-;; Incremental search minor mode.
-;; Copyright (C) 1992 Free Software Foundation, Inc.
+;;; isearch.el --- incremental search minor mode.
-;; LCD Archive Entry:
-;; isearch-mode|Daniel LaLiberte|liberte@cs.uiuc.edu
-;; |A minor mode replacement for isearch.el.
-;; |$Date: 92/09/14 16:26:02 $|$Revision: 1.4 $|~/modes/isearch-mode.el
+;; Copyright (C) 1992, 1993 Free Software Foundation, Inc.
+
+;; Author: Daniel LaLiberte <liberte@cs.uiuc.edu>
+
+;; |$Date: 1993/07/15 03:46:02 $|$Revision: 1.46 $
;; This file is not yet part of GNU Emacs, but it is based almost
;; entirely on isearch.el which is part of GNU Emacs.
;; file named COPYING. Among other things, the copyright notice
;; and this notice must be preserved on all copies.
+;;; Commentary:
+
;;;====================================================================
;; Instructions
;; isearch-forward, etc, will then use isearch-mode instead of
;; isearch.
-;; (fset 'isearch 'isearch-mode)
+;; (defalias 'isearch 'isearch-mode)
;; (autoload 'isearch-mode "isearch-mode")
;; For programmed use of isearch-mode, e.g. calling (isearch-forward),
;; of isearch-forward, etc. found in this file instead of those in
;; loaddefs.el. The simplest way to ensure this is to just load
;; isearch-mode explicitly in your .emacs instead of using the above
-;; fset and autoload.
+;; defalias and autoload.
;; (load "isearch-mode")
;; the last possible moment.
;; TODO
-;; - Integrate the emacs 19 generalized commmand history.
+;; - Integrate the emacs 19 generalized command history.
;; - Think about incorporating query-replace.
;; - Hooks and options for failed search.
-;;;====================================================================
-;;; Change History
+;;; Change Log:
+
+;;; Changes before those recorded in ChangeLog:
-;;; $Header: /import/kaplan/kaplan/liberte/Isearch/RCS/isearch-mode.el,v 1.4 92/09/14 16:26:02 liberte Exp Locker: liberte $
-;;; $Log: isearch-mode.el,v $
;;; Revision 1.4 92/09/14 16:26:02 liberte
;;; Added prefix args to isearch-forward, etc. to switch between
;;; string and regular expression searching.
;;; 3/18/92 Fixed invalid-regexp.
;;; 3/18/92 Fixed yanking in regexps.
+;;; Code:
\f
;;;=========================================================================
;; Each of the tests below must work on any version of emacs.
;; (Perhaps provide and featurep could be used for this purpose.)
-(defconst isearch-frames-exist (fboundp 'select-frame)) ;; emacs 19
+(defconst isearch-gnu-emacs-events (fboundp 'set-frame-height)) ;; emacs 19
(defconst isearch-pre-command-hook-exists (boundp 'pre-command-hook)) ;; lemacs
(defconst isearch-event-data-type nil) ;; lemacs
;;;========================================================================
;;; Some additional options and constants.
-(defvar search-upper-case t
+(defvar search-upper-case 'not-yanks
"*If non-nil, upper case chars disable case fold searching.
That is, upper and lower case chars must match exactly.
This applies no matter where the chars come from, but does not
;; currently a clean thing to do. Once highlighting is made clean,
;; this feature can be re-enabled and advertised.
(defvar search-highlight nil
- "Whether isearch and query-replace should highlight the text which
-currently matches the search-string.")
-
+ "*Non-nil means incremental search highlights the current match.")
(defvar isearch-mode-hook nil
"Function(s) to call after starting up an incremental search.")
(or isearch-mode-map
(let* ((i 0)
(map (make-keymap)))
-
+ (or (vectorp (nth 1 map))
+ (error "The initialization of isearch-mode-map must be updated"))
+ ;; Give this map a vector 256 long, for dense binding
+ ;; of a larger range of ordinary characters.
+ (setcar (cdr map) (make-vector 256 nil))
+
+ ;; Make function keys, etc, exit the search.
+ (define-key map [t] 'isearch-other-control-char)
;; Control chars, by default, end isearch mode transparently.
