) |
b48ca14f | 463 | |
74820eb5 JL |
464 | (define-key map "\C-w" 'isearch-yank-word-or-char) |
465 | (define-key map "\M-\C-w" 'isearch-del-char) | |
466 | (define-key map "\M-\C-y" 'isearch-yank-char) | |
892777ba CY |
467 | (define-key map "\C-y" 'isearch-yank-kill) |
468 | (define-key map "\M-s\C-e" 'isearch-yank-line) | |
08200510 | 469 | |
50de6a38 JL |
470 | (define-key map (char-to-string help-char) isearch-help-map) |
471 | (define-key map [help] isearch-help-map) | |
472 | (define-key map [f1] isearch-help-map) | |
08200510 | 473 | |
02b2f510 SM |
474 | (define-key map "\M-n" 'isearch-ring-advance) |
475 | (define-key map "\M-p" 'isearch-ring-retreat) | |
25666126 | 476 | (define-key map "\M-y" 'isearch-yank-pop) |
02b2f510 SM |
477 | |
478 | (define-key map "\M-\t" 'isearch-complete) | |
479 | ||
480 | ;; Pass frame events transparently so they won't exit the search. | |
481 | ;; In particular, if we have more than one display open, then a | |
482 | ;; switch-frame might be generated by someone typing at another keyboard. | |
483 | (define-key map [switch-frame] nil) | |
484 | (define-key map [delete-frame] nil) | |
485 | (define-key map [iconify-frame] nil) | |
486 | (define-key map [make-frame-visible] nil) | |
3f482bc0 | 487 | (define-key map [mouse-movement] nil) |
76197e28 JR |
488 | (define-key map [language-change] nil) |
489 | ||
02b2f510 SM |
490 | ;; For searching multilingual text. |
491 | (define-key map "\C-\\" 'isearch-toggle-input-method) | |
492 | (define-key map "\C-^" 'isearch-toggle-specified-input-method) | |
493 | ||
494 | ;; People expect to be able to paste with the mouse. | |
e4af1426 | 495 | (define-key map [mouse-2] #'isearch-mouse-2) |
02b2f510 SM |
496 | (define-key map [down-mouse-2] nil) |
497 | ||
498 | ;; Some bindings you may want to put in your isearch-mode-hook. | |
499 | ;; Suggest some alternates... | |
500 | (define-key map "\M-c" 'isearch-toggle-case-fold) | |
501 | (define-key map "\M-r" 'isearch-toggle-regexp) | |
502 | (define-key map "\M-e" 'isearch-edit-string) | |
503 | ||
70bc5268 JL |
504 | (define-key map "\M-sr" 'isearch-toggle-regexp) |
505 | (define-key map "\M-sw" 'isearch-toggle-word) | |
506 | ||
81e898ea SM |
507 | (define-key map [?\M-%] 'isearch-query-replace) |
508 | (define-key map [?\C-\M-%] 'isearch-query-replace-regexp) | |
6e3057bb | 509 | (define-key map "\M-so" 'isearch-occur) |
11c9f489 | 510 | (define-key map "\M-shr" 'isearch-highlight-regexp) |
74820eb5 | 511 | |
02b2f510 SM |
512 | map) |
513 | "Keymap for `isearch-mode'.") | |
514 | ||
515 | (defvar minibuffer-local-isearch-map | |
516 | (let ((map (make-sparse-keymap))) | |
517 | (set-keymap-parent map minibuffer-local-map) | |
74820eb5 | 518 | (define-key map "\r" 'isearch-nonincremental-exit-minibuffer) |
02b2f510 | 519 | (define-key map "\M-\t" 'isearch-complete-edit) |
74820eb5 JL |
520 | (define-key map "\C-s" 'isearch-forward-exit-minibuffer) |
521 | (define-key map "\C-r" 'isearch-reverse-exit-minibuffer) | |
522 | (define-key map "\C-f" 'isearch-yank-char-in-minibuffer) | |
523 | (define-key map [right] 'isearch-yank-char-in-minibuffer) | |
02b2f510 | 524 | map) |
4b65254d | 525 | "Keymap for editing Isearch strings in the minibuffer.") |
8e1cae6d | 526 | |
8e1cae6d | 527 | ;; Internal variables declared globally for byte-compiler. |
08200510 RS |
528 | ;; These are all set with setq while isearching |
529 | ;; and bound locally while editing the search string. | |
530 | ||
531 | (defvar isearch-forward nil) ; Searching in the forward direction. | |
532 | (defvar isearch-regexp nil) ; Searching for a regexp. | |
533 | (defvar isearch-word nil) ; Searching for words. | |
cd59ea72 | 534 | (defvar isearch-hidden nil) ; Non-nil if the string exists but is invisible. |
08200510 | 535 | |
191f025a SM |
536 | (defvar isearch-cmds nil |
537 | "Stack of search status sets. | |
08e3de69 EZ |
538 | Each set is a vector of the form: |
539 | [STRING MESSAGE POINT SUCCESS FORWARD OTHER-END WORD | |
540 | INVALID-REGEXP WRAPPED BARRIER WITHIN-BRACKETS CASE-FOLD-SEARCH]") | |
191f025a | 541 | |
08200510 RS |
542 | (defvar isearch-string "") ; The current search string. |
543 | (defvar isearch-message "") ; text-char-description version of isearch-string | |
544 | ||
ee9b85a8 JL |
545 | (defvar isearch-message-prefix-add nil) ; Additonal text for the message prefix |
546 | (defvar isearch-message-suffix-add nil) ; Additonal text for the message suffix | |
547 | ||
ba653a53 JL |
548 | (defvar isearch-success t) ; Searching is currently successful. |
549 | (defvar isearch-error nil) ; Error message for failed search. | |
08200510 RS |
550 | (defvar isearch-other-end nil) ; Start (end) of match if forward (backward). |
551 | (defvar isearch-wrapped nil) ; Searching restarted from the top (bottom). | |
478615cc LMI |
552 | (defvar isearch-barrier 0 |
553 | "Recorded minimum/maximal point for the current search.") | |
99ae9e9f | 554 | (defvar isearch-just-started nil) |
ddbe3d5f | 555 | (defvar isearch-start-hscroll 0) ; hscroll when starting the search. |
8e1cae6d | 556 | |
00c42405 SM |
557 | ;; case-fold-search while searching. |
558 | ;; either nil, t, or 'yes. 'yes means the same as t except that mixed | |
559 | ;; case in the search string is ignored. | |
4453091d | 560 | (defvar isearch-case-fold-search nil) |
8e1cae6d | 561 | |
67085aba GM |
562 | (defvar isearch-last-case-fold-search nil) |
563 | ||
ae1a21c6 MB |
564 | ;; Used to save default value while isearch is active |
565 | (defvar isearch-original-minibuffer-message-timeout nil) | |
566 | ||
8e1cae6d JB |
567 | (defvar isearch-adjusted nil) |
568 | (defvar isearch-slow-terminal-mode nil) | |
191f025a | 569 | ;; If t, using a small window. |
08200510 | 570 | (defvar isearch-small-window nil) |
8e1cae6d | 571 | (defvar isearch-opoint 0) |
191f025a | 572 | ;; The window configuration active at the beginning of the search. |
08200510 | 573 | (defvar isearch-window-configuration nil) |
8e1cae6d | 574 | |
08200510 RS |
575 | ;; Flag to indicate a yank occurred, so don't move the cursor. |
576 | (defvar isearch-yank-flag nil) | |
8e1cae6d | 577 | |
191f025a SM |
578 | ;; A function to be called after each input character is processed. |
579 | ;; (It is not called after characters that exit the search.) | |
580 | ;; It is only set from an optional argument to `isearch-mode'. | |
08200510 | 581 | (defvar isearch-op-fun nil) |
8e1cae6d | 582 | |
191f025a | 583 | ;; Is isearch-mode in a recursive edit for modal searching. |
08200510 | 584 | (defvar isearch-recursive-edit nil) |
8e1cae6d | 585 | |
191f025a | 586 | ;; Should isearch be terminated after doing one search? |
08200510 RS |
587 | (defvar isearch-nonincremental nil) |
588 | ||
589 | ;; New value of isearch-forward after isearch-edit-string. | |
590 | (defvar isearch-new-forward nil) | |
8e1cae6d | 591 | |
0352b205 RS |
592 | ;; Accumulate here the overlays opened during searching. |
593 | (defvar isearch-opened-overlays nil) | |
8e1cae6d | 594 | |
99848db0 KH |
595 | ;; The value of input-method-function when isearch is invoked. |
596 | (defvar isearch-input-method-function nil) | |
597 | ||
598 | ;; A flag to tell if input-method-function is locally bound when | |
599 | ;; isearch is invoked. | |
600 | (defvar isearch-input-method-local-p nil) | |
601 | ||
8e1cae6d JB |
602 | ;; Minor-mode-alist changes - kind of redundant with the |
603 | ;; echo area, but if isearching in multiple windows, it can be useful. | |
604 | ||
605 | (or (assq 'isearch-mode minor-mode-alist) | |
606 | (nconc minor-mode-alist | |
607 | (list '(isearch-mode isearch-mode)))) | |
608 | ||
08200510 | 609 | (defvar isearch-mode nil) ;; Name of the minor mode, if non-nil. |
8e1cae6d JB |
610 | (make-variable-buffer-local 'isearch-mode) |
611 | ||
fdf5afa4 RS |
612 | (define-key global-map "\C-s" 'isearch-forward) |
613 | (define-key esc-map "\C-s" 'isearch-forward-regexp) | |
614 | (define-key global-map "\C-r" 'isearch-backward) | |
615 | (define-key esc-map "\C-r" 'isearch-backward-regexp) | |
70bc5268 | 616 | (define-key search-map "w" 'isearch-forward-word) |
fdf5afa4 | 617 | |
191f025a | 618 | ;; Entry points to isearch-mode. |
8e1cae6d | 619 | |
eceee2c0 | 620 | (defun isearch-forward (&optional regexp-p no-recursive-edit) |
8e1cae6d JB |
621 | "\ |
622 | Do incremental search forward. | |
08200510 RS |
623 | With a prefix argument, do an incremental regular expression search instead. |
624 | \\<isearch-mode-map> | |
8e1cae6d | 625 | As you type characters, they add to the search string and are found. |
b48ca14f | 626 | The following non-printing keys are bound in `isearch-mode-map'. |
8e1cae6d | 627 | |
35904fd3 | 628 | Type \\[isearch-delete-char] to cancel last input item from end of search string. |
8e1cae6d | 629 | Type \\[isearch-exit] to exit, leaving point at location found. |
08200510 RS |
630 | Type LFD (C-j) to match end of line. |
631 | Type \\[isearch-repeat-forward] to search again forward,\ | |
632 | \\[isearch-repeat-backward] to search again backward. | |
0ae85960 RS |
633 | Type \\[isearch-yank-word-or-char] to yank next word or character in buffer |
634 | onto the end of the search string, and search for it. | |
74820eb5 JL |
635 | Type \\[isearch-del-char] to delete character from end of search string. |
636 | Type \\[isearch-yank-char] to yank char from buffer onto end of search\ | |
08200510 RS |
637 | string and search for it. |
638 | Type \\[isearch-yank-line] to yank rest of line onto end of search string\ | |
639 | and search for it. | |
75a07f2c | 640 | Type \\[isearch-yank-kill] to yank the last string of killed text. |
25666126 LL |
641 | Type \\[isearch-yank-pop] to replace string just yanked into search prompt |
642 | with string killed before it. | |
8e1cae6d | 643 | Type \\[isearch-quote-char] to quote control character to search for it. |
08200510 RS |
644 | \\[isearch-abort] while searching or when search has failed cancels input\ |
645 | back to what has | |
646 | been found successfully. | |
647 | \\[isearch-abort] when search is successful aborts and moves point to\ | |
648 | starting point. | |
8e1cae6d | 649 | |
b3612973 RS |
650 | If you try to exit with the search string still empty, it invokes |
651 | nonincremental search. | |
652 | ||
6c551d4e EZ |
653 | Type \\[isearch-toggle-case-fold] to toggle search case-sensitivity. |
654 | Type \\[isearch-toggle-regexp] to toggle regular-expression mode. | |
70bc5268 | 655 | Type \\[isearch-toggle-word] to toggle word mode. |
6c551d4e EZ |
656 | Type \\[isearch-edit-string] to edit the search string in the minibuffer. |
657 | ||
8e1cae6d JB |
658 | Also supported is a search ring of the previous 16 search strings. |
659 | Type \\[isearch-ring-advance] to search for the next item in the search ring. | |
08200510 RS |
660 | Type \\[isearch-ring-retreat] to search for the previous item in the search\ |
661 | ring. | |
662 | Type \\[isearch-complete] to complete the search string using the search ring. | |
8e1cae6d | 663 | |
70bc5268 JL |
664 | Type \\[isearch-query-replace] to run `query-replace' with string to\ |
665 | replace from last search string. | |
666 | Type \\[isearch-query-replace-regexp] to run `query-replace-regexp'\ | |
667 | with the last search string. | |
668 | Type \\[isearch-occur] to run `occur' that shows\ | |
669 | the last search string. | |
670 | Type \\[isearch-highlight-regexp] to run `highlight-regexp'\ | |
671 | that highlights the last search string. | |
672 | ||
4b65254d JB |
673 | Type \\[isearch-describe-bindings] to display all Isearch key bindings. |
674 | Type \\[isearch-describe-key] to display documentation of Isearch key. | |
675 | Type \\[isearch-describe-mode] to display documentation of Isearch mode. | |
b92368b4 | 676 | |
1e14b095 | 677 | If an input method is turned on in the current buffer, that input |
4b65254d JB |
678 | method is also active while you are typing characters to search. |
679 | To toggle the input method, type \\[isearch-toggle-input-method]. \ | |
680 | It also toggles the input | |
681 | method in the current buffer. | |
37b20c9b | 682 | |
4b65254d JB |
683 | To use a different input method for searching, type \ |
684 | \\[isearch-toggle-specified-input-method], | |
685 | and specify an input method you want to use. | |
37b20c9b | 686 | |
b48ca14f | 687 | The above keys, bound in `isearch-mode-map', are often controlled by |
35904fd3 | 688 | options; do \\[apropos] on search-.* to find them. |
8e1cae6d | 689 | Other control and meta characters terminate the search |
08200510 | 690 | and are then executed normally (depending on `search-exit-option'). |
fd49e05c | 691 | Likewise for function keys and mouse button events. |
8e1cae6d | 692 | |
08200510 RS |
693 | If this function is called non-interactively, it does not return to |
694 | the calling function until the search is done." | |
8e1cae6d | 695 | |
eceee2c0 | 696 | (interactive "P\np") |
4ae7d00a | 697 | (isearch-mode t (not (null regexp-p)) nil (not no-recursive-edit))) |
8e1cae6d | 698 | |
eceee2c0 | 699 | (defun isearch-forward-regexp (&optional not-regexp no-recursive-edit) |
8e1cae6d JB |
700 | "\ |
701 | Do incremental search forward for regular expression. | |
08200510 | 702 | With a prefix argument, do a regular string search instead. |
8938c0bc JL |
703 | Like ordinary incremental search except that your input is treated |
704 | as a regexp. See the command `isearch-forward' for more information. | |
ab67e8b6 RS |
705 | |
706 | In regexp incremental searches, a space or spaces normally matches | |
707 | any whitespace (the variable `search-whitespace-regexp' controls | |
708 | precisely what that means). If you want to search for a literal space | |
1b1fb2ef | 709 | and nothing else, enter C-q SPC." |
eceee2c0 | 710 | (interactive "P\np") |
4ae7d00a | 711 | (isearch-mode t (null not-regexp) nil (not no-recursive-edit))) |
8e1cae6d | 712 | |
70bc5268 JL |
713 | (defun isearch-forward-word (&optional not-word no-recursive-edit) |
714 | "\ | |
715 | Do incremental search forward for a sequence of words. | |
716 | With a prefix argument, do a regular string search instead. | |
8938c0bc JL |
717 | Like ordinary incremental search except that your input is treated |
718 | as a sequence of words without regard to how the words are separated. | |
719 | See the command `isearch-forward' for more information." | |
70bc5268 JL |
720 | (interactive "P\np") |
721 | (isearch-mode t nil nil (not no-recursive-edit) (null not-word))) | |
722 | ||
eceee2c0 | 723 | (defun isearch-backward (&optional regexp-p no-recursive-edit) |
8e1cae6d JB |
724 | "\ |
725 | Do incremental search backward. | |
08200510 | 726 | With a prefix argument, do a regular expression search instead. |
