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-nonincremental-instead t
152 "*If non-nil, do a nonincremental search instead if exiting immediately."
156 (defcustom search-whitespace-regexp "\\(\\s \\|[\n\r]\\)+"
157 "*If non-nil, regular expression to match a sequence of whitespace chars."
161 ;;;==================================================================
164 (defvar search-ring nil
165 "List of search string sequences.")
166 (defvar regexp-search-ring nil
167 "List of regular expression search string sequences.")
169 (defcustom search-ring-max 16
170 "*Maximum length of search ring before oldest elements are thrown away."
173 (defcustom regexp-search-ring-max 16
174 "*Maximum length of regexp search ring before oldest elements are thrown away."
178 (defvar search-ring-yank-pointer nil
179 "The tail of the search ring whose car is the last thing searched for.")
180 (defvar regexp-search-ring-yank-pointer nil
181 "The tail of the regular expression search ring whose car is the last
182 thing searched for.")
184 ;;;====================================================
185 ;;; Define isearch-mode keymap.
187 (defvar isearch-mode-map
188 (let ((map (make-keymap)))
189 (set-keymap-name map 'isearch-mode-map)
191 ;; Bind all printing characters to `isearch-printing-char'.
192 ;; This isn't normally necessary, but if a printing character were
193 ;; bound to something other than self-insert-command in global-map,
194 ;; then it would terminate the search and be executed without this.
196 (str (make-string 1 0)))
199 (define-key map str 'isearch-printing-char)
201 (define-key map "\t" 'isearch-printing-char)
203 ;; Several non-printing chars change the searching behavior.
205 (define-key map "\C-s" 'isearch-repeat-forward)
206 (define-key map "\M-\C-s" 'isearch-repeat-forward)
207 (define-key map "\C-r" 'isearch-repeat-backward)
208 (define-key map "\C-g" 'isearch-abort)
210 (define-key map "\C-q" 'isearch-quote-char)
212 (define-key map "\C-m" 'isearch-exit)
213 (define-key map "\C-j" 'isearch-printing-char)
214 (define-key map "\t" 'isearch-printing-char)
216 (define-key map "\C-w" 'isearch-yank-word)
217 (define-key map "\C-y" 'isearch-yank-line)
218 (define-key map "\M-y" 'isearch-yank-kill)
220 ;; Define keys for regexp chars * ? |
221 (define-key map "*" 'isearch-*-char)
222 (define-key map "?" 'isearch-*-char)
223 (define-key map "|" 'isearch-|-char)
225 ;; Some bindings you may want to put in your isearch-mode-hook.
226 ;; Suggest some alternates...
227 ;; (define-key map "\C-t" 'isearch-toggle-regexp)
228 ;; (define-key map "\C-^" 'isearch-edit-string)
230 ;; delete and backspace delete backward, f1 is help, and C-h can be either
231 (define-key map 'delete 'isearch-delete-char)
232 (define-key map 'backspace 'isearch-delete-char)
233 (define-key map '(control h) 'isearch-help-or-delete-char)
234 (define-key map 'f1 'isearch-mode-help)
235 (define-key map 'help 'isearch-mode-help)
237 (define-key map "\M-n" 'isearch-ring-advance)
238 (define-key map "\M-p" 'isearch-ring-retreat)
239 (define-key map "\M- " 'isearch-whitespace-chars)
240 (define-key map "\M-\t" 'isearch-complete)
242 (define-key map 'button2 'isearch-yank-x-selection)
245 "Keymap for isearch-mode.")
247 (defvar minibuffer-local-isearch-map
248 (let ((map (make-sparse-keymap)))
249 ;; #### - this should also be minor-mode-ified
250 (set-keymap-parents map (list minibuffer-local-map))
251 (set-keymap-name map 'minibuffer-local-isearch-map)
253 ;;#### This should just arrange to use the usual Emacs minibuffer histories
254 (define-key map "\r" 'isearch-nonincremental-exit-minibuffer)
255 (define-key map "\M-n" 'isearch-ring-advance-edit)
256 (define-key map "\M-p" 'isearch-ring-retreat-edit)
257 (define-key map "\M-\t" 'isearch-complete-edit)
258 (define-key map "\C-s" 'isearch-forward-exit-minibuffer)
259 (define-key map "\C-r" 'isearch-reverse-exit-minibuffer)
261 "Keymap for editing isearch strings in the minibuffer.")
263 ;;;========================================================
264 ;; Internal variables declared globally for byte-compiler.
265 ;; These are all bound locally while editing the search string.
267 (defvar isearch-forward nil) ; Searching in the forward direction.
268 (defvar isearch-regexp nil) ; Searching for a regexp.
269 (defvar isearch-word nil) ; Searching for words.
271 (defvar isearch-cmds nil) ; Stack of search status sets.
272 (defvar isearch-string "") ; The current search string.
273 (defvar isearch-message "") ; text-char-description version of isearch-string
275 (defvar isearch-success t) ; Searching is currently successful.
276 (defvar isearch-invalid-regexp nil) ; Regexp not well formed.
277 (defvar isearch-other-end nil) ; Start (end) of match if forward (backward).
278 (defvar isearch-wrapped nil) ; Searching restarted from the top (bottom).
279 (defvar isearch-barrier 0)
280 (defvar isearch-just-started nil)
281 (defvar isearch-buffer nil) ; the buffer we've frobbed the keymap of
283 (defvar isearch-case-fold-search nil)
285 (defvar isearch-adjusted nil)
286 (defvar isearch-slow-terminal-mode nil)
287 ;;; If t, using a small window.
288 (defvar isearch-small-window nil)
289 (defvar isearch-opoint 0)
290 ;;; The window configuration active at the beginning of the search.
291 (defvar isearch-window-configuration nil)
292 (defvar isearch-selected-frame nil)
294 ;; Flag to indicate a yank occurred, so don't move the cursor.
295 (defvar isearch-yank-flag nil)
297 ;;; A function to be called after each input character is processed.
298 ;;; (It is not called after characters that exit the search.)
299 ;;; It is only set from an optional argument to `isearch-mode'.
300 (defvar isearch-op-fun nil)
302 ;;; Is isearch-mode in a recursive edit for modal searching.
303 (defvar isearch-recursive-edit nil)
305 ;;; Should isearch be terminated after doing one search?
306 (defvar isearch-nonincremental nil)
308 ;; New value of isearch-forward after isearch-edit-string.
309 (defvar isearch-new-forward nil)
312 (defvar isearch-mode-hook nil
313 "Function(s) to call after starting up an incremental search.")
315 (defvar isearch-mode-end-hook nil
316 "Function(s) to call after terminating an incremental search.")
318 ;;;==============================================================
319 ;; Minor-mode-alist changes - kind of redundant with the
320 ;; echo area, but if isearching in multiple windows, it can be useful.
322 (add-minor-mode 'isearch-mode 'isearch-mode)
324 (defvar isearch-mode nil)
325 (make-variable-buffer-local 'isearch-mode)
327 ;;;===============================================================
328 ;;; Entry points to isearch-mode.
329 ;;; These four functions should replace those in loaddefs.el
330 ;;; An alternative is to fset isearch-forward etc to isearch-mode,
331 ;;; and look at the last command to set the options accordingly.
