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55535639 | 1 | ;;; isearch.el --- incremental search minor mode |
3b1e4dd1 | 2 | |
c4f6e489 | 3 | ;; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, |
114f9c96 | 4 | ;; 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
8989a920 | 5 | ;; Free Software Foundation, Inc. |
3a801d0c | 6 | |
3b1e4dd1 | 7 | ;; Author: Daniel LaLiberte <liberte@cs.uiuc.edu> |
0f09b616 | 8 | ;; Maintainer: FSF |
117132a6 | 9 | ;; Keywords: matching |
8e1cae6d | 10 | |
54d2ecd3 | 11 | ;; This file is part of GNU Emacs. |
8e1cae6d | 12 | |
eb3fa2cf | 13 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
59243403 | 14 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
15 | ;; the Free Software Foundation, either version 3 of the License, or |
16 | ;; (at your option) any later version. | |
59243403 | 17 | |
8e1cae6d | 18 | ;; GNU Emacs is distributed in the hope that it will be useful, |
59243403 RS |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 24 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
8e1cae6d | 25 | |
3b1e4dd1 ER |
26 | ;;; Commentary: |
27 | ||
8e1cae6d JB |
28 | ;; Instructions |
29 | ||
08200510 RS |
30 | ;; For programmed use of isearch-mode, e.g. calling (isearch-forward), |
31 | ;; isearch-mode behaves modally and does not return until the search | |
117132a6 | 32 | ;; is completed. It uses a recursive-edit to behave this way. |
08200510 | 33 | |
8e1cae6d | 34 | ;; The key bindings active within isearch-mode are defined below in |
08200510 RS |
35 | ;; `isearch-mode-map' which is given bindings close to the default |
36 | ;; characters of the original isearch.el. With `isearch-mode', | |
37 | ;; however, you can bind multi-character keys and it should be easier | |
38 | ;; to add new commands. One bug though: keys with meta-prefix cannot | |
39 | ;; be longer than two chars. Also see minibuffer-local-isearch-map | |
40 | ;; for bindings active during `isearch-edit-string'. | |
41 | ||
117132a6 DL |
42 | ;; isearch-mode should work even if you switch windows with the mouse, |
43 | ;; in which case isearch-mode is terminated automatically before the | |
44 | ;; switch. | |
08200510 RS |
45 | |
46 | ;; The search ring and completion commands automatically put you in | |
47 | ;; the minibuffer to edit the string. This gives you a chance to | |
48 | ;; modify the search string before executing the search. There are | |
49 | ;; three commands to terminate the editing: C-s and C-r exit the | |
50 | ;; minibuffer and search forward and reverse respectively, while C-m | |
51 | ;; exits and does a nonincremental search. | |
52 | ||
53 | ;; Exiting immediately from isearch uses isearch-edit-string instead | |
54 | ;; of nonincremental-search, if search-nonincremental-instead is non-nil. | |
55 | ;; The name of this option should probably be changed if we decide to | |
56 | ;; keep the behavior. No point in forcing nonincremental search until | |
57 | ;; the last possible moment. | |
58 | ||
3b1e4dd1 | 59 | ;;; Code: |
08200510 RS |
60 | |
61 | \f | |
191f025a | 62 | ;; Some additional options and constants. |
08200510 | 63 | |
9c1db929 RS |
64 | (defgroup isearch nil |
65 | "Incremental search minor mode." | |
117132a6 DL |
66 | :link '(emacs-commentary-link "isearch") |
67 | :link '(custom-manual "(emacs)Incremental Search") | |
9c1db929 RS |
68 | :prefix "isearch-" |
69 | :prefix "search-" | |
70 | :group 'matching) | |
fdf5afa4 | 71 | |
9c1db929 RS |
72 | |
73 | (defcustom search-exit-option t | |
4b65254d | 74 | "Non-nil means random control characters terminate incremental search." |
9c1db929 RS |
75 | :type 'boolean |
76 | :group 'isearch) | |
77 | ||
78 | (defcustom search-slow-window-lines 1 | |
4b65254d | 79 | "Number of lines in slow search display windows. |
fdf5afa4 RS |
80 | These are the short windows used during incremental search on slow terminals. |
81 | Negative means put the slow search window at the top (normally it's at bottom) | |
9c1db929 RS |
82 | and the value is minus the number of lines." |
83 | :type 'integer | |
84 | :group 'isearch) | |
fdf5afa4 | 85 | |
9c1db929 | 86 | (defcustom search-slow-speed 1200 |
4b65254d | 87 | "Highest terminal speed at which to use \"slow\" style incremental search. |
fdf5afa4 | 88 | This is the style where a one-line window is created to show the line |
9c1db929 RS |
89 | that the search has reached." |
90 | :type 'integer | |
91 | :group 'isearch) | |
8e1cae6d | 92 | |
9c1db929 | 93 | (defcustom search-upper-case 'not-yanks |
4b65254d | 94 | "If non-nil, upper case chars disable case fold searching. |
08200510 RS |
95 | That is, upper and lower case chars must match exactly. |
96 | This applies no matter where the chars come from, but does not | |
fdf5afa4 | 97 | apply to chars in regexps that are prefixed with `\\'. |
6e3057bb JL |
98 | If this value is `not-yanks', text yanked into the search string |
99 | in Isearch mode is always downcased." | |
9c1db929 RS |
100 | :type '(choice (const :tag "off" nil) |
101 | (const not-yanks) | |
5786b3ed | 102 | (other :tag "on" t)) |
9c1db929 | 103 | :group 'isearch) |
8e1cae6d | 104 | |
9c1db929 | 105 | (defcustom search-nonincremental-instead t |
4b65254d | 106 | "If non-nil, do a nonincremental search instead if exiting immediately. |
08200510 | 107 | Actually, `isearch-edit-string' is called to let you enter the search |
9c1db929 RS |
108 | string, and RET terminates editing and does a nonincremental search." |
109 | :type 'boolean | |
110 | :group 'isearch) | |
8e1cae6d | 111 | |
1e8780b1 | 112 | (defcustom search-whitespace-regexp (purecopy "\\s-+") |
4b65254d | 113 | "If non-nil, regular expression to match a sequence of whitespace chars. |
e2b992cb | 114 | This applies to regular expression incremental search. |
ab67e8b6 RS |
115 | When you put a space or spaces in the incremental regexp, it stands for |
116 | this, unless it is inside of a regexp construct such as [...] or *, + or ?. | |
117 | You might want to use something like \"[ \\t\\r\\n]+\" instead. | |
118 | In the Customization buffer, that is `[' followed by a space, | |
51a77cba RS |
119 | a tab, a carriage return (control-M), a newline, and `]+'. |
120 | ||
121 | When this is nil, each space you type matches literally, against one space." | |
122 | :type '(choice (const :tag "Find Spaces Literally" nil) | |
123 | regexp) | |
9c1db929 | 124 | :group 'isearch) |
8e1cae6d | 125 | |
0352b205 RS |
126 | (defcustom search-invisible 'open |
127 | "If t incremental search can match hidden text. | |
6480c508 JB |
128 | A nil value means don't match invisible text. |
129 | When the value is `open', if the text matched is made invisible by | |
0352b205 RS |
130 | an overlay having an `invisible' property and that overlay has a property |
131 | `isearch-open-invisible', then incremental search will show the contents. | |
cd59ea72 SM |
132 | \(This applies when using `outline.el' and `hideshow.el'.) |
133 | See also `reveal-mode' if you want overlays to automatically be opened | |
134 | whenever point is in one of them." | |
0352b205 RS |
135 | :type '(choice (const :tag "Match hidden text" t) |
136 | (const :tag "Open overlays" open) | |
79c7a4fa | 137 | (const :tag "Don't match hidden text" nil)) |
0352b205 RS |
138 | :group 'isearch) |
139 | ||
140 | (defcustom isearch-hide-immediately t | |
68c18d6d RS |
141 | "If non-nil, re-hide an invisible match right away. |
142 | This variable makes a difference when `search-invisible' is set to `open'. | |
143 | It means that after search makes some invisible text visible | |
144 | to show the match, it makes the text invisible again when the match moves. | |
b48ca14f JB |
145 | Ordinarily the text becomes invisible again at the end of the search." |
146 | :type 'boolean | |
0352b205 | 147 | :group 'isearch) |
86bfaffe | 148 | |
00098b01 | 149 | (defcustom isearch-resume-in-command-history nil |
4b65254d JB |
150 | "If non-nil, `isearch-resume' commands are added to the command history. |
151 | This allows you to resume earlier Isearch sessions through the | |
00098b01 | 152 | command history." |
6848c9f1 KS |
153 | :type 'boolean |
154 | :group 'isearch) | |
155 | ||
08200510 RS |
156 | (defvar isearch-mode-hook nil |
157 | "Function(s) to call after starting up an incremental search.") | |
158 | ||
a6020335 MH |
159 | (defvar isearch-update-post-hook nil |
160 | "Function(s) to call after isearch has found matches in the buffer.") | |
161 | ||
08200510 | 162 | (defvar isearch-mode-end-hook nil |
87e97673 RS |
163 | "Function(s) to call after terminating an incremental search. |
164 | When these functions are called, `isearch-mode-end-hook-quit' | |
4974aba8 | 165 | is non-nil if the user quits the search.") |
87e97673 RS |
166 | |
167 | (defvar isearch-mode-end-hook-quit nil | |
4974aba8 | 168 | "Non-nil while running `isearch-mode-end-hook' if the user quits the search.") |
08200510 | 169 | |
ac475d3a JL |
170 | (defvar isearch-message-function nil |
171 | "Function to call to display the search prompt. | |
172 | If nil, use `isearch-message'.") | |
173 | ||
6a18e4e7 JL |
174 | (defvar isearch-wrap-function nil |
175 | "Function to call to wrap the search when search is failed. | |
176 | If nil, move point to the beginning of the buffer for a forward search, | |
177 | or to the end of the buffer for a backward search.") | |
178 | ||
179 | (defvar isearch-push-state-function nil | |
4b65254d | 180 | "Function to save a function restoring the mode-specific Isearch state |
6a18e4e7 JL |
181 | to the search status stack.") |
182 | ||
f2fd3261 | 183 | (defvar isearch-filter-predicate 'isearch-filter-visible |
2f669fac JL |
184 | "Predicate that filters the search hits that would normally be available. |
185 | Search hits that dissatisfy the predicate are skipped. The function | |
186 | has two arguments: the positions of start and end of text matched by | |
187 | the search. If this function returns nil, continue searching without | |
188 | stopping at this match.") | |
5e189f39 | 189 | |
191f025a | 190 | ;; Search ring. |
8e1cae6d JB |
191 | |
192 | (defvar search-ring nil | |
193 | "List of search string sequences.") | |
08200510 | 194 | (defvar regexp-search-ring nil |
8e1cae6d JB |
195 | "List of regular expression search string sequences.") |
196 | ||
9c1db929 | 197 | (defcustom search-ring-max 16 |
4b65254d | 198 | "Maximum length of search ring before oldest elements are thrown away." |
9c1db929 RS |
199 | :type 'integer |
200 | :group 'isearch) | |
201 | (defcustom regexp-search-ring-max 16 | |
4b65254d | 202 | "Maximum length of regexp search ring before oldest elements are thrown away." |
9c1db929 RS |
203 | :type 'integer |
204 | :group 'isearch) | |
8e1cae6d JB |
205 | |
206 | (defvar search-ring-yank-pointer nil | |
a5dcf63f | 207 | "Index in `search-ring' of last string reused. |
6480c508 | 208 | It is nil if none yet.") |
08200510 | 209 | (defvar regexp-search-ring-yank-pointer nil |
a5dcf63f | 210 | "Index in `regexp-search-ring' of last string reused. |
6480c508 | 211 | It is nil if none yet.") |
8e1cae6d | 212 | |
9c1db929 | 213 | (defcustom search-ring-update nil |
4b65254d | 214 | "Non-nil if advancing or retreating in the search ring should cause search. |
9c1db929 RS |
215 | Default value, nil, means edit the string instead." |
216 | :type 'boolean | |
217 | :group 'isearch) | |
08200510 | 218 | |
bca92193 JL |
219 | ;;; isearch highlight customization. |
220 | ||
221 | (defcustom search-highlight t | |
4b65254d | 222 | "Non-nil means incremental search highlights the current match." |
bca92193 JL |
223 | :type 'boolean |
224 | :group 'isearch) | |
225 | ||
226 | (defface isearch | |
227 | '((((class color) (min-colors 88) (background light)) | |
228 | ;; The background must not be too dark, for that means | |
229 | ;; the character is hard to see when the cursor is there. | |
a49ff341 | 230 | (:background "magenta3" :foreground "lightskyblue1")) |
bca92193 JL |
231 | (((class color) (min-colors 88) (background dark)) |
232 | (:background "palevioletred2" :foreground "brown4")) | |
233 | (((class color) (min-colors 16)) | |
234 | (:background "magenta4" :foreground "cyan1")) | |
235 | (((class color) (min-colors 8)) | |
236 | (:background "magenta4" :foreground "cyan1")) | |
237 | (t (:inverse-video t))) | |
238 | "Face for highlighting Isearch matches." | |
92cc4a30 JL |
239 | :group 'isearch |
240 | :group 'basic-faces) | |
bca92193 JL |
241 | (defvar isearch 'isearch) |
242 | ||
d8891294 JL |
243 | (defface isearch-fail |
244 | '((((class color) (min-colors 88) (background light)) | |
245 | (:background "RosyBrown1")) | |
246 | (((class color) (min-colors 88) (background dark)) | |
247 | (:background "red4")) | |
248 | (((class color) (min-colors 16)) | |
249 | (:background "red")) | |
250 | (((class color) (min-colors 8)) | |
251 | (:background "red")) | |
252 | (((class color grayscale)) | |
253 | :foreground "grey") | |
254 | (t (:inverse-video t))) | |
723e5b84 | 255 | "Face for highlighting failed part in Isearch echo-area message." |
d8891294 | 256 | :version "23.1" |
723e5b84 BG |
257 | :group 'isearch) |
258 | ||
bca92193 | 259 | (defcustom isearch-lazy-highlight t |
4b65254d | 260 | "Controls the lazy-highlighting during incremental search. |
bca92193 JL |
261 | When non-nil, all text in the buffer matching the current search |
262 | string is highlighted lazily (see `lazy-highlight-initial-delay' | |
263 | and `lazy-highlight-interval')." | |
264 | :type 'boolean | |
265 | :group 'lazy-highlight | |
266 | :group 'isearch) | |
267 | ||
c1bc6bb6 | 268 | ;;; Lazy highlight customization. |
bca92193 | 269 | |
c1bc6bb6 RS |
270 | (defgroup lazy-highlight nil |
271 | "Lazy highlighting feature for matching strings." | |
272 | :prefix "lazy-highlight-" | |
273 | :version "21.1" | |
274 | :group 'isearch | |
bca92193 | 275 | :group 'matching) |
c1bc6bb6 RS |
276 | |
277 | (defcustom lazy-highlight-cleanup t | |
4b65254d | 278 | "Controls whether to remove extra highlighting after a search. |
c1bc6bb6 | 279 | If this is nil, extra highlighting can be \"manually\" removed with |
46fe9018 | 280 | \\[lazy-highlight-cleanup]." |
c1bc6bb6 RS |
281 | :type 'boolean |
282 | :group 'lazy-highlight) | |
6480c508 JB |
283 | (define-obsolete-variable-alias 'isearch-lazy-highlight-cleanup |
284 | 'lazy-highlight-cleanup | |
285 | "22.1") | |
c1bc6bb6 RS |
286 | |
287 | (defcustom lazy-highlight-initial-delay 0.25 | |
4b65254d | 288 | "Seconds to wait before beginning to lazily highlight all matches." |
c1bc6bb6 RS |
289 | :type 'number |
290 | :group 'lazy-highlight) | |
6480c508 JB |
291 | (define-obsolete-variable-alias 'isearch-lazy-highlight-initial-delay |
292 | 'lazy-highlight-initial-delay | |
293 | "22.1") | |
c1bc6bb6 RS |
294 | |
295 | (defcustom lazy-highlight-interval 0 ; 0.0625 | |
4b65254d | 296 | "Seconds between lazily highlighting successive matches." |
c1bc6bb6 RS |
297 | :type 'number |
298 | :group 'lazy-highlight) | |
6480c508 JB |
299 | (define-obsolete-variable-alias 'isearch-lazy-highlight-interval |
300 | 'lazy-highlight-interval | |
301 | "22.1") | |
c1bc6bb6 RS |
302 | |
303 | (defcustom lazy-highlight-max-at-a-time 20 | |
4b65254d JB |
304 | "Maximum matches to highlight at a time (for `lazy-highlight'). |
305 | Larger values may reduce Isearch's responsiveness to user input; | |
c1bc6bb6 RS |
306 | smaller values make matches highlight slowly. |
307 | A value of nil means highlight all matches." | |
308 | :type '(choice (const :tag "All" nil) | |
309 | (integer :tag "Some")) | |
310 | :group 'lazy-highlight) | |
6480c508 JB |
311 | (define-obsolete-variable-alias 'isearch-lazy-highlight-max-at-a-time |
312 | 'lazy-highlight-max-at-a-time | |
313 | "22.1") | |
c1bc6bb6 | 314 | |
e3cde0c7 | 315 | (defface lazy-highlight |
c1bc6bb6 RS |
316 | '((((class color) (min-colors 88) (background light)) |
317 | (:background "paleturquoise")) | |
318 | (((class color) (min-colors 88) (background dark)) | |
319 | (:background "paleturquoise4")) | |
320 | (((class color) (min-colors 16)) | |
321 | (:background "turquoise3")) | |
322 | (((class color) (min-colors 8)) | |
323 | (:background "turquoise3")) | |
324 | (t (:underline t))) | |
325 | "Face for lazy highlighting of matches other than the current one." | |
92cc4a30 JL |
326 | :group 'lazy-highlight |
327 | :group 'basic-faces) | |
c4f6e489 | 328 | (define-obsolete-face-alias 'isearch-lazy-highlight-face 'lazy-highlight "22.1") |
bca92193 | 329 | (defvar lazy-highlight-face 'lazy-highlight) |
6480c508 JB |
330 | (define-obsolete-variable-alias 'isearch-lazy-highlight-face |
331 | 'lazy-highlight-face | |
332 | "22.1") | |
c1bc6bb6 | 333 | \f |
b92368b4 JL |
334 | ;; Define isearch help map. |
335 | ||
336 | (defvar isearch-help-map | |
4b65254d | 337 | (let ((map (make-sparse-keymap))) |
b92368b4 JL |
338 | (define-key map [t] 'isearch-other-control-char) |
339 | (define-key map (char-to-string help-char) 'isearch-help-for-help) | |
340 | (define-key map [help] 'isearch-help-for-help) | |
341 | (define-key map [f1] 'isearch-help-for-help) | |
342 | (define-key map "?" 'isearch-help-for-help) | |
343 | (define-key map "b" 'isearch-describe-bindings) | |
344 | (define-key map "k" 'isearch-describe-key) | |
