1 ;;; isearch-mode.el --- Incremental search minor mode.
3 ;; Copyright (C) 1992, 1993, 1997 Free Software Foundation, Inc.
5 ;; Author: Daniel LaLiberte <liberte@cs.uiuc.edu>
6 ;; Maintainer: XEmacs Development Team
7 ;; Keywords: extensions, dumped
9 ;; This file is part of XEmacs.
11 ;; XEmacs is free software; you can redistribute it and/or modify it
12 ;; under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; XEmacs is distributed in the hope that it will be useful, but
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ;; General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with XEmacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
26 ;;; Synched up with: Not synched with FSF.
31 ;; isearch-mode|Daniel LaLiberte|liberte@cs.uiuc.edu
32 ;; |A minor mode replacement for isearch.el.
34 ;;====================================================================
37 ;; Searching with isearch-mode.el should work just like isearch.el,
38 ;; except it is done in a temporary minor mode that terminates when
39 ;; you finish searching.
41 ;; Semi-modal searching is supported, using a recursive edit. If
42 ;; isearching is started non-interactively by calling one of the
43 ;; isearch commands (e.g. (isearch-forward), but not like gnus does
44 ;; it: (call-interactively 'isearch-forward)), isearch-mode does not
45 ;; return until the search is completed. You should still be able
46 ;; switch buffers, so be careful not to get things confused.
48 ;; The key bindings active within isearch-mode are defined below in
49 ;; `isearch-mode-map' which is given bindings close to the default
50 ;; characters of isearch.el for version 19. With `isearch-mode',
51 ;; however, you can bind multi-character keys and it should be easier
52 ;; to add new commands. One bug though: keys with meta-prefix cannot
53 ;; be longer than two chars. Also see minibuffer-local-isearch-map
54 ;; for bindings active during `isearch-edit-string'.
56 ;; The search ring and completion commands automatically put you in
57 ;; the minibuffer to edit the string. This gives you a chance to
58 ;; modify the search string before executing the search. There are
59 ;; three commands to terminate the editing: C-s and C-r exit the
60 ;; minibuffer and search forward and reverse respectively, while C-m
61 ;; exits and does a nonincremental search.
63 ;; Exiting immediately from isearch uses isearch-edit-string instead
64 ;; of nonincremental-search, if search-nonincremental-instead is non-nil.
65 ;; The name of this option should probably be changed if we decide to
66 ;; keep the behavior. One difference is that isearch-edit-string does
67 ;; not support word search yet; perhaps isearch-mode should support it
68 ;; even for incremental searches, but how?
70 ;;====================================================================
73 ;; Header: /import/kaplan/kaplan/liberte/Isearch/RCS/isearch-mode.el,v 1.3 92/06/29 13:10:08 liberte Exp Locker: liberte
74 ;; Log: isearch-mode.el,v
76 ;; 20-aug-92 Hacked by jwz for Lucid Emacs 19.3.
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.
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.
91 ;; Also see variables search-caps-disable-folding,
92 ;; search-nonincremental-instead, search-whitespace-regexp, and
93 ;; commands isearch-toggle-regexp, isearch-edit-string.
95 ;; semi-modal isearching is supported.
98 ;; 3/18/92 Fixed invalid-regexp.
99 ;; 3/18/92 Fixed yanking in regexps.
103 (defgroup isearch nil
109 (defun isearch-char-to-string (c)
111 (make-string 1 (event-to-character c nil nil t))
114 ;(defun isearch-text-char-description (c)
115 ; (isearch-char-to-string c))
117 (define-function 'isearch-text-char-description 'text-char-description)
120 ;;;=========================================================================
121 ;;; User-accessible variables
123 (defvar search-last-string ""
124 "Last string search for by a search command.
125 This does not include direct calls to the primitive search functions,
126 and does not include searches that are aborted.")
128 (defvar search-last-regexp ""
129 "Last string searched for by a regexp search command.
130 This does not include direct calls to the primitive search functions,
131 and does not include searches that are aborted.")
133 (defconst search-exit-option t
134 "Non-nil means random control characters terminate incremental search.")
136 (defcustom search-slow-window-lines 1
137 "*Number of lines in slow search display windows.
138 These are the short windows used during incremental search on slow terminals.
139 Negative means put the slow search window at the top (normally it's at bottom)
140 and the value is minus the number of lines."
144 (defcustom search-slow-speed 1200
145 "*Highest terminal speed at which to use \"slow\" style incremental search.
146 This is the style where a one-line window is created to show the line
147 that the search has reached."
151 (defcustom search-caps-disable-folding t
152 "*If non-nil, upper case chars disable case fold searching.
153 This does not apply to \"yanked\" strings."
157 (defcustom search-nonincremental-instead t
158 "*If non-nil, do a nonincremental search instead if exiting immediately."
162 (defcustom search-whitespace-regexp "\\(\\s \\|[\n\r]\\)+"
163 "*If non-nil, regular expression to match a sequence of whitespace chars."
167 ;;;==================================================================
170 (defvar search-ring nil
171 "List of search string sequences.")
172 (defvar regexp-search-ring nil
173 "List of regular expression search string sequences.")
175 (defcustom search-ring-max 16
176 "*Maximum length of search ring before oldest elements are thrown away."
179 (defcustom regexp-search-ring-max 16
180 "*Maximum length of regexp search ring before oldest elements are thrown away."
184 (defvar search-ring-yank-pointer nil
185 "The tail of the search ring whose car is the last thing searched for.")
186 (defvar regexp-search-ring-yank-pointer nil
187 "The tail of the regular expression search ring whose car is the last
188 thing searched for.")
190 ;;;====================================================
191 ;;; Define isearch-mode keymap.
193 (defvar isearch-mode-map
194 (let ((map (make-keymap)))
195 (set-keymap-name map 'isearch-mode-map)
197 ;; Bind all printing characters to `isearch-printing-char'.
198 ;; This isn't normally necessary, but if a printing character were
199 ;; bound to something other than self-insert-command in global-map,
200 ;; then it would terminate the search and be executed without this.
202 (str (make-string 1 0)))
205 (define-key map str 'isearch-printing-char)
207 (define-key map "\t" 'isearch-printing-char)
209 ;; Several non-printing chars change the searching behavior.
211 (define-key map "\C-s" 'isearch-repeat-forward)
212 (define-key map "\M-\C-s" 'isearch-repeat-forward)
213 (define-key map "\C-r" 'isearch-repeat-backward)
214 (define-key map "\C-g" 'isearch-abort)
216 (define-key map "\C-q" 'isearch-quote-char)
218 (define-key map "\C-m" 'isearch-exit)
219 (define-key map "\C-j" 'isearch-printing-char)
220 (define-key map "\t" 'isearch-printing-char)
222 (define-key map "\C-w" 'isearch-yank-word)
223 (define-key map "\C-y" 'isearch-yank-line)
224 (define-key map "\M-y" 'isearch-yank-kill)
226 ;; Define keys for regexp chars * ? |
227 (define-key map "*" 'isearch-*-char)
228 (define-key map "?" 'isearch-*-char)
229 (define-key map "|" 'isearch-|-char)
231 ;; Some bindings you may want to put in your isearch-mode-hook.
232 ;; Suggest some alternates...
233 ;; (define-key map "\C-t" 'isearch-toggle-regexp)
234 ;; (define-key map "\C-^" 'isearch-edit-string)
236 ;; delete and backspace delete backward, f1 is help, and C-h can be either
237 (define-key map 'delete 'isearch-delete-char)
238 (define-key map 'backspace 'isearch-delete-char)
239 (define-key map '(control h) 'isearch-help-or-delete-char)
240 (define-key map 'f1 'isearch-mode-help)
241 (define-key map 'help 'isearch-mode-help)
243 (define-key map "\M-n" 'isearch-ring-advance)
244 (define-key map "\M-p" 'isearch-ring-retreat)
245 (define-key map "\M- " 'isearch-whitespace-chars)
246 (define-key map "\M-\t" 'isearch-complete)
248 (define-key map 'button2 'isearch-yank-x-selection)
251 "Keymap for isearch-mode.")