333 (defun isearch-forward (&optional regexp-p)
334 "Do incremental search forward.
335 With a prefix argument, do an incremental regular expression search instead.
337 As you type characters, they add to the search string and are found.
338 The following non-printing keys are bound in `isearch-mode-map'.
340 Type \\[isearch-delete-char] to cancel characters from end of search string.
341 Type \\[isearch-exit] to exit, leaving point at location found.
342 Type LFD (C-j) to match end of line.
343 Type \\[isearch-repeat-forward] to search again forward,\
344 \\[isearch-repeat-backward] to search again backward.
345 Type \\[isearch-yank-word] to yank word from buffer onto end of search\
346 string and search for it.
347 Type \\[isearch-yank-line] to yank rest of line onto end of search string\
349 Type \\[isearch-quote-char] to quote control character to search for it.
350 Type \\[isearch-whitespace-chars] to match all whitespace chars in regexp.
351 \\[isearch-abort] while searching or when search has failed cancels input\
353 been found successfully.
354 \\[isearch-abort] when search is successful aborts and moves point to\
357 Also supported is a search ring of the previous 16 search strings.
358 Type \\[isearch-ring-advance] to search for the next item in the search ring.
359 Type \\[isearch-ring-retreat] to search for the previous item in the search\
361 Type \\[isearch-complete] to complete the search string using the search ring.
363 The above keys are bound in the isearch-mode-map. To change the keys which
364 are special to isearch-mode, simply change the bindings in that map.
366 Other control and meta characters terminate the search
367 and are then executed normally (depending on `search-exit-option').
369 If this function is called non-interactively, it does not return to
370 the calling function until the search is done.
372 The bindings, more precisely:
373 \\{isearch-mode-map}"
375 ;; Non-standard bindings
376 ;; Type \\[isearch-toggle-regexp] to toggle regular expression with normal searching.
377 ;; Type \\[isearch-edit-string] to edit the search string in the minibuffer.
378 ;; Terminate editing and return to incremental searching with CR.
381 (isearch-mode t (not (null regexp-p)) nil (not (interactive-p))))
383 (defun isearch-forward-regexp ()
385 Do incremental search forward for regular expression.
386 Like ordinary incremental search except that your input
387 is treated as a regexp. See \\[isearch-forward] for more info."
389 (isearch-mode t t nil (not (interactive-p))))
391 (defun isearch-backward (&optional regexp-p)
393 Do incremental search backward.
394 With a prefix argument, do an incremental regular expression search instead.
395 See \\[isearch-forward] for more information."
397 (isearch-mode nil (not (null regexp-p)) nil (not (interactive-p))))
399 (defun isearch-backward-regexp ()
401 Do incremental search backward for regular expression.
402 Like ordinary incremental search except that your input
403 is treated as a regexp. See \\[isearch-forward] for more info."
405 (isearch-mode nil t nil (not (interactive-p))))
407 ;; This function is way wrong, because you can't scroll the help
408 ;; screen; as soon as you press a key, it's gone. I don't know of a
409 ;; good way to fix it, though. -hniksic
410 (defun isearch-mode-help ()
412 (let ((w (selected-window)))
413 (describe-function 'isearch-forward)
418 ;;;==================================================================
419 ;; isearch-mode only sets up incremental search for the minor mode.
420 ;; All the work is done by the isearch-mode commands.
422 (defun isearch-mode (forward &optional regexp op-fun recursive-edit word-p)
423 "Start isearch minor mode. Called by isearch-forward, etc."
425 (if executing-kbd-macro (setq recursive-edit nil))
427 (let ((inhibit-quit t)) ; don't leave things in an inconsistent state...
429 ;; Initialize global vars.
430 (setq isearch-buffer (current-buffer)
431 isearch-forward forward
432 isearch-regexp regexp
434 isearch-op-fun op-fun
435 isearch-case-fold-search case-fold-search
441 isearch-barrier (point)
443 isearch-yank-flag nil
444 isearch-invalid-regexp nil
445 isearch-slow-terminal-mode (and (<= (device-baud-rate)
448 (* 4 search-slow-window-lines)))
449 isearch-other-end nil
450 isearch-small-window nil
451 isearch-just-started t
453 isearch-opoint (point)
454 isearch-window-configuration (current-window-configuration)
456 ;; #### Should we remember the old value of
457 ;; overriding-local-map?
458 overriding-local-map isearch-mode-map
459 isearch-selected-frame (selected-frame)
461 isearch-mode (gettext " Isearch")
463 (let ((map (append (current-minor-mode-maps)
464 (list (current-local-map)))))
466 (set-keymap-parents isearch-mode-map map)))
468 ;; XEmacs change: without clearing the match data, sometimes old values
469 ;; of isearch-other-end get used. Don't ask me why...
470 (store-match-data nil)
472 (add-hook 'pre-command-hook 'isearch-pre-command-hook)
473 (set-buffer-modified-p (buffer-modified-p)) ; update modeline
476 ) ; inhibit-quit is t before here
479 (run-hooks 'isearch-mode-hook)
481 ;; isearch-mode can be made modal (in the sense of not returning to
482 ;; the calling function until searching is completed) by entering
483 ;; a recursive-edit and exiting it when done isearching.
485 (let ((isearch-recursive-edit t))
490 ;;;====================================================
491 ;; Some high level utilities. Others below.
493 (defun isearch-update ()
494 ;; Called after each command to update the display.
495 (if (null unread-command-event)
497 (if (not (input-pending-p))
499 (if (and isearch-slow-terminal-mode
500 (not (or isearch-small-window
501 (pos-visible-in-window-p))))
502 (let ((found-point (point)))
503 (setq isearch-small-window t)
504 (move-to-window-line 0)
505 (let ((window-min-height 1))
506 (split-window nil (if (< search-slow-window-lines 0)
507 (1+ (- search-slow-window-lines))
509 (1+ search-slow-window-lines)))))
510 (if (< search-slow-window-lines 0)
511 (progn (vertical-motion (- 1 search-slow-window-lines))
512 (set-window-start (next-window) (point))
513 (set-window-hscroll (next-window)
515 (set-window-hscroll (selected-window) 0))
517 (goto-char found-point)))
518 (if isearch-other-end
519 (if (< isearch-other-end (point))
520 (isearch-highlight isearch-other-end (point))
521 (isearch-highlight (point) isearch-other-end))
522 (if (extentp isearch-extent)
523 (isearch-dehighlight nil)))
525 (setq ;; quit-flag nil not for isearch-mode
527 isearch-yank-flag nil)
531 (defun isearch-done ()
532 ;; Called by all commands that terminate isearch-mode.
533 (let ((inhibit-quit t)) ; danger danger!
534 (if (and isearch-buffer (buffer-live-p isearch-buffer))
536 ;; Some loser process filter might have switched the
537 ;; window's buffer, so be sure to set these variables back
538 ;; in the buffer we frobbed them in. But only if the buffer
540 (set-buffer isearch-buffer)
541 ;; #### Should we restore the old value of
542 ;; overriding-local-map?