345 | (define-key map "m" 'isearch-describe-mode) | |
346 | (define-key map "q" 'help-quit) | |
347 | map) | |
4b65254d | 348 | "Keymap for characters following the Help key for Isearch mode.") |
b92368b4 JL |
349 | |
350 | (eval-when-compile (require 'help-macro)) | |
351 | ||
352 | (make-help-screen isearch-help-for-help-internal | |
ce9a0ccb | 353 | (purecopy "Type a help option: [bkm] or ?") |
b92368b4 JL |
354 | "You have typed %THIS-KEY%, the help character. Type a Help option: |
355 | \(Type \\<help-map>\\[help-quit] to exit the Help command.) | |
356 | ||
4b65254d JB |
357 | b Display all Isearch key bindings. |
358 | k KEYS Display full documentation of Isearch key sequence. | |
359 | m Display documentation of Isearch mode. | |
b92368b4 JL |
360 | |
361 | You can't type here other help keys available in the global help map, | |
4b65254d JB |
362 | but outside of this help window when you type them in Isearch mode, |
363 | they exit Isearch mode before displaying global help." | |
b92368b4 JL |
364 | isearch-help-map) |
365 | ||
366 | (defun isearch-help-for-help () | |
4b65254d | 367 | "Display Isearch help menu." |
b92368b4 JL |
368 | (interactive) |
369 | (let (same-window-buffer-names same-window-regexps) | |
370 | (isearch-help-for-help-internal)) | |
371 | (isearch-update)) | |
372 | ||
373 | (defun isearch-describe-bindings () | |
4b65254d JB |
374 | "Show a list of all keys defined in Isearch mode, and their definitions. |
375 | This is like `describe-bindings', but displays only Isearch keys." | |
b92368b4 JL |
376 | (interactive) |
377 | (let (same-window-buffer-names same-window-regexps) | |
378 | (with-help-window "*Help*" | |
379 | (with-current-buffer standard-output | |
380 | (princ "Isearch Mode Bindings:\n") | |
381 | (princ (substitute-command-keys "\\{isearch-mode-map}")))))) | |
382 | ||
383 | (defun isearch-describe-key () | |
384 | "Display documentation of the function invoked by isearch key." | |
385 | (interactive) | |
386 | (let (same-window-buffer-names same-window-regexps) | |
387 | (call-interactively 'describe-key)) | |
388 | (isearch-update)) | |
389 | ||
390 | (defun isearch-describe-mode () | |
4b65254d | 391 | "Display documentation of Isearch mode." |
b92368b4 JL |
392 | (interactive) |
393 | (let (same-window-buffer-names same-window-regexps) | |
394 | (describe-function 'isearch-forward)) | |
395 | (isearch-update)) | |
396 | ||
397 | (defalias 'isearch-mode-help 'isearch-describe-mode) | |
398 | ||
399 | \f | |
191f025a | 400 | ;; Define isearch-mode keymap. |
8e1cae6d | 401 | |
02b2f510 | 402 | (defvar isearch-mode-map |
4b65254d JB |
403 | (let ((i 0) |
404 | (map (make-keymap))) | |
8f924df7 | 405 | (or (char-table-p (nth 1 map)) |
02b2f510 SM |
406 | (error "The initialization of isearch-mode-map must be updated")) |
407 | ;; Make all multibyte characters search for themselves. | |
6b61353c | 408 | (set-char-table-range (nth 1 map) (cons #x100 (max-char)) |
5760cdc1 | 409 | 'isearch-printing-char) |
6b61353c KH |
410 | ;; Make function keys, etc, which aren't bound to a scrolling-function |
411 | ;; exit the search. | |
02b2f510 SM |
412 | (define-key map [t] 'isearch-other-control-char) |
413 | ;; Control chars, by default, end isearch mode transparently. | |
b48ca14f | 414 | ;; We need these explicit definitions because, in a dense keymap, |
02b2f510 SM |
415 | ;; the binding for t does not affect characters. |
416 | ;; We use a dense keymap to save space. | |
6480c508 | 417 | (while (< i ?\s) |
02b2f510 SM |
418 | (define-key map (make-string 1 i) 'isearch-other-control-char) |
419 | (setq i (1+ i))) | |
420 | ||
421 | ;; Single-byte printing chars extend the search string by default. | |
6480c508 | 422 | (setq i ?\s) |
02b2f510 SM |
423 | (while (< i 256) |
424 | (define-key map (vector i) 'isearch-printing-char) | |
425 | (setq i (1+ i))) | |
426 | ||
427 | ;; To handle local bindings with meta char prefix keys, define | |
428 | ;; another full keymap. This must be done for any other prefix | |
429 | ;; keys as well, one full keymap per char of the prefix key. It | |
430 | ;; would be simpler to disable the global keymap, and/or have a | |
431 | ;; default local key binding for any key not otherwise bound. | |
432 | (let ((meta-map (make-sparse-keymap))) | |
433 | (define-key map (char-to-string meta-prefix-char) meta-map) | |
434 | (define-key map [escape] meta-map)) | |
435 | (define-key map (vector meta-prefix-char t) 'isearch-other-meta-char) | |
436 | ||
437 | ;; Several non-printing chars change the searching behavior. | |
438 | (define-key map "\C-s" 'isearch-repeat-forward) | |
439 | (define-key map "\C-r" 'isearch-repeat-backward) | |
440 | ;; Define M-C-s and M-C-r like C-s and C-r so that the same key | |
441 | ;; combinations can be used to repeat regexp isearches that can | |
442 | ;; be used to start these searches. | |
443 | (define-key map "\M-\C-s" 'isearch-repeat-forward) | |
444 | (define-key map "\M-\C-r" 'isearch-repeat-backward) | |
445 | (define-key map "\177" 'isearch-delete-char) | |
446 | (define-key map "\C-g" 'isearch-abort) | |
1f4139d5 | 447 | |
02b2f510 SM |
448 | ;; This assumes \e is the meta-prefix-char. |
449 | (or (= ?\e meta-prefix-char) | |
450 | (error "Inconsistency in isearch.el")) | |
451 | (define-key map "\e\e\e" 'isearch-cancel) | |
452 | (define-key map [escape escape escape] 'isearch-cancel) | |
b48ca14f | 453 | |
02b2f510 | 454 | (define-key map "\C-q" 'isearch-quote-char) |
08200510 | 455 | |
02b2f510 SM |
456 | (define-key map "\r" 'isearch-exit) |
457 | (define-key map "\C-j" 'isearch-printing-char) | |
458 | (define-key map "\t" 'isearch-printing-char) | |
ec06d344 | 459 | (define-key map [?\S-\ ] 'isearch-printing-char) |
b48ca14f | 460 | |
74820eb5 JL |
461 | (define-key map "\C-w" 'isearch-yank-word-or-char) |
462 | (define-key map "\M-\C-w" 'isearch-del-char) | |
463 | (define-key map "\M-\C-y" 'isearch-yank-char) | |
464 | (define-key map "\C-y" 'isearch-yank-line) | |
08200510 | 465 | |
50de6a38 JL |
466 | (define-key map (char-to-string help-char) isearch-help-map) |
467 | (define-key map [help] isearch-help-map) | |
468 | (define-key map [f1] isearch-help-map) | |
08200510 | 469 | |
02b2f510 SM |
470 | (define-key map "\M-n" 'isearch-ring-advance) |
471 | (define-key map "\M-p" 'isearch-ring-retreat) | |
472 | (define-key map "\M-y" 'isearch-yank-kill) | |
473 | ||
474 | (define-key map "\M-\t" 'isearch-complete) | |
475 | ||
476 | ;; Pass frame events transparently so they won't exit the search. | |
477 | ;; In particular, if we have more than one display open, then a | |
478 | ;; switch-frame might be generated by someone typing at another keyboard. | |
479 | (define-key map [switch-frame] nil) | |
480 | (define-key map [delete-frame] nil) | |
481 | (define-key map [iconify-frame] nil) | |
482 | (define-key map [make-frame-visible] nil) | |
3f482bc0 | 483 | (define-key map [mouse-movement] nil) |
76197e28 JR |
484 | (define-key map [language-change] nil) |
485 | ||
02b2f510 SM |
486 | ;; For searching multilingual text. |
487 | (define-key map "\C-\\" 'isearch-toggle-input-method) | |
488 | (define-key map "\C-^" 'isearch-toggle-specified-input-method) | |
489 | ||
490 | ;; People expect to be able to paste with the mouse. | |
e4af1426 | 491 | (define-key map [mouse-2] #'isearch-mouse-2) |
02b2f510 SM |
492 | (define-key map [down-mouse-2] nil) |
493 | ||
494 | ;; Some bindings you may want to put in your isearch-mode-hook. | |
495 | ;; Suggest some alternates... | |
496 | (define-key map "\M-c" 'isearch-toggle-case-fold) | |
497 | (define-key map "\M-r" 'isearch-toggle-regexp) | |
498 | (define-key map "\M-e" 'isearch-edit-string) | |
499 | ||
70bc5268 JL |
500 | (define-key map "\M-sr" 'isearch-toggle-regexp) |
501 | (define-key map "\M-sw" 'isearch-toggle-word) | |
502 | ||
81e898ea SM |
503 | (define-key map [?\M-%] 'isearch-query-replace) |
504 | (define-key map [?\C-\M-%] 'isearch-query-replace-regexp) | |
6e3057bb | 505 | (define-key map "\M-so" 'isearch-occur) |
11c9f489 | 506 | (define-key map "\M-shr" 'isearch-highlight-regexp) |
74820eb5 | 507 | |
02b2f510 SM |
508 | map) |
509 | "Keymap for `isearch-mode'.") | |
510 | ||
511 | (defvar minibuffer-local-isearch-map | |
512 | (let ((map (make-sparse-keymap))) | |
513 | (set-keymap-parent map minibuffer-local-map) | |
74820eb5 | 514 | (define-key map "\r" 'isearch-nonincremental-exit-minibuffer) |
02b2f510 | 515 | (define-key map "\M-\t" 'isearch-complete-edit) |
74820eb5 JL |
516 | (define-key map "\C-s" 'isearch-forward-exit-minibuffer) |
517 | (define-key map "\C-r" 'isearch-reverse-exit-minibuffer) | |
518 | (define-key map "\C-f" 'isearch-yank-char-in-minibuffer) | |
519 | (define-key map [right] 'isearch-yank-char-in-minibuffer) | |
02b2f510 | 520 | map) |
4b65254d | 521 | "Keymap for editing Isearch strings in the minibuffer.") |
8e1cae6d | 522 | |
8e1cae6d | 523 | ;; Internal variables declared globally for byte-compiler. |
08200510 RS |
524 | ;; These are all set with setq while isearching |
525 | ;; and bound locally while editing the search string. | |
526 | ||
527 | (defvar isearch-forward nil) ; Searching in the forward direction. | |
528 | (defvar isearch-regexp nil) ; Searching for a regexp. | |
529 | (defvar isearch-word nil) ; Searching for words. | |
cd59ea72 | 530 | (defvar isearch-hidden nil) ; Non-nil if the string exists but is invisible. |
08200510 | 531 | |
191f025a SM |
532 | (defvar isearch-cmds nil |
533 | "Stack of search status sets. | |
08e3de69 EZ |
534 | Each set is a vector of the form: |
535 | [STRING MESSAGE POINT SUCCESS FORWARD OTHER-END WORD | |
536 | INVALID-REGEXP WRAPPED BARRIER WITHIN-BRACKETS CASE-FOLD-SEARCH]") | |
191f025a | 537 | |
08200510 RS |
538 | (defvar isearch-string "") ; The current search string. |
539 | (defvar isearch-message "") ; text-char-description version of isearch-string | |
540 | ||
ee9b85a8 JL |
541 | (defvar isearch-message-prefix-add nil) ; Additonal text for the message prefix |
542 | (defvar isearch-message-suffix-add nil) ; Additonal text for the message suffix | |
543 | ||
ba653a53 JL |
544 | (defvar isearch-success t) ; Searching is currently successful. |
545 | (defvar isearch-error nil) ; Error message for failed search. | |
08200510 RS |
546 | (defvar isearch-other-end nil) ; Start (end) of match if forward (backward). |
547 | (defvar isearch-wrapped nil) ; Searching restarted from the top (bottom). | |
8e1cae6d | 548 | (defvar isearch-barrier 0) |
99ae9e9f | 549 | (defvar isearch-just-started nil) |
ddbe3d5f | 550 | (defvar isearch-start-hscroll 0) ; hscroll when starting the search. |
8e1cae6d | 551 | |
00c42405 SM |
552 | ;; case-fold-search while searching. |
553 | ;; either nil, t, or 'yes. 'yes means the same as t except that mixed | |
554 | ;; case in the search string is ignored. | |
4453091d | 555 | (defvar isearch-case-fold-search nil) |
8e1cae6d | 556 | |
67085aba GM |
557 | (defvar isearch-last-case-fold-search nil) |
558 | ||
ae1a21c6 MB |
559 | ;; Used to save default value while isearch is active |
560 | (defvar isearch-original-minibuffer-message-timeout nil) | |
561 | ||
8e1cae6d JB |
562 | (defvar isearch-adjusted nil) |
563 | (defvar isearch-slow-terminal-mode nil) | |
191f025a | 564 | ;; If t, using a small window. |
08200510 | 565 | (defvar isearch-small-window nil) |
8e1cae6d | 566 | (defvar isearch-opoint 0) |
191f025a | 567 | ;; The window configuration active at the beginning of the search. |
08200510 | 568 | (defvar isearch-window-configuration nil) |
8e1cae6d | 569 | |
08200510 RS |
570 | ;; Flag to indicate a yank occurred, so don't move the cursor. |
571 | (defvar isearch-yank-flag nil) | |
8e1cae6d | 572 | |
191f025a SM |
573 | ;; A function to be called after each input character is processed. |
574 | ;; (It is not called after characters that exit the search.) | |
575 | ;; It is only set from an optional argument to `isearch-mode'. | |
08200510 | 576 | (defvar isearch-op-fun nil) |
8e1cae6d | 577 | |
191f025a | 578 | ;; Is isearch-mode in a recursive edit for modal searching. |
08200510 | 579 | (defvar isearch-recursive-edit nil) |
8e1cae6d | 580 | |
191f025a | 581 | ;; Should isearch be terminated after doing one search? |
08200510 RS |
582 | (defvar isearch-nonincremental nil) |
583 | ||
584 | ;; New value of isearch-forward after isearch-edit-string. | |
585 | (defvar isearch-new-forward nil) | |
8e1cae6d | 586 | |
0352b205 RS |
587 | ;; Accumulate here the overlays opened during searching. |
588 | (defvar isearch-opened-overlays nil) | |
8e1cae6d | 589 | |
99848db0 KH |
590 | ;; The value of input-method-function when isearch is invoked. |
591 | (defvar isearch-input-method-function nil) | |
592 | ||
593 | ;; A flag to tell if input-method-function is locally bound when | |
594 | ;; isearch is invoked. | |
595 | (defvar isearch-input-method-local-p nil) | |
596 | ||
8e1cae6d JB |
597 | ;; Minor-mode-alist changes - kind of redundant with the |
598 | ;; echo area, but if isearching in multiple windows, it can be useful. | |
599 | ||
600 | (or (assq 'isearch-mode minor-mode-alist) | |
601 | (nconc minor-mode-alist | |
602 | (list '(isearch-mode isearch-mode)))) | |
603 | ||
08200510 | 604 | (defvar isearch-mode nil) ;; Name of the minor mode, if non-nil. |
8e1cae6d JB |
605 | (make-variable-buffer-local 'isearch-mode) |
606 | ||
fdf5afa4 RS |
607 | (define-key global-map "\C-s" 'isearch-forward) |
608 | (define-key esc-map "\C-s" 'isearch-forward-regexp) | |
609 | (define-key global-map "\C-r" 'isearch-backward) | |
610 | (define-key esc-map "\C-r" 'isearch-backward-regexp) | |
70bc5268 | 611 | (define-key search-map "w" 'isearch-forward-word) |
fdf5afa4 | 612 | |
191f025a | 613 | ;; Entry points to isearch-mode. |
8e1cae6d | 614 | |
eceee2c0 | 615 | (defun isearch-forward (&optional regexp-p no-recursive-edit) |
8e1cae6d JB |
616 | "\ |
617 | Do incremental search forward. | |
08200510 RS |
618 | With a prefix argument, do an incremental regular expression search instead. |
619 | \\<isearch-mode-map> | |
8e1cae6d | 620 | As you type characters, they add to the search string and are found. |
b48ca14f | 621 | The following non-printing keys are bound in `isearch-mode-map'. |
8e1cae6d | 622 | |
35904fd3 | 623 | Type \\[isearch-delete-char] to cancel last input item from end of search string. |
8e1cae6d | 624 | Type \\[isearch-exit] to exit, leaving point at location found. |
08200510 RS |
625 | Type LFD (C-j) to match end of line. |
626 | Type \\[isearch-repeat-forward] to search again forward,\ | |
627 | \\[isearch-repeat-backward] to search again backward. | |
0ae85960 RS |
628 | Type \\[isearch-yank-word-or-char] to yank next word or character in buffer |
629 | onto the end of the search string, and search for it. | |
74820eb5 JL |
630 | Type \\[isearch-del-char] to delete character from end of search string. |
631 | Type \\[isearch-yank-char] to yank char from buffer onto end of search\ | |
08200510 RS |
632 | string and search for it. |
633 | Type \\[isearch-yank-line] to yank rest of line onto end of search string\ | |
634 | and search for it. | |
75a07f2c | 635 | Type \\[isearch-yank-kill] to yank the last string of killed text. |
8e1cae6d | 636 | Type \\[isearch-quote-char] to quote control character to search for it. |
08200510 RS |
637 | \\[isearch-abort] while searching or when search has failed cancels input\ |
638 | back to what has | |
639 | been found successfully. | |
640 | \\[isearch-abort] when search is successful aborts and moves point to\ | |
641 | starting point. | |
8e1cae6d | 642 | |
b3612973 RS |
643 | If you try to exit with the search string still empty, it invokes |
644 | nonincremental search. | |
645 | ||
6c551d4e EZ |
646 | Type \\[isearch-toggle-case-fold] to toggle search case-sensitivity. |
647 | Type \\[isearch-toggle-regexp] to toggle regular-expression mode. | |
70bc5268 | 648 | Type \\[isearch-toggle-word] to toggle word mode. |
6c551d4e EZ |
649 | Type \\[isearch-edit-string] to edit the search string in the minibuffer. |
650 | ||
8e1cae6d JB |
651 | Also supported is a search ring of the previous 16 search strings. |
652 | Type \\[isearch-ring-advance] to search for the next item in the search ring. | |
08200510 RS |
653 | Type \\[isearch-ring-retreat] to search for the previous item in the search\ |
654 | ring. | |
655 | Type \\[isearch-complete] to complete the search string using the search ring. | |
8e1cae6d | 656 | |
70bc5268 JL |
657 | Type \\[isearch-query-replace] to run `query-replace' with string to\ |
658 | replace from last search string. | |
659 | Type \\[isearch-query-replace-regexp] to run `query-replace-regexp'\ | |
660 | with the last search string. | |
661 | Type \\[isearch-occur] to run `occur' that shows\ | |
662 | the last search string. | |
663 | Type \\[isearch-highlight-regexp] to run `highlight-regexp'\ | |
664 | that highlights the last search string. | |
665 | ||
4b65254d JB |
666 | Type \\[isearch-describe-bindings] to display all Isearch key bindings. |
667 | Type \\[isearch-describe-key] to display documentation of Isearch key. | |
668 | Type \\[isearch-describe-mode] to display documentation of Isearch mode. | |
b92368b4 | 669 | |
1e14b095 | 670 | If an input method is turned on in the current buffer, that input |
4b65254d JB |