8938c0bc | 727 | See the command `isearch-forward' for more information." |
eceee2c0 | 728 | (interactive "P\np") |
4ae7d00a | 729 | (isearch-mode nil (not (null regexp-p)) nil (not no-recursive-edit))) |
8e1cae6d | 730 | |
eceee2c0 | 731 | (defun isearch-backward-regexp (&optional not-regexp no-recursive-edit) |
8e1cae6d JB |
732 | "\ |
733 | Do incremental search backward for regular expression. | |
08200510 | 734 | With a prefix argument, do a regular string search instead. |
8938c0bc JL |
735 | Like ordinary incremental search except that your input is treated |
736 | as a regexp. See the command `isearch-forward' for more information." | |
eceee2c0 | 737 | (interactive "P\np") |
4ae7d00a | 738 | (isearch-mode nil (null not-regexp) nil (not no-recursive-edit))) |
08200510 | 739 | |
8e1cae6d | 740 | \f |
8e1cae6d JB |
741 | ;; isearch-mode only sets up incremental search for the minor mode. |
742 | ;; All the work is done by the isearch-mode commands. | |
743 | ||
08200510 | 744 | ;; Not used yet: |
d7fa5aa2 | 745 | ;;(defvar isearch-commands '(isearch-forward isearch-backward |
08200510 RS |
746 | ;; isearch-forward-regexp isearch-backward-regexp) |
747 | ;; "List of commands for which isearch-mode does not recursive-edit.") | |
b48ca14f | 748 | |
08200510 RS |
749 | |
750 | (defun isearch-mode (forward &optional regexp op-fun recursive-edit word-p) | |
4b65254d | 751 | "Start Isearch minor mode. |
b92368b4 | 752 | It is called by the function `isearch-forward' and other related functions." |
8e1cae6d JB |
753 | |
754 | ;; Initialize global vars. | |
755 | (setq isearch-forward forward | |
756 | isearch-regexp regexp | |
08200510 | 757 | isearch-word word-p |
8e1cae6d | 758 | isearch-op-fun op-fun |
67085aba | 759 | isearch-last-case-fold-search isearch-case-fold-search |
8e1cae6d JB |
760 | isearch-case-fold-search case-fold-search |
761 | isearch-string "" | |
762 | isearch-message "" | |
763 | isearch-cmds nil | |
764 | isearch-success t | |
765 | isearch-wrapped nil | |
766 | isearch-barrier (point) | |
767 | isearch-adjusted nil | |
768 | isearch-yank-flag nil | |
ba653a53 | 769 | isearch-error nil |
0cabad13 | 770 | isearch-slow-terminal-mode (and (<= baud-rate search-slow-speed) |
8e1cae6d | 771 | (> (window-height) |
fad241d3 RS |
772 | (* 4 |
773 | (abs search-slow-window-lines)))) | |
8e1cae6d JB |
774 | isearch-other-end nil |
775 | isearch-small-window nil | |
99ae9e9f | 776 | isearch-just-started t |
ddbe3d5f | 777 | isearch-start-hscroll (window-hscroll) |
8e1cae6d | 778 | |
8e1cae6d | 779 | isearch-opoint (point) |
a5dcf63f | 780 | search-ring-yank-pointer nil |
0352b205 | 781 | isearch-opened-overlays nil |
99848db0 KH |
782 | isearch-input-method-function input-method-function |
783 | isearch-input-method-local-p (local-variable-p 'input-method-function) | |
ae1a21c6 MB |
784 | regexp-search-ring-yank-pointer nil |
785 | ||
786 | ;; Save the original value of `minibuffer-message-timeout', and | |
787 | ;; set it to nil so that isearch's messages don't get timed out. | |
788 | isearch-original-minibuffer-message-timeout minibuffer-message-timeout | |
789 | minibuffer-message-timeout nil) | |
99848db0 KH |
790 | |
791 | ;; We must bypass input method while reading key. When a user type | |
792 | ;; printable character, appropriate input method is turned on in | |
380866a2 | 793 | ;; minibuffer to read multibyte characters. |
99848db0 KH |
794 | (or isearch-input-method-local-p |
795 | (make-local-variable 'input-method-function)) | |
796 | (setq input-method-function nil) | |
797 | ||
99ae9e9f | 798 | (looking-at "") |
292a8dff RS |
799 | (setq isearch-window-configuration |
800 | (if isearch-slow-terminal-mode (current-window-configuration) nil)) | |
70418205 | 801 | |
18ce7555 RS |
802 | ;; Maybe make minibuffer frame visible and/or raise it. |
803 | (let ((frame (window-frame (minibuffer-window)))) | |
360e0dd5 RS |
804 | (unless (memq (frame-live-p frame) '(nil t)) |
805 | (unless (frame-visible-p frame) | |
806 | (make-frame-visible frame)) | |
807 | (if minibuffer-auto-raise | |
808 | (raise-frame frame)))) | |
18ce7555 | 809 | |
8e1cae6d | 810 | (setq isearch-mode " Isearch") ;; forward? regexp? |
1cd3732c | 811 | (force-mode-line-update) |
8e1cae6d | 812 | |
c7955222 | 813 | (setq overriding-terminal-local-map isearch-mode-map) |
8e1cae6d | 814 | (run-hooks 'isearch-mode-hook) |
40637410 JL |
815 | |
816 | ;; Pushing the initial state used to be before running isearch-mode-hook, | |
817 | ;; but a hook might set `isearch-push-state-function' used in | |
818 | ;; `isearch-push-state' to save mode-specific initial state. (Bug#4994) | |
819 | (isearch-push-state) | |
820 | ||
5ce25ae7 | 821 | (isearch-update) |
08200510 | 822 | |
bfe2d334 | 823 | (add-hook 'mouse-leave-buffer-hook 'isearch-done) |
7e56ea04 | 824 | (add-hook 'kbd-macro-termination-hook 'isearch-done) |
6e5cd0ae | 825 | |
b48ca14f JB |
826 | ;; isearch-mode can be made modal (in the sense of not returning to |
827 | ;; the calling function until searching is completed) by entering | |
08200510 | 828 | ;; a recursive-edit and exiting it when done isearching. |
130bf67c RS |
829 | (if recursive-edit |
830 | (let ((isearch-recursive-edit t)) | |
831 | (recursive-edit))) | |
0daa17f3 | 832 | isearch-success) |
8e1cae6d JB |
833 | |
834 | ||
8e1cae6d JB |
835 | ;; Some high level utilities. Others below. |
836 | ||
837 | (defun isearch-update () | |
191f025a | 838 | ;; Called after each command to update the display. |
4c01d4bd RS |
839 | (if (and (null unread-command-events) |
840 | (null executing-kbd-macro)) | |
8e1cae6d | 841 | (progn |
c982ab21 | 842 | (if (not (input-pending-p)) |
ac475d3a JL |
843 | (if isearch-message-function |
844 | (funcall isearch-message-function) | |
845 | (isearch-message))) | |
c982ab21 | 846 | (if (and isearch-slow-terminal-mode |
b48ca14f | 847 | (not (or isearch-small-window |
c982ab21 GM |
848 | (pos-visible-in-window-p)))) |
849 | (let ((found-point (point))) | |
850 | (setq isearch-small-window t) | |
851 | (move-to-window-line 0) | |
852 | (let ((window-min-height 1)) | |
853 | (split-window nil (if (< search-slow-window-lines 0) | |
854 | (1+ (- search-slow-window-lines)) | |
855 | (- (window-height) | |
856 | (1+ search-slow-window-lines))))) | |
857 | (if (< search-slow-window-lines 0) | |
858 | (progn (vertical-motion (- 1 search-slow-window-lines)) | |
859 | (set-window-start (next-window) (point)) | |
860 | (set-window-hscroll (next-window) | |
861 | (window-hscroll)) | |
862 | (set-window-hscroll (selected-window) 0)) | |
863 | (other-window 1)) | |
ddbe3d5f RS |
864 | (goto-char found-point)) |
865 | ;; Keep same hscrolling as at the start of the search when possible | |
866 | (let ((current-scroll (window-hscroll))) | |
867 | (set-window-hscroll (selected-window) isearch-start-hscroll) | |
868 | (unless (pos-visible-in-window-p) | |
869 | (set-window-hscroll (selected-window) current-scroll)))) | |
870 | (if isearch-other-end | |
c982ab21 GM |
871 | (if (< isearch-other-end (point)) ; isearch-forward? |
872 | (isearch-highlight isearch-other-end (point)) | |
873 | (isearch-highlight (point) isearch-other-end)) | |
4dbbcb46 | 874 | (isearch-dehighlight)) |
c982ab21 | 875 | )) |
8e1cae6d JB |
876 | (setq ;; quit-flag nil not for isearch-mode |
877 | isearch-adjusted nil | |
878 | isearch-yank-flag nil) | |
f9114cec | 879 | (when isearch-lazy-highlight |
d9dd1f33 | 880 | (isearch-lazy-highlight-new-loop)) |
a5cc922e KH |
881 | ;; We must prevent the point moving to the end of composition when a |
882 | ;; part of the composition has just been searched. | |
a6020335 MH |
883 | (setq disable-point-adjustment t) |
884 | (run-hooks 'isearch-update-post-hook)) | |
8e1cae6d | 885 | |
0daa17f3 | 886 | (defun isearch-done (&optional nopush edit) |
87e97673 RS |
887 | "Exit Isearch mode. |
888 | For successful search, pass no args. | |
889 | For a failing search, NOPUSH is t. | |
890 | For going to the minibuffer to edit the search string, | |
891 | NOPUSH is t and EDIT is t." | |
892 | ||
00098b01 | 893 | (if isearch-resume-in-command-history |
6848c9f1 KS |
894 | (let ((command `(isearch-resume ,isearch-string ,isearch-regexp |
895 | ,isearch-word ,isearch-forward | |
896 | ,isearch-message | |
897 | ',isearch-case-fold-search))) | |
898 | (unless (equal (car command-history) command) | |
899 | (setq command-history (cons command command-history))))) | |
c40a4de1 | 900 | |
bfe2d334 | 901 | (remove-hook 'mouse-leave-buffer-hook 'isearch-done) |
7e56ea04 | 902 | (remove-hook 'kbd-macro-termination-hook 'isearch-done) |
d196f58d GM |
903 | (setq isearch-lazy-highlight-start nil) |
904 | ||
8e1cae6d | 905 | ;; Called by all commands that terminate isearch-mode. |
35a4d143 | 906 | ;; If NOPUSH is non-nil, we don't push the string on the search ring. |
c7955222 | 907 | (setq overriding-terminal-local-map nil) |
08200510 | 908 | ;; (setq pre-command-hook isearch-old-pre-command-hook) ; for lemacs |
ae1a21c6 | 909 | (setq minibuffer-message-timeout isearch-original-minibuffer-message-timeout) |
4dbbcb46 | 910 | (isearch-dehighlight) |
46fe9018 | 911 | (lazy-highlight-cleanup lazy-highlight-cleanup) |
08200510 RS |
912 | (let ((found-start (window-start (selected-window))) |
913 | (found-point (point))) | |
d8a4fc44 RS |
914 | (when isearch-window-configuration |
915 | (set-window-configuration isearch-window-configuration) | |
916 | (if isearch-small-window | |
917 | (goto-char found-point) | |
918 | ;; set-window-configuration clobbers window-start; restore it. | |
919 | ;; This has an annoying side effect of clearing the last_modiff | |
920 | ;; field of the window, which can cause unwanted scrolling, | |
921 | ;; so don't do it unless truly necessary. | |
922 | (set-window-start (selected-window) found-start t)))) | |
08200510 RS |
923 | |
924 | (setq isearch-mode nil) | |
99848db0 KH |
925 | (if isearch-input-method-local-p |
926 | (setq input-method-function isearch-input-method-function) | |
927 | (kill-local-variable 'input-method-function)) | |
928 | ||
1cd3732c | 929 | (force-mode-line-update) |
8e1cae6d | 930 | |
df01192b RS |
931 | ;; If we ended in the middle of some intangible text, |
932 | ;; move to the further end of that intangible text. | |
933 | (let ((after (if (eobp) nil | |
934 | (get-text-property (point) 'intangible))) | |
935 | (before (if (bobp) nil | |
936 | (get-text-property (1- (point)) 'intangible)))) | |
937 | (when (and before after (eq before after)) | |
938 | (if isearch-forward | |
939 | (goto-char (next-single-property-change (point) 'intangible)) | |
940 | (goto-char (previous-single-property-change (point) 'intangible))))) | |
941 | ||
35a4d143 | 942 | (if (and (> (length isearch-string) 0) (not nopush)) |
8e1cae6d | 943 | ;; Update the ring data. |
73d2bf95 | 944 | (isearch-update-ring isearch-string isearch-regexp)) |
8e1cae6d | 945 | |
87e97673 RS |
946 | (let ((isearch-mode-end-hook-quit (and nopush (not edit)))) |
947 | (run-hooks 'isearch-mode-end-hook)) | |
071fdd66 JL |
948 | |
949 | ;; If there was movement, mark the starting position. | |
4837b516 | 950 | ;; Maybe should test difference between and set mark only if > threshold. |
071fdd66 JL |
951 | (if (/= (point) isearch-opoint) |
952 | (or (and transient-mark-mode mark-active) | |
953 | (progn | |
954 | (push-mark isearch-opoint t) | |
955 | (or executing-kbd-macro (> (minibuffer-depth) 0) | |
956 | (message "Mark saved where search started"))))) | |
957 | ||
0daa17f3 | 958 | (and (not edit) isearch-recursive-edit (exit-recursive-edit))) |
08200510 | 959 | |
73d2bf95 RS |
960 | (defun isearch-update-ring (string &optional regexp) |
961 | "Add STRING to the beginning of the search ring. | |
a2b7dcc7 | 962 | REGEXP if non-nil says use the regexp search ring." |
77e5aef9 KS |
963 | (add-to-history |
964 | (if regexp 'regexp-search-ring 'search-ring) | |
965 | string | |
966 | (if regexp regexp-search-ring-max search-ring-max))) | |
73d2bf95 | 967 | |
191f025a SM |
968 | ;; Switching buffers should first terminate isearch-mode. |
969 | ;; ;; For Emacs 19, the frame switch event is handled. | |
970 | ;; (defun isearch-switch-frame-handler () | |
971 | ;; (interactive) ;; Is this necessary? | |
972 | ;; ;; First terminate isearch-mode. | |
973 | ;; (isearch-done) | |
974 | ;; (isearch-clean-overlays) | |
8989a920 | 975 | ;; (handle-switch-frame (car (cdr last-command-event)))) |
08200510 | 976 | |
8e1cae6d | 977 | \f |
08e3de69 EZ |
978 | ;; The search status structure and stack. |
979 | ||
1a699acf | 980 | (defsubst isearch-string-state (frame) |
08e3de69 | 981 | "Return the search string in FRAME." |
3eec7894 | 982 | (aref frame 0)) |
1a699acf | 983 | (defsubst isearch-message-state (frame) |
08e3de69 | 984 | "Return the search string to display to the user in FRAME." |
3eec7894 | 985 | (aref frame 1)) |
1a699acf | 986 | (defsubst isearch-point-state (frame) |
08e3de69 | 987 | "Return the point in FRAME." |
3eec7894 | 988 | (aref frame 2)) |
1a699acf | 989 | (defsubst isearch-success-state (frame) |
08e3de69 | 990 | "Return the success flag in FRAME." |
3eec7894 | 991 | (aref frame 3)) |
1a699acf | 992 | (defsubst isearch-forward-state (frame) |
08e3de69 | 993 | "Return the searching-forward flag in FRAME." |
3eec7894 | 994 | (aref frame 4)) |
1a699acf | 995 | (defsubst isearch-other-end-state (frame) |
08e3de69 | 996 | "Return the other end of the match in FRAME." |
3eec7894 | 997 | (aref frame 5)) |
1a699acf | 998 | (defsubst isearch-word-state (frame) |
08e3de69 | 999 | "Return the search-by-word flag in FRAME." |
3eec7894 | 1000 | (aref frame 6)) |
ba653a53 | 1001 | (defsubst isearch-error-state (frame) |
08e3de69 | 1002 | "Return the regexp error message in FRAME, or nil if its regexp is valid." |
3eec7894 | 1003 | (aref frame 7)) |
1a699acf | 1004 | (defsubst isearch-wrapped-state (frame) |
08e3de69 | 1005 | "Return the search-wrapped flag in FRAME." |
3eec7894 | 1006 | (aref frame 8)) |
1a699acf | 1007 | (defsubst isearch-barrier-state (frame) |
08e3de69 | 1008 | "Return the barrier value in FRAME." |
3eec7894 | 1009 | (aref frame 9)) |
1a699acf | 1010 | (defsubst isearch-case-fold-search-state (frame) |
08e3de69 | 1011 | "Return the case-folding flag in FRAME." |
ba653a53 | 1012 | (aref frame 10)) |
6a18e4e7 | 1013 | (defsubst isearch-pop-fun-state (frame) |
4b65254d | 1014 | "Return the function restoring the mode-specific Isearch state in FRAME." |
ba653a53 | 1015 | (aref frame 11)) |
08e3de69 EZ |
1016 | |
1017 | (defun isearch-top-state () | |
1018 | (let ((cmd (car isearch-cmds))) | |
1a699acf JL |
1019 | (setq isearch-string (isearch-string-state cmd) |
1020 | isearch-message (isearch-message-state cmd) | |
1021 | isearch-success (isearch-success-state cmd) | |