543 (setq overriding-local-map nil)
544 ;; Use remove-hook instead of just setting it to our saved value
545 ;; in case some process filter has created a buffer and modified
546 ;; the pre-command-hook in that buffer... yeah, this is obscure,
547 ;; and yeah, I was getting screwed by it. -jwz
548 (remove-hook 'pre-command-hook 'isearch-pre-command-hook)
549 (set-keymap-parents isearch-mode-map nil)
550 (setq isearch-mode nil)
551 (set-buffer-modified-p (buffer-modified-p));; update modeline
552 (isearch-dehighlight t)))
554 ;; it's not critical that this be inside inhibit-quit, but leaving
555 ;; things in small-window-mode would be bad.
556 (let ((found-start (window-start (selected-window)))
557 (found-point (point)))
558 (cond ((eq (selected-frame) isearch-selected-frame)
559 (set-window-configuration isearch-window-configuration)
561 (if isearch-small-window
562 (goto-char found-point)
563 ;; Exiting the save-window-excursion clobbers
564 ;; window-start; restore it.
565 (set-window-start (selected-window) found-start t))))
566 ;; If there was movement, mark the starting position.
567 ;; Maybe should test difference between and set mark iff > threshold.
568 (if (and (buffer-live-p isearch-buffer)
569 (/= (point isearch-buffer) isearch-opoint))
571 (push-mark isearch-opoint t nil isearch-buffer)
572 (or executing-kbd-macro (> (minibuffer-depth) 0)
573 (display-message 'command "Mark saved where search started"))))
575 (setq isearch-buffer nil)
576 ) ; inhibit-quit is t before here
578 (if (> (length isearch-string) 0)
579 ;; Update the ring data.
581 (if (not (setq regexp-search-ring-yank-pointer
582 (member isearch-string regexp-search-ring)))
584 (setq regexp-search-ring
585 (cons isearch-string regexp-search-ring)
586 regexp-search-ring-yank-pointer regexp-search-ring)
587 (if (> (length regexp-search-ring) regexp-search-ring-max)
588 (setcdr (nthcdr (1- regexp-search-ring-max) regexp-search-ring)
590 (if (not (setq search-ring-yank-pointer
591 ;; really need equal test instead of eq.
592 (member isearch-string search-ring)))
594 (setq search-ring (cons isearch-string search-ring)
595 search-ring-yank-pointer search-ring)
596 (if (> (length search-ring) search-ring-max)
597 (setcdr (nthcdr (1- search-ring-max) search-ring) nil))))))
599 (run-hooks 'isearch-mode-end-hook)
600 (if isearch-recursive-edit (exit-recursive-edit)))
603 ;;;====================================================
604 ;; Commands active while inside of the isearch minor mode.
606 (defun isearch-exit ()
607 "Exit search normally.
608 However, if this is the first command after starting incremental
609 search and `search-nonincremental-instead' is non-nil, do an
610 incremental search via `isearch-edit-string'."
612 (if (and search-nonincremental-instead
613 (= 0 (length isearch-string)))
614 (let ((isearch-nonincremental t))
615 (isearch-edit-string))
619 (defun isearch-edit-string ()
620 "Edit the search string in the minibuffer.
621 The following additional command keys are active while editing.
622 \\<minibuffer-local-isearch-map>
623 \\[exit-minibuffer] to exit editing and resume incremental searching.
624 \\[isearch-forward-exit-minibuffer] to resume isearching forward.
625 \\[isearch-backward-exit-minibuffer] to resume isearching backward.
626 \\[isearch-ring-advance-edit] to replace the search string with the next\
627 item in the search ring.
628 \\[isearch-ring-retreat-edit] to replace the search string with the next\
629 item in the search ring.
630 \\[isearch-complete-edit] to complete the search string from the search ring."
632 ;; Editing doesn't back up the search point. Should it?
636 (let ((minibuffer-local-map minibuffer-local-isearch-map)
637 isearch-nonincremental ; should search nonincrementally?
640 (isearch-new-forward isearch-forward)
642 ;; Locally bind all isearch global variables to protect them
643 ;; from recursive isearching.
644 (isearch-string isearch-string)
645 (isearch-message isearch-message)
646 (isearch-forward isearch-forward) ; set by commands below.
648 (isearch-forward isearch-forward)
649 (isearch-regexp isearch-regexp)
650 (isearch-word isearch-word)
651 (isearch-op-fun isearch-op-fun)
652 (isearch-cmds isearch-cmds)
653 (isearch-success isearch-success)
654 (isearch-wrapped isearch-wrapped)
655 (isearch-barrier isearch-barrier)
656 (isearch-adjusted isearch-adjusted)
657 (isearch-yank-flag isearch-yank-flag)
658 (isearch-invalid-regexp isearch-invalid-regexp)
659 (isearch-other-end isearch-other-end)
660 (isearch-opoint isearch-opoint)
661 (isearch-slow-terminal-mode isearch-slow-terminal-mode)
662 (isearch-small-window isearch-small-window)
663 (isearch-recursive-edit isearch-recursive-edit)
664 (isearch-window-configuration (current-window-configuration))
665 (isearch-selected-frame (selected-frame))
667 ;; Actually terminate isearching until editing is done.
668 ;; This is so that the user can do anything without failure,
669 ;; like switch buffers and start another isearch, and return.
670 ;; (condition-case nil
672 ;;#### What does this mean? There is no such condition!
673 ;; (exit nil)) ; was recursive editing
676 (let ((prompt (isearch-message-prefix nil t))
678 ;; If the first character the user types when we prompt them
679 ;; for a string is the yank-word character, then go into
680 ;; word-search mode. Otherwise unread that character and
681 ;; read a string the normal way.
682 (let ((cursor-in-echo-area t))
683 (display-message 'prompt prompt)
684 (setq event (next-command-event))
685 (if (eq 'isearch-yank-word
686 (lookup-key isearch-mode-map (vector event)))
687 (setq isearch-word t)
688 (setq unread-command-event event)))
689 (setq isearch-new-string
690 ;; (if (fboundp 'gmhist-old-read-from-minibuffer)
691 ;; ;; Eschew gmhist crockery
692 ;; (gmhist-old-read-from-minibuffer prompt isearch-string)
694 prompt isearch-string
695 't ;does its own history (but shouldn't)
696 ;; (if isearch-regexp
697 ;; ;; The search-rings aren't exactly minibuffer
698 ;; ;; histories, but they are close enough
699 ;; (cons 'regexp-search-ring
700 ;; (- (length regexp-search-ring-yank-pointer)
701 ;; (length regexp-search-ring)))
702 ;; (cons 'search-ring
703 ;; (- (length search-ring-yank-pointer)
704 ;; (length search-ring))))
707 isearch-new-message (mapconcat
708 'isearch-text-char-description
709 isearch-new-string ""))
711 ;; Always resume isearching by restarting it.
712 (isearch-mode isearch-forward
715 isearch-recursive-edit
719 ;; Copy new values in outer locals to isearch globals
720 (setq isearch-string isearch-new-string
721 isearch-message isearch-new-message
722 isearch-forward isearch-new-forward)
724 ;; Empty isearch-string means use default.
725 (if (= 0 (length isearch-string))
726 (setq isearch-string (if isearch-regexp search-last-regexp
728 ;; Set last search string now so it is set even if we fail.