+ ;; We need these explicit definitions because, in a dense keymap,
+ ;; the binding for t does not affect characters.
+ ;; We use a dense keymap to save space.
(while (< i ?\ )
(define-key map (make-string 1 i) 'isearch-other-control-char)
(setq i (1+ i)))
- ;; Printing chars extend the selection by default.
- ;; This assumes that all remaining chars are printable.
- (while (< i 128)
- (define-key map (make-string 1 i) 'isearch-printing-char)
+ ;; Printing chars extend the search string by default.
+ (setq i ?\ )
+ (while (< i (length (nth 1 map)))
+ (define-key map (vector i) 'isearch-printing-char)
(setq i (1+ i)))
;; Several non-printing chars change the searching behavior.
(define-key map "\C-q" 'isearch-quote-char)
- ;; (define-key map "\r" 'isearch-return-char)
- ;; For version 19, RET (C-m) terminates search and LFD (C-j) matches eol.
- ;; We could make this conditional.
(define-key map "\r" 'isearch-exit)
(define-key map "\C-j" 'isearch-printing-char)
(define-key map "\t" 'isearch-printing-char)
(define-key map "\C-w" 'isearch-yank-word)
(define-key map "\C-y" 'isearch-yank-line)
+ ;; Bind the ASCII-equivalent "function keys" explicitly
+ ;; if we bind their equivalents,
+ ;; since otherwise the default binding would override.
+ ;; We bind [escape] below.
+ (define-key map [tab] 'isearch-printing-char)
+ (define-key map [delete] 'isearch-delete-char)
+ (define-key map [backspace] 'isearch-delete-char)
+ (define-key map [return] 'isearch-exit)
+ (define-key map [newline] 'isearch-printing-char)
+
;; Define keys for regexp chars * ? |.
;; Nothing special for + because it matches at least once.
(define-key map "*" 'isearch-*-char)
(define-key map "?" 'isearch-*-char)
(define-key map "|" 'isearch-|-char)
- ;; You can reenable global keys by binding them locally to nil.
- ;; For the help char this doesnt work quite as expected because
- ;; isearch-mode is not a major mode. Also the echo area is not
- ;; restored after the help command while isearch-mode is
- ;; still active. Furthermore, we should not assume that the
- ;; help-command is on C-h. But here is how it would be done:
- ;; (define-key map "\C-h" nil)
-
- ;; Instead bind C-h to special help command for isearch-mode.
- (define-key map "\C-h" 'isearch-mode-help)
+;;; Turned off because I find I expect to get the global definition--rms.
+;;; ;; Instead bind C-h to special help command for isearch-mode.
+;;; (define-key map "\C-h" 'isearch-mode-help)
;; To handle local bindings with meta char prefix keys, define
;; another full keymap. This must be done for any other prefix
;; keys as well, one full keymap per char of the prefix key. It
;; would be simpler to disable the global keymap, and/or have a
;; default local key binding for any key not otherwise bound.
- (define-key map (char-to-string meta-prefix-char) (make-keymap))
- (setq i 0)
- (while (< i 128)
- (define-key map (char-to-string (+ 128 i));; Needs to be generalized.
- 'isearch-other-meta-char)
- (setq i (1+ i)))
+ (let ((meta-map (make-sparse-keymap)))
+ (define-key map (char-to-string meta-prefix-char) meta-map)
+ (define-key map [escape] meta-map))
+ (define-key map (vector meta-prefix-char t) 'isearch-other-meta-char)
(define-key map "\M-n" 'isearch-ring-advance)
(define-key map "\M-p" 'isearch-ring-retreat)
+
(define-key map "\M-\t" 'isearch-complete)
;; For emacs 19, switching frames should terminate isearch-mode
- (if isearch-frames-exist
+ (if isearch-gnu-emacs-events
(define-key map [switch-frame] 'isearch-switch-frame-handler))
(setq isearch-mode-map map)
(or minibuffer-local-isearch-map
(let ((map (copy-keymap minibuffer-local-map)))
(define-key map "\r" 'isearch-nonincremental-exit-minibuffer)
-;; (define-key map "\M-n" 'isearch-ring-advance-edit)
-;; (define-key map "\M-p" 'isearch-ring-retreat-edit)
+ (define-key map "\M-n" 'isearch-ring-advance-edit)
+ (define-key map "\M-p" 'isearch-ring-retreat-edit)
(define-key map "\M-\t" 'isearch-complete-edit)
(define-key map "\C-s" 'isearch-forward-exit-minibuffer)
(define-key map "\C-r" 'isearch-reverse-exit-minibuffer)
;;;===============================================================
;;; Entry points to isearch-mode.