1022 | isearch-forward (isearch-forward-state cmd) | |
1023 | isearch-other-end (isearch-other-end-state cmd) | |
1024 | isearch-word (isearch-word-state cmd) | |
ba653a53 | 1025 | isearch-error (isearch-error-state cmd) |
1a699acf JL |
1026 | isearch-wrapped (isearch-wrapped-state cmd) |
1027 | isearch-barrier (isearch-barrier-state cmd) | |
1a699acf | 1028 | isearch-case-fold-search (isearch-case-fold-search-state cmd)) |
6a18e4e7 JL |
1029 | (if (functionp (isearch-pop-fun-state cmd)) |
1030 | (funcall (isearch-pop-fun-state cmd) cmd)) | |
1a699acf | 1031 | (goto-char (isearch-point-state cmd)))) |
08e3de69 EZ |
1032 | |
1033 | (defun isearch-pop-state () | |
1034 | (setq isearch-cmds (cdr isearch-cmds)) | |
1035 | (isearch-top-state)) | |
1036 | ||
1037 | (defun isearch-push-state () | |
1038 | (setq isearch-cmds | |
1039 | (cons (vector isearch-string isearch-message (point) | |
1040 | isearch-success isearch-forward isearch-other-end | |
1041 | isearch-word | |
ba653a53 JL |
1042 | isearch-error isearch-wrapped isearch-barrier |
1043 | isearch-case-fold-search | |
6a18e4e7 JL |
1044 | (if isearch-push-state-function |
1045 | (funcall isearch-push-state-function))) | |
08e3de69 EZ |
1046 | isearch-cmds))) |
1047 | ||
1048 | \f | |
8e1cae6d JB |
1049 | ;; Commands active while inside of the isearch minor mode. |
1050 | ||
1051 | (defun isearch-exit () | |
1052 | "Exit search normally. | |
1053 | However, if this is the first command after starting incremental | |
1054 | search and `search-nonincremental-instead' is non-nil, do a | |
08200510 | 1055 | nonincremental search instead via `isearch-edit-string'." |
8e1cae6d | 1056 | (interactive) |
b48ca14f | 1057 | (if (and search-nonincremental-instead |
8e1cae6d | 1058 | (= 0 (length isearch-string))) |
08200510 RS |
1059 | (let ((isearch-nonincremental t)) |
1060 | (isearch-edit-string))) | |
0352b205 RS |
1061 | (isearch-done) |
1062 | (isearch-clean-overlays)) | |
8e1cae6d | 1063 | |
06b60517 | 1064 | (defvar minibuffer-history-symbol) ;; from external package gmhist.el |
8e1cae6d | 1065 | |
b74aa22b DA |
1066 | (defun isearch-fail-pos () |
1067 | "Position of first mismatch in search string, or its length if none." | |
1068 | (let ((cmds isearch-cmds)) | |
1069 | (if (and isearch-success (not isearch-error)) | |
1070 | (length isearch-message) | |
1071 | (while (or (not (isearch-success-state (car cmds))) | |
1072 | (isearch-error-state (car cmds))) | |
1073 | (pop cmds)) | |
1074 | (let ((succ-msg (and cmds (isearch-message-state (car cmds))))) | |
1075 | (if (and (stringp succ-msg) | |
1076 | (< (length succ-msg) (length isearch-message)) | |
1077 | (equal succ-msg | |
1078 | (substring isearch-message 0 (length succ-msg)))) | |
1079 | (length succ-msg) | |
1080 | 0))))) | |
1081 | ||
8e1cae6d | 1082 | (defun isearch-edit-string () |
08200510 RS |
1083 | "Edit the search string in the minibuffer. |
1084 | The following additional command keys are active while editing. | |
1085 | \\<minibuffer-local-isearch-map> | |
1086 | \\[exit-minibuffer] to resume incremental searching with the edited string. | |
1087 | \\[isearch-nonincremental-exit-minibuffer] to do one nonincremental search. | |
1088 | \\[isearch-forward-exit-minibuffer] to resume isearching forward. | |
8eb40e74 | 1089 | \\[isearch-reverse-exit-minibuffer] to resume isearching backward. |
08200510 | 1090 | \\[isearch-complete-edit] to complete the search string using the search ring. |
8eb40e74 | 1091 | \\<isearch-mode-map> |
74820eb5 | 1092 | If first char entered is \\[isearch-yank-word-or-char], then do word search instead." |
08200510 RS |
1093 | |
1094 | ;; This code is very hairy for several reasons, explained in the code. | |
1095 | ;; Mainly, isearch-mode must be terminated while editing and then restarted. | |
1096 | ;; If there were a way to catch any change of buffer from the minibuffer, | |
1097 | ;; this could be simplified greatly. | |
eb8c3be9 | 1098 | ;; Editing doesn't back up the search point. Should it? |
8e1cae6d | 1099 | (interactive) |
06b60517 | 1100 | (condition-case nil |
e900ced4 RS |
1101 | (progn |
1102 | (let ((isearch-nonincremental isearch-nonincremental) | |
1103 | ||
1104 | ;; Locally bind all isearch global variables to protect them | |
1105 | ;; from recursive isearching. | |
1106 | ;; isearch-string -message and -forward are not bound | |
1107 | ;; so they may be changed. Instead, save the values. | |
1108 | (isearch-new-string isearch-string) | |
1109 | (isearch-new-message isearch-message) | |
1110 | (isearch-new-forward isearch-forward) | |
1111 | (isearch-new-word isearch-word) | |
1112 | ||
1113 | (isearch-regexp isearch-regexp) | |
1114 | (isearch-op-fun isearch-op-fun) | |
1115 | (isearch-cmds isearch-cmds) | |
1116 | (isearch-success isearch-success) | |
1117 | (isearch-wrapped isearch-wrapped) | |
1118 | (isearch-barrier isearch-barrier) | |
1119 | (isearch-adjusted isearch-adjusted) | |
1120 | (isearch-yank-flag isearch-yank-flag) | |
ba653a53 | 1121 | (isearch-error isearch-error) |
e900ced4 RS |
1122 | ;;; Don't bind this. We want isearch-search, below, to set it. |
1123 | ;;; And the old value won't matter after that. | |
1124 | ;;; (isearch-other-end isearch-other-end) | |
1125 | ;;; Perhaps some of these other variables should be bound for a | |
1126 | ;;; shorter period, ending before the next isearch-search. | |
1127 | ;;; But there doesn't seem to be a real bug, so let's not risk it now. | |
1128 | (isearch-opoint isearch-opoint) | |
1129 | (isearch-slow-terminal-mode isearch-slow-terminal-mode) | |
1130 | (isearch-small-window isearch-small-window) | |
1131 | (isearch-recursive-edit isearch-recursive-edit) | |
1132 | ;; Save current configuration so we can restore it here. | |
1133 | (isearch-window-configuration (current-window-configuration)) | |
ae1a21c6 MB |
1134 | |
1135 | ;; Temporarily restore `minibuffer-message-timeout'. | |
1136 | (minibuffer-message-timeout | |
1137 | isearch-original-minibuffer-message-timeout) | |
1138 | (isearch-original-minibuffer-message-timeout | |
1139 | isearch-original-minibuffer-message-timeout) | |
02b99a17 | 1140 | old-point old-other-end) |
e900ced4 RS |
1141 | |
1142 | ;; Actually terminate isearching until editing is done. | |
b48ca14f | 1143 | ;; This is so that the user can do anything without failure, |
e900ced4 | 1144 | ;; like switch buffers and start another isearch, and return. |
06b60517 | 1145 | (condition-case nil |
e900ced4 RS |
1146 | (isearch-done t t) |
1147 | (exit nil)) ; was recursive editing | |
1148 | ||
02b99a17 JL |
1149 | ;; Save old point and isearch-other-end before reading from minibuffer |
1150 | ;; that can change their values. | |
1151 | (setq old-point (point) old-other-end isearch-other-end) | |
1152 | ||
e900ced4 | 1153 | (unwind-protect |
c16e87ee | 1154 | (let* ((message-log-max nil) |
e900ced4 RS |
1155 | ;; Binding minibuffer-history-symbol to nil is a work-around |
1156 | ;; for some incompatibility with gmhist. | |
c16e87ee | 1157 | (minibuffer-history-symbol)) |
e900ced4 | 1158 | (setq isearch-new-string |
e5feeb31 SM |
1159 | (read-from-minibuffer |
1160 | (isearch-message-prefix nil nil isearch-nonincremental) | |
b74aa22b | 1161 | (cons isearch-string (1+ (isearch-fail-pos))) |
e5feeb31 | 1162 | minibuffer-local-isearch-map nil |
363de02e JL |
1163 | (if isearch-regexp |
1164 | (cons 'regexp-search-ring | |
1165 | (1+ (or regexp-search-ring-yank-pointer -1))) | |
1166 | (cons 'search-ring | |
1167 | (1+ (or search-ring-yank-pointer -1)))) | |
e5feeb31 | 1168 | nil t) |
e900ced4 RS |
1169 | isearch-new-message |
1170 | (mapconcat 'isearch-text-char-description | |
1171 | isearch-new-string ""))) | |
02b99a17 JL |
1172 | |
1173 | ;; Set point at the start (end) of old match if forward (backward), | |
1174 | ;; so after exiting minibuffer isearch resumes at the start (end) | |
1175 | ;; of this match and can find it again. | |
1176 | (if (and old-other-end (eq old-point (point)) | |
1177 | (eq isearch-forward isearch-new-forward)) | |
1178 | (goto-char old-other-end)) | |
1179 | ||
e900ced4 | 1180 | ;; Always resume isearching by restarting it. |
b48ca14f JB |
1181 | (isearch-mode isearch-forward |
1182 | isearch-regexp | |
1183 | isearch-op-fun | |
e900ced4 RS |
1184 | nil |
1185 | isearch-word) | |
1186 | ||
1187 | ;; Copy new local values to isearch globals | |
1188 | (setq isearch-string isearch-new-string | |
1189 | isearch-message isearch-new-message | |
1190 | isearch-forward isearch-new-forward | |
1191 | isearch-word isearch-new-word)) | |
1192 | ||
1193 | ;; Empty isearch-string means use default. | |
11dcdbb2 JL |
1194 | (when (= 0 (length isearch-string)) |
1195 | (setq isearch-string (or (car (if isearch-regexp | |
1196 | regexp-search-ring | |
1197 | search-ring)) | |
1198 | "") | |
1199 | ||
1200 | isearch-message | |
1201 | (mapconcat 'isearch-text-char-description | |
1202 | isearch-string "")) | |
1203 | ;; After taking the last element, adjust ring to previous one. | |
1204 | (isearch-ring-adjust1 nil))) | |
e900ced4 | 1205 | |
a71a98cf JL |
1206 | ;; This used to push the state as of before this C-s, but it adds |
1207 | ;; an inconsistent state where part of variables are from the | |
1208 | ;; previous search (e.g. `isearch-success'), and part of variables | |
1209 | ;; are just entered from the minibuffer (e.g. `isearch-string'). | |
1210 | ;; (isearch-push-state) | |
08200510 RS |
1211 | |
1212 | ;; Reinvoke the pending search. | |
08200510 | 1213 | (isearch-search) |
a71a98cf | 1214 | (isearch-push-state) ; this pushes the correct state |
08200510 | 1215 | (isearch-update) |
b48ca14f | 1216 | (if isearch-nonincremental |
08200510 RS |
1217 | (progn |
1218 | ;; (sit-for 1) ;; needed if isearch-done does: (message "") | |
40c7f256 RS |
1219 | (isearch-done) |
1220 | ;; The search done message is confusing when the string | |
1221 | ;; is empty, so erase it. | |
1222 | (if (equal isearch-string "") | |
1223 | (message ""))))) | |
8e1cae6d | 1224 | |
08200510 RS |
1225 | (quit ; handle abort-recursive-edit |
1226 | (isearch-abort) ;; outside of let to restore outside global values | |
1227 | ))) | |
1228 | ||
1229 | (defun isearch-nonincremental-exit-minibuffer () | |
1230 | (interactive) | |
1231 | (setq isearch-nonincremental t) | |
1232 | (exit-minibuffer)) | |
1233 | ||
1234 | (defun isearch-forward-exit-minibuffer () | |
1235 | (interactive) | |
1236 | (setq isearch-new-forward t) | |
1237 | (exit-minibuffer)) | |
8e1cae6d | 1238 | |
08200510 | 1239 | (defun isearch-reverse-exit-minibuffer () |
8e1cae6d | 1240 | (interactive) |
08200510 RS |
1241 | (setq isearch-new-forward nil) |
1242 | (exit-minibuffer)) | |
1243 | ||
19993c54 RS |
1244 | (defun isearch-cancel () |
1245 | "Terminate the search and go back to the starting point." | |
1246 | (interactive) | |
40637410 JL |
1247 | (if (and isearch-push-state-function isearch-cmds) |
1248 | ;; For defined push-state function, restore the first state. | |
1249 | ;; This calls pop-state function and restores original point. | |
1250 | (let ((isearch-cmds (last isearch-cmds))) | |
1251 | (isearch-top-state)) | |
1252 | (goto-char isearch-opoint)) | |
6a18e4e7 | 1253 | (isearch-done t) ; exit isearch |
0352b205 | 1254 | (isearch-clean-overlays) |
6a18e4e7 | 1255 | (signal 'quit nil)) ; and pass on quit signal |
08200510 RS |
1256 | |
1257 | (defun isearch-abort () | |
b7852303 | 1258 | "Abort incremental search mode if searching is successful, signaling quit. |
08200510 | 1259 | Otherwise, revert to previous successful search and continue searching. |
b7852303 | 1260 | Use `isearch-exit' to quit without signaling." |
08200510 | 1261 | (interactive) |
eb8c3be9 | 1262 | ;; (ding) signal instead below, if quitting |
8e1cae6d | 1263 | (discard-input) |
d4119912 JL |
1264 | (if (and isearch-success (not isearch-error)) |
1265 | ;; If search is successful and has no incomplete regexp, | |
1266 | ;; move back to starting point and really do quit. | |
6a18e4e7 JL |
1267 | (progn |
1268 | (setq isearch-success nil) | |
1269 | (isearch-cancel)) | |
925a67ca RS |
1270 | ;; If search is failing, or has an incomplete regexp, |
1271 | ;; rub out until it is once more successful. | |
ba653a53 | 1272 | (while (or (not isearch-success) isearch-error) |
925a67ca | 1273 | (isearch-pop-state)) |
8e1cae6d JB |
1274 | (isearch-update))) |
1275 | ||
8e1cae6d JB |
1276 | (defun isearch-repeat (direction) |
1277 | ;; Utility for isearch-repeat-forward and -backward. | |
1278 | (if (eq isearch-forward (eq direction 'forward)) | |
1279 | ;; C-s in forward or C-r in reverse. | |
1280 | (if (equal isearch-string "") | |
1281 | ;; If search string is empty, use last one. | |
ece75c05 JL |
1282 | (if (null (if isearch-regexp regexp-search-ring search-ring)) |
1283 | (setq isearch-error "No previous search string") | |
1284 | (setq isearch-string | |
1285 | (if isearch-regexp | |
1286 | (car regexp-search-ring) | |
1287 | (car search-ring)) | |
1288 | isearch-message | |
1289 | (mapconcat 'isearch-text-char-description | |
1290 | isearch-string "") | |
11dcdbb2 JL |
1291 | isearch-case-fold-search isearch-last-case-fold-search) |
1292 | ;; After taking the last element, adjust ring to previous one. | |
1293 | (isearch-ring-adjust1 nil)) | |
8e1cae6d JB |
1294 | ;; If already have what to search for, repeat it. |
1295 | (or isearch-success | |
02b2f510 | 1296 | (progn |
ba653a53 JL |
1297 | ;; Set isearch-wrapped before calling isearch-wrap-function |
1298 | (setq isearch-wrapped t) | |
6a18e4e7 JL |
1299 | (if isearch-wrap-function |
1300 | (funcall isearch-wrap-function) | |
ba653a53 | 1301 | (goto-char (if isearch-forward (point-min) (point-max))))))) |
8e1cae6d | 1302 | ;; C-s in reverse or C-r in forward, change direction. |
f4c49513 RS |
1303 | (setq isearch-forward (not isearch-forward) |
1304 | isearch-success t)) | |
8e1cae6d JB |
1305 | |
1306 | (setq isearch-barrier (point)) ; For subsequent \| if regexp. | |
6fefdc4b RS |
1307 | |
1308 | (if (equal isearch-string "") | |
1309 | (setq isearch-success t) | |
512bfd85 RS |
1310 | (if (and isearch-success |
1311 | (equal (point) isearch-other-end) | |
99ae9e9f | 1312 | (not isearch-just-started)) |
8e1cae6d JB |
1313 | ;; If repeating a search that found |
1314 | ;; an empty string, ensure we advance. | |
6fefdc4b RS |
1315 | (if (if isearch-forward (eobp) (bobp)) |
1316 | ;; If there's nowhere to advance to, fail (and wrap next time). | |
1317 | (progn | |
1318 | (setq isearch-success nil) | |
1319 | (ding)) | |
1320 | (forward-char (if isearch-forward 1 -1)) | |
1321 | (isearch-search)) | |
1322 | (isearch-search))) | |
1323 | ||
8e1cae6d JB |
1324 | (isearch-push-state) |
1325 | (isearch-update)) | |
1326 | ||
