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55535639 | 1 | ;;; isearch.el --- incremental search minor mode |
3b1e4dd1 | 2 | |
81e898ea SM |
3 | ;; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1999, |
4 | ;; 2000, 2001, 2003, 2004 Free Software Foundation, Inc. | |
3a801d0c | 5 | |
3b1e4dd1 | 6 | ;; Author: Daniel LaLiberte <liberte@cs.uiuc.edu> |
0f09b616 | 7 | ;; Maintainer: FSF |
117132a6 | 8 | ;; Keywords: matching |
8e1cae6d | 9 | |
54d2ecd3 | 10 | ;; This file is part of GNU Emacs. |
8e1cae6d | 11 | |
59243403 RS |
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
16 | ||
8e1cae6d | 17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
59243403 RS |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
8e1cae6d | 26 | |
3b1e4dd1 ER |
27 | ;;; Commentary: |
28 | ||
8e1cae6d JB |
29 | ;; Instructions |
30 | ||
08200510 RS |
31 | ;; For programmed use of isearch-mode, e.g. calling (isearch-forward), |
32 | ;; isearch-mode behaves modally and does not return until the search | |
117132a6 | 33 | ;; is completed. It uses a recursive-edit to behave this way. |
08200510 | 34 | |
8e1cae6d | 35 | ;; The key bindings active within isearch-mode are defined below in |
08200510 RS |
36 | ;; `isearch-mode-map' which is given bindings close to the default |
37 | ;; characters of the original isearch.el. With `isearch-mode', | |
38 | ;; however, you can bind multi-character keys and it should be easier | |
39 | ;; to add new commands. One bug though: keys with meta-prefix cannot | |
40 | ;; be longer than two chars. Also see minibuffer-local-isearch-map | |
41 | ;; for bindings active during `isearch-edit-string'. | |
42 | ||
117132a6 DL |
43 | ;; isearch-mode should work even if you switch windows with the mouse, |
44 | ;; in which case isearch-mode is terminated automatically before the | |
45 | ;; switch. | |
08200510 RS |
46 | |
47 | ;; The search ring and completion commands automatically put you in | |
48 | ;; the minibuffer to edit the string. This gives you a chance to | |
49 | ;; modify the search string before executing the search. There are | |
50 | ;; three commands to terminate the editing: C-s and C-r exit the | |
51 | ;; minibuffer and search forward and reverse respectively, while C-m | |
52 | ;; exits and does a nonincremental search. | |
53 | ||
54 | ;; Exiting immediately from isearch uses isearch-edit-string instead | |
55 | ;; of nonincremental-search, if search-nonincremental-instead is non-nil. | |
56 | ;; The name of this option should probably be changed if we decide to | |
57 | ;; keep the behavior. No point in forcing nonincremental search until | |
58 | ;; the last possible moment. | |
59 | ||
60 | ;; TODO | |
eb8c3be9 | 61 | ;; - Integrate the emacs 19 generalized command history. |
08200510 | 62 | ;; - Hooks and options for failed search. |
282d89c0 | 63 | |
3b1e4dd1 ER |
64 | ;;; Change Log: |
65 | ||
b578f267 EN |
66 | ;; Changes before those recorded in ChangeLog: |
67 | ||
68 | ;; Revision 1.4 92/09/14 16:26:02 liberte | |
69 | ;; Added prefix args to isearch-forward, etc. to switch between | |
70 | ;; string and regular expression searching. | |
71 | ;; Added some support for lemacs. | |
72 | ;; Added general isearch-highlight option - but only for lemacs so far. | |
73 | ;; Added support for frame switching in emacs 19. | |
74 | ;; Added word search option to isearch-edit-string. | |
75 | ;; Renamed isearch-quit to isearch-abort. | |
76 | ;; Numerous changes to comments and doc strings. | |
b48ca14f | 77 | ;; |
b578f267 EN |
78 | ;; Revision 1.3 92/06/29 13:10:08 liberte |
79 | ;; Moved modal isearch-mode handling into isearch-mode. | |
80 | ;; Got rid of buffer-local isearch variables. | |
81 | ;; isearch-edit-string used by ring adjustments, completion, and | |
82 | ;; nonincremental searching. C-s and C-r are additional exit commands. | |
83 | ;; Renamed all regex to regexp. | |
84 | ;; Got rid of found-start and found-point globals. | |
85 | ;; Generalized handling of upper-case chars. | |
86 | ||
87 | ;; Revision 1.2 92/05/27 11:33:57 liberte | |
88 | ;; Emacs version 19 has a search ring, which is supported here. | |
89 | ;; Other fixes found in the version 19 isearch are included here. | |
90 | ;; | |
91 | ;; Also see variables search-caps-disable-folding, | |
92 | ;; search-nonincremental-instead, search-whitespace-regexp, and | |
93 | ;; commands isearch-toggle-regexp, isearch-edit-string. | |
94 | ;; | |
95 | ;; semi-modal isearching is supported. | |
96 | ||
97 | ;; Changes for 1.1 | |
98 | ;; 3/18/92 Fixed invalid-regexp. | |
99 | ;; 3/18/92 Fixed yanking in regexps. | |
282d89c0 | 100 | |
3b1e4dd1 | 101 | ;;; Code: |
08200510 RS |
102 | |
103 | \f | |
191f025a | 104 | ;; Some additional options and constants. |
08200510 | 105 | |
9c1db929 RS |
106 | (defgroup isearch nil |
107 | "Incremental search minor mode." | |
117132a6 DL |
108 | :link '(emacs-commentary-link "isearch") |
109 | :link '(custom-manual "(emacs)Incremental Search") | |
9c1db929 RS |
110 | :prefix "isearch-" |
111 | :prefix "search-" | |
112 | :group 'matching) | |
fdf5afa4 | 113 | |
9c1db929 RS |
114 | |
115 | (defcustom search-exit-option t | |
116 | "*Non-nil means random control characters terminate incremental search." | |
117 | :type 'boolean | |
118 | :group 'isearch) | |
119 | ||
120 | (defcustom search-slow-window-lines 1 | |
fdf5afa4 RS |
121 | "*Number of lines in slow search display windows. |
122 | These are the short windows used during incremental search on slow terminals. | |
123 | Negative means put the slow search window at the top (normally it's at bottom) | |
9c1db929 RS |
124 | and the value is minus the number of lines." |
125 | :type 'integer | |
126 | :group 'isearch) | |
fdf5afa4 | 127 | |
9c1db929 | 128 | (defcustom search-slow-speed 1200 |
fdf5afa4 RS |
129 | "*Highest terminal speed at which to use \"slow\" style incremental search. |
130 | This is the style where a one-line window is created to show the line | |
9c1db929 RS |
131 | that the search has reached." |
132 | :type 'integer | |
133 | :group 'isearch) | |
8e1cae6d | 134 | |
9c1db929 | 135 | (defcustom search-upper-case 'not-yanks |
8e1cae6d | 136 | "*If non-nil, upper case chars disable case fold searching. |
08200510 RS |
137 | That is, upper and lower case chars must match exactly. |
138 | This applies no matter where the chars come from, but does not | |
fdf5afa4 | 139 | apply to chars in regexps that are prefixed with `\\'. |
9c1db929 RS |
140 | If this value is `not-yanks', yanked text is always downcased." |
141 | :type '(choice (const :tag "off" nil) | |
142 | (const not-yanks) | |
5786b3ed | 143 | (other :tag "on" t)) |
9c1db929 | 144 | :group 'isearch) |
8e1cae6d | 145 | |
9c1db929 | 146 | (defcustom search-nonincremental-instead t |
8e1cae6d | 147 | "*If non-nil, do a nonincremental search instead if exiting immediately. |
08200510 | 148 | Actually, `isearch-edit-string' is called to let you enter the search |
9c1db929 RS |
149 | string, and RET terminates editing and does a nonincremental search." |
150 | :type 'boolean | |
151 | :group 'isearch) | |
8e1cae6d | 152 | |
7f8e0f51 | 153 | (defcustom search-whitespace-regexp "\\(?:\\s-+\\)" |
8e1cae6d | 154 | "*If non-nil, regular expression to match a sequence of whitespace chars. |
e2b992cb | 155 | This applies to regular expression incremental search. |
dcb6bf2b RS |
156 | You might want to use something like \"[ \\t\\r\\n]+\" instead. |
157 | In the Customization buffer, that is `[' followed by a space, | |
158 | a tab, a carriage return (control-M), a newline, and `]+'." | |
9c1db929 RS |
159 | :type 'regexp |
160 | :group 'isearch) | |
8e1cae6d | 161 | |
30178dde | 162 | (defcustom search-highlight t |
9c1db929 RS |
163 | "*Non-nil means incremental search highlights the current match." |
164 | :type 'boolean | |
165 | :group 'isearch) | |
08200510 | 166 | |
0352b205 RS |
167 | (defcustom search-invisible 'open |
168 | "If t incremental search can match hidden text. | |
169 | nil means don't match invisible text. | |
170 | If the value is `open', if the text matched is made invisible by | |
171 | an overlay having an `invisible' property and that overlay has a property | |
172 | `isearch-open-invisible', then incremental search will show the contents. | |
cd59ea72 SM |
173 | \(This applies when using `outline.el' and `hideshow.el'.) |
174 | See also `reveal-mode' if you want overlays to automatically be opened | |
175 | whenever point is in one of them." | |
0352b205 RS |
176 | :type '(choice (const :tag "Match hidden text" t) |
177 | (const :tag "Open overlays" open) | |
79c7a4fa | 178 | (const :tag "Don't match hidden text" nil)) |
0352b205 RS |
179 | :group 'isearch) |
180 | ||
181 | (defcustom isearch-hide-immediately t | |
68c18d6d RS |
182 | "If non-nil, re-hide an invisible match right away. |
183 | This variable makes a difference when `search-invisible' is set to `open'. | |
184 | It means that after search makes some invisible text visible | |
185 | to show the match, it makes the text invisible again when the match moves. | |
b48ca14f JB |
186 | Ordinarily the text becomes invisible again at the end of the search." |
187 | :type 'boolean | |
0352b205 | 188 | :group 'isearch) |
86bfaffe | 189 | |
6848c9f1 KS |
190 | (defcustom isearch-resume-enabled t |
191 | "*If non-nil, `isearch-resume' commands are added to the command history." | |
192 | :type 'boolean | |
193 | :group 'isearch) | |
194 | ||
08200510 RS |
195 | (defvar isearch-mode-hook nil |
196 | "Function(s) to call after starting up an incremental search.") | |
197 | ||
198 | (defvar isearch-mode-end-hook nil | |
199 | "Function(s) to call after terminating an incremental search.") | |
200 | ||
191f025a | 201 | ;; Search ring. |
8e1cae6d JB |
202 | |
203 | (defvar search-ring nil | |
204 | "List of search string sequences.") | |
08200510 | 205 | (defvar regexp-search-ring nil |
8e1cae6d JB |
206 | "List of regular expression search string sequences.") |
207 | ||
9c1db929 RS |
208 | (defcustom search-ring-max 16 |
209 | "*Maximum length of search ring before oldest elements are thrown away." | |
210 | :type 'integer | |
211 | :group 'isearch) | |
212 | (defcustom regexp-search-ring-max 16 | |
213 | "*Maximum length of regexp search ring before oldest elements are thrown away." | |
214 | :type 'integer | |
215 | :group 'isearch) | |
8e1cae6d JB |
216 | |
217 | (defvar search-ring-yank-pointer nil | |
a5dcf63f RS |
218 | "Index in `search-ring' of last string reused. |
219 | nil if none yet.") | |
08200510 | 220 | (defvar regexp-search-ring-yank-pointer nil |
a5dcf63f RS |
221 | "Index in `regexp-search-ring' of last string reused. |
222 | nil if none yet.") | |
8e1cae6d | 223 | |
9c1db929 | 224 | (defcustom search-ring-update nil |
08200510 | 225 | "*Non-nil if advancing or retreating in the search ring should cause search. |
9c1db929 RS |
226 | Default value, nil, means edit the string instead." |
227 | :type 'boolean | |
228 | :group 'isearch) | |
08200510 | 229 | |
191f025a | 230 | ;; Define isearch-mode keymap. |
8e1cae6d | 231 | |
02b2f510 SM |
232 | (defvar isearch-mode-map |
233 | (let* ((i 0) | |
234 | (map (make-keymap))) | |
235 | (or (vectorp (nth 1 map)) | |
236 | (char-table-p (nth 1 map)) | |
237 | (error "The initialization of isearch-mode-map must be updated")) | |
238 | ;; Make all multibyte characters search for themselves. | |
239 | (let ((l (generic-character-list)) | |
240 | (table (nth 1 map))) | |
241 | (while l | |
242 | (set-char-table-default table (car l) 'isearch-printing-char) | |
243 | (setq l (cdr l)))) | |
1e491f1b EZ |
244 | ;; Make function keys, etc, which aren't bound to a scrolling-function |
245 | ;; exit the search. | |
02b2f510 SM |
246 | (define-key map [t] 'isearch-other-control-char) |
247 | ;; Control chars, by default, end isearch mode transparently. | |
b48ca14f | 248 | ;; We need these explicit definitions because, in a dense keymap, |
02b2f510 SM |
249 | ;; the binding for t does not affect characters. |
250 | ;; We use a dense keymap to save space. | |
251 | (while (< i ?\ ) | |
252 | (define-key map (make-string 1 i) 'isearch-other-control-char) | |
253 | (setq i (1+ i))) | |
254 | ||
255 | ;; Single-byte printing chars extend the search string by default. | |
256 | (setq i ?\ ) | |
257 | (while (< i 256) | |
258 | (define-key map (vector i) 'isearch-printing-char) | |
259 | (setq i (1+ i))) | |
260 | ||
261 | ;; To handle local bindings with meta char prefix keys, define | |
262 | ;; another full keymap. This must be done for any other prefix | |
263 | ;; keys as well, one full keymap per char of the prefix key. It | |
264 | ;; would be simpler to disable the global keymap, and/or have a | |
265 | ;; default local key binding for any key not otherwise bound. | |
266 | (let ((meta-map (make-sparse-keymap))) | |
267 | (define-key map (char-to-string meta-prefix-char) meta-map) | |
268 | (define-key map [escape] meta-map)) | |
269 | (define-key map (vector meta-prefix-char t) 'isearch-other-meta-char) | |
270 | ||
271 | ;; Several non-printing chars change the searching behavior. | |
272 | (define-key map "\C-s" 'isearch-repeat-forward) | |
273 | (define-key map "\C-r" 'isearch-repeat-backward) | |
274 | ;; Define M-C-s and M-C-r like C-s and C-r so that the same key | |
275 | ;; combinations can be used to repeat regexp isearches that can | |
276 | ;; be used to start these searches. | |
277 | (define-key map "\M-\C-s" 'isearch-repeat-forward) | |
278 | (define-key map "\M-\C-r" 'isearch-repeat-backward) | |
279 | (define-key map "\177" 'isearch-delete-char) | |
280 | (define-key map "\C-g" 'isearch-abort) | |
1f4139d5 | 281 | |
02b2f510 SM |
282 | ;; This assumes \e is the meta-prefix-char. |
283 | (or (= ?\e meta-prefix-char) | |
284 | (error "Inconsistency in isearch.el")) | |
285 | (define-key map "\e\e\e" 'isearch-cancel) | |
286 | (define-key map [escape escape escape] 'isearch-cancel) | |
b48ca14f | 287 | |
02b2f510 | 288 | (define-key map "\C-q" 'isearch-quote-char) |
08200510 | 289 | |
02b2f510 SM |
290 | (define-key map "\r" 'isearch-exit) |
291 | (define-key map "\C-j" 'isearch-printing-char) | |
292 | (define-key map "\t" 'isearch-printing-char) | |
293 | (define-key map " " 'isearch-whitespace-chars) | |
294 | (define-key map [?\S-\ ] 'isearch-whitespace-chars) | |
b48ca14f | 295 | |
74820eb5 JL |
296 | (define-key map "\C-w" 'isearch-yank-word-or-char) |
297 | (define-key map "\M-\C-w" 'isearch-del-char) | |