671 | method is also active while you are typing characters to search. |
672 | To toggle the input method, type \\[isearch-toggle-input-method]. \ | |
673 | It also toggles the input | |
674 | method in the current buffer. | |
37b20c9b | 675 | |
4b65254d JB |
676 | To use a different input method for searching, type \ |
677 | \\[isearch-toggle-specified-input-method], | |
678 | and specify an input method you want to use. | |
37b20c9b | 679 | |
b48ca14f | 680 | The above keys, bound in `isearch-mode-map', are often controlled by |
35904fd3 | 681 | options; do \\[apropos] on search-.* to find them. |
8e1cae6d | 682 | Other control and meta characters terminate the search |
08200510 | 683 | and are then executed normally (depending on `search-exit-option'). |
fd49e05c | 684 | Likewise for function keys and mouse button events. |
8e1cae6d | 685 | |
08200510 RS |
686 | If this function is called non-interactively, it does not return to |
687 | the calling function until the search is done." | |
8e1cae6d | 688 | |
eceee2c0 | 689 | (interactive "P\np") |
4ae7d00a | 690 | (isearch-mode t (not (null regexp-p)) nil (not no-recursive-edit))) |
8e1cae6d | 691 | |
eceee2c0 | 692 | (defun isearch-forward-regexp (&optional not-regexp no-recursive-edit) |
8e1cae6d JB |
693 | "\ |
694 | Do incremental search forward for regular expression. | |
08200510 | 695 | With a prefix argument, do a regular string search instead. |
8938c0bc JL |
696 | Like ordinary incremental search except that your input is treated |
697 | as a regexp. See the command `isearch-forward' for more information. | |
ab67e8b6 RS |
698 | |
699 | In regexp incremental searches, a space or spaces normally matches | |
700 | any whitespace (the variable `search-whitespace-regexp' controls | |
701 | precisely what that means). If you want to search for a literal space | |
1b1fb2ef | 702 | and nothing else, enter C-q SPC." |
eceee2c0 | 703 | (interactive "P\np") |
4ae7d00a | 704 | (isearch-mode t (null not-regexp) nil (not no-recursive-edit))) |
8e1cae6d | 705 | |
70bc5268 JL |
706 | (defun isearch-forward-word (&optional not-word no-recursive-edit) |
707 | "\ | |
708 | Do incremental search forward for a sequence of words. | |
709 | With a prefix argument, do a regular string search instead. | |
8938c0bc JL |
710 | Like ordinary incremental search except that your input is treated |
711 | as a sequence of words without regard to how the words are separated. | |
712 | See the command `isearch-forward' for more information." | |
70bc5268 JL |
713 | (interactive "P\np") |
714 | (isearch-mode t nil nil (not no-recursive-edit) (null not-word))) | |
715 | ||
eceee2c0 | 716 | (defun isearch-backward (&optional regexp-p no-recursive-edit) |
8e1cae6d JB |
717 | "\ |
718 | Do incremental search backward. | |
08200510 | 719 | With a prefix argument, do a regular expression search instead. |
8938c0bc | 720 | See the command `isearch-forward' for more information." |
eceee2c0 | 721 | (interactive "P\np") |
4ae7d00a | 722 | (isearch-mode nil (not (null regexp-p)) nil (not no-recursive-edit))) |
8e1cae6d | 723 | |
eceee2c0 | 724 | (defun isearch-backward-regexp (&optional not-regexp no-recursive-edit) |
8e1cae6d JB |
725 | "\ |
726 | Do incremental search backward for regular expression. | |
08200510 | 727 | With a prefix argument, do a regular string search instead. |
8938c0bc JL |
728 | Like ordinary incremental search except that your input is treated |
729 | as a regexp. See the command `isearch-forward' for more information." | |
eceee2c0 | 730 | (interactive "P\np") |
4ae7d00a | 731 | (isearch-mode nil (null not-regexp) nil (not no-recursive-edit))) |
08200510 | 732 | |
8e1cae6d | 733 | \f |
8e1cae6d JB |
734 | ;; isearch-mode only sets up incremental search for the minor mode. |
735 | ;; All the work is done by the isearch-mode commands. | |
736 | ||
08200510 | 737 | ;; Not used yet: |
d7fa5aa2 | 738 | ;;(defvar isearch-commands '(isearch-forward isearch-backward |
08200510 RS |
739 | ;; isearch-forward-regexp isearch-backward-regexp) |
740 | ;; "List of commands for which isearch-mode does not recursive-edit.") | |
b48ca14f | 741 | |
08200510 RS |
742 | |
743 | (defun isearch-mode (forward &optional regexp op-fun recursive-edit word-p) | |
4b65254d | 744 | "Start Isearch minor mode. |
b92368b4 | 745 | It is called by the function `isearch-forward' and other related functions." |
8e1cae6d JB |
746 | |
747 | ;; Initialize global vars. | |
748 | (setq isearch-forward forward | |
749 | isearch-regexp regexp | |
08200510 | 750 | isearch-word word-p |
8e1cae6d | 751 | isearch-op-fun op-fun |
67085aba | 752 | isearch-last-case-fold-search isearch-case-fold-search |
8e1cae6d JB |
753 | isearch-case-fold-search case-fold-search |
754 | isearch-string "" | |
755 | isearch-message "" | |
756 | isearch-cmds nil | |
757 | isearch-success t | |
758 | isearch-wrapped nil | |
759 | isearch-barrier (point) | |
760 | isearch-adjusted nil | |
761 | isearch-yank-flag nil | |
ba653a53 | 762 | isearch-error nil |
0cabad13 | 763 | isearch-slow-terminal-mode (and (<= baud-rate search-slow-speed) |
8e1cae6d | 764 | (> (window-height) |
fad241d3 RS |
765 | (* 4 |
766 | (abs search-slow-window-lines)))) | |
8e1cae6d JB |
767 | isearch-other-end nil |
768 | isearch-small-window nil | |
99ae9e9f | 769 | isearch-just-started t |
ddbe3d5f | 770 | isearch-start-hscroll (window-hscroll) |
8e1cae6d | 771 | |
8e1cae6d | 772 | isearch-opoint (point) |
a5dcf63f | 773 | search-ring-yank-pointer nil |
0352b205 | 774 | isearch-opened-overlays nil |
99848db0 KH |
775 | isearch-input-method-function input-method-function |
776 | isearch-input-method-local-p (local-variable-p 'input-method-function) | |
ae1a21c6 MB |
777 | regexp-search-ring-yank-pointer nil |
778 | ||
779 | ;; Save the original value of `minibuffer-message-timeout', and | |
780 | ;; set it to nil so that isearch's messages don't get timed out. | |
781 | isearch-original-minibuffer-message-timeout minibuffer-message-timeout | |
782 | minibuffer-message-timeout nil) | |
99848db0 KH |
783 | |
784 | ;; We must bypass input method while reading key. When a user type | |
785 | ;; printable character, appropriate input method is turned on in | |
380866a2 | 786 | ;; minibuffer to read multibyte characters. |
99848db0 KH |
787 | (or isearch-input-method-local-p |
788 | (make-local-variable 'input-method-function)) | |
789 | (setq input-method-function nil) | |
790 | ||
99ae9e9f | 791 | (looking-at "") |
292a8dff RS |
792 | (setq isearch-window-configuration |
793 | (if isearch-slow-terminal-mode (current-window-configuration) nil)) | |
70418205 | 794 | |
18ce7555 RS |
795 | ;; Maybe make minibuffer frame visible and/or raise it. |
796 | (let ((frame (window-frame (minibuffer-window)))) | |
360e0dd5 RS |
797 | (unless (memq (frame-live-p frame) '(nil t)) |
798 | (unless (frame-visible-p frame) | |
799 | (make-frame-visible frame)) | |
800 | (if minibuffer-auto-raise | |
801 | (raise-frame frame)))) | |
18ce7555 | 802 | |
8e1cae6d | 803 | (setq isearch-mode " Isearch") ;; forward? regexp? |
1cd3732c | 804 | (force-mode-line-update) |
8e1cae6d | 805 | |
c7955222 | 806 | (setq overriding-terminal-local-map isearch-mode-map) |
8e1cae6d | 807 | (run-hooks 'isearch-mode-hook) |
40637410 JL |
808 | |
809 | ;; Pushing the initial state used to be before running isearch-mode-hook, | |
810 | ;; but a hook might set `isearch-push-state-function' used in | |
811 | ;; `isearch-push-state' to save mode-specific initial state. (Bug#4994) | |
812 | (isearch-push-state) | |
813 | ||
5ce25ae7 | 814 | (isearch-update) |
08200510 | 815 | |
bfe2d334 | 816 | (add-hook 'mouse-leave-buffer-hook 'isearch-done) |
7e56ea04 | 817 | (add-hook 'kbd-macro-termination-hook 'isearch-done) |
6e5cd0ae | 818 | |
b48ca14f JB |
819 | ;; isearch-mode can be made modal (in the sense of not returning to |
820 | ;; the calling function until searching is completed) by entering | |
08200510 | 821 | ;; a recursive-edit and exiting it when done isearching. |
130bf67c RS |
822 | (if recursive-edit |
823 | (let ((isearch-recursive-edit t)) | |
824 | (recursive-edit))) | |
0daa17f3 | 825 | isearch-success) |
8e1cae6d JB |
826 | |
827 | ||
8e1cae6d JB |
828 | ;; Some high level utilities. Others below. |
829 | ||
830 | (defun isearch-update () | |
191f025a | 831 | ;; Called after each command to update the display. |
4c01d4bd RS |
832 | (if (and (null unread-command-events) |
833 | (null executing-kbd-macro)) | |
8e1cae6d | 834 | (progn |
c982ab21 | 835 | (if (not (input-pending-p)) |
ac475d3a JL |
836 | (if isearch-message-function |
837 | (funcall isearch-message-function) | |
838 | (isearch-message))) | |
c982ab21 | 839 | (if (and isearch-slow-terminal-mode |
b48ca14f | 840 | (not (or isearch-small-window |
c982ab21 GM |
841 | (pos-visible-in-window-p)))) |
842 | (let ((found-point (point))) | |
843 | (setq isearch-small-window t) | |
844 | (move-to-window-line 0) | |
845 | (let ((window-min-height 1)) | |
846 | (split-window nil (if (< search-slow-window-lines 0) | |
847 | (1+ (- search-slow-window-lines)) | |
848 | (- (window-height) | |
849 | (1+ search-slow-window-lines))))) | |
850 | (if (< search-slow-window-lines 0) | |
851 | (progn (vertical-motion (- 1 search-slow-window-lines)) | |
852 | (set-window-start (next-window) (point)) | |
853 | (set-window-hscroll (next-window) | |
854 | (window-hscroll)) | |
855 | (set-window-hscroll (selected-window) 0)) | |
856 | (other-window 1)) | |
ddbe3d5f RS |
857 | (goto-char found-point)) |
858 | ;; Keep same hscrolling as at the start of the search when possible | |
859 | (let ((current-scroll (window-hscroll))) | |
860 | (set-window-hscroll (selected-window) isearch-start-hscroll) | |
861 | (unless (pos-visible-in-window-p) | |
862 | (set-window-hscroll (selected-window) current-scroll)))) | |
863 | (if isearch-other-end | |
c982ab21 GM |
864 | (if (< isearch-other-end (point)) ; isearch-forward? |
865 | (isearch-highlight isearch-other-end (point)) | |
866 | (isearch-highlight (point) isearch-other-end)) | |
4dbbcb46 | 867 | (isearch-dehighlight)) |
c982ab21 | 868 | )) |
8e1cae6d JB |
869 | (setq ;; quit-flag nil not for isearch-mode |
870 | isearch-adjusted nil | |
871 | isearch-yank-flag nil) | |
f9114cec | 872 | (when isearch-lazy-highlight |
d9dd1f33 | 873 | (isearch-lazy-highlight-new-loop)) |
a5cc922e KH |
874 | ;; We must prevent the point moving to the end of composition when a |
875 | ;; part of the composition has just been searched. | |
a6020335 MH |
876 | (setq disable-point-adjustment t) |
877 | (run-hooks 'isearch-update-post-hook)) | |
8e1cae6d | 878 | |
0daa17f3 | 879 | (defun isearch-done (&optional nopush edit) |
87e97673 RS |
880 | "Exit Isearch mode. |
881 | For successful search, pass no args. | |
882 | For a failing search, NOPUSH is t. | |
883 | For going to the minibuffer to edit the search string, | |
884 | NOPUSH is t and EDIT is t." | |
885 | ||
00098b01 | 886 | (if isearch-resume-in-command-history |
6848c9f1 KS |
887 | (let ((command `(isearch-resume ,isearch-string ,isearch-regexp |
888 | ,isearch-word ,isearch-forward | |
889 | ,isearch-message | |
890 | ',isearch-case-fold-search))) | |
891 | (unless (equal (car command-history) command) | |
892 | (setq command-history (cons command command-history))))) | |
c40a4de1 | 893 | |
bfe2d334 | 894 | (remove-hook 'mouse-leave-buffer-hook 'isearch-done) |
7e56ea04 | 895 | (remove-hook 'kbd-macro-termination-hook 'isearch-done) |
d196f58d GM |
896 | (setq isearch-lazy-highlight-start nil) |
897 | ||
8e1cae6d | 898 | ;; Called by all commands that terminate isearch-mode. |
35a4d143 | 899 | ;; If NOPUSH is non-nil, we don't push the string on the search ring. |
c7955222 | 900 | (setq overriding-terminal-local-map nil) |
08200510 | 901 | ;; (setq pre-command-hook isearch-old-pre-command-hook) ; for lemacs |
ae1a21c6 | 902 | (setq minibuffer-message-timeout isearch-original-minibuffer-message-timeout) |
4dbbcb46 | 903 | (isearch-dehighlight) |
46fe9018 | 904 | (lazy-highlight-cleanup lazy-highlight-cleanup) |
08200510 RS |
905 | (let ((found-start (window-start (selected-window))) |
906 | (found-point (point))) | |
d8a4fc44 RS |
907 | (when isearch-window-configuration |
908 | (set-window-configuration isearch-window-configuration) | |
909 | (if isearch-small-window | |
910 | (goto-char found-point) | |
911 | ;; set-window-configuration clobbers window-start; restore it. | |
912 | ;; This has an annoying side effect of clearing the last_modiff | |
913 | ;; field of the window, which can cause unwanted scrolling, | |
914 | ;; so don't do it unless truly necessary. | |
915 | (set-window-start (selected-window) found-start t)))) | |
08200510 RS |
916 | |
917 | (setq isearch-mode nil) | |
99848db0 KH |
918 | (if isearch-input-method-local-p |
919 | (setq input-method-function isearch-input-method-function) | |
920 | (kill-local-variable 'input-method-function)) | |
921 | ||
1cd3732c | 922 | (force-mode-line-update) |
8e1cae6d | 923 | |
df01192b RS |
924 | ;; If we ended in the middle of some intangible text, |
925 | ;; move to the further end of that intangible text. | |
926 | (let ((after (if (eobp) nil | |
927 | (get-text-property (point) 'intangible))) | |
928 | (before (if (bobp) nil | |
929 | (get-text-property (1- (point)) 'intangible)))) | |
930 | (when (and before after (eq before after)) | |
931 | (if isearch-forward | |
932 | (goto-char (next-single-property-change (point) 'intangible)) | |
933 | (goto-char (previous-single-property-change (point) 'intangible))))) | |
934 | ||
35a4d143 | 935 | (if (and (> (length isearch-string) 0) (not nopush)) |
8e1cae6d | 936 | ;; Update the ring data. |
73d2bf95 | 937 | (isearch-update-ring isearch-string isearch-regexp)) |
8e1cae6d | 938 | |
87e97673 RS |
939 | (let ((isearch-mode-end-hook-quit (and nopush (not edit)))) |
940 | (run-hooks 'isearch-mode-end-hook)) | |
071fdd66 JL |
941 | |
942 | ;; If there was movement, mark the starting position. | |
4837b516 | 943 | ;; Maybe should test difference between and set mark only if > threshold. |
071fdd66 JL |
944 | (if (/= (point) isearch-opoint) |
945 | (or (and transient-mark-mode mark-active) | |
946 | (progn | |
947 | (push-mark isearch-opoint t) | |
948 | (or executing-kbd-macro (> (minibuffer-depth) 0) | |
949 | (message "Mark saved where search started"))))) | |
950 | ||
0daa17f3 | 951 | (and (not edit) isearch-recursive-edit (exit-recursive-edit))) |
08200510 | 952 | |
73d2bf95 RS |
953 | (defun isearch-update-ring (string &optional regexp) |
954 | "Add STRING to the beginning of the search ring. | |
a2b7dcc7 | 955 | REGEXP if non-nil says use the regexp search ring." |
77e5aef9 KS |
956 | (add-to-history |
957 | (if regexp 'regexp-search-ring 'search-ring) | |
958 | string | |
959 | (if regexp regexp-search-ring-max search-ring-max))) | |
73d2bf95 | 960 | |
191f025a SM |
961 | ;; Switching buffers should first terminate isearch-mode. |
962 | ;; ;; For Emacs 19, the frame switch event is handled. | |
963 | ;; (defun isearch-switch-frame-handler () | |
964 | ;; (interactive) ;; Is this necessary? | |
965 | ;; ;; First terminate isearch-mode. | |
966 | ;; (isearch-done) | |
967 | ;; (isearch-clean-overlays) | |
8989a920 | 968 | ;; (handle-switch-frame (car (cdr last-command-event)))) |
08200510 | 969 | |
8e1cae6d | 970 | \f |
08e3de69 EZ |
971 | ;; The search status structure and stack. |
972 | ||
1a699acf | 973 | (defsubst isearch-string-state (frame) |
08e3de69 | 974 | "Return the search string in FRAME." |
3eec7894 | 975 | (aref frame 0)) |
1a699acf | 976 | (defsubst isearch-message-state (frame) |
08e3de69 | 977 | "Return the search string to display to the user in FRAME." |
3eec7894 | 978 | (aref frame 1)) |
1a699acf | 979 | (defsubst isearch-point-state (frame) |
08e3de69 | 980 | "Return the point in FRAME." |
3eec7894 | 981 | (aref frame 2)) |
1a699acf | 982 | (defsubst isearch-success-state (frame) |
08e3de69 | 983 | "Return the success flag in FRAME." |
3eec7894 | 984 | (aref frame 3)) |
1a699acf | 985 | (defsubst isearch-forward-state (frame) |
08e3de69 | 986 | "Return the searching-forward flag in FRAME." |
3eec7894 | 987 | (aref frame 4)) |
1a699acf | 988 | (defsubst isearch-other-end-state (frame) |
08e3de69 | 989 | "Return the other end of the match in FRAME." |
3eec7894 | 990 | (aref frame 5)) |
1a699acf | 991 | (defsubst isearch-word-state (frame) |
08e3de69 | 992 | "Return the search-by-word flag in FRAME." |
3eec7894 | 993 | (aref frame 6)) |
ba653a53 | 994 | (defsubst isearch-error-state (frame) |
08e3de69 | 995 | "Return the regexp error message in FRAME, or nil if its regexp is valid." |
3eec7894 | 996 | (aref frame 7)) |
1a699acf | 997 | (defsubst isearch-wrapped-state (frame) |
08e3de69 | 998 | "Return the search-wrapped flag in FRAME." |
3eec7894 | 999 | (aref frame 8)) |
1a699acf | 1000 | (defsubst isearch-barrier-state (frame) |
08e3de69 | 1001 | "Return the barrier value in FRAME." |
3eec7894 | 1002 | (aref frame 9)) |
1a699acf | 1003 | (defsubst isearch-case-fold-search-state (frame) |
08e3de69 | 1004 | "Return the case-folding flag in FRAME." |
ba653a53 | 1005 | (aref frame 10)) |
6a18e4e7 | 1006 | (defsubst isearch-pop-fun-state (frame) |
4b65254d | 1007 | "Return the function restoring the mode-specific Isearch state in FRAME." |