1327 | (defun isearch-repeat-forward () | |
1328 | "Repeat incremental search forwards." | |
1329 | (interactive) | |
1330 | (isearch-repeat 'forward)) | |
1331 | ||
1332 | (defun isearch-repeat-backward () | |
1333 | "Repeat incremental search backwards." | |
1334 | (interactive) | |
1335 | (isearch-repeat 'backward)) | |
1336 | ||
1337 | (defun isearch-toggle-regexp () | |
1338 | "Toggle regexp searching on or off." | |
1339 | ;; The status stack is left unchanged. | |
1340 | (interactive) | |
1341 | (setq isearch-regexp (not isearch-regexp)) | |
08200510 | 1342 | (if isearch-regexp (setq isearch-word nil)) |
d85519bb | 1343 | (setq isearch-success t isearch-adjusted t) |
8e1cae6d JB |
1344 | (isearch-update)) |
1345 | ||
70bc5268 JL |
1346 | (defun isearch-toggle-word () |
1347 | "Toggle word searching on or off." | |
1348 | (interactive) | |
1349 | (setq isearch-word (not isearch-word)) | |
1350 | (setq isearch-success t isearch-adjusted t) | |
1351 | (isearch-update)) | |
1352 | ||
4453091d RS |
1353 | (defun isearch-toggle-case-fold () |
1354 | "Toggle case folding in searching on or off." | |
1355 | (interactive) | |
1356 | (setq isearch-case-fold-search | |
1357 | (if isearch-case-fold-search nil 'yes)) | |
a56687f1 KH |
1358 | (let ((message-log-max nil)) |
1359 | (message "%s%s [case %ssensitive]" | |
1360 | (isearch-message-prefix nil nil isearch-nonincremental) | |
1361 | isearch-message | |
1362 | (if isearch-case-fold-search "in" ""))) | |
d85519bb | 1363 | (setq isearch-success t isearch-adjusted t) |
4453091d RS |
1364 | (sit-for 1) |
1365 | (isearch-update)) | |
1366 | ||
9d14752f JL |
1367 | (defun isearch-query-replace (&optional delimited regexp-flag) |
1368 | "Start `query-replace' with string to replace from last search string. | |
1369 | The arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
1370 | only matches surrounded by word boundaries. Note that using the prefix arg | |
1371 | is possible only when `isearch-allow-scroll' is non-nil, and it don't | |
1372 | always provides the correct matches for `query-replace', so the preferred | |
1373 | way to run word replacements from Isearch is `M-s w ... M-%'." | |
1374 | (interactive | |
1375 | (list current-prefix-arg)) | |
81e898ea | 1376 | (barf-if-buffer-read-only) |
d85519bb | 1377 | (if regexp-flag (setq isearch-regexp t)) |
6e3057bb JL |
1378 | (let ((case-fold-search isearch-case-fold-search) |
1379 | ;; set `search-upper-case' to nil to not call | |
1380 | ;; `isearch-no-upper-case-p' in `perform-replace' | |
8d32ed64 JL |
1381 | (search-upper-case nil) |
1382 | ;; Set `isearch-recursive-edit' to nil to prevent calling | |
1383 | ;; `exit-recursive-edit' in `isearch-done' that terminates | |
1384 | ;; the execution of this command when it is non-nil. | |
1385 | ;; We call `exit-recursive-edit' explicitly at the end below. | |
1386 | (isearch-recursive-edit nil)) | |
1387 | (isearch-done nil t) | |
74820eb5 | 1388 | (isearch-clean-overlays) |
e7e4ea21 JL |
1389 | (if (and isearch-other-end |
1390 | (< isearch-other-end (point)) | |
d85519bb | 1391 | (not (and transient-mark-mode mark-active |
fa81f010 | 1392 | (< (mark) (point))))) |
d85519bb JL |
1393 | (goto-char isearch-other-end)) |
1394 | (set query-replace-from-history-variable | |
1395 | (cons isearch-string | |
1396 | (symbol-value query-replace-from-history-variable))) | |
81e898ea SM |
1397 | (perform-replace |
1398 | isearch-string | |
d85519bb JL |
1399 | (query-replace-read-to |
1400 | isearch-string | |
9d14752f JL |
1401 | (concat "Query replace" |
1402 | (if (or delimited isearch-word) " word" "") | |
1403 | (if isearch-regexp " regexp" "") | |
1404 | (if (and transient-mark-mode mark-active) " in region" "")) | |
d85519bb | 1405 | isearch-regexp) |
9d14752f | 1406 | t isearch-regexp (or delimited isearch-word) nil nil |
d85519bb | 1407 | (if (and transient-mark-mode mark-active) (region-beginning)) |
8d32ed64 JL |
1408 | (if (and transient-mark-mode mark-active) (region-end)))) |
1409 | (and isearch-recursive-edit (exit-recursive-edit))) | |
74820eb5 | 1410 | |
9d14752f JL |
1411 | (defun isearch-query-replace-regexp (&optional delimited) |
1412 | "Start `query-replace-regexp' with string to replace from last search string. | |
1413 | See `isearch-query-replace' for more information." | |
1414 | (interactive | |
1415 | (list current-prefix-arg)) | |
1416 | (isearch-query-replace delimited t)) | |
74820eb5 | 1417 | |
6e3057bb JL |
1418 | (defun isearch-occur (regexp &optional nlines) |
1419 | "Run `occur' with regexp to search from the current search string. | |
1420 | Interactively, REGEXP is the current search regexp or a quoted search | |
1421 | string. NLINES has the same meaning as in `occur'." | |
1422 | (interactive | |
1423 | (list | |
8d32ed64 | 1424 | (cond |
b87573f0 JL |
1425 | (isearch-word (concat "\\b" (replace-regexp-in-string |
1426 | "\\W+" "\\W+" | |
1427 | (replace-regexp-in-string | |
1428 | "^\\W+\\|\\W+$" "" isearch-string) | |
1429 | nil t) | |
1430 | "\\b")) | |
8d32ed64 JL |
1431 | (isearch-regexp isearch-string) |
1432 | (t (regexp-quote isearch-string))) | |
6e3057bb JL |
1433 | (if current-prefix-arg (prefix-numeric-value current-prefix-arg)))) |
1434 | (let ((case-fold-search isearch-case-fold-search) | |
1435 | ;; set `search-upper-case' to nil to not call | |
1436 | ;; `isearch-no-upper-case-p' in `occur-1' | |
1437 | (search-upper-case nil)) | |
1438 | (occur regexp nlines))) | |
1439 | ||
11c9f489 JL |
1440 | (declare-function hi-lock-read-face-name "hi-lock" ()) |
1441 | ||
8938c0bc | 1442 | (defun isearch-highlight-regexp () |
11c9f489 | 1443 | "Run `highlight-regexp' with regexp from the current search string. |
8938c0bc JL |
1444 | It exits Isearch mode and calls `hi-lock-face-buffer' with its regexp |
1445 | argument from the last search regexp or a quoted search string, | |
1446 | and reads its face argument using `hi-lock-read-face-name'." | |
1447 | (interactive) | |
8d32ed64 JL |
1448 | (let ( |
1449 | ;; Set `isearch-recursive-edit' to nil to prevent calling | |
1450 | ;; `exit-recursive-edit' in `isearch-done' that terminates | |
1451 | ;; the execution of this command when it is non-nil. | |
1452 | ;; We call `exit-recursive-edit' explicitly at the end below. | |
1453 | (isearch-recursive-edit nil)) | |
1454 | (isearch-done nil t) | |
1455 | (isearch-clean-overlays)) | |
8938c0bc | 1456 | (require 'hi-lock nil t) |
36bdf1ff CY |
1457 | (let ((string (cond (isearch-regexp isearch-string) |
1458 | ((if (and (eq isearch-case-fold-search t) | |
1459 | search-upper-case) | |
1460 | (isearch-no-upper-case-p | |
1461 | isearch-string isearch-regexp) | |
1462 | isearch-case-fold-search) | |
1463 | ;; Turn isearch-string into a case-insensitive | |
1464 | ;; regexp. | |
9c7a6b15 CY |
1465 | (mapconcat |
1466 | (lambda (c) | |
1467 | (let ((s (string c))) | |
1468 | (if (string-match "[[:alpha:]]" s) | |
1469 | (format "[%s%s]" (upcase s) (downcase s)) | |
1470 | (regexp-quote s)))) | |
1471 | isearch-string "")) | |
36bdf1ff | 1472 | (t (regexp-quote isearch-string))))) |
8d32ed64 JL |
1473 | (hi-lock-face-buffer string (hi-lock-read-face-name))) |
1474 | (and isearch-recursive-edit (exit-recursive-edit))) | |
11c9f489 | 1475 | |
74820eb5 | 1476 | \f |
8e1cae6d | 1477 | (defun isearch-delete-char () |
d6b8a1c0 | 1478 | "Discard last input item and move point back. |
8e1cae6d JB |
1479 | If no previous match was done, just beep." |
1480 | (interactive) | |
1481 | (if (null (cdr isearch-cmds)) | |
1482 | (ding) | |
1483 | (isearch-pop-state)) | |
1484 | (isearch-update)) | |
1485 | ||
74820eb5 JL |
1486 | (defun isearch-del-char (&optional arg) |
1487 | "Delete character from end of search string and search again. | |
1488 | If search string is empty, just beep." | |
1489 | (interactive "p") | |
1490 | (if (= 0 (length isearch-string)) | |
35904fd3 | 1491 | (ding) |
74820eb5 | 1492 | (setq isearch-string (substring isearch-string 0 (- (or arg 1))) |
35904fd3 | 1493 | isearch-message (mapconcat 'isearch-text-char-description |
02b99a17 JL |
1494 | isearch-string ""))) |
1495 | ;; Use the isearch-other-end as new starting point to be able | |
1496 | ;; to find the remaining part of the search string again. | |
1497 | (if isearch-other-end (goto-char isearch-other-end)) | |
1498 | (isearch-search) | |
1499 | (isearch-push-state) | |
1500 | (isearch-update)) | |
8e1cae6d | 1501 | |
9cf081fa KH |
1502 | (defun isearch-yank-string (string) |
1503 | "Pull STRING into search string." | |
1504 | ;; Downcase the string if not supposed to case-fold yanked strings. | |
1505 | (if (and isearch-case-fold-search | |
1506 | (eq 'not-yanks search-upper-case)) | |
1507 | (setq string (downcase string))) | |
1508 | (if isearch-regexp (setq string (regexp-quote string))) | |
5d944a8f JL |
1509 | ;; Don't move cursor in reverse search. |
1510 | (setq isearch-yank-flag t) | |
1511 | (isearch-process-search-string | |
1512 | string (mapconcat 'isearch-text-char-description string ""))) | |
8e1cae6d | 1513 | |
30d47262 RS |
1514 | (defun isearch-yank-kill () |
1515 | "Pull string from kill ring into search string." | |
1516 | (interactive) | |
9cf081fa KH |
1517 | (isearch-yank-string (current-kill 0))) |
1518 | ||
25666126 LL |
1519 | (defun isearch-yank-pop () |
1520 | "Replace just-yanked search string with previously killed string." | |
1521 | (interactive) | |
1522 | (if (not (memq last-command '(isearch-yank-kill isearch-yank-pop))) | |
1523 | ;; Fall back on `isearch-yank-kill' for the benefits of people | |
1524 | ;; who are used to the old behavior of `M-y' in isearch mode. In | |
1525 | ;; future, this fallback may be changed if we ever change | |
1526 | ;; `yank-pop' to do something like the kill-ring-browser. | |
1527 | (isearch-yank-kill) | |
1528 | (isearch-pop-state) | |
1529 | (isearch-yank-string (current-kill 1)))) | |
1530 | ||
9cf081fa | 1531 | (defun isearch-yank-x-selection () |
117132a6 | 1532 | "Pull current X selection into search string." |
9cf081fa KH |
1533 | (interactive) |
1534 | (isearch-yank-string (x-get-selection))) | |
8e1cae6d | 1535 | |
e4af1426 | 1536 | |
191f025a | 1537 | (defun isearch-mouse-2 (click) |
e4af1426 | 1538 | "Handle mouse-2 in Isearch mode. |
117132a6 | 1539 | For a click in the echo area, invoke `isearch-yank-x-selection'. |
f3b5dd74 DK |
1540 | Otherwise invoke whatever the calling mouse-2 command sequence |
1541 | is bound to outside of Isearch." | |
191f025a | 1542 | (interactive "e") |
e4af1426 GM |
1543 | (let* ((w (posn-window (event-start click))) |
1544 | (overriding-terminal-local-map nil) | |
f3b5dd74 | 1545 | (binding (key-binding (this-command-keys-vector) t))) |
117132a6 DL |
1546 | (if (and (window-minibuffer-p w) |
1547 | (not (minibuffer-window-active-p w))) ; in echo area | |
1548 | (isearch-yank-x-selection) | |
cd59ea72 | 1549 | (when (functionp binding) |
191f025a | 1550 | (call-interactively binding))))) |
e4af1426 | 1551 | |
29e53a0a KF |
1552 | (defun isearch-yank-internal (jumpform) |
1553 | "Pull the text from point to the point reached by JUMPFORM. | |
4b65254d JB |
1554 | JUMPFORM is a lambda expression that takes no arguments and returns |
1555 | a buffer position, possibly having moved point to that position. | |
1556 | For example, it might move point forward by a word and return point, | |
1557 | or it might return the position of the end of the line." | |
9cf081fa KH |
1558 | (isearch-yank-string |
1559 | (save-excursion | |
1560 | (and (not isearch-forward) isearch-other-end | |
1561 | (goto-char isearch-other-end)) | |
29e53a0a KF |
1562 | (buffer-substring-no-properties (point) (funcall jumpform))))) |
1563 | ||
74820eb5 JL |
1564 | (defun isearch-yank-char-in-minibuffer (&optional arg) |
1565 | "Pull next character from buffer into end of search string in minibuffer." | |
1566 | (interactive "p") | |
1567 | (if (eobp) | |
1568 | (insert | |
00c42405 | 1569 | (with-current-buffer (cadr (buffer-list)) |
74820eb5 JL |
1570 | (buffer-substring-no-properties |
1571 | (point) (progn (forward-char arg) (point))))) | |
1572 | (forward-char arg))) | |
1573 | ||
1574 | (defun isearch-yank-char (&optional arg) | |
35904fd3 | 1575 | "Pull next character from buffer into search string." |
74820eb5 JL |
1576 | (interactive "p") |
1577 | (isearch-yank-internal (lambda () (forward-char arg) (point)))) | |
29e53a0a | 1578 | |
1ddb2ea0 | 1579 | (declare-function subword-forward "subword" (&optional arg)) |
868bf43a | 1580 | (defun isearch-yank-word-or-char () |
1ddb2ea0 MY |
1581 | "Pull next character, subword or word from buffer into search string. |
1582 | Subword is used when `subword-mode' is activated. " | |
868bf43a | 1583 | (interactive) |
21d90805 | 1584 | (isearch-yank-internal |
b48ca14f | 1585 | (lambda () |
21d90805 KF |
1586 | (if (or (= (char-syntax (or (char-after) 0)) ?w) |
1587 | (= (char-syntax (or (char-after (1+ (point))) 0)) ?w)) | |
1ddb2ea0 MY |
1588 | (if (and (boundp 'subword-mode) subword-mode) |
1589 | (subword-forward 1) | |
1590 | (forward-word 1)) | |
21d90805 | 1591 | (forward-char 1)) (point)))) |
868bf43a | 1592 | |
29e53a0a KF |
1593 | (defun isearch-yank-word () |
1594 | "Pull next word from buffer into search string." | |
1595 | (interactive) | |
1596 | (isearch-yank-internal (lambda () (forward-word 1) (point)))) | |
8e1cae6d JB |
1597 | |
1598 | (defun isearch-yank-line () | |
1599 | "Pull rest of line from buffer into search string." | |
1600 | (interactive) | |
a1883913 | 1601 | (isearch-yank-internal |
933f8467 RF |
1602 | (lambda () (let ((inhibit-field-text-motion t)) |
1603 | (line-end-position (if (eolp) 2 1)))))) | |
8e1cae6d JB |
1604 | |
1605 | (defun isearch-search-and-update () | |
1606 | ;; Do the search and update the display. | |
191f025a | 1607 | (when (or isearch-success |
35904fd3 JL |
1608 | ;; Unsuccessful regexp search may become successful by |
1609 | ;; addition of characters which make isearch-string valid | |
cd59ea72 SM |
1610 | isearch-regexp |
1611 | ;; If the string was found but was completely invisible, | |
1612 | ;; it might now be partly visible, so try again. | |
1613 | (prog1 isearch-hidden (setq isearch-hidden nil))) | |
8e1cae6d JB |
1614 | ;; In reverse search, adding stuff at |
1615 | ;; the end may cause zero or many more chars to be | |
1616 | ;; matched, in the string following point. | |
1617 | ;; Allow all those possibilities without moving point as | |
1618 | ;; long as the match does not extend past search origin. | |
1619 | (if (and (not isearch-forward) (not isearch-adjusted) | |
1620 | (condition-case () | |
99ae9e9f | 1621 | (let ((case-fold-search isearch-case-fold-search)) |
ec0a2f45 KH |
1622 | (if (and (eq case-fold-search t) search-upper-case) |
1623 | (setq case-fold-search | |