;;; These four functions should replace those in loaddefs.el
-;;; An alternative is to fset isearch-forward etc to isearch-mode,
+;;; An alternative is to defalias isearch-forward etc to isearch-mode,
;;; and look at this-command to set the options accordingly.
-(defun isearch-forward (&optional regexp-p)
+(defun isearch-forward (&optional regexp-p no-recursive-edit)
"\
Do incremental search forward.
With a prefix argument, do an incremental regular expression search instead.
Type \\[isearch-yank-line] to yank rest of line onto end of search string\
and search for it.
Type \\[isearch-quote-char] to quote control character to search for it.
-Type \\[isearch-whitespace-chars] to match all whitespace chars in regexp.
\\[isearch-abort] while searching or when search has failed cancels input\
back to what has
been found successfully.
If this function is called non-interactively, it does not return to
the calling function until the search is done."
- (interactive "P")
- (isearch-mode t (not (null regexp-p)) nil (not (interactive-p))))
+ (interactive "P\np")
+ (isearch-mode t (not (null regexp-p)) nil (not no-recursive-edit)))
-(defun isearch-forward-regexp (&optional regexp-p)
+(defun isearch-forward-regexp (&optional not-regexp no-recursive-edit)
"\
Do incremental search forward for regular expression.
With a prefix argument, do a regular string search instead.
Like ordinary incremental search except that your input
is treated as a regexp. See \\[isearch-forward] for more info."
- (interactive)
- (isearch-mode t (null regexp-p) nil (not (interactive-p))))
+ (interactive "P\np")
+ (isearch-mode t (null not-regexp) nil (not no-recursive-edit)))
-(defun isearch-backward (&optional regexp-p)
+(defun isearch-backward (&optional regexp-p no-recursive-edit)
"\
Do incremental search backward.
With a prefix argument, do a regular expression search instead.
See \\[isearch-forward] for more information."
- (interactive)
- (isearch-mode nil (not (null regexp-p)) nil (not (interactive-p))))
+ (interactive "P\np")
+ (isearch-mode nil (not (null regexp-p)) nil (not no-recursive-edit)))
-(defun isearch-backward-regexp (&optional regexp-p)
+(defun isearch-backward-regexp (&optional not-regexp no-recursive-edit)
"\
Do incremental search backward for regular expression.
With a prefix argument, do a regular string search instead.
Like ordinary incremental search except that your input
is treated as a regexp. See \\[isearch-forward] for more info."
- (interactive)
- (isearch-mode nil (null regexp-p) nil (not (interactive-p))))
+ (interactive "P\np")
+ (isearch-mode nil (null not-regexp) nil (not no-recursive-edit)))
(defun isearch-mode-help ()
isearch-small-window nil
isearch-opoint (point)
- isearch-window-configuration (current-window-configuration)
isearch-old-local-map (current-local-map)
search-ring-yank-pointer nil
regexp-search-ring-yank-pointer nil)
- (if isearch-pre-command-hook-exists
- (add-hook 'pre-command-hook 'isearch-pre-command-hook))
+ (if isearch-slow-terminal-mode
+ (setq isearch-window-configuration (current-window-configuration)))
+
+;; This was for Lucid Emacs. But now that we have pre-command-hook,
+;; it causes trouble.
+;; (if isearch-pre-command-hook-exists
+;; (add-hook 'pre-command-hook 'isearch-pre-command-hook))
(setq isearch-mode " Isearch") ;; forward? regexp?
(set-buffer-modified-p (buffer-modified-p)) ; update modeline
+ ;; It is ugly to show region highlighting while the search
+ ;; is going on. And we don't want the mark active at the end either.
+ (setq deactivate-mark t)
+
(isearch-push-state)
(use-local-map isearch-mode-map)
;; isearch-mode can be made modal (in the sense of not returning to
;; the calling function until searching is completed) by entering
;; a recursive-edit and exiting it when done isearching.