ba653a53 | 1008 | (aref frame 11)) |
08e3de69 EZ |
1009 | |
1010 | (defun isearch-top-state () | |
1011 | (let ((cmd (car isearch-cmds))) | |
1a699acf JL |
1012 | (setq isearch-string (isearch-string-state cmd) |
1013 | isearch-message (isearch-message-state cmd) | |
1014 | isearch-success (isearch-success-state cmd) | |
1015 | isearch-forward (isearch-forward-state cmd) | |
1016 | isearch-other-end (isearch-other-end-state cmd) | |
1017 | isearch-word (isearch-word-state cmd) | |
ba653a53 | 1018 | isearch-error (isearch-error-state cmd) |
1a699acf JL |
1019 | isearch-wrapped (isearch-wrapped-state cmd) |
1020 | isearch-barrier (isearch-barrier-state cmd) | |
1a699acf | 1021 | isearch-case-fold-search (isearch-case-fold-search-state cmd)) |
6a18e4e7 JL |
1022 | (if (functionp (isearch-pop-fun-state cmd)) |
1023 | (funcall (isearch-pop-fun-state cmd) cmd)) | |
1a699acf | 1024 | (goto-char (isearch-point-state cmd)))) |
08e3de69 EZ |
1025 | |
1026 | (defun isearch-pop-state () | |
1027 | (setq isearch-cmds (cdr isearch-cmds)) | |
1028 | (isearch-top-state)) | |
1029 | ||
1030 | (defun isearch-push-state () | |
1031 | (setq isearch-cmds | |
1032 | (cons (vector isearch-string isearch-message (point) | |
1033 | isearch-success isearch-forward isearch-other-end | |
1034 | isearch-word | |
ba653a53 JL |
1035 | isearch-error isearch-wrapped isearch-barrier |
1036 | isearch-case-fold-search | |
6a18e4e7 JL |
1037 | (if isearch-push-state-function |
1038 | (funcall isearch-push-state-function))) | |
08e3de69 EZ |
1039 | isearch-cmds))) |
1040 | ||
1041 | \f | |
8e1cae6d JB |
1042 | ;; Commands active while inside of the isearch minor mode. |
1043 | ||
1044 | (defun isearch-exit () | |
1045 | "Exit search normally. | |
1046 | However, if this is the first command after starting incremental | |
1047 | search and `search-nonincremental-instead' is non-nil, do a | |
08200510 | 1048 | nonincremental search instead via `isearch-edit-string'." |
8e1cae6d | 1049 | (interactive) |
b48ca14f | 1050 | (if (and search-nonincremental-instead |
8e1cae6d | 1051 | (= 0 (length isearch-string))) |
08200510 RS |
1052 | (let ((isearch-nonincremental t)) |
1053 | (isearch-edit-string))) | |
0352b205 RS |
1054 | (isearch-done) |
1055 | (isearch-clean-overlays)) | |
8e1cae6d JB |
1056 | |
1057 | ||
1058 | (defun isearch-edit-string () | |
08200510 RS |
1059 | "Edit the search string in the minibuffer. |
1060 | The following additional command keys are active while editing. | |
1061 | \\<minibuffer-local-isearch-map> | |
1062 | \\[exit-minibuffer] to resume incremental searching with the edited string. | |
1063 | \\[isearch-nonincremental-exit-minibuffer] to do one nonincremental search. | |
1064 | \\[isearch-forward-exit-minibuffer] to resume isearching forward. | |
8eb40e74 | 1065 | \\[isearch-reverse-exit-minibuffer] to resume isearching backward. |
08200510 | 1066 | \\[isearch-complete-edit] to complete the search string using the search ring. |
8eb40e74 | 1067 | \\<isearch-mode-map> |
74820eb5 | 1068 | If first char entered is \\[isearch-yank-word-or-char], then do word search instead." |
08200510 RS |
1069 | |
1070 | ;; This code is very hairy for several reasons, explained in the code. | |
1071 | ;; Mainly, isearch-mode must be terminated while editing and then restarted. | |
1072 | ;; If there were a way to catch any change of buffer from the minibuffer, | |
1073 | ;; this could be simplified greatly. | |
eb8c3be9 | 1074 | ;; Editing doesn't back up the search point. Should it? |
8e1cae6d | 1075 | (interactive) |
08200510 | 1076 | (condition-case err |
e900ced4 RS |
1077 | (progn |
1078 | (let ((isearch-nonincremental isearch-nonincremental) | |
1079 | ||
1080 | ;; Locally bind all isearch global variables to protect them | |
1081 | ;; from recursive isearching. | |
1082 | ;; isearch-string -message and -forward are not bound | |
1083 | ;; so they may be changed. Instead, save the values. | |
1084 | (isearch-new-string isearch-string) | |
1085 | (isearch-new-message isearch-message) | |
1086 | (isearch-new-forward isearch-forward) | |
1087 | (isearch-new-word isearch-word) | |
1088 | ||
1089 | (isearch-regexp isearch-regexp) | |
1090 | (isearch-op-fun isearch-op-fun) | |
1091 | (isearch-cmds isearch-cmds) | |
1092 | (isearch-success isearch-success) | |
1093 | (isearch-wrapped isearch-wrapped) | |
1094 | (isearch-barrier isearch-barrier) | |
1095 | (isearch-adjusted isearch-adjusted) | |
1096 | (isearch-yank-flag isearch-yank-flag) | |
ba653a53 | 1097 | (isearch-error isearch-error) |
e900ced4 RS |
1098 | ;;; Don't bind this. We want isearch-search, below, to set it. |
1099 | ;;; And the old value won't matter after that. | |
1100 | ;;; (isearch-other-end isearch-other-end) | |
1101 | ;;; Perhaps some of these other variables should be bound for a | |
1102 | ;;; shorter period, ending before the next isearch-search. | |
1103 | ;;; But there doesn't seem to be a real bug, so let's not risk it now. | |
1104 | (isearch-opoint isearch-opoint) | |
1105 | (isearch-slow-terminal-mode isearch-slow-terminal-mode) | |
1106 | (isearch-small-window isearch-small-window) | |
1107 | (isearch-recursive-edit isearch-recursive-edit) | |
1108 | ;; Save current configuration so we can restore it here. | |
1109 | (isearch-window-configuration (current-window-configuration)) | |
ae1a21c6 MB |
1110 | |
1111 | ;; Temporarily restore `minibuffer-message-timeout'. | |
1112 | (minibuffer-message-timeout | |
1113 | isearch-original-minibuffer-message-timeout) | |
1114 | (isearch-original-minibuffer-message-timeout | |
1115 | isearch-original-minibuffer-message-timeout) | |
02b99a17 | 1116 | old-point old-other-end) |
e900ced4 RS |
1117 | |
1118 | ;; Actually terminate isearching until editing is done. | |
b48ca14f | 1119 | ;; This is so that the user can do anything without failure, |
e900ced4 RS |
1120 | ;; like switch buffers and start another isearch, and return. |
1121 | (condition-case err | |
1122 | (isearch-done t t) | |
1123 | (exit nil)) ; was recursive editing | |
1124 | ||
02b99a17 JL |
1125 | ;; Save old point and isearch-other-end before reading from minibuffer |
1126 | ;; that can change their values. | |
1127 | (setq old-point (point) old-other-end isearch-other-end) | |
1128 | ||
e900ced4 | 1129 | (unwind-protect |
c16e87ee | 1130 | (let* ((message-log-max nil) |
e900ced4 RS |
1131 | ;; Binding minibuffer-history-symbol to nil is a work-around |
1132 | ;; for some incompatibility with gmhist. | |
c16e87ee | 1133 | (minibuffer-history-symbol)) |
e900ced4 | 1134 | (setq isearch-new-string |
e5feeb31 SM |
1135 | (read-from-minibuffer |
1136 | (isearch-message-prefix nil nil isearch-nonincremental) | |
1137 | isearch-string | |
1138 | minibuffer-local-isearch-map nil | |
363de02e JL |
1139 | (if isearch-regexp |
1140 | (cons 'regexp-search-ring | |
1141 | (1+ (or regexp-search-ring-yank-pointer -1))) | |
1142 | (cons 'search-ring | |
1143 | (1+ (or search-ring-yank-pointer -1)))) | |
e5feeb31 | 1144 | nil t) |
e900ced4 RS |
1145 | isearch-new-message |
1146 | (mapconcat 'isearch-text-char-description | |
1147 | isearch-new-string ""))) | |
02b99a17 JL |
1148 | |
1149 | ;; Set point at the start (end) of old match if forward (backward), | |
1150 | ;; so after exiting minibuffer isearch resumes at the start (end) | |
1151 | ;; of this match and can find it again. | |
1152 | (if (and old-other-end (eq old-point (point)) | |
1153 | (eq isearch-forward isearch-new-forward)) | |
1154 | (goto-char old-other-end)) | |
1155 | ||
e900ced4 | 1156 | ;; Always resume isearching by restarting it. |
b48ca14f JB |
1157 | (isearch-mode isearch-forward |
1158 | isearch-regexp | |
1159 | isearch-op-fun | |
e900ced4 RS |
1160 | nil |
1161 | isearch-word) | |
1162 | ||
1163 | ;; Copy new local values to isearch globals | |
1164 | (setq isearch-string isearch-new-string | |
1165 | isearch-message isearch-new-message | |
1166 | isearch-forward isearch-new-forward | |
1167 | isearch-word isearch-new-word)) | |
1168 | ||
1169 | ;; Empty isearch-string means use default. | |
1170 | (if (= 0 (length isearch-string)) | |
1171 | (setq isearch-string (or (car (if isearch-regexp | |
1172 | regexp-search-ring | |
1173 | search-ring)) | |
8cc3c821 RS |
1174 | "") |
1175 | ||
1176 | isearch-message | |
1177 | (mapconcat 'isearch-text-char-description | |
1178 | isearch-string "")) | |
e900ced4 RS |
1179 | ;; This used to set the last search string, |
1180 | ;; but I think it is not right to do that here. | |
1181 | ;; Only the string actually used should be saved. | |
1182 | )) | |
1183 | ||
a71a98cf JL |
1184 | ;; This used to push the state as of before this C-s, but it adds |
1185 | ;; an inconsistent state where part of variables are from the | |
1186 | ;; previous search (e.g. `isearch-success'), and part of variables | |
1187 | ;; are just entered from the minibuffer (e.g. `isearch-string'). | |
1188 | ;; (isearch-push-state) | |
08200510 RS |
1189 | |
1190 | ;; Reinvoke the pending search. | |
08200510 | 1191 | (isearch-search) |
a71a98cf | 1192 | (isearch-push-state) ; this pushes the correct state |
08200510 | 1193 | (isearch-update) |
b48ca14f | 1194 | (if isearch-nonincremental |
08200510 RS |
1195 | (progn |
1196 | ;; (sit-for 1) ;; needed if isearch-done does: (message "") | |
40c7f256 RS |
1197 | (isearch-done) |
1198 | ;; The search done message is confusing when the string | |
1199 | ;; is empty, so erase it. | |
1200 | (if (equal isearch-string "") | |
1201 | (message ""))))) | |
8e1cae6d | 1202 | |
08200510 RS |
1203 | (quit ; handle abort-recursive-edit |
1204 | (isearch-abort) ;; outside of let to restore outside global values | |
1205 | ))) | |
1206 | ||
1207 | (defun isearch-nonincremental-exit-minibuffer () | |
1208 | (interactive) | |
1209 | (setq isearch-nonincremental t) | |
1210 | (exit-minibuffer)) | |
1211 | ||
1212 | (defun isearch-forward-exit-minibuffer () | |
1213 | (interactive) | |
1214 | (setq isearch-new-forward t) | |
1215 | (exit-minibuffer)) | |
8e1cae6d | 1216 | |
08200510 | 1217 | (defun isearch-reverse-exit-minibuffer () |
8e1cae6d | 1218 | (interactive) |
08200510 RS |
1219 | (setq isearch-new-forward nil) |
1220 | (exit-minibuffer)) | |
1221 | ||
19993c54 RS |
1222 | (defun isearch-cancel () |
1223 | "Terminate the search and go back to the starting point." | |
1224 | (interactive) | |
40637410 JL |
1225 | (if (and isearch-push-state-function isearch-cmds) |
1226 | ;; For defined push-state function, restore the first state. | |
1227 | ;; This calls pop-state function and restores original point. | |
1228 | (let ((isearch-cmds (last isearch-cmds))) | |
1229 | (isearch-top-state)) | |
1230 | (goto-char isearch-opoint)) | |
6a18e4e7 | 1231 | (isearch-done t) ; exit isearch |
0352b205 | 1232 | (isearch-clean-overlays) |
6a18e4e7 | 1233 | (signal 'quit nil)) ; and pass on quit signal |
08200510 RS |
1234 | |
1235 | (defun isearch-abort () | |
b7852303 | 1236 | "Abort incremental search mode if searching is successful, signaling quit. |
08200510 | 1237 | Otherwise, revert to previous successful search and continue searching. |
b7852303 | 1238 | Use `isearch-exit' to quit without signaling." |
08200510 | 1239 | (interactive) |
eb8c3be9 | 1240 | ;; (ding) signal instead below, if quitting |
8e1cae6d JB |
1241 | (discard-input) |
1242 | (if isearch-success | |
1243 | ;; If search is successful, move back to starting point | |
1244 | ;; and really do quit. | |
6a18e4e7 JL |
1245 | (progn |
1246 | (setq isearch-success nil) | |
1247 | (isearch-cancel)) | |
925a67ca RS |
1248 | ;; If search is failing, or has an incomplete regexp, |
1249 | ;; rub out until it is once more successful. | |
ba653a53 | 1250 | (while (or (not isearch-success) isearch-error) |
925a67ca | 1251 | (isearch-pop-state)) |
8e1cae6d JB |
1252 | (isearch-update))) |
1253 | ||
8e1cae6d JB |
1254 | (defun isearch-repeat (direction) |
1255 | ;; Utility for isearch-repeat-forward and -backward. | |
1256 | (if (eq isearch-forward (eq direction 'forward)) | |
1257 | ;; C-s in forward or C-r in reverse. | |
1258 | (if (equal isearch-string "") | |
1259 | ;; If search string is empty, use last one. | |
ece75c05 JL |
1260 | (if (null (if isearch-regexp regexp-search-ring search-ring)) |
1261 | (setq isearch-error "No previous search string") | |
1262 | (setq isearch-string | |
1263 | (if isearch-regexp | |
1264 | (car regexp-search-ring) | |
1265 | (car search-ring)) | |
1266 | isearch-message | |
1267 | (mapconcat 'isearch-text-char-description | |
1268 | isearch-string "") | |
1269 | isearch-case-fold-search isearch-last-case-fold-search)) | |
8e1cae6d JB |
1270 | ;; If already have what to search for, repeat it. |
1271 | (or isearch-success | |
02b2f510 | 1272 | (progn |
ba653a53 JL |
1273 | ;; Set isearch-wrapped before calling isearch-wrap-function |
1274 | (setq isearch-wrapped t) | |
6a18e4e7 JL |
1275 | (if isearch-wrap-function |
1276 | (funcall isearch-wrap-function) | |
ba653a53 | 1277 | (goto-char (if isearch-forward (point-min) (point-max))))))) |
8e1cae6d | 1278 | ;; C-s in reverse or C-r in forward, change direction. |
f4c49513 RS |
1279 | (setq isearch-forward (not isearch-forward) |
1280 | isearch-success t)) | |
8e1cae6d JB |
1281 | |
1282 | (setq isearch-barrier (point)) ; For subsequent \| if regexp. | |
6fefdc4b RS |
1283 | |
1284 | (if (equal isearch-string "") | |
1285 | (setq isearch-success t) | |
512bfd85 RS |
1286 | (if (and isearch-success |
1287 | (equal (point) isearch-other-end) | |
99ae9e9f | 1288 | (not isearch-just-started)) |
8e1cae6d JB |
1289 | ;; If repeating a search that found |
1290 | ;; an empty string, ensure we advance. | |
6fefdc4b RS |
1291 | (if (if isearch-forward (eobp) (bobp)) |
1292 | ;; If there's nowhere to advance to, fail (and wrap next time). | |
1293 | (progn | |
1294 | (setq isearch-success nil) | |
1295 | (ding)) | |
1296 | (forward-char (if isearch-forward 1 -1)) | |
1297 | (isearch-search)) | |
1298 | (isearch-search))) | |
1299 | ||
8e1cae6d JB |
1300 | (isearch-push-state) |
1301 | (isearch-update)) | |
1302 | ||
1303 | (defun isearch-repeat-forward () | |
1304 | "Repeat incremental search forwards." | |
1305 | (interactive) | |
1306 | (isearch-repeat 'forward)) | |
1307 | ||
1308 | (defun isearch-repeat-backward () | |
1309 | "Repeat incremental search backwards." | |
1310 | (interactive) | |
1311 | (isearch-repeat 'backward)) | |
1312 | ||
1313 | (defun isearch-toggle-regexp () | |
1314 | "Toggle regexp searching on or off." | |
1315 | ;; The status stack is left unchanged. | |
1316 | (interactive) | |
1317 | (setq isearch-regexp (not isearch-regexp)) | |
08200510 | 1318 | (if isearch-regexp (setq isearch-word nil)) |
d85519bb | 1319 | (setq isearch-success t isearch-adjusted t) |
8e1cae6d JB |
1320 | (isearch-update)) |
1321 | ||
70bc5268 JL |
1322 | (defun isearch-toggle-word () |
1323 | "Toggle word searching on or off." | |
1324 | (interactive) | |
1325 | (setq isearch-word (not isearch-word)) | |
1326 | (setq isearch-success t isearch-adjusted t) | |
1327 | (isearch-update)) | |
1328 | ||
4453091d RS |
1329 | (defun isearch-toggle-case-fold () |
1330 | "Toggle case folding in searching on or off." | |
1331 | (interactive) | |
1332 | (setq isearch-case-fold-search | |
1333 | (if isearch-case-fold-search nil 'yes)) | |
a56687f1 KH |
1334 | (let ((message-log-max nil)) |
1335 | (message "%s%s [case %ssensitive]" | |
1336 | (isearch-message-prefix nil nil isearch-nonincremental) | |
1337 | isearch-message | |
1338 | (if isearch-case-fold-search "in" ""))) | |
d85519bb | 1339 | (setq isearch-success t isearch-adjusted t) |
4453091d RS |
1340 | (sit-for 1) |
1341 | (isearch-update)) | |
1342 | ||
9d14752f JL |
1343 | (defun isearch-query-replace (&optional delimited regexp-flag) |
1344 | "Start `query-replace' with string to replace from last search string. | |
1345 | The arg DELIMITED (prefix arg if interactive), if non-nil, means replace | |
1346 | only matches surrounded by word boundaries. Note that using the prefix arg | |
1347 | is possible only when `isearch-allow-scroll' is non-nil, and it don't | |
1348 | always provides the correct matches for `query-replace', so the preferred | |
1349 | way to run word replacements from Isearch is `M-s w ... M-%'." | |
1350 | (interactive | |
1351 | (list current-prefix-arg)) | |
81e898ea | 1352 | (barf-if-buffer-read-only) |
d85519bb | 1353 | (if regexp-flag (setq isearch-regexp t)) |
6e3057bb JL |
1354 | (let ((case-fold-search isearch-case-fold-search) |
1355 | ;; set `search-upper-case' to nil to not call | |
1356 | ;; `isearch-no-upper-case-p' in `perform-replace' | |
8d32ed64 JL |
1357 | (search-upper-case nil) |
1358 | ;; Set `isearch-recursive-edit' to nil to prevent calling | |
1359 | ;; `exit-recursive-edit' in `isearch-done' that terminates | |
1360 | ;; the execution of this command when it is non-nil. | |
1361 | ;; We call `exit-recursive-edit' explicitly at the end below. | |
1362 | (isearch-recursive-edit nil)) | |
1363 | (isearch-done nil t) | |
74820eb5 | 1364 | (isearch-clean-overlays) |
e7e4ea21 JL |
1365 | (if (and isearch-other-end |
1366 | (< isearch-other-end (point)) | |
d85519bb | 1367 | (not (and transient-mark-mode mark-active |
fa81f010 | 1368 | (< (mark) (point))))) |
d85519bb JL |
1369 | (goto-char isearch-other-end)) |