1624 | (isearch-no-upper-case-p isearch-string isearch-regexp))) | |
99ae9e9f KH |
1625 | (looking-at (if isearch-regexp isearch-string |
1626 | (regexp-quote isearch-string)))) | |
8e1cae6d | 1627 | (error nil)) |
bd6a8414 | 1628 | (or isearch-yank-flag |
191f025a | 1629 | (<= (match-end 0) |
bd6a8414 | 1630 | (min isearch-opoint isearch-barrier)))) |
d64b1d96 | 1631 | (progn |
191f025a | 1632 | (setq isearch-success t |
ba653a53 | 1633 | isearch-error nil |
d64b1d96 RS |
1634 | isearch-other-end (match-end 0)) |
1635 | (if (and (eq isearch-case-fold-search t) search-upper-case) | |
1636 | (setq isearch-case-fold-search | |
1637 | (isearch-no-upper-case-p isearch-string isearch-regexp)))) | |
8e1cae6d JB |
1638 | ;; Not regexp, not reverse, or no match at point. |
1639 | (if (and isearch-other-end (not isearch-adjusted)) | |
1640 | (goto-char (if isearch-forward isearch-other-end | |
191f025a SM |
1641 | (min isearch-opoint |
1642 | isearch-barrier | |
8e1cae6d JB |
1643 | (1+ isearch-other-end))))) |
1644 | (isearch-search) | |
1645 | )) | |
1646 | (isearch-push-state) | |
1647 | (if isearch-op-fun (funcall isearch-op-fun)) | |
1648 | (isearch-update)) | |
1649 | ||
1650 | ||
08e3de69 | 1651 | ;; *, ?, }, and | chars can make a regexp more liberal. |
08200510 | 1652 | ;; They can make a regexp match sooner or make it succeed instead of failing. |
8e1cae6d JB |
1653 | ;; So go back to place last successful search started |
1654 | ;; or to the last ^S/^R (barrier), whichever is nearer. | |
08200510 | 1655 | ;; + needs no special handling because the string must match at least once. |
8e1cae6d | 1656 | |
08e3de69 EZ |
1657 | (defun isearch-backslash (str) |
1658 | "Return t if STR ends in an odd number of backslashes." | |
1659 | (= (mod (- (length str) (string-match "\\\\*\\'" str)) 2) 1)) | |
1660 | ||
1661 | (defun isearch-fallback (want-backslash &optional allow-invalid to-barrier) | |
1662 | "Return point to previous successful match to allow regexp liberalization. | |
1663 | \\<isearch-mode-map> | |
4b65254d | 1664 | Respects \\[isearch-repeat-forward] and \\[isearch-repeat-backward] by \ |
08e3de69 EZ |
1665 | stopping at `isearch-barrier' as needed. |
1666 | ||
6f2df0f4 JL |
1667 | Do nothing if a backslash is escaping the liberalizing character. |
1668 | If WANT-BACKSLASH is non-nil, invert this behavior (for \\} and \\|). | |
08e3de69 | 1669 | |
6f2df0f4 JL |
1670 | Do nothing if regexp has recently been invalid unless optional |
1671 | ALLOW-INVALID non-nil. | |
08e3de69 | 1672 | |
6f2df0f4 JL |
1673 | If optional TO-BARRIER non-nil, ignore previous matches and go exactly |
1674 | to the barrier." | |
08e3de69 EZ |
1675 | ;; (eq (not a) (not b)) makes all non-nil values equivalent |
1676 | (when (and isearch-regexp (eq (not (isearch-backslash isearch-string)) | |
1677 | (not want-backslash)) | |
1678 | ;; We have to check 2 stack frames because the last might be | |
1679 | ;; invalid just because of a backslash. | |
ba653a53 JL |
1680 | (or (not isearch-error) |
1681 | (not (isearch-error-state (cadr isearch-cmds))) | |
08e3de69 EZ |
1682 | allow-invalid)) |
1683 | (if to-barrier | |
1684 | (progn (goto-char isearch-barrier) | |
1685 | (setq isearch-adjusted t)) | |
1686 | (let* ((stack isearch-cmds) | |
1687 | (previous (cdr stack)) ; lookbelow in the stack | |
1688 | (frame (car stack))) | |
1689 | ;; Walk down the stack looking for a valid regexp (as of course only | |
1690 | ;; they can be the previous successful match); this conveniently | |
1691 | ;; removes all bracket-sets and groups that might be in the way, as | |
1692 | ;; well as partial \{\} constructs that the code below leaves behind. | |
1693 | ;; Also skip over postfix operators -- though horrid, | |
9b9a4122 | 1694 | ;; 'ab?\{5,6\}+\{1,2\}*' is perfectly valid. |
08e3de69 | 1695 | (while (and previous |
ba653a53 | 1696 | (or (isearch-error-state frame) |
1a699acf | 1697 | (let* ((string (isearch-string-state frame)) |
08e3de69 EZ |
1698 | (lchar (aref string (1- (length string))))) |
1699 | ;; The operators aren't always operators; check | |
1700 | ;; backslashes. This doesn't handle the case of | |
1701 | ;; operators at the beginning of the regexp not | |
1702 | ;; being special, but then we should fall back to | |
1703 | ;; the barrier anyway because it's all optional. | |
1704 | (if (isearch-backslash | |
1a699acf | 1705 | (isearch-string-state (car previous))) |
08e3de69 EZ |
1706 | (eq lchar ?\}) |
1707 | (memq lchar '(?* ?? ?+)))))) | |
1708 | (setq stack previous previous (cdr previous) frame (car stack))) | |
1709 | (when stack | |
1710 | ;; `stack' now refers the most recent valid regexp that is not at | |
1711 | ;; all optional in its last term. Now dig one level deeper and find | |
1712 | ;; what matched before that. | |
5a1f9fcf JL |
1713 | (let ((last-other-end |
1714 | (or (and (car previous) | |
1715 | (isearch-other-end-state (car previous))) | |
1716 | isearch-barrier))) | |
08e3de69 EZ |
1717 | (goto-char (if isearch-forward |
1718 | (max last-other-end isearch-barrier) | |
1719 | (min last-other-end isearch-barrier))) | |
6f2df0f4 | 1720 | (setq isearch-adjusted t))))))) |
8e1cae6d | 1721 | |
6b61353c KH |
1722 | (defun isearch-unread-key-sequence (keylist) |
1723 | "Unread the given key-sequence KEYLIST. | |
1724 | Scroll-bar or mode-line events are processed appropriately." | |
1725 | (cancel-kbd-macro-events) | |
1726 | (apply 'isearch-unread keylist) | |
1727 | ;; If the event was a scroll-bar or mode-line click, the event will have | |
1728 | ;; been prefixed by a symbol such as vertical-scroll-bar. We must remove | |
1729 | ;; it here, because this symbol will be attached to the event again next | |
1730 | ;; time it gets read by read-key-sequence. | |
1731 | ;; | |
1732 | ;; (Old comment from isearch-other-meta-char: "Note that we don't have to | |
1733 | ;; modify the event anymore in 21 because read_key_sequence no longer | |
1734 | ;; modifies events to produce fake prefix keys.") | |
1735 | (if (and (> (length keylist) 1) | |
1736 | (symbolp (car keylist)) | |
1737 | (listp (cadr keylist)) | |
1738 | (not (numberp (posn-point | |
1739 | (event-start (cadr keylist) ))))) | |
1740 | (pop unread-command-events))) | |
1741 | ||
1742 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1743 | ;; scrolling within Isearch mode. Alan Mackenzie (acm@muc.de), 2003/2/24 | |
1744 | ;; | |
1745 | ;; The idea here is that certain vertical scrolling commands (like C-l | |
1746 | ;; `recenter') should be usable WITHIN Isearch mode. For a command to be | |
1747 | ;; suitable, it must NOT alter the buffer, swap to another buffer or frame, | |
1748 | ;; tamper with isearch's state, or move point. It is unacceptable for the | |
1749 | ;; search string to be scrolled out of the current window. If a command | |
1750 | ;; attempts this, we scroll the text back again. | |
1751 | ;; | |
1752 | ;; We implement this feature with a property called `isearch-scroll'. | |
ad40eec5 JL |
1753 | ;; If a command's symbol has the value t for this property or for the |
1754 | ;; `scroll-command' property, it is a scrolling command. The feature | |
1755 | ;; needs to be enabled by setting the customizable variable | |
1756 | ;; `isearch-allow-scroll' to a non-nil value. | |
6b61353c KH |
1757 | ;; |
1758 | ;; The universal argument commands (e.g. C-u) in simple.el are marked | |
1759 | ;; as scrolling commands, and isearch.el has been amended to allow | |
1760 | ;; prefix arguments to be passed through to scrolling commands. Thus | |
1761 | ;; M-0 C-l will scroll point to the top of the window. | |
1762 | ;; | |
1763 | ;; Horizontal scrolling commands are currently not catered for. | |
1764 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1765 | ||
1766 | ;; Set the isearch-scroll property on some standard functions: | |
1767 | ;; Scroll-bar functions: | |
1768 | (if (fboundp 'scroll-bar-toolkit-scroll) | |
1769 | (put 'scroll-bar-toolkit-scroll 'isearch-scroll t)) | |
6b61353c KH |
1770 | (if (fboundp 'w32-handle-scroll-bar-event) |
1771 | (put 'w32-handle-scroll-bar-event 'isearch-scroll t)) | |
1772 | ||
ad40eec5 JL |
1773 | ;; Commands which scroll the window (some scroll commands |
1774 | ;; already have the `scroll-command' property on them): | |
6b61353c | 1775 | (put 'recenter 'isearch-scroll t) |
21d9ed8b | 1776 | (put 'recenter-top-bottom 'isearch-scroll t) |
6b61353c | 1777 | (put 'reposition-window 'isearch-scroll t) |
6b61353c KH |
1778 | |
1779 | ;; Commands which act on the other window | |
1780 | (put 'list-buffers 'isearch-scroll t) | |
1781 | (put 'scroll-other-window 'isearch-scroll t) | |
1782 | (put 'scroll-other-window-down 'isearch-scroll t) | |
1783 | (put 'beginning-of-buffer-other-window 'isearch-scroll t) | |
1784 | (put 'end-of-buffer-other-window 'isearch-scroll t) | |
1785 | ||
1786 | ;; Commands which change the window layout | |
1787 | (put 'delete-other-windows 'isearch-scroll t) | |
1788 | (put 'balance-windows 'isearch-scroll t) | |
1789 | (put 'split-window-vertically 'isearch-scroll t) | |
7f55d3b7 | 1790 | (put 'split-window-horizontally 'isearch-scroll t) |
6b61353c KH |
1791 | (put 'enlarge-window 'isearch-scroll t) |
1792 | ||
1793 | ;; Universal argument commands | |
1794 | (put 'universal-argument 'isearch-scroll t) | |
1795 | (put 'negative-argument 'isearch-scroll t) | |
1796 | (put 'digit-argument 'isearch-scroll t) | |
1797 | ||
1798 | (defcustom isearch-allow-scroll nil | |
9425f8e1 CY |
1799 | "Whether scrolling is allowed during incremental search. |
1800 | If non-nil, scrolling commands can be used in Isearch mode. | |
1801 | However, the current match will never scroll offscreen. | |
a4b000fb | 1802 | If nil, scrolling commands will first cancel Isearch mode." |
6b61353c KH |
1803 | :type 'boolean |
1804 | :group 'isearch) | |
1805 | ||
1806 | (defun isearch-string-out-of-window (isearch-point) | |
1807 | "Test whether the search string is currently outside of the window. | |
1808 | Return nil if it's completely visible, or if point is visible, | |
1809 | together with as much of the search string as will fit; the symbol | |
1810 | `above' if we need to scroll the text downwards; the symbol `below', | |
1811 | if upwards." | |
1812 | (let ((w-start (window-start)) | |
1813 | (w-end (window-end nil t)) | |
1814 | (w-L1 (save-excursion (move-to-window-line 1) (point))) | |
1815 | (w-L-1 (save-excursion (move-to-window-line -1) (point))) | |
1816 | start end) ; start and end of search string in buffer | |
1817 | (if isearch-forward | |
1818 | (setq end isearch-point start (or isearch-other-end isearch-point)) | |
1819 | (setq start isearch-point end (or isearch-other-end isearch-point))) | |
1820 | (cond ((or (and (>= start w-start) (<= end w-end)) | |
1821 | (if isearch-forward | |
1822 | (and (>= isearch-point w-L-1) (< isearch-point w-end)) ; point on Line -1 | |
1823 | (and (>= isearch-point w-start) (< isearch-point w-L1)))) ; point on Line 0 | |
1824 | nil) | |
1825 | ((and (< start w-start) | |
1826 | (< isearch-point w-L-1)) | |
1827 | 'above) | |
1828 | (t 'below)))) | |
1829 | ||
1830 | (defun isearch-back-into-window (above isearch-point) | |
1831 | "Scroll the window to bring the search string back into view. | |
1832 | Restore point to ISEARCH-POINT in the process. ABOVE is t when the | |
1833 | search string is above the top of the window, nil when it is beneath | |
1834 | the bottom." | |
1835 | (let (start end) | |
1836 | (if isearch-forward | |
1837 | (setq end isearch-point start (or isearch-other-end isearch-point)) | |
1838 | (setq start isearch-point end (or isearch-other-end isearch-point))) | |
1839 | (if above | |
1840 | (progn | |
1841 | (goto-char start) | |
1842 | (recenter 0) | |
1843 | (when (>= isearch-point (window-end nil t)) | |
1844 | (goto-char isearch-point) | |
1845 | (recenter -1))) | |
1846 | (goto-char end) | |
1847 | (recenter -1) | |
1848 | (when (< isearch-point (window-start)) | |
1849 | (goto-char isearch-point) | |
1850 | (recenter 0)))) | |
1851 | (goto-char isearch-point)) | |
1852 | ||
1853 | (defun isearch-reread-key-sequence-naturally (keylist) | |
1854 | "Reread key sequence KEYLIST with Isearch mode's keymap deactivated. | |
1855 | Return the key sequence as a string/vector." | |
1856 | (isearch-unread-key-sequence keylist) | |
1857 | (let (overriding-terminal-local-map) | |
1858 | (read-key-sequence nil))) ; This will go through function-key-map, if nec. | |
1859 | ||
1860 | (defun isearch-lookup-scroll-key (key-seq) | |
1861 | "If KEY-SEQ is bound to a scrolling command, return it as a symbol. | |
1862 | Otherwise return nil." | |
1863 | (let* ((overriding-terminal-local-map nil) | |
1864 | (binding (key-binding key-seq))) | |
1865 | (and binding (symbolp binding) (commandp binding) | |
ad40eec5 JL |
1866 | (or (eq (get binding 'isearch-scroll) t) |
1867 | (eq (get binding 'scroll-command) t)) | |
6b61353c | 1868 | binding))) |
8e1cae6d | 1869 | |
b457cc3b | 1870 | (defalias 'isearch-other-control-char 'isearch-other-meta-char) |
8e1cae6d | 1871 | |
6b61353c KH |
1872 | (defun isearch-other-meta-char (&optional arg) |
1873 | "Process a miscellaneous key sequence in Isearch mode. | |
1874 | ||
1875 | Try to convert the current key-sequence to something usable in Isearch | |
1876 | mode, either by converting it with `function-key-map', downcasing a | |
1877 | key with C-<upper case>, or finding a \"scrolling command\" bound to | |
1878 | it. \(In the last case, we may have to read more events.) If so, | |
1879 | either unread the converted sequence or execute the command. | |
1880 | ||
1881 | Otherwise, if `search-exit-option' is non-nil (the default) unread the | |
1882 | key-sequence and exit the search normally. If it is the symbol | |
1883 | `edit', the search string is edited in the minibuffer and the meta | |
1884 | character is unread so that it applies to editing the string. | |
1885 | ||
1886 | ARG is the prefix argument. It will be transmitted through to the | |
1887 | scrolling command or to the command whose key-sequence exits | |
1888 | Isearch mode." | |
1889 | (interactive "P") | |
1890 | (let* ((key (if current-prefix-arg ; not nec the same as ARG | |
1891 | (substring (this-command-keys) universal-argument-num-events) | |
1892 | (this-command-keys))) | |
c6431f12 | 1893 | (main-event (aref key 0)) |
6b61353c KH |
1894 | (keylist (listify-key-sequence key)) |
1895 | scroll-command isearch-point) | |
24b5caec | 1896 | (cond ((and (= (length key) 1) |
c40bb1ba | 1897 | (let ((lookup (lookup-key local-function-key-map key))) |
3f866b53 KH |
1898 | (not (or (null lookup) (integerp lookup) |
1899 | (keymapp lookup))))) | |
24b5caec RS |
1900 | ;; Handle a function key that translates into something else. |