298 | (define-key map "\M-\C-y" 'isearch-yank-char) | |
299 | (define-key map "\C-y" 'isearch-yank-line) | |
08200510 | 300 | |
02b2f510 SM |
301 | ;; Define keys for regexp chars * ? |. |
302 | ;; Nothing special for + because it matches at least once. | |
303 | (define-key map "*" 'isearch-*-char) | |
304 | (define-key map "?" 'isearch-*-char) | |
29f128f6 | 305 | (define-key map "{" 'isearch-{-char) |
02b2f510 | 306 | (define-key map "|" 'isearch-|-char) |
08200510 | 307 | |
191f025a SM |
308 | ;; Turned off because I find I expect to get the global definition--rms. |
309 | ;; ;; Instead bind C-h to special help command for isearch-mode. | |
310 | ;; (define-key map "\C-h" 'isearch-mode-help) | |
08200510 | 311 | |
02b2f510 SM |
312 | (define-key map "\M-n" 'isearch-ring-advance) |
313 | (define-key map "\M-p" 'isearch-ring-retreat) | |
314 | (define-key map "\M-y" 'isearch-yank-kill) | |
315 | ||
316 | (define-key map "\M-\t" 'isearch-complete) | |
317 | ||
318 | ;; Pass frame events transparently so they won't exit the search. | |
319 | ;; In particular, if we have more than one display open, then a | |
320 | ;; switch-frame might be generated by someone typing at another keyboard. | |
321 | (define-key map [switch-frame] nil) | |
322 | (define-key map [delete-frame] nil) | |
323 | (define-key map [iconify-frame] nil) | |
324 | (define-key map [make-frame-visible] nil) | |
3f482bc0 | 325 | (define-key map [mouse-movement] nil) |
02b2f510 SM |
326 | ;; For searching multilingual text. |
327 | (define-key map "\C-\\" 'isearch-toggle-input-method) | |
328 | (define-key map "\C-^" 'isearch-toggle-specified-input-method) | |
329 | ||
330 | ;; People expect to be able to paste with the mouse. | |
e4af1426 | 331 | (define-key map [mouse-2] #'isearch-mouse-2) |
02b2f510 SM |
332 | (define-key map [down-mouse-2] nil) |
333 | ||
334 | ;; Some bindings you may want to put in your isearch-mode-hook. | |
335 | ;; Suggest some alternates... | |
336 | (define-key map "\M-c" 'isearch-toggle-case-fold) | |
337 | (define-key map "\M-r" 'isearch-toggle-regexp) | |
338 | (define-key map "\M-e" 'isearch-edit-string) | |
339 | ||
81e898ea SM |
340 | (define-key map [?\M-%] 'isearch-query-replace) |
341 | (define-key map [?\C-\M-%] 'isearch-query-replace-regexp) | |
74820eb5 | 342 | |
02b2f510 SM |
343 | map) |
344 | "Keymap for `isearch-mode'.") | |
345 | ||
346 | (defvar minibuffer-local-isearch-map | |
347 | (let ((map (make-sparse-keymap))) | |
348 | (set-keymap-parent map minibuffer-local-map) | |
74820eb5 JL |
349 | (define-key map "\r" 'isearch-nonincremental-exit-minibuffer) |
350 | (define-key map "\M-n" 'isearch-ring-advance-edit) | |
351 | (define-key map [next] 'isearch-ring-advance-edit) | |
352 | (define-key map [down] 'isearch-ring-advance-edit) | |
353 | (define-key map "\M-p" 'isearch-ring-retreat-edit) | |
354 | (define-key map [prior] 'isearch-ring-retreat-edit) | |
355 | (define-key map [up] 'isearch-ring-retreat-edit) | |
02b2f510 | 356 | (define-key map "\M-\t" 'isearch-complete-edit) |
74820eb5 JL |
357 | (define-key map "\C-s" 'isearch-forward-exit-minibuffer) |
358 | (define-key map "\C-r" 'isearch-reverse-exit-minibuffer) | |
359 | (define-key map "\C-f" 'isearch-yank-char-in-minibuffer) | |
360 | (define-key map [right] 'isearch-yank-char-in-minibuffer) | |
02b2f510 | 361 | map) |
08200510 | 362 | "Keymap for editing isearch strings in the minibuffer.") |
8e1cae6d | 363 | |
8e1cae6d | 364 | ;; Internal variables declared globally for byte-compiler. |
08200510 RS |
365 | ;; These are all set with setq while isearching |
366 | ;; and bound locally while editing the search string. | |
367 | ||
368 | (defvar isearch-forward nil) ; Searching in the forward direction. | |
369 | (defvar isearch-regexp nil) ; Searching for a regexp. | |
370 | (defvar isearch-word nil) ; Searching for words. | |
cd59ea72 | 371 | (defvar isearch-hidden nil) ; Non-nil if the string exists but is invisible. |
08200510 | 372 | |
191f025a SM |
373 | (defvar isearch-cmds nil |
374 | "Stack of search status sets. | |
375 | Each set is a list of the form: | |
376 | (STRING MESSAGE POINT SUCCESS FORWARD OTHER-END WORD | |
377 | INVALID-REGEXP WRAPPED BARRIER WITHIN-BRACKETS CASE-FOLD-SEARCH)") | |
378 | ||
08200510 RS |
379 | (defvar isearch-string "") ; The current search string. |
380 | (defvar isearch-message "") ; text-char-description version of isearch-string | |
381 | ||
382 | (defvar isearch-success t) ; Searching is currently successful. | |
383 | (defvar isearch-invalid-regexp nil) ; Regexp not well formed. | |
c5f6b356 | 384 | (defvar isearch-within-brackets nil) ; Regexp has unclosed [. |
08200510 RS |
385 | (defvar isearch-other-end nil) ; Start (end) of match if forward (backward). |
386 | (defvar isearch-wrapped nil) ; Searching restarted from the top (bottom). | |
8e1cae6d | 387 | (defvar isearch-barrier 0) |
99ae9e9f | 388 | (defvar isearch-just-started nil) |
ddbe3d5f | 389 | (defvar isearch-start-hscroll 0) ; hscroll when starting the search. |
8e1cae6d | 390 | |
4453091d RS |
391 | ; case-fold-search while searching. |
392 | ; either nil, t, or 'yes. 'yes means the same as t except that mixed | |
393 | ; case in the search string is ignored. | |
394 | (defvar isearch-case-fold-search nil) | |
8e1cae6d | 395 | |
67085aba GM |
396 | (defvar isearch-last-case-fold-search nil) |
397 | ||
ae1a21c6 MB |
398 | ;; Used to save default value while isearch is active |
399 | (defvar isearch-original-minibuffer-message-timeout nil) | |
400 | ||
8e1cae6d JB |
401 | (defvar isearch-adjusted nil) |
402 | (defvar isearch-slow-terminal-mode nil) | |
191f025a | 403 | ;; If t, using a small window. |
08200510 | 404 | (defvar isearch-small-window nil) |
8e1cae6d | 405 | (defvar isearch-opoint 0) |
191f025a | 406 | ;; The window configuration active at the beginning of the search. |
08200510 | 407 | (defvar isearch-window-configuration nil) |
8e1cae6d | 408 | |
08200510 RS |
409 | ;; Flag to indicate a yank occurred, so don't move the cursor. |
410 | (defvar isearch-yank-flag nil) | |
8e1cae6d | 411 | |
191f025a SM |
412 | ;; A function to be called after each input character is processed. |
413 | ;; (It is not called after characters that exit the search.) | |
414 | ;; It is only set from an optional argument to `isearch-mode'. | |
08200510 | 415 | (defvar isearch-op-fun nil) |
8e1cae6d | 416 | |
191f025a | 417 | ;; Is isearch-mode in a recursive edit for modal searching. |
08200510 | 418 | (defvar isearch-recursive-edit nil) |
8e1cae6d | 419 | |
191f025a | 420 | ;; Should isearch be terminated after doing one search? |
08200510 RS |
421 | (defvar isearch-nonincremental nil) |
422 | ||
423 | ;; New value of isearch-forward after isearch-edit-string. | |
424 | (defvar isearch-new-forward nil) | |
8e1cae6d | 425 | |
0352b205 RS |
426 | ;; Accumulate here the overlays opened during searching. |
427 | (defvar isearch-opened-overlays nil) | |
8e1cae6d | 428 | |
99848db0 KH |
429 | ;; The value of input-method-function when isearch is invoked. |
430 | (defvar isearch-input-method-function nil) | |
431 | ||
432 | ;; A flag to tell if input-method-function is locally bound when | |
433 | ;; isearch is invoked. | |
434 | (defvar isearch-input-method-local-p nil) | |
435 | ||
8e1cae6d JB |
436 | ;; Minor-mode-alist changes - kind of redundant with the |
437 | ;; echo area, but if isearching in multiple windows, it can be useful. | |
438 | ||
439 | (or (assq 'isearch-mode minor-mode-alist) | |
440 | (nconc minor-mode-alist | |
441 | (list '(isearch-mode isearch-mode)))) | |
442 | ||
08200510 | 443 | (defvar isearch-mode nil) ;; Name of the minor mode, if non-nil. |
8e1cae6d JB |
444 | (make-variable-buffer-local 'isearch-mode) |
445 | ||
fdf5afa4 RS |
446 | (define-key global-map "\C-s" 'isearch-forward) |
447 | (define-key esc-map "\C-s" 'isearch-forward-regexp) | |
448 | (define-key global-map "\C-r" 'isearch-backward) | |
449 | (define-key esc-map "\C-r" 'isearch-backward-regexp) | |
450 | ||
191f025a | 451 | ;; Entry points to isearch-mode. |
8e1cae6d | 452 | |
eceee2c0 | 453 | (defun isearch-forward (&optional regexp-p no-recursive-edit) |
8e1cae6d JB |
454 | "\ |
455 | Do incremental search forward. | |
08200510 RS |
456 | With a prefix argument, do an incremental regular expression search instead. |
457 | \\<isearch-mode-map> | |
8e1cae6d | 458 | As you type characters, they add to the search string and are found. |
b48ca14f | 459 | The following non-printing keys are bound in `isearch-mode-map'. |
8e1cae6d | 460 | |
35904fd3 | 461 | Type \\[isearch-delete-char] to cancel last input item from end of search string. |
8e1cae6d | 462 | Type \\[isearch-exit] to exit, leaving point at location found. |
08200510 RS |
463 | Type LFD (C-j) to match end of line. |
464 | Type \\[isearch-repeat-forward] to search again forward,\ | |
465 | \\[isearch-repeat-backward] to search again backward. | |
74820eb5 | 466 | Type \\[isearch-yank-word-or-char] to yank word from buffer onto end of search\ |
35904fd3 | 467 | string and search for it. |
74820eb5 JL |
468 | Type \\[isearch-del-char] to delete character from end of search string. |
469 | Type \\[isearch-yank-char] to yank char from buffer onto end of search\ | |
08200510 RS |
470 | string and search for it. |
471 | Type \\[isearch-yank-line] to yank rest of line onto end of search string\ | |
472 | and search for it. | |
8617e346 KH |
473 | Type \\[isearch-yank-kill] to yank last killed text onto end of search string\ |
474 | and search for it. | |
8e1cae6d | 475 | Type \\[isearch-quote-char] to quote control character to search for it. |
08200510 RS |
476 | \\[isearch-abort] while searching or when search has failed cancels input\ |
477 | back to what has | |
478 | been found successfully. | |
479 | \\[isearch-abort] when search is successful aborts and moves point to\ | |
480 | starting point. | |
8e1cae6d | 481 | |
6c551d4e EZ |
482 | Type \\[isearch-toggle-case-fold] to toggle search case-sensitivity. |
483 | Type \\[isearch-toggle-regexp] to toggle regular-expression mode. | |
484 | Type \\[isearch-edit-string] to edit the search string in the minibuffer. | |
485 | ||
8e1cae6d JB |
486 | Also supported is a search ring of the previous 16 search strings. |
487 | Type \\[isearch-ring-advance] to search for the next item in the search ring. | |
08200510 RS |
488 | Type \\[isearch-ring-retreat] to search for the previous item in the search\ |
489 | ring. | |
490 | Type \\[isearch-complete] to complete the search string using the search ring. | |
8e1cae6d | 491 | |
1e14b095 | 492 | If an input method is turned on in the current buffer, that input |
b48ca14f | 493 | method is also active while you are typing characters to search. To |
37b20c9b KH |
494 | toggle the input method, type \\[isearch-toggle-input-method]. It |
495 | also toggles the input method in the current buffer. | |
496 | ||
497 | To use a different input method for searching, type | |
1e14b095 | 498 | \\[isearch-toggle-specified-input-method], and specify an input method |
37b20c9b KH |
499 | you want to use. |
500 | ||
b48ca14f | 501 | The above keys, bound in `isearch-mode-map', are often controlled by |
35904fd3 | 502 | options; do \\[apropos] on search-.* to find them. |
8e1cae6d | 503 | Other control and meta characters terminate the search |
08200510 | 504 | and are then executed normally (depending on `search-exit-option'). |
fd49e05c | 505 | Likewise for function keys and mouse button events. |
8e1cae6d | 506 | |
08200510 RS |
507 | If this function is called non-interactively, it does not return to |
508 | the calling function until the search is done." | |
8e1cae6d | 509 | |
eceee2c0 | 510 | (interactive "P\np") |
4ae7d00a | 511 | (isearch-mode t (not (null regexp-p)) nil (not no-recursive-edit))) |
8e1cae6d | 512 | |
eceee2c0 | 513 | (defun isearch-forward-regexp (&optional not-regexp no-recursive-edit) |
8e1cae6d JB |
514 | "\ |
515 | Do incremental search forward for regular expression. | |
08200510 | 516 | With a prefix argument, do a regular string search instead. |
8e1cae6d JB |
517 | Like ordinary incremental search except that your input |
518 | is treated as a regexp. See \\[isearch-forward] for more info." | |
eceee2c0 | 519 | (interactive "P\np") |
4ae7d00a | 520 | (isearch-mode t (null not-regexp) nil (not no-recursive-edit))) |
8e1cae6d | 521 | |
eceee2c0 | 522 | (defun isearch-backward (&optional regexp-p no-recursive-edit) |
8e1cae6d JB |
523 | "\ |
524 | Do incremental search backward. | |
08200510 | 525 | With a prefix argument, do a regular expression search instead. |
8e1cae6d | 526 | See \\[isearch-forward] for more information." |
eceee2c0 | 527 | (interactive "P\np") |
4ae7d00a | 528 | (isearch-mode nil (not (null regexp-p)) nil (not no-recursive-edit))) |
8e1cae6d | 529 | |
eceee2c0 | 530 | (defun isearch-backward-regexp (&optional not-regexp no-recursive-edit) |
8e1cae6d JB |
531 | "\ |
532 | Do incremental search backward for regular expression. | |
08200510 | 533 | With a prefix argument, do a regular string search instead. |
8e1cae6d JB |
534 | Like ordinary incremental search except that your input |
535 | is treated as a regexp. See \\[isearch-forward] for more info." | |
eceee2c0 | 536 | (interactive "P\np") |
4ae7d00a | 537 | (isearch-mode nil (null not-regexp) nil (not no-recursive-edit))) |
08200510 RS |
538 | |
539 | ||
540 | (defun isearch-mode-help () | |
541 | (interactive) | |
542 | (describe-function 'isearch-forward) | |
543 | (isearch-update)) | |
8e1cae6d JB |
544 | |
545 | \f | |
8e1cae6d JB |
546 | ;; isearch-mode only sets up incremental search for the minor mode. |
547 | ;; All the work is done by the isearch-mode commands. | |
548 | ||
08200510 | 549 | ;; Not used yet: |
d7fa5aa2 | 550 | ;;(defvar isearch-commands '(isearch-forward isearch-backward |
08200510 RS |
551 | ;; isearch-forward-regexp isearch-backward-regexp) |
552 | ;; "List of commands for which isearch-mode does not recursive-edit.") | |
b48ca14f | 553 | |
08200510 RS |
554 | |
555 | (defun isearch-mode (forward &optional regexp op-fun recursive-edit word-p) | |
79ce455d RS |
556 | "Start isearch minor mode. Called by `isearch-forward', etc. |
557 | ||
558 | \\{isearch-mode-map}" | |
8e1cae6d JB |
559 | |
560 | ;; Initialize global vars. | |
561 | (setq isearch-forward forward | |
562 | isearch-regexp regexp | |
08200510 | 563 | isearch-word word-p |
8e1cae6d | 564 | isearch-op-fun op-fun |
67085aba | 565 | isearch-last-case-fold-search isearch-case-fold-search |