1370 | (set query-replace-from-history-variable | |
1371 | (cons isearch-string | |
1372 | (symbol-value query-replace-from-history-variable))) | |
81e898ea SM |
1373 | (perform-replace |
1374 | isearch-string | |
d85519bb JL |
1375 | (query-replace-read-to |
1376 | isearch-string | |
9d14752f JL |
1377 | (concat "Query replace" |
1378 | (if (or delimited isearch-word) " word" "") | |
1379 | (if isearch-regexp " regexp" "") | |
1380 | (if (and transient-mark-mode mark-active) " in region" "")) | |
d85519bb | 1381 | isearch-regexp) |
9d14752f | 1382 | t isearch-regexp (or delimited isearch-word) nil nil |
d85519bb | 1383 | (if (and transient-mark-mode mark-active) (region-beginning)) |
8d32ed64 JL |
1384 | (if (and transient-mark-mode mark-active) (region-end)))) |
1385 | (and isearch-recursive-edit (exit-recursive-edit))) | |
74820eb5 | 1386 | |
9d14752f JL |
1387 | (defun isearch-query-replace-regexp (&optional delimited) |
1388 | "Start `query-replace-regexp' with string to replace from last search string. | |
1389 | See `isearch-query-replace' for more information." | |
1390 | (interactive | |
1391 | (list current-prefix-arg)) | |
1392 | (isearch-query-replace delimited t)) | |
74820eb5 | 1393 | |
6e3057bb JL |
1394 | (defun isearch-occur (regexp &optional nlines) |
1395 | "Run `occur' with regexp to search from the current search string. | |
1396 | Interactively, REGEXP is the current search regexp or a quoted search | |
1397 | string. NLINES has the same meaning as in `occur'." | |
1398 | (interactive | |
1399 | (list | |
8d32ed64 | 1400 | (cond |
b87573f0 JL |
1401 | (isearch-word (concat "\\b" (replace-regexp-in-string |
1402 | "\\W+" "\\W+" | |
1403 | (replace-regexp-in-string | |
1404 | "^\\W+\\|\\W+$" "" isearch-string) | |
1405 | nil t) | |
1406 | "\\b")) | |
8d32ed64 JL |
1407 | (isearch-regexp isearch-string) |
1408 | (t (regexp-quote isearch-string))) | |
6e3057bb JL |
1409 | (if current-prefix-arg (prefix-numeric-value current-prefix-arg)))) |
1410 | (let ((case-fold-search isearch-case-fold-search) | |
1411 | ;; set `search-upper-case' to nil to not call | |
1412 | ;; `isearch-no-upper-case-p' in `occur-1' | |
1413 | (search-upper-case nil)) | |
1414 | (occur regexp nlines))) | |
1415 | ||
11c9f489 JL |
1416 | (declare-function hi-lock-read-face-name "hi-lock" ()) |
1417 | ||
8938c0bc | 1418 | (defun isearch-highlight-regexp () |
11c9f489 | 1419 | "Run `highlight-regexp' with regexp from the current search string. |
8938c0bc JL |
1420 | It exits Isearch mode and calls `hi-lock-face-buffer' with its regexp |
1421 | argument from the last search regexp or a quoted search string, | |
1422 | and reads its face argument using `hi-lock-read-face-name'." | |
1423 | (interactive) | |
8d32ed64 JL |
1424 | (let ( |
1425 | ;; Set `isearch-recursive-edit' to nil to prevent calling | |
1426 | ;; `exit-recursive-edit' in `isearch-done' that terminates | |
1427 | ;; the execution of this command when it is non-nil. | |
1428 | ;; We call `exit-recursive-edit' explicitly at the end below. | |
1429 | (isearch-recursive-edit nil)) | |
1430 | (isearch-done nil t) | |
1431 | (isearch-clean-overlays)) | |
8938c0bc | 1432 | (require 'hi-lock nil t) |
36bdf1ff CY |
1433 | (let ((string (cond (isearch-regexp isearch-string) |
1434 | ((if (and (eq isearch-case-fold-search t) | |
1435 | search-upper-case) | |
1436 | (isearch-no-upper-case-p | |
1437 | isearch-string isearch-regexp) | |
1438 | isearch-case-fold-search) | |
1439 | ;; Turn isearch-string into a case-insensitive | |
1440 | ;; regexp. | |
9c7a6b15 CY |
1441 | (mapconcat |
1442 | (lambda (c) | |
1443 | (let ((s (string c))) | |
1444 | (if (string-match "[[:alpha:]]" s) | |
1445 | (format "[%s%s]" (upcase s) (downcase s)) | |
1446 | (regexp-quote s)))) | |
1447 | isearch-string "")) | |
36bdf1ff | 1448 | (t (regexp-quote isearch-string))))) |
8d32ed64 JL |
1449 | (hi-lock-face-buffer string (hi-lock-read-face-name))) |
1450 | (and isearch-recursive-edit (exit-recursive-edit))) | |
11c9f489 | 1451 | |
74820eb5 | 1452 | \f |
8e1cae6d | 1453 | (defun isearch-delete-char () |
d6b8a1c0 | 1454 | "Discard last input item and move point back. |
8e1cae6d JB |
1455 | If no previous match was done, just beep." |
1456 | (interactive) | |
1457 | (if (null (cdr isearch-cmds)) | |
1458 | (ding) | |
1459 | (isearch-pop-state)) | |
1460 | (isearch-update)) | |
1461 | ||
74820eb5 JL |
1462 | (defun isearch-del-char (&optional arg) |
1463 | "Delete character from end of search string and search again. | |
1464 | If search string is empty, just beep." | |
1465 | (interactive "p") | |
1466 | (if (= 0 (length isearch-string)) | |
35904fd3 | 1467 | (ding) |
74820eb5 | 1468 | (setq isearch-string (substring isearch-string 0 (- (or arg 1))) |
35904fd3 | 1469 | isearch-message (mapconcat 'isearch-text-char-description |
02b99a17 JL |
1470 | isearch-string ""))) |
1471 | ;; Use the isearch-other-end as new starting point to be able | |
1472 | ;; to find the remaining part of the search string again. | |
1473 | (if isearch-other-end (goto-char isearch-other-end)) | |
1474 | (isearch-search) | |
1475 | (isearch-push-state) | |
1476 | (isearch-update)) | |
8e1cae6d | 1477 | |
9cf081fa KH |
1478 | (defun isearch-yank-string (string) |
1479 | "Pull STRING into search string." | |
1480 | ;; Downcase the string if not supposed to case-fold yanked strings. | |
1481 | (if (and isearch-case-fold-search | |
1482 | (eq 'not-yanks search-upper-case)) | |
1483 | (setq string (downcase string))) | |
1484 | (if isearch-regexp (setq string (regexp-quote string))) | |
5d944a8f JL |
1485 | ;; Don't move cursor in reverse search. |
1486 | (setq isearch-yank-flag t) | |
1487 | (isearch-process-search-string | |
1488 | string (mapconcat 'isearch-text-char-description string ""))) | |
8e1cae6d | 1489 | |
30d47262 RS |
1490 | (defun isearch-yank-kill () |
1491 | "Pull string from kill ring into search string." | |
1492 | (interactive) | |
9cf081fa KH |
1493 | (isearch-yank-string (current-kill 0))) |
1494 | ||
1495 | (defun isearch-yank-x-selection () | |
117132a6 | 1496 | "Pull current X selection into search string." |
9cf081fa KH |
1497 | (interactive) |
1498 | (isearch-yank-string (x-get-selection))) | |
8e1cae6d | 1499 | |
e4af1426 | 1500 | |
191f025a | 1501 | (defun isearch-mouse-2 (click) |
e4af1426 | 1502 | "Handle mouse-2 in Isearch mode. |
117132a6 | 1503 | For a click in the echo area, invoke `isearch-yank-x-selection'. |
f3b5dd74 DK |
1504 | Otherwise invoke whatever the calling mouse-2 command sequence |
1505 | is bound to outside of Isearch." | |
191f025a | 1506 | (interactive "e") |
e4af1426 GM |
1507 | (let* ((w (posn-window (event-start click))) |
1508 | (overriding-terminal-local-map nil) | |
f3b5dd74 | 1509 | (binding (key-binding (this-command-keys-vector) t))) |
117132a6 DL |
1510 | (if (and (window-minibuffer-p w) |
1511 | (not (minibuffer-window-active-p w))) ; in echo area | |
1512 | (isearch-yank-x-selection) | |
cd59ea72 | 1513 | (when (functionp binding) |
191f025a | 1514 | (call-interactively binding))))) |
e4af1426 | 1515 | |
29e53a0a KF |
1516 | (defun isearch-yank-internal (jumpform) |
1517 | "Pull the text from point to the point reached by JUMPFORM. | |
4b65254d JB |
1518 | JUMPFORM is a lambda expression that takes no arguments and returns |
1519 | a buffer position, possibly having moved point to that position. | |
1520 | For example, it might move point forward by a word and return point, | |
1521 | or it might return the position of the end of the line." | |
9cf081fa KH |
1522 | (isearch-yank-string |
1523 | (save-excursion | |
1524 | (and (not isearch-forward) isearch-other-end | |
1525 | (goto-char isearch-other-end)) | |
29e53a0a KF |
1526 | (buffer-substring-no-properties (point) (funcall jumpform))))) |
1527 | ||
74820eb5 JL |
1528 | (defun isearch-yank-char-in-minibuffer (&optional arg) |
1529 | "Pull next character from buffer into end of search string in minibuffer." | |
1530 | (interactive "p") | |
1531 | (if (eobp) | |
1532 | (insert | |
00c42405 | 1533 | (with-current-buffer (cadr (buffer-list)) |
74820eb5 JL |
1534 | (buffer-substring-no-properties |
1535 | (point) (progn (forward-char arg) (point))))) | |
1536 | (forward-char arg))) | |
1537 | ||
1538 | (defun isearch-yank-char (&optional arg) | |
35904fd3 | 1539 | "Pull next character from buffer into search string." |
74820eb5 JL |
1540 | (interactive "p") |
1541 | (isearch-yank-internal (lambda () (forward-char arg) (point)))) | |
29e53a0a | 1542 | |
868bf43a RS |
1543 | (defun isearch-yank-word-or-char () |
1544 | "Pull next character or word from buffer into search string." | |
1545 | (interactive) | |
21d90805 | 1546 | (isearch-yank-internal |
b48ca14f | 1547 | (lambda () |
21d90805 KF |
1548 | (if (or (= (char-syntax (or (char-after) 0)) ?w) |
1549 | (= (char-syntax (or (char-after (1+ (point))) 0)) ?w)) | |
1550 | (forward-word 1) | |
1551 | (forward-char 1)) (point)))) | |
868bf43a | 1552 | |
29e53a0a KF |
1553 | (defun isearch-yank-word () |
1554 | "Pull next word from buffer into search string." | |
1555 | (interactive) | |
1556 | (isearch-yank-internal (lambda () (forward-word 1) (point)))) | |
8e1cae6d JB |
1557 | |
1558 | (defun isearch-yank-line () | |
1559 | "Pull rest of line from buffer into search string." | |
1560 | (interactive) | |
a1883913 | 1561 | (isearch-yank-internal |
933f8467 RF |
1562 | (lambda () (let ((inhibit-field-text-motion t)) |
1563 | (line-end-position (if (eolp) 2 1)))))) | |
8e1cae6d JB |
1564 | |
1565 | (defun isearch-search-and-update () | |
1566 | ;; Do the search and update the display. | |
191f025a | 1567 | (when (or isearch-success |
35904fd3 JL |
1568 | ;; Unsuccessful regexp search may become successful by |
1569 | ;; addition of characters which make isearch-string valid | |
cd59ea72 SM |
1570 | isearch-regexp |
1571 | ;; If the string was found but was completely invisible, | |
1572 | ;; it might now be partly visible, so try again. | |
1573 | (prog1 isearch-hidden (setq isearch-hidden nil))) | |
8e1cae6d JB |
1574 | ;; In reverse search, adding stuff at |
1575 | ;; the end may cause zero or many more chars to be | |
1576 | ;; matched, in the string following point. | |
1577 | ;; Allow all those possibilities without moving point as | |
1578 | ;; long as the match does not extend past search origin. | |
1579 | (if (and (not isearch-forward) (not isearch-adjusted) | |
1580 | (condition-case () | |
99ae9e9f | 1581 | (let ((case-fold-search isearch-case-fold-search)) |
ec0a2f45 KH |
1582 | (if (and (eq case-fold-search t) search-upper-case) |
1583 | (setq case-fold-search | |
1584 | (isearch-no-upper-case-p isearch-string isearch-regexp))) | |
99ae9e9f KH |
1585 | (looking-at (if isearch-regexp isearch-string |
1586 | (regexp-quote isearch-string)))) | |
8e1cae6d | 1587 | (error nil)) |
bd6a8414 | 1588 | (or isearch-yank-flag |
191f025a | 1589 | (<= (match-end 0) |
bd6a8414 | 1590 | (min isearch-opoint isearch-barrier)))) |
d64b1d96 | 1591 | (progn |
191f025a | 1592 | (setq isearch-success t |
ba653a53 | 1593 | isearch-error nil |
d64b1d96 RS |
1594 | isearch-other-end (match-end 0)) |
1595 | (if (and (eq isearch-case-fold-search t) search-upper-case) | |
1596 | (setq isearch-case-fold-search | |
1597 | (isearch-no-upper-case-p isearch-string isearch-regexp)))) | |
8e1cae6d JB |
1598 | ;; Not regexp, not reverse, or no match at point. |
1599 | (if (and isearch-other-end (not isearch-adjusted)) | |
1600 | (goto-char (if isearch-forward isearch-other-end | |
191f025a SM |
1601 | (min isearch-opoint |
1602 | isearch-barrier | |
8e1cae6d JB |
1603 | (1+ isearch-other-end))))) |
1604 | (isearch-search) | |
1605 | )) | |
1606 | (isearch-push-state) | |
1607 | (if isearch-op-fun (funcall isearch-op-fun)) | |
1608 | (isearch-update)) | |
1609 | ||
1610 | ||
08e3de69 | 1611 | ;; *, ?, }, and | chars can make a regexp more liberal. |
08200510 | 1612 | ;; They can make a regexp match sooner or make it succeed instead of failing. |
8e1cae6d JB |
1613 | ;; So go back to place last successful search started |
1614 | ;; or to the last ^S/^R (barrier), whichever is nearer. | |
08200510 | 1615 | ;; + needs no special handling because the string must match at least once. |
8e1cae6d | 1616 | |
08e3de69 EZ |
1617 | (defun isearch-backslash (str) |
1618 | "Return t if STR ends in an odd number of backslashes." | |
1619 | (= (mod (- (length str) (string-match "\\\\*\\'" str)) 2) 1)) | |
1620 | ||
1621 | (defun isearch-fallback (want-backslash &optional allow-invalid to-barrier) | |
1622 | "Return point to previous successful match to allow regexp liberalization. | |
1623 | \\<isearch-mode-map> | |
4b65254d | 1624 | Respects \\[isearch-repeat-forward] and \\[isearch-repeat-backward] by \ |
08e3de69 EZ |
1625 | stopping at `isearch-barrier' as needed. |
1626 | ||
6f2df0f4 JL |
1627 | Do nothing if a backslash is escaping the liberalizing character. |
1628 | If WANT-BACKSLASH is non-nil, invert this behavior (for \\} and \\|). | |
08e3de69 | 1629 | |
6f2df0f4 JL |
1630 | Do nothing if regexp has recently been invalid unless optional |
1631 | ALLOW-INVALID non-nil. | |
08e3de69 | 1632 | |
6f2df0f4 JL |
1633 | If optional TO-BARRIER non-nil, ignore previous matches and go exactly |
1634 | to the barrier." | |
08e3de69 EZ |
1635 | ;; (eq (not a) (not b)) makes all non-nil values equivalent |
1636 | (when (and isearch-regexp (eq (not (isearch-backslash isearch-string)) | |
1637 | (not want-backslash)) | |
1638 | ;; We have to check 2 stack frames because the last might be | |
1639 | ;; invalid just because of a backslash. | |
ba653a53 JL |
1640 | (or (not isearch-error) |
1641 | (not (isearch-error-state (cadr isearch-cmds))) | |
08e3de69 EZ |
1642 | allow-invalid)) |
1643 | (if to-barrier | |
1644 | (progn (goto-char isearch-barrier) | |
1645 | (setq isearch-adjusted t)) | |
1646 | (let* ((stack isearch-cmds) | |
1647 | (previous (cdr stack)) ; lookbelow in the stack | |
1648 | (frame (car stack))) | |
1649 | ;; Walk down the stack looking for a valid regexp (as of course only | |
1650 | ;; they can be the previous successful match); this conveniently | |
1651 | ;; removes all bracket-sets and groups that might be in the way, as | |
1652 | ;; well as partial \{\} constructs that the code below leaves behind. | |
1653 | ;; Also skip over postfix operators -- though horrid, | |
9b9a4122 | 1654 | ;; 'ab?\{5,6\}+\{1,2\}*' is perfectly valid. |
08e3de69 | 1655 | (while (and previous |
ba653a53 | 1656 | (or (isearch-error-state frame) |
1a699acf | 1657 | (let* ((string (isearch-string-state frame)) |
08e3de69 EZ |
1658 | (lchar (aref string (1- (length string))))) |
1659 | ;; The operators aren't always operators; check | |
1660 | ;; backslashes. This doesn't handle the case of | |
1661 | ;; operators at the beginning of the regexp not | |
1662 | ;; being special, but then we should fall back to | |
1663 | ;; the barrier anyway because it's all optional. | |
1664 | (if (isearch-backslash | |
1a699acf | 1665 | (isearch-string-state (car previous))) |
08e3de69 EZ |
1666 | (eq lchar ?\}) |
1667 | (memq lchar '(?* ?? ?+)))))) | |
1668 | (setq stack previous previous (cdr previous) frame (car stack))) | |
1669 | (when stack | |
1670 | ;; `stack' now refers the most recent valid regexp that is not at | |
1671 | ;; all optional in its last term. Now dig one level deeper and find | |
1672 | ;; what matched before that. | |
5a1f9fcf JL |
1673 | (let ((last-other-end |
1674 | (or (and (car previous) | |
1675 | (isearch-other-end-state (car previous))) | |
1676 | isearch-barrier))) | |
08e3de69 EZ |
1677 | (goto-char (if isearch-forward |
1678 | (max last-other-end isearch-barrier) | |
1679 | (min last-other-end isearch-barrier))) | |
6f2df0f4 | 1680 | (setq isearch-adjusted t))))))) |
8e1cae6d | 1681 | |
6b61353c KH |
1682 | (defun isearch-unread-key-sequence (keylist) |
1683 | "Unread the given key-sequence KEYLIST. | |
1684 | Scroll-bar or mode-line events are processed appropriately." | |
1685 | (cancel-kbd-macro-events) | |
1686 | (apply 'isearch-unread keylist) | |
1687 | ;; If the event was a scroll-bar or mode-line click, the event will have | |
1688 | ;; been prefixed by a symbol such as vertical-scroll-bar. We must remove | |
1689 | ;; it here, because this symbol will be attached to the event again next | |
1690 | ;; time it gets read by read-key-sequence. | |
1691 | ;; | |
1692 | ;; (Old comment from isearch-other-meta-char: "Note that we don't have to | |
1693 | ;; modify the event anymore in 21 because read_key_sequence no longer | |
1694 | ;; modifies events to produce fake prefix keys.") | |
1695 | (if (and (> (length keylist) 1) | |
1696 | (symbolp (car keylist)) | |
1697 | (listp (cadr keylist)) | |
1698 | (not (numberp (posn-point | |
1699 | (event-start (cadr keylist) ))))) | |
1700 | (pop unread-command-events))) | |
1701 | ||
1702 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1703 | ;; scrolling within Isearch mode. Alan Mackenzie (acm@muc.de), 2003/2/24 | |
1704 | ;; | |
1705 | ;; The idea here is that certain vertical scrolling commands (like C-l | |
1706 | ;; `recenter') should be usable WITHIN Isearch mode. For a command to be | |
1707 | ;; suitable, it must NOT alter the buffer, swap to another buffer or frame, | |