729 (if search-last-regexp
730 (setq search-last-regexp isearch-string)
731 (setq search-last-string isearch-string)))
733 ;; Reinvoke the pending search.
737 (if isearch-nonincremental (isearch-done)))
739 (quit ; handle abort-recursive-edit
740 (isearch-abort) ;; outside of let to restore outside global values
743 (defun isearch-nonincremental-exit-minibuffer ()
745 (setq isearch-nonincremental t)
748 (defun isearch-forward-exit-minibuffer ()
750 (setq isearch-new-forward t)
753 (defun isearch-reverse-exit-minibuffer ()
755 (setq isearch-new-forward nil)
759 (defun isearch-abort ()
760 "Quit incremental search mode if searching is successful, signalling quit.
761 Otherwise, revert to previous successful search and continue searching.
762 Use `isearch-exit' to quit without signalling."
764 ;; (ding) signal instead below, if quiting
767 ;; If search is successful, move back to starting point
768 ;; and really do quit.
769 (progn (goto-char isearch-opoint)
770 (isearch-done) ; exit isearch
771 (signal 'quit '(isearch))) ; and pass on quit signal
772 ;; If search is failing, rub out until it is once more successful.
773 (while (not isearch-success) (isearch-pop-state))
777 (defun isearch-repeat (direction)
778 ;; Utility for isearch-repeat-forward and -backward.
779 (if (eq isearch-forward (eq direction 'forward))
780 ;; C-s in forward or C-r in reverse.
781 (if (equal isearch-string "")
782 ;; If search string is empty, use last one.
784 (or (if isearch-regexp
785 (if regexp-search-ring-yank-pointer
786 (car regexp-search-ring-yank-pointer)
787 (car regexp-search-ring))
788 (if search-ring-yank-pointer
789 (car search-ring-yank-pointer)
793 (mapconcat 'isearch-text-char-description
795 ;; If already have what to search for, repeat it.
799 (goto-char (if isearch-forward (point-min) (point-max)))
800 (setq isearch-wrapped t))))
801 ;; C-s in reverse or C-r in forward, change direction.
802 (setq isearch-forward (not isearch-forward)))
804 (setq isearch-barrier (point)) ; For subsequent \| if regexp.
805 (if (equal isearch-string "")
806 (setq isearch-success t)
807 (if (and (equal (match-end 0) (match-beginning 0))
809 (not isearch-just-started))
810 ;; If repeating a search that found
811 ;; an empty string, ensure we advance.
812 (if (if isearch-forward (eobp) (bobp))
813 ;; nowhere to advance to, so fail (and wrap next time)
815 (setq isearch-success nil)
816 (and executing-kbd-macro
817 (not defining-kbd-macro)
819 (ding nil 'isearch-failed))
820 (forward-char (if isearch-forward 1 -1))
826 (defun isearch-repeat-forward ()
827 "Repeat incremental search forwards."
829 (isearch-repeat 'forward))
831 (defun isearch-repeat-backward ()
832 "Repeat incremental search backwards."
834 (isearch-repeat 'backward))
836 (defun isearch-toggle-regexp ()
837 "Toggle regexp searching on or off."
838 ;; The status stack is left unchanged.
840 (setq isearch-regexp (not isearch-regexp))
841 (if isearch-regexp (setq isearch-word nil))
844 (defun isearch-toggle-case-fold ()
845 "Toggle case folding in searching on or off."
847 (setq isearch-case-fold-search
848 (if isearch-case-fold-search nil 'yes))
849 (message "%s%s [case %ssensitive]"
850 (isearch-message-prefix)
852 (if isearch-case-fold-search "in" ""))
853 (setq isearch-adjusted t)
857 (defun isearch-delete-char ()
858 "Discard last input item and move point back.
859 If no previous match was done, just beep."
861 (if (null (cdr isearch-cmds))
862 (ding nil 'isearch-quit)
866 (defun isearch-help-or-delete-char ()
867 "Show Isearch help or delete backward in the search string.
868 Deletes when `delete-key-deletes-forward' is t and C-h is used for deleting
871 (if (and delete-key-deletes-forward
873 ('tty (eq tty-erase-char ?\C-h))
874 ('x (not (x-keysym-on-keyboard-sans-modifiers-p 'backspace)))))
875 (isearch-delete-char)
876 (isearch-mode-help)))
878 (defun isearch-yank (chunk)
879 ;; Helper for isearch-yank-* functions. CHUNK can be a string or a
881 (let ((word (if (stringp chunk)
884 (and (not isearch-forward) isearch-other-end
885 (goto-char isearch-other-end))
891 ;; if configured so that typing upper-case characters turns off case
892 ;; folding, then downcase the string so that yanking an upper-case
893 ;; word doesn't mess with case-foldedness.
894 (if (and search-caps-disable-folding isearch-case-fold-search)
895 (setq word (downcase word)))
896 (if isearch-regexp (setq word (regexp-quote word)))
897 (setq isearch-string (concat isearch-string word)
899 (concat isearch-message
900 (mapconcat 'isearch-text-char-description
902 ;; Don't move cursor in reverse search.
903 isearch-yank-flag t))
904 (isearch-search-and-update))
907 (defun isearch-yank-word ()
908 "Pull next word from buffer into search string."
910 (isearch-yank (function (lambda () (forward-word 1)))))
912 (defun isearch-yank-line ()
913 "Pull rest of line from buffer into search string."
915 (isearch-yank 'end-of-line))
917 (defun isearch-yank-kill ()
918 "Pull rest of line from kill ring into search string."
920 (isearch-yank (current-kill 0)))
922 (defun isearch-yank-sexp ()
923 "Pull next expression from buffer into search string."
925 (isearch-yank 'forward-sexp))
927 (defun isearch-yank-x-selection ()
928 "Pull the current X selection into the search string."
930 (isearch-yank (x-get-selection)))
932 (defun isearch-yank-x-clipboard ()
933 "Pull the current X clipboard selection into the search string."
935 (isearch-yank (x-get-clipboard)))
937 (defun isearch-fix-case ()
938 (if (and isearch-case-fold-search search-caps-disable-folding)
939 (setq isearch-case-fold-search
940 (no-upper-case-p isearch-string isearch-regexp)))
941 (setq isearch-mode (if case-fold-search
942 (if isearch-case-fold-search
943 " Isearch" ;As God Intended Mode
944 " ISeARch") ;Warn about evil case via StuDLYcAps.
946 ; (if isearch-case-fold-search
947 ; " isearch" ;Presumably case-sensitive losers
948 ; ;will notice this 1-char difference.
949 ; " Isearch") ;Weenie mode.
952 (defun isearch-search-and-update ()
953 ;; Do the search and update the display.
954 (if (and (not isearch-success)
955 ;; unsuccessful regexp search may become
956 ;; successful by addition of characters which
957 ;; make isearch-string valid
958 (not isearch-regexp))
960 ;; In reverse search, adding stuff at
961 ;; the end may cause zero or many more chars to be
962 ;; matched, in the string following point.
963 ;; Allow all those possibilities without moving point as
964 ;; long as the match does not extend past search origin.