- (if recursive-edit (recursive-edit))
+ (if recursive-edit
+ (let ((isearch-recursive-edit t))
+ (recursive-edit)))
)
;; Called after each command to update the display.
(if (if isearch-event-data-type
(null unread-command-event)
- (if isearch-frames-exist
- (null unread-command-char)
+ (if isearch-gnu-emacs-events
+ (null unread-command-events)
(< unread-command-char 0)))
(progn
(if (not (input-pending-p))
)
-(defun isearch-done ()
+(defun isearch-done (&optional nopush)
;; Called by all commands that terminate isearch-mode.
+ ;; If NOPUSH is non-nil, we don't push the string on the search ring.
(use-local-map isearch-old-local-map)
;; (setq pre-command-hook isearch-old-pre-command-hook) ; for lemacs
(isearch-dehighlight t)
(let ((found-start (window-start (selected-window)))
(found-point (point)))
- (set-window-configuration isearch-window-configuration)
+ (if isearch-window-configuration
+ (set-window-configuration isearch-window-configuration))
+
+ (if isearch-small-window
+ (goto-char found-point)
+ ;; Exiting the save-window-excursion clobbers window-start; restore it.
+ (set-window-start (selected-window) found-start t)))
;; If there was movement, mark the starting position.
;; Maybe should test difference between and set mark iff > threshold.
(if (/= (point) isearch-opoint)
- (push-mark isearch-opoint)
+ (progn
+ (push-mark isearch-opoint t)
+ (deactivate-mark)
+ (or executing-macro (> (minibuffer-depth) 0)
+ (message "Mark saved where search started")))
;; (message "") why is this needed?
)
- (if isearch-small-window
- (goto-char found-point)
- ;; Exiting the save-window-excursion clobbers window-start; restore it.
- (set-window-start (selected-window) found-start t)))
(setq isearch-mode nil)
(set-buffer-modified-p (buffer-modified-p)) ;; update modeline
- (if (> (length isearch-string) 0)
+ (if (and (> (length isearch-string) 0) (not nopush))
;; Update the ring data.
(if isearch-regexp
(if (or (null regexp-search-ring)
;;;=======================================================
;;; Switching buffers should first terminate isearch-mode.
-;;; This is done quite differently for each varient of emacs.
+;;; This is done quite differently for each variant of emacs.
;;; For lemacs, see Exiting in lemacs below
;; For Emacs 19, the frame switch event is handled.
(interactive) ;; Is this necessary?
;; First terminate isearch-mode.
(isearch-done)
- (select-frame (car (cdr (isearch-last-command-char)))))
+ (handle-switch-frame (car (cdr (isearch-last-command-char)))))
;;;========================================================
\\[isearch-forward-exit-minibuffer] to resume isearching forward.
\\[isearch-backward-exit-minibuffer] to resume isearching backward.
\\[isearch-ring-advance-edit] to replace the search string with the next item in the search ring.
-\\[isearch-ring-retreat-edit] to replace the search string with the previou item in the search ring.
+\\[isearch-ring-retreat-edit] to replace the search string with the previous item in the search ring.
\\[isearch-complete-edit] to complete the search string using the search ring.
If first char entered is \\[isearch-yank-word], then do word search instead."
;; Mainly, isearch-mode must be terminated while editing and then restarted.
;; If there were a way to catch any change of buffer from the minibuffer,
;; this could be simplified greatly.
- ;; Editing doesnt back up the search point. Should it?
+ ;; Editing doesn't back up the search point. Should it?
(interactive)
(condition-case err
- (let (isearch-nonincremental ; should search nonincrementally?
+ (let ((isearch-nonincremental isearch-nonincremental)
;; Locally bind all isearch global variables to protect them
;; from recursive isearching.
;; This is so that the user can do anything without failure,
;; like switch buffers and start another isearch, and return.
(condition-case err
- (isearch-done)
+ (isearch-done t)
(exit nil)) ; was recursive editing
(isearch-message) ;; for read-char
(unwind-protect
(let* (;; Why does following read-char echo?