1708 | ;; tamper with isearch's state, or move point. It is unacceptable for the | |
1709 | ;; search string to be scrolled out of the current window. If a command | |
1710 | ;; attempts this, we scroll the text back again. | |
1711 | ;; | |
1712 | ;; We implement this feature with a property called `isearch-scroll'. | |
ad40eec5 JL |
1713 | ;; If a command's symbol has the value t for this property or for the |
1714 | ;; `scroll-command' property, it is a scrolling command. The feature | |
1715 | ;; needs to be enabled by setting the customizable variable | |
1716 | ;; `isearch-allow-scroll' to a non-nil value. | |
6b61353c KH |
1717 | ;; |
1718 | ;; The universal argument commands (e.g. C-u) in simple.el are marked | |
1719 | ;; as scrolling commands, and isearch.el has been amended to allow | |
1720 | ;; prefix arguments to be passed through to scrolling commands. Thus | |
1721 | ;; M-0 C-l will scroll point to the top of the window. | |
1722 | ;; | |
1723 | ;; Horizontal scrolling commands are currently not catered for. | |
1724 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1725 | ||
1726 | ;; Set the isearch-scroll property on some standard functions: | |
1727 | ;; Scroll-bar functions: | |
1728 | (if (fboundp 'scroll-bar-toolkit-scroll) | |
1729 | (put 'scroll-bar-toolkit-scroll 'isearch-scroll t)) | |
6b61353c KH |
1730 | (if (fboundp 'w32-handle-scroll-bar-event) |
1731 | (put 'w32-handle-scroll-bar-event 'isearch-scroll t)) | |
1732 | ||
ad40eec5 JL |
1733 | ;; Commands which scroll the window (some scroll commands |
1734 | ;; already have the `scroll-command' property on them): | |
6b61353c | 1735 | (put 'recenter 'isearch-scroll t) |
21d9ed8b | 1736 | (put 'recenter-top-bottom 'isearch-scroll t) |
6b61353c | 1737 | (put 'reposition-window 'isearch-scroll t) |
6b61353c KH |
1738 | |
1739 | ;; Commands which act on the other window | |
1740 | (put 'list-buffers 'isearch-scroll t) | |
1741 | (put 'scroll-other-window 'isearch-scroll t) | |
1742 | (put 'scroll-other-window-down 'isearch-scroll t) | |
1743 | (put 'beginning-of-buffer-other-window 'isearch-scroll t) | |
1744 | (put 'end-of-buffer-other-window 'isearch-scroll t) | |
1745 | ||
1746 | ;; Commands which change the window layout | |
1747 | (put 'delete-other-windows 'isearch-scroll t) | |
1748 | (put 'balance-windows 'isearch-scroll t) | |
1749 | (put 'split-window-vertically 'isearch-scroll t) | |
7f55d3b7 | 1750 | (put 'split-window-horizontally 'isearch-scroll t) |
6b61353c KH |
1751 | (put 'enlarge-window 'isearch-scroll t) |
1752 | ||
1753 | ;; Universal argument commands | |
1754 | (put 'universal-argument 'isearch-scroll t) | |
1755 | (put 'negative-argument 'isearch-scroll t) | |
1756 | (put 'digit-argument 'isearch-scroll t) | |
1757 | ||
1758 | (defcustom isearch-allow-scroll nil | |
9425f8e1 CY |
1759 | "Whether scrolling is allowed during incremental search. |
1760 | If non-nil, scrolling commands can be used in Isearch mode. | |
1761 | However, the current match will never scroll offscreen. | |
a4b000fb | 1762 | If nil, scrolling commands will first cancel Isearch mode." |
6b61353c KH |
1763 | :type 'boolean |
1764 | :group 'isearch) | |
1765 | ||
1766 | (defun isearch-string-out-of-window (isearch-point) | |
1767 | "Test whether the search string is currently outside of the window. | |
1768 | Return nil if it's completely visible, or if point is visible, | |
1769 | together with as much of the search string as will fit; the symbol | |
1770 | `above' if we need to scroll the text downwards; the symbol `below', | |
1771 | if upwards." | |
1772 | (let ((w-start (window-start)) | |
1773 | (w-end (window-end nil t)) | |
1774 | (w-L1 (save-excursion (move-to-window-line 1) (point))) | |
1775 | (w-L-1 (save-excursion (move-to-window-line -1) (point))) | |
1776 | start end) ; start and end of search string in buffer | |
1777 | (if isearch-forward | |
1778 | (setq end isearch-point start (or isearch-other-end isearch-point)) | |
1779 | (setq start isearch-point end (or isearch-other-end isearch-point))) | |
1780 | (cond ((or (and (>= start w-start) (<= end w-end)) | |
1781 | (if isearch-forward | |
1782 | (and (>= isearch-point w-L-1) (< isearch-point w-end)) ; point on Line -1 | |
1783 | (and (>= isearch-point w-start) (< isearch-point w-L1)))) ; point on Line 0 | |
1784 | nil) | |
1785 | ((and (< start w-start) | |
1786 | (< isearch-point w-L-1)) | |
1787 | 'above) | |
1788 | (t 'below)))) | |
1789 | ||
1790 | (defun isearch-back-into-window (above isearch-point) | |
1791 | "Scroll the window to bring the search string back into view. | |
1792 | Restore point to ISEARCH-POINT in the process. ABOVE is t when the | |
1793 | search string is above the top of the window, nil when it is beneath | |
1794 | the bottom." | |
1795 | (let (start end) | |
1796 | (if isearch-forward | |
1797 | (setq end isearch-point start (or isearch-other-end isearch-point)) | |
1798 | (setq start isearch-point end (or isearch-other-end isearch-point))) | |
1799 | (if above | |
1800 | (progn | |
1801 | (goto-char start) | |
1802 | (recenter 0) | |
1803 | (when (>= isearch-point (window-end nil t)) | |
1804 | (goto-char isearch-point) | |
1805 | (recenter -1))) | |
1806 | (goto-char end) | |
1807 | (recenter -1) | |
1808 | (when (< isearch-point (window-start)) | |
1809 | (goto-char isearch-point) | |
1810 | (recenter 0)))) | |
1811 | (goto-char isearch-point)) | |
1812 | ||
1813 | (defun isearch-reread-key-sequence-naturally (keylist) | |
1814 | "Reread key sequence KEYLIST with Isearch mode's keymap deactivated. | |
1815 | Return the key sequence as a string/vector." | |
1816 | (isearch-unread-key-sequence keylist) | |
1817 | (let (overriding-terminal-local-map) | |
1818 | (read-key-sequence nil))) ; This will go through function-key-map, if nec. | |
1819 | ||
1820 | (defun isearch-lookup-scroll-key (key-seq) | |
1821 | "If KEY-SEQ is bound to a scrolling command, return it as a symbol. | |
1822 | Otherwise return nil." | |
1823 | (let* ((overriding-terminal-local-map nil) | |
1824 | (binding (key-binding key-seq))) | |
1825 | (and binding (symbolp binding) (commandp binding) | |
ad40eec5 JL |
1826 | (or (eq (get binding 'isearch-scroll) t) |
1827 | (eq (get binding 'scroll-command) t)) | |
6b61353c | 1828 | binding))) |
8e1cae6d | 1829 | |
b457cc3b | 1830 | (defalias 'isearch-other-control-char 'isearch-other-meta-char) |
8e1cae6d | 1831 | |
6b61353c KH |
1832 | (defun isearch-other-meta-char (&optional arg) |
1833 | "Process a miscellaneous key sequence in Isearch mode. | |
1834 | ||
1835 | Try to convert the current key-sequence to something usable in Isearch | |
1836 | mode, either by converting it with `function-key-map', downcasing a | |
1837 | key with C-<upper case>, or finding a \"scrolling command\" bound to | |
1838 | it. \(In the last case, we may have to read more events.) If so, | |
1839 | either unread the converted sequence or execute the command. | |
1840 | ||
1841 | Otherwise, if `search-exit-option' is non-nil (the default) unread the | |
1842 | key-sequence and exit the search normally. If it is the symbol | |
1843 | `edit', the search string is edited in the minibuffer and the meta | |
1844 | character is unread so that it applies to editing the string. | |
1845 | ||
1846 | ARG is the prefix argument. It will be transmitted through to the | |
1847 | scrolling command or to the command whose key-sequence exits | |
1848 | Isearch mode." | |
1849 | (interactive "P") | |
1850 | (let* ((key (if current-prefix-arg ; not nec the same as ARG | |
1851 | (substring (this-command-keys) universal-argument-num-events) | |
1852 | (this-command-keys))) | |
c6431f12 | 1853 | (main-event (aref key 0)) |
6b61353c KH |
1854 | (keylist (listify-key-sequence key)) |
1855 | scroll-command isearch-point) | |
24b5caec | 1856 | (cond ((and (= (length key) 1) |
c40bb1ba | 1857 | (let ((lookup (lookup-key local-function-key-map key))) |
3f866b53 KH |
1858 | (not (or (null lookup) (integerp lookup) |
1859 | (keymapp lookup))))) | |
24b5caec RS |
1860 | ;; Handle a function key that translates into something else. |
1861 | ;; If the key has a global definition too, | |
1862 | ;; exit and unread the key itself, so its global definition runs. | |
1863 | ;; Otherwise, unread the translation, | |
1864 | ;; so that the translated key takes effect within isearch. | |
d94eb6eb | 1865 | (cancel-kbd-macro-events) |
24b5caec | 1866 | (if (lookup-key global-map key) |
02b2f510 | 1867 | (progn |
24b5caec RS |
1868 | (isearch-done) |
1869 | (apply 'isearch-unread keylist)) | |
a5cc922e | 1870 | (setq keylist |
c40bb1ba | 1871 | (listify-key-sequence (lookup-key local-function-key-map key))) |
a5cc922e KH |
1872 | (while keylist |
1873 | (setq key (car keylist)) | |
1874 | ;; If KEY is a printing char, we handle it here | |
1875 | ;; directly to avoid the input method and keyboard | |
1876 | ;; coding system translating it. | |
1877 | (if (and (integerp key) | |
6480c508 | 1878 | (>= key ?\s) (/= key 127) (< key 256)) |
a5cc922e KH |
1879 | (progn |
1880 | (isearch-process-search-char key) | |
1881 | (setq keylist (cdr keylist))) | |
1882 | ;; As the remaining keys in KEYLIST can't be handled | |
1883 | ;; here, we must reread them. | |
1884 | (apply 'isearch-unread keylist) | |
1885 | (setq keylist nil))))) | |
24b5caec | 1886 | ( |
c6431f12 KH |
1887 | ;; Handle an undefined shifted control character |
1888 | ;; by downshifting it if that makes it defined. | |
1889 | ;; (As read-key-sequence would normally do, | |
1890 | ;; if we didn't have a default definition.) | |
1891 | (let ((mods (event-modifiers main-event))) | |
1892 | (and (integerp main-event) | |
1893 | (memq 'shift mods) | |
1894 | (memq 'control mods) | |
f438bf5c EZ |
1895 | (not (memq (lookup-key isearch-mode-map |
1896 | (let ((copy (copy-sequence key))) | |
1897 | (aset copy 0 | |
1898 | (- main-event | |
1899 | (- ?\C-\S-a ?\C-a))) | |
1900 | copy) | |
1901 | nil) | |
1902 | '(nil | |
1903 | isearch-other-control-char))))) | |
c6431f12 | 1904 | (setcar keylist (- main-event (- ?\C-\S-a ?\C-a))) |
d94eb6eb | 1905 | (cancel-kbd-macro-events) |
c6431f12 KH |
1906 | (apply 'isearch-unread keylist)) |
1907 | ((eq search-exit-option 'edit) | |
1908 | (apply 'isearch-unread keylist) | |
1909 | (isearch-edit-string)) | |
6b61353c KH |
1910 | ;; Handle a scrolling function. |
1911 | ((and isearch-allow-scroll | |
1912 | (progn (setq key (isearch-reread-key-sequence-naturally keylist)) | |
1913 | (setq keylist (listify-key-sequence key)) | |
1914 | (setq main-event (aref key 0)) | |
1915 | (setq scroll-command (isearch-lookup-scroll-key key)))) | |
1916 | ;; From this point onwards, KEY, KEYLIST and MAIN-EVENT hold a | |
1917 | ;; complete key sequence, possibly as modified by function-key-map, | |
1918 | ;; not merely the one or two event fragment which invoked | |
1919 | ;; isearch-other-meta-char in the first place. | |
1920 | (setq isearch-point (point)) | |
1921 | (setq prefix-arg arg) | |
1922 | (command-execute scroll-command) | |
1923 | (let ((ab-bel (isearch-string-out-of-window isearch-point))) | |
1924 | (if ab-bel | |
35904fd3 | 1925 | (isearch-back-into-window (eq ab-bel 'above) isearch-point) |
d85519bb | 1926 | (goto-char isearch-point))) |
6b61353c | 1927 | (isearch-update)) |
72a69d7f JL |
1928 | ;; A mouse click on the isearch message starts editing the search string |
1929 | ((and (eq (car-safe main-event) 'down-mouse-1) | |
1930 | (window-minibuffer-p (posn-window (event-start main-event)))) | |
1931 | ;; Swallow the up-event. | |
1932 | (read-event) | |
1933 | (isearch-edit-string)) | |
c6431f12 KH |
1934 | (search-exit-option |
1935 | (let (window) | |
6b61353c KH |
1936 | (isearch-unread-key-sequence keylist) |
1937 | (setq main-event (car unread-command-events)) | |
3fb01f36 | 1938 | |
346f18dc GM |
1939 | ;; If we got a mouse click event, that event contains the |
1940 | ;; window clicked on. maybe it was read with the buffer | |
c6431f12 KH |
1941 | ;; it was clicked on. If so, that buffer, not the current one, |
1942 | ;; is in isearch mode. So end the search in that buffer. | |
346f18dc GM |
1943 | |
1944 | ;; ??? I have no idea what this if checks for, but it's | |
1945 | ;; obviously wrong for the case that a down-mouse event | |
1946 | ;; on another window invokes this function. The event | |
1947 | ;; will contain the window clicked on and that window's | |
b48ca14f | 1948 | ;; buffer is certainly not always in Isearch mode. |
346f18dc GM |
1949 | ;; |
1950 | ;; Leave the code in, but check for current buffer not | |
1951 | ;; being in Isearch mode for now, until someone tells | |
1952 | ;; what it's really supposed to do. | |
1953 | ;; | |
1954 | ;; --gerd 2001-08-10. | |
1955 | ||
1956 | (if (and (not isearch-mode) | |
1957 | (listp main-event) | |
c6431f12 | 1958 | (setq window (posn-window (event-start main-event))) |
4fd017e7 RS |
1959 | (windowp window) |
1960 | (or (> (minibuffer-depth) 0) | |
1961 | (not (window-minibuffer-p window)))) | |
00c42405 | 1962 | (with-current-buffer (window-buffer window) |
0352b205 RS |
1963 | (isearch-done) |
1964 | (isearch-clean-overlays)) | |
1965 | (isearch-done) | |
6b61353c KH |
1966 | (isearch-clean-overlays) |
1967 | (setq prefix-arg arg)))) | |
1968 | (t;; otherwise nil | |
c6431f12 | 1969 | (isearch-process-search-string key key))))) |
8e1cae6d | 1970 | |
8e1cae6d JB |
1971 | (defun isearch-quote-char () |
1972 | "Quote special characters for incremental search." | |
1973 | (interactive) | |
8bc15fa8 | 1974 | (let ((char (read-quoted-char (isearch-message t)))) |
3c75023f | 1975 | ;; Assume character codes 0200 - 0377 stand for characters in some |
c20d35d5 KH |
1976 | ;; single-byte character set, and convert them to Emacs |
1977 | ;; characters. | |
6480c508 | 1978 | (if (and isearch-regexp (= char ?\s)) |
be02a7ed | 1979 | (if (subregexp-context-p isearch-string (length isearch-string)) |
30bb1443 SM |
1980 | (isearch-process-search-string "[ ]" " ") |
1981 | (isearch-process-search-char char)) | |
ab67e8b6 RS |
1982 | (and enable-multibyte-characters |
1983 | (>= char ?\200) | |
1984 | (<= char ?\377) | |
1985 | (setq char (unibyte-char-to-multibyte char))) | |
1986 | (isearch-process-search-char char)))) | |
8e1cae6d | 1987 | |
8e1cae6d | 1988 | (defun isearch-return-char () |
6f2df0f4 | 1989 | "Convert return into newline for incremental search." |
8e1cae6d JB |
1990 | (interactive) |
1991 | (isearch-process-search-char ?\n)) | |
13701709 | 1992 | (make-obsolete 'isearch-return-char 'isearch-printing-char "19.7") |
8e1cae6d | 1993 | |
8e1cae6d | 1994 | (defun isearch-printing-char () |
b68c164d | 1995 | "Add this ordinary printing character to the search string and search." |
8e1cae6d | 1996 | (interactive) |
8989a920 | 1997 | (let ((char last-command-event)) |
45b94eb2 | 1998 | (if (= char ?\S-\ ) |
6480c508 | 1999 | (setq char ?\s)) |
758710cb KH |
2000 | (if current-input-method |
2001 | (isearch-process-search-multibyte-characters char) | |
2002 | (isearch-process-search-char char)))) | |
8e1cae6d | 2003 | |
8e1cae6d | 2004 | (defun isearch-process-search-char (char) |
6f2df0f4 JL |
2005 | ;; * and ? are special in regexps when not preceded by \. |
2006 | ;; } and | are special in regexps when preceded by \. | |
2007 | ;; Nothing special for + because it matches at least once. | |
2008 | (cond | |
2009 | ((memq char '(?* ??)) (isearch-fallback nil)) | |
2010 | ((eq char ?\}) (isearch-fallback t t)) | |
2011 | ((eq char ?|) (isearch-fallback t nil t))) | |
2012 | ||
8e1cae6d | 2013 | ;; Append the char to the search string, update the message and re-search. |
191f025a SM |
2014 | (isearch-process-search-string |
2015 | (char-to-string char) | |
8f3c1d76 | 2016 | (if (>= char ?\200) |
01a6ef79 RS |
2017 | (char-to-string char) |
2018 | (isearch-text-char-description char)))) | |
8e1cae6d JB |
2019 | |
2020 | (defun isearch-process-search-string (string message) | |
2021 | (setq isearch-string (concat isearch-string string) | |
2022 | isearch-message (concat isearch-message message)) | |
2023 | (isearch-search-and-update)) | |
2024 | ||
2025 | \f | |
8e1cae6d JB |
2026 | ;; Search Ring |
2027 | ||
08200510 RS |
2028 | (defun isearch-ring-adjust1 (advance) |
2029 | ;; Helper for isearch-ring-adjust | |
2030 | (let* ((ring (if isearch-regexp regexp-search-ring search-ring)) | |
8e1cae6d JB |
2031 | (length (length ring)) |
2032 | (yank-pointer-name (if isearch-regexp | |
08200510 | 2033 | 'regexp-search-ring-yank-pointer |
8e1cae6d JB |
2034 | 'search-ring-yank-pointer)) |
2035 | (yank-pointer (eval yank-pointer-name))) | |
2036 | (if (zerop length) | |
2037 | () | |
2038 | (set yank-pointer-name | |
2039 | (setq yank-pointer | |
ffbc30b2 PE |
2040 | (mod (+ (or yank-pointer 0) |
2041 | (if advance -1 1)) | |
2042 | length))) | |
a5dcf63f | 2043 | (setq isearch-string (nth yank-pointer ring) |
08200510 RS |
2044 | isearch-message (mapconcat 'isearch-text-char-description |
2045 | isearch-string ""))))) | |
2046 | ||
2047 | (defun isearch-ring-adjust (advance) | |
2048 | ;; Helper for isearch-ring-advance and isearch-ring-retreat | |
08200510 | 2049 | (isearch-ring-adjust1 advance) |
08200510 RS |
2050 | (if search-ring-update |
2051 | (progn | |
2052 | (isearch-search) | |
a71a98cf | 2053 | (isearch-push-state) |