8e1cae6d JB |
566 | isearch-case-fold-search case-fold-search |
567 | isearch-string "" | |
568 | isearch-message "" | |
569 | isearch-cmds nil | |
570 | isearch-success t | |
571 | isearch-wrapped nil | |
572 | isearch-barrier (point) | |
573 | isearch-adjusted nil | |
574 | isearch-yank-flag nil | |
575 | isearch-invalid-regexp nil | |
c5f6b356 | 576 | isearch-within-brackets nil |
0cabad13 | 577 | isearch-slow-terminal-mode (and (<= baud-rate search-slow-speed) |
8e1cae6d | 578 | (> (window-height) |
fad241d3 RS |
579 | (* 4 |
580 | (abs search-slow-window-lines)))) | |
8e1cae6d JB |
581 | isearch-other-end nil |
582 | isearch-small-window nil | |
99ae9e9f | 583 | isearch-just-started t |
ddbe3d5f | 584 | isearch-start-hscroll (window-hscroll) |
8e1cae6d | 585 | |
8e1cae6d | 586 | isearch-opoint (point) |
a5dcf63f | 587 | search-ring-yank-pointer nil |
0352b205 | 588 | isearch-opened-overlays nil |
99848db0 KH |
589 | isearch-input-method-function input-method-function |
590 | isearch-input-method-local-p (local-variable-p 'input-method-function) | |
ae1a21c6 MB |
591 | regexp-search-ring-yank-pointer nil |
592 | ||
593 | ;; Save the original value of `minibuffer-message-timeout', and | |
594 | ;; set it to nil so that isearch's messages don't get timed out. | |
595 | isearch-original-minibuffer-message-timeout minibuffer-message-timeout | |
596 | minibuffer-message-timeout nil) | |
99848db0 KH |
597 | |
598 | ;; We must bypass input method while reading key. When a user type | |
599 | ;; printable character, appropriate input method is turned on in | |
380866a2 | 600 | ;; minibuffer to read multibyte characters. |
99848db0 KH |
601 | (or isearch-input-method-local-p |
602 | (make-local-variable 'input-method-function)) | |
603 | (setq input-method-function nil) | |
604 | ||
99ae9e9f | 605 | (looking-at "") |
292a8dff RS |
606 | (setq isearch-window-configuration |
607 | (if isearch-slow-terminal-mode (current-window-configuration) nil)) | |
70418205 | 608 | |
18ce7555 RS |
609 | ;; Maybe make minibuffer frame visible and/or raise it. |
610 | (let ((frame (window-frame (minibuffer-window)))) | |
360e0dd5 RS |
611 | (unless (memq (frame-live-p frame) '(nil t)) |
612 | (unless (frame-visible-p frame) | |
613 | (make-frame-visible frame)) | |
614 | (if minibuffer-auto-raise | |
615 | (raise-frame frame)))) | |
18ce7555 | 616 | |
8e1cae6d | 617 | (setq isearch-mode " Isearch") ;; forward? regexp? |
1cd3732c | 618 | (force-mode-line-update) |
8e1cae6d JB |
619 | |
620 | (isearch-push-state) | |
621 | ||
c7955222 | 622 | (setq overriding-terminal-local-map isearch-mode-map) |
8e1cae6d JB |
623 | (isearch-update) |
624 | (run-hooks 'isearch-mode-hook) | |
08200510 | 625 | |
bfe2d334 | 626 | (add-hook 'mouse-leave-buffer-hook 'isearch-done) |
7e56ea04 | 627 | (add-hook 'kbd-macro-termination-hook 'isearch-done) |
6e5cd0ae | 628 | |
b48ca14f JB |
629 | ;; isearch-mode can be made modal (in the sense of not returning to |
630 | ;; the calling function until searching is completed) by entering | |
08200510 | 631 | ;; a recursive-edit and exiting it when done isearching. |
130bf67c RS |
632 | (if recursive-edit |
633 | (let ((isearch-recursive-edit t)) | |
634 | (recursive-edit))) | |
0daa17f3 | 635 | isearch-success) |
8e1cae6d JB |
636 | |
637 | ||
8e1cae6d JB |
638 | ;; Some high level utilities. Others below. |
639 | ||
640 | (defun isearch-update () | |
191f025a | 641 | ;; Called after each command to update the display. |
4c01d4bd RS |
642 | (if (and (null unread-command-events) |
643 | (null executing-kbd-macro)) | |
8e1cae6d | 644 | (progn |
c982ab21 GM |
645 | (if (not (input-pending-p)) |
646 | (isearch-message)) | |
647 | (if (and isearch-slow-terminal-mode | |
b48ca14f | 648 | (not (or isearch-small-window |
c982ab21 GM |
649 | (pos-visible-in-window-p)))) |
650 | (let ((found-point (point))) | |
651 | (setq isearch-small-window t) | |
652 | (move-to-window-line 0) | |
653 | (let ((window-min-height 1)) | |
654 | (split-window nil (if (< search-slow-window-lines 0) | |
655 | (1+ (- search-slow-window-lines)) | |
656 | (- (window-height) | |
657 | (1+ search-slow-window-lines))))) | |
658 | (if (< search-slow-window-lines 0) | |
659 | (progn (vertical-motion (- 1 search-slow-window-lines)) | |
660 | (set-window-start (next-window) (point)) | |
661 | (set-window-hscroll (next-window) | |
662 | (window-hscroll)) | |
663 | (set-window-hscroll (selected-window) 0)) | |
664 | (other-window 1)) | |
ddbe3d5f RS |
665 | (goto-char found-point)) |
666 | ;; Keep same hscrolling as at the start of the search when possible | |
667 | (let ((current-scroll (window-hscroll))) | |
668 | (set-window-hscroll (selected-window) isearch-start-hscroll) | |
669 | (unless (pos-visible-in-window-p) | |
670 | (set-window-hscroll (selected-window) current-scroll)))) | |
671 | (if isearch-other-end | |
c982ab21 GM |
672 | (if (< isearch-other-end (point)) ; isearch-forward? |
673 | (isearch-highlight isearch-other-end (point)) | |
674 | (isearch-highlight (point) isearch-other-end)) | |
675 | (isearch-dehighlight nil)) | |
676 | )) | |
8e1cae6d JB |
677 | (setq ;; quit-flag nil not for isearch-mode |
678 | isearch-adjusted nil | |
679 | isearch-yank-flag nil) | |
a5cc922e KH |
680 | (isearch-lazy-highlight-new-loop) |
681 | ;; We must prevent the point moving to the end of composition when a | |
682 | ;; part of the composition has just been searched. | |
683 | (setq disable-point-adjustment t)) | |
8e1cae6d | 684 | |
0daa17f3 | 685 | (defun isearch-done (&optional nopush edit) |
6848c9f1 KS |
686 | (if isearch-resume-enabled |
687 | (let ((command `(isearch-resume ,isearch-string ,isearch-regexp | |
688 | ,isearch-word ,isearch-forward | |
689 | ,isearch-message | |
690 | ',isearch-case-fold-search))) | |
691 | (unless (equal (car command-history) command) | |
692 | (setq command-history (cons command command-history))))) | |
c40a4de1 | 693 | |
bfe2d334 | 694 | (remove-hook 'mouse-leave-buffer-hook 'isearch-done) |
7e56ea04 | 695 | (remove-hook 'kbd-macro-termination-hook 'isearch-done) |
d196f58d GM |
696 | (setq isearch-lazy-highlight-start nil) |
697 | ||
8e1cae6d | 698 | ;; Called by all commands that terminate isearch-mode. |
35a4d143 | 699 | ;; If NOPUSH is non-nil, we don't push the string on the search ring. |
c7955222 | 700 | (setq overriding-terminal-local-map nil) |
08200510 | 701 | ;; (setq pre-command-hook isearch-old-pre-command-hook) ; for lemacs |
ae1a21c6 | 702 | (setq minibuffer-message-timeout isearch-original-minibuffer-message-timeout) |
08200510 | 703 | (isearch-dehighlight t) |
67ecad4e | 704 | (isearch-lazy-highlight-cleanup isearch-lazy-highlight-cleanup) |
08200510 RS |
705 | (let ((found-start (window-start (selected-window))) |
706 | (found-point (point))) | |
70418205 RS |
707 | (if isearch-window-configuration |
708 | (set-window-configuration isearch-window-configuration)) | |
08200510 | 709 | |
d49b6338 RS |
710 | (if isearch-small-window |
711 | (goto-char found-point) | |
712 | ;; Exiting the save-window-excursion clobbers window-start; restore it. | |
9821535a | 713 | (set-window-start (selected-window) found-start t)) |
d49b6338 | 714 | |
08200510 RS |
715 | ;; If there was movement, mark the starting position. |
716 | ;; Maybe should test difference between and set mark iff > threshold. | |
717 | (if (/= (point) isearch-opoint) | |
9821535a RS |
718 | (or (and transient-mark-mode mark-active) |
719 | (progn | |
720 | (push-mark isearch-opoint t) | |
f3acf6f5 | 721 | (or executing-kbd-macro (> (minibuffer-depth) 0) |
9821535a | 722 | (message "Mark saved where search started")))))) |
08200510 RS |
723 | |
724 | (setq isearch-mode nil) | |
99848db0 KH |
725 | (if isearch-input-method-local-p |
726 | (setq input-method-function isearch-input-method-function) | |
727 | (kill-local-variable 'input-method-function)) | |
728 | ||
1cd3732c | 729 | (force-mode-line-update) |
8e1cae6d | 730 | |
df01192b RS |
731 | ;; If we ended in the middle of some intangible text, |
732 | ;; move to the further end of that intangible text. | |
733 | (let ((after (if (eobp) nil | |
734 | (get-text-property (point) 'intangible))) | |
735 | (before (if (bobp) nil | |
736 | (get-text-property (1- (point)) 'intangible)))) | |
737 | (when (and before after (eq before after)) | |
738 | (if isearch-forward | |
739 | (goto-char (next-single-property-change (point) 'intangible)) | |
740 | (goto-char (previous-single-property-change (point) 'intangible))))) | |
741 | ||
35a4d143 | 742 | (if (and (> (length isearch-string) 0) (not nopush)) |
8e1cae6d | 743 | ;; Update the ring data. |
73d2bf95 | 744 | (isearch-update-ring isearch-string isearch-regexp)) |
8e1cae6d | 745 | |
8e1cae6d | 746 | (run-hooks 'isearch-mode-end-hook) |
0daa17f3 | 747 | (and (not edit) isearch-recursive-edit (exit-recursive-edit))) |
08200510 | 748 | |
73d2bf95 RS |
749 | (defun isearch-update-ring (string &optional regexp) |
750 | "Add STRING to the beginning of the search ring. | |
751 | REGEXP says which ring to use." | |
b48ca14f | 752 | (if regexp |
73d2bf95 | 753 | (if (or (null regexp-search-ring) |
fd89878d | 754 | (not (string= string (car regexp-search-ring)))) |
73d2bf95 | 755 | (progn |
c789e608 | 756 | (push string regexp-search-ring) |
73d2bf95 RS |
757 | (if (> (length regexp-search-ring) regexp-search-ring-max) |
758 | (setcdr (nthcdr (1- search-ring-max) regexp-search-ring) | |
759 | nil)))) | |
760 | (if (or (null search-ring) | |
fd89878d | 761 | (not (string= string (car search-ring)))) |
73d2bf95 | 762 | (progn |
c789e608 | 763 | (push string search-ring) |
73d2bf95 RS |
764 | (if (> (length search-ring) search-ring-max) |
765 | (setcdr (nthcdr (1- search-ring-max) search-ring) nil)))))) | |
766 | ||
191f025a SM |
767 | ;; Switching buffers should first terminate isearch-mode. |
768 | ;; ;; For Emacs 19, the frame switch event is handled. | |
769 | ;; (defun isearch-switch-frame-handler () | |
770 | ;; (interactive) ;; Is this necessary? | |
771 | ;; ;; First terminate isearch-mode. | |
772 | ;; (isearch-done) | |
773 | ;; (isearch-clean-overlays) | |
774 | ;; (handle-switch-frame (car (cdr last-command-char)))) | |
08200510 | 775 | |
8e1cae6d | 776 | \f |
8e1cae6d JB |
777 | ;; Commands active while inside of the isearch minor mode. |
778 | ||
779 | (defun isearch-exit () | |
780 | "Exit search normally. | |
781 | However, if this is the first command after starting incremental | |
782 | search and `search-nonincremental-instead' is non-nil, do a | |
08200510 | 783 | nonincremental search instead via `isearch-edit-string'." |
8e1cae6d | 784 | (interactive) |
b48ca14f | 785 | (if (and search-nonincremental-instead |
8e1cae6d | 786 | (= 0 (length isearch-string))) |
08200510 RS |
787 | (let ((isearch-nonincremental t)) |
788 | (isearch-edit-string))) | |
0352b205 RS |
789 | (isearch-done) |
790 | (isearch-clean-overlays)) | |
8e1cae6d JB |
791 | |
792 | ||
793 | (defun isearch-edit-string () | |
08200510 RS |
794 | "Edit the search string in the minibuffer. |
795 | The following additional command keys are active while editing. | |
796 | \\<minibuffer-local-isearch-map> | |
797 | \\[exit-minibuffer] to resume incremental searching with the edited string. | |
798 | \\[isearch-nonincremental-exit-minibuffer] to do one nonincremental search. | |
799 | \\[isearch-forward-exit-minibuffer] to resume isearching forward. | |
8eb40e74 | 800 | \\[isearch-reverse-exit-minibuffer] to resume isearching backward. |
08200510 | 801 | \\[isearch-ring-advance-edit] to replace the search string with the next item in the search ring. |
eb8c3be9 | 802 | \\[isearch-ring-retreat-edit] to replace the search string with the previous item in the search ring. |
08200510 | 803 | \\[isearch-complete-edit] to complete the search string using the search ring. |
8eb40e74 | 804 | \\<isearch-mode-map> |
74820eb5 | 805 | If first char entered is \\[isearch-yank-word-or-char], then do word search instead." |
08200510 RS |
806 | |
807 | ;; This code is very hairy for several reasons, explained in the code. | |
808 | ;; Mainly, isearch-mode must be terminated while editing and then restarted. | |
809 | ;; If there were a way to catch any change of buffer from the minibuffer, | |
810 | ;; this could be simplified greatly. | |
eb8c3be9 | 811 | ;; Editing doesn't back up the search point. Should it? |
8e1cae6d | 812 | (interactive) |
08200510 | 813 | (condition-case err |
e900ced4 RS |
814 | (progn |
815 | (let ((isearch-nonincremental isearch-nonincremental) | |
816 | ||
817 | ;; Locally bind all isearch global variables to protect them | |
818 | ;; from recursive isearching. | |
819 | ;; isearch-string -message and -forward are not bound | |
820 | ;; so they may be changed. Instead, save the values. | |
821 | (isearch-new-string isearch-string) | |
822 | (isearch-new-message isearch-message) | |
823 | (isearch-new-forward isearch-forward) | |
824 | (isearch-new-word isearch-word) | |
825 | ||
826 | (isearch-regexp isearch-regexp) | |
827 | (isearch-op-fun isearch-op-fun) | |
828 | (isearch-cmds isearch-cmds) | |
829 | (isearch-success isearch-success) | |
830 | (isearch-wrapped isearch-wrapped) | |
831 | (isearch-barrier isearch-barrier) | |
832 | (isearch-adjusted isearch-adjusted) | |
833 | (isearch-yank-flag isearch-yank-flag) | |
834 | (isearch-invalid-regexp isearch-invalid-regexp) | |
835 | (isearch-within-brackets isearch-within-brackets) | |
836 | ;;; Don't bind this. We want isearch-search, below, to set it. | |
837 | ;;; And the old value won't matter after that. | |
838 | ;;; (isearch-other-end isearch-other-end) | |
839 | ;;; Perhaps some of these other variables should be bound for a | |
840 | ;;; shorter period, ending before the next isearch-search. | |
841 | ;;; But there doesn't seem to be a real bug, so let's not risk it now. | |
842 | (isearch-opoint isearch-opoint) | |
843 | (isearch-slow-terminal-mode isearch-slow-terminal-mode) | |
844 | (isearch-small-window isearch-small-window) | |
845 | (isearch-recursive-edit isearch-recursive-edit) | |
846 | ;; Save current configuration so we can restore it here. | |
847 | (isearch-window-configuration (current-window-configuration)) | |
ae1a21c6 MB |
848 | |
849 | ;; Temporarily restore `minibuffer-message-timeout'. | |
850 | (minibuffer-message-timeout | |
851 | isearch-original-minibuffer-message-timeout) | |
852 | (isearch-original-minibuffer-message-timeout | |
853 | isearch-original-minibuffer-message-timeout) | |
e900ced4 RS |