;;(echo-keystrokes 0) ;; not needed with above message
- (cursor-in-echo-area t)
- (e (if isearch-event-data-type (allocate-event) (read-char)))
+ (e (let ((cursor-in-echo-area t))
+ (if isearch-event-data-type
+ (allocate-event) (read-char))))
;; Binding minibuffer-history-symbol to nil is a work-around
;; for some incompatibility with gmhist.
(minibuffer-history-symbol))
(isearch-unread e))
(setq cursor-in-echo-area nil)
(setq isearch-new-string
- (let ((search-ring search-ring)
- (regexp-search-ring regexp-search-ring))
+ (let (junk-ring)
(read-from-minibuffer (isearch-message-prefix)
isearch-string
minibuffer-local-isearch-map nil
- (cons
- (if isearch-regexp
- 'regexp-search-ring
- 'search-ring)
- (or
- (if isearch-regexp
- regexp-search-ring-yank-pointer
- search-ring-yank-pointer)
- 0))))
+ 'junk-ring))
isearch-new-message (mapconcat 'text-char-description
isearch-new-string "")))
;; Always resume isearching by restarting it.
Otherwise, revert to previous successful search and continue searching.
Use `isearch-exit' to quit without signalling."
(interactive)
-;; (ding) signal instead below, if quiting
+;; (ding) signal instead below, if quitting
(discard-input)
(if isearch-success
;; If search is successful, move back to starting point
;; and really do quit.
(progn (goto-char isearch-opoint)
- (isearch-done) ; exit isearch
+ (isearch-done t) ; exit isearch
(signal 'quit nil)) ; and pass on quit signal
;; If search is failing, rub out until it is once more successful.
(while (not isearch-success) (isearch-pop-state))
(isearch-process-search-char (isearch-last-command-char)))
-(defun isearch-other-control-char ()
- "Any other control char => unread it and exit the search normally.
-But only if `search-exit-option' is non-nil, the default.
-If it is the symbol `edit', the search string is edited in the minibuffer
-and the control char is unread so that it is applied to the editing."
- (interactive)
- (cond
- ((eq search-exit-option 'edit)
- (isearch-unread (isearch-last-command-char))
- (isearch-edit-string))
- (search-exit-option ;; any other non-nil value
- (isearch-unread (isearch-last-command-char))
- (isearch-done))
- (t ;; search-exit-option is nil
- (isearch-process-search-char (isearch-last-command-char)))
- ))
-
+(defalias 'isearch-other-control-char 'isearch-other-meta-char)
(defun isearch-other-meta-char ()
- "Any other meta char => exit the search normally and reexecute the whole key.
-But only if `search-exit-option' is non-nil."
- ;; This will probably work in place of isearch-other-control-char too,
- ;; but here we use unwind-protect and command-execute since it is
- ;; a multi-char key we would want to unread.
+ "Exit the search normally and reread this key sequence.
+But only if `search-exit-option' is non-nil, the default.
+If it is the symbol `edit', the search string is edited in the minibuffer
+and the meta character is unread so that it applies to editing the string."
(interactive)
- (cond
- (search-exit-option
- (unwind-protect
- ;; Exit recursive edit and restore the outside keymap.
- (isearch-done)
- ;; Reexecute the key with the outside keymap.
- ;; Note: this doesnt work unless the entered key is the same
- ;; as some outside key since command-execute only takes whole keys.
- ;; So three character keys typically will not work!
- ;; Also, executing the command here may not work if isearch was
- ;; invoked non-interactively, since other input may be expected.
- ;; We also can't do isearch-edit-string as in -other-control-char.
- ;; because we need to set unread-command-key, if that existed.
- ;; So a new unread-command-key would solve all these problems.
- (command-execute (this-command-keys))))
- (t ;; otherwise nil
- (isearch-process-search-string (this-command-keys) (this-command-keys))
- )))
-
+ (cond ((eq search-exit-option 'edit)
+ (let ((key (this-command-keys)))
+ (apply 'isearch-unread (listify-key-sequence key)))
+ (isearch-edit-string))
+ (search-exit-option
+ (let ((key (this-command-keys))
+ (index 0)
+ window)
+ (apply 'isearch-unread (listify-key-sequence key))
+ ;; Properly handle scroll-bar and mode-line clicks
+ ;; for which a dummy prefix event was generated as (aref key 0).