253 (defvar minibuffer-local-isearch-map
254 (let ((map (make-sparse-keymap)))
255 ;; #### - this should also be minor-mode-ified
256 (set-keymap-parents map (list minibuffer-local-map))
257 (set-keymap-name map 'minibuffer-local-isearch-map)
259 ;;#### This should just arrange to use the usual Emacs minibuffer histories
260 (define-key map "\r" 'isearch-nonincremental-exit-minibuffer)
261 (define-key map "\M-n" 'isearch-ring-advance-edit)
262 (define-key map "\M-p" 'isearch-ring-retreat-edit)
263 (define-key map "\M-\t" 'isearch-complete-edit)
264 (define-key map "\C-s" 'isearch-forward-exit-minibuffer)
265 (define-key map "\C-r" 'isearch-reverse-exit-minibuffer)
267 "Keymap for editing isearch strings in the minibuffer.")
269 ;;;========================================================
270 ;; Internal variables declared globally for byte-compiler.
271 ;; These are all bound locally while editing the search string.
273 (defvar isearch-forward nil) ; Searching in the forward direction.
274 (defvar isearch-regexp nil) ; Searching for a regexp.
275 (defvar isearch-word nil) ; Searching for words.
277 (defvar isearch-cmds nil) ; Stack of search status sets.
278 (defvar isearch-string "") ; The current search string.
279 (defvar isearch-message "") ; text-char-description version of isearch-string
281 (defvar isearch-success t) ; Searching is currently successful.
282 (defvar isearch-invalid-regexp nil) ; Regexp not well formed.
283 (defvar isearch-other-end nil) ; Start (end) of match if forward (backward).
284 (defvar isearch-wrapped nil) ; Searching restarted from the top (bottom).
285 (defvar isearch-barrier 0)
286 (defvar isearch-just-started nil)
287 (defvar isearch-buffer nil) ; the buffer we've frobbed the keymap of
289 (defvar isearch-case-fold-search nil)
291 (defvar isearch-adjusted nil)
292 (defvar isearch-slow-terminal-mode nil)
293 ;;; If t, using a small window.
294 (defvar isearch-small-window nil)
295 (defvar isearch-opoint 0)
296 ;;; The window configuration active at the beginning of the search.
297 (defvar isearch-window-configuration nil)
298 (defvar isearch-selected-frame nil)
300 ;; Flag to indicate a yank occurred, so don't move the cursor.
301 (defvar isearch-yank-flag nil)
303 ;;; A function to be called after each input character is processed.
304 ;;; (It is not called after characters that exit the search.)
305 ;;; It is only set from an optional argument to `isearch-mode'.
306 (defvar isearch-op-fun nil)
308 ;;; Is isearch-mode in a recursive edit for modal searching.
309 (defvar isearch-recursive-edit nil)
311 ;;; Should isearch be terminated after doing one search?
312 (defvar isearch-nonincremental nil)
314 ;; New value of isearch-forward after isearch-edit-string.
315 (defvar isearch-new-forward nil)
318 (defvar isearch-mode-hook nil
319 "Function(s) to call after starting up an incremental search.")
321 (defvar isearch-mode-end-hook nil
322 "Function(s) to call after terminating an incremental search.")
324 ;;;==============================================================
325 ;; Minor-mode-alist changes - kind of redundant with the
326 ;; echo area, but if isearching in multiple windows, it can be useful.
328 (add-minor-mode 'isearch-mode 'isearch-mode)
330 (defvar isearch-mode nil)
331 (make-variable-buffer-local 'isearch-mode)
333 ;;;===============================================================
334 ;;; Entry points to isearch-mode.
335 ;;; These four functions should replace those in loaddefs.el
336 ;;; An alternative is to fset isearch-forward etc to isearch-mode,
337 ;;; and look at the last command to set the options accordingly.
339 (defun isearch-forward (&optional regexp-p)
340 "Do incremental search forward.
341 With a prefix argument, do an incremental regular expression search instead.
343 As you type characters, they add to the search string and are found.
344 The following non-printing keys are bound in `isearch-mode-map'.
346 Type \\[isearch-delete-char] to cancel characters from end of search string.
347 Type \\[isearch-exit] to exit, leaving point at location found.
348 Type LFD (C-j) to match end of line.
349 Type \\[isearch-repeat-forward] to search again forward,\
350 \\[isearch-repeat-backward] to search again backward.
351 Type \\[isearch-yank-word] to yank word from buffer onto end of search\
352 string and search for it.
353 Type \\[isearch-yank-line] to yank rest of line onto end of search string\
355 Type \\[isearch-quote-char] to quote control character to search for it.
356 Type \\[isearch-whitespace-chars] to match all whitespace chars in regexp.
357 \\[isearch-abort] while searching or when search has failed cancels input\
359 been found successfully.
360 \\[isearch-abort] when search is successful aborts and moves point to\
363 Also supported is a search ring of the previous 16 search strings.
364 Type \\[isearch-ring-advance] to search for the next item in the search ring.
365 Type \\[isearch-ring-retreat] to search for the previous item in the search\
367 Type \\[isearch-complete] to complete the search string using the search ring.
369 The above keys are bound in the isearch-mode-map. To change the keys which
370 are special to isearch-mode, simply change the bindings in that map.
372 Other control and meta characters terminate the search
373 and are then executed normally (depending on `search-exit-option').
375 If this function is called non-interactively, it does not return to
376 the calling function until the search is done.
378 The bindings, more precisely:
379 \\{isearch-mode-map}"
381 ;; Non-standard bindings
382 ;; Type \\[isearch-toggle-regexp] to toggle regular expression with normal searching.
383 ;; Type \\[isearch-edit-string] to edit the search string in the minibuffer.
384 ;; Terminate editing and return to incremental searching with CR.
387 (isearch-mode t (not (null regexp-p)) nil (not (interactive-p))))
389 (defun isearch-forward-regexp ()
391 Do incremental search forward for regular expression.
392 Like ordinary incremental search except that your input
393 is treated as a regexp. See \\[isearch-forward] for more info."
395 (isearch-mode t t nil (not (interactive-p))))
397 (defun isearch-backward (&optional regexp-p)
399 Do incremental search backward.
400 With a prefix argument, do an incremental regular expression search instead.
401 See \\[isearch-forward] for more information."
403 (isearch-mode nil (not (null regexp-p)) nil (not (interactive-p))))
405 (defun isearch-backward-regexp ()
407 Do incremental search backward for regular expression.
408 Like ordinary incremental search except that your input
409 is treated as a regexp. See \\[isearch-forward] for more info."
411 (isearch-mode nil t nil (not (interactive-p))))
413 ;; This function is way wrong, because you can't scroll the help
414 ;; screen; as soon as you press a key, it's gone. I don't know of a
415 ;; good way to fix it, though. -hniksic
416 (defun isearch-mode-help ()
418 (let ((w (selected-window)))
419 (describe-function 'isearch-forward)
424 ;;;==================================================================
425 ;; isearch-mode only sets up incremental search for the minor mode.
426 ;; All the work is done by the isearch-mode commands.
428 (defun isearch-mode (forward &optional regexp op-fun recursive-edit word-p)
429 "Start isearch minor mode. Called by isearch-forward, etc."
431 (if executing-kbd-macro (setq recursive-edit nil))
433 (let ((inhibit-quit t)) ; don't leave things in an inconsistent state...