965 (if (and (not isearch-forward) (not isearch-adjusted)
969 (let ((case-fold-search isearch-case-fold-search))
970 (looking-at (if isearch-regexp isearch-string
971 (regexp-quote isearch-string)))))
973 (or isearch-yank-flag
975 (min isearch-opoint isearch-barrier))))
976 (setq isearch-success t
977 isearch-invalid-regexp nil
978 isearch-other-end (match-end 0))
979 ;; Not regexp, not reverse, or no match at point.
980 (if (and isearch-other-end (not isearch-adjusted))
981 (goto-char (if isearch-forward isearch-other-end
984 (1+ isearch-other-end)))))
988 (if isearch-op-fun (funcall isearch-op-fun))
992 ;; *, ?, and | chars can make a regexp more liberal.
993 ;; They can make a regexp match sooner
994 ;; or make it succeed instead of failing.
995 ;; So go back to place last successful search started
996 ;; or to the last ^S/^R (barrier), whichever is nearer.
998 (defun isearch-*-char ()
999 "Handle * and ? specially in regexps."
1004 (setq isearch-adjusted t)
1005 (let ((cs (nth (if isearch-forward
1006 5 ; isearch-other-end
1008 (car (cdr isearch-cmds)))))
1009 ;; (car isearch-cmds) is after last search;
1010 ;; (car (cdr isearch-cmds)) is from before it.
1011 (setq cs (or cs isearch-barrier))
1014 (max cs isearch-barrier)
1015 (min cs isearch-barrier))))))
1016 (isearch-process-search-char last-command-event))
1020 (defun isearch-|-char ()
1021 "If in regexp search, jump to the barrier."
1025 (setq isearch-adjusted t)
1026 (goto-char isearch-barrier)))
1027 (isearch-process-search-char last-command-event))
1029 (defun isearch-quote-char ()
1030 "Quote special characters for incremental search."
1032 (isearch-process-search-char (read-quoted-char (isearch-message t))))
1035 (defun isearch-return-char ()
1036 "Convert return into newline for incremental search.
1039 (isearch-process-search-char ?\n))
1042 (defun isearch-printing-char ()
1043 "Any other printing character => add it to the search string and search."
1045 (isearch-process-search-char last-command-event))
1048 (defun isearch-whitespace-chars ()
1049 "Match all whitespace chars, if in regexp mode."
1051 (if (and isearch-regexp search-whitespace-regexp)
1052 (isearch-process-search-string search-whitespace-regexp " ")
1054 (isearch-process-search-char ?\ )
1057 ; (setq isearch-word t)
1058 ; (goto-char isearch-other-end)
1059 ; (isearch-process-search-char ?\ ))
1062 (defun isearch-process-search-char (char)
1063 ;; Append the char to the search string, update the message and re-search.
1064 (isearch-process-search-string (isearch-char-to-string char)
1065 (isearch-text-char-description char)))
1067 (defun isearch-process-search-string (string message)
1068 (setq isearch-string (concat isearch-string string)
1069 isearch-message (concat isearch-message message))
1070 (isearch-search-and-update))
1073 ;;===========================================================
1076 (defcustom search-ring-update nil
1077 "*Non-nil if advancing or retreating in the search ring should cause search.
1078 Default nil means edit the string from the search ring first."
1082 (defun isearch-ring-adjust1 (advance)
1083 ;; Helper for isearch-ring-adjust
1084 (let* ((ring (if isearch-regexp regexp-search-ring search-ring))
1085 (length (length ring))
1086 (yank-pointer-name (if isearch-regexp
1087 'regexp-search-ring-yank-pointer
1088 'search-ring-yank-pointer))
1089 (yank-pointer (eval yank-pointer-name)))
1092 (set yank-pointer-name
1094 (nthcdr (% (+ (- length (length yank-pointer))
1095 (if advance (1- length) 1))
1097 (setq isearch-string (car yank-pointer)
1098 isearch-message (mapconcat 'isearch-text-char-description
1099 isearch-string "")))))
1101 (defun isearch-ring-adjust (advance)
1102 ;; Helper for isearch-ring-advance and isearch-ring-retreat
1103 (if (cdr isearch-cmds) ;; is there more than one thing on stack?
1104 (isearch-pop-state))
1105 (isearch-ring-adjust1 advance)
1106 (isearch-push-state)
1107 (if search-ring-update
1111 (isearch-edit-string)
1114 (defun isearch-ring-advance ()
1115 "Advance to the next search string in the ring."
1116 ;; This could be more general to handle a prefix arg, but who would use it.
1118 (isearch-ring-adjust 'advance))
1120 (defun isearch-ring-retreat ()
1121 "Retreat to the previous search string in the ring."
1123 (isearch-ring-adjust nil))
1125 (defun isearch-ring-adjust-edit (advance)
1126 "Use the next or previous search string in the ring while in minibuffer."
1127 (isearch-ring-adjust1 advance)
1129 (insert isearch-string))
1131 (defun isearch-ring-advance-edit ()
1133 (isearch-ring-adjust-edit 'advance))
1135 (defun isearch-ring-retreat-edit ()
1136 "Retreat to the previous search string in the ring while in the minibuffer."
1138 (isearch-ring-adjust-edit nil))
1141 (defun isearch-complete1 ()
1142 ;; Helper for isearch-complete and isearch-complete-edit
1143 ;; Return t if completion OK,
1144 (let* ((ring (if isearch-regexp regexp-search-ring search-ring))
1145 (alist (mapcar (function (lambda (string) (list string))) ring))
1146 (completion-ignore-case case-fold-search)
1147 (completion (try-completion isearch-string alist))
1151 ;; isearch-string stays the same
1153 ((or completion ; not nil, must be a string
1154 (= 0 (length isearch-string))) ; shouldn't have to say this
1155 (if (equal completion isearch-string) ;; no extension?
1156 (if completion-auto-help
1157 (with-output-to-temp-buffer "*Isearch completions*"
1158 (display-completion-list
1159 (all-completions isearch-string alist))))
1160 (setq isearch-string completion))
1163 (temp-minibuffer-message "No completion")
1166 (defun isearch-complete ()
1167 "Complete the search string from the strings on the search ring.
1168 The completed string is then editable in the minibuffer.
1169 If there is no completion possible, say so and continue searching."
1171 (if (isearch-complete1)
1172 (isearch-edit-string)
1177 (defun isearch-complete-edit ()
1178 "Same as `isearch-complete' except in the minibuffer."
1180 (setq isearch-string (buffer-string))
1181 (if (isearch-complete1)
1184 (insert isearch-string))))
1187 ;;;==============================================================
1188 ;; The search status stack (and isearch window-local variables, not used).