1901 | ;; If the key has a global definition too, | |
1902 | ;; exit and unread the key itself, so its global definition runs. | |
1903 | ;; Otherwise, unread the translation, | |
1904 | ;; so that the translated key takes effect within isearch. | |
d94eb6eb | 1905 | (cancel-kbd-macro-events) |
24b5caec | 1906 | (if (lookup-key global-map key) |
02b2f510 | 1907 | (progn |
24b5caec RS |
1908 | (isearch-done) |
1909 | (apply 'isearch-unread keylist)) | |
a5cc922e | 1910 | (setq keylist |
c40bb1ba | 1911 | (listify-key-sequence (lookup-key local-function-key-map key))) |
a5cc922e KH |
1912 | (while keylist |
1913 | (setq key (car keylist)) | |
1914 | ;; If KEY is a printing char, we handle it here | |
1915 | ;; directly to avoid the input method and keyboard | |
1916 | ;; coding system translating it. | |
1917 | (if (and (integerp key) | |
6480c508 | 1918 | (>= key ?\s) (/= key 127) (< key 256)) |
a5cc922e KH |
1919 | (progn |
1920 | (isearch-process-search-char key) | |
1921 | (setq keylist (cdr keylist))) | |
1922 | ;; As the remaining keys in KEYLIST can't be handled | |
1923 | ;; here, we must reread them. | |
1924 | (apply 'isearch-unread keylist) | |
1925 | (setq keylist nil))))) | |
24b5caec | 1926 | ( |
c6431f12 KH |
1927 | ;; Handle an undefined shifted control character |
1928 | ;; by downshifting it if that makes it defined. | |
1929 | ;; (As read-key-sequence would normally do, | |
1930 | ;; if we didn't have a default definition.) | |
1931 | (let ((mods (event-modifiers main-event))) | |
1932 | (and (integerp main-event) | |
1933 | (memq 'shift mods) | |
1934 | (memq 'control mods) | |
f438bf5c EZ |
1935 | (not (memq (lookup-key isearch-mode-map |
1936 | (let ((copy (copy-sequence key))) | |
1937 | (aset copy 0 | |
1938 | (- main-event | |
1939 | (- ?\C-\S-a ?\C-a))) | |
1940 | copy) | |
1941 | nil) | |
1942 | '(nil | |
1943 | isearch-other-control-char))))) | |
c6431f12 | 1944 | (setcar keylist (- main-event (- ?\C-\S-a ?\C-a))) |
d94eb6eb | 1945 | (cancel-kbd-macro-events) |
c6431f12 KH |
1946 | (apply 'isearch-unread keylist)) |
1947 | ((eq search-exit-option 'edit) | |
1948 | (apply 'isearch-unread keylist) | |
1949 | (isearch-edit-string)) | |
6b61353c KH |
1950 | ;; Handle a scrolling function. |
1951 | ((and isearch-allow-scroll | |
1952 | (progn (setq key (isearch-reread-key-sequence-naturally keylist)) | |
1953 | (setq keylist (listify-key-sequence key)) | |
1954 | (setq main-event (aref key 0)) | |
1955 | (setq scroll-command (isearch-lookup-scroll-key key)))) | |
1956 | ;; From this point onwards, KEY, KEYLIST and MAIN-EVENT hold a | |
1957 | ;; complete key sequence, possibly as modified by function-key-map, | |
1958 | ;; not merely the one or two event fragment which invoked | |
1959 | ;; isearch-other-meta-char in the first place. | |
1960 | (setq isearch-point (point)) | |
1961 | (setq prefix-arg arg) | |
1962 | (command-execute scroll-command) | |
1963 | (let ((ab-bel (isearch-string-out-of-window isearch-point))) | |
1964 | (if ab-bel | |
35904fd3 | 1965 | (isearch-back-into-window (eq ab-bel 'above) isearch-point) |
d85519bb | 1966 | (goto-char isearch-point))) |
6b61353c | 1967 | (isearch-update)) |
72a69d7f JL |
1968 | ;; A mouse click on the isearch message starts editing the search string |
1969 | ((and (eq (car-safe main-event) 'down-mouse-1) | |
1970 | (window-minibuffer-p (posn-window (event-start main-event)))) | |
1971 | ;; Swallow the up-event. | |
1972 | (read-event) | |
1973 | (isearch-edit-string)) | |
c6431f12 KH |
1974 | (search-exit-option |
1975 | (let (window) | |
6b61353c KH |
1976 | (isearch-unread-key-sequence keylist) |
1977 | (setq main-event (car unread-command-events)) | |
3fb01f36 | 1978 | |
346f18dc GM |
1979 | ;; If we got a mouse click event, that event contains the |
1980 | ;; window clicked on. maybe it was read with the buffer | |
c6431f12 KH |
1981 | ;; it was clicked on. If so, that buffer, not the current one, |
1982 | ;; is in isearch mode. So end the search in that buffer. | |
346f18dc GM |
1983 | |
1984 | ;; ??? I have no idea what this if checks for, but it's | |
1985 | ;; obviously wrong for the case that a down-mouse event | |
1986 | ;; on another window invokes this function. The event | |
1987 | ;; will contain the window clicked on and that window's | |
b48ca14f | 1988 | ;; buffer is certainly not always in Isearch mode. |
346f18dc GM |
1989 | ;; |
1990 | ;; Leave the code in, but check for current buffer not | |
1991 | ;; being in Isearch mode for now, until someone tells | |
1992 | ;; what it's really supposed to do. | |
1993 | ;; | |
1994 | ;; --gerd 2001-08-10. | |
1995 | ||
1996 | (if (and (not isearch-mode) | |
1997 | (listp main-event) | |
c6431f12 | 1998 | (setq window (posn-window (event-start main-event))) |
4fd017e7 RS |
1999 | (windowp window) |
2000 | (or (> (minibuffer-depth) 0) | |
2001 | (not (window-minibuffer-p window)))) | |
00c42405 | 2002 | (with-current-buffer (window-buffer window) |
0352b205 RS |
2003 | (isearch-done) |
2004 | (isearch-clean-overlays)) | |
2005 | (isearch-done) | |
6b61353c KH |
2006 | (isearch-clean-overlays) |
2007 | (setq prefix-arg arg)))) | |
2008 | (t;; otherwise nil | |
c6431f12 | 2009 | (isearch-process-search-string key key))))) |
8e1cae6d | 2010 | |
8e1cae6d JB |
2011 | (defun isearch-quote-char () |
2012 | "Quote special characters for incremental search." | |
2013 | (interactive) | |
8bc15fa8 | 2014 | (let ((char (read-quoted-char (isearch-message t)))) |
3c75023f | 2015 | ;; Assume character codes 0200 - 0377 stand for characters in some |
c20d35d5 KH |
2016 | ;; single-byte character set, and convert them to Emacs |
2017 | ;; characters. | |
6480c508 | 2018 | (if (and isearch-regexp (= char ?\s)) |
be02a7ed | 2019 | (if (subregexp-context-p isearch-string (length isearch-string)) |
30bb1443 SM |
2020 | (isearch-process-search-string "[ ]" " ") |
2021 | (isearch-process-search-char char)) | |
ab67e8b6 RS |
2022 | (and enable-multibyte-characters |
2023 | (>= char ?\200) | |
2024 | (<= char ?\377) | |
2025 | (setq char (unibyte-char-to-multibyte char))) | |
2026 | (isearch-process-search-char char)))) | |
8e1cae6d | 2027 | |
8e1cae6d | 2028 | (defun isearch-printing-char () |
b68c164d | 2029 | "Add this ordinary printing character to the search string and search." |
8e1cae6d | 2030 | (interactive) |
8989a920 | 2031 | (let ((char last-command-event)) |
45b94eb2 | 2032 | (if (= char ?\S-\ ) |
6480c508 | 2033 | (setq char ?\s)) |
758710cb KH |
2034 | (if current-input-method |
2035 | (isearch-process-search-multibyte-characters char) | |
2036 | (isearch-process-search-char char)))) | |
8e1cae6d | 2037 | |
8e1cae6d | 2038 | (defun isearch-process-search-char (char) |
6f2df0f4 JL |
2039 | ;; * and ? are special in regexps when not preceded by \. |
2040 | ;; } and | are special in regexps when preceded by \. | |
2041 | ;; Nothing special for + because it matches at least once. | |
2042 | (cond | |
2043 | ((memq char '(?* ??)) (isearch-fallback nil)) | |
2044 | ((eq char ?\}) (isearch-fallback t t)) | |
2045 | ((eq char ?|) (isearch-fallback t nil t))) | |
2046 | ||
8e1cae6d | 2047 | ;; Append the char to the search string, update the message and re-search. |
191f025a SM |
2048 | (isearch-process-search-string |
2049 | (char-to-string char) | |
8f3c1d76 | 2050 | (if (>= char ?\200) |
01a6ef79 RS |
2051 | (char-to-string char) |
2052 | (isearch-text-char-description char)))) | |
8e1cae6d JB |
2053 | |
2054 | (defun isearch-process-search-string (string message) | |
2055 | (setq isearch-string (concat isearch-string string) | |
2056 | isearch-message (concat isearch-message message)) | |
2057 | (isearch-search-and-update)) | |
2058 | ||
2059 | \f | |
8e1cae6d JB |
2060 | ;; Search Ring |
2061 | ||
08200510 RS |
2062 | (defun isearch-ring-adjust1 (advance) |
2063 | ;; Helper for isearch-ring-adjust | |
2064 | (let* ((ring (if isearch-regexp regexp-search-ring search-ring)) | |
8e1cae6d JB |
2065 | (length (length ring)) |
2066 | (yank-pointer-name (if isearch-regexp | |
08200510 | 2067 | 'regexp-search-ring-yank-pointer |
8e1cae6d JB |
2068 | 'search-ring-yank-pointer)) |
2069 | (yank-pointer (eval yank-pointer-name))) | |
2070 | (if (zerop length) | |
2071 | () | |
2072 | (set yank-pointer-name | |
2073 | (setq yank-pointer | |
11dcdbb2 | 2074 | (mod (+ (or yank-pointer (if advance 0 -1)) |
ffbc30b2 PE |
2075 | (if advance -1 1)) |
2076 | length))) | |
a5dcf63f | 2077 | (setq isearch-string (nth yank-pointer ring) |
08200510 RS |
2078 | isearch-message (mapconcat 'isearch-text-char-description |
2079 | isearch-string ""))))) | |
2080 | ||
2081 | (defun isearch-ring-adjust (advance) | |
2082 | ;; Helper for isearch-ring-advance and isearch-ring-retreat | |
08200510 | 2083 | (isearch-ring-adjust1 advance) |
08200510 RS |
2084 | (if search-ring-update |
2085 | (progn | |
2086 | (isearch-search) | |
a71a98cf | 2087 | (isearch-push-state) |
08200510 | 2088 | (isearch-update)) |
a71a98cf JL |
2089 | ;; Otherwise, edit the search string instead. Note that there is |
2090 | ;; no need to push the search state after isearch-edit-string here | |
2091 | ;; since isearch-edit-string already pushes its state | |
2092 | (isearch-edit-string))) | |
8e1cae6d JB |
2093 | |
2094 | (defun isearch-ring-advance () | |
2095 | "Advance to the next search string in the ring." | |
08200510 | 2096 | ;; This could be more general to handle a prefix arg, but who would use it. |
8e1cae6d JB |
2097 | (interactive) |
2098 | (isearch-ring-adjust 'advance)) | |
2099 | ||
2100 | (defun isearch-ring-retreat () | |
2101 | "Retreat to the previous search string in the ring." | |
2102 | (interactive) | |
2103 | (isearch-ring-adjust nil)) | |
2104 | ||
08200510 RS |
2105 | (defun isearch-complete1 () |
2106 | ;; Helper for isearch-complete and isearch-complete-edit | |
2107 | ;; Return t if completion OK, nil if no completion exists. | |
2108 | (let* ((ring (if isearch-regexp regexp-search-ring search-ring)) | |
08200510 | 2109 | (completion-ignore-case case-fold-search) |
c789e608 | 2110 | (completion (try-completion isearch-string ring))) |
08200510 RS |
2111 | (cond |
2112 | ((eq completion t) | |
2113 | ;; isearch-string stays the same | |
2114 | t) | |
2115 | ((or completion ; not nil, must be a string | |
b7852303 | 2116 | (= 0 (length isearch-string))) ; shouldn't have to say this |
08200510 | 2117 | (if (equal completion isearch-string) ;; no extension? |
36bcac3f RS |
2118 | (progn |
2119 | (if completion-auto-help | |
2120 | (with-output-to-temp-buffer "*Isearch completions*" | |
b48ca14f | 2121 | (display-completion-list |
c789e608 | 2122 | (all-completions isearch-string ring)))) |
36bcac3f RS |
2123 | t) |
2124 | (and completion | |
2125 | (setq isearch-string completion)))) | |
08200510 RS |
2126 | (t |
2127 | (message "No completion") ; waits a second if in minibuffer | |
2128 | nil)))) | |
2129 | ||
2130 | (defun isearch-complete () | |
2131 | "Complete the search string from the strings on the search ring. | |
2132 | The completed string is then editable in the minibuffer. | |
2133 | If there is no completion possible, say so and continue searching." | |
2134 | (interactive) | |
2135 | (if (isearch-complete1) | |
3ae4c509 RS |
2136 | (progn (setq isearch-message |
2137 | (mapconcat 'isearch-text-char-description | |
2138 | isearch-string "")) | |
2139 | (isearch-edit-string)) | |
08200510 RS |
2140 | ;; else |
2141 | (sit-for 1) | |
2142 | (isearch-update))) | |
8e1cae6d | 2143 | |
08200510 RS |
2144 | (defun isearch-complete-edit () |
2145 | "Same as `isearch-complete' except in the minibuffer." | |
2146 | (interactive) | |
c789e608 | 2147 | (setq isearch-string (field-string)) |
08200510 | 2148 | (if (isearch-complete1) |
8e1cae6d | 2149 | (progn |
b7b66466 | 2150 | (delete-field) |
08200510 | 2151 | (insert isearch-string)))) |
8e1cae6d JB |
2152 | |
2153 | \f | |
8e1cae6d JB |
2154 | ;; Message string |
2155 | ||
2156 | (defun isearch-message (&optional c-q-hack ellipsis) | |
2157 | ;; Generate and print the message string. | |
2158 | (let ((cursor-in-echo-area ellipsis) | |
d8891294 JL |
2159 | (m isearch-message) |
2160 | (cmds isearch-cmds) | |
2161 | succ-msg) | |
2162 | (when (or (not isearch-success) isearch-error) | |
2163 | ;; Highlight failed part | |
2164 | (while (or (not (isearch-success-state (car cmds))) | |
2165 | (isearch-error-state (car cmds))) | |
2166 | (pop cmds)) | |
2167 | (setq succ-msg (and cmds (isearch-message-state (car cmds))) | |
2168 | m (copy-sequence m)) | |
a71a98cf JL |
2169 | (add-text-properties |
2170 | (if (and (stringp succ-msg) | |
2171 | (< (length succ-msg) (length m)) | |
2172 | (equal succ-msg (substring m 0 (length succ-msg)))) | |
2173 | (length succ-msg) | |
2174 | 0) | |
2175 | (length m) '(face isearch-fail) m) | |
d8891294 JL |
2176 | ;; Highlight failed trailing whitespace |
2177 | (when (string-match " +$" m) | |
2178 | (add-text-properties (match-beginning 0) (match-end 0) | |
2179 | '(face trailing-whitespace) m))) | |
2180 | (setq m (concat | |
2181 | (isearch-message-prefix c-q-hack ellipsis isearch-nonincremental) | |
2182 | m | |
2183 | (isearch-message-suffix c-q-hack ellipsis))) | |
2184 | (if c-q-hack m (let ((message-log-max nil)) (message "%s" m))))) | |
8e1cae6d | 2185 | |
06b60517 | 2186 | (defun isearch-message-prefix (&optional _c-q-hack ellipsis nonincremental) |
8e1cae6d JB |
2187 | ;; If about to search, and previous search regexp was invalid, |
2188 | ;; check that it still is. If it is valid now, | |
2189 | ;; let the message we display while searching say that it is valid. | |
ba653a53 | 2190 | (and isearch-error ellipsis |
8e1cae6d JB |
2191 | (condition-case () |
2192 | (progn (re-search-forward isearch-string (point) t) | |
ba653a53 | 2193 | (setq isearch-error nil)) |
8e1cae6d JB |
2194 | (error nil))) |
2195 | ;; If currently failing, display no ellipsis. | |
2196 | (or isearch-success (setq ellipsis nil)) | |
2197 | (let ((m (concat (if isearch-success "" "failing ") | |
d85519bb | 2198 | (if isearch-adjusted "pending " "") |
7badea30 | 2199 | (if (and isearch-wrapped |
6a18e4e7 | 2200 | (not isearch-wrap-function) |
7badea30 RS |
2201 | (if isearch-forward |
2202 | (> (point) isearch-opoint) | |
2203 | (< (point) isearch-opoint))) | |
2204 | "over") | |
8e1cae6d | 2205 | (if isearch-wrapped "wrapped ") |
08200510 | 2206 | (if isearch-word "word " "") |
8e1cae6d | 2207 | (if isearch-regexp "regexp " "") |
3c0aa5e6 | 2208 | (if multi-isearch-next-buffer-current-function "multi " "") |
ee9b85a8 | 2209 | (or isearch-message-prefix-add "") |
08200510 | 2210 | (if nonincremental "search" "I-search") |
f46d5091 | 2211 | (if isearch-forward "" " backward") |
5b56d4e4 KH |