854 | ) |
855 | ||
856 | ;; Actually terminate isearching until editing is done. | |
b48ca14f | 857 | ;; This is so that the user can do anything without failure, |
e900ced4 RS |
858 | ;; like switch buffers and start another isearch, and return. |
859 | (condition-case err | |
860 | (isearch-done t t) | |
861 | (exit nil)) ; was recursive editing | |
862 | ||
863 | (isearch-message) ;; for read-char | |
864 | (unwind-protect | |
b48ca14f | 865 | (let* (;; Why does following read-char echo? |
e900ced4 RS |
866 | ;;(echo-keystrokes 0) ;; not needed with above message |
867 | (e (let ((cursor-in-echo-area t)) | |
868 | (read-event))) | |
869 | ;; Binding minibuffer-history-symbol to nil is a work-around | |
870 | ;; for some incompatibility with gmhist. | |
871 | (minibuffer-history-symbol) | |
872 | (message-log-max nil)) | |
873 | ;; If the first character the user types when we prompt them | |
874 | ;; for a string is the yank-word character, then go into | |
875 | ;; word-search mode. Otherwise unread that character and | |
876 | ;; read a key the normal way. | |
877 | ;; Word search does not apply (yet) to regexp searches, | |
878 | ;; no check is made here. | |
879 | (message (isearch-message-prefix nil nil t)) | |
88715f05 RS |
880 | (if (memq (lookup-key isearch-mode-map (vector e)) |
881 | '(isearch-yank-word | |
882 | isearch-yank-word-or-char)) | |
e900ced4 RS |
883 | (setq isearch-word t;; so message-prefix is right |
884 | isearch-new-word t) | |
885 | (cancel-kbd-macro-events) | |
886 | (isearch-unread e)) | |
887 | (setq cursor-in-echo-area nil) | |
888 | (setq isearch-new-string | |
889 | (let (junk-ring) | |
890 | (read-from-minibuffer | |
891 | (isearch-message-prefix nil nil isearch-nonincremental) | |
892 | isearch-string | |
893 | minibuffer-local-isearch-map nil | |
894 | 'junk-ring)) | |
895 | isearch-new-message | |
896 | (mapconcat 'isearch-text-char-description | |
897 | isearch-new-string ""))) | |
898 | ;; Always resume isearching by restarting it. | |
b48ca14f JB |
899 | (isearch-mode isearch-forward |
900 | isearch-regexp | |
901 | isearch-op-fun | |
e900ced4 RS |
902 | nil |
903 | isearch-word) | |
904 | ||
905 | ;; Copy new local values to isearch globals | |
906 | (setq isearch-string isearch-new-string | |
907 | isearch-message isearch-new-message | |
908 | isearch-forward isearch-new-forward | |
909 | isearch-word isearch-new-word)) | |
910 | ||
911 | ;; Empty isearch-string means use default. | |
912 | (if (= 0 (length isearch-string)) | |
913 | (setq isearch-string (or (car (if isearch-regexp | |
914 | regexp-search-ring | |
915 | search-ring)) | |
8cc3c821 RS |
916 | "") |
917 | ||
918 | isearch-message | |
919 | (mapconcat 'isearch-text-char-description | |
920 | isearch-string "")) | |
e900ced4 RS |
921 | ;; This used to set the last search string, |
922 | ;; but I think it is not right to do that here. | |
923 | ;; Only the string actually used should be saved. | |
924 | )) | |
925 | ||
926 | ;; Push the state as of before this C-s. | |
927 | (isearch-push-state) | |
08200510 RS |
928 | |
929 | ;; Reinvoke the pending search. | |
08200510 RS |
930 | (isearch-search) |
931 | (isearch-update) | |
b48ca14f | 932 | (if isearch-nonincremental |
08200510 RS |
933 | (progn |
934 | ;; (sit-for 1) ;; needed if isearch-done does: (message "") | |
935 | (isearch-done)))) | |
8e1cae6d | 936 | |
08200510 RS |
937 | (quit ; handle abort-recursive-edit |
938 | (isearch-abort) ;; outside of let to restore outside global values | |
939 | ))) | |
940 | ||
941 | (defun isearch-nonincremental-exit-minibuffer () | |
942 | (interactive) | |
943 | (setq isearch-nonincremental t) | |
944 | (exit-minibuffer)) | |
945 | ||
946 | (defun isearch-forward-exit-minibuffer () | |
947 | (interactive) | |
948 | (setq isearch-new-forward t) | |
949 | (exit-minibuffer)) | |
8e1cae6d | 950 | |
08200510 | 951 | (defun isearch-reverse-exit-minibuffer () |
8e1cae6d | 952 | (interactive) |
08200510 RS |
953 | (setq isearch-new-forward nil) |
954 | (exit-minibuffer)) | |
955 | ||
19993c54 RS |
956 | (defun isearch-cancel () |
957 | "Terminate the search and go back to the starting point." | |
958 | (interactive) | |
959 | (goto-char isearch-opoint) | |
960 | (isearch-done t) | |
0352b205 | 961 | (isearch-clean-overlays) |
19993c54 | 962 | (signal 'quit nil)) ; and pass on quit signal |
08200510 RS |
963 | |
964 | (defun isearch-abort () | |
b7852303 | 965 | "Abort incremental search mode if searching is successful, signaling quit. |
08200510 | 966 | Otherwise, revert to previous successful search and continue searching. |
b7852303 | 967 | Use `isearch-exit' to quit without signaling." |
08200510 | 968 | (interactive) |
eb8c3be9 | 969 | ;; (ding) signal instead below, if quitting |
8e1cae6d JB |
970 | (discard-input) |
971 | (if isearch-success | |
972 | ;; If search is successful, move back to starting point | |
973 | ;; and really do quit. | |
974 | (progn (goto-char isearch-opoint) | |
509ed182 | 975 | (setq isearch-success nil) |
35a4d143 | 976 | (isearch-done t) ; exit isearch |
0352b205 | 977 | (isearch-clean-overlays) |
a5dcf63f | 978 | (signal 'quit nil)) ; and pass on quit signal |
925a67ca RS |
979 | ;; If search is failing, or has an incomplete regexp, |
980 | ;; rub out until it is once more successful. | |
981 | (while (or (not isearch-success) isearch-invalid-regexp) | |
982 | (isearch-pop-state)) | |
8e1cae6d JB |
983 | (isearch-update))) |
984 | ||
8e1cae6d JB |
985 | (defun isearch-repeat (direction) |
986 | ;; Utility for isearch-repeat-forward and -backward. | |
987 | (if (eq isearch-forward (eq direction 'forward)) | |
988 | ;; C-s in forward or C-r in reverse. | |
989 | (if (equal isearch-string "") | |
990 | ;; If search string is empty, use last one. | |
991 | (setq isearch-string | |
8e1cae6d | 992 | (or (if isearch-regexp |
a5dcf63f RS |
993 | (car regexp-search-ring) |
994 | (car search-ring)) | |
135f293b | 995 | (error "No previous search string")) |
8e1cae6d | 996 | isearch-message |
08200510 | 997 | (mapconcat 'isearch-text-char-description |
67085aba GM |
998 | isearch-string "") |
999 | isearch-case-fold-search isearch-last-case-fold-search) | |
8e1cae6d JB |
1000 | ;; If already have what to search for, repeat it. |
1001 | (or isearch-success | |
02b2f510 | 1002 | (progn |
8e1cae6d JB |
1003 | (goto-char (if isearch-forward (point-min) (point-max))) |
1004 | (setq isearch-wrapped t)))) | |
1005 | ;; C-s in reverse or C-r in forward, change direction. | |
1006 | (setq isearch-forward (not isearch-forward))) | |
1007 | ||
1008 | (setq isearch-barrier (point)) ; For subsequent \| if regexp. | |
6fefdc4b RS |
1009 | |
1010 | (if (equal isearch-string "") | |
1011 | (setq isearch-success t) | |
512bfd85 RS |
1012 | (if (and isearch-success |
1013 | (equal (point) isearch-other-end) | |
99ae9e9f | 1014 | (not isearch-just-started)) |
8e1cae6d JB |
1015 | ;; If repeating a search that found |
1016 | ;; an empty string, ensure we advance. | |
6fefdc4b RS |
1017 | (if (if isearch-forward (eobp) (bobp)) |
1018 | ;; If there's nowhere to advance to, fail (and wrap next time). | |
1019 | (progn | |
1020 | (setq isearch-success nil) | |
1021 | (ding)) | |
1022 | (forward-char (if isearch-forward 1 -1)) | |
1023 | (isearch-search)) | |
1024 | (isearch-search))) | |
1025 | ||
8e1cae6d JB |
1026 | (isearch-push-state) |
1027 | (isearch-update)) | |
1028 | ||
1029 | (defun isearch-repeat-forward () | |
1030 | "Repeat incremental search forwards." | |
1031 | (interactive) | |
1032 | (isearch-repeat 'forward)) | |
1033 | ||
1034 | (defun isearch-repeat-backward () | |
1035 | "Repeat incremental search backwards." | |
1036 | (interactive) | |
1037 | (isearch-repeat 'backward)) | |
1038 | ||
1039 | (defun isearch-toggle-regexp () | |
1040 | "Toggle regexp searching on or off." | |
1041 | ;; The status stack is left unchanged. | |
1042 | (interactive) | |
1043 | (setq isearch-regexp (not isearch-regexp)) | |
08200510 | 1044 | (if isearch-regexp (setq isearch-word nil)) |
8e1cae6d JB |
1045 | (isearch-update)) |
1046 | ||
4453091d RS |
1047 | (defun isearch-toggle-case-fold () |
1048 | "Toggle case folding in searching on or off." | |
1049 | (interactive) | |
1050 | (setq isearch-case-fold-search | |
1051 | (if isearch-case-fold-search nil 'yes)) | |
a56687f1 KH |
1052 | (let ((message-log-max nil)) |
1053 | (message "%s%s [case %ssensitive]" | |
1054 | (isearch-message-prefix nil nil isearch-nonincremental) | |
1055 | isearch-message | |
1056 | (if isearch-case-fold-search "in" ""))) | |
4453091d RS |
1057 | (setq isearch-adjusted t) |
1058 | (sit-for 1) | |
1059 | (isearch-update)) | |
1060 | ||
74820eb5 JL |
1061 | (defun isearch-query-replace () |
1062 | "Start query-replace with string to replace from last search string." | |
1063 | (interactive) | |
81e898ea SM |
1064 | (barf-if-buffer-read-only) |
1065 | (let ((case-fold-search isearch-case-fold-search)) | |
74820eb5 JL |
1066 | (isearch-done) |
1067 | (isearch-clean-overlays) | |
1068 | (and isearch-forward isearch-other-end (goto-char isearch-other-end)) | |
81e898ea SM |
1069 | (perform-replace |
1070 | isearch-string | |
1071 | (query-replace-read-to isearch-string "Query replace" isearch-regexp) | |
1072 | t isearch-regexp isearch-word))) | |
74820eb5 JL |
1073 | |
1074 | (defun isearch-query-replace-regexp () | |
1075 | "Start query-replace-regexp with string to replace from last search string." | |
1076 | (interactive) | |
00c8fbf6 | 1077 | (let ((query-replace-interactive t) |
74820eb5 JL |
1078 | (case-fold-search isearch-case-fold-search)) |
1079 | ;; Put search string into the right ring | |
1080 | (setq isearch-regexp t) | |
1081 | (isearch-done) | |
1082 | (isearch-clean-overlays) | |
1083 | (and isearch-forward isearch-other-end (goto-char isearch-other-end)) | |
1084 | (call-interactively 'query-replace-regexp))) | |
1085 | ||
1086 | \f | |
8e1cae6d | 1087 | (defun isearch-delete-char () |
d6b8a1c0 | 1088 | "Discard last input item and move point back. |
8e1cae6d JB |
1089 | If no previous match was done, just beep." |
1090 | (interactive) | |
1091 | (if (null (cdr isearch-cmds)) | |
1092 | (ding) | |
1093 | (isearch-pop-state)) | |
1094 | (isearch-update)) | |
1095 | ||
74820eb5 JL |
1096 | (defun isearch-del-char (&optional arg) |
1097 | "Delete character from end of search string and search again. | |
1098 | If search string is empty, just beep." | |
1099 | (interactive "p") | |
1100 | (if (= 0 (length isearch-string)) | |
35904fd3 | 1101 | (ding) |
74820eb5 | 1102 | (setq isearch-string (substring isearch-string 0 (- (or arg 1))) |
35904fd3 | 1103 | isearch-message (mapconcat 'isearch-text-char-description |
74820eb5 JL |
1104 | isearch-string "") |
1105 | ;; Don't move cursor in reverse search. | |
1106 | isearch-yank-flag t)) | |
35904fd3 | 1107 | (isearch-search-and-update)) |
8e1cae6d | 1108 | |
9cf081fa KH |
1109 | (defun isearch-yank-string (string) |
1110 | "Pull STRING into search string." | |
1111 | ;; Downcase the string if not supposed to case-fold yanked strings. | |
1112 | (if (and isearch-case-fold-search | |
1113 | (eq 'not-yanks search-upper-case)) | |
1114 | (setq string (downcase string))) | |
1115 | (if isearch-regexp (setq string (regexp-quote string))) | |
1116 | (setq isearch-string (concat isearch-string string) | |
1117 | isearch-message | |
1118 | (concat isearch-message | |
1119 | (mapconcat 'isearch-text-char-description | |
1120 | string "")) | |
1121 | ;; Don't move cursor in reverse search. | |
1122 | isearch-yank-flag t) | |
8e1cae6d JB |
1123 | (isearch-search-and-update)) |
1124 | ||
30d47262 RS |
1125 | (defun isearch-yank-kill () |
1126 | "Pull string from kill ring into search string." | |
1127 | (interactive) | |
9cf081fa KH |
1128 | (isearch-yank-string (current-kill 0))) |
1129 | ||
1130 | (defun isearch-yank-x-selection () | |
117132a6 | 1131 | "Pull current X selection into search string." |
9cf081fa KH |
1132 | (interactive) |
1133 | (isearch-yank-string (x-get-selection))) | |
8e1cae6d | 1134 | |
e4af1426 | 1135 | |
191f025a | 1136 | (defun isearch-mouse-2 (click) |
e4af1426 | 1137 | "Handle mouse-2 in Isearch mode. |
117132a6 | 1138 | For a click in the echo area, invoke `isearch-yank-x-selection'. |
e4af1426 | 1139 | Otherwise invoke whatever mouse-2 is bound to outside of Isearch." |
191f025a | 1140 | (interactive "e") |
e4af1426 GM |
1141 | (let* ((w (posn-window (event-start click))) |
1142 | (overriding-terminal-local-map nil) | |
1143 | (key (vector (event-basic-type click))) | |
191f025a SM |
1144 | ;; FIXME: `key-binding' should accept an event as argument |
1145 | ;; and do all the overlay/text-properties lookup etc... | |
1146 | (binding (with-current-buffer | |
1147 | (if (window-live-p w) (window-buffer w) (current-buffer)) | |
1148 | (key-binding key)))) | |
117132a6 DL |
1149 | (if (and (window-minibuffer-p w) |
1150 | (not (minibuffer-window-active-p w))) ; in echo area | |
1151 | (isearch-yank-x-selection) | |
cd59ea72 | 1152 | (when (functionp binding) |
191f025a | 1153 | (call-interactively binding))))) |
e4af1426 | 1154 | |
117132a6 | 1155 | |
29e53a0a KF |
1156 | (defun isearch-yank-internal (jumpform) |
1157 | "Pull the text from point to the point reached by JUMPFORM. | |
1158 | JUMPFORM is a lambda expression that takes no arguments and returns a | |
1159 | buffer position, possibly having moved point to that position. For | |
1160 | example, it might move point forward by a word and return point, or it | |
1161 | might return the position of the end of the line." | |
9cf081fa KH |
1162 | (isearch-yank-string |
1163 | (save-excursion | |
1164 | (and (not isearch-forward) isearch-other-end | |
1165 | (goto-char isearch-other-end)) | |
29e53a0a KF |
1166 | (buffer-substring-no-properties (point) (funcall jumpform))))) |
1167 | ||
74820eb5 JL |
1168 | (defun isearch-yank-char-in-minibuffer (&optional arg) |
1169 | "Pull next character from buffer into end of search string in minibuffer." | |
1170 | (interactive "p") | |
1171 | (if (eobp) | |
1172 | (insert | |
1173 | (save-excursion | |
1174 | (set-buffer (cadr (buffer-list))) | |
1175 | (buffer-substring-no-properties | |
1176 | (point) (progn (forward-char arg) (point))))) | |
1177 | (forward-char arg))) | |
1178 | ||
1179 | (defun isearch-yank-char (&optional arg) | |
35904fd3 | 1180 | "Pull next character from buffer into search string." |
74820eb5 JL |
1181 | (interactive "p") |
1182 | (isearch-yank-internal (lambda () (forward-char arg) (point)))) | |