+ (and (> (length key) 1)
+ (symbolp (aref key 0))
+ (listp (aref key 1))
+ (consp (posn-point (event-start (aref key 1))))
+ (setq index 1))
+ ;; If we got a mouse click, maybe it was read with the buffer
+ ;; it was clicked on. If so, that buffer, not the current one,
+ ;; is in isearch mode. So end the search in that buffer.
+ (if (and (listp (aref key index))
+ (setq window (posn-window (event-start (aref key index))))
+ (windowp window))
+ (save-excursion
+ (set-buffer (window-buffer window))
+ (isearch-done))
+ (isearch-done))))
+ (t;; otherwise nil
+ (isearch-process-search-string (this-command-keys)
+ (this-command-keys)))))
(defun isearch-quote-char ()
"Quote special characters for incremental search."
(isearch-process-search-char ?\n))
(defun isearch-printing-char ()
- "Any other printing character => add it to the search string and search."
+ "Add this ordinary printing character to the search string and search."
(interactive)
(isearch-process-search-char (isearch-last-command-char)))
(defun isearch-whitespace-chars ()
"Match all whitespace chars, if in regexp mode.
-If not in regexp mode, activate word search."
+If you want to search for just a space, type C-q SPC."
(interactive)
(if isearch-regexp
(if search-whitespace-regexp
(isearch-process-search-string search-whitespace-regexp " ")
(isearch-printing-char))
(progn
- ;; This way of doing word search doesnt correctly extend current search.
+ ;; This way of doing word search doesn't correctly extend current search.
;; (setq isearch-word t)
;; (setq isearch-adjusted t)
;; (goto-char isearch-barrier)
(set yank-pointer-name
(setq yank-pointer
(% (+ (or yank-pointer 0)
- (if advance (+ length (% n length))))
+ ;; Add LENGTH here to ensure a positive result.
+ length
+ (% (- n) length))
length)))
- (if (= minibuffer-history-position narg)
- (error (if (= minibuffer-history-position 1)
- "End of history; no next item"
- "Beginning of history; no preceding item"))
(erase-buffer)
- (setq minibuffer-history-position narg)
- (let ((elt (nth (1- minibuffer-history-position)
- (symbol-value minibuffer-history-variable))))
- (insert
- (if minibuffer-history-sexp-flag
- (prin1-to-string elt)
- elt)))
- (goto-char (point-min))))))
+ (insert (nth yank-pointer ring))
+ (goto-char (point-max)))))
(defun isearch-ring-retreat-edit (n)
"Inserts the previous element of the search history into the minibuffer."
(defun isearch-search ()
;; Do the search with the current search string.
(isearch-message nil t)
- (if search-upper-case
- (setq isearch-case-fold-search (isearch-no-upper-case-p isearch-string)))
+ (if (and isearch-case-fold-search search-upper-case)
+ (setq isearch-case-fold-search
+ (isearch-no-upper-case-p isearch-string isearch-regexp)))
(condition-case lossage
(let ((inhibit-quit nil)
(case-fold-search isearch-case-fold-search))
(if (string-match
"\\`Premature \\|\\`Unmatched \\|\\`Invalid "
isearch-invalid-regexp)
- (setq isearch-invalid-regexp "incomplete input"))))
+ (setq isearch-invalid-regexp "incomplete input")))
+ (error
+ ;; stack overflow in regexp search.