2212 | (if current-input-method |
2213 | (concat " [" current-input-method-title "]: ") | |
f46d5091 | 2214 | ": ") |
8e1cae6d | 2215 | ))) |
aec11aff KS |
2216 | (propertize (concat (upcase (substring m 0 1)) (substring m 1)) |
2217 | 'face 'minibuffer-prompt))) | |
8e1cae6d | 2218 | |
06b60517 | 2219 | (defun isearch-message-suffix (&optional c-q-hack _ellipsis) |
8e1cae6d | 2220 | (concat (if c-q-hack "^Q" "") |
ba653a53 JL |
2221 | (if isearch-error |
2222 | (concat " [" isearch-error "]") | |
ee9b85a8 JL |
2223 | "") |
2224 | (or isearch-message-suffix-add ""))) | |
8e1cae6d JB |
2225 | |
2226 | \f | |
191f025a SM |
2227 | ;; Searching |
2228 | ||
512bfd85 | 2229 | (defvar isearch-search-fun-function nil |
c7f98048 | 2230 | "Overrides the default `isearch-search-fun' behaviour. |
f158badc LMI |
2231 | This variable's value should be a function, which will be called |
2232 | with no arguments, and should return a function that takes three | |
2233 | arguments: STRING, BOUND, and NOERROR. | |
2234 | ||
2235 | This returned function will be used by `isearch-search-string' to | |
2236 | search for the first occurrence of STRING or its translation.") | |
191f025a SM |
2237 | |
2238 | (defun isearch-search-fun () | |
2239 | "Return the function to use for the search. | |
2240 | Can be changed via `isearch-search-fun-function' for special needs." | |
2241 | (if isearch-search-fun-function | |
2242 | (funcall isearch-search-fun-function) | |
2243 | (cond | |
2244 | (isearch-word | |
b87573f0 JL |
2245 | ;; Use lax versions to not fail at the end of the word while |
2246 | ;; the user adds and removes characters in the search string | |
2247 | ;; (or when using nonincremental word isearch) | |
2248 | (if (or isearch-nonincremental | |
2249 | (eq (length isearch-string) | |
2250 | (length (isearch-string-state (car isearch-cmds))))) | |
2251 | (if isearch-forward 'word-search-forward 'word-search-backward) | |
2252 | (if isearch-forward 'word-search-forward-lax 'word-search-backward-lax))) | |
191f025a SM |
2253 | (isearch-regexp |
2254 | (if isearch-forward 're-search-forward 're-search-backward)) | |
2255 | (t | |
2256 | (if isearch-forward 'search-forward 'search-backward))))) | |
8e1cae6d | 2257 | |
6cf157df | 2258 | (defun isearch-search-string (string bound noerror) |
4b65254d JB |
2259 | "Search for the first occurrence of STRING or its translation. |
2260 | If found, move point to the end of the occurrence, | |
2261 | update the match data, and return point." | |
3be5da9e SM |
2262 | (let* ((func (isearch-search-fun)) |
2263 | (pos1 (save-excursion (funcall func string bound noerror))) | |
2264 | pos2) | |
0d58bedd EZ |
2265 | (when (and |
2266 | ;; Avoid "obsolete" warnings for translation-table-for-input. | |
2267 | (with-no-warnings | |
2268 | (char-table-p translation-table-for-input)) | |
2269 | (multibyte-string-p string) | |
2270 | ;; Minor optimization. | |
2271 | (string-match-p "[^[:ascii:]]" string)) | |
3be5da9e SM |
2272 | (let ((translated |
2273 | (apply 'string | |
2274 | (mapcar (lambda (c) | |
0d58bedd EZ |
2275 | (or |
2276 | ;; Avoid "obsolete" warnings for | |
2277 | ;; translation-table-for-input. | |
2278 | (with-no-warnings | |
2279 | (aref translation-table-for-input c)) | |
2280 | c)) | |
3be5da9e SM |
2281 | string))) |
2282 | match-data) | |
2283 | (when translated | |
2284 | (save-match-data | |
2285 | (save-excursion | |
2286 | (if (setq pos2 (funcall func translated bound noerror)) | |
2287 | (setq match-data (match-data t))))) | |
2288 | (when (and pos2 | |
2289 | (or (not pos1) | |
2290 | (if isearch-forward (< pos2 pos1) (> pos2 pos1)))) | |
2291 | (setq pos1 pos2) | |
2292 | (set-match-data match-data))))) | |
d240f431 JL |
2293 | (when pos1 |
2294 | ;; When using multiple buffers isearch, switch to the new buffer here, | |
2295 | ;; because `save-excursion' above doesn't allow doing it inside funcall. | |
3c0aa5e6 JL |
2296 | (if (and multi-isearch-next-buffer-current-function |
2297 | (buffer-live-p multi-isearch-current-buffer)) | |
2298 | (switch-to-buffer multi-isearch-current-buffer)) | |
3be5da9e SM |
2299 | (goto-char pos1) |
2300 | pos1))) | |
6cf157df | 2301 | |
8e1cae6d JB |
2302 | (defun isearch-search () |
2303 | ;; Do the search with the current search string. | |
ac475d3a JL |
2304 | (if isearch-message-function |
2305 | (funcall isearch-message-function nil t) | |
2306 | (isearch-message nil t)) | |
4453091d | 2307 | (if (and (eq isearch-case-fold-search t) search-upper-case) |
b78559b0 RS |
2308 | (setq isearch-case-fold-search |
2309 | (isearch-no-upper-case-p isearch-string isearch-regexp))) | |
8e1cae6d | 2310 | (condition-case lossage |
5e189f39 | 2311 | (let ((inhibit-point-motion-hooks |
f2fd3261 | 2312 | (and (eq isearch-filter-predicate 'isearch-filter-visible) |
5e189f39 | 2313 | search-invisible)) |
79c7a4fa | 2314 | (inhibit-quit nil) |
86bfaffe | 2315 | (case-fold-search isearch-case-fold-search) |
ab67e8b6 | 2316 | (search-spaces-regexp search-whitespace-regexp) |
86bfaffe | 2317 | (retry t)) |
ba653a53 | 2318 | (setq isearch-error nil) |
86bfaffe RS |
2319 | (while retry |
2320 | (setq isearch-success | |
6cf157df | 2321 | (isearch-search-string isearch-string nil t)) |
2f669fac JL |
2322 | ;; Clear RETRY unless the search predicate says |
2323 | ;; to skip this search hit. | |
5e189f39 | 2324 | (if (or (not isearch-success) |
86bfaffe RS |
2325 | (bobp) (eobp) |
2326 | (= (match-beginning 0) (match-end 0)) | |
2f669fac | 2327 | (funcall isearch-filter-predicate |
5e189f39 | 2328 | (match-beginning 0) (match-end 0))) |
86bfaffe | 2329 | (setq retry nil))) |
99ae9e9f | 2330 | (setq isearch-just-started nil) |
8e1cae6d JB |
2331 | (if isearch-success |
2332 | (setq isearch-other-end | |
2333 | (if isearch-forward (match-beginning 0) (match-end 0))))) | |
2334 | ||
d32696d4 | 2335 | (quit (isearch-unread ?\C-g) |
8e1cae6d JB |
2336 | (setq isearch-success nil)) |
2337 | ||
191f025a | 2338 | (invalid-regexp |
ba653a53 | 2339 | (setq isearch-error (car (cdr lossage))) |
8e1cae6d JB |
2340 | (if (string-match |
2341 | "\\`Premature \\|\\`Unmatched \\|\\`Invalid " | |
ba653a53 JL |
2342 | isearch-error) |
2343 | (setq isearch-error "incomplete input"))) | |
2344 | ||
2345 | (search-failed | |
2346 | (setq isearch-success nil) | |
2347 | (setq isearch-error (nth 2 lossage))) | |
2348 | ||
f1c03125 | 2349 | (error |
c982ab21 | 2350 | ;; stack overflow in regexp search. |
ba653a53 | 2351 | (setq isearch-error (format "%s" lossage)))) |
8e1cae6d JB |
2352 | |
2353 | (if isearch-success | |
2354 | nil | |
2355 | ;; Ding if failed this time after succeeding last time. | |
1a699acf | 2356 | (and (isearch-success-state (car isearch-cmds)) |
8e1cae6d | 2357 | (ding)) |
6a18e4e7 JL |
2358 | (if (functionp (isearch-pop-fun-state (car isearch-cmds))) |
2359 | (funcall (isearch-pop-fun-state (car isearch-cmds)) (car isearch-cmds))) | |
1a699acf | 2360 | (goto-char (isearch-point-state (car isearch-cmds))))) |
8e1cae6d | 2361 | |
0352b205 | 2362 | |
191f025a | 2363 | ;; Called when opening an overlay, and we are still in isearch. |
0352b205 | 2364 | (defun isearch-open-overlay-temporary (ov) |
b48ca14f | 2365 | (if (not (null (overlay-get ov 'isearch-open-invisible-temporary))) |
0352b205 RS |
2366 | ;; Some modes would want to open the overlays temporary during |
2367 | ;; isearch in their own way, they should set the | |
2368 | ;; `isearch-open-invisible-temporary' to a function doing this. | |
2369 | (funcall (overlay-get ov 'isearch-open-invisible-temporary) ov nil) | |
2370 | ;; Store the values for the `invisible' and `intangible' | |
2371 | ;; properties, and then set them to nil. This way the text hidden | |
2372 | ;; by this overlay becomes visible. | |
2373 | ||
380866a2 | 2374 | ;; Do we really need to set the `intangible' property to t? Can we |
0352b205 RS |
2375 | ;; have the point inside an overlay with an `intangible' property? |
2376 | ;; In 19.34 this does not exist so I cannot test it. | |
2377 | (overlay-put ov 'isearch-invisible (overlay-get ov 'invisible)) | |
2378 | (overlay-put ov 'isearch-intangible (overlay-get ov 'intangible)) | |
2379 | (overlay-put ov 'invisible nil) | |
2380 | (overlay-put ov 'intangible nil))) | |
2381 | ||
2382 | ||
191f025a SM |
2383 | ;; This is called at the end of isearch. It will open the overlays |
2384 | ;; that contain the latest match. Obviously in case of a C-g the | |
2385 | ;; point returns to the original location which surely is not contain | |
2386 | ;; in any of these overlays, se we are safe in this case too. | |
0352b205 | 2387 | (defun isearch-open-necessary-overlays (ov) |
191f025a | 2388 | (let ((inside-overlay (and (> (point) (overlay-start ov)) |
0352b205 RS |
2389 | (< (point) (overlay-end ov)))) |
2390 | ;; If this exists it means that the overlay was opened using | |
2391 | ;; this function, not by us tweaking the overlay properties. | |
2392 | (fct-temp (overlay-get ov 'isearch-open-invisible-temporary))) | |
2393 | (when (or inside-overlay (not fct-temp)) | |
2394 | ;; restore the values for the `invisible' and `intangible' | |
2395 | ;; properties | |
2396 | (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible)) | |
2397 | (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible)) | |
2398 | (overlay-put ov 'isearch-invisible nil) | |
2399 | (overlay-put ov 'isearch-intangible nil)) | |
2400 | (if inside-overlay | |
2401 | (funcall (overlay-get ov 'isearch-open-invisible) ov) | |
2402 | (if fct-temp | |
2403 | (funcall fct-temp ov t))))) | |
2404 | ||
191f025a SM |
2405 | ;; This is called when exiting isearch. It closes the temporary |
2406 | ;; opened overlays, except the ones that contain the latest match. | |
0352b205 RS |
2407 | (defun isearch-clean-overlays () |
2408 | (when isearch-opened-overlays | |
02b2f510 | 2409 | (mapc 'isearch-open-necessary-overlays isearch-opened-overlays) |
0352b205 RS |
2410 | (setq isearch-opened-overlays nil))) |
2411 | ||
fc0eccfc GM |
2412 | |
2413 | (defun isearch-intersects-p (start0 end0 start1 end1) | |
2414 | "Return t if regions START0..END0 and START1..END1 intersect." | |
eaa493df GM |
2415 | (or (and (>= start0 start1) (< start0 end1)) |
2416 | (and (> end0 start1) (<= end0 end1)) | |
2417 | (and (>= start1 start0) (< start1 end0)) | |
2418 | (and (> end1 start0) (<= end1 end0)))) | |
fc0eccfc GM |
2419 | |
2420 | ||
191f025a SM |
2421 | ;; Verify if the current match is outside of each element of |
2422 | ;; `isearch-opened-overlays', if so close that overlay. | |
fc0eccfc GM |
2423 | |
2424 | (defun isearch-close-unnecessary-overlays (begin end) | |
2425 | (let ((overlays isearch-opened-overlays)) | |
0352b205 | 2426 | (setq isearch-opened-overlays nil) |
fc0eccfc GM |
2427 | (dolist (ov overlays) |
2428 | (if (isearch-intersects-p begin end (overlay-start ov) (overlay-end ov)) | |
2429 | (push ov isearch-opened-overlays) | |
2430 | (let ((fct-temp (overlay-get ov 'isearch-open-invisible-temporary))) | |
2431 | (if fct-temp | |
2432 | ;; If this exists it means that the overlay was opened | |
2433 | ;; using this function, not by us tweaking the overlay | |
2434 | ;; properties. | |
2435 | (funcall fct-temp ov t) | |
2436 | (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible)) | |
2437 | (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible)) | |
2438 | (overlay-put ov 'isearch-invisible nil) | |
2439 | (overlay-put ov 'isearch-intangible nil))))))) | |
2440 | ||
0352b205 | 2441 | |
86bfaffe | 2442 | (defun isearch-range-invisible (beg end) |
79c7a4fa | 2443 | "Return t if all the text from BEG to END is invisible." |
cd59ea72 SM |
2444 | (when (/= beg end) |
2445 | ;; Check that invisibility runs up to END. | |
2446 | (save-excursion | |
2447 | (goto-char beg) | |
2448 | (let (;; can-be-opened keeps track if we can open some overlays. | |
2449 | (can-be-opened (eq search-invisible 'open)) | |
2450 | ;; the list of overlays that could be opened | |
2451 | (crt-overlays nil)) | |
2452 | (when (and can-be-opened isearch-hide-immediately) | |
2453 | (isearch-close-unnecessary-overlays beg end)) | |
2454 | ;; If the following character is currently invisible, | |
2455 | ;; skip all characters with that same `invisible' property value. | |
2456 | ;; Do that over and over. | |
4d90d6d0 | 2457 | (while (and (< (point) end) (invisible-p (point))) |
66e2e71d | 2458 | (if (invisible-p (get-text-property (point) 'invisible)) |
cd59ea72 SM |
2459 | (progn |
2460 | (goto-char (next-single-property-change (point) 'invisible | |
2461 | nil end)) | |
2462 | ;; if text is hidden by an `invisible' text property | |
2463 | ;; we cannot open it at all. | |
2464 | (setq can-be-opened nil)) | |
2465 | (when can-be-opened | |
2466 | (let ((overlays (overlays-at (point))) | |
2467 | ov-list | |
2468 | o | |
2469 | invis-prop) | |
2470 | (while overlays | |
2471 | (setq o (car overlays) | |
2472 | invis-prop (overlay-get o 'invisible)) | |
4d90d6d0 | 2473 | (if (invisible-p invis-prop) |
cd59ea72 SM |
2474 | (if (overlay-get o 'isearch-open-invisible) |
2475 | (setq ov-list (cons o ov-list)) | |
2476 | ;; We found one overlay that cannot be | |
2477 | ;; opened, that means the whole chunk | |
2478 | ;; cannot be opened. | |
2479 | (setq can-be-opened nil))) | |
2480 | (setq overlays (cdr overlays))) | |
2481 | (if can-be-opened | |
2482 | ;; It makes sense to append to the open | |
2483 | ;; overlays list only if we know that this is | |
2484 | ;; t. | |
2485 | (setq crt-overlays (append ov-list crt-overlays))))) | |
2486 | (goto-char (next-overlay-change (point))))) | |
2487 | ;; See if invisibility reaches up thru END. | |
2488 | (if (>= (point) end) | |
2489 | (if (and can-be-opened (consp crt-overlays)) | |
2490 | (progn | |
2491 | (setq isearch-opened-overlays | |
2492 | (append isearch-opened-overlays crt-overlays)) | |
2493 | (mapc 'isearch-open-overlay-temporary crt-overlays) | |
2494 | nil) | |
2495 | (setq isearch-hidden t))))))) | |
08200510 | 2496 | |
f2fd3261 JL |
2497 | (defun isearch-filter-visible (beg end) |
2498 | "Test whether the current search hit is visible at least partially. | |
2499 | Return non-nil if the text from BEG to END is visible to Isearch as | |
2500 | determined by `isearch-range-invisible' unless invisible text can be | |
2501 | searched too when `search-invisible' is t." | |
5e189f39 JL |
2502 | (or (eq search-invisible t) |
2503 | (not (isearch-range-invisible beg end)))) | |
2504 | ||
08200510 | 2505 | \f |
191f025a | 2506 | ;; General utilities |
08200510 | 2507 | |
b78559b0 RS |
2508 | (defun isearch-no-upper-case-p (string regexp-flag) |
2509 | "Return t if there are no upper case chars in STRING. | |
b7852303 | 2510 | If REGEXP-FLAG is non-nil, disregard letters preceded by `\\' (but not `\\\\') |