435 ;; Initialize global vars.
436 (setq isearch-buffer (current-buffer)
437 isearch-forward forward
438 isearch-regexp regexp
440 isearch-op-fun op-fun
441 isearch-case-fold-search case-fold-search
447 isearch-barrier (point)
449 isearch-yank-flag nil
450 isearch-invalid-regexp nil
451 isearch-slow-terminal-mode (and (<= (device-baud-rate)
454 (* 4 search-slow-window-lines)))
455 isearch-other-end nil
456 isearch-small-window nil
457 isearch-just-started t
459 isearch-opoint (point)
460 isearch-window-configuration (current-window-configuration)
462 ;; #### Should we remember the old value of
463 ;; overriding-local-map?
464 overriding-local-map isearch-mode-map
465 isearch-selected-frame (selected-frame)
467 isearch-mode (gettext " Isearch")
470 ;; XEmacs change: without clearing the match data, sometimes old values
471 ;; of isearch-other-end get used. Don't ask me why...
472 (store-match-data nil)
474 (add-hook 'pre-command-hook 'isearch-pre-command-hook)
475 (set-buffer-modified-p (buffer-modified-p)) ; update modeline
478 ) ; inhibit-quit is t before here
481 (run-hooks 'isearch-mode-hook)
483 ;; isearch-mode can be made modal (in the sense of not returning to
484 ;; the calling function until searching is completed) by entering
485 ;; a recursive-edit and exiting it when done isearching.
487 (let ((isearch-recursive-edit t))
492 ;;;====================================================
493 ;; Some high level utilities. Others below.
495 (defun isearch-update ()
496 ;; Called after each command to update the display.
497 (if (null unread-command-event)
499 (if (not (input-pending-p))
501 (if (and isearch-slow-terminal-mode
502 (not (or isearch-small-window
503 (pos-visible-in-window-p))))
504 (let ((found-point (point)))
505 (setq isearch-small-window t)
506 (move-to-window-line 0)
507 (let ((window-min-height 1))
508 (split-window nil (if (< search-slow-window-lines 0)
509 (1+ (- search-slow-window-lines))
511 (1+ search-slow-window-lines)))))
512 (if (< search-slow-window-lines 0)
513 (progn (vertical-motion (- 1 search-slow-window-lines))
514 (set-window-start (next-window) (point))
515 (set-window-hscroll (next-window)
517 (set-window-hscroll (selected-window) 0))
519 (goto-char found-point)))
520 (if isearch-other-end
521 (if (< isearch-other-end (point))
522 (isearch-highlight isearch-other-end (point))
523 (isearch-highlight (point) isearch-other-end))
524 (if (extentp isearch-extent)
525 (isearch-dehighlight nil)))
527 (setq ;; quit-flag nil not for isearch-mode
529 isearch-yank-flag nil)
533 (defun isearch-done ()
534 ;; Called by all commands that terminate isearch-mode.
535 (let ((inhibit-quit t)) ; danger danger!
536 (if (and isearch-buffer (buffer-live-p isearch-buffer))
538 ;; Some loser process filter might have switched the
539 ;; window's buffer, so be sure to set these variables back
540 ;; in the buffer we frobbed them in. But only if the buffer
542 (set-buffer isearch-buffer)
543 ;; #### Should we restore the old value of
544 ;; overriding-local-map?
545 (setq overriding-local-map nil)
546 ;; Use remove-hook instead of just setting it to our saved value
547 ;; in case some process filter has created a buffer and modified
548 ;; the pre-command-hook in that buffer... yeah, this is obscure,
549 ;; and yeah, I was getting screwed by it. -jwz
550 (remove-hook 'pre-command-hook 'isearch-pre-command-hook)
551 (set-keymap-parents isearch-mode-map nil)
552 (setq isearch-mode nil)
553 (set-buffer-modified-p (buffer-modified-p));; update modeline
554 (isearch-dehighlight t)))
556 ;; it's not critical that this be inside inhibit-quit, but leaving
557 ;; things in small-window-mode would be bad.
558 (let ((found-start (window-start (selected-window)))
559 (found-point (point)))
560 (cond ((eq (selected-frame) isearch-selected-frame)
561 (set-window-configuration isearch-window-configuration)
563 (if isearch-small-window
564 (goto-char found-point)
565 ;; Exiting the save-window-excursion clobbers
566 ;; window-start; restore it.
567 (set-window-start (selected-window) found-start t))))
568 ;; If there was movement, mark the starting position.
569 ;; Maybe should test difference between and set mark iff > threshold.
570 (if (and (buffer-live-p isearch-buffer)
571 (/= (point isearch-buffer) isearch-opoint))
573 (push-mark isearch-opoint t nil isearch-buffer)
574 (or executing-kbd-macro (> (minibuffer-depth) 0)
575 (display-message 'command "Mark saved where search started"))))
577 (setq isearch-buffer nil)
578 ) ; inhibit-quit is t before here
580 (if (> (length isearch-string) 0)
581 ;; Update the ring data.
583 (if (not (setq regexp-search-ring-yank-pointer
584 (member isearch-string regexp-search-ring)))
586 (setq regexp-search-ring
587 (cons isearch-string regexp-search-ring)
588 regexp-search-ring-yank-pointer regexp-search-ring)
589 (if (> (length regexp-search-ring) regexp-search-ring-max)
590 (setcdr (nthcdr (1- search-ring-max) regexp-search-ring)
592 (if (not (setq search-ring-yank-pointer
593 ;; really need equal test instead of eq.
594 (member isearch-string search-ring)))
596 (setq search-ring (cons isearch-string search-ring)
597 search-ring-yank-pointer search-ring)
598 (if (> (length search-ring) search-ring-max)
599 (setcdr (nthcdr (1- search-ring-max) search-ring) nil))))))
601 (run-hooks 'isearch-mode-end-hook)
602 (if isearch-recursive-edit (exit-recursive-edit)))
605 ;;;====================================================
606 ;; Commands active while inside of the isearch minor mode.
608 (defun isearch-exit ()
609 "Exit search normally.
610 However, if this is the first command after starting incremental
611 search and `search-nonincremental-instead' is non-nil, do an
612 incremental search via `isearch-edit-string'."
614 (if (and search-nonincremental-instead
615 (= 0 (length isearch-string)))
616 (let ((isearch-nonincremental t))
617 (isearch-edit-string))
621 (defun isearch-edit-string ()
622 "Edit the search string in the minibuffer.
623 The following additional command keys are active while editing.
624 \\<minibuffer-local-isearch-map>
625 \\[exit-minibuffer] to exit editing and resume incremental searching.
626 \\[isearch-forward-exit-minibuffer] to resume isearching forward.
627 \\[isearch-backward-exit-minibuffer] to resume isearching backward.
628 \\[isearch-ring-advance-edit] to replace the search string with the next\
629 item in the search ring.
630 \\[isearch-ring-retreat-edit] to replace the search string with the next\
631 item in the search ring.
632 \\[isearch-complete-edit] to complete the search string from the search ring."
634 ;; Editing doesn't back up the search point. Should it?
638 (let ((minibuffer-local-map minibuffer-local-isearch-map)
639 isearch-nonincremental ; should search nonincrementally?
642 (isearch-new-forward isearch-forward)
644 ;; Locally bind all isearch global variables to protect them
645 ;; from recursive isearching.
646 (isearch-string isearch-string)
647 (isearch-message isearch-message)
648 (isearch-forward isearch-forward) ; set by commands below.