+ (setq isearch-invalid-regexp (car (cdr lossage)))))
(if isearch-success
nil
;;;========================================================
;;; Highlighting
-(defun isearch-highlight (begin end))
-(defun isearch-dehighlight (totally))
+(defvar isearch-overlay nil)
-;; lemacs uses faces
-'(progn
-(defvar isearch-extent nil)
-
-(or (find-face 'isearch) ;; this face is initialized by x-faces.el
- (make-face 'isearch)) ;; since isearch is preloaded
-
-(defun isearch-lemacs-highlight (begin end)
- (if (null isearch-highlight)
+(defun isearch-highlight (beg end)
+ (if (null search-highlight)
nil
- (if (and (extentp isearch-extent)
- (eq (extent-buffer isearch-extent) (current-buffer)))
- (set-extent-endpoints isearch-extent begin end)
- (if (and (extentp isearch-extent)
- (bufferp (extent-buffer isearch-extent))
- (buffer-name (extent-buffer isearch-extent)))
- (delete-extent isearch-extent))
- (setq isearch-extent (make-extent begin end (current-buffer))))
- (set-extent-face isearch-extent 'isearch)))
-
-(defun isearch-lemacs-dehighlight (totally)
- (if (and isearch-highlight isearch-extent)
- (if totally
- (let ((inhibit-quit t))
- (if (and (extentp isearch-extent)
- (bufferp (extent-buffer isearch-extent))
- (buffer-name (extent-buffer isearch-extent)))
- (delete-extent isearch-extent))
- (setq isearch-extent nil))
- (if (and (extentp isearch-extent)
- (bufferp (extent-buffer isearch-extent))
- (buffer-name (extent-buffer isearch-extent)))
- (set-extent-face isearch-extent 'default)
- (isearch-dehighlight t)))))
-
-(fset 'isearch-highlight (symbol-function 'isearch-lemacs-highlight))
-(fset 'isearch-dehighlight (symbol-function 'isearch-lemacs-dehighlight))
-)
+ (or isearch-overlay (setq isearch-overlay (make-overlay beg end)))
+ (move-overlay isearch-overlay beg end (current-buffer))
+ (overlay-put isearch-overlay 'face
+ (if (internal-find-face 'isearch nil)
+ 'isearch 'region))))
+
+(defun isearch-dehighlight (totally)
+ (if isearch-overlay
+ (delete-overlay isearch-overlay)))
;;;===========================================================
;;; General utilities
-;; (fset 'isearch-member-equal (symbol-function 'member)) ; for emacs 19
-
-(defun isearch-member-equal (item list)
- "Return non-nil if ITEM is `equal' to some item in LIST.
-Actually return the list whose car is that item."
- (while (and list (not (equal item (car list))))
- (setq list (cdr list)))
- list)
-
-(defun isearch-no-upper-case-p (string)
- "Return t if there are no upper case chars in string.
-But upper case chars preceeded by \\ (but not \\\\) do not count since they
-have special meaning in a regexp."
+(defun isearch-no-upper-case-p (string regexp-flag)
+ "Return t if there are no upper case chars in STRING.
+If REGEXP-FLAG is non-nil, disregard letters preceeded by `\\' (but not `\\\\')
+since they have special meaning in a regexp."
(let ((case-fold-search nil))
- (not (string-match "\\(^\\|\\\\\\\\\\|[^\\]\\)[A-Z]" string))))
+ (not (string-match (if regexp-flag "\\(^\\|\\\\\\\\\\|[^\\]\\)[A-Z]"
+ "[A-Z]")
+ string))))
;;;=================================================
-;;; Special functions for lemacs events.
+;; Portability functions to support various Emacs versions.
;; To quiet the byte-compiler.
(defvar unread-command-event)
+(defvar unread-command-events)
(defvar last-command-event)
(defun isearch-char-to-string (c)
(if (integerp c)
(make-string 1 c)
- (make-string 1 (event-to-character c))))
+ (if (and (symbolp c) (get c 'ascii-character))
+ (make-string 1 (get c 'ascii-character))
+ (make-string 1 (event-to-character c)))))
(defun isearch-text-char-description (c)
(isearch-char-to-string c))
-(defun isearch-unread (char-or-event)
- ;; General function to unread a character or event.
- (if isearch-event-data-type
- (setq unread-command-event char-or-event)
- (setq unread-command-char char-or-event)))
+(defun isearch-unread (&rest char-or-events)
+ ;; General function to unread characters or events.
+ (if isearch-gnu-emacs-events
+ (setq unread-command-events
+ (append char-or-events unread-command-events))
+ (let ((char (if (cdr char-or-events)
+ (progn
+ (while (cdr char-or-events)
+ (setq char-or-events (cdr char-or-events)))
+ (+ 128 (car char-or-events)))
+ (car char-or-events))))
+ (if isearch-event-data-type
+ (setq unread-command-event char)
+ (setq unread-command-char char)))))
(defun isearch-last-command-char ()
;; General function to return the last command character.
last-command-event
last-command-char))
-
-
-\f
-;;;========================================================
-;;; Exiting in lemacs
-
-;; This is a large amount of code to support automatic termination of
-;; isearch-mode when a command (however it is invoked) is not an
-;; isearch command, or the buffer is switched out from under
-;; isearch-mode. Only later versions of lemacs have the pre-command-hook.