08200510 | 2054 | (isearch-update)) |
a71a98cf JL |
2055 | ;; Otherwise, edit the search string instead. Note that there is |
2056 | ;; no need to push the search state after isearch-edit-string here | |
2057 | ;; since isearch-edit-string already pushes its state | |
2058 | (isearch-edit-string))) | |
8e1cae6d JB |
2059 | |
2060 | (defun isearch-ring-advance () | |
2061 | "Advance to the next search string in the ring." | |
08200510 | 2062 | ;; This could be more general to handle a prefix arg, but who would use it. |
8e1cae6d JB |
2063 | (interactive) |
2064 | (isearch-ring-adjust 'advance)) | |
2065 | ||
2066 | (defun isearch-ring-retreat () | |
2067 | "Retreat to the previous search string in the ring." | |
2068 | (interactive) | |
2069 | (isearch-ring-adjust nil)) | |
2070 | ||
08200510 RS |
2071 | (defun isearch-complete1 () |
2072 | ;; Helper for isearch-complete and isearch-complete-edit | |
2073 | ;; Return t if completion OK, nil if no completion exists. | |
2074 | (let* ((ring (if isearch-regexp regexp-search-ring search-ring)) | |
08200510 | 2075 | (completion-ignore-case case-fold-search) |
c789e608 | 2076 | (completion (try-completion isearch-string ring))) |
08200510 RS |
2077 | (cond |
2078 | ((eq completion t) | |
2079 | ;; isearch-string stays the same | |
2080 | t) | |
2081 | ((or completion ; not nil, must be a string | |
b7852303 | 2082 | (= 0 (length isearch-string))) ; shouldn't have to say this |
08200510 | 2083 | (if (equal completion isearch-string) ;; no extension? |
36bcac3f RS |
2084 | (progn |
2085 | (if completion-auto-help | |
2086 | (with-output-to-temp-buffer "*Isearch completions*" | |
b48ca14f | 2087 | (display-completion-list |
c789e608 | 2088 | (all-completions isearch-string ring)))) |
36bcac3f RS |
2089 | t) |
2090 | (and completion | |
2091 | (setq isearch-string completion)))) | |
08200510 RS |
2092 | (t |
2093 | (message "No completion") ; waits a second if in minibuffer | |
2094 | nil)))) | |
2095 | ||
2096 | (defun isearch-complete () | |
2097 | "Complete the search string from the strings on the search ring. | |
2098 | The completed string is then editable in the minibuffer. | |
2099 | If there is no completion possible, say so and continue searching." | |
2100 | (interactive) | |
2101 | (if (isearch-complete1) | |
3ae4c509 RS |
2102 | (progn (setq isearch-message |
2103 | (mapconcat 'isearch-text-char-description | |
2104 | isearch-string "")) | |
2105 | (isearch-edit-string)) | |
08200510 RS |
2106 | ;; else |
2107 | (sit-for 1) | |
2108 | (isearch-update))) | |
8e1cae6d | 2109 | |
08200510 RS |
2110 | (defun isearch-complete-edit () |
2111 | "Same as `isearch-complete' except in the minibuffer." | |
2112 | (interactive) | |
c789e608 | 2113 | (setq isearch-string (field-string)) |
08200510 | 2114 | (if (isearch-complete1) |
8e1cae6d | 2115 | (progn |
b7b66466 | 2116 | (delete-field) |
08200510 | 2117 | (insert isearch-string)))) |
8e1cae6d JB |
2118 | |
2119 | \f | |
8e1cae6d JB |
2120 | ;; Message string |
2121 | ||
2122 | (defun isearch-message (&optional c-q-hack ellipsis) | |
2123 | ;; Generate and print the message string. | |
2124 | (let ((cursor-in-echo-area ellipsis) | |
d8891294 JL |
2125 | (m isearch-message) |
2126 | (cmds isearch-cmds) | |
2127 | succ-msg) | |
2128 | (when (or (not isearch-success) isearch-error) | |
2129 | ;; Highlight failed part | |
2130 | (while (or (not (isearch-success-state (car cmds))) | |
2131 | (isearch-error-state (car cmds))) | |
2132 | (pop cmds)) | |
2133 | (setq succ-msg (and cmds (isearch-message-state (car cmds))) | |
2134 | m (copy-sequence m)) | |
a71a98cf JL |
2135 | (add-text-properties |
2136 | (if (and (stringp succ-msg) | |
2137 | (< (length succ-msg) (length m)) | |
2138 | (equal succ-msg (substring m 0 (length succ-msg)))) | |
2139 | (length succ-msg) | |
2140 | 0) | |
2141 | (length m) '(face isearch-fail) m) | |
d8891294 JL |
2142 | ;; Highlight failed trailing whitespace |
2143 | (when (string-match " +$" m) | |
2144 | (add-text-properties (match-beginning 0) (match-end 0) | |
2145 | '(face trailing-whitespace) m))) | |
2146 | (setq m (concat | |
2147 | (isearch-message-prefix c-q-hack ellipsis isearch-nonincremental) | |
2148 | m | |
2149 | (isearch-message-suffix c-q-hack ellipsis))) | |
2150 | (if c-q-hack m (let ((message-log-max nil)) (message "%s" m))))) | |
8e1cae6d | 2151 | |
08200510 | 2152 | (defun isearch-message-prefix (&optional c-q-hack ellipsis nonincremental) |
8e1cae6d JB |
2153 | ;; If about to search, and previous search regexp was invalid, |
2154 | ;; check that it still is. If it is valid now, | |
2155 | ;; let the message we display while searching say that it is valid. | |
ba653a53 | 2156 | (and isearch-error ellipsis |
8e1cae6d JB |
2157 | (condition-case () |
2158 | (progn (re-search-forward isearch-string (point) t) | |
ba653a53 | 2159 | (setq isearch-error nil)) |
8e1cae6d JB |
2160 | (error nil))) |
2161 | ;; If currently failing, display no ellipsis. | |
2162 | (or isearch-success (setq ellipsis nil)) | |
2163 | (let ((m (concat (if isearch-success "" "failing ") | |
d85519bb | 2164 | (if isearch-adjusted "pending " "") |
7badea30 | 2165 | (if (and isearch-wrapped |
6a18e4e7 | 2166 | (not isearch-wrap-function) |
7badea30 RS |
2167 | (if isearch-forward |
2168 | (> (point) isearch-opoint) | |
2169 | (< (point) isearch-opoint))) | |
2170 | "over") | |
8e1cae6d | 2171 | (if isearch-wrapped "wrapped ") |
08200510 | 2172 | (if isearch-word "word " "") |
8e1cae6d | 2173 | (if isearch-regexp "regexp " "") |
3c0aa5e6 | 2174 | (if multi-isearch-next-buffer-current-function "multi " "") |
ee9b85a8 | 2175 | (or isearch-message-prefix-add "") |
08200510 | 2176 | (if nonincremental "search" "I-search") |
f46d5091 | 2177 | (if isearch-forward "" " backward") |
5b56d4e4 KH |
2178 | (if current-input-method |
2179 | (concat " [" current-input-method-title "]: ") | |
f46d5091 | 2180 | ": ") |
8e1cae6d | 2181 | ))) |
aec11aff KS |
2182 | (propertize (concat (upcase (substring m 0 1)) (substring m 1)) |
2183 | 'face 'minibuffer-prompt))) | |
8e1cae6d JB |
2184 | |
2185 | (defun isearch-message-suffix (&optional c-q-hack ellipsis) | |
2186 | (concat (if c-q-hack "^Q" "") | |
ba653a53 JL |
2187 | (if isearch-error |
2188 | (concat " [" isearch-error "]") | |
ee9b85a8 JL |
2189 | "") |
2190 | (or isearch-message-suffix-add ""))) | |
8e1cae6d JB |
2191 | |
2192 | \f | |
191f025a SM |
2193 | ;; Searching |
2194 | ||
512bfd85 RS |
2195 | (defvar isearch-search-fun-function nil |
2196 | "Override `isearch-search-fun'. | |
4b65254d | 2197 | This function should return the search function for Isearch to use. |
512bfd85 RS |
2198 | It will call this function with three arguments |
2199 | as if it were `search-forward'.") | |
191f025a SM |
2200 | |
2201 | (defun isearch-search-fun () | |
2202 | "Return the function to use for the search. | |
2203 | Can be changed via `isearch-search-fun-function' for special needs." | |
2204 | (if isearch-search-fun-function | |
2205 | (funcall isearch-search-fun-function) | |
2206 | (cond | |
2207 | (isearch-word | |
b87573f0 JL |
2208 | ;; Use lax versions to not fail at the end of the word while |
2209 | ;; the user adds and removes characters in the search string | |
2210 | ;; (or when using nonincremental word isearch) | |
2211 | (if (or isearch-nonincremental | |
2212 | (eq (length isearch-string) | |
2213 | (length (isearch-string-state (car isearch-cmds))))) | |
2214 | (if isearch-forward 'word-search-forward 'word-search-backward) | |
2215 | (if isearch-forward 'word-search-forward-lax 'word-search-backward-lax))) | |
191f025a SM |
2216 | (isearch-regexp |
2217 | (if isearch-forward 're-search-forward 're-search-backward)) | |
2218 | (t | |
2219 | (if isearch-forward 'search-forward 'search-backward))))) | |
8e1cae6d | 2220 | |
6cf157df | 2221 | (defun isearch-search-string (string bound noerror) |
4b65254d JB |
2222 | "Search for the first occurrence of STRING or its translation. |
2223 | If found, move point to the end of the occurrence, | |
2224 | update the match data, and return point." | |
3be5da9e SM |
2225 | (let* ((func (isearch-search-fun)) |
2226 | (pos1 (save-excursion (funcall func string bound noerror))) | |
2227 | pos2) | |
0d58bedd EZ |
2228 | (when (and |
2229 | ;; Avoid "obsolete" warnings for translation-table-for-input. | |
2230 | (with-no-warnings | |
2231 | (char-table-p translation-table-for-input)) | |
2232 | (multibyte-string-p string) | |
2233 | ;; Minor optimization. | |
2234 | (string-match-p "[^[:ascii:]]" string)) | |
3be5da9e SM |
2235 | (let ((translated |
2236 | (apply 'string | |
2237 | (mapcar (lambda (c) | |
0d58bedd EZ |
2238 | (or |
2239 | ;; Avoid "obsolete" warnings for | |
2240 | ;; translation-table-for-input. | |
2241 | (with-no-warnings | |
2242 | (aref translation-table-for-input c)) | |
2243 | c)) | |
3be5da9e SM |
2244 | string))) |
2245 | match-data) | |
2246 | (when translated | |
2247 | (save-match-data | |
2248 | (save-excursion | |
2249 | (if (setq pos2 (funcall func translated bound noerror)) | |
2250 | (setq match-data (match-data t))))) | |
2251 | (when (and pos2 | |
2252 | (or (not pos1) | |
2253 | (if isearch-forward (< pos2 pos1) (> pos2 pos1)))) | |
2254 | (setq pos1 pos2) | |
2255 | (set-match-data match-data))))) | |
d240f431 JL |
2256 | (when pos1 |
2257 | ;; When using multiple buffers isearch, switch to the new buffer here, | |
2258 | ;; because `save-excursion' above doesn't allow doing it inside funcall. | |
3c0aa5e6 JL |
2259 | (if (and multi-isearch-next-buffer-current-function |
2260 | (buffer-live-p multi-isearch-current-buffer)) | |
2261 | (switch-to-buffer multi-isearch-current-buffer)) | |
3be5da9e SM |
2262 | (goto-char pos1) |
2263 | pos1))) | |
6cf157df | 2264 | |
8e1cae6d JB |
2265 | (defun isearch-search () |
2266 | ;; Do the search with the current search string. | |
ac475d3a JL |
2267 | (if isearch-message-function |
2268 | (funcall isearch-message-function nil t) | |
2269 | (isearch-message nil t)) | |
4453091d | 2270 | (if (and (eq isearch-case-fold-search t) search-upper-case) |
b78559b0 RS |
2271 | (setq isearch-case-fold-search |
2272 | (isearch-no-upper-case-p isearch-string isearch-regexp))) | |
8e1cae6d | 2273 | (condition-case lossage |
5e189f39 | 2274 | (let ((inhibit-point-motion-hooks |
f2fd3261 | 2275 | (and (eq isearch-filter-predicate 'isearch-filter-visible) |
5e189f39 | 2276 | search-invisible)) |
79c7a4fa | 2277 | (inhibit-quit nil) |
86bfaffe | 2278 | (case-fold-search isearch-case-fold-search) |
ab67e8b6 | 2279 | (search-spaces-regexp search-whitespace-regexp) |
86bfaffe | 2280 | (retry t)) |
ba653a53 | 2281 | (setq isearch-error nil) |
86bfaffe RS |
2282 | (while retry |
2283 | (setq isearch-success | |
6cf157df | 2284 | (isearch-search-string isearch-string nil t)) |
2f669fac JL |
2285 | ;; Clear RETRY unless the search predicate says |
2286 | ;; to skip this search hit. | |
5e189f39 | 2287 | (if (or (not isearch-success) |
86bfaffe RS |
2288 | (bobp) (eobp) |
2289 | (= (match-beginning 0) (match-end 0)) | |
2f669fac | 2290 | (funcall isearch-filter-predicate |
5e189f39 | 2291 | (match-beginning 0) (match-end 0))) |
86bfaffe | 2292 | (setq retry nil))) |
99ae9e9f | 2293 | (setq isearch-just-started nil) |
8e1cae6d JB |
2294 | (if isearch-success |
2295 | (setq isearch-other-end | |
2296 | (if isearch-forward (match-beginning 0) (match-end 0))))) | |
2297 | ||
d32696d4 | 2298 | (quit (isearch-unread ?\C-g) |
8e1cae6d JB |
2299 | (setq isearch-success nil)) |
2300 | ||
191f025a | 2301 | (invalid-regexp |
ba653a53 | 2302 | (setq isearch-error (car (cdr lossage))) |
8e1cae6d JB |
2303 | (if (string-match |
2304 | "\\`Premature \\|\\`Unmatched \\|\\`Invalid " | |
ba653a53 JL |
2305 | isearch-error) |
2306 | (setq isearch-error "incomplete input"))) | |
2307 | ||
2308 | (search-failed | |
2309 | (setq isearch-success nil) | |
2310 | (setq isearch-error (nth 2 lossage))) | |
2311 | ||
f1c03125 | 2312 | (error |
c982ab21 | 2313 | ;; stack overflow in regexp search. |
ba653a53 | 2314 | (setq isearch-error (format "%s" lossage)))) |
8e1cae6d JB |
2315 | |
2316 | (if isearch-success | |
2317 | nil | |
2318 | ;; Ding if failed this time after succeeding last time. | |
1a699acf | 2319 | (and (isearch-success-state (car isearch-cmds)) |
8e1cae6d | 2320 | (ding)) |
6a18e4e7 JL |
2321 | (if (functionp (isearch-pop-fun-state (car isearch-cmds))) |
2322 | (funcall (isearch-pop-fun-state (car isearch-cmds)) (car isearch-cmds))) | |
1a699acf | 2323 | (goto-char (isearch-point-state (car isearch-cmds))))) |
8e1cae6d | 2324 | |
0352b205 | 2325 | |
191f025a | 2326 | ;; Called when opening an overlay, and we are still in isearch. |
0352b205 | 2327 | (defun isearch-open-overlay-temporary (ov) |
b48ca14f | 2328 | (if (not (null (overlay-get ov 'isearch-open-invisible-temporary))) |
0352b205 RS |
2329 | ;; Some modes would want to open the overlays temporary during |
2330 | ;; isearch in their own way, they should set the | |
2331 | ;; `isearch-open-invisible-temporary' to a function doing this. | |
2332 | (funcall (overlay-get ov 'isearch-open-invisible-temporary) ov nil) | |
2333 | ;; Store the values for the `invisible' and `intangible' | |
2334 | ;; properties, and then set them to nil. This way the text hidden | |
2335 | ;; by this overlay becomes visible. | |
2336 | ||
380866a2 | 2337 | ;; Do we really need to set the `intangible' property to t? Can we |
0352b205 RS |
2338 | ;; have the point inside an overlay with an `intangible' property? |
2339 | ;; In 19.34 this does not exist so I cannot test it. | |
2340 | (overlay-put ov 'isearch-invisible (overlay-get ov 'invisible)) | |
2341 | (overlay-put ov 'isearch-intangible (overlay-get ov 'intangible)) | |
2342 | (overlay-put ov 'invisible nil) | |
2343 | (overlay-put ov 'intangible nil))) | |
2344 | ||
2345 | ||
191f025a SM |
2346 | ;; This is called at the end of isearch. It will open the overlays |
2347 | ;; that contain the latest match. Obviously in case of a C-g the | |
2348 | ;; point returns to the original location which surely is not contain | |
2349 | ;; in any of these overlays, se we are safe in this case too. | |
0352b205 | 2350 | (defun isearch-open-necessary-overlays (ov) |
191f025a | 2351 | (let ((inside-overlay (and (> (point) (overlay-start ov)) |
0352b205 RS |
2352 | (< (point) (overlay-end ov)))) |
2353 | ;; If this exists it means that the overlay was opened using | |
2354 | ;; this function, not by us tweaking the overlay properties. | |
2355 | (fct-temp (overlay-get ov 'isearch-open-invisible-temporary))) | |
2356 | (when (or inside-overlay (not fct-temp)) | |
2357 | ;; restore the values for the `invisible' and `intangible' | |
2358 | ;; properties | |
2359 | (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible)) | |
2360 | (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible)) | |
2361 | (overlay-put ov 'isearch-invisible nil) | |
2362 | (overlay-put ov 'isearch-intangible nil)) | |
2363 | (if inside-overlay | |
2364 | (funcall (overlay-get ov 'isearch-open-invisible) ov) | |
2365 | (if fct-temp | |
2366 | (funcall fct-temp ov t))))) | |
2367 | ||
191f025a SM |
2368 | ;; This is called when exiting isearch. It closes the temporary |
2369 | ;; opened overlays, except the ones that contain the latest match. | |
0352b205 RS |
2370 | (defun isearch-clean-overlays () |
2371 | (when isearch-opened-overlays | |
02b2f510 | 2372 | (mapc 'isearch-open-necessary-overlays isearch-opened-overlays) |
0352b205 RS |
2373 | (setq isearch-opened-overlays nil))) |
2374 | ||
fc0eccfc GM |
2375 | |
2376 | (defun isearch-intersects-p (start0 end0 start1 end1) | |
2377 | "Return t if regions START0..END0 and START1..END1 intersect." | |
eaa493df GM |
2378 | (or (and (>= start0 start1) (< start0 end1)) |
2379 | (and (> end0 start1) (<= end0 end1)) | |
2380 | (and (>= start1 start0) (< start1 end0)) | |
2381 | (and (> end1 start0) (<= end1 end0)))) | |
fc0eccfc GM |
2382 | |
2383 | ||
191f025a SM |
2384 | ;; Verify if the current match is outside of each element of |
2385 | ;; `isearch-opened-overlays', if so close that overlay. | |
fc0eccfc GM |
2386 | |
2387 | (defun isearch-close-unnecessary-overlays (begin end) | |
2388 | (let ((overlays isearch-opened-overlays)) | |
0352b205 | 2389 | (setq isearch-opened-overlays nil) |
fc0eccfc GM |
2390 | (dolist (ov overlays) |
2391 | (if (isearch-intersects-p begin end (overlay-start ov) (overlay-end ov)) | |
2392 | (push ov isearch-opened-overlays) | |
2393 | (let ((fct-temp (overlay-get ov 'isearch-open-invisible-temporary))) | |
2394 | (if fct-temp | |
2395 | ;; If this exists it means that the overlay was opened | |
2396 | ;; using this function, not by us tweaking the overlay | |
2397 | ;; properties. | |
2398 | (funcall fct-temp ov t) | |
2399 | (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible)) | |
2400 | (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible)) | |
2401 | (overlay-put ov 'isearch-invisible nil) | |
2402 | (overlay-put ov 'isearch-intangible nil))))))) | |
2403 | ||
0352b205 | 2404 | |
86bfaffe | 2405 | (defun isearch-range-invisible (beg end) |
79c7a4fa | 2406 | "Return t if all the text from BEG to END is invisible." |
cd59ea72 SM |
2407 | (when (/= beg end) |
2408 | ;; Check that invisibility runs up to END. | |