1190 (defun isearch-top-state ()
1191 ;; (fetch-window-local-variables)
1192 (let ((cmd (car isearch-cmds)))
1193 (setq isearch-string (car cmd)
1194 isearch-message (car (cdr cmd))
1195 isearch-success (nth 3 cmd)
1196 isearch-forward (nth 4 cmd)
1197 isearch-other-end (nth 5 cmd)
1198 isearch-invalid-regexp (nth 6 cmd)
1199 isearch-wrapped (nth 7 cmd)
1200 isearch-barrier (nth 8 cmd))
1201 (goto-char (car (cdr (cdr cmd))))))
1203 (defun isearch-pop-state ()
1204 ;; (fetch-window-local-variables)
1205 (setq isearch-cmds (cdr isearch-cmds))
1209 (defun isearch-push-state ()
1211 (cons (list isearch-string isearch-message (point)
1212 isearch-success isearch-forward isearch-other-end
1213 isearch-invalid-regexp isearch-wrapped isearch-barrier)
1217 ;;;==================================================================
1220 (defun isearch-message (&optional c-q-hack ellipsis)
1221 ;; Generate and print the message string.
1222 (let ((cursor-in-echo-area ellipsis)
1224 (isearch-message-prefix c-q-hack)
1226 (isearch-message-suffix c-q-hack)
1228 (if c-q-hack m (display-message 'progress (format "%s" m)))))
1230 (defun isearch-message-prefix (&optional c-q-hack nonincremental)
1231 ;; If about to search, and previous search regexp was invalid,
1232 ;; check that it still is. If it is valid now,
1233 ;; let the message we display while searching say that it is valid.
1234 (and isearch-invalid-regexp
1236 (progn (re-search-forward isearch-string (point) t)
1237 (setq isearch-invalid-regexp nil))
1239 ;; #### - Yo! Emacs assembles strings all over the place, they can't all
1240 ;; be internationalized in the manner proposed below... Add an explicit
1241 ;; call to `gettext' and have the string snarfer pluck the english
1242 ;; strings out of the comment below. XEmacs is on a purespace diet! -Stig
1243 (let ((m (concat (if isearch-success nil "failing ")
1244 (if isearch-wrapped "wrapped ")
1245 (if isearch-word "word ")
1246 (if isearch-regexp "regexp ")
1247 (if nonincremental "search" "I-search")
1248 (if isearch-forward nil " backward")
1251 (aset m 0 (upcase (aref m 0)))
1254 (defun isearch-message-suffix (&optional c-q-hack)
1255 (concat (if c-q-hack "^Q" "")
1256 (if isearch-invalid-regexp
1257 (concat " [" isearch-invalid-regexp "]")
1260 ;;;;; #### - yuck...this is soooo lame. Is this really worth 4k of purespace???
1262 ;;;(let ((i (logior (if isearch-success 32 0)
1263 ;;; (if isearch-wrapped 16 0)
1264 ;;; (if isearch-word 8 0)
1265 ;;; (if isearch-regexp 4 0)
1266 ;;; (if nonincremental 2 0)
1267 ;;; (if isearch-forward 1 0))))
1269 ;;; ((= i 63) (gettext "Wrapped word regexp search: ")) ; 111111
1270 ;;; ((= i 62) (gettext "Wrapped word regexp search backward: ")) ; 111110
1271 ;;; ((= i 61) (gettext "Wrapped word regexp I-search: ")) ; 111101
1272 ;;; ((= i 60) (gettext "Wrapped word regexp I-search backward: ")) ; 111100
1273 ;;; ((= i 59) (gettext "Wrapped word search: ")) ; 111011
1274 ;;; ((= i 58) (gettext "Wrapped word search backward: ")) ; 111010
1275 ;;; ((= i 57) (gettext "Wrapped word I-search: ")) ; 111001
1276 ;;; ((= i 56) (gettext "Wrapped word I-search backward: ")) ; 111000
1277 ;;; ((= i 55) (gettext "Wrapped regexp search: ")) ; 110111
1278 ;;; ((= i 54) (gettext "Wrapped regexp search backward: ")) ; 110110
1279 ;;; ((= i 53) (gettext "Wrapped regexp I-search: ")) ; 110101
1280 ;;; ((= i 52) (gettext "Wrapped regexp I-search backward: ")) ; 110100
1281 ;;; ((= i 51) (gettext "Wrapped search: ")) ; 110011
1282 ;;; ((= i 50) (gettext "Wrapped search backward: ")) ; 110010
1283 ;;; ((= i 49) (gettext "Wrapped I-search: ")) ; 110001
1284 ;;; ((= i 48) (gettext "Wrapped I-search backward: ")) ; 110000
1285 ;;; ((= i 47) (gettext "Word regexp search: ")) ; 101111
1286 ;;; ((= i 46) (gettext "Word regexp search backward: ")) ; 101110
1287 ;;; ((= i 45) (gettext "Word regexp I-search: ")) ; 101101
1288 ;;; ((= i 44) (gettext "Word regexp I-search backward: ")) ; 101100
1289 ;;; ((= i 43) (gettext "Word search: ")) ; 101011
1290 ;;; ((= i 42) (gettext "Word search backward: ")) ; 101010
1291 ;;; ((= i 41) (gettext "Word I-search: ")) ; 101001
1292 ;;; ((= i 40) (gettext "Word I-search backward: ")) ; 101000
1293 ;;; ((= i 39) (gettext "Regexp search: ")) ; 100111
1294 ;;; ((= i 38) (gettext "Regexp search backward: ")) ; 100110
1295 ;;; ((= i 37) (gettext "Regexp I-search: ")) ; 100101
1296 ;;; ((= i 36) (gettext "Regexp I-search backward: ")) ; 100100
1297 ;;; ((= i 35) (gettext "Search: ")) ; 100011
1298 ;;; ((= i 34) (gettext "Search backward: ")) ; 100010
1299 ;;; ((= i 33) (gettext "I-search: ")) ; 100001
1300 ;;; ((= i 32) (gettext "I-search backward: ")) ; 100000
1301 ;;; ((= i 31) (gettext "Failing wrapped word regexp search: ")) ; 011111
1302 ;;; ((= i 30) (gettext "Failing wrapped word regexp search backward: ")) ; 011110
1303 ;;; ((= i 29) (gettext "Failing wrapped word regexp I-search: ")) ; 011101
1304 ;;; ((= i 28) (gettext "Failing wrapped word regexp I-search backward: ")) ; 011100
1305 ;;; ((= i 27) (gettext "Failing wrapped word search: ")) ; 011011
1306 ;;; ((= i 26) (gettext "Failing wrapped word search backward: ")) ; 011010
1307 ;;; ((= i 25) (gettext "Failing wrapped word I-search: ")) ; 011001
1308 ;;; ((= i 24) (gettext "Failing wrapped word I-search backward: ")) ; 011000
1309 ;;; ((= i 23) (gettext "Failing wrapped regexp search: ")) ; 010111
1310 ;;; ((= i 22) (gettext "Failing wrapped regexp search backward: ")) ; 010110
1311 ;;; ((= i 21) (gettext "Failing wrapped regexp I-search: ")) ; 010101
1312 ;;; ((= i 20) (gettext "Failing wrapped regexp I-search backward: ")) ; 010100
1313 ;;; ((= i 19) (gettext "Failing wrapped search: ")) ; 010011
1314 ;;; ((= i 18) (gettext "Failing wrapped search backward: ")) ; 010010
1315 ;;; ((= i 17) (gettext "Failing wrapped I-search: ")) ; 010001
1316 ;;; ((= i 16) (gettext "Failing wrapped I-search backward: ")) ; 010000
1317 ;;; ((= i 15) (gettext "Failing word regexp search: ")) ; 001111
1318 ;;; ((= i 14) (gettext "Failing word regexp search backward: ")) ; 001110