29e53a0a | 1183 | |
868bf43a RS |
1184 | (defun isearch-yank-word-or-char () |
1185 | "Pull next character or word from buffer into search string." | |
1186 | (interactive) | |
21d90805 | 1187 | (isearch-yank-internal |
b48ca14f | 1188 | (lambda () |
21d90805 KF |
1189 | (if (or (= (char-syntax (or (char-after) 0)) ?w) |
1190 | (= (char-syntax (or (char-after (1+ (point))) 0)) ?w)) | |
1191 | (forward-word 1) | |
1192 | (forward-char 1)) (point)))) | |
868bf43a | 1193 | |
29e53a0a KF |
1194 | (defun isearch-yank-word () |
1195 | "Pull next word from buffer into search string." | |
1196 | (interactive) | |
1197 | (isearch-yank-internal (lambda () (forward-word 1) (point)))) | |
8e1cae6d JB |
1198 | |
1199 | (defun isearch-yank-line () | |
1200 | "Pull rest of line from buffer into search string." | |
1201 | (interactive) | |
8fd4d684 | 1202 | (isearch-yank-internal 'line-end-position)) |
8e1cae6d JB |
1203 | |
1204 | ||
1205 | (defun isearch-search-and-update () | |
1206 | ;; Do the search and update the display. | |
191f025a | 1207 | (when (or isearch-success |
35904fd3 JL |
1208 | ;; Unsuccessful regexp search may become successful by |
1209 | ;; addition of characters which make isearch-string valid | |
cd59ea72 SM |
1210 | isearch-regexp |
1211 | ;; If the string was found but was completely invisible, | |
1212 | ;; it might now be partly visible, so try again. | |
1213 | (prog1 isearch-hidden (setq isearch-hidden nil))) | |
8e1cae6d JB |
1214 | ;; In reverse search, adding stuff at |
1215 | ;; the end may cause zero or many more chars to be | |
1216 | ;; matched, in the string following point. | |
1217 | ;; Allow all those possibilities without moving point as | |
1218 | ;; long as the match does not extend past search origin. | |
1219 | (if (and (not isearch-forward) (not isearch-adjusted) | |
1220 | (condition-case () | |
99ae9e9f | 1221 | (let ((case-fold-search isearch-case-fold-search)) |
ec0a2f45 KH |
1222 | (if (and (eq case-fold-search t) search-upper-case) |
1223 | (setq case-fold-search | |
1224 | (isearch-no-upper-case-p isearch-string isearch-regexp))) | |
99ae9e9f KH |
1225 | (looking-at (if isearch-regexp isearch-string |
1226 | (regexp-quote isearch-string)))) | |
8e1cae6d | 1227 | (error nil)) |
bd6a8414 | 1228 | (or isearch-yank-flag |
191f025a | 1229 | (<= (match-end 0) |
bd6a8414 | 1230 | (min isearch-opoint isearch-barrier)))) |
d64b1d96 | 1231 | (progn |
191f025a | 1232 | (setq isearch-success t |
d64b1d96 RS |
1233 | isearch-invalid-regexp nil |
1234 | isearch-within-brackets nil | |
1235 | isearch-other-end (match-end 0)) | |
1236 | (if (and (eq isearch-case-fold-search t) search-upper-case) | |
1237 | (setq isearch-case-fold-search | |
1238 | (isearch-no-upper-case-p isearch-string isearch-regexp)))) | |
8e1cae6d JB |
1239 | ;; Not regexp, not reverse, or no match at point. |
1240 | (if (and isearch-other-end (not isearch-adjusted)) | |
1241 | (goto-char (if isearch-forward isearch-other-end | |
191f025a SM |
1242 | (min isearch-opoint |
1243 | isearch-barrier | |
8e1cae6d JB |
1244 | (1+ isearch-other-end))))) |
1245 | (isearch-search) | |
1246 | )) | |
1247 | (isearch-push-state) | |
1248 | (if isearch-op-fun (funcall isearch-op-fun)) | |
1249 | (isearch-update)) | |
1250 | ||
1251 | ||
29f128f6 RS |
1252 | (defun isearch-{-char () |
1253 | "Handle \{ specially in regexps." | |
1254 | (interactive) | |
1255 | (isearch-*-char t)) | |
1256 | ||
8e1cae6d | 1257 | ;; *, ?, and | chars can make a regexp more liberal. |
08200510 | 1258 | ;; They can make a regexp match sooner or make it succeed instead of failing. |
8e1cae6d JB |
1259 | ;; So go back to place last successful search started |
1260 | ;; or to the last ^S/^R (barrier), whichever is nearer. | |
08200510 | 1261 | ;; + needs no special handling because the string must match at least once. |
8e1cae6d | 1262 | |
29f128f6 RS |
1263 | (defun isearch-*-char (&optional want-backslash) |
1264 | "Handle * and ? specially in regexps. | |
1265 | When WANT-BACKSLASH is non-nil, do special handling for \{." | |
8e1cae6d | 1266 | (interactive) |
191f025a | 1267 | (if isearch-regexp |
bd6a8414 RS |
1268 | (let ((idx (length isearch-string))) |
1269 | (while (and (> idx 0) | |
1270 | (eq (aref isearch-string (1- idx)) ?\\)) | |
1271 | (setq idx (1- idx))) | |
29f128f6 RS |
1272 | ;; * and ? are special when not preceded by \. |
1273 | ;; { is special when it is preceded by \. | |
1274 | (when (= (mod (- (length isearch-string) idx) 2) | |
1275 | (if want-backslash 1 0)) | |
bd6a8414 RS |
1276 | (setq isearch-adjusted t) |
1277 | ;; Get the isearch-other-end from before the last search. | |
1278 | ;; We want to start from there, | |
1279 | ;; so that we don't retreat farther than that. | |
1280 | ;; (car isearch-cmds) is after last search; | |
1281 | ;; (car (cdr isearch-cmds)) is from before it. | |
1282 | (let ((cs (nth 5 (car (cdr isearch-cmds))))) | |
1283 | (setq cs (or cs isearch-barrier)) | |
1284 | (goto-char | |
1285 | (if isearch-forward | |
1286 | (max cs isearch-barrier) | |
1287 | (min cs isearch-barrier))))))) | |
117132a6 | 1288 | (isearch-process-search-char last-command-char)) |
b48ca14f | 1289 | |
8e1cae6d | 1290 | |
8e1cae6d JB |
1291 | (defun isearch-|-char () |
1292 | "If in regexp search, jump to the barrier." | |
1293 | (interactive) | |
1294 | (if isearch-regexp | |
1295 | (progn | |
1296 | (setq isearch-adjusted t) | |
1297 | (goto-char isearch-barrier))) | |
117132a6 | 1298 | (isearch-process-search-char last-command-char)) |
8e1cae6d | 1299 | |
1e491f1b EZ |
1300 | (defun isearch-unread-key-sequence (keylist) |
1301 | "Unread the given key-sequence KEYLIST. | |
1302 | Scroll-bar or mode-line events are processed appropriately." | |
1303 | (cancel-kbd-macro-events) | |
1304 | (apply 'isearch-unread keylist) | |
1305 | ;; If the event was a scroll-bar or mode-line click, the event will have | |
1306 | ;; been prefixed by a symbol such as vertical-scroll-bar. We must remove | |
1307 | ;; it here, because this symbol will be attached to the event again next | |
1308 | ;; time it gets read by read-key-sequence. | |
1309 | ;; | |
1310 | ;; (Old comment from isearch-other-meta-char: "Note that we don't have to | |
1311 | ;; modify the event anymore in 21 because read_key_sequence no longer | |
1312 | ;; modifies events to produce fake prefix keys.") | |
1313 | (if (and (> (length keylist) 1) | |
1314 | (symbolp (car keylist)) | |
1315 | (listp (cadr keylist)) | |
1316 | (not (numberp (posn-point | |
1317 | (event-start (cadr keylist) ))))) | |
1318 | (pop unread-command-events))) | |
1319 | ||
1320 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1321 | ;; scrolling within Isearch mode. Alan Mackenzie (acm@muc.de), 2003/2/24 | |
1322 | ;; | |
1323 | ;; The idea here is that certain vertical scrolling commands (like C-l | |
1324 | ;; `recenter') should be usable WITHIN Isearch mode. For a command to be | |
1325 | ;; suitable, it must NOT alter the buffer, swap to another buffer or frame, | |
1326 | ;; tamper with isearch's state, or move point. It is unacceptable for the | |
1327 | ;; search string to be scrolled out of the current window. If a command | |
1328 | ;; attempts this, we scroll the text back again. | |
1329 | ;; | |
1330 | ;; We implement this feature with a property called `isearch-scroll'. | |
1331 | ;; If a command's symbol has the value t for this property it is a | |
1332 | ;; scrolling command. The feature needs to be enabled by setting the | |
1333 | ;; customizable variable `isearch-allow-scroll' to a non-nil value. | |
1334 | ;; | |
1335 | ;; The universal argument commands (e.g. C-u) in simple.el are marked | |
1336 | ;; as scrolling commands, and isearch.el has been amended to allow | |
1337 | ;; prefix arguments to be passed through to scrolling commands. Thus | |
1338 | ;; M-0 C-l will scroll point to the top of the window. | |
1339 | ;; | |
1340 | ;; Horizontal scrolling commands are currently not catered for. | |
1341 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
1342 | ||
1343 | ;; Set the isearch-scroll property on some standard functions: | |
1344 | ;; Scroll-bar functions: | |
1345 | (if (fboundp 'scroll-bar-toolkit-scroll) | |
1346 | (put 'scroll-bar-toolkit-scroll 'isearch-scroll t)) | |
1347 | (if (fboundp 'mac-handle-scroll-bar-event) | |
1348 | (put 'mac-handle-scroll-bar-event 'isearch-scroll t)) | |
1349 | (if (fboundp 'w32-handle-scroll-bar-event) | |
1350 | (put 'w32-handle-scroll-bar-event 'isearch-scroll t)) | |
1351 | ||
1352 | ;; Commands which scroll the window: | |
1353 | (put 'recenter 'isearch-scroll t) | |
1354 | (put 'reposition-window 'isearch-scroll t) | |
1355 | (put 'scroll-up 'isearch-scroll t) | |
1356 | (put 'scroll-down 'isearch-scroll t) | |
1357 | ||
1358 | ;; Commands which act on the other window | |
1359 | (put 'list-buffers 'isearch-scroll t) | |
1360 | (put 'scroll-other-window 'isearch-scroll t) | |
1361 | (put 'scroll-other-window-down 'isearch-scroll t) | |
1362 | (put 'beginning-of-buffer-other-window 'isearch-scroll t) | |
1363 | (put 'end-of-buffer-other-window 'isearch-scroll t) | |
1364 | ||
1365 | ;; Commands which change the window layout | |
1366 | (put 'delete-other-windows 'isearch-scroll t) | |
1367 | (put 'balance-windows 'isearch-scroll t) | |
1368 | (put 'split-window-vertically 'isearch-scroll t) | |
1369 | (put 'enlarge-window 'isearch-scroll t) | |
1370 | ||
1371 | ;; Universal argument commands | |
1372 | (put 'universal-argument 'isearch-scroll t) | |
1373 | (put 'negative-argument 'isearch-scroll t) | |
1374 | (put 'digit-argument 'isearch-scroll t) | |
1375 | ||
1376 | (defcustom isearch-allow-scroll nil | |
1377 | "If non-nil, scrolling commands are allowed during incremental search." | |
1378 | :type 'boolean | |
1379 | :group 'isearch) | |
1380 | ||
1381 | (defun isearch-string-out-of-window (isearch-point) | |
1382 | "Test whether the search string is currently outside of the window. | |
1383 | Return nil if it's completely visible, or if point is visible, | |
1384 | together with as much of the search string as will fit; the symbol | |
1385 | `above' if we need to scroll the text downwards; the symbol `below', | |
1386 | if upwards." | |
1387 | (let ((w-start (window-start)) | |
1388 | (w-end (window-end nil t)) | |
1389 | (w-L1 (save-excursion (move-to-window-line 1) (point))) | |
1390 | (w-L-1 (save-excursion (move-to-window-line -1) (point))) | |
1391 | start end) ; start and end of search string in buffer | |
1392 | (if isearch-forward | |
1393 | (setq end isearch-point start (or isearch-other-end isearch-point)) | |
1394 | (setq start isearch-point end (or isearch-other-end isearch-point))) | |
1395 | (cond ((or (and (>= start w-start) (<= end w-end)) | |
1396 | (if isearch-forward | |
1397 | (and (>= isearch-point w-L-1) (< isearch-point w-end)) ; point on Line -1 | |
1398 | (and (>= isearch-point w-start) (< isearch-point w-L1)))) ; point on Line 0 | |
1399 | nil) | |
1400 | ((and (< start w-start) | |
1401 | (< isearch-point w-L-1)) | |
1402 | 'above) | |
1403 | (t 'below)))) | |
1404 | ||
1405 | (defun isearch-back-into-window (above isearch-point) | |
1406 | "Scroll the window to bring the search string back into view. | |
1407 | Restore point to ISEARCH-POINT in the process. ABOVE is t when the | |
1408 | search string is above the top of the window, nil when it is beneath | |
1409 | the bottom." | |
1410 | (let (start end) | |
1411 | (if isearch-forward | |
1412 | (setq end isearch-point start (or isearch-other-end isearch-point)) | |
1413 | (setq start isearch-point end (or isearch-other-end isearch-point))) | |
1414 | (if above | |
1415 | (progn | |
1416 | (goto-char start) | |
1417 | (recenter 0) | |
1418 | (when (>= isearch-point (window-end nil t)) | |
1419 | (goto-char isearch-point) | |
1420 | (recenter -1))) | |
1421 | (goto-char end) | |
1422 | (recenter -1) | |
1423 | (when (< isearch-point (window-start)) | |
1424 | (goto-char isearch-point) | |
1425 | (recenter 0)))) | |
1426 | (goto-char isearch-point)) | |
1427 | ||
1428 | (defun isearch-reread-key-sequence-naturally (keylist) | |
1429 | "Reread key sequence KEYLIST with Isearch mode's keymap deactivated. | |
1430 | Return the key sequence as a string/vector." | |
1431 | (isearch-unread-key-sequence keylist) | |
1432 | (let (overriding-terminal-local-map) | |
1433 | (read-key-sequence nil))) ; This will go through function-key-map, if nec. | |
1434 | ||
1435 | (defun isearch-lookup-scroll-key (key-seq) | |
1436 | "If KEY-SEQ is bound to a scrolling command, return it as a symbol. | |
1437 | Otherwise return nil." | |
1438 | (let* ((overriding-terminal-local-map nil) | |
1439 | (binding (key-binding key-seq))) | |
1440 | (and binding (symbolp binding) (commandp binding) | |
1441 | (eq (get binding 'isearch-scroll) t) | |
1442 | binding))) | |
8e1cae6d | 1443 | |
b457cc3b | 1444 | (defalias 'isearch-other-control-char 'isearch-other-meta-char) |
8e1cae6d | 1445 | |
1e491f1b EZ |
1446 | (defun isearch-other-meta-char (&optional arg) |
1447 | "Process a miscellaneous key sequence in Isearch mode. | |
1448 | ||
1449 | Try to convert the current key-sequence to something usable in Isearch | |
1450 | mode, either by converting it with `function-key-map', downcasing a | |
1451 | key with C-<upper case>, or finding a \"scrolling command\" bound to | |
1452 | it. \(In the last case, we may have to read more events.) If so, | |
1453 | either unread the converted sequence or execute the command. | |
1454 | ||
1455 | Otherwise, if `search-exit-option' is non-nil (the default) unread the | |
1456 | key-sequence and exit the search normally. If it is the symbol | |
1457 | `edit', the search string is edited in the minibuffer and the meta | |
1458 | character is unread so that it applies to editing the string. | |
1459 | ||
1460 | ARG is the prefix argument. It will be transmitted through to the | |
1461 | scrolling command or to the command whose key-sequence exits | |
1462 | Isearch mode." | |
1463 | (interactive "P") | |
1464 | (let* ((key (if current-prefix-arg ; not nec the same as ARG | |
1465 | (substring (this-command-keys) universal-argument-num-events) | |
1466 | (this-command-keys))) | |
c6431f12 | 1467 | (main-event (aref key 0)) |
1e491f1b EZ |
1468 | (keylist (listify-key-sequence key)) |
1469 | scroll-command isearch-point) | |
24b5caec | 1470 | (cond ((and (= (length key) 1) |
d94eb6eb | 1471 | (let ((lookup (lookup-key function-key-map key))) |