2409 | (save-excursion | |
2410 | (goto-char beg) | |
2411 | (let (;; can-be-opened keeps track if we can open some overlays. | |
2412 | (can-be-opened (eq search-invisible 'open)) | |
2413 | ;; the list of overlays that could be opened | |
2414 | (crt-overlays nil)) | |
2415 | (when (and can-be-opened isearch-hide-immediately) | |
2416 | (isearch-close-unnecessary-overlays beg end)) | |
2417 | ;; If the following character is currently invisible, | |
2418 | ;; skip all characters with that same `invisible' property value. | |
2419 | ;; Do that over and over. | |
2420 | (while (and (< (point) end) | |
2421 | (let ((prop | |
2422 | (get-char-property (point) 'invisible))) | |
2423 | (if (eq buffer-invisibility-spec t) | |
2424 | prop | |
2425 | (or (memq prop buffer-invisibility-spec) | |
2426 | (assq prop buffer-invisibility-spec))))) | |
2427 | (if (get-text-property (point) 'invisible) | |
2428 | (progn | |
2429 | (goto-char (next-single-property-change (point) 'invisible | |
2430 | nil end)) | |
2431 | ;; if text is hidden by an `invisible' text property | |
2432 | ;; we cannot open it at all. | |
2433 | (setq can-be-opened nil)) | |
2434 | (when can-be-opened | |
2435 | (let ((overlays (overlays-at (point))) | |
2436 | ov-list | |
2437 | o | |
2438 | invis-prop) | |
2439 | (while overlays | |
2440 | (setq o (car overlays) | |
2441 | invis-prop (overlay-get o 'invisible)) | |
2442 | (if (if (eq buffer-invisibility-spec t) | |
2443 | invis-prop | |
2444 | (or (memq invis-prop buffer-invisibility-spec) | |
2445 | (assq invis-prop buffer-invisibility-spec))) | |
2446 | (if (overlay-get o 'isearch-open-invisible) | |
2447 | (setq ov-list (cons o ov-list)) | |
2448 | ;; We found one overlay that cannot be | |
2449 | ;; opened, that means the whole chunk | |
2450 | ;; cannot be opened. | |
2451 | (setq can-be-opened nil))) | |
2452 | (setq overlays (cdr overlays))) | |
2453 | (if can-be-opened | |
2454 | ;; It makes sense to append to the open | |
2455 | ;; overlays list only if we know that this is | |
2456 | ;; t. | |
2457 | (setq crt-overlays (append ov-list crt-overlays))))) | |
2458 | (goto-char (next-overlay-change (point))))) | |
2459 | ;; See if invisibility reaches up thru END. | |
2460 | (if (>= (point) end) | |
2461 | (if (and can-be-opened (consp crt-overlays)) | |
2462 | (progn | |
2463 | (setq isearch-opened-overlays | |
2464 | (append isearch-opened-overlays crt-overlays)) | |
2465 | (mapc 'isearch-open-overlay-temporary crt-overlays) | |
2466 | nil) | |
2467 | (setq isearch-hidden t))))))) | |
08200510 | 2468 | |
f2fd3261 JL |
2469 | (defun isearch-filter-visible (beg end) |
2470 | "Test whether the current search hit is visible at least partially. | |
2471 | Return non-nil if the text from BEG to END is visible to Isearch as | |
2472 | determined by `isearch-range-invisible' unless invisible text can be | |
2473 | searched too when `search-invisible' is t." | |
5e189f39 JL |
2474 | (or (eq search-invisible t) |
2475 | (not (isearch-range-invisible beg end)))) | |
2476 | ||
08200510 | 2477 | \f |
191f025a | 2478 | ;; General utilities |
08200510 | 2479 | |
b78559b0 RS |
2480 | (defun isearch-no-upper-case-p (string regexp-flag) |
2481 | "Return t if there are no upper case chars in STRING. | |
b7852303 | 2482 | If REGEXP-FLAG is non-nil, disregard letters preceded by `\\' (but not `\\\\') |
b78559b0 | 2483 | since they have special meaning in a regexp." |
b48ca14f | 2484 | (let (quote-flag (i 0) (len (length string)) found) |
59057198 RS |
2485 | (while (and (not found) (< i len)) |
2486 | (let ((char (aref string i))) | |
2487 | (if (and regexp-flag (eq char ?\\)) | |
2488 | (setq quote-flag (not quote-flag)) | |
2489 | (if (and (not quote-flag) (not (eq char (downcase char)))) | |
f4be3f89 RS |
2490 | (setq found t)) |
2491 | (setq quote-flag nil))) | |
59057198 | 2492 | (setq i (1+ i))) |
c5f847b6 SM |
2493 | (not (or found |
2494 | ;; Even if there's no uppercase char, we want to detect the use | |
2495 | ;; of [:upper:] or [:lower:] char-class, which indicates | |
2496 | ;; clearly that the user cares about case distinction. | |
2497 | (and regexp-flag (string-match "\\[:\\(upp\\|low\\)er:]" string) | |
2498 | (condition-case err | |
2499 | (progn | |
2500 | (string-match (substring string 0 (match-beginning 0)) | |
2501 | "") | |
2502 | nil) | |
2503 | (invalid-regexp | |
2504 | (equal "Unmatched [ or [^" (cadr err))))))))) | |
08200510 | 2505 | |
b78559b0 | 2506 | ;; Portability functions to support various Emacs versions. |
8e1cae6d | 2507 | |
08200510 | 2508 | (defun isearch-text-char-description (c) |
14373677 | 2509 | (cond |
cf5e4199 JL |
2510 | ((< c ?\s) (propertize (format "^%c" (+ c 64)) 'face 'escape-glyph)) |
2511 | ((= c ?\^?) (propertize "^?" 'face 'escape-glyph)) | |
14373677 | 2512 | (t (char-to-string c)))) |
08200510 | 2513 | |
bd1bd125 | 2514 | ;; General function to unread characters or events. |
99ae9e9f | 2515 | ;; Also insert them in a keyboard macro being defined. |
8f90f594 | 2516 | (defun isearch-unread (&rest char-or-events) |
02b2f510 | 2517 | (mapc 'store-kbd-macro-event char-or-events) |
bd1bd125 RS |
2518 | (setq unread-command-events |
2519 | (append char-or-events unread-command-events))) | |
08200510 | 2520 | |
44336afb | 2521 | \f |
bca92193 JL |
2522 | ;; Highlighting |
2523 | ||
2524 | (defvar isearch-overlay nil) | |
2525 | ||
2526 | (defun isearch-highlight (beg end) | |
704d3ae7 JL |
2527 | (if search-highlight |
2528 | (if isearch-overlay | |
2529 | ;; Overlay already exists, just move it. | |
2530 | (move-overlay isearch-overlay beg end (current-buffer)) | |
2531 | ;; Overlay doesn't exist, create it. | |
2532 | (setq isearch-overlay (make-overlay beg end)) | |
2533 | ;; 1001 is higher than lazy's 1000 and ediff's 100+ | |
2534 | (overlay-put isearch-overlay 'priority 1001) | |
2535 | (overlay-put isearch-overlay 'face isearch)))) | |
bca92193 JL |
2536 | |
2537 | (defun isearch-dehighlight () | |
2538 | (when isearch-overlay | |
2539 | (delete-overlay isearch-overlay))) | |
2540 | \f | |
191f025a SM |
2541 | ;; isearch-lazy-highlight feature |
2542 | ;; by Bob Glickstein <http://www.zanshin.com/~bobg/> | |
2543 | ||
2544 | ;; When active, *every* match for the current search string is | |
2545 | ;; highlighted: the current one using the normal isearch match color | |
e3cde0c7 | 2546 | ;; and all the others using `isearch-lazy-highlight'. The extra |
191f025a SM |
2547 | ;; highlighting makes it easier to anticipate where the cursor will |
2548 | ;; land each time you press C-s or C-r to repeat a pending search. | |
2549 | ;; Highlighting of these additional matches happens in a deferred | |
2550 | ;; fashion using "idle timers," so the cycles needed do not rob | |
2551 | ;; isearch of its usual snappy response. | |
2552 | ||
2553 | ;; IMPLEMENTATION NOTE: This depends on some isearch internals. | |
2554 | ;; Specifically: | |
2555 | ;; - `isearch-update' is expected to be called (at least) every time | |
2556 | ;; the search string or window-start changes; | |
2557 | ;; - `isearch-string' is expected to contain the current search | |
2558 | ;; string as entered by the user; | |
2559 | ;; - the type of the current search is expected to be given by | |
2560 | ;; `isearch-word' and `isearch-regexp'; | |
2561 | ;; - the direction of the current search is expected to be given by | |
2562 | ;; `isearch-forward'; | |
ba653a53 | 2563 | ;; - the variable `isearch-error' is expected to be true |
4837b516 | 2564 | ;; only if `isearch-string' is an invalid regexp. |
44336afb | 2565 | |
44336afb | 2566 | (defvar isearch-lazy-highlight-overlays nil) |
c982ab21 | 2567 | (defvar isearch-lazy-highlight-wrapped nil) |
f9114cec RS |
2568 | (defvar isearch-lazy-highlight-start-limit nil) |
2569 | (defvar isearch-lazy-highlight-end-limit nil) | |
44336afb GM |
2570 | (defvar isearch-lazy-highlight-start nil) |
2571 | (defvar isearch-lazy-highlight-end nil) | |
2572 | (defvar isearch-lazy-highlight-timer nil) | |
2573 | (defvar isearch-lazy-highlight-last-string nil) | |
c982ab21 GM |
2574 | (defvar isearch-lazy-highlight-window nil) |
2575 | (defvar isearch-lazy-highlight-window-start nil) | |
6b61353c | 2576 | (defvar isearch-lazy-highlight-window-end nil) |
46daf6c7 GM |
2577 | (defvar isearch-lazy-highlight-case-fold-search nil) |
2578 | (defvar isearch-lazy-highlight-regexp nil) | |
9a193944 | 2579 | (defvar isearch-lazy-highlight-space-regexp nil) |
44336afb | 2580 | |
46fe9018 | 2581 | (defun lazy-highlight-cleanup (&optional force) |
c982ab21 | 2582 | "Stop lazy highlighting and remove extra highlighting from current buffer. |
c1bc6bb6 | 2583 | FORCE non-nil means do it whether or not `lazy-highlight-cleanup' |
c982ab21 | 2584 | is nil. This function is called when exiting an incremental search if |
c1bc6bb6 | 2585 | `lazy-highlight-cleanup' is non-nil." |
44336afb | 2586 | (interactive '(t)) |
c1bc6bb6 | 2587 | (if (or force lazy-highlight-cleanup) |
c982ab21 GM |
2588 | (while isearch-lazy-highlight-overlays |
2589 | (delete-overlay (car isearch-lazy-highlight-overlays)) | |
2590 | (setq isearch-lazy-highlight-overlays | |
2591 | (cdr isearch-lazy-highlight-overlays)))) | |
2592 | (when isearch-lazy-highlight-timer | |
2593 | (cancel-timer isearch-lazy-highlight-timer) | |
2594 | (setq isearch-lazy-highlight-timer nil))) | |
44336afb | 2595 | |
6480c508 JB |
2596 | (define-obsolete-function-alias 'isearch-lazy-highlight-cleanup |
2597 | 'lazy-highlight-cleanup | |
2598 | "22.1") | |
46fe9018 | 2599 | |
d9dd1f33 | 2600 | (defun isearch-lazy-highlight-new-loop (&optional beg end) |
c1bc6bb6 | 2601 | "Cleanup any previous `lazy-highlight' loop and begin a new one. |
f9114cec RS |
2602 | BEG and END specify the bounds within which highlighting should occur. |
2603 | This is called when `isearch-update' is invoked (which can cause the | |
2604 | search string to change or the window to scroll). It is also used | |
2605 | by other Emacs features." | |
da79720c | 2606 | (when (and (null executing-kbd-macro) |
c982ab21 GM |
2607 | (sit-for 0) ;make sure (window-start) is credible |
2608 | (or (not (equal isearch-string | |
2609 | isearch-lazy-highlight-last-string)) | |
2610 | (not (eq (selected-window) | |
2611 | isearch-lazy-highlight-window)) | |
46daf6c7 GM |
2612 | (not (eq isearch-lazy-highlight-case-fold-search |
2613 | isearch-case-fold-search)) | |
2614 | (not (eq isearch-lazy-highlight-regexp | |
2615 | isearch-regexp)) | |
c982ab21 | 2616 | (not (= (window-start) |
6b61353c KH |
2617 | isearch-lazy-highlight-window-start)) |
2618 | (not (= (window-end) ; Window may have been split/joined. | |
2619 | isearch-lazy-highlight-window-end)))) | |
c982ab21 | 2620 | ;; something important did indeed change |
46fe9018 | 2621 | (lazy-highlight-cleanup t) ;kill old loop & remove overlays |
ba653a53 | 2622 | (when (not isearch-error) |
f9114cec RS |
2623 | (setq isearch-lazy-highlight-start-limit beg |
2624 | isearch-lazy-highlight-end-limit end) | |
c982ab21 GM |
2625 | (setq isearch-lazy-highlight-window (selected-window) |
2626 | isearch-lazy-highlight-window-start (window-start) | |
6b61353c | 2627 | isearch-lazy-highlight-window-end (window-end) |
c982ab21 GM |
2628 | isearch-lazy-highlight-start (point) |
2629 | isearch-lazy-highlight-end (point) | |
2630 | isearch-lazy-highlight-last-string isearch-string | |
46daf6c7 GM |
2631 | isearch-lazy-highlight-case-fold-search isearch-case-fold-search |
2632 | isearch-lazy-highlight-regexp isearch-regexp | |
9a193944 CY |
2633 | isearch-lazy-highlight-wrapped nil |
2634 | isearch-lazy-highlight-space-regexp search-whitespace-regexp) | |
5f3a57c9 RS |
2635 | (unless (equal isearch-string "") |
2636 | (setq isearch-lazy-highlight-timer | |
c1bc6bb6 | 2637 | (run-with-idle-timer lazy-highlight-initial-delay nil |
5f3a57c9 | 2638 | 'isearch-lazy-highlight-update)))))) |
c982ab21 GM |
2639 | |
2640 | (defun isearch-lazy-highlight-search () | |
2641 | "Search ahead for the next or previous match, for lazy highlighting. | |
4b65254d | 2642 | Attempt to do the search exactly the way the pending Isearch would." |
83659220 JL |
2643 | (condition-case nil |
2644 | (let ((case-fold-search isearch-lazy-highlight-case-fold-search) | |
2645 | (isearch-regexp isearch-lazy-highlight-regexp) | |
2646 | (search-spaces-regexp isearch-lazy-highlight-space-regexp) | |
2647 | (search-invisible nil) ; don't match invisible text | |
2648 | (retry t) | |
2649 | (success nil) | |
2650 | (bound (if isearch-forward | |
2651 | (min (or isearch-lazy-highlight-end-limit (point-max)) | |
2652 | (if isearch-lazy-highlight-wrapped | |
2653 | isearch-lazy-highlight-start | |
2654 | (window-end))) | |
2655 | (max (or isearch-lazy-highlight-start-limit (point-min)) | |
ba653a53 | 2656 | (if isearch-lazy-highlight-wrapped |
83659220 JL |
2657 | isearch-lazy-highlight-end |
2658 | (window-start)))))) | |
2f669fac | 2659 | ;; Use a loop like in `isearch-search'. |
83659220 JL |
2660 | (while retry |
2661 | (setq success (isearch-search-string | |
2662 | isearch-lazy-highlight-last-string bound t)) | |
2f669fac JL |
2663 | ;; Clear RETRY unless the search predicate says |
2664 | ;; to skip this search hit. | |
83659220 | 2665 | (if (or (not success) |
2f669fac | 2666 | (funcall isearch-filter-predicate |
83659220 JL |
2667 | (match-beginning 0) (match-end 0))) |
2668 | (setq retry nil))) | |
2669 | success) | |
2670 | (error nil))) | |
44336afb GM |
2671 | |
2672 | (defun isearch-lazy-highlight-update () | |
c982ab21 | 2673 | "Update highlighting of other matches for current search." |
c1bc6bb6 | 2674 | (let ((max lazy-highlight-max-at-a-time) |
c982ab21 GM |
2675 | (looping t) |
2676 | nomore) | |
6ee8e621 JL |
2677 | (with-local-quit |
2678 | (save-selected-window | |
2679 | (if (and (window-live-p isearch-lazy-highlight-window) | |
2680 | (not (eq (selected-window) isearch-lazy-highlight-window))) | |
2681 | (select-window isearch-lazy-highlight-window)) | |
2682 | (save-excursion | |
2683 | (save-match-data | |
2684 | (goto-char (if isearch-forward | |
2685 | isearch-lazy-highlight-end | |
2686 | isearch-lazy-highlight-start)) | |
2687 | (while looping | |
2688 | (let ((found (isearch-lazy-highlight-search))) | |
2689 | (when max | |
2690 | (setq max (1- max)) | |
2691 | (if (<= max 0) | |
2692 | (setq looping nil))) | |
2693 | (if found | |
2694 | (let ((mb (match-beginning 0)) | |
2695 | (me (match-end 0))) | |
2696 | (if (= mb me) ;zero-length match | |
2697 | (if isearch-forward | |
2698 | (if (= mb (if isearch-lazy-highlight-wrapped | |
2699 | isearch-lazy-highlight-start | |
2700 | (window-end))) | |
2701 | (setq found nil) | |
2702 | (forward-char 1)) | |
2703 | (if (= mb (if isearch-lazy-highlight-wrapped | |
2704 | isearch-lazy-highlight-end | |
2705 | (window-start))) | |
2706 | (setq found nil) | |
2707 | (forward-char -1))) | |
2708 | ||
2709 | ;; non-zero-length match | |
2710 | (let ((ov (make-overlay mb me))) | |
2711 | (push ov isearch-lazy-highlight-overlays) | |
704d3ae7 JL |
2712 | ;; 1000 is higher than ediff's 100+, |
2713 | ;; but lower than isearch main overlay's 1001 | |
2714 | (overlay-put ov 'priority 1000) | |
46fe9018 | 2715 | (overlay-put ov 'face lazy-highlight-face) |
6ee8e621 JL |
2716 | (overlay-put ov 'window (selected-window)))) |
2717 | (if isearch-forward | |
2718 | (setq isearch-lazy-highlight-end (point)) | |
2719 | (setq isearch-lazy-highlight-start (point))))) | |
2720 | ||
2721 | ;; not found or zero-length match at the search bound | |
2722 | (if (not found) | |
2723 | (if isearch-lazy-highlight-wrapped | |
2724 | (setq looping nil | |
2725 | nomore t) | |
2726 | (setq isearch-lazy-highlight-wrapped t) | |
5ee5cd10 | 2727 | (if isearch-forward |
6ee8e621 JL |
2728 | (progn |
2729 | (setq isearch-lazy-highlight-end (window-start)) | |
f9114cec RS |
2730 | (goto-char (max (or isearch-lazy-highlight-start-limit (point-min)) |
2731 | (window-start)))) | |
6ee8e621 | 2732 | (setq isearch-lazy-highlight-start (window-end)) |
f9114cec RS |
2733 | (goto-char (min (or isearch-lazy-highlight-end-limit (point-max)) |
2734 | (window-end)))))))) | |
6ee8e621 JL |
2735 | (unless nomore |
2736 | (setq isearch-lazy-highlight-timer | |
2c987fc2 | 2737 | (run-at-time lazy-highlight-interval nil |
6ee8e621 | 2738 | 'isearch-lazy-highlight-update))))))))) |
44336afb | 2739 | |
72a69d7f | 2740 | (defun isearch-resume (string regexp word forward message case-fold) |
c40a4de1 | 2741 | "Resume an incremental search. |
72a69d7f | 2742 | STRING is the string or regexp searched for. |
c40a4de1 GM |
2743 | REGEXP non-nil means the resumed search was a regexp search. |
2744 | WORD non-nil means resume a word search. | |
2745 | FORWARD non-nil means resume a forward search. | |
2746 | MESSAGE is the echo-area message recorded for the search resumed. | |
2747 | CASE-FOLD non-nil means the search was case-insensitive." | |
2748 | (isearch-mode forward regexp nil nil word) | |
72a69d7f | 2749 | (setq isearch-string string |
c40a4de1 GM |
2750 | isearch-message message |
2751 | isearch-case-fold-search case-fold) | |
72a69d7f JL |
2752 | (isearch-search) |
2753 | (isearch-update)) | |
191f025a | 2754 | |
81e898ea | 2755 | ;; arch-tag: 74850515-f7d8-43a6-8a2c-ca90a4c1e675 |
3b1e4dd1 | 2756 | ;;; isearch.el ends here |