650 (isearch-forward isearch-forward)
651 (isearch-regexp isearch-regexp)
652 (isearch-word isearch-word)
653 (isearch-op-fun isearch-op-fun)
654 (isearch-cmds isearch-cmds)
655 (isearch-success isearch-success)
656 (isearch-wrapped isearch-wrapped)
657 (isearch-barrier isearch-barrier)
658 (isearch-adjusted isearch-adjusted)
659 (isearch-yank-flag isearch-yank-flag)
660 (isearch-invalid-regexp isearch-invalid-regexp)
661 (isearch-other-end isearch-other-end)
662 (isearch-opoint isearch-opoint)
663 (isearch-slow-terminal-mode isearch-slow-terminal-mode)
664 (isearch-small-window isearch-small-window)
665 (isearch-recursive-edit isearch-recursive-edit)
666 (isearch-window-configuration (current-window-configuration))
667 (isearch-selected-frame (selected-frame))
669 ;; Actually terminate isearching until editing is done.
670 ;; This is so that the user can do anything without failure,
671 ;; like switch buffers and start another isearch, and return.
672 ;; (condition-case nil
674 ;;#### What does this mean? There is no such condition!
675 ;; (exit nil)) ; was recursive editing
678 (let ((prompt (isearch-message-prefix nil t))
680 ;; If the first character the user types when we prompt them
681 ;; for a string is the yank-word character, then go into
682 ;; word-search mode. Otherwise unread that character and
683 ;; read a string the normal way.
684 (let ((cursor-in-echo-area t))
685 (display-message 'prompt prompt)
686 (setq event (next-command-event))
687 (if (eq 'isearch-yank-word
688 (lookup-key isearch-mode-map (vector event)))
689 (setq isearch-word t)
690 (setq unread-command-event event)))
691 (setq isearch-new-string
692 ;; (if (fboundp 'gmhist-old-read-from-minibuffer)
693 ;; ;; Eschew gmhist crockery
694 ;; (gmhist-old-read-from-minibuffer prompt isearch-string)
696 prompt isearch-string
697 't ;does its own history (but shouldn't)
698 ;; (if isearch-regexp
699 ;; ;; The search-rings aren't exactly minibuffer
700 ;; ;; histories, but they are close enough
701 ;; (cons 'regexp-search-ring
702 ;; (- (length regexp-search-ring-yank-pointer)
703 ;; (length regexp-search-ring)))
704 ;; (cons 'search-ring
705 ;; (- (length search-ring-yank-pointer)
706 ;; (length search-ring))))
709 isearch-new-message (mapconcat
710 'isearch-text-char-description
711 isearch-new-string ""))
713 ;; Always resume isearching by restarting it.
714 (isearch-mode isearch-forward
717 isearch-recursive-edit
721 ;; Copy new values in outer locals to isearch globals
722 (setq isearch-string isearch-new-string
723 isearch-message isearch-new-message
724 isearch-forward isearch-new-forward)
726 ;; Empty isearch-string means use default.
727 (if (= 0 (length isearch-string))
728 (setq isearch-string (if isearch-regexp search-last-regexp
730 ;; Set last search string now so it is set even if we fail.
731 (if search-last-regexp
732 (setq search-last-regexp isearch-string)
733 (setq search-last-string isearch-string)))
735 ;; Reinvoke the pending search.
739 (if isearch-nonincremental (isearch-done)))
741 (quit ; handle abort-recursive-edit
742 (isearch-abort) ;; outside of let to restore outside global values
745 (defun isearch-nonincremental-exit-minibuffer ()
747 (setq isearch-nonincremental t)
750 (defun isearch-forward-exit-minibuffer ()
752 (setq isearch-new-forward t)
755 (defun isearch-reverse-exit-minibuffer ()
757 (setq isearch-new-forward nil)
761 (defun isearch-abort ()
762 "Quit incremental search mode if searching is successful, signalling quit.
763 Otherwise, revert to previous successful search and continue searching.
764 Use `isearch-exit' to quit without signalling."
766 ;; (ding) signal instead below, if quiting
769 ;; If search is successful, move back to starting point
770 ;; and really do quit.
771 (progn (goto-char isearch-opoint)
772 (isearch-done) ; exit isearch
773 (signal 'quit '(isearch))) ; and pass on quit signal
774 ;; If search is failing, rub out until it is once more successful.
775 (while (not isearch-success) (isearch-pop-state))
779 (defun isearch-repeat (direction)
780 ;; Utility for isearch-repeat-forward and -backward.
781 (if (eq isearch-forward (eq direction 'forward))
782 ;; C-s in forward or C-r in reverse.
783 (if (equal isearch-string "")
784 ;; If search string is empty, use last one.
786 (or (if isearch-regexp
787 (if regexp-search-ring-yank-pointer
788 (car regexp-search-ring-yank-pointer)
789 (car regexp-search-ring))
790 (if search-ring-yank-pointer
791 (car search-ring-yank-pointer)
795 (mapconcat 'isearch-text-char-description
797 ;; If already have what to search for, repeat it.
801 (goto-char (if isearch-forward (point-min) (point-max)))
802 (setq isearch-wrapped t))))
803 ;; C-s in reverse or C-r in forward, change direction.
804 (setq isearch-forward (not isearch-forward)))
806 (setq isearch-barrier (point)) ; For subsequent \| if regexp.
807 (if (equal isearch-string "")
808 (setq isearch-success t)
809 (if (and (equal (match-end 0) (match-beginning 0))
811 (not isearch-just-started))
812 ;; If repeating a search that found
813 ;; an empty string, ensure we advance.
814 (if (if isearch-forward (eobp) (bobp))
815 ;; nowhere to advance to, so fail (and wrap next time)
817 (setq isearch-success nil)
818 (and executing-kbd-macro
819 (not defining-kbd-macro)
821 (ding nil 'isearch-failed))
822 (forward-char (if isearch-forward 1 -1))
828 (defun isearch-repeat-forward ()
829 "Repeat incremental search forwards."
831 (isearch-repeat 'forward))
833 (defun isearch-repeat-backward ()
834 "Repeat incremental search backwards."
836 (isearch-repeat 'backward))
838 (defun isearch-toggle-regexp ()
839 "Toggle regexp searching on or off."
840 ;; The status stack is left unchanged.
842 (setq isearch-regexp (not isearch-regexp))
843 (if isearch-regexp (setq isearch-word nil))
846 (defun isearch-toggle-case-fold ()
847 "Toggle case folding in searching on or off."
849 (setq isearch-case-fold-search
850 (if isearch-case-fold-search nil 'yes))
851 (message "%s%s [case %ssensitive]"
852 (isearch-message-prefix)
854 (if isearch-case-fold-search "in" ""))
855 (setq isearch-adjusted t)
859 (defun isearch-delete-char ()
860 "Discard last input item and move point back.
861 If no previous match was done, just beep."
863 (if (null (cdr isearch-cmds))
864 (ding nil 'isearch-quit)
868 (defun isearch-help-or-delete-char ()
869 "Show Isearch help or delete backward in the search string.
870 Deletes when `delete-key-deletes-forward' is t and C-h is used for deleting
873 (if (and delete-key-deletes-forward
875 ('tty (eq tty-erase-char ?\C-h))
876 ('x (not (x-keysym-on-keyboard-sans-modifiers-p 'backspace)))))
877 (isearch-delete-char)
878 (isearch-mode-help)))
880 (defun isearch-yank (chunk)
881 ;; Helper for isearch-yank-* functions. CHUNK can be a string or a
883 (let ((word (if (stringp chunk)
886 (and (not isearch-forward) isearch-other-end
887 (goto-char isearch-other-end))
893 ;; if configured so that typing upper-case characters turns off case
894 ;; folding, then downcase the string so that yanking an upper-case
895 ;; word doesn't mess with case-foldedness.
896 (if (and search-caps-disable-folding isearch-case-fold-search)
897 (setq word (downcase word)))
898 (if isearch-regexp (setq word (regexp-quote word)))
899 (setq isearch-string (concat isearch-string word)
901 (concat isearch-message
902 (mapconcat 'isearch-text-char-description
904 ;; Don't move cursor in reverse search.