-
-;;(if isearch-pre-command-hook-exists
-;;(progn
-
-;;;; This list must be modified whenever the available commands are modified.
-;;(mapcar (function (lambda (command)
-;; (put command 'isearch-command t)))
-;; '(isearch-printing-char
-;; isearch-return-char
-;; isearch-repeat-forward
-;; isearch-repeat-backward
-;; isearch-delete-char
-;; isearch-abort
-;; isearch-quote-char
-;; isearch-exit
-;; isearch-printing-char
-;; isearch-printing-char
-;; isearch-yank-word
-;; isearch-yank-line
-;; isearch-*-char
-;; isearch-*-char
-;; isearch-|-char
-;; isearch-toggle-regexp
-;; isearch-edit-string
-;; isearch-mode-help
-;; isearch-ring-advance
-;; isearch-ring-retreat
-;; isearch-ring-advance-edit
-;; isearch-ring-retreat-edit
-;; isearch-whitespace-chars
-;; isearch-complete
-;; isearch-complete-edit
-;; isearch-edit-string
-;; isearch-toggle-regexp
-;; ;; The following may not be needed since isearch-mode is off already.
-;; isearch-forward-exit-minibuffer
-;; isearch-reverse-exit-minibuffer
-;; isearch-nonincremental-exit-minibuffer))
-
-;;(defun isearch-pre-command-hook ()
-;; ;;
-;; ;; For use as the value of `pre-command-hook' when isearch-mode is active.
-;; ;; If the command about to be executed is not one of the isearch commands,
-;; ;; then isearch-mode is turned off before that command is executed.
-;; ;;
-;; ;; If the command about to be executed is self-insert-command, or is a
-;; ;; keyboard macro of a single key sequence which is bound to self-insert-
-;; ;; command, then we add those chars to the search ring instead of inserting
-;; ;; them in the buffer. In this way, the set of self-searching characters
-;; ;; need not be exhaustively enumerated, but is derived from other maps.
-;; ;;
-;; (isearch-maybe-frob-keyboard-macros)
-;; (if (and (symbolp this-command)
-;; (get this-command 'isearch-command))
-;; nil
-;; (isearch-done)))
-
-;;(defun isearch-maybe-frob-keyboard-macros ()
-;; ;;
-;; ;; If the command about to be executed is `self-insert-command' then change
-;; ;; the command to `isearch-printing-char' instead, meaning add the last-
-;; ;; typed character to the search string.
-;; ;;
-;; ;; If `this-command' is a string or a vector (that is, a keyboard macro)
-;; ;; and it contains only one command, which is bound to self-insert-command,
-;; ;; then do the same thing as for self-inserting commands: arrange for that
-;; ;; character to be added to the search string. If we didn't do this, then
-;; ;; typing a compose sequence (a la x-compose.el) would terminate the search
-;; ;; and insert the character, instead of searching for that character.
-;; ;;
-;; (cond ((eq this-command 'self-insert-command)
-;; (setq this-command 'isearch-printing-char))
-;; ((and (stringp this-command)
-;; (eq (key-binding this-command) 'self-insert-command))
-;; (setq last-command-char (aref this-command 0)
-;; last-command-event (character-to-event last-command-char)
-;; this-command 'isearch-printing-char))
-;; ((and (vectorp this-command)
-;; (eq (key-binding this-command) 'self-insert-command))
-;; (let* ((desc (aref this-command 0))
-;; (code (cond ((integerp desc) desc)
-;; ((symbolp desc) (get desc character-set-property))
-;; ((consp desc)
-;; (and (null (cdr desc))
-;; (get (car desc) character-set-property)))
-;; (t nil))))
-;; (if code
-;; (setq last-command-char code
-;; last-command-event (character-to-event last-command-char)
-;; this-command 'isearch-printing-char))))
-;; ))
-
-;;))
+;;; isearch.el ends here