b78559b0 | 2511 | since they have special meaning in a regexp." |
b48ca14f | 2512 | (let (quote-flag (i 0) (len (length string)) found) |
59057198 RS |
2513 | (while (and (not found) (< i len)) |
2514 | (let ((char (aref string i))) | |
2515 | (if (and regexp-flag (eq char ?\\)) | |
2516 | (setq quote-flag (not quote-flag)) | |
2517 | (if (and (not quote-flag) (not (eq char (downcase char)))) | |
f4be3f89 RS |
2518 | (setq found t)) |
2519 | (setq quote-flag nil))) | |
59057198 | 2520 | (setq i (1+ i))) |
c5f847b6 SM |
2521 | (not (or found |
2522 | ;; Even if there's no uppercase char, we want to detect the use | |
2523 | ;; of [:upper:] or [:lower:] char-class, which indicates | |
2524 | ;; clearly that the user cares about case distinction. | |
2525 | (and regexp-flag (string-match "\\[:\\(upp\\|low\\)er:]" string) | |
2526 | (condition-case err | |
2527 | (progn | |
2528 | (string-match (substring string 0 (match-beginning 0)) | |
2529 | "") | |
2530 | nil) | |
2531 | (invalid-regexp | |
2532 | (equal "Unmatched [ or [^" (cadr err))))))))) | |
08200510 | 2533 | |
b78559b0 | 2534 | ;; Portability functions to support various Emacs versions. |
8e1cae6d | 2535 | |
08200510 | 2536 | (defun isearch-text-char-description (c) |
14373677 | 2537 | (cond |
cf5e4199 JL |
2538 | ((< c ?\s) (propertize (format "^%c" (+ c 64)) 'face 'escape-glyph)) |
2539 | ((= c ?\^?) (propertize "^?" 'face 'escape-glyph)) | |
14373677 | 2540 | (t (char-to-string c)))) |
08200510 | 2541 | |
bd1bd125 | 2542 | ;; General function to unread characters or events. |
99ae9e9f | 2543 | ;; Also insert them in a keyboard macro being defined. |
8f90f594 | 2544 | (defun isearch-unread (&rest char-or-events) |
02b2f510 | 2545 | (mapc 'store-kbd-macro-event char-or-events) |
bd1bd125 RS |
2546 | (setq unread-command-events |
2547 | (append char-or-events unread-command-events))) | |
08200510 | 2548 | |
44336afb | 2549 | \f |
bca92193 JL |
2550 | ;; Highlighting |
2551 | ||
2552 | (defvar isearch-overlay nil) | |
2553 | ||
2554 | (defun isearch-highlight (beg end) | |
704d3ae7 JL |
2555 | (if search-highlight |
2556 | (if isearch-overlay | |
2557 | ;; Overlay already exists, just move it. | |
2558 | (move-overlay isearch-overlay beg end (current-buffer)) | |
2559 | ;; Overlay doesn't exist, create it. | |
2560 | (setq isearch-overlay (make-overlay beg end)) | |
2561 | ;; 1001 is higher than lazy's 1000 and ediff's 100+ | |
2562 | (overlay-put isearch-overlay 'priority 1001) | |
4be520fb | 2563 | (overlay-put isearch-overlay 'face isearch-face)))) |
bca92193 JL |
2564 | |
2565 | (defun isearch-dehighlight () | |
2566 | (when isearch-overlay | |
2567 | (delete-overlay isearch-overlay))) | |
2568 | \f | |
191f025a SM |
2569 | ;; isearch-lazy-highlight feature |
2570 | ;; by Bob Glickstein <http://www.zanshin.com/~bobg/> | |
2571 | ||
2572 | ;; When active, *every* match for the current search string is | |
2573 | ;; highlighted: the current one using the normal isearch match color | |
e3cde0c7 | 2574 | ;; and all the others using `isearch-lazy-highlight'. The extra |
191f025a SM |
2575 | ;; highlighting makes it easier to anticipate where the cursor will |
2576 | ;; land each time you press C-s or C-r to repeat a pending search. | |
2577 | ;; Highlighting of these additional matches happens in a deferred | |
2578 | ;; fashion using "idle timers," so the cycles needed do not rob | |
2579 | ;; isearch of its usual snappy response. | |
2580 | ||
2581 | ;; IMPLEMENTATION NOTE: This depends on some isearch internals. | |
2582 | ;; Specifically: | |
2583 | ;; - `isearch-update' is expected to be called (at least) every time | |
2584 | ;; the search string or window-start changes; | |
2585 | ;; - `isearch-string' is expected to contain the current search | |
2586 | ;; string as entered by the user; | |
2587 | ;; - the type of the current search is expected to be given by | |
2588 | ;; `isearch-word' and `isearch-regexp'; | |
2589 | ;; - the direction of the current search is expected to be given by | |
2590 | ;; `isearch-forward'; | |
ba653a53 | 2591 | ;; - the variable `isearch-error' is expected to be true |
4837b516 | 2592 | ;; only if `isearch-string' is an invalid regexp. |
44336afb | 2593 | |
44336afb | 2594 | (defvar isearch-lazy-highlight-overlays nil) |
c982ab21 | 2595 | (defvar isearch-lazy-highlight-wrapped nil) |
f9114cec RS |
2596 | (defvar isearch-lazy-highlight-start-limit nil) |
2597 | (defvar isearch-lazy-highlight-end-limit nil) | |
44336afb GM |
2598 | (defvar isearch-lazy-highlight-start nil) |
2599 | (defvar isearch-lazy-highlight-end nil) | |
2600 | (defvar isearch-lazy-highlight-timer nil) | |
2601 | (defvar isearch-lazy-highlight-last-string nil) | |
c982ab21 GM |
2602 | (defvar isearch-lazy-highlight-window nil) |
2603 | (defvar isearch-lazy-highlight-window-start nil) | |
6b61353c | 2604 | (defvar isearch-lazy-highlight-window-end nil) |
46daf6c7 GM |
2605 | (defvar isearch-lazy-highlight-case-fold-search nil) |
2606 | (defvar isearch-lazy-highlight-regexp nil) | |
9a193944 | 2607 | (defvar isearch-lazy-highlight-space-regexp nil) |
e54a1075 | 2608 | (defvar isearch-lazy-highlight-forward nil) |
957e5dd1 | 2609 | (defvar isearch-lazy-highlight-error nil) |
44336afb | 2610 | |
46fe9018 | 2611 | (defun lazy-highlight-cleanup (&optional force) |
c982ab21 | 2612 | "Stop lazy highlighting and remove extra highlighting from current buffer. |
c1bc6bb6 | 2613 | FORCE non-nil means do it whether or not `lazy-highlight-cleanup' |
c982ab21 | 2614 | is nil. This function is called when exiting an incremental search if |
c1bc6bb6 | 2615 | `lazy-highlight-cleanup' is non-nil." |
44336afb | 2616 | (interactive '(t)) |
c1bc6bb6 | 2617 | (if (or force lazy-highlight-cleanup) |
c982ab21 GM |
2618 | (while isearch-lazy-highlight-overlays |
2619 | (delete-overlay (car isearch-lazy-highlight-overlays)) | |
2620 | (setq isearch-lazy-highlight-overlays | |
2621 | (cdr isearch-lazy-highlight-overlays)))) | |
2622 | (when isearch-lazy-highlight-timer | |
2623 | (cancel-timer isearch-lazy-highlight-timer) | |
2624 | (setq isearch-lazy-highlight-timer nil))) | |
44336afb | 2625 | |
6480c508 JB |
2626 | (define-obsolete-function-alias 'isearch-lazy-highlight-cleanup |
2627 | 'lazy-highlight-cleanup | |
2628 | "22.1") | |
46fe9018 | 2629 | |
d9dd1f33 | 2630 | (defun isearch-lazy-highlight-new-loop (&optional beg end) |
c1bc6bb6 | 2631 | "Cleanup any previous `lazy-highlight' loop and begin a new one. |
f9114cec RS |
2632 | BEG and END specify the bounds within which highlighting should occur. |
2633 | This is called when `isearch-update' is invoked (which can cause the | |
2634 | search string to change or the window to scroll). It is also used | |
2635 | by other Emacs features." | |
da79720c | 2636 | (when (and (null executing-kbd-macro) |
c982ab21 GM |
2637 | (sit-for 0) ;make sure (window-start) is credible |
2638 | (or (not (equal isearch-string | |
2639 | isearch-lazy-highlight-last-string)) | |
2640 | (not (eq (selected-window) | |
2641 | isearch-lazy-highlight-window)) | |
46daf6c7 GM |
2642 | (not (eq isearch-lazy-highlight-case-fold-search |
2643 | isearch-case-fold-search)) | |
2644 | (not (eq isearch-lazy-highlight-regexp | |
2645 | isearch-regexp)) | |
c982ab21 | 2646 | (not (= (window-start) |
6b61353c KH |
2647 | isearch-lazy-highlight-window-start)) |
2648 | (not (= (window-end) ; Window may have been split/joined. | |
e54a1075 JB |
2649 | isearch-lazy-highlight-window-end)) |
2650 | (not (eq isearch-forward | |
957e5dd1 JL |
2651 | isearch-lazy-highlight-forward)) |
2652 | ;; In case we are recovering from an error. | |
2653 | (not (equal isearch-error | |
2654 | isearch-lazy-highlight-error)))) | |
c982ab21 | 2655 | ;; something important did indeed change |
46fe9018 | 2656 | (lazy-highlight-cleanup t) ;kill old loop & remove overlays |
957e5dd1 | 2657 | (setq isearch-lazy-highlight-error isearch-error) |
ba653a53 | 2658 | (when (not isearch-error) |
f9114cec RS |
2659 | (setq isearch-lazy-highlight-start-limit beg |
2660 | isearch-lazy-highlight-end-limit end) | |
c982ab21 GM |
2661 | (setq isearch-lazy-highlight-window (selected-window) |
2662 | isearch-lazy-highlight-window-start (window-start) | |
6b61353c | 2663 | isearch-lazy-highlight-window-end (window-end) |
c982ab21 GM |
2664 | isearch-lazy-highlight-start (point) |
2665 | isearch-lazy-highlight-end (point) | |
2666 | isearch-lazy-highlight-last-string isearch-string | |
46daf6c7 GM |
2667 | isearch-lazy-highlight-case-fold-search isearch-case-fold-search |
2668 | isearch-lazy-highlight-regexp isearch-regexp | |
9a193944 | 2669 | isearch-lazy-highlight-wrapped nil |
e54a1075 JB |
2670 | isearch-lazy-highlight-space-regexp search-whitespace-regexp |
2671 | isearch-lazy-highlight-forward isearch-forward) | |
5f3a57c9 RS |
2672 | (unless (equal isearch-string "") |
2673 | (setq isearch-lazy-highlight-timer | |
c1bc6bb6 | 2674 | (run-with-idle-timer lazy-highlight-initial-delay nil |
5f3a57c9 | 2675 | 'isearch-lazy-highlight-update)))))) |
c982ab21 GM |
2676 | |
2677 | (defun isearch-lazy-highlight-search () | |
2678 | "Search ahead for the next or previous match, for lazy highlighting. | |
4b65254d | 2679 | Attempt to do the search exactly the way the pending Isearch would." |
83659220 JL |
2680 | (condition-case nil |
2681 | (let ((case-fold-search isearch-lazy-highlight-case-fold-search) | |
2682 | (isearch-regexp isearch-lazy-highlight-regexp) | |
2683 | (search-spaces-regexp isearch-lazy-highlight-space-regexp) | |
2684 | (search-invisible nil) ; don't match invisible text | |
2685 | (retry t) | |
2686 | (success nil) | |
e54a1075 JB |
2687 | (isearch-forward isearch-lazy-highlight-forward) |
2688 | (bound (if isearch-lazy-highlight-forward | |
83659220 JL |
2689 | (min (or isearch-lazy-highlight-end-limit (point-max)) |
2690 | (if isearch-lazy-highlight-wrapped | |
2691 | isearch-lazy-highlight-start | |
2692 | (window-end))) | |
2693 | (max (or isearch-lazy-highlight-start-limit (point-min)) | |
ba653a53 | 2694 | (if isearch-lazy-highlight-wrapped |
83659220 JL |
2695 | isearch-lazy-highlight-end |
2696 | (window-start)))))) | |
2f669fac | 2697 | ;; Use a loop like in `isearch-search'. |
83659220 JL |
2698 | (while retry |
2699 | (setq success (isearch-search-string | |
2700 | isearch-lazy-highlight-last-string bound t)) | |
2f669fac JL |
2701 | ;; Clear RETRY unless the search predicate says |
2702 | ;; to skip this search hit. | |
83659220 | 2703 | (if (or (not success) |
27dd3c11 JL |
2704 | (= (point) bound) ; like (bobp) (eobp) in `isearch-search'. |
2705 | (= (match-beginning 0) (match-end 0)) | |
2f669fac | 2706 | (funcall isearch-filter-predicate |
83659220 JL |
2707 | (match-beginning 0) (match-end 0))) |
2708 | (setq retry nil))) | |
2709 | success) | |
2710 | (error nil))) | |
44336afb GM |
2711 | |
2712 | (defun isearch-lazy-highlight-update () | |
c982ab21 | 2713 | "Update highlighting of other matches for current search." |
c1bc6bb6 | 2714 | (let ((max lazy-highlight-max-at-a-time) |
c982ab21 GM |
2715 | (looping t) |
2716 | nomore) | |
6ee8e621 JL |
2717 | (with-local-quit |
2718 | (save-selected-window | |
2719 | (if (and (window-live-p isearch-lazy-highlight-window) | |
2720 | (not (eq (selected-window) isearch-lazy-highlight-window))) | |
2721 | (select-window isearch-lazy-highlight-window)) | |
2722 | (save-excursion | |
2723 | (save-match-data | |
e54a1075 | 2724 | (goto-char (if isearch-lazy-highlight-forward |
6ee8e621 JL |
2725 | isearch-lazy-highlight-end |
2726 | isearch-lazy-highlight-start)) | |
2727 | (while looping | |
2728 | (let ((found (isearch-lazy-highlight-search))) | |
2729 | (when max | |
2730 | (setq max (1- max)) | |
2731 | (if (<= max 0) | |
2732 | (setq looping nil))) | |
2733 | (if found | |
2734 | (let ((mb (match-beginning 0)) | |
2735 | (me (match-end 0))) | |
2736 | (if (= mb me) ;zero-length match | |
e54a1075 | 2737 | (if isearch-lazy-highlight-forward |
6ee8e621 JL |
2738 | (if (= mb (if isearch-lazy-highlight-wrapped |
2739 | isearch-lazy-highlight-start | |
2740 | (window-end))) | |
2741 | (setq found nil) | |
2742 | (forward-char 1)) | |
2743 | (if (= mb (if isearch-lazy-highlight-wrapped | |
2744 | isearch-lazy-highlight-end | |
2745 | (window-start))) | |
2746 | (setq found nil) | |
2747 | (forward-char -1))) | |
2748 | ||
2749 | ;; non-zero-length match | |
2750 | (let ((ov (make-overlay mb me))) | |
2751 | (push ov isearch-lazy-highlight-overlays) | |
704d3ae7 JL |
2752 | ;; 1000 is higher than ediff's 100+, |
2753 | ;; but lower than isearch main overlay's 1001 | |
2754 | (overlay-put ov 'priority 1000) | |
46fe9018 | 2755 | (overlay-put ov 'face lazy-highlight-face) |
6ee8e621 | 2756 | (overlay-put ov 'window (selected-window)))) |
e54a1075 | 2757 | (if isearch-lazy-highlight-forward |
6ee8e621 JL |
2758 | (setq isearch-lazy-highlight-end (point)) |
2759 | (setq isearch-lazy-highlight-start (point))))) | |
2760 | ||
2761 | ;; not found or zero-length match at the search bound | |
2762 | (if (not found) | |
2763 | (if isearch-lazy-highlight-wrapped | |
2764 | (setq looping nil | |
2765 | nomore t) | |
2766 | (setq isearch-lazy-highlight-wrapped t) | |
e54a1075 | 2767 | (if isearch-lazy-highlight-forward |
6ee8e621 JL |
2768 | (progn |
2769 | (setq isearch-lazy-highlight-end (window-start)) | |
f9114cec RS |
2770 | (goto-char (max (or isearch-lazy-highlight-start-limit (point-min)) |
2771 | (window-start)))) | |
6ee8e621 | 2772 | (setq isearch-lazy-highlight-start (window-end)) |
f9114cec RS |
2773 | (goto-char (min (or isearch-lazy-highlight-end-limit (point-max)) |
2774 | (window-end)))))))) | |
6ee8e621 JL |
2775 | (unless nomore |
2776 | (setq isearch-lazy-highlight-timer | |
2c987fc2 | 2777 | (run-at-time lazy-highlight-interval nil |
6ee8e621 | 2778 | 'isearch-lazy-highlight-update))))))))) |
44336afb | 2779 | |
72a69d7f | 2780 | (defun isearch-resume (string regexp word forward message case-fold) |
c40a4de1 | 2781 | "Resume an incremental search. |
72a69d7f | 2782 | STRING is the string or regexp searched for. |
c40a4de1 GM |
2783 | REGEXP non-nil means the resumed search was a regexp search. |
2784 | WORD non-nil means resume a word search. | |
2785 | FORWARD non-nil means resume a forward search. | |
2786 | MESSAGE is the echo-area message recorded for the search resumed. | |
2787 | CASE-FOLD non-nil means the search was case-insensitive." | |
2788 | (isearch-mode forward regexp nil nil word) | |
72a69d7f | 2789 | (setq isearch-string string |
c40a4de1 GM |
2790 | isearch-message message |
2791 | isearch-case-fold-search case-fold) | |
72a69d7f JL |
2792 | (isearch-search) |
2793 | (isearch-update)) | |
191f025a | 2794 | |
3b1e4dd1 | 2795 | ;;; isearch.el ends here |