3f866b53 KH |
1472 | (not (or (null lookup) (integerp lookup) |
1473 | (keymapp lookup))))) | |
24b5caec RS |
1474 | ;; Handle a function key that translates into something else. |
1475 | ;; If the key has a global definition too, | |
1476 | ;; exit and unread the key itself, so its global definition runs. | |
1477 | ;; Otherwise, unread the translation, | |
1478 | ;; so that the translated key takes effect within isearch. | |
d94eb6eb | 1479 | (cancel-kbd-macro-events) |
24b5caec | 1480 | (if (lookup-key global-map key) |
02b2f510 | 1481 | (progn |
24b5caec RS |
1482 | (isearch-done) |
1483 | (apply 'isearch-unread keylist)) | |
a5cc922e KH |
1484 | (setq keylist |
1485 | (listify-key-sequence (lookup-key function-key-map key))) | |
1486 | (while keylist | |
1487 | (setq key (car keylist)) | |
1488 | ;; If KEY is a printing char, we handle it here | |
1489 | ;; directly to avoid the input method and keyboard | |
1490 | ;; coding system translating it. | |
1491 | (if (and (integerp key) | |
ed5c183b | 1492 | (>= key ?\ ) (/= key 127) (< key 256)) |
a5cc922e KH |
1493 | (progn |
1494 | (isearch-process-search-char key) | |
1495 | (setq keylist (cdr keylist))) | |
1496 | ;; As the remaining keys in KEYLIST can't be handled | |
1497 | ;; here, we must reread them. | |
1498 | (apply 'isearch-unread keylist) | |
1499 | (setq keylist nil))))) | |
24b5caec | 1500 | ( |
c6431f12 KH |
1501 | ;; Handle an undefined shifted control character |
1502 | ;; by downshifting it if that makes it defined. | |
1503 | ;; (As read-key-sequence would normally do, | |
1504 | ;; if we didn't have a default definition.) | |
1505 | (let ((mods (event-modifiers main-event))) | |
1506 | (and (integerp main-event) | |
1507 | (memq 'shift mods) | |
1508 | (memq 'control mods) | |
1509 | (lookup-key isearch-mode-map | |
1510 | (let ((copy (copy-sequence key))) | |
1511 | (aset copy 0 | |
1512 | (- main-event (- ?\C-\S-a ?\C-a))) | |
1513 | copy) | |
1514 | nil))) | |
1515 | (setcar keylist (- main-event (- ?\C-\S-a ?\C-a))) | |
d94eb6eb | 1516 | (cancel-kbd-macro-events) |
c6431f12 KH |
1517 | (apply 'isearch-unread keylist)) |
1518 | ((eq search-exit-option 'edit) | |
1519 | (apply 'isearch-unread keylist) | |
1520 | (isearch-edit-string)) | |
1e491f1b EZ |
1521 | ;; Handle a scrolling function. |
1522 | ((and isearch-allow-scroll | |
1523 | (progn (setq key (isearch-reread-key-sequence-naturally keylist)) | |
1524 | (setq keylist (listify-key-sequence key)) | |
1525 | (setq main-event (aref key 0)) | |
1526 | (setq scroll-command (isearch-lookup-scroll-key key)))) | |
1527 | ;; From this point onwards, KEY, KEYLIST and MAIN-EVENT hold a | |
1528 | ;; complete key sequence, possibly as modified by function-key-map, | |
1529 | ;; not merely the one or two event fragment which invoked | |
1530 | ;; isearch-other-meta-char in the first place. | |
1531 | (setq isearch-point (point)) | |
1532 | (setq prefix-arg arg) | |
1533 | (command-execute scroll-command) | |
1534 | (let ((ab-bel (isearch-string-out-of-window isearch-point))) | |
1535 | (if ab-bel | |
35904fd3 JL |
1536 | (isearch-back-into-window (eq ab-bel 'above) isearch-point) |
1537 | (or (eq (point) isearch-point) | |
1538 | (goto-char isearch-point)))) | |
1e491f1b | 1539 | (isearch-update)) |
c6431f12 KH |
1540 | (search-exit-option |
1541 | (let (window) | |
1e491f1b EZ |
1542 | (isearch-unread-key-sequence keylist) |
1543 | (setq main-event (car unread-command-events)) | |
3fb01f36 | 1544 | |
346f18dc GM |
1545 | ;; If we got a mouse click event, that event contains the |
1546 | ;; window clicked on. maybe it was read with the buffer | |
c6431f12 KH |
1547 | ;; it was clicked on. If so, that buffer, not the current one, |
1548 | ;; is in isearch mode. So end the search in that buffer. | |
346f18dc GM |
1549 | |
1550 | ;; ??? I have no idea what this if checks for, but it's | |
1551 | ;; obviously wrong for the case that a down-mouse event | |
1552 | ;; on another window invokes this function. The event | |
1553 | ;; will contain the window clicked on and that window's | |
b48ca14f | 1554 | ;; buffer is certainly not always in Isearch mode. |
346f18dc GM |
1555 | ;; |
1556 | ;; Leave the code in, but check for current buffer not | |
1557 | ;; being in Isearch mode for now, until someone tells | |
1558 | ;; what it's really supposed to do. | |
1559 | ;; | |
1560 | ;; --gerd 2001-08-10. | |
1561 | ||
1562 | (if (and (not isearch-mode) | |
1563 | (listp main-event) | |
c6431f12 | 1564 | (setq window (posn-window (event-start main-event))) |
4fd017e7 RS |
1565 | (windowp window) |
1566 | (or (> (minibuffer-depth) 0) | |
1567 | (not (window-minibuffer-p window)))) | |
c6431f12 KH |
1568 | (save-excursion |
1569 | (set-buffer (window-buffer window)) | |
0352b205 RS |
1570 | (isearch-done) |
1571 | (isearch-clean-overlays)) | |
1572 | (isearch-done) | |
1e491f1b EZ |
1573 | (isearch-clean-overlays) |
1574 | (setq prefix-arg arg)))) | |
1575 | (t;; otherwise nil | |
c6431f12 | 1576 | (isearch-process-search-string key key))))) |
8e1cae6d | 1577 | |
8e1cae6d JB |
1578 | (defun isearch-quote-char () |
1579 | "Quote special characters for incremental search." | |
1580 | (interactive) | |
8bc15fa8 | 1581 | (let ((char (read-quoted-char (isearch-message t)))) |
3c75023f | 1582 | ;; Assume character codes 0200 - 0377 stand for characters in some |
c20d35d5 KH |
1583 | ;; single-byte character set, and convert them to Emacs |
1584 | ;; characters. | |
8bc15fa8 | 1585 | (and enable-multibyte-characters |
3c75023f | 1586 | (>= char ?\200) |
8bc15fa8 | 1587 | (<= char ?\377) |
c20d35d5 | 1588 | (setq char (unibyte-char-to-multibyte char))) |
8bc15fa8 | 1589 | (isearch-process-search-char char))) |
8e1cae6d | 1590 | |
8e1cae6d JB |
1591 | (defun isearch-return-char () |
1592 | "Convert return into newline for incremental search. | |
1593 | Obsolete." | |
1594 | (interactive) | |
1595 | (isearch-process-search-char ?\n)) | |
1596 | ||
8e1cae6d | 1597 | (defun isearch-printing-char () |
b68c164d | 1598 | "Add this ordinary printing character to the search string and search." |
8e1cae6d | 1599 | (interactive) |
117132a6 | 1600 | (let ((char last-command-char)) |
45b94eb2 KH |
1601 | (if (= char ?\S-\ ) |
1602 | (setq char ?\ )) | |
af56433d RS |
1603 | (if (and enable-multibyte-characters |
1604 | (>= char ?\200) | |
1605 | (<= char ?\377)) | |
3c487103 KH |
1606 | (if (keyboard-coding-system) |
1607 | (isearch-process-search-multibyte-characters char) | |
1608 | (isearch-process-search-char (unibyte-char-to-multibyte char))) | |
af56433d RS |
1609 | (if current-input-method |
1610 | (isearch-process-search-multibyte-characters char) | |
1611 | (isearch-process-search-char char))))) | |
8e1cae6d JB |
1612 | |
1613 | (defun isearch-whitespace-chars () | |
08200510 | 1614 | "Match all whitespace chars, if in regexp mode. |
fad241d3 | 1615 | If you want to search for just a space, type \\<isearch-mode-map>\\[isearch-quote-char] SPC." |
8e1cae6d | 1616 | (interactive) |
b48ca14f | 1617 | (if isearch-regexp |
9da6682f RS |
1618 | (if (and search-whitespace-regexp (not isearch-within-brackets) |
1619 | (not isearch-invalid-regexp)) | |
08200510 RS |
1620 | (isearch-process-search-string search-whitespace-regexp " ") |
1621 | (isearch-printing-char)) | |
1622 | (progn | |
eb8c3be9 | 1623 | ;; This way of doing word search doesn't correctly extend current search. |
08200510 RS |
1624 | ;; (setq isearch-word t) |
1625 | ;; (setq isearch-adjusted t) | |
1626 | ;; (goto-char isearch-barrier) | |
1627 | (isearch-printing-char)))) | |
8e1cae6d JB |
1628 | |
1629 | (defun isearch-process-search-char (char) | |
1630 | ;; Append the char to the search string, update the message and re-search. | |
191f025a SM |
1631 | (isearch-process-search-string |
1632 | (char-to-string char) | |
8f3c1d76 | 1633 | (if (>= char ?\200) |
01a6ef79 RS |
1634 | (char-to-string char) |
1635 | (isearch-text-char-description char)))) | |
8e1cae6d JB |
1636 | |
1637 | (defun isearch-process-search-string (string message) | |
1638 | (setq isearch-string (concat isearch-string string) | |
1639 | isearch-message (concat isearch-message message)) | |
1640 | (isearch-search-and-update)) | |
1641 | ||
1642 | \f | |
8e1cae6d JB |
1643 | ;; Search Ring |
1644 | ||
08200510 RS |
1645 | (defun isearch-ring-adjust1 (advance) |
1646 | ;; Helper for isearch-ring-adjust | |
1647 | (let* ((ring (if isearch-regexp regexp-search-ring search-ring)) | |
8e1cae6d JB |
1648 | (length (length ring)) |
1649 | (yank-pointer-name (if isearch-regexp | |
08200510 | 1650 | 'regexp-search-ring-yank-pointer |
8e1cae6d JB |
1651 | 'search-ring-yank-pointer)) |
1652 | (yank-pointer (eval yank-pointer-name))) | |
1653 | (if (zerop length) | |
1654 | () | |
1655 | (set yank-pointer-name | |
1656 | (setq yank-pointer | |
ffbc30b2 PE |
1657 | (mod (+ (or yank-pointer 0) |
1658 | (if advance -1 1)) | |
1659 | length))) | |
a5dcf63f | 1660 | (setq isearch-string (nth yank-pointer ring) |
08200510 RS |
1661 | isearch-message (mapconcat 'isearch-text-char-description |
1662 | isearch-string ""))))) | |
1663 | ||
1664 | (defun isearch-ring-adjust (advance) | |
1665 | ;; Helper for isearch-ring-advance and isearch-ring-retreat | |
08200510 | 1666 | (isearch-ring-adjust1 advance) |
08200510 RS |
1667 | (if search-ring-update |
1668 | (progn | |
1669 | (isearch-search) | |
1670 | (isearch-update)) | |
1671 | (isearch-edit-string) | |
2ff20b7e RS |
1672 | ) |
1673 | (isearch-push-state)) | |
8e1cae6d JB |
1674 | |
1675 | (defun isearch-ring-advance () | |
1676 | "Advance to the next search string in the ring." | |
08200510 | 1677 | ;; This could be more general to handle a prefix arg, but who would use it. |
8e1cae6d JB |
1678 | (interactive) |
1679 | (isearch-ring-adjust 'advance)) | |
1680 | ||
1681 | (defun isearch-ring-retreat () | |
1682 | "Retreat to the previous search string in the ring." | |
1683 | (interactive) | |
1684 | (isearch-ring-adjust nil)) | |
1685 | ||
a5dcf63f | 1686 | (defun isearch-ring-advance-edit (n) |
117132a6 DL |
1687 | "Insert the next element of the search history into the minibuffer. |
1688 | With prefix arg N, insert the Nth element." | |
a5dcf63f RS |
1689 | (interactive "p") |
1690 | (let* ((yank-pointer-name (if isearch-regexp | |
1691 | 'regexp-search-ring-yank-pointer | |
1692 | 'search-ring-yank-pointer)) | |
1693 | (yank-pointer (eval yank-pointer-name)) | |
1694 | (ring (if isearch-regexp regexp-search-ring search-ring)) | |
1695 | (length (length ring))) | |
1696 | (if (zerop length) | |
1697 | () | |
1698 | (set yank-pointer-name | |
1699 | (setq yank-pointer | |
ffbc30b2 PE |
1700 | (mod (- (or yank-pointer 0) n) |
1701 | length))) | |
a5dcf63f | 1702 | |
b7b66466 | 1703 | (delete-field) |
35a4d143 | 1704 | (insert (nth yank-pointer ring)) |
49c13105 | 1705 | (goto-char (point-max))))) |
a5dcf63f RS |
1706 | |
1707 | (defun isearch-ring-retreat-edit (n) | |
117132a6 DL |
1708 | "Insert the previous element of the search history into the minibuffer. |
1709 | With prefix arg N, insert the Nth element." | |
a5dcf63f RS |
1710 | (interactive "p") |
1711 | (isearch-ring-advance-edit (- n))) | |
1712 | ||
1713 | ;;(defun isearch-ring-adjust-edit (advance) | |
1714 | ;; "Use the next or previous search string in the ring while in minibuffer." | |
1715 | ;; (isearch-ring-adjust1 advance) | |
1716 | ;; (erase-buffer) | |
1717 | ;; (insert isearch-string)) | |
1718 | ||
1719 | ;;(defun isearch-ring-advance-edit () | |
1720 | ;; (interactive) | |
1721 | ;; (isearch-ring-adjust-edit 'advance)) | |
1722 | ||
1723 | ;;(defun isearch-ring-retreat-edit () | |
1724 | ;; "Retreat to the previous search string in the ring while in the minibuffer." | |
1725 | ;; (interactive) | |
1726 | ;; (isearch-ring-adjust-edit nil)) | |
08200510 RS |
1727 | |
1728 | ||
1729 | (defun isearch-complete1 () | |
1730 | ;; Helper for isearch-complete and isearch-complete-edit | |
1731 | ;; Return t if completion OK, nil if no completion exists. | |
1732 | (let* ((ring (if isearch-regexp regexp-search-ring search-ring)) | |
08200510 | 1733 | (completion-ignore-case case-fold-search) |
c789e608 | 1734 | (completion (try-completion isearch-string ring))) |
08200510 RS |
1735 | (cond |
1736 | ((eq completion t) | |
1737 | ;; isearch-string stays the same | |
1738 | t) | |
1739 | ((or completion ; not nil, must be a string | |
b7852303 | 1740 | (= 0 (length isearch-string))) ; shouldn't have to say this |
08200510 | 1741 | (if (equal completion isearch-string) ;; no extension? |
36bcac3f RS |
1742 | (progn |
1743 | (if completion-auto-help | |
1744 | (with-output-to-temp-buffer "*Isearch completions*" | |
b48ca14f | 1745 | (display-completion-list |
c789e608 | 1746 | (all-completions isearch-string ring)))) |
36bcac3f RS |
1747 | t) |
1748 | (and completion | |
1749 | (setq isearch-string completion)))) | |
08200510 RS |
1750 | (t |
1751 | (message "No completion") ; waits a second if in minibuffer | |
1752 | nil)))) | |
1753 | ||
1754 | (defun isearch-complete () | |
1755 | "Complete the search string from the strings on the search ring. | |
1756 | The completed string is then editable in the minibuffer. | |
1757 | If there is no completion possible, say so and continue searching." | |
1758 | (interactive) | |
1759 | (if (isearch-complete1) | |
3ae4c509 RS |
1760 | (progn (setq isearch-message |
1761 | (mapconcat 'isearch-text-char-description | |
1762 | isearch-string "")) | |
1763 | (isearch-edit-string)) | |
08200510 RS |
1764 | ;; else |
1765 | (sit-for 1) | |
1766 | (isearch-update))) | |
8e1cae6d | 1767 | |
08200510 RS |
1768 | (defun isearch-complete-edit () |
1769 | "Same as `isearch-complete' except in the minibuffer." | |
1770 | (interactive) | |
c789e608 | 1771 | (setq isearch-string (field-string)) |
08200510 | 1772 | (if (isearch-complete1) |
8e1cae6d | 1773 | (progn |
b7b66466 | 1774 | (delete-field) |
08200510 | 1775 | (insert isearch-string)))) |
8e1cae6d JB |
1776 | |
1777 | \f | |
8e1cae6d | 1778 | ;; The search status stack (and isearch window-local variables, not used). |
08200510 | 1779 | ;; Need a structure for this. |
8e1cae6d JB |
1780 | |
1781 | (defun isearch-top-state () | |
8e1cae6d JB |
1782 | (let ((cmd (car isearch-cmds))) |
1783 | (setq isearch-string (car cmd) | |
1784 | isearch-message (car (cdr cmd)) | |
1785 | isearch-success (nth 3 cmd) | |
1786 | isearch-forward (nth 4 cmd) | |
1787 | isearch-other-end (nth 5 cmd) | |
08200510 RS |
1788 | isearch-word (nth 6 cmd) |