1319 ;;; ((= i 13) (gettext "Failing word regexp I-search: ")) ; 001101
1320 ;;; ((= i 12) (gettext "Failing word regexp I-search backward: ")) ; 001100
1321 ;;; ((= i 11) (gettext "Failing word search: ")) ; 001011
1322 ;;; ((= i 10) (gettext "Failing word search backward: ")) ; 001010
1323 ;;; ((= i 9) (gettext "Failing word I-search: ")) ; 001001
1324 ;;; ((= i 8) (gettext "Failing word I-search backward: ")) ; 001000
1325 ;;; ((= i 7) (gettext "Failing regexp search: ")) ; 000111
1326 ;;; ((= i 6) (gettext "Failing regexp search backward: ")) ; 000110
1327 ;;; ((= i 5) (gettext "Failing regexp I-search: ")) ; 000101
1328 ;;; ((= i 4) (gettext "Failing regexp I-search backward: ")) ; 000100
1329 ;;; ((= i 3) (gettext "Failing search: ")) ; 000011
1330 ;;; ((= i 2) (gettext "Failing search backward: ")) ; 000010
1331 ;;; ((= i 1) (gettext "Failing I-search: ")) ; 000001
1332 ;;; ((= i 0) (gettext "Failing I-search backward: ")) ; 000000
1333 ;;; (t (error "Something's rotten")))))
1336 ;;;========================================================
1339 (put 'isearch-printing-char 'isearch-command t)
1340 (put 'isearch-return-char 'isearch-command t)
1341 (put 'isearch-repeat-forward 'isearch-command t)
1342 (put 'isearch-repeat-backward 'isearch-command t)
1343 (put 'isearch-delete-char 'isearch-command t)
1344 (put 'isearch-help-or-delete-char 'isearch-command t)
1345 (put 'isearch-abort 'isearch-command t)
1346 (put 'isearch-quote-char 'isearch-command t)
1347 (put 'isearch-exit 'isearch-command t)
1348 (put 'isearch-printing-char 'isearch-command t)
1349 (put 'isearch-printing-char 'isearch-command t)
1350 (put 'isearch-yank-word 'isearch-command t)
1351 (put 'isearch-yank-line 'isearch-command t)
1352 (put 'isearch-yank-kill 'isearch-command t)
1353 (put 'isearch-yank-sexp 'isearch-command t)
1354 (put 'isearch-*-char 'isearch-command t)
1355 (put 'isearch-*-char 'isearch-command t)
1356 (put 'isearch-|-char 'isearch-command t)
1357 (put 'isearch-toggle-regexp 'isearch-command t)
1358 (put 'isearch-toggle-case-fold 'isearch-command t)
1359 (put 'isearch-edit-string 'isearch-command t)
1360 (put 'isearch-mode-help 'isearch-command t)
1361 (put 'isearch-ring-advance 'isearch-command t)
1362 (put 'isearch-ring-retreat 'isearch-command t)
1363 (put 'isearch-ring-advance-edit 'isearch-command t)
1364 (put 'isearch-ring-retreat-edit 'isearch-command t)
1365 (put 'isearch-whitespace-chars 'isearch-command t)
1366 (put 'isearch-complete 'isearch-command t)
1367 (put 'isearch-complete-edit 'isearch-command t)
1368 (put 'isearch-edit-string 'isearch-command t)
1369 (put 'isearch-toggle-regexp 'isearch-command t)
1370 (put 'isearch-forward-exit-minibuffer 'isearch-command t)
1371 (put 'isearch-reverse-exit-minibuffer 'isearch-command t)
1372 (put 'isearch-nonincremental-exit-minibuffer 'isearch-command t)
1373 (put 'isearch-yank-x-selection 'isearch-command t)
1374 (put 'isearch-yank-x-clipboard 'isearch-command t)
1376 ;; scrolling the scrollbar should not terminate isearch.
1378 ;; vertical scrollbar:
1379 (put 'scrollbar-line-up 'isearch-command t)
1380 (put 'scrollbar-line-down 'isearch-command t)
1381 (put 'scrollbar-page-up 'isearch-command t)
1382 (put 'scrollbar-page-down 'isearch-command t)
1383 (put 'scrollbar-to-top 'isearch-command t)
1384 (put 'scrollbar-to-bottom 'isearch-command t)
1385 (put 'scrollbar-vertical-drag 'isearch-command t)
1387 ;; horizontal scrollbar:
1388 (put 'scrollbar-char-left 'isearch-command t)
1389 (put 'scrollbar-char-right 'isearch-command t)
1390 (put 'scrollbar-page-left 'isearch-command t)
1391 (put 'scrollbar-page-right 'isearch-command t)
1392 (put 'scrollbar-to-left 'isearch-command t)
1393 (put 'scrollbar-to-right 'isearch-command t)
1394 (put 'scrollbar-horizontal-drag 'isearch-command t)
1396 (defun isearch-pre-command-hook ()
1398 ;; For use as the value of `pre-command-hook' when isearch-mode is active.
1399 ;; If the command about to be executed is not one of the isearch commands,
1400 ;; then isearch-mode is turned off before that command is executed.
1402 ;; If the command about to be executed is self-insert-command, or is a
1403 ;; keyboard macro of a single key sequence which is bound to self-insert-
1404 ;; command, then we add those chars to the search ring instead of inserting
1405 ;; them in the buffer. In this way, the set of self-searching characters
1406 ;; need not be exhaustively enumerated, but is derived from other maps.
1408 (cond ((not (eq (current-buffer) isearch-buffer))
1409 ;; If the buffer (likely meaning "frame") has changed, bail.
1410 ;; This can also happen if a proc filter has popped up another
1411 ;; buffer, which is arguably a bad thing for it to have done,
1412 ;; but the way in which isearch would have hosed you in that
1413 ;; case is unarguably even worse. -jwz
1416 (isearch-maybe-frob-keyboard-macros)
1417 (if (and this-command
1418 (symbolp this-command)
1419 (get this-command 'isearch-command))
1420 nil ; then continue.
1423 (defun isearch-maybe-frob-keyboard-macros ()
1425 ;; If the command about to be executed is `self-insert-command' then change
1426 ;; the command to `isearch-printing-char' instead, meaning add the last-
1427 ;; typed character to the search string.
1429 ;; If `this-command' is a string or a vector (that is, a keyboard macro)
1430 ;; and it contains only one command, which is bound to self-insert-command,
1431 ;; then do the same thing as for self-inserting commands: arrange for that
1432 ;; character to be added to the search string. If we didn't do this, then
1433 ;; typing a compose sequence (a la x-compose.el) would terminate the search
1434 ;; and insert the character, instead of searching for that character.
1436 ;; We should continue doing this, since it's pretty much the behavior one
1437 ;; would expect, but it will stop being so necessary once key-translation-
1438 ;; map exists and is used by x-compose.el and things like it, since the
1439 ;; translation will have been done before we see the keys.