905 isearch-yank-flag t))
906 (isearch-search-and-update))
909 (defun isearch-yank-word ()
910 "Pull next word from buffer into search string."
912 (isearch-yank (function (lambda () (forward-word 1)))))
914 (defun isearch-yank-line ()
915 "Pull rest of line from buffer into search string."
917 (isearch-yank 'end-of-line))
919 (defun isearch-yank-kill ()
920 "Pull rest of line from kill ring into search string."
922 (isearch-yank (current-kill 0)))
924 (defun isearch-yank-sexp ()
925 "Pull next expression from buffer into search string."
927 (isearch-yank 'forward-sexp))
929 (defun isearch-yank-x-selection ()
930 "Pull the current X selection into the search string."
932 (isearch-yank (x-get-selection)))
934 (defun isearch-yank-x-clipboard ()
935 "Pull the current X clipboard selection into the search string."
937 (isearch-yank (x-get-clipboard)))
939 (defun isearch-fix-case ()
940 (if (and isearch-case-fold-search search-caps-disable-folding)
941 (setq isearch-case-fold-search (isearch-no-upper-case-p isearch-string)))
942 (setq isearch-mode (if case-fold-search
943 (if isearch-case-fold-search
944 " Isearch" ;As God Intended Mode
945 " ISeARch") ;Warn about evil case via StuDLYcAps.
947 ; (if isearch-case-fold-search
948 ; " isearch" ;Presumably case-sensitive losers
949 ; ;will notice this 1-char difference.
950 ; " Isearch") ;Weenie mode.
953 (defun isearch-search-and-update ()
954 ;; Do the search and update the display.
955 (if (and (not isearch-success)
956 ;; unsuccessful regexp search may become
957 ;; successful by addition of characters which
958 ;; make isearch-string valid
959 (not isearch-regexp))
961 ;; In reverse search, adding stuff at
962 ;; the end may cause zero or many more chars to be
963 ;; matched, in the string following point.
964 ;; Allow all those possibilities without moving point as
965 ;; long as the match does not extend past search origin.
966 (if (and (not isearch-forward) (not isearch-adjusted)
970 (let ((case-fold-search isearch-case-fold-search))
971 (looking-at (if isearch-regexp isearch-string
972 (regexp-quote isearch-string)))))
974 (or isearch-yank-flag
976 (min isearch-opoint isearch-barrier))))
977 (setq isearch-success t
978 isearch-invalid-regexp nil
979 isearch-other-end (match-end 0))
980 ;; Not regexp, not reverse, or no match at point.
981 (if (and isearch-other-end (not isearch-adjusted))
982 (goto-char (if isearch-forward isearch-other-end
985 (1+ isearch-other-end)))))
989 (if isearch-op-fun (funcall isearch-op-fun))
993 ;; *, ?, and | chars can make a regexp more liberal.
994 ;; They can make a regexp match sooner
995 ;; or make it succeed instead of failing.
996 ;; So go back to place last successful search started
997 ;; or to the last ^S/^R (barrier), whichever is nearer.
999 (defun isearch-*-char ()
1000 "Handle * and ? specially in regexps."
1005 (setq isearch-adjusted t)
1006 (let ((cs (nth (if isearch-forward
1007 5 ; isearch-other-end
1009 (car (cdr isearch-cmds)))))
1010 ;; (car isearch-cmds) is after last search;
1011 ;; (car (cdr isearch-cmds)) is from before it.
1012 (setq cs (or cs isearch-barrier))
1015 (max cs isearch-barrier)
1016 (min cs isearch-barrier))))))
1017 (isearch-process-search-char last-command-event))
1021 (defun isearch-|-char ()
1022 "If in regexp search, jump to the barrier."
1026 (setq isearch-adjusted t)
1027 (goto-char isearch-barrier)))
1028 (isearch-process-search-char last-command-event))
1030 (defun isearch-quote-char ()
1031 "Quote special characters for incremental search."
1033 (isearch-process-search-char (read-quoted-char (isearch-message t))))
1036 (defun isearch-return-char ()
1037 "Convert return into newline for incremental search.
1040 (isearch-process-search-char ?\n))
1043 (defun isearch-printing-char ()
1044 "Any other printing character => add it to the search string and search."
1046 (isearch-process-search-char last-command-event))
1049 (defun isearch-whitespace-chars ()
1050 "Match all whitespace chars, if in regexp mode."
1052 (if (and isearch-regexp search-whitespace-regexp)
1053 (isearch-process-search-string search-whitespace-regexp " ")
1055 (isearch-process-search-char ?\ )
1058 ; (setq isearch-word t)
1059 ; (goto-char isearch-other-end)
1060 ; (isearch-process-search-char ?\ ))
1063 (defun isearch-process-search-char (char)
1064 ;; Append the char to the search string, update the message and re-search.
1065 (isearch-process-search-string (isearch-char-to-string char)
1066 (isearch-text-char-description char)))
1068 (defun isearch-process-search-string (string message)
1069 (setq isearch-string (concat isearch-string string)
1070 isearch-message (concat isearch-message message))
1071 (isearch-search-and-update))
1074 ;;===========================================================
1077 (defcustom search-ring-update nil
1078 "*Non-nil if advancing or retreating in the search ring should cause search.
1079 Default nil means edit the string from the search ring first."
1083 (defun isearch-ring-adjust1 (advance)
1084 ;; Helper for isearch-ring-adjust
1085 (let* ((ring (if isearch-regexp regexp-search-ring search-ring))
1086 (length (length ring))
1087 (yank-pointer-name (if isearch-regexp
1088 'regexp-search-ring-yank-pointer
1089 'search-ring-yank-pointer))
1090 (yank-pointer (eval yank-pointer-name)))
1093 (set yank-pointer-name
1095 (nthcdr (% (+ (- length (length yank-pointer))
1096 (if advance (1- length) 1))
1098 (setq isearch-string (car yank-pointer)
1099 isearch-message (mapconcat 'isearch-text-char-description
1100 isearch-string "")))))
1102 (defun isearch-ring-adjust (advance)
1103 ;; Helper for isearch-ring-advance and isearch-ring-retreat
1104 (if (cdr isearch-cmds) ;; is there more than one thing on stack?
1105 (isearch-pop-state))
1106 (isearch-ring-adjust1 advance)
1107 (isearch-push-state)
1108 (if search-ring-update
1112 (isearch-edit-string)
1115 (defun isearch-ring-advance ()
1116 "Advance to the next search string in the ring."
1117 ;; This could be more general to handle a prefix arg, but who would use it.
1119 (isearch-ring-adjust 'advance))
1121 (defun isearch-ring-retreat ()
1122 "Retreat to the previous search string in the ring."
1124 (isearch-ring-adjust nil))
1126 (defun isearch-ring-adjust-edit (advance)
1127 "Use the next or previous search string in the ring while in minibuffer."
1128 (isearch-ring-adjust1 advance)
1130 (insert isearch-string))
1132 (defun isearch-ring-advance-edit ()
1134 (isearch-ring-adjust-edit 'advance))
1136 (defun isearch-ring-retreat-edit ()
1137 "Retreat to the previous search string in the ring while in the minibuffer."
1139 (isearch-ring-adjust-edit nil))
1142 (defun isearch-complete1 ()
1143 ;; Helper for isearch-complete and isearch-complete-edit
1144 ;; Return t if completion OK,
1145 (let* ((ring (if isearch-regexp regexp-search-ring search-ring))
1146 (alist (mapcar (function (lambda (string) (list string))) ring))
1147 (completion-ignore-case case-fold-search)
1148 (completion (try-completion isearch-string alist))
1152 ;; isearch-string stays the same
1154 ((or completion ; not nil, must be a string
1155 (= 0 (length isearch-string))) ; shouldn't have to say this
1156 (if (equal completion isearch-string) ;; no extension?