1789 | isearch-invalid-regexp (nth 7 cmd) | |
1790 | isearch-wrapped (nth 8 cmd) | |
c5f6b356 | 1791 | isearch-barrier (nth 9 cmd) |
f551b97d RS |
1792 | isearch-within-brackets (nth 10 cmd) |
1793 | isearch-case-fold-search (nth 11 cmd)) | |
8e1cae6d JB |
1794 | (goto-char (car (cdr (cdr cmd)))))) |
1795 | ||
1796 | (defun isearch-pop-state () | |
8e1cae6d | 1797 | (setq isearch-cmds (cdr isearch-cmds)) |
1f4139d5 | 1798 | (isearch-top-state)) |
8e1cae6d JB |
1799 | |
1800 | (defun isearch-push-state () | |
b48ca14f | 1801 | (setq isearch-cmds |
8e1cae6d | 1802 | (cons (list isearch-string isearch-message (point) |
b48ca14f | 1803 | isearch-success isearch-forward isearch-other-end |
08200510 | 1804 | isearch-word |
c5f6b356 | 1805 | isearch-invalid-regexp isearch-wrapped isearch-barrier |
f551b97d | 1806 | isearch-within-brackets isearch-case-fold-search) |
8e1cae6d JB |
1807 | isearch-cmds))) |
1808 | ||
8e1cae6d | 1809 | \f |
8e1cae6d JB |
1810 | ;; Message string |
1811 | ||
1812 | (defun isearch-message (&optional c-q-hack ellipsis) | |
1813 | ;; Generate and print the message string. | |
1814 | (let ((cursor-in-echo-area ellipsis) | |
1815 | (m (concat | |
08200510 | 1816 | (isearch-message-prefix c-q-hack ellipsis isearch-nonincremental) |
512bfd85 RS |
1817 | (if (and (not isearch-success) |
1818 | (string-match " +$" isearch-message)) | |
1819 | (concat | |
1820 | (substring isearch-message 0 (match-beginning 0)) | |
1821 | (propertize (substring isearch-message (match-beginning 0)) | |
1822 | 'face 'trailing-whitespace)) | |
1823 | isearch-message) | |
8e1cae6d JB |
1824 | (isearch-message-suffix c-q-hack ellipsis) |
1825 | ))) | |
a56687f1 KH |
1826 | (if c-q-hack |
1827 | m | |
1828 | (let ((message-log-max nil)) | |
1829 | (message "%s" m))))) | |
8e1cae6d | 1830 | |
08200510 | 1831 | (defun isearch-message-prefix (&optional c-q-hack ellipsis nonincremental) |
8e1cae6d JB |
1832 | ;; If about to search, and previous search regexp was invalid, |
1833 | ;; check that it still is. If it is valid now, | |
1834 | ;; let the message we display while searching say that it is valid. | |
1835 | (and isearch-invalid-regexp ellipsis | |
1836 | (condition-case () | |
1837 | (progn (re-search-forward isearch-string (point) t) | |
8eb40e74 KH |
1838 | (setq isearch-invalid-regexp nil |
1839 | isearch-within-brackets nil)) | |
8e1cae6d JB |
1840 | (error nil))) |
1841 | ;; If currently failing, display no ellipsis. | |
1842 | (or isearch-success (setq ellipsis nil)) | |
1843 | (let ((m (concat (if isearch-success "" "failing ") | |
7badea30 RS |
1844 | (if (and isearch-wrapped |
1845 | (if isearch-forward | |
1846 | (> (point) isearch-opoint) | |
1847 | (< (point) isearch-opoint))) | |
1848 | "over") | |
8e1cae6d | 1849 | (if isearch-wrapped "wrapped ") |
08200510 | 1850 | (if isearch-word "word " "") |
8e1cae6d | 1851 | (if isearch-regexp "regexp " "") |
08200510 | 1852 | (if nonincremental "search" "I-search") |
f46d5091 | 1853 | (if isearch-forward "" " backward") |
5b56d4e4 KH |
1854 | (if current-input-method |
1855 | (concat " [" current-input-method-title "]: ") | |
f46d5091 | 1856 | ": ") |
8e1cae6d | 1857 | ))) |
360e0dd5 RS |
1858 | (propertize (concat (upcase (substring m 0 1)) (substring m 1)) |
1859 | 'face 'minibuffer-prompt))) | |
8e1cae6d JB |
1860 | |
1861 | (defun isearch-message-suffix (&optional c-q-hack ellipsis) | |
1862 | (concat (if c-q-hack "^Q" "") | |
1863 | (if isearch-invalid-regexp | |
1864 | (concat " [" isearch-invalid-regexp "]") | |
1865 | ""))) | |
1866 | ||
1867 | \f | |
191f025a SM |
1868 | ;; Searching |
1869 | ||
512bfd85 RS |
1870 | (defvar isearch-search-fun-function nil |
1871 | "Override `isearch-search-fun'. | |
1872 | This function should return the search function for isearch to use. | |
1873 | It will call this function with three arguments | |
1874 | as if it were `search-forward'.") | |
191f025a SM |
1875 | |
1876 | (defun isearch-search-fun () | |
1877 | "Return the function to use for the search. | |
1878 | Can be changed via `isearch-search-fun-function' for special needs." | |
1879 | (if isearch-search-fun-function | |
1880 | (funcall isearch-search-fun-function) | |
1881 | (cond | |
1882 | (isearch-word | |
1883 | (if isearch-forward 'word-search-forward 'word-search-backward)) | |
1884 | (isearch-regexp | |
1885 | (if isearch-forward 're-search-forward 're-search-backward)) | |
1886 | (t | |
1887 | (if isearch-forward 'search-forward 'search-backward))))) | |
8e1cae6d JB |
1888 | |
1889 | (defun isearch-search () | |
1890 | ;; Do the search with the current search string. | |
1891 | (isearch-message nil t) | |
4453091d | 1892 | (if (and (eq isearch-case-fold-search t) search-upper-case) |
b78559b0 RS |
1893 | (setq isearch-case-fold-search |
1894 | (isearch-no-upper-case-p isearch-string isearch-regexp))) | |
8e1cae6d | 1895 | (condition-case lossage |
79c7a4fa RS |
1896 | (let ((inhibit-point-motion-hooks search-invisible) |
1897 | (inhibit-quit nil) | |
86bfaffe RS |
1898 | (case-fold-search isearch-case-fold-search) |
1899 | (retry t)) | |
8e1cae6d | 1900 | (if isearch-regexp (setq isearch-invalid-regexp nil)) |
c5f6b356 | 1901 | (setq isearch-within-brackets nil) |
86bfaffe RS |
1902 | (while retry |
1903 | (setq isearch-success | |
1904 | (funcall | |
191f025a | 1905 | (isearch-search-fun) |
86bfaffe RS |
1906 | isearch-string nil t)) |
1907 | ;; Clear RETRY unless we matched some invisible text | |
1908 | ;; and we aren't supposed to do that. | |
0352b205 | 1909 | (if (or (eq search-invisible t) |
86bfaffe RS |
1910 | (not isearch-success) |
1911 | (bobp) (eobp) | |
1912 | (= (match-beginning 0) (match-end 0)) | |
1913 | (not (isearch-range-invisible | |
1914 | (match-beginning 0) (match-end 0)))) | |
1915 | (setq retry nil))) | |
99ae9e9f | 1916 | (setq isearch-just-started nil) |
8e1cae6d JB |
1917 | (if isearch-success |
1918 | (setq isearch-other-end | |
1919 | (if isearch-forward (match-beginning 0) (match-end 0))))) | |
1920 | ||
d32696d4 | 1921 | (quit (isearch-unread ?\C-g) |
8e1cae6d JB |
1922 | (setq isearch-success nil)) |
1923 | ||
191f025a | 1924 | (invalid-regexp |
8e1cae6d | 1925 | (setq isearch-invalid-regexp (car (cdr lossage))) |
c5f6b356 RS |
1926 | (setq isearch-within-brackets (string-match "\\`Unmatched \\[" |
1927 | isearch-invalid-regexp)) | |
8e1cae6d JB |
1928 | (if (string-match |
1929 | "\\`Premature \\|\\`Unmatched \\|\\`Invalid " | |
1930 | isearch-invalid-regexp) | |
f1c03125 RS |
1931 | (setq isearch-invalid-regexp "incomplete input"))) |
1932 | (error | |
c982ab21 | 1933 | ;; stack overflow in regexp search. |
c5348233 | 1934 | (setq isearch-invalid-regexp (format "%s" lossage)))) |
8e1cae6d JB |
1935 | |
1936 | (if isearch-success | |
1937 | nil | |
1938 | ;; Ding if failed this time after succeeding last time. | |
1939 | (and (nth 3 (car isearch-cmds)) | |
1940 | (ding)) | |
1941 | (goto-char (nth 2 (car isearch-cmds))))) | |
1942 | ||
0352b205 | 1943 | |
191f025a | 1944 | ;; Called when opening an overlay, and we are still in isearch. |
0352b205 | 1945 | (defun isearch-open-overlay-temporary (ov) |
b48ca14f | 1946 | (if (not (null (overlay-get ov 'isearch-open-invisible-temporary))) |
0352b205 RS |
1947 | ;; Some modes would want to open the overlays temporary during |
1948 | ;; isearch in their own way, they should set the | |
1949 | ;; `isearch-open-invisible-temporary' to a function doing this. | |
1950 | (funcall (overlay-get ov 'isearch-open-invisible-temporary) ov nil) | |
1951 | ;; Store the values for the `invisible' and `intangible' | |
1952 | ;; properties, and then set them to nil. This way the text hidden | |
1953 | ;; by this overlay becomes visible. | |
1954 | ||
380866a2 | 1955 | ;; Do we really need to set the `intangible' property to t? Can we |
0352b205 RS |
1956 | ;; have the point inside an overlay with an `intangible' property? |
1957 | ;; In 19.34 this does not exist so I cannot test it. | |
1958 | (overlay-put ov 'isearch-invisible (overlay-get ov 'invisible)) | |
1959 | (overlay-put ov 'isearch-intangible (overlay-get ov 'intangible)) | |
1960 | (overlay-put ov 'invisible nil) | |
1961 | (overlay-put ov 'intangible nil))) | |
1962 | ||
1963 | ||
191f025a SM |
1964 | ;; This is called at the end of isearch. It will open the overlays |
1965 | ;; that contain the latest match. Obviously in case of a C-g the | |
1966 | ;; point returns to the original location which surely is not contain | |
1967 | ;; in any of these overlays, se we are safe in this case too. | |
0352b205 | 1968 | (defun isearch-open-necessary-overlays (ov) |
191f025a | 1969 | (let ((inside-overlay (and (> (point) (overlay-start ov)) |
0352b205 RS |
1970 | (< (point) (overlay-end ov)))) |
1971 | ;; If this exists it means that the overlay was opened using | |
1972 | ;; this function, not by us tweaking the overlay properties. | |
1973 | (fct-temp (overlay-get ov 'isearch-open-invisible-temporary))) | |
1974 | (when (or inside-overlay (not fct-temp)) | |
1975 | ;; restore the values for the `invisible' and `intangible' | |
1976 | ;; properties | |
1977 | (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible)) | |
1978 | (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible)) | |
1979 | (overlay-put ov 'isearch-invisible nil) | |
1980 | (overlay-put ov 'isearch-intangible nil)) | |
1981 | (if inside-overlay | |
1982 | (funcall (overlay-get ov 'isearch-open-invisible) ov) | |
1983 | (if fct-temp | |
1984 | (funcall fct-temp ov t))))) | |
1985 | ||
191f025a SM |
1986 | ;; This is called when exiting isearch. It closes the temporary |
1987 | ;; opened overlays, except the ones that contain the latest match. | |
0352b205 RS |
1988 | (defun isearch-clean-overlays () |
1989 | (when isearch-opened-overlays | |
02b2f510 | 1990 | (mapc 'isearch-open-necessary-overlays isearch-opened-overlays) |
0352b205 RS |
1991 | (setq isearch-opened-overlays nil))) |
1992 | ||
fc0eccfc GM |
1993 | |
1994 | (defun isearch-intersects-p (start0 end0 start1 end1) | |
1995 | "Return t if regions START0..END0 and START1..END1 intersect." | |
eaa493df GM |
1996 | (or (and (>= start0 start1) (< start0 end1)) |
1997 | (and (> end0 start1) (<= end0 end1)) | |
1998 | (and (>= start1 start0) (< start1 end0)) | |
1999 | (and (> end1 start0) (<= end1 end0)))) | |
fc0eccfc GM |
2000 | |
2001 | ||
191f025a SM |
2002 | ;; Verify if the current match is outside of each element of |
2003 | ;; `isearch-opened-overlays', if so close that overlay. | |
fc0eccfc GM |
2004 | |
2005 | (defun isearch-close-unnecessary-overlays (begin end) | |
2006 | (let ((overlays isearch-opened-overlays)) | |
0352b205 | 2007 | (setq isearch-opened-overlays nil) |
fc0eccfc GM |
2008 | (dolist (ov overlays) |
2009 | (if (isearch-intersects-p begin end (overlay-start ov) (overlay-end ov)) | |
2010 | (push ov isearch-opened-overlays) | |
2011 | (let ((fct-temp (overlay-get ov 'isearch-open-invisible-temporary))) | |
2012 | (if fct-temp | |
2013 | ;; If this exists it means that the overlay was opened | |
2014 | ;; using this function, not by us tweaking the overlay | |
2015 | ;; properties. | |
2016 | (funcall fct-temp ov t) | |
2017 | (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible)) | |
2018 | (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible)) | |
2019 | (overlay-put ov 'isearch-invisible nil) | |
2020 | (overlay-put ov 'isearch-intangible nil))))))) | |
2021 | ||
0352b205 | 2022 | |
86bfaffe | 2023 | (defun isearch-range-invisible (beg end) |
79c7a4fa | 2024 | "Return t if all the text from BEG to END is invisible." |
cd59ea72 SM |
2025 | (when (/= beg end) |
2026 | ;; Check that invisibility runs up to END. | |
2027 | (save-excursion | |
2028 | (goto-char beg) | |
2029 | (let (;; can-be-opened keeps track if we can open some overlays. | |
2030 | (can-be-opened (eq search-invisible 'open)) | |
2031 | ;; the list of overlays that could be opened | |
2032 | (crt-overlays nil)) | |
2033 | (when (and can-be-opened isearch-hide-immediately) | |
2034 | (isearch-close-unnecessary-overlays beg end)) | |
2035 | ;; If the following character is currently invisible, | |
2036 | ;; skip all characters with that same `invisible' property value. | |
2037 | ;; Do that over and over. | |
2038 | (while (and (< (point) end) | |
2039 | (let ((prop | |
2040 | (get-char-property (point) 'invisible))) | |
2041 | (if (eq buffer-invisibility-spec t) | |
2042 | prop | |
2043 | (or (memq prop buffer-invisibility-spec) | |
2044 | (assq prop buffer-invisibility-spec))))) | |
2045 | (if (get-text-property (point) 'invisible) | |
2046 | (progn | |
2047 | (goto-char (next-single-property-change (point) 'invisible | |
2048 | nil end)) | |
2049 | ;; if text is hidden by an `invisible' text property | |
2050 | ;; we cannot open it at all. | |
2051 | (setq can-be-opened nil)) | |
2052 | (when can-be-opened | |
2053 | (let ((overlays (overlays-at (point))) | |
2054 | ov-list | |
2055 | o | |
2056 | invis-prop) | |
2057 | (while overlays | |
2058 | (setq o (car overlays) | |
2059 | invis-prop (overlay-get o 'invisible)) | |
2060 | (if (if (eq buffer-invisibility-spec t) | |
2061 | invis-prop | |
2062 | (or (memq invis-prop buffer-invisibility-spec) | |
2063 | (assq invis-prop buffer-invisibility-spec))) | |
2064 | (if (overlay-get o 'isearch-open-invisible) | |
2065 | (setq ov-list (cons o ov-list)) | |
2066 | ;; We found one overlay that cannot be | |
2067 | ;; opened, that means the whole chunk | |
2068 | ;; cannot be opened. | |
2069 | (setq can-be-opened nil))) | |
2070 | (setq overlays (cdr overlays))) | |
2071 | (if can-be-opened | |
2072 | ;; It makes sense to append to the open | |
2073 | ;; overlays list only if we know that this is | |
2074 | ;; t. | |
2075 | (setq crt-overlays (append ov-list crt-overlays))))) | |
2076 | (goto-char (next-overlay-change (point))))) | |
2077 | ;; See if invisibility reaches up thru END. | |
2078 | (if (>= (point) end) | |
2079 | (if (and can-be-opened (consp crt-overlays)) | |
2080 | (progn | |
2081 | (setq isearch-opened-overlays | |
2082 | (append isearch-opened-overlays crt-overlays)) | |
2083 | (mapc 'isearch-open-overlay-temporary crt-overlays) | |
2084 | nil) | |
2085 | (setq isearch-hidden t))))))) | |
08200510 RS |
2086 | |
2087 | \f | |
191f025a | 2088 | ;; Highlighting |
08200510 | 2089 | |
b78559b0 | 2090 | (defvar isearch-overlay nil) |
08200510 | 2091 | |
b78559b0 | 2092 | (defun isearch-highlight (beg end) |
8005142f | 2093 | (unless (null search-highlight) |
4fb2ad98 MB |