1441 (cond ((eq this-command 'self-insert-command)
1442 (setq this-command 'isearch-printing-char))
1443 ((and (or (stringp this-command) (vectorp this-command))
1444 (eq (key-binding this-command) 'self-insert-command))
1445 (setq last-command-event (character-to-event (aref this-command 0))
1446 last-command-char (and (stringp this-command)
1447 (aref this-command 0))
1448 this-command 'isearch-printing-char))
1452 ;;;========================================================
1455 (defcustom isearch-highlight t
1456 "*Whether isearch and query-replace should highlight the text which
1457 currently matches the search-string.")
1459 (defvar isearch-extent nil)
1461 ;; this face is initialized by x-faces.el since isearch is preloaded.
1462 ;; this face is now created in initialize-faces
1463 ;;(make-face 'isearch)
1465 (defun isearch-make-extent (begin end)
1466 (let ((x (make-extent begin end (current-buffer))))
1467 ;; make the isearch extent always take prescedence over any mouse-
1468 ;; highlighted extents we may be passing through, since isearch, being
1469 ;; modal, is more interesting (there's nothing they could do with a
1470 ;; mouse-highlighted extent while in the midst of a search anyway).
1471 (set-extent-priority x (1+ mouse-highlight-priority))
1472 (set-extent-face x 'isearch)
1473 (setq isearch-extent x)))
1475 (defun isearch-highlight (begin end)
1476 (if (null isearch-highlight)
1478 ;; make sure isearch-extent is in the current buffer
1479 (or (extentp isearch-extent)
1480 (isearch-make-extent begin end))
1481 (set-extent-endpoints isearch-extent begin end (current-buffer))))
1483 (defun isearch-dehighlight (totally)
1484 (if (and isearch-highlight isearch-extent)
1486 (let ((inhibit-quit t))
1487 (if (extentp isearch-extent)
1488 (delete-extent isearch-extent))
1489 (setq isearch-extent nil))
1490 (if (extentp isearch-extent)
1491 (detach-extent isearch-extent)
1492 (setq isearch-extent nil)))))
1495 ;;;========================================================
1498 (defun isearch-search ()
1499 ;; Do the search with the current search string.
1500 (isearch-message nil t)
1502 (condition-case lossage
1503 (let ((inhibit-quit nil)
1504 (case-fold-search isearch-case-fold-search))
1505 (if isearch-regexp (setq isearch-invalid-regexp nil))
1506 (setq isearch-success
1510 'word-search-forward 'word-search-backward))
1513 're-search-forward 're-search-backward))
1515 (if isearch-forward 'search-forward 'search-backward)))
1516 isearch-string nil t))
1517 (setq isearch-just-started nil)
1519 (setq isearch-other-end
1520 (if isearch-forward (match-beginning 0) (match-end 0)))))
1522 (quit (setq unread-command-event (character-to-event (quit-char)))
1523 (setq isearch-success nil))
1526 (setq isearch-invalid-regexp (car (cdr lossage)))
1528 "\\`Premature \\|\\`Unmatched \\|\\`Invalid "
1529 isearch-invalid-regexp)
1530 (setq isearch-invalid-regexp (gettext "incomplete input")))))
1535 ;; If we're being run inside a keyboard macro, then the call to
1536 ;; ding will signal an error (to terminate the macro). We must
1537 ;; turn off isearch-mode first, so that we aren't still in isearch
1538 ;; mode after the macro exits. Note that isearch-recursive-edit
1539 ;; must not be true if a keyboard macro is executing.
1540 (if (and executing-kbd-macro (not defining-kbd-macro))
1543 (ding nil 'isearch-failed)))
1545 ;; Ding if failed this time after succeeding last time.
1546 (and (nth 3 (car isearch-cmds))
1547 (ding nil 'isearch-failed))
1548 (goto-char (nth 2 (car isearch-cmds)))))
1550 ;;;=================================================
1551 ;; This is called from incremental-search
1552 ;; if the first input character is the exit character.
1554 ;; We store the search string in `isearch-string'
1555 ;; which has been bound already by `isearch-search'
1556 ;; so that, when we exit, it is copied into `search-last-string'.
1558 ;(defun nonincremental-search (forward regexp)
1559 ; ;; This may be broken. Anyway, it is replaced by the isearch-edit-string.
1560 ; ;; Missing features: word search option, command history.
1561 ; (setq isearch-forward forward
1562 ; isearch-regexp regexp)
1563 ; (let (char function
1565 ; (cursor-in-echo-area t))
1566 ; ;; Prompt assuming not word search,
1567 ; (setq isearch-message
1568 ; (if isearch-regexp
1569 ; (if isearch-forward "Regexp search: "
1570 ; "Regexp search backward: ")
1571 ; (if isearch-forward "Search: " "Search backward: ")))
1572 ; (message "%s" isearch-message)
1573 ; ;; Read 1 char and switch to word search if it is ^W.
1574 ; (setq char (read-char))
1575 ; (if (eq char search-yank-word-char)
1576 ; (setq isearch-message (if isearch-forward "Word search: "
1577 ; "Word search backward: "))
1578 ; ;; Otherwise let that 1 char be part of the search string.
1579 ; (setq unread-command-event (character-to-event char))
1582 ; (if (eq char search-yank-word-char)
1583 ; (if isearch-forward 'word-search-forward 'word-search-backward)
1584 ; (if isearch-regexp
1585 ; (if isearch-forward 're-search-forward 're-search-backward)
1586 ; (if isearch-forward 'search-forward 'search-backward))))
1587 ; ;; Read the search string with corrected prompt.
1588 ; (setq isearch-string (read-string isearch-message isearch-string))
1589 ; ;; Empty means use default.
1590 ; (if (= 0 (length isearch-string))
1591 ; (setq isearch-string search-last-string)
1592 ; ;; Set last search string now so it is set even if we fail.
1593 ; (setq search-last-string isearch-string))
1594 ; ;; Since we used the minibuffer, we should be available for redo.
1595 ; (setq command-history
1596 ; (cons (list function isearch-string) command-history))
1597 ; ;; Go ahead and search.
1598 ; (if search-caps-disable-folding
1599 ; (setq isearch-case-fold-search
1600 ; (no-upper-case-p isearch-string isearch-regexp)))
1601 ; (let ((case-fold-search isearch-case-fold-search))
1602 ; (funcall function isearch-string))))
1604 (defun isearch-no-upper-case-p (string)
1605 "Return t if there are no upper case chars in string.
1606 But upper case chars preceded by \\ do not count since they
1607 have special meaning in a regexp."
1608 ;; this incorrectly returns t for "\\\\A"
1609 (let ((case-fold-search nil))
1610 (not (string-match "\\(^\\|[^\\]\\)[A-Z]" string))))
1611 (make-obsolete 'isearch-no-upper-case-p 'no-upper-case-p)
1613 ;; Used by etags.el and info.el
1614 (defmacro with-caps-disable-folding (string &rest body) "\
1615 Eval BODY with `case-fold-search' let to nil if STRING contains
1616 uppercase letters and `search-caps-disable-folding' is t."
1617 `(let ((case-fold-search
1618 (if (and case-fold-search search-caps-disable-folding)
1619 (isearch-no-upper-case-p ,string)
1622 (make-obsolete 'with-caps-disable-folding 'with-search-caps-disable-folding)
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