1157 (if completion-auto-help
1158 (with-output-to-temp-buffer "*Isearch completions*"
1159 (display-completion-list
1160 (all-completions isearch-string alist))))
1161 (setq isearch-string completion))
1164 (temp-minibuffer-message "No completion")
1167 (defun isearch-complete ()
1168 "Complete the search string from the strings on the search ring.
1169 The completed string is then editable in the minibuffer.
1170 If there is no completion possible, say so and continue searching."
1172 (if (isearch-complete1)
1173 (isearch-edit-string)
1178 (defun isearch-complete-edit ()
1179 "Same as `isearch-complete' except in the minibuffer."
1181 (setq isearch-string (buffer-string))
1182 (if (isearch-complete1)
1185 (insert isearch-string))))
1188 ;;;==============================================================
1189 ;; The search status stack (and isearch window-local variables, not used).
1191 (defun isearch-top-state ()
1192 ;; (fetch-window-local-variables)
1193 (let ((cmd (car isearch-cmds)))
1194 (setq isearch-string (car cmd)
1195 isearch-message (car (cdr cmd))
1196 isearch-success (nth 3 cmd)
1197 isearch-forward (nth 4 cmd)
1198 isearch-other-end (nth 5 cmd)
1199 isearch-invalid-regexp (nth 6 cmd)
1200 isearch-wrapped (nth 7 cmd)
1201 isearch-barrier (nth 8 cmd))
1202 (goto-char (car (cdr (cdr cmd))))))
1204 (defun isearch-pop-state ()
1205 ;; (fetch-window-local-variables)
1206 (setq isearch-cmds (cdr isearch-cmds))
1210 (defun isearch-push-state ()
1212 (cons (list isearch-string isearch-message (point)
1213 isearch-success isearch-forward isearch-other-end
1214 isearch-invalid-regexp isearch-wrapped isearch-barrier)
1218 ;;;==================================================================
1221 (defun isearch-message (&optional c-q-hack ellipsis)
1222 ;; Generate and print the message string.
1223 (let ((cursor-in-echo-area ellipsis)
1225 (isearch-message-prefix c-q-hack)
1227 (isearch-message-suffix c-q-hack)
1229 (if c-q-hack m (display-message 'progress (format "%s" m)))))
1231 (defun isearch-message-prefix (&optional c-q-hack nonincremental)
1232 ;; If about to search, and previous search regexp was invalid,
1233 ;; check that it still is. If it is valid now,
1234 ;; let the message we display while searching say that it is valid.
1235 (and isearch-invalid-regexp
1237 (progn (re-search-forward isearch-string (point) t)
1238 (setq isearch-invalid-regexp nil))
1240 ;; #### - Yo! Emacs assembles strings all over the place, they can't all
1241 ;; be internationalized in the manner proposed below... Add an explicit
1242 ;; call to `gettext' and have the string snarfer pluck the english
1243 ;; strings out of the comment below. XEmacs is on a purespace diet! -Stig
1244 (let ((m (concat (if isearch-success nil "failing ")
1245 (if isearch-wrapped "wrapped ")
1246 (if isearch-word "word ")
1247 (if isearch-regexp "regexp ")
1248 (if nonincremental "search" "I-search")
1249 (if isearch-forward nil " backward")
1252 (aset m 0 (upcase (aref m 0)))
1255 (defun isearch-message-suffix (&optional c-q-hack)
1256 (concat (if c-q-hack "^Q" "")
1257 (if isearch-invalid-regexp
1258 (concat " [" isearch-invalid-regexp "]")
1261 ;;;;; #### - yuck...this is soooo lame. Is this really worth 4k of purespace???
1263 ;;;(let ((i (logior (if isearch-success 32 0)
1264 ;;; (if isearch-wrapped 16 0)
1265 ;;; (if isearch-word 8 0)
1266 ;;; (if isearch-regexp 4 0)
1267 ;;; (if nonincremental 2 0)
1268 ;;; (if isearch-forward 1 0))))
1270 ;;; ((= i 63) (gettext "Wrapped word regexp search: ")) ; 111111
1271 ;;; ((= i 62) (gettext "Wrapped word regexp search backward: ")) ; 111110
1272 ;;; ((= i 61) (gettext "Wrapped word regexp I-search: ")) ; 111101
1273 ;;; ((= i 60) (gettext "Wrapped word regexp I-search backward: ")) ; 111100
1274 ;;; ((= i 59) (gettext "Wrapped word search: ")) ; 111011
1275 ;;; ((= i 58) (gettext "Wrapped word search backward: ")) ; 111010
1276 ;;; ((= i 57) (gettext "Wrapped word I-search: ")) ; 111001
1277 ;;; ((= i 56) (gettext "Wrapped word I-search backward: ")) ; 111000
1278 ;;; ((= i 55) (gettext "Wrapped regexp search: ")) ; 110111
1279 ;;; ((= i 54) (gettext "Wrapped regexp search backward: ")) ; 110110
1280 ;;; ((= i 53) (gettext "Wrapped regexp I-search: ")) ; 110101
1281 ;;; ((= i 52) (gettext "Wrapped regexp I-search backward: ")) ; 110100
1282 ;;; ((= i 51) (gettext "Wrapped search: ")) ; 110011
1283 ;;; ((= i 50) (gettext "Wrapped search backward: ")) ; 110010
1284 ;;; ((= i 49) (gettext "Wrapped I-search: ")) ; 110001
1285 ;;; ((= i 48) (gettext "Wrapped I-search backward: ")) ; 110000
1286 ;;; ((= i 47) (gettext "Word regexp search: ")) ; 101111
1287 ;;; ((= i 46) (gettext "Word regexp search backward: ")) ; 101110
1288 ;;; ((= i 45) (gettext "Word regexp I-search: ")) ; 101101
1289 ;;; ((= i 44) (gettext "Word regexp I-search backward: ")) ; 101100
1290 ;;; ((= i 43) (gettext "Word search: ")) ; 101011
1291 ;;; ((= i 42) (gettext "Word search backward: ")) ; 101010
1292 ;;; ((= i 41) (gettext "Word I-search: ")) ; 101001
1293 ;;; ((= i 40) (gettext "Word I-search backward: ")) ; 101000
1294 ;;; ((= i 39) (gettext "Regexp search: ")) ; 100111
1295 ;;; ((= i 38) (gettext "Regexp search backward: ")) ; 100110
1296 ;;; ((= i 37) (gettext "Regexp I-search: ")) ; 100101
1297 ;;; ((= i 36) (gettext "Regexp I-search backward: ")) ; 100100
1298 ;;; ((= i 35) (gettext "Search: ")) ; 100011
1299 ;;; ((= i 34) (gettext "Search backward: ")) ; 100010
1300 ;;; ((= i 33) (gettext "I-search: ")) ; 100001
1301 ;;; ((= i 32) (gettext "I-search backward: ")) ; 100000
1302 ;;; ((= i 31) (gettext "Failing wrapped word regexp search: ")) ; 011111
1303 ;;; ((= i 30) (gettext "Failing wrapped word regexp search backward: ")) ; 011110
1304 ;;; ((= i 29) (gettext "Failing wrapped word regexp I-search: ")) ; 011101
1305 ;;; ((= i 28) (gettext "Failing wrapped word regexp I-search backward: ")) ; 011100
1306 ;;; ((= i 27) (gettext "Failing wrapped word search: ")) ; 011011
1307 ;;; ((= i 26) (gettext "Failing wrapped word search backward: ")) ; 011010
1308 ;;; ((= i 25) (gettext "Failing wrapped word I-search: ")) ; 011001
1309 ;;; ((= i 24) (gettext "Failing wrapped word I-search backward: ")) ; 011000
1310 ;;; ((= i 23) (gettext "Failing wrapped regexp search: ")) ; 010111
1311 ;;; ((= i 22) (gettext "Failing wrapped regexp search backward: ")) ; 010110