2094 | (cond (isearch-overlay |
2095 | ;; Overlay already exists, just move it. | |
4fb2ad98 MB |
2096 | (move-overlay isearch-overlay beg end (current-buffer))) |
2097 | ||
2098 | (t | |
2099 | ;; Overlay doesn't exist, create it. | |
2100 | (setq isearch-overlay (make-overlay beg end)) | |
c982ab21 GM |
2101 | (overlay-put isearch-overlay 'face isearch) |
2102 | (overlay-put isearch-overlay 'priority 1) ;higher than lazy overlays | |
2103 | )))) | |
b78559b0 RS |
2104 | |
2105 | (defun isearch-dehighlight (totally) | |
4fb2ad98 | 2106 | (when isearch-overlay |
4fb2ad98 MB |
2107 | (delete-overlay isearch-overlay))) |
2108 | ||
08200510 | 2109 | |
191f025a | 2110 | ;; General utilities |
08200510 | 2111 | |
08200510 | 2112 | |
b78559b0 RS |
2113 | (defun isearch-no-upper-case-p (string regexp-flag) |
2114 | "Return t if there are no upper case chars in STRING. | |
b7852303 | 2115 | If REGEXP-FLAG is non-nil, disregard letters preceded by `\\' (but not `\\\\') |
b78559b0 | 2116 | since they have special meaning in a regexp." |
b48ca14f | 2117 | (let (quote-flag (i 0) (len (length string)) found) |
59057198 RS |
2118 | (while (and (not found) (< i len)) |
2119 | (let ((char (aref string i))) | |
2120 | (if (and regexp-flag (eq char ?\\)) | |
2121 | (setq quote-flag (not quote-flag)) | |
2122 | (if (and (not quote-flag) (not (eq char (downcase char)))) | |
f4be3f89 RS |
2123 | (setq found t)) |
2124 | (setq quote-flag nil))) | |
59057198 RS |
2125 | (setq i (1+ i))) |
2126 | (not found))) | |
08200510 | 2127 | |
b78559b0 | 2128 | ;; Portability functions to support various Emacs versions. |
8e1cae6d | 2129 | |
08200510 | 2130 | (defun isearch-text-char-description (c) |
14373677 SM |
2131 | (cond |
2132 | ((< c ?\ ) (format "^%c" (+ c 64))) | |
2133 | ((= c ?\^?) "^?") | |
2134 | (t (char-to-string c)))) | |
08200510 | 2135 | |
bd1bd125 | 2136 | ;; General function to unread characters or events. |
99ae9e9f | 2137 | ;; Also insert them in a keyboard macro being defined. |
8f90f594 | 2138 | (defun isearch-unread (&rest char-or-events) |
02b2f510 | 2139 | (mapc 'store-kbd-macro-event char-or-events) |
bd1bd125 RS |
2140 | (setq unread-command-events |
2141 | (append char-or-events unread-command-events))) | |
08200510 | 2142 | |
44336afb | 2143 | \f |
191f025a SM |
2144 | ;; isearch-lazy-highlight feature |
2145 | ;; by Bob Glickstein <http://www.zanshin.com/~bobg/> | |
2146 | ||
2147 | ;; When active, *every* match for the current search string is | |
2148 | ;; highlighted: the current one using the normal isearch match color | |
2149 | ;; and all the others using `isearch-lazy-highlight-face'. The extra | |
2150 | ;; highlighting makes it easier to anticipate where the cursor will | |
2151 | ;; land each time you press C-s or C-r to repeat a pending search. | |
2152 | ;; Highlighting of these additional matches happens in a deferred | |
2153 | ;; fashion using "idle timers," so the cycles needed do not rob | |
2154 | ;; isearch of its usual snappy response. | |
2155 | ||
2156 | ;; IMPLEMENTATION NOTE: This depends on some isearch internals. | |
2157 | ;; Specifically: | |
2158 | ;; - `isearch-update' is expected to be called (at least) every time | |
2159 | ;; the search string or window-start changes; | |
2160 | ;; - `isearch-string' is expected to contain the current search | |
2161 | ;; string as entered by the user; | |
2162 | ;; - the type of the current search is expected to be given by | |
2163 | ;; `isearch-word' and `isearch-regexp'; | |
2164 | ;; - the direction of the current search is expected to be given by | |
2165 | ;; `isearch-forward'; | |
2166 | ;; - the variable `isearch-invalid-regexp' is expected to be true | |
2167 | ;; iff `isearch-string' is an invalid regexp. | |
44336afb | 2168 | |
44336afb GM |
2169 | (defgroup isearch-lazy-highlight nil |
2170 | "Lazy highlighting feature for incremental search." | |
2171 | :prefix "isearch-lazy-highlight-" | |
39f2174e | 2172 | :version "21.1" |
44336afb GM |
2173 | :group 'isearch) |
2174 | ||
2175 | (defcustom isearch-lazy-highlight t | |
2176 | "*Controls the lazy-highlighting during incremental searches. | |
2177 | When non-nil, all text in the buffer matching the current search | |
2178 | string is highlighted lazily (see `isearch-lazy-highlight-initial-delay' | |
2179 | and `isearch-lazy-highlight-interval')." | |
2180 | :type 'boolean | |
2181 | :group 'isearch-lazy-highlight) | |
2182 | ||
2183 | (defcustom isearch-lazy-highlight-cleanup t | |
2184 | "*Controls whether to remove extra highlighting after a search. | |
2185 | If this is nil, extra highlighting can be \"manually\" removed with | |
2186 | \\[isearch-lazy-highlight-cleanup]." | |
2187 | :type 'boolean | |
2188 | :group 'isearch-lazy-highlight) | |
2189 | ||
871e0439 | 2190 | (defcustom isearch-lazy-highlight-initial-delay 0.25 |
44336afb GM |
2191 | "*Seconds to wait before beginning to lazily highlight all matches." |
2192 | :type 'number | |
2193 | :group 'isearch-lazy-highlight) | |
2194 | ||
b8fbd474 | 2195 | (defcustom isearch-lazy-highlight-interval 0 ; 0.0625 |
44336afb GM |
2196 | "*Seconds between lazily highlighting successive matches." |
2197 | :type 'number | |
2198 | :group 'isearch-lazy-highlight) | |
2199 | ||
c982ab21 GM |
2200 | (defcustom isearch-lazy-highlight-max-at-a-time 20 |
2201 | "*Maximum matches to highlight at a time (for `isearch-lazy-highlight'). | |
2202 | Larger values may reduce isearch's responsiveness to user input; | |
2203 | smaller values make matches highlight slowly. | |
2204 | A value of nil means highlight all matches." | |
68ebbb95 GM |
2205 | :type '(choice (const :tag "All" nil) |
2206 | (integer :tag "Some")) | |
2207 | :group 'isearch-lazy-highlight) | |
2208 | ||
18ca20aa GM |
2209 | (defgroup isearch-faces nil |
2210 | "Lazy highlighting feature for incremental search." | |
2211 | :version "21.1" | |
2212 | :group 'isearch) | |
2213 | ||
2214 | (defface isearch | |
328419c1 | 2215 | '((((class color) (min-colors 88) (background light)) |
b4d7a2ec RS |
2216 | ;; The background must not be too dark, for that means |
2217 | ;; the character is hard to see when the cursor is there. | |
5bcf0054 | 2218 | (:background "magenta2" :foreground "lightskyblue1")) |
328419c1 | 2219 | (((class color) (min-colors 88) (background dark)) |
29910493 | 2220 | (:background "palevioletred2" :foreground "brown4")) |
328419c1 EZ |
2221 | (((class color) (min-colors 16)) |
2222 | (:background "magenta4" :foreground "cyan1")) | |
2223 | (((class color) (min-colors 8)) | |
2224 | (:background "magenta4" :foreground "cyan1")) | |
29910493 EZ |
2225 | (t (:inverse-video t))) |
2226 | "Face for highlighting Isearch matches." | |
18ca20aa GM |
2227 | :group 'isearch-faces) |
2228 | (defvar isearch 'isearch) | |
2229 | ||
2230 | (defface isearch-lazy-highlight-face | |
328419c1 | 2231 | '((((class color) (min-colors 88) (background light)) |
29910493 | 2232 | (:background "paleturquoise")) |
328419c1 | 2233 | (((class color) (min-colors 88) (background dark)) |
29910493 | 2234 | (:background "paleturquoise4")) |
328419c1 EZ |
2235 | (((class color) (min-colors 16)) |
2236 | (:background "turquoise3")) | |
2237 | (((class color) (min-colors 8)) | |
2238 | (:background "turquoise3")) | |
29910493 EZ |
2239 | (t (:underline t))) |
2240 | "Face for lazy highlighting of Isearch matches other than the current one." | |
18ca20aa GM |
2241 | :group 'isearch-faces) |
2242 | (defvar isearch-lazy-highlight-face 'isearch-lazy-highlight-face) | |
44336afb GM |
2243 | |
2244 | (defvar isearch-lazy-highlight-overlays nil) | |
c982ab21 | 2245 | (defvar isearch-lazy-highlight-wrapped nil) |
44336afb GM |
2246 | (defvar isearch-lazy-highlight-start nil) |
2247 | (defvar isearch-lazy-highlight-end nil) | |
2248 | (defvar isearch-lazy-highlight-timer nil) | |
2249 | (defvar isearch-lazy-highlight-last-string nil) | |
c982ab21 GM |
2250 | (defvar isearch-lazy-highlight-window nil) |
2251 | (defvar isearch-lazy-highlight-window-start nil) | |
1e491f1b | 2252 | (defvar isearch-lazy-highlight-window-end nil) |
46daf6c7 GM |
2253 | (defvar isearch-lazy-highlight-case-fold-search nil) |
2254 | (defvar isearch-lazy-highlight-regexp nil) | |
44336afb | 2255 | |
c982ab21 GM |
2256 | (defun isearch-lazy-highlight-cleanup (&optional force) |
2257 | "Stop lazy highlighting and remove extra highlighting from current buffer. | |
2258 | FORCE non-nil means do it whether or not `isearch-lazy-highlight-cleanup' | |
2259 | is nil. This function is called when exiting an incremental search if | |
2260 | `isearch-lazy-highlight-cleanup' is non-nil." | |
44336afb | 2261 | (interactive '(t)) |
c982ab21 GM |
2262 | (if (or force isearch-lazy-highlight-cleanup) |
2263 | (while isearch-lazy-highlight-overlays | |
2264 | (delete-overlay (car isearch-lazy-highlight-overlays)) | |
2265 | (setq isearch-lazy-highlight-overlays | |
2266 | (cdr isearch-lazy-highlight-overlays)))) | |
2267 | (when isearch-lazy-highlight-timer | |
2268 | (cancel-timer isearch-lazy-highlight-timer) | |
2269 | (setq isearch-lazy-highlight-timer nil))) | |
44336afb GM |
2270 | |
2271 | (defun isearch-lazy-highlight-new-loop () | |
c982ab21 | 2272 | "Cleanup any previous `isearch-lazy-highlight' loop and begin a new one. |
44336afb | 2273 | This happens when `isearch-update' is invoked (which can cause the |
c982ab21 | 2274 | search string to change or the window to scroll)." |
67ecad4e | 2275 | (when (and isearch-lazy-highlight |
4c01d4bd | 2276 | (null executing-kbd-macro) |
c982ab21 GM |
2277 | (sit-for 0) ;make sure (window-start) is credible |
2278 | (or (not (equal isearch-string | |
2279 | isearch-lazy-highlight-last-string)) | |
2280 | (not (eq (selected-window) | |
2281 | isearch-lazy-highlight-window)) | |
46daf6c7 GM |
2282 | (not (eq isearch-lazy-highlight-case-fold-search |
2283 | isearch-case-fold-search)) | |
2284 | (not (eq isearch-lazy-highlight-regexp | |
2285 | isearch-regexp)) | |
c982ab21 | 2286 | (not (= (window-start) |
1e491f1b EZ |
2287 | isearch-lazy-highlight-window-start)) |
2288 | (not (= (window-end) ; Window may have been split/joined. | |
2289 | isearch-lazy-highlight-window-end)))) | |
c982ab21 GM |
2290 | ;; something important did indeed change |
2291 | (isearch-lazy-highlight-cleanup t) ;kill old loop & remove overlays | |
2292 | (when (not isearch-invalid-regexp) | |
2293 | (setq isearch-lazy-highlight-window (selected-window) | |
2294 | isearch-lazy-highlight-window-start (window-start) | |
1e491f1b | 2295 | isearch-lazy-highlight-window-end (window-end) |
c982ab21 GM |
2296 | isearch-lazy-highlight-start (point) |
2297 | isearch-lazy-highlight-end (point) | |
2298 | isearch-lazy-highlight-last-string isearch-string | |
46daf6c7 GM |
2299 | isearch-lazy-highlight-case-fold-search isearch-case-fold-search |
2300 | isearch-lazy-highlight-regexp isearch-regexp | |
c982ab21 GM |
2301 | isearch-lazy-highlight-wrapped nil) |
2302 | (setq isearch-lazy-highlight-timer | |
2303 | (run-with-idle-timer isearch-lazy-highlight-initial-delay nil | |
2304 | 'isearch-lazy-highlight-update))))) | |
2305 | ||
2306 | (defun isearch-lazy-highlight-search () | |
2307 | "Search ahead for the next or previous match, for lazy highlighting. | |
2308 | Attempt to do the search exactly the way the pending isearch would." | |
191f025a SM |
2309 | (let ((case-fold-search isearch-case-fold-search)) |
2310 | (funcall (isearch-search-fun) | |
c982ab21 GM |
2311 | isearch-string |
2312 | (if isearch-forward | |
2313 | (if isearch-lazy-highlight-wrapped | |
2314 | isearch-lazy-highlight-start | |
2315 | (window-end)) | |
2316 | (if isearch-lazy-highlight-wrapped | |
2317 | isearch-lazy-highlight-end | |
2318 | (window-start))) | |
2319 | t))) | |
44336afb GM |
2320 | |
2321 | (defun isearch-lazy-highlight-update () | |
c982ab21 GM |
2322 | "Update highlighting of other matches for current search." |
2323 | (let ((max isearch-lazy-highlight-max-at-a-time) | |
2324 | (looping t) | |
2325 | nomore) | |
7742ee19 RS |
2326 | (save-excursion |
2327 | (save-match-data | |
c982ab21 GM |
2328 | (goto-char (if isearch-forward |
2329 | isearch-lazy-highlight-end | |
2330 | isearch-lazy-highlight-start)) | |
2331 | (while looping | |
2332 | (let ((found (isearch-lazy-highlight-search))) | |
2333 | (when max | |
2334 | (setq max (1- max)) | |
2335 | (if (<= max 0) | |
2336 | (setq looping nil))) | |
2337 | (if found | |
2338 | (let ((mb (match-beginning 0)) | |
2339 | (me (match-end 0))) | |
2340 | (if (= mb me) ;zero-length match | |
2341 | (forward-char 1) | |
2342 | ||
2343 | ;; non-zero-length match | |
2344 | (let ((ov (make-overlay mb me))) | |
2345 | (overlay-put ov 'face isearch-lazy-highlight-face) | |
2346 | (overlay-put ov 'priority 0) ;lower than main overlay | |
2347 | (overlay-put ov 'window (selected-window)) | |
2348 | (push ov isearch-lazy-highlight-overlays))) | |
2349 | (if isearch-forward | |
2350 | (setq isearch-lazy-highlight-end (point)) | |
2351 | (setq isearch-lazy-highlight-start (point)))) | |
2352 | ||
2353 | ;; not found | |
2354 | (if isearch-lazy-highlight-wrapped | |
2355 | (setq looping nil | |
2356 | nomore t) | |
2357 | (setq isearch-lazy-highlight-wrapped t) | |
2358 | (if isearch-forward | |
2359 | (progn | |
2360 | (setq isearch-lazy-highlight-end (window-start)) | |
2361 | (goto-char (window-start))) | |
2362 | (setq isearch-lazy-highlight-start (window-end)) | |
2363 | (goto-char (window-end))))))) | |
2364 | (unless nomore | |
2365 | (setq isearch-lazy-highlight-timer | |
2366 | (run-at-time isearch-lazy-highlight-interval nil | |
2367 | 'isearch-lazy-highlight-update))))))) | |
44336afb | 2368 | |
c40a4de1 GM |
2369 | (defun isearch-resume (search regexp word forward message case-fold) |
2370 | "Resume an incremental search. | |
2371 | SEARCH is the string or regexp searched for. | |
2372 | REGEXP non-nil means the resumed search was a regexp search. | |
2373 | WORD non-nil means resume a word search. | |
2374 | FORWARD non-nil means resume a forward search. | |
2375 | MESSAGE is the echo-area message recorded for the search resumed. | |
2376 | CASE-FOLD non-nil means the search was case-insensitive." | |
2377 | (isearch-mode forward regexp nil nil word) | |
2378 | (setq isearch-string search | |
2379 | isearch-message message | |
2380 | isearch-case-fold-search case-fold) | |
2381 | (isearch-search)) | |
191f025a | 2382 | |
81e898ea | 2383 | ;; arch-tag: 74850515-f7d8-43a6-8a2c-ca90a4c1e675 |
3b1e4dd1 | 2384 | ;;; isearch.el ends here |