1312 ;;; ((= i 21) (gettext "Failing wrapped regexp I-search: ")) ; 010101
1313 ;;; ((= i 20) (gettext "Failing wrapped regexp I-search backward: ")) ; 010100
1314 ;;; ((= i 19) (gettext "Failing wrapped search: ")) ; 010011
1315 ;;; ((= i 18) (gettext "Failing wrapped search backward: ")) ; 010010
1316 ;;; ((= i 17) (gettext "Failing wrapped I-search: ")) ; 010001
1317 ;;; ((= i 16) (gettext "Failing wrapped I-search backward: ")) ; 010000
1318 ;;; ((= i 15) (gettext "Failing word regexp search: ")) ; 001111
1319 ;;; ((= i 14) (gettext "Failing word regexp search backward: ")) ; 001110
1320 ;;; ((= i 13) (gettext "Failing word regexp I-search: ")) ; 001101
1321 ;;; ((= i 12) (gettext "Failing word regexp I-search backward: ")) ; 001100
1322 ;;; ((= i 11) (gettext "Failing word search: ")) ; 001011
1323 ;;; ((= i 10) (gettext "Failing word search backward: ")) ; 001010
1324 ;;; ((= i 9) (gettext "Failing word I-search: ")) ; 001001
1325 ;;; ((= i 8) (gettext "Failing word I-search backward: ")) ; 001000
1326 ;;; ((= i 7) (gettext "Failing regexp search: ")) ; 000111
1327 ;;; ((= i 6) (gettext "Failing regexp search backward: ")) ; 000110
1328 ;;; ((= i 5) (gettext "Failing regexp I-search: ")) ; 000101
1329 ;;; ((= i 4) (gettext "Failing regexp I-search backward: ")) ; 000100
1330 ;;; ((= i 3) (gettext "Failing search: ")) ; 000011
1331 ;;; ((= i 2) (gettext "Failing search backward: ")) ; 000010
1332 ;;; ((= i 1) (gettext "Failing I-search: ")) ; 000001
1333 ;;; ((= i 0) (gettext "Failing I-search backward: ")) ; 000000
1334 ;;; (t (error "Something's rotten")))))
1337 ;;;========================================================
1340 (put 'isearch-printing-char 'isearch-command t)
1341 (put 'isearch-return-char 'isearch-command t)
1342 (put 'isearch-repeat-forward 'isearch-command t)
1343 (put 'isearch-repeat-backward 'isearch-command t)
1344 (put 'isearch-delete-char 'isearch-command t)
1345 (put 'isearch-help-or-delete-char 'isearch-command t)
1346 (put 'isearch-abort 'isearch-command t)
1347 (put 'isearch-quote-char 'isearch-command t)
1348 (put 'isearch-exit 'isearch-command t)
1349 (put 'isearch-printing-char 'isearch-command t)
1350 (put 'isearch-printing-char 'isearch-command t)
1351 (put 'isearch-yank-word 'isearch-command t)
1352 (put 'isearch-yank-line 'isearch-command t)
1353 (put 'isearch-yank-kill 'isearch-command t)
1354 (put 'isearch-yank-sexp 'isearch-command t)
1355 (put 'isearch-*-char 'isearch-command t)
1356 (put 'isearch-*-char 'isearch-command t)
1357 (put 'isearch-|-char 'isearch-command t)
1358 (put 'isearch-toggle-regexp 'isearch-command t)
1359 (put 'isearch-toggle-case-fold 'isearch-command t)
1360 (put 'isearch-edit-string 'isearch-command t)
1361 (put 'isearch-mode-help 'isearch-command t)
1362 (put 'isearch-ring-advance 'isearch-command t)
1363 (put 'isearch-ring-retreat 'isearch-command t)
1364 (put 'isearch-ring-advance-edit 'isearch-command t)
1365 (put 'isearch-ring-retreat-edit 'isearch-command t)
1366 (put 'isearch-whitespace-chars 'isearch-command t)
1367 (put 'isearch-complete 'isearch-command t)
1368 (put 'isearch-complete-edit 'isearch-command t)
1369 (put 'isearch-edit-string 'isearch-command t)
1370 (put 'isearch-toggle-regexp 'isearch-command t)
1371 (put 'isearch-forward-exit-minibuffer 'isearch-command t)
1372 (put 'isearch-reverse-exit-minibuffer 'isearch-command t)
1373 (put 'isearch-nonincremental-exit-minibuffer 'isearch-command t)
1374 (put 'isearch-yank-x-selection 'isearch-command t)
1375 (put 'isearch-yank-x-clipboard 'isearch-command t)
1377 ;; scrolling the scrollbar should not terminate isearch.
1379 ;; vertical scrollbar:
1380 (put 'scrollbar-line-up 'isearch-command t)
1381 (put 'scrollbar-line-down 'isearch-command t)
1382 (put 'scrollbar-page-up 'isearch-command t)
1383 (put 'scrollbar-page-down 'isearch-command t)
1384 (put 'scrollbar-to-top 'isearch-command t)
1385 (put 'scrollbar-to-bottom 'isearch-command t)
1386 (put 'scrollbar-vertical-drag 'isearch-command t)
1388 ;; horizontal scrollbar:
1389 (put 'scrollbar-char-left 'isearch-command t)
1390 (put 'scrollbar-char-right 'isearch-command t)
1391 (put 'scrollbar-page-left 'isearch-command t)
1392 (put 'scrollbar-page-right 'isearch-command t)
1393 (put 'scrollbar-to-left 'isearch-command t)
1394 (put 'scrollbar-to-right 'isearch-command t)
1395 (put 'scrollbar-horizontal-drag 'isearch-command t)
1397 (defun isearch-pre-command-hook ()
1399 ;; For use as the value of `pre-command-hook' when isearch-mode is active.
1400 ;; If the command about to be executed is not one of the isearch commands,
1401 ;; then isearch-mode is turned off before that command is executed.
1403 ;; If the command about to be executed is self-insert-command, or is a
1404 ;; keyboard macro of a single key sequence which is bound to self-insert-
1405 ;; command, then we add those chars to the search ring instead of inserting
1406 ;; them in the buffer. In this way, the set of self-searching characters
1407 ;; need not be exhaustively enumerated, but is derived from other maps.
1409 (cond ((not (eq (current-buffer) isearch-buffer))
1410 ;; If the buffer (likely meaning "frame") has changed, bail.
1411 ;; This can also happen if a proc filter has popped up another
1412 ;; buffer, which is arguably a bad thing for it to have done,
1413 ;; but the way in which isearch would have hosed you in that
1414 ;; case is unarguably even worse. -jwz
1417 (isearch-maybe-frob-keyboard-macros)
1418 (if (and this-command
1419 (symbolp this-command)
1420 (get this-command 'isearch-command))
1421 nil ; then continue.
1424 (defun isearch-maybe-frob-keyboard-macros ()
1426 ;; If the command about to be executed is `self-insert-command' then change
1427 ;; the command to `isearch-printing-char' instead, meaning add the last-
1428 ;; typed character to the search string.
1430 ;; If `this-command' is a string or a vector (that is, a keyboard macro)
1431 ;; and it contains only one command, which is bound to self-insert-command,
1432 ;; then do the same thing as for self-inserting commands: arrange for that
1433 ;; character to be added to the search string. If we didn't do this, then
1434 ;; typing a compose sequence (a la x-compose.el) would terminate the search
1435 ;; and insert the character, instead of searching for that character.
1437 ;; We should continue doing this, since it's pretty much the behavior one
1438 ;; would expect, but it will stop being so necessary once key-translation-
1439 ;; map exists and is used by x-compose.el and things like it, since the
1440 ;; translation will have been done before we see the keys.
1442 (cond ((eq this-command 'self-insert-command)
1443 (setq this-command 'isearch-printing-char))
1444 ((and (or (stringp this-command) (vectorp this-command))
1445 (eq (key-binding this-command) 'self-insert-command))
1446 (setq last-command-event (character-to-event (aref this-command 0))
1447 last-command-char (and (stringp this-command)
1448 (aref this-command 0))
1449 this-command 'isearch-printing-char))
1453 ;;;========================================================
1456 (defcustom isearch-highlight t
1457 "*Whether isearch and query-replace should highlight the text which
1458 currently matches the search-string.")
1460 (defvar isearch-extent nil)
1462 ;; this face is initialized by x-faces.el since isearch is preloaded.
1463 ;; this face is now created in initialize-faces
1464 ;;(make-face 'isearch)
1466 (defun isearch-make-extent (begin end)
1467 (let ((x (make-extent begin end (current-buffer))))
1468 ;; make the isearch extent always take prescedence over any mouse-
1469 ;; highlighted extents we may be passing through, since isearch, being
1470 ;; modal, is more interesting (there's nothing they could do with a
1471 ;; mouse-highlighted extent while in the midst of a search anyway).
1472 (set-extent-priority x (1+ mouse-highlight-priority))
1473 (set-extent-face x 'isearch)
1474 (setq isearch-extent x)))
1476 (defun isearch-highlight (begin end)
1477 (if (null isearch-highlight)
1479 ;; make sure isearch-extent is in the current buffer
1480 (or (extentp isearch-extent)
1481 (isearch-make-extent begin end))
1482 (set-extent-endpoints isearch-extent begin end (current-buffer))))
1484 (defun isearch-dehighlight (totally)
1485 (if (and isearch-highlight isearch-extent)
1487 (let ((inhibit-quit t))
1488 (if (extentp isearch-extent)
1489 (delete-extent isearch-extent))
1490 (setq isearch-extent nil))
1491 (if (extentp isearch-extent)
1492 (detach-extent isearch-extent)
1493 (setq isearch-extent nil)))))
1496 ;;;========================================================
1499 (defun isearch-search ()
1500 ;; Do the search with the current search string.
1501 (isearch-message nil t)
1503 (condition-case lossage
1504 (let ((inhibit-quit nil)
1505 (case-fold-search isearch-case-fold-search))
1506 (if isearch-regexp (setq isearch-invalid-regexp nil))
1507 (setq isearch-success
1511 'word-search-forward 'word-search-backward))
1514 're-search-forward 're-search-backward))
1516 (if isearch-forward 'search-forward 'search-backward)))
1517 isearch-string nil t))
1518 (setq isearch-just-started nil)
1520 (setq isearch-other-end
1521 (if isearch-forward (match-beginning 0) (match-end 0)))))
1523 (quit (setq unread-command-event (character-to-event (quit-char)))
1524 (setq isearch-success nil))
1527 (setq isearch-invalid-regexp (car (cdr lossage)))
1529 "\\`Premature \\|\\`Unmatched \\|\\`Invalid "
1530 isearch-invalid-regexp)
1531 (setq isearch-invalid-regexp (gettext "incomplete input")))))
1536 ;; If we're being run inside a keyboard macro, then the call to
1537 ;; ding will signal an error (to terminate the macro). We must
1538 ;; turn off isearch-mode first, so that we aren't still in isearch
1539 ;; mode after the macro exits. Note that isearch-recursive-edit
1540 ;; must not be true if a keyboard macro is executing.
1541 (if (and executing-kbd-macro (not defining-kbd-macro))
1544 (ding nil 'isearch-failed)))
1546 ;; Ding if failed this time after succeeding last time.
1547 (and (nth 3 (car isearch-cmds))
1548 (ding nil 'isearch-failed))
1549 (goto-char (nth 2 (car isearch-cmds)))))
1551 ;;;=================================================
1552 ;; This is called from incremental-search
1553 ;; if the first input character is the exit character.
1555 ;; We store the search string in `isearch-string'
1556 ;; which has been bound already by `isearch-search'
1557 ;; so that, when we exit, it is copied into `search-last-string'.
1559 ;(defun nonincremental-search (forward regexp)
1560 ; ;; This may be broken. Anyway, it is replaced by the isearch-edit-string.
1561 ; ;; Missing features: word search option, command history.
1562 ; (setq isearch-forward forward
1563 ; isearch-regexp regexp)
1564 ; (let (char function
1566 ; (cursor-in-echo-area t))
1567 ; ;; Prompt assuming not word search,
1568 ; (setq isearch-message
1569 ; (if isearch-regexp
1570 ; (if isearch-forward "Regexp search: "
1571 ; "Regexp search backward: ")
1572 ; (if isearch-forward "Search: " "Search backward: ")))
1573 ; (message "%s" isearch-message)
1574 ; ;; Read 1 char and switch to word search if it is ^W.
1575 ; (setq char (read-char))
1576 ; (if (eq char search-yank-word-char)
1577 ; (setq isearch-message (if isearch-forward "Word search: "
1578 ; "Word search backward: "))
1579 ; ;; Otherwise let that 1 char be part of the search string.
1580 ; (setq unread-command-event (character-to-event char))
1583 ; (if (eq char search-yank-word-char)
1584 ; (if isearch-forward 'word-search-forward 'word-search-backward)
1585 ; (if isearch-regexp
1586 ; (if isearch-forward 're-search-forward 're-search-backward)
1587 ; (if isearch-forward 'search-forward 'search-backward))))
1588 ; ;; Read the search string with corrected prompt.
1589 ; (setq isearch-string (read-string isearch-message isearch-string))
1590 ; ;; Empty means use default.
1591 ; (if (= 0 (length isearch-string))
1592 ; (setq isearch-string search-last-string)
1593 ; ;; Set last search string now so it is set even if we fail.
1594 ; (setq search-last-string isearch-string))
1595 ; ;; Since we used the minibuffer, we should be available for redo.
1596 ; (setq command-history
1597 ; (cons (list function isearch-string) command-history))
1598 ; ;; Go ahead and search.
1599 ; (if search-caps-disable-folding
1600 ; (setq isearch-case-fold-search
1601 ; (isearch-no-upper-case-p isearch-string)))
1602 ; (let ((case-fold-search isearch-case-fold-search))
1603 ; (funcall function isearch-string))))
1606 (defun isearch-no-upper-case-p (string)
1607 "Return t if there are no upper case chars in string.
1608 But upper case chars preceded by \\ do not count since they
1609 have special meaning in a regexp."
1610 ;; this incorrectly returns t for "\\\\A"
1611 (let ((case-fold-search nil))
1612 (not (string-match "\\(^\\|[^\\]\\)[A-Z]" string))))
1614 ;; Used by etags.el and info.el
1615 (defmacro with-caps-disable-folding (string &rest body) "\
1616 Eval BODY with `case-fold-search' let to nil if STRING contains
1617 uppercase letters and `search-caps-disable-folding' is t."
1618 `(let ((case-fold-search
1619 (if (and case-fold-search search-caps-disable-folding)
1620 (isearch-no-upper-case-p ,string)
1623 (put 'with-caps-disable-folding 'lisp-indent-function 1)
1624 (put 'with-caps-disable-folding 'edebug-form-spec '(form body))
1626 ;;; isearch-mode.el ends here
projects / chise / xemacs-chise.git.